Electronic device

Abstract

The invention discloses electronic equipment, the electronic equipment comprises a shell, a key module and a first circuit board, the shell is provided with key holes, the first circuit board is arranged in the shell, the key module comprises keys, pressing columns and a second circuit board, at least parts of the keys, the pressing columns and the second circuit board are arranged in the key holes, and the second circuit board is arranged in the key holes. One end of the pressing column is connected with the key, the other end of the pressing column is a trigger end, and the trigger end is arranged opposite to the second circuit board; the key module further comprises a connecting electrode and a first sealing piece, the connecting electrode is located in the key hole and is in sealed connection with the shell through the first sealing piece, and the second circuit board is electrically connected with the first circuit board through the connecting electrode; and / or, the key hole comprises a first hole section and a second hole section, at least part of the key is located in the first hole section, the trigger end of the pressing column penetrates through the second hole section, a first limiting part is arranged on the inner wall of the first hole section, the key is provided with a second limiting part, and the first limiting part is matched with the second limiting part in a limiting mode.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic products, and specifically relates to an electronic device. Background Art

[0002] Electronic devices are usually equipped with buttons for adjusting volume or controlling power switches. The buttons are installed in button holes opened on the shell. To ensure the sealing of the electronic device, a groove is opened on the shell, and an injection-molded sealing structure is provided in the groove. After one end of the button passes through the button hole and the injection-molded sealing structure, it is arranged opposite to the circuit board in the electronic device.

[0003] Specifically, the circuit board includes an electrically connected first circuit board and a second circuit board, the first circuit board is arranged in the electronic device outside the groove, and a portion of the second circuit board enters the groove from the opening of the groove after passing through the outer wall of the groove, so that one end of the key is arranged opposite to a portion of the second circuit board, and at the same time, in order to limit the second circuit board and avoid affecting other components of the electronic device, a notch is required at the top opening of the groove, and a portion of the structure of the second circuit board is limited in the notch. However, due to the existence of the notch, it is easy for water vapor to enter the interior of the housing through the notch, and then it is easy to corrode the first circuit board, that is, this arrangement method is easy to affect the waterproof performance of the electronic device.

[0004] In summary, the electronic devices involved in the related art have the problem of poor waterproof performance. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide an electronic device that can solve the problem of poor waterproof performance of electronic devices involved in related technologies.

[0006] An embodiment of the present application provides an electronic device, including a housing, a key module and a first circuit board, wherein the housing is provided with a key hole, the first circuit board is arranged in the housing, the key module includes a key, a pressing column and a second circuit board, the key, the pressing column and at least part of the second circuit board are all arranged in the key hole, one end of the pressing column is connected to the key, the other end of the pressing column is a trigger end, and the trigger end is arranged opposite to the second circuit board; The key module further includes a connecting electrode and a first sealing member, wherein the connecting electrode is located in the key hole, and the connecting electrode is sealed and connected to the housing through the first sealing member, and the second circuit board is electrically connected to the first circuit board through the connecting electrode; And / or, the button hole includes a first hole segment and a second hole segment, at least a portion of the button is located in the first hole segment, the trigger end of the pressing column passes through the second hole segment, the inner wall of the first hole segment is provided with a first limiting portion, and the button is provided with a second limiting portion, and the first limiting portion and the second limiting portion can cooperate in limiting the movement direction of the button.

[0007] In the embodiment of the present application, since the second circuit board is electrically connected to the first circuit board through the connecting electrode, and the second circuit board and the connecting electrode are both located in the key hole, and at the same time, the connecting electrode is sealed and connected to the shell through the first sealing member, this makes it difficult for water vapor to enter the interior of the shell through the key hole, and thus it is not easy to corrode the first circuit board in the shell. At the same time, there is no need to open a notch on the shell to electrically connect the second circuit board to the first circuit board. It can be seen that this arrangement can improve the waterproof performance of the electronic device; and / or, since the first limit portion provided on the inner wall of the first hole segment and the second limit portion provided on the key can be limited in the moving direction of the key, this makes it difficult for the key to fall off from the key hole. At the same time, since the first hole segment is not connected to the interior of the shell, water vapor entering through the first hole segment is not easy to enter the interior of the shell, and thus it is not easy to corrode the first circuit board in the shell. It can be seen that this arrangement can also improve the waterproof performance of the electronic device to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figures 1 to 5 A schematic diagram of the structure of the housing and the first key module disclosed in the embodiment of the present application; Figures 6 to 9 This is a schematic diagram of the structure of the housing and the second key module disclosed in the embodiment of the present application.

[0009] Description of reference numerals: 100-housing, 110-button hole, 111-first hole section, 112-second hole section, 113-first limiting portion, 120-battery compartment; 200-first circuit board; 310-button, 312-fourth limiting part, 320-pressing column, 321-trigger end, 322-groove, 330-second circuit board, 340-connecting electrode, 350-first sealing member, 360-fixing bracket, 361-third limiting part, 370-second sealing member; 410 - a first spring piece, 420 - a second spring piece, 430 - a third spring piece. DETAILED DESCRIPTION

[0010] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0011] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0012] The electronic device disclosed in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0013] Please refer to Figure 1-Figure 9 The present application discloses an electronic device, which includes a housing 100 , a key module and a first circuit board 200 .

[0014] The shell 100 is a basic component of the electronic device, which can provide an installation basis for other components of the electronic device. At the same time, the shell 100, as a peripheral component of the electronic device, can protect other components in the electronic device and enhance the structural strength of the electronic device. The first circuit board 200 can be specifically arranged in the shell 100 so that the shell 100 can protect the first circuit board 200. The first circuit board 200 is used to ensure that the electronic device can work normally.

[0015] Please refer to Figure 5 , Figure 7 and Figure 8 The button module may include a button 310, a pressing column 320 and a second circuit board 330. The button 310 may be a side button on an electronic device, such as a volume control button or a power control button. The housing 100 is provided with a button hole 110. At least part of the button 310, the pressing column 320 and the second circuit board 330 are all arranged in the button hole 110. Specifically, in the axial direction of the button hole 110, the button 310, the pressing column 320 and the second circuit board 330 may be arranged in sequence.

[0016] One end of the pressing column 320 is connected to the button 310, and the other end of the pressing column 320 is a trigger end 321. The trigger end 321 is arranged opposite to the second circuit board 330. The pressing column 320 is used to transmit the pressing force applied by the user to the button 310. Specifically, the pressing column 320 is a movable component. The user applies the pressing force to the button 310, and the button 310 transmits the pressing force to the pressing column 320. Since the trigger end 321 of the pressing column 320 is arranged opposite to the second circuit board 330, during the movement of the pressing column 320, the trigger end 321 will contact the second circuit board 330, thereby triggering the micro switch on the second circuit board 330. The second circuit board 330 will convert the pressure into an electrical signal and transmit it to the first circuit board 200, thereby achieving the corresponding purpose, such as adjusting the volume or controlling the power on or off. Optionally, the second circuit board 330 can be a flexible circuit board, and the first circuit board 200 can be a rigid circuit board.

[0017] Please refer to Figures 1 to 3 In one embodiment, the button module may further include a connecting electrode 340 and a first sealing member 350. The connecting electrode 340 is located in the button hole 110. Specifically, in the axial direction of the button hole 110, the button 310, the pressing column 320, the second circuit board 330 and the connecting electrode 340 are arranged in sequence. The second circuit board 330 is electrically connected to the first circuit board 200 through the connecting electrode 340, that is, the connecting electrode 340 is used to transmit the above-mentioned electrical signal to the first circuit board 200. The number of the connecting electrodes 340 may be at least two, including a positive connecting electrode and a negative connecting electrode arranged at intervals.

[0018] The connecting electrode 340 can be sealed and connected to the shell 100 through the first seal 350, that is, the first seal 350 can be filled between the inner wall of the button hole 110 and the connecting electrode 340, so that the first seal 350 can seal the button hole 110, which can ensure the sealing of the shell 100, thereby protecting the electronic devices inside the shell 100, such as protecting the first circuit board 200.

[0019] Please refer to Figures 6 to 8 In another embodiment, the button hole 110 may include a first hole section 111 and a second hole section 112, the first hole section 111 and the second hole section 112 may not be connected, the first hole section 111 and the second hole section 112 may be spaced apart in the length direction of the housing 100, at least a portion of the button 310 may be located in the first hole section 111, and at least a portion of the pressing column 320 may be located in the second hole section 112, that is, at this time, the trigger end 321 of the pressing column 320 may pass through the second hole section 112 and be arranged opposite to the second circuit board 330. The inner wall of the first hole section 111 may be provided with a first limiting portion 113, and the button 310 may be provided with a second limiting portion, and the first limiting portion 113 and the second limiting portion may cooperate in limiting the movement direction of the button 310.

[0020] In this embodiment, the button 310 can be stably arranged in the button hole 110 through the limiting cooperation of the second limiting portion and the first limiting portion 113, that is, this arrangement can prevent the button 310 from falling off from the button hole 110. At the same time, since the first hole section 111 is not connected to the interior of the shell 100, this can also ensure the sealing of the shell 100, thereby protecting the electronic components inside the shell 100. Optionally, the first limiting portion can extend along the thickness direction of the electronic device, and the first limiting portion 113 can specifically be a connecting member, such as a pin, so that the button 310 can be detachably installed on the shell 100 through the first limiting portion 113, thereby making the overall structure simpler. Optionally, the structure of the second limiting portion can be combined with the fourth limiting portion 312 described later (please refer to Figure 5 ) can have the same structure or different structures.

[0021] It should be noted that the above two embodiments can be used alone or in combination. In addition, when the above two embodiments are combined, the sealing performance of the housing 100 can be further ensured, that is, the waterproof performance of the electronic device can be further improved.

[0022] In the embodiment of the present application, since the second circuit board 330 is electrically connected to the first circuit board 200 through the connecting electrode 340, and the second circuit board 330 and the connecting electrode 340 are both located in the key hole 110, and at the same time, the connecting electrode 340 is sealed and connected to the housing 100 through the first sealing member 350, it is not easy for water vapor to enter the interior of the housing 100 through the key hole 110, and it is not easy to corrode the first circuit board 200 in the housing 100. At the same time, the housing 100 does not need to have a notch, so that the second circuit board 330 can be electrically connected to the first circuit board 200. It can be seen that this arrangement can improve the waterproof performance of the electronic device. In addition, since the housing 100 does not need to have a notch, the waterproof surface of the entire housing 100 is complete, which can improve the rigidity of the housing 100 and ensure the structural strength of the entire electronic device.

[0023] And / or, since the first limit portion 113 provided on the inner wall of the first hole segment 111 and the second limit portion provided on the key 310 can cooperate with each other in the upper limit position in the moving direction of the key 310, the key 310 is not easily removed from the key hole 110. At the same time, since the first hole segment 111 is not connected to the interior of the shell 100, water vapor entering through the first hole segment 111 is not easy to enter the interior of the shell 100, and is not easy to corrode the first circuit board 200 in the shell 100. It can be seen that this arrangement can also improve the waterproof performance of the electronic device to a certain extent.

[0024] Optionally, refer to Figure 2 and Figure 3, the first seal 350 can be arranged around the connecting electrode 340 to ensure that the first seal 350 is filled between the inner wall of the key hole 110 and the connecting electrode 340, and the housing 100 and the connecting electrode 340 are integrally arranged through the first seal 350, that is, the housing 100, the connecting electrode 340 and the first seal 350 can be integrally formed. Optionally, the purpose of integral molding can be achieved by injection molding, that is, the material of the first seal 350 can be plastic material.

[0025] In this embodiment, since the housing 100, the connecting electrode 340 and the first sealing member 350 are integrally formed, the sealing performance of the housing 100 can be further improved. Of course, in other embodiments, the housing 100, the connecting electrode 340 and the first sealing member 350 can also be separately provided.

[0026] Optionally, refer to Figures 3 to 5 The electronic device may further include a first spring clip 410 and a second spring clip 420. One end of the connecting electrode 340 may be electrically connected to the second circuit board 330 through the first spring clip 410, and the other end of the connecting electrode 340 may be electrically connected to the first circuit board 200 through the second spring clip 420. That is, the first spring clip 410 may be arranged on one end of the connecting electrode 340 and one of the second circuit boards 330. During the specific assembly process, one end of the connecting electrode 340 and the other of the second circuit boards 330 contact with the first spring clip 410 and are electrically connected. The second spring clip 420 may be arranged on the other end of the connecting electrode 340 and one of the first circuit boards 200. During the specific assembly process, the other end of the connecting electrode 340 and the other of the first circuit boards 200 contact with the second spring clip 420 and are electrically connected.

[0027] In this embodiment, since the area of ​​the first spring 410 and the second spring 420 is usually large, the contact area between the first spring 410 and one end of the connecting electrode 340 and the second circuit board 330 is large, and the contact area between the second spring 420 and the other end of the connecting electrode 340 and the first circuit board 200 is also large. At the same time, since the first spring 410 and the second spring 420 both have a certain elasticity, there is a certain pre-tightening force between the second circuit board 330 and the connecting electrode 340 and between the connecting electrode 340 and the first circuit board 200, which makes the electrical connection between the second circuit board 330, the connecting electrode 340 and the first circuit board 200 more stable, and thus the electrical signal can be stably transmitted. Of course, in other embodiments, the first circuit board 200 and the second circuit board 330 can both be protruded with a first electrical connection protrusion, the first electrical connection protrusion on the second circuit board 330 can be in contact with and electrically connected to one end of the connecting electrode 340, and the first electrical connection protrusion on the first circuit board 200 can be in contact with and electrically connected to the other end of the connecting electrode 340.

[0028] Optionally, refer to Fig. 9 In this embodiment, the electronic device may further include a third spring clip 430, and the first circuit board 200 and the second circuit board 330 may be electrically connected through the third spring clip 430, that is, the first circuit board 200 and the second circuit board 330 are directly electrically connected through the third spring clip 430, and the function of the third spring clip 430 is substantially the same as that of the first spring clip 410 and the second spring clip 420, that is, the contact area between the first circuit board 200 and the second circuit board 330 may be increased through the third spring clip 430, so that the electrical connection between the first circuit board 200 and the second circuit board 330 is more stable, and thus the electrical signal can be stably transmitted. Of course, in other embodiments, a second electrical connection protrusion may be protruded on one of the first circuit board 200 and the second circuit board 330, and the second electrical connection protrusion may contact and electrically connect with the other of the first circuit board 200 and the second circuit board 330.

[0029] Please refer to Figures 4 to 7 and Fig. 9 In order to improve the overall setting stability of the button module, the button module can also include a fixed bracket 360, which is connected to the shell 100, and the second circuit board 330 is arranged on the fixed bracket 360, that is, at least a part of the fixed bracket 360 can be arranged in the button hole 110. During the movement of the pressing column 320, the pressing column 320 will drive the second circuit board 330 to move slightly. At this time, the fixed bracket 360 can limit and protect the second circuit board 330 to ensure that the trigger end 321 of the pressing column 320 can stably contact the second circuit board 330 and trigger the micro switch on the second circuit board 330.

[0030] Optionally, in the axial direction of the button hole 110, the distance between the fixed bracket 360 and the button 310 can be smaller than the distance between the fixed bracket 360 and the first circuit board 200, that is, the fixed bracket 360 is away from the first circuit board 200 and is arranged close to the button 310, which makes the fixed bracket 360 closer to the outside of the shell 100, and thus makes the entire button module closer to the outside of the shell 100.

[0031] At this time, in the axial direction of the button hole 110, the width of the portion of the housing 100 between the fixing bracket 360 and the first circuit board 200 is relatively large, that is, the farther the fixing bracket 360 is from the first circuit board 200, the greater the width of this portion of the housing 100. It can be seen that this increases the waterproof width of the inner side of the housing 100, and the waterproof width can be greater than or equal to 1.4 mm, thereby improving the waterproof performance of the electronic device, that is, this arrangement can ensure that the electronic device has IP68 waterproof performance. Of course, in other embodiments, the distance between the fixing bracket 360 and the button 310 can also be greater than or equal to the distance between the fixing bracket 360 and the first circuit board 200.

[0032] In a further embodiment, the fixing bracket 360 has a certain thickness dimension in the axial direction of the button hole 110. The embodiment of the present application reduces the thickness dimension of the fixing bracket 360, thereby reducing the space of the housing 100 occupied by the fixing bracket 360, thereby further increasing the width of the portion of the housing 100 located between the fixing bracket 360 and the first circuit board 200, that is, further improving the waterproof performance of the electronic device. Optionally, the thickness of the fixing bracket 360 can be between 1.0 mm and 1.2 mm.

[0033] Please refer to Figure 4 and Figure 5 In the case where the button module also includes the above-mentioned connecting electrode 340 and the first sealing member 350, in order to prevent the button 310 from falling off from the button hole 110, a third limiting portion 361 may be provided on the fixing bracket 360, and a fourth limiting portion 312 may be provided on the button 310. The third limiting portion 361 and the fourth limiting portion 312 may pass through the button hole 110 and cooperate with each other in the upper limit direction of the movement of the button 310, that is, the third limiting portion 361 may further limit the movement of the button 310 without affecting the user's normal pressing of the button 310.

[0034] Optionally, the key module may further include a third seal, which is arranged around the third limiting portion 361, and the third seal is respectively sealed with the third limiting portion 361 and the inner wall of the key hole 110, that is, the third seal can prevent water vapor from entering the housing 100 through the gap between the third limiting portion 361 and the key hole 110. Since the second circuit board 330 is arranged on the fixing bracket 360, this arrangement can prevent water vapor from corroding the second circuit board 330 and the first circuit board 200. Of course, in other embodiments, the key module may not include the third seal.

[0035] Optionally, refer to Figure 5 , Figure 7 and Figure 8The key module may further include a second seal 370, which is disposed around the pressing column 320 and is respectively sealed with the pressing column 320 and the inner wall of the key hole 110. The second seal 370 may prevent water vapor from entering the housing 100 through the gap between the pressing column 320 and the key hole 110, that is, the second seal 370 may prevent water vapor from corroding the second circuit board 330 and the first circuit board 200. Of course, in other embodiments, the key module may not include the second seal 370.

[0036] In addition, in this embodiment, since the material of the second sealing member 370 is usually soft and has a certain degree of elasticity, the second sealing member 370 will be slightly deformed when the user applies pressing pressure to the pressing column 320 through the button 310. When the user stops applying pressing pressure to the pressing column 320, the pressing column 320 can be reset under the action of the second sealing member 370. At the same time, the button 310 can be reset under the action of the pressing column 320, so that the user can press the button 310 next time.

[0037] Optionally, refer to Figure 5 , the button 310 and the pressing column 320 can be integrally arranged, and the material of the button 310 is usually metal, so the material of the pressing column 320 is also metal, that is, the button 310 and the pressing column 320 are both metal structures, and the second sealing member 370 can be separately arranged from the pressing column 320. In the specific assembly process, the operator can sleeve the second sealing member 370 on the pressing column 320, and simultaneously install the button 310, the pressing column 320 and the second sealing member 370 into the button hole 110 as a whole, which can improve the overall assembly efficiency. At the same time, since the button 310 and the pressing column 320 are integrally arranged, that is, there is no gap between the button 310 and the pressing column 320, this can ensure that the button 310 can always stably transmit the pressing force to the pressing column 320. Of course, in other embodiments, the button 310 and the pressing column 320 can also be separately arranged.

[0038] Optionally, according to the above embodiments, the second sealing member 370 and the pressing column 320 can be provided separately.

[0039] In another embodiment, please refer to Figure 7 and Figure 8The button 310 can be a metal structure, and the pressing column 320 can be a plastic structure, that is, the button 310 and the pressing column 320 can be separately arranged, and the second sealing member 370 and the pressing column 320 can be integrally arranged, that is, at this time, there is no gap between the second sealing member 370 and the pressing column 320, which makes it difficult for water vapor to enter the button hole 110 through the space between the second sealing member 370 and the pressing column 320, that is, the second sealing member 370 has a better sealing effect on the shell 100. At the same time, since the second sealing member 370 and the pressing column 320 are integrally arranged, this can reduce the assembly error between the second sealing member 370 and the pressing column 320 in the later stage.

[0040] Optionally, the second sealing member 370 and the pressing column 320 can be integrally arranged by injection molding. Specifically, a groove 322 can be opened on the pressing column 320, and the groove 322 can facilitate the molding of the second sealing member 370 on the pressing column 320. At the same time, the second sealing member 370 can be prevented from slightly moving on the pressing column 320, thereby avoiding affecting the waterproof performance.

[0041] Optionally, the material of the second seal 370 is usually softer, that is, the hardness of the second seal 370 is usually less than the hardness of the pressing column 320. The material of the second seal 370 can be soft silicone, and the material of the pressing column 320 can be hard plastic, such as PA (Poly Amide). In the process of forming the second seal 370, the outer periphery of the groove 322 is wrapped with a layer of protruding soft silicone by liquid injection molding, that is, the liquid soft silicone is arranged around the pressing column 320 to achieve the purpose of the second seal 370 and the pressing column 320 being arranged as one.

[0042] In this embodiment, the second sealing member 370 is interference fit with the inner wall of the button hole 110, that is, the size of the second sealing member 370 is larger than the size of the button hole 110, so that the second sealing member 370 can squeeze the inner wall of the button hole 110, thereby forming a better waterproof sealing performance, that is, ensuring that the electronic device has IP68 waterproof and airtight performance. Of course, in other embodiments, the second sealing member 370 and the inner wall of the button hole 110 can also be clearance fit.

[0043] Optionally, refer to Figure 1 The housing 100 may be provided with a battery compartment 120. The battery of the electronic device may be installed in the battery compartment 120. The battery is used to power the electronic devices of the entire electronic device. The battery compartment 120 is usually arranged near the bottom of the electronic device. In the axial direction of the key hole 110, the orthographic projection of the key module is located outside the orthographic projection of the battery compartment 120, that is, the key module as a whole is arranged near the top of the electronic device.

[0044] Since the key module is disposed as a whole close to the top of the electronic device, the wall thickness of the side wall surrounding the battery compartment 120 in the axial direction of the key hole 110 can be equal to the thickness of the side of the entire shell 100, that is, the side wall surrounding the battery compartment 120 has a complete wall thickness, which makes the structural strength here greater, thereby improving the safety performance of the battery. In addition, in this embodiment, the present application can appropriately reduce the thickness of the side of the shell 100 while ensuring the structural strength of the side wall of the battery compartment 120, that is, increase the space of the battery compartment 120. At this time, the battery compartment 120 can accommodate larger batteries, that is, this arrangement can increase the capacity of the battery, thereby increasing the endurance of the electronic device, thereby improving the competitiveness of the product. Of course, in other embodiments, in the axial direction of the key hole 110, the orthographic projection of the key module can also be located within the orthographic projection of the battery compartment 120.

[0045] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An electronic device, characterized in that: The invention comprises a housing, a key module and a first circuit board, wherein the housing is provided with a key hole, the first circuit board is arranged in the housing, the key module comprises a key, a pressing column and a second circuit board, the key, the pressing column and at least part of the second circuit board are all arranged in the key hole, one end of the pressing column is connected to the key, the other end of the pressing column is a trigger end, and the trigger end is arranged opposite to the second circuit board; The key module further includes a connecting electrode and a first sealing member, wherein the connecting electrode is located in the key hole, and the connecting electrode is sealed and connected to the housing through the first sealing member, and the second circuit board is electrically connected to the first circuit board through the connecting electrode; And / or, the button hole includes a first hole segment and a second hole segment, at least a portion of the button is located in the first hole segment, the trigger end of the pressing column passes through the second hole segment, the inner wall of the first hole segment is provided with a first limiting portion, and the button is provided with a second limiting portion, and the first limiting portion and the second limiting portion can cooperate in limiting the movement direction of the button.

2. The electronic device according to claim 1, characterized in that: The first sealing member is disposed around the connecting electrode, and the housing and the connecting electrode are integrally disposed through the first sealing member.

3. The electronic device according to claim 1, characterized in that: One end of the connecting electrode is electrically connected to the second circuit board through a first spring sheet, and the other end of the connecting electrode is electrically connected to the first circuit board through a second spring sheet.

4. The electronic device according to claim 1, characterized in that: The button module also includes a fixing bracket connected to the shell, and the second circuit board is arranged on the fixing bracket; in the axial direction of the button hole, the distance between the fixing bracket and the button is smaller than the distance between the fixing bracket and the first circuit board.

5. The electronic device according to claim 1, characterized in that: The key module further includes a fixing bracket, the fixing bracket is connected to the housing, and the second circuit board is arranged on the fixing bracket; In the case where the button module also includes the connecting electrode and the first sealing member, a third limiting portion is provided on the fixed bracket, and a fourth limiting portion is provided on the button. The third limiting portion and the fourth limiting portion can cooperate in limiting the movement direction of the button. The button module also includes a third sealing member, which is arranged around the third limiting portion, and the third sealing member is respectively sealed with the third limiting portion and the inner wall of the button hole.

6. The electronic device according to claim 1, characterized in that: The button module also includes a second sealing member, which is arranged around the pressing column and is respectively sealed with the pressing column and the inner wall of the button hole.

7. The electronic device according to claim 6, characterized in that: The button and the pressing column are integrally arranged, both the button and the pressing column are metal structures, and the second sealing member and the pressing column are separately arranged.

8. The electronic device according to claim 6, characterized in that: The button is a metal structure, the pressing column is a plastic structure, and the second sealing member is integrally arranged with the pressing column.

9. The electronic device according to claim 8, characterized in that: The hardness of the second sealing member is smaller than the hardness of the pressing column, and the second sealing member is interference-fitted with the inner wall of the button hole.

10. The electronic device according to claim 1, characterized in that: A battery compartment is provided in the shell, and in the axial direction of the button hole, the orthographic projection of the button module is located outside the orthographic projection of the battery compartment.

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