CN115332976B - Shell with efficient heat dissipation structure for electrical equipment - Google Patents

Shell with efficient heat dissipation structure for electrical equipment Download PDF

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Publication number
CN115332976B
CN115332976B CN202211248825.6A CN202211248825A CN115332976B CN 115332976 B CN115332976 B CN 115332976B CN 202211248825 A CN202211248825 A CN 202211248825A CN 115332976 B CN115332976 B CN 115332976B
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China
Prior art keywords
heat dissipation
fixedly connected
main box
box body
heat
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CN202211248825.6A
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Chinese (zh)
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CN115332976A (en
Inventor
范瑞敏
王广武
姜永宝
卢双婷
崔恺
李士东
姚桂玲
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Nanjing Luner Technology Co ltd
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Nanjing Luner Technology Co ltd
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Priority to CN202211248825.6A priority Critical patent/CN115332976B/en
Publication of CN115332976A publication Critical patent/CN115332976A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56—Cooling; Ventilation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/46—Boxes; Parts thereof or accessories therefor
    • 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
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0213—Venting apertures; Constructional details thereof
    • 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
    • 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
    • H05K7/20145—Means for directing air flow, e.g. ducts, deflectors, plenum or guides
    • 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
    • H05K7/20209—Thermal management, e.g. fan control
    • 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
    • H05K7/20336—Heat pipes, e.g. wicks or capillary pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

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

Abstract

The invention relates to the technical field of electrical equipment and discloses a shell with an efficient heat dissipation structure for the electrical equipment, which comprises a main box body, wherein the main box body comprises a mounting cavity, a heat dissipation cavity and a ventilation cavity, one side of the back surface of the inside of the main box body is fixedly connected with an inner partition plate and an inner back plate, the outside of the inner back plate is fixedly connected with a transverse plate, the inner back plate is provided with a penetrating narrow groove, the heat dissipation cavity is formed between the inner back plate and the inner partition plate, the inside of the heat dissipation cavity is fixedly connected with a positioning block, and the inside of the positioning block is fixedly connected with a heat pipe. Through the heat pipe heat dissipation, then in the heat dissipation in-process main tank body wholly is in sealing state, and then effectively the inside of isolated dust entering main tank body to not only guarantee the heat dissipation to the inside of main tank body, effectively prevent the inside of dust entering main tank body simultaneously, and then guarantee electrical equipment's life, and electrical equipment and heat pipe are located the both sides of elongated slot respectively, and the heat that electrical equipment operation in-process produced contacts the heat pipe very first time, increases the radiating effect.

Description

Shell with efficient heat dissipation structure for electrical equipment
Technical Field
The invention relates to the technical field of electrical equipment, in particular to a shell with an efficient heat dissipation structure for electrical equipment.
Background
The electric box is the box that is used for installing electrical equipment, plays the effect of protection to electrical equipment, because electrical equipment often can produce a large amount of heat when the operation, in order to guarantee the normal operating of the inside electric component of electric box, usually need add ventilation heat abstractor, make the inside heat of electric box can dispel fast.
However, the existing electric box heat dissipation device has a simple structure and a single function, a large number of ventilation holes are often formed in two sides, the fluidity of the air inside the electric box heat dissipation device is guaranteed, the heat dissipation effect is achieved through the flow of the air inside and outside, or the air circulation effect is further improved through the addition of a heat dissipation fan, so that the heat dissipation performance is improved. However, no matter only a large number of heat dissipation holes are formed or a heat dissipation fan is added, the heat dissipation mode is a single fixed mode and cannot be flexibly adjusted according to the internal temperature of the electric box, and the two heat dissipation modes are used for heat dissipation, so that the tightness of the electric box is sacrificed, external dust can enter the electric box, and the external dust is accumulated on the surface of the electric element, so that the service life of the electric element is greatly influenced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the shell with the efficient heat dissipation structure for the electrical equipment, which has the advantages of automatically controlling multi-stage heat dissipation and effectively ensuring the heat dissipation effect.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an electrical equipment is with shell that has high-efficient heat radiation structure, includes the main tank body, the main tank body includes installation cavity, heat dissipation chamber and ventilation cavity, inside back side one side fixedly connected with inner baffle and inner backplate of main tank body, the outside fixedly connected with diaphragm of inner backplate, the elongated slot that runs through has been seted up to the inner backplate, constitute the heat dissipation chamber between inner backplate and the inner baffle, the inside fixedly connected with locating piece in heat dissipation chamber, the inside fixedly connected with heat pipe of locating piece, the one end of heat pipe is located the inside of main tank body, and the other end extends to the outside of main tank body, constitute ventilation cavity between main tank body and the inner baffle, the inner backplate leans on diaphragm one side to set up to the installation cavity, the outside fixedly connected with radiator fan of main tank body, constitutes ventilation cavity intercommunication between air inlet and main tank body and the inner baffle of radiator fan, the bottom grafting of main tank body has the filter block, the filter block is used for connecting ventilation cavity and installation cavity, the top fixedly connected with air outlet's top baffle, top baffle fixedly connected with at the top of main tank body, the inside fixedly connected with temperature sensing mechanism of main tank body.
Preferably, the heat pipes are at least five and are uniformly arranged in the heat dissipation cavity, the heat dissipation cavity is communicated with the mounting cavity through the narrow groove, the inside of the heat pipe is provided with volatile liquid with low boiling point, and the air pressure inside the heat pipe is 1.3 x (10 -1 ～10 -4 ) Pa. The volatile liquid in the heat pipe evaporates and absorbs heat in the main box body, and the heat is liquefied and released at one end of the outer part of the main box body, so that the effect of transmitting the heat in the main box body to the outer part of the main box body is achieved, and the heat dissipation effect is achieved.
Preferably, the filter block is provided with at least three layers of dust filtering nets, and detachable movable plug-in connection is arranged between the filter block and the main box body. Through the filtration of three-layer dust filter net to the entering air, avoid the dust to get into the inside of main tank, reach dirt-proof effect, and be detachable activity grafting between filter block and the main tank, then make things convenient for the washing and the change of filter block, improve result of use.
Preferably, the air outlet comprises an air outlet groove formed in the top, a top plate is movably connected to the top of the air outlet, a sealing block is fixedly connected to the bottom of the top plate, the sealing block is adaptive to the size of the air outlet groove, a reset spring is arranged between the top plate and the air outlet, the projection area of the air outlet is smaller than that of a top baffle, and the air outlet is located right below the top baffle. The air flows unidirectionally from the air outlet, and the flowing direction is that the inside of the main box flows to the outside of the main box.
Preferably, the temperature sensing mechanism comprises a protective shell fixedly connected inside the main box body, the inside of the protective shell is fixedly connected with a bimetal spiral sheet, the other end of the bimetal spiral sheet is fixedly connected with a connecting rod, the movable end of the connecting rod is fixedly connected with a movable disc, the outside of the movable disc is movably connected with a fixed disc, the movable disc is fixedly connected with a conductive copper sheet on one side of the fixed disc, and the fixed disc is movably connected with a first electric contact block on one side of the movable disc.
Preferably, the connecting rod is a telescopic rod, the connecting rod is rotationally connected with the protective shell, the bimetal spiral sheet is heated and rotated, the bimetal spiral sheet is used for driving the movable disc to rotate through the connecting rod, and the movable disc is movably abutted with the fixed disc.
Preferably, the conductive copper sheet is arranged in a ring shape, the angle of the ring-shaped conductive copper sheet is 90-180 degrees, and the first electric contact block is electrically connected with the heat dissipation fan. When the first electric contact block contacts the conductive copper sheet, the circuit of the heat dissipation fan is closed, the heat dissipation fan enters an electrified state, the heat dissipation fan starts to work, and external air is led into the ventilation cavity.
Preferably, the back of the main box body is fixedly inserted with a semiconductor refrigerating sheet, the inner side surface of the semiconductor refrigerating sheet is fixedly connected with a heat conducting sheet, the heat conducting sheet is inserted into the ventilation cavity, the heat conducting sheet is positioned between the heat radiating fan and the filter block, and the heat conducting sheet is fixedly connected with one side of the semiconductor refrigerating sheet, which is used for refrigerating. When the semiconductor refrigerating sheet works, gas passes through the heat conducting sheet, and the heat conducting sheet cools the passing gas flow.
Preferably, the fixed disc is located one side of the movable disc and is movably connected with a second electric contact block, and the second electric contact block is electrically connected with the semiconductor refrigerating sheet. When the second electric contact block contacts the conductive copper sheet, the semiconductor refrigeration sheet enters a circuit on state, and the semiconductor refrigeration sheet starts to work.
The beneficial effects are that: 1. this electrical equipment is with shell that has high-efficient heat radiation structure, through the inside volatile liquid evaporation absorption heat of heat pipe in the main tank body, liquefies in the outside one end of main tank body and gives off heat, reaches the effect of the outside of main tank body with the inside heat transmission of main tank body, reaches radiating effect. The whole main box body is in a sealing state in the heat dissipation process, so that dust is effectively isolated from entering the main box body, heat dissipation inside the main box body is guaranteed, dust is effectively prevented from entering the main box body, the service life of the electrical equipment is further guaranteed, the electrical equipment and the heat pipes are respectively located on two sides of the narrow groove, heat generated in the operation process of the electrical equipment is in contact with the heat pipes at the first time, and the heat dissipation effect is improved.
2. The electric equipment is provided with a shell with a high-efficiency heat dissipation structure, the heat dissipation fan is controlled to start working through the temperature sensing mechanism, and external air is led into the ventilation cavity. The ventilation air passes through the filter block and gets into the installation cavity of main tank body, simultaneously flows out through the air outlet at main tank body top, and then reaches the air and gets into from the bottom of main tank body, flows out from the top of main tank body, because the density of cold air is greater than the density of hot air, then the cold air that gets into the main tank body promotes hot air gradually from bottom to top and flows out from the air outlet to guarantee that the flow direction of air is thereby the bottom of main tank body to the top of main tank body, and flows out from the air outlet, effectively guarantees the radiating effect to the installation cavity of main tank body. The heat pipe is intelligently controlled by the temperature sensing mechanism to radiate or the radiating fan is synchronously started to radiate in an auxiliary mode, and the effect of multiple radiating is achieved.
3. This electrical equipment is with shell that has high-efficient heat radiation structure, begins work through temperature sensing mechanism control semiconductor refrigeration piece, and conductor refrigeration piece begins to refrigerate to transversely put in the inside of ventilation chamber through the conducting strip, the conducting strip cools off through the air current, makes the initial temperature of the air that gets into the installation chamber be in low temperature state, cools off the installation chamber of main tank body through cold air, thereby further guarantee the radiating effect.
4. The shell with the efficient heat dissipation structure for the electrical equipment achieves the effect of automatically adjusting heat dissipation through the heat pipe, the heat dissipation fan, the semiconductor refrigerating sheet and the temperature sensing mechanism, improves the heat dissipation efficiency and the automatic control performance, and achieves the effects of reducing the electric energy loss and saving energy.
Drawings
FIG. 1 is a schematic view of the overall appearance of the structure of the present invention.
FIG. 2 is a schematic view of a main casing of the structure of the present invention in a partially cut-away state.
FIG. 3 is a schematic view of the connection of the heat pipe to the structural positioning block of the present invention.
FIG. 4 is a schematic side cross-sectional view of the main housing of the structure of the present invention.
FIG. 5 is a schematic diagram showing the cross-sectional state of the air outlet of the structure of the present invention.
FIG. 6 is a schematic diagram of a temperature sensing mechanism according to the present invention.
FIG. 7 is a schematic view of a movable plate and a conductive copper sheet of the structure of the present invention.
Fig. 8 is a schematic diagram showing connection between the fixing plate and the first and second electric contact blocks.
Fig. 9 is a schematic view of a semiconductor refrigeration sheet and a heat conduction sheet of the structure of the present invention.
In the figure: 1. a main case; 2. an inner partition; 3. an inner back plate; 31. an elongated slot; 4. a cross plate; 5. a positioning block; 6. a heat pipe; 7. a heat dissipation fan; 8. a filter block; 9. an air outlet; 91. an air outlet groove; 92. a top plate; 93. a sealing block; 94. a return spring; 10. a top baffle; 11. a semiconductor refrigeration sheet; 12. a heat conductive sheet; 13. a temperature sensing mechanism; 131. a protective shell; 132. bimetallic screw sheets; 133. a connecting rod; 134. a movable plate; 1341. a conductive copper sheet; 135. a fixed plate; 1351. a first electrical contact; 1352. and a second electrical contact.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the first embodiment of the invention: referring to fig. 1-3, an electrical device is with shell with high-efficient heat dissipation structure, including main box 1, main box 1 includes installation cavity, heat dissipation cavity and ventilation cavity, inside back side one side fixedly connected with inner baffle 2 and interior backplate 3 of main box 1, the outside fixedly connected with diaphragm 4 of interior backplate 3, the elongated slot 31 that runs through has been seted up to interior backplate 3, constitute the heat dissipation cavity between interior backplate 3 and the interior baffle 2, the inside fixedly connected with locating piece 5 of heat dissipation cavity, the inside fixedly connected with heat pipe 6 of locating piece 5, the one end of heat pipe 6 is located the inside of main box 1, the other end extends to the outside of main box 1, interior backplate 3 is close to diaphragm 4 one side and is set up to install the chamber, electrical device passes through diaphragm 4 and interior backplate 3 and installs in main box 1, electrical device is in the installation cavity. The electric equipment and the heat pipe 6 are respectively positioned at two sides of the narrow groove 31, so that the heat dissipation effect of the main box body 1 is effectively ensured when the heat is dissipated through the heat pipe 6.
Wherein, the heat pipes 6 are at least provided with five heat pipes which are uniformly arranged in the heat dissipation cavity, the heat dissipation cavity is communicated with the installation cavity through the narrow groove 31, the inside of the heat pipe 6 is provided with volatile liquid with low boiling point, and the internal air pressure of the heat pipe 6 is 1.3 x (10 -1 ～10 -4 ) Pa. The volatile liquid in the heat pipe 6 evaporates and absorbs heat in the main box 1, and liquefies and gives off heat at one end of the outside of the main box 1, so that the effect of transmitting the heat in the main box 1 to the outside of the main box 1 is achieved, and the heat dissipation effect is achieved.
The heat pipe 6 is used for radiating, the whole main box body 1 is in a sealing state in the radiating process, dust is effectively isolated from entering the main box body 1, so that the heat radiation of the inside of the main box body 1 is guaranteed, dust is effectively prevented from entering the inside of the main box body 1, the service life of electrical equipment is further guaranteed, the electrical equipment and the heat pipe 6 are respectively located on two sides of the elongated groove 31, heat generated in the operation process of the electrical equipment is firstly in contact with the heat pipe 6, fins are arranged on the heated end and the radiating end of the heat pipe 6, and the heat absorption and radiating effect of the heat is improved.
In the second embodiment of the invention: referring to fig. 1-8, further, on the basis of the first embodiment, a heat dissipation fan 7 is fixedly connected to the outside of the main box 1, an air inlet of the heat dissipation fan 7 is communicated with an air ventilation cavity formed between the main box 1 and the inner partition plate 2, a filter block 8 is inserted into the bottom of the main box 1, the filter block 8 is used for connecting the air ventilation cavity and the installation cavity, an air outlet 9 is fixedly connected to the top of the main box 1, a top baffle 10 is arranged at the top of the air outlet 9, the top baffle 10 is fixedly connected to the top of the main box 1, a temperature sensing mechanism 13 is fixedly connected to the inside of the main box 1, and the air ventilation cavity is formed between the main box 1 and the inner partition plate 2.
Wherein, the filter block 8 is provided with at least three layers of dust filtering nets, and the filter block 8 and the main box body 1 are detachably and movably inserted. Through the filtration of three-layer dust filter net to the entering air, avoid the dust to get into the inside of main tank 1, reach dirt-proof effect, and be detachable movable grafting between filter block 8 and the main tank 1, then make things convenient for the washing and the change of filter block 8, improve the result of use.
The air outlet 9 includes the air outlet groove 91 that the top was seted up, and the top swing joint of air outlet 9 has roof 92, and the bottom fixedly connected with sealing block 93 of roof 92, sealing block 93's size and air outlet groove 91 size adaptation are provided with reset spring 94 between roof 92 and the air outlet 9, and the projected area of air outlet 9 is less than the projected area of top baffle 10, and air outlet 9 is located under the top baffle 10. The air flows unidirectionally from the air outlet 9 in the direction of the inside of the main casing 1 to the outside of the main casing 1. During non-air circulation, the air outlet groove 91 of the air outlet 9 is in a sealed state to prevent dust from entering, and in an air flow state, air flow flowing outwards from inside is always present, so that dust is further prevented from flowing into the main box 1, and the dust prevention effect is ensured.
The temperature sensing mechanism 13 comprises a protective shell 131 fixedly connected inside the main box body 1, a bimetal spiral sheet 132 is fixedly connected inside the protective shell 131, a connecting rod 133 is fixedly connected to the other end of the bimetal spiral sheet 132, a movable end of the connecting rod 133 is fixedly connected with a movable disc 134, a fixed disc 135 is movably connected to the outside of the movable disc 134, a conductive copper sheet 1341 is fixedly connected to one side of the movable disc 134, and a first electric contact 1351 is movably connected to one side of the fixed disc 135.
The connecting rod 133 is set to the telescopic link, and connecting rod 133 and protecting crust 131 rotate to be connected, and bimetal spiral piece 132 is rotatory by being heated, and bimetal spiral piece 132 is used for driving movable dish 134 through connecting rod 133 and rotates, sets up between connecting rod 133 and the protecting crust 131 and rotates spacingly, makes the biggest rotation angle of movable dish 134 be less than 180, and under the normal atmospheric temperature state, the conductive copper piece 1341 of movable dish 134 and the first electric contact 1351 of fixed dish 135 are in non-contact state, movable dish 134 and fixed dish 135 activity butt.
When the heat dissipation effect of the first embodiment cannot meet the overall heat dissipation requirement of the device, the inside of the main box 1 is continuously raised, and then the bimetal spiral piece 132 is heated and twisted, the bimetal spiral piece 132 drives the connecting rod 133 to rotate, and the connecting rod 133 drives the movable disc 134 to rotate, so that the conductive copper sheet 1341 of the movable disc 134 contacts the first electric contact 1351.
The conductive copper sheet 1341 is arranged in a ring shape, the angle of the ring-shaped conductive copper sheet 1341 is 90-180 degrees, and the first electric contact 1351 is electrically connected with the heat dissipation fan 7. When the first electric contact 1351 contacts the conductive copper sheet 1341, the circuit of the heat dissipation fan 7 is closed, the heat dissipation fan 7 enters an energized state, the heat dissipation fan 7 starts to operate, and outside air is introduced into the inside of the ventilation chamber. Ventilation air enters the installation cavity of the main box body 1 through the filter block 8, and flows out through the air outlet 9 at the top of the main box body 1, so that air enters from the bottom of the main box body 1 and flows out from the top of the main box body 1, and because the density of cold air is greater than that of hot air, the cold air entering the main box body 1 gradually pushes the hot air to flow out from the air outlet 9 from bottom to top, so that the flowing direction of the air is ensured to be from the bottom of the main box body 1 to the top of the main box body 1, and flows out from the air outlet 9, and the heat dissipation effect of the installation cavity of the main box body 1 is effectively ensured. The heat pipe 6 is intelligently controlled to radiate or the radiating fan 7 is synchronously started to radiate in an auxiliary mode through the temperature sensing mechanism 13, the effect of multiple radiating is achieved, and the radiating efficiency and the automatic control performance are improved.
Meanwhile, the dust is prevented from entering through multiple filtration of the filter block 8, and the dustproof effect is achieved.
The third embodiment of the invention: referring to fig. 1-9, further, on the basis of the second embodiment, a semiconductor cooling fin 11 is fixedly inserted into the back of the main case 1, a heat conducting fin 12 is fixedly connected to the inner side surface of the semiconductor cooling fin 11, the heat conducting fin 12 is inserted into the ventilation cavity, the heat conducting fin 12 is located between the heat dissipation fan 7 and the filter block 8, and the heat conducting fin 12 is fixedly connected with the cooling side of the semiconductor cooling fin 11. In operation of the semiconductor cooling fin 11, the gas passes through the heat conductive fin 12, and the heat conductive fin 12 cools the passing gas flow.
The fixed disc 135 is movably connected with a second electric contact block 1352 at one side of the movable disc 134, and the second electric contact block 1352 is electrically connected with the semiconductor refrigeration piece 11.
When the heat dissipation effect of the second embodiment cannot meet the overall heat dissipation requirement of the device, the inside of the main box 1 continues to rise, so that the bimetal spiral plate 132 is further heated and twisted, and the bimetal spiral plate 132 drives the movable plate 134 to further rotate through the connecting rod 133, so that the conductive copper sheet 1341 of the movable plate 134 contacts the second electric contact block 1352. When the second electric contact 1352 contacts the conductive copper sheet 1341, the semiconductor refrigeration piece 11 enters a circuit-on state, and the semiconductor refrigeration piece 11 starts to operate. On the basis of the second embodiment, when air passes through the heat conducting fin 12, the semiconductor refrigerating fin 11 starts refrigerating, and is transversely arranged in the ventilation cavity through the heat conducting fin 12, the heat conducting fin 12 cools the air passing through the air flow, so that the initial temperature of the air entering the installation cavity is in a low-temperature state, and the installation cavity of the main box body 1 is cooled through cold air, so that the heat dissipation effect is further ensured.
And when the temperature in the main box 1 is reduced, the bimetal spiral sheet 132 is recovered, so that the movable disc 134 reversely rotates, and the conductive copper sheet 1341 is separated from contact with the first electric contact block 1351 and the second electric contact block 1352, and self-service heat dissipation is performed only through the heat pipe 6, so that the effects of reducing electric energy loss and saving energy are achieved.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides an electrical equipment is with shell that has high-efficient heat radiation structure, includes main box (1), its characterized in that: the main box body (1) comprises a mounting cavity, a heat dissipation cavity and a ventilation cavity, one side of the inner back surface of the main box body (1) is fixedly connected with an inner partition plate (2) and an inner back plate (3), one side of the inner back plate (3) is fixedly connected with a transverse plate (4), the inner back plate (3) is provided with a through long narrow groove (31), a heat dissipation cavity is formed between the inner back plate (3) and the inner partition plate (2), a positioning block (5) is fixedly connected with the inside of the heat dissipation cavity, a heat pipe (6) is fixedly connected with the inside of the positioning block (5), one end of the heat pipe (6) is positioned in the main box body (1), the other end of the heat pipe extends to the outside of the main box body (1), the main box body (1) and the inner partition plate (2) form a ventilation cavity, one side of the inner back plate (3) is provided with the mounting cavity by the transverse plate (4), the outside of the main box body (1) is fixedly connected with a fan (7), an air inlet of the main box body (1) and the inner partition plate (2) form a communication cavity, a filter block (8) at the bottom of the main box body (1) is provided with an air outlet (9), the top of the filter block (8) is connected with the air outlet (9) and the top of the filter block (9) is connected with the top of the main box body (1), the top baffle (10) is fixedly connected to the top of the main box body (1), and a temperature sensing mechanism (13) is fixedly connected to the inside of the main box body (1);
the temperature sensing mechanism (13) comprises a protective shell (131) fixedly connected inside the main box body (1), a bimetal spiral sheet (132) is fixedly connected inside the protective shell (131), the other end of the bimetal spiral sheet (132) is fixedly connected with a connecting rod (133), the movable end of the connecting rod (133) is fixedly connected with a movable disc (134), the outside of the movable disc (134) is movably connected with a fixed disc (135), the movable disc (134) is fixedly connected with a conductive copper sheet (1341) on one side of the fixed disc (135), and the fixed disc (135) is movably connected with a first electric contact block (1351) on one side of the movable disc (134);
the conductive copper sheet (1341) is arranged in a ring shape, the angle of the ring-shaped conductive copper sheet (1341) is 90-180 degrees, and the first electric contact block (1351) is electrically connected with the heat dissipation fan (7);
the fixed disc (135) is located at one side of the movable disc (134) and is movably connected with a second electric contact block (1352), the back of the main box body (1) is fixedly connected with a semiconductor refrigerating piece (11) in an inserted mode, the inner side face of the semiconductor refrigerating piece (11) is fixedly connected with a heat conducting piece (12), the heat conducting piece (12) is inserted into the ventilation cavity, the heat conducting piece (12) is located between the heat radiating fan (7) and the filter block (8), the heat conducting piece (12) is fixedly connected with the refrigerating side of the semiconductor refrigerating piece (11), and the second electric contact block (1352) is electrically connected with the semiconductor refrigerating piece (11);
the connecting rod (133) is a telescopic rod, the connecting rod (133) is rotationally connected with the protective shell (131), the bimetal spiral sheet (132) is heated to rotate, the bimetal spiral sheet (132) is used for driving the movable disc (134) to rotate through the connecting rod (133), and the movable disc (134) is movably abutted with the fixed disc (135);
when the heat dissipation fan (7) effect can not satisfy the whole heat dissipation demand of equipment, the inside temperature of main box (1) continues to rise, then bimetal spiral piece (132) is further heated and twists, bimetal spiral piece (132) drive movable disk (134) further rotate through connecting rod (133), make the conductive copper sheet (1341) of movable disk (134) contact second electric contact piece (1352), when second electric contact piece (1352) contact conductive copper sheet (1341), semiconductor refrigeration piece (11) get into circuit on state, semiconductor refrigeration piece (11) begin work.
2. The housing with efficient heat dissipation structure for electrical equipment as recited in claim 1, wherein: the heat pipes (6) are at least provided with five heat pipes which are uniformly distributed in the heat dissipation cavity, the heat dissipation cavity is communicated with the installation cavity through the narrow and long grooves (31), the inside of the heat pipes (6) is provided with volatile liquid with low boiling point, and the internal air pressure of the heat pipes (6) is 1.3 x (10) -1 ～10 -4 )Pa。
3. The housing with efficient heat dissipation structure for electrical equipment as recited in claim 1, wherein: the filter block (8) is provided with at least three layers of dust filtering nets, and the filter block (8) and the main box body (1) are detachably and movably connected in an inserting mode.
4. The housing with efficient heat dissipation structure for electrical equipment as recited in claim 1, wherein: air outlet (9) are including air outlet groove (91) that the top was seted up, and the top swing joint of air outlet (9) has roof (92), and the bottom fixedly connected with sealing block (93) of roof (92), the size of sealing block (93) and air outlet groove (91) size adaptation are provided with reset spring (94) between roof (92) and air outlet (9), the projected area of air outlet (9) is less than the projected area of top baffle (10), and air outlet (9) are located under top baffle (10).
CN202211248825.6A 2022-10-12 2022-10-12 Shell with efficient heat dissipation structure for electrical equipment Active CN115332976B (en)

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CN117767157B (en) * 2023-12-28 2024-06-04 江苏红华电气设备有限公司 Heat pipe type heat dissipation device and method for electrical equipment

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CN110048329A (en) * 2019-05-14 2019-07-23 云南电网有限责任公司电力科学研究院 A kind of radiator applied to power switch cabinet
CN210317845U (en) * 2019-08-22 2020-04-14 河南科技学院 Dustproof radiator fan of host computer
CN110912008A (en) * 2019-12-23 2020-03-24 浙江佳乐科仪股份有限公司 Dustproof and heat-proof outdoor electric cabinet
CN213152540U (en) * 2020-07-07 2021-05-07 苏州俊毅网络智能科技有限公司 Multi-bus industrial field controller mounting box
CN112068672A (en) * 2020-09-04 2020-12-11 杭州鲸炬科技有限公司 Heat dissipation device with good heat dissipation and cooling effects for computer processor

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