Dust removal device and hot pressing equipment

Abstract

The utility model provides a dust removal device and hot-pressing equipment. The dust removal device comprises a supporting frame; the at least one working plate is arranged on the supporting frame, the working plates correspond to the hot pressing devices one to one, each working plate comprises a first face and a dust collection channel, and an inlet of each dust collection channel is formed in the corresponding first face; the supporting frame is connected with the moving mechanism, and the moving mechanism is used for driving the supporting frame to move so that the working plate can get in and out of the gap between the upper hot pressing plate and the lower hot pressing plate; each working plate is connected with at least one brush, the brushes are arranged on the first face, and the brushes are used for making contact with the upper hot pressing plate and / or the lower hot pressing plate. According to the dust removal device, the foreign matters on the hot-pressing equipment can be cleared more quickly and conveniently, and a better clearing effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery production technical field especially relates to a dust collector and hot pressing equipment. BACKGROUND

[0002] Lithium battery is widely used in electric vehicle, energy storage system, portable electronic equipment and other fields. However, in the production process of lithium battery, the generation of foreign matter brings great safety hazard to the battery, and when the foreign matter exists in the battery cell in the hot pressing link, it can cause the puncture of the diaphragm, and the positive and negative pole pieces are short-circuited, which has serious safety hazard. At present, the foreign matter on the existing battery cell hot pressing machine hot pressing equipment mainly relies on artificial periodic cleaning. Although there are some dust removal equipment, when the hot pressing equipment is dusted, the foreign matter is usually cleaned by using the dust collection mode, and this mode cannot remove some relatively firm foreign matter, and the cleaning effect of the foreign matter is poor. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in the prior art. Therefore, the utility model provides a dust collector, which has good cleaning effect on the foreign matter attached to the hot pressing plate.

[0004] The utility model further provides a hot pressing equipment.

[0005] According to the dust collector of the first aspect of the utility model, the dust collector is used for dusting the hot pressing device of the hot pressing equipment, the hot pressing equipment includes at least one hot pressing device, the hot pressing device includes the upper hot pressing plate and the lower hot pressing plate which are arranged at intervals, and the dust collector includes: a support frame; a working plate, at least one working plate is arranged on the support frame, the working plate corresponds to the hot pressing device one by one, the working plate includes a first surface, the working plate includes a dust collection channel, and the inlet of the dust collection channel is arranged on the first surface; a moving mechanism, the support frame is connected with the moving mechanism, and the moving mechanism is used for driving the support frame to move, so that the working plate enters and exits the gap between the upper hot pressing plate and the lower hot pressing plate; a brush, each working plate is connected with at least one brush, the brush is arranged on the first surface, and the brush is used for contacting the upper hot pressing plate and / or the lower hot pressing plate.

[0006] According to the dust collector of the first aspect of the utility model, at least has following beneficial effect: when the upper hot pressing plate and the lower hot pressing plate need to be cleaned, the moving mechanism moves the working plate between the upper hot pressing plate and the lower hot pressing plate, the brush separates the foreign matter on the upper hot pressing plate and the lower hot pressing plate, and the brushed foreign matter can be sucked away through the dust collection channel subsequently, so that the dust collector has good cleaning effect on the foreign matter on the upper hot pressing plate and the lower hot pressing plate.

[0007] According to some embodiments of the utility model, the dust removal device further includes a switching mechanism, the working plate includes a first state and a second state, the switching mechanism is used for driving the working plate to rotate relative to the support frame, so that the working plate is switched between the first state and the second state, when the working plate is in the first state, the first surface faces upward, when the working plate is in the second state, the first surface faces downward.

[0008] According to some embodiments of the utility model, the dust removal device further includes a connecting rod, the first end of the connecting rod is connected with the support frame, the second end of the connecting rod is fixedly connected with the working plate, the switching mechanism includes a driving motor, the driving motor is used for driving the connecting rod to rotate relative to the support frame, so that the working plate is switched between the first state and the second state.

[0009] According to some embodiments of the utility model, the connecting rod can slide relative to the support frame along a first direction, or the connecting rod itself is a rod piece that can be telescoped along the first direction, wherein the movement direction of the support frame under the driving of the moving mechanism is the first direction.

[0010] According to some embodiments of the utility model, a groove is formed on the first surface, a part of the brush is arranged in the groove, and another part of the brush is exposed outside the groove.

[0011] According to some embodiments of the utility model, the dust removal device further includes a sealing ring, the first surface is connected with the sealing ring, the sealing ring is arranged outside the opening of the groove, the dust removal device further includes a lifting mechanism, the lifting mechanism is arranged on the support frame, the lifting mechanism can drive the working plate to lift, so that the first surface covers the bottom surface of the upper hot pressing plate or the top surface of the lower hot pressing plate, so that the upper hot pressing plate or the lower hot pressing plate clamps the sealing ring together with the first surface.

[0012] According to some embodiments of the utility model, the working plate further includes a second surface, the first surface and the second surface are opposite to each other, the dust removal device further includes a suction disc, and the second surface is provided with the suction disc.

[0013] According to some embodiments of the utility model, a plurality of working plates are arranged at intervals along a second direction, and the second direction is a vertical direction.

[0014] According to some embodiments of the utility model, the dust removal device further includes a vacuum pump, the outlet of the dust collection channel is communicated with the vacuum pump, and the outlet is located outside the first surface.

[0015] According to the hot pressing equipment of the second aspect of the utility model, the dust removal device is used.

[0016] Additional aspects and advantages of the present application will be given in part in the following description, become apparent from the following description, or be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of a hot-pressing device of the present application;

[0018] Figure 2 is a structural schematic view of a working plate of a dust-removing device of the present application;

[0019] Figure 3 is a first surface structural schematic view of a working plate of a dust-removing device of the present application;

[0020] Figure 4 is a second surface structural schematic view of a working plate of a dust-removing device of the present application;

[0021] Figure 5 is a sectional schematic view of a working plate of a dust-removing device of the present application.

[0022] REFERENCE NUMERALS

[0023] 1, hot-pressing device; 11, upper hot-pressing plate; 12, lower hot-pressing plate; 2, support frame; 3, working plate; 31, first surface; 32, second surface; 33, dust-removing channel; 34, groove; 4, moving mechanism; 5, brush; 6, connecting rod; 61, first end; 62, second end; 7, sealing ring; 8, suction cup. DETAILED DESCRIPTION

[0024] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as limiting the present application.

[0025] In the description of the present application, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, etc. is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0026] In the description of the utility model, more refers to two or more. If there is a description of first, second, it is only used for distinguishing technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0027] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation and connection should be understood broadly, and the person skilled in the art can determine the specific meaning of the above words in the utility model in combination with the specific content of the technical scheme.

[0028] In the battery manufacturing process, the heat pressing treatment of the battery cell is a crucial step. This process not only concerns the physical structure of the battery cell, but also directly affects the performance and lifespan of the battery. Through precise control of the heat pressing technology, the active materials inside the battery cell can be tightly combined with the conductive agent, binder and other materials, forming a solid and uniform whole. This tight combination helps to reduce internal voids, thereby reducing the risk of internal short circuit during charging and discharging of the battery, improving the safety of the battery.

[0029] The high temperature in the heat pressing process can promote the chemical reaction between materials, making the electrode sheet adhere more closely together, thereby increasing the contact area between electrode materials. This increased contact area is crucial for improving the efficiency of the electrochemical reaction of the battery, as it can reduce the resistance of charge transfer, thereby improving the charging and discharging rate of the battery. In addition, heat pressing can also help the battery cell to form accurate shape and size during the manufacturing process, which is crucial for the assembly of the battery pack. Only when each battery cell has a highly consistent size and shape, can the entire battery pack be accurately aligned during assembly, thereby ensuring the overall performance and reliability of the battery pack.

[0030] In summary, heat pressing is not only a simple physical process, but also a key step to ensure the performance, safety and consistency of the battery. Through heat pressing, battery manufacturers can produce more stable, efficient and reliable battery cells to meet the strict requirements of modern electronic devices on battery performance.

[0031] Therefore, in the manufacturing process of the battery, heat pressing equipment is needed to heat press the battery cell. During the heat pressing process of the battery cell, the cleaning of the heat pressing equipment needs to be paid attention to.

[0032] During the heat pressing process of the battery cell, if there are foreign matters, the following hazards may occur:

[0033] Short circuit risk: foreign matters may accidentally cause the positive and negative materials inside the battery cell to come into contact, causing a short circuit. This short circuit not only seriously affects the performance of the battery, such as causing the battery to be unable to charge and discharge normally, but also may cause safety accidents, such as battery overheating or even fire.

[0034] Battery performance degradation: The presence of foreign matter can interfere with the electrochemical reactions inside the battery cell, leading to reduced charging and discharging efficiency. This will cause the battery capacity to decrease, and users will find that the battery endurance time is significantly shortened during use. In addition, the cycle life of the battery will also be affected, and the battery needs to be replaced more frequently, increasing the user's use cost.

[0035] Thermal runaway: Foreign matter may affect the thermal management inside the battery cell, leading to uneven heat distribution. This uneven heat distribution increases the risk of local overheating, which may trigger thermal runaway. Thermal runaway is a serious battery failure that can cause rapid decomposition of internal chemicals and the generation of a large amount of gas, eventually leading to battery damage and even fire and explosion.

[0036] Manufacturing defects: The presence of foreign matter indicates defects in the production process, which not only affects the consistency and reliability of the battery cell, but also increases the difficulty of subsequent quality control. Manufacturing defects may cause unpredictable performance fluctuations in the battery during use, causing inconvenience to users and damaging the reputation of the manufacturer.

[0037] Safety hazards: Foreign matter may produce gas during battery charging and discharging, causing the battery to swell or even rupture. This swelling and rupture not only damages the battery itself, but also may cause damage to surrounding electronic devices. In addition, the rupture of the battery may release harmful substances, posing a threat to the environment and human health.

[0038] Therefore, during the hot pressing process of the battery cell, the cleanliness of the environment and materials must be strictly controlled to ensure the safety and performance of the battery. This not only requires advanced manufacturing technology and equipment, but also requires meticulous production management and quality detection processes. Only in this way can the battery cell perform well under various use conditions and provide users with safe, reliable and efficient energy solutions.

[0039] Reference Figure 1 , Figure 2 and Figure 3The dust removal device in the first embodiment of the utility model is used for dust removal of the hot pressing device 1 of the hot pressing equipment, the hot pressing equipment comprises at least one hot pressing device 1, the hot pressing device 1 comprises the upper hot pressing plate 11 and the lower hot pressing plate 12 arranged at intervals, wherein the electric core needs to be placed between the upper hot pressing plate 11 and the lower hot pressing plate 12 when the electric core is hot pressed, then the upper hot pressing plate 11 and the lower hot pressing plate 12 need to be close to each other, so that the electric core is clamped and hot pressed.The dust removal device comprises a support frame 2, a moving mechanism 4, a work plate 3 and a brush 5, at least one work plate 3 is arranged on the support frame 2, the work plate 3 corresponds to the hot pressing device 1 one by one, the work plate 3 comprises a first surface 31, the work plate 3 comprises a dust suction channel 33, and the inlet of the dust suction channel 33 is arranged on the first surface 31;The support frame 2 is connected with the moving mechanism 4, and the moving mechanism 4 is used for driving the support frame 2 to move, so that the work plate 3 enters or exits the gap between the upper hot pressing plate 11 and the lower hot pressing plate 12;Each work plate 3 is connected with at least one brush 5, the brush 5 is arranged on the first surface 31, and the brush 5 is used for contacting the upper hot pressing plate 11 and / or the lower hot pressing plate 12.In the process of cleaning, the moving mechanism 4 drives the support frame 2 to move, so that the work plate 3 on the support frame 2 enters between the upper hot pressing plate 11 and the lower hot pressing plate 12, wherein when the work plate 3 enters between the upper hot pressing plate 11 and the lower hot pressing plate 12, the first surface 31 of the work plate 3 can first face the lower hot pressing plate 12 or first face the upper hot pressing plate 11.Taking the first surface 31 first facing the lower hot pressing plate 12 as an example, the dust suction channel 33 and the brush 5 on the first surface 31 first clean the lower hot pressing plate 12, and then the upper hot pressing plate 11 is cleaned after the lower hot pressing plate 12 is cleaned.

[0040] According to some embodiments of the utility model, the dust removal device further comprises a switching mechanism, the work plate 3 comprises a first state and a second state, the switching mechanism is used for driving the work plate 3 to rotate relative to the support frame 2, so that the work plate 3 switches between the first state and the second state, when the work plate 3 is in the first state, the first surface 31 faces upward, and when the work plate 3 is in the second state, the first surface 31 faces downward.Wherein when the work plate 3 enters between the upper hot pressing plate 11 and the lower hot pressing plate 12, if the first surface 31 of the work plate 3 faces upward, i.e., faces the upper hot pressing plate 11, the work plate 3 is in the first state and cleans the upper hot pressing plate 11.And when the work plate 3 enters between the upper hot pressing plate 11 and the lower hot pressing plate 12, if the first surface 31 of the work plate 3 faces downward, i.e., faces the lower hot pressing plate 12, the work plate 3 is in the second state and cleans the lower hot pressing plate 12.When the work plate 3 switches between the first state and the second state, there are various ways such as rotating and turning over for switching.

[0041] According to some embodiments of the utility model, the dust removal device further includes a connecting rod 6, the first end 61 of the connecting rod 6 is connected with the support frame 2, and the second end 62 of the connecting rod 6 is fixedly connected with the work plate 3. The switching mechanism includes a driving motor, which is used to drive the connecting rod 6 to rotate relative to the support frame 2, so that the work plate 3 is switched between the first state and the second state. The driving motor is used to drive the rotation of the connecting rod 6 to switch the work plate 3 between the first state and the second state. When the driving motor drives the connecting rod 6 to rotate, the connecting rod 6 drives the work plate 3 to rotate, so that the switching between the first state and the second state is completed. When the distance between the upper hot pressing plate 11 and the lower hot pressing plate 12 is sufficient for the work plate 3 to flip, the work plate 3 can directly flip between the upper hot pressing plate 11 and the lower hot pressing plate 12. When the distance between the upper hot pressing plate 11 and the lower hot pressing plate 12 is small and the work plate 3 cannot directly flip, the moving mechanism 4 needs to drive the support frame 2 to move first, so that the work plate 3 is away from between the upper hot pressing plate 11 and the lower hot pressing plate 12, and then the work plate 3 flips to complete the switching between the first state and the second state.

[0042] According to some embodiments of the utility model, the connecting rod 6 can slide relative to the support frame 2 in the first direction, or the connecting rod 6 itself is a rod member that can extend and retract in the first direction. The movement direction of the support frame 2 under the driving of the moving mechanism 4 is the first direction, that is, the direction in which the work plate 3 moves, and also the extension direction of the connecting rod 6. When the moving mechanism 4 drives the support frame 2 to move, all the work plates 3 on the support frame 2 will move synchronously. In order to make all the work plates 3 accurately enter between the upper hot pressing plate 11 and the lower hot pressing plate 12 for cleaning work, the extension and retraction of the connecting rod 6 are used to adjust the mutual movement between the work plates 3, so that when the plurality of hot pressing devices 1 of the dust removal device clean at the same time, the cleaning position is more accurate.

[0043] According to some embodiments of the utility model, refer to Figure 5 A groove 34 is formed on the first surface 31, a part of the brush 5 is arranged in the groove 34, and another part of the brush 5 is exposed outside the groove 34. In order to avoid the spread of the sundries washed by the brush 5, the groove 34 is arranged to block the sundries. At the same time, the dust suction channel 33 is used to absorb the sundries.

[0044] According to some embodiments of the utility model, refer to Figure 5The dust removal device further comprises a sealing ring 7, the first surface 31 is connected with the sealing ring 7, the sealing ring 7 is arranged outside the opening of the groove 34, and the dust removal device further comprises a lifting mechanism arranged on the support frame 2, the lifting mechanism can drive the working plate 3 to lift, so that the first surface 31 covers the bottom surface of the upper hot pressing plate 11 or the top surface of the lower hot pressing plate 12, and the upper hot pressing plate 11 or the lower hot pressing plate 12 is clamped together with the first surface 31. After the sealing ring 7 and the lifting mechanism are arranged, the working plate 3 can be pressed on the upper hot pressing plate 11 or the lower hot pressing plate 12, so that a sealed cavity is formed when the brush 5 cleans the upper hot pressing plate 11 and the lower hot pressing plate 12.

[0045] According to some embodiments of the present application, referring to Figure 4 The working plate 3 further comprises a second surface 32, the first surface 31 and the second surface 32 are opposite to each other, and the dust removal device further comprises a suction cup 8, and the second surface 32 is provided with the suction cup 8. The suction cup 8 arranged on the second surface 32 can load the hot pressing equipment. That is, after the dust removal device completes dust removal, the battery cell is fixed on the working plate 3 by the suction cup 8, and the battery cell is placed between the upper hot pressing plate 11 and the lower hot pressing plate 12 by the working plate 3 for hot pressing.

[0046] According to some embodiments of the present application, a plurality of working plates 3 are arranged at intervals along a second direction, and the second direction is a vertical direction. When the working plate 3 is arranged along the vertical direction, the hot pressing device 1 on the hot pressing equipment is also arranged at intervals along the vertical direction, so that the whole equipment is more tidy, and the dust removal operation between the hot pressing devices 1 can be avoided from affecting each other to some extent.

[0047] According to some embodiments of the present application, the dust removal device further comprises a vacuum pump, an outlet of the dust collection channel 33 is communicated with the vacuum pump, and the outlet is located outside the first surface 31. The outlet of the dust collection channel 33 is arranged away from the hot pressing equipment, so as to avoid the influence of sundries on the hot pressing device 1.

[0048] According to the hot pressing equipment of the second aspect of the present application, the dust removal device is described in any one of the above embodiments.

[0049] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge range of ordinary skilled in the art without departing from the purpose of the present application.

Claims

1. A dust removal device for removing dust from a hot press device of a hot press apparatus, the hot press apparatus including at least one of the hot press devices, the hot press device including an upper hot press plate and a lower hot press plate disposed apart from each other, characterized in that, The dust removal device comprises: a support frame; a workboard, at least one of which is arranged on the support frame, the workboard corresponding to the hot pressing device one by one, the workboard comprising a first surface, the workboard comprising a dust suction channel, the inlet of the dust suction channel being arranged on the first surface; a moving mechanism, the support frame being connected with the moving mechanism, the moving mechanism being used to drive the support frame to move, so that the workboard enters and exits the gap between the upper hot pressing plate and the lower hot pressing plate; a brush, each of the workboards being connected with at least one of the brushes, the brush being arranged on the first surface, the brush being used to contact the upper hot pressing plate and / or the lower hot pressing plate.

2. A dust extraction device according to claim 1, wherein, The dust removal device further comprises a switching mechanism, the workboard comprising a first state and a second state, the switching mechanism being used to drive the workboard to rotate relative to the support frame, so that the workboard is switched between the first state and the second state, the first surface being upward when the workboard is in the first state, the first surface being downward when the workboard is in the second state.

3. A dust extraction device according to claim 2, wherein, The dust removal device further comprises a connecting rod, the first end of the connecting rod being connected with the support frame, the second end of the connecting rod being fixedly connected with the workboard, the switching mechanism comprising a driving motor, the driving motor being used to drive the connecting rod to rotate relative to the support frame, so that the workboard is switched between the first state and the second state.

4. A dust extraction device according to claim 3, wherein The connecting rod can slide relative to the support frame in a first direction, or the connecting rod itself is a rod member that can be extended and retracted in the first direction. The moving direction of the support frame under the driving of the moving mechanism is the first direction.

5. The dust removal device according to claim 1, characterized in that The first surface is formed with a groove, a part of the brush being arranged in the groove, another part of the brush being exposed outside the groove.

6. A dust extraction device according to claim 5, wherein The dust removal device further comprises a sealing ring, the first surface being connected with the sealing ring, the sealing ring being arranged outside the opening of the groove, the dust removal device further comprising a lifting mechanism, the lifting mechanism being arranged on the support frame, the lifting mechanism being able to drive the workboard to lift, so that the first surface covers the bottom surface of the upper hot pressing plate or the top surface of the lower hot pressing plate, so that the upper hot pressing plate or the lower hot pressing plate clamps the sealing ring together with the first surface.

7. A dust extraction device according to claim 1, wherein The workboard further comprises a second surface, the first surface and the second surface being opposite to each other, the dust removal device further comprising a suction cup, the second surface being provided with the suction cup.

8. A dust extraction device according to claim 1, wherein A plurality of workboards are arranged in a second direction, the second direction being a vertical direction.

9. The dust extraction device of claim 1, wherein, The dust removal device further comprises a vacuum pump, the outlet of the dust suction channel being communicated with the vacuum pump, the outlet being located outside the first surface.

10. A hot-pressing apparatus characterized by comprising: The dust removal device comprises any one of claims 1-9. The dust removal device comprises any one of claims 1-9.

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