Spraying type liquid cooling vehicle-mounted charger

Abstract

The utility model belongs to the field of vehicle-mounted chargers, and particularly relates to a spraying type liquid cooling vehicle-mounted charger, which comprises a sealed heat conduction box body, an electricity storage device, a spraying device, a circulating device and a heat dissipation device, fins are further arranged on the outer surface of the box body; the electricity storage device and the spraying device are arranged in the box body; a liquid inlet and a liquid outlet are formed in the box body; the circulating device and the heat dissipation device are arranged outside the box body, the two ends of the circulating device are communicated with a liquid inlet pipeline and a liquid outlet pipeline respectively, the liquid inlet pipeline is communicated with the liquid inlet, the liquid outlet pipeline is communicated with the liquid outlet, cooling liquid is further injected into the box body, and the circulating device is used for driving the cooling liquid to flow out of the box body from the liquid outlet and then flow back to the spraying device from the liquid inlet. And the heat dissipation device is used for dissipating heat of the cooling liquid in the liquid inlet pipeline and / or the cooling liquid in the liquid outlet pipeline. According to the utility model, the problem of high energy consumption of a traditional spraying type liquid cooling vehicle-mounted charger is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of vehicle charger, more particularly, relate to a kind of spray type liquid cooling vehicle charger. BACKGROUND

[0002] OBCM (On-Board Charger Module) is the main component of electric vehicle, and is the battery equipment for charging battery pack. The improvement of the requirement of electric vehicle fast charging requires the improvement of the processing capacity of charging module. In the use environment of fast charging, the heat generation of charging module is large, and the phenomenon of over-temperature occurs, which leads to the decrease of charging power and cannot meet the use requirement of fast charging.

[0003] In the prior art, spray type liquid cooler is often used to cool vehicle charger, but the traditional spray type liquid cooler needs to consume a large amount of energy when working, which increases the energy consumption of automobile. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming at least one of the above-mentioned defects of prior art, and provides a liquid cooling vehicle charger to solve the problem of high energy consumption of traditional spray type liquid cooling vehicle charger.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A spray type liquid cooling vehicle charger, characterized in that,

[0007] comprising a sealed heat-conducting box body, a power storage device, a spraying device, a circulating device and a heat dissipation device;

[0008] The outer surface of the box body is also provided with fins;

[0009] The power storage device and the spraying device are arranged inside the box body, and the spraying direction of the spraying device faces the power storage device;

[0010] The box body is provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are arranged vertically, and the spraying device is connected to the liquid inlet from the inside of the box body;

[0011] The circulating device and the heat dissipation device are arranged outside the box body, and the circulating device is connected to the liquid inlet and the liquid outlet at both ends, respectively, the liquid inlet is connected to the liquid inlet from the outside of the box body, the liquid outlet is connected to the liquid outlet from the outside of the box body, and the box body is also filled with cooling liquid, the circulating device is used to drive the cooling liquid to flow out of the box body from the liquid outlet and return to the spraying device from the liquid inlet, and the heat dissipation device is used to dissipate heat of the cooling liquid in the liquid inlet and / or the cooling liquid in the liquid outlet.

[0012] In the scheme, the cooling liquid flows in the circulating pipeline composed of the liquid outlet pipeline and the liquid inlet pipeline under the action of the circulating pump, then flows into the box and is sprayed by the spraying device to form liquid drops with a certain speed adhering to the electricity storage device, the liquid drops flow over the surface of the electricity storage device at a certain speed under the action of inertia or gravity, take away the heat, the liquid drops collecting the heat of the electricity storage device converge at the bottom of the box, and the liquid drops collecting the heat of the electricity storage device flow into the heat exchange device through the pipeline under the action of the circulating pump to realize heat exchange, and the cooling liquid after cooling is sprayed again through the spraying device to complete a cycle.

[0013] The fins are arranged on the outer surface of the box, when the cooling liquid with heat is accumulated at the bottom of the box due to its own gravity, the fins increase the contact area of the box with air to accelerate the removal of the heat absorbed by the box, thereby preliminarily indirectly cooling the cooling liquid, saving the energy consumption of the heat dissipation device, thereby achieving the purpose of energy saving of the automobile.

[0014] Further, the spraying device is arranged above the electricity storage device.

[0015] The electricity storage device is usually arranged at the bottom of the box, and the spraying device is arranged to face the electricity storage device for spraying, so that the electricity storage device has the maximum spraying area, and in addition, the cooling liquid sprayed above the electricity storage device can also flow down the surface of the electricity storage device under the action of gravity, thereby achieving the effect of sufficient heat exchange.

[0016] Further, the spraying device is arranged at the top of the box, and the spraying device is in heat conduction connection with the box.

[0017] In the scheme, the spraying device is arranged at the top of the box, which is conducive to the cooling liquid in the spraying device directly transferring heat to the box, increasing the contact area of the box with air through the fins, thereby preliminarily cooling the cooling liquid and reducing the energy consumption of the heat dissipation device.

[0018] Further, the electricity storage device is provided with a plurality of spraying heads, and the spraying heads correspond to the electricity storage devices one by one.

[0019] The cooling liquid is sprayed through the spraying heads of the spraying device, and the spraying heads correspond to the electricity storage devices one by one, thereby facilitating sufficient spraying and cooling of each electricity storage device.

[0020] Further, the electricity storage devices are arranged apart from each other.

[0021] The scheme is helpful to increase the contact area of the electricity storage device and the cooling liquid and improve the heat dissipation efficiency of the electricity storage device.

[0022] Further, the fins are arranged on the top and bottom of the box.

[0023] The cooling liquid is mainly arranged in the spraying device, and is sprayed on the power storage device by the spraying device, and finally is gathered at the bottom of the box due to inertia or gravity. Arranging the fins on the top and bottom of the box helps to accelerate the heat dissipation of the cooling liquid accumulated in the spraying device and at the bottom of the box, and reduces the energy consumption of the heat dissipation device.

[0024] Further, the box is provided with a breathing valve for balancing the air pressure inside and outside.

[0025] In this scheme, the breathing valve is used to balance the pressure inside and outside the box, to prevent the box from being damaged due to excessive internal pressure caused by the high temperature of the cooling liquid.

[0026] Further, the box is provided with a charging and discharging interface, which is electrically connected with the power storage device.

[0027] When charging, the external power supply is electrically connected with the power storage device arranged in the box through the charging and discharging interface, to supply power to the power storage device; when using electricity, the external electrical appliance is electrically connected with the power storage device arranged in the box through the charging and discharging interface, to use electricity.

[0028] Further, the box is also provided with a communication interface, and the power storage device is in communication connection with the communication interface.

[0029] The external communication device is in communication connection with the power storage device through the communication interface.

[0030] Further, the box is provided with a support member with heat conduction performance, and the power storage device is arranged on the support member. The support surface of the support member in contact with the power storage device is provided with a hollow structure.

[0031] By arranging the support member, the contact area between the power storage device and the cooling liquid is increased, so that the cooling liquid can take away the heat emitted by the power storage device. Specifically, the support surface of the support member in contact with the power storage device has a hollow structure.

[0032] Further, the box comprises an upper cover and a lower shell, the upper cover and the lower shell are sealingly connected through a connecting member, the spraying device is arranged in the upper cover, the power storage device is arranged in the lower shell, the upper cover is provided with the liquid inlet, and the lower shell is provided with the liquid outlet.

[0033] The box adopts a split design of an upper cover and a lower shell, facilitates the arrangement and maintenance of the power storage device, facilitates the replacement of the upper shell and the lower shell, and reduces the maintenance cost of the spray type liquid cooling vehicle-mounted charger; the upper cover and the lower shell are sealingly connected through a connecting part, so that the box has good sealing performance and prevents the cooling liquid from leaking.

[0034] Compared with the prior art, the utility model has the advantages that:

[0035] 1、 the utility model discloses a spray pipe is set on the top of the box and is used for spraying the cooling liquid to the power storage device, and the cooling liquid carries away most of the heat on the surface of the power storage device, then converges to the bottom of the box and waits for circulation, and the fins are arranged on the top and the bottom of the box, so as to preliminarily radiate the cooling liquid and save the energy consumption of the radiator.

[0036] 2、 the breathing valve is arranged on the box, internal and external pressures are balanced, the internal pressure caused by the excessively high cooling liquid is prevented from increasing, and the damage to the box is prevented.

[0037] 3、 the support with the heat conduction performance is arranged between the power storage device and the box, the contact area of the power storage device and the cooling liquid is increased, and the heat dissipation efficiency of the cooling liquid is improved. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 It is a structural schematic view of the utility model embodiment.

[0039] Mark description: 1 - upper cover, 2 - sealing ring, 3 - lower shell, 4 - liquid inlet, 5 - breathing valve, 6 - fin, 7 - spray device, 8 - charge-discharge line interface, 9 - communication interface, 10 - cooling liquid, 11 - power storage device, 12 - circulating pump, 13 - heat dissipation device, 14 - liquid outlet pipeline, 15 - liquid inlet pipeline, 16 - support, 17 - liquid outlet, 18 - connecting part, 19 - liquid inlet. DETAILED DESCRIPTION

[0040] The drawings of the utility model are only used for illustrative description, and cannot be understood as the limitation of the utility model. In order to better illustrate the following embodiments, some components in the drawings can be omitted, enlarged or reduced, and the size of the actual product is not represented; for those skilled in the art, it can be understood that some known structures and their descriptions in the drawings can be omitted.

[0041] As shown in Figure 1 The utility model discloses a spray type liquid cooling vehicle-mounted charger, which is characterized by,

[0042] Including sealed heat conduction box body, power storage device 11, spray device 7, circulating device and heat dissipation device 13.

[0043] The outer surface of the box body is also provided with fins 6.

[0044] The power storage device 11 and the spraying device 7 are arranged inside the box, and the spraying direction of the spraying device 7 faces the power storage device 11;

[0045] The box is provided with a liquid inlet 19 and a liquid outlet 17, and the liquid inlet 19 and the liquid outlet 17 are arranged in an up-down manner. The spraying device 7 is connected to the liquid inlet 19 from the inside of the box.

[0046] The circulating device and the heat dissipation device 13 are arranged outside the box. The circulating device is respectively connected to a liquid inlet pipeline 15 and a liquid outlet pipeline 14 at two ends. The liquid inlet pipeline 15 is connected to the liquid inlet 19 from the outside of the box, and the liquid outlet pipeline 14 is connected to the liquid outlet 17 from the outside of the box. The inside of the box is further filled with cooling liquid 10. The circulating device is used to drive the cooling liquid 10 to flow out of the box from the liquid outlet 17 and then flow back to the spraying device 7 from the liquid inlet 19. The heat dissipation device 13 is used to dissipate heat from the cooling liquid 10 in the liquid inlet pipeline 15 and / or the cooling liquid 10 in the liquid outlet pipeline 14. In a specific implementation, the heat dissipation device 13 can be a heat dissipation fan. By accelerating the air flow around the liquid inlet pipeline 15 and the liquid outlet pipeline 14, the cooling liquid 10 in the pipelines is indirectly cooled. More preferably, a heat exchanger can also be used. The input end and the output end of the heat exchanger are respectively connected to the liquid outlet pipeline 14 and the liquid inlet pipeline 15. The high-temperature cooling liquid 10 input from the liquid outlet pipeline 14 is cooled by the heat exchanger and then output as low-temperature cooling liquid through the liquid inlet pipeline 15, and then flows back to the spraying device 7.

[0047] In actual work, the cooling liquid 10 flows in the circulating pipeline composed of the liquid outlet pipeline 14 and the liquid inlet pipeline 15 under the action of the circulating pump 12, then flows into the box and is sprayed out by the spraying device 7, forming liquid droplets with a certain speed adhering to the power storage device 11. Under the action of inertia or gravity, the liquid droplets flow over the surface of the power storage device 11 at a certain speed, taking away heat. The liquid droplets collecting the heat of the power storage device 11 converge at the bottom of the box. Under the action of the circulating pump 12, the liquid droplets collecting the heat of the power storage device 11 flow into the heat dissipation device 13 through the circulating pipeline, realize heat exchange, and the cooling liquid 10 cooled by the heat dissipation device 13 is sprayed out again by the spraying device 7, completing a cycle.

[0048] The surface of the box is provided with fins 6. When the cooling liquid 10 with heat accumulates at the bottom of the box due to its own gravity, the fins 6 increase the contact area between the box and the air, thereby accelerating the removal of the heat absorbed by the box, and thus preliminarily indirectly cooling the cooling liquid 10, saving energy for the heat dissipation device 13, and achieving the purpose of energy saving of the automobile.

[0049] In specific implementation, the box is a sealed box, and a certain height of cooling liquid 10 is stored at the bottom to ensure that the cooling liquid 10 entering the circulating pump 12 is free of gas, thereby avoiding cavitation of the circulating pump 12; and a liquid adding port 4 is arranged at the top of the box to facilitate addition of the cooling liquid 10.

[0050] Further, the spraying device 7 is arranged above the electricity storage device 11.

[0051] The electricity storage device 11 is usually arranged at the bottom of the box, and the present scheme facilitates spraying of the spraying device 7 to the electricity storage device 11, so that the electricity storage device 11 has the maximum spraying area, and in addition, the cooling liquid 10 sprayed above the electricity storage device 11 can flow from top to bottom on the surface of the electricity storage device 11 under the action of gravity, thereby achieving the effect of sufficient heat exchange.

[0052] Further, the spraying device 7 is arranged at the top inside the box, and the spraying device 7 is in heat-conducting connection with the box.

[0053] In the present scheme, the spraying device 7 is arranged at the top inside the box, which is conducive to direct heat transfer of the cooling liquid 10 in the spraying device 7 to the box, and the contact area of the box and air is increased through the fins 6, thereby completing the preliminary heat dissipation of the cooling liquid 10 and reducing the energy consumption of the heat dissipation device 13.

[0054] Further, the electricity storage device 11 is provided in plurality, and the spraying device 7 is provided with a plurality of spraying heads, which correspond to the electricity storage devices 11 one by one.

[0055] The cooling liquid 10 is sprayed through the spraying heads of the spraying device 7, and the spraying heads correspond to the electricity storage devices 11 one by one, thereby facilitating sufficient spraying and cooling of each electricity storage device 11.

[0056] Preferably, the electricity storage devices 11 are arranged at a distance from each other. The present scheme is helpful to increase the contact area of the electricity storage devices 11 and the cooling liquid 10, and improve the heat dissipation efficiency of the electricity storage devices 11.

[0057] Further, the fins 6 are arranged on the top surface and the bottom surface of the box.

[0058] The circulating device draws the cooling liquid 10 into the spraying device 7, and then sprays it on the electricity storage device 11, and finally converges at the bottom of the box due to inertia or gravity, and in specific implementation, a certain height of cooling liquid 10 is stored at the bottom of the box, and the fins 6 arranged on the top surface and the bottom surface of the box are helpful to accelerate heat dissipation of the cooling liquid 10 in the spraying device 7 and the cooling liquid 10 stored at the bottom of the box, thereby reducing the energy consumption of the heat dissipation device 13.

[0059] Further, the box is provided with a breather valve 5 for balancing the internal and external air pressures.

[0060] In the scheme, the breathing valve 5 is used to balance the pressure inside and outside the box, prevent the box from being damaged due to the excessive pressure inside the box caused by the high temperature of the cooling liquid 10. When the cooling liquid 10 absorbs a large amount of heat emitted by the power storage device 13, the temperature rises, and the pressure inside the box increases. The pressure inside the box can be reduced by adjusting the tightness of the breathing valve 5 to ensure the balance of the pressure inside and outside the box.

[0061] Further, the box is provided with a charging and discharging interface 8, which is electrically connected with the power storage device 13.

[0062] When charging, the external power supply is electrically connected with the power storage device 13 arranged in the box through the charging and discharging line interface 8 to supply power to the power storage device 13; when using electricity, the external power consumer is electrically connected with the power storage device 13 arranged in the box through the charging and discharging line interface 8 to use electricity.

[0063] Further, the box is further provided with a communication interface 9, and the power storage device 13 is in communication connection with the communication interface 9.

[0064] The external communication device is in communication connection with the power storage device 13 through the communication interface 9.

[0065] Further, the box is provided with a support member 16 with heat conduction performance, and the power storage device 13 is arranged on the support member 16. The support surface of the support member 16 in contact with the power storage device 13 is provided with a hollow structure.

[0066] By arranging the support member 16, the contact area between the power storage device 13 and the cooling liquid 10 is increased, so that the cooling liquid 10 can take away the heat emitted by the power storage device 13. Specifically, the support surface of the support member 16 in contact with the power storage device 13 has a hollow structure.

[0067] Further, the box comprises an upper cover 1 and a lower shell 3, and the upper cover 1 and the lower shell 3 are sealingly connected through a connecting member 18. The spraying device 7 is arranged on the upper cover 1, the power storage device 13 is arranged in the lower shell 3, the upper cover 1 is provided with a liquid inlet 19, and the lower shell 3 is provided with a liquid outlet 17.

[0068] The box adopts a split design of the upper cover 1 and the lower shell 3, which facilitates the arrangement and maintenance of the power storage device 13, and facilitates the replacement of the upper cover 1 and the lower shell 3, thereby reducing the maintenance cost of the spraying type liquid cooling vehicle charger. In specific implementation, the upper cover 1 and the lower shell 3 are connected through the connecting member 18, and then fixed through the sealing gasket 2, so that the box has good sealing performance and prevents the cooling liquid 10 from leaking.

[0069] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the technical solutions of the present application, and are not intended to limit the specific implementation manners of the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application claims shall be included in the protection scope of the present application claims.

Claims

1. A spray-type liquid-cooled vehicle charger, characterized in that, It includes a sealed heat-conducting enclosure, an energy storage device, a spraying device, a circulation device, and a heat dissipation device; The outer surface of the box is also provided with fins; Both the energy storage device and the spraying device are located inside the housing, with the spraying direction of the spraying device facing the energy storage device. The box body is provided with a liquid inlet and a liquid outlet, which are arranged vertically. The spraying device is connected to the liquid inlet from inside the box body. The circulation device and the heat dissipation device are located outside the housing. The two ends of the circulation device are respectively connected to an inlet pipe and an outlet pipe. The inlet pipe connects to the inlet port from outside the housing, and the outlet pipe connects to the outlet port from outside the housing. Coolant is also added inside the housing. The circulation device is used to drive the coolant to flow out of the housing from the outlet port and then back to the spray device from the inlet port. The heat dissipation device is used to dissipate heat from the coolant in the inlet pipe and / or the coolant in the outlet pipe.

2. The spray-type liquid-cooled vehicle charger according to claim 1, characterized in that, The spraying device is located above the energy storage device.

3. A spray-type liquid-cooled vehicle charger according to claim 2, characterized in that, The spraying device is located at the top of the box body and is thermally connected to the box body.

4. A spray-type liquid-cooled vehicle charger according to claim 3, characterized in that, The energy storage device is provided in several units, and the spraying device is provided in several spray heads, with each spray head corresponding to one of the energy storage devices.

5. A spray-type liquid-cooled vehicle charger according to claim 4, characterized in that, The fins are disposed on the top and bottom surfaces of the housing.

6. A spray-type liquid-cooled vehicle charger according to claim 1, characterized in that, The housing is equipped with a breathing valve for balancing the internal and external air pressure.

7. A spray-type liquid-cooled vehicle charger according to claim 1, characterized in that, The housing is equipped with a charging and discharging interface, which is electrically connected to the energy storage device.

8. A spray-type liquid-cooled vehicle charger according to claim 1, characterized in that, The enclosure is also equipped with a communication interface, and the energy storage device is connected to the communication interface.

9. A spray-type liquid-cooled vehicle charger according to claim 1, characterized in that, The housing includes an upper cover and a lower shell, which are sealed together by a connecting component. The spraying device is located on the upper cover, and the energy storage device is located inside the lower shell. The upper cover has a liquid inlet, and the lower shell has a liquid outlet.

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