Industrial vehicle power battery system

Abstract

The utility model relates to a power battery system of an industrial vehicle. The power battery system comprises a battery module, a PDU module and an assembly outer box, the battery module is fixed in the assembly outer box through a fixing seat, and the fixing seat is arranged in the box bottom of the assembly outer box; the PDU module is fixed at the bottom of the assembly outer box, and the battery module is arranged adjacent to the PDU module; the first end of the battery module is connected with the first end of the PDU module, and the second end of the battery module is connected with the second end of the PDU module; the battery modules and the fixed seats are arranged in a one-to-one correspondence manner; every two adjacent fixing bases are arranged in an abutting mode. The side face, close to the PDU module, of each fixing base is provided with a first-class U-shaped notch. According to the battery system assembly material, the universality of the battery system assembly materials of various models is enhanced, the material cost is more favorably controlled, and the battery system assembly material has higher practicability and economical efficiency and can be produced and used as a universal product.

Description

TECHNICAL FIELD

[0001] The utility model relates to power battery technical field especially relates to an industrial vehicle power battery system. BACKGROUND

[0002] With the continuous enhancement of global environmental protection consciousness, the demand for clean energy transportation tools is also increasing, and vigorously developing electric industrial vehicles has become an important consensus in the industrial field. Industrial vehicles are widely used in warehouse logistics, port transportation and high-altitude operation fields, and there are many vehicle brands and models. Due to the difference in the whole vehicle electrical system or installation space design, the same load vehicle may need to load different size and different electrical system battery assembly, so that the battery manufacturer needs to match different battery design scheme according to the specific needs of each vehicle model. This overall battery pack design (including the arrangement of battery internal cells and the connection design of different electrical components) will consume a lot of manpower and time cost, and is not conducive to the control of battery system material cost. SUMMARY

[0003] Therefore, the utility model provides an industrial vehicle power battery system, which aims to solve the problems of the existing overall battery pack design consuming a lot of manpower and time cost, and being not conducive to the control of battery system material cost.

[0004] To achieve the above-mentioned purpose, the utility model embodiment proposes the following technical scheme: an industrial vehicle power battery system, comprising a battery module, a PDU module and an assembly outer box; the battery module is fixed in the assembly outer box through a fixing seat, and the fixing seat is arranged in the box bottom of the assembly outer box; the PDU module is fixed at the bottom of the assembly outer box, and the battery module and the PDU module are arranged adjacently; the first end of the battery module is connected with the first end of the PDU module, and the second end of the battery module is connected with the second end of the PDU module; the battery module and the fixing seat are arranged one by one; the two adjacent fixing seats are arranged in abutment; the side surface of each fixing seat close to the PDU module is provided with a first type "U" type notch.

[0005] As a preferred embodiment, the battery module is adaptively arranged with the fixing seat; the first type "U" type notch is adaptively arranged with the battery module.

[0006] As a preferred embodiment, the battery module comprises a plurality of module units, and the adjacent module units are connected in series through a wire harness; the module unit is adaptively arranged with the fixing seat; the module unit is adaptively arranged with the first type "U" type notch.

[0007] As a preferred implementation, the module units are standard module units, each of the module units has a voltage of 12.8V; and each of the module units is provided with a BMS slave controller.

[0008] As a preferred implementation, the module units have a capacity of one of 400Ah, 500Ah or 600Ah. In this way, the battery system requirements of different parameters can be matched according to the actual use needs of the user. The module protection level after assembly can reach IP67, which can ensure its diversified use environment.

[0009] As a preferred implementation, the PDU module is connected with an external load; and the PDU module is provided with a BMS, a contactor and a fuse. The BMS, the contactor and the fuse can match different types of BMS, contactor and fuse according to different battery system parameters, so that the battery system requirements of different parameters can be matched according to the actual use needs of the user, and the universality of the system is ensured. The PDU module is a power distribution device of the industrial vehicle power battery system, and is used for receiving the electric energy of the battery module.

[0010] As a preferred implementation, the first end of the battery module is connected with the first end of the PDU module through a first connecting line, and the second end of the battery module is connected with the second end of the PDU module through a second connecting line.

[0011] As a preferred implementation, the first end is a positive end, and the second end is a negative end; or the first end is a negative end, and the second end is a positive end.

[0012] As a preferred implementation, the battery module is adaptively arranged with the assembly outer box.

[0013] As a preferred implementation, the assembly outer box is provided with a second type of U-shaped notch on the side surface close to the battery module, and the two second type of U-shaped notches are symmetrically arranged.

[0014] As a preferred implementation, the bottom of the second type of U-shaped notch is provided with a rotating piece.

[0015] The utility model discloses reached beneficial effect: the application is through the battery module and PDU module are standardized, the modularization setting, make when facing the new demand of similar product, do not need to break up and all reevaluation design scheme to battery system internal all components (include electric core, BMS and electrical annex etc.), and only need to adjust 12.8V standard module unit and the installation mode of PDU module, change the fixed structure of battery system outer box can. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, below will to the drawing needed to use in the embodiment or prior art description simple introduction, obviously, the drawing in the following description only some embodiments of the utility model, for the ordinary skilled person in the art comes, under the premise of not paying creative labor, can also obtain other drawings according to the structure shown in these drawings.

[0017] Figure 1 It is the internal structure schematic diagram of industrial vehicle power battery system of an embodiment of the utility model;

[0018] Figure 2 It is the front view structure schematic diagram of industrial vehicle power battery system of Figure 1 ;

[0019] Figure 3 It is the arrangement structure schematic diagram of battery module of Figure 1 ;

[0020] Figure 4 It is the arrangement structure schematic diagram of battery module of another embodiment.

[0021] The realization of the utility model, functional characteristics and advantages will be further explained with reference to the drawings combined with the embodiment. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present application.

[0023] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, top, bottom, and the like), the directional indications are only used to explain the relative positional relationship, movement condition and the like between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0024] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or can be integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a middle element.

[0026] In addition, if the embodiments of the present application involve "first", "second" and the like, the "first", "second" and the like are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0027] Specifically, as Figures 1 to 3As shown, the utility model discloses the following technical scheme: an industrial vehicle power battery system, including battery module 10, PDU module 20 and assembly outer box 30, battery module 10 is fixed in assembly outer box 30 through fixed seat 40, fixed seat 40 is arranged in the box bottom 31 of assembly outer box 30, PDU module 20 is fixed in the bottom of assembly outer box 30, and battery module 10 is adjacent with PDU module 20 Setting, the first end 11 of battery module 10 is connected with the first end 21 of PDU module 20, and the second end 12 of battery module 10 is connected with the second end 22 of PDU module 20, battery module 10 and fixed seat 40 are set up one by one, and the fixed seat 40 of two adjacent is abutted and sets up, and every fixed seat 40 is provided with first type " U " type notch 41 on the side surface close to PDU module 20.

[0028] As a preferred embodiment, the battery module 10 is adapted to the fixed seat 40; the first type "U" type notch 41 is adapted to the battery module 10. By setting the first type "U" type notch 41 and adapting it to the battery module 10, the installation and disassembly of the battery module 10 are facilitated, and the fixing and connection of the battery module 10 and the PDU module 20 are facilitated, which can effectively save space and facilitate the heat dissipation of the battery module, improve the energy density of the battery system, and effectively save costs.

[0029] As a preferred embodiment, the battery module 10 includes a plurality of module units 13, and adjacent module units 13 are connected in series by a wire harness 50; the module unit 13 is adapted to the fixed seat 40; the module unit 13 is adapted to the first type "U" type notch 41. In this way, the installation and disassembly of the module unit 13 are facilitated, which can effectively save space and facilitate the heat dissipation of the module unit 13, and improve the energy density of the battery system.

[0030] As a preferred embodiment, the module unit 13 is a standard module unit, and the voltage of each module unit 13 is 12.8V; each module unit 13 is provided with a BMS slave controller.

[0031] As a preferred embodiment, the capacity of the module unit 13 is one of 400Ah, 500Ah or 600Ah. For the same battery module 10, the module units 13 of the same capacity can be connected in series, or the module units 13 of different capacities can be connected in series, so that the battery system requirements of different parameters can be matched according to the actual use needs of the user. The module protection level after assembly can reach IP67, which can ensure its diversified use environment.

[0032] In a preferred embodiment, the PDU module 20 is connected to an external load (not shown in the figure). The PDU module 20 contains a BMS (not shown in the figure), a contactor (not shown in the figure), and a fuse (not shown in the figure). The BMS is connected to the BMS slave controller of each module unit 13, facilitating the control of the specific conditions of each module unit 13. Different models of BMS, contactors, and fuses can be matched according to different battery system parameters, thus allowing for the matching of battery system requirements with different parameters based on the user's actual needs, ensuring system versatility. The PDU module is the power distribution device of the industrial vehicle power battery system, used to receive electrical energy from the battery modules and distribute and transmit the received electrical energy to the external load for its use.

[0033] In a preferred embodiment, the first end 11 of the battery module 10 is connected to the first end 21 of the PDU module 20 via a first connecting line 60, and the second end 12 of the battery module 10 is connected to the second end 22 of the PDU module 20 via a second connecting line 70.

[0034] In a preferred embodiment, the first terminal 11 / 21 is the positive terminal and the second terminal 12 / 22 is the negative terminal; or, the first terminal 11 / 21 is the negative terminal and the second terminal 12 / 22 is the positive terminal. The first terminal 11 serves as the overall positive terminal or overall negative terminal of the battery module 10, and the second terminal 12 serves as the overall negative terminal or overall positive terminal of the battery module 10 to achieve output connection.

[0035] In a preferred embodiment, the battery module 10 is adapted to the assembly casing 30. In this embodiment, the adaptation of the battery module 10 to the assembly casing 30 means that the size of the battery module 10 and the arrangement of its module units 13 can be adapted to changes in the assembly casing 30. Figure 3 As shown, in this embodiment, when the length of the assembly outer box 30 is sufficient, the module units 13 of the battery module 10 can be arranged in a row according to the structure of the assembly outer box 30.

[0036] like Figure 4 As shown, in another embodiment, when the length of the assembly outer box 30 is insufficient, according to the structure of the assembly outer box 30, the module units 13 of the battery module 10 can be arranged in two columns, with the two columns of module units 13 corresponding one to one.

[0037] The same battery module 10 structure is arranged as follows Figure 3 The structure and arrangement shown are as follows Figure 4 The components and connecting wires used in the structure shown are all the same, so no additional replacements or changes are needed, making it convenient and quick.

[0038] That is, the same number and same parameters of standard modules can be arranged in different ways to form battery systems of different shapes, which can be arranged vertically in one or two rows or in other forms, as long as the fixing structure of the outer box is changed.

[0039] As a preferred embodiment, the assembly outer box 30 is provided with a second type of "U" shaped notch 31 near the side of the battery module 10, and the two second type of "U" shaped notches 31 are symmetrically arranged. By arranging two second type of "U" shaped notches 31 and symmetrically arranging them, the installation and fixation of the assembly outer box 30 body and cover are facilitated.

[0040] As a preferred embodiment, the bottom of the second type of "U" shaped notch 31 is provided with a rotating piece 311. The rotating piece 311 can be used to fix the end of the fixed cable inside the assembly outer box 30. With the recess of the second type of "U" shaped notch 31, the connection of the rotating piece and the end of the fixed cable will not affect the clamping of the body and cover of the assembly outer box.

[0041] When receiving a new demand for power battery from a customer, the battery system designer selects a 12.8V standard module unit with appropriate capacity according to the system demand parameters and determines the total number of series required (for example: system demand 51.2V, 500Ah, select a pre-designed 12.8V, 500Ah standard module unit, and series 4 same module units), and selects appropriate PDU module according to system parameters (mainly according to the voltage platform of the battery system). Then determine the arrangement scheme of the module unit according to the customer's requirement for installation space, and select the cable accessories with appropriate length. According to the above design, the installation structure of the battery assembly outer box is designed, so that a new power battery system product can be quickly designed with less manpower and shorter time, and the customer's demand can be maximized.

[0042] The present application standardizes and modularizes the battery module and the PDU module, so that when facing new demands for similar products, all components inside the battery system (including battery cells, BMS and electrical accessories, etc.) do not need to be disturbed and completely re-evaluated and designed, but only need to adjust the installation method of the 12.8V standard module unit and the PDU module, and change the fixing structure of the battery system outer box. When the battery cell has a problem, the battery pack does not need to be completely disassembled, but only the 12.8V standard module unit with abnormality needs to be replaced as a whole, which is simple and fast.

[0043] And, the user can match the battery system requirements of different parameters according to the actual use needs, and freely combine the industrial vehicle power battery systems of different sizes, different voltage platforms and different capacity sizes to adapt to the loading requirements of industrial vehicles of different brands and models; meanwhile, the universality of the assembly materials of each model of the battery system is enhanced, which is more conducive to the control of material cost, has higher practicability and economy, and can be produced and used as a general product.

[0044] In the description of the present specification, the description referring to the terms "an embodiment", "an example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.

[0045] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

[0046] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. An industrial vehicle motive battery system, characterized by, The battery module, the PDU module and the assembly outer box are included; the battery module is fixed in the assembly outer box through the fixing seat, the fixing seat is arranged in the bottom of the assembly outer box; the PDU module is fixed at the bottom of the assembly outer box, and the battery module and the PDU module are arranged adjacently; the first end of the battery module is connected with the first end of the PDU module, and the second end of the battery module is connected with the second end of the PDU module; the battery module and the fixing seat are arranged one by one; two adjacent fixing seats are abutted; each fixing seat is provided with a first "U" type notch on the side surface close to the PDU module.

2. The industrial vehicle motive battery system of claim 1, wherein, The battery module and the fixing seat are adaptively arranged; the first "U" type notch is adaptively arranged with the battery module.

3. The industrial vehicle motive battery system of claim 1, wherein, The battery module includes a plurality of module units, and adjacent module units are connected in series through a wire harness; the module unit and the fixing seat are adaptively arranged; the module unit and the first "U" type notch are adaptively arranged.

4. The industrial vehicle motive battery system of claim 3, wherein, The module unit is a standard module unit, the voltage of each module unit is 12.8V; a BMS slave controller is arranged in each module unit.

5. The industrial vehicle motive battery system of claim 3, wherein, The capacity of the module unit is one of 400Ah, 500Ah or 600Ah.

6. The industrial vehicle motive battery system of claim 1, wherein, The PDU module is connected with an external load; a BMS, a contactor and a fuse are arranged in the PDU module.

7. The industrial vehicle motive battery system of claim 1, wherein, The first end of the battery module is connected with the first end of the PDU module through a first connecting line, and the second end of the battery module is connected with the second end of the PDU module through a second connecting line.

8. The industrial vehicle motive battery system of claim 7, wherein, The first end is a positive electrode end, and the second end is a negative electrode end; or, the first end is a negative electrode end, and the second end is a positive electrode end.

9. The industrial vehicle motive battery system of claim 1, wherein, The battery module and the assembly outer box are adaptively arranged.

10. The industrial vehicle motive battery system of claim 1, wherein, Second "U" type notches are arranged on the side surface close to the battery module of the assembly outer box, and two second "U" type notches are symmetrically arranged; a rotating piece is arranged at the bottom of the second "U" type notch.

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