Key assembly and electronic equipment

By introducing magnetic parts and Hall sensors into the key assembly and utilizing a single opening design of the shell, the problem of poor waterproofness of the key assembly is solved, and better waterproof performance is achieved to prevent liquid from corroding the circuit board.

CN223462137UActive Publication Date: 2025-10-21深圳市星桐科技有限公司
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Patent Information

Application Number
CN202422983838.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-03
Publication Date
2025-10-21
Estimated Expiration
2034-12-03

AI Technical Summary

Technical Problem

Existing keypad components have poor waterproof properties, and liquid can easily flow into electronic devices through the openings, causing damage to the devices.

Method used

A key assembly is designed, including a shell, a slidable key, a magnetic part, and a Hall sensor. The shell has an opening at the top, and the key is slidably connected to the shell. The change in the distance between the magnetic part and the Hall sensor detects the key state. There is only one opening inside the shell to prevent liquid from corroding the circuit board.

Benefits of technology

It provides good waterproof performance. Liquid can only stay inside the shell or flow out, which does not affect the normal use of the equipment and prevents liquid from corroding the circuit board.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a key assembly and electronic equipment, and relates to the technical field of electronic equipment. Comprising a shell, the top of which is provided with an opening; the key is connected with the shell in a sliding manner and comprises a shifting part and a limiting part; wherein the shifting part at least partially penetrates through the opening and is exposed out of the shell; the limiting part is positioned in the shell and is used for limiting the sliding direction of the key; the magnetic part is arranged in the shell and is fixedly connected with the key; the Hall sensor is arranged outside the shell, and the position of the Hall sensor and the position of the shell are relatively fixed; in the sliding process of the key, the distance between the magnetic piece and the Hall sensor changes. According to the key assembly provided by the embodiment of the invention, the shell of the key assembly is only provided with one opening, so that relatively good waterproof performance can be provided.
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Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of electronic devices, and in particular, to a key assembly and an electronic device. BACKGROUND

[0002] Key assemblies are usually provided in electronic devices, for example, key assemblies for controlling volume, key assemblies for controlling power switches, and the like.

[0003] In related technologies, the waterproof performance of key assemblies is poor, and liquid may flow into the electronic device through the openings reserved in the key assemblies, causing damage to the electronic device. CONTENT OF THE UTILITY MODEL

[0004] To overcome the problems in related technologies, the present disclosure provides a key assembly and an electronic device.

[0005] According to a first aspect of an embodiment of the present disclosure, a key assembly is provided, comprising:

[0006] a housing, a top portion of which is provided with an opening;

[0007] a key, slidably connected to the housing, comprising a knob portion and a limiting portion; wherein the knob portion at least partially passes through the opening and is exposed outside the housing; the limiting portion is located inside the housing and is used to limit the sliding direction of the key;

[0008] a magnetic member, provided inside the housing and fixedly connected to the key;

[0009] a Hall sensor, provided outside the housing and fixed relative to the position of the housing;

[0010] During the sliding of the key, the distance between the magnetic member and the Hall sensor changes.

[0011] In some embodiments, a fixing groove is further provided on the key, and the fixing groove is used to fix the magnetic member.

[0012] In some embodiments, the size of the fixing groove is the same as the size of the magnetic member.

[0013] In some embodiments, the fixing groove is provided at the bottom of the limiting portion.

[0014] In some embodiments, the fixing groove is provided at the side of the limiting portion.

[0015] In some embodiments, the key assembly further comprises an elastic member.

[0016] The elastic member is arranged inside the shell along the slidable direction of the key, and a first end of the elastic member is in contact with the key, and a second end of the elastic member is in contact with a side wall inside the shell.

[0017] In some embodiments, the compression amount of the elastic member changes during the sliding of the key.

[0018] In some embodiments, there is a gap between the limiting portion and the shell in the slidable direction of the key.

[0019] In some embodiments, the length of the limiting portion in the slidable direction of the key is greater than the length of the opening in the slidable direction.

[0020] According to a second aspect of the embodiments of the present disclosure, an electronic device comprises the key assembly as described in the first aspect.

[0021] The technical solutions provided by the embodiments of the present disclosure can have the following beneficial effects:

[0022] The key assembly provided by the embodiments of the present disclosure comprises a shell, a key, a magnetic member, and a Hall sensor. The top of the shell is provided with an opening. The key is slidably connected with the shell and comprises a knob portion and a limiting portion. The knob portion at least partially penetrates through the opening and is exposed outside the shell. The limiting portion is located inside the shell and is used to limit the sliding direction of the key. The magnetic member is arranged inside the shell and is fixedly connected with the key. The Hall sensor is arranged outside the shell and is fixedly arranged opposite to the shell. During the sliding of the key, the distance between the magnetic member and the Hall sensor changes. In the key assembly provided by the embodiments of the present disclosure, the shell of the key assembly has only one opening, which can provide better waterproof performance. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A structural schematic diagram of a key assembly in the embodiments of the present disclosure is shown.

[0024] Figure 2 A structural schematic diagram of another key assembly in the embodiments of the present disclosure is shown.

[0025] Figure 3 A structural schematic diagram of another key assembly in the embodiments of the present disclosure is shown.

[0026] Figure 4 A structural schematic diagram of another key assembly in the embodiments of the present disclosure is shown.

[0027] REFERENCE SIGNS:

[0028] 100 - shell; 101 - opening; 200 - key; 201 - dialing part; 202 - limiting part; 203 - fixing groove; 300 - magnetic piece; 400 - Hall sensor; 500 - elastic piece. DETAILED DESCRIPTION

[0029] The exemplary embodiments will be described in detail herein below with reference to the drawings. In the following description, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments are not representative of all embodiments consistent with the present disclosure. Rather, they are merely examples of devices and methods consistent with some aspects of the present disclosure, as detailed in the appended claims.

[0030] In addition, the terms "first", "second", and the like used in the present disclosure are merely used to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

[0031] Figure 1 A structural schematic diagram of a key assembly in an embodiment of the present disclosure is shown, as shown in Figure 1 The key assembly can include a shell 100, a key 200, a magnetic piece 300, and a Hall sensor 400.

[0032] The shell 100 is provided with an opening 101 at the top.

[0033] The key 200 is slidably connected to the shell 100, including a dialing part 201 and a limiting part 202. The dialing part 201 at least partially passes through the opening 101 and is exposed outside the shell 100, so that the user can apply an external force through the dialing part 201 to control the sliding of the key 200. The limiting part 202 is located inside the shell 100, and is used to limit the sliding direction of the key 200.

[0034] The magnetic piece 300 is arranged inside the shell 100 and is fixedly connected to the key 200.

[0035] The Hall sensor 400 is arranged outside the shell 100 and is fixedly connected to the shell 100. During the sliding of the key 200, the distance between the magnetic piece 300 and the Hall sensor 400 changes.

[0036] In some embodiments, the triggering state of the key assembly can be characterized by the magnetic field size detected by the Hall sensor 400. For example, in the case that the magnetic field size detected by the Hall sensor 400 is greater than a preset threshold, it is determined that the key assembly is in the first triggering state, otherwise, it is determined that the key assembly is in the second triggering state. The magnetic field size detected by the Hall sensor 400 can change with the distance between the magnetic member 300 and the Hall sensor 400. In the case that there is no external magnetic field interference, when the magnetic member 300 is pushed away from the Hall sensor 400 by the key 200, the magnetic field size detected by the Hall sensor 400 will gradually decrease, and when the magnetic member 300 is pushed close to the Hall sensor 400 by the key 200, the magnetic field size detected by the Hall sensor 400 will gradually increase.

[0037] The scheme provided by the embodiments of the present disclosure has only one opening 101 in the shell 100, and the opening 101 faces the outside of the electronic device. Even if liquid flows into the shell 100 through the opening 101, the liquid can only stay inside the shell 100 or flow out again through the opening 101, and cannot further corrode the circuit board of the electronic device. And because the shell 100 does not have a conductive member inside, the presence of liquid inside the shell 100 will not affect the normal use of the key assembly or the electronic device, so the key assembly provided by the present application has good waterproof performance.

[0038] In some embodiments, the Hall sensor 400 can be fixed on the circuit board in the electronic device by welding, so that the control circuit in the circuit board can perceive the magnetic field size detected by the Hall sensor 400, thereby determining the triggering state of the key assembly. Because the circuit board is usually relatively fixed with the shell 100 of the key assembly, the Hall sensor 400 fixed on the circuit board can also have a relatively fixed positional relationship with the shell 100.

[0039] In some embodiments, the key 200 is also provided with a fixing groove 203, which is used to fix the magnetic member 300.

[0040] Exemplarily, the size of the fixing groove 203 is the same as that of the magnetic member 300. The magnetic member 300 can be covered in the fixing groove 203, thereby ensuring the stability of the magnetic member 300 and avoiding the protrusion of the magnetic member 300 from the key 200, which can cause jamming during the sliding process of the key 200.

[0041] Exemplarily, the fixing groove 203 can be arranged at the bottom of the limiting portion 202.

[0042] Exemplarily, referring to Figure 2 , the fixing groove 203 can also be arranged at the side of the limiting portion 202.

[0043] It can be understood that no matter where the fixing groove 203 for fixing the magnetic member 300 is arranged on the key 200, it should be ensured that the Hall sensor 400 can detect a large enough magnetic field for switching the trigger state of the key assembly when the key 200 slides to a certain limit position. Therefore, as shown in Figure 1 and Figure 2 the position of the Hall sensor 400 outside the shell 100 can be adjusted adaptively according to the position of the magnetic member 300.

[0044] As can be seen from the above examples, in the case that the Hall sensor 400 can be normally used for switching the trigger state of the key assembly, the position between the magnetic member 300 and the Hall sensor 400 is not limited in the embodiments of the present disclosure.

[0045] Please continue to refer to Figure 1 In some embodiments, there is a gap between the limiting portion 202 and the shell 100 in the slidable direction of the key 200. By reserving a gap between the limiting portion 202 and the shell 100 in a certain direction, the sliding direction of the key 200 can be controlled. That is, the key 200 cannot slide in the direction where the limiting portion 202 and the shell 100 have abutted.

[0046] Exemplarily, the sliding direction of the key 200 is limited not only by the relationship between the limiting portion 202 and the shell 100, but also by the relationship between the knob portion 201 and the opening 101. In the slidable direction of the key 200, there is also a gap between the opening 101 and the knob portion 201. The slidable distance of the key 200 depends on the minimum value of the gap size between the limiting portion 202 and the shell 100 and the gap size between the knob portion 201 and the opening 101 in the slidable direction of the key 200.

[0047] It can be understood that the knob portion 201 is a part of the key 200 for being manipulated by a user. The user can apply an external force to the key 200 in the slidable direction through the knob portion 201. At this time, the key 200 will drive the magnetic member 300 to move, so that the distance between the magnetic member 300 and the Hall sensor 400 changes, thereby switching the trigger state of the key assembly.

[0048] In some embodiments, the length of the limiting portion 202 in the slidable direction of the key 200 is greater than the length of the opening 101 in the slidable direction. In this way, the limiting portion 202 can be used not only to limit the slidable direction of the key 200, but also to prevent the key 200 from being separated from the opening 101 of the shell 100 during the sliding process.

[0049] Figure 3 A structure schematic diagram of another key assembly in the embodiments of the present disclosure is shown. Since Figure 3The key assembly shown solves the problem in the same way as the above Figure 1 The key assembly shown is similar, and the repeated parts will not be described again for brevity.

[0050] Compared with the key assembly shown Figure 1 Compared with the key assembly shown Figure 3 In the key assembly shown, the key assembly further comprises: an elastic member 500. The elastic member 500 is arranged inside the housing 100 along the slidable direction of the key 200, and the first end thereof is in contact with the key 200, and the second end thereof is in contact with the side wall inside the housing 100.

[0051] Exemplarily, the elastic member 500 can be a spring or a spring sheet, which can be compressed along the slidable direction of the key 200. The compression amount of the elastic member 500 will change in the process of sliding of the key 200.

[0052] The user applies an external force through the dialing part 201 to trigger the action of the key assembly, which is an action of increasing the compression amount of the elastic member 500. After the external force is removed, the key 200 can restore the initial state under the action of the elastic force of the elastic member 500, thereby ensuring that the key assembly can automatically reset after being triggered each time.

[0053] Exemplarily, the greater the compression amount of the elastic member 500, the farther the distance between the magnetic member 300 and the Hall sensor 400, and the smaller the magnetic field detected by the Hall sensor 400.

[0054] Exemplarily, please refer to Figure 4 The position of the Hall sensor 400 can also be adjusted, so that the greater the compression amount of the elastic member 500, the closer the distance between the magnetic member 300 and the Hall sensor 400, and the greater the magnetic field detected by the Hall sensor 400.

[0055] It can be understood that the difference between the above two examples is that, after the elastic member 500 is compressed by the external force, the key assembly is switched from the first trigger state to the second trigger state (the magnetic field detected by the Hall sensor 400 decreases), or from the second trigger state to the first trigger state (the magnetic field detected by the Hall sensor 400 increases).

[0056] That is, under the concept of the present disclosure, the key assembly can be made to enter the second trigger state after being dialled by the external force, or the key assembly can be made to enter the first trigger state after being dialled by the external force, which is not limited by the embodiments of the present disclosure.

[0057] Based on the same inventive concept, the present disclosure further provides an electronic device comprising the key assembly described above.

[0058] Exemplarily, the electronic device can be a smart phone, a tablet computer, a smart wearable device, etc., and the present disclosure is not limited thereto.

[0059] Since the principle of solving problems of the electronic device embodiment is similar to the above-mentioned electronic device embodiment, the implementation of the electronic device embodiment can refer to the implementation of the above-mentioned key assembly embodiment, and the repeated parts will not be described again.

[0060] The embodiments of the present disclosure are described in detail above in combination with the drawings, but the present disclosure is not limited to the specific details in the above-mentioned embodiments. Within the technical concept range of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all belong to the protection range of the present disclosure.

[0061] In addition, various different embodiments of the present disclosure can also be combined arbitrarily, as long as it does not deviate from the idea of the present disclosure, it should also be considered as disclosed by the present disclosure.

Claims

1. A key assembly, characterized by The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly.

2. The key assembly of claim 1, wherein, The application relates to a key assembly.

3. The key assembly of claim 2, wherein, The application relates to a key assembly.

4. A key assembly according to claim 2 or 3, wherein, The application relates to a key assembly.

5. The key assembly of claim 2 or 3, wherein, The application relates to a key assembly.

6. The key assembly of claim 1, wherein, The application relates to a key assembly. The application relates to a key assembly.

7. The key assembly of claim 6, wherein, The application relates to a key assembly.

8. The key assembly of claim 1, wherein, The application relates to a key assembly.

9. The key assembly of claim 1, wherein, The application relates to a key assembly.

10. An electronic device, comprising: The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly. The application relates to a key assembly.