A waterproof switch for window lifting and automobile

Abstract

The utility model relates to the technical field of automobile parts discloses a waterproof switch of car window lifting and car. The waterproof switch of car window lifting among them includes: upper casing, lower casing is connected with upper casing and both form the accommodation space, and the top edge of lower casing is equipped with mounting flange, operating button, circuit board is located in the accommodation space, conductive rubber plate is located between upper casing and circuit board, the outer edge of conductive rubber plate extends downward and forms sealed edge covering structure, and sealed edge covering structure is wrapped in the outside of mounting flang and is connected with mounting flange. The utility model discloses a sealed edge covering structure that extends downward is arranged to the outer edge of conductive rubber plate, makes it tightly wrap and connect in the mounting flange of lower casing top, forms a round inside physical barrier, can avoid the water from the periphery of conductive rubber plate and seep into the space of circuit board, thereby avoids the direct contact of water and circuit board and its element, can significantly improve the sealing property and reliability of car window lifting switch under the rain or splashing water environment.

Description

Technical Field

[0001] This utility model relates to the field of automotive component technology, specifically to a waterproof window lift switch and an automobile. Background Technology

[0002] As a core component controlling vehicle windows, the reliability of automotive window switches directly affects the comfort and safety of the entire vehicle. Currently, mainstream automotive window switches typically include an upper housing, a lower housing, a conductive rubber plate, and a PCB (circuit board). The conductive rubber plate is located above the PCB board. When the user presses the operating button, the conductive contacts on the conductive rubber plate make contact with the circuitry on the PCB board, thereby establishing electrical continuity to control the motor.

[0003] However, when dealing with liquid intrusion, especially when the car door glass is not fully closed and encounters water spray or splashing, this type of switch is prone to liquid accumulation around the button and slow seepage into the switch interior due to the lack of a fast flow guiding structure on the surface of the upper housing.

[0004] Existing technology discloses a waterproof car window switch, which includes a housing, a window button inside the housing, and a hook groove with an upper opening on the lower side of the window button. A first drain outlet is provided on the side wall of the hook groove to drain accumulated water out of the housing, and the lower edge of the first drain outlet is lower than the upper edges of all side walls of the hook groove. This prior art solves the technical problem of water easily accumulating in the hook groove and overflowing into the housing, causing short circuits and damage to the circuit board, by providing a drain outlet on the hook groove. Furthermore, it solves the problem of water entering the housing through the gap between the window button and the housing, causing short circuits and damage to the circuit board, by using a water collection channel with a second drain outlet.

[0005] However, traditional conductive adhesive sheets only cover a localized operating area of ​​the PCB board, and their connection to the housing is typically a simple planar press, resulting in assembly gaps. In the event of heavy rain with windows open, even with the aforementioned first and second drainage outlets, water cannot be completely drained in time. The accumulated rainwater easily seeps in through the gaps between the conductive adhesive sheet and the housing, directly contacting the underlying PCB board and its delicate electronic components, leading to short circuits, oxidation and corrosion of metal contacts, and even permanent functional failure. Utility Model Content

[0006] In view of the problem in the prior art that water can easily seep into the circuit board through the joint gap between the conductive rubber plate and the housing, this utility model provides a waterproof window lift switch and automobile, which can prevent water from seeping into the space where the circuit board is located from the periphery of the conductive rubber plate.

[0007] In a first aspect, this utility model provides a waterproof window lift switch, comprising: an upper housing; a lower housing connected to the upper housing and forming an accommodating space therebetween, the top edge of the lower housing having a mounting flange; an operation button disposed on the upper housing; a circuit board disposed within the accommodating space; and a conductive adhesive plate disposed between the upper housing and the circuit board for conducting the circuit on the circuit board when the operation button is pressed; the outer edge of the conductive adhesive plate extends downward to form a sealing edge structure, the sealing edge structure wrapping around the mounting flange and connecting to the mounting flange.

[0008] The waterproof window regulator switch provided by this utility model has a downward-extending sealing edge structure on the outer edge of the conductive rubber plate, which tightly wraps around and connects to the mounting flange on the top of the lower housing, forming a physical barrier around the interior. This prevents water from seeping into the space where the circuit board is located from the periphery of the conductive rubber plate, thereby preventing water from directly contacting the circuit board and its components. This significantly improves the sealing performance and reliability of the window regulator switch in rain or splashing environments.

[0009] Preferably, the conductive adhesive sheet includes a base plate and a sealing wall disposed on the edge of the upper surface of the base plate. The sealing edge structure is connected to the top edge of the sealing wall, and a groove is formed between the two. The mounting flange engages with the groove. The sealing wall can increase the possibility of water flowing to the edge of the sealing edge structure, thereby further reducing the risk of water leakage. This connection method between the conductive adhesive sheet and the lower housing is relatively simple, easy to assemble, and relatively firm, avoiding loosening or misalignment of the sealing edge structure due to vehicle vibration.

[0010] Preferably, the conductive adhesive plate is provided with a plurality of drainage channels, which extend to the bottom end of the lower housing. Providing drainage channels on the conductive adhesive plate allows for timely drainage of accumulated water, preventing water buildup inside.

[0011] Preferably, the inlet edge of the drainage channel is provided with a guide slope. The guide slope can guide the water flow, allowing it to enter the drainage channel more smoothly and preventing it from stagnating near the inlet of the drainage channel.

[0012] Preferably, at least two drainage channels are located on opposite sides of the conductive rubber plate. The window regulator switch may tilt to one side due to installation errors or uneven vehicle posture. Providing drainage channels on opposite sides of the conductive rubber plate ensures that at least one drainage channel can drain water smoothly, preventing water from accumulating in the internal corners.

[0013] Preferably, the circuit board has a relief groove corresponding to the drainage channel. Circuit boards are generally square in shape. Without a relief groove, the effective board area needs to be reduced to ensure the drainage channel can flow downwards without affecting the circuit board. This would lead to a crowded component layout, potentially affecting circuit performance. By providing a relief groove on the circuit board, instead of recessing the entire edge inwards, most of the circuit board area can be preserved to meet the layout requirements of electronic components.

[0014] Preferably, the upper housing includes a circumferential sidewall portion and a mounting platform portion, with a mounting groove formed between the upper surface of the mounting platform portion and the circumferential sidewall portion; the circumferential sidewall portion is provided with multiple drainage holes, and the mounting groove communicates with the outside of the circumferential sidewall portion through the drainage holes; the operating buttons are mounted on the mounting platform. The mounting groove can accommodate the fingers of passengers, allowing them to accurately operate the buttons to control the raising and lowering of the vehicle window. The mounting groove is an area prone to water accumulation. Providing multiple drainage holes on the circumferential sidewall portion allows water accumulated in the mounting groove to drain, reducing water accumulation in the conductive rubber sheet and further reducing the risk of water leakage.

[0015] Preferably, a pressing part is provided on the inner wall of the circumferential sidewall portion, the pressing part being located above the sealing edge structure and abutting against the sealing edge structure; the outer circumferential surface of the sealing edge structure is fitted against the inner wall of the circumferential sidewall portion. After the upper and lower housings are assembled, the pressing part is pressed tightly onto the sealing edge, ensuring that the sealing edge always wraps around the outside of the mounting flange, improving the long-term effectiveness of the seal.

[0016] Preferably, the outer circumferential surface of the lower housing fits into the inner wall of the circumferential sidewall. This arrangement increases the difficulty for water to seep into the interior through the gap between the upper and lower housings. Furthermore, it increases the contact area between the upper and lower housings, making the entire switch structure more stable.

[0017] Secondly, this utility model also provides an automobile, which includes: a vehicle body; and the aforementioned waterproof window lift switch is installed on the vehicle body.

[0018] The beneficial effects of this utility model are as follows: By setting a downward-extending sealing edge structure on the outer edge of the conductive rubber sheet, it tightly wraps around and connects to the mounting flange on the top of the lower housing, forming a physical barrier around the interior. This prevents water from seeping into the space where the circuit board is located from the periphery of the conductive rubber sheet, thereby preventing water from directly contacting the circuit board and its components. In addition, by setting drainage channels and drainage holes, water on the conductive rubber sheet and water on the upper housing can be drained respectively, which can significantly improve the sealing performance and reliability of the window lift switch in rain or splashing environments. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a structural schematic diagram of a waterproof window lift switch according to one of the embodiments of the present utility model from one perspective; Figure 2 This is a structural schematic diagram of a waterproof window lift switch according to another perspective of an embodiment of the present utility model; Figure 3 This is a schematic diagram of the conductive adhesive sheet from one of the viewpoints. Figure 4 This is a schematic diagram of the conductive adhesive sheet from another perspective. Figure 5 This is a schematic diagram of the lower shell structure; Figure 6 This is a cross-sectional view of a waterproof window lift switch according to an embodiment of the present utility model; Figure 7 This is a schematic diagram of the circuit board structure.

[0021] Explanation of reference numerals in the attached figures: 1. Upper housing; 101. Circumferential side wall; 1011. Drainage hole; 1012. Guide hole; 1013. Snap-fit ​​hole; 102. Mounting platform; 103. Press-fit part; 2. Lower housing; 201. Mounting flange; 202. Positioning protrusion; 203. Snap-fit ​​protrusion; 3. Operation button; 4. Circuit board; 401. Clearance groove; 5. Conductive adhesive plate; 501. Sealing edge structure; 502. Base plate; 503. Sealing wall; 504. Snap-fit ​​groove; 505. Drainage channel; 5051. Guide slope; 6. Top rod. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] The following is combined Figures 1 to 7 The following describes embodiments of the present invention.

[0024] According to an embodiment of this utility model, on one hand, a waterproof switch for raising and lowering car windows is provided, combined with... Figures 1 to 6 As shown, it includes: an upper housing 1; a lower housing 2 connected to the upper housing 1 and forming an accommodating space, the top edge of the lower housing 2 having a mounting flange 201; an operation button 3 disposed on the upper housing 1; a circuit board 4 disposed within the accommodating space; a conductive adhesive plate 5 disposed between the upper housing 1 and the circuit board 4, used to conduct the circuit on the circuit board 4 when the operation button 3 is pressed; the outer edge of the conductive adhesive plate 5 extends downward to form a sealing edge structure 501, the sealing edge structure 501 wrapping around the outside of the mounting flange 201 and connecting to the mounting flange 201.

[0025] This embodiment provides a vehicle window lift waterproof switch. By setting a downward-extending sealing edge structure 501 on the outer edge of the conductive rubber plate 5, it tightly wraps around and connects to the mounting flange 201 on the top of the lower housing 2, forming a physical barrier around the interior. This can prevent water from seeping into the space where the circuit board 4 is located from the periphery of the conductive rubber plate 5, thereby preventing water from directly contacting the circuit board 4 and its components. This can significantly improve the sealing performance and reliability of the window lift switch in rain or splashing environments.

[0026] Furthermore, the conductive adhesive sheet 5 includes a base plate portion 502 and a sealing wall 503 disposed on the edge of the upper surface of the base plate portion 502. A sealing edge structure 501 is connected to the top edge of the sealing wall 503, and a groove 504 is formed between the two. The mounting flange 201 engages with the groove 504. The sealing wall 503 can increase the possibility of water flowing to the edge of the sealing edge structure 501, thereby further reducing the risk of water leakage. In this way, the connection between the conductive adhesive sheet 5 and the lower housing 2 is relatively simple, easy to assemble, and relatively firm, which can avoid the sealing edge structure 501 from loosening or misalignment due to vehicle vibration.

[0027] Furthermore, the conductive adhesive plate 5 is provided with several drainage channels 505, which extend to the bottom end of the lower housing 2. The drainage channels 505 on the conductive adhesive plate 5 allow for timely drainage of accumulated water, preventing water buildup inside.

[0028] Furthermore, the inlet edge of the drainage channel 505 is provided with a guide slope 5051. The guide slope 5051 can guide the water flow, allowing it to enter the drainage channel 505 more smoothly and avoiding stagnation near the inlet of the drainage channel 505.

[0029] Furthermore, two drainage channels 505 are located on opposite sides of the conductive rubber plate 5. The window regulator switch may tilt to one side due to installation errors or uneven vehicle posture. The presence of drainage channels 505 on opposite sides of the conductive rubber plate 5 ensures that at least one drainage channel 505 can drain water smoothly, preventing water accumulation in the internal corners.

[0030] Furthermore, combined Figures 1 to 7 As shown, circuit board 4 has a clearance groove 401 corresponding to the drainage channel 505. Circuit board 4 is generally square in shape. Without the clearance groove 401, the effective board area of ​​circuit board 4 needs to be reduced to ensure that the drainage channel 505 can pass downwards without affecting circuit board 4. This would lead to a crowded component layout, which may affect circuit performance. By providing a clearance groove 401 on circuit board 4, instead of recessing the entire edge inward, most of the area of ​​circuit board 4 can be preserved to meet the layout requirements of electronic components.

[0031] Furthermore, the upper housing 1 includes a circumferential sidewall portion 101 and a mounting platform portion 102. A mounting groove is formed between the upper surface of the mounting platform portion 102 and the circumferential sidewall portion 101. The circumferential sidewall portion 101 is provided with multiple drainage holes 1011, and the mounting groove is connected to the outside of the circumferential sidewall portion 101 through the drainage holes 1011. An operation button 3 is mounted on the mounting platform, and the operation button 3 is rotatably connected to the circumferential sidewall portion 101. The mounting groove can accommodate the fingers of passengers, allowing them to accurately operate the button 3 to control the raising and lowering of the window glass. The mounting groove is an area prone to water accumulation. Providing multiple drainage holes 1011 on the circumferential sidewall portion 101 can drain water accumulated in the mounting groove, reducing water accumulation in the conductive adhesive sheet 5 and further reducing the risk of water seepage.

[0032] Furthermore, it also includes multiple push rods 6, all of which are slidably connected to the upper housing 1. Two push rods 6 are arranged below each operation button 3, located on either side of the rotation center line of the operation button 3. When the operation button 3 is pressed, the button does not sink vertically but rotates slightly. The pressing side moves downwards, pressing the push rod 6 on that side, driving the push rod 6 to slide and move towards the circuit board 4. The end of the push rod 6 then presses against the corresponding elastic contact dome on the conductive rubber plate 5, causing it to collapse and connect with the contact circuit on the circuit board 4, thereby triggering the window operation command.

[0033] Furthermore, a pressing part 103 is provided on the inner wall of the circumferential sidewall portion 101. The pressing part 103 is located above the sealing edge structure 501 and abuts against the sealing edge structure 501; the outer circumferential surface of the sealing edge structure 501 fits against the inner wall of the circumferential sidewall portion 101. After the upper housing 1 and the lower housing 2 are assembled, the pressing part 103 is pressed tightly onto the sealing edge, which can ensure that the sealing edge is always wrapped around the outside of the mounting flange 201, improving the long-term effectiveness of the seal.

[0034] Furthermore, the outer circumferential surface of the lower housing 2 is fitted to the inner wall of the circumferential side wall portion 101. This arrangement increases the difficulty for water to seep into the interior through the gap between the upper housing 1 and the lower housing 2. It also increases the contact area between the upper housing 1 and the lower housing 2, making the entire switch structure more stable.

[0035] Furthermore, the outer periphery of the lower housing 2 is provided with multiple positioning protrusions 202 and multiple engaging protrusions 203. The circumferential sidewall 101 of the upper housing 1 is provided with multiple guide holes 1012 corresponding to the positioning protrusions 202 and multiple engaging holes 1013 corresponding to the engaging protrusions 203. The positioning protrusions 202 are slidably connected to the guide holes 1012, and the engaging protrusions 203 are engaged with the engaging holes 1013. This connection structure enables the upper housing 1 and the lower housing 2 to be assembled quickly and stably.

[0036] In another embodiment of this utility model, an automobile is also provided, comprising: a vehicle body; and a waterproof window lift switch of the aforementioned embodiment installed on the vehicle body.

[0037] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A waterproof switch for raising and lowering car windows, characterized in that, include: Upper shell (1); The lower housing (2) is connected to the upper housing (1) and the two form an accommodating space. The top edge of the lower housing (2) is provided with a mounting flange (201). Operation button (3) is provided on the upper housing (1); Circuit board (4) is disposed within the accommodating space; A conductive adhesive plate (5) is disposed between the upper housing (1) and the circuit board (4) for conducting the circuit on the circuit board (4) when the operation button (3) is pressed; the outer edge of the conductive adhesive plate (5) extends downward to form a sealing edge structure (501), the sealing edge structure (501) wraps around the outside of the mounting flange (201) and is connected to the mounting flange (201).

2. The waterproof window lift switch according to claim 1, characterized in that, The conductive adhesive plate (5) includes a substrate portion (502) and a sealing wall (503) disposed on the edge of the upper surface of the substrate portion (502). The sealing edge structure (501) is connected to the top edge of the sealing wall (503) and a groove (504) is formed between the two. The mounting flange (201) engages with the groove (504).

3. A waterproof window lift switch according to claim 2, characterized in that, The conductive adhesive plate (5) is provided with a plurality of drainage channels (505), which extend to the bottom end of the lower housing (2).

4. A waterproof window lift switch according to claim 3, characterized in that, The inlet edge of the drainage channel (505) is provided with a guide slope (5051).

5. A waterproof window lift switch according to claim 3, characterized in that, At least two of the drainage channels (505) are located on opposite sides of the conductive adhesive plate (5).

6. A waterproof window lift switch according to claim 3, characterized in that, The circuit board (4) is provided with a clearance groove (401) corresponding to the drainage channel (505).

7. A waterproof window lift switch according to claim 2, characterized in that, The upper housing (1) includes a circumferential sidewall portion (101) and a mounting platform portion (102). A mounting groove is formed between the upper surface of the mounting platform portion (102) and the circumferential sidewall portion (101). The circumferential sidewall portion (101) is provided with a plurality of drainage holes (1011). The mounting groove is connected to the outside of the circumferential sidewall portion (101) through the drainage holes (1011). The operation button (3) is mounted on the mounting platform.

8. A waterproof window lift switch according to claim 7, characterized in that, The inner wall of the circumferential sidewall (101) is provided with a pressing part (103), the pressing part (103) is located above the sealing edge structure (501) and abuts against the sealing edge structure (501); the outer peripheral surface of the sealing edge structure (501) is in contact with the inner wall of the circumferential sidewall (101).

9. A waterproof window lift switch according to claim 8, characterized in that, The outer peripheral surface of the lower housing (2) is in contact with the inner wall of the circumferential sidewall (101).

10. A car, characterized in that, include: Body; The vehicle body is equipped with a waterproof window lift switch as described in any one of claims 1 to 9.

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