Button component

Abstract

The present invention provides a key assembly, the main body of which is composed of three parts: an elastic body, a pressing part and a supporting part. The elastic body is deformed when subjected to force, and the touch function of the key is completed through deformation. The pressing part is responsible for bearing and transmitting the pressing force applied by the user. The supporting part is connected to the elastic body, and the pressing force is transmitted from the elastic body to the supporting part through the connection. The supporting part is subjected to force and deformed, so that the user can feel the reaction force of the elastic body and the supporting part at the same time when pressing the key assembly, so that the key assembly defined in this application can be suitable for occasions with high requirements for key feedback, and by setting different supporting parts to bring different reaction forces to the user, the elastic key can meet the different needs of different occasions, thereby expanding the scope of application of the key assembly, improving product performance, expanding product applicability, simplifying product structure, reducing production costs, and improving product competitiveness.

Description

Technical Field

[0001] The present invention relates to the technical field of keys, and in particular to a key assembly. Background Art

[0002] At present, in the relevant technology, the existing patch-type single-body silicone rubber elastic buttons have a light and soft feel, which is difficult to meet certain occasions with strong requirements for feel, such as in engineering fields such as automobiles and aircraft. In addition, the production process of existing tactile switches involves the assembly of different components, which has high labor costs and material costs, resulting in a high overall cost of tactile switch buttons. At the same time, each component of the existing tactile switch has a height and has matching tolerance requirements with each other. Further reducing the height and size of the tactile switch is greatly limited, and the smaller the size, the more difficult and costly the assembling of the buttons will be. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, a first aspect of the present invention provides a key assembly.

[0005] In view of this, the first aspect of the present invention provides a button assembly, which includes: an elastic body, a pressing part and a supporting part, the pressing part is connected to the elastic body; the supporting part is connected to the elastic body and supported below the pressing part; wherein the supporting part is an elastic supporting part, which undergoes elastic deformation as the pressing part is pressed.

[0006] According to the key assembly provided by the present invention, the main body of the key assembly is composed of three parts: an elastic body, a pressing part and a supporting part. When the user presses the key assembly, the elastic body is deformed by the force, and the touch function of the key is completed through deformation. When the user removes the pressing force, the elastic body automatically returns to the initial non-pressed state by relying on its own elastic stress, thereby realizing the deformation and automatic rebound of the key; the pressing part is connected to the elastic body and is arranged on the top of the elastic body. The pressing part is responsible for bearing and transmitting the pressing force applied by the user. When the user applies pressing force to the key assembly, the pressing part transmits the force to the elastic body through the connection, causing the elastic body to deform; the supporting part is an elastic part, which is connected to the elastic body and is arranged below the elastic body. After assembly, the upper surface of the supporting part is fitted with the lower surface of the pressing part. When the user presses the key assembly, the pressing force applied by the user to the elastic body causes the elastic body to deform, and the deformed elastic body forces the supporting part to deform together through contact. The elastic body and the support part are both elastic parts. Therefore, when the user presses the button assembly and the elastic body and the support part are deformed, the elastic body and the support part will apply their own internal stress after deformation in the form of reaction force to the contact surface pressed by the user, so that when the user presses the button assembly, he can feel the reaction force from the elastic body and the support part at the same time, thereby enhancing the user's tactile feeling when pressing the button assembly, allowing the user to accurately feel the state of the button assembly when operating the button assembly. Therefore, setting the support part can make the button assembly more suitable for occasions with high button feedback requirements, such as automobiles, aircraft and engineering fields. At the same time, by setting different support parts to bring different reaction forces to users, the elastic button can meet the different needs of different users in different occasions, thereby expanding the performance of the button assembly, expanding the scope of application of the button assembly, and playing a technical effect of improving product performance, expanding product applicability, simplifying product structure, reducing production costs, and improving product competitiveness.

[0007] In addition, the key assembly in the above technical solution provided by the present invention may also have the following additional technical features:

[0008] In the above technical solution, preferably, the longitudinal cross-section of the elastic body is arched; the support portion is clamped in the cavity inside the elastic body; or the support portion is in contact with the elastic body; or a local position of the support portion is enclosed inside the elastic body.

[0009] In this technical solution, the cross-section of the elastic body is arched. Compared with cross-sections of other shapes, the arched cross-section has the best pressure resistance. The elastic body is set to a component with an arched cross-section, so that when the user presses the elastic body, the feedback force received is large enough, thereby enhancing the user's tactile feeling when pressing the key assembly to meet user needs. In addition, the elastic body with an arched cross-section deforms more slowly when subjected to pressing pressure, and the feedback deformation force is also relatively stable, making the key assembly more operable and more comfortable. At the same time, the elastic body with an arched interface has usable space inside, forming a cavity so that there is space inside the elastic body to set other structures. During the assembly process, the support part is clamped in the cavity inside the elastic body or the support part and the elastic body are connected. The elastic body is fitted with the elastic body, or the local position of the support part is enclosed inside the elastic body, so that the local area of the support part is in contact with the elastic body. The elastic body and the support part can be connected together by clamping the support part in the cavity inside the elastic body. Similarly, the support part and the elastic body can be fitted together to connect the elastic body and the support part together, so that when the elastic body is deformed by force, the elastic body can transmit the force from the elastic body to the support part through connection or contact, thereby strengthening the feedback force of the button assembly and improving the user's operating feel. The clamping connection method is simple and fast, and does not require the setting of other connecting parts, which is easy to disassemble, and has the technical effect of simplifying the structure, reducing the difficulty of assembly, reducing production costs, and improving product competitiveness.

[0010] In any of the above technical solutions, preferably, the button assembly also includes: a base, which is annular, connected to the elastic body, and located below the elastic body; a solder foot assembly, the solder foot assembly includes a solder foot, a part of the solder foot is embedded in the base, and the other part protrudes from the bottom wall of the base and / or the side wall of the base.

[0011] In this technical solution, a base and a solder foot assembly are also provided on the key assembly. The base is annular and connected to the elastic body. It is specifically arranged below the elastic body. The base is responsible for supporting and fixing the elastic body. The annular base has optimal strength and can withstand the deformation force of the elastic body without deformation, thereby playing a role in fixing the top structure of the elastic assembly, making the elastic assembly more firm and reliable, and achieving the technical effect of improving product reliability and stability; the solder foot assembly includes a solder foot, which is arranged on the base, with one part of the solder foot embedded in the base and the other part protruding from the bottom wall and / or side wall of the base. The solder foot is arranged at the bottom of the entire key assembly to provide a welding surface for the key assembly, so that the key can be accurately and reliably set in the correct installation position. The solder foot protruding from the bottom wall and side wall of the base can make the solder foot plane exposed from the key assembly, ensuring that the solder foot can contact and connect to the installation surface, thereby improving the stability and reliability of the product.

[0012] In any of the above technical solutions, preferably, the elastic body, the pressing portion and the base are an integrated structure.

[0013] In this technical solution, the elastic body, the pressing part and the base are integrally formed. The integral forming can simplify the production and assembly process while ensuring the connection. The integrally formed structure has no connecting surface, has better strength and is not easy to be damaged, thereby achieving the technical effect of reducing production costs, reducing assembly difficulty, improving product reliability and enhancing product competitiveness.

[0014] Specifically, the support part is first placed in a vulcanization mold of the key assembly, and after filling with silicone, the key assembly is vulcanized to vulcanize the silicone on the support part. After the silicone is vulcanized, the elastic body and the pressing part can be formed.

[0015] In any of the above technical solutions, preferably, the number of the welding legs is at least two, and the number of the welding legs is an even number; the supporting portion is a metal supporting portion; and the supporting portion is connected to at least one welding leg.

[0016] In this technical solution, the number of solder legs is at least two, and the number of solder legs is an even number. The even number of solder legs can ensure that each solder leg has a corresponding solder leg, thereby ensuring that the electrical component connected to the key assembly forms a complete circuit; the support part is a metal support part, and the metal material can make the support part conductive, and the metal support part is connected to at least one solder leg, so that the support part and the solder leg connected thereto are easy to connect with the output circuit end of the PCB board. When the elastic component is pressed, the support part is deformed under pressure, and the middle position of the support part contacts one end of the gold finger circuit of the PCB board, so that the gold finger circuit on the PCB board is closed, and a current triggering signal is generated, thereby realizing the circuit connection function, making the elastic key more suitable for the PCB board, and achieving the technical effect of improving product applicability and enhancing product competitiveness.

[0017] In any of the above technical solutions, preferably, part of the welding foot assembly is recessed downward to form the welding foot.

[0018] In this technical solution, part of the solder foot assembly is recessed downward, so that the bottom surface of part of the solder foot assembly moves downward, forming a solder foot protruding from the bottom surface of the solder foot assembly, which facilitates the contact and connection between the solder foot assembly and the circuit board.

[0019] In any of the above technical solutions, preferably, the welding foot assembly further includes a plurality of reinforcing parts, and part of the welding foot assembly protrudes upward to construct a plurality of reinforcing parts, and the plurality of reinforcing parts are respectively arranged on both sides of the welding foot.

[0020] In this technical solution, some areas on both sides of the weld foot in the weld foot assembly are raised upward to form a reinforcement part. The provision of the raised reinforcement part can reserve deformation space for the weld foot during the stamping process, thereby preventing the weld foot assembly from structural collapse during the one-piece molding process of the weld foot. The raised reinforcement part can also help the weld foot resist the force perpendicular to the concave direction of the weld foot during operation, making the weld foot more stable and reliable. At the same time, the reinforcement parts on both sides of the weld foot can also provide deformation space for the weld foot, so that the weld foot will not break when subjected to a large external force, thereby enhancing the strength of the weld foot and improving the stability and reliability of the weld foot assembly.

[0021] In any of the above technical solutions, preferably, the multiple welding legs are symmetrically arranged; the multiple reinforcement parts are symmetrically arranged.

[0022] In this technical solution, multiple welding feet are symmetrically arranged, and the corresponding multiple reinforcement parts are also symmetrically arranged to ensure that two welding feet and two groups of reinforcement parts are relatively arranged on each diameter of the bottom surface of the annular base where the welding feet are arranged, so that the force distribution on the annular base is more reasonable, and the force on the multiple welding feet and the multiple reinforcement parts is more evenly distributed, preventing individual welding feet from being damaged due to uneven force, thereby improving the reliability and stability of the button assembly.

[0023] In any of the above technical solutions, preferably, the solder foot is a solderable solder foot; or a solderable layer is provided on the surface of the solder foot.

[0024] In this technical solution, the material of the solder foot is a solderable conductive material or a solderable conductive layer is provided on the surface of the solder foot, to ensure that the solder foot component in contact with the circuit board can form a complete circuit together with the circuit board, thereby realizing the circuit control function of the key component, making the key component more suitable for the PCB board, and achieving the technical effect of optimizing product performance and improving product practicality.

[0025] In any of the above technical solutions, preferably, the welding foot assembly is an integrated structure.

[0026] In this technical solution, the weld foot assembly is integrally formed, and the weld foot and the reinforcement portion are directly formed on the weld foot assembly, eliminating the connection structure, thereby simplifying the product assembly process and reducing the product production cost; at the same time, there is no connection section in the weld foot assembly with an integrated structure, so that the weld foot assembly will not easily bend or be damaged when subjected to a large external force, thereby achieving the technical effect of increasing the strength of the weld foot assembly and improving the safety and reliability of the product.

[0027] In any of the above technical solutions, preferably, the supporting portion does not protrude from the bottom wall of the welding foot.

[0028] In this technical solution, the support portion does not protrude from the bottom wall of the weld foot, ensuring that the lowest surface of the support portion is higher than the lowest surface of the weld foot, thereby ensuring the reliability of the weld foot loop connection. At the same time, it can also avoid the support portion from interfering with and supporting the weld foot during the assembly process, thereby ensuring the reliability of the connection and achieving the technical effect of improving product stability and reliability.

[0029] In any of the above technical solutions, preferably, at least one bending surface is provided on the arcuate side surface of the support portion.

[0030] In this technical solution, at least one bending surface is provided on the curved surface on the side of the support portion, and the bending direction of the bending surface is approximately parallel to the pressure direction of the support portion. When the support portion is deformed under pressure, a greater elastic deformation can be generated at the bending surface, thereby effectively increasing the overall deformation of the support portion, allowing the user to feel more clearly that the key assembly is pressed, effectively enhancing the tactile feedback effect of the key assembly, and thereby making the key assembly more suitable for workplaces with large feedback requirements, thereby improving product performance, increasing the product's scope of application, and further enhancing the user's usage experience.

[0031] In any of the above technical solutions, preferably, a first light-transmitting hole is provided on the pressing portion, and the opening of the first light-transmitting hole faces the supporting portion; a second light-transmitting hole is provided on the supporting portion, and the second light-transmitting hole is arranged opposite to the first light-transmitting hole.

[0032] In this technical solution, a first light-transmitting hole is provided on the pressing part, and the opening of the first light-transmitting hole is toward the supporting part, so that light can be transmitted from the direction of the supporting part to the pressing part; a second light-transmitting hole is provided on the supporting part, and the second light-transmitting hole is arranged opposite to the first light-transmitting hole, so that the light in the supporting part can be transmitted from the second light-transmitting hole to the first light-transmitting hole. The provision of the first light-transmitting hole and the second light-transmitting hole allows the user to receive light emitted by the light-emitting component inside the key assembly or the light-emitting component on the circuit board, so that the user can judge the current working status of the key assembly by the color and brightness of the light, which is convenient for the user to control the key assembly, thereby improving the practicality of the product, enhancing the user experience, and improving the competitiveness of the product.

[0033] In any of the above technical solutions, preferably, the light-transmitting hole is a through hole or a blind hole.

[0034] In this technical solution, the light-transmitting hole is a through hole or a blind hole. When the light-transmitting hole is a through hole, light can directly pass through the light-transmitting hole and be received by the user; when the light-transmitting hole is a blind hole, the pressing part is a light-transmitting material, and light enters the pressing part through the light-transmitting hole and is emitted after diffuse reflection. In this way, the emitted light is softer and the lighting range is larger, making it easier for users to obtain the working status of the key assembly through light, thereby improving the practicality of the product, enhancing the user experience, and improving the competitiveness of the product.

[0035] In any of the above technical solutions, preferably, a notch is provided on the weld foot, and the notch extends along the width direction of the weld foot.

[0036] In this technical solution, by setting an incision on the solder foot, the internal stress generated by the solder foot during the stamping process can be effectively released after the solder foot is stamped, reducing the deformation of the solder foot assembly, thereby improving the coplanarity of the solder foot and effectively improving the performance of the button assembly.

[0037] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0039] Figure 1 Shows a front view of a key assembly according to one embodiment of the present invention;

[0040] Figure 2 A top view of a key assembly according to an embodiment of the present invention is shown;

[0041] Figure 3 for Figure 2 The cross-sectional view of the key assembly according to one embodiment of the present invention is shown at AA;

[0042] Figure 4 Shows a bottom view of a key assembly according to one embodiment of the present invention;

[0043] Figure 5 A schematic diagram of a key assembly according to another embodiment of the present invention is shown;

[0044] Figure 6 A top view of a solder foot assembly of a key assembly according to an embodiment of the present invention is shown;

[0045] Figure 7 A front view of a solder foot assembly of a key assembly according to an embodiment of the present invention is shown;

[0046] Figure 8 Shows a front view of a key assembly according to yet another embodiment of the present invention;

[0047] Figure 9 A top view of a key assembly according to another embodiment of the present invention is shown;

[0048] Figure 10 for Figure 9 A cross-sectional view of a key assembly according to another embodiment of the present invention taken at position BB is shown;

[0049] Figure 11 A bottom view of a key assembly according to another embodiment of the present invention is shown;

[0050] Figure 12 A top view of a solder foot assembly of a key assembly according to another embodiment of the present invention is shown.

[0051] in, Figures 1 to 12 The corresponding relationship between the reference numerals and component names is as follows:

[0052] 1 elastic body, 2 pressing portion, 22 first light transmission hole, 3 supporting portion, 32 second light transmission hole, 34 bending surface, 4 base, 5 solder foot assembly, 52 solder foot, 522 notch, 54 reinforcement portion. DETAILED DESCRIPTION

[0053] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0054] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0055] Refer to the following Figures 1 to 12 The key assembly according to some embodiments of the present invention is described.

[0056] In the first embodiment of the present invention, Figure 1 , Figure 2 , Figure 8 and Figure 9 As shown, the first aspect of the present invention provides a key assembly, characterized in that the key assembly includes: an elastic body 1, a pressing part 2 and a supporting part 3, the pressing part 2 is connected to the elastic body 1; the supporting part 3 is connected to the elastic body 1, and is supported below the pressing part 2; wherein the supporting part 3 is an elastic supporting part, which undergoes elastic deformation as the pressing part 2 is pressed.

[0057] According to the key assembly provided by the present invention, the main body of the key assembly is composed of an elastic body 1, a pressing part 2 and a supporting part 3. When the user presses the key assembly, the elastic body 1 is deformed by the force, and the touch function of the key is completed by the deformation. When the user removes the pressing force, the elastic body 1 automatically returns to the initial non-pressed state by relying on its own elastic stress, thereby realizing the deformation and automatic rebound of the key; the pressing part 2 is connected to the elastic body 1 and is arranged on the top of the elastic body 1. The pressing part 2 is responsible for bearing and transmitting the pressing force applied by the user. When the user applies pressing force to the key assembly, the pressing part 2 transmits the force to the elastic body 1 through the connection, causing the elastic body 1 to deform; the supporting part 3 is an elastic supporting part, which is connected to the elastic body 1 and is arranged below the elastic body 1. After assembly is completed, the upper surface of the supporting part 3 is in contact with the lower surface of the pressing part 2. When the user presses the key assembly, the pressing force applied by the user to the elastic body 1 causes the elastic body 1 to deform, and the deformed elastic body 1 forces the supporting part 3 to deform by contact 3 is deformed together. Because both the elastic body 1 and the support part 3 are elastic, when the user presses the key assembly to deform the elastic body 1 and the support part 3, the elastic body 1 and the support part 3 will apply their own internal stress after deformation in the form of reaction force to the contact surface pressed by the user, so that when the user presses the key assembly, the user can feel the reaction force from the elastic body 1 and the support part 3 at the same time, thereby enhancing the user's tactile feeling when pressing the key assembly, allowing the user to accurately feel the state of the key assembly when operating the key assembly. Therefore, providing the support part 3 can make the key assembly more suitable for occasions with high key feedback requirements, such as automobiles, aircraft and engineering fields. At the same time, by providing different support parts 3 to bring different reaction forces to the user, the elastic key can meet the different needs of different users in different occasions, thereby expanding the performance of the key assembly, expanding the scope of application of the key assembly, and playing a technical effect of improving product performance, expanding product applicability, simplifying product structure, reducing production costs, and improving product competitiveness.

[0058] In one embodiment of the present invention, preferably, Figure 3 and Figure 10 As shown, the longitudinal section of the elastic body 1 is arched; the support portion 3 is clamped in the cavity inside the elastic body 1; or the support portion 3 is in contact with the elastic body 1; or a part of the support portion 3 is enclosed inside the elastic body 1.

[0059] In this embodiment, the cross-section of the elastic body 1 is arched. Compared with cross-sections of other shapes, the arched cross-section has the best pressure resistance. The elastic body 1 is set as a component with an arched cross-section, so that when the user presses the elastic body 1, the feedback force received is large enough, thereby enhancing the user's tactile feeling when pressing the key assembly to meet user needs. In addition, the elastic body 1 deforms more slowly when subjected to pressing pressure, and the feedback deformation force is also relatively stable, making the key assembly more operable and more comfortable. At the same time, there is usable space inside the elastic body 1 to form a cavity so that there is space inside the elastic body 1 to set other structures. During the assembly process, the support part 3 is snapped into the cavity inside the elastic body 1 or the support part 3 fits with the elastic body 1, or The local position of the support part 3 is enclosed inside the elastic body 1, so that the local area of the support part 3 is in contact with the elastic body 1. By snapping the support part 3 into the cavity inside the elastic body 1, the elastic body 1 and the support part 3 can be connected together. Similarly, by fitting the support part 3 with the elastic body 1, the elastic body 1 and the support part 3 can be connected and matched together. When the elastic body 1 is deformed by force, the elastic body 1 can transfer the force from the elastic body 1 to the support part 3 through connection or contact, thereby strengthening the feedback force of the key assembly and improving the user's operating feel. The snap connection method is simple and fast, and does not require the setting of other connecting parts, which is easy to disassemble, thereby simplifying the structure, reducing assembly difficulty, reducing production costs, and improving product competitiveness.

[0060] In one embodiment of the present invention, preferably, Figure 4 and Figure 11 As shown, the button assembly also includes: a base 4, which is annular, connected to the elastic body 1, and located below the elastic body 1; a solder foot assembly 5, which includes a solder foot 52, a part of which is embedded in the base 4, and the other part protrudes from the bottom wall of the base 4 and / or the side wall of the base 4.

[0061] In this embodiment, the button assembly is also provided with a base 4 and a welding foot assembly 5. The base 4 is annular and connected to the elastic body 1. It is specifically arranged below the elastic body 1. The base 4 is responsible for supporting and fixing the elastic body 1. The base 4 has optimal strength and can withstand the deformation force of the elastic body 1 without deformation, thereby playing a role in fixing the top structure of the elastic assembly, making the elastic assembly more firm and reliable, and achieving the technical effect of improving product reliability and stability; the welding foot assembly 5 includes a welding foot 52, which is arranged on the base 4. A part of the welding foot 52 is embedded in the base 4, and the other part protrudes from the bottom wall of the base 4 and / or the side wall of the base 4. The welding foot 52 is arranged at the bottom of the entire button assembly, providing a welding surface for the button assembly, so that the button can be accurately and reliably set in the correct installation position. The welding foot 52 protrudes from the bottom wall and side wall of the base 4, so that the plane of the welding foot 52 protrudes from the button assembly, ensuring that the welding foot 52 can contact and connect to the installation surface, thereby improving the stability and reliability of the product.

[0062] In one embodiment of the present invention, preferably, Figure 3 and Figure 10 As shown, the elastic body 1, the pressing portion 2 and the base 4 are an integrated structure.

[0063] In this embodiment, the elastic body 1, the pressing portion 2 and the base 4 are integrally formed. The integral forming can simplify the production and assembly process while ensuring the connection. The integrally formed structure has no connecting surface, has better strength and is not easy to be damaged, thereby achieving the technical effect of reducing production costs, reducing assembly difficulty, improving product reliability, and improving product competitiveness.

[0064] Specifically, the support part 3 is first placed in the vulcanization mold of the key assembly, and after filling with silicone, the key assembly is vulcanized to vulcanize the silicone on the support part 3. After the silicone is vulcanized, the elastic body 1 and the pressing part 2 can be formed.

[0065] In one embodiment of the present invention, preferably, Figure 4 and Figure 11 As shown, the number of the welding legs 52 is at least two, and the number of the welding legs 52 is an even number; the support portion 3 is a metal support portion; and the support portion 3 is connected to at least one welding leg 52 .

[0066] In this embodiment, the number of solder pins 52 is at least two, and the number of solder pins 52 is an even number. The even number of solder pins 52 ensures that each solder pin 52 has a corresponding solder pin 52, thereby ensuring that the electrical components connected to the key assembly form a complete circuit; the support part 3 is a metal support part, and the metal material can make the support part 3 conductive, and the metal support part is connected to at least one solder pin 52, so that the support part 3 and the solder pin 52 connected thereto are convenient for connection with the output circuit end of the PCB board. When the elastic component is pressed, the support part 3 is deformed under pressure, and the middle position of the support part 3 contacts one end of the gold finger circuit of the PCB board, so that the gold finger circuit on the PCB board is closed, and a current starting signal is generated, thereby realizing the function of circuit connectivity, making the elastic key more suitable for the PCB board, and achieving the technical effect of improving product applicability and enhancing product competitiveness.

[0067] In one embodiment of the present invention, preferably, Figure 6 and Figure 7 As shown, part of the solder foot assembly 5 is recessed downward to form a solder foot 52 .

[0068] In this embodiment, part of the solder foot assembly 5 is recessed downward, so that the bottom surface of part of the solder foot assembly 5 moves downward, forming a solder foot 52 protruding from the bottom surface of the solder foot assembly 5, which facilitates the contact and connection between the solder foot assembly 5 and the circuit board.

[0069] In one embodiment of the present invention, preferably, the welding foot assembly 5 further includes a plurality of reinforcing portions 54 , and a portion of the welding foot assembly 5 protrudes upward to construct the plurality of reinforcing portions 54 , and the plurality of reinforcing portions 54 are respectively arranged on both sides of the welding foot 52 .

[0070] In this embodiment, partial areas on both sides of the weld foot 52 in the weld foot assembly 5 are raised upward to form a reinforcement portion 54. The raised reinforcement portion 54 can help the weld foot 52 resist the force perpendicular to the recessed direction of the weld foot 52 during operation, making the weld foot 52 more stable and reliable. At the same time, the reinforcement portions 54 on both sides of the weld foot 52 can also provide deformation space for the weld foot 52, so that the weld foot 52 will not break when subjected to a large external force, thereby enhancing the strength of the weld foot 52 and improving the stability and reliability of the weld foot assembly 5.

[0071] In one embodiment of the present invention, preferably, Figure 4 and Figure 11 As shown, the plurality of welding legs 52 are symmetrically arranged; the plurality of reinforcing portions 54 are symmetrically arranged.

[0072] In this embodiment, the plurality of welding feet 52 are symmetrically arranged, and the corresponding plurality of reinforcement parts 54 are also symmetrically arranged, ensuring that two welding feet 52 and two groups of reinforcement parts 54 are relatively arranged on each diameter of the bottom surface of the base 4 where the welding feet 52 are arranged, so that the force distribution on the base 4 is more reasonable, and the force on the plurality of welding feet 52 and the plurality of reinforcement parts 54 is more evenly distributed, thereby preventing the phenomenon of individual welding feet 52 being damaged due to uneven force, thereby improving the reliability and stability of the button assembly.

[0073] In one embodiment of the present invention, preferably, the solder foot 52 is a solderable solder foot; or a solderable layer is provided on the surface of the solder foot 52 .

[0074] In this embodiment, the material of the solder foot 52 is a conductive material with solderability or a conductive layer with solderability is provided on the surface of the solder foot 52, so as to ensure that the solder foot component 5 in contact with the circuit board can form a complete loop together with the circuit board, thereby realizing the circuit control function of the key component, making the key component more suitable for the PCB board, and achieving the technical effect of optimizing product performance and improving product practicality.

[0075] In one embodiment of the present invention, preferably, Figure 6 and Figure 7 As shown, the solder foot assembly 5 is an integrated structure.

[0076] In this embodiment, the welding foot assembly 5 is integrally formed, and the welding foot 52 and the reinforcement portion 54 are directly formed on the welding foot assembly 5, eliminating the connection structure, thereby simplifying the assembly process of the product and reducing the production cost of the product; at the same time, there is no connection section in the welding foot assembly 5 of the one-piece structure, so that the welding foot assembly 5 will not easily bend or be damaged when subjected to a large external force, thereby achieving the technical effect of increasing the strength of the welding foot assembly 5 and improving the safety and reliability of the product.

[0077] In one embodiment of the present invention, preferably, Figure 3 and Figure 10 As shown, the support portion 3 does not protrude from the bottom wall of the welding foot 52 .

[0078] In this embodiment, the support portion 3 does not protrude from the bottom wall of the weld foot 52, ensuring that the lowest surface of the support portion is higher than the lowest surface of the weld foot, thereby ensuring the reliability of the weld foot loop connection. At the same time, it can also avoid the support portion from interfering with and supporting the weld foot during the assembly process, thereby ensuring the reliability of the connection and achieving the technical effect of improving product stability and reliability.

[0079] In one embodiment of the present invention, preferably, Figure 5 As shown, at least one bending surface 34 is provided on the arc-shaped side surface of the support portion 3 .

[0080] In this embodiment, at least one bending surface 34 is provided on the curved surface on the side of the support portion 3, and the bending direction of the bending surface 34 is approximately parallel to the pressure direction of the support portion 3. When the support portion 3 is deformed under pressure, a greater elastic deformation can be generated at the bending surface 34, thereby effectively increasing the overall deformation of the support portion 3, allowing the user to feel more clearly that the button assembly is pressed, effectively enhancing the tactile feedback effect of the button assembly, and making the button assembly more suitable for work environments with large feedback requirements, thereby achieving the technical effect of improving product performance and increasing the scope of application of the product, and further improving the user's usage experience.

[0081] In one embodiment of the present invention, preferably, Figure 10 As shown, the pressing portion 2 is provided with a first light-transmitting hole 22 , the opening of the first light-transmitting hole 22 faces the supporting portion 3 ; the supporting portion 3 is provided with a second light-transmitting hole 32 , the second light-transmitting hole 32 is arranged opposite to the first light-transmitting hole 22 .

[0082] In this embodiment, a first light-transmitting hole 22 is provided on the pressing part 2, and the opening of the first light-transmitting hole 22 faces the supporting part 3, so that light can be transmitted from the direction of the supporting part 3 to the pressing part 2; a second light-transmitting hole 32 is provided on the supporting part 3, and the second light-transmitting hole 32 is arranged opposite to the first light-transmitting hole 22, so that the light in the supporting part 3 can be transmitted from the second light-transmitting hole 32 to the first light-transmitting hole 22. The provision of the first light-transmitting hole 22 and the second light-transmitting hole 32 allows the user to receive light emitted by the light-emitting component inside the key assembly or the light-emitting component on the circuit board, so that the user can judge the current working status of the key assembly by the color and brightness of the light, which is convenient for the user to control the key assembly, thereby improving the practicality of the product, enhancing the user experience, and improving the competitiveness of the product.

[0083] In one embodiment of the present invention, preferably, Figure 10 As shown, the light-transmitting hole is a through hole or a blind hole.

[0084] In this embodiment, the light-transmitting hole is a through hole or a blind hole. When the light-transmitting hole is a through hole, light can directly pass through the light-transmitting hole and be received by the user; when the light-transmitting hole is a blind hole, the pressing part 2 is made of a light-transmitting material, and light enters the pressing part 2 through the light-transmitting hole and is emitted after diffuse reflection. In this way, the emitted light is softer and has a larger illumination range, making it easier for users to obtain the working status of the key assembly through light, thereby improving the practicality of the product, enhancing the user experience, and improving the competitiveness of the product.

[0085] In one embodiment of the present invention, preferably, Figure 12 As shown, a notch 522 is provided on the solder foot 52 , and the notch 522 extends along the width direction of the solder foot 52 .

[0086] In this embodiment, by setting a notch 522 on the solder foot 52, the internal stress generated by the solder foot 52 during the stamping process can be effectively released after the solder foot 52 is stamped, thereby reducing the deformation of the solder foot assembly 5, thereby improving the coplanarity of the solder foot 52 and effectively improving the performance of the button assembly.

[0087] In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise expressly defined, the orientations or positional relationships indicated by the terms "upper" and "lower" are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. The terms "connect," "install," and "fix" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0088] In the description of the present invention, the terms "one embodiment," "some embodiments," "specific embodiments," etc., mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0089] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A key assembly, characterized in that: include: elastic body; a pressing portion connected to the elastic body; a supporting portion connected to the elastic body and supported below the pressing portion; Wherein, the supporting portion is an elastic supporting portion, which undergoes elastic deformation as the pressing portion is pressed; The longitudinal cross-section of the elastic body is arched; The support portion is clamped in the cavity inside the elastic body; A welding foot assembly, wherein the welding foot assembly includes a welding foot; The support portion is a metal support portion; The support portion is connected to at least one of the welding legs; The welding foot assembly further includes a plurality of reinforcing parts, and a portion of the welding foot assembly protrudes upward to form the plurality of reinforcing parts, and the plurality of reinforcing parts are respectively arranged on both sides of the welding foot; At least one bending surface is provided on the arc-shaped side surface of the support portion; The pressing portion is provided with a first light-transmitting hole, the opening of the first light-transmitting hole faces the supporting portion; The support portion is provided with a second light-transmitting hole, which is arranged opposite to the first light-transmitting hole, so that light in the support portion can be transmitted from the second light-transmitting hole to the first light-transmitting hole; The button assembly further includes a base, which is annular and connected to the elastic body and located below the elastic body; A portion of the welding foot is embedded in the base, and another portion protrudes from the bottom wall and the side wall of the base; Part of the welding foot assembly is recessed downward to form the welding foot; The bottom surface of a part of the solder foot assembly moves downward to form the solder foot protruding from the bottom surface of the solder foot assembly; The support portion does not protrude from the bottom wall of the welding foot; The welding foot is provided with a notch, and the notch extends along the width direction of the welding foot; The first light-transmitting hole is a blind hole; The pressing portion is made of a light-transmitting material, and light enters the pressing portion through the first light-transmitting hole and is emitted after diffuse reflection.

2. The key assembly according to claim 1, wherein: The elastic body, the pressing portion and the base are an integrated structure.

3. The key assembly according to claim 1, wherein: The number of the welding feet is at least two, and the number of the welding feet is an even number.

4. The key assembly according to claim 1, wherein: The plurality of welding feet are symmetrically arranged; The plurality of reinforcement parts are symmetrically arranged.

5. The key assembly according to claim 1, wherein: The welding foot is a welding foot with weldability; or A solderable layer is provided on the surface of the solder foot.

6. The key assembly according to claim 1, wherein: The welding foot assembly is an integrated structure.

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