Energy-gathering oven heating device

Abstract

The utility model relates to the technical field of lithium battery production, and particularly discloses an energy-gathered oven heating device which comprises a first heating module which comprises a first heating assembly and a second heating assembly. The first heating assembly and the second heating assembly are oppositely arranged, and a gap is reserved between the first heating assembly and the second heating assembly; each of the first heating assembly and the second heating assembly comprises a plurality of heating units arranged in the pole piece tape conveying direction, each heating unit comprises an energy-gathering lamp tube and an energy-gathering lampshade, a reflecting cambered surface is arranged on each energy-gathering lampshade, the energy-gathering lamp tubes are arranged in the reflecting cambered surfaces, and the energy-gathering lamp tubes are arranged in the reflecting cambered surfaces. Therefore, the energy-gathering lamp tube gathers and emits heating light to the pole piece. The utility model has the following technical effects: the heating mode is concentrated, parallel light uniformly irradiates the pole piece, the heating is continuous, the heat overflow is reduced, and the internal stress and rebound of the pole piece can be effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium battery production, and in particular relates to an energy-gathering oven heating device. Background Art

[0002] In the battery manufacturing process, the rolling process of the negative electrode is a key step, which directly affects the performance and life of the battery. However, after rolling, it is often found that the electrode has a problem of slow rebound. Usually, heating treatment of the electrode is considered to reduce the stress and rebound phenomenon inside the electrode.

[0003] At present, there are two main traditional heating methods. The first method is to heat the air and blow the hot air to the surface of the electrode using a fan or a circulating pump to achieve the heating effect. The second method is to use a heating lamp to radiate heat to the electrode. The heat generated by the heating lamp is transferred to the surface of the electrode by radiation, thereby achieving the heating effect.

[0004] However, the above two heating methods can only heat the surface of the electrode, but cannot achieve the effect of penetrating heating, so that the electrode cannot fully rebound. Utility Model Content

[0005] In order to solve the deficiencies of the prior art, the utility model provides an energy-concentrating oven heating device.

[0006] The technical effects to be achieved by the utility model are achieved through the following technical aspects:

[0007] A concentrated oven heating device, used for heating a pole piece, comprises a first heating module arranged along the pole piece running direction, the first heating module comprises a first heating component and a second heating component, the first heating component and the second heating component are arranged opposite to each other and a gap is left between the first heating component and the second heating component for the pole piece to run;

[0008] The first heating component and the second heating component both include a plurality of heating units arranged along the pole piece's tape-walking direction, the heating units include a focusing lamp tube and a focusing lamp cover, the focusing lamp cover is provided with a reflecting arc surface, the focusing lamp tube is arranged in the reflecting arc surface so that the heating light emitted by the focusing lamp tube is focused toward the pole piece.

[0009] In some embodiments, a reflective coating is provided on the reflective arc surface.

[0010] In some embodiments, a second heating module is further included which is arranged along the pole piece running direction, and the heating temperature of the second heating module is greater than the heating temperature of the first heating module.

[0011] In some embodiments, a light shield is disposed on one side of the first heating module to prevent light from the focusing lamp from spilling out.

[0012] In some embodiments, a temperature sensor for detecting the first heating module and / or detecting the temperature of the pole piece is also included.

[0013] In some embodiments, a heat dissipation module for cooling the first heating module is also included.

[0014] In some embodiments, the heat dissipation module includes a heat dissipation pipe and a water cooler connected to the heat dissipation pipe, and the heat dissipation pipe is arranged in the energy-concentrating lampshade to dissipate heat from the energy-concentrating lampshade.

[0015] In some embodiments, the heat dissipation module further includes a water immersion sensor for detecting whether the cooling water is leaking, and the water immersion sensor is disposed on the first heating module.

[0016] In some embodiments, a driving component is disposed on the first heating component and / or the second heating component to drive the first heating component and / or the second heating component to move closer to or away from the pole piece.

[0017] In some embodiments, a protective cover and a dust removal guide plate are also included. The protective cover is arranged on one side of the energy focusing lamp cover, and the dust removal guide plate is arranged at one end of the protective cover.

[0018] In summary, the utility model has the following benefits:

[0019] In the utility model, the electrode passes through the first heating module, and by setting the focusing lamp tube and the focusing lamp cover, the light emitted by the focusing lamp tube can be irradiated on the electrode in parallel, so that the temperature is more penetrating and both sides of the electrode are heated. Compared with the existing heating method, this structure not only has lower energy consumption, but also has a concentrated heating method, so that the parallel light can evenly irradiate the electrode, continuously heat and increase the temperature, reduce heat spillover, and effectively reduce the internal stress and rebound of the electrode, so as to achieve a deep baking or curing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a cross-sectional view of the energy-concentrating oven heating device in an embodiment of the present application.

[0021] Figure 2 It is a cross-sectional view of the first heating module in the embodiment of the present application.

[0022] Figure 3 It is a schematic diagram of the structure of the heat dissipation module in the embodiment of the present application.

[0023] Figure 4 It is a schematic diagram of the structure of the energy-concentrating oven heating device in an embodiment of the present application.

[0024] Markings in the figure:

[0025] 100, heating light; 200 pole piece;

[0026] 1. First heating module; 110. First heating component; 120. Second heating component;

[0027] 2. Second heating module; 3. Light shield; 4. Temperature sensor;

[0028] 5. heat dissipation module; 510. heat dissipation pipe; 520. water cooling machine; 530. water immersion sensor;

[0029] 6. Driving assembly; 7. Protective cover; 8. Dust removal guide plate;

[0030] 10. Heating unit; 11. Focusing lamp tube; 12. Focusing lamp cover; 12a. Reflecting arc surface. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. The described embodiment is a contact part embodiment of the utility model, not all embodiments.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0033] Example 1

[0034] Please see attached Figure 1-2 , this embodiment provides an energy-concentrating oven heating device for heating the pole piece 200, including a first heating module 1 arranged along the tape direction of the pole piece 200, and the first heating module 1 is mainly used to heat the pole piece 200 to reduce the internal force and rebound of the pole piece 200. It can be understood that it can also include a second heating module 2, a third heating module, etc., and this embodiment does not specifically limit the number of heating modules. The second heating module 2, the third heating module, etc. can be infrared lamps, quartz lamps, carbon fiber heating tubes, etc. to heat the pole piece 200; it can also be heated by existing heating methods such as filling hot air to heat the pole piece 200; of course, it can also be arranged in the same way as the above-mentioned first heating module 1.

[0035] The first heating module 1 includes a first heating component 110 and a second heating component 120. For the convenience of description, two mounting plates are introduced. The first heating component 110 and the second heating component 120 are arranged on the mounting plates. The first heating component 110 and the second heating component 120 are arranged opposite to each other and a gap is left between the first heating component 110 and the second heating component 120 for the pole piece 200 to run. During use, the pole piece 200 passes through the gap between the first heating component 110 and the second heating component 120, and both sides thereof are heated to improve the heating efficiency and make it evenly heated.

[0036] The first heating assembly 110 and the second heating assembly 120 each include a plurality of heating units 10 arranged along the running direction of the pole piece 200. The heating units 10 may be arranged in close contact with each other or with gaps therebetween. The specific design method is set according to the actual situation. The heating unit 10 includes a focusing lamp tube 11 and a focusing lamp cover 12. The focusing lamp cover 12 is provided with a reflective arc surface 12a. The focusing lamp tube 11 is arranged in the reflective arc surface 12a so that the focusing lamp tube 11 focuses the heating light 100 toward the pole piece 200.

[0037] The focusing lampshade 12 can reflect the heating light 100. The focusing lampshade 12 can be a material with a reflective property such as metal, glass, lens, etc., and its reflecting surface is a parabola or an elliptical surface. The focusing lamp tube 11 can be an infrared lamp tube, a quartz lamp tube, a carbon fiber heating tube, etc., which has a heating property. This embodiment is not limited here. A reflecting arc surface 12a is arranged inside the focusing lampshade 12. The focusing lamp tube 11 is arranged in the reflecting arc surface 12a. The reflecting arc surface 12a is calculated and selected according to the actual situation. The heating light of the focusing lamp tube 11 is refracted through the reflecting arc surface 12a and irradiated vertically on the pole piece 200, thereby achieving heating of the pole piece 200 (as shown by the dotted line in 2 in the accompanying drawing).

[0038] In this embodiment, by setting the first heating module 1, the pole piece 200 passes through the heating module. By setting the focusing lamp tube 11 and the focusing lamp cover 12, the light emitted by the focusing lamp tube 11 can be irradiated on the pole piece 200 in parallel, so that the temperature is more penetrating and both sides of the pole piece 200 are heated. Compared with the existing heating method, this structure not only has lower energy consumption, but also has a concentrated heating method to reduce heat spillover. It can effectively reduce the internal stress and rebound of the pole piece 200, and achieve a deep baking or curing effect. According to actual experiments, parallel light irradiation evenly irradiates the pole piece, and continuously heats and increases the temperature.

[0039] Example 2

[0040] The difference between Example 2 and Example 1 is that the present embodiment further optimizes the energy-gathering oven heating device, such as Figure 1As shown, further, a reflective coating is provided on the reflective arc surface 12a. The reflective coating can be a metal reflective film, a protective aluminum film, etc. By providing the reflective coating, the reflective ability of the reflective arc surface 12a to light can be enhanced, so that it has good reflective properties and improves heating efficiency.

[0041] In some embodiments, a second heating module 2 is also included, which is arranged along the tape direction of the pole piece 200, and the heating temperature of the second heating module 2 is greater than the heating temperature of the first heating module 1. There is a gap between the second heating module 2 and the first heating module 1, which is used to perform secondary heating on the pole piece 200, further reducing the internal stress and rebound of the pole piece 200. The second heating module 2 can be arranged in a similar manner to the first heating module 1, and it can also be heated by other existing methods, such as blowing hot air, using heating lamps, etc. The second heating module 2 performs two-stage heating on the pole piece 200, and its heating temperature is preferably twice that of the first heating module 1. Exemplarily, the first heating module 1 heats the pole piece 200 to 100-200°C, and the second heating module 2 heats the pole piece 200 to 300-400°C, reducing the internal stress and rebound of the pole piece 200 and improving the quality of the pole piece 200.

[0042] In some embodiments, a light shield 3 for preventing light from the focusing lamp 11 from spilling out is disposed on one side of the first heating module 1. The light shield 3 is disposed outside the first heating module 1, mainly to prevent light from the focusing lamp 11 from spilling out and improve heating efficiency.

[0043] In some embodiments, a temperature sensor 4 for detecting the temperature of the first heating module 1 and / or the pole piece 200 is also included. The temperature sensor 4 may be an infrared temperature sensor. By setting the infrared temperature sensor, the temperature of the first heating module 1 or the pole piece 200 can be monitored and data feedback can be performed, so that the staff can grasp the operating temperature of the equipment and prevent the excessively high or low temperature from affecting the properties of the pole piece 200. It is understandable that the temperature sensor 4 may also be provided in the second heating module 2.

[0044] Example 3

[0045] The difference between Example 3 and Example 1 is that this example further optimizes the energy-concentrating oven heating device, such as Figure 1 , 3 As shown, further, a heat dissipation module 5 for cooling the first heating module 1 is also included. The heat dissipation module 5 is mainly used to cool the first heating module 1 to dissipate heat, so that its internal temperature is maintained within a certain range, to prevent its temperature from being too high to damage the device and reduce the efficiency of the device. Exemplarily, the cooling module can be provided in the form of air cooling, water cooling, etc., which is not limited in this embodiment.

[0046] In some embodiments, the heat dissipation module 5 includes a heat dissipation pipe 510 and a water cooler 520 connected to the heat dissipation pipe 510. The heat dissipation pipe 510 is arranged in the energy-concentrating lampshade 12 to dissipate heat from the energy-concentrating lampshade 12. The heat dissipation pipe 510 is arranged on one side of the energy-concentrating lampshade 12, and includes a water inlet and a water outlet. The water cooler 520 is used to provide cooling liquid for the heat dissipation pipe 510, and the cooling liquid flows into the water inlet and flows out of the water outlet. The water cooler 520 transmits the cooling liquid to the heat dissipation cover through the heat dissipation pipe 510, and cools down the first heating module 1 through the flow of the cooling liquid to prevent the internal temperature from being too high. By setting up a water cooling method, the cooling efficiency is higher, the service life of the energy-concentrating lamp tube 11 and the lampshade is increased, and at the same time, the heat is prevented from being conducted away and affecting other components.

[0047] Exemplarily, the heat dissipation module 5 may also include detection equipment such as a pressure gauge, a thermometer, and a flow meter, which are arranged on the heat dissipation pipe 510 to detect the pressure, temperature, and flow of the coolant in the heat dissipation pipe 510 in real time to facilitate control of the water cooling system.

[0048] In some embodiments, the heat dissipation module 5 further includes a water immersion sensor 530 for detecting whether cooling water has leaked, and the water immersion sensor 530 is disposed on the first heating module 1. Specifically, a water receiving box is disposed at the bottom of the first heating module 1, and a water immersion sensor 530 is disposed in the water receiving box. When cooling water leaks, the water immersion sensor 530 senses and gives a feedback alarm prompt, thereby improving the stability of the equipment. At the same time, the water receiving box can also prevent the coolant from flowing into the first heating module 1, thereby preventing the outflowing coolant from damaging the first heating module 1.

[0049] Example 4

[0050] The difference between Example 4 and Example 1 is that this example further optimizes the energy-concentrating oven heating device. Figure 4 As shown, further, a driving component 6 is provided on the first heating component 110 and / or the second heating component 120 to drive the first heating component 110 and / or the second heating component 120 to move closer to or away from the pole piece 200. It is understandable that the driving component 6 can be connected to the first heating component 110 to drive the first heating component 110 to move toward the pole piece 200; the driving component 6 can also be connected to the second heating component 120 and the first heating component 110 to drive the first heating component 110 and the second heating component 120 to move toward the pole piece 200 respectively, or it can be connected to the second heating component 120 to drive the second component to move toward the pole piece 200, thereby improving the heating efficiency and ensuring that the reflected light is evenly irradiated on the pole piece 200.

[0051] It is understandable that the driving component 6 can be a cylinder, a screw guide rail, a gear rack, etc. Exemplarily, the driving component 6 is a cylinder and a guide rail, wherein a guide rail is arranged in a direction close to or away from the pole piece 200, a slider is arranged on the guide rail, the first heating component 110 is connected to the slider, and a cylinder is arranged on the first heating component 110, and the first heating component 110 is driven to move along the slide rail direction by the extension and contraction of the cylinder, so as to achieve its distance from or approach to the pole piece 200. It is understandable that the setting mode of the second heating component 120 can be consistent with the setting mode of the first heating component 110, or it can be inconsistent, which will not be repeated here.

[0052] Example 5

[0053] The difference between Example 5 and Example 1 is that the oven heating device is further optimized in this example. Figure 4 As shown, further, it also includes a protective cover 7 and a dust removal guide plate 8, the protective cover 7 is arranged on one side of the energy-concentrating lamp cover 12, and the dust removal guide plate 8 is arranged at one end of the protective cover 7. Among them, the protective cover 7 is close to the energy-concentrating lamp tube 11 and the lamp cover, and the dust removal guide plate 8 is arranged above it to facilitate the discharge of waste and guide the gas.

[0054] A second layer of protective cover 7 may also be included. The second layer of protective cover 7 is separated from the above protective cover 7 and is disposed on one side of the first heating module 1 to guide the discharged waste and hot air.

[0055] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0057] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0058] In the present utility model, unless otherwise clearly specified and limited, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being above, above, and above the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being below, below, and below the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0059] Although the utility model is described in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes based on the above content. Therefore, all such substitutions, improvements and changes are included in the spirit and scope of the appended claims.

Claims

1. A concentrated oven heating device for heating a pole piece, characterized in that: It comprises a first heating module, the first heating module comprises a first heating component and a second heating component, the first heating component and the second heating component are arranged opposite to each other and a gap is left between the first heating component and the second heating component for the pole piece to be carried; The first heating component and the second heating component both include a plurality of heating units arranged along the pole piece's tape-walking direction, the heating units include a focusing lamp tube and a focusing lamp cover, the focusing lamp cover is provided with a reflecting arc surface, the focusing lamp tube is arranged in the reflecting arc surface so that the heating light emitted by the focusing lamp tube is focused toward the pole piece.

2. The energy-concentrating oven heating device according to claim 1, characterized in that: A reflective coating is arranged on the reflective arc surface.

3. The energy-concentrating oven heating device according to claim 1, characterized in that: It also includes a second heating module arranged along the pole piece running direction, and the heating temperature of the second heating module is greater than the heating temperature of the first heating module.

4. The energy-concentrating oven heating device according to claim 1, characterized in that: A light shield is disposed on one side of the first heating module to prevent the heat light generated by the focusing lamp tube from spilling out.

5. The energy-concentrating oven heating device according to claim 1, characterized in that: It also includes a temperature sensor for detecting the first heating module and / or detecting the temperature of the pole piece.

6. The energy-concentrating oven heating device according to claim 1, characterized in that: It also includes a heat dissipation module for cooling the first heating module.

7. The energy-concentrating oven heating device according to claim 6, characterized in that: The heat dissipation module includes a heat dissipation pipe and a water cooler connected to the heat dissipation pipe. The heat dissipation pipe is arranged in the energy-concentrating lampshade to dissipate heat from the energy-concentrating lampshade.

8. The energy-concentrating oven heating device according to claim 7, characterized in that: The heat dissipation module further includes a water immersion sensor for detecting whether cooling water is leaking, and the water immersion sensor is arranged on the first heating module.

9. The energy-concentrating oven heating device according to claim 1, characterized in that: The first heating component and / or the second heating component is provided with a driving component to drive the first heating component and / or the second heating component to approach or move away from the pole piece.

10. The energy-concentrating oven heating device according to claim 1, characterized in that: It also includes a protective cover and a dust removal guide plate. The protective cover is arranged on one side of the energy focusing lamp cover, and the dust removal guide plate is arranged at one end of the protective cover.

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