Electrolyte preparation mixing device for electrochemical battery

Abstract

The utility model discloses an electrolyte preparation mixing device for an electrochemical battery, which comprises a main body, a mixing cavity is arranged in the main body and is used for mixing electrolyte preparation raw materials, the electrolyte preparation mixing device further comprises a first transmission cavity which is arranged above the mixing cavity, first stirring shafts are arranged on two sides in the first transmission cavity, and second stirring shafts are arranged on two sides in the first transmission cavity. One first stirring shaft is rotationally connected with the first transmission cavity, second transmission cavities are formed in the two sides of the lower portion of the mixing cavity, one ends of the first stirring shafts penetrate through the mixing cavity and extend into the second transmission cavities, and the first stirring shafts are rotationally matched with the second transmission cavities. According to the electrolyte preparing and mixing device for the electrochemical battery, peculiar smell can be sucked into the purification cavity for adsorption and purification, the working environment can be cleaner, interference and discomfort of the peculiar smell to operators are reduced, and meanwhile the electrolyte mixing effect and efficiency can be effectively improved through joint stirring of the stirring blades and the stirring rods.

Description

Technical Field

[0001] The utility model relates to the technical field of electrolyte preparation, in particular to an electrolyte preparation mixing device for electrochemical cells. Background Art

[0002] An electrochemical cell is a device that can achieve mutual conversion between chemical energy and electrical energy. It is based on electrochemical principles and achieves energy conversion through electrochemical reactions. Electrochemical cells are divided into two types: primary cells and electrolytic cells. Primary cells can spontaneously convert chemical energy into electrical energy, while electrolytic cells require an external power supply to provide electrical energy to enable chemical reactions to occur inside the battery. In the preparation process of electrochemical cells, the electrolyte is a crucial component. The electrolyte is the conductive medium in the battery and is usually composed of solvents, lithium salts and additives. A mixing device is used when preparing the electrolyte. The mixing device can ensure that the various components in the electrolyte are fully mixed to avoid local concentrations that are too high or too low, thereby improving the stability and uniformity of the electrolyte.

[0003] The existing Chinese patent with announcement number CN210021850U discloses a mixing device for producing vanadium battery electrolyte, including a box body, the upper surface of the box body is fixedly connected to the lower surface of the support plate, the upper surface of the support plate is fixedly connected to the lower surface of the driving device, the front side of the driving device is clamped with a first bearing, the inner surface of the first bearing is sleeved with a rotating shaft, the front side of the rotating shaft is fixedly connected to the back side of a connecting rod, the connecting rod passes through a through hole, and the through hole is opened on the upper surface of the box body.

[0004] Although the above scheme can mix the raw materials for preparing the electrolyte, some electrolyte salts and additives may have specific odors, so odor may be generated during the mixing process. The device lacks odor treatment function and has poor practicality. In addition, the mixing device only uses a single axis for stirring, and the stirring effect and efficiency are not ideal, which affects the actual mixing effect. Therefore, it does not meet the existing needs. In this regard, we propose a mixing device for preparing electrolyte for electrochemical cells. Utility Model Content

[0005] The utility model aims to provide an electrolyte preparation mixing device for electrochemical cells to solve the problems that the mixing device proposed in the above background technology is not good at odor treatment and easily pollutes the working environment and uses a single-axis stirring to affect the mixing effect and efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electrolyte preparation mixing device for an electrochemical cell, comprising a main body, wherein a mixing chamber is provided inside the main body, and the mixing chamber is used for mixing raw materials for preparing the electrolyte;

[0007] It also includes a first transmission chamber, which is opened above the mixing chamber, first stirring shafts are arranged on both sides of the first transmission chamber, and one of the first stirring shafts is rotatably connected to the first transmission chamber, second transmission chambers are opened on both sides below the mixing chamber, one end of the first stirring shaft passes through the mixing chamber and extends to the inside of the second transmission chamber, and the first stirring shaft is rotatably matched with the second transmission chamber, three groups of equidistantly distributed stirring blades are welded on the outer wall of the first stirring shaft at one end inside the mixing chamber, and each group of stirring blades is welded with four stirring blades in a ring-shaped and equidistant manner, a connecting shaft is rotatably arranged at the lower end inside the second transmission chamber, a second stirring shaft is rotatably arranged at the upper end inside the second transmission chamber, and one end of the second stirring shaft passes through and extends to the inside of the mixing chamber, and four equidistantly distributed stirring rods are welded on the outer wall of the second stirring shaft at one end inside the mixing chamber;

[0008] It also includes a purification chamber, which is opened on one side of the upper end of the main body. Four equidistantly distributed activated carbon air purification plates are arranged inside the purification chamber. The purification chamber is connected to the mixing chamber through a number of through holes distributed in a rectangular array.

[0009] Preferably, a motor is provided on one side of the upper end of the first transmission cavity, and the output end of the motor is connected to one of the first stirring shafts via a coupling.

[0010] Preferably, the first stirring shaft is connected to one end of the first transmission chamber through a first transmission belt.

[0011] Preferably, bevel gears are provided on one end of the first stirring shaft located inside the second transmission cavity and on one side of the outer wall of the connecting shaft, and the bevel gears are meshingly connected.

[0012] Preferably, one end of the second stirring shaft located inside the second transmission chamber is connected to the connecting shaft via a second transmission belt.

[0013] Preferably, a fan is provided on one side of the upper end of the main body, and the fan is connected to the purification chamber through a connecting pipe.

[0014] Preferably, a sealing door is installed on the upper side of the front end of the main body.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model opens a purification chamber on one side of the upper end of the main body. When the electrolyte raw materials are stirred, the fan can be started, and the fan will draw out the air in the purification chamber, so that the through hole can generate suction, and the odor generated by the stirring and mixing in the mixing chamber can be sucked into the purification chamber. An activated carbon air purification board is arranged in the purification chamber, which can fully purify the odor, so that the working environment can be cleaner and the interference and discomfort of the odor to the operator can be reduced. At the same time, the activated carbon air purification board can be regularly replaced by opening the sealed door to ensure the filtering and purification effect.

[0017] 2. The utility model opens a first transmission chamber above the mixing chamber. When mixing is performed, the motor can be started, and the motor will drive one of the first stirring shafts to rotate. At this time, the other first stirring shaft can also rotate synchronously under the transmission of the first transmission belt, thereby realizing the synchronous rotation of the two first stirring shafts. The two first stirring shafts will drive the stirring blades to rotate synchronously, and two stirring vortices can be generated. The two stirring vortices can form a more complex flow pattern in the mixing chamber, so that the electrolyte raw materials can be more fully stirred and mixed in the mixing chamber, which significantly improves the effect and efficiency of electrolyte mixing.

[0018] 3. The utility model opens a second transmission chamber on both sides below the mixing chamber. When the first stirring shaft rotates, it will drive the bevel gear in the second transmission chamber to rotate. The connecting shaft can be rotated under the meshing transmission of the bevel gear, and the second stirring shaft can be rotated synchronously under the transmission of the second transmission belt. The second stirring shaft can make the stirring rod rotate synchronously. The stirring rod stirs on both sides of the mixing chamber. As a rod-shaped structure, the stirring rod can effectively disperse the raw materials gathered near it when rotating in the mixing chamber, and can ensure that the raw materials in the mixing chamber can be fully stirred and mixed, thereby improving the stirring effect and making the entire mixing process more uniform and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view schematic diagram of the internal structure of the utility model;

[0020] Figure 2 It is a front view schematic diagram of the overall structure of the utility model;

[0021] Figure 3 It is a top view schematic diagram of the internal structure of the utility model;

[0022] Figure 4 For the utility model Figure 1 A partial enlarged view of the middle A area;

[0023] Figure 5 For the utility model Figure 1 A partial enlarged view of area B in the middle.

[0024] In the figure: 1. main body; 2. mixing chamber; 3. first transmission chamber; 4. first stirring shaft; 5. stirring blade; 6. first transmission belt; 7. motor; 8. second transmission chamber; 9. connecting shaft; 10. bevel gear; 11. second transmission belt; 12. second stirring shaft; 13. stirring rod; 14. purification chamber; 15. through hole; 16. activated carbon air purification plate; 17. fan; 18. connecting pipe; 19. sealing door. DETAILED DESCRIPTION

[0025] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5 The utility model provides a technical solution: an electrolyte preparation mixing device for an electrochemical cell, comprising a main body 1, a mixing chamber 2 is provided inside the main body 1, and the mixing chamber 2 is used for mixing raw materials for preparing the electrolyte;

[0027] It also includes a first transmission chamber 3, which is opened above the mixing chamber 2, and first stirring shafts 4 are arranged on both sides of the first transmission chamber 3, and one of the first stirring shafts 4 is rotatably connected to the first transmission chamber 3, and second transmission chambers 8 are opened on both sides below the mixing chamber 2, one end of the first stirring shaft 4 passes through the mixing chamber 2 and extends to the inside of the second transmission chamber 8, and the first stirring shaft 4 is rotatably matched with the second transmission chamber 8, and the outer wall of the first stirring shaft 4 at one end inside the mixing chamber 2 is welded with three groups of equidistantly distributed stirring blades 5, and each group of stirring blades 5 is welded with four stirring blades 5 in a ring-shaped and equidistant manner, the lower end of the second transmission chamber 8 is rotatably provided with a connecting shaft 9, the upper end of the second transmission chamber 8 is rotatably provided with a second stirring shaft 12, and one end of the second stirring shaft 12 passes through and extends to the inside of the mixing chamber 2, and the outer wall of the second stirring shaft 12 at one end inside the mixing chamber 2 is welded with four equidistantly distributed stirring rods 13 in a ring-shaped and equidistant manner;

[0028] It also includes a purification chamber 14, which is opened on one side of the upper end of the main body 1. Four equidistantly distributed activated carbon air purification plates 16 are arranged inside the purification chamber 14. The purification chamber 14 is connected to the mixing chamber 2 through a plurality of through holes 15 distributed in a rectangular array.

[0029] When in use, electrolyte raw materials are added to the mixing chamber 2 from the feed port of the main body 1, and the motor 7 drives the first stirring shaft 4 to realize dual-axis synchronous rotation through the first transmission belt 6 to form two stirring vortices to enhance the mixing effect. At the same time, the first stirring shaft 4 drives the bevel gear 10 in the second transmission chamber 8 to rotate, and then drives the second stirring shaft 12 to rotate synchronously through the second transmission belt 11. The stirring rod 13 breaks up the raw materials to ensure uniform mixing. The fan 17 draws the purification chamber 14 into negative pressure through the connecting pipe 18, and inhales the odor generated by the stirring through the through hole 15. The activated carbon air purification plate 16 absorbs and purifies these odors to ensure a clean working environment and reduce the interference and discomfort of the odor to the operator.

[0030] See also Figure 1 A motor 7 is provided on one side of the upper end of the first transmission cavity 3, and the output end of the motor 7 is connected to one of the first stirring shafts 4 through a coupling. The motor 7 can directly and efficiently drive the first stirring shaft 4 to rotate, thereby ensuring the stable transmission of stirring power and improving the stirring efficiency.

[0031] See also Figure 4 The first stirring shaft 4 is located at one end of the first transmission chamber 3 and is connected by a first transmission belt 6. The first transmission belt 6 realizes the synchronous rotation of the two first stirring shafts 4, thereby generating two stirring vortices, enhancing the mixing effect, and improving the mixing efficiency and uniformity of the electrolyte;

[0032] See also Figure 5 , a bevel gear 10 is provided on one end of the first stirring shaft 4 located inside the second transmission chamber 8 and one side of the outer wall of the connecting shaft 9, and the bevel gears 10 are meshed and connected. Through the meshing transmission of the bevel gears 10, the rotation of the first stirring shaft 4 can drive the rotation of the connecting shaft 9 and the second stirring shaft 12, thereby realizing the synchronous rotation of the second stirring shaft 12 and further enhancing the stirring effect;

[0033] See also Figure 1 The second stirring shaft 12 is connected to the connecting shaft 9 through a second transmission belt 11 at one end of the second transmission chamber 8. The second transmission belt 11 ensures stable connection and synchronous rotation between the connecting shaft 9 and the second stirring shaft 12, further improving the uniformity and efficiency of stirring.

[0034] See also Figure 1 and Figure 2 A fan 17 is provided on one side of the upper end of the main body 1, and the fan 17 is connected to the purification chamber 14 through a connecting pipe 18. Through the suction effect of the fan 17, the odor generated by the mixing and stirring can be sucked into the purification chamber 14, thereby achieving timely purification and treatment of the odor and maintaining a clean and comfortable working environment;

[0035] See also Figure 2 A sealing door 19 is installed on the upper side of the front end of the main body 1. By opening the sealing door 19, the activated carbon air purification plate 16 in the purification chamber 14 can be easily replaced and maintained, ensuring the filtering and purification effect and service life.

[0036] Working principle: When in use, the solvent, lithium salt and additives for preparing the electrolyte are added into the mixing chamber 2 from the feed port at the upper end of the main body 1, and the motor 7 is started. The motor 7 can rotate one of the first stirring shafts 4 under the transmission of the coupling, and can rotate the other first stirring shaft 4 synchronously under the transmission of the first transmission belt 6. The rotation of the two first stirring shafts 4 will drive the stirring blades 5 to rotate synchronously, thereby generating two stirring vortices. Compared with the single stirring vortex of single-axis stirring, the two stirring vortices can form a more complex flow pattern in the mixing chamber 2, so that the electrolyte raw materials can be more fully stirred and mixed in the mixing chamber 2, which significantly improves the effect and efficiency of electrolyte mixing. When the first stirring shaft 4 rotates, it will drive one of the bevel gears 10 in the second transmission chamber 8 to rotate, and the other bevel gear 10 can be rotated synchronously under the meshing transmission of the bevel gear 10, thereby driving the connecting shaft 9 to rotate. The connecting shaft 9 The second stirring shaft 12 can be driven by the second transmission belt 11 to rotate synchronously, and the second stirring shaft 12 will drive the stirring rod 13 to rotate synchronously. The stirring rod 13, as a rod-shaped structure, can effectively disperse the raw materials gathered near it when rotating in the mixing chamber, thereby improving the stirring effect and making the entire mixing process more uniform and efficient. The fan 17 can be started synchronously when stirring the electrolyte preparation raw materials. The fan 17 will extract the air in the purification chamber 14 through the connecting pipe 18, so that the interior thereof is under negative pressure, thereby generating suction at the through hole 15, and sucking the odor generated by the mixing and stirring into the interior of the purification chamber 14. An activated carbon air purification plate 16 is provided in the purification chamber 14, which can absorb and purify the odor passing through, thereby making the working environment cleaner and reducing the interference and discomfort of the odor to the operator. At the same time, the activated carbon air purification plate 16 can be replaced by opening the sealing door 19 to ensure the filtering and purification effect.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An electrolyte preparation mixing device for an electrochemical cell, comprising a main body (1), wherein a mixing chamber (2) is provided inside the main body (1), and the mixing chamber (2) is used for mixing raw materials for preparing the electrolyte, characterized in that: The invention also comprises a first transmission chamber (3), which is opened above the mixing chamber (2); first stirring shafts (4) are arranged on both sides of the first transmission chamber (3), and one of the first stirring shafts (4) is rotatably connected to the first transmission chamber (3); second transmission chambers (8) are opened on both sides below the mixing chamber (2); one end of each of the first stirring shafts (4) passes through the mixing chamber (2) and extends to the inside of the second transmission chamber (8); and each of the first stirring shafts (4) is rotatably matched with the second transmission chamber (8); the first stirring shaft (4) is located in the mixing chamber ( 2) three groups of stirring blades (5) are welded to the outer wall at one end of the interior, and each group of stirring blades (5) is welded with four stirring blades (5) at equal distances in a ring shape; a connecting shaft (9) is rotatably provided at the lower end of the interior of the second transmission chamber (8); a second stirring shaft (12) is rotatably provided at the upper end of the interior of the second transmission chamber (8), and one end of the second stirring shaft (12) penetrates and extends into the interior of the mixing chamber (2); and four stirring rods (13) are welded to the outer wall at one end of the second stirring shaft (12) located inside the mixing chamber (2); It also comprises a purification chamber (14) which is opened on one side of the upper end of the main body (1), and four activated carbon air purification plates (16) are arranged in an equidistant manner inside the purification chamber (14). The purification chamber (14) is connected to the mixing chamber (2) via a plurality of through holes (15) distributed in a rectangular array.

2. The electrochemical cell electrolyte preparation mixing device according to claim 1, characterized in that: A motor (7) is provided on one side of the upper end of the first transmission chamber (3), and the output end of the motor (7) is connected to one of the first stirring shafts (4) via a coupling.

3. The electrochemical cell electrolyte preparation mixing device according to claim 1, characterized in that: The first stirring shaft (4) is connected to one end of the first transmission chamber (3) via a first transmission belt (6).

4. The electrochemical cell electrolyte preparation mixing device according to claim 1, characterized in that: A bevel gear (10) is provided on one end of the first stirring shaft (4) located inside the second transmission chamber (8) and on one side of the outer wall of the connecting shaft (9), and the bevel gears (10) are meshingly connected.

5. The electrochemical cell electrolyte preparation mixing device according to claim 1, characterized in that: One end of the second stirring shaft (12) located inside the second transmission chamber (8) is connected to the connecting shaft (9) via a second transmission belt (11).

6. The electrochemical cell electrolyte preparation mixing device according to claim 1, characterized in that: A fan (17) is provided on one side of the upper end of the main body (1), and the fan (17) is connected to the purification chamber (14) via a connecting pipe (18).

7. The electrochemical cell electrolyte preparation and mixing device according to claim 1, characterized in that: A sealing door (19) is installed on the upper side of the front end of the main body (1).

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