Battery raw material heating device

Abstract

The utility model relates to the technical field of batteries, in particular to a battery raw material heating device which comprises a heating box body and a heating assembly, a heating cavity is formed in the heating box body, and battery raw materials needing to be heated are contained in the heating cavity; the heating assembly comprises a temperature equalizing part and a heating part, a gas channel and a plurality of temperature equalizing holes are formed in the temperature equalizing part, the temperature equalizing holes are sequentially formed in the first direction, each temperature equalizing hole communicates with the heating cavity and the gas channel, and the heating part is configured to be capable of conveying heating gas to the gas channel; wherein in the direction opposite to the flowing direction of the heating gas, the hole diameters of the temperature equalizing holes or / and the number of the temperature equalizing holes in unit area are gradually reduced. According to the battery raw material heating device, uniform heating can be realized, the heating efficiency is improved, and the high quality of finished batteries is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a battery raw material heating device. Background Art

[0002] Ethylene carbonate (EC) is one of the raw materials for preparing lithium battery anode slurry. EC is a solid crystal at room temperature, so it needs to be heated to make it liquid before it can be used normally.

[0003] During processing, EC is placed in a container, and the worker puts the container and EC into a heating furnace for heating. Conventional EC containers are cylindrical structures with a relatively high height. When facing a relatively high container, the existing heating furnace cannot ensure that EC can be evenly heated at all locations along the height of the container. There is uneven heating, which affects the heating efficiency and effect, and ultimately affects the battery quality. Utility Model Content

[0004] To this end, the technical problem to be solved by the utility model is to overcome the difficulty of existing heating devices in achieving uniform heating of EC, which affects the quality of the battery, and to provide a battery raw material heating device that can achieve uniform heating, improve heating efficiency, improve heating effect, and ensure the high quality of the finished battery.

[0005] The utility model provides a battery raw material heating device, comprising a heating box, wherein a heating chamber is provided in the heating box, and the battery raw material to be heated is accommodated in the heating chamber; a heating component, wherein the heating component comprises a temperature-averaging component and a heating component, wherein the temperature-averaging component is provided with a gas channel and a plurality of temperature-averaging holes, wherein the plurality of temperature-averaging holes are arranged in sequence along a first direction, each of the temperature-averaging holes is connected to the heating chamber and the gas channel respectively, and the heating component is configured to be able to convey heating gas to the gas channel; wherein, along the opposite direction of the flow direction of the heating gas, the aperture of the temperature-averaging hole or / and the number of the temperature-averaging holes per unit area gradually decreases.

[0006] In one embodiment of the present invention, a dustproof component is further included, wherein the dustproof component is connected to the heating box body, and the dustproof component and the heating box body are enclosed to form a dustproof cavity, and at least part of the heating component is arranged in the dustproof cavity.

[0007] In one embodiment of the utility model, a dustproof grille is further included. The dustproof component is provided with a dustproof opening. The dustproof grille is connected to the dustproof component and closes the dustproof opening.

[0008] In one embodiment of the present invention, a positive pressure member is further included. The positive pressure member is disposed in the dustproof cavity and is used to input positive pressure gas into the dustproof cavity.

[0009] In one embodiment of the present invention, the positive pressure member is configured as an annular structure, and the positive pressure member is arranged around the dustproof cavity. The positive pressure member is provided with a plurality of positive pressure air holes, and each of the positive pressure air holes is arranged toward the dustproof grille.

[0010] In one embodiment of the utility model, it further comprises a temperature detecting member, wherein a plurality of the temperature detecting members are provided, and the plurality of the temperature detecting members are all arranged in the heating chamber, and the temperature detecting member is used to detect the temperature of the heating chamber.

[0011] In one embodiment of the utility model, a weighing component is further included, and the weighing component is used to detect the weight of the battery raw material; the heating chamber has a bearing surface, the bearing surface is perpendicular to the first direction, and the weighing component is arranged on the bearing surface.

[0012] In one embodiment of the utility model, a receiving cavity is formed on the bearing surface along the first direction groove, the weighing component is arranged in the receiving cavity, a wear-resistant layer is provided on the weighing component, and the end surface of the wear-resistant layer is flush with the bearing surface.

[0013] In one embodiment of the present invention, the battery raw material is contained in a container; the battery raw material heating device further comprises an image acquisition component, and the image acquisition component is used to acquire an image of the container.

[0014] In one embodiment of the utility model, it also includes a controller, which is electrically connected to the heating component and the image acquisition component, respectively, and the controller generates a start signal and a stop signal according to the image of the container, and the heating component starts heating according to the start signal and stops heating according to the stop signal; wherein the controller generates the start signal when the container is opened, and generates the stop signal when the container is not opened.

[0015] The above technical solution of the utility model has the following beneficial effects compared with the prior art:

[0016] The battery raw material heating device of the utility model opens corresponding temperature equalizing holes on the temperature equalizing component, so that when heating the battery raw material, each temperature equalizing hole arranged along the first direction can discharge an equal amount of heating gas to the heating chamber, ensuring the overall gas outlet uniformity, so as to ensure that the battery raw material along the first direction in the heating chamber can be evenly heated. The heating efficiency of the battery raw material is effectively improved, the heating effect is improved, and the high quality of the final finished battery is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein:

[0018] Figure 1 This is a partial structural schematic diagram of a battery raw material heating device in a preferred embodiment of the utility model;

[0019] Figure 2 This is a schematic structural diagram of a battery raw material heating device from a first perspective in a preferred embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the dustproof component in the preferred embodiment of the utility model;

[0021] Figure 4 This is a schematic structural diagram of the battery raw material heating device from a second viewing angle in a preferred embodiment of the utility model;

[0022] Figure 5 It is a partial cross-sectional structural schematic diagram of a battery raw material heating device in a preferred embodiment of the utility model;

[0023] Figure 6 It is a schematic diagram of the partial cross-sectional structure of the heating chamber in the preferred embodiment of the utility model.

[0024] Explanation of the reference numerals in the specification: D1, first direction; 10, heating box; 11, heating chamber; 111, bearing surface; 112, accommodating chamber; 12, box door; 20, temperature-averaging component; 21, gas channel; 22, temperature-averaging hole; 30, heating component; 40, air blowing component; 51, dust-proof component; 52, dust-proof chamber; 521, dust-proof opening; 53, dust-proof grille; 54, positive pressure component; 541, positive pressure air hole; 542, air inlet; 60, temperature detection component; 70, weighing component; 71, wear-resistant layer; 80, container; 90, image acquisition component. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0026] Reference Figure 1 and Figure 5 As shown, the utility model discloses a battery raw material heating device, which includes a heating box 10 and a heating component.

[0027] A heating chamber 11 is provided in the heating box 10, and the battery raw material to be heated is accommodated in the heating chamber 11. The heating box 10 provided with the heating chamber 11 provides a heating environment for the battery raw material. Those skilled in the art can set the specific shape and size of the heating chamber 11 according to actual needs to heat different types of battery raw materials; preferably, the battery raw material to be heated is EC, which needs to be heated at a continuous temperature of 90°C. Preferably, a door 12 is provided on the heating box 10 to facilitate opening or closing the heating chamber 11 and performing corresponding operations.

[0028] The heating component is used to achieve heating of the battery raw materials. Specifically, the heating component includes a temperature equalizing component 20 and a heating component 30. A gas channel 21 and a plurality of temperature equalizing holes 22 are provided on the temperature equalizing component 20, and the plurality of temperature equalizing holes 22 are arranged in sequence along the first direction D1, and each temperature equalizing hole 22 is respectively connected to the heating chamber 11 and the gas channel 21. Preferably, the first direction D1 is parallel to the height direction of the container 80 containing the EC. The heating component 30 is configured to be able to deliver heating gas to the gas channel 21. During heating, the heating component 30 heats the gas, and then the heated gas enters the gas channel 21 and then enters the heating chamber 11 through the temperature equalizing hole 22 to achieve heating of the battery raw materials. Those skilled in the art can set the specific heating method of the heating component 30 according to actual needs; preferably, the heating component 30 is set to resistive heating.

[0029] In the opposite direction of the flow direction of the heated gas, the diameter of the temperature-averaging holes 22 and / or the number of the temperature-averaging holes 22 per unit area gradually decreases. It should be noted that the unit area here is smaller than the area of ​​the surface where the temperature-averaging holes 22 are located.

[0030] Take an exhaust member in the prior art as an example, the exhaust member is provided with an air inlet and multiple air outlets, the multiple air outlets are evenly arranged along the gas flow direction, and the aperture size of each air outlet is consistent. When using this exhaust member to transport heated gas, and under the premise of a certain input air pressure, as the gas flows and is continuously discharged from the corresponding air outlet, the resistance to the gas flowing in the exhaust member becomes greater and greater, and the amount of gas discharged from the air outlet will decrease as the distance from the air inlet increases, which leads to uneven air discharge. To this end, by setting this structure, when only one air inlet is provided and the input air pressure is constant, the resistance to the heated gas at different positions of the gas channel 21 is adjusted, so that each temperature-averaging hole 22 arranged along the first direction D1 can discharge an equal amount of heated gas to the heating chamber 11, ensuring the overall uniformity of the air discharge, thereby improving the heating efficiency of the battery raw materials, improving the heating effect, and ensuring the high quality of the final finished battery.

[0031] Those skilled in the art can set a specific way of conveying heated gas according to actual needs; preferably, an air blowing component 40, such as an air blower, is provided on the heating box 10. The air blowing component 40 is provided with a first air inlet, and the first air inlet is connected to the heating chamber 11, so that the gas in the heating chamber 11 can be discharged from the first air inlet to the outside of the heating chamber 11 to achieve circulation. The air duct of the air blowing component 40 is connected to the gas channel 21 of the temperature equalizing component 20, and the heating component 30 is arranged in the air duct to heat the gas discharged by the air blowing component 40. Those skilled in the art can set the specific number, shape and size of the temperature equalizing holes 22 according to actual needs, as long as they can meet the uniform air outlet heating. Preferably, the requirements for the aperture and number of the temperature equalizing holes 22 are met at the same time to ensure the best effect.

[0032] During operation, the battery raw material to be heated is placed in the heating chamber 11. Gas is delivered to the heating chamber 11 through the air blowing component 40. During the delivery process, the gas is heated by the heating component 30. The heated gas enters the gas channel 21 and enters the heating chamber 11 from the corresponding temperature equalizing hole 22 to heat the battery raw material. The gas in the heating chamber 11 can enter the air blowing component 40 again from the first air inlet to achieve cyclic heating.

[0033] The battery material heating device of the utility model, by opening corresponding temperature equalizing holes 22 on the temperature equalizing component 20, enables each temperature equalizing hole 22 arranged along the first direction D1 to discharge an equal amount of heating gas to the heating chamber 11 when heating the battery material, ensuring the overall gas discharge uniformity, so as to ensure that the battery material along the first direction D1 in the heating chamber 11 can be evenly heated. The heating efficiency of the battery material is effectively improved, the heating effect is improved, and the high quality of the final finished battery is guaranteed.

[0034] Reference Figure 3 As shown, the battery raw material heating device described in the utility model, in some embodiments, also includes a dustproof component 51. Considering that the air blowing component 40 and the heating component 30 are usually arranged outside the heating chamber 11, in order to avoid them from being affected by dust and the like, a dustproof component 51 is provided to protect them and achieve a dustproof effect. Specifically, the dustproof component 51 is connected to the heating box body 10, and the dustproof component 51 and the heating box body 10 are enclosed to form a dustproof chamber 52, and at least part of the heating component is arranged in the dustproof chamber 52. Preferably, the air blowing component 40 and the heating component 30 are arranged in the dustproof chamber 52 to avoid sending dust into the heating chamber 11 during air blowing, which effectively ensures the cleanliness of the battery raw materials and the high quality of the final finished battery.

[0035] Further, see Figure 2 and Figure 5As shown, the battery raw material heating device described in the utility model, in some embodiments, further includes a dustproof grille 53. Specifically, a dustproof opening 521 is provided on the dustproof component 51, and the dustproof grille 53 is connected to the dustproof component 51 and closes the dustproof opening 521, so as to filter through the dustproof grille 53 and block external dust.

[0036] Further, as shown in the figures, the battery raw material heating device described in the utility model, in some embodiments, also includes a positive pressure member 54. The positive pressure member 54 is arranged in the dustproof chamber 52, and the positive pressure member 54 is used to input positive pressure gas into the dustproof chamber 52. Preferably, a second air inlet is provided on the air blowing component 40 located in the dustproof chamber 52. By setting this structure, on the one hand, positive pressure gas can enter the air blowing component 40 from the second air inlet to replenish new gas; on the other hand, the dustproof chamber 52 can be made into a positive pressure state, effectively preventing dust from entering the dustproof chamber 52, ensuring the cleanliness of the battery raw materials, and ensuring the high quality of the finished battery. Those skilled in the art can set the specific positive pressure member 54 according to actual needs, and will not repeat them.

[0037] Further, see Figure 3 As shown, in the battery raw material heating device described in the utility model, in some embodiments, the positive pressure member 54 is set as an annular structure, and the positive pressure member 54 is arranged around the dustproof chamber 52. A plurality of positive pressure air holes 541 are provided on the positive pressure member 54, and each positive pressure air hole 541 is arranged toward the dustproof grille 53. By setting this structure, not only can the dustproof chamber 52 be ensured to be in a positive pressure state, but also the effect of preventing dust from accumulating at the dustproof grille 53 can be achieved. Preferably, the positive pressure member 54 is also provided with an air inlet 542, and the air inlet 542 is connected to a device outside the dustproof chamber 52 to input positive pressure gas into the dustproof chamber 52.

[0038] Reference Figure 4 and Figure 5 As shown, the battery raw material heating device described in the utility model, in some embodiments, further includes a temperature detection member 60. Those skilled in the art can set a specific temperature detection member 60 according to actual needs; preferably, it is set as a thermocouple. There are multiple temperature detection members 60, and the multiple temperature detection members 60 are all arranged in the heating chamber 11. The temperature detection member 60 is used to detect the temperature of the heating chamber 11; preferably, there are two in total. By setting this structure, on the one hand, it is possible to accurately detect the temperature in the heating chamber 11 by taking the average value; on the other hand, it is also possible to detect the temperature difference of the temperature detection member 60. When the temperature difference is too large, an alarm feedback can be given to avoid accidents and ensure the safety and reliability of the heating process.

[0039] Reference Figure 2 and Figure 6As shown, the battery raw material heating device described in the utility model, in some embodiments, further includes a weighing component 70, and the weighing component 70 is used to detect the weight of the battery raw material. The heating chamber 11 has a bearing surface 111, and the bearing surface 111 is perpendicular to the first direction D1. The weighing component 70 is arranged on the bearing surface 111 to facilitate the arrangement of the corresponding battery raw materials and the container 80. Those skilled in the art can set a specific weighing component 70 according to actual needs; preferably, the weighing component 70 is set as a high temperature resistant floor scale. By setting the weighing component 70, it is convenient for the staff to obtain the remaining battery raw materials in the heating chamber 11 in real time, avoiding the problem of the staff entering the heating chamber 11 for manual weighing and being scalded, ensuring the safety of the staff and improving the reliability of the operation of the device. Preferably, the weight of the battery raw material detected by the weighing component 70 is displayed on the display to facilitate the staff to refill the material.

[0040] Further, see Figure 6 As shown, in some embodiments of the battery raw material heating device described in the utility model, a receiving cavity 112 is formed on the bearing surface 111 along the groove in the first direction D1, and the weighing component 70 is arranged in the receiving cavity 112. Preferably, the ground is selected as the bearing surface 111. By setting this structure, it is convenient to smoothly push the container 80 containing battery raw materials into the heating cavity 11 for heating, thereby improving the overall operating efficiency. A wear-resistant layer 71 is provided on the weighing component 70, and the end face of the wear-resistant layer 71 is flush with the bearing surface 111. Preferably, the wear-resistant layer 71 is made of non-metallic material, which can avoid metal friction between the weighing component 70 and the container 80, and also prolong the service life of the weighing component 70.

[0041] Reference Figure 4 As shown, in some embodiments of the battery raw material heating device of the present invention, the battery raw material is contained in a container 80; the battery raw material heating device also includes an image acquisition component 90, which is used to acquire an image of the container 80. Those skilled in the art can set a specific image acquisition component 90 according to actual needs; preferably, the image acquisition component 90 is set to a CCD (charge coupled device). Preferably, the image of the container 80 acquired by the image acquisition component 90 includes an image of whether the container 80 is in an open state.

[0042] The battery raw material heating device also includes a controller, which is not shown in the attached drawings. The controller is electrically connected to the heating component and the image acquisition component 90, respectively. The controller generates a start signal and a stop signal according to the image of the container 80, and the heating component starts heating according to the start signal and stops heating according to the stop signal; wherein the controller generates a start signal when the container 80 is opened, and generates a stop signal when the container 80 is not opened. By setting this structure, on the one hand, the battery raw material status of the container 80 can be detected in real time through the image acquisition component 90; on the other hand, it is also convenient to confirm whether the container 80 is in an open state through the image acquisition component 90 before heating, so as to avoid the expansion and explosion of the container 80 during sealed heating, thereby improving the reliability and safety of the heating operation.

[0043] Preferably, the controller is also electrically connected to the weighing component 70. When it is detected during the heating process that the weight of the battery material in the container 80 is insufficient or negative, the controller can also generate a stop signal to ensure that the heating component cannot start heating, so as to avoid heating the empty container 80, thereby saving energy and improving the reliability and safety of the heating operation.

[0044] Working principle:

[0045] After opening the container containing the battery raw materials, place it on the weighing component 70 located in the heating chamber 11, and close the door 12. After the image acquisition component 90 confirms that the container 80 is in the open state, the controller generates a start signal to start the heating component. The air blowing component 40 transports gas to the heating chamber 11. During the transportation process, the gas is heated by the heating component 30. The heated gas enters the gas channel 21 and enters the heating chamber 11 from the corresponding temperature-averaging hole 22 to achieve heating of the battery raw materials. The gas in the heating chamber 11 can enter the air blowing component 40 again from the first air inlet to achieve cyclic heating.

[0046] During the heating process, the positive pressure member 54 inputs positive pressure gas into the dustproof chamber 52 to replenish new gas for the air blowing member 40 and ensure that the dustproof chamber 52 is in a positive pressure state, thereby preventing dust from entering the dustproof chamber 52. The temperature detection member 60 detects the temperature of the heating chamber 11 in real time, and the weighing member 70 and the image acquisition member 90 detect the container 80 and the battery raw material in real time to ensure the reliability and safety of the operation of the heating device.

[0047] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A battery raw material heating device, characterized in that: include: A heating box (10), wherein a heating chamber (11) is provided in the heating box (10), and battery raw materials to be heated are accommodated in the heating chamber (11); A heating component, the heating component comprising a temperature-averaging component (20) and a heating component (30), the temperature-averaging component (20) being provided with a gas channel (21) and a plurality of temperature-averaging holes (22), the plurality of temperature-averaging holes (22) being arranged in sequence along a first direction (D1), each of the temperature-averaging holes (22) being connected to the heating chamber (11) and the gas channel (21), respectively, the heating component (30) being configured to be able to deliver heating gas to the gas channel (21); wherein, in the opposite direction to the flow direction of the heating gas, the aperture of the temperature-averaging hole (22) or / and the number of the temperature-averaging holes (22) per unit area gradually decreases.

2. The battery raw material heating device according to claim 1, characterized in that: It also includes a dustproof component (51), wherein the dustproof component (51) is connected to the heating box (10), and the dustproof component (51) and the heating box (10) are combined to form a dustproof cavity (52), and at least part of the heating component is arranged in the dustproof cavity (52).

3. The battery material heating device according to claim 2, characterized in that: It also comprises a dustproof grille (53), the dustproof component (51) is provided with a dustproof opening (521), and the dustproof grille (53) is connected to the dustproof component (51) and closes the dustproof opening (521).

4. The battery material heating device according to claim 3, characterized in that: It also comprises a positive pressure member (54), wherein the positive pressure member (54) is arranged in the dustproof cavity (52), and the positive pressure member (54) is used to input positive pressure gas into the dustproof cavity (52).

5. The battery material heating device according to claim 4, characterized in that: The positive pressure member (54) is configured as an annular structure and is disposed around the dustproof cavity (52). The positive pressure member (54) is provided with a plurality of positive pressure air holes (541), and each of the positive pressure air holes (541) is disposed toward the dustproof grille (53).

6. The battery material heating device according to claim 1, characterized in that: It also comprises a temperature detection element (60), wherein a plurality of the temperature detection elements (60) are provided, and the plurality of the temperature detection elements (60) are all arranged in the heating chamber (11), and the temperature detection element (60) is used to detect the temperature of the heating chamber (11).

7. The battery material heating device according to claim 1, characterized in that: It also includes a weighing component (70) for detecting the weight of the battery raw material; the heating chamber (11) has a bearing surface (111), the bearing surface (111) is perpendicular to the first direction (D1), and the weighing component (70) is arranged on the bearing surface (111).

8. The battery material heating device according to claim 7, characterized in that: A receiving cavity (112) is formed on the bearing surface (111) along the first direction (D1) groove, the weighing component (70) is arranged in the receiving cavity (112), and a wear-resistant layer (71) is provided on the weighing component (70), and the end surface of the wear-resistant layer (71) is flush with the bearing surface (111).

9. The battery material heating device according to claim 1, characterized in that: The battery raw material is contained in a container (80); The battery raw material heating device further comprises an image acquisition component (90), wherein the image acquisition component (90) is used to acquire an image of the container (80).

10. The battery material heating device according to claim 9, characterized in that: The device also includes a controller, which is electrically connected to the heating component and the image acquisition component (90), respectively, and generates a start signal and a stop signal according to the image of the container (80). The heating component starts heating according to the start signal and stops heating according to the stop signal. The controller generates the start signal when the container (80) is opened, and generates the stop signal when the container (80) is not opened.

Images