CN111447806A - Electric appliance box and air conditioner that radiating efficiency is high - Google Patents
Electric appliance box and air conditioner that radiating efficiency is high Download PDFInfo
- Publication number
- CN111447806A CN111447806A CN202010396127.5A CN202010396127A CN111447806A CN 111447806 A CN111447806 A CN 111447806A CN 202010396127 A CN202010396127 A CN 202010396127A CN 111447806 A CN111447806 A CN 111447806A
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- China
- Prior art keywords
- plate body
- heat dissipation
- shell
- fins
- appliance
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- H05K7/20509—Multiple-component heat spreaders; Multi-component heat-conducting support plates; Multi-component non-closed heat-conducting structures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/20—Electric components for separate outdoor units
- F24F1/24—Cooling of electric components
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- 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
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20254—Cold plates transferring heat from heat source to coolant
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention provides an electric appliance box with high heat dissipation efficiency and an air conditioner. The electrical box comprises a shell, heating components and heat dissipation mechanisms, and is arranged in the shell and comprises a plate body and fins, wherein the heating components are arranged on the plate body, and the rest heating components are arranged on the inner surface of the shell. According to the electric box and the air conditioner with high heat dissipation efficiency, the heat dissipation mechanism is arranged in the electric box, the fins are arranged on the heat dissipation mechanism, the number of the fins is reasonably set, the heat exchange efficiency of the heat dissipation mechanism is increased to the maximum extent, the heat dissipation effect of the heat dissipation mechanism on the interior of the electric box is increased, the fan or the high-emissivity coating is arranged, the heat exchange efficiency can be further increased, the internal components can be guaranteed to work in a proper temperature range, and the operation stability of equipment is improved.
Description
Technical Field
The invention relates to the technical field of heat dissipation of electronic components, in particular to an electric box and an air conditioner with high heat dissipation efficiency.
Background
With the high-speed development of power electronic technology, the heat flux density of electronic components is higher and higher, the heat productivity of electronic equipment is also higher and higher, the traditional air-cooled heat dissipation mode cannot meet the heat dissipation requirement of the electronic equipment, and many electronic equipment have strict requirements on protection level, and a fully-closed shell design must be adopted to ensure the requirements of four-prevention (insect prevention, water prevention, dust prevention and corrosion prevention), so that the heat dissipation difficulty is undoubtedly further increased. In order to solve the problems, in the prior art, a refrigerant radiator is attached to the shell of an electrical box, heat of components in the electrical box is taken away through the refrigerant radiator, and the temperature of the components attached to the shell of the electrical box is greatly reduced, but the scheme can only ensure the heat dissipation effect of the components which are smooth in appearance and attached to the shell of the electrical box, and most of electronic components such as inductors, capacitors and transformers are irregular in shape, have large heat productivity and cannot be directly contacted with the shell of the electrical box, so that heat dissipation cannot be guaranteed, and the equipment can be overheated to have an overheating fault.
Disclosure of Invention
In order to solve the technical problem of poor heat dissipation effect of an electrical box in the prior art, the electrical box and the air conditioner which are high in heat dissipation efficiency and capable of increasing the heat dissipation effect of the inner part of the electrical box by using the fins are provided.
An electrical box comprising:
a housing;
the heating component is arranged in the shell;
and the heat dissipation mechanism is arranged in the shell and comprises a plate body and fins, wherein the heating element is arranged on the plate body, and the rest part of the heating element is arranged on the inner surface of the shell.
The number of fins is obtained according to the following formula:
n＝Int[(W+S)/(t+S)]；
wherein: int is a rounding function, W is the width of the plate body, S is the spacing between adjacent fins, and t is the fin thickness.
The value range of the fin thickness t is 0.5mm to 2.5 mm.
The heat dissipation mechanism further comprises a cooling channel, the cooling channel is arranged in the plate body, and two ends of the cooling channel penetrate through the shell and are communicated with the outside of the electric appliance box.
The plate body comprises an cover plate and a base which are mutually buckled, the cooling channel is arranged between the cover plate and the base, and the fins are arranged on the cover plate.
The length of fin is less than the length of plate body, and when the plate body is vertical to be set up, the fin set up in the first half of plate body.
And one or more of the inner surface of the shell, the heating element or the heat dissipation mechanism is/are provided with a high-emissivity coating.
The electric appliance box further comprises a fan, wherein the fan is arranged inside the shell, and the air outlet direction of the fan points to the fins or the plate body.
The heating element is divided into a regular element and a special-shaped element according to the shape, the regular element is arranged on the plate body, and the special-shaped element is connected with the plate body through a heat transfer mechanism.
The plate body is provided with a first mounting surface and a second mounting surface which are adjacent to each other, the regular component is arranged on the first mounting surface, and the special-shaped component is connected with the second mounting surface through a heat transfer mechanism.
The plate body is of a cuboid structure, the top face of the cuboid structure forms the first mounting face, and the side face of the cuboid structure forms the second mounting face.
The material of the plate body comprises aluminum and the material of the cooling channel comprises copper.
The refrigerant flowing in the cooling channel comprises water or refrigerant.
An air conditioner comprises the electrical box.
According to the electric box and the air conditioner with high heat dissipation efficiency, the heat dissipation mechanism is arranged in the electric box, the fins are arranged on the heat dissipation mechanism, the number of the fins is reasonably set, the heat exchange efficiency of the heat dissipation mechanism is increased to the maximum extent, the heat dissipation effect of the heat dissipation mechanism on the interior of the electric box is increased, the fan or the high-emissivity coating is arranged, the heat exchange efficiency can be further increased, the internal components can be guaranteed to work in a proper temperature range, and the operation stability of equipment is improved.
Drawings
Fig. 1 is an exploded view of an electrical box and an electrical box of an embodiment of an air conditioner with high heat dissipation efficiency according to the present invention;
fig. 2 is a schematic structural diagram of an internal structure of an electrical box of an embodiment of an electrical box and an air conditioner with high heat dissipation efficiency according to the present invention;
FIG. 3 is a front view of the heat dissipation mechanism of the embodiment of the air conditioner and the electrical box with high heat dissipation efficiency provided by the invention;
FIG. 4 is a side view of the heat dissipation mechanism of the embodiment of the air conditioner and the electrical box with high heat dissipation efficiency provided by the invention;
fig. 5 is a bottom view of the heat dissipation mechanism of the embodiment of the electrical box and the air conditioner with high heat dissipation efficiency provided by the invention;
fig. 6 is an exploded schematic view of a heat dissipation mechanism and regular components of an embodiment of an electrical box and an air conditioner with high heat dissipation efficiency provided by the invention;
in the figure:
1. a housing; 2. a regular component; 3. a special-shaped component; 4. a heat dissipation mechanism; 41. a plate body; 42. a fin; 43. a cooling channel; 5. a fan.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The electrical box as shown in fig. 1 to 6 includes: a housing 1; heating element, set up in the casing 1, heat dissipation mechanism 4 set up in the casing 1, and including plate body 41 and fin 42, part heating element set up in on the plate body 41, the remainder heating element set up in on the internal surface of casing 1, when gaseous through fin 42, hot-air carries out the heat transfer with fin 42, finally with heat transfer to plate body 41 on, utilize fin 42 to increase heat dissipation mechanism 4 at the inside radiating efficiency of casing 1, guarantee heating element and part work in suitable temperature, guaranteed job stabilization nature and reliability.
The number of fins 42 is obtained according to the following formula:
n＝Int[(W+S)/(t+S)]；
wherein: int is an integer function, W is the width of the plate body 41, S is the distance between adjacent fins 42, and t is the thickness of the fins 42, so that the number of the fins 42 is reasonably set, and the heat dissipation effect of the heat dissipation mechanism 4 is maximally improved.
The length H and the width W of the board 41 are related to the space of the electrical box and the number of electronic components.
Examples
The length range H of the plate body 41 is more than or equal to 50mm, the value range of the thickness B is more than or equal to 6mm and less than or equal to 30mm, the range of the width W is more than or equal to 20mm, the range of the height F of the fins 42 is more than or equal to 5mm and less than or equal to 80mm, the length L of the fins 42 is less than H, the range of the thickness t of the fins 42 is more than or equal to 0.5mm and less than or equal to 2.5mm, and the range of the spacing S between the fins is more than or equal to 2.
The value range of the thickness t of the fin 42 is 0.5mm to 2.5 mm.
The heat dissipation mechanism 4 further comprises a cooling channel 43, the cooling channel 43 is arranged in the plate body 41, two ends of the cooling channel 43 penetrate through the shell 1 and are communicated with the outside of the electrical box, a low-temperature refrigerant is introduced into the cooling channel 43, and the low-temperature refrigerant is utilized to absorb heat, so that the heat dissipation efficiency of the heat dissipation mechanism 4 is ensured, the diameter D of the cooling channel 43 is smaller than the thickness B of the plate body 41, and the value range of the diameter D is not less than 4mm and not more than 16 mm.
The plate body 41 comprises an cover plate and a base which are buckled with each other, the cooling channel 43 is arranged between the cover plate and the base, and the fins 42 are arranged on the cover plate, so that the cooling channel 43 is convenient to install.
The length of fin 42 is less than the length of plate body 41, and when plate body 41 was vertical to be set up, fin 42 set up in the first half of plate body 41 utilizes hot-air come-up, and the decline of cold air is kept away from, makes the inside air of electrical apparatus box circulate by oneself to promote the radiating efficiency.
The inner surface of the shell 1, the heating element or one or more of the heat dissipation mechanisms 4 are provided with a high-emissivity coating, the high-radiation coating technology is a surface treatment technology for coating a layer of coating material with high emissivity on the surface of a material or a machine body, the physical and chemical properties of the surface of the original machine body are changed, and the heat dissipation efficiency among the shell 1, the heating element and the heat dissipation mechanisms 4 is improved by utilizing the high-emissivity coating.
The electric appliance box further comprises a fan 5, the fan 5 is arranged inside the shell 1, the air outlet direction of the fan 5 points to the fins 42 or the plate body 41, air flow generated by the fan 5 is utilized to force air to pass through the fins 42 and the plate body 41, the air flow rate inside the electric appliance box is increased, and therefore heat exchange efficiency is improved.
The heating element is divided into a regular element 2 and a special-shaped element 3 according to the shape, the regular element 2 is arranged on the plate body 41, the special-shaped element 3 is connected with the plate body 41 through a heat transfer mechanism, whether the shape of the heating element is regular or not is judged, whether the conditions such as the occupation ratio of a plane and the area of the plane to the surface area of the whole heating element are met or not, so that the contact between the heating element and the heat dissipation mechanism 4 can meet the heat dissipation requirement of the heating element, when the heat dissipation requirement is met, the heating element is divided into regular element 2 groups and is directly arranged on the heat dissipation mechanism 4 for heat dissipation, when the heat dissipation requirement is not met, the heating element is divided into special-shaped element 3 groups and is fixedly arranged on the inner surface of the shell 1, the special-shaped element 3 is connected with the heat dissipation mechanism 4 through the heat transfer mechanism, and a low-resistance heat conduction channel is formed between the special, therefore, heat is effectively transmitted to the heat dissipation mechanism 4 to be dissipated, heat dissipation efficiency is guaranteed, and the problem of poor heat dissipation efficiency in the prior art is solved.
The plate body 41 is provided with a first mounting surface and a second mounting surface which are adjacent to each other, the regular component 2 is arranged on the first mounting surface, and the special-shaped component 3 is connected with the second mounting surface through a heat transfer mechanism, namely the plate body 41 is positioned in the middle of the shell 1, and the first mounting surface and the second mounting surface of the plate body have a distance from the inner surface of the shell 1.
The plate body 41 is of a cuboid structure, the top surface of the cuboid structure forms the first mounting surface, and the side surface of the cuboid structure forms the second mounting surface.
The material of the plate body 41 comprises aluminum and the material of the cooling channel 43 comprises copper.
The refrigerant flowing in the cooling passage 43 includes water or refrigerant.
An air conditioner comprises the electrical box.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (14)
1. An electrical box characterized in that: the method comprises the following steps:
a housing (1);
the heating component is arranged in the shell (1);
the heat dissipation mechanism (4) is arranged in the shell (1) and comprises a plate body (41) and fins (42), part of the heat dissipation mechanism is arranged on the plate body (41), and the rest part of the heat dissipation mechanism is arranged on the inner surface of the shell (1).
2. The appliance cartridge of claim 1, wherein: the number of fins (42) is obtained according to the following formula:
n＝Int[(W+S)/(t+S)]；
wherein: int is a rounding function, W is the width of the plate body, S is the spacing between adjacent fins, and t is the fin thickness.
3. The appliance cartridge of claim 2, wherein: the value range of the fin thickness t is 0.5mm to 2.5 mm.
4. The appliance cartridge of claim 1, wherein: the heat dissipation mechanism (4) further comprises a cooling channel (43), the cooling channel (43) is arranged in the plate body (41), and two ends of the cooling channel (43) penetrate through the shell (1) and the external part of the electric appliance box.
5. The appliance cartridge of claim 4, wherein: the plate body (41) comprises a cover plate and a base which are buckled with each other, the cooling channel (43) is arranged between the cover plate and the base, and the fins (42) are arranged on the cover plate.
6. The appliance cartridge of claim 1, wherein: the length of fin (42) is less than the length of plate body (41), and when plate body (41) was vertically set up, fin (42) set up in the first half of plate body (41).
7. The appliance cartridge of claim 1, wherein: and a high-emissivity coating is arranged on one or more of the inner surface of the shell (1), the heating element or the heat dissipation mechanism (4).
8. The appliance cartridge of claim 1, wherein: the electrical box further comprises a fan (5), wherein the fan (5) is arranged inside the shell (1), and the air outlet direction of the fan (5) points to the fin (42) or the plate body (41).
9. The appliance cartridge of claim 1, wherein: the heating element is divided into a regular element (2) and a special-shaped element (3) according to the shape, the regular element (2) is arranged on the plate body (41), and the special-shaped element (3) is connected with the plate body (41) through a heat transfer mechanism.
10. The appliance cartridge of claim 9, wherein: the plate body (41) is provided with a first mounting surface and a second mounting surface which are adjacent to each other, the regular component (2) is arranged on the first mounting surface, and the special-shaped component (3) is connected with the second mounting surface through a heat transfer mechanism.
11. The appliance cartridge of claim 10, wherein: the plate body (41) is of a cuboid structure, the top face of the cuboid structure forms the first mounting face, and the side face of the cuboid structure forms the second mounting face.
12. The appliance cartridge of claim 4, wherein: the material of the plate body (41) comprises aluminum and the material of the cooling channel (43) comprises copper.
13. The appliance cartridge of claim 4, wherein: the refrigerant flowing in the cooling channel (43) comprises water or refrigerant.
14. An air conditioner, characterized in that: an appliance box comprising any of claims 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010396127.5A CN111447806A (en) | 2020-05-11 | 2020-05-11 | Electric appliance box and air conditioner that radiating efficiency is high |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010396127.5A CN111447806A (en) | 2020-05-11 | 2020-05-11 | Electric appliance box and air conditioner that radiating efficiency is high |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111447806A true CN111447806A (en) | 2020-07-24 |
Family
ID=71652035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010396127.5A Pending CN111447806A (en) | 2020-05-11 | 2020-05-11 | Electric appliance box and air conditioner that radiating efficiency is high |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111447806A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4382819A4 (en) * | 2021-08-07 | 2024-12-04 | GD Midea Heating & Ventilating Equipment Co., Ltd. | ELECTRICAL CONTROL BOX, OUTDOOR UNIT OF AN AIR CONDITIONER AND AIR CONDITIONER |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030056942A1 (en) * | 2001-09-05 | 2003-03-27 | Showa Denko K.K. | Heat sink, control device having the heat sink and machine tool provided with the device |
| US20160174411A1 (en) * | 2013-07-05 | 2016-06-16 | Lg Electronics Inc. | Air conditioner |
| CN106793700A (en) * | 2016-12-29 | 2017-05-31 | 广东美的暖通设备有限公司 | Heat sink assembly, electric-controlled box and refrigeration system for electric-controlled box |
| CN207099513U (en) * | 2017-09-05 | 2018-03-13 | 陈庆洪 | A kind of good degree of protection of heat sinking function is up to 65 grades and the electric cabinet of the above |
| CN107906705A (en) * | 2017-12-15 | 2018-04-13 | 珠海格力电器股份有限公司 | Air conditioner and electrical box thereof |
| CN208077097U (en) * | 2017-12-27 | 2018-11-09 | 曙光节能技术（北京）股份有限公司 | A kind of cooling system |
| CN110645640A (en) * | 2019-10-25 | 2020-01-03 | 珠海格力电器股份有限公司 | Electric appliance box and outdoor unit with high heat dissipation efficiency |
| CN212086784U (en) * | 2020-05-11 | 2020-12-04 | 珠海格力电器股份有限公司 | Electric appliance box and air conditioner that radiating efficiency is high |
-
2020
- 2020-05-11 CN CN202010396127.5A patent/CN111447806A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030056942A1 (en) * | 2001-09-05 | 2003-03-27 | Showa Denko K.K. | Heat sink, control device having the heat sink and machine tool provided with the device |
| US20160174411A1 (en) * | 2013-07-05 | 2016-06-16 | Lg Electronics Inc. | Air conditioner |
| CN106793700A (en) * | 2016-12-29 | 2017-05-31 | 广东美的暖通设备有限公司 | Heat sink assembly, electric-controlled box and refrigeration system for electric-controlled box |
| CN207099513U (en) * | 2017-09-05 | 2018-03-13 | 陈庆洪 | A kind of good degree of protection of heat sinking function is up to 65 grades and the electric cabinet of the above |
| CN107906705A (en) * | 2017-12-15 | 2018-04-13 | 珠海格力电器股份有限公司 | Air conditioner and electrical box thereof |
| CN208077097U (en) * | 2017-12-27 | 2018-11-09 | 曙光节能技术（北京）股份有限公司 | A kind of cooling system |
| CN110645640A (en) * | 2019-10-25 | 2020-01-03 | 珠海格力电器股份有限公司 | Electric appliance box and outdoor unit with high heat dissipation efficiency |
| CN212086784U (en) * | 2020-05-11 | 2020-12-04 | 珠海格力电器股份有限公司 | Electric appliance box and air conditioner that radiating efficiency is high |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4382819A4 (en) * | 2021-08-07 | 2024-12-04 | GD Midea Heating & Ventilating Equipment Co., Ltd. | ELECTRICAL CONTROL BOX, OUTDOOR UNIT OF AN AIR CONDITIONER AND AIR CONDITIONER |
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