Battery pack structure

Abstract

The utility model belongs to the technical field of batteries, and provides a battery pack structure which comprises a box body, a box cover, a plurality of battery modules, a fan and an air outlet pipe, and a plurality of air inlets are formed in the two side walls of the box body; the box cover covers the box body, and an air outlet is formed in the box cover; the battery modules are installed in the box body, ventilation air ducts are arranged between the adjacent battery modules, the battery modules are provided with heat dissipation air ducts, one ends of the heat dissipation air ducts are communicated with the ventilation air ducts, and the other ends of the heat dissipation air ducts are arranged corresponding to the air inlets; the fan is mounted on the box cover, and the fan and the air outlet are correspondingly arranged; one end of the air outlet pipe is communicated with the ventilation air duct, and the other end of the air outlet pipe is connected with the fan. The battery module is simple and compact in structure, heat dissipation can be carried out on the interior of the battery module, ventilation air channels are arranged between the battery modules, the heat dissipation effect is good, and heat dissipation is uniform.

Description

Technical Field

[0001] The present application belongs to the field of battery technology, and specifically, relates to a battery pack structure. Background Art

[0002] The battery pack is composed of multiple single cells or supercapacitors connected in series and parallel to form a module according to the load requirements, and then multiple modules are connected in series and parallel to form a battery module with a certain voltage and capacity, which is placed inside a sealed box to form a battery pack. The battery modules in the battery pack will generate heat during the charging and discharging process. If this heat cannot be dissipated in time, it will affect the use of the battery module and shorten the life of the battery module. In severe cases, it may even cause safety accidents.

[0003] Some existing battery packs use fans for heat dissipation, but their structures are complex and most of them only dissipate heat on the surface of the battery module but not inside the battery module, resulting in poor heat dissipation effect. At the same time, the battery modules in some battery packs are tightly fitted, further resulting in poor heat dissipation effect and uneven heat dissipation. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings in the prior art, the purpose of the present application is to provide a battery pack structure which is simple and compact, can dissipate heat inside the battery module, and has ventilation ducts between the battery modules, so as to achieve good heat dissipation effect and uniform heat dissipation.

[0005] The technical means adopted by this application to solve the above technical problems are:

[0006] The present application provides a battery pack structure, comprising:

[0007] A box body, wherein two side walls of the box body are provided with a plurality of air inlets;

[0008] A box cover, the box cover is arranged on the box body, and the box cover is provided with an air outlet;

[0009] A plurality of battery modules, wherein the battery modules are mounted on the box body, a ventilation duct is arranged between adjacent battery modules, and the battery modules are provided with a heat dissipation duct, one end of the heat dissipation duct is connected to the ventilation duct, and the other end of the heat dissipation duct is arranged corresponding to the air inlet;

[0010] A fan, the fan is installed on the box cover, and the fan is arranged corresponding to the air outlet;

[0011] An air outlet pipe, one end of which is communicated with the ventilation duct, and the other end of which is connected to the fan.

[0012] Preferably, the box cover comprises a front baffle and a panel, slots are provided on both sides of the panel, and the front baffle is inserted into the slots.

[0013] Preferably, the air inlets are in a mesh structure, and the air inlets on the same side are evenly spaced.

[0014] Preferably, the heat dissipation duct is arranged along the short axis direction of the battery module, and the ventilation duct is arranged along the long axis direction of the battery module.

[0015] Preferably, the ventilation duct includes a top plate and a wind shield, a channel is provided between adjacent battery modules, the top plate covers the channel, one end of the channel is connected to the air outlet pipe, and the wind shield is installed at the other end of the channel.

[0016] Preferably, the box body comprises a top cover and a bottom plate, and the top cover is mounted on the bottom plate.

[0017] Compared with the prior art, the battery pack structure of the present application has an air inlet on the box body, and a heat dissipation duct corresponding to the air inlet inside the battery module, so that external air can enter the heat dissipation duct through the air inlet to dissipate the heat inside the battery module, thereby improving the heat dissipation efficiency and making the heat dissipation more uniform; at the same time, ventilation ducts are provided between the battery modules, and the ventilation ducts are connected with the heat dissipation ducts, so that the air passing through the heat dissipation ducts enters the ventilation ducts to dissipate the heat between the battery modules, and finally driven by the fan to discharge the hot air from the air outlet; the overall heat dissipation efficiency is high, the effect is good, and the heat dissipation is uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the structure of the battery pack of the present application.

[0020] Figure 2 This is a schematic diagram of the internal structure of the battery pack structure of this application.

[0021] Figure 3 An exploded diagram of the battery pack structure of this application.

[0022] Marking Description:

[0023] 1. Box body; 1a. Air inlet; 1b. Top cover; 1c. Bottom plate; 2. Box cover; 2a. Air outlet; 2b. Front baffle; 2c. Panel; 3. Battery module; 4. Cooling duct; 5. Ventilation duct; 5a. Top plate; 5b. Wind shield; 6. Fan; 7. Air outlet duct. DETAILED DESCRIPTION

[0024] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the utility model, and the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] It should be noted that: unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. At the same time, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0026] like Figure 1-3 As shown, a battery pack structure is provided in this embodiment, including a box body 1, a box cover 2, multiple battery modules 3, a fan 6 and an air outlet duct 7, the two side walls of the box body 1 are provided with multiple air inlets 1a; the box cover 2 is covered on the box body 1, and the box cover 2 is provided with air outlets 2a; the battery modules 3 are installed on the box body 1, and ventilation ducts 5 are arranged between adjacent battery modules 3, and the battery modules 3 are provided with heat dissipation ducts 4, one end of the heat dissipation duct 4 is connected to the ventilation duct 5, and the other end of the heat dissipation duct 4 is arranged corresponding to the air inlet 1a; the fan 6 is installed on the box cover 2, and the fan 6 is arranged corresponding to the air outlet 2a; one end of the air outlet duct 7 is connected to the ventilation duct 5, and the other end of the air outlet duct 7 is connected to the fan 6.

[0027] In some preferred embodiments of the utility model, the box cover 2 includes a front baffle 2b and a panel 2c, and slots are provided on both sides of the panel 2c, and the front baffle 2b is inserted into the slots. In this way, the front baffle 2b and the panel 2c are combined to facilitate the installation of the circuit board on the panel 2c, and the circuit board is protected by the front baffle 2b; the slots can facilitate the combination of the front baffle 2b and the panel 2c, and facilitate disassembly and assembly.

[0028] In some preferred embodiments of the utility model, the air inlet 1a is a mesh structure, and the air inlets 1a on the same side are evenly spaced. In this way, the air inlet 1a is a mesh structure, which can filter some debris and prevent large debris from entering the box body 1.

[0029] In some preferred embodiments of the utility model, the heat dissipation duct 4 is arranged along the short axis direction of the battery module 3, and the ventilation duct 5 is arranged along the long axis direction of the battery module 3. In this way, the heat dissipation duct 4 is arranged along the short axis direction of the battery module 3, which can facilitate the opening of the heat dissipation duct 4 with the battery cell and facilitate the setting of the overall structure. The ventilation duct 5 is arranged along the long axis direction of the battery module 3, which can facilitate the heat dissipation of the surface of the battery module 3, save the overall space, and reduce the volume of the battery pack.

[0030] In some preferred embodiments of the utility model, the ventilation duct 5 includes a top plate 5a and a windshield 5b, a channel is provided between adjacent battery modules 3, the top plate 5a is covered on the channel, one end of the channel is connected to the air outlet pipe 7, and the windshield 5b is installed on the other end of the channel. In this way, the ventilation duct 5 has a simple and convenient structure, and is combined with the side walls of the adjacent battery modules 3 by the top plate 5a and the windshield 5b.

[0031] In some preferred embodiments of the present invention, the box body 1 includes a top cover 1b and a bottom plate 1c, and the top cover 1b is installed on the bottom plate 1c.

[0032] Compared with the prior art, the battery pack structure of the present application has an air inlet 1a on the box body 1, and a heat dissipation duct 4 corresponding to the air inlet 1a is arranged inside the battery module 3, so that external air can enter the heat dissipation duct 4 through the air inlet 1a, and dissipate the heat inside the battery module 3, thereby improving the heat dissipation efficiency and making the heat dissipation more uniform; at the same time, a ventilation duct 5 is arranged between the battery modules 3, and the ventilation duct 5 is connected with the heat dissipation duct 4, so that the air passing through the heat dissipation duct 4 enters the ventilation duct 5, and dissipates the heat between the battery modules 3, and finally is driven by the fan 6 to discharge the hot air from the air outlet 2a; the overall heat dissipation efficiency is high, the effect is good, and the heat dissipation is uniform.

[0033] The above description is only a specific implementation mode of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various modifications and changes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should also be included in the scope of protection of the present application. Therefore, the scope of protection of the present application shall be based on the scope of protection of the claims.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A battery pack structure, characterized in that: include: A box body, wherein two side walls of the box body are provided with a plurality of air inlets; A box cover, the box cover is arranged on the box body, and the box cover is provided with an air outlet; A plurality of battery modules, wherein the battery modules are mounted on the box body, a ventilation duct is arranged between adjacent battery modules, and the battery modules are provided with a heat dissipation duct, one end of the heat dissipation duct is connected to the ventilation duct, and the other end of the heat dissipation duct is arranged corresponding to the air inlet; A fan, the fan is installed on the box cover, and the fan is arranged corresponding to the air outlet; An air outlet pipe, one end of which is communicated with the ventilation duct, and the other end of which is connected to the fan.

2. The battery pack structure according to claim 1, characterized in that: The box cover comprises a front baffle and a panel, slots are arranged on both sides of the panel, and the front baffle is inserted into the slots.

3. The battery pack structure according to claim 1, characterized in that: The air inlets are in a mesh structure, and the air inlets on the same side are evenly spaced.

4. The battery pack structure according to claim 1, characterized in that: The heat dissipation duct is arranged along the short axis direction of the battery module, and the ventilation duct is arranged along the long axis direction of the battery module.

5. The battery pack structure according to claim 1, characterized in that: The ventilation duct includes a top plate and a wind shield. A channel is provided between adjacent battery modules. The top plate covers the channel. One end of the channel is connected to the air outlet pipe, and the wind shield is installed at the other end of the channel.

6. The battery pack structure according to claim 1, characterized in that: The box body comprises a top cover and a bottom plate, and the top cover is mounted on the bottom plate.

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