CN215451500U

CN215451500U - Lithium battery for tooth washing device

Info

Publication number: CN215451500U
Application number: CN202122320300.6U
Authority: CN
Inventors: 范国义
Original assignee: Hangzhou Weihong Energy Technology Co ltd
Current assignee: Hangzhou Weihong Energy Technology Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-01-07
Anticipated expiration: 2031-09-24

Abstract

A lithium battery for a tooth washing device comprises an aluminum-plastic film, a winding core and electrolyte, wherein the winding core and the electrolyte are sealed in the aluminum-plastic film; the positive and negative current collectors of the winding core are respectively welded with a tab, the tab extends to the outside of the aluminum-plastic film, the top sealing edge is divided into a first sealing area close to the winding core and a second sealing area far away from the winding core, the tab wrapping the tab adhesive passes through the first sealing area between the surface A and the surface B of the aluminum-plastic film, and the surface A, the surface B and the tab adhesive are in thermal composite connection; two seal district departments, be equipped with the complex film between the A face and the B face of plastic-aluminum membrane, have utmost point ear to pass between complex film and the B face, the length of complex film surpasss the A face, and A face, B face and compound membrane heat recombination are connected, compare with prior art, wrap up the circuit part after complex film and plastic-aluminum membrane hot melt are compound, play waterproof effect of sealing, low in production cost, the volume production of being convenient for realizes.

Description

Lithium battery for tooth washing device

Technical Field

The utility model relates to the technical field of lithium batteries, in particular to a lithium battery for a tooth washing device.

Background

At present, people pay more and more attention to the protection of the oral cavity, the tooth washing device is gradually popularized, and a plurality of oral cavity diseases can influence the health and confidence of people; because the water pump is arranged in the tooth washing device, the water pump needs a battery for power supply, the cylindrical battery is mainly used for a long time, the volumetric specific energy density of the cylindrical battery is far smaller than that of a soft package lithium battery, but the soft package lithium battery is not convenient to fix in the tooth washing device and is fixed by using glue, and the later maintenance operation is not convenient; and the soft package lithium battery in the tooth washing device is easy to contact with water vapor, so that potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a lithium battery for a dental rinser, which is easily disassembled and assembled and prevents moisture from contacting a circuit part of the lithium battery for a long time.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

a lithium battery for a tooth washing device comprises an aluminum plastic film, a winding core and electrolyte, wherein the winding core and the electrolyte are sealed in the aluminum plastic film, the winding core is formed by overlapping and winding a diaphragm, an anode substrate, the diaphragm and a cathode substrate, the electrolyte plays a role of conducting ions, the winding core is wrapped in a thermal compounding and sealing mode after the aluminum plastic film is folded in half, side sealing edges are formed on two sides of the aluminum plastic film after the thermal compounding, a top sealing edge is formed at the top, and the side sealing edges are folded at an angle of 90 degrees; the winding core comprises a winding core anode substrate, a winding core cathode substrate, a cathode current collector, a positive electrode and a negative electrode current collector, wherein the winding core anode substrate is provided with the positive electrode current collector, the winding core cathode substrate is provided with the negative electrode current collector, the positive electrode current collector and the negative electrode current collector are respectively welded with a pole lug, the pole lug extends to the outside of the aluminum-plastic film, the top sealing edge is divided into a first sealing area close to the winding core and a second sealing area far away from the winding core, the first sealing area and the second sealing area comprise parts of which the top sealing edge is bent along with the side sealing edge, the bottom of the aluminum-plastic film is an A surface after the aluminum-plastic film is folded, and the top of the aluminum-plastic film is a B surface;

at the first sealing area, a tab wrapped with tab glue penetrates between the surface A and the surface B of the aluminum plastic film, the surface A and the surface B are in thermal composite connection with the tab glue, and the tab is sealed by the tab glue;

at the secondary sealing area, a composite film is arranged between the surface A and the surface B of the aluminum-plastic film, a tab penetrates through the composite film and the surface B, the length of the composite film exceeds the surface A, the surface B and the composite film are in thermal composite connection at the secondary sealing area, and the contact part of the tab, the surface B and the composite film cannot be thermally compounded;

the outer end part of the lug is welded with a protection plate, the protection plate is attached to the part, exceeding the surface A, of the composite film, the part, exceeding the surface A, of the composite film is turned over to wrap the outside of the surface B, the lug is bent along with the part, and one side of the protection plate, provided with a component, faces upwards.

As a further improvement, the side seal is bent and is leaned on the side of the winding core, the side seal is generally arranged at an angle of 90 degrees with the horizontal plane, the outer side of the side seal is provided with an insert, the insert comprises a fixing part and a connecting part, the fixing part is inserted into the side seal, and the connecting part is used for being connected with the inner structure of the product.

Compared with the prior art, the utility model has the following beneficial effects:

1. in the lithium battery for the tooth washing device, the composite film and the aluminum plastic film are subjected to hot melting compounding and then wrap the circuit part, so that the sealing and waterproof effects are achieved, the production cost is low, and the mass production is convenient to realize;

2. in the lithium battery for the tooth washing device, the plug-in unit is conveniently connected with the side sealing edge of the aluminum plastic film, the lithium battery is assisted to be fixed in a product and is convenient to disassemble and assemble, the connecting part of the plug-in unit can change the connecting structure according to different application environments, the plug-in unit is a small injection molding unit, mass production is facilitated, and the structure is simple.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a rear view of the present invention.

FIG. 3 is a schematic structural view of a cross-section of the second region A-A in FIG. 1.

Fig. 4 is a schematic structural view of the positional relationship of the materials of the top seal edge of the present invention.

Fig. 5 is a schematic structural diagram of another embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

First embodiment

As shown in fig. 1 to 4, a lithium battery for a tooth washing device, including the plastic-aluminum membrane 3 and sealed core 1 and electrolyte in the plastic-aluminum membrane 3, the 3 both sides of plastic-aluminum membrane after the fifty percent discount heat is compound are side banding 32, and the top is a top banding 31, and positive and negative current collectors of core 1 weld with

utmost point ear

21, 22 respectively, and 3 outsides are arranged in plastic-aluminum membrane to

utmost point ear

21, 22, top banding 31 divide into one and seals district 3a and two and seal district 3b, and a district 3a is close to core 1: the sealing area 3a is positioned, the

tabs

21 and 22 wrapping the tab glue 23 penetrate between the surface A33 and the surface B34, and the surface A33, the surface B34 and the tab glue 23 are in thermal composite connection; and at the position of the second sealing area 3B, a composite film 5 is arranged between the surface A33 and the surface B34,

tabs

21 and 22 penetrate between the composite film 5 and the surface B34, and the surface A33 and the surface B34 are in thermal composite connection with the composite film 5.

The length of the composite film 5 exceeds the a surface 33, and the composite film 5 is made of hot-melt plastic materials, such as: PE, PP, PS and the like, the outer end parts of the

tabs

21 and 22 are welded with the protection plate 4, the protection plate 4 is attached to the part, exceeding the A surface 33, of the composite film 5, the part, exceeding the A surface 33, of the composite film 5 is turned over to wrap the outside of the B surface 34, the free end of the composite film 5 and the B surface 34 are bound and wound through the insulating adhesive tape 7 and then are glued and fixed, the electric wire 41 on the protection plate 4 is wound out from the end part of the composite film 5 and is covered and fixed by the insulating adhesive tape 7, the composite film 5 and the aluminum plastic film 3 are hot-melted and compounded to wrap the circuit part, the sealing and waterproof effects are achieved, the production cost is low, and mass production is facilitated.

One end of the tab 21 is welded with the positive current collector in the battery cell 1, the other end is welded with the positive electrode of the protection plate 4, one end of the tab 22 is welded with the negative current collector in the battery cell 1, and the other end is welded with the negative electrode of the protection plate 4.

Side banding 32 is buckled and is pasted and lean on in the 1 side of book core, and side banding 32 lateral surface is equipped with plug-in components 6, plug-in components 6 include fixed part 61 and connecting portion 62, and fixed part 61 is pegged graft with side banding 32, connecting portion 62 are the picture peg, are convenient for fix a position fast.

Second embodiment

As shown in fig. 5, the present embodiment is different from the first embodiment in that: the connecting portion 62 is a screw interface, and is applicable to a screw fixing mode, convenient to fix and easy to detach.

The lithium battery is 90 mm long, 3C current is used for discharging, the discharging time is longer than 18 minutes, the ternary material is used as the anode, the discharging platform is more than 3.2V, the lithium battery is convenient to fix and disassemble, water vapor is effectively prevented from contacting with a circuit part, potential safety hazards are reduced, and the lithium battery is suitable for a tooth washing device.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A lithium battery for a tooth washing device comprises an aluminum plastic film (3), a winding core (1) and electrolyte, wherein the winding core (1) and the electrolyte are sealed in the aluminum plastic film (3), the aluminum plastic film (3) is folded in half and wraps the winding core (1) in a heat compounding manner, side sealing edges (32) are formed at two sides of the aluminum plastic film (3) after the heat compounding, and a top sealing edge (31) is formed at the top of the aluminum plastic film; the positive and negative current collectors of the winding core (1) are respectively welded with the tabs (21 and 22), the tabs (21 and 22) extend to the outside of the aluminum-plastic film (3), and the top sealing edge (31) is divided into one sealing area (3 a) close to the winding core (1) and two sealing areas (3 b) far away from the winding core (1):

at the sealing area (3 a), tabs (21 and 22) wrapping the tab glue (23) penetrate between the surface A (33) and the surface B (34) of the aluminum plastic film (3), and the surface A (33) and the surface B (34) are in thermal composite connection with the tab glue (23);

at the secondary sealing area (3B), a composite film (5) is arranged between the surface A (33) and the surface B (34) of the aluminum plastic film (3), tabs (21, 22) penetrate between the composite film (5) and the surface B (34), and the surface A (33) and the surface B (34) are in thermal composite connection with the composite film (5);

the length of the composite film (5) exceeds the surface A (33), the outer end parts of the lugs (21 and 22) are welded with the protective plate (4), the protective plate (4) is attached to the part, exceeding the surface A (33), of the composite film (5), and the part, exceeding the surface A (33), of the composite film (5) is folded to wrap the outside of the surface B (34).

2. The lithium battery for a tooth cleaner according to claim 1, characterized in that the side sealing edge (32) is bent to be attached to the side surface of the winding core (1), an insert (6) is arranged on the outer side surface of the side sealing edge (32), the insert (6) comprises a fixing portion (61) and a connecting portion (62), and the fixing portion (61) is inserted into the side sealing edge (32).

3. A lithium battery for a dental prophylaxis device according to claim 2, characterized in that the connection part (62) is a plug-in plate.

4. A lithium battery for a dental prophylaxis device according to claim 2, characterized in that the connection part (62) is a screw interface.

5. A lithium battery for a dental rinser as claimed in claim 1, characterized in that the free end of the composite membrane (5) is fixed adhesively to the B face (34) by means of an insulating tape (7).

6. A lithium battery for a dental rinser as claimed in claim 1, characterized in that the composite film (5) is of a plastic material with thermofusible properties.