CN214203834U

CN214203834U - Battery module assembly, battery module and handheld electrical equipment

Info

Publication number: CN214203834U
Application number: CN202120445019.2U
Authority: CN
Inventors: 唐尹; 黄通尧
Original assignee: Shenzhen Ruyuan Technology Co ltd
Current assignee: Shenzhen Ruyuan Technology Co ltd
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2021-09-14
Anticipated expiration: 2031-03-01

Abstract

The utility model discloses a cell subassembly, include: the device comprises an adapter plate and a plurality of soft package battery cells; the plurality of soft package battery cells are stacked on two sides of the adapter plate; and each side surface of the adapter plate is respectively coupled with the positive electrode and the negative electrode of the soft package battery cell on the same side of the adapter plate only on the side surface. The utility model discloses a battery module including above-mentioned battery module group in the lump, and the hand-held type electrical equipment of using this battery module group. The utility model discloses an electricity core subassembly and battery module space utilization is high, and volume energy density is big. The battery module is applied to the handheld electrical equipment, so that the size and the weight of the handheld electrical equipment are reduced, the portability and the attractiveness of the handheld electrical equipment are improved, and the holding comfort level is improved.

Description

Battery module assembly, battery module and handheld electrical equipment

Technical Field

The application relates to the technical field of battery design, in particular to a cell assembly, a battery module comprising the cell assembly and handheld electrical equipment applying the battery module.

Background

With the development of science and technology and the improvement of living standard of people, small-sized handheld electric equipment (such as a dust collector, a beauty instrument, a hair drier, a fascia gun and the like) is more and more widely applied in daily life. To improve portability and flexibility in use, handheld electrical devices are often powered by batteries. The cells adopted by the current batteries mainly comprise two types, one type is a cylindrical cell wrapped with a hard shell (such as a steel shell and an aluminum shell), such as 18650 cells, 21700 cells and the like; the other is a soft package battery core, such as a liquid lithium ion battery core wrapped by a film-shaped shell (such as an aluminum plastic film and a steel plastic film), and the like. The individual cells are generally difficult to meet the requirements of handheld electrical equipment on electric quantity, voltage or/and current, and a plurality of individual cells need to be combined into a cell assembly (Pack). Generally, the electric core assembly is wrapped in the shell to form a battery module to supply power to the equipment.

In some cases, the battery module of the handheld electrical appliance is disposed within the handle thereof. To ensure a better grip, the handle is usually provided as a cylinder and the diameter cannot be too large (usually around 40 to 42 mm); in order to make the whole device beautiful and easy to operate, the length of the handle is not too long on the premise of meeting the function of the device.

The above-mentioned limitations in the size of the handle present challenges to the design of the battery module of the hand-held electrical device. For a cylindrical battery cell, the size of the cylindrical battery cell is usually fixed (for example, 18650 cylindrical battery cells, the diameter is 18mm, and the length is 650mm), flexible combination cannot be realized by a plurality of cylindrical battery cells, or the handle is too thick, or the utilization rate of the internal space of the handle is low, the volume energy density of the whole battery module is low, and the heat dissipation performance is poor. To laminate polymer core, although its size can customize in a flexible way, the thermal diffusivity is better, but the design of current battery module who uses laminate polymer core still is difficult to satisfy the electric quantity demand of hand-held type equipment under the restriction of handle size.

Fig. 1, 2A, 2B show two combinations of prior art soft-packaged cells in a typical handle (cylindrical space). In the combination shown in fig. 1, the flexible package cells are stacked along the axial direction of the cylindrical space, and the electrodes of the cells are connected to a patch panel and a BMS (Battery Management System) board through cables. In the combination mode shown in fig. 2A, the soft package cells are stacked along the radial direction of the cylindrical space to form a cell group. In the combination mode shown in fig. 2B, the soft package cells are stacked along the radial direction of the cylindrical space to form a multi-core group, and the multi-core group is arranged along the axial direction. Every electric core group is corresponding to an keysets, and the electrode of each soft packet of electricity core in the electric core group passes through the cable and is connected to corresponding keysets, and the keysets rethread cable is connected to the BMS board.

In above-mentioned two kinds of compound mode, connect through the cable between the electrode of electric core, keysets, the BMS board, each electric core group outside still need install protective structure additional. In addition, in the combination mode of fig. 1, a longer adapter plate needs to be arranged along the axial direction, and the length and width of the battery cell are smaller than the diameter of the cylindrical space, which is too narrow, so that the production of the battery cell and the improvement of the energy density are not facilitated; the single cell shown in fig. 2A is too long, and is limited by the principle of the soft-package cell and the existing technology, so that the cell energy density is greatly reduced; although the length of the interposer is smaller than that of fig. 1 in the combination manner of fig. 2B, a plurality of interposers need to be provided. The more cable of quantity and protective structure, keysets have taken up great volume space for battery module's available space is more limited, and volume energy density is low.

SUMMERY OF THE UTILITY MODEL

In order to overcome or at least partially alleviate the technical problem, the utility model provides an electricity core subassembly, battery module and hand-held type electrical equipment.

According to the utility model discloses a first aspect provides an electric core subassembly, include: the device comprises an adapter plate and a plurality of soft package battery cells; the plurality of soft package battery cells are stacked on two sides of the adapter plate; and each side surface of the adapter plate is respectively coupled with the positive electrode and the negative electrode of the soft package battery cell on the same side of the adapter plate only on the side surface.

Optionally, in the cell assembly of the first aspect, a positive coupling point and a negative coupling point are disposed on each side surface of the interposer, and the positive coupling point and the negative coupling point are respectively coupled with only the positive electrode and the negative electrode of the soft-package cell on the same side of the interposer.

Optionally, in the electric core assembly of the first aspect, a battery protection plate is further included; each side surface of the adapter plate is electrically connected with the positive electrode and the negative electrode of the soft package battery cell on the same side of the adapter plate only on the side surface; the adapter plate is electrically connected to the battery protection plate through a conductor.

Optionally, in the electric core assembly of the first aspect, a battery protection plate is further included; the positive electrode and the negative electrode of the soft package battery cells are electrically connected to the battery protection board through electric conductors; each side surface of the adapter plate is structurally coupled with the conductor on the same side of the adapter plate only on the side surface, and the adapter plate plays a role in structural support and/or insulation protection for the conductor.

Optionally, in the electric core assembly of the first aspect, the electric conductor comprises at least one of: wire, copper sheet, nickel sheet, printed circuit board, flexible circuit board and sheet board connector.

Optionally, in the battery core assembly of the first aspect, a plane in which the interposer is located is parallel to a stacking direction of the flexible package battery cell.

Optionally, in the electric core assembly of the first aspect, a plane of the battery protection board is perpendicular to a plane of the adapter board.

Optionally, in the cell assembly of the first aspect, a connection circuit is printed on the interposer, and the connection circuit is used for realizing series-parallel connection between the soft package cells on two sides of the interposer.

Optionally, in the battery pack assembly of the first aspect, the battery protection board is printed with a connection circuit, and the connection circuit is used for realizing series connection or parallel connection of the flexible package cells.

According to the electric core subassembly of first aspect, through setting up single keysets, pile up the soft-packaged electric core respectively and set up in the both sides of keysets, the positive negative pole of every side surface of keysets respectively rather than the soft-packaged electric core of homonymy only couples in this side surface, has reduced the quantity of keysets to the shared space of keysets has been reduced. Like this, under the given prerequisite in electric core subassembly's space, the electric core subassembly that the keysets occupy reduces in length direction's space, correspondingly, the space increase that soft-package electricity core can occupy, and single soft-package electricity core's length can increase to promote the space utilization of electric core subassembly in given space, promoted volumetric energy density.

Further, the above embodiment electrically connects the adapter plate and the battery protection board through the electric conductor, or electrically connects the pouch cell and the battery protection board, and the electric conductor is a sheet with a certain strength, and the thickness of the electric conductor is far smaller than that of a common cable, and the electric conductor does not twist or wind like a cable. The scheme of realizing the electricity connection through the electric conductor is compared in cable connection scheme, and the space that has significantly reduced the connecting piece occupies, correspondingly for the available space increase of soft-packaged electrical core, the quantity of the soft-packaged electrical core that can insert in the electric core subassembly and/or the size increase of single soft-packaged electrical core, thereby has promoted the space utilization of electric core subassembly in given space, has promoted volume energy density.

According to the utility model discloses a second aspect provides a battery module, including the electric core subassembly of above-mentioned first aspect and cladding in the outside tubular structure of electric core subassembly, the axis of tubular structure with the direction of piling up of laminate polymer core is perpendicular in the electric core subassembly.

Optionally, in the battery module of the second aspect, flexible buffer material is filled between the wall of tube-shape structure and the side of a plurality of soft-package battery cores that pile up and between the adjacent soft-package battery core.

Optionally, in the battery module of the second aspect, the wall of tube-shape structure is provided with first limiting plate, and a plurality of soft-packaged battery cores that pile up set up on being on a parallel with the axis first limiting plate.

Optionally, in the battery module of the second aspect, the wall of the tubular structural member is further provided with a second limiting plate parallel to the first limiting plate, and the plurality of stacked flexible package cells are disposed between the first limiting plate and the second limiting plate.

Optionally, in the battery module of the second aspect, the cylindrical structural member includes a plurality of shell pieces, and the shell pieces are fixed in a clamping manner.

Optionally, in the battery module of the second aspect, a plurality of stacked flexible package cells form at least one cell pack, and the wall of the cylindrical structural member is provided with a recess configured to accommodate a side of the cell pack parallel to the axis.

According to the battery module of the second aspect, including the above-mentioned electric core subassembly of the first aspect for this battery module has the same technological effect as above-mentioned electric core subassembly, namely space utilization is high, and volume energy density is big.

Further, the embodiment of above-mentioned second aspect sets up through sunken on the wall at the tube-shape structure, has increased the inside accommodation space of tube-shape structure for the tube-shape structure can hold the more laminate polymer core of bigger size or quantity, thereby promotes battery module's volume energy density.

According to the utility model discloses a third aspect provides a hand-held type electrical equipment, include: the working part, the holding part and the battery module of any one of the embodiments; the holding part comprises an accommodating cavity, and the battery module is fixed in the accommodating cavity; the battery module supplies power to the working part.

Optionally, in the handheld electrical apparatus of the third aspect, an interface for charging and/or discharging the battery module is further included.

Optionally, in the handheld electric device of the third aspect, the battery module is replaceably fixed in the accommodating cavity.

Optionally, the handheld electrical appliance of the third aspect comprises: a dust collector, a beauty instrument, a blower and a fascia gun.

According to the handheld electrical equipment of the third aspect, because the battery module with high volume energy density in any one of the above embodiments is used, the volume and the weight of the handheld electrical equipment are reduced, and the portability, the attractiveness and the holding comfort of the handheld electrical equipment are improved.

Drawings

Preferred embodiments according to the present invention will be described in detail below with reference to the accompanying schematic drawings. In the drawings:

fig. 1, fig. 2A and fig. 2B are two combinations of a soft-package battery cell in a cylinder space according to the prior art;

fig. 3 shows a perspective view of the electric core assembly 100 according to the first embodiment of the present invention;

fig. 4 shows a perspective view of a soft-packed cell 120 according to a first embodiment of the invention;

FIG. 5 shows a close-up view of the dashed rectangular box area in FIG. 3;

fig. 6 shows a cross-sectional view of a battery module 200 according to a first embodiment of the present invention, perpendicular to the axis of a cylindrical structural member 250;

fig. 7A, 7B show perspective views of one end of a battery module 300 according to a second embodiment of the present invention;

fig. 8 shows a cross-sectional view of a battery module 300 according to a second embodiment of the present invention, which is perpendicular to the axis of a cylindrical structural member 350;

fig. 9 shows a perspective view of a cell assembly 400 in which a pouch cell 420 according to a second embodiment of the present invention is electrically connected to a battery protection plate 430 through an electrical conductor 440; and

fig. 10 shows a perspective view of a soft pack cell 420 according to a second embodiment of the present invention electrically connected to an adapter plate 410, wherein the adapter plate 410 is electrically connected to a cell assembly 400 of a battery protection plate 430 through an electrical conductor 440.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the embodiments and, together with the description, serve to explain the exemplary implementations of the embodiments. The illustrated embodiments are for purposes of illustration only and do not limit the scope of the claims. The same reference numbers will be used throughout the drawings to refer to the same or like elements.

Detailed Description

In the present invention, unless otherwise specified, the use of the terms "first", "second", etc. to describe various elements is not intended to limit the positional relationship, timing relationship, or importance relationship of the elements, and such terms are used only to distinguish one element from another. In some examples, a first element and a second element may refer to the same example of the element, and in some cases, based on the context, they may also refer to different examples.

The terminology used in the description of the various described examples herein is for the purpose of describing particular examples only and is not intended to be limiting. Unless the context clearly indicates otherwise, if the number of elements is not specifically limited, the elements may be one or more. Furthermore, as used in this disclosure, the term "and/or" encompasses any and all possible combinations of the listed items.

It should be noted that, hereinafter, in order to distinguish the single soft-package battery cell from the battery cell assembly composed of a plurality of single soft-package battery cells, the single soft-package battery cell is referred to as a "soft-package battery cell".

Hereinafter, the battery core assembly and the battery module according to the present invention will be described in detail with reference to fig. 3 to 10.

Fig. 3 to 5 show an electric core assembly 100 according to a first embodiment of the present invention.

As shown in fig. 3, the battery assembly 100 includes an interposer 110 and a plurality of soft-package battery cells 120, where the plurality of soft-package battery cells 120 are stacked on two sides of the interposer 110, and the positive electrode and the negative electrode of the soft-package battery cell 120 on each side surface of the interposer 110 are respectively coupled with the positive electrode and the negative electrode of the soft-package battery cell 120 on the same side only on the side surface.

The soft pack cell 120 generally has a flat rectangular parallelepiped shape, i.e., a small thickness, as shown in fig. 4. It should be understood that the soft-packed cell structure shown in fig. 4 is merely an example, and the present invention is not limited to the shape and size of the soft-packed cell. Furthermore, the utility model discloses also do not restrict the quantity of the soft-packaged electrical core that the electric core subassembly includes. In the embodiment shown in fig. 3, the battery core assembly 100 includes four soft-pack cells 120-1 to 120-4, each having a width of 30 mm to 35 mm, a length of 85 mm to 95 mm, and a thickness of 4 mm to 10 mm.

The utility model discloses an in core subassembly 100, a plurality of soft-packaged electrical core 120 pile up and set up in the both sides of keysets 110. For example, as shown in fig. 3, the soft packing cells 120-1 and 120-2 are stacked on one side (the left side in fig. 3) of the interposer 110; the soft package cells 120-3 and 120-4 are stacked on the other side (the right side in fig. 3) of the interposer 110. In the embodiment of the present invention, the plurality of soft-package cells 120 located on the same side of the interposer 110 can be recorded as one cell group, and accordingly, the cell group 100 shown in fig. 3 includes two cell groups, i.e. a first cell group and a second cell group, where the first cell group includes the soft-package cell 120-1 and the soft-package cell 120-2, and the second cell group includes the soft-package cell 120-3 and the soft-package cell 120-4.

It should be noted that, because the plurality of soft package cells 120 in the cell assembly 100 are divided into a plurality of groups, the stacking directions of the soft package cells in the cell assembly 100 include two, i.e., a first stacking direction and a second stacking direction. The first stacking direction refers to a stacking direction of the plurality of flexible package cells 120 in a single cell group, that is, a stacking direction of the flexible package cells 120 located on the same side of the interposer 110. For example, as shown in fig. 3, the directions indicated by the arrow a and the arrow b are the first stacking direction. The second stacking direction refers to a stacking direction of the plurality of electric core groups. For example, as shown in fig. 3, the direction indicated by the arrow c is the second stacking direction. In the present embodiment, the first stacking direction is perpendicular to the second stacking direction. It should be noted that in some embodiments, arrow a and arrow b may not be parallel, but both may be perpendicular to the direction of arrow c. That is, the cell stacking direction inside different cell groups does not need to be the same, but the cell stacking direction inside any one cell group is perpendicular to the second stacking direction. It should be noted that, unless otherwise stated, the "stacking direction" in the following text refers to the first stacking direction, i.e. the stacking direction of the pouch cells 120 located on the same side of the interposer 110.

In order to save space and improve the volumetric energy density of the core assembly 100, in one embodiment of the present invention, the plane of the adaptor plate 110 may be parallel to the stacking direction of the flexible package core, as shown in fig. 3.

Each side surface of the interposer 110 is coupled with the positive electrode and the negative electrode of the soft package battery cell 120 on the same side only on the side surface. The positive electrode and the negative electrode of the flexible package cell are coupled only on the side surface, which means that the positive electrode and the negative electrode of the flexible package cell are coupled only on the side surface in a direct or indirect (e.g., coupled through an intermediate member such as a conductor) manner without any contact with the other side surface of the interposer 110. For example, as shown in fig. 3 and 5, the left side surface of the interposer 110 is coupled with the positive and negative electrodes of the pouch cells 120-1 and 120-2 located at the left side thereof only at the left side surface, and the right side surface of the interposer 110 is coupled with the positive and negative electrodes of the pouch cells 120-3 and 120-4 located at the right side thereof only at the right side surface.

Through setting up single keysets, pile up the soft-packaged electrical core respectively along first stacking direction and set up in the both sides of keysets, every side surface of keysets is only piled up the direction along the second and is coupled with the positive negative pole of the soft-packaged electrical core of its homonymy respectively on this side surface, has reduced the quantity of keysets to the shared space of keysets has been reduced. Like this, under the given prerequisite in electric core subassembly's space, the electric core subassembly that the keysets occupy reduces in length direction's space, correspondingly, the space increase that soft-package electricity core can occupy, and single soft-package electricity core's length can increase to promote the space utilization of electric core subassembly in given space, promoted volumetric energy density.

According to an embodiment, each side surface of the interposer 110 is provided with a positive coupling point and a negative coupling point, and the positive coupling point and the negative coupling point are respectively coupled with the positive electrode and the negative electrode of the soft-package battery cell on the same side of the interposer. The positive and negative coupling points on each side surface are configured such that the positive and negative electrodes of the same-side soft package cell are coupled thereto in an adhesive manner, directly or indirectly, without any contact with the other side surface of the interposer 110. For example, the positive and negative coupling points may be designated connection points (e.g., printed welding areas, designated welding locations, etc.) on the interposer 110, rather than holes or slots, etc., that are destructive to the surface of the interposer 110.

For example, fig. 5 shows a partially enlarged view of the dashed rectangular box area in fig. 3. As shown in fig. 5, the left side surface of the interposer 110 is provided with positive coupling points 111, 112 and a negative coupling point 113. The positive coupling point 111 is coupled with a positive electrode 121 of the soft package battery cell 120-1 located on the left side of the adapter plate 110, the positive coupling point 112 is coupled with a positive electrode 122 of the soft package battery cell 120-2 located on the left side of the adapter plate 110, and the negative coupling point 113 is coupled with a negative electrode 123 of the soft package battery cell 120-2 located on the left side of the adapter plate 110. Those skilled in the art will understand that the left side surface of the interposer 110 is further provided with a negative coupling point for coupling with the negative electrode of the soft-package cell 120-1, but in fig. 5, the negative coupling point is hidden by the soft-package cell 120-1 and is not shown.

Through the positive coupling points 111 and 112 and the negative coupling point 113 provided on the left side surface of the interposer 110 and other negative coupling points not shown, the positive and negative electrodes of the soft package cell 120-1 and the soft package cell 120-2 are both coupled only to the left side surface of the interposer 110 without any contact with the right side surface of the interposer 110. Similarly, the right side surface of the interposer 110 is also provided with a positive electrode coupling point and a negative electrode coupling point, by which the positive and negative electrodes of the soft package cells 120-3 and 120-4 are coupled only to the right side surface of the interposer 110 without any contact with the left side surface of the interposer 110.

According to one embodiment, as shown in fig. 3, the electric core assembly 100 of the present invention further includes a battery protection plate 130.

The battery protection board 130 may be, for example, an integrated circuit board, and is used to perform charging management and protection on the pouch cell 120, so as to avoid situations such as overcharge, overdischarge, overcurrent, and short circuit of the pouch cell 120. According to an embodiment, in order to make the structure of the battery pack assembly 100 except the pouch cell 120 occupy less space and save more space for accommodating the pouch cell 120, the battery protection board 130 is disposed parallel to the second stacking direction, and in this embodiment, the plane of the battery protection board 130 is perpendicular to the plane of the adaptor board 110.

According to an embodiment, each side surface of the interposer 110 is electrically connected to the positive and negative electrodes of the pouch cell 120 on the same side, respectively, only on the side surface, and the interposer 110 is electrically connected to the battery protection board 130 through the electrical conductor 140. In this embodiment, the interposer 110 is printed with a connection circuit, and the connection circuit is used to implement series-parallel connection between the soft package cells located at two sides of the interposer 110. The interposer 110 may be, for example, a printed circuit board or a flexible circuit board printed with a connection circuit. Through the connecting circuit on the adapter plate 110, the positive electrode of the soft-package battery cell can be connected with the negative electrodes of other soft-package battery cells positioned on the same side or different sides of the soft-package battery cell, so that the soft-package battery cells can be connected in series; or a plurality of soft-package cells positioned on the same side or different sides of the adapter plate 110 are connected with the same pole (namely, the positive pole is connected with the positive pole, and the negative pole is connected with the negative pole) so as to realize the parallel connection of the soft-package cells; or further realize the combination of series connection and parallel connection of the soft-package battery cell. In some embodiments, the two side surfaces of the interposer 110 are printed with connection circuits, and the connection circuits on the two side surfaces are turned on, so that series-parallel connection between the soft package cells located on the opposite sides of the interposer 110 can be realized. Specifically, the adapter plate 110 may be provided with a hole, a conductive body is disposed in the hole, and two ends of the conductive body are respectively connected to the connection circuits on two sides of the adapter plate 110, so as to connect the connection circuits on two sides. Or, a conductor is arranged at the edge of the adapter plate 110, one end of the conductor is connected with the connecting circuit at one side of the adapter plate 110, and the other end of the conductor bypasses the edge of the adapter plate 110 and is connected with the connecting circuit at the other side of the adapter plate 110, so that the connecting circuits at two sides of the adapter plate are conducted.

The electrical conductor 140 has one end electrically connected to the interposer 110 and the other end electrically connected to the battery protection plate 130, thereby electrically connecting the interposer 110 to the battery protection plate 130. Specifically, one end of the electrical conductor 140 is electrically connected to the circuit on the interposer 110, and the other end is electrically connected to the circuit on the battery protection board 130. For example, as shown in fig. 3 and 5, one end of the electrical conductors 140-1 and 140-2 is electrically connected to the circuit on the left side surface of the interposer 110, and the other end is electrically connected to the circuit on the upper surface of the battery protection board 130 (the electrical circuits on the interposer 110 and the battery protection board 130 are not shown in fig. 3 and 5), thereby electrically connecting the interposer 110 to the battery protection board 130. Those skilled in the art will appreciate that the connection of conductors 140 (including conductors 140-1 and 140-2) in fig. 3 and 5 is merely exemplary. In other embodiments, other connection methods may be used to electrically connect the electrical conductor 140 with the interposer 110 and the battery protection plate 130. For example, one end of the conductor 140-1 may be electrically connected to the circuit on the left side surface of the interposer 110, and the other end may be electrically connected to the circuit on the upper surface of the battery protection plate 130; one end of the conductor 140-2 is electrically connected to the circuit on the right side surface of the interposer 110, and the other end is electrically connected to the circuit on the upper surface of the battery protection plate 130. Alternatively, the conductor 140 may be disposed near the interposer 110 and the battery protection plate 130, and two ends of the conductor 140 are directly electrically connected to the circuits of the interposer 110 and the battery protection plate 130, respectively, instead of bending the conductor 140 at the edge of the interposer 110 as shown in fig. 3 and 5, and connecting one bent end to the circuit on the upper surface of the battery protection plate 130.

The electrical conductor 140 may be, for example, a sheet structure, and the invention is not limited to the number and specific materials of the electrical conductor 140. For example, the embodiments shown in FIGS. 3 and 5 illustrate two electrical conductors, namely electrical conductors 140-1 and 140-2. The electrical conductors 140-1 and 140-2 have one end electrically connected to the left side surface of the interposer 110 and the other end electrically connected to the upper surface of the battery protection plate 130. Those skilled in the art will appreciate that the connection of conductors 140 (including conductors 140-1 and 140-2) in fig. 3 and 5 is merely exemplary. In other embodiments, other connection methods may be used to electrically connect the electrical conductor 140 with the interposer 110 and the battery protection plate 130. For example, one end of the conductor 140-1 may be electrically connected to the circuit on the left side surface of the interposer 110, and the other end may be electrically connected to the circuit on the upper surface of the battery protection plate 130; one end of the conductor 140-2 is electrically connected to the circuit on the right side surface of the interposer 110, and the other end is electrically connected to the circuit on the upper surface of the battery protection plate 130. Alternatively, the conductor 140 may be disposed near the interposer 110 and the battery protection plate 130, and two ends of the conductor 140 are directly electrically connected to the circuits of the interposer 110 and the battery protection plate 130, respectively, instead of bending the conductor 140 at the edge of the interposer 110 as shown in fig. 3 and 5, and connecting one bent end to the circuit on the upper surface of the battery protection plate 130. According to one embodiment, the electrical conductor 140 includes at least one of: wire, copper sheet, nickel sheet, printed circuit board, flexible circuit board and sheet board connector.

Through adopting the electric conductor to come electrical connection keysets and battery protection shield, the electric conductor is the thin slice that has certain intensity, and its thickness is far less than ordinary cable, and can not appear like the distortion of cable, the winding condition. The scheme of connecting keysets and battery protection shield through the electric conductor electricity compares in the cable connection scheme, and the space that has significantly reduced conductive connecting piece occupies, correspondingly for but the occupation space increase of laminate polymer core, the quantity of laminate polymer core and/or the size increase of single laminate polymer core that can insert in the electric core subassembly, thereby has promoted the space utilization of electric core subassembly in given space, has promoted volumetric energy density.

According to an embodiment, the battery protection board 130 is also printed with a connection circuit, and the connection circuit is used for realizing the series connection or the parallel connection of the flexible package cells 120. In this way, the series and parallel connection of the pouch cells 120 can be realized by the connection circuit on the interposer 110 and the connection circuit on the battery protection board 130 in combination.

In other embodiments, the connection between the flexible package cells 120 (i.e., the series-parallel connection between the cells) and the electrical connection between the flexible package cells 120 and the battery protection plate 130 may be directly connected by an electrical conductor (e.g., a tab of an extended cell or an additional wire), that is, the positive and negative electrodes of the plurality of flexible package cells 120 are electrically connected to the battery protection plate 130 through the electrical conductor. In these embodiments, no connection circuitry may be provided on the interposer 110. Each side surface of the interposer 110 is structurally coupled to the electrical conductor on the same side thereof only at that side surface, and provides structural support and/or insulation protection for the electrical conductor. Therefore, the space of the electric core assembly occupied by the adapter plate in the length direction can be further reduced, the space utilization rate of the electric core assembly in a given space is further improved, and the volume energy density is further improved.

In the above-mentioned embodiment in which the adaptor plate 110 is structurally coupled to the electrical conductor, the battery protection plate 130 may be printed with a connection circuit, and the connection circuit is used to implement series connection or parallel connection of the pouch cells 120. In other words, the series and parallel connection of the pouch cells 120 may be realized by the connection circuit on the battery protection board 130.

The shape of the adapter plate can be various on the premise of satisfying the limitation of the content space of the battery module. The adapter plate in the embodiment shown in fig. 3 is rectangular, but may also be circular, diamond-shaped, irregular, etc.

It should be noted that the above provides two embodiments in which the interposer 110 is coupled to the soft package cells on two sides of the interposer, one is that the interposer is electrically connected to the soft package cells on two sides of the interposer, and the other is that the interposer is structurally coupled to the electrical conductor. It should be noted that "connected" hereinafter refers to electrically connected, unless otherwise noted.

On the basis of the above-mentioned battery pack assembly 100, the utility model also provides a battery module 200. The battery module 200 comprises the above-mentioned cell assembly 100 and a cylindrical structural member 250 wrapped outside the cell assembly 100, wherein an axis of the cylindrical structural member 250 is perpendicular to a stacking direction of the pouch cells in the cell assembly 100 (i.e. perpendicular to the first stacking direction).

Fig. 6 shows a cross-sectional view of the cylindrical structural member 250 perpendicular to its axis. It should be understood that, although the cross section of the cylindrical structural member 250 shown in fig. 6 is circular, the present invention is not limited to the shape of the cross section of the cylindrical structural member 250 perpendicular to the axis, the cross section may be circular, square, polygonal, or irregular, and the shape of the cross section of the cylindrical structural member 250 at different positions may be different.

According to an embodiment, the wall of the tubular structure 250 and the side of the plurality of stacked soft-package cells 120 and the space between the adjacent soft-package cells 120 are filled with a flexible buffer material to protect the soft-package cells 120 from being impacted or punctured. For example, in fig. 6, the stacked soft package cells 120 form a side surface as shown by two dotted

lines

251, 252, and the flexible buffer material is filled between the wall of the cylindrical structure 250 and the

dotted lines

251, 252, i.e., the region a and the region B, and between each pair of adjacent soft package cells 120. The flexible buffer material may be, for example, foam, rubber, etc., but is not limited thereto.

According to an embodiment, as shown in fig. 6, the wall of the tubular structural member 250 is provided with a first limiting plate 253, and the plurality of stacked soft package cells 120 are arranged on the first limiting plate 253 parallel to the axis of the tubular structural member 250. The stacked soft package cells 120 may be disposed on the first limiting plate 253 by bonding, for example.

According to an embodiment, as shown in fig. 6, the wall of the tubular structure 250 is further provided with a second limiting plate 254 parallel to the first limiting plate 253, and the plurality of stacked soft package cells 120 are disposed between the first limiting plate 253 and the second limiting plate 254. The first limiting plate 253 and the second limiting plate 254 are used for limiting the position of the soft package battery core 120 in the vertical direction, and displacement of the soft package battery core 120 after impact is avoided.

Note that the specific shapes of the first and

second stopper plates

253, 254 are not limited.

According to one embodiment, tubular structure 250 includes a plurality of shell segments that are snap fit. It should be noted that the present invention does not limit the number of the shell pieces and the division manner of the shell pieces included in the tubular structural member 250.

For example, as shown in fig. 6, the cylindrical structural member 250 divides the cylindrical structural member 250 into two shell pieces along a direction indicated by a straight line 255 (i.e., the first stacking direction of the pouch cells 120), and the two shell pieces are fastened and fixed. For another example, the tubular structure 250 may divide the tubular structure 250 into two pieces along the direction indicated by line 256. For another example, the cylindrical structure 250 may divide the cylindrical structure 250 into two or more shell pieces (not shown in fig. 6) along any cross section perpendicular to the axis thereof, and each shell piece may be fixed by a rotational snap-fit manner.

According to an embodiment, the plurality of stacked flexible pouch cells 120 form at least one core pack (as shown in fig. 6, four flexible pouch cells 120 are stacked to form one core pack), and the wall of the tubular structure 250 is provided with a concave depression 257 configured to accommodate a side edge of the core pack parallel to the axis. The concave depression 257 may be formed, for example, by reducing the wall thickness of the wall of the tubular structure 250, or by an indentation in the wall.

Through set up sunkenly on the wall at the tube-shape structure, increased the inside accommodation space of tube-shape structure for the tube-shape structure can hold more size or the more flexible package electricity core of quantity, thereby promotes the volume energy density of battery module.

Fig. 7A to 8 show a battery module 300 according to a second embodiment of the present invention. The battery module 300 includes a plurality of laminate polymer battery cores 420 and the cladding in the outside tube-shape structure 350 of laminate polymer battery core 420. A plurality of soft-packaged electrical core 420 pile up and form at least one electric core group, and the axis of tube-shape structure 350 is perpendicular with the direction of piling up of soft-packaged electrical core 420 in every electric core group. The wall of the cylindrical structure 350 is provided with a recess configured to receive the side of the set of electrical cores parallel to the axis.

For example, as shown in fig. 7A and 7B, two soft package cells 420 form a cell group, and the side edges of the cell group parallel to the axis of the cylindrical structural member 350 are four, i.e., the four side edges are pointed by the letter A, B, C, D. The walls of tubular structure 350 are provided with depressions (depression 351 in fig. 7A and depression 352 in fig. 7B) configured to receive side A, B, C, D.

It should be understood that, although the cross section of the tubular structural member 350 shown in fig. 7A and 7B is circular, the present invention is not limited to the shape of the cross section of the tubular structural member 350 perpendicular to the axis, the cross section may be circular, square, polygonal or irregular, and the shape of the cross section of the tubular structural member 350 at different positions may be different.

According to one embodiment, the recess provided in the wall of the tubular structure 350 may be formed, for example, by reducing the wall thickness of the wall. As shown in fig. 7A, the wall of the cylindrical structural member 350 is provided with a recess 351, and the recess 351 is formed by reducing the wall thickness of the wall. Two soft-pack cells 420 are stacked to form a cell pack, and the recess 351 is configured to accommodate the side of the cell pack parallel to the axis of the cylindrical structural member 350, i.e., the recess 351 is configured to accommodate the side A, B, C, D. It should be noted that in the embodiment shown in fig. 7A, the top angle of the soft package cells 420 is arc-shaped, and accordingly, the side A, B, C, D of the cell group formed by stacking the soft package cells 420 appears as an arc-shaped angle on the radial cross section of the cylindrical structural member 350. In other embodiments, the top angle of the soft package cells 420 may also be a right angle, and accordingly, the side of the cell group formed by stacking the soft package cells 420, which is parallel to the axis of the tubular structural member 350, appears as a right angle on the radial cross section of the tubular structural member 350.

According to another embodiment, the recess provided in the wall of tubular structure 350 may be formed, for example, by an indentation in the wall. As shown in fig. 7B, the wall of the tubular structure 350 is provided with a recess 352, the recess 352 being formed by an indentation in the wall. Two flexible pouch cells 420 are stacked to form a cell pack, and the recess 352 is configured to accommodate the side of the cell pack parallel to the axis of the cylindrical structural member 350, i.e., the recess 352 is configured to accommodate the side A, B, C, D. It should be noted that in the embodiment shown in fig. 7B, the top angle of the soft package cells 420 is arc-shaped, and accordingly, the side A, B, C, D of the cell group formed by stacking the soft package cells 420 appears as an arc-shaped angle on the radial cross section of the cylindrical structural member 350. In other embodiments, the top angle of the soft package cells 420 may also be a right angle, and accordingly, the side of the cell group formed by stacking the soft package cells 420, which is parallel to the axis of the tubular structural member 350, appears as a right angle on the radial cross section of the tubular structural member 350.

According to an embodiment, the wall of tubular structure 350 and the side of the core group that a plurality of soft-packaged cells 420 pile up and between the adjacent soft-packaged cells 420 are filled with flexible buffer material to protect soft-packaged cells 420, avoid it to receive the striking or to be pierced through. For example, in fig. 7A and 7B, two soft-packaged cells 420 are stacked to form a cell group, the side surfaces of which are shown by two dotted lines, and the space between the wall of the cylindrical structural member 350 and the dotted lines, and between each pair of adjacent soft-packaged cells 420, are filled with flexible buffer materials. The flexible buffer material may be, for example, foam, rubber, etc., but is not limited thereto.

According to an embodiment, as shown in fig. 7A and 7B, the wall of the cylindrical structural member 350 is provided with a first limiting plate 353, and the core pack formed by stacking the plurality of soft package cells 420 is disposed on the first limiting plate 353 parallel to the axis of the cylindrical structural member 350. The electric core group may be disposed on the first limiting plate 353 by means of bonding, for example.

According to an embodiment, as shown in fig. 7A and 7B, the wall of the tubular structure 350 is further provided with a second limiting plate 354 parallel to the first limiting plate 353, and the core pack formed by stacking a plurality of soft package cells 420 is disposed between the first limiting plate 353 and the second limiting plate 354. The first limiting plate 353 and the second limiting plate 354 are used for limiting the position of the soft package battery core 420 in the vertical direction, and displacement of the soft package battery core 420 after impact is avoided.

Note that the specific shape of the first and

second stopper plates

353, 354 is not limited.

According to one embodiment, tubular structure 350 includes a plurality of shell segments that are snap fit. It should be noted that the present invention does not limit the number of the shell pieces and the division manner of the shell pieces included in the tubular structural member 350.

For example, as shown in fig. 7A and 7B, the cylindrical structural member 350 is divided into two shell pieces in the vertical direction in the cross section (i.e., the first stacking direction of the soft pack cell 420), the two shell pieces are fixed by clamping, and the clamping points of the two shell pieces are shown in the dashed rectangle frame in the figure. For another example, the cylindrical structural member 350 may divide the cylindrical structural member 350 into two shell pieces (not shown in fig. 7A, 7B) in a horizontal direction in the cross section. For another example, the cylindrical structural member 350 may be divided into two or more shell pieces (not shown in fig. 7A and 7B) along any cross section perpendicular to the axis thereof, and each shell piece may be fixed by being clamped and rotated.

It should be noted that, in the embodiment of the present invention, the structure of the inner cladding of the tubular structural member 350 of the battery module 300 is collectively referred to as an electric core assembly 400, the battery module 300 includes the tubular structural member 350 and the electric core assembly 400 inside the tubular structural member, and the electric core assembly 400 includes a soft package electric core 420.

According to one embodiment, as shown in fig. 8 to 10, the battery pack assembly 400 further includes a battery protection plate 430, and the battery protection plate 430 is electrically connected to the pouch cell 420 through an electrical conductor 440.

According to an embodiment, one end of the electrical conductor 440 is electrically connected to the battery protection plate 430, and the other end is electrically connected to an electrode (positive or negative electrode) of the pouch cell 420, thereby electrically connecting the battery protection plate 430 to the pouch cell 420. For example, as shown in fig. 9, the upper end of the conductive body 440 passes through the battery protection plate 430 and is bent, and is electrically connected to the battery protection plate 430 at the bent portion, specifically, to a circuit on the battery protection plate 430 (the circuit is not shown in fig. 9). The lower end of the electric conductor 440 is electrically connected to the electrode of the pouch cell 420, thereby electrically connecting the battery protection plate 430 to the pouch cell 420.

The battery protection board 430 may be, for example, an integrated circuit board, and is used to perform charging management and protection on the pouch cell 420, so as to avoid situations such as overcharge, overdischarge, overcurrent, and short circuit of the pouch cell 420. According to an embodiment, in order to make the structure of the battery pack assembly 400 except the pouch cell 420 occupy less space and save more space for accommodating the pouch cell 420, the battery protection board 430 is disposed parallel to the second stacking direction of the pouch cell 420, i.e. the plane where the battery protection board 430 is located is parallel to the axis of the cylindrical structural member 350. In the present embodiment, referring to fig. 8, the plane on which the battery protection plate 430 is located is parallel to the axis of the cylindrical structural member 350, in other words, the plane on which the battery protection plate 430 is located is parallel to the second stacking direction (the direction indicated by the arrow a in fig. 9) of the pouch cell 420.

In some embodiments, electrical conductor 440 may be a sheet-like structure, and the invention is not limited to the number and specific materials of electrical conductor 440. According to one embodiment, electrical conductor 440 includes at least one of: wire, copper sheet, nickel sheet, printed circuit board, flexible circuit board and sheet board connector.

According to one embodiment, as shown in fig. 10, the electric core assembly 400 further comprises an adapter plate 410, the battery protection plate 430 is electrically connected to the adapter plate 410 through an electric conductor 440, and the adapter plate 410 is electrically connected to the pouch cell 420. Specifically, one end of the electrical conductor 440 is electrically connected to the electrical circuit on the upper surface of the battery protection plate 430, and the other end is electrically connected to the electrical circuit on the left side surface of the interposer 410 (the battery protection plate 430, the electrical circuit on the interposer 410 are not shown in fig. 10), thereby electrically connecting the battery protection plate 430 to the interposer 410. The adaptor plate 410 is electrically connected to the positive and negative electrodes of the pouch core 420. Those skilled in the art will appreciate that the manner in which electrical conductors 440 in fig. 10 are connected is merely an example. In other embodiments, other connection methods may be used to electrically connect the electrical conductors 440 to the interposer 410 and the battery protection plate 430. For example, one end of one conductor 440 may be electrically connected to the circuit on the upper surface of the battery protection plate 430, and the other end may be electrically connected to the circuit on the left side surface of the interposer 410; one end of the other conductor 440 is electrically connected to the circuit on the upper surface of the battery protection plate 430, and the other end is electrically connected to the circuit on the right side surface of the interposer 410. Alternatively, the electrical conductor 440 may be disposed near the interposer 410 and the battery protection plate 430, and two ends of the electrical conductor 440 are directly electrically connected to the circuits of the interposer 410 and the battery protection plate 430, respectively, instead of bending the electrical conductor 440 at the edge of the interposer 410 as shown in fig. 10 and connecting one bent end to the circuit on the upper surface of the battery protection plate 430. According to an embodiment, the plane of the interposer 410 is parallel to the stacking direction of the flexible package cells.

According to an embodiment, the adaptor plate 410 and/or the battery protection plate 430 are printed with connection circuits for realizing the serial connection or the parallel connection of the pouch cells 420. In other words, the series and parallel connection of the pouch cells 420 may be realized only through the connection circuit on the adapter plate 410, only through the connection circuit on the battery protection plate 430, or through the connection circuit on the adapter plate 410 and the battery protection plate 430 in combination.

The battery protection board is electrically connected to the soft package battery core through the electric conductor, or the battery protection board is electrically connected to the adapter plate through the electric conductor, and the adapter plate is electrically connected to the soft package battery core. The electric conductor is less than the space that occupies in ordinary cable, correspondingly for the available space increase of battery module, the increase of the size of the quantity of the laminate polymer battery core that can insert and/or single laminate polymer battery core in the battery module, thereby promoted the space utilization of battery module in given space, promoted volume energy density. The shape of the adapter plate can be various on the premise of satisfying the limitation of the content space of the battery module. The adapter plate in the embodiment shown in fig. 10 is rectangular, but may also be circular, diamond-shaped, irregular, etc.

It should be understood that in the present embodiment, the number of interposer may not be limited to only a single one. For example, two adapter plates may be used, and the flexible package cells on one side are stacked in the first stacking direction and disposed on one side of the single adapter plate. And then the two adapter plates are connected through a conductor or connected with a battery protection plate.

The utility model discloses above-mentioned second embodiment is sunken through setting up on the wall of tube-shape structure, has increased the inside accommodation space of tube-shape structure for the tube-shape structure can hold the more flexible package electricity core of bigger size or quantity, thereby promotes the volume energy density of battery module.

According to an embodiment, can will the utility model discloses technical characteristics in first embodiment and the second embodiment make up wantonly for the volume energy density of battery module obtains bigger promotion. For example, the battery module can both couple with the laminate polymer core of its both sides respectively through single keysets, also sets up sunkenly on the wall of tube-shape structure for the battery module can superpose the two beneficial technological effect, makes the volume energy density of battery module obtain bigger promotion. As shown in fig. 7A, 7B and 10, a plurality of soft package cells 420 are stacked on one side of the interposer 410 in the first stacking direction to form a single cell group. The two electric core groups on both sides of the interposer 410 are electrically connected to the interposer 410 along the second stacking direction. The interposer 410 is electrically connected to the battery protection plate 430 by electrical conductors 440 to form the electrical core assembly 400. In this embodiment, the length of the electric core assembly 400 is close to the length of the holding portion of the handheld electric device, and the width is close to the width of the holding portion, and the electric core assembly has a thickness capable of being placed into the holding portion. The core assembly 400 is installed in the axial direction of tubular structure 350 with its arc-like apex (A, B, C, D) located at a recess (351 or 352) in the wall of tubular structure 350. The electric core assembly 400 is disposed between the first and

second restriction plates

353 and 354. The above structure improves the space utilization rate by the length and width of the inner space of the battery module.

Based on the utility model discloses a battery module of above-mentioned embodiment, the utility model discloses still provide a hand-held type electrical equipment who uses above-mentioned battery module. Hand-held electrical devices include, but are not limited to, vacuum cleaners, cosmetic instruments, hair dryers, fascial guns, and the like.

The handheld electrical equipment comprises a working part, a holding part and the battery module (such as the battery module 200, the battery module 300, etc.) provided by the utility model. The holding part comprises an accommodating cavity, and the battery module is fixed in the accommodating cavity. The battery module supplies power to the working part. In some embodiments, a majority of the battery module is included in the receiving cavity, and a minority of the battery module is included in the working part.

It should be noted that the present invention does not limit the fixing manner of the battery module in the accommodating cavity. According to one embodiment, the battery module is replaceably fixed in the accommodating cavity. Such an exchangeable fastening can be, for example, a snap-fit connection; or, when the size of battery module and holding chamber can closely mate, fill in the holding intracavity with battery module and can realize fixing, need not additionally to adopt the mounting. Such a fixing mode is beneficial to replacing the battery module in daily use or maintenance of the handheld electric equipment, so that the service life of the equipment is prolonged, and the safety level of the equipment is improved.

According to one embodiment, the handheld electrical device comprises, in addition to the working portion, the grip portion and the battery module, an interface for charging and/or discharging the battery module. And charging and/or discharging the battery module through the interface.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, it should be understood that the scope of the invention is not limited by these embodiments or examples, but is only limited by the claims after the grant and the equivalents thereof. Various elements in the embodiments or examples may be omitted or may be replaced with equivalents thereof. It should also be understood that as technology evolves, many of the elements described herein may be replaced by equivalent elements appearing after the present invention.

Claims

1. An electric core assembly, comprising: the device comprises an adapter plate and a plurality of soft package battery cells;

the plurality of soft package battery cells are stacked on two sides of the adapter plate;

and each side surface of the adapter plate is respectively coupled with the positive electrode and the negative electrode of the soft package battery cell on the same side of the adapter plate only on the side surface.

2. The battery core assembly of claim 1, wherein each side surface of the adapter plate is provided with a positive coupling point and a negative coupling point, and the positive coupling point and the negative coupling point are respectively coupled with only the positive electrode and the negative electrode of the soft package battery core on the same side of the adapter plate.

3. The electric core assembly of claim 1, further comprising a battery protection plate;

each side surface of the adapter plate is electrically connected with the positive electrode and the negative electrode of the soft package battery cell on the same side of the adapter plate only on the side surface;

the adapter plate is electrically connected to the battery protection plate through a conductor.

4. The electric core assembly of claim 1, further comprising a battery protection plate;

the positive electrode and the negative electrode of the soft package battery cells are electrically connected to the battery protection board through electric conductors;

each side surface of the adapter plate is structurally coupled with the conductor on the same side of the adapter plate only on the side surface, and the adapter plate plays a role in structural support and/or insulation protection for the conductor.

5. The electrical core assembly of claim 3 or 4, wherein the electrical conductor comprises at least one of: wire, copper sheet, nickel sheet, printed circuit board, flexible circuit board and sheet board connector.

6. The electric core assembly according to claim 1,

the plane that the keysets was located is parallel with the direction of piling up of soft-packaged electrical core.

7. The electrical core assembly of claim 3 or 4,

the plane of the battery protection board is perpendicular to the plane of the adapter board.

8. The electric core assembly according to claim 2,

the adapter plate is printed with a connecting circuit, and the connecting circuit is used for realizing series-parallel connection between the soft package battery cores on two sides of the adapter plate.

9. The electrical core assembly of claim 3 or 4,

the battery protection board is printed with a connecting circuit, and the connecting circuit is used for realizing series connection or parallel connection of the soft package battery cores.

10. A battery module, comprising: the electric core assembly of any one of claims 1-9, and a cylindrical structure member wrapped outside the electric core assembly, wherein an axis of the cylindrical structure member is perpendicular to a stacking direction of the soft package cells in the electric core assembly.

11. The battery module according to claim 10,

and flexible buffer materials are filled between the wall of the cylindrical structural member and the side faces of the plurality of stacked soft-package battery cells and between the adjacent soft-package battery cells.

12. The battery module according to claim 10,

the wall of tube-shape structure is provided with first limiting plate, and a plurality of soft-packaged electrical core that pile up set up in a parallel with the axis on the first limiting plate.

13. The battery module according to claim 12,

the wall of tube-shape structure still is provided with and is on a parallel with the second limiting plate of first limiting plate, a plurality of soft-packaged battery cores that pile up set up first limiting plate with between the second limiting plate.

14. The battery module according to claim 10,

the tube-shape structure includes a plurality of shell pieces, a plurality of shell pieces joint is fixed.

15. The battery module according to claim 10,

a plurality of stacked flexible pouch cells form at least one battery pack, the wall of the tubular structure being provided with a recess configured to accommodate a side of the battery pack parallel to the axis.

16. A hand-held electrical device, comprising: a working portion, a grip portion, and the battery module according to any one of claims 10 to 15;

the holding part comprises an accommodating cavity, and the battery module is fixed in the accommodating cavity;

the battery module supplies power to the working part.

17. The hand-held electrical device of claim 16, further comprising an interface for charging and/or discharging the battery module.

18. The hand-held electrical device of claim 16, wherein the battery module is replaceably secured in the receiving cavity.

19. The hand-held electrical device of claim 16, comprising: a dust collector, a beauty instrument, a blower and a fascia gun.