An online infrared heating device for pole ears

Abstract

The invention discloses an online pole ear infrared heating device, which relates to the technical field of lithium battery processing. It is mainly aimed at heating the pole ear position in the lithium battery pole piece, takes the energy generated by an infrared lamp as a heat source, and radiates the light of the infrared lamp in a direction through a high-reflective gold-plated concave mirror. For this, the cross-sectional contour line of the inner wall of a gold-plated lampshade is further limited according to the setting position of the infrared lamp, so that the light of the infrared lamp is concentrated and presented as a parallel area, and its purpose is to concentrate the light source so that the light source is only directed to the narrow edge position in the pole piece, and on the basis of ensuring energy concentration, it is also prevented that the high-heat light acts on the rest of the pole piece. On this basis, a movable arc piece is further arranged for the inner wall position of the gold-plated lampshade, and the setting angle of the movable arc piece is changed in conjunction with a reverse and same-speed rotation mode, and its purpose is to shorten or expand the "width" of the light source, and a water-cooling pipeline or an air-cooling fin is arranged on the back of the gold-plated lampshade to provide cooling and temperature-reducing protection for the entire lampshade.

Description

Technical Field

[0001] The invention relates to the technical field of lithium battery processing, and in particular to an online tab infrared heating device. Background Art

[0002] Lithium battery pole pieces are key components in lithium-ion batteries. Their main functions include storing and releasing electrical energy. In particular, this article explains the process of heating the pole tabs in lithium battery pole pieces. Its purpose is to solve the problem of decreased charge and discharge performance of the battery due to increased viscosity of the electrolyte and increased internal resistance of the battery. For details, please refer to the relevant content mentioned in publication number CN109037752A.

[0003] After the lithium battery pole piece is rolled, the middle electrode material part is extended, and the two sides or multiple blank parts of the pole ears will not be extended because they are not rolled. In this way, the pole piece will be wrinkled and uneven at the intersection of the electrode material area and the pole ear, and the pole piece will enter the next production process. In this regard, it is also necessary to explain the heating process of the pole ear: the temperature during the heating process should not be too high / low, and it is only limited to the pole ear part. First, ensure that the temperature is concentrated in the pole ear part to avoid the high temperature environment affecting other areas outside the pole piece. Secondly, auxiliary cooling is required to avoid excessive temperature and burning the product. However, during the cooling process, it is also necessary to ensure that the temperature fluctuation is relatively stable to avoid excessive temperature difference affecting the heating effect or even aggravating wrinkles and unevenness.

[0004] This application proposes a solution to this problem. Summary of the invention

[0005] The purpose of the present invention is to provide an online tab infrared heating device, which is used to illustrate the heating process of the tab in a lithium battery pole piece. It is necessary to avoid burning the product due to excessive temperature, and also to avoid large temperature differences that affect the heating effect. In addition, the temperature heating process needs to be limited to the narrow edge (tab) of the lithium battery pole piece.

[0006] The object of the present invention can be achieved by the following technical scheme: an online pole ear infrared heating device, comprising a lithium battery pole piece, a gold-plated lampshade, and an infrared lamp, wherein the infrared lamp is installed inside the gold-plated lampshade, the gold-plated lampshade is arranged at the upper and lower sides of the lithium battery pole piece, and a cooling component is arranged inside the gold-plated lampshade;

[0007] The inner wall of the gold-plated lampshade is symmetrically provided with movable arc pieces along the width direction of the lithium battery pole piece, and the inner wall of the gold-plated lampshade and the movable arc pieces corresponding to the infrared lamp head is provided with a high-reflection gold-plated concave mirror, and the inner contour lines in the cross-section of the gold-plated lampshade and the movable arc pieces adopt the optical refraction curve angle;

[0008] An infrared temperature measuring probe group is arranged on the left side of the gold-plated lampshade, and an installation cover is installed on the right side of the gold-plated lampshade, and a working guide wheel group corresponding to the movable arc piece is arranged inside the installation cover.

[0009] It is further configured as follows: the gold-plated lampshade is linearly and equidistantly arranged along the width direction of the lithium battery pole piece, the side position where the lithium battery pole pieces at two adjacent positions are close to each other is set as a narrow side, and the setting position of the gold-plated lampshade corresponds to the setting position of the narrow side.

[0010] It is further configured as follows: the setting directions of the infrared temperature measuring probe group and the working guide wheel group match the transmission direction of the lithium battery pole piece, and the transmission direction of the lithium battery pole piece is along the direction from the working guide wheel group to the infrared temperature measuring probe.

[0011] It is further configured as follows: the setting direction of the infrared lamp is parallel to the length direction of the lithium battery electrode, the cooling component includes a water cooling pipeline or an air cooling fin, and the setting direction of the water cooling pipeline matches the setting direction of the infrared lamp.

[0012] It is further configured as follows: the working guide wheel group includes a servo motor, a second guide wheel, a first gear, a second gear and three first guide wheels, wherein the center point of one of the first guide wheels is installed at the rotation point position of one of the movable arc pieces corresponding to the gold-plated lampshade, and the remaining two first guide wheels are rotatably installed on the gold-plated lampshade, and belts are provided on the three first guide wheels and second guide wheels.

[0013] It is further configured as follows: the first gear and the second guide wheel are fixedly connected, the second gear and the first gear are externally meshed, and the second gear and another movable arc piece corresponding to the rotation point position of the gold-plated lampshade are fixedly connected, and the output shaft of the servo motor is fixedly connected to the center point position of the first guide wheel.

[0014] It is further configured as follows: the diameter of the second gear is larger than the diameter of the first gear, and the diameter of the second guide wheel is smaller than the outer diameter of the first guide wheel.

[0015] The present invention has the following beneficial effects:

[0016] 1. The present invention is mainly aimed at the heating process of the pole ear (narrow edge) in the pole piece of the lithium battery. Specifically, based on the infrared light generated by the infrared lamp, it is reflected by a high-reflective gold-plated concave mirror to concentrate the energy and direct it to form a width radiation matching the narrow edge area of ​​the pole ear. Its purpose is: to use the energy generated by the infrared lamp light source as the only heat source, and to further limit the cross-sectional contour line of the inner wall of the gold-plated lampshade according to the setting position of the infrared lamp, so that the light of the infrared lamp is concentrated and presented as parallel light energy radiation. Its purpose is to concentrate the light source so that the light source is only aimed at the narrow edge of the pole piece, and on the basis of ensuring the radiation energy, it also avoids the high heat light from radiating to the rest of the pole piece;

[0017] 2. Combined with the above content, it is explained again that: first, a movable arc piece is further added to the inner wall of the gold-plated lampshade, and a working guide wheel group is provided in conjunction with it. The essence of this is to make the two movable arc pieces rotate in opposite directions at the same speed through electric drive, and to change the setting angle of the movable arc piece in conjunction with the opposite and same speed rotation mode. The purpose is to shorten or expand the "width" of the light source, which is mainly used to cooperate with the heating process of lithium battery pole pieces of different sizes;

[0018] 3. Based on the above heating process, the temperature of the heated tab is detected by an infrared thermometer, and the power output ratio of the infrared lamp is adjusted by an intelligent power control cabinet. On this basis, the setting direction of the infrared thermometer is further restricted according to the transmission direction of the lithium battery pole piece, and the intelligent power control cabinet is used to adjust the power output ratio of the infrared lamp in conjunction with the infrared temperature measurement method to actively change the heating temperature of the tab to avoid the negative processing effects caused by excessively high / low temperatures. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a structural schematic diagram of an online pole-ear infrared heating device proposed by the present invention;

[0021] Figure 2 In an online pole ear infrared heating device proposed by the present invention Figure 1 Side view of

[0022] Figure 3 It is a right side view of a gold-plated lampshade in an online pole-ear infrared heating device proposed by the present invention;

[0023] Figure 4It is a left-side cross-sectional view of a gold-plated lampshade in an online pole-ear infrared heating device proposed by the present invention;

[0024] Figure 5 The present invention provides a schematic structural diagram of a working guide wheel group in an online pole-ear infrared heating device.

[0025] In the figure: 1. Lithium battery pole piece; 2. Gold-plated lampshade; 3. Infrared temperature probe group; 4. Cooling assembly; 5. First gear; 6. Second gear; 7. First guide wheel; 8. Infrared lamp head; 9. Belt; 10. Servo motor; 11. Mounting cover; 12. Movable arc piece; 13. Second guide wheel. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Embodiment 1: The heating process of the pole ear in the lithium battery pole piece is explained to avoid burning the product due to excessive temperature and large temperature difference affecting the heating effect. In addition, the temperature heating process needs to be limited to the narrow side (pole ear) of the lithium battery pole piece. The following technical solution is proposed:

[0028] Reference Figures 1 to 5 In this embodiment, an online pole ear infrared heating device comprises a lithium battery pole piece 1, a gold-plated lampshade 2, and an infrared lamp head 8, wherein the infrared lamp head 8 is installed inside the gold-plated lampshade 2, and the gold-plated lampshade 2 is arranged at the upper and lower sides of the lithium battery pole piece 1, and a cooling component 4 is arranged inside the gold-plated lampshade 2;

[0029] The inner wall of the gold-plated lampshade 2 is symmetrically provided with movable arc pieces 12 along the width direction of the lithium battery pole piece 1, and the inner wall of the gold-plated lampshade 2 and the movable arc piece 12 corresponding to the infrared lamp head 8 is provided with a high-reflection gold-plated concave mirror, and the inner contour line in the cross section of the gold-plated lampshade 2 and the movable arc piece 12 adopts an optical refraction curve angle;

[0030] An infrared temperature measuring probe group 3 is arranged on the left side of the gold-plated lampshade 2, and an installation cover 11 is installed on the right side of the gold-plated lampshade 2. A working guide wheel group corresponding to the movable arc piece 12 is arranged inside the installation cover 11. The gold-plated lampshade 2 is linearly and equidistantly arranged along the width direction of the lithium battery pole piece 1, and the side position of the lithium battery pole pieces 1 at two adjacent positions is set as a narrow side, and the setting position of the gold-plated lampshade 2 corresponds to the setting position of the narrow side.

[0031] Working principle: For the lithium battery pole piece, although a heating process needs to be added, the conventional electric heating method is not suitable because of its high temperature and high efficiency. Therefore, the present invention adopts an infrared heating method for the heating process of the pole ear. The specific structure is mainly composed of an infrared lamp head 8, and the light emitted by the infrared lamp head 8 continuously irradiates the pole ear part to achieve the heating effect;

[0032] Combined with this Figure 4 It is explained that: when the infrared lamp head 8 is powered on and started, the light generated diffuses outward. For this purpose, a high-reflection gold-plated concave mirror is added to the inner wall of the gold-plated lampshade 2. The purpose is to increase the refractive index of the light. However, the key is to further limit the inner contour line in the cross section of the gold-plated lampshade 2 and the movable arc piece 12, specifically through the curvature of the inner wall of the gold-plated lampshade 2. The present invention takes a special optical light path as an example, but the relevant parameters are not explained in the present invention. It should be explained that: Figure 4 As shown, the key is to concentrate the light from the infrared lamp head 8 through a special optical light path and form a wide side that matches the narrow side part. What is different from the conventional method is that when the light emitted by the infrared lamp head 8 diffuses from the gold-plated lampshade 2, it does not present a conical or fan-shaped diffusion method, but is finally diffused in a parallel manner. Its purpose is to concentrate the light source so that the light source is only targeted at the narrow side part of the pole piece, and on the basis of ensuring the temperature, it also avoids the high-temperature light from acting on the rest of the pole piece. Two sets of corresponding light path width adjustment plates can also be added at the lower side of the gold-plated lampshade 2.

[0033] Embodiment 2:

[0034] The heating process in the first embodiment is optimized and improved, specifically, regarding the movable arc piece, the working guide wheel group includes a servo motor 10, a second guide wheel 13, a first gear 5, a second gear 6 and three first guide wheels 7, the center point of one of the first guide wheels 7 is installed at the rotation point position of one of the movable arc pieces 12 corresponding to the gilded lampshade 2, and the other two first guide wheels 7 are rotatably installed on the gilded lampshade 2, and belts 9 are provided on the three first guide wheels 7 and the second guide wheels 13, the first gear 5 and the second guide wheel 13 are fixedly connected, the second gear 6 and the first gear 5 are externally meshed, and the second gear 6 and the rotation point position of another movable arc piece 12 corresponding to the gilded lampshade 2 are fixedly connected, the output shaft of the servo motor 10 is fixedly connected to the center point position of the first guide wheel 7, the diameter of the second gear 6 is larger than the diameter of the first gear 5, and the diameter of the second guide wheel 13 is smaller than the outer diameter of the first guide wheel 7.

[0035] Solution description: The heating process of the lithium battery pole piece is further explained as follows: because the lithium battery pole piece needs to be continuously transmitted at a constant speed or a differential speed, so that the upper and lower surfaces of the lithium battery pole piece can be irradiated and heated by the infrared lamp head 8, the gold-plated lampshade 2 is mainly arranged on the upper and lower sides of the lithium battery pole piece 1, but there are differences in the arrangement gaps of the lithium battery pole piece 1 along its width direction. For this reason, when the fixed mode of the first embodiment is continuously operated, the narrow side area formed by the infrared lamp head 8 is not suitable for the gap between the lithium battery pole pieces 1, for example, there is a problem of being too large / too small, and it is not conducive to the heating process of the pole ear. For this reason, a movable arc piece 12 is added, and again with Figure 5 For example, under the action of the servo motor 10, the movable arc piece 12 is driven to rotate through the first guide wheel 7, the second guide wheel 13 and the belt 9, so that Figure 5 If the movable arc piece 12 at the right position is the main one and the movable arc piece 12 is required to rotate clockwise, then the first gear 5 will also rotate clockwise synchronously, and the second gear 6 will rotate counterclockwise due to the meshing relationship, so that Figure 5 The movable arc piece 12 at the middle left position will rotate counterclockwise, so that the two movable arc pieces 12 rotate in opposite directions;

[0036] However, it needs to be explained again that it is necessary to ensure that the two movable arc pieces 12 rotate at the same speed, which can be understood as rotating at the same angle. Taking assembly issues into consideration, the diameter of the second gear 6 is limited to be larger than the diameter of the first gear 5, and the diameter of the second guide wheel 13 is smaller than the outer diameter of the first guide wheel 7, so that the rotation speed of the second guide wheel 13 is greater than that of the first guide wheel 7. However, due to the meshing relationship between the first gear 5 and the second gear 6, the rotation speed of the second gear 6 will be lower than that of the first gear 5. The key to this is to limit the diameter difference and thus the speed difference, so as to ensure that the two movable arc pieces 12 can rotate at the same speed.

[0037] Embodiment 3: In conjunction with the heating process of embodiment 1, the following cooling method is proposed:

[0038] The setting direction of the infrared temperature measuring probe group 3 and the working guide wheel group matches the transmission direction of the lithium battery electrode 1. The transmission direction of the lithium battery electrode 1 is along the direction from the working guide wheel group to the infrared temperature measuring probe group 3. The setting direction of the infrared lamp head 8 is parallel to the length direction of the lithium battery electrode 1 and the gold-plated lampshade.

[0039] Solution description: The description is given for lithium battery pole pieces of different specifications, wherein the heating temperature of the pole ear needs to meet the process parameters. Therefore, in the present invention, the temperature of the pole ear after heating is sensed in real time by the infrared temperature measuring probe group 3. If the temperature of the pole ear after heating is higher than the process parameters, the infrared heating temperature needs to be urgently reduced; if the temperature of the pole ear after heating is lower than the process parameters, the infrared heating temperature can be increased or the heating time can be extended;

[0040] Mainly for the situation of over-high temperature, the simplest way is to reduce the output power of the infrared lamp head 8, which is essentially to reduce the ambient temperature generated by the light, but this process takes a certain amount of time, so in this embodiment, the cooling component 4 is specifically used as the key, and the cooling component 4 includes a water-cooling pipeline or an air-cooling fin. Specifically, by continuously injecting cold water into the water-cooling pipeline in the cooling component 4, the temperature in the gold-plated lampshade 2 is brought out through the heat exchange principle, and the air-cooling fins can also be used for collaborative heat dissipation, the purpose of which is to reduce the "light source temperature";

[0041] However, it should be noted that: in accordance with the transmission direction of the lithium battery pole piece, the lithium battery pole piece 1 is transmitted from the right side to the left side of the gold-plated lampshade 2, so it can be understood that: the temperature of the lithium battery pole piece close to the left side of the gold-plated lampshade 2 is higher, and when cold water is injected, it flows from the left side to the right side of the cooling component 4. The essence of the cooling component 4 is the gold-plated lampshade. The gold-plated lampshade is a channel. The overall gold-plated lampshade 2 is essentially an integrated structure except for the high-reflective gold-plated concave mirror on its inner wall. The cooling component 4 in the corresponding direction can be drilled inside the gold-plated lampshade 2 by drilling. Figure 3 For example, the connection interfaces at both ends of the cooling assembly 4 are used as water outlet and water inlet, so as to realize the directional flow of cold water and play a role in the heat dissipation process inside the overall structure.

[0042] In summary: the heating process is mainly aimed at the ear position in the lithium battery pole piece. The temperature generated by the infrared lamp head is used as the heat source. The light of the infrared lamp head is directionally refracted through a high-reflective gold-plated concave mirror. The cross-sectional contour line of the inner wall of the gold-plated lampshade is further restricted according to the setting position of the infrared lamp head, so that the light of the infrared lamp head is concentrated and presented as a parallel area. The purpose is to concentrate the light source so that the light source is only targeted at the narrow edge of the pole piece. On the basis of ensuring the temperature, it also avoids the high-temperature light from acting on the rest of the pole piece. On this basis, an active arc piece is further set for the inner wall position of the gold-plated lampshade, and the setting angle of the active arc piece is changed by cooperating with the reverse and same-speed rotation method. The purpose is to shorten or expand the "width" of the light source. In the overall process, the infrared temperature measurement method and the water-cooled heat exchange method are used to actively change the ear heating temperature environment.

[0043] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0045] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An online pole ear infrared heating device, comprising a lithium battery pole piece (1), a gold-plated lampshade (2), and an infrared lamp (8), characterized in that: The infrared lamp (8) is installed inside a gold-plated lampshade (2), the gold-plated lampshade (2) is arranged at upper and lower sides of the lithium battery pole piece (1), and a cooling component (4) is arranged inside the gold-plated lampshade (2); The inner wall of the gold-plated lampshade (2) is symmetrically provided with movable arc pieces (12) along the width direction of the lithium battery pole piece (1), and the inner wall of the gold-plated lampshade (2) and the movable arc piece (12) corresponding to the infrared lamp (8) is provided with a high-reflection gold-plated concave mirror, and the inner contour lines in the cross-sections of the gold-plated lampshade (2) and the movable arc piece (12) adopt an optical reflection curve angle; An infrared temperature measuring probe (3) is arranged on the left side of the gold-plated lampshade (2), and a mounting cover (11) is installed on the right side of the gold-plated lampshade (2), wherein a working guide wheel group corresponding to the movable arc piece (12) is arranged inside the mounting cover (11); The working guide wheel assembly comprises a servo motor (10), a second guide wheel (13), a first gear (5), a second gear (6) and three first guide wheels (7), wherein the center point of one of the first guide wheels (7) is mounted at a rotation point position of one of the movable arc pieces (12) corresponding to the gold-plated lampshade (2), and the other two first guide wheels (7) are rotatably mounted on the gold-plated lampshade (2), and belts (9) are arranged on the three first guide wheels (7) and the second guide wheels (13); The first gear (5) and the second guide wheel (13) are fixedly connected, the second gear (6) and the first gear (5) are externally meshed, and the second gear (6) and another movable arc piece (12) corresponding to the rotation point position of the gold-plated lampshade (2) are fixedly connected, the output shaft of the servo motor (10) and the center point position of the first guide wheel (7) are fixedly connected, the diameter of the second gear (6) is larger than the diameter of the first gear (5), and the diameter of the second guide wheel (13) is smaller than the outer diameter of the first guide wheel (7).

2. The online pole-ear infrared heating device according to claim 1, characterized in that: The gold-plated lampshade (2) is linearly and equidistantly arranged along the width direction of the lithium battery pole piece (1), and the side position where the lithium battery pole pieces (1) at two adjacent positions are close to each other is set as a narrow side, and the setting position of the gold-plated lampshade (2) corresponds to the setting position of the narrow side.

3. The online pole-ear infrared heating device according to claim 1, characterized in that: The arrangement direction of the infrared temperature measuring probe (3) and the working guide wheel group matches the transmission direction of the lithium battery pole piece (1), and the transmission direction of the lithium battery pole piece (1) is along the direction from the working guide wheel group to the infrared temperature measuring probe (3).

4. The online pole-ear infrared heating device according to claim 1, characterized in that: The setting direction of the infrared lamp (8) is parallel to the length direction of the lithium battery pole piece (1), and the cooling component (4) includes a water cooling pipeline or air cooling fins, and the setting direction of the water cooling pipeline matches the setting direction of the infrared lamp (8).

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