Thermal management device

Abstract

The heat management equipment comprises a compressor core body, a flow channel part, a compressor shell and a first assembly, the compressor shell is provided with a compressor core mounting cavity, and the compressor core body is located in the compressor core mounting cavity; the first wall of the flow channel part and the second wall of the compressor shell are welded and connected close to the periphery of the edge; a gap is formed between the first wall of the flow channel part and the second wall of the compressor shell; the runner part comprises a first air port part, and the compressor shell comprises a second air port part; the compressor shell is provided with a first through hole, the first through hole communicates with the gap, the first through hole is isolated from the first air port part and the second air port part, and the first through hole communicates with the outside. According to the compressor, the compressor shell is provided with the first through hole, the first through hole communicates with the gap, the first through hole is isolated from the first air port part and the second air port part, the first through hole communicates with the outside, high-pressure fluid at the gap is led out from the first through hole, the pressure at the gap is not too large, and therefore the probability of deformation of the flow channel part is reduced.

Description

Technical Field

[0001] This application relates to the field of vehicle thermal management technology, and more particularly to a thermal management device. Background Technology

[0002] In related technologies, the thermal management equipment includes a compressor core, a flow channel, a compressor housing, and a first component. The compressor housing has a compressor core mounting cavity, and the compressor core is located within the compressor core mounting cavity. The first wall of the flow channel is welded to the second wall of the compressor housing around its edge. The flow channel includes a first air inlet located on the first wall of the flow channel. The compressor housing includes a second air inlet located on the second wall of the compressor housing. The first air inlet of the flow channel communicates with the first component, and the first component communicates with the second air inlet of the compressor housing. When the thermal management equipment is running, due to the gap between the unwelded section of the first wall of the flow channel and the second wall of the compressor housing, the pressure of the fluid in the inner cavity of the first air port of the flow channel and the second air port of the compressor housing is greater than the pressure in the gap between the unwelded section of the first wall of the flow channel and the second wall of the compressor housing. Under some special circumstances, the pressure difference between the inside and outside is too large, exceeding the deformation resistance of the first component, causing the first component to deform. This results in leakage at the connection between the first air port of the flow channel and the second air port of the compressor housing. High-pressure fluid continuously flows into the gap between the unwelded section of the first wall of the flow channel and the second wall of the compressor housing. Because the first wall of the flow channel and the second wall of the compressor housing are welded together around the edge, the high-pressure fluid cannot flow out and accumulates in the gap, causing the pressure on the first wall side of the flow channel to gradually increase, making the flow channel prone to deformation. Summary of the Invention

[0003] The purpose of this application is to provide a thermal management device that reduces the degree of deformation.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] A thermal management device is provided, comprising a compressor core, a flow channel, a compressor housing, and a first component. The compressor housing has a compressor core mounting cavity, and the compressor core is located within the compressor core mounting cavity. A first wall of the flow channel is welded to a second wall of the compressor housing around its edge. A gap exists between the first wall of the flow channel and the second wall of the compressor housing. The flow channel includes a first air inlet, and the compressor housing includes a second air inlet. The first air inlet is located on the first wall of the flow channel, and the second air inlet is located on the second wall of the compressor housing. The first air inlet communicates with the first component, and the first component communicates with the second air inlet. The compressor housing has a first through hole, which communicates with the gap and is isolated from the first air inlet and the second air inlet, and communicates with the outside.

[0006] In this application, the compressor housing has a first through hole, which is connected to the gap, isolated from the first air port and the second air port, and connected to the outside. The high-pressure fluid at the gap is led out through the first through hole, so that the pressure at the gap will not be too high, thereby reducing the probability of deformation of the flow channel. Attached Figure Description

[0007] Figure 1 This is a structural diagram of an embodiment of the thermal management device of this application;

[0008] Figure 2 yes Figure 1 A cross-sectional view of the thermal management equipment from one perspective;

[0009] Figure 3 yes Figure 2 Enlarged view of circle Q;

[0010] Figure 4 yes Figure 1 An exploded view of a thermal management device from a single perspective;

[0011] Figure 5 yes Figure 1 An exploded view of the thermal management equipment from another perspective;

[0012] Figure 6 yes Figure 1 A cross-sectional view of the thermal management equipment from one perspective;

[0013] Figure 7 yes Figure 1 Another exploded view of the thermal management equipment. Detailed Implementation

[0014] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0015] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0016] It should be understood that the terms "first," "second," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one; "multiple" indicates two or more. Unless otherwise stated, terms such as "front," "rear," "lower," and / or "upper" are for illustrative purposes only and are not limited to a location or spatial orientation. Terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects.

[0017] The thermal management device of the exemplary embodiment of this application will now be described in detail with reference to the accompanying drawings. Unless otherwise specified, the features of the following embodiments and implementations can complement or combine with each other.

[0018] The vehicle thermal management system is primarily used to manage cooling and heating to meet the overall cooling and heating needs of the vehicle, such as the cooling / heating requirements of the cabin, the cooling requirements of the motor, and the heating / cooling requirements of the battery. A portion of the cooling / heating is supplied through methods such as operating the refrigerant circulation loop, starting the heater, and utilizing the cooling capacity carried by the coolant itself; another portion of the heating is obtained by recovering cooling / heat from other parts of the vehicle. Integrating a portion of the components within the vehicle thermal management system creates a thermal management device. It is understood that the components and their locations within this thermal management device can be adjusted according to actual needs without affecting the functionality of the component.

[0019] According to a specific embodiment of the thermal management device of this application, such as Figures 1 to 3As shown, the thermal management device 1000 includes a compressor core 400, a flow channel section 100, a compressor housing 200, and a first component 300. The compressor housing 200 has a compressor core mounting cavity 250, and the compressor core 400 is located within the compressor core mounting cavity 250. The flow channel section 100 has multiple flow channels, which transport fluids of different temperatures and pressures to different heat exchange components. The compressor housing 200 has a hollow structure, and the compressor core is placed in the hollow part. The compressor core is used to draw in low-temperature, low-pressure refrigerant gas from the suction port, compress it by a piston driven by a motor, and discharge high-temperature, high-pressure refrigerant gas to the exhaust port, providing power for the refrigeration cycle.

[0020] The first wall 110 of the flow channel portion 100 is welded to the second wall 210 of the compressor housing 200 around its perimeter. The first wall 110 of the flow channel portion 100 has a flat surface, and the second wall 210 of the compressor housing 200 also has a flat surface. The connection between the flat surface of the first wall 110 of the flow channel portion 100 and the flat surface of the second wall 210 of the compressor housing 200 improves the reliability of the connection and reduces the risk of the flow channel portion 100 detaching from the compressor housing 200 during operation of the thermal management equipment 1000. Of course, the surface of the first wall 110 of the flow channel portion 100 can also be curved, such as concave or convex, and correspondingly, the surface of the second wall 210 of the compressor housing 200 can also be curved, such as convex or concave, as long as the first wall 110 of the flow channel portion 100 and the second wall 210 of the compressor housing 200 are properly fitted together. This application is not limited to this.

[0021] Due to machining precision issues, the first wall 110 of the flow channel portion 100 and the second wall 210 of the compressor housing 200 are not completely fitted together, and there is a gap 130 between the first wall 110 of the flow channel portion 100 and the second wall 210 of the compressor housing 200; or the first wall 110 of the flow channel portion 100 and the second wall 210 of the compressor housing 200 are not completely fitted together, and there is a gap 130 between the first wall 110 of the flow channel portion 100 and the second wall 210 of the compressor housing 200; the flow channel portion 100 includes a first air port portion 120, and the compressor housing 200 includes a second air port portion 220; the first air port portion 120 is located on the first wall 110 of the flow channel portion 100, and the second air port portion 220 is located on the second wall 210 of the compressor housing 200; the first air port portion 120 is connected to the first component 300, and the first component 300 is connected to the second air port portion 220.

[0022] The first air inlet 120 can be either the air inlet or the air outlet of the flow channel 100. The second air inlet 220 can be either the air outlet or the air intake of the compressor housing 200. When the first air inlet 120 is the air inlet of the flow channel 100, the second air inlet 220 is the air outlet of the compressor housing 200. When the first air inlet 120 is the air outlet of the flow channel 100, the second air inlet 220 is the air intake of the compressor housing 200.

[0023] In some embodiments, the flow channel portion 100 further includes a third air port portion 150, which may be either an air inlet or an air outlet of the flow channel portion 100. When the third air port portion 150 is the air inlet of the flow channel portion 100, the first air port portion 120 is the air outlet of the flow channel portion 100. When the third air port portion 150 is the air outlet of the flow channel portion 100, the first air port portion 120 is the air inlet of the flow channel portion 100.

[0024] The compressor housing 200 also includes a fourth air port 270, which communicates with the third air port 150. The fourth air port 270 can be either an exhaust port or an intake port of the compressor housing 200. When the fourth air port 270 is the exhaust port of the compressor housing 200, the second air port 220 is the intake port of the compressor housing 200. When the fourth air port 270 is the intake port of the compressor housing 200, the second air port 220 is the exhaust port of the compressor housing 200.

[0025] like Figure 4 and Figure 5 As shown, the compressor housing 200 has a first through hole 230, which communicates with the gap 130. The first through hole 230 is isolated from the first air port 120 and the second air port 220, and is connected to the outside. By communicating with the gap 130 through the first through hole 230, when a leak occurs at the connection between the first air port 120 of the flow channel 100 and the second air port 220 of the compressor housing 200, the high-pressure fluid flowing into the gap 130 can be led out to the outside through the first through hole 230, so that the pressure on the first wall 110 side of the flow channel 100 is maintained at a low level, reducing the probability of deformation of the flow channel 100.

[0026] In some embodiments, the compressor housing 200 includes a protrusion 240. The protrusion 240 is located on the second wall 210 of the compressor housing 200 and extends away from the compressor housing 200 along the first wall 110 of the flow channel portion 100. The protrusion 240 has a first through hole 230. The protrusion 240 has a space around it through the first through hole 230, facilitating communication between the first through hole 230 and the outside environment, for example, facilitating communication with external pipelines and providing installation space for external pipelines.

[0027] In some embodiments, the thermal management device 1000 further includes a pressure sensor 420, which is connected to the compressor housing 200. The first inlet 421 of the pressure sensor 420 communicates with the first through-hole 230. The pressure sensor 420 is an electronic device that converts pressure signals into usable electrical signals. It converts pressure changes at the gap 130 into a weak electrical signal that can be transmitted and displayed. Common output signals include a current signal of 4–20 mA or a voltage signal of 0–5 V. The pressure sensor includes a pressure-sensitive element and a signal processing unit, capable of sensing pressure signals and converting them into usable electrical signals according to a certain pattern. The pressure sensor 420 allows for real-time monitoring of pressure changes at the gap 130, timely detection of leaks at the gap 130, and timely maintenance of the thermal management device 1000.

[0028] When the thermal management device 1000 includes a pressure sensor 420, the method for monitoring the gap 130 by the thermal management device 1000 includes the following steps:

[0029] Step 1: Pressure sensor 420 converts the pressure change at gap 130 into a first electrical signal and transmits the first electrical signal to the controller.

[0030] In step one, the controller is electrically connected to the signal output terminal of the pressure sensor 420 to receive the electrical signal transmitted by the pressure sensor 420.

[0031] Step 2: The controller controls the first through hole 230 to connect or disconnect from the outside according to the first electrical signal. When the pressure at the gap 130 is less than the preset pressure, the first through hole 230 is disconnected from the outside; when the pressure at the gap 130 is greater than or equal to the preset pressure, the first through hole 230 is connected to the outside.

[0032] In step two, a valve is provided at the first through hole 230 to connect or disconnect the first through hole 230 from the outside. The controller is electrically connected to the control end of the valve and is used to control the opening and closing of the valve.

[0033] In some embodiments, the thermal management device 1000 further includes a collector 430, which is connected to the compressor housing 200. The second inlet 431 of the collector 430 communicates with the first through hole 230. The collector 430 can be a collection cover or a collection tank. The collector 430 has a certain liquid storage capacity. When a leak occurs at the gap 130, the leaked fluid can be temporarily stored in the collector 430 to prevent the leaked fluid from being exposed to the external environment and causing pollution. If the leaked fluid is a flammable or explosive fluid, it can prevent the leaked fluid from causing safety hazards.

[0034] In some embodiments, the thermal management device 1000 further includes a pressure relief valve 440, which is connected to the compressor housing 200, and its third inlet 441 communicates with the first through hole 230. When the pressure at the gap 130 exceeds the preset pressure of the pressure relief valve 440, the pressure relief valve 440 automatically opens to release pressure, ensuring that the pressure at the gap 130 is below the preset pressure, thereby maintaining the pressure on the first wall 110 side of the flow channel 100 at a low level and reducing the probability of deformation of the flow channel 100. The preset pressure is 2.3 MPa to 2.5 MPa, for example, 2.3 MPa, 2.4 MPa, or 2.5 MPa. Of course, the preset pressure of the pressure relief valve 440 may vary greatly depending on the type of fluid flowing inside the thermal management device 1000, and the preset pressure of the pressure relief valve 440 can be selected according to the actual situation; this application is not limited to this.

[0035] In some embodiments, such as Figure 6 and Figure 7 As shown, the thermal management device 1000 also includes a first pipe 410, which is connected to the compressor housing 200. The first inner cavity 411 of the first pipe 410 communicates with the first through hole 230. The first pipe 410 is used to draw high-pressure fluid from the gap 130. One end of the first pipe 410 is connected to the compressor housing 200, and the other end can be connected to an external container, for example, one end of the first pipe 410 can be connected to a collector 430. After the first pipe 410 draws out the high-pressure fluid from the gap 130, it introduces the high-pressure fluid into the collector 430, ensuring that the pressure at the gap 130 is below a preset pressure, so that the pressure on the first wall 110 side of the flow channel 100 is maintained at a low level, reducing the probability of deformation of the flow channel 100.

[0036] In some embodiments, the through direction of the compressor core mounting cavity 250 of the compressor housing 200 is consistent with the extension direction of the compressor housing 200, and the compressor housing 200 is a single piece. The through direction of the internal flow channel of the flow channel 100 is consistent with the extension direction of the flow channel 100, and the flow channel 100 is a single piece. In some embodiments, the flow channel 100 is extruded and the compressor housing 200 is extruded. After the flow channel 100 is extruded, the extrusion molding of the flow channel 100 and the compressor housing 200 refers to placing a pre-prepared billet into an extrusion cylinder, applying pressure, and extruding the material from the opening of the container. During extrusion, the material is in a state of unequal triaxial compressive stress, and the strain state is axial elongation. The flow channel 100 and the compressor housing 200 can be produced using a hot extrusion process, in which the billet is heated to above the recrystallization temperature. The flow channel 100 is formed by an extrusion molding process. After extrusion molding, the internal flow channels of the flow channel 100 are opened up by machining. The grooves, through holes, and other details of the flow channel 100 are also formed by machining. The flow channel 100 and the compressor housing 200 are separate parts, which eliminates the influence of the flow channel 100 on the forming of the compressor housing 200 during the extrusion process, reduces the degree of deformation of the compressor housing 200, and thus reduces the degree of deformation of the thermal management equipment 1000.

[0037] In some embodiments, the flow channel portion 100 is welded to the compressor housing 200, for example, by laser welding. During the laser welding process, the first wall 110 of the flow channel portion 100 is aligned with the second wall 210 of the compressor housing 200, and the first wall 110 of the flow channel portion 100 and the second wall 210 of the compressor housing 200 are laser welded together around their edges. That is, the surface around the edge where the first wall 110 of the flow channel portion 100 contacts the second wall 210 of the compressor housing 200 is the welding surface, and the surface around the edge where the second wall 210 of the compressor housing 200 contacts the first wall 110 of the flow channel portion 100 is the welding surface.

[0038] In some embodiments, the first air port 120 and the second air port 220 are arranged sequentially along the thickness direction of the flow channel portion 100. This shortens the connection path between the first air port 120 and the second air port 220, reduces the length of the connecting pipe, and reduces the volume of the connecting pipe, thereby reducing the volume of the thermal management device 1000.

[0039] The first component 300 includes a plug 310 and a sealing ring 320; the plug 310 is sealed to the flow channel portion 100; the plug 310 is snapped into the second air port portion 220, with a portion of the plug 310 located within the second air port portion 220; the plug 310 includes a first groove portion 314 and a first through hole portion 315, the first through hole portion 315 communicating with the first air port portion 120 and the second air port portion 220. The first through hole portion 315 is located between the first air port portion 120 and the second air port portion 220, serving to connect the first air port portion 120 and the second air port portion 220.

[0040] The sealing ring 320 is located within the first groove 314, and the sealing ring 320 is sealed to the first groove 314 and the second vent 220. The sealing ring 320 is an annular sealing ring, and the first groove 314 is an annular groove that matches the shape of the sealing ring 320. In this way, when the sealing ring 320 is engaged between the first groove 314 and the second vent 220, the second vent 220 can be sealed all around, ensuring no leakage and improving the sealing performance of the thermal management equipment 1000.

[0041] The sealing ring 320 is made of at least one of the following materials: rubber, polytetrafluoroethylene (PTFE), ethylene propylene diene monomer (EPDM), polyurethane (PU), fluororubber (FKM), silicone gasket (VMQ), and polyetherketone (PEEK). This application is not limited to these materials, as long as the sealing ring 320 is sealed to the first groove portion 314 and the second vent portion 220.

[0042] In some embodiments, the flow channel 100 includes a first stepped portion 140, which is connected to the first air port 120. The first stepped portion 140 has a stepped structure, and the first part 311 of the plug 310 is inserted into the first stepped portion 140 and is sealed to the first stepped portion 140.

[0043] In some embodiments, the compressor housing 200 includes a second stepped portion 260, which is connected to a second air port portion 220. The second stepped portion 260 has a stepped structure, and the second portion 312 of the insert 310 is engaged with the second stepped portion 260. Along the thickness direction of the flow channel portion 100, the first air port portion 120, the first stepped portion 140, the second stepped portion 260, and the second air port portion 220 are arranged sequentially.

[0044] The first step portion 140 may have a single step or multiple steps. The first step portion 140 may be an internal step portion recessed towards the internal flow channel of the flow channel portion 100, or an external step portion protruding towards the compressor housing 200; this application is not limited to these. When the first step portion 140 is an internal step portion recessed towards the internal flow channel of the flow channel portion 100, the first portion 311 of the insert 310 is a step structure protruding towards the internal flow channel of the flow channel portion 100. When the first step portion 140 is an external step portion protruding towards the compressor housing 200, the first portion 311 of the insert 310 is a step structure recessed towards the compressor core mounting cavity 250 of the compressor housing 200. The shape of the first portion 311 of the insert 310 is adapted to the first step portion 140. The structure and fitting relationship of the second step portion 260 are similar to those of the first step portion 140, and will not be described further here.

[0045] In this application, the "connection" between two components can be a direct connection or a connection via a pipeline. The two components may only have a pipeline between them, or they may have a valve or other component in addition to a pipeline. Similarly, the "connection" between two components in this application can be a direct connection or a connection via a pipeline. The two components may only have a pipeline connection, or they may have a valve or other component in addition to a pipeline connection.

[0046] The above description is merely a preferred embodiment of this application and is not intended to limit this application in any way. Although this application has disclosed the preferred embodiment as above, it is not intended to limit this application. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of this application. Any simple modifications, equivalent changes, and alterations made to the above technical solution based on the technical essence of this application without departing from the content of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A thermal management device, characterized in that, The compressor includes a compressor core (400), a flow channel (100), a compressor housing (200), and a first assembly (300). The compressor housing (200) has a compressor core mounting cavity (250), and the compressor core (400) is located within the compressor core mounting cavity (250). The first wall (110) of the flow channel (100) is welded to the second wall (210) of the compressor housing (200) around its edge. (210) have a gap (130) between them; the flow channel (100) includes a first air port (120), and the compressor housing (200) includes a second air port (220); the first air port (120) is located on the first wall (110) of the flow channel (100), and the second air port (220) is located on the second wall (210) of the compressor housing (200); the first air port (120) communicates with the first component (300), and the first component (300) communicates with the second air port (220); The compressor housing (200) has a first through hole (230), which communicates with the gap (130), is isolated from the first air inlet (120) and the second air inlet (220), and is connected to the outside.

2. The thermal management device as described in claim 1, characterized in that, The compressor housing (200) includes a protrusion (240); the protrusion (240) is located on the second wall (210) of the compressor housing (200), the protrusion (240) extends away from the compressor housing (200) along the first wall (110) of the flow channel portion (100), and the protrusion (240) has a first through hole (230).

3. The thermal management device as described in claim 1, characterized in that, It also includes a pressure sensor (420), which is connected to the compressor housing (200), and the first inlet (421) of the pressure sensor (420) is connected to the first through hole (230).

4. The thermal management device as described in claim 1, characterized in that, It also includes a collector (430) connected to the compressor housing (200), and the second inlet (431) of the collector (430) is connected to the first through hole (230).

5. The thermal management device as described in claim 1, characterized in that, It also includes a pressure relief valve (440), which is connected to the compressor housing (200), and the third inlet (441) of the pressure relief valve (440) is connected to the first through hole (230).

6. The thermal management device according to any one of claims 1 to 5, characterized in that, It also includes a first tube (410), which is connected to the compressor housing (200), and the first inner cavity (411) of the first tube (410) is connected to the first through hole (230).

7. The thermal management device according to any one of claims 1 to 5, characterized in that, The through direction of the compressor core mounting cavity (250) of the compressor housing (200) is consistent with the extension direction of the compressor housing (200), and the compressor housing (200) is a single piece.

8. The thermal management device according to any one of claims 1 to 5, characterized in that, Along the thickness direction of the flow channel portion (100), the first air port portion (120) and the second air port portion (220) are arranged sequentially; The first component (300) includes a plug (310) and a sealing ring (320); the plug (310) is sealed to the flow channel (100); the plug (310) is snapped into the second air port (220), and a portion of the plug (310) is located inside the second air port (220); the plug (310) includes a first groove (314) and a first through hole (315), the first through hole (315) communicating with the first air port (120) and the second air port (220); The sealing ring (320) is located inside the first groove (314), and the sealing ring (320) is sealed to the first groove (314) and the second air port (220).

9. The thermal management device as described in claim 8, characterized in that, The flow channel (100) includes a first step (140), which is connected to the first air port (120). The first step (140) has a stepped structure. The first part (311) of the plug (310) is inserted into the first step (140) and is sealed to the first step (140).

10. The thermal management device as described in claim 8, characterized in that, The compressor housing (200) includes a second stepped portion (260), which is connected to the second air port portion (220). The second stepped portion (260) has a stepped structure, and the second part (312) of the plug-in (310) is engaged with the second stepped portion (260).

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