CN216120133U - Universal circuit breaker chassis with good heat dissipation performance - Google Patents

Abstract

The utility model relates to a universal circuit breaker chassis with good heat dissipation performance, which comprises a chassis body, a plurality of bridge-shaped contacts, a plurality of busbars, push rods and springs, wherein a safety baffle assembly is movably arranged on one side of the chassis body and comprises a first safety baffle and a second safety baffle, a plurality of first bus holes are respectively arranged on the first safety baffle corresponding to the bridge-shaped contacts, a plurality of heat dissipation holes are arranged on the chassis body, a plurality of first heat dissipation holes are respectively arranged on the first safety baffle corresponding to the heat dissipation holes, a plurality of second heat dissipation holes staggered with the first heat dissipation holes are arranged on the second safety baffle, second bus holes staggered with the first bus holes are arranged on the second safety baffle, and guide holes sleeved on the push rods are respectively arranged on the first safety baffle and the second safety baffle Stable and reliable performance, high assembly efficiency and good heat dissipation performance.

Description

Universal circuit breaker chassis with good heat dissipation performance

Technical Field

The utility model relates to a universal circuit breaker, in particular to a universal circuit breaker chassis with good heat dissipation performance.

Background

The conventional circuit breaker is also called a frame type circuit breaker, and the frame type circuit breaker is a mechanical switch electrical appliance which can connect, bear and break current under normal circuit conditions and can also connect, bear and break current for a certain time under specified abnormal circuit conditions. Conventional circuit breakers are used to distribute electrical energy and to protect lines and power equipment from overloads, undervoltages, short circuits, etc. The temperature rise of the universal circuit breaker is an important factor influencing the reliability of the circuit breaker. Especially, the drawer type circuit breaker, because there is the reason of contact resistance after female arranging of circuit breaker body and the interlock of drawer seat upper bridge type contact, can produce a large amount of heats here, lead to the circuit breaker temperature rise on the high side. However, the chassis of the conventional universal circuit breaker is unreasonable in structural design and poor in heat dissipation performance, so that the conventional universal circuit breaker is high in temperature rise, and the chassis of the conventional universal circuit breaker has the defects of complex structure, inconvenient assembly and unreliable performance.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides the universal circuit breaker chassis with simple structure, stable and reliable performance, high assembly efficiency and good heat dissipation performance.

In order to achieve the purpose, the utility model adopts a universal circuit breaker chassis with good heat dissipation performance, which comprises a chassis body, a plurality of bridge-type contacts arranged in the chassis body, a plurality of bus bars arranged on the chassis body and connected with the bridge-type contacts, a push rod movably arranged on the chassis body, and a spring arranged between the push rod and the chassis body, wherein one side of the chassis body is movably provided with a safety baffle assembly, the safety baffle assembly comprises a first safety baffle movably arranged on one side of the chassis body and a second safety baffle movably arranged on the chassis body corresponding to one side of the first safety baffle, a plurality of first bus holes are respectively arranged on the first safety baffle corresponding to the plurality of bridge-type contacts, a plurality of heat dissipation holes are arranged on the chassis body, and a plurality of first heat dissipation holes are respectively arranged on the first safety baffle corresponding to the plurality of heat dissipation holes, the chassis comprises a chassis body, a first safety baffle plate, a second safety baffle plate, a plurality of first heat dissipation holes and a plurality of second heat dissipation holes, wherein the first heat dissipation holes are formed in the first safety baffle plate, the second safety baffle plate is provided with the plurality of second heat dissipation holes which are mutually staggered with the plurality of first heat dissipation holes, the second safety baffle plate is provided with second bus holes which are mutually staggered with the plurality of first bus holes, the first safety baffle plate and the second safety baffle plate are respectively provided with guide holes which are sleeved on a push rod, and the first safety baffle plate and the second safety baffle plate move along with the push rod and can reciprocate on the chassis body.

The beneficial effect of above-mentioned structure is: be provided with the louvre on the chassis body, be provided with first louvre on the first safety shield, be provided with the second louvre on the second safety shield to be favorable to the heat dissipation of this universal circuit breaker chassis. When the universal circuit breaker is in a disconnection position (non-working position), the push rod is not pressed down, and the first bus hole and the first heat dissipation hole on the first safety baffle are mutually staggered with the second bus hole and the second heat dissipation hole on the second safety baffle, so that the first safety baffle and the second safety baffle can be shielded on the bridge-type contact and the heat dissipation holes, and the safety of the universal circuit breaker can be ensured; when the universal circuit breaker is in the switch-on position, the push rod is pressed down, the push rod can drive the first safety baffle and the second safety baffle to do relative motion, so that the first bus hole and the first heat dissipation hole in the first safety baffle are overlapped with the second bus hole and the second heat dissipation hole in the second safety baffle, the heat dissipation holes in the chassis body are communicated with the first heat dissipation hole and the second heat dissipation hole, air convection is formed, and further internal heat of the universal circuit breaker is effectively dissipated. Thereby this structural design's conventional circuit breaker chassis is safe and reliable more, and when the circuit breaker was located the isolated position, first safety shield, second safety shield can effectively keep apart the electrified body, and when hookup location (operating position), form a plurality of heat dissipation channels and guarantee the good heat dispersion of this conventional circuit breaker. Therefore, the universal circuit breaker chassis has the advantages of simple structure, stable and reliable performance, high assembly efficiency and good heat dissipation performance.

Particularly, a plurality of guide bolts are arranged on the chassis body corresponding to the first safety baffle and the second safety baffle, waist-shaped holes sleeved on the guide bolts are respectively arranged on the first safety baffle and the second safety baffle, and the first safety baffle, the second safety baffle and the guide bolts are in sliding connection and matching. First safety shield, second safety shield block are on the guide bolt of chassis body to the chassis body of being convenient for and first safety shield, second safety shield's assembly, it is more convenient to assemble, and can guarantee that first safety shield, second safety shield can reliably slide at the chassis body.

Particularly, the two sides of the push rod are respectively provided with a guide inclined block matched with the guide hole, and the guide inclined blocks move along with the push rod and can push the first safety baffle and the second safety baffle to move. Be provided with the direction sloping block on the push rod, the action of first safety shield, second safety shield can reliably be driven to the direction sloping block to be favorable to improving the job stabilization nature of this universal circuit breaker chassis.

Drawings

FIG. 1 is a perspective view of an embodiment of the present invention.

Fig. 2 is an exploded view of an embodiment of the present invention.

Detailed Description

As shown in fig. 1 and 2, an embodiment of the present invention is a chassis for a universal circuit breaker with good heat dissipation performance, including a chassis body 10, a plurality of bridge contacts 11 disposed in the chassis body 10, a plurality of busbars 12 disposed on the chassis body 10 and connected to the bridge contacts 11, a push rod 13 movably disposed on the chassis body 10, and a spring 14 disposed between the push rod 13 and the chassis body 10, wherein a safety barrier assembly 20 is movably disposed on one side of the chassis body 10, the safety barrier assembly 20 includes a first safety barrier 21 movably disposed on one side of the chassis body 10, and a second safety barrier 22 movably disposed on the chassis body 10 corresponding to one side of the first safety barrier 21, a plurality of first busbar holes 211 are respectively disposed on the first safety barrier 21 corresponding to the plurality of bridge contacts 11, a plurality of heat dissipation holes 101 are disposed on the chassis body 10, first safety shield 21 on correspond a plurality of louvre 101 punishment and be provided with a plurality of first louvre 212 respectively, second safety shield 22 on be provided with a plurality of second louvre 221 with a plurality of first louvre 212 stagger each other, second safety shield 22 on be provided with the second bus-bar hole 222 with a plurality of first bus-bar holes 211 stagger each other, first safety shield 21, second safety shield 22 on be provided with the guiding hole 200 of suit on push rod 13 respectively, first safety shield 21, second safety shield 22 along with the action of push rod 13 and can reciprocate on chassis body 10.

As shown in fig. 2, a plurality of guide bolts 15 are arranged on the chassis body 10 corresponding to the first safety barrier 21 and the second safety barrier 22, waist-shaped holes 201 sleeved on the guide bolts 15 are respectively arranged on the first safety barrier 21 and the second safety barrier 22, and the first safety barrier 21 and the second safety barrier 22 are in sliding connection and matching with the guide bolts 15. First safety shield, second safety shield block are on the guide bolt of chassis body to the chassis body of being convenient for and first safety shield, second safety shield's assembly, it is more convenient to assemble, and can guarantee that first safety shield, second safety shield can reliably slide at the chassis body. The two sides of the push rod 13 are respectively provided with a guide inclined block 131 matched with the guide hole 200, and the guide inclined block 131 moves along with the push rod 13 and can push the first safety barrier 21 and the second safety barrier 22 to move. Be provided with the direction sloping block on the push rod, the action of first safety shield, second safety shield can reliably be driven to the direction sloping block to be favorable to improving the job stabilization nature of this universal circuit breaker chassis.

Be provided with the louvre on the chassis body, be provided with first louvre on the first safety shield, be provided with the second louvre on the second safety shield to be favorable to the heat dissipation of this universal circuit breaker chassis. When the universal circuit breaker is in a disconnection position (non-working position), the push rod is not pressed down, and the first bus hole and the first heat dissipation hole on the first safety baffle are mutually staggered with the second bus hole and the second heat dissipation hole on the second safety baffle, so that the first safety baffle and the second safety baffle can be shielded on the bridge-type contact and the heat dissipation holes, and the safety of the universal circuit breaker can be ensured; when the universal circuit breaker is in the switch-on position, the push rod is pressed down, the push rod can drive the first safety baffle and the second safety baffle to do relative motion, so that the first bus hole and the first heat dissipation hole in the first safety baffle are overlapped with the second bus hole and the second heat dissipation hole in the second safety baffle, the heat dissipation holes in the chassis body are communicated with the first heat dissipation hole and the second heat dissipation hole, air convection is formed, and further internal heat of the universal circuit breaker is effectively dissipated. Thereby this structural design's conventional circuit breaker chassis is safe and reliable more, and when the circuit breaker was located the isolated position, first safety shield, second safety shield can effectively keep apart the electrified body, and when hookup location (operating position), form a plurality of heat dissipation channels and guarantee the good heat dispersion of this conventional circuit breaker. Therefore, the universal circuit breaker chassis has the advantages of simple structure, stable and reliable performance, high assembly efficiency and good heat dissipation performance.

Claims (3)

1. The utility model provides a conventional circuit breaker chassis that heat dispersion is good, includes chassis body, a plurality of setting at this internal bridge type contact of chassis, a plurality of setting on the chassis body and the female arranging that is connected with bridge type contact, the activity sets up the push rod on the chassis body, sets up the spring between push rod and chassis body, its characterized in that: the safety device comprises an underframe body, a safety baffle assembly and a plurality of second safety baffles, wherein the safety baffle assembly is movably arranged on one side of the underframe body, the safety baffle assembly comprises a first safety baffle movably arranged on one side of the underframe body and a second safety baffle movably arranged on the underframe body corresponding to one side of the first safety baffle, a plurality of first bus-bar holes are respectively arranged on the first safety baffle corresponding to a plurality of bridge-type contacts, a plurality of heat dissipation holes are arranged on the underframe body, a plurality of first heat dissipation holes are respectively arranged on the first safety baffle corresponding to a plurality of heat dissipation holes, a plurality of second heat dissipation holes mutually staggered with the plurality of first heat dissipation holes are arranged on the second safety baffle, second bus-bar holes mutually staggered with the plurality of first bus-bar holes are arranged on the second safety baffle, and guide holes sleeved on a push rod are respectively arranged on the first safety baffle and the second safety baffle, the first safety baffle and the second safety baffle move along with the push rod and can reciprocate on the underframe body.

2. The conventional circuit breaker base frame with good heat dissipation performance of claim 1, wherein: the chassis body on correspond first safety shield, second safety shield department be provided with a plurality of guide bolts, first safety shield, second safety shield on be provided with the waist type hole of suit on the guide bolt respectively, and constitute first safety shield, second safety shield and guide bolt sliding connection cooperation.

3. The conventional circuit breaker base frame with good heat dissipation performance according to claim 1 or 2, wherein: the two sides of the push rod are respectively provided with a guide inclined block matched with the guide hole, and the guide inclined blocks move along with the push rod and can push the first safety baffle and the second safety baffle to move.

Images