Electric control box heat dissipation structure and outdoor unit
By designing the curved ventilation channel structure of the electronic control box, the problem of circuit short circuit caused by the reduction of the high-temperature environment and the entry of water is solved, and effective heat dissipation and waterproofing effects are achieved.
Patent Information
- Application Number
- CN202420511051.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-15
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-03-15
AI Technical Summary
The components of conventional electronic control boxes have reduced their lifespans due to high temperature environments, increasing costs, and there is a risk of circuit short-circuiting due to water entering the electronic control box.
A heat dissipation structure of the electronic control box is designed, including the box body and the ventilation channel. The air inlet and air outlet of the ventilation channel connect the electrical control chamber and the fan chamber respectively. The ventilation channel is curved to prevent water from entering, achieving effective heat dissipation and waterproofing.
By accelerating air circulation, reducing the temperature in the electronic control chamber, extending the life of components, reducing fire risks, and preventing circuit short circuits caused by water entry.
Smart Images
Figure CN222465118U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air-conditioning equipment, in particular to a heat dissipation structure of an electric control box and an outdoor unit. Background Art
[0002] The control board of a conventional vertical electric control box is equipped with heat-generating components such as capacitors, sampling resistors and reactors. The hot air generated by these components will go upward and gather at the top of the control board, causing the components on the top to work in a high-temperature environment. Coupled with the heat generated by the components themselves, the operating temperature of the components can even reach around 150°C. Therefore, it is necessary to select components that can withstand higher temperatures, which increases costs. At the same time, long-term operation of components in a high-temperature environment will cause material aging, reduced component life, and damage, ultimately affecting product quality and service life. In severe cases, it may cause a fire. Some electric control boxes are equipped with heat dissipation holes, but there is a risk of water entering the electric control box, which in turn will cause the risk of a short circuit. Utility Model Content
[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a heat dissipation structure of an electric control box, which can effectively dissipate heat and waterproof the inside of the electric control box and various components.
[0004] The utility model also provides an outdoor unit with the above electric control box heat dissipation structure.
[0005] According to an embodiment of the first aspect of the utility model, a heat dissipation structure of an electric control box includes a box body, a partition for separating a fan cavity and an electric control cavity from left to right is provided in the body of an outdoor unit, the box body is arranged on the partition, a ventilation channel is provided on the top of the box body, an air inlet and an air outlet of the ventilation channel are connected to the electric control cavity and the fan cavity respectively, the ventilation channel is curved, or the projections of the air inlet and the air outlet in the left and right directions are staggered with each other, so that the inner wall of the ventilation channel can prevent water in the fan cavity from entering the electric control cavity through the ventilation channel.
[0006] At least the following beneficial effects are achieved:
[0007] When the fan of the fan cavity rotates, negative pressure will be formed in the fan cavity. Since the air inlet and the air outlet are connected to the electric control cavity and the fan cavity respectively, the air in the electric control cavity is discharged faster through the ventilation channel, and the heat in the electric control cavity is taken away by the air, which reduces the temperature in the electric control cavity, is conducive to heat dissipation of the control board and the components thereon, improves the performance and life of the control board and the components thereon, and reduces the risk of fire. And because the ventilation channel is curved, the inner wall of the ventilation channel can prevent water in the fan cavity from entering the electric control cavity through the ventilation channel, reducing the risk of circuit short circuit caused by water.
[0008] According to some embodiments of the present invention, the ventilation channel is V-shaped.
[0009] According to some embodiments of the utility model, it also includes a plurality of V-shaped plates, which are distributed on the top of the box body along the front-to-back direction, and the top of the box body, two adjacent V-shaped plates and the top wall of the outdoor unit form the ventilation channel.
[0010] According to some embodiments of the utility model, the V-shaped plate includes a first inclined portion and a second inclined portion connected to each other, the first inclined portion and the second inclined portion form an angle, the connection point between one end of the first inclined portion and one end of the second inclined portion is a vertex, the first inclined portion is close to the fan cavity, the other end of the first inclined portion is a bottom point, and among the two adjacent V-shaped plates, the bottom point of the front V-shaped plate is at the rear side of the vertex of the rear V-shaped plate, or the bottom point of the rear V-shaped plate is at the front side of the vertex of the front V-shaped plate.
[0011] According to some embodiments of the present invention, a partial area or the entire area of the upper surface of the box body is inclined downward toward one side of the fan cavity.
[0012] According to some embodiments of the present invention, the inclination angle of the entire area of the upper surface of the box body is α, 6°≤α≤30°.
[0013] According to some embodiments of the utility model, a waterproof sealing strip is provided between the plurality of V-shaped plates and the top wall of the outdoor unit.
[0014] According to some embodiments of the present invention, the ventilation channel is arranged obliquely and the air outlet is lower than the air inlet.
[0015] The outdoor unit according to the second embodiment of the utility model comprises a body and an electric control box heat dissipation structure according to the first embodiment of the utility model.
[0016] At least the following beneficial effects are achieved:
[0017] The outdoor unit has all the beneficial effects brought by the heat dissipation structure of the electric control box in the above embodiment, which will not be described again here.
[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:
[0020] Figure 1This is a structural schematic diagram of a heat dissipation structure of an electric control box according to an embodiment of the utility model;
[0021] Figure 2 This is a schematic diagram of the exploded structure of an outdoor unit according to an embodiment of the utility model;
[0022] Figure 3 This is a schematic diagram of a top view of a heat dissipation structure of an electric control box according to an embodiment of the utility model;
[0023] Figure 4 This is a side view structural diagram of a heat dissipation structure of an electric control box according to an embodiment of the utility model;
[0024] Figure Number:
[0025] Box body 100 , machine body 200 , partition plate 210 , top wall 220 , ventilation channel 300 , air inlet 310 , air outlet 320 , V-shaped plate 400 , apex 410 , bottom point 420 , waterproof sealing strip 500 . DETAILED DESCRIPTION
[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0027] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0028] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.
[0030] Reference Figures 1 to 3The utility model discloses a heat dissipation structure of an electric control box, including a box body 100. A partition 210 for separating a fan cavity and an electric control cavity from left to right is arranged in the body 200 of the outdoor unit. The box body 100 is arranged on the partition 210. A ventilation channel 300 is arranged on the top of the box body 100. An air inlet 310 and an air outlet 320 of the ventilation channel 300 are connected to the electric control cavity and the fan cavity respectively. The ventilation channel 300 is curved or the projections of the air inlet 310 and the air outlet 320 in the left and right directions are staggered, so that the inner wall of the ventilation channel 300 can prevent water in the fan cavity from entering the electric control cavity through the ventilation channel 300.
[0031] When the fan of the fan cavity rotates, a negative pressure will be formed in the fan cavity. Since the air inlet 310 and the air outlet 320 are connected to the electric control cavity and the fan cavity respectively, the air in the electric control cavity will be discharged faster through the ventilation channel 300, and the heat in the electric control cavity will be taken away by the air, which will reduce the temperature in the electric control cavity, which is conducive to heat dissipation of the control board and the components thereon, improve the performance and life of the control board and the components thereon, and reduce the risk of fire. And because the ventilation channel 300 is curved, the inner wall of the ventilation channel 300 can prevent the water in the fan cavity from entering the electric control cavity through the ventilation channel 300, reducing the risk of circuit short circuit caused by water. That is, the heat dissipation structure of the electric control box can effectively dissipate heat and waterproof the inside of the electric control box and various components.
[0032] The ventilation channel 300 is curved, and air can pass through the ventilation channel 300 . Water does not turn when splashing, so the water will be blocked by the inner wall of the ventilation channel 300 and cannot pass through the ventilation channel 300 .
[0033] In some embodiments, the ventilation channel 300 is V-shaped. The V-shaped structure is simple, which is convenient for forming and manufacturing the side wall of the ventilation channel 300. The ventilation channel 300 has fewer turning or bending areas, which reduces the influence of the turning or bending on the wind flow speed. Of course, the ventilation channel 300 can also be S-shaped.
[0034] See also Figure 1 and Figure 3 In some embodiments, the heat dissipation structure of the electric control box further includes a plurality of V-shaped plates 400, which are distributed on the top of the box body 100 along the front-to-back direction. The top of the box body 100, two adjacent V-shaped plates 400 and the top wall 220 of the outdoor unit form a ventilation channel 300. The heat dissipation structure of the electric control box has fewer components, and the structure of each component is simple, which is easy to process.
[0035] In some embodiments, the V-shaped plate 400 includes a first inclined portion and a second inclined portion connected to each other, the first inclined portion and the second inclined portion are at an angle, the connection point between one end of the first inclined portion and one end of the second inclined portion is a vertex 410, the first inclined portion is close to the fan cavity, the other end of the first inclined portion is a bottom point 420, and in two adjacent V-shaped plates 400, the bottom point 420 of the front V-shaped plate 400 is located at the rear side of the vertex 410 of the rear V-shaped plate 400, or the bottom point 420 of the rear V-shaped plate 400 is located at the front side of the vertex 410 of the front V-shaped plate 400. The arrangement of the V-shaped plate 400 makes the ventilation channel 300 V-shaped, and the positional relationship between the vertex 410 and the bottom point 420 ensures that water can be blocked by the first inclined portion.
[0036] See also Figure 4 In some embodiments, part or all of the upper surface of the box body 100 is inclined downward toward one side of the fan cavity. The upper surface of the box body 100 is the bottom wall of the ventilation channel 300. When water splashes on the inner wall of the ventilation channel 300, under the action of gravity, the water will fall on the upper surface of the box body 100 and flow to one side of the fan cavity, thereby preventing water from flowing into the electric control cavity.
[0037] In some embodiments, the entire area of the upper surface of the box body 100 has an inclination angle of α, 6°≤α≤30°, which is conducive to accelerating the flow of water into the fan cavity. The inclination angle α should not be too small, otherwise it will be unfavorable for water to flow to the fan cavity. The inclination angle α should not be too large, otherwise it will cause the inner cavity of the box body 100 to be too small, which is unfavorable for the arrangement of the control board and the components thereon.
[0038] See also Figure 2 In some embodiments, a waterproof sealing strip 500 is provided between the plurality of V-shaped plates 400 and the top wall 220 of the outdoor unit to prevent water from penetrating into the electric control cavity from between the V-shaped plates 400 and the top wall 220 of the outdoor unit.
[0039] See also Figure 4 In some embodiments, the ventilation channel 300 is tilted and the air outlet 320 is lower than the air inlet 310, and water flows to the side of the fan cavity under the action of gravity. The tilt angle of a part or all of the ventilation channel 300 is α, 6°≤α≤30°. The tilt angle α should not be too small, otherwise it will be unfavorable for water to flow to the side of the fan cavity. The tilt angle α should not be too large, otherwise it will cause the inner cavity of the box body 100 to be too small, which is not conducive to the arrangement of the control board and the components thereon.
[0040] See also Figure 2 The utility model also discloses an outdoor unit, including a body 200 and the above-mentioned electric control box heat dissipation structure.
[0041] It can be understood that a notch is provided on the upper end surface of the partition plate 210 , the box body 100 is disposed in the notch, and the box body 100 is connected to the side wall of the notch.
[0042] The outdoor unit has all the beneficial effects brought by the heat dissipation structure of the electric control box in the above embodiment, which will not be described again here.
[0043] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0044] Of course, the present invention is not limited to the above-mentioned embodiments, and technicians familiar with the field may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.
Claims
1. A heat dissipation structure of an electric control box, characterized in that: include: A box body, a partition for separating the fan cavity and the electric control cavity from left to right is provided in the body of the outdoor unit, the box body is arranged on the partition, a ventilation channel is provided on the top of the box body, the air inlet and the air outlet of the ventilation channel are respectively connected to the electric control cavity and the fan cavity, the ventilation channel is curved, or the projections of the air inlet and the air outlet in the left and right directions are staggered with each other, so that the inner wall of the ventilation channel can prevent the water in the fan cavity from entering the electric control cavity through the ventilation channel.
2. The heat dissipation structure of the electric control box according to claim 1, characterized in that: The ventilation channel is V-shaped.
3. The heat dissipation structure of the electric control box according to claim 2, characterized in that: It also includes a plurality of V-shaped plates, which are distributed on the top of the box body along the front-to-back direction. The top of the box body, two adjacent V-shaped plates and the top wall of the outdoor unit form the ventilation channel.
4. The heat dissipation structure of the electric control box according to claim 3, characterized in that: The V-shaped plate includes a first inclined portion and a second inclined portion that are connected, the first inclined portion and the second inclined portion form an angle, the connection point between one end of the first inclined portion and one end of the second inclined portion is a vertex, the first inclined portion is close to the fan cavity, the other end of the first inclined portion is a bottom point, and of the two adjacent V-shaped plates, the bottom point of the front V-shaped plate is located at the rear side of the vertex of the rear V-shaped plate, or the bottom point of the rear V-shaped plate is located at the front side of the vertex of the front V-shaped plate.
5. The heat dissipation structure of the electric control box according to claim 3, characterized in that: A partial area or the entire area of the upper surface of the box body is inclined downward toward one side of the fan cavity.
6. The heat dissipation structure of the electric control box according to claim 5, characterized in that: The inclination angle of the entire area of the upper surface of the box body is α, 6°≤α≤30°.
7. The heat dissipation structure of an electric control box according to claim 3, characterized in that: A waterproof sealing strip is arranged between the plurality of V-shaped plates and the top wall of the outdoor unit.
8. The heat dissipation structure of an electric control box according to claim 1, characterized in that: The ventilation channel is arranged obliquely and the air outlet is lower than the air inlet.
9. An outdoor unit, characterized in that: It comprises a machine body and the heat dissipation structure of the electric control box according to any one of claims 1 to 8.