INFRARED BURNER AND WARMER

Abstract

Disclosed are an infrared burner and a warmer. The infrared burner includes a cover, a chassis, a mounting bracket, a ceramic plate, a hollow air column and a strengthening net. The chassis is defined with a through hole. A bottom of the mounting bracket is mounted on the chassis and a top of the mounting bracket is mounted on the cover. The ceramic plate is defined with air holes and provided on the mounting bracket. The ceramic plate is enclosed with the mounting bracket. The chassis and the cover to form a combustion space. The hollow air column is defined with air holes and passes through the through hole to extend into the combustion space. A bottom of the strengthening net is connected with the chassis and a top of the strengthening net is connected with the cover, and the strengthening net is provided outside the ceramic plate.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to the Chinese Patent Application No. 202221564788.5, filed on Jun. 21, 2022, the entire contents of which are incorporated herein by reference.

TECHNICAL FIELD

The present disclosure relates to the technical field of heating devices, in particular to an infrared burner and a warmer.

BACKGROUND

Infrared burners have been widely applied in the field of heating devices because of high efficiency, energy saving, low pollution and other economical and practical advantages. Since the structure of the existing infrared burner is simple, the gas fails to disperse evenly, which cause the uneven heat distribution.

SUMMARY

The present disclosure provides an infrared burner and a warmer, which aims to solve the technical problem that the thermal energy is distributed unevenly caused by the uneven combustion in the infrared burner.

In order to achieve the above objective, the present disclosure provides an infrared burner. The infrared burner includes a cover, a chassis, a mounting bracket, a ceramic plate, a hollow air column and a strengthening net. The chassis is defined with a through hole. A bottom of the mounting bracket is mounted on the chassis and a top of the mounting bracket is mounted on the cover. The ceramic plate is defined with air holes and provided on the mounting bracket. The ceramic plate is enclosed with the mounting bracket, the chassis and the cover to form a combustion space. The hollow air column is defined with air holes and passes through the through hole to extend into the combustion space. A bottom of the strengthening net is connected with the chassis and a top of the strengthening net is connected with the cover, and the strengthening net is provided outside the ceramic plate.

In some embodiments, the chassis is rectangular. The infrared burner includes four mounting brackets, and the four mounting brackets are provided at four corners of the chassis, respectively.

In some embodiments, the mounting bracket is formed by enclosing a first shell with a second shell. The strengthening net includes a horizontal net and two vertical nets respectively connected with two sides of the horizontal net. A first insertion gap is formed on an edge of the first shell and a second insertion gap is formed on an edge of the second shell. The two vertical nets are inserted into and meshed with the first insertion gap and the second insertion gap in a one-to-one correspondence.

In some embodiments, both the first shell and the second shell are L-shaped. The first shell is located on a side away from the combustion space and the second shell is located on a side close to the combustion space.

In some embodiments, the strengthening net is in the form of a concave.

In some embodiments, the mounting bracket further includes a first reinforcing plate provided on a side of the second shell away from the second insertion gap.

In some embodiments, two second reinforcing plates are connected between any two adjacent mounting brackets. One of the second reinforcing plates is mounted on the chassis and the other one is mounted on the cover.

In some embodiments, both the chassis and the cover are provided with a limiting block. The limiting block includes a horizontal section and a vertical section. The horizontal section is connected with the chassis or the cover and the vertical section is in abutment with a second reinforcing plate.

In some embodiments, the hollow air column includes an air inlet end and an air outlet end. The air inlet end is provided outside the combustion space and the air outlet end extends inside the combustion space. The air outlet end is mounted with a hood and extends into an inner cavity of the hood. An inner sidewall of the hood is provided with a connecting portion connected with the hollow air column. An outer peripheral wall of the hood and an end surface of the hood away from the air outlet end are provided with air holes communicated with the inner cavity.

In some embodiments, the hood is a cylinder with an open bottom.

In some embodiments, the hollow air column includes a first air inlet segment facing the air inlet end, a first mixing segment, a second mixing segment and an air outlet segment. An end of the first mixing segment is connected with the first air inlet segment and a cross-sectional area of the first mixing segment gradually decreases along an air inlet direction. The second mixing segment is connected with an end of the first mixing segment away from the first air inlet segment and a cross-sectional area of the second mixing segment gradually increases along the air inlet direction. The air outlet segment facing the air outlet end is connected with an end of the second mixing segment away from the first mixing segment.

In some embodiments, the hollow air column further includes a second air inlet segment provided at the air inlet end. The second air inlet segment is connected with an end of the first air inlet segment away from the first mixing segment. A cross-sectional area of the second air inlet segment gradually decreases along the air inlet direction.

In some embodiments, an edge of the through hole extends upwards to form an annular guiding protrusion. The hollow air column passes through the annular guiding protrusion to extend into the combustion space. An inner wall of the annular guiding protrusion is in abutment with an outer wall of the hollow air column.

In some embodiments, the cover and the chassis are respectively enclosed with the mounting bracket to form a top mounting groove and a bottom mounting groove. A top end of the strengthening net is provided with a first bending portion bent inward, and a bottom end of the strengthening net is provided with a second bending portion bent inward. The first bending portion is inserted into and meshed with the top mounting groove and the second bending portion is inserted into and meshed with the bottom mounting groove.

In some embodiments, the through hole is provided in a center of the chassis.

In some embodiments, the hollow air column is provided in a center of the combustion space.

The present disclosure further provides a warmer applied with an infrared burner aforementioned.

In the technical solutions of the present disclosure, the ceramic plate is provided on the mounting bracket. The ceramic plate is enclosed with the mounting bracket, the cover and the chassis to form a combustion space. A hollow air column is located in the center of the combustion space. After the hollow air column is filled with the fuel gas, the fuel gas may evenly disperse into the combustion space through the air holes on the hollow air column, such that the fuel gas may be evenly distributed in each air hole of the ceramic plate. Thus, the fuel gas can be evenly and fully burned in each air holes, which make the heat energy emitted by the infrared burner more even.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or in the related art, drawings used in the embodiments or in the related art will be briefly described below. Obviously, the drawings in the following description are only some embodiments of the present disclosure. It will be apparent to those skilled in the art that other figures can be obtained according to the structures shown in the drawings without creative work.

FIG. 1 is a schematic structural view of an infrared burner according to some embodiments of the present disclosure.

FIG. 2 is a schematic disassembled diagram of an infrared burner according to some embodiments of the present disclosure.

FIG. 3 is a schematic view of a partial structure of an infrared burner according to some embodiments of the present disclosure.

FIG. 4 is a schematic structural view of an internal structure of an infrared burner according to some embodiments of the present disclosure.

FIG. 5 is a bottom view of a partial structure of an infrared burner according to some embodiments of the present disclosure.

FIG. 6 is a schematic structural view of a hollow air column of an infrared burner according to some embodiments of the present disclosure.

FIG. 7 is a schematic cross-sectional view of a hollow air column of an infrared burner according to some embodiments of the present disclosure.

FIG. 8 is a schematic structural view of a mounting bracket of an infrared burner according to some embodiments of the present disclosure.

The realization of the objective, functional characteristics, and advantages of the present disclosure are further described with reference to the accompanying drawings.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The technical solutions of embodiments of the present disclosure will be clearly and completely described with reference to the drawings of the present disclosure. Obviously, the described embodiments are only some rather than all of the embodiments of the present disclosure. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skilled in the art without creative efforts shall fall within the scope of the present disclosure.

It should be noted that all directional indicators (such as up, down, left, right, front, rear, etc.) in the embodiments of the present disclosure are only used to explain the relative positional relationship, movement situation, etc. between components in a specific attitude (as shown in the drawings). If the specific attitude changes, the directional indication also changes accordingly.

In addition, the descriptions related to “first”, “second” and the like in the present disclosure are merely for descriptive purposes, and should not be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the feature defined by “first” and “second” may explicitly or implicitly include at least one such feature. Besides, the meaning of “and/or” in the full text includes three parallel solutions. For example, “A and/or B” includes only A, or only B, or both A and B. The various embodiments can be combined with each other, but the combination must be based on what can be achieved by those of ordinary skill in the art. When the combination of the embodiments is contradictory or cannot be achieved, it should be considered that such a combination does not exist, or is not within the scope of the present disclosure.

In the present disclosure, unless otherwise specifically specified and limited, the terms “connected”, “fixed”, etc. should be understood in a broad sense, for example, “fixed” can be a fixed connection, a detachable connection, or be integrated as a whole; “connected” can be a mechanical connection or an electrical connection; can be directly connected, or indirectly connected through an intermediate medium, or can be the internal communication between two elements or the interaction relationship between two elements. For those of ordinary skilled in the art, the specific meaning of the above-mentioned terms in the present disclosure can be understood according to specific situations.

In addition, the technical solutions between the various embodiments of the present disclosure can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that such combination of the technical solutions does not exist and is not within the protection scope required by the present disclosure. It should be understood that the specific embodiments described herein are only used to explain the present disclosure, and are not intended to limit the present disclosure.

That all directional descriptions (such as up, down, left, right, front, rear, etc.) in the embodiments of the present disclosure are based on the orientation shown in FIG. 1 and are only used to explain the relative positional relationship between the parts in the specific attitude shown in FIG. 1. If the specific attitude changes, the directional indication also changes accordingly.

As shown in FIG. 1 and FIG. 2, the present disclosure provides an infrared burner 1. The infrared burner 1 includes a cover 11, a chassis 10, a mounting bracket 20, a ceramic plate 30, a hollow air column 40 and a strengthening net 50. The chassis 10 is defined with a through hole 13. A bottom of the mounting bracket 20 is mounted on the chassis 10 and a top of the mounting bracket 20 is mounted on the cover 11. The ceramic plate 30 is defined with air holes 41 and provided on the mounting bracket 20. The ceramic plate 30 is enclosed with the mounting bracket 20. The chassis 10 and the cover 11 to form a combustion space 12. The hollow air column 40 is defined with air holes 41 and passes through the through hole 13 to extend into the combustion space 12. A bottom of the strengthening net 50 is connected with the chassis 10 and a top of the strengthening net 50 is connected with the cover 11, and the strengthening net 50 is provided outside the ceramic plate 30.

The number of the mounting bracket 20 is plural. The mounting bracket 20 is provided around the outer circumference of the chassis 10. The ceramic plate 30 is connected between the adjacent mounting brackets 20. The cover 11 is installed above the mounting bracket 20, and the chassis 10 is installed below the mounting bracket 20. The through hole 13 is provided in a center of the chassis 10. Besides the hollow air column 40 is provided in a center of the combustion space 12.

In the technical solutions of the present disclosure, the ceramic plate 30 is provided on the mounting bracket 20. The ceramic plate 30 is enclosed with the mounting bracket 20, the cover 11 and the chassis 10 to form a combustion space 12. A hollow air column 40 is located in the center of the combustion space 12. After the hollow air column 40 is filled with the fuel gas, the fuel gas may evenly disperse into the combustion space 12 through the air holes 41 on the hollow air column 40, such that the fuel gas may be evenly distributed in each air hole 41 of the ceramic plate 30. Thus, the fuel gas can be evenly and fully burned in each air holes 41, which make the heat energy emitted by the infrared burner 1 more even.

In some embodiments, the chassis 10 is rectangular and the infrared burner includes four mounting brackets 20. The four mounting brackets 20 are provided at four corners of the chassis 10, respectively. When the chassis 10 is provided to be rectangular, the four mounting brackets 20 are enclosed with the ceramic plate 30 to form a quadrangular combustion space 12, which make the structure of the infrared burner 1 more stable, thereby improving the stability and safety of the infrared burner 1.

As shown in FIG. 3 and FIG. 8, in some embodiments, the mounting bracket 20 is formed by enclosing a first shell 21 with a second shell 22. The strengthening net 50 includes a horizontal net 51 and two vertical nets 52 respectively connected with two sides of the horizontal net 51. A first insertion gap 24 is formed on an edge of the first shell 21 and a second insertion gap 24 is formed on an edge of the second shell 22. In addition, the two vertical nets 52 are inserted into and meshed with the first insertion gap 24 and the second insertion gap 24 in a one-to-one correspondence. It is understandable that both the first shell 21 and the second shell 22 are L-shaped. The first shell 21 is enclosed with the second shell 22 to form a quadrangular mounting bracket 20. The strengthening net 50 is in the form of a concave, which includes a horizontal net 51 and two vertical nets 52 respectively connected to two edges of the horizontal net 51. The vertical nets 52 are inserted into the gaps 24 which are formed by enclosing the first shell 21 with the second shell 22 to fix the strengthening net 50, which improves the stability of the infrared burner 1.

As shown in FIG. 1 and FIG. 5, in some embodiments, the mounting bracket 20 further includes a first reinforcing plate 23 provided on a side of the second shell 22 away from the gaps 24. It is understood that the first shell 21 is located on a side away from the combustion space 12 and the second shell 22 is located on a side close to the combustion space 12. In the gaps 24 formed by enclosing the first shell 21 with the second shell 22, the strengthening net 50 is in abutment with the second shell 22. Thus, by providing a first reinforcing plate 23 on a side of the second shell 22 away from the gaps 24, the infrared burner 1 may be further fixed, which increase the strength of the infrared burner 1.

As shown in FIG. 1 and FIG. 2, in some embodiments, two second reinforcing plates are provided connected between any two adjacent mounting brackets 20. One of the second reinforcing plates 60 is mounted on the chassis 10 and the other one is mounted on the cover 11. A second reinforcing plate 60 is provided between two adjacent mounting brackets 20. One second reinforcing plate 60 is provided on the chassis 10 and the other one is provided on the cover 11. The second reinforcing plates 60 are used to reinforce the horizontal strength between the two mounting brackets 20, thereby preventing the mounting bracket 20 from being inclined or bent, and increasing the stability and safety of the infrared burner 1.

As shown in FIG. 1, FIG. 2 and FIG. 4, in some embodiments, both the chassis 10 and the cover 11 are provided with a limiting block 70. The limiting block 70 includes a horizontal section and a vertical section. The horizontal section is connected with the chassis 10 or the cover 11 and the vertical section is in abutment with a second reinforcing plate 60. It is understandable that the horizontal section of the limiting block 70 is installed on the chassis 10. The edge of the horizontal section is in abutment with the outer wall of the hollow air column 40, and the vertical section is in abutment with the second reinforcing plate 60 on the chassis 10. The limiting block 70 is used to fix the second reinforcing plate 60, which further improves the strength and stability of the mounting bracket 20.

As shown in FIG. 4, FIG. 6 and FIG. 7, in some embodiments, the hollow air column includes an air inlet end and an air outlet end. The air inlet end is provided outside the combustion space 12 and the air outlet end extends inside the combustion space 12. The air outlet end is mounted with a hood 42 and extends into an inner cavity of the hood 42. An inner sidewall of the hood 42 is provided with a connecting portion 421 connected with the hollow air column 40. An outer peripheral wall of the hood 42 and an end surface of the hood 42 away from the air outlet end are provided with air holes 41 communicated with the inner cavity.

In practice, the hollow air column 40 is in the shape of a straight tube with the air outlet end facing the cover 11. The gas has a fast circulation speed in the hollow air column 40 along the air inlet direction from the air inlet end to the air outlet end. If the gas rushes straight to the cover 11, it cannot be efficiently dispersed toward the surface of the ceramic plate 30 which is arranged circumferentially around the hollow air column 40, thereby seriously affecting the combustion and heating efficiency. In addition, the uniformity of the heat emitted from the outer periphery of the infrared burner 1 cannot be guaranteed. In order to solve the above technical problems, a hood 42 is mounted at the air outlet end of the hollow air column 40, and a plurality of air holes 41 are equally defined on the outer peripheral wall of the hood 42 and on an end surface of the hood 42 away from the air outlet end, which can effectively prevent most of the gas from going straight to the cover 11 under the effective blocking effect of the hood 42. Meanwhile, the gas can spread evenly from the air holes 41 on the surface of the hood 42 to the surface of the circumferentially arranged ceramic plate 30. Thus, the heat emitted from the infrared burner 1 is more uniform. The hood 42, the connecting portion 421 and the hollow air column 40 can be welded to each other.

In some embodiments, the hood 42 is a cylinder with an open bottom.

With a similar structure, the cylindrical hood 42 allows the gas to spread more evenly through the air holes 41 on the surface of the hood 42 to the circumferentially arranged ceramic plate 30, which can make the heat emitted by the infrared burner 1 more uniform.

As shown in FIG. 7, in some embodiments, the hollow air column 40 includes a first air inlet segment 43 facing the air inlet end, a first mixing segment 44, a second mixing segment 45 and an air outlet segment 46. An end of the first mixing segment 44 is connected with the first air inlet segment 43 and a cross-sectional area of the first mixing segment 44 gradually decreases along an air inlet direction. The second mixing segment 45 is connected with an end of the first mixing segment 44 away from the first air inlet segment 43 and a cross-sectional area of the second mixing segment 45 gradually increases along the air inlet direction. The air outlet segment 46 facing the air outlet end is connected with an end of the second mixing segment 45 away from the first mixing segment 44.

The first mixing segment 44 and the second mixing segment 45 are located in the middle of the hollow air column 40. Since the size of the cross-sectional area of the two mixing segments is changed along the inlet direction, the space of the first mixing segment 44 is gradually reduced and the space of the second mixing segment 45 is gradually increased. By adopting such structures, the flow rate of gas in the hollow air column 40 can be increased to enhance the oxygen and gas mixing ratio, which can make the gas fully contact with the air to achieve a complete combustion. In this way, the backfire problem in the hollow air column 40 can be effectively prevented.

In some embodiments, the hollow air column 40 further includes a second air inlet segment 47 provided at the air inlet end. The second air inlet segment 47 is connected with an end of the first air inlet segment 43 away from the first mixing segment 44. A cross-sectional area of the second air inlet segment 47 gradually decreases along the air inlet direction.

The portion of the hollow air column 40 outside the combustion space 12, in other words, is the air outlet end including the second air inlet segment 47, whose cross-sectional area is provided gradually decreasing along the air inlet direction. With such a structure, the air inlet end of the hollow air column 40 has a flared shape, which can facilitate gas entering, prevent gas diffusion losses, and improve gas utilization ratio.

As shown in FIG. 1, FIG. 2 and FIG. 4, in some embodiments, an edge of the through hole 13 extends upwards to form an annular guiding protrusion 14. The hollow air column 40 passes through the annular guiding protrusion 14 to extend into the combustion space 12. An inner wall of the annular guiding protrusion 14 is in abutment with an outer wall of the hollow air column 40. The edge of the through hole 13 is provided with an annular guiding protrusion 14 to guide the hollow air column 40 to extend into the center of the combustion space 12, to fix the hollow air column 40 and to prevent the hollow air column 40 from tilting, thereby fixing the hollow air column 40 in the center of the combustion space 12. It is conductive to spread the gas evenly and make the combustion of the infrared burner 1 more uniform.

In some embodiments, the cover 11 and the chassis 10 are respectively enclosed with the mounting bracket 20 to form a top mounting groove and a bottom mounting groove. A top end of the strengthening net 50 is provided with a first bending portion 53 bent inward, and a bottom end of the strengthening net 50 is provided with a second bending portion 54 bent inward. The first bending portion 53 is inserted into and meshed with the top mounting groove and the second bending portion 54 is inserted into and meshed with the bottom mounting groove. By inserting the first bending portion 53 into the top mounting groove and inserting the second bending portion 54 into the bottom mounting groove, the strengthening net 50 is further fixed, thereby avoiding the safety accidents caused by the falling of the strengthening net 50, which improve the stability and safety of the infrared burner 1.

The present disclosure further provides a warmer applied with the infrared burner 1 aforementioned. The specific structure of the infrared burner 1 refers to the above-mentioned embodiments. Since the warmer adopts all the technical solutions of the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

The above are only some embodiments of the present disclosure, and do not limit the scope of the present disclosure thereto. Under the concept of the present disclosure, equivalent structural transformations made according to the description and drawings of the present disclosure, or direct/indirect application in other related technical fields are included in the scope of the present disclosure.

Claims

1. An infrared burner, comprising: a cover;a chassis defined with a through hole;a mounting bracket, a bottom of the mounting bracket being mounted on the chassis and a top of the mounting bracket being mounted on the cover;a ceramic plate defined with air holes and provided on the mounting bracket, the ceramic plate being enclosed with the mounting bracket, the chassis and the cover to form a combustion space;a hollow air column defined with air holes; anda strengthening net, a bottom of the strengthening net being connected with the chassis and a top of the strengthening net being connected with the cover, the strengthening net being provided outside the ceramic plate,wherein the hollow air column passes through the through hole to extend into the combustion space.

2. The infrared burner of claim 1, wherein the chassis is rectangular, the infrared burner comprises four mounting brackets, and the four mounting brackets are provided at four corners of the chassis, respectively.

3. The infrared burner of claim 2, wherein: the mounting bracket is formed by enclosing a first shell with a second shell;the strengthening net comprises a horizontal net and two vertical nets respectively connected with two sides of the horizontal net;a first insertion gap is formed on an edge of the first shell, a second insertion gap is formed on an edge of the second shell; andthe two vertical nets are inserted into and meshed with the first insertion gap and the second insertion gap in a one-to-one correspondence.

4. The infrared burner of claim 3, wherein: both the first shell and the second shell are L-shaped; andthe first shell is located on a side away from the combustion space and the second shell is located on a side close to the combustion space.

5. The infrared burner of claim 3, wherein the strengthening net is in the form of a concave.

6. The infrared burner of claim 3, wherein the mounting bracket further comprises a first reinforcing plate provided on a side of the second shell away from the second insertion gap.

7. The infrared burner of claim 2, wherein: two second reinforcing plates are connected between any two adjacent mounting brackets; andone of the second reinforcing plates is mounted on the chassis and the other one is mounted on the cover.

8. The infrared burner of claim 7, wherein: both the chassis and the cover are provided with a limiting block;the limiting block comprises a horizontal section and a vertical section; andthe horizontal section is connected with the chassis or the cover and the vertical section is in abutment with a second reinforcing plate.

9. The infrared burner of claim 1, wherein: the hollow air column comprises: an air inlet end provided outside the combustion space; andan air outlet end extending inside the combustion space, the air outlet end being mounted with a hood and extending into an inner cavity of the hood,an inner sidewall of the hood is provided with a connecting portion connected with the hollow air column, andan outer peripheral wall of the hood and an end surface of the hood away from the air outlet end are provided with air holes communicated with the inner cavity.

10. The infrared burner of claim 9, wherein the hood is a cylinder with an open bottom.

11. The infrared burner of claim 10, wherein the hollow air column comprises: a first air inlet segment facing the air inlet end;a first mixing segment, an end of the first mixing segment being connected with the first air inlet segment and a cross-sectional area of the first mixing segment gradually decreasing along an air inlet direction;a second mixing segment connected with an end of the first mixing segment away from the first air inlet segment and a cross-sectional area of the second mixing segment gradually increasing along the air inlet direction; andan air outlet segment connected with an end of the second mixing segment away from the first mixing segment, the air outlet segment facing the air outlet end.

12. The infrared burner of claim 11, wherein: the hollow air column further comprises a second air inlet segment provided at the air inlet end,the second air inlet segment is connected with an end of the first air inlet segment away from the first mixing segment, anda cross-sectional area of the second air inlet segment gradually decreases along the air inlet direction.

13. The infrared burner of claim 1, wherein: an edge of the through hole extends upwards to form an annular guiding protrusion;the hollow air column passes through the annular guiding protrusion to extend into the combustion space; andan inner wall of the annular guiding protrusion is in abutment with an outer wall of the hollow air column.

14. The infrared burner of claim 1, wherein: the cover and the chassis are respectively enclosed with the mounting bracket to form a top mounting groove and a bottom mounting groove;a top end of the strengthening net is provided with a first bending portion bent inward, and a bottom end of the strengthening net is provided with a second bending portion bent inward; andthe first bending portion is inserted into and meshed with the top mounting groove and the second bending portion is inserted into and meshed with the bottom mounting groove.

15. The infrared burner of claim 1, wherein the through hole is provided in a center of the chassis.

16. The infrared burner of claim 1, wherein the hollow air column is provided in a center of the combustion space.

17. A warmer, wherein the warmer is applied with the infrared burner of claim 1.