CN217061948U

CN217061948U - Sealed effectual plastic casing formula circuit breaker

Info

Publication number: CN217061948U
Application number: CN202220330776.XU
Authority: CN
Inventors: 黄品才; 韩金星; 邹德友; 吴义东
Original assignee: Nanjing Jianeng Electric Co ltd
Current assignee: Nanjing Jianeng Electric Co ltd
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-07-26
Anticipated expiration: 2032-02-18

Abstract

The utility model provides a sealed effectual plastic casing formula circuit breaker, including shell and the sealed circuit breaker body that sets up in the shell, the shell both sides all run through and are provided with the heat exchange tube, the heat exchange tube top extends to the shell outside, the shell top is connected with and is used for the radiating heat dissipation mechanism of heat exchange tube. The utility model discloses a heat in the heat exchange tube with the shell trades to the heat exchange tube on, heat in the shell can transmit to the heat exchange tube top, is the heat dissipation through heat dissipation mechanism to the heat exchange tube top and handles to can realize dispelling the heat to whole heat exchange tube, and then can realize constantly doing the heat dissipation to the shell inside and handle, this circuit breaker body sealed effect is better, and the radiating effect is better, thereby whole practicality is stronger.

Description

Sealed effectual plastic casing formula circuit breaker

Technical Field

The utility model relates to a circuit breaker field especially relates to a sealed effectual plastic casing circuit breaker.

Background

The molded case circuit breaker can automatically cut off the current after the current exceeds the trip setting. Plastic housing refers to the use of plastic insulators as the outer housing of the device to isolate the conductors from each other and from the grounded metal parts. Molded case circuit breakers typically contain a thermo-magnetic trip unit, while large molded case circuit breakers are equipped with solid state trip sensors. The molded case circuit breaker is also called a device-type circuit breaker, all parts are sealed in a plastic shell, and an auxiliary contact, an undervoltage release, a shunt release and the like are modularized. Because the structure is very compact, the molded case circuit breaker can not be overhauled basically. The manual operation is mostly adopted, and the high-capacity electric clutch can be selected.

The prior art has the following defects: inside prior art's plastic casing formula circuit breaker enters into the circuit breaker in order to prevent external dust and steam, mostly with the sealed setting of circuit breaker in the shell, but the sealed inside circuit breaker heat dispersion that sets up in the shell will become extremely poor, and the circuit breaker can not get well the heat dissipation, and life is with greatly reduced, how to design a circuit breaker, makes it compromise sealed and heat dissipation, is the problem that this scheme needs urgent solution.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art's not enough, provide a sealed effectual plastic casing circuit breaker.

The utility model discloses a following technical means realizes solving above-mentioned technical problem: the utility model provides a sealed effectual plastic casing formula circuit breaker, includes the shell and seals the circuit breaker body that sets up in the shell, the shell both sides all run through and are provided with the heat exchange tube, the heat exchange tube top extends to the shell outside, the shell top is connected with and is used for the radiating heat dissipation mechanism of heat exchange tube.

Preferably, the heat dissipation mechanism comprises a fan fixedly arranged at the top of the shell, an annular cavity connected to two sides of the top of the shell, an air guide pipe connected between the fan and the annular cavity, and air outlets formed in two sides of the inner peripheral surface of the annular cavity.

Preferably, the annular cavities are respectively sleeved outside the heat exchange tubes at the corresponding positions.

Preferably, the bottom of the heat exchange tube is connected with a driving mechanism, and the driving mechanism comprises a driving part connected to the bottom of the shell and a transmission mechanism connected between an output shaft of the driving part and the heat exchange tube.

Preferably, the transmission mechanism comprises a driving chain wheel connected to the top of the output shaft of the driving part and a driven chain wheel connected to the bottom of the heat exchange tube, and a chain is connected between the driving chain wheel and the driven chain wheel.

The utility model has the advantages that:

the utility model discloses a heat in the heat exchange tube with the shell trades to the heat exchange tube on, heat in the shell can transmit to the heat exchange tube top, is the heat dissipation through heat dissipation mechanism to the heat exchange tube top and handles to can realize dispelling the heat to whole heat exchange tube, and then can realize constantly doing the heat dissipation to the shell inside and handle, this circuit breaker body sealed effect is better, and the radiating effect is better, thereby whole practicality is stronger.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;

fig. 3 is a top view of the transmission mechanism and the heat exchange tube of the present invention.

In the figure: 1. a housing; 2. a circuit breaker body; 3. a heat exchange pipe; 4. a drive mechanism; 41. a drive member; 42. a transmission mechanism; 421. a drive sprocket; 422. a driven sprocket; 423. a chain; 5. a heat dissipation mechanism; 51. a fan; 52. an annular cavity; 53. an air guide pipe; 54. and (7) an air outlet.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Examples

Referring to fig. 1 to 3, the plastic case circuit breaker with good sealing effect of the present embodiment includes a case 1 and a circuit breaker body 2 hermetically disposed in the case 1, wherein heat exchange tubes 3 are respectively disposed through two sides of the case 1, the heat exchange tubes 3 are respectively and rotationally connected to the case 1 through a sealing rotating member, so as to further seal the circuit breaker body 2, the top of the heat exchange tubes 3 extends to the outside of the case 1, and the top of the case 1 is connected to a heat dissipation mechanism 5 for dissipating heat of the heat exchange tubes 3;

the heat that produces when circuit breaker body 2 moves gathers in shell 1, through heat exchange tube 3 with the heat in the shell 1 change to heat exchange tube 3 on, the heat in the shell 1 can transmit to the 3 tops of heat exchange tube, do the thermal treatment through heat dissipation mechanism 5 to the 3 tops of heat exchange tube, thereby can realize dispelling the heat to whole heat exchange tube 3, and then can realize constantly doing the thermal treatment to shell 1 inside, this circuit breaker body 2 seals the effect better, and the radiating effect is better, thereby whole practicality is stronger.

Referring to fig. 1 and 2, further, the heat dissipation mechanism 5 includes a fan 51 fixedly disposed at the top of the housing 1, an annular cavity 52 connected to two sides of the top of the housing 1 and respectively sleeved outside the heat exchange tube 3, an air guiding tube 53 connected between the fan 51 and the annular cavity 52, and air outlets 54 disposed at two sides of the inner peripheral surface of the annular cavity 52; as shown in fig. 1, when the fan 51 operates, external wind enters and exits the annular cavity 52 through the wind guide pipe 53, and airflow entering the annular cavity 52 is ejected through the wind outlet 54 as high-speed airflow to directly act on the heat exchange tube 3, so as to realize heat dissipation treatment of the heat exchange tube 3; the heat dissipation mechanism 5 is not particularly limited, and can perform heat dissipation treatment on the heat exchange pipe 3.

Referring to fig. 1 to 3, further, in order to better dissipate heat of the heat exchange tube 3, a driving mechanism 4 is connected to the bottom of the heat exchange tube 3, and the driving mechanism 4 includes a driving member 41 connected to the bottom of the housing 1, and a transmission mechanism 42 connected between an output shaft of the driving member 41 and the heat exchange tube 3; the driving element 41 drives the heat exchange tube 3 to rotate through the transmission mechanism 42; when the heat exchange tube 3 rotates, the heat exchange tube 3 is subjected to omnibearing heat dissipation treatment by the heat dissipation mechanism 5, so that the heat dissipation effect of the heat exchange tube 3 is better, and further the heat dissipation effect inside the shell 1 is better.

The transmission mechanism 42 comprises a driving chain wheel 421 connected to the top of the output shaft of the driving part 41 and a driven chain wheel 422 connected to the bottom of the heat exchange tube 3, and a chain 423 is connected between the driving chain wheel 421 and the driven chain wheel 422; when the driving member 41 operates, the driving sprocket 421 is driven to rotate, and the driving sprocket 421 drives the driven sprocket 422 and the heat exchange tube 3 at the corresponding position to rotate through the chain 423; the transmission mechanism 42 is not limited here, and all transmission mechanisms 42 capable of driving the heat exchange tubes 3 to rotate by the driving part 41 can be realized, and the arrangement of the transmission mechanism 42 can realize that one driving part 41 drives two heat exchange tubes 3 to rotate simultaneously, so that the arrangement of the driving part 41 is reduced, the use cost is reduced, and electric energy is saved.

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a sealed effectual plastic casing formula circuit breaker, includes shell (1) and sealed circuit breaker body (2) of setting in shell (1), its characterized in that: the heat exchanger is characterized in that heat exchange tubes (3) are arranged on two sides of the shell (1) in a penetrating mode, the top of each heat exchange tube (3) extends to the outer side of the shell (1), and a heat dissipation mechanism (5) used for dissipating heat of the heat exchange tubes (3) is connected to the top of the shell (1).

2. The plastic case type circuit breaker with good sealing effect as claimed in claim 1, wherein: the heat dissipation mechanism (5) comprises a fan (51) fixedly arranged at the top of the shell (1), an annular cavity (52) connected to two sides of the top of the shell (1), an air guide pipe (53) connected between the fan (51) and the annular cavity (52), and air outlets (54) arranged on two sides of the inner peripheral surface of the annular cavity (52).

3. The plastic cased circuit breaker with good sealing effect according to claim 2, wherein: the annular cavities (52) are respectively sleeved outside the heat exchange tubes (3) at the corresponding positions.

4. The plastic cased circuit breaker with good sealing effect as claimed in claim 1, wherein: the heat exchange tube (3) bottom is connected with actuating mechanism (4), actuating mechanism (4) are including connecting driving piece (41) in shell (1) bottom and connecting drive mechanism (42) between driving piece (41) output shaft and heat exchange tube (3).

5. The plastic cased circuit breaker with good sealing effect as claimed in claim 4, wherein: the transmission mechanism (42) comprises a driving chain wheel (421) connected to the top of an output shaft of the driving part (41) and a driven chain wheel (422) connected to the bottom of the heat exchange tube (3), and a chain (423) is connected between the driving chain wheel (421) and the driven chain wheel (422).