Liquid storage device, integrated assembly and manufacturing method of liquid storage device

Abstract

The invention relates to a liquid storage device. The liquid storage device comprises a first plate body, a second plate body and a third plate body, wherein the first plate body is fixedly connected with the second plate body; the liquid storage device comprises a liquid storage cavity and a channel, the wall part forming the liquid storage cavity is located on the first plate body, and the wall part forming the liquid storage cavity is located on the second plate body; the third plate body is located in the liquid storage cavity and fixedly connected with the first plate body, part of the wall forming the channel is located on the third plate body, part of the wall forming the channel is located on the first plate body, or the third plate body is fixedly connected with the second plate body, part of the wall forming the channel is located on the third plate body, and part of the wall forming the channel is located on the second plate body; the channel is communicated with the liquid storage cavity, the liquid storage device comprises a first external connector and a second external connector, the first external connector is communicated with the liquid storage cavity, and the second external connector is communicated with the channel. The structure is relatively simple.

Description

Technical Field

[0001] This invention relates to the field of fluid management technology, and in particular to a liquid storage device, an integrated component, and a method for manufacturing the liquid storage device. Background Technology

[0002] Thermal management systems typically include a liquid storage device to store the refrigerant, providing the necessary liquid supply for the refrigeration system's circulation and ensuring stable system operation.

[0003] In related technologies, the liquid storage device includes a cylinder, a cover, and a guide tube. The cylinder and the cover are fixedly connected, the guide tube is located inside the cylinder, and the guide tube is sealed and fixedly connected to the cover. The connection between the guide tube and the cover must ensure both fixation and sealing, making the structure relatively complex. In other technologies, the liquid storage device includes an elongated shell and a cover plate. Multiple partition plates are set in the cavity of the shell, dividing the cavity into independent chambers for gas-liquid separation. The multiple partition plates are fixedly connected to the shell, or the multiple partition plates and the shell are integrated into a single structure by die casting or extrusion, making the overall structure relatively complex. Summary of the Invention

[0004] Therefore, it is necessary to provide a liquid storage device, an integrated component, and a method for manufacturing the liquid storage device to address the above problems, thereby simplifying the structure of the liquid storage device.

[0005] The technical solution adopted in this application embodiment is as follows: A liquid storage device includes a first plate, a second plate, and a third plate, with the first plate and the second plate fixedly connected; the liquid storage device includes a liquid storage cavity and a channel, with a portion of the wall forming the liquid storage cavity located on the first plate and a portion of the wall forming the liquid storage cavity located on the second plate; the third plate is located in the liquid storage cavity and is fixedly connected to the first plate, with a portion of the wall forming the channel located on the third plate and a portion of the wall forming the channel located on the first plate, or the third plate is fixedly connected to the second plate, with a portion of the wall forming the channel located on the third plate and a portion of the wall forming the channel located on the second plate; the channel and the liquid storage cavity are in communication, and the liquid storage device includes a first external interface and a second external interface, with the first external interface communicating with the liquid storage cavity and the second external interface communicating with the channel.

[0006] This application provides a liquid storage device, including a first plate, a second plate, and a third plate. The first and second plates cooperate to form at least a portion of a liquid storage cavity, and the third plate is located inside the liquid storage cavity. The third plate cooperates with the first or second plate to form at least a portion of a channel. The channel in this solution is equivalent to a guide tube in related technologies. At least a portion of the channel is formed by the relatively simple structure of the third plate cooperating with the first or second plate, and at least a portion of the liquid storage cavity is formed by the relatively simple structure of the first and second plates cooperating. Therefore, the structure of the liquid storage device provided in this application is relatively simple.

[0007] The integrated component provided in this application embodiment includes a flow channel plate and the above-mentioned liquid storage device. The liquid storage device is fixedly connected to the flow channel plate. The flow channel plate includes a flow channel. At least one of the first external interface and the second external interface of the liquid storage device is in communication with the flow channel.

[0008] The integrated component provided in this application includes a flow channel plate and a liquid storage device. The liquid storage device has a first plate, a second plate, and a third plate. The first plate and the second plate cooperate to form at least a portion of the liquid storage cavity. The third plate is located inside the liquid storage cavity and cooperates with the first plate or the second plate to form at least a portion of the channel. The liquid storage device is fixedly connected to the flow channel plate. The liquid storage device has a plate-like structure, which is beneficial to the simplification of the integrated component structure and, to a certain extent, to the miniaturization of the integrated component.

[0009] The integrated component provided in this application embodiment includes a flow channel plate and the above-mentioned liquid storage device. The flow channel plate includes a flow channel, and the wall portion forming the flow channel is located in the second body and / or the wall portion forming the flow channel is located in the first plate body.

[0010] The integrated component provided in this application includes a flow channel plate and the aforementioned liquid storage device. The flow channel plate includes a flow channel, and the wall portion forming the flow channel is located in the second body and / or the wall portion forming the flow channel is located in the first plate body. The liquid storage device and the flow channel plate share a plate body, so the structure is relatively simple and conducive to the miniaturization of the integrated component.

[0011] This application provides a method for manufacturing a liquid storage device, the method comprising:

[0012] The sheet metal is provided and stamped to form the first sheet, the second sheet, and the third sheet;

[0013] The third plate and the second plate are welded and fixed to form at least a portion of the first assembly;

[0014] The drying package is fixed to any one of the first plate, the second plate, or the third plate.

[0015] The first component is welded and fixed to the first plate.

[0016] The manufacturing method of the liquid storage device provided in this application uses a stamping process to form the first plate, the second plate, and the third plate. The stamping process is relatively mature and the manufacturing cost is relatively low. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the liquid storage device of the present invention;

[0018] Figure 2 for Figure 1 Exploded view of the liquid storage device;

[0019] Figure 3 for Figure 1 Schematic diagram showing the connection relationship between the third plate and the drying package;

[0020] Figure 4 for Figure 1 A diagram from another perspective;

[0021] Figure 5 for Figure 4 Sectional view of AA;

[0022] Figure 6 for Figure 4 Sectional view of BB;

[0023] Figure 7 for Figure 4 Sectional view of CC;

[0024] Figure 8 for Figure 1 A schematic diagram of the structure of the first plate in the middle;

[0025] Figure 9 for Figure 1 Schematic diagram of the structure of the third plate in the middle;

[0026] Figure 10 for Figure 9 Another structural diagram of the third plate in the middle;

[0027] Figure 11 for Figure 1 A schematic diagram of the structure of the intermediate filter;

[0028] Figure 12 A schematic diagram showing the connection relationship between the third plate and the second plate;

[0029] Figure 13 for Figure 12 Sectional view of DD;

[0030] Figure 14 This is a schematic diagram of the integrated component structure;

[0031] Figure 15 for Figure 14 A schematic diagram from another perspective of integrated components;

[0032] Figure 16 for Figure 14 A schematic diagram from another perspective of integrated components;

[0033] Figure 17 for Figure 16 Sectional view of EE;

[0034] Figure 18 This is a structural schematic diagram of another embodiment of the integrated component;

[0035] Figure 19 for Figure 18 A schematic diagram showing the connection between the flow channel plate and the liquid storage device.

[0036] Figure label:

[0037] 100. Liquid storage device; 110. Liquid storage chamber; 10. First plate; 101. Receiving cavity; 102. First mating part; 11. First end; 12. Second end; 13. Flow guide; 14. Flow channel; 15. Protrusion; 131. First group of flow guides; 132. Second group of flow guides; 20. Second plate; 21. First external interface; 22. Second external interface; 201. Second mating part; 202. Fourth mating part; 30. Third plate ; 301, Channel; 302, Third mating part; 31, First groove; 310, First wall part; 32, Channel; 33, First section; 34, Second section; 35, Third section; 36, Oil return hole; 37, Balance hole; 371, Second groove; 4, Baffle; 5, Filter; 51, Filter part; 52, Snap-fit ​​part; 6, Dryer bag; 7, Fixing bracket; 71, Through hole; 8, Fastener; 9, Adapter block; 200, Flow channel plate; 201, Flow channel. Detailed Implementation

[0038] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings; the terms "bottom surface" and "top surface," "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0039] It should be understood that although various information may be described using terms such as first, second, third, fourth, etc., in this application, such information should not be limited to these descriptions. These terms are only used to distinguish information of the same type from each other. Multiple means two or more. Where there is no conflict, the various embodiments in this application can complement each other.

[0040] The liquid storage device and integrated component of the present invention can be implemented in various ways. At least one of these implementations can be applied to a vehicle thermal management system, and at least one of these implementations can be applied to other thermal management systems such as a household thermal management system or a commercial thermal management system. The following description uses a vehicle-use liquid storage device and integrated component as an example, in conjunction with the accompanying drawings.

[0041] Combination Figure 1-19A liquid storage device 100 according to this application includes a first plate 10, a second plate 20, and a third plate 30, wherein the first plate 10 and the second plate 20 are fixedly connected; the liquid storage device 100 includes a liquid storage cavity 110 and a channel 301, wherein a portion of the wall forming the liquid storage cavity 110 is located on the first plate 10, and a portion of the wall forming the liquid storage cavity 110 is located on the second plate 20; the third plate 30 is located in the liquid storage cavity 110, and the third plate 30 is fixedly connected to the first plate 10, partially forming the wall of the channel 301. In the third plate, a portion of the wall forming the channel 301 is located on the first plate 10, or the third plate 30 is fixedly connected to the second plate 20, with a portion of the wall forming the channel 301 located on the third plate 30 and a portion of the wall forming the channel 301 located on the second plate 20; the channel 301 communicates with the liquid storage chamber 110, and the liquid storage device 100 includes a first external interface 21 and a second external interface 22, the first external interface 21 communicating with the liquid storage chamber 110 and the second external interface 22 communicating with the channel 301. It should be noted that the fixed connection method in this application includes welding, threaded connection, bonding, or a combination of both. The liquid storage device 100 of this application is used to store refrigerant in the thermal management system, provide the liquid supply required for the refrigeration system cycle, and ensure the stable operation of the system. The liquid storage device 100 is arranged between the condenser and the evaporator, that is, downstream of the condenser and upstream of the evaporator; or the liquid storage device 100 is arranged downstream of the evaporator, that is, between the downstream of the evaporator and the compressor, to prevent liquid refrigerant from causing liquid slugging on the compressor. The liquid storage device 100 of this application includes a liquid storage cavity 110. The wall portion forming the liquid storage cavity 110 is located in the first plate 10 and partly in the second plate 20. It can be understood that at least part of the liquid storage cavity 110 is sealed and enclosed by the first plate 10 and the second plate 20. At least one of the first plate 10 and the second plate 20 includes a receiving cavity 101. In related technologies, the liquid storage device 100 is generally cylindrical in shape, and the liquid storage cavity 110 formed is relatively deep. The liquid storage device 100 of this application is generally plate-shaped, and can be a regular plate-shaped structure, such as a square, circular, or elliptical structure, or an irregular irregular structure. The plate-shaped structure of the liquid storage device 100 can be designed according to the reserved space of the system and the required performance. The depth of the liquid storage cavity 110 of the plate-shaped structure is relatively shallow and will extend laterally, which matches the shape of the flow channel plate of the current mainstream integrated components, which is conducive to the miniaturization of integrated components. The liquid storage device 100 in the related technology also includes a drain pipe. The main function of the drain pipe is to guide the liquid or gaseous refrigerant into other thermal management components of the thermal management system. The drain pipe is fixed and sealed to the cover plate of the liquid storage device 100, and the structure is relatively complex.In this application, the liquid storage device 100 includes a third plate 30. At least a portion of the channel 301 is formed by the sealing enclosure of the third plate 30 and the first plate 10, or at least a portion of the channel 301 is formed by the sealing enclosure of the third plate 30 and the second plate 20. For example, at least one of the third plate 30 and the second plate 20 has a groove. The third plate 30 and the second plate 20 are welded and fixed together. The wall forming the channel 301 includes the wall forming the groove. The function of the channel 301 is equivalent to that of a drainage tube. The welding and fixing of the third plate 30 and the second plate 20, that is, the enclosure forming part of the channel 301, solves the sealing problem. Compared with related technologies, the structure of this application is relatively simple.

[0042] Combination Figure 1-13The specific embodiments of the liquid storage device 100 are described in detail below. The liquid storage device 100 includes a first plate 10, a second plate 20, and a third plate 30. The first plate 10 and the second plate 20 are stacked along either of their thickness directions. The first plate 10 includes a receiving cavity 101, the opening of which faces the second plate 20. Alternatively, the first plate 10 can be understood as having a recess along its thickness direction to form the receiving cavity 101. The first plate 10 and the second plate 20 are fixedly connected, meaning that the first plate 10 and the second plate 20 together form at least a portion of a liquid storage cavity 110. Specifically, the wall forming the liquid storage cavity 110 includes the wall forming the liquid storage cavity 110 and a portion of the wall of the second plate 20. Of course, the second plate 20 can be a planar structure or a receiving cavity 101 with a recessed structure. It should be noted that the terms "first" and "second" in this application are merely designations for similar features and are interchangeable; that is, structural features on the first plate 10 can be interchanged with structural features on the second plate 20. The first plate 10 and the second plate 20 are fixedly connected. The fixed connection method includes welding, bonding, threaded connection, or a combination of the above. In this embodiment, the first plate 10 and the second plate 20 are fixed by welding. Specifically, the first plate 10 includes a first mating part 102, and the second plate 20 includes a second mating part 201. The first mating part 102 and the second mating part 201 are arranged opposite to each other and fixed by welding. Generally speaking, in order to ensure the stability of welding quality and the sealing effect after welding, the first mating part 102 and the second mating part 201 are basically planar structures, and the first mating part 102 is located around the periphery of the cavity 101. Welding is used to combine the first plate 10 and the second plate 20, which has a simple structure, good sealing effect, and eliminates the need for a sealing ring. There are various processing methods for forming the receiving cavity 101 on the plate, such as die casting, forging, extrusion, machining, or a combination of two or more of the above methods. In this application, at least part of the wall forming the channel 301 and the wall forming the liquid storage cavity 110 are formed by stamping. Simply put, the stamping processing method used in this application processes a recess in at least one of the first plate 10 and the second plate 20 to form the receiving cavity 101. The stamping method results in relatively thin sheet metal parts, and the stamping process equipment is relatively mature, low in cost, and stamping can form relatively complex parts. The first plate 10 and the second plate 20 are made of metal materials, such as steel, stainless steel, aluminum, or aluminum alloys. This application prefers aluminum alloys because aluminum alloys are lightweight and relatively inexpensive.

[0043] The liquid storage device 100 also includes a third plate 30 located within the liquid storage cavity 110. The third plate 30 has a first groove 31, with the opening of the first groove 31 facing the second plate 20. The third plate 30 and the second plate 20 are fixedly connected, preferably by welding, meaning that the third plate 30 and the second plate 20 enclose and seal to form at least a portion of the channel 301. The third plate 30 includes a third mating part 302, and the second plate 20 includes a fourth mating part 202. The third mating parts 302 and the fourth mating parts 202 are arranged opposite to each other and are fixed by welding. Generally, for stable welding quality and a good sealing effect after welding, the third mating parts 302 and the fourth mating parts 202 are basically planar in structure, and the third mating part 302 is located around the periphery forming the first groove 31. Using welding to combine the third plate 30 and the second plate 20 results in a simple structure, good sealing effect, and eliminates the need for a sealing ring. Of course, in other embodiments, the second plate 20 can be a planar structure, and the second plate 20 cooperates with the wall forming the first groove 31 to form at least a portion of the channel 301. Alternatively, the second plate 20 can also be a groove formed by a recessed structure. Or, the third plate 30 can be a planar structure and the second plate 20 can be a groove structure. Of course, the third plate 30 can also cooperate with the first plate 10 to form at least a portion of the channel 301, which is the same as or similar to the above structures, and will not be described in detail here. In this application, at least a portion of the wall forming the channel 301 is formed by stamping. The first plate 10, the second plate 20, and the third plate 30 are formed into a groove structure by stamping. The plates are sealed and fixed by welding. Compared with the structure of the guide tube in the related art, the structure is relatively simple and the manufacturing process is relatively simple.

[0044] The liquid storage device 100 includes a first external interface 21 and a second external interface 22. The first external interface 21 communicates with the liquid storage chamber 110, and the second external interface 22 communicates with the channel 301. The third plate 30 includes a channel 32, one end of which communicates with the liquid storage chamber 110, and the other end of which communicates with the channel 301. Both the first external interface 21 and the second external interface 22 are located on the second plate 20. In one of the thermal management systems, the first external interface 21 is connected to the outlet of the evaporator, and the second external interface 22 is connected to the inlet of the compressor. The gas-liquid two-phase refrigerant from the evaporator enters the liquid storage chamber 110 through the first external interface 21. Due to gravity, the liquid refrigerant sinks to the bottom of the liquid storage chamber 110, while the gaseous refrigerant rises and enters the channel 301 through the channel 32, and then enters the compressor through the second external interface 22. Specifically, as shown... Figure 1As shown, a first direction is defined, which is perpendicular to the depth direction of the receiving cavity 101. Along the first direction, the first plate 10 includes a first end 11 and a second end 12, which are disposed opposite to each other. The third plate 30 includes a first segment 33, a second segment 34, and a third segment 35. The first segment 33 is closer to the first end 11 than the third segment 35, and the second segment 34 is closer to the first end 11 than the third segment 35. The first segment 33 extends towards the third segment 35, and the second segment 34 extends towards the third segment 35. Along the first direction, the channel 32 is located on the first segment 33 near the first end 11. The first external interface 21 and the second external interface 22 are both close to the first end 11. In this embodiment, the structure of the third plate 30 is similar to a U-shape, that is, the channel 301 of the liquid storage device 100 is similar to a U-shaped structure. Therefore, the third segment 35 is located near the second end 12, that is, the third segment 35 is at the bottom of the liquid storage cavity 110. Of course, in other embodiments, the structure of channel 301 is not limited to U-shape, but can also be other shapes. That is, the third plate 30 can also include a fourth or fifth segment, as long as the first segment 33 and the second segment 34 of the third plate 30 are relatively close to the first end 11 relative to the other parts, and the third segment 35 is relatively close to the second end 12 relative to the other parts. It can also be understood that the channel 32 and the second external interface 22 are located at higher points to ensure that the gaseous refrigerant can smoothly enter the channel 301 and flow out from the second external interface 22. In this embodiment, an opening is provided on the third plate 30 near the first end 11 to form the channel 32. The channel 32 is directly connected to the channel 301. Of course, the third plate 30 is defined to include a first wall portion 310, which is arranged opposite to the first groove 31. The channel 32 can also be provided with the first wall portion 310 that forms the first groove 31.

[0045] The gas-liquid two-phase refrigerant enters and exits the storage chamber 110 from the first external interface 21 of the storage device 100. The liquid refrigerant settles at the bottom of the storage chamber 110 due to gravity, while the gaseous refrigerant floats upward and enters the channel 301 through the orifice 32, thus achieving gas-liquid separation. To improve the efficiency of gas-liquid separation, in this application, the storage device 100 includes a guide section 13, which is arranged opposite to the first external interface 21. That is, when the first external interface 21 is located in the second plate 20, the guide section 13 is located in the first plate 10, and when the first external interface 21 is located in the first plate 10, the guide section 13 is located in the second plate 20. The following is a detailed description with the guide section 13 located in the first plate 10. The guide section 13 and the first plate 10 are an integral structure or fixedly connected, and the guide section 13 protrudes towards the second plate 20. Specifically, the flow guide 13 and the first plate 10 are an integral structure. In this application, an integral structure refers to being formed integrally through processes such as extrusion, die casting, forging, and stamping. The first plate 10 forms the flow guide 13 through a stamping process, and the flow guide 13 is a stamped rib structure. Alternatively, the first plate 10 and the flow guide 13 are separate structures, but the first plate 10 and the flow guide 13 are fixedly connected. Multiple flow guides 13 can be provided, and adjacent flow guides 13 are spaced apart. The first plate 10 includes a flow channel 14, and the wall forming the flow channel 14 includes the wall of the adjacent flow guide 13. The gas-liquid two-phase refrigerant enters the liquid storage chamber 110 from the first external interface 21. Under pressure, some of the gas-liquid two-phase refrigerant impacts the first plate 10 and flows along the flow channel 14 on the first plate 10 to the bottom of the liquid storage chamber 110, which is beneficial for the separation of the gas and liquid phases. To extend the flow path, multiple flow guides 13 are arranged in a row, forming a first group of flow guides 131 and a second group of flow guides 132. The extension directions of the first group of flow guides 131 and the second group of flow guides 132 are different. Specifically, the first group of flow guides 131 can have multiple flow guides, defined as first flow guides, which are spaced apart and arranged parallel or approximately parallel. Approximately parallel means that the angle between two adjacent first flow guides is within the range of 0 degrees to 10 degrees. In this embodiment, the extension direction of the first flow guide is basically parallel to the first direction. The second group of flow guides 132 can have multiple flow guides, defined as second flow guides, where one of the second flow guides extends in a different direction than one of the first flow guides, i.e., the first flow guide and the second flow guide are arranged at an angle. In this embodiment, the extension direction of the second flow guide is arranged at an angle to the first direction. This arrangement can relatively extend the flow path, which is more conducive to the separation of the gas and liquid phases. Of course, depending on the size of the reservoir and actual needs, a third or fourth set of flow guides can also be installed.

[0046] The liquid storage device 100 also includes a baffle 4, which is located between the channel 32 and the first external interface 21. The main function of the baffle 4 is to prevent liquid entering the liquid storage chamber 110 from the first external interface 21 from entering the channel 301. In this embodiment, the baffle 4 and the third plate 30 are an integral structure, and the baffle 4 extends towards the first plate 10, and the baffle 4 is formed by a stamping process. In other embodiments, the baffle 4 and the third plate 30 are separate structures, and the baffle 4 is fixedly connected to the third plate 30. Of course, the baffle 4 can also be fixedly connected to the second plate 20.

[0047] The liquid storage device 100 includes an oil return hole 36 and a filter 5. The filter 5 is sealed to the oil return hole 36, which is located on the third plate 30. The filter 5 includes a snap-fit ​​part 52 and a filter part 51, which are integrally formed. Since the liquid deposited at the bottom of the liquid storage chamber 110 also includes lubricating oil used to lubricate the compressor, the lubricating oil should circulate throughout the system during operation. Therefore, an oil return hole 36 is provided in the liquid storage device 100, and the oil return hole 36 communicates with the channel 301. The oil return hole 36 is located on the third plate 30, near the bottom of the liquid storage chamber 110, i.e., near the second end 12. The oil return hole 36 is located on the first wall portion 310 of the third plate 30 and penetrates through the first wall portion 310. The filter 5 is sealed to the oil return hole 36 and mainly filters impurities in the liquid. The filter 5 in this embodiment includes a snap-fit ​​portion 52 and a filter portion 51. At least a portion of the snap-fit ​​portion 52 is located in the oil return hole 36 and is snap-fitted and fixed to the third plate 30. The filter portion 51 and the snap-fit ​​portion 52 are an integral structure. The filter 5 is formed by injection molding with the filter portion 51 as an insert, that is, the snap-fit ​​portion 52 is the plastic part formed after injection molding. In related technologies, the filter 5 is usually tied to the guide tube with a strap. In this application, the filter 5 is snap-fitted and fixed to the third plate 30. Compared with this, the structure of this application is simple and easy to operate.

[0048] The liquid storage device 100 includes a desiccant 6 and a fixing element. The desiccant 6 is located in the liquid storage chamber 110. The desiccant 6 and the fixing frame 7 are fixedly or limitingly connected. The desiccant 6 is used to absorb moisture in the liquid storage chamber 110. Specifically, the fixing frame 7 is integrally structured with the third plate 30, or the fixing frame 7 is fixedly connected to any one of the third plate 30, the second plate 20, or the first plate 10. The fixing frame 7 includes a slot or through hole 71. The liquid storage device 100 includes fasteners 8, some of which are located in the slot or through hole 71. The fasteners 8 fixably connect the desiccant 6 and the fixing frame 7. In this embodiment, the fastener 8 can be a strap, and the desiccant 6 is tied to the fixing frame 7 by the strap. This application achieves the necessary functions using a simple structure.

[0049] The liquid storage device 100 also includes a balancing hole 37, which is disposed on the third plate 30. The main function of the balancing hole 37 is to balance the pressure of the channel 301 and the liquid storage chamber 110 when the compressor starts, so as to avoid negative pressure in the channel 301, which would cause a large amount of liquid refrigerant to enter the compressor and damage it. In some embodiments, the balancing hole 37 is located near the first end 11 of the first wall portion 310 of the third plate 30, and the balancing hole 37 penetrates the first wall portion 310. In this embodiment, in order to prevent the gas-liquid two-phase refrigerant from entering the liquid storage chamber 110 from the first external interface 21 and then entering the channel 301 through the balancing hole 37, a protrusion 15 is provided at a relative position on the first plate 10. The protrusion 15 extends toward the third plate 30 and fits with the third plate 30 with a small clearance to prevent the liquid refrigerant from entering. In some other embodiments, the wall forming the balance hole 37 includes the wall of the third mating part 302 of the third plate 30 and the second plate 20. It is understood that a second groove 371 is formed by stamping in the third mating part 302 and is recessed in the direction of the first plate 10. The wall forming the second groove 371 cooperates with the second plate 20 to form the balance hole 37. In this solution, the balance hole 37 is located on the side away from the first external interface 21, which effectively prevents the entry of liquid refrigerant.

[0050] In some embodiments, the liquid storage device 100 further includes a transition block 9, which is fixedly connected to the second plate 20. The transition block 9 is mainly used to connect the liquid storage device 100 to other thermal management components of the thermal management system. The transition block 9 has a connection channel 301, one of which is connected to the first external interface 21 of the liquid storage device 100, and the other of which is connected to the second external interface 22.

[0051] In one embodiment of this application, multiple functional components such as the fixing bracket 7 for fixing the desiccant, the oil return hole 36, the balance hole 37, and the baffle 4 are integrated on the third plate 30, and the third plate 30 is integrally formed by stamping. In contrast, the liquid storage device 100 in this embodiment has a simple structure, which is more conducive to miniaturization and reduces costs to a certain extent.

[0052] The manufacturing method of the liquid storage device 100 of this application includes: providing a plate,

[0053] A sheet metal is provided and stamped to form a first plate 10, a second plate 20, and a third plate 30; wherein the first plate 10 includes a receiving cavity 101 and a guide portion 13, the second plate 20 includes a first external interface 21 and a second external interface 22, and the third plate 30 includes a first groove 31, a baffle 4, an oil return hole 36, and a balance hole 37.

[0054] The third plate 30 and the second plate 20 are welded and fixed to form at least a portion of the first assembly;

[0055] The drying package 6 is fixed to any one of the first plate 10, the second plate 20, or the third plate 30;

[0056] The first component is welded and fixed to the first plate 10.

[0057] In the manufacturing method of the liquid storage device 100 in this scheme, the third plate 30 and the second plate 20 are first welded and fixed. Tunnel furnace and vacuum furnace welding can be used, which has a relatively high productivity. Then, the drying package 6 is fixed. Due to the material of the drying package 6, it cannot be welded in the furnace. After the drying package 6 is fixed, the first plate 10 is welded and fixed. At this time, laser welding, friction welding, argon arc welding and other processes with low heat transfer can be selected. Using the manufacturing method of this scheme, there is no need to set up separate mounting holes and plugs for installing the drying package 6. The overall structure of the liquid storage device in this scheme is relatively simple.

[0058] This application also provides an integrated component, such as Figure 1-17 As shown, the integrated component includes the aforementioned liquid storage device 100 and flow channel plate 200. The liquid storage device 100 is fixedly connected to the flow channel plate 200, which includes a flow channel 201. At least one of the first external interface 21 and the second external interface 22 of the liquid storage device 100 communicates with the flow channel 201. Specifically, the second plate 20 is disposed opposite to and welded to the flow channel plate 200. The first external interface 21 communicates with one of the flow channels 201, and the second external interface 22 communicates with the other of the flow channels 201. It can be simply understood that at least a portion of the liquid storage device 100 is laid flat on the flow channel plate 200, that is, the stacking direction of the liquid storage device 100 plates is the same as the thickness direction of the flow channel plate 200. This arrangement can optimize the volume of the integrated component to a certain extent.

[0059] In another embodiment of the integrated component, such as Figure 1-13 , Figure 18-19 As shown, the integrated component includes a flow channel plate 200 and a liquid storage device 100. The flow channel plate 200 includes a flow channel 201, with the wall portion forming the flow channel 201 located in the second body and / or the wall portion forming the flow channel 201 located in the first plate 10. Simply put, at least one plate of the liquid storage device 100 is shared with the flow channel plate 200; that is, the flow channel plate 200 integrates the function of part of the liquid storage chamber 110 in the liquid storage device 100. This structure is more conducive to the miniaturization of the integrated component.

[0060] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and controls without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A liquid storage device, characterized in that, The device includes a first plate (10), a second plate (20), and a third plate (30), with the first plate (10) and the second plate (20) fixedly connected. The liquid storage device (100) includes a liquid storage cavity (110) and a channel (301), with a portion of the wall forming the liquid storage cavity (110) located on the first plate (10) and a portion of the wall forming the liquid storage cavity (110) located on the second plate (20). The third plate (30) is located in the liquid storage cavity (110) and is fixedly connected to the first plate (10), with a portion of the wall forming the channel (301) located on the third plate (30). The wall forming the channel (301) is located on the first plate (10), or the third plate (30) is fixedly connected to the second plate (20), the wall forming the channel (301) is located on the third plate (30), and the wall forming the channel (301) is located on the second plate (20); the channel (301) and the liquid storage chamber (110) are connected, and the liquid storage device (100) includes a first external interface (21) and a second external interface (22), the first external interface (21) is connected to the liquid storage chamber (110), and the second external interface (22) is connected to the channel (301).

2. The liquid storage device according to claim 1, characterized in that, The wall forming the channel (301) is at least partially formed by stamping, and the wall forming the liquid storage cavity (110) is at least partially formed by stamping.

3. The liquid storage device according to claim 2, characterized in that, The first plate (10) includes a receiving cavity (101), the opening of which faces the second plate (20). The first plate (10) and the second plate (20) are welded and fixed. The wall forming the liquid storage cavity (110) includes the wall forming the receiving cavity (101) and part of the wall of the second plate (20). The third plate (30) includes a first groove (31), the opening of which faces the second plate (20). The third plate (30) is welded and fixed to the second plate (20). The third plate (30) includes a channel (32), one end of which communicates with the liquid storage cavity (110) and the other end of which communicates with the channel (301). The first external interface (21) and the second external interface (22) are both located on the second plate (20).

4. The liquid storage device according to claim 3, characterized in that, A first direction is defined, which is perpendicular to the depth direction of the receiving cavity (101). Along the first direction, the first plate (10) includes a first end (11) and a second end (12). The third plate (30) includes a first segment (33), a second segment (34), and a third segment (35). The first segment (33) is closer to the first end (11) relative to the third segment (35). The second segment (34) is closer to the first end (11) relative to the third segment (35). The first segment (33) extends toward the third segment (35). The second segment (34) extends toward the third segment (35). Along the first direction, the channel (32) is located on the first segment (33) near the first end (11). The first external interface (21) and the second external interface (22) are both close to the first end (11).

5. The liquid storage device according to any one of claims 1-4, characterized in that, The liquid storage device (100) includes a flow guide (13), which is located on the first plate (10). The flow guide (13) and the first plate (10) are integral or fixedly connected. The flow guide (13) is disposed opposite to the first external interface (21), and the flow guide (13) protrudes toward the second plate (20).

6. The liquid storage device according to claim 5, characterized in that, Multiple flow guides (13) are provided, and adjacent flow guides (13) are spaced apart; the first plate (10) includes a flow channel (14), and the wall forming the flow channel (14) includes the wall of the adjacent flow guide (13).

7. The liquid storage device according to claim 6, characterized in that, Multiple flow guides (13) are arranged in a row, defining a first group of flow guides (131) and a second group of flow guides (132), wherein the extension direction of the first group of flow guides (131) is different from the extension direction of the second group of flow guides (132).

8. The liquid storage device according to claim 1, characterized in that, The liquid storage device (100) includes a baffle (4), which is integral with the third plate (30), or the baffle (4) is fixedly connected to the third plate (30), or the baffle (4) is fixedly connected to the second plate (20); the baffle (4) is located between the hole (32) of the third plate (30) and the first external interface (21), and the baffle (4) extends toward the first plate (10).

9. The liquid storage device according to claim 1, characterized in that, The liquid storage device (100) includes an oil return hole (36) and a filter (5). The filter (5) is sealed to the oil return hole (36). The oil return hole (36) is located on the third plate (30). The filter (5) includes a snap-fit ​​part (52) and a filter part (51). The filter part (51) and the snap-fit ​​part (52) are an integral structure.

10. The liquid storage device according to claim 1, characterized in that, The liquid storage device (100) includes a drying package (6) and a fixing frame (7). The drying package (6) is located in the liquid storage chamber (110), and the drying package (6) and the fixing frame (7) are fixed or limitedly connected.

11. The liquid storage device according to claim 10, characterized in that, The fixing frame (7) is integral with the third plate (30), or the fixing frame (7) is fixedly connected to any one of the third plate (30), the second plate (20), and the first plate (10); the fixing frame (7) includes a slot or through hole (71), the liquid storage device (100) includes a fastener (8), some of the fasteners (8) are located in the slot or through hole (71), and the fasteners (8) are fixedly connected to the drying package (6) and the fixing frame (7).

12. An integrated component, characterized in that, The device includes a flow channel plate (200) and a liquid storage device (100) as described in any one of claims 1-11. The liquid storage device (100) is fixedly connected to the flow channel plate (200). The flow channel plate (200) includes a flow channel (201). At least one of the first external interface (21) and the second external interface (22) of the liquid storage device (100) is in communication with the flow channel (201).

13. The integrated component according to claim 12, characterized in that, The second plate (20) is disposed opposite to the flow channel plate (200) and welded and fixed. The first external interface (21) is connected to one of the flow channels (201), and the second external interface (22) is connected to the other of the flow channels (201).

14. An integrated component, characterized in that, Includes a flow channel plate, a liquid storage device (100) according to any one of claims 1-11, wherein the flow channel plate (200) includes a flow channel (201), the wall portion forming the flow channel (201) is located in the second plate body (20), and / or the wall portion forming the flow channel (201) is located in the first plate body (10).

15. A method for manufacturing a liquid storage device, characterized in that, Its manufacturing methods include: Sheet metal is provided and stamped to form a first sheet (10), a second sheet (20), and a third sheet (30); The third plate (30) and the second plate (20) are welded and fixed to form at least a portion of the first assembly; The drying package (6) is fixed to any one of the first plate (10), the second plate (20) or the third plate (30); The first component is welded and fixed to the first plate (10).

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