Vehicle heat supply system, battery heat supply system and vehicle

Abstract

The utility model belongs to the technical field of vehicle auxiliary systems, and particularly relates to a vehicle heat supply system, a battery heat supply system and a vehicle. The vehicle heat supply system comprises a cargo compartment heat dissipation loop provided with a first radiator and a cargo compartment heat exchange assembly, and the cargo compartment heat exchange assembly is suitable for absorbing heat in a cargo compartment; the heat supply branch and the first radiator are arranged in parallel, and the heat supply branch is suitable for supplying heat to a cab or a power battery of the vehicle; the control valve assembly is connected with the heat supply branch and the cargo compartment heat dissipation loop and located between the cargo compartment heat exchange assembly and the first radiator, and the control valve assembly is suitable for controlling the cargo compartment heat exchange assembly to communicate with the first radiator and / or communicate with the heat supply branch. The arrangement mode of a cargo compartment refrigerating system and a heat supply system in an existing vehicle is improved, heat absorbed in the cargo compartment refrigerating process can be used for supplying heat to a cab or a power battery, the system is simplified, the energy utilization rate is increased, the manufacturing cost and the use cost of the vehicle can be effectively reduced, and the driving experience is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle auxiliary systems, and in particular relates to a vehicle heating system, a battery heating system and a vehicle. Background Art

[0002] At present, common refrigerated trucks and other special vehicles with refrigerated cargo compartments usually use a refrigeration system to extract the heat in the cargo compartment and discharge it into the outside atmosphere to achieve refrigeration of the cargo compartment. However, in an environment with low temperatures, the cab of the refrigerated truck also needs heating. For electric refrigerated trucks, the power battery also has a heating demand at low temperatures. Existing refrigerated trucks usually have independent systems for cargo compartment refrigeration and cab or power battery heating. However, the above-mentioned settings not only require the setting of a more complex refrigeration and heating system, which increases the manufacturing cost of the vehicle, but also the heat absorbed during the refrigeration process of the cargo compartment is not effectively utilized and is directly discharged into the atmosphere, resulting in energy waste. The heating system also requires additional energy consumption, the vehicle's economy is poor, and the cost of using the vehicle is increased. Utility Model Content

[0003] In view of this, in order to improve at least one of the above-mentioned problems existing in the prior art, the utility model provides a vehicle heating system, a battery heating system and a vehicle.

[0004] The technical solution of the utility model provides a vehicle heating system, which is applied to a vehicle with a cargo compartment, and the vehicle heating system includes: a cargo compartment heat dissipation circuit, in which a first radiator and a cargo compartment heat exchange component are provided, the cargo compartment heat exchange component is suitable for absorbing heat in the cargo compartment and releasing it into the liquid of the cargo compartment heat dissipation circuit, and the first radiator is suitable for dissipating heat to the outside; a heating branch, which is arranged in parallel with the first radiator, and the heating branch is suitable for supplying heat to the vehicle's cab or power battery; a control valve component, which is connected to the heating branch and the cargo compartment heat dissipation circuit and is located between the cargo compartment heat exchange component and the first radiator, and the control valve component is suitable for controlling the cargo compartment heat exchange component to be connected to the first radiator and / or to the heating branch.

[0005] In a feasible implementation, the cargo compartment heat dissipation circuit includes: a first pipeline, the first pipeline connecting the liquid outlet of the cargo compartment heat exchange component and the liquid inlet of the first radiator; a second pipeline, the second pipeline connecting the liquid inlet of the cargo compartment heat exchange component and the liquid outlet of the first radiator;

[0006] The control valve assembly includes: a first reversing valve, which is arranged in the first pipeline and connected to the heating branch, and the first reversing valve is suitable for connecting the cargo compartment heat exchange assembly with the heating branch and / or the first radiator; a stop valve, which is connected to an end of the heating branch away from the first reversing valve and the second pipeline, and the stop valve is suitable for connecting or disconnecting the heating branch with the second pipeline; a reversing controller, which is communicatively connected to the first reversing valve and the stop valve, and the reversing controller is suitable for obtaining heating instructions for the cab or the power battery, and controlling the working states of the first reversing valve and the stop valve accordingly.

[0007] In a feasible implementation, the first reversing valve is provided with a first valve port, a second valve port and a third valve port, the first valve port is connected to the pipeline connected to the liquid outlet of the cargo compartment heat exchange component, the second valve port is connected to the pipeline connected to the liquid inlet of the first radiator, and the third valve port is connected to the heating branch; wherein, the first reversing valve is a two-position three-way valve, and the first reversing valve is suitable for connecting the first valve port with the second valve port or the third valve port through a reversing operation; or the first reversing valve is a proportional valve, and the first reversing valve is suitable for connecting the first valve port with the second valve port and the third valve port at the same time through a reversing operation, and can adjust the flow of the second valve port and the third valve port.

[0008] In a feasible implementation, the heating branch includes a first branch and a second branch arranged in parallel; a first water pump is provided in the first branch, the liquid outlet of the first water pump is facing the direction of the connection stop valve, and the first branch is suitable for supplying heat to the power battery; a battery cooler is provided in the second branch, and the battery cooler is suitable for cooling the liquid in the first branch.

[0009] In a feasible implementation, the control valve assembly further includes: a second reversing valve, which is arranged in the pipeline connecting the heating branch and the first reversing valve, and is in communication connection with the reversing controller; wherein the second reversing valve is provided with a fourth valve port, a fifth valve port and a sixth valve port, the fourth valve port is connected to the third valve port through a pipeline, the fifth valve port is connected to the second branch, the sixth valve port is connected to the first branch, and the second reversing valve is suitable for connecting the sixth valve port to the fourth valve port or to the fifth valve port through a reversing operation. The second reversing valve can allow the liquid heated by the condenser of the cargo compartment to be directly introduced into the battery water channel to achieve heating of the battery.

[0010] In a feasible implementation, the heating branch includes: a third branch, in which a second radiator and a second water pump are provided; wherein the second radiator is suitable for dissipating heat into the cab, and the liquid outlet of the second water pump faces the direction of the connection stop valve.

[0011] In a feasible implementation, the cargo compartment heat dissipation circuit also includes: a third water pump, arranged in the second pipeline, the liquid outlet of the third water pump facing the liquid inlet connected to the cargo compartment heat exchange component; and / or a cooling fan, arranged corresponding to the first radiator, suitable for dissipating heat and cooling the first radiator.

[0012] In a feasible implementation, the cargo compartment heat exchange component includes: a cargo compartment cooling circuit, in which a cargo compartment evaporator is provided, and the cargo compartment evaporator is suitable for absorbing heat and cooling the cargo compartment of the vehicle; a cargo compartment condenser exchanger, in which a first water channel and a second water channel are provided, the first water channel is connected to the cargo compartment heat dissipation circuit, the second water channel is connected to the cargo compartment cooling circuit, and the first water channel is suitable for absorbing heat from the second water channel.

[0013] A battery heating system is also provided in the technical solution of the second aspect of the utility model, including: a power battery; a vehicle heating system as described in any one of the first aspects above, wherein a heating branch is arranged corresponding to the power battery and is suitable for exchanging heat for the power battery; a battery heating controller, which is communicatively connected with the power battery and the control valve assembly, and the battery heating controller is suitable for obtaining state parameters of the power battery and sending corresponding control instructions to the control valve assembly.

[0014] A vehicle is also provided in the technical solution of the third aspect of the utility model, comprising: the vehicle heating system in any one of the above-mentioned first aspect; or the battery heating system in any one of the above-mentioned second aspect.

[0015] The beneficial effects of the above technical solution of the utility model are embodied in:

[0016] The setting method of the cargo compartment cooling system and heating system in existing vehicles has been improved. The heat absorbed during the cargo compartment cooling process can be used to heat the cab or power battery. This not only simplifies the system, but also improves energy utilization, can effectively reduce vehicle manufacturing costs and use costs, and improve driving experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is a schematic diagram of a vehicle heating system provided by an embodiment of the utility model.

[0018] Figure 2 Shown is a schematic diagram of the heat transfer process of a vehicle heating system provided by an embodiment of the utility model.

[0019] Figure 3 Shown is a schematic block diagram of a control valve assembly provided by an embodiment of the utility model.

[0020] Figure 4 Shown is a schematic diagram of another vehicle heating system provided by an embodiment of the utility model.

[0021] Figure 5 Shown is a schematic diagram of yet another vehicle heating system provided by an embodiment of the utility model.

[0022] Figure 6Shown is a schematic block diagram of yet another control valve assembly provided by an embodiment of the utility model.

[0023] Figure 7 Shown Figure 5 Schematic diagram of the vehicle heating system in the non-heating state.

[0024] Figure 8 Shown Figure 5 Schematic diagram of the vehicle heating system in the heating state.

[0025] Fig. 9 Shown is a schematic diagram of yet another vehicle heating system provided by an embodiment of the utility model.

[0026] Fig.10 Shown is a schematic diagram of a battery heating system provided by an embodiment of the utility model.

[0027] Among them, Figure 7 The dotted line in the figure represents the circulation loop for cooling and heat dissipation. Figure 8 The dot-dash line in the figure represents a circulation loop for heating. DETAILED DESCRIPTION

[0028] In the description of the application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise clearly and specifically limited. In the embodiment of the present application, all directional indications (such as up, down, left, right, front, back, top, bottom ...) are only used to explain the relative position relationship, motion conditions, etc. between the components under a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their deformations are intended to cover non-exclusive inclusions. For example, the process, method, system, product or equipment comprising a series of steps or units are not limited to the steps or units listed, but optionally also include the steps or units not listed, or optionally also include other steps or units inherent to these processes, methods, products or equipment.

[0029] In addition, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] Application Overview

[0032] Refrigerated trucks are a common special-purpose vehicle. Since the vehicle is equipped with a refrigerated cargo compartment for transporting goods that need to be refrigerated, a corresponding refrigeration system needs to be configured for the cargo compartment. The refrigeration system is used to extract the heat in the cargo compartment and discharge it into the outside atmosphere to achieve cooling of the cargo compartment.

[0033] However, in low-temperature environments, the cab of a refrigerated truck also needs heating, and a special cab air conditioning system is generally used; and for electric refrigerated trucks, the power battery will affect battery performance at low temperatures, so in order to ensure the normal power supply of the power battery, a special battery heating system is usually provided. In existing refrigerated trucks, the refrigeration system, cab air conditioning system, and battery heating system are independent of each other, which makes the vehicle structure and pipeline layout more complicated, and increases the manufacturing cost of the vehicle; at the same time, the heat absorbed during the refrigeration process of the cargo compartment is not effectively utilized, but directly discharged into the atmosphere, causing energy waste, and the heating system of the cab and power battery also requires additional energy consumption, resulting in poor vehicle economy and increased vehicle use costs.

[0034] Some embodiments of the vehicle heating system, the battery heating system and the vehicle in the technical solution of the present utility model are provided below.

[0035] In an embodiment of the first aspect of the present invention, a vehicle heating system 100 is provided, which is applied to a vehicle with a cargo compartment. The vehicle heating system 100 in this embodiment is described below using a refrigerated truck as an example.

[0036] like Figure 1 and Figure 2As shown, the vehicle heating system 100 includes a cargo compartment heat dissipation circuit 1, a heating branch 2 and a control valve assembly 3. The cargo compartment heat dissipation circuit 1 is provided with a first radiator 12 and a cargo compartment heat exchange assembly 13. In actual application, the cargo compartment heat exchange assembly 13 can exchange heat with the cargo compartment, absorb the heat in the cargo compartment and release it into the liquid in the cargo compartment heat dissipation circuit 1 to reduce the temperature in the cargo compartment, thereby achieving a cooling effect on the cargo compartment; the first radiator 12 is used to dissipate heat to the outside. When the cargo compartment heat dissipation circuit 1 is in a conducting state, the liquid in the cargo compartment heat dissipation circuit 1 flows through the first radiator 12 and releases heat to the outside to achieve heat dissipation to the outside. The heating branch 2 is arranged in parallel with the first radiator 12. When used, the heating branch 2 can heat the vehicle's cab or power battery to achieve cab heating or battery heating. The control valve assembly 3 is connected to the heating branch 2 and the cargo compartment heat dissipation circuit 1, and the connection between the control valve assembly 3 and the cargo compartment heat dissipation circuit 1 is located between the cargo compartment heat exchange assembly 13 and the first radiator 12. The connection state of the cargo compartment heat dissipation circuit 1 with the heating branch 2 and the first radiator 12 can be controlled by the control valve assembly 3. Specifically, the cargo compartment heat exchange assembly 13 can be connected to the first radiator 12 to realize the self-conduction of the cargo compartment heat dissipation circuit 1, the cargo compartment heat exchange assembly 13 can be connected to the heating branch 2, and the cargo compartment heat exchange assembly 13 can also be connected to the first radiator 12 and the heating branch 2 at the same time.

[0037] When in use, corresponding control operations can be performed according to the actual use needs of the vehicle. For example, when the cab or power battery has a heating demand, the cargo compartment heat exchange component 13 can be connected to the heating branch 2 through the control valve component 3. At this time, the heat absorbed during the cargo compartment refrigeration process can be used to heat the cab or power battery through the cargo compartment heat exchange component 13 and the heating branch 2 to achieve the function of indoor air conditioning or battery heating; when the cab and the power battery do not have a heating demand, the cargo compartment heat exchange component 13 can be connected to the first radiator 12 through the control valve component 3, so that the heat absorbed during the cargo compartment refrigeration process is released to the outside through the cargo compartment heat dissipation circuit 1 and the first radiator 12 to achieve normal heat dissipation. Of course, the cargo compartment heat exchange component 13 can also be connected to the first radiator 12 and the heating branch 2 at the same time through the control valve component 3. At this time, part of the heat absorbed during the cargo compartment refrigeration process can be used to heat the cab or power battery, and the other part of the heat can be released to the outside.

[0038] It is understandable that in an environment with low temperatures, power batteries are prone to power depletion, and heating the power batteries can help ensure battery performance.

[0039] It should be noted that the vehicle in this embodiment includes but is not limited to an electric refrigerated vehicle or a hybrid refrigerated vehicle, and of course it can also be an internal combustion engine vehicle. In this case, the heating branch 2 can heat the cab or other equipment of the vehicle. In addition, in the present invention, the liquid in the pipeline can be a coolant or other fluid medium, and the following situation is the same.

[0040] The vehicle heating system 100 in this embodiment improves the setting method of the cargo compartment refrigeration system and the heating system in the existing vehicle. It can not only realize the normal cooling of the cargo compartment, but also use the heat absorbed during the cargo compartment cooling process to heat the cab or the power battery. It not only simplifies the system, but also improves the energy utilization rate, can effectively reduce the vehicle manufacturing cost and use cost, and improve the driving experience.

[0041] In a further embodiment of the present invention, Figures 1 to 3 As shown, in the vehicle heating system 100, the cargo compartment heat dissipation circuit 1 includes a first pipeline 111 and a second pipeline 112; the two ends of the first pipeline 111 are respectively connected to the liquid outlet of the cargo compartment heat exchange component 13 and the liquid outlet of the first radiator 12, and the two ends of the second pipeline 112 are respectively connected to the liquid inlet of the cargo compartment heat exchange component 13 and the liquid outlet of the first radiator 12. Correspondingly, the control valve assembly 3 includes a first reversing valve 31, a stop valve 32 and a reversing controller 33; the first reversing valve 31 is arranged in the first pipeline 111, the first reversing valve 31 is connected to the heating branch 2, and is suitable for connecting the cargo compartment heat exchange component 13 with the heating branch 2 and / or the first radiator 12, that is, the first reversing valve 31 can be operated by reversing to connect the first pipeline 111, at this time the cargo compartment heat exchange component 13 is connected to the first radiator 12 through the first pipeline 111, and the first The reversing valve 31 can also disconnect the first pipeline 111 and connect the cargo compartment heat exchange assembly 13 with the heating branch 2 through a reversing operation. The first reversing valve 31 can also connect the cargo compartment heat exchange assembly 13 with the heating branch 2 while the first pipeline 111 is connected through a reversing operation. The stop valve 32 is arranged at one end of the heating branch 2 away from the first reversing valve 31, and the stop valve 32 is connected to the second pipeline 112. The stop valve 32 can connect or disconnect the heating branch 2 with the second pipeline 112. The reversing controller 33 is respectively connected to the first reversing valve 31 and the stop valve 32 in communication to control the working states of the first reversing valve 31 and the stop valve 32.

[0042] In actual application, under normal conditions, the reversing controller 33 controls the first reversing valve 31 and the stop valve 32 to make the cargo compartment heat dissipation circuit 1 conduct itself and realize normal cooling and heat dissipation. The reversing controller 33 can obtain a heating instruction for the cab or the power battery. When receiving the above heating instruction, the reversing controller 33 performs corresponding control operations on the first reversing valve 31 and the stop valve 32 to connect the cargo compartment heat exchange component 13 with the heating branch 2 to heat the cab or the power battery.

[0043] Furthermore, if Figure 3 , Figure 4 The first reversing valve 31 shown is provided with a first valve port 311, a second valve port 312 and a third valve port 313; the first valve port 311 is connected to the pipeline connected to the liquid outlet of the cargo compartment heat exchange assembly 13, the second valve port 312 is connected to the pipeline connected to the liquid inlet of the first radiator 12, and the third valve port 313 is connected to the heating branch 2.

[0044] Among them, in a specific implementation, the first reversing valve 31 specifically adopts a two-position three-way valve; the first reversing valve 31 can be operated by the valve core reversing operation, so that the first valve port 311 is connected with the second valve port 312, at this time, the first pipeline 111 is connected, and the heating branch 2 is disconnected from the first pipeline 111; the first reversing valve 31 can also be operated by the valve core reversing operation, so that the first valve port 311 is connected with the third valve port 313, at this time, the first pipeline 111 is disconnected, and the cargo compartment heat exchange component 13 is connected with the heating branch 2. Preferably, the first reversing valve 31 can be used as follows Figure 4 The two-position three-way solenoid valve shown in FIG. The first reversing valve 31 in this embodiment has a simple structure, relatively low cost, and is convenient for connection and reversing control.

[0045] In another specific implementation, the first reversing valve 31 adopts a proportional valve, and the first reversing valve 31 can make the first valve port 311 communicate with the second valve port 312 and the third valve port 313 at the same time through the valve core reversing operation. At this time, the cargo compartment heat exchange assembly 13 is simultaneously connected with the first radiator 12 and the heating branch 2, and the flow of the second valve port 312 and the third valve port 313 can be adjusted according to the use needs, so that part of the heat absorbed in the cargo compartment cooling process heats the cab or the power battery through the heating branch 2, and the other part of the heat is released to the outside through the first radiator 12. Preferably, the first reversing valve 31 can specifically adopt a proportional reversing valve or a proportional regulating valve. Of course, when the first reversing valve 31 is a proportional valve, the second valve port 312 or the third valve port 313 can also be controlled to be closed, so that the first valve port 311 is connected to the third valve port 313 alone or is connected to the second valve port 312 alone, so that the cargo compartment heat exchange component 13 is connected to the heating branch 2 alone or is connected to the first radiator 12 alone, which will not be repeated here.

[0046] Furthermore, if Figure 5 As shown, the heating branch 2 specifically includes a first branch 21 and a second branch 22 which are arranged in parallel. A first water pump 211 is provided in the first branch 21, and the liquid outlet of the first water pump 211 faces the direction of the connection stop valve 32; a battery cooler 221 is provided in the second branch 22. In practical applications, the first branch 21 can be used as a battery water channel for the power battery. When the first branch 21 is connected to the cargo compartment heat exchange assembly 13, the first branch 21 can heat the power battery; the second branch 22 can cool the liquid. When the first branch 21 is connected to the second branch 22, the liquid can flow through the battery cooler 221 for cooling, so that the first branch 21 can cool and dissipate heat for the power battery.

[0047] The first branch 21 can directly adopt the existing battery water channel of the power battery, or can be connected to the existing water channel of the power battery. The battery cooler 221 can specifically adopt the existing combined chiller of the power battery.

[0048] It can be understood that under normal temperature environment, the power battery needs to be cooled down during normal operation. At this time, it is not necessary to heat the power battery. The battery cooler 221 of the second branch 22 can be connected to the first branch 21 to achieve cyclic cooling of the power battery. The setting of the heating branch 2 in this embodiment can meet the cooling demand of the power battery during normal operation and the heating demand of the power battery in a low temperature environment.

[0049] Furthermore, if Figure 5 and Figure 6In the example in FIG. 3 , the control valve assembly 3 further includes a second reversing valve 34. The second reversing valve 34 is arranged in the pipeline between the heating branch 2 and the first reversing valve 31. Specifically, the second reversing valve 34 is provided with a fourth valve port 341, a fifth valve port 342 and a sixth valve port 343; the fourth valve port 341 is connected to the third valve port 313 of the first reversing valve 31 through a pipeline, the fifth valve port 342 is connected to the second branch 22, and the sixth valve port 343 is connected to the first branch 21. The second reversing valve 34 can make the sixth valve port 343 communicate with the fourth valve port 341 through the valve core reversing operation. At this time, when the first valve port 311 of the first reversing valve 31 is also connected to the third valve port 313, the first branch 21 is connected to the cargo compartment heat exchange assembly 13 through the first reversing valve 31 and the second reversing valve 34, and the second branch 22 is disconnected, so that the heated liquid generated by the cargo compartment heat exchange assembly 13 flows into the first branch 21, so as to use the heat of the liquid to heat the power battery; the second reversing valve 34 can also make the sixth valve port 343 communicate with the fifth valve port 342 through the valve core reversing operation. At this time, the first branch 21 is connected to the second branch 22 to form a loop, and the first valve port 311 of the first reversing valve 31 is connected to the second valve port 312, so that the cargo compartment heat dissipation circuit 1 itself forms a circulation loop. The second reversing valve 34 is connected to the reversing controller 33 in communication to perform reversing operation according to the instruction of the reversing controller 33.

[0050] In this embodiment, the first reversing valve 31 and the second reversing valve 34 cooperate to realize different communication relationships between the cargo compartment heat exchange assembly 13, the first radiator 12 and the first branch 21 and the second branch 22 of the heating branch 2 of the cargo compartment heat dissipation circuit 1, so as to meet normal heat dissipation and heating requirements. The control valve assembly 3 has a relatively simple structure and is easy to connect and control.

[0051] In a further embodiment of the present invention, Figure 5 As shown, the cargo compartment heat dissipation circuit 1 also includes a third water pump 14 and a cooling fan 15. The third water pump 14 is specifically arranged in the second pipeline 112, and the liquid outlet of the third water pump 14 is toward the liquid inlet of the cargo compartment heat exchange component 13, so that the liquid in the pipeline circulates toward the liquid inlet of the cargo compartment heat exchange component 13 through the pumping operation of the third water pump 14. The cooling fan 15 is arranged corresponding to the first radiator 12, and the airflow movement on the surface of the first radiator 12 can be accelerated by the rotation of the cooling fan 15 to promote the heat dissipation and cooling of the first radiator 12, which is conducive to further improving the heat dissipation efficiency. The cooling fan 15 can specifically adopt an electronic fan to facilitate electronic control operation; a corresponding temperature threshold can be set, and when the temperature of the first radiator 12 exceeds the temperature threshold, the cooling fan 15 is turned on to accelerate the heat dissipation.

[0052] Furthermore, if Figure 5As shown, the cargo compartment heat exchange assembly 13 specifically includes a cargo compartment cooling circuit 131 and a cargo compartment condenser exchanger 132. The cargo compartment condenser exchanger 132 is provided with a first water channel 1321 and a second water channel 1322. The first water channel 1321 is connected to the cargo compartment heat dissipation circuit 1, and the second water channel 1322 is connected to the cargo compartment cooling circuit 131; the cargo compartment cooling circuit 131 is provided with a cargo compartment evaporator 1311. In actual application, the cargo compartment cooling circuit 131 is set corresponding to the cargo compartment to absorb the heat in the cargo compartment to achieve refrigeration of the cargo compartment; in addition, as shown in FIG. Figure 5 In the example in FIG. 1 , a fourth water pump 1312 may also be provided in the cargo compartment cooling circuit 131, and the fourth water pump 1312 pumps liquid, so that the liquid in the cargo compartment cooling circuit 131 circulates. When the liquid flows through the second water channel 1322 of the cargo compartment condenser exchanger 132, it exchanges heat with the first water channel 1321, and the liquid in the first water channel 1321 absorbs the heat in the second water channel 1322, so that the heat in the cargo compartment cooling circuit 131 is exchanged to the cargo compartment heat dissipation circuit 1, and then releases the heat to the outside through the first radiator 12, or supplies heat through the heating branch 2.

[0053] Specifically, under normal temperature conditions, Figure 7 In the example, the cargo compartment of the vehicle is in a normal cooling state, and the power battery is also in a normal operating state. At this time, under the control of the reversing controller 33, the valve core of the first reversing valve 31 is switched to the first valve port 311 and the second valve port 312 are connected (such as Figure 7 The valve core of the second reversing valve 34 is switched to the sixth valve port 343 and communicates with the fifth valve port 342 (such as Figure 7 The stop valve 32 is in the closed state. The cargo compartment heat dissipation circuit 1 forms a large cycle, and the first branch 21 and the second branch 22 of the heating branch 2 form a small cycle, and the two cycles are independent of each other. The cargo compartment cooling circuit 131 absorbs the heat in the cargo compartment and enters the cargo compartment heat dissipation circuit 1 through the cargo compartment condenser exchanger 132, and then the heat is released from the first radiator 12 to the outside atmosphere through the large cycle; at the same time, the liquid in the heating branch 2 circulates to cool the power battery.

[0054] In special cases, such as low temperature environments, Figure 8 In the example in FIG. 8 , the cargo compartment of the vehicle is in a normal cooling state, but the power battery needs to be heated. At this time, under the control of the reversing controller 33, the valve core of the first reversing valve 31 is switched to the first valve port 311 and connected to the third valve port 313 (as in the upper position in FIG. 8 ), and the valve core of the second reversing valve 34 is switched to the sixth valve port 343 and connected to the fourth valve port 341 (as in FIG. 8 ). Figure 8The stop valve 32 is in the on state. The first radiator 12 in the cargo compartment heat dissipation circuit 1 is disconnected from the cargo compartment condenser exchanger 132, the first branch 21 of the heating branch 2 is connected to the cargo compartment condenser exchanger 132 to form a loop, and the second branch 22 is also disconnected. The cargo compartment cooling circuit 131 absorbs heat in the cargo compartment and enters the first branch 21 of the heating branch 2 through the cargo compartment condenser exchanger 132 to heat the power battery.

[0055] In a further embodiment of the present invention, Fig. 9 As shown, in another implementation of the heating branch 2, the heating branch 2 specifically includes a third branch 23, in which a second radiator 231 and a second water pump 232 are provided, and the third branch 23 can be connected to the cargo compartment heat exchange component 13 to form a loop by reversing the valve core of the first reversing valve 31. In actual application, the second radiator 231 can be arranged corresponding to the cab of the vehicle, and the liquid in the loop circulates under the pumping action of the second water pump 232, so that the heat generated during the refrigeration process of the cargo compartment is introduced into the second radiator 231 of the third branch 23 through the cargo compartment heat exchange component 13, so as to release the heat through the second radiator 231 and heat the cab. When the cab does not need to be heated, the valve core of the first reversing valve 31 is reversed to the cargo compartment heat dissipation circuit 1 to be connected, and the heat is normally dissipated to the outside, and the third branch 23 is disconnected from the cargo compartment heat dissipation circuit 1.

[0056] Furthermore, as required, the second radiator 231 may also be provided with a corresponding electronic fan to accelerate the movement of airflow and deliver hot air to the cab.

[0057] Furthermore, the cargo compartment heat exchange component 13 may also be Figure 7 and Figure 8 The structural form shown in the figure, that is, the form including the cargo compartment condenser exchanger 132 and the cargo compartment cooling circuit 131, has the same specific working principle as that in the above embodiment and will not be repeated here.

[0058] In an embodiment of the second aspect of the present utility model, a battery heating system 400 is also provided. Figures 1 to 10 As shown, it includes a power battery 410, a vehicle heating system 100 in any embodiment of the first aspect described above, and a battery heating controller 420. The power battery 410 is used to power the vehicle; the heating branch 2 of the vehicle heating system 100 is arranged corresponding to the power battery 410, and the battery heating controller 420 is connected in communication with the power battery 410 and the control valve assembly 3 of the vehicle heating system 100. The battery heating controller 420 can obtain the state parameters of the power battery 410 to determine whether the power battery 410 needs to be heated according to the state parameters. Among them, the state parameters include but are not limited to the battery temperature.

[0059] When the power battery 410 does not need to be heated, the battery heating controller 420 sends a corresponding control instruction to the control valve assembly 3, so that the control valve assembly 3 performs a corresponding control operation to make the cargo compartment heat dissipation circuit 1 normally conductive, and the heating branch 2 is disconnected from the cargo compartment heat dissipation circuit 1. The heat generated during the cargo compartment cooling process is normally released to the external environment through the first radiator 12, and the heating branch 2 does not supply heat to the power battery 410 at this time.

[0060] When the power battery 410 needs to be heated, the battery heating controller 420 sends a control instruction requiring heating to the control valve assembly 3, causing the control valve assembly 3 to perform corresponding control operations to connect the cargo compartment heat exchange assembly 13 with the heating branch 2. At this time, the heat generated during the cargo compartment cooling process flows into the heating branch 2 through the cargo compartment heat exchange assembly 13 to provide heat to the power battery 410, thereby maintaining the power battery 410 at the corresponding operating temperature.

[0061] Further, when the heating branch 2 is provided with Figure 7 and Figure 8 When the battery cooler 221 is used, it can also play a role in cooling down the power battery 410 during normal operation.

[0062] It should be noted that, in practical applications, necessary sensor devices of the power battery 410, such as a temperature sensor, etc., may be provided according to usage requirements.

[0063] The battery heating system 400 in this embodiment, when applied to vehicles such as refrigerated trucks that need cargo compartment cooling, can directly use the heat absorbed by the cargo compartment cooling process to heat and keep the power battery 410 warm when the power battery 410 needs to be heated. There is no need to set up an additional battery heating device, which improves energy utilization, saves energy and is environmentally friendly, and is conducive to reducing vehicle use costs.

[0064] In addition, the battery heating system 400 in this embodiment also has all the beneficial effects of the vehicle heating system 100 in any embodiment of the first aspect mentioned above, which will not be repeated here.

[0065] The third aspect of the present invention also provides a vehicle in an embodiment, wherein in one implementation, the vehicle includes the vehicle heating system in any embodiment of the first aspect, and can heat the cab or the power battery using the heat absorbed during the cooling process of the cargo compartment.

[0066] In another implementation, the vehicle includes the battery heating system in any embodiment of the second aspect above, which can use the heat absorbed during the cargo compartment cooling process to heat the power battery.

[0067] Furthermore, the vehicle in this embodiment includes but is not limited to a refrigerated truck; preferably, the vehicle may be an electric refrigerated truck or a hybrid refrigerated truck.

[0068] In addition, the vehicle in this embodiment also has all the beneficial effects of the vehicle heating system in any embodiment of the first aspect above or the battery heating system in any embodiment of the second aspect above, which will not be repeated here.

[0069] The basic principle of the present invention is described above in conjunction with specific embodiments. However, it should be pointed out that the advantages, strengths, effects, etc. mentioned in the present invention are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present invention. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not limitation, and the above details do not limit the present invention to being implemented by adopting the above specific details.

[0070] The block diagrams of the devices, apparatuses, equipment and systems involved in the present utility model are only illustrative examples and are not intended to require or imply that they must be connected, arranged and configured in the manner shown in the block diagrams. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment and systems can be connected, arranged and configured in any manner. Words such as "including", "comprising", "having" and the like are open words, referring to "including but not limited to" and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them unless the context clearly indicates otherwise. The words "such as" used here refer to the phrase "such as but not limited to" and can be used interchangeably with them. It should also be noted that in the apparatus and equipment of the present utility model, each component can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present utility model.

[0071] In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize some variations, modifications, changes, additions and sub-combinations thereof. Various modifications to these aspects are very obvious to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the present invention. Therefore, the present invention is not intended to be limited to the aspects shown herein, but in accordance with the widest range consistent with the principles and novel features of this utility model.

[0072] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle heating system, applied to a vehicle with a cargo compartment, characterized in that: The vehicle heating system comprises: A cargo compartment heat dissipation circuit (1), wherein the cargo compartment heat dissipation circuit (1) is provided with a first radiator (12) and a cargo compartment heat exchange component (13), wherein the cargo compartment heat exchange component (13) is adapted to absorb heat in the cargo compartment and release it into liquid in the cargo compartment heat dissipation circuit (1), and wherein the first radiator (12) is adapted to dissipate heat to the outside; A heating branch (2) is arranged in parallel with the first radiator (12), and the heating branch (2) is suitable for supplying heat to a cab of a vehicle or a power battery (410); A control valve assembly (3) is connected to the heating branch (2) and the cargo compartment heat dissipation circuit (1), and is located between the cargo compartment heat exchange assembly (13) and the first radiator (12). The control valve assembly (3) is suitable for controlling the cargo compartment heat exchange assembly (13) to be connected to the first radiator (12) and / or to the heating branch (2).

2. The vehicle heating system according to claim 1, characterized in that: The cargo compartment heat dissipation circuit (1) comprises: a first pipeline (111), the first pipeline (111) connecting a liquid outlet of the cargo compartment heat exchange component (13) and a liquid inlet of the first radiator (12); a second pipeline (112), the second pipeline (112) connecting a liquid inlet of the cargo compartment heat exchange assembly (13) and a liquid outlet of the first radiator (12); The control valve assembly (3) comprises: a first reversing valve (31), arranged in the first pipeline (111) and connected to the heating branch (2), the first reversing valve (31) being adapted to enable the cargo compartment heat exchange assembly (13) to communicate with the heating branch (2) and / or the first radiator (12); a stop valve (32) connected to an end of the heating branch (2) away from the first reversing valve (31) and the second pipeline (112), the stop valve (32) being suitable for connecting or disconnecting the heating branch (2) and the second pipeline (112); A reversing controller (33) is communicatively connected with the first reversing valve (31) and the shut-off valve (32), and the reversing controller (33) is suitable for obtaining a heating instruction for the cab or the power battery (410), and controlling the working states of the first reversing valve (31) and the shut-off valve (32) accordingly.

3. The vehicle heating system according to claim 2, characterized in that: The first reversing valve (31) is provided with a first valve port (311), a second valve port (312) and a third valve port (313), the first valve port (311) being connected to a pipeline connected to a liquid outlet of the cargo compartment heat exchange assembly (13), the second valve port (312) being connected to a pipeline connected to a liquid inlet of the first radiator (12), and the third valve port (313) being connected to the heating branch (2); Wherein, the first reversing valve (31) is a two-position three-way valve, and the first reversing valve (31) is suitable for connecting the first valve port (311) with the second valve port (312) or the third valve port (313) through a reversing operation; or The first reversing valve (31) is a proportional valve. The first reversing valve (31) is suitable for simultaneously connecting the first valve port (311) with the second valve port (312) and the third valve port (313) through a reversing operation, and is capable of adjusting the flow rates of the second valve port (312) and the third valve port (313).

4. The vehicle heating system according to claim 3, characterized in that: The heating branch (2) comprises a first branch (21) and a second branch (22) which are arranged in parallel; A first water pump (211) is provided in the first branch (21), a liquid outlet of the first water pump (211) faces a direction connected to the stop valve (32), and the first branch (21) is suitable for supplying heat to the power battery (410); A battery cooler (221) is provided in the second branch (22), and the battery cooler (221) is suitable for cooling the liquid in the first branch (21).

5. The vehicle heating system according to claim 4, characterized in that: The control valve assembly (3) further comprises: A second reversing valve (34) is arranged in a pipeline connecting the heating branch (2) and the first reversing valve (31), and is communicatively connected to the reversing controller (33); Wherein, the second reversing valve (34) is provided with a fourth valve port (341), a fifth valve port (342) and a sixth valve port (343); the fourth valve port (341) is connected to the third valve port (313) through a pipeline, the fifth valve port (342) is connected to the second branch (22), and the sixth valve port (343) is connected to the first branch (21); the second reversing valve (34) is suitable for connecting the sixth valve port (343) with the fourth valve port (341) or with the fifth valve port (342) through a reversing operation.

6. The vehicle heating system according to claim 3, characterized in that: The heating branch (2) comprises: A third branch (23), wherein a second radiator (231) and a second water pump (232) are provided in the third branch (23); The second radiator (231) is suitable for dissipating heat into the cab, and the liquid outlet of the second water pump (232) faces the direction connected to the stop valve (32).

7. The vehicle heating system according to any one of claims 2 to 6, characterized in that: The cargo compartment heat dissipation circuit (1) further comprises: a third water pump (14) disposed in the second pipeline (112), wherein the liquid outlet of the third water pump (14) faces the liquid inlet connected to the cargo compartment heat exchange component (13); and / or A heat dissipation fan (15) is arranged corresponding to the first heat sink (12) and is suitable for dissipating heat and cooling the first heat sink (12).

8. The vehicle heating system according to any one of claims 1 to 6, characterized in that: The cargo compartment heat exchange assembly (13) comprises: A cargo compartment cooling circuit (131), wherein a cargo compartment evaporator (1311) is provided in the cargo compartment cooling circuit (131), and the cargo compartment evaporator (1311) is suitable for absorbing heat and cooling the cargo compartment of the vehicle; A cargo compartment condenser exchanger (132), wherein a first water channel (1321) and a second water channel (1322) are provided in the cargo compartment condenser exchanger (132), wherein the first water channel (1321) is connected to the cargo compartment heat dissipation circuit (1), and the second water channel (1322) is connected to the cargo compartment cooling circuit (131), and the first water channel (1321) is suitable for absorbing heat from the second water channel (1322).

9. A battery heating system, characterized in that: include: Power battery (410); The vehicle heating system according to any one of claims 1 to 8, wherein the heating branch (2) is arranged corresponding to the power battery (410) and is suitable for performing heat exchange on the power battery (410); A battery heating controller (420) is communicatively connected with the power battery (410) and the control valve assembly (3), and the battery heating controller (420) is suitable for obtaining state parameters of the power battery (410) and sending corresponding control instructions to the control valve assembly (3).

10. A vehicle, characterized in that: include: The vehicle heating system according to any one of claims 1 to 8; or The battery heating system as claimed in claim 9.

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