Power distribution cabinet with good heat dissipation performance

Abstract

The utility model proposes a power distribution cabinet with good heat dissipation performance, and the cabinet comprises a power distribution cabinet and a cabinet door, the front surface of the power distribution cabinet is movably connected with the cabinet door, the two sides and the back surface of the power distribution cabinet are provided with air inlets, the top of the power distribution cabinet is provided with a fan, and the air outlet end of the fan faces upwards. The inner side of a back plate of the power distribution cabinet is fixedly connected with a heat conduction patch, the back of the heat conduction patch is fixedly connected with a heat conduction frame, the heat conduction frame is fixedly connected with the back plate of the power distribution cabinet, and the back face of the heat conduction frame is fixedly connected with a heat dissipation frame. The power distribution cabinet has the advantages that the power distribution cabinet is good in heat dissipation performance, heat generated by a busbar and a disconnecting link in the power distribution cabinet can be rapidly conducted away for external heat dissipation, heat is not prone to being stored in the power distribution cabinet, the heat dissipation speed of the power distribution cabinet is increased, overheating is avoided, and normal operation of equipment is guaranteed. And the stability and the safety of a power system can be effectively improved. And through timely heat dissipation, accelerated aging of components due to overheating can be avoided, so that the service life of the power distribution cabinet is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution cabinets, in particular to a distribution cabinet with good heat dissipation performance. Background Technique

[0002] A distribution cabinet is a device used for power distribution and control. It usually consists of multiple circuit elements and protection devices, which are used to distribute electric energy to each electrical equipment and ensure the safe, stable and reliable operation of the power system.

[0003] The structure of the distribution cabinet generally includes parts such as a cabinet body, circuit elements, protection devices, and control devices. The cabinet body is the main structure of the distribution cabinet, usually made of metal materials, with good electrical conductivity and corrosion resistance. The circuit elements include circuit breakers, contactors, relays, etc., which are used to control the on-off and distribution of electricity. The protection devices include overcurrent protectors, overvoltage protectors, leakage protectors, etc., which are used to protect the circuit and equipment from damage. The control devices include buttons, indicator lights, meters, etc., which are used to monitor and control the operating state of the power system.

[0004] In the prior art, the heat generated on the back inside the distribution cabinet is relatively large, and it is located inside the distribution cabinet. Only relying on the internal fan for ventilation and heat dissipation cannot achieve the rapid dissipation of heat, and it is easy to store heat. The reason is that components such as busbars and knife switches are arranged in the narrow space of the distribution cabinet, and insulating heat shrinkable sleeves are often used for the busbars to increase insulation. If the copper quality of the busbar is not up to standard or the connection points are not fastened, the contact resistance will increase, resulting in a large amount of heat generation. If the heat is not dissipated in time, it will accelerate the aging of the internal components of the distribution cabinet and reduce its service life. Content of the Utility Model

[0005] The purpose of the utility model aims to solve at least one of the above technical defects.

[0006] For this reason, an object of the utility model is to provide a distribution cabinet with good heat dissipation performance to solve the problems mentioned in the background technique and overcome the deficiencies existing in the prior art.

[0007] To achieve the above object, an embodiment of one aspect of the utility model provides a distribution cabinet with good heat dissipation performance, including a distribution cabinet and a cabinet door. The cabinet door is movably connected to the front of the distribution cabinet. Air inlets are provided on both sides and the back of the distribution cabinet. A fan is installed on the top of the distribution cabinet, and the air outlet end of the fan faces upward.

[0008] A heat conduction patch is fixedly connected to the inner side of the back plate of the distribution cabinet. A heat conduction frame is fixedly connected to the back of the heat conduction patch. The heat conduction frame is fixedly connected to the back plate of the distribution cabinet. A heat dissipation frame is fixedly connected to the back of the heat conduction frame.

[0009] The heat dissipation rack is horizontally arranged, and a plurality of heat dissipation holes are formed in the heat dissipation rack, and the heat dissipation holes are arranged in a honeycomb shape on the heat dissipation rack;

[0010] A bracket is fixedly connected to the back of the power distribution cabinet, and a secondary fan is fixedly connected to the end of the bracket. The air outlet end of the secondary fan faces upward, and the air outlet end of the secondary fan faces the heat dissipation rack.

[0011] Preferably, according to any of the above solutions, the power distribution cabinet is formed by riveting a plurality of sheet metal plates, and the number of fans is at least two.

[0012] Adopting the above technical solution: The core structure of this power distribution cabinet is: heat conduction patch, heat conduction rack, heat dissipation rack, heat dissipation holes, bracket, secondary fan. The core advantages of this power distribution cabinet are: good heat dissipation performance, which can quickly conduct away the heat generated at the busbars and knife switches inside the power distribution cabinet for external heat dissipation, and it is not easy to store heat inside, improving its heat dissipation speed, avoiding overheating, and ensuring the normal operation of the equipment. It can effectively improve the stability and safety of the power system. By dissipating heat in time, it is possible to avoid the accelerated aging of components due to overheating, thereby extending the service life of the power distribution cabinet.

[0013] Specifically, a heat conduction patch, heat conduction rack and heat dissipation rack structure with high thermal conductivity and high insulation is designed. The heat conduction patch is attached to the busbars and knife switches inside the power distribution cabinet, and can transfer the heat here to the heat conduction rack and heat dissipation rack. At the same time, a large number of honeycomb-shaped heat dissipation hole structures are designed. The inner walls of the heat dissipation holes are all heat dissipation surfaces, which greatly increases the heat dissipation area. At the same time, two secondary fans are designed to blow directly below the heat dissipation rack, and the air quickly flows through the heat dissipation holes, which can quickly dissipate the heat of the heat dissipation rack, thereby quickly dissipating the heat generated at the busbars and knife switches inside the power distribution cabinet.

[0014] Preferably, according to any of the above solutions, the heat conduction patch is made of alumina ceramic material, and the heat conduction patch is attached to the busbars and knife switches inside the power distribution cabinet.

[0015] Adopting the above technical solution: The heat conduction patch, heat conduction rack and heat dissipation rack are all made of insulating and highly heat-conductive alumina ceramic material.

[0016] Preferably, according to any of the above solutions, the heat conduction rack and heat dissipation rack are made of alumina ceramic material, and the vertical cross-sectional shape of the heat conduction rack is trapezoidal.

[0017] Preferably, according to any of the above solutions, the heat dissipation holes penetrate the heat dissipation rack up and down, and the heat dissipation holes are hexagonal.

[0018] Preferably, according to any of the above solutions, the end of the bracket is connected to the power distribution cabinet by screws, and the secondary fan is located directly below the heat dissipation rack.

[0019] Compared with the prior art, the advantages and beneficial effects of the present utility model are:

[0020] The power distribution cabinet with good heat dissipation performance is designed with a heat-conducting patch, a heat-conducting frame, a heat dissipation frame, heat dissipation holes, a bracket, and an auxiliary fan. It has a heat-conducting patch, a heat-conducting frame, and a heat dissipation frame structure with high thermal conductivity and high insulation. The heat-conducting patch is attached to the busbars and knife switches inside the power distribution cabinet, transferring the heat here to the heat-conducting frame and the heat dissipation frame. A large number of honeycomb-shaped heat dissipation hole structures are designed, and the inner walls of the heat dissipation holes are all heat dissipation surfaces, greatly increasing the heat dissipation area. At the same time, two auxiliary fans are designed to blow directly below the heat dissipation frame, and the air quickly flows through the heat dissipation holes. The air flow velocity on the inner walls of the heat dissipation holes is fast, which can quickly dissipate the heat of the heat dissipation frame, thereby quickly dissipating the heat generated at the busbars and knife switches inside the power distribution cabinet.

[0021] This power distribution cabinet has good heat dissipation performance, can quickly conduct away the heat generated at the busbars and knife switches inside the power distribution cabinet for external heat dissipation, is not easy to store heat inside, improves its heat dissipation speed, avoids overheating, and ensures the normal operation of the equipment. It can effectively improve the stability and safety of the power system. By dissipating heat in a timely manner, it can prevent components from accelerating aging due to overheating, thereby extending the service life of the power distribution cabinet.

[0022] Additional aspects and advantages of the present utility model will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present utility model. Brief Description of the Drawings

[0023] The above and / or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0024] Figure 1 is a schematic structural diagram of the first perspective of the present utility model;

[0025] Figure 2 is a schematic structural diagram of the second perspective of the present utility model;

[0026] Figure 3 is a schematic structural diagram of the third perspective of the present utility model;

[0027] Figure 4 is a schematic structural diagram of the fourth perspective of the present utility model.

[0028] In the figure: 1 - power distribution cabinet, 2 - cabinet door, 3 - air inlet, 4 - fan, 5 - heat-conducting patch, 6 - heat-conducting frame, 7 - heat dissipation frame, 8 - heat dissipation hole, 9 - bracket, 10 - auxiliary fan. Detailed Description of the Embodiments

[0029] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model.

[0030] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] As Figures 1-4 shown, the power distribution cabinet with good heat dissipation performance includes a power distribution cabinet 1 and a cabinet door 2. The cabinet door 2 is movably connected to the front of the power distribution cabinet 1. Air inlets 3 are provided on both sides and the back of the power distribution cabinet 1. A fan 4 is installed on the top of the power distribution cabinet 1, and the air outlet end of the fan 4 faces upward;

[0032] A heat conduction patch 5 is fixedly connected to the inner side of the back plate of the power distribution cabinet 1. A heat conduction frame 6 is fixedly connected to the back of the heat conduction patch 5. The heat conduction frame 6 is fixedly connected to the back plate of the power distribution cabinet 1. A heat dissipation frame 7 is fixedly connected to the back of the heat conduction frame 6;

[0033] The heat dissipation frame 7 is arranged horizontally, and a plurality of heat dissipation holes 8 are provided on the heat dissipation frame 7. The heat dissipation holes 8 are arranged in a honeycomb shape on the heat dissipation frame 7;

[0034] A support 9 is fixedly connected to the back of the power distribution cabinet 1. An auxiliary fan 10 is fixedly connected to the end of the support 9. The air outlet end of the auxiliary fan 10 faces upward, and the air outlet end of the auxiliary fan 10 faces the heat dissipation frame 7.

[0035] Embodiment 1: The power distribution cabinet 1 is formed by riveting a plurality of sheet metal plates, and the number of fans 4 is at least two. The heat conduction patch 5 is made of alumina ceramic material, and the heat conduction patch 5 is attached to the busbars and knife switches inside the power distribution cabinet 1. These components are arranged in the narrow space of the switch cabinet. In order to increase insulation, the busbars often use insulating heat shrinkable tubes. If the copper quality of the busbars is not up to standard or the connection points are not tightened, the contact resistance will increase, resulting in a large amount of heat generation. The heat conduction patch 5, the heat conduction frame 6, and the heat dissipation frame 7 are all made of insulating and highly heat-conductive alumina ceramic materials. It will not cause the problem of electric leakage due to the addition of this mechanism.

[0036] Embodiment 2: The heat-conducting frame 6 and the heat-dissipating frame 7 are made of alumina ceramic. The vertical cross-sectional shape of the heat-conducting frame 6 is trapezoidal. The heat-dissipating holes 8 penetrate through the heat-dissipating frame 7 from top to bottom, and the heat-dissipating holes 8 are hexagonal. The end of the bracket 9 is connected to the power distribution cabinet 1 by screws, and the auxiliary fan 10 is located directly below the heat-dissipating frame 7.

[0037] The working principle of the present utility model is as follows:

[0038] S1. The power distribution cabinet 1 is formed by riveting a plurality of sheet metal plates;

[0039] S2. Preliminary heat-dissipating and ventilation means: The fan 4 is started, and air enters the power distribution cabinet 1 through a plurality of air inlets 3 and is output through the fan 4, realizing preliminary ventilation in the power distribution cabinet 1;

[0040] S3. The heat-conducting patch 5 is attached to the busbars and knife switches inside the power distribution cabinet 1, and the heat here can be transferred to the heat-conducting frame 6 and the heat-dissipating frame 7. A large number of honeycomb-shaped heat-dissipating hole 8 structures are designed. The inner walls of the heat-dissipating holes 8 are all heat-dissipating surfaces, greatly increasing the heat-dissipating area. At the same time, two auxiliary fans 10 are designed to blow directly below the heat-dissipating frame 7, and air quickly flows through the heat-dissipating holes 8. The air flow rate on the inner walls of the heat-dissipating holes 8 is fast, which can quickly dissipate the heat of the heat-dissipating frame 7, thereby quickly dissipating the heat generated at the busbars and knife switches inside the power distribution cabinet 1.

[0041] Compared with the prior art, the present utility model has the following beneficial effects compared with the prior art:

[0042] For the power distribution cabinet with good heat-dissipating performance, through the coordinated setting of the heat-conducting patch 5, the heat-conducting frame 6, the heat-dissipating frame 7, the heat-dissipating holes 8, the bracket 9, and the auxiliary fan 10, a heat-conducting patch 5, a heat-conducting frame 6, and a heat-dissipating frame 7 structure with high thermal conductivity and high insulation is designed. The heat-conducting patch 5 is attached to the busbars and knife switches inside the power distribution cabinet 1, and the heat here can be transferred to the heat-conducting frame 6 and the heat-dissipating frame 7. A large number of honeycomb-shaped heat-dissipating hole 8 structures are designed. The inner walls of the heat-dissipating holes 8 are all heat-dissipating surfaces, greatly increasing the heat-dissipating area. At the same time, two auxiliary fans 10 are designed to blow directly below the heat-dissipating frame 7, and air quickly flows through the heat-dissipating holes 8. The air flow rate on the inner walls of the heat-dissipating holes 8 is fast, which can quickly dissipate the heat of the heat-dissipating frame 7, thereby quickly dissipating the heat generated at the busbars and knife switches inside the power distribution cabinet 1;

[0043] This power distribution cabinet 1 has good heat-dissipating performance, can quickly conduct away the heat generated at the busbars and knife switches inside the power distribution cabinet 1 for external heat dissipation, is not easy to store heat inside, improves its heat-dissipating speed, avoids overheating, and ensures the normal operation of the equipment. It can effectively improve the stability and safety of the power system. By dissipating heat in time, it can avoid the accelerated aging of components due to overheating, thereby extending the service life of the power distribution cabinet 1.

Claims

1. A power distribution cabinet with good heat dissipation performance, characterized in that: The invention comprises a power distribution cabinet (1) and a cabinet door (2), wherein the front of the power distribution cabinet (1) is movably connected to the cabinet door (2), air inlets (3) are provided on both sides and the back of the power distribution cabinet (1), and a fan (4) is installed on the top of the power distribution cabinet (1), with the air outlet end of the fan (4) facing upwards; A heat-conducting patch (5) is fixedly connected to the inner side of the back plate of the power distribution cabinet (1); a heat-conducting frame (6) is fixedly connected to the back of the heat-conducting patch (5); the heat-conducting frame (6) is fixedly connected to the back plate of the power distribution cabinet (1); and a heat dissipation frame (7) is fixedly connected to the back of the heat-conducting frame (6); The heat dissipation frame (7) is arranged horizontally, and a plurality of heat dissipation holes (8) are opened on the heat dissipation frame (7), and the heat dissipation holes (8) are arranged in a honeycomb shape on the heat dissipation frame (7); The back of the power distribution cabinet (1) is fixedly connected to a bracket (9), the end of the bracket (9) is fixedly connected to an auxiliary fan (10), the air outlet end of the auxiliary fan (10) faces upward, and the air outlet end of the auxiliary fan (10) faces the heat dissipation frame (7).

2. A power distribution cabinet with good heat dissipation performance as claimed in claim 1, characterized in that: The power distribution cabinet (1) is formed by riveting a plurality of sheet metal plates, and the number of the fans (4) is at least two.

3. A power distribution cabinet with good heat dissipation performance as claimed in claim 2, characterized in that: The thermally conductive patch (5) is made of alumina ceramic material, and the thermally conductive patch (5) is attached to the busbar and the switch inside the power distribution cabinet (1).

4. A power distribution cabinet with good heat dissipation performance as claimed in claim 3, characterized in that: The heat-conducting frame (6) and the heat-dissipating frame (7) are made of alumina ceramics, and the vertical cross-section of the heat-conducting frame (6) is a trapezoid.

5. A power distribution cabinet with good heat dissipation performance as claimed in claim 4, characterized in that: The heat dissipation hole (8) passes through the heat dissipation frame (7) from top to bottom, and the heat dissipation hole (8) is hexagonal.

6. A power distribution cabinet with good heat dissipation performance as claimed in claim 5, characterized in that: The end of the bracket (9) is connected to the power distribution cabinet (1) by means of screws, and the auxiliary fan (10) is located directly below the heat dissipation frame (7).

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