High-voltage multi-contact relay

Abstract

The utility model relates to the technical field of electrical equipment, in particular to a high-voltage multi-contact relay, which does not generate relative friction in the process of realizing connection and disconnection of a movable contact and a fixed contact, reduces abrasion between the movable contact and the fixed contact, and is convenient to use and high in reliability and practicability. Comprising a box body and a sealing door, a cavity is formed in the box body, the front end of the box body is an opening, and the sealing door is installed at the opening in the front end of the box body through hinges; and the box further comprises a fixing frame, a plurality of connectors A, a connector B, a wire A, a wiring terminal A, a wire B, a moving mechanism, a movable contact and a plurality of fixed contacts, the connectors A are installed at the right end of the box body, and the types of the connectors A are different.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a high-voltage multi-contact relay. Background Art

[0002] A relay is a device used to control a circuit, and it is widely used in electrical equipment. In the prior art, the invention patent with patent application number 201520432350.5 discloses a multi-contact high-voltage relay driven by a motor, which is mainly composed of a motor, an insulating rocker arm, a moving contact, an insulating plate and a fixed contact. The other end of the insulating rocker arm is equipped with a moving contact made of a phosphor bronze spring sheet, and the moving contact is connected to an insulating wire fixed on the insulating rocker arm. The insulating plate is equipped with three fixed contacts made of brass columns, which are installed on a circular line with the insulating rocker arm as the radius. The fixed contacts are in contact with the moving contacts. When in use, the motor is turned on, and the motor drives the rocker arm to rotate, and the moving contacts are connected. The movable contact is rotated to contact with the fixed contact to realize circuit connection; the inventor believes that there are the following problems during use: in the process of realizing connection and disconnection between the fixed contact and the movable contact, the movable contact needs to be moved on the surface of the fixed contact, and sliding friction will be generated between the movable contact and the static contact during the movement of the movable contact on the surface of the static contact, and the movable contact is made of phosphor bronze spring sheet, so after long-term use, the movable contact and the fixed contact are greatly worn, and poor contact is prone to occur, resulting in a short service life and inconvenience in use, so a multi-contact relay with a longer service life is needed. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a high-voltage multi-contact relay which does not generate relative friction during the process of connecting and disconnecting the moving contact and the fixed contact, reduces the wear between the moving contact and the static contact, is easy to use, and has high reliability and practicality.

[0004] The utility model discloses a high-voltage multi-contact relay, comprising a box body and a sealed door, wherein a chamber is arranged in the box body, the front end of the box body is an opening, and the sealed door is installed at the opening of the front end of the box body through a hinge; the utility model also comprises a fixed frame, a plurality of joints A, a joint B, a wire A, a wiring terminal A, a wire B, a moving mechanism, a moving contact and a plurality of fixed contacts, wherein the plurality of joints A are all installed at the right end of the box body, the plurality of joints A are of different types, the plurality of fixed contacts are all installed on the fixed frame, the fixed frame is fixedly installed in the chamber of the box body, the plurality of fixed contacts are respectively electrically connected to the plurality of joints A, the joint B is installed at the upper end of the box body, the joint B is electrically connected to the wiring terminal A through the wire A, the wiring terminal A is electrically connected to the moving contact through the wire B, and the moving contact is electrically connected to the fixed contact by clamping. The moving contact is installed on a moving mechanism, and the moving mechanism is used to move the moving contact; the output end of the live wire in the external circuit is connected to the connector B, and multiple connectors A are respectively connected to different external electrical devices, and only one of these electrical devices can be turned on at the same time; when a certain electrical device needs to be turned on, the moving contact is moved to the corresponding fixed contact through the moving mechanism, and then the moving contact and the fixed contact are clamped to achieve circuit conduction, thereby turning on the corresponding electrical device; when the moving contact and the static contact are connected, the connection is achieved by clamping and fixing, and no relative friction is generated in the process of connecting and disconnecting the moving contact and the fixed contact, thereby reducing the wear between the moving contact and the static contact, and the use is convenient, and the reliability and practicality are high.

[0005] Preferably, the fixed contact includes a copper column and an insulating layer, the copper column is fixedly mounted on a fixed frame, the insulating layer is wrapped around the right part of the copper column, the left part of the copper column is exposed, and the right end of the copper column is electrically connected to connector A; when the moving contact is electrically connected to the static contact, the moving contact is moved to the corresponding copper column through a moving mechanism, and then the moving contact is clamped to fix the left part of the copper column, and then the moving contact is electrically connected to the corresponding connector A through the corresponding copper column; convenience is improved.

[0006] Preferably, the moving contact comprises a connecting plate, two fixed plates, two electric push rods, two movable plates, two arc-shaped conductive sheets, two wires C and a terminal B, the connecting plate is mounted on a moving mechanism, the moving mechanism is used to move the connecting plate up and down, the two fixed plates are respectively fixedly mounted on the front and rear parts of the connecting plate, the fixed ends of the two electric push rods are respectively fixedly mounted on the two fixed plates, the two movable plates are respectively fixedly mounted on the movable ends of the two electric push rods, the two arc-shaped conductive sheets are respectively fixedly mounted on the two movable plates, the two arc-shaped conductive sheets are respectively electrically connected to the terminal B through the two wires C, the terminal B is electrically connected to the wire B, a controller is provided on the box body, the controller is electrically connected to the two electric push rods, and the controller is used to control the two electric push rods; when the fixed contact is electrically connected to the moving contact, the connecting plate is adjusted in height through the moving mechanism, and then the fixed plate drives the electric push rod and the movable plate to adjust the height, so that the movable plate is adjusted to It is consistent with the height of the corresponding copper column, and then the controller drives the two electric push rods to drive the two moving plates to approach each other, and the two moving plates drive the two arc-shaped conductive sheets to approach each other, so that the two arc-shaped conductive sheets are in close contact with the exposed part of the left part of the copper column, and then the copper column is electrically connected to the terminal B through the two arc-shaped conductive sheets and two wires C, and the terminal B is electrically connected to the wire A through the wire B and the terminal A, and the wire A is electrically connected to the connector B, so that the circuit is turned on; when the arc-shaped conductive sheet is disconnected from the copper column, the two electric push rods drive the two moving plates to move away from each other, so that the two arc-shaped conductive sheets are out of contact with the copper column, and then the copper column and the arc-shaped conductive sheet are disconnected; when the circuit is connected and disconnected, the two arc-shaped conductive sheets can be moved closer to and away from each other, and no friction will be generated between the arc-shaped conductive sheet and the copper column, thereby ensuring the service life of the circuit system, easy to use and high reliability.

[0007] Preferably, the moving mechanism includes an electric slide rail, a lifting plate and a connecting rod, the electric slide rail is fixedly installed in the box, the lifting plate is installed on the electric slide rail, the electric slide rail is used to adjust the height of the lifting plate, the connecting plate is fixedly installed on the lifting plate through the connecting rod, and the terminal A is fixedly installed on the lifting plate; when the height of the connecting plate is adjusted, the electric slide rail is opened, and the electric slide rail can drive the connecting plate to adjust the height through the lifting plate, which facilitates the adjustment of the height of the connecting plate and improves convenience.

[0008] Preferably, an ammeter is also included. The wire A is provided with an ammeter, which is electrically connected to the controller. When in use, the current in the wire A is detected at any time by the ammeter, and the current data is transmitted to the controller. When the current in the wire A is too large, the controller uses two electric push rods to make the two movable plates drive the two arc-shaped conductive sheets to break contact with the copper column, thereby achieving circuit breaking, avoiding accidents caused by excessive current, and ensuring safety.

[0009] Preferably, a heat sink is provided on the box body; through the above arrangement, the heat dissipation effect of the box body is improved.

[0010] Preferably, it also includes a mounting plate, which is mounted on the rear end of the box and is provided with mounting holes. When the box is mounted on a wall, the mounting plate is pressed against the wall, and then bolts are passed through the mounting holes on the mounting plate and screwed to the wall, so that a gap is formed between the box and the wall, thereby ensuring the heat dissipation effect of the rear of the box and improving convenience.

[0011] Preferably, a transparent observation window is provided on the sealed door; through the above arrangement, it is convenient to monitor the operating status of the equipment in the chamber of the box.

[0012] Compared with the prior art, the utility model has the following beneficial effects: no relative friction is generated during the process of realizing the conduction and disconnection between the moving contact and the fixed contact, thereby reducing the wear between the moving contact and the static contact, and is easy to use and has high reliability and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the sealing door, the box body and the joint B;

[0014] Figure 2 It is a first axonometric structural schematic diagram of the utility model;

[0015] Figure 3 It is a second axonometric structural schematic diagram of the utility model;

[0016] Figure 4 It is a schematic diagram of the structure of the electric slide rail, copper column and lifting plate;

[0017] Figure 5 It is a structural diagram of the moving contact and the static contact.

[0018] Markings in the attached figure: 1. Box body; 2. Sealed door; 3. Fixed frame; 4. Connector A; 5. Connector B; 6. Wire A; 7. Terminal A; 8. Wire B; 9. Copper column; 10. Insulation layer; 11. Connecting plate; 12. Fixed plate; 13. Electric push rod; 14. Moving plate; 15. Arc-shaped conductive sheet; 16. Wire C; 17. Terminal B; 18. Electric slide rail; 19. Lifting plate; 20. Connecting rod; 21. Ammeter; 22. Heat sink; 23. Mounting plate; 24. Observation window. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0020] Example 1

[0021] like Figures 1 to 5 The utility model comprises a high-voltage multi-contact relay including a box body 1, a sealing door 2, a fixing frame 3, a plurality of joints A4, a joint B5, a wire A6, a terminal A7, a wire B8, a moving mechanism, a moving contact and a plurality of fixed contacts. A chamber is arranged in the box body 1, the front end of the box body 1 is an opening, the sealing door 2 is installed at the opening of the front end of the box body 1 through a hinge, a plurality of joints A4 are installed at the right end of the box body 1, the types of the plurality of joints A4 are all different, a plurality of fixed contacts are installed on the fixing frame 3, the fixing frame 3 is fixedly installed in the chamber of the box body 1, a plurality of fixed contacts are installed on the fixing frame 3, a plurality of fixed contacts are electrically connected to a plurality of joints A4 respectively, a joint B5 is installed at the upper end of the box body 1, the joint B5 is electrically connected to the terminal A7 through the wire A6, and the terminal A7 is electrically connected to the moving contact through the wire B8. The moving contact is electrically connected to the fixed contact by clamping, the moving contact is installed on a moving mechanism, and the moving mechanism is used to move the moving contact; the output end of the live wire in the external circuit is connected to the connector B5, and multiple connectors A4 are respectively connected to different external electrical devices, and only one of these electrical devices can be turned on at the same time; when a certain electrical device needs to be turned on, the moving contact is moved to the corresponding fixed contact by the moving mechanism, and then the moving contact and the fixed contact are clamped to achieve circuit conduction, so as to turn on the corresponding electrical device; when the moving contact and the static contact are connected, the connection is achieved by clamping and fixing, and no relative friction is generated in the process of connecting and disconnecting the moving contact and the fixed contact, thereby reducing the wear between the moving contact and the static contact, and the use is convenient, and the reliability and practicality are high.

[0022] like Figure 4 and Figure 5 The fixed contact includes a copper column 9 and an insulating layer 10. The copper column 9 is fixedly installed on the fixed frame 3. The insulating layer 10 is wrapped around the right part of the copper column 9. The left part of the copper column 9 is exposed. The right end of the copper column 9 is electrically connected to the connector A4. When the moving contact is electrically connected to the static contact, the moving contact is moved to the corresponding copper column 9 through the moving mechanism, and then the moving contact clamps the left part of the fixed copper column 9, and then the moving contact is electrically connected to the corresponding connector A4 through the corresponding copper column 9. The convenience is improved.

[0023] like Figure 5The moving contact includes a connecting plate 11, two fixed plates 12, two electric push rods 13, two moving plates 14, two arc-shaped conductive sheets 15, two wires C16 and a terminal B17. The connecting plate 11 is installed on a moving mechanism, and the moving mechanism is used to move the connecting plate 11 up and down. The two fixed plates 12 are fixedly installed at the front and back parts of the connecting plate 11 respectively. The fixed ends of the two electric push rods 13 are fixedly installed on the two fixed plates 12 respectively. The two moving plates 14 are fixedly installed at the moving ends of the two electric push rods 13 respectively. The arc-shaped conductive sheets 15 are respectively fixedly mounted on the two moving plates 14. The two arc-shaped conductive sheets 15 are respectively electrically connected to the wiring terminal B17 through two wires C16. The wiring terminal B17 is electrically connected to the wire B8. A controller is provided on the box 1. The controller is electrically connected to the two electric push rods 13. The controller is used to control the two electric push rods 13. When the fixed contact is electrically connected to the moving contact, the connecting plate 11 is adjusted in height through the moving mechanism, and then the fixed plate 12 drives the electric push rod 13 and the moving plate 14 to adjust the height, so that the moving plate 1 4 is adjusted to the same height as the corresponding copper pillar 9, and then the two electric push rods 13 are driven by the controller to drive the two moving plates 14 to approach each other, and the two moving plates 14 bring the two arc-shaped conductive sheets 15 closer to each other, so that the two arc-shaped conductive sheets 15 are in close contact with the exposed part of the left part of the copper pillar 9, and then the copper pillar 9 is electrically connected to the terminal B17 through the two arc-shaped conductive sheets 15 and the two wires C16, and the terminal B17 is electrically connected to the wire A6 through the wire B8 and the terminal A7, and the wire A6 is electrically connected to the connector B5, so that the electrical The circuit is connected; when the arc-shaped conductive sheet 15 is disconnected from the copper column 9, the two movable plates 14 are driven by the two electric push rods 13 to move the two arc-shaped conductive sheets 15 away from each other, so that the two arc-shaped conductive sheets 15 are out of contact with the copper column 9, thereby realizing the disconnection between the copper column 9 and the arc-shaped conductive sheet 15; when realizing the connection and disconnection of the circuit, the two arc-shaped conductive sheets 15 are moved closer to and away from each other, and no friction is generated between the arc-shaped conductive sheet 15 and the copper column 9, thereby ensuring the service life of the circuit system, being easy to use and having high reliability.

[0024] like Figure 4 The moving mechanism includes an electric slide rail 18, a lifting plate 19 and a connecting rod 20. The electric slide rail 18 is fixedly installed in the box body 1, and the lifting plate 19 is installed on the electric slide rail 18. The electric slide rail 18 is used to adjust the height of the lifting plate 19. The connecting plate 11 is fixedly installed on the lifting plate 19 through the connecting rod 20, and the terminal A7 is fixedly installed on the lifting plate 19; when the height of the connecting plate 11 is adjusted, the electric slide rail 18 is opened, and the electric slide rail 18 can drive the connecting plate 11 to adjust the height through the lifting plate 19, so that the connecting rod 20 can facilitate the adjustment of the height of the connecting plate 11 and improve the convenience.

[0025] like Figure 4An ammeter 21 is provided on the wire A6, and the ammeter 21 is electrically connected to the controller; when in use, the current in the wire A6 is detected at any time by the ammeter 21, and the current data is transmitted to the controller. When the current in the wire A6 is too large, the controller uses two electric push rods 13 to make the two movable plates 14 drive the two arc-shaped conductive sheets 15 to break contact with the copper column 9, thereby achieving circuit breaking, avoiding accidents caused by excessive current, and ensuring safety.

[0026] like Figure 2 The box body 1 is provided with a heat sink 22. Through the above arrangement, the heat dissipation effect of the box body 1 is improved.

[0027] A transparent observation window 24 is provided on the sealed door 2; the above arrangement facilitates monitoring of the operating status of the equipment in the chamber of the box 1. The mounting plate 23 is installed at the rear end of the box 1, and the mounting plate 23 is provided with mounting holes; when the box 1 is installed on the wall, the mounting plate 23 is made to be close to the wall, and then the bolts are passed through the mounting holes on the mounting plate 23 and screwed to the wall, so that there is a gap between the box 1 and the wall, which ensures the heat dissipation effect of the rear of the box 1 and improves convenience.

[0028] Example 2

[0029] On the basis of Embodiment 1, the electric push rod 13 may be replaced by a micro oil cylinder, and the movement of the moving plate 14 may also be achieved by the micro oil cylinder.

[0030] It is necessary to add that:

[0031] 1. The lifting plate 19, the connecting plate 11, the fixing plate 12 and the moving plate 14 are all made of insulating materials.

[0032] 2. In this case, the copper column 9 is connected to the live current, while the neutral current is directly connected to the electrical equipment through other wires in the box 1, and the connection structure of the neutral line can adopt the conventional settings in this technical field.

[0033] The copper column 9, electric push rod 13, terminal B17, electric slide rail 18 and ammeter 21 of the high-voltage multi-contact relay of the utility model are all purchased on the market. The technicians in this industry only need to install and operate them according to the accompanying instruction manual, without the need for the technicians in this field to make creative efforts.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A high-voltage multi-contact relay, comprising a housing (1) and a sealed door (2), wherein a chamber is provided in the housing (1), the front end of the housing (1) is an opening, and the sealed door (2) is mounted at the opening at the front end of the housing (1) by means of a hinge; characterized in that: The invention also comprises a fixed frame (3), a plurality of joints A (4), a joint B (5), a wire A (6), a terminal A (7), a wire B (8), a moving mechanism, a moving contact and a plurality of fixed contacts. The plurality of joints A (4) are all mounted on the right end of the box body (1). The plurality of joints A (4) are of different types. The plurality of fixed contacts are all mounted on the fixed frame (3). The fixed frame (3) is fixedly mounted in the chamber of the box body (1). The plurality of fixed contacts are respectively electrically connected to the plurality of joints A (4). The joint B (5) is mounted on the upper end of the box body (1). The joint B (5) is electrically connected to the terminal A (7) via the wire A (6). The terminal A (7) is electrically connected to the moving contact via the wire B (8). The moving contact is electrically connected to the fixed contact by clamping. The moving contact is mounted on the moving mechanism. The moving mechanism is used to move the moving contact.

2. A high voltage multi-contact relay as claimed in claim 1, characterized in that: The fixed contact comprises a copper column (9) and an insulating layer (10); the copper column (9) is fixedly mounted on the fixed frame (3); the insulating layer (10) wraps around the right part of the copper column (9); the left part of the copper column (9) is exposed; and the right end of the copper column (9) is electrically connected to the connector A (4).

3. A high voltage multi-contact relay as claimed in claim 1, characterized in that: The movable contact comprises a connecting plate (11), two fixed plates (12), two electric push rods (13), two moving plates (14), two arc-shaped conductive sheets (15), two wires C (16) and a connecting terminal B (17); the connecting plate (11) is mounted on a moving mechanism, the moving mechanism is used to move the connecting plate (11) up and down, the two fixed plates (12) are respectively fixedly mounted on the front and rear parts of the connecting plate (11), and the fixed ends of the two electric push rods (13) are respectively fixedly mounted on the two fixed plates (1 2), two moving plates (14) are respectively fixedly mounted on the moving ends of the two electric push rods (13), two arc-shaped conductive sheets (15) are respectively fixedly mounted on the two moving plates (14), the two arc-shaped conductive sheets (15) are respectively electrically connected to the wiring terminal B (17) through two wires C (16), the wiring terminal B (17) is electrically connected to the wire B (8), and a controller is arranged on the box body (1), the controller is electrically connected to the two electric push rods (13), and the controller is used to control the two electric push rods (13).

4. A high voltage multi-contact relay as claimed in claim 3, characterized in that: The moving mechanism comprises an electric slide rail (18), a lifting plate (19) and a connecting rod (20); the electric slide rail (18) is fixedly mounted in the box body (1); the lifting plate (19) is mounted on the electric slide rail (18); the electric slide rail (18) is used to adjust the height of the lifting plate (19); the connecting plate (11) is fixedly mounted on the lifting plate (19) via the connecting rod (20); and the connecting terminal A (7) is fixedly mounted on the lifting plate (19).

5. A high voltage multi-contact relay as claimed in claim 3, characterized in that: It also includes an ammeter (21), the ammeter (21) is arranged on the wire A (6), and the ammeter (21) is electrically connected to the controller.

6. A high voltage multi-contact relay as claimed in claim 1, characterized in that: The box body (1) is provided with a heat sink (22).

7. A high voltage multi-contact relay as claimed in claim 1, characterized in that: It also includes a mounting plate (23), which is mounted on the rear end of the box body (1), and a mounting hole is provided on the mounting plate (23).

8. A high voltage multi-contact relay as claimed in claim 1, characterized in that: The sealed door (2) is provided with a transparent observation window (24).

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