Movable pipeline support mechanism and battery pack module liquid cooling system

Abstract

The invention discloses a movable pipeline support mechanism and a battery pack module liquid cooling system, and relates to the technical field of battery pack cooling, and the movable pipeline support mechanism comprises a pipe clamp assembly which comprises a base plate and two elastic clamping plates which are arranged on the two sides of the abdomen of the base plate and are of a symmetrical structure, the two elastic clamping plates can abut against the two sides of the pipeline correspondingly and provide clamping force used for fixing the pipeline. And the support assembly comprises two oppositely-arranged insertion grooves, and the two ends of the base plate are inserted into the two oppositely-arranged insertion grooves respectively. By arranging the movable pipeline support mechanism, not only can the liquid cooling pipeline be supported, but also the pipeline can be allowed to perform axial displacement when being impacted by water flow, so that the damage to the pipeline caused by water flow impact is effectively reduced, and the service life of the pipeline is prolonged; meanwhile, through the synergistic effect of the limiting pull rod, the positioning spring piece and the reset spring piece, it is ensured that the pipeline is kept at the initial position in the static pressure state, and therefore the stability of the whole system is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of battery pack cooling, and particularly relates to a movable pipeline support mechanism and a liquid cooling system for a battery pack module. Background Art

[0002] The cooling technology of battery pack modules has mainly experienced an evolution process from air cooling to liquid cooling. Due to its low heat dissipation efficiency, air cooling technology has gradually been unable to meet the heat dissipation requirements of high-power density battery pack modules. Liquid cooling technology, with its high heat conductivity and heat capacity, has become the mainstream technology for battery pack module cooling. The liquid cooling system directly or indirectly contacts the battery pack module through the coolant to achieve rapid heat transfer, thereby achieving an effective cooling effect.

[0003] Although liquid cooling technology has shown certain advantages in battery pack module cooling, there are still certain defects in the existing technology. For example, in the existing liquid cooling system, the contact area between the coolant and the battery pack module is limited, resulting in low heat transfer efficiency and being unable to meet the heat dissipation requirements of high-power battery pack modules. Under the impact of the coolant, the liquid cooling pipeline is prone to axial displacement, and there is a lack of effective fixing and protection measures, resulting in easy leakage at the pipeline connection, affecting the system stability.

[0004] In view of the above defects of the existing technology, the present invention proposes a movable pipeline support mechanism and a liquid cooling system for a battery pack module, aiming to provide an efficient, stable, easy-to-maintain and safe liquid cooling solution for battery pack modules to meet the urgent needs of battery pack module cooling technology. Summary of the Invention

[0005] Therefore, the technical problems to be solved by the present invention are as follows: In the existing liquid cooling system, the contact area between the coolant and the battery pack module is limited, resulting in low heat transfer efficiency and being unable to meet the heat dissipation requirements of high-power battery pack modules. Under the impact of the coolant, the liquid cooling pipeline is prone to axial displacement, and there is a lack of effective fixing and protection measures, resulting in easy leakage at the pipeline connection, affecting the system stability.

[0006] To solve the above technical problems, the present invention provides the following technical solution: A movable pipeline support mechanism includes a pipe clip assembly, which includes a base plate and two elastic clamping plates symmetrically arranged on both sides of the abdomen of the base plate. The two elastic clamping plates can respectively abut against both sides of the pipeline and provide a clamping force for fixing the pipeline; and a support seat assembly, which includes two relatively arranged slots. The two ends of the base plate are respectively inserted into the two relatively arranged slots, and the depth of the slots is greater than the insertion length of the base plate to provide a gap required for the axial displacement of the pipeline generated by the water flow impact on the pipeline during water passing.

[0007] As a preferred embodiment of the movable pipe support mechanism of the present invention, it further includes a positioning assembly, which includes a limit pull rod, a positioning spring member, and a reset spring member; the limit pull rod has a positioning portion, a locking portion in the shape of a hook, and a rod body portion connected between the positioning portion and the locking portion; the positioning spring member and the reset spring member are respectively arranged on both sides of two relatively arranged end faces of the positioning portion, and both the positioning spring member and the reset spring member can be compressed and stretched in a direction parallel to the axial direction of the pipe.

[0008] As a preferred embodiment of the movable pipe support mechanism of the present invention, the substrate has a contact surface that can cooperate with the locking portion of the limit pull rod. When the pipe undergoes axial displacement under the impact of water flow, the substrate pulls the limit pull rod to slide, and when the pipe is in a static pressure state, the limit pull rod pulls the substrate to reset through the reset elastic force of the reset spring member.

[0009] As a preferred embodiment of the movable pipe support mechanism of the present invention, the support assembly further includes mounting grooves symmetrically arranged on both sides of the slot, and the positioning assembly is arranged in the mounting grooves; the limit pull rod is slidably matched with the mounting grooves, and the locking portion of the limit pull rod is arranged on the side close to the slot opening.

[0010] As a preferred embodiment of the movable pipe support mechanism of the present invention, the mounting groove has a sliding surface arranged parallel to the axial direction of the pipe, and a moving track surface arranged parallel to the movement track of the limit pull rod; a guiding block is arranged on the sliding surface, the guiding block has a guiding surface, and the side of the guiding block opposite to the direction in which the substrate is inserted into the slot is the guiding surface.

[0011] As a preferred embodiment of the movable pipe support mechanism of the present invention, the guiding surface is an inclined surface, and the rod body portion of the limit pull rod includes an inclined section arranged parallel to the guiding surface, and axial sections arranged at both ends of the inclined section and parallel to the axial direction of the pipe; when the inclined section of the rod body portion contacts the guiding block, the guiding surface can drive the limit pull rod to generate a displacement perpendicular to the axial direction of the pipe.

[0012] To solve the above technical problems, the present invention further provides the following technical solution: a liquid cooling system for a battery pack module, including the movable pipe support mechanism described above, and further including a liquid cooling pipeline, the liquid cooling pipeline is attached to the upper and lower surfaces of the battery pack module, and is used to provide a circulating flow channel for the coolant. When the coolant flows, it absorbs the heat on the surface of the battery pack module to dissipate heat from the battery pack module; the movable pipe support mechanism is used to position and support the liquid cooling pipeline.

[0013] As a preferred embodiment of the liquid cooling system for a battery pack module of the present invention, the liquid cooling pipeline includes a plurality of U-shaped pipes, and bellows connecting adjacent U-shaped pipes and communicating adjacent U-shaped pipes.

[0014] As a preferred embodiment of the liquid cooling system for the battery pack module of the present invention, it further includes a protection component, which includes a storage box with a storage cavity inside. The storage cavity is used to accommodate the battery pack module. Ventilation grooves communicating with the storage cavity are arranged on the surface of the plate member constituting the storage box; the U-shaped tube is nested in the ventilation grooves; a movable pipe support mechanism is arranged on the groove wall of the ventilation grooves.

[0015] As a preferred embodiment of the liquid cooling system for the battery pack module of the present invention, the storage box includes a box body with an open top and a box cover hinged to the box body; the U-shaped tube is laid on the bottom of the box body of the storage box and on the box cover; the corrugated pipe is arranged on one side where the box body and the box cover are hinged.

[0016] Advantages of the present invention: By closely attaching the liquid cooling pipeline to the upper and lower surfaces of the battery pack module, efficient absorption of the heat on the surface of the battery pack module by the coolant during the circulating flow is achieved, significantly improving the heat dissipation efficiency; by setting a movable pipe support mechanism, not only can the liquid cooling pipeline be supported, but also the pipeline can be allowed to axially displace when subjected to water flow impact, effectively reducing the damage to the pipeline caused by water flow impact and extending the service life of the pipeline; at the same time, through the coordinated action of the limit pull rod, the positioning spring member and the reset spring member, it is ensured that the pipeline maintains its initial position under static pressure, thereby enhancing the stability of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present invention and do not limit the present invention. Among them:

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the structure of the protection component in the present invention.

[0020] Figure 3 It is a schematic diagram of the structure of the liquid cooling pipeline in the present invention.

[0021] Figure 4 It is a schematic diagram of the structure when the pipe clamp component is connected to the positioning component in the present invention.

[0022] Figure 5 It is a schematic diagram of the structure of the pipe clamp component in the present invention.

[0023] Figure 6 It is a schematic diagram of the state when the substrate is inserted into the slot in the present invention.

[0024] Figure 7This is a schematic structural view of the support assembly in the present invention.

[0025] Figure 8 This is a schematic structural view of the limit tie rod in the present invention.

[0026] In the figure: 1. Pipe clamp assembly; 11. Substrate; 111. Contact surface; 12. Elastic splint; 2. Support assembly; 21. Slot; 22. Installation groove; 221. Sliding surface; 222. Running rail surface; 3. Positioning assembly; 31. Limit tie rod; 311. Positioning part; 312. Rod body part; 312a. Inclined section; 312b, 312c. Axial sections; 313. Locking part; 32. Positioning spring member; 33. Reset spring member; 34. Guide block; 341. Guide surface; 4. Liquid cooling pipeline; 41. U-shaped pipe; 42. Bellows; 5. Protection assembly; 51. Storage cavity; 52. Storage box; 521. Box body; 522. Box cover; 53. Venting groove. Detailed implementation manners

[0027] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below in conjunction with the detailed implementation manners and the accompanying drawings.

[0028] The terms used in the present invention are those general terms that are currently widely used in the art in consideration of the functions of the present invention, but these terms may change according to the intentions of those of ordinary skill in the art, precedents or new technologies in the art. In addition, specific terms may be selected by the applicant, and in this case, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but based on the meanings of the terms and the overall description of the present invention.

[0029] The present invention relates to a liquid cooling system for a battery pack module, including a liquid cooling pipeline 4 and a movable pipeline support mechanism. Among them, the liquid cooling pipeline 4 is used to provide a circulating flow channel for the coolant, and the movable pipeline support mechanism is used to position and support the liquid cooling pipeline 4.

[0030] Referring to Figures 1 to 8 , the first embodiment of the movable pipeline support mechanism of the present invention is shown, including a pipe clamp assembly 1 and a support assembly 2. Among them, the pipe clamp assembly 1 includes a substrate 11 and two elastic splints 12 symmetrically arranged on both sides of the abdomen of the substrate 11; the support assembly 2 includes two oppositely arranged slots 21, and both ends of the substrate 11 are respectively inserted into the two oppositely arranged slots 21. When in use, the liquid cooling pipeline 4 is placed between the two elastic splints 12, and the two sides of the two elastic splints 12 facing each other respectively contact both sides of the pipeline and provide a clamping force for fixing the pipeline.

[0031] As a further improvement, the depth of the slot 21 is greater than the insertion length of the substrate 11 to provide a clearance required for the axial displacement of the pipeline caused by the impact of the water flow when water passes through the pipeline.

[0032] As an alternative embodiment, the movable pipeline support mechanism further includes a positioning assembly 3, which is used to keep the pipe clamp assembly 1 at the initial position of clamping the pipeline when the pipeline is in a static pressure state (referring to the state when the pipeline stops transporting and the liquid is stationary in the pipeline).

[0033] Preferably, the positioning assembly 3 includes a limit pull rod 31, a positioning spring member 32 and a reset spring member 33; wherein, the limit pull rod 31 has a positioning portion 311, a locking portion 313 in the shape of a hook, and a rod body portion 312 connected between the positioning portion 311 and the locking portion 313; the positioning spring member 32 and the reset spring member 33 are respectively arranged on both sides of two relatively arranged end faces of the positioning portion 311, and both the positioning spring member 32 and the reset spring member 33 can be compressed and stretched in a direction parallel to the axial direction of the pipeline.

[0034] As a further improvement, the substrate 11 has a contact surface 111 that can cooperate with the locking portion 313 of the limit pull rod 31. Furthermore, when the pipeline undergoes axial displacement under the impact of the water flow, the substrate 11 pulls the limit pull rod 31 to slide, and when the pipeline is in a static pressure state, the limit pull rod 31 pulls the substrate 11 to reset through the reset elastic force of the reset spring member 33.

[0035] As an alternative embodiment, the support assembly 2 further includes mounting grooves 22 symmetrically arranged on both sides of the slot 21, and the positioning assembly 3 is arranged in the mounting grooves 22.

[0036] Preferably, the limit pull rod 31 is slidably matched with the mounting groove 22, and the locking portion 313 of the limit pull rod 31 is arranged on the side close to the notch of the mounting groove 22.

[0037] As a further improvement, a notch communicating with the slot 21 is provided at the notch of the mounting groove 22, and the locking portion 313 of the limit pull rod 31 can extend into the mounting groove 22 through the notch and abut against the contact surface 111 of the substrate 11 for cooperation.

[0038] As an alternative embodiment, the mounting groove 22 has a sliding surface 221 arranged parallel to the axial direction of the pipeline, and a moving track surface 222 arranged parallel to the movement track of the limit pull rod 31.

[0039] Preferably, a guiding block 34 is arranged on the sliding surface 221, and the side of the guiding block 34 opposite to the direction in which the substrate 11 is inserted into the slot 21 is a guiding surface 341, that is, the side of the guiding block 34 facing the notch of the mounting groove 22 is the guiding surface 341.

[0040] As a further improvement, the guiding surface 341 is an inclined surface, and the rod body portion 312 of the limiting pull rod 31 includes an inclined section 312a arranged parallel to the guiding surface 341, and axial sections 312b and 312c arranged at both ends of the inclined section 312a and parallel to the axial direction of the pipeline. Furthermore, when the inclined section 312a of the rod body portion 312 contacts the guiding block 34, the guiding surface 341 can drive the limiting pull rod 31 to generate a displacement perpendicular to the axial direction of the pipeline.

[0041] In summary, the positioning spring member 32 and the reset spring member 33 are respectively arranged on both sides of two relatively arranged end faces of the positioning portion 311. Furthermore, the positioning spring member 32 and the reset spring member 33 generate elastic forces in opposite directions on the limiting pull rod 31 to keep the limiting pull rod 31 maintained at the initial position under normal conditions.

[0042] When the substrate 11 is inserted into the slot 21, the end portion of the substrate 11 abuts against the outer hook surface of the locking portion 313 of the limiting pull rod 31. As the substrate 11 is inserted and moved, the limiting pull rod 31 is pushed to move towards the inside of the installation groove 22, and the positioning spring is compressed.

[0043] As the limiting pull rod 31 moves towards the inside of the installation groove 22, the inclined section 312a of the rod body portion 312 contacts the guiding surface 341 of the guiding block 34. The guiding surface 341 is an inclined surface. Thus, under the action of the oblique guiding of the guiding surface 341, the limiting pull rod 31 generates a displacement perpendicular to the axial direction of the pipeline, that is, the limiting pull rod 31 starts to separate from the substrate 11.

[0044] When the limiting pull rod 31 is completely separated from the substrate 11, the substrate 11 continues to be inserted and moved towards the inside of the slot 21. The limiting pull rod 31 is reset by the rebounding force of the positioning spring. After resetting, the inner hook surface of the locking portion 313 of the limiting pull rod 31 is arranged facing the abutting surface 111 of the substrate 11.

[0045] As an alternative embodiment, the battery pack module liquid cooling system further includes a protection component 5 for providing external physical protection for the battery pack module.

[0046] Preferably, the protection component 5 includes a storage box 52 having a storage cavity 51 inside; wherein, the storage box 52 includes a box body 521 and a box cover 522. The top of the box body 521 is open, and the box cover 522 is hingedly installed (such as installed through a hinge) at the top opening of the box body 521. The storage cavity 51 is used to accommodate the battery pack module.

[0047] As a further improvement, air permeable grooves 53 communicating with the storage cavity 51 are arranged on the surface of the plate member constituting the storage box 52 to keep the air inside and outside the storage box 52 flowing and improve the heat dissipation effect.

[0048] As a further improvement, the liquid cooling pipeline 4 includes a plurality of U-shaped pipes 41 and corrugated pipes 42 that connect adjacent U-shaped pipes 41 and communicate adjacent U-shaped pipes 41; the U-shaped pipes 41 are nested in the ventilation grooves 53, and the movable pipeline support mechanism is arranged on the groove walls of the ventilation grooves 53.

[0049] As a further improvement, the U-shaped pipes 41 are laid on the bottom of the box body 521 of the storage box 52 and on the box cover 522; the corrugated pipes 42 are arranged on the side where the box body 521 is hinged to the box cover 522. With such an arrangement, the liquid cooling pipeline 4 can be attached to the upper and lower surfaces of the battery pack module. When the coolant flows, it can quickly absorb the heat on the surface of the battery pack module to dissipate heat from the battery pack module, and does not interfere with the opening and closing of the box cover 522, facilitating the access to the battery pack.

[0050] In summary, through the close fit of the liquid cooling pipeline 4 to the upper and lower surfaces of the battery pack module, the present invention realizes the efficient absorption of the heat on the surface of the battery pack module by the coolant during the circulation process, significantly improving the heat dissipation efficiency; by setting the movable pipeline support mechanism, it can not only support the liquid cooling pipeline 4, but also allow the pipeline to perform axial displacement when impacted by the water flow, effectively reducing the damage to the pipeline caused by the water flow impact and extending the service life of the pipeline; at the same time, through the coordinated action of the limit pull rod 31, the positioning spring member 32, and the reset spring member 33, it is ensured that the pipeline maintains its initial position under the static pressure state, thereby enhancing the stability of the entire system.

[0051] Finally, it should be pointed out that the methods and devices described in detail above are only examples, and those skilled in the art can modify these examples in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A movable pipe support mechanism, characterized in that: include, A pipe clamp assembly (1) comprises a base plate (11), and two elastic clamping plates (12) arranged on both sides of the abdomen of the base plate (11) and having a symmetrical structure, wherein the two elastic clamping plates (12) can respectively contact both sides of a pipe and provide a clamping force for fixing the pipe; and The support assembly (2) comprises two slots (21) arranged opposite to each other, the two ends of the base plate (11) are respectively inserted into the two slots (21) arranged opposite to each other, and the depth of the slots (21) is greater than the insertion length of the base plate (11), so as to provide the clearance required for the axial displacement of the pipeline caused by the impact of water flow on the pipeline when water is flowing.

2. The movable pipe support mechanism according to claim 1, characterized in that: Also includes, A positioning assembly (3), comprising a limiting pull rod (31), a positioning spring member (32) and a return spring member (33); The position-limiting pull rod (31) comprises a positioning portion (311), a hook-shaped locking portion (313), and a rod body portion (312) connected between the positioning portion (311) and the locking portion (313); The positioning spring component (32) and the return spring component (33) are respectively arranged on both sides of two oppositely arranged end surfaces of the positioning portion (311), and the positioning spring component (32) and the return spring component (33) can be compressed and stretched in a direction parallel to the pipeline axis.

3. The movable pipe support mechanism according to claim 2, characterized in that: The base plate (11) has a contact surface (111) that can cooperate with the locking portion (313) of the limit pull rod (31); when the pipeline undergoes axial displacement under the impact of water flow, the base plate (11) pulls the limit pull rod (31) to slide; and when the pipeline is in a static pressure state, the limit pull rod (31) pulls the base plate (11) to reset through the reset elastic force of the reset spring member (33).

4. The movable pipe support mechanism according to claim 2 or 3, characterized in that: The support assembly (2) further comprises mounting grooves (22) symmetrically arranged on both sides of the slot (21), and the positioning assembly (3) is arranged in the mounting grooves (22); The limiting pull rod (31) is slidably matched with the installation groove (22), and the locking portion (313) of the limiting pull rod (31) is arranged on a side close to the notch of the installation groove (22).

5. The movable pipe support mechanism according to claim 4, characterized in that: The installation groove (22) has a sliding surface (221) arranged parallel to the axial direction of the pipeline, and a track surface (222) arranged parallel to the movement track of the limiting pull rod (31); A guide block (34) is arranged on the sliding surface (221), the guide block (34) has a guide surface (341), and the side of the guide block (34) that is arranged opposite to the direction in which the substrate (11) is inserted into the slot (21) is the guide surface (341).

6. The movable pipe support mechanism according to claim 5, characterized in that: The guide surface (341) is an inclined surface, and the rod body (312) of the limit pull rod (31) comprises an inclined section (312a) arranged parallel to the guide surface (341), and axial sections (312b, 312c) arranged at both ends of the inclined section (312a) and arranged parallel to the axial direction of the pipeline; When the inclined section (312a) of the rod body (312) contacts the guide block (34), the guide surface (341) can drive the limiting pull rod (31) to generate a displacement perpendicular to the axial direction of the pipeline.

7. A battery pack module liquid cooling system, comprising the movable pipe support mechanism according to any one of claims 1 to 6, characterized in that: Also includes, A liquid cooling pipeline (4), the liquid cooling pipeline (4) being attached to the upper and lower surfaces of the battery pack module and used to provide a circulation flow channel for the coolant, and when the coolant flows, it absorbs heat from the surface of the battery pack module to dissipate heat for the battery pack module; The movable pipeline support mechanism is used to position and support the liquid cooling pipeline (4).

8. The battery pack module liquid cooling system according to claim 7, characterized in that: The liquid cooling pipeline (4) comprises a plurality of U-shaped tubes (41) and a corrugated tube (42) connecting adjacent U-shaped tubes (41) and making adjacent U-shaped tubes (41) communicate with each other.

9. The battery pack module liquid cooling system according to claim 8, characterized in that: Also includes, A protective assembly (5), comprising a storage box (52) having a storage cavity (51) therein, wherein the storage cavity (51) is used to store a battery pack module, and a surface of a plate constituting the storage box (52) is provided with air-permeable grooves (53) intersecting the storage cavity (51); The U-shaped tube (41) is nested in the air-permeable groove (53); The movable pipe support mechanism is arranged on the groove wall of the air permeable groove (53).

10. The battery pack module liquid cooling system according to claim 9, characterized in that: The storage box (52) comprises a box body (521) with an opening at the top, and a box cover (522) hinged to the box body (521); The U-shaped tube (41) is laid on the bottom of the box body (521) and the box cover (522) of the storage box (52); The bellows (42) is arranged on one side where the box body (521) and the box cover (522) are hinged.

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