Disclosure of Invention
Therefore, a parallel heat exchange battery pack needs to be provided to solve the problem that the temperature difference between battery packs is large easily caused by natural cooling and circulating air cooling in the prior art.
In order to achieve the above objects, the inventors provide a parallel type heat exchange battery pack including a water supply pipe, a water pump, a heater, an air conditioning heat exchanger, a heat exchange plate, and a battery pack;
the water pump, the heater and the air-conditioning heat exchanger are arranged on a water supply pipe, the air-conditioning heat exchanger is connected with an air-conditioning pipeline of the vehicle through a connector, the water supply pipe comprises a main water inlet pipe and a main water outlet pipe, the main water inlet pipe is connected with the water inlet end of the water supply pipe, and the main water outlet pipe is connected with the water outlet end of the water supply pipe;
the heat exchange plate is arranged on two sides of the main water inlet pipe and the main water outlet pipe and comprises a front collecting pipe, a heat exchange pipe, a rear collecting pipe, a water inlet branch pipe and a water outlet branch pipe, one end of the water inlet branch pipe is connected with the main water outlet pipe, the other end of the water inlet branch pipe is connected with the water inlet side of the front collecting pipe, one end of the water outlet branch pipe is connected with the main water inlet pipe, the other end of the water outlet branch pipe is connected with the water outlet side of the front collecting pipe, the heat exchange pipe is arranged along the length direction of the front collecting pipe and the;
the battery pack is in contact with the heat exchange tubes.
Further, still include the thermal insulation bubble cotton, the thermal insulation bubble cotton sets up between group battery and hot exchange pipe.
Further, still include the casing, heat exchange plate and group battery set up in the casing.
Further, the water pump, the heater and the air conditioning heat exchanger are disposed outside the case.
Furthermore, valves are arranged on the water inlet branch pipe and the water outlet branch pipe.
Further, still include temperature sensor, temperature sensor sets up on total inlet tube.
Further, the contact surface of the heat exchange tube and the battery pack is of a planar structure.
Different from the prior art, the technical scheme has the following advantages: the water supply pipe is arranged and connected with the heater and the air-conditioning heat exchanger, so that the refrigerating and heating system is integrated on one pipeline, and the pipeline is simplified; the battery pack in the battery pack is divided into a plurality of cooling blocks by the heat exchange plates, and the size of each cooling block can be controlled by the number of the heat exchange tubes pre-arranged between the front collecting pipe and the rear collecting pipe.
Drawings
FIG. 1 is a detailed view of a water supply pipe and a heat exchange plate according to an embodiment of the present invention;
FIG. 2 is a detailed structure diagram of a water supply pipe according to an embodiment of the present invention;
FIG. 3 is a schematic sectional view showing a heat exchanging tube in an embodiment of the present invention;
fig. 4 is a schematic view of the overall structure of the battery pack according to the embodiment of the present invention.
Description of reference numerals:
101. a water supply pipe; 102. A main water inlet pipe; 103. A water outlet pipe is arranged;
104. a temperature sensor;
201. a water pump;
301. a heater;
401. an air conditioning heat exchanger;
501. a heat exchange plate; 502. A front header; 503. A heat exchange tube;
504. a rear header; 505. Water inlet branch pipes; 506. A water outlet branch pipe; 507. A valve;
601. a battery pack; 602. Heat-conducting insulating foam;
701. a housing.
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1 to 4 together, the present embodiment discloses a parallel heat exchange battery pack, which includes a water supply pipe 101, a water pump 201, a heater 301, an air conditioning heat exchanger 401, a heat exchange plate 501 and a battery pack 601. The water pump 201, the heater 301 and the air-conditioning heat exchanger 401 are connected to a pipeline of the water supply pipe 101, the air-conditioning heat exchanger 401 is connected to an air-conditioning pipeline of the vehicle through a connector, both ends of the water supply pipe 101 are respectively connected to the total water inlet pipe 102 and the total water outlet pipe 103, and the temperature sensor 104 is arranged on the total water inlet pipe 102. The heat exchange plate 501 is arranged along the length direction of the main water inlet pipe 102 and the main water outlet pipe 103, the heat exchange plate 501 comprises a front collecting pipe 502, a heat exchange pipe 503, a rear collecting pipe 504, a water inlet branch pipe 505 and a water outlet branch pipe 506, two sides of the front collecting pipe 502 are divided into a water inlet side and a water outlet side, two ends of the water inlet branch pipe 505 are respectively connected with the water inlet sides of the main water outlet pipe 103 and the front collecting pipe 502, two ends of the water outlet branch pipe 506 are respectively connected with the water outlet sides of the main water inlet pipe 102 and the front collecting pipe 502, the heat exchange pipe 503 is arranged along the length direction of the front collecting pipe 503 and the rear collecting pipe 504, a contact surface of a battery pack 601 is formed on a plane formed by the heat exchange pipes 503, the battery pack 601 is contacted with the heat exchange pipe 503.
According to the structure, during specific operation, the water pump is started to enable liquid in the water supply pipe to start flowing, and the temperature sensor on the water inlet pipe of the water supply pipe main carries out temperature detection on the flowing liquid. When the temperature of the battery rises during operation or at a higher temperature, the temperature of the flowing liquid rises together with the temperature of the battery pack, and at the moment, the air conditioner is started, and the air conditioner heat exchanger is cooled by the air conditioner pipeline. The heat exchanger cools the liquid in the water supply pipe, the cooled liquid is shunted to each branch pipe of intaking along total outlet pipe, and branch pipe of intaking carries liquid to the side of intaking of preceding pressure manifold in, and the side of intaking of preceding pressure manifold shunts liquid to each heat exchange pipe of connecting the side of intaking in to flow into the back pressure manifold afterwards. And the liquid in the rear collecting pipe is transferred into a heat exchange pipe connected with the water outlet side of the front collecting pipe, flows back to the main water inlet pipe through a water outlet branch pipe at the water outlet end of the front collecting pipe, and returns to the air-conditioning heat exchanger for cooling again. The heat exchange pipes connected with the water inlet side and the water outlet side of the front collecting pipe respectively form a cooling loop of a U-shaped structure, so that the main water inlet pipe and the main water outlet pipe are arranged in a region in parallel, the water inlet pipe and the water outlet pipe are conveniently integrated, the space utilization rate is improved, and the battery pack in contact with the heat exchange pipes exchanges heat with liquid in the heat exchange pipes, so that the battery is cooled. When the weather is cold and the like, and the temperature of the battery pack is reduced, the temperature sensor detects that the temperature of the liquid is reduced, the heater is started to heat the liquid, and the liquid heats the battery pack along the same liquid flow direction during cooling.
Referring to fig. 1 and 2, in the above embodiment, the heat exchanger further includes a valve 507, the valve 507 is disposed on the water inlet branch pipe 505 and the water outlet branch pipe 506, or disposed on any one of the water inlet branch pipe 505 and the water outlet branch pipe 506, the valve 507 is an electronic control valve and is electrically connected to a vehicle-mounted computer, the temperature sensor is disposed on each battery pack 601, and by disposing the electronic control valve on the water inlet branch pipe and the water outlet branch pipe, the liquid flow control can be performed through the electronic control valve, so as to control the heating or cooling efficiency of any heat exchange plate in the heat exchange battery pack, and thus, the temperature difference between the battery packs in different areas can be conveniently adjusted.
Referring to fig. 3, in the above embodiment, the heat conducting and insulating foam 602 is further included, the heat conducting and insulating foam 602 is disposed between the battery pack 601 and the heat exchanging pipe 503, and the heat conducting and insulating foam is disposed between the heat exchanging pipe and the battery pack, so that the contact area between the heat exchanging pipe and the battery pack is increased, the heat exchanging efficiency is improved, and the temperature difference of the battery pack during heat exchanging is reduced.
Referring to fig. 3, in the above embodiment, the contact surface of the heat exchange tube 503 and the battery pack 601 is a planar structure, and the contact surface of the heat exchange tube 503 and the battery pack 601 is configured as a planar structure, so as to increase the contact area of the heat exchange tube and the battery pack.
Referring to fig. 4, in the above embodiment, the case 701 is further included, the case 701 is wrapped outside the battery pack 601 and the heat exchange plate 501, the portion of the water supply pipe 101 connected to the water pump 201, the heater 301 and the air conditioning heat exchanger 401 is disposed outside the case 701, the case is disposed outside the battery pack and the heat exchange plate, so that the battery pack is protected by the case, and the water pump, the heater and the air conditioning heat exchanger are disposed outside the case, so that the connection of pipelines and the maintenance of components are facilitated.
In the above embodiment, the partition is disposed between the water inlet side and the water outlet side of the front collecting pipe, and the partition is disposed in the front collecting pipe, so as to prevent the liquid from flowing from the water inlet side of the front collecting pipe to the water outlet side.
In the above embodiments, each heat exchange plate is composed of six heat exchange tubes to form a plate surface structure, and in some embodiments, the number of the heat exchange plates can also be two, four or more than six heat exchange tubes, so as to adjust the size of the heat exchange plates to adapt to battery packs with different sizes and adjust the density of heat exchange pipelines.
In some embodiments, two groups of battery packs may be provided, one on each side of the heat exchange plate, to increase the number of battery packs that can be cooled per heat exchange plate by providing battery packs on both sides of the heat exchange plate; the heat exchange plates can be stacked on the top surface and the bottom surface of the battery pack, and the top surface and the bottom surface of the battery pack are respectively contacted with the heat exchange plates, so that both surfaces of the battery pack can be cooled, and the temperature difference in the battery pack is reduced.
It should be noted that, although the above embodiments have been described herein, the invention is not limited thereto. Therefore, based on the innovative concepts of the present invention, the technical solutions of the present invention can be directly or indirectly applied to other related technical fields by making changes and modifications to the embodiments described herein, or by using equivalent structures or equivalent processes performed in the content of the present specification and the attached drawings, which are included in the scope of the present invention.