Patent Grant
10396498
The present application relates to the technical field of electronic products, and more particularly relates to a power adapter.
The adapter body is a power supply conversion equipment for small portable electronic equipment and the electronic appliances, the adapter body, also known as external power supply, is often used in notebook computers, LCD monitors, mobile phones and other small electronic products. The adapter body is generally composed of shell, transformer, inductance, capacitance, control IC, PCB board and other components, and its working principle is converting the AC inputting into DC outputting, which is generally configured with a power cord with a plug when used, the adapter body is electrically connected to the host or external receptacle through the power cord. However, the connection is realized only through the combination of the shaft and the hole when the power cord plug and the socket of the adapter body are connected in the actual using process, the plug can be disengaged from the socket easily due to a collision onto the power cord, resulting in the power outrage of electronic products, which will not only affect the normal work of electronic products, but also damage the electronic products to some certain extent, resulting in a poor using effect.
The application adopts the below technical scheme: a power adapter, comprises an adapter body and a power cord, one end of said adapter body is provided with a socket, one end of said power cord is provided with a plug, and said plug is plugged in and connected to said socket; wherein said power adapter further comprises a snap-fitting cover, said snap-fitting cover comprises a snap-fitting portion and a fixing portion connected to said snap-fitting portion, said fixing portion is movably connected to said end provided with the socket of the adapter body, said snap-fitting portion is provided with a groove whose one side is open and has a shape adapted to the contour of said plug, and said groove is snap-fitted to the outer side of said plug.
Said plug can comprise a straight portion and a trapezoidal portion provided in the longitudinal direction, said trapezoidal portion is connected with said power cord, said groove comprises a straight groove segment and a trapezoidal groove segment provided in the longitudinal direction, said straight groove is snap-fitted to said straight portion, and said trapezoidal groove segment is snap-fitted to said trapezoidal portion.
Each of the opposite inside walls in the transverse direction of said straight groove segment can be provided with an arcuate stop recess, and the opposite outside walls in the transverse direction of said straight portion are limited to said two arcuate stop recess respectively.
Each of the opposite inside walls in the transverse direction of said straight groove segment can be provided with an arcuate stop recess, and the opposite outside walls in the transverse direction of said straight portion are limited to the two arcuate stop recesses respectively.
Connecting slots and connecting columns can be arranged between said fixing portion and the end provided with a socket of the adapter body, and said fixing portion is movably connected to the end of said adapter body through the fit connection between said connecting slots and said connecting columns.
Said connecting slots can be provided in said fixing portion, and said connecting columns are provided at the end of said adapter body; or said connecting slots are provided at the end of said adapter body, and said connecting columns are provided in said fixing portion. Said connecting slots can be arranged to extend from the bottom surface of said fixing portion toward the top surface of said fixing portion; or said connecting slots are arranged to extend from the bottom surface of said adapter body to the top surface of said adapter body.
Said connecting slots and said connecting columns can be both arranged in the vertical direction.
Both the number of said connecting slots and the number of said connecting columns can be respectively two, and the fitted two connecting slots and two connecting columns are respectively located on both sides of said socket.
Each said connecting slot can comprise a transverse slot segment and a longitudinal slot segment connected to said transverse slot segment, the each said connecting column comprises a transverse column segment and a longitudinal column segment connected to said transverse column segment, said transverse slot segment is fittingly connected with said transverse column segment, and said longitudinal slot segment is fittingly connected with said longitudinal column segment.
Said two longitudinal slot segments can be respectively arranged to extend in the opposite directions from the two end of said two transverse slot segments, and said two longitudinal column segments are respectively arranged to extend in the opposite directions from the two end of said two transverse column segments.
The end of said fixing portion can be provided with a longitudinal guiding slot extending from the top surface of said fixing portion to the bottom surface of said fixing portion, the end of said adapter body located above said socket is provided with a longitudinal guide rib corresponding to the longitudinal guiding slot for sliding fit with said longitudinal guiding slot.
The bottom of said longitudinal stop slot can be provided with a longitudinal stop step for limiting the vertical sliding distance of said longitudinal guide rib relative to said longitudinal guiding slot.
Said snap-fitting portion and said fixing portion can be integrally injection-molded with ABS plastics.
The side of said adapter body is provided with a connection block which can be provided with at least one fixing hole for passing through the fasteners to be fixedly connected to the external device.
The advantageous effect of the present application is as follows: the power adapter of the present application is newly provided with a snap-fitting cover for ensuring that the plug is not easily disengaged from the adapter body, and the fixing portion of the snap-fitting cover and the end of the adapter body are movably connected, it is possible to ensure that the adapter body is always connected to the snap-fitting cover, when the plug is required to be pulled out, an external force is applied to move the snap-fitting cover firstly, but the snap-fitting cover will not be disconnected from the adapter body, and a certain space will is formed in the end of the adapter body for inserting the plug into the socket of the adapter body; when the plug is required to be re-plugged into the socket, an external force is firstly applied to the adapter body and the snap-fitting cover will be moved, but the snap-fitting cover will not be disconnected from the adapter body, and a certain space will be formed in the end of the adapter body for inserting the plug into the socket of said adapter; when the plug has been inserted into the socket, the groove provided on the snap-fitting portion will be snap-fitted to the outer side of the plug, since the groove is shapely matched with the contour of the plug, the snap-fitting portion of the snap-fitting cover can be stably connected with the plug, i.e., the connection between the fixing portion of the snap-fitting cover and the adapter body will be completed. Thus, the snap-fitting cover is respectively connected to the plug and the adapter body through the snap-fitting portion and the fixing portion, retaining the plug and the adapter body together, the plug will not be disengaged from the socket at the end of the adapter body under the action of external forces, it is possible to ensure the connection between the electronic products using the power adapter of the present application and the power supply more stable and reliable, with a better using effect.
In order to make the technical solutions in the embodiments of the present application clearer, the accompanying drawings to be used in the embodiments and the description of the prior art will be briefly introduced below, it is apparent that the drawings in the following description are merely some embodiments of the present application and that other drawings may be obtained by those skilled in the field without departing from the inventive nature of the invention.
Among them, the drawings are marked as follows:
The embodiment of the present application is described in detail below, and examples of said embodiments are shown in the drawings, where the same or similar labels represent the same or similar components or components having the same or similar functions. The embodiments described in the reference drawings 1-8 are illustrative, which are intended to be explain the present application and cannot be construed as limiting the present application.
In the description of the present application, “length”, “width”, “upper”, “lower”, “front”, “back”, “left” and “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside” and other terms indicating the orientation or positional relationship are based on orientation or positional relationship shown in the drawings, only for the purpose of facilitating the description of the invention and simplifying the description, instead of indicating or implying that the indicated device or component must have a specific orientation and constructed and operated in a particular orientation, and therefore it cannot be construed as limiting the invention.
In addition, the terms “first” and “second” are for illustrative purposes only and should not be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature that defines “first” and “second” may expressly or implicitly include one or more of the features. In the description of the present application, “multiple” means two or more than two, unless otherwise particularly defined.
In the present application, “install”, “interconnect”, “connect”, “fix” and other terms should be understood in a broad sense, such as a fixed connection, a detachable connection, or an integrated connection; a mechanical connection or an electrical connection; or direct connection, indirect connection via the medium, or internal connections of the two elements or the interaction relationship of two elements. The specific meaning of the above terms in the present application could be understood by those ordinary skilled in the field according to specific circumstances.
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Particularly, the power adapter of the present application is newly provided with a snap-fitting cover 40 for ensuring that the plug 30 is not easily disengaged from the adapter body 10, and the fixing portion 42 of the snap-fitting cover 40 and the end of the adapter body 10 are movably connected, it is possible to ensure that the adapter body 10 is always connected to the snap-fitting cover 40, when the plug 30 is required to be pulled out, a force can be applied to move the snap-fitting cover 30 firstly, but the snap-fitting cover 40 will not be disconnected from the adapter body 10, and a certain space will is formed in the end of the adapter body 10 for inserting the plug into the socket 11 of the adapter body 10; when the plug 30 is required to be connected to the socket 11, firstly, the snap-fitting cover 40 will be moved relative to the adapter body 10, at this time, the snap-fitting cover 40 will not be disconnected from the adapter body 10, and a certain space will be formed in the end of the adapter body 10 for inserting the plug 30 into the socket 11 of said adapter, when the plug has been inserted into the socket 11, the groove 410 provided on the snap-fitting portion 41 will be snap-fitted to the outer side of the plug 30, since the groove 410 is shapely matched with the plug 30, the snap-fitting portion 41 of the snap-fitting cover 40 can be connected with the plug 30 stably upon engagement, that is, the connection between the fixing portion 42 of the snap-fitting cover 40 and the adapter body 10 will be realized. Thus, the snap-fitting cover 40 is respectively connected to the plug 30 and the adapter body 10 through the snap-fitting portion 41 and the fixing portion 42, retaining the plug 30 and the adapter body 10 together, the plug 30 will not be disengaged from the socket 11 provided at the end portion of the adapter body 10 under the action of the external forces, it is possible to ensure the connection between the electronic products using the power adapter of the present application and the power supply more stable and reliable, with a better using effect. In addition, when it is required to pull the plug 30 out of the socket 11, since the fixing portion 42 of the snap-fitting cover 40 is movably connected to the end of the adapter body 10, the external forces can be applied to move the fixing portion 42 of the snap-fitting cover 40 towards the longitudinal guide rib 12 without disengagement from the adapter body 10, and the snap-fitting portion 41 snap-fitted to the plug 30 is further disengaged from the plug 30, so that the plug 30 can be pulled out of the socket 11, making it easy to repair or replace the power cord 20.
The power adapter according to the present embodiment can be applied to notebook computer, LCD, or mobile phone, or other small-sized electronic products.
The power adapter according to the present embodiment can also be applied to linear actuators, electric sofas, electric chairs, massage chairs, medical beds and other transmission devices.
Among them, the plug 30 is preferably an AC plug or a DC plug, and correspondingly, the socket is preferably an AC socket plugged with the AC plug or a DC socket plugged with the DC plug.
Further, the movably connection between the fixing portion 42 and the end provided with the socket 11 of the adapter body 10 particularly means that the fixing portion 42 and the adapter body 10 can be moved relative to each other, such as sliding relative to each other, so that a certain space could be formed through sliding for plugging the plug 30 into the socket 11. For example, the connection between the fixing portion 42 and the adapter body 10 may be achieved by means of an external connector, or the connection between the fixing portion 42 and the adapter body 10 may be achieved by a component molding on the fixing portion 42 or the adapter body 10. The object is that, when the fixing portion 42 is connected to the adapter body 10, the fixing portion 42 retains the adapter body 10, and the connection of the snap-fitting portion 41 with plug 30 retains the plug 30, which will enable the snap-fitting cover 40 to retain both the adapter body 10 and the plug 3, so that the connection between the plug 30 and the adapter body 10 is stabilized and not easily disengaged, ensuring the stability and reliability of the electrical connection between electronic products with the source adapter assembly, that is, to avoid the phenomenon of the electronics damage caused the instantaneous power failure.
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Among them, the connecting slots 50 and the connecting columns 60 have the same cross-sectional shape and are in the form of a long bar.
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In summary, the connecting slot 50 and the connecting column 60 are arranged between the fixing portion 42 and the end of the adapter body 10, so as to achieve the movably connection between the fixing portion 42 and the adapter body 10 through the sliding fit between the connecting slot 50 and the connecting column 60.
Among then, the connecting slot 50 and the connecting column 60 have the same cross-sectional shape, preferably in the special-shaped structure, such that the fitted connecting slot 50 and the connecting columns 60 cannot be disengaged in a direction other than relative sliding, thus ensuring that the connecting slot 50 and the connecting columns 60 can be disconnected only in the relative sliding direction. And it is possible to ensure the connecting slot 50 and the connecting columns 60 are not disengaged from each other in the case of non-manual operation.
In the present embodiment, said connecting slot 50 extends from the bottom surface of said fixing portion 42 toward the top surface of said fixing portion 42; or said connecting slot 50 extends from the bottom surface of said adapter body 10 to the top surface of said adapter body 10. Particularly, that is, when the connecting slot 50 is located at the fixing portion 42, the upper end or lower end of the connecting slot 50 is provided with an opening, and the upper and lower ends are not provided with an opening structure at the same time, it is possible to ensure that the slide column 60 will not slide away directly along the top end to the bottom end of the fixing portion 42 or directly along the bottom end to the top end of the fixing portion 42 when the connecting column 60 slides into the connecting slot 50. Similarly, when the connecting slot 50 is located on the adapter body 10, the connecting slot 50 only has an upper or lower opening, and the upper and lower ends are not provided with an opening structure at the same time, it is possible to ensure that the slide column 60 will not slide away directly along the top end to the bottom end of the adapter body 10 or directly along the bottom end to the top end of the adapter body 10 when the connecting columns 60 slides into the connecting slot 50.
In the present embodiment, both said connecting slot 50 and said connecting column 60 are arranged in a vertical direction. Particularly, the vertical arrangement of the connecting slot 50 and the connecting columns 60 are favorable for assembling the connecting slot 50 and the connecting columns 60, the connecting slot 50 is aligned with the connecting columns 60 from the upper or lower direction in the process of assembly, and then the fit connection between the connecting slot 50 and the connecting columns 60 can be achieved by applying the upward or downward forces, thus the operation is convenient, efficient and practical.
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Certainly, in other embodiments, the two longitudinal slot segments 52 are respectively arranged to extend in opposite directions from the ends of the transverse slot segments 51, and the two longitudinal column segments 62 are respectively arranged to extend in opposite directions from the ends of the transverse column segments 61, in this structure, it is necessary to shorten the length of the longitudinal column segment 62 and the longitudinal slot segment 52, so as to prevent the longitudinal column segment 62 from interfering with the insertion of the plug 30 into the socket 11.
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In the present embodiment, said snap-fitting portion 41 and said fixing portion 42 are integrally injection-molded with ABS plastics. Particularly, ABS plastics are characterized by impact resistance, heat resistance, low temperature resistance, chemicals resistance and excellent electrical performance, as well as easy processing, stable product size, good surface gloss, the snap-fitting cover 40 molded and formed by ABS plastics has perfect structural performance and long service life.
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The foregoing is merely illustrative embodiments of the present application and is not intended to limit the invention. Any modifications, equivalent substitutions and improvements within the spirit and principles of the present application should be included within the protection range of the present application.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2017/079095 | 3/31/2017 | WO | 00 |
| Publishing Document | Publishing Date | Country | Kind |
|---|---|---|---|
| WO2018/176403 | 10/4/2018 | WO | A |
| Number | Name | Date | Kind |
|---|---|---|---|
| 4662697 | Moses | May 1987 | A |
| 5919055 | Hattori | Jul 1999 | A |
| 7804691 | Davis | Sep 2010 | B1 |
| 7837500 | Chen | Nov 2010 | B2 |
| Number | Date | Country |
|---|---|---|
| 2170587 | Jun 1994 | CN |
| 2838078 | Nov 2006 | CN |
| 200941490 | Aug 2007 | CN |
| 202308605 | Jul 2012 | CN |
| Entry |
|---|
| International Search Report dated Dec. 25, 2017, for corresponding International Application PCT/CN2017/079095, filed Mar. 31, 2017. |
| Number | Date | Country | |
|---|---|---|---|
| 20180366877 A1 | Dec 2018 | US |
