CN115703325A - Fluid control assembly and thermal management system - Google Patents

Abstract

A fluid control assembly and a thermal management system are provided, the fluid control assembly comprises a first throttle valve element, a liquid storage element, a heat exchange element and a first valve block, the first throttle valve element, the liquid storage element and the heat exchange element are respectively fixedly connected or in limited connection with the first valve block, the fluid control assembly is provided with a first channel, a second channel and a third channel, the heat exchange element is provided with a first flow channel, the liquid storage element is provided with at least part of a liquid storage cavity, the first flow channel is communicated with the second channel and the third channel, the liquid storage cavity is communicated with the first channel, the first throttle valve element is communicated with and not communicated with the first channel and the second channel, the fluid control assembly comprises a plurality of elements, and pipelines among the elements are replaced by the channels to be communicated in a butt joint mode, when the fluid control assembly is applied to the thermal management system, pipeline connection is reduced, and occupied space of the system is reduced.

Description

Fluid control assembly and thermal management system

Technical Field

The present application relates to a fluid control assembly and a thermal management system.

Background

The related art thermal management system includes a reservoir unit, a throttle unit, and a heat exchange unit, wherein the reservoir unit may be a high-pressure reservoir unit disposed behind a condenser, and the heat exchange unit may be a heat exchange unit involving heat exchange between two working fluids. The elements in the thermal management system are usually connected through pipelines, so that the occupied space of the system is large, and how to carry out integrated design on the elements in the thermal management system, so as to reduce the pipeline connection, and reduce the occupied space of the system is a technical problem to be improved.

Disclosure of Invention

It is an object of the present application to provide a fluid control assembly and thermal management system that facilitates reducing the system footprint

In order to achieve the purpose, the following technical scheme is adopted in the application:

a fluid control assembly comprising a first throttle element, a reservoir element and a heat exchange element, the fluid control assembly further comprising a first valve block, at least a portion of the first throttle element being located in a first mounting cavity of the first valve block such that the first throttle element is fixedly or captively connected to the first valve block, the reservoir element and the heat exchange element being fixedly or captively connected to the first valve block, respectively, the fluid control assembly having passages including a first passage, a second passage and a third passage, at least a portion of the first passage, at least a portion of the second passage and at least a portion of the third passage being located in the first valve block, the heat exchange element having a first flow passage communicating the second passage and the third passage, the fluid control assembly having a reservoir, at least a portion of the reservoir element being located in the reservoir element, the reservoir element being in communication with the first passage, the first throttle element being capable of communicating and not communicating with the first passage and the second passage.

The utility model provides a heat management system, heat management system includes compressor, first condenser, second condenser, evaporimeter, fluid control assembly respectively with the compressor first condenser the second condenser the evaporimeter butt joint intercommunication, fluid control assembly is foretell fluid control assembly.

The fluid control assembly comprises a first throttle valve element, a liquid storage element, a heat exchange element and a first valve block, wherein the first throttle valve element, the liquid storage element and the heat exchange element are fixedly connected or in limited connection with the first valve block respectively, the fluid control assembly is provided with a first channel, a second channel and a third channel, the heat exchange element is provided with a first flow channel, the liquid storage element is provided with at least part of a liquid storage cavity, the first flow channel is communicated with the second channel and the third channel, the liquid storage cavity is communicated with the first channel, the first throttle valve element is communicated with and not communicated with the first channel and the second channel, the fluid control assembly comprises a plurality of elements and replaces pipelines among the elements to be in butt communication through the channels, and therefore when the fluid control assembly is applied to the heat management system, pipeline connection is reduced, and occupied space of the system is reduced.

Drawings

FIG. 1 is a perspective view of one embodiment of a fluid control assembly;

FIG. 2 is a schematic diagram of an exploded view of the fluid control assembly of FIG. 1;

FIG. 3 is a perspective view of the first valve block of FIG. 1;

FIG. 4 is a perspective view of the second valve block of FIG. 1;

FIG. 5 is a schematic perspective view of the reservoir unit of FIG. 1;

FIG. 6 is a schematic cross-sectional view of the reservoir unit in FIG. 5;

FIG. 7 is a schematic view of yet another perspective of the fluid control assembly of FIG. 1;

FIG. 8 is a schematic diagram of a system configuration in which a fluid control assembly is used in one embodiment of a thermal management system;

FIG. 9 is a system diagram of a first mode of operation of the thermal management system of FIG. 8

Fig. 10 is a system diagram of a second mode of operation of the thermal management system of fig. 8.

Detailed Description

The present application is further described with reference to the following figures and specific examples:

the fluid control assembly may be applied to a thermal management system, which may be a vehicle thermal management system, such as a new energy vehicle thermal management system. Referring to fig. 1 and 2, the fluid control assembly 100 includes a first valve block 1, a first throttle element 21, a heat exchange element 3, and a reservoir element 4, wherein the first throttle element 21 is fixedly or limitedly connected to the first valve block 1, and a sealing arrangement may be provided between the first throttle element 21 and the first valve block 1, which is beneficial to reduce or prevent the working fluid from leaking out of an assembly gap between the first throttle element 21 and the first valve block 1. The heat exchange element 3 can be a heat exchange element 3 related to heat exchange between two working fluids (such as refrigerant and cooling liquid), the heat exchange element 3 is fixedly connected or in limited connection with the first valve block 1, and a sealing arrangement can be arranged between the heat exchange element 3 and the first valve block 1, so that the leakage of the working fluids from an assembly gap between the heat exchange element 3 and the first valve block 1 is reduced or prevented. In this embodiment, the heat exchange element 3 and the first valve block 1 are fixed and sealed by welding, the heat exchange element 3 includes a plurality of stacked plates, the heat exchange element 3 is located on one side of the first valve block 1 along the stacking direction of the plates, a part of the first throttle valve element 21 is located on the other side of the first valve block 1, the two sides are different sides of the first valve block 1, the two sides can be opposite sides of the first valve block 1, and the heat exchange element 3 and a part of the first throttle valve element 21 are located on different sides of the first valve block 1, which is beneficial to the rational spatial layout of the fluid control assembly 100 and makes the structure compact. The liquid storage component 4 is fixedly connected or connected in a limiting manner with the first valve block 1, in this embodiment, the liquid storage component 4 includes a bracket 41, the liquid storage component 4 is fixedly connected or connected in a limiting manner with the first valve block 1 through the bracket 41, specifically, the bracket 41 is located at the periphery of the tank body of the liquid storage component 4 and is fastened at the periphery of the tank body through screws, the bracket 41 is fixedly connected with the first valve block 1 through screws, and the liquid storage component 4 and a part of the first throttle valve component 21 are located at the same side of the first valve block 1.

The heat exchange element 3 has a first flow passage and a second flow passage which are not communicated with each other, and the working fluid (e.g., refrigerant) in the first flow passage and the working fluid (e.g., coolant) in the second flow passage can exchange heat in the heat exchange element 3. The fluid control assembly 100 has a plurality of channels, and a first flow passage of the heat exchange element 3 may be in communication with two or more of the channels, and a second flow passage of the heat exchange element 3 may be in communication with channels in other assemblies in the thermal management system, such as in a battery cooling assembly. The first throttle element 21 can communicate or not communicate two or more of the passages and can throttle the working fluid flowing therethrough. The fluid management assembly 100 has a reservoir, at least a portion of which is located within the reservoir member 4, the reservoir being in communication with at least one of the channels. In this embodiment, referring to fig. 2 and 3, the channels include a first channel 11, a second channel 12, and a third channel 13, the first channel 11, the second channel 12, and the third channel 13 are located in the first valve block 1, the second channel 12, and the third channel 13 respectively have ports facing the heat exchange element, the first channel of the heat exchange element 3 communicates with the second channel 12 through the port of the second channel 12, the first channel communicates with the third channel 13 through the port of the third channel 13, and the third channel 13 does not directly communicate with the first channel 11, and the second channel 12. The second flow path of the heat exchange element 3 communicates with channels in other components in the thermal management system, such as a battery cooling assembly, via a connector interface 31. The first throttle element 21 is capable of communicating and not communicating the first passage 11 and the second passage 12, and is capable of throttling the working fluid flowing from the first passage 11 to the second passage 12 by adjusting the valve port opening of the first throttle element 21. Specifically, the first valve block 1 has a first installation cavity 14, and regarding the first valve block 1 alone, the first passage 11 and the second passage 12 respectively communicate with the first installation cavity 14, at least a part of the first throttle element 21 is located in the first installation cavity 14, and the first throttle element 21 is fixedly connected or in limited connection with the first valve block 1. It should be noted that, as another embodiment, the first channel 11, the second channel 12, and the third channel 13 may also be partially located in the first valve block 1, for example, the first valve block 1 has a groove or a hole forming the first channel 11, the groove or the hole located in the first channel of the first valve block and a groove or a hole of the first channel formed by other elements of the fluid control assembly combine to form a complete first channel, and similarly, the first valve block 1 has a groove or a hole forming the second channel 12, and the first valve block 1 has a groove or a hole forming the third channel 13.

Referring to fig. 2 to 4, the reservoir 4 has an outlet 42, the outlet 42 is communicated with the reservoir cavity, and the outlet 42 is communicated with the first channel 11, specifically, in this embodiment, the fluid control assembly 100 further includes a second valve block 5, the second valve block 5 is fixedly connected or connected in a limiting manner with the first valve block 1, for example, the first valve block 1 and the second valve block 5 are fixed by a screw connection, and further, a sealing arrangement may be provided between the second valve block 5 and the first valve block 1, which is beneficial to reducing or preventing the leakage of the working fluid. The channels further comprise a fourth channel 51, the fourth channel 51 is located in the second valve block 5, a first port 511 of the fourth channel 51 is in butt communication with the outlet 42 of the reservoir component 4, and a second port 512 of the fourth channel 51 is in butt communication with the first channel 11 at the port 112 of the first valve block 1, so that the fourth channel 51 is in communication with the first channel 11, that is, the outlet 42 is in communication with the first channel 11 through the fourth channel 51. Of course, as other embodiments, the fluid control assembly 100 may also be in direct communication with the first passage 11 via the outlet 42.

Referring to fig. 2 and 4, the fluid control assembly 100 further includes a switching valve element, in this embodiment, the switching valve element includes a first switching valve element 61 and a second switching valve element 62, the first switching valve element 61 is fixedly connected or connected in a limiting manner with the second valve block 5, the second switching valve element 62 is fixedly connected or connected in a limiting manner with the second valve block 5, and further, a sealing arrangement may be provided between the first switching valve element 61 and/or the second switching valve element 62 and the second valve block 5, which is beneficial to reduce or prevent the leakage of the working fluid. Part of the first on-off valve element 61 and part of the second on-off valve element 62 are located on the same side of the second valve block 5, and the heat exchange element 3 and the first valve block 1 are located on the same other side of the second valve block 5, where the two sides are different sides of the second valve block 5, such as two opposite sides of the second valve block 5, which is beneficial to the rational layout of the fluid control assembly 100 in space and makes the structure compact. The channels further comprise a fifth channel 52, a sixth channel 53 and a seventh channel 54, similarly, at least part of the fifth channel 52, at least part of the sixth channel 53 and at least part of the seventh channel 54 are located in the second valve block 5, the fifth channel 52 is communicated with the sixth channel 53, the fifth channel 52 is communicated with the seventh channel 54, further, the central axis of at least part of the fifth channel 52 is perpendicular to or tends to be perpendicular to the central axis of at least part of the sixth channel 53, and the central axis of at least part of the sixth channel 53 is coincident with or tends to be coincident with the central axis of at least part of the seventh channel 54, which facilitates the channel structure to be simple and the processing to be convenient. The second valve block 5 has a second mounting cavity 57 and a third mounting cavity 58, the second mounting cavity 57 communicating with the sixth passage 53 and the third mounting cavity 58 communicating with the seventh passage 54 for a single component of the second valve block 5. A part of the first switching valve element 61 is located in the sixth channel 53 through the second mounting chamber 57, the first switching valve element 61 can control the opening and closing of the sixth channel 53, a part of the second switching valve element 62 is located in the seventh channel 54 through the third mounting chamber 58, and the second switching valve element 62 can control the opening and closing of the seventh channel 54. In the present embodiment, the first switch valve element 61 and the second switch valve element 62 are two-way ball valves, but as another embodiment, the first switch valve element 61 and the second switch valve element 62 may be other switch valves, such as electromagnetic valves. The fluid control assembly 100 further includes a plug 50, at least a portion of the plug 50 is located in the fifth channel 52, the plug 50 is fixedly connected or in limited connection with the first valve block 5, the plug 50 is arranged in a sealing manner with the first valve block 5, and the plug 50 is arranged to plug a processing opening of the fifth channel 52.

Referring to fig. 2-4, the fluid control assembly 100 also has an interface through which the fluid control assembly 100 communicates in docking with other elements in the thermal management system. In this embodiment, the ports include a first port 111, a second port 131, a third port 132, a fourth port 521, a fifth port 531 and a sixth port 541, an opening of the first port 111 is located on one side of the outer wall surface of the first valve block 1, the first port 111 is communicated with the first channel 11, and further the first port 111 can be communicated with the outlet of the reservoir component 4 through the first channel 11 and the fourth channel 51, in this embodiment, the first port 111 is an outlet of the fluid control assembly. The opening of the second port 131 is located on the outer wall surface on the other side of the first valve block 1, the opening of the third port 132 and the opening of the first port 111 are located on the outer wall surface on the same side of the first valve block 1, and the second port 131 and the third port 132 are communicated through the third channel 13. The fourth port 521 is located on an outer wall surface of one side of the second valve block 5, and the fourth port 521 is communicated with the fifth channel 52, in this embodiment, in order to facilitate the docking of the fifth port 531 and the sixth port 541 with other elements in the thermal management system, referring to fig. 2, the fluid control assembly 100 further includes a first connecting block 55 and a second connecting block 56, the first connecting block 55 is fixedly connected or connected in a limiting manner with the second valve block 5, and the second connecting block 56 is fixedly connected or connected in a limiting manner with the second valve block 5, for example, the first connecting block 55 and the second connecting block 56 are respectively fixed to the second valve block 5 by screws. Sealing arrangements may also be provided between first and/or second connecting blocks 55, 56 and second valve block 5 to help reduce or prevent leakage of the working fluid. The first connecting block 55 is formed with a part of the sixth channel 53, the second connecting block 56 is formed with a part of the seventh channel 54, or a part of the sixth channel 53 is located on the first connecting block 55, a part of the seventh channel 54 is located on the second connecting block 56, an opening of the fifth port 531 is located on an outer wall surface of the first connecting block 55, the fifth port 531 is communicated with the sixth channel 53, an opening of the sixth port 541 is located on an outer wall surface of the second connecting block 56, the sixth port 541 is communicated with the seventh channel 54, and an opening of the fourth port 521, an opening of the fifth port 53 and an opening of the sixth port 541 are oriented in the same direction, which is beneficial for facilitating the butt communication of the fluid control assembly 100 and other elements of the thermal management system. The first switching valve element 61 controls the on/off of the sixth channel 53 to connect or disconnect the fifth port 531 and the fourth port 521, and the second switching valve element 62 controls the on/off of the seventh channel 54 to connect or disconnect the sixth port 541 and the fourth port 521. Of course, as another embodiment, the fluid control assembly 100 may not include the first connection block 55 and the second connection block 56, the opening directions of the fourth port 521, the fifth port 531, and the sixth port 541 may be different, and the fourth port 521 may be replaced by a processing port of the fifth passage 53.

Referring to fig. 2, 5 and 6, the fluid storage member 4 further includes a third connecting block 43, a fourth connecting block 44 and an end cap 40, in this embodiment, the third connecting block 43 and the fourth connecting block 44 are integrally formed with the end cap 40, but as another embodiment, the third connecting block 43 and the fourth connecting block 44 may also be fixedly connected or connected with the end cap 40 in a limiting manner, respectively, and a sealing arrangement may be provided between the third connecting block 43 and/or the fourth connecting block 44 and the fluid storage member 4 to reduce or prevent leakage of the working fluid, for example, the third connecting block 43 and the fourth connecting block 44 are fixed and sealed with the end cap 40 by welding, respectively. The liquid storage member 4 further has a first inlet 45 and a second inlet 46, the first inlet 45 being located in the third connecting block 43, the second inlet 46 being located in the fourth connecting block 44, the liquid storage member 4 further has a first inlet channel 431 and a second inlet channel 441, at least a part of the first inlet channel 431 being located in the third connecting block 43, at least a part of the second inlet channel 441 being located in the fourth connecting block 44, the first inlet 45 communicating with the liquid storage chamber through the first inlet channel 431, and the second inlet 46 communicating with the liquid storage chamber through the second inlet channel 441. In this embodiment, the liquid storage component 4 further has a built-in one-way valve having a function of one-way communication and reverse blocking, the one-way valve includes a first one-way valve 47 and a second one-way valve 48, at least a part of the first one-way valve 47 is located in the first inlet channel 431, at least a part of the second one-way valve 48 is located in the second inlet channel 441, the first inlet 45 is in one-way communication with the liquid storage cavity through the first one-way valve 47, and the second inlet 46 is in one-way communication with the liquid storage cavity through the second one-way valve 48, and the first one-way valve 47 and the second one-way valve 48 are provided to prevent the working fluid from flowing backward from one inlet (e.g. the first inlet 45) to the other inlet (e.g. the second inlet 46) after entering the liquid storage cavity through the two or more inlets of the liquid storage component 4. Of course, as another embodiment, a check valve may be disposed on the first valve block 1 or the second valve block 5 or the system pipeline, and the check valve is embedded in the reservoir component 4, which is beneficial to make the fluid control assembly 100 compact. In this embodiment, the outlet 42 is also located in the third connecting block 43, and the outlet 42 communicates with the reservoir through an outlet channel in which the outlet 42, the first inlet 45, and the second inlet 46 are oriented in the same direction. In addition, referring to fig. 4, in order to ensure the connection fixation of the second valve block 5, when the outlet 42 communicates with the first port 511 of the fourth channel 51, the third connecting block 43 is also fixedly connected or connected in a limiting manner with the second valve block 5, for example, the second valve block 5 is fixedly connected or connected in a limiting manner with the third connecting block 43 by screws, but as another embodiment, the second valve block 5 may be fixedly connected or connected in a limiting manner with only the liquid storage component 4. A sealing arrangement may also be provided between the second valve block 5 and the third connecting block 43 to reduce or prevent leakage of the working fluid. Of course, as other embodiments, the reservoir unit 4 may include a fifth connecting block, the outlet 42 may be provided in the fifth connecting block, or the reservoir unit 4 may include only one inlet, and in this case, the check valve may not be provided. The liquid storage element 4 is mainly used for storing liquid-phase working fluid (such as refrigerant), adjusting the circulation amount of the liquid-phase working fluid in time under different working modes of the thermal management system, and simultaneously playing a liquid sealing role to prevent gas-phase working fluid from flowing to a subsequent loop.

Referring to fig. 1 to 7, in order to ensure safe and stable operation of the thermal management system, the control accuracy of the fluid control assembly 100 needs to be improved, specifically, the fluid control assembly 100 further includes sensors, in this embodiment, the sensors include a first sensor 71, a second sensor 72, and a third sensor 73, a sensing portion of the first sensor 71 is located in the third channel 13 or a first accommodating cavity 133 communicated with the third channel 13, a portion of the first sensor 71 is located in the first accommodating cavity 133, the first sensor 71 is fixedly connected or in a limiting connection with the first valve block 1 and may be provided with a sealing arrangement, the first sensor 71 may be a temperature sensor, and the first sensor 71 may be capable of detecting the temperature of the working fluid in the third channel 13. The sensing part of the second sensor 72 is located in the fourth channel 51 or the second containing chamber 513 communicated with the fourth channel 51, part of the second sensor 72 is located in the second containing chamber 513, the second sensor 72 is fixedly or limitedly connected with the second valve block 5, the second sensor 72 can be a temperature and pressure sensor, the second sensor 72 can detect the temperature and pressure of the working fluid flowing from the outlet 42 of the reservoir unit 4 to the fourth channel 51, but it is easy to conceive that the second sensor 72 can be replaced by a temperature sensor and a pressure sensor. A sensing portion of the third sensor 73 is located at the second inlet channel 441 of the fourth connecting block 44 or the third accommodating chamber 442 communicated with the second inlet channel 441, a portion of the third sensor 73 is located at the third accommodating chamber 442, the third sensor 73 is fixedly or limitedly connected to the fourth connecting block 44, the third sensor 73 may be a temperature sensor, and the third sensor 73 can detect the temperature of the working fluid flowing from the second inlet 46 to the reservoir. Of course, as another embodiment, a fourth sensor may be further disposed on the third connecting block 43, a sensing portion of the fourth sensor is located in the first inlet channel 431 or a fourth accommodating cavity communicated with the first inlet channel 431, a part of the fourth sensor is located in the fourth accommodating cavity, the fourth sensor is fixedly connected or limited to the third connecting block 43, the fourth sensor may be a temperature sensor, and the fourth sensor detects the temperature of the working fluid flowing from the first inlet 45 to the reservoir.

Referring to fig. 1, 2 and 7, the fluid control assembly 100 further includes a mounting bracket 8, the fluid control assembly 100 is fixed to a vehicle or other equipment through the mounting bracket 8, the mounting bracket 8 is fixedly connected or connected in a limited manner to the first valve block 1, in this embodiment, the mounting bracket 8 is fixedly connected or connected in a limited manner to the first valve block 1 through a screw, further, to ensure that the mounting bracket 8 is fixedly connected, the mounting bracket 8 is also fixedly connected or connected in a limited manner to the heat exchange element 3, specifically, the heat exchange element 3 further includes a connecting portion 32, the connecting portion 32 is fixedly connected or connected in a limited manner to a bottom plate 33 of the heat exchange element 3, for example, the connecting portion 32 is fixed to the bottom plate 33 through welding, and the mounting bracket 8 is fixedly connected or connected in a limited manner to the connecting portion 32, for example, the mounting bracket 8 is fixed to the connecting portion 32 through a screw.

The fluid control assembly 100 may be applied to a thermal management system, referring to fig. 8 to 10, which is an embodiment of the fluid control assembly 100 applied to a thermal management system, in this embodiment, the thermal management system further includes a compressor 201, a first condenser 202, a second condenser 203, an evaporator 204, a second throttle element 205, and a third check valve 206, wherein an outlet of the compressor 201 is in butt communication with a fourth interface 521, an inlet of the compressor 201 is in butt communication with a third interface 132, the first condenser 202 is in butt communication with a fifth interface 531 and a first inlet 45, respectively, the second condenser 203 is in butt communication with a sixth interface 541 and a second inlet 46, respectively, one interface of the evaporator 204 is in butt communication with the first interface 111 through the second throttle element 205, and another interface of the evaporator 204 is in butt communication with the second interface 541 through the third check valve 206.

The application of the fluid control assembly 100 to a thermal management system includes, but is not limited to, two modes of operation:

a first operating mode: the first opening/closing valve element 61 is opened, the second opening/closing valve element 62 is closed, the first throttle valve element 21 is opened, and the second throttle valve element 205 is opened, with the fourth port 521 communicating with the fifth port 531, the first passage 11 communicating with the second passage 12, and the first inlet port 45 communicating with the outlet port 42.

A high-temperature and high-pressure gas-phase working fluid (such as a refrigerant) on the outlet side of the compressor 201 enters the fifth passage 52 through the fourth port 521, flows out from the fifth port 531 through the sixth passage 53, flows to the first condenser 202, is condensed by the first condenser 202 to dissipate heat, is changed into a gas-liquid two-phase working fluid, flows into the liquid storage component 4 through the first inlet 45, flows into the first passage 11 through the outlet 42 by the liquid storage component 4, flows out a part of the liquid-phase working fluid in the first passage 11 from the first port 111, is throttled by the second throttle valve component 205 (at this time, the second throttle valve component 205 is opened) to be changed into a low-pressure and low-temperature working fluid, flows into the evaporator 204, evaporates and absorbs heat by the evaporator 204, and then enters the third passage 13 through the second port 131 under one-way conduction of the third check valve 206; the other part of the liquid-phase working fluid in the first passage 11 is throttled by the first throttle element 21 and becomes low-pressure low-temperature working fluid, flows into the second passage 12, flows into the first flow passage of the heat exchange element 3, exchanges heat with another working fluid in the second flow passage of the heat exchange element 3 to absorb heat, flows into the third passage 13, and the working fluid in the third passage 13 is merged and then flows to the inlet of the compressor 201 through the third port 132 to be recirculated.

A second working mode: the first switching valve element 61 is closed, the second switching valve element 62 is opened, the first throttle element 21 is opened, and the second throttle element 205 is closed, at which time the fourth port 521 communicates with the sixth port 541, the first passage 11 communicates with the second passage 12, and the second inlet 46 communicates with the outlet 42.

The high-temperature high-pressure gas-phase working fluid on the outlet side of the compressor 201 enters the fifth passage 52 through the fourth port 521, flows out through the sixth port 541 of the seventh passage 54, flows toward the second condenser 203, is condensed by the second condenser 203 to dissipate heat, becomes a gas-liquid two-phase working fluid, flows into the reservoir 4 through the second inlet 46, flows into the liquid-phase working fluid through the outlet 42 from the reservoir 4 into the first passage 11, and when the second throttle valve 205 is closed, the working fluid in the first passage 11 becomes a low-pressure low-temperature working fluid after being throttled by the first throttle valve 21, flows into the second passage 12, flows into the first passage of the heat exchange element 3, absorbs heat after exchanging with another working fluid in the second passage, flows into the third passage 13, and flows to the inlet of the compressor 201 through the third port 132 for recirculation. The third check valve 206 is provided to prevent the working fluid in the third channel 13 from flowing into the evaporator 204 when the evaporator 204 is not in operation, but as another embodiment, the thermal management system may not include the third check valve 206, that is, the other port of the evaporator 204 is directly in butt communication with the second port 131.

It should be noted that: although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that modifications and equivalents may be made thereto, and all technical solutions and modifications that do not depart from the spirit and scope of the present application are intended to be covered by the claims of the present application.

Claims (11)

1. A fluid control assembly comprising a first throttle element, a reservoir element and a heat exchange element, wherein the fluid control assembly further comprises a first valve block, at least a portion of the first throttle element is located in a first mounting cavity of the first valve block, so that the first throttle element is fixedly or limitedly connected to the first valve block, the reservoir element and the heat exchange element are respectively fixedly or limitedly connected to the first valve block, the fluid control assembly comprises a channel, the channel comprises a first channel, a second channel and a third channel, at least a portion of the first channel, at least a portion of the second channel and at least a portion of the third channel are located in the first valve block, the heat exchange element comprises a first flow channel, the first flow channel is communicated with the second channel and the third channel, the fluid control assembly comprises a reservoir cavity, at least a portion of the reservoir cavity is located in the reservoir element, the reservoir cavity is communicated with the first channel, and the first throttle element can be communicated with and not communicated with the second channel.

2. The fluid control assembly of claim 1, wherein the heat exchange element comprises a plurality of stacked plates, the heat exchange element being located on one side of the first valve block in a stacking direction of the plates, a portion of the first throttle element and the reservoir element being located on the same other side of the first valve block, the two sides being different sides of the first valve block.

3. The fluid control assembly according to claim 1 or 2, wherein the second channel and the third channel each have a port at the first valve block facing the heat exchanging element, the first channel communicates with the second channel and the third channel through the ports, respectively, the reservoir element has an outlet communicating with the reservoir, and the outlet communicates with the first channel.

4. The fluid control assembly as defined in claim 3, further comprising a second valve block fixedly connected or restrained to the first valve block and/or fixedly connected or restrained to a reservoir component, the second valve block having a fourth passageway through which the outlet communicates with the first passageway.

5. The fluid control assembly of claim 4 further comprising a first port, a second port, and a third port, wherein the opening of the first port and the opening of the third port are located on the same outer wall surface of the first valve block, the opening of the second port is located on the other outer wall surface of the first valve block, the first port is in communication with the outlet via the first and fourth passages, and the third passage is in communication with the second port and the third port.

6. The fluid control assembly of claim 4 or 5, further comprising a first one-way valve and a second one-way valve, wherein the reservoir component further comprises a first inlet in communication with the first inlet channel, a second inlet in communication with the second inlet channel, a first inlet channel in which at least a portion of the first one-way valve is located, and a second inlet channel in which at least a portion of the second one-way valve is located, wherein the first inlet is in one-way communication with the reservoir through the first one-way valve, and wherein the second inlet is in one-way communication with the reservoir through the second one-way valve.

7. The fluid control assembly of claim 6 further comprising a first on-off valve member and a second on-off valve member, a portion of the first on-off valve member being positioned in the second mounting cavity of the second valve block, the first on-off valve member being fixedly or captively coupled to the second valve block, a portion of the second on-off valve member being positioned in the third mounting cavity of the second valve block, the second on-off valve member being fixedly or captively coupled to the second valve block; the channel further comprises a fifth channel, a sixth channel and a seventh channel, at least part of the fifth channel, at least part of the sixth channel and at least part of the seventh channel are located in the second valve block, the fifth channel is respectively communicated with the sixth channel and the seventh channel, part of the first switch valve element is located in the sixth channel, the first switch valve element controls the on-off of the sixth channel, part of the second switch valve element is located in the seventh channel, and the second switch valve element controls the on-off of the seventh channel.

8. The fluid control assembly of claim 7 wherein a portion of the first on-off valve element and a portion of the second on-off valve element are located on the same side of the second valve block, and the heat exchange element and the first valve block are located on the same other side of the second valve block, the two sides being different sides of the second valve block.

9. The fluid control assembly as defined in claim 7 or 8, further having a fourth port in communication with said fifth passage, a fifth port in communication with said sixth passage, a sixth port in communication with said seventh passage, said first on-off valve element being connected and disconnected with said fourth port and said fifth port, said second on-off valve element being connected and disconnected with said fourth port and said sixth port.

10. The fluid control assembly of claim 9, further comprising a first connecting block, a second connecting block, a third connecting block, and a fourth connecting block, wherein the first connecting block and the second connecting block are respectively fixedly connected or limitedly connected to the second valve block, the fifth port and a portion of the sixth channel are located in the first connecting block, the sixth port and a portion of the seventh channel are located in the second connecting block, and an opening of the fourth port, an opening of the fifth port, and an opening of the sixth port are oriented in the same direction;

at least part of the first inlet channel is positioned on the third connecting block, at least part of the second inlet channel is positioned on the fourth connecting block, the first inlet and the outlet are positioned on the third connecting block, the second inlet is positioned on the fourth connecting block, and the first inlet, the second inlet and the outlet are in the same orientation.

11. A thermal management system comprising a compressor, a first condenser, a second condenser, an evaporator, a fluid control assembly in abutting communication with the compressor, the first condenser, the second condenser, and the evaporator, respectively, the fluid control assembly being the fluid control assembly of any one of claims 1-10.

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