Six-direction vacuum baking oven

Abstract

The utility model discloses a six-direction vacuum baking oven which comprises an oven body, at least one vacuum chamber is arranged in the oven body, a front door body and a rear door body which can cover the vacuum chamber are arranged on the front side and the rear side of the oven body respectively, and a first heating pipe and a first net plate covering the outer side of the first heating pipe are arranged on the first side wall of the vacuum chamber. The top wall of the vacuum chamber is provided with a second heating pipe and a second net plate covering the outer side of the second heating pipe, the bottom of the vacuum chamber is provided with a third heating pipe and a third net plate covering the outer side of the third heating pipe, the second side wall of the vacuum chamber is provided with a fan, and the upper end and the lower end of the fan are provided with air inlets respectively. The two air inlets are close to the top wall and the bottom of the vacuum chamber respectively, an air outlet of the fan faces the middle of the vacuum chamber, the outer side of the fan is covered with a fourth net plate, a first electric heating plate is arranged in the front door body, and a second electric heating plate is arranged in the rear door body. According to the utility model, the temperature in the vacuum chamber can be uniformly distributed, and the baking quality and the baking efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to a battery baking box, in particular to a six-position vacuum baking box. Background Art

[0002] Vacuum baking and dehumidification is a very critical process in the battery production process. In practical applications, if the water treatment in the battery electrode electrolyte is not up to standard, it will affect the battery performance, including voltage, internal resistance, self-discharge and other indicators. Therefore, in multiple production processes of the battery, the positive and negative electrodes and the battery cells must be vacuum baked and dehumidified multiple times to remove as much water as possible. For related equipment and processes, please refer to the Chinese patent publication with publication number CN103615873A and titled "A lithium-ion battery baking oven and a battery baking process using the baking oven", which records:

[0003] "A lithium-ion battery baking oven and a battery baking process using the baking oven; the baking oven of the present invention is provided with an air outlet pipe connected to the box body in a closed box body, a blower is provided on the air outlet pipe, the blower is connected to an air inlet pipe for circulating air, the air inlet pipe is connected to the box body, and a dehydration device is provided on the air outlet pipe and / or the air inlet pipe; using the baking process of the baking oven of the present invention, the lithium-ion battery is placed on a placement rack in the box body of the baking oven of the present invention for baking and drying; through the heating of the baking heating device of the baking oven, the hot air passes through the circulation system of the air outlet pipe, the blower, the air inlet pipe and the dehydration device, so that the battery temperature can quickly reach the process baking temperature and dry and dehydrate";

[0004] In this type of equipment, the batteries are dried and baked by a one-way hot air circulation method, in which the dehydration device is located on the air path outside the baking box. This hot air flow method is not only inefficient, but also difficult to ensure uniform temperature in various areas of the baking chamber. However, a large number of batteries are generally placed in each baking chamber, resulting in incomplete baking and drying of some batteries and poor baking quality. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a six-position vacuum baking box which can ensure the balanced temperature distribution in the vacuum chamber and improve the baking quality and baking efficiency in view of the shortcomings of the prior art.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions.

[0007] A six-position vacuum baking oven, which comprises a box body, wherein at least one vacuum chamber is arranged in the box body, a front door body and a rear door body which can cover the vacuum chamber are respectively arranged on the front and rear sides of the box body, a first heating tube and a first mesh plate covering the outer side of the first heating tube are arranged on the first side wall of the vacuum chamber, a second heating tube and a second mesh plate covering the outer side of the second heating tube are arranged on the top wall of the vacuum chamber, a third heating tube and a third mesh plate covering the outer side of the third heating tube are arranged on the bottom of the vacuum chamber, a fan is arranged on the second side wall of the vacuum chamber, air inlets are respectively arranged at the upper and lower ends of the fan, the two air inlets are respectively close to the top wall and the bottom of the vacuum chamber, the air outlet of the fan faces the middle of the vacuum chamber, the outer side of the fan is covered with a fourth mesh plate, a first electric heating plate is arranged in the front door body, and a second electric heating plate is arranged in the rear door body.

[0008] Preferably, two upper and lower vacuum chambers are provided in the box body.

[0009] Preferably, the first heating tube, the second heating tube and the third heating tube are all bent in an S shape.

[0010] Preferably, the first mesh plate, the second mesh plate, the third mesh plate and the fourth mesh plate are sequentially assembled along the circumference of the box body.

[0011] Preferably, a front heat conducting plate is fixed to the inner side of the front door body.

[0012] Preferably, the first electric heating plate is arranged between the front heat conducting plate and the front door body, and the first electric heating plate and the front heat conducting plate are in contact with each other.

[0013] Preferably, a power distribution cabinet is provided on the outside of the box body, and a control panel is provided in the power distribution cabinet.

[0014] In the six-position vacuum baking oven disclosed by the utility model, the vacuum chamber and the mechanism for evacuating the vacuum chamber are arranged in the box body, the vacuum chamber is a chamber with front and rear doors, the front door body and the rear door body respectively cover the front and rear sides of the vacuum chamber, and the front door body and the rear door body are both provided with electric heating plates, the electric heating plates on the front and rear sides are used to radiate heat into the vacuum chamber, and at the same time, the first side wall, the top wall and the bottom of the vacuum chamber are also provided with a first heating tube, a second heating tube and a third heating tube, and at the same time, a fan is arranged on the second side wall of the vacuum chamber, and four enclosed The mesh plate protects the heating tubes and the fan around the vacuum chamber and ensures that heat can pass through the mesh plate. Since the air inlets at the upper and lower ends of the fan are respectively close to the top wall and the bottom of the vacuum chamber, when the fan is running, the hot air flow generated by the second heating tube and the third heating tube can be sucked in and blown to the middle area of ​​the vacuum chamber, which not only realizes the hot air flow circulation inside the vacuum chamber, but also has the effect of six-way vacuum baking, thereby ensuring the balanced temperature distribution in the vacuum chamber, thereby improving the baking quality and baking efficiency, and better meeting the application requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the structural diagram of the box body, front door body and rear door body;

[0016] Figure 2 The internal structure of the vacuum chamber Figure 1 ;

[0017] Figure 3 The internal structure of the vacuum chamber Figure 2 ;

[0018] Figure 4 This is an exploded view of the front door body;

[0019] Figure 5 This is a state diagram of feeding the battery material cart into the vacuum chamber. DETAILED DESCRIPTION

[0020] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments.

[0021] The utility model discloses a six-position vacuum baking box, combined with Figures 1 to 5As shown, it includes a box body 1, in which at least one vacuum chamber 2 is arranged, and the front and rear sides of the box body 1 are respectively provided with a front door body 3 and a rear door body 4 that can cover the vacuum chamber 2, the first side wall of the vacuum chamber 2 is provided with a first heating tube 20 and a first mesh plate 21 covering the outside of the first heating tube 20, the top wall of the vacuum chamber 2 is provided with a second heating tube 22 and a second mesh plate 23 covering the outside of the second heating tube 22, the bottom of the vacuum chamber 2 is provided with a third heating tube 24 and a third mesh plate 25 covering the outside of the third heating tube 24, the second side wall of the vacuum chamber 2 is provided with a fan 26, the upper and lower ends of the fan 26 are respectively provided with air inlets 260, the two air inlets 260 are respectively close to the top wall and the bottom of the vacuum chamber 2, the air outlet of the fan 26 faces the middle of the vacuum chamber 2, the outside of the fan 26 is covered with a fourth mesh plate 27, the front door body 3 is provided with a first electric heating plate 30, and the rear door body 4 is provided with a second electric heating plate.

[0022] In the above structure, the box body 1 is provided with the vacuum chamber 2 and a mechanism for evacuating the vacuum chamber 2. The vacuum chamber 2 is a chamber with front and rear doors. The front door body 3 and the rear door body 4 cover the front and rear sides of the vacuum chamber 2 respectively. In addition, electric heating plates are provided in the front and rear doors 3 and 4. The electric heating plates on the front and rear sides are used to radiate heat into the vacuum chamber 2. At the same time, the first side wall, top wall and bottom of the vacuum chamber 2 are also provided with a first heating tube 20, a second heating tube 22 and a third heating tube 24. At the same time, a fan 26 is provided on the second side wall of the vacuum chamber 2. The four enclosed mesh plates are used to heat the vacuum chamber 2. It protects the heating tubes and fans around the vacuum chamber 2 and ensures that heat can pass through the mesh plate. Since the air inlets 260 at the upper and lower ends of the fan 26 are respectively close to the top wall and the bottom of the vacuum chamber 2, when the fan 26 is running, the hot air flow generated by the second heating tube 22 and the third heating tube 24 can be sucked in and blown to the middle area of ​​the vacuum chamber 2, which not only realizes the hot air flow circulation inside the vacuum chamber 2, but also has the effect of six-way vacuum baking, thereby ensuring the balanced temperature distribution in the vacuum chamber, thereby improving the baking quality and baking efficiency, and better meeting the application requirements.

[0023] In order to improve the battery baking capacity, in this embodiment, the box 1 is provided with two upper and lower vacuum chambers 2. In practical applications, please refer to Figure 5 , a forklift can be used to lift the material truck loaded with batteries and send it into the vacuum chamber 2.

[0024] Combination Figure 2 and Figure 3As shown, in this embodiment, the first heating tube 20, the second heating tube 22 and the third heating tube 24 are all bent in an S shape. In the above structure, the S-shaped bending heating tube can radiate heat into the vacuum chamber 2 in a planar manner, thereby further improving the heat balance.

[0025] Regarding the encirclement method of the four mesh panels, in this embodiment, the first mesh panel 21, the second mesh panel 23, the third mesh panel 25 and the fourth mesh panel 27 are sequentially assembled along the circumference of the box body 1. Specifically, the four mesh panels can be fixed in the vacuum chamber 2 by screws.

[0026] In order to improve the heat transfer efficiency of the electric heating plate in the door body, in this embodiment, a front heat conducting plate 31 is fixed to the inner side of the front door body 3. Further, the first electric heating plate 30 is arranged between the front heat conducting plate 31 and the front door body 3, and the first electric heating plate 30 and the front heat conducting plate 31 are attached to each other. Accordingly, the internal structure of the rear door body 4 is the same as the internal structure of the front door body 3.

[0027] As a preferred embodiment, a power distribution cabinet 5 is provided on the outside of the box 1, and a control panel 50 is provided inside the power distribution cabinet 5. In this embodiment, the electrical control system consists of a control panel and a power distribution control cabinet. The control panel is provided with a PLC touch screen, a temperature control meter, a vacuum gauge and a switch button. The power distribution control cabinet is equipped with electrical components such as a power distribution board bottom plate and a main power leakage circuit breaker. The PLC touch screen is used to control the vacuuming, nitrogen filling, heating, and air conveying steps. The temperature control meter is used to control the temperature uniformity, and the vacuum gauge is used to control the vacuum degree. Through these humanized designs, the equipment operation is ensured to be safe, stable, convenient, and simple, thereby realizing human-machine dialogue control.

[0028] Compared with the prior art, the heating and air transportation system of the utility model adopts internal heating, internal air transportation and furnace door methods. Resistance heating tubes and air transportation fans are installed in the baking chamber for six circles of surround heating, up and down, left and right, front and back. The hot air is operated by the air transportation fan installed at the side end of the baking chamber. The hot air is conducted to the periphery of the outer wall of the entire baking chamber and circulates repeatedly, so that the temperature of the baking chamber quickly reaches the required temperature set for the equipment to work, and is continuously heated at the set temperature in combination with the temperature control table. This embodiment preferably adopts the internal heating and internal air transportation method, which has high heating efficiency, low energy loss, and temperature uniformity is controlled at about ±2°C.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the technical scope of the present invention should be included in the scope of protection of the present invention.

Claims

1. A six-position vacuum baking oven, characterized in that: The invention comprises a box body (1), wherein at least one vacuum chamber (2) is arranged in the box body (1), and a front door body (3) and a rear door body (4) capable of covering the vacuum chamber (2) are respectively arranged on the front and rear sides of the box body (1), a first heating tube (20) and a first mesh plate (21) covering the outside of the first heating tube (20) are arranged on the first side wall of the vacuum chamber (2), a second heating tube (22) and a second mesh plate (23) covering the outside of the second heating tube (22) are arranged on the top wall of the vacuum chamber (2), and a third heating tube (23) is arranged on the bottom of the vacuum chamber (2). 4) and a third mesh plate (25) covering the outer side of the third heating tube (24), a fan (26) is provided on the second side wall of the vacuum chamber (2), and air inlets (260) are respectively provided at the upper and lower ends of the fan (26), and the two air inlets (260) are respectively close to the top wall and the bottom of the vacuum chamber (2), and the air outlet of the fan (26) faces the middle of the vacuum chamber (2), and the outer side of the fan (26) is covered with a fourth mesh plate (27), a first electric heating plate (30) is provided in the front door body (3), and a second electric heating plate is provided in the rear door body (4).

2. The six-position vacuum oven according to claim 1, characterized in that: Two upper and lower vacuum chambers (2) are arranged in the box body (1).

3. The six-position vacuum oven according to claim 1, characterized in that: The first heating tube (20), the second heating tube (22) and the third heating tube (24) are all bent in an S shape.

4. The six-position vacuum oven according to claim 1, characterized in that: The first mesh plate (21), the second mesh plate (23), the third mesh plate (25) and the fourth mesh plate (27) are assembled in sequence along the circumference of the box body (1).

5. The six-position vacuum oven according to claim 1, characterized in that: A front heat conducting plate (31) is fixed on the inner side of the front door body (3).

6. The six-position vacuum oven according to claim 5, characterized in that: The first electric heating plate (30) is arranged between the front heat conducting plate (31) and the front door body (3), and the first electric heating plate (30) and the front heat conducting plate (31) are in contact with each other.

7. The six-position vacuum oven according to claim 1, characterized in that: A power distribution cabinet (5) is provided on the outside of the box body (1), and a control panel (50) is provided inside the power distribution cabinet (5).

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