CN210272203U - Relay - Google Patents

Abstract

The utility model discloses a relay belongs to relay technical field, including shell, contact site, magnetic circuit part, base and propelling movement card, contact site is including two sets of normally closed static reed subassemblies, two sets of normally open static reed subassemblies and two sets of movable reed subassemblies, and each subassembly is provided with a check on the base and keeps off protruding muscle with the cartridge mode base of packing into respectively, is provided with a check on the shell and keeps off the recess, and after the relay assembly, the protruding muscle of check fender inserts the check and keeps off the recess, has realized the sealed of relay. The advantage is under the prerequisite that does not change original product appearance, uses the insulating plastics more reliable than the air insulation, and the requirement of satisfying the customer to relay insulation resistance that is more convenient is simultaneously the utility model discloses a from top to bottom is sealed to inserting the structure realization, has strengthened the insulating wall between two sets of contacts.

Description

Relay

Technical Field

The utility model relates to a relay technical field, concretely relates to relay.

Background

A relay is an electric control device that generates a predetermined step change in a controlled amount in an electric output circuit when a change in an input amount meets a predetermined requirement. It has an interactive relationship between the control system and the controlled system. It is commonly used in automated control circuits, which are actually a "recloser" that uses low current to control high current operation. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like.

In order to meet the use requirements of household electrical appliance customers, a certain voltage-resistant insulating capacity is required between two groups of contact loops of the relay, and the voltage-resistant insulating capacity is generally required to reach 2500 VAC. The pressure resistance of the product is related to the air gap between two groups of conductors, the larger the gap is, the higher the pressure resistance is, so the requirement can be met only by continuously increasing the air gap between two groups of contacts, and in order to meet the insulation capacity of 2500VAC, the air gap between two groups needs to be increased to more than 3 mm; however, in the actual situation, the insulation between the two groups cannot be set completely according to the theoretical value, burrs may exist on parts, and due to the principle of point discharge, a gap larger than the theoretical value needs to be reserved for products; in addition, the insulation is realized by only depending on the air gap, the air gap or creepage distance between the double groups needs to be increased, but the microminiature relay is limited by the volume and has no improvement space.

Disclosure of Invention

The utility model aims at the above-mentioned among the prior art not enough, provide a relay, under the prerequisite that does not change original product appearance, use more reliable insulating plastics than the air insulation, more convenient satisfying customer is to relay insulation resistance's requirement, simultaneously the utility model discloses a from top to bottom realize sealedly to inserting the structure, has strengthened the insulating wall between two sets of contacts.

In order to achieve the above object, the utility model provides a following technical scheme: a novel relay comprises a shell 10, a contact part, a magnetic circuit part, a base 13 and a push card 4, and is characterized in that: the contact part comprises two groups of normally closed static reed assemblies, two groups of normally open static reed assemblies and two groups of movable reed assemblies, each assembly is respectively installed in a base 13 in a plug-in mounting mode, a grid blocking convex rib 12 is arranged on the base 13, the grid blocking convex rib 12 is arranged in the middle of the contact part, a grid blocking groove 11 is arranged on a shell 10, the grid blocking groove 11 is arranged in the middle of the contact part, the grid blocking convex rib 12 is inserted in the grid blocking groove 11, and the magnetic circuit part comprises a framework 5, a bobbin 6, a yoke 7 and an armature 9.

Preferably, the magnetic circuit portion includes a bobbin 5, a bobbin 6, a yoke 7, and an armature 9. The beneficial effects are that: the result is simple, and the maintenance is easy.

Preferably, the block ribs 12 are made of an insulating material. The beneficial effects are that: compared with air insulation, the plastic insulating material is more reliable and has better insulating effect.

Preferably, the push card 4 is disposed on the upper portion of the magnetic circuit portion, one end of the push card is provided with two arms along the moving direction of the push card, the opposite inner sides of the two arms are respectively provided with a slot, and the middle of each slot is respectively provided with a bump. The beneficial effects are that: the design can avoid the disadvantages caused by the original unbalanced design.

Preferably, the base 13 and the housing 10 are in a vertically inserted structure. The beneficial effects are that: the design can realize the sealing of the relay and increase the insulation and the separation between two groups.

Preferably, the two sets of normally closed static spring assemblies, the two sets of normally open static spring assemblies and the two sets of movable spring assemblies are symmetrical about the block convex rib 12. The beneficial effects are that: the design and the elegant appearance are convenient for maintenance personnel to quickly know the internal structure of the relay.

Preferably, the height of the lug is consistent with the height of the notch of the movable spring piece 2-1. The beneficial effects are that: the design makes the performance of relay more stable, more durable in this.

Preferably, the relay has substantially the same external dimensions as conventional relays on the market, and all innovations occur in the internal structure of the relay. The beneficial effects are that: the overall dimension of the product is not changed, and the installation and the use of a relay client are not influenced.

Compared with the prior art, the beneficial effects of the utility model are that: under the prerequisite that does not change original product appearance, use more reliable insulating plastics than the air insulation, the requirement of satisfying the customer to relay insulation resistance that is more convenient, simultaneously the utility model discloses a from top to bottom realize sealedly to inserting the structure, strengthened the insulating wall between two sets of contacts.

Drawings

FIG. 1 is a side view of the internal structure of the present invention;

fig. 2 is a sectional view of the internal structure of the present invention.

In the figure: 1. a movable reed a; 1-1, a stationary contact; 1-2, normally open static spring; 2-1, moving contact; 2-2, a movable spring terminal; 2-3, a movable reed b; 3. a normally closed static spring; 4. pushing the card; 5. a framework; 6. a bobbin; 6-1, terminal pins; 7. a yoke; 8. a pressure spring; 9. an armature; 10. a housing; 11. a grid block groove; 12. blocking convex ribs; 13. a base.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

The first embodiment is as follows: as shown in the drawing, a novel relay includes a housing 10, a contact portion, a magnetic circuit portion, a base 13, and a push card 4. The contact part comprises two groups of normally closed static reed assemblies, two groups of normally open static reed assemblies and two groups of movable reed assemblies, and the normally closed static reed assemblies, the normally open static reed assemblies and the movable reed assemblies are respectively installed in the base 13 in an inserting mode. The two groups of normally closed static reed assemblies, the two groups of normally open static reed assemblies and the two groups of movable reed assemblies are symmetrical about the grid block convex rib 12. Be provided with a check on base 13 and keep off protruding muscle 12, check keep off protruding muscle 12 and set up in the contact site middle part, are provided with a check on shell 10 and keep off recess 11, and check keep off recess 11 and set up in the middle part of contact site, and after the relay assembly, check keep off protruding muscle 12 and insert in check keep off recess 11. The magnetic circuit portion includes a bobbin 5, a bobbin 6, a yoke 7, and an armature 9. Wherein the grid rib 12 is a plastic insulating material. The push card 4 is arranged on the upper part of the magnetic circuit part, one end of the push card is provided with two arms along the moving direction of the push card, the opposite inner sides of the two arms are respectively provided with a clamping groove, and the middle part of each clamping groove is respectively provided with a lug. The height of the lug is consistent with that of the notch of the movable spring piece 2-1. The base 13 and the housing 10 are in a vertically inserted structure.

Example two: the other structures are the same as the first embodiment, and the difference is that the contact part is provided with three groups of normally closed static reed assemblies, three groups of normally open static reed assemblies and three groups of movable reed assemblies.

Claims (7)

1. A relay comprising a housing (10), a contact portion, a magnetic circuit portion, a base (13), and a push card (4), characterized in that: contact part is including two sets of normally closed static reed subassemblies, two sets of normally open static reed subassemblies and two sets of movable reed subassemblies, and each subassembly packs into base (13) respectively with the cartridge mode in, be provided with one check and keep off protruding muscle (12) on base (13), check keep off protruding muscle (12) and set up in the contact part middle part, be provided with one check on shell (10) and keep off recess (11), check keep off recess (11) and set up in contact part's middle part, check keep off protruding muscle (12) and insert and locate check and keep off recess (11).

2. A relay according to claim 1, wherein: the magnetic circuit part comprises a framework (5), a bobbin (6), a yoke (7) and an armature (9).

3. A relay according to claim 1, wherein: the grid block convex ribs (12) are made of insulating materials.

4. A relay according to claim 1, wherein: the push card (4) is arranged at the upper part of the magnetic circuit part, one end of the push card is provided with two arms along the moving direction of the push card, the opposite inner sides of the two arms are respectively provided with a clamping groove, and the middle part of each clamping groove is respectively provided with a lug.

5. A relay according to claim 1, wherein: the base (13) and the shell (10) adopt an up-down opposite insertion structure.

6. A relay according to claim 2, wherein: the two groups of normally closed static reed assemblies, the two groups of normally open static reed assemblies and the two groups of movable reed assemblies are symmetrical about the block convex rib (12).

7. A relay according to claim 4, characterized in that: the height of the bump is consistent with that of the gap of the movable spring plate (2-1).

Images