Hydrogen fuel cell thermal management integration module and electric vehicle

Abstract

The invention relates to the technical field of automobile thermal management, in particular to a hydrogen fuel cell thermal management integration module and an electric automobile. A first heat exchange side of the heat exchanger is used for being connected with an electric pile, an outlet of a second heat exchange side is used for being connected with an inlet of a warm air assembly, a water inlet of the evaporator is used for being connected with an outlet of the warm air assembly, a water outlet of the evaporator is connected with an inlet of a battery water pump, and an outlet of the battery water pump is used for being connected with an inlet of a battery pack. An inlet of the warm air water pump is connected with an outlet of the battery pack, and an outlet of the warm air water pump is connected with an inlet of the second heat exchange side; the heat exchanger, the warm air water pump, the battery water pump and the evaporator are fixed on the front surface of the mounting substrate; the back surface of the mounting substrate is fixed with an outer shell of a galvanic pile. According to the hydrogen fuel cell thermal management integrated module and the electric vehicle, the problems that an existing passenger vehicle hydrogen fuel cell system mostly adopts a column-type structure in the thermal management aspect, the number of parts and connecting pipelines is large, and the space utilization rate of an overall framework is low are solved.

Description

Technical Field

[0001] The present application relates to the field of automotive thermal management technology, and in particular to a hydrogen fuel cell thermal management integrated module and an electric vehicle. Background Art

[0002] Hydrogen fuel cell electric vehicles are one of the key research projects in new energy. Compared with hybrid and pure electric vehicles, they have certain advantages in environmental emissions, driving range, efficiency and performance. The current mainstream hydrogen fuel cell models include commercial trucks and passenger cars.

[0003] However, existing passenger car hydrogen fuel cell systems mostly use a split structure for thermal management, with a large number of components and connecting pipelines, and low overall architectural space utilization. Summary of the invention

[0004] The purpose of this application is to provide a hydrogen fuel cell thermal management integrated module and an electric vehicle, thereby solving the problem that existing passenger car hydrogen fuel cell systems mostly adopt a split structure in thermal management, have a large number of components and connecting pipelines, and have low overall architectural space utilization.

[0005] According to a first aspect of the present application, a hydrogen fuel cell thermal management integrated module is provided, which includes a heat exchanger, a heater water pump, a battery water pump, an evaporator and a mounting substrate; the heat exchanger includes a first heat exchange side and a second heat exchange side, the first heat exchange side is used to connect to the battery stack, the outlet of the second heat exchange side is used to connect to the inlet of the heater component, the water inlet of the evaporator is used to connect to the outlet of the heater component, the water outlet of the evaporator is connected to the inlet of the battery water pump, the outlet of the battery water pump is used to connect to the inlet of the battery pack, the inlet of the heater water pump is used to connect to the outlet of the battery pack, and the outlet of the heater water pump is connected to the inlet of the second heat exchange side; the mounting substrate includes a front side and a back side opposite to each other in the thickness direction thereof, the heat exchanger, the heater water pump, the battery water pump and the evaporator are all fixed to the front side of the mounting substrate, and the back side of the mounting substrate is used to be fixed to the outer shell of the battery stack.

[0006] In any of the above technical solutions, further, the hydrogen fuel cell thermal management integrated module also includes a battery three-way valve and a first three-way joint; the first inlet of the battery three-way valve is used to connect to the outlet of the warm air assembly, the third outlet of the battery three-way valve is connected to the water inlet of the evaporator, the second outlet of the battery three-way valve is connected to the first inlet of the first three-way joint, the second inlet of the first three-way joint is used to connect to the outlet of the battery pack, and the outlet of the first three-way joint is connected to the inlet of the warm air water pump; the battery three-way valve is fixed to the outer wall of the evaporator.

[0007] In any of the above technical solutions, further, the hydrogen fuel cell thermal management integrated module also includes a one-way valve, a second three-way joint and a third three-way joint; the inlet of the second three-way joint is connected to the outlet of the first three-way joint, the first outlet of the second three-way joint is connected to the inlet of the warm air water pump, the second outlet of the second three-way joint is connected to the inlet of the one-way valve, the outlet of the one-way valve is connected to the first inlet of the third three-way joint, the second inlet of the third three-way joint is connected to the third outlet of the battery three-way valve, and the outlet of the third three-way joint is connected to the water inlet of the evaporator.

[0008] In any of the above technical solutions, further, the hydrogen fuel cell thermal management integrated module also includes a stack three-way valve and a fourth three-way joint; the first inlet of the stack three-way valve is used to connect with the outlet of the stack, the third outlet of the stack three-way valve is connected to the inlet of the first heat exchange side, the outlet of the first heat exchange side is connected to the first inlet of the fourth three-way joint, the second inlet of the fourth three-way joint is connected to the second outlet of the stack three-way valve, and the outlet of the fourth three-way joint is used to connect with the inlet of the stack; the stack three-way valve is fixed to the outer wall of the heat exchanger.

[0009] In any of the above technical solutions, further, the outer wall of the evaporator is welded with studs, and the battery three-way valve is fixedly connected to the outer wall of the evaporator through the studs on the evaporator; and / or, the outer wall of the heat exchanger is welded with studs, and the battery stack three-way valve is fixedly connected to the outer wall of the heat exchanger through the studs on the heat exchanger.

[0010] In any of the above technical solutions, further, the pipeline between the third outlet of the battery three-way valve and the water inlet of the evaporator, the pipeline between the second outlet of the three-way valve and the first inlet of the first three-way joint, the pipeline between the inlet of the second three-way joint and the outlet of the first three-way joint, the pipeline between the first outlet of the second three-way joint and the inlet of the warm air water pump, the pipeline between the second outlet of the second three-way joint and the first inlet of the third three-way joint, the pipeline between the second inlet of the third three-way joint and the third outlet of the battery three-way valve, the pipeline between the outlet of the third three-way joint and the water inlet of the evaporator, the pipeline between the third outlet of the stack three-way valve and the inlet of the first heat exchange side, the pipeline between the outlet of the first heat exchange side and the first inlet of the fourth three-way joint, and the pipeline between the second inlet of the fourth three-way joint and the second outlet of the stack three-way valve are all rubber tubes; elastic clamps are provided at both ends of the rubber tube; and the one-way valve is arranged in the pipeline between the second outlet of the second three-way joint and the first inlet of the third three-way joint.

[0011] In any of the above technical solutions, further, the hydrogen fuel cell thermal management integrated module also includes an electronic expansion valve; the evaporator also includes a refrigerant inlet and a refrigerant outlet; the outlet of the electronic expansion valve is fixedly connected to the refrigerant inlet, the inlet of the electronic expansion valve is used to be connected to the outlet of the condenser, and the refrigerant outlet is used to be connected to the inlet of the compressor.

[0012] In any of the above technical solutions, further, the mounting substrate is integrally formed by stamping.

[0013] In any of the above technical solutions, further, the heat exchanger, the heater water pump, the battery water pump, the evaporator and the outer shell of the battery stack are all fixed to the mounting base by a screw assembly.

[0014] According to a second aspect of the present application, an electric vehicle is provided, comprising the hydrogen fuel cell thermal management integrated module as described above.

[0015] The hydrogen fuel cell thermal management integrated module of the present application includes a heat exchanger, a heater water pump, a battery water pump, an evaporator and a mounting substrate. Among them, the heat exchanger includes a first heat exchange side and a second heat exchange side, the first heat exchange side is used to connect with the battery stack, the outlet of the second heat exchange side is used to connect with the inlet of the heater assembly, the water inlet of the evaporator is used to connect with the outlet of the heater assembly, the water outlet of the evaporator is connected with the inlet of the battery water pump, the outlet of the battery water pump is used to connect with the inlet of the battery pack, the inlet of the heater water pump is used to connect with the outlet of the battery pack, and the outlet of the heater water pump is connected with the inlet of the second heat exchange side. The mounting substrate includes a front and a back side opposite to each other in the thickness direction thereof, the heat exchanger, the heater water pump, the battery water pump and the evaporator are all fixed to the front side of the mounting substrate, and the back side of the mounting substrate is used to be fixed to the outer shell of the battery stack.

[0016] According to the above technical features, the beneficial effects of this application are:

[0017] The hydrogen fuel cell thermal management integrated module of the present application integrates heat exchangers, heater water pumps, battery water pumps, evaporators and other equipment and related pipelines into one, uses an installation baseplate as a supporting structure, and compactly and orderly integrates the heater water pumps, battery water pumps, evaporators and water-water heat exchangers that were originally arranged in a row in the vehicle model. While fully considering the overall performance and economic benefits, it effectively improves space utilization and reduces material and labor costs.

[0018] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram showing the overall structure of a hydrogen fuel cell thermal management integrated module according to an embodiment of the present application;

[0021] Figure 2 Show Figure 1 Schematic diagram of the structure after the installation base plate is hidden;

[0022] Figure 3 A schematic diagram showing the assembly structure of a mounting substrate according to an embodiment of the present application is shown;

[0023] Figure 4 A schematic diagram showing the assembly structure of a screw assembly according to an embodiment of the present application is shown;

[0024] Figure 5 A schematic diagram showing the assembly structure of a battery three-way valve and a stack three-way valve according to an embodiment of the present application;

[0025] Figure 6 A schematic diagram showing the assembly structure of an electronic expansion valve according to an embodiment of the present application is shown;

[0026] Figure 7 A schematic diagram showing the structure of a one-way valve according to an embodiment of the present application;

[0027] Figure 8 A schematic diagram of a hydrogen fuel cell thermal management integrated module according to an embodiment of the present application is shown.

[0028] Icons: 100-heat exchanger; 110-heat exchanger fixing plate; 200-heat air water pump; 300-battery water pump; 400-evaporator; 410-evaporator fixing plate; 500-mounting base plate; 610-battery three-way valve; 620-stack three-way valve; 710-first three-way connector; 720-second three-way connector; 730-third three-way connector; 740-fourth three-way connector; 800-electronic expansion valve; 900-check valve; 910-valve housing; 920-valve core; 930-limiting rod; 11-stud; 12-nut assembly; 20-first screw assembly; 21-first nut; 23-first shock-absorbing pad; 24-first gasket; 30-second screw assembly; 31-second nut; 33-second shock-absorbing pad; 40-third screw assembly; 41-third screw; 50-elastic clamp. DETAILED DESCRIPTION

[0029] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but in addition to the operations that must occur in a particular order, changes that will be apparent after understanding the disclosure of the present application may be made. In addition, in order to improve clarity and brevity, descriptions of features known in the art may be omitted.

[0030] The features described herein may be implemented in different forms and should not be interpreted as being limited to the examples described herein. Rather, the examples described herein have been provided only to illustrate some of the many possible ways of implementing the methods, devices and / or systems described herein that will be apparent after understanding the disclosure of the present application.

[0031] Throughout the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, “bound to”, “over”, or “covering” another element, it may be directly “on”, “connected to”, “bound to”, “over”, or “covering” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on”, “directly connected to”, “directly bound to”, “directly over”, or “directly covering” another element, there may be no other elements present between them.

[0032] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0033] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, component, region, layer, or portion referred to may also be referred to as the second member, component, region, layer, or portion.

[0034] For ease of description, spatial relational terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element will subsequently be "below" or "lower" relative to the other element. Therefore, the term "above" includes both "above" and "below" orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0035] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprise" and "have" list the stated features, quantities, operations, components, elements and / or their combinations that exist, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0036] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0037] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0038] Prior to the filing of this application, existing hydrogen fuel cell systems for passenger vehicles mostly adopted a split-type structure for thermal management, with a large number of components and connecting pipes, and low overall architectural space utilization.

[0039] In view of this, according to the first aspect of the present application, a hydrogen fuel cell thermal management integrated module is provided, thereby solving the problem that the existing passenger car hydrogen fuel cell system mostly adopts a split structure in thermal management, has a large number of component components and connecting pipelines, and has a low overall architecture space utilization rate. Figures 1 to 8 A hydrogen fuel cell thermal management integrated module according to some embodiments of the present application is described.

[0040] like Figure 1 , Figure 2 and Figure 8As shown, the hydrogen fuel cell thermal management integrated module of the present application includes a heat exchanger 100 (water-water heat exchanger 100), a heater water pump 200, a battery water pump 300, an evaporator 400 and a mounting substrate 500. The heat exchanger 100 includes a first heat exchange side and a second heat exchange side, the first heat exchange side is used to connect to the battery stack, the outlet of the second heat exchange side is used to connect to the inlet of the heater assembly, the water inlet of the evaporator 400 is used to connect to the outlet of the heater assembly, the water outlet of the evaporator 400 is connected to the inlet of the battery water pump 300, the outlet of the battery water pump 300 is used to connect to the inlet of the battery pack, the inlet of the heater water pump 200 is used to connect to the outlet of the battery pack, and the outlet of the heater water pump 200 is connected to the inlet of the second heat exchange side. The mounting substrate 500 includes a front side and a back side opposite to each other in the thickness direction thereof. The heat exchanger 100, the heater water pump 200, the battery water pump 300 and the evaporator 400 are all fixed to the front side of the mounting substrate 500, and the back side of the mounting substrate 500 is used to be fixed to the outer shell of the battery stack.

[0041] As described above, the hydrogen fuel cell thermal management integrated module of the present application integrates the heat exchanger 100, the heater water pump 200, the battery water pump 300, the evaporator 400 and other equipment and related pipelines into one, and uses the mounting base 500 as the supporting structure to compactly and orderly integrate the heater water pump 200, the battery water pump 300, the evaporator 400 and the water-water heat exchanger 100 that were arranged separately in the original vehicle model. While fully considering the overall performance and economic benefits, it effectively improves the space utilization rate and reduces the material and labor costs.

[0042] Furthermore, in order to facilitate the assembly of various devices and realize more thermal management heating (cooling) modes. Figure 1 , Figure 2 and Figure 8 As shown, the hydrogen fuel cell thermal management integrated module also includes a battery three-way valve 610 and a first three-way joint 710. The first inlet of the battery three-way valve 610 is used to connect to the outlet of the warm air assembly, the third outlet of the battery three-way valve 610 is connected to the water inlet of the evaporator 400, the second outlet of the battery three-way valve 610 is connected to the first inlet of the first three-way joint 710, the second inlet of the first three-way joint 710 is used to connect to the outlet of the battery pack, and the outlet of the first three-way joint 710 is connected to the inlet of the warm air water pump 200.

[0043] Furthermore, in order to facilitate the assembly of various devices and realize more thermal management heating (cooling) modes. Figure 1 , Figure 2 and Figure 8As shown, the hydrogen fuel cell thermal management integrated module further includes a one-way valve 900, a second three-way joint 720 and a third three-way joint 730. The inlet of the second three-way joint 720 is connected to the outlet of the first three-way joint 710, the first outlet of the second three-way joint 720 is connected to the inlet of the warm air water pump 200, the second outlet of the second three-way joint 720 is connected to the inlet of the one-way valve 900, the outlet of the one-way valve 900 is connected to the first inlet of the third three-way joint 730, the second inlet of the third three-way joint 730 is connected to the third outlet of the battery three-way valve 610, and the outlet of the third three-way joint 730 is connected to the water inlet of the evaporator 400.

[0044] Furthermore, in order to facilitate the assembly of various devices and realize more thermal management heating (cooling) modes. Figure 1 , Figure 2 and Figure 8 As shown, the hydrogen fuel cell thermal management integrated module also includes a stack three-way valve 620 and a fourth three-way joint 740. Among them, the first inlet of the stack three-way valve 620 is used to connect to the outlet of the stack, the third outlet of the stack three-way valve 620 is connected to the inlet of the first heat exchange side, the outlet of the first heat exchange side is connected to the first inlet of the fourth three-way joint 740, the second inlet of the fourth three-way joint 740 is connected to the second outlet of the stack three-way valve 620, and the outlet of the fourth three-way joint 740 is used to connect to the inlet of the stack.

[0045] In the embodiments of the present application, Figure 1 and Figure 2 As shown, the stack three-way valve 620 is fixed to the outer wall of the heat exchanger 100 , and the battery three-way valve 610 is fixed to the outer wall of the evaporator 400 .

[0046] As an example, Figure 5 and Figure 6 As shown, three groups of welding studs 11 are respectively reserved on the bottom plates of the evaporator 400 and the water-water heat exchanger 100, which are used to arrange and place the battery three-way valve 610 and the stack three-way valve 620. Taking the evaporator 400 as an example, during installation, the mounting hole of the battery three-way valve 610 is installed on the welding stud 11, and then fixed by the nut assembly 12. In this way, the evaporator 400, the water-water heat exchanger 100, the stack three-way valve 620 and the battery three-way valve 610 are compactly and orderly integrated into one, further improving the space utilization and reducing the material and labor costs.

[0047] Furthermore, in order to facilitate the assembly of various devices and realize more thermal management heating (cooling) modes. Figure 1 , Figure 6 and Figure 8As shown, the hydrogen fuel cell thermal management integrated module also includes an electronic expansion valve 800. Among them, the evaporator 400 also includes a refrigerant inlet and a refrigerant outlet, the outlet of the electronic expansion valve 800 is fixedly connected to the refrigerant inlet, the inlet of the electronic expansion valve 800 is used to connect to the outlet of the condenser, and the refrigerant outlet is used to connect to the inlet of the compressor. In this way, the electronic expansion valve 800 is integrated at the refrigerant side inlet and outlet of the evaporator 400, which can further improve the space utilization and reduce the material and labor costs.

[0048] In the embodiment of the present application, the heat exchanger 100 , the heater water pump 200 , the battery water pump 300 , the evaporator 400 and the outer shell of the battery stack are all fixed to the mounting base plate 500 by means of screw assemblies.

[0049] Specifically, Figure 3 As shown, the heater water pump 200 is fixedly connected to the mounting base plate 500 and the outer shell of the stack through two first screw assemblies 20. Figure 4 As shown, the first screw assembly 20 includes a first screw, a first nut 21, a first shock-absorbing pad 23 and a first gasket 24. The first screw passes through the warm air water pump 200, the mounting substrate 500 and the outer shell of the battery stack in sequence, the nut of the first screw and the mounting substrate 500 lock the warm air water pump 200, the first nut 21 and the mounting substrate 500 lock the outer shell of the battery stack, the first shock-absorbing pad 23 is sleeved on the first screw and is located between the mounting substrate 500 and the outer shell of the battery stack, and the first gasket 24 is located between the first nut 21 and the outer shell of the battery stack.

[0050] Specifically, Figure 3 As shown, the battery water pump 300, the heat exchanger 100 and the evaporator 400 are all fixedly connected to the mounting base plate 500 by a plurality of third screw assemblies 40. Figure 4 As shown, the third screw assembly 40 includes a third screw 41 and a third nut. The battery water pump 300, the heat exchanger 100 and the evaporator 400 are all locked by the third nut and the nut of the third screw 41. Figure 5 As shown, a heat exchanger fixing plate 110 is fixed to the outside of the heat exchanger 100, and the heat exchanger fixing plate 110 is fixedly connected to the mounting base plate 500 through a third screw assembly 40. In this embodiment, the heat exchanger 100 is at a certain distance from the heat exchanger fixing plate 110, in order to prevent the vibration of the rigid connection from being transmitted to the heat exchanger 100. Similarly, an evaporator fixing plate 410 is fixed to the outside of the evaporator 400, and the evaporator fixing plate 410 is fixedly connected to the mounting base plate 500 through a third screw assembly 40. In this embodiment, the evaporator 400 is at a certain distance from the evaporator fixing plate 410, in order to prevent the vibration of the rigid connection from being transmitted to the evaporator 400.

[0051] Specifically, Figure 3As shown, the mounting base plate 500 is fixedly connected to the outer shell of the stack through three second screw assemblies 30. Figure 4 As shown, the second screw assembly 30 includes a second screw, a second nut 31, a second shock-absorbing pad 33 and a second gasket. The second screw passes through the mounting substrate 500 and the outer shell of the battery stack in sequence, the second nut 31 and the mounting substrate 500 lock the outer shell of the battery stack, the second shock-absorbing pad 33 is sleeved on the second screw, and a part of it is located between the nut and the mounting substrate 500, and the other part is located between the mounting substrate 500 and the outer shell of the battery stack, and the second gasket is located between the nut and the second shock-absorbing pad 33.

[0052] It is also worth mentioning that in the embodiments of the present application, Figure 1 and Figure 2 As shown, the pipeline between the third outlet of the battery three-way valve 610 and the water inlet of the evaporator 400, the pipeline between the second outlet of the battery three-way valve 610 and the first inlet of the first three-way joint 710, the pipeline between the inlet of the second three-way joint 720 and the outlet of the first three-way joint 710, the pipeline between the first outlet of the second three-way joint 720 and the inlet of the warm air water pump 200, the pipeline between the second outlet of the second three-way joint 720 and the first inlet of the third three-way joint 730, the pipeline between the second inlet of the third three-way joint 730 and the third outlet of the battery three-way valve 610, the pipeline between the outlet of the third three-way joint 730 and the water inlet of the evaporator 400, the pipeline between the third outlet of the stack three-way valve 620 and the inlet of the first heat exchange side, the pipeline between the outlet of the first heat exchange side and the first inlet of the fourth three-way joint 740, and the pipeline between the second inlet of the fourth three-way joint 740 and the second outlet of the stack three-way valve 620 are all rubber tubes.

[0053] The two ends of the rubber tube are sleeved with elastic clamps 50. In this way, when installing, the two ends of the rubber tube are sleeved on the pipe mouths of two devices respectively, and the two ends are sealed and clamped with elastic clamps 50 then.

[0054] Moreover, the mounting substrate 500 of the present application adopts a reliable and practical sheet metal stamping process, is stamped and formed in one piece, and the relevant components are arranged on the front, and the back is assembled on the outer shell of the battery stack through a shock-absorbing structure, which is strong enough, beautiful and durable. With such a configuration, the hydrogen fuel cell thermal management integrated module of the present application abandons the existing channel-integrated flow plate structure, and adopts EPDM rubber materials, universal molding processes, and universal standard parts such as elastic clamps 50, which can effectively avoid problems such as heat loss and thermal interference of the flow plate structure while optimizing the overall manufacturing cost.

[0055] In the embodiments of the present application, Figure 4 As shown, the one-way valve 900 is disposed in the pipeline between the second outlet of the second three-way connector 720 and the first inlet of the third three-way connector 730 . Figure 4 The position marked with number 900 is the installation position of the one-way valve 900 in the pipeline.

[0056] like Figure 7 As shown, the one-way valve 900 includes a valve housing 910, a valve core 920 and a stop rod 930. The valve core 920 is spherical, a chamber is provided inside the valve housing 910, a one-way liquid inlet and a one-way liquid outlet are provided at both ends of the valve housing 910, the stop rod 930 is fixed in the chamber, the maximum cross-sectional area of ​​the valve core 920 is larger than the cross-sectional area of ​​the one-way liquid inlet, the maximum cross-sectional area of ​​the valve core 920 is smaller than the cross-sectional area of ​​the one-way liquid outlet, and the valve core 920 can move between the one-way liquid inlet and the stop rod 930.

[0057] To sum up, the hydrogen fuel cell thermal management integrated module of the present application integrates the battery water pump 300, heater water pump 200, evaporator 400, electronic expansion valve 800, water-water heat exchanger 100, stack three-way valve 620, and battery three-way valve 610 that were originally arranged separately in the vehicle model into one in a compact and orderly manner. While fully considering the overall performance and economic benefits, it effectively improves the space utilization rate and reduces the material and labor costs. After two actual vehicle assembly comparisons, the integrated thermal management module of the present application has reduced the number of distributed parts from 38 sets to 25 sets, and the standards for connectors, clamps, etc. have been reduced from 28 sets to 18 sets. It can achieve platformization and modularization and is suitable for various vehicle models.

[0058] The hydrogen fuel cell thermal management integrated module of the present application is connected and assembled with the fuel cell stack shell structure as a whole, forming a system similar to a traditional fuel engine assembly, which can effectively coordinate the heat distribution and management of the stack, battery, and air conditioning heater.

[0059] The hydrogen fuel cell thermal management integrated module of the present application adopts a mounting base plate 500 and an external hose connection method, which is a non-channel plate integrated type, and comprehensively considers the advantages of integrated modularization and distributed low cost and mature technology.

[0060] The hydrogen fuel cell thermal management integrated module of the present application abandons the existing channel-integrated flow plate structure, and adopts EPDM rubber material and universal molding process as well as universal standard parts such as pipe tees, built-in one-way valves 900, and elastic clamps 50. While optimizing the overall manufacturing cost, it can also effectively avoid problems such as heat loss and thermal interference of the flow plate structure.

[0061] See below for Figure 1 and Figure 8 Describe the nine functional modes of the hydrogen fuel cell thermal management integrated module of the present application.

[0062] like Figure 1 and Figure 8As shown, the second inlet A of the first three-way joint 710 is connected to the battery pack outlet, the outlet B of the battery water pump 300 is connected to the battery pack inlet, the first inlet C of the battery stack three-way valve 620 is connected to the battery stack outlet, the outlet D of the fourth three-way joint 740 is connected to the battery stack inlet, the outlet E of the second heat exchange side is connected to the inlet of the heater assembly, the first inlet F of the battery three-way valve 610 is connected to the outlet of the heater assembly, the inlet G of the electronic expansion valve 800 is connected to the outlet of the condenser, and the refrigerant outlet H of the evaporator 400 is connected to the inlet of the compressor.

[0063] The hydrogen fuel cell thermal management integrated modules of this application can be divided into the following types according to their functional modes:

[0064] 1. Warm air PTC battery single heating mode.

[0065] 2. Warm air PTC passenger cabin single heating mode.

[0066] 3. Dual heating modes for heater PTC battery and passenger compartment.

[0067] 4. The waste heat from the battery stack is utilized in the battery single heating mode.

[0068] 5. The waste heat from the battery stack is used to heat the cabin.

[0069] 6. The waste heat from the battery stack is used in a dual heating mode for the battery and the passenger compartment.

[0070] 7. Battery waste heat is used to heat the passenger compartment (battery waste heat recovery).

[0071] 8. The dual heat sources of battery stack waste heat and warm air PTC provide dual heating modes for the battery and passenger compartment.

[0072] 9. Battery cooling mode.

[0073] Figure 8 The schematic diagram of the hydrogen fuel cell thermal management integrated module is shown. Figure 1 The actual assembly diagram of the hydrogen fuel cell thermal management integrated module is shown.

[0074] like Figure 1 and Figure 8As shown, the functional action description of mode (1) is as follows: when the ambient temperature is low or extremely low, the battery pack needs to be heated to maintain its optimal performance. After the vehicle VCU receives the low temperature signal from the inlet and outlet temperature sensors of the battery pack, it sends LIN message signals to the heater component (the heater component includes a heater PTC and a heater core), and the heater PTC starts the heating task and the battery three-way valve 610 connects the 1-3 interface (the first inlet and the third outlet of the battery three-way valve 610 are connected) to start the large circulation condition; at the same time, a PWM speed control signal is sent to the battery water pump 300 and the heater water pump 200. At this time, the HVAC air conditioning fan in the passenger compartment is not turned on, the battery water pump 300 and the heater water pump 200 work in series, and the heater PTC only heats the battery pack.

[0075] like Figure 1 and Figure 8 As shown, the functional action description of mode (2) is: when the ambient temperature is low or extremely low, the air conditioning and heating function of the passenger compartment is turned on, and the vehicle VCU sends LIN message signals to the heater component, the heater PTC starts the heating task, and the battery three-way valve 610 is connected to the 1-2 interface (the first inlet and the second outlet of the battery three-way valve 610 are connected) to start the small circulation condition; at the same time, a PWM speed control signal is sent to the heater water pump 200, at this time the battery water pump 300 is not turned on, the passenger compartment HVAC air conditioning fan is turned on, and the heater PTC only heats the passenger compartment.

[0076] like Figure 1 and Figure 8 As shown, the functional action description of mode (3) is: when the ambient temperature is low or extremely low, there is a dual heating demand for the passenger compartment and the battery, the vehicle VCU sends LIN message signals to the heater component respectively, the heater PTC starts the heating task and the battery three-way valve 610 connects the 1-3 interface to start the large circulation condition; at the same time, a PWM speed control signal is sent to the heater water pump 200 and the battery water pump 300. At this time, the passenger compartment HVAC air conditioning fan is turned on, the battery water pump 300 and the heater water pump 200 work in series, and the heater PTC heats the passenger compartment and the battery pack at the same time.

[0077] like Figure 1 and Figure 8 As shown, the functional action description of mode (4) is: when the ambient temperature is low or extremely low, the battery stack is turned on, and the battery pack has a single heating demand, the vehicle VCU sends LIN message signals to the battery stack three-way valve 620 to connect the 1-3 interface (the first inlet and the third outlet of the battery stack three-way valve 620 are connected) to start the battery stack waste heat recovery condition and the battery three-way valve 610 to connect the 1-3 interface to start the large circulation condition; at the same time, a PWM speed control signal is sent to the heater water pump 200 and the battery water pump 300, and the HVAC air conditioning fan in the passenger compartment is not turned on. The battery water pump 300 and the heater water pump 200 work in series, and the waste heat of the battery stack is only used to heat the battery pack.

[0078] like Figure 1 and Figure 8 As shown, the functional action description of mode (5) is: when the ambient temperature is low or extremely low, the battery stack is turned on, and there is a single heating demand in the passenger compartment, the vehicle VCU sends LIN message signals to the battery stack three-way valve 620 to connect the 1-3 interface to start the battery stack waste heat recovery condition and the battery three-way valve 610 to connect the 1-2 interface to start the small circulation condition; at the same time, a PWM speed control signal is sent to the heater water pump 200, at this time the battery water pump 300 is not turned on, the passenger compartment HVAC air conditioning fan is turned on, and the battery stack waste heat is only used to heat the passenger compartment.

[0079] like Figure 1 and Figure 8 As shown, the functional action description of mode (6) is: when the ambient temperature is low or extremely low and the battery stack is turned on, there is a dual heating demand for the passenger compartment and the battery. The vehicle VCU sends LIN message signals to the battery stack three-way valve 620 to connect the 1-3 interface to start the battery stack waste heat recovery condition and the battery three-way valve 610 to connect the 1-3 interface to start the large circulation condition; at the same time, it will send PWM speed control signals to the heater water pump 200 and the battery water pump 300. At this time, the HVAC air-conditioning fan of the passenger compartment is turned on, and the battery water pump 300 and the heater water pump 200 work in series, and the waste heat of the battery stack heats the passenger compartment and the battery pack at the same time.

[0080] like Figure 1 and Figure 8 As shown, the functional action description of mode (7) is as follows: under low temperature or high humidity environmental conditions, the passenger compartment needs heating or dehumidification, and the vehicle VCU sends a LIN message signal to the battery three-way valve 610 to connect the 1-3 interface to start the large circulation condition; at the same time, it sends a PWM speed control signal to the heater water pump 200 and the battery water pump 300. At this time, the passenger compartment HVAC air conditioning fan is turned on, and the dehumidification condition requires the air conditioning AC cooling to be turned on again. The battery water pump 300 and the heater water pump 200 work in series, and the battery waste heat is used to heat the passenger compartment.

[0081] like Figure 1 and Figure 8 As shown, the functional action description of mode (8) is as follows: when the ambient temperature is low or extremely low and the battery stack is turned on, there is a dual heating demand for the passenger compartment and the battery pack. The vehicle VCU sends LIN message signals to the battery stack three-way valve 620 to connect the 1-3 interface to start the battery stack waste heat recovery condition, the battery three-way valve 610 to connect the 1-3 interface to start the large circulation condition, and the heater PTC to start the heating task; at the same time, a PWM speed regulation signal is sent to the heater water pump 200 and the battery water pump 300. At this time, the HVAC air conditioning fan of the passenger compartment is turned on, and the battery water pump 300 and the heater water pump 200 work in series. The dual heat sources of the battery stack waste heat and the heater PTC heat the passenger compartment and the battery at the same time.

[0082] like Figure 1and Figure 8 As shown, the functional action description of mode (9) is as follows: under high temperature environment conditions, the battery pack needs to dissipate heat, and the vehicle VCU sends a LIN message signal to the battery three-way valve 610 to connect the 1-2 interface, and at the same time, the evaporator 400 and the electronic expansion valve 800 are turned on; the battery water pump 300 is started through the PWM speed control signal. At this time, the refrigerant in the evaporator 400 and the coolant in the battery pack exchange heat (circulated through the one-way valve 900) to achieve the battery heat dissipation effect.

[0083] According to a second aspect of the present application, an electric vehicle is provided, and the electric vehicle includes the hydrogen fuel cell thermal management integrated module as described above.

[0084] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that any technician familiar with this technical field can still modify the technical solutions recorded in the aforementioned embodiments within the technical scope disclosed in the present application, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be covered by the protection scope of the present application.

Claims

1. A hydrogen fuel cell thermal management integrated module, characterized in that: The hydrogen fuel cell thermal management integrated module includes a heat exchanger, a heater water pump, a battery water pump, an evaporator and a mounting base plate; The heat exchanger includes a first heat exchange side and a second heat exchange side, the first heat exchange side is used to be connected to the battery stack, the outlet of the second heat exchange side is used to be connected to the inlet of the heater assembly, the water inlet of the evaporator is used to be connected to the outlet of the heater assembly, the water outlet of the evaporator is connected to the inlet of the battery water pump, the outlet of the battery water pump is used to be connected to the inlet of the battery pack, the inlet of the heater water pump is used to be connected to the outlet of the battery pack, and the outlet of the heater water pump is connected to the inlet of the second heat exchange side; The mounting substrate includes a front side and a back side opposite to each other in the thickness direction thereof; the heat exchanger, the heater water pump, the battery water pump and the evaporator are all fixed to the front side of the mounting substrate; and the back side of the mounting substrate is used to be fixed to the outer shell of the battery stack.

2. The hydrogen fuel cell thermal management integrated module according to claim 1, characterized in that: The hydrogen fuel cell thermal management integrated module also includes a battery three-way valve and a first three-way connector; The first inlet of the battery three-way valve is used to be connected to the outlet of the heater assembly, the third outlet of the battery three-way valve is connected to the water inlet of the evaporator, the second outlet of the battery three-way valve is connected to the first inlet of the first three-way joint, the second inlet of the first three-way joint is used to be connected to the outlet of the battery pack, and the outlet of the first three-way joint is connected to the inlet of the heater water pump; The battery three-way valve is fixed to the outer wall of the evaporator.

3. The hydrogen fuel cell thermal management integrated module according to claim 2, characterized in that: The hydrogen fuel cell thermal management integrated module also includes a one-way valve, a second three-way connector and a third three-way connector; The inlet of the second three-way joint is connected to the outlet of the first three-way joint, the first outlet of the second three-way joint is connected to the inlet of the warm air water pump, and the second outlet of the second three-way joint is connected to the inlet of the one-way valve. The outlet of the one-way valve is connected to the first inlet of the third three-way joint, the second inlet of the third three-way joint is connected to the third outlet of the battery three-way valve, and the outlet of the third three-way joint is connected to the water inlet of the evaporator.

4. The hydrogen fuel cell thermal management integrated module according to claim 3, characterized in that: The hydrogen fuel cell thermal management integrated module also includes a stack three-way valve and a fourth three-way connector; The first inlet of the stack three-way valve is used to be connected to the outlet of the stack, the third outlet of the stack three-way valve is connected to the inlet of the first heat exchange side, the outlet of the first heat exchange side is connected to the first inlet of the fourth three-way joint, the second inlet of the fourth three-way joint is connected to the second outlet of the stack three-way valve, and the outlet of the fourth three-way joint is used to be connected to the inlet of the stack; The stack three-way valve is fixed to the outer wall of the heat exchanger.

5. The hydrogen fuel cell thermal management integrated module according to claim 4, characterized in that: The outer wall of the evaporator is welded with studs, and the battery three-way valve is fixedly connected to the outer wall of the evaporator through the studs on the evaporator; And / or, studs are welded to the outer wall of the heat exchanger, and the stack three-way valve is fixedly connected to the outer wall of the heat exchanger via the studs on the heat exchanger.

6. The hydrogen fuel cell thermal management integrated module according to claim 4, characterized in that: The pipeline between the third outlet of the battery three-way valve and the water inlet of the evaporator, the pipeline between the second outlet of the battery three-way valve and the first inlet of the first three-way joint, the pipeline between the inlet of the second three-way joint and the outlet of the first three-way joint, the pipeline between the first outlet of the second three-way joint and the inlet of the warm air water pump, the pipeline between the second outlet of the second three-way joint and the first inlet of the third three-way joint, the pipeline between the second inlet of the third three-way joint and the third outlet of the battery three-way valve, the pipeline between the outlet of the third three-way joint and the water inlet of the evaporator, the pipeline between the third outlet of the stack three-way valve and the inlet of the first heat exchange side, the pipeline between the outlet of the first heat exchange side and the first inlet of the fourth three-way joint, and the pipeline between the second inlet of the fourth three-way joint and the second outlet of the stack three-way valve are all rubber tubes; Both ends of the rubber tube are sleeved with elastic clamps; The one-way valve is disposed in a pipeline between the second outlet of the second three-way connector and the first inlet of the third three-way connector.

7. The hydrogen fuel cell thermal management integrated module according to claim 1, characterized in that: The hydrogen fuel cell thermal management integrated module also includes an electronic expansion valve; The evaporator also includes a refrigerant inlet and a refrigerant outlet; The outlet of the electronic expansion valve is fixedly connected to the refrigerant inlet, the inlet of the electronic expansion valve is used to be connected to the outlet of the condenser, and the refrigerant outlet is used to be connected to the inlet of the compressor.

8. The hydrogen fuel cell thermal management integrated module according to any one of claims 1 to 7, characterized in that: The mounting substrate is integrally formed by stamping.

9. The hydrogen fuel cell thermal management integrated module according to any one of claims 1 to 7, characterized in that: The heat exchanger, the heater water pump, the battery water pump, the evaporator and the outer shell of the battery stack are all fixed to the mounting base plate by screw assemblies.

10. An electric vehicle, characterized in that: It comprises a hydrogen fuel cell thermal management integrated module as claimed in any one of claims 1 to 9.

Images