Fluid management device

Abstract

The fluid management device disclosed by the application comprises a barrier portion, the barrier portion is located between the catheter port and the inlet of the second channel along the radial direction of the first cavity, and the barrier portion is located between the inlet of the second channel and the side wall of the second containing portion. The fluid management device is provided with the barrier portion, which is beneficial to prevent flash from occurring at the catheter port and the inlet of the second channel, can improve the performance of the refrigerant, and can also reduce the refrigerant pressure loss.

Description

Technical Field

[0001] This invention relates to the field of fluid management technology, and more specifically to a fluid management device. Background Technology

[0002] The thermal management system includes heat exchangers and expansion valves, which are connected by pipelines. The heat exchangers and expansion valves occupy a lot of space, and the pipelines also cause heat loss of the refrigerant, reducing the performance of the thermal management system. Summary of the Invention

[0003] The purpose of this application is to provide a fluid management device that facilitates the miniaturization of the fluid management device structure.

[0004] One embodiment of the present invention provides a fluid management device, including a block assembly and a conduit assembly. The fluid management device has a first channel, a second channel, and a gas-liquid separation chamber. The gas-liquid separation chamber is located within the block assembly. The block assembly includes a first receiving portion and a second receiving portion. The first receiving portion has a first receiving cavity, and the second receiving portion has a second receiving cavity. The gas-liquid separation chamber is a part of the second receiving cavity. At least a portion of the conduit assembly is located in the second receiving cavity. The conduit assembly is fixedly or limitedly connected to the second receiving portion. The conduit assembly includes a conduit with a port facing the side where the bottom wall of the second receiving portion is located. The first channel has a first channel outlet on the side wall of the second receiving portion and communicates with the gas-liquid separation chamber. The second channel has a second channel inlet on the bottom wall of the second receiving portion and communicates with the gas-liquid separation chamber. Along the axial direction of the conduit, the conduit port is located between the first channel outlet and the second channel inlet.

[0005] The fluid management device includes at least one barrier portion along the axial direction of the conduit, the barrier portion being located between the conduit port and the second channel inlet, and along the radial direction of the gas-liquid separation chamber, the barrier portion being located between the second channel inlet and the sidewall of the second receiving portion.

[0006] The fluid management device provided in the embodiments of this application includes a barrier portion. Along the axial direction of the conduit, the barrier portion is located between the conduit port and the second channel inlet. Along the radial direction of the gas-liquid separation chamber, the barrier portion is located between the sidewalls of the second channel inlet and the second receiving portion. The fluid management device is provided with a barrier portion, which helps to prevent flashing at the conduit port and the second channel inlet, improves the performance of the refrigerant, and also reduces the refrigerant pressure loss. Attached Figure Description

[0007] Figure 1This is a three-dimensional structural diagram of a fluid management device from one perspective;

[0008] Figure 2 yes Figure 1 A schematic diagram of the exploded structure of a fluid management device from one perspective;

[0009] Figure 3 yes Figure 1 An exploded structural diagram of the fluid management device from another perspective;

[0010] Figure 4 yes Figure 1 A bottom view of the fluid management device in the diagram;

[0011] Figure 5 yes Figure 4 Schematic diagram of the cross-sectional structure along AA;

[0012] Figure 6 This is a first-person perspective three-dimensional structural diagram of the planetary components;

[0013] Figure 7 This is a two-dimensional structural diagram of the planetary components from a second perspective;

[0014] Figure 8 This is a three-dimensional structural diagram of the first valve seat;

[0015] Figure 9 This is a schematic diagram showing the positional relationship between the first channel, the second cavity, the conduit, and the first projection plane;

[0016] Figure 10 yes Figure 1 A front view schematic diagram of the fluid management device in the diagram;

[0017] Figure 11 yes Figure 10 A cross-sectional structural diagram along the first embodiment of BB;

[0018] Figure 12 yes Figure 10 Schematic diagram of the cross-sectional structure along CC;

[0019] Figure 13 This is a three-dimensional structural diagram of the catheter assembly and the separation disc combination;

[0020] Figure 14 This is a structural schematic diagram of the second block from one perspective;

[0021] Figure 15 This is a schematic diagram showing the positional relationship between the first ring line and the first wall;

[0022] Figure 16 yes Figure 10 A cross-sectional view along the second embodiment of BB;

[0023] Figure 17 This is another three-dimensional structural diagram of the catheter assembly and separation disc combination. Detailed Implementation

[0024] The fluid management device of the present invention can be implemented in various ways. At least one of the embodiments can be applied to a vehicle thermal management system, and at least one embodiment can be applied to other thermal management systems such as a household thermal management system or a commercial thermal management system. The following description takes the fluid management device applied to a vehicle thermal management system as an example and is illustrated with reference to the accompanying drawings. The fluid is a refrigerant, including R134a, CO2, or other forms of refrigerant.

[0025] Please see Figures 1-14The fluid management device 100 includes a block assembly 3000 and a valve core 430. The block assembly 3000 includes a first block 3100 and a second block 3200. The first block 3100 and the second block 3200 are fixedly connected or limitedly connected. The fixed connection includes the first block 3100 and the second block 3200 being an integral structure, or the first block 3100 and the second block 3200 being welded, bonded, or otherwise fixedly connected. The limited connection includes bolted connection or other limited connection. In this embodiment, the first block and the second block are connected by bolts. The fluid management device 100 has a first channel 3202, a first cavity 3101, and a second cavity 3201. The first cavity 3101 is located in the first block 3100, and the second cavity 3201 is located in the second block 3200. At least a portion of the first channel 3202 is formed in the second block 3200, and the first channel 3202 communicates with the second cavity 3201. The valve core 430 is located in the first cavity 3101 and can move within the first cavity 3101. In this embodiment, the valve core 430 has a spherical, near-spherical, or cylindrical structure and can rotate within the first cavity 3101. The valve core 430 has a conduction channel 431. In one working state of the fluid management device 100, the first cavity 3101 is connected to the first channel 3202 through the conduction channel 431, thereby connecting the first cavity 3101 to the second cavity 3201. The fluid management device 100 also has a throttling chamber 403. In this embodiment, the valve core 430 has a throttling groove 432. The valve core 430 and the corresponding mating surface cooperate to form the throttling chamber 403 of the fluid management device 100. The first chamber 3101 can be connected to the first channel 3202 through the throttling chamber 403, and then the first chamber 3101 is connected to the second chamber 3201. The refrigerant in the first chamber 3101 enters the second chamber 3201 after being throttled and depressurized by the throttling chamber 403. The fluid management device 100 includes a first block 3100 and a second block 3200. A first cavity 3101 is located within the first block 3100, and a valve core 430 can operate within the first cavity 3101. A second cavity 3201 is located within the second block 3200, and a first channel 3202 can connect the first cavity 3101 and the second cavity 3201. The first channel 3202 is at least partially located within the second block 3200. The first block 3100 and the second block 3200 are fixedly connected or limit-connected, which can relatively reduce the pipeline connections between different components. The integration of the fluid management device 100 is relatively high, and it can also reduce the refrigerant flow resistance.

[0026] In a specific implementation, please refer to Figure 1 as well as Figures 5-7The fluid management device 100 includes a control unit, a transmission device 2000, a block assembly 3000, and a valve core 430. In the technical solution of this embodiment, the block assembly 3000 includes a first block 3100 and a second block 3200, which are connected by bolts. The control unit includes a drive mechanism 1000, and a transmission device 2000 is located between the drive mechanism 1000 and the first block 3100. The drive mechanism 1000 includes a motor part 1100, a sleeve 1200, and a connecting seat 1300. One end of the connecting seat 1300 is fixedly connected to the sleeve 1200 and the connection is relatively sealed. The motor part 1100 includes a stator 1110, a motor shaft 1130, and a rotor 1120. The stator 1110 is sleeved on the outside of the sleeve 1200, and the rotor 1120 is connected to the motor shaft 1130. At least part of the rotor 1120 is located inside the sleeve 1200. The motor shaft 1130 passes through the through hole of the connecting seat 1300. After being energized, the rotor 1120 is rotated by the excitation magnetic field generated by the stator, thereby driving the motor shaft 1130 to rotate. The transmission device 2000 includes a gearbox 2100, a planetary assembly 2200, and a valve stem 2300. One end of the gearbox 2100 has a step that is fixedly connected to a connecting seat 1300. This step forms a stepped hole, and the connecting seat 1300 connects to the stepped hole. Of course, when the connecting seat 1300 is connected to the stepped hole, a seal can be provided at the connection to improve the sealing performance. The other end of the gearbox 2100 is fixedly connected to a first block 3100. The gearbox 2100 and the first block 3100 can be sealed by welding or by thread, and a seal can be provided at the connection. The planetary assembly 2200 is located in the cavity formed by the gearbox 2100, or the planetary assembly 2200 is located in the cavity formed by the gearbox 2100, the connecting seat 1300, and / or the first block 3100. The planetary assembly 2200 includes a sun gear 2210, a plurality of planet gears 2220, a gear shaft, a first ring gear 2230, a second ring gear 2240, and two mounting plates 2250. In this embodiment, the planetary assembly 2200 includes three planet gears 2220. The first ring gear 2230 and the second ring gear 2240 are meshed with the sun gear 2210. Both the first ring gear 2230 and the second ring gear 2240 have internal teeth. A portion of each planet gear 2220 meshes with the internal teeth of the first ring gear 2230, and another portion of the planet gear 2220 meshes with the internal teeth of the second ring gear 2240. The outer side of the first ring gear 2230 is fixedly connected to the gearbox 2100, such as by an interference fit or a limiting fit. The planet gears 2220 and the sun gear 2210 are located between two mounting plates 2250. The mounting plate 2250 near the drive mechanism 1000 has a through hole for the motor shaft to pass through, so as to facilitate the engagement of the motor shaft with the sun gear 2210.

[0027] The second gear ring 2240 has a limiting portion 2241, which is disposed on the side of the second gear ring 2240 facing the first block 3100. In this embodiment, the limiting portion 2241 is formed into two arc-shaped grooves, which are symmetrically distributed about the axis of the second gear ring 2240. Correspondingly, the first block 3100 is provided with a limiting post that cooperates with the limiting portion 2241. Similarly, the limiting post is also symmetrically distributed about the axis of the second gear ring 2240. The limiting post is located in the arc-shaped groove. The two ends of the limiting portion 2241 can limit the rotation range of the second gear ring 2240. It can be seen that the rotation range of the second gear ring 2240 can be limited by setting the arc angle between the two ends of the limiting portion, thereby limiting the rotation range of the valve stem 2300. In this embodiment, the arc angle of the limiting portion 2241 is set to 90°. The arc angle of the limiting portion 2241 can be adaptively set according to different application environments. One end of the valve stem 2300 extends into the center hole of the second gear ring 2240. The valve stem 2300 and the second gear ring 2240 can be fixedly connected by interference fit or welding. Of course, the valve stem 2300 can also be fixedly connected to the second gear ring 2240 by injection molding.

[0028] When the fluid management device 100 is working, the motor shaft 1130 rotates, and the sun gear 2210 rotates under the drive of the motor shaft 1300. Due to the meshing action, the planet gear 2220 rotates under the drive of the sun gear 2210. The first gear ring 2230 remains stationary. While the planet gear 2220 rotates around its own axis, it also rotates circumferentially around the sun gear 2210, thereby driving the second gear ring 2240 to rotate. At the same time, the valve stem 2300 also rotates with the rotation of the second gear ring 2240. Due to the mutual cooperation between the limiting part and the limiting post, the valve stem 2300 rotates within a certain range. The first block 3100 includes a valve stem bore portion, which has a valve stem hole. A portion of the valve stem 2300 is located in the valve stem hole, and the valve stem 2300 is dynamically sealed with the valve stem bore portion. In addition, the fluid management device 100 may also include a bushing, which is embedded in the valve stem hole and fixed to the valve stem bore portion. The valve stem 2300 is fitted into the bushing, and the valve stem 2300 is dynamically sealed with the bushing.

[0029] Please see Figure 5 and Figure 8The first block 3100 includes a first receiving portion 3120, which has a first receiving cavity 3121. The first receiving cavity 3121 has an opening facing the second block 3200. The first cavity 3101 is a part of the first receiving cavity 3121 and is the valve cavity of the fluid management device. The fluid management device 100 includes a first valve seat 410 and a second valve seat 420. A portion of the transmission device is located in the first receiving cavity 3121. The transmission device is fixedly connected or limitedly connected to a corresponding portion of the first receiving portion 3120. The valve stem 2300 is drivenly connected to the valve core 430, which can move within the first cavity 3101. The second valve seat 420 is located in the first receiving cavity 3121. The second valve seat 420 is fixed to or limited to a corresponding part of the first receiving portion 3120. At least a portion of the first valve seat 410 is located in the first receiving cavity 3121. In this embodiment, the first valve seat 410 is closer to the second block 3200 than the second valve seat 420. The first valve seat 410 is located on one side of the valve core 430, and the second valve seat 420 is located on the opposite side of the valve core. The first valve seat 410 has a first through hole 411, and the second valve seat 420 has a second through hole 421. The first through hole 411 and the second through hole 421 can be channels for refrigerant. The axis of the first through hole coincides with the axis of the second through hole. The first valve seat 410 and the second valve seat 420 both have mating surfaces that cooperate with the valve core 430. The first through hole 411 and the second through hole 421 have openings on their respective mating surfaces. The mating surfaces 412 of the first valve seat and 420 of the second valve seat contact and press the valve core 430. The mating surfaces 412 of the first valve seat and 420 of the second valve seat slide in cooperation with the valve core 430.

[0030] Please see Figure 5 , Figure 11 as well as Figure 13The second block 3200 includes a second receiving portion 3210, which has a second receiving cavity 3211. The second cavity 3201 is a part of the second receiving cavity 3211 and is a gas-liquid separation cavity of the fluid management device. A first channel 3202 has an outlet 3206 on the side wall 3213 of the second receiving portion, thereby communicating with the first cavity 3101. The fluid management device 100 includes a conduit assembly 500, at least a portion of which is located in the second receiving cavity 3211. The conduit assembly 500 includes a connecting portion 510 and a conduit 520. The connecting portion 510 and the conduit 520 can be an integral structure or separate structures that are then limited and connected. The connecting portion 510 is fixed or limited to a corresponding portion of the second receiving portion 3210 and is relatively sealed at the connection. In this embodiment, the connecting portion 510 is threadedly connected to the second receiving portion 3210. The conduit assembly 500 has a refrigerant channel 501, which includes a cavity for a conduit 520. The conduit 520 has a conduit port 521 facing the side where the bottom wall 3212 of the second receiving portion is located. Refrigerant within the second cavity 3201 can enter the refrigerant channel 501 through the conduit port 521. The conduit port 521 is closer to the bottom wall 3212 of the second receiving portion than the outlet 3206 of the first channel; in other words, along the axial direction of the conduit 520, the conduit port 521 is located between the outlet 3206 of the first channel and the bottom wall 3212 of the second receiving portion. The wall forming the second cavity 3201 includes a side wall 3213 of the second receiving portion, which is generally annular. The conduit 520 is located near the central axis of the second cavity 3201, and more specifically, the axis of the conduit 520 is approximately coincident with the axis of the second cavity 3201.

[0031] The fluid management device 100 includes a second channel portion 3240, which has a second channel 3203. At least a portion of the second channel 3203 is formed in the second block 3200. The second channel 3203 has a second channel inlet 3205 on the bottom wall 3212 of the second receiving portion. In other embodiments, the second channel portion 3240 includes a throttling portion 3241. The orifice diameter of the throttling portion 3241 is in the range of 1.0-2.0 mm. After a portion of the refrigerant in the second cavity 3201 enters the second channel 3203, the throttling portion 3241 can throttle and reduce the pressure of the refrigerant.

[0032] A first projection plane is defined, perpendicular to the axis of conduit 520. The axis of conduit 520 is vertical, and the conduit port 521 is located below the outlet of the first channel 3202. (See also...) Figure 9The projection of the first channel 3202 onto the first projection plane has a first side line 3222 and a second side line 3221. The first side line 3222 is closer to the projection 520' of the conduit 520 onto the first projection plane than the second side line 3221. The extensions of the first side line 3222 and the second side line 3221 are located on the same side of the projection 520' of the conduit. Furthermore, the second side line 3221 is a tangent to the projection 3213' of the side wall of the second receiving portion 3210. Thus, a large amount of mixed refrigerant entering the second cavity 3201 from the first channel 3202 collides with the side wall of the second receiving portion. Since the side wall of the second receiving portion is an annular surface, the refrigerant rotates and flows within the second cavity 3201, which can accelerate the separation of the mixed refrigerant in the second cavity 3201. The gaseous refrigerant enters the refrigerant channel 501 from the conduit port 521, and the liquid refrigerant enters the second channel 3203 from the second channel inlet 3205.

[0033] Please see Figure 2 and Figure 3 The first block 3100 includes a first wall portion 3110, and the second block 3200 includes a second wall portion 3250. At least a portion of the second wall portion 3250 is disposed opposite to the first wall portion 3110, and an opening of the first receiving cavity 3121 is formed in the first wall portion 3110. The second block 3200 includes a first surface 3231, which contacts and presses against the first valve seat 410, and a first opening 3204 is formed in the first surface 3231. In this embodiment, the second block 3200 includes a first protrusion 3230, which protrudes relative to the second wall portion 3250. At least a portion of the first protrusion 3230 is located in the first receiving cavity 3121. The first surface 3231 of the first protrusion 3230 contacts and presses the first valve seat 410, and then the mating surface of the first valve seat 410 contacts and presses the valve core 430. Since the mating surface of the second valve seat 420 also limits the valve core 430, the first protrusion 3230 contacts and presses the first valve seat 410. Under the combined action of the second valve seat 420, the valve core 430 is limited in the first receiving cavity 3121. By fixing or limiting the first block 3100 and the second block 3200, the first protrusion 3230 of the second block 3200 makes the valve core 430 relatively limited in the first receiving cavity 3121. There is no need to set a separate component to fix or limit the first block 3100, such as a valve cover. This not only reduces the number of components, but also reduces the installation steps.

[0034] The second block 3200 includes a recessed portion 3232, which has a cavity 3233. The cavity 3233 has an opening on the wall of the first protrusion 3230 facing the first valve seat 410. At least a portion of the first valve seat 410 is located in the cavity, and the first valve seat 410 is relatively sealed to the recessed portion 3232. In this case, the first surface 3231 is the bottom wall of the recessed portion 3232 or a part of the bottom wall of the recessed portion 3232. Providing the recessed portion 3232 in the first protrusion 3230 can reduce the volume and weight of the fluid management device 100.

[0035] Please see Figure 2 and Figure 5 The second block 3200 has a first opening 3204, which is located on the first surface 3231 of the second block 3200. The first opening 3204 communicates with the first channel 3202 and faces the valve core 430. In this embodiment, the first opening 3204 can be the inlet of the first channel 3202. The first opening 3204 is located on the bottom wall of the groove portion 3232 and faces the first through hole 411. For ease of subsequent description, a first plane is defined, which is perpendicular to the axis of the first through hole 411. When the throttling groove 432 connects the first cavity 3101 and the first opening 3204, at least a portion of the projection of the throttling groove 432 onto the first plane is located within the projection of the first opening 3204 onto the first plane. In this way, the throttled refrigerant can enter the first channel 3202 through the first opening 3204 to the maximum extent, thereby reducing the flow resistance of the throttled refrigerant entering the first channel 3202.

[0036] Please see Figure 12 and Figure 14A first direction and a second direction are defined within a first plane. The first direction is parallel to the axis of the conduit 520, that is, parallel to the axis of the second cavity 3201. The first direction and the second direction are perpendicular. The maximum length of the first opening 3204 in the first direction is greater than the maximum length of the first opening 3204 in the second direction. When the fluid management device 100 is working, when the projection of the throttling groove 432 onto the first surface 3231 is at its maximum, the maximum length of the projection of the throttling groove 432 onto the first plane in the first direction is greater than the maximum length of the projection of the throttling groove 432 onto the first surface 3231 in the second direction. Thus, the extension direction of the throttling groove 432 is consistent with the extension direction of the first opening 3204. During the rotation of the valve core 430, the refrigerant can enter the first opening 3204 to the maximum extent within the throttling stroke of the valve core 430. Furthermore, the valve core 430 can rotate around the axis of the valve stem 2300, and the axis of the valve stem 2300 is parallel to the second direction. In this way, the extension direction of the throttling groove 432 is perpendicular to the axis of the valve stem 2300, which is beneficial to control the formation of the valve core 430 by controlling the rotation angle of the valve core 430, and thus beneficial to control the throttling stroke of the valve core 430.

[0037] Please see Figure 14 The second block 3200 includes a first channel portion 3220, which has a first channel 3202. The first channel portion 3220 includes a second surface 3221, which is inclined relative to the axis of the first through hole 411. The second surface 3221 extends along a first direction and is offset from the first surface 3231 to the opposite side of the second surface 3221. When the throttling groove 432 connects the first cavity 3101 and the first opening 3204, at least a portion of the projection of the throttling groove 432 in the first plane is located at the projection of the second surface 3221 in the first plane.

[0038] Please see Figures 1-3 and Figure 5The fluid management device 100 has a first inlet 103, a first outlet 101, and a second outlet 102. The first inlet 103 is formed in the first block 3100 and communicates with the first cavity 3101. In this embodiment, along the axial direction of the valve stem 2300, the valve core 430 is located between at least a portion of the valve stem 2300 and the first inlet 103. Since the refrigerant entering the first cavity 3101 through the first inlet 103 will impact the valve core 430, and the first inlet 103 is located on the opposite side of the valve stem 2300, this can reduce the shaking of the valve core 430 caused by the refrigerant impact, which is beneficial to maintaining the stability of the valve core 430. The first outlet 101 is located in the conduit assembly 500. Specifically, the first outlet 101 is located in the connection portion 510 of the conduit assembly 500 and communicates with the refrigerant passage 501 of the conduit assembly 500. The second outlet 102 is formed on the first block 3100. In one working state of the fluid management device 100, the first cavity 3101 can be connected to the second cavity 3201 through the throttling cavity 403 or the connecting channel, and part of the fluid in the second cavity 3201 can be discharged through the second outlet 102. In order to facilitate the gaseous refrigeration discharge from the fluid management device 100, the second outlet 102 can be located on the upper wall of the conduit assembly 500.

[0039] Please see Figure 5 and Figure 12 The fluid management device 100 further includes a third channel 3102 and a fourth channel 3103, which are formed in the first block 3100. The third channel 3102 communicates with the second outlet 102 and with the second channel 3203. The fourth channel 3103 is located near the second valve seat 420 and communicates with the second through hole 421. The fourth channel 3103 has an opening in the wall forming the third channel 3102 and communicates with the third channel 3102. In another operating state of the fluid management device 100, that is, when the throttling chamber 403 or the connecting channel 431 connects the first chamber 3101 and the second through hole 421, the first chamber 3101 is connected to the fourth channel 3103. In other words, the refrigerant in the first chamber 3101 can enter the fourth channel 3103 and the third channel 3102 through the throttling chamber 403 or the connecting channel 431, and then be discharged from the fluid management device 100 through the second outlet 102.

[0040] The fluid management device 100 includes a one-way valve component 800 located in the third channel 3102. The second channel 3203 is unidirectionally connected to the second outlet 102 through the one-way valve component 800. The connection between the third channel 3102 and the fourth channel 3103 is closer to the second outlet 102 relative to the one-way valve component 800. In this way, the refrigerant entering the third channel 3102 from the fourth channel 3103 can only be discharged from the second outlet 102 and cannot enter the second channel 3203. Furthermore, the third channel 3102 includes a first sub-section 3104 and a second sub-section 3105. The first sub-section 3104 is located below the first cavity 3101 and communicates with the second channel 3203. The one-way valve component 800 is located in the first sub-section 3104. The second sub-section 3105 communicates with the second outlet 102 and the fourth channel 3103. The second sub-section 3105 is parallel to the axis of the second cavity 3201 and is farther away from the second cavity 3201 than the first cavity 3101. The first sub-section 3104 and the second sub-section 3105 are provided in the first block 3100 body to facilitate the processing and forming of the third channel.

[0041] In other embodiments, the second channel 3203 may not be connected to the third channel 3102, or the third channel 3102 may not include the first sub-part, and the second channel 3203 may have a third outlet in the second block 3200. This can reduce the processing difficulty and also help reduce the leakage risk caused by the connection between the second channel 3203 and the third channel 3102.

[0042] Please see Figure 11 and Figure 13 The fluid management device 100 includes a separating disc 600, with a conduit port 521 facing the upper wall of the separating disc 600. Along the axis of the conduit 520, the separating disc 600 is located between the second channel inlet 3205 and the conduit port 521. There is a gap between the side wall of the separating disc 600 and the side wall 3213 of the second receiving portion for refrigerant flow. In this embodiment, the fluid management device 100 also includes at least two supports 610. One end of the support 610 is fixedly connected or limited to the separating disc 600, and the other end of the support 610 is fixedly connected or limited to the conduit 520. There is a channel for refrigerant flow between adjacent supports 610. In this embodiment, the conduit 520, the connecting portion 510 and the separating disc 600 are an integral structure.

[0043] Please see Figures 15-17In another embodiment illustrated, the fluid management device 100 includes at least one barrier 700. Along the axial direction of the conduit 520, the barrier 700 is located between the conduit port 521 and the bottom wall 3212 of the second receiving portion. Along the radial direction of the first cavity 3101, the barrier 700 is located between the second channel inlet 3205 and the side wall 3213 of the second receiving portion. The barrier 700 may be sheet-like, columnar, or other forms of structure. As the refrigerant rotates and flows in the second cavity 3201, a large amount of relatively liquid refrigerant will be distributed near the bottom wall of the second container, and there will be a relatively large amount of refrigerant near the side wall 3213 of the second container and a relatively small amount of refrigerant near the center of the second cavity 3201. In this way, a vortex is formed in the refrigerant between the second channel inlet 3205 and the conduit port 521. If a vortex is formed, a low pressure will appear in the center of the second cavity 3201 and relatively close to the bottom wall 3212 of the second container, which will cause refrigerant flashing. The fluid management device 100 is provided with a barrier 700, which helps to prevent flashing, improves the performance of the refrigerant, and also reduces the refrigerant pressure loss.

[0044] The barrier portion 700 includes a first wall 710, which can be arc-shaped, planar, or approximately planar. In this embodiment, the barrier portion is plate-shaped, and the first wall 710 is planar or approximately planar. The projection of the outlet 3202 of the first channel onto the projection of the first wall onto the projection of the first projection plane, thus the first wall can impede the flow of refrigerant. A first loop is defined, with its center located on the axis of the first cavity 3101. The first wall can intersect the first loop, and the angle between the tangent of the first loop at the intersection point and the first wall is greater than or equal to 45° and less than or equal to 135°. Thus, the first wall can effectively prevent the refrigerant from forming a vortex between the second channel inlet 3205 and the conduit port 521. In this embodiment, the angle between the tangent of the first loop at the intersection point and the first wall is 90°.

[0045] The fluid management device 100 may further include a separating disc 600. Similarly, the conduit port 521 faces the upper wall of the separating disc 600. Along the axis of the conduit 520, the separating disc 600 is located between the inlet of the second channel 3203 and the conduit port 3205. The separating disc 600 prevents relatively liquid refrigerant from being drawn into the refrigerant channel 501 of the conduit assembly 500. A gap exists between the side wall of the separating disc 600 and the side wall 3213 of the second receiving portion, and a gap exists between the separating disc 600 and the bottom wall 3212 of the second receiving portion. These two gaps are channels for the refrigerant to enter the second channel inlet. The separating disc 600 is fixedly or limitingly connected to the barrier portion 700. This fixed connection includes the case where the separating disc 600 and the barrier portion 700 are an integral structure. In one specific embodiment, along the axial direction of the conduit 520, the separating disc 600 is closer to the first channel outlet 3206 than the blocking portion 700. Along the radial direction of the second cavity, the gap between the blocking portion 700 and the side wall 3213 of the second receiving portion is smaller than the gap between the separating disc 600 and the side wall 3213 of the second receiving portion. This reduces the obstruction of refrigerant flow by the separating disc 600 before the refrigerant enters the space containing the blocking portion 700. In this embodiment, the blocking portion is fixedly or limitingly connected to the bottom wall 3212 of the second receiving portion.

[0046] The number of barrier portions 700 is at least one. When the number of barrier portions is greater than or equal to three and less than or equal to ten, the barrier effect on the refrigerant can be further improved. In this embodiment, the number of barrier portions is eight. Along the circumference of the second cavity, adjacent barrier portions are spaced apart. The gap between adjacent barrier portions is the channel through which the refrigerant enters the second channel inlet.

[0047] In another specific embodiment, the side wall of the separating disc 600 is fixed or limited to one end of the blocking part 700, and the other end of the blocking part 700 is fixed or limited to the side wall 3213 of the second receiving part. There is a gap between adjacent blocking parts 700, and the gap between adjacent blocking parts 700 is a refrigerant flow channel.

[0048] It should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present invention. All technical solutions and improvements that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A fluid management device, comprising a block assembly and a conduit assembly, the fluid management device having a first channel, a second channel, and a gas-liquid separation chamber, the gas-liquid separation chamber being located within the block assembly, the block assembly including a first receiving portion and a second receiving portion, the first receiving portion having a first receiving cavity, the second receiving portion having a second receiving cavity, the gas-liquid separation chamber being a part of the second receiving cavity, at least a portion of the conduit assembly being located within the second receiving cavity, the conduit assembly being fixedly or limitingly connected to the second receiving portion, the conduit assembly including a conduit having a port, the port of the conduit facing the side where the bottom wall of the second receiving portion is located, the first channel having a first channel outlet on the side wall of the second receiving portion, the first channel communicating with the gas-liquid separation chamber, the second channel having a second channel inlet on the bottom wall of the second receiving portion, the second channel communicating with the gas-liquid separation chamber, the conduit port being located between the first channel outlet and the second channel inlet along the axial direction of the conduit; The fluid management device includes at least one barrier portion along the axial direction of the conduit, located between the conduit port and the second channel inlet, and along the radial direction of the gas-liquid separation chamber, located between the second channel inlet and the sidewall of the second receiving portion.

2. The fluid management device according to claim 1, characterized in that, The fluid management device includes a valve core, has a throttling chamber and a valve chamber, the valve chamber is part of the first receiving chamber, the valve core is located in the valve chamber, and the valve core has a conducting channel; in one operating state of the fluid management device, the valve chamber is connected to the first channel through the throttling chamber or the conducting channel; Define a first projection plane, which is perpendicular to the axis of the conduit. The projection of the first channel onto the first projection plane has a first side line and a second side line. The first side line is closer to the projection of the conduit onto the first projection plane than the second side line. The extensions of the first side line and the second side line are located on the same side of the conduit projection.

3. The fluid management device according to claim 1 or 2, characterized in that, Define a first projection plane, which is perpendicular to the axis of the conduit. The barrier includes a first wall, and the outlet of the first channel is projected onto the projection of the first wall onto the first projection plane. Define a first loop line, the center of which is located on the axis of the gas-liquid separation chamber. The first wall intersects the first loop line, and the angle between the tangent of the first loop line at the intersection point and the first wall is greater than or equal to 45° and less than or equal to 135°.

4. The fluid management device according to claim 3, characterized in that, The fluid management device includes a separation disc, which is fixed or limited to the barrier portion. A gap is provided between the separation disc and the side wall of the second receiving portion along the radial direction of the gas-liquid separation chamber. Along the axial direction of the conduit, the separation disc is located between the bottom wall of the second receiving portion and the conduit port, with the conduit port facing the upper wall of the separation disc.

5. The fluid management device according to claim 4, characterized in that, One end of the barrier is fixed or limited to the bottom wall of the second accommodating part, and the other end of the barrier is fixed or limited to the separation disk. Along the radial direction of the gas-liquid separation chamber, there is a gap between the barrier and the side wall of the second accommodating part.

6. The fluid management device according to claim 5, characterized in that, Along the radial direction of the gas-liquid separation chamber, the gap between the barrier portion and the sidewall of the second receiving portion is smaller than the gap between the separation disc and the sidewall of the second receiving portion.

7. The fluid management device according to claim 1 or 2, characterized in that, The fluid management device includes a separation disc along the axial direction of the conduit. The separation disc is located between the bottom wall of the second receiving portion and the conduit port. The conduit port faces the upper wall of the separation disc. The side wall of the separation disc is fixedly or limitedly connected to one end of the blocking portion, and the other end of the blocking portion is fixedly or limitedly connected to the side wall of the second receiving portion.

8. The fluid management device according to claim 6, characterized in that, The barrier is plate-shaped, and the number of the barrier is greater than or equal to 3 and less than or equal to 10.

9. The fluid management device according to claim 7, characterized in that, The barrier is plate-shaped, and the number of the barrier is greater than or equal to 3 and less than or equal to 10.

10. The fluid management device according to claim 8, characterized in that, The block assembly includes a first block and a second block, the first block and the second block being fixedly or limitingly connected, the second block including a second receiving portion, the fluid management device having a valve chamber located within the first block, the gas-liquid separation chamber located within the second block, the fluid management device having a throttling chamber, a first inlet, a first outlet and a second outlet, the first inlet and the second outlet located within the first block, the first inlet communicating with the valve chamber, the first outlet communicating with the gas-liquid separation chamber, the first outlet located within the conduit assembly, and the fluid management device having a conductive channel; In one operating state of the fluid management device, the valve chamber is connected to the first channel through the throttling chamber or the conducting channel; in another operating state of the fluid management device, the valve chamber is connected to the second outlet through the throttling chamber or the conducting channel.

11. The fluid management device according to claim 9, characterized in that, The block assembly includes a first block and a second block, the first block and the second block being fixedly or limitingly connected, the second block including a second receiving portion, the fluid management device having a valve chamber located within the first block, the gas-liquid separation chamber located within the second block, the fluid management device having a throttling chamber, a first inlet, a first outlet and a second outlet, the first inlet and the second outlet located within the first block, the first inlet communicating with the valve chamber, the first outlet communicating with the gas-liquid separation chamber, the first outlet located within the conduit assembly, and the fluid management device having a conductive channel; In one operating state of the fluid management device, the valve chamber is connected to the first channel through the throttling chamber or the conducting channel; in another operating state of the fluid management device, the valve chamber is connected to the second outlet through the throttling chamber or the conducting channel.

12. The fluid management device according to claim 10, characterized in that, The fluid management device includes a one-way valve component, and the fluid management device also includes a third channel and a fourth channel. The one-way valve component is located in the third channel. The second channel can be unidirectionally connected to the second outlet through the one-way valve component. The connection between the third channel and the fourth channel is closer to the second outlet relative to the one-way valve component. The second block includes a second channel portion having a second channel and a throttling portion having an aperture range of 1.0-2.0 mm.

13. The fluid management device according to claim 11, characterized in that, The fluid management device includes a one-way valve component, and the fluid management device also includes a third channel and a fourth channel. The one-way valve component is located in the third channel. The second channel can be unidirectionally connected to the second outlet through the one-way valve component. The connection between the third channel and the fourth channel is closer to the second outlet relative to the one-way valve component. The second block includes a second channel portion having a second channel and a throttling portion having an aperture range of 1.0-2.0 mm.

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