CN218513657U - Vacuum liquid injection mechanism and liquid injection equipment - Google Patents
Vacuum liquid injection mechanism and liquid injection equipment Download PDFInfo
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- CN218513657U CN218513657U CN202222399526.4U CN202222399526U CN218513657U CN 218513657 U CN218513657 U CN 218513657U CN 202222399526 U CN202222399526 U CN 202222399526U CN 218513657 U CN218513657 U CN 218513657U
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- liquid injection
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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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Abstract
The utility model belongs to the technical field of the battery annotates the liquid, especially relate to a liquid mechanism and notes liquid equipment are annotated in vacuum. The vacuum liquid injection mechanism comprises a lifting driving piece, a liquid injection needle, a cavity body provided with a liquid injection cavity and a clamp used for installing a to-be-injected liquid piece; the output end of the lifting driving piece is connected with the clamp and used for driving the clamp to move towards the cavity until the clamp seals the liquid injection cavity; the liquid injection needle is inserted into the liquid injection cavity and used for injecting liquid into a piece to be injected. The utility model discloses in, the lift driving piece is right the pulling force of anchor clamps can make anchor clamps with annotate the liquid chamber between the cavity and maintain at encapsulated situation to guaranteed the malleation state annotate the accident that the liquid chamber can not take place gas leakage.
Description
Technical Field
The utility model belongs to the technical field of the battery annotates the liquid, especially relate to a liquid mechanism and notes liquid equipment are annotated in vacuum.
Background
With the continuous development of new energy technology. The lithium battery industry has also gained rapid development. Particularly experimental cylindrical batteries, during the manufacture of the cylindrical batteries, it is necessary to place the cell into the battery case and then to inject an electrolyte into the battery case.
In the prior art, a liquid injection machine is generally used for automatically injecting motor liquid into a battery shell; however, the battery liquid filling machine in the current market only emphasizes vacuum liquid filling, and ignores a positive pressure environment; when positive pressure protective gas is filled into the cavity containing the battery shell, the expansion force of the positive pressure protective gas makes the sealing performance of the cavity poor.
SUMMERY OF THE UTILITY MODEL
The utility model discloses when being in the malleation state to the cavity of battery notes liquid machine among the prior art, the poor technical problem of air-tightness performance provides a liquid mechanism and notes liquid equipment are annotated in vacuum.
In view of the above technical problem, an embodiment of the present invention provides a vacuum liquid injection mechanism, which includes a lifting driving member, a liquid injection needle, a cavity provided with a liquid injection cavity, and a clamp for mounting a to-be-injected liquid piece; the output end of the lifting driving piece is connected with the clamp and used for driving the clamp to move towards the cavity until the clamp seals the liquid injection cavity; the liquid injection needle is inserted into the liquid injection cavity and used for injecting liquid into a piece to be injected.
Optionally, an annular groove is formed in the outer wall of the clamp, and the vacuum liquid injection mechanism further comprises an annular sealing ring installed in the annular groove; the annular sealing ring is abutted against the inner wall of the cavity to seal the liquid injection cavity.
Optionally, a guide sealing part arranged opposite to the annular sealing ring is arranged on the inner wall of the cavity, and the guide sealing part is abutted against the annular sealing ring to seal the liquid injection cavity.
Optionally, the vacuum liquid injection mechanism further comprises a fixing seat and a fixing block, the lifting driving piece and the cavity are installed on the fixing seat, the fixing block is installed at the output end of the lifting driving piece, and the clamp is installed on the fixing block.
Optionally, the vacuum liquid injection mechanism further comprises a guide rod mounted on the fixing seat, a guide hole is formed in the fixing block, and the guide rod is inserted into the guide hole; the lifting driving piece drives the fixed seat to move along the guide rod.
Optionally, a mounting hole is formed in the fixing seat, and the cavity is mounted in the mounting hole;
still be equipped with the intercommunication on the cavity annotate the liquid hole in liquid chamber, the vacuum is annotated liquid mechanism still including installing support on the fixing base, annotate the liquid needle and install on the support, just the injection portion of annotating the liquid needle passes annotate the liquid hole and stretch into in annotating the liquid chamber.
Optionally, the cavity is further provided with a vacuum interface and a positive pressure interface which are both communicated with the liquid injection cavity; the external vacuumizing device is communicated with the liquid injection cavity through the vacuum interface and is used for vacuumizing the liquid injection cavity into a vacuum state through the vacuum interface; and the external gas injection device is communicated with the liquid injection cavity through the positive pressure interface and is used for injecting gas into the liquid injection cavity through the positive pressure interface.
In the utility model, the output end of the lifting driving piece is connected with the clamp and is used for driving the clamp to move towards the cavity until the clamp seals the liquid injection cavity; when the lifting driving piece drives the clamp and the cavity body is abutted, at the moment, the liquid injection piece is in a sealing state in the liquid injection cavity, the external vacuumizing device extracts the liquid injection cavity into a vacuum state, and then the liquid injection needle can inject liquid into the liquid injection piece in the sealing state. When outside gas injection device past fill into the cover gas in annotating the liquid chamber, at this moment, it is in the malleation state to annotate the liquid chamber, it is right to go up and down the driving piece the pulling force of anchor clamps can make anchor clamps with annotate the liquid chamber between the cavity and maintain at encapsulated situation to guaranteed the malleation state annotate the accident that the liquid chamber can not take place the gas leakage. In addition, the vacuum liquid injection mechanism is simple in structure and low in manufacturing cost.
Further, when waiting to annotate the liquid piece when being the cylinder battery case, annotate the liquid needle and can inject electrolyte in the cylinder battery case in the past, vacuum state annotate the air that the liquid chamber has completely cut off among the external environment and reacted with electrolyte to avoided electrolyte to influence the accident of battery performance because of the contact air, secondly vacuum state's battery case is favorable to stewing and infiltration of electrolyte more, has shortened the preparation time of battery, has reduced the cost of manufacture of battery. The positive pressure environment annotates the liquid chamber and not only can make the more abundant infiltration battery of electrolyte, has still shortened the infiltration time of electrolyte, can imitate the high-pressure environment of battery moreover to can detect whether the battery can break down under being in the high-pressure environment.
The utility model also provides a liquid injection device, which comprises a host, a storage for storing liquid, an injection pump and the vacuum liquid injection mechanism; the inlet of the injection pump is communicated with the storage, the outlet of the injection pump is communicated with the inlet of the liquid injection needle, and the injection pump is used for sucking the liquid in the storage and injecting the liquid into the piece to be injected through the liquid injection needle;
the host is internally provided with a controller which is electrically connected with the injection pump and the lifting driving piece.
Optionally, the liquid injection device further includes a transfer pump and a buffer tank both electrically connected to the controller, an inlet of the transfer pump is communicated with the storage, an outlet of the transfer pump is communicated with an inlet of the buffer tank, and an outlet of the buffer tank is communicated with an inlet of the injection pump; the transfer pump is used for pumping the liquid in the storage device into the buffer tank, and the liquid injection pump is used for injecting the liquid in the buffer tank into the to-be-injected liquid piece through the liquid injection needle.
Optionally, still be equipped with in the host computer and all communicate the evacuating device and the gas injection device of annotating the liquid chamber, evacuating device be used for with it is the vacuum state to annotate the liquid chamber extraction, the gas injection device be used for toward annotate the liquid chamber and inject gas, the controller electricity is connected evacuating device with the gas injection device.
Drawings
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is a schematic structural diagram of a vacuum liquid injection mechanism according to an embodiment of the present invention;
fig. 2 is a sectional view of a vacuum liquid injection mechanism according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
fig. 4 is a schematic structural diagram of a liquid injection device according to an embodiment of the present invention.
The reference numerals in the specification are as follows:
1. a vacuum liquid injection mechanism; 11. a lifting drive member; 12. injecting liquid; 13. a cavity; 131. a liquid injection chamber; 132. a guide seal portion; 14. a clamp; 15. an annular seal ring; 16. a fixed seat; 17. a fixed block; 18. a guide bar; 19. a support; 2. a host; 4. an injection pump; 5. a transfer pump; 6. a buffer tank; 7. and (5) a piece to be injected with liquid.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", "middle", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing and simplifying the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 and fig. 2, a vacuum liquid injection mechanism 1 according to an embodiment of the present invention includes a lifting driving member 11, a liquid injection needle 12, a cavity 13 having a liquid injection cavity 131, and a clamp 14 for mounting a liquid injection member 7 to be injected; the output end of the lifting driving element 11 is connected with the clamp 14, and is used for driving the clamp 14 to move towards the cavity 13 until the clamp 14 seals the liquid injection cavity 131; the liquid injection needle 12 is inserted into the liquid injection chamber 131 and is used for injecting liquid into the liquid injection piece 7. It can be understood that the lifting driving member 11 includes, but is not limited to, a linear motor, a pneumatic cylinder, a hydraulic cylinder, a screw-nut mechanism, etc., the member to be injected 7 is a hollow structural member with an open upper end, and the injection needle 12 is located right above the member to be injected 7; preferably, the lifting driving member 11 is a pneumatic cylinder.
The liquid injection member 7 includes, but is not limited to, a cylindrical battery case, and when the liquid injection member 7 is a cylindrical battery case, the liquid injection needle 12 is used to inject the electrolyte into the liquid injection cavity 131, so that the electrolyte is injected into the cylindrical battery case.
In the present invention, the output end of the lifting driving member 11 is connected to the clamp 14, and is used for driving the clamp 14 to move toward the cavity 13 until the clamp 14 seals the liquid injection cavity 131; when the lifting driving part 11 drives the clamp 14 and the cavity 13 are abutted, at the moment, the liquid injection part 7 is in a sealing state in the liquid injection cavity 131, and after the liquid injection cavity 131 is extracted into a vacuum state by an external vacuumizing device, the liquid injection needle 12 can inject liquid into the liquid injection part 7 in the sealing state. Go as outside gas injection device fill into the cover gas in annotating the liquid chamber 131, at this moment, it is in the malleation state to annotate liquid chamber 131, it is right to go up and down driving piece 11 anchor clamps 14's pulling force can make anchor clamps 14 with annotate liquid chamber 131 between the cavity 13 and maintain encapsulated situation to guaranteed the malleation state annotate the accident that liquid chamber 131 can not take place gas leakage. Moreover, the vacuum liquid injection mechanism 1 has a simple structure and low manufacturing cost.
Further, when treating annotate liquid piece 7 when cylinder battery case, annotate liquid needle 12 can toward inject electrolyte into the cylinder battery case, vacuum state annotate the air that liquid chamber 131 has completely cut off the external environment and react with electrolyte to avoided electrolyte to influence the accident of battery performance because of contacting the air, secondly vacuum state's cylinder battery case is favorable to stewing and infiltrating of electrolyte more, has shortened the preparation time of battery, has reduced the cost of manufacture of battery. The liquid injection cavity 131 in the positive pressure environment not only can enable the electrolyte to more fully infiltrate the battery, but also shortens the infiltration time of the electrolyte, and can simulate the high-pressure environment of the battery, so that whether the battery breaks down under the high-pressure environment can be detected.
In an embodiment, as shown in fig. 1 to 3, an annular groove is provided on an outer wall of the clamp 14, and the vacuum liquid injection mechanism 1 further includes an annular sealing ring 15 installed in the annular groove; the annular sealing ring 15 abuts against the inner wall of the cavity 13 to seal the liquid injection cavity 131. Understandably, an insertion groove is formed in the clamp 14, and the liquid injection piece 7 is mounted on the clamp 14 through the insertion groove; the annular groove is provided in the upper portion of the clamp 14, and the annular seal ring 15 protrudes outwardly from the annular groove. Specifically, the lifting driving element 11 drives the clamp 14 to move upwards, so that the annular sealing ring 15 is clamped between the clamp 14 and the outer wall and the inner wall of the cavity 13, and thus the annular sealing ring 15 can ensure that the liquid injection cavity 131 is maintained in a sealed state; in addition, in the vacuum liquid injection chamber 131, due to the pressure values inside and outside the liquid injection chamber 131, the annular sealing ring 15 can be more tightly attached to the inner wall of the chamber 13, thereby further ensuring the sealing performance of the vacuum liquid injection chamber 131.
In one embodiment, as shown in FIGS. 2 and 3, a guide sealing portion 132 is provided on the inner wall of the chamber 13 to face the annular packing 15, and the guide sealing portion 132 abuts against the annular packing 15 to seal the pouring chamber 131. It is understood that the guide sealing portion 132 is disposed at the lower portion of the cavity 13, and the guide sealing portion 132 includes, but is not limited to, round corners, chamfers, and the like. Specifically, the lifting driving element 11 drives the clamp 14 to move upwards, and since the guiding sealing portion 132 gradually extends from the lower part towards the upper part towards the middle part of the liquid injection cavity 131, the guiding sealing portion 132 gradually contacts with the annular sealing ring 15, so that the annular sealing ring 15 is more tightly attached to the guiding sealing portion 132, and the sealing performance of the liquid injection cavity 131 is further ensured.
In an embodiment, as shown in fig. 1, the vacuum liquid injection mechanism 1 further includes a fixing seat 16 and a fixing block 17, the lifting driving element 11 and the cavity 13 are both installed on the fixing seat 16, the fixing block 17 is installed at an output end of the lifting driving element 11, and the clamp 14 is installed on the fixing block 17. It is understood that the clamp 14 is mounted at the output end of the lifting driving member 11 through the fixing block 17, and the fixed end of the lifting driving member 11 is mounted on the fixing seat 16. In this embodiment, the lifting driving element 11 drives the clamp 14 to move through the fixing block 17, so that the stability of the lifting driving element 11 driving the clamp 14 to move is ensured.
In an embodiment, as shown in fig. 1 and fig. 2, the vacuum liquid injection mechanism 1 further includes a guide rod 18 mounted on the fixing seat 16, the fixing block 17 is provided with a guide hole, and the guide rod 18 is inserted into the guide hole; the lifting driving member 11 drives the fixed seat 16 to move along the guide rod 18. It can be understood that the guide rod 18 is arranged along the moving direction of the fixed block 17, and the fixed block 17 slides on the guide rod 18 through the guide hole while the lifting driving element 11 drives the fixed block 17 to move, thereby further ensuring the stability of the movement of the fixed block 17.
In one embodiment, as shown in fig. 1 and fig. 2, the fixing base 16 is provided with a mounting hole, and the cavity 13 is mounted in the mounting hole; it will be appreciated that the upper portion of the cavity 13 is mounted in the mounting hole, thereby simplifying the assembly and disassembly of the cavity 13 and the fixing base 16.
Still be equipped with the intercommunication on the cavity 13 annotate the liquid hole of liquid chamber 131, vacuum is annotated liquid mechanism 1 and is still including installing support 19 on the fixing base 16, annotate liquid needle 12 and install on support 19, just the injection portion of annotating liquid needle 12 passes annotate the liquid hole and stretch into in annotating the liquid chamber 131. It is understood that the bracket 19 is located above the mounting hole, the liquid injection needle 12 is fixed on the bracket 19, and the lower end of the liquid injection needle 12 extends into the liquid injection chamber 131 through the injection hole, so that the liquid injection needle 12 can inject liquid into the liquid injection member 7 (the liquid injection member 7 in a vacuum state). In this embodiment, the vacuum liquid injection mechanism 1 has a compact structure.
In an embodiment, the chamber 13 is further provided with a vacuum port (not shown) and a positive pressure port (not shown) both connected to the liquid injection chamber 131; the external vacuumizing device is communicated with the liquid injection cavity 131 through the vacuum interface and is used for vacuumizing the liquid injection cavity 131 through the vacuum interface; and the external gas injection device is communicated with the liquid injection cavity 131 through the positive pressure interface and is used for injecting gas into the liquid injection cavity 131 through the positive pressure interface. As can be appreciated, the external vacuum-pumping device is connected with the vacuum interface through a connecting pipe, and the external gas-injection device is communicated with the positive pressure interface through a connecting pipe; specifically, the external vacuum pumping device can pump the sealed infusion cavity 131 into a vacuum state through the vacuum interface, and the external gas injection device can inject shielding gas into the sealed infusion cavity 131 through the positive pressure interface, so that the infusion cavity 131 is maintained in a positive pressure state.
As shown in fig. 4, another embodiment of the present invention further provides a liquid injection device, which includes a main machine 2, a storage (not shown in the figure) for storing liquid, an injection pump 4 and the above-mentioned vacuum liquid injection mechanism 1; the inlet of the injection pump 4 is communicated with the storage, the outlet of the injection pump 4 is communicated with the inlet of the liquid injection needle 12, and the injection pump 4 is used for sucking the liquid in the storage and injecting the liquid into the to-be-injected liquid 7 through the liquid injection needle 12; it is understood that the reservoir may be a liquid storage bottle, a liquid storage tank, etc., and the syringe pump 4 includes, but is not limited to, a peristaltic pump, etc.; the syringe pump 4 may be mounted on the main body 2.
A controller is arranged in the main machine 2 and electrically connected with the injection pump 4 and the lifting driving piece 11. It can be understood that the controller can control the lifting driving element 11 to drive the clamp 14 to move up and down, and the controller can also control the injection pump 4 to pump the liquid in the storage and inject the liquid into the liquid to be injected 7 through the liquid injection needle 12.
The utility model discloses in, no matter annotate liquid chamber 131 and be in malleation or vacuum state, liquid mechanism 1 all has better leakproofness is annotated in the vacuum.
In an embodiment, as shown in fig. 1, the liquid injection apparatus further includes a transfer pump 5 and a buffer tank 6, both of which are electrically connected to the controller, an inlet of the transfer pump 5 is communicated with the storage, an outlet of the transfer pump 5 is communicated with an inlet of the buffer tank 6, and an outlet of the buffer tank 6 is communicated with an inlet of the injection pump 4; the transfer pump 5 is used for pumping the liquid in the storage into the buffer tank 6, and the liquid injection pump is used for injecting the liquid in the buffer tank 6 into the to-be-injected liquid piece 7 through the liquid injection needle 12. It is understood that the transfer pump 5 includes, but is not limited to, a peristaltic pump, etc., the transfer pump 5 can pump the liquid in the storage into and out of the buffer tank 6, and the injection pump 4 can pump the liquid in the buffer tank 6 and inject the liquid into the liquid to be injected 7 according to actual requirements. In this embodiment, due to the design of the transfer pump 5 and the buffer tank 6, the accident that the injection pump 4 cannot pump liquid due to no liquid in the storage is avoided, and the stability of the liquid injection device is improved.
In an embodiment, a vacuum pumping device (not shown in the figure) and an air injection device (not shown in the figure) both connected to the liquid injection cavity 131 are further disposed in the main body 2, the vacuum pumping device is configured to pump the liquid injection cavity 131 into a vacuum state, the air injection device is configured to inject air into the liquid injection cavity 131, and the controller is electrically connected to the vacuum pumping device and the air injection device. It is understood that the vacuum device includes, but is not limited to, a vacuum pump, etc., the gas injection device includes, but is not limited to, a gas injection pump, etc., the vacuum pumping device communicates with the infusion chamber 131 through the vacuum interface, and the gas injection device communicates with the infusion chamber 131 through the positive pressure interface. In this embodiment, the vacuumizing device and the gas injection device are integrated in the main machine 2, so that the compactness and convenience of the liquid injection equipment are further improved.
Further, the main machine 2 is further provided with a positive pressure regulating valve and a negative pressure regulating valve, the vacuum pumping device is communicated with the liquid injection cavity 131 through the negative pressure regulating valve, and the negative pressure regulating valve can regulate the output pressure of the vacuum pumping device; the gas injection device passes through the malleation air-vent valve intercommunication annotate the liquid chamber 131, the malleation air-vent valve can be adjusted the injection pressure of gas injection device.
In an embodiment, the host 2 is further provided with a touch screen connected to the controller, and the touch screen can display pressure parameters and the like in the liquid injection chamber 131; the host machine 2 is also provided with a start button and an emergency stop button, the start button can control the start and stop of the host machine 2, and the emergency stop button can control the host machine 2 to be shut down in an emergency state.
The above embodiments are only examples of the vacuum liquid injection mechanism and the liquid injection device of the present invention, and are not intended to limit the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A vacuum liquid injection mechanism is characterized by comprising a lifting driving piece, a liquid injection needle, a cavity body with a liquid injection cavity and a clamp for mounting a to-be-injected liquid piece; the output end of the lifting driving piece is connected with the clamp and used for driving the clamp to move towards the cavity until the clamp seals the liquid injection cavity; the liquid injection needle is inserted into the liquid injection cavity and is used for injecting liquid into the piece to be injected.
2. The vacuum liquid injection mechanism according to claim 1, wherein an annular groove is provided on an outer wall of the clamp, and the vacuum liquid injection mechanism further comprises an annular sealing ring installed in the annular groove; the annular sealing ring is abutted against the inner wall of the cavity to seal the liquid injection cavity.
3. The vacuum priming mechanism of claim 2, wherein the inner wall of the chamber is provided with a guide sealing portion opposite to the annular sealing ring, and the guide sealing portion abuts against the annular sealing ring to seal the priming chamber.
4. The vacuum liquid injection mechanism according to claim 1, further comprising a fixing seat and a fixing block, wherein the lifting driving member and the cavity are mounted on the fixing seat, the fixing block is mounted at an output end of the lifting driving member, and the clamp is mounted on the fixing block.
5. The vacuum liquid injection mechanism according to claim 4, further comprising a guide rod mounted on the fixing base, wherein a guide hole is formed in the fixing block, and the guide rod is inserted into the guide hole; the lifting driving piece drives the fixed seat to move along the guide rod.
6. The vacuum liquid injection mechanism according to claim 4, wherein the fixing base is provided with a mounting hole, and the cavity is mounted in the mounting hole;
the vacuum liquid injection mechanism further comprises a support installed on the fixing seat, the liquid injection needle is installed on the support, and an injection portion of the liquid injection needle penetrates through the liquid injection hole and extends into the liquid injection cavity.
7. The vacuum liquid injection mechanism according to claim 1, wherein the chamber body is further provided with a vacuum interface and a positive pressure interface which are both communicated with the liquid injection chamber; the external vacuumizing device is communicated with the liquid injection cavity through the vacuum interface and is used for vacuumizing the liquid injection cavity into a vacuum state through the vacuum interface; outside gas injection device passes through malleation interface intercommunication annotate the liquid chamber, be used for through malleation interface is past annotate the liquid chamber and pour into gas.
8. A liquid injection device, comprising a host, a storage for storing liquid, a syringe pump and a vacuum liquid injection mechanism according to any one of claims 1 to 7; the inlet of the injection pump is communicated with the storage, the outlet of the injection pump is communicated with the inlet of the liquid injection needle, and the injection pump is used for sucking the liquid in the storage and injecting the liquid into the piece to be injected through the liquid injection needle;
a controller is arranged in the host, and the controller is electrically connected with the injection pump and the lifting driving piece.
9. The liquid injection device according to claim 8, further comprising a transfer pump and a buffer tank both electrically connected to the controller, wherein an inlet of the transfer pump is communicated with the storage, an outlet of the transfer pump is communicated with an inlet of the buffer tank, and an outlet of the buffer tank is communicated with an inlet of the injection pump; the transfer pump is used for pumping the liquid in the storage device into the buffer tank, and the liquid injection pump is used for injecting the liquid in the buffer tank into the to-be-injected liquid piece through the liquid injection needle.
10. The liquid injection apparatus according to claim 8, wherein a vacuum-pumping device and a gas injection device both communicating with the liquid injection chamber are further disposed in the host, the vacuum-pumping device is configured to pump the liquid injection chamber into a vacuum state, the gas injection device is configured to inject gas into the liquid injection chamber, and the controller is electrically connected to the vacuum-pumping device and the gas injection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222399526.4U CN218513657U (en) | 2022-09-08 | 2022-09-08 | Vacuum liquid injection mechanism and liquid injection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222399526.4U CN218513657U (en) | 2022-09-08 | 2022-09-08 | Vacuum liquid injection mechanism and liquid injection equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218513657U true CN218513657U (en) | 2023-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222399526.4U Active CN218513657U (en) | 2022-09-08 | 2022-09-08 | Vacuum liquid injection mechanism and liquid injection equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218513657U (en) |
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- 2022-09-08 CN CN202222399526.4U patent/CN218513657U/en active Active
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