Lithium battery pack for high-speed logistics vehicle

Abstract

The utility model discloses a lithium battery pack for a high-speed logistics vehicle, which relates to the technical field of lithium batteries and comprises a shell, first protective strips are connected to two sides of the bottom of the shell, second protective strips are connected to side surfaces of the first protective strips, and third protective strips are connected to the bottom of the shell. The first protective strips and the second protective strips are arranged, the first protective strips and the second protective strips are vertically distributed to form a grid shape, so that the collision of some foreign matters with larger volumes can be conveniently protected, and the first protective strips and the second protective strips are made of 6082 aluminum alloy, have excellent material strength and are corrosion-resistant; the battery is impact-resistant and long in service life, so that the phenomenon that the battery core is knocked by foreign matters is effectively reduced; and the protection strength is high, and the phenomenon that the cell is knocked by foreign matters is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery technical field, concretely is a kind of lithium battery pack for high-speed logistics vehicle. BACKGROUND

[0002] With the development of new energy automobile technology, the fuel high-speed logistics vehicle of present is gradually replaced by electric drive high-speed logistics vehicle, and the electric drive high-speed logistics vehicle mainly uses 24160 type lithium battery pack as part of the lithium battery system of high-speed logistics vehicle, has higher energy density, thereby reducing the operation cost of high-speed logistics vehicle.

[0003] The lithium battery pack and electric vehicle with application No. 201721609678.5 include a shell, an inner shell and a plurality of supporting pieces. The shell is located outside the inner shell and has a ventilation channel between the shell and the inner shell. The lithium battery body is located in the accommodating cavity and connected with the inner shell. The first air supply piece is connected with the inner shell and corresponds to the first notch. The first air supply piece allows the air in the ventilation channel to flow to the accommodating cavity. The lithium battery pack can assist air flow and remove heat through the ventilation channel between the shell and the inner shell, and has better overall heat dissipation effect and use effect. After external impact, the shell is damaged first, and the inner shell is not damaged in general cases, which can provide better protection for the lithium battery body. The structure design is reasonable, and has great market application potential. The electric vehicle includes the lithium battery pack, which has all the functions of the lithium battery pack.

[0004] The technical solution protects the lithium battery pack by means of inner and outer shells, but the setting of the inner and outer shells reduces the heat dissipation efficiency, and the lithium battery pack is difficult to dissipate heat by means of wind impact during driving, which reduces the power consumption required for lithium battery pack heat dissipation. On the contrary, the fan replaces the wind impact to further improve the power consumption required for lithium battery pack heat dissipation during discharge, and the increase of the air inlet and outlet caused by damage to the shell after impact will cause air turbulence and reduce the heat dissipation efficiency in some areas. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims to provide a lithium battery pack for high-speed logistics vehicle to solve the technical problems mentioned in the background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a lithium battery pack for high-speed logistics vehicle, including shell, the both sides of shell bottom are connected with first protective strip, and the side surface of first protective strip is connected with second protective strip, the shell bottom is connected with third protective strip.

[0007] By adopting the above technical scheme, in the process of driving the high-speed logistics vehicle, the first protection strips and the second protection strips are vertically distributed to form a grid shape, thereby facilitating protection against impact of some large-volume foreign matters; the height of the third protection strip is less than that of the first protection strip and is located above the second protection strip, so that large-volume foreign matters are difficult to directly impact the third protection strip at the first impact, the third protection strip has a high distribution density and can block the foreign matters that continue to intrude to achieve a secondary protection effect, and can protect against impact of small-volume foreign matters; the first protection strip, the second protection strip and the third protection strip are all made of 6082 aluminum alloy, have excellent material strength, are corrosion-resistant, impact-resistant and have a long service life, thereby effectively reducing the phenomenon of the electric core being broken by foreign matters.

[0008] Further, the first protection strip, the second protection strip and the third protection strip are all made of 6082 aluminum alloy.

[0009] By adopting the above technical scheme, the first protection strip, the second protection strip and the third protection strip are all made of 6082 aluminum alloy, have excellent material strength, are corrosion-resistant, impact-resistant and have a long service life, thereby effectively reducing the phenomenon of the electric core being broken by foreign matters.

[0010] Further, the width of the third protection strip is less than that of the first protection strip, the height of the second protection strip and the third protection strip is half of that of the first protection strip, and the second protection strip is located below the third protection strip.

[0011] By adopting the above technical scheme, the height of the third protection strip is less than that of the first protection strip and is located above the second protection strip, so that large-volume foreign matters are difficult to directly impact the third protection strip at the first impact, and the third protection strip has a high distribution density and can block the foreign matters that continue to intrude to achieve a secondary protection effect.

[0012] Further, the first protection strip and the second protection strip are both provided with a plurality of first protection strips and second protection strips, and the plurality of first protection strips and second protection strips are vertically distributed.

[0013] By adopting the above technical scheme, the first protection strips and the second protection strips are vertically distributed to form a grid shape, thereby facilitating protection against impact of some large-volume foreign matters.

[0014] Further, the third protective strips are arranged in plurality and are arranged in parallel.

[0015] By using the above technical scheme, the third protective strips are arranged in high density, can block the further invading foreign matters and play a secondary protection effect, and can play a protection effect on the impact of small volume foreign matters.

[0016] Further, the third protective strips are arranged in plurality and are arranged in parallel.

[0017] By using the above technical scheme, the third protective strips are arranged in high density, can block the further invading foreign matters and play a secondary protection effect, and can play a protection effect on the impact of small volume foreign matters.

[0018] Further, the third protective strips are arranged in plurality and are arranged in parallel.

[0019] By using the above technical scheme, the third protective strips are arranged in high density, can block the further invading foreign matters and play a secondary protection effect, and can play a protection effect on the impact of small volume foreign matters.

[0020] Further, the third protective strips are arranged in plurality and are arranged in parallel.

[0021] By using the above technical scheme, the third protective strips are arranged in high density, can block the further invading foreign matters and play a secondary protection effect, and can play a protection effect on the impact of small volume foreign matters.

[0022] Further, the third protective strips are arranged in plurality and are arranged in parallel.

[0023] By using the above technical scheme, the third protective strips are arranged in high density, can block the further invading foreign matters and play a secondary protection effect, and can play a protection effect on the impact of small volume foreign matters.

[0024] Further, the third protective strips are arranged in plurality and are arranged in parallel.

[0025] By using the above technical scheme, the third protective strips are arranged in high density, can block the further invading foreign matters and play a secondary protection effect, and can play a protection effect on the impact of small volume foreign matters.

[0026] In summary, the utility model mainly has the following beneficial effects:

[0027] 1. The utility model discloses a first protective strip and second protective strip are set up, and a plurality of first protective strips and second protective strips are vertically distributed to form a grid, thereby facilitating the protection of some bulky foreign matter impact, and the first protective strip and second protective strip are made of 6082 aluminum alloy, which has excellent material strength, is corrosion-resistant, impact-resistant and has a long service life, thereby effectively reducing the phenomenon of the electric core being broken by foreign matter.

[0028] 2. The utility model discloses a third protective strip is set up, and the height of the third protective strip is less than the height of the first protective strip and is located above the second protective strip, so that bulky foreign matter is difficult to directly impact the third protective strip when initially impacting, the third protective strip has a high distribution density, can block the foreign matter that continues to intrude, has a secondary protection effect, and can protect the impact of small-volume foreign matter; further improve the protection effect to effectively reduce the phenomenon of the electric core being broken by foreign matter.

[0029] 3. The utility model discloses a first protective strip, a second protective strip and a third protective strip are set up, and the first protective strip, the second protective strip and the third protective strip protect the impact of foreign matter without forming a closed space, so that air can circulate normally, the high-speed logistics vehicle can assist in heat dissipation of the lithium battery pack by wind impact during driving, and the first protective strip, the second protective strip and the third protective strip are all made of 6082 aluminum alloy, which has good thermal conductivity, thereby increasing the heat dissipation area to improve the efficiency of auxiliary heat dissipation of the lithium battery pack during wind impact; while protecting, the high-efficiency wind impact auxiliary heat dissipation can reduce the power consumption of the heat dissipation system during discharge of the lithium battery pack, improve the energy utilization rate and increase the distance of the high-speed logistics vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is the bottom structure schematic view of the utility model;

[0031] Figure 2 It is the structure schematic view of the utility model; Figure 1

[0032] Figure 3 It is the structure schematic view of the utility model;

[0033] Figure 4 It is the explosion structure schematic view of the utility model.

[0034] In the drawing: 1, shell; 2, cover plate; 3, bolt; 4, electric core; 5, containing groove; 6, first protective strip; 7, second protective strip; 8, third protective strip. DETAILED DESCRIPTION

[0035] ​The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] The embodiments of this utility model will be described below based on its overall structure.

[0037] Example 1:

[0038] A lithium battery pack for high-speed logistics vehicles, such as Figures 1-4 As shown, the device includes an outer shell 1. First protective strips 6 are connected to both sides of the bottom of the outer shell 1. Second protective strips 7 are connected to the sides of the first protective strips 6. Multiple first and second protective strips 6 and 7 are provided, and these multiple strips are vertically distributed. A third protective strip 8 is connected to the bottom of the outer shell 1. Multiple third protective strips 8 are provided, and these strips are parallel to each other. The width of the third protective strip 8 is less than the width of the first protective strip 6. The height of both the second and third protective strips 7 and 8 is half the height of the first protective strip 6. The second protective strip 7 is located below the third protective strip 8. All three protective strips (6, 7, and 8) are made of 6082 aluminum alloy. During high-speed logistics vehicle operation, the vertically distributed first and second protective strips 6 and 7 form a grid-like structure, facilitating protection against impacts from larger foreign objects. The height of the third protective strip 8 is less than the height of the first protective strip 6 and is located below the second protective strip 7. The first protective strip 6, the second protective strip 7, and the third protective strip 8 are positioned above the first protective strip 7, making it difficult for large foreign objects to directly impact the third protective strip 8 during the initial collision. The third protective strip 8 has a high density, which can block further intruding foreign objects and provide secondary protection. It can also protect against impacts from small foreign objects. The first protective strip 6, the second protective strip 7, and the third protective strip 8 are all made of 6082 aluminum alloy, which has excellent material strength, corrosion resistance, impact resistance, and long service life, thus effectively reducing the occurrence of the battery cell 4 being damaged by foreign objects. While protecting against foreign object impacts, the first protective strip 6, the second protective strip 7, and the third protective strip 8 do not completely seal off the space, so air can circulate normally. This allows the high-speed logistics vehicle to use the impact wind to assist in the cooling of the lithium battery pack during operation. Furthermore, the first protective strip 6, the second protective strip 7, and the third protective strip 8 are all made of 6082 aluminum alloy, which has good thermal conductivity, thereby increasing the heat dissipation area and improving the efficiency of auxiliary cooling of the lithium battery pack during impact wind.

[0039] See Figure 1 , Figure 3 and Figure 4In the above embodiment, the top of the shell 1 is connected with the cover plate 2, the top of the cover plate 2 penetrates the bolt 3, the cover plate 2 is detachably connected with the shell 1 through the bolt 3, the shell 1 is internally provided with the accommodating groove 5, the accommodating groove 5 is internally provided with the plurality of electric cores 4, the plurality of electric cores 4 are arranged in a rectangular array, the lithium battery pack is installed at the chassis position of the high-speed logistics vehicle, the 24160 type electric core 4 is used as the energy storage structure of the lithium battery system of the logistics vehicle, thereby supplying energy for the power system and other systems of the high-speed logistics vehicle, when the electric core 4 is damaged subsequently, the staff only needs to take down the bolt 3 and then take down the cover plate 2 to leak out the electric core 4, at this time, the electric core 4 in the accommodating groove 5 can be replaced, and after the electric core 4 is replaced, the cover plate 2 and the bolt 3 are sequentially installed back.

[0040] Embodiment two:

[0041] On the basis of the above embodiment one, in order to further improve the protection effect and the heat dissipation efficiency, the following setting is made.

[0042] Referring to Figure 1 and Figure 2 In the above embodiment, the third protection strip 8 is in a wave shape in section, which can reduce the phenomenon that small-size foreign matters directly impact the shell 1, and further improve the heat dissipation area to improve the heat dissipation efficiency.

[0043] Embodiment three:

[0044] On the basis of the above embodiment one, in order to make the top of the cover plate 2 more flat, the following setting is made.

[0045] Referring to Figure 2 and Figure 3 In the above embodiment, the bolt 3 is in an internal hexagonal cylindrical head style, which is convenient to bury in the interior of the cover plate 2 and is convenient to operate through an internal hexagonal wrench, so that the surface of the cover plate 2 is relatively flat.

[0046] The implementation principle of the utility model is as follows: firstly, the lithium battery pack is installed at the chassis position of the high-speed logistics vehicle, the 24160 type electric core 4 is used as the energy storage structure of the lithium battery system of the logistics vehicle, thereby supplying energy for the power system and other systems of the high-speed logistics vehicle, when the electric core 4 is damaged subsequently, the staff only needs to take down the bolt 3 and then take down the cover plate 2 to leak out the electric core 4, at this time, the electric core 4 in the accommodating groove 5 can be replaced, and after the electric core 4 is replaced, the cover plate 2 and the bolt 3 are sequentially installed back, the bolt 3 is in an internal hexagonal cylindrical head style, which is convenient to bury in the interior of the cover plate 2 and is convenient to operate through an internal hexagonal wrench, so that the surface of the cover plate 2 is relatively flat;

[0047] In the process of driving the high-speed logistics vehicle, the first protection strips 6 and the second protection strips 7 are vertically distributed to form a grid shape, so as to facilitate the protection of the impact of some bulky foreign matters; the height of the third protection strip 8 is less than the height of the first protection strip 6 and is located at the upper position of the second protection strip 7, so that the bulky foreign matters are difficult to directly impact the third protection strip 8 in the first impact; the third protection strip 8 has a high distribution density, can block the foreign matters that continue to intrude and has a secondary protection effect, and can have a protection effect on the impact of small-volume foreign matters; the third protection strip 8 is in a wave shape, can reduce the phenomenon of direct impact of small-volume foreign matters on the shell 1, and the first protection strip 6, the second protection strip 7 and the third protection strip 8 are all made of 6082 aluminum alloy, have excellent material strength, are corrosion-resistant, impact-resistant and have a long service life, so as to effectively reduce the phenomenon of the electric core 4 being broken by foreign matters.

[0048] The first protection strip 6, the second protection strip 7 and the third protection strip 8 do not form a closed space while protecting the impact of foreign matters, so that air can circulate normally, the high-speed logistics vehicle can be assisted in heat dissipation by wind impact in the driving process, and the first protection strip 6, the second protection strip 7 and the third protection strip 8 are all made of 6082 aluminum alloy, have good thermal conductivity, so as to increase the heat dissipation area and improve the efficiency of the auxiliary heat dissipation of the lithium battery pack by wind impact, and the third protection strip 8 is in a wave shape, further improves the heat dissipation area and improves the heat dissipation efficiency.

[0049] Although the embodiments of the utility model have been shown and described, the specific embodiments are only an explanation of the utility model, and are not a limitation of the utility model, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and the person skilled in the art can make modifications, replacements and variations of the embodiments without creative contribution after reading the specification without departing from the principles and purposes of the utility model, but as long as in the claim range of the utility model, it is protected by the patent law.

Claims

1. A lithium battery pack for high speed logistic vehicles comprising a housing (1), characterized in that: The bottom of the shell (1) is connected with first protective strips (6), and the side of the first protective strips (6) is connected with second protective strips (7), and the bottom of the shell (1) is connected with third protective strips (8).

2. The high speed cart lithium battery pack of claim 1, wherein: The first protective strips (6), the second protective strips (7) and the third protective strips (8) are made of 6082 aluminum alloy.

3. The high speed cart lithium battery pack of claim 2, wherein: The width of the third protective strips (8) is smaller than that of the first protective strips (6), the height of the second protective strips (7) and the third protective strips (8) is half of that of the first protective strips (6), and the second protective strips (7) are below the third protective strips (8).

4. The high speed cart lithium battery pack of claim 3, wherein: The first protective strips (6) and the second protective strips (7) are provided in plurality, and the plurality of first protective strips (6) and the second protective strips (7) are vertically distributed.

5. The high speed cart lithium battery pack of claim 3, wherein: The third protective strips (8) are provided in plurality, and the plurality of third protective strips (8) are parallelly distributed.

6. The high speed cart lithium battery pack of claim 5, wherein: The cross section of the third protective strips (8) is wavy.

7. The high speed cart lithium battery pack of claim 1, wherein: The top of the shell (1) is connected with a cover plate (2), the top of the cover plate (2) penetrates a bolt (3), the inside of the shell (1) is provided with a containing groove (5), and the inside of the containing groove (5) is provided with an electric core (4).

8. The high speed cart lithium battery pack of claim 7, wherein: The electric core (4) is provided in plurality, and the plurality of electric cores (4) are distributed in a rectangular array.

9. The high speed cart lithium battery pack of claim 7, wherein: The cover plate (2) is detachably connected with the shell (1) through the bolt (3).

10. The high speed cart lithium battery pack of claim 7, wherein: The bolt (3) is in the style of an internal hexagonal cylindrical head.

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