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CN-122000649-A - Liquid injection bottle

CN122000649ACN 122000649 ACN122000649 ACN 122000649ACN-122000649-A

Abstract

The application discloses a liquid injection bottle which comprises a bottle body, a liquid injection head, a first valve core and a second valve core, wherein the liquid injection head is arranged on the bottle body, the first valve core is arranged to be communicated with the outside and the bottle body, the first valve core is provided with a first forward flowing direction, the first forward flowing direction is the direction from the outside to the inside of the bottle body, and under the condition that liquid flows into the bottle body from the first valve core, the volatilized gas of the liquid is prevented from flowing along the reverse direction of the first forward flowing direction. According to the scheme provided by the application, when the liquid flows from the first valve core to the inside of the bottle body along the first forward flowing direction, the gas volatilized by the liquid is blocked from flowing along the reverse direction of the first forward flowing direction, so that the gas volatilized by the liquid can be inhibited under the action of the first valve core when the liquid flows into the bottle body from the external flow channel, the volatilization of the liquid is avoided, and the accuracy of the formula proportion of the liquid electrolyte can be improved.

Inventors

  • LIU RONGKANG
  • REN MIAOMIAO
  • WEI YIMIN

Assignees

  • 宁德时代新能源科技股份有限公司
  • 厦门时代研究院有限公司

Dates

Publication Date
20260508
Application Date
20241106

Claims (20)

  1. 1. A liquid injection bottle, comprising: A bottle body; The liquid injection head is arranged on the bottle body, a first valve core is arranged on the liquid injection head, and the first valve core is communicated with the outside and the bottle body; the first valve core has a first forward flow direction, and the first forward flow direction is from the outside to the inside of the bottle body; under the condition that the liquid flows from the first valve core into the bottle body, the gas volatilized by the liquid is blocked from flowing in the reverse direction of the first forward flow direction.
  2. 2. The infusion bottle according to claim 1, wherein the bottle body comprises a body and a cap; The bottle body is provided with an opening structure on one side facing the bottle cap, and the bottle cap is arranged at the opening and is used for sealing the bottle body; the liquid injection head is arranged on the bottle cap, and the first valve core is communicated with the inside of the bottle body through the bottle cap.
  3. 3. The liquid filling bottle according to claim 2, wherein the liquid filling head is movably connected to the bottle cap, and the liquid filling head is movable relative to the bottle cap along the first forward flow direction.
  4. 4. The liquid injection bottle according to claim 3, wherein the liquid injection head comprises a cylinder and a moving table which are coaxially connected, the diameter of the moving table is larger than that of the cylinder, and the first valve core is arranged on the cylinder; the bottle cap is sequentially provided with a guide hole and a connecting hole along the direction of the first forward flowing direction, and the diameter of the guide hole is smaller than that of the connecting hole; At least part of the column body is positioned in the guide hole, the column body positioned in the guide hole is clung to the inner wall of the guide hole, and the mobile station is positioned in the connecting hole.
  5. 5. The fluid infusion bottle according to claim 4, further comprising an elastic member; An annular bulge is arranged on one side of the bottle cap, which is away from the bottle body, and the annular bulge is positioned at the periphery of the guide hole; The diameter of the protruding part along the second direction is larger than the inner diameter of the annular protrusion; Under the condition that the cylinder penetrates through the inside of the annular bulge and stretches into the guide hole, the elastic piece is sleeved on the annular bulge, one end of the elastic piece is abutted to the bottle cap, and the other end of the elastic piece is abutted to the protruding portion.
  6. 6. The liquid injection bottle of claim 5, wherein an outer cover is circumferentially arranged on the edge of the protruding part towards one end of the column body, and the outer cover, the protruding part and the column body are jointly surrounded to form a groove; The elastic piece is at least partially positioned in the groove.
  7. 7. The vial of claim 5, wherein the resilient member is a variable pitch spring.
  8. 8. The vial of claim 4, wherein the mobile station has a diameter equal to an inner diameter of the connection aperture.
  9. 9. The filling bottle according to claim 8, wherein the inner wall of the connecting hole is provided with an inner recess in a radial direction.
  10. 10. The filling bottle according to claim 9, wherein the height of the concave portion in the axial direction is equal to the depth of the connecting hole in the axial direction; and/or the cross section of the concave part along the radial direction is a fan-shaped structure.
  11. 11. The filling bottle according to any one of claims 4 to 10, wherein the first valve element is a tesla valve.
  12. 12. The fill bottle of claim 11, wherein the tesla valve comprises at least one primary flow passage and at least one annular bypass flow passage; one end of the main runner is communicated with the outside, the other end of the main runner is communicated with the first diversion hole, and two ends of the annular bypass runner are communicated with the main runner.
  13. 13. The filling bottle according to claim 12, wherein the main flow path has a flow path width of 1mm to 1.5mm; And/or the width of the annular bypass flow passage is 1mm-1.5mm.
  14. 14. The injection bottle of claim 11 wherein an end of the cylinder facing away from the mobile station is provided with an injection inlet, the injection inlet being in communication with the tesla valve.
  15. 15. The injection bottle of any one of claims 4 to 10 further comprising a second valve spool having a second forward flow direction, the second forward flow being in a direction from the interior of the bottle to the exterior; The second valve core is arranged on the cylinder, a second diversion hole is formed in one side, facing the moving table, of the cylinder along the second direction, and the second valve core is communicated with the second diversion hole; Under the condition that liquid does not flow into the first valve core, one side of the moving table, facing the cylinder, is in abutting connection with the top wall on the connecting hole, and the inner wall of the guide hole seals the outlet of the first guide hole and the inlet of the second guide hole; under the condition that liquid flows into the first valve core, the cylinder drives the moving table to move along the first forward flowing direction, an outlet of the first diversion hole is communicated with an inner concave part on the connecting hole, and an inner wall of the connecting hole seals an inlet of the second diversion hole; and under the condition that the column body rotates by a preset angle relative to the guide hole, the inlet of the second guide hole is communicated with the concave part, and the inner wall of the connecting hole seals the outlet of the first guide hole.
  16. 16. The fill bottle of claim 15, wherein the second valve element is a tesla valve.
  17. 17. The fluid injection bottle of claim 15, wherein the second valve core has a structure identical to the first valve core.
  18. 18. The injection bottle of claim 17 wherein the end of the cylinder facing away from the mobile station is provided with a pouring outlet, the second valve element being in communication with the pouring outlet.
  19. 19. The bottle of claim 18, wherein the end of the cylinder facing away from the mobile station is provided with a baffle for separating the pouring outlet from the pouring inlet on the cylinder.
  20. 20. The filling bottle of claim 2, wherein said body and said cap are removably connected.

Description

Liquid injection bottle Technical Field The application relates to the technical field of electrolyte, in particular to a liquid injection bottle. Background With the continuous development of lithium ion battery technology, more and more attention is paid to the research of electrolyte. The liquid electrolyte is composed of lithium salt, organic solvent and functional additive according to a certain proportion, and is called as 'blood' of lithium ion battery. The liquid electrolyte in the related art is easy to volatilize in the process of being configured in the liquid injection bottle, so that the formula proportion of the liquid electrolyte is not aligned. Disclosure of Invention In view of the above, the present application provides a liquid injection bottle, which can solve the problem that a liquid electrolyte is easy to volatilize during the process of disposing in the liquid injection bottle. In order to solve the technical problems, the application provides a liquid injection bottle, which comprises: A bottle body; The liquid injection head is arranged on the bottle body, a first valve core is arranged on the liquid injection head, and the first valve core is communicated with the outside and the bottle body; the first valve core has a first forward flow direction, and the first forward flow direction is from the outside to the inside of the bottle body; under the condition that the liquid flows from the first valve core into the bottle body, the gas volatilized by the liquid is blocked from flowing in the reverse direction of the first forward flow direction. According to the technical scheme provided by the embodiment of the application, when the liquid flows from the first valve core to the inside of the bottle body along the first forward flowing direction, the volatilized gas of the liquid is blocked from flowing along the reverse direction of the first forward flowing direction, so that the volatilized gas of the liquid can be inhibited under the action of the first valve core when the liquid flows into the bottle body from the external flow channel, the volatilization of the liquid is avoided, and the accuracy of the formula proportion of the liquid electrolyte can be improved. In some embodiments, the bottle comprises a body and a cap; The bottle body is provided with an opening structure on one side facing the bottle cap, and the bottle cap is arranged at the opening and is used for sealing the bottle body; The liquid injection head is arranged on the bottle cap, and the first valve core is communicated with the inside of the bottle body through the bottle cap. Thus, after the liquid flows into the bottle body from the first valve core and the bottle cap, the bottle cap can be opened to pour the liquid after the liquid is configured. In some embodiments, the liquid filling head is movably connected to the bottle cap, and the liquid filling head can move along the first forward flow direction relative to the bottle cap; under the condition that liquid does not flow into the first valve core, the bottle cap seals the outlet of the first valve core; Under the condition that liquid flows into the first valve core, the liquid injection head moves along the first forward flowing direction relative to the bottle cap, and the first valve core is communicated with the inside of the bottle body. Thus, when the liquid is not injected, the bottle cap seals the outlet of the first valve core, and at the moment, the whole bottle body is in a sealing state. When the liquid flow channel reaches the first valve core, the liquid injection head moves along the first forward flowing direction relative to the bottle cap, the first valve core is communicated with the inside of the bottle body, and at the moment, liquid can flow into the inside of the bottle body. In some embodiments, the liquid injection head comprises a cylinder and a moving table which are coaxially connected, the diameter of the moving table is larger than that of the cylinder, and the first valve core is arranged on the cylinder; the bottle cap is sequentially provided with a guide hole and a connecting hole along the direction of the first forward flowing direction, and the diameter of the guide hole is smaller than that of the connecting hole; At least part of the column body is positioned in the guide hole, the column body positioned in the guide hole is clung to the inner wall of the guide hole, and the mobile station is positioned in the connecting hole; Under the condition that liquid does not flow into the first valve core, one side of the moving table, facing the cylinder, is abutted against the top wall on the connecting hole, and the inner wall of the guide hole seals the outlet of the first guide hole; Under the condition that liquid flows into the first valve core, the cylinder drives the moving table to move along the first forward flowing direction, the first diversion hole is communicated with the inside of the bottle body,