Lithium battery pack capable of being subjected to liquid cooling, air cooling and heating

Abstract

The utility model relates to a liquid-cooling, air-cooling and heating lithium battery pack. The lithium battery pack is characterized by comprising an outer box body, a longitudinal partition plate, a micro-channel plate and a heat exchange liquid cavity cover, transverse partition plates used for isolating lithium battery cells in an original outer box body are replaced by the micro-channel plates, and the micro-channel plates can be used as a heat exchange structure and can also be used as a supporting structure for isolating the lithium battery cells; meanwhile, the micro-channel plate can be in contact with each battery cell, so that the cooling and heating effects of the whole lithium battery pack are improved; the structure of an independently designed cooling system is reduced, the redundancy of the lithium battery pack is reduced, and the light weight of the lithium battery pack is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery package technical field especially relates to a liquid cooling, air cooling, heating's lithium battery package. BACKGROUND

[0002] Lithium battery has high energy density, long life, environmental protection and other advantages, is widely used in new energy automobile, energy storage and other fields. INVENTION CONTENTS

[0003] The utility model solves the technical problem to provide a liquid cooling, air cooling, heating's lithium battery package, can solve the problem that the traditional lithium battery package baffle structure and cooling heating system are independent structure and lead to the overall volume, quality is big, and cannot provide independent cooling to each electric core group.

[0004] In order to solve the above technical problem, the technical scheme of the utility model is as follows: a liquid cooling, air cooling, heating's lithium battery package, its innovation point lies in: including outer box, longitudinal baffle, microchannel board and heat exchange liquid cavity cover;

[0005] The outer box includes bottom plate, side plate and end plate, the side plate is vertically arranged on the both sides of the length direction of the bottom plate, the end plate is vertically arranged on the both ends of the width direction of the bottom plate, and a cuboid shell is surrounded by the cooperation of the side plate, the end plate and the bottom plate, the battery wiring port is set up on the end plate, and a plurality of microchannel board mounting notches are set up on the side plate along the extension direction;

[0006] The longitudinal baffle has a plurality of, and the longitudinal baffle is arranged in the outer box and is perpendicular to the side plate, the both ends of the longitudinal baffle are connected on the inner wall of the end plate of the outer box, and a plurality of clamping notches for accommodating the microchannel board are set up on the longitudinal baffle;

[0007] The microchannel board has a plurality of, and the microchannel board is arranged in the outer box and is parallel to each other, the microchannel board is perpendicular to the longitudinal baffle, the microchannel board passes through the clamping notch on the longitudinal baffle, and forms a grid structure with the longitudinal baffle, the both ends of the microchannel board are embedded in the microchannel board mounting notch on the side plate, and the outer side edge of the end of the microchannel board is welded and sealed with the microchannel board mounting notch, a plurality of channel units along the length direction of the microchannel board are set up on the microchannel board, and the channel unit is distributed in the height direction of the microchannel board, and the both ends of the channel unit are communicated with the outer side of the side plate.

[0008] Further, the heat exchange liquid cavity cover is sealingly connected to the outer contour of the side plate of the outer box body by bolts; the heat exchange liquid cavity cover and the outer wall of the side plate of the outer box body form a heat exchange liquid cavity; the heat exchange liquid circulation pipeline is arranged on the heat exchange liquid cavity cover; when the heat exchange liquid cavity cover is not installed, the lithium battery temperature environment in the outer box body is air-cooled by air passing through the channel unit; when the heat exchange liquid cavity cover is installed, the lithium battery temperature environment in the outer box body is liquid-cooled or heated by the heat exchange liquid passing through the channel unit.

[0009] Further, the micro-channel plate and the longitudinal partition plate form a grid structure, two lithium battery cells are arranged in each grid, and isolation foam is arranged between the two lithium battery cells to absorb the expansion force of the lithium battery cells and assist in fixing the lithium battery cells.

[0010] The utility model discloses the advantages are:

[0011] 1) in the utility model, the original horizontal partition plate for isolating lithium battery cells in the outer box body is replaced by a micro-channel plate, the micro-channel plate can be used as a heat exchange structure and a support structure for isolating lithium battery cells, and the micro-channel plate can contact each cell to improve the cooling and heating effect of the whole lithium battery pack, reduce the structure of the independently designed cooling system, reduce the redundancy of the lithium battery pack, and realize the lightweight of the lithium battery pack. BRIEF DESCRIPTION OF DRAWINGS

[0012] The utility model will be further described in detail in combination with the drawings and specific embodiments.

[0013] Figure 1 A lithium battery pack structure capable of liquid cooling, air cooling and heating. DETAILED DESCRIPTION

[0014] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0015] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0016] AsFigure 1 The application discloses a liquid-cooled, air-cooled and heated lithium battery pack.

[0017] The outer box body 1 comprises a bottom plate 11, side plates 12 and end plates 13; the side plates 12 are vertically arranged on both sides of the length direction of the bottom plate 11; the end plates 13 are vertically arranged on both ends of the width direction of the bottom plate 11, and a cuboid shell is formed by cooperation of the side plates 12, the end plates 13 and the bottom plate 11; a battery wiring port is formed in the end plate 13; and a plurality of micro-channel plate mounting slots are arranged on the side plates 12 along the extending direction.

[0018] The longitudinal partition plates 2 are arranged in the outer box body and are perpendicular to the side plates 12; the two ends of the longitudinal partition plates 2 are vertically connected to the inner walls of the end plates 13 of the outer box body 1; and a plurality of clamping slots for accommodating the micro-channel plates are formed in the longitudinal partition plates 2.

[0019] The micro-channel plates 3 are arranged in the outer box body and are parallel to each other; the micro-channel plates 3 are perpendicular to the longitudinal partition plates 2, pass through the clamping slots in the longitudinal partition plates and form a grid structure with the longitudinal partition plates 3; the two ends of the micro-channel plates 3 are embedded in the micro-channel plate mounting slots in the side plates, and the outer side edges of the end portions of the micro-channel plates 3 are welded and sealed with the micro-channel plate mounting slots; a plurality of channel units are arranged on the micro-channel plates 3 and are arranged in a lead-through manner along the length direction of the micro-channel plates 3, and the channel units are distributed in the height direction of the micro-channel plates; and the two ends of the channel units are in lead-through connection with the outer side surfaces of the side plates.

[0020] The heat exchange liquid cavity cover 4 is connected to the outer contour of the side plates of the outer box body in a bolt sealing manner; a heat exchange liquid cavity is formed between the heat exchange liquid cavity cover 4 and the outer wall of the side plates 12 of the outer box body 1; and a heat exchange liquid circulating pipeline is arranged on the heat exchange liquid cavity cover 4; in the state that the heat exchange liquid cavity cover 4 is not installed, the temperature environment of the lithium batteries in the outer box body 1 is air-cooled through air passing through the channel units; and in the state that the heat exchange liquid cavity cover 4 is installed, the temperature environment of the lithium batteries in the outer box body 1 is liquid-cooled or heated through heat exchange liquid passing through the channel units.

[0021] In the grid structure formed by the micro-channel plates 3 and the longitudinal partition plates 3, two lithium battery cells are arranged in each grid, and isolation foam is arranged between the two lithium battery cells, so as to absorb the expansion force of the lithium battery cells and assist in fixing the lithium battery cells.

[0022] The working principle of the utility model is: through the originally outer box body is used to isolate lithium battery core horizontal baffle to change into microchannel board, microchannel board can be used as heat exchange structure, also can be used as the support structure of lithium battery core isolation; Microchannel board can contact every core at the same time, improve the cooling and heating effect of whole lithium battery package; The structure of the independently designed cooling system is reduced, the redundancy of the lithium battery package is reduced, and the lightweight of the lithium battery package is realized.

[0023] The skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model.

Claims

1. A liquid-cooled, air-cooled, and heated lithium battery pack, characterized in that: The outer box body includes a bottom plate, side plates and end plates; the side plates are vertically arranged on both sides of the length direction of the bottom plate; the end plates are vertically arranged on both ends of the width direction of the bottom plate, and a cuboid shell is formed by the cooperation of the side plates, the end plates and the bottom plate; a battery wiring port is arranged on the end plate; a plurality of micro-channel plate mounting slots are arranged on the side plates along the extension direction; The longitudinal partition plates are arranged in the outer box body and are perpendicular to the side plates; the two ends of the longitudinal partition plates are connected to the inner walls of the end plates of the outer box body; a plurality of clamping slots for accommodating the micro-channel plates are arranged on the longitudinal partition plates; The micro-channel plates are arranged in the outer box body and are parallel to each other; the micro-channel plates are perpendicular to the longitudinal partition plates and pass through the clamping slots on the longitudinal partition plates to form a grid structure; the two ends of the micro-channel plates are embedded in the micro-channel plate mounting slots on the side plates, and the outer side edges of the end portions of the micro-channel plates are welded and sealed with the micro-channel plate mounting slots; a plurality of channel units are arranged on the micro-channel plates and are arranged in the length direction of the micro-channel plates and are distributed in the height direction of the micro-channel plates; the two ends of the channel units are in communication with the outer side surfaces of the side plates. The heat exchange liquid cavity cover is connected to the outer contour of the side plate of the outer box body by bolts; a heat exchange liquid cavity is formed between the heat exchange liquid cavity cover and the outer wall of the side plate of the outer box body; a heat exchange liquid circulation pipeline is arranged on the heat exchange liquid cavity cover; when the heat exchange liquid cavity cover is not installed, the temperature environment of the lithium battery in the outer box body is air-cooled through the channel units; when the heat exchange liquid cavity cover is installed, the temperature environment of the lithium battery in the outer box body is liquid-cooled or heated through the heat exchange liquid. 2.The liquid-cooled, air-cooled and heated lithium battery pack of claim 1, wherein: In the grid structure formed by the micro-channel plates and the longitudinal partition plates, two lithium battery cells are arranged in each grid, and isolation foam is arranged between the two lithium battery cells to absorb the swelling force of the lithium battery cells and assist in fixing the lithium battery cells. 3.The liquid-cooled, air-cooled and heated lithium battery pack of claim 1, wherein: ​

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