CTP battery pack

Abstract

The utility model relates to the technical field of CTP battery packs, and provides a CTP battery pack which comprises a bottom plate, a box body and a cross beam, the box body is arranged on the bottom plate and used for storing batteries, the box wall of the box body is a single-layer box wall, a plurality of reinforcing rib grooves are formed in the outer wall of the box body, and the cross beam is arranged in the reinforcing rib grooves. A plurality of reinforcing rib protrusions opposite to the reinforcing rib grooves are formed on the inner wall of the box body and extend in the height direction of the box body. The reinforcing rib grooves and the reinforcing rib protrusions are arranged to be combined into the reinforcing ribs to reinforce the side walls of the box body, so that the overall strength requirement of the box body can be met when only one layer of the box body is arranged, the manufacturing cost consumed by arranging the box walls into multiple layers is reduced, the structural strength of the box body is increased from the interior by arranging the cross beams, and the service life of the box body is prolonged. And meanwhile, the batteries can be conveniently combed, separated and stored, so that two adjacent batteries are prevented from being collided and abraded, the use stability of the batteries is improved, and the use is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to CTP battery pack technical field especially relates to a CTP battery pack. BACKGROUND

[0002] CTP battery pack is mainly used for the energy storage system of electric vehicle. In the use of CTP battery pack, the endurance mileage of CTP battery pack has higher requirement, under the premise of the volume of battery pack, more lithium batteries are contained in the battery pack, and increasing the number of batteries becomes the first choice.

[0003] The invention with the publication number CN115706289A proposes a box for CTP battery pack, CTP battery pack and vehicle, wherein the box for CTP battery pack comprises: bottom wall; side wall, the side wall is connected on the bottom wall, and the bottom wall and the side wall jointly enclose the containing space for containing multiple single batteries; a plurality of clamping parts are arranged on the bottom wall and spaced along the first direction, and each clamping part is used for clamping connection with a single battery. However, the conventional CTP battery pack contains more structure parts, in order to ensure the overall structural strength of the CTP battery pack box, the box wall of the CTP battery pack is usually set to be multi-layer, the multi-layer box wall setting not only has high cost, but also will cause the overall weight energy density of the CTP battery pack to be reduced, therefore the present scheme proposes a CTP battery pack to solve the above problems. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides a CTP battery pack, by setting the improvement of the box side wall structure, only setting a layer can realize the overall strength requirement of the box, reduces the manufacturing cost consumed by setting the box wall to be multi-layer, improves the weight energy density of the CTP battery pack of the present application.

[0005] The technical scheme of the utility model is realized as follows: the utility model provides a CTP battery pack, which comprises a bottom plate, a box and a cross beam, wherein,

[0006] The box is arranged on the bottom plate and is used for storing batteries, the box wall of the box is a single-layer box wall, the outer wall of the box is provided with a plurality of reinforcing rib grooves, and the inner wall of the box is formed with a plurality of reinforcing rib protrusions in the opposite positions of the reinforcing rib grooves, a plurality of the reinforcing rib protrusions extend in the height direction of the box and are equidistantly distributed in the length direction of the box;

[0007] The cross beam is arranged in the interior of the box and is connected with the reinforcing rib protrusions through mounting bolts, and two reinforcing rib protrusions distributed in the width direction of the box are respectively located at the two ends of the cross beam.

[0008] On the basis of the above technical scheme, preferably, it further comprises a partition plate, wherein,

[0009] A partition plate is arranged in the interior of the box body and is located on both sides of the reinforcing rib protrusion in the length direction of the box body, both ends of the partition plate extend to both ends of the box body in the height direction of the box body, for shielding the reinforcing rib protrusion, and the battery is located between the two partition plates.

[0010] On the basis of the above technical scheme, preferably, the cross beam is a hollow beam, and a support frame is arranged in the interior of the cross beam, and the support frame is fixedly connected with both sides of the cross beam.

[0011] On the basis of the above technical scheme, preferably, the number of support frames is multiple, and the multiple support frames are equidistantly distributed in the height direction of the box body, bolt holes are formed in the support frames, and the mounting bolts are threadedly connected with the bolt holes through the reinforcing rib protrusions.

[0012] On the basis of the above technical scheme, preferably, a liquid cooling flow channel is formed in the interior of the bottom plate.

[0013] On the basis of the above technical scheme, preferably, a receiving cavity is formed between the cross beam at one end and the box body, and an isolation gap is formed between the cross beam at the other end and the box body, and the receiving cavity is used for accommodating the BMS element.

[0014] On the basis of the above technical scheme, preferably, a top sealing ring is arranged at the top of the box body, and a bottom sealing ring is arranged at the bottom of the box body, the bottom sealing ring is located between the bottom plate and the box body, and is sealingly attached to the bottom end of the peripheral wall of the box body.

[0015] On the basis of the above technical scheme, preferably, a sealing surface is arranged on the bottom wall of the box body cavity, and the sealing surface covers the bottom wall of the box body cavity.

[0016] On the basis of the above technical scheme, preferably, a threaded column is further included, wherein,

[0017] The threaded column is arranged at the bottom of the cross beam, a connecting hole is formed in the bottom plate for the threaded column to pass through, and a thread is arranged on the inner wall of the threaded column.

[0018] On the basis of the above technical scheme, preferably, an O-shaped sealing ring is arranged on the outer wall of the threaded column, and sealingly attached to the bottom plate and the cross beam.

[0019] The CTP battery pack of the utility model has the following beneficial effects relative to the prior art:

[0020] (1) By setting the reinforcing rib groove and the reinforcing rib protrusion to be combined with each other as a reinforcing rib, the side wall of the box body is strengthened, so that the box body of the application does not need to be provided with a multi-layer structure, and the overall strength requirement of the box body can be met when only one layer is provided, thereby improving the weight energy density of the CTP battery pack of the application. By setting the cross beam to abut the box body from both ends in the width direction of the box body, not only the structural strength of the box body is increased from the inside, but also the battery is conveniently combed, isolated and stored, thereby preventing the adjacent two batteries from rubbing and wearing, and improving the use stability of the battery.

[0021] (2) By the partition plate isolating the reinforcing rib protrusion and the battery, the battery can be limited in the width direction of the battery, so as to ensure the position stability of the battery in the box body and prevent the battery from moving to the reinforcing rib protrusion and being unable to be limited in the horizontal direction. By installing the bolt to connect the cross beam, the cross beam of the application is detachable, and since the plurality of reinforcing rib protrusions are equidistantly distributed in the length direction of the box body, the cross beam is conveniently connected with any reinforcing rib protrusion, thereby facilitating the adjustment of the position of the cross beam according to the size of the battery, and convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Figure 1 It is a perspective view of the CTP battery pack of the present application;

[0024] Figure 2 It is a bottom view of the CTP battery pack of the present application;

[0025] Figure 3 It is a front view of the CTP battery pack of the present application;

[0026] Figure 4 It is a perspective view of the CTP battery pack of the present application; Figure 3 It is an enlarged schematic view of B shown in the drawing;

[0027] Figure 5 It is a structural schematic view of the bottom plate and the cross beam of the CTP battery pack of the present application;

[0028] Figure 6 It is a perspective view of the CTP battery pack of the present application; Figure 2 It is a sectional view of the structure at A-A shown in the drawing;

[0029] Figure 7The utility model discloses a CTP battery pack's Figure 6 The enlarged schematic view at C is shown.

[0030] In the drawing: 1, bottom plate; 11, storage cavity; 12, isolation gap; 13, connecting hole; 2, box; 21, reinforcing rib groove; 22, reinforcing rib protrusion; 3, crossbeam; 31, support frame; 311, bolt hole; 4, mounting bolt; 5, partition; 61, top sealing ring; 62, bottom sealing ring; 63, sealing surface; 64, O-shaped sealing ring; 71, threaded column; 10, battery. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0032] As Figures 1 to 7 The utility model discloses a CTP battery pack, including bottom plate 1, box 2 and crossbeam 3, wherein, the box 2 sets up on bottom plate 1, is used to store battery 10, and the box wall of box 2 is single layer box wall, and the outer wall of box 2 is set up with multiple reinforcing rib grooves 21, and the inner wall of box 2 forms multiple reinforcing rib protrusions 22 with the opposite position of reinforcing rib groove 21, multiple reinforcing rib protrusions 22 extend in the height direction of box 2, and are equidistantly distributed in the length direction of box 2, and the crossbeam 3 sets up in the inside of box 2 and is connected with reinforcing rib protrusion 22 through mounting bolt 4, and two reinforcing rib protrusions 22 distributed in the width direction of box 2 are located at the both ends of crossbeam 3 respectively.

[0033] Figure 1 The length direction of box 2 is X direction, the width direction of box 2 is Y direction, and the height direction of box 2 is Z direction.

[0034] In the application, the reinforcing rib groove 21 and the reinforcing rib protrusion 22 are naturally stamped and formed during the molding process of the box body 2, without the need for additional processing, saving processing costs. The reinforcing rib groove 21 and the reinforcing rib protrusion 22 are combined with each other to form the reinforcing rib of the box body 2 of the application, and the side wall of the box body 2 is strengthened by the reinforcing rib protrusion 22, so that the box body 2 of the application does not need to be provided with a multi-layer structure, and the overall strength requirement of the box body 2 can be met when only one layer is provided, thereby improving the weight energy density of the CTP battery pack of the application. The cross beam 3 is arranged to abut the box body 2 from both ends in the width direction of the box body 2, which not only increases the structural strength of the box body 2 from the inside, but also facilitates the combing, isolation and storage of the battery 10, thereby preventing the adjacent two batteries 10 from rubbing and wearing, and improving the use stability of the battery 10, thereby facilitating use.

[0035] As a preferred embodiment, the application further comprises a partition plate 5, wherein the partition plate 5 is arranged inside the box body 2 and located on both sides of the reinforcing rib protrusion 22 in the length direction of the box body 2, both ends of the partition plate 5 extend to both ends of the box body 2 in the height direction of the box body 2, for shielding the reinforcing rib protrusion 22, and the battery 10 is located between the two partition plates 5.

[0036] By isolating the reinforcing rib protrusion 22 and the battery 10 with the partition plate 5, the battery 10 can be limited in the width direction of the battery 10, ensuring the positional stability of the battery 10 in the box 1, preventing the battery from moving to the reinforcing rib protrusion and causing the battery 10 to be unable to be limited in the horizontal direction. The cross beam 3 is connected by the mounting bolt 4, so that the cross beam 3 of the application is detachable. Since the plurality of reinforcing rib protrusions 22 are equidistantly distributed in the length direction of the box body 2, it is convenient to adjust the connection between the cross beam 3 and any reinforcing rib protrusion 22, thereby facilitating the adjustment of the position of the cross beam 3 according to the size of the battery 10, and facilitating use.

[0037] As a preferred embodiment, the cross beam 3 is a hollow beam, and the inside of the cross beam 3 is provided with a support frame 31, and the support frame 31 is fixedly connected with both sides of the cross beam 3.

[0038] The number of support frames 31 is multiple, and the multiple support frames 31 are equidistantly distributed in the height direction of the box body 2, and the support frame 31 is provided with a bolt hole 311, and the mounting bolt 4 is threadedly connected with the bolt hole 311 through the reinforcing rib protrusion 22.

[0039] In this way, by arranging the cross beam 3 as a hollow beam, the manufacturing cost of the cross beam 3 is saved compared with the solid cross beam 3, and by arranging the support frame 31 to support the cross beam 3 from the inside of the cross beam 3, the structural strength of the cross beam 3 is provided.

[0040] As a preferred embodiment, the inside of the bottom plate 1 is formed with a liquid cooling flow channel.

[0041] In this way, the bottom plate 1 is a liquid cooling plate.

[0042] As a preferred embodiment, a receiving cavity 11 is formed between the one end cross beam 3 and the box body 2, and an isolation gap 12 is formed between the other end cross beam 3 and the box body 2, and the receiving cavity 11 is used for receiving the BMS elements.

[0043] By setting the isolation gap 12 between the other end cross beam 3 and the box body 2, the cross beam 3 can shield the end battery 10, preventing the battery 10 from directly contacting the side wall of the box body 2, and further preventing the battery 10 from being impacted and worn.

[0044] As a preferred embodiment, the top of the box body 2 is provided with a top sealing ring 61, and the bottom of the box body 2 is provided with a bottom sealing ring 62, and the bottom sealing ring 62 is located between the bottom plate 1 and the box body 2 and is sealingly attached to the bottom end of the peripheral wall of the box body 2.

[0045] The top sealing ring 61 is used to seal the box body 2 and the box cover when the box cover is connected to the box body 2, and the bottom sealing ring 62 is used to seal the connection between the box body 2 and the bottom plate 1.

[0046] As a preferred embodiment, the bottom wall of the inner cavity of the box body 2 is provided with a sealing surface 63, and the sealing surface 63 covers the bottom wall of the inner cavity of the box body 2.

[0047] As a preferred embodiment, it further comprises a threaded column 71, wherein the threaded column 71 is arranged at the bottom of the cross beam 3, and the bottom plate 1 is provided with a connecting hole 13 for the threaded column 71 to pass through, and the inner wall of the threaded column 71 is provided with threads.

[0048] The outer wall of the threaded column 71 is provided with an O-shaped sealing ring 64 which is sealingly attached to the bottom plate 1 and the cross beam 3.

[0049] In the specific implementation, after the entire battery pack is assembled with the vehicle bottom plate, the threaded column 71 is screwed with the bolt passing through the vehicle bottom plate, thereby completing the connection between the vehicle bottom plate and the battery pack, which is convenient to assemble without using other structural members to assist the assembly, and improves the weight energy density.

[0050] Preferably, the materials of the sealing ring and the sealing surface 63 can be fluorine rubber, which is used to prevent external water from entering the inside of the battery pack.

[0051] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A CTP battery pack characterized by: It comprises a bottom plate (1), a box body (2) and a crossbeam (3), wherein, The box body (2) is arranged on the bottom plate (1) and used for storing batteries (10), the box wall of the box body (2) is a single-layer box wall, the outer wall of the box body (2) is provided with a plurality of reinforcing rib grooves (21), and the inner wall of the box body (2) is formed with a plurality of reinforcing rib protrusions (22) in opposite positions of the reinforcing rib grooves (21), a plurality of the reinforcing rib protrusions (22) extend in the height direction of the box body (2) and are equidistantly distributed in the length direction of the box body (2); The crossbeam (3) is arranged in the inside of the box body (2) and connected with the reinforcing rib protrusions (22) through mounting bolts (4), and two reinforcing rib protrusions (22) distributed in the width direction of the box body (2) are respectively located at two ends of the crossbeam (3).

2. The CTP battery pack of claim 1, wherein: It further comprises a partition plate (5), wherein, The partition plate (5) is arranged in the inside of the box body (2) and located at two sides of the reinforcing rib protrusions (22) in the length direction of the box body (2), two ends of the partition plate (5) respectively extend to two ends of the box body (2) in the height direction of the box body (2) to shield the reinforcing rib protrusions (22), and the batteries (10) are located between two partition plates (5).

3. The CTP battery pack of claim 1, wherein: The crossbeam (3) is a hollow beam, and the inside of the crossbeam (3) is provided with a support frame (31) fixedly connected with two sides of the crossbeam (3).

4. The CTP battery pack of claim 3, wherein: The number of the support frame (31) is a plurality, and a plurality of the support frame (31) are equidistantly distributed in the height direction of the box body (2), the support frame (31) is provided with a bolt hole (311), and the mounting bolt (4) is threadedly connected with the bolt hole (311) through the reinforcing rib protrusion (22).

5. The CTP battery pack of claim 1, wherein: The inside of the bottom plate (1) is formed with a liquid cooling flow channel.

6. The CTP battery pack of claim 1, wherein: One end of the crossbeam (3) and the box body (2) form a receiving cavity (11), and the other end of the crossbeam (3) and the box body (2) form an isolation gap (12), and the receiving cavity (11) is used for receiving BMS elements.

7. The CTP battery pack of claim 1, wherein: The top of the box body (2) is provided with a top sealing ring (61), and the bottom of the box body (2) is provided with a bottom sealing ring (62), the bottom sealing ring (62) is located between the bottom plate (1) and the box body (2) and is sealingly attached to the bottom end of the peripheral wall of the box body (2).

8. The CTP battery pack of claim 1, wherein: The bottom wall of the inner cavity of the box body (2) is provided with a sealing surface (63), and the sealing surface (63) covers the bottom wall of the inner cavity of the box body (2).

9. The CTP battery pack of claim 1, wherein: It further comprises a threaded column (71), wherein, The threaded column (71) is arranged at the bottom of the crossbeam (3), the bottom plate (1) is provided with a connecting hole (13) through which the threaded column (71) passes, and the inner wall of the threaded column (71) is provided with threads.

10. The CTP battery pack of claim 9, wherein: The outer wall of the threaded column (71) is provided with an O-shaped sealing ring (64) sealingly attached to the bottom plate (1) and the crossbeam (3).

Images