CN107197613B - Heat radiation structure of electric appliance box and air conditioner outdoor unit with heat radiation structure - Google Patents
Heat radiation structure of electric appliance box and air conditioner outdoor unit with heat radiation structure Download PDFInfo
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- CN107197613B CN107197613B CN201710557158.2A CN201710557158A CN107197613B CN 107197613 B CN107197613 B CN 107197613B CN 201710557158 A CN201710557158 A CN 201710557158A CN 107197613 B CN107197613 B CN 107197613B
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- pressure channel
- outdoor unit
- shell
- air conditioner
- electrical box
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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
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- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention relates to the technical field of air conditioners, in particular to a heat dissipation structure of an electrical box, which comprises the following components: the electric appliance box comprises an electric appliance box shell, a high-voltage channel and a low-voltage channel; the electric box shell is a sealed hollow shell, one end of the high-pressure channel is communicated with one side of the electric box shell, and the other end of the high-pressure channel is communicated with the outdoor environment; one end of the low-pressure channel is communicated with the other side of the electric box shell, and the other end of the low-pressure channel is communicated with the air inlet side of a fan of the air conditioner outdoor unit. When the air conditioner outdoor unit works, the air in the air conditioner outdoor unit is pumped out by the air blower, so that the external air of the air conditioner outdoor unit enters the electric box shell from the high-pressure channel, flows through the high-temperature electric element and flows out from the low-pressure channel, and then the heat of the electric element is brought out of the electric box shell to cool the electric box and the internal components, and the electric box and the electric element in the electric box are ensured to work at normal temperature. The invention also relates to an air conditioner outdoor unit.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an electric box heat dissipation structure and an air conditioner outdoor unit with the same.
Background
Because the air conditioner electrical components work to generate heat, and the temperature environment has important influence on the service life and performance of the electrical components, the air conditioner is generally designed with a structure for radiating the electrical components. The traditional method for radiating the air conditioner electric appliance box comprises the steps that aluminum radiating pieces are generally adopted by the household and commercial variable frequency air conditioner electric appliance box, the shape of the aluminum radiating pieces is multi-layer flaky, porous and the like, and heat inside the electric appliance box is conducted outside the electric appliance box by utilizing the heat conductivity of aluminum products, so that the aim of radiating is achieved, however, the aluminum radiating plate is poor in radiating effect, and under the condition of high ambient temperature, the electric appliance box cannot be guaranteed to radiate and cool to a proper temperature point.
The other heat dissipation method is cooling and heat dissipation by a refrigerant, the cooling medium is assembled on the aluminum radiator through a refrigerant pipe, and the low-temperature refrigerant flows through the radiator to absorb heat, but the heat dissipation method is complex in structure and has an unobvious heat dissipation effect.
The heat dissipation mode is to increase the contact space between the inside and the outside of the electrical box by increasing the shutter, the heat dissipation holes and the like, so that the heat dissipation effect is achieved, however, the heat dissipation method is not obvious in heat dissipation effect, and impurities such as water inlet or insect entering of the electrical box are easily caused, so that the electrical elements can be burnt out, and the electrical box cannot work normally.
Disclosure of Invention
Based on this, it is necessary to provide an electric appliance box heat dissipation structure with good heat dissipation effect, difficult water inlet and insect inlet, and an air conditioner outdoor unit comprising the electric appliance box heat dissipation structure aiming at the problems of poor heat dissipation effect, water inlet or insect inlet possibility and the like of the traditional electric appliance box.
The above purpose is achieved by the following technical scheme:
an electrical box heat dissipation structure, comprising: the electric appliance box comprises an electric appliance box shell, a high-voltage channel and a low-voltage channel; the electric box shell is a sealed hollow shell, one end of the high-pressure channel is communicated with one side of the electric box shell, and the other end of the high-pressure channel is communicated with the outdoor environment; one end of the low-pressure channel is communicated with the other side of the electric box shell, and the other end of the low-pressure channel is communicated with the air inlet side of a fan of the air conditioner outdoor unit.
In one embodiment, an end of the high-voltage channel away from the electrical box housing is disposed on a side plate of the air conditioner outdoor unit.
In one embodiment, the high pressure channel is provided with a first filtering structure for preventing impurities from entering the electrical box housing through the high pressure channel.
In one embodiment, the first filter structure is disposed at a port of the high pressure channel.
In one embodiment, the first filter structure comprises a first filter cap threadably coupled to the high pressure passage port.
In one embodiment, a first limiting ring is further arranged on the outer wall of the high-pressure channel, which is far away from the port, and the first limiting ring is used for being abutted against the outer wall of the electric box shell or a side plate of the air conditioner outdoor unit;
the port of the high-pressure channel is fixed on the electric box shell or the air conditioner outdoor unit through the cooperation of the first filter screen cover and the first limiting ring.
In one embodiment, an end of the low pressure channel away from the electrical box housing is disposed on a baffle ring of an outdoor unit of the air conditioner.
In one embodiment, the low pressure channel is provided with a second filtering structure for preventing impurities from entering the electrical box housing through the low pressure channel.
In one embodiment, the second filter structure is disposed at a port of the low pressure passage.
In one embodiment, the second filter structure comprises a second filter cap that is threadably coupled to the low pressure passage port.
In one embodiment, a second limiting ring is further arranged on the outer wall of the low-pressure channel, which is far away from the port, and the second limiting ring is used for being abutted against the outer wall or the guide ring of the electric box shell;
the port of the low-pressure channel is fixed on the electric box shell or the guide ring through the cooperation of the second filter screen cover and the second limiting ring.
An air conditioner outdoor unit comprises a shell, a fan and the electric box heat dissipation structure; the fan is arranged on the shell; the electrical apparatus box casing sets up on the shell, and the one end that electrical apparatus box casing was kept away from to the high pressure passageway sets up on the curb plate of shell, and the one end that electrical apparatus box casing was kept away from to the low pressure passageway switches on with the fan air inlet side.
In one embodiment, a fan mounting hole is formed in the shell, a guide ring is arranged on the fan mounting hole, and the fan is arranged in the guide ring; the guide ring is provided with a mounting hole for mounting the port of the low-pressure channel.
According to the electric box heat radiation structure, the sealed electric box is communicated with the air inlet side of the fan by the low-pressure air duct, and the sealed electric box is communicated with the external environment of the air conditioner outdoor unit by the high-pressure air duct. When the air conditioner outdoor unit works, the air in the air conditioner outdoor unit is pumped out by the air blower, so that the external air of the air conditioner outdoor unit enters the electric box shell from the high-voltage channel, flows through the high-temperature electric element and flows out from the low-voltage channel, and further, the heat of the electric element is brought out of the electric box shell. Therefore, through the continuous flow of the airflow field, the electric box is subjected to heat dissipation and temperature reduction, so that the electric box and the electric elements inside the electric box can work at normal temperature, and the electric box is a sealed shell, so that water and insects can be prevented from entering the electric box.
Drawings
Fig. 1 is a schematic structural explosion diagram of a heat dissipation structure of an electrical box according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an electrical box heat dissipation structure according to an embodiment of the present invention assembled to an air conditioner;
FIG. 3 is a schematic view from above and below of FIG. 2;
FIG. 4 is an enlarged view of a portion of FIG. 3;
fig. 5 is a schematic diagram of a working principle of a heat dissipation structure of an electrical box according to an embodiment of the present invention.
Wherein:
100-an electrical box shell;
200-high pressure channels;
210-a first filtering structure; 211-a first filter cover;
220-a first stop collar;
300-low pressure channel;
310-a second filtering structure; 311-a second filter screen cover;
400-an air conditioner outdoor unit;
410-side plates; 420-a guide ring.
Detailed Description
In order to make the objects, technical schemes and advantages of the present invention more clear, the heat dissipation structure of the electrical box and the air conditioner outdoor unit with the heat dissipation structure of the electrical box are further described in detail through the following embodiments and with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
As shown in fig. 1 and 5, a heat dissipation structure of an electrical box according to an embodiment of the present invention includes: an electrical box housing 100, a high-voltage channel 200, and a low-voltage channel 300; the electrical box shell 100 is a sealed hollow shell, one end of the high-pressure channel 200 is communicated with one side of the electrical box shell 100, and the other end of the high-pressure channel 200 is communicated with the outdoor environment; one end of the low pressure passage 300 is communicated with the other side of the electrical box housing 100, and the other end of the low pressure passage 300 is communicated with the fan air inlet side of the air conditioner outdoor unit 400.
The electrical box housing 100 may have various shapes, such as a square, a rectangular parallelepiped, or other irregular shapes. The electrical box housing 100 may include a box body and a cover body, the electrical components are installed in the box body, a wire passing hole for passing wires may be provided on the box body, the wire passing hole is provided with a wire passing rubber ring for sealing, and then the cover body is connected with the box body in a sealing manner to form the sealed electrical box housing 100.
The end of the high-pressure passage 200 remote from the electrical box housing 100 may be installed at any position of the air-conditioning outdoor unit 400 as long as the high-pressure passage 200 is communicated with the external environment of the air-conditioning outdoor unit 400. In addition, the low pressure channel 300 may be connected to the air inlet side of the fan of the outdoor unit 400 in various manners, as long as the fan is capable of forming a low pressure area at one end of the low pressure channel 300 away from the electrical box housing 100 to drive the airflow in the low pressure channel 300 to flow. Preferably, one end of the high-pressure passage 200, which is far from the electrical box housing 100, is disposed on a side plate 410 of the air conditioner outdoor unit 400; one end of the low pressure passage 300, which is far from the electrical box housing 100, is disposed on the guide ring 420 of the air conditioner outdoor unit 400.
When the air conditioner outdoor unit 400 is operated, the fan rotates to draw out air inside the air conditioner to the outdoor environment, so that an air pressure difference is formed between the inside of the air conditioner outdoor unit 400 and the outside of the air conditioner outdoor unit 400, and air convection is formed. In this embodiment, the low-pressure air duct is used to connect the sealed electrical box housing 100 with the air inlet side of the fan, and the high-pressure air duct is used to connect the sealed electrical box housing 100 with the external environment of the air conditioner outdoor unit 400. When the air conditioner outdoor unit 400 is operated, the air inside the air conditioner outdoor unit 400 is drawn out by the air blower, so that the external air of the air conditioner outdoor unit 400 enters the electrical box housing 100 from the high-voltage channel 200, flows through the high-temperature electrical components and flows out from the low-voltage channel 300, and then brings heat of the electrical components out of the electrical box housing 100. Therefore, through continuous flow of the airflow field, the electric box is subjected to heat dissipation and temperature reduction, so that the electric box and electric elements in the electric box can work at normal temperature.
In this embodiment, because the high-pressure channel 200 is communicated with the external environment of the air-conditioning outdoor unit 400, when the air-conditioning outdoor unit 400 works, the air flow in the electrical box housing 100 can continuously pass through, and the flow rate of the air flow can be adjusted according to the fan rotation speed. In other words, when the air conditioner operates at different rotational speeds, the air flow heat exchange is stopped when the air conditioner stops operating corresponding to different air flows. In addition, since the electrical box housing 100 is sealed, it is advantageous to prevent water and insects.
Referring to fig. 1 and 2, as one embodiment, a first filter structure 210 is provided on the high pressure passage 200 for preventing foreign materials from entering the electrical box housing 100 through the high pressure passage 200. The first filter structure 210 may be disposed in the high pressure channel 200 or at a port of the high pressure channel 200, and the high pressure channel 200 may have only one port disposed with the first filter structure 210 or may have both ports disposed with the first filter structure 210. Preferably, the first filter structure 210 is disposed at a port of the high pressure channel 200.
As an embodiment, the low pressure passage 300 is provided with a second filtering structure 310 for preventing foreign materials from entering the electrical box housing 100 through the low pressure passage 300. The second filter structure 310 may be disposed in the low pressure passage 300 or at a port of the low pressure passage 300, and the low pressure passage 300 may have only one port provided with the second filter structure 310 or may have both ports provided with the second filter structure 310. Preferably, the second filtering structure 310 is disposed at a port of the low pressure passage 300.
The first filtering structure 210 may have various structural forms, for example: the first filter structure 210 may be a filter screen, a filter cloth, or the like. In addition, the connection manner between the first filtering structure 210 and the high-pressure channel 200 may be various, for example: welding, or securing a filter mesh or cloth to the high pressure passage 200 using clamps or wires, etc. Preferably, the first filtering structure 210 includes a first filter cover 211, and the first filter cover 211 is screwed with the port of the high pressure channel 200. The first filter cover 211 may have a structure similar to a bottle cap, and the cap surface of the bottle cap may be provided with a plurality of ventilation holes, and a filter screen or a filter cloth is placed in the bottle cap; of course, the whole cover surface can be replaced by a filter screen.
The second filtering structure 310 may have various structures, and may be connected to the low pressure channel 300 in various manners, as with the first filtering structure 210. Preferably, the second filtering structure 310 includes a second filter cap 311, and the second filter cap 311 is screwed with the port of the low pressure passage 300. And the second filter cover 311 may be constructed as described above with reference to the first filter cover 211.
In this embodiment, by providing the filtering structures on the high-pressure channel 200 and the low-pressure channel 300, impurities in the external environment of the air-conditioning outdoor unit 400 can be effectively prevented from entering the electrical box housing 100, and electrical components in the electrical box housing 100 are effectively protected.
Referring to fig. 3 and 4, as an embodiment, a first limiting ring 220 is further disposed on an outer wall of the high-pressure channel 200, which is distant from the port, and the first limiting ring 220 is used to abut against an outer wall of the electrical box housing 100 or a side plate 410 of the air conditioner outdoor unit 400; the first filter cover 211 is matched with the first limit ring 220 to fix the port of the high pressure channel 200 on the electrical box housing 100 or the air conditioner outdoor unit 400.
In addition, a second limiting ring is further arranged on the outer wall of the low-pressure channel 300, which is far away from the port, and the second limiting ring is used for being abutted against the outer wall of the electrical box shell 100 or the guide ring 420; the second filter cover 311 is matched with the second limiting ring to fix the port of the low-pressure channel 300 on the electrical box shell 100 or the guide ring 420.
When an installer needs to install the electrical box heat dissipation structure on the air conditioner outdoor unit 400, one end of the high-voltage channel 200 can be inserted into the installation hole of the electrical box housing 100, the first limiting ring 220 is abutted against the electrical box housing 100, and the first filter screen cover 211 is screwed on the port of the high-voltage channel 200 through threads, so that the electrical box housing 100 is clamped between the first filter screen cover 211 and the first limiting ring 220. Similarly, the other end of the high pressure passage 200 is fixed to the side plate 410 of the outdoor unit 400 in this way. Of course, the low pressure passage 300 may be fixed to the cartridge housing 100 and the deflector 420 in the above-described manner. Thus, the assembly and disassembly of the mounting personnel can be facilitated.
The embodiment of the invention also provides an air conditioner outdoor unit which comprises a shell, a fan and the electric box heat radiation structure; the fan is arranged on the shell; the electrical apparatus box casing also sets up on the shell, and the one end that electrical apparatus box casing was kept away from to the high pressure passageway sets up on the curb plate of shell, and the one end that electrical apparatus box casing was kept away from to the low pressure passageway switches on with the fan air inlet side.
Wherein, a fan mounting hole is arranged on the shell, a guide ring is arranged on the fan mounting hole, and the fan is arranged in the guide ring; the guide ring is provided with a mounting hole for mounting the port of the low-pressure channel.
Like this, during the operation of this air condensing units, the air of shell is taken out to the fan to make the outside air of air condensing units get into in the electrical apparatus box casing from the high pressure passageway, flow through high temperature electrical apparatus component and flow out from the low pressure passageway, and then take electrical apparatus component's heat out electrical apparatus box casing in order to dispel the heat the electrical apparatus box and reduce the temperature to electrical apparatus box and inside electrical apparatus component, in order to ensure that electrical apparatus box and its inside electrical apparatus component work under normal temperature, simultaneously, because electrical apparatus box casing is sealed casing, consequently can effectively waterproof protection against insects.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. An electrical box heat radiation structure, which is characterized by comprising: an electrical box housing (100), a high-voltage channel (200) and a low-voltage channel (300);
the electric appliance box shell (100) is a sealed hollow shell, the electric appliance box shell (100) comprises a box body and a cover body which are connected in a sealing way, the box body is used for mounting electric appliance elements, a wire passing hole used for passing wires is formed in the box body, and a wire passing rubber ring used for sealing is arranged in the wire passing hole;
one end of the high-pressure channel (200) is communicated with one side of the electrical box shell (100), and the other end of the high-pressure channel (200) is communicated with an outdoor environment; one end of the low-pressure channel (300) is communicated with the other side of the electric box shell (100), and the other end of the low-pressure channel (300) is communicated with the air inlet side of a fan of the air conditioner outdoor unit (400);
one end of the high-pressure channel (200) far away from the electrical box shell (100) is arranged on a side plate (410) of the air conditioner outdoor unit (400), a first filtering structure (210) is arranged on the high-pressure channel (200), and the first filtering structure (210) is used for preventing sundries from entering the electrical box shell (100) through the high-pressure channel (200);
the first filtering structure (210) comprises a first filter screen cover (211), a first limiting ring (220) is further arranged on the outer wall of the high-pressure channel (200) which is far away from the port by a certain distance, the first limiting ring (220) is used for being abutted to the outer wall of the electric box shell (100) or the side plate (410) of the air conditioner outdoor unit (400), and the port of the high-pressure channel (200) is fixed to the electric box shell (100) or the air conditioner outdoor unit (400) through the cooperation of the first filter screen cover (211) and the first limiting ring (220).
2. The electrical box heat dissipating structure according to claim 1, wherein the first filtering structure (210) is arranged at a port of the high pressure channel (200).
3. The electrical box heat dissipating structure according to claim 1 or 2, wherein the first filter cover (211) is screwed with the port of the high-pressure channel (200).
4. The heat dissipation structure of the electrical box according to claim 1, wherein an end of the low-pressure channel (300) away from the electrical box housing (100) is disposed on a deflector (420) of the air conditioner outdoor unit (400).
5. The electrical box heat dissipating structure according to claim 4, wherein a second filtering structure (310) is provided on the low pressure channel (300), and the second filtering structure (310) is used for preventing impurities from entering the electrical box housing (100) through the low pressure channel (300).
6. The electrical box heat dissipating structure of claim 5, wherein the second filtering structure (310) is disposed at a port of the low pressure channel (300).
7. The electrical box heat dissipating structure according to claim 5 or 6, wherein the second filter structure (310) comprises a second filter cover (311), and the second filter cover (311) is screwed with the low pressure channel (300) port.
8. The heat dissipation structure of an electrical box according to claim 7, wherein a second limiting ring is further arranged on an outer wall of the low-voltage channel (300) away from the port by a certain distance, and the second limiting ring is used for being abutted on an outer wall of the electrical box shell (100) or the guide ring (420);
the second filter screen cover (311) is matched with the second limiting ring to fix the port of the low-pressure channel (300) on the electric box shell (100) or the guide ring (420).
9. An outdoor unit of an air conditioner, comprising a casing, a fan and the electrical box heat radiation structure as set forth in any one of claims 1-8; the fan is arranged on the shell; the electric appliance box shell is arranged on the shell, one end, far away from the electric appliance box shell, of the high-voltage channel is arranged on a side plate of the shell, and one end, far away from the electric appliance box shell, of the low-voltage channel is communicated with the air inlet side of the fan.
10. The outdoor unit of claim 9, wherein the housing is provided with a fan mounting hole, the fan mounting hole is provided with a guide ring, and the fan is arranged in the guide ring; and the guide ring is provided with a mounting hole for mounting the low-pressure channel port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710557158.2A CN107197613B (en) | 2017-07-10 | 2017-07-10 | Heat radiation structure of electric appliance box and air conditioner outdoor unit with heat radiation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710557158.2A CN107197613B (en) | 2017-07-10 | 2017-07-10 | Heat radiation structure of electric appliance box and air conditioner outdoor unit with heat radiation structure |
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| Publication Number | Publication Date |
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| CN107197613A CN107197613A (en) | 2017-09-22 |
| CN107197613B true CN107197613B (en) | 2023-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710557158.2A Active CN107197613B (en) | 2017-07-10 | 2017-07-10 | Heat radiation structure of electric appliance box and air conditioner outdoor unit with heat radiation structure |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084379A (en) * | 2018-09-17 | 2018-12-25 | 珠海格力电器股份有限公司 | Air-conditioner outdoor unit and electrical appliance kit |
| CN110006107A (en) * | 2019-05-05 | 2019-07-12 | 珠海格力电器股份有限公司 | Outdoor unit and air conditioner with it |
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| CN102665380A (en) * | 2012-04-09 | 2012-09-12 | 美的集团有限公司 | Gas-liquid separation type heat dissipation air duct structure of electric control box of outdoor unit of air conditioner |
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| CN104955315A (en) * | 2015-06-09 | 2015-09-30 | 广东美的暖通设备有限公司 | Electrical control module heat dissipation device |
| CN204786888U (en) * | 2015-05-22 | 2015-11-18 | 珠海格力电器股份有限公司 | Electrical apparatus box subassembly and have its air condensing units |
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| CN207011188U (en) * | 2017-07-10 | 2018-02-13 | 珠海格力电器股份有限公司 | Electrical appliance kit radiator structure and there is its air-conditioner outdoor unit |
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2017
- 2017-07-10 CN CN201710557158.2A patent/CN107197613B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102665380A (en) * | 2012-04-09 | 2012-09-12 | 美的集团有限公司 | Gas-liquid separation type heat dissipation air duct structure of electric control box of outdoor unit of air conditioner |
| CN204438362U (en) * | 2015-02-05 | 2015-07-01 | 广东美的暖通设备有限公司 | Air-conditioner outdoor unit and there is its air-conditioner and electric-controlled box assembly |
| CN204786888U (en) * | 2015-05-22 | 2015-11-18 | 珠海格力电器股份有限公司 | Electrical apparatus box subassembly and have its air condensing units |
| CN104955315A (en) * | 2015-06-09 | 2015-09-30 | 广东美的暖通设备有限公司 | Electrical control module heat dissipation device |
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| CN107197613A (en) | 2017-09-22 |
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