A double-break switch

Abstract

A kind of double-break switch.The problem of poor on-off capability of existing switch is solved.It includes base: terminal assembly, which is provided on the base, for external lead;Conductive assembly, connected with the terminal assembly, the conductive assembly has at least two groups and is connected with the terminal assembly respectively;Moving contact, for cooperating with the conductive assembly to control circuit conduction or disconnection;The moving contact has at least two pieces, and two moving contacts are respectively arranged corresponding to two groups of conductive assembly;Swing lever, provided in the base, the swing lever has two and is arranged corresponding to the moving contact;Pressing piece, the pressing piece is provided with two mounting columns, two swing levers are inserted into the mounting column of pressing piece and are driven by pressing piece to swing synchronously;Pressing plate, the pressing plate is connected with the base, and the pressing piece is hinged to the pressing plate and swings with the pressing plate.The utility model also has the advantages of simple structure, convenient assembly, reliable action, long service life and the like.

Description

Technical Field

[0001] This utility model relates to a switch, specifically a double-break switch. Background Technology

[0002] The term "switch" is defined as turning on and off. It also refers to an electronic component that can open a circuit, interrupt current, or divert it to another circuit. The most common switches are mechanical devices operated by humans, containing one or more electronic contacts. A "closed" contact indicates that the electronic contacts are conducting, allowing current to flow; an "open" switch indicates that the electronic contacts are not conducting, forming an open circuit and preventing current from flowing. With the increasing number of electrical appliances, switches are used more and more in daily life. High-power appliances such as air conditioners and water heaters often have a main switch to improve safety, which is usually a single-break switch. However, ordinary single-break switches have weak breaking capacity and are prone to arcing, posing certain safety hazards. Utility Model Content

[0003] To address the problems of poor switching capability and poor safety in existing switches in the background art, this utility model provides a double-break switch.

[0004] The technical solution of this utility model is: a double-break switch, including a base, and further comprising: Terminal assembly, located on the base, is used for connecting external wires; A conductive component is connected to a terminal assembly, wherein there are at least two sets of the conductive component and each set is connected to a terminal assembly; A movable contact is used in conjunction with a conductive component to control the circuit to be turned on or off; there are at least two movable contacts, and the two movable contacts are respectively arranged to correspond to two sets of conductive components; A swing arm is located inside the base. There are two swing arms, each corresponding to a movable contact piece. The pressing component has two mounting posts, and the two swing rods are inserted into the mounting posts of the pressing component and are driven by the pressing component to swing synchronously. The pressure plate is connected to the base, and the pressing element is hinged to the pressure plate and swings with the pressure plate.

[0005] As a further improvement of this utility model, the pressure plate is recessed towards the base to form a receiving cavity, the pressing member is disposed in the receiving cavity, and the pressure plate is provided with an indicator for indication.

[0006] As a further improvement of this utility model, the conductive component includes a first conductive element and a second conductive element, the first conductive element and the second conductive element are respectively connected to the terminal assembly, and the first conductive element and / or the moving contact piece are provided with contacts.

[0007] As a further improvement of this utility model, the thickness of the first conductive element, the second conductive element and the moving contact piece is 1.1-1.8mm.

[0008] As a further improvement of this utility model, the thickness of the first conductive element, the second conductive element, and the moving contact piece is 1.4-1.6 mm.

[0009] As a further improvement of this utility model, the terminal assembly includes multiple terminal blocks, which are arranged in groups of two, and the first conductive element and the second conductive element are respectively connected to two different terminal blocks in the same group.

[0010] As a further improvement of this utility model, the terminal block and conductive components are both integrally formed from copper material.

[0011] As a further improvement to this utility model, it also includes: A mounting bracket is provided on the base, and the mounting bracket is provided with mounting holes for installation. A panel is located above the base and covers the outside of the mounting bracket from above; the panel has a through hole for the pressing element to pass through.

[0012] As a further improvement of this utility model, it also includes a grounding terminal, on which a grounding plate is provided, one end of which is located at the mounting hole.

[0013] As a further improvement of this utility model, the outer surface of the base is provided with a groove for limiting the grounding plate, and the grounding plate is wrapped around the base.

[0014] The beneficial effects of this utility model are that it features two movable contact pieces, which can be driven to move synchronously by two rocker arms, achieving synchronous disconnection and connection. The structure is simple, the switching is reliable, and the safety is high. This utility model also has advantages such as simple structure, convenient assembly, reliable operation, and long service life. Attached Figure Description

[0015] Appendix Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0016] Appendix Figure 2 This is a schematic diagram of the structure from another perspective of an embodiment of the present invention.

[0017] Appendix Figure 3 This is a cross-sectional structural diagram of an embodiment of the present utility model.

[0018] Appendix Figure 4 This is an exploded structural diagram of an embodiment of the present invention.

[0019] Appendix Figure 5This is an exploded structural diagram of an embodiment of the present invention.

[0020] Appendix Figure 6 This is a schematic diagram of the terminal assembly in an embodiment of the present invention.

[0021] In the diagram, 1 is the base; 11 is the groove; 2 is the terminal assembly; 21 is the terminal block; 22 is the grounding terminal; 23 is the grounding plate; 3 is the conductive component; 31 is the first conductive element; 32 is the second conductive element; 33 is the contact; 4 is the moving contact; 5 is the rocker arm; 6 is the pressing element; 61 is the mounting post; 7 is the pressure plate; 71 is the receiving cavity; 72 is the indicator; 8 is the mounting bracket; 81 is the mounting hole; 9 is the panel; and 91 is the through hole. Detailed Implementation

[0022] The embodiments of this utility model will be further described below with reference to the accompanying drawings: Depend on Figure 1 Combination Figure 2-6 As shown, a double-break switch includes a base 1, and further includes: Terminal assembly 2, located on base 1, is used for connecting external wires; A conductive component 3 is connected to a terminal component 2, and there are at least two sets of conductive components 3, each of which is connected to a terminal component 2. The movable contact 4 is used to cooperate with the conductive component 3 to control the circuit to be turned on or off; there are at least two movable contact 4s, and the two movable contact 4s are respectively arranged corresponding to two sets of conductive components 3; The swing arm 5 is located inside the base 1. There are two swing arms 5, which are arranged corresponding to the movable contact piece 4. The pressing member 6 is provided with two mounting posts 61, and the two swing rods 5 are inserted into the mounting posts 61 of the pressing member 6 and are driven by the pressing member 6 to swing synchronously. The pressure plate 7 is connected to the base 1, and the pressing member 6 is hinged to the pressure plate 7 and swings with it. The beneficial effects of this invention are that it features two moving contacts, and the pressing member, via two swing rods, can drive the two moving contacts to move synchronously, achieving synchronous disconnection and connection. The structure is simple, the switching is reliable, and the safety is high. This invention also has advantages such as simple structure, convenient assembly, reliable operation, and long service life. Generally, the action of the two moving contacts can simultaneously disconnect the neutral and live wires, making the product safer and more suitable for high-current (high-power) electrical appliances.

[0023] The pressure plate 7 is recessed towards the base 1 to form a receiving cavity 71, and the pressing member 6 is disposed within the receiving cavity 71. The pressure plate 7 is provided with an indicator 72 for indication. This makes the overall product size smaller, the pressing member protruding from the panel by a smaller distance, and allows for more adaptable scenarios.

[0024] The conductive component 3 includes a first conductive element 31 and a second conductive element 32, which are respectively connected to the terminal assembly 2. The first conductive element 31 and / or the moving contact 4 are provided with contacts 33. Typically, silver contacts can be used to increase the contact area and current carrying capacity.

[0025] The thickness of the first conductive element 31, the second conductive element 32, and the moving contact 4 is 1.1-1.8 mm. Specifically, the thickness of the first conductive element 31, the second conductive element 32, and the moving contact 4 is 1.4-1.6 mm. More specifically, the terminal block 21 and the conductive assembly 3 are both integrally formed from copper material. The terminal block of this invention uses copper material, which has a long service life, high current carrying capacity, and low resistance. The copper material thickness of this invention is approximately 1.5 mm, enabling it to be used at a rated current of 45A.

[0026] The terminal assembly 2 includes multiple terminal blocks 21, which are grouped in pairs. The first conductive element 31 and the second conductive element 32 are respectively connected to two different terminal blocks 21 in the same group. This product typically has four terminal blocks, with two terminal blocks forming a group. When the pressing component is pressed, it simultaneously drives the moving contact to disconnect the circuit. When disconnected, both the neutral wire and the live wire are disconnected, improving the product's safety performance.

[0027] This utility model also includes: Mounting bracket 8 is disposed on base 1, and mounting bracket 8 is provided with mounting holes 81 for installation; Panel 9 is located above base 1 and covers the outside of mounting bracket 8 from above; panel 9 has through hole 91 for pressing member 6 to pass through. This structure is easy to install and simple in design.

[0028] This utility model also includes a grounding terminal 22, on which a grounding piece 23 is provided, one end of which is located at the mounting hole 81. The outer surface of the base 1 has a groove 11 for limiting the grounding piece 23, and the grounding piece 23 is disposed around the base 1. This utility model also provides two grounding terminals, resulting in a simpler, more symmetrical product structure, easier installation, and better safety performance. The groove helps to limit the grounding piece, making the overall product more aesthetically pleasing.

[0029] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0031] Please note to all technical personnel: Although this utility model has been described according to the specific embodiments above, the inventive concept of this utility model is not limited to this utility model. Any modification that utilizes the inventive concept will be included within the scope of protection of this utility model patent.

Claims

1. A double-break switch, comprising a base (1), characterized in that: Terminal assembly (2), located on base (1), is used for connecting external wires; The conductive component (3) is connected to the terminal component (2), and there are at least two sets of the conductive component (3) and they are respectively connected to the terminal component (2); The movable contact (4) is used to cooperate with the conductive component (3) to control the circuit to be turned on or off; there are at least two movable contacts (4), and the two movable contacts (4) are respectively set with two sets of conductive components (3); The swing arm (5) is located inside the base (1). There are two swing arms (5) and they are arranged corresponding to the moving contact piece (4). The pressing member (6) is provided with two mounting posts (61), and the two swing rods (5) are inserted into the mounting posts (61) of the pressing member (6) and are driven by the pressing member (6) to swing synchronously. The pressure plate (7) is connected to the base (1), and the pressing member (6) is hinged to the pressure plate (7) and swings with the pressure plate (7).

2. A double-break switch according to claim 1, characterized in that... The pressure plate (7) is recessed towards the base (1) to form a receiving cavity (71), the pressing member (6) is located in the receiving cavity (71), and the pressure plate (7) is provided with an indicator (72) for indication.

3. A double-break switch according to claim 1, characterized in that... The conductive component (3) includes a first conductive element (31) and a second conductive element (32). The first conductive element (31) and the second conductive element (32) are respectively connected to the terminal assembly (2). The first conductive element (31) and / or the moving contact piece (4) are provided with contacts (33).

4. A double-break switch according to claim 3, characterized in that... The thickness of the first conductive element (31), the second conductive element (32) and the moving contact piece (4) is 1.1-1.8 mm.

5. A double-break switch according to claim 4, characterized in that... The thickness of the first conductive element (31), the second conductive element (32) and the moving contact piece (4) is 1.4-1.6 mm.

6. A double-break switch according to claim 3, characterized in that... The terminal assembly (2) includes multiple terminal blocks (21), which are grouped in pairs. The first conductive element (31) and the second conductive element (32) are respectively connected to two different terminal blocks (21) in the same group.

7. A double-break switch according to claim 6, characterized in that... The terminal block (21) and conductive component (3) are both integrally formed from copper material.

8. A double-break switch according to claim 1, characterized in that... Also includes: Mounting bracket (8) is provided on base (1), and mounting bracket (8) is provided with mounting holes (81) for installation. A panel (9) is located above the base (1) and covers the outside of the mounting bracket (8) from above; the panel (9) is provided with a through hole (91) through which the pressing member (6) passes.

9. A double-break switch according to claim 8, characterized in that... It also includes a grounding terminal (22), on which a grounding piece (23) is provided, one end of which is located at the mounting hole (81).

10. A double-break switch according to claim 9, characterized in that... The outer surface of the base (1) is provided with a groove (11) for limiting the grounding piece (23), and the grounding piece (23) is provided outside the base (1).

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