Key structure and electronic equipment

Abstract

The utility model relates to a key structure and electronic equipment. The key structure comprises a shell, a key assembly and a circuit board assembly, a key main body groove, a circuit board groove and a poking needle groove are formed in the side wall of the shell, an opening of the key main body groove faces the outer side of the shell, an opening of the circuit board groove is communicated with the inner side of the shell, and the key main body groove is communicated with the circuit board groove through the poking needle groove; the key assembly comprises a key main body and a key poking needle, the key main body can be assembled in the key main body groove, the key poking needle can be assembled in the poking needle groove, and the peripheral side of the key poking needle can be assembled with the side wall of the poking needle groove in a sealing manner; the circuit board assembly can be assembled in the circuit board groove, and when the key body is pressed, the key poking needle can abut against the circuit board assembly, so that the setting function of the electronic equipment is achieved. The key structure provided by the utility model is good in sealing performance, and the waterproof function of the electronic equipment can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment, and more specifically, to a key structure and electronic equipment. Background Art

[0002] With the development of science and technology, electronic devices have become indispensable consumer products in daily life. In order to achieve their various functional requirements, buttons are usually set on the outside of electronic devices, and the setting of buttons usually reduces the sealing performance of the entire electronic device.

[0003] In view of this, it is urgent to design a key structure that can be sealed and waterproof. Utility Model Content

[0004] One purpose of the utility model is to provide a key structure and an electronic device.

[0005] According to a first aspect of the present invention, a key structure is provided, which is applied to an electronic device, comprising:

[0006] A housing, wherein a key body groove, a circuit board groove and a poking pin groove are arranged on the side wall of the housing, the opening of the key body groove faces the outside of the housing, the opening of the circuit board groove is communicated with the inside of the housing, and the key body groove and the circuit board groove are communicated through the poking pin groove;

[0007] A key assembly, the key assembly comprising a key body and a key poking pin, the key body being capable of being assembled in the key body groove, the key poking pin being capable of being assembled in the poking pin groove, and the peripheral side of the key poking pin being capable of being sealed and assembled with the side wall of the poking pin groove;

[0008] A circuit board assembly can be assembled in the circuit board slot. When the button body is pressed, the button needle can press against the circuit board assembly to realize the setting function of the electronic device.

[0009] Optionally, the button poking needle includes a poking needle body and a poking needle soft glue arranged on the peripheral side of the poking needle body, and the poking needle body can be sealed and connected to the peripheral side of the poking needle groove through the poking needle soft glue.

[0010] Optionally, the soft glue of the piercing needle is integrally formed by injection molding of liquid silicone on the piercing needle body.

[0011] Optionally, a limit pin groove is further provided on the side wall of the housing, the limit pin groove is communicated with the key body groove, and an opening thereof is communicated with the inner side of the housing;

[0012] The key structure also includes a limit pin, which can be assembled in the limit pin groove to limit the key body from escaping from the key body groove, and the peripheral side of the limit pin can be sealed and assembled with the side wall of the limit pin groove.

[0013] Optionally, the limiting pin includes a limiting body and a limiting soft rubber arranged on the periphery of the limiting body, and the limiting body can be sealed and assembled with the side wall of the limiting pin groove through the limiting soft rubber.

[0014] Optionally, the limiting soft glue is integrally formed by liquid silicone and injection-molded on the limiting body.

[0015] Optionally, a disassembly groove is further extended from the side of the limiting pin groove, and a disassembly boss is further extended from the end of the limiting body;

[0016] When the limiting body is located in the limiting pin groove, the disassembly boss is located in the disassembly groove, and the disassembly boss can be used to load and unload the limiting pin.

[0017] Optionally, a short hook groove and a long hook groove are provided at both ends of the key body groove, the short hook groove is a blind groove, connected to the key body groove, one end of the long hook groove is connected to the key body groove, and the other end is connected to the limit pin groove;

[0018] A short hook portion and a long hook portion are provided at both ends of the key body. When the key body is assembled in the key body groove, the short hook portion is hooked in the short hook groove, and the long hook portion is located in the long hook groove and can be hooked with the limit pin.

[0019] Optionally, the circuit board assembly includes a circuit board bracket and a flexible circuit board, the flexible circuit board can be assembled in the circuit board slot through the circuit board bracket, and the flexible circuit board can be connected to a mainboard of the electronic device.

[0020] According to a second aspect of the present invention, an electronic device is provided, comprising the key structure described in the first aspect.

[0021] One technical effect of the utility model is that by setting a key body groove on the housing, and connecting the key piercing pin groove with the circuit board groove, pressing the key body can push the key piercing pin against the circuit board component to realize the setting function of the electronic device. Among them, by setting the peripheral side of the key piercing pin to be sealed with the side wall of the piercing pin groove, dust and moisture outside the housing can be prevented from entering the interior of the housing, thereby improving the sealing and waterproof performance of the electronic device.

[0022] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present utility model and, together with the description, are used to explain the principles of the present utility model.

[0024] Figure 1 The utility model is a schematic diagram of an exploded structure of a key structure provided by the utility model.

[0025] Figure 2 This is one of the structural schematic diagrams of a shell provided by the utility model.

[0026] Figure 3 This is the second structural schematic diagram of a shell provided by the utility model.

[0027] Figure 4 This is the third structural schematic diagram of a shell provided by the utility model.

[0028] Figure 5 The utility model is a structural schematic diagram of a key main body provided by the utility model.

[0029] Figure 6 The utility model is a structural schematic diagram of a key-pressing needle.

[0030] Figure 7 The utility model is a schematic structural diagram of a limit pin provided by the utility model.

[0031] Figure 8 The utility model is a structural schematic diagram of a circuit board assembly provided by the utility model.

[0032] Fig. 9 The utility model is a schematic diagram of the assembly steps of a key structure provided by the utility model.

[0033] Fig.10 A schematic diagram of the assembly structure of a key structure provided by the utility model.

[0034] Fig.11 yes Fig.10 Schematic diagram of the cross-sectional structure at XX in the middle.

[0035] Fig.12 yes Fig.10 Schematic diagram of the cross-sectional structure at YY in the figure.

[0036] Fig.13 The utility model is a structural schematic diagram of a key main body provided by the utility model when it is not pressed.

[0037] Fig.14 The utility model is a structural schematic diagram of a key main body in a pressed state.

[0038] Description of reference numerals:

[0039] 1. Shell; 11. Key body slot; 12. Circuit board slot; 13. Poking needle slot; 14. Limit pin slot; 15. Short hook slot; 16. Long hook slot; 17. Disassembly slot; 2. Key body; 21. Short hook portion; 22. Long hook portion; 23. Key portion; 3. Key poking needle; 31. Poking needle body; 32. Poking needle soft glue; 4. Limit pin; 41. Limit body; 42. Limit soft glue; 43. Disassembly boss; 5. Circuit board assembly; 51. Circuit board bracket; 52. Flexible circuit board; 53. Pressing area. DETAILED DESCRIPTION

[0040] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0041] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0042] Techniques and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the techniques and equipment should be considered part of the specification.

[0043] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0044] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0045] like Figures 1 to 12As shown, according to the first aspect of the utility model, there is provided a key structure, which is applied to an electronic device, comprising: a shell 1, a key assembly and a circuit board assembly 5, wherein a key body 2 groove 11, a circuit board groove 12 and a piercing needle groove 13 are arranged on the side wall of the shell 1, the opening of the key body 2 groove 11 faces the outside of the shell 1, the opening of the circuit board groove 12 is communicated with the inner side of the shell 1, and the key body 2 groove 11 and the circuit board groove 12 are communicated through the piercing needle groove 13; the key assembly comprises a key body 2 and a key piercing needle 3, the key body 2 can be assembled in the key body 2 groove 11, the key piercing needle 3 can be assembled in the piercing needle groove 13, and the peripheral side of the key piercing needle 3 can be sealed and assembled with the side wall of the piercing needle groove 13; the circuit board assembly 5 can be assembled in the circuit board groove 12, and when the key body 2 is pressed, the key piercing needle 3 can press against the circuit board assembly 5 to realize the setting function of the electronic device.

[0046] Specifically, in this embodiment, the side wall of the housing 1 is provided with a key body 2 groove 11 facing the outside of the housing 1 for assembling the key body 2, and the circuit board groove 12 is also provided on the side wall of the housing 1, and is connected with the key body 2 groove 11 through the piercing groove 13, so that when the key body 2 is assembled in the key body 2 groove 11, the key piercing needle 3 assembled in the piercing groove 13 can be pushed to move toward the circuit board assembly 5 assembled in the circuit board groove 12, thereby causing the key piercing needle 3 to press the circuit board assembly 5, thereby triggering the corresponding circuit connection, so that the electronic device can realize the set function, such as power on, power off, etc. In actual application, the key body 2 can be provided with a key portion 23 at a position corresponding to the key piercing needle 3, so as to facilitate the key body 2 to press the key piercing needle 3.

[0047] The opening of the circuit board slot 12 is connected to the inner side of the housing 1, so that the circuit board assembly 5 is connected to the control module inside the housing 1, such as the motherboard of the electronic device. In one embodiment, the side wall of the housing 1 is provided with a groove portion on the side adjacent to the opening of the slot 11 of the key body 2, and the opening of the circuit board slot 12 is located on the bottom wall of the groove portion, such as Figures 1 to 4 As shown, the provision of the groove portion facilitates the assembly and disassembly of the circuit board assembly 5 , as well as the connection between the circuit board assembly 5 and the internal equipment of the housing 1 .

[0048] In the above embodiment, the side of the key probing needle 3 and the side wall of the probing needle groove 13 are sealed, so that it is difficult for moisture and dust outside the housing 1 to enter the circuit board groove 12 from the groove 11 of the key body 2, avoiding affecting the function of the circuit board assembly 5 and the functions of other electronic devices inside the housing 1, and ensuring the safety and reliability of the device. Among them, the sealed assembly of the key probing needle 3 and the probing needle groove 13 can be achieved by interference fitting or setting a sealing ring. In practical applications, this key structure can be set in electronic devices such as mobile phones, tablets or wearable devices. It has a simple structure, is easy to assemble, and can improve the sealing and waterproof performance of electronic devices.

[0049] In addition, in the above embodiment, the waterproof level of the electronic device can also be adjusted by setting the interference amount between the key probing needle 3 and the probing needle groove 13.

[0050] Alternatively, if Figure 6 and Fig.11 As shown, the button poking needle 3 includes a poking needle body 31 and a poking needle soft glue 32 arranged on the peripheral side of the poking needle body 31 , and the poking needle body 31 can be sealed and connected with the peripheral side of the poking needle groove 13 through the poking needle soft glue 32 .

[0051] Specifically, in this embodiment, the needle body 31 mainly provides the function of pressing the circuit board assembly 5, while the needle soft glue 32 mainly provides the sealing function. The needle soft glue 32 can be a separate structure that is separately sleeved on the needle body 31, or a structure that is integrated with the needle body 31. The utility model does not limit this. In the process of the key body 2 pressing the needle body 31, the needle soft glue 32 can always maintain an interference fit with the side wall of the needle groove 13 during the movement of the needle body 31, thereby improving its sealing performance.

[0052] Alternatively, if Figure 6 and Fig.11 As shown, the needle soft glue 32 is integrally formed and injection-molded on the needle body 31 using liquid silicone.

[0053] Specifically, in this embodiment, the piercing needle body 31 can be made of stainless steel. Liquid silicone has the characteristics of good fluidity, fast curing speed, non-toxicity and environmental protection, and is very suitable for injection molding. The liquid silicone is injected on the piercing needle body 31 through an integrated molding injection molding process, so that the liquid silicone can be tightly attached to the piercing needle body 31, forming a soft, elastic and wear-resistant soft rubber ring. This layer of soft rubber ring not only enhances the sealing between the key piercing needle 3 and the piercing needle groove 13, preventing external dust and moisture from entering, but also ensures the stability and smoothness of the key piercing needle 3 during the pressing process.

[0054] In addition, the interference between the liquid silicone and the needle groove 13 is relatively small, and an interference of 0.05 on one side can meet the requirements of level 7 waterproofing without affecting the feel of the side buttons.

[0055] Alternatively, if Figures 1 to 4 as well as Figures 10 to 12 As shown, a limit pin 4 groove 14 is also provided on the side wall of the shell 1, and the limit pin 4 groove 14 is connected to the key body 2 groove 11, and its opening is connected to the inner side of the shell 1; the key structure also includes a limit pin 4, and the limit pin 4 can be assembled in the limit pin 4 groove 14, and is used to limit the key body 2 from escaping from the key body 2 groove 11, and the peripheral side of the limit pin 4 can be sealed and assembled with the side wall of the limit pin 4 groove 14.

[0056] Specifically, in this embodiment, the setting of the limit pin 4 can make the key body 2 more firmly assembled in the groove 11 of the key body 2, and the assembly of the limit pin 4 will cause the limit pin 4 groove 14 to communicate with the inner side of the housing 1. Most of the limit pins 4 in the prior art do not have a waterproof function, and it is necessary to set a waterproof double-sided tape between the middle frame and the rear shell to prevent water, which occupies the internal space of the electronic device. The utility model, by sealing the side of the limit pin 4 with the side wall of the limit pin 4 groove 14, on the one hand, makes the limit pin 4 have waterproof performance, and on the other hand, saves the space occupied by the separate waterproof structure inside the housing 1, which is conducive to the miniaturization of the electronic device.

[0057] In the above structure, the sealing assembly of the stop pin 4 and the stop pin 4 groove 14 can be achieved by interference fitting or by setting a sealing ring around the stop pin 4, and the present invention does not limit this. In practical applications, through the sealing assembly of the piercing needle body 31 and the piercing needle groove 13, and the sealing assembly of the stop pin 4 and the stop pin 4 groove 14, it is difficult for dust and moisture outside the shell 1 to enter the inside of the shell 1 through the key body 2 groove 11, thereby improving the sealing performance of the electronic device. Furthermore, by adjusting the assembly interference amount between the piercing needle body 31 and the piercing needle groove 13, and by adjusting the assembly interference amount between the stop pin 4 and the stop pin 4 groove 14, the waterproof level of the entire key structure can be adjusted, so that it can adapt to electronic devices with different waterproof requirements.

[0058] Alternatively, if Figure 7 and Figures 10 to 12 As shown, the limiting pin 4 includes a limiting body 41 and a limiting soft glue 42 arranged around the limiting body 41 , and the limiting body 41 can be sealed and assembled with the side wall of the limiting pin 4 groove 14 through the limiting soft glue 42 .

[0059] Specifically, in this embodiment, the limiting body 41 mainly provides the function of limiting the key body 2 from escaping from the key body 2 slot 11, while the limiting soft glue 42 mainly provides a sealing function. The limiting soft glue 42 can be a separate structure that is separately sleeved on the limiting body 41, or a structure that is integrated with the limiting body 41. The utility model does not limit this. By setting the limiting soft glue 42, the sealing performance of the limiting pin 4 is further improved.

[0060] Alternatively, if Figure 7 As shown, the limiting soft glue 42 is integrally formed by injection molding of liquid silicone on the limiting body 41 .

[0061] Specifically, in this embodiment, the limiting body 41 can be made of PA plus glass fiber, and liquid silicone has the characteristics of good fluidity, fast curing speed, non-toxicity and environmental protection, and is very suitable for injection molding. The liquid silicone is injected on the limiting body 41 through an integrated molding injection molding process, so that the liquid silicone can be tightly attached to the limiting body 41, forming a layer of soft, elastic and wear-resistant soft rubber ring. This layer of soft rubber ring enhances the sealing between the limiting body 41 and the limiting groove.

[0062] Alternatively, if Figure 1 to Figure 2 as well as Figure 7 and Fig.10 As shown, a disassembly groove 17 is also extended from the side of the limit pin 4 groove 14, and a disassembly boss 43 is also extended from the end of the limit body 41; when the limit body 41 is located in the limit pin 4 groove 14, the disassembly boss 43 is located in the disassembly groove 17, and the disassembly boss 43 can be used to load and unload the limit pin 4.

[0063] Specifically, in actual application, a disassembly groove 17 is provided on the side of the limiting groove, so that the disassembly boss 43 protruding from the limiting body 41 is located in the disassembly groove 17, which facilitates the disassembly of the limiting pin 4. When assembling the limiting pin 4, it is only necessary to put the limiting pin 4 into the opening of the limiting groove, and when disassembling, the limiting pin 4 is pulled out through the disassembly boss 43. The provision of the disassembly boss 43 and the disassembly groove 17 further simplifies the assembly of the key structure and improves production efficiency.

[0064] Alternatively, if Figure 5 and Fig.11As shown, a short hook groove 15 and a long hook groove 16 are provided at both ends of the groove 11 of the key body 2, the short hook groove 15 is a blind groove, connected with the groove 11 of the key body 2, one end of the long hook groove 16 is connected with the groove 11 of the key body 2, and the other end is connected with the groove 14 of the limit pin 4; a short hook portion 21 and a long hook portion 22 are provided at both ends of the key body 2, when the key body 2 is assembled in the groove 11 of the key body 2, the short hook portion 21 is hooked in the short hook groove 15, the long hook portion 22 is located in the long hook groove 16, and can be hooked with the limit pin 4.

[0065] Specifically, in this embodiment, a long groove portion and a short hook portion 21 are provided at both ends of the key body 2, so that during the assembly process, the short hook portion 21 can be first assembled into the short hook groove 15, and then the long hook portion 22 can be pressed into the long hook groove 16 and hooked with the corresponding position on the limit pin 4 to achieve the assembly of the key body 2, refer to Fig. 9 This design makes the assembly of the key body 2 in the key slot more stable and reliable, and has a simple structure and is easy to assemble.

[0066] Furthermore, the short hook groove 15 is a blind groove, and external moisture and impurities will not enter the inner side of the housing 1 through the short hook groove 15. The long hook groove 16 is connected to the limit groove, and the limit pin 4 is sealed and assembled with the limit groove, so that moisture and impurities outside the housing 1 will not enter the interior of the housing 1 through the position of the long hook groove 16. In addition, the piercing needle groove 13 is connected to the circuit board groove 12, and the piercing needle body 31 is sealed and assembled with the piercing needle groove 13, so that moisture and impurities outside the housing 1 will not enter the circuit board groove 12 through the piercing needle groove 13, and even the interior of the housing 1, so that the sealing of the entire key structure is better and the waterproof performance is higher.

[0067] Alternatively, if Figure 1 , Figure 8 and Fig.10 As shown, the circuit board assembly 5 includes a circuit board bracket 51 and a flexible circuit board 52. The flexible circuit board 52 can be assembled in the circuit board slot 12 through the circuit board bracket 51, and the flexible circuit board 52 can be connected to the main board of the electronic device.

[0068] Specifically, in this embodiment, the flexible circuit board 52 is assembled in the circuit board slot 12 through the circuit board bracket 51, which facilitates the loading and unloading of the flexible circuit board 52, improves the assembly efficiency, and ensures a stable connection between the flexible circuit board 52 and components such as the motherboard in the electronic device.

[0069] In one embodiment, if Figures 1 to 12As shown, the housing 1 of the key structure has a key body 2 slot 11, a circuit board slot 12, a needle slot 13, a stop pin 4 slot 14, a long hook slot 16, a short hook slot 15, and a disassembly slot 17. The key structure also includes a key assembly, a circuit board assembly 5 and a stop pin 4, and its structure is as described in the above embodiments. In the actual assembly process, the circuit board assembly can be assembled into the circuit board slot 12 of the housing 1 first, and then the circuit board assembly can be assembled into the circuit board slot 12 of the housing 1. Fig. 9 S1 in the figure, and then assemble the key poking needle 3 into the poking needle groove 13 of the early housing 1. At this time, the circumference of the key poking needle 3 and the side wall of the poking needle groove 13 are in an interference state for sealing and waterproofing. Fig. 9 Then, the short hook portion 21 of the key body 2 is assembled into the short hook groove 15, and the long hook portion 22 of the key body 2 is assembled into the long hook groove 16, and the key portion 23 of the key body 2 corresponds to the position of the key poking needle 3, referring to Fig. 9 Finally, the limit pin 4 is assembled in the limit pin 4 groove 14. At this time, the peripheral side of the limit pin 4 and the side wall of the limit pin 4 groove 14 are also in an interference state, which is used for sealing and waterproofing. Fig. 9 S4 in.

[0070] In the above embodiment, see Fig.11 , there is a gap between the key body 2 and the key body 2 groove 11 of the shell 1, and water enters the inner side of the shell 1 from these gaps. Since the short hook groove 15 is a blind groove and is not connected to the circuit board groove 12, water cannot enter the inner side of the shell 1 from area A; since the needle soft glue 32 and the needle groove 13 are in an interference state, water is prevented from entering the inner side of the shell 1 from area B; since the limiting soft glue 42 and the limiting pin 4 groove 14 are in an interference state, water is prevented from entering the inner side of the shell 1 from area C. So far, water entering the key body 2 groove 11 cannot enter the inner side of the shell 1 from area A, area B and area C, that is, water cannot enter the circuit board groove 12 of the shell 1, nor can it cross the limiting soft glue 42 in the limiting pin 4 groove 14 to enter the interior of the electronic device, completing the sealing and waterproofing of the key structure.

[0071] In the above structure, the button structure is designed as a blind groove in area A, and waterproofing is achieved by using liquid injection needle soft glue 32 in area B; and waterproofing is achieved by using liquid injection limit soft glue 42 in area C. Liquid injection allows the hard glue and the soft glue to be closely combined, and the soft glue will not be turned over during assembly and use, which can be more effectively waterproof and can reach IPX7 waterproof level. It is also easier to adjust, and the waterproofing degree can be flexibly adjusted by adjusting the size of the interference amount.

[0072] Furthermore, the button structure in area B is waterproofed by liquid injection-molded soft glue 32. The interference between the liquid silicone and the needle groove 13 is small. The interference of 0.05 on one side can meet the requirements of level 7 waterproofing without affecting the feel of the side buttons.

[0073] In addition, the key structure is waterproofed in the C area by using liquid injection soft limit glue 42. The limit pin 4 has a waterproof function that the limit pin 4 in the current market does not have. The waterproof effect is better and the waterproof level is easier to adjust. It solves the problem that other waterproof measures such as double-sided tape cannot be used due to limited space occupied by built-in parts, and at the same time, it occupies less space. Figures 1 to 12 According to the second aspect of the utility model, an electronic device is provided, comprising the key structure described in the first aspect.

[0074] Specifically, in this embodiment, the electronic device includes the key structure provided in any of the above embodiments, and the key structure has the characteristics of good sealing, simple structure, high pressing sensitivity, etc., so that when it is applied to the electronic device, the waterproof level of the electronic device can be improved. In the utility model, the electronic device can be various devices that require input operations, such as smart phones, tablet computers, wearable devices, game devices, etc., which can provide users with a better use experience.

[0075] In practical applications, when the key structure provided by the first aspect is applied to an electronic device, when the key body 2 is not pressed, the reference Fig.13 At this time, there is a gap between the bottom of the long hook groove 16 and the short hook groove 15 and the long hook part 22 and the short hook part 21 on the key body 2. The two sides of the key body 2 are respectively hooked with the short hook part 21 through the clamping structure inside the short hook groove 15, and the clamping structure at the end of the limit pin 4 is hooked with the long hook part 22, and the key part 23 on the key body 2 contacts one end of the key piercing needle 3, and the other end of the key piercing needle 3 contacts the pressing area 53 on the circuit board assembly 5, so as to realize the assembly of the entire key structure. Among them, the piercing needle soft glue 32 and the limit soft glue 42 are respectively fitted with the piercing needle groove 13 and the limit pin groove 14 by interference, so as to realize sealing.

[0076] When it is necessary to press the button body and press against the circuit board component to realize a certain function of the electronic device, the button body is pressed, the button part of the button body presses against the button poking pin, and the button poking pin presses against the pressing area to complete the entire pressing action. At this time, a certain gap is formed between the long hook part of the button body and the limit pin, and between the short hook part and the short hook groove, which easily leads to moisture and the like entering through these gaps. However, since the poking pin software set on the side of the poking pin body can be fitted with the surrounding wall of the poking pin groove by interference fit, and the limiting software set on the side of the limiting body can also be fitted with the surrounding wall of the limit pin groove by interference fit, the moisture and the like in these gaps can be blocked outside the shell, thereby improving the sealing performance of the electronic device. For reference, Fig.14 .

[0077] Normally, after pressing the key body, the key body can rebound to the initial position through the recovery action of the pressing area on the circuit board assembly. This part is a conventional design and will not be described here.

[0078] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0079] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A key structure, applied to electronic equipment, characterized in that: include: A housing, wherein a key body groove, a circuit board groove and a poking pin groove are arranged on the side wall of the housing, the opening of the key body groove faces the outside of the housing, the opening of the circuit board groove is communicated with the inside of the housing, and the key body groove and the circuit board groove are communicated through the poking pin groove; A key assembly, the key assembly comprising a key body and a key poking pin, the key body being capable of being assembled in the key body groove, the key poking pin being capable of being assembled in the poking pin groove, and the peripheral side of the key poking pin being capable of being sealed and assembled with the side wall of the poking pin groove; A circuit board assembly can be assembled in the circuit board slot. When the button body is pressed, the button needle can press against the circuit board assembly to realize the setting function of the electronic device.

2. The key structure according to claim 1, characterized in that: The button poking needle comprises a poking needle body and a poking needle soft glue arranged on the peripheral side of the poking needle body, and the poking needle body can be sealed and connected with the peripheral side of the poking needle groove through the poking needle soft glue.

3. The key structure according to claim 2, characterized in that: The soft glue of the stabbing needle is integrally formed by injection molding of liquid silicone on the stabbing needle body.

4. The key structure according to any one of claims 1 to 3, characterized in that: A limit pin groove is also provided on the side wall of the housing, the limit pin groove is communicated with the key body groove, and its opening is communicated with the inner side of the housing; The key structure also includes a limit pin, which can be assembled in the limit pin groove to limit the key body from escaping from the key body groove, and the peripheral side of the limit pin can be sealed and assembled with the side wall of the limit pin groove.

5. The key structure according to claim 4, characterized in that: The limiting pin comprises a limiting body and a limiting soft rubber arranged on the periphery of the limiting body, and the limiting body can be sealed and assembled with the side wall of the limiting pin groove through the limiting soft rubber.

6. The key structure according to claim 5, characterized in that: The limiting soft glue is integrally formed by liquid silicone and injection-molded on the limiting body.

7. The key structure according to claim 5 or 6, characterized in that: A disassembly groove is also extended at the side of the limiting pin groove, and a disassembly boss is also extended at the end of the limiting body; When the limiting body is located in the limiting pin groove, the disassembly boss is located in the disassembly groove, and the disassembly boss can be used to load and unload the limiting pin.

8. The key structure according to claim 4, characterized in that: A short hook groove and a long hook groove are provided at both ends of the key body groove, the short hook groove is a blind groove and is connected to the key body groove, one end of the long hook groove is connected to the key body groove, and the other end is connected to the limit pin groove; A short hook portion and a long hook portion are provided at both ends of the key body. When the key body is assembled in the key body groove, the short hook portion is hooked in the short hook groove, and the long hook portion is located in the long hook groove and can be hooked with the limit pin.

9. The key structure according to claim 1, characterized in that: The circuit board assembly includes a circuit board bracket and a flexible circuit board. The flexible circuit board can be assembled in the circuit board slot through the circuit board bracket, and the flexible circuit board can be connected to the main board of the electronic device.

10. An electronic device, characterized in that: A key structure comprising any one of claims 1 to 9.

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