Cooling pipeline structure and new energy battery pack

Abstract

The utility model provides a cooling pipeline structure and a new energy battery pack, and relates to the technical field of new energy battery cooling. The cooling pipeline structure comprises a liquid cooling plate, a liquid inlet pipeline assembly and a liquid outlet pipeline assembly; a cooling liquid inlet and a cooling liquid outlet are formed in one end of the liquid cooling plate, the cooling liquid inlet and the cooling liquid outlet are distributed in the vertical direction, and a cooling channel capable of being connected with the cooling liquid inlet and the cooling liquid outlet is formed in the liquid cooling plate; one end of the liquid inlet pipeline assembly is in sealed connection with the cooling liquid inlet through a corrugated branch pipe, one end of the liquid outlet pipeline assembly is in sealed connection with the cooling liquid outlet through a corrugated branch pipe, and the other ends of the liquid inlet pipeline assembly and the liquid outlet pipeline assembly are respectively connected with a liquid inlet and outlet interface of the battery pack. The new energy battery pack comprises the cooling pipeline structure. The technical effect of reducing the leakage risk of the cooling pipeline is achieved.

Description

Technical Field

[0001] This utility model relates to the field of new energy battery cooling technology, specifically to cooling pipeline structure and new energy battery pack. Background Technology

[0002] In the current new energy vehicle market, prismatic batteries dominate. These rigid prismatic battery packs typically have a water-cooling plate at the bottom, with the batteries placed on top. This cooling method is generally ineffective. Subsequent development of side-cooling technology, which uses a curved water-cooling plate that fits tightly against the sides of the cylindrical cells through the narrow gaps between the cells, achieves significantly better cooling. Side-cooling technology significantly increases the contact area between the coolant and the individual cells, thereby greatly improving battery cooling efficiency, effectively extending battery life, and reducing maintenance costs.

[0003] However, existing compact pipelines use a double-layer composite pipe connected to a serpentine manifold, relying on the soft material inside the double-layer composite pipe for sealing and absorbing positional errors. However, this structure has high requirements for material performance. When there is a large difference in the centering of two adjacent manifolds, the double-layer composite pipe is connected to the barbed joint on the inner wall of the serpentine manifold, which poses a risk of pipeline leakage. Utility Model Content

[0004] The purpose of this invention is to provide a cooling pipe structure and a new energy battery pack to alleviate the technical problem of leakage risk in the existing cooling pipes.

[0005] In a first aspect, the present invention provides a cooling pipe structure, including a liquid cooling plate, an inlet pipe assembly, and an outlet pipe assembly;

[0006] One end of the liquid cooling plate is provided with a cooling inlet and a cooling outlet, which are distributed vertically. The liquid cooling plate is provided with a cooling channel that can connect to both the cooling inlet and the cooling outlet.

[0007] One end of the liquid inlet pipeline assembly is sealed to the cooling liquid inlet via a corrugated branch pipe, and one end of the liquid outlet pipeline assembly is sealed to the cooling liquid outlet via a corrugated branch pipe. The other ends of the liquid inlet pipeline assembly and the liquid outlet pipeline assembly are respectively connected to the liquid inlet and liquid outlet interfaces of the battery pack.

[0008] In conjunction with the first aspect, this utility model embodiment provides one possible implementation of the first aspect, wherein the corrugated branch pipe includes a quick-connect fitting and a first corrugated pipe;

[0009] The quick-connector is connected to the first bellows, and both the cooling inlet and the cooling outlet are provided with the quick-connector.

[0010] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein both the cooling inlet and the cooling outlet are provided with anti-detachment buckles;

[0011] The quick-connect connector is provided with multiple anti-disengagement buckles that can be adapted to the anti-disengagement buckles.

[0012] In conjunction with the first aspect, this utility model embodiment provides one possible implementation of the first aspect, wherein the plurality of anti-disengagement clips are evenly distributed along the circumference of the quick-connect connector.

[0013] In conjunction with the first aspect, this utility model embodiment provides one possible implementation of the first aspect, wherein the quick-connect connector is provided with a sealing groove, and a sealing ring is provided in the sealing groove.

[0014] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the quick-connect connector is provided with an abutment plate, and when the anti-disengagement buckle and the anti-disengagement snap fastener are engaged, the top of the anti-disengagement snap fastener abuts against the abutment plate.

[0015] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein both the liquid inlet pipeline assembly and the liquid outlet pipeline assembly include a branch main pipeline and a main pipeline connector.

[0016] The branch main line and the main line joint are welded together;

[0017] The branch main pipeline is equipped with multiple pagoda joints, and the pagoda joints are connected to the first corrugated pipe of the corrugated branch pipeline.

[0018] In conjunction with the first aspect, this utility model embodiment provides one possible implementation of the first aspect, wherein the above-mentioned main pipeline connector includes a second corrugated pipe and a quick-connect connector;

[0019] One end of the second bellows is welded to the main branch line, and the second bellows is connected to the inlet / outlet interface of the battery pack via a quick-connect fitting.

[0020] In conjunction with the first aspect, this utility model embodiment provides a possible implementation of the first aspect, wherein the liquid cooling plate is provided with a liquid inlet chamber, a partition cooling chamber and a liquid return chamber;

[0021] The liquid inlet chamber, the partition cooling chamber, and the liquid return chamber are connected in sequence. A partition is provided in the middle of the liquid inlet chamber, which divides the space inside the liquid inlet chamber into an upper liquid inlet chamber and a lower liquid return chamber. The cooling liquid inlet is connected to the upper liquid inlet chamber, and the cooling liquid outlet is connected to the lower liquid return chamber.

[0022] The partition cooling chamber is provided with multiple partitions, which divide the partition cooling chamber into multiple cooling channels. The extending direction of the cooling channels is consistent with the extending direction of the liquid cooling plate.

[0023] One end of the cooling channel is connected to the liquid inlet chamber, and the other end is connected to the liquid return chamber.

[0024] Secondly, this utility model embodiment provides a new energy battery pack, including the cooling pipe structure.

[0025] Beneficial effects:

[0026] This utility model provides a cooling pipeline structure, including a liquid cooling plate, an inlet pipeline assembly, and an outlet pipeline assembly. One end of the liquid cooling plate is provided with a cooling inlet and a cooling outlet, which are distributed vertically. The liquid cooling plate is provided with a cooling channel that can connect to both the cooling inlet and the cooling outlet. One end of the inlet pipeline assembly is sealed to the cooling inlet through a corrugated branch pipe, and one end of the outlet pipeline assembly is sealed to the cooling outlet through a corrugated branch pipe. The other ends of the inlet pipeline assembly and the outlet pipeline assembly are respectively connected to the inlet and outlet interfaces of the battery pack.

[0027] Specifically, the cooling inlet and outlet ports on the liquid cooling plate are arranged vertically, allowing the inlet and outlet piping assemblies connected to them to be arranged vertically. This reduces the space occupied by the inlet and outlet piping assemblies, improves the integration of the cooling piping, and ensures that the inlet and outlet piping assemblies are a single, integrated structure with no leakage points. Furthermore, the inlet and outlet piping assemblies are sealed to the liquid cooling plate via corrugated branch pipes, further reducing the risk of leakage.

[0028] This utility model provides a new energy battery pack, including a cooling pipe structure. The new energy battery pack has the advantages described above compared to existing technologies, which will not be elaborated further here. Attached Figure Description

[0029] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the cooling pipe structure provided in an embodiment of the present utility model;

[0031] Figure 2 This is an internal schematic diagram of the cooling pipe structure provided in an embodiment of the present utility model;

[0032] Figure 3 A schematic diagram of the branch main pipeline in the cooling pipeline structure provided in the embodiment of this utility model;

[0033] Figure 4 A schematic diagram of the liquid cooling plate in the cooling pipe structure provided in the embodiment of this utility model;

[0034] Figure 5 A partial cross-sectional schematic diagram of the liquid cooling plate in the cooling pipe structure provided in this embodiment of the utility model;

[0035] Figure 6 A schematic diagram of the quick-connect fitting in the cooling pipe structure provided in this embodiment of the utility model.

[0036] icon:

[0037] 100 – Liquid cooling plate; 110 – Cooling inlet; 120 – Cooling outlet; 130 – Anti-detachment buckle; 140 – Inlet chamber; 141 – Upper inlet chamber; 142 – Lower return chamber; 150 – Partitioned cooling chamber; 151 – Cooling flow channel;

[0038] 200 – Inlet piping assembly; 210 – Branch main line; 211 – Pagoda connector; 220 – Main line connector; 221 – Second bellows;

[0039] 300 - Liquid outlet piping assembly;

[0040] 400 – Corrugated branch pipe; 410 – Quick-connect coupling; 411 – Anti-disengagement; 412 – Sealing groove; 413 – Sealing ring; 414 – Abutment plate; 420 – First corrugated pipe;

[0041] 500 - Battery pack; 510 - Liquid inlet / outlet interface. Detailed Implementation

[0042] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0043] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying 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 this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0047] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, this embodiment provides a cooling pipeline structure, including a liquid cooling plate 100, an inlet pipeline assembly 200, and an outlet pipeline assembly 300. One end of the liquid cooling plate 100 is provided with a cooling inlet 110 and a cooling outlet 120, which are distributed vertically. A cooling channel is provided inside the liquid cooling plate 100 that can connect to both the cooling inlet 110 and the cooling outlet 120. One end of the inlet pipeline assembly 200 is sealed to the cooling inlet 110 through a corrugated branch pipe 400, and one end of the outlet pipeline assembly 300 is sealed to the cooling outlet 120 through a corrugated branch pipe 400. The other ends of the inlet pipeline assembly 200 and the outlet pipeline assembly 300 are respectively connected to the inlet and outlet interfaces 510 of the battery pack 500.

[0048] Specifically, the cooling inlet 110 and cooling outlet 120 on the liquid cooling plate 100 are arranged vertically, so that the inlet pipe assembly 200 and the outlet pipe assembly 300 connected to the cooling inlet 110 and the cooling outlet 120 can be arranged vertically, thereby reducing the space occupied by the inlet pipe assembly 200 and the outlet pipe assembly 300, improving the integration of the cooling pipes, and the inlet pipe assembly 200 and the outlet pipe assembly 300 are integrated structures with no leakage points. Furthermore, the inlet pipe assembly 200 and the outlet pipe assembly 300 are sealed to the liquid cooling plate 100 through the corrugated branch pipe 400, further reducing the risk of leakage.

[0049] See Figure 1 - Figure 6 As shown, in an optional embodiment, the liquid cooling plate 100 is provided with an inlet chamber 140, a partition cooling chamber 150, and a return chamber. The inlet chamber 140, the partition cooling chamber 150, and the return chamber are connected in sequence. A partition is provided in the middle of the inlet chamber 140, which divides the space inside the inlet chamber 140 into an upper inlet chamber 141 and a lower return chamber 142. The cooling inlet 110 is connected to the upper inlet chamber 141, and the cooling outlet 120 is connected to the lower return chamber 142. The partition cooling chamber 150 is provided with multiple partitions, which divide the partition cooling chamber 150 into multiple cooling channels 151. The extending direction of the cooling channels 151 is consistent with the extending direction of the liquid cooling plate 100. One end of the cooling channel 151 is connected to the inlet chamber 140, and the other end is connected to the return chamber.

[0050] Specifically, the coolant enters the upper inlet chamber 141 of the inlet chamber 140 from the inlet pipe assembly 200, then flows into the upper multi-channel cooling flow 151 from the upper inlet chamber 141, then flows along the upper multi-channel cooling flow 151 to the far end return chamber, then enters the lower multi-channel cooling flow 151 from the return chamber, then enters the lower return chamber 142 along the lower multi-channel cooling flow 151, and then flows to the outlet pipe assembly 300 through the coolant outlet 120 connected to the lower return chamber 142.

[0051] The liquid inlet chamber 140, the partition cooling chamber 150, and the liquid return chamber form a cooling channel.

[0052] See Figure 1 - Figure 6 As shown, in the optional embodiment, the corrugated branch pipe 400 includes a quick-connect connector 410 and a first corrugated pipe 420; the quick-connect connector 410 is connected to the first corrugated pipe 420, and both the cooling inlet 110 and the cooling outlet 120 are provided with quick-connect connectors 410.

[0053] The cooling inlet 110 and cooling outlet 120 are both equipped with anti-detachment buckles 130; the quick-connect connector 410 is equipped with multiple anti-detachment buckles 411 that can be adapted to the anti-detachment buckles 130.

[0054] Multiple anti-disengagement clips 411 are evenly distributed around the quick-connect connector 410.

[0055] The quick-connector 410 has a sealing groove 412, and a sealing ring 413 is provided in the sealing groove 412.

[0056] The quick-connector 410 is provided with an abutment plate 414, and when the anti-disengagement buckle 411 and the anti-disengagement buckle 130 are engaged, the top of the anti-disengagement buckle 130 abuts against the abutment plate 414.

[0057] Specifically, when the quick-connect connector 410 is connected to the cooling inlet 110 or the cooling outlet 120, the operator inserts the quick-connect connector 410 into the cooling inlet 110 or the cooling outlet 120, with the front end of the quick-connect connector 410 entering first. At this time, the sealing ring 413 on the outer wall of the quick-connect structure abuts against the inside of the cooling inlet 110 or the cooling outlet 120 to achieve a seal. Then, as the quick-connect connector 410 is inserted, the abutment plate 414 on the quick-connect connector 410 can abut against the anti-disengagement buckle 130 at the top of the cooling inlet 110 or the cooling outlet 120, thereby limiting the maximum insertion depth of the quick-connect connector 410. At the same time, the multiple anti-disengagement buckles 411 of the quick-connect connector 410 can lock with the anti-disengagement buckle 130 to prevent the quick-connect connector 410 from falling off.

[0058] See Figure 1 - Figure 6 As shown, in the optional embodiment, both the inlet pipeline assembly 200 and the outlet pipeline assembly 300 include a branch main pipeline 210 and a main pipeline connector 220; the branch main pipeline 210 and the main pipeline connector 220 are welded; a plurality of pagoda connectors 211 are provided on the branch main pipeline 210, and the pagoda connectors 211 are connected to the first corrugated pipe 420 of the corrugated branch pipeline 400.

[0059] Among them, the main branch pipeline 210 is an integral injection-molded structure with multiple pagoda connectors 211 integrated on it, reducing the number of pipeline connection points and lowering the risk of leakage.

[0060] Specifically, the branch main line 210 and the main line connector 220 can be welded using laser welding or ultrasonic welding to ensure the sealing of the connection between the branch main line 210 and the main line connector 220.

[0061] In addition, multiple pagoda connectors 211 are provided on the branch main pipeline 210. The pagoda connectors 211 are connected to the first corrugated pipe 420 of the corrugated branch pipeline 400. This connection method not only makes it easier for staff to connect the branch main pipeline 210 to the first corrugated pipe 420, but also improves the sealing performance after connection.

[0062] Furthermore, the main branch pipe 210 can be processed in multiple sections, thereby optimizing manufacturing feasibility and reducing production costs. After being connected to the corrugated branch pipe 400, the multiple sections of the main branch pipe 210 serve as semi-finished products for welding in the next process, avoiding the complete scrapping of the corrugated branch pipe 400 due to incorrect insertion. The insertion process is simplified. Then, the multiple sections of the main branch pipe 210 are welded together, improving work efficiency. (See also...) Figure 1 - Figure 6 As shown, in the optional embodiment, the main pipeline connector 220 includes a second bellows 221 and a quick-connect connector 410; one end of the second bellows 221 is welded to the branch main pipeline 210, and the second bellows 221 is connected to the inlet / outlet interface 510 of the battery pack 500 through the quick-connect connector 410.

[0063] Specifically, the quick-connect fitting 410 of the main pipe connector 220 has the same structure as the quick-connect fitting 410 of the corrugated branch pipe 400, and the liquid inlet / outlet interface 510 of the battery pack 500 has the same structure as the cooling liquid inlet 110 and the cooling liquid outlet 120, which facilitates operation by staff and ensures the connection is sealed.

[0064] This embodiment provides a new energy battery pack 500, including a cooling pipe structure.

[0065] Specifically, the new energy battery pack 500 provided in this embodiment has the advantages of the above-mentioned cooling pipe structure compared with the prior art, which will not be elaborated here.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model 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. Such 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 utility model.

Claims

1. A cooling line structure, characterized by, The application relates to a liquid cooling plate (100), a liquid inlet pipeline assembly (200) and a liquid outlet pipeline assembly (300). One end of the liquid cooling plate (100) is provided with a cooling liquid inlet (110) and a cooling liquid outlet (120), the cooling liquid inlet (110) and the cooling liquid outlet (120) are distributed along the vertical direction, and a cooling channel capable of being connected with the cooling liquid inlet (110) and the cooling liquid outlet (120) is arranged in the liquid cooling plate (100). One end of the liquid inlet pipeline assembly (200) is sealingly connected with the cooling liquid inlet (110) through a corrugated branch pipe (400), one end of the liquid outlet pipeline assembly (300) is sealingly connected with the cooling liquid outlet (120) through the corrugated branch pipe (400), and the other ends of the liquid inlet pipeline assembly (200) and the liquid outlet pipeline assembly (300) are connected with liquid inlet and outlet interfaces (510) of a battery pack (500) respectively. The corrugated branch pipe (400) comprises a quick plug connector (410) and a first corrugated pipe (420).

2. The cooling line structure according to claim 1, characterized by The quick plug connector (410) is connected with the first corrugated pipe (420), and the quick plug connector (410) is arranged on both the cooling liquid inlet (110) and the cooling liquid outlet (120). Anti-falling buckles (130) are arranged on the cooling liquid inlet (110) and the cooling liquid outlet (120).

3. The cooling line structure according to claim 2, characterized by A plurality of anti-falling buckles (411) capable of being matched with the anti-falling buckles (130) are arranged on the quick plug connector (410). The plurality of anti-falling buckles (411) are uniformly distributed along the circumference of the quick plug connector (410).

4. The cooling line structure according to claim 3, characterized by A sealing groove (412) is formed in the quick plug connector (410), and a sealing ring (413) is arranged in the sealing groove (412).

5. The cooling line structure according to claim 3, characterized by An abutting plate (414) is arranged on the quick plug connector (410), and the top of the anti-falling buckle (130) abuts against the abutting plate (414) when the anti-falling buckle (411) is clamped with the anti-falling buckle (130).

6. The cooling line structure according to claim 3, characterized by Both the liquid inlet pipeline assembly (200) and the liquid outlet pipeline assembly (300) comprise a branch main pipeline (210) and a main pipeline connector (220).

7. The cooling line structure according to claim 2, characterized by The branch main pipeline (210) and the main pipeline connector (220) are welded. A plurality of tower connectors (211) are arranged on the branch main pipeline (210), and the tower connectors (211) are connected with the first corrugated pipe (420) of the corrugated branch pipe (400). The main pipeline connector (220) comprises a second corrugated pipe (221) and a quick plug connector (410).

8. The cooling line structure according to claim 7, characterized by One end of the second corrugated pipe (221) is welded with the branch main pipeline (210), and the second corrugated pipe (221) is connected with the liquid inlet and outlet interfaces (510) of the battery pack (500) through the quick plug connector (410). The liquid cooling plate (100) is provided with a liquid inlet cavity (140), a partition cooling cavity (150) and a liquid return cavity.

9. The cooling line structure according to any one of claims 1 to 8, characterized by ​ The liquid inlet cavity (140), the partition plate cooling cavity (150) and the liquid return cavity are sequentially communicated, a middle part of the liquid inlet cavity (140) is provided with a partition plate, the partition plate divides a space in the liquid inlet cavity (140) into an upper liquid inlet cavity (141) and a lower liquid return cavity (142), the cooling liquid inlet (110) is communicated with the upper liquid inlet cavity (141), and the cooling liquid outlet (120) is communicated with the lower liquid return cavity (142); A plurality of partition plates are arranged in the partition plate cooling cavity (150), and the plurality of partition plates divide the partition plate cooling cavity (150) into a plurality of cooling flow channels (151), and the extension direction of the cooling flow channels (151) is consistent with the extension direction of the liquid cooling plate (100); One end of the cooling flow channel (151) is communicated with the liquid inlet cavity (140), and the other end is communicated with the liquid return cavity.

10. A new energy battery pack (500), characterized in that, The cooling pipeline structure comprises the cooling pipeline structure according to any one of claims 1-9.

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