Explosion-proof cabinet heat dissipation system

Abstract

The utility model relates to the technical field of explosion-proof cabinets, and particularly discloses an explosion-proof cabinet heat dissipation system, which comprises a cabinet body plate, a heat dissipation coil pipe, a heat conduction substrate and an explosion-proof heat dissipation fan, the heat dissipation coil pipe is fixedly connected with the heat conduction substrate, one end, far away from the heat dissipation coil pipe, of the heat conduction substrate abuts against a frequency converter, and the explosion-proof heat dissipation fan is fixedly connected with the cabinet body plate. The heat dissipation coil pipe and the heat conduction substrate are both located in the explosion-proof cabinet. The two ends of the heat dissipation coil pipe are fixedly connected in the cabinet body plate, one end of the heat dissipation coil pipe is an air inlet, the other end of the heat dissipation coil pipe is an air outlet, and pipe cavities of the heat dissipation coil pipe are communicated with the external environment; and the explosion-proof heat dissipation fan is fixedly connected to the air outlet at the outer side of the cabinet body plate. Cold air in the external environment enters the heat dissipation coil pipe from the air inlet, exchanges heat with the heat conduction substrate and then is sucked out from the air outlet through the explosion-proof heat dissipation fan to form air cooling circulation so as to adjust the temperature in the explosion-proof cabinet, and the explosion-proof cabinet has the advantages of being simple in structure, convenient to install, low in energy consumption and good in heat dissipation efficiency and can be applied to the explosion-proof cabinet with high power and long working hours.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of explosion-proof cabinets, in particular to an explosion-proof cabinet heat dissipation system. BACKGROUND

[0002] In the field of industrial explosion-proof equipment, multiple electronic components such as frequency converters are installed in high-power explosion-proof cabinets, and the heat dissipation treatment of high-power explosion-proof cabinets has always been a key concern in technical research and development.

[0003] Conventional high-power explosion-proof cabinets usually use air conditioners to control temperature, which is stable and effective, and helps to ensure that the equipment runs stably at an appropriate temperature and prolongs the service life of the equipment. However, this method has many shortcomings. On the one hand, it has specific requirements for the space of the machine room, thereby limiting its application in space-limited places. On the other hand, it is difficult to ensure the explosion-proof level during the pipe process, and the air conditioner host heat dissipation will also interfere with the explosion-proof environment. At the same time, it is expensive and energy-consuming, and the requirements for the internal material of the cabinet are also high, which increases the equipment cost and maintenance difficulty.

[0004] Another common heat dissipation method is heat dissipation through fins. The heat dissipation fin structure is simple, the finished product cost is low, and the energy consumption is low, and it has certain application in some cost control is more strict and the heat dissipation requirement is not particularly high scene. However, the heat dissipation efficiency of this heat dissipation method is relatively low, and it is difficult to meet the heat dissipation demand of high-power explosion-proof cabinets in high-load operation, which is easy to cause the temperature in the explosion-proof cabinet to be too high and affect the normal operation of the equipment. At the same time, due to the relatively open heat dissipation structure of the heat dissipation fin, the sealing performance is poor, and therefore the protection level is low, which is difficult to apply to industrial environments with high explosion-proof requirements. CONTENT OF THE UTILITY MODEL

[0005] In order to solve the above technical problems, the present application provides an explosion-proof cabinet heat dissipation system, which is simple in structure, easy to install, low in energy consumption and good in heat dissipation efficiency, and can be applied to high-power long-time explosion-proof cabinets.

[0006] The explosion-proof cabinet heat dissipation system provided by the present application adopts the following technical scheme:

[0007] An explosion-proof cabinet heat dissipation system, comprising a frequency converter and a cabinet plate, further comprising a heat dissipation coil pipe, a heat conduction substrate and an explosion-proof heat dissipation fan, the heat dissipation coil pipe is fixedly connected with the heat conduction substrate, one end of the heat conduction substrate away from the heat dissipation coil pipe is in abutment with the frequency converter, and the heat dissipation coil pipe and the heat conduction substrate are both located in the explosion-proof cabinet; both ends of the heat dissipation coil pipe are fixedly connected in the cabinet plate, one end of the heat dissipation coil pipe is an air inlet, the other end of the heat dissipation coil pipe is an air outlet, and the lumen of the heat dissipation coil pipe is in communication with the external environment; and the explosion-proof heat dissipation fan is fixedly connected at the air outlet outside the cabinet plate.

[0008] The cold air in the external environment enters the heat dissipation coil through the air inlet, the heat of the frequency converter is transmitted to the heat dissipation coil through the heat conduction base plate, the cold air flows in the pipe cavity of the heat dissipation coil to exchange heat, the generated high-temperature air is sucked out from the air outlet through the explosion-proof heat dissipation fan, and the air cooling cycle is formed to adjust the temperature in the explosion-proof cabinet, so that the structure is simple, the installation is convenient, the energy consumption is low, and the heat dissipation efficiency is good; since the heat dissipation coil and the heat conduction base plate are located in the explosion-proof cabinet and are isolated from the external environment, and the high-temperature air is sucked out through the explosion-proof heat dissipation fan, the protection level of the explosion-proof cabinet is not affected, and the material of the cabinet plate is not particularly required.

[0009] Optionally, the heat dissipation coil is a U-shaped coil, the heat dissipation coil is parallel to the heat conduction base plate, and the heat dissipation coil and the heat conduction base plate are connected through spot welding; the heat conduction base plate is vertically arranged, and one end of the heat conduction base plate away from the heat dissipation coil abuts against the bottom plate of the frequency converter.

[0010] By adopting the above technical scheme, the bottom plate of the frequency converter is usually made of metal material and has good heat conduction performance, the heat generated by the frequency converter is conducted away through the bottom plate, the heat conduction base plate is abutted against the bottom plate of the frequency converter, and the U-shaped coil is adopted, so that the heat dissipation area is increased, the heat dissipation can be better achieved, and the arrangement of the existing electronic components is not greatly affected, and the method is suitable for long-time and high-power explosion-proof environment; the spot welding mode enables the heat dissipation pipe and the heat conduction base plate to be firmly connected, and the heat conduction performance is good, which is conducive to heat dissipation of the heat dissipation system of the explosion-proof cabinet.

[0011] Optionally, the air inlet is located below the air outlet.

[0012] By adopting the above technical scheme, the cold air flows from bottom to top in the heat dissipation coil, so that the cold air is more fully contacted with the heat dissipation coil, and the heat dissipation effect is improved.

[0013] Optionally, the two ends of the heat dissipation coil are fixedly connected with pipe joints, and the pipe joints are screw-connected with the cabinet plate.

[0014] By adopting the above technical scheme, the screw connection mode can form a close fit relationship and has a certain sealing effect, and the influence on the protection level of the explosion-proof cabinet is reduced.

[0015] Optionally, a fixing base is fixedly connected between the explosion-proof heat dissipation fan and the cabinet plate, a connecting hole is formed in the fixing base, and the connecting hole is communicated with the air outlet.

[0016] By adopting the above technical scheme, the fixing base provides stable support for the explosion-proof heat dissipation fan, the explosion-proof heat dissipation fan is firmly fixed on the cabinet plate, the shaking of the explosion-proof heat dissipation fan is reduced, and the service life is prolonged.

[0017] Optionally, a sealing adhesive layer is arranged between the explosion-proof cooling fan and the fixed base, and the sealing adhesive layer is used for sealing connection of the explosion-proof cooling fan and the fixed base.

[0018] By using the above technical scheme, the sealing adhesive layer makes the connection between the explosion-proof cooling fan and the fixed base stable, prevents dust and moisture from entering the interior of the explosion-proof cooling fan from the connection position of the explosion-proof cooling fan and the fixed base, and prolongs the service life of the explosion-proof cooling fan.

[0019] Optionally, an explosion-proof joint is arranged on the cabinet plate, and the power line of the explosion-proof cooling fan extends into the explosion-proof cabinet through the explosion-proof joint.

[0020] By using the above technical scheme, the power line of the explosion-proof cooling fan extends into the explosion-proof cabinet through the explosion-proof joint to provide power for the explosion-proof cooling fan, the explosion-proof joint provides a stable connection mode, reduces electrical faults caused by looseness, and has no influence on the protection level of the explosion-proof cabinet.

[0021] Optionally, a protective cover is arranged at the air inlet on the outer side of the cabinet plate.

[0022] By using the above technical scheme, the protective cover can reduce dust and sundries from entering the heat dissipation coil pipe, ensure the safety of operation of the explosion-proof cabinet, and prolong the service life of the equipment.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. Cold air in the external environment enters the heat dissipation coil pipe from the air inlet, heat of the frequency converter is transferred to the heat dissipation coil pipe through the heat conduction base plate, the cold air flows in the pipe cavity of the heat dissipation coil pipe for heat exchange, high-temperature air generated is sucked out from the air outlet by the explosion-proof cooling fan, an air cooling cycle is formed to adjust the temperature in the explosion-proof cabinet, and the structure is simple, convenient to install, low in energy consumption and good in heat dissipation efficiency.

[0025] 2. Since the heat dissipation coil pipe and the heat conduction base plate are located in the explosion-proof cabinet and are isolated from the external environment, and the high-temperature air is sucked out by the explosion-proof cooling fan, the protection level of the explosion-proof cabinet is not affected, and the material of the cabinet plate has no special requirements.

[0026] 3. Since the heat dissipation coil pipe adopts a U-shaped coil pipe, the heat dissipation area is increased, heat dissipation can be better achieved, and the arrangement of existing electronic components has little influence, and the explosion-proof environment is suitable for long-time and high-power use.

[0027] 4. By setting the fixed base, and the fixed base is connected with the explosion-proof cooling fan through the sealing glue layer, the fixed base provides stable support for the explosion-proof cooling fan, firmly fixes the explosion-proof cooling fan on the cabinet plate, reduces the shaking of the explosion-proof cooling fan, and prolongs the service life of the explosion-proof cooling fan. BRIEF DESCRIPTION OF DRAWINGS

[0028] Fig. 1 is the front view structure diagram of the embodiment of the application;

[0029] Fig. 2 is the side view structure diagram of the embodiment of the application.

[0030] Fig. 1, heat dissipation coil; 11, air inlet; 12, air outlet; 13, pipe joint; 2, heat-conducting base plate; 3, explosion-proof cooling fan; 4, frequency converter; 5, cabinet plate; 6, fixed base; 61, connecting hole; 7, sealing glue layer; 8, explosion-proof joint; 9, protective cover. DETAILED DESCRIPTION

[0031] The following will be described in detail in combination with the accompanying drawings. Figs. 1-2 The application will be further described in detail.

[0032] The embodiment of the application discloses an explosion-proof cabinet heat dissipation system. In order to facilitate description, electronic components in the explosion-proof cabinet are described by taking a frequency converter 4 as an example.

[0033] Referring to Figs. 1-2 , including a heat dissipation coil 1, a heat-conducting base plate 2 and an explosion-proof cooling fan 3, the heat dissipation coil 1 is fixedly connected to the heat-conducting base plate 2, one end of the heat-conducting base plate 2 away from the heat dissipation coil 1 abuts against the frequency converter 4, and the heat dissipation coil 1 and the heat-conducting base plate 2 are located in the explosion-proof cabinet; both ends of the heat dissipation coil 1 are fixedly connected to a cabinet plate 5 of the explosion-proof cabinet, one end of the heat dissipation coil 1 is an air inlet 11, the other end is an air outlet 12, and the cavities of the heat dissipation coil 1 are in communication with the external environment; the explosion-proof cooling fan 3 is fixedly connected to the outer side of the cabinet plate 5 of the explosion-proof cabinet, and the explosion-proof cooling fan 3 is located at the air outlet 12.

[0034] In work, cold air in the external environment enters the heat dissipation coil 1 from the air inlet 11, the heat of the frequency converter 4 is transmitted to the heat dissipation coil 1 through the heat-conducting base plate 2, the cold air flows in the cavity of the heat dissipation coil 1 to exchange heat, the generated high-temperature air is sucked out from the air outlet 12 through the explosion-proof cooling fan 3, an air cooling cycle is formed to adjust the temperature in the explosion-proof cabinet, the structure is simple, the installation is convenient, the energy consumption is low, and the heat dissipation efficiency is good. Since the heat dissipation coil 1 and the heat-conducting base plate 2 are located in the explosion-proof cabinet and are isolated from the external environment, and the high-temperature air is sucked out through the explosion-proof cooling fan 3, the protection level of the explosion-proof cabinet is not affected, and the material of the cabinet plate 5 has no special requirements.

[0035] The heat-conducting base plate 2 is vertically arranged and abuts against the bottom plate of the frequency converter 4 and is bonded by a heat-conducting adhesive layer; in this embodiment, the heat-conducting base plate 2 is a copper base plate. The heat-dissipating coil pipe 1 is a U-shaped coil pipe, is parallel to the heat-conducting base plate 2, and is connected to the heat-conducting base plate 2 by spot welding; the U-shaped coil pipe increases the heat-dissipating area, so that the heat-dissipating effect is better, and is suitable for long-time and high-power explosion-proof environments.

[0036] Both ends of the heat-dissipating coil pipe 1 are provided with pipe joints 13, the heat-dissipating coil pipe 1 is clamped in the pipe joints 13, and the outer periphery of the pipe joint 13 is provided with external threads, the pipe joint 13 is threadedly connected to the cabinet plate 5. The air inlet 11 of the heat-dissipating coil pipe 1 is located below the air outlet 12, cold air flows in the heat-dissipating coil pipe 1 from bottom to top, so that the cold air is more fully contacted with the heat-dissipating coil pipe 1, which helps to improve the heat-dissipating effect. In this embodiment, the pipe joint 13 is a copper pipe joint 13.

[0037] The explosion-proof heat-dissipating fan 3 is mounted at the air outlet 12 of the cabinet plate 5 by a fixing base 6. A sealing adhesive layer 7 is arranged between the explosion-proof heat-dissipating fan 3 and the fixing base 6, the sealing adhesive layer 7 has adhesion, and the explosion-proof heat-dissipating fan 3 is bonded to one end of the fixing base 6 away from the cabinet plate 5 by the sealing adhesive layer 7. The fixing base 6 is provided with a connecting hole 61, the connecting hole 61 is communicated with the air outlet 12 of the heat-dissipating coil pipe 1, so that high-temperature air in the heat-dissipating coil pipe 1 flows to the explosion-proof heat-dissipating fan 3 through the connecting hole 61. The fixing base 6 is provided with a fixing hole on the periphery, the axis of the fixing hole is perpendicular to the cabinet plate 5, and the fixing hole is used for penetrating a bolt to fix the fixing base 6 to the outside of the cabinet plate 5. In this embodiment, the fixing base 6 is an aluminum base.

[0038] The cabinet plate 5 is provided with an explosion-proof joint 8, and a power supply line of the explosion-proof heat-dissipating fan 3 extends into the explosion-proof cabinet through the explosion-proof joint 8 to provide power for the explosion-proof heat-dissipating fan 3.

[0039] The cabinet plate 5 is provided with a protective cover 9 at the air inlet 11, and the protective cover 9 is connected to the outside of the cabinet plate 5 by a bolt; the protective cover 9 can reduce dust and sundries from entering the heat-dissipating coil pipe 1, ensure the safety of the operation of the explosion-proof cabinet, and prolong the service life of the equipment.

[0040] The implementation principle of the explosion-proof cabinet heat-dissipating system disclosed in the embodiment is as follows: cold air in the external environment enters the heat-dissipating coil pipe 1 from the air inlet 11, the heat of the frequency converter 4 is transmitted to the heat-dissipating coil pipe 1 through the heat-conducting base plate 2, the cold air flows in the pipe cavity of the heat-dissipating coil pipe 1 to exchange heat, the generated high-temperature air is sucked out by the explosion-proof heat-dissipating fan 3, an air cooling cycle is formed to adjust the temperature in the explosion-proof cabinet and achieve heat dissipation; the explosion-proof cabinet heat-dissipating system is simple in structure, convenient to install, suitable for long-time and high-power explosion-proof environments, and can be used in IIC ring mirrors.

[0041] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A heat dissipation system for an explosion-proof cabinet comprising a frequency converter (4) and a cabinet body plate (5), characterized in that, It also includes heat dissipation coil (1), heat-conducting base plate (2) and explosion-proof heat dissipation fan (3), the heat dissipation coil (1) is fixedly connected with heat-conducting base plate (2), the heat-conducting base plate (2) is away from the one end of heat dissipation coil (1) and is in abutment with frequency converter (4), the heat dissipation coil (1) and heat-conducting base plate (2) are all located in explosion-proof cabinet;Both ends of the heat dissipation coil (1) are fixedly connected in the cabinet plate (5), one end of the heat dissipation coil (1) is air inlet (11), the other end of the heat dissipation coil (1) is air outlet (12), the tube cavity of the heat dissipation coil (1) is all communicated with external environment;The explosion-proof heat dissipation fan (3) is fixedly connected at the air outlet (12) outside the cabinet plate (5).

2. A heat dissipation system for an explosion-proof cabinet according to claim 1, wherein The heat dissipation coil (1) is U-shaped coil, the heat dissipation coil (1) is parallel to heat-conducting base plate (2), the heat dissipation coil (1) is connected with heat-conducting base plate (2) by spot welding;The heat-conducting base plate (2) is vertically arranged, the one end of the heat-conducting base plate (2) away from the heat dissipation coil (1) is in abutment with the bottom plate of frequency converter (4).

3. A heat dissipation system for an explosion-proof cabinet according to claim 2, wherein The air inlet (11) is located below the air outlet (12).

4. The heat dissipation system for an explosion-proof cabinet of claim 1, wherein, Both ends of the heat dissipation coil (1) are fixedly connected with pipe joint (13), the pipe joint (13) is screwed with the cabinet plate (5).

5. The heat dissipation system for an explosion-proof cabinet of claim 1, wherein, The explosion-proof heat dissipation fan (3) and the cabinet plate (5) are fixedly connected with fixed base (6), the fixed base (6) is provided with connecting hole (61), the connecting hole (61) is communicated with air outlet (12).

6. A heat dissipation system for an explosion-proof cabinet according to claim 5, wherein The explosion-proof heat dissipation fan (3) and the fixed base (6) are provided with sealing rubber layer (7), the sealing rubber layer (7) is used for the sealed connection of explosion-proof heat dissipation fan (3) and fixed base (6).

7. The heat dissipation system for an explosion-proof cabinet of claim 1, wherein, The cabinet plate (5) is provided with explosion-proof joint (8), the power line of explosion-proof heat dissipation fan (3) is inserted into explosion-proof cabinet through explosion-proof joint (8).

8. The explosion-proof cabinet heat dissipation system of claim 1, wherein, The air inlet (11) outside the cabinet plate (5) is provided with protective cover (9).

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