A square battery vacuum drying oven

Abstract

The utility model relates to dry equipment technical field discloses a kind of square battery vacuum drying oven, including support foot, the top of support foot is equipped with box, the outer wall of box is equipped with box cover, the four side outer walls of box cover are equipped with hand wheel, the side wall of box is equipped with buffer filter tank, the output end of buffer filter tank is fixedly connected with conveying pipe two, the middle part of conveying pipe two is equipped with valve two, the side of box is equipped with vacuum pump, the top of box is fixedly connected with conveying pipe one, the side, far from the box cover of box, is provided with cleaning assembly, the side, far from the observation window of box cover, is equipped with rubber strip.In the utility model, through the cooperation of conveying pipe one, rubber strip, buffer filter tank and other structures, the protection of the vacuum environment tightness of the box and the protection of the vacuum pump are realized, the external air infiltration is effectively avoided to destroy the vacuum and the impurities into the vacuum pump to cause component wear.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, and in particular to a square battery vacuum drying oven. Background Technology

[0002] Square battery vacuum drying ovens are key equipment in the battery production process and are widely used in square battery manufacturers and research institutions that focus on square battery research and development.

[0003] Existing square battery vacuum drying ovens typically use cold-rolled steel plates with powder coating for rust prevention. The interior is a square stainless steel chamber. Heating relies on stainless steel heating tubes installed on the left, right, and bottom of the inner chamber to achieve uniform temperature rise. Vacuum is achieved by a matching vacuum pump drawing air from the chamber. During operation, the plates or cells of the square battery are first placed into the chamber, the door is closed, and the vacuum pump is started to draw air. Once the set vacuum level is reached, heating is activated to vaporize the moisture inside the components. The water vapor is then continuously drawn out. After drying is complete, nitrogen can be introduced to break the vacuum, preventing the components from coming into contact with air and becoming damp, thus ensuring stable drying results.

[0004] Existing vacuum drying ovens suffer from several problems. First, the vacuum level is unstable; the vacuum pump oil is prone to aging and deterioration after long-term use, and the door seals are susceptible to wear and aging, leading to poor sealing and frequent fluctuations in the vacuum level, which interferes with the normal drying process. Second, energy consumption is poorly controlled; the heating system and insulation structure of traditional equipment are not fully optimized, resulting in significant heat loss and high energy consumption during actual operation, which does not meet current energy-saving and emission-reduction production requirements. Furthermore, cleaning convenience is lacking; the structural design of some corners and component connections inside the oven is not reasonable enough, making it easy for stains to remain, which are difficult to remove completely using conventional cleaning methods. Therefore, a square battery vacuum drying oven is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a square battery vacuum drying oven, which aims to improve the problems of easy fluctuation in vacuum level, inconvenient cleaning, and high maintenance cost of vacuum pump in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A square battery vacuum drying oven includes supporting legs, a box body mounted on top of the supporting legs, a box cover mounted on the outer wall of the box body, a hinge fixedly connected to the side of the box body near the box cover, handwheels mounted on the four outer walls of the box cover, handles and observation windows fixedly connected to the outer wall of the box cover, a buffer filter tank mounted on the side wall of the box body, a second conveying pipe fixedly connected to the output end of the buffer filter tank, a second valve mounted in the middle of the second conveying pipe, a vacuum pump mounted on one side of the box body, a first conveying pipe fixedly connected to the top of the box body, a first valve mounted in the middle of the first conveying pipe, a cleaning component provided on the side of the box body away from the box cover, a rubber strip installed on the side of the box cover away from the observation window, a support frame fixedly connected inside the box body, two fans and two heating rods installed inside the box body, and a partition installed inside the support frame.

[0008] As a further description of the above technical solution:

[0009] The cleaning component includes a motor, which is installed on the side of the housing away from the cover. A support rod is fixedly connected to the output end of the motor. A telescopic rod is installed on the side of the support rod away from the motor. A scraper is fixedly connected to one side of the telescopic rod. A slag guide tube is installed at the bottom of the motor. A slag collection box is installed at the bottom of the slag guide tube.

[0010] As a further description of the above technical solution:

[0011] A pointer pressure gauge is installed on one side of the observation window, and the partitions are evenly distributed inside the support frame.

[0012] As a further description of the above technical solution:

[0013] One end of the delivery pipe is fixedly connected to the input end of the vacuum pump, and the other end of the delivery pipe is connected to the top of the housing.

[0014] As a further description of the above technical solution:

[0015] The shape of the rubber strip is adapted to the edge shape of the box body, and the rubber strip fits tightly against the edge of the box cover.

[0016] As a further description of the above technical solution:

[0017] The support rod is parallel to the slag guide tube, and the scraper is attached to the outer surface of the partition.

[0018] As a further description of the above technical solution:

[0019] One end of the second delivery pipe is fixedly connected to the output end of the buffer filter tank, and the other end of the second delivery pipe is fixedly connected to the bottom of the vacuum pump.

[0020] As a further description of the above technical solution:

[0021] The two fans are located at the bottom and top of the housing, respectively, and their output positions are opposite.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the rubber strip is tightly fitted to the edge of the box by closing the box cover. At the same time, the box is connected to the vacuum pump by the first delivery pipe and the buffer filter tank is connected to the vacuum pump by the second delivery pipe. With the help of valve one to control the air flow between the box and the vacuum pump and valve two to adjust the connection status between the buffer filter tank and the vacuum pump, the buffer filter tank filters impurities in the airflow during vacuuming, thereby ensuring the sealing of the vacuum environment of the box and protecting the vacuum pump. This effectively prevents external air from seeping in and damaging the vacuum and prevents impurities from entering the vacuum pump and causing wear on the components.

[0024] 2. In this utility model, the starting motor drives the support rod to rotate. The telescopic rod on the support rod adjusts its length according to the space of the box so that the scraper is close to the inner wall. The scraper scrapes off the impurities on the inner wall as the support rod rotates. The impurities are guided into the slag collection box through the slag guide square tube. After cleaning, the slag collection box is taken out to process the impurities, thereby realizing the automated cleaning of the inside of the equipment and the centralized collection of impurities, avoiding the pollution of subsequent operations by the residue of impurities. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a square battery vacuum drying oven proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the buffer filter tank structure of a square battery vacuum drying oven proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the fan structure of a square battery vacuum drying oven proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the support frame structure of a square battery vacuum drying oven proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the scraper structure of a square battery vacuum drying oven proposed in this utility model.

[0030] Legend:

[0031] 1. Support feet; 2. Box body; 3. Box cover; 4. Handwheel; 5. Hinge; 6. Pointer pressure gauge; 7. Cleaning components; 71. Motor; 72. Slag guide tube; 73. Slag collection box; 74. Scraper; 75. Telescopic rod; 76. Support rod; 8. Observation window; 9. Handle; 10. Vacuum pump; 11. Conveying pipe one; 12. Valve one; 13. Valve two; 14. Conveying pipe two; 15. Buffer filter tank; 16. Support frame; 17. Fan; 18. Partition; 19. Rubber strip; 20. Heating rod. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 and Figure 2 , Figure 3 This utility model provides an embodiment of a square battery vacuum drying oven, including a support leg 1, a box body 2 mounted on the top of the support leg 1, a box cover 3 mounted on the outer wall of the box body 2, a hinge 5 fixedly connected to the side of the box body 2 near the box cover 3, handwheels 4 mounted on the four outer walls of the box cover 3, handles 9 and observation windows 8 fixedly connected to the outer wall of the box cover 3, a buffer filter tank 15 mounted on the side wall of the box body 2, a second conveying pipe 14 fixedly connected to the output end of the buffer filter tank 15, a second valve 13 mounted in the middle of the second conveying pipe 14, a vacuum pump 10 mounted on one side of the box body 2, a first conveying pipe 11 fixedly connected to the top of the box body 2, a first valve 12 mounted in the middle of the first conveying pipe 11, a cleaning component 7 provided on the side of the box body 2 away from the box cover 3, and a rubber strip 19 mounted on the side of the box cover 3 away from the observation window 8. The box 2 is fixedly connected to a support frame 16. Two fans 17 and two heating rods 20 are installed inside the box 2. A partition 18 is installed inside the support frame 16. A pointer pressure gauge 6 is installed on one side of the observation window 8. The partitions 18 are evenly distributed inside the support frame 16. One end of the first delivery pipe 11 is fixedly connected to the input end of the vacuum pump 10. The other end of the first delivery pipe 11 is connected to the top of the box 2. The shape of the rubber strip 19 is adapted to the edge shape of the box 2. The rubber strip 19 fits tightly with the edge of the box cover 3. One end of the second delivery pipe 14 is fixedly connected to the output end of the buffer filter tank 15. The other end of the second delivery pipe 14 is fixedly connected to the bottom of the vacuum pump 10. The two fans 17 are located at the bottom and top of the box 2 respectively. The output positions of the two fans 17 are opposite.

[0034] Specifically, the lid 3 is closed by the handle 9. At this time, the rubber strip 19 on the lid 3 fits tightly against the edge of the box 2 to ensure a tight seal. Then, the handwheels 4 on all four sides of the lid 3 are rotated to reinforce the connection and prevent leakage. Then, the vacuum pump 10 is started, and the valve 12 in the middle of the first delivery pipe 11 is opened, so that the vacuum pump 10 draws air from the box 2 through the first delivery pipe 11 to reduce it to a vacuum state. At the same time, the valve 13 on the second delivery pipe 14 is opened, so that the buffer filter tank 15 is connected to the bottom of the vacuum pump 10 through the second delivery pipe 14. When the preset vacuum level is reached in the box, the air pressure is monitored in real time by the pointer pressure gauge 6. At this time, the two fans 1 in opposite directions of the blowing direction of the box 2 are started. 7. Two fans 17 create air circulation inside the chamber to ensure uniform temperature and humidity. Utilizing the characteristic of a vacuum environment to lower the boiling point of water, the evaporation of moisture on the surface and inside the square battery is accelerated. The evaporated water vapor is then extracted by the vacuum pump 10 along with the airflow. Meanwhile, the partitions 18 distributed within the support frame 16 separate the batteries into layers. After the drying process is completed, the vacuum pump 10, valve 12, and valve 23 are turned off, achieving efficient and uniform drying of the square battery in a stable vacuum environment. This combined effect significantly improves the water evaporation efficiency during the drying process of the square battery, avoids quality problems caused by uneven drying, and effectively extends the service life of equipment such as the vacuum pump 10.

[0035] Reference Figure 4 and Figure 5 The cleaning component 7 includes a motor 71, which is installed on the side of the housing 2 away from the cover 3. A support rod 76 is fixedly connected to the output end of the motor 71. A telescopic rod 75 is installed on the side of the support rod 76 away from the motor 71. A scraper 74 is fixedly connected to one side of the telescopic rod 75. A slag guide tube 72 is installed at the bottom of the motor 71. A slag collection box 73 is installed at the bottom of the slag guide tube 72. The support rod 76 and the slag guide tube 72 are parallel to each other. The scraper 74 is attached to the outer surface of the partition 18.

[0036] Specifically, by starting the motor 71, the motor 71 drives the support rod 76 to rotate. The telescopic rod 75 at the other end of the support rod 76 automatically adjusts its length according to the internal space, so that the scraper 74 fits tightly against the inner wall. As the support rod 76 continues to rotate, the scraper 74 scrapes off the impurities attached to the inner wall. The scraped-off impurities fall into the slag guide tube 72 under the action of gravity, and are guided by the slag guide tube 72 into the slag collection box 73. After cleaning is completed, the operator takes out the slag collection box 73 to process the impurities. This realizes the automatic scraping, directional collection and convenient cleaning of impurities on the inner wall of the equipment. The combined effect of this method keeps the inside of the equipment clean at all times, avoids residual impurities from contaminating the square batteries to be dried later and affecting the battery quality, and ensures the stability and reliability of the subsequent drying operation.

[0037] Working principle: First, the operator closes the lid 3 using handle 9. At this time, the rubber strip 19 on the lid 3 fits tightly against the edge of the box 2 to ensure a tight seal. Then, the handwheels 4 on all four sides of the lid 3 are rotated to reinforce the connection and prevent leakage. Subsequently, the vacuum pump 10 is started, and the valve 12 in the middle of the first delivery pipe 11 is opened, allowing the vacuum pump 10 to extract air from the box 2 through the first delivery pipe 11 to reduce it to a vacuum state. At the same time, the valve 13 on the second delivery pipe 14 is opened, allowing the buffer filter tank 15 to pass through the second delivery pipe 14 and the bottom of the vacuum pump 10. When the chamber reaches the preset vacuum level, the air pressure is monitored in real time by the pointer pressure gauge 6. At this time, the two fans 17 with opposite blowing directions in the chamber 2 are started. The two fans 17 form an air circulation in the chamber to make the temperature and humidity uniform. By taking advantage of the characteristic of the vacuum environment to lower the boiling point of water, the evaporation of water on the surface and inside of the square battery is accelerated. The evaporated water vapor is extracted by the vacuum pump 10 with the airflow. The partitions 18 distributed in the support frame 16 separate the batteries into layers. After the drying operation is completed, the vacuum pump 10 and valve 12 and valve 2 13 are turned off.

[0038] Secondly, when it is necessary to clean the inside of the equipment, start the motor 71. The motor 71 drives the support rod 76 to rotate. The telescopic rod 75 at the other end of the support rod 76 automatically adjusts its length according to the internal space, so that the scraper 74 fits tightly against the inner wall. As the support rod 76 continues to rotate, the scraper 74 scrapes off the impurities attached to the inner wall. The scraped impurities fall into the slag guide tube 72 under the action of gravity, and are guided by the slag guide tube 72 into the slag collection box 73. After cleaning is completed, the operator takes out the slag collection box 73 to process the impurities.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A square battery vacuum drying oven, comprising support legs (1), characterized in that: A housing (2) is installed on the top of the support leg (1). A lid (3) is installed on the outer wall of the housing (2). A hinge (5) is fixedly connected to the side of the housing (2) near the lid (3). Handwheels (4) are installed on the four outer walls of the lid (3). A handle (9) and an observation window (8) are fixedly connected to the outer wall of the lid (3). A buffer filter tank (15) is installed on the side wall of the housing (2). A second conveying pipe (14) is fixedly connected to the output end of the buffer filter tank (15). A second valve (13) is installed in the middle of the second conveying pipe (14). A vacuum pump (10) is installed on one side of the box (2). A conveying pipe (11) is fixedly connected to the top of the box (2). A valve (12) is installed in the middle of the conveying pipe (11). A cleaning component (7) is provided on the side of the box (2) away from the box cover (3). A rubber strip (19) is installed on the side of the box cover (3) away from the observation window (8). A support frame (16) is fixedly connected inside the box (2). Two fans (17) and two heating rods (20) are installed inside the box (2). A partition (18) is installed inside the support frame (16).

2. The square battery vacuum drying oven according to claim 1, characterized in that: The cleaning component (7) includes a motor (71), which is installed on the side of the housing (2) away from the cover (3). The output end of the motor (71) is fixedly connected to a support rod (76). A telescopic rod (75) is installed on the side of the support rod (76) away from the motor (71). A scraper (74) is fixedly connected to one side of the telescopic rod (75). A slag guide tube (72) is installed at the bottom of the motor (71). A slag collection box (73) is installed at the bottom of the slag guide tube (72).

3. A square battery vacuum drying oven according to claim 1, characterized in that: A pointer pressure gauge (6) is installed on one side of the observation window (8), and the partitions (18) are evenly distributed inside the support frame (16).

4. A square battery vacuum drying oven according to claim 1, characterized in that: One end of the delivery pipe (11) is fixedly connected to the input end of the vacuum pump (10), and the other end of the delivery pipe (11) is connected to the top of the housing (2).

5. A square battery vacuum drying oven according to claim 1, characterized in that: The shape of the rubber strip (19) is adapted to the edge shape of the box body (2), and the rubber strip (19) fits tightly against the edge of the box cover (3).

6. A square battery vacuum drying oven according to claim 2, characterized in that: The support rod (76) is parallel to the slag guide tube (72), and the scraper (74) is attached to the outer surface of the partition (18).

7. A square battery vacuum drying oven according to claim 1, characterized in that: One end of the second delivery pipe (14) is fixedly connected to the output end of the buffer filter tank (15), and the other end of the second delivery pipe (14) is fixedly connected to the bottom of the vacuum pump (10).

8. A square battery vacuum drying oven according to claim 1, characterized in that: The two fans (17) are located at the bottom and top of the housing (2) respectively, and the output positions of the two fans (17) are opposite.

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