Plugging device of circuit breaker

Abstract

The utility model relates to a plugging device of a circuit breaker, and aims to solve the problems that the current circuit breaker is inconvenient to mount and dismount, the plugging device of the circuit breaker is lack of an auxiliary heat dissipation mechanism and cannot effectively dissipate heat, the plugging device comprises a mounting seat, the top of the mounting seat is in sliding connection with a base, and an extrusion positioning mechanism is arranged in the base. The circuit breaker comprises a mounting base, a circuit breaker body is arranged above the mounting base, heat dissipation grids are fixedly connected to the two sides of the circuit breaker body, a heat dissipation bin is fixedly connected to the top of the circuit breaker body, an anti-overheating mechanism is arranged in the heat dissipation bin, and an extrusion positioning mechanism comprises a gear rotating rod, a mounting sleeve, an extrusion plate and a limiting rod. According to the utility model, the time required for mounting and dismounting the circuit breaker is greatly shortened, the heat dissipation effect of the circuit breaker can be effectively improved, and overheating protection caused by overhigh temperature of the circuit breaker is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to low voltage field, concretely is a kind of plug device of circuit breaker. BACKGROUND

[0002] Circuit breaker is a kind of switch device for closing, carrying and breaking current under normal or abnormal loop condition, is usually installed in the cabinet body of distribution cabinet, plug-in connection is one of many connection modes of circuit breaker, that is, circuit breaker is electrically connected with external conducting piece by clamping contact.

[0003] In actual application, the plug device of traditional circuit breaker needs to be operated by operator when installing and dismounting circuit breaker, the rocker is pulled out from the inside of circuit breaker, then the remote sensing hexagonal positioning head is inserted into circuit breaker and rotated for a long time, so that circuit breaker is removed from the installation cabinet, the stroke of rocker is too long during dismounting process, and the same reason is applied when installing, so that it is time-consuming and laborious to operate, and the efficiency is low, and the circuit breaker on the plug device of traditional circuit breaker lacks auxiliary heat dissipation mechanism, so that the circuit breaker above may not be effectively cooled after long time work, so that the internal temperature is too high to make the circuit breaker enter overheat protection, and the stability of circuit breaker during work is affected.

[0004] For example, when the staff dismounts the circuit breaker, the rocker needs to be manually pulled out from the inside of the circuit breaker, then the remote sensing hexagonal positioning head is inserted into the circuit breaker and rotated for a long time without interruption, so that the circuit breaker is moved out of the installation cabinet, and the same reason is applied when the circuit breaker is installed, so that it is time-consuming and laborious to install and dismount the circuit breaker, and the efficiency is low, and when the circuit breaker works for a long time, the internal temperature continues to rise, and when the circuit breaker works in high temperature state for a long time, the internal temperature is too high to make the circuit breaker enter overheat protection, and the stability of circuit breaker during work is affected. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the deficiency of prior art, adapting to reality needs, providing a kind of plug device of circuit breaker to solve the current when installing and dismounting circuit breaker, and the rocker needs to be inserted into circuit breaker and rotated for a long time by operator, so that circuit breaker is removed from the installation cabinet, it is time-consuming and laborious to operate, and the efficiency is low, and the plug device of traditional circuit breaker lacks auxiliary heat dissipation mechanism, so that the circuit breaker cannot be effectively cooled after long time work, so that the circuit breaker enters overheat protection, and the stability of circuit breaker during work is affected.

[0006] In order to realize the purpose of the utility model, the technical scheme adopted by the utility model is as follows: a kind of plug device of circuit breaker is designed, including mounting seat, the top of mounting seat is slidably connected with base, extrusion positioning mechanism is arranged in the inside of base;

[0007] The upper part of the mounting seat is provided with a circuit breaker body, both sides of the circuit breaker body are fixedly connected with a heat dissipation grille, the top of the circuit breaker body is fixedly connected with a heat dissipation bin, and the inside of the heat dissipation bin is provided with an anti-overheating mechanism.

[0008] In the scheme, the mounting seat can be extruded and contacted by the extrusion plate in the extrusion positioning mechanism, the base is fixed on the mounting seat, the position of the circuit breaker body above is fixed, the time required for the staff to fix the circuit breaker when disassembling and installing the circuit breaker is reduced, the heat generated by the circuit breaker body during work is absorbed by the heat conduction plate in the anti-overheating mechanism and conducted to the heat dissipation plate, and then the heat absorbed by the heat dissipation plate is cooled by contacting the heat dissipation plate with the air outside.

[0009] Preferably, the extrusion positioning mechanism comprises a gear rotating rod, a mounting sleeve, an extrusion plate and a limiting rod, the gear rotating rod is rotatably connected to the inner cavity of the base, and one end of the gear rotating rod on both sides penetrates the base and extends to the outside of the base.

[0010] In actual application, the mounting sleeve mounted on the gear rotating rod is moved by rotating the gear rotating rod, the extrusion plate on the mounting sleeve is in contact with or separated from the mounting seat, and the installation or disassembly of the circuit breaker is completed.

[0011] Preferably, the outside wall of the gear rotating rod on both sides is screwed with a mounting sleeve, one end of the mounting sleeve on both sides is fixedly connected with an extrusion plate, the extrusion plate is in contact with the mounting seat, one side of the extrusion plate is fixedly connected with a limiting rod, and one end of the limiting rod is fixedly connected with the base.

[0012] In actual application, the extrusion plate is limited by the limiting rod when moving along with the mounting sleeve and the gear rotating rod, the extrusion plate can move vertically and contact and extrude the mounting seat, and the circuit breaker is fixed.

[0013] Preferably, one side of the base is rotatably connected with a connecting rod, one end of the connecting rod penetrates the base and extends to the inner cavity of the base, one end of the connecting rod is fixedly connected with a drive gear, the drive gear is in meshing connection with the gear rotating rod, and the other end of the connecting rod is fixedly connected with a rotating handle.

[0014] In actual application, the connecting rod is rotated by holding the rotating handle, the drive gear mounted on the connecting rod drives the gear rotating rod to rotate, the mounting sleeve connected with the gear rotating rod is moved, and the extrusion plate is extruded and contacted with the mounting seat.

[0015] Preferably, the anti-overheating mechanism comprises a flow guide groove, a mounting groove, a heat conduction plate, a heat dissipation plate and a flow guide groove, the flow guide groove is arranged on both sides of the heat dissipation bin, and the mounting groove is arranged at the bottom of the inner cavity of the heat dissipation bin.

[0016] In actual application, the heat conduction plate is mounted through the mounting groove, and the heat of the internal elements of the circuit breaker in contact with the heat conduction plate is absorbed and guided to the heat dissipation plate, so that the circuit breaker body is cooled.

[0017] Preferably, the inner side of the mounting groove is fixedly connected with the heat conduction plate, the bottom of the heat conduction plate penetrates through the circuit breaker body and extends to the inside of the circuit breaker body, the top of the heat conduction plate is fixedly connected with the heat dissipation plate, and the heat dissipation plates are arranged in sequence, and the side of the heat dissipation plate is provided with the flow guide groove, and the flow guide grooves are arranged in sequence.

[0018] In actual application, the heat absorbed by the heat conduction plate is received by the heat dissipation plate, and then when the external gas enters the inside of the heat dissipation bin through the flow guide groove arranged on both sides of the heat dissipation bin, the external gas is in contact with the heat dissipation plate and further increases the contact area of the external gas and the heat dissipation plate through the flow guide groove arranged on the heat dissipation plate, so that the cooling effect of the heat dissipation plate is improved.

[0019] Compared with the prior art, the utility model has the advantages that:

[0020] 1. The utility model discloses a combination of the extrusion positioning mechanism, the base is slidably installed on the mounting seat, and after the base is pushed into place, the connecting rod is rotated by holding the rotating handle, the driving gear on the connecting rod drives the gear rotating rod to rotate, the mounting sleeve on the gear rotating rod is moved when the gear rotating rod rotates, and the extrusion plate is limited by the limiting rod when the extrusion plate moves with the mounting sleeve and the gear rotating rod, so that the extrusion plate can move vertically and contact and extrude the mounting seat, the extrusion plate cooperates with the mounting seat to limit and fix the circuit breaker body, the installation of the circuit breaker is completed, and when disassembling, the connection between the base and the mounting seat can be cancelled by reversing the rotating handle, and then the circuit breaker can be disassembled, so that the time required for installing and disassembling the circuit breaker is greatly simplified.

[0021] 2. The utility model discloses a combination of the anti-overheating mechanism, the heat of the internal elements of the circuit breaker in contact with the heat conduction plate is absorbed and guided to the heat dissipation plate through the heat conduction plate mounted in the mounting groove, and then the heat absorbed by the heat conduction plate is received by the heat dissipation plate, and then when the external gas enters the inside of the heat dissipation bin through the flow guide groove arranged on both sides of the heat dissipation bin, the external gas is in contact with the heat dissipation plate and further increases the contact area of the external gas and the heat dissipation plate through the flow guide groove arranged on the heat dissipation plate, so that the cooling effect of the heat dissipation plate is improved, so that the heat dissipation effect of the circuit breaker can be effectively improved, and the circuit breaker is prevented from entering the overheating protection due to the excessively high temperature. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the front view three-dimensional structure schematic diagram of the utility model;

[0023] Figure 2 It is the cross section structure schematic diagram of the utility model's extrusion positioning mechanism;

[0024] Figure 3 It is the cross section structure schematic diagram of the utility model's anti-overheating mechanism;

[0025] Figure 4 It is the front view plane structure schematic diagram of the utility model.

[0026] In the drawing: 100, mounting seat;110, base;120, gear rotating rod;121, mounting sleeve;130, extrusion plate;131, limiting rod;140, connecting rod;141, drive gear;142, rotating handle;

[0027] 200, circuit breaker body;210, heat dissipation grid;220, heat dissipation bin;221, drainage groove;222, mounting groove;230, heat conduction plate;240, heat dissipation plate;241, flow guide groove. DETAILED DESCRIPTION

[0028] The utility model is further explained in connection with the drawings and examples:

[0029] Example 1: a kind of plug-in device of circuit breaker, referring to Figures 1 to 4 , including mounting seat 100, the top of mounting seat 100 is slidably connected with base 110, the inside of base 110 is provided with extrusion positioning mechanism, the top of mounting seat 100 is provided with circuit breaker body 200, the both sides of circuit breaker body 200 are fixedly connected with heat dissipation grid 210, the top of circuit breaker body 200 is fixedly connected with heat dissipation bin 220, the inside of heat dissipation bin 220 is provided with anti-overheating mechanism, extrusion positioning mechanism includes gear rotating rod 120, mounting sleeve 121, extrusion plate 130 and limiting rod 131, gear rotating rod 120 is rotatably connected at the inside chamber both sides of base 110, the one end of both sides gear rotating rod 120 penetrates base 110 and extends to the outside of base 110, the outside wall of both sides gear rotating rod 120 is screwed with mounting sleeve 121, the one end of left and right mounting sleeve 121 is fixedly connected with extrusion plate 130, extrusion plate 130 is in contact with mounting seat 100, the side of extrusion plate 130 is fixedly connected with limiting rod 131, the one end of limiting rod 131 is fixedly connected with base 110.

[0030] When the gear rotating rod 120 rotates, the mounting sleeve 121 mounted on the gear rotating rod 120 moves, and when the pressing plate 130 moves following the rotation of the gear rotating rod 120, the pressing plate 130 is limited by the limiting rod 131, so that the pressing plate 130 can move vertically and contact and press the mounting seat 100, so that the pressing plate 130 cooperates with the mounting seat 100 to limit and fix the circuit breaker body 200, the installation of the circuit breaker is completed, and when disassembling, the connection between the base 110 and the mounting seat 100 can be cancelled by reversing the rotating handle 142, and then the circuit breaker can be disassembled, so that the time required for installing and disassembling the circuit breaker is greatly simplified.

[0031] For example, when installing and disassembling the conventional circuit breaker plug-in device, the operator needs to pull out the rocker from the inside of the circuit breaker, then insert the remote sensing hexagonal positioning head into the circuit breaker and rotate for a long time, so that the circuit breaker is removed from the installation cabinet body. However, the stroke of the rocker during disassembly is too long, but the gear rotating rod 120 in the pressing positioning mechanism is rotated to move the mounting sleeve 121, so that the pressing plate 130 mounted on the mounting sleeve 121 presses the mounting seat 100 to fix the position of the circuit breaker, which can greatly simplify the operation amount required for fixing the installation and disassembly of the circuit breaker, and facilitate the installation and disassembly process of the circuit breaker.

[0032] Specifically, referring to Figures 1 to 4 One side of the base 110 is rotatably connected with the connecting rod 140, one end of the connecting rod 140 penetrates through the base 110 and extends to the inner cavity of the base 110, and one end of the connecting rod 140 is fixedly connected with the driving gear 141, the driving gear 141 is engaged with the gear rotating rod 120, the other end of the connecting rod 140 is fixedly connected with the rotating handle 142, and the connecting rod 140 is rotated by holding the rotating handle 142, so that the driving gear 141 mounted on the connecting rod 140 drives the gear rotating rod 120 to rotate.

[0033] It is worth mentioning that, referring to Figures 1 to 3 The anti-overheating mechanism includes a drainage groove 221, a mounting groove 222, a heat conduction plate 230, a heat dissipation plate 240, and a flow guide groove 241. The drainage groove 221 is opened on both sides of the heat dissipation bin 220. The mounting groove 222 is opened at the bottom of the inner cavity of the heat dissipation bin 220. The heat conduction plate 230 is fixedly connected to the inner side of the mounting groove 222. The bottom of the heat conduction plate 230 penetrates through the circuit breaker body 200 and extends to the inside of the circuit breaker body 200. The heat dissipation plate 240 is fixedly connected to the top of the heat conduction plate 230, and the heat dissipation plates 240 are arranged in sequence. The flow guide groove 241 is opened on one side of the heat dissipation plate 240, and the flow guide grooves 241 are arranged in sequence.

[0034] The heat of the circuit breaker internal element in contact with the heat conduction plate 230 installed in the installation groove 222 is absorbed and guided to the heat dissipation plate 240, then the heat absorbed by the heat conduction plate 230 is received by the heat dissipation plate 240, then when the external gas enters the heat dissipation warehouse 220 through the drainage groove 221 opened on the two sides of the heat dissipation warehouse 220, the external gas is in contact with the heat dissipation plate 240 and further increases the contact area of the external gas and the heat dissipation plate 240 through the flow guide groove 241 opened on the heat dissipation plate 240, thereby improving the cooling effect of the heat dissipation plate 240, so that the heat dissipation effect of the circuit breaker can be effectively improved, and the circuit breaker is prevented from entering overheat protection due to high temperature.

[0035] For example, the traditional circuit breaker lacks an auxiliary heat dissipation mechanism during use, so that the circuit breaker cannot be effectively cooled after long time work, and the circuit breaker enters overheat protection, but the heat conduction plate 230 in the overheat prevention mechanism of the present application absorbs the heat of the circuit breaker and conducts it to the heat dissipation plate 240, so that the heat dissipation plate 240 is in contact with the external gas and evaporates the heat, thereby assisting the cooling of the working circuit breaker, preventing the circuit breaker from entering overheat protection due to high temperature, and increasing the stability of the circuit breaker during work.

[0036] It should be noted that the circuit breaker refers to a switching device capable of closing, carrying and opening the current under normal loop conditions and capable of closing, carrying and opening the current under abnormal loop conditions within a specified time, and the circuit breaker is divided into high-voltage circuit breaker and low-voltage circuit breaker according to its use range, and the high-low voltage boundary is relatively vague, and generally 3kV or more is called high-voltage electrical appliance, and the circuit breaker is generally composed of a contact system, an arc extinguishing system, an operating mechanism, a tripping device, a shell and the like, the contact system is composed of a contact and a static contact, the two are in close contact during normal work to ensure normal current flow, the arc extinguishing system is designed with a special labyrinth structure inside for rapid cooling and arc splitting, and the tripping device judges whether the circuit needs to be cut off, can sense abnormal current when overload or short circuit occurs, and make a decision to disconnect, and feedback to the operating mechanism to operate the circuit to disconnect;

[0037] In addition, the components of the utility model are all general standard components or components known by those skilled in the art, the structure and principle of which can be known by the technical personnel through technical manual or through conventional experimental method, and the technical personnel in the art can fully realize without further description, and the content protected by the utility model does not involve improvement of internal structure and method.

[0038] The embodiments of the utility model disclose the preferred embodiments, but are not limited to this, and the ordinary skilled in the art can easily understand the spirit of the utility model according to the above-mentioned embodiments, and make different inferences and changes, as long as they do not deviate from the spirit of the utility model, they are within the protection scope of the utility model.

Claims

1. A plug-in device of a circuit breaker, comprising a mounting seat (100), a base (110) is slidingly connected to the top of the mounting seat (100), characterized in that, The inside of the base (110) is provided with an extrusion positioning mechanism; The upper portion of the mounting seat (100) is provided with a circuit breaker body (200), both sides of the circuit breaker body (200) are fixedly connected with heat dissipation grilles (210), the top of the circuit breaker body (200) is fixedly connected with a heat dissipation bin (220), the inside of the heat dissipation bin (220) is provided with an anti-overheating mechanism.

2. A plug-in unit for a circuit breaker according to claim 1, characterized in that The extrusion positioning mechanism comprises gear rotating rods (120), mounting sleeves (121), extrusion plates (130) and limiting rods (131), the gear rotating rods (120) are rotatably connected to the two sides of the inner cavity of the base (110), and one end of the gear rotating rods (120) on the two sides penetrates through the base (110) and extends to the outside of the base (110).

3. A plug-in unit for a circuit breaker according to claim 2, characterized in that The outer side walls of the gear rotating rods (120) on the two sides are screwed with mounting sleeves (121), one end of the mounting sleeves (121) on the left and right sides is fixedly connected with an extrusion plate (130), the extrusion plate (130) is in contact with the mounting seat (100), one side of the extrusion plate (130) is fixedly connected with a limiting rod (131), and one end of the limiting rod (131) is fixedly connected with the base (110).

4. A plug-in unit for a circuit breaker according to claim 3, characterized in that One end of the connecting rod (140) penetrates through the base (110) and extends to the inner cavity of the base (110), and one end of the connecting rod (140) is fixedly connected with a driving gear (141), the driving gear (141) is in meshing connection with the gear rotating rod (120), and the other end of the connecting rod (140) is fixedly connected with a rotating handle (142).

5. The plug-in unit of claim 1, wherein The anti-overheating mechanism comprises drainage grooves (221), mounting grooves (222), heat conduction plates (230), heat dissipation plates (240) and flow guide grooves (241), the drainage grooves (221) are formed in the two sides of the heat dissipation bin (220), and the mounting grooves (222) are formed in the bottom of the inner cavity of the heat dissipation bin (220).

6. A plug-in unit for a circuit breaker according to claim 5, characterized in that The inner side of the mounting groove (222) is fixedly connected with a heat conduction plate (230), one end of the heat conduction plate (230) penetrates through the circuit breaker body (200) and extends to the inside of the circuit breaker body (200), the top of the heat conduction plate (230) is fixedly connected with a heat dissipation plate (240), the heat dissipation plates (240) are sequentially arranged, and one side of the heat dissipation plate (240) is provided with a flow guide groove (241), and the flow guide grooves (241) are sequentially arranged.

Images