A push-button switch

Abstract

The present invention discloses a push button switch, aiming to solve the problems of limited internal space, inconvenient installation of the circuit board, and limited lightweight design of traditional push button switches. By adopting the design of a detachable sleeve and a base assembly, optimizing the internal space layout, etc., the present invention has successfully achieved the efficient installation of the circuit board and sufficient internal space reservation. At the same time, the stable lock block and hook needle structure ensure the reliable performance of the switch, and the cooperation of the convex block and the guiding area effectively prevents the moving seat from shifting. In addition, the present invention also incorporates a flexible indication function. Through the combination of the light source component and the light guiding structure, the state of the push button switch can be intuitively indicated. In summary, the push button switch provided by the present invention not only optimizes the space utilization, realizes the lightweight design, but also improves the installation convenience, the stability of the switch, and the use convenience, bringing significant technological progress and improved user experience to the field of push button switches.

Description

Technical Field

[0001] The present invention relates to the technical field of switch devices, and more particularly 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 structure of push button switches, the hook needle is usually arranged at the bottom of the base, and this layout is particularly inconvenient when a circuit board needs to be installed. For example, in a push button switch disclosed in a Chinese utility model patent with publication number CN212625278U, its locking hook 6 is arranged on the base 44 through a clamping block 442, which is the traditional structure setting of a push button switch. When a circuit board 7 needs to be further arranged, it can only be sleeved on the heart-shaped lock frame 5.

[0003] In addition, in the prior art, in order to install a circuit board, not only additional longitudinal space needs to be planned for installation, but also channels need to be opened on the circuit board to prevent interference with the movement track of the push button switch. Such a design not only makes the space of the circuit board cramped, but also makes the internal space distribution of the push button switch more crowded, which is not conducive to heat dissipation. In addition, if the circuit board is installed by adding modules, the volume of the push button switch will often be increased, 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 push button switch. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] To solve the above problems, the present invention provides a push button switch, aiming 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.

[0006] (II) Technical Solutions

[0007] A push button switch of the present invention, the push button switch comprising:

[0008] A base having 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;

[0009] A sleeve detachably arranged on the base;

[0010] A moving seat located above the base, the moving seat is movably arranged in the sleeve, and a hook needle is also clamped on the top of the moving seat;

[0011] A hook needle including a connecting portion and a locking hook portion, the hook needle can move with the movement of the moving seat, and the locking hook portion is used to cooperate with the heart-shaped lock;

[0012] A limiting portion is provided at the top of the movable seat. The connecting portion is clamped in the limiting portion to limit the vertical position of the crochet hook. An elastic member is further provided between the movable seat and the base for providing an upward acting force for the reset of the movable seat;

[0013] A circuit board is provided in the cavity. A light source component is coupled to the circuit board for indicating the operation state of the push button switch.

[0014] In the present invention, the heart-shaped lock is provided on the outer side of the lock block. A plurality of protrusions are provided at the lower part of the bracket. A guiding area is further provided between two adjacent protrusions. The lock block is arranged in the guiding area to prevent the circumferential movement of the movable seat.

[0015] In the present invention, the connecting portion and the lock hook portion are arranged perpendicular to each other, and the connecting portion and the lock hook portion are of an integral structure;

[0016] The crochet hook further includes a clamping portion for forming a horizontal clamping force on the upper part of the movable seat.

[0017] 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. A second clamping arm is formed between the second bending portion and the lock hook portion;

[0018] The included angle between the first clamping arm and the second clamping arm is less than or equal to 90°.

[0019] 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 arranged in the first groove, and the other end is arranged in the second groove;

[0020] The first groove is located directly above the second groove.

[0021] In the present invention, the number of the first grooves is at least two, and the two first grooves are respectively arranged on two protrusions arranged diagonally. The number and position of the second grooves correspond to the number and position of the first grooves.

[0022] In the present invention, it further includes a housing and a light guiding structure. The light guiding structure includes a bracket and a pressing portion. The bracket is detachably arranged on the movable seat. A sealing member is sleeved on the bracket. The bottom of the sealing member abuts against the top of the sleeve;

[0023] A plurality of convex ribs are provided on the outer side wall of the sleeve. The housing is press-fitted and sleeved outside the sleeve through the convex ribs.

[0024] In the present invention, a relief portion is further provided on the connecting portion. The relief portion is bent towards one side of the connecting portion for mounting the vertical light source component.

[0025] In the present invention, a relief hole is further provided on the connecting portion. The light source component passes through the relief hole and is arranged above the connecting portion.

[0026] In the present invention, at least two static contact pieces are further provided on the base. A static contact point is provided at the top of the static contact piece. A moving contact piece is inserted into the moving seat. Moving contact points for cooperating with the static contact points are provided at both ends of the moving contact piece;

[0027] A conductive pin is further provided at the bottom of the base. One end of the conductive pin passes through the bottom of the base and is coupled and connected to the circuit board.

[0028] (III) Beneficial effects

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] In the present invention, the circuit board is ingeniously clamped in the accommodation cavity of the base, leaving sufficient space between it and the moving seat, facilitating the accommodation of electronic components on the circuit board. This design not only avoids the interference between the circuit board and the movement track of the push-button switch but also greatly improves the utilization rate of the internal space.

[0031] By adopting a detachable sleeve to be assembled with the base and optimizing the internal structure design, the present invention successfully realizes the installation of the circuit board without increasing the volume of the push-button switch. This not only meets the functional requirements but also conforms to the concept of lightweight design.

[0032] Through the optimized internal space layout, the heat inside the push-button switch can be dissipated more effectively in the present invention, reducing the problem of poor heat dissipation caused by crowded space. Description of the drawings

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0034] Figure 1 It is a schematic diagram of the overall structure of the push-button switch;

[0035] Figure 2 It is a schematic three-dimensional structure diagram of the push-button switch (the housing is omitted);

[0036] Figure 3Schematic diagram of the connection structure of the light guide structure;

[0037] Figure 4 Schematic diagram of the internal structure of the push-button switch;

[0038] Figure 5 Schematic diagram of the three-dimensional structure of the base;

[0039] Figure 6 Schematic diagram of the bottom structure of the moving seat;

[0040] Figure 7 Schematic diagram of the three-dimensional structure of the crochet hook;

[0041] Figure 8 Exploded structure diagram of the bracket and the pressing part;

[0042] Figure 9 Top view structure diagram of the crochet hook in Embodiment 2;

[0043] Figure 10 Three-dimensional structure diagram of the crochet hook in Embodiment 3.

[0044] 10. Base, 101. Second groove, 11. Lock block, 111. Heart-shaped lock, 12. Cavity, 20. Moving seat, 21. Moving contact piece, 22. Moving contact point, 23. Limiting part, 231. Protrusion, 232. Chamfer, 24. Convex block, 241. First groove, 242. Guide area, 30. Sleeve, 31. Outer shell, 32. Sealing member, 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. Crochet hook, 61. Connecting part, 611. Relief hole, 612. Relief part, 62. Locking 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 component. Detailed implementation manners

[0045] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0046] Embodiment 1

[0047] As Figures 1 - 3A button switch as shown is aimed at solving the problem that the internal space of the button switch in the prior art is relatively limited. In traditional button switches, the crochet needle 60 is often arranged at the bottom of the base 10. This leads to the need to plan a certain vertical space for installing the circuit board 70 if a circuit board 70 needs to be installed, and holes also need to be opened on the circuit board 70 to prevent interference with the movement track of the button switch. This not only results in a cramped space for the circuit board 70, but also makes the internal space distribution of the button switch more crowded, which is not conducive to heat dissipation. If the circuit board 70 needs to be installed by adding modules, it will also increase the volume of the button switch and cannot achieve a lightweight design.

[0048] Specifically, the button switch of the present invention includes a base 10 and a sleeve 30 detachably arranged on the base 10. The detachable installation methods include threaded connection, pin connection, key connection, snap connection, etc. In this embodiment, the base 10 and the sleeve 30 are assembled by snap connection, that is, four card slots are provided at the lower part of the sleeve 30, and a card block cooperating with the card slots is provided on the outer side of the base 10. The sleeve 30 is sleeved and clamped on the base 10 from top to bottom. Particularly, as long as the fitting relationship between the sleeve 30 and the base 10 can be achieved, the card slots can be arranged on the outer side of the base 10, and the card blocks can be arranged on the inner side wall of the sleeve 30.

[0049] Furthermore, as Figures 4 - 7 shown, the button switch of the present invention further includes a moving seat 20, and the moving seat 20 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 is vertically arranged upward on the base 10. The number of locking blocks 11 in this embodiment is two, and the two locking blocks 11 are arranged oppositely, that is, they are parallel to each other. A heart-shaped lock 111 is provided on the outer side of the two locking blocks 11. Particularly, whether the outer side of the locking block 11 is provided with a heart-shaped lock 111 can be selected according to actual needs. That is, in actual use, there is a difference between a single-sided crochet needle 60 and a double-sided crochet needle 60. According to the specific scenario of using a single-sided or double-sided crochet needle 60, it is determined whether two locking blocks 11 need to be provided or whether corresponding heart-shaped locks 111 need to be provided on the outer sides of the two locking blocks 11.

[0050] A cavity 12 is provided in the middle of the base 10, that is, the cavity 12 is arranged 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 clamped in the cavity 12, and relevant control circuits of the button switch are designed on the circuit board 70. A relatively large space is provided between the circuit board 70 and the moving seat 20 to facilitate the accommodation of electronic components on the circuit board 70.

[0051] Specifically, a crochet hook 60 is also clamped on the top of the moving seat 20 of the push-button switch of the present invention. The crochet hook 60 includes at least one locking hook portion 62 and a connecting portion 61 fitted with a matching limiting structure. The connecting portion 61 is of a cylindrical structure. A limiting portion 23 for clamping the connecting portion 61 of the crochet hook 60 is provided on the top of the moving seat 20. The connecting portion 61 and the limiting portion 23 are perpendicularly arranged, that is, the connecting portion 61 is a horizontal structure and the crochet hook portion 60 is a vertical structure. And a bent hook is provided at the end of the crochet hook portion 60 for cooperating with the heart-shaped lock 111. In particular, in this embodiment, the connecting portion 61 can be fixed by means of a card slot or a snap, that is, the crochet hook 60 is inserted into the limiting portion 23 from top to bottom. As the moving seat 20 moves downward under force, the locking hook portion 62 of the crochet hook 60 extends into the heart-shaped lock 111 to cooperate with it to realize the closing and unlocking actions of the push-button switch. This process is a known technical solution and will not be elaborated here.

[0052] The middle part of the moving seat 20 is a hollow structure, that is, there are openings at both the top and the bottom. The limiting portion 23 is arranged on the top of the moving seat 20. When using two card slots to clamp the crochet hook 60, the card slots are respectively arranged on the side walls of the top of the moving seat 20. The card slots include a chamfer 232 and a protrusion 231 from top to bottom. The chamfer 232 is used to facilitate the insertion of the connecting portion 61 into the card slot, and the function of the protrusion 231 is to form a limiting structure with the lower space to limit the connecting portion 61 below the protrusion 231.

[0053] Specifically, four bumps 24 are evenly distributed at the bottom of the moving seat 20 of the push-button switch of the present invention. The four bumps 24 are circumferentially distributed and the outer surface of the bumps 24 is arc-shaped, and its curvature is close to or the same as the inner surface curvature of the sleeve 30. A guiding area 242 is formed between two adjacent bumps 24. When the moving seat 20 is arranged in the sleeve 30, the locking block 11 is placed in the guiding area 242 from bottom to top. When the moving seat 20 moves downward, the locking block 11 in the guiding area 242 can prevent the moving seat 20 from rotating and deviating circumferentially.

[0054] In order to provide an upward restoring force for the moving seat 20 and better realize the switch function again, a first groove 241 is further provided at the bottom of the bump 24, and a second groove 101 with an upward opening 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 on the same axis. An elastic member 53 is arranged between the moving seat 20 and the base 10. 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 substance in a columnar structure, such as a sponge column, a silica gel column, a rubber column, etc. In particular, in order to make the force on the moving seat 20 more uniform, the first grooves 241 are respectively arranged at the bottoms of the bumps 24 at two diagonal corners, and the second grooves 101 are also arranged diagonally, that is, they are oppositely arranged on the base 10.

[0055] Further, two static contact pieces 50 with an L-shaped structure and conductive pins 52 are also provided on the base 10. A static contact point 51 is provided at the top of the static contact piece 50. A moving contact piece 21 is provided on the moving seat 20. The moving contact piece 21 is inserted and arranged inside the moving seat 20, and moving contact points 22 are further provided at the bottoms 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 points 22 abut against the static contact point 51. At this time, the push-button switch is in a conducting state. One end of the conductive pin 52 extends inward from outside the base 10 and is inserted into the circuit board 70 for electrical connection, and it is mainly used to connect with an external wire to conduct the control circuit of the push-button switch.

[0056] Specifically, as Figure 3 、 Figure 8 shown, the push-button switch of the present invention also has a light guide structure 40 and a cylindrical outer shell 31. A snap structure is provided on the upper part of the moving seat 20, and the light guide structure 40 is sleeved on the top of the moving seat 20 through the snap. It should be noted that one side where the snap is provided is an adjacent side to the side where the crochet hook 60 is provided, that is, the planes where the two are located are perpendicular to each other. A plurality of uniformly distributed ribs 33 are provided on the outer side wall of the sleeve 30, and the outer shell 31 is sleeved on the sleeve 30 through the ribs 33. At the same time, the outer shell 31 can cover the sleeve 30 and the light guide structure 40, that is, the outer shell 31 and the sleeve 30 are in an interference fit. The light guide structure 40 includes a bracket 41 and a pressing part 42. The bracket 41 is provided on the moving seat 20 through a snap, and the pressing part 42 is snapped into the bracket 41. The materials of the bracket 41 and the pressing part 42 can be polycarbonate, PVC, polystyrene, fluoroplastics, glass, etc. In particular, the material of the pressing part 42 can also be selected as a metal material, that is, the texture of the material is further processed and improved on the premise of sacrificing light transmittance.

[0057] In particular, a light source component 71 can be electrically connected to the circuit board 70 according to the needs of the user to indicate the on-off state of the push-button switch or an external circuit, that is, the action state indication of the push-button switch. For example, signals such as conduction, cut-off, and abnormality are used to remind the user through different light colors or flashing logics. The light source component 71 can adopt a surface-mounted LED lamp, a matrix lamp, etc. A hollow through hole is provided in the middle of the moving contact piece 21. The light of the light source component 71 passes through the through hole and the opening of the moving seat 20 to transmit light upward, and is mapped on the push-button switch through the light guide structure 40 for the user to view.

[0058] Specifically, a sealing member 32 is also provided on the light guide structure 40. One end of it is sleeved on the light guide structure 40, and the other end abuts against the top wall of the sleeve 30. The sealing member 32 can move with the movement of the light guide structure 40 and the moving seat 20 to maintain dynamic sealing.

[0059] Embodiment 2

[0060] As Figure 9 shown, the difference from Example 1 based on the solution of Example 1 is that since the connecting portion 61 of the crochet hook 60 is provided at the opening, it causes the button switch to be unable to install a vertical LED lamp or light-emitting diode. To eliminate this interference. In this embodiment, a relief portion 612 is further provided on the connecting portion 61 of the crochet hook 60. The shape of the relief portion 612 can be semicircular, bridge-shaped, V-shaped, polygonal, etc., that is, the vertical light source member 71 is relieved by 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.

[0061] Example 3

[0062] As Figure 10 shown, the difference from the technical solution of Example 2 is that in Example 2, unilateral bending is used for relief, while in this embodiment, a hollow relief hole 611 is provided at the connecting portion 61, and the light source member 71 passes through the relief hole 611 and is arranged above the connecting portion 61. The technical solution in this embodiment is more convenient to process and has higher economic benefits.

[0063] Example 4

[0064] As Figure 7 shown, on the basis of any technical solution in Examples 1-3, further, a clamping portion 63 can be provided between the connecting portion 61 and the crochet hook portion 60. The clamping portion 63 is formed by two-stage bending, that is, the clamping portion 63, the connecting portion 61, and the locking hook portion 62 are all integral structures, and the included angle of the clamping portion 63 is between 90° and 60°.

[0065] 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 locking hook portion 62. The included angle of the clamping portion 63, that is, the included angle between the first clamping arm 633 and the second clamping arm 634, and its clamping force is related to the angle of the included angle, that is, the smaller the included angle, the greater the clamping force of the second bending portion 632 on the moving seat 20.

[0066] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various variations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention should all fall within the protection scope of the present invention. The technical content claimed by the present invention has 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 provided in the cavity, and a light source is coupled to the circuit board to indicate the action state of the button switch; 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 crochet hook also includes a clamping portion for forming a horizontal clamping force on the upper portion of the movable seat; 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.

2. The push-button switch according to claim 1, wherein 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°.

3. The push-button switch according to claim 2, 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.

4. The push-button switch according to claim 3, 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.

5. The push-button switch according to claim 4, wherein 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.

6. The push-button switch according to claim 5, 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.

7. The push-button switch according to claim 5, 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.

8. The pushbutton switch according to claim 6 or 7, 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; The bottom of the base is also provided with conductive pins, and one end of each conductive pin passes through the bottom of the base and is coupled to the circuit board.

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