A new battery double-heating electric mixer truck
By employing dual heating modes and precise temperature control, the problem of low heating efficiency and uneven temperature in electric mixer truck batteries under low-temperature conditions has been solved, enabling rapid heating and stable operation of the battery, ensuring efficient operation of the electric mixer truck under low-temperature conditions and extending battery life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 湖北德卡智能装备有限公司
- Filing Date
- 2025-01-16
- Publication Date
- 2026-06-26
AI Technical Summary
Existing technologies cannot effectively and quickly raise the temperature of the battery pack or heat it evenly, resulting in a reduction in the driving range of electric mixer trucks in low-temperature environments, and even affecting the normal starting and operation of the vehicle.
It adopts a dual heating mode, combining a water heating module and an electric heating module. The battery temperature is rapidly increased through a PTC heater and resistance wire, and the battery temperature is precisely controlled through a heat transfer module and a cooling module to ensure temperature uniformity and stability.
It achieves rapid heating and temperature uniformity of the battery in low-temperature environments, ensuring the electric mixer truck operates normally in cold conditions, extending battery life and reducing the risk of overheating.
Smart Images
Figure CN224417829U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of electric mixer trucks, and specifically relates to a novel electric mixer truck with dual battery heating. Technical Background
[0002] As the core power source of electric mixer trucks, the performance of the battery directly determines the vehicle's range, power output, and reliability under different environmental conditions. In low-temperature environments, the electrochemical performance of the battery will significantly decrease, leading to increased internal resistance and reduced usable capacity. This results in a substantial reduction in the electric mixer truck's range and may even affect the vehicle's normal starting and operation.
[0003] Patent CN119009002A discloses a thermal management system and method for cold start of fuel cell vehicles. The patent includes a fuel cell stack, a heat accumulator, a heater, and a radiator, connected by a three-way valve to form a circulation loop. It is equipped with multiple water temperature sensors and a cooling fan, effectively managing temperature changes during cold start and operation of the fuel cell vehicle, improving thermal efficiency, extending battery life, and optimizing overall performance.
[0004] The patent disclosed in CN19009002A, which describes a thermal management system and method for cold starting fuel cell vehicles, has the following shortcomings: 1. Using a heat accumulator to heat the battery pack is only applicable to fuel cells and cannot be applied to feed electric vehicles or mixer trucks, and it cannot effectively control the heating temperature of the battery pack. 2. Using a heater or heat accumulator to heat the battery pack with water cannot quickly and evenly raise the temperature of the battery pack in extremely cold temperatures. Utility Model Content
[0005] To overcome the problems existing in the prior art, this utility model provides a novel electric mixer truck with dual battery heating. Through dual heating modes, it can effectively improve the performance of the battery in low-temperature environments and solve problems such as uneven battery temperature and low heating efficiency caused by traditional heating methods.
[0006] A novel battery-powered electric mixer truck with dual heating includes a battery pack, a heat transfer module, a heating module, and a cooling module. The battery pack is externally equipped with a hydrothermal jacket, which is connected to the heat transfer module via pipes. The battery pack and the heat transfer module exchange heat. The cooling module provides a cold source for the heat transfer module. The battery pack is also externally equipped with an electric heating jacket. The heating module includes a hydrothermal module and an electric heating module. The hydrothermal module is connected to the heat transfer module via pipes. The electric heating module includes an electric heating component and a protection component. The electric heating component is located inside the electric heating jacket and is powered by the battery pack. The protection component is located on the positive circuit of the electric heating component.
[0007] Furthermore, the water heating module includes a PTC heater, the inlet and outlet of which are connected to the heat transfer module piping.
[0008] Furthermore, the electric heating element is a resistance wire.
[0009] Furthermore, the electric heating element is a PTC resistor.
[0010] Furthermore, the protection components include a TMS fuse and a TMS relay, which are connected in series.
[0011] Furthermore, the heat transfer module includes a pump, the pump inlet of which is connected to the water heating module piping, and the pump outlet of which is connected to the water heating jacket piping.
[0012] Furthermore, the heat transfer module also includes an expansion tank. The pipe between the outlet of the water-heating jacket and the inlet of the water-heating module forms a main heat transfer pipe. The inlet and outlet of the expansion tank are respectively connected to the main heat transfer pipe, and the expansion tank and the main heat transfer pipe form a bypass between each other.
[0013] Furthermore, the cooling module includes a compressor, a condenser, an expansion valve, and a heat exchanger. The heat exchanger is an indirect heat exchanger. The heat medium inlet and outlet of the heat exchanger are both connected to the heat transfer module pipeline. The refrigerant side of the heat exchanger, the compressor, the condenser, and the expansion valve are connected in sequence by pipelines to form a closed loop.
[0014] Furthermore, the cooling module also includes a dryer, the inlet of which is connected to the outlet pipe of the condenser, and the outlet of the dryer is connected to the inlet pipe of the expansion valve.
[0015] Furthermore, the cooling module also includes a gas-liquid separator, the inlet of which is connected to the heat medium outlet pipe of the heat exchanger, and the outlet of which is connected to the inlet pipe of the compressor.
[0016] Compared with the prior art, the present invention has achieved the following beneficial effects:
[0017] This utility model discloses a novel electric mixer truck with dual battery heating. It adopts a dual heating mode, with an electric heating module rapidly raising the battery temperature and a water heating module uniformly raising the battery temperature. The battery pack is heated efficiently through different means, which improves the battery performance in low-temperature environments and ensures that it can operate normally and work in cold conditions.
[0018] This utility model discloses a novel electric mixer truck with dual battery heating. On the one hand, the PTC element responds extremely quickly to temperature changes, enabling rapid adjustment of water temperature in the water heating module and rapid increase of battery temperature in the electric heating module. On the other hand, the PTC material has self-current limiting characteristics, automatically reducing the current in the event of a malfunction or abnormally high temperature, thus stabilizing the battery temperature and reducing the risk of battery overheating.
[0019] This utility model discloses a novel electric mixer truck with dual battery heating. Through the pump, expansion tank and related valves in the heat transfer module, hot water circulation and regulation are realized. On the one hand, the temperature of the battery pack can be precisely controlled, and on the other hand, the heat distribution can be ensured to be uniform, avoiding damage to the battery caused by uneven temperature and extending the battery's service life. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 is a cross-sectional view of a novel battery-powered electric mixer truck according to this utility model.
[0022] In the diagram, 1 is the battery pack; 2 is the heat transfer module; 3 is the heating module; 4 is the cooling module; 11 is the hydrothermal jacket; 21 is the pump; 22 is the expansion tank; 23 is the shut-off valve; 31 is the water heating module; 32 is the electric heating module; 321 is the electric heating component; 322 is the TMS fuse; and 323 is the TMS relay. Detailed Implementation
[0023] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of 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.
[0024] As shown in Figure 1, a novel battery-powered electric mixer truck with dual heating includes a battery pack 1, a heat transfer module 2, a heating module 3, and a cooling module 4. The battery pack 1 has an external water-heating jacket 11, which is connected to the heat transfer module 2 via pipes. The battery pack 1 and the heat transfer module 2 exchange heat. The heating module 3 provides a heat source for the heat transfer module 2, and the cooling module 4 provides a cold source for the heat transfer module 2. The heating module 3 includes a water-heating module 31 and an electric heating module 32. The water-heating module 31 is connected to the heat transfer module 2 via pipes. The electric heating module 32 includes an electric heating component 321 and a protection component. The electric heating component 321 is located inside the electric heating jacket and is powered by the battery pack 1. The protection component is located on the positive circuit of the electric heating component 321.
[0025] When battery pack 1 needs to be heated, battery pack 1 first supplies power to electric heating module 32, electric heating module 32 heats up battery pack 1, and then water heating module 31 also starts to work; after reaching a certain temperature, electric heating module 32 turns off, and water heating module 31 continues to heat up battery pack 1.
[0026] The water heating module 31 includes a PTC heater, and the inlet and outlet of the PTC heater are connected to the heat transfer module 2 via pipes.
[0027] When battery pack 1 needs to be heated, the PTC heater in the water heating module 31 heats the medium in the heat transfer module 2, and the heat transfer module 2 exchanges heat with battery pack 1 to transfer heat to battery pack 1.
[0028] The electric heating component 321 is a resistance wire.
[0029] The electric heating element 321 is a PTC resistor. At low temperatures, the PTC resistor can generate a large current with a relatively low voltage, quickly converting electrical energy into heat energy and rapidly raising the battery temperature.
[0030] The protection components include a TMS fuse 322 and a TMS relay 323, which are connected in series.
[0031] When battery pack 1 needs heating, the TMS relay in the electric heating module 32 is closed, and the PTC resistor converts electrical energy into heat energy to heat battery pack 1. When battery pack 1 overheats, the current of TMS fuse 322 increases sharply, and TMS fuse 323 will quickly melt, thereby protecting the heating element and other components.
[0032] The heat transfer module 2 includes a pump 21. The inlet of the pump 21 is connected to the water heating module 31 via a pipe, and the outlet of the pump 21 is connected to the water heating jacket 11 via a pipe. On the one hand, the pump 21 can drive the medium in the heat transfer module 2 to circulate and prevent the accumulation of heat or cold. On the other hand, the pump 21 can regulate the flow rate of the medium in the heat transfer module 2, thereby improving the efficiency of heat exchange.
[0033] The heat transfer module 2 also includes an expansion tank 22. A main heat transfer pipe is formed between the outlet of the hydrothermal jacket 11 and the inlet of the water heating module 31. The inlet and outlet of the expansion tank 22 are connected to the main heat transfer pipe, forming a bypass between the expansion tank 22 and the main heat transfer pipe. The volume of the medium in the heat transfer module 2 changes with temperature; the liquid expands when the temperature rises and contracts when the temperature falls. The expansion tank can accommodate excess volume during liquid expansion and replenish coolant into the module during liquid contraction.
[0034] Three-way valves are installed at the inlet and outlet of the expansion tank 22 and at the connection points with the heat transfer main pipe.
[0035] The heat transfer main pipe is located between two three-way valves and is also equipped with a shut-off valve 23.
[0036] Air may be introduced into heat transfer module 2 during initial coolant filling or operation. Air in heat transfer module 2 can affect heat transfer efficiency. Some air enters expansion tank 22 through the three-way valve, while some needs to be manually bleed. This involves closing shut-off valve 23 and pump 21 to stop the circulation of the medium in heat transfer module 2, and manually purging the air. After purging, shut-off valve 23 is reopened, and pump 21 is started to continue the heat transfer cycle, ensuring efficient system operation.
[0037] The cooling module 4 includes a compressor 41, a condenser 42, an expansion valve 43, and a heat exchanger 44. The heat exchanger 44 is an indirect heat exchanger. The heat medium inlet and outlet of the heat exchanger 44 are connected to the heat transfer module 2 via pipelines. The refrigerant side of the heat exchanger 44, the compressor 41, the condenser 42, and the expansion valve 43 are connected in sequence via pipelines to form a closed loop.
[0038] When battery pack 1 overheats, cooling module 4 starts. Compressor 41 in cooling module 4 compresses the gaseous refrigerant into a high-temperature, high-pressure gaseous state, which is then sent to condenser 42 for cooling. The cooled refrigerant becomes a medium-temperature, high-pressure liquid. The high-pressure liquid refrigerant is then throttled and depressurized by expansion valve 43, becoming a low-temperature, low-pressure gas-liquid mixture. The liquid refrigerant absorbs heat from heat transfer module 2 through heat exchanger 44 and vaporizes back into a gaseous state, cooling heat transfer module 2. The cooled heat transfer module 2 then transfers the cooling energy to battery pack 1, further cooling battery pack 1, thus forming a refrigeration cycle.
[0039] The cooling module 4 also includes a dryer 46. The inlet of the dryer 46 is connected to the outlet pipe of the condenser 42, and the outlet of the dryer 46 is connected to the inlet pipe of the expansion valve 43. The dryer 46 can filter out impurities that may be present in the refrigerant, preventing damage to the cooling module 4 and improving the cooling efficiency of the cooling module 4.
[0040] The cooling module 4 also includes a gas-liquid separator 48. The inlet of the gas-liquid separator 48 is connected to the heat medium outlet pipe of the heat exchanger 44, and the outlet of the gas-liquid separator 48 is connected to the inlet pipe of the compressor 41. The gas-liquid separator 48 can separate liquid refrigerant from gaseous refrigerant, reducing the load on the compressor 41 and thus improving the cooling efficiency of the cooling module 4.
[0041] A temperature and pressure sensor 45 is installed on the pipe between the outlet of condenser 42 and the inlet of dryer 46. The temperature and pressure sensor 45 is used to detect the temperature and pressure of the refrigerant in the outlet pipe of condenser 42.
[0042] A temperature sensor 47 is installed on the pipe between the refrigerant outlet of heat exchanger 44 and the inlet of gas-liquid separator 48. The temperature sensor 47 is used to detect the temperature of the refrigerant flowing out of heat exchanger 44.
[0043] The aforementioned dual-heating system for the battery is designed to address the issue of limited battery performance in electric mixer trucks at low temperatures, thereby ensuring stable and efficient operation of the mixer truck under various working conditions.
Claims
1. A novel battery-powered electric mixer truck with dual heating, comprising a battery pack (1), a heat transfer module (2), a heating module (3), and a cooling module (4), wherein the battery pack (1) is provided with a hydrothermal jacket (11), the hydrothermal jacket (11) is connected to the heat transfer module (2) by pipes, the battery pack (1) and the heat transfer module (2) exchange heat, and the cooling module (4) provides a cold source for the heat transfer module (2), characterized in that: The battery pack (1) is also provided with an electric heating sleeve (12). The heating module (3) includes a water heating module (31) and an electric heating module (32). The water heating module (31) is connected to the heat transfer module (2) by a pipe. The electric heating module (32) includes an electric heating component (321) and a protection component. The electric heating component (321) is located inside the electric heating sleeve. The electric heating component (321) is powered by the battery pack (1). The protection component is located on the positive circuit of the electric heating component (321).
2. The novel battery-powered dual-heating electric mixer truck according to claim 1, characterized in that: The water heating module (31) includes a PTC heater, and the inlet and outlet of the PTC heater are connected to the heat transfer module (2) via pipes.
3. The novel battery-powered dual-heating electric mixer truck according to claim 1, characterized in that: The electric heating component (321) is a resistance wire.
4. A novel battery-powered dual-heating electric mixer truck according to claim 3, characterized in that: The electric heating component (321) is a PTC resistor.
5. A novel battery-powered dual-heating electric mixer truck according to claim 1, characterized in that: The protection components include a TMS fuse (322) and a TMS relay (323), which are connected in series.
6. A novel battery-powered dual-heating electric mixer truck according to claim 1, characterized in that: The heat transfer module (2) includes a pump (21), the inlet of which is connected to the water heating module (31) pipe, and the outlet of which is connected to the water heating jacket (11) pipe.
7. A novel battery-powered dual-heating electric mixer truck according to claim 6, characterized in that: The heat transfer module (2) also includes an expansion tank (22). The outlet of the water heating jacket (11) and the inlet of the water heating module (31) form a heat transfer main pipe. The inlet and outlet of the expansion tank (22) are respectively connected to the heat transfer main pipe. The expansion tank (22) and the heat transfer main pipe form a bypass between each other.
8. A novel battery-powered dual-heating electric mixer truck according to claim 1, characterized in that: The cooling module (4) includes a compressor (41), a condenser (42), an expansion valve (43), and a heat exchanger (44). The heat exchanger (44) is an indirect heat exchanger. The heat medium inlet and outlet of the heat exchanger (44) are connected to the heat transfer module (2) via pipelines. The refrigerant side of the heat exchanger (44), the compressor (41), the condenser (42), and the expansion valve (43) are connected in sequence via pipelines to form a closed loop.
9. A novel battery-powered dual-heating electric mixer truck according to claim 8, characterized in that: The cooling module (4) also includes a dryer (46), the inlet of which is connected to the outlet pipe of the condenser (42), and the outlet of which is connected to the inlet pipe of the expansion valve (43).
10. A novel battery-powered dual-heating electric mixer truck according to claim 9, characterized in that: The cooling module (4) also includes a gas-liquid separator (48), the inlet of which is connected to the heat medium outlet pipe of the heat exchanger (44), and the outlet of which is connected to the inlet pipe of the compressor (41).