A heat exchange device and a battery device

Abstract

This application discloses a heat exchange device and a battery device. The heat exchange device includes a connection structure with a medium channel. At least a portion of the medium channel is configured for inserting an external connector, allowing the axial position of the external connector relative to the medium channel to be variable. The connection structure provided in this application, with at least a portion of the medium channel configured for inserting an external connector and allowing the axial position of the external connector relative to the medium channel to be variable, allows the external connector to be directly fitted into the medium channel, reducing the number of components and the installation space required. By directly inserting the external connector into the medium channel and allowing the axial position of the external connector relative to the medium channel to be variable, assembly tolerances caused by manufacturing and installation tolerances of the components are absorbed, achieving a direct connection between the two.

Description

Technical Field

[0001] This application relates to the field of heat exchange, specifically to a heat exchange device and a battery device. Background Technology

[0002] The connecting structure is used to connect adjacent media, providing a means to connect media of different segments. When the connecting structure is used to connect adjacent channel structures, it can form a continuous channel for transporting media.

[0003] Generally, existing connection structures have a large number of components, their assembly structure design is complex, their assembly efficiency is low, and they require a large assembly space. Utility Model Content

[0004] In view of the above problems, this application provides a heat exchange device and a battery device, which have the advantages of fewer components, higher assembly efficiency, and smaller assembly space.

[0005] In a first aspect, this application provides a heat exchange device including a connection structure having a medium channel; at least a portion of the medium channel is configured for insertion of an external connector, and allows the axial position of the external connector relative to the medium channel to be variable.

[0006] In the technical solution of this application embodiment, at least a portion of the medium channel is configured for insertion of an external connector, allowing the axial position of the external connector relative to the medium channel to be variable. The external connector can be directly fitted into the medium channel, reducing the number of components and the mounting space. By directly inserting the external connector into the medium channel and allowing the axial position of the external connector relative to the medium channel to be variable, assembly tolerances caused by manufacturing and installation tolerances of the components are absorbed, achieving a direct connection between the two.

[0007] In some embodiments, the media channel includes at least an adapter and an adjustable portion arranged sequentially along its axial direction. The adapter is configured to fit an external connector and allow the position of the external connector relative to the adapter to be variable along the axial direction of the media channel. The adjustable portion is provided to accommodate the portion of the external connector that extends beyond the adapter. The adapter and adjustable portion can be configured with different assembly tolerance ranges to be adjusted according to specific needs, so that the connection structure provided in this application embodiment can be adapted to various application scenarios.

[0008] In some embodiments, the medium channel has two medium ports disposed opposite each other along its axial direction, and an adapter and an adjustable part are disposed near at least one medium port. By distributing the adapter and adjustable part near at least one medium port of the medium channel, the axial position of at least one external connector relative to the medium channel becomes variable. By distributing the adapter and adjustable part near both medium ports, the axial positions of two external connectors relative to the medium channel become variable, further improving the adjustability of assembly tolerances.

[0009] In some embodiments, an inner limiting part is provided within the media channel. The inner limiting part protrudes from the channel wall of the media channel toward the inner side of the media channel and is located on the movement path of the external connector. The adapter part, the adjustable part, and the inner limiting part are arranged sequentially along the axial direction of the media channel. The inner limiting part limits the distance at which the external connector is inserted into the media channel, thereby limiting the adjustable limit position.

[0010] In some embodiments, the inner limiting portion extends circumferentially along the medium channel, and the plane containing the inner limiting portion is perpendicular to the axis of the medium channel. Since the cross-section of the outer connector is annular, and the inner limiting portion extends circumferentially in an annular shape to fit the cross-section of the outer connector, and the plane containing the inner limiting portion is perpendicular to the axis of the medium channel, that is, perpendicular to the axis of the outer connector, the limiting effect is optimal.

[0011] In some embodiments, the media channel includes at least a first channel segment and a second channel segment that are axially connected thereto. The radial dimension of the first channel segment is larger than that of the second channel segment. A step is formed at the connection point of the first and second channel segments. The first channel segment is provided with an adapter and an adjustable portion, and the adapter and the step define the axial dimension of the adjustable portion. By using different radial dimension segments of the media channel to form a step, the distance at which an external connector can be inserted into the media channel is limited, simplifying the channel wall inside the media channel.

[0012] In some embodiments, the connection structure includes an outer limiting portion having at least a portion of an adapter portion. The outer limiting portion is axially away from the adjustable portion along the medium channel. The outer limiting portion has a first abutting surface disposed opposite to the adjustable portion, which abuts against a second abutting surface of the external connector to limit the axial distance of the external connector inserted into the medium channel. By limiting the distance of the external connector inserted into the medium channel by the outer limiting portion, the adjustable limit position is defined.

[0013] In some embodiments, the first abutting surface extends circumferentially along the medium channel, and the plane containing the first abutting surface is perpendicular to the axis of the medium channel. Since the second abutting surface of the external connector is annular, and the outer limiting portion extends circumferentially in an annular shape to fit the second abutting surface of the external connector, and the plane containing the outer limiting portion is perpendicular to the axis of the medium channel, that is, perpendicular to the axis of the external connector, the limiting effect is optimal.

[0014] In some embodiments, the connecting structure includes a cylindrical wall portion, the inner wall of which forms at least a portion of the adapter portion. The cylindrical wall portion is axially away from the adjustable portion along the medium channel. The end face of the cylindrical wall portion facing away from the adjustable portion serves as a second abutment surface to abut against the external connector, thereby limiting the axial distance of the external connector inserted into the medium channel. The end face serves as a first abutment surface. By using the end face of the cylindrical wall portion as the first abutment surface, and the first and second abutment surfaces abut against each other, the insertion distance of the external connector into the medium channel is limited. The first and second abutment surfaces are mutually adapted, improving the accuracy and effectiveness of the limiting.

[0015] In some embodiments, the radial dimensions of the adjustable portion and the adapter portion are the same. Both the adjustable portion and the adapter portion can be adapted to external connectors, improving the insertion stability of external connectors within the media channel.

[0016] In some embodiments, the channel wall of the adapter portion is provided with an adapter area for adapting an annular seal, which is used to seal the connection structure and the external connector. The annular seal achieves the purpose of sealing the connection structure and the external connector, improving the sealing performance of the medium within the medium channel and preventing leakage of the medium between the connection structure and the external connector.

[0017] In some embodiments, the connection structure includes a first connection structure and a second connection structure; the first connection structure has a portion of a medium channel, and the second connection structure has another portion of a medium channel, and the first and second connection structures are detachably connected along the axial direction of the medium channels. By providing the first and second connection structures, the first and second connection structures can be sequentially removed to prevent medium leakage.

[0018] In some embodiments, the axis of the medium channel is at an angle to the horizontal line, and the first connecting structure is disposed above the second connecting structure. The second connecting structure has a portion of its medium channel wall with a first fitting area for fitting a first annular seal, which seals the second connecting structure and the external connector. When the first connecting structure is removed, the second connecting structure and the external connector are sealed by the first annular seal, preventing leakage of the medium between the second connecting structure and the external connector.

[0019] In some embodiments, the first connecting structure and the second connecting structure have a first receiving area and a second receiving area respectively on two opposite sides along the axial direction of the medium channel. The first receiving area is used to receive a portion of the second annular seal, and the second receiving area is used to receive the other portion of the second annular seal. The second annular seal is used to seal the first connecting structure and the second connecting structure. The second annular seal achieves the seal between the first connecting structure and the second connecting structure, preventing leakage of the medium between the first connecting structure and the second connecting structure.

[0020] In some embodiments, the axis of the medium channel is at an angle to the horizontal line, and the first connecting structure is disposed above the second connecting structure; a portion of the medium channel wall of the first connecting structure has a second fitting area for fitting a third annular seal, the third annular seal being used to seal the first connecting structure and the external connector. By fitting the third annular seal between the first connecting structure and the external connector, the sealing performance between the connecting structure and the external connector is further improved.

[0021] In some embodiments, the first connecting structure includes a first base portion, with a first cylindrical wall portion and a second cylindrical wall portion respectively provided on opposite sides of the first base portion. The inner wall of the first cylindrical wall portion communicates with the inner wall of the second cylindrical wall portion to form a partial medium channel. The second connecting structure includes a second base portion, with an annular inner recessed platform and a cylindrical wall portion respectively provided on opposite sides of the second base portion. The second cylindrical wall portion is inserted into the interior of the annular inner recessed platform, and the end face of the second cylindrical wall portion abuts against the platform surface of the annular inner recessed platform. The first base portion and the second base portion are joined together along the axial direction of the medium channel. By joining the first base portion and the second base portion along the axial direction of the medium channel, and by having the end face of the second cylindrical wall portion abut against the platform surface of the annular inner recessed platform, the first connecting structure and the second connecting structure can be easily assembled, improving the assembly efficiency of the connecting structure.

[0022] In some embodiments, both the first and second connection structures are flange structures. By setting both the first and second connection structures as flange structures, the connection structures gain the advantage of being able to withstand greater pressure.

[0023] In some embodiments, the heat exchange device includes an external connector that is inserted into at least a portion of the medium channel of the connection structure and whose axial position relative to the medium channel is variable.

[0024] In some embodiments, the heat exchange device further includes a first fixing member and a second fixing member, the first fixing member being connected to the connecting structure; one port of the external connector is inserted into at least a portion of the medium channel and its axial position relative to the medium channel is variable, and the other port of the external connector is connected to the second fixing member. By having the external connector inserted into at least a portion of the medium channel and its axial position relative to the medium channel is variable, assembly tolerances along the axial direction of the medium channel caused by manufacturing and installation tolerances of the first and second fixing members can be absorbed.

[0025] In some embodiments, the medium channel has a first medium port and a second medium port disposed opposite to each other along its axial direction. The external connector includes a first connector and a second connector, and the heat exchange device further includes a second fixing member and a third fixing member. One port of the first connector is inserted into the first medium port, and the other port of the first connector is connected to the third fixing member. One port of the second connector is inserted into the second medium port and its axial position relative to the medium channel is variable, and the other port of the second connector is connected to the second fixing member. By inserting the second connector into the second medium port and allowing its axial position to be variable relative to the medium channel, assembly tolerances along the axial direction of the medium channel caused by manufacturing and installation tolerances of the third and second fixing members can be absorbed.

[0026] In some embodiments, one port of the first connector is inserted into the first medium port and its axial position relative to the medium channel is variable. By inserting the first connector into the first medium port and the second connector into the second medium port, and by having the axial position relative to the medium channel variable, assembly tolerances along the axial direction of the medium channel caused by manufacturing and installation tolerances of the third and second fasteners can be absorbed.

[0027] Secondly, this application provides a battery device, including the heat exchange device as described in the first aspect.

[0028] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0029] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0030] Figure 1 This is a schematic diagram of the assembly of the connection structure according to some embodiments of this application;

[0031] Figure 2 This is an exploded view of the connection structure of some embodiments of this application;

[0032] Figure 3 This is a cross-sectional view of the connection structure of some embodiments of this application, taken along the axial direction.

[0033] Figure 4 This is a cross-sectional view of the connection structure of some embodiments of this application, taken along the axial direction.

[0034] Figure 5 This is a cross-sectional view of a heat exchange device according to some embodiments of this application, taken along the axial direction.

[0035] Figure 6 This is a cross-sectional view of a heat exchange device according to some embodiments of this application, taken along the axial direction.

[0036] Figure 7 This is a cross-sectional view of a heat exchange device according to some embodiments of this application, taken along the axial direction.

[0037] The reference numerals in the detailed embodiments are as follows:

[0038] 100. Connecting structure; 200. External connector; 300. First fixing member; 400. Second fixing member; 500. Third fixing member; 600. First annular seal; 700. Second annular seal; 800. Third annular seal; 900. Fourth annular seal; 100a. Medium channel; 100b. First channel section; 100c. Second channel section; 100d. Inner limiting part; 101. First connecting structure; 1 02. Second connecting structure; 103. Outer limiting part; 103a. First abutting surface; 1011. First base part; 1012. First cylinder wall part; 1013. Second cylinder wall part; 1021. Second base part; 1022. Inner recessed platform; 1023. Third cylinder wall part; 201. First connector; 202. Second connector; 200a. Second abutting surface; a. Adaptor part; b. Adjustable part; c. First medium port; d. Second medium port. Detailed Implementation

[0039] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0041] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0042] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0043] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0044] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0045] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0046] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0047] Power batteries are used in a variety of different fields. The internal structure of a power battery involves the dissipation and cooling of heat through the flow of a medium. Cooling medium is generally selected as cooling water, and the battery is circulated and cooled through the circulation of cooling water.

[0048] Generally, power battery packs use inlet and outlet connectors to connect adjacent inlets. The connector structure involved in this technology includes a flange, an inner male connector, and an outer male connector. The flange is positioned between the inner and outer male connectors. An anti-rotation structure is located on the side of the outer male connector closest to the flange, while a nut is located on the side of the anti-rotation structure furthest from the flange. A gasket is also placed between the anti-rotation structure and the nut. The nut secures the connector structure to the battery casing. The two inlet and outlet connectors are connected via quick-connect fittings to the inner and outer male connectors, respectively, connecting the inside and outside of the battery pack and allowing coolant to enter the battery pack. This prevents the battery core from becoming too cold or too hot, improving battery pack safety. Alternatively, the power battery pack uses a flange combined with quick-connect fittings and corrugated nylon tubing to connect the inside and outside of the battery pack and allow coolant to enter the battery pack. The aforementioned connector structure for connecting the internal and external cooling media of the battery pack contains a large number of components, is complex to assemble, has low assembly efficiency, high manufacturing and assembly costs, and occupies a large space during assembly.

[0049] Based on the above considerations, in order to reduce the number of components in the joint structure, simplify the assembly operation of the joint structure, improve the assembly efficiency, and reduce the space occupied by the joint structure, a simple connection structure 100 is designed. This connection structure 100 can be easily assembled, and while simplifying the structure, it can absorb the assembly tolerance caused by the manufacturing tolerance and installation tolerance of the parts, effectively reducing the assembly difficulty caused by errors.

[0050] The connection structure 100 provided in this application embodiment can be used as a connecting joint or a connection structure 100 between the ends of a pipeline through which the medium passes. It can be applied to any connection point for connecting and conveying pipelines, especially in devices requiring heat exchange. The medium includes, but is not limited to, gaseous, liquid, or molten media. For example, the connection structure 100 provided in this application embodiment can be applied to a battery pack, and the medium can be selected as a liquid medium, specifically liquid water.

[0051] For ease of explanation, the following embodiments will be described using a connection structure 100 and a heat exchange device provided in an embodiment of this application as an example.

[0052] Please refer to Figures 1 to 4 The connection structure 100 provided in this application embodiment has a medium channel 100a, at least a portion of which is configured for insertion of an external connector 200 and allows the axial position of the external connector 200 relative to the medium channel 100a to be variable.

[0053] The connecting structure 100 can be a one-piece molded structure. For example, it can be molded from the same material in the same mold and process, or one part can be molded outside the mold first, and then the other part can be molded inside the mold. Alternatively, the connecting structure 100 can include two or more separate structures, which are assembled to form the connecting structure 100. The mating surfaces of the two parts are sealed. For example, two separate structures are assembled along the axial direction of the medium channel 100a, and a sealing structure is provided between the two mating surfaces of the two separate structures that are axially aligned with each other along the medium channel 100a, so that all other parts of the connecting structure 100 except for the medium channel 100a are sealed.

[0054] A medium channel 100a is provided on the connecting structure 100. Optionally, the medium channel 100a can extend from one side of the connecting structure 100 to the other side, and the one side and the other side can be arranged adjacent to or opposite to each other. The medium channel 100a has at least two medium ports, one for medium to flow into the interior of the medium channel 100a, and the other for medium to flow out of the interior of the medium channel 100a. The two medium ports can be arranged opposite to each other along the axial direction of the medium channel 100a, that is, the two medium ports are respectively arranged on two opposite sides. Alternatively, the axis of one of the at least two medium ports coincides with the axis of the medium channel 100a, while the axis of the other medium port is set at an angle to the axis of the medium channel 100a, for example, at a perpendicular angle, that is, the two medium ports are respectively arranged on two angled sides, and the two sides can be adjacent or spaced apart by other sides.

[0055] The medium channel 100a may also have multiple pairs of medium ports. Any pair of medium ports can be configured as described above. At least one of the medium ports in a pair can be used to insert and mount an external connector 200, and the axial position of the external connector 200 relative to the medium channel 100a can be varied. For the medium port that is inserted and mounted with the external connector 200, its axis is the axis of the medium channel 100a near itself, that is, the axis of the medium port.

[0056] At least a portion of the media channel 100a is configured for insertion of the external connector 200, or the entire media channel 100a is configured for insertion of the external connector 200. The distance at which the external connector 200 is inserted into the media channel 100a is adjustable, depending on the specific application of the connection structure 100 and the axial extension length of the external connector 200 along the media channel 100a.

[0057] In the technical solution of this application embodiment, at least a portion of the medium channel 100a is configured for insertion of an external connector 200, allowing the axial position of the external connector 200 relative to the medium channel 100a to be variable. The external connector 200 can be directly fitted into the medium channel 100a, reducing the number of components and the mounting space. By directly inserting the external connector 200 into the medium channel 100a and allowing the axial position of the external connector 200 relative to the medium channel 100a to be variable, assembly tolerances caused by manufacturing and installation tolerances of the components are absorbed, achieving a direct connection between the two.

[0058] In some application embodiments, the first fastener 300 is connected to the connecting structure 100, one port of the external connector 200 is inserted into at least a portion of the medium channel 100a and its axial position relative to the medium channel 100a is variable, while the other port of the external connector 200 is connected to the second fastener 400. By having the external connector 200 inserted into at least a portion of the medium channel 100a and its axial position relative to the medium channel 100a variable, assembly tolerances along the axial direction of the medium channel 100a caused by manufacturing and installation tolerances of the first fastener 300 and the second fastener 400 can be absorbed. For example, as... Figure 5 As shown, the external connector 200 is inserted into the downward-facing medium port of the medium channel 100a. Of course, in other embodiments, the external connector 200 may be inserted into the upward-facing medium port of the medium channel 100a. Figure 6 As shown, in some other application embodiments, the medium channel 100a has a first medium port c and a second medium port d disposed opposite each other along its axial direction, and the external connector 200 includes a first connector 201 and a second connector 202. One port of the first connector 201 is fixedly inserted into the first medium port c, and the other port of the first connector 201 is connected to the third fastener 500. One port of the second connector 202 is inserted into the second medium port d and its axial position relative to the medium channel 100a is variable, and the other port of the second connector 202 is connected to the second fastener 400. By inserting the second connector 202 into the second medium port d and allowing its axial position to be variable relative to the medium channel 100a, assembly tolerances along the axial direction of the medium channel 100a caused by manufacturing and installation tolerances of the third fastener 500 and the second fastener 400 can be absorbed.

[0059] like Figure 6As shown, in some other application embodiments, one port of the first connector 201 is inserted into the first medium port c and its axial position relative to the medium channel 100a is variable, while the other port of the first connector 201 is connected to the third fastener 500. One port of the second connector 202 is fixedly inserted into the second medium port d, and the other port of the second connector 202 is connected to the second fastener 400. By inserting the first connector 201 into the second medium port c and allowing its axial position to be variable relative to the medium channel 100a, assembly tolerances along the axial direction of the medium channel 100a caused by manufacturing and installation tolerances of the third fastener 500 and the second fastener 400 can be absorbed.

[0060] like Figure 6 As shown, in some application embodiments, one port of the first connector 201 is inserted into the first medium port c and its axial position relative to the medium channel 100a is variable, while the other port of the first connector 201 is connected to the third fastener 500. One port of the second connector 202 is inserted into the second medium port d and its axial position relative to the medium channel 100a is variable, while the other port of the second connector 202 is connected to the second fastener 400. By inserting the first connector 201 into the first medium port c and the second connector 22 into the second medium port d, with its axial position variable relative to the medium channel 100a, assembly tolerances along the axial direction of the medium channel 100a caused by manufacturing and installation tolerances of the third fastener 500 and the second fastener 400 can be absorbed.

[0061] like Figure 7 As shown, in some other application embodiments, the first fastener 300 is connected to the connecting structure 100. One port of the first connector 201 is inserted into the first medium port c and its axial position relative to the medium channel 100a is variable. The other port of the first connector 201 is connected to the third fastener 500. One port of the second connector 202 is inserted into the second medium port d and its axial position relative to the medium channel 100a is variable. The other port of the second connector 202 is connected to the second fastener 400. By inserting the first connector 201 into the first medium port c and the second connector 22 into the second medium port d, and by allowing the second connector 22 to be inserted into the second medium port d, and its axial position relative to the medium channel 100a to be variable, assembly tolerances along the axial direction of the medium channel 100a caused by manufacturing and installation tolerances of the third fastener 500, the second fastener 400, and the first fastener 300 can be absorbed.

[0062] In some embodiments, the media channel 100a includes at least an adapter a and an adjustable portion b arranged sequentially along its axial direction. The adapter a is configured to adapt to an external connector 200 and allows the position of the external connector 200 relative to the adapter a to be variable along the axial direction of the media channel 100a. The adjustable portion b is provided to accommodate the portion of the external connector 200 that extends beyond the adapter a.

[0063] The adapter a has a length extending axially along the medium channel 100a and a radial dimension extending radially along the medium channel 100a. The radial dimension of the adapter a is adapted to the outer diameter of the external connector 200 for insertion and fitting of the external connector 200. The adjustable part b has a length extending axially along the medium channel 100a and a radial dimension extending radially along the medium channel 100a. The radial dimension of the adjustable part b does not necessarily need to be adapted to the outer diameter of the external connector 200. Optionally, the radial dimension of the adjustable part b can be greater than or equal to the outer diameter of the external connector 200, providing space for positional changes of the external connector 200 when its axial position relative to the medium channel 100a changes. The cross-sectional shape of both the adapter a and the adjustable part b can be circular, and their radial dimensions are the same. The cross-sectional shape of the adapter a and the adjustable part b can also be other shapes, such as polygons, ellipses, trapezoids, irregular shapes, etc.

[0064] The axial dimensions of the adapter a and the adjustable part b can be set according to different assembly tolerance ranges as needed, so that the connection structure 100 provided in this application embodiment can be adapted to various application scenarios.

[0065] In some embodiments, the medium channel 100a has two medium ports disposed opposite to each other along its axial direction, and an adapter a and an adjustable part b are disposed near at least one medium port.

[0066] In one implementation, such as Figure 3 and Figure 4 As shown, the medium channel 100a has two medium ports arranged opposite each other along its axial direction. One medium port is movably fitted with a second connector. The medium channel 100a near the other medium port allows the second connector to change its axial position along the medium channel 100a. Thus, the assembly tolerance of the component along the axial direction can be adjusted through one of the two medium ports.

[0067] In another implementation, the medium channel 100a has two medium ports arranged axially opposite each other. One medium port is fixedly fitted with a first connector, the axial position of which is fixed relative to the medium channel 100a. The other medium port is movably fitted with a second connector, and the medium channel 100a near this other medium port allows the axial position of the second connector to be variable along the medium channel 100a. Thus, the axial assembly tolerance of the components can be adjusted through one of the two medium ports.

[0068] In another implementation, the medium channel 100a has two medium ports arranged opposite each other along its axial direction. One medium port is movably fitted with a first connector, and the medium channel 100a near this medium port allows the first connector to be positioned axially variable along the medium channel 100a. The other medium port is movably fitted with a second connector, and the medium channel 100a near this other medium port allows the second connector to be positioned axially variable along the medium channel 100a. Thus, the assembly tolerance of the components along the axial direction can be adjusted through the two medium ports.

[0069] In another implementation, an adapter a and an adjustable part b are disposed near one medium port, and an adapter a and an adjustable part b are also disposed near the other medium port. The axial dimensions of the adapters a near the two medium ports may be the same or different, and the radial dimensions of the adapters a near the two medium ports may be the same or different, depending on the outer diameter of the first and second connectors that are specifically fitted to them. The adjustable parts b near the two medium ports may be arranged coincidentally, or the adjustable parts b near the two medium ports may be arranged separately. Optionally, in order to prevent the first and second connectors from contacting each other inside the medium channel 100a, the adjustable parts b near the two medium ports are arranged separately, and optionally an isolation structure is provided between the two adjustable parts b. This isolation structure does not affect the normal conduction of the medium channel 100a. By isolating the two adjustable parts b through the isolation structure, the adjustment of the first and second connectors inside the medium channel 100a does not interfere with each other.

[0070] By arranging an adapter a and an adjustable part b near at least one medium port of the medium channel 100a, at least one external connector 200 has a variable axial position relative to the medium channel 100a. By arranging an adapter a and an adjustable part b at both medium ports, two external connectors 200 have variable axial positions relative to the medium channel 100a, further improving the adjustability of assembly tolerances.

[0071] In some embodiments, an inner limiting part 100d is provided in the medium channel 100a. The inner limiting part 100d protrudes from the channel wall of the medium channel 100a toward the inner side of the medium channel 100a. The inner limiting part 100d is located on the moving path of the external connector 200. The adapter part a, the adjustable part b and the inner limiting part 100d are arranged sequentially along the axial direction of the medium channel 100a.

[0072] The channel wall of the medium channel 100a constitutes the inner wall of the medium channel 100a. This channel wall has a certain axial dimension and a certain radial dimension, forming a closed ring along the circumference. The two ends along the axial direction have the aforementioned first and second medium ports. An inner protrusion is provided on the wall surface facing the central axis of the medium channel 100a. The direction of the protrusion can be understood as extending radially inward. The structure of this inner protrusion can be arbitrary, such as a protruding column, boss, protrusion point, or protrusion plate. Its structure can be a solid structure, such as a semi-circular protrusion extending circumferentially along the channel wall, or a hollow structure, such as an arched arc-shaped boss. There can be one or more inner protrusions. For example, there can be two inner protrusions arranged radially opposite each other along the channel wall; or there can be three or more inner protrusions arranged sequentially and spaced apart along the circumference of the channel wall. The inner protrusion can also be a closed ring structure that encircles the channel wall circumferentially.

[0073] By providing an inner limiting part 100d on the inner wall of the channel wall, and setting the inner limiting part 100d on the side of the adjustable part b away from the adapter part a, the distance of the external connector 200 inserted into the medium channel 100a is limited by the inner limiting part 100d, thereby limiting the adjustable limit position.

[0074] In some embodiments, the inner limiting portion 100d extends circumferentially along the medium channel 100a, and the plane in which the inner limiting portion 100d is located is perpendicular to the axis of the medium channel 100a.

[0075] The inner limiting part 100d extends circumferentially along the medium channel 100a and has a circumferential dimension. The larger the circumferential dimension, the larger the circumferential contact area between the inner limiting part 100d and the outer connector 200, and the more reliable the limiting effect of the inner limiting part 100d on the outer connector 200. The plane containing the inner limiting part 100d is positioned perpendicular to the axis of the medium channel 100a. Alternatively, the surface of the outer connector 200 that contacts the inner limiting part 100d can also be perpendicular to the axis of the medium channel 100a. In this case, the reliability of the contact between the two surfaces, both perpendicular to the axis of the medium channel 100a, is optimal. Of course, the plane containing the inner limiting part 100d can also form other angles with the axis of the medium channel 100a, such as obtuse or acute angles. The angles of the plane containing the inner limiting part 100d and the surface of the outer connector 200 that contacts the inner limiting part 100d can be adapted to each other. For example, they can be adapted through an inclined surface that forms an acute angle with the axis of the medium channel 100a. Optionally, the inner limiting portion 100d extends circumferentially along the medium channel 100a to form a ring shape.

[0076] Since the cross-section of the external connector 200 is annular and the inner limiting part 100d extends circumferentially in annular shape, it fits the cross-section of the external connector 200. Furthermore, the plane where the inner limiting part 100d is located is perpendicular to the axis of the medium channel 100a, that is, perpendicular to the axis of the external connector 200, thus achieving the best limiting effect.

[0077] like Figure 3 and Figure 4 As shown, in some embodiments, the medium channel 100a includes at least a first channel segment 100b and a second channel segment 100c that are axially connected thereto. The radial dimension of the first channel segment 100b is greater than that of the second channel segment 100c. A step is formed at the connection position of the first channel segment 100b and the second channel segment 100c. The first channel segment 100b is provided with an adapter a and an adjustable part b. The adapter a and the step define the axial dimension of the adjustable part b.

[0078] The radial dimension of the first channel segment 100b is larger than that of the second channel segment 100c. At the connection between the first channel segment 100b and the second channel segment 100c, there is a drop design of the channel wall. This drop design forms a platform facing the first channel segment 100b. The platform surface of this platform is provided for contacting the end of the external connector 200, thereby limiting the distance at which the external connector 200 is inserted into the medium channel 100a.

[0079] By using different radial dimension segments of the medium channel 100a to form a ladder, the distance at which the external connector 200 is inserted into the medium channel 100a is limited. This simplifies the internal channel wall of the medium channel 100a, eliminating the need to design other structures on the channel wall of the medium channel 100a.

[0080] In some embodiments, the connection structure 100 includes an outer limiting portion 103, which is configured with at least a portion of the adapter portion a. The outer limiting portion 103 is axially away from the adjustable portion b along the medium channel 100a. The outer limiting portion 103 has a first abutting surface 103a disposed away from the adjustable portion b. The first abutting surface 103a is provided to abut against a second abutting surface 200a of the external connector 200 to limit the axial distance of the external connector 200 inserted into the medium channel 100a.

[0081] The outer limiting part 103, as part of the connecting structure 100, also serves as a structure for constructing the medium channel 100a, and its construction includes at least a portion of the adapter part a. The larger the volume occupied by the outer limiting part 103 in the connecting structure 100, the more adapter parts a can be constructed; conversely, the smaller the volume occupied by the outer limiting part 103 in the connecting structure 100, the fewer adapter parts a can be constructed. Of course, the outer limiting part 103 can also be constructed with all the adapter parts a.

[0082] The outer limiting part 103 has a first abutting surface 103a disposed away from the adjustable part b, and the first abutting surface 103a is provided to abut against the second abutting surface 200a of the external connector 200. The first abutting surface 103a is disposed facing the outside of the medium channel 100a. When the external connector 200 is inserted into the medium channel 100a, the second abutting surface 200a thereon faces the inside of the medium channel 100a. That is, the first abutting surface 103a and the second abutting surface 200a are disposed opposite each other along the axial direction of the medium channel 100a. When the first abutting surface 103a and the second abutting surface 200a abut against each other, the distance at which the external connector 200 can be inserted into the medium channel 100a is determined.

[0083] The outer limiting part 103 is part of the connecting structure 100 itself. By constructing at least part of the adapter part a in the outer limiting part 103, the limiting can be achieved by the connecting structure 100 itself. By limiting the distance of the external connector 200 inserted into the medium channel 100a by the outer limiting part 103, the adjustable limit position is limited.

[0084] In some embodiments, the first abutment surface 103a extends circumferentially along the medium channel 100a, and the plane containing the first abutment surface 103a is perpendicular to the axis of the medium channel 100a.

[0085] The first abutment surface 103a is positioned perpendicular to the axis of the medium channel 100a. Optionally, a second abutment surface 200a on the external connector 200, which contacts the first abutment surface 103a, can also be perpendicular to the axis of the medium channel 100a. This arrangement ensures optimal reliability of the contact between the two abutment surfaces, both perpendicular to the axis of the medium channel 100a. Alternatively, the plane containing the first abutment surface 103a can also form other angles with the axis of the medium channel 100a, such as obtuse or acute angles. The angles of the first abutment surface 103a and the second abutment surface 200a can be adapted to each other, for example, by using inclined surfaces that form an acute angle with the axis of the medium channel 100a. Optionally, the first abutment surface 103a and the second abutment surface 200a can extend circumferentially around the medium channel 100a to form a ring shape.

[0086] Since the second contact surface 200a of the external connector 200 is annular and the outer limiting part 103 extends circumferentially in an annular shape, it is adapted to the second contact surface 200a of the external connector 200, and the plane where the outer limiting part 103 is located is perpendicular to the axis of the medium channel 100a, that is, perpendicular to the axis of the external connector 200, the limiting effect is optimal.

[0087] In some embodiments, the connection structure 100 includes a cylindrical wall portion, specifically a third cylindrical wall portion 1023. The inner cylindrical wall of the third cylindrical wall portion 1023 forms at least a portion of the adapter portion a. The third cylindrical wall portion 1023 is axially away from the adjustable portion b along the medium channel 100a. The end face of the third cylindrical wall portion 1023 facing away from the adjustable portion b is provided to abut against a second abutment surface 200a of the external connector 200 to limit the axial distance of the external connector 200 inserted into the medium channel 100a. The end face is a first abutment surface 103a.

[0088] The third cylindrical wall portion 1023 has a certain axial dimension. The third cylindrical wall portion 1023 has an outer wall surface and an inner wall surface that are spaced apart along its radial direction. Its inner wall surface is at least part of the adapter portion a. That is, the third cylindrical wall portion 1023 has a certain thickness along its radial direction. The third cylindrical wall portion 1023 has an annular end face at its axial end, which is the aforementioned first abutment surface 103a.

[0089] By utilizing the structure of the third cylindrical wall portion 1023 itself, its end face is used as the first abutment surface 103a. The radial extension dimension of the first abutment surface 103a is limited by the thickness dimension of the third cylindrical wall portion 1023 itself, thereby limiting the specific shape and size of the first abutment surface 103a. This makes the shape and size of the first abutment surface 103a and the second abutment surface 200a more consistent. The first abutment surface 103a and the second abutment surface 200a abut against each other, and the abutment area of ​​the two is larger, and the abutment accuracy of the two is higher. This more reliably limits the distance of the external connector 200 inserted into the medium channel 100a. By adapting the first abutment surface 103a and the second abutment surface 200a to each other, the accuracy and effectiveness of the limiting are improved.

[0090] In some embodiments, the inner limiting portion 100d and the outer limiting portion 103 described above can be selectively chosen. For example, the inner limiting portion 100d may be set to restrict the distance at which the external connector 200 is inserted into the media channel 100a, while the outer limiting portion 103 is omitted. Alternatively, the outer limiting portion 103 may be set to restrict the distance at which the external connector 200 is inserted into the media channel 100a, while the inner limiting portion 100d is omitted. In some embodiments, both the inner limiting portion 100d and the outer limiting portion 103 described above can be selectively provided.

[0091] In some embodiments, the medium channel 100a has two medium ports arranged opposite each other along its axial direction. One medium port is movably fitted with a first connector, and the medium channel 100a near this medium port allows the first connector to be positioned variably along the axial direction of the medium channel 100a. The other medium port is movably fitted with a second connector, and the medium channel 100a near this other medium port allows the second connector to be positioned variably along the axial direction of the medium channel 100a. Thus, the assembly tolerance of the components along the axial direction can be adjusted through the two medium ports. When the connecting structure 100 is movably fitted with the first connector and the second connector, the first connector can be limited by one of the inner limiting portion 100d and the outer limiting portion 103, and the second connector can be limited by the other of the inner limiting portion 100d and the outer limiting portion 103.

[0092] In some embodiments, the radial dimensions of the adjustable part b and the adapter part a are the same.

[0093] The adapter a has a length extending axially along the medium channel 100a and a radial dimension extending radially along the medium channel 100a. The radial dimension of the adapter a is adapted to the outer diameter of the external connector 200 for insertion and mating with the external connector 200. The adjustable part b has a length extending axially along the medium channel 100a and a radial dimension extending radially along the medium channel 100a. The radial dimension of the adjustable part b does not necessarily need to be adapted to the outer diameter of the external connector 200. Optionally, the radial dimension of the adjustable part b can be greater than or equal to the outer diameter of the external connector 200, providing space for positional changes of the external connector 200 when its axial position relative to the medium channel 100a changes. Optionally, the radial dimensions of the adjustable part b and the adapter a are the same, so that the radial dimension of the adjustable part b is also adapted to the outer diameter of the external connector 200, further improving the insertion stability between the medium channel 100a and the external connector 200.

[0094] In some embodiments, the channel wall of the adapter a is provided with an adapter area for adapting an annular seal, the annular seal being used to seal the connection structure 100 and the external connector 200.

[0095] The channel wall has a circumferentially closed annular surface with a fitting area. This fitting area can be the wall surface itself, encircling the channel wall circumferentially and having an axial dimension much smaller than the channel wall itself. Alternatively, it can be an annular receiving groove formed in the channel wall, with the groove area serving as the fitting area. The annular seal has an annular structure and certain deformation properties; for example, it can be an annular rubber sealing ring. The annular seal is positioned within the aforementioned fitting area to seal the inner circumferential wall surface of the media channel 100a and the outer circumferential wall surface of the external connector 200. The annular seal achieves the purpose of sealing the connection structure 100 and the external connector 200, improving the sealing performance of the medium within the media channel 100a and preventing leakage between the connection structure 100 and the external connector 200.

[0096] In some embodiments, the connection structure 100 includes a first connection structure 101 and a second connection structure 102. The first connection structure 101 has a portion of a medium channel 100a, and the second connection structure 102 has another portion of a medium channel 100a. The first connection structure 101 and the second connection structure 102 are detachably connected along the axial direction of the medium channel 100a.

[0097] The first connecting structure 101 may be an integrally formed structure, or the first connecting structure 101 may include two or more separate structures. The two or more separate structures are assembled into the first connecting structure 101, and the mating surfaces of the mating are sealed. A sealing structure is set between the two mating surfaces of the two separate structures that are mated to each other, so that all other parts of the first connecting structure 101 except for the medium channel 100a are in a sealed state.

[0098] The second connecting structure 102 may be an integrally formed structure, or the second connecting structure 102 may include two or more separate structures. The two or more separate structures are assembled into the second connecting structure 102. The mating surfaces of the mating structures are sealed. A sealing structure is provided between the two mating surfaces of the two separate structures that are mated to each other, so that all other parts of the second connecting structure 102 except for the medium channel 100a are in a sealed state.

[0099] A portion of a medium channel 100a is disposed on the first connecting structure 101. Optionally, this portion of the medium channel 100a can extend from one side of the first connecting structure 101 to the other side, and the one side and the other side can be arranged adjacent to or opposite to each other. The portion of the medium channel 100a has at least two medium ports, one for medium to flow into the interior of the portion of the medium channel 100a, and the other for medium to flow out of the interior of the portion of the medium channel 100a. The two medium ports can be arranged opposite to each other along the axial direction of the portion of the medium channel 100a, that is, the two medium ports are respectively arranged on two opposite sides. Alternatively, the axis of one of the at least two medium ports coincides with the axis of the portion of the medium channel 100a, while the axis of the other medium port is angled to the axis of the portion of the medium channel 100a, for example, at a perpendicular angle, that is, the two medium ports are respectively arranged on two angled sides, and the two sides can be adjacent or spaced apart by other sides.

[0100] Another portion of the medium channel 100a is disposed on the second connecting structure 102. Optionally, this other portion of the medium channel 100a can extend from one side of the second connecting structure 102 to the other side, and the one side and the other side can be arranged adjacent to or opposite to each other. This other portion of the medium channel 100a has at least two medium ports, one for medium to flow into the interior of the other portion of the medium channel 100a, and the other for medium to flow out of the interior of the other portion of the medium channel 100a. The two medium ports can be arranged opposite to each other along the axial direction of the other portion of the medium channel 100a, that is, the two medium ports are respectively arranged on two opposite sides. Alternatively, the axis of one of the at least two medium ports coincides with the axis of the other portion of the medium channel 100a, while the axis of the other medium port is angled to the axis of the other portion of the medium channel 100a, for example, at a perpendicular angle, that is, the two medium ports are respectively arranged on two angled sides, and these two sides can be adjacent or spaced apart by other sides.

[0101] In other words, on the first connecting structure 101 and the second connecting structure 102, a portion of the medium channel 100a and another portion of the medium channel 100a are connected, but the extension paths of the two portions of the medium channel 100a may be different. For example, a portion of the medium channel 100a on the first connecting structure 101 may have two parts connected at an angle, while another portion of the medium channel 100a on the second connecting structure 102 may be linear. The portion of the medium channel 100a on the first connecting structure 101 and the other portion of the medium channel 100a on the second connecting structure 102 are connected to form the overall medium channel 100a of the connecting structure 100. For example, a portion of the medium channel 100a on the first connecting structure 101 has two parts connected at an angle, and another portion of the medium channel 100a on the second connecting structure 102 has two parts connected at an angle. The portion of the medium channel 100a on the first connecting structure 101 and the other portion of the medium channel 100a on the second connecting structure 102 are connected to form the overall medium channel 100a of the connecting structure 100.

[0102] In this embodiment, by setting a first connecting structure 101 and a second connecting structure 102, the first connecting structure 101 and the second connecting structure 102 can be disassembled sequentially to prevent media leakage. Specifically, the first connecting structure 101 and the second connecting structure 102 are detachably connected along the axial direction of the media channel 100a. For external structures close to the second connecting structure 102, the first connecting structure 101 is disassembled first. When disassembling the first connecting structure 101, the liquid level of the medium is maintained within the axial region of the media channel 100a in the second connecting structure 102. Thus, the external connector 200 and the second connecting structure 102 remain plugged in and fitted together, preventing media leakage. The first connecting structure 101 and the second connecting structure 102 are detachably connected along the axial direction of the medium channel 100a. For external structures close to the first connecting structure 101, the second connecting structure 102 is removed first. When the second connecting structure 102 is removed, the liquid level of the medium is kept in the axial region where the medium channel 100a is located in the first connecting structure 101. Then the external connector 200 and the first connecting structure 101 are plugged in and fitted together, which can prevent the medium from being leaked.

[0103] In some embodiments, the axis of the medium channel 100a is at an angle to the horizontal line, and the first connecting structure 101 is disposed on the upper side of the second connecting structure 102; the channel wall of another part of the medium channel 100a of the second connecting structure 102 is provided with a first fitting area for fitting the first annular seal 600, and the first annular seal 600 is used to seal the second connecting structure 102 and the external connector 200.

[0104] The second connecting structure 102 has another portion of a medium channel 100a whose channel wall has a circumferentially closed annular surface, on which a first fitting area is provided. This first fitting area can be the wall surface of the channel wall itself, encircling the channel wall circumferentially, and having an axial dimension much smaller than the channel wall itself. Alternatively, an annular first receiving groove can be formed on the channel wall, with the groove area of ​​the first receiving groove serving as the fitting area. The first annular seal 600 has an annular structure and certain deformation properties; for example, the first annular seal 600 is an annular rubber sealing ring. The annular seal is disposed in the aforementioned first fitting area to seal the circumferential inner wall surface of the other portion of the medium channel 100a and the circumferential outer wall surface of the external connector 200.

[0105] The first connecting structure 101 and the second connecting structure 102 are detachably connected along the axial direction of the medium channel 100a, and the axis of the medium channel 100a is at an angle to the horizontal line. Optionally, the axis of the medium channel 100a is perpendicular to the horizontal line. First, the first connecting structure 101 is removed. When the first connecting structure 101 is removed, the liquid level of the medium is maintained within the axial region of the medium channel 100a in the second connecting structure 102. The second connecting structure 102 and the external connector 200 are sealed by the first annular seal 600. Thus, the external connector 200 and the second connecting structure 102 remain plugged in, preventing medium leakage.

[0106] In some embodiments, the first connecting structure 101 and the second connecting structure 102 are respectively provided with a first receiving area and a second receiving area on two opposite sides along the axial direction of the medium channel 100a. The first receiving area is provided for receiving a part of the second annular seal 700, and the second receiving area is provided for receiving another part of the second annular seal 700. The second annular seal 700 is used to seal the first connecting structure 101 and the second connecting structure 102.

[0107] The first connecting structure 101 and the second connecting structure 102 are detachably connected along the axial direction of the medium channel 100a. The first connecting structure 101 has a mating surface facing the second connecting structure 102, and the second connecting structure 102 has a mating surface facing the first connecting structure 101. These two mating surfaces can be understood as circumferentially closed annular surfaces. A first accommodating region and a second accommodating region are respectively provided on these two annular surfaces. Both the first accommodating region and the second accommodating region are annular grooves centered on the central axis of the medium channel 100a. The second annular seal 700 has an annular structure and a certain deformation performance. For example, the second annular seal 700 is an annular rubber sealing ring. The first accommodating region accommodates a part of the second annular seal 700, and the second accommodating region accommodates another part of the second annular seal 700. The second annular seal 700 seals the first connecting structure 101 and the second connecting structure 102. The second annular seal 700 achieves the sealing of the first connecting structure 101 and the second connecting structure 102, preventing leakage of the medium between the first connecting structure 101 and the second connecting structure 102.

[0108] In some embodiments, the axis of the medium channel 100a is at an angle to the horizontal line, and the first connecting structure 101 is disposed on the upper side of the second connecting structure 102; a portion of the medium channel 100a of the first connecting structure 101 has a channel wall provided with a second fitting area for fitting the third annular seal 800, and the third annular seal 800 is used to seal the first connecting structure 101 and the external connector 200.

[0109] The first connecting structure 101 has a portion of a medium channel 100a whose channel wall has a circumferentially closed annular surface, and a second fitting area is provided on this annular surface. This second fitting area can be the wall surface of the channel wall itself, encircling the channel wall circumferentially, and having an axial dimension much smaller than the channel wall itself. Alternatively, an annular second receiving groove can be formed on the channel wall, with the groove area of ​​the second receiving groove serving as the fitting area. The third annular seal 800 has an annular structure and certain deformation properties; for example, the third annular seal 800 is an annular rubber sealing ring. The third annular seal 800 is disposed in the aforementioned second fitting area to seal the circumferential inner wall surface of this portion of the medium channel 100a and the circumferential outer wall surface of the external connector 200. By fitting the third annular seal 800 between the first connecting structure 101 and the external connector 200, the sealing performance between the connecting structure 101 and the external connector 200 is further improved.

[0110] In the above embodiments, the first annular seal 600 and the second annular seal 700 provide the primary sealing function, while the third annular seal 800 provides an auxiliary sealing function. The number of the first annular seal 600, the second annular seal 700, and the third annular seal 800 can be one or more. When the external connector 200 moves relative to the channel wall of the medium channel 100a, the external connector 200 can drive the second annular seal 700 and the third annular seal 800 to move synchronously relative to the channel wall of the medium channel 100a. Figure 3 and Figure 4 As shown, different depths of insertion of the external connector 200 into the medium channel 100a are illustrated. When the insertion depth of the external connector 200 is the minimum, the limit position can be optionally set so that the first annular seal 600 is not pulled out of the channel wall of the medium channel 100a.

[0111] like Figure 6 and Figure 7 As shown, when the first medium port c is equipped with the first connector 201, a fourth annular seal 900 is provided between the first connector 201 and the inner wall of the first cylinder wall portion 1012. The fourth annular seal 900 is used to seal the first connector 201 and the inner wall of the first cylinder wall portion 1012.

[0112] In some embodiments, the first connecting structure 101 includes a first base portion 1011, and a first cylindrical wall portion 1012 and a second cylindrical wall portion 1013 are respectively provided on opposite sides of the first base portion 1011. The inner cylindrical wall of the first cylindrical wall portion 1012 communicates with the inner cylindrical wall of the second cylindrical wall portion 1013 to form a partial medium channel 100a. The second connecting structure 102 includes a second base portion 1021, and an annular inner recessed platform 1022 and a third cylindrical wall portion 1023 are respectively provided on opposite sides of the second base portion 1021. The second cylindrical wall portion 1013 is inserted into the interior of the annular inner recessed platform 1022, and the end face of the second cylindrical wall portion 1013 abuts against the platform surface of the annular inner recessed platform 1022. The first base portion 1011 and the second base portion 1021 are joined together along the axial direction of the medium channel 100a.

[0113] The first connecting structure 101 and the second connecting structure 102 described above are respectively provided with a first receiving area and a second receiving area, respectively disposed in the first base portion 1011 and the second base portion 1021. The second annular seal 700 is sandwiched between the first base portion 1011 and the second base portion 1021 to achieve a seal between the first base portion 1011 and the second base portion 1021. By merging the first base portion 1011 and the second base portion 1021 along the axial direction of the medium channel 100a, and by abutting the end face of the second cylinder wall portion 1013 against the platform of the annular inner recessed platform 1022, the first connecting structure 101 and the second connecting structure 102 can be easily assembled, improving the assembly efficiency of the connecting structure 100.

[0114] like Figure 3 and Figure 4 As shown, the axis of the medium channel 100a extends vertically. The first connecting structure 101 is located on the upper side, and the second connecting structure 102 is located on the lower side. The positions of the first connecting structure 101 and the second connecting structure 102 can be interchanged. When the first connecting structure 101 is located below the second connecting structure 102, the radial dimension of a portion of the medium channel 100a in the first connecting structure 101 is larger than the radial dimension of the other portion of the medium channel 100a in the second connecting structure 102. This allows the stepped platform formed by the difference in the radial dimensions of the two portions of the medium channel 100a to limit the movement of the external connector 200 inserted into the first connecting structure 101.

[0115] In some embodiments, the first connecting structure 101 is a flange structure, and the second connecting structure 102 is a flange structure. By setting the first connecting structure 101 as a flange structure and the second connecting structure 102 as a flange structure, the connecting structure 100 has the advantage of being able to withstand greater pressure.

[0116] Another aspect of the embodiments of this application provides a battery device, including the heat exchange device described above.

[0117] In some embodiments, the heat exchange device further includes a first fixing member and a second fixing member 400. The first fixing member is connected to the connection structure 100. One port of the external connector 200 is inserted into at least a portion of the medium channel 100a and its axial position relative to the medium channel 100a is variable. The other port of the external connector 200 is connected to the second fixing member 400.

[0118] The first fastener can be connected to either the first connecting structure 101 or the second connecting structure 102, or simultaneously connected to both. The first and second fasteners 400 are fitted along the axial direction of the medium channel 100a. However, the specific positions of the first and second fasteners 400 do not need to be opposite or overlap along the axial direction of the medium channel 100a. As long as the first fastener is fixedly connected to the connecting structure 100 and the second fastener 400 is fixedly connected to another port of the external connector 200, and the first and second fasteners 400 are fixedly opposite each other along the axial direction of the medium channel 100a, the variability of the axial position of the external connector 200 relative to the medium channel 100a can absorb the fitting tolerance between the first and second fasteners 400, facilitating the ease and accuracy of fitting the external connector 200 and the connecting structure 100.

[0119] For example, the heat exchange device is a battery pack structure. The first fixing member can be a battery box, and the second fixing member 400 can be a water-cooled plate. It is inserted into at least part of the medium channel 100a through an external connector 200 and its axial position relative to the medium channel 100a is variable. It can absorb the assembly tolerance along the axial direction of the medium channel 100a caused by the manufacturing tolerance and installation tolerance of the battery box and the water-cooled plate.

[0120] In some embodiments, the first fastener 300 is connected to the connecting structure 100, one port of the external connector 200 is inserted into at least a portion of the medium channel 100a and its axial position relative to the medium channel 100a is variable, while the other port of the external connector 200 is connected to the second fastener 400. By having the external connector 200 inserted into at least a portion of the medium channel 100a and its axial position relative to the medium channel 100a variable, assembly tolerances along the axial direction of the medium channel 100a caused by manufacturing and installation tolerances of the first fastener 300 and the second fastener 400 can be absorbed. For example, as... Figure 5 As shown, the external connector 200 is inserted into the downward-facing medium port of the medium channel 100a. Of course, in other embodiments, the external connector 200 may be inserted into the upward-facing medium port of the medium channel 100a.

[0121] like Figure 6 As shown, in some other application embodiments, the medium channel 100a has a first medium port c and a second medium port d disposed opposite each other along its axial direction, and the external connector 200 includes a first connector 201 and a second connector 202. One port of the first connector 201 is fixedly inserted into the first medium port c, and the other port of the first connector 201 is connected to the third fastener 500. One port of the second connector 202 is inserted into the second medium port d and its axial position relative to the medium channel 100a is variable, and the other port of the second connector 202 is connected to the second fastener 400. By inserting the second connector 202 into the second medium port d and allowing its axial position to be variable relative to the medium channel 100a, assembly tolerances along the axial direction of the medium channel 100a caused by manufacturing and installation tolerances of the third fastener 500 and the second fastener 400 can be absorbed.

[0122] like Figure 6As shown, in some embodiments, one port of the first connector 201 is inserted into the first medium port c and its axial position relative to the medium channel 100a is variable, while the other port of the first connector 201 is connected to the third fastener 500. One port of the second connector 202 is fixedly inserted into the second medium port d, and the other port of the second connector 202 is connected to the second fastener 400. By inserting the first connector 201 into the second medium port c and allowing its axial position to be variable relative to the medium channel 100a, assembly tolerances along the axial direction of the medium channel 100a caused by manufacturing and installation tolerances of the third fastener 500 and the second fastener 400 can be absorbed.

[0123] like Figure 6 As shown, in some embodiments, one port of the first connector 201 is inserted into the first medium port c and its axial position relative to the medium channel 100a is variable, while the other port of the first connector 201 is connected to the third fastener 500. One port of the second connector 202 is inserted into the second medium port d and its axial position relative to the medium channel 100a is variable, while the other port of the second connector 202 is connected to the second fastener 400. By having the first connector 201 inserted into the first medium port c and the second connector 22 inserted into the second medium port d, with its axial position relative to the medium channel 100a variable, assembly tolerances along the axial direction of the medium channel 100a caused by manufacturing and installation tolerances of the third fastener 500 and the second fastener 400 can be absorbed.

[0124] like Figure 7 As shown, in some embodiments, the first fastener 300 is connected to the connecting structure 100. One port of the first connector 201 is inserted into the first medium port c and its axial position relative to the medium channel 100a is variable. The other port of the first connector 201 is connected to the third fastener 500. One port of the second connector 202 is inserted into the second medium port d and its axial position relative to the medium channel 100a is variable. The other port of the second connector 202 is connected to the second fastener 400. By inserting the first connector 201 into the first medium port c and the second connector 22 into the second medium port d, and by allowing their axial positions to be variable relative to the medium channel 100a, assembly tolerances along the axial direction of the medium channel 100a caused by manufacturing and installation tolerances of the third fastener 500, the second fastener 400, and the first fastener 300 can be absorbed.

[0125] In practical applications, the axial direction of the medium channel 100a can be horizontal, vertical, or at an angle to the horizontal or vertical direction. All of these can be used to absorb the assembly tolerances along the axial direction of the medium channel 100a caused by manufacturing and installation tolerances.

[0126] In practical applications, by connecting the first connector 201 and the second connector 202 to the two media ports of the medium channel 100a in a fixed or movable manner, the first fixing member 300, the second fixing member 400 and the third fixing member 500 mentioned above can be optionally provided to absorb the different assembly tolerances of different fixing members along the axial direction of the medium channel 100a.

[0127] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A heat exchange device, characterized by: Including connection structure, The connection structure has a medium channel; At least a portion of the media channel is configured to accommodate an external connector, allowing the axial position of the external connector relative to the media channel to be variable.

2. The heat exchange device as described in claim 1, characterized in that: The medium channel includes at least an adapter and an adjustable portion arranged sequentially along its axial direction. The adapter is configured to fit the external connector and allow the position of the external connector relative to the adapter to be variable along the axial direction of the medium channel. The adjustable portion is provided to accommodate the portion of the external connector that extends beyond the adapter.

3. The heat exchange device as described in claim 2, characterized in that: The medium channel has two medium ports arranged opposite each other along its axial direction, and the adapter and the adjustable part are arranged near at least one of the medium ports.

4. The heat exchange device as described in claim 2, characterized in that: The medium channel is provided with an inner limiting part, which protrudes from the channel wall of the medium channel toward the inner side of the medium channel. The inner limiting part is located on the moving path of the external connector. The adapter part, the adjustable part and the inner limiting part are arranged sequentially along the axial direction of the medium channel.

5. The heat exchange device as described in claim 4, characterized in that: The inner limiting portion extends circumferentially along the medium channel, and the plane in which the inner limiting portion is located is perpendicular to the axis of the medium channel.

6. The heat exchange device as described in claim 2, characterized in that: The medium channel includes at least a first channel segment and a second channel segment that are connected along its axial direction. The radial dimension of the first channel segment is greater than that of the second channel segment. A step is formed at the connection position of the first channel segment and the second channel segment. The first channel segment is provided with the adapter and the adjustable part. The adapter and the step define the axial dimension of the adjustable part.

7. The heat exchange device as described in claim 2, characterized in that: The connection structure includes an outer limiting portion, which has at least a portion of the adapter portion. The outer limiting portion is axially away from the adjustable portion along the medium channel. The outer limiting portion has a first abutting surface disposed opposite to the adjustable portion. The first abutting surface is provided to abut against a second abutting surface of the external connector to limit the axial distance of the external connector inserted into the medium channel.

8. The heat exchange device as described in claim 7, characterized in that: The first contact surface extends circumferentially along the medium channel, and the plane containing the first contact surface is perpendicular to the axis of the medium channel.

9. The heat exchange device as described in claim 2, characterized in that: The connection structure includes a cylindrical wall portion, the inner cylindrical wall of which forms at least a portion of the adapter portion. The cylindrical wall portion is axially away from the adjustable portion along the medium channel. The end face of the cylindrical wall portion facing away from the adjustable portion is provided as a second abutment surface to abut the external connector, thereby limiting the axial distance of the external connector inserted into the medium channel. The end face is a first abutment surface.

10. The heat exchange device as described in claim 2, characterized in that: The radial dimensions of the adjustable part and the adapter part are the same.

11. The heat exchange device as described in claim 2, characterized in that: The channel wall of the adapter is provided with an adapter area for adapting an annular seal, the annular seal being used to seal the connection structure and the external connector.

12. The heat exchange device according to any one of claims 1-11, characterized in that: The connection structure includes a first connection structure and a second connection structure; The first connecting structure has a portion of the medium channel, and the second connecting structure has another portion of the medium channel. The first connecting structure and the second connecting structure are detachably connected along the axial direction of the medium channel.

13. The heat exchange device as described in claim 12, characterized in that: The axis of the medium channel is at an angle to the horizontal line, and the first connecting structure is located on the upper side of the second connecting structure; The second connection structure has another portion of the medium channel wall provided with a first fitting area for fitting a first annular seal, the first annular seal being used to seal the second connection structure and the external connector.

14. The heat exchange device as described in claim 12, characterized in that: The first connecting structure and the second connecting structure are respectively provided with a first receiving area and a second receiving area on two opposite sides along the axial direction of the medium channel. The first receiving area is provided for receiving a part of the second annular seal, and the second receiving area is provided for receiving another part of the second annular seal. The second annular seal is used to seal the first connecting structure and the second connecting structure.

15. The heat exchange device as claimed in claim 12, characterized in that: The axis of the medium channel is at an angle to the horizontal line, and the first connecting structure is located on the upper side of the second connecting structure; The first connecting structure has a portion of the medium channel wall provided with a second fitting area for fitting a third annular seal, the third annular seal being used to seal the first connecting structure and the external connector.

16. The heat exchange device as claimed in claim 12, characterized in that: The first connection structure includes a first base portion, and a first cylindrical wall portion and a second cylindrical wall portion are respectively provided on opposite sides of the first base portion. The inner cylindrical wall of the first cylindrical wall portion and the inner cylindrical wall of the second cylindrical wall portion communicate to form part of the medium channel. The second connection structure includes a second base part, on which an annular inner platform and a cylindrical wall part are respectively provided on opposite sides. The second cylindrical wall part is inserted into the interior of the annular inner platform, and the end face of the second cylindrical wall part abuts against the platform surface of the annular inner platform. The first base part and the second base part are joined together along the axial direction of the medium channel.

17. The heat exchange device as claimed in claim 12, characterized in that: The first connection structure is a flange structure, and the second connection structure is a flange structure.

18. The heat exchange device according to any one of claims 1-11, characterized in that: The heat exchange device includes an external connector that is inserted into at least a portion of the medium channel of the connection structure and whose axial position relative to the medium channel is variable.

19. The heat exchange device as claimed in claim 18, characterized in that: The heat exchange device further includes a first fixing member and a second fixing member, the first fixing member being connected to the connection structure; one port of the external connector is inserted into at least a portion of the medium channel and its axial position relative to the medium channel is variable, and the other port of the external connector is connected to the second fixing member.

20. The heat exchange device as claimed in claim 18, characterized in that: The medium channel has a first medium port and a second medium port arranged opposite to each other along its axial direction; the external connector includes a first connector and a second connector; and the heat exchange device further includes a second fixing member and a third fixing member. One port of the first connector is inserted into the first medium port, and the other port of the first connector is connected to the third fixing member; one port of the second connector is inserted into the second medium port and its axial position relative to the medium channel is variable, and the other port of the second connector is connected to the second fixing member.

21. The heat exchange device as claimed in claim 20, characterized in that: One port of the first connector is inserted into the first medium port and its axial position relative to the medium channel is variable.

22. A battery device, characterized by: The battery device includes the heat exchange device according to any one of claims 1-21.

Images