Change-over switch

Abstract

The utility model relates to a change-over switch which comprises a shell, a sliding piece and a binding post which are arranged in the shell, and a first static contact piece and a second static contact piece which are detachably arranged in the shell, the first static contact piece and the second static contact piece are respectively positioned on the sliding paths of the respective opposite movable contact pieces; the first static contact piece comprises a wiring section, a bending section and a contact section which are integrally formed; the wiring section and the contact section are located on the two sides of the bending section respectively, an included angle A is formed between the wiring section and the bending section, an included angle B is formed between the contact section and the bending section, and the wiring section and the contact section extend in the direction away from each other; the wiring section is arranged in the binding post in a penetrating mode, and the contact section is used for making contact with the opposite movable contact piece. According to the invention, different wiring requirements of users are met, the first static contact piece and the second static contact piece do not need to be replaced, and the cost is saved.

Description

Technical Field

[0001] This application relates to the technical field of switches, and in particular to a changeover switch. Background Technology

[0002] A changeover switch is an electrical device used to switch power between two or more circuits. They are widely used in various applications, such as homes, industrial control systems, and telecommunications systems. The main function of a changeover switch is to allow users to select different power inputs or change the configuration of a circuit.

[0003] One type of changeover switch in the related technology mainly includes a housing, within which a sliding member is movably disposed, and multiple sets of moving contacts are disposed on the sliding member. Also within the housing are fixed stationary contacts opposite to each set of moving contacts. The sliding member drives the moving contacts to contact their respective stationary contacts, thereby switching the corresponding circuit. The housing also has terminals for connecting and fixing external wiring to the stationary contacts, with fasteners threaded onto the terminals, and the stationary contacts passing through the terminals.

[0004] Depending on the wiring location, wiring methods can be broadly categorized into top-entry and bottom-entry methods. When wiring, the shape and material of the wiring material should be considered to select the appropriate method, thereby ensuring the stability and reliability of the wiring. However, once the wiring method of the aforementioned changeover switch is fixed, it cannot be adjusted adaptively, which will bring certain drawbacks to the wiring work. Utility Model Content

[0005] This application provides a changeover switch that allows for convenient and adaptive adjustment of the wiring method, thereby meeting different wiring requirements and saving costs.

[0006] The changeover switch provided in this application adopts the following technical solution:

[0007] A changeover switch includes a housing, a sliding member and a terminal block disposed within the housing, a movable contact on the sliding member, and a first stationary contact and a second stationary contact detachably mounted within the housing. The first stationary contact and the second stationary contact are respectively located on their respective sliding paths of the movable contact. The first stationary contact includes an integrally formed wiring segment, a bent segment, and a contact segment. The wiring segment and the contact segment are respectively located on both sides of the bent segment, forming an angle A between the wiring segment and the bent segment, and forming an angle B between the contact segment and the bent segment. The wiring segment and the contact segment extend in a direction away from each other. The wiring segment passes through the terminal block, and the contact segment is used to contact the opposite movable contact.

[0008] Preferably, the end of the connector segment away from the bend is bent into an inclined guide slope, which is used to guide the wire into the connector post.

[0009] Preferably, both the wiring segment and the second stationary contact piece are provided with anti-slip grooves for contact with the wire.

[0010] Preferably, a third stationary contact piece is further provided inside the housing, wherein the first stationary contact piece and the second stationary contact piece are located on one side of the sliding member, and the third stationary contact piece is located on the other side of the sliding member; a first conductive element and a second conductive element are integrally formed on the third stationary contact piece and are arranged opposite to each other; the first conductive element and the second conductive element are respectively located on their respective opposite sliding paths of the moving contact piece.

[0011] Preferably, a connector is integrally formed on the third stationary contact piece, the connector is inserted into the terminal block, and the outer shell is provided with a plurality of limiting grooves, the limiting grooves being used to limit the connector on the outer shell.

[0012] Preferably, the outer casing is provided with a slide rail, and the sliding member slides and is limited within the outer casing.

[0013] Preferably, an operating handle is rotatably provided on the housing, and the operating handle is used to push the sliding member to slide to a designated position.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] When it is necessary to switch the wiring method of the cable from top to bottom, first remove the first and second stationary contacts from their original installation positions, then rotate the first and second stationary contacts 180° around the wiring direction of the cable, and finally swap the installation positions of the rotated first and second stationary contacts. This will complete the switching of the wiring method between top and bottom, meeting different wiring needs of users, without the need to replace the first and second stationary contacts, thus saving costs.

[0016] The end of the connector away from the bend is bent into an inclined guide surface, which guides the wire to be inserted more smoothly into the terminal block. Both the connector and the second stationary contact are provided with anti-slip grooves for contact with the wire. The anti-slip grooves increase the friction between the surfaces of the connector and the second stationary contact, thereby making the wire more stable and securely fixed in the terminal block. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the incoming line shown in the embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the overall structure of the sliding component;

[0019] Figure 3 yes Figure 1 A schematic diagram of a partial structural explosion;

[0020] Figure 4 This is a schematic diagram highlighting the structure of the first stationary contact piece, the second stationary contact piece, and the third stationary contact piece;

[0021] Figure 5 This is a structural diagram highlighting the inner wall of the outer shell.

[0022] Explanation of reference numerals in the attached drawings: 1. Housing; 10. Limiting groove; 11. Slide rail; 2. Sliding component; 20. Limiting spring; 3. Terminal; 4. Moving contact piece; 5. First stationary contact piece; 50. Wiring segment; 51. Bending segment; 52. Contact segment; 53. Guide slope; 6. Second stationary contact piece; 7. Anti-slip groove; 8. Third stationary contact piece; 80. First conductive component; 81. Second conductive component; 82. Wiring piece; 9. Operating handle. Detailed Implementation

[0023] The present application will be further described in detail below with reference to the accompanying drawings.

[0024] This application discloses a changeover switch.

[0025] Reference Figure 1 , Figure 2 The selector switch includes a housing 1, a sliding member 2 and a terminal block 3 disposed within the housing 1. A slide rail 11 is integrally formed on the inner wall of the central region of the housing 1. The sliding member 2 slides along the length of the slide rail 11 and is confined within the housing 1. An operating handle 9 is rotatably mounted on the housing 1, located along the sliding path of the sliding member 2. One end of the operating handle 9 extends outside the housing 1, and the other end is used to push the sliding member 2 to a designated position. A return spring is provided at the end of the sliding member 2 away from the operating handle 9. The return spring extends and retracts along the sliding direction of the sliding member 2. One end of the return spring abuts against the outer wall of the sliding member 2, and the other end abuts against the inner wall of the housing 1. In its natural state, the return spring pushes the sliding member 2 towards the operating handle 9, and the operating handle 9 abuts against the outer wall of the sliding member 2. A bolt with an M3 diameter is threaded onto the terminal block 3, satisfying a torque of 3.0, further improving the torque magnitude.

[0026] like Figure 2 , Figure 3As shown, the sliding member 2 has two sets of movable contact pieces 4 fixed at its upper limit. The two sets of movable contact pieces 4 are parallel to each other and are arranged alternately along the sliding direction of the sliding member 2. A limit spring 20 is also provided on the sliding member 2 to press and fix the respective movable contact pieces 4 onto the sliding member 2. A first stationary contact piece 5 and a second stationary contact piece 6 located on the same side of the sliding member 2 are detachably installed inside the housing 1. The first stationary contact piece 5 and the second stationary contact piece 6 are respectively located on the sliding path of their respective movable contact pieces 4. When one set of movable contact pieces 4 moves to contact and conduct with the first stationary contact piece 5, the other set of movable contact pieces 4 will separate from the second stationary contact piece 6. Conversely, when one set of movable contact pieces 4 moves to contact and conduct with the second stationary contact piece 6, the other set of movable contact pieces 4 will separate from the first stationary contact piece 5.

[0027] like Figure 4 As shown, the first stationary contact piece 5 includes an integrally formed wiring segment 50, a bent segment 51, and a contact segment 52. The wiring segment 50 and the contact segment 52 are located on the left and right sides of the bent segment 51, respectively. An angle A is formed between the wiring segment 50 and the bent segment 51, and an angle B is formed between the contact segment 52 and the bent segment 51. The wiring segment 50 and the contact segment 52 extend in a direction away from each other. The angles A and B can be bent and set according to actual needs. In this embodiment, the angles A and B are approximately 90°.

[0028] like Figure 3 , Figure 4 As shown, the connecting segment 50 passes through its respective corresponding terminal block 3, while the contact segment 52 extends onto the sliding path of the corresponding moving contact piece 4, and the contact segment 52 is used to contact and conduct with its respective corresponding moving contact piece 4. The end of the connecting segment 50 away from the bending segment 51 is bent into an inclined guide slope 53, which guides the wire to be inserted more smoothly into the terminal block 3. Both the connecting segment 50 and the second stationary contact piece 6 are provided with anti-slip grooves 7 for contact with the wire. The anti-slip grooves 7 can increase the friction between the surface of the connecting segment 50 and the second stationary contact piece 6, thereby making the wire more stable and securely fixed in the terminal block 3.

[0029] like Figure 3 , Figure 4 As shown, both the first stationary contact piece 5 and the second stationary contact piece 6 are fixedly positioned inside the housing 1. When it is necessary to switch the wiring method of the wire from top to bottom, firstly, remove the first stationary contact piece 5 and the second stationary contact piece 6 from their original installation positions. Then, rotate the first stationary contact piece 5 and the second stationary contact piece 6 180° around the wiring direction of the wire. Finally, swap the installation positions of the rotated first stationary contact piece 5 and the second stationary contact piece 6. This completes the switching of the wiring method from top to bottom, meeting different wiring needs of users. There is no need to replace the first stationary contact piece 5 and the second stationary contact piece 6, saving costs.

[0030] like Figure 3 , Figure 4 As shown, a third stationary contact 8 can also be detachably installed inside the outer casing 1. The first stationary contact 5 and the second stationary contact 6 are located on one side of the sliding member 2, while the third stationary contact 8 is located on the other side of the sliding member 2. A first conductive element 80 and a second conductive element 81 are integrally formed on the third stationary contact 8 and are arranged opposite to each other. The first conductive element 80 and the second conductive element 81 gradually extend towards the sliding member 2. The first conductive element 80 and the second conductive element 81 are respectively located on the sliding path of their respective moving contact 4.

[0031] like Figure 4 , Figure 5 As shown, a connector 82 is integrally formed on the third stationary contact 8. The connector 82 passes through its respective corresponding terminal block 3. The outer casing 1 is provided with multiple limiting grooves 10, which are used to limit and fix the connector 82 on the outer casing 1. By bending the connector 82 and then inserting it into the limiting groove 10 at the appropriate position, the wiring method of the connector 82 can be switched between upper and lower wire entry.

[0032] The implementation principle is as follows: When it is necessary to switch the wiring method of the cable from top to bottom, firstly, remove the first stationary contact piece 5 and the second stationary contact piece 6 from their original installation positions. Then, rotate the first stationary contact piece 5 and the second stationary contact piece 6 180° around the wiring direction of the cable. Finally, swap the installation positions of the rotated first stationary contact piece 5 and the second stationary contact piece 6. At this time, the purpose of switching the wiring method of top to bottom can be achieved, which meets the different wiring needs of users. There is no need to replace the first stationary contact piece 5 and the second stationary contact piece 6, thus saving costs.

[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A changeover switch, comprising a housing (1), a sliding member (2) and a terminal block (3) disposed within the housing (1), wherein a movable contact (4) is disposed on the sliding member (2), characterized in that: It also includes a first stationary contact piece (5) and a second stationary contact piece (6) that are detachably installed inside the housing (1). The first stationary contact piece (5) and the second stationary contact piece (6) are respectively located on the sliding path of their respective moving contact pieces (4). The first stationary contact piece (5) includes an integrally formed wiring segment (50), a bending segment (51), and a contact segment (52). The wiring segment (50) and the contact segment (52) are respectively located on both sides of the bending segment (51). An angle A is formed between the wiring segment (50) and the bending segment (51), and an angle B is formed between the contact segment (52) and the bending segment (51). The wiring segment (50) and the contact segment (52) extend in a direction away from each other. The wiring segment (50) passes through the terminal block (3), and the contact segment (52) is used to contact the opposite moving contact piece (4).

2. The changeover switch according to claim 1, characterized in that: The end of the connector segment (50) away from the bend segment (51) is bent into an inclined guide slope (53), which is used to guide the wire into the connector (3).

3. The changeover switch according to claim 2, characterized in that: Both the wiring segment (50) and the second stationary contact piece (6) are provided with anti-slip grooves (7) for contacting the wire.

4. The changeover switch according to claim 1, characterized in that: The outer casing (1) is also provided with a third stationary contact piece (8), the first stationary contact piece (5) and the second stationary contact piece (6) are located on one side of the sliding member (2), and the third stationary contact piece (8) is located on the other side of the sliding member (2); the third stationary contact piece (8) is integrally formed with a first conductive member (80) and a second conductive member (81) arranged opposite to each other; the first conductive member (80) and the second conductive member (81) are respectively located on the sliding path of their respective moving contact pieces (4).

5. The changeover switch according to claim 4, characterized in that: The third static contact piece (8) has an integrally formed terminal block (82), which is inserted into the terminal block (3). The outer shell (1) is provided with a plurality of limiting grooves (10), which are used to limit the terminal block (82) on the outer shell (1).

6. The changeover switch according to claim 1, characterized in that: The outer shell (1) is provided with a slide rail (11), and the sliding member (2) slides and is limited within the outer shell (1).

7. The changeover switch according to claim 6, characterized in that: An operating handle (9) is rotatably provided on the outer shell (1), and the operating handle (9) is used to push the sliding member (2) to slide to a designated position.

Images