CN208385523U - A kind of battery liquid-filling syringe needle - Google Patents
A kind of battery liquid-filling syringe needle Download PDFInfo
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- CN208385523U CN208385523U CN201820779639.8U CN201820779639U CN208385523U CN 208385523 U CN208385523 U CN 208385523U CN 201820779639 U CN201820779639 U CN 201820779639U CN 208385523 U CN208385523 U CN 208385523U
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- Prior art keywords
- syringe needle
- liquid
- infusion channel
- battery
- electrolyte
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a kind of battery liquid-filling syringe needle, including spike body, spike body has the syringe needle tail portion for being directed at the syringe needle head of battery liquid-filling mouth and connecting with perfusion tube, syringe needle head has liquid outlet, syringe needle tail portion has inlet, the infusion channel for being internally provided with connection liquid outlet and inlet of spike body, the side wall of infusion channel are provided with buffer structure between liquid outlet and inlet, and buffer structure is used to slow down the flow velocity of the electrolyte in infusion channel.Its liquid speed degree out that can slow down electrolyte, can reduce since the excessive velocities of electrolyte lead to electrolyte spluttering or excessive phenomenon in the case where not increasing outer dimension, realize efficient fluid injection.
Description
Technical field
The utility model relates to battery processing technique field more particularly to a kind of battery liquid-filling syringe needles.
Background technique
Currently, miscellaneous battery is widely used with the development of electronic product, electrolyte be prepare battery must
Standby material.When producing battery, need in the inside of battery injection electrolyte, and a pass of the fluid injection syringe needle in liquid-injection equipment
Key member.
In the prior art, injection needle head generally uses cylindrical syringe needle, the i.e. infusion channel of fluid injection needle wall everywhere
Diameter it is consistent, the sebific duct of syringe needle tail portion and input electrolyte is connected when in use, syringe needle head connect with battery core,
Electrolyte is finally output to inside battery from syringe needle head from the infusion channel that syringe needle tail portion proceeds to needle wall, such
The structure of syringe needle is simpler, easy to process.It is defeated but since diameter is consistent everywhere for the infusion channel of cylindrical type syringe needle
Liquid fast speed, for the reserved electrolysis lesser battery of liquid space, the shell wall or battery core of electrolyte and battery are easy to fly after hitting
It splashes outside battery, causes the inaccuracy of reservoir quantity, and the shell of meeting corrosion cell, reduce yield rate.If directly increasing note
The diameter of the infusion channel of liquid syringe needle then can make fluid injection syringe needle integrally bigger than normal, be not easy to the liquid injection port of alignment compact battery, be easy
Cause electrolyte excessive.
Utility model content
One purpose of the utility model is: providing a kind of battery liquid-filling syringe needle, can slow down electrolyte goes out liquid speed
Degree.
Another purpose of the utility model is: providing a kind of battery liquid-filling syringe needle, can not increase outer dimension
In the case where reduce and lead to electrolyte spluttering or excessive phenomenon due to the excessive velocities of electrolyte, realize efficient fluid injection.
In order to achieve the above objectives, the utility model uses following technical scheme:
A kind of battery liquid-filling syringe needle, including spike body are provided, the spike body has for being directed at battery liquid-filling mouth
Syringe needle head and the syringe needle tail portion that is connect with perfusion tube, the syringe needle head there is liquid outlet, the syringe needle tail portion has
Inlet, the infusion channel for being internally provided with the connection liquid outlet and the inlet of the spike body are described defeated
The side wall in liquid channel is provided with buffer structure between the liquid outlet and the inlet, and the buffer structure is for slowing down institute
State the flow velocity of the electrolyte in infusion channel.
As a preferred technical solution of the battery liquid-filling syringe needle, the buffer structure is recessed in institute for annular
The buffer groove of the inner wall of infusion channel is stated, the buffer groove is connected to the infusion channel.
As a preferred technical solution of the battery liquid-filling syringe needle, the notch of the buffer groove with it is described defeated
The inner wall link position in liquid channel is provided with chamfering structure.
As a preferred technical solution of the battery liquid-filling syringe needle, the arc-shaped knot of the slot bottom of the buffer groove
Structure.
As a preferred technical solution of the battery liquid-filling syringe needle, the buffer groove is provided at least two
A, at least two buffer grooves are evenly spaced on along the length direction of the infusion channel.
As a preferred technical solution of the battery liquid-filling syringe needle, along the radial direction of the infusion channel,
The depth of each buffer groove is incremented by successively by the direction far from the syringe needle head to the syringe needle head.
As a preferred technical solution of the battery liquid-filling syringe needle, the buffer structure is to be arranged described defeated
The helicitic texture of liquid vias inner walls.
As a preferred technical solution of the battery liquid-filling syringe needle, the internal diameter of the infusion channel is by far from institute
The one end for stating syringe needle head is incremented by one end close to the syringe needle head.
As a preferred technical solution of the battery liquid-filling syringe needle, the helicitic texture is arranged in the infusion
Position of the inner wall in channel close to the syringe needle head.
As a preferred technical solution of the battery liquid-filling syringe needle, the shape of the spike body is in rotary table knot
Structure, the cross-sectional area on the syringe needle head are less than the cross-sectional area of the syringe needle tail portion.
The utility model has the following beneficial effects: buffer structure is set between liquid outlet and inlet in infusion channel,
During injecting electrolyte, sprays, subtract from the liquid outlet of infusion channel after being buffered using buffer structure to electrolyte
The flow velocity of electrolyte at small liquid outlet avoids the excessive velocities of electrolyte that electrolyte spluttering the fluid injection during is caused to show
As occurring.It is convenient to electrolyte output quantity during fluid injection due to reducing the output speed of the electrolyte of liquid outlet
Efficient fluid injection is realized in control, reduces the excessive phenomenon of electrolyte, the shell of battery is avoided to be corroded, and improves yield rate, and advantageous
In optimization production environment.
Detailed description of the invention
The utility model is described in further detail below according to drawings and examples.
Fig. 1 is battery liquid-filling needle head structure schematic diagram described in embodiment one.
Fig. 2 is battery liquid-filling needle head structure schematic diagram described in embodiment two.
In Fig. 1:
11, infusion channel；12, buffer groove；13, syringe needle head；14, syringe needle tail portion；141, interconnecting piece；15, chamfering knot
Structure.
In Fig. 2:
21, infusion channel；22, helicitic texture；23, syringe needle head；24, syringe needle tail portion；241, interconnecting piece.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
Embodiment one:
As shown in Figure 1, in this present embodiment, a kind of battery liquid-filling syringe needle described in the utility model, including spike body,
The spike body has the syringe needle tail portion 14 for being directed at the syringe needle head 13 of battery liquid-filling mouth and connecting with perfusion tube, institute
Syringe needle head 13 is stated with liquid outlet, the syringe needle tail portion 14 has inlet, and the spike body is internally provided with connection
The infusion channel 11 of the liquid outlet and the inlet, the side wall of the infusion channel 11 in the liquid outlet and it is described into
Buffer structure is provided between liquid mouth, the buffer structure is used to slow down the flow velocity of the electrolyte in the infusion channel 11.
Syringe needle head 13 is directed at battery liquid-filling mouth, electrolyte is made to be directly entered battery liquid-filling mouth by liquid outlet, thus
Inject the electrolyte into the inside of battery.Buffer structure is set between liquid outlet and inlet in infusion channel 11, is being injected
It during electrolyte, sprays, reduces from the liquid outlet of infusion channel 11 after being buffered using buffer structure to electrolyte
The flow velocity of electrolyte at liquid outlet avoids the excessive velocities of electrolyte from causing electrolyte during fluid injection the phenomenon that spluttering
Occur.Due to reducing the output speed of the electrolyte of liquid outlet, the convenient control to electrolyte output quantity during fluid injection
System realizes efficient fluid injection, reduces the excessive phenomenon of electrolyte, the shell of battery is avoided to be corroded, improve yield rate, and be conducive to
Optimize production environment.Wherein, in the present embodiment, the spike body is made of aluminum material, certainly in other embodiments
The spike body can also be made of stainless steel, copper, glass etc., or using any two kinds in al stainless steel, copper, glass
Or the composite material of three kinds of formation is made, or is made of other composite materials.
In specific implement, the inner diameter size of the corresponding infusion channel 11 in syringe needle tail portion 14 and syringe needle head 13
It can be configured according to the actual conditions of battery.In the present embodiment, the perfusion tube is sebific duct, but is not restricted to glue
Pipe, in other examples, perfusion tube is also possible to steel pipe, aluminum pipe etc..Battery liquid-filling syringe needle described in this programme and not only
It is limited to inject electrolyte, can be also used for injecting other liquid, for example, liquid medicine injection, chemical reagent etc..
In the present embodiment, the buffer structure is the buffer groove of the recessed inner wall in the infusion channel 11 of annular
12, the buffer groove 12 is connected to the infusion channel 11.Buffer groove 12 is connected to infusion channel 11, electrolyte is flowing
When through infusion channel 11 with 12 relative position of buffer groove, a part of electrolyte can enter in buffer groove 12, reduce electricity
The flow velocity for solving liquid finally slows down electrolyte in liquid outlet and goes out liquid speed degree, and the liquid excessive velocities that go out of electrolyte is avoided to hit battery
Shell wall or battery core and cause splash the phenomenon that, in the present embodiment, pass through the recessed buffer groove of inner wall in infusion channel 11
12, guarantee that the outer dimension of fluid injection syringe needle does not increase, so that the battery liquid-filling syringe needle is equally applicable to compact battery, expanding makes
Range.
The notch of the buffer groove 12 and the inner wall link position of the infusion channel 11 are provided with chamfering structure 15.?
Chamfering structure 15 is arranged in the notch of buffer groove 12 and the link position of infusion channel 11, reduces the notch of buffer groove 12 and defeated
The corner angle of the position connected inside liquid channel 11 are conducive to guidance for electrolyte and flow to buffer groove 12 from infusion channel 11
It is interior, avoid electrolyte due to corner angle are excessive and causing electrolyte not enter in buffer groove 12 or because corner angle are excessive leads to electricity
Solution liquid is trapped in for a long time in buffer groove 12, guarantees the stability of the flowing of electrolyte.In the present embodiment, the perfusion tube
For sebific duct, but it is not restricted to sebific duct, in other examples, perfusion tube is also possible to steel pipe, aluminum pipe etc..This programme institute
The battery liquid-filling syringe needle stated is not limited in injecting electrolyte, can be also used for injecting other liquid, for example, liquid medicine injection,
Chemical reagent etc..
Wherein, the arc-shaped structure of slot bottom of the buffer groove 12.Arcuate structure is set by the slot bottom of buffer groove 12,
So that the groove of the arc-shaped shape of buffer groove 12, increases the space of buffer groove 12, and easy to process.
It should be noted that the buffer groove 12 is not limited only to be arc-shaped shape structure, in other examples,
Buffer groove 12 can also be the structure of other shapes, for example, prism-shaped, round table-like etc..
Specifically, the buffer groove 12 is provided at least two, at least two buffer grooves 12 are along the infusion
The length direction in channel 11 is evenly spaced on.Length direction by buffer groove 12 along infusion channel 11 is evenly spaced on,
The space for accommodating electrolyte is further increased in infusion channel 11, improves the buffering effect to electrolyte.It is logical along the infusion
The radial direction in road 11, the depth of each buffer groove 12 is by far from the syringe needle head 13 to the syringe needle head 13
Direction is incremented by successively.It is designed by this, the volume of each buffer groove 12 is successively by far from the syringe needle head 13 to close needle
The direction in head portion 13 is incremented by successively so that flow velocity of the electrolyte in infusion channel 11 from far from the syringe needle head 13 to
Direction close to syringe needle head 13 is successively successively decreased, and guarantees that electrolyte smoothly goes out liquid from liquid outlet.
The shape of the spike body is in frustum cone structure, and the cross-sectional area on the syringe needle head 13 is less than the syringe needle tail portion
14 cross-sectional area, the syringe needle head 13 are provided with the interconnecting piece 141 connecting with the perfusion tube.Current more typically needle
The shape of head ontology is in frustum cone structure, and the outer diameter of spike body is gradually subtracted by the direction of syringe needle tail portion 14 to syringe needle head 13
It is small, also guarantee the structural strength of spike body while the volume of needle body ontology can be reduced as much as possible, guarantees syringe needle tail portion
14 there is sufficiently large outer diameter to be arranged perfusion tube.It certainly, in other examples, can also be by the shape of the spike body
It is designed as other structures such as cylindrical structure, prismatic structure.
Wherein, rotary table refers to that the plane for being parallel to circular cone bottom surface with one goes to truncated cone, the part between bottom surface and section.
Embodiment two:
As shown in Fig. 2, in this present embodiment, a kind of battery liquid-filling syringe needle described in the utility model, including spike body,
The spike body has the syringe needle head 23 connecting with the inside of battery and the syringe needle tail portion 24 connecting with perfusion tube, described
Syringe needle head 23 has liquid outlet, and the syringe needle tail portion 24 has inlet, and the spike body is internally provided with connection institute
The infusion channel 21 of liquid outlet and the inlet is stated, the side wall of the infusion channel 21 is in the liquid outlet and the feed liquor
Buffer structure is provided between mouthful, the buffer structure is used to slow down the flow velocity of the electrolyte in the infusion channel 21.
Buffer structure is set between the liquid outlet and inlet in infusion channel 21, during injecting electrolyte,
It is sprayed from the liquid outlet of infusion channel 21 after being buffered using buffer structure to electrolyte, reduces the electrolyte at liquid outlet
Flow velocity, avoid during injecting electrolyte.It is designed by this, it is effective to reduce due to the electrolyte in infusion channel 21
Output speed it is too fast and lead to be electrolysed spluttering or excessive phenomenon, simultaneously because reducing the output speed of the electrolyte of liquid outlet
Degree, the control to electrolyte output quantity is facilitated during fluid injection, realizes efficient fluid injection, drops to that electrolyte is excessive to be showed
As avoiding the shell of battery from being corroded, improving yield rate, and be conducive to optimize production environment.Wherein, in the present embodiment, institute
It states battery liquid-filling syringe needle to be made of aluminum material, certainly described in other embodiments, battery liquid-filling syringe needle can also be used stainless
Steel, copper, glass etc. are made, or are made of any two or three material that meets formed of al stainless steel, copper, glass, or
Person is made of using other composite materials.In specific implement, syringe needle tail portion 24 and syringe needle head 23 are corresponding
The inner diameter size of infusion channel 21 can be configured according to the actual conditions of battery.In the present embodiment, the perfusion tube is glue
Pipe, but it is not restricted to sebific duct, in other examples, perfusion tube is also possible to steel pipe, aluminum pipe etc..Described in this programme
Battery liquid-filling syringe needle is not limited in injecting electrolyte, can be also used for injecting other liquid, for example, liquid medicine injection, chemistry
Reagent etc..
In the present embodiment, the buffer structure is the helicitic texture 22 that 21 inner wall of infusion channel is arranged in.Setting
Helicitic texture 22 increases the frictional force of 21 inner wall of infusion channel, plays certain obstruction to the electrolyte in infusion channel 21 and makees
With to slow down electrolyte in the liquid speed degree out of the liquid outlet on syringe needle head 23.By the way that screw thread knot is arranged in infusion channel 21
Structure 22, in the case where the size for not increasing infusion channel 21, can effectively slow down liquid outlet goes out liquid speed degree, also, in life
During producing electricity pond fluid injection syringe needle, it is easy to the inwall processing helicitic texture 22 in infusion channel 21.
Wherein, the internal diameter of the infusion channel 21 is from one end far from the syringe needle head 23 to close to the syringe needle head
23 one end is incremented by, and the bore of liquid outlet is greater than the bore of inlet, makes infusion channel 21 integrally in frustum cone structure, infusion channel
21 are less than the logical cross-sectional area close to syringe needle head 23 of infusion close to 24 cross-sectional area of syringe needle tail portion, due in infusion channel 21
Liquid outlet cross-sectional area closer to syringe needle head 23 is bigger, and liquid outlet flow velocity of the electrolyte closer to syringe needle head 23 is smaller,
Slow down electrolysis and goes out liquid speed degree in liquid outlet.Specifically, the inner wall that infusion channel 21 is arranged in the helicitic texture 22 is close
The position on the syringe needle head 23.
The shape of the spike body is in frustum cone structure, and the cross-sectional area on the syringe needle head 23 is less than the syringe needle tail portion
24 cross-sectional areas, the syringe needle head 23 are provided with the interconnecting piece 241 connecting with the perfusion tube.Current more typically syringe needle
The shape of ontology is in frustum cone structure, and the outer diameter of spike body is gradually reduced by the direction on syringe needle tail portion 24 to syringe needle head 23,
Also guarantee spike body structural strength while the volume of needle body ontology can be reduced as much as possible, guarantee that syringe needle tail portion 24 has
Sufficiently large outer diameter is arranged perfusion tube.Certainly, in other examples, the shape of the spike body can also be designed as
The others structure such as cylindrical structure, prismatic structure.
Wherein, rotary table refers to that the plane for being parallel to circular cone bottom surface with one goes to truncated cone, the part between bottom surface and section.
Embodiment three:
The present embodiment and embodiment one and embodiment two are essentially identical, and difference is that buffer structure includes simultaneously delaying
Rush groove and helicitic texture.
It is to be understood that above-mentioned specific embodiment is only the preferred embodiment and institute's application technology of the utility model
Principle, in technical scope disclosed in the utility model, what anyone skilled in the art was readily apparent that
Change or replacement should all be covered within the protection scope of the present utility model.
Claims (10)
1. a kind of battery liquid-filling syringe needle, which is characterized in that including spike body, the spike body has for being directed at battery note
The syringe needle head of liquid mouth and the syringe needle tail portion connecting with perfusion tube, the syringe needle head have liquid outlet, the syringe needle tail portion
With inlet, the spike body is internally provided with the infusion channel for being connected to the liquid outlet and the inlet, institute
The side wall for stating infusion channel is provided with buffer structure between the liquid outlet and the inlet, and the buffer structure is for subtracting
Delay the flow velocity of the electrolyte in the infusion channel.
2. battery liquid-filling syringe needle according to claim 1, which is characterized in that the buffer structure is that annular is recessed described
The buffer groove of the inner wall of infusion channel, the buffer groove are connected to the infusion channel.
3. battery liquid-filling syringe needle according to claim 2, which is characterized in that the notch of the buffer groove and the infusion
The inner wall link position in channel is provided with chamfering structure.
4. battery liquid-filling syringe needle according to claim 3, which is characterized in that the arc-shaped knot of the slot bottom of the buffer groove
Structure.
5. battery liquid-filling syringe needle according to claim 4, which is characterized in that the buffer groove is provided at least two,
At least two buffer grooves are evenly spaced on along the length direction of the infusion channel.
6. battery liquid-filling syringe needle according to claim 5, which is characterized in that along the radial direction of the infusion channel, respectively
The depth of a buffer groove is incremented by successively by the direction far from the syringe needle head to the syringe needle head.
7. battery liquid-filling syringe needle according to claim 1, which is characterized in that the buffer structure is to be arranged in the infusion
The helicitic texture of vias inner walls.
8. battery liquid-filling syringe needle according to claim 7, which is characterized in that the internal diameter of the infusion channel is by far from described
The one end on syringe needle head is incremented by one end close to the syringe needle head.
9. battery liquid-filling syringe needle according to claim 7 or 8, which is characterized in that the helicitic texture is arranged described defeated
Position of the inner wall in liquid channel close to the syringe needle head.
10. battery liquid-filling syringe needle according to claim 1, which is characterized in that the shape of the spike body is in rotary table knot
Structure, the cross-sectional area on the syringe needle head are less than the cross-sectional area of the syringe needle tail portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820779639.8U CN208385523U (en) | 2018-05-23 | 2018-05-23 | A kind of battery liquid-filling syringe needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820779639.8U CN208385523U (en) | 2018-05-23 | 2018-05-23 | A kind of battery liquid-filling syringe needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208385523U true CN208385523U (en) | 2019-01-15 |
Family
ID=64971933
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820779639.8U Active CN208385523U (en) | 2018-05-23 | 2018-05-23 | A kind of battery liquid-filling syringe needle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109817878A (en) * | 2019-03-20 | 2019-05-28 | 江西力能新能源科技有限公司 | A kind of lithium battery liquid injection system and electrolyte filling method |
-
2018
- 2018-05-23 CN CN201820779639.8U patent/CN208385523U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109817878A (en) * | 2019-03-20 | 2019-05-28 | 江西力能新能源科技有限公司 | A kind of lithium battery liquid injection system and electrolyte filling method |
| CN109817878B (en) * | 2019-03-20 | 2024-03-05 | 江西力能新能源科技有限公司 | Lithium battery liquid injection system and liquid injection method |
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