CN212461792U

CN212461792U - Winding battery cell and electronic cigarette

Info

Publication number: CN212461792U
Application number: CN202020987373.3U
Authority: CN
Inventors: 黄晓涛; 李小龙; 李汝; 温招香; 潘金前; 吴爱深; 罗新耀
Original assignee: Shida Battery Technology Co Ltd
Current assignee: Shida Battery Technology Co Ltd
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2021-02-02
Anticipated expiration: 2030-06-02

Abstract

The utility model discloses a winding electric core and electronic cigarette with the same, wherein the winding electric core comprises a winding core main body, the winding core main body comprises a winding sheet assembly wound into a column shape, the winding sheet assembly comprises a first diaphragm, a negative plate, a second diaphragm and a positive plate which are sequentially stacked, the winding sheet assembly is provided with a head end part, a tail end part and a middle end part, the head end part is arranged in the center of the winding core main body, and the tail end part is arranged at the periphery of the winding core main body; the negative pole piece is provided with a negative pole lug, the positive pole piece is provided with a positive pole lug, one of the positive pole lug and the negative pole lug is arranged between the head end part and the middle end part, and the other one of the positive pole lug and the negative pole lug is arranged between the middle end part and the tail end part. The electronic conduction distance in the pole piece can be effectively shortened, meanwhile, the overlapping of the positive pole lug and the negative pole lug is avoided, and the short circuit is prevented; the structure is simple, the manufacture is convenient, the process and material cost are not required to be increased, and the internal resistance of the battery cell is effectively reduced.

Description

Winding battery cell and electronic cigarette

Technical Field

The utility model relates to a battery technology field, in particular to coiling electricity core and electron cigarette.

Background

The lithium ion winding battery has the advantages of high working voltage, high energy density, good anti-seismic performance and the like, so that the lithium ion winding battery becomes a power battery structure which is widely used at present. However, because the spiral structure is formed by winding a plurality of layers of materials with different thermal physical properties, a high-temperature region is easily formed in the winding core in the using process, so that the electrolyte is decomposed to generate gas, and the battery fails or potential safety hazard is generated; the heating value of the winding core is in direct proportion to the internal resistance of the winding core, and the lower internal resistance of the winding core can obtain better safety performance. For the electronic cigarette, due to the limitation of weight and volume, a hard protective shell is not convenient to be arranged on the winding battery, so that the requirement on the safety performance of the winding core is high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a coiling electricity core and electron cigarette.

The winding battery cell comprises a winding core main body, wherein the winding core main body comprises a winding sheet assembly wound into a column shape, the winding sheet assembly comprises a first diaphragm, a negative plate, a second diaphragm and a positive plate which are sequentially stacked, the winding sheet assembly is provided with a head end part, a tail end part and a middle end part arranged between the head end part and the tail end part, the head end part is arranged in the center of the winding core main body, and the tail end part is arranged at the periphery of the winding core main body; the negative pole piece is provided with a negative pole lug, the positive pole piece is provided with a positive pole lug, one of the positive pole lug and the negative pole lug is arranged between the head end part and the middle end part, and the other one of the positive pole lug and the negative pole lug is arranged between the middle end part and the tail end part.

According to the utility model discloses coiling electricity core has following technological effect at least: one of the positive electrode lug and the negative electrode lug is arranged between the head end part and the middle end part, and the other one of the positive electrode lug and the negative electrode lug is arranged between the middle end part and the tail end part, so that the electronic conduction distance in the pole piece can be effectively shortened, meanwhile, the overlapping of the positive electrode lug and the negative electrode lug is avoided, and the short circuit is prevented; the structure is simple, the manufacture is convenient, the process and material cost are not required to be increased, and the internal resistance of the battery cell is effectively reduced.

According to some embodiments of the utility model, it still includes the casing to coil electric core, it locates to roll up the core main part in the casing, it has electrolyte to fill in the casing, anodal ear with the negative pole ear all wears out the casing, the casing is made by the aluminium membrane, the casing cladding roll up the core main part.

According to some embodiments of the present invention, the positive tab is disposed at a position of one third of the tail end portion, and the negative tab is disposed at a position of two thirds of the tail end portion.

According to the utility model discloses electronic cigarette of second aspect embodiment, including miaow head, cigarette bullet and foretell coiling electric core, the vertical setting of coiling electric core, anodal ear with the negative pole ear is all located coiling electric core upside, the miaow head the coiling electric core the cigarette bullet is from last to setting up down, the miaow head with be equipped with first space between the coiling electric core, anodal ear with the negative pole ear is located in the first space, anodal ear with the negative pole ear respectively with miaow head electric connection, anodal ear with the negative pole ear respectively with cigarette bullet electric connection.

According to the utility model discloses electron cigarette has following technological effect at least: by using the winding battery cell, the battery cell has lower internal resistance and higher safety performance; in positive tab and negative pole ear located first space, carry out the tin soldering when being convenient for assemble, need not to bend positive tab and negative pole ear, prevent to take place the inside short circuit of electric core.

According to some embodiments of the utility model, the electron cigarette still includes the shell, the shell is the tubulose of vertical setting, the miaow head coiling electricity core with the cigarette bullet is all located in the shell.

According to some embodiments of the utility model, be equipped with LED lamp pearl on the miaow head.

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 diagram of a wound electric core according to an embodiment of the first aspect of the present invention;

FIG. 2 is a schematic structural view of the film roll assembly of FIG. 1;

fig. 3 is a schematic structural diagram of an electronic cigarette according to an embodiment of the second aspect of the present invention.

Reference numerals:

the battery comprises a wound battery core 100, a winding sheet assembly 110, a positive sheet 111, a second diaphragm 112, a negative sheet 113, a first diaphragm 114, a head end 115, a tail end 116, a middle end 117, a positive tab 120, a negative tab 130, a shell 200, a cartridge 300 and a microphone 400.

Detailed Description

Reference will now be made in detail to the 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 functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "a" or "an" mean one or more, the terms "a" or "an" mean two or more, the terms larger than, smaller than, exceeding, and the like are understood to include the number, and the terms "larger than, smaller than, within, and the like are understood to include the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

The following describes the winding electric core and the electronic cigarette according to the embodiment of the present invention with reference to fig. 1 to 3.

The winding electric core according to the embodiment of the first aspect of the present invention includes a winding core main body, the winding core main body includes a winding sheet assembly 110 wound into a cylindrical shape, the winding sheet assembly 110 includes a first diaphragm 114, a negative electrode sheet 113, a second diaphragm 112, and a positive electrode sheet 111 stacked in sequence, the winding sheet assembly 110 has a head end portion 115, a tail end portion 116, and a middle end portion 117 disposed between the head end portion 115 and the tail end portion 116, the head end portion 115 is disposed in the center of the winding core main body, and the tail end portion 116 is disposed at the periphery of the winding core main body; the negative tab 130 is arranged on the negative plate 113, the positive tab 120 is arranged on the positive plate 111, one of the positive tab 120 and the negative tab 130 is arranged between the head end portion 115 and the middle end portion 117, and the other is arranged between the middle end portion 117 and the tail end portion 116.

For example, as shown in fig. 2, the roll sheet assembly 110 is long before being wound into a cylindrical shape, the roll sheet assembly 110 includes a first separator 114, a negative electrode sheet 113, a second separator 112, and a positive electrode sheet 111, which are stacked, the left end of the roll sheet assembly 110 is a head end 115, the right end of the roll sheet assembly 110 is a tail end 116, a middle position from the head end to the tail end 116 is a middle end 117, the negative electrode sheet 113 is provided with a negative electrode tab 130, the positive electrode tab 120 is provided on the positive electrode sheet 111, and a certain distance is provided between the positive electrode tab 120 and the negative electrode tab 130 in the left-right direction; after the winding sheet assembly 110 is wound into a cylindrical shape, as shown in fig. 1, the radii of the ring layers where the positive tab 120 and the negative tab 130 are located are different, and the positive tab 120 and the negative tab 130 may be respectively disposed on two sides of the winding core main body, disposed opposite to each other, or disposed on the same side of the winding core main body.

For the electric core, the internal resistance mainly comprises the lithium ion conduction between the positive and negative pole pieces 113 and the electronic conduction in the pole pieces, the utility model discloses set up one of positive tab 120 and negative tab 130 between head end 115 and middle end 117, another locates between middle end 117 and tail end 116, can effectively reduce the electronic conduction distance in the pole pieces, simultaneously, avoided positive tab 130 and negative tab 130 to overlap, prevent to take place the short circuit; the structure is simple, the manufacture is convenient, only one positive tab 120 and one negative tab 130 are needed to be arranged, the process and material cost are not needed to be increased, and the internal resistance of the battery cell is effectively reduced.

In some embodiments of the present invention, the winding core further includes a casing, the winding core main body is disposed in the casing, the casing is filled with electrolyte, the positive tab 120 and the negative tab 130 are all penetrated through the casing, the casing is made of an aluminum film, and the casing covers the winding core main body. The aluminum film is light and thin, and even a shell is added, the quality and the volume of the winding battery cell cannot be greatly influenced; in addition, besides the case is used for coating the winding core main body and then is filled with the electrolyte, the positive plate 111 and the negative plate 113 can be respectively coated with the paste electrolyte, so that the electrolyte can be stored without the case, and the electrolyte can be directly applied to electronic products.

In some embodiments of the present invention, the positive tab 120 is disposed at a one-third position from the head end portion 115 to the tail end portion 116, and the negative tab 130 is disposed at a two-thirds position from the head end portion 115 to the tail end portion 116. Therefore, while a sufficient spacing distance is provided between the positive tab 120 and the negative tab 130, the positive tab 120 and the negative tab 130 are both closer to the middle end portion 117, and the effect of reducing the internal resistance is better.

According to the utility model discloses electronic cigarette of second aspect embodiment, including miaow head 400, cigarette bullet 300 and foretell coiling electric core 100, the vertical setting of coiling electric core 100, anodal ear 120 with negative pole ear 130 is all located coiling electric core 100 upside, miaow head 400 coiling electric core 100 the cigarette bullet 300 is from last to setting up down, miaow head 400 with be equipped with first space between the coiling electric core 100, anodal ear 120 with negative pole ear 130 locates in the first space, anodal ear 120 with negative pole ear 130 respectively with miaow head 400 electric connection, anodal ear 120 with negative pole ear 130 respectively with cigarette bullet 300 electric connection.

For example, as shown in fig. 3, the electronic cigarette further includes a housing 200, where the housing 200 is a vertically arranged tubular shape, and the microphone 400, the winding electric core 100, and the cartridge 300 are all disposed in the housing 200; the microphone 400 and the cartridge 300 can be connected in series, and the microphone 400 and the cartridge 300 can be started or stopped simultaneously; the pneumatic sensor is arranged in the microphone 400, the cartridge 300 generally comprises an atomizer, a liquid storage cavity and a suction nozzle, and the microphone 400 and the cartridge 300 are common parts of an electronic cigarette and can be directly purchased from the market, so that the pneumatic sensor is not described in detail.

By using the winding battery cell 100, the battery cell has lower internal resistance and higher safety performance; the positive tab 120 and the negative tab 130 are arranged in the first space, so that soldering is convenient during assembly, the positive tab 120 and the negative tab 130 do not need to be bent, internal short circuit of the battery cell is prevented, the bottom of the winding battery cell 100 can be close to the top of the cigarette cartridge 300, space is saved, and miniaturization of the electronic cigarette is facilitated, and the shape of the electronic cigarette is closer to that of a real cigarette; meanwhile, the positive tab 120 and the negative tab 130 are far away from the smoke cartridge 300, and even if the smoke oil in the smoke cartridge 300 overflows after being atomized, the tin soldering points cannot be corroded, and the circuit cannot be damaged.

The utility model discloses an in some embodiments, be equipped with LED lamp pearl on the miaow head 400. Therefore, the LED lamp beads can be lightened when the electronic cigarette is started, and the normal operation of the electronic cigarette can be represented while the brightness of the cigarette is simulated.

The above description is for the purpose of illustrating the preferred embodiments of the present invention, but the present invention is not limited to the illustrated embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are included in the scope of the present invention defined by the appended claims.

Claims

1. A winding electric core is characterized in that: the winding core comprises a winding core main body, wherein the winding core main body comprises a winding sheet assembly wound into a columnar shape, the winding sheet assembly comprises a first diaphragm, a negative plate, a second diaphragm and a positive plate which are sequentially stacked, the winding sheet assembly comprises a head end part, a tail end part and a middle end part arranged between the head end part and the tail end part, the head end part is arranged in the center of the winding core main body, and the tail end part is arranged on the periphery of the winding core main body; the negative pole piece is provided with a negative pole lug, the positive pole piece is provided with a positive pole lug, one of the positive pole lug and the negative pole lug is arranged between the head end part and the middle end part, and the other one of the positive pole lug and the negative pole lug is arranged between the middle end part and the tail end part.

2. The wound cell of claim 1, wherein: the winding core comprises a shell, a winding core main body and a cathode lug, wherein the winding core main body is arranged in the shell, electrolyte is filled in the shell, the anode lug and the cathode lug are all penetrated out of the shell, the shell is made of an aluminum film, and the shell is coated with the winding core main body.

3. The wound cell of claim 1, wherein: the positive electrode lug is arranged at the position from the head end part to one third of the tail end part, and the negative electrode lug is arranged at the position from the head end part to two thirds of the tail end part.

4. An electronic cigarette, characterized in that: including miaow head, cigarette bullet and any of claims 1 to 3 coiling electricity core, the vertical setting of coiling electricity core, anodal ear with the negative pole ear is all located coiling electricity core upside, the miaow head the coiling electricity core the cigarette bullet is from last to setting up down, the miaow head with be equipped with first space between the coiling electricity core, anodal ear with the negative pole ear is located in the first space, anodal ear with the negative pole ear respectively with miaow head electric connection, anodal ear with the negative pole ear respectively with cigarette bullet electric connection.

5. The electronic cigarette of claim 4, wherein: still include the shell, the shell is the tubulose of vertical setting, the miaow head coiling electricity core with the cigarette bullet is all located in the shell.

6. The electronic cigarette of claim 4, wherein: and the microphone is provided with an LED lamp bead.