Integrated assembly

Abstract

The integrated assembly comprises a flow channel unit and a fluid management unit which are fixedly connected or connected in a limiting mode, the fluid management unit comprises a first heat exchanger and a second heat exchanger, a flow channel comprises a confluence flow channel, the confluence flow channel is provided with a port A, a port B and a port C, and the flow channel unit is provided with a confluence groove used for forming the confluence flow channel. The confluence groove comprises a first groove part, a second groove part and a third groove part, one ends of the first groove part, the second groove part and the third groove part are mutually communicated, the port A, the port B and the port C are located at the other ends of the first groove part, the second groove part and the third groove part respectively, the port A communicates with an outlet of the first heat exchanger, the port B communicates with an outlet of the second heat exchanger, and the port C is an outlet; the end, close to the confluence area, of at least one of the first groove part and the second groove part is provided with a hole shrinkage part, and / or the third groove part is provided with a liquid accumulation part below the confluence area, so that refrigerants and refrigerant oil flowing out of the first heat exchanger or the second heat exchanger can flow back to the compressor in a concentrated mode, and oil shortage faults of the compressor are reduced.

Description

Technical Field

[0001] The present application relates to the field of fluid control technology, and in particular to an integrated component. Background Art

[0002] During the operation of the thermal management system, refrigerant and refrigeration oil flow in the flow channel. When the thermal management system is running in different working modes, different heat exchange components are started. If the refrigeration oil enters the currently non-working heat exchange component, it will be detrimental to the stable operation of the system. How to reduce or avoid the refrigeration oil from entering the currently non-working heat exchange component is a technical problem that needs to be solved by technicians in this field. Utility Model Content

[0003] In order to solve the above technical problems, this application provides the following technical solutions:

[0004] An integrated component comprises a flow channel unit and a fluid management unit, wherein the flow channel unit is fixedly connected or position-limitedly connected to the fluid management unit, the fluid management unit comprises a first heat exchanger and a second heat exchanger, and the channels of the first heat exchanger and the second heat exchanger are in communication with the flow channel of the flow channel unit;

[0005] The flow channel unit has a flow channel groove for forming the flow channel, the flow channel includes a converging flow channel, the converging flow channel has an A port, a B port, and a C port, the flow channel groove includes a converging groove for forming the converging flow channel, the converging groove includes a first groove portion, a second groove portion, and a third groove portion, one end of the first groove portion, the second groove portion, and the third groove portion are connected to each other, the A port, the B port, and the C port are respectively located at the other end of the first groove portion, the second groove portion, and the third groove portion, the A port is connected to the outlet of the first heat exchanger, the B port is connected to the outlet of the second heat exchanger, and the medium in the converging groove flows out from the C port;

[0006] At least one of the first groove portion and the second groove portion is provided with a constricted portion at one end close to the confluence area, and / or the third groove portion is provided with a liquid accumulation portion below the confluence area.

[0007] In the present application, since at least one of the first groove portion and the second groove portion is provided with a neck portion near one end of the confluence area, and / or the third groove portion is provided with a liquid accumulation portion below the confluence area, the refrigerant and refrigeration oil flowing out of the first heat exchanger or the second heat exchanger can flow back to the compressor in a relatively concentrated manner, thereby enabling the compressor to have a better lubrication effect, reducing oil shortage failures of the compressor, and facilitating stable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 A three-dimensional diagram of an embodiment of an integrated component provided by the present application;

[0009] Figure 2 for Figure 1 A three-dimensional view of one side of the mid-channel plate;

[0010] Figure 3 for Figure 2 A three-dimensional view of the reverse side of the middle channel plate;

[0011] Figure 4 for Figure 1 A plan view of one side of the mid-channel plate;

[0012] Figure 5 is a three-dimensional view of one side of another embodiment of the flow channel plate;

[0013] The following are the descriptions of the reference numerals:

[0014] 100 flow channel units;

[0015] 1 flow channel plate, 11 flow channel groove, 111 confluence groove, 111a first groove portion, 111b second groove portion, 111c third groove portion, X constricted portion, X1 first constricted portion, X2 second constricted portion, Y effusion portion, 112 first groove, 113 second groove, 114 third groove, 115 fourth groove, 12 interface portion, 121 first interface portion, 122 second interface portion, 123 third interface portion, 124 fourth interface portion, 125 fifth interface portion, 126 sixth interface portion, 127 seventh interface portion, 128 eighth interface portion, 13 accommodating chamber portion, 131 first valve accommodating chamber portion, 132 second valve accommodating chamber portion, 133 first sensor accommodating chamber portion, 134 second sensor accommodating chamber portion;

[0016] 200 fluid management units;

[0017] 21 heat exchanger, 211 first heat exchanger, 212 second heat exchanger, 213 third heat exchanger, 22 compressor, 23 valve component, 231 first valve component, 232 second valve component, 24 sensor, 241 first sensor, 242 second sensor, 242 third sensor, 243 fourth sensor. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution of the present application, the flow channel element and thermal management system provided by the present application are further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] The present application provides an integrated component that can be used in a thermal management system, such as a vehicle thermal management system.

[0020] like Figure 1As shown, the integrated component includes a flow channel unit 100 and a fluid management unit 200. The fluid management unit 200 is fixedly connected or position-limitedly connected to the flow channel unit 100. The fluid management unit 200 has a channel for circulating medium or a cavity for storing circulating medium. The channel or cavity of the fluid management unit 200 is connected to the flow channel of the flow channel unit 100.

[0021] The fluid management unit 200 includes one or more of a heat exchanger 21, a valve 23, and a sensor 24, which can be configured according to actual needs. The valve 23 can connect, disconnect, or throttle the connecting flow channel. The sensor 24 is used to detect the temperature and / or pressure of the fluid flowing in the flow channel. In this embodiment, the fluid management unit 200 includes three heat exchangers 21, wherein the first heat exchanger 211 is a microchannel heat exchanger, and the second heat exchanger 212 and the third heat exchanger 213 are plate heat exchangers. The appropriate type of heat exchanger can be selected according to actual needs. The first heat exchanger 211 and the second heat exchanger 212 can be used as an evaporator, and the third heat exchanger 213 can be used as a condenser. In this embodiment, the fluid management unit 200 includes two valves 23, wherein the outlet of the first valve 231 is connected to the inlet of the first heat exchanger 211 through the flow channel, the outlet of the second valve 232 is connected to the inlet of the second heat exchanger 212 through the flow channel, and the inlet of the first valve 231 and the inlet of the second valve 232 are connected to the outlet of the third heat exchanger 213 through the flow channel. In this embodiment, the fluid management unit 200 includes four sensors 24, wherein the first sensor 241, the second sensor 242, the third sensor 243, and the fourth sensor 244 respectively detect the temperature and / or pressure parameters of the medium flowing in the corresponding flow channel, and feed back to the control unit of the thermal management system to manage the operation of the thermal management, including a high-pressure side sensor and a low-pressure side sensor. The figure shows the gravity direction of the integrated component in the working state, that is, the base is arranged vertically along the gravity direction.

[0022] like Figure 2As shown, the flow channel unit 100 includes a flow channel plate 1 and a cover plate (not shown in the figure). The flow channel plate 1 has a flow channel groove 11 for forming a flow channel. In this embodiment, the flow channel groove 11 is located on one side of the flow channel plate 1, and is recessed from the side of the flow channel plate 1 body to the opposite side of the flow channel plate 1 body. The shape of the cover plate corresponds to the flow channel groove 11, and the cover plate can cover at least part of the opening of the flow channel groove 11 to form a flow channel. In this embodiment, the flow channel includes five flow channels that are not connected to each other: a converging flow channel, a first flow channel, a second flow channel, a third flow channel and a fourth flow channel, corresponding to five flow channel grooves 11: a converging groove 111, a first groove 112, a second groove 113, a third groove 114 and a fourth groove 115, and the corresponding cover plate includes five corresponding split structures. The flow channel plate 1 is welded to the cover plate, which can be laser welding or stir friction welding. In other embodiments, the flow channel unit 100 can be an integrally formed structure, and the flow channel of the flow channel unit 100 can be formed by machining or mold casting. In other embodiments, the cover plate may also be an integral structure, where an integral plate can cover a plurality of flow channel grooves 11, or grooves corresponding to the flow channel grooves 11 of the flow channel plate 1 are formed on the cover plate, and the grooves are assembled to form the flow channel.

[0023] like Figure 2As shown, the flow channel includes a flow channel port, which can be connected to the channel or cavity of the fluid management unit 200 or to the thermal management device outside the integrated component or as a measuring port of the sensor 24. In this embodiment, the flow channel port runs from one side of the flow channel plate 1 body to the opposite side of the flow channel plate 1 body. In this embodiment, the converging flow channel includes port A, port B, port C, port P, and port Q, wherein port A is connected to the outlet of the first heat exchanger 211, port B is connected to the outlet of the second heat exchanger 212, port C is connected to the inlet of the compressor 22 outside the integrated component, port P is used as the measuring port of the third sensor 243, and port Q is used as the measuring port of the fourth sensor 244. The first flow channel includes port D, port E, and port F, wherein port D is connected to the outlet of the compressor 22, port E is used as the measuring port of the third sensor 243, and port F is connected to the inlet of the third heat exchanger 213. The second flow channel includes a G port, an H port, an I port, and a J port, wherein the G port is connected to the inlet of the first valve component 231, the H port is connected to the inlet of the second valve component 232, the I port is used as a measuring port of the second sensor 242, and the J port is connected to the outlet of the third heat exchanger 213. The third flow channel includes a K port and an L port, wherein the K port is connected to the inlet of the first heat exchanger 211, the L port is connected to the outlet of the first valve component 231, the outlet of the first valve component 231 is connected to the inlet of the first heat exchanger 211 through the third flow channel, and the first valve component 231 connects, disconnects, or throttles the second flow channel and the third flow channel. The fourth flow channel includes an M port and an N port, wherein the M port is connected to the outlet of the second valve component 232, the N port is connected to the inlet of the second heat exchanger 212, the outlet of the second valve component 232 is connected to the inlet of the second heat exchanger 212 through the fourth flow channel, and the second valve component 232 connects, disconnects, or throttles the second flow channel and the fourth flow channel.

[0024] like Figure 3As shown, the flow channel plate 1 has an interface portion 12, which can be fixedly connected or limitedly connected to the fluid management unit 200 or fixedly connected through an external pipeline, or the interface portion 12 can be connected to a thermal management device outside the integrated component, the interface portion 12 connected to the fluid management unit 200 is an internal interface portion, and the interface portion 12 connected to the thermal management device outside the integrated component is an external interface portion. In this embodiment, the interface portion 12 protrudes from the back side of the flow channel plate 1 body. The internal interface portion includes a first interface portion 121, a second interface portion 122, a fifth interface portion 125, a sixth interface portion 126, a seventh interface portion 127, and an eighth interface portion 128. Among them, the first interface portion 121 and the fifth interface portion 125 are connected to the first heat exchanger 211, the interface of the first interface portion 121 connects the outlet of the first heat exchanger 211 and the A port of the converging flow channel, and the interface of the fifth interface portion 125 connects the inlet of the first heat exchanger 211 and the L port of the third flow channel. The second interface part 122 and the sixth interface part 126 are connected to the second heat exchanger 212. The interface of the second interface part 122 connects the outlet of the second heat exchanger 212 and the B port of the converging channel. The interface of the sixth interface part 126 connects the inlet of the second heat exchanger 212 and the N port of the fourth channel. The seventh interface part 127 and the eighth interface part 128 are connected to the third heat exchanger 213. The interface of the seventh interface part 127 connects the inlet of the third heat exchanger 213 and the F port of the first channel. The interface of the eighth interface part 12 connects the outlet of the third heat exchanger 213 and the J port of the second channel. The external interface part includes the third interface part 123 and the fourth interface part 124. The integrated component is used for a thermal management system. The thermal management system includes a compressor. The inlet of the compressor is connected to the C port of the converging groove through the interface of the third interface part 123. The outlet of the compressor is connected to the first channel through the interface of the fourth interface part 124.

[0025] like Figure 3 As shown, the flow channel plate 1 has a housing cavity 13, and the housing cavity 13 can accommodate a valve member 23 or a sensor 24. In this embodiment, the housing cavity 13 protrudes from one side of the flow channel plate 1 body, and the housing cavity 13 and the interface portion 12 are located on the same side of the flow channel plate 1. The flow channel plate 1 has six housing cavities 13, two of which are valve member housing cavities, and four are sensor housing cavities, wherein the first valve member 231 is at least partially accommodated in the first housing cavity 131, the second valve member 232 is at least partially accommodated in the second housing cavity 132, the first sensor 241 is at least partially accommodated in the third housing cavity 13, the second sensor 242 is at least partially accommodated in the fourth housing cavity 13, the third sensor 243 is at least partially accommodated in the fifth housing cavity 13, and the fourth sensor 244 is at least partially accommodated in the sixth housing cavity 13.

[0026] like Figure 4As shown, the confluence groove 111 for forming the confluence flow channel includes a first groove portion 111a, a second groove portion 111b, and a third groove portion 111c. One ends of the first groove portion 111a, the second groove portion 111b, and the third groove portion 111c are connected to each other to form a confluence area. Port A connected to the outlet of the first heat exchanger 211 is located at the other end of the first groove portion 111a, and port B connected to the outlet of the second heat exchanger 212 is located at the other end of the second groove portion 111b. Port C serves as an outlet. During operation, the medium in the confluence flow channel flows out from port C. Port C can be connected to the compressor inlet of the thermal management device.

[0027] The integrated component has multiple working modes. In one working mode, the first heat exchanger 211 works and the second heat exchanger 212 does not work. In another working mode, the first heat exchanger 211 does not work and the second heat exchanger 212 works. In another working mode, both the first heat exchanger 211 and the second heat exchanger 212 work. The refrigerant and refrigeration oil flowing out of the working first heat exchanger 211 and the second heat exchanger 212 flow back to the compressor 22 through the converging flow channel.

[0028] At least one of the first groove 111a and the second groove 111b is provided with a constriction X at one end close to the confluence area, and / or the third groove 111c is provided with a liquid accumulation part Y below the confluence area. In this embodiment, the first groove 111a is provided with a constriction X at one end close to the confluence area, and the flow area at the constriction X of the first groove 111a is smaller than the flow area at other positions of the second groove 111b. In this way, when the second heat exchanger 212 is working and the first heat exchanger 211 is not working, the refrigerant and refrigeration oil flowing out of the second heat exchanger 212 are not easy to enter the non-working first heat exchanger 211 through the first groove 111a, and most of them flow back to the compressor 22 through the third groove 111c, thereby ensuring that the compressor 22 has a better lubrication effect and reducing the oil shortage failure of the compressor 22. In the present application example, a neck X is also provided at one end of the second groove portion 111b close to the confluence area, and the flow area at the neck X of the third groove portion 111c is smaller than the flow area at other positions of the third groove portion 111c. In this way, when the first heat exchanger 211 is working and the second heat exchanger 212 is not working, the refrigerant and refrigeration oil flowing out of the first heat exchanger 211 are not easy to enter the non-working second heat exchanger 212 through the second groove portion 111b, and most of them flow back to the compressor 22 through the third groove portion 111c, thereby ensuring that the compressor 22 has a better lubrication effect and reducing the oil shortage failure of the compressor 22. In this embodiment, the third groove portion 111c is provided with a liquid accumulation portion Y below the confluence area, so that the refrigerant and refrigeration oil flowing out of the first heat exchanger 211 or the second heat exchanger 212 can be temporarily accumulated in the liquid accumulation portion Y after entering the confluence area, and are not easily rushed into the second groove portion 111b or the first groove portion 111a under the action of fluid inertia and then enter the non-working second heat exchanger 212 or the first heat exchanger 211. Most of them flow back to the compressor through the third groove portion 111c, ensuring that the compressor 22 has a better lubrication effect and reducing the oil shortage failure of the compressor 22.

[0029] like Figure 4As shown, the necking portion X can be formed by the side wall of the confluence groove 111 protruding into the groove. In this way, while forming the necking portion X, a curved flow channel can also be formed, which can further increase the resistance of the refrigerant and the refrigeration oil entering the non-operating heat exchanger. Specifically, the corresponding positions of the two opposite side walls can both protrude into the groove, or one of the two opposite side walls can protrude into the groove. In this embodiment, the two opposite side walls of the first groove portion 111a protrude into the groove in opposite directions at one end close to the confluence area, so that the necking portion X is formed at one end of the first groove portion 111a close to the confluence area. The side walls on both sides of the second groove portion 111b protrude into the groove in opposite directions near one end of the confluence area, thereby forming a necking area at one end of the second groove portion 111b near the confluence area, wherein the side walls of the second groove portion 111b connected to the side walls of the third groove portion 111c protrude into the groove by a large distance (the position circled in red in the figure), thereby forming a curved flow channel with a large curvature at this position, making it difficult for the refrigerant and refrigeration oil flowing from the first groove portion 111a to the confluence area to bypass the curved flow channel and enter the second groove portion 111b.

[0030] like Figure 4 As shown, one end of the first groove portion 111a near the confluence area is higher than one end of the second groove portion 111b near the confluence area, so that the refrigerant and refrigeration oil flowing out of the second groove portion 111b are not easy to flow upward through the first groove portion 111a into the first heat exchanger 211 that is not currently working. The liquid accumulation portion is lower than one end of the first groove portion near the confluence area. In this way, the refrigerant and refrigeration oil flowing out of the first groove portion 111a are more likely to flow into the liquid accumulation portion Y of the third groove portion 111c, and are less likely to flow into the second heat exchanger 212 that is not currently working through the second groove portion 111b. In this embodiment, most of the first groove portion 111a and the third groove portion 111c are higher than the second groove portion 111b, the first groove portion 111a and the third groove portion 111c extend generally horizontally, and the second groove portion 111b extends generally vertically.

[0031] like Figure 4 As shown, the lower side wall of the third groove 111c is gently curved to form a liquid accumulation portion. In this way, the liquid accumulated in the liquid accumulation portion in the previous stage can be easily washed to the C port by the fluid flowing in the next stage, thereby preventing the liquid from being deposited in the liquid accumulation portion Y for a long time.

[0032] like Figure 4 As shown, the end of the liquid accumulation part close to the first groove part 111a is higher than the lowest position of the liquid accumulation part. In this way, the liquid accumulated in the liquid accumulation part is not easy to overflow from the end of the liquid accumulation part close to the second groove part 111b into the second groove part 111b.

[0033] like Figure 4As shown, in this embodiment, the tangent line of one end of the liquid accumulation part Y close to the first groove part 111a is parallel to the tangent line of the lower side wall of the first groove part 111a close to the confluence area. The lower blue line in the figure is the tangent line of one end of the liquid accumulation part Y close to the first groove part 111a, and the upper blue line is the tangent line of the lower side wall of the first groove part 111a close to the confluence area. With this design, the refrigerant and refrigeration oil flowing out of the first groove part 111a can flow into the liquid accumulation part Y along the side wall of the liquid accumulation part Y, and then flow to the compressor 22, and it is not easy to collide with the liquid accumulation part or the liquid in the liquid accumulation part to cause liquid splashing or return to enter the second groove part 111b.

[0034] like Figure 5 As shown, this embodiment is Figure 4 The main difference of the embodiment shown is that in this embodiment, the side wall of the second groove portion 111b connected to the side wall of the third groove portion 111c protrudes into the groove by a smaller distance (the position circled in red in the figure), thereby forming a curved flow channel with a smaller curvature at this position. In this embodiment, the second groove portion 111b has no necking, and the flow area at each position is roughly the same. The first groove portion 111a and the second groove portion 111b are smoother as a whole. In this embodiment, the refrigerant and refrigeration oil flowing out of the second evaporator 212 can flow back to the compressor more smoothly and with low resistance.

[0035] The above specific examples are used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. An integrated component, characterized in that: It comprises a flow channel unit and a fluid management unit, wherein the flow channel unit is fixedly connected or position-limitedly connected to the fluid management unit, and the fluid management unit comprises a first heat exchanger and a second heat exchanger, and the channels of the first heat exchanger and the second heat exchanger are in communication with the flow channel of the flow channel unit; The flow channel unit has a flow channel groove for forming the flow channel, the flow channel includes a converging flow channel, the converging flow channel has an A port, a B port, and a C port, the flow channel groove includes a converging groove for forming the converging flow channel, the converging groove includes a first groove portion, a second groove portion, and a third groove portion, one end of the first groove portion, the second groove portion, and the third groove portion are interconnected to form a converging area, the A port, the B port, and the C port are respectively located at the other end of the first groove portion, the second groove portion, and the third groove portion, the A port is connected to the outlet of the first heat exchanger, the B port is connected to the outlet of the second heat exchanger, and the medium in the converging groove flows out from the C port; At least one of the first groove portion and the second groove portion is provided with a constricted portion at one end close to the confluence area, and / or the third groove portion is provided with a liquid accumulation portion below the confluence area.

2. The integrated assembly according to claim 1, characterized in that: The side wall of the confluence groove protrudes into the groove to form the necking portion.

3. The integrated assembly according to claim 1, characterized in that: One end of the first groove portion close to the confluence area is higher than one end of the second groove portion close to the confluence area, and the liquid accumulation portion is lower than one end of the first groove portion close to the confluence area.

4. The integrated assembly according to claim 3, characterized in that: The lower side wall of the third groove portion is gently curved to form the liquid accumulation portion.

5. The integrated assembly according to claim 4, characterized in that: One end of the liquid accumulation portion close to the first groove portion is higher than the lowest position of the liquid accumulation portion.

6. The integrated assembly according to claim 5, characterized in that: A tangent line of an end of a side wall of the liquid accumulation portion close to the first groove portion is parallel to a tangent line of an end of a lower side wall of the first groove portion close to the confluence region.

7. The integrated assembly according to any one of claims 1 to 6, characterized in that: The flow channel unit includes a flow channel plate and a cover plate, the flow channel plate has the flow channel groove for forming the flow channel, the cover plate can cover at least part of the opening of the flow channel groove to construct the flow channel, the flow channel plate has an interface portion, the interface portion is fixedly connected or limit-connected to the fluid management unit or fixedly connected through an external pipeline, the interface portion includes a first interface portion, a second interface portion, and a third interface portion, the inlet of the first heat exchanger is connected to the A port of the confluence groove through the first interface portion, and the outlet of the second heat exchanger is connected to the B port of the confluence groove through the interface of the second interface portion, the integrated component is used for a thermal management system, the thermal management system includes a compressor, and the inlet of the compressor is connected to the C port of the confluence groove through the interface of the third interface portion.

8. The integrated assembly according to claim 7, characterized in that: The flow channel also includes a first flow channel, a second flow channel, a third flow channel and a fourth flow channel, the fluid management unit also includes a third heat exchanger, and the interface part also includes a fourth interface part, a fifth interface part, a sixth interface part, a seventh interface part and an eighth interface part. The outlet of the compressor is connected to the first flow channel through the interface of the fourth interface part, the inlet of the first heat exchanger is connected to the third flow channel through the interface of the fifth interface part, the inlet of the second heat exchanger is connected to the fourth flow channel through the interface of the sixth interface part, the inlet of the third heat exchanger is connected to the first flow channel through the interface of the seventh interface part, and the outlet of the third heat exchanger is connected to the second flow channel through the interface of the eighth interface part.

9. The integrated assembly according to claim 8, characterized in that: The fluid management unit also includes a first valve component and a second valve component. The first valve component can connect, disconnect or throttle the second flow channel and the third flow channel. The second valve component can connect, disconnect or throttle the second flow channel and the fourth flow channel. The outlet of the first valve component is connected to the inlet of the first heat exchanger through the third flow channel, and the outlet of the second valve component is connected to the inlet of the second heat exchanger through the fourth flow channel. The flow channel plate has a first accommodating cavity portion and a second accommodating cavity portion. The first valve component is at least partially located in the cavity of the first accommodating cavity portion, and the second valve component is at least partially located in the cavity of the second accommodating cavity portion.

10. The integrated assembly according to claim 9, characterized in that The fluid management unit comprises a sensor for detecting the temperature and / or pressure of the fluid flowing in the flow channel. The flow channel plate has a sensor accommodating cavity, and the sensor is at least partially located in the sensor accommodating cavity.

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