Mine car power battery frame

Abstract

The utility model discloses a mine car power battery frame which comprises an integrated battery frame which is divided into a power battery pack frame and a heat management unit frame. The power battery pack frame comprises a first box body and a second box body, and power batteries arranged on the first box body and the second box body are connected in series to form a branch; each branch is connected with a heat management unit on a heat management unit frame; the heat management unit adopts an air suction type fan, a heat management unit air outlet is formed in the end, close to the power battery frame, of the heat management unit frame, and air inlets are formed in the other three faces of the heat management unit frame. The utility model solves the problem that the existing battery frame lacks a battery heat management mounting structure space.

Description

Technical Field

[0001] The utility model belongs to the field of vehicle battery structures, and specifically relates to a mining vehicle power battery frame. Background Art

[0002] With the rapid development of new energy vehicles, whether pure electric or hybrid, power batteries are the primary source of power. To increase vehicle range and output power, the only way is to increase the number of power batteries. Mining trucks, in particular, require greater power output due to their heavy load capacity and a longer range due to their long operating times. Consequently, they require a larger number of power batteries. Furthermore, the larger the number of power batteries, the more thermal management units required.

[0003] A Chinese utility model patent application numbered CN202320971145.0 discloses a battery support structure comprising: a lower bracket comprising multiple L-shaped frames, each of which includes vertical connectors and cross supports perpendicular to each other, the vertical connectors being fixedly connected to the vehicle frame; a battery box assembly for accommodating batteries, which is simultaneously mounted on multiple cross supports; and an upper protective frame, one end of which is simultaneously fixedly connected to the multiple cross supports and the other end to the vehicle frame. This battery support structure effectively protects the batteries and improves the load-bearing capacity of the L-shaped frames.

[0004] The defect of the existing patent is that the above patent only provides protection for the installation of the battery bracket structure. Its structural dimensions are not suitable for the battery frame composed of multiple batteries in a mining car, and it does not take into account the installation structure space of the battery thermal management. Summary of the Invention

[0005] Aiming at the problem that the existing battery frame lacks structural space for battery thermal management installation, the utility model provides a mining car power battery frame.

[0006] In order to achieve the above technical objectives, the technical solutions adopted by this utility model are as follows:

[0007] A mining car power battery frame includes an integrated battery frame, which is divided into a power battery group frame and a thermal management unit frame;

[0008] The power battery pack frame includes a first box and a second box, and the power batteries arranged on the first box and the second box are connected in series to form a branch circuit;

[0009] Each branch is connected to a thermal management unit on the thermal management unit frame;

[0010] The thermal management unit adopts an air suction fan. The thermal management unit air outlet is set on the thermal management unit frame near the power battery frame end, and the air inlet is set on the other three sides of the thermal management unit frame.

[0011] Furthermore, the power battery pack frames are arranged in three rows and four columns.

[0012] Furthermore, each column of the power battery pack frame includes two first boxes and four second boxes.

[0013] Furthermore, the two first boxes on each column of the power battery pack frame are arranged diagonally, and four second boxes are arranged at other positions on each column; each column constitutes two branches, and four columns will constitute eight branches.

[0014] Furthermore, eight thermal management units are designed corresponding to the eight branches, and the thermal management unit frames are arranged in four rows and two columns.

[0015] Furthermore, the installation space size of the power battery pack frame is: 3020X2090X1090mm, and the installation space size of the thermal management unit frame is: 680X2090X1500mm.

[0016] Furthermore, the size of the first box is 1050X650X240mm, the size of the second box is 750X650X240mm, and the size of the thermal management machine installation box group is 850X575X290mm.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The power battery and thermal management unit share a common frame, which is not only convenient for installation but also saves space. More power batteries can be arranged in the existing space, and the space utilization rate reaches over 90%.

[0019] Each row of battery boxes forms two independent branches, and the layout is consistent, which facilitates the connection of wiring harnesses and pipes between battery boxes;

[0020] The air inlet of the thermal management machine is close to the power battery, while the air outlet of the fan is far away from the power battery, which is conducive to taking out the heat inside the power battery frame and improving the battery's heat dissipation capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a mining vehicle power battery frame in an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the thermal management unit framework structure in an embodiment of the present utility model.

[0023] Explanation of the marks in the figure: 1-power battery pack frame, 2-thermal management unit frame, 11-first box, 12-second box, 3-thermal management unit, 4-suction fan. DETAILED DESCRIPTION

[0024] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to embodiments and drawings. The contents mentioned in the embodiments are not intended to limit the present invention.

[0025] like Figure 1 and Figure 2 As shown, a mining vehicle power battery frame includes an integrated battery frame, which is divided into a power battery group frame 1 and a thermal management unit frame 2;

[0026] The power battery pack frame 1 includes a first box body 11 and a second box body 12. The power batteries arranged on the first box body 11 and the second box body 12 are connected in series to form a branch circuit.

[0027] Each branch is connected to a thermal management unit 3 on a thermal management unit frame 2;

[0028] The thermal management unit 3 uses a suction fan, and the thermal management unit frame 2 is provided with an air outlet for the thermal management unit 3 near the power battery frame end, while the thermal management unit frame 2 is provided with air inlets on the other three sides. The thermal management unit 3 uses a suction fan, and the air inlets are provided on the other three sides. This invention places the air inlet of the thermal management unit close to the power battery, while the fan outlet is located away from the power battery, which helps to remove heat from the power battery frame and improve the battery's heat dissipation capacity.

[0029] The power battery pack frames 1 are arranged in three rows and four columns.

[0030] Each column of the power battery pack frame 1 includes two first boxes 11 and four second boxes 12. In order to facilitate the wiring of each branch, the wiring method is unified and convenient.

[0031] The two first boxes 11 on each column of the power battery pack frame 1 are arranged diagonally, and four second boxes 12 are arranged at other positions on each column; each column constitutes two branches, and four columns will constitute eight branches.

[0032] Eight thermal management units 3 are designed for each of the eight branches, with the thermal management unit frames 2 arranged in four rows and two columns. Based on the matching of thermal management and power batteries, each branch requires a thermal management unit 3, for a total of eight thermal management units 3. Each thermal management unit 3 is equipped with two suction fans 4.

[0033] The installation space size of the power battery pack frame 1 is: 3020X2090X1090mm, and the installation space size of the thermal management unit 3 frame 2 is: 680X2090X1500mm.

[0034] The dimensions of the first box 11 are 1050X650X240mm, the dimensions of the second box 12 are 750X650X240mm, and the dimensions of the thermal management machine installation box group are 850X575X290mm.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] The power battery pack frame 1 and the thermal management unit frame 2 share a set of frames, which is not only convenient for installation but also saves space. More power batteries can be arranged in the existing space, and the space utilization rate reaches more than 90%;

[0037] Each row of battery boxes forms two independent branches, and the layout is consistent, which facilitates the connection of wiring harnesses and pipes between battery boxes;

[0038] The air inlet of the thermal management machine is close to the power battery, while the air outlet of the fan is far away from the power battery, which is conducive to taking out the heat inside the power battery frame and improving the battery's heat dissipation capacity.

[0039] The above is a detailed introduction to a mining car power battery frame provided by this application. The description of the specific embodiment is only used to help understand the structure and design scheme of this application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of this application, several improvements and modifications can be made to this application, and these improvements and modifications also fall within the scope of protection of the claims of this application.

Claims

1. A mining car power battery frame, including an integrated battery frame, characterized in that: The integrated battery frame is divided into a power battery pack frame (1) and a thermal management unit frame (2); The power battery pack frame (1) comprises a first box (11) and a second box (12), wherein the power batteries arranged on the first box (11) and the second box (12) are connected in series to form a branch circuit; Each branch is connected to a thermal management unit (3) on a thermal management unit frame (2); The thermal management unit (3) adopts an air suction fan, and an air outlet of the thermal management unit (3) is provided on the thermal management unit frame (2) near the power battery frame end, and air inlets are provided on the other three surfaces of the thermal management unit frame (2).

2. A mining vehicle power battery frame according to claim 1, characterized in that: The power battery pack frame (1) is arranged in three rows and four columns.

3. A mining vehicle power battery frame according to claim 2, characterized in that: Each row of the power battery pack frame (1) includes two first boxes (11) and four second boxes (12).

4. A mining vehicle power battery frame according to claim 3, characterized in that: The two first boxes (11) on each column of the power battery pack frame (1) are arranged diagonally, and four second boxes (12) are arranged at other positions on each column; each column forms two branches, and four columns will form eight branches.

5. A mining vehicle power battery frame according to claim 4, characterized in that: Eight thermal management units (3) are designed corresponding to the eight branches, and the thermal management unit frames (2) are arranged in four rows and two columns.

6. A mining vehicle power battery frame according to claim 5, characterized in that: The installation space size of the power battery pack frame (1) is: 3020X2090X1090mm, and the installation space size of the thermal management unit frame (2) is: 680X2090X1500mm.

7. A mining vehicle power battery frame according to claim 6, characterized in that: The size of the first box (11) is 1050X650X240mm, the size of the second box (12) is 750X650X240mm, and the size of the thermal management machine installation box group is 850X575X290mm.

Images