Power battery pack capable of forming spacers on line

Abstract

The utility model discloses a power battery pack for on-line forming of spacers, which comprises a box body and battery cells installed in the box body, the side surfaces of the battery cells are coated with silica gel structures, the side surfaces of the battery cells are provided with heat insulation structures, a plurality of battery cells are stacked together to form a battery cell assembly, and the battery cell assembly is arranged in the box body. And the silica gel structure and the heat insulation structure are positioned between two adjacent battery cells. According to the power battery pack with the on-line formed spacers, the spacer structures between the battery cells are formed by the silica gel structures coated on the side surfaces of the batteries, so that the power battery pack has the advantages of high applicability, high automation efficiency, low cost and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to power lithium battery technical field especially relates to a power battery package of online forming septum. BACKGROUND

[0002] The battery package of power battery has multiple electric cores, in order to satisfy the circulation breathing space of electric core, septum is often arranged between electric cores, and the septum is mostly adopted integral back type frame or strip splicing, the existing septum is integrally formed and placed between the large area side surface of two adjacent electric cores, and the general baffle is long strip and is separately arranged, and the electric core of same row shares a baffle, just like the baffle disclosed in the authorized announcement no. UTILITY MODEL CONTENTS

[0003] In order to solve the technical problems in the background art, the utility model provides a power battery package of online forming septum.

[0004] The utility model discloses a power battery package of online forming septum, including the box body and the electric core of installing in the box body, the side surface of electric core is coated with silica gel structure, the silica gel structure includes the limiting strip, the side surface of electric core is equipped with heat insulation structure, and in some embodiments, preferably, heat insulation structure and silica gel structure are arranged on the same side surface of electric core, multiple electric core is stacked together and forms electric core assembly, and the silica gel structure and heat insulation structure are located between two adjacent electric cores.

[0005] In the installation process, the silica gel is paste directly coated on the side surface of the electric core to form the silica gel structure, the heat insulation structure can be made of the material with heat insulation effect in the prior art, which can be a plastic plate, preferably, the heat insulation structure is placed on the side surface of the electric core first, and then the silica gel structure is coated to fix the heat insulation structure on the electric core, the silica gel structure has a part located above the side of the heat insulation structure, and then the silica gel mechanism is dried, of course, the silica gel structure can be coated on the electric core and dried first, then the heat insulation structure is clamped between the two limiting strips, and then the electric core is stacked to form the electric core assembly, and then the electric core assembly is placed in the box body. Such separation structure has stronger practicability, and is convenient to process and low in cost.

[0006] In some embodiments, preferably, the silica gel structure is arranged on the large surface of the electric core.

[0007] Further, the heat insulation effect between the electric cores is facilitated.

[0008] In some embodiments, preferably, the limiting strips are provided in at least two groups, a limiting interval is formed between the at least two limiting strips, and the heat insulation structure is located in the limiting interval.

[0009] Further, the installation and limiting of the heat insulation structure are facilitated.

[0010] In some embodiments, preferably, the at least two limiting strips are oppositely arranged, and the at least two limiting strips can realize the fixing and limiting of the heat insulation structure; further, the limiting and fixing of the heat insulation structure are increased.

[0011] In some embodiments, the silica gel structure can be "U" shaped, "II" shaped, "two" shaped or "back" shaped.

[0012] The silica gel structure facilitates the limiting and fixing of the plate-shaped heat insulation structure; it is to be noted that the silica gel structure is a certain distance away from the side edge of the battery cell, which facilitates the coating of the silica gel structure and the installation of the battery cell assembly.

[0013] Preferably, the silica gel structure is made of UV foaming material; further, the installation of the silica gel structure is facilitated, and the silica gel structure has a certain elasticity.

[0014] Preferably, the silica gel structure can be quickly ceramicized at high temperature, which facilitates the curing treatment of the silica gel structure and increases the processing efficiency.

[0015] Preferably, there is a bonding layer between the bottom of the battery cell and the box, which facilitates the fixing of the battery cell and the box.

[0016] In the utility model, the power battery pack formed by the silica gel structure coated on the side of the battery cell has the advantages of strong applicability, high automation efficiency and low cost.

[0017] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is battery pack structure schematic diagram of the utility model;

[0019] Figure 2 It is battery cell assembly structure schematic diagram of the utility model;

[0020] Figure 3 It is battery cell structure schematic diagram of the utility model;

[0021] Figure 4 It is silica gel structure schematic diagram of " U " of some embodiments of the utility model;

[0022] Figure 5 This is a schematic diagram of the "II" type silicone structure in some embodiments of this utility model;

[0023] Figure 6 Schematic diagram of the "two" silicone structure in some embodiments of this utility model;

[0024] In the diagram: 1. Housing; 2. Silicone structure; 20. Limiting strip; 3. Heat insulation structure; 4. Battery cell. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] like Figures 1-6 The power battery pack shown includes a housing 1 and battery cells 4 installed inside the housing 1. The sides of the battery cells 4 are coated with a silicone structure 2. The silicone structure 2 includes at least two opposing limiting strips 20, forming a limiting gap between the at least two opposing limiting strips 20. A heat insulation structure 3 is provided within the limiting gap. The silicone structure 2 and the heat insulation structure 3 form a separator structure between the existing battery cells 4. This separator structure is easy to manufacture and has low cost. Multiple battery cells 4 are stacked together to form a battery cell 4 assembly. The silicone structure 2 and the heat insulation structure 3 are located between two adjacent battery cells 4. Preferably, the silicone structure 2 is made of UV foaming material, which facilitates the installation of the silicone structure 2 and provides a certain degree of elasticity. Preferably, the silicone structure 2 can be rapidly ceramicized at high temperatures, which facilitates the curing process of the silicone structure 2 and increases processing efficiency. In some embodiments, preferably, there is an adhesive layer between the bottom of the battery cell 4 and the housing 1 to facilitate the fixing of the battery cell 4 to the housing 1.

[0027] During installation, silicone, in paste form, is directly applied to the side of the battery cell 4 to form a silicone structure 2. The heat insulation structure 3 can be a plastic sheet as in existing technology. Preferably, the heat insulation structure 3 is placed on the side of the battery cell 4 first, and then the silicone structure 2 is applied to fix the heat insulation structure 3 to the battery cell 4. The silicone structure 2 has a portion located above the side of the heat insulation structure 3. The silicone structure is then dried. Of course, those skilled in the art can also first apply the silicone structure 2 to the battery cell 4 and let it dry, then clip the heat insulation structure 3 between the two opposing limiting strips 20, then stack the battery cells 4 to form a battery cell assembly, and then place the battery cell assembly inside the housing 1. This separation structure has stronger practicality, is easy to process, and has low cost.

[0028] In some preferred embodiments, the silicone structure 2 is disposed on the large surface of the battery cell 4;

[0029] Further facilitate the heat insulation effect between the battery cell 4.

[0030] As Figures 3-6 Optionally shown in some embodiments, the silica gel structure 2 is "U" type, "II" type, "two" type or "back" type;

[0031] The above-mentioned silica gel structure 2 facilitates the limiting and fixing of the plate-shaped heat insulation structure 3; it should be noted that the silica gel structure 2 is a certain distance from the side edge of the battery cell 4, which facilitates the coating of the silica gel structure 2 while facilitating the installation of the battery cell assembly later.

[0032] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or it can only mean that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or it can only mean that the horizontal height of the first feature is less than that of the second feature.

[0034] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled in the art within the technical scope disclosed by the present application, according to the technical scheme and the inventive concept of the present application, can be replaced or changed equivalently, which should be covered within the protection scope of the present application.

Claims

1. An online forming separator power battery pack, comprising a box (1) and an electric core (4) installed in the box (1), characterized in that, The side of the battery cell (4) is coated with a silica gel structure (2), and the side of the battery cell (4) is also provided with a heat insulation structure (3), and the silica gel structure (2) and the heat insulation structure (3) are located between two adjacent battery cells (4).

2. The online shaped separator's power battery pack according to claim 1, characterized in that, The silica gel structure (2) is arranged on the large surface of the battery cell (4).

3. The online shaped separator's power battery pack of claim 1, wherein, The silica gel structure (2) comprises at least two limiting strips (20), and a limiting interval is formed between the at least two limiting strips (20), and the heat insulation structure (3) is located in the limiting interval.

4. The online shaped separator's power battery pack of claim 3, wherein, The at least two limiting strips (20) are oppositely arranged.

5. The online shaped separator power battery pack according to any one of claims 3-4, characterized in that, The silica gel structure (2) is "U"-shaped, "II"-shaped, "two"-shaped or "back"-shaped.

6. The online shaped separator power battery pack of claim 1, wherein, The silica gel structure (2) is made of UV foaming material.

7. The online shaped separator power battery pack of claim 1, wherein, The silica gel structure (2) can be quickly ceramicized at high temperature.

8. The online shaped separator's power battery pack of claim 1, wherein, There is a bonding layer between the bottom of the battery cell (4) and the box (1).

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