Battery cooling and heating management device

Abstract

The utility model relates to vehicle battery heat management device technical field especially relates to a kind of battery cold and warm heat management device, including box body component, box body component is by bottom plate, left side panel, right side panel, front panel, back panel and upper cover plate component, two condensing fans are inlaidly provided on back panel, condenser is provided on the top surface of bottom plate, and condenser is at the front side of condensing fan, the top surface of bottom plate of condenser front side is provided with frequency conversion compressor and plate heat exchanger, the top surface of bottom plate of plate heat exchanger front side is provided with electronic water pump and PTC heater, front side plate is provided with integrated control device in electronic water pump front side, the utility model has the advantages that: the internal structure of device is compact, reasonable in design, reduce the volume of device, reduce the cost required, with four modes to adapt to different situations so that battery is always in suitable temperature work, improve battery service life and cruising ability, improve the scope of application of device.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicle battery thermal management devices, and in particular to a battery heating and cooling thermal management device. Background Technology

[0002] With the widespread application of new energy sources and the increasing maturity of new energy technologies, coupled with the growing level of industrialization in society and the increasingly stringent requirements for air quality in living environments, the application scenarios for new energy vehicles are becoming increasingly diverse.

[0003] As the energy source for new energy vehicles, batteries have become an essential part of battery cooling and heating systems. By sending cooling requests and target water temperatures through the BMS, the battery temperature is kept within a suitable range, thereby ensuring the safety of the battery during operation.

[0004] However, the existing technologies still have some shortcomings in use: First, the battery thermal management devices used in the existing technologies are large in size, require a lot of space for installation, and have high manufacturing costs, which makes them unsuitable for various types of vehicles and reduces their applicability; Second, the existing technologies do not make full use of the wind phenomenon during vehicle operation, resulting in low heat dissipation effect, so the existing technologies need to be further improved. Utility Model Content

[0005] The purpose of this invention is to provide a battery thermal management device to solve the problems of large size, high cost, inability to adapt well to different types of vehicles, limited applicability, and underutilization of wind impact during vehicle operation in the prior art.

[0006] This utility model adopts the following technical solution: a battery heating and cooling management device, including a housing assembly, which is composed of a bottom plate, a left side panel, a right side panel, a front panel, a rear panel and a top cover. Two condensing fans are embedded in the rear panel. A condenser is provided on the top surface of the bottom plate, and the condenser is located in front of the condensing fans. A variable frequency compressor and a plate heat exchanger are provided on the top surface of the bottom plate in front of the condenser. The variable frequency compressor is located to the left of the left side panel. An electronic water pump and a PTC heater are provided on the top surface of the bottom plate in front of the plate heat exchanger. The electronic water pump is located between the PTC heater and the variable frequency compressor. An integrated control device is provided on the front panel in front of the electronic water pump.

[0007] Optionally, the input end of the electronic water pump is connected to an inlet pipe, the output end of the electronic water pump is connected to the input end of the PTC heater through pipe one, the output end of the PTC heater is connected to the heat inlet of the plate heat exchanger through pipe two, and the heat outlet of the plate heat exchanger is connected to an outlet pipe, which is connected to the inlet pipe to form a water circulation loop.

[0008] Optionally, the output end of the variable frequency compressor is connected to the input end of the condenser through the exhaust pipe, the output end of the condenser is connected to the cold inlet of the plate heat exchanger through the condensate pipe, and the cold outlet of the plate heat exchanger is connected to the input end of the variable frequency compressor through the suction pipe, forming a cooling circulation loop.

[0009] Optionally, the inlet pipe, pipe one, pipe two, outlet pipe, exhaust pipe, condensate pipe and air intake pipe are arranged in an overlapping and staggered manner.

[0010] Optionally, the water circulation loop and cooling circulation loop are electrically connected to the integrated control unit.

[0011] Optionally, one end of the inlet and outlet water pipes extends through the left side panel to the outside.

[0012] Optionally, several heat dissipation holes 1 that communicate with the interior are symmetrically opened on the left and right sides of the panel, and the heat dissipation holes 1 on both sides form a high-speed airflow channel with a stable orientation. Several heat dissipation holes 2 are opened on the front panel.

[0013] Optionally, a high-pressure PT sensor is installed on the exhaust pipe near the variable frequency compressor, and a low-pressure switch is installed on the suction pipe near the variable frequency compressor. The high-pressure PT sensor and the low-pressure switch are electrically connected to the integrated control device.

[0014] Optionally, a 4G module is provided on the inside of the left panel, and the 4G module is connected to the integrated control device.

[0015] Optionally, the base plate, left side panel, right side panel, front panel, rear panel, and top cover can all be detachably connected by bolts or other means.

[0016] Compared with the prior art, this utility model has the following advantages:

[0017] 1. In this application, the condenser fan is embedded in the rear side plate, and the various parts inside the housing assembly are reasonably arranged according to their size, making the whole device more compact and reasonable, greatly reducing the overall size and weight of the device, reducing the manufacturing cost, making it applicable to more vehicle models, and improving the applicability of the device.

[0018] 2. In this application, the device has an integrated control device with a cooling circulation loop, a water circulation loop, and two control loops. The water circulation loop has a PTC heater. Through the cooperation of the cooling circulation loop, the water circulation loop, and the integrated control device, multiple modes are formed, which enables the device to heat or cool the battery according to different conditions. This ensures that the battery can always work in the most suitable state in different environments, thus ensuring the battery's working efficiency and improving its service life.

[0019] 3. In this application, several heat dissipation holes are symmetrically provided on the left and right panels. The several heat dissipation holes on both sides form a high-speed airflow channel with a stable orientation. This can make full use of the "collision wind" effect during vehicle movement and use the high-speed airflow of the "collision wind" to quickly cool down the entire device, reduce the starting frequency and load of the variable frequency compressor, and also improve the cooling efficiency and extend the service life of the device by cooperating with the cooling circulation loop. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall front structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;

[0022] Figure 3 This is an exploded structural diagram of the entire present invention;

[0023] Figure 4 This is a schematic diagram of the overall rear structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the cooling circulation loop and water circulation loop of this utility model.

[0025] In the diagram: 1. Base plate; 2. Left side panel; 3. Right side panel; 4. Front panel; 5. Rear panel; 6. Top cover; 7. Condenser fan; 8. Condenser; 9. Variable frequency compressor; 10. Plate heat exchanger; 11. Electric water pump; 12. PTC heater; 13. Integrated control device; 14. Water inlet pipe; 15. Pipe 1; 16. Pipe 2; 17. Water outlet pipe; 18. Exhaust pipe; 19. Condensate pipe; 20. Suction pipe; 21. Heat dissipation hole 1; 22. Heat dissipation hole 2; 23. High-pressure PT sensor; 24. Low-pressure switch; 25. 4G module. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only a part of the embodiments disclosed in this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] Various non-limiting embodiments of this utility model are described in detail below. Any number of elements in the accompanying drawings is for illustrative purposes only and not for limitation, and any naming is for distinction only and has no limiting meaning.

[0028] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0029] Please see Figure 1-5 The present invention will now be described in detail with reference to the accompanying drawings and embodiments: A battery heating and cooling management device includes a housing assembly, which consists of a base plate 1, a left side panel 2, a right side panel 3, a front panel 4, a rear panel 5, and a top cover plate 6. Two condensing fans 7 are embedded in the rear panel 5. A condenser 8 is provided on the top surface of the base plate 1, and the condenser 8 is located in front of the condensing fans 7. A variable frequency compressor 9 and a plate heat exchanger 10 are provided on the top surface of the base plate 1 in front of the condenser 8. The variable frequency compressor 9 is located to the left of the left side panel 2. An electronic water pump 11 and a PTC heater 12 are provided on the top surface of the base plate 1 in front of the plate heat exchanger 10. The electronic water pump 11 is located between the PTC heater 12 and the variable frequency compressor 9. An integrated control device 13 is provided on the front panel 4 in front of the electronic water pump 11.

[0030] Using a variable frequency compressor can increase the cooling capacity range of the thermal management device, improve the cooling speed and cooling efficiency, and also provide cooling for smaller needs. It can operate at low power for a long time, reduce power consumption, and thus reduce electricity costs and operating costs in the later stage.

[0031] The input end of the electronic water pump 11 is connected to the inlet pipe 14. The output end of the electronic water pump 11 is connected to the input end of the PTC heater 12 through pipe 15. The output end of the PTC heater is connected to the heat inlet of the plate heat exchanger 10 through pipe 2 16. The heat outlet of the plate heat exchanger 10 is connected to the outlet pipe 17. The outlet pipe 17 is then connected to the inlet pipe 14 to form a water circulation loop.

[0032] The PTC heater 12 in the water circulation loop can provide appropriate heating to the battery, so that the battery is at a suitable working temperature in a low-temperature environment, thereby improving the battery's working efficiency and service life.

[0033] The output end of the variable frequency compressor 9 is connected to the input end of the condenser 8 through the exhaust pipe 18. The output end of the condenser 8 is connected to the cold inlet of the plate heat exchanger 10 through the condensate pipe 19. The cold outlet of the plate heat exchanger 10 is connected to the input end of the variable frequency compressor 9 through the suction pipe 20, forming a cooling circulation loop.

[0034] Please see Figure 2-3 The water inlet pipe 14, pipe one 15, pipe two 16, water outlet pipe 17, exhaust pipe 18, condensate pipe 19 and air intake pipe 20 are arranged in an overlapping and staggered manner, which not only allows them to not interfere with each other, but also makes full use of the space inside the box assembly, reducing the overall size of the device.

[0035] The water circulation loop and the cooling circulation loop are electrically connected to the integrated control device 13.

[0036] One end of the inlet pipe 14 and the outlet pipe 17 extends through the left side panel 2 to the outside.

[0037] Please see Figure 2-3 The left panel 2 and the right panel 3 are symmetrically provided with several heat dissipation holes 21 that communicate with the interior. The heat dissipation holes 21 on both sides form a high-speed airflow channel that is oriented towards stability. This can make full use of the "collision wind" effect during vehicle movement and use the high-speed airflow of the "collision wind" to quickly cool down the entire device, reduce the starting frequency and load of the variable frequency compressor 9, and also improve the cooling efficiency and extend the service life of the device by cooperating with the cooling circulation loop.

[0038] Please see Figure 1-3 Several heat dissipation holes 22 are provided on the front side panel.

[0039] Please see Figure 2-3 A high-pressure PT sensor 23 is installed on the exhaust pipe 18 near the variable frequency compressor 9, and a low-pressure switch 24 is installed on the intake pipe 20 near the variable frequency compressor 9. The high-pressure PT sensor 23 and the low-pressure switch 24 are electrically connected to the integrated control device 13.

[0040] Please see Figure 2-3 A 4G module 25 is provided on the inner side of the left panel 2, and the 4G module 25 is connected to the integrated control device 13. The setting of the 4G module 25 enhances the efficiency and timeliness of information transmission between the integrated control module and various components.

[0041] The base plate 1, left side panel 2, right side panel 3, front panel 4, rear panel 5 and top cover plate 6 are all detachably connected by bolts or other means, so as to facilitate the replacement and repair of parts in different positions, making subsequent maintenance convenient and quick, and reducing the labor intensity of workers.

[0042] The top cover 6 can also be stabilized on the top surface of the left side panel 2, right side panel 3, front panel 4 and rear panel 5 by magnetic attraction, snap-fit ​​and other mechanisms, which further facilitates the opening and closing of the top cover 6.

[0043] This solution has the following modes during use:

[0044] I. Power Off Mode

[0045] When the electrical appliances in the vehicle are turned off or the battery is in a suitable environment due to natural convection, the device is in standby mode and requires no further intervention.

[0046] II. Self-looping mode

[0047] When the BMS detects that the battery temperature exceeds the suitable temperature, the DC-DC module in the integrated control device 13 will switch to low-voltage DC power and supply power to the electronic water pump 11 through the low-voltage fuse module. The electronic water pump 11 rotates at a constant speed, so that the water circulation loop starts to circulate. At this time, the compressor, condenser fan 7 and PTC heater 12 are in the off state.

[0048] Coolant flow path: Electric water pump 11 → Pipe 1 15 → PTC heater 12 (standby state) → Pipe 2 16 → Plate heat exchanger 10 → Outlet pipe 17 → Inlet pipe 14 → Electric water pump 11.

[0049] III. Cooling Mode

[0050] When the BMS detects that the battery temperature is too high and the water circulation mode cannot lower the battery temperature to a suitable temperature, the inverter module in the integrated control device 13 converts three-phase AC power to power the inverter compressor 9. The inverter compressor 9 starts and enters the condenser 8 through the exhaust pipe 18, and then enters the plate heat exchanger 10 through the condensate pipe 19. Through vapor compression refrigeration, the evaporation of the refrigerant lowers the coolant in the plate heat exchanger 10 to the target temperature. The circulation of the coolant carries away the heat from the battery, thereby lowering the battery temperature to a suitable temperature.

[0051] IV. Heating Mode

[0052] When the BMS detects that the battery temperature is below the appropriate temperature, the integrated control device 13 controls the electronic water pump 11 to start and simultaneously controls the PTC heater 12 to start heating, thereby increasing the temperature of the water circulation and transferring heat to the battery, so that the battery temperature returns to the appropriate temperature.

[0053] The BMS safety monitoring system integrates multiple protection functions, including overload, short circuit, overvoltage, and overcurrent protection. Once a battery abnormality is detected, the system will immediately send an 'emergency stop command' to the CCU, quickly cutting off power to all components to ensure safety.

[0054] Based on the above description in this specification, those skilled in the art will also understand that the following terms, such as "upper," "lower," "front," "rear," "left," "right," "inner," and "outer," which indicate orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as a limitation on the present invention.

[0055] In addition, in the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.

Claims

1. A battery thermal management device, characterized in that: The enclosure includes a housing assembly, which consists of a bottom plate, a left side panel, a right side panel, a front panel, a rear panel, and a top cover. Two condensing fans are embedded in the rear panel. A condenser is located on the top surface of the bottom plate, in front of the condensing fans. A variable frequency compressor and a plate heat exchanger are located on the top surface of the bottom plate in front of the condenser, with the variable frequency compressor to the left of the left side panel. An electric water pump and a PTC heater are located on the top surface of the bottom plate in front of the plate heat exchanger, with the electric water pump positioned between the PTC heater and the variable frequency compressor. An integrated control device is located on the front panel in front of the electric water pump.

2. The battery heating and cooling thermal management device according to claim 1, characterized in that: The input end of the electronic water pump is connected to the inlet pipe, and the output end of the electronic water pump is connected to the input end of the PTC heater through pipe one. The output end of the PTC heater is connected to the heat inlet of the plate heat exchanger through pipe two. The heat outlet of the plate heat exchanger is connected to the outlet pipe, and the outlet pipe is connected to the inlet pipe to form a water circulation loop.

3. The battery heating and cooling thermal management device according to claim 2, characterized in that: The output end of the variable frequency compressor is connected to the input end of the condenser through the exhaust pipe. The output end of the condenser is connected to the cold inlet of the plate heat exchanger through the condensate pipe. The cold outlet of the plate heat exchanger is connected to the input end of the variable frequency compressor through the suction pipe, forming a cooling circulation loop.

4. The battery heating and cooling thermal management device according to claim 3, characterized in that: The inlet pipe, pipe one, pipe two, outlet pipe, exhaust pipe, condensate pipe and air intake pipe are arranged in an overlapping and staggered manner.

5. The battery heating and cooling thermal management device according to claim 3, characterized in that: The water circulation loop and cooling circulation loop are electrically connected to the integrated control device.

6. The battery heating and cooling thermal management device according to claim 2, characterized in that: One end of the inlet and outlet water pipes extends through the left side panel to the outside.

7. The battery heating and cooling thermal management device according to claim 1, characterized in that: The left and right side panels have several symmetrical ventilation holes that communicate with the interior. The ventilation holes on both sides form a stable high-speed airflow channel. The front side panel has several ventilation holes.

8. The battery heating and cooling thermal management device according to claim 7, characterized in that: A high-pressure PT sensor is installed on the exhaust pipe near the variable frequency compressor, and a low-pressure switch is installed on the suction pipe near the variable frequency compressor. The high-pressure PT sensor and the low-pressure switch are electrically connected to the integrated control device.

9. The battery heating and cooling thermal management device according to claim 1, characterized in that: A 4G module is located on the inside of the left panel, and the 4G module is connected to the integrated control device.

10. The battery heating and cooling thermal management device according to claim 1, characterized in that: The base plate, left side panel, right side panel, front panel, rear panel and top cover can all be detached and connected.

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