Novel polymer lithium ion battery packaging air pressure control device

Abstract

The utility model relates to the technical field of lithium polymer batteries, in particular to a novel polymer lithium ion battery packaging air pressure control device which comprises a polymer lithium ion battery, and a packaging structure is arranged on the surface of the polymer lithium ion battery. And the control assembly comprises a gas tank located on the left side of the packaging structure, and a controller is arranged on the front surface of the gas tank. The polymer lithium ion battery packaging structure has the advantages of being convenient to use and capable of filtering air, air pressure control can be carried out on the polymer lithium ion battery through the control assembly, it is ensured that the air pressure in the packaging structure is kept within a set range, and the process is crucial for improving the safety of the polymer lithium ion battery; and secondly, by filtering the gas entering the inner cavity of the packaging structure, impurities and dust in the gas can be efficiently removed, so that the purity of the gas in the packaging structure is ensured, and the pure gas environment is crucial to protection of the polymer lithium ion battery.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium polymer batteries, in particular to a novel polymer lithium ion battery packaging air pressure control device. Background Art

[0002] Lithium polymer battery, also known as polymer lithium battery, poly lithium battery, is a lithium-ion battery. Lithium polymer battery is usually composed of several identical parallel sub-battery cells to increase the discharge current, or several battery packs in series to increase the available voltage.

[0003] For example, a novel polymer lithium-ion battery packaging air pressure control device disclosed in publication number CN204883408U has the following beneficial effects: an air pressure control design is adopted, including an air source, a packaging device and a delivery pipeline, the packaging device is connected to the air source through the delivery pipeline, the novel polymer lithium-ion battery packaging air pressure control device also includes an air pressure detector and an electromagnetic valve on the delivery pipeline, the air pressure detector is electrically connected to the electromagnetic valve, so that the air source pressure is set during packaging, and when the actual air pressure does not reach or exceeds the predetermined air pressure, the air pressure detector controls the electromagnetic valve to close, so that the packaging device will not package the polymer lithium-ion battery. The invention has the advantages of simple structure, low production cost and good use effect; however, the above patent lacks a structure for filtering the gas source. When the gas is transported, it may be contaminated by particulate matter and corrosive substances on the surface of the equipment, thereby forming impurities or dust. When the gas carrying impurities or dust enters the battery package, it may cause a variety of adverse reactions. First, the impurities or dust may contact the active substances or conductive materials inside the battery, resulting in an increase in the internal resistance of the battery, which may introduce additional resistance into the battery and cause a decrease in battery performance. Secondly, the impurities or dust may cause corrosion of the battery, block the electrode pores or interfere with the electrolyte and other reactions. These adverse reactions may result in a decrease in battery capacity, deterioration in electrochemical performance, and may even lead to premature failure of the battery.

[0004] Therefore, there is an urgent need for a new polymer lithium-ion battery packaging air pressure control device to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a novel polymer lithium-ion battery packaging air pressure control device, which has the advantages of being easy to use and filtering gas, and solves the problems raised by the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel polymer lithium-ion battery packaging air pressure control device, comprising a polymer lithium-ion battery, wherein a packaging structure is arranged on the surface of the polymer lithium-ion battery.

[0007] A control component, the control component includes a gas tank located on the left side of the packaging structure, a controller is arranged on the front surface of the gas tank, one side of the gas tank is connected with a delivery pipe 1, the right end of the delivery pipe 1 is connected with a round pipe through a flange, the right end of the round pipe is connected with a delivery pipe 2 through a flange, the right end of the delivery pipe 2 is connected with the packaging structure, an alarm is arranged on the left side of the top of the surface of the delivery pipe 2, an air pressure sensor is arranged through the right side of the top of the surface of the delivery pipe 2, the bottom of the air pressure sensor extends to the inner cavity of the delivery pipe 2, and an air valve is arranged on the surface of the delivery pipe 2 and between the alarm and the air pressure sensor.

[0008] The filtering structure includes a sleeve located in the inner cavity of a circular tube and slidably connected to the circular tube, the inner cavity of the sleeve is filled with a microporous filter element, an activated carbon filter element and a molecular sieve filter element from left to right, and a partition is fixedly connected between the microporous filter element and the activated carbon filter element and between the activated carbon filter element and the molecular sieve filter element, and both sides of the partition are fixedly connected to the sleeve.

[0009] The positioning structure includes two bolts penetrating one side of a round tube, the bolts are used in conjunction with a sleeve, a placement groove adapted to the bolts is provided on the surface of the round tube, and a threaded hole threadedly connected to the bolts is provided on the inner wall of the placement groove.

[0010] Furthermore, as a preferred embodiment of the present invention, the air pressure sensor and the controller are electrically connected, and the controller is electrically connected to the air valve and the alarm respectively.

[0011] Furthermore, as a preferred embodiment of the present invention, the inner cavity of the circular tube is provided with two slide grooves, and the sleeve is located in the inner cavity of the slide grooves and is slidably connected to the slide grooves.

[0012] Furthermore, as a preferred embodiment of the present invention, a sealing ring is sleeved on the surface of the bolt, and the bottom of the sealing ring is fixedly connected to the placement groove.

[0013] Furthermore, as a preferred embodiment of the present invention, an operating groove is provided on the top of the bolt.

[0014] Furthermore, as a preferred embodiment of the present invention, an elastic sheet is fixedly connected to one side of the inner cavity of the slide groove, and the elastic sheet is used in conjunction with the sleeve.

[0015] Beneficial effects: The technical solution of the present application has the following technical effects: the utility model has the advantages of convenient use and gas filtering. Through the function of the control component, the air pressure of the polymer lithium-ion battery can be controlled to ensure that the air pressure inside the packaging structure is maintained within the set range. This process is crucial to improving the safety of the polymer lithium-ion battery;

[0016] Secondly, by filtering the gas entering the inner cavity of the packaging structure, impurities and dust in the gas can be efficiently removed, thereby ensuring the purity of the gas inside the packaging structure. This pure gas environment is crucial to the protection of polymer lithium-ion batteries. It can avoid the impact of impurities or dust on the battery, thereby improving the safety of the battery and avoiding a series of impacts caused by impurities and dust on the polymer lithium-ion battery.

[0017] Finally, the positioning structure is introduced to make it more convenient to disassemble the filter assembly at a later time. By replacing the filter assembly, the filtering effect can be improved, further ensuring the safety of the polymer lithium-ion battery. In addition, the operation process of the positioning assembly is simple and easy to operate.

[0018] It should be appreciated that all combinations of the foregoing concepts, as well as additional concepts described in greater detail below, may be considered part of the inventive subject matter of the present disclosure, provided such concepts are not mutually inconsistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the partial structure of the packaging structure of the utility model;

[0022] Figure 3 For this utility model Figure 1 A partial enlarged view of middle A;

[0023] Figure 4 This is the main cross-section of the local structure of the circular tube and sleeve of the utility model Figure 1 ;

[0024] Figure 5 This is the main cross-section of the local structure of the circular tube and sleeve of the utility model Figure 2 ;

[0025] Figure 6 For this utility model Figure 4 A partial enlarged view of B in the middle;

[0026] Figure 7 For this utility model Figure 4 A partial enlarged view of C in the middle.

[0027] In the figure, the meaning of each figure mark is as follows: 1. polymer lithium-ion battery; 2. packaging structure; 3. gas tank; 4. delivery pipe 1; 5. round pipe; 6. delivery pipe 2; 7. air pressure sensor; 8. controller; 9. air valve; 10. sleeve; 11. microporous filter element; 12. activated carbon filter element; 13. molecular sieve filter element; 14. partition; 15. bolt; 16. placement groove; 17. threaded hole; 18. slide groove; 19. sealing ring; 20. operation groove; 21. elastic sheet. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. In order to better understand the technical content of the utility model, specific embodiments are cited and explained in conjunction with the drawings as follows. In this disclosure, various aspects of the utility model are described with reference to the drawings, and many illustrative embodiments are shown in the drawings. It should be understood that the various concepts and embodiments introduced above, as well as those described in more detail below, can be implemented in any of many ways. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0029] This technical solution combines the functions of air pressure control, gas filtration and convenient replacement of filter components, aiming to improve the safety of the polymer lithium-ion battery 1. It can maintain a stable air pressure during use and ensure that the gas in the packaging structure 2 is pure and free of impurities, thereby effectively protecting the battery and avoiding the influence of external impurities on the battery.

[0030] As attached Figure 1 To Attachment Figure 7 As shown: This embodiment provides a novel polymer lithium-ion battery packaging air pressure control device, including a polymer lithium-ion battery 1, and a packaging structure 2 is arranged on the surface of the polymer lithium-ion battery 1.

[0031] A control component includes a gas tank 3 located on the left side of the packaging structure 2, a controller 8 is arranged on the front surface of the gas tank 3, one side of the gas tank 3 is connected with a delivery pipe 4, the right end of the delivery pipe 4 is connected with a round pipe 5 through a flange, the right end of the round pipe 5 is connected with a delivery pipe 2 6 through a flange, the right end of the delivery pipe 2 6 is connected with the packaging structure 2, an alarm is arranged on the left side of the top of the surface of the delivery pipe 2 6, an air pressure sensor 7 is penetrated on the right side of the top of the surface of the delivery pipe 2 6, the bottom of the air pressure sensor 7 extends to the inner cavity of the delivery pipe 2 6, an air valve 9 is arranged on the surface of the delivery pipe 2 6 and between the alarm and the air pressure sensor 7, the air pressure sensor 7 and the controller 8 are electrically connected, and the controller 8 is electrically connected to the air valve 9 and the alarm respectively.

[0032] The filtering structure includes a sleeve 10 located in the inner cavity of the circular tube 5 and slidably connected to the circular tube 5. The inner cavity of the sleeve 10 is filled with a microporous filter element 11, an activated carbon filter element 12 and a molecular sieve filter element 13 from left to right. A partition 14 is fixedly connected between the microporous filter element 11 and the activated carbon filter element 12 and between the activated carbon filter element 12 and the molecular sieve filter element 13. Both sides of the partition 14 are fixedly connected to the sleeve 10.

[0033] The positioning structure includes two bolts 15 passing through one side of the circular tube 5. The bolts 15 are used in conjunction with the sleeve 10. The surface of the circular tube 5 is provided with a placement groove 16 adapted to the bolts 15. The inner wall of the placement groove 16 is provided with a threaded hole 17 threadedly connected to the bolts 15.

[0034] Specifically, the inner cavity of the circular tube 5 is provided with two slide grooves 18 , and the sleeve 10 is located in the inner cavity of the slide groove 18 and is slidably connected with the slide groove 18 .

[0035] In this embodiment, by setting the slide groove 18 , the sleeve 10 will slide in the inner cavity of the slide groove 18 when moving, so as to limit and guide the round tube 5 and improve the stability between the sleeve 10 and the round tube 5 .

[0036] Specifically, a sealing ring 19 is sleeved on the surface of the bolt 15 , and the bottom of the sealing ring 19 is fixedly connected to the placement groove 16 .

[0037] In this embodiment, the sealing ring 19 is provided to improve the sealing between the bolt 15 and the round tube 5 and prevent gas from leaking from the inner cavity of the placement groove 16.

[0038] Specifically, an operating groove 20 is formed on the top of the bolt 15 .

[0039] In this embodiment, by providing the operating slot 20 , the user can use the operating slot 20 to drive the bolt 15 to rotate, thereby facilitating the removal or insertion of the bolt 15 from the inner cavity of the threaded hole 17 .

[0040] Specifically, an elastic sheet 21 is fixedly connected to one side of the inner cavity of the slide groove 18 , and the elastic sheet 21 is used in conjunction with the sleeve 10 .

[0041] In this embodiment: through the setting of the elastic sheet 21, in the initial state, after the bolt 15 presses against the sleeve 10, the elastic sheet 21 is in a contracted state. When the bolt 15 leaves the placement groove 16 and the inner cavity of the threaded hole 17, the elastic sheet 21 drives the sleeve 10 to move to one side under the action of the elastic potential energy to help the sleeve 10 to detach from the inner cavity of the slide groove 18.

[0042] The working principle and use process of the utility model are as follows: when in use, the air pressure sensor 7 is used to sense the change of the air pressure inside the packaging structure 2 through the delivery pipe 2 6. When the air pressure inside the packaging structure 2 is higher than the set value, the air pressure sensor 7 transmits the information to the controller 8, and the controller 8 controls the alarm to sound to remind the workers. When the air pressure inside the packaging structure 2 does not reach the set air pressure, the air pressure sensor 7 transmits the information to the controller 8, and the controller 8 controls the air valve 9 to open. At this time, the gas in the inner cavity of the gas tank 3 enters the inner cavity of the packaging structure 2 through the delivery pipe 1 4, the circular tube 5 and the delivery pipe 2 6. The gas will further pass through the microporous filter element 11, the activated carbon filter element 12 and the molecular sieve filter element 13 in sequence. The microporous filter element 11 is used to remove larger solid particles and impurities. The activated carbon filter element 12 removes organic pollutants and odors in the gas through the adsorption of activated carbon. The molecular sieve filter element 13 It is used to remove moisture and other impurities in the gas. This process filters the gas entering the inner cavity of the packaging structure 2 to prevent the contaminated gas from affecting the safety of the polymer lithium-ion battery 1. The gas passes through the partition 14 through the through hole on the partition 14. The shape of the partition 14 is helpful to increase the contact area between the gas and the microporous filter element 11, the activated carbon filter element 12 and the molecular sieve filter element 13, thereby improving the filtering effect. When the air pressure in the inner cavity of the packaging structure 2 reaches a specific value, the controller 8 is used to control the air valve 9 to close. Finally, the user can separate the circular tube 5 from the delivery pipe 1 4 and the delivery pipe 2 6 under the action of the flange, and then turn the bolt 15. The bolt 15 rotates in the inner cavity of the threaded hole 17, and the squeezing force on the sleeve 10 disappears. Under the elastic action of the elastic sheet 21, it is convenient to remove and replace the sleeve 10. This process can improve the filtering effect.

[0043] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0044] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. A person with ordinary knowledge in the technical field to which the present invention belongs may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the claims.

Claims

1. A novel polymer lithium-ion battery packaging air pressure control device, comprising a polymer lithium-ion battery (1), characterized in that: The surface of the polymer lithium-ion battery (1) is provided with a packaging structure (2); A control component, the control component comprises a gas tank (3) located on the left side of the packaging structure (2), a controller (8) is arranged on the front surface of the gas tank (3), one side of the gas tank (3) is connected to a delivery pipe (4), the right end of the delivery pipe (4) is connected to a round pipe (5) through a flange, the right end of the round pipe (5) is connected to a delivery pipe (6) through a flange, the right end of the delivery pipe (6) is connected to the packaging structure (2), an alarm is arranged on the left side of the top of the surface of the delivery pipe (6), an air pressure sensor (7) is arranged through the right side of the top of the surface of the delivery pipe (6), the bottom of the air pressure sensor (7) extends to the inner cavity of the delivery pipe (6), and an air valve (9) is arranged on the surface of the delivery pipe (6) and between the alarm and the air pressure sensor (7); A filtering structure, the filtering structure comprising a sleeve (10) located in the inner cavity of a circular tube (5) and slidably connected to the circular tube (5), the inner cavity of the sleeve (10) being filled with a microporous filter element (11), an activated carbon filter element (12) and a molecular sieve filter element (13) in sequence from left to right, a partition (14) being fixedly connected between the microporous filter element (11) and the activated carbon filter element (12) and between the activated carbon filter element (12) and the molecular sieve filter element (13), and both sides of the partition (14) being fixedly connected to the sleeve (10); The positioning structure comprises two bolts (15) penetrating one side of a circular tube (5), the bolts (15) being used in conjunction with a sleeve (10), a placement groove (16) matching the bolts (15) being provided on the surface of the circular tube (5), and a threaded hole (17) threadedly connected to the bolts (15) being provided on the inner wall of the placement groove (16).

2. The novel polymer lithium-ion battery packaging air pressure control device according to claim 1, characterized in that: The air pressure sensor (7) and the controller (8) are electrically connected, and the controller (8) is electrically connected to the air valve (9) and the alarm.

3. The novel polymer lithium-ion battery packaging air pressure control device according to claim 1, characterized in that: The inner cavity of the circular tube (5) is provided with two slide grooves (18), and the sleeve (10) is located in the inner cavity of the slide groove (18) and is slidably connected to the slide groove (18).

4. The novel polymer lithium-ion battery packaging air pressure control device according to claim 1, characterized in that: A sealing ring (19) is sleeved on the surface of the bolt (15), and the bottom of the sealing ring (19) is fixedly connected to the placement groove (16).

5. The novel polymer lithium-ion battery packaging air pressure control device according to claim 1, characterized in that: An operating groove (20) is formed on the top of the bolt (15).

6. A novel polymer lithium-ion battery packaging air pressure control device according to claim 3, characterized in that: An elastic sheet (21) is fixedly connected to one side of the inner cavity of the slide groove (18), and the elastic sheet (21) is used in conjunction with the sleeve (10).

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