CN107968184B - Liquid injection pump for injecting liquid into battery - Google Patents
Liquid injection pump for injecting liquid into battery Download PDFInfo
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- CN107968184B CN107968184B CN201711176613.0A CN201711176613A CN107968184B CN 107968184 B CN107968184 B CN 107968184B CN 201711176613 A CN201711176613 A CN 201711176613A CN 107968184 B CN107968184 B CN 107968184B
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- liquid
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- injecting
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Filling, Topping-Up Batteries (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a liquid injection pump for injecting liquid into a battery, which comprises a liquid pumping and injecting pump, a liquid pumping and injecting driving part, a liquid control valve and a liquid flow direction control driving part. The liquid pumping and injecting pump is provided with a liquid transfer cavity, a piston rod is movably arranged in the liquid transfer cavity, and the liquid pumping and injecting driving part drives the piston rod to reciprocate in the liquid transfer cavity; the liquid control valve comprises a control valve body and a valve core, the control valve body is provided with a liquid control cavity, the control valve body is provided with a liquid inlet, a transfer port and a liquid outlet which are communicated with the liquid control cavity, and the valve core is rotatably arranged in the liquid control cavity; the liquid control cavity of the control valve body is communicated with the liquid transfer cavity of the liquid pumping and injecting pump through the transfer port. The liquid injection pump can more accurately control the position of the vacuumizing motor to control the injection amount of the electrolyte, so that the electrolyte in the battery shell reaches the specified requirement, and the quality of a product is improved.
Description
Technical Field
The invention relates to the technical field of mechanical automatic production, in particular to a liquid injection pump for injecting liquid into a battery.
Background
With the continuous development of society and the continuous progress of science and technology, mechanical automatic production becomes a development trend, gradually replaces the traditional manual labor, and injects a new power source for the sustainable development of enterprises. Therefore, battery manufacturing enterprises also need to advance with time, actively promote technical transformation and vigorously develop mechanical automatic production through transformation and upgrading, so that the 'intelligent manufacturing' level of the enterprises is improved, and the sustainable development of the enterprises is realized.
In the production process of the battery, the electrolyte needs to be injected into the shell of the battery so as to meet the corresponding production process. The service life of the battery can be influenced by too much or too little electrolyte in the battery shell, and the product quality requirement can be met only by the battery reaching the specified electrolyte injection amount. How to control the injection amount of electrolyte by more accurately controlling the position of the vacuumizing motor, so that the electrolyte in the battery shell reaches the specified requirement, and the quality of the product is improved, which is a technical problem to be solved by research and development personnel of enterprises.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the liquid injection pump for injecting liquid into the battery, which can more accurately control the position of the vacuumizing motor to control the injection amount of the electrolyte, so that the electrolyte in the battery shell reaches the specified requirements, and the quality of the product is improved.
The purpose of the invention is realized by the following technical scheme:
a charge pump for charging a battery, comprising: the liquid pumping and filling device comprises a liquid pumping and filling pump, a liquid pumping and filling driving part, a liquid control valve and a liquid flow direction control driving part;
the liquid pumping and injecting pump is provided with a liquid transfer cavity, a piston rod is movably arranged in the liquid transfer cavity, and the liquid pumping and injecting driving part drives the piston rod to reciprocate in the liquid transfer cavity;
the liquid control valve comprises a control valve body and a valve core, the control valve body is provided with a liquid control cavity, the control valve body is provided with a liquid inlet, a transfer port and a liquid outlet which are communicated with the liquid control cavity, and the valve core is rotatably arranged in the liquid control cavity;
the liquid control cavity of the control valve body is communicated with the liquid transfer cavity of the liquid pumping and injecting pump through a transfer port;
the liquid flow direction control driving part drives the valve core to rotate so as to enable the liquid inlet, the liquid control cavity, the transfer port and the liquid transfer cavity to be communicated with each other, or enable the liquid transfer cavity, the transfer port, the liquid control cavity and the liquid outlet to be communicated with each other;
the liquid injection pump for injecting liquid into the battery further comprises a limit inductor for inducing the displacement of the piston rod.
In one embodiment, the liquid flow direction control driving part includes: the telescopic mechanism comprises a telescopic cylinder, a telescopic rod and a rotating shaft, wherein the telescopic rod is arranged at the telescopic end of the telescopic cylinder, the telescopic rod is provided with a rack, one end of the rotating shaft is provided with a gear meshed with the rack, and the other end of the rotating shaft is connected with the valve core.
In one embodiment, the liquid pumping and injecting drive part comprises: the screw rod is arranged at the output end of the motor, one end of the piston rod is fixed on the sleeve, the motor drives the screw rod to rotate, so that the sleeve can move in the liquid transfer cavity in a reciprocating mode, and the piston rod can move in the liquid transfer cavity in a reciprocating mode.
In one embodiment, the control valve body is a hollow cylinder structure with two open ends.
In one embodiment, the liquid control chamber is a cylindrical chamber structure.
In one embodiment, the liquid inlet is a circular opening.
In one embodiment, the transfer port is a circular opening.
In one embodiment, the liquid outlet is a circular opening.
According to the liquid injection pump for injecting the liquid into the battery, the liquid pumping and injecting pump, the liquid pumping and injecting driving part, the liquid control valve and the liquid flow direction control driving part are arranged, the structures of all the parts are optimally designed, and the position of the vacuumizing motor is more accurately controlled to control the injection amount of the electrolyte, so that the electrolyte in the battery shell reaches the specified requirement, and the quality of the product is improved.
Drawings
FIG. 1 is a block diagram of an infusion pump for infusing a battery in accordance with one embodiment of the present invention;
FIG. 2 is a cross-sectional view of the charge pump shown in FIG. 1 for charging the battery;
FIG. 3 is an exploded view of the liquid control valve of the charge pump for charging the battery shown in FIG. 1.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 and 2, an infusion pump 10 for injecting a battery includes: a liquid-extracting and filling pump 100, a liquid-extracting and filling drive unit 200, a liquid control valve 300, and a liquid flow direction control drive unit 400.
The liquid pumping and injecting pump 100 has a liquid transfer chamber 110, a piston rod 120 is movably disposed in the liquid transfer chamber 110, and a liquid pumping and injecting driving unit 200 drives the piston rod 120 to reciprocate in the liquid transfer chamber 110.
As shown in fig. 3, the liquid control valve 300 includes a control valve body 310 and a valve spool 320. The control valve body 310 has a liquid control cavity 311, the control valve body 310 is provided with a liquid inlet 312, a transfer port 313 and a liquid outlet 314 communicated with the liquid control cavity 311, and the valve core 320 is rotatably disposed in the liquid control cavity 311.
The liquid control chamber 311 of the control valve body 310 communicates with the liquid relay chamber 110 of the liquid-extracting and priming pump 100 through the relay port 313.
The liquid flow direction control driving portion 400 drives the valve element 320 to rotate, so that the liquid inlet 312, the liquid control cavity 311, the transfer port 313 and the liquid transfer cavity 110 are communicated with each other, or the liquid transfer cavity 110, the transfer port 313, the liquid control cavity 311 and the liquid outlet 314 are communicated with each other.
The infusion pump 10 for injecting the battery further includes a limit sensor 500 for sensing the displacement amount of the piston rod 120. In this embodiment, the piston rod 120 is provided with an induction protrusion, the liquid pumping and injecting pump 100 is provided with an induction through hole penetrating the liquid transfer cavity 110, and the limit inductor 500 induces the induction protrusion of the piston rod 120 in place through the induction through hole.
Specifically, the liquid flow direction control driving part 400 includes: telescopic cylinder 410, telescopic rod 420, axis of rotation 430. The telescopic rod 420 is disposed at the telescopic end of the telescopic cylinder 410, the telescopic rod 420 has a rack (not shown), one end of the rotating shaft 430 is provided with a gear 440 engaged with the rack, and the other end of the rotating shaft 430 is connected to the valve core 320.
Specifically, the drawing and injection drive unit 200 includes: motor 210, screw 220, sleeve 230. The sleeve 230 is screwed on the screw 220 and movably mounted in the liquid transfer chamber 110, the screw 220 is disposed at the output end of the motor 210, one end of the piston rod 120 is fixed on the sleeve 230, and the motor 210 drives the screw 220 to rotate, so that the sleeve 230 reciprocates in the liquid transfer chamber 110, and further the piston rod 120 reciprocates in the liquid transfer chamber 110.
The operating principle of the charge pump 10 for charging the battery is as follows:
at the initial position, the liquid pumping and injecting driving portion 200 drives the piston rod 120 to extend out, so that the volume of the liquid transfer chamber 110 is completely occupied by the piston rod 120, and at the same time, the liquid flow direction control driving portion 400 drives the valve core 320 to rotate, so that the liquid inlet 312, the liquid control chamber 311, the transfer port 313 and the liquid transfer chamber 110 are communicated with each other;
sucking a certain amount of liquid, wherein the liquid pumping and injecting driving part 200 drives the piston rod 120 to retract, the liquid enters the liquid control cavity 311 from the liquid inlet 312 due to vacuum difference and then enters the liquid transfer cavity 110 from the transfer port 313 until the limiting sensor 500 receives a signal in place, and the liquid pumping process is finished;
a switching passage, in which the valve element 320 is driven by the liquid flow direction control driving part 400 to rotate, so that the liquid transfer chamber 110, the transfer port 313, the liquid control chamber 311 and the liquid outlet 314 are communicated with each other;
the liquid is delivered, the liquid injection driving part 200 drives the piston rod 120 to extend again, the liquid enters the liquid control cavity 311 from the liquid transfer cavity 110 through the transfer port 313 due to vacuum difference, and then the liquid is discharged from the liquid control cavity 311 through the liquid outlet 314, and the liquid injection process is finished;
when the initial state is recovered, the valve element 320 is driven by the liquid flow direction control driving portion 400 to rotate, and the liquid inlet 312, the liquid control chamber 311, the transfer port 313 and the liquid transfer chamber 110 are communicated with each other again.
It is also described that the invention utilizes the PLC controller to adjust the pulse size of the vacuum motor, and precisely controls the position of the vacuum motor to control the liquid conveying amount, thereby achieving the function of setting the liquid injection amount; when carrying strong corrosivity electrolyte, for guarantee whole priming pump life, through installing the sealing washer additional in each equipment mouth department of the pump body, make electrolyte and air isolated, stop the corruption that chemical reaction leads to.
In this embodiment, the control valve body is a hollow cylinder structure with openings at two ends, the liquid control cavity is a cylindrical cavity structure, the liquid inlet is a circular opening, the transfer port is a circular opening, and the liquid outlet is a circular opening.
It should be noted that, in order to obtain better liquid flow direction control effect, the structure of the liquid control valve 300 is further optimized, for example:
the control valve body 310 is a hollow cylinder structure with openings at two ends, the liquid inlet 312, the transfer port 313 and the liquid outlet 314 are arranged on the side wall of the control valve body 310, the liquid inlet 312 and the liquid outlet 314 are arranged oppositely, the central axis of the liquid inlet 312 and the central axis of the liquid outlet 314 are positioned on the same straight line, the transfer port 313 is positioned between the liquid inlet 312 and the liquid outlet 314, and the central axis of the transfer port 313 and the central axis of the liquid inlet 312 are mutually vertical;
the valve core 320 is a cylindrical structure, the valve core 320 is provided with a liquid flow direction channel 321, and the liquid flow direction channel 321 is a groove structure arranged on the side wall of the valve core 320;
the valve element 320 is rotatably disposed in the liquid control chamber 311 such that the liquid inlet 312 communicates with the transit port 313 through the liquid flow passage 321, or such that the transit port 313 communicates with the liquid outlet 314 through the liquid flow passage 321.
Through the above structural optimization of the liquid control valve 300, the liquid flow direction control driving portion 400 drives the valve core 320 to rotate, or the liquid inlet 312 is communicated with the transit port 313 through the liquid flow direction passage 321, while the liquid outlet 314 is blocked by the side wall of the valve core 320, and is matched with the liquid pumping and injecting pump 100 to pump liquid; or, the transit port 313 is communicated with the liquid outlet 314 through the liquid flow direction passage 321, and the liquid inlet 312 is blocked by the side wall of the valve core 320, and is matched with the liquid pumping and injecting pump 100 to inject liquid, so that a better liquid flow direction control effect is obtained.
It should be further explained that, since the valve element 320 is rotatably disposed in the liquid control chamber 311, there is friction between the sidewall of the valve element 320 and the chamber wall of the liquid control chamber 311, during a long-term use, the sidewall of the valve element 320 is not prevented from having poor sealing property with the chamber wall of the liquid control chamber 311, and therefore, the valve element 320 needs to be replaced. In this embodiment, the control valve body 310 is a hollow cylinder structure with openings at both ends, and the valve core 320 is a cylinder structure, so that the valve core 320 can be more quickly installed in the liquid control cavity 311 of the control valve body 310, and the valve core 320 can be more quickly taken out of the liquid control cavity 311 of the control valve body 310.
According to the liquid injection pump 10 for injecting liquid into the battery, the liquid pumping and injecting pump 100, the liquid pumping and injecting driving part 200, the liquid control valve 300 and the liquid flow direction control driving part 400 are arranged, the structures of all the parts are optimally designed, and the position of the vacuumizing motor is more accurately controlled to control the injection amount of the electrolyte, so that the electrolyte in the battery shell reaches the specified requirement, and the quality of the product is improved.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. A charge pump for charging a battery, comprising: the liquid pumping and filling device comprises a liquid pumping and filling pump, a liquid pumping and filling driving part, a liquid control valve and a liquid flow direction control driving part;
the liquid pumping and injecting pump is provided with a liquid transfer cavity, a piston rod is movably arranged in the liquid transfer cavity, and the liquid pumping and injecting driving part drives the piston rod to reciprocate in the liquid transfer cavity;
the liquid control valve comprises a control valve body and a valve core, the control valve body is provided with a liquid control cavity, the control valve body is provided with a liquid inlet, a transfer port and a liquid outlet which are communicated with the liquid control cavity, and the valve core is rotatably arranged in the liquid control cavity;
the liquid control cavity of the control valve body is communicated with the liquid transfer cavity of the liquid pumping and injecting pump through a transfer port;
the liquid flow direction control driving part drives the valve core to rotate so as to enable the liquid inlet, the liquid control cavity, the transfer port and the liquid transfer cavity to be communicated with each other, or enable the liquid transfer cavity, the transfer port, the liquid control cavity and the liquid outlet to be communicated with each other;
the liquid injection pump for injecting liquid into the battery further comprises a limit inductor for inducing the displacement of the piston rod;
the valve core is of a cylindrical structure, the valve core is provided with a liquid flow direction channel, and the liquid flow direction channel is of a groove structure arranged on the side wall of the valve core.
2. The liquid charge pump for charging a battery according to claim 1, wherein the liquid flow direction control drive portion includes: the telescopic mechanism comprises a telescopic cylinder, a telescopic rod and a rotating shaft, wherein the telescopic rod is arranged at the telescopic end of the telescopic cylinder, the telescopic rod is provided with a rack, one end of the rotating shaft is provided with a gear meshed with the rack, and the other end of the rotating shaft is connected with the valve core.
3. The electrolyte priming pump for priming a battery according to claim 1, wherein the electrolyte priming driving part comprises: the screw rod is arranged at the output end of the motor, one end of the piston rod is fixed on the sleeve, the motor drives the screw rod to rotate, so that the sleeve can move in the liquid transfer cavity in a reciprocating mode, and the piston rod can move in the liquid transfer cavity in a reciprocating mode.
4. The electrolyte pump for filling a battery according to claim 1, wherein the control valve body has a hollow cylindrical structure open at both ends.
5. The electrolyte injection pump for injecting battery as defined in claim 4, wherein said liquid control chamber has a cylindrical chamber structure.
6. The electrolyte priming pump for battery priming according to claim 4, wherein said inlet port is a circular opening.
7. The electrolyte priming pump for filling a battery according to claim 4, wherein said transfer port is a circular opening.
8. The electrolyte injection pump for injecting a battery as defined in claim 4, wherein the liquid outlet is a circular opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711176613.0A CN107968184B (en) | 2017-11-22 | 2017-11-22 | Liquid injection pump for injecting liquid into battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711176613.0A CN107968184B (en) | 2017-11-22 | 2017-11-22 | Liquid injection pump for injecting liquid into battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107968184A CN107968184A (en) | 2018-04-27 |
| CN107968184B true CN107968184B (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711176613.0A Active CN107968184B (en) | 2017-11-22 | 2017-11-22 | Liquid injection pump for injecting liquid into battery |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159506A (en) * | 2019-06-28 | 2019-08-23 | 深圳市恒瑞兴自动化设备有限公司 | Crystallization-preventive topping-up pump |
| CN113270697A (en) * | 2021-05-14 | 2021-08-17 | 深圳市铂纳特斯自动化科技有限公司 | Liquid injection device and battery liquid injection mechanism |
Citations (5)
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|---|---|---|---|---|
| JP2004127826A (en) * | 2002-10-04 | 2004-04-22 | Sony Corp | Liquid injection device and leaked liquid removal device |
| CN101169111A (en) * | 2007-11-01 | 2008-04-30 | 王桐梅 | Screw piston pump |
| CN205900684U (en) * | 2016-07-04 | 2017-01-18 | 东莞市超业精密设备有限公司 | Accurate liquid system of annotating of numerical control |
| CN205977579U (en) * | 2016-07-15 | 2017-02-22 | 东莞辉奥电器有限公司 | Motor pump |
| CN206071811U (en) * | 2016-07-28 | 2017-04-05 | 广东力王新能源股份有限公司 | Electrical potential notes cream pump |
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2017
- 2017-11-22 CN CN201711176613.0A patent/CN107968184B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004127826A (en) * | 2002-10-04 | 2004-04-22 | Sony Corp | Liquid injection device and leaked liquid removal device |
| CN101169111A (en) * | 2007-11-01 | 2008-04-30 | 王桐梅 | Screw piston pump |
| CN205900684U (en) * | 2016-07-04 | 2017-01-18 | 东莞市超业精密设备有限公司 | Accurate liquid system of annotating of numerical control |
| CN205977579U (en) * | 2016-07-15 | 2017-02-22 | 东莞辉奥电器有限公司 | Motor pump |
| CN206071811U (en) * | 2016-07-28 | 2017-04-05 | 广东力王新能源股份有限公司 | Electrical potential notes cream pump |
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| CN107968184A (en) | 2018-04-27 |
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