Capacitive switch with external touch and internal touch pressing functions

Abstract

The invention discloses an external touch and internal touch capacitive switch with a pressing function, a control panel is arranged in an accommodating cavity of a shell assembly, the control panel controls unlocking or locking of a vehicle door lock through a wire harness, the shell assembly is provided with a first side surface and a second side surface which are oppositely arranged, the first side surface is provided with an unlocking mechanism, and the second side surface is provided with a pressing mechanism. The second side face is provided with an electronic locking mechanism electrically connected with the control panel, the unlocking mechanism comprises a pressing unlocking module and an induction unlocking module, the pressing unlocking module comprises an unlocking button arranged on the first side face in a pressing mode, and the control panel is electrically connected with a microswitch. The induction unlocking module comprises a first capacitance induction piece arranged on the unlocking button. The system has the advantages of being high in integration level and compact in structure, using safety is improved through redundant design, and the misoperation probability is reduced through function partition.

Description

Technical Field

[0001] This invention relates to the field of vehicle door switch technology, and in particular to a capacitive switch with external and internal touch and pressing functions. Background Technology

[0002] With the rapid development of the automotive industry, especially the popularization of intelligent connected vehicles and electric vehicles, users have placed higher demands on the intelligence of automobiles. Capacitive touch-sensitive switches, as a type of intelligent operating device, are typically integrated into car door handles, enabling door unlocking or locking via touch, significantly improving user convenience and experience. In existing technologies, capacitive touch switches primarily focus on achieving a single touch function.

[0003] To address this issue, Chinese Patent CN113790000B proposes an improvement, disclosing an electronic feedback door handle. The handle body is fixed to the door, and a micro-switch assembly is located within the handle body and connected to the vehicle's central control system. The user can trigger the micro-switch assembly by pressing the handle body. The micro-switch assembly generates an on / off signal upon being pressed and sends it to the vehicle's central control system to control whether the door lock is open or closed. The micro-switch assembly includes a micro switch that generates an on / off signal upon pressing. The handle body includes a handle frame, which is fixed to the door. The handle frame has a micro-switch groove for accommodating the micro switch, and the frame contains... The handle includes a plate and a second soft rubber part. The micro-motion groove is recessed in the middle of the handle frame along the Y direction. The inner plate of the frame is located inside the micro-motion groove along the Y direction. The micro-motion groove wraps around the inner plate of the frame along the X and Z directions. The inner plate of the frame covers the micro-motion groove along the vehicle's Y direction. The second soft rubber part surrounds and wraps around the inner plate of the frame along the X and Z directions. The inner plate of the frame is elastically connected to the micro-motion groove through the second soft rubber part. The electronic feedback door handle also includes a handle cover. The handle cover is installed on the outside of the handle frame. The handle cover covers the micro-motion groove along the Y direction. A micro-motion holder is provided on the side of the handle cover facing the vehicle. The micro-motion switch is locked in the micro-motion holder.

[0004] However, the aforementioned electronic feedback door handle has the following drawbacks: it has a touch unlocking function, but its unlocking method is relatively simple and it does not have an electronic locking function. In addition, although the micro switch of the door handle is located inside the handle cover and has a certain dust and water resistance, the micro switch of this semi-concealed door handle is still in a semi-exposed state. After long-term use, dust and water stains will inevitably accumulate on the surface of the micro switch inside the handle cover. Its ability to cope with complex environments is still not ideal and needs to be improved. Summary of the Invention

[0005] The purpose of this invention is to provide a capacitive switch with external and internal touch functions and a pressing function, which has the effects of high integration, compact structure, redundant design to improve safety, and functional partitioning to reduce the probability of misoperation.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a capacitive switch with external and internal touch and pressing function, including a housing assembly, the housing assembly having a receiving cavity, a control board being provided in the receiving cavity, the control board controlling the unlocking or locking of a car door lock through a wiring harness, the housing assembly having a first side and a second side arranged opposite to each other, the first side having an unlocking mechanism, and the second side having an electronic locking mechanism electrically connected to the control board; The unlocking mechanism includes a press-to-unlock module and a sensor-to-unlock module. The press-to-unlock module includes a press-type unlock button disposed on the first side. A micro switch is electrically connected to the control board. The unlock button is pressed in conjunction with the corresponding micro switch. The inductive unlocking module includes a first capacitive sensing element disposed on the unlocking button. The first capacitive sensing element is electrically connected to the control board, and the first capacitive sensing element at least partially covers the outer surface of the unlocking button on the side away from the housing assembly.

[0007] By adopting the above technical solution, occupants can manually operate the unlocking mechanism located on the first side of the housing assembly to unlock the door lock. There are two unlocking methods: the first is by pressing the unlock button, which presses a microswitch, causing the control board to send a door unlocking signal to unlock the door lock; the second is by bringing one's hand close to or touching the first side of the unlock button, causing a change in the capacitance of the first capacitor sensing element and generating an unlocking electrical signal to the control board, which then sends a door unlocking signal to unlock the door lock. Additionally, when manual locking of the door is required, occupants can manually operate the electronic locking mechanism located on the second side of the housing assembly to electronically lock the door. By integrating the unlocking mechanism and the electronic locking mechanism onto the first and second sides of the housing assembly respectively, the door unlocking and locking functions are integrated on opposite sides of the housing assembly, resulting in high integration and a more compact structure. Furthermore, the arrangement of the unlocking and electronic locking mechanisms on opposite sides of the housing assembly clearly defines the functional zones, reducing the possibility of misoperation. In addition, the unlocking mechanism of this device includes a press-to-unlock module and a sensor-to-unlock module. In the event of an unexpected failure of the sensor-to-unlock module, the press-to-unlock module can be used for emergency unlocking. This redundant design improves the safety of the device during use, resulting in high integration, a compact structure, enhanced safety through redundancy, and reduced probability of misoperation through functional zoning.

[0008] A further provision of the present invention is that a conductive elastic element is provided between the unlock button and the housing assembly, one end of the conductive elastic element abuts against the unlock button or the first capacitive sensing sheet, the other end of the conductive elastic element abuts against the housing assembly or the control board, and both ends of the conductive elastic element are electrically connected to the first capacitive sensing sheet and the control board, respectively.

[0009] By adopting the above technical solution, the addition of the conductive elastic component can not only achieve automatic reset after the unlock button is pressed, but also serve as an electrical connection between the first capacitor sensing sheet and the control board. Unlike the method of setting up elastic and conductive components separately, the conductive elastic component greatly improves the structural compactness.

[0010] A further feature of the present invention is that the unlock button extends along the pressing direction and has a guide sliding portion, and the housing assembly has a guide limiting portion corresponding to the guide sliding portion, and the guide sliding portion and the guide limiting portion guide and cooperate to guide the unlock button to slide relative to the housing assembly in the pressing direction.

[0011] By adopting the above technical solution, the guiding and limiting effect between the guide sliding part and the guide limiting part can be used to improve the consistency of the pressing direction of the unlock button and ensure that pressing the unlock button can accurately unlock the car door lock.

[0012] A further feature of the present invention is that the housing assembly is provided with an anti-disengagement buckle, and the unlocking button is provided with an anti-disengagement groove corresponding to the anti-disengagement buckle. The anti-disengagement buckle and the anti-disengagement groove cooperate to prevent disengagement and constrain the sliding stroke of the unlocking button relative to the housing assembly.

[0013] By adopting the above technical solution, it is possible to effectively prevent the unlock button from falling off during the sliding process relative to the housing assembly.

[0014] A further configuration of the present invention is as follows: the first capacitive sensing sheet includes a sensing body and an electrical connection portion integrally connected to both ends of the sensing body. The electrical connection portion is integrally bent and connected to the sensing body. The unlock button is integrally injection molded onto the first capacitive sensing sheet by an injection molding process. The sensing body covers the side of the unlock button away from the housing assembly, and the electrical connection portions at both ends are attached to the side of the unlock button close to the housing assembly.

[0015] By adopting the above technical solution, the electrical connection part is used to electrically connect the control board, and the unlock button is integrally injection molded onto the first capacitive sensing sheet through an integral injection molding process. This makes the sensing body and the electrical connection part relatively distributed on both sides of the unlock button, which helps to ensure the relative positional accuracy between the first capacitive sensing sheet and the unlock button in each injection molded product, while avoiding the situation where the first capacitive sensing sheet and the unlock button shake.

[0016] A further feature of the present invention is that: an arc-shaped bend is formed on the side of the sensing body between the two electrical connection portions, the arc-shaped bend is fitted to the side of the unlock button, and the edge of the arc-shaped bend forms a snap that is fastened into the inside of the unlock button.

[0017] By adopting the above technical solution, the arc-shaped bend increases the capacitive sensing range of the sensing body, improves the accuracy of sensing, and facilitates the rapid unlocking of the car door lock. At the same time, the arc-shaped bend achieves stable engagement with the unlock button through the edge buckle.

[0018] A further feature of the present invention is that the electronic locking mechanism includes a second capacitive sensing element, which is electrically connected to the control board.

[0019] By adopting the above technical solution, when a person approaches or presses the second capacitor sensing sheet, the capacitance of the second capacitor sensing sheet changes and sends a locking electrical signal to the control board, thereby locking the door lock.

[0020] A further provision of the present invention is that the second side of the housing assembly is sealed with potting resin, and a buffer is provided on the side of the potting resin and the second capacitive sensing sheet away from the housing assembly.

[0021] By adopting the above technical solution, the second side of the housing assembly is sealed with potting resin, thereby sealing the control board in the accommodating cavity. This can effectively improve the dustproof and waterproof performance of the control board. At the same time, when the housing assembly is installed in the car door, the buffer can improve the shock absorption performance between the second side of the housing assembly and the car door, and also has a noise reduction effect.

[0022] A further feature of the present invention is that a mounting hole communicating with the accommodating cavity is provided on the first side of the housing assembly, and a breathing membrane is provided at the mounting hole.

[0023] By adopting the above technical solution, the heat generated by the control board can be discharged through the accommodating cavity and the mounting hole in sequence and then through the breathing membrane, and the breathing membrane can prevent external dust and moisture from entering the accommodating cavity.

[0024] A further provision of the present invention is that a soft rubber cover is provided on the first side of the housing assembly, and the unlocking mechanism is sealed and enclosed within the soft rubber cover.

[0025] By adopting the above technical solution, the soft rubber cover can seal and wrap the unlocking mechanism, improving its waterproof and dustproof performance.

[0026] In summary, the present invention has the following beneficial effects: A control board is installed within the housing assembly's accommodating cavity. The control board controls the unlocking or locking of the door locks via a wiring harness. The housing assembly has a first side and a second side arranged opposite each other. The first side has an unlocking mechanism, and the second side has an electronic locking mechanism electrically connected to the control board. The unlocking mechanism includes a press-to-unlock module and a sensor-to-unlock module. The press-to-unlock module includes a press-type unlock button located on the first side. A microswitch is electrically connected to the control board. The sensor-to-unlock module includes a first capacitive sensing element located on the unlock button. This device integrates the unlocking mechanism and the electronic locking mechanism onto the first side and second side of the housing assembly, respectively. On the second side, the door unlocking and locking functions are integrated on opposite sides of the housing assembly, resulting in high integration and a more compact structure. The unlocking mechanism and electronic locking mechanism arranged on opposite sides of the housing assembly clearly define the functional zones, reducing the possibility of misoperation. In addition, the unlocking mechanism of this device includes a press-to-unlock module and a sensor-to-unlock module. When the sensor-to-unlock module fails unexpectedly, the press-to-unlock module can be used for emergency unlocking. This redundant design improves the safety of the device during use. It has the effects of high integration, compact structure, redundant design to improve safety, and reduced probability of misoperation through functional zoning. Attached Figure Description

[0027] Figure 1 This is an overall structural diagram of the present invention.

[0028] Figure 2 This is a longitudinal sectional view of the present invention.

[0029] Figure 3 This is the present invention. Figure 2 A magnified view of a portion of region A in the middle.

[0030] Figure 4 This is an exploded view of the present invention.

[0031] Figure 5 This is a schematic diagram of the unlock button of the present invention being integrally injection molded onto the first capacitive sensing sheet.

[0032] Figure 6 This is an exploded view of the unlock button and the first capacitive sensing element of the present invention.

[0033] Figure 7 This is the present invention. Figure 6 Another perspective.

[0034] In the diagram: 1. Housing assembly; 10. Receiving cavity; 11. First side surface; 111. Mounting hole; 12. Second side surface; 13. Guide limiting part; 14. Anti-disengagement buckle; 2. Control board; 21. Micro switch; 3. Unlocking mechanism; 31. Unlocking button; 311. Guide sliding part; 312. Anti-disengagement groove; 32. First capacitive sensing element; 321. Sensing body; 3211. Arc-shaped bending part; 3212. Buckle; 322. Electrical connection part; 33. Cross-shaped pressing part; 4. Second capacitive sensing element; 5. Conductive elastic element; 6. Potting resin; 7. Breathing membrane; 8. Soft rubber cover; 9. Wiring harness; 91. Buffer element. Detailed Implementation

[0035] The invention will now be further described with reference to the accompanying drawings.

[0036] A capacitive switch with external and internal touch and pressing function, such as Figures 1-5 As shown, the device includes a housing assembly 1, which has a receiving cavity 10. A control board 2 is located within the receiving cavity 10. The control board 2 controls the unlocking or locking of the door lock via a wiring harness 9. The device is characterized by having a first side 11 and a second side 12 arranged opposite to each other. The first side 11 has an unlocking mechanism 3, and the second side 12 has an electronic locking mechanism electrically connected to the control board 2. The unlocking mechanism 3 includes a press-to-unlock module and a sensor-to-unlock module. The press-to-unlock module includes an unlock button 31 press-type disposed on the first side 11. A micro switch 21 is electrically connected to the control board 2. The unlock button 31 has a cross-shaped pressing portion 33 extending along the pressing direction, and the unlock button 31 engages with the micro switch 21 through the cross-shaped pressing portion 33. The sensor-to-unlock module includes a first capacitive sensing element 32 disposed on the unlock button 31. The first capacitive sensing element 32 is electrically connected to the control board 2, and at least partially covers the outer surface of the unlock button 31 on the side away from the housing assembly 1.

[0037] The housing assembly 1 can be installed on the outside or inside of the door. When the housing assembly 1 is installed on the outside of the door, the first side 11 of the housing assembly 1 is the side closer to the door, and the second side 12 of the housing assembly 1 is the side away from the door. When the housing assembly 1 is installed on the inside of the door, the first side 11 of the housing assembly 1 is the side closer to the door, i.e., the side closer to the interior of the vehicle, and the second side 12 of the housing assembly 1 is the side away from the door, i.e., the side closer to the window. In some other embodiments, the housing assembly 1 can be installed inside the door, such that the first side 11 of the housing assembly 1 is located on the outside of the door. The two sides 12 are located on the inside of the car door. In this embodiment, the press-to-unlock module and the induction-to-unlock module can independently unlock the car door lock through the control board 2. That is, the press-to-unlock module is working while the induction-to-unlock module is not working, or the induction-to-unlock module is working while the press-to-unlock module is not working. In some other embodiments, the press-to-unlock module and the induction-to-unlock module can also adopt a linkage unlocking mode. That is, when a person's hand approaches or touches the housing component 1, the induction-to-unlock module receives the action signal of the person's hand approaching or touching, and then presses the unlock button 31, thereby sending an unlock signal to the control board 2 and controlling the car door lock to unlock.

[0038] like Figures 3-5As shown, a conductive elastic element 5 is provided between the unlock button 31 and the housing assembly 1. One end of the conductive elastic element 5 abuts against the first capacitive sensing sheet 32, and the other end abuts against the control board 2. Both ends of the conductive elastic element 5 are electrically connected to the first capacitive sensing sheet 32 ​​and the control board 2, respectively. In other embodiments, one end of the conductive elastic element 5 abuts against the unlock button 31, and the other end abuts against the housing assembly 1. In this case, both ends of the conductive elastic element 5 can be electrically connected to the first capacitive sensing sheet 32 ​​and the control board 2 via conductive wires. The addition of the conductive elastic element 5 not only enables the unlock button 31 to automatically reset after being pressed, but also serves to electrically connect the first capacitive sensing sheet 32 ​​and the control board 2. Unlike methods that use separate elastic and conductive elements, the conductive elastic element 5 greatly improves the structural compactness. The unlock button 31 has a guide sliding portion 311 extending along the pressing direction. A guide limiting part 13 is provided corresponding to the guide sliding part 311. The guide sliding part 311 and the guide limiting part 13 are guided and cooperated to guide the unlock button 31 to slide relative to the housing assembly 1 in the pressing direction. By utilizing the guiding and limiting effect between the guide sliding part 311 and the guide limiting part 13, the consistency of the pressing direction of the unlock button 31 can be improved, ensuring that pressing the unlock button 31 can accurately unlock the door lock. The housing assembly 1 is provided with an anti-disengagement buckle 14. The unlock button 31 has an anti-disengagement groove 312 corresponding to the anti-disengagement buckle 14. The anti-disengagement buckle 14 and the anti-disengagement groove 312 are anti-disengaged to constrain the sliding stroke of the unlock button 31 relative to the housing assembly 1, which can effectively prevent the unlock button 31 from falling off during the sliding process relative to the housing assembly 1. In this embodiment, the conductive elastic element 5 can preferably be a metal spring. In other embodiments, conductive rubber or other polymer composite materials with conductive properties can also be used.

[0039] like Figures 3-4 and Figures 6-7As shown, the first capacitive sensing sheet 32 ​​includes a sensing body 321 and electrical connection portions 322 integrally connected to both ends of the sensing body 321. The electrical connection portions 322 are integrally bent and connected to the sensing body 321. The unlock button 31 is integrally injection molded onto the first capacitive sensing sheet 32 ​​by injection molding. The sensing body 321 covers the side of the unlock button 31 away from the housing assembly 1, and the electrical connection portions 322 at both ends are attached to the side of the unlock button 31 near the housing assembly 1. The electrical connection portions 322 are used to electrically connect to the control board 2. The unlock button 31 is integrally injection molded onto the first capacitive sensing sheet 32 ​​by injection molding, so that the sensing body 321 and the electrical connection portions 322 are relatively distributed on both sides of the unlock button 31, which is beneficial for protecting the sensor. To ensure the relative positional accuracy between the first capacitive sensing element 32 and the unlock button 31 in each injection-molded product, and to prevent the first capacitive sensing element 32 from wobbling relative to the unlock button 31; the side of the sensing body 321 has an arc-shaped bend 3211 formed between the two electrical connection parts 322, the arc-shaped bend 3211 fits against the side of the unlock button 31, and the edge of the arc-shaped bend 3211 forms a buckle 3212 that snaps into the inside of the unlock button 31. The arc-shaped bend 3211 increases the capacitive sensing range of the sensing body 321, improves the sensing accuracy, and is conducive to realizing the quick unlocking of the car door lock. At the same time, the arc-shaped bend 3211 achieves the engagement stability between itself and the unlock button 31 through the buckle 3212 on the edge.

[0040] like Figures 1-2 and Figure 4 As shown, the electronic locking mechanism includes a second capacitive sensing element 4, which is electrically connected to the control board 2. When a person approaches or presses the second capacitive sensing element 4, the capacitance of the second capacitive sensing element 4 changes and sends a locking electrical signal to the control board 2, thereby locking the door lock. The second side 12 of the housing assembly 1 is sealed with potting resin 6, and a buffer 91 is provided on the side of the potting resin 6 and the second capacitive sensing element 4 away from the housing assembly 1. By sealing the second side 12 of the housing assembly 1 with potting resin 6, the control board 2 is sealed in the accommodating cavity 10, which can effectively improve the dustproof and waterproof performance of the control board 2. At the same time, when the housing assembly 1 is installed in the door, the buffer 91 can improve the shock absorption performance between the second side 12 of the housing assembly 1 and the door, and also has a noise reduction effect.

[0041] like Figures 1-2 and Figure 4As shown, the first side 11 of the housing assembly 1 has a mounting hole 111 that communicates with the accommodating cavity 10. A breathing membrane 7 is provided at the mounting hole 111. The heat generated by the control board 2 can be discharged through the accommodating cavity 10 and the mounting hole 111 in sequence and then through the breathing membrane 7. The breathing membrane 7 can prevent external dust and moisture from entering the accommodating cavity 10. The first side 11 of the housing assembly 1 has a soft rubber cover 8. The unlocking mechanism 3 is sealed and wrapped in the soft rubber cover 8. The soft rubber cover 8 can seal and wrap the unlocking mechanism 3, thereby improving the waterproof and dustproof performance of the unlocking mechanism 3.

[0042] like Figures 1-4 As shown, the unlock button 31 includes a first end near the breathing membrane 7 and a second end away from the breathing membrane 7. The distance between the outer wall of the unlock button 31 and the housing assembly 1 gradually increases from the first end to the second end. The outer wall of the unlock button 31 is set as a slope, which can improve the tactile feel of the unlock button 31 near the door side of the housing assembly 1, so that the user can accurately place their hand on the first capacitive sensing sheet 32 ​​corresponding to the unlock button 31 to perform the unlocking operation or unlock by pressing.

[0043] The basic working principle of this invention is as follows: Passengers can manually operate the unlocking mechanism 3 located on the first side 11 of the housing assembly 1 to unlock the car door lock. There are two unlocking methods: the first method involves pressing the unlocking button 31, which presses the microswitch 21, causing the control board 2 to send a door unlocking signal to unlock the door lock. The second method involves bringing one's hand close to or touching the first side 11 of the unlocking button 31. At this time, the capacitance of the first capacitive sensing element 32 changes, generating an unlocking electrical signal to the control board 2, which then sends a door unlocking signal to unlock the door lock. Additionally, when manual locking of the car door is required, passengers can manually operate the electronic locking mechanism located on the second side 12 of the housing assembly 1 to electrically lock the door. The door locking mechanism integrates the unlocking mechanism 3 and the electronic locking mechanism on the first side 11 and the second side 12 of the housing assembly 1, respectively. This integrates the door unlocking and locking functions on opposite sides of the housing assembly 1, resulting in high integration and a more compact structure. The arrangement of the unlocking mechanism 3 and the electronic locking mechanism on opposite sides of the housing assembly 1 also clearly defines the functional areas, reducing the possibility of misoperation. In addition, the unlocking mechanism 3 of this device includes a press unlocking module and a sensor unlocking module. When the sensor unlocking module fails unexpectedly, the press unlocking module can be used for emergency unlocking. This redundant design improves the safety of the device during use. It has the effects of high integration, compact structure, redundant design to improve safety, and functional area division to reduce the probability of misoperation.

[0044] The above description is only a preferred embodiment of the present invention. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of this patent application are included in the scope of this patent application.

Claims

1. A capacitive switch with external and internal touch and pressing function, comprising a housing assembly (1), wherein the housing assembly (1) has a receiving cavity (10), and a control board (2) is provided in the receiving cavity (10), wherein the control board (2) controls the unlocking or locking of a car door lock through a wiring harness (9), characterized in that: The housing assembly (1) has a first side (11) and a second side (12) arranged opposite to each other. The first side (11) is provided with an unlocking mechanism (3), and the second side (12) is provided with an electronic locking mechanism electrically connected to the control board (2). The unlocking mechanism (3) includes a press-to-unlock module and a sensor-to-unlock module. The press-to-unlock module includes an unlock button (31) that is press-type disposed on the first side (11). A micro switch (21) is electrically connected to the control board (2). The unlock button (31) is press-fitted with the corresponding micro switch (21). The inductive unlocking module includes a first capacitive sensing element (32) disposed on the unlocking button (31), the first capacitive sensing element (32) being electrically connected to the control board (2), and the first capacitive sensing element (32) at least partially covering the outer surface of the unlocking button (31) on the side away from the housing assembly (1).

2. A capacitive switch with external and internal touch and pressing function according to claim 1, characterized in that: A conductive elastic element (5) is provided between the unlock button (31) and the housing assembly (1). One end of the conductive elastic element (5) abuts against the unlock button (31) or the first capacitive sensing sheet (32), and the other end of the conductive elastic element (5) abuts against the housing assembly (1) or the control board (2). Both ends of the conductive elastic element (5) are electrically connected to the first capacitive sensing sheet (32) and the control board (2), respectively.

3. A capacitive switch with external and internal touch and pressing function according to claim 2, characterized in that: The unlock button (31) extends along the pressing direction and has a guide sliding part (311). The housing assembly (1) is provided with a guide limiting part (13) corresponding to the guide sliding part (311). The guide sliding part (311) and the guide limiting part (13) guide and cooperate to guide the unlock button (31) relative to the housing assembly (1) in the pressing direction.

4. A capacitive switch with external and internal touch and pressing function according to claim 3, characterized in that: The housing assembly (1) is provided with an anti-disengagement buckle (14), and the unlocking button (31) is provided with an anti-disengagement groove (312) corresponding to the anti-disengagement buckle (14). The anti-disengagement buckle (14) and the anti-disengagement groove (312) cooperate to prevent disengagement and constrain the sliding stroke of the unlocking button (31) relative to the housing assembly (1).

5. A capacitive switch with external and internal touch and pressing function according to claim 1, characterized in that: The first capacitive sensing sheet (32) includes a sensing body (321) and an electrical connection portion (322) integrally connected to both ends of the sensing body (321). The electrical connection portion (322) is integrally bent and connected to the sensing body (321). The unlock button (31) is integrally injection molded onto the first capacitive sensing sheet (32) by injection molding process. The sensing body (321) covers the side of the unlock button (31) away from the housing assembly (1), and the electrical connection portions (322) at both ends are attached to the side of the unlock button (31) close to the housing assembly (1).

6. A capacitive switch with external and internal touch and pressing function according to claim 5, characterized in that: The side of the sensing body (321) has an arc-shaped bend (3211) between the two electrical connection portions (322) at both ends. The arc-shaped bend (3211) fits against the side of the unlock button (31), and the edge of the arc-shaped bend (3211) forms a buckle (3212) that snaps into the inside of the unlock button (31).

7. A capacitive switch with external and internal touch and pressing function according to claim 1, characterized in that: The electronic locking mechanism includes a second capacitive sensing element (4), which is electrically connected to the control board (2).

8. A capacitive switch with external and internal touch and pressing function according to claim 7, characterized in that: The second side (12) of the housing assembly (1) is sealed with potting resin (6), and a buffer (91) is provided on the side of the potting resin (6) and the second capacitive sensing sheet (4) away from the housing assembly (1).

9. A capacitive switch with external and internal touch and pressing function according to claim 1, characterized in that: The first side (11) of the housing assembly (1) is provided with a mounting hole (111) that communicates with the accommodating cavity (10), and a breathing membrane (7) is provided at the mounting hole (111).

10. A capacitive switch with external and internal touch and pressing function according to claim 1, characterized in that: The first side (11) of the housing assembly (1) is provided with a soft rubber cover (8), and the unlocking mechanism (3) is sealed and wrapped inside the soft rubber cover (8).

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