CN220253437U - Cylindrical battery and electric equipment - Google Patents

Abstract

The utility model discloses a cylindrical battery and electric equipment, and relates to the field of batteries. The cylindrical battery comprises a cylindrical shell, an insulating plug, a control board and an electric core, wherein the cylindrical shell is provided with an opening end and a closed end which are opposite, the insulating plug is inserted into the opening end to block the opening end, the control board and the electric core are accommodated in the cylindrical shell, the control board is positioned between the electric core and the insulating plug, a first charging and discharging electrode is arranged on the control board, passes through the insulating plug and stretches out of the cylindrical shell, the electric core is provided with a first electrode and a second electrode which are opposite in polarity, the first electrode is electrically connected with the first charging and discharging electrode, a second charging and discharging electrode is arranged on the end wall of the closed end, and the second electrode is electrically connected with the second charging and discharging electrode. The cylindrical battery provided by the utility model has the advantages of convenient and quick assembly process and stable and reliable short-circuit prevention effect.

Description

Cylindrical battery and electric equipment

Technical Field

The utility model relates to the field of batteries, in particular to a cylindrical battery and electric equipment.

Background

At present, after the assembly of the battery core into the shell and the control board is completed, the open end of the shell is sealed in a welded mode, and the output electrode on the control board extends out of the end wall of the sealed shell to facilitate external power connection.

The process operation of welding the closed shell is tedious, time and labor are wasted, and in order to avoid short circuit, an insulating pad needs to be arranged between the output electrode and the end wall of the shell, so that the assembly difficulty is improved, and the short circuit preventing effect is unreliable.

Disclosure of Invention

The utility model aims to provide a cylindrical battery which is convenient to assemble and reliable in short-circuit prevention effect.

The utility model further aims to provide electric equipment, which has the characteristic of higher use safety.

The embodiment of the utility model provides a technical scheme that:

the utility model provides a cylinder battery, includes cylinder casing, insulating stopper, control panel and electric core, the cylinder casing has relative open end and blind end, the insulating stopper with the open end is pegged graft in order to shutoff open end, the control panel with the electric core holding in the inside of cylinder casing, just the control panel is in the electric core with between the insulating stopper, be provided with first charge-discharge electrode on the control panel, first charge-discharge electrode passes the insulating stopper stretches out the cylinder casing, the electric core has the first electrode and the second electrode that polarity is opposite, first electrode with first charge-discharge electrode electricity is connected, be provided with the second charge-discharge electrode on the end wall of blind end, the second electrode with the second charge-discharge electrode electricity is connected.

Further, the cylindrical battery further comprises an insulating sealing ring and a conductor, wherein the insulating sealing ring is accommodated in the cylindrical shell and is positioned between the control board and the electric core, the insulating sealing ring is sleeved on the side wall of the conductor, a first annular wall is convexly arranged on the inner side wall of the cylindrical shell, the insulating sealing ring is circumferentially extruded to deform, and the first electrode is electrically connected with the first charging and discharging electrode through the conductor.

Further, a first roller groove is formed in the outer side wall of the cylindrical shell at a position corresponding to the first ring wall.

Further, the control board comprises an insulating substrate, and the first charging and discharging electrode is convexly arranged at one end, far away from the battery cell, of the insulating substrate.

Further, the control board further comprises a thimble, the thimble is convexly arranged at one end, far away from the first charging and discharging electrode, of the insulating substrate, and the first electrode is electrically connected with the first charging and discharging electrode through the thimble.

Further, the insulating plug comprises a cover body and a claw protruding from one side of the cover body, the claw and the cover body form a step structure inserted into the opening end, the claw clamps and fixes the insulating base body, and one end of the first charging and discharging electrode, which is far away from the insulating base body, penetrates through the cover body.

Further, a second annular wall is convexly arranged on the inner side wall of the cylindrical shell, and one side, close to the insulating plug, of the second annular wall and the insulating plug jointly clamp and fix the insulating base body.

Further, the insulating plug comprises a cover body and a supporting part protruding on one side of the cover body, the supporting part and the cover body form a step structure inserted into the opening end, the supporting part and the second ring wall clamp and fix the insulating base body, and one end of the first charging and discharging electrode, which is far away from the insulating base body, penetrates through the cover body.

Further, a second roller groove is formed in the outer side wall of the cylindrical shell at a position corresponding to the second ring wall.

The embodiment of the utility model also provides electric equipment, which comprises the cylindrical battery, wherein the cylindrical battery comprises a cylindrical shell, an insulating plug, a control board and an electric core, the cylindrical shell is provided with an opposite opening end and a closed end, the insulating plug is inserted into the opening end to block the opening end, the control board and the electric core are accommodated in the cylindrical shell, the control board is positioned between the electric core and the insulating plug, a first charging and discharging electrode is arranged on the control board, the first charging and discharging electrode penetrates through the insulating plug and extends out of the cylindrical shell, the electric core is provided with a first electrode and a second electrode with opposite polarities, the first electrode is electrically connected with the first charging and discharging electrode, and a second charging and discharging electrode is arranged on the end wall of the closed end and is electrically connected with the second charging and discharging electrode.

Compared with the prior art, the cylindrical battery provided by the utility model has the advantages that the insulation plug is inserted into the opening end to plug the opening end, and compared with a welding mode adopted in the prior art, the operation is more convenient and quicker. And moreover, the first charging and discharging electrode on the control panel penetrates through the insulating plug to extend out of the cylindrical shell, so that the first charging and discharging electrode can be more effectively prevented from being contacted with the cylindrical shell, extra sealing gaskets are omitted, short circuits caused by assembly errors are reduced, and the short circuit prevention effect is better. Therefore, the cylindrical battery provided by the utility model has the beneficial effects that: the assembly process is convenient and quick, and the short-circuit prevention effect is stable and reliable.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the drawings that are required to be used in the embodiments will be briefly described. It is appreciated that the following drawings depict only certain embodiments of the utility model and are therefore not to be considered limiting of its scope. Other relevant drawings may be made by those of ordinary skill in the art without undue burden from these drawings.

Fig. 1 is a schematic structural view of a cylindrical battery according to a first embodiment of the present utility model;

fig. 2 is a schematic structural view of a cylindrical battery according to a second embodiment of the present utility model.

Icon: 100-cylindrical batteries; 110-a cylindrical housing; 111-open ends; 112-closed end; 113-a second charge-discharge electrode; 114-a first ring wall; 115-a first roll groove; 116-a second ring wall; 117-second roll groove; 120-insulating plugs; 121-a cover; 122-jaws; 123-a holding portion; 130-control panel; 131-a first charge-discharge electrode; 132-an insulating matrix; 133-thimble; 140-cell; 141-a first electrode; 142-a second electrode; 150-insulating sealing rings; 160-electrical conductors.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships conventionally put in place when the inventive product is used, or the directions or positional relationships conventionally understood by those skilled in the art are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, terms such as "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The following describes specific embodiments of the present utility model in detail with reference to the drawings.

First embodiment

Referring to fig. 1, fig. 1 is a schematic structural diagram of a cylindrical battery 100 according to the present embodiment.

The cylindrical battery 100 provided in this embodiment includes a cylindrical housing 110, an insulating plug 120, a control board 130, and a battery cell 140. The cylindrical housing 110 has opposite open and closed ends 111, 112, and the insulating plug 120 is inserted into the open end 111 to close off the open end 111. The control board 130 and the battery cell 140 are accommodated in the cylindrical housing 110, and the control board 130 is located between the battery cell 140 and the insulating plug 120. The control board 130 is provided with a first charge-discharge electrode 131, and the first charge-discharge electrode 131 passes through the insulating plug 120 and protrudes out of the cylindrical housing 110. The battery core 140 has a first electrode 141 and a second electrode 142 with opposite polarities, the first electrode 141 is electrically connected with the first charge-discharge electrode 131, the end wall of the closed end 112 is provided with a second charge-discharge electrode 113, and the second electrode 142 is electrically connected with the second charge-discharge electrode 113.

It can be seen that, in the cylindrical battery 100 provided in this embodiment, the insulation plug 120 is inserted into the open end 111 of the cylindrical housing 110 to plug the open end 111, so that the welding method is more convenient and faster than the welding method in the prior art. In addition, the first charge-discharge electrode 131 arranged on the control board 130 directly penetrates through the insulating plug 120 to extend out of the cylindrical shell 110, the insulating plug 120 plays a role in isolating the first charge-discharge electrode 131 from the cylindrical shell 110, an additional insulating pad is omitted, and the short-circuit prevention effect is more stable and reliable.

The cylindrical battery 100 provided in this embodiment further includes an insulating sealing ring 150 and an electrical conductor 160, the insulating sealing ring 150 is accommodated in the housing and is located between the control board 130 and the electrical core 140, the insulating sealing ring 150 is sleeved on a sidewall of the electrical conductor 160, a first annular wall 114 is convexly disposed on an inner sidewall of the cylindrical housing 110, the insulating sealing ring 150 is extruded and deformed in a circumferential direction of the first annular wall 114, and the first electrode 141 is electrically connected with the first charging and discharging electrode 131 through the electrical conductor 160.

The insulating sealing ring 150 has certain elastic deformation capability, the inner edge of the insulating sealing ring 150 is sleeved on the conductive member, and the outer edge of the insulating sealing ring is extruded by the first annular wall 114 protruding from the inner side wall of the cylindrical shell 110 in the circumferential direction, so that the insulating sealing ring is tightly attached to the inner side wall of the cylindrical shell 110 and the outer side wall of the conductive member, and the effect of reliably sealing the space where the battery cell 140 is located is achieved. The insulating sealing ring 150 isolates the battery cell 140 from the control board 130, and the conductive member electrically connects the first charge-discharge electrode 131 with the first electrode 141 of the battery cell 140. It will be appreciated that to avoid shorting, the conductive member is isolated from the cylindrical housing 110 by an insulating seal 150, i.e., the conductive member is not in contact with the cylindrical housing 110.

In order to ensure reliable sealing between the inner edge of the insulating sealing ring 150 and the conductive member, in this embodiment, a mating ring groove is provided on the sidewall of the conductive member, and the inner edge of the insulating sealing ring 150 is circumferentially embedded in the mating ring groove.

In the case where the inner edge of the insulating seal ring 150 is fitted into the mating ring groove, the inner side wall of the insulating seal ring 150 is fitted to the groove bottom wall of the mating ring groove, and the side walls of both sides of the insulating seal ring 150 in the thickness direction are respectively fitted to the two groove side walls of the mating ring groove. Therefore, the insulating sealing ring 150 is attached to the conductive member in a large area, so that the tightness between the inner edge of the insulating sealing ring 150 and the conductive member is ensured.

In this embodiment, the first ring wall 114 is formed by rolling the outer side wall of the cylindrical shell 110, and the first roller groove 115 is formed on the outer side wall of the opening end 111 at a position corresponding to the first ring wall 114. In practical application, the outer side wall of the open end 111 is rolled circumferentially, so that the corresponding position of the outer side wall is recessed circumferentially and the corresponding inner side wall is raised circumferentially, thereby forming the first roller groove 115 on the outer surface and forming the first ring wall 114 on the inner side wall.

For convenience of assembly, in this embodiment, the forming process of the first ring wall 114 is a matching process between the first ring wall 114 and the insulating seal 150. That is, after the insulating seal 150 is sleeved on the conductive member and is assembled together with the conductive member into the open end 111 of the cylindrical housing 110, the outer side wall of the open end 111 is subjected to rolling treatment, and the rolling position corresponds to the outer periphery of the insulating seal 150. During the rolling process, the raised first annular wall 114 on the inner side wall of the open end 111 simultaneously presses the insulating sealing ring 150. After the first ring wall 114 is formed, the matching of the insulating seal 150 with the first ring wall 114 is also completed.

In this embodiment, in order to further ensure the sealing effect, the width of the cross section of the first ring wall 114 is smaller than the thickness of the insulating sealing ring 150, so that the first ring wall 114 is embedded into the insulating sealing ring 150 under the condition that the insulating sealing ring 150 is elastically deformed due to extrusion of the first ring wall 114. In other words, in this state, the end wall of the first flange 114 and the side walls on both sides in the width direction are bonded to the outer side walls of the deformed insulating seal ring 150 in a curved shape, so that the bonding area is increased and better sealing performance is obtained.

In this embodiment, the control board 130 includes an insulating substrate 132, a thimble 133 and a first charge-discharge electrode 131, where the thimble 133 and the first charge-discharge electrode 131 are respectively protruding on two opposite sides of the insulating substrate 132 in the thickness direction, a control circuit capable of adjusting voltage and grounding is provided on the insulating substrate 132, a conductive portion is provided on the periphery of the insulating substrate 132, the control circuit is electrically connected with the cylindrical shell 110 through the conductive portion, and the thimble 133 is electrically connected with the first charge-discharge electrode 131 through the control circuit, and the thimble 133 is abutted to one end of the conductive member away from the electric core 140, so as to establish the electrical connection between the first charge-discharge electrode 131 and the first electrode 141 of the electric core 140.

A second charge-discharge electrode 113 is disposed on the end wall of the closed end 112, and the second charge-discharge electrode 113 is electrically connected to the second electrode 142, so that in practical application, the cylindrical battery 100 is electrically connected to an external circuit through the first charge-discharge electrode 131 and the second charge-discharge electrode 113, so as to realize charging or power supply. It is understood that the control board 130 can ensure that the first charge-discharge electrode 131 and the second charge-discharge electrode 113 are not shorted by the control circuit configuration. The specific polarities of the first charge-discharge electrode 131 and the second charge-discharge electrode 113 are determined according to the specific polarities of the first electrode 141 and the second electrode 142 of the battery cell 140. For example, when the first electrode 141 is a positive electrode and the second electrode 142 is a negative electrode, the first charge-discharge electrode 131 is a positive output electrode and the second charge-discharge electrode 113 is a negative output electrode; when the first electrode 141 is a negative electrode and the second electrode 142 is a positive electrode, the first charge/discharge electrode 131 is a negative output electrode and the second charge/discharge electrode 113 is a positive output electrode.

It is understood that the battery cell 140 may be a soft package battery cell 140 or a roll, and the specific type of the battery cell 140 is not limited in this application.

In this embodiment, the insulating plug 120 includes a cover 121 and a claw 122 protruding on one side of the cover 121, the claw 122 and the cover 121 form a step structure inserted into the opening end 111, the claw 122 clamps and fixes the insulating base 132, and one end of the first charging/discharging electrode 131 away from the insulating base 132 passes through the cover 121 to extend out of the cylindrical housing 110.

In fact, in the present embodiment, the claw 122 is a ring wall structure protruding on one side of the cover 121, one end of the ring wall structure away from the cover 121 is provided with a slip guiding ring wall, a clamping groove is annularly arranged on the inner side wall of the ring wall structure, the slip guiding ring wall is in a horn shape, and the narrow opening end of the slip guiding ring wall corresponds to the clamping groove. In the assembly process, the insulating base 132 is embedded into the claw 122 from the wide opening end of the slip guide ring wall, and the slip guide ring wall guides the insulating base 132 to slide into the embedded clamping groove, so that the insulating base 132 is fixed. In this state, the first charge-discharge electrode 131 on the insulating base 132 passes through the through hole provided on the cover 121.

In the actual assembly process, the battery cell 140 is first installed inside the cylindrical housing 110, and the second electrode 142 of the battery cell 140 is connected to the cylindrical housing 110, so that the second electrode 142 is electrically connected to the second charge-discharge electrode 113. And then the assembly of the insulating sealing ring 150 and the conductive member, the connection of the conductive member and the first electrode 141, and the matching of the insulating sealing ring 150 and the first ring wall 114 are completed. Then, the insulating base 132 of the control board 130 is clamped into the clamping groove of the clamping jaw 122, and after the completion, the insulating plug 120 is inserted into the opening end 111 of the cylindrical shell 110, so that the opening end 111 is plugged. Through the preset size, the thimble 133 is guaranteed to be just abutted with the conductive piece in the state that the insulating plug 120 is spliced with the opening end 111, and the conductive part arranged on the insulating base 132 is just abutted with the cylindrical shell 110.

Second embodiment

Referring to fig. 2, fig. 2 is a schematic structural diagram of a cylindrical battery 100 according to the present embodiment.

The cylindrical battery 100 provided in this embodiment is different from the first embodiment in the structure of the insulating plug 120, the structure of the cylindrical case 110, and the fixing manner of the control board 130.

Specifically, in the present embodiment, the inner side wall of the cylindrical shell 110 is convexly provided with a second ring wall 116, and the insulating base 132 is clamped and fixed by the side of the second ring wall 116, which is close to the insulating plug 120, and the insulating plug 120.

In practice, the second annular wall 116 is formed by rolling the outer wall of the cylindrical shell 110 in the same manner as the first annular wall 114, that is, the second roll groove 117 is formed in the outer wall of the cylindrical shell 110 at a position corresponding to the second annular wall 116.

The insulating plug 120 comprises a cover body 121 and a supporting part 123 protruding on one side of the cover body 121, the supporting part 123 and the cover body 121 form a step structure inserted into the opening end 111, the supporting part 123 and the second ring wall 116 clamp and fix the insulating base 132, and one end of the first charging and discharging electrode 131 far away from the insulating base 132 penetrates through the cover body 121.

In the actual assembly process, the battery cell 140 is first installed inside the cylindrical housing 110, and the second electrode 142 of the battery cell 140 is connected to the cylindrical housing 110, so that the second electrode 142 is electrically connected to the second charge-discharge electrode 113. And then the assembly of the insulating sealing ring 150 and the conductive member, the connection of the conductive member and the first electrode 141, and the matching of the insulating sealing ring 150 and the first ring wall 114 are completed. The cylindrical shell 110 is then roll-formed to form the second web 116, and the insulating base 132 of the control plate 130 is inserted into the cylindrical shell 110 from the open end 111 until it contacts the second web 116. After completion, the insulating plug 120 is inserted into the open end 111 of the cylindrical housing 110, thereby completing the blocking of the open end 111. Through the preset size, it is ensured that in the state that the insulating plug 120 is inserted into the opening end 111, the abutting portion 123 abuts against one side of the insulating base 132 away from the second annular wall 116, and one end of the first charging/discharging electrode 131 away from the insulating base 132 passes through the through hole provided on the cover body 121.

In summary, the assembly process of the cylindrical battery 100 provided by the application is convenient and quick, and the short-circuit prevention effect is stable and reliable.

Embodiments of the present application also provide an electrical device configured with the cylindrical battery 100 provided in the first embodiment or the second embodiment. The beneficial effects of the cylindrical battery 100 are benefited, and the electric equipment provided by the embodiment has the characteristic of higher use safety.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a cylinder battery, its characterized in that includes cylinder casing, insulating stopper, control panel and electric core, the cylinder casing has relative open end and blind end, the insulating stopper with the open end is pegged graft in order to shutoff open end, the control panel with the electric core holding in the inside of cylinder casing, just the control panel is in between the electric core with the insulating stopper, be provided with first charge-discharge electrode on the control panel, first charge-discharge electrode passes the insulating stopper and stretch out the cylinder casing, the electric core has first electrode and the second electrode that the polarity is opposite, first electrode with first charge-discharge electrode electricity is connected, be provided with the second charge-discharge electrode on the end wall of blind end, the second electrode with second charge-discharge electrode electricity is connected.

2. The cylindrical battery according to claim 1, further comprising an insulating sealing ring and an electric conductor, wherein the insulating sealing ring is accommodated in the cylindrical shell and is located between the control board and the electric core, the insulating sealing ring is sleeved on the side wall of the electric conductor, a first annular wall is protruding on the inner side wall of the cylindrical shell, the insulating sealing ring is extruded to deform circumferentially, and the first electrode is electrically connected with the first charging and discharging electrode through the electric conductor.

3. The cylindrical battery according to claim 2, wherein a first roller groove is formed in an outer side wall of the cylindrical case at a position corresponding to the first ring wall.

4. The cylindrical battery of claim 1, wherein the control board comprises an insulating base, and the first charge-discharge electrode is protruding from an end of the insulating base away from the cell.

5. The cylindrical battery of claim 4, wherein the control plate further comprises a thimble protruding from an end of the insulating substrate remote from the first charge-discharge electrode, and the first electrode is electrically connected to the first charge-discharge electrode through the thimble.

6. The cylindrical battery according to claim 4, wherein the insulating plug comprises a cover body and a claw protruding on one side of the cover body, the claw and the cover body form a step structure inserted into the opening end, the claw clamps and fixes the insulating base body, and one end of the first charging and discharging electrode, which is far away from the insulating base body, penetrates through the cover body.

7. The cylindrical battery of claim 4, wherein a second annular wall is convexly arranged on the inner side wall of the cylindrical shell, and one side of the second annular wall, which is close to the insulating plug, and the insulating plug jointly clamp and fix the insulating base body.

8. The cylindrical battery according to claim 7, wherein the insulating plug comprises a cover body and a supporting part protruding on one side of the cover body, the supporting part and the cover body form a step structure inserted into the opening end, the supporting part and the second ring wall clamp and fix the insulating base body, and one end of the first charging and discharging electrode far away from the insulating base body penetrates through the cover body.

9. The cylindrical battery of claim 7, wherein a second roller groove is formed in an outer side wall of the cylindrical case at a position corresponding to the second ring wall.

10. A powered device comprising a cylindrical battery as claimed in any one of claims 1-9.