Terminal concentrated type push button switch

Abstract

The application discloses a terminal centralized type key switch and belongs to the technical field of key switches. The terminal centralized type key switch comprises a buckled bottom shell and a top shell, a peripheral sidewall of the top shell is provided with a fire wire hole, a zero wire hole and a ground wire hole in the same plane, a terminal assembly comprises a fire wire terminal, a zero wire terminal and a ground wire terminal arranged on the bottom shell, wire insertion holes of the fire wire terminal, the zero wire terminal and the ground wire terminal are matched with the fire wire hole, the zero wire hole and the ground wire hole, a static contact piece is provided with a matching part and an insertion part, the matching part is embedded in a static contact piece clamping groove on the bottom shell, and the insertion part is embedded in a wire insertion hole of the fire wire terminal, a dynamic contact piece is provided with a wiring part and a swing part, the wiring part is embedded in a dynamic contact piece clamping groove on the bottom shell, and the swing part is detachably connected with the static contact piece, a ratchet wheel key mechanism is arranged in the top shell, a top pressing end of the ratchet wheel key mechanism is located outside the top shell, and a bottom pushing end of the ratchet wheel key mechanism abuts against the swing part.

Description

Technical Field

[0001] This application belongs to the field of push button switch technology, and in particular relates to a terminal-centralized push button switch. Background Technology

[0002] In push-button switches equipped with terminals, there are typically neutral, live, and ground terminals, which are connected to the neutral, live, and ground wires, respectively. The neutral, live, and ground terminals are usually distributed at different locations around the circumference of the switch body, such as on both sides, to save materials and accommodate the layout of the internal conductive structure.

[0003] However, when connecting push-button switches with discretely arranged neutral, live, and ground terminals to external wiring, the layout of the external conductive structure needs to be adapted to the terminal layout of the push-button switch. This increases the complexity of external wiring operations when the push-button switch is installed in products such as power strips and sockets, making operation inconvenient and affecting assembly efficiency. At the same time, it also increases the complexity of the internal structure layout of products such as power strips and sockets. Summary of the Invention

[0004] This application provides a terminal-centralized push-button switch, aiming to solve to some extent the technical problems of push-button switches equipped with wiring terminals, such as inconvenience in connecting external wires, unsatisfactory assembly efficiency, and high difficulty in adapting to the mounting body. Therefore,

[0005] This application provides a terminal-centralized push-button switch, comprising:

[0006] The bottom shell and top shell are fastened together, and the top shell has a live wire hole, a neutral wire hole and a ground wire hole on the same plane on a circumferential side wall;

[0007] The terminal assembly includes a live wire terminal, a neutral wire terminal, and a ground wire terminal disposed on the bottom shell, wherein the insertion holes of the live wire terminal, the neutral wire terminal, and the ground wire terminal are matched and opposite to the live wire hole, the neutral wire hole, and the ground wire hole;

[0008] The stationary contact piece has a mating part and a plugging part. The mating part is embedded in the stationary contact piece slot on the bottom shell, and the plugging part is embedded in the plugging hole of the live wire terminal.

[0009] The moving contact has a wiring part and a swinging part. The wiring part is embedded in the moving contact slot on the bottom shell, and the swinging part is detachably connected to the stationary contact.

[0010] A ratchet button mechanism is disposed inside the top shell, with the top pressing end of the ratchet button mechanism located outside the top shell, and the bottom pushing end of the ratchet button mechanism abutting against the swing part.

[0011] In some embodiments, the insertion direction of the stationary contact slot and the moving contact slot is arranged along a first direction;

[0012] The terminal assembly has a insertion hole arranged along the first direction, and the terminal assembly and the stationary contact are spaced apart on the bottom shell along the first direction.

[0013] In some embodiments, the live wire terminal, the neutral wire terminal, and the ground wire terminal are arranged at intervals along a second direction;

[0014] The stationary contact slot and the moving contact slot are arranged at intervals along the second direction;

[0015] The swinging part and the mating part are arranged at intervals along a third direction, and the swinging direction of the swinging part and the pressing direction of the ratchet button mechanism are set along the third direction;

[0016] Wherein, the second direction and the third direction are orthogonal to any two of the first directions.

[0017] In some embodiments, the live wire terminal includes:

[0018] A locking wire frame is movably embedded in the top shell along the third direction. The locking wire frame has the insertion hole and the locking screw hole, and the locking screw hole is arranged along the third direction.

[0019] The locking bolt is rotatably mounted on the bottom shell and is screwed into the locking bolt hole.

[0020] In some embodiments, a locking countersunk hole is provided on the bottom shell, and the locking bolt is rotatably embedded in the locking countersunk hole. A stop arm is provided at the large-diameter opening of the locking countersunk hole, and the stop arm is positioned on the axial side of the bolt head of the locking bolt to prevent the locking bolt from disengaging from the locking countersunk hole.

[0021] In some embodiments, a guide groove is provided inside the top shell, the locking wire frame is slidably embedded in the guide groove along the third direction, and the fire wire hole is opened on the side wall of the guide groove.

[0022] In some embodiments, a sealing plate extends from the locking wire frame and is disposed in the third direction, so that when the locking wire frame is away from the live wire hole, the sealing plate at least partially blocks the live wire hole.

[0023] In some embodiments, the terminal-centralized push-button switch further includes an indicator light assembly, the two power terminals of which are electrically connected to the neutral terminal and the swing portion, respectively.

[0024] In some embodiments, the indicator light assembly includes:

[0025] The component frame is movably fitted onto the guide post provided on the top shell, and the position of the component frame is matched with the position of the pressing end of the ratchet button mechanism, so as to drive the ratchet button mechanism to move by pressing the component frame;

[0026] An indicator light is disposed within the component frame, and the indicator light has a first power terminal and a second power terminal;

[0027] A neutral wire contact piece is disposed on the top shell, and the neutral wire contact piece slides against the neutral wire terminal;

[0028] A first conductive spring is inserted into a first limiting hole on the top shell, and the first conductive spring elastically abuts against the first power supply terminal and the neutral wire contact.

[0029] The second conductive spring passes through the second limiting hole on the top shell, and the second conductive spring elastically abuts against the second power supply end and the swing part.

[0030] In some embodiments, the terminal-centralized push-button switch further includes a ground wire extension piece and / or a neutral wire extension piece;

[0031] The ground wire extension piece is pressed into the ground wire terminal, and the neutral wire extension piece is pressed into the neutral wire terminal.

[0032] The embodiments of this application have at least the following beneficial effects:

[0033] The terminal-centralized push-button switch provided in this application includes: a snap-fit ​​bottom shell and a top shell, a terminal assembly, a stationary contact, a moving contact, and a ratchet button mechanism; a live wire hole, a neutral wire hole, and a ground wire hole are coplanarly arranged on a circumferential side wall of the top shell; the terminal assembly includes a live wire terminal, a neutral wire terminal, and a ground wire terminal disposed on the bottom shell, and the insertion holes of the live wire terminal, the neutral wire terminal, and the ground wire terminal are matched and opposite to the live wire hole, the neutral wire hole, and the ground wire hole; the stationary contact has a mating part and a plugging part, the mating part is embedded in a stationary contact slot on the bottom shell, and the plugging part is embedded in the insertion hole of the live wire terminal; the moving contact has a wiring part and a swinging part, the wiring part is embedded in a moving contact slot on the bottom shell, and the swinging part is detachably connected to the stationary contact; the ratchet button mechanism is disposed inside the top shell, and the top pressing end of the ratchet button mechanism is located outside the top shell, and the bottom pushing end of the ratchet button mechanism abuts against the swinging part.

[0034] Because the top shell has a coplanar design for the live wire hole, neutral wire hole, and ground wire hole, and the wiring holes for the live wire terminal, neutral wire terminal, and ground wire terminal on the bottom shell are matched and aligned with the live wire hole, neutral wire hole, and ground wire hole, the terminal assembly is coplanarly concentrated on one side of the push-button switch body. This facilitates wiring during external installation and improves assembly convenience to some extent. At the same time, the compactly arranged terminal assembly reduces the complexity of the internal conductive structure of products such as plug boards and sockets, can adapt to the assembly needs of small-sized products, and helps to expand the scope of application. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 A schematic diagram of the terminal-centralized push-button switch provided in an embodiment of this application is shown;

[0037] Figure 2 It shows Figure 1 Another structural diagram of a terminal-centralized push-button switch;

[0038] Figure 3 It shows Figure 1 An exploded view of a terminal-centralized push-button switch;

[0039] Figure 4 It shows Figure 1 Another exploded view of a terminal-centralized push-button switch;

[0040] Figure 5 It shows Figure 1 A schematic diagram of the conductive structure of a terminal-centralized push-button switch;

[0041] Figure 6 It shows Figure 1 A schematic diagram of the assembly of the terminal assembly and the base of the terminal-centralized push-button switch.

[0042] Figure 7 It shows Figure 1 Another structural diagram of a terminal-centralized push-button switch;

[0043] Figure 8 It shows Figure 1 A schematic diagram of the open terminal block of a terminal-centralized push-button switch;

[0044] Figure 9 It shows Figure 1A schematic diagram showing the blocked wiring hole of a terminal-centralized push-button switch.

[0045] Figure 10 It shows Figure 1 A schematic diagram of the structure of the base shell 1 of the terminal-centralized push-button switch;

[0046] Figure 11 It shows Figure 1 A schematic diagram of the top shell 1 of the terminal-centralized push-button switch;

[0047] Figure 12 It shows Figure 1 A schematic diagram of another conductive structure for a terminal-centralized push-button switch.

[0048] Figure label:

[0049] 1-Bottom shell, 11-Static contact slot, 12-Moving contact slot, 13-Locking countersunk hole, 14-Stop arm, 15-Allowing hole;

[0050] 2-Top shell, 2a-Guide groove, 21-Circumferential sidewall, 211-Live wire hole, 212-Neutral wire hole, 213-Ground wire hole, 22-Guide post, 23-First limiting hole, 24-Second limiting hole, 25-Positioning post, 26-Limiting hole, 261-Rib, 27-Positioning boss;

[0051] 3-Terminal assembly, 31-Live wire terminal, 311-Locking wire frame, 311a-Wire insertion hole, 311b-Locking screw hole, 311c-Blocking plate, 312-Locking bolt, 32-Neutral wire terminal, 33-Ground wire terminal;

[0052] 4-Stationary contact piece, 41-Mating part, 42-Plug-in part;

[0053] 5-Moving contact piece, 51-Wiring part, 52-Swing part;

[0054] 6-Ratchet button mechanism, 6a-Top pressing part, 6b-Bottom pushing part, 61-Large ratchet, 62-Small ratchet, 63-Reset spring;

[0055] 7-Indicator light assembly, 71-Component frame, 72-Indicator light, 721-First power supply terminal, 722-Second power supply terminal, 73-Neutral wire contact, 74-First conductive spring, 75-Second conductive spring, 76-Press cap;

[0056] 81 - Ground wire extension strip, 82 - Neutral wire extension strip. Detailed Implementation

[0057] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0058] Furthermore, reference numerals and / or reference letters may be repeated in different examples in this application. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0059] This application is described below with reference to the accompanying drawings and specific embodiments:

[0060] This application provides a terminal-centralized push-button switch, which aims to solve to some extent the technical problems of push-button switches with wiring terminals being inconvenient to connect to external wires, having unsatisfactory assembly efficiency, and being difficult to adapt to the installation body.

[0061] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 In some embodiments, a terminal-centralized push-button switch is a push-button switch equipped with wiring terminals. The terminal assembly is connected to the conductive structure inside the push-button switch, and an external conductive line is connected through the terminal assembly to achieve convenient installation.

[0062] The terminal-centralized push-button switch includes: a snap-fit ​​bottom shell 1 and a top shell 2, a terminal assembly 3, a stationary contact 4, a moving contact 5, and a ratchet button mechanism 6. The bottom shell 1 and the top shell 2 form a support structure with an internal cavity for accommodating and installing the terminal assembly 3, the stationary contact 4, the moving contact 5, and the ratchet button mechanism 6. The terminal assembly 3, the stationary contact 4, and the moving contact 5 are disposed on the bottom shell 1. The stationary contact 4 is electrically connected to the terminal assembly 3, and the moving contact 5 is detachably connected to the stationary contact 4. The ratchet button mechanism 6 is disposed inside the top shell 2 and abuts against the moving contact 5 to push the moving contact 5 to move and lock its moved position, thereby realizing switch on / off control.

[0063] The top shell 2 has a live wire hole 211, a neutral wire hole 212, and a ground wire hole 213 coplanarly arranged on its circumferential sidewall 21. These allow external conductive lines to be connected to the push-button switch with a uniform amplitude, simplifying the operation of connecting external conductive lines and improving ease of use and efficiency. It is worth noting that the coplanar arrangement of the live wire hole 211, neutral wire hole 212, and ground wire hole 213 primarily refers to the fact that the amplitude of the wire connection operation is relatively uniform and the range is concentrated along the direction of the insertion line. The live wire hole 211, neutral wire hole 212, and ground wire hole 213 are roughly flush, allowing for a relatively concentrated arrangement of external lines. This facilitates easy connection and avoids overly scattered and complex internal wiring layouts in products such as power strips and sockets, contributing to a more compact internal layout and reducing the overall size of the product.

[0064] The terminal assembly 3 includes a live wire terminal 31, a neutral wire terminal 32, and a ground wire terminal 33. The insertion holes of the live wire terminal 31, the neutral wire terminal 32, and the ground wire terminal 33 are matched and aligned with the live wire hole 211, the neutral wire hole 212, and the ground wire hole 213, respectively, so that external wires can be inserted into the live wire terminal 31, the neutral wire terminal 32, and the ground wire terminal 33 to achieve a stable electrical connection. Correspondingly, the live wire terminal 31, the neutral wire terminal 32, and the ground wire terminal 33 are also roughly flush with the circumferential sidewall 21 to facilitate the insertion of external wires.

[0065] The stationary contact 4 has a mating part 41 and a plug-in part 42. The mating part 41 is embedded in the stationary contact slot 11 on the bottom shell 1, and the plug-in part 42 is embedded in the plug hole of the live wire terminal 31 to maintain the electrical connection between the stationary contact 4 and the live wire terminal 31.

[0066] The moving contact 5 has a wiring portion 51 and a swing portion 52. The wiring portion 51 is embedded in the moving contact slot 12 on the bottom shell 1. The swing portion 52 is detachably connected to the stationary contact 4. Thus, a conductive path is established through the contact between the swing portion 52 and the mating portion 41 of the stationary contact 4, or the conductive path is broken through the separation of the swing portion 52 and the mating portion 41 of the stationary contact 4. Thus, the switching function is realized.

[0067] The ratchet button mechanism 6 is disposed inside the top shell 2, and the top pressing end 6a of the ratchet button mechanism 6 is located outside the top shell 2. The bottom pushing end 6b of the ratchet button mechanism 6 abuts against the swing part 52, thereby switching the position of the bottom pushing end 6b by pressing the top pressing end 6a, that is, relatively closer to the top pressing end 6a or relatively farther away from the top pressing end 6a.

[0068] When the bottom pushing end 6b is positioned close to the top pressing end 6a, the pressure on the swing part 52 is released, causing the swing part 52 to disconnect from the contact electrical connection with the mating part 41 under the action of an elastic restoring force, thereby turning off the switch. When the bottom pushing end 6b is positioned away from the top pressing end 6a, pressure is applied to the swing part 52, causing the swing part 52 to maintain contact electrical connection with the mating part 41, thereby closing the switch.

[0069] It is worth noting that the moving contact 5, the stationary contact 4, and the terminal assembly 3 are all conductive structures, and can be made of various conductive materials such as conductive metals; no specific limitations are imposed here. Specifically, the moving contact 5 is made of a conductive material with a certain degree of elastic deformation capability, such as a copper sheet.

[0070] See Figure 3 , Figure 4 and Figure 5 In some embodiments, the ratchet button mechanism 6 is a conventional self-locking button or mechanical holding switch. Its core principle is to achieve the "locking" and "unlocking" of the button state through the ratchet mechanism. It includes a large ratchet 61, a small ratchet 62 and a return spring 63 nested in sequence. The large ratchet 61 meshes with the small ratchet 62. The top pressing end 6a is located at the top of the large ratchet 61 and the bottom pushing end 6b is located at the bottom of the return spring 63.

[0071] The top shell 2 has a limiting hole 26 and a rib 261 located in the limiting hole 26, which, together with the engagement state of the large ratchet 61 and the small ratchet 62, realizes the self-locking button function.

[0072] See Figure 5 and Figure 6 In some embodiments, considering that multiple terminals in the terminal assembly 3 are arranged coplanarly, the installation of the conductive structure within the switch requires greater precision and stability, which reduces operational efficiency to some extent. Therefore, the assembly smoothness and operational efficiency can be improved by optimizing the arrangement of the conductive structure and the assembly fixing structure.

[0073] Specifically, the insertion directions of the stationary contact slot 11 and the moving contact slot 12 can be set along the first direction Y, so that during assembly, the stationary contact 4 can be directly inserted into the stationary contact slot 11 and the moving contact 5 can be directly inserted into the moving contact slot 12 along the first direction Y.

[0074] Generally, the openings of the stationary contact slot 11 and the moving contact slot 12 face the same direction, allowing the insertion of the stationary contact 4 and the moving contact 5 to be completed continuously at one station, thus improving assembly efficiency to some extent. Especially when using automated production lines for automatic assembly, completing the installation of two components at a single station will greatly improve assembly efficiency.

[0075] Considering that the stationary contact 4 and the moving contact 5 need to work together to control the opening and closing of the switch, the stationary contact slot 11 and the moving contact slot 12 can be arranged nearby.

[0076] It is worth noting that, since the stationary contact 4 needs to be connected to the moving contact 5 and the live wire terminal 31, the stationary contact slot 11 and the moving contact slot 12 are provided with notches in addition to the insertion slots, so as to expose part of the main body of the stationary contact 4 and the moving contact 5 to achieve contact and conduction.

[0077] In some embodiments, each terminal in the terminal assembly 3 has a plug hole for inserting a conductive line to achieve an electrical connection.

[0078] To save space in the internal conductive structure of the switch, the insertion holes of each terminal in the terminal assembly 3 can be arranged along the first direction Y, and the terminal assembly 3 and the stationary contact 4 can be spaced apart on the bottom shell 1 along the first direction Y. Thus, when connecting the stationary contact 4 and the live wire terminal 31, it is only necessary to insert the stationary contact 4 along the first direction Y.

[0079] In other words, the insertion of the stationary contact 4 and its electrical connection with the live wire terminal 31 can be completed simultaneously, which can improve assembly efficiency to a certain extent. On the other hand, such an arrangement and installation method can simplify the structure of the stationary contact 4 to a certain extent, without the need for additional design to fit the wire hole of the live wire terminal 31, thereby simplifying the internal conductive structure of the push-button switch.

[0080] It is worth noting that, in order to simplify the assembly operation of the terminal assembly 3 for external wiring, the orientation of the insertion holes of the ground terminal 33 and the neutral terminal 32 is the same as the orientation of the insertion hole of the live terminal 31, which is also along the first direction Y.

[0081] In some embodiments, in order to further improve the structural compactness of the push-button switch and reduce the overall size, the live wire terminal 31, the neutral wire terminal 32, and the ground wire terminal 33 are arranged at intervals along the second direction X; the stationary contact slot 11 and the moving contact slot 12 are arranged at intervals along the second direction; and the second direction X is orthogonal to the first direction Y, which can reduce the mating gap between the terminal assembly 3 and the stationary contact 4 and the moving contact 5 to a certain extent, thereby achieving a compact arrangement.

[0082] Similarly, the swinging part 52 and the mating part 41 are arranged at intervals along the third direction Z. The swinging direction of the swinging part 52 and the pressing direction of the ratchet button mechanism 6 are set along the third direction Z. The second direction X and the first direction Y are orthogonal to the third direction Z. In this way, the space of the case space is utilized to realize the three-dimensional arrangement of each conductive structure. The orthogonal arrangement improves the space utilization inside the button switch, thereby helping to improve the layout compactness and reduce the overall volume.

[0083] It is worth noting that, since the live wire terminal 31, the neutral wire terminal 32, and the ground wire terminal 33 are arranged approximately flush along the second direction X to simplify the operation of external wiring, the installation positions of the stationary contact 4 and the moving contact 5 are arranged at intervals along the second direction X, and the insertion direction is set along the first direction Y, which is orthogonal to the second direction X. This can make full use of the space formed by the terminal assembly 3 in the first direction Y, and can reduce the installation space in other directions to a certain extent.

[0084] See Figure 3 , Figure 4 , Figure 5 and Figure 6 In some embodiments, each terminal in the terminal assembly 3 adopts a plug-in locking installation wiring method, and the structural form of each terminal can be set to be the same. For the sake of simplicity, the following description will take the live wire terminal 31 as an example.

[0085] Specifically, the live wire terminal 31 includes a locking wire frame 311 and a locking bolt 312; the locking wire frame 311 has a wire insertion hole 311a and a locking screw hole 311b, and the locking bolt 312 can be screwed into the locking screw hole 311b, so that the length of the rod of the locking bolt 312 located in the wire insertion hole 311a can be adjusted by rotating the locking bolt 312, thereby pressing or releasing the conductive line embedded in the wire insertion hole 311a.

[0086] Considering that the live wire terminal 31 has a cooperating stationary contact 4 and other wiring terminals in both the first direction Y and the second direction X, the moving direction of the locking frame 311 can be set in the third direction Z.

[0087] To prevent the locking bolt 312 from protruding from the bottom shell 1 and being interfered with by external forces, thus affecting the assembly posture, the locking bolt 52 can be rotatably mounted on the bottom shell 1 in its original position. Therefore, the locking frame 311 will be a movable part; that is, the locking frame 311 is configured to be movable along the third direction Z and is mounted inside the top shell 2. The locking frame 311 will not be able to rotate around the axis of the third direction Z, so that the locking frame 311 can be driven to move by rotating the locking bolt 312.

[0088] Correspondingly, the locking screw hole 311b is set along the third direction Z.

[0089] Participate in soil 8 and Figure 10 In some embodiments, in order to reduce the risk of external interference to the locking bolt 312 and keep it rotating in place, a locking countersunk hole 13 can be provided on the bottom shell 1. The locking bolt 312 is rotatably embedded in the locking countersunk hole 13, and a stop arm 14 is provided at the large-diameter opening of the locking countersunk hole 13. The stop arm 14 is blocked on the axial side of the bolt head of the locking bolt 312 to prevent the locking bolt 312 from disengaging from the locking countersunk hole 13.

[0090] In other words, the bolt head of the locking bolt 312 is accommodated by the locking countersunk hole 13, and the bolt head of the locking bolt 312 is completely confined within the locking countersunk hole 13 by the stop arm 14.

[0091] During assembly, the locking bolt 312 can be directly pressed into the locking countersunk hole 13 along the third direction Z, eventually allowing the bolt head to completely break through the obstruction of the stop arm 14 and enter the locking countersunk hole 13. Correspondingly, the stop arm 14 should be a structural component with elastic deformation and reset capabilities, so that it can deform to allow the locking bolt 312 to pass through, and can reset after the locking bolt 312 has passed through, thereby effectively preventing the locking bolt 312 from disengaging.

[0092] In some embodiments, the stop arms 14 may be configured as two opposing arms, thereby stably restricting the locking bolt 312 from disengaging along the third direction Z from the radial sides of the bolt head of the locking bolt 312.

[0093] Of course, there can be more than one stop arm 14; or there can be only one stop arm 14, as long as it can prevent the locking bolt 312 from coming off.

[0094] In some embodiments, in order to enable the stop arm 14 to have sufficient deformation clearance capacity and reduce the damage to the locking bolt 312 during installation, clearance holes 15 of a certain length can be provided radially on both sides of the stop arm 14, so that the stop arm 14 has a larger deformation space and avoids damage when subjected to forced compression.

[0095] Of course, the clearance hole 15 can also be configured as a clearance groove.

[0096] join Figure 11 In some embodiments, in order to maintain the displacement capability of the locking wire frame 311 along the third direction Z, a guide groove 2a is provided in the top shell 2, the locking wire frame 311 is slidably embedded in the guide groove 2a along the third direction Z, and the wire hole 211 is opened on the side wall of the guide groove 2a.

[0097] The guide groove 2a restricts the rotation of the locking frame 311 by means of shape adaptation or other anti-rotation structure, so as to ensure that it can move along the third direction Z under the drive of the locking bolt 312.

[0098] It is worth noting that, corresponding to the neutral terminal 32 and the ground terminal 33, the top shell 2 is also provided with a matching guide groove (not shown), and the neutral hole 212 and the ground hole 213 are respectively opened on the side wall of the guide groove of the neutral terminal 32 and the ground terminal 33.

[0099] In some embodiments, when the live wire terminal 31 is awaiting the installation or removal of an external conductive line, the locking frame 311 should be moved to align the insertion hole 311a with the live wire hole 211 to ensure stable insertion of the external conductor. Then, by rotating the locking bolt 312, the locking frame 312 is moved to clamp the conductive element embedded in the insertion hole 311a between the locking frame 311 and the locking bolt 312. At this time, the insertion hole 311a and the live wire hole 211 will no longer be directly aligned, but only partially aligned.

[0100] On the other hand, under conditions such as improper assembly, the locking wire frame 311 is in an abnormal position for wiring, and the insertion hole 311a and the live wire hole 211 are not directly opposite each other, or the relative parts are very small. In such cases, loose connections are likely to occur during assembly, affecting power supply and posing safety risks.

[0101] Therefore, a sealing plate 311c can be provided on the locking wire frame 311, and the sealing plate 311c is arranged in three directions. Through positional cooperation, when the locking wire frame 311 moves away from the live wire hole 211, the sealing plate 311c will lock the movement of the prime locking wire frame 311 and gradually block the live wire hole 211, thereby avoiding misinsertion and preventing external debris from entering the switch through the live wire hole 211, causing short circuits and other safety risks, thus ensuring electrical safety.

[0102] Generally, on the third direction Z, the locking bolt 312 and the sealing plate 311c are located on both sides of the locking wire frame 311, and the specifications of the sealing plate 311c are equivalent to the specifications of the live wire hole 211.

[0103] Correspondingly, the top shell 2 should have a corresponding space or hole at the position of the sealing plate 311c to accommodate the sealing plate 311c and ensure its smooth operation.

[0104] Of course, it is worth noting that the neutral terminal 32 and the ground terminal 33 should also be equipped with sealing plates (not shown) in the same manner as the live terminal 31, in order to improve the overall reliability and safety of power supply.

[0105] In some embodiments, the bottom shell 1 may be configured as a sheet structure with a certain thickness, and the top shell 2 may be configured as a shell structure with a certain cavity, providing working space for each functional component, as well as a corresponding support or fixing structure, such as providing a constraint structure for the ratchet button mechanism 6 for its pressing operation.

[0106] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 12 In some embodiments, in order to indicate the working status of the push button switch, the terminal-centralized push button switch further includes an indicator light assembly 7, the two power supply terminals of which are electrically connected to the neutral terminal 32 and the swing part 52, respectively.

[0107] When the swing portion 52 contacts and conducts electricity with the stationary contact piece 4, the indicator light assembly 7 receives power and illuminates, indicating that the terminal-centralized push-button switch is currently in the closed state. When the swing portion 52 separates from the stationary contact piece 4, the indicator light assembly 7 is de-energized and extinguishes, indicating that the terminal-centralized push-button switch is currently in the open state.

[0108] In some embodiments, the indicator light assembly 7 may include: an assembly frame 71, an indicator light 72, a neutral wire contact 73, a first conductive spring 74, and a second conductive spring 75.

[0109] The component frame 71 is movably sleeved on the guide post 22 provided on the top shell 2, and the position of the component frame 71 is matched with the position of the top pressing end 6a of the ratchet button mechanism 6, so that the ratchet button mechanism 6 can be driven to move by pressing the component frame 71.

[0110] The indicator light 72 is disposed within the component frame 71, and the indicator light 72 has a first power terminal 721 and a second power terminal 722; the neutral wire contact 73 is disposed on the top shell 2, and the neutral wire contact 73 slides against the neutral wire terminal 32; the first conductive spring 74 passes through the first limiting hole 23 opened on the top shell 2, and the first conductive spring 74 elastically abuts against the first power terminal 721 and the neutral wire contact 73; the second conductive spring 75 passes through the second limiting hole 24 opened on the top shell 2, and the second conductive spring 75 elastically abuts against the second power terminal 722 and the swing part 52.

[0111] Generally, the component frame 71 is also provided with a press cap 76, and the press cap is provided with a light-transmitting part having a specific warning shape.

[0112] In some embodiments, the neutral contact 73 may be disposed on the surface of the top shell 2, thereby isolating it from the internal conductive structure of the switch. This reduces the space available inside the switch for the conductive structure, allowing the push-button switch to be made smaller while ensuring the integrity of the conductive structure.

[0113] Generally, the top shell 2 is provided with a positioning boss 27, and the neutral wire contact piece 73 is provided with a positioning through hole. The neutral wire contact piece 73 can be installed by the cooperation of the positioning boss 27 and the positioning through hole.

[0114] See Figure 2 , Figure 3 and Figure 4 In some embodiments, positioning posts 25 may be provided on the top shell 2 to facilitate the positioning and installation of the switch.

[0115] See Figure 1 , Figure 2 , Figure 3 and Figure 4In some embodiments, under certain product operating conditions, there may be insufficient wiring length. The terminal-centralized push button switch further includes a ground wire extension piece 81 and / or a neutral wire extension piece 82; the ground wire extension piece 81 is pressed into the ground wire terminal 33, and the neutral wire extension piece 82 is pressed into the neutral wire terminal 32.

[0116] The embodiments of this application have at least the following beneficial effects:

[0117] The terminal-centralized push-button switch provided in this application includes: a snap-fit ​​bottom shell and a top shell, a terminal assembly, a stationary contact, a moving contact, and a ratchet button mechanism; a live wire hole, a neutral wire hole, and a ground wire hole are coplanarly arranged on a circumferential side wall of the top shell; the terminal assembly includes a live wire terminal, a neutral wire terminal, and a ground wire terminal disposed on the bottom shell, and the insertion holes of the live wire terminal, the neutral wire terminal, and the ground wire terminal are matched and opposite to the live wire hole, the neutral wire hole, and the ground wire hole; the stationary contact has a mating part and a plugging part, the mating part is embedded in a stationary contact slot on the bottom shell, and the plugging part is embedded in the insertion hole of the live wire terminal; the moving contact has a wiring part and a swinging part, the wiring part is embedded in a moving contact slot on the bottom shell, and the swinging part is detachably connected to the stationary contact; the ratchet button mechanism is disposed inside the top shell, and the top pressing end of the ratchet button mechanism is located outside the top shell, and the bottom pushing end of the ratchet button mechanism abuts against the swinging part.

[0118] Because the top shell has a coplanar design for the live wire hole, neutral wire hole, and ground wire hole, and the wiring holes for the live wire terminal, neutral wire terminal, and ground wire terminal on the bottom shell are matched and aligned with the live wire hole, neutral wire hole, and ground wire hole, the terminal assembly is coplanarly concentrated on one side of the push-button switch body. This facilitates wiring during external installation and improves assembly convenience to some extent. At the same time, the compactly arranged terminal assembly reduces the complexity of the internal conductive structure of products such as plug boards and sockets, can adapt to the assembly needs of small-sized products, and helps to expand the scope of application.

[0119] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0120] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0121] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0122] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0123] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0124] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0125] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0126] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A terminal-centralized push-button switch, characterized in that, include: The bottom shell and top shell are fastened together, and the top shell has a live wire hole, a neutral wire hole and a ground wire hole on the same plane on a circumferential side wall; The terminal assembly includes a live wire terminal, a neutral wire terminal, and a ground wire terminal disposed on the bottom shell, wherein the insertion holes of the live wire terminal, the neutral wire terminal, and the ground wire terminal are matched and opposite to the live wire hole, the neutral wire hole, and the ground wire hole; The stationary contact piece has a mating part and a plugging part. The mating part is embedded in the stationary contact piece slot on the bottom shell, and the plugging part is embedded in the plugging hole of the live wire terminal. The moving contact has a wiring part and a swinging part. The wiring part is embedded in the moving contact slot on the bottom shell, and the swinging part is detachably connected to the stationary contact. A ratchet button mechanism is disposed inside the top shell, with the top pressing end of the ratchet button mechanism located outside the top shell, and the bottom pushing end of the ratchet button mechanism abutting against the swing part.

2. The terminal-centralized push-button switch as described in claim 1, characterized in that, The insertion direction of the stationary contact slot and the moving contact slot is set along the first direction; The terminal assembly has a insertion hole arranged along the first direction, and the terminal assembly and the stationary contact are spaced apart on the bottom shell along the first direction.

3. The terminal-centralized push-button switch as described in claim 2, characterized in that, The live wire terminal, the neutral wire terminal, and the ground wire terminal are arranged at intervals along the second direction; The stationary contact slot and the moving contact slot are arranged at intervals along the second direction; The swinging part and the mating part are arranged at intervals along a third direction, and the swinging direction of the swinging part and the pressing direction of the ratchet button mechanism are set along the third direction; Wherein, the second direction and the third direction are orthogonal to any two of the first directions.

4. The terminal-centralized push-button switch as described in claim 3, characterized in that, The fire wire terminal includes: A locking wire frame is movably embedded in the top shell along the third direction. The locking wire frame has the insertion hole and the locking screw hole, and the locking screw hole is arranged along the third direction. The locking bolt is rotatably mounted on the bottom shell and is screwed into the locking bolt hole.

5. The terminal-centralized push-button switch as described in claim 4, characterized in that, The bottom shell has a locking countersunk hole, and the locking bolt is rotatably embedded in the locking countersunk hole. The large-diameter opening of the locking countersunk hole is provided with a stop arm, which blocks the axial side of the bolt head of the locking bolt to prevent the locking bolt from dislodging from the locking countersunk hole.

6. The terminal-centralized push-button switch as described in claim 4, characterized in that, The top shell is provided with a guide groove, the locking wire frame can be slidably embedded in the guide groove along the third direction, and the fire wire hole is opened on the side wall of the guide groove.

7. The terminal-centralized push-button switch as described in claim 4, characterized in that, A sealing plate is provided extending on the locking wire frame along the third direction, so that when the locking wire frame is away from the live wire hole, the sealing plate at least partially blocks the live wire hole.

8. The terminal-centralized push-button switch as described in any one of claims 1 to 7, characterized in that, The terminal-centralized push-button switch also includes an indicator light assembly, the two power terminals of which are electrically connected to the neutral terminal and the swing part, respectively.

9. The terminal-centralized push-button switch as described in claim 8, characterized in that, The indicator light assembly includes: The component frame is movably fitted onto the guide post provided on the top shell, and the position of the component frame is matched with the position of the pressing end of the ratchet button mechanism, so as to drive the ratchet button mechanism to move by pressing the component frame; An indicator light is disposed within the component frame, and the indicator light has a first power terminal and a second power terminal; A neutral wire contact piece is disposed on the top shell, and the neutral wire contact piece slides against the neutral wire terminal; A first conductive spring is inserted into a first limiting hole on the top shell, and the first conductive spring elastically abuts against the first power supply terminal and the neutral wire contact. The second conductive spring passes through the second limiting hole on the top shell, and the second conductive spring elastically abuts against the second power supply end and the swing part.

10. The terminal-centralized push-button switch as described in claim 8, characterized in that, The terminal-centralized push-button switch also includes a ground wire extension piece and / or a neutral wire extension piece; The ground wire extension piece is pressed into the ground wire terminal, and the neutral wire extension piece is pressed into the neutral wire terminal.

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