CN205452425U - Priming device and annotate liquid needle and annotate liquid cup seal structure thereof - Google Patents
Priming device and annotate liquid needle and annotate liquid cup seal structure thereof Download PDFInfo
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- CN205452425U CN205452425U CN201521142830.4U CN201521142830U CN205452425U CN 205452425 U CN205452425 U CN 205452425U CN 201521142830 U CN201521142830 U CN 201521142830U CN 205452425 U CN205452425 U CN 205452425U
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- check valve
- cup
- fluid injection
- containing cavity
- injection needle
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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 priming device and annotate liquid needle and annotate liquid cup seal structure thereof, seal structure is including annotating the liquid cup, annotating liquid needle, check valve and seal cover, it is hollow structure and has the first holding chamber that holds electrolyte to annotate the liquid cup, it has the holding to annotate liquid cup upper end the check valve reaches the second holding chamber of seal cover, a first opening and a second opening have been seted up respectively to the upper and lower end in second holding chamber, the seal cover set up hermetcally in check valve upper end peripheral with between the first opening, the lower extreme of check valve set up hermetcally in but second opening part and uniaxially to open in first holding chamber, annotate the liquid needle with check valve sealed intercommunication back drive downwards the check valve makes the check valve to open in first holding chamber. This neotype notes liquid needle with annotate liquid cup seal structure simple structure, the condition of electrolyte crystallization can not appear in the noresidue at harvest time, guarantees that notes liquid continuously goes on. The priming device includes foretell notes liquid needle and annotates liquid cup seal structure.
Description
Technical field
This utility model relates to priming device technical field, particularly relates to the sealing structure of a kind of injection needle and fluid injection cup.
Background technology
Lithium ion battery has the advantage that energy height, cell voltage height, operating temperature range width, storage life length and volume are little, has been widely used in military and civilian compact electric apparatus.Especially, in the production process of electric automobile (ElectricVehicles, EV) power duricrust battery, fluid injection is a vital step.The fluid injection mode of existing EV power duricrust battery is to use tradition lithium battery mechanism for filling liquid to carry out vacuum liquid filling, it is achieved the key of vacuum liquid filling is again the sealing mechanism of injection needle and vacuum cup.But traditional injection needle is complicated with the structure of vacuum cup sealing mechanism; even cannot accomplish that vacuum once completes automatic fluid injection and clears up residual liquid; during fluid injection repeatedly; it is likely to occur electrolyte to invade sealing mechanism and crystallize, causes the problems such as pipeline blocking, damage equipment; cause cannot be carried out vacuum liquid filling; need shutdown maintenance, cause efficiency to reduce, add maintenance cost.
In order to solve the problems referred to above, it is necessary to provide a kind of simple in construction, noresidue injection needle to seal structure with fluid injection cup.
Utility model content
The purpose of this utility model is to provide a kind of simple in construction, noresidue injection needle to seal structure with fluid injection cup.
Another object of the present utility model is to provide a kind of priming device, seals structure including simple in construction, noresidue injection needle with fluid injection cup.
To achieve these goals, this utility model provides a kind of injection needle and seals structure with fluid injection cup, including fluid injection cup, injection needle, check valve and sealing shroud；Described fluid injection cup is hollow structure and has the first containing cavity accommodating electrolyte, described fluid injection cup upper end has the second containing cavity of accommodating described check valve and described sealing shroud, described second containing cavity upper, lower end offers one first opening and one second opening respectively, described sealing shroud is sealingly arranged between the periphery of described check valve upper end and described first opening, the lower end of described check valve is sealingly arranged in described second opening part and can uniaxially open to described first containing cavity, described injection needle seals with described check valve and connects the backward described check valve of lower driving, described check valve is made to open to described first containing cavity.
It is preferred that described fluid injection cup includes a cup and the bowl cover being sealedly and fixedly connected with described cup, described second containing cavity is formed in described bowl cover.
Being connected it is preferred that described sealing shroud is fixing with the upper end of described check valve, described sealing shroud can slide up and down along the first opening hermetically with described check valve.
Formation one flange it is preferred that the lower end of described sealing shroud stretches out, the external diameter of described flange is more than the diameter of described first opening.
Preferably, also include the seal head being positioned at described second containing cavity, described seal head is fixed on the diapire of described second containing cavity and offers a through hole corresponding with described second opening, described check valve has at least one liquid outlet being opened on its lower end sidewall, the salable described liquid outlet of sidewall of described through hole.
Preferably, described injection needle and fluid injection cup seal structure and also include being sheathed on described check valve periphery and the flexible member between described sealing shroud and described second containing cavity, and described flexible member biases described sealing shroud and described check valve upward sliding to close described check valve.
Preferably, described injection needle and fluid injection cup seal structure and also include being positioned at described second containing cavity and being sheathed on the limited block that described check valve is peripheral, described limited block has First terrace, and described First terrace and described sealing shroud abut against to limit described sealing shroud and described check valve excessively glides.
Preferably, described injection needle and fluid injection cup seal structure and also include being positioned at described second containing cavity and being sheathed on the limited block that described check valve is peripheral, described limited block has second step face, and described flexible member is located between described second step face and described sealing shroud.
It is preferred that the periphery of described injection needle lower end is provided with fluid injection syringe needle sealing ring, when described injection needle connects with described check valve, described fluid injection syringe needle sealing ring realizes the sealing of described injection needle and described check valve.
This utility model also provides for a kind of priming device, seals structure including above-mentioned injection needle with fluid injection cup.
Compared with prior art, it is simple that the described injection needle of utility model and fluid injection cup seal architecture, and the only upper end at fluid injection cup arranges a check valve；Before described check valve is opened, the upper end of described fluid injection cup is to seal, and is to achieve dual-seal at the first opening and the second opening part；When after described injection needle connects with the upper end sealing of described check valve and driving described check valve downwards, the lower end of described check valve is opened to described first containing cavity, and described sealing shroud also is able to realize the sealing of described fluid injection cup upper end.And, electrolyte enters fluid injection cup from the second opening, and the second extended distance keeps the first opening sealed to have certain safe distance, and electrolyte will not be in the first opening part residual or crystallization, it can be ensured that fluid injection operation is the most persistently carried out.
Accompanying drawing explanation
Fig. 1 is the injection needle of this utility model priming device axonometric chart when separating with fluid injection cup.
Fig. 2 is injection needle and the fluid injection cup of this utility model priming device axonometric chart when being tightly connected.
Fig. 3 is the full sectional view of Fig. 1.
Fig. 4 is the full sectional view of Fig. 2.
Fig. 5 is the enlarged drawing in Fig. 4 at C.
Fig. 6 is the enlarged drawing in Fig. 4 at D.
Detailed description of the invention
Below in conjunction with the Figure of description provided, description is made in preferred embodiment of the present utility model.
As shown in Figures 1 to 4, this utility model provides a kind of priming device 1, for carrying out vacuum liquid filling to semi-finished product EV power duricrust battery 2, includes injection needle and seals structure 10 with fluid injection cup.Injection needle and fluid injection cup seal structure 10 and include the fluid injection cup 12 being positioned at above EV power duricrust battery 2 and be positioned at the injection needle 14 above described fluid injection cup 12.
As shown in Figure 3-4, injection needle 14 is for having fluid injection chamber 142 inside hollow structure and its, priming device 1 also includes being fixedly linked with injection needle 14 and for the drive mechanism 20 driving injection needle 14 to move up and down, and it being sheathed on the liquid injecting mouth 30 that injection needle 14 is outer and is connected with drive mechanism 20, the lower end of injection needle 14 is stretched out liquid injecting mouth 30 and is arranged.It is preferred that be also arranged with a fluid injection syringe needle sealing ring 142 in the periphery, lower end of injection needle 14.Wherein, above-mentioned drive mechanism 20 is cylinder.
As in Figure 3-5, fluid injection cup 12 includes the bowl cover 125 that a cup 124 and cup 124 are sealedly and fixedly connected, and at the bottom of a glass be sealedly and fixedly connected with cup 124 126, fluid injection cup 12 is hollow structure and has the first containing cavity 122 accommodating electrolyte, and the first containing cavity 122 is surrounded by the bottom of cup 124, bowl cover 125 and cup 126.The second containing cavity 1251 it is formed with in bowl cover 125, the upper end of the second containing cavity 1251 offers connection the second containing cavity 1251 to the first extraneous opening 1251a, and the lower end of the second containing cavity 1251 offers the second opening 1251b of connection the second containing cavity 1251 to the first containing cavity 122.Specifically, injection needle and fluid injection cup seal check valve 15, sealing shroud 16, seal head 17, limited block 18 that structure 10 also includes being located in the second containing cavity 1251, and a flexible member 19.Check valve 15 is in hollow structure and inside has an inner chamber 152, and the upper end of check valve 15 is open state, and its internal diameter is slightly larger than the external diameter of injection needle 14, so that injection needle 14 can be inserted in check valve 15；The bottom surface of check valve 15 lower end is closed, and offers at least one liquid outlet 154 on the sidewall of bottom surface in its lower end, and in the present embodiment, liquid outlet 154 is symmetrically arranged 4.Check valve 15 is vertically arranged in the second containing cavity 1251, and sealing shroud 16 is sealingly arranged between the periphery of check valve 15 upper end and the first opening 1251a.Specifically, sealing shroud 16 is sheathed on the upper end of check valve 15 and fixing with check valve 15 is connected, sealing shroud 16 and the upper surface flush of check valve 15, sealing shroud 16 can slide up and down along the first opening 1251a hermetically with check valve 15, during sliding up and down, sealing shroud 16 and the first opening 1251a keeps sealing.In the present embodiment, sealing shroud 16 is in cylindrical shape.In order to prevent sealing shroud 16 and check valve 15 from skidding off from the first opening 1251a, stretch out formation one flange 162 in the lower end of sealing shroud 16, the external diameter of flange 162 diameter more than the first opening 1251a, thus can limit check valve 15 upward sliding to greatest extent.Seal head 17 is fixed on the diapire of the second containing cavity 1251 and offers a through hole 172 corresponding for opening 1251b with second, the lower end of check valve 15 is placed in this through hole 172 hermetically, i.e. when check valve 15 is positioned at uppermost position, the liquid outlet 154 of check valve 15 abuts against with the sidewall of through hole 172, thus realizes sealing.From the foregoing, it will be observed that the first containing cavity 122 realizes dual-seal by sealing shroud 16 and seal head 17 and being tightly connected of check valve 15.When check valve 15 and sealing shroud 16 slide downward, the liquid outlet 154 of check valve 15 stretches into the first containing cavity 122, thus connects the first containing cavity 122 and the inner chamber 152 of check valve 15, the most uniaxially opens check valve 15.Limited block 18 is fixed between seal head 17 and the roof of the second containing cavity 1251, also in hollow structure to allow check valve 15 and sealing shroud 16 to move in the inner.Specifically, the hollow structure of limited block 18 is made up of the cylinder groove of the different-diameter being interconnected, specifically include and be positioned at the first groove 182 that allowed sealing shroud 16 topmost slides up and down, the diapire of the first groove 182 constitutes First terrace 1821, and First terrace 1821 and sealing shroud 16 abut against to limit sealing shroud 16 and check valve 15 excessively glides；The diameter the second groove 184 less than the first groove 182 is offered on First terrace 1821, the diapire of the second groove 184 constitutes second step face 1842, what flexible member 19 was compressed is arranged between second step face 1842 and sealing shroud 16, closes check valve 15 to bias sealing shroud 16 and check valve 15 upward sliding；Offering the diameter the 3rd groove 186 less than the second groove 184 on second step face 1841, the 3rd groove 184 is allow only one-way valve 15 and passes.
With reference to shown in 3-5 and 6, the upper surface at the cup end 126 constitutes the diapire of the first containing cavity 122, this diapire becomes inverted taper seat, connection the first containing cavity 122 is offered to an extraneous liquid injection hole 1262 at the bottom of cup 126, and on the upper surface of 126 at the bottom of cup, offer the collecting tank 1264 of a connection liquid injection hole 1262, this collecting tank 1264 is positioned at the drift angle of taper seat, is arranged such and is easier to electrolyte collection and flow in collecting tank 1264.Fluid injection cup 12 also includes first-class tube road 127, circulation pipeline 127 is in inverted U-shaped and be arranged in the first containing cavity 122, the two ends length of circulation pipeline 127 is inconsistent, its long end is placed through liquid injection hole 1262 the hole wall fixed seal connection with liquid injection hole 1262, its short end is suspended in collecting tank 1264, is not in contact with the diapire of collecting tank 1264.The bottom at the cup end 126 is additionally provided with the fluid injection cup mouth 128 connected with liquid injection hole 1262, and the effect of fluid injection cup mouth 128 is to insert the liquid-entering hole on EV power duricrust battery, it is achieved match rapidly.
Introducing the work process of this novel priming device below with reference to all accompanying drawings: under original state, check valve 15 and sealing shroud 16 are positioned at higher position, and injection needle 14 does not contacts with check valve 15.First EV power duricrust battery 2 is placed in the lower section of fluid injection cup 12, make the fluid injection cup mouth 128 of fluid injection cup 2 and the liquid-entering hole pairing of EV power duricrust battery 2, start drive mechanism 20, driving injection needle 14 to move down until injection needle 14 inserts the upper end entrance of check valve 15, fluid injection syringe needle sealing ring 144 is formed with sealing shroud 16 and is tightly connected simultaneously.Now due to check valve 15 and be not switched on, therefore the first containing cavity 122 of fluid injection cup 12 and EV power duricrust battery 2 and injection needle 14 are all in sealing state.Drive mechanism 20 continues to drive downwards injection needle 14, injection needle 14 can continue slide downward by biasing resilient member 19 after abutting with check valve 15, until sealing shroud 16 abuts to First terrace 1821, now, the through hole 172 of the downward out seal head of liquid outlet 154 17 of check valve 15 and connect with the first containing cavity 122, i.e. check valve 115 is opened.The fluid injection chamber 142 of injection needle 14, the inner chamber 152 of check valve 15 are connected with the first containing cavity 122, and electrolyte is flowed in fluid injection cup 12 from injection needle 14.Finally, add malleation in the first containing cavity 122, order about electrolyte and injected in EV power duricrust battery 2 by circulation pipeline 127 and fluid injection cup mouth 128, complete fluid injection.
Compared with prior art, the injection needle of utility model seals the simple in construction of structure 10 with fluid injection cup, and the only upper end at fluid injection cup 12 arranges a check valve 15；Before check valve 15 is opened, the upper end of fluid injection cup 12 is to seal, and is to achieve dual-seal at the first opening 1251a and the second opening 1251b；When after injection needle 14 connects with the upper end sealing of check valve 15 and driving check valve 15 downwards, the lower end of check valve 15 is opened to the first containing cavity 122, and sealing shroud 16 also is able to realize the sealing of fluid injection cup 12 upper end.And, electrolyte enters fluid injection cup 12 from the second opening 1251b, and the second opening 1251b distance keeps the first opening 1251a sealed to have certain safe distance, electrolyte will not remain at the first opening 1251a or crystallize, it can be ensured that fluid injection operation is the most persistently carried out.
Above disclosed only preferred embodiments of the present utility model, its effect is to facilitate those skilled in the art to understand and implement according to this, certainly the interest field of this utility model can not be limited with this, therefore the equivalent variations made according to this utility model claim, still falls within the scope that this utility model is contained.
Claims (10)
1. an injection needle seals structure with fluid injection cup, it is characterised in that: include fluid injection cup, injection needle, check valve and sealing shroud；
Described fluid injection cup is hollow structure and has the first containing cavity accommodating electrolyte, described fluid injection cup upper end has the second containing cavity of accommodating described check valve and described sealing shroud, described second containing cavity upper, lower end offers one first opening and one second opening respectively, described sealing shroud is sealingly arranged between the periphery of described check valve upper end and described first opening, the lower end of described check valve is sealingly arranged in described second opening part and can uniaxially open to described first containing cavity, described injection needle seals with described check valve and connects the backward described check valve of lower driving, described check valve is made to open to described first containing cavity.
2. injection needle as claimed in claim 1 seals structure with fluid injection cup, it is characterised in that: described fluid injection cup includes a cup and the bowl cover being sealedly and fixedly connected with described cup, and described second containing cavity is formed in described bowl cover.
3. injection needle as claimed in claim 1 seals structure with fluid injection cup, it is characterised in that: described sealing shroud is fixing with the upper end of described check valve to be connected, and described sealing shroud can slide up and down along the first opening hermetically with described check valve.
4. injection needle as claimed in claim 3 seals structure with fluid injection cup, it is characterised in that: the lower end of described sealing shroud stretches out and forms a flange, and the external diameter of described flange is more than the diameter of described first opening.
5. injection needle as claimed in claim 1 seals structure with fluid injection cup, it is characterized in that: also include being positioned at a seal head of described second containing cavity, described seal head is fixed on the diapire of described second containing cavity and offers a through hole corresponding with described second opening, described check valve has at least one liquid outlet being opened on its lower end sidewall, the salable described liquid outlet of sidewall of described through hole.
6. injection needle as claimed in claim 3 seals structure with fluid injection cup, it is characterized in that: also including being sheathed on described check valve periphery and the flexible member between described sealing shroud and described second containing cavity, described flexible member biases described sealing shroud and described check valve upward sliding to close described check valve.
7. injection needle as claimed in claim 4 seals structure with fluid injection cup, it is characterized in that: also include being positioned at described second containing cavity and being sheathed on the limited block that described check valve is peripheral, described limited block has First terrace, and described First terrace and described sealing shroud abut against to limit described sealing shroud and described check valve excessively glides.
8. injection needle as claimed in claim 6 seals structure with fluid injection cup, it is characterized in that: also include being positioned at described second containing cavity and being sheathed on the limited block that described check valve is peripheral, described limited block has second step face, and described flexible member is located between described second step face and described sealing shroud.
9. injection needle as claimed in claim 1 seals structure with fluid injection cup, it is characterized in that: the periphery of described injection needle lower end is provided with fluid injection syringe needle sealing ring, when described injection needle connects with described check valve, described fluid injection syringe needle sealing ring realizes the sealing of described injection needle and described check valve.
10. a priming device, it is characterised in that: include that the injection needle as described in any one of claim 1～9 seals structure with fluid injection cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521142830.4U CN205452425U (en) | 2015-12-31 | 2015-12-31 | Priming device and annotate liquid needle and annotate liquid cup seal structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521142830.4U CN205452425U (en) | 2015-12-31 | 2015-12-31 | Priming device and annotate liquid needle and annotate liquid cup seal structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205452425U true CN205452425U (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521142830.4U Active CN205452425U (en) | 2015-12-31 | 2015-12-31 | Priming device and annotate liquid needle and annotate liquid cup seal structure thereof |
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| CN (1) | CN205452425U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343754A (en) * | 2018-03-30 | 2018-07-31 | 湖南元德科技有限公司 | Vacuum liquid filling valve |
| CN110350140A (en) * | 2019-08-06 | 2019-10-18 | 博众精工科技股份有限公司 | It is a kind of can simultaneously when vacuumizing fluid injection structure |
| CN110514043A (en) * | 2019-08-12 | 2019-11-29 | 李居强 | Filling apparatus and its charging method |
| CN110600670A (en) * | 2019-10-30 | 2019-12-20 | 东莞市德瑞精密设备有限公司 | Liquid injection cup and liquid injection method thereof |
| CN112117429A (en) * | 2020-09-11 | 2020-12-22 | 珠海冠宇电池股份有限公司 | Liquid injection device, liquid injection system of button cell and liquid injection method thereof |
-
2015
- 2015-12-31 CN CN201521142830.4U patent/CN205452425U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343754A (en) * | 2018-03-30 | 2018-07-31 | 湖南元德科技有限公司 | Vacuum liquid filling valve |
| CN108343754B (en) * | 2018-03-30 | 2024-02-09 | 湖南元德科技有限公司 | Vacuum liquid injection valve |
| CN110350140A (en) * | 2019-08-06 | 2019-10-18 | 博众精工科技股份有限公司 | It is a kind of can simultaneously when vacuumizing fluid injection structure |
| CN110514043A (en) * | 2019-08-12 | 2019-11-29 | 李居强 | Filling apparatus and its charging method |
| CN110514043B (en) * | 2019-08-12 | 2021-03-26 | 李居强 | Filling device and filling method thereof |
| CN110600670A (en) * | 2019-10-30 | 2019-12-20 | 东莞市德瑞精密设备有限公司 | Liquid injection cup and liquid injection method thereof |
| CN112117429A (en) * | 2020-09-11 | 2020-12-22 | 珠海冠宇电池股份有限公司 | Liquid injection device, liquid injection system of button cell and liquid injection method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |