CN219350095U

CN219350095U - High-voltage direct-current relay with auxiliary contacts

Info

Publication number: CN219350095U
Application number: CN202320631995.6U
Authority: CN
Inventors: 邱文辉; 胡伊达; 李永方; 张彭春
Original assignee: XINDA ELECTRIC CO Ltd
Current assignee: XINDA ELECTRIC CO Ltd
Priority date: 2023-03-24
Filing date: 2023-03-24
Publication date: 2023-07-14
Anticipated expiration: 2033-03-24

Abstract

The utility model relates to a high-voltage direct-current relay with auxiliary contacts, which comprises a bottom plate, a shell, an electromagnetic driving mechanism, an energy-saving plate, a ceramic cover, a contact assembly and an auxiliary contact assembly, wherein the contact assembly comprises a movable contact, a spring, two fixed contacts, an upper short-circuit plate, a lower short-circuit plate and a U-shaped bracket, the auxiliary contact assembly comprises an auxiliary movable reed group which is in linkage fit with the U-shaped bracket, and an auxiliary lead-out group which is arranged on the ceramic cover and is matched with the auxiliary movable reed group, the auxiliary movable reed group comprises an insulating seat and a movable reed, the auxiliary lead-out group comprises two lead-out probes, a circuit board which is arranged on the two lead-out probes, a connector which is arranged on the bottom plate and is spliced with the energy-saving plate, and a wire which is connected between the circuit board and the connector, and one end of each of the two lead-out probes is provided with a contact part which extends in a cavity of the ceramic cover and is matched with the movable reed. The utility model has the advantages of simple structure, stable and reliable performance, good insulating performance and high assembly efficiency.

Description

High-voltage direct-current relay with auxiliary contacts

Technical Field

The utility model relates to the technical field of relays, in particular to a high-voltage direct-current relay with auxiliary contacts.

Background

The relay is used as an electronic control device, and the medium (tool) used has electricity, light, magnetism, heat and the like (i.e. input quantity), and the transmission and control are circuits or signals (i.e. output quantity), and the relay is provided with a control system (also known as an input loop) and a controlled system (also known as an output loop), and the two loops are coupled through an internal mechanical or electronic device to realize linkage of states of the two loops. Relays are commonly used in automatic control circuits. The automatic switch is equivalent to an automatic switch, and plays roles of automatic adjustment, safety protection, circuit switching and the like in a circuit. Along with the rapid development of new energy industry, the high-voltage direct-current relay is widely applied to the fields of new energy automobiles, charging corollary equipment, photovoltaic/wind power generation systems, engineering vehicles, UPS and the like. In the vehicle-mounted market, the required mileage is higher and higher, so that the space utilization of the battery is optimized as much as possible, the relay adhesion is more adopted in the early stage, the high-voltage check is adopted, and more customers currently need the relay to have an auxiliary contact function. The structural design of the existing high-voltage direct-current relay with the auxiliary contacts is complex, the insulation distance between the auxiliary contacts and the moving contact is insufficient, so that the insulation between strong and weak currents of the high-voltage direct-current relay is poor, and the extraction structure of the auxiliary contacts cannot be integrated and modularized, so that the assembly is complex.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide the high-voltage direct-current relay with the auxiliary contacts, which has the advantages of simple structure, stable and reliable performance, good insulating performance and high assembly efficiency.

The utility model adopts a high-voltage direct current relay with auxiliary contacts, which comprises a bottom plate, a shell arranged on the bottom plate, an electromagnetic driving mechanism, an energy-saving plate, a ceramic cover arranged on the electromagnetic driving mechanism, a contact assembly arranged in the ceramic cover and an auxiliary contact assembly, wherein the contact assembly comprises a moving contact, a spring, two fixed contacts arranged on the ceramic cover, an upper short-circuit plate, a lower short-circuit plate and a U-shaped bracket, the auxiliary contact assembly comprises an auxiliary moving reed group which is in linkage fit with the U-shaped bracket, an auxiliary leading-out group which is arranged on the ceramic cover and is matched with the auxiliary moving reed group, the auxiliary moving reed group comprises an insulating seat which is in linkage arranged on the U-shaped bracket and a moving reed arranged on the insulating seat, the auxiliary leading-out group comprises two leading-out probes arranged on the ceramic cover, a circuit board arranged on the two leading-out probes, a connector which is arranged on the bottom plate and is spliced with the energy-saving plate, and a wire which is connected between the circuit board and the connector, and one end of the two leading-out probes is provided with a moving reed part which extends in a cavity of the ceramic cover and is in contact with the moving reed.

The beneficial effects of the structure are as follows: the movable reed is arranged on the insulating seat, the insulating seat is separated between the movable contact and the movable reed, the insulating distance between the movable contact and the movable reed can be increased, and the insulating performance between strong and weak current of the direct current relay can be improved. The auxiliary leading-out group adopts a modularized structural design, the auxiliary leading-out group is spliced on the energy-saving plate through the connector, the assembly is more convenient, the leading-out probe is spliced on the circuit board, and the circuit board is connected on the connector through a wire, so that the working reliability of the auxiliary contact assembly is improved. Therefore, the high-voltage direct-current relay has the advantages of simple structure, stable and reliable performance, good insulating performance and high assembly efficiency.

Specifically, two accommodating grooves are formed in the insulating seat, two movable contact parts extending into the two accommodating grooves are respectively arranged at two ends of the movable reed, and movable contacts matched with the two leading-out probes are arranged on the two movable contact parts. The movable reed is arranged in the insulating seat, the insulating seat can increase the insulating distance between the movable reed and the movable contact, the insulating performance between strong and weak currents can be effectively improved, the movable contact of the movable reed is arranged in the accommodating groove, the pollution of an electric arc generated between the movable contact and the fixed contact to the movable reed can be avoided, and the working reliability of the auxiliary contact module can be improved.

Particularly, cambered surface bending protruding parts are respectively arranged on the two movable contact parts of the movable reed. The cambered surface bending protruding part can increase the pre-pressure of the movable reed, so that the movable reed can be contacted with the leading-out probe more reliably.

Specifically, two sides of the insulating seat are respectively provided with a clamping groove, two sides of the U-shaped bracket are respectively provided with a convex strip matched with the clamping grooves, and the convex strips are clamped in the clamping grooves and form clamping fit of the insulating seat and the U-shaped bracket. The U-shaped support and the insulating seat are assembled in a clamping fit mode, so that the movable reed assembly and the U-shaped support can be assembled in a modularized mode, and the assembly efficiency is higher.

Particularly, the insulating seat on correspond two clamping grooves department between be provided with spacing sand grip, spacing sand grip conflict on the U type support, and spacing sand grip one end has the direction inclined plane. The insulation seat is provided with the limit convex strips, so that the insulation seat and the U-shaped support can be assembled more compactly, and the guide inclined plane can play a role in guiding, thereby realizing the rapid assembly of the insulation seat and the U-shaped support.

In particular, one end of the connector is provided with a pin which is spliced with the energy-saving plate, and the other end of the connector is provided with a pin which extends out of the shell. The connector and the energy-saving plate are assembled in an inserting mode, so that the modularization assembly of the auxiliary leading-out group and the connector is convenient to realize, and the assembly efficiency is higher.

Drawings

Fig. 1 is a perspective view of an embodiment of the present utility model.

Fig. 2 is an exploded view of an embodiment of the present utility model.

Fig. 3 is an internal structural diagram of an embodiment of the present utility model.

Fig. 4 is an assembly diagram of an auxiliary movable reed group and a U-shaped bracket according to an embodiment of the present utility model.

Fig. 5 is a perspective view of an auxiliary movable reed group according to an embodiment of the present utility model.

Fig. 6 is a perspective view of a U-shaped bracket according to an embodiment of the present utility model.

Detailed Description

As shown in fig. 1 to 6, the embodiment of the utility model is a high-voltage direct current relay with auxiliary contacts, which comprises a base plate 10, a shell 11 arranged on the base plate 10, an electromagnetic driving mechanism 12, an energy-saving plate 13, a ceramic cover 14 arranged on the electromagnetic driving mechanism 12, a contact assembly 20 arranged in the ceramic cover 14 and an auxiliary contact assembly 30, wherein the contact assembly 20 comprises a movable contact 21, a spring 22, two fixed contacts 23 arranged on the ceramic cover 14, an upper short-circuit plate 24, a lower short-circuit plate 25 and a U-shaped bracket 26, the base plate 10 and the shell 11 are connected in a buckling manner, a containing cavity is formed between the base plate 10 and the shell 11, and the contact assembly 20 and the auxiliary contact assembly 30 are arranged in the containing cavity. The auxiliary contact assembly 30 comprises an auxiliary movable reed group 31 which is in linkage fit with the U-shaped bracket 26, an auxiliary lead-out group 32 which is arranged on the ceramic cover 14 and is matched with the auxiliary movable reed group 31, the auxiliary movable reed group 31 comprises an insulating seat 311 which is arranged on the U-shaped bracket 26 in a linkage manner, and a movable reed 312 which is arranged on the insulating seat 311, the auxiliary lead-out group 32 comprises two lead-out probes 321 which are arranged on the ceramic cover 14, a circuit board 322 which is arranged on the two lead-out probes 321, a connector 323 which is arranged on the bottom plate 10 and is spliced with the energy-saving plate 13, and a wire 324 which is connected between the circuit board 322 and the connector 323, and one end of the two lead-out probes 321 is provided with a contact portion 3210 which extends in a cavity of the ceramic cover 14 and is matched with the movable reed 312. The insulating seat 311 is provided with two accommodating grooves 3110, two movable contact portions 3120 extending into the two accommodating grooves 3110 are respectively disposed at two ends of the movable contact spring 312, and movable contacts 3121 matching with the two extraction probes 321 are disposed on the two movable contact portions 3120. The movable reed is arranged in the insulating seat, the insulating seat can increase the insulating distance between the movable reed and the movable contact, the insulating performance between strong and weak currents can be effectively improved, the movable contact of the movable reed is arranged in the accommodating groove, the pollution of an electric arc generated between the movable contact and the fixed contact to the movable reed can be avoided, and the working reliability of the auxiliary contact module can be improved. The two movable contact portions 3120 of the movable contact spring 312 are respectively provided with a curved bending protruding portion 3122. The cambered surface bending protruding part can increase the pre-pressure of the movable reed, so that the movable reed can be contacted with the leading-out probe more reliably.

As shown in fig. 4, 5 and 6, two sides of the insulating seat 311 are respectively provided with a clamping groove 3111, two sides of the U-shaped bracket 26 are respectively provided with a convex strip 261 matched with the clamping groove 3111, the convex strips 261 are clamped in the clamping grooves 3111, and the insulating seat 311 is matched with the U-shaped bracket 26 in a clamping way. The U-shaped support and the insulating seat are assembled in a clamping fit mode, so that the movable reed assembly and the U-shaped support can be assembled in a modularized mode, and the assembly efficiency is higher. The insulation seat 311 is provided with a limit raised line 3112 corresponding to a position between the two clamping grooves 3111, the limit raised line 3112 is abutted against the U-shaped bracket 26, and one end of the limit raised line 3112 is provided with a guide inclined plane 3113. The insulation seat is provided with the limit convex strips, so that the insulation seat and the U-shaped support can be assembled more compactly, and the guide inclined plane can play a role in guiding, thereby realizing the rapid assembly of the insulation seat and the U-shaped support. One end of the connector 323 is provided with a pin 3231 which is spliced with the energy saving plate 13, and the other end of the connector 323 is provided with a pin 3232 which extends outside the shell 11. The connector and the energy-saving plate are assembled in an inserting mode, so that the modularization assembly of the auxiliary leading-out group and the connector is convenient to realize, and the assembly efficiency is higher.

The movable reed is arranged on the insulating seat, the insulating seat is separated between the movable contact and the movable reed, the insulating distance between the movable contact and the movable reed can be increased, and the insulating performance between the strength and the electricity of the direct current relay can be improved. The auxiliary leading-out group adopts a modularized structural design, the auxiliary leading-out group is spliced on the energy-saving plate through the connector, the assembly is more convenient, the leading-out probe is spliced on the circuit board, and the circuit board is connected on the connector through a wire, so that the working reliability of the auxiliary contact assembly is improved. Therefore, the high-voltage direct-current relay has the advantages of simple structure, stable and reliable performance, good insulating performance and high assembly efficiency. When the electromagnetic relay works, the electromagnetic driving mechanism drives the U-shaped bracket to act, the U-shaped bracket drives the insulating seat to act, the movable reed acts along with the insulating seat, and the movable reed is contacted with the two leading-out probes, so that the auxiliary contact function of the high-voltage direct-current relay is realized.

The foregoing is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. While the utility model has been described with reference to preferred embodiments, it is not intended to be limiting. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or be modified to equivalent embodiments, without departing from the scope of the technology. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. The utility model provides a take auxiliary contact's high voltage direct current relay, includes bottom plate, casing, electromagnetic drive mechanism, energy-conserving board, the ceramic cover of setting on electromagnetic drive mechanism, sets up contact assembly, auxiliary contact assembly in the ceramic cover on the bottom plate, contact assembly include moving contact, spring, set up two fixed contacts on the ceramic cover, go up the short circuit board, U type support down, its characterized in that: the auxiliary contact assembly comprises an auxiliary movable reed group which is in linkage fit with the U-shaped support, an auxiliary lead-out group which is arranged on the ceramic cover and is matched with the auxiliary movable reed group, the auxiliary movable reed group comprises an insulating seat which is arranged on the U-shaped support in a linkage mode and a movable reed which is arranged on the insulating seat, the auxiliary lead-out group comprises two lead-out probes which are arranged on the ceramic cover, a circuit board which is arranged on the two lead-out probes, a connector which is arranged on the bottom plate and is spliced with the energy-saving board, and a wire which is connected between the circuit board and the connector, and one ends of the two lead-out probes are provided with contact parts which extend in a cavity of the ceramic cover and are matched with the movable reed.

2. The high voltage direct current relay with auxiliary contacts according to claim 1, wherein: the insulation seat on be provided with two accommodation grooves, movable reed both ends have respectively and extend two movable contact parts in two accommodation grooves, two movable contact parts on be provided with two draw-out probes matched with movable contact.

3. The high voltage direct current relay with auxiliary contacts according to claim 2, wherein: and cambered surface bending protruding parts are respectively arranged on the two movable contact parts of the movable reed.

4. A high voltage direct current relay with auxiliary contacts according to claim 1 or 2, characterized in that: the insulation seat is characterized in that two sides of the insulation seat are respectively provided with a clamping groove, two sides of the U-shaped support are respectively provided with a convex strip matched with the clamping grooves, and the convex strips are clamped in the clamping grooves and form clamping fit of the insulation seat and the U-shaped support.

5. The high voltage dc relay with auxiliary contacts as claimed in claim 4, wherein: the insulation seat on correspond two clamping grooves department between be provided with spacing sand grip, spacing sand grip conflict on U type support, and spacing sand grip one end has the direction inclined plane.

6. A high voltage direct current relay with auxiliary contacts according to claim 1 or 2, characterized in that: one end of the connector is provided with a contact pin which is inserted into the energy-saving plate, and the other end of the connector is provided with a pin which extends out of the shell.