Firewood heating heat exchange system for heating battery under extremely cold condition

Abstract

The utility model relates to the technical field of low-temperature starting of new energy loaders, and discloses a firewood heating heat exchange system for heating a battery under an extremely cold condition, which comprises a firewood heating mechanism, a first water pump, a water tank, a first three-way valve, a heat exchange mechanism, a second water pump and a battery pack heating pipeline, the firewood heating heat exchange mechanism is communicated with an inlet of a first three-way valve, a first outlet of the first three-way valve is communicated with a fan heater in a cab, the heat exchange mechanism comprises a heat exchange pipeline and a heated cavity, a second outlet of the first three-way valve is communicated with an inlet of the heat exchange pipeline, and the heated cavity of the heat exchange mechanism is communicated with a battery pack heating pipeline through a second water pump. An outlet of the heat exchange pipeline is communicated with the water tank, and the battery pack heating pipeline covers the outer side of the battery pack. The problem that the vehicle using cost and the vehicle using condition are increased due to the fact that the new energy loading machine cannot be normally started under the extremely cold condition below 30 DEG C below zero can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of new energy loader low temperature starting, especially a heating battery's diesel stove heat exchange system under extremely cold conditions. BACKGROUND

[0002] With the continuous strictness of the state to environmental protection requirement, the traditional diesel loader increases a series of post-processing devices to meet the environmental protection requirement, makes production and use cost all continuously improve.

[0003] At present, new energy loader mainly has pure electric loader and hybrid power loader, two kinds of loaders mainly use lithium ion power battery as energy storage device. Because the working environment of loader is relatively complex, especially in the northern region, when the loader is in the extremely cold environment below minus 30 degrees Celsius, if the pure electric loader or hybrid power loader starts after the whole vehicle stops for a period of time, the power battery is not allowed to be high voltage under the condition that the battery temperature is below minus 30 degrees Celsius, and the use of charging socket also cannot be high voltage to heat the battery, the engine of hybrid vehicle cannot start, and the engine coolant cannot be used to heat the battery, so that the whole vehicle cannot start normally.

[0004] The current user can only cope with the problem that the new energy loader cannot start normally under the extremely cold condition below minus 30 degrees Celsius by using 24h non-stop, parking in the heat preservation garage or increasing the heat preservation material of the battery for short time heat preservation.

[0005] For the above related technology, the inventor believes that the use cost and vehicle condition of new energy loader are increased. UTILITY MODEL CONTENT

[0006] In order to alleviate the above technical problems, the utility model provides a heating battery's diesel stove heat exchange system under extremely cold conditions.

[0007] The utility model provides a heating battery's diesel stove heat exchange system under extremely cold conditions, adopts the following technical scheme:

[0008] The application discloses a kind of for heating battery under extremely cold conditions diesel heating heat exchange system, including diesel heating mechanism, first water pump, water tank, first three-way valve, heat exchange mechanism, second water pump and battery pack heating pipeline, the water tank is communicated with diesel heating heat exchange mechanism by first water pump, the diesel heating heat exchange mechanism is communicated with the inlet of first three-way valve, the first outlet of first three-way valve is communicated with the air heater in cab, the heat exchange mechanism includes heat exchange pipeline and heated cavity, the second outlet of first three-way valve is communicated with the inlet of heat exchange pipeline, the heated cavity of heat exchange mechanism is communicated with battery pack heating pipeline by second water pump, the outlet of heat exchange pipeline is communicated with water tank, the battery pack heating pipeline is wrapped in the outside of battery pack, and the water tank is communicated with air heater.

[0009] By adopting the above technical scheme, the heat energy generated by the diesel heating mechanism is used to heat the water pumped into the diesel heating mechanism, and through the distribution of the first three-way valve, part of the heat energy is used for air heating supply in the cab to ensure the comfort of the driver under extremely cold conditions, and the other part of the heat energy is guided to the heat exchange mechanism, and through the heat exchange of the heated cavity and the heat exchange pipeline, the heat energy is transmitted to the battery pack heating pipeline wrapped outside the battery pack, and the battery pack is heated by the battery pack heating pipeline, so that the battery pack reaches a temperature capable of being high-voltage, so that the loader can be normally started.

[0010] Optionally, a first electromagnetic valve is arranged between the first three-way valve and the heat exchange pipeline, the first electromagnetic valve is electrically connected with the vehicle controller, the vehicle controller is electrically connected with a first temperature detection sensor, and the first temperature detection sensor is used to detect the ambient temperature outside the vehicle.

[0011] By adopting the above technical scheme, the first electromagnetic valve is arranged between the first three-way valve and the heat exchange pipeline, the first electromagnetic valve is used to control the on-off of the first three-way valve and the heat exchange pipeline and the flow of the heat exchange medium, when the first temperature detection sensor detects the ambient temperature outside the vehicle and transmits a signal to the vehicle controller, when the temperature detected by the first temperature detection sensor is higher than the set value, the vehicle controller controls the first electromagnetic valve to be closed, so that the heat energy generated by the diesel heating mechanism is all supplied to the air heater in the cab, and the heat loss is reduced.

[0012] Optionally, a second temperature detection sensor is arranged in the heated cavity, the second temperature detection sensor is located in the heated cavity close to the second water pump, and the second temperature detection sensor is electrically connected with the vehicle controller.

[0013] By adopting the technical scheme, the second temperature detection sensor is arranged at a position close to the second water pump in the heated cavity, the temperature of the circulating coolant in the battery pack heating pipeline is collected by the second temperature detection sensor, and the opening degree of the first electromagnetic valve is adjusted by the vehicle controller according to the signal transmitted by the second temperature detection sensor, so that the coolant temperature of the battery pack heating is controlled in a suitable range.

[0014] Optionally, a third temperature detection sensor is arranged in the battery pack, and the third temperature detection sensor is used for detecting the temperature of the battery cell and is electrically connected with the vehicle controller.

[0015] By adopting the technical scheme, the temperature of the battery cell is detected by the third temperature detection sensor, when the first temperature detection sensor detects that the external environment temperature is lower than the set value, but the temperature of the battery cell is higher than the set value, the vehicle controller controls the first electromagnetic valve and the second water pump to be closed.

[0016] Optionally, the heated cavity is wrapped with a temperature insulation layer.

[0017] Optionally, a heating film for heating the battery cell is arranged in the battery pack, and the heating film is electrically connected with the vehicle controller.

[0018] By adopting the technical scheme, the heating film for heating the battery cell is arranged in the battery pack, when the external temperature is higher than minus thirty degrees Celsius, the vehicle is allowed to be under high pressure, the diesel heating system and the heating film are used to heat the battery together, and the battery heating rate is improved; when the external temperature is lower than minus thirty degrees Celsius, the vehicle is not allowed to be under high pressure, and the diesel heating system is used to heat the battery, so that the battery can quickly meet the high pressure condition.

[0019] Optionally, a switch mechanism is arranged in the cab, the first water pump is electrically connected with the switch mechanism, and the diesel heating mechanism is electrically connected with the switch mechanism.

[0020] By adopting the technical scheme, the switch mechanism is arranged in the cab, the working state of the first water pump and the diesel heating mechanism is controlled by the switch mechanism, and the convenience of user operation is improved.

[0021] Optionally, the switch mechanism is electrically connected with the vehicle controller.

[0022] By adopting the technical scheme, the switch mechanism is electrically connected with the vehicle controller, the working state of the first water pump and the diesel heating mechanism is judged by the vehicle controller through the signal transmitted by the switch mechanism, when the first water pump and the diesel heating mechanism are in the shutdown state, even if the temperatures detected by the first temperature detection sensor and the third temperature detection sensor are lower than the set value, the vehicle controller does not react.

[0023] In summary, the utility model includes at least one of the following beneficial technical effects:

[0024] 1. By utilizing the hot energy generated by the diesel heating mechanism to heat the water pumped into the diesel heating mechanism, through the distribution of the first three-way valve, a part of the hot energy is used for the warm air supply in the cab, ensuring the comfort of the driver under extremely cold conditions, and the other part of the hot energy is guided to the heat exchange mechanism, through the heat exchange of the heated cavity and the heat exchange pipeline, the hot energy is transmitted to the battery pack heating pipeline wrapped outside the battery pack, and the battery pack is heated by the battery pack heating pipeline, so that the battery pack reaches a temperature that can be high-voltage, thereby enabling the loader to start normally.

[0025] 2. By setting a first electromagnetic valve between the first three-way valve and the heat exchange pipeline, the first electromagnetic valve is used to control the on-off between the first three-way valve and the heat exchange pipeline and the flow of the heat exchange medium, when the first temperature detection sensor detects the ambient temperature outside the vehicle and transmits a signal to the vehicle controller, when the temperature detected by the first temperature detection sensor is higher than the set value, the vehicle controller controls the first electromagnetic valve to be closed, so that the hot energy generated by the diesel heating mechanism is all supplied to the air heater in the cab, reducing heat loss.

[0026] 3. By electrically connecting the switch mechanism and the vehicle controller, the vehicle controller judges the working condition of the first water pump and the diesel heating mechanism through the signal transmitted by the switch mechanism, when the first water pump and the diesel heating mechanism are in the shutdown state, even if the temperatures detected by the first temperature detection sensor and the third temperature detection sensor are lower than the set value, the vehicle controller does not react. BRIEF DESCRIPTION OF DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the utility model, and constitute a part of the utility model, the illustrative embodiments of the utility model and the explanation thereof are used to explain the utility model, and do not constitute an improper limitation on the utility model. In the drawings:

[0028] Figure 1 It is a connection structure schematic view of the utility model embodiment.

[0029] Mark: 100, diesel heating mechanism;200, first water pump;300, water tank;400, first three-way valve;500, heat exchange mechanism;510, heat exchange pipeline;520, heated cavity;530, temperature insulation layer;600, second water pump;700, first electromagnetic valve;800, second electromagnetic valve;900, battery pack;1000, air heater. DETAILED DESCRIPTION

[0030] In order to more clearly explain the overall concept of the utility model, the following will be combined with the drawings of the utility model to further describe the utility model in detail. Figure 1The present invention will be described in further detail below.

[0031] Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below. It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] This utility model discloses a diesel-powered heating system for heating batteries under extremely cold conditions. (Refer to...) Figure 1 A diesel-powered heating system for heating batteries under extremely cold conditions includes a diesel-powered heating mechanism 100, a first water pump 200, a water tank 300, a first three-way valve 400, a heat exchange mechanism 500, a second water pump 600, a battery pack 900 heating pipe, a first solenoid valve 700, a second solenoid valve 800, and a vehicle controller. The water tank 300 is connected to the diesel-powered heating mechanism 500 via the first water pump 200. The diesel-powered heating mechanism 500 is connected to the inlet of the first three-way valve 400, and the first outlet of the first three-way valve 400 is connected to a heater 1000 in the driver's cab. The heat exchange mechanism 500 includes a heat exchange pipe 510 and a heated chamber 520, and the second outlet of the first three-way valve 400 is connected to the inlet of the heat exchange pipe 510. The first solenoid valve 700 is connected between the first three-way valve 400 and the heat exchange pipe 510. The heated chamber 520 of the heat exchange mechanism 500 is connected to the inlet of the heating pipe of the battery pack 900 via the second water pump 600, and the outlet of the heating pipe of the battery pack 900 is connected to the heated chamber 520 of the heat exchange mechanism 500 via the second solenoid valve 800. The outlet of the heat exchange pipe 510 is connected to the water tank 300, and the heating pipe of the battery pack 900 covers the outside of the battery pack 900. The water tank 300 is connected to the heater 1000.

[0034] The water pumped into the diesel heating mechanism 100 is heated by generating heat energy by using the diesel heating mechanism 100, and through the distribution of the first three-way valve 400, part of the heat energy is used for the warm air supply in the cab, ensuring the comfort of the driver in extremely cold conditions, and the other part of the heat energy is guided to the heat exchange mechanism 500, and through the heat exchange of the heated cavity 520 and the heat exchange pipeline 510, the heat energy is transmitted to the battery pack 900 heating pipeline wrapped outside the battery pack 900, and the battery pack 900 is heated by using the battery pack 900 heating pipeline, so that the battery pack 900 reaches a temperature that can be high-voltage, so that the loader can be normally started.

[0035] With reference to Figure 1 The first electromagnetic valve 700, the second electromagnetic valve 800 and the second water pump 600 are electrically connected with the vehicle controller. The vehicle controller is electrically connected with a first temperature detection sensor, and the first temperature detection sensor is used to detect the ambient temperature outside the vehicle.

[0036] A first electromagnetic valve 700 is arranged between the first three-way valve 400 and the heat exchange pipeline 510, and the first electromagnetic valve 700 is used to control the on-off between the first three-way valve 400 and the heat exchange pipeline 510 and the flow of the heat exchange medium. When the first temperature detection sensor detects the ambient temperature outside the vehicle and transmits a signal to the vehicle controller, when the temperature detected by the first temperature detection sensor is higher than the set value, the vehicle controller controls the first electromagnetic valve 700 to be closed, so that the heat energy generated by the diesel heating mechanism 100 is all supplied to the warm air heater 1000 in the cab, reducing heat loss.

[0037] With reference to Figure 1 A second temperature detection sensor is arranged in the heated cavity 520, and the second temperature detection sensor is located in the heated cavity 520 close to the second water pump 600. The second temperature detection sensor is electrically connected with the vehicle controller.

[0038] By arranging the second temperature detection sensor in the heated cavity 520 close to the second water pump 600, the temperature of the circulating coolant in the battery pack 900 heating pipeline is collected by using the second temperature detection sensor, and the opening degree of the first electromagnetic valve 700 is adjusted by the vehicle controller according to the signal transmitted by the second temperature detection sensor, so that the temperature of the coolant heated by the battery pack 900 is controlled in a suitable range.

[0039] With reference to Figure 1 A third temperature detection sensor is arranged in the battery pack 900, and the third temperature detection sensor is used to detect the temperature of the battery cell. The third temperature detection sensor is electrically connected with the vehicle controller.

[0040] When the first temperature detection sensor detects that the external environment temperature is lower than the set value, but the temperature of the battery cell is higher than the set value, the vehicle controller controls the first electromagnetic valve 700, the second electromagnetic valve 800 and the second water pump 600 to be closed.

[0041] Referring to Figure 1 The heated cavity 520 is wrapped with a temperature insulation layer 530 outside. By wrapping the heat preservation layer outside the heated cavity 520, the heat loss at the heat exchange mechanism 500 is reduced.

[0042] Referring to Figure 1 The battery pack 900 is provided with a heating film for heating the battery cell, and the heating film is electrically connected with the vehicle controller. When the external temperature is higher than minus thirty degrees Celsius, the vehicle allows high pressure, and uses the diesel heating heat exchange system and the heating film to heat the battery together to improve the battery heating rate; when the external temperature is lower than minus thirty degrees Celsius, the vehicle does not allow high pressure, and uses the diesel heating heat exchange system to heat the battery, so that the battery can quickly meet the high pressure condition.

[0043] Referring to Figure 1 The switch mechanism is arranged in the cab, the first water pump 200 is electrically connected with the switch mechanism, and the diesel heating mechanism 100 is electrically connected with the switch mechanism. The switch mechanism is electrically connected with the vehicle controller.

[0044] The switch mechanism is arranged in the cab, and the working state of the first water pump 200 and the diesel heating mechanism 100 is controlled by the switch mechanism, so that the user operation convenience is improved. The vehicle controller judges the working state of the first water pump 200 and the diesel heating mechanism 100 through the signal transmitted by the switch mechanism, and when the first water pump 200 and the diesel heating mechanism 100 are in the shutdown state, even if the temperatures detected by the first temperature detection sensor and the third temperature detection sensor are lower than the set value, the vehicle controller does not react.

[0045] Each embodiment in the specification is described in a progressive manner, and the same and similar parts between each embodiment can be referred to each other, and each embodiment mainly describes the difference from other embodiments.

[0046] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape and principle of the present application should be covered in the protection scope of the present application. The unmentioned places in the present application can be realized by using or referring to the existing technology.

Claims

1. A wood-burning heat exchanger system for heating a battery in extreme cold conditions, characterized by: The application relates to a heating pipeline comprising a diesel heater (100), a first water pump (200), a water tank (300), a first three-way valve (400), a heat exchange mechanism (500), a second water pump (600) and a battery pack (900), wherein the water tank (300) is communicated with the diesel heat exchange mechanism (500) through the first water pump (200), the diesel heat exchange mechanism (500) is communicated with the inlet of the first three-way valve (400), the first outlet of the first three-way valve (400) is communicated with a heater (1000) in a cab, the heat exchange mechanism (500) comprises a heat exchange pipeline (510) and a heated cavity (520), the second outlet of the first three-way valve (400) is communicated with the inlet of the heat exchange pipeline (510), the heated cavity (520) of the heat exchange mechanism (500) is communicated with the battery pack (900) heating pipeline through the second water pump (600), the outlet of the heat exchange pipeline (510) is communicated with the water tank (300), the battery pack (900) heating pipeline is wrapped outside the battery pack (900), and the water tank (300) is communicated with the heater (1000).

2. A wood-burning heat exchange system for heating a battery in extreme cold conditions according to claim 1, characterized in that: A first electromagnetic valve (700) is arranged between the first three-way valve (400) and the heat exchange pipeline (510), the first electromagnetic valve (700) is electrically connected with a vehicle controller, the vehicle controller is electrically connected with a first temperature detection sensor, the first temperature detection sensor is used for detecting the ambient temperature outside the vehicle, and the second water pump (600) is electrically connected with the vehicle controller.

3. A wood-burning heat exchange system for heating a battery in extreme cold conditions according to claim 2, wherein: A second temperature detection sensor is arranged in the heated cavity (520), the second temperature detection sensor is located in the heated cavity (520) and close to the second water pump (600), and the second temperature detection sensor is electrically connected with the vehicle controller.

4. A wood-burning heat exchanger system for heating a battery in extreme cold conditions according to claim 2, characterized in that: A third temperature detection sensor is arranged in the battery pack (900), the third temperature detection sensor is used for detecting the temperature of the battery cell, and the third temperature detection sensor is electrically connected with the vehicle controller.

5. A wood-burning heat exchanger system for heating a battery in extreme cold conditions according to claim 1, characterized in that: The heated cavity (520) is wrapped with a temperature insulation layer (530) outside.

6. A wood-burning heat exchanger system for heating a battery in extreme cold conditions according to claim 2, characterized in that: A heating film for heating the battery cell is arranged in the battery pack (900), and the heating film is electrically connected with the vehicle controller.

7. A wood-burning heat exchange system for heating a battery in extreme cold conditions according to claim 1, wherein: A switch mechanism is arranged in the cab, the first water pump (200) is electrically connected with the switch mechanism, and the diesel heater (100) is electrically connected with the switch mechanism.

8. A wood-burning heat exchange system for heating a battery in extreme cold conditions according to claim 7, characterized in that: The switch mechanism is electrically connected with the vehicle controller.

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