CN219067052U - Battery module - Google Patents

Abstract

The embodiment of the disclosure is a battery module, including: the insulation shell is provided with a plurality of electric connectors distributed on the periphery and/or the bottom; the battery cell is arranged in the accommodating cavity formed by the insulating shell; the plurality of conductive shells are sleeved outside the insulating shell, and are insulated; the cover plate is fixed on the battery cell and used for sealing the battery cell and the insulating shell in the conductive shell; the cover plate is movably connected with the conductive shell, and when the cover plate moves to enable the electric connecting piece to be in contact with the conductive shell at a first connecting position, the first conductive shell is connected with a first electric connecting piece with a first polarity; when the cover plate moves to enable the electric connector to be in contact with the conductive shell at a second connection position, the second conductive shell is connected with a second electric connector with the first polarity; therefore, the electrode of the battery core can be switched and connected with the conductive shells at different positions, and the position for changing the polarity of the battery is realized.

Description

Battery module

Technical Field

The disclosure relates to the technical field of electrical appliances, in particular to a battery module.

Background

The conventional battery is packaged by, for example, fastening or welding the upper and lower cases. After the battery is packaged, the polarity of the battery is fixed. So that when it is desired to weld a battery in some complex electronic products, the wire needs to be welded to the battery in a fixed position. This reduces the flexibility of wire bonding and may cause bonding difficulties such as failure to bond in a fixed location or difficulty in achieving bonding in a fixed location or instability after bonding.

Disclosure of Invention

The embodiment of the disclosure provides a battery module, comprising: the insulation shell is provided with a plurality of electric connectors distributed on the periphery and/or the bottom; the battery cell is arranged in the accommodating cavity formed by the insulating shell; the plurality of conductive shells are sleeved outside the insulating shell, and are insulated; the cover plate is fixed on the battery cell and used for sealing the battery cell and the insulating shell in the conductive shell; the cover plate is movably connected with the conductive shell, and when the cover plate rotates to enable the electric connecting piece to be in contact with the conductive shell at a first connecting position, the first conductive shell is connected with a first electric connecting piece with a first polarity; when the cover plate rotates to enable the electric connector and the conductive shell to be in contact at a second connection position, the second conductive shell is connected with a second electric connector with the first polarity.

Optionally, the battery module further includes: the sealing ring is arranged at the movable connection part between the cover plate and the conductive shell; the sealing ring is used for sealing the battery cell in the accommodating cavity.

Optionally, the cover plate comprises a groove with external threads, the conductive shell is provided with internal threads, and the internal threads are matched with the external threads; the insulating shell is positioned in the groove of the cover plate and is fixedly connected with the cover plate; the cover plate is used for rotating to drive the whole battery cell and the insulating shell to rotate relative to the conductive shell.

Optionally, the electrical connectors are disposed between the insulating housing and different conductive housings, and the electrical connectors penetrate through the insulating housing, and each electrical connector is used for conducting or cutting off connection between the positive electrode or the negative electrode of the electrical core and the corresponding conductive housing.

Optionally, the battery module at least includes: a first conductive housing; and the second conductive shell is positioned below the first conductive shell, and the first conductive shell and the second conductive shell are insulated.

Optionally, the insulating housing includes: a first insulating portion, a second insulating portion, located below the first insulating portion, and the first insulating portion surrounding the second insulating portion; the electrical connector comprises: the first electric connector surrounds the side edge of the first insulating part and penetrates through the first insulating part, and is used for conducting or cutting off the connection between the positive electrode or the negative electrode of the battery cell and the first conductive shell; the second electric connecting piece is arranged on the bottom surface of the second insulating part and penetrates through the second insulating part, and the second electric connecting piece is used for conducting or cutting off the connection between the anode or the cathode of the battery cell and the second conductive shell.

Optionally, the battery module further includes: and an insulating member disposed between the first insulating portion and the first conductive housing and surrounding the first insulating portion for cutting off an electrical connection between the first electrical connector and the first conductive housing when the first electrical connector passes.

Optionally, the insulating member includes: and the insulating collar is used for cutting off the electric connection between the first electric connector and the first conductive shell when the first electric connector slides into the gap.

Optionally, the insulating member further includes: and the protruding part is positioned between the first conductive shell and the second conductive shell, protrudes towards the first conductive shell relative to the insulating collar and is used for connecting and insulating the first conductive shell and the second conductive shell.

Optionally, the first insulating portion is integrally formed with the first electrical connector; the second insulating portion is integrally formed with the second electrical connector.

The embodiment of the present disclosure provides a battery module, including: the plurality of conductive shells are sleeved outside the insulating shell, and are insulated; the cover plate is fixed on the battery cell and used for sealing the battery cell and the insulating shell in the conductive shell; the cover plate is movably connected with the conductive shell, and when the cover plate moves to enable the electric connecting piece to be in contact with the conductive shell at a first connecting position, the first conductive shell is connected with a first electric connecting piece with a first polarity; when the cover plate moves to enable the electric connector to be in contact with the conductive shell at a second connection position, the second conductive shell is connected with a second electric connector with the first polarity; therefore, the positive electrode or the negative electrode of the battery core can be switched and connected with the conductive shells at different positions, so that the polarity of the battery module can be switched at different positions of the conductive shells.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.

Fig. 1 is a schematic view of a structure of a battery module shown in an exemplary embodiment of the present disclosure;

fig. 2 is a schematic view of a structure of a battery module shown in an exemplary embodiment of the present disclosure;

fig. 3 is a schematic view of a structure of a battery module according to an exemplary embodiment of the present disclosure.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the utility model. Rather, they are merely examples of devices consistent with aspects of the utility model as detailed in the accompanying application.

As shown in conjunction with fig. 1, 2 and 3, in an embodiment of the present disclosure, there is provided a battery module 10 including:

an insulating housing 11, wherein a plurality of electrical connectors 20n are distributed on the periphery and/or the bottom of the insulating housing 11;

a battery cell 12 disposed in a receiving cavity 13 formed in the insulating housing 11;

a plurality of conductive shells 14 sleeved outside the insulating shell 11, wherein the plurality of conductive shells 14 are insulated;

a cover plate 15 fixed on the battery cell 12 for sealing the battery cell 12 and the insulating housing 11 in the conductive housing 14;

the cover 15 is movably connected with the conductive housing 14, and when the cover 15 is movable to enable the electrical connector 20n to be in contact with the conductive housing 14 at a first connection position, the first conductive housing 142 is connected with the first electrical connector 201 with the first polarity; when the cover 15 is moved so that the electrical connector 20n and the conductive housing 14 are in contact at the second connection position, the second conductive housing 143 is connected to the second electrical connector 202 having the first polarity.

In the embodiment of the present disclosure, the insulating housing 11 may be a housing made of an insulating material. The insulating material of the insulating housing 11 includes, but is not limited to, one or a combination of the following:

quartz;

asbestos;

mica;

glass.

In some embodiments, the insulating housing 11 is in a groove shape, and a plurality of electrical connectors 20n are distributed on the side wall and the bottom surface of the insulating housing 11. And the plurality of electrical connectors 20 penetrate the insulating housing 11 and are connected with the battery cells 12 accommodated in the insulating housing 11.

Here, the electrical connector 20n may be an elastic member made of a conductive material. For example, it may be a metal dome.

In some embodiments, the conductive housings 14 may be spliced into a groove shape, with insulation between each conductive housing. Thus, when an electrical connector is in contact with the conductive housing 14, the polarity of the conductive housing 14 follows the polarity of the electrode of the cell 12 to which the electrical connector 20n is connected.

For example, if the polarity of the electrode of the battery cell 12 connected to the electrical connector 20n contacted by one of the conductive housings 14 is positive, the polarity of the one of the conductive housings 14 is positive.

For another example, if the polarity of the motor of the cell 12 to which the electrical connector 20n of the other conductive housing 14 is connected is negative, the polarity of the one conductive housing 14 is negative.

Here, the distribution position of each conductive housing 14 is different. Thus, when the electrical connector 20n connected to the electrode of the cell 12 is in contact with the conductive housing 14, the conductive housing 14 in contact is connected to the electrode of the cell 12, such that the conductive housing 14 has the polarity of the electrode of the connected cell 12.

In some embodiments, the cover 15 and the battery cell 12 may be fixedly connected by welding, so that the battery cell 12 may move together with the cover 15.

For example, the battery cells 12 may rotate with the cover plate 15.

In some embodiments, the insulating housing 11 is an interference fit and seal with the cover plate 15.

For example, the insulating housing 11 is fixed to the cover 15 by setting the outer diameter of the insulating housing 11 to be larger than the inner diameter of the cover 15.

Here, a fixing material such as an adhesive or glue may be applied to the contact surface between the insulating case 11 and the cover 15, so that the insulating case 11 and the cover 15 are fixedly bonded.

In this way, both the insulating housing 11 and the battery cells 12 can move together with the cover 15. Specifically, for example, when the cover 15 is rotated, the insulating housing 11 and the battery cells 12 are rotated together with the cover 15.

In some embodiments, the cover 15 is screwed to the conductive housing 14, and the cover 15 is movable in rotation relative to the conductive housing 14.

Here, the sealing of the insulating housing 11 in the conductive housing 14 may be achieved by a movable seal or a fixed seal at the movable connection between the cover 15 and the conductive housing 14.

For example, a sealing ring may be provided at the movable connection of the cover plate 15 and the conductive housing 14.

For another example, sealing means such as liquid sealing, wax sealing, labyrinth sealing, etc. may be performed at the movable connection portion of the cover plate 15 and the conductive housing 14.

In some embodiments, the cover 15 has a rotating boss built into it, and the battery cell 12 is in contact with the rotating boss. When the cover 15 rotates, the battery cell 12 and the insulating housing 11 integrally rotate with the cover 15 with respect to the conductive housing 14.

For example, when the cover 15 rotates in the first direction, the battery cell 12 and the insulating housing 11 integrally move with the cover 15 with respect to the conductive housing 14 toward the bottom surface of the conductive housing 14. At this time, the electrical connector provided on the bottom surface of the insulating housing 11 contacts the conductive housing 14 below, so that the conductive housing 14 below carries the polarity of the electrode of the cell 12 toward the bottom surface of the insulating housing 11.

For another example, when the cover 15 is rotated in the second direction, the battery cell 12 and the insulating housing 11 as a whole with the cover 15 move relative to the conductive housing 14 away from the bottom surface of the conductive housing 14. At this time, the electrical connector provided on the side of the fox-searching insulating housing 11 contacts the side conductive housing 14, so that the side conductive housing 14 has the polarity of the motor with the battery cells 12 facing the bottom surface of the insulating housing 11.

Here, the first direction may be a counterclockwise rotation direction and the second direction may be a clockwise rotation direction. Or the first direction is clockwise and the second direction is counter-clockwise.

In this way, by rotation of the cover 15, the polarity of the electrodes of the different positions of the conductive housing 14 with the cells facing the insulating housing 11 can be achieved. Therefore, the welding position of the flexible battery module and the lead can be realized, and the welding difficulty is reduced.

As shown in connection with fig. 1, 2 and 3, in an embodiment of the present disclosure,

the battery module 10 further includes:

the sealing ring 16 is arranged at the movable connection part between the cover plate 15 and the conductive shell 14; the sealing ring 16 is used for sealing the battery cell 12 in the accommodating cavity 13.

In the disclosed embodiment, the sealing ring 16 may be a rubber ring.

In some embodiments, a recess is formed at the movable connection between the cover plate 15 and the conductive housing 14, and the sealing ring 16 may be installed in the recess.

Here, the depth of the recess formed at the movable connection between the cover 15 and the conductive housing 14 is greater than the length of the movement of the cover 15 relative to the conductive housing 14.

In this way, even during the movement of the cover 15, the sealing ring 16 can remain in the groove, so that both the insulating housing 11 and the battery cell 12 can be sealed within the conductive housing 14 at all times. The electrolyte in the cell 12 can be prevented from leaking out.

As shown in connection with fig. 1, 2 and 3, in an embodiment of the present disclosure,

the cover plate 15 includes a groove 152 having an external thread 151, the conductive housing 14 has an internal thread 141, and the internal thread 141 is engaged with the external thread 151;

the insulating housing 11 is located in the groove 152 of the cover plate 15, and the insulating housing 11 is fixedly connected with the cover plate 15; the cover 15 is configured to rotate to drive the battery cell 12 and the insulating housing 11 to rotate integrally with respect to the conductive housing 14.

In some embodiments, the external threads 151 of the cover plate 15 may be rotationally movable relative to the internal threads 141 of the conductive housing 14.

Here, the female screw 141 is clearance-fitted with the male screw 151.

In this way, the cover plate 15 is facilitated to rotate.

In some embodiments, the insulating housing 11 is an interference fit with the recess 152 of the cover 15. The insulating housing 11 is fixedly connected to the cover 15.

Here, the insulating case 11 and the cover 15 may be fixedly connected by adhesion.

In this way, it is possible to realize that the insulating housing 11 together with the battery cells provided in the insulating housing 11 move according to the cover plate 15.

In specific implementation, when the cover 15 rotates relative to the conductive housing 11, the cover 15 drives the battery cell 12 and the insulating housing 11 to integrally rotate relative to the conductive housing 14.

In this way, the part of the electrical connector 20n provided on the insulating housing 11 will be connected to the corresponding conductive housing 14, so that the conductive housing 14 carries the polarity of the electrode of the cell 12 to which the part of the electrical connector 20n is connected.

As shown in connection with fig. 1, 2 and 3, in an embodiment of the present disclosure,

the electrical connectors 20n are disposed between the insulating housing 11 and different conductive housings 14, and the electrical connectors 20n penetrate through the insulating housing 11, and each electrical connector 20n is used for conducting or cutting off the connection between the positive electrode or the negative electrode of the battery cell 12 and the corresponding conductive housing 14.

In the embodiment of the present disclosure, the electrical connector 20n and the insulating housing 11 may be formed by injection molding. In this way, the electrical connector 20n may penetrate the insulating housing 11 and be fixed in the insulating housing 11.

In practice, when the electrical connector 20n moves along with the insulating housing 11, the electrical connector 20n is electrically connected to the corresponding conductive housing 14 if it moves to a position corresponding to the conductive housing 14.

Alternatively, if the electrical connector 20n is at a distance from the conductive housing, the electrical connector 20 is disconnected from the corresponding conductive housing 14.

Still alternatively, even if the electrical connector 20n is moved to a position corresponding to the conductive housing 14, an insulating member is provided between the electrical connector 20n and the conductive housing 14, and the electrical connector 20n is isolated from the conductive housing 14.

In this way, the electrical connection 20n can follow the movement of the insulating housing 11, so as to conduct or cut off between the electrode of the electric core 12 and the corresponding conductive housing 14.

As shown in fig. 1, fig. 2, and fig. 3, in an embodiment of the disclosure, the battery module includes at least:

a first conductive housing 142;

a second conductive housing 143, the second conductive housing 143 being located below the first conductive housing 142, and the first conductive housing 142 being insulated from the second conductive housing 143.

In some embodiments, the first conductive housing 142 may be hollow cylindrical and the second conductive housing 143 may be a circular groove. The inner diameter of the first conductive housing 142 may be identical to the inner diameter of the conductive housing 143, and the outer diameter of the first conductive housing 142 may be identical to the outer diameter of the second conductive housing 143.

In this way, the first conductive housing 142 and the second conductive housing 143 may be spliced to form a space that may accommodate the insulating housing 11.

Here, when necessary, an insulating material may be applied between the first conductive case 142 and the second conductive case 143, or an insulating tape may be attached, or an insulating rubber may be adhered between them.

In this way, the first conductive housing 142 and the second conductive housing 143 are insulated, and the polarity of the first conductive housing 142 is not conducted to the second conductive housing 143, or the polarity of the second conductive housing 143 is not conducted to the first conductive housing 142.

As shown in connection with fig. 1, 2 and 3, in an embodiment of the present disclosure,

the insulating housing 11 includes:

the first insulating portion 111 is provided with a first insulating portion,

a second insulating portion 112 located below the first insulating portion 11, and the first insulating portion 111 surrounds the second insulating portion 112;

the electrical connector 20n includes:

a first electrical connector 201 surrounding the side of the first insulating portion 111 and penetrating through the first insulating portion 111, where the first electrical connector 201 is used to connect or disconnect the positive or negative electrode of the battery 12 to the first conductive housing 142;

the second electrical connector 202 is disposed on the bottom surface of the second insulating portion 112 and penetrates through the second insulating portion 112, and the second electrical connector 202 is used for conducting or cutting off the connection between the positive electrode or the negative electrode of the battery cell 12 and the second conductive housing 143.

In the embodiment of the present disclosure, the first insulating portion 111 is integrally formed with the second insulating portion 112.

Here, the first insulating portion 111 is a side wall portion of the insulating housing 11 surrounding the battery cell 12, and the second insulating portion 112 is a bottom surface portion of the insulating housing 11.

As such, the first insulating portion 111 and the second insulating portion 112 may collectively form the accommodating chamber 13 of the insulating housing 11.

In some embodiments, the first electrical connector 201 extends through the first insulating portion 111 and connects with an electrode of a cell inside the insulating housing 11; the second electrical connector 202 penetrates the second insulating portion 112 and is connected to the electrode of the battery cell 12 inside the insulating housing 11.

Here, the first electrical connector 201 and the second electrical connector 202 may be connected to the same electrode of the battery cell 12.

In particular, when the first electrical connector 201 is in direct contact with the first conductive housing 142, the first electrical connector 201 conducts a connection between the positive or negative electrode of the battery cell 12 and the first conductive housing 142. Alternatively, when the first electrical connector 201 is spaced apart from the first conductive case 142 by a certain distance or by an insulating material, the first electrical connector 201 cuts off the connection between the positive or negative electrode of the battery cell 12 and the first conductive case 142.

In another embodiment, when the second electrical connector 202 is in direct contact with the second conductive housing 143, the second electrical connector 202 conducts a connection between the positive or negative electrode of the cell 12 and the second conductive housing 142. Alternatively, when the second electrical connector 202 is spaced apart from the second conductive housing 143 by a certain distance or by an insulating material, the second electrical connector 202 cuts off the connection between the positive or negative electrode of the battery cell 12 and the second conductive housing 143.

In this way, the conductive shells at different positions can be provided with the polarities of the electric cores through the contact of the different electric connectors and the conductive shells at different positions.

As shown in fig. 1, 2, and 3, in an embodiment of the disclosure, the battery module 10 further includes:

an insulator 17 disposed between the first insulating portion 111 and the first conductive housing 142 and surrounding the first insulating portion 111 for cutting off an electrical connection between the first electrical connector 201 and the first conductive housing 142 when the first electrical connector 201 passes.

In some embodiments, the insulator 17 may be disposed on the first conductive housing 142 and/or the second conductive housing 143.

In particular, the insulator 17 isolates the first electrical connector 201 from contact with the first conductive housing 142 as the first electrical connector passes by. Whereby the insulating member 17 effects a disconnection of the electrical connection between the first electrical connector 201 and the first conductive housing 142.

As shown in connection with fig. 1, 2 and 3, in an embodiment of the present disclosure,

the insulator 17 includes:

an insulating collar 171, a gap 173 is formed between the insulating collar 171 and the insulating housing 11, and the insulating collar 171 is used for cutting off the electrical connection between the first electrical connector 201 and the first conductive housing 142 when the first electrical connector 201 slides into the gap 173.

In practice, when the first electrical connector 201 rotates with the cover 15, the first electrical connector 201 and the second electrical connector 202 are close to the second conductive housing 143 together with the insulating housing 11. When the second electrical connector 202 is in contact with the second conductive housing 143, the first electrical connector 202 will be in the void 173 between the first insulating portion 111 and the first conductive housing 142.

Here, the first electrical connector 201 is an elastic member, and thus may abut against the first conductive housing 142 when the insulating collar 171 is not passed. When passing through the insulating collar 171, the insulating collar 171 is forced to spring into between the insulating housing 11 and the insulating collar 171. In this way, the first electrical connector 201 isolates the first electrical connector 201 from the first conductive housing 143 due to the insulator 17, thereby breaking the electrical connection between the first electrical connector 201 and the first conductive housing 142.

As shown in connection with fig. 1, 2 and 3, in an embodiment of the present disclosure,

the insulator 17 further includes:

a protrusion 172 between the first conductive housing 142 and the second conductive housing 143, and the protrusion 172 protrudes toward the first conductive housing 142 with respect to the insulating collar 171, the protrusion 172 being for connecting and insulating the first conductive housing 142 and the second conductive housing 143.

In the disclosed embodiment, the protruding portion 172 may protrude a length greater than the thickness of the conductive housing 14 with respect to the insulating collar 171.

For example, the protruding portion 172 may protrude from the insulating collar 171 by any suitable length that is 0.5mm, 1mm, etc. greater than the thickness of the conductive housing 14.

Here, a side of the protrusion 172 facing the first conductive housing 142 may be coated with an adhesive material, thereby achieving connection between the protrusion 172 and the first conductive housing 142 and sealing of the conductive housing 14. The side of the protrusion 172 facing the second conductive housing 143 may also be coated with an adhesive material to achieve a connection between the protrusion 172 and the first conductive housing 142 and a seal of the conductive housing 14.

In this way, a sealed connection between the conductive housings is achieved.

And when the first conductive housing 142 is connected with the first electrical connector 201, the polarity of the first conductive housing 142 is not conducted to the second conductive housing 143. Conversely, when the second conductive housing 143 is connected to the second electrical connector 202, the polarity of the second conductive housing 143 is not conducted to the first conductive housing 143. Thereby achieving insulation between the respective conductive housings.

As shown in connection with fig. 1, 2 and 3, in an embodiment of the present disclosure,

the first insulating portion 111 is integrally formed with the first electrical connector 201;

the second insulating portion 112 is integrally formed with the second electrical connector 202.

In the embodiment of the disclosure, the first electrical connector 201 may be integrally formed with the first insulating portion 111 by injection molding, and the second electrical connector 202 may be integrally formed with the second insulating portion 112 by injection molding.

In this way, a sealed connection between the insulating housing 11 and the electrical connector 20n can be achieved, with good stability.

In the related art, the main packaging modes of the steel shell button cell in the market mainly comprise a mode of buckling an upper shell jaw and a lower shell jaw and a mode of welding the upper shell and the lower shell. Once the button cell packaged by the method is molded, the polarity of the cell can be fixed, and the welding of the lead wire is very difficult under some complex electronic product environments. Therefore, this patent provides a novel steel shell button cell of screw encapsulation polarity adjustable, has realized the regulation of battery polarity through novel screw encapsulation mode, has reduced the insulating cost of positive pole effectively.

The method and the device are applied to the field of various electronic products and wearing products, the polarity of the positive electrode of the steel shell button cell is adjusted by designing the packaging mode of threads, the welding flexibility of the positive electrode plate is improved, and meanwhile, the positive electrode insulation cost is reduced.

In an embodiment of the present disclosure, the battery includes: the coil core is composed of a lower shell 143, an insulating sleeve 17, an intermediate shell 142, an insulating shell 11, a coil core 12 and an upper cover 15. Here, the lower case may be expressed by the second conductive case in the above embodiment, the insulating cover may be expressed by the insulating member in the above embodiment, the intermediate case may be expressed by the first conductive case in the above embodiment, the winding core may be expressed by the battery core in the above embodiment, and the upper cover may be expressed by the cover plate in the above embodiment.

In the embodiment of the disclosure, the lower casing 143 and the middle casing 143 are connected through the plastic insulating sleeve 17, and in order to achieve fixing and guarantee sealing effects, glue is applied on the contact surface of the insulating sleeve 17 and the conductive casing 11, so as to guarantee the firmness of fixing between the casings.

In the embodiment of the disclosure, the middle shell 142 is connected with the upper cover 15 through threads, and in order to ensure sealing and insulating effects, the rubber ring 16 is installed at the upper edge of the upper cover in a clamping groove mode, so that the sealing property and the insulating property between the middle shell and the upper cover are ensured, and the electrolyte is prevented from leaking outwards. Here, the rubber ring 16 may be expressed by the seal ring 16 in the above-described embodiment.

In the embodiment of the disclosure, the upper cover 15 is in interference fit with the insulating housing 11, and the fixing is realized by applying glue on the contact surface, and the winding core 12 is placed in the space between the upper cover and the insulating housing.

In the embodiment of the disclosure, the insulating housing 11 is injection molded with metal shrapnel 201, 202 having a conductive function. Here, the metal spring pieces 201, 202 may be expressed by the electrical connector 20n.

In the embodiment of the disclosure, the winding core 12 is connected with the upper cover 15 by welding, and the positive electrode is connected with the metal spring pieces 201 and 202.

In the embodiment of the disclosure, a rotating boss is designed on the upper cover 15, and in the illustrated state, the metal elastic sheets 201 and 202 are in contact with the middle shell 142, and at this time, the upper cover 15 is a negative electrode, and the middle shell 11 is a positive electrode; when the boss is rotated, the upper cover and the insulating housing part move downward integrally, the metal spring plate 142 contacts the insulating sleeve 17, and the metal spring plate 202 contacts the lower housing 143, and the lower housing is 143 positive.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following application.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the accompanying application documents.

Claims (10)

1. A battery module, comprising:

the insulation shell is provided with a plurality of electric connectors distributed on the periphery and/or the bottom;

the battery cell is arranged in the accommodating cavity formed by the insulating shell;

the plurality of conductive shells are sleeved outside the insulating shell, and are insulated;

the cover plate is fixed on the battery cell and used for sealing the battery cell and the insulating shell in the conductive shell;

the cover plate is movably connected with the conductive shell, and when the cover plate moves to enable the electric connecting piece to be in contact with the conductive shell at a first connecting position, the first conductive shell is connected with a first electric connecting piece with a first polarity; when the cover plate moves to enable the electric connector to be in contact with the conductive shell at a second connection position, the second conductive shell is connected with the second electric connector with the first polarity.

2. The battery module according to claim 1, wherein the battery module comprises,

the battery module further includes:

the sealing ring is arranged at the movable connection part between the cover plate and the conductive shell; the sealing ring is used for sealing the battery cell in the accommodating cavity.

3. The battery module according to claim 1, wherein the battery module comprises,

the cover plate comprises a groove with external threads, the conductive shell is provided with internal threads, and the internal threads are matched with the external threads;

the insulating shell is positioned in the groove of the cover plate and is fixedly connected with the cover plate; the cover plate is used for rotating to drive the whole battery cell and the insulating shell to rotate relative to the conductive shell.

4. The battery module according to claim 1, wherein the electrical connectors are disposed between the insulating housing and different conductive housings, the electrical connectors penetrating through the insulating housing, each of the electrical connectors being for conducting or disconnecting a connection between a positive or negative electrode of the battery cell and a corresponding conductive housing.

5. The battery module according to claim 4, wherein the battery module comprises at least:

a first conductive housing;

and the second conductive shell is positioned below the first conductive shell, and the first conductive shell and the second conductive shell are insulated.

6. The battery module according to claim 5, wherein,

the insulating housing includes:

the first insulating portion is provided with a first opening,

a second insulating portion located below the first insulating portion, and the first insulating portion surrounds the second insulating portion;

the electrical connector comprises:

the first electric connector surrounds the side edge of the first insulating part and penetrates through the first insulating part, and is used for conducting or cutting off the connection between the positive electrode or the negative electrode of the battery cell and the first conductive shell;

the second electric connecting piece is arranged on the bottom surface of the second insulating part and penetrates through the second insulating part, and the second electric connecting piece is used for conducting or cutting off the connection between the anode or the cathode of the battery cell and the second conductive shell.

7. The battery module according to claim 6, further comprising:

and an insulating member disposed between the first insulating portion and the first conductive housing and surrounding the first insulating portion for cutting off an electrical connection between the first electrical connector and the first conductive housing when the first electrical connector passes.

8. The battery module according to claim 7, wherein the battery module,

the insulator includes:

the insulating collar is used for cutting off the electric connection between the first electric connecting piece and the first conductive shell when the first electric connecting piece slides into the gap.

9. The battery module according to claim 8, wherein the battery module comprises,

the insulator further comprises:

and the protruding part is positioned between the first conductive shell and the second conductive shell, protrudes towards the first conductive shell relative to the insulating collar and is used for connecting and insulating the first conductive shell and the second conductive shell.

10. The battery module according to claim 6, wherein the battery module comprises,

the first insulating part and the first electric connecting piece are integrally formed;

the second insulating portion is integrally formed with the second electrical connector.

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