Heat dissipation structure and box-type substation

Abstract

The utility model relates to the technical field of transformer heat dissipation, especially relates to a heat dissipation structure and box -type substation, heat dissipation structure is applied to box -type substation, and heat exchange device is embedded in the box door, and heat exchange device is opened with first air inlet and first air outlet, and the inside of power equipment cabinet is provided with the air inlet cavity and air outlet cavity of up and down intercommunication along vertical direction, and the position of air inlet cavity and air outlet cavity intercommunication is located the side away from the box door, the side wall of power equipment cabinet is opened with second air inlet and second air outlet to the box door, first air inlet second air inlet air inlet cavity air outlet cavity second air outlet and first air outlet intercommunication between form first heat dissipation air duct. The heat dissipation structure realizes the guidance to the air flow path through the formation first heat dissipation air duct and second heat dissipation air duct, and the air flow path is longer, effectively improves the heat dissipation effect, and solves the problem that the heat dissipation effect of the existing heat dissipation structure for box -type substation is poor.

Description

Technical Field

[0001] This utility model relates to the technical field of transformer heat dissipation, and in particular to a heat dissipation structure and a prefabricated substation. Background Technology

[0002] A prefabricated substation (referred to as a "prefabricated substation") includes a low-voltage compartment, a transformer compartment, and a medium-voltage compartment. The interior of the prefabricated substation integrates key electrical equipment such as high-voltage switchgear, transformers, and low-voltage distribution devices. These devices generate a large amount of heat during operation. High temperatures can accelerate the aging of electrical equipment, cause performance degradation, and increase the risk of failure. Therefore, heat dissipation inside the prefabricated substation and temperature control within a safe range are particularly important. However, current heat dissipation structures for prefabricated substations commonly use fans to directly supply air to the interior, which has the problem of poor heat dissipation efficiency. Utility Model Content

[0003] The main purpose of this invention is to provide a heat dissipation structure that guides the airflow path by forming a first heat dissipation duct and a second heat dissipation duct. The airflow path is longer, which effectively improves the heat dissipation effect and solves the problem of poor heat dissipation effect of existing heat dissipation structures for transformer substations.

[0004] Another objective of this invention is to provide a prefabricated substation with good heat dissipation.

[0005] To achieve the above objectives, this utility model proposes a heat dissipation structure applied to a prefabricated substation. The prefabricated substation includes a enclosure with a door. The heat dissipation structure includes a heat exchange device and a power equipment cabinet. The heat exchange device is embedded in the door and has a first air inlet and a first air outlet for air circulation between the inside and outside of the enclosure. The power equipment cabinet is connected to the enclosure, and its interior has a vertically oriented air inlet chamber and an air outlet chamber. The air inlet and air outlet are vertically connected, and the connection between the air inlet and air outlet is located on the side away from the cabinet door. The side wall of the power equipment cabinet facing the cabinet door has a second air inlet and a second air outlet. The second air inlet is corresponding to the first air inlet and the air inlet, and the second air outlet is corresponding to the first air outlet and the air outlet. The first air inlet, the second air inlet, the air inlet, the air outlet, the second air outlet, and the first air outlet are interconnected to form a first heat dissipation duct.

[0006] Optionally, the heat exchange device includes a device body, an inlet fan, and an outlet fan. The first air inlet and the first air outlet are both located on the device body. The inlet fan is installed at the first air inlet, and the outlet fan is installed at the first air outlet.

[0007] Optionally, the air outlet cavity includes a first chamber and a second chamber connected horizontally, with the first chamber located on the side of the second chamber away from the door. The air inlet cavity is vertically connected to the first chamber. The heat dissipation structure also includes a busbar and a busbar fan. The busbar is located near the first chamber and is connected to the first chamber front to back. The busbar is also connected to the air inlet cavity front to back. A third air outlet is provided on the side wall of the busbar facing the door, and the busbar fan is installed at the third air outlet. The first air inlet, the second air inlet, the air inlet cavity, the first chamber, the busbar, the third air outlet, and the first air outlet are interconnected to form a second heat dissipation duct.

[0008] Optionally, a partition is provided inside the air inlet cavity, which divides the air inlet cavity into a third chamber and a fourth chamber arranged from bottom to top. The second air inlet is located at the position of the third chamber. The fourth chamber is vertically connected to the first chamber and is front-to-back connected to the busbar. A second wiring port is provided at the end of the partition away from the box door. The partition has multiple through holes for air circulation, and the multiple through holes are spaced apart along the length of the partition.

[0009] Optionally, there are two power equipment cabinets, the busbar trunking is located between the two power equipment cabinets, and both ends of the busbar trunking are respectively connected to the two power equipment cabinets; there are two heat exchange devices, and the heat exchange devices and the power equipment cabinets are arranged in a one-to-one correspondence.

[0010] Optionally, the heat dissipation structure further includes an air guide shroud, which is fixedly connected to the end of the heat exchanger away from the power equipment cabinet; and the opening of the air guide shroud faces the horizontal ground; there are two air guide shrouds, which are respectively disposed at the first air inlet and the first air outlet, and the two air guide shrouds are respectively connected to the first air inlet and the first air outlet.

[0011] This utility model also proposes a prefabricated substation, including a heat dissipation structure as described in any of the above claims. The interior of the prefabricated box is provided with a low-voltage chamber, a transformer chamber, and a medium-voltage chamber arranged sequentially along the length direction. The low-voltage chamber, the transformer chamber, and the medium-voltage chamber are separated by partition walls. The box door is located on the side of the low-voltage chamber away from the transformer chamber, and the power equipment cabinet is located in the low-voltage chamber.

[0012] Optionally, the prefabricated substation further includes an indoor temperature sensor, an outdoor temperature sensor, and a control circuit board; the indoor temperature sensor, the outdoor temperature sensor, and the control circuit board are electrically connected, and the control circuit board is electrically connected to the heat exchange device.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] By embedding heat exchange devices in the enclosure door and installing power equipment cabinets and busbar trunking inside the enclosure, a first and a second heat dissipation air duct are formed. Power equipment that easily generates a lot of heat during operation is installed along the paths of the first and second heat dissipation air ducts respectively. The first and second heat dissipation air ducts can guide the airflow path, allowing cool air to flow along the first or second heat dissipation air duct during heat dissipation. The longer flow path effectively improves the heat dissipation effect, thus solving the problem of poor heat dissipation effect of existing box-type substation heat dissipation structures. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a prefabricated substation (including a box and a heat dissipation structure) according to an embodiment of the present invention (wherein, only the internal structure of the box is shown).

[0016] Figure 2 This is a schematic diagram of the heat exchange device of the housing and heat dissipation structure according to an embodiment of the present invention (wherein, only the internal structure of the low-pressure chamber is shown in the housing).

[0017] Figure 3 A schematic diagram of the heat dissipation structure of a power equipment cabinet and busbar trunking according to an embodiment of the present utility model;

[0018] Figure 4 This is a perspective sectional view of the enclosure and heat dissipation structure according to an embodiment of the present invention (wherein, only the internal structure of the enclosure, power equipment cabinet and busbar trunking is shown).

[0019] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0020] Figure 6This is a schematic diagram of the airflow direction of the first heat dissipation duct of a heat dissipation structure according to an embodiment of the present invention.

[0021] Figure 7 This is a schematic diagram of the internal structure of a power equipment cabinet and busbar trunking, representing an embodiment of the heat dissipation structure of this utility model.

[0022] Figure 8 This is a schematic diagram of the airflow direction of a portion of the second heat dissipation duct of a heat dissipation structure according to an embodiment of the present invention (only the airflow direction diagrams at the third chamber, fourth chamber, first chamber and busbar groove in the second heat dissipation duct are shown).

[0023] Figure 9 This is a schematic diagram of the heat dissipation structure of the partition in one embodiment of the present invention.

[0024] In the attached diagram: 1. Enclosure; 11. Enclosure door; 12. Low-voltage chamber; 13. Transformer chamber; 14. Medium-voltage chamber; 15. Partition wall; 2. Heat exchange device; 21. First air inlet; 22. First air outlet; 23. Device body; 3. Power equipment cabinet; 31. Air inlet cavity; 311. Third chamber; 312. Fourth chamber; 32. Air outlet cavity; 321. First chamber; 322. Second chamber; 33. Second air inlet; 34. Second air outlet; 35. First wiring port; 36. Partition plate; 361. Second wiring port; 362. Through hole; 4. Busbar trunking; 41. Third air outlet; 42. First through-hole; 43. Second through-hole; 5. Air guide hood. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a fixed connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal connection of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; taking "A and / or B" as an example, it includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] To resolve the above technical issues, please refer to [link / reference]. Figures 1 to 3 This utility model proposes a heat dissipation structure for use in a prefabricated substation. The prefabricated substation includes a box body 1, which is provided with a box door 11. The heat dissipation structure includes a heat exchange device 2 and an electrical equipment cabinet 3.

[0030] The heat exchange device 2 is embedded in the box door 11. The heat exchange device 2 has a first air inlet 21 and a first air outlet 22. The first air inlet 21 and the first air outlet 22 are used to allow air to circulate between the inside of the box 1 and the outside of the box 1.

[0031] Please see Figures 3 to 5 The power equipment cabinet 3 is connected inside the box 1. The interior of the power equipment cabinet 3 is provided with an air inlet 31 and an air outlet 32 ​​in a vertical direction. The air inlet 31 and the air outlet 32 ​​are connected vertically, and the position where the air inlet 31 and the air outlet 32 ​​are connected is located on the side away from the box door 11.

[0032] The power equipment cabinet 3 has a second air inlet 33 and a second air outlet 34 on the side wall facing the cabinet door 11. The second air inlet 33 is corresponding to the first air inlet 21 and the air inlet cavity 31, and the second air outlet 34 is corresponding to the first air outlet 22 and the air outlet cavity 32.

[0033] Please see Figure 6 The first air inlet 21, the second air inlet 33, the air inlet cavity 31, the air outlet cavity 32, the second air outlet 34 and the first air outlet 22 are interconnected to form a first heat dissipation air duct.

[0034] Please see Figure 1 It should be noted that the heat dissipation structure of this utility model is applied in a prefabricated substation. The interior of the prefabricated box 1 is sequentially arranged along its length as a low-voltage chamber 12, a transformer chamber 13, and a medium-voltage chamber 14. These chambers are separated by partition walls 15, which have connection ports for interconnecting various electrical equipment. It should also be noted that in the embodiments of this utility model, the electrical equipment cabinet 3 is located within the low-voltage chamber 12, and the door 11 is located at the end of the low-voltage chamber 12 furthest from the transformer chamber 13. The air inlet 31 and air outlet 32 ​​within the electrical equipment cabinet 3 can both be used to install related electrical equipment. Specifically, the first air inlet 21 and the first air outlet 22 are used to allow air circulation between the interior of the low-voltage chamber 12 and the exterior of the prefabricated box 1.

[0035] When the temperature inside the power equipment cabinet 3 rises, the temperature inside the enclosure 1 also rises, requiring the activation of the heat exchange device 2 to exchange air between the inside and outside of the enclosure 1. Specifically, the first air inlet 21, the second air inlet 33, the air inlet cavity 31, the air outlet cavity 32, the second air outlet 34, and the first air outlet 22 are interconnected to form the first heat dissipation air duct. At this time, the airflow path and direction are (see reference). Figure 6 The cold air outside the enclosure 1 enters the enclosure 1 through the first air inlet 21, and then enters the air inlet cavity 31 of the power equipment cabinet 3 through the second air inlet 33. This air carries the hot air in the air inlet cavity 31 to the air outlet cavity 32, where it continues to flow. The hot air then passes through the second air outlet 34 and the first air outlet 22 before being discharged to the outside of the enclosure 1, thus achieving the effect of heat dissipation for the interior of the power equipment cabinet 3 inside the enclosure 1. Furthermore, the first air outlet 22 is also connected to the interior of the enclosure 1, allowing hot air from outside the power equipment cabinet 3 inside the enclosure 1 to also be discharged through the first air outlet 22.

[0036] By setting up the heat exchange device 2 and forming the first heat dissipation duct, this utility model can guide the air flow path. Furthermore, the connection between the air inlet cavity 31 and the air outlet cavity 32 is located on the side away from the door 11, which makes the air flow path in the first heat dissipation duct longer and improves the heat dissipation effect.

[0037] By setting the power equipment cabinet 3 inside the enclosure 1, the first heat dissipation duct is formed, and the power equipment that easily generates a lot of heat during operation can be concentrated in the power equipment cabinet 3. It can be understood that the power equipment is installed along the path of the first heat dissipation duct. When dissipating heat, the cold air can flow along the first heat dissipation duct, so that all the power equipment installed along the path of the first heat dissipation duct can be cooled. The air flow path is long, which effectively improves the heat dissipation effect and solves the problem of poor heat dissipation effect of the existing heat dissipation structure for box-type substations.

[0038] Please see Figure 2 To further explain, the heat exchange device 2 includes a device body 23, an inlet fan and an outlet fan. The first air inlet 21 and the first air outlet 22 are both located on the device body 23. The inlet fan is installed at the first air inlet 21 and the outlet fan is installed at the first air outlet 22.

[0039] By setting the air intake fan, sufficient cold air can be ensured to enter the air intake cavity 31 through the first air intake 21 and the second air intake 33. After entering the air intake cavity 31, the cold air will flow along the path of the first heat dissipation air duct. When the air flows into the air outlet cavity 32, the air flow speed will be reduced to a certain extent. Therefore, by setting the air outlet fan, it helps to speed up the exhaust of the air in the air outlet cavity 32, prevent heat accumulation, and improve the heat dissipation effect.

[0040] Furthermore, the heat exchange device 2 can be configured as a conventional heat exchanger (without cooling function, only capable of delivering cold air from outside the housing 1 into the housing 1 and exhausting hot air from inside the housing 1 to the outside) or an industrial air conditioner (with cooling function), which can be selected according to actual needs. In addition, the heat exchange device 2 has a higher protection level than a conventional fan.

[0041] Please see Figures 4 to 5 Furthermore, the air outlet cavity 32 includes a first chamber 321 and a second chamber 322 that are connected from left to right, and the first chamber 321 is located on the side of the second chamber 322 away from the box door 11. The air inlet cavity 31 and the first chamber 321 are connected vertically.

[0042] Please see Figures 7 to 8 The heat dissipation structure also includes a busbar 4 and a busbar fan. The busbar 4 is located on the side close to the first chamber 321. The busbar 4 is connected to the first chamber 321 front and back, and the busbar 4 is connected to the air inlet chamber 31 front and back.

[0043] The busbar trunking 4 has a third air outlet 41 on its side wall facing the box door 11, and the busbar trunking fan is installed at the third air outlet 41.

[0044] Please refer to the reference. Figure 6 and Figure 8 The first air inlet 21, the second air inlet 33, the air inlet cavity 31, the first chamber 321, the busbar 4, the third air outlet 41 and the first air outlet 22 are interconnected to form a second heat dissipation air duct.

[0045] It is understood that the busbar 4 is located on the side close to the first chamber 321, that is, the busbar 4 is located on the side of the low-voltage chamber 12 close to the transformer chamber 13. The busbar 4 is equipped with copper busbars or lead busbars for wiring, so as to realize the electrical connection between the power equipment in the low-voltage chamber 12 and the transformer in the transformer chamber 13.

[0046] When the temperature inside the busbar trunking 4 rises, the busbar trunking fan can be used to exhaust the hot air inside the busbar trunking 4 into the interior of the enclosure 1. This will cause the temperature inside the enclosure 1 to rise accordingly. The hot air inside the enclosure 1 can be exhausted to the outside of the enclosure 1 through the first air outlet 22, thereby achieving the effect of heat dissipation for the interior of the enclosure 1, the interior of the power equipment cabinet 3, and the interior of the busbar trunking 4.

[0047] Specifically, the first air inlet 21, the second air inlet 33, the air inlet cavity 31, the first chamber 321, the busbar trunking 4, the third air outlet 41, and the first air outlet 22 are interconnected to form the second heat dissipation air duct. When the heat exchange device 2 and the busbar trunking fan are started, a portion of the cold air flows along the path of the first heat dissipation air duct to achieve heat dissipation (the specific air flow path can be found in [reference]). Figure 6 (This will not be elaborated further here); another portion of the cold air will flow along the path of the second heat dissipation duct (please refer to the reference). Figure 6 and Figure 8Specifically, cold air from outside the enclosure 1 enters the air intake cavity 31 of the power equipment cabinet 3 through the first air inlet 21 and the second air inlet 33, and drives the air in the air intake cavity 31 to flow into the first chamber 321 and the busbar 4 respectively. A portion of the air in the first chamber 321 flows into the second chamber 322 and is discharged to the outside of the enclosure 1 after passing through the second air outlet 34 and the first air outlet 22 in sequence. Another portion of the air in the first chamber 321 flows into the busbar 4. The air flowing into the busbar 4 (including the air flowing in from the air intake cavity 31 and the air flowing in from the first chamber 321) is discharged to the inside of the enclosure 1 through the third air outlet 41. The air inside the enclosure 1 can be discharged to the outside of the enclosure 1 through the first air outlet 22, thereby achieving heat dissipation for the inside of the enclosure 1, the inside of the power equipment cabinet 3, and the inside of the busbar 4.

[0048] For further explanation, please refer to Figure 5 , Figure 7 and Figure 8 A first opening 42 is provided at the connection between the busbar 4 and the first chamber 321 to allow air circulation between the busbar 4 and the first chamber 321. A second opening 43 is provided at the connection between the busbar 4 and the air inlet chamber 31 to allow air circulation between the busbar 4 and the air inlet chamber 31.

[0049] Please continue reading. Figure 5 and Figure 8 A first wiring port 35 is provided at the connection between the air inlet cavity 31 and the first chamber 321. The electrical equipment for wiring in the busbar 4 can pass through the first opening 42 into the first chamber 321, and then enter the air inlet cavity 31 through the first wiring port 35, thereby making an electrical connection between the electrical equipment in the air inlet cavity 31 and the air outlet cavity 32. In addition, the first wiring port 35 is also used to allow air to circulate between the air inlet cavity 31 and the first chamber 321.

[0050] Please see Figures 7 to 9 Furthermore, the air inlet 31 is provided with a partition 36, which divides the air inlet 31 into a third chamber 311 and a fourth chamber 312 arranged from bottom to top. The position of the second air inlet 33 is correspondingly arranged at the position of the third chamber 311.

[0051] The fourth chamber 312 is vertically connected to the first chamber 321, and the fourth chamber 312 is front-to-back connected to the busbar 4.

[0052] Please see Figure 7 and Figure 9 The partition 36 is provided with a second wiring port 361 at one end away from the box door 11. The partition 36 has a plurality of through holes 362 for air circulation, and the plurality of through holes 362 are spaced apart along the length of the partition 36.

[0053] Specifically, the second port 43 is located at the connection between the busbar trough 4 and the fourth chamber 312; the first terminal 35 is located at the connection between the fourth chamber 312 and the first chamber 321. The second terminal 361 can be used to allow air to circulate between the third chamber 311 and the fourth chamber 312.

[0054] Please refer to the reference. Figure 6 and Figure 8 Since the second air inlet 33 is positioned corresponding to the location of the third chamber 311, during heat dissipation, cold air first enters the third chamber 311, driving the hot air in the third chamber 311 to flow through the second connection port 361 into the fourth chamber 312. Simultaneously, air in the third chamber 311 can also flow through multiple through holes 362 into the fourth chamber 312. A portion of the air in the fourth chamber 312 flows through the first connection port 35 into the first chamber 321, and a portion of the air in the first chamber 321 flows into the second chamber 322. The air is discharged to the outside of the enclosure 1 through the second air outlet 34 and the first air outlet 22; at the same time, another part of the air in the fourth chamber 312 flows into the busbar 4 through the second opening 43, and another part of the air in the first chamber 321 flows into the busbar 4 through the first opening 42. The air flowing into the busbar 4 can be discharged to the inside of the enclosure 1 through the third air outlet 41, and the air inside the enclosure 1 can be discharged to the outside of the enclosure 1 through the first air outlet 22, thereby dissipating heat from the inside of the enclosure 1, the inside of the power equipment cabinet 3, and the inside of the busbar 4.

[0055] More specifically, the electrical equipment in the busbar 4 can pass through the first opening 42, the first chamber 321, the first wiring port 35, the fourth chamber 312, the second wiring port 361, and the third chamber 311 in sequence, thereby realizing the electrical connection of the electrical equipment in the air inlet chamber 31 and the air outlet chamber 32.

[0056] By setting up the third chamber 311 and the fourth chamber 312, the space inside the power equipment cabinet 3 can be made more fully, so as to better design and install the power equipment inside the power equipment cabinet 3.

[0057] Please see Figure 1 and Figure 2 To further explain, there are two power equipment cabinets 3, the busbar 4 is located between the two power equipment cabinets 3, and both ends of the busbar 4 are respectively connected to the two power equipment cabinets 3;

[0058] There are two heat exchange devices 2, and the heat exchange devices 2 and the power equipment cabinet 3 are set up in a one-to-one correspondence.

[0059] By setting up two power equipment cabinets 3 and placing the busbar 4 between the two power equipment cabinets 3, the layout of various power equipment inside the enclosure 1 (in this utility model, the low-voltage room 12 of the box-type substation) can be optimized. Furthermore, the busbar 4, the two power equipment cabinets 3, and the corresponding heat exchange device 2 can respectively form the first heat dissipation duct and the second heat dissipation duct, which can guide the airflow path and dissipate heat to all power equipment set along the path of the first heat dissipation duct or the second heat dissipation duct. The airflow path is longer, which improves the heat dissipation effect and solves the problem of poor heat dissipation effect of the existing heat dissipation structure for box-type substations.

[0060] Please see Figure 1 Furthermore, the heat dissipation structure also includes an air guide shroud 5, which is fixedly connected to the end of the heat exchanger away from the power equipment cabinet 3; and the opening of the air guide shroud 5 is set facing the horizontal ground.

[0061] There are two air guide hoods 5, which are respectively disposed at the first air inlet 21 and the first air outlet 22, and are respectively connected to the first air inlet 21 and the first air outlet 22.

[0062] By setting the air guide shroud 5 and oriented the opening of the air guide shroud 5 toward the horizontal ground, condensate can be prevented from accumulating at the first air inlet 21 or the first air outlet 22.

[0063] Specifically, the air guide shroud 5 is fixedly connected to the end of the device body 23 away from the power equipment cabinet 3.

[0064] Please see Figure 1 The present invention also proposes a box-type substation, including a heat dissipation structure as described in any of the above claims. The interior of the box 1 is provided with a low-voltage chamber 12, a transformer chamber 13 and a medium-voltage chamber 14 arranged sequentially along the length direction. The low-voltage chamber 12, the transformer chamber 13 and the medium-voltage chamber 14 are separated by a partition wall 15.

[0065] The cabinet door 11 is located on the side of the low-voltage chamber 12 away from the transformer chamber 13, and the power equipment cabinet 3 is located inside the low-voltage chamber 12.

[0066] This invention, by embedding the heat exchange device 2 in the door 11 and setting the power equipment cabinet 3 inside the housing 1, helps to form the first heat dissipation air duct, which can guide the airflow path. Furthermore, the power equipment cabinet 3 can also be used to centrally set up power equipment that easily generates a lot of heat during operation, and the power equipment is installed along the path of the first heat dissipation air duct. During heat dissipation, cold air can flow along the first heat dissipation air duct, and the airflow path is longer, which effectively improves the heat dissipation effect; thus solving the problem of poor heat dissipation effect of existing transformer substation heat dissipation structures.

[0067] Furthermore, the prefabricated substation also includes an indoor temperature sensor, an outdoor temperature sensor, and a control circuit board;

[0068] The indoor temperature sensor, the outdoor temperature sensor, and the control circuit board are electrically connected, and the control circuit board and the heat exchange device 2 are electrically connected.

[0069] Specifically, the indoor temperature sensor, the outdoor temperature sensor, and the control circuit board are all mounted on the heat exchange device 2. The indoor sensor monitors the temperature inside the housing 1, and the outdoor sensor monitors the temperature outside the housing 1. When the temperature inside the housing 1 is higher than a set temperature (the set temperature can be set based on the temperature outside the housing 1), the control circuit board controls the heat exchange device 2 to start, so as to dissipate heat and cool the inside of the housing 1.

[0070] Specifically, the control circuit board is electrically connected to the inlet fan and the outlet fan. When the temperature inside the housing 1 is higher than the set temperature, the control circuit board controls the inlet fan and the outlet fan to start, thereby achieving heat dissipation and cooling of the inside of the housing 1.

[0071] Furthermore, the prefabricated substation also includes an internal temperature sensor and an internal temperature controller. The internal temperature sensor is installed inside the busbar trough 4, and the internal temperature controller is installed on the side wall of the busbar trough 4. The internal temperature sensor and the internal temperature controller are electrically connected, and the internal temperature controller is electrically connected to the busbar trough fan. The internal temperature sensor monitors the temperature inside the busbar trough 4. When the temperature inside the busbar trough 4 exceeds a set temperature, the internal temperature controller controls the busbar trough fan to start, thereby dissipating heat and cooling the interior of the busbar trough 4.

[0072] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A heat dissipation structure applied to a box-type substation, the box-type substation comprising a box body provided with a box door, characterized in that: The heat dissipation structure includes a heat exchange device and a power equipment cabinet; The heat exchange device is embedded in the box door, and the heat exchange device has a first air inlet and a first air outlet, which are used to allow air to circulate between the inside and outside of the box. The power equipment cabinet is connected to the enclosure. The interior of the power equipment cabinet is provided with an air inlet chamber and an air outlet chamber in a vertical direction. The air inlet chamber and the air outlet chamber are connected vertically, and the connection between the air inlet chamber and the air outlet chamber is located on the side away from the enclosure door. The power equipment cabinet has a second air inlet and a second air outlet on the side wall facing the cabinet door. The second air inlet is corresponding to the first air inlet and the air inlet cavity, and the second air outlet is corresponding to the first air outlet and the air outlet cavity. The first air inlet, the second air inlet, the air inlet cavity, the air outlet cavity, the second air outlet, and the first air outlet are interconnected to form a first heat dissipation air duct.

2. The heat dissipating structure according to claim 1, wherein The heat exchange device includes a device body, an inlet fan, and an outlet fan. The first air inlet and the first air outlet are both located on the device body. The inlet fan is installed at the first air inlet, and the outlet fan is installed at the first air outlet.

3. The heat dissipating structure according to claim 2, wherein The air outlet cavity includes a first chamber and a second chamber that are connected from left to right, and the first chamber is located on the side of the second chamber away from the door. The air inlet cavity is connected vertically to the first chamber. The heat dissipation structure also includes a busbar and a busbar fan. The busbar is located on the side close to the first chamber. The busbar is connected to the first chamber from front to back, and the busbar is connected to the air inlet chamber from front to back. The busbar trunking has a third air outlet on its side wall facing the box door, and the busbar trunking fan is installed at the third air outlet. The first air inlet, the second air inlet, the air inlet cavity, the first chamber, the busbar trunking, the third air outlet, and the first air outlet are interconnected to form a second heat dissipation air duct.

4. The heat dissipating structure according to claim 3, wherein The air inlet cavity is provided with a partition, which divides the air inlet cavity into a third chamber and a fourth chamber arranged from bottom to top. The second air inlet is located in the third chamber. The fourth chamber is vertically connected to the first chamber, and the fourth chamber is front-to-back connected to the busbar. The partition is provided with a second wiring port at one end away from the box door, and the partition has multiple through holes for air circulation, which are spaced apart along the length of the partition.

5. The heat dissipation structure according to claim 4, characterized in that, The number of power equipment cabinets is two, the busbar trunking is located between the two power equipment cabinets, and both ends of the busbar trunking are respectively connected to the two power equipment cabinets; There are two heat exchange devices, and each heat exchange device is installed in a corresponding manner to the power equipment cabinet.

6. The heat dissipation structure according to claim 1, characterized in that, The heat dissipation structure also includes an air guide shroud, which is fixedly connected to the end of the heat exchange device away from the power equipment cabinet; and the opening of the air guide shroud is set facing the horizontal ground. There are two air guide hoods, which are respectively disposed at the first air inlet and the first air outlet, and are respectively connected to the first air inlet and the first air outlet.

7. A prefabricated substation, characterized in that, Including the heat dissipation structure as described in any one of claims 1 to 6, the interior of the enclosure is provided with a low-pressure chamber, a transformer chamber and a medium-pressure chamber arranged sequentially along the length direction, and the low-pressure chamber, the transformer chamber and the medium-pressure chamber are separated by partition walls; The enclosure door is located on the side of the low-voltage compartment away from the transformer compartment, and the power equipment cabinet is located inside the low-voltage compartment.

8. The prefabricated substation according to claim 7, characterized in that, The prefabricated substation also includes an indoor temperature sensor, an outdoor temperature sensor, and a control circuit board; The indoor temperature sensor, the outdoor temperature sensor, and the control circuit board are electrically connected, and the control circuit board and the heat exchange device are electrically connected.

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