CN209802175U - Pipe joint of battery pack heat exchange system, battery pack heat exchange system and battery pack - Google Patents

Abstract

The utility model discloses a battery package heat transfer system's coupling, battery package heat transfer system and battery package, wherein battery package heat transfer system's coupling includes: the sealing sleeve is sleeved outside the end part of the connecting pipe, the sealing sleeve is provided with sealing structures and first structures which are arranged at intervals along the axial direction, each first structure comprises multiple sections which are arranged at intervals along the circumferential direction of the sealing sleeve, and the multiple sections of the first structures surround the sealing sleeve to form gaps between the two adjacent sections. The pipe joint can be simply and accurately installed and sealed with the collecting pipe, and the detection of the sealing degree after the installation is finished is facilitated.

Description

Pipe joint of battery pack heat exchange system, battery pack heat exchange system and battery pack

Technical Field

The utility model relates to the technical field of vehicles, particularly, relate to a coupling, battery package heat exchange system and battery package of battery package heat exchange system.

background

Connect through rubber tube with clamp or quick-operation joint between the traditional heat transfer board, require highly to the pressure manifold structure of heat transfer board, need satisfy relevant standard, the pressure manifold structure can be more complicated, and the cost is higher, and clamp or quick-operation joint all need bigger installation space moreover, and the installation is comparatively inconvenient to be not convenient for detect the degree of tightness of junction after the installation is accomplished, there is the improvement space.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least. Therefore, the utility model provides a battery package heat transfer system's coupling, this coupling can be more simple accurate realize the installation with the pressure manifold and seal, and be favorable to the installation to accomplish the degree of tightness after detect.

The utility model also provides a battery package heat transfer system of coupling with above-mentioned battery package heat transfer system.

The utility model also provides a battery package of having above-mentioned battery package heat transfer system.

According to the utility model discloses a battery package heat transfer system's coupling, include: the sealing sleeve is sleeved outside the end part of the connecting pipe, the sealing sleeve is provided with sealing structures and first structures which are arranged at intervals along the axial direction, each first structure comprises multiple sections which are arranged at intervals along the circumferential direction of the sealing sleeve, and the multiple sections of the first structures surround the sealing sleeve to form gaps between the two adjacent sections.

According to the utility model discloses a battery package heat transfer system's coupling, this coupling more enough more simple accurate with the pressure manifold realization installation and sealed, and be favorable to the installation to accomplish the back degree of tightness and detect.

in addition, according to utility model embodiment's battery package heat transfer system's coupling, can also have following additional technical characterstic:

According to some embodiments of the utility model, the seal cover includes along the continuous cover body section of axial and seal segment, seal structure locates the seal segment, first structure is located cover body section, the diameter of seal segment diminishes from the centre to both ends gradually.

According to some embodiments of the invention, the first structure is spaced apart from the seal section.

According to some embodiments of the utility model, the seal structure includes a plurality of sealing rings that arrange in order along the axial, distributes in the middle the diameter of sealing ring is greater than the distribution at both ends the diameter of sealing ring.

According to some embodiments of the utility model, adjacent two be equipped with curved recess between the sealing ring.

According to some embodiments of the invention, the thickness of the first structure in the axial direction is greater than the thickness of the sealing ring in the axial direction.

according to the utility model discloses a some embodiments, the seal cover still is equipped with axial limit flange, seal structure first structure axial limit flange is along the inside spaced arrangement of tip of axial from the seal cover, axial limit flange is used for supporting the terminal surface of pressing the pipeline of waiting to connect, axial limit flange's radian is less than 270, just at least part and not of breach axial limit flange's region is just right.

according to the utility model discloses a some embodiments, the connecting pipe is equipped with the mounting groove, the sealing cover is established the mounting groove, just seal structure with first structure protrusion in the mounting groove.

According to the utility model discloses a some embodiments, the connecting pipe is equipped with axial limit flange, seal structure first structure axial limit flange is along the inside spaced arrangement of tip of axial from the connecting pipe, axial limit flange is used for supporting the terminal surface of pressing the pipeline of waiting to connect, axial limit flange's radian is less than 270, just at least part of breach is with not establishing axial limit flange's region is just right.

According to another aspect of the present invention, a battery pack heat exchange system comprises a pipe joint of the battery pack heat exchange system and a plurality of heat exchange plates, wherein each heat exchange plate is provided with a heat exchange cavity, and an open end of each heat exchange cavity is connected with a collecting pipe; and the two ends of the connecting pipe are both sleeved with the sealing sleeves, the two collecting pipes are connected through the pipe joints, and the collecting pipes are sleeved outside the sealing sleeves.

According to the utility model discloses battery package of still another aspect, including foretell battery package heat transfer system.

Drawings

Fig. 1 is a schematic structural view of a pipe joint according to an embodiment of the present invention;

Fig. 2 is a partial structural schematic view of a pipe joint according to an embodiment of the present invention;

Fig. 3 is a cross-sectional view of a pipe joint according to an embodiment of the present invention;

fig. 4 is a partial cross-sectional view of a pipe joint according to an embodiment of the present invention;

Fig. 5 is a partial structural schematic view of a pipe joint according to an embodiment of the present invention;

Fig. 6 is a schematic structural diagram of a heat exchange system of a battery pack according to an embodiment of the present invention;

Fig. 7 is a partial structure schematic diagram of a battery pack heat exchange system according to the embodiment of the present invention.

Reference numerals:

The heat exchange structure comprises a pipe joint 100, a connecting pipe 1, a sealing sleeve 2, a sealing structure 21, a first structure 22, a notch 221, a sleeve body section 23, a sealing section 24, a sealing ring 211, a groove 212, an axial limiting flange 25, a mounting groove 11, a battery pack heat exchange system 200, a heat exchange plate 201, a heat exchange cavity 2011 and a collecting pipe 202.

Detailed Description

reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

A pipe joint 100 of a heat exchange system for a battery pack according to an embodiment of the present invention will be described with reference to fig. 1 to 7.

According to the utility model discloses battery package heat transfer system's coupling 100 can include: a connecting pipe 1 and a sealing sleeve 2.

As shown in fig. 1, fig. 2, fig. 6 and fig. 7, the pipe joint 100 is used for connecting with a header 202 to communicate with adjacent heat exchange plates 201, wherein a sealing sleeve 2 is sleeved outside the end of a connecting pipe 1, the connecting pipe 1 is used for connecting two adjacent headers 202, and the sealing sleeve 2 is used for sealing the connection between the connecting pipe 1 and the headers 202.

Optionally, the sealing sleeve 2 may be rubber or silica gel, and the connection tube 1 may be a metal tube or a plastic tube, which may be bonded by glue or directly injection-molded into a whole, so as to ensure connection stability of the two and overall setting stability of the tube joint 100. Wherein, the plastic pipe can eliminate the influence caused by the extrusion force in the lateral extrusion process to ensure the sealing performance of the connection pipe 1, and further can ensure the reliability of the pipe joint 100.

further, the sealing sleeve 2 is provided with a sealing structure 21 and a first structure 22 which are arranged at intervals along the axial direction, wherein the sealing structure 21 is used for sealing the joint of the connecting pipe 1 and the collecting pipe 202 so as to realize sealing through interference fit. Due to the interference fit mode, even if the coaxiality of the pipe joint 100 and the collecting pipe 202 has slight deviation after installation, the sealing effect can be ensured.

Compared with the traditional assembly mode of a clamp or a quick connector, the interference fit mode has the advantages of lower installation space requirement, simple structure, convenience in installation and relatively lower cost.

referring to fig. 1 to 5, the first structure 22 is used for guiding the pipe joint 100 and the header 202 during the assembling process, so as to ensure that the pipe joint and the header can be installed in a centered manner, thereby ensuring the installation accuracy and the installation accuracy, and further effectively improving the sealing performance of the connection therebetween.

further, the first structure 22 comprises a plurality of segments arranged at intervals along the circumferential direction of the sealing sleeve 2, the plurality of segments of the first structure 22 being arranged around the sealing sleeve 2 to form gaps 221 between adjacent segments. After the pipe joint 100 and the header 202 are assembled, the sealing structure 21 is accessible from the outside through the notch 221. Therefore, the notch 221 is arranged to realize the air tightness detection function, and when the sealing structure 21 fails to seal, air leakage will occur from the sealing structure 21, so that a detection tool can be used by a detection person to pass through the notch 221 and contact the sealing structure 21 so as to detect the air tightness of the sealing structure 21, and judge whether the sealing structure 21 is intact.

According to the utility model discloses battery package heat transfer system's coupling 100, this coupling 100 can be more simple accurate realize the installation with pressure manifold 202 and seal, and be favorable to the installation to accomplish the back degree of tightness and detect.

With reference to the embodiment shown in fig. 1 to 5, the sealing sleeve 2 includes a sleeve body section 23 and a sealing section 24 that are axially connected, the sealing structure 21 is disposed on the sealing section 24 for sealing the pipe joint 100 with the collecting pipe 202, and the first structure 22 is disposed on the sleeve body section 23 for ensuring the centering installation of the two, so that the sealing sleeve 2 is reasonably divided into two parts to integrate structures with different functions and functions on the same sealing sleeve 2, so as to realize the centralized arrangement of the structures, thereby making the overall structure of the pipe joint 100 more compact.

Wherein the diameter of the sealing section 24 becomes gradually smaller from the middle to both ends. Therefore, the mounting tolerance of each part can be effectively compensated, and a better sealing effect is realized.

Further, referring to fig. 1-5, the first structure 22 is spaced apart from the seal segment 24 to avoid the centering of the first structure 22 from affecting the mating seal of the seal structure 21 on the seal segment 24 with the header 202, and also to avoid the seal structure 21 from affecting the guiding and centering action of the first structure 22, so that the two will not interfere with each other in functionality and structure.

As shown in fig. 1 to 5, the sealing structure 21 includes a plurality of sealing rings 211 arranged in sequence in the axial direction, and the diameter of the sealing ring 211 distributed in the middle is larger than the diameter of the sealing rings 211 distributed at both ends. From this, through setting up a plurality of sealing rings 211 in order to realize that the multistage between coupling 100 and the pressure manifold 202 is sealed, can make sealed effect better to can effectively compensate the axiality between each part through the different setting of sealing ring 211 diameter, with compensation installation tolerance, guarantee the installation accuracy.

Further, referring to fig. 2, 4 and 5, an arc-shaped groove 212 is provided between two adjacent sealing rings 211. Set up recess 212 and reserved the space for sealing ring 211's compression to make sealing ring 211 fully compress when extrudeing with pressure manifold 202 inner wall, and then make sealing ring 211 can with the laminating of pressure manifold 202 inner wall inseparabler, make sealed effect better.

In connection with the embodiment shown in fig. 1 and 2, the first structure 22 has a thickness in the axial direction that is greater than the thickness of the sealing ring 211 in the axial direction. Since the first structure 22 is guided to engage with the inner wall of the header 202 to achieve the centering fit therebetween, the first structure 22 has a relatively large strength, and thus the thickness of the first structure 22 is increased relative to the sealing ring 211.

As shown in fig. 1 and fig. 2, the sealing sleeve 2 is further provided with an axial limiting flange 25, the axial limiting flange 25 can play a limiting role in the assembling process and the using process of the pipe joint 100 and the collecting main 202, and after the assembling is completed, the axial limiting flange 25 is suitable for being abutted against the outer end wall of the collecting main 202 to play a limiting role, so as to ensure that the pipe joint 100 is always in a good sealing state.

Specifically, the sealing structure 21, the first structure 22 and the axial limit flange 25 are arranged axially spaced inward from the end of the sealing sleeve 2 to avoid mutual structural and functional interference of the three. The axial limiting flange 25 is used for abutting against the end face of a pipeline (the collecting pipe 202) to be connected, the radian of the axial limiting flange 25 is smaller than 270 degrees, so that a through hole is formed, at least part of the notch 221 can be opposite to an area (through hole) without the axial limiting flange 25, and therefore a detection person can use a detection tool to sequentially penetrate through the axial limiting flange 25 and the first structure 22 to detect the sealing performance of the sealing structure 21.

According to other embodiments of the present invention, as shown in fig. 3 to 5, the end portion of the connection pipe 1 is recessed inward to form a mounting groove 11, and the sealing sleeve 2 is fitted in the mounting groove 11 to realize stable mounting. Wherein, seal cover 2 can adopt EPDM material integral injection moulding in mounting groove 11 to realize the two stable connections. The condition that sealing sleeve 2 neglected loading and lost in the transportation process can be avoided appearing through with the two integrative injection moulding, the phenomenon that the pine takes off can not appear in the vibration process yet, the probability of appearing leaking is also very little.

And, the sealing structure 21 and the first structure 22 protrude out of the mounting groove 11 so as to be in abutting fit with the inner wall of the header 202, so as to achieve a stable sealing effect.

Further, in connection with the embodiments shown in fig. 3-5, the coupling tube 1 is provided with an axial stop flange 25. That is, the axial stopper flange 25 is directly formed on the outer peripheral surface of the connection pipe 1 to ensure the setting stability of the axial stopper flange 25. The axial limiting flange 25 can play a limiting role in the assembling process and the using process of the pipe joint 100 and the collecting pipe 202, and after the assembling is completed, the axial limiting flange 25 is suitable for being abutted against the outer end wall of the collecting pipe 202 to play a limiting role, so that the pipe joint 100 is always in a good sealing state.

The sealing structure 21, the first structure 22 and the axial limiting flange 25 are arranged at intervals from the end of the connecting pipe 1 inwards along the axial direction, so that mutual interference of the structure and the function of the sealing structure, the first structure and the axial limiting flange is avoided. And the axial limiting flange 25 is used for abutting against the end face of a pipeline (the collecting pipe 202) to be connected, the radian of the axial limiting flange 25 is smaller than 270 degrees so as to form a through hole, so that at least part of the gap 221 can be right opposite to an area (through hole) without the axial limiting flange 25, and a detection person can use a detection tool to sequentially penetrate through the axial limiting flange 25 and the first structure 22 to detect the sealing property of the sealing structure 21.

According to the utility model discloses on the other hand's battery package heat transfer system 200, include the utility model discloses battery package heat transfer system's coupling 100 and a plurality of heat transfer board 201 (refer to fig. 6 and fig. 7), heat transfer board 201 are equipped with heat transfer chamber 2011 and are used for circulating the coolant liquid in order to carry out the heat transfer to the battery module that sets up on heat transfer board 201, and the end of opening of heat transfer chamber 2011 is connected with pressure manifold 202, and pressure manifold 202 is suitable for to get into the coolant liquid of battery package with the outside and shunts to each heat transfer chamber 2011 is arrived on average. The two ends of the connecting pipe 1 are both sleeved with sealing sleeves 2 (refer to fig. 1 and 3), and the two collecting pipes 202 are connected through the pipe joint 100, so as to realize series connection of the plurality of collecting pipes 202 and parallel connection of the plurality of heat exchange cavities 2011 (refer to fig. 6 and 7).

as shown in fig. 7, in particular, the collecting pipe 202 is sleeved outside the sealing sleeve 2 to achieve stable sealing connection between the two, and the connection distance between the two can be shortened, so that the overall structure of the battery pack heat exchanging system 200 is more compact.

According to another aspect of the present invention, a battery pack includes the above battery pack heat exchanging system 200. Other configurations of the battery pack, such as a battery module, etc., are well known to those skilled in the art and thus, will not be described in detail herein.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (11)

1. A tube connector (100) for a battery pack heat exchange system, comprising: connecting pipe (1) and seal cover (2), seal cover (2) cover is established outside the tip of connecting pipe (1), seal cover (2) are equipped with along axial spaced apart seal structure (21) and first structure (22) of arranging, first structure (22) include along the multistage of the circumference spaced apart arrangement of seal cover (2), the multistage first structure (22) encircle seal cover (2) set up in order to form breach (221) between adjacent two sections.

2. The tube connector (100) of a battery pack heat exchange system according to claim 1, wherein the sealing sleeve (2) comprises a sleeve body section (23) and a sealing section (24) which are connected in an axial direction, the sealing structure (21) is arranged on the sealing section (24), the first structure (22) is arranged on the sleeve body section (23), and the diameter of the sealing section (24) is gradually reduced from the middle to two ends.

3. The tube connector (100) of a battery pack heat exchange system according to claim 2, wherein the first structure (22) is spaced apart from the sealing section (24).

4. The tube joint (100) of a battery pack heat exchange system according to claim 2, wherein the sealing structure (21) comprises a plurality of sealing rings (211) arranged in sequence along the axial direction, and the diameter of the sealing ring (211) distributed in the middle is larger than the diameter of the sealing ring (211) distributed at both ends.

5. The tube connector (100) of a heat exchange system for a battery pack according to claim 4, wherein an arc-shaped groove (212) is formed between two adjacent sealing rings (211).

6. The tube connector (100) of a battery pack heat exchange system according to claim 4, wherein the first structure (22) has a thickness in an axial direction that is greater than a thickness of the sealing ring (211) in the axial direction.

7. The tube connector (100) of the battery pack heat exchange system according to any one of claims 1 to 6, wherein the sealing sleeve (2) is further provided with an axial limit flange (25), the sealing structure (21), the first structure (22) and the axial limit flange (25) are arranged at intervals from the end of the sealing sleeve (2) inwards along the axial direction, the axial limit flange (25) is used for pressing against the end face of a pipeline to be connected, the radian of the axial limit flange (25) is smaller than 270 degrees, and at least part of the notch (221) is opposite to the area without the axial limit flange (25).

8. The tube connector (100) of the heat exchange system of the battery pack according to any one of claims 1 to 6, wherein the connection tube (1) is provided with a mounting groove (11), the sealing sleeve (2) is sleeved on the mounting groove (11), and the sealing structure (21) and the first structure (22) protrude out of the mounting groove (11).

9. The tube joint (100) of a battery pack heat exchange system according to claim 8, wherein the connection tube (1) is provided with an axial position-limiting flange (25), the sealing structure (21), the first structure (22), and the axial position-limiting flange (25) are arranged axially and inwardly from the end of the connection tube (1) at intervals, the axial position-limiting flange (25) is used for pressing against the end surface of the pipeline to be connected, the radian of the axial position-limiting flange (25) is less than 270 °, and at least part of the gap (221) faces the region where the axial position-limiting flange (25) is not provided.

10. A battery pack heat exchange system (200), comprising:

The heat exchanger comprises a plurality of heat exchange plates (201), wherein the heat exchange plates (201) are provided with heat exchange cavities (2011), and the open ends of the heat exchange cavities (2011) are connected with collecting pipes (202);

The pipe joint (100) according to any one of claims 1 to 9, wherein the sealing sleeve (2) is sleeved on both ends of the connecting pipe (1), the two collecting pipes (202) are connected through the pipe joint (100), and the collecting pipes (202) are sleeved outside the sealing sleeve (2).

11. A battery pack, comprising a battery module and the battery pack heat exchange system (200) of claim 10.