Heat dissipation structure of energy storage boost converter all-in-one machine

Abstract

The invention provides a heat dissipation structure of an energy storage, boosting and conversion all-in-one machine, and solves the problems that the heat dissipation structure of the energy storage, boosting and conversion all-in-one machine has heat dissipation dead angles and is poor in heat dissipation effect. The heat dissipation structure comprises a heat dissipation base, a centrifugal fan and a transformer chamber, a transformer is arranged in the transformer chamber, the heat dissipation base is fixed to the bottom of the transformer chamber, the heat dissipation base is provided with an inner cavity, a base air inlet and an air outlet, the base air inlet and the air outlet are communicated with the inner cavity, and the base air inlet is located in the side portion of the heat dissipation base. The air outlet hole is formed in the top of the heat dissipation base and is communicated with the transformer chamber; the centrifugal fans are located outside the transformer chamber and fixed to the top of the transformer chamber, and air inlets of all the centrifugal fans communicate with the transformer chamber. External air flows into the transformer chamber from the air inlet of the base and the air outlet holes, flows through the transformer and is blown out from the air outlet of the centrifugal fan, cold air takes away heat of the transformer, heat dissipation dead angles are reduced through the air circulation path, and no foreign matter is blocked in the air circulation path.

Description

Technical Field

[0001] The present invention relates to the technical field of heat dissipation of an energy storage, boost and converter integrated machine, and in particular to a heat dissipation structure of an energy storage, boost and converter integrated machine. Background Art

[0002] Energy storage boost converter is widely used in all links of power generation, transmission and distribution. It converts excess power energy in the power system into electrical energy, and through a series of storage and release devices, it realizes peak-valley power regulation, fault-tolerant power supply, backup power supply and other functions of the power grid system. With the continuous increase in installed capacity, the heat generated by the three-phase dry-type transformer inside the energy storage boost converter also increases. Therefore, higher requirements are put forward for the heat dissipation of the energy storage boost converter. Once the temperature inside the shell of the energy storage boost converter is too high and ventilation and heat dissipation are not timely, it will cause damage to the various components inside the shell and even affect the stability of the power grid, causing serious economic losses and social impacts.

[0003] In the prior art, the air outlet of the energy storage, boost and converter integrated unit is located on the side. When multiple integrated units are required on site, the air outlets between adjacent integrated units interfere with each other, making it difficult to dissipate heat through air. In addition, in the heat dissipation structure of the energy storage, boost and converter integrated unit in the prior art, the air outlet is located far from the circuit breaker installation position, and there is a three-phase dry-type transformer and a partition between the two, which makes the circuit breaker installation position very likely to become a heat dissipation dead angle, generating turbulence and affecting the heat dissipation effect of the transformer room. In addition, the actual application environment of the energy storage, boost and converter integrated unit varies. In areas with harsh environments such as the Gobi Desert, mountainous areas, and coastal areas, while taking into account heat dissipation, the overall protection performance of the energy storage, boost and converter integrated unit must also be met to prevent sand and water from entering the equipment and damaging the normal operation of the energy storage, boost and converter integrated unit.

[0004] Therefore, the heat dissipation structure of the energy storage, boost and converter integrated machine in the prior art has heat dissipation blind spots and poor heat dissipation effect. How to design a reliable heat dissipation structure of the energy storage, boost and converter integrated machine has become an urgent problem to be solved. Summary of the Invention

[0005] The present invention aims to provide a heat dissipation structure for an integrated energy storage, boost, and converter unit to address the existing technical issues of heat dissipation blind spots and poor heat dissipation performance in these units. The various technical benefits achieved by the preferred solution among the various technical solutions provided by the present invention are detailed below.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] The heat dissipation structure of the energy storage, boost and converter integrated machine provided by the present invention includes a heat dissipation base, a centrifugal fan, and a transformer chamber with a transformer disposed therein, wherein:

[0008] The heat dissipation base is fixed to the bottom of the transformer chamber. The heat dissipation base has an inner cavity, a base air inlet communicating with the inner cavity, and air outlet holes. The base air inlet is located on the side of the heat dissipation base, and the air outlet holes are located on the top of the heat dissipation base and communicate with the transformer chamber.

[0009] The centrifugal fans are located outside the transformer chamber and are all fixed to the top of the transformer chamber. The air inlets of all the centrifugal fans communicate with the transformer chamber.

[0010] Preferably, the total coverage area of the air outlet holes is larger than the projected area of the transformer on the horizontal plane.

[0011] Preferably, the heat dissipation base further includes an air outlet plate. The air outlet plate is located at the bottom of the transformer chamber and separates the inner cavity of the heat dissipation base from the inner cavity of the transformer chamber.

[0012] The air outlet holes are evenly distributed on the air outlet plate, and the transformer is fixed to the air outlet plate.

[0013] Preferably, the air outlet holes are arranged in a matrix at uniform intervals on the air outlet plate.

[0014] Mounting holes are further provided on the air outlet plate. The mounting holes are located between adjacent rows or adjacent columns of the air outlet holes and are used to fix the transformer to the air outlet plate.

[0015] Preferably, the heat dissipation base further includes an air inlet louver and a sand baffle, where:

[0016] The air inlet louver is arranged at the base air inlet, and the sand baffle is located in the inner cavity of the heat dissipation base and on the inner side of the base air inlet.

[0017] On the inner side of the same base air inlet, the number of the sand baffles is at least two. The sand baffles are respectively fixed to the upper inner wall and the lower inner wall of the heat dissipation base and are arranged at intervals along the air inlet direction. An air flow channel is formed between the sand baffles.

[0018] Preferably, the transformer is located at the middle position of the heat dissipation base. A cabin top air outlet is provided at the top of the transformer chamber. The cabin top air outlet communicates with the air inlets of the centrifugal fans and is arranged in a "field" shape, and the cabin top air outlets are arranged corresponding to the centrifugal fans one by one.

[0019] A wind baffle exists between adjacent centrifugal fans, and the wind baffle is fixed to the top of the transformer chamber.

[0020] Preferably, the heat dissipation structure of the energy storage, boost and converter integrated machine further includes a fan bracket and a fan cover, wherein:

[0021] The fan bracket is fixed to the top of the transformer chamber, the centrifugal fan is fixed to the fan bracket, and the fan cover is arranged outside the centrifugal fan and is fixedly connected to the fan bracket;

[0022] The air outlet of the fan cover faces downward and is arranged around the axis of the centrifugal fan.

[0023] Preferably, a first waterproof eaves is formed at the bottom of the fan cover, and the first waterproof eaves is vertically arranged;

[0024] A fan cover ventilation plate is fixed in the fan cover, the air outlet is located on the fan cover ventilation plate, and the position of the air outlet is higher than the first waterproof eaves;

[0025] The wind cover ventilation plate is lower than the ventilation port of the fan bracket, thereby forming a second waterproof eaves on the fan bracket. The second waterproof eaves is vertically arranged, and the wind cover ventilation plate is fixed to the bottom of the second waterproof eaves.

[0026] Preferably, the heat dissipation structure of the energy storage, boost and converter integrated machine further comprises a box body and a bottom bracket, wherein: the transformer chamber is formed in the box body, and the box body is further provided with an independent low-voltage chamber and a high-voltage chamber;

[0027] The bottom bracket is fixed to the bottom of the box.

[0028] Preferably, the transformer is a three-phase dry-type transformer, which includes a transformer fan and a transformer coil, and all the transformer fans are fixed to the bottom of the transformer coil.

[0029] The heat dissipation structure of the integrated energy storage, boost and converter provided by the present invention has the following beneficial effects compared to the prior art: the heat dissipation base is located at the bottom of the transformer chamber. Under the action of the centrifugal fan and the transformer fan, external wind flows from the base air inlet and outlet into the transformer chamber. After flowing through the transformer, it is blown out from the centrifugal fan outlet. The cold wind can take away the heat of the transformer, and the wind flow path reduces heat dissipation dead angles. There are no foreign objects blocking the wind flow path, and there are no dead angles for heat dissipation, thus solving the problem of turbulence and dead angles in the transformer chamber of the existing integrated energy storage, boost and converter. Because the base air inlet is evenly distributed at the bottom of the transformer, the problem of unbalanced three-phase heat dissipation in the traditional integrated unit is solved. Because the base air outlet is located at the top of the cabin, when multiple integrated units are needed on site, their heat dissipation will not affect each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 This is a schematic diagram of the overall structure of the heat dissipation structure of the energy storage boost converter;

[0032] Figure 2 This is a schematic diagram of the structure of the transformer room in the energy storage boost converter;

[0033] Figure 3 It is a structural diagram of the air outlet plate;

[0034] Figure 4 This is a schematic diagram of the wind flow path in the energy storage boost converter;

[0035] Figure 5 This is a top view of the internal structure of the energy storage boost converter;

[0036] Figure 6 This is a side view of the energy storage boost converter;

[0037] Figure 7 This is a schematic diagram of the distribution of the cabin top air outlet on the top of the transformer room;

[0038] Figure 8 It is a cross-sectional view of the matching structure of the centrifugal fan, fan cover and fan bracket;

[0039] Figure 9 It is a schematic diagram of the three-dimensional structure of the centrifugal fan;

[0040] Figure 10 It is a longitudinal cross-sectional view of the heat sink.

[0041] In the figure, 1. heat dissipation base; 101. base air inlet; 102. air outlet plate; 103. air outlet hole; 104. mounting hole; 2. transformer chamber; 21. cabin roof air outlet; 3. centrifugal fan; 4. transformer; 41. transformer fan; 42. transformer coil; 5. air inlet louver; 6. sand shield; 7. wind shield; 8. fan bracket; 9. fan cover; 10. first waterproof eaves; 11. second waterproof eaves; 12. hood ventilation plate; 121. air outlet vent; 13. box body; 14. bottom support; 15. low-voltage chamber; 16. high-voltage chamber; 17. circuit breaker; 18. air guide ring. DETAILED DESCRIPTION

[0042] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0043] In the description of the present invention, it should be understood that the terms "center," "length," "width," "height," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and "side" and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0044] The embodiment of the present invention provides a heat dissipation structure for an integrated energy storage, boost and converter. There is no foreign matter blocking the air flow path, and there are no dead corners for heat dissipation, which solves the problems of turbulence inside the transformer room and dead corners for heat dissipation in existing integrated energy storage, boost and converter units.

[0045] The following combination Figures 1-10 The technical solution provided by the present invention is described in more detail.

[0046] like Figures 1-10 The heat dissipation structure of the energy storage, boost and converter integrated machine provided by the present invention includes a heat dissipation base 1, a centrifugal fan 3, and a transformer chamber 2 with a transformer 4 arranged inside, wherein: the heat dissipation base 1 is fixed to the bottom of the transformer chamber 2, the heat dissipation base 1 has an inner cavity, a base air inlet 101 and an air outlet 103 connected to the inner cavity, the base air inlet 101 is located on the side of the heat dissipation base 1, and the air outlet 103 is located at the top of the heat dissipation base 1 and is connected to the transformer chamber 2; the centrifugal fan 3 is located outside the transformer chamber 2, the centrifugal fans 3 are all fixed to the top of the transformer chamber 2, and the air inlets of all centrifugal fans 3 are connected to the transformer chamber 2.

[0047] As an optional embodiment, the heat dissipation structure of the integrated energy storage, boost and converter also includes a housing 13 and a base 14. The transformer chamber 2 is formed within the housing 13, which also includes an independent low-voltage chamber 15 and high-voltage chamber 16. The base 14 is fixed to the bottom of the housing 13. The heat dissipation base 1 can be fixed to the top of the base 14 by welding, and the transformer 4 is fixed to the top of the heat dissipation base 1 by bolts.

[0048] Circuit breaker 17 is located next to transformer chamber 2. Transformer 4 is a three-phase dry-type transformer, which includes a transformer fan 41 and a transformer coil 42. As this is a mature existing technology, it will not be described in detail here. All transformer fans 41 are fixed to the bottom of the transformer coil 42.

[0049] The heat dissipation structure of the energy storage, boost and converter integrated unit of this embodiment is such that the heat dissipation base 1 is located at the bottom of the transformer chamber 2. Under the action of the centrifugal fan 3 and the transformer fan 41, the external wind flows from the base air inlet 101 and the air outlet 103 into the transformer chamber 2. After flowing through the transformer 4, it is blown out from the air outlet of the centrifugal fan 3. The cold wind can take away the heat of the transformer, and the air flow path reduces the heat dissipation dead angle. There are no foreign objects blocking the air flow path, and there are no dead angles for heat dissipation, which solves the problem of turbulence and dead angles in the transformer chamber 2 of the existing energy storage, boost and converter integrated unit. Since the base air inlet 101 is evenly distributed at the bottom of the transformer 4, the problem of unbalanced three-phase heat dissipation of the traditional integrated unit is solved. Since the base air outlet is located at the top of the cabin, when multiple integrated units are needed on site, their heat dissipation will not affect each other.

[0050] As an alternative embodiment, see Figure 2 、 Figure 4 As shown, the total coverage area of ​​the air outlet holes 103 is larger than the projection area of ​​the transformer 4 on the horizontal plane.

[0051] Figure 4 The arrows in the figure indicate the direction of airflow. Air flowing out of the air outlet 103 of the heat sink base 1 can flow through the interior of the transformer coil 42, exchange heat with the heat inside the transformer coil 42, and then be discharged from the cabin through the cabin top air outlet 21 by the centrifugal fan 3. This structure ensures that the air discharged from the heat sink base 1 is in contact with the transformer for heat exchange, thereby improving the heat exchange effect.

[0052] As an alternative embodiment, see Figure 2-Figure 4 As shown, the heat dissipation base 1 of this embodiment also includes an air outlet plate 102, which is located at the bottom of the transformer chamber 2. The air outlet plate 102 separates the inner cavity of the heat dissipation base 1 from the inner cavity of the transformer chamber 2; the air outlet holes 103 are evenly distributed on the air outlet plate 102, and the transformer is fixed on the air outlet plate 102.

[0053] Under the action of the centrifugal fan 3, the heat dissipation base 1 and the centrifugal fan 3 together serve as the key heat dissipation components of the energy storage, boost and converter. When the energy storage, boost and converter is in operation, the temperature inside the transformer chamber 2 reaches the temperature set by the thermostat, and the transformer fan 41 and the centrifugal fan 3 start to operate. Under the action of the centrifugal fan 3, the pressure inside the transformer chamber 2 will be lower than the atmospheric pressure, and cold air will be sucked into the inner cavity of the heat dissipation base 1.

[0054] See also Figure 4 , Figure 4The direction of the arrow in the figure indicates the direction of airflow. Under the action of the transformer fan 41, the cold air from the heat dissipation base 1 is sent to the inside of the transformer coil 42 through the air outlet 103. After heat exchange with the heat inside the transformer coil 42, the cold air is discharged from the cabin through the cabin top air outlet 21 by the centrifugal fan 3.

[0055] See also Figure 2 As shown, in this embodiment, the transformer 4 is directly fixed on the air outlet plate 102, and the airflow flowing out from the air outlet 103 of the air outlet plate 102 can directly pass through the transformer, reducing the existence of heat dissipation dead corners and improving the heat dissipation effect.

[0056] As an alternative embodiment, see Figure 3 As shown, the air outlet holes 103 are evenly spaced and arranged in a matrix on the air outlet plate 102; the air outlet plate 102 is also provided with mounting holes 104, which are located between adjacent rows or columns of air outlet holes 103, and the mounting holes 104 are used to fix the transformer 4 on the air outlet plate 102.

[0057] The transformer 4 is fixedly connected to the air outlet plate 102 by a locking member, and the locking member can be a bolt or the like.

[0058] The air outlet plate 102 of this embodiment is provided with both an air outlet hole 103 and a mounting hole 104. The airflow in the heat dissipation base 1 can flow out through the air outlet hole 103 on the air outlet plate 102, enter the transformer chamber 2, and directly flow through the transformer coil 42, taking away the heat of the transformer coil 42. This can achieve fixed installation and heat dissipation of the transformer, has a compact structure, and improves the heat dissipation effect.

[0059] As an alternative embodiment, see Figure 1 、 Figure 2 and Figure 10 As shown, the heat dissipation base 1 also includes an air inlet louver 5 and a sand shield 6, wherein: the air inlet louver 5 is arranged at the base air inlet 101, and the sand shield 6 is located in the inner cavity of the heat dissipation base 1 and is located on the inner side of the base air inlet 101.

[0060] Dust and sand mixed in the external cold air are filtered through the air inlet louvers 5 and the sand baffles 6 on the heat dissipation base 1, which greatly improves the protection performance of the energy storage boost converter.

[0061] See also Figure 10 As shown, on the inner side of the same base air inlet 101, there are at least two sand shields 6, which are respectively fixed to the upper inner wall and the lower inner wall of the heat dissipation base 1 and arranged at intervals along the air inlet direction, forming an air flow channel between the sand shields 6.

[0062] The sand baffle 6 of the above structure will not affect the external airflow entering the heat dissipation base 1, and can also block dust and sand from entering the transformer chamber 2 to a greater extent, thereby improving the protection performance of the energy storage boost converter.

[0063] See also Figure 2-Figure 4 As shown, the air outlet holes 103 of the heat dissipation base 1 are evenly distributed at the bottom of the transformer, so that the three-phase temperatures of the three-phase dry-type transformer are close to equilibrium.

[0064] As an alternative embodiment, see Figure 4 , the transformer 4 is located in the middle of the heat sink 1, see Figure 7 The top of the transformer room 2 is provided with a cabin top air outlet 21, which is connected to the air inlet of the centrifugal fan 3 and is arranged in a "field" shape. The cabin top air outlet 21 and the centrifugal fan 3 are set one to one.

[0065] In the prior art, due to the installation of the circuit breaker 17 in the transformer chamber 2, the transformer chamber 2 is "L"-shaped. In the absence of interference from external factors, the heat emitted by the three-phase dry-type transformer will be evenly distributed on the top of the transformer chamber 2. The traditional heat dissipation structure has an air outlet position far from the installation position of the circuit breaker 17, and there is a three-phase dry-type transformer and a partition between the two. As a result, the installation position of the circuit breaker 17 is easily turned into a heat dissipation dead angle, generating turbulence and affecting the heat dissipation effect of the transformer chamber 2.

[0066] In this embodiment, the cabin top air outlet 21 is located at the top of the transformer room 2, and is close to the hot air on the cabin top. After the centrifugal fan 3 is started, the heat can be directly drawn out of the box body 13. There is no foreign matter blocking the heat exhaust path, and there is no dead angle for heat exhaust, which solves the problem of turbulence inside the transformer room 2 of the traditional energy storage boost converter and dead angle for heat exhaust.

[0067] See also Figure 1 and Figure 6 As shown, there is a wind shield 7 between adjacent centrifugal fans 3 , and the wind shield 7 is fixed to the top of the transformer chamber 2 .

[0068] Specifically, the wind shield 7 is fixed between the four centrifugal fans 3 by welding or other means to prevent the heat exhaust of each centrifugal fan 3 from interfering with each other.

[0069] As an alternative embodiment, see Figure 6 、 Figure 8 and Figure 9 As shown, the heat dissipation structure of the energy storage, boost and converter integrated unit also includes a fan bracket 8 and a fan cover 9, wherein: the fan bracket 8 is fixed to the top of the transformer chamber 2, the centrifugal fan 3 is fixed to the fan bracket 8, and the fan cover 9 is arranged outside the centrifugal fan 3 and fixedly connected to the fan bracket 8; the air outlet 121 of the fan cover 9 faces downward and is arranged around the axis of the centrifugal fan 3.

[0070] The fan bracket 8 is used to fix the centrifugal fan 3. Specifically, the wind shield 7 is welded between the fan covers 9 of the four centrifugal fans 3 to prevent the heat exhaust of each centrifugal fan 3 from interfering with each other.

[0071] In practical applications, such as Figure 4 and Figure 6 As shown, the hot air in the transformer room 2 passes through the cabin top air outlet 21, the air guide ring 18 of the centrifugal fan 3, and is discharged through the air outlet of the centrifugal fan 3 under the action of the centrifugal fan 3. After passing through the air outlet of the centrifugal fan 3, the hot air passes through the ventilating port of the fan bracket 8 and the air outlet 121 of the fan cover 9 and is discharged out of the cabin.

[0072] The fan cover 9 protects the centrifugal fan 3 and guides the air discharged by the centrifugal fan 3 .

[0073] As an alternative embodiment, see Figure 8 and Figure 9 As shown, a first waterproof eaves 10 is formed at the bottom of the fan cover 9, and the first waterproof eaves 10 is vertically arranged; a fan cover ventilation plate 12 is fixed in the fan cover 9, and an air outlet 121 is located on the fan cover ventilation plate 12, and the position of the air outlet 121 is higher than the first waterproof eaves 10; the fan cover ventilation plate 12 is lower than the ventilation port of the fan bracket 8, thereby forming a second waterproof eaves 11 on the fan bracket 8, and the second waterproof eaves 11 is vertically arranged, and the fan cover ventilation plate 12 is fixed to the bottom of the second waterproof eaves 11.

[0074] See also Figure 8 and Figure 9 As shown, the air outlet of the fan cover 9 adopts a concave structure, that is, the air outlet 121 of the fan cover 9 is located in the fan cover ventilation plate 12 inside the fan cover 9, as shown in FIG. Figure 9 In rainy and snowy weather, the fan cover 9 acts as a wind and rain shield. When crosswinds carry rain, snow, dust, and other foreign matter horizontally toward the fan cover 9, most of the foreign matter is blocked by the first waterproof eaves 10. A small portion of the foreign matter passes through the air outlet 121 and is then blocked by the second waterproof eaves 11. These two waterproof eaves minimize the risk of rain and snow entering the transformer chamber 2 through the air outlet 121 of the fan cover 9, thereby improving the reliability of the energy storage, boost, and converter.

[0075] The heat dissipation structure of the energy storage, boost and converter integrated machine of this embodiment has three compartments arranged in the box 13, namely, a transformer chamber 2, a high-voltage chamber 16, and a low-voltage chamber 15. The transformer 4 is placed in the transformer chamber 2, and a heat dissipation base 1 is arranged directly below the three-phase dry-type transformer. The base air inlet 101 is located on both sides of the heat dissipation base 1. The air inlet of the heat dissipation base 1 is equipped with shutters for protection, and a sand-proof plate is welded inside the heat dissipation base 1 to further improve the protection performance of the product; the air outlet 103 of the heat dissipation base 1 is located in the transformer chamber 2 and directly below the transformer 4. The cabin top air outlet 21 is located directly above the three-phase dry-type transformer. A centrifugal fan 3 is arranged at the cabin top air outlet 21. Each centrifugal fan 3 adopts an independent air duct, and each centrifugal fan 3 is equipped with a fan cover 9 and a wind shield 7 at its outlet. The fan cover 9 has a concave structure at its outlet, so that the air outlet plane is inside the fan cover 9 and at a certain height from the cabin top, thereby minimizing air volume loss and the problem of rain and snow backflow, and having a high safety factor. When the energy storage boost converter is running, the centrifugal fan 3 at the air outlet starts to work. At this time, the external pressure of the energy storage boost converter is greater than the internal pressure of the cabin. The external cold air enters the cabin through the Jinfeng shutters at the air inlets on both sides of the ventilation base. The cold air enters the transformer chamber 2 and the transformer coil 42 from the heat dissipation base 1. After heat exchange, it is discharged by the top centrifugal fan 3. The "bottom-in and top-out" ventilation structure removes the internal heat of the three-phase dry-type transformer coil 42 to the greatest extent, and the heat dissipation effect is significant.

[0076] In the description of this specification, specific features, structures or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0077] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0078] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A heat dissipation structure of an energy storage, boost and converter integrated machine, characterized in that: It includes a heat dissipation base, a centrifugal fan, and a transformer chamber with a transformer installed inside. Among them: The heat dissipation base is fixed to the bottom of the transformer chamber. The heat dissipation base has an inner cavity, a base air inlet connected to the inner cavity, and an air outlet hole. The base air inlet is located on the side of the heat dissipation base, and the air outlet hole is located on the top of the heat dissipation base and is connected to the transformer chamber. The centrifugal fan is located outside the transformer chamber and is fixed to the top of the transformer chamber. The air inlets of all the centrifugal fans are connected to the transformer chamber.

2. The heat dissipation structure of the energy storage, boost and converter integrated machine according to claim 1, characterized in that: The total coverage area of the air outlet holes is larger than the projected area of the transformer on the horizontal plane.

3. The heat dissipation structure of the energy storage, boost and converter integrated machine according to claim 1, characterized in that: The heat dissipation base further includes an air outlet plate, which is located at the bottom of the transformer chamber and separates the inner cavity of the heat dissipation base from the inner cavity of the transformer chamber. The air outlet holes are evenly distributed on the air outlet plate, and the transformer is fixed to the air outlet plate.

4. The heat dissipation structure of the energy storage, boost and converter integrated machine according to claim 3, characterized in that: The air outlet holes are arranged in a matrix at equal intervals on the air outlet plate.

5. The heat dissipation structure of the energy storage, boost and converter integrated machine according to claim 1, characterized in that: Mounting holes are also provided on the air outlet plate. The mounting holes are located between adjacent rows or columns of the air outlet holes and are used to fix the transformer to the air outlet plate. The heat dissipation base further includes an air inlet louver and a sand guard plate. Among them: The air inlet louver is arranged at the base air inlet, and the sand guard plate is located in the inner cavity of the heat dissipation base and on the inner side of the base air inlet.

6. The heat dissipation structure of the energy storage, boost and converter integrated machine according to claim 1, characterized in that: On the inner side of the same base air inlet, the number of sand guard plates is at least two. The sand guard plates are respectively fixed to the upper inner wall and the lower inner wall of the heat dissipation base and are arranged at intervals along the air inlet direction. An air flow channel is formed between the sand guard plates. The transformer is located at the middle position of the heat dissipation base. A cabin top air outlet is provided at the top of the transformer chamber. The cabin top air outlet is connected to the air inlets of the centrifugal fans and is arranged in a "field" shape. The cabin top air outlets are arranged corresponding to the centrifugal fans one by one.

7. The heat dissipation structure of the energy storage, boost and converter integrated machine according to claim 1, characterized in that: There is a wind baffle between adjacent centrifugal fans, and the wind baffle is fixed to the top of the transformer chamber. The heat dissipation structure of the energy storage boost converter also includes a fan bracket and a fan cover. Among them: The fan bracket is fixed to the top of the transformer chamber. The centrifugal fan is fixed to the fan bracket. The fan cover is arranged outside the centrifugal fan and is fixedly connected to the fan bracket.

8. The heat dissipation structure of the energy storage, boost and converter integrated machine according to claim 7, characterized in that: The air outlet opening of the fan cover faces downward and is arranged around the axis of the centrifugal fan. A first waterproof eaves is formed at the bottom of the fan cover, and the first waterproof eaves is arranged vertically. An air cover ventilation plate is fixed inside the fan cover. The air outlet opening is located on the air cover ventilation plate, and the position where the air outlet opening is located is higher than the first waterproof eaves. The air cover ventilation plate is lower than the ventilation opening of the fan bracket, so a second waterproof eaves is formed on the fan bracket. The second waterproof eaves is arranged vertically, and the air cover ventilation plate is fixed to the bottom of the second waterproof eaves.

9. The heat dissipation structure of the energy storage, boost and converter integrated machine according to claim 1, characterized in that: The heat dissipation structure of the energy storage, boost and converter integrated machine further comprises a box body and a bottom bracket, wherein: the transformer chamber is formed in the box body, and the box body is further provided with an independent low-voltage chamber and a high-voltage chamber; The bottom bracket is fixed to the bottom of the box.

10. The heat dissipation structure of the energy storage, boost and converter integrated machine according to claim 1, characterized in that: The transformer is a three-phase dry-type transformer, which includes a transformer fan and a transformer coil, and all the transformer fans are fixed to the bottom of the transformer coil.

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