Integrated heat management device and vehicle

Abstract

The utility model discloses an integrated heat management device, and the device comprises a fuel cell engine which is connected with a radiator and a heat exchanger, and is used for outputting first high-temperature cooling liquid to the radiator; the second heat exchanger is used for outputting second high-temperature cooling liquid to the heat exchanger; the radiator is used for carrying out heat dissipation on the first high-temperature cooling liquid and outputting first low-temperature cooling liquid formed after heat dissipation to the fuel cell engine; and the heat exchanger is respectively connected with the fuel cell engine and the refrigerating system and is used for carrying out heat exchange on a refrigerant from the refrigerating system and the second high-temperature cooling liquid and outputting the second low-temperature cooling liquid formed after heat exchange to the fuel cell engine. Meanwhile, the utility model further discloses a vehicle.

Description

Technical Field

[0001] The present application relates to an integrated thermal management device and a vehicle. Background Art

[0002] The fuel cell engine thermal management device is used to exchange heat when the fuel cell engine is working, so that the fuel cell engine can work at a suitable temperature. The existing thermal management device is that the water outlet of the fuel cell engine is connected to the water inlet of the radiator, and the water outlet of the radiator is connected to the water inlet of the fuel cell engine, and the cooling is performed by heat exchange between the radiator and the air. However, for commercial vehicles, as the power of the fuel cell engine continues to increase, the heat dissipation demand also increases significantly, so an auxiliary heat dissipation system needs to be added, but due to the limited structural layout of commercial vehicles, there is no extra space for auxiliary heat dissipation. Utility Model Content

[0003] In view of this, the embodiments of the present application hope to provide an integrated thermal management device and a vehicle to at least solve the above-mentioned technical problems.

[0004] To achieve the above purpose, the technical solution of this application is implemented as follows:

[0005] According to one aspect of the present application, an integrated thermal management device is provided, the device comprising:

[0006] A fuel cell engine is connected to the radiator and the heat exchanger, respectively, for outputting a first high-temperature coolant to the radiator; and for outputting a second high-temperature coolant to the heat exchanger;

[0007] a radiator, used to dissipate heat from the first high-temperature coolant and output a first low-temperature coolant formed after the heat dissipation to the fuel cell engine;

[0008] The heat exchanger is connected to the fuel cell engine and the refrigeration system respectively, and is used for exchanging heat between the refrigerant from the refrigeration system and the second high-temperature coolant, and outputting the second low-temperature coolant formed after the heat exchange to the fuel cell engine.

[0009] In the above scheme, the device also includes:

[0010] a first sensor and a first valve, wherein the first sensor is disposed at a first outlet of the fuel cell engine and is used to detect a first temperature of a coolant outputted from the fuel cell engine through the first outlet;

[0011] The first valve is connected to the first outlet, the radiator and the heat exchanger respectively, and is used to adjust the flow rate of the coolant output to the radiator and the heat exchanger according to the first temperature.

[0012] In the above scheme, the device also includes:

[0013] a second sensor and a third sensor, wherein the second sensor is disposed at the second outlet of the radiator, and is used to detect a second temperature of the first low-temperature coolant output through the second outlet; and the third sensor is disposed at the third outlet of the heat exchanger, and is used to detect a third temperature of the second low-temperature coolant output through the third outlet;

[0014] The first valve is further used to adjust the flow rate of the coolant output to the radiator and the heat exchanger according to the temperature difference between the second temperature and the third temperature.

[0015] In the above scheme, the device also includes:

[0016] A controller is connected to the first valve, the first sensor, the second sensor and the third sensor, respectively, and is used to control the first valve to adjust the flow of coolant output to the radiator and the heat exchanger when the first temperature is greater than a first temperature threshold; and is used to control the first valve to adjust the flow of coolant output to the radiator and the heat exchanger when the temperature difference between the second temperature and the third temperature is greater than a second temperature threshold.

[0017] In the above scheme, the device also includes:

[0018] a water pump, disposed between the first valve and the heat exchanger, for delivering the second high-temperature coolant to the heat exchanger;

[0019] The controller is also connected to the water pump, and is used to control the working state of the water pump conveying the second high-temperature coolant according to the first temperature and the temperature difference.

[0020] In the above scheme, the device also includes:

[0021] An expansion water tank is arranged between the fuel cell engine and the radiator, and is used to replenish coolant for the fuel cell engine and to discharge gas in a cooling circuit formed by the fuel cell engine and the radiator.

[0022] In the above scheme, the refrigeration system includes:

[0023] An air-conditioning compressor, a condenser, and a second valve, wherein the air-conditioning compressor is connected to the heat exchanger and the condenser, respectively, and is used to output high-temperature and high-pressure refrigerant to the condenser;

[0024] The condenser is used to cool the high-temperature and high-pressure refrigerant and output the cooled refrigerant to the heat exchanger;

[0025] The second valve is disposed between the heat exchanger and the condenser and connected to the controller, and is used to adjust the flow rate of the refrigerant cooled by the condenser and output to the heat exchanger under the control of the controller;

[0026] The heat exchanger is also used to output the refrigerant obtained after the heat exchange to the air-conditioning compressor.

[0027] In the above solution, the refrigeration system further comprises:

[0028] an air conditioner and a third valve, wherein the air conditioner is connected to the air conditioner compressor;

[0029] The third valve is disposed between the air conditioner and the condenser and is connected to the controller, and is used for adjusting the flow rate of the refrigerant cooled by the condenser and output to the air conditioner under the control of the controller.

[0030] In the above solution, the controller is also connected to the air-conditioning compressor, and is used to control the rotation speed of the air-conditioning compressor according to the temperature difference between the second temperature and the third temperature.

[0031] According to another aspect of the present application, a vehicle is provided, the vehicle comprising the integrated thermal management device as described in any one of the above items.

[0032] The integrated thermal management device and vehicle provided in the present application achieve heat dissipation for the fuel cell engine by integrating a cooling circuit formed by the fuel cell engine and the radiator and a refrigerant circuit formed by the fuel cell engine and the heat exchanger. This not only improves the heat dissipation efficiency of the fuel cell engine and meets the high power requirements of the fuel cell engine, but also eliminates the need to add an additional radiator or change the structural layout of the entire vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The structure of the integrated thermal management device in this application is shown in FIG. Figure 1 ;

[0034] Figure 2 The structure of the integrated thermal management device in this application is shown in FIG. Figure 2 . DETAILED DESCRIPTION

[0035] The technical solution of the present application is further elaborated in detail below in conjunction with the accompanying drawings and specific embodiments of the specification.

[0036] The various specific technical features in the various embodiments described in the specific implementation methods can be combined in various ways without contradiction. For example, different implementation methods can be formed by combining different specific technical features. In order to avoid unnecessary repetition, the various possible combinations of the specific technical features in this application will not be described separately.

[0037] In the embodiments of the present application, it should be noted that, unless otherwise specified and limited, the term "connection" should be understood in a broad sense. For example, it can be an electrical connection or a connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0038] It should be noted that the terms "first\second\third" involved in the embodiments of the present application are only used to distinguish similar objects, and do not represent a specific order for the objects. It is understandable that the specific order or sequence of "first\second\third" can be interchanged where permitted. It should be understood that the objects distinguished by "first\second\third" can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0039] The following combination Figure 1 and Figure 2 This application is described in detail.

[0040] Figure 1 The structure of the integrated thermal management device in this application is shown in FIG. Figure 1 , Figure 2 The structure of the integrated thermal management device in this application is shown in FIG. Figure 2 The integrated thermal management device may be located in a vehicle, including but not limited to a trailer, a tractor, a truck, etc. Figure 1 As shown, the integrated thermal management device includes: a fuel cell engine 10, a radiator 20 and a heat exchanger 30, wherein the first outlet of the fuel cell engine 10 is connected to the radiator 20 and the heat exchanger 30 respectively, and a first high-temperature coolant can be output to the radiator 20 through the first outlet of the fuel cell engine 10; and a second high-temperature coolant can be output to the heat exchanger 30. The radiator 20 can dissipate heat from the first high-temperature coolant through air, and output the first low-temperature coolant formed after the heat dissipation to the fuel cell engine 10 through the second outlet of the radiator 20. The heat exchanger 30 is connected to the fuel cell engine 10 and the refrigeration system 40 respectively, for exchanging heat between the refrigerant from the refrigeration system 40 and the second high-temperature coolant, and outputting the second low-temperature coolant formed after the heat exchange to the fuel cell engine 10 through the third outlet of the heat exchanger 30.

[0041] like Figure 2 As shown, the device also includes: a first sensor 50 and a first valve 60, wherein the first sensor 50 can be a temperature sensor, which is arranged at the first outlet of the fuel cell engine 10, and is used to detect the first temperature of the coolant output by the fuel cell engine 10 through the first outlet; the first valve 60 can be a liquid valve (such as a water valve), having at least three valve ports, wherein the first valve port is connected to the first outlet, the second valve port is connected to the radiator 20, and the third valve port is connected to the heat exchanger 30, and is used to adjust the coolant flow output to the radiator 20 and the heat exchanger 30 according to the first temperature detected by the first sensor 50.

[0042] like Figure 2 As shown, the device also includes: a second sensor 70 and a third sensor 80, wherein the second sensor 70 can be a temperature sensor, which is arranged at the second outlet of the radiator 20, and is used to detect the second temperature of the first low-temperature coolant output through the second outlet of the radiator 20; the third sensor 80 can be a temperature sensor, which is arranged at the third outlet of the heat exchanger 30, and is used to detect the third temperature of the second low-temperature coolant output through the third outlet of the heat exchanger 30; the first valve 60 is also used to adjust the coolant flow output to the radiator 20 and the heat exchanger 30 according to the temperature difference between the second temperature and the third temperature.

[0043] Here, the device may further include a comparator (not shown in the figure), which may be connected to the first sensor 50, the second sensor 70 and the third sensor 80. The comparator may compare the first temperature detected by the first sensor 50 with the first temperature threshold to obtain a first comparison result. The first valve 60 adjusts the coolant flow output to the radiator 20 and the heat exchanger 30 according to the first comparison result.

[0044] Here, the comparator can also compare the temperature difference between the second temperature detected by the second sensor 70 and the third temperature detected by the third sensor 80 with the second temperature threshold to obtain a second comparison result, and the first valve 60 adjusts the coolant flow output to the radiator 20 and the heat exchanger 30 according to the second comparison result.

[0045] like Figure 2As shown, the device also includes: a controller 90, which is connected to the first valve 60, the first sensor 50, the second sensor 70 and the third sensor 80 respectively, and is used to send a first control instruction to the first valve 60 when the first temperature is greater than a first temperature threshold, and the first control instruction is used to control the first valve 60 to adjust the flow of coolant output to the radiator 20 and the heat exchanger 30 according to the first temperature; and is used to send a second control instruction to the first valve 60 when the temperature difference between the second temperature and the third temperature is greater than a second temperature threshold, and the second control instruction is used to control the first valve 60 to adjust the flow of coolant output to the radiator 20 and the heat exchanger 30 according to the temperature difference between the second temperature and the third temperature.

[0046] Here, the first temperature threshold and the second temperature threshold may be the same or different, and may be specifically set according to the performance of the fuel cell engine. The specific temperature threshold is not limited here.

[0047] like Figure 2 As shown, the device also includes: a water pump 100, which is arranged between the first valve 60 and the heat exchanger 30, and is used to deliver the second high-temperature coolant to the heat exchanger 30; the controller 90 is also connected to the water pump 30, and is used to send a third control instruction to the water pump 100 according to the first temperature and the temperature difference, and the third control instruction is used to control the working state of the water pump 100 to deliver the second high-temperature coolant.

[0048] Here, the working state represents the start and stop of the water pump 100. For example, the water pump 100 can be in an operating state based on the third control instruction, and in the operating state, the second high-temperature coolant can be output to the heat exchanger 30. For another example, the water pump 100 can also be in a stopped state based on the third control instruction, and in the stopped state, the second high-temperature coolant is no longer output to the heat exchanger 30.

[0049] Here, the controller 90 may also send a fourth control instruction to the water pump 100 according to the first temperature and the temperature difference between the second temperature and the third temperature. The fourth control instruction is used to control the water pump 100 to adjust the rotation speed of the water pump 100 .

[0050] like Figure 2 As shown, the device also includes: an expansion water tank 110, which is arranged between the fuel cell engine 10 and the radiator 20, and is used to replenish coolant for the fuel cell engine 10 and to discharge gas in the cooling circuit formed by the fuel cell engine 10 and the radiator 20.

[0051] Here, the expansion water tank 110 is set at a higher position than other parts in the integrated thermal management device so that the gas in the cooling circuit formed by the fuel cell engine 10 and the radiator 20 can enter the expansion water tank 110, thereby effectively discharging and absorbing the gas and improving the exhaust effect of the cooling circuit.

[0052] like Figure 2 As shown, the refrigeration system 40 includes:

[0053] An air-conditioning compressor 41, a condenser 42 and a second valve 43, wherein the air-conditioning compressor 41 is respectively connected to the heat exchanger 30 and the condenser 42, and is used to output high-temperature and high-pressure refrigerant to the condenser 42; the condenser 42 is used to cool the high-temperature and high-pressure refrigerant, and output the cooled refrigerant to the heat exchanger 30; the second valve 43 is arranged between the heat exchanger 30 and the condenser 42, and is connected to the controller 90, and is used to adjust the flow rate of the refrigerant cooled by the condenser 42 to the heat exchanger 30 under the control of the controller 90; the heat exchanger 30 is also used to output the refrigerant obtained after the heat exchange to the air-conditioning compressor 41.

[0054] like Figure 2 As shown, the refrigeration system 40 may further include: an air conditioner 44 and a third valve 45, wherein the air conditioner 44 may be an air conditioner for a vehicle cab, and the air conditioner 44 is connected to the air conditioning compressor 45, and is used to provide hot air and / or cold air for the vehicle cab; the third valve 45 is disposed between the air conditioner 44 and the condenser 42, and is connected to the controller 90, and is used to adjust the flow rate of the refrigerant cooled by the condenser 42 output to the air conditioner 44 under the control of the controller 90.

[0055] Here, when the refrigeration system includes an air conditioner 44, the controller 90 can be connected to the second valve 43 and the third valve 45 to control the refrigerant flow rate output by the second valve 43 to the heat exchanger 30 and the refrigerant flow rate output by the third valve 45 to the air conditioner 44 according to the first temperature and / or the temperature difference between the second temperature and the third temperature.

[0056] In the present application, the controller 90 may also be connected to the air-conditioning compressor 41 to control the rotation speed of the air-conditioning compressor 41 according to the first temperature and the temperature difference between the second temperature and the third temperature.

[0057] The integrated thermal management device provided by the present application achieves heat dissipation of the fuel cell engine by integrating the cooling circuit formed by the fuel cell engine and the radiator and the refrigerant circuit formed by the fuel cell engine and the heat exchanger. This can not only improve the heat dissipation efficiency of the fuel cell engine and meet the high power requirements of the fuel cell engine, but also does not require the addition of an additional radiator or the change of the structural layout of the vehicle. In addition, by setting up multiple temperature sensors, it is possible to prevent the fuel cell engine from being damaged by excessive temperatures at the water inlet and outlet of the fuel cell engine, further improving the heat dissipation performance of the fuel cell engine.

[0058] The present application also provides a vehicle (not shown in the figure), which includes but is not limited to a trailer, a tow vehicle, a truck, etc. The vehicle includes the above Figure 1 and Figure 2 The integrated thermal management device shown can effectively improve the heat dissipation efficiency of the fuel cell engine and meet the high power requirements of the fuel cell engine without adding an additional radiator or changing the structural layout of the entire vehicle.

[0059] In the present application, the fuel cell engine can also be replaced by a power battery engine, or other engines, which can improve the heat dissipation performance while saving space for the layout of other components.

[0060] In the several embodiments provided in this application, it should be understood that the disclosed assemblies can be implemented in other ways. The above described embodiments are only exemplary, and the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0061] The features disclosed in several product embodiments provided in this application can be arbitrarily combined without conflict to obtain new product embodiments.

[0062] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An integrated thermal management device, characterized in that: The device comprises: A fuel cell engine is connected to the radiator and the heat exchanger, respectively, for outputting a first high-temperature coolant to the radiator; and for outputting a second high-temperature coolant to the heat exchanger; a radiator, used to dissipate heat from the first high-temperature coolant and output a first low-temperature coolant formed after the heat dissipation to the fuel cell engine; The heat exchanger is connected to the fuel cell engine and the refrigeration system respectively, and is used to perform heat exchange between the refrigerant from the refrigeration system and the second high-temperature coolant, and output the second low-temperature coolant formed after the heat exchange to the fuel cell engine.

2. The device according to claim 1, characterized in that The device also includes: a first sensor and a first valve, wherein the first sensor is disposed at a first outlet of the fuel cell engine and is used to detect a first temperature of a coolant outputted from the fuel cell engine through the first outlet; The first valve is connected to the first outlet, the radiator and the heat exchanger respectively, and is used to adjust the flow rate of the coolant output to the radiator and the heat exchanger according to the first temperature.

3. The device according to claim 2, characterized in that The device also includes: a second sensor and a third sensor, wherein the second sensor is disposed at the second outlet of the radiator, and is used to detect a second temperature of the first low-temperature coolant output through the second outlet; and the third sensor is disposed at the third outlet of the heat exchanger, and is used to detect a third temperature of the second low-temperature coolant output through the third outlet; The first valve is further used to adjust the flow rate of the coolant output to the radiator and the heat exchanger according to the temperature difference between the second temperature and the third temperature.

4. The device according to claim 3, characterized in that The device also includes: A controller is connected to the first valve, the first sensor, the second sensor and the third sensor, respectively, and is used to control the first valve to adjust the flow of coolant output to the radiator and the heat exchanger when the first temperature is greater than a first temperature threshold; and is used to control the first valve to adjust the flow of coolant output to the radiator and the heat exchanger when the temperature difference between the second temperature and the third temperature is greater than a second temperature threshold.

5. The device according to claim 4, characterized in that The device also includes: a water pump, disposed between the first valve and the heat exchanger, for delivering the second high-temperature coolant to the heat exchanger; The controller is also connected to the water pump, and is used to control the working state of the water pump conveying the second high-temperature coolant according to the first temperature and the temperature difference.

6. The device according to claim 1, characterized in that The device also includes: An expansion water tank is arranged between the fuel cell engine and the radiator, and is used to replenish coolant for the fuel cell engine and to discharge gas in a cooling circuit formed by the fuel cell engine and the radiator.

7. The device according to claim 5, characterized in that The refrigeration system comprises: An air-conditioning compressor, a condenser, and a second valve, wherein the air-conditioning compressor is connected to the heat exchanger and the condenser, respectively, and is used to output high-temperature and high-pressure refrigerant to the condenser; The condenser is used to cool the high-temperature and high-pressure refrigerant and output the cooled refrigerant to the heat exchanger; The second valve is disposed between the heat exchanger and the condenser and connected to the controller, and is used to adjust the flow rate of the refrigerant cooled by the condenser and output to the heat exchanger under the control of the controller; The heat exchanger is also used to output the refrigerant obtained after the heat exchange to the air-conditioning compressor.

8. The device according to claim 7, characterized in that The refrigeration system further comprises: an air conditioner and a third valve, wherein the air conditioner is connected to the air conditioner compressor; The third valve is disposed between the air conditioner and the condenser and is connected to the controller, and is used for adjusting the flow rate of the refrigerant cooled by the condenser and output to the air conditioner under the control of the controller.

9. The device according to claim 7, characterized in that The controller is also connected to the air-conditioning compressor, and is used to control the rotation speed of the air-conditioning compressor according to the first temperature and the temperature difference between the second temperature and the third temperature.

10. A vehicle, characterized in that: The vehicle comprises an integrated thermal management device as claimed in any one of claims 1 to 9.

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