Passive air self-cooling shell
By designing a fully sealed, passive air-cooled outer shell, and utilizing a heat pipe heat exchanger to exchange heat with the external air, the problem of heat dissipation and airtightness of electrical equipment is solved, achieving efficient heat dissipation and a compact structure.
Patent Information
- Application Number
- CN202423311413.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2034-12-31
AI Technical Summary
In the existing technology, the fully sealed casing of electrical equipment has difficulty dissipating heat, and the active cooling device is difficult to provide power in harsh environments, which increases the cost and installation and maintenance difficulty, and affects the airtightness.
Design a passive air-cooled housing with a fully sealed structure. The housing has built-in heating elements to form heating and cooling zones. It exchanges heat with the outside air through a heat pipe heat exchanger and uses refrigerant inside the heat pipe for heat dissipation, forming a sealed heat dissipation loop that avoids the need for additional power.
It achieves efficient heat dissipation while ensuring the airtightness and compact structure of the casing, reducing heat dissipation costs and making it suitable for electrical equipment in harsh environments.
Smart Images
Figure CN223899442U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of electric appliance heat dissipation, specifically relates to passive air self-cooling shell. BACKGROUND
[0002] In the power supply system, many air insulation heavy, high heat electric appliance equipment such as dry-type transformer are usually used, when these electric appliance equipment is installed in the harsh environment, the erosion of external environment needs to be prevented, therefore, the fully sealed shell is usually arranged to protect the electric appliance equipment, and the air in the fully sealed shell cannot flow, and heat dissipation is difficult, in the prior art, active cooling device such as air conditioner is arranged in the shell, or the heat dissipation fin is arranged on the shell to realize the heat dissipation of the shell and electric appliance.
[0003] However, only the heat dissipation fin on the shell conducts heat dissipation, and the thickness of the shell plate and the internal air with poor thermal conductivity will directly affect the heat dissipation effect of the internal electric appliance, if the active cooling device is used for heat dissipation, additional power supply needs to be added, which will affect the airtightness of the shell and heat dissipation circuit, and it is not provided with additional power supply under the harsh environment, and the installation and maintenance cost of the heat dissipation system is also increased.
[0004] Therefore, how to effectively improve the heat dissipation effect of the shell and electric appliance, while ensuring the airtightness of the heat dissipation circuit, so that the shell has reliable full sealing has become a problem to be solved in the field. UTILITY MODEL CONTENTS
[0005] In view of the defects of the prior art, the utility model aims at providing a passive air self-cooling shell with good heat dissipation effect and airtight heat dissipation circuit.
[0006] In order to achieve the above-mentioned purpose, the passive air self-cooling shell provided by the utility model is used for heat generating element cooperation, comprising
[0007] The shell is configured to be fully sealed, the heat generating element is hoisted in the shell, so that the heat generating element forms a heat generating area, the upper area of the heat generating element forms a hot area, and the lower area forms a cold area,
[0008] The heat pipe type heat exchanger is arranged on both sides of the shell through a sealing flange, corresponds to the hot area, and is inclinedly distributed to face the cold area, the heat pipe type heat exchanger comprises a plurality of parallel distributed heat circulation pipes, the heat circulation pipe is configured to be annular, filled with refrigerant in the inside, and one end of the heat circulation pipe is built in the shell and corresponds to the hot area to form a hot end, and the other end is exposed to the air outside the shell to form a cold end.
[0009] Furthermore, the outer casing includes a housing and a cover and a chassis respectively disposed at both ends of the housing, wherein the cover and the chassis are respectively configured with a flange sealing structure with the housing.
[0010] Furthermore, the outer casing also includes a hanging plate and a hanging bracket, the hanging plate being connected to the box cover, and the hanging bracket being connected at one end to the hanging plate and at the other end to the heating element.
[0011] Furthermore, the box cover, hanging rails, hanging plates, heating elements, and chassis are configured as an integrated structure.
[0012] Furthermore, the inspection windows and openings on the housing are all configured with flange-sealed structures.
[0013] Furthermore, the heat pipe heat exchanger includes heat dissipation fins that pass through the heat pipe heat exchanger and are connected to the outer wall of the heat circulation pipe.
[0014] Furthermore, the heat pipe heat exchanger includes several layers of staggered heat circulation pipes.
[0015] Furthermore, the heat pipe heat exchanger includes several layers of symmetrically distributed heat circulation pipes.
[0016] Furthermore, a sealing gasket is provided at the connection between the sealing flange and the housing.
[0017] Furthermore, the sealing gasket is made of silicone rubber density pad.
[0018] This utility model provides a passive air-cooled housing. The housing is fully sealed, and the heating element is suspended inside the housing, forming a heating zone above the heating element and a cold zone below it. Simultaneously, a heat pipe heat exchanger is installed on both sides of the housing via sealing flanges, corresponding to the hot zones and inclined towards the cold zones. One end of the heat circulation pipe is built into the housing, forming the hot end, while the other end is exposed to the air outside the housing, forming the cold end. Thus, the heating element inside the housing heats up the air in the heating zone, reducing its density, causing it to rise to the hot zone, and then interact with the air in the hot zone. The hot end of the circulation pipe exchanges heat to cool the air, which then sinks back to the cold zone, forming a sealed first heat dissipation circulation loop inside the shell. Simultaneously, the refrigerant in the heat circulation pipe exchanges heat with the air inside the shell, rises to the cold end along the inclined heat circulation pipe, exchanges heat with the outside air, cools down, and sinks back to the hot end of the heat circulation pipe. This forms a dense second heat dissipation circulation loop in the heat pipe heat exchanger, improving heat dissipation efficiency and the sealing of the heat dissipation loop. Furthermore, it eliminates the need for an additional cold source, effectively improving the structural compactness of the shell, reducing heat dissipation costs, and ensuring the shell's airtightness. Attached Figure Description
[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0020] Figure 1 A schematic diagram of the overall structure of the passive air self-cooling shell provided by this utility model;
[0021] Figure 2 and Figure 3 This is a schematic diagram of the structure of the heat pipe heat exchanger in this utility model;
[0022] Figure 4 and Figure 5 This is a cross-sectional view of the heat pipe heat exchanger in this utility model;
[0023] Figure 6 and Figure 7 This is a schematic diagram of the distribution structure of the heat circulation pipe in this utility model.
[0024] Figure label:
[0025] 100. Outer shell; 110. Box body; 120. Box lid; 130. Base; 140. Hanging plate; 150. Hanging bracket;
[0026] 200. Heat pipe heat exchanger; 210. Sealing flange; 211. Sealing gasket; 220. Heat circulation pipe;
[0027] 300. Heating element;
[0028] 400. First heat dissipation circulation loop; 410. Heat generation zone; 420. Hot zone; 430. Cold zone;
[0029] 500. Second heat dissipation circulation loop; 510. Hot end; 520. Cold end. Detailed Implementation
[0030] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.
[0031] See Figure 1 The image shown is an example of a passive air-cooled housing provided by this utility model.
[0032] As shown in the figure, the passive air-cooled housing in this example, in conjunction with the heating element 300, mainly includes the housing 100 and the heat pipe heat exchanger 200.
[0033] The outer casing 100 is configured to be fully sealed, and the heating element 300 is suspended inside the outer casing 100, so that the heating element 300 forms a heating area 410, the upper area of the heating element 300 forms a hot area 420, and the lower area forms a cold area 430, thereby forming a sealed first heat dissipation circulation loop 400 within the outer casing 100.
[0034] Furthermore, the heat pipe heat exchanger 200 is disposed on both sides of the outer casing 100 via sealing flanges 210, corresponding to the hot zone 420 and inclined towards the cold zone 430. The heat pipe heat exchanger 200 includes several parallel heat circulation pipes 220, which are arranged in annular shape and filled with refrigerant. One end of the heat circulation pipe 220 is built into the outer casing 100 and corresponds to the hot zone 420 to form a hot end 510, while the other end is exposed to the air outside the outer casing 100 to form a cold end 520. This allows the refrigerant in the heat circulation pipe 220 to exchange heat with the air in the outer casing 100 in the hot zone 420, and forms a sealed second heat dissipation circulation loop 500 in the heat circulation pipe 220.
[0035] The outer casing 100 includes a box 110. For example, the box 100 is preferably formed by folding steel plates to form a frame, so as to reduce the number of joints on the periphery of the box 100 and improve the sealing performance of the outer casing 100.
[0036] Furthermore, the outer casing 100 also includes a cover 120 and a chassis 130. The cover 120 and the chassis 130 are respectively disposed at both ends of the casing 110 and are configured with the casing 110 to form a flange sealing structure, so that the outer casing 100 can be configured to be fully sealed, which can effectively protect the heating element 300 inside the outer casing 100.
[0037] As an example, the cover 120 is configured as a roof-type structure, and the chassis 130 is also equipped with reinforcing steel bars, so that the cover 120 and the chassis 130 work together to improve the structural stability of the outer shell 100.
[0038] To ensure a stable connection between the heating element 300 and the housing 100, the housing 100 also includes a hanging plate 140 and a hanging bracket 150. The hanging plate 140 is connected to the housing cover 120, and one end of the hanging bracket 150 is connected to the hanging plate 140, while the other end is connected to the heating element 300. This allows the heating element 300 to be hoisted as a whole within the housing 100, and the bottom of the heating element 300 is connected to the chassis 130 to improve the stability of the connection between the heating element 300 and the housing 100.
[0039] Preferably, the cover 120, hanging plate 140, hanging rail 150, heating element 300 and chassis 130 are configured as an integrated structure, which can improve the connection stability and ensure the sealing of the outer shell 100.
[0040] Here, the inspection windows and openings on the housing 100 are all configured with flange sealing structures, and the wiring inside the housing 100 is connected to the fixed sealing joint flange through stainless steel waterproof cable pipes to ensure that the housing 100 can remain sealed to the external environment.
[0041] This constitutes a fully sealed outer shell 100, which can effectively protect the heating element 300 stably built into the outer shell 100. At the same time, inside the outer shell 100, the heating element 300 forms a heating zone 410. The heat dissipation of the heating element 300 heats the air in the heating zone 410, causing the air temperature to rise and the density to decrease, so that the air rises above the heating element 300, thus forming a hot zone 420 in the area above the heating element 300. Correspondingly, after the air dissipates heat and the temperature decreases, it sinks to the area below the heating element 300, thus forming a cold zone 430 in the area below the heating element 300. Thus, the air inside the outer shell 100 forms the first heat dissipation circulation loop 400, which rises from the heating zone 410 to the hot zone 420 and then sinks to the cold zone 430.
[0042] Since the outer casing 100 is fully sealed, it can seal the first heat dissipation circulation loop 400. In order to improve the heat dissipation effect of the heating element 300, heat pipe heat exchangers 200 are provided on both sides of the outer casing 100. The air inside the outer casing 100 can cooperate with the heat pipe heat exchangers 200 in the hot zone 420 to quickly exchange heat, cool down and sink to the cold zone 430, thereby improving the heat dissipation circulation efficiency of the first heat dissipation circulation loop 400 and improving the heat dissipation effect of the heating element 300.
[0043] Combination Figures 1 to 3 Specifically, the heat pipe heat exchanger 200 is installed on both sides of the housing 100 via sealing flanges 210, and a sealing gasket 211 is provided at the connection between the sealing flanges 210 and the housing 100, so that the air inside the housing 100 will not leak at the connection between the heat pipe heat exchanger 200 and the housing 100, thus ensuring the complete sealing of the housing 100.
[0044] Here, the sealing gasket 211 is preferably made of a silicone rubber density gasket with good high temperature resistance and weather resistance, so as to ensure that the sealing gasket 211 can effectively seal in high temperature and outdoor environments, improve the service life of the sealing gasket 21, and ensure the complete sealing of the housing 100.
[0045] Furthermore, the heat pipe heat exchanger 200 corresponds to the hot zone 420 and is inclined towards the cold zone 430. Preferably, the heat pipe heat exchanger 200 is inclined towards the cold zone 430 at an angle of 10°, so that the air in the hot zone 420 can quickly contact and exchange heat with the heat pipe heat exchanger 200, and the refrigerant heated by heat exchange in the heat pipe heat exchanger 200 can rise along the inclined heat pipe heat exchanger 200 to exchange heat with the outside air and cool down.
[0046] CombinationFigure 4 and Figure 5 Furthermore, the heat pipe heat exchanger 200 includes several parallel heat circulation pipes 220, which are arranged in a ring shape and filled with refrigerant. One end of the heat circulation pipe 220 is built into the upper region inside the outer casing 100, corresponding to the hot zone 420 to form a hot end 510, and the other end is exposed to the air outside the outer casing 100 to form a cold end 520. As a result, the air in the heating zone 410 inside the outer casing 100 is heated and rises to the hot zone 420. The air can exchange heat with the refrigerant in the heat circulation pipe 220 at the hot end 510, so that the air in the hot zone 420 is cooled down quickly and sinks to the cold zone 430, thereby improving the heat dissipation circulation efficiency of the first heat dissipation circulation loop 400.
[0047] Simultaneously, the refrigerant at the hot end 510 of the heat circulation pipe 220 heats up and evaporates. Since the heat pipe heat exchanger 200 is tilted towards the cold zone 430, the refrigerant can evaporate and rise to the cold end 520 within the heat circulation pipe 220, where it exchanges heat with the outside air, causing the refrigerant to condense and return to the hot end 510 along the heat circulation pipe 220. Thus, within the heat circulation pipe 220, the refrigerant evaporates from the hot end 510 to the cold end 520, and then condenses back to the hot end 510, forming a sealed second heat dissipation circulation loop 500.
[0048] Furthermore, the heat pipe heat exchanger 200 is tilted towards the cold zone 430, which ensures that the refrigerant can return to the hot zone 510 under gravity after condensation at the cold end 520, thereby improving the effective contact heat exchange between the air inside the outer casing 100 and the heat pipe heat exchanger 200, and thus improving the heat dissipation effect.
[0049] The heat pipes 220 thus formed are arranged in parallel in the heat pipe heat exchanger 200, which can work together to increase the heat dissipation contact area between the heat pipe heat exchanger 200 and the air inside the outer shell 100, thereby improving the heat dissipation effect.
[0050] Combination Figure 6 In some embodiments, the heat pipe heat exchanger 200 includes several layers of symmetrically distributed heat circulation pipes 220, making the heat pipe heat exchanger 200 have a compact structure.
[0051] Combination Figure 7 In some embodiments, the heat pipe heat exchanger 200 includes several layers of staggered heat circulation pipes 220 to reduce the gap between adjacent heat circulation pipes 220, thereby increasing the heat dissipation contact area between the heat circulation pipes 220 and the air inside the housing 100.
[0052] Combination Figure 3 , Figure 6 and Figure 7In addition, the heat pipe heat exchanger 200 includes heat dissipation fins 230, which are distributed around the heat circulation pipe 220, pass through the heat pipe heat exchanger 200, and are connected to the outer wall of the heat circulation pipe 200 to improve the heat dissipation effect of the heat circulation pipe 220 and effectively improve the heat dissipation circulation efficiency of the second heat dissipation circulation loop 500.
[0053] The resulting outer casing 100 can cooperate with the heat pipe heat exchanger 200, so that the first heat dissipation circulation loop 400 inside the outer casing 100 and the second heat dissipation circulation loop 500 inside the heat pipe heat exchanger 200 are sealed respectively, improving the sealing performance of the heat dissipation loops, and operating synchronously and cooperating with each other. The second heat dissipation circulation loop 500 improves the heat dissipation efficiency of the first heat dissipation circulation loop 400, thereby improving the heat dissipation effect of the heating element 300.
[0054] Meanwhile, the heat exchange medium of the hot end 510 and cold end 520 of the first heat dissipation circulation loop 400 is composed of air inside the shell 100 and air outside the shell 100, respectively. There is no need to set up a cold source inside the shell 100, so as to ensure the structural compactness of the shell 100 and reduce heat dissipation costs.
[0055] The following example illustrates the working process of this utility model in a specific application. It should be noted that the content described here is only a specific application example of this solution and does not constitute a limitation on this solution.
[0056] Combination Figure 1 and Figure 2 The heating element 300 inside the outer casing 100 dissipates heat, causing the air in the heating zone 410 to heat up, decrease in density, and rise to the heating zone 420 above the heating element 300.
[0057] At this time, the air in the hot zone 420 can exchange heat with the hot end 510 of several heat circulation pipes 220 in the heat pipe heat exchanger 200. After the air in the hot zone 420 exchanges heat with the refrigerant in the hot end 510, the air in the hot zone 420 cools down and sinks to the cold zone 430 below the heating element 300, and enters the first heat dissipation circulation loop 400 for circulation.
[0058] Simultaneously, after the air in the hot zone 420 exchanges heat with the refrigerant in the hot end 510, the refrigerant in the hot end 510 heats up and evaporates, rising along the inclined heat circulation pipe 220 to the cold end 520, where it exchanges heat with the outside air, causing the refrigerant to condense. Under the action of gravity, it returns to the hot end 510 along the heat circulation pipe 220, entering the second heat dissipation circulation loop 400 for circulation, and once again exchanges heat with the air in the hot zone 420 to improve the heat dissipation effect of the heating element 300.
[0059] The passive air-cooled housing provided by this utility model, through the cooperation of housing 100 and heat pipe heat exchanger 200 with heating element 300, eliminates the need for a cold source, effectively improves heat dissipation, and ensures the airtightness of housing 100.
[0060] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A passive air-cooled housing for use with a heating element, characterized in that, include The housing is configured to be fully sealed, and the heating element is suspended inside the housing, such that the heating element forms a heating zone, with the upper region of the heating element forming a hot zone and the lower region forming a cold zone. A heat pipe heat exchanger is provided on both sides of the outer casing via sealing flanges, corresponding to the hot zone and inclined towards the cold zone. The heat pipe heat exchanger includes several parallel heat circulation pipes, which are arranged in annular shape and filled with refrigerant. One end of each heat circulation pipe is built into the outer casing and corresponds to the hot zone to form a hot end, while the other end is exposed to the air outside the outer casing to form a cold end.
2. The passive air-cooled housing according to claim 1, characterized in that, The outer casing includes a box body and a box cover and a chassis respectively disposed at both ends of the box body, wherein the box cover and the chassis are respectively configured with a flange sealing structure with the box body.
3. The passive air-cooled housing according to claim 2, characterized in that, The outer casing also includes a hanging plate and a hanging bracket. The hanging plate is connected to the box cover, and one end of the hanging bracket is connected to the hanging plate, while the other end is connected to the heating element.
4. The passive air-cooled housing according to claim 3, characterized in that, The box cover, hanging rails, hanging plates, heating elements, and chassis are configured as an integrated structure.
5. The passive air-cooled housing according to claim 4, characterized in that, The inspection windows and openings on the outer casing are all configured with flange sealing structures.
6. The passive air-cooled housing according to claim 1, characterized in that, The heat pipe heat exchanger includes heat dissipation fins that pass through the heat pipe heat exchanger and are connected to the outer wall of the heat circulation pipe.
7. The passive air-cooled housing according to claim 6, characterized in that, The heat pipe heat exchanger comprises several layers of staggered heat circulation pipes.
8. The passive air-cooled housing according to claim 6, characterized in that, The heat pipe heat exchanger comprises several layers of symmetrically distributed heat circulation pipes.
9. The passive air-cooled housing according to claim 1, characterized in that, A sealing gasket is provided at the connection between the sealing flange and the outer casing.
10. The passive air-cooled housing according to claim 9, characterized in that, The sealing gasket is made of silicone rubber density pad.