CN219497676U - Non-sealing high-voltage direct-current relay with auxiliary contact of micro switch - Google Patents

Abstract

The utility model relates to a non-sealing high-voltage direct-current relay with auxiliary contacts of a micro switch, which comprises a base, a shell arranged on the base, an electromagnetic assembly and a contact system, wherein the electromagnetic assembly comprises a yoke, a coil rack, a coil, an iron core, an armature and a tension spring, the contact system comprises a movable reed, a movable contact and two fixed contacts, the base is internally provided with the auxiliary contact assembly matched with the movable reed, the auxiliary contact assembly comprises a push rod which is arranged in the base in a sliding manner and is in linkage fit with the movable reed, and the micro switch which is arranged in the base and is matched with the push rod, the micro switch is provided with pins extending out of the base, and the push rod moves along with the movable reed and can trigger the micro switch, and can realize the connection or disconnection of the micro switch. The utility model has the advantages of simple structure, stable and reliable performance, good insulating performance and large creepage distance.

Description

Non-sealing high-voltage direct-current relay with auxiliary contact of micro switch

Technical Field

The utility model relates to the technical field of relays, in particular to a non-sealing type high-voltage direct-current relay with a micro-switch auxiliary contact.

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 non-sealing type high-voltage direct current relay has the advantages that the creepage distance between the high voltage and the low voltage is larger when the load voltage is higher due to the requirements of pollution level, volume, space miniaturization and the like, and the design is more difficult. The auxiliary contact of the existing non-sealing high-voltage direct current relay is matched with an auxiliary leading-out probe by adopting an auxiliary movable reed, the auxiliary contact is exposed, the creepage distance is smaller, and the insulating property is poorer. Therefore, the auxiliary contact of the structural design cannot meet the miniaturization requirement of the non-sealing high-voltage direct-current relay.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide the non-sealing type high-voltage direct current relay with the auxiliary contact of the micro switch, which has the advantages of simple structure, stable and reliable performance, good insulating property and large creepage distance.

In order to achieve the above purpose, the utility model adopts the non-sealing high-voltage direct-current relay with the auxiliary contact of the micro switch, which comprises a base, a shell arranged on the base, an electromagnetic component and a contact system, wherein the electromagnetic component comprises a yoke, a coil rack arranged on the yoke, a coil arranged on the coil rack, an iron core arranged in the coil rack, an armature arranged on the yoke in a rotating way and a tension spring arranged between the armature and the yoke, the contact system comprises a movable reed in linkage fit with the armature, a movable contact arranged on the movable reed, and two fixed contacts arranged on the base and matched with the movable contact, an auxiliary contact component matched with the movable reed is arranged in the base, the auxiliary contact component comprises a push rod arranged in the base in a sliding way and matched with the movable reed, and a micro switch arranged in the base and matched with the push rod, the micro switch is provided with a pin extending out of the base, and the push rod can follow the movable reed and trigger the micro switch to be switched on or off.

The beneficial effects of the structure are as follows: the auxiliary contact assembly adopts a structure that a micro switch replaces a driven auxiliary movable reed and an auxiliary leading-out probe, the contact of the micro switch is not exposed, the insulating performance is better, and the creepage distance is larger. And the push rod of the auxiliary contact assembly is matched with the movable reed, and the movable reed can trigger the micro switch through the push rod, so that the auxiliary contact function of the high-voltage direct-current relay is realized. The high-voltage direct current relay has the advantages of simple structure, stable and reliable performance, good insulating property and large creepage distance.

Particularly, the push rod is provided with a limiting block, one side of the push rod corresponding to the limiting block is provided with a guide rod, the guide rod is provided with a curved surface abutting part matched with a contact piece of the micro switch, a guide groove matched with the guide rod is formed in the base, and the guide rod is inserted in the guide groove and is in sliding connection fit with the base. The push rod is provided with the guide groove which is arranged in the base in a sliding way, so that the push rod and the base are convenient to assemble, the push rod can reliably slide in the base, and the improvement of the working reliability of the auxiliary contact assembly is facilitated.

In particular, two contact points corresponding to the moving contact and the two fixed contacts in the base are respectively provided with a magnetic steel. The magnetic steel can increase the magnetic fields at the two contact points, which is beneficial to improving the arc extinguishing performance of the high-voltage direct-current relay.

Particularly, two coil pins are respectively arranged on the base, two plug connectors connected with the coil are arranged on the coil frame, one ends of the two coil pins are respectively plugged in the two plug connectors, and the other ends of the two coil pins are respectively provided with a pin part extending out of the base. The coil is connected with two coil pins through the plug connector, so that the connection between the coil and the coil pins is facilitated, and the assembly is more convenient.

Specifically, one end of the plug connector is provided with a welding foot part connected with the coil, the other end of the plug connector is provided with two contact pieces, a plug cavity is formed between the two contact pieces, and the coil pin is inserted in the plug cavity and forms clamping fit between the plug connector and the coil pin. The coil pins are connected with the plug connector in a plug-in mode, so that the assembly of the plug connector and the coil pins is convenient, and the assembly is more convenient.

Drawings

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

Fig. 2 is a cross-sectional view of an embodiment of the present utility model.

Fig. 3 is an exploded view of an embodiment of the present utility model.

Fig. 4 is an assembly diagram of an auxiliary contact assembly and a base according to an embodiment of the present utility model.

Fig. 5 is a perspective view of an electromagnetic assembly according to an embodiment of the present utility model.

Detailed Description

As shown in fig. 1 to 5, an embodiment of the present utility model is a non-sealing type high-voltage direct current relay with auxiliary contacts of a micro switch, which comprises a base 10, a housing 11 arranged on the base 10, an electromagnetic assembly 20 and a contact system 30, wherein the electromagnetic assembly 20 comprises a yoke 21, a coil frame 22 arranged on the yoke 21, a coil 220 arranged on the coil frame 22, an iron core 23 arranged in the coil frame 22, an armature 24 arranged on the yoke 21 in a rotating manner, a tension spring 25 arranged between the armature 24 and the yoke 21, the contact system 30 comprises a movable reed 31 in linkage with the armature 24, a movable contact 32 arranged on the movable reed 31, and two fixed contacts 33 arranged on the base 10 and matched with the movable contact 32, an auxiliary contact assembly 40 matched with the movable reed 31 is arranged in the base 10, the auxiliary contact assembly 40 comprises a push rod 41 arranged in the base 10 in sliding manner and matched with the movable reed 31, a micro switch 42 arranged in the base 10 and matched with the push rod 41, and the movable reed 42 is provided with a movable reed 421 extending outside the base 42 and can realize the movable reed 42 or the movable reed 42. The push rod 41 is provided with a limiting block 411, one side of the push rod 41 corresponding to the limiting block 411 is provided with a guide rod 412, the guide rod 412 is provided with a curved surface abutting part 4121 matched with a contact piece 422 of the micro switch 42, the base 10 is internally provided with a guide groove 101 matched with the guide rod 412, and the guide rod 412 is inserted into the guide groove 101 and is matched with the base 10 in a sliding connection way. The push rod is provided with the guide groove which is arranged in the base in a sliding way, so that the push rod and the base are convenient to assemble, the push rod can reliably slide in the base, and the improvement of the working reliability of the auxiliary contact assembly is facilitated. Two contact points corresponding to the moving contact 32 and the two fixed contacts 33 in the base 10 are respectively provided with a magnetic steel 12. The magnetic steel can increase the magnetic fields at the two contact points, which is beneficial to improving the arc extinguishing performance of the high-voltage direct-current relay.

As shown in fig. 3 and 5, two coil pins 13 are respectively disposed on the base 10, two connectors 14 connected to the coil 220 are disposed on the coil frame 22, one ends of the two coil pins 13 are respectively connected to the connectors 14, and the other ends of the two coil pins 13 are respectively provided with a pin portion 131 extending outside the base 10. The coil is connected with two coil pins through the plug connector, so that the connection between the coil and the coil pins is facilitated, and the assembly is more convenient. One end of the plug 14 is provided with a welding leg 141 connected with the coil 220, the other end of the plug 14 is provided with two contact sheets 142, a plug cavity 140 is formed between the two contact sheets 142, the coil pin 13 is inserted into the plug cavity 410, and the plug 14 is matched with the coil pin 13 in a clamping way. The coil pins are connected with the plug connector in a plug-in mode, so that the assembly of the plug connector and the coil pins is convenient, and the assembly is more convenient.

The auxiliary contact assembly adopts a structure that a micro switch replaces a driven auxiliary movable reed and an auxiliary leading-out probe, the contact of the micro switch is not exposed, the insulating performance is better, and the creepage distance is larger. And the push rod of the auxiliary contact assembly is matched with the movable reed, and the movable reed can trigger the micro switch through the push rod, so that the auxiliary contact function of the high-voltage direct-current relay is realized. The high-voltage direct current relay has the advantages of simple structure, stable and reliable performance, good insulating property and large creepage distance.

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 (5)

1. The utility model provides a take non-sealed high voltage direct current relay of micro-gap switch auxiliary contact, includes the base, sets up casing, electromagnetic component, the contact system on the base, electromagnetic component include yoke, set up coil former on the yoke, set up the coil on the coil former, set up iron core in the coil former, rotate the armature that sets up on the yoke, set up the extension spring between armature and yoke, its characterized in that: the contact system comprises a movable spring matched with an armature, a movable contact arranged on the movable spring, two fixed contacts arranged on a base and matched with the movable contact, an auxiliary contact component matched with the movable spring is arranged in the base, the auxiliary contact component comprises a push rod which is arranged in the base in a sliding manner and matched with the movable spring in a linkage manner, and a micro switch which is arranged in the base and matched with the push rod, the micro switch is provided with a pin extending out of the base, and the push rod moves with the movable spring and can trigger the micro switch, and can realize the connection or disconnection of the micro switch.

2. The non-hermetic high voltage direct current relay with auxiliary contacts for micro-switches according to claim 1, wherein: the push rod on have the stopper, push rod on correspond stopper one side and have the guide bar, have on the guide bar with micro-gap switch's contact matched with curved surface conflict portion, the base in be provided with guide bar matched with guide slot, the guide bar alternate in the guide slot, and constitute the sliding connection cooperation of guide bar and base.

3. The non-hermetic high voltage direct current relay with auxiliary contacts for micro-switches according to claim 1 or 2, characterized in that: and two magnetic steels are respectively arranged in the base corresponding to the two contact points of the moving contact and the two fixed contacts.

4. The non-hermetic high voltage direct current relay with auxiliary contacts for micro-switches according to claim 1 or 2, characterized in that: the base on be provided with two coil pins respectively, the coil frame on be provided with two connectors that are connected with the coil, two coil pin one end peg graft respectively in two connectors, two coil pin other ends have the prong portion that extends outside the base respectively.

5. The non-hermetic high voltage direct current relay with auxiliary contacts for micro-switches according to claim 4, wherein: one end of the plug connector is provided with a welding foot part connected with the coil, the other end of the plug connector is provided with two contact pieces, a plug cavity is formed between the two contact pieces, and the coil pin is inserted in the plug cavity and forms clamping fit between the plug connector and the coil pin.