A press switch structure with a ball abutting

Abstract

The utility model discloses a kind of press switch structures of marble abutment, including fixedly connected base and cover, the side wall of base is provided with the static contact and movable support connected with external wire;Pressing rod is provided in base and projects the top wall of base, reset spring is fixed between the bottom end of pressing rod and the bottom wall of the inner chamber of base, and the side wall of pressing rod is fixed with marble structure;The inside of movable support is rotatably connected with movable contact piece, marble structure is located on the side of movable contact piece, when pressing rod presses, marble structure drives movable contact piece to rotate on movable support and is connected with static contact electrically.The utility model is reasonable in structure, improves the stability and reliability of control, there is larger space between pressing rod and the bottom wall of the inner chamber of base, satisfies large current on-off control operation, is favorable to prevent arc, avoids preventing contact point bonding, improves the effectiveness and reliability of switch control, greatly improves the service life of switch, control is stable and reliable.

Description

Technical Field

[0001] This utility model belongs to the field of switch technology, specifically relating to a push-button switch structure with a ball bearing contact. Background Technology

[0002] A push-button switch is a common electronic component, mainly used to switch the conduction or disconnection of electronic signals or power through pressing or switching to realize the control operation of electronic products. It generally includes a housing, a positive conductive terminal, a negative conductive terminal, a pressing rod, and a spring, as shown in CN202221433683.6. Although it can meet the general use requirements, its structure is relatively complex and it cannot realize high current on / off control operation, which will affect its stability and effectiveness to a certain extent, thus limiting its applicability. Utility Model Content

[0003] The purpose of this invention is to provide a push-button switch structure with a reasonable structural design and stable and reliable control.

[0004] The technical solution to achieve the purpose of this utility model is a push-button switch structure with a ball contact, including a fixedly connected base and a cover, wherein a stationary contact and a moving bracket connected to an external wire are provided on the side wall of the base.

[0005] The base is provided with a pressing rod that extends out of the top wall of the base. A return spring is fixed between the bottom end of the pressing rod and the bottom wall of the inner cavity of the base. A ball bearing structure is fixed on the side wall of the pressing rod.

[0006] A movable contact piece is rotatably connected to the inner side of the movable bracket. The ball structure abuts against the side of the movable contact piece. When the pressing rod is pressed, the ball structure drives the movable contact piece to rotate on the movable bracket and make contact with the stationary contact for electrical connection.

[0007] A further preferred embodiment is that the ball bearing structure includes a cylindrical protrusion, a steel ball spring, a steel ball, and a limiting pressure ring;

[0008] The end of the cylindrical protrusion is integrally formed on the side of the pressing rod. The steel ball and the steel ball spring are located inside the cylindrical protrusion. The limiting pressure ring is fixed at the opening of the cylindrical protrusion. Under the action of the steel ball spring, the outer end of the steel ball extends out of the outer side of the limiting pressure ring and abuts against the side of the moving contact piece.

[0009] A further preferred embodiment is that the moving contact piece includes a vertical plate and an inclined piece integrally formed on the bottom edge of the vertical plate and inclined away from the stationary contact;

[0010] A semi-circular convex shaft is integrally formed on the symmetrical side of the connection between the vertical plate and the inclined plate;

[0011] The inner end of the moving bracket is integrally formed with a C-shaped connecting part, and a semi-circular groove is provided on the end edge of the C-shaped connecting part.

[0012] The vertical plate is located within the C-shaped connecting part, and the semi-circular convex shaft is rotatably located within the semi-circular groove;

[0013] When the pressing rod is pressed, the steel ball abuts against the side of the inclined plate, making the inclined plate contact and conduction with the stationary contact. When the pressing rod is reset, the steel ball abuts against the side of the vertical plate, making the inclined plate disconnect from the stationary contact.

[0014] A further preferred embodiment is that both the inclined plate and the stationary contact are fixed with conductive contacts;

[0015] The inclined plate and the stationary contact are electrically connected through conductive contacts.

[0016] A further preferred embodiment is that the upper part of the pressing rod is provided with an annular groove;

[0017] The upper part of the pressing rod is fitted with a horn-shaped silicone dust cover. The upper part of the horn-shaped silicone dust cover is positioned in the annular groove, and the bottom edge of the horn-shaped silicone dust cover is attached to the top surface of the base.

[0018] A further preferred embodiment is that both the base and the cover are insulating plastic structural components.

[0019] This utility model has the following positive effects: The structure of this utility model is reasonable, with few components in its overall structure. A movable contact piece is rotatably connected to the movable bracket, and together with a pressing rod, a return spring, and a ball bearing structure, the movable contact piece is driven by the ball bearing structure to achieve the connection or disconnection of the stationary contact when pressed, which improves the stability and reliability of the control. In addition, there is a large space between the pressing rod and the bottom wall of the inner cavity of the base, which can meet the needs of high current switching control operation and can achieve rapid closing, which helps to prevent the generation of electric arcs, avoid contact sticking, improve the effectiveness and reliability of switch control, and greatly extend the service life of the switch. The control is stable and reliable, and the applicability is strong.

[0020] The moving contact includes a vertical plate and an inclined piece integrally formed on the bottom edge of the vertical plate and inclined away from the stationary contact. The rocker plate method can improve the current carrying capacity and the temperature rise during connection is low, which is conducive to improving the stability and effectiveness of use.

[0021] The upper part of the press lever is fitted with a flared silicone dust cover, which can prevent dust from entering the base from the connection between the press lever and the base, thus improving dustproof performance and making it highly versatile. Attached Figure Description

[0022] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0025] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the movable support and movable contact piece in this utility model.

[0027] Reference numerals: 1. Base; 2. Cover; 3. Stationary contact; 4. Moving bracket; 5. Pressing rod; 6. Return spring; 7. Ball bearing structure; 71. Cylindrical protrusion; 72. Steel ball spring; 73. Steel ball; 74. Limiting ring; 8. Moving contact piece; 81. Vertical plate; 82. Inclined piece; 83. Semi-circular convex shaft; 9. C-shaped connecting part; 10. Semi-circular groove; 11. Conductive contact; 12. Annular slot; 13. Horn-shaped silicone dust cover. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example

[0030] See Figures 1 to 4 As shown, a push-button switch structure with a ball contact includes a fixed base 1 and a cover 2. A stationary contact 3 and a movable support 4, which are connected to an external wire, are provided on the side wall of the base. Both the base and the cover are insulating plastic components. The base and cover are fixed by a snap-fit ​​method, and the stationary contact and the movable support are both conductive springs.

[0031] Furthermore, in this embodiment, a pressing rod 5 extending out of the top wall of the base is provided inside the base. A return spring 6 is fixed between the bottom end of the pressing rod and the bottom wall of the inner cavity of the base. A ball bearing structure 7 is fixed on the side wall of the pressing rod. The pressing rod is an insulating structural component, and the length of its return spring can be set as needed. That is, the pressing length of the pressing rod is relatively large, which can meet the usage requirements of different situations.

[0032] In this embodiment, a movable contact piece 8 is rotatably connected to the inner side of the movable bracket. The ball bearing structure abuts against the side of the movable contact piece. When the pressing rod is pressed, the ball bearing structure drives the movable contact piece to rotate on the movable bracket and make electrical contact with the stationary contact. The movable contact piece is a structure of conductive copper sheet, which is a prior art structure.

[0033] Furthermore, in this embodiment, the ball bearing structure includes a cylindrical protrusion 71, a steel ball spring 72, a steel ball 73, and a limiting pressure ring 74. During processing, the end of the cylindrical protrusion is integrally formed on the side of the pressing rod. The steel ball and the steel ball spring are located inside the cylindrical protrusion, and the limiting pressure ring is fixed at the opening of the cylindrical protrusion. Under the action of the steel ball spring, the outer end of the steel ball extends out of the outer side of the limiting pressure ring and abuts against the side of the moving contact piece. The movement of the moving contact piece, driven by the steel ball, achieves the action of conducting or de-energizing the circuit.

[0034] In this embodiment, the moving contact piece includes a vertical plate 81 and an inclined piece 82 integrally formed on the bottom edge of the vertical plate and inclined away from the stationary contact. A semi-circular convex shaft 83 is integrally formed on the symmetrical side of the connection between the vertical plate and the inclined piece. The vertical plate and the inclined piece form a certain angle, thereby achieving the effect of a rocker plate.

[0035] In practical applications, the inner end of the moving bracket is integrally formed with a C-shaped connecting part 9, and a semi-circular groove 10 is provided on the end edge of the C-shaped connecting part. During assembly, the vertical plate is located inside the C-shaped connecting part, and the semi-circular convex shaft is rotatably located within the semi-circular groove. When the pressing rod is pressed, the steel ball abuts against the side of the inclined plate, making the inclined plate contact and conduction with the stationary contact. When the pressing rod is reset, the steel ball abuts against the side of the vertical plate, making the inclined plate disconnect from the stationary contact. When the steel ball is pressed, it causes the moving contact plate to tilt upwards around the semi-circular convex shaft, ensuring the effectiveness of the moving contact and stationary contact in conducting or disconnecting electricity.

[0036] In this embodiment, both the inclined plate and the stationary contact are fixed with conductive contacts 11; the inclined plate and the stationary contact are electrically connected through the conductive contacts.

[0037] Furthermore, in this embodiment, the upper part of the pressing rod is provided with an annular groove 12; a flared silicone dust cover 13 is fitted onto the upper part of the pressing rod, the upper part of the flared silicone dust cover is positioned within the annular groove, and the bottom edge of the flared silicone dust cover is attached to the top surface of the base. This helps to improve dustproof performance.

[0038] This utility model has the following positive effects: The structure of this utility model is reasonable, with few components in its overall structure. A movable contact piece is rotatably connected to the movable bracket, and together with a pressing rod, a return spring, and a ball bearing structure, the movable contact piece is driven by the ball bearing structure to achieve the connection or disconnection of the stationary contact when pressed, which improves the stability and reliability of the control. In addition, there is a large space between the pressing rod and the bottom wall of the inner cavity of the base, which can meet the needs of high current switching control operation and can achieve rapid closing, which helps to prevent the generation of electric arcs, avoid contact sticking, improve the effectiveness and reliability of switch control, and greatly extend the service life of the switch. The control is stable and reliable, and the applicability is strong.

[0039] The moving contact includes a vertical plate and an inclined piece integrally formed on the bottom edge of the vertical plate and inclined away from the stationary contact. The rocker plate method can improve the current carrying capacity and the temperature rise during connection is low, which is conducive to improving the stability and effectiveness of use.

[0040] The upper part of the press lever is fitted with a flared silicone dust cover, which can prevent dust from entering the base from the connection between the press lever and the base, thus improving dustproof performance and making it highly versatile.

[0041] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural parts described in the instruction manual can also be processed without any doubt based on existing technical common sense. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0042] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. However, these obvious variations or modifications derived from the essential spirit of this utility model still fall within the protection scope of this utility model.

Claims

1. A push-button switch structure with a ball-shaped contact, comprising a base and a cover fixedly connected, characterized in that: The base has a stationary contact and a moving bracket on its side wall for connection with external wires. The base is provided with a pressing rod that extends out of the top wall of the base. A return spring is fixed between the bottom end of the pressing rod and the bottom wall of the inner cavity of the base. A ball bearing structure is fixed on the side wall of the pressing rod. A movable contact piece is rotatably connected to the inner side of the movable bracket. The ball structure abuts against the side of the movable contact piece. When the pressing rod is pressed, the ball structure drives the movable contact piece to rotate on the movable bracket and make contact with the stationary contact for electrical connection.

2. The push-button switch structure with ball contact according to claim 1, characterized in that: The ball bearing structure includes a cylindrical protrusion, a steel ball spring, a steel ball, and a limiting pressure ring; The end of the cylindrical protrusion is integrally formed on the side of the pressing rod. The steel ball and the steel ball spring are located inside the cylindrical protrusion. The limiting pressure ring is fixed at the opening of the cylindrical protrusion. Under the action of the steel ball spring, the outer end of the steel ball extends out of the outer side of the limiting pressure ring and abuts against the side of the moving contact piece.

3. The push-button switch structure with ball contact according to claim 2, characterized in that: The moving contact includes a vertical plate and an inclined piece integrally formed on the bottom edge of the vertical plate and inclined away from the stationary contact. A semi-circular convex shaft is integrally formed on the symmetrical side of the connection between the vertical plate and the inclined plate; The inner end of the moving bracket is integrally formed with a C-shaped connecting part, and a semi-circular groove is provided on the end edge of the C-shaped connecting part. The vertical plate is located within the C-shaped connecting part, and the semi-circular convex shaft is rotatably located within the semi-circular groove; When the pressing rod is pressed, the steel ball abuts against the side of the inclined plate, making the inclined plate contact and conduction with the stationary contact. When the pressing rod is reset, the steel ball abuts against the side of the vertical plate, making the inclined plate disconnect from the stationary contact.

4. The push-button switch structure with ball contact according to claim 3, characterized in that: Both the inclined plate and the stationary contact are fixed with conductive contacts. The inclined plate and the stationary contact are electrically connected through conductive contacts.

5. The push-button switch structure with ball contact according to claim 1, characterized in that: The upper part of the pressing rod is provided with an annular groove; The upper part of the pressing rod is fitted with a horn-shaped silicone dust cover. The upper part of the horn-shaped silicone dust cover is positioned in the annular groove, and the bottom edge of the horn-shaped silicone dust cover is attached to the top surface of the base.

6. The push-button switch structure with ball contact according to claim 2, characterized in that: Both the base and the cover are insulated plastic structural components.

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