CN220272574U - A chemical composition power box - Google Patents

Abstract

The utility model discloses a component-capacity power supply box, which includes: a box body capable of forming a sealed accommodation space; an electronic control module located in the enclosed accommodation space for controlling the charging and discharging of battery cores; and a fan located in the enclosed accommodation space. In the space, it is used to form a circulating air flow that can flow through the electronic control module; the heat exchanger is located in the closed accommodation space and can be connected to the cooling medium circulation system located outside the box and cools the circulating air flow; the air guide component , located in the airtight accommodation space and connected to the fan, can divide the airtight accommodation space into a first heat dissipation space located on the air outlet side of the fan and a second heat dissipation space located on the air inlet side of the fan; the first heat dissipation space and the second heat dissipation space are located on the air inlet side of the fan. The two heat dissipation spaces are connected; at least part of the electronic control module is located in the first heat dissipation space, and/or, at least part of the electronic control module is located in the second heat dissipation space. The power box can achieve uniform heat dissipation and avoid component damage caused by heat concentration in local areas.

Description

A chemical composition power box

Technical field

The utility model relates to the technical field of lithium battery charging and discharging, and in particular to a composition-component power supply box.

Background technique

The chemical composition of lithium battery cells refers to the initialization of the battery through charging and discharging, activating the active material of the battery cells, which is an energy conversion process.

The power module in the chemical composition equipment is used to charge and discharge the lithium battery and control the charging and discharging process. Under normal circumstances, the power module is cooled through air cooling, that is, the fan is used to promote the air flow near the electronic components in the power module, thereby promoting heat exchange between the electronic components and the nearby environment to achieve the purpose of heat dissipation.

However, the fan's air outlet direction is single, which often causes uneven heat dissipation inside the power module and the concentration of heat in some electronic components, leading to device damage.

Utility model content

In view of this, the purpose of the present utility model is to provide a component-capacity power supply box that can solve the problems of single air outlet direction of the fan, uneven heat dissipation, and heat concentration of some electronic components causing device damage.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

A composition and capacitance power supply box includes:

The box can form a sealed storage space;

An electronic control module, located in the sealed accommodation space, is used to control the charging and discharging of battery cells;

A fan, located in the sealed accommodation space, is used to form a circulating air flow that can flow through the electronic control module 0;

A heat exchanger, located in the sealed accommodation space, can be connected to the cooling medium circulation system located outside the box, and cool the circulating air flow;

An air guide member is located in the airtight accommodation space, connected to the fan, and capable of dividing the airtight accommodation space into a first heat dissipation space located on the air outlet side of the fan and an air inlet space located on the air inlet side of the fan. The second heat dissipation space on the side of the Describe the second heat dissipation space.

Optionally, in the above-mentioned capacitive power supply box, the heat exchanger is fixedly installed on the air inlet side of the fan;

Alternatively, the heat exchanger is fixedly installed on the air outlet side of the fan.

Optionally, in the above-mentioned capacitive power supply box, multiple fans are arranged side by side along the X direction;

The air guide member is provided on one side of the fan, or the air guide members are provided on both sides of the fan.

Optionally, in the above-described capacitive power supply box, the air guide member includes a first air guide plate and a second air guide plate:

One end of the first air guide plate is connected to the radial outer frame of the fan, and the other end extends in a direction away from the fan and is connected to the second air guide plate. The sealed accommodation space passes through the The first air guide plate is divided into the first heat dissipation space and the second heat dissipation space;

One end of the second air guide plate is connected to the first air guide plate, and the other end extends toward the air inlet side of the fan. An intermediate point is formed between the second air guide plate and the side wall of the box. Cooling space.

Optionally, in the above capacitive power supply box, in at least part of the air guide member, the width dimension of the second air guide plate in the X direction is smaller than the width of the first air guide plate in the X direction. size.

Optionally, in the above-mentioned capacitive power supply box, a plurality of the air guide members are arranged side by side along the X direction; a first ventilation gap greater than zero is provided between adjacent air guide members.

Optionally, in the above-mentioned capacitive power supply box, in the X direction, the width dimension of the first ventilation gap is smaller than the width dimension of the adjacent air guide member.

Optionally, in the above chemical composition power box, the heat exchanger includes cooling water pipes arranged side by side, and a second ventilation gap is formed between adjacent cooling water pipes.

Optionally, in the above-described capacitive power supply box, the heat exchanger includes heat dissipation fins arranged side by side, and a third ventilation gap is formed between adjacent heat dissipation fins.

Optionally, the above-described chemical composition power supply box further includes a liquid cooling module, and the liquid cooling module is connected to the cooling water pipe.

Optionally, in the above-described component-capacitated power supply box, the electronic control module includes:

The first electronic control module is located close to the top plate of the box and is located on the air outlet side or the air inlet side of the fan;

And/or, the second electronic control module is arranged close to the bottom plate of the box and is located on the air inlet side or the air outlet side of the fan.

Optionally, in the above-mentioned component-capacitated power supply box, the liquid cooling module includes:

A first liquid cooling radiator is located between the first electronic control module and the top plate;

And/or, a second liquid cooling radiator is located between the second electronic control module and the base plate.

Optionally, a desiccant is also provided in the above chemical composition power box.

In the chemical composition power supply box provided by the utility model, a low-temperature heat dissipation airflow can be formed through the fan and the heat exchanger. The low-temperature heat dissipation airflow is guided to the above-mentioned first heat dissipation space and the second heat dissipation space through the air guide member, and is circulated in the box. Forming a circulation, that is, the air flow circulation path (i.e. fan outlet, first heat dissipation space, second heat dissipation space, fan air outlet) can be formed in the box through the structure of the air guide member itself, and the heat dissipation air flow is guided to the position to be heat dissipated stably. Circulation achieves uniform heat dissipation to achieve the purpose of reducing the internal temperature of the box, thereby cooling the electronic control module and avoiding damage to components caused by heat concentration in local areas.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description These are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is an isometric view of a component-capacitance power supply box provided by an embodiment of the present utility model;

Figure 2 is a cross-sectional view of section A-A in Figure 1; (the dotted line in the figure indicates the direction of partial air flow circulation)

Figures 3 and 4 are isometric views of the air-cooling module provided by the embodiment of the present invention at different angles;

Figure 5 is a front view of the combined structure of the air cooling module and the second liquid cooling radiator provided by the embodiment of the present invention;

Figure 6 is an isometric view of the combined structure of the air cooling module and the second liquid cooling radiator provided by the embodiment of the present invention;

Figure 7 is a front view of the internal components of the composition and capacitance power box provided by the embodiment of the present utility model;

Figure 8 is an isometric view of the internal components of the composition and capacitance power supply box provided by the embodiment of the present utility model;

Figures 9 and 10 are respectively isometric views at different angles of the first liquid cooling radiator provided by the embodiment of the present invention;

Figures 11 and 12 are respectively isometric views at different angles of the second liquid cooling radiator provided by the embodiment of the present utility model;

Figure 13 is an assembly structure of the air cooling device, the second liquid cooling radiator and the second electronic control module provided by the embodiment of the present invention;

Figure 14 is a schematic structural diagram of the front (i.e., the fourth side) provided with a second liquid cooling radiator and two sets of second electronic control modules according to an embodiment of the present invention;

Figure 15 is a front view of the second electric control module on the right side in Figure 14;

Figure 16 is a schematic structural diagram of the back (ie, the third side) of the second left electronic control module in Figure 14;

Figure 17 is a schematic structural diagram of the back of a third circuit board provided by the embodiment of the present invention.

in:

in:

1-box, 2-current positive interface, 3-current negative interface,

4-cooling water inlet, 5-cooling water outlet, 6-signal wire terminal,

7-Tightness detection port, 8 current terminal outlet, 9-base plate,

101-top plate, 102-bottom plate,

11-Air guide component, 12-Fan, 13-Heat exchanger, 14-Quick connector, 15-Second support,

111-the first air guide plate, 112-the second air guide plate, 113-the first ventilation gap,

20-Electronic control module,

201-the first electronic control module, 202-the second electronic control module,

211-first circuit board, 212-second circuit board,

221-The third circuit board, 222-The fourth circuit board,

21-inductor, 22-capacitor, 23-mos tube,

30-liquid cooling unit, 301-metal plate, 302-liquid cooling pipe,

31-First liquid cooling radiator, 32-Second liquid cooling radiator, 311-First support,

33-liquid leakage detection component, 331-liquid leakage detection board, 332-liquid leakage control board, 333-stud,

34-Copper row.

Detailed ways

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

Please refer to Figures 1 to 17. An embodiment of the present utility model provides a component-capacity power supply box (referred to as a power supply box). The power supply box includes a box 1, an electric control module 20 and an air-cooling module. The air-cooling module includes a fan. 12. Heat exchanger 13 and air guide member 11. Among them: the box 1 can form a sealed accommodation space; the electronic control module 20 is located in the sealed accommodation space and is used to control the charging and discharging of the battery core; the fan 12 is located in the sealed accommodation space and is used to form a closed accommodation space that can flow through the electronic control module 20 The circulating air flow; the heat exchanger 13 is located in the closed accommodation space, can be connected to the cooling medium circulation system located outside the box 1, and cools the circulating air flow; the air guide member 11 is located in the closed accommodation space, and is connected with the fan 12 connection, the sealed accommodation space can be divided into a first heat dissipation space T1 located on the air outlet side of the fan 12 and a second heat dissipation space T2 located on the air inlet side of the fan 12. The first heat dissipation space T1 and the second heat dissipation space T2 are connected. , so that the cooling air flow self-circulation channel can be constructed in the box 1 through the air guide member 11 . It should be noted that, in general, at least part of the area of the electronic control module 20 is located in the above-mentioned heat dissipation air flow self-circulation channel. That is, at least part of the electronic control module 20 is located in the first heat dissipation space T1, and/or at least part of the electronic control module 20 is located in the second heat dissipation space T2. During specific implementation, the circulating air flow can cover at least part of the area or even the entire area to be heat dissipated according to actual needs of the electronic control module 20 .

When the power box is working, the temperature of the heating electronic components in the electronic control module 20 is relatively high. In order to cool down the electronic components, a low-temperature heat dissipation airflow is formed through the fan 12 and the heat exchanger 13 in the air cooling module. The low-temperature heat dissipation airflow is guided to the above-mentioned first heat dissipation space T1 and the second heat dissipation space T2 through the air guide member 11, and forms a circulation inside the box. That is, the air flow circulation path can be formed in the box through the structure of the air guide member 11 ( That is, the fan air outlet, the first heat dissipation space, and the second heat dissipation space. The fan air outlet) guides the heat dissipation airflow to the position to be heat dissipated, and circulates stably to achieve uniform heat dissipation and reduce the internal temperature of the box, thereby controlling the electronic control The module 20 cools down and dissipates heat to avoid damage to components caused by heat concentration in local areas.

For specific implementation, please refer to Figures 3 and 4. The heat exchanger 13 can be fixedly installed on the air inlet side of the fan 12; or, the heat exchanger 13 can also be fixedly installed on the air outlet side of the fan 12. The heat exchanger 13 can cool down the heat dissipation air flow promoted by the fan 12 to form a cooling air flow. When the cooling air flow reaches the vicinity of the electronic control module, it can exchange heat with the heating electronic components to achieve heat dissipation.

Preferably, a plurality of fans 12 are arranged side by side along the X direction. At this time, the air guide member 11 may be provided on one side of the fans 12 arranged side by side, or the air guide members 11 may be provided on both sides of the fans 12 arranged side by side.

In a possible embodiment, please refer to FIG. 2 , the box 1 includes a top plate 101 and a bottom plate 102 that are opposite to each other; the electronic control module 20 includes a first electronic control module 201 located close to the top plate 101 , and a third electrical control module 201 located close to the bottom plate 102 . Two electric control modules 202; the first electric control module 201 and the second electric control module 202 are respectively located on the air outlet side and the air inlet side of the fan 12. However, it is not limited to this. In other specific embodiments, only the above-mentioned first electronic control module 201 or only the above-mentioned second electronic control module 202 can be provided according to actual needs, or a larger number or other structures can be provided. Electronic control module, or electronic control module installed at other locations, technicians can make specific adjustments according to actual needs when conducting specific design and manufacturing. The electronic control module 20 with the above structure provided by the present invention is only a preferred embodiment.

Referring to FIGS. 3 to 6 , in a possible embodiment, the air guide member 11 includes a first air guide plate 111 and a second air guide plate 112 ; one end of the first air guide plate 111 is connected to the radial outer surface of the fan 12 The other end extends away from the fan 12, thereby forming a first heat dissipation space T1 between the first circuit board 211 in the first electronic control module 201, which is close to the top plate 101 and arranged parallel to the top plate 101. The first circuit board 211 in the control module 201 performs cooling and heat dissipation; one end of the second air guide plate 112 is connected to the first air guide plate 111, and the other end extends in a direction close to the bottom plate 102, thereby forming a gap between the second air guide plate 112 and the side wall of the box. The intermediate heat dissipation space T3 is used to cool down and dissipate heat from the copper bars 34 in this area. In addition, a second heat dissipation space T2 is formed between the first air guide plate 111 and the third circuit board 221 in the second electronic control module 202 which is close to the base plate 102 and arranged parallel to the base plate 102 . The third circuit board 221 performs cooling and heat dissipation.

Specifically, please refer to the dotted arrows in Figure 2: when the fan 12 is working, a cooling airflow is generated in the box 1, and the airflow circulation path passes through the air outlet of the fan 12, the first cooling space T1, the intermediate cooling space T3, and the third cooling space in sequence. The second heat dissipation space T2 and the air inlet of the fan 12 form a heat dissipation air circulation path, which can fully dissipate heat for the first electronic control module 201 and the second electronic control module 202 .

It can be seen that the structure of the fan 12 and the air guide member 11 in the air cooling module can cooperate with the first electronic control module 201 and the second electronic control module 202 in the box 1 to form an air flow circulation path and guide the heat dissipation air flow. To the position where the electronic control module is located, the cooling airflow covers all the areas to be heat dissipated in the electronic control module and forms a stable circulation to achieve uniform heat dissipation, which can effectively avoid the problem of component damage caused by heat concentration in local areas of the electronic control module.

Please refer to Figures 2 and 3. In the preferred embodiment, the end of the first air guide plate 111 away from the fan 12 is closer to the first electronic control module 201 than the end connected to the fan 12, so as to guide the heat dissipation airflow to the first electronic control module 201. The module 201 is located to dissipate heat from it.

Furthermore, in a preferred embodiment, the width dimension of the second air guide plate 112 in at least part of the air guide member 11 in the X direction is smaller than the width dimension of the first air guide plate 111 in the X direction. That is, b>c in FIG. 2 and FIG. 3 , thus forming a ventilation gap s near the second air guide plate 112 . During the cooling air circulation process, part of the air flow is transported to the vicinity of the second electronic control module 202 along the second air guide plate 112 to ensure comprehensive heat dissipation of the parts in the path, that is, to ensure that the copper bars 34 on both sides of the electronic control module and other nearby components are The devices can all be well ventilated and dissipated; at the same time, through the ventilation gaps s, part of the airflow can be quickly returned, which is beneficial to improving heat dissipation efficiency.

Moreover, in a preferred embodiment, multiple air guide members 11 are located on both sides of the fan 12 and are arranged side by side along the X direction, and a first ventilation gap 113 greater than zero is provided between adjacent air guide members 11 . Furthermore, preferably, in the X direction, the width dimension of the first ventilation gap 113 is smaller than the width dimension of the air guide member 11 adjacent thereto. Specifically, referring to Figures 2 and 3, the width dimension a of the first ventilation gap 113 in the X direction is > zero. Therefore, part of the air flow from the fan 12 is directed to both sides of the control module through the first air guide plate 11, extending the circulation path of the heat dissipation air flow; and part of the air flow directly reaches the second electronic control module 202 through the first ventilation gap 113. nearby to dissipate heat. Moreover, part of the air flow can be quickly returned through the first ventilation gap 113, which is beneficial to improving air flow circulation efficiency and heat dissipation efficiency. In addition, through the first ventilation gap 113, the first air guide plate 11 can be prevented from excessively blocking the first electronic control module 201 and the second electronic control module 202, which is conducive to increasing the diversity of air flow paths and improving the heat dissipation effect.

Specifically, the heat exchanger 13 includes cooling water pipes arranged side by side, and a second ventilation gap is formed between adjacent cooling water pipes; and/or the heat exchanger 13 includes heat dissipation fins arranged side by side, and between adjacent heat dissipation fins. constitutes the third ventilation gap.

Further, a liquid cooling module is also provided in the power box, and the liquid cooling module is connected to the cooling water pipe. When the power box is working, liquid cooling medium flows through both the liquid cooling module and the heat exchanger 13. The liquid cooling module is used to directly dissipate heat to nearby electronic control modules, and the heat exchanger 13 is used to reduce the temperature of nearby air to form cooling air. , and then the cooling airflow is formed by the fan 12, which can enter the narrow gaps of the electronic control module and dissipate heat to the electronic components in each area.

For specific implementation, please refer to FIG. 2 and FIG. 5 to FIG. 17 . The above-mentioned liquid cooling module includes a first liquid cooling row 31 and a second liquid cooling row 32 . Among them, the first liquid cooling radiator 31 is located between the first electronic control module 201 and the top plate 101; the second liquid cooling radiator 32 is located between the second electronic control module 202 and the bottom plate 102. The electronic control module 20 is located between the first liquid cooling radiator 31 and the second liquid cooling radiator 32 , so that the electronic control module 20 can be fully dissipated through the first liquid cooling radiator 31 and the second liquid cooling radiator 32 . However, it is not limited to this. In other specific embodiments, only the above-mentioned first liquid cooling radiator 31 or only the above-mentioned second liquid cooling radiator 32 may be provided according to actual needs, or a greater number of liquid cooling radiators may be provided. , or set up a liquid cooling radiator at other locations, and technicians can make specific adjustments according to actual needs when conducting specific design and manufacturing. The arrangement of the electronic control module 20 between the first liquid cooling radiator 31 and the second liquid cooling radiator 32 provided by the present invention is only a preferred embodiment.

In addition, in order to avoid condensation of water vapor in the air caused by liquid cooling, the box 1 of the power box provided by the present utility model is a sealed box, forming a sealed accommodation space. The above-mentioned electronic control module 20, air cooling module, liquid cooling module and heat exchanger The containers 13 are all located in a sealed storage space, thereby preventing air from outside the box from entering the box and preventing external air from entering the box for pre-cooling and condensation.

Furthermore, a desiccant can also be provided inside the box to dry the air in the box to further avoid condensation of water vapor.

During specific implementation, the electronic control module 20 includes a circuit board located in a sealed accommodation space, and a current interface provided on the panel of the box 1 . The current interface is electrically connected to the circuit board and is installed on the side wall of the box 1 , sealingly connected with the side wall of the box to ensure that a sealed accommodation space can be formed in the box 1 . Alternatively, in other embodiments, the current interface can also be arranged outside the box 1. At this time, the connection harness between the current interface and the circuit board is sealingly connected to the side wall of the box to ensure that a sealed volume can be formed inside the box 1. placement space.

During specific implementation, the water-cooling pipe inlet and outlet in the liquid cooling module located in the box 1 is connected to the water pipe interface provided on the side wall of the box. The water pipe interface is sealingly connected to the box panel to ensure that the inside of the box 1 can be sealed. accommodation space. Or, in other embodiments, the water pipe interface can also be set outside the box module 1. At this time, the connecting pipe between the water pipe interface and the liquid cooling device is sealed with the box panel to ensure that the water pipe interface can be formed inside the box module 1. Confined containment space.

It can be seen that the component power supply box provided by the present utility model adopts a sealed structure box 1 and an air cooling plus liquid cooling method for heat dissipation. Compared with the air cooling heat dissipation method, it has higher heat dissipation efficiency and can meet the needs of large current charging. The heat dissipation requirements of discharge can be achieved to achieve rapid cooling, thereby improving the safety performance of the component power supply box. Moreover, the use of liquid cooling to dissipate heat from the bypass box can also ensure uniform distribution of heat dissipation efficiency, achieve precise heat dissipation, and avoid damage to electronic components and safety hazards caused by excessive local temperatures. In addition, it can also facilitate heat recovery and increase energy. usage efficiency. In addition, since the inside of the box 1 is a sealed environment, the temperature of the chemical composition storage will not be affected.

It should be noted here that since the power box uses a sealed structure box 1, the electronic control module and the liquid cooling module can be sealed in a sealed accommodation space through the box 1, which can prevent air circulation inside and outside the box. , to prevent moisture in the air outside the box from entering the box and encountering cold condensation. Even if the moisture originally present in the air in the box will condense due to the drop in temperature inside the box, the total amount of moisture is difficult to form water droplets and affect the life of the circuit boards and electronic components in the bypass box. Therefore, the chemical composition power box provided by the present utility model can greatly improve the heat dissipation efficiency through air cooling and liquid cooling, and the problem of condensation and water dripping will not occur.

For specific implementation, please refer to FIG. 8 . The first liquid cooling row 31 includes one or more liquid cooling units 30 , and each liquid cooling unit 30 includes at least one liquid cooling pipe 302 . Furthermore, at least part of the liquid cooling unit 30 is also provided with a metal plate 301. The metal plate 301 is located outside the liquid cooling pipe 302 and is fixedly connected to the outer wall of the liquid cooling pipe 302, for fixedly installing the liquid cooling pipe 302 on the bracket, so that The liquid cooling pipe 302 in the first liquid cooling row 31 is fixedly installed in the box through the metal plate 301 and the bracket (for example, see the first bracket 311 in FIG. 8 ). Similarly, the second liquid cooling row 32 includes one or more liquid cooling units 30 (not all are marked in the figure), and each liquid cooling unit 30 includes at least one liquid cooling pipe 302 . Further, at least part of the liquid cooling unit 30 is also provided with a metal plate 301. The metal plate 301 is located outside the liquid cooling pipe 302 and is fixedly connected to the outer wall of the liquid cooling pipe 302 for fixedly installing the liquid cooling pipe 302 on the base plate 9. Therefore, the liquid cooling pipe 302 in the second liquid cooling row 32 is fixedly installed in the box through the metal plate 301 and the bottom plate 9 . Generally speaking, the liquid cooling pipes 302 can be provided on both sides of the metal plate 301, or the liquid cooling pipes 302 can be provided only on one side of the metal plate 301. The metal plate 301 can not only achieve the above-mentioned fixed installation purpose, but also can achieve the purpose of fixed installation. The heat dissipation range of the liquid cooling pipeline 302 can be expanded, which is beneficial to expanding the contact area between the liquid cooling device and the electronic control module, and is beneficial to reducing the number of pipeline arrangements.

In specific implementation, the liquid cooling unit 30 preferably adopts a metal component with an integrated structure. For example, the metal plate 301 and the liquid cooling pipe 302 are welded or cast to form an integrated structure, or they can also be made by other machining methods.

For specific implementation, please refer to Figures 7 to 10. The first liquid cooling row 31 is provided with multiple liquid cooling units 30 side by side in a direction parallel to the top plate 101. Each liquid cooling unit 30 is provided with at least one or more liquid cooling strips. Pipe 302; and/or, please refer to Figure 2, Figure 11 and Figure 12, the second liquid cooling row 32 is provided with multiple liquid cooling units 30 side by side in a direction parallel to the base plate 102, and each liquid cooling unit 30 is provided with at least one Liquid cooling pipe 302. Therefore, as shown in Figure 15, the electronic components and liquid cooling pipes 302 such as the capacitor 22, the inductor 21, the MOS tube 23 and other high calorific values in the electronic control module 20 can be arranged at intervals and in contact with each other to achieve sufficient heat dissipation. , which can effectively avoid problems such as damage to components where heat is concentrated in individual areas.

Specifically, please refer to Figures 15 to 17. The capacitor 22 and the MOS tube 23 in the electronic control module 20 are in contact with the metal plate 301 of the liquid cooling device and the liquid cooling pipe 302 of the liquid cooling device. The inductor 21 is clamped between two liquid cooling pipes 302. Furthermore, a thermally conductive insulating glue is placed between the liquid cooling unit 30 and the electronic components that are in contact with each other for heat conduction, so that a large amount of heat generated by the above-mentioned heating electronic components can be taken away by the liquid cooling unit 30, ensuring that the electronic components can operate at the appropriate temperature. Working at a certain temperature to ensure service life.

During specific implementation, it is preferable to connect all the liquid cooling pipes 302 in the liquid cooling device in series, so as to ensure that there is sufficient flow of cooling water in each liquid cooling pipe 302 to ensure the cooling effect.

During specific implementation, the pipe joints of the liquid cooling pipes 302 in each liquid cooling unit 30 of the liquid cooling device are preferably stainless steel quick-plug joints, so that rapid assembly can be achieved.

Specifically, please refer to Figure 7, and Figures 14 to 17. The electronic control module 20 mentioned herein includes a first electronic control module 201 and a second electronic control module 202, which are used to connect the battery to be inspected in the chemical composition and capacitance equipment. The charging and discharging currents are specifically controlled. Among them: the first electronic control module 201 includes a plurality of first circuit boards 211 arranged side by side. The two sides of the first circuit board 211 are a first side and a second side respectively. The first side is attached to the first liquid cooling radiator 31 Arranged, the second circuit board 212 is arranged vertically on the second side; the second electronic control module 202 includes a plurality of third circuit boards 221 arranged side by side, and the two sides of the third circuit board 221 are the third side and the fourth side respectively. The third side is arranged closely with the second liquid cooling radiator 32, and a fourth circuit board 222 is vertically arranged on the fourth side; a plurality of fourth circuit boards 222 and a plurality of second circuit boards 212 are arranged at intervals.

Specifically, the first side of the first circuit board 211 is provided with heat-generating electronic components, and the liquid cooling pipe 302 in the first liquid cooling module 31 is embedded between adjacent heat-generating electronic components located on the first side, and /Or, the heat-generating electronic components located on the first side are embedded between adjacent liquid cooling pipes 302 in the first liquid cooling module 31; and/or, the third side of the third circuit board 221 is provided with heat-generating electronic components. Components, the liquid cooling pipe 302 in the second liquid cooling module 32 is embedded between adjacent heat-generating electronic components located on the third side, and/or the heat-generating electronic components located on the third side are embedded in the third side. between adjacent liquid cooling pipes 302 in the two liquid cooling modules 32 . For details, please refer to the capacitor 22, the mos tube 23 and the inductor 21 in Figure 2 and Figure 11.

For specific implementation, please refer to FIGS. 3 to 7 . In the air-cooling module, multiple fans 12 are arranged side by side along the arrangement direction of the second circuit board 212 . During the heat dissipation process, the air outlet direction of the fan 12 is toward the plane where the first circuit board 211 is located; one end of the air guide member 11 is connected to the fan 12, and the other end is provided with a plurality of air guide fins, respectively located on the adjacent second circuit board. 212 and the fourth circuit board 222; the heat exchanger 13 is located on the air inlet side of the fan 12, and may specifically be cooling water pipes arranged side by side (as shown in Figure 4), or heat dissipation fins (not shown in the figure) . Preferably, the inlets and outlets at both ends of the cooling water pipe are respectively provided with quick-plug connectors 14, which are connected to the liquid cooling device through connecting pipes.

During specific implementation, as shown in Figure 7, two sets of electronic control modules 20 are arranged side by side between the first liquid cooling radiator 31 and the second liquid cooling radiator 32, and the air cooling module is installed on the base plate 9 through the second support 15. , located between the two groups of electronic control modules 20. Therefore, heat can be dissipated to the electronic control modules 20 on both sides at the same time.

For specific implementation, please refer to Figure 2, and Figures 7 to 12. The second liquid cooling radiator 32 is installed on the bottom plate 9, and the first liquid cooling radiator 31 passes through the bracket structure (for details, please refer to the first liquid cooling radiator 32 in Figures 5 and 6. The support 311) is fixedly installed on the bottom plate 9, and the bottom plate 9 is fixedly installed on the inner side of the box bottom plate. The water inlets and outlets at both ends of the liquid cooling pipes 302 in the first liquid cooling radiator 31 and the second liquid cooling radiator 32 form a series pipeline (preferably) or a parallel pipeline through water pipe joints and connecting water pipes, and are connected to the water pipe interface (including cooling Water inlet 4 and cooling water outlet 5), the water pipe interface is arranged on the side wall of the box 1. Moreover, the water inlet and outlet of the heat exchanger 13 located on the fan outlet side as mentioned above are also connected to the liquid cooling module through water pipe joints and connecting water pipes, or connected to the water pipe interface located on the side wall of the box. During specific implementation, the water pipe interface (including the cooling water inlet 4 and the cooling water outlet 5) is connected to the external circulation system, so that the lower temperature can be transported to the liquid cooling device and the heat exchanger 13 in the bypass box through the external circulation system. Cooling medium, after the cooling medium exchanges heat with the air in the box and the electronic components in the box during the process of passing through the bypass box, it is output out of the box through the cooling water outlet 5, and circulates in this way, thereby realizing the control of the electronic control module in the bypass box. Continuous heat dissipation.

In the preferred embodiment, the box 1 is a welded box. As shown in Figure 1, the side wall of the box 1 is provided with a current positive interface 2, a current negative interface 3, a water pipe interface (including a cooling water inlet 4 and a cooling water outlet 5), a signal wire terminal 6, and a current terminal outlet 8. Each interface is separately sealed (specifically through a gasket or sealant or other sealing means), so that the entire box 1 can be in a sealed state. However, it is not limited to this. In other possible embodiments, the above-mentioned interface can also be led out of the box through a connecting wire harness or a connecting tube, and then the connecting wire harness can be passed through the side wall of the box and the side wall of the box. The position of the outlet connecting pipe is sealed so that the entire box body 1 is in a sealed state.

Furthermore, the box 1 is also provided with a sealing detection port 7, which can be connected to an external detection system to detect the air tightness in the bypass box at any time. Moreover, the bypass box is equipped with a leakage detection component 33, which will alarm and disconnect the circuit once leakage occurs.

Specifically, the liquid leakage detection component 33 may be a plurality of sensors distributed in different areas on the inner side of the box bottom plate, for detecting liquid leakage at various locations. Or in other specific embodiments, the bottom plate of the box can also be arranged at an angle, and the liquid leakage detection component 33 can be arranged at the lowest position. For example, please refer to Figure 8. The liquid leakage detection assembly 33 includes a liquid leakage control plate 332 and a liquid leakage detection plate 331. The liquid leakage detection plate 331 is fixedly installed on the base plate 9, and the liquid leakage control plate 332 is fixedly installed on the base plate 9 through mounting studs 333. On base plate 9. Therefore, the leakage detection component 33 is basically located at the lowest point in the entire bypass box. If leakage occurs in the box, it will be sensed by the leakage detection board 331 and the entire power circuit will be cut off through the leakage control board 332. Protect the power supply.

Specifically, all the liquid cooling pipes 302 in the liquid cooling device 33 are connected in series, which can ensure that there is sufficient flow of cooling water in each liquid cooling pipe 302 to ensure the cooling effect. Each pipe joint is made of stainless steel. Plug connectors enable quick assembly.

In summary, it can be seen that the embodiment of the present invention provides an air-cooled and water-cooled circulating heat dissipation system to dissipate heat from the bypass box and can take away a large amount of heat sources. When the bypass box is working, the air flow circulation path generated by the air cooling module can be seen as the dotted arrow in Figure 2. After the air inside the box passes through the heat exchanger 13, it becomes cold air, and then the fan 12 blows the cold air onto the first electronic control module 201 and its heating electronic components. Under the action of the air guide member 11, the cold air flows to The second electronic control module 202 finally passes through the heat exchanger 13, thereby forming a circulation in the bypass box, which can achieve the purpose of reducing the internal temperature of the box. Among them, the second circuit board 212 of the first electronic control module 201 and the fourth circuit board 204 of the second electronic control module 202 are equipped with many electronic components that generate less heat. The cost of using laminate water cooling is higher, and using new type water cooling is very expensive. Air cooling is more suitable, and the above-mentioned circulating cooling air can also cool down the 37 copper bars on the electronic control module 20.

In addition, embodiments of the present invention also provide a chemical composition and capacitance equipment, which is provided with the chemical composition and capacitance power box described above.

Finally, it should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or any such actual relationship or sequence between operations. Furthermore, the terms "comprises," "comprises," or any other variations thereof are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also those not expressly listed other elements, or elements inherent to the process, method, article or equipment. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article, or apparatus that includes the stated element.

Each embodiment in this specification is described in a progressive manner. Each embodiment focuses on its differences from other embodiments. The same and similar parts between the various embodiments can be referred to each other.

The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be practiced in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A component-capacitance power supply box, which is characterized in that it includes: The box (1) can form a sealed accommodation space; An electronic control module (20) is located in the sealed accommodation space and is used to control the charging and discharging of battery cells; A fan (12), located in the sealed accommodation space, is used to form a circulating air flow that can flow through the electronic control module (20); The heat exchanger (13) is located in the closed accommodation space, can be connected to the cooling medium circulation system located outside the box (1), and cools the circulating air flow; An air guide member (11) is located in the airtight accommodation space and is connected to the fan (12). It can divide the airtight accommodation space into a first heat dissipation unit located on the air outlet side of the fan (12). The space (T1) is connected to the second heat dissipation space (T2) located on the air inlet side of the fan (12); the first heat dissipation space (T1) and the second heat dissipation space (T2) are connected; at least part of the The electronic control module (20) is located in the first heat dissipation space (T1), and/or, at least part of the electronic control module (20) is located in the second heat dissipation space (T2). 2. The chemical composition power supply box according to claim 1, characterized in that the heat exchanger (13) is fixedly installed on the air inlet side of the fan (12); Alternatively, the heat exchanger (13) is fixedly installed on the air outlet side of the fan (12). 3. The composition and capacitance power supply box according to claim 1, characterized in that there are multiple fans (12) arranged side by side along the X direction; The air guide member (11) is provided on one side of the fan (12), or the air guide members (11) are provided on both sides of the fan (12). 4. The chemical composition power box according to claim 1, characterized in that the air guide member (11) includes a first air guide plate (111) and a second air guide plate (112): One end of the first air guide plate (111) is connected to the radial outer frame of the fan (12), and the other end extends in a direction away from the fan (12) and is connected with the second air guide plate (112). ) connection, the sealed accommodation space is divided into the first heat dissipation space (T1) and the second heat dissipation space (T2) through the first air guide plate (111); One end of the second air guide plate (112) is connected to the first air guide plate (111), and the other end extends toward the air inlet side of the fan (12). The second air guide plate (112) An intermediate heat dissipation space (T3) is formed between it and the side wall of the box (1). 5. The composition and capacitor power supply box according to claim 1, characterized in that a plurality of the air guide members (11) are arranged side by side along the X direction; A first ventilation gap (113) greater than zero is provided between adjacent air guide members (11). 6. The chemical composition power supply box according to claim 1, characterized in that the heat exchanger (13) includes cooling water pipes arranged side by side, and a second ventilation gap is formed between adjacent cooling water pipes. 7. The chemical composition power supply box according to claim 1, characterized in that the heat exchanger (13) includes heat dissipation fins arranged side by side, and a third ventilation gap is formed between adjacent heat dissipation fins. . 8. The component power supply box according to claim 1, characterized in that the electronic control module (20) includes: The first electronic control module (201) is located close to the top plate (101) of the box (1) and is located on the air outlet side or the air inlet side of the fan (12); And/or, the second electronic control module (202) is provided close to the bottom plate (102) of the box (1) and is located on the air inlet side or the air outlet side of the fan (12). 9. The composition and capacity power supply box according to claim 8, characterized in that it also includes a liquid cooling module, and the liquid cooling module includes: The first liquid cooling radiator (31) is located between the first electronic control module (201) and the top plate (101); And/or, a second liquid cooling row (32) is located between the second electronic control module (202) and the base plate (102). 10. The chemical composition power supply box according to claim 1, characterized in that a desiccant is provided in the box (1).