Novel anaerobic bin

By designing a novel oxygen-free chamber, utilizing oxygen and humidity detectors and inert gas replacement, the problem of inconvenient operation of portable glove boxes is solved, achieving oxygen-free and humidity control, which is suitable for the preparation of lithium battery electrolytes.

CN224226994UActive Publication Date: 2026-05-12MAIQI CHEM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MAIQI CHEM CO LTD
Filing Date
2025-03-07
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing portable glove boxes require staff to manually check internal humidity and oxygen levels, which is inconvenient to operate and makes it difficult to maintain an oxygen-free environment and suitable humidity conditions.

Method used

A novel oxygen-free chamber was designed, equipped with an oxygen detector, a humidity detector, a vacuum pump, a diaphragm pump, a delivery pipe, and a storage tank. It maintains an oxygen-free state through real-time detection and inert gas replacement, and adjusts the humidity through a water tank, a water pump, and an atomizing nozzle.

Benefits of technology

It enables real-time monitoring of oxygen and humidity inside an oxygen-free chamber, maintaining an oxygen-free environment with humidity not exceeding 13 ppm, and is suitable for the preparation of lithium battery electrolytes and their additives.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a novel oxygen-free bin which comprises a box body, an oxygen detector fixedly installed in the box body, a humidity detector fixedly installed in the box body, a box door rotationally connected to one side of the box body, an observation window fixedly installed in the box door, and two operation gloves fixedly installed in the observation window. A vacuum pump is fixedly installed on one side of the box body, a plurality of supporting plates are fixedly installed in the box body, and a diaphragm pump is arranged in the box body. According to the novel oxygen-free bin provided by the utility model, the oxygen and humidity conditions in the box body are detected in real time through the oxygen detector and the humidity detector, and meanwhile, the oxygen in the box body is exhausted and humidified through the vacuum pump, the diaphragm pump, the conveying pipe, the storage tank, the water tank, the water pump, the conveying pipe, the flow dividing pipe and the atomizing spray head; therefore, the interior of the box body is always controlled in a proper humidity environment, and anaerobic microorganisms can be conveniently cultured.
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Description

Technical Field

[0001] This utility model relates to the field of lithium batteries, and in particular to a novel oxygen-free chamber. Background Technology

[0002] Anaerobic microorganisms are microorganisms that can only live normally in the absence of molecular oxygen. Some of them perform anaerobic respiration, while others rely on fermentation for survival. The requirements of anaerobic bacteria for anaerobic conditions are also different.

[0003] Currently, anaerobic microorganisms are being cultured in culture bags. These bags are typically small and can only hold a small amount of culture, such as a few petri dishes or test tubes. This reduces the efficiency of the culture. Furthermore, anaerobic microorganisms undergo metabolic activities, and many biochemical reactions within their cells require water. As a result, they continuously consume water, causing the humidity inside the culture bag to gradually decrease, which in turn affects the cultivation of anaerobic microorganisms.

[0004] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloys as positive / negative electrode materials and a non-aqueous electrolyte solution. They have very high requirements for performance. With the development of science and technology, lithium-ion batteries have become mainstream. They can be broadly divided into two categories: lithium metal batteries and lithium-ion batteries. Lithium-ion batteries do not contain metallic lithium and are rechargeable.

[0005] Currently, portable glove boxes are used for the preparation of lithium battery electrolytes and additives. However, when using these portable glove boxes, workers need to manually check the internal humidity using testing tools and perform oxygen-free operations via external connection equipment, making them inconvenient to use. Therefore, it is necessary to provide a new type of oxygen-free chamber to solve the above-mentioned technical problems. Utility Model Content

[0006] This invention provides a novel oxygen-free chamber, which solves the problem that current portable glove boxes require staff to manually check the internal humidity with the help of detection tools and perform oxygen-free operation through external connection equipment.

[0007] To solve the above-mentioned technical problems, this utility model provides a novel oxygen-free chamber, comprising:

[0008] The enclosure has an oxygen detector and a humidity detector fixedly installed inside. A door is rotatably connected to one side of the enclosure, and an observation window is fixedly installed inside the door. Two operating gloves are fixedly installed inside the observation window. A vacuum pump is fixedly installed on one side of the enclosure.

[0009] A diaphragm pump is installed inside the housing. Both the output and input ends of the diaphragm pump are fixedly equipped with delivery pipes, and a storage tank is fixedly installed at one end of the delivery pipes.

[0010] Preferably, a plurality of support plates are fixedly installed inside the housing, and mounting blocks are fixedly connected to both sides of the plurality of support plates, and mounting sleeves are slidably connected to the surfaces of the plurality of mounting blocks.

[0011] Preferably, a water tank is fixedly connected to one side of the housing, a water pump is fixedly installed on the top of the water tank, a transport pipe is fixedly installed at both the output and input ends of the water pump, a diversion pipe is fixedly installed at one end of the transport pipe, and multiple atomizing nozzles are fixedly installed on the surface of the diversion pipe.

[0012] Preferably, a storage box is fixedly connected inside the box body, the storage box contains a desiccant, and the storage box has multiple vent holes.

[0013] Preferably, an electric push rod is fixedly installed on one side of the storage box, and a sealing plate is fixedly installed on one end of the electric push rod.

[0014] Preferably, the storage box has two movable slots inside, and each of the two movable slots has a movable block slidably connected inside. One side of each of the two movable blocks is fixedly connected to both sides of the sealing plate.

[0015] Preferably, the observation window has two mounting holes inside, and two fixing sleeves are fixedly connected to one side of the observation window. Each of the two fixing sleeves has a fixing ring inside. The fixing sleeve is a threaded sleeve, and the surface of the fixing ring is provided with a thread that matches the fixing sleeve.

[0016] Compared with related technologies, the novel oxygen-free chamber provided by this utility model has the following beneficial effects: This utility model provides a novel oxygen-free chamber that uses an oxygen detector and a humidity detector to detect the oxygen and humidity inside the chamber in real time. At the same time, through a vacuum pump, a diaphragm pump, a delivery pipe, and a storage tank, oxygen is discharged from the inside of the chamber while inert gas is added to the inside of the chamber, so that the inside of the chamber is in an oxygen-free state while maintaining the relative humidity inside the chamber not higher than 13ppm. This makes it convenient to use in the preparation of lithium battery electrolytes and their additives. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of a first embodiment of a novel oxygen-free chamber provided by this utility model;

[0018] Figure 2 for Figure 1 The diagram shows the internal structure of the box.

[0019] Figure 3 for Figure 1 The diagram shows a cross-sectional view of the box.

[0020] Figure 4 A schematic diagram of the structure of a second embodiment of a novel oxygen-free chamber provided by this utility model;

[0021] Figure 5 for Figure 4 The diagram shows a side view of the box structure.

[0022] Figure 6 for Figure 4 The diagram shows the structure of the storage box.

[0023] Figure 7 for Figure 4 The enlarged schematic diagram of part A shown below;

[0024] Figure 8 for Figure 4 The enlarged schematic diagram of section B is shown below;

[0025] Figure 9 This is a structural schematic diagram of a third embodiment of a novel oxygen-free chamber provided by this utility model.

[0026] Numbered in the diagram: 1. Box body, 2. Box door, 3. Vacuum pump, 4. Diaphragm pump, 41. Delivery pipe, 42. Storage tank, 5. Water tank, 51. Water pump, 52. Transport pipe, 53. Diverter pipe, 54. Atomizing nozzle, 6. Support plate, 61. Mounting block, 62. Mounting sleeve, 7. Observation window, 8. Operating gloves, 9. Storage box, 10. Exhaust port, 11. Desiccant, 12. Electric push rod, 13. Sealing plate, 14. Air outlet, 15. Moving slot, 16. Moving block, 17. Mounting hole, 18. Fixing sleeve, 19. Fixing ring, 20. Oxygen detector, 21. Humidity detector. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] First Embodiment

[0029] Please refer to the following: Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 A schematic diagram of the structure of a first embodiment of a novel oxygen-free chamber provided by this utility model; Figure 2 for Figure 1 The diagram shows the internal structure of the box. Figure 3 for Figure 1The diagram shows a cross-sectional view of the chamber. A novel oxygen-free chamber includes:

[0030] The box 1 has an oxygen detector 20 and a humidity detector 21 fixedly installed inside it. A door 2 is rotatably connected to one side of the box 1. An observation window 7 is fixedly installed inside the door 2. Two operating gloves 8 are fixedly installed inside the observation window 7. A vacuum pump 3 is fixedly installed on one side of the box 1.

[0031] A diaphragm pump 4 is installed inside the housing 1. Both the output and input ends of the diaphragm pump 4 are fixedly equipped with a delivery pipe 41, and a storage tank 42 is fixedly installed at one end of the delivery pipe 41.

[0032] One side of the door 2 is installed on one side of the box body 1 via a hinge, and a sealing ring is fixedly installed on one side to seal the box body 1 after the door 2 is closed. The door 2 and the box body 1 are limited by a door lock.

[0033] The input end of the vacuum pump 3 is connected to the inside of the housing 1 through a connecting pipe, and is used to extract the air from the inside of the housing 1.

[0034] The diaphragm pump 4 is fixedly installed inside the housing 1, and one end of the delivery pipe 41 connected to the output end is fixedly installed inside the housing 1, while one end of the delivery pipe 41 at the input end is fixedly installed inside the storage tank 42. This allows the pump to deliver inert gas or a specific mixed gas to the inside of the housing 1. In conjunction with the vacuum pump 3, the pump removes oxygen from the inside of the housing 1. During the process of extracting oxygen and air from the housing 1, the moisture inside the housing 1 is also extracted along with the oxygen and air. After repeating this process multiple times, the moisture inside the housing 1 is extracted, ensuring that the humidity inside the housing 1 does not exceed 13 ppm, and that the inside of the housing 1 is in an oxygen-free state.

[0035] The inert gas is nitrogen, argon, or helium, which regulates the pressure inside chamber 1 and provides a stable environment for various experimental operations.

[0036] The working principle of the novel oxygen-free chamber provided by this utility model is as follows:

[0037] In use, after placing the storage box for storing anaerobic microorganisms inside the box 1 and closing the box door 2, the oxygen detector 20 and humidity detector 21 are used to monitor the oxygen and humidity inside the box 1 in real time.

[0038] When it is necessary to remove the oxygen from the inside of the chamber 1, the air inside the chamber 1 is extracted by the vacuum pump 3. After the vacuum pump 3 is turned off, the diaphragm pump 4 is turned on. The diaphragm pump 4 extracts the inert gas or a specific mixed gas from the storage tank 42 through the delivery pipe 41 at the input end, and delivers it into the inside of the chamber 1 through the output pipe at the output end. This process is repeated several times until there is no oxygen inside the chamber 1 and the humidity inside the chamber 1 is not higher than 13ppm.

[0039] Compared with related technologies, the novel oxygen-free chamber provided by this utility model has the following beneficial effects:

[0040] This invention provides a novel oxygen-free chamber. An oxygen detector 20 and a humidity detector 21 monitor the oxygen and humidity levels inside the chamber 1 in real time. Simultaneously, a vacuum pump 3, a diaphragm pump 4, a delivery pipe 41, and a storage tank 42 are used to remove oxygen from the chamber 1 while simultaneously introducing inert gas. This ensures that the interior of the chamber 1 is oxygen-free while maintaining a relative humidity of no more than 13 ppm, facilitating its use in the preparation of lithium battery electrolytes and their additives.

[0041] Second Embodiment

[0042] Please refer to the following: Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 Based on the novel anaerobic chamber provided in the first embodiment of this application, the second embodiment of this application proposes another novel anaerobic chamber. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0043] Specifically, the second embodiment of this application provides a novel oxygen-free chamber that differs in that, in the novel oxygen-free chamber, a plurality of support plates 6 are fixedly installed inside the chamber body 1, and mounting blocks 61 are fixedly connected to both sides of the plurality of support plates 6, and mounting sleeves 62 are slidably connected to the surfaces of the plurality of mounting blocks 61.

[0044] One end of each of the multiple mounting sleeves 6 is fixedly connected to one side of the inner wall of the housing 1, and the multiple mounting blocks 61 are T-shaped blocks. The multiple mounting sleeves 6 are adapted to the mounting blocks 61 to facilitate the installation and disassembly of the support plate 6, thereby facilitating the disassembly of the support plate 6.

[0045] By pulling the support plate 6 to one side, the two mounting blocks 61 are moved and separated to one side inside the two mounting sleeves 62, and the support plate 6 can be removed. When the two mounting blocks 61 are inserted into the two mounting sleeves 62, the support plate 6 can be installed.

[0046] A water tank 5 is fixedly connected to one side of the housing 1. A water pump 51 is fixedly installed on the top of the water tank 5. A transport pipe 52 is fixedly installed at both the output and input ends of the water pump 51. A diversion pipe 53 is fixedly installed at one end of the transport pipe 52. Multiple atomizing nozzles 54 are fixedly installed on the surface of the diversion pipe 53.

[0047] One side of the water tank 5 is fixedly connected to one side of the box body 1. One end of the transport pipe 52 installed at the output end of the water pump 51 is fixedly installed inside one end of the diversion pipe 53, while one end of the transport pipe 52 installed at the input end is fixedly installed inside the water tank 5. This is used to draw water out of the water tank 5 and spray it out through multiple atomizing nozzles 54 to humidify the inside of the box body 1.

[0048] A storage box 9 is fixedly connected inside the box body 1. A desiccant 11 is placed inside the storage box 9, and multiple vent holes 10 are opened inside the storage box 9.

[0049] One side of the storage box 9 has a removable mounting plate that is bolted on, which is used to replace the desiccant 11 inside the storage box 9 after the mounting plate is removed.

[0050] An electric push rod 12 is fixedly installed on one side of the storage box 9, and a sealing plate 13 is fixedly installed on one end of the electric push rod 12.

[0051] The storage box 9 has two movable slots 15 inside, and each of the two movable slots 15 has a movable block 16 slidably connected inside. One side of each of the two movable blocks 16 is fixedly connected to both sides of the sealing plate 13.

[0052] By activating the electric push rod 12, the sealing plate 13 is moved to one side, thereby causing the two moving blocks 16 to move to one side inside the two moving slots 15 respectively. After the air outlet 14 inside the sealing plate 13 overlaps with the exhaust port 10, the moisture inside the box 1 is absorbed by the desiccant 11 inside the storage box 9, thus reducing the humidity inside the box 1. When the air outlet 14 inside the sealing plate 13 is staggered with the exhaust port 10, the sealing plate 13 seals the multiple exhaust ports 10.

[0053] The working principle of the novel oxygen-free chamber provided by this utility model is as follows:

[0054] When in use, when the humidity detector 21 inside the housing 1 detects that the humidity is low, the water pump 51 is started, and water is drawn out of the water tank 5 through the transport pipe 52 at the input end and transported into the inside of the diversion pipe 53 through the transport pipe 52 at the output end. Then, it is sprayed out through multiple atomizing nozzles 54 to humidify the inside of the housing 1.

[0055] Compared with related technologies, the novel oxygen-free chamber provided by this utility model has the following beneficial effects:

[0056] This utility model provides a novel anaerobic chamber. Through a water tank 5, a water pump 51, a transport pipe 52, a diversion pipe 53, and an atomizing nozzle 54, the interior of the chamber 1 is humidified while the water mist is blocked by a support plate 6, thereby ensuring that the interior of the chamber 1 is always kept in a suitable humidity environment, which is convenient for the cultivation of anaerobic microorganisms.

[0057] Third Embodiment

[0058] Please refer to the following: Figure 9 Based on the first embodiment of this application, which provides a novel anaerobic chamber, the third embodiment of this application proposes another novel anaerobic chamber. The third embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the third embodiment will not affect the separate implementation of the first embodiment.

[0059] Specifically, the second embodiment of this application provides a novel oxygen-free chamber that differs in that the observation window 7 has two mounting holes 17 inside, and two fixing sleeves 18 are fixedly connected to one side of the observation window 7. Each of the two fixing sleeves 18 has a fixing ring 19 inside. The fixing sleeve 18 is a threaded sleeve, and the surface of the fixing ring 19 is provided with a thread that is compatible with the fixing sleeve 18.

[0060] The fixed ring 19 has a concave handle inside, which is used to facilitate the rotation of the fixed ring 19.

[0061] The working principle of the novel oxygen-free chamber provided by this utility model is as follows:

[0062] When it is necessary to replace the operating glove 8, rotate the retaining ring 19 to one side to move the retaining ring 19 upward inside the retaining sleeve 18 and then remove the operating glove 8 from the inside of the mounting hole 17. After installing the new one inside the mounting hole 17, the retaining ring 19 is installed inside the retaining sleeve 18.

[0063] Compared with related technologies, the novel oxygen-free chamber provided by this utility model has the following beneficial effects:

[0064] This utility model provides a novel oxygen-free chamber, in which the operating gloves 8 are installed and removed by means of a fixing sleeve 18 and a fixing ring 19, thereby facilitating the replacement of the operating gloves 8 after they age.

[0065] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A novel oxygen-free chamber, characterized in that, include: The enclosure has an oxygen detector and a humidity detector fixedly installed inside. A door is rotatably connected to one side of the enclosure, and an observation window is fixedly installed inside the door. Two operating gloves are fixedly installed inside the observation window. A vacuum pump is fixedly installed on one side of the enclosure. A diaphragm pump is installed inside the housing. Both the output and input ends of the diaphragm pump are fixedly equipped with delivery pipes, and a storage tank is fixedly installed at one end of the delivery pipes.

2. The novel oxygen-free chamber according to claim 1, characterized in that, The box body has multiple support plates fixedly installed inside, and mounting blocks are fixedly connected to both sides of the multiple support plates. Mounting sleeves are slidably connected to the surface of the multiple mounting blocks.

3. A novel oxygen-free chamber according to claim 2, characterized in that, A water tank is fixedly connected to one side of the housing, and a water pump is fixedly installed on the top of the water tank. A transport pipe is fixedly installed at both the output and input ends of the water pump. A diversion pipe is fixedly installed at one end of the transport pipe, and multiple atomizing nozzles are fixedly installed on the surface of the diversion pipe.

4. A novel oxygen-free chamber according to claim 3, characterized in that, A storage box is fixedly connected inside the box body. The storage box contains a desiccant and has multiple vent holes.

5. A novel oxygen-free chamber according to claim 4, characterized in that, An electric push rod is fixedly installed on one side of the storage box, and a sealing plate is fixedly installed on one end of the electric push rod.

6. A novel oxygen-free chamber according to claim 5, characterized in that, The storage box has two movable slots inside, and each of the two movable slots has a movable block slidably connected inside. One side of each of the two movable blocks is fixedly connected to both sides of the sealing plate.

7. A novel oxygen-free chamber according to claim 1, characterized in that, The observation window has two mounting holes inside, and two fixing sleeves are fixedly connected to one side of the observation window. Each of the two fixing sleeves has a fixing ring inside. The fixing sleeve is a threaded sleeve, and the surface of the fixing ring is provided with a thread that matches the fixing sleeve.