CN117450036A - A high-speed liquid injection pump for annotating liquid to battery - Google Patents

Abstract

The invention provides a high-speed liquid injection pump for injecting liquid into a battery, which comprises the following components: the liquid injection module, the steering transmission assembly and the driving piece; the liquid injection module is provided with a liquid inlet, a liquid injection port, at least two flow guide cavities and at least two piston units; the liquid inlet, the flow guiding cavity and the liquid injection port are sequentially connected and communicated with each other; the piston unit is communicated with the flow guide cavity; the driving piece is connected with the steering transmission assembly, the steering transmission assembly is connected with at least two piston units, and the driving piece drives the at least two piston units to alternately reciprocate at different stages of a return stroke through the steering transmission assembly so that liquid flows from the liquid inlet, the flow guide cavity and the liquid injection port in sequence to finish liquid injection. The driving piece is connected with at least two piston units, and the driving piece alternately drives the at least two piston units to pump through the transmission steering assembly in one return stroke, so that the interval time of single liquid injection is shortened, the liquid injection efficiency is further improved, and the accurate control of the single liquid injection amount is realized.

Description

A high-speed injection pump for injecting liquid into batteries

Technical field

The present invention relates to the technical field of lithium batteries, and in particular to a high-speed injection pump for injecting liquid into the battery.

Background technique

Battery injection technology is designed to improve battery performance and life and reduce potential operational and environmental risks. Modern batteries also usually adopt semi-enclosed or fully enclosed designs, which require regular battery injection. With the continuous expansion of battery application fields, such as new energy vehicles, energy storage systems, etc., battery injection technology has received more and more attention. focus on.

In the existing technology, the battery injection efficiency of a single liquid injection pump itself is often low, cannot keep up with the requirements of industrial upgrading and social development, and is increasingly unable to meet the needs of actual production.

Therefore, there is currently a need for a solution to solve the above problems.

Contents of the invention

In view of the deficiencies in the prior art, the present invention proposes a high-speed liquid injection pump for injecting liquid into the battery. Systematically arranging the liquid injection time and liquid injection interval can improve the efficiency of battery liquid injection.

In order to solve the above technical problems, the technical solution of the present invention is:

A high-speed injection pump for injecting liquid into a battery, including: a liquid injection module, a steering transmission assembly and a driving part;

The liquid injection module is provided with a liquid inlet, a liquid injection port, at least two diversion chambers, and at least two piston units; the liquid inlet, the diversion chamber, and the liquid injection port are sequentially Connected and interconnected; the piston unit is connected with the flow guide chamber;

The driving member is connected to the steering transmission assembly, and the steering transmission assembly is connected to at least two of the piston units,

Through the steering transmission assembly, the driving member drives at least two of the piston units to alternately reciprocate at different stages of a return stroke, so that the liquid flows from the liquid inlet, the guide chamber, to the The liquid injection port flows sequentially to complete the liquid injection.

In a specific embodiment, the steering transmission assembly includes a crankshaft, a cam and a drive rod;

The driving member drives the crankshaft to rotate the crankshaft along the axial direction. Different cams on the crankshaft drive different driving rods, and different driving rods connect different pistons. unit; different piston units communicate with different flow guide chambers.

In a specific embodiment, at least two of the cams are spaced apart along the axial direction of the crankshaft; and all of the cams are evenly distributed in the circumferential direction of the crankshaft;

Different cams drive different piston units through different driving rods, so that different piston units are in different processes.

In a specific embodiment, a limiting component is also provided;

The limiting assembly includes: a limiting block provided on the driving rod, and a limiting sleeve matching the limiting block;

The shape of the limiting sleeve matches the driving rod to limit the movement direction of the driving rod.

In a specific embodiment, a bearing is provided at the connection between the drive rod and the cam;

The curved surfaces of the bearings are respectively in contact with the curved surfaces of the cam, reducing the friction coefficient between the drive rod and the cam;

A lubrication component is also provided; the lubrication component includes a lubricant injection guide shaft, a lubricant injection block and a lubricant injection nozzle;

The lubricating liquid injection nozzle is provided on the lubricating liquid injection block, the lubricating liquid injection block is connected to the lubricating liquid injection guide shaft, and the lubricating liquid injection guide shaft is connected to the bearing to form a lubricating liquid injection passage.

In a specific embodiment, a first one-way valve and a second one-way valve are provided in each of the diversion chambers;

The liquid inlet directions of the first one-way valve and the second one-way valve are the same. The first one-way valve is located at one end of the diversion chamber close to the liquid inlet. The second one-way valve Located at one end of the flow guide chamber close to the liquid injection port.

In a specific embodiment, the volume of the first one-way valve in the same diversion chamber is larger than the volume of the second one-way valve.

In a specific embodiment, the liquid injection module further includes a first shunt module, a second shunt module and a third shunt module;

The liquid inlet, the first shunt module, the second shunt module, the third shunt module, and the liquid injection port are connected in one direction in sequence, and the second shunt module is connected to the piston unit;

A seal is provided at the connection between any two of the first shunt module, the second shunt module, the third shunt module, the liquid inlet, and the liquid injection port;

A filter screen is provided at the connection between the liquid inlet and each of the flow guide chambers and/or at the connection between the liquid injection port and each of the flow guide cavities.

In a specific embodiment, the piston unit includes a piston and a piston sleeve;

A seal is provided on the inner wall of the piston sleeve so that the piston and the piston sleeve form a relatively sealed space;

The driving rod is connected to the piston to drive the piston to reciprocate in the horizontal direction in the piston sleeve, so that a certain amount of the liquid flows from the liquid inlet, the diversion chamber, to the injection chamber. The liquid ports flow sequentially to complete the liquid injection.

In a specific embodiment, the steering transmission assembly is provided in the box;

The box is provided with a guide sleeve and a guide hole; the guide sleeve and the guide hole are arranged in the movement direction of the driving rod;

The centers of the guide sleeve, the guide hole and the driving rod are coaxially arranged.

Beneficial effects:

The invention is provided with a liquid injection module, a steering transmission assembly and a driving part; the liquid injection module is provided with at least two diversion cavities and at least two piston units, and the driving part is alternately driven through the transmission steering assembly within a return stroke. The pumping of at least two piston units shortens the interval between single injections, thereby improving the injection efficiency, achieving precise control of the single injection volume, and making the injection more stable.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and therefore do not It should be regarded as a limitation of the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is an exploded view of the liquid injection pump structure of the embodiment;

Figure 2 is a structural cross-sectional view of the liquid injection pump of the embodiment;

Figure 3 is a second structural cross-sectional view of the liquid injection pump according to the embodiment;

Figure 4 is a structural cross-sectional view of the liquid injection pump according to the embodiment;

Figure 5 is a three-dimensional structural diagram of the liquid injection pump of the embodiment;

Figure 6 is a second three-dimensional structural diagram of the liquid injection pump according to the embodiment;

Figure 7 is an exploded view of the liquid injection module structure of the embodiment;

Figure 8 is a structural cross-sectional view of the liquid injection module of the embodiment;

Figure 9 is a structural diagram of the steering transmission assembly of the embodiment.

Reference signs:

1-liquid injection module; 11-liquid inlet; 12-liquid injection port; 101-first shunt module; 102-second shunt module; 103-third shunt module; 131-diversion chamber; 1311-first One-way valve; 1312-second one-way valve; 14-piston unit; 141-piston; 142-piston sleeve; 143-seal; 2-steering transmission assembly; 21-crankshaft; 22-cam; 23-drive rod; 3-Driving part; 4-Limiting component; 41-Limiting block; 42-Limiting sleeve; 5-Lubrication component; 51-Lubrication injection guide shaft; 52-Lubrication injection block; 53-Lubrication injection nozzle; 6-box; 61-base; 62-side baffle; 63-upper cover plate; 7-bearing; 8-shaft connector; 91-guide hole; 92-guide sleeve.

Detailed ways

Various embodiments of the disclosure will be described more fully below. The present disclosure may have various embodiments, and adjustments and changes may be made therein. It should be understood, however, that there is no intention to limit the various embodiments of the present disclosure to the particular embodiments disclosed herein, but rather that the disclosure is to be construed to cover all embodiments that fall within the spirit and scope of the various embodiments of the present disclosure. All adjustments, equivalents and/or alternatives.

Hereinafter, the terms "comprise" or "may include" which may be used in various embodiments of the present disclosure indicate the presence of the disclosed functions, operations, or elements and do not limit the presence of one or more functions, operations, or elements. Increase. Furthermore, as used in various embodiments of the present disclosure, the terms "including," "having," and their cognates are intended only to represent specific features, numbers, steps, operations, elements, components, or combinations of the foregoing. and should not be understood as first excluding the presence of one or more other features, numbers, steps, operations, elements, components or combinations of the foregoing or adding one or more features, numbers, steps, operations, elements, components or the possibility of a combination of the foregoing.

In various embodiments of the present disclosure, the expression "or" or "at least one of A or/and B" includes any and all combinations of words listed simultaneously. For example, the expression "A or B" or "at least one of A or/and B" may include A, may include B, or may include both A and B.

Expressions (such as “first”, “second”, etc.) used in various embodiments of the present disclosure may modify various constituent elements in the various embodiments, but may not limit the corresponding constituent elements. For example, the above statements do not limit the order and/or importance of the elements described. The above expressions are only for the purpose of distinguishing one element from other elements. For example, a first user device and a second user device indicate different user devices, although both are user devices. For example, a first element could be termed a second element, and likewise a second element could be termed a first element, without departing from the scope of various embodiments of the disclosure.

It should be noted that if one constituent element is described as being "connected" to another constituent element, the first constituent element may be directly connected to the second constituent element, and a "connection" may be made between the first constituent element and the second constituent element. "The third component. In contrast, when one component is "directly connected" to another component, it will be understood that there is no third component between the first component and the second component.

The term "user" used in various embodiments of the present disclosure may refer to a person using an electronic device or a device using the electronic device (eg, an artificial intelligence electronic device).

The terminology used in the various embodiments of the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the various embodiments of the present disclosure. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of this disclosure belong. Said terms (such as terms defined in commonly used dictionaries) will be interpreted to have the same meaning as the contextual meaning in the relevant technical field and will not be interpreted as having an idealized meaning or an overly formal meaning, Unless otherwise expressly defined in various embodiments of the present disclosure.

Example

An embodiment of the present invention provides a high-speed injection pump for injecting liquid into a battery, as shown in Figures 1 to 6, including: a liquid injection module 1, a steering transmission assembly 2 and a driving member 3;

As shown in Figures 3, 7 and 8, the liquid injection module 1 is provided with a liquid inlet 11, a liquid injection port 12, at least two diversion chambers 131, and at least two piston units 14;

Among them, the liquid inlet 11, the flow guide chamber 131, and the liquid injection port 12 are connected in sequence and with each other; the piston unit 14 is connected with the flow guide cavity 131;

The driving member 3 is connected to the steering transmission assembly 2, and the steering transmission assembly 2 is connected to at least two piston units 14. Through the steering transmission assembly 2, the driving member 3 drives the pistons 141 in at least two piston units 14 at different stages of a return stroke. The reciprocating motion causes the liquid to flow sequentially from the liquid inlet 11, the diversion chamber 131, and the liquid injection port 12 to complete the liquid injection.

Specifically, in this embodiment, the driving member 3 is a stepper motor. Of course, the specific structure of the driving member 3 is not limited as long as it can provide driving power for the piston unit 14 .

The above-mentioned liquid is the battery injection liquid, and the common ones are electrolyte (sulfuric acid solution) or distilled water.

Further, at least two flow guide chambers 131 are provided in the liquid injection module 1; the liquid inlet 11 is connected to one end of each flow guide cavity 131; the liquid injection port 12 is connected to the other end of each flow guide cavity 131;

At least two includes two, three or more;

As shown in Figure 9, the steering transmission assembly 2 includes a crankshaft 21 and a drive rod 23; the driving member 3 drives the crankshaft 21 to rotate the crankshaft 21 along the axial direction, and different cams 22 on the crankshaft 21 drive different drive rods 23. Different drive rods 23 are connected to different piston units 14; different piston units 14 are connected to different flow guide chambers 131.

Preferably, at least two cams 22 are arranged sequentially along the axial direction of the crankshaft 21; and all cams 22 are evenly distributed in the circumferential direction of the crankshaft 21;

So that different cams 22 drive different piston units 14 through different driving rods 23, and the different piston units 14 are in different processes.

Specifically, in this embodiment, at least two guide cavities 131 arranged in sequence from top to bottom are provided in the liquid injection module 1; at least two cams 22 arranged in sequence from top to bottom are staggeredly arranged on the crankshaft. On the axis of 21, all cams 22 have different orientations.

With the above design, without increasing the power of the driving part 3, the driving part 3 can drive at least two piston units 14 to periodically alternately reciprocate at different stages of a return stroke, and alternately drive the injection liquid through different diversion chambers 131 ; This further shortens the interval between single pumping of the piston unit 14 and improves the overall injection efficiency of the injection pump.

Of course, the orientation of the cams 22 can be the same, which can also improve the overall injection efficiency. However, the power requirements for the injection pump driver 3 have increased, and it is difficult to accurately control a single injection.

Preferably, the volume of each flow guide chamber 131 is the same, the size of each piston unit 14 is the same, and the shape of each cam 22 is the same;

The above design facilitates narrowing the differences between different diversion chambers 131, piston units 14, and cams 22, making it easier to better control the amount of liquid pumped each time and the injection speed, and achieve precise control of each liquid injection;

Of course, this solution does not place specific restrictions on whether the volume of each flow guide chamber 131, the size of each piston unit 14, and the shape of each cam 22 are the same. The cam 22 has different shapes and can also be adjusted to improve the liquid injection efficiency.

The piston unit 14 and the guide chamber 131 are arranged correspondingly in position distribution, and the number is the same; the cam 22 and the piston unit 14 are arranged in position distribution correspondingly, and the number is the same;

Specifically, in this embodiment, the number of flow guide chambers 131 is set to three, and at the same time, the number of piston units 14 and cams 22 is also set to three correspondingly;

And the position of each piston unit 14 corresponds to the position of each guide chamber 131 , and the position of each cam 22 corresponds to the position of each piston unit 14 , that is, each driving rod 23 can move on the corresponding cam 22 Under the influence of , the piston unit 14 is driven so that the liquid passes through the corresponding guide chamber 131;

It can be understood that there is no restriction on the number of the guide chambers 131, the number of the piston units 14, and the number of the cams 22. The numbers of the guide chambers 131, the piston units 14, and the cams 22 only need to correspond to each other to facilitate the realization of the functions. Can;

Of course, within a certain limit, the greater the number of supporting guide chambers 131, piston units 14, and cams 22, the more piston units 14 driven by the cam 22 through the driving rod 23 in one stroke of the driving member 3. The shorter the injection interval, the more conducive to improving the efficiency of the injection pump.

All cams 22 are evenly distributed in the circumferential direction of the crankshaft 21, that is, the circumferential angles between adjacent cams 22 are the same;

Specifically, in this embodiment, three cams 22 are provided, and the included angles between the crankshaft 21 as the center and the farthest edge of the outline of each cam 22 are the same;

In this embodiment, the circumferential angles of adjacent cams 22 are equally divided into 120 degrees, that is, the included angles between the crankshaft 21 as the center and the farthest edge of the outline of each adjacent cam 22 are all 120 degrees.

It can be understood that if four cams 22 are provided, the circumferential angles of adjacent cams 22 can be equally divided into 90 degrees; if five cams 22 are provided, the circumferential angles of adjacent cams 22 can be equally divided. Set to 72 degrees, and so on;

The horizontal distance between adjacent cams 22 is the same, which can make the interval time of each liquid injection relatively similar, the liquid injection process is smoother, and the amount of liquid injected each time is more uniform; it also helps to avoid mutual interference between the cams 22 .

Of course, the circumferential included angles between the cams 22 do not necessarily need to be set in equal parts, as long as there is a certain included angle between adjacent cams 22 .

Further, as shown in Figures 1 to 3, a limiting component 4 is also provided;

The limiting assembly 4 includes: a limiting block 41 provided on the driving rod 23, and a limiting sleeve 42 matching the limiting block 41;

The shape of the limiting sleeve 42 matches the driving rod 23 to limit the movement direction of the driving rod 23 .

Specifically, in this embodiment, two limit sleeves 42 are provided. The limit sleeves 42 are respectively provided on the left and right sides of the front baffle 62 of the box 6 , and the limit sleeves 42 on the left and right sides are symmetrically arranged. The limit sleeve 42 is provided with three grooves in sequence from top to bottom, and the shape of each groove matches the driving rod 23 to facilitate the passage of the driving rod 23; when the limit block 41 and the limit sleeve 42 cooperate with each other, the limit block 41 and the limit sleeve 42 cooperate with each other. 41 can reciprocate in the limiting sleeve 42, thereby limiting the movement of the driving rod 23.

The setting of the limiting component 4 can, on the one hand, make the driving rod 23 move within a prescribed range to avoid exceeding the safety limit or colliding with other objects.

On the other hand, by setting an appropriate limit position, the movement range and position of the drive rod 23 can be precisely controlled to improve accuracy and efficiency.

On the other hand, it can also be ensured that each driving rod 23 moves to the same position or state in each operation, thereby ensuring the consistency and stability of the product or process, that is, making the liquid injection volume the same as possible each time.

Further, a bearing 7 is provided at the connection between the drive rod 23 and the cam 22;

The curved surface of the bearing 7 is in contact with the curved surface of the cam 22 respectively, reducing the friction coefficient between the drive rod 23 and the cam 22;

A lubrication component 5 is also provided; the lubrication component 5 includes a lubricant injection guide shaft 51, a lubricant injection block 52 and a lubricant injection nozzle 53;

The lubricating liquid injection nozzle 53 is provided on the lubricating liquid injection block 52. The lubricating liquid injection block 52 is connected to the lubricating liquid injection guide shaft 51. The lubricating liquid injection guide shaft 51 is connected to the bearing 7 to form a lubricating liquid injection passage.

Specifically, in this embodiment, as shown in FIG. 9 , the bearing 7 is arranged inside the driving rod 23 through an external snap ring for the shaft, and the curved surface of the bearing 7 is in contact with the curved surface of the cam 22 respectively, for each driving rod. 23 sets are provided on different cams 22 .

One bearing 7 is located on the side of the cam 22 close to the piston unit 14 , and the other bearing 7 is located on the side of the cam 22 away from the piston unit 14 .

The setting of the bearing 7 can reduce the wear between the drive rod 23 and the cam 22 and extend the service life of the mechanical parts; it can also reduce the movement error and improve the movement accuracy and stability, thereby improving the processing accuracy, production efficiency and stability of the mechanical device. Product quality; it can also reduce the friction between the drive rod 23 and the cam 22, reduce the energy consumption of the mechanical device, and improve operating efficiency and economy.

Specifically, as shown in Figures 1, 3 and 4, the lubrication assembly 5 is connected to the bearing 7,

The lubrication assembly 5 includes a lubricant injection guide shaft 51, a lubricant injection block 52 and a lubricant injection nozzle 53;

The lubricating liquid injection nozzle 53 is arranged on the lubricating liquid injection block 52. The lubricating liquid injection block 52 is connected to the lubricating liquid injection guide shaft 51. The lubricating liquid injection guide shaft 51 is connected to the bearing 7 to form a lubricating liquid injection passage for guiding the flow of lubricating liquid. direction.

A lubricating component 5 is provided to facilitate the injection of lubricant. The lubricating component 5 guides the lubricant to the steering transmission component 2 to prevent leakage of lubricating fluid, ensure that the steering transmission component 2 always maintains a good lubrication state, and helps improve the operating efficiency of mechanical equipment. and longevity, reducing the number of repairs and parts replacements.

The above-mentioned lubricant may include dripping oil, lubricating oil, grease lubricant, etc., and the specific lubricant type is not limited.

Further, each diversion chamber 131 is provided with a first one-way valve 1311 and a second one-way valve 1312; the first one-way valve 1311 is located at one end of the diversion chamber 131 close to the liquid inlet 11, and the second one-way valve 1311 is located at one end of the diversion chamber 131 near the liquid inlet 11. 1312 is located at one end of the diversion chamber 131 close to the liquid injection port 12;

The first one-way valve 1311 and the second one-way valve 1312 have the same liquid inlet direction, forming a liquid injection channel with one-way flow from the liquid inlet 11 to the liquid injection port 12 .

The first one-way valve 1311 and the second one-way valve 1312 only allow the fluid to flow freely in one direction, while preventing the reverse flow of the fluid in the other direction; the settings of the first one-way valve 1311 and the second one-way valve 1312 The specific basic flow direction of the fluid is preset, which helps maintain the normal operation of the system, simplifies the system design, and enhances the stability of the system; thereby effectively controlling the flow of the liquid.

Specifically, in this embodiment, the liquid inlet directions of the first one-way valve 1311 and the second one-way valve 1312 are the same to restrict the one-way flow of liquid in the diversion chamber 131, which can effectively prevent the backflow of liquid and reduce leakage. This reduces the risk and improves the stability and reliability of the battery filling process.

When the piston 141 moves away from the guide chamber 131 relative to the piston sleeve 142, the first one-way valve 1311 on the same layer opens and the second one-way valve 1312 on the same layer closes, allowing liquid to enter from the liquid inlet 11. into the guide chamber 131 through the first one-way valve 1311; when the piston 141 moves toward the guide chamber 131 relative to the piston sleeve 142, the first one-way valve 1311 of the same layer closes, and the second one-way valve 1311 of the same layer closes. When the valve 1312 is opened and pushed by the piston 141, the liquid flows out of the liquid injection port 12 through the second one-way valve 1312; the speed and direction of the liquid flow can be controlled by adjusting the piston 141.

Furthermore, the volume of the first one-way valve 1311 in the same flow guide chamber 131 is larger than the volume of the second one-way valve 1312.

Specifically, in this embodiment, the first one-way valve 1311 is a liquid inlet valve, and the second one-way valve 1312 is a liquid outlet valve;

The design that the volume of the first one-way valve 1311 is larger than that of the second one-way valve 1312 can help balance the pressure in the hydraulic system, slow down the speed of the liquid, reduce the pressure loss of the liquid in the first one-way valve 1311, and reduce wear on the valve. and heat generation to avoid the impact and oscillation of the liquid, reduce the pulsation and vibration of the liquid, thereby reducing the noise and vibration levels and improving the working efficiency and stability of the system.

Further, as shown in Figure 8 , the liquid injection module 1 also includes a first shunt module 101, a second shunt module 102 and a third shunt module 103,

The liquid inlet 11, the first shunt module 101, the second shunt module 102, the third shunt module 103, and the liquid injection port 12 are connected in one direction in sequence, and the second shunt module 102 is connected to the piston unit 14;

A seal 143 is provided at the connection between any two of the first shunt module 101, the second shunt module 102, the third shunt module 103, the liquid inlet 11, and the liquid injection port 12;

The connection between the liquid inlet 11 and each diversion chamber 131 and/or the connection between the liquid injection port 12 and each diversion chamber 131 is provided with a filter screen for filtering impurities to improve the quality of liquid injection; the filter screen is in the figure Not shown.

Further, as shown in Figure 7, the piston unit 14 includes a piston 141 and a piston sleeve 142;

Optionally, in terms of material, the piston unit 14 can be made of aluminum oxide material to form a self-sealing structure;

Specifically, in this embodiment, a seal 143 is provided on the inner wall of the piston sleeve 142 so that the piston 141 and the piston sleeve 142 form a relatively airtight space;

The sealing member 143 is a sealing ring. Optionally, in terms of material, the sealing ring can be made of rubber material, polymer material, or metal material.

The sealing ring needs good sealing performance and chemical stability to ensure that the electrolyte does not leak and can resist corrosion from chemical substances.

In this way, the piston unit 14 achieves precise control of the amount of liquid injected in a single injection. The amount of liquid injected in a single injection is positively correlated with the moving distance of the piston 141 and the bottom area of the piston sleeve 142.

The driving rod 23 is connected to the piston 141 to drive the piston 141 to reciprocate in the horizontal direction within the piston sleeve 142, so that a certain amount of liquid flows sequentially from the liquid inlet 11, the diversion chamber 131, and the liquid injection port 12 to complete liquid injection.

Further, as shown in Figure 1, the steering transmission assembly 2 is provided in the box 6. The box 6 includes a base 61, a side baffle 62 and an upper cover plate 63;

Specifically, in this embodiment, the driving member 3 is provided on the upper cover plate 63 and is connected to the upper end of the crankshaft 21 of the steering transmission assembly 2 through the shaft connector 8.

Optionally, the driving member 3 can also be meshed with the steering transmission assembly 2 for transmission through gears;

Of course, there is no limitation on the specific connection method between the driving member 3 and the steering transmission assembly 2 .

Arranging the steering transmission assembly 2 in the box 6 can achieve a compact design layout, save space and improve the compactness of the overall equipment; the box 6 also provides an additional layer of protection to prevent the steering transmission assembly 2 from being affected by the external environment. Impact and damage.

As shown in Figures 3 and 4, the box 6 is provided with a guide sleeve 92 and a guide hole 91; the guide sleeve 92 and the guide hole 91 are provided in the movement direction of the driving rod 23;

The centers of the guide sleeve 92, the guide hole 91, and the drive rod 23 are coaxially arranged.

By arranging the centers of the guide sleeve 92, the guide hole 91 and the drive rod 23 coaxially, it is helpful to achieve accurate guidance, so that the drive rod 23 moves along a predetermined trajectory during movement and can accurately align with the guide sleeve 92 Align with the guide hole 91 to improve the guidance accuracy of the system;

It can also eliminate transmission errors caused by eccentricity or misalignment, improve the accuracy and efficiency of transmission, and enable the driving force to be transmitted to the driving rod 23 more effectively;

It also helps maintain the stability of the device. Through accurate guidance and transmission, unnecessary vibration and loss of control can be avoided, providing smoother operation.

To sum up, the embodiments of the present invention at least have the following beneficial effects:

It is provided with a liquid injection module 1, a steering transmission assembly 2 and a driving part 3;

The liquid inlet 11, the flow guide chamber 131, and the liquid injection port 12 in the liquid injection module 1 are connected in sequence and are connected to each other. The piston unit 14 is connected to the flow guide cavity 131; the flow guide cavity 131 is equipped with a first one-way valve. 1311. The second one-way valve 1312 forms a one-way flow channel from the inlet to the liquid outlet. It has a more precise control over the flow direction of the liquid and presets the flow path of the liquid.

The steering transmission assembly 2 includes a crankshaft 21 and a driving rod 23; cams 22 are arranged from top to bottom along the circumferential direction of the crankshaft 21, and all cams 22 have different orientations; within a single stroke of the driving member 3, the cams 22 are driven by different The rod 23 can drive different piston units 14, and the different piston units 14 are in different processes, so that the liquid flows from the liquid inlet 11, the diversion chamber 131, and the liquid injection port 12 in sequence to complete the liquid injection; shortening a single The interval between injections improves the efficiency of injection.

A limiting component 4 is also provided to limit the movement of the drive rod 23 to improve the control accuracy and efficiency; a guide sleeve 92 and a guide hole 91 are provided so that the drive rod 23 moves along a predetermined trajectory during movement. Improve the stability of the system; a bearing 7 is provided to extend the service life of mechanical parts; a lubrication component 5 is provided to facilitate the injection of lubricant; a box 6 is provided to achieve a compact design layout and help protect the steering transmission component 2 .

Those skilled in the art can understand that the modules in the devices in the implementation scenario can be distributed in the devices in the implementation scenario according to the description of the implementation scenario, or can be correspondingly changed and located in one or more devices different from the implementation scenario. The modules of the above implementation scenarios can be combined into one module or further split into multiple sub-modules.

The above serial numbers of the present invention are only for description and do not represent the advantages and disadvantages of the implementation scenarios.

What is disclosed above are only a few specific implementation scenarios of the present invention. However, the present invention is not limited thereto. Any changes that can be thought of by those skilled in the art should fall within the protection scope of the present invention.

Claims (10)

1. A high speed infusion pump for infusing a battery, comprising: the liquid injection module, the steering transmission assembly and the driving piece;

the liquid injection module is internally provided with a liquid inlet, a liquid injection port, at least two flow guide cavities and at least two piston units; the liquid inlet, the flow guide cavity and the liquid injection port are sequentially connected and communicated with each other; the piston unit is communicated with the flow guide cavity;

the driving piece is connected with the steering transmission assembly, the steering transmission assembly is connected with at least two piston units,

through the steering transmission assembly, the driving piece drives at least two piston units to alternately reciprocate at different stages of a return stroke, so that liquid flows from the liquid inlet, the flow guide cavity and the liquid injection port in sequence, and liquid injection is completed.

2. A high speed infusion pump for infusing a battery in accordance with claim 1 wherein said steering gear assembly comprises a crankshaft, a cam and a drive rod;

the driving piece drives the crankshaft so that the crankshaft rotates along the axial direction, different cams on the crankshaft drive different driving rods, the different driving rods are connected with different piston units, and the different piston units are communicated with different flow guide cavities.

3. A high-speed liquid injection pump for injecting a battery as defined in claim 2, wherein at least two of said cams are disposed at intervals in an axial direction of said crankshaft; and all the cams are uniformly distributed in the circumferential direction of the crankshaft;

different cams drive different piston units through different drive rods so that different piston units are in different courses.

4. A high speed infusion pump for infusing a battery in accordance with claim 2 further comprising a spacing assembly;

the spacing subassembly includes: the limiting block is arranged on the driving rod and is matched with the limiting sleeve;

the limiting sleeve is matched with the driving rod in shape to limit the movement direction of the driving rod.

5. A high speed infusion pump for infusing a battery in accordance with claim 2 wherein a bearing is provided at the junction of said drive rod and said cam;

the curved surfaces of the bearings are respectively abutted with the curved surfaces of the cams, so that the friction coefficient between the driving rod and the cams is reduced;

a lubrication assembly is also provided; the lubricating assembly comprises a lubricating liquid injection guide shaft, a lubricating liquid injection block and a lubricating liquid injection nozzle;

the lubricating liquid injection nozzle is arranged on the lubricating liquid injection block, the lubricating liquid injection block is connected with the lubricating liquid injection guide shaft, and the lubricating liquid injection guide shaft is connected with the bearing to form a lubricating liquid injection passage.

6. The high-speed liquid injection pump for injecting liquid into a battery according to claim 1, wherein a first one-way valve and a second one-way valve are arranged in each flow guide cavity;

the liquid inlet direction of the first one-way valve is the same as that of the second one-way valve, the first one-way valve is positioned at one end of the flow guide cavity close to the liquid inlet, and the second one-way valve is positioned at one end of the flow guide cavity close to the liquid injection port.

7. The high-speed infusion pump for infusing a battery of claim 6, wherein the volume of said first one-way valve is greater than the volume of said second one-way valve in the same flow-guiding chamber.

8. The high-speed liquid injection pump for injecting liquid into a battery as claimed in claim 1, wherein the liquid injection module further comprises a first flow dividing module, a second flow dividing module and a third flow dividing module;

the liquid inlet, the first flow dividing module, the second flow dividing module, the third flow dividing module and the liquid injection port are sequentially and unidirectionally communicated, and the second flow dividing module is communicated with the piston unit;

sealing elements are arranged at the joints of any two of the first flow dividing module, the second flow dividing module, the third flow dividing module, the liquid inlet and the liquid injection port;

and a filter screen is arranged at the joint of the liquid inlet and each flow guide cavity and/or the joint of the liquid injection port and each flow guide cavity.

9. A high speed liquid injection pump for injecting a battery as defined in claim 1, wherein said piston unit comprises a piston and a piston sleeve;

the inner wall of the piston sleeve is provided with a sealing element so that the piston and the piston sleeve form a relatively airtight space;

the driving rod is connected with the piston and is used for driving the piston to reciprocate in the piston sleeve along the horizontal direction, so that quantitative liquid flows from the liquid inlet, the flow guide cavity and the liquid injection port in sequence, and liquid injection is completed.

10. A high speed infusion pump for infusing a battery in accordance with claim 1 wherein said steering gear assembly is disposed in a housing;

the box body is provided with a guide sleeve and a guide hole; the guide sleeve and the guide hole are arranged in the movement direction of the driving rod;

the guide sleeve, the guide hole and the center of the driving rod are coaxially arranged.