Heat dissipation structure

Abstract

The utility model provides a heat dissipation structure, which relates to the technical field of transformer heat dissipation and comprises a cold air plate, an air passing plate, an air inlet and outlet mechanism and a telescopic mechanism. The cold air plate is located on one side of the air passing plate, a compressible air inlet and outlet mechanism is arranged on the side, facing the air passing plate, of the cold air plate and provided with a refrigeration cavity, a plurality of air inlet and outlet openings are formed in the side, facing the air passing plate, of the refrigeration cavity, and the air passing plate is provided with ventilation holes communicated with the air inlet and outlet openings. The telescopic mechanism is connected between the cold air plate and the air passing plate and used for driving the air passing plate to reciprocate so as to repeatedly compress the air inlet and outlet mechanism. The heat dissipation structure provided by the utility model has the advantages of high heat dissipation efficiency, convenience for cold air to uniformly flow out on a plane and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer heat dissipation, in particular to a heat dissipation structure. Background Art

[0002] A dry-type transformer refers to a transformer whose core and winding are not immersed in insulating oil. It is widely used in local lighting, high-rise buildings, airports, docks, CNC machinery and equipment, etc. Dry-type transformers are mainly divided into three types: open type, closed type, and cast type. The cooling methods are divided into natural air cooling and forced air cooling.

[0003] For example, the Chinese utility model patent with application number CN202120654097.3 discloses a dry-type transformer. This patent adds anti-loosening clips to make the bolt connection firm and reliable, effectively prevent the bolts from loosening, improve safety, and increase the service life of the transformer. By adding a measuring ruler, the horizontal height of the transformer can be measured regularly and adjusted in time. However, this patent still has the following defects:

[0004] In actual use, the failure to dissipate the temperature in time can easily lead to problems in the operation of the dry-type transformer. The existing heat dissipation method is to use an external cooling device similar to a fan to dissipate the heat and cool the dry-type transformer. However, the airflow in the above method is relatively concentrated and the heat dissipation effect is average.

[0005] Therefore, how to provide a heat dissipation structure with better heat dissipation effect is one of the technical problems that those skilled in the art need to solve. Utility Model Content

[0006] The utility model aims to provide a heat dissipation structure, which has the advantages of high heat dissipation efficiency and facilitates the uniform outflow of cold air on a plane.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] The utility model provides a heat dissipation structure, including a cold air plate, an air passing plate, an air intake and exhaust mechanism and a telescopic mechanism;

[0009] The cold air plate is located on one side of the air inlet plate, and a compressible air inlet and outlet mechanism is provided on the side of the cold air plate facing the air inlet plate, the air inlet and outlet mechanism has a refrigeration cavity, and the side of the refrigeration cavity facing the air inlet plate has a plurality of air inlets and outlets, and the air inlet plate is provided with ventilation holes connected with the air inlets and outlets;

[0010] The telescopic mechanism is connected between the cold air plate and the air passing plate, and is used to drive the air passing plate to move back and forth so as to repeatedly compress the air intake and exhaust mechanism.

[0011] Furthermore, the air intake and exhaust mechanism includes a foldable outer frame, a panel and a refrigeration pipe group. The two ends of the foldable outer frame are respectively connected to the cold air plate and the panel to form the refrigeration cavity. A plurality of air inlets and outlets are opened on the panel, and the refrigeration pipe group extends into the refrigeration cavity.

[0012] Furthermore, the foldable outer frame includes a foldable rubber layer and a fixed frame, two ends of the foldable rubber layer are respectively connected to the cold air plate and the fixed frame, and the panel is mounted on the fixed frame.

[0013] Furthermore, the refrigeration pipe group includes a U-shaped pipe and a connecting pipe group that passes through the foldable outer frame, the U-shaped pipe is installed in the refrigeration cavity, and the connecting pipe group is connected to the U-shaped pipe.

[0014] Furthermore, the U-shaped tubes are configured into two layers along the telescopic direction of the telescopic mechanism, the two layers of the U-shaped tubes are connected, and the connecting tube group is connected to at least one layer of the U-shaped tubes.

[0015] Furthermore, the cold air plate and the air inlet plate are both in a "[" shape, and the air inlet plate is located in the space surrounded by the cold air plate.

[0016] Furthermore, a wind screen is installed at the vent holes of the wind plate.

[0017] Furthermore, the telescopic mechanism is configured in plurality, a fixed end of each of the telescopic mechanisms is connected to the cold air plate, and a movable end of each of the telescopic mechanisms passes through the cold air plate and is connected to the air inlet plate.

[0018] Furthermore, the telescopic mechanisms are configured into two rows, the two rows of telescopic mechanisms are respectively located on both sides of the telescopic mechanisms, and each row includes a plurality of telescopic mechanisms arranged at intervals in a vertical direction.

[0019] Furthermore, the air inlet and outlet are triangular in shape.

[0020] The heat dissipation structure provided by the utility model can produce the following beneficial effects:

[0021] When the above heat dissipation structure is working, the main body of the dry-type transformer can be installed on the side of the air inlet plate away from the cold air plate, and the telescopic mechanism is started. The telescopic mechanism then drives the air inlet plate closer to the cold air plate. At this time, the air intake and exhaust mechanism is squeezed and begins to shrink. During the shrinkage process, the air in the refrigeration chamber quickly dissipates from the air inlet and outlet. After passing through the air inlet and outlet, the airflow smoothly passes through the ventilation holes and finally reaches the main body of the dry-type transformer, and the dry-type transformer body is subjected to wind-blown heat dissipation treatment; after the telescopic mechanism is extended, the outside air enters the refrigeration chamber through the ventilation holes and the air inlet and outlet, and so on. In the above process, the refrigeration chamber has a refrigeration effect, so that the temperature in the refrigeration chamber is relatively low. When the air inlet and exhaust mechanism is squeezed, a cold airflow can flow out of the air intake and exhaust mechanism, and the main body of the dry-type transformer is efficiently and quickly cooled.

[0022] Compared with the prior art, the heat dissipation structure provided by the utility model utilizes a telescopic mechanism to adjust the distance between the air passing plate and the cold air plate, so that the air intake and exhaust mechanism between the two can be evenly squeezed, thereby ensuring the rapid outflow of airflow. The uniform outflow of airflow on the plane can be achieved by designing the positions of the air inlets and outlets and the ventilation holes. At the same time, since the air intake and exhaust mechanism has a refrigeration cavity, the telescopic mechanism can be extended and retracted to produce a cold air blowing effect on the dry-type transformer main body, so as to efficiently dissipate heat from the dry-type transformer main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of the three-dimensional structure of a heat dissipation structure provided by an embodiment of the utility model when used in conjunction with a dry-type transformer;

[0025] Figure 2 A schematic diagram of the three-dimensional structure of a cold air plate, an air intake and exhaust mechanism and a telescopic mechanism provided in an embodiment of the utility model when they cooperate;

[0026] Figure 3 A cross-sectional view of a telescopic machine provided in an embodiment of the utility model;

[0027] Figure 4 A schematic diagram of the three-dimensional structure of an air vent plate provided in an embodiment of the utility model.

[0028] Icons: 1-cold air plate; 2-air inlet plate; 21-ventilation hole; 22-air inlet net; 3-intake and exhaust mechanism; 31-foldable outer frame; 311-foldable rubber layer; 312-fixed frame; 32-panel; 321-air inlet and outlet; 33-refrigeration pipe group; 331-U-shaped pipe; 332-connecting pipe group; 4-telescopic mechanism; 41-fixed end; 42-movable end; 5-dry-type transformer body. DETAILED DESCRIPTION

[0029] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0033] The embodiment of the utility model provides a heat dissipation structure, such as Figure 1 and Figure 2 As shown, it includes a cold air plate 1, an air passing plate 2, an air intake and exhaust mechanism 3 and a telescopic mechanism 4;

[0034] The cold air plate 1 is located on one side of the air passing plate 2. A compressible air intake and exhaust mechanism 3 is provided on the side of the cold air plate 1 facing the air passing plate 2. The air intake and exhaust mechanism 3 has a refrigeration cavity. The side of the refrigeration cavity facing the air passing plate 2 has a plurality of air inlets and outlets 321. The air passing plate 2 is provided with ventilation holes 21 connected with the air inlets and outlets 321.

[0035] The telescopic mechanism 4 is connected between the cold air plate 1 and the air inlet plate 2 , and is used to drive the air inlet plate 2 to move back and forth, so as to repeatedly compress the air inlet and outlet mechanism 3 .

[0036] like Figure 1 and Figure 2 As shown, when in use, the dry-type transformer body 5 can be installed on the side of the air plate 2 away from the cold air plate 1, and the telescopic mechanism 4 is started. The telescopic mechanism 4 then drives the air plate 2 to approach the cold air plate 1 in the horizontal direction, so that the air plate 2 squeezes the air intake and exhaust mechanism 3, and the air intake and exhaust mechanism 3 begins to shrink. During the shrinkage process, the air in the refrigeration cavity is quickly discharged from the air inlet and outlet 321. After passing through the air inlet and outlet 321, the air flow smoothly passes through the ventilation hole 21 and finally reaches the dry-type transformer body 5, and the dry-type transformer body 5 is subjected to wind-blown heat dissipation treatment. After the telescopic mechanism 4 is extended, the outside air can enter the refrigeration cavity through the ventilation hole 21 and the air inlet and outlet 321, waiting for the next discharge, and so on.

[0037] In the above process, the refrigeration cavity has a refrigeration effect, so that the gas entering the refrigeration cavity is quickly cooled down. When the air plate 2 squeezes the air intake and exhaust mechanism 3, a cold air flow can flow out of the air intake and exhaust mechanism 3, and the dry-type transformer body is quickly cooled down with high efficiency.

[0038] In at least one embodiment, the air inlet and outlet 321 are evenly distributed on the entire side of the refrigeration chamber facing the air plate 2, so that the cold air in the refrigeration chamber can flow out evenly over a large area. There can be only one vent 21, and the projection of the vent 21 on the air inlet and exhaust mechanism 3 can cover all the air inlets and outlets 321, ensuring that the cold airflow discharged from each air inlet and outlet 321 can be discharged through the vent 21. Of course, in order to better disperse the airflow, a structure for dispersing the airflow can also be installed at the vent 21. The structure of the air inlet and exhaust mechanism 3 is described in detail below.

[0039] In some embodiments, Figure 2 As shown, the air intake and exhaust mechanism 3 includes a foldable outer frame 31, a panel 32 and a refrigeration pipe group 33. The two ends of the foldable outer frame 31 are respectively connected to the cold air plate 1 and the panel 32 to form a refrigeration cavity. A plurality of air inlet and outlet ports 321 are evenly arranged on the panel 32, and the refrigeration pipe group 33 extends into the refrigeration cavity.

[0040] When the air intake and exhaust mechanism 3 is compressed, the air inside the refrigeration cavity can be squeezed out. When the pressure is lost, the refrigeration cavity is re-intaken and expanded to restore to its original state. After the air intake and exhaust mechanism 3 is compressed, the air inside it will be quickly discharged to form an airflow, which enters the ventilation hole 21 through the air inlet and outlet 321 and finally reaches the dry-type transformer body 5, thereby achieving the purpose of heat dissipation of the dry-type transformer body 5.

[0041] The air inlet and outlet 321 may be a triangular hole, a circular hole, a rectangular hole, etc.

[0042] In at least one embodiment, the air inlet and outlet 321 are triangular holes.

[0043] In some embodiments, Figure 2 As shown, the foldable outer frame 31 includes a foldable rubber layer 311 and a fixed frame 312. The two ends of the foldable rubber layer 311 are fixedly connected to the cold air plate 1 and the fixed frame 312 respectively. The fixed frame 312 can be a rectangular frame, and the panel 32 is installed on the fixed frame 312. The setting of the fixed frame 312 facilitates the connection between the foldable outer frame 31 and the panel 32.

[0044] The foldable outer frame 31 includes a foldable rubber layer 311 to facilitate the expansion and contraction of the foldable outer frame 31 and is not easily damaged after long-term use.

[0045] In some embodiments, Figure 3 As shown, the refrigeration pipe group 33 includes a U-shaped pipe 331 and a connecting pipe group 332 that passes through the foldable outer frame 31 . The U-shaped pipe 331 is installed in the refrigeration cavity, and the connecting pipe group 332 is connected to the U-shaped pipe 331 .

[0046] When in use, a refrigerant medium can be filled into the U-shaped tube 331 through the connecting tube group 332, so that the overall temperature of the U-shaped tube 331 is relatively low. When the airflow encounters the U-shaped tube 331, it will cool down quickly to form a cold airflow, which will be squeezed out, thereby effectively improving the heat dissipation effect of the dry-type transformer body 5.

[0047] The U-shaped tube 331 can increase the length of the refrigerant medium tube filled in the refrigeration cavity, increase the heat exchange area of ​​the air, and enable the air entering the refrigeration cavity to cool down quickly.

[0048] It should be noted that if Figure 2 As shown, there is a certain distance between the U-shaped tube 331 and the connecting tube group 332 and the panel 32, which is greater than the telescopic distance of the telescopic mechanism 4, so that when the air plate 2 squeezes the panel 32, the U-shaped tube 331 and the connecting tube group 332 will not interfere with the panel 32.

[0049] In some embodiments, in order to further increase the heat exchange area between the air and the U-shaped tube 331, the U-shaped tube 331 is configured as two layers along the telescopic direction of the telescopic mechanism 4, and the tops of the two layers of U-shaped tubes 331 are connected. Figure 3 When viewed from the direction of , the bending parts of the two layers of U-shaped tubes 331 are arranged alternately.

[0050] Specifically, the connecting tube set 332 may be in communication with at least one layer of U-shaped tubes 331 .

[0051] The connecting tube group 332 may include an inlet tube and an outlet tube, both of which pass through the foldable outer frame 31. One end of the inlet tube is used to provide refrigerant, and the other end can be connected to any layer of the double-layer U-shaped tube 331. One end of the outlet tube is used to discharge the refrigerant, and the other end can be connected to any layer of the double-layer U-shaped tube 331.

[0052] The structure of the cold air plate 1 is described in detail below:

[0053] In some embodiments, Figure 1 As shown, the cold air plate 1 is in a "[" shape, specifically including a top plate, a side plate and a bottom plate connected in sequence, and the telescopic mechanism 4 is connected to the side plate.

[0054] The cold air plate adopts the above-mentioned arrangement, which makes it easy for the cold air plate 1 to stand on the ground and can ensure the stability of the cold air plate 1 during use.

[0055] The cold air plate 1 can be regarded as an outer shell, which can be placed on the ground or set on the outside of the installed dry-type transformer body 5 according to the scene requirements. The dry-type transformer body 5 can be installed on the cold air plate 1, so that the cold air plate 1 can provide backup support for the dry-type transformer body 5 and reinforce the dry-type transformer body 5.

[0056] The structure of the air passing plate 2 is described in detail below:

[0057] In some embodiments, Figure 1 As shown, the air inlet plate 2 can be in a “[” shape, and the air inlet plate 2 is located in the space surrounded by the cold air plate 1. The above arrangement can make the size of the air inlet plate 2 better match the size of the cold air plate 1.

[0058] The upper and lower end surfaces of the air flow plate 2 can be in contact with the cold air plate 1, and the contact surfaces are provided with lubricating oil to reduce the friction between the two; or in some other embodiments, in order to reduce the friction between the air flow plate 2 and the cold air plate 1, a roller can also be provided at the bottom end of the air flow plate 2, and the air flow plate 2 is in contact with the cold air plate 1 through the roller, thereby converting the sliding friction between the two into rolling friction, effectively reducing the friction between the two.

[0059] In some embodiments, Figure 4As shown, a wind screen 22 is installed at the vent hole of the wind plate 2. When the cold air discharged from the air inlet and outlet 321 passes through the wind screen 22, the wind screen 22 can further disperse the cold air flow, so that the cold air flows out evenly on the plane where the wind screen 22 is located, and can also play a certain filtering effect.

[0060] It should be noted that the projection of the air mesh 22 on the air intake and exhaust mechanism 3 can cover all the air inlets and outlets 321, ensuring that the cold airflow discharged from each air inlet and outlet 321 can be discharged through the air mesh 22. Figure 1 As shown, the air filter 22 may also be arranged opposite to a plurality of dry-type transformer bodies 5 , so that the heat dissipation structure can dissipate heat for the plurality of dry-type transformer bodies 5 at the same time.

[0061] The structure of the telescopic mechanism 4 is described in detail below:

[0062] In some embodiments, Figure 1 As shown, the telescopic mechanism 4 is configured in plurality, the fixed end 41 of each telescopic mechanism 4 is fixedly connected to the cold air plate 1, the movable end 42 of each telescopic mechanism 4 penetrates the cold air plate 1 and is connected to the air inlet plate 2, and the movable end 42 can perform telescopic movement relative to the fixed end 41, thereby driving the air inlet plate 2 to repeatedly squeeze the air inlet and exhaust mechanism 3.

[0063] Specifically, the telescopic mechanism 4 can be a micro cylinder, a micro hydraulic cylinder, etc.

[0064] In some embodiments, the telescopic mechanisms 4 are configured into two rows, the two rows of telescopic mechanisms 4 are respectively located on the left and right sides of the telescopic mechanisms 4 , and each row includes two, three, four or even more telescopic mechanisms 4 arranged vertically at intervals.

[0065] In at least one embodiment, each column includes three telescopic mechanisms 4 spaced apart vertically.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A heat dissipation structure, characterized in that: It comprises a cold air plate (1), an air passing plate (2), an air intake and exhaust mechanism (3) and a telescopic mechanism (4); The cold air plate (1) is located on one side of the air inlet plate (2); a compressible air inlet and outlet mechanism (3) is provided on the side of the cold air plate (1) facing the air inlet plate (2); the air inlet and outlet mechanism (3) has a refrigeration cavity; the refrigeration cavity has a plurality of air inlets and outlets (321) on the side facing the air inlet plate (2); and the air inlet plate (2) is provided with ventilation holes (21) connected to the air inlets and outlets (321); The telescopic mechanism (4) is connected between the cold air plate (1) and the air inlet plate (2), and the telescopic mechanism (4) is used to drive the air inlet plate (2) to move back and forth, so as to repeatedly compress the air intake and exhaust mechanism (3).

2. The heat dissipation structure according to claim 1, characterized in that: The air intake and exhaust mechanism (3) comprises a foldable outer frame (31), a panel (32) and a refrigeration pipe group (33); the two ends of the foldable outer frame (31) are respectively connected to the cold air plate (1) and the panel (32) to form the refrigeration cavity; the panel (32) is provided with a plurality of air inlet and outlet ports (321); and the refrigeration pipe group (33) extends into the refrigeration cavity.

3. The heat dissipation structure according to claim 2, characterized in that: The foldable outer frame (31) comprises a foldable rubber layer (311) and a fixing frame (312); two ends of the foldable rubber layer (311) are respectively connected to the cold air plate (1) and the fixing frame (312); and the panel (32) is mounted on the fixing frame (312).

4. The heat dissipation structure according to claim 2, characterized in that: The refrigeration pipe group (33) comprises a U-shaped pipe (331) and a connecting pipe group (332) that passes through the foldable outer frame (31); the U-shaped pipe (331) is installed in the refrigeration cavity; and the connecting pipe group (332) is connected to the U-shaped pipe (331).

5. The heat dissipation structure according to claim 4, characterized in that: The U-shaped tube (331) is configured into two layers along the telescopic direction of the telescopic mechanism (4); the two layers of the U-shaped tube (331) are connected; and the connecting tube group (332) is connected to at least one layer of the U-shaped tube (331).

6. The heat dissipation structure according to any one of claims 1 to 5, characterized in that: The cold air plate (1) and the air inlet plate (2) are both in a "[" shape, and the air inlet plate (2) is located in the space surrounded by the cold air plate (1).

7. The heat dissipation structure according to any one of claims 1 to 5, characterized in that: An air passing net (22) is installed at the air vent of the air passing plate (2).

8. The heat dissipation structure according to any one of claims 1 to 5, characterized in that: The telescopic mechanism (4) is configured in plurality, the fixed end (41) of each telescopic mechanism (4) is connected to the cold air plate (1), and the movable end (42) of each telescopic mechanism (4) passes through the cold air plate (1) and is connected to the air inlet plate (2).

9. The heat dissipation structure according to claim 8, characterized in that: The telescopic mechanisms (4) are arranged in two rows. The two rows of telescopic mechanisms (4) are respectively located on both sides of the telescopic mechanisms (4). Each row includes a plurality of telescopic mechanisms (4) arranged at intervals in a vertical direction.

10. The heat dissipation structure according to any one of claims 1 to 5, characterized in that: The air inlet and outlet (321) are triangular in shape.

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