Patent Application
20230109888
The subject matter herein generally relates to manufacturing.
When assembling electronic or other equipment, a step of pressing two parts together is often required. One part will be provided with an opening having an air valve. The air in or between the two parts is compressed and must be discharged during the pressing process, to avoid deformation or damage to the parts due to the increase of internal air pressure. The air valve is usually hemispherical and consists of a plurality of mutually butted blade petals. The outer arc surface of the air valve is the outside of the part, and the inner arc surface is on the inside of the part.
In the current air valve, when the pressure difference between the outside and inside air pressures reaches a threshold, the inside air can suddenly rush away through the air valve, and the sudden change in air pressure can easily lead to the damage of the part carrying the air valve, or to components within the assembly.
Therefore, improvement is desired.
Implementations of the present disclosure will now be described, by way of embodiments, with reference to the attached figures.
It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. Additionally, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein can be practiced without these specific details. In other instances, methods, procedures, and components have not been described in detail so as not to obscure the related relevant feature being described. The drawings are not necessarily to scale and the proportions of certain parts may be exaggerated to better illustrate details and features. The description is not to be considered as limiting the scope of the embodiments described herein.
Several definitions that apply throughout this disclosure will now be presented.
The term “coupled” is defined as connected, whether directly or indirectly through intervening components, and is not necessarily limited to physical connections. The connection can be such that the objects are permanently connected or releasably connected. The term “comprising” means “including, but not necessarily limited to”; it specifically indicates open-ended inclusion or membership in a so-described combination, group, series, and the like.
For example, the functional assembly 10 can be a camera assembly applied in an electronic device, the first component 10 can be a collimator, the second component 20 can be a base, and the first component 10 is arranged on the second component 20 and bonded with the second component 20.
In one embodiment, the opening 21 is on the first component 10. In another embodiment, the opening 21 is on the second component 20. In another embodiment, the opening 21 is at the connection between the first component 10 and the second component 20, not limited in the present disclosure.
In the embodiment, the opening 21 is provided with an exhaust valve 20, the exhaust valve 20 is a one-way valve.
When an air pressure difference between the inside of the functional assembly 10 and the outside of the functional assembly 10 reaches a first threshold, the exhaust valve 20 is opened by air pressure in the functional assembly 10, and excess air pressure in the functional assembly 10 can be discharged from the functional assembly 10.
When the air pressure difference reaches a second threshold, the exhaust valve 20 is opened by the air pressure outside of the functional assembly 10, and the gas outside the functional assembly 10 can enter into the functional assembly 10 to relieve the difference, the first threshold is less than the second threshold.
Sudden changes of air pressure in the functional assembly 10 can lead to the damage of the functional assembly 10 and its components.
In order to solve the above problems, the embodiment of the present disclosure provides an exhaust valve, the present disclosure improves the structural strength of the exhaust valve without affecting the ventilation function of the exhaust valve. Sudden changes of air pressure in the functional assembly 10 are avoided and thus the probability of damage of the functional assembly 10 due to the sudden change of internal air pressure is reduced.
In the embodiment, the exhaust valve 20 is disposed on the opening 21, the exhaust valve 20 includes a plurality of blades 30. The blade 30 is triangular. In one exhaust valve 20, the blades 30 are circumferentially distributed and butted with each other, the side wall of one blade 30 abuts the side wall of another blade 30. The two ends of the blade 30 are a base end 31 and a nozzle end 32 respectively. The base end 31 connects to the functional assembly 10. A plurality of the nozzle ends 32 abut against each other, and the thickness of each blade 30 gradually increases from the nozzle end 32 to the base end 31.
The base ends 31 of the exhaust valve 20 are located on the same plane, the connection points of the nozzle ends 32 are on a raised and different plane, and the exhaust valve 20 is an exhaust valve protruding from the middle to one side.
It can be understood that the shape of the exhaust valve 20 can be, but is not limited to, conical or hemispherical.
It can be understood that the blade 30 is made of elastic material, which can be, but is not limited to, linear low density polyethylene (LLDPE).
For example, the exhaust valve 20 is hemispherical, and the outer arc surface of the exhaust valve 20 and the blade 30 is the outside of the functional assembly 10. The inner arc surface of the exhaust valve 20 and the blade 30 is the inside of the functional assembly 10, the inside of the exhaust valve 20 is the interior of the hollow part of the functional assembly 10.
It can be understood that the exhaust valve 20 forms a one-way valve, and its resistance to the air pressure outside the functional assembly 10 is greater than its resistance to the air pressure inside of the functional assembly 10. The air in the functional assembly 10 can be discharged from the functional assembly 10, reducing air pressure in the functional assembly 10 is easier than allowing the entry of a higher air pressure from outside of the functional assembly 10.
The thickness of the blade 30 gradually increases from the nozzle end 32 to the base end 31, so that the thickness of the nozzle end 32 is the smallest, and the thickness of the base end 31 is the largest. The base end 31 is the end with the greatest structural strength, the nozzle end 32 is the end with the lowest structural strength, the nozzle end 32 is most prone to deformation. The base end 31 is the most difficult to deform, even when the air pressure difference between the inner and outer sides of the functional assembly 10 reaches the threshold. Sudden changes of air pressure in the functional assembly 10 are thus relieved, and the probability of damage of the functional assembly 10 due to the sudden change of internal air pressure is reduced.
Referring to
Referring to
The thickness of the blade 30 decreases continuously from the base end 31 to the nozzle end 32. In one embodiment, the change in thickness of the blade 30 is continuous. In another embodiment, the change in thickness of the blade 30 is stepped or phased. The blade 30 can be divided into multiple parts in the direction of the base end 31 extending to the nozzle end 32. As between the blades 30, the thickness of parts of the same elevation is the same, and the thickness of parts on different elevations is different.
Referring to
Referring to
In one embodiment, the rib 35 is arranged on the outer surface of the exhaust valve 20. In another embodiment, the rib 35 is arranged on the inner surface of the exhaust valve 20, not being limited.
In one embodiment, the length of the rib 35 is equal to the shortest distance between the nozzle end 32 and the base end 31. In another embodiment, the length of the rib 35 is less than the shortest distance between the nozzle end 32 and the base end 31. The embodiments of the present disclosure do not limit the length of the rib 35.
In one embodiment, the thickness of the rib 35 varies with the thickness of the blade 30. The thickness of the rib 35 gradually decreases in the direction from the base end 31 to the nozzle end 32. In another embodiment, the thickness of the rib 35 is constant throughout its length. For example, the rib 35 and the blade 30 are integrally connected to the outer surface of the blade 30, and one end of the rib 35 is flat with the base end 31. The length of the rib 35 is less than the shortest distance between the base end 31 and the nozzle end 32, and the thickness of each part of the rib 35 is the same.
Referring to
It can be understood that the nozzle portion 34, the base portion 33, and the connecting portion 36 can be injection molded.
For example, the thickness of the nozzle portion 34 is 0.02 mm, the thickness of the connecting portion 36 is 0.06 mm, and the thickness of the base portion 33 is 0.1 mm.
Referring to
In this embodiment, the sum of the thicknesses of the first extending portion 37 and the second extending portion 38 is nearly equal to the thickness of the connecting portion 36.
The abutted disposition of the second extending portion 38 and the first extending portion 37 strengthens the connection strength between each blade 30, improves the structural strength of the connecting portion 36, and makes it more difficult for the connecting portion 36 to deform under a pressure difference.
When the air pressure difference between both sides of the functional assembly 10 reaches a threshold, the nozzle portion 34 deforms to form an air hole 39 for air to pass through. At this time, the size of the air hole 39 is small, avoiding the rapid change of air pressure by an outrush of air from the functional assembly 10.
In one embodiment, the thickness of the nozzle portion 34 is equal to the thickness of the first extending portion 37.
As shown in
It can be understood that the fixed connection form between the base body 40 and the base end 31 can be, but is not limited to, adhesive fixation and integrated fixation.
For example, the base body 40 is integrally fixed with the base end 31, and the base body 40 and the base end 31 are formed by injection molding of the same material.
It can be understood that the base body 40 is arranged at the opening 21, and the base body 40 can be bonded and fixed with the inner surface of the functional assembly 10 to form the opening 21.
The following describes the implementation principle of the exhaust valve 20.
When the difference between the higher air pressure inside functional assembly 10 and the air pressure outside the functional assembly 10 reaches the first threshold, the nozzle portion 34 turns outward and deforms to form the air hole 39, and air in the functional assembly 10 is released from the functional assembly 10.
When the difference between the higher air pressure inside functional assembly 10 and the air pressure outside the functional assembly 10 reaches a second threshold, and the second threshold is greater than the first threshold, the connecting portion 36, the first extending portion 37 and the second extending portion 38 are deformed and turn outward, the air hole 39 expands, and the air in the functional assembly 10 can be released from the functional assembly 10 more quickly.
Even though numerous characteristics and advantages of the present technology have been set forth in the foregoing description, together with details of the structure and function of the present disclosure, the disclosure is illustrative only, and changes may be made in the detail, especially in matters of shape, size, and arrangement of the parts within the principles of the present disclosure, up to and including the full extent established by the broad general meaning of the terms used in the claims. It will, therefore, be appreciated that the exemplary embodiments described above may be modified within the scope of the claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202111193829.4 | Oct 2021 | CN | national |
