Commercial vehicle power battery system

Abstract

The utility model discloses a commercial vehicle power battery system which comprises a lower layer shell, multiple layers of upper layer shells are installed on one side of the upper portion of the lower layer shell in a stacked mode, and the lower layer shell is matched with the upper layer shells to form an L-shaped structure. A plurality of blade battery cells are arranged in the lower-layer shell and the upper-layer shell; an upper-layer box cover is mounted on the upper surface of the uppermost upper-layer shell, and a lower-layer box cover is mounted in the area, protruding out of the upper-layer shell, of the upper surface of the lower-layer shell; and a high-voltage plug-in is mounted on the lower-layer box cover. According to the utility model, more battery monomers can be arranged in an effective battery system volume, so that the capacity and the voltage of the battery system are effectively improved, and the overall endurance mileage is increased.

Description

TECHNICAL FIELD

[0001] The utility model belongs to power battery technical field, concretely relates to commercial vehicle power battery system. BACKGROUND

[0002] At present, new energy commercial vehicle is widely applied, and is mostly applied in freight market. The power battery system is the core power mechanism of new energy commercial vehicle, and the existing power battery system of new energy commercial vehicle is usually single cuboid structure, which is single in structure, low in total electric quantity, and slow in charging, thereby leading to short vehicle cruising range and affecting freight efficiency. UTILITARY MODEL CONTENTS

[0003] The utility model discloses a commercial vehicle power battery system, which can arrange more battery monomers in the effective battery system volume, effectively improve the capacity and voltage of the battery system, and increase the overall cruising range.

[0004] To achieve the above object, the utility model discloses a commercial vehicle power battery system, which comprises a lower shell, a plurality of upper layer shells are stacked and installed on one side above the lower shell, and the lower shell cooperates with the upper layer shells to form an L-shaped structure.

[0005] A plurality of blade battery cells are arranged in the lower shell and the upper layer shells.

[0006] An upper layer box cover is installed on the upper surface of the uppermost upper layer shell, and a lower layer box cover is installed on the region of the upper surface of the lower shell that protrudes the upper layer shell.

[0007] A high-voltage plug-in component is installed on the lower layer box cover.

[0008] As a further scheme of the utility model, the length direction of the blade battery cell in the upper layer shell is perpendicular to the length direction of the upper layer shell.

[0009] As a further scheme of the utility model, the length direction of the blade battery cell in the region of the upper layer shell in the lower shell is perpendicular to the length direction of the lower shell, and the length direction of the blade battery cell in the region of the upper layer shell that protrudes the lower shell in the lower shell is parallel to the length direction of the lower shell.

[0010] As a further scheme of the utility model, the total height of the power battery system is H, the total number of layers of the lower shell and the upper layer shell is n, and the height of the single blade battery cell is h, which need to satisfy the following conditions:

[0011]

[0012] Compared with the prior art, the utility model has the beneficial effects as follows:

[0013] According to the height of the single blade battery cell, more blade battery cells can be arranged in the effective volume.

[0014] The electric core is arranged by the protruding area of the lower shell, an external plug-in area is reserved, a high-voltage plug-in of the whole vehicle is installed, more blade electric cores can be arranged in the power battery system, the electric quantity and voltage of the power battery system are effectively improved, and the cruising range of the whole vehicle is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the power battery system of the commercial vehicle.

[0016] Figure 2 It is a structural schematic diagram of the power battery system of the commercial vehicle in an exploded state.

[0017] Figure 3 It is a top view (remove the upper box cover and the lower box cover) of the power battery system of the commercial vehicle.

[0018] Figure 4 It is a size marking schematic diagram of the power battery system of the commercial vehicle.

[0019] In the figure: 1, the upper shell, 2, the lower shell, 3, the upper box cover, 4, the blade electric core, 5, the high-voltage plug-in, 6, the lower box cover. DETAILED DESCRIPTION

[0020] The utility model will be further described below in combination with the drawings.

[0021] As shown in Figure 1 and Figure 2 , the power battery system of the commercial vehicle comprises a lower shell 2, a plurality of upper shells 1 are stacked and installed on one side above the lower shell 2, and the lower shell 2 cooperates with the upper shell 1 to form an L-shaped structure.

[0022] A plurality of blade electric cores 4 are arranged in the lower shell 2 and the upper shell 1.

[0023] The upper surface of the uppermost upper shell 1 is provided with an upper box cover 3, and the area of the upper surface of the lower shell 2 protruding the upper shell 1 is provided with a lower box cover 6.

[0024] The high-voltage plug-in 5 is arranged on the protruding area of the lower shell 2, and the power battery system is installed in the Z direction of the whole vehicle.

[0025] In order to improve the overall electric quantity of the power battery system, further, as shown in Figure 2 and Figure 3 , the length direction of the blade electric core 4 in the upper shell 1 is perpendicular to the length direction of the upper shell 1.

[0026] Further, the length direction of the blade battery cell 4 in the area corresponding to the upper shell 1 in the lower shell 2 is perpendicular to the length direction of the lower shell 2, and the length direction of the blade battery cell 4 protruding from the area of the upper shell 1 in the lower shell 2 is parallel to the length direction of the lower shell 2. The internal space of the power battery system is fully utilized, and more blade battery cells 4 are arranged in the effective volume.

[0027] Further, as shown in Figure 4 the total height of the power battery system is H, the total number of layers of the lower shell 2 and the upper shell 1 is n, and the height of the single blade battery cell 4 is h, which needs to satisfy:

[0028]

[0029] The number of layers of the upper shell 1 is not less than two, which forms an L-shaped structure with the lower shell 2. According to the total height of the power battery system and the total number of layers of the lower shell 2 and the upper shell 1, the height of the single blade battery cell 4 is defined. The blade battery cell 4 is fixed and sealed by the connection of the upper shell 1 and the lower shell 2. The internal space of the power battery system is fully utilized, and more blade battery cells 4 are arranged in the effective volume, thereby effectively improving the power and voltage of the power battery system, and further improving the cruising range of the whole vehicle.

Claims

1. A commercial vehicle traction battery system comprising a lower housing (2), characterized in that The lower shell (2) is stacked with multiple upper shells (1) on one side above the lower shell (2), and the lower shell (2) cooperates with the upper shell (1) to form an L-shaped structure; Multiple blade battery cells (4) are arranged in the lower shell (2) and the upper shell (1); An upper shell cover (3) is mounted on the upper surface of the uppermost upper shell (1), and a lower shell cover (6) is mounted on the area of the lower shell (2) protruding the upper shell (1); A high-voltage plug-in (5) is mounted on the lower shell cover (6).

2. The commercial vehicle traction battery system of Claim 1, wherein, The length direction of the blade battery cell (4) in the upper shell (1) is perpendicular to the length direction of the upper shell (1).

3. The commercial vehicle traction battery system according to claim 1 or 2, characterized in that The length direction of the blade battery cell (4) in the lower shell (2) corresponding to the area of the upper shell (1) is perpendicular to the length direction of the lower shell (2), and the length direction of the blade battery cell (4) in the lower shell (2) protruding the area of the upper shell (1) is parallel to the length direction of the lower shell (2).

4. The commercial vehicle traction battery system of claim 3, wherein, The total height of the power battery system is H, the total number of the lower shell (2) and the upper shell (1) is n, and the height of the single blade battery cell (4) is h, which need to meet:

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