CN219531016U - Electrical apparatus box subassembly and air conditioning unit - Google Patents
Electrical apparatus box subassembly and air conditioning unit Download PDFInfo
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- CN219531016U CN219531016U CN202320624311.XU CN202320624311U CN219531016U CN 219531016 U CN219531016 U CN 219531016U CN 202320624311 U CN202320624311 U CN 202320624311U CN 219531016 U CN219531016 U CN 219531016U
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Abstract
The utility model provides an electric box assembly and an air conditioning unit. The electric appliance box assembly comprises a box body, wherein an electric appliance box air outlet is formed in the upper portion of the box body, and an electric appliance box air inlet is formed in the lower portion of the box body; the control main board is arranged in the box body and is positioned at the air outlet of the electric appliance box; the inductor is arranged on the control main board, and the inductor is positioned on the part, close to the air outlet of the electrical box, of the control main board. According to the electric box assembly and the air conditioning unit, the inductor is arranged at the air outlet of the electric box, and on the premise that the flow of gas in the box body is not hindered, the heat of the inductor is prevented from entering the box body, so that the whole temperature in the box body can not be improved, the heat dissipation efficiency of other structures in the box body is ensured, and the heat dissipation effect of the electric box is improved.
Description
Technical Field
The utility model relates to the technical field of air treatment equipment, in particular to an electric box assembly and an air conditioning unit.
Background
An integrated controller is arranged in the electric box, heating components on the controller main board are unevenly distributed, and meanwhile, the heating power density of each heating component is also greatly different. For example, a PFC inductor in a PFC circuit bears switching ripple current of tens of kHz, hysteresis loss of an inductance magnetic core is large, so that the temperature of the PFC inductor is generally high, saturation of the inductance magnetic core and reduction of inductance are easily caused, and electrical performance and reliability of a circuit system are seriously affected. In the design of the electrical box in the prior art, the distribution of heating power density on the PCB cannot be considered, and meanwhile, the flow characteristics of the space nearby the electrical box in the flow field of the whole machine cannot be considered to design a heat dissipation air duct aiming at a specific main board and a specific device in the electrical box, so that the problem of poor heat dissipation effect in the electrical box is solved.
Disclosure of Invention
In order to solve the technical problem that the heat dissipation effect of the electrical box in the prior art is poor, an electrical box assembly and an air conditioning unit are provided, wherein the electrical box assembly is used for arranging an inductor at an air outlet of the electrical box to ensure the heat dissipation effect.
The utility model provides an electrical box assembly, comprising:
the box body, the upper portion of the said box body has electrical apparatus box air outlets, the inferior part of the said box body has electrical apparatus box air inlets;
the control main board is arranged in the box body and is positioned at the air outlet of the electric appliance box;
the inductor is arranged on the control main board, and the inductor is positioned on the part, close to the air outlet of the electrical box, of the control main board.
And a choke coil is further arranged on the control main board and is positioned on one side of the inductor away from the air outlet of the electrical box.
The control main board further comprises a capacitor, and the capacitor is located at the lower side of the inductor in the vertical direction.
The electric box assembly is arranged in the heat dissipation air duct, and the flow direction of the air flow of the heat dissipation air duct flows from the bottom of the box body to the top of the box body.
The box body comprises a first side plate, a louver hole is formed in the first side plate, and the louver hole forms an air inlet of the electric box.
The electrical box assembly further comprises a louver blade, wherein the louver blade is arranged at the louver hole, and at least part of the louver blade protrudes out of the box body; and/or the louver blade is arranged at the air outlet of the electrical box, and at least part of the louver blade protrudes out of the box body.
The box body further comprises a bottom plate, the bottom plate is provided with a fixing part close to the air outlet of the electric box and an air inlet part far away from the air outlet of the electric box, the fixing part is arranged on a preset structure, the air inlet part is provided with a heat dissipation hole, and the heat dissipation hole forms an air inlet of the electric box.
The electrical apparatus box subassembly still includes the baffle, the baffle set up in the box body and with box body internal partition is first hold the chamber and the second holds the chamber, just the baffle with have first interval between the bottom plate, first hold the chamber pass through first interval with the second holds the chamber intercommunication, control mainboard set up in the second holds the intracavity, just the louvre with first hold the chamber intercommunication.
The utility model provides an air conditioning unit which comprises the electrical box assembly.
The air conditioning unit further includes:
a housing;
the separation piece is arranged in the shell, the interior of the shell is separated into an outdoor cavity and an indoor cavity by the separation piece, an outdoor air outlet is formed in the top surface of the shell, an outdoor air inlet is formed in the side wall of the shell, and the outdoor air outlet and the outdoor air inlet are communicated with the outdoor cavity;
the fan is arranged in the outdoor cavity and is positioned at the outdoor air outlet;
the electrical box assembly is arranged in the outdoor cavity and below the fan, and the electrical box assembly is arranged on the partition piece.
The partition piece is provided with a flow guide part, and the flow guide part is positioned between the outdoor air inlet and the electric box air inlet.
The section of the partition piece is trapezoid, and the inclined sides of the trapezoid form the flow guiding part.
The box body further comprises a first side plate, the shell is provided with a first panel, a second interval is reserved between the first side plate and the first panel, a shutter hole is formed in the first side plate, and the shutter hole is communicated with the second interval.
The fan is provided with a guide ring, and the upper edge of the air outlet of the electrical box and the lower edge of the guide ring are positioned on the same horizontal plane.
According to the electric box assembly and the air conditioning unit, the inductor is arranged at the air outlet of the electric box, and on the premise that the flow of gas in the box body is not hindered, the heat of the inductor is prevented from entering the box body, so that the whole temperature in the box body can not be improved, the heat dissipation efficiency of other structures in the box body is ensured, and the heat dissipation effect of the electric box is improved.
Drawings
Fig. 1 is a schematic structural diagram of an electrical box assembly according to an embodiment of the present utility model;
fig. 2 is an airflow simulation diagram of an electrical box assembly according to an embodiment of the present utility model;
fig. 3 is a perspective view of an air conditioning unit according to an embodiment of the present utility model;
FIG. 4 is a simulated airflow diagram of an air conditioning unit according to an embodiment of the present utility model;
in the figure:
1. a case body; 11. an air outlet of the electrical box; 2. a control main board; 21. an inductance; 22. a choke coil; 23. a capacitor; 12. a first side plate; 13. a louver hole; 14. a bottom plate; 15. a heat radiation hole; 16. a partition plate; 17. a first pitch; 3. a housing; 4. a partition; 32. an outdoor air inlet; 5. a blower; 41. a flow guiding part; 33. a first panel; .
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. 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 utility model.
The electrical box assembly as shown in fig. 1 to 4, comprises: the box body 1, the upper portion of the box body 1 is provided with an electrical box air outlet 11, and the lower portion of the box body 1 is provided with an electrical box air inlet; the control main board 2 is arranged in the box body 1, and the control main board 2 is positioned at the air outlet 11 of the electrical box; the inductor 21 is arranged on the control main board 2, and the inductor 21 is positioned on a part of the control main board 2 close to the air outlet 11 of the electrical box. The inductor 21 is arranged at the air outlet 11 of the electric box, and under the premise of not obstructing the air flow in the box body 1, the heat of the inductor 21 is prevented from entering the box body 1, so that the heat of the inductor 21 can be ensured not to improve the overall temperature in the box body 1, the heat dissipation efficiency of other structures in the box body 1 is ensured, and the heat dissipation effect of the electric box is improved.
The electric appliance box assembly is arranged in the heat dissipation air duct, and the flowing direction of air flow of the heat dissipation air duct flows from the bottom of the box body 1 to the top of the box body 1. Part of the air in the heat dissipation air channel can enter the box body 1 through the air inlet of the electric box and flow out through the air outlet 11 of the electric box after flowing through the inductor 21 in the box body 1 to realize heat dissipation of the inductor 21, meanwhile, the air in the heat dissipation air channel can flow through the air outlet 11 of the electric box, at the moment, negative pressure can be formed at the air outlet 11 of the electric box to ensure that the air which exchanges heat with the inductor 21 can flow out directly from the air outlet 11 of the electric box, the inside of the box body 1 can not form blocking circulation,
the inductor 21 includes a PFC inductor, and a copper foil and a filtered ac side copper foil are disposed below the PFC inductor.
Preferably, the electric box air outlet 11 is positioned on the side wall of the upper part of the box body 1, so that condensed water and the like generated in the space where the electric box assembly is positioned are prevented from directly dripping into the box body 1 through the electric box air outlet 11, and the safety of the electric box assembly is ensured.
The control main board 2 is also provided with a choke coil 22, and the choke coil 22 is positioned at one side of the inductor 21 away from the air outlet 11 of the electrical box. The air flow flowing through the inside of the box body 1 firstly flows through the choke coil 22 and then flows through the inductor 21, and as the heat of the choke coil 22 is lower than that of the inductor 21, the choke coil 22 can be firstly cooled, then the inductor 21 is cooled, and after the choke coil 22 is cooled, the air can still cool the inductor 21, so that the cooling effect of the choke coil 22 and the inductor 21 is ensured.
Similarly, the control main board 2 further includes a capacitor 23, and the capacitor 23 is located at the lower side of the inductor 21 in the vertical direction. The air flow flowing through the inside of the box body 1 can flow through the capacitor 23 and then flow through the inductor 21, and as the heat of the capacitor 23 is lower than that of the inductor 21, the capacitor 23 can be firstly cooled, then the inductor 21 is cooled, and the air can still cool the inductor 21 after cooling the capacitor 23, so that the cooling effect of the capacitor 23 and the inductor 21 is ensured. Wherein the capacitor 23 comprises a busbar electrolytic capacitor.
The number of the capacitors 23 is multiple, the capacitors 23 are vertically arranged along the direction away from the inductor 21, and the obstruction of the capacitors 23 to the gas flow is reduced as much as possible, so that the heat dissipation effect of the capacitors 23 and the inductor 21 is ensured.
As an embodiment, the box 1 includes a first side plate 12, a louver hole 13 is disposed on the first side plate 12, and the louver hole 13 forms the air inlet of the electrical box. The electrical box assembly further comprises a louver blade, wherein the louver blade is arranged at the louver hole 13, and at least part of the louver blade protrudes out of the box body 1. The louver blocks the air flowing on the outer surface of the box body 1, so that the air is forced to flow into the box body 1 under the guiding action of the louver, the air inlet quantity of the box body 1 is ensured, and the heat dissipation effect of the electric box assembly is effectively improved. Preferably, the louver blades at the louver holes 13 are obliquely arranged, and can guide the gas so that the gas can smoothly flow into the box body 1 through the louver holes 13, so that the flow rate of the gas entering the box body 1 is improved, and the heat dissipation effect of the electric box assembly is further improved. The angle of inclination of the louvres is in the range 30 deg. to 60 deg., preferably 45 deg..
Still further, shutter hole 13 department still is provided with waterproof baffle, and waterproof baffle can not produce the shielding to shutter hole 13, and can prevent that the comdenstion water that produces in the space that electrical apparatus box subassembly is located from getting into inside the box body 1 through shutter hole 13, further guarantees the security of electrical apparatus box subassembly.
The louver blades are arranged at the air outlet 11 of the electrical box, and at least part of the louver blades protrude out of the box body 1. Utilize the tripe to shelter from electric box air outlet 11, avoid the comdenstion water that produces in the environment of electric box place to get into inside the box body 1 through electric box air outlet 11, guarantee the security of electric box subassembly. Preferably, the shutter blade of electrical apparatus box air outlet 11 department is the slope setting, and it can guarantee the air-out effect of electrical apparatus box air outlet 11, can also produce certain manger plate effect to electrical apparatus box air outlet 11 moreover, guarantees the security of electrical apparatus box subassembly.
Furthermore, the waterproof baffle is arranged at the position of the electric box air outlet 11, and the waterproof baffle can not shade the electric box air outlet 11, so that condensed water generated in the space where the electric box assembly is located can be prevented from entering the box body 1 through the electric box air outlet 11, and the safety of the electric box assembly is further ensured.
The box body 1 further comprises a bottom plate 14, the bottom plate 14 is provided with a fixing part close to the air outlet 11 of the electric box and an air inlet part far away from the air outlet 11 of the electric box, the fixing part is arranged on a preset structure, the air inlet part is provided with a heat dissipation hole 15, and the heat dissipation hole 15 forms an air inlet of the electric box. The air flow entering the box body 1 at the radiating hole 15 can form larger pressure in the box body 1, so that the air is forced to be discharged from the air outlet 11 of the electric box, the blocking circulation is avoided in the box body 1, and the radiating effect of the electric box assembly is improved.
The electrical box assembly further comprises a partition plate 16, the partition plate 16 is arranged in the box body 1 and divides the interior of the box body 1 into a first accommodating cavity and a second accommodating cavity, a first space 17 is formed between the partition plate 16 and the bottom plate 14, the first accommodating cavity is communicated with the second accommodating cavity through the first space 17, the control main board 2 is arranged in the second accommodating cavity, and the radiating holes 15 are communicated with the first accommodating cavity. The partition plate 16 is utilized to enable gas entering the box body 1 to flow to the control main board 2 in a concentrated mode through the first interval 17, and therefore the heat dissipation effect on the control main board 2 is improved.
The utility model provides an air conditioning unit which comprises the electrical box assembly.
The air conditioning unit further includes: a housing 3; the partition piece 4 is arranged in the shell 3, the inside of the shell 3 is partitioned into an outdoor cavity and an indoor cavity by the partition piece 4, an outdoor air outlet is formed in the top surface of the shell 3, an outdoor air inlet 32 is formed in the side wall of the shell 3, and the outdoor air outlet and the outdoor air inlet 32 are communicated with the outdoor cavity; the fan 5 is arranged in the outdoor cavity, and the fan 5 is positioned at the outdoor air outlet; the electrical box assembly is arranged in the outdoor cavity below the fan 5, and the electrical box assembly is arranged on the partition piece 4. The electric box assembly is arranged below the fan 5, and the fan 5 generates negative pressure at the air outlet 11 of the electric box, so that air is forced to flow into the box body 1, the heat dissipation effect of the electric box assembly is improved, and the air inlet with large air quantity is realized.
Further, a flow guiding portion 41 is formed on the partition 4, and the flow guiding portion 41 is located between the outdoor air inlet 32 and the electrical box air inlet. The air flow of the outdoor air inlet 32 is guided to the air inlet of the electric box by the guide part 41, so that the air flow speed and the air flow at the air inlet of the electric box are improved, and the heat dissipation efficiency of the electric box assembly is improved. Meanwhile, the flow guiding part 41 can also increase the flow of the gas to the outdoor air outlet, so that the heat exchange efficiency of the air conditioning unit is ensured. Wherein the cross section of the partition 4 is trapezoid, and the oblique side of the trapezoid forms the flow guiding part 41. When the partition 4 is provided with a trapezoidal cross section, the indoor side heat exchanger can be vertically arranged, and the heat exchange efficiency of the indoor side heat exchanger is improved.
The box body 1 further comprises a first side plate 12, the shell 3 is provided with a first panel 33, a second interval is arranged between the first side plate 12 and the first panel 33, a shutter hole 13 is formed in the first side plate 12, and the shutter hole 13 is communicated with the second interval. The gas can flow through the second interval under the effect of fan 5, and box body 1 can be through carrying out the air inlet with the tripe hole 13 of second interval intercommunication this moment, avoids the separation piece 4 to influence the air inlet amount of electrical apparatus box subassembly to the shielding of box body 1.
The fan 5 is provided with a guide ring, and the upper edge of the air outlet 11 of the electrical box and the lower edge of the guide ring are positioned on the same horizontal plane. The negative pressure generated by the fan 5 at the guide ring is the largest, namely, the larger negative pressure can be generated at the air outlet 11 of the electric box, so that the air flow and the air flow velocity in the box body 1 are improved, and the heat dissipation effect of the electric box assembly is further improved.
Preferably, the air conditioning unit is a roof machine.
The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. 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 utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (14)
1. An electrical box assembly, characterized in that: comprising the following steps:
the box comprises a box body (1), wherein an electric box air outlet (11) is formed in the upper portion of the box body (1), and an electric box air inlet is formed in the lower portion of the box body (1);
the control main board (2) is arranged in the box body (1), and the control main board (2) is positioned at the air outlet (11) of the electrical box;
the inductor (21) is arranged on the control main board (2), and the inductor (21) is positioned on a part of the control main board (2) close to the air outlet (11) of the electrical box.
2. The electrical box assembly of claim 1, wherein: and a choke coil (22) is further arranged on the control main board (2), and the choke coil (22) is positioned at one side of the inductor (21) away from the air outlet (11) of the electrical box.
3. The electrical box assembly of claim 1, wherein: the control main board (2) further comprises a capacitor (23), and the capacitor (23) is located on the lower side of the inductor (21) in the vertical direction.
4. The electrical box assembly of claim 1, wherein: the electric box assembly is arranged in the heat dissipation air duct, and the flow direction of the air flow of the heat dissipation air duct flows from the bottom of the box body (1) to the top of the box body (1).
5. The electrical box assembly of claim 4, wherein: the box body (1) comprises a first side plate (12), a shutter hole (13) is formed in the first side plate (12), and the shutter hole (13) forms an air inlet of the electric box.
6. The electrical box assembly of claim 5, wherein: the electrical box assembly further comprises a louver blade, the louver blade is arranged at the louver hole (13), and at least part of the louver blade protrudes out of the box body (1); and/or the louver blades are arranged at the air outlet (11) of the electrical box, and at least part of the louver blades protrude out of the box body (1).
7. The electrical box assembly of claim 4, wherein: the box body (1) further comprises a bottom plate (14), the bottom plate (14) is provided with a fixing part close to the air outlet (11) of the electric box and an air inlet part far away from the air outlet (11) of the electric box, the fixing part is arranged on a preset structure, the air inlet part is provided with a heat dissipation hole (15), and the heat dissipation hole (15) forms an air inlet of the electric box.
8. The electrical box assembly of claim 7, wherein: the electrical box assembly further comprises a partition plate (16), the partition plate (16) is arranged in the box body (1) and divides the interior of the box body (1) into a first accommodating cavity and a second accommodating cavity, a first space (17) is arranged between the partition plate (16) and the bottom plate (14), the first accommodating cavity is communicated with the second accommodating cavity through the first space (17), and the control main board (2) is arranged in the second accommodating cavity, and the radiating holes (15) are communicated with the first accommodating cavity.
9. An air conditioning unit, characterized in that: comprising the electrical box assembly of any one of claims 1 to 8.
10. The air conditioning assembly of claim 9, wherein: the air conditioning unit further includes:
a housing (3);
the separation piece (4), the separation piece (4) is arranged in the shell (3), the separation piece (4) divides the interior of the shell (3) into an outdoor cavity and an indoor cavity, the top surface of the shell (3) is provided with an outdoor air outlet, the side wall of the shell (3) is provided with an outdoor air inlet (32), and the outdoor air outlet and the outdoor air inlet (32) are communicated with the outdoor cavity;
the fan (5) is arranged in the outdoor cavity, and the fan (5) is positioned at the outdoor air outlet;
the electrical box assembly is arranged in the outdoor cavity and below the fan (5), and the electrical box assembly is arranged on the partition piece (4).
11. The air conditioning assembly of claim 10, wherein: the partition piece (4) is provided with a flow guide part (41), and the flow guide part (41) is positioned between the outdoor air inlet (32) and the electric box air inlet.
12. The air conditioning assembly of claim 11, wherein: the section of the partition piece (4) is trapezoid, and the inclined sides of the trapezoid form the flow guiding part (41).
13. The air conditioning assembly of claim 10, wherein: the box body (1) further comprises a first side plate (12), the shell (3) is provided with a first panel (33), a second interval is reserved between the first side plate (12) and the first panel (33), a shutter hole (13) is formed in the first side plate (12), and the shutter hole (13) is communicated with the second interval.
14. The air conditioning assembly of claim 10, wherein: the fan (5) is provided with a guide ring, and the upper edge of the air outlet (11) of the electrical box and the lower edge of the guide ring are positioned on the same horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320624311.XU CN219531016U (en) | 2023-03-27 | 2023-03-27 | Electrical apparatus box subassembly and air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320624311.XU CN219531016U (en) | 2023-03-27 | 2023-03-27 | Electrical apparatus box subassembly and air conditioning unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219531016U true CN219531016U (en) | 2023-08-15 |
Family
ID=87645373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320624311.XU Active CN219531016U (en) | 2023-03-27 | 2023-03-27 | Electrical apparatus box subassembly and air conditioning unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219531016U (en) |
-
2023
- 2023-03-27 CN CN202320624311.XU patent/CN219531016U/en active Active
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