Device for on-line automatic detection of electrolyte moisture in new energy battery production
By combining a premixing cylinder, a micro negative pressure pump, and an electric heater, the problems of uneven mixing and bubble interference in electrolyte moisture detection devices are solved, enabling rapid and accurate moisture detection.
Patent Information
- Application Number
- CN202423273479.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing electrolyte moisture detection devices are prone to slow detection speed and large error in the mixing process due to pipeline transport delays and air bubble interference.
A premixing cylinder and a micro negative pressure pump are used to quickly extract electrolyte and pure water. Combined with an electric heater at the bottom of the titration cell and a needle on the stirring rod, the mixture is made uniform and bubbles are reduced. A tuning fork densitometer is used to automatically measure the density.
This improves the efficiency of electrolyte moisture detection, reduces detection time and result error, and ensures the accuracy of detection results.
Smart Images
Figure CN223910723U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to new energy battery detection technical field, concretely is a kind of device for the online automatic detection of electrolyte moisture of production new energy battery. BACKGROUND
[0002] New energy battery is currently commonly used power source of electric vehicle drive system, and because new energy battery in production process, its electrolyte solution can contain more moisture, if moisture exceeds standard value, then it can cause great influence to the performance and service life of battery, therefore, new energy battery in production process, electrolyte needs to be extracted regularly to carry out moisture detection, to ensure that the moisture in electrolyte is not over standard.
[0003] The existing electrolyte usually needs to be stirred and mixed uniformly with detection reagent before the moisture detection is completed, and because the electrolyte and detection reagent are transported into the device through the pipeline, when the pipeline transportation is delayed, the mixing of electrolyte and detection reagent is easily disturbed, so that the speed of electrolyte moisture detection is slowed down, and the detection efficiency of electrolyte moisture is affected. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a kind of device for the online automatic detection of electrolyte moisture of production new energy battery, to solve the problems raised in the above background.
[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of device for the online automatic detection of electrolyte moisture of production new energy battery, including shell, titration cell is set in the inside of the shell, electric heater is installed at the bottom of the titration cell, stirring motor is installed in the middle part of the top of the shell, the output of the stirring motor is rotatably connected with shaft, the outer wall of the shaft is fixedly connected with stirring rod, the outer wall of the stirring rod is fixedly connected with several lancets, vertical pipe is penetrated in one side of the top of the shell, the bottom of the vertical pipe is fixedly connected with extension pipe, premixing barrel is sleeved in the top of the vertical pipe, electrolyte inlet pipe and pure water inlet pipe are respectively penetrated in the top of the premixing barrel, tuning fork densimeter is installed in the other side of the top of the shell, micro negative pressure pump is installed in the middle part of the top of the premixing barrel.
[0006] Preferably, first electromagnetic valve is installed at the joint of electrolyte inlet pipe and pure water inlet pipe and the top of the premixing barrel, second electromagnetic valve is installed at the joint of the vertical pipe and the bottom of the premixing barrel.
[0007] Preferably, the stand pipe is communicated with the inside of the titration pool through an extension pipe, and a pressure relief valve is arranged at the top end of the shell.
[0008] Preferably, a side wall of the bottom of the shell is penetrated by a liquid discharge pipe, and a third electromagnetic valve is arranged at the joint of the liquid discharge pipe and the shell.
[0009] Preferably, the input end of the tuning fork densimeter is located in the inside of the titration pool, and the bottom end of the extension pipe is close to the bottom of the inside of the titration pool.
[0010] Preferably, the premixing cylinder is communicated with the inside of the titration pool through a stand pipe.
[0011] Preferably, the air inlet of the micro negative pressure pump is communicated with the inside of the premixing cylinder.
[0012] Compared with the prior art, the device has the beneficial effects that:
[0013] 1. The device for on-line automatic detection of electrolyte moisture of new energy battery, through the premixing cylinder and the micro negative pressure pump, can quickly extract the electrolyte and pure water into the device, reduce the delay generated during the transportation of the electrolyte and pure water in the pipeline, and cooperate with the electric heater at the bottom of the titration pool, so that the electrolyte and pure water can absorb appropriate heat during mixing and stirring, and the electrolyte and pure water can be uniformly mixed, thereby facilitating the speed of electrolyte moisture detection and improving the efficiency of device detection of moisture.
[0014] 2. The device for on-line automatic detection of electrolyte moisture of new energy battery, through the extension pipe and the needle, when the pure water enters the electrolyte in the titration pool, the pure water can pass out from the bottom of the electrolyte instead of dropping on the liquid surface of the electrolyte, thereby reducing the bubbles generated due to the fluctuation of the liquid surface, and the bubbles generated during the stirring of the stirring rod can be pierced by the rotating needle, thereby reducing the number of bubbles in the solution and being more conducive to detecting the density of the solution after stirring, thereby reducing the error of the detection result. BRIEF DESCRIPTION OF DRAWINGS
[0015] Fig. 1 It is a whole structure schematic view of the device;
[0016] Fig. 2 It is an electric heater and extension pipe structure schematic view of the device;
[0017] Fig. 3 It is a stirring rod and needle structure schematic view of the device;
[0018] Fig. 4 It is a premixing cylinder and micro negative pressure pump structure schematic view of the device.
[0019] In the figure: 1, electrolyte inlet pipe; 2, first electromagnetic valve; 3, pure water inlet pipe; 4, premixing cylinder; 5, vertical pipe; 6, second electromagnetic valve; 7, shell; 8, stirring motor; 9, third electromagnetic valve; 10, liquid outlet pipe; 11, tuning fork densimeter; 12, pressure relief valve; 13, extension pipe; 14, stirring rod; 15, rotating shaft; 16, electric heater; 17, titration cell; 18, lancet; 19, micro negative pressure pump. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0021] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0022] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0023] As Figs. 1 to 4As shown, the device for online automatic detection of electrolyte moisture of new energy battery in the embodiment comprises a shell 7, a titration pool 17 is formed in the shell 7, an electric heater 16 is installed at the bottom of the titration pool 17, a stirring motor 8 is installed at the middle of the top end of the shell 7, a rotating shaft 15 is rotationally connected to the output end of the stirring motor 8, a stirring rod 14 is fixedly connected to the outer wall of the rotating shaft 15, a plurality of lancets 18 are fixedly connected to the outer wall of the stirring rod 14, a vertical pipe 5 penetrates through one side of the top end of the shell 7, an extension pipe 13 is fixedly connected to the bottom end of the vertical pipe 5, a premixing cylinder 4 is sleeved on the top end of the vertical pipe 5, an electrolyte inlet pipe 1 and a pure water inlet pipe 3 respectively penetrate through the top end of the premixing cylinder 4, a tuning fork densimeter 11 is installed on the other side of the top end of the shell 7, and a micro negative pressure pump 19 is installed at the middle of the top end of the premixing cylinder 4.
[0024] Specifically, the titration pool 17 is used to contain the electrolyte after sampling and pure water, the electric heater 16 is used to provide a suitable temperature for the solution mixing in the titration pool 17, so that the solution mixing is more rapid and uniform, the lancets 18 are made of non-metallic material and have good corrosion resistance, so that the lancets 18 are not easy to be corroded when stirring the electrolyte solution, so as to ensure the effect of the lancets 18 piercing the bubbles, the vertical pipe 5 is used to communicate the premixing cylinder 4 and the extension pipe 13, so that the electrolyte and the mixed solution of pure water in the premixing cylinder 4 can smoothly enter the titration pool 17, the surface of the premixing cylinder 4 is also provided with a liquid level sensor, so that the electrolyte sample in the premixing cylinder 4 can be quickly sucked, the electrolyte inlet pipe 1 and the pure water inlet pipe 3 are separately arranged, so that the electrolyte and the pure water do not interfere with each other, the tuning fork densimeter 11 is an automatic density measuring instrument, which can automatically read the density of the mixed solution, thereby facilitating the operator to use, and the micro negative pressure pump 19 is used to accelerate the speed of the electrolyte and the pure water entering the detection device, thereby reducing the delay of the electrolyte and the pure water in the conveying pipeline.
[0025] Further, the first electromagnetic valve 2 is installed at the joint of the electrolyte inlet pipe 1 and the pure water inlet pipe 3 and the top end of the premixing cylinder 4, the second electromagnetic valve 6 is installed at the joint of the vertical pipe 5 and the bottom end of the premixing cylinder 4, the first electromagnetic valve 2 can control the on-off of the electrolyte inlet pipe 1 and the pure water inlet pipe 3, and the second electromagnetic valve 6 can realize the on-off between the premixing cylinder 4 and the vertical pipe 5, thereby being conducive to realizing the control of the flow of the electrolyte and the pure water in the device.
[0026] Further, the vertical pipe 5 communicates with the inside of the titration pool 17 through the extension pipe 13, the top end of the shell 7 is provided with a pressure relief valve 12, the pressure relief valve 12 is used to reduce the probability of explosion of the air in the titration pool 17 due to thermal expansion, thereby being conducive to improving the safety of the device in use.
[0027] Further, a side wall of the bottom of the shell 7 is penetrated by a liquid discharge pipe 10, and a third electromagnetic valve 9 is installed at the joint of the liquid discharge pipe 10 and the shell 7. The liquid discharge pipe 10 is used to discharge the electrolyte after the water content detection, so as to facilitate the detection of the subsequent electrolyte.
[0028] Further, the input end of the tuning fork densimeter 11 is located inside the titration pool 17, and the bottom end of the extension pipe 13 is close to the bottom of the inside of the titration pool 17, so that the pure water flowing out of the extension pipe 13 does not directly drop on the liquid surface on the top of the titration pool 17, thereby reducing the bubbles generated by the fluctuation of the liquid surface in the titration pool 17, and reducing the interference of the bubbles on the solution density measurement.
[0029] Further, the premixing cylinder 4 is communicated with the inside of the titration pool 17 through the vertical pipe 5, so that the electrolyte and the pure water in the premixing cylinder 4 can smoothly enter the titration pool 17 for secondary stirring, thereby facilitating the mixing of the electrolyte and the pure water.
[0030] Further, the air inlet of the micro negative pressure pump 19 is communicated with the inside of the premixing cylinder 4, so that the micro negative pressure pump 19 can empty the inside of the premixing cylinder 4 and form a negative pressure, so that the electrolyte inlet pipe 1 and the pure water inlet pipe 3 communicated with the premixing cylinder 4 can quickly suck in the electrolyte and the pure water, thereby reducing the delay of the electrolyte and the pure water in the pipeline during transportation, and also facilitating the extraction of the electrolyte sample.
[0031] The use method of the embodiment is as follows: before using the device for online automatic detection of electrolyte water content of new energy battery, the device needs to be connected to an external power supply, and then the pipelines on the device are connected to corresponding containers or equipment. First, the micro negative pressure pump 19 can be started to exhaust the air in the premixing cylinder 4, and then the first electromagnetic valve 2 at the bottom of the electrolyte inlet pipe 1 is started to make the electrolyte be sucked into the premixing cylinder 4. Then, the second electromagnetic valve 6 is started to make the electrolyte pass through the vertical pipe 5 and the extension pipe 13 to enter the titration pool 17. Then, the density of the electrolyte without adding pure water can be measured. Then, the second electromagnetic valve 6 and the electromagnetic valve at the electrolyte inlet pipe 1 are closed, and the first electromagnetic valve 2 at the pure water inlet pipe 3 is started to make the pure water be sucked into the premixing cylinder 4. Then, the second electromagnetic valve 6 is started, at this time, the pure water will flow out from the position below the liquid level of the titration pool 17 through the extension pipe 13, and mix with the electrolyte in the titration pool 17. Then, the stirring motor 8 and the electric heater 16 can be started, so that the stirring motor 8 drives the stirring rod 14 to rotate, and the electric heater 16 heats the bottom of the titration pool 17 to make the electrolyte and the pure water quickly mix uniformly. At the same time, the needles 18 on the stirring rod 14 will pierce the bubbles generated in the solution during stirring, so that the solution is not easy to have bubbles after stirring. Finally, the tuning fork densimeter 11 detects the density of the mixed solution.
[0032] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.
Claims
1. A device for producing new energy battery online automatic detection of electrolyte moisture, comprising a shell (7), characterized in that: The inside of the shell (7) is provided with a titration cell (17), the bottom of the titration cell (17) is provided with an electric heater (16), the middle of the top end of the shell (7) is provided with a stirring motor (8), the output end of the stirring motor (8) is rotatably connected with a rotating shaft (15), the outer wall of the rotating shaft (15) is fixedly connected with a stirring rod (14), the outer wall of the stirring rod (14) is fixedly connected with a plurality of lancets (18), one side of the top end of the shell (7) penetrates a stand pipe (5), the bottom end of the stand pipe (5) is fixedly connected with an extension pipe (13), the top end of the stand pipe (5) is sleeved with a premixing cylinder (4), the top end of the premixing cylinder (4) penetrates an electrolyte inlet pipe (1) and a pure water inlet pipe (3) respectively, the other side of the top end of the shell (7) is provided with a tuning fork densimeter (11), the middle of the top end of the premixing cylinder (4) is provided with a micro negative pressure pump (19).
2. The device for online automatic detection of electrolyte moisture of new energy battery production according to claim 1, characterized in that: The intersection between the electrolyte inlet pipe (1) and the pure water inlet pipe (3) and the top end of the premixing cylinder (4) is provided with a first electromagnetic valve (2), the intersection between the stand pipe (5) and the bottom end of the premixing cylinder (4) is provided with a second electromagnetic valve (6).
3. The device for online automatic detection of electrolyte moisture of new energy battery production according to claim 1, characterized in that: The stand pipe (5) communicates with the inside of the titration cell (17) through the extension pipe (13), the top end of the shell (7) is provided with a pressure relief valve (12).
4. The device for online automatic detection of electrolyte moisture of new energy battery production according to claim 1, characterized in that: One side wall of the bottom of the shell (7) penetrates a drainage pipe (10), the intersection between the drainage pipe (10) and the shell (7) is provided with a third electromagnetic valve (9).
5. The device for online automatic detection of electrolyte moisture of new energy battery production according to claim 1, characterized in that: The input end of the tuning fork densimeter (11) is located in the inside of the titration cell (17), the bottom end of the extension pipe (13) is close to the bottom of the inside of the titration cell (17).
6. The device for online automatic detection of electrolyte moisture of new energy battery production according to claim 1, characterized in that: The premixing cylinder (4) communicates with the inside of the titration cell (17) through the stand pipe (5).
7. The device for online automatic detection of electrolyte moisture of new energy battery production according to claim 1, characterized in that: The air inlet of the micro negative pressure pump (19) communicates with the inside of the premixing cylinder (4).