CTP whole package liquid cooling structure

Abstract

According to the CTP whole package liquid cooling structure, in the CTP whole package liquid cooling structure, a plurality of liquid cooling plates are adjustably arranged on the bottom wall of a battery pack, and each liquid cooling plate is of a hollow structure; the limiting cylinder is fixedly connected with the liquid cooling plate, the connecting rod is slidably connected into the limiting cylinder, one end of the pull rod is connected with the end, located in the limiting cylinder, of the connecting rod, and the other end of the pull rod extends out of the limiting cylinder and is connected with the pull plate. The rubber plate is fixedly connected with the mounting sliding plate and abuts against the inner wall of the battery pack; the lifting rod penetrates through the limiting cylinder and is movably inserted into the limiting groove or the normal groove, the top end of the lifting rod is fixedly connected with the lifting plate, and the second spring is arranged on the outer surface of the lifting rod in a sleeving mode and located between the lifting plate and the limiting cylinder. According to the CTP whole-pack liquid cooling structure, the liquid cooling plates can be assembled according to battery packs with different capacities, and the positions of the liquid cooling plates can be adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of CTP battery liquid cooling, in particular to a CTP whole package liquid cooling structure. Background Art

[0002] CTP technology groups battery cells directly into packs, eliminating the traditional module assembly step. The cells are first integrated into the battery pack and then installed on the vehicle body. The goal is to increase energy density and reduce costs. This approach reduces the use of side panels and end panels (module structural components) within the module itself, as well as the crossbeams and longitudinal beams (battery pack support structures) that originally separated and connected the modules. This greatly simplifies the entire battery structure, freeing up space, expanding the capacity of battery packs of the same size, and reducing the weight of the battery pack, thereby increasing battery energy density and reducing costs.

[0003] At present, an integrated liquid cooling plate is often used to cool all battery cells for liquid cooling of battery packs. However, since different new energy vehicles require different battery pack capacities, liquid cooling plates of different sizes need to be designed to cool the battery cells, which increases the manufacturing cost. In addition, it is found in practice that the heat levels of battery cells at different positions in the battery pack are often different. It is impossible to adjust the liquid cooling position of the battery pack according to the actual heat conditions of the CTP battery pack, which is a waste of liquid cooling resources.

[0004] The above information disclosed in the background technology section is only used to enhance understanding of the background of the present invention and therefore may contain information that does not constitute the prior art known to ordinary technicians in this field. Utility Model Content

[0005] The purpose of the utility model is to provide a CTP whole package liquid cooling structure, which can splice liquid cooling plates according to actual needs and adjust the arrangement density of the liquid cooling plates, saving liquid cooling resources for locations with low or even no heat generation to supply locations with higher heat generation.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] The utility model discloses a CTP whole package liquid cooling structure comprising:

[0008] Battery pack;

[0009] Multiple liquid cooling plates, which are adjustably arranged on the bottom wall of the battery pack, and the liquid cooling plates are hollow structures;

[0010] The limiting mechanism includes:

[0011] A limiting cylinder, which is fixedly connected to the liquid cooling plate,

[0012] A connecting rod is slidably connected to the limiting cylinder.

[0013] A pull rod, one end of which is connected to one end of the connecting rod located in the limiting cylinder, and the other end of which extends out of the limiting cylinder and is connected to the pull plate.

[0014] The first spring is sleeved on the pull rod and located between the inner wall of the limiting cylinder and the connecting rod.

[0015] Install the slide plate, which is fixedly connected to the other end of the connecting rod outside the limiting cylinder,

[0016] a rubber plate fixedly connected to the mounting slide plate and abutting against an inner wall of the battery pack;

[0017] Release the limit mechanism, which includes:

[0018] The limiting groove is provided on the outer surface of the connecting rod.

[0019] Normal groove, which is opened on the outer surface of the connecting rod,

[0020] A lifting rod passes through the limiting cylinder and is movably inserted into the limiting groove or the normal groove. The top end of the lifting rod is fixedly connected to the lifting plate.

[0021] The second spring is sleeved on the outer surface of the lifting rod and is located between the lifting plate and the limiting cylinder.

[0022] The CTP whole package liquid cooling structure further includes:

[0023] A plurality of connecting pipes are connected and arranged on the outside of the liquid cooling plate;

[0024] A communication mechanism, which connects adjacent connecting pipes, the communication mechanism includes:

[0025] A connecting pipe, which is connected between the two connecting pipes,

[0026] A rubber sleeve, which is fixedly connected to the outer surface of the connecting pipe and sealed to the inner wall of the connecting pipe,

[0027] a blocking ring, which is provided on the outer surface of the connecting pipe and abuts against the connecting pipe;

[0028] The liquid inlet and outlet pipes are connected to the liquid cooling plate located at the end of the battery pack and pass through the inner wall of the battery pack and extend to the outside of the battery pack. The liquid inlet and outlet pipes, the liquid cooling plate, the connecting pipe and the connecting pipe constitute a liquid cooling flow path.

[0029] In the CTP whole-pack liquid cooling structure, the bottom wall of the battery pack is provided with scale lines.

[0030] In the CTP whole-pack liquid cooling structure, the scale line extends along the central axis of the bottom wall of the battery pack.

[0031] In the CTP whole-pack liquid cooling structure, a plurality of liquid cooling plates are adjustably distributed on the bottom wall of the battery pack along the scale lines.

[0032] In the CTP whole package liquid cooling structure, the liquid cooling plate is a hollow rectangular plate.

[0033] In the CTP whole pack liquid cooling structure, multiple liquid cooling plates are arranged in an array on the bottom wall of the battery pack.

[0034] In the CTP whole package liquid cooling structure, two limiting mechanisms are symmetrically arranged outside each liquid cooling plate.

[0035] In the CTP package liquid cooling structure, the connecting pipe is a curved pipe.

[0036] In the CTP whole package liquid cooling structure, the CTP whole package liquid cooling structure is a symmetrical structure.

[0037] In the above technical solution, the utility model provides a CTP whole-pack liquid cooling structure, which has the following beneficial effects: the CTP whole-pack liquid cooling structure can avoid wasting liquid cooling resources by setting a shorter liquid cooling plate and being able to adjust the position of the liquid cooling plate inside the battery pack, and there is no need to design liquid cooling plates of different sizes according to battery packs of different capacities; by using scale lines, the position of the liquid cooling plate inside the scale lines can be observed more intuitively, and by using the cooperation between the limit mechanism and the release of the limit mechanism, the liquid cooling plate can be quickly positioned, avoiding the movement of the liquid cooling plate while facilitating the installation of the liquid cooling plate; the installation of the liquid cooling plate and the calibration of the position of the liquid cooling plate are both relatively convenient and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0039] Figure 1 This is a schematic diagram of the structure of the CTP whole package liquid cooling structure of the utility model;

[0040] Figure 2 This is a schematic cross-sectional view of the liquid cooling plate in the middle portion of the CTP package liquid cooling structure of the present invention;

[0041] Figure 3 This is a schematic cross-sectional structure diagram of the liquid cooling plate at the end of the CTP package liquid cooling structure of the present invention;

[0042] Figure 4This is a cross-sectional schematic diagram of the limiting mechanism of the CTP whole package liquid cooling structure of the present invention;

[0043] Figure 5 for Figure 4 Enlarged view of point A.

[0044] The reference numerals in the figure are as follows: battery pack 1, liquid cooling plate 2, connecting pipe 3, connecting mechanism 4, connecting pipe 401, rubber sleeve 402, blocking ring 403, liquid inlet and outlet pipe 5, scale line 6, limiting mechanism 7, pull plate 701, pull rod 702, connecting rod 703, mounting slide 704, rubber plate 705, first spring 706, limiting cylinder 707, limiting release mechanism 8, lifting plate 801, lifting rod 802, second spring 803, limiting groove 804, normal groove 805. DETAILED DESCRIPTION

[0045] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0046] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0047] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition or explanation in subsequent drawings.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0049] 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 the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0050] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; they can refer to direct connection or indirect connection through an intermediate medium; they can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0051] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0052] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0053] like Figure 1-5 As shown, in one embodiment, a CTP whole package liquid cooling structure of the utility model includes:

[0054] Battery pack 1;

[0055] Multiple liquid cooling plates 2, which are adjustably arranged on the bottom wall of the battery pack 1, and the liquid cooling plates 2 are hollow structures;

[0056] The limiting mechanism 7 includes:

[0057] The limiting cylinder 707 is fixedly connected to the liquid cooling plate 2.

[0058] The connecting rod 703 is slidably connected to the limiting cylinder 707.

[0059] The pull rod 702 has one end connected to one end of the connecting rod 703 located in the limiting cylinder 707, and the other end extending out of the limiting cylinder 707 and connected to the pull plate 701.

[0060] The first spring 706 is sleeved on the pull rod 702 and located between the inner wall of the limiting cylinder 707 and the connecting rod 703.

[0061] Install the slide plate 704, which is fixedly connected to the other end of the connecting rod 703 outside the limiting cylinder 707.

[0062] A rubber plate 705 , which is fixedly connected to the mounting slide plate 704 and abuts against the inner wall of the battery pack 1 ;

[0063] Release the limit mechanism 8, which includes,

[0064] The limiting groove 804 is provided on the outer surface of the connecting rod 703.

[0065] Normally, the groove 805 is formed on the outer surface of the connecting rod 703.

[0066] The lifting rod 802 passes through the limiting cylinder 707 and is movably inserted into the limiting groove 804 or the normal groove 805. The top end of the lifting rod 802 is fixedly connected to the lifting plate 801.

[0067] The second spring 803 is sleeved on the outer surface of the lifting rod 802 and is located between the lifting plate 801 and the limiting cylinder 707 .

[0068] In a preferred embodiment of the CTP whole package liquid cooling structure, the present invention further comprises:

[0069] A plurality of connecting pipes 3, which are arranged on the outside of the liquid cooling plate;

[0070] The connecting mechanism 4 is connected to the adjacent connecting pipes 3, and the connecting mechanism 4 includes:

[0071] The connecting pipe 401 is connected between the two connecting pipes 3.

[0072] The rubber sleeve 402 is fixedly connected to the outer surface of the connecting pipe 401 and is sealed to the inner wall of the connecting pipe 3.

[0073] a blocking ring 403 , which is provided on the outer surface of the connecting pipe 401 and abuts against the connecting pipe 3 ;

[0074] The liquid inlet and outlet pipes 5 are connected to the liquid cooling plate 2 located at the end of the battery pack 1 and pass through the inner wall of the battery pack 1 and extend to the outside of the battery pack 1. The liquid inlet and outlet pipes 5, the liquid cooling plate 2, the connecting pipe 3 and the connecting pipe 401 constitute a liquid cooling flow path.

[0075] In a preferred embodiment of the CTP whole-pack liquid cooling structure, a scale line 6 is provided on the bottom wall of the battery pack 1 .

[0076] In a preferred embodiment of the CTP whole-pack liquid cooling structure, the scale line 6 extends along the central axis of the bottom wall of the battery pack 1 .

[0077] In a preferred embodiment of the CTP whole-pack liquid cooling structure, a plurality of liquid cooling plates 2 are adjustable in position along the scale line 6 and distributed on the bottom wall of the battery pack.

[0078] In a preferred embodiment of the CTP package liquid cooling structure, the liquid cooling plate 2 is a hollow rectangular plate.

[0079] In a preferred embodiment of the CTP whole-pack liquid cooling structure, a plurality of liquid cooling plates 2 are arranged in an array on the bottom wall of the battery pack 1 .

[0080] In a preferred embodiment of the CTP package liquid cooling structure, two limiting mechanisms 7 are symmetrically arranged outside each liquid cooling plate 2 .

[0081] In a preferred embodiment of the CTP package liquid cooling structure, the connecting pipe 3 is a curved pipe.

[0082] In a preferred embodiment of the CTP whole package liquid cooling structure, the CTP whole package liquid cooling structure is a symmetrical structure.

[0083] In one embodiment, a CTP package liquid cooling structure includes:

[0084] The battery pack 1 has a scale mark 6 on its bottom wall;

[0085] Multiple liquid cooling plates 2, which are adjustably arranged on the bottom wall of the battery pack 1, and the liquid cooling plates 2 are hollow structures;

[0086] A plurality of connecting pipes 3, which are arranged on the outside of the liquid cooling plate;

[0087] The connecting mechanism 4 is connected to the adjacent connecting pipes 3, and the connecting mechanism 4 includes:

[0088] The connecting pipe 401 is connected between the two connecting pipes 3.

[0089] The rubber sleeve 402 is fixedly connected to the outer surface of the connecting pipe 401 and is sealed to the inner wall of the connecting pipe 3.

[0090] a blocking ring 403 , which is provided on the outer surface of the connecting pipe 401 and abuts against the connecting pipe 3 ;

[0091] The liquid inlet and outlet pipes 5 are connected to the liquid cooling plate 2 at the end of the battery pack 1 and extend through the inner wall of the battery pack 1 to the outside of the battery pack 1. The liquid inlet and outlet pipes 5, the liquid cooling plate 2, the connecting pipe 3 and the connecting pipe 401 constitute a liquid cooling flow path;

[0092] The limiting mechanism 7 includes:

[0093] The limiting cylinder 707 is fixedly connected to the liquid cooling plate 2.

[0094] The connecting rod 703 is slidably connected to the limiting cylinder 707.

[0095] The pull rod 702 has one end connected to one end of the connecting rod 703 located in the limiting cylinder 707, and the other end extending out of the limiting cylinder 707 and connected to the pull plate 701.

[0096] The first spring 706 is sleeved on the pull rod 702 and located between the inner wall of the limiting cylinder 707 and the connecting rod 703.

[0097] Install the slide plate 704, which is fixedly connected to the other end of the connecting rod 703 outside the limiting cylinder 707.

[0098] A rubber plate 705 , which is fixedly connected to the mounting slide plate 704 and abuts against the inner wall of the battery pack 1 ;

[0099] Release the limit mechanism 8, which includes,

[0100] The limiting groove 804 is provided on the outer surface of the connecting rod 703.

[0101] Normally, the groove 805 is formed on the outer surface of the connecting rod 703.

[0102] The lifting rod 802 passes through the limiting cylinder 707 and is movably inserted into the limiting groove 804 or the normal groove 805. The top end of the lifting rod 802 is fixedly connected to the lifting plate 801.

[0103] The second spring 803 is sleeved on the outer surface of the lifting rod 802 and is located between the lifting plate 801 and the limiting cylinder 707 .

[0104] In one embodiment, a CTP whole-pack liquid cooling structure includes a battery pack 1, the interior of the battery pack 1 is engraved with scale lines 6, a group of liquid cooling plates 2 are placed inside the battery pack 1, the end liquid cooling plate 2 is fixedly connected to the side close to the box with a connecting pipe 3, the liquid cooling plate 2 on both sides of the middle part is fixedly connected to the connecting pipe 3, the connecting pipes 3 are connected to each other through a connecting mechanism 4, the outer surface of the connecting pipe 401 is fixedly connected to two blocking rings 403, the blocking ring 403 is in contact with the outer surface of the connecting pipe 3, the outer surface of the connecting pipe 401 is fixedly connected to a rubber sleeve 402, the outer surface of the rubber sleeve 402 is fixedly connected to the inner wall of the connecting pipe 3, the inner side wall of the end liquid cooling plate 2 is fixedly connected to the liquid inlet and outlet pipes 5, the liquid inlet and outlet pipes 5 pass through the inner wall of the battery pack 1 and extend to the outside of the battery pack 1.

[0105] Two limiting mechanisms 7 are provided on the outside of each liquid cooling plate 2, and a releasing limit mechanism 8 is provided inside each limiting mechanism 7. The limiting cylinder 707 is fixedly connected to the liquid cooling plate 2, and the limiting cylinder 707 is slidingly connected to the pull rod 702 and the connecting rod 703. The pull rod 702 is fixedly connected to the pull plate 701 and the connecting rod 703. The connecting rod 703 is fixedly connected to the mounting slide 704. The mounting slide 704 is fixedly connected to the rubber plate 705, and the rubber plate 705 is in contact with the inner wall of the battery pack 1.

[0106] The limiting groove 804 and the normal groove 805 are opened on the outer surface of the connecting rod 703, the lifting plate 801 is fixedly connected to the lifting rod 802, the lifting rod 802 is in contact with the limiting groove 804, and the second spring 803 is sleeved on the outer surface of the lifting rod 802. The lifting rod 802 is fixedly connected to the lifting plate 801 and the limiting cylinder 707.

[0107] The specific assembly method is as follows:

[0108] First, place the liquid cooling plate 2 at the end inside the battery pack 1, and extend the liquid inlet and outlet pipes 5 through the through-holes on the inner wall of the battery pack 1 to the outside of the battery pack 1. By pulling the lifting plate 801 upward, the lifting rod 802 can be driven to release the limit on the flat groove 805. Under the elastic force of the first spring 706, the connecting rod 703, the mounting slide 704 and the rubber plate 705 can be driven to move, so that the rubber plate 705 can contact the inner wall of the battery pack 1. Under the synchronous action of the two rubber plates 705, the positioning effect of the liquid cooling plate 2 can be achieved.

[0109] Then place the liquid cooling plate 2 in the middle part inside the battery pack 1. By observing the scale line 6, the position of the liquid cooling plate 2 can be determined. During this period, the position of the liquid cooling plate 2 can be adjusted at will. Then, the liquid cooling plate 2 is positioned using the limiting mechanism 7 and the releasing limiting mechanism 8, and the connecting pipe 401 is inserted into the interior of the connecting pipe 3. This can realize the connection between the two liquid cooling plates 2, so that the coolant can pass through the interior of each liquid cooling plate 2.

[0110] Finally, the liquid delivery pipe and the liquid extraction pipe of the external device are connected to the two liquid inlet and outlet pipes 5 respectively, and the assembly of the device is completed.

[0111] Finally, it should be noted that the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of this application.

[0112] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A CTP whole package liquid cooling structure, characterized in that: It includes, Battery pack; Multiple liquid cooling plates, which are adjustably arranged on the bottom wall of the battery pack, and the liquid cooling plates are hollow structures; The limiting mechanism includes: A limiting cylinder, which is fixedly connected to the liquid cooling plate, A connecting rod is slidably connected to the limiting cylinder. A pull rod, one end of which is connected to one end of the connecting rod located in the limiting cylinder, and the other end of which extends out of the limiting cylinder and is connected to the pull plate. The first spring is sleeved on the pull rod and located between the inner wall of the limiting cylinder and the connecting rod. Install the slide plate, which is fixedly connected to the other end of the connecting rod outside the limiting cylinder, a rubber plate fixedly connected to the mounting slide plate and abutting against an inner wall of the battery pack; Release the limit mechanism, which includes: The limiting groove is provided on the outer surface of the connecting rod. Normal groove, which is opened on the outer surface of the connecting rod, A lifting rod passes through the limiting cylinder and is movably inserted into the limiting groove or the normal groove. The top end of the lifting rod is fixedly connected to the lifting plate. The second spring is sleeved on the outer surface of the lifting rod and is located between the lifting plate and the limiting cylinder.

2. The CTP package liquid cooling structure according to claim 1, characterized in that: Also includes, A plurality of connecting pipes are connected and arranged on the outside of the liquid cooling plate; A communication mechanism, which connects adjacent connecting pipes, the communication mechanism includes: A connecting pipe, which is connected between the two connecting pipes, A rubber sleeve, which is fixedly connected to the outer surface of the connecting pipe and sealed to the inner wall of the connecting pipe, a blocking ring, which is provided on the outer surface of the connecting pipe and abuts against the connecting pipe; The liquid inlet and outlet pipes are connected to the liquid cooling plate located at the end of the battery pack and pass through the inner wall of the battery pack and extend to the outside of the battery pack. The liquid inlet and outlet pipes, the liquid cooling plate, the connecting pipe and the connecting pipe constitute a liquid cooling flow path.

3. The CTP package liquid cooling structure according to claim 1, characterized in that: The bottom wall of the battery pack is provided with scale lines.

4. The CTP package liquid cooling structure according to claim 3, characterized in that: The scale line extends along the central axis of the bottom wall of the battery pack.

5. The CTP package liquid cooling structure according to claim 3, characterized in that: A plurality of liquid cooling plates are adjustably distributed on the bottom wall of the battery pack along the scale lines.

6. The CTP package liquid cooling structure according to claim 1, characterized in that: The liquid cooling plate is a hollow rectangular plate.

7. The CTP package liquid cooling structure according to claim 1, characterized in that: Multiple liquid cooling plates are arranged in an array on the bottom wall of the battery pack.

8. The CTP package liquid cooling structure according to claim 1, characterized in that: Two limiting mechanisms are symmetrically arranged on the outside of each liquid cooling plate.

9. The CTP package liquid cooling structure according to claim 2, characterized in that: The connecting pipe is a curved pipe.

10. The CTP package liquid cooling structure according to claim 1, characterized in that: The CTP package liquid cooling structure is symmetrical.

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