Key module and electronic equipment

Abstract

The invention provides a key module and electronic equipment. The key module comprises an elastic component and a conductive component, the elastic component is arranged on the conductive component and arches towards the direction far away from the conductive component, and the conductive component is provided with a triggering part which is arranged at an interval with the elastic component and a supporting part which is electrically contacted with the elastic component; wherein the trigger part is configured to be electrically contacted with the elastic component which is pressed and displaced; a containing groove is formed in the face, making contact with the elastic component, of the supporting part, and the containing groove is configured to be used for containing chippings generated by friction between the elastic component and the supporting part. Through the arrangement, metal scraps accumulated between the supporting part and the elastic component can be reduced, so that the risk of short circuit of the conductive component and the elastic component is reduced, and the reliability of the key module is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic devices, and in particular to a key module and an electronic device. Background Art

[0002] At present, in addition to realizing the interaction between users and electronic devices through touch panels, in order to improve the convenience of operation, electronic devices are often also provided with key modules for users to press to realize corresponding functions, such as turning on and off, increasing and decreasing the volume, or switching the usage mode, etc. Among them, common key modules generally include: a conductive structure and a metal spring arranged on the conductive structure, and the metal spring has a fixed contact that maintains electrical contact with the conductive structure, and a movable contact arranged at intervals from the conductive structure. At the same time, the movable contact can also be displaced and electrically contacted with the conductive structure after the metal spring is pressed, so as to trigger an electrical signal to realize the above functions. However, in the process of pressing the metal spring, the fixed contact will often rub against the conductive structure, so that the key module that is used for a long time will produce metal debris between the metal spring and the conductive structure, resulting in an increased risk of short circuit of the key module, which reduces the reliability of the key module. Summary of the invention

[0003] On the one hand, the present application provides a key module, which includes: an elastic member and a conductive member; the elastic member is arranged on the conductive member and arched in a direction away from the conductive member, and the conductive member has a trigger portion arranged at a distance from the elastic member, and a support portion electrically contacting the elastic member; wherein the trigger portion is configured to electrically contact the elastic member after being pressed and displaced; a receiving groove is provided on a side of the support portion that contacts the elastic member, and the receiving groove is configured to receive foreign matter generated by friction between the elastic member and the support portion.

[0004] On the other hand, the present application further provides an electronic device, which includes: a device body and the above-mentioned key module, and the key module is arranged on the device body and electrically connected to the device body.

[0005] The key module provided by the present application is provided with a receiving groove on the support part which is in electrical contact with the conductive component and the elastic component, and the receiving groove is located on the side of the support part which is in contact with the elastic component, so that when the elastic component is pressed and rubbed against the support part, metal debris generated between the elastic component and the support part can fall into the receiving groove, so as to reduce the metal debris retained between the elastic component and the support part, thereby reducing the risk of short circuit between the elastic component and the conductive component and improving the reliability of the key module. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0007] Figure 1 is a schematic diagram of the structure of an electronic device 10 provided in an embodiment of the present application;

[0008] Figure 2 yes Figure 1 A schematic diagram of an exploded structure of an electronic device 10;

[0009] Figure 3 yes Figure 1 A schematic diagram of the structure of the middle button module 200;

[0010] Figure 4 yes Figure 3 A schematic diagram of the exploded structure of the middle button module 200;

[0011] Figure 5 yes Figure 4 A schematic structural diagram of the middle fixing seat 210;

[0012] Figure 6 yes Figure 4 A schematic diagram of the connection structure between the middle fixing seat 210 and the conductive member 220;

[0013] Figure 7 yes Figure 6 A schematic structural diagram of the conductive member 220;

[0014] Figure 8 yes Figure 1 A schematic diagram of a partial cross-sectional structure of the middle button module 200 along V-V;

[0015] Fig. 9 yes Figure 1 A schematic diagram of a partial cross-sectional structure of the middle button module 200 along VI-VI;

[0016] Fig.10 yes Fig. 9 Schematic diagram of the exploded structure of the elastic member 230. DETAILED DESCRIPTION

[0017] As used herein, "electronic devices" (or simply "terminals") include, but are not limited to, devices configured to receive / send communication signals via a wireline connection (e.g., via a public switched telephone network (PSTN), a digital subscriber line (DSL), a digital cable, a direct cable connection, and / or another data connection / network) and / or via a wireless interface (e.g., for a cellular network, a wireless local area network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and / or another communication terminal). Communication terminals configured to communicate via a wireless interface may be referred to as "wireless communication terminals", "wireless terminals" or "mobile terminals". Examples of mobile terminals include, but are not limited to, satellite or cellular phones; personal communication system (PCS) terminals that may combine cellular radiotelephones with data processing, fax, and data communication capabilities; PDAs that may include radiotelephones, pagers, Internet / intranet access, web browsers, organizers, calendars, and / or global positioning system (GPS) receivers; and conventional laptop and / or palmtop receivers or other electronic devices that include radiotelephone transceivers. A mobile phone is an electronic device equipped with a cellular communication module.

[0018] The present application is further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only used to illustrate the present application, but are not intended to limit the scope of the present application. Similarly, the following examples are only some embodiments of the present application rather than all embodiments, and all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0019] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0020] See also Figure 1 to Figure 2 , Figure 1 is a schematic diagram of the structure of an electronic device 10 provided in an embodiment of the present application, Figure 2 yes Figure 1 FIG. 1 is a schematic diagram of an exploded structure of an electronic device 10 .

[0021] The electronic device 10 provided in the embodiment of the present application may be a device with a key function such as a mobile phone, a smart watch, a tablet computer, and an e-book reader. The following is an example in which the electronic device 10 is a mobile phone. Figure 1As shown, the electronic device 10 may include: a device body 100 and a key module 200. Among them, the device body 100 may be integrated with various functional devices required by the electronic device 10, such as a microphone, a speaker, a battery, a main board, etc. The key module 200 is arranged on the outer surface of the device body 100 and is electrically connected to the device body 100, and the key module 200 can be pressed by the user to trigger an electrical signal to implement functions such as power on and off, volume increase and decrease, or scene mode switching. In this embodiment, the key module 200 has the advantage of low short circuit risk, and can improve the reliability of the key module 200 to ensure the normal triggering of the key function of the electronic device 10.

[0022] Exemplarily, when the electronic device 10 is a mobile phone, the device body 100 may include: a housing 110 and a display screen 120. Among them, the housing 110 can be used to install various functional devices integrated in the device body 100, and the button module 200 can be arranged on the outer surface of the housing 110 and electrically connected to the main board (circuit board) installed on the housing 110. The display screen 120 can be covered on the housing 110 to provide an image display function for the device body 100. In this embodiment, the user can press the button module 200 to trigger an electrical signal to control the display screen 120 to turn off and on. Optionally, when the electronic device 10 is a device without a display function, the design of the display screen 120 can also be omitted.

[0023] Furthermore, the housing 110 may include: a middle frame 111 and a back cover 112. Among them, the display screen 120 may be covered on one side of the middle frame 111, and the back cover 112 may be covered on the other opposite side of the middle frame 111, and the display screen 120 and the back cover 112 may be jointly enclosed with the middle frame 111 to form the aforementioned accommodation space, so as to install various functional devices on the opposite sides of the middle frame 111 respectively. At the same time, since the middle frame 111 and the back cover 112 are generally directly exposed to the external environment, the middle frame 111 and the back cover 112 may have certain wear-resistant, corrosion-resistant and scratch-resistant properties, or a layer of wear-resistant, corrosion-resistant and scratch-resistant functional material may be coated on the outer surface of the middle frame 111 and the back cover 112 (that is, the outer surface of the electronic device 10). In this embodiment, the key module 200 may be exposed on the outer side wall of the middle frame 111, so that the user can press the key module 200 when grasping the electronic device 10.

[0024] It is understandable that the specific structure of the housing 110 is only an example, and the housing 110 may not be limited to the configuration as in the above embodiment. For example, the housing 110 may only include the back cover 112, and the edge area of ​​the back cover 112 may extend in the thickness direction, so that the back cover 112 may form an open structure, and the display screen 120 may be directly covered at the opening of the back cover 112, and together with the back cover 112, it may form a receiving space. Of course, there may be many specific designs of the housing 110, which will not be described in detail in this embodiment.

[0025] The display screen 120 can provide an image display function for the electronic device 10, and the display screen 120 can be a flexible screen or a rigid screen. Among them, the display screen 120 may include a transparent cover plate, a touch panel and a display panel stacked in sequence. Among them, the material of the transparent cover plate can be a flexible or rigid material such as polyimide (PI), colorless polyimide (CPI), glass or sapphire, which is mainly used to protect the display panel and can be used as the outer surface of the device body 100. At the same time, the surface of the transparent cover plate also has a flat and smooth characteristic, so that the user can perform touch operations such as clicking, sliding, and pressing. The display panel is mainly used to display the picture, and can be used as an interactive interface to instruct the user to perform the above-mentioned touch operation on the transparent cover plate. The touch panel is mainly used to respond to the user's touch operation, and convert the corresponding touch operation into an electrical signal and transmit it to the processor of the electronic device 10, so that the electronic device 10 can respond to the user's touch operation accordingly.

[0026] All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0027] See also Figures 3 to 5 , Figure 3 yes Figure 1 The structural diagram of the middle button module 200 is as follows: Figure 4 yes Figure 3 The exploded structural diagram of the middle button module 200 is shown below. Figure 5 yes Figure 4 A schematic structural diagram of the middle fixing seat 210.

[0028] The button module 200 is disposed on the outer wall of the middle frame 111 and can trigger an electrical signal when pressed by a user to realize the corresponding function of the device body 100. Figure 3 to Figure 4 As shown, the button module 200 may include: a fixing seat 210, a conductive member 220 and an elastic member 230. Among them, the fixing seat 210 is arranged on the middle frame 111, and is installed with the conductive member 220 and the elastic member 230, and the fixing seat 210 can also be used to keep the conductive member 220 and the elastic member 230 electrically isolated from other structural parts (such as the middle frame 111). The conductive member 220 is arranged on the fixing seat 210 and is electrically connected to the circuit board in the accommodating space. The elastic member 230 is arranged on the fixing seat 210 and maintains electrical contact with the conductive member 220. At the same time, a part of the elastic member 230 is also arched in the direction away from the conductive member 220, and is spaced apart from the conductive member 220, and the part of the area can also be displaced and electrically contacted with the conductive member 220 after being pressed by the user, so as to trigger the electrical signal to realize the aforementioned function. In this embodiment, metal debris generated by the friction between the elastic component 230 and the conductive component 220 due to displacement can be accommodated by the conductive component 220 to reduce the metal debris remaining between the conductive component 220 and the elastic component 230, thereby reducing the risk of short circuit between the conductive component 220 and the elastic component 230 due to metal debris, and ultimately achieving the purpose of improving the reliability of the key module 200.

[0029] For example, the fixing seat 210 can be arranged on one side of the middle frame 111 in the receiving space, and the material of the fixing seat 210 can be an insulating material such as plastic to play a role in electrical isolation. The fixing seat 210 can be fixed to the middle frame 111 by connection methods such as bonding, welding or clamping, and a mounting groove for accommodating the fixing seat 210 can be opened on one side of the middle frame 111 in the receiving space to reduce the space occupied by the key module 200 in the receiving space. Figure 5 As shown, a groove 211 may be provided on one side of the fixing base 210 facing the outer side wall of the middle frame 111, and the groove 211 may be used to install the elastic member 230, so as to reduce the stacking height of the fixing base 210 and the elastic member 230, thereby reducing the space occupied by the key module 200 in the accommodation space. In addition, a part of the conductive member 220 may be exposed on the bottom wall of the groove 211, so that the conductive member 220 and the elastic member 230 installed in the groove 211 cooperate.

[0030] Optionally, in addition to the aforementioned fixed connection method, the fixing seat 210 and the middle frame 111 can also be assembled in a detachable connection method. At the same time, the fixing seat 210 is not limited to being installed on the middle frame 111, and the specific layout position of the fixing seat 210 can also be adaptively adjusted according to the type of electronic device 10. In addition, the design of the groove 211 can also be omitted, the elastic member 230 can also be directly set on the outer surface of the fixing seat 210, and the conductive member 220 can also be exposed on the outer surface of the fixing seat 210 to cooperate with the elastic member 230.

[0031] Optionally, the design of the fixing seat 210 can also be omitted. For example, when the middle frame 111 is made of insulating materials such as plastic, the conductive member 220 and the elastic member 230 can also be directly installed on the middle frame 111, so as to use the middle frame 111 to play the role of electrical isolation. Among them, the middle frame 111 can be made of plastic material as a whole, or it can be made of plastic material in part. When the fixing seat 210 is omitted, it is only necessary for the conductive member 220 and the elastic member 230 to be installed on the plastic part of the middle frame 111, and this embodiment is not limited to this.

[0032] See also Figures 6 to 8 , Figure 6 yes Figure 4 A schematic diagram of the connection structure between the middle fixing seat 210 and the conductive member 220, Figure 7 yes Figure 6 A schematic diagram of the structure of the conductive member 220, Figure 8 yes Figure 1 A schematic diagram of the partial cross-sectional structure of the middle button module 200 along line V-V.

[0033] The conductive member 220 is embedded in the fixing seat 210 and exposed on the bottom wall of the groove 211, and the conductive member 220 can be in electrical contact with the elastic member 230 to trigger an electrical signal to realize a corresponding function. Figure 6 to Figure 7As shown, the conductive member 220 can be made of a material having conductive properties such as metal, and the conductive member 220 can include: a trigger portion 221 and a support portion 222. The trigger portion 221 can be embedded in the fixed seat 210 and exposed on the bottom wall of the groove 211, and the trigger portion 221 can be spaced apart from the elastic member 230 to electrically contact the elastic member 230 after the elastic member 230 is pressed and displaced. The support portion 222 can also be embedded in the fixed seat 210 and exposed on the bottom wall of the groove 211, and the support portion 222 is also spaced apart from the trigger portion 221 to maintain electrical isolation from the trigger portion 221. At the same time, the side of the support portion 222 exposed on the bottom wall of the groove 211 can bear the elastic member 230 to maintain electrical contact with the elastic member 230. Through the above configuration, when the elastic member 230 is displaced and electrically contacts the trigger part 221 under the pressure of the user, the support part 222 can electrically communicate with the trigger part 221 through the elastic member 230 to trigger the electrical signal to realize the corresponding function of the key module 200.

[0034] The inventor has found through long-term research that when the elastic member 230 is displaced by the user's pressing, since the support portion 222 carries the elastic member 230, that is, it maintains electrical contact with the elastic member 230, the area where the support portion 222 and the elastic member 230 are in contact will rub (friction), thereby generating metal debris. In particular, after the key module 200 is used for a long time, a large amount of metal debris will be generated between the support portion 222 and the elastic member 230, and gradually accumulate in a long strip shape (determined by the shape of the area where the support portion 222 and the elastic member 230 are in contact), and finally form an uncontrollable conductive line. Then, the support portion 222 and the elastic member 230 are very likely to be connected to other conductive parts (such as directly connected to the trigger portion 221) due to the metal debris, so that the risk of functional failure of the key module 230 due to short circuit increases, which is not conducive to improving the reliability of the key module 230 after long-term use. In order to solve the above problem, the support portion 222 in this embodiment can accommodate metal debris to reduce the metal debris retained between the support portion 222 and the elastic member 230, thereby reducing the risk of short circuit between the support portion 222 and the elastic member 230, which is beneficial to improving the reliability of the button module 230 after long-term use. The support portion 222 is described in detail below.

[0035] like Figures 7 and 8As shown, a receiving groove 2221 is provided on the side of the support portion 222 that contacts the elastic member 230, and since the receiving groove 2221 is provided on the side of the support portion 222 that contacts the elastic member 230, when the elastic member 230 is pressed and deformed and rubs against the support portion 222, some metal debris can fall into the receiving groove 2221 as the elastic member 230 and the support portion 222 rub against each other, so that the receiving groove 2221 can play the role of accommodating metal debris, so as to reduce the metal debris accumulated between the support portion 222 and the elastic member 230, thereby reducing the risk of short circuit between the support portion 222 and the elastic member 230, which is conducive to improving the reliability of the key module 230 after long-term use. In addition, the receiving groove 2221 can also reduce the contact area between the support portion 222 and the elastic member 230, thereby reducing the friction area between the support portion 222 and the elastic member 230, and finally reducing the metal debris generated by friction between the support portion 222 and the elastic member 230.

[0036] Exemplarily, the side of the support portion 222 in contact with the elastic member 230 can be divided into a first support surface 2222 and a second support surface 2223 by the receiving groove 2221, and the elastic member 230 can maintain electrical contact with the first support surface 2222 and the second support surface 2223 respectively, so that there can be two conductive contacts between the elastic member 230 and the support portion 222, so as to improve the reliability of the electrical contact between the elastic member 230 and the support portion 222. Specifically, if there is only one conductive contact between the support portion 222 and the elastic member 230, then when a non-conductive foreign object enters between the support portion 222 and the elastic member 230, the single contact between the support portion 222 and the elastic member 230 may be blocked by the foreign object, thereby causing the electrical connection between the support portion 222 and the elastic member 230 to fail, thereby reducing the reliability of the key module 200. Based on this, the support portion 222 maintains electrical contact with the elastic component 230 respectively by using the separated first support surface 2222 and the second support surface 2223, which can reduce the probability of electrical failure between the support portion 222 and the elastic component 230 due to foreign body obstruction, thereby achieving the purpose of improving the reliability of the key module 230.

[0037] The terms "first", "second", and "third" in this application are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first", "second", and "third" may explicitly or implicitly include at least one of the features.

[0038] Optionally, the first support surface 2222 and the second support surface 2223 can be symmetrically arranged with respect to the receiving groove 2221. That is, the receiving groove 2221 can be opened at the middle position of the side where the support portion 222 contacts the elastic member 230. In this way, the receiving groove 2221 located at the middle position can more conveniently accommodate the metal debris generated on the first support surface 2222 and the second support surface 2223, and can limit the length of the metal debris formed on the first support surface 2222 and the second support surface 2223, so as to reduce the probability of the accumulation of metal debris with a longer length on the first support surface 2222 and the second support surface 2223. Of course, considering the different design requirements, the first support surface 2222 and the second support surface 2223 can also be asymmetrically arranged, and this embodiment does not limit this.

[0039] Optionally, the support portion 222 further has a first boss 222a and a second boss 222b that are protruding toward the elastic member 230. Among them, the side of the first boss 222a facing the elastic member 230 can be a first supporting surface 2222, the side of the second boss 222b facing the elastic member 230 can be a second supporting surface 2223, and the receiving groove 2221 is located between the first boss 222a and the second boss 222b. Through the above arrangement, the thickness of the support portion 222 can be partially increased by using the first boss 222a and the second boss 222b, and the depth of the receiving groove 2221 can also be increased accordingly, so that the receiving groove 2221 can accommodate more metal debris and reduce the probability of metal debris escaping from the receiving groove 2221. Of course, the design of the first boss 222a and the second boss 222b can also be omitted, and this embodiment is not limited to this.

[0040] Optionally, in order to reduce the probability of metal debris falling out of the receiving groove 2221, the groove wall of the receiving groove 2221 can be roughened to increase the friction between the metal debris and the groove wall of the receiving groove 2221. At the same time, a magnetic part can also be set in the receiving groove 2221 to use the magnetism of the magnetic part to absorb the metal debris in the receiving groove 2221. Of course, in addition to the roughening design and the magnetic attraction solution, the specific shape of the receiving groove 2221 can also be designed to reduce the probability of metal debris falling out of the receiving groove 2221, which will not be described in detail in this embodiment.

[0041] Optionally, the receiving groove 2221 may also be provided at an edge position, and is not limited to dividing the side where the support portion 222 contacts the elastic member 230 into a first supporting surface 2222 and a second supporting surface 2223. That is, the location where the receiving groove 2221 is provided may also be adaptively adjusted according to design requirements, and the receiving groove 2221 only needs to be provided at the side where the support portion 222 contacts the elastic member 230 electrically, and be able to accommodate metal scraps between the support portion 222 and the elastic member 230, and this embodiment does not limit this.

[0042] For example, in order to cooperate with the elastic member 230 to trigger the electrical signal to realize the corresponding function of the key module 200, the conductive member 220 may include: a first conductive member 220a and a second conductive member 220b. Figures 7 and 8 As shown, the first conductive member 220a and the second conductive member 220b can be embedded in the fixing seat 210 at intervals to maintain electrical isolation by using the fixing seat 210. At the same time, the triggering portion 221 can be a part of the first conductive member 220a, that is, a partial area of ​​the first conductive member 220a can be exposed on the bottom wall of the groove 211, and form the aforementioned triggering portion 221. Similarly, the supporting portion 222 can be a part of the second conductive member 220b, that is, a partial area of ​​the second conductive member 220b can also be exposed on the bottom wall of the groove 211, and form the aforementioned supporting portion 222. In addition, the first conductive member 220a also has a first pin 223 connected to the triggering portion 221 and extending to the outside of the fixing seat 210, so as to use the first pin 223 to electrically connect to an external structure (such as a circuit board). Similarly, the second conductive member 220b also has a second pin 224 connected to the supporting portion 222 and extending to the outside of the fixing seat 210, so as to use the second pin 224 to electrically connect to an external structure. With such a configuration, when the elastic member 230 is displaced by the user's pressing and electrically contacts the trigger portion 221 , the first conductive member 220 a and the second conductive member 220 b can be electrically connected to form a path to trigger the electrical signal, thereby realizing the corresponding function of the key module 230 .

[0043] It can be understood that the above-mentioned setting method of the conductive component 220 is only an exemplary description. In addition to adopting the above-mentioned scheme to set the conductive component 220, the conductive component 220 can also be set using other schemes. It only requires that the conductive component 220 can cooperate with the elastic component 230 to trigger the electrical signal. This embodiment will not be described in detail here.

[0044] Please combine Figure 8 See also Figures 9 and 10 , Fig. 9 yes Figure 1 A schematic diagram of a partial cross-sectional structure of the middle button module 230 along VI-VI, Fig.10 yes Fig. 9 Schematic diagram of the exploded structure of the elastic member 230.

[0045] The elastic member 230 is disposed in the groove 211 and is in electrical contact with a surface of the support portion 222 exposed on the bottom wall of the groove 211. The elastic member 230 can also be in electrical contact with the trigger portion 221 after being pressed and displaced by the user to trigger an electrical signal to implement the corresponding function of the key module 200. Figures 8 to 10 As shown, the elastic member 230 may include: a fixed portion 231 and a movable portion 232. The fixed portion 231 is connected to the movable portion 232 and is arranged around the movable portion 232, and the fixed portion 231 can be electrically contacted with the first support surface 2222 and the second support surface 2223 respectively. The movable portion 232 is arranged opposite to the trigger portion 221, and arches in a direction away from the trigger portion 221 so as to be spaced apart from the trigger portion 221. At the same time, the movable portion 232 can also be displaced in a direction close to the trigger portion 221 under the pressure of the user, and contact the trigger portion 221 after the displacement, so that the first conductive member 220a and the second conductive member 220b are connected to the trigger electrical signal. In addition, when the movable portion 232 is pressed by the user, the fixed portion 231 can rub and rub with the support portion 222 as the movable portion 232 is displaced, so that the aforementioned metal debris is generated between the fixed seat 231 and the support portion 222. In this embodiment, the elastic member 230 may be made of a metal material so that the elastic member 230 can have elasticity and conductivity to meet the elasticity requirements and conductivity requirements of the elastic member 230 .

[0046] For example, the elastic member 230 may include: a first elastic piece 230a, a second elastic piece 230b and a third elastic piece 230c. Figures 9 and 10 As shown, the first elastic piece 230a, the second elastic piece 230b and the third elastic piece 230c can be stacked in sequence in the direction away from the trigger part 221, and the first elastic piece 230a has the aforementioned fixed part 231 and movable part 232. At the same time, the side of the third elastic piece 230c away from the second elastic piece 230b can drive the movable part 232 to move after being pressed by the user, so that the movable part 232 is in electrical contact with the trigger part 221. In addition, the first elastic piece 230a, the second elastic piece 230b and the third elastic piece 230c can be similar in shape. That is, the area of ​​the second elastic piece 230b and the third elastic piece 230c corresponding to the movable part 232 can also be arched in the direction away from the trigger part 221. Through the above arrangement, in addition to utilizing the first spring piece 230a to achieve electrical conduction between the first conductive member 220a and the second conductive member 220b, the second spring piece 230b and the third spring piece 230c can also be utilized to enhance the overall elastic deformation capability of the elastic component 230 to improve the touch pressure reliability of the elastic component 230.

[0047] Optionally, in addition to the above configuration, the elastic member 230 may also include only the first elastic piece 230a. Alternatively, the elastic member 230 may also include only the first elastic piece 230a and the second elastic piece 230b. That is, the specific structure of the elastic member 230 may be adaptively adjusted according to design requirements, and the elastic member 230 only needs to have the fixed portion 231 and the movable portion 232, which is not limited in this embodiment.

[0048] Optionally, the key module 200 may further include: a waterproof membrane 240 and a pressing member 250. Fig. 9 As shown, the waterproof membrane 240 can be covered on the side of the fixing seat 210 where the groove 211 is opened, and the pressing piece 250 is arranged between the waterproof membrane 240 and the elastic member 230 (third spring piece 230c). Among them, the waterproof membrane 240 can seal the groove 211 to cover the elastic member 230, thereby preventing external water stains from entering the groove 211, and in order to ensure the sealing, the waterproof membrane 240 can be sealed and connected with the fixing seat 210 by means such as bonding, welding or welding. The pressing piece 250 can be specifically a striking point, and the pressing piece 250 can be in contact with the elastic member 230 and the waterproof membrane 240 respectively, and can abut against the waterproof membrane 240, so that a part of the waterproof membrane 240 can be protruded in a direction away from the pressing piece 250 to form a protrusion that abuts against the physical button set on the middle frame 111. Through the above arrangement, not only can the waterproof film 240 be used to improve the waterproof performance of the key module 200, but the pressing member 250 can also be used to fill the gap between the waterproof film 240 and the elastic member 230 to solve the problem of virtual position affecting key sensitivity.

[0049] The key module 200 provided in the present application is provided with a receiving groove 2221 on the support portion 222 that is in electrical contact with the conductive component 220 and the elastic component 230, and the receiving groove 2221 is located on the side of the support portion 222 that is in contact with the elastic component 230, so that when the elastic component 230 is pressed and rubbed against the support portion 222, metal debris generated between the elastic component 230 and the support portion 222 can fall into the receiving groove 2221, so as to reduce the metal debris retained between the elastic component 230 and the support portion 222, thereby reducing the risk of short circuit between the elastic component 230 and the conductive component 220, and improving the reliability of the key module 200.

[0050] The above descriptions are only some embodiments of the present application, and do not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A key module, characterized in that: The key module comprises: an elastic component and a conductive component; The elastic component is disposed on the conductive component and arches in a direction away from the conductive component, and the conductive component has a trigger portion spaced apart from the elastic component and a support portion electrically in contact with the elastic component; wherein, The trigger portion is configured to be in electrical contact with the elastic member after being pressed and displaced; a receiving groove is provided on a side of the support portion that contacts the elastic member, and the receiving groove is configured to receive debris generated by friction between the elastic member and the support portion.

2. The key module according to claim 1, characterized in that: A surface of the support portion in contact with the elastic member is divided into a first supporting surface and a second supporting surface by the accommodating groove, and the elastic member is in electrical contact with the first supporting surface and the second supporting surface respectively.

3. The key module according to claim 2, characterized in that: The support portion is further provided with a first boss and a second boss protruding toward the elastic member, wherein the first boss has the first supporting surface, and the second boss has the second supporting surface.

4. The key module according to claim 2, characterized in that: The elastic member includes: a fixed portion electrically contacting the first supporting surface and the second supporting surface respectively, and a movable portion connected to the fixed portion and arched away from the trigger portion; wherein, The movable portion is configured to be displaced and electrically contacted with the trigger portion after being pressed; and the receiving groove is configured to receive debris generated by friction between the fixed portion and the supporting portion.

5. The key module according to claim 4, characterized in that: The elastic member comprises: a first elastic sheet, a second elastic sheet and a third elastic sheet which are sequentially stacked in a direction away from the conductive member; wherein, The first elastic sheet has the fixed portion and the movable portion, and the side of the third elastic sheet facing away from the second elastic sheet is configured to drive the movable portion to move after being pressed, so that the movable portion is in electrical contact with the trigger portion.

6. The key module according to claim 2, characterized in that: The conductive member comprises: a first conductive member and a second conductive member which are electrically isolated; wherein, The first conductive member has the trigger portion, and the second conductive member has the support portion.

7. The key module according to claim 6, characterized in that: The button module also includes: a fixing seat with a groove; The first conductive member and the second conductive member are embedded in the fixing seat, and the trigger portion and the supporting portion are exposed on the bottom wall of the groove; wherein the elastic component is also located in the groove.

8. The key module according to claim 7, characterized in that: The first conductive member further comprises a first pin connected to the trigger portion and extending outside the fixing seat, and the second conductive member further comprises a second pin connected to the support portion and extending outside the fixing seat.

9. The key module according to claim 7, characterized in that: The button module further includes: a waterproof film covering the groove, and a pressing member located between the waterproof film and the elastic member; wherein, The pressing member is in contact with the waterproof membrane and the elastic member respectively, and is configured to press the elastic member when pressed, so that the elastic member is displaced to electrically contact with the triggering part.

10. An electronic device, characterized in that: The electronic device comprises: a device body and a key module as described in any one of claims 1 to 9, and the key module is arranged on the device body and electrically connected to the device body.

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