CN207651537U

CN207651537U - Button cell

Info

Publication number: CN207651537U
Application number: CN201721787578.1U
Authority: CN
Inventors: 黄凯; 韩建国; 周超; 唐晶莹
Original assignee: Zhuhai Micro Industry Co Ltd
Current assignee: Zhuhai Micro Industry Co Ltd
Priority date: 2017-12-15
Filing date: 2017-12-15
Publication date: 2018-07-24
Anticipated expiration: 2027-12-15

Abstract

The utility model is related to a kind of button cells comprising shell and the electrode isolation component being set in the shell, the electrode isolation component include at least one anode and at least one cathode；The shell includes conductive head cover, and the head cover is electrically connected at least one anode and at least one cathode alternative one；The head cover includes at least one fairlead, electric conductor is equipped at least one fairlead, the insulating seal for insulating with the head cover, another electric connection of the electric conductor and both at least one anode and at least one cathode are provided between the hole wall and the electric conductor of at least one fairlead；The electric conductor of the button cell is integrally formed to an assembly with insulating seal, small, easy to assembly.

Description

Button cell

Technical field

The utility model is related to a kind of batteries, more specifically to a kind of button cell.

Background technology

Button cell in known technology generally includes the shell being made of two conductive case halfs, two shells Body half portion is respectively lower casing and head cover.In general, there is lower casing positive polarity, head cover there is negative polarity, positive and negative electrode to be located at button electricity The both ends in pond.When some application scenarios such as need to install protection board, because the positive and negative input interface of protection board is respectively required for and button The positive and negative electrode of battery is electrically connected, therefore its negative input interface is drawn from head cover, and positive input interface is then drawn simultaneously from lower casing Along shell around to the top of head cover, space availability ratio is relatively low.

In Chinese patent application, No. 201710901425.3 provides a kind of button cell, the shell packet of the button cell Conductive end wall is included, which includes at least one fairlead, electric conductor is equipped at least one fairlead, this at least one The insulating seal for insulating with the end wall is provided between the hole wall of a fairlead and the electric conductor.The button cell The electric conductor with the end wall and on the end wall is electrically connected positive and negative electrode respectively, thus all in the same of the button cell Side.But the electric conductor of the button cell and insulating seal structural volume are big, assembling is inconvenient.

Utility model content

The technical problem to be solved by the present invention is to for the drawbacks described above of the prior art, provide a kind of improved Button cell.

Technical solution adopted by the utility model to solve its technical problems is：Construct a kind of button cell comprising extremely A few anode and at least one cathode；The shell includes conductive head cover, the head cover and at least one anode It is electrically connected at least one cathode alternative one；The head cover includes at least one fairlead, described at least one to draw Electric conductor is equipped in portalling, be provided between the hole wall and the electric conductor of at least one fairlead for the head cover The insulating seal of insulation, the electric conductor are another electrical with both at least one anode and at least one cathode Connection；The electric conductor is integrally formed to an assembly with the insulating seal.

In some embodiments, the anode is electrically connected with the head cover, and the cathode electrically connects with the electric conductor It connects.

In some embodiments, the button cell further includes liquid injection hole, for injecting electrolyte into shell.

In some embodiments, the liquid injection hole is same with the fairlead.

In some embodiments, the electric conductor and the insulating seal integrated injection molding, the insulating seal Hermetically plug is set in the fairlead, and the electric conductor is longitudinally arranged in the insulating seal, and its both ends is respectively from this Expose at the both ends of insulating seal.

In some embodiments, the electric conductor is in rigidity.

In some embodiments, the electric conductor is in flexibility.

In some embodiments, the shell includes that top is equipped with the cylindric lower casing of opening and is in tabular and covers The periphery of head cover in the opening, the head cover is hermetically tied by way of laser welding with the open edge of the lower casing It is combined.

In some embodiments, the button cell further includes the fixed plate being arranged above the insulating seal, is used In fixation of the insulating seal in the fairlead.

In some embodiments, the electrode isolation component uses the form of helix windings, the electrode isolation component Central axes are overlapped with the central axes of the shell.

Implement the utility model at least to have the advantages that：Electric conductor and the insulating seal one of the button cell It is molded into an assembly, it is small, it is easy to assembly；Moreover, liquid injection hole can be same with fairlead, noted by fairlead After the completion of liquid, the assembly of electric conductor and insulating seal is filled in, without additionally opening up liquid injection hole.

Description of the drawings

Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing：

Fig. 1 is the longitudinal profile structure schematic of the button cell in the utility model some embodiments.

Specific implementation mode

The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model, It states.The better embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms It realizes, however it is not limited to embodiments described herein.On the contrary, the purpose of providing these embodiments is that making new to this practicality The disclosure of type understands more thorough and comprehensive.

It should be noted that unless otherwise clearly defined and limited, term " setting ", " installation ", " connected ", " connection " It shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or integrally connected；Can be that machinery connects It connects, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary in two elements The connection in portion.For the ordinary skill in the art, it can understand above-mentioned term in the present invention with concrete condition Concrete meaning.

Unless otherwise defined, all of technologies and scientific terms used here by the article is led with the technology for belonging to the utility model The normally understood meaning of technical staff in domain is identical.Terminology used in the description of the utility model herein only be The purpose of description specific embodiment, it is not intended that in limitation the utility model.

Fig. 1 shows the button cell in some embodiments of the utility model, the button cell include sealing shell 1, Electrode isolation component 2, insulating seal 3 and electric conductor 4.Shell 1, which includes top, has the lower casing 11 being open and therewith phase The conductive head cover 12 matched, opens up that there are one fairleads 123 on the head cover 12.It is to be appreciated that the quantity of the fairlead 123 It is also not limited to one, two or more can also be applied.Electrode isolation component 2 is set in the shell 1 comprising extremely A few anode 21 and at least one cathode 22 and the slider 23 between anode 21 and cathode 22, anode 21 and top Lid 12 is electrically connected, and cathode 22 is electrically connected with electric conductor 4.It is to be appreciated that in some embodiments, it is also possible to being cathode 22 It is electrically connected with head cover 12, anode 21 is electrically connected with electric conductor 4.Insulating seal 3 and electric conductor 4 are integrally formed to a group It is fit.Electric conductor 4 is longitudinal to be arranged in insulating seal 3, and its both ends is exposed from the both ends of insulating seal 3 respectively.Insulation Seal 3 is hermetically filled in fairlead 123, and electric conductor 4 and 12 phase of head cover are insulated.

Again as shown in Figure 1, shell 1 can be in oblate column in some embodiments comprising flat bottom region and therewith Parallel flat top region.Shell 1 may include that top is equipped with the cylindric lower casing 11 of opening, head cover 12 in some embodiments In tabular and it is covered in the opening.Lower casing 11 and head cover 12 can be used metal material and be made, and the periphery of head cover 12 can lead to The mode and the open edge of lower casing 11 for crossing laser welding are sealingly joined together.In some embodiments, on head cover 12 also Liquid injection hole (not shown) there are one can opening up, for injecting electrolyte into shell 1.The button cell may also include closeouts (not shown), for after fluid injection completion, which to be blocked.

The form of helix windings can be used in electrode isolation component 2, can also use the form of lamination.It is real shown in Fig. 1 It applies in example, electrode isolation component 2 is the form of helix windings, and its central axes is overlapped with the central axes of shell 1.

Preferably, insulating seal 3 and electric conductor 4 can be used the mode of integrated injection molding and form an assembly. In some embodiments, electric conductor 4 can be used rigid conductive material and be made, to enhance crushing resistance.In further embodiments, it leads Electric body 4 can also be used conductive material flexible and be made, and in this way when needing to install the occasion of protection board, electric conductor 4 can be direct Protection board or load are connected, extra soldered conducting wire is not needed.

It is to be appreciated that the utility model can be reduced using insulating seal 3 and 4 integrally formed mode of electric conductor Volume, ease of assembly.And such mode is used, liquid injection hole can be same with fairlead 123, pass through 123 fluid injection of fairlead After the completion, it fills in insulating seal 3 and the assembly of electric conductor 4 is sealed, without additionally opening up liquid injection hole.

In some embodiments, which further includes the fixed plate 5 being arranged above insulating seal 3, for exhausted Fixation of the edge seal 3 in fairlead 123.

Following steps can be used when making in above-mentioned button cell：

(1) lower casing 11 and head cover 12 are provided, form fairlead 123 on head cover 12；

(2) insulating seal 3 and electric conductor 4 are provided, and by insulating seal 3 and 4 integrated injection molding of electric conductor at one A assembly；

(3) electrode isolation component 2 is set in lower casing 1；

(4) electrolyte is injected into shell 1 by fairlead 123；

(5) head cover 12 is welded in the opening of lower casing 11 by way of laser welding, forms shell 1；

(6) assembly formed after 4 integrated injection molding of insulating seal 3 and electric conductor is tucked into fairlead 123；

(7) mounting plate 5.

Above-mentioned label does not represent sequencing, those skilled in the art said sequence can be converted and not from Open the scope of protection of the utility model.

It should be understood that above example only expresses preferred embodiments of the present invention, description is more specific With it is detailed, but it should not be understood as limiting the scope of the patent of the utility model；It should be pointed out that for this field Those of ordinary skill for, without departing from the concept of the premise utility, can to above-mentioned technical characterstic carry out freely Combination, various modifications and improvements can be made, these belong to the scope of protection of the utility model；Therefore, all with this practicality The equivalents and modification that novel right is done, should all belong to the covering scope of the utility model claims.

Claims

1. a kind of button cell, including shell and the electrode isolation component that is set in the shell, the electrode isolation component Including at least one anode and at least one cathode；The shell includes conductive head cover, the head cover and described at least one A anode and at least one cathode alternative one are electrically connected；The head cover includes at least one fairlead, it is described at least Electric conductor is equipped in one fairlead, be provided between the hole wall and the electric conductor of at least one fairlead for institute The insulating seal of head cover insulation is stated, both the electric conductor and at least one anode and at least one cathode are another One is electrically connected, which is characterized in that the electric conductor is integrally formed to an assembly with the insulating seal.

2. button cell according to claim 1, which is characterized in that the anode is electrically connected with the head cover, described Cathode is electrically connected with the electric conductor.

3. button cell according to claim 1, which is characterized in that the button cell further includes liquid injection hole, for past Electrolyte is injected in shell.

4. button cell according to claim 3, which is characterized in that the liquid injection hole is same with the fairlead.

5. button cell according to claim 1, which is characterized in that the electric conductor is integrally noted with the insulating seal It is moulded into type, the insulating seal is hermetically filled in the fairlead, and the electric conductor is longitudinally arranged in the insulated enclosure In body, and its both ends is exposed from the both ends of the insulating seal respectively.

6. button cell according to claim 5, which is characterized in that the electric conductor is in rigidity.

7. button cell according to claim 5, which is characterized in that the electric conductor is in flexibility.

8. button cell according to claim 1, which is characterized in that the shell includes the cylindrical shape that top is equipped with opening Lower casing and be in tabular and the head cover that is covered in the opening, the periphery of the head cover by way of laser welding with it is described The open edge of lower casing is sealingly joined together.

9. button cell according to claim 1, which is characterized in that the button cell further includes being arranged in the insulation Fixed plate above seal is used for fixation of the insulating seal in the fairlead.

10. button cell according to claim 1, which is characterized in that the electrode isolation component is using helix windings The central axes of form, the electrode isolation component are overlapped with the central axes of the shell.