CN217691308U

CN217691308U - Packaging device for battery embedded air pressure sensor

Info

Publication number: CN217691308U
Application number: CN202220180421.7U
Authority: CN
Inventors: 孙磊; 陈浩森; 宋维力; 陈紫升; 崔如瑶
Original assignee: Beijing Institute of Technology BIT
Current assignee: Beijing Institute of Technology BIT
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-10-28
Anticipated expiration: 2032-01-21

Abstract

The utility model discloses a bury baroceptor's packaging hardware in battery, wherein, this bury baroceptor's packaging hardware in battery includes: the packaging structure comprises a sensor mounting space, an air pressure conducting medium is arranged in the sensor mounting space, the packaging structure and the air pressure conducting medium are configured to sense the air pressure change in the battery and conduct the air pressure change to an air pressure sensor arranged in the mounting space. The air pressure sensor is packaged, and the safety risk problem caused by interference between a sensor assembly and an electrode position is avoided.

Description

Packaging device for battery embedded air pressure sensor

Technical Field

The utility model relates to a battery technology field especially relates to a bury baroceptor's packaging hardware in battery.

Background

In the related art, the positive electrode and the negative electrode of the battery are limited by clamping positions inside the battery, for example, the positive plate penetrates to the bottom of the battery cell, when a sensor assembly is added, the sensor assembly interferes with the position of the electrode, and thus safety problems are easily caused. Therefore, how to better realize the packaging of the sensor in the battery becomes a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to solve at least to some extent one of the technical problems of the related art.

Therefore, the utility model aims to provide an bury baroceptor's packaging hardware in battery.

In order to achieve the above object, the utility model discloses bury baroceptor's packaging hardware in battery, include: the packaging structure comprises a sensor mounting space, an air pressure conducting medium is arranged in the sensor mounting space, the packaging structure and the air pressure conducting medium are configured to sense the air pressure change in a battery and conduct the air pressure change to an air pressure sensor arranged in the mounting space.

According to the utility model discloses bury baroceptor's packaging hardware in battery, through setting up the packaging structure who comprises flexible conducting material, packaging structure includes sensor installation space, there is atmospheric pressure conduction medium in the sensor installation space, packaging structure and atmospheric pressure conduction medium configuration are atmospheric pressure change in the induction battery, and change the conduction with atmospheric pressure to the baroceptor that sets up in installation space, realized encapsulating baroceptor, avoided sensor assembly and electrode position to form the interference, the safety risk problem that leads to.

In addition, according to the utility model discloses a bury baroceptor's packaging hardware in battery still has following additional technical characteristics:

in an embodiment of the present invention, the present invention further includes: the sensor installation space comprises a first groove and a second groove, wherein the first groove or/and the second groove are/is provided with a baroceptor chip, a groove which is not provided with the baroceptor chip is arranged along the first groove, the second groove is oppositely folded, and the groove which is provided with the baroceptor chip is coincided to form the sensor installation space.

In an embodiment of the present invention, the air pressure sensor chip is electrically and fixedly connected to the positive electrode and the negative electrode of the battery cell.

In an embodiment of the present invention, the positive and negative poles of the baroceptor chip are along the two ends of the baroceptor chip extend, the one end of the positive and negative poles and the baroceptor chip are fixedly connected, the other end of the positive and negative poles is located at the positive and negative poles of the battery top cover and between the positive and negative poles of the battery core, and the other end of the positive and negative poles is fixedly connected with the positive and negative poles of the battery top cover and the positive and negative poles of the battery core.

In an embodiment of the present invention, the back of the baroceptor chip is provided with positive and negative electrode fixed connection positions, and positive and negative electrode ends of the baroceptor chip are fixed to the positive and negative electrode fixed connection positions.

In an embodiment of the present invention, the groove not provided with the air pressure sensor chip is provided with a deformable structure.

In an embodiment of the present invention, the sensor mounting space is an aluminum-plastic film cavity.

In an embodiment of the present invention, the material of the aluminum plastic film cavity comprises a three-layer composite film, and the three-layer composite film comprises a polypropylene material layer, an aluminum foil material layer, and a nylon material layer.

In an embodiment of the present invention, the nylon layer is wrapped by a plastic material.

In an embodiment of the present invention, the height of the aluminum-plastic film cavity is 3mm to 4mm.

In an embodiment of the present invention, the length of the aluminum-plastic film cavity is 17mm, and the width thereof is 23mm.

In an embodiment of the present invention, the length of the aluminum-plastic film cavity is 16mm, and the width thereof is 18mm.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which,

fig. 1 is a schematic structural view of a sensor installation space according to an embodiment of the present invention;

fig. 2 is a perspective view of a sensor mounting space according to an embodiment of the present invention;

fig. 3 is a schematic diagram of an unpackaged sensor mounting space according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a packaging device of a battery embedded pressure sensor according to an embodiment of the present invention;

fig. 5 is a perspective view of a package device of a battery embedded pressure sensor according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of an air pressure sensor chip according to an embodiment of the present invention.

Reference numerals:

1. a sensor mounting space; 11. a first groove; 12. a second groove; 13. an air pressure sensor chip; 14. the positive lug of the positive pole of the air pressure sensor chip; 15. the positive tab of the battery top cover; 16. a positive tab of a battery cell; 17. a negative electrode lug of the negative electrode of the air pressure sensor chip; 18. a negative tab of the battery top cap; 19. a battery cell negative tab; 20. a battery positive plate; 21. a negative plate; 22. a battery separator; 31. the positive and negative electrodes are fixedly connected; 32. and (5) gluing the tab.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The following describes a package device of a battery embedded pressure sensor according to an embodiment of the present invention with reference to fig. 1 to 6.

According to the utility model discloses bury baroceptor's packaging hardware in battery, include: the packaging structure comprises a sensor mounting space, an air pressure conducting medium is arranged in the sensor mounting space, the packaging structure and the air pressure conducting medium are configured to sense the air pressure change in the battery and conduct the air pressure change to an air pressure sensor arranged in the mounting space.

The gas pressure conducting medium is understood to be a gas, wherein the gas may be air.

That is, the air pressure change in the battery is transmitted to the air pressure sensor through the packaging structure and the air pressure change in the gas sensing battery, so that the air pressure sensor obtains the air pressure change in the battery.

As shown in fig. 1, the sensor installation space 1 includes a first groove 11 and a second groove 12, the first groove 11 or/and the second groove 12 is/are provided with an air pressure sensor chip 13, the groove which is not provided with the air pressure sensor chip 13 is folded along the space between the first groove 11 and the second groove 12, and the groove which is provided with the air pressure sensor chip 13 coincides with the groove to form the sensor installation space 1.

Wherein, a perspective view of the sensor installation space 1 can be referred to as shown in fig. 2.

A schematic diagram of the sensor installation space 1 without packaging can be referred to as shown in fig. 3.

In order to realize that the battery supplies power to baroceptor chip 13 the embodiment of the utility model provides an in, baroceptor chip 13 and the electric fixed connection of positive negative pole of battery electricity core.

In order to prevent the sensor module from interfering with the position of the battery electrode, the embodiment of the utility model provides an in, atmospheric pressure sensor chip 13's positive negative pole extends along atmospheric pressure sensor chip 13 both ends, positive negative pole's one end and atmospheric pressure sensor chip 13 fixed connection, and positive negative pole's the other end is located between the positive negative pole electricity of positive negative pole post and electric core of battery top cap, and the positive negative pole electricity of positive negative pole post and electric core of fixed connection battery top cap.

For example, as shown in fig. 4, the positive electrode and the negative electrode of the battery pressure sensor chip 13 extend along two ends of the pressure sensor chip 13, one end of the positive electrode tab 14 of the positive electrode of the pressure sensor chip is fixedly connected with one side of the pressure sensor chip 13, the other end of the positive electrode tab 14 is located between the positive electrode tab 15 of the battery top cover and the positive electrode tab 16 of the battery cell, and the positive electrode tab 14 of the positive electrode of the pressure sensor chip is ultrasonically welded with the positive electrode tab 15 of the battery top cover and the positive electrode tab 16 of the battery cell; negative pole ear 17 one end and the 13 opposite side fixed connection of air pressure sensor chip negative pole of air pressure sensor chip, the other end of negative pole ear 17 is located between the negative pole ear 18 and the battery electricity core negative pole ear 19 of battery top cap, and the negative pole ear 17 of air pressure sensor chip negative pole and the negative pole ear 18 and the battery electricity core negative pole ear 19 of battery top cap carry out ultrasonic welding, and then realized that air pressure sensor's packaging hardware buries in the battery, avoided sensor assembly and the positive piece 20 of battery and negative pole piece 21 position interference, the safety risk problem that leads to. Wherein the battery diaphragm 22 is an important medium for obstructing the positive plate 20 and the negative plate 21 of the battery. Wherein the perspective view of fig. 4 may be as shown in fig. 5.

After the positive and negative lugs of the positive and negative electrodes of the air pressure sensor chip are subjected to ultrasonic welding, the sensor installation space 2 can be packaged in a hot pressing mode. Before packaging, the groove without the pressure sensor chip 13 can sense the internal air pressure by squeezing, and correspondingly, the first groove 11 or the second groove 12 without the pressure sensor chip 13 is provided with a deformable structure.

Wherein, but deformable structure includes soft sponge etc. nevertheless, the utility model discloses do not do the restriction.

For example, before packaging, a soft sponge is filled in the first groove 11 or the second groove 12 where the air pressure sensor chip 13 is not disposed, so that the external air pressure is sensed by pressing the internal air pressure.

In order to make it easier for those skilled in the art to understand the present application, as shown in fig. 6, the back of the baroceptor chip 13 is provided with positive and negative electrode fixed connection positions 31, and one end of the positive and negative electrodes of the baroceptor chip 13 is fixed at the positive and negative electrode fixed connection positions 31.

Wherein, a tab adhesive 32 is pasted at the tab of the positive and negative tabs of the air pressure sensor chip 13 for hot pressing to form a nickel-aluminum tab.

That is to say, the positive and negative electrodes of the air pressure sensor chip 13 pass through the nickel-aluminum tabs, the positive and negative electrodes of the nickel-aluminum tabs are ultrasonically welded with the positive and negative poles of the battery top cover and the positive and negative electrode tabs of the battery core, and the air pressure sensor chip 13 is powered by the battery, so that the problem of safety risk caused by position interference of a sensor assembly and a battery electrode is avoided.

Because the back of baroceptor chip 13 is equipped with the fixed connection position 31 of positive negative pole, the utmost point ear accessible electric iron welding of baroceptor chip 13 is in the both sides of the fixed connection position 31 of positive negative pole, and the hot pressing position produces a large amount of heats when both sides hot pressing encapsulation short circuit phenomenon in can not taking place, probably leads to utmost point ear glue 32 to locate the short circuit, consequently, in order to avoid the short circuit problem the embodiment of the utility model provides an in, adopt insulating protection to glue and carry out whole parcel with baroceptor chip 13, positive negative pole fixed connection position 31 to the position that utmost point ear glue 32.

Wherein, insulating protection glue includes but not only is limited to high temperature and stops gluey, the utility model discloses do not do the restriction to this.

In order to avoid producing the interface problem when current gluey class encapsulates baroceptor, and soak for a long time and lead to electrolyte to get into baroceptor the embodiment of the utility model provides an in, sensor installation space 1 is the plastic-aluminum membrane cavity.

The material of the aluminum-plastic film cavity comprises a three-layer composite film, wherein the three-layer composite film comprises a polypropylene material layer, an aluminum foil material layer and a nylon material layer.

For example, the innermost layer of the aluminum-plastic film cavity can be a polypropylene material layer, the hot viscosity is high, the aluminum-plastic film cavity is used for fusion when the upper end enclosure and the lower end enclosure are pressurized at high temperature, the middle layer is an aluminum foil material layer which is a carrier of a heat-sealing material and prevents moisture from permeating, and the outermost layer is a nylon material layer, has certain puncture resistance and plays a role in decoration.

In order to avoid the outmost nylon layer to be corroded by electrolyte, in the embodiment of the utility model, can adopt plastic material to wrap up the nylon layer, plastic material includes PI polyimide material or polypropylene material.

Be applicable to the baroceptor chip of different models for sensor installation space the embodiment of the utility model provides an in, the length of plastic-aluminum membrane cavity is 17mm, the width is 23mm.

In another embodiment of the present invention, the aluminum-plastic film cavity has a length of 16mm and a width of 18mm.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A packaging device for a battery-embedded pressure sensor is characterized by comprising:

the packaging structure comprises a sensor mounting space, an air pressure conducting medium is arranged in the sensor mounting space, the packaging structure and the air pressure conducting medium are configured to sense air pressure change in a battery and conduct the air pressure change to an air pressure sensor arranged in the mounting space.

2. The package assembly for a gas pressure sensor embedded in a battery as claimed in claim 1, wherein the sensor mounting space comprises a first groove and a second groove, the first groove or/and the second groove is provided with a gas pressure sensor chip, the groove without the gas pressure sensor chip is folded along the first groove and the second groove, and the groove with the gas pressure sensor chip is overlapped to form the sensor mounting space.

3. The apparatus for encapsulating an embedded baroceptor in a battery according to claim 2, wherein the baroceptor chip is electrically and fixedly connected to the positive and negative electrodes of the battery cell.

4. The apparatus according to claim 3, wherein the positive electrode and the negative electrode of the pressure sensor chip extend along two ends of the pressure sensor chip, one end of the positive electrode and the negative electrode is fixedly connected to the pressure sensor chip, and the other end of the positive electrode and the negative electrode is located between the positive electrode and the negative electrode of the battery top cover and the positive electrode and the negative electrode of the battery core, and is fixedly connected to the positive electrode and the negative electrode of the battery top cover and the positive electrode and the negative electrode of the battery core.

5. The package assembly for a gas pressure sensor embedded in a battery as claimed in claim 4, wherein the back of the gas pressure sensor chip is provided with positive and negative electrode fixing connection positions, and one ends of the positive and negative electrodes of the gas pressure sensor chip are fixed at the positive and negative electrode fixing connection positions.

6. The package device of an in-cell pressure sensor according to claim 2, wherein the first recess or the second recess not provided with the pressure sensor chip is provided with a deformable structure.

7. The apparatus for packaging a battery embedded pressure sensor as claimed in claim 1, wherein the sensor mounting space is an aluminum-plastic film cavity.

8. The apparatus for packaging a battery embedded pressure sensor as claimed in claim 7, wherein the material of the aluminum plastic film cavity comprises a three-layer composite film, and the three-layer composite film comprises a polypropylene material layer, an aluminum foil material layer, and a nylon material layer.

9. The apparatus for encapsulating an in-cell air pressure sensor as claimed in claim 8, wherein the nylon material layer is wrapped with a plastic material.

10. The apparatus for encapsulating an embedded baroceptor in a battery according to claim 7, wherein the height of the aluminum-plastic film cavity is 3mm to 4mm.

11. The package assembly of an in-cell pressure sensor as claimed in claim 7, wherein the aluminum plastic film cavity has a length of 17mm and a width of 23mm.

12. The package assembly of an in-cell pressure sensor as claimed in claim 7, wherein the aluminum plastic film cavity has a length of 16mm and a width of 18mm.