Temperature compensated roller shaft and solid state battery dry process roller apparatus

Abstract

The utility model relates to the technical field of roll heating, and particularly relates to a temperature compensation roll shaft and solid-state battery dry method roll equipment. A temperature compensation roll shaft, comprising: a roll body; a heating assembly, comprising a first heating piece and a second heating piece, one end of the roll body is connected with the first heating piece, the other end of the roll body is connected with the second heating piece; a temperature control assembly, comprising a temperature sensor, the temperature sensor is arranged in the roll body, the temperature sensor senses the temperature of the roll body, the first heating piece and / or the second heating piece heat the roll body according to the measured value of the temperature sensor. The utility model provides a temperature compensation roll shaft and solid-state battery dry method roll equipment to solve the problem that the effective length of the roll surface uniform section is short due to the limitation of the roll body structure when the heating roll is used, the temperature attenuation is greater when the position is closer to the two end faces, which leads to the decline of the roll surface temperature uniform consistency, and the utilization rate of the actual roll surface is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of roller heating technology, specifically to a temperature-compensated roller and a dry-process roller device for solid-state batteries. Background Technology

[0002] Currently, the heating rollers commonly used in lithium battery electrode manufacturing and solid-state dry roll forming are of the following two types: electromagnetic heating rollers and heat transfer oil heating rollers. The electromagnetic heating roller includes a hollow cylindrical outer metal roller. The outer metal roller is supported on a mandrel through end caps at both ends. A coil frame is fixedly sleeved on a section of the mandrel inside the outer metal roller. Several turns of heating induction coils are wound on the coil frame. The load lead of each heating induction coil is led out of the outer metal roller and connected to a frequency converter. The frequency converter is connected to a PLC control and a human-machine interface. The metal roller is equipped with multiple temperature sensors.

[0003] The oil-heated roller consists of an oil station and an oil pipeline. The oil station is equipped with heating pipes. Hot oil at a certain temperature is introduced into a specific flow channel inside the roller through pressure. The two oil paths, one inlet and one outlet, realize the continuous circulation and heating of the roller surface.

[0004] The heating rollers mentioned above all suffer from the following problems during use: due to the limitations of the roller body structure, the effective length of the uniform temperature section on the roller surface is relatively short, and the temperature attenuation is greater closer to the two end faces, resulting in a decrease in the uniformity of the roller surface temperature and a significant reduction in the actual utilization rate of the roller surface. Utility Model Content

[0005] In view of this, the present invention provides a temperature compensation roller shaft and a solid-state battery dry process roller device to solve the problem that heating rollers have the following problems in use: due to the limitation of the roller body structure, the effective length of the roller surface temperature uniform section is too short, and the temperature attenuation is greater closer to the two end faces, resulting in a decrease in the uniformity of the roller surface temperature and a significant reduction in the actual utilization rate of the roller surface.

[0006] In a first aspect, this utility model provides a temperature compensation roller shaft, comprising:

[0007] Roller body;

[0008] A heating assembly, comprising a first heating element and a second heating element, wherein a first end of the roller body is connected to the first heating element and a second end of the roller body is connected to the second heating element;

[0009] A temperature control component, comprising a temperature sensor disposed within the roller body, the temperature sensor sensing the temperature of the roller body, and a first heating element and / or a second heating element heating the roller body according to the measured value of the temperature sensor.

[0010] By setting a first heating element at the first end of the roller body and a second heating element at the second end, the two ends of the roller body are heated respectively, so that the temperature near the end faces of the two ends of the roller body does not decrease or decreases only slightly, thus ensuring the consistency of the temperature of the end faces of the roller body with the surface of the roller body and effectively improving the actual utilization rate of the roller surface.

[0011] In one optional embodiment, the heating assembly further includes a first insulation plate and a second insulation plate, a first end of the roller is fixedly connected to the first insulation plate, a second end of the roller is fixedly connected to the second insulation plate, a first heating element is disposed between the first insulation plate and the first end, and a second heating element is disposed between the second insulation plate and the second end.

[0012] In one optional embodiment, the device further includes an electromagnetic heating mandrel, wherein the roller body has a hollow through hole, the electromagnetic heating mandrel is disposed through the hollow through hole, and a heating coil is disposed inside the electromagnetic heating mandrel.

[0013] In one optional embodiment, the roller body is provided with a heating channel, and a heating medium flows in the heating channel.

[0014] In one alternative embodiment, a receiving space is provided at the first end and / or the second end of the roller, and a portion of the temperature sensor is disposed within the receiving space.

[0015] In one optional embodiment, the inner sidewall of the roller body is provided with a wiring channel, the first heating element is connected to a first connecting line, the second heating element is connected to a second connecting line, and the temperature sensor is connected to a third connecting line. The first connecting line, the second connecting line, and the third connecting line are all located within the wiring channel.

[0016] In one optional embodiment, the cross-section of the wiring channel is U-shaped, with the end of the first connecting line away from the first heating element, the end of the second connecting line away from the second heating element, and the end of the third connecting line away from the temperature sensor extending out of the first end along the wiring channel.

[0017] In an optional embodiment, an electric slip ring is further included, which is disposed at the end of the electromagnetic heating mandrel, and the first connecting line, the second connecting line and the third connecting line extending outside the first end are all converged within the electric slip ring.

[0018] In one optional implementation, the temperature control component further includes a controller, which is connected to the first connection line, the second connection line and the third connection line respectively.

[0019] Secondly, this utility model also provides a solid-state battery dry-process roller device, including the temperature-compensated roller shaft mentioned above.

[0020] The temperature supplement roller provided by this utility model has the following advantages: (1) By setting the first heating element and the second heating element at both ends of the roller body respectively, the two ends of the roller body are heated respectively, ensuring that the temperature near the end face of the two ends of the roller body does not decrease or decreases little, ensuring the consistency of the roller surface temperature, and effectively improving the actual utilization rate of the roller surface; (2) By controlling the electromagnetic heating core shaft, the first heating element and the second heating element respectively, by adjusting their respective temperature heating rates, the problem of poor roller surface temperature uniformity caused by the sudden drop in roller end face temperature is eliminated; (3) When the temperature attenuation of the two end faces of the roller body decreases, the utilization rate of the roller surface width can be greatly improved, ensuring the uniformity of temperature, thereby reducing the size of the roller body, indirectly compressing the size of the core equipment components and saving factory space; (4) After the wiring of the heating elements and temperature sensors at both ends is gathered into the wiring channel, they all come out from one end and are connected to the corresponding wiring position on the electric slip ring, ensuring that the wiring harness can rotate with the roller surface, making the overall structure layout simpler. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the temperature compensation roller according to an embodiment of the present invention;

[0023] Figure 2 This is a front view of the temperature compensation roller according to an embodiment of the present invention;

[0024] Figure 3 for Figure 2 Sectional view of AA;

[0025] Figure 4 for Figure 2 A magnified view of part B in the diagram;

[0026] Figure 5 for Figure 2 The left view.

[0027] Explanation of reference numerals in the attached drawings: 1. Roller body; 101. Cable routing channel; 102. Accommodation space; 103. First end; 104. Second end; 105. Roller body; 2. Heating assembly; 201. First heating element; 202. First insulation plate; 203. Second heating element; 204. Second insulation plate; 205. Fastener; 3. Electromagnetic heating mandrel; 4. Electric slip ring; 5. Temperature sensor. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] The following is combined Figures 1 to 5 The following describes embodiments of the present invention.

[0030] According to an embodiment of the present invention, a temperature-compensating roller shaft is provided, comprising: a roller body 1; a heating assembly 2, including a first heating element 201 and a second heating element 203, wherein a first end 103 of the roller body 1 is connected to the first heating element 201, and a second end 104 of the roller body 1 is connected to the second heating element 203; and a temperature control assembly, including a temperature sensor 5, wherein the temperature sensor 5 is disposed inside the roller body 1, the temperature sensor 5 is used to sense the temperature of the roller body 1, and the first heating element 201 and / or the second heating element 203 are used to heat the roller body 1 according to the measured value of the temperature sensor 5.

[0031] By setting a first heating element 201 at the first end 103 and a second heating element 203 at the second end 104 of the roller body 1, the end faces of both ends of the roller body 1 are heated respectively, so that the temperature near the end faces of both ends of the roller body 1 does not decrease or decreases only slightly, thus ensuring the consistency of the temperature between the end faces of both ends of the roller body 1 and the roller surface, and effectively improving the actual utilization rate of the roller surface.

[0032] In one embodiment, such as Figure 2 , Figure 3 , Figure 4As shown, the heating assembly 2 also includes a first insulation plate 202 and a second insulation plate 204. The first end 103 of the roller body 1 is fixedly connected to the first insulation plate 202, and the second end 104 of the roller body 1 is fixedly connected to the second insulation plate 204. The first heating element 201 is disposed between the first insulation plate 202 and the end of the roller body 1, and the second heating element 203 is disposed between the second insulation plate 204 and the end of the roller body 1. The first insulation plate 202 is used to transfer the heat generated by the first heating element 201 to the end face of the first end 103 of the roller body 1, preventing heat from flowing out in other directions. Similarly, the second insulation plate 204 is used to transfer the heat generated by the second heating element 203 to the end face of the second end 104 of the roller body 1, preventing heat from flowing out in other directions. It should be noted that the first insulation plate 202 and the second insulation plate 204 are located at both ends of the roller body 1, and are fixedly connected to the roller body 1 by fasteners 205. Specifically, the fastener 205 is a bolt, and the first heating element 201 and the second heating element 203 have the same dimensions.

[0033] In one embodiment, such as Figure 1 , Figure 2 , Figure 3 As shown, it also includes an electromagnetic heating mandrel 3. The roller body 1 is provided with a hollow through hole. The electromagnetic heating mandrel 3 is installed through the hollow through hole. An electromagnetic coil is provided inside the electromagnetic heating mandrel 3 so that the electromagnetic coil heats the roller body 1 after being energized.

[0034] In one embodiment, such as Figure 1 , Figure 2 , Figure 3 As shown, the first 103 end of the roller body 1 is provided with a receiving space 102. A part of the temperature sensor 5 is located in the receiving space 102. The receiving space 102 is used to accommodate the temperature sensor 5, so that the temperature measuring end of the temperature sensor 5 is embedded in the roller body 1 to measure the temperature of the roller body 1, thereby saving the space occupied by the temperature sensor 5.

[0035] In one embodiment, such as Figure 2 , Figure 3 , Figure 4As shown, the inner wall of the roller body 1 is provided with a wiring channel 101. The first heating element 201 is connected to a first connecting line, the second heating element 203 is connected to a second connecting line, and the temperature sensor 5 is connected to a third connecting line. The first, second, and third connecting lines are respectively located within the wiring channel 101. By setting the wiring channel 101, the first, second, and third connecting lines are located within the wiring channel 101, ensuring the smooth lead-out of the lines. It should be noted that this application does not limit the material of the first heating element 201 and the second heating element 203. The first heating element 201 and the second heating element 203 can be graphene heating film, PI (polyimide) heating sheet, silicone heating sheet, etc., as long as they have heating function.

[0036] In one embodiment, such as Figure 2 , Figure 3 , Figure 4 As shown, the cross-section of the wiring channel 101 is U-shaped. The end of the first connecting line away from the first heating element 201, the end of the second connecting line away from the second heating element 203, and the end of the third connecting line away from the temperature sensor 5 extend out of the roller body 1 along the wiring channel 101 to facilitate the connection of the connecting lines with other devices.

[0037] In one embodiment, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, it also includes an electric slip ring 4, which is located at the end of the electromagnetic heating mandrel 3. The first connecting line, the second connecting line, and the third connecting line, which extend out of the first end 103, all converge within the electric slip ring 4, thus achieving the convergence of the three connecting lines. It should be noted that the electric slip ring 4 is fixedly connected to the electromagnetic heating mandrel 3.

[0038] In one embodiment, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the temperature control assembly also includes a controller, which is connected to the electromagnetic heating mandrel 3, the first connecting line, the second connecting line, and the third connecting line. The controller receives the measurement values ​​from the temperature sensor 5 and issues commands to the first heating element 201 and the second heating element 203 to heat both ends of the roller body 1. The electromagnetic heating mandrel 3 heats the roller body 1 to ensure that the roller surface and both ends of the roller body 1 have the same temperature. It should be noted that although the temperature sensor 5 measures the temperature near the first end 103, the actual temperature at the first end 103 can be determined by calibrating the temperature at the measurement location and the temperature at the first end 103 of the roller body 1 beforehand by the controller.

[0039] According to an embodiment of the present invention, another aspect is provided: a solid-state battery dry-process roller device, including the temperature-compensated roller shaft described above.

[0040] In the specific implementation process, the first heating element 201 and the second heating element 203 heat both ends of the roller body 1 respectively. As the heating time increases, the temperature of the roller body 1 gradually rises. The temperature sensor 5 measures the temperature of the roller body 1 in real time. The controller controls the heating rate of the first heating element 201 and the second heating element 203 respectively. At the same time, the electromagnetic heating mandrel 3 heats the roller body 1, thereby ensuring the consistency of the roller surface and the temperature of both ends of the roller body 1. If the temperature sensor 5 finds that the temperature of a certain end face is lower than the roller surface temperature during measurement, the heating element at that end face will accelerate the heating rate to ensure the consistency of the end face temperature with the roller surface temperature.

[0041] As an alternative implementation, the first end 103 and the second end 104 of the roller body 1 may also be provided with a receiving space 102, and each receiving space 102 may contain a temperature sensor 5, so as to further improve the accuracy of temperature control and measurement.

[0042] As an alternative implementation, the second end 104 of the roller body 1 may also be provided with a receiving space 102, which respectively accommodates a temperature sensor 5.

[0043] As an alternative implementation, the electromagnetic heating mandrel 3 may also be an electromagnetic heating mandrel 3.

[0044] As an alternative implementation, the roller body 105 of the roller body 1 may also be provided with a heating channel, in which a heating medium flows. Specifically, the heating medium is hot oil, that is, hot oil at a certain temperature is introduced into a specific heating channel inside the roller body 105 by pressure to achieve heating of the roller body 1.

[0045] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A temperature compensation roller shaft, characterized in that, include: Roller body (1); Heating assembly (2), the heating assembly (2) includes a first heating element (201) and a second heating element (203), the first end (103) of the roller body (1) is connected to the first heating element (201), and the second end (104) of the roller body (1) is connected to the second heating element (203); A temperature control component, the temperature control component including a temperature sensor (5) disposed inside the roller body (1), the temperature sensor (5) to sense the temperature of the roller body (1), and the first heating element (201) and / or the second heating element (203) to heat the roller body (1) according to the measured value of the temperature sensor (5).

2. The temperature compensation roller shaft according to claim 1, characterized in that, The heating assembly (2) further includes a first insulation plate (202) and a second insulation plate (204). The first end (103) of the roller body (1) is fixedly connected to the first insulation plate (202), and the second end (104) of the roller body (1) is fixedly connected to the second insulation plate (204). The first heating element (201) is disposed between the first insulation plate (202) and the first end (103), and the second heating element (203) is disposed between the second insulation plate (204) and the second end (104).

3. The temperature compensation roller shaft according to claim 2, characterized in that, It also includes an electromagnetic heating mandrel (3), the roller body (1) is provided with a hollow through hole, the electromagnetic heating mandrel (3) is provided through the hollow through hole, and an electromagnetic coil is provided inside the electromagnetic heating mandrel (3).

4. The temperature compensation roller shaft according to claim 2, characterized in that, The roller body (1) has a heating channel inside the roller body (105), and a heating medium flows in the heating channel.

5. The temperature compensation roller shaft according to claim 3, characterized in that, The first end (103) and / or the second end (104) of the roller body (1) are provided with a receiving space (102), and a part of the temperature sensor (5) is disposed in the receiving space (102).

6. The temperature compensation roller shaft according to claim 5, characterized in that, The inner wall of the roller (1) is provided with a wiring channel (101), the first heating element (201) is connected to a first connecting line, the second heating element (203) is connected to a second connecting line, and the temperature sensor (5) is connected to a third connecting line. The first connecting line, the second connecting line and the third connecting line are all located in the wiring channel (101).

7. The temperature compensation roller shaft according to claim 6, characterized in that, The cross-section of the wiring channel (101) is "U" shaped. The end of the first connecting line away from the first heating element (201), the end of the second connecting line away from the second heating element (203), and the end of the third connecting line away from the temperature sensor (5) extend out of the first end (103) along the wiring channel (101).

8. The temperature compensation roller shaft according to claim 7, characterized in that, It also includes an electric slip ring (4), which is located at the end of the electromagnetic heating mandrel (3). The first connecting line, the second connecting line and the third connecting line that extend out of the first end (103) are all gathered in the electric slip ring (4).

9. The temperature compensation roller shaft according to claim 8, characterized in that, The temperature control component also includes a controller, which is connected to the first connection line, the second connection line and the third connection line respectively.

10. A dry-process roller mill for solid-state batteries, characterized in that, Includes the temperature compensation roller shaft as described in any one of claims 1-9.

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