CN217280495U - Heat radiation structure of intelligent circuit breaker - Google Patents
Heat radiation structure of intelligent circuit breaker Download PDFInfo
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- CN217280495U CN217280495U CN202123452568.1U CN202123452568U CN217280495U CN 217280495 U CN217280495 U CN 217280495U CN 202123452568 U CN202123452568 U CN 202123452568U CN 217280495 U CN217280495 U CN 217280495U
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- base
- circuit breaker
- contact plate
- cooling groove
- wiring board
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Abstract
The utility model relates to a heat radiation structure of intelligent circuit breaker, including base and well bedplate, including the stationary contact plate in the accommodation space that base and well bedplate formed, the stationary contact plate is drawn forth binding post by the wiring board including being wiring board and the contact plate that the echelonment distributes, sets up more than one lug on the base, and the lug is laminated mutually with the plane of contact plate, and the lug encircles the cooling tank all around. On the one hand, the cooling groove can increase the cache of the cache hot air, the hot air is discharged to the outside of the shell through the arc-extinguishing grid and the vent window by the cooling groove, on the other hand, the atmosphere low-temperature cold air enters the cooling groove, the air exchange inside and outside the shell is accelerated by the arrangement of the cooling groove, and the inside cooling of the shell can be realized quickly.
Description
Technical Field
The utility model relates to a heat radiation structure of intelligent circuit breaker.
Background
In the structural design of the circuit breaker, the volume miniaturization and the high-current breaking are a pair of spears. In order to achieve higher on-off current levels in smaller volumes, it is desirable to improve the contact performance of the contacts as much as possible. In the existing circuit breaker, a static contact is used as a wiring terminal and is flatly attached to a shell, and the temperature rise of the static contact is large due to the large flow of the static contact.
Disclosure of Invention
In view of this, the utility model aims at providing a simple structure digs out the cooling groove on the plane of casing and static contact laminating for the heat radiation structure of the intelligent circuit breaker of system too much heat by releasing in the louver.
In order to realize above mesh, the utility model discloses a such heat radiation structure of intelligent circuit breaker, including base and well bedplate, the base with the accommodation space that well bedplate formed in including quiet touch panel, quiet touch panel including being echelonment distribution's wiring board and contact plate, by the wiring board draw forth binding post, the base on set up more than one lug, the plane of lug and contact plate laminate mutually, the lug encircle the cooling tank all around.
Particularly, arc-extinguishing grids are arranged on two sides of the contact opening and closing movement stroke, a ventilation window is arranged in a manner of extending from the base surface of the wiring terminal to the joint surface of the middle seat plate, and the arc-extinguishing grids are arranged opposite to the ventilation window.
Compared with the prior art, the invention has the beneficial technical effects that: on the one hand, the cooling groove can increase the buffer of the buffer hot air, the hot air is discharged to the outside of the shell through the arc extinguishing grid and the vent window by the cooling groove, on the other hand, the atmosphere low-temperature air enters the cooling groove, the setting of the cooling groove accelerates the air flow exchange inside and outside the shell, and the inside cooling of the shell can be realized quickly.
In particular, a baffle plate is arranged on the base at a position adjacent to the movable contact tool holder. The baffle provides the obstacle for the circulation of hot-air, prevents that too much hot-air from getting into electric unit holding intracavity at a stroke, influences electric unit's normal work.
Particularly, the lower end of the baffle is provided with a first vent hole and a second vent hole, the rear end of the base, which is positioned on the wiring terminal, is hollowed to form a settling tank, the back of the base is provided with an airflow channel, and the settling tank is communicated with the airflow channel. Through the arrangement of the structure, the hot air flow in the shell is increased and discharged to the outside, the normal work of the electrical unit is further ensured, the electrical unit is prevented from being influenced by the hot air flow, the measurement precision is reduced, the reliable action of protection is influenced, and the aging of the electrical unit is avoided.
Drawings
FIG. 1 is a cross-sectional view of an embodiment of the invention;
fig. 2 is a top view of an embodiment of the invention;
fig. 3 is a front view of a base in an embodiment of the invention;
fig. 4 is a back view of the base in the embodiment of the present invention.
In the figure: 1. a base; 11. a cooling tank; 12. a baffle plate; 13. a first vent hole; 14. a second vent hole; 15. a settling tank; 16. an air flow channel; 17. a bump; 2. a middle seat plate; 31. a wiring board; 32. a contact plate; 4. a ventilation window; 5. a wiring terminal; 6. and an arc extinguishing grid.
Detailed Description
As shown in fig. 1 to 4, the heat dissipation structure of the intelligent circuit breaker comprises a base 1 and a middle base plate 2, wherein a containing space formed by the base 1 and the middle base plate 2 comprises a static contact plate, the static contact plate comprises a wiring board 31 and a contact plate 32 which are distributed in a step shape, a wiring terminal 5 is led out from the wiring board 31, more than one convex block 17 is arranged on the base 1, the convex block 17 is attached to the plane of the contact plate 32, and the periphery of the convex block 17 surrounds a cooling groove 15.
Arc-extinguishing grids 6 are arranged on two sides of the contact opening and closing movement stroke, ventilation windows 4 are arranged from the base surface of the wiring terminal 5 to the joint surface of the middle seat plate 2 in an extending mode, and the arc-extinguishing grids 6 are arranged opposite to the ventilation windows 4.
A baffle plate 12 is arranged on the base 1 at a position adjacent to the movable contact tool holder.
The lower end of the baffle 12 is provided with a first vent hole 13 and a second vent hole 14, the rear end of the base 1, which is positioned on the wiring terminal 5, is hollowed to form a settling tank 15, the back of the base 1 is provided with an airflow channel 16, and the settling tank 15 is communicated with the airflow channel 16.
Claims (4)
1. The utility model provides a heat radiation structure of intelligent circuit breaker, includes base and well bedplate, the base with the accommodation space that well bedplate formed in including the stationary contact board, its characterized in that: the static contact plate comprises a wiring board and a contact plate which are distributed in a step shape, the wiring board leads out a wiring terminal, more than one convex block is arranged on the base, the convex block is attached to the plane of the contact plate, and the periphery of the convex block surrounds the cooling groove.
2. The heat dissipation structure of the smart circuit breaker according to claim 1, wherein: arc-extinguishing grids are arranged on two sides of the contact opening and closing movement stroke, a ventilation window is arranged from the base surface of the wiring terminal to the joint surface of the middle seat plate in an extending mode, and the arc-extinguishing grids and the ventilation window are arranged oppositely.
3. The heat dissipation structure of the smart circuit breaker according to claim 1 or 2, wherein: a baffle is arranged on the base at a position adjacent to the movable contact knife holder.
4. The heat dissipation structure of the smart circuit breaker according to claim 3, wherein: the lower end of the baffle is provided with a first vent hole and a second vent hole, the rear end of the base, which is positioned on the wiring terminal, is hollowed to form a settling tank, the back of the base is provided with an airflow channel, and the settling tank is communicated with the airflow channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123452568.1U CN217280495U (en) | 2021-12-31 | 2021-12-31 | Heat radiation structure of intelligent circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123452568.1U CN217280495U (en) | 2021-12-31 | 2021-12-31 | Heat radiation structure of intelligent circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217280495U true CN217280495U (en) | 2022-08-23 |
Family
ID=82892030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123452568.1U Active CN217280495U (en) | 2021-12-31 | 2021-12-31 | Heat radiation structure of intelligent circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217280495U (en) |
-
2021
- 2021-12-31 CN CN202123452568.1U patent/CN217280495U/en active Active
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