Button switch

Abstract

The invention discloses a button switch, and aims to solve the problems that the internal space of a conventional button switch is limited, a circuit board is inconvenient to install, and the lightweight design is limited. By adopting the design that the detachable sleeve is assembled with the base, the internal space layout is optimized and the like, efficient installation and sufficient internal space reservation of the circuit board are successfully realized. Meanwhile, the reliable performance of the switch is ensured by the stable locking block and crochet hook structure, and the shifting seat is effectively prevented from shifting by the matching of the convex block and the guide area. In addition, a flexible indication function is also integrated, and the visual indication of the button switch state is realized through the combination of the light source piece and the light guide structure. In conclusion, according to the button switch provided by the invention, the space utilization is optimized, the lightweight design is realized, the convenience of installation, the stability of the switch and the convenience of use are also improved, and remarkable technical progress and user experience improvement are brought to the field of button switches.

Description

Technical Field

[0001] The invention relates to the technical field of switch devices, and in particular to a push button switch. Background Art

[0002] In the prior art, the design of push button switches often faces the problem of limited internal space. In the traditional push button switch structure, the hook is usually set at the bottom of the base, which is particularly inconvenient when a circuit board needs to be installed. For example, in a push button switch disclosed in the Chinese utility model patent with publication number CN212625278U, the lock hook 6 is set on the base 44 through the block 442. This is a traditional push button switch structure. When a circuit board 7 needs to be further set, it can only be mounted on the peach heart lock frame 5.

[0003] In addition, in the prior art, in order to install the circuit board, not only is it necessary to plan additional longitudinal space for installation, but also to open a hole on the circuit board to prevent interference with the movement trajectory of the button switch. Such a design not only makes the space of the circuit board cramped, but also makes the internal space allocation of the button switch more crowded, which is not conducive to heat dissipation. In addition, if you try to install the circuit board by adding modules, the volume of the button switch will often increase, which is contrary to the trend of lightweight design. Therefore, there is an urgent need for a solution that can optimize the internal space layout, facilitate the installation of the circuit board, and does not affect the lightweight design of the button switch. Summary of the invention

[0004] 1. Technical issues to be resolved In order to solve the above problems, the present invention proposes a push button switch, which aims to solve the problem that the internal design space of the push button switch in the prior art is cramped and not conducive to heat dissipation.

[0005] (II) Technical solution A push button switch of the present invention comprises: The base has a locking block extending upward, a cavity is provided at the bottom of the base, and a heart-shaped lock is provided on the locking block; A sleeve, detachably arranged on the base; A movable seat is located above the base, the movable seat is movably arranged in the sleeve, and a crochet hook is also clamped on the top of the movable seat; A hook needle, comprising a connecting portion and a locking hook portion, wherein the hook needle can move along with the movement of the movable seat, and the locking hook portion is used to cooperate with the peach heart lock; A limiting portion is provided on the top of the movable seat, and the connecting portion is clamped in the limiting portion to limit the vertical position of the crochet hook. An elastic member is also provided between the movable seat and the base to provide an upward force for resetting the movable seat; A circuit board is arranged in the cavity, and a light source is coupled to the circuit board to indicate the action state of the push button switch.

[0006] In the present invention, the heart-shaped lock is arranged on the outer side of the lock block, a plurality of protrusions are arranged on the lower part of the bracket, a guide area is arranged between two adjacent protrusions, and the lock block is arranged in the guide area to prevent the movable seat from moving circumferentially.

[0007] In the present invention, the connecting portion and the locking hook portion are arranged perpendicular to each other, and the connecting portion and the locking hook portion are an integrated structure; The hook hook also includes a clamping portion for forming a horizontal clamping force on the upper portion of the moving seat.

[0008] In the present invention, the clamping portion includes a first bending portion and a second bending portion, a first clamping arm is formed between the first bending portion and the second bending portion, and a second clamping arm is formed between the second bending portion and the locking hook portion; An included angle between the first clamping arm and the second clamping arm is less than or equal to 90°.

[0009] In the present invention, a first groove is provided at the bottom of the protrusion, a second groove corresponding to the first groove is provided on the base, one end of the elastic member is provided in the first groove, and the other end is provided in the second groove; The first groove is located directly above the second groove.

[0010] In the present invention, the number of the first grooves is at least two, and the two first grooves are respectively arranged on the two diagonally arranged protrusions, and the number and positions of the second grooves correspond to the number and positions of the first grooves.

[0011] In the present invention, it also includes a housing and a light guide structure, the light guide structure includes a bracket and a pressing portion, the bracket is detachably arranged on the movable seat, the bracket is sleeved with a sealing member, and the bottom of the sealing member abuts against the top of the sleeve; The outer side wall of the sleeve is provided with a plurality of convex ribs, and the shell is interference fit outside the sleeve via the convex ribs.

[0012] In the present invention, a relief portion is further provided on the connecting portion, and the relief portion is bent toward one side of the connecting portion and is used for installing the vertical light source component.

[0013] In the present invention, a clearance hole is further provided on the connecting portion, and the light source component passes through the clearance hole and is arranged above the connecting portion.

[0014] In the present invention, at least two stationary contact pieces are further provided on the base, and a stationary contact point is provided on the top of the stationary contact piece. A moving contact piece is inserted on the movable seat, and moving contacts cooperating with the stationary contacts are provided at both ends of the moving contact piece. A conductive pin is also provided at the bottom of the base, and one end of the conductive pin passes through the bottom of the base and is coupled to the circuit board.

[0015] (III) Beneficial effects Compared with the prior art, the present invention has the following beneficial effects: The present invention cleverly clamps the circuit board in the cavity of the base, leaving sufficient space between the base and the movable base to facilitate the installation of electronic components on the circuit board. This design not only avoids interference between the circuit board and the movement trajectory of the button switch, but also greatly improves the utilization rate of the internal space.

[0016] The present invention adopts a detachable sleeve and base assembly and optimizes the internal structure design. The present invention successfully realizes the installation of the circuit board without increasing the volume of the button switch. This not only meets the functional requirements, but also conforms to the concept of lightweight design.

[0017] The present invention enables the heat inside the push button switch to be dissipated more effectively through optimized internal space layout, thereby reducing the problem of poor heat dissipation caused by crowded space. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is the overall structural diagram of the push button switch; Figure 2 The figure is a schematic diagram of the three-dimensional structure of the push button switch (housing omitted); Figure 3 is a schematic diagram of the connection structure of the light guide structure; Figure 4 Schematic diagram of the internal structure of a push button switch; Figure 5 is a schematic diagram of the three-dimensional structure of the base; Figure 6 It is a schematic diagram of the bottom structure of the mobile seat; Figure 7 It is a schematic diagram of the three-dimensional structure of the crochet hook; Figure 8 It is a schematic diagram of the exploded structure of the bracket and the pressing part; Fig. 9 Schematic diagram of the top view of the crochet hook in Example 2; Fig.10 It is a schematic diagram of the three-dimensional structure of the crochet hook in Example 3.

[0020] 10. base, 101. second groove, 11. lock block, 111. heart lock, 12. cavity, 20. movable seat, 21. moving contact piece, 22. moving contact point, 23. limiter, 231. protrusion, 232. chamfer, 24. protrusion, 241. first groove, 242. guide area, 30. sleeve, 31. housing, 32. seal, 33. convex rib, 40. light guide structure, 41 , bracket, 42, pressing part, 50, static contact piece, 51, static contact point, 52, conductive pin, 53, elastic member, 60, hook needle, 61, connecting part, 611, make way hole, 612, make way part, 62, lock hook part, 63, clamping part, 631, first bending part, 632, second bending part, 633, first clamping arm, 634, second clamping arm, 70, circuit board, 71, light source part. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1

[0023] like Figure 1-Figure 3 The push button switch shown is intended to solve the problem of limited internal space of the push button switch in the prior art. The hook 60 of the traditional push button switch is often set at the bottom of the base 10, which means that if a circuit board 70 needs to be installed, a certain longitudinal space needs to be planned to install the circuit board 70, and a hole needs to be opened on the circuit board 70 to prevent interference with the movement trajectory of the push button switch. Not only does it cause the space of the circuit board 70 to be cramped, but the internal space allocation of the push button switch is also more crowded, which is not conducive to heat dissipation. If the circuit board 70 needs to be installed by adding modules, the volume of the push button switch will also increase, and a lightweight design cannot be achieved.

[0024] Specifically, the push button switch of the present invention includes a base 10 and a sleeve 30 detachably arranged on the base 10, wherein the detachable installation method includes a threaded connection, a pin connection, a key connection, a snap connection, etc. In this embodiment, the base 10 and the sleeve 30 are assembled in a snap-fit ​​manner, that is, four card slots are provided at the lower part of the sleeve 30, and a card block matching the card slots is provided on the outer side of the base 10, and the sleeve 30 is snap-fitted to the base 10 by being fitted from top to bottom. In particular, as long as the assembly relationship between the sleeve 30 and the base 10 can be achieved, the card slots are arranged on the outer side of the base 10, and the card blocks are arranged on the inner side wall of the sleeve 30.

[0025] Further, such as Figure 4-Figure 7 As shown, the push button switch of the present invention also includes a movable seat 20, which can move up and down in the sleeve 30. In this embodiment, in order to realize the switch function and save internal space for installing the circuit board 70, a locking block 11 arranged vertically upward is provided on the base 10. In this embodiment, the number of locking blocks 11 is two, and the two locking blocks 11 are arranged opposite to each other, that is, the two are parallel to each other. A heart lock 111 is provided on the outer side of the two locking blocks 11. In particular, the outer side of the locking blocks 11 can be selected according to actual needs to select whether to set the heart lock 111. That is, in actual use, the hook 60 has a difference between a single-sided hook 60 and a double-sided hook 60. According to the single-sided or double-sided hook 60 used in a specific scene, it is judged whether two locking blocks 11 need to be set or whether corresponding heart locks 111 need to be set on the outer sides of the two locking blocks 11.

[0026] A cavity 12 is provided in the middle of the base 10, that is, the cavity 12 is provided between the two locking blocks 11, and the cavity 12 is surrounded by the locking blocks 11 and the convex wall of the base 10. A circuit board 70 is mounted in the cavity 12, and the circuit board 70 is provided with a control circuit related to a button switch. A large space is provided between the circuit board 70 and the movable seat 20 to facilitate the placement of electronic components on the circuit board 70.

[0027] Specifically, the button switch of the present invention is also clamped with a hook 60 on the top of the moving seat 20, and the hook 60 includes at least one locking hook portion 62 and a connecting portion 61 equipped with a limiting structure, and the connecting portion 61 is a cylindrical structure. The top of the moving seat 20 is provided with a limiting portion 23 for clamping the connecting portion 61 of the hook 60, and the connecting portion 61 and the limiting portion 23 are arranged perpendicular to each other, that is, the connecting portion 61 is a horizontal structure, the hook 60 portion is a vertical structure, and there is a bent hook at the end of the hook 60 portion for matching the heart lock 111. In particular, in this embodiment, the connecting portion 61 can be fixed by a slot or a buckle, that is, the hook 60 is clamped into the limiting portion 23 from top to bottom. As the moving seat 20 is forced to move downward, the locking hook portion 62 of the hook 60 extends into the heart lock 111 and cooperates with it to realize the closing and unlocking actions of the button switch. This process is a known technical solution and will not be repeated here.

[0028] The middle part of the movable seat 20 is a hollow structure, that is, it has openings at the top and bottom, and the limiting part 23 is set at the top of the movable seat 20. When two card slots are used to clamp the hook needle 60, the card slots are respectively set on the top side walls of the movable seat 20, and the card slots include chamfers 232 and protrusions 231 from top to bottom. The chamfer 232 is used to facilitate the insertion of the connecting part 61 into the card slot, and the function of the protrusion 231 is to form a limiting structure with the space below, so that the connecting part 61 is limited below the protrusion 231.

[0029] Specifically, the push button switch of the present invention is provided with four evenly distributed protrusions 24 at the bottom of the movable seat 20, the four protrusions 24 are distributed in a circle, and the outer surface of the protrusions 24 is arc-shaped, and the curvature thereof is close to or the same as the curvature of the inner surface of the sleeve 30, wherein a guide area 242 is formed between two adjacent protrusions 24. When the movable seat 20 is arranged in the sleeve 30, the locking block 11 is placed in the guiding area 242 from bottom to top, and when the movable seat 20 moves downward, the locking block 11 is located in the guiding area 242 to prevent the movable seat 20 from rotating and deviating in the circumferential direction.

[0030] In order to provide an upward reset force to the mobile seat 20 and better realize the switch function again, a first groove 241 is also provided at the bottom of the protrusion 24, and a second groove 101 with an opening facing upward is provided on the base 10. The second groove 101 is arranged opposite to the first groove 241, that is, the first groove 241 and the second groove 101 are located on the same axis. An elastic member 53 is arranged between the mobile seat 20 and the base 10, and the two ends of the elastic member 53 are respectively arranged in the first groove 241 and the second groove 101. In this embodiment, the elastic member 53 can be a cylindrical compression spring, or an elastic material with a columnar structure, such as a sponge column, a silicone column, a rubber column, etc. In particular, in order to make the force on the mobile seat 20 more uniform, the first groove 241 is respectively arranged at the bottom of the protrusion 24 at two diagonals, and the second groove 101 is also arranged diagonally, that is, it is arranged oppositely on the base 10.

[0031] Furthermore, two L-shaped static contact pieces 50 and conductive pins 52 are provided on the base 10, and a static contact point 51 is provided on the top of the static contact piece 50. A moving contact piece 21 is provided on the moving seat 20, and the moving contact piece 21 is inserted and arranged in the moving seat 20, and moving contacts 22 are also provided at the bottom of both ends of the moving contact piece 21. When the moving seat 20 moves downward, it can drive the moving contact piece 21 to move downward and make the moving contact point 22 and the static contact 51 abut against each other, and the button switch is in the conducting state at this time. One end of the conductive pin 52 extends from the outside of the base 10 to the inside and is inserted into the circuit board 70 for electrical connection, which is mainly used to connect with an external wire to conduct the control circuit of the button switch.

[0032] Specifically, Figure 3 , Figure 8 As shown, the push button switch of the present invention also has a light-guiding structure 40 and a cylindrical shell 31. A buckle structure is provided on the upper part of the movable seat 20, and the light-guiding structure 40 is mounted on the top of the movable seat 20 by means of the buckle. It should be noted that one side surface of the buckle is an adjacent surface of one side surface of the hook 60, that is, the planes where the two are located are arranged perpendicular to each other. The outer wall of the sleeve 30 is provided with a plurality of evenly distributed ribs 33, and the shell 31 is sleeved on the sleeve 30 through the ribs 33. At the same time, the shell 31 can cover the sleeve 30 and the light-guiding structure 40, that is, the shell 31 and the sleeve 30 are interference fit. The light-guiding structure 40 includes a bracket 41 and a pressing portion 42. The bracket 41 is arranged on the movable seat 20 by means of the buckle, and the pressing portion 42 is inserted into the bracket 41. The material of the bracket 41 and the pressing part 42 can be polycarbonate, PVC, polystyrene, fluoroplastic, glass, etc. In particular, the material of the pressing part 42 can also be selected as metal material, that is, the texture of the material can be further processed and improved under the premise of giving up light transmittance.

[0033] In particular, according to the needs of the user, the light source component 71 can be electrically connected to the circuit board 70 to indicate the on / off state of the button switch or the external circuit, that is, the action state indication of the button switch, such as on, off, abnormal and other signals, is used to remind the user through different light colors or flashing logic. The light source component 71 can be a SMD LED lamp, a matrix lamp, etc. A hollow through hole is provided in the middle of the moving contact piece 21, and the light of the light source component 71 passes through the through hole and the opening of the moving seat 20 to transmit the light upward, and is mapped on the button switch through the light guide structure 40 for easy viewing by the user.

[0034] Specifically, a seal 32 is further provided on the light guide structure 40 , one end of which is sleeved on the light guide structure 40 , and the other end is in contact with the top wall of the sleeve 30 . The seal 32 can move with the movement of the light guide structure 40 and the movable seat 20 to maintain dynamic sealing.

[0035] Example 2

[0036] like Fig. 9 As shown, based on the scheme of embodiment 1, the difference from embodiment 1 is that since the connecting portion 61 of the hook needle 60 is arranged at the opening, the button switch cannot be installed with a vertical LED lamp or light-emitting diode. In order to eliminate this interference. In this embodiment, a yielding portion 612 is also provided on the connecting portion 61 of the hook needle 60. The shape of the yielding portion 612 can be semicircular, bridge-shaped, V-shaped, polygonal, etc., that is, the vertical light source 71 is given way through the setting of the bending portion. This can make the light source closer to the light guide structure 40, and the light transmission effect is better.

[0037] Example 3

[0038] like Fig.10 As shown, the difference from the technical solution of Example 2 is that in Example 2, a single-side bending is used to make way, while in this embodiment, a hollow making way hole 611 is provided at the connecting portion 61, and the light source component 71 passes through the making way hole 611 and is arranged above the connecting portion 61. The technical solution of this embodiment is easier to process and has higher economic benefits.

[0039] Example 4

[0040] like Figure 7 As shown, on the basis of any technical solution in Embodiment 1 to Embodiment 3, a clamping portion 63 may be further provided between the connecting portion 61 and the hook portion 60. The clamping portion 63 is formed by bending two sections, that is, the clamping portion 63, the connecting portion 61, and the locking hook portion 62 are all integrated structures, and the angle of the clamping portion 63 is between 90° and 60°.

[0041] Specifically, the clamping portion 63 includes a first bending portion 631, a second bending portion 632, a first clamping arm 633 and a second clamping arm 634. The first clamping arm 633 is arranged between the first bending portion 631 and the second bending portion 632, and the second clamping arm 634 is arranged between the second bending portion 632 and the lock hook portion 62. The angle of the clamping portion 63 is the angle between the first clamping arm 633 and the second clamping arm 634. The clamping force is related to the angle, that is, the smaller the angle, the greater the clamping force of the second bending portion 632 on the movable seat 20.

[0042] The above-described embodiments are merely descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary persons in the art to the technical solution of the present invention should fall within the protection scope of the present invention, and the technical contents for which protection is sought in the present invention have been fully recorded in the claims.

Claims

1. A push button switch, characterized in that: The push button switch comprises: The base has a locking block extending upward, a cavity is provided at the bottom of the base, and a heart-shaped lock is provided on the locking block; A sleeve, detachably arranged on the base; A movable seat is located above the base, the movable seat is movably arranged in the sleeve, and a crochet hook is also clamped on the top of the movable seat; A hook needle, comprising a connecting portion and a locking hook portion, wherein the hook needle can move along with the movement of the movable seat, and the locking hook portion is used to cooperate with the peach heart lock; A limiting portion is provided on the top of the movable seat, and the connecting portion is clamped in the limiting portion to limit the vertical position of the crochet hook. An elastic member is also provided between the movable seat and the base to provide an upward force for resetting the movable seat; A circuit board is arranged in the cavity, and a light source is coupled to the circuit board to indicate the action state of the push button switch.

2. The push button switch according to claim 1, characterized in that: The push button switch also has a light guide structure, which includes a bracket and a pressing portion; The heart lock is arranged on the outer side of the lock block, a plurality of protrusions are arranged on the lower part of the bracket, a guide area is arranged between two adjacent protrusions, and the lock block is arranged in the guide area to prevent the movable seat from moving circumferentially.

3. The push button switch according to claim 2, characterized in that: The connecting portion and the locking hook portion are arranged perpendicular to each other, and the connecting portion and the locking hook portion are an integrated structure; The hook hook also includes a clamping portion for forming a horizontal clamping force on the upper portion of the moving seat.

4. The push button switch according to claim 3, characterized in that: The clamping portion includes a first bending portion and a second bending portion, a first clamping arm is formed between the first bending portion and the second bending portion, and a second clamping arm is formed between the second bending portion and the locking hook portion; An included angle between the first clamping arm and the second clamping arm is less than or equal to 90°.

5. The push button switch according to claim 2 or 4, characterized in that: A first groove is provided at the bottom of the protrusion, a second groove corresponding to the first groove is provided on the base, one end of the elastic member is provided in the first groove, and the other end is provided in the second groove; The first groove is located directly above the second groove.

6. The push button switch according to claim 5, characterized in that: The bottom of the movable seat is provided with four evenly distributed protrusions; The number of the first grooves is at least two, and the two first grooves are respectively arranged on the two diagonally arranged protrusions, and the number and positions of the second grooves correspond to the number and positions of the first grooves.

7. The push button switch according to claim 6, characterized in that: It also includes a housing and a light guide structure, wherein the light guide structure includes a bracket and a pressing portion, wherein the bracket is detachably arranged on the movable seat, and a sealing member is provided on the bracket sleeve, and the bottom of the sealing member abuts against the top of the sleeve; The outer side wall of the sleeve is provided with a plurality of convex ribs, and the shell is interference fit outside the sleeve via the convex ribs.

8. The push button switch according to claim 7, characterized in that: The connecting portion is also provided with a giving portion, which is bent toward one side of the connecting portion and is used for installing the vertical light source component.

9. The push button switch according to claim 7, characterized in that: The connecting portion is also provided with a clearance hole, and the light source component passes through the clearance hole and is arranged above the connecting portion.

10. The push button switch according to claim 8 or 9, characterized in that: The base is also provided with at least two stationary contact pieces, the top of each stationary contact piece is provided with a stationary contact point, the movable seat is plugged with a moving contact piece, and both ends of each moving contact piece are provided with moving contacts that cooperate with the stationary contacts; A conductive pin is also provided at the bottom of the base, and one end of the conductive pin passes through the bottom of the base and is coupled to the circuit board.

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