Integrated battery pack

Abstract

The utility model belongs to an integrated battery pack in the technical field of ship power batteries. The front part and the rear part of the battery box body (1) are respectively provided with a box body side plate (19) which is shrunk inwards, the front end and the rear end of the battery box body (1) are respectively connected with a wire harness protection plate (2), a wire harness arrangement cavity is formed between each wire harness protection plate (2) and the corresponding box body side plate (19), the battery modules (7) comprise a plurality of layers, and the side surface of each layer of battery module (7) is provided with a module supporting plate (20). And a module base plate (21) is arranged on the lower surface of the battery module (7). The integrated battery pack disclosed by the utility model is simple in structure, the wiring harness arrangement space is effectively guaranteed while integration is realized, the problems of weathering and potential safety hazards caused by exposure of the wiring harness are avoided, the supporting reliability of battery module arrangement is improved, the overall safety performance is improved, and the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of ship power batteries, and more specifically, relates to an integrated battery pack. Background Art

[0002] Currently, for high-capacity battery systems, a common method is to connect multiple battery packs in series and parallel to achieve the corresponding voltage platform and power. If this method is used to form the battery pack, the battery pack needs to be installed on a mounting bracket, which results in low spatial integration of the battery pack. In addition, the battery wiring harness is exposed, posing a risk of weathering and safety hazards, and performance cannot be guaranteed.

[0003] In the prior art, there is a technology entitled "A box and a battery pack using the same" and with publication number "CN117477145A", which discloses a box and a battery pack using the same. The box includes a top plate, a bottom plate, and a cylinder, which together form a cavity. The inner sidewall of the cavity is fixedly provided with a support frame for fixing at least two large-capacity batteries side by side. The two parallel first side walls of the cylinder are each provided with a plurality of mounting holes for matching with the lead terminals of the large-capacity batteries, as well as at least one pair of first through holes for extending the heat exchange tubes of the heat exchange unit in the large-capacity battery out of the cavity; and a second through hole for leading the flue gas manifold out of the cavity. Any one of the two parallel second side walls of the cylinder is provided with at least one protective cover for placing the BMS system in the large-capacity battery. The present invention has the advantages of compact structure, simple electrical connection and transmission structure, high integration, safety and reliability. However, this technology does not address the technical problems and technical solutions of the present application. Utility Model Content

[0004] The technical problem to be solved by the present invention is: in view of the deficiencies of the existing technology, to provide an integrated battery pack with a simple structure, which effectively guarantees the wiring harness layout space while realizing integration, avoids the wiring harness being exposed to the outside and causing weathering and potential safety hazards, improves the support reliability of the battery module layout, and improves the overall safety performance and service life.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is:

[0006] The utility model is an integrated battery pack. The front and rear of the battery box are respectively provided with inward-retracted box side panels. The front and rear ends of the battery box are respectively connected to the wiring harness protection plates. A wiring harness arrangement cavity is formed between each wiring harness protection plate and the corresponding box side panel. The battery module includes multiple layers. A module support plate is provided on the side of each layer of battery module, and a module pad is provided on the lower surface of the battery module.

[0007] The upper portion of the battery box is connected to the box cover, and a plurality of battery modules are arranged in a cavity formed between the battery box and the box cover, and the plurality of battery modules are stacked up and down.

[0008] A protective cover is provided on the upper portion of the box cover, and a PDU module and a liquid cooling unit are provided inside a cavity formed by the protective cover and the box cover.

[0009] A module support plate is provided on each side of each layer of battery modules, and each module support plate of the battery modules is connected to the module pad of the battery module located on the upper layer.

[0010] Cold liquid plates are arranged between adjacent battery modules, and each cold liquid plate is connected to a liquid cooling pipeline.

[0011] The battery module includes a first battery module, a second battery module, and a third battery module, and the first battery module, the second battery module, and the third battery module are stacked from bottom to top.

[0012] A first module support plate is set on the front side of the first battery module, a second module support plate is set on the rear side of the first battery module, a third module support plate is set on the front side of the second battery module, a fourth module support plate is set on the rear side of the second battery module, a fifth module support plate is set on the front side of the third battery module, and a sixth module support plate is set on the rear side of the third battery module.

[0013] The first module pad is set near the front of the lower surface of the second battery module, the second module pad is set near the rear of the lower surface of the second battery module, the third module pad is set near the front of the lower surface of the third battery module, and the fourth module pad is set near the rear of the lower surface of the third battery module.

[0014] The lower part of each side of the outer side of the battery box is provided with mounting feet respectively. The mounting feet at the front of the battery box are connected to a longitudinal beam at the front of the battery box, and the mounting feet at the rear of the battery box are connected to a longitudinal beam at the rear of the battery box.

[0015] A plurality of longitudinal beams and a plurality of transverse beams are arranged inside the battery box, and a plurality of convex ribs are arranged outside the battery box.

[0016] The technical solution of this utility model is adopted, and the working principle and beneficial effects are as follows:

[0017] The integrated battery pack described in the present invention is provided with a battery box when the structure is set up. The box serves as a carrier for accommodating the battery module, and the battery module includes multiple battery modules, which are stacked up and down. The front and rear ends of the battery box are respectively connected to the wiring harness protection plates, and a wiring harness arrangement cavity is formed between each wiring harness protection plate and the corresponding box side plate. In this way, a wiring harness arrangement cavity is formed between each wiring harness protection plate and the corresponding box side plate to accommodate the wiring harness, ensuring that the wiring harness is located in the cavity and is neither squeezed nor exposed to the outside, eliminating the hidden danger of weathering. When the battery modules are arranged, a module support plate is fixedly set on the side of each layer of battery modules, and a module pad is set on the lower surface of the battery module. The module support plate of each battery module is connected to the module pad of the battery module on the upper layer. In this way, a reliable connection of the battery module is achieved, and the battery module on the bottom layer can be connected to the bottom of the battery box by bolts to achieve structural fixation of the battery module. The structure of the utility model sets up the battery pack according to the integrated concept. On the one hand, it ensures the integrated arrangement of various components, reduces the volume, and reduces the space occupied by the battery pack when in use. On the other hand, it ensures that the battery module is fixed and connected reliably, and the wiring harness is reliably arranged, reducing the safety hazards and differentiation risks caused by exposed cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following is a brief description of the contents and symbols in the drawings of this specification:

[0019] Figure 1 This is a schematic structural diagram of the integrated battery pack described in the present utility model;

[0020] Figure 2 This is a schematic diagram of the exploded structure of the integrated battery pack described in the present utility model;

[0021] The marks in the accompanying drawings are: 1-battery box, 2-wiring harness protection plate, 3-box cover, 4-protective cover, 5-PDU module, 6-liquid cooling unit, 7-battery module, 8-first module support plate, 9-second module support plate, 10-third module support plate, 11-fourth module support plate, 12-fifth module support plate, 13-sixth module support plate, 14-first module pad, 15-second module pad, 16-third module pad, 17-fourth module pad, 18-liquid cooling pipeline, 19-box side panel, 20-module support plate, 21-module pad, 22-first battery module, 23-second battery module, 24-third battery module, 25-mounting foot, 26-convex rib. DETAILED DESCRIPTION

[0022] The following is a detailed description of the embodiments of the present invention, such as the shapes, structures, positions and connections of the various components involved, the functions and working principles of the various components, etc., by referring to the accompanying drawings.

[0023] As attached Figure 1 , Attachment Figure 2 As shown, the utility model is an integrated battery pack, the front and rear of the battery box 1 are respectively provided with inward-retracted box side panels 19, the front and rear ends of the battery box 1 are respectively connected to the wire harness protection plate 2, and a wire harness arrangement cavity is formed between each wire harness protection plate 2 and the corresponding box side panel 19. The battery module 7 includes multiple layers, and a module support plate 20 is provided on the side of each layer of battery module 7, and a module pad 21 is provided on the lower surface of the battery module 7. The above structure proposes an improved technical solution to address the deficiencies in the existing technology. When the structure is set, a battery box is set, and the box serves as a carrier for accommodating the battery module, and the battery module includes multiple battery modules, and the multiple battery modules are stacked up and down. The front and rear ends of the battery box 1 are respectively connected to the wiring harness protection plates 2, and a wiring harness arrangement cavity is formed between each wiring harness protection plate 2 and the corresponding box side plate 19. In this way, a wiring harness arrangement cavity is formed between each wiring harness protection plate 2 and the corresponding box side plate 19 to accommodate the wiring harness, ensuring that the wiring harness is located in the cavity and will not be squeezed, thereby ensuring reliability of use, and will not be exposed to the outside, thereby eliminating the hidden dangers of weathering. When the battery modules 7 are arranged, a module support plate 20 is fixedly set on the side of each layer of battery modules 7, and a module pad 21 is set on the lower surface of the battery module 7. The module support plate 20 of each battery module 7 is connected to the module pad 21 of the battery module 7 on the upper layer, thereby achieving reliable connection of the battery modules, and the battery modules on the bottom layer can be connected to the bottom of the battery box 1 by bolts to achieve structural fixation of the battery modules. The structure of this utility model adopts an integrated design concept to arrange the battery pack. On the one hand, it ensures the integrated layout of various components, reducing the volume and space occupied by the battery pack during use. On the other hand, it ensures the reliable fixation and connection of the battery module and the reliable layout of the wiring harness, reducing the safety hazards and fragmentation risks caused by exposed cables. The integrated battery pack described in this utility model has a simple structure. While achieving integration, it effectively ensures the layout space of the wiring harness, avoiding the weathering and safety hazards caused by the exposed wiring harness, and improves the support reliability of the battery module layout, thereby improving overall safety performance and service life.

[0024] The upper portion of the battery case 1 is connected to the case cover 3. Multiple battery modules 7 are arranged in a stacked arrangement within the cavity formed between the battery case 1 and the case cover 3. In this structure, the case cover is connected to the upper portion of the battery case and secured with bolts. The battery modules are securely arranged within the cavity formed by the battery case 1 and the case cover 3.

[0025] A protective cover 4 is installed on the upper portion of the box cover 3. The PDU module 5 and liquid cooling unit 6 are housed within the cavity formed by the protective cover 4 and the box cover 3. In the above structure, the protective cover 4 and the box cover 3 are connected by bolts. The PDU module 5 and liquid cooling unit 6 are installed within the cavity formed by the protective cover 4 and the box cover 3. The PDU module 5 and liquid cooling unit 6 are respectively fixed to the box cover 3. The installation and removal of the protective cover 4 are extremely convenient and quick. The liquid cooling unit includes a coolant circulation pump connected to the liquid cooling pipeline for circulating cooling of the coolant.

[0026] Each layer of battery modules 7 is equipped with a module support plate 20 on each side. Each module support plate 20 is connected to the module backing plate 21 of the battery module 7 located above. In this structure, multiple longitudinal and transverse beams are installed on the floor of the battery case to secure the battery modules located on the bottom layer and their front and rear module support plates. The longitudinal beams extend to the front and rear edges of the battery in the X direction. While securing the battery modules, footrests are installed to enhance the fixing strength. Reinforcing ribs are installed on the module supports and the internal cavity walls of the battery case to strengthen the battery case in the Z direction. This ensures both the fixation and strength of the battery modules.

[0027] Cooling plates are installed between adjacent battery modules 7, each connected to a cooling line 18. In this structure, the ends of the cooling lines 18 are located within the wiring harness cavity formed between the wiring harness protection plate 2 and the corresponding box side panel 19, providing reliable protection. Each branch of the cooling line 18 extends to the cooling plate of the corresponding battery module to deliver coolant.

[0028] As an embodiment, the battery module 7 includes a first battery module 22, a second battery module 23, and a third battery module 24. The first battery module 22, the second battery module 23, and the third battery module 24 are stacked from bottom to top. A first module support plate 8 is provided on the front side of the first battery module 22, a second module support plate 9 is provided on the rear side of the first battery module 22, a third module support plate 10 is provided on the front side of the second battery module 23, a fourth module support plate 11 is provided on the rear side of the second battery module 23, a fifth module support plate 12 is provided on the front side of the third battery module 24, and a sixth module support plate 13 is provided on the rear side of the third battery module 24. A first module backing plate 14 is provided on the lower surface of the second battery module 23, near the front; a second module backing plate 15 is provided on the lower surface of the second battery module 23, near the rear; a third module backing plate 16 is provided on the lower surface of the third battery module 24, near the front; and a fourth module backing plate 17 is provided on the lower surface of the third battery module 24, near the rear. In the above structure, as a specific implementation, three battery modules are provided, reliably achieving the arrangement of the battery modules within the battery case. The specific number of battery modules in the battery pack of the present invention can be set as needed.

[0029] A mounting foot 25 is provided at the lower part of each side of the outer side of the battery box 1. The mounting foot 25 at the front of the battery box 1 is connected to a longitudinal beam located at the front of the battery box 1, and the mounting foot 25 at the rear of the battery box 1 is connected to a longitudinal beam located at the rear of the battery box 1. In the above structure, the mounting foot is used to fix the battery pack on the corresponding component by bolts. A plurality of longitudinal beams and a plurality of cross beams are provided inside the battery box 1. The cross beams and the total amount strengthen the strength of the bottom of the battery box and are used to fix the battery module and its module support plate at the bottom layer. A plurality of ribs 26 are provided on the outside of the battery box 1. The ribs strengthen the strength of the side panels of the box. The upper surface of the box cover is provided with ribs and reinforcing ribs, the lower surface of the box cover is provided with reinforcing ribs, and the reinforcing ribs on the upper surface are used to install the PDU and the liquid cooling unit, and at the same time strengthen the strength of the box cover.

[0030] The integrated battery pack described in the present invention is provided with a battery case 1 when the structure is set up. The battery case 1 serves as a carrier for accommodating the battery module 7, and the battery module 7 includes multiple battery modules, and the multiple battery modules 7 are stacked up and down and placed in the battery case 1. The front and rear ends of the battery case 1 are respectively connected to the wiring harness protection plates 2, and a wiring harness arrangement cavity is formed between each wiring harness protection plate 2 and the corresponding case side plate 19. In this way, a wiring harness arrangement cavity is formed between each wiring harness protection plate 2 and the corresponding case side plate 19 to accommodate the wiring harness, ensuring that the wiring harness is located in the cavity and will not be squeezed, thereby ensuring reliability of use, and will not be exposed to the outside, thereby eliminating the hidden dangers of weathering. When the battery modules 7 are arranged, a module support plate 20 is fixedly set on the side of each layer of battery modules 7, and a module pad 21 is set on the lower surface of the battery module 7. The module support plate 20 of each battery module 7 is connected to the module pad 21 of the battery module 7 located on the upper layer, thus achieving a reliable connection of the battery modules, and the battery module on the bottom layer can be connected to the bottom of the battery box 1 by bolts to achieve the structural fixation of the battery module. The structure of the utility model is arranged according to the integrated concept of the battery pack. On the one hand, it ensures the integrated arrangement of various components, reduces the volume, and reduces the space occupied by the battery pack when in use. On the other hand, it ensures that the battery modules are fixed and connected reliably, and the wiring harness is reliably arranged, reducing the safety hazards and separation risks caused by exposed cables.

[0031] The above is an exemplary description of the present invention in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. An integrated battery pack, characterized in that: The front and rear of the battery box (1) are respectively provided with inwardly contracted box side panels (19), the front and rear of the battery box (1) are respectively connected to the wiring harness protection plate (2), and a wiring harness arrangement cavity is formed between each wiring harness protection plate (2) and the corresponding box side panel (19). The battery module (7) includes multiple layers, and a module support plate (20) is provided on the side of each layer of battery module (7), and a module pad (21) is provided on the lower surface of the battery module (7).

2. The integrated battery pack according to claim 1, wherein: The upper portion of the battery box (1) is connected to the box cover (3), and a plurality of battery modules (7) are arranged in a cavity formed between the battery box (1) and the box cover (3), and the plurality of battery modules (7) are arranged in an upper and lower stacked manner.

3. The integrated battery pack according to claim 2, wherein: A protective cover (4) is provided on the upper portion of the box cover (3), and a PDU module (5) and a liquid cooling unit (6) are provided inside the cavity formed by the protective cover (4) and the box cover (3).

4. The integrated battery pack according to claim 1 or 2, characterized in that: A module support plate (20) is provided on each side of each layer of battery modules (7), and the module support plate (20) of each battery module (7) is connected to the module pad (21) of the battery module (7) located on the upper layer.

5. The integrated battery pack according to claim 1 or 2, characterized in that: Cold liquid plates are provided between adjacent battery modules (7), and each cold liquid plate is connected to a liquid cooling pipeline (18).

6. The integrated battery pack according to claim 4, wherein: The battery module (7) comprises a first battery module (22), a second battery module (23), and a third battery module (24), wherein the first battery module (22), the second battery module (23), and the third battery module (24) are stacked from bottom to top.

7. The integrated battery pack according to claim 6, wherein: A first module support plate (8) is provided on the front side of the first battery module (22), a second module support plate (9) is provided on the rear side of the first battery module (22), a third module support plate (10) is provided on the front side of the second battery module (23), a fourth module support plate (11) is provided on the rear side of the second battery module (23), a fifth module support plate (12) is provided on the front side of the third battery module (24), and a sixth module support plate (13) is provided on the rear side of the third battery module (24).

8. The integrated battery pack according to claim 7, wherein: A first module pad (14) is provided on the lower surface of the second battery module (23) near the front, a second module pad (15) is provided on the lower surface of the second battery module (23) near the rear, a third module pad (16) is provided on the lower surface of the third battery module (24) near the front, and a fourth module pad (17) is provided on the lower surface of the third battery module (24) near the rear.

9. The integrated battery pack according to claim 1 or 2, characterized in that: A mounting foot (25) is provided at the lower portion of each side of the outer side of the battery box (1), the mounting foot (25) at the front of the battery box (1) is connected to a longitudinal beam located at the front of the battery box (1), and the mounting foot (25) at the rear of the battery box (1) is connected to a longitudinal beam located at the rear of the battery box (1).

10. The integrated battery pack according to claim 1 or 2, characterized in that: The battery box (1) is provided with a plurality of longitudinal beams and a plurality of transverse beams inside, and a plurality of convex ribs (26) outside the battery box (1) are provided.

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