Contact type heating assembly

Abstract

The utility model discloses a contact type heating assembly which comprises a first support, a cover plate, a heating film and a heating plate are sequentially installed on the first support, a first baffle is arranged on one side of the first support, a plurality of material boxes are arranged on the heating plate in an array mode, and the material boxes are used for containing lithium batteries. Temperature probes for detecting heating temperature are mounted on the cover plate at intervals; contact type heating and baking of the lithium battery are achieved, multi-layer synchronous baking can be conducted at the same time, and the baking efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery baking technology, and in particular to a contact heating component. Background Technology

[0002] Because the moisture content inside lithium batteries must be strictly controlled, as moisture significantly impacts battery performance, including voltage, internal resistance, and self-discharge, excessive moisture content can lead to product failure, quality degradation, and even explosion. Therefore, in multiple production processes of lithium batteries, the positive and negative electrode sheets, the battery cell, and the main battery itself undergo multiple vacuum baking processes to remove as much moisture as possible.

[0003] A battery-specific vacuum oven is a vacuum oven specifically designed for the baking process of lithium-ion batteries. Due to the special nature of the oven materials, a lithium battery-specific vacuum oven needs to have characteristics such as resistance to strong acid and alkali corrosion, precise temperature control, high efficiency of program control, and stability and safety.

[0004] Existing vacuum ovens primarily heat and bake lithium batteries by placing them inside the cavity. This non-contact baking method results in slow heat conduction and low baking efficiency. Utility Model Content

[0005] (I) Technical Issues

[0006] The purpose of this invention is to provide a contact heating component to solve the problems of slow heat conduction and low baking efficiency in existing vacuum ovens that use internal circulating hot air heating, which is a non-contact baking method.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A contact heating assembly includes a first bracket, on which a cover plate, a heating film, and a heating plate are sequentially mounted. A first baffle is provided on one side of the first bracket. Multiple material boxes are arranged in an array on the heating plate, and the material boxes are used to hold lithium batteries. Temperature probes for detecting the heating temperature are installed at intervals on the cover plate.

[0010] Preferably, the material box includes a box body, the bottom of the box body has an array of through holes for exposing a portion of the lithium battery, and the bottom of the box body has four limiting posts located around each of the through holes.

[0011] Preferably, the support includes a layered support, which includes multiple uprights spaced apart, and the uprights are provided with multiple hollow supports arranged longitudinally, each hollow support being used to support and position the first support.

[0012] Preferably, one of the uprights is provided with a wiring board, and the heating film and the wires of the temperature probe are laid along the wiring board.

[0013] Preferably, the hollow support includes support rods fixed between two adjacent uprights, and the four support rods enclose the hollow support, wherein a second baffle is fixed on each of the two opposite support rods.

[0014] Preferably, the heating plate is equipped with a partition located between two adjacent material boxes.

[0015] Preferably, the material box is made of a thermally conductive material.

[0016] (III) Beneficial Effects

[0017] A single-layer baking unit is formed by integrating the cover plate, heating film, and heating plate through the first bracket. The heating film generates heat and then transfers the heat directly upward through the heating plate. Multiple material boxes are arranged in an array on the heating plate and are limited by the first baffle to prevent them from falling. Several lithium batteries are placed in the multiple material boxes. After the heating plate conducts heat to the material boxes, contact heating can be formed from the bottom and the surrounding area of ​​the lithium batteries. The heat is directly conducted to the lithium batteries through the material boxes, which can improve the baking efficiency.

[0018] Furthermore, multiple baking units can be stacked and heated independently, allowing the lithium batteries between adjacent layers to be baked simultaneously from both the top and bottom, resulting in higher efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the material box structure in an embodiment of the present utility model;

[0021] Figure 3 A schematic diagram of the stacked lithium battery structure according to an embodiment of this utility model;

[0022] exist Figures 1 to 3 In the diagram, the correspondence between component names or lines and the drawing numbers is as follows:

[0023] 1. First bracket 2. Cover plate 3. Heating film 4. First baffle 5. Material box 5. Box body 51. Through hole 52. Limiting post 53. Temperature probe 6. Layered bracket 7. Upright pole 71. Hollow bracket 72. Wiring board 73. Support rod 74. Second baffle 75. Heating plate 8. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] See Figure 1-Figure 3 As shown in the figure, an embodiment of this utility model proposes a contact heating assembly, including a first support 1. A cover plate 2, a heating film 3, and a heating plate 8 are sequentially mounted on the first support 1. The first support 1 fixes the cover plate 2 and the heating plate 8, protecting the internally laid heating film 3, forming a unit structure. Heat is generated when the heating film 3 is energized, and the heat can be conducted through the cover plate 2 and the heating plate 8. Simultaneously, a first baffle 4 is provided on one side of the first support 1. Multiple material boxes 5 are arranged in an array on the heating plate 8. The material boxes 5 are used to place lithium batteries, positioning them and conducting heat from the heating plate 8 to form contact heating of the lithium batteries, improving baking efficiency. Furthermore, the entire unit structure can be stacked, allowing the heat conducted downwards from the cover plate 2 to rapidly increase the heat on the upper and lower sides of the lithium battery.

[0026] Meanwhile, temperature probes 6 for detecting the heating temperature are installed at intervals on the cover plate 2. Temperature probes 6 can be used to collect the temperature of each unit structure individually, which makes it easier to control the optimal temperature for baking lithium batteries.

[0027] Specifically, the material box 5 can effectively conduct heat to the lithium battery for baking. The material box 5 is made of a heat-conducting material, such as metal or a plastic material with good heat resistance. The material box 5 includes a box body 51. The bottom of the box body 51 has an array of through holes 52 for exposing part of the lithium battery. The bottom of the box body 51 has four limiting posts 53 located around each of the through holes 52. The through holes 52 can position the lithium battery and ensure that the heat from the bottom is transferred upwards. The limiting posts 53 not only limit the lithium battery to ensure that it is placed vertically, but the heat generated by the limiting posts 53 will also radiate from the surrounding area, further increasing the temperature around the lithium battery and making full use of the contact heating method to improve baking efficiency.

[0028] To increase the number of lithium batteries that can be baked, multiple unit structures can be stacked and arranged, and heat can be generated independently to bake the corresponding layers. The temperature of adjacent layers can also be increased. Specifically, it includes a layered support 7, which includes multiple uprights 71 arranged at intervals. The uprights 71 are provided with multi-layer hollow supports 72 arranged longitudinally. Each layer of hollow supports 72 is used to support and position the first support 1. By supporting and positioning the first support 1 of the corresponding layer through the multi-layer hollow supports 72, a multi-layer unit structure can be stacked and arranged, thereby increasing the number of lithium batteries that can be baked at one time.

[0029] Meanwhile, a wiring board 73 is provided on one of the uprights 71. The wires of the heating film 3 and the temperature probe 6 are laid along the wiring board 73, which facilitates the collection and routing of internal wires and can form heat insulation at the routing location to avoid damage to the wires.

[0030] Specifically, the hollow support 72 includes support rods 74 fixed between two adjacent uprights 71. The four support rods 74 enclose the hollow support 72. Each of the two opposing support rods 74 is fixed with a second baffle 75. The support rods 74 are fixed between the uprights 71 to achieve load bearing. The second baffles 75 on both sides have a positioning function when placing the unit structure, and provide relative positioning guidance when the first support 1 is removed from or placed on the support rods 74.

[0031] To facilitate the relative positioning and separation of adjacent material boxes 5, a partition is installed on the heating plate 8 between two adjacent material boxes 5. Of course, the partition can also be integrated into the material box 5, and the material box 5 is placed and then positioned to maintain the spacing between the material boxes 5.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A contact heating assembly, characterized in that: The device includes a first bracket on which a cover plate, a heating film, and a heating plate are sequentially mounted. A first baffle is provided on one side of the first bracket. Multiple material boxes are arranged in an array on the heating plate. The material boxes are used to hold lithium batteries. Temperature probes for detecting the heating temperature are installed at intervals on the cover plate.

2. The contact heating assembly according to claim 1, characterized in that: The material box includes a box body, the bottom of which is provided with an array of through holes for exposing a portion of the lithium battery, and the bottom of the box body is provided with four limiting posts located around each of the through holes.

3. A contact heating assembly according to claim 1 or 2, characterized in that: The system includes a layered support structure, which comprises multiple uprights spaced apart. Each upright is equipped with a multi-layered hollow support structure arranged longitudinally, and each layer of hollow support structure is used to support and position the first support structure.

4. A contact heating assembly according to claim 3, characterized in that: One of the poles is equipped with a wiring board, and the heating film and the wires of the temperature probe are laid along the wiring board.

5. A contact heating assembly according to claim 3, characterized in that: The hollow support includes support rods fixed between two adjacent uprights, and the four support rods together form the hollow support. Each of the two opposite support rods is fixed with a second baffle.

6. A contact heating assembly according to claim 3, characterized in that: The heating plate is equipped with a partition located between two adjacent material boxes.

7. A contact heating assembly according to claim 3, characterized in that: The material box is made of thermally conductive material.

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