Integrated device

Abstract

Provided in one embodiment of the present application is an integrated device. The integrated device has a liquid storage cavity, and comprises a first flow channel and a second flow channel. In a first direction, the first flow channel is located on the side of a housing away from a cover. In the first direction, at least part of a wall forming the second flow channel overlaps a wall forming the liquid storage cavity, that is to say, at least part of the second flow channel is located on the peripheral side of the liquid storage cavity. Such arrangements make full use of the space on the peripheral side of the liquid storage cavity to arrange the flow channels, thereby facilitating the compact design of the integrated device.

Description

An integrated device

[0001] This application claims priority to the following two Chinese patent applications, the entire contents of which are incorporated herein by reference:

[0002] 1. Submitted to the China Patent Office on December 28, 2023, application number 202323629523.6, invention name “A connector and integrated device”;

[0003] 2. Submitted to the China Patent Office on April 3, 2024, application number 202420687393.7, and the invention name is "An integrated device". Technical Field

[0004] The present application relates to the field of thermal management technology, and in particular to an integrated device for a vehicle. Background Art

[0005] The thermal management system includes multiple functional components, which can be integrated in the same shell. The components are connected through channels in the shell. When the channels in the shell are set on the same side, due to the complex connectivity relationship of the channels, it is necessary to set up multi-layer plates to splice two by two to form channels, which makes the shell structure complex and occupies a large space.

[0006] Utility Model Content

[0007] The present application provides an integrated device with a compact structure.

[0008] To achieve the above objectives, one embodiment of the present application adopts the following technical solution:

[0009] An integrated device includes a shell, a cover and a connecting portion, wherein the integrated device has a liquid storage cavity, and the walls forming the liquid storage cavity include the walls of the shell and the walls of the cover. The integrated device has a flow channel, and the flow channel includes a first flow channel and a second flow channel. A first direction is defined as the direction in which the shell is connected to the cover. Along the first direction, the first flow channel is located on the side of the shell away from the cover. Along the first direction, at least a portion of the wall forming the second flow channel overlaps with the wall forming the liquid storage cavity.

[0010] One embodiment of the present application provides an integrated device, which has a liquid storage cavity. The integrated device includes a first flow channel and a second flow channel. Along the first direction, the first flow channel is located on the side of the shell away from the cover body. Along the first direction, at least part of the wall forming the second flow channel overlaps with the wall forming the liquid storage cavity, that is, at least part of the second flow channel is located on the peripheral side of the liquid storage cavity. This arrangement makes full use of the space on the peripheral side of the liquid storage cavity to arrange the flow channels, which is conducive to the compact design of the integrated device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] FIG1 is a schematic diagram of the three-dimensional structure of an embodiment of the integrated device of the present application;

[0012] FIG2 is a schematic structural diagram of the integrated device in FIG1 from another perspective;

[0013] FIG3 is a schematic diagram of the connection structure of the housing and the cover in FIG1 ;

[0014] FIG4 is a schematic structural diagram of the housing and the cover in FIG3 from another perspective;

[0015] FIG5 is a schematic structural diagram of the housing and the cover in FIG3 from a third perspective;

[0016] FIG6 is a cross-sectional view AA in FIG5;

[0017] Figure 7 is a sectional view BB in Figure 5;

[0018] Figure 8 is a DD cross-sectional view in Figure 5

[0019] FIG9 is a schematic diagram of the reverse filling structure of the first flow channel and the second flow channel of the integrated device in FIG1 ;

[0020] FIG10 is a schematic diagram of a partially exploded structure of the installation portion of the first multi-way valve in the integrated device of FIG1 ;

[0021] FIG11 is a schematic diagram of the exploded structure of the housing and the first connecting portion of the integrated device in FIG10 ;

[0022] FIG12 is a schematic diagram of a partially exploded structure of the installation portion of the second multi-way valve in the integrated device of FIG1 ;

[0023] FIG13 is a schematic diagram of the exploded structure of the housing and the second connecting portion of the integrated device in FIG12 ;

[0024] FIG14 is a schematic diagram of FIG13 from another perspective;

[0025] FIG15 is a schematic diagram of a partially exploded structure of the pump installation portion of the integrated device in FIG1 .

[0026] Description of the accompanying drawings: 100, integrated device; 51, housing; 52, cover; 53, liquid storage chamber; 54, end cap; 10, flow channel; 13, first flow channel; 11, first sub-flow channel; 12, second sub-flow channel; 130, third sub-flow channel; 131, first connecting port; 132, second connecting port; 134, fourth sub-flow channel; 135, fifth sub-flow channel; 14, second flow channel; 600, first side flow channel; 700, second side flow channel; 20, interface portion; 21, first interface portion; 22, second interface portion; 231, first pump interface portion; 232, second pump interface portion; 233, third pump interface portion; 24, third interface portion; 25, fourth interface portion; 26, fifth interface portion; 27, sixth interface portion; 28, seventh interface portion; 30. First multi-way valve; 31. First valve port; 32. Second valve port; 33. Fifth valve port; 40. Second multi-way valve; 41. Third valve port; 42. Fourth valve port; 80. Pump; 81. First pump; 82. Second pump; 83. Third pump; 18. Mounting portion; 181. First pump mounting portion; 182. Second pump mounting portion; 183. Third pump mounting portion; 60. First connecting portion; 70. Second connecting portion; 61. First branch flow channel; 62. Second branch flow channel; 63. Fifth branch flow channel; 71. Third branch flow channel; 72. Fourth branch flow channel; 76. Sixth branch flow channel; 77. Seventh branch flow channel; 78. Eighth branch flow channel; 79. Ninth branch flow channel; 73. Tenth branch flow channel; 74. Eleventh branch flow channel; 75. Twelfth branch flow channel; 730, first protrusion; 731, first unit protrusion; 732, second unit protrusion; 740, first groove; 15, second protrusion; 151, third unit protrusion; 152, fourth unit protrusion; 16, second groove. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0028] The integrated device of the present application is used in thermal management systems, especially vehicle thermal management systems, and can also be used in commercial, household, energy storage and other thermal management systems.

[0029] Example 1

[0030] As shown in Figures 1-15, one embodiment of the present application provides an integrated device 100, which includes a shell 51, a cover 52, and an end cap 54. The shell 51 and the cover 52 are fixedly connected or positionally connected, for example, they can be welded, bonded, snap-fitted, etc. In this embodiment, the shell 51 and the cover 52 are welded. The shell 51 is a roughly cubic thin-walled structure with an opening at the top. The cover 52 can cover the opening of the shell 51. The integrated device 100 has a liquid storage chamber 53. The walls forming the liquid storage chamber 53 include the walls of the shell 51 and the walls of the cover 52. A filling port is provided on the side of the cover 52 away from the shell 51. The end cap 54 is detachably connected to the cover 52, for example, by threading. The end cap 54 can cover the filling port. A medium can be filled into the liquid storage chamber 53 through the filling port of the cover 52. The medium can be a coolant.

[0031] As shown in Figures 10-15, the integrated device 100 includes a multi-way valve and a connecting portion. Specifically, the multi-way valve includes a first multi-way valve 30 and a second multi-way valve 40. The connecting portion includes a first connecting portion 60 and a second connecting portion 70. The connecting portion is separately provided with the housing 51 and is fixedly connected or limitably connected to the housing 51. In this embodiment, the connecting portion is welded to the housing 51. The first multi-way valve 30 is fixedly connected or limitably connected to the housing 51 via the first connecting portion 60, and the second multi-way valve 40 is fixedly connected or limitably connected to the housing 51 via the second connecting portion 70. Specifically, the first multi-way valve 30 is bolted to the first connecting portion 60, and the second multi-way valve 40 is bolted to the second connecting portion 70. In a specific embodiment, the first multi-way valve 30 can be a three-way valve having a first valve port 31, a second valve port 32, and a fifth valve port 33. The second multi-way valve 40 can be a nine-way valve having a third valve port 41, a fourth valve port 42, and seven other valve ports. In other embodiments, at least one multi-way valve of the integrated device 100 can be directly bolted to the housing 51 , and the integrated device 100 includes only one connection portion.

[0032] As shown in FIG15 , the housing 51 includes a mounting portion 18, and the integrated device 100 includes pumps 80. In this embodiment, there are three mounting portions 18, corresponding to three pumps 80. At least some of the pumps 80 are located within the cavities of the mounting portions 18. The pumps 80 are fixedly connected or positionally engaged with the corresponding mounting portions 18, and are capable of providing power to the fluid flowing through the channels of the pumps 80. The first pump 81 corresponds to the first pump mounting portion 181, the second pump 82 corresponds to the second pump mounting portion 182, and the third pump 83 corresponds to the third pump mounting portion 183.

[0033] As shown in Figures 1-15, the integrated device 100 has a flow channel 10, and the integrated device 100 includes an interface portion 20, which is used to connect other components of the thermal management system, such as a power battery, a motor assembly, an electric heater, a heater core, a radiator, a battery coolant, etc. In this embodiment, the integrated device 100 is provided with ten interface portions 20. At least part of the flow channel 10 is connected to the opening of the interface portion 20, so that the medium in the integrated device 100 flows through the flow channel 10 and the opening of the interface portion 20 to other components of the thermal management system, thereby enabling the integrated device 100 to form a coolant circuit with other components of the thermal management system to achieve cooling or heating of the thermal management system. In addition, at least part of the flow channel 10 is connected to the cavity of the mounting portion 18 and the valve port of the multi-way valve, so that the integrated device 100 can pump out the medium flowing out of the valve port of the multi-way valve, or pump the medium to the valve port of the multi-way valve. At least part of the flow channel 10 is connected to the valve port of the first multi-way valve 30 and the valve port of the second multi-way valve 40, so that the integrated device 100 can switch the coolant circuit by switching the valve ports of the multi-way valves.

[0034] In this embodiment, the flow channel 10 includes a first flow channel 13. The housing 51 is integrally injection molded. The first flow channel 13 is located in the housing 51, or in other words, the housing 51 has the first flow channel 13. Specifically, the wall forming the first flow channel 13 includes the wall of the housing 51. As shown in FIG1 , a first direction G is defined as the direction in which the housing 51 and the cover 52 are connected. Along the first direction G, the housing 51 and the cover 52 are close to each other and welded together. In other embodiments, the housing 51 and the cover 52 may be close to each other and then threaded together, with the threaded connection direction being circumferentially around the first direction G. As shown in Figures 1-4, the first flow channel 13 is located on the side of the housing 51 away from the cover 52. At least a portion of the first flow channel 13 extends along the bottom surface of the housing 51. Along the first direction G, the first flow channel 13 includes two flow channel layers located at different heights. The first layer includes multiple parallel flow channels, and the second layer includes three branch flow channels. The second flow channel layer is located on the side of the housing 51 away from the cover 52 compared to the first flow channel layer. Similarly, the mounting portion 18 is located on the side of the housing 51 away from the cover 52 relative to the first sub-flow channel 11. One side of the cavity of the mounting portion 18 is connected to at least a portion of the parallel flow channels, and the other side is connected to the branch flow channels. The double-layer arrangement of the first flow channel 13 facilitates the installation of the bottom-inlet and side-outlet pump 80. In this embodiment, the branch flow channels are all connected to the outlet of the pump 80, and the branch flow channels are directly connected to the opening of the interface portion 20 of the integrated device 100. The combined arrangement of the parallel flow channels and the branch flow channels makes the structure of the first flow channel 13 simple, so that the first flow channel 13 can be formed by integral injection molding of the housing 51.

[0035] Specifically, the first flow channel layer includes a first sub-channel 11 and a second sub-channel 12. Both the first sub-channel 11 and the second sub-channel 12 are straight-through channels. At least a portion of the first sub-channel 11 and at least a portion of the second sub-channel 12 are arranged parallel to each other. A direction perpendicular to the first direction G is defined as a second direction S. The first sub-channel 11 extends along the second direction S. In this embodiment, along the second direction S, at least a portion of the first multi-way valve 30 is located on one side of the housing 51, and at least a portion of the second multi-way valve 40 is located on the opposite side of the housing 51. In other embodiments, the second direction S can be arranged at an angle of 0-90 degrees to the first direction G. The installation direction of the first multi-way valve 30 and the installation direction of the second multi-way valve 40 with respect to the housing 51 can also be arranged at an angle, for example, at an angle of 120 degrees. The specific connection angle can be adaptively adjusted according to the external structure of the integrated device 100.

[0036] As shown in Figures 10-14, one end of the first sub-channel 11 is connected to the first valve port 31 of the first multi-way valve 30, the other end of the first sub-channel 11 is connected to the third valve port 41 of the second multi-way valve 40, one end of the second sub-channel 12 is connected to the second valve port 32 of the first multi-way valve 30, and the other end of the second sub-channel 12 is connected to the fourth valve port 42 of the second multi-way valve 40. In this embodiment, specifically, as shown in Figures 10-14, the first valve port 31 of the first multi-way valve 30 is connected to the first branch channel 61, the third valve port 41 of the second multi-way valve 40 is connected to the third branch channel 71, the first branch channel 61 is connected to one end of the first sub-channel 11, and the third branch channel 71 is connected to the other end of the first sub-channel 11. Similarly, the second valve port 32 of the first multi-way valve 30 and the fourth valve port 42 of the second multi-way valve 40 are connected by means of a portion of the second channel 14 and a portion of the first channel 13. The first sub-channel 11 and the second sub-channel 12 are both straight-through channels. They are arranged parallel to each other, minimizing the channel path connecting the multi-way valve and facilitating a compact layout of the integrated device 100. The first sub-channel 11 and the second sub-channel 12 are adjacent to each other, facilitating the provision of a connecting component X between the first sub-channel 11 and the second sub-channel 12. In this embodiment, at least a portion of the first sub-channel 11 is located on one side of the connecting component X, and at least a portion of the second sub-channel 12 is located on the opposite side of the connecting component X. The connecting component X enables unidirectional connection between the second sub-channel 12 and the first sub-channel 11. The connecting component X is integrally injection-molded with the housing 51, resulting in a simple structure. Furthermore, the second sub-channel 12 communicates with the cavity corresponding to the first pump mounting portion 181 corresponding to the first pump 81.

[0037] The first channel layer also includes a third sub-channel 130. At least a portion of the third sub-channel 130 is a straight channel, and at least a portion of the third sub-channel 130 is arranged substantially parallel to a portion of the first sub-channel 11. The third sub-channel 130 has a first connection port 131 and a second connection port 132. The third sub-channel 130 communicates with the liquid storage chamber 53 through the first connection port 131, and communicates with the cavity of the second pump mounting portion 182 through the second connection port 132. The medium can enter the liquid storage chamber 53 from the third sub-channel 130, and the medium can also enter the third sub-channel 130 from the liquid storage chamber 53. The first connection port 131 and the second connection port 132 are at least partially arranged opposite each other, which further facilitates the integrated device 100 to replenish the circuit including the second pump 82. The housing 51 is also provided with another third sub-channel 130 corresponding to the third pump 83. The structure is similar and will not be described in detail here.

[0038] The first channel layer also includes a fourth sub-channel 134, at least a portion of which is a straight channel. The fourth sub-channel 134 is arranged substantially parallel to the first sub-channel 11. Specifically, the fourth sub-channel 134 comprises two channels, each located at the outermost sides of the parallel channels in the first layer. The interface portion 20 includes a first interface portion 21 and a second interface portion 22. The first interface portion 21, the second interface portion 22, and the first multi-way valve 30 are located on the same side of the integrated device 100. Along the second direction S, one end of the fourth sub-channel 134 communicates with the corresponding valve port of the second multi-way valve 40, and the other end of the fourth sub-channel 134 extends to the side where the first multi-way valve 30 is installed. Specifically, one end of one of the fourth sub-channels 134 communicates with the ninth branch channel 79 and the other end communicates with the opening of the first interface portion 21. The other fourth sub-channel 134 communicates with the sixth branch channel 76 and the other end communicates with the opening of the second interface portion 22. The fourth sub-flow channel 134 can guide the medium flowing through the valve port of the second multi-way valve 40 to other locations, so as to facilitate connection with other components in the thermal management system.

[0039] The second flow channel layer includes a fifth sub-channel 135. As shown in FIG1-15 , the fifth sub-channel 135 communicates with the cavity of the mounting portion 18 corresponding to the pump 80. In this embodiment, there are three fifth sub-channels 135, corresponding to the interface portion 20 including a first pump interface portion 231, a second pump interface portion 232, and a third pump interface portion 233. The openings of the first pump interface portion 231, the second pump interface portion 232, and the third pump interface portion 233 all face a direction perpendicular to the first direction G and face different directions.

[0040] As shown in Figures 3-5 and 10-14, the flow channel 10 of the integrated device 100 includes a second flow channel 14, which is used to connect the valve port of the multi-way valve with other flow channels or the interface portion 20. The walls forming at least a portion of the second flow channel 14 include the walls of the housing 51 and the walls of the connecting portion. A first plane L is defined, which is an extension plane of the substantially plate-shaped connecting portion. The first plane L is perpendicular to the second direction S, or in other words, the first plane L is parallel to the first direction G. The projections of at least a portion of the wall forming the second flow channel 14 and the wall forming the liquid storage chamber 53 on the first plane L overlap. In other words, along the first direction G, at least a portion of the wall forming the second flow channel 14 and the wall forming the liquid storage chamber 53 overlap. That is, along the thickness direction, one side of the portion of the wall of the housing 51 defines at least a portion of the second flow channel 14, and the other side defines at least a portion of the liquid storage chamber 53. In other words, at least a portion of the second flow channel 14 is located around the liquid storage chamber 53. This arrangement fully utilizes the space around the liquid storage chamber 53, simplifies the layout of the flow channel 10 of the integrated device 100, and facilitates a compact design of the integrated device. The flow channels of the integrated device 100 include the second flow channel 14 and the first flow channel 13. The arrangement of the flow channels 10 of the integrated device 100 enhances the functionality of the integrated device 100 and facilitates the installation of a multi-way valve with a large number of valve ports and a pump 80.

[0041] As shown in Figures 10-14, the second flow channel 14 includes a first side flow channel 600, which includes a first branch flow channel 61, a second branch flow channel 62, and a fifth branch flow channel 63. One end of the first branch flow channel 61 is connected to the first sub-flow channel 11, and the other end of the first branch flow channel 61 is connected to the first valve port 31; one end of the second branch flow channel 62 is connected to the second sub-flow channel 12, and the other end of the second branch flow channel 62 is connected to the second valve port 32; one end of the fifth branch flow channel 63 is connected to the fifth valve port 33, and the other end of the fifth branch flow channel 63 is connected to the interface of the third interface portion 24. In this embodiment, the three valve ports of the first multi-way valve 30 are arranged linearly, and the two valve ports on both sides can be arranged opposite to the first sub-flow channel 11 and the second sub-flow channel 12 located at the bottom of the shell 51. Therefore, in this embodiment, the first branch flow channel 61 and the second branch flow channel 62 can be configured as straight-through through-hole flow channels to facilitate connecting the valve ports and the first flow channel 13. Along the second direction S, at least a portion of the wall forming the fifth branch channel 63 overlaps with the projection of the wall forming the liquid storage chamber 53 on the first plane L. In other words, along the first direction G, at least a portion of the wall forming the fifth branch channel 63 overlaps with the wall forming the liquid storage chamber 53. In other words, at least a portion of the fifth branch channel 63 extends along the peripheral side wall of the housing 51. In this embodiment, a section of the fifth branch channel 63 extends to another peripheral side wall of the housing 51, and the fifth branch channel 63 communicates with the third interface portion 24 located on the other peripheral side wall. This arrangement can guide the opening of the fifth branch channel 63 to the side of the housing 51 adjacent to the side on which the first multi-way valve 30 is installed, making the layout of the interfaces of the integrated device 100 more flexible.

[0042] The second flow channel 14 of the integrated device 100 includes a second side flow channel 700, which includes a third branch flow channel 71 and a fourth branch flow channel 72. One end of the third branch flow channel 71 is connected to the first sub-flow channel 11, and the other end of the third branch flow channel 71 is connected to the third valve port 41. The fourth branch flow channel 72 is connected to the second sub-flow channel 12, and the fourth branch flow channel 72 is connected to the fourth valve port 42. The second side flow channel 700 also includes a sixth branch flow channel 76, a seventh branch flow channel 77, an eighth branch flow channel 78, a ninth branch flow channel 79, a tenth branch flow channel 73, an eleventh branch flow channel 74, and a twelfth branch flow channel 75, which correspond one-to-one to the other seven valve ports of the second multi-way valve 40. Along the second direction S, at least part of the wall forming the second side channel 700 overlaps with the projection of the wall forming the liquid storage chamber 53 on the first surface L, or, along the first direction G, at least part of the wall forming the second side channel 700 overlaps with the wall forming the liquid storage chamber 53. Specifically, along the second direction S, at least part of the wall forming the seventh branch channel 77, the eighth branch channel 78, and the ninth branch channel 79 overlaps with the projection of the wall forming the liquid storage chamber 53 on the first surface L. In other words, the seventh branch channel 77, the eighth branch channel 78, and part of the ninth branch channel 79 extend on the peripheral side wall of the shell 51 that forms the liquid storage chamber 53. Along the second direction S, at least a portion of the wall forming the second side channel 700 overlaps with the projection of the mounting portion 18 on the first plane L. In other words, along the first direction G, at least a portion of the wall forming the second side channel 700 overlaps with the mounting portion 18. Specifically, at least a portion of the walls forming the third branch channel 71, the fourth branch channel 72, the eleventh branch channel 74, and the sixth branch channel 76 all overlap with the projection of the mounting portion 18 on the first plane L. The second side channel 700 is arranged to fully utilize the space surrounding the liquid storage chamber 53 and the space surrounding the pump mounting portion 18, making the integrated device 100 compact.

[0043] The interface portion 20 includes a fourth interface portion 25, a fifth interface portion 26, a sixth interface portion 27, and a seventh interface portion 28. The sixth and ninth branch channels 76 and 79 are respectively connected to the corresponding first channel 13. The seventh branch channel 77 is connected to the interface of the fourth interface portion 25. The eighth branch channel 78 is connected to the interface of the fifth interface portion 26. One end of the tenth branch channel 73 is connected to the valve port corresponding to the second multi-way valve 40. The other end of the tenth branch channel 73 is connected to the third sub-channel 130 corresponding to the second pump 82. The other end of the eleventh branch channel 74 is connected to the third sub-channel 130 corresponding to the third pump 83. The eleventh branch channel 74 is also connected to the interface of the sixth interface portion 27. The twelfth branch channel 75 is connected to the interface of the seventh interface portion 28. The fourth interface portion 25, the fifth interface portion 26, and the second multi-way valve 40 are located on the same side. Along the first direction G, the openings of the sixth and seventh interface portions 27 and 28 face away from the liquid storage chamber 53.

[0044] The provision of the second connecting portion 70 enables at least some of the circumferentially arranged valve ports of the second multi-way valve 40 to communicate with multiple flow channels extending along the same plane at the bottom of the housing 51, allowing the remaining valve ports of the second multi-way valve 40 to extend to their respective corresponding interface portions 20 through the second side flow channels 700. The provision of the second connecting portion 70 facilitates the installation of the second multi-way valve 40 having multiple valve ports.

[0045] In this embodiment, as shown in Figures 14 and 15, the shape of the first connecting portion 60 is not strictly limited; for example, the first connecting portion 60 is generally plate-shaped; the first connecting portion 60 is sealed to the housing 51 by screws or welding, and the wall forming at least a portion of the first side channel 600 includes the wall of the housing 51 and the wall of the first connecting portion 60, or the wall forming at least a portion of the fifth branch channel 63 includes the wall of the housing 51 and the wall of the first connecting portion 60. In this embodiment, the shape of the second connecting portion 70 is not strictly limited; for example, the second connecting portion 70 is generally plate-shaped; the second connecting portion 70 is sealed to the housing 51 by screws or welding, and the wall forming at least a portion of the second side channel 700 includes another portion of the wall of the housing 51 and the wall of the second connecting portion 70.

[0046] Specifically, taking the fourth branch flow channel 72 as an example, the specific structure of the shell 51 and the connecting part being assembled to form at least part of the second flow channel 14 is introduced: the shell 51 and the connecting part both include flow channel grooves, wherein the second connecting part 70 includes a first protrusion 730, the second connecting part 70 has a first groove 740, the shell 51 includes a second protrusion 15, the shell 51 has a second groove 16, the first protrusion 730 and the second protrusion 15 are sealed and welded, the first groove 740 is connected to the second groove 16, forming at least part of the wall of the third branch flow channel 71 including the wall of the first groove 740 and the wall of the second groove 16, forming at least part of the wall of the fourth branch flow channel 72 including another part of the wall of the first groove 740 and another part of the wall of the second groove 16. The first protrusion 730 includes a first unit protrusion 731 and a second unit protrusion 732, and a portion of the side wall of the first unit protrusion 731 and a portion of the side wall of the second unit protrusion 732 form at least a portion of the wall of the first groove 740; the second protrusion 15 includes a third unit protrusion 151 and a fourth unit protrusion 152, and a portion of the side wall of the third unit protrusion 151 and a portion of the side wall of the fourth unit protrusion 152 form at least a portion of the wall of the second groove 16.

[0047] In other embodiments, at least one of the housing 51 and the connecting portion includes a flow channel groove, and the walls forming at least a portion of the second flow channel 14 include the walls of the flow channel groove. For example, the flow channel groove of the housing 51 is welded to the flat-plate connecting portion to similarly form at least a portion of the second flow channel 14. In this embodiment, the flow channel groove includes a first groove 740 and a second groove 16, and the walls forming at least a portion of the second flow channel 14 include the walls of the first groove 740 and the walls of the second groove 16. This makes both the housing 51 and the connecting portion easier to process.

[0048] The first flow channel 13 located at the bottom of the shell 51 can be formed by integral injection molding of the shell 51, and the second flow channel 14 located on the peripheral side of the shell 51 is formed by splicing and welding the shell 51 and the first connecting part 60 or the second connecting part 70. Compared with the previous structure in which the multi-layer flow channel structure is located at the bottom of the shell 51, the integrated device 100 of this embodiment has a simple structure and a simple manufacturing process.

[0049] The technical features of the above embodiments may be combined in any manner. To simplify the description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there are no conflicts in the combination of these technical features, they should be considered to be within the scope of this specification. When technical features in different embodiments are reflected in the same figure, it can be regarded as that figure also discloses the combination examples of the various embodiments involved.

[0050] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person skilled in the art could make numerous variations and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application.

Claims

1. An integrated device, comprising a housing (51), a cover (52) and connecting parts (60, 70). The integrated device has a liquid storage cavity (53). The walls forming the liquid storage cavity (53) include the walls of the housing (51) and the cover (52). The integrated device has a flow channel (10), and the flow channel (10) includes a first flow channel (13) and a second flow channel (14). Define the first direction (G) as the direction in which the housing (51) is connected to the cover (52). Along the first direction (G), the first flow channel (13) is located on the side of the housing (51) away from the cover (52). Along the first direction (G), at least part of the wall forming the second flow channel (14) overlaps with the wall forming the liquid storage cavity (53).

2. The integrated device according to claim 1, characterized in that, The housing (51) has the first flow channel (13), and the wall forming the first flow channel (13) includes the wall of the housing (51). The housing (51) is integrally injection-molded; The housing (51) and the connecting parts (60, 70) are separately provided, and the housing (51) and the connecting parts (60, 70) are fixedly connected or limitedly connected. At least one of the housing (51) and the connecting parts (60, 70) includes a flow channel groove (16, 740), and the wall forming at least part of the second flow channel (14) includes the wall of the flow channel groove (16, 740).

3. The integrated device according to claim 2, wherein The connecting part (60, 70) includes a first groove (740), and the housing (51) includes a second groove (16). The wall forming at least part of the second flow channel (14) includes the wall of the first groove (740) and the wall of the second groove (16).

4. The integrated device according to claim 2 or 3, characterized in that, The connecting part (60, 70) includes a first connecting part (60) and a second connecting part (70). The second flow channel (14) includes a first side flow channel (600) and a second side flow channel (700). The wall forming at least part of the first side flow channel (600) includes the wall of the housing (51) and the wall of the first connecting part (60). The wall forming at least part of the second side flow channel (700) includes the wall of another part of the housing (51) and the wall of the second connecting part (70).

5. The integrated device according to claim 4, wherein, The integrated device includes a first multi-way valve (30) and a second multi-way valve (40). The first flow channel (13) includes a first sub-flow channel (11), and the first sub-flow channel (11) is a straight-through flow channel. One end of the first sub-flow channel (11) communicates with at least one valve port of the first multi-way valve (30), and the other end of the first sub-flow channel (11) communicates with at least one valve port of the second multi-way valve (40).

6. The integrated device according to claim 5, wherein, The first flow channel (13) includes a second sub-flow channel (12). At least part of the first sub-flow channel (11) is substantially parallel to at least part of the second sub-flow channel (12). One end of the second sub-flow channel (12) communicates with another valve port of the first multi-way valve (30), and the other end of the second sub-flow channel (12) communicates with another valve port of the second multi-way valve (40).

7. The integrated device according to claim 6, characterized in that, The first sub-channel (11) is adjacent to the second sub-channel (12). The housing (51) includes a connecting component (X). At least part of the first sub-channel (11) is located on one side of the connecting component (X), and at least part of the second sub-channel (12) is located on the opposite side of the connecting component (X). The connecting component (X) can unidirectionally connect the second sub-channel (12) to the first sub-channel (11).

8. The integrated device according to any one of claims 4-7, characterized in that, The integrated device includes a second multi-way valve (40). The first flow channel (13) includes a third sub-channel (130). At least part of the third sub-channel (130) is a straight-through flow channel. One end of the third sub-channel (130) communicates with at least one valve port of the second multi-way valve (40), and the other end of the third sub-channel (130) communicates with the liquid storage chamber (53).

9. The integrated device according to any one of claims 4-7, characterized in that The integrated device includes a first multi-way valve (30) and a second multi-way valve (40). At least part of the first multi-way valve (30) is located on one side of the housing (51), and at least part of the second multi-way valve (40) is located on the opposite side of the housing (51). The first flow channel (13) includes a fourth sub-channel (134). At least part of the fourth sub-channel (134) is a straight-through flow channel. The integrated device includes a first interface portion (21). The first interface portion (21) and the first multi-way valve (30) are located on the same side of the housing (51). One end of the fourth sub-channel (134) communicates with at least one valve port of the second multi-way valve (40), and the other end of the fourth sub-channel (134) communicates with the interface of the first interface portion (21).

10. The integrated device according to any one of claims 5-9, characterized in that, The integrated device includes a pump (80). The housing (51) includes a mounting portion (18). At least part of the pump (80) is located in the cavity of the mounting portion (18). The pump (80) is fixedly connected or limitedly connected to the mounting portion (18). The first flow channel (13) includes a first sub-channel (11) and a fifth sub-channel (135). Along the first direction (G), the mounting portion (18) is farther from the cover body (52) than the first sub-channel (11). The fifth sub-channel (135) communicates with the cavity of the mounting portion (18). Along the first direction (G), the fifth sub-channel (135) and the first sub-channel (11) are at different heights.

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