Liquid injection bottle

Abstract

The invention discloses a liquid injection bottle which comprises a bottle body. The liquid injection head is arranged on the bottle body, a first valve element is arranged on the liquid injection head, and the first valve element is arranged to be communicated with the outside and the bottle body; the first valve element has a first forward flowing direction, and the first forward flowing direction is the direction from the outside to the inside of the bottle body; under the condition that liquid flows into the bottle body from the first valve element, gas volatilized by the liquid is prevented from flowing in the direction opposite to the first forward flowing direction. According to the scheme, when liquid flows into the bottle body from the first valve element in the first forward flowing direction, gas volatilized by the liquid is prevented from flowing in the direction opposite to the first forward flowing direction, and therefore when the liquid flows into the bottle body from an external flow channel, under the action of the first valve element, the gas volatilized by the liquid is prevented from flowing into the bottle body. Therefore, the gas volatilized by the liquid can be inhibited, and the liquid is prevented from volatilizing, so that the accuracy of the formula proportion of the liquid electrolyte can be improved.

Description

Technical Field

[0001] This application relates to the field of electrolyte technology, and in particular to a liquid injection bottle. Background Technology

[0002] With the continuous development of lithium-ion battery technology, research on electrolytes has received increasing attention. Liquid electrolytes are composed of lithium salts, organic solvents, and functional additives in a certain proportion, and are known as the "blood" of lithium-ion batteries.

[0003] In the related technologies, the liquid electrolyte is prone to volatilization during the preparation process in the injection bottle, which can lead to inaccurate liquid electrolyte formulation ratios. Summary of the Invention

[0004] In view of the above problems, this application provides a liquid injection bottle that can solve the problem of easy evaporation of liquid electrolytes during the preparation process in the injection bottle.

[0005] To solve the above-mentioned technical problems, this application proposes a liquid injection bottle, comprising:

[0006] Bottle body;

[0007] The injection head is disposed on the bottle body and is provided with a first valve core. The first valve core is configured to communicate with the outside and the bottle body. The first valve core has a first positive flow direction, which is from the outside to the inside of the bottle body.

[0008] When liquid flows from the first valve core into the bottle body, the gas evaporating from the liquid is prevented from flowing in the opposite direction to the first forward flow direction.

[0009] In the technical solution of this application embodiment, when the liquid flows from the first valve core into the bottle body along the first positive flow direction, the gas evaporating from the liquid is blocked from flowing in the opposite direction of the first positive flow direction. In this way, when the liquid flows from the external channel into the bottle body, the gas evaporating from the liquid can be suppressed under the action of the first valve core, thus preventing the liquid from evaporating and improving the accuracy of the liquid electrolyte formula ratio.

[0010] In some embodiments, the bottle body includes a bottle body and a bottle cap;

[0011] The side of the bottle body facing the bottle cap has an opening structure, and the bottle cap is disposed at the opening to seal the bottle body;

[0012] The dispensing head is located on the bottle cap, and the first valve core communicates with the inside of the bottle body through the bottle cap. In this way, after the liquid flows from the first valve core and the bottle cap into the bottle body, the bottle cap can be opened to pour out the liquid once the liquid preparation is complete.

[0013] In some embodiments, the injection head is movably connected to the bottle cap, and the injection head is capable of moving relative to the bottle cap along the first positive flow direction;

[0014] The bottle cap seals the outlet of the first valve core when no liquid flows into it.

[0015] When liquid flows into the first valve core, the injection head moves relative to the bottle cap in the first positive flow direction, and the first valve core is in communication with the inside of the bottle body.

[0016] In this way, when no liquid is being dispensed, the bottle cap seals the outlet of the first valve core, and the entire bottle is sealed. When the liquid flows to the first valve core, the dispensing head moves relative to the bottle cap in the first positive flow direction, and the first valve core connects with the inside of the bottle, allowing the liquid to flow into the bottle.

[0017] In some embodiments, the injection head includes a column and a movable stage coaxially connected, the diameter of the movable stage being larger than the diameter of the column, and the first valve core being disposed on the column; the column is provided with a first guide hole along a second direction on the side facing the movable stage, and the first valve core is in communication with the first guide hole;

[0018] The bottle cap is provided with a guide hole and a connecting hole in sequence along the first positive flow direction, and the diameter of the guide hole is smaller than the diameter of the connecting hole;

[0019] At least a portion of the column is located within the guide hole, and the column located within the guide hole is in close contact with the inner wall of the guide hole; the movable stage is located within the connecting hole.

[0020] When the liquid does not flow into the first valve core, the side of the moving platform facing the column abuts against the top wall of the connecting hole, and the inner wall of the guide hole seals the outlet of the first guide hole;

[0021] When liquid flows into the first valve core, the column drives the movable platform to move along the first positive flow direction. The first guide hole communicates with the interior of the bottle body, and the second direction intersects with the first positive flow direction. Thus, when no liquid is being injected, the movable platform abuts against the top wall of the connecting hole, the inner wall of the guide hole seals the outlet of the first guide hole, and the column is in close contact with the inner wall of the guide hole, resulting in a completely sealed bottle body. When the liquid flows to the first valve core, the column and the movable platform move synchronously along the first positive flow direction. At this time, the first guide hole communicates with the interior of the bottle body, allowing the liquid to flow into the bottle body through the first valve core and the first guide hole.

[0022] In some embodiments, the injection bottle further includes an elastic element;

[0023] The bottle cap has an annular protrusion on the side opposite to the bottle body, and the annular protrusion is located around the guide hole;

[0024] The end of the column away from the moving platform is provided with a protrusion along the second direction; the diameter of the protrusion along the second direction is larger than the inner diameter of the annular protrusion.

[0025] With the column extending through the interior of the annular protrusion into the guide hole, the elastic element is fitted onto the annular protrusion, with one end of the elastic element abutting against the bottle cap and the other end abutting against the protrusion. Thus, when the elastic element is in its initial state, it extends, causing the column to move in the opposite direction to the first positive flow direction. At this time, the moving platform abuts against the top wall of the connecting hole, the inner wall of the guide hole seals the outlet of the first guide hole, and simultaneously, the column is tightly pressed against the inner wall of the guide hole, resulting in a completely sealed bottle.

[0026] When the elastic element is compressed, the column and the moving platform move synchronously along the first positive flow direction. At this time, the first guide hole is connected to the inside of the bottle, and the liquid can flow into the bottle through the first valve core and the first guide hole. After the liquid filling is completed, the pressure acting on the elastic element disappears, and the elastic element returns to its initial state, and the bottle is completely sealed. In this way, liquid spillage can be prevented when the bottle is shaken.

[0027] In some embodiments, an outer cover is provided circumferentially around the edge of the protrusion facing one end of the column, and the outer cover, the protrusion, and the column together form a groove;

[0028] The elastic element is at least partially located within the groove. This protects the elastic element from liquid spillage and corrosion.

[0029] In some embodiments, the elastic element is a variable pitch spring. Since a variable pitch spring can absorb vibrations and mitigate impacts, this allows the column to remain stably positioned on the bottle cap.

[0030] In some embodiments, the diameter of the movable stage is equal to the inner diameter of the connecting hole. In this way, when the elastic element is in its initial state, it extends, causing the column to move in the opposite direction to the first positive flow direction. At this time, the movable stage abuts against the top wall of the connecting hole, the inner wall of the guide hole seals the outlet of the first guide hole, and simultaneously, the column and the inner wall of the guide hole are in close contact, as are the movable stage and the inner wall of the connecting hole, resulting in better overall sealing performance of the bottle.

[0031] In some embodiments, the inner wall of the connecting hole is provided with a radially recessed portion. This allows the outlet of the first guide hole to communicate with the bottle body through the recessed portion simply by disengaging the moving stage at least partially from the connecting hole.

[0032] In some embodiments, the axial height of the recess is equal to the axial depth of the connecting hole;

[0033] And / or, the radial cross-section of the recessed portion is a fan-shaped structure.

[0034] In some embodiments, the first valve core is a Tesla valve. Because a Tesla valve allows fluid (gas or liquid) to flow smoothly only in a first forward flow direction, when liquid flows into the Tesla valve from the outside, it flows in the first forward flow direction. At this time, when the gas evaporating from the liquid attempts to flow in the opposite direction from the first forward flow direction, due to the internal structure of the Tesla valve, the evaporating gas is obstructed in the reverse flow, resulting in flow obstruction and increased pressure. This prevents the evaporating gas from continuing to flow in the opposite direction, thereby avoiding liquid evaporation during injection.

[0035] In some embodiments, the Tesla valve includes at least one main flow channel and at least one annular bypass flow channel;

[0036] One end of the main channel is connected to the outside, and the other end is connected to the first guide hole. Both ends of the annular bypass channel are connected to the main channel.

[0037] In some embodiments, the width of the main flow channel is 1mm-1.5mm, and / or the width of the annular bypass flow channel is 1mm-1.5mm. This allows the lithium salt powder in the liquid electrolyte to flow more effectively within the flow channels of the Tesla valve when configuring the liquid electrolyte.

[0038] In some embodiments, a liquid injection inlet is provided at the end of the column opposite to the movable platform, and the liquid injection inlet is connected to the Tesla valve. This facilitates the injection of liquid into the Tesla valve through the liquid injection inlet.

[0039] In some embodiments, the injection bottle further includes a second valve core, the second valve core having a second forward flow direction, the second forward flow being from the inside of the bottle to the outside;

[0040] The second valve core is disposed on the column, and the column is provided with a second guide hole along the second direction on the side facing the moving platform. The second valve core is connected to the second guide hole.

[0041] When the liquid does not flow into the first valve core, the side of the moving platform facing the column abuts against the top wall of 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.

[0042] When liquid flows into the first valve core, the column drives the moving platform to move along the first positive flow direction, the outlet of the first guide hole communicates with the inner recess on the connecting hole, and the inner wall of the connecting hole seals the inlet of the second guide hole.

[0043] When the column rotates at a preset angle relative to the guide hole, the inlet of the second guide hole communicates with the concave portion, and the inner wall of the connecting hole seals the outlet of the first guide hole. Thus, once the liquid is prepared in the bottle, simply rotating the column allows the second guide hole to communicate with the concave portion. At this point, the inner wall of the connecting hole seals the outlet of the first guide hole, and the prepared liquid can then be discharged from the bottle through the second valve core.

[0044] In some embodiments, the second valve core is a Tesla valve.

[0045] In some embodiments, the structure of the second valve core is the same as that of the first valve core. This facilitates the manufacturing of the integral injection head.

[0046] In some embodiments, the end of the column facing away from the moving platform is provided with a liquid outlet, and the second valve core is connected to the liquid outlet. This facilitates the flow of the prepared liquid from the second valve core and the liquid outlet to the outside.

[0047] In some embodiments, a baffle is provided at the end of the column opposite to the movable platform to separate the liquid outlet from the liquid inlet on the column. This effectively separates the liquid outlet and the liquid inlet, preventing mixing during liquid pouring or injection.

[0048] In some embodiments, the bottle body and the bottle cap are detachably connected. This makes it easy to remove the bottle cap from the bottle body.

[0049] In some embodiments, the dispensing bottle further includes a sealing ring disposed between the bottle body and the bottle cap. This improves the seal between the bottle cap and the bottle body.

[0050] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0051] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the embodiments described below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0052] Figure 1 This is a schematic diagram of the structure of the injection bottle provided in some embodiments of this application;

[0053] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0054] Figure 3 A schematic diagram of a first valve core provided for some embodiments of this application;

[0055] Figure 4 Cross-sectional views of the injection head provided in some embodiments of this application;

[0056] Figure 5 This is a schematic diagram of the structure of the injection head provided in some embodiments of this application;

[0057] Figure 6 A schematic diagram of a bottle cap provided for some embodiments of this application;

[0058] Figure 7 A schematic diagram of the dispensing head and bottle cap in their initial state, provided for some embodiments of this application;

[0059] Figure 8 A schematic diagram of the dispensing head and bottle cap in a compressed state, provided for some embodiments of this application;

[0060] Figure 9 A schematic diagram of a bottle cap provided for some embodiments of this application from another perspective;

[0061] Figure 10 A schematic diagram of an injection head provided for some embodiments of this application from another perspective;

[0062] Figure 11 for Figure 9 A bottom view;

[0063] Figure 12 A schematic diagram of the dispensing head and bottle cap after rotation, provided for some embodiments of this application;

[0064] Figure 13 A schematic diagram of a second valve core provided for some embodiments of this application;

[0065] Figure 14 This is a schematic diagram of the structure of the injection bottle provided in some embodiments of this application;

[0066] Figure 15 for Figure 14 Exploded view.

[0067] The reference numerals in the detailed embodiments are as follows:

[0068] 10. Bottle body;

[0069] 11. Bottle body;

[0070] 12. Bottle cap; 121. Connecting hole; 122. Recessed part; 123. Guide hole; 124. Top wall; 125. Annular protrusion;

[0071] 13. Injection head; 131. Column; 1311. Injection inlet; 1312. Outlet; 1313. First valve core; 13131. Main flow channel; 13132. Annular bypass flow channel; 1314. Second valve core; 132. Moving stage; 133. First guide hole; 134. Second guide hole; 135. Baffle; 136. Protrusion; 137. Outer cover; 138. Groove;

[0072] 14. Elastic components. Detailed Implementation

[0073] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0074] Unless otherwise defined, 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 application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0075] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0076] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0077] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0078] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0079] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0080] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0081] With the continuous development of lithium-ion battery technology, research on electrolytes has received increasing attention. Liquid electrolytes, composed of lithium salts, organic solvents, and functional additives in specific proportions, are often referred to as the "blood" of lithium-ion batteries. During the preparation of liquid electrolytes, a certain proportion of organic solvents and functional additives needs to be added to the injection bottle to improve battery performance.

[0082] In related technologies, when organic solvents are added to the injection bottle, the content of organic solvents cannot be accurately measured because they are volatile, which leads to inaccurate liquid electrolyte formulation ratios.

[0083] Based on the above considerations, in order to solve the problem of easy evaporation of liquid electrolytes during the preparation of the injection bottle, an injection bottle is designed, including: a bottle body and an injection head, wherein the injection head is disposed in the bottle body, and a first valve core is disposed on the injection head. One end of the first valve core is connected to the outside and the other end is connected to the inside of the bottle body; the first valve core has a first positive flow direction, which 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 evaporated by the liquid is blocked from flowing in the opposite direction of the first positive flow direction.

[0084] When in use, as the liquid flows from the first valve core into the bottle along the first positive flow direction, the gas evaporating from the liquid is blocked from flowing in the opposite direction of the first positive flow direction. In this way, when the liquid flows from the external channel into the bottle, the gas evaporating from the liquid can be suppressed by the action of the first valve core, thus preventing liquid evaporation and improving the accuracy of the liquid electrolyte formula ratio.

[0085] According to some embodiments of this application, Figure 1 This is a schematic diagram of the injection head structure in this application. Figure 2 for Figure 1 Enlarged diagram of point A in the middle. Figure 3 This is a schematic diagram of the structure of the first valve core in this application. Figure 1 and combined Figure 2 , Figure 3 As shown, this application provides a liquid injection bottle, which includes a bottle body 10 and an injection head 13. The injection head 13 is disposed on the bottle body 10, and a first valve core 1313 is disposed on the injection head 13. One end of the first valve core 1313 is connected to the outside, and the other end is connected to the inside of the bottle body 10. The first valve core 1313 has a first positive flow direction, which is the direction from the outside to the inside of the bottle body 10. When the liquid flows from the first valve core 1313 into the bottle body 10, the gas evaporated by the liquid is blocked from flowing in the opposite direction of the first positive flow direction.

[0086] In this embodiment, the first forward flow direction is as follows: Figure 3 The X-axis direction in the diagram refers to the direction from top to bottom.

[0087] In this embodiment, the bottle body 10 can be square, circular, or other irregular shapes. The specific shape can be determined according to the actual situation, and this embodiment does not limit it.

[0088] In this embodiment, the injection head 13 can be connected to the bottle body 10 by a threaded connection, or the injection head 13 can be snapped onto the top of the bottle body 10. The specific configuration can be determined according to the actual situation, and this embodiment does not limit this.

[0089] In this embodiment, the first valve core 1313 is located inside the injection head 13. One end of the first valve core 1313 is connected to the outside, and the other end is connected to the inside of the bottle body 10. Liquid can flow from the outside through the first valve core 1313 into the bottle body 10.

[0090] In use, when the liquid flows from the first valve core 1313 into the bottle 10 along the first positive flow direction, the gas evaporating from the liquid is blocked from flowing in the opposite direction of the first positive flow direction. In this way, when the liquid flows from the external channel into the bottle 10, the gas evaporating from the liquid can be suppressed under the action of the first valve core 1313, thus preventing the liquid from evaporating. This allows for accurate measurement of the liquid content flowing into the bottle 10, thereby improving the accuracy of the liquid electrolyte formula ratio.

[0091] According to some embodiments of this application, such as Figure 1 As shown, the bottle body 10 includes a bottle body 11 and a bottle cap 12. The side of the bottle body 11 facing the bottle cap 12 has an open structure. The bottle cap 12 is disposed at the opening of the bottle body 11 and is used to seal the bottle body 11. The injection head 13 is disposed on the bottle cap 12. The first valve core 1313 communicates with the inside of the bottle body 11 through the bottle cap 12.

[0092] In this embodiment, the interior of the bottle body 11 forms a liquid storage cavity, and the side of the bottle body 11 facing the bottle cap 12 has an open structure. The bottle cap 12 and the bottle body 11 can be directly engaged by threads, or the bottle cap 12 can be snapped into the opening of the bottle body 11. The specific method can be determined according to the actual situation, and this embodiment of the specification does not limit this.

[0093] In this embodiment, the injection head 13 can be threaded into the bottle cap 12, or the injection head 13 and the bottle cap 12 can be integrally formed. The specific configuration can be determined according to the actual situation, and this embodiment does not limit the specific configuration.

[0094] Since the cap 12 is connected to the opening of the bottle body 11, after the liquid flows from the first valve core 1313 and the cap 12 into the bottle body 11, the liquid can be poured out after the liquid electrolyte is prepared.

[0095] According to some embodiments of this application, such as Figure 1As shown, the injection head 13 is movably connected to the bottle cap 12, and the injection head 13 can move relative to the bottle cap 12 in the first positive flow direction; when the liquid does not flow into the first valve core 1313, the bottle cap 12 closes the outlet of the first valve core 1313; when the liquid flows into the first valve core 1313, the injection head 13 moves relative to the bottle cap 12 in the first positive flow direction, and the first valve core 1313 communicates with the inside of the bottle body 11.

[0096] In this embodiment, the injection head 13 and the bottle cap 12 can be connected by a shaft hole mating structure. The specific connection can be determined according to the actual situation, and this embodiment does not limit this.

[0097] In this embodiment, when no liquid is being injected, the bottle cap 12 closes the outlet of the first valve core 1313, and the bottle body 11 is in a sealed state. When the liquid flows to the first valve core 1313, the injection head 13 moves relative to the bottle cap 12 in the first positive flow direction, and the first valve core 1313 communicates with the inside of the bottle body 11, at which time the liquid can flow into the inside of the bottle body 11.

[0098] According to some embodiments of this application, such as Figure 4 and combined Figure 5 , Figure 6 , Figure 7 As shown, the dispensing head 13 includes a column 131 and a moving stage 132 coaxially connected, wherein the diameter of the moving stage 132 is larger than the diameter of the column 131, and a first valve core 1313 is disposed on the column 131; a first guide hole 133 is provided on the side of the column 131 facing the moving stage 132 along a second direction, and the first valve core 1313 communicates with the first guide hole 133; at the same time, the bottle cap 12 is provided with a guide hole 123 and a connecting hole 121 in sequence along the first positive flow direction, and the diameter of the guide hole 123 is smaller than the diameter of the connecting hole 121; at least a portion of the column 131 is located inside the guide hole 123, and the column 131 located inside the guide hole 123 is in close contact with the inner wall of the guide hole 123, and the moving stage 132 is located inside the connecting hole 121;

[0099] When the liquid does not flow into the first valve core 1313, the side of the moving platform 132 facing the column 131 abuts against the top wall 124 on the connecting hole 121, and the inner wall of the guide hole 123 seals the outlet of the first guide hole 133; when the liquid flows into the first valve core 1313, the column 131 drives the moving platform 132 to move along the first positive flow direction, and the first guide hole 133 communicates with the inside of the bottle body 11, wherein the second direction intersects with the first positive flow direction.

[0100] In this embodiment, as Figure 4As shown, the first positive flow direction is the X-axis direction, and the second direction is the Y-axis direction. The angle between the X-axis and the Y-axis can be 80°, 85°, 90°, etc. This embodiment is illustrated by taking the X-axis and Y-axis as being perpendicular to each other.

[0101] In this embodiment, the diameter of the column 131 is equal to the inner diameter of the guide hole 123. When the column 131 is at least partially located inside the guide hole 123, the side of the column 131 is in close contact with the inside of the guide hole 123. This can prevent the column 131 from having a gap with the guide hole 123, thereby preventing the liquid inside the bottle body 11 from evaporating from the gap.

[0102] In this embodiment, both the column 131 and the moving platform 132 are cylindrical structures. Of course, it can be understood that the column 131 and the moving platform 132 can also be polygonal structures. The specific structure can be determined according to the actual situation. This specification does not limit this embodiment.

[0103] refer to Figure 7 As shown, in the initial state, the liquid does not flow into the first valve core 1313. The side of the moving platform 132 facing the column 131 abuts against the top wall 124 on the connecting hole 121. The inner wall of the guide hole 123 seals the outlet of the first guide hole 133. At this time, although the first valve core 1313 is connected to the first guide hole 133, the first guide hole 133 cannot be connected to the inside of the bottle body 11, and the bottle body 11 is in a sealed state.

[0104] refer to Figure 8 As shown, when liquid flows into the first valve core 1313, the column 131 drives the moving platform 132 to move along the first positive flow direction. The moving platform 132 moves away from the top wall 124 and into the bottle body 11. At the same time, the inner wall of the guide hole 123 no longer seals the first guide hole 133. When the moving platform 132 is completely inside the bottle body 11, the first valve core 1313, the first guide hole 133, the connecting hole 121, and the interior of the bottle body 11 are connected in sequence. At this time, the liquid can flow into the interior of the bottle body 11 after passing through the first valve core 1313, the first guide hole 133, and the connecting hole 121.

[0105] According to some embodiments of this application, such as Figure 7 and combined Figure 8 , Figure 9 As shown, the injection bottle also includes an elastic element 14; the bottle cap 12 has an annular protrusion 125 on the side opposite to the bottle body 11, and the annular protrusion 125 is located around the guide hole 123.

[0106] The end of the column 131 away from the moving platform 132 is provided with a protrusion 136 along the second direction; the diameter of the protrusion 136 along the second direction is larger than the inner diameter of the annular protrusion 125.

[0107] With the column 131 extending into the guide hole 123 through the interior of the annular protrusion 125, the elastic member 14 is sleeved on the annular protrusion 125, and one end of the elastic member 14 abuts against the bottle cap 12, and the other end abuts against the protrusion 136.

[0108] The second direction in this embodiment can be referred to the above description, and will not be repeated here.

[0109] In this embodiment, the elastic element 14 can refer to something that can deform under the action of external force and return to its original shape after the external force is removed. The elastic element 14 can be elastically compressed in the X direction. The elastic element 14 can be made of metal or non-metal, such as leaf spring, coil spring, gas spring, rubber spring, etc. The specific material can be determined according to the actual situation. This embodiment does not limit this.

[0110] refer to Figure 7 As shown, when the elastic element 14 is in the initial state, the elastic element 14 is elongated. At this time, the vertical distance between the upper end of the annular protrusion 125 and the protrusion 136 is M. Under the reaction force of the elastic element 14, the column 131 moves in the opposite direction to the first positive flow direction. The moving platform 132 abuts against the top wall 124 of the connecting hole 121. The inner wall of the guide hole 123 seals the outlet of the first guide hole 133. At the same time, the column 131 is in close contact with the inner wall of the guide hole 123, and the bottle body 11 is in a sealed state.

[0111] refer to Figure 8 As shown, when the column 131 is subjected to downward pressure along the X direction, since there is a vertical distance M between the upper end of the annular protrusion 125 and the protrusion 136, the protrusion 136 can move downward relative to the annular protrusion 125. Since one end of the elastic member 14 abuts against the bottle cap 12 and the other end abuts against the protrusion 136, the elastic member 14 is in a compressed state under the action of the protrusion 136. The protrusion 136 drives the column 131 and the moving platform 132 to move synchronously along the first positive flow direction. At this time, the inner wall of the guide hole 123 no longer seals the first guide hole 133. When the moving platform 132 is completely inside the bottle body 11, the first valve core 1313, the first guide hole 133, the connecting hole 121 and the interior of the bottle body 11 are connected in sequence. At this time, the liquid can flow into the interior of the bottle body 11 after passing through the first valve core 1313, the first guide hole 133, and the connecting hole 121.

[0112] After the liquid injection is completed, the pressure acting on the elastic element 14 disappears, and the elastic element 14 returns to its initial state, and the bottle body 11 is completely sealed. In this way, liquid leakage can be prevented when the bottle body 11 is shaken.

[0113] According to some embodiments of this application, such as Figure 10 and combined Figure 7 As shown, an outer cover 137 is provided around the edge of the protrusion 136 facing the end of the column 131. The outer cover 137, the protrusion 136 and the column 131 together form a groove 138; at the same time, the elastic member 14 is at least partially located in the groove 138.

[0114] In this embodiment, the outer cover 137 and the protrusion 136 can be integrally formed, or the outer cover 137 can be welded onto the protrusion 136. The specific details can be determined according to the actual situation, and this specification does not limit this embodiment.

[0115] refer to Figure 7 As shown, when the elastic member 14 is in the initial state, the elastic member 14 is extended. At this time, the vertical distance between the upper end of the annular protrusion 125 and the protrusion 136 is M, and the vertical distance between the lower end of the outer cover 137 and the bottle cap 12 is L. In this way, the outer cover 137 can move vertically relative to the surface of the bottle cap 12. Since the outer cover 137 itself is set on the protrusion 136, it can be ensured that the protrusion 136 can move vertically relative to the surface of the bottle cap 12.

[0116] Since the elastic element 14 is at least partially located within the groove 138, liquid can be prevented from spilling onto the elastic element 14 and corroding it, under the protection of the outer cover 137.

[0117] According to some embodiments of this application, the elastic element 14 is a variable pitch spring, and the spring compression stroke of the variable pitch spring can be 2-3 mm. Since the variable pitch spring can be used to absorb vibration and mitigate impact, when the column 131 is connected to the bottle cap 12 through the elastic element 14, the column 131 can be stably positioned on the bottle cap 12.

[0118] It is understood that the elastic element 14 in this embodiment can also be a leaf spring, a compression spring, etc., and the specific type can be determined according to the actual situation. This specification does not limit this embodiment.

[0119] According to some embodiments of this application, reference is made to Figure 7 As shown, the diameter of the moving platform 132 is equal to the inner diameter of the connecting hole 121. Thus, when the elastic element 14 is in its initial state, it extends, causing the column 131 to move in the opposite direction to the first positive flow direction. At this time, the moving platform 132 abuts against the top wall 124 of the connecting hole 121, and the inner wall of the guide hole 123 seals the outlet of the first guide hole 133. Simultaneously, the column 131 is in close contact with the inner wall of the guide hole 123, and the moving platform 132 is in close contact with the inner wall of the connecting hole 121, thereby improving the overall sealing performance of the bottle body 11.

[0120] It is understood that the moving stage 132 in this embodiment may be slightly smaller than the inner diameter of the connecting hole 121. For example, the difference between the inner diameter of the connecting hole 121 and the diameter of the moving stage 132 is 1-3mm. The specific difference can be determined according to the actual situation. This embodiment of the specification does not limit this.

[0121] According to some embodiments of this application, such as Figure 6 and combined Figure 7 , Figure 8 , Figure 11 As shown, the inner wall of the connecting hole 121 is provided with a radially recessed portion 122.

[0122] refer to Figure 7 As shown, when the elastic element 14 is in the initial state, the liquid does not flow into the first valve core 1313. The side of the moving platform 132 facing the column 131 abuts against the top wall 124 on the connecting hole 121. The inner wall of the guide hole 123 seals the outlet of the first guide hole 133. At this time, although the first valve core 1313 is connected to the first guide hole 133, the first guide hole 133 cannot be connected to the concave part 122, and the bottle body 11 is in a sealed state.

[0123] refer to Figure 8 As shown, when the elastic element 14 is in a compressed state, the column 131 drives the moving platform 132 to move along the first positive flow direction. The moving platform 132 moves away from the top wall 124 and into the bottle body 11. At the same time, the inner wall of the guide hole 123 no longer seals the first guide hole 133. The first guide hole 133 is connected to the concave portion 122, so that external liquid can flow into the bottle body 11 from the concave portion 122.

[0124] According to some embodiments of this application, reference is made to Figure 7 As shown, the axial height of the recess 122 is equal to the axial depth of the connecting hole 121.

[0125] In this way, when the moving stage 132 moves toward the bottle body 11, no matter how far the moving stage 132 moves axially, as long as the moving stage 132 separates from the top wall 124, reference Figure 8 As shown, the first guide hole 133 will connect with the concave portion 122, thereby facilitating the flow of liquid into the bottle body 11.

[0126] According to some embodiments of this application, reference is made to Figure 11 As shown, the radial cross-section of the recessed portion 122 is a fan-shaped structure. This facilitates the integral processing and manufacturing of the bottle cap 12. Of course, it is understood that the recessed portion 122 can also be a square structure, etc., and the specific design can be determined according to the actual situation. This specification does not limit this embodiment.

[0127] In this embodiment, the angle of the fan-shaped structure can be 110°, 120°, 125°, etc. The radial distance between the concave portion 122 and the connecting hole 121 can be 2-3mm, and the axial depth of the concave portion 122 can be 3-5mm. The specific depth can be determined according to the actual situation, and this embodiment does not limit it.

[0128] According to some embodiments of this application, the first valve core 1313 is a Tesla valve.

[0129] Because a Tesla valve allows fluid (gas or liquid) to flow smoothly only in the first positive flow direction, when liquid flows into the Tesla valve from the outside, it flows in that direction. When the vaporized gas attempts to flow in the opposite direction, the Tesla valve's internal structure obstructs this flow, increasing pressure and preventing further reverse flow. This, in turn, prevents liquid evaporation during injection.

[0130] According to some embodiments of this application, such as Figure 3 As shown, the Tesla valve includes at least one main flow channel 13131 and at least one annular bypass flow channel 13132, wherein one end of the main flow channel 13131 is connected to the outside and the other end is connected to the first guide hole 133, and both ends of the annular bypass flow channel 13132 are connected to the main flow channel 13131.

[0131] In this embodiment, reference Figure 3 As shown, the Tesla valve may include three main flow channels 13131 and three annular bypass flow channels 13132, and the whole is divided into three steps. The specific steps can be determined according to the actual situation. This specification does not limit this embodiment.

[0132] In this embodiment, the valve core of the Tesla valve can be in various structural forms such as spiral or alternating.

[0133] In this embodiment, the injection head 13 with a Tesla valve can be manufactured by additive manufacturing.

[0134] According to some embodiments of this application, the flow channel width of the main flow channel 13131 is 1mm-1.5mm, and / or the flow channel width of the annular bypass flow channel 13132 is 1mm-1.5mm.

[0135] In this embodiment, the fan-shaped angle formed by the annular bypass channel 13132 can be 120°, 130°, etc.

[0136] Since the width of the main channel 13131 is 1mm-1.5mm and the width of the annular bypass channel 13132 is 1mm-1.5mm, the lithium salt powder in the liquid electrolyte can flow better in the channel of the Tesla valve when the liquid electrolyte is configured.

[0137] According to some embodiments of this application, such as Figure 7 or Figure 8 As shown, a liquid injection inlet 1311 is provided at the end of the column 131 facing away from the moving platform 132, and the liquid injection inlet 1311 is connected to the Tesla valve. This facilitates the injection of liquid into the Tesla valve through the liquid injection inlet 1311.

[0138] According to some embodiments of this application, such as Figure 12 and combined Figure 13 As shown, the injection bottle also includes a second valve core 1314, which has a second forward flow direction, which is from the inside of the bottle body 10 to the outside. The second valve core 1314 is disposed on the column 131, and a second guide hole 134 is provided on the side of the column 131 facing the moving stage 132 along the second direction. The second valve core 1314 is connected to the second guide hole 134.

[0139] When the liquid does not flow into the first valve core 1313, the side of the moving platform 132 facing the column 131 abuts against the top wall 124 on the connecting hole 121, and the inner wall of the guide hole 123 seals the outlet of the first guide hole 133 and the inlet of the second guide hole 134; when the liquid flows into the first valve core 1313, the column 131 drives the moving platform 132 to move along the first positive flow direction, and the outlet of the first guide hole 133 communicates with the recess 122 on the connecting hole 121, and the inner wall of the connecting hole 121 seals the inlet of the second guide hole 134; when the column 131 rotates at a preset angle relative to the guide hole 123, the inlet of the second guide hole 134 communicates with the recess 122, and the inner wall of the connecting hole 121 seals the outlet of the first guide hole 133.

[0140] The direction of the second forward flow direction in this embodiment can be referenced. Figure 13 The arrow direction is shown.

[0141] refer to Figure 7 As shown, when the elastic element 14 is in the initial state, and the liquid has not flowed into the first valve core 1313, the side of the moving platform 132 facing the column 131 abuts against the top wall 124 on the connecting hole 121. The inner wall of the guide hole 123 seals the outlet of the first guide hole 133 and the inlet of the second guide hole 134. At this time, neither the first guide hole 133 nor the second guide hole 134 is connected to the inside of the bottle body 11.

[0142] refer to Figure 8 As shown, when the elastic element 14 is in a compressed state, under the condition that the liquid flows into the first valve core 1313, the column 131 drives the moving platform 132 to move along the first positive flow direction. The outlet of the first guide hole 133 is connected to the concave portion 122 on the connecting hole 121. The inner wall of the connecting hole 121 seals the inlet of the second guide hole 134. The liquid can flow from the outlet of the first guide hole 133 through the concave portion 122 into the interior of the bottle body 11.

[0143] Once the configuration is complete, rotate the injection head 13, as per the reference. Figure 12 As shown, at this time, the column 131 rotates at a preset angle relative to the guide hole 123, the inlet of the second guide hole 134 is connected to the concave part 122, and the inner wall of the connecting hole 121 seals the outlet of the first guide hole 133. At this time, the liquid in the bottle body 11 can be conveniently poured out through the concave part 122 and the second guide hole 134.

[0144] According to some embodiments of this application, the second valve core 1314 is a Tesla valve. The function and effect of this Tesla valve can be referred to the above description, and will not be repeated here.

[0145] Since the second valve core 1314 is also a Tesla valve, and the Tesla valve itself has a one-way flow capability, air can be prevented from flowing into the bottle body 11 and coming into contact with the prepared liquid when pouring liquid.

[0146] According to some embodiments of this application, the structure of the second valve core 1314 is the same as that of the first valve core 1313. This facilitates the manufacturing of the integral injection head 13.

[0147] According to some embodiments of this application, such as Figure 12 As shown, a liquid outlet 1312 is provided at the end of the column 131 facing away from the moving platform 132, and the second valve core 1314 is connected to the liquid outlet 1312. In this way, the prepared liquid can flow to the outside from the second valve core 1314 and the liquid outlet 1312.

[0148] According to some embodiments of this application, such as Figure 12 As shown, a baffle 135 is provided at one end of the column 131 away from the moving platform 132 to separate the liquid outlet 1312 and the liquid inlet 1311 on the column 131.

[0149] In this embodiment, the baffle 135 can be integrally formed with the column 131, or the baffle 135 can be snapped onto the column 131. The specific method can be determined according to the actual situation, and this embodiment does not limit this.

[0150] Since the baffle 135 can separate the liquid outlet 1312 and the liquid inlet 1311, it can prevent liquid from flowing into the liquid outlet 1312 during liquid injection, and at the same time, it can prevent liquid from flowing into the liquid inlet 1311 during liquid pouring.

[0151] According to some embodiments of this application, such as Figure 14 and combined Figure 15 As shown, the bottle body 11 and the bottle cap 12 are detachably connected.

[0152] In this embodiment, the bottle body 11 and the bottle cap 12 can be connected together by a threaded connection, or the bottle cap 12 can be snapped onto the open end of the bottle body 11. The specific connection can be determined according to the actual situation, and this embodiment does not limit this.

[0153] Because the bottle body 11 and the bottle cap 12 are detachably connected, it is easy to remove the bottle cap 12 from the bottle body 11.

[0154] According to some embodiments of this application, the injection bottle also includes a sealing ring (not shown in the figure), which is disposed between the bottle body 11 and the bottle cap 12.

[0155] The sealing ring in this embodiment can be an O-ring, a U-ring, etc., and the specific type can be determined according to the actual situation. This specification does not limit this.

[0156] Because a sealing ring is provided between the bottle body 11 and the bottle cap 12, the sealing performance between the bottle cap 12 and the bottle body 11 can be improved when the bottle cap 12 is connected to the bottle body 11.

[0157] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A liquid injection bottle, characterized in that, include: Bottle body; The injection head is disposed on the bottle body, and the injection head is provided with a first valve core, which is configured to communicate with the outside and the bottle body; The first valve core has a first positive flow direction, which is from the outside to the inside of the bottle; When liquid flows from the first valve core into the bottle body, the gas evaporating from the liquid is prevented from flowing in the opposite direction to the first forward flow direction.

2. The injection bottle according to claim 1, characterized in that, The bottle body includes the bottle body and the bottle cap; The side of the bottle body facing the bottle cap has an opening structure, and the bottle cap is disposed at the opening to seal the bottle body; The injection head is disposed on the bottle cap, and the first valve core is connected to the inside of the bottle body through the bottle cap.

3. The injection bottle according to claim 2, characterized in that, The injection head is movably connected to the bottle cap, and the injection head can move relative to the bottle cap along the first positive flow direction.

4. The injection bottle according to claim 3, characterized in that, The injection head includes a column and a movable stage coaxially connected. The diameter of the movable stage is larger than the diameter of the column. The first valve core is disposed on the column. A first guide hole is provided on the side of the column facing the movable stage along a second direction. The first valve core communicates with the first guide hole. The bottle cap is provided with a guide hole and a connecting hole in sequence along the first positive flow direction, and the diameter of the guide hole is smaller than the diameter of the connecting hole; At least a portion of the column is located within the guide hole, and the column located within the guide hole is in close contact with the inner wall of the guide hole, while the moving platform is located within the connecting hole.

5. The injection bottle according to claim 4, characterized in that, The injection bottle also includes an elastic element; The bottle cap has an annular protrusion on the side opposite to the bottle body, and the annular protrusion is located around the guide hole; The end of the column away from the moving platform is provided with a protrusion along the second direction; the diameter of the protrusion along the second direction is larger than the inner diameter of the annular protrusion. With the column extending into the guide hole through the interior of the annular protrusion, the elastic element is sleeved on the annular protrusion, and one end of the elastic element abuts against the bottle cap, while the other end abuts against the protrusion.

6. The injection bottle according to claim 5, characterized in that, An outer cover is provided around the edge of the protrusion facing one end of the column, and the outer cover, the protrusion, and the column together form a groove. The elastic element is at least partially located within the groove.

7. The injection bottle according to claim 5, characterized in that, The elastic element is a variable pitch spring.

8. The injection bottle according to claim 4, characterized in that, The diameter of the moving stage is equal to the inner diameter of the connecting hole.

9. The injection bottle according to claim 8, characterized in that, The inner wall of the connecting hole is provided with a radially recessed portion.

10. The injection bottle according to claim 9, characterized in that, The axial height of the recess is equal to the axial depth of the connecting hole; And / or, the radial cross-section of the recessed portion is a fan-shaped structure.

11. The injection bottle according to any one of claims 4 to 10, characterized in that, The first valve core is a Tesla valve.

12. The injection bottle according to claim 11, characterized in that, The Tesla valve includes at least one main flow channel and at least one annular bypass flow channel; One end of the main channel is connected to the outside, and the other end is connected to the first guide hole. Both ends of the annular bypass channel are connected to the main channel.

13. The injection bottle according to claim 12, characterized in that, The width of the main flow channel is 1mm-1.5mm; And / or, the width of the annular bypass channel is 1mm-1.5mm.

14. The injection bottle according to claim 11, characterized in that, The end of the column facing away from the moving platform is provided with a liquid injection inlet, which is connected to the Tesla valve.

15. The injection bottle according to any one of claims 4 to 10, characterized in that, The injection bottle also includes a second valve core, which has a second forward flow direction, the second forward flow being from the inside of the bottle to the outside; The second valve core is disposed on the column, and the column is provided with a second guide hole along the second direction on the side facing the moving platform. The second valve core is connected to the second guide hole. When the liquid does not flow into the first valve core, the side of the moving platform facing the column abuts against the top wall of 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. When liquid flows into the first valve core, the column drives the moving platform to move along the first positive flow direction, the outlet of the first guide hole communicates with the inner recess on the connecting hole, and the inner wall of the connecting hole seals the inlet of the second guide hole. When the column rotates at a preset angle relative to the guide hole, the inlet of the second guide hole communicates with the concave portion, and the inner wall of the connecting hole seals the outlet of the first guide hole.

16. The injection bottle according to claim 15, characterized in that, The second valve core is a Tesla valve.

17. The injection bottle according to claim 15, characterized in that, The structure of the second valve core is the same as that of the first valve core.

18. The injection bottle according to claim 17, characterized in that, The end of the column facing away from the moving platform is provided with a liquid outlet, and the second valve core is connected to the liquid outlet.

19. The injection bottle according to claim 18, characterized in that, The end of the column facing away from the moving platform is provided with a baffle to block the liquid outlet and the liquid inlet on the column.

20. The injection bottle according to claim 2, characterized in that, The bottle body and the bottle cap are detachably connected.

21. The injection bottle according to claim 2 or 20, characterized in that, The injection bottle also includes a sealing ring, which is disposed between the bottle body and the bottle cap.

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