CN218333618U - Heavy load electromagnetic relay - Google Patents
Heavy load electromagnetic relay Download PDFInfo
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- CN218333618U CN218333618U CN202123027824.2U CN202123027824U CN218333618U CN 218333618 U CN218333618 U CN 218333618U CN 202123027824 U CN202123027824 U CN 202123027824U CN 218333618 U CN218333618 U CN 218333618U
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Abstract
The utility model relates to a heavy load electromagnetic relay, including base, shell, electromagnetic component, the contact system of setting on the base, electromagnetic component includes yoke, coil skeleton, coil, iron core, armature, shell fragment, the contact system including set up movable contact spring on the base, set up on the base and with two fixed contacts of movable contact spring matched with, armature and movable contact spring between be provided with and push away the frame, movable contact spring serve and be provided with two fixed contact matched with movable contact, one of fixed contact serve and be provided with the stationary contact with movable contact matched with, movable contact spring on correspond the both sides department of movable contact and be provided with an airflow hole respectively, stationary contact on correspond the both sides department of stationary contact and be provided with a heat dissipation airflow hole respectively. The utility model has the advantages of simple structure, stable and reliable performance, low temperature rise and heavy load.
Description
Technical Field
The utility model particularly relates to an electromagnetic relay, concretely relates to heavy load electromagnetic relay.
Background
An electromagnetic relay is an electronic control device having a control system (also called an input loop) and a controlled system (also called an output loop), and is generally applied to an automatic control circuit, and actually is an automatic switch for controlling a larger current and a higher voltage by using a smaller current and a lower voltage. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like. With the development of low-voltage electrical appliances, the application of the electromagnetic relay is more and more extensive, and the requirement on the electromagnetic relay is higher and higher. The contact system of the existing electromagnetic relay is unreasonable in structural design and small in contact load capacity, and the electromagnetic relay also has the defects of complex structure, high temperature rise and low sensitivity.
Disclosure of Invention
An object of the utility model is to overcome prior art's defect, provide a simple structure, stable performance is reliable, the heavy load electromagnetic relay that the temperature rise is low.
For realizing above-mentioned mesh, the utility model discloses a heavy load electromagnetic relay, including base, shell, electromagnetic component, the contact system of setting on the base, electromagnetic component including setting up yoke on the base, setting up coil skeleton on the yoke, set up coil on coil skeleton, set up iron core in coil skeleton, rotate and set up on the yoke and with iron core matched with armature, set up the shell fragment between armature and yoke, the contact system including set up movable contact spring on the base, set up on the base and with two fixed contacts of movable contact spring matched with, armature and movable contact spring between be provided with and push away the frame, movable contact spring serve and be provided with two fixed contact matched with movable contact, one of fixed contact serve and be provided with the stationary contact with movable contact matched with, movable contact spring on correspond the both sides department of movable contact and be provided with an air current hole respectively, stationary contact on correspond the both sides department of stationary contact and be provided with a radiating hole respectively.
The beneficial effect of above-mentioned structure is: the movable spring is provided with the airflow hole, the stationary contact is provided with the heat dissipation airflow hole, the airflow hole and the heat dissipation airflow hole can play a role in heat dissipation, the temperature rise is lower, convection is formed between the airflow hole and the heat dissipation airflow hole, and the load capacity of the contact is large, so that the electromagnetic relay has the advantages of simple structure, stable and reliable performance, low temperature rise and large load.
Particularly, a hollow hole is formed in the movable spring. The hollow holes are formed in the movable spring pieces, so that the movable spring pieces can be guaranteed to be good in elasticity, and the sensitivity of the electromagnetic relay can be improved.
In particular, a partition is provided in the housing, which partitions between the contact system and the electromagnetic assembly. The partition plate is separated between the contact system and the electromagnetic assembly, so that the creepage distance between the contact system and the electromagnetic assembly can be increased, and the working reliability of the electromagnetic relay is improved.
Drawings
Fig. 1 is a sectional view of the embodiment of the present invention.
Fig. 2 is an internal structure diagram of the embodiment of the present invention.
Detailed Description
As shown in fig. 1 and 2, an embodiment of the present invention is a heavy-load electromagnetic relay, including a base 10, a housing 11 disposed on the base 10, an electromagnetic assembly 20, and a contact system 30, where the electromagnetic assembly 20 includes a yoke 21 disposed on the base 10, a bobbin 22 disposed on the yoke 21, a coil 23 disposed on the bobbin 22, an iron core 24 disposed in the bobbin 22, an armature 25 rotatably disposed on the yoke 21 and matched with the iron core 24, and an elastic sheet 26 disposed between the armature 25 and the yoke 21, the contact system 30 includes a movable spring 31 disposed on the base 10, two stationary contacts 32 disposed on the base 10 and matched with the movable spring 31, a pushing frame 27 is disposed between the armature 25 and the movable spring 31, one end of the movable spring 31 is provided with a movable contact 311 matched with the two stationary contacts 32, one end of the stationary contact 32 is provided with a stationary contact 321 matched with the movable contact 311, two sides of the movable contact 31 corresponding to the movable contact 311 are respectively provided with a heat dissipation hole 312, and two sides of the stationary contact 321 are respectively provided with a heat dissipation hole 322 corresponding to the airflow hole 322. The movable spring plate 31 is provided with a hollow hole 313. The hollow holes are formed in the movable spring pieces, so that the movable spring pieces can be guaranteed to be good in elasticity, and the sensitivity of the electromagnetic relay can be improved. A partition 111 is provided in the housing 11 to separate the contact system 30 from the magnet assembly 20. The partition plate is separated between the contact system and the electromagnetic assembly, so that the creepage distance between the contact system and the electromagnetic assembly can be increased, and the working reliability of the electromagnetic relay is improved.
The movable spring is provided with the airflow hole, the stationary contact is provided with the heat dissipation airflow hole, the airflow hole and the heat dissipation airflow hole can play a role in heat dissipation, the temperature rise is lower, convection is formed between the airflow hole and the heat dissipation airflow hole, and the load capacity of the contact is large, so that the electromagnetic relay has the advantages of simple structure, stable and reliable performance, low temperature rise and large load.
Claims (3)
1. The utility model provides a heavy load electromagnetic relay, includes the base, sets up shell, electromagnetic component, contact system on the base, electromagnetic component including setting up yoke on the base, setting up coil skeleton on the yoke, setting up the coil on coil skeleton, setting up the iron core in coil skeleton, rotate set up on the yoke and with iron core matched with armature, set up the shell fragment between armature and yoke, contact system including setting up movable contact spring on the base, setting up on the base and with two static contacts of movable contact spring matched with, armature and movable contact spring between be provided with and push away frame, its characterized in that: one end of the movable spring is provided with a movable contact matched with the two fixed contacts, one end of each fixed contact is provided with a fixed contact matched with the movable contact, two sides of the movable spring corresponding to the movable contact are respectively provided with an airflow hole, and two sides of the fixed contact corresponding to the fixed contact are respectively provided with a heat dissipation airflow hole.
2. A heavy load electromagnetic relay according to claim 1, characterized in that: and hollow holes are formed in the movable spring pieces.
3. A heavy load electromagnetic relay according to claim 1 or 2, characterized in that: and a partition plate for separating the contact system and the electromagnetic assembly is arranged in the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123027824.2U CN218333618U (en) | 2021-12-04 | 2021-12-04 | Heavy load electromagnetic relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123027824.2U CN218333618U (en) | 2021-12-04 | 2021-12-04 | Heavy load electromagnetic relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218333618U true CN218333618U (en) | 2023-01-17 |
Family
ID=84830374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123027824.2U Active CN218333618U (en) | 2021-12-04 | 2021-12-04 | Heavy load electromagnetic relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218333618U (en) |
-
2021
- 2021-12-04 CN CN202123027824.2U patent/CN218333618U/en active Active
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