Energy storage converter and heat dissipation module thereof

Abstract

The utility model provides a heat dissipation module of an energy storage converter, which comprises a heat dissipation fan, a heat dissipation device and a plurality of groups of heat conduction pipes, the heat dissipation device is in contact with the plurality of groups of heat conduction pipes, the energy storage converter comprises a plurality of IGBT modules, the plurality of groups of heat conduction pipes are in one-to-one correspondence with the plurality of IGBT modules and form thermal contact, and the plurality of IGBT modules are arranged in a straight line; the heat dissipation fan is arranged opposite to the heat dissipation device so as to provide heat dissipation air flow perpendicular to the arrangement direction of the multiple IGBT modules for the heat dissipation device, the windward area of the heat dissipation device facing the heat dissipation medium can be increased, the heat dissipation efficiency can be improved, and the heat dissipation effect can be enhanced.

Description

Technical Field

[0001] The utility model relates to the field of converters, and particularly to an energy storage converter and its heat dissipation module. Background Art

[0002] An energy storage converter is an electrical device that changes the voltage, frequency, number of phases, and other electrical quantities or characteristics of a power supply system. The converter integrates IGBT (Insulated Gate Bipolar Transistor) modules; in some energy storage converters, the conventional air-cooled heat dissipation system cannot well meet the heat dissipation requirements of the IGBT modules, resulting in heat not being dissipated in a timely manner, ultimately affecting the performance of the converter.

[0003] In some energy storage converters, the conventional upper chassis sealing, waterproofing, and conductive module has a complex structure and cumbersome operation, ultimately affecting the process production, assembly, and later maintenance and disassembly.

[0004] The existing wall-mounted method of energy storage converters has a relatively large variety under the conventional assembly method, but it often uses several times the weight on the whole machine equipment, shortening the service life of the wall-mounted bracket and making the installation complex. Summary of the Utility Model

[0005] Therefore, in view of at least one of the above problems, the utility model provides an energy storage converter and its heat dissipation module.

[0006] The utility model is implemented as follows:

[0007] The utility model provides a heat dissipation module for an energy storage converter, including a heat dissipation fan, a radiator, and multiple groups of heat conduction tubes. The radiator is in contact with the multiple groups of heat conduction tubes. The energy storage converter includes multiple IGBT modules. It is characterized in that the multiple groups of heat conduction tubes correspond to the multiple IGBT modules one by one and form thermal contact, and the multiple IGBT modules are arranged in a "one"-shaped layout; the heat dissipation fan is arranged opposite to the radiator to provide a heat dissipation air flow perpendicular to the arrangement direction of the multiple IGBT modules for the radiator.

[0008] Wherein, in one embodiment, multiple heat dissipation fans are provided, and the multiple heat dissipation fans are arranged in a "one"-shaped layout, and the arrangement direction of the multiple heat dissipation fans is parallel to the arrangement direction of the multiple IGBT modules.

[0009] Wherein, in one embodiment, the radiator is of a cuboid structure, and the length direction of the radiator is parallel to the arrangement direction of the multiple IGBT modules.

[0010] Among them, in one embodiment, the radiator includes a bottom plate and a plurality of heat dissipation fins arranged on the bottom plate. The plurality of heat dissipation fins are arranged at intervals along the length direction of the radiator, and the multiple groups of heat conduction tubes are buried on the bottom plate.

[0011] Among them, in one embodiment, in each group of the multiple groups of heat conduction tubes, the number of heat conduction tubes in each group is four, and the heat conduction tubes are copper tubes.

[0012] The present utility model also provides an energy storage converter, which at least includes the heat dissipation module of the energy storage converter as described in any one of the previous items.

[0013] Among them, in one embodiment, it further includes a chassis and a PCB assembly. The heat dissipation module and the PCB assembly are arranged in the chassis. The PCB assembly includes a PCB board and the multiple IGBT modules assembled on the front surface of the PCB board. The radiator is assembled on the back surface of the PCB board. The chassis includes an air inlet and an air outlet, and the air inlet and the air outlet are distributed on both sides perpendicular to the arrangement direction of the multiple IGBT modules.

[0014] Among them, in one embodiment, the chassis includes a box body, an upper cover and a lower cover. The box body includes an upper box body and a lower box body, and the lower box body is assembled with the lower cover; a plurality of stamping grooves are arranged on the skirt surface of the upper box body, and the plurality of stamping grooves are arranged at intervals around the skirt surface of the upper box body for one week. The stamping grooves are used for installing floating nuts, and the stamping grooves can keep the floating nuts sunk in the stamping grooves; the floating nuts are used to cooperate with screws to connect the upper cover and the upper box body.

[0015] Among them, in one embodiment, a sealed waterproof and conductive module is assembled on the skirt surface of the upper box body, and the sealed waterproof and conductive module is a module in which an insulating silicone has an adhesive backing and a conductive material on one side.

[0016] Among them, in one embodiment, it further includes a wall-mounted bracket module. The wall-mounted bracket module includes a wall-mounted bracket body and hooks. The wall-mounted bracket body is in an "I" shape structure; the hooks are in an "h" shape, and there are 4 hooks, and the 4 hooks are connected to the lower box body, and a strengthening structure is arranged on the inner side of the skirt of the lower box body where the hooks are connected.

[0017] Through the technical solution provided by the present utility model, the following technical effects are achieved:

[0018] 1. The present utility model provides a heat dissipation module for an energy storage converter, which includes a heat dissipation fan, a radiator, and multiple groups of heat conduction tubes. The radiator is in contact with the multiple groups of heat conduction tubes. The energy storage converter includes multiple IGBT modules. The multiple groups of heat conduction tubes correspond to the multiple IGBT modules one by one and form thermal contact. The multiple IGBT modules are arranged in a "one" shape. The heat dissipation fan is arranged opposite to the radiator to provide a heat dissipation air flow perpendicular to the arrangement direction of the multiple IGBT modules for the radiator, which can increase the windward area of the radiator facing the heat dissipation medium, improve the heat dissipation efficiency, and enhance the heat dissipation effect.

[0019] 2. There are multiple heat dissipation fans, which are arranged in a "one" shape. The arrangement direction of the multiple heat dissipation fans is parallel to the arrangement direction of the multiple IGBT modules, so as to enhance the flow rate of the windward surface of the radiator facing the heat dissipation medium, and further improve the heat dissipation efficiency.

[0020] 3. The air inlet and air outlet of the chassis are distributed on both sides perpendicular to the arrangement direction of the multiple IGBT modules, so that the heat dissipation medium can blow vertically towards the length direction of the radiator, and the windward area of the radiator facing the heat dissipation medium is larger, and the heat dissipation is more efficient. Description of the Drawings

[0021] Figure 1 is a perspective view of the energy storage converter;

[0022] Figure 2 is a perspective view of the energy storage converter with the upper cover removed;

[0023] Figure 3 is a perspective view of the energy storage converter with the lower cover removed;

[0024] Figure 4 is a perspective view of the radiator;

[0025] Figure 5 is a front view of the energy storage converter with the upper cover and the PCB assembly removed;

[0026] Figure 6 is a perspective view of the upper box body;

[0027] Figure 7 is Figure 6 the enlarged view at A in

[0028] Figure 8 is a perspective view of the wall-mounted bracket module;

[0029] Figure 9 is a perspective view of the wall-mounted bracket body;

[0030] Figure 10 is a perspective view of the hook. Detailed Embodiment

[0031] To further illustrate each embodiment, the present utility model provides accompanying drawings. These drawings are a part of the disclosure of the present utility model, mainly used to illustrate the embodiments, and can be combined with the relevant descriptions in the specification to explain the operating principle of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present utility model. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0032] The present utility model will be further described below in conjunction with the accompanying drawings and specific implementation manners.

[0033] As Figures 1-10 shown, this embodiment provides a power conversion system for energy storage 1, including a chassis 10, a wall-mounted bracket module 30, a PCB assembly 20, and a heat dissipation module 60. The chassis 10 includes a box body 12, an upper cover 11, and a lower cover 13. The box body 12 is a hollow structure with openings on both the upper and lower sides. The upper cover 11 and the lower cover 13 respectively cover the upper and lower openings of the chassis 20 to form a complete chassis structure. The PCB assembly 20 and the heat dissipation module 60 are installed inside the chassis 10. The wall-mounted bracket module 30 is connected to the chassis 10, so that the chassis 10 can be installed and suspended on the wall surface through the wall-mounted bracket module 30.

[0034] The box body 12 includes an upper box body 121 and a lower box body 122. The upper box body 121 and the lower box body 122 are connected to each other, for example, through connecting pieces. The upper cover 11 is installed and matched with the upper box body 121, and the lower cover 13 is installed and matched with the lower box body 122. In some other embodiments, the upper box body 121 and the lower box body 122 may be an integral structure.

[0035] The chassis 10 includes an air inlet 14 and an air outlet 15, so that the external heat dissipation medium can enter the interior of the chassis 10 through the air inlet 14, and after heat exchange with the heat dissipation module 60, it is discharged outside the chassis 10 through the air outlet 15, which is beneficial to the heat dissipation of the heat dissipation module 60. The heat dissipation medium is, for example, air.

[0036] In this specific embodiment, the PCB assembly 20 is installed on the upper box body 121, the heat dissipation module 60 is installed on the lower box body 122, and the air inlet 14 and the air outlet 15 are provided on the lower box body 122, so that the PCB assembly 20 and the heat dissipation module 60 are separated and located in different chassis spaces, thereby preventing the heat of the heat dissipation module 60 and the substances in the external air from affecting the PCB assembly 20, and improving the stability and service life of the PCB assembly 20.

[0037] The heat dissipation module 60 includes a heat dissipation fan 62 and a heat sink 61. The heat dissipation fan 62 is disposed opposite to the heat sink 61. The heat dissipation fan 62 can accelerate the flow of the heat dissipation medium through the heat sink 61, thereby improving the heat dissipation efficiency.

[0038] The PCB assembly 20 includes a PCB board and a plurality of IGBT modules assembled on the front side of the PCB board. The plurality of IGBT modules are arranged in a "one"-shaped layout on the PCB board. The radiator 61 is assembled on the back side of the PCB board. The radiator 61 is in contact with a plurality of heat conduction tubes 63. The plurality of heat conduction tubes 63 correspond to the plurality of IGBT modules one by one and form a heat contact, so that the plurality of heat conduction tubes 63 are arranged in a "one"-shaped layout; the cooling fan 62 corresponds to the radiator 61 to provide a cooling air flow perpendicular to the arrangement direction of the plurality of IGBT modules to the radiator 61. In some other embodiments, the plurality of IGBT modules may also be arranged in multiple rows, for example. However, in this embodiment, the plurality of IGBT modules are arranged in a "one"-shaped layout on the PCB board, and the cooling fan 62 provides a cooling air flow perpendicular to the arrangement direction of the plurality of IGBT modules to the radiator 61, which can increase the windward area of the radiator 61 facing the heat dissipation medium, improve the heat dissipation efficiency, and enhance the heat dissipation effect.

[0039] A plurality of cooling fans 62 are provided. The plurality of cooling fans 62 are arranged in a "one"-shaped layout. The arrangement direction of the plurality of cooling fans 62 is parallel to the arrangement direction of the plurality of IGBT modules, so as to be able to enhance the flow rate of the windward surface of the radiator 61 facing the heat dissipation medium, thereby further improving the heat dissipation efficiency. In this embodiment, the cooling fan 62 is an axial flow fan with a large air volume, which can significantly improve the heat dissipation effect.

[0040] Refer to Figures 1-4 , the radiator 61 is of a cuboid structure. The length direction of the radiator 61 is parallel to the arrangement direction of the plurality of IGBT modules. Thus, the structure of the radiator 61 is adapted to the arrangement direction of the plurality of IGBT modules, which is beneficial to the heat conduction of the IGBT modules to the radiator 61 and beneficial to heat dissipation. The radiator 61 includes a bottom plate 611 and a plurality of heat dissipation fins 612 provided on the bottom plate 611. The plurality of heat dissipation fins 612 are arranged at intervals along the length direction of the radiator 61; a plurality of groups of heat conduction tubes 63 are buried on the bottom plate 611, so as to be in contact with the radiator 61. Of course, in some other embodiments, the plurality of groups of heat conduction tubes 63 may also be attached to the bottom plate 611. However, in this embodiment, the plurality of groups of heat conduction tubes 63 are buried on the bottom plate 611, and the contact area between the heat conduction tubes 63 and the bottom plate 611 is larger, and the heat conduction efficiency is higher. In this embodiment, in each group of heat conduction tubes 63, the number of each heat conduction tube 63 is four, which can further improve the heat conduction efficiency. The heat conduction tube 63 is a copper tube, and the copper tube has a better heat conduction effect.

[0041] Refer to Figures 1-3 , the air inlet 14 and the air outlet 15 of the chassis 10 are distributed on both sides perpendicular to the arrangement direction of the plurality of IGBT modules, so that the heat dissipation medium can blow vertically towards the length direction of the radiator 61, and the windward area of the radiator 61 facing the heat dissipation medium is larger, and the heat dissipation is more efficient.

[0042] Referring to Figure 2 and 6 -7, a rectangular stamping groove 1212 is provided on the surface of the skirt 1211 of the upper box body 121 in a circumferential shape. A plurality of stamping grooves 1212 are arranged at a certain interval around the surface of the skirt 1211 of the upper box body 121. The stamping groove 1212 is used for installing a floating nut, and the stamping groove 1212 can keep the floating nut sunk in the stamping groove 1212; the floating nut is used to cooperate with a screw to connect the upper cover 11 and the upper box body 121. A sealing and waterproof conductive module is assembled on the surface of the skirt 1211 of the upper box body 121. The sealing and waterproof conductive module is a module with an insulating silicone rubber with an adhesive backing and a conductive material on one side. Thus, the upper cover 11 and the upper box body 121 can be hermetically assembled, having electromagnetic sealing and water vapor sealing capabilities, and being simple to install and convenient to operate. In this embodiment, the surface of the skirt 1211 of the upper box body 121 is in a horizontal state. Of course, the surface of the skirt 1211 of the upper box body 121 can also have an appropriate curvature as long as it is adapted to the upper cover 11.

[0043] Referring to Figures 1-2 and 8-10, the wall-mounted bracket module 30 includes a wall-mounted bracket body 31 and hooks 32. The wall-mounted bracket body 31 has an "I"-shaped structure with high structural strength; the hooks 32 are in an h shape, and there are 4 of them. The 4 hooks 32 are connected to the lower box body 122, for example, by screws; the 4 hooks 32 can be hooked on the 4 arms of the "I"-shaped wall-mounted bracket body 31. Thus, the chassis 10 can be installed and suspended on the wall surface through the wall-mounted bracket module 30. The hooks 32 are set in an h shape, which can bear 4 times the weight, with high strength, convenient installation operation, and high tolerance. A reinforcing structure, such as a reinforcing plate, is provided on the inner side of the skirt where the lower box body 122 is connected to the hook 32, so as to further enhance the connection strength between the chassis 10 and the hook 32 and enhance the load-bearing capacity of the chassis 10 and the wall-mounted bracket module 30.

[0044] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes can be made to the present invention in terms of form and details without departing from the spirit and scope of the present invention defined by the appended claims, and all of them are within the protection scope of the present invention.

Claims

1. A heat dissipation module of an energy storage converter, comprising a heat dissipation fan, a heat sink and a plurality of heat pipes, wherein the heat sink is arranged in contact with the plurality of heat pipes, and the energy storage converter comprises a plurality of IGBT modules, characterized in that: The multiple groups of heat pipes correspond to the multiple IGBT modules one by one and form thermal contact, and the multiple IGBT modules are arranged in a "one" shape; the cooling fan is arranged opposite to the radiator to provide the radiator with a cooling airflow perpendicular to the arrangement direction of the multiple IGBT modules.

2. The heat dissipation module according to claim 1, characterized in that: There are multiple cooling fans, and the multiple cooling fans are arranged in a straight line. The arrangement direction of the multiple cooling fans is parallel to the arrangement direction of the multiple IGBT modules.

3. The heat dissipation module according to claim 1, characterized in that: The heat sink is a rectangular parallelepiped structure, and the length direction of the heat sink is parallel to the arrangement direction of the multiple IGBT modules.

4. The heat dissipation module according to claim 1, characterized in that: The radiator comprises a bottom plate and a plurality of radiating fins arranged on the bottom plate. The plurality of radiating fins are arranged at intervals along the length direction of the radiator. The plurality of groups of heat conducting pipes are buried in the bottom plate.

5. The heat dissipation module according to claim 1, characterized in that: Among the multiple groups of heat-conducting tubes, the number of heat-conducting tubes in each group is four, and the heat-conducting tubes are copper tubes.

6. An energy storage converter, characterized in that: At least comprises the heat dissipation module of the energy storage converter as described in any one of claims 1-5.

7. The energy storage converter according to claim 6, characterized in that: It also includes a chassis and a PCB assembly, the heat dissipation module and the PCB assembly are arranged in the chassis, the PCB assembly includes a PCB board and the multiple IGBT modules assembled on the front side of the PCB board, the radiator is assembled on the back side of the PCB board, and the chassis includes an air inlet and an exhaust port, and the air inlet and the exhaust port are distributed on both sides perpendicular to the arrangement direction of the multiple IGBT modules.

8. The energy storage converter according to claim 7, characterized in that: The chassis includes a box body, an upper cover and a lower cover, the box body includes an upper box body and a lower box body, the lower box body is assembled with the lower cover; the skirt surface of the upper box body is provided with a plurality of stamping grooves, the plurality of stamping grooves are arranged at intervals around the skirt surface of the upper box body, the stamping grooves are used to install floating nuts, the stamping grooves can keep the floating nuts sunk in the stamping grooves; the floating nuts are used to cooperate with screws to connect the upper cover and the upper box body.

9. The energy storage converter according to claim 8, characterized in that: The skirt surface of the upper box body is equipped with a sealed waterproof conductive module, which is a module with a sticky backing and a conductive material attached to one side of insulating silicone.

10. The energy storage converter according to claim 8, characterized in that: It also includes a wall-mounted bracket module, which includes a wall-mounted bracket body and a hook. The wall-mounted bracket body is an "I"-shaped structure; the hook is H-shaped, with 4 hooks connected to the lower box body, and a reinforcing structure is provided on the inner side of the skirt where the lower box body is connected to the hook.

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