CN110062563B - High-efficient heat dissipation switch board - Google Patents

High-efficient heat dissipation switch board Download PDF

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Publication number
CN110062563B
CN110062563B CN201910310365.7A CN201910310365A CN110062563B CN 110062563 B CN110062563 B CN 110062563B CN 201910310365 A CN201910310365 A CN 201910310365A CN 110062563 B CN110062563 B CN 110062563B
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heat
heat dissipation
phase
plates
change
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CN110062563A (en
Inventor
李学标
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Ningbo Klite Electric Manufacture Co Ltd
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Ningbo Klite Electric Manufacture Co Ltd
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/20136—Forced ventilation, e.g. by fans
    • H05K7/20172—Fan mounting or fan specifications
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
    • H05K7/20327—Accessories for moving fluid, for connecting fluid conduits, for distributing fluid or for preventing leakage, e.g. pumps, tanks or manifolds
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
    • H05K7/20409—Outer radiating structures on heat dissipating housings, e.g. fins integrated with the housing

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The invention relates to a high-efficiency heat dissipation control cabinet, which comprises: the cabinet body is provided with at least one directional heat dissipation device; the directional heat sink includes: the high-heating-value part mounting plates are connected with two side plates of the cabinet body in a one-to-one correspondence manner at two ends, two heat conducting plates, two sealing plates, an air suction fan and an exhaust fan; two side ends of one sealing plate are correspondingly connected with one side ends of the two heat conducting plates one by one; two side ends of the other sealing plate are correspondingly connected with the other side ends of the two heat conducting plates one by one; the outer ends of the two heat conducting plates are correspondingly connected with the opposite ends of the two high-calorific-value part mounting plates one by one; the air suction fan is arranged at one ventilation hole and is connected with one side plate; the exhaust fan is arranged at the other vent hole and connected with the other side plate. High-efficient heat dissipation switch board, the radiating effect does not influence the normal work of low heat energy region spare part better, the less improvement cabinet body intensity of ventilation hole size.

Description

High-efficient heat dissipation switch board
Technical Field
The invention relates to the field of electric heat dissipation, in particular to a high-efficiency heat dissipation control cabinet.
Background
The control cabinet of the electric device can generate heat when in use; in order to ensure the normal use and safety of the control cabinet, the control cabinet needs to dissipate heat and cool; in the common control cabinet for heat dissipation, a powerful air suction fan and a powerful air exhaust fan are respectively arranged on two sides of a cabinet, air convection is generated in the cabinet for heat dissipation, and in order to enhance the heat dissipation effect, the sizes of air vents for installing the powerful air suction fan and the powerful air exhaust fan with higher power are larger; because the internal space of the control cabinet body is large, the high heat accumulation area provided with high heating value parts and the low heat accumulation area provided with low heating value parts are communicated with each other in space, and convection air can generate turbulence in the cabinet body to bring the heat of the high heat accumulation area to the low heat accumulation area; traditional switch board exists the relatively poor regional spare part of low heat energy of influence of radiating effect and normally works, and the great not enough that reduces cabinet body intensity of ventilation hole size, consequently, designs the better regional spare part of low heat energy that does not influence of a radiating effect and normally works, and the less high-efficient heat dissipation switch board that improves cabinet body intensity of ventilation hole size becomes the problem that awaits a urgent need to solve.
Disclosure of Invention
The invention aims to overcome the defects that the conventional control cabinet has poor heat dissipation effect and influences the normal work of parts in a low heat energy area, and the size of a vent hole is large so as to reduce the strength of the cabinet body, and provides the efficient heat dissipation control cabinet which has good heat dissipation effect, does not influence the normal work of the parts in the low heat energy area, has small size of the vent hole and improves the strength of the cabinet body.
The specific technical scheme of the invention is as follows:
an efficient heat dissipation control cabinet, comprising: the cabinet body is provided with at least one directional heat dissipation device; the directional heat sink includes: the high-heat-productivity part mounting plates are arranged in parallel, and the two ends of the high-heat-productivity part mounting plates are connected with the two side plates of the cabinet body in a one-to-one correspondence mode; two side ends of one sealing plate are correspondingly connected with one side ends of the two heat conducting plates one by one; two side ends of the other sealing plate are correspondingly connected with the other side ends of the two heat conducting plates one by one; the outer ends of the two heat conducting plates are correspondingly connected with the opposite ends of the two high-calorific-value part mounting plates one by one; a wind tunnel is formed between the two heat conducting plates and the two closing plates; the side plate is provided with a vent hole opposite to the wind tunnel; the air suction fan is arranged at one ventilation hole and is connected with one side plate; the exhaust fan is arranged at the other vent hole and connected with the other side plate. The material with high heat conductivity coefficient is aluminum material or copper material. When the high-efficiency heat dissipation control cabinet is used, the high-calorific-value parts are intensively mounted on the high-calorific-value part mounting plate of the directional heat dissipation device; the heat generated by the high-calorific-value parts is quickly conducted to the heat-conducting plate made of the high-thermal-conductivity-coefficient material from the high-calorific-value part mounting plate, and under the action of the suction fan and the exhaust fan, the heat-conducting plate is cooled by air flowing quickly in the wind tunnel, so that the heat is guided out of the control cabinet directionally; high-efficient heat dissipation switch board, the radiating effect does not influence the normal work of low heat energy region spare part better, the less improvement cabinet body intensity of ventilation hole size.
Preferably, the inner end of the heat conducting plate is provided with a heat radiating rack group; the heat dissipation rack group is composed of a plurality of heat dissipation racks which are arranged in parallel and the length direction of the heat dissipation racks is the same as the wind tunnel direction. The heat dissipation and heat exchange area is increased to accelerate cooling.
Preferably, the cross section of the heat dissipation rack is in an isosceles trapezoid or a triangle. The radiating effect is good and the preparation is convenient.
Preferably, the directional heat dissipation device also comprises two phase change heat dissipation components which correspond to the two heat conduction plates one by one; the phase-change radiating assembly comprises a plurality of phase-change radiating pipes and two communicating pipes, wherein the phase-change radiating pipes are parallelly and vertically arranged in the heat conducting plate in a penetrating way, and two ends of each phase-change radiating pipe are respectively provided with a bending section; one bending section of the phase-change radiating pipe is positioned outside one end of the heat conducting plate and is respectively connected with a communicating pipe; the other bending section of the phase-change radiating pipe is positioned on the outer side of the other end of the heat conducting plate and is respectively connected with the other communicating pipe; the inner hole of the phase-change radiating pipe, the inner hole of the bending section and the inner hole of the communicating pipe form a vacuum closed cavity; phase change working medium is filled in the vacuum closed cavity; and the inner hole of the phase-change radiating pipe and the inner hole side wall of the bending section are provided with phase-change stabilizing layers formed by sintering oxygen-free copper powder at high temperature. The heat generated by the high-calorific-value part is quickly conducted from the high-calorific-value part mounting plate to a heat conducting plate made of a high-thermal-conductivity-coefficient material, so that the liquid phase-change working medium in the vacuum closed cavity of the phase-change heat dissipation assembly is heated to reach a boiling point and evaporated into a vapor state, enters the inner hole of the bending section and the inner hole of the communicating pipe, is cooled by air flowing in the wind tunnel quickly, so that the vapor phase-change working medium in the inner hole of the communicating pipe and the inner hole of the bending section is cooled to be below the boiling point and solidified into a liquid state, moves under the adsorption action of capillary holes of the phase-change stabilizing layer to enter the phase-change heat dissipation. The phase change heat dissipation assembly further improves the effect and efficiency of directional heat dissipation.
Preferably, the volume of the phase-change working medium filled in the vacuum closed cavity in the liquid phase is one half to three quarters of the volume of the vacuum closed cavity. The phase change of the phase change working medium is smooth and easy, and the heat dissipation effect is good.
Preferably, the phase-change working medium is formed by mixing purified water, hydroxyethyl cellulose and an antioxidant; the mass ratio of the purified water, the hydroxyethyl cellulose and the antioxidant is 100:0.8-1: 0.6-1. The hydroxyethyl cellulose can improve the activity of the phase change working medium, and the antioxidant can prevent the corrosion of the vacuum closed cavity wall and the vacuum closed cavity wall; the mass ratio of the purified water, the hydroxyethyl cellulose and the antioxidant is 100:0.8-1:0.6-1, and the surfactant and the consistency are taken into consideration.
Compared with the prior art, the invention has the beneficial effects that: high-efficient heat dissipation switch board, the radiating effect does not influence the normal work of low heat energy region spare part better, the less improvement cabinet body intensity of ventilation hole size. The heat dissipation rack group is composed of a plurality of heat dissipation racks which are arranged in parallel and the length direction of which is the same as the wind tunnel direction, so that the heat dissipation heat exchange area is increased, and the cooling is accelerated. The cross section of the heat dissipation rack is in an isosceles trapezoid or a triangle, so that the heat dissipation rack is good in heat dissipation effect and convenient to manufacture. The phase change heat dissipation assembly further improves the effect and efficiency of directional heat dissipation. The volume of the phase-change working medium filled in the vacuum closed cavity in the liquid phase is one half to three quarters of the volume of the vacuum closed cavity, the phase change of the phase-change working medium is smooth, and the heat dissipation effect is good. The hydroxyethyl cellulose in the phase-change working medium can improve the activity of the phase-change working medium, and the antioxidant can prevent the vacuum closed cavity wall and the vacuum closed cavity wall from being corroded; the mass ratio of the purified water, the hydroxyethyl cellulose and the antioxidant is 100:0.8-1:0.6-1, and the surfactant and the consistency are taken into consideration.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is a schematic structural view of embodiment 2 of the present invention;
FIG. 3 is a view A-A of FIG. 1;
fig. 4 is a view B-B of fig. 2.
In the figure: the heat dissipation cabinet comprises a cabinet body 1, side plates 2, a high-calorific-value part mounting plate 3, a heat conduction plate 4, a sealing plate 5, an air suction fan 6, an exhaust fan 7, an air tunnel 8, a heat dissipation rack 9, a bending section 10, a phase-change heat dissipation pipe 11, a communication pipe 12, a vacuum closed cavity 13, a phase-change working medium 14 and a phase-change stabilizing layer 15.
Detailed Description
The invention will be further described with reference to the drawings.
Example 1, as shown in figures 1 and 2: an efficient heat dissipation control cabinet, comprising: the cabinet body 1, two directional heat dissipating double-fuselage that locate in the cabinet body 1 vertically; the directional heat sink includes: the high-heating-value part mounting plates 3 are arranged in parallel and are in one-to-one corresponding threaded connection with the two side plates 2 of the cabinet body 1 at two ends, the two heat-conducting plates 4 are made of high-heat-conductivity-coefficient materials, the two sealing plates 5, the air suction fan 6 and the exhaust fan 7; two side ends of one sealing plate 5 are in one-to-one corresponding threaded connection with one side ends of the two heat conducting plates 4; two side ends of the other sealing plate 5 are correspondingly screwed with the other side ends of the two heat conducting plates 4 one by one; the outer ends of the two heat conducting plates 4 are in one-to-one corresponding threaded connection with the opposite ends of the two high-calorific-value part mounting plates 3; an air tunnel 8 is formed between the two heat conducting plates 4 and the two seal plates 5; the side plate 2 is provided with a vent hole 9 opposite to the wind tunnel 8; the air suction fan 6 is arranged at the air vent 9 of one side plate 2 and is in threaded connection with one side plate 2; the exhaust fan 7 is arranged at the vent hole 9 of the other side plate 2 and is screwed with the other side plate 2. The wind tunnel 8 material with high thermal conductivity coefficient is aluminum material.
The inner end of the heat conducting plate 4 is provided with a heat radiating rack group; the heat dissipation rack group is composed of a plurality of heat dissipation racks 9 which are arranged in parallel and the length direction of which is the same as the direction of the wind tunnel 8. The heat dissipation rack 9 is integrally connected with the heat conduction plate 4.
The cross section of the heat dissipation rack 9 is in an isosceles trapezoid shape.
When the high-efficiency heat dissipation control cabinet is used, high-calorific-value parts are intensively mounted on a high-calorific-value part mounting plate 3 of the directional heat dissipation device; the heat generated by the high-calorific-value parts is quickly conducted to the heat-conducting plate 4 made of the high-thermal-conductivity-coefficient material from the high-calorific-value part mounting plate 3, and under the action of the air suction fan 6 and the air exhaust fan 7, the heat-conducting plate 4 is cooled by the air flowing quickly in the wind tunnel 8, so that the heat is guided out of the control cabinet directionally.
Example 2, as shown in figures 3 and 4: an efficient heat dissipation control cabinet, comprising: the cabinet body 1 is provided with two directional heat dissipation devices arranged in the cabinet body 1; the directional heat sink includes: the high-heating-value part mounting plates 3 are arranged in parallel and are in one-to-one corresponding threaded connection with the two side plates 2 of the cabinet body 1 at two ends, the two heat-conducting plates 4 are made of high-heat-conductivity-coefficient materials, the two sealing plates 5, the air suction fan 6 and the exhaust fan 7; two side ends of one sealing plate 5 are in one-to-one corresponding threaded connection with one side ends of the two heat conducting plates 4; two side ends of the other sealing plate 5 are correspondingly screwed with the other side ends of the two heat conducting plates 4 one by one; an air tunnel 8 is formed between the two heat conducting plates 4 and the two seal plates 5; the outer ends of the two heat conducting plates 4 are in one-to-one corresponding threaded connection with the opposite ends of the two high-calorific-value part mounting plates 3; the air suction fan 6 is arranged at one end of the wind tunnel 8 and is in threaded connection with one side plate 2; the exhaust fan 7 is arranged at the other end of the wind tunnel 8 and is in threaded connection with the other side plate 2. The wind tunnel 8 material with high thermal conductivity coefficient is aluminum material.
The inner end of the heat conducting plate 4 is provided with a heat radiating rack group; the heat dissipation rack group is composed of a plurality of heat dissipation racks 9 which are arranged in parallel and the length direction of which is the same as the direction of the wind tunnel 8. The heat dissipation rack 9 is integrally connected with the heat conduction plate 4.
The cross section of the heat dissipation rack 9 is in an isosceles trapezoid shape.
The directional heat dissipation device also comprises two phase change heat dissipation components which are in one-to-one correspondence with the two heat conduction plates 4; the phase-change radiating assembly comprises three phase-change radiating pipes 11 and two communicating pipes 12, wherein the three phase-change radiating pipes are parallelly and vertically arranged in the heat conducting plate 4, and two ends of each phase-change radiating pipe are respectively provided with a bending section 10; a bending section 10 of the phase-change radiating pipe 11 is positioned at the outer side of one end of the heat conducting plate 4 and is respectively connected with a communicating pipe 12; the other bending section 10 of the phase-change radiating pipe 11 is positioned at the outer side of the other end of the heat conducting plate 4 and is respectively connected with the other communicating pipe 12; the inner hole of the phase-change radiating pipe 11, the inner hole of the bending section 10 and the inner hole of the communicating pipe 12 form a vacuum closed cavity 13; a phase change working medium 14 is filled in the vacuum closed cavity 13; and the phase-change stabilizing layer 15 formed by sintering oxygen-free copper powder at high temperature is arranged on the side walls of the inner hole of the phase-change radiating pipe 11 and the inner hole of the bending section 10.
The volume of the phase change working medium 14 filled in the vacuum closed cavity 13 in the liquid phase state is five eighths of the volume of the vacuum closed cavity 13.
The phase change working medium 14 is formed by mixing purified water, hydroxyethyl cellulose and an antioxidant; the mass ratio of the purified water to the hydroxyethyl cellulose to the antioxidant is 100: 0.9: 0.8.
When the high-efficiency heat dissipation control cabinet is used, high-calorific-value parts are intensively mounted on a high-calorific-value part mounting plate 3 of the directional heat dissipation device; the heat generated by the high-calorific-value parts is quickly conducted to the heat-conducting plate 4 made of a high-thermal-conductivity-coefficient material from the high-calorific-value part mounting plate 3, and under the action of the air suction fan 6 and the exhaust fan 7, the heat-conducting plate 4 is cooled by the air flowing quickly in the wind tunnel 8, so that the heat is guided out of the control cabinet directionally; meanwhile, heat generated by the high-calorific-value part is quickly conducted from the high-calorific-value part mounting plate 3 to the heat conduction plate 4 made of the high-thermal-conductivity-coefficient material, so that the liquid phase-change working medium 14 in the vacuum closed cavity 13 of the phase-change heat dissipation assembly is heated to reach a boiling point and is evaporated into a vapor state, the vapor state phase-change working medium 14 in the inner hole of the communication pipe 12 and the inner hole of the bending section 10 and the inner hole of the communication pipe 12 enter the inner hole of the bending section 10 and the inner hole of the communication pipe 12, and is cooled by air flowing in the air tunnel 8 quickly, so that the vapor state phase-change working medium 14 in the inner hole of the communication pipe 12 and the inner hole of the bending section 10 is cooled.
In addition to the above embodiments, the technical features or technical data of the present invention may be reselected and combined to form new embodiments within the scope of the claims and the specification of the present invention, which are all realized by those skilled in the art without creative efforts, and thus, the embodiments of the present invention not described in detail should be regarded as specific embodiments of the present invention and are within the protection scope of the present invention.

Claims (6)

1. An efficient heat dissipation control cabinet, comprising: the cabinet body, characterized by, high-efficient heat dissipation switch board still include: at least one directional heat dissipation device arranged in the cabinet body; the directional heat sink includes: the high-heat-productivity cooling cabinet comprises two high-heat-productivity part mounting plates which are arranged in parallel and are connected with two side plates of the cabinet body in a one-to-one correspondence mode, two heat-conducting plates made of high-heat-conductivity-coefficient materials, two sealing plates, an air suction fan, an exhaust fan and two phase-change heat-dissipation assemblies which are in one-to-one correspondence with the two heat-conducting plates; the phase-change radiating assembly comprises a plurality of phase-change radiating pipes and two communicating pipes, wherein the phase-change radiating pipes are parallelly and vertically arranged in the heat conducting plate in a penetrating way, and two ends of each phase-change radiating pipe are respectively provided with a bending section; one bending section of the phase-change radiating pipe is positioned outside one end of the heat conducting plate and is respectively connected with a communicating pipe; the other bending section of the phase-change radiating pipe is positioned on the outer side of the other end of the heat conducting plate and is respectively connected with the other communicating pipe; two side ends of one sealing plate are correspondingly connected with one side ends of the two heat conducting plates one by one; two side ends of the other sealing plate are correspondingly connected with the other side ends of the two heat conducting plates one by one; the outer ends of the two heat conducting plates are correspondingly connected with the opposite ends of the two high-calorific-value part mounting plates one by one; a wind tunnel is formed between the two heat conducting plates and the two closing plates; the side plate is provided with a vent hole opposite to the wind tunnel; the air suction fan is arranged at one ventilation hole and is connected with one side plate; the exhaust fan is arranged at the other vent hole and is connected with the other side plate; when the high-efficiency heat dissipation control cabinet is used, high-calorific-value parts are intensively mounted on a high-calorific-value part mounting plate of the directional heat dissipation device.
2. The cabinet according to claim 1, wherein the heat-conducting plate has a set of heat-dissipating rack bars at the inner end; the heat dissipation rack group is composed of a plurality of heat dissipation racks which are arranged in parallel and the length direction of the heat dissipation racks is the same as the wind tunnel direction.
3. An efficient heat dissipation control cabinet as recited in claim 2, wherein the cross-sectional shape of said heat dissipation rack is isosceles trapezoid or triangle.
4. The high-efficiency heat dissipation control cabinet according to claim 1, 2 or 3, wherein the inner hole of the phase-change heat dissipation pipe, the inner hole of the bent section and the inner hole of the communication pipe form a vacuum closed cavity; phase change working medium is filled in the vacuum closed cavity; and the inner hole of the phase-change radiating pipe and the inner hole side wall of the bending section are provided with phase-change stabilizing layers formed by sintering oxygen-free copper powder at high temperature.
5. The cabinet according to claim 4, wherein the volume of the phase change working medium contained in the vacuum chamber is one half to three quarters of the volume of the vacuum chamber.
6. The cabinet according to claim 4, wherein the phase change medium is made of pure water, hydroxyethyl cellulose and antioxidant; the mass ratio of the purified water, the hydroxyethyl cellulose and the antioxidant is 100:0.8-1: 0.6-1.
CN201910310365.7A 2019-04-17 2019-04-17 High-efficient heat dissipation switch board Active CN110062563B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201910310365.7A CN110062563B (en) 2019-04-17 2019-04-17 High-efficient heat dissipation switch board

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CN110062563A CN110062563A (en) 2019-07-26
CN110062563B true CN110062563B (en) 2020-09-04

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002319785A (en) * 2001-04-23 2002-10-31 Nitto Electric Works Ltd Heat exchanger of board
CN201418225Y (en) * 2009-04-13 2010-03-03 余新洛 External circulation type sealing heat dissipating cabinet
CN203596676U (en) * 2013-11-21 2014-05-14 於贻鹏 Phase transition heat radiation stator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002319785A (en) * 2001-04-23 2002-10-31 Nitto Electric Works Ltd Heat exchanger of board
CN201418225Y (en) * 2009-04-13 2010-03-03 余新洛 External circulation type sealing heat dissipating cabinet
CN203596676U (en) * 2013-11-21 2014-05-14 於贻鹏 Phase transition heat radiation stator

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