Key module and electronic equipment

Abstract

The embodiment of the invention provides a key module and electronic equipment, and relates to the technical field of electronic equipment. The key does not have a gap in the width direction of the electronic equipment, and cannot turn over in the length direction of the electronic equipment at the same time. And the keys do not have gaps in the length and thickness directions of the electronic equipment. Through the arrangement mode, the problem of loose texture of the keys is comprehensively solved. And the key module can be independently assembled, so that the assembling difficulty is reduced. The key module comprises a key support, the key support comprises a key support body, a first column and a second column, the first column and the second column are arranged on the same face of the key support body, and the end of the first column and the end of the second column are each provided with a connecting part; the key comprises a key body, an elastic ring, a first hanging lug and a second hanging lug, wherein the first hanging lug and the second hanging lug are arranged at the two ends of the key body. And the blocking piece can be connected to the connecting part. The first elastic piece and the second elastic piece are arranged on the first column and the second column respectively.

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] As a fundamental interactive component of electronic devices, buttons are a crucial window into human-computer interaction. Their quality directly impacts the user experience. The design of buttons directly determines their reliability, feel, and refinement.

[0003] However, in related technologies, the keys are fixed to the middle frame by using the gap between the keys and the middle frame. This often results in the keys being misaligned and wobbling in all directions relative to the middle frame. The keys also feel loose and make unusual noises. Summary of the Invention

[0004] In order to solve the above technical problems, the present application provides a key module and electronic device, which can solve the problems of loose key texture and abnormal noise, and at the same time has the advantage of being easy to assemble.

[0005] In the first aspect, the embodiment of the present application provides a key module, which can be assembled on a middle frame, the middle frame including a first surface and a key window, the key window having an inner wall, the key module including: a key bracket, the key bracket including a key bracket body, and a first column and a second column arranged on the same surface of the key bracket body, the ends of the first column and the second column are both provided with a connecting portion; a key, the key including a key body, an elastic ring and a first hanging ear and a second hanging ear arranged at both ends of the key body, the elastic ring is arranged around the key body, the elastic ring and the key body are both assembled on the key window, the elastic ring is used To fill the gap between the button body and the inner wall, the first hanging ear is provided with a first through hole, and the first through hole can be sleeved on the first column; the second hanging ear is provided with a second through hole, and the second through hole can be sleeved on the second column; the blocking member can be connected to the connecting part, and is used to prevent the first hanging ear from escaping from the first column, and prevent the second hanging ear from escaping from the second column; the first elastic member is arranged between the first hanging ear and the button bracket body, and is used to press the first hanging ear onto the first surface; the second elastic member is arranged between the second hanging ear and the button bracket body, and is used to press the second hanging ear onto the first surface.

[0006] Under the compression of the first and second elastic members, the key has no dead space in the width direction of the electronic device and cannot be flipped along the length direction of the electronic device. Due to the space occupied by the elastic ring, the key has no dead space in the length and thickness directions of the electronic device. This arrangement completely solves the problem of loose key texture, eliminates the possibility of abnormal noise caused by looseness, and improves the user experience. At the same time, the blocking member that can be connected to the connection part can prevent the key from separating from the key bracket, so the key module can be assembled independently, reducing the assembly difficulty.

[0007] In some possible implementations, the elastic ring and the inner wall are interference-fitted, thereby achieving good damping and positioning effects.

[0008] In some possible implementations, the elastic ring is integral with the inner wall. The friction between the elastic ring and the inner wall is small, which helps to reduce the force required to press the button.

[0009] In some possible implementations, the elastic ring includes a protrusion and a recess.

[0010] In some possible implementations, a plurality of protrusions and a plurality of recesses are alternately arranged.

[0011] In some possible implementations, the elastic ring is made of liquid silicone.

[0012] In some possible implementations, the key body includes an annular groove, and the elastic ring portion is disposed in the annular groove.

[0013] In some possible implementations, the widths of the first hanging ear and the second hanging ear are both wider than the width of the key body.

[0014] In some possible implementations, a first plane parallel to the length and width directions of the middle frame divides the key into a first portion and a second portion, the first portion including a first edge of the first hanging ear, a first edge of the second hanging ear, and a first edge of the key body, and the second portion including a second edge of the first hanging ear, a second edge of the second hanging ear, and a second edge of the key body;

[0015] Among them, the distance between the straight line where the first edge of the first hanging ear is located and the first plane, and the distance between the straight line where the first edge of the second hanging ear is located and the first plane, are both greater than the distance between the straight line where the first edge of the key body is located and the first plane; the distance between the straight line where the second edge of the first hanging ear is located and the first plane, and the distance between the straight line where the second edge of the second hanging ear is located and the first plane, are both greater than the distance between the straight line where the second edge of the key body is located and the first plane.

[0016] In some possible implementations, the first elastic member includes a first spring, which is sleeved on the first column; the second elastic member includes a second spring, which is sleeved on the second column.

[0017] In some possible implementations, the connecting portion includes a first annular groove and a second annular groove, the first annular groove is provided at the end of the first column, and the second annular groove is provided at the end of the second column.

[0018] In some possible implementations, the blocking member includes a retaining spring, and the two retaining springs are respectively engaged with the first annular retaining groove and the second annular retaining groove.

[0019] In some possible implementations, a switch structure is also included, and the button also includes an extension column. The switch structure is arranged on the side of the button bracket body facing the button body, and the extension column is arranged on the side of the button body facing the switch structure. The extension column and the switch structure are arranged opposite to each other.

[0020] In some possible implementations, the button bracket further includes a first fixing portion and a second fixing portion fixed to the button bracket body, the first fixing portion is provided with a first fixing hole, the second fixing portion is provided with a second fixing hole, and the button bracket is fixed to the middle frame through the first fixing hole and the second fixing hole.

[0021] In some possible implementations, the opening directions of the first fixing hole and the second fixing hole are parallel to the thickness direction of the middle frame.

[0022] In some possible implementations, the opening directions of the first fixing hole and the second fixing hole are parallel to the width direction of the middle frame.

[0023] In a second aspect, an embodiment of the present application provides an electronic device comprising any one of the above-mentioned key modules. The electronic device has the corresponding beneficial effects of the above-mentioned key modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of a mobile phone provided for related technology;

[0025] Figure 2 A structural diagram of an existing key fixing assembly provided for related technology;

[0026] Figure 3 An assembly diagram of an existing key fixing component provided in the related art;

[0027] Figure 4 A schematic structural diagram of a mobile phone provided in an embodiment of the present application;

[0028] Figure 5 A schematic diagram of a partial structure of a middle frame provided in an embodiment of the present application;

[0029] Figure 6 A schematic structural diagram of a flexible circuit board provided in an embodiment of the present application;

[0030] Figure 7 A schematic diagram of the structure of a button provided in an embodiment of the present application;

[0031] Figure 8 A schematic structural diagram of an elastic ring provided in an embodiment of the present application;

[0032] Figure 9A schematic structural diagram of a button bracket provided in an embodiment of the present application;

[0033] Figure 10 A schematic structural diagram of a first column provided in an embodiment of the present application;

[0034] Figure 11 A schematic diagram of the structure of a clamping spring and a first column provided in an embodiment of the present application;

[0035] Figure 12 A structural diagram of a key module assembly process provided in an embodiment of the present application;

[0036] Figure 13 Another structural schematic diagram of a key module assembly process provided in an embodiment of the present application;

[0037] Figure 14 Another structural diagram of a button provided in an embodiment of the present application;

[0038] Figure 15 A cross-sectional view taken along the AA direction provided in an embodiment of the present application;

[0039] Figure 16 A schematic diagram of the assembly of a button bracket provided in an embodiment of the present application;

[0040] Figure 17 A schematic diagram of the assembly of another key support provided in an embodiment of the present application;

[0041] Figure 18 This is a schematic diagram of the assembly of a key module in a mobile phone provided in an embodiment of the present application. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0043] The term "and / or" in this article is merely a description of the association relationship between associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0044] The terms "upper," "lower," "left," and "right" used herein to indicate directions are intended only to clarify the embodiments and to describe one possible arrangement or configuration of components. They are not intended to limit the relationships between components or their orientation.

[0045] In the description and claims of the embodiments of this application, the terms "first" and "second" are used to distinguish different objects, rather than to describe a specific order of objects. For example, the terms "first target object" and "second target object" are used to distinguish different objects, rather than to describe a specific order of objects.

[0046] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0047] In the description of the embodiments of this application, unless otherwise specified, "multiple" means two or more. For example, "multiple processing units" means two or more processing units; "multiple systems" means two or more systems.

[0048] Figure 1 A schematic diagram of the structure of a mobile phone provided for related technology, see Figure 1 To facilitate the clear description of the subsequent structural features and their positional relationships, the positional relationships of the various structures within the phone are defined using the X-axis, Y-axis, and Z-axis directions. The X-axis represents the width of the phone, the Y-axis represents the length, and the Z-axis represents the thickness. Figure 2 A structural diagram of an existing key fixing assembly provided in the related art. Figure 3 An assembly diagram of an existing key fixing component provided for related technology, see Figure 2 and Figure 3The mobile phone includes an existing middle frame 01 and an existing key fixing assembly 02 disposed within the existing middle frame 01. The existing key fixing assembly 02 includes an existing key body 021, which is assembled within the key window of the existing middle frame 01. To ensure that the existing key body 021 can be assembled within the key window, the existing key body 021 and the key window are clearance-matched. Furthermore, hooks 022 are provided at both ends of the existing key body 021 to prevent the existing key body 021 from falling out of the key window. When a user uses the mobile phone, due to the gap between the existing key body 021 and the key window, the existing key body 021 moves in the Y-axis and Z-axis directions when a key is pressed. Due to the gap between the hook 022 and the existing middle frame 01, the existing key body 021 also moves in the X-axis direction. Furthermore, considering that the width of the hook 022 is not only narrow, but also there is a gap between the hook 022 and the existing middle frame 01, the hook 022 can rotate a certain angle around the Y-axis when a key is pressed or the phone is shaken. Such buttons have problems such as wobbling and looseness. They also have a loose feel and make unusual noises, which provides a poor user experience.

[0049] In order to solve the above problems, an embodiment of the present application provides an electronic device. The electronic device provided in the embodiment of the present application can be a mobile phone, a tablet computer, a personal digital assistant (PDA), a car computer, a smart wearable device, a smart home device, etc. The embodiment of the present application does not specifically limit the specific form of the above electronic devices. Figure 4 A schematic diagram of the structure of a mobile phone provided in an embodiment of the present application is shown in FIG. Figure 4 For ease of explanation, the following description will take the mobile phone 100 as an example. To facilitate a clear description of the subsequent structural features and their positional relationships, the positional relationships of the various structures within the mobile phone 100 are defined using the X-axis, Y-axis, and Z-axis directions. The X-axis is the width of the mobile phone 100, the Y-axis is the length of the mobile phone 100, and the Z-axis is the thickness of the mobile phone 100.

[0050] like Figure 2 As shown, the mobile phone 100 includes a middle frame 10, a rear cover 20, a display panel 30 and a key module 40. The rear cover 20 and the display panel 30 are arranged opposite to each other, and the middle frame 10 is located between the rear cover 20 and the display panel 30.

[0051] Figure 5 This is a partial structural diagram of a middle frame provided in an embodiment of the present application, see Figure 5 . Combined Figure 4The middle frame 10, rear housing 20, and display screen 30 can enclose a housing cavity. The middle frame 10 includes a first surface 101 facing the housing cavity. The housing cavity is provided with a motherboard, a battery, and a retaining wall (not shown) for securing the battery. The motherboard is provided with a processor and a memory. The memory is used to store computer program code. The computer program code includes computer instructions. The processor is used to call computer instructions to enable the mobile phone 100 to perform corresponding operations.

[0052] The material of the rear cover 20 may include, for example, opaque materials such as plastic, plain leather, and fiberglass; or may include translucent materials such as glass. The present embodiment does not limit the material of the rear cover 20.

[0053] The display panel 30 includes, for example, a liquid crystal display (LCD) panel, an organic light emitting diode (OLED) display panel, and an LED display panel. The LED display panel includes, for example, a micro-LED display panel and a mini-LED display panel. The embodiment of the present application does not limit the type of the display panel 30.

[0054] The button module 40 can be a volume button for adjusting the volume, or a power button for waking up and turning off the screen, etc., and this embodiment of the application does not make any specific limitations on this.

[0055] Figure 6 A schematic diagram of the structure of a flexible circuit board provided in an embodiment of the present application is shown in FIG. Figure 6 The mobile phone 100 also includes a flexible circuit board 50. The key module 40 is electrically connected to the mainboard via the flexible circuit board 50. For example, the key module 40 is a volume key for adjusting the volume. When the key module 40 is pressed, it generates an electrical signal, which is transmitted to the mainboard processor via the flexible circuit board 50. The processor adjusts the volume of the mobile phone 100 based on the electrical signal.

[0056] The specific structures of the middle frame 10 and the key module 40 are described below.

[0057] Continue to see Figure 5 The middle frame 10 further includes a button window 102 , and the button window 102 has an inner wall 1021 . Figure 7 A schematic diagram of the structure of a key provided in an embodiment of the present application is shown in FIG. Figure 7. The button module 40 includes a button 401, and the button 401 includes a button body 4011. An elastic ring 4012 is arranged around the button body 4011, and the button body 4011 provided with the elastic ring 4012 can be assembled into the button window 102. The elastic ring 4012 cooperates with the inner wall 1021 of the button window 102, and the cooperation method can include interference fit, or it can be zero fit, that is, the elastic ring 4012 and the button window 102 fit each other, but there is no pressure between the two. The button body 4011 and the elastic ring 4012 can be manufactured by liquid material injection molding process to form an integrated component. Of course, there are many ways to obtain the button body 4011 and the elastic ring 4012, and they can also be obtained in the following way. For example, the button body 4011 can be provided with an annular groove, and the maximum thickness of the elastic ring 4012 can be higher than the depth of the annular groove. Placing the elastic ring 4012 within the annular groove can restrict the position of the elastic ring 4012 relative to the key body 4011, thereby more firmly securing the elastic ring 4012 to the key body 4011. Alternatively, the elastic ring 4012 can be directly placed on the smooth key body 4011, eliminating the need for forming an annular groove. The coordination between the elastic ring 4012 and the key body 4011 can be determined based on actual needs. Figure 8 This is a schematic diagram of the structure of an elastic ring provided in an embodiment of the present application, see Figure 8 A raised portion 40121 and a recessed portion 40122 may be provided on the surface of the annular groove facing the inner wall 1021 of the key window 102. The raised portion 40121 may be interference-fitted with the inner wall 1021 of the key window 102. After the key body 4011 with the elastic ring 4012 is assembled into the key window 102, the inner wall 1021 will squeeze the raised portion 40121 of the elastic ring 4012, and the squeezed redundant elastic ring material may be compressed and accommodated in the recessed portion 40122 of the elastic ring 4012. The elastic ring 4012 with the raised portion 40121 and the recessed portion 40122 can automatically adjust the interference fit between the elastic ring 4012 and the inner wall 1021, and the interference between the elastic ring 4012 and the inner wall 1021 will not be excessive due to factors such as processing errors. The hardness of the elastic ring 4012 and the interference fit between the elastic ring 4012 and the inner wall 1021 can be determined based on actual needs and are not limited in the present embodiment. The material of the elastic ring 4012 can be rubber, liquid silicone, or any other elastic material. Under the action of the elastic ring 4012 squeezing and occupying the space, the key 401 cannot move freely in the Y-axis and Z-axis directions, thereby preventing the key 401 from having a virtual position in the Y-axis and Z-axis directions, and thus preventing the key from becoming loose due to the virtual position in the Y-axis and Z-axis directions.

[0058] Figure 9 A schematic diagram of the structure of a key support provided in an embodiment of the present application is shown in FIG. Figure 9 The button module 40 further includes a button bracket 402, which includes a button bracket body 4021. The button bracket body 4021 is provided with a first column 4022 and a second column 4023 on a side facing the button 401. Figure 7 The button 401 further includes a first hanging ear 4013 and a second hanging ear 4014 disposed at both ends of the button body 4011. The first hanging ear 4013 defines a first through-hole 40131 that can be fitted over the first post 4022. The second hanging ear 4014 defines a second through-hole 40141 that can be fitted over the second post 4023. The button module 40 further includes a first spring 403, a second spring 404, and two retaining springs 406. Figure 10 A schematic diagram of the structure of a first column provided in an embodiment of the present application is shown in FIG. Figure 10 The end of the first column 4022 is provided with a first annular groove 40221. Similarly, the end of the second column 4023 is also provided with a second annular groove. Figure 11 A schematic diagram of the structure of the clamping spring and the first column provided in the embodiment of the present application is shown in FIG. Figure 11 Taking the first column 4022 as an example, when assembling the retaining spring 406, the retaining spring 406 can be positioned with its opening facing the first column 4022, against the first annular retaining groove 40221, and pushed into the first annular retaining groove 40221, thereby securing the retaining spring 406 to the end of the first column 4022. The first spring 403 is sleeved on the first column 4022, located between the first mounting ear 4013 and the key holder body 4021. The second spring 404 is sleeved on the second column 4023, located between the second mounting ear 4014 and the key holder body 4021. Figure 12 This is a structural diagram of a key module assembly process provided in an embodiment of the present application, see Figure 12 When assembling the button module 40 , the first spring 403 and the second spring 404 can be assembled to the first column 4022 and the second column 4023 respectively, and then the first column 4022 and the second column 4023 are inserted into the first through hole 40131 and the second through hole 40141 respectively, and the button 401 is assembled with the button bracket 40 . Figure 13 Another structural diagram of a key module assembly process provided in an embodiment of the present application is shown in FIG. Figure 13. Then, the button 401 is squeezed toward the button bracket 40 so that the first annular groove 40221 and the second annular groove are exposed on the side of the button 401 away from the button bracket 40. At this time, the retaining spring 406 can be installed in the first annular groove 40221 and the second annular groove to prevent the first hanging ear 4013 and the second hanging ear 4014 from falling off from the first column 4022 and the second column 4023. This arrangement enables the button module 40 to be assembled into an independent component, which facilitates the subsequent assembly of the button module 40 to the middle frame 10. In other embodiments, other blocking members besides the retaining spring 406 can be used and connected to the ends of the first column 4022 and the second column 4023 to prevent the first hanging ear 4013 and the second hanging ear 4014 from falling off from the first column 4022 and the second column 4023. The first annular groove 40221 and the second annular groove can also be replaced by any type of connecting portion for connecting the blocking member. When the button module 40 is assembled, even if the button 401 is not pressed, the first spring 403 and the second spring 404 can apply pressure to the button 401. The pressure applied by the springs helps to fix the button 401 in the X-axis direction, avoiding the button 401 from having a virtual position in the X-axis direction, and thus avoiding the button from being loose due to the virtual position of the button in the X-axis direction. Since the first hanging ear 4013 and the second hanging ear 4014 can fit on the first surface 101 of the middle frame 10, it also avoids the problem of the button 401 rotating along the Y axis or along the Z axis when the mobile phone 100 is shaken. The first column 4022 and the second column 4023 can directly contact the first surface 101 of the middle frame 10, or two pits can be set on the first surface 101 of the middle frame 10, and the first column 4022 and the second column 4023 can contact the two pits respectively.

[0059] Of course, the first spring 403 may also be a first elastic rubber sleeve, or any other first elastic member that can replace the first spring 403. The second spring 404 may also be a second elastic rubber sleeve, or any other second elastic member that can replace the second spring 404. The embodiments of the present invention are not limited to the specific type of elastic member, as long as it does not violate the scope of the invention.

[0060] The Y-axis is the length of the key 401, and the Z-axis is the width of the key 401. The widths of the first and second mounting ears 4013, 4014 can both be wider than the width of the key body 4011. Because the first and second mounting ears 4013, 4014 are wider, a larger mating surface is created when mating with the first surface 101 of the middle frame 10, making it difficult for the key 401 to flip over. Figure 14 Another structural diagram of a key provided in an embodiment of the present application is shown in FIG. Figure 14. Exemplarily, a first plane 1 parallel to the X-axis and the Y-axis divides the key 401 into a first part and a second part. The first part includes the first edge L11 of the first hanging ear, the first edge L12 of the second hanging ear, and the first edge L13 of the key body, and the second part includes the second edge L21 of the first hanging ear, the second edge L22 of the second hanging ear, and the second edge L23 of the key body. The distance S11 between the straight line where the first edge L11 of the first hanging ear is located and the first plane, and the distance S12 between the straight line where the first edge L12 of the second hanging ear is located and the first plane, are both greater than the distance S13 between the straight line where the first edge L13 of the key body is located and the first plane. The distance S21 between the straight line where the second edge L21 of the first hanging ear is located and the first plane, and the distance S22 between the straight line where the second edge L22 of the second hanging ear is located and the first plane, are both greater than the distance S23 between the straight line where the second edge L23 of the key body is located and the first plane. When the user presses the key, there may be a situation where the force pressing the key 401 is biased towards the first part or the second part of the key 401. At this point, due to the combined force of the user's pressing and the spring's elastic force, only the edges of the first and second lugs 4013, 4014 of the button 401 contact the first surface 101 of the middle frame 10, forming a support point. Assuming the travel of the button 401 remains constant, the farther the support point is from the button body 4011, the smaller the deflection angle of the button 401. In other words, this arrangement prevents the button from flipping during pressing, improving the user experience.

[0061] Figure 15 A cross-sectional view in the AA direction provided in the embodiment of the present application is shown in FIG. Figure 15 . The key module 40 also includes a switch structure 405, and the key 401 also includes an extension column 4015. The switch structure 405 is arranged on the side of the key bracket body 4021 facing the key body 4011, and the extension column 4015 is arranged on the side of the key body 4011 facing the switch structure 405. The extension column 4015 can be a columnar structure extending along the X-axis direction. The extension column 4015 is arranged opposite to the switch structure 405. The so-called extension column 4015 and the switch structure 405 are arranged opposite to each other, that is, the extension column 4015 and the switch structure 405 overlap in a direction parallel to the plane where the Y-axis and the Z-axis are located. In other words, when the key 401 is pressed, the extension column 4015 of the key 401 applies a force to the switch structure 405 in the X-axis direction. At this time, the switch structure 405 generates an electrical signal and transmits the electrical signal to the main board through the flexible circuit board 50. When the key 401 is released, the extension column 4015 is lifted up and the switch structure 405 returns to the unpressed state.

[0062] Figure 16 This is a schematic diagram of the assembly of a button bracket provided in an embodiment of the present application, see Figure 16. In order to fix the button bracket body 4021 to the middle frame 10, the button bracket 402 also includes a first fixing part 4024 and a second fixing part 4025 respectively located at both ends of the button bracket body 4021. The first fixing part 4024 is provided with a first fixing hole 40241, and the second fixing part 4025 is provided with a second fixing hole 40251. The positions of the first fixing hole 40241 and the second fixing hole 40251 respectively match the positions of the corresponding screw holes on the middle frame 10. The button bracket body 4021 can be fixed to the middle frame 10 by passing the screws through the first fixing hole 40241 and the second fixing hole 40251 and screwing them into the corresponding screw holes. The opening direction of the first fixing hole 40241 and the second fixing hole 40251 can be determined according to actual needs. For example, the opening direction of the first fixing hole 40241 and the second fixing hole 40251 can be the X-axis direction. This arrangement allows the first fixing hole 40241 and the second fixing hole 40251 to fit the first surface 101 of the middle frame 10. In the X-axis direction, the first fixing portion 4024 and the second fixing portion 4025 only occupy a space of the accommodating cavity equivalent to their thickness, which saves more space. Figure 17 For an assembly diagram of another key support provided in an embodiment of the present application, see Figure 17 The opening direction of the first fixing hole 40241 and the second fixing hole 40251 can also be the Z-axis direction. This arrangement is more suitable for automated assembly equipment and is conducive to automated assembly.

[0063] Scene 1

[0064] Figure 18 This is a schematic diagram of the assembly of a key module in a mobile phone provided in an embodiment of the present application, see Figure 18 A mobile phone is provided, comprising a middle frame 10 and a first button module 41 and a second button module 42 disposed on the middle frame 10. The two button modules share a button bracket 402 and a flexible circuit board 50. The first button module 41 comprises two extension columns 4015 and two switch structures 405 corresponding to the extension columns 4015. The two extension columns 4015 are disposed near both ends of the first button module 41. The second button module 42 comprises an extension column 4015 and a switch structure 405 corresponding to the extension column 4015.

[0065] During assembly, the assembled key module 40 is placed into the space of the accommodating cavity, and the key body 4011 is inserted into the key window 102. The ends of the first column 4022 and the second column 4023 are brought into contact with the first surface 101 of the middle frame 10. Screws are then driven into the first fixing hole 40241 and the second fixing hole 40251 using a screw machine or manually to complete the assembly.

[0066] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A key module, characterized in that: The key module can be assembled in a middle frame, the middle frame includes a first surface and a key window, the key window has an inner wall, and the key module includes: A key bracket, comprising a key bracket body, and a first column and a second column arranged on the same surface of the key bracket body, wherein the ends of the first column and the second column are both provided with a connecting portion; A key, the key comprising a key body, an elastic ring, and a first hanging ear and a second hanging ear provided at both ends of the key body, the elastic ring being arranged around the key body, the elastic ring and the key body being assembled in the key window, the elastic ring being used to fill the gap between the key body and the inner wall, the first hanging ear being provided with a first through hole, the first through hole being capable of being sleeved on the first column, the second hanging ear being provided with a second through hole, the second through hole being capable of being sleeved on the second column; a blocking member, which can be connected to the connecting portion and is used to prevent the first hanging ear from falling off the first column and prevent the second hanging ear from falling off the second column; a first elastic member, disposed between the first hanging ear and the button bracket body, and configured to press the first hanging ear against the first surface; A second elastic member is provided between the second hanging ear and the button bracket body, and is used for pressing the second hanging ear onto the first surface.

2. The key module according to claim 1, characterized in that: The elastic ring is interference fit with the inner wall.

3. The key module according to claim 1, characterized in that: The elastic ring is matched with the inner wall.

4. The key module according to claim 1, wherein: The elastic ring includes a convex portion and a concave portion.

5. The key module according to claim 4, characterized in that: The plurality of protrusions and the plurality of recesses are arranged alternately.

6. The key module according to claim 1, characterized in that: The elastic ring is made of liquid silicone.

7. The key module according to claim 1, characterized in that: The button body includes an annular groove, and the elastic ring portion is arranged in the annular groove.

8. The key module according to claim 1, wherein: The widths of the first hanging ear and the second hanging ear are both wider than the width of the button body.

9. The key module according to claim 1, characterized in that: A first plane parallel to the length and width directions of the middle frame divides the key into a first part and a second part, the first part including a first edge of the first hanging ear, a first edge of the second hanging ear, and a first edge of the key body, and the second part including a second edge of the first hanging ear, a second edge of the second hanging ear, and a second edge of the key body; Among them, the distance between the straight line where the first edge of the first hanging ear is located and the first plane, and the distance between the straight line where the first edge of the second hanging ear is located and the first plane are both greater than the distance between the straight line where the first edge of the key body is located and the first plane; the distance between the straight line where the second edge of the first hanging ear is located and the first plane, and the distance between the straight line where the second edge of the second hanging ear is located and the first plane are both greater than the distance between the straight line where the second edge of the key body is located and the first plane.

10. The key module according to claim 1, characterized in that: The first elastic member includes a first spring, and the first spring is sleeved on the first column; the second elastic member includes a second spring, and the second spring is sleeved on the second column.

11. The key module according to claim 1, characterized in that: The connecting portion includes a first annular groove and a second annular groove, wherein the first annular groove is provided at the end of the first column, and the second annular groove is provided at the end of the second column.

12. The key module according to claim 11, characterized in that: The blocking member includes a clamping spring, and the two clamping springs are respectively clamped to the first annular clamping groove and the second annular clamping groove.

13. The key module according to claim 1, wherein: It also includes a switch structure, and the button also includes an extension column. The switch structure is arranged on the side of the button bracket body facing the button body, and the extension column is arranged on the side of the button body facing the switch structure. The extension column is arranged opposite to the switch structure.

14. The key module according to claim 1, wherein: The button bracket further includes a first fixing portion and a second fixing portion fixed to the button bracket body, the first fixing portion is provided with a first fixing hole, the second fixing portion is provided with a second fixing hole, and the button bracket is fixed to the middle frame through the first fixing hole and the second fixing hole.

15. The key module according to claim 14, characterized in that: The opening directions of the first fixing hole and the second fixing hole are parallel to the thickness direction of the middle frame.

16. The key module according to claim 14, characterized in that: The opening directions of the first fixing hole and the second fixing hole are parallel to the width direction of the middle frame.

17. An electronic device, characterized in that: The invention comprises the key module according to any one of claims 1 to 14.

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