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CN-224232551-U - Electric primary circuit breaker heat abstractor

CN224232551UCN 224232551 UCN224232551 UCN 224232551UCN-224232551-U

Abstract

The utility model discloses a heat dissipation device of an electric primary circuit breaker, which comprises an installation box, wherein a circuit breaker body is fixedly installed in an inner cavity of the installation box, a protection door is movably connected to the left end of the front surface of the installation box through a hinge, and a fixed cover is fixedly connected to the left side of the protection door. According to the utility model, through the arrangement of the mounting box and the protective door, the breaker body can be placed and protected, and the outside air can be driven to be quickly blown to the surface of the breaker body under the action of the heat dissipation fan, so that the effect of heat dissipation of the breaker body is achieved, meanwhile, through the arrangement of the dust filter screen, dust in the air can be effectively filtered in the flowing path of the air conveyed by the heat dissipation fan, and the influence on the subsequent heat dissipation caused by the fact that a large amount of dust is piled on the surface of the breaker body in the long-term operation process is effectively avoided, so that the breaker body can stably operate.

Inventors

  • NIE LEI

Assignees

  • 沈阳奉润通用电子电器有限公司

Dates

Publication Date
20260512
Application Date
20250408

Claims (7)

  1. 1. The utility model provides an electric primary circuit breaker heat abstractor, includes mounting box (1), its characterized in that, the inner chamber fixed mounting of mounting box (1) has circuit breaker body (2), the left end on mounting box (1) front surface has guard gate (3) through hinge swing joint, the left side fixedly connected with fixed cover (8) of guard gate (3), pinhole (24) have all been seted up to the both sides of fixed cover (8) inner chamber, sliding connection has wind-guiding frame (10) between the inner chamber of fixed cover (8) and the left side of guard gate (3), sliding connection has round pin pole (21) between the surface of pinhole (24) and the surface of wind-guiding frame (10), sliding connection has installation framed (13) between the left end of wind-guiding frame (10) inner chamber and the left end at fixed cover (8) inner chamber top, the middle-end fixed mounting of installation framed (13) has dust filter screen (12), the right-hand member fixedly connected with braced frame (16) of wind-guiding frame (10) inner chamber, both ends (17) of braced frame (16) have both ends to install, the pivot (18) are connected with in the front through pivot (18) in the fixed connection of pivot (18), a connecting plate (22) is movably connected between the surface of the rotating rod (20) and the surface of the pin rod (21) through a bearing.
  2. 2. The heat dissipating device for the electric primary breaker according to claim 1, wherein the middle end of the fixed cover (8) is provided with an air inlet hole (9), the surface of the air inlet hole (9) is fixedly connected with a second metal protection net (11), the middle end of the protection door (3) is provided with an air guide hole (4), and the surface of the air guide hole (4) is fixedly connected with a first metal protection net (5).
  3. 3. The heat dissipating double-fuselage of a kind of electric once breaker of claim 1, wherein the both sides of the said installation box (1) have exhaust holes (7), both sides of the back of the said installation box (1) are fixedly connected with the mounting plate (6), the surface of the said mounting plate (6) has mounting holes.
  4. 4. The heat dissipating double-fuselage of a kind of electric once breaker of claim 1, wherein the left end of the bottom of said air guiding frame (10) inner chamber opens the locating hole (15), the middle end of the bottom of the said mounting frame plate (13) fixedly connects with the locating block (14), the surface of the said locating block (14) is slidably connected to the surface of the locating hole (15).
  5. 5. The heat dissipating double-fuselage of a kind of electric once breaker of claim 1, wherein both ends of the inner chamber of the said wind-guiding frame (10) are fixedly connected with the guide slide bar (23), the surface of the said pin bar (21) is slidably connected to the surface of the guide slide bar (23).
  6. 6. The heat dissipating double-fuselage of a kind of electric once breaker of claim 1, wherein the positive surface of the said spindle (18) fixedly connects with the rotary table, fixedly connect with the torsional spring (19) between inner chamber of the wind-guiding frame (10) and the surface of the said spindle (18).
  7. 7. The heat dissipating device of an electric primary breaker according to claim 1, wherein said pin (21) is T-shaped and said rotating rod (20) is U-shaped.

Description

Electric primary circuit breaker heat abstractor Technical Field The utility model relates to the technical field of circuit breakers, in particular to a heat dissipation device of an electric primary circuit breaker. Background The circuit breaker is core equipment directly participating in electric energy distribution and protection in an electric power system, is mainly used for closing, bearing and switching on and off normal loop current, and rapidly cuts off fault current under abnormal conditions such as short circuit, overload or undervoltage, so that the safety of the system is ensured, when the circuit breaker is used for switching on and off current, internal elements (such as a contact, a coil and the like) can generate heat due to resistance and electromagnetic effect, the heat accumulation can often cause the equipment to be overheated, and in order to ensure that the circuit breaker can work stably for a long time, a corresponding heat dissipation device is often required to be equipped. However, the existing circuit breaker heat dissipation device is lack of an effective dustproof structure, dust is easy to carry in air flowing in the running process and is attached to the surface of the circuit breaker, accumulated dust seriously affects the heat dissipation effect of the surface of the circuit breaker in the long-term use process, and meanwhile adverse effects are caused for the whole stable running. Disclosure of utility model The utility model aims to provide a heat dissipation device of an electric primary circuit breaker, which has the advantages of being capable of carrying out heat dissipation operation, effectively filtering dust in flowing air and bringing convenience to later cleaning and maintenance work of personnel. The technical scheme is that the electric primary circuit breaker radiating device comprises a mounting box, wherein a circuit breaker body is fixedly arranged in an inner cavity of the mounting box, a protective door is movably connected to the left end of the front surface of the mounting box through a hinge, a fixed cover is fixedly connected to the left side of the protective door, pin holes are formed in two sides of the inner cavity of the fixed cover, an air guide frame is slidably connected between the inner cavity of the fixed cover and the left side of the protective door, a pin rod is slidably connected between the surface of the pin holes and the surface of the air guide frame, a mounting frame plate is slidably connected between the left end of the inner cavity of the air guide frame and the left end of the top of the inner cavity of the fixed cover, a dust filter screen is fixedly arranged in the middle end of the mounting frame plate, a supporting frame is fixedly connected to the right end of the inner cavity of the air guide frame, a radiating fan is fixedly arranged at two ends of the supporting frame, a rotating shaft is movably connected to the middle end of the front surface of the air guide frame through a bearing, a rotating rod is fixedly connected to the back of the rotating shaft, and a connecting plate is movably connected between the surface of the rotating rod and the surface of the pin rod through a bearing. As the preferable scheme, the middle end of fixed cover has seted up the fresh air inlet, the fixed surface of fresh air inlet is connected with the second metal protection network, the air guide hole has been seted up to the middle end of guard gate, the fixed surface of air guide hole is connected with first metal protection network. As the preferable scheme, the exhaust holes are all formed in the two sides of the installation box, the installation plates are fixedly connected to the two sides of the back of the installation box, and the installation holes are formed in the surface of the installation plate. As a preferable scheme, a positioning hole is formed in the left end of the bottom of the inner cavity of the air guide frame, a positioning block is fixedly connected to the middle end of the bottom of the mounting frame plate, and the surface of the positioning block is slidably connected to the surface of the positioning hole. As the preferable scheme, the both ends of wind-guiding frame inner chamber all fixedly connected with direction slide bar, the surface sliding connection of round pin pole is in the surface of direction slide bar. As a preferable scheme, the front surface of the rotating shaft is fixedly connected with a rotating disc, and a torsion spring is fixedly connected between the surface of the rotating shaft and the inner cavity of the air guide frame. Preferably, the pin rod is T-shaped, and the rotating rod is U-shaped. Compared with the prior art, the utility model has the following beneficial effects: 1. According to the utility model, through the arrangement of the mounting box and the protective door, the breaker body can be placed and protected, and the outside air can be driven to be quickly blown