CN219759690U - Battery pack - Google Patents

Abstract

The utility model discloses a battery pack, which comprises a shell, a circuit board and a battery cell assembly, wherein the circuit board and the battery cell assembly are arranged in the shell, the circuit board is electrically connected with the battery cell assembly to be used for managing the charge and discharge of the battery cell assembly, the battery pack also comprises a light-emitting element, the light-emitting element is arranged on the circuit board, so that the circuit board controls the work of the light-emitting element, the shell is provided with a light-emitting surface, and the light of the light-emitting element is suitable for being irradiated outside the shell through the light-emitting surface. When the light-emitting element works, the surface of the battery pack has light rays to radiate, so that the light-emitting element has an illumination function, can be used as an atmosphere lamp, increases the ornamental value of the battery pack, and brings rich experience to users. In addition, the light-emitting element is integrated on the circuit board for controlling the battery cell assembly, so that the internal circuit can be simplified, the elements in the shell are compactly arranged, and the volume of the battery pack is reduced.

Description

Battery pack

Technical Field

The utility model relates to the technical field of battery packs.

Background

Based on portable use requirements, more and more electric tools employ lithium ion battery packs as a power source. Meanwhile, in order to prolong the endurance time, the battery pack needs to have larger electric capacity, that is, a plurality of electric cores need to be arranged in the battery pack, so that the existing battery pack is generally larger, and correspondingly, the electric tool also provides larger space for accommodating the battery pack, which contradicts the portable requirement of the electric tool.

How to reduce the whole volume of the battery pack under the condition of ensuring the battery capacity is a problem faced by the current battery pack field.

Disclosure of Invention

An object of the present utility model is to provide a battery pack with reasonable internal structure arrangement, which is beneficial to fully utilizing the internal space of the battery pack and reducing the overall size of the battery pack.

In order to achieve the above object, the utility model provides a battery pack, which comprises a shell, a circuit board and a battery cell assembly, wherein the circuit board and the battery cell assembly are arranged in the shell, the circuit board is electrically connected with the battery cell assembly for managing the charge and discharge of the battery cell assembly, the battery pack further comprises a light emitting element, the light emitting element is arranged on the circuit board, so that the circuit board controls the work of the light emitting element, the shell is provided with a light emitting surface, and the light of the light emitting element is suitable for being irradiated outside the shell through the light emitting surface.

Further, the housing includes an upper wall extending in a length direction and a width direction of the battery pack, the circuit board is disposed between the upper wall and the battery cell assembly, the housing further includes a first side wall extending in the width direction and the thickness direction of the battery pack, at least a portion of the first side wall forms a light emitting surface, the light emitting element is disposed on a side of the circuit board facing the battery cell assembly, and the light emitting element is disposed at an end of the circuit board adjacent to the first side wall.

Further, one end of the battery cell assembly, which is close to the first side wall, is provided with an arc-shaped first surface, the first surface extends from the side opposite to the circuit board to the side opposite to the first side wall, and the projection of the light-emitting element along the thickness direction of the battery pack overlaps with the projection of the first surface in the direction.

Further, the first side wall includes a top and a first side portion connecting the top and the upper wall in an inclined manner, and a projection of the circuit board and the light emitting unit in a length direction of the battery pack overlaps with a projection of the first side portion in the direction.

Further, the battery pack further comprises a light guide member arranged between the light emitting surface of the light emitting element and the light emitting surface of the first side wall, and the light guide member is used for guiding light emitted by the light emitting element to the light emitting surface.

Further, the light emitting element includes a plurality of lamp beads, the battery pack includes a plurality of light guide members corresponding to the lamp beads one by one, the first side wall has a plurality of light through holes corresponding to the light guide members, the light through holes form the light emitting surface, and each light guide member extends from the light emitting surface of the corresponding lamp bead into the corresponding light through hole.

Further, the battery pack further comprises a light blocking member arranged on the outer side of each light guide member, the light blocking member is used for reducing light lost from the side face of the light guide member, so that light rays are concentrated and emitted from one end, opposite to the light emitting face, of the light guide member, and the light blocking member extends to the outer side of each lamp bead.

Further, a plurality of the light guides are connected in a row by a connecting member so that the plurality of the light guides are adapted to be integrally installed.

Further, the battery pack comprises a plurality of light blocking members which are arranged at intervals along the width direction of the battery pack, the light blocking members are connected to the surface of the battery cell assembly, and each light guide member is arranged between two adjacent light blocking members.

Further, a second button for controlling the switch of the light-emitting element is further arranged on the circuit board, a first button is movably arranged on the first side wall, and a linkage piece is arranged between the first button and the second button, so that when the first button is operated, the first button acts on the second button through the linkage piece to change the switch state of the first button.

Further, the second button is located at one end of the circuit board, which is close to the first side wall, the second button is arranged at one side of the circuit board, which faces the battery cell assembly, and the first button is arranged at the top of the first side wall.

Further, the battery pack further comprises an electrical interface electrically connected with the circuit board, the housing comprises a second side wall opposite to the first side wall, an electrical through hole is formed in the second side wall, the electrical interface is arranged near the second side wall opposite to the electrical through hole, and external equipment is suitable for being electrically connected with the electrical interface through the electrical through hole.

Further, the electrical interface is connected with one end of the circuit board, which is close to the second side wall, and one end of the battery cell assembly, which is close to the second side wall, is provided with an arc-shaped second surface, the second surface extends from one side opposite to the circuit board to one side opposite to the second side wall, and the projection of the electrical interface along the thickness direction of the battery pack is overlapped with the projection of the second surface along the direction.

Further, a shortest distance between the second surface and the circuit board is greater than a shortest distance between the first surface and the circuit board.

Further, the electric core assembly comprises at least three electric cores, each electric core is sequentially arranged from the first side wall to the second side wall, the axis of each electric core is parallel to the width direction of the battery pack, and each electric core is compactly arranged in a staggered mode up and down, so that a plurality of gaps with unequal sizes are formed between the electric core assembly and the circuit board.

According to another aspect of the present utility model, there is further provided a battery pack, including a housing and a plurality of electric cells disposed in the housing, the housing having an upper wall extending in a longitudinal direction and a width direction of the battery pack, the plurality of electric cells being disposed in a longitudinal direction of the battery pack, the plurality of electric cells including an electric cell one and an electric cell two disposed at both ends of the housing, respectively, a shortest distance between the electric cell one and the upper wall being H1, a shortest distance between the electric cell two and the upper wall being H2, H1 < H2, an assembly one being disposed between the electric cell one and the upper wall, and an assembly two being disposed between the electric cell two and the upper wall.

According to another aspect of the present utility model, there is further provided a battery pack including a case and a plurality of battery cells disposed in the case, a circuit board is further disposed between the case and the plurality of battery cells, the case has an upper wall extending in a longitudinal direction and a width direction of the battery pack, the plurality of battery cells are disposed in a longitudinal direction of the battery pack, the plurality of battery cells include a first battery cell and a second battery cell disposed at both ends of the case, respectively, the circuit board extends between the first battery cell and the upper wall, a shortest distance between the first battery cell and the circuit board is H3, a shortest distance between the second battery cell and the upper wall is H4, H3 < H4, the battery pack further includes a first component and a second component disposed in the case, the first component is disposed between the first battery cell and the circuit board, and the second component is disposed between the second battery cell and the upper wall.

According to another aspect of the present utility model, there is further provided a battery pack, including a housing and a plurality of electric cores disposed in the housing, a circuit board is further disposed between the housing and the plurality of electric cores, the housing has an upper wall extending along a length direction and a width direction of the battery pack, the plurality of electric cores are disposed in a row along the length direction of the battery pack, the plurality of electric cores include an electric core one and an electric core two disposed at two ends of the housing, respectively, the circuit board extends above the electric core one and the electric core two, a shortest distance between the electric core one and the circuit board is H5, a shortest distance between the electric core two and the circuit board is H6, H5 < H6, a component one is disposed between the electric core one and the circuit board, and a component two is disposed between the electric core two and the upper wall.

Further, the first component comprises a light-emitting element and a light guide piece, wherein the light-emitting element is electrically connected with the electric core and is suitable for acquiring electric energy from the electric core to emit light, and the light guide piece is used for guiding the light emitted by the light-emitting element to a light-emitting surface on the shell; the second component comprises an electrical interface, wherein the electrical interface is electrically connected with the electric core, and the electrical interface is suitable for being electrically connected with an external connector.

Further, at least two adjacent cells are arranged in a vertically staggered manner in the plurality of cells, so that an included angle is formed between a connecting line of the centers of the two adjacent cells and a horizontal plane.

Compared with the prior art, the utility model has the beneficial effects that: when the light-emitting element works, the surface of the battery pack has light rays to radiate, so that the light-emitting element has an illumination function, can be used as an atmosphere lamp, increases the ornamental value of the battery pack, and brings rich experience to users. In addition, the light-emitting element is integrated on the circuit board for controlling the battery cell assembly, so that the internal circuit can be simplified, the elements in the shell are compactly arranged, and the volume of the battery pack is reduced.

Drawings

FIG. 1 is a schematic view of one embodiment of a battery pack of the present utility model;

FIG. 2 is an exploded view of one embodiment of a battery pack of the present utility model;

FIG. 3 is a partial schematic view of one embodiment of a battery pack of the present utility model;

FIG. 4 is a schematic cross-sectional view of one embodiment of a battery pack of the present utility model;

FIG. 5 is an enlarged view of a portion of FIG. 4;

FIG. 6 is a partial schematic view of one embodiment of a battery pack of the present utility model, wherein the housing is not shown;

FIG. 7 is a partial schematic view of an embodiment of a battery pack of the present utility model, wherein the housing and light guide are not shown;

FIG. 8 is a schematic view of one embodiment of a battery pack of the present utility model;

fig. 9 is a schematic view of a second embodiment of a battery pack of the present utility model;

fig. 10 is an exploded view of a second embodiment of the battery pack of the present utility model;

FIG. 11 is a partial schematic view of a second embodiment of a battery pack of the present utility model;

FIG. 12 is a partial schematic view of a second embodiment of a battery pack of the present utility model;

fig. 13 is a schematic view of a skeleton of a battery cell of a second embodiment of a battery pack of the present utility model;

fig. 14 is a cross-sectional view of a second embodiment of the battery pack of the present utility model;

fig. 15 is a simplified schematic cross-sectional view of a third embodiment of a battery pack of the present utility model;

fig. 16 is a simplified schematic cross-sectional view of a fourth embodiment of a battery pack of the present utility model;

fig. 17 is a simplified schematic cross-sectional view of a fifth embodiment of a battery pack of the present utility model.

In the figure: 1. a housing; 11. an upper wall; 12. a lower wall; 13. a first sidewall; 131. a top; 130. a first vent; 132. a first side portion; 133. a second side portion; 134. a light-transmitting hole; 14. a second sidewall; 141. an electrical via; 140. a second vent; 10. a heat dissipation channel; 2. a circuit board; 201. a first end of the circuit board; 202. a second end of the circuit board; 3. a cell assembly; 301. a first surface; 302. a second surface; 31. a first battery cell; 32. a second cell; 33. a skeleton; 4. a light emitting element; 41. a lamp bead; 5. a light guide; 51. a relief hole; 52. a connecting piece; 6. an electrical interface; 61. an anode interface; 62. a negative electrode interface; 63. a communication interface; 64. a USB interface; 71. a first button; 72. a second button; 73. a linkage member; 8. and a light blocking member.

Detailed Description

The present utility model will be further described with reference to the following specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.

In the description of the present utility model, it should be noted that, for the azimuth words such as terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present utility model and simplifying the description, and it is not to be construed as limiting the specific scope of protection of the present utility model that the device or element referred to must have a specific azimuth configuration and operation.

It should be noted that the terms "first," "second," and the like in the description and in the claims are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

In the embodiment shown in fig. 1-14, the utility model provides a battery pack, which comprises a shell 1, a circuit board 2 and a battery cell assembly 3, wherein the circuit board 2 and the battery cell assembly 3 are arranged in the shell 1, and the circuit board 2 is electrically connected with the battery cell assembly 3 for managing the charge and discharge of the battery cell assembly 3. The battery pack further includes a light emitting element 4, and the light emitting element 4 is provided on the wiring board 2 so that the operation of the light emitting element 4 is controlled by the wiring board 2. The housing 1 has a light exit surface, and the light of the light emitting element 4 is adapted to be irradiated outside the housing 1 through the light exit surface.

When the light-emitting element 4 works, the surface of the battery pack has light rays to radiate, so that the light-emitting element can play a role in lighting on one hand, can be used as an atmosphere lamp on the other hand, can increase the ornamental value of the battery pack, and brings rich experience for users. In addition, the light-emitting element 4 is integrated on the circuit board 2 for controlling the cell assembly 3, so that the internal circuit can be simplified, the elements in the shell 1 are compactly arranged, and the volume of the battery pack is reduced.

The housing 1 includes an upper wall 11 and a lower wall 12, and the upper wall 11 and the lower wall 12 of the housing 1 are parallel, and extend along the length direction and the width direction of the battery pack. The cell assembly 3 is disposed near the lower wall 12, the circuit board 2 is disposed between the upper wall 11 and the cell assembly 3, the housing 1 further includes a first side wall 13 and a second side wall 14 connecting the upper wall 11 and the lower wall 12, the first side wall 13 and the second side wall 14 are opposite, both extend in the width direction and the thickness direction of the battery pack, and at least a portion of the first side wall 13 forms a light-emitting surface. It should be noted that the light-emitting surface may be formed by a transparent material, or may be formed by a through hole. The first end 201 of the circuit board 2 is close to the first side wall 13, the second end 202 of the circuit board 2 is close to the second side wall 14, the first cell 31 of the cell assembly 3 is close to the first side wall 13, and the second cell 32 of the cell assembly 3 is close to the second side wall 14. The light emitting element 4 is arranged at the side of the first end 201 of the circuit board 2 facing the first cell 31 of the cell assembly 3.

The light-emitting element 4 is arranged facing the cell assembly 3, so that the gap between the circuit board 2 and the cell assembly 3 can be fully utilized, and the increase of the volume of the battery pack due to the arrangement of the light-emitting element 4 can be avoided. It will be appreciated by those skilled in the art that the cells of the cell assembly 3 are generally cylindrical, and the circuit board is generally flat, so that when the two are arranged in parallel, a gap is formed between the curved surface of the cells and the plane of the circuit board, and the light emitting surface is arranged on the first side wall 13 to facilitate the light emission of the light emitting element 4.

The end of the cell assembly 3 adjacent to the first side wall 13 has an arcuate first surface 301, the first surface 301 extending from the side opposite the circuit board 2 to the side opposite the first side wall 13. In some embodiments, the first surface 301 is a surface of the first cell 31, as shown in fig. 4; in other embodiments, the cell assembly 3 includes a skeleton 33 for supporting each cell, and the first surface 301 is a surface of the skeleton 33, as shown in fig. 12 or 14.

The projection of the light emitting element 4 in the thickness direction of the battery pack overlaps with the projection of the first surface 301 in this direction. That is, the light emitting element 4 is disposed in the gap between the arc-shaped first surface 301 and the wiring board 2.

Further, the first side wall 13 includes a top 131, a first side 132 connecting the top 131 and the upper wall 11 in an inclined manner, and a second side 133 connecting the top 131 and the lower wall 11 in an inclined manner. The projection of the wiring board 2 and the light emitting element 4 in the battery pack length direction overlaps with the projection of the first side 132 in this direction. That is, the first side 132 of the first side wall 13 opposite to the circuit board 2 is an inclined surface, a first space is formed between the first end 201 of the circuit board 2, the first side 132 of the first side wall 13, and the first surface 301, the light emitting element 4 is located in the first space, and the first space allows the light of the light emitting element 4 to reach the top of the first side wall 13.

Since it is difficult for the light of the light emitting element 4 to intensively reach the light emitting surface of the first side wall 13, it is preferable that a light guide 5 for guiding the light emitted from the light emitting element 4 more intensively toward the light emitting surface is provided between the light emitting surface of the light emitting element 4 and the light emitting surface of the first side wall 13. The light guide 5 can be accommodated in the above-described first space without occupying an additional space, and a compact arrangement of the internal structure is achieved.

In some embodiments, the first side 132 forms a light emitting surface, one end of the light guide 5 is opposite to the light emitting surface of the light emitting element 4, the light guide 5 extends obliquely along the first side 132, and the light can be more uniformly emitted from the first side 132 under the action of the light guide 5.

In other embodiments, the top 131 of the first sidewall 13 forms a light emitting surface, one end of the light guiding member 5 is opposite to the light emitting surface of the light emitting element 4, the other end of the light guiding member 5 extends to the top 131, and the light can be more intensively emitted from the top 131 under the action of the light guiding member 5 opposite to the light emitting surface of the top 131. For example, in the embodiment shown in fig. 9 to 14, the top 131 of the first sidewall 13 has a plurality of light-passing holes 134, each light-passing hole 134 forms a light-emitting surface, one end of the light guide 5 is opposite to the light-emitting surface of the light-emitting element 4, the other end extends to the light-passing hole 134, and the light reaches the light-passing hole 134 relatively intensively along the light guide 5.

It should be noted that, when the light emitting surface is formed on the top 131, in order to avoid the light loss from the side surface of the light guide member 5, the light blocking member 8 is disposed on the outer side of the light guide member 5, so that the light passing through the light guide member 5 can be concentrated and emitted from the end of the light guide member 5 opposite to the light emitting surface, which is beneficial to improving the brightness of the light emitting surface. The surface of the light blocking member 8 preferably has good light reflection capability, and light rays emitted to the surface of the light blocking member 8 can enter the light guide member 5 again after being reflected, so that loss of light energy is reduced.

In some embodiments, the light emitting element 4 includes a plurality of light beads 41, and each light bead 41 is disposed on a side surface of the first end 201 of the circuit board in the width direction of the battery pack.

In some embodiments, one light guide 5 is opposite to the light emitting surface of the plurality of light beads 41, and the light guide 5 has a wider dimension along the width direction of the battery pack, as shown in fig. 2 and 3.

In other embodiments, the battery pack includes a plurality of light guide members 5, each light guide member 5 corresponds to one of the light beads 41, and the first side wall 13 also has a plurality of light through holes 134 corresponding to each light guide member 5, and each light guide member 5 extends from the light emitting surface of the opposite light bead 41 into the corresponding light through hole 134.

Preferably, the plurality of light guides 5 are connected in a row by a connector 52 so that the plurality of light guides 5 are adapted to be integrally mounted. The battery pack comprises a plurality of light blocking members 8 which are arranged at intervals along the width direction, the light blocking members 8 are connected to the first surface 301 of the battery cell assembly 3, and each light guide member 5 is arranged between two adjacent light blocking members 8. Preferably, each light blocking member 8 extends outside the lamp bead 41 of the light emitting element 4, so that the loss of light from the side of the lamp bead 41 can be further reduced.

In some embodiments, the first end 201 of the circuit board 2 is further provided with a second button 72, the second button 72 is used for controlling the switch of the light emitting element 4, the first side wall 13 is movably provided with a first button 71, and a linkage 73 is arranged between the first button 71 and the second button 72, so that when the first button 71 is operated, the first button 71 acts on the second button 72 through the linkage 73 to change the switch state thereof.

Preferably, the second button 72 is disposed on a side of the circuit board 2 facing the cell assembly 3, and the first button 73 is disposed on the top 131 of the first sidewall 13. That is, the second button 72 is located in the aforementioned first space to make full use of the space inside the housing 1.

It should be noted that, in order to avoid interference with the light guide 5 when the second button 72 and/or the linkage member 73 are moved, the light guide 5 is provided with a relief hole 51 or a relief space is formed between adjacent light guide 5 at intervals.

The battery pack further includes an electrical interface 6 provided in the housing 1, the electrical interface 6 being electrically connected with the wiring board 2, and a through hole corresponding to the electrical interface 6 being provided on the housing 1 to allow an external device to be electrically connected with the electrical interface 6 through the through hole.

Preferably, the electrical interface 6 is electrically connected to the second end 202 of the circuit board 2, and the second side wall 14 is provided with an electrical through hole 141, and the electrical interface 6 is disposed near the second side wall 14 opposite to the electrical through hole 141.

The end of the cell assembly 3 adjacent to the second side wall 14 has an arcuate second surface 302, the second surface 302 extending from the side opposite the circuit board 2 to the side opposite the second side wall 14. In some embodiments, the second surface 302 is the surface of the second cell 32, as shown in fig. 4. In other embodiments, the second surface 302 is a surface of the armature 33.

The projection of the electrical interface 6 in the thickness direction of the battery pack overlaps with the projection of the second surface 302 in this direction. That is, the electrical interface 6 is disposed in the gap between the arcuate second surface 302 and the circuit board 2, which not only ensures that the electrical interface 6 is disposed opposite to the electrical through hole 141, but also facilitates the electrical connection between the electrical interface 6 and the second end of the circuit board, and further makes full use of the gap formed by the arcuate surface, thereby having multiple functions and making the internal structure of the battery pack more compact.

In some embodiments, the electrical interface 6 includes a plurality of interfaces for making electrical connections, each of which is disposed in sequence along the width of the battery pack. Specifically, as shown in fig. 8, the electrical interface 6 includes at least one positive electrode interface 61, at least one negative electrode interface 62, and at least one communication interface 63. Further, the electrical interface 6 further comprises at least one USB interface 64. As shown in fig. 8, the electrical interface 6 includes two USB interfaces 64 of different models. The electrical interface 6 further comprises three communication interfaces 63, different communication interfaces 63 being adapted to different communication protocols.

In some embodiments, the cell assembly 3 includes a plurality of cells, each cell being disposed in sequence from the first sidewall 13 to the second sidewall 14, and an axis of each cell being parallel to a width direction of the battery pack. The plurality of cells are compactly arranged in a staggered manner up and down, so that a plurality of gaps with different sizes are formed between the cell assemblies 3 and the circuit board 2. Through staggering from top to bottom each electric core, be favorable to reducing the overall length of electric core subassembly 3 for the electric core is arranged compacter, on the other hand makes the air current can flow in the clearance of adjacent electric core more effectively, thereby improves the radiating efficiency in the shell 1.

Preferably, when the cells are staggered up and down, the shortest distance between the second surface 302 and the circuit board 2 is made larger than the shortest distance between the first surface 301 and the circuit board 2, which requires a larger space in view of the generally larger volume of the electrical interface 6.

In some embodiments, as shown in fig. 4, a first vent 130 is provided on the top 131 of the first sidewall 13, and a second vent 140 is provided on the side of the second sidewall 14 adjacent to the lower wall 12. The heat dissipation path 10 communicating the first vent 130 and the second vent 140 is provided in the housing 1, so that good heat dissipation can be obtained inside the housing 1. Preferably, the heat dissipation channel 10 is formed between the circuit board 2 and the cell assembly 3 and/or between the cell assembly 3 and the lower wall 12.

The circuit board 2 of the present utility model may be an integral PCB board, or may be a plurality of separate PCB boards, which is not limited in this disclosure, that is, the first end 201 and the second end 202 of the circuit board may be two separate PCB boards.

In the embodiment shown in fig. 10, when the battery pack is assembled, the circuit board 2 is first installed at a preset position of the upper wall 11 of the housing 1, then the light guide members 5 connected in a row are arranged in the housing 1, and since one end of each light guide member 5 can be embedded into the light through hole 134, each light guide member 5 can be accurately positioned by using the light through hole 134, one end of each light guide member 5 is ensured to be opposite to the lamp bead 41 on the circuit board 2 one by one, the side wall of each light guide member 5 abuts against the first side 132 of the first side wall 13, then the battery pack 3 is integrally installed in the housing, the light blocking members 8 arranged at intervals on the battery pack 3 can further keep each light guide member 5 at the preset position thereof, and finally the lower wall 12 of the housing 1 is installed, thus completing the assembly of the whole battery pack. The light guide member 5 of the present utility model can be stably maintained at a predetermined position through the light passing hole 134, the first side 132, the light blocking member 8, and the first surface 301 of the battery cell assembly 3, without providing an additional supporting member, which is advantageous for further reducing the size of the battery pack.

According to another aspect of the present utility model, there is provided a battery pack including a case 1 and a plurality of cells disposed in the case 1, the case 1 having an upper wall 11 extending in a length direction and a width direction of the battery pack, the plurality of cells being disposed in a row along the length direction of the battery pack, the plurality of cells including a first cell 31 and a second cell 32 disposed at both ends of the case 1, as shown in fig. 15, a shortest distance between the first cell 31 and the upper wall 11 being H1, a shortest distance between the second cell 32 and the upper wall 11 being H2, H1 < H2, and a first module and a second module disposed in the case 1, the first module being disposed between the first cell 31 and the upper wall 11, the second module being disposed between the second cell 32 and the upper wall 11.

Since the gap between the second cell 32 and the upper wall 11 is larger than the gap between the first cell 31 and the upper wall 11, a larger-sized component can be provided between the second cell 32 and the upper wall.

In the embodiment, the battery cells are arranged in a staggered manner, so that the inner space of the shell 1 is fully utilized, meanwhile, the arrangement of the battery cells in a staggered manner can enable each battery cell to be arranged more compactly, and the overall length of the battery pack is reduced.

Preferably, each cell in the housing 1 is staggered up and down, so that an included angle is formed between the connecting line of the centers of two adjacent cells and the horizontal plane.

In some embodiments, the first component includes a light emitting element 4 and a light guiding member 5, where the light emitting element 4 is electrically connected to the electric core and adapted to obtain electric energy from the electric core to emit light, and the light guiding member 5 is used to guide the light emitted by the light emitting element 4 to the light emitting surface on the housing 1; the assembly two comprises an electrical interface 6, the electrical interface 6 being electrically connected to the electrical core, the electrical interface 6 being adapted to be electrically connected to an external connector.

According to another aspect of the present utility model, there is provided a battery pack, including a housing 1 and a plurality of cells disposed in the housing 1, wherein a circuit board 2 is further disposed between the housing 1 and the plurality of cells, the housing 1 has an upper wall 11 extending along a length direction and a width direction of the battery pack, the plurality of cells are disposed in a row along the length direction of the battery pack, the plurality of cells include a first cell 31 and a second cell 32 disposed at two ends of the housing 1, the circuit board 2 extends between the first cell 31 and the upper wall 11, a shortest distance between the first cell 31 and the circuit board 2 is H3, and a shortest distance between the second cell 32 and the upper wall 11 is H4, H3 < H4, as shown in fig. 16. The battery pack further includes a first component and a second component disposed in the housing 1, the first component being disposed between the first cell 31 and the circuit board 2, and the second component being disposed between the second cell 32 and the upper wall 11.

According to another aspect of the present utility model, there is provided a battery pack, including a housing 1 and a plurality of electric cells disposed in the housing 1, a circuit board 2 is further disposed between the housing 1 and the electric cells, the housing 1 has an upper wall 11 extending along a length direction and a width direction of the battery pack, the electric cells are arranged along the length direction of the battery pack, the electric cells include an electric cell one 31 and an electric cell two 32 disposed at two ends of the housing 1, the circuit board 2 extends above the electric cell one 31 and the electric cell two 32, a shortest distance between the electric cell one 31 and the circuit board 2 is H5, a shortest distance between the electric cell two 32 and the circuit board 2 is H6, H5 is less than H6, a component one is disposed between the electric cell one and the circuit board, and a component two is disposed between the electric cell two and the upper wall.

The foregoing has outlined the basic principles, features, and advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (20)

1. The utility model provides a battery package, includes shell, circuit board and electric core subassembly, the circuit board with electric core subassembly sets up in the shell, the circuit board with electric core subassembly electricity is connected in order to be used for managing electric core subassembly's charge-discharge, its characterized in that, the battery package still includes light emitting component, light emitting component sets up on the circuit board, thereby by circuit board control light emitting component's work, have out the plain noodles on the shell, light emitting component's light is suitable for through go out the plain noodles and shine outside the shell.

2. The battery pack according to claim 1, wherein the housing includes an upper wall extending in a length direction and a width direction of the battery pack, the wiring board is disposed between the upper wall and the cell assembly, the housing further includes a first side wall extending in the width direction and the thickness direction of the battery pack, at least a portion of the first side wall forms a light-emitting surface, the light-emitting element is disposed on a side of the wiring board facing the cell assembly, and the light-emitting element is located at an end of the wiring board near the first side wall.

3. The battery pack according to claim 2, wherein an end of the cell assembly adjacent to the first side wall has an arcuate first surface extending from a side opposite to the wiring board to a side opposite to the first side wall, and a projection of the light emitting element in a thickness direction of the battery pack overlaps with a projection of the first surface in the direction.

4. The battery pack according to claim 3, wherein the first side wall includes a top portion and a first side portion connecting the top portion and the upper wall in an inclined manner, and a projection of the wiring board and the light emitting element in a length direction of the battery pack overlaps with a projection of the first side portion in the direction.

5. The battery pack as claimed in any one of claims 2 to 4, further comprising a light guide member disposed between the light emitting surface of the light emitting element and the light emitting surface of the first side wall, the light guide member being configured to guide light emitted from the light emitting element toward the light emitting surface.

6. The battery pack of claim 5, wherein the light emitting element comprises a plurality of light beads, the battery pack comprises a plurality of light guide members corresponding to the light beads one by one, the first side wall has a plurality of light passing holes corresponding to the light guide members, the light passing holes form the light emitting surface, and each light guide member extends from the light emitting surface of the corresponding light bead into the corresponding light passing hole.

7. The battery pack as claimed in claim 6, further comprising a light blocking member provided outside each of the light guide members, the light blocking member for reducing light lost from a side surface of the light guide member so that light is concentrated to be emitted from an end of the light guide member opposite to the light emitting surface, the light blocking member extending to an outside of each of the lamp beads.

8. The battery pack of claim 6, wherein a plurality of the light guides are connected in a row by a connector such that the plurality of light guides are adapted to be integrally mounted.

9. The battery pack as claimed in claim 6, comprising a plurality of light blocking members disposed at intervals in a width direction of the battery pack, the light blocking members being coupled to a surface of the cell assembly, each of the light guiding members being disposed between two adjacent light blocking members.

10. The battery pack according to claim 5, wherein a second button for controlling the switching of the light emitting element is further provided on the circuit board, a first button is movably provided on the first side wall, and a linkage member is provided between the first button and the second button, so that when the first button is operated, the first button acts on the second button through the linkage member to change the switching state thereof.

11. The battery pack of claim 10, wherein the second button is located at an end of the circuit board adjacent to the first side wall, the second button is disposed on a side of the circuit board facing the cell assembly, and the first button is disposed on top of the first side wall.

12. The battery pack of any one of claims 2-4, further comprising an electrical interface electrically connected to the circuit board, the housing including a second side wall opposite the first side wall, an electrical through-hole being provided in the second side wall, the electrical interface being disposed adjacent the second side wall opposite the electrical through-hole, an external device being adapted to electrically connect to the electrical interface through the electrical through-hole.

13. The battery pack of claim 12, wherein the electrical interface is connected to an end of the circuit board adjacent to the second side wall, the end of the cell assembly adjacent to the second side wall having an arcuate second surface extending from a side opposite the circuit board to a side opposite the second side wall, a projection of the electrical interface in a thickness direction of the battery pack overlapping a projection of the second surface in the direction.

14. The battery pack of claim 13, wherein a shortest distance between the second surface and the circuit board is greater than a shortest distance between the first surface and the circuit board.

15. The battery pack of claim 13, wherein the cell assembly comprises at least three cells, each of the cells being disposed in sequence from the first side wall to the second side wall, and wherein an axis of each of the cells is parallel to a width direction of the battery pack, each of the cells being compactly disposed in a staggered manner up and down so as to form a plurality of gaps of unequal sizes between the cell assembly and the wiring board.

16. The utility model provides a battery package, includes the shell and sets up a plurality of electric core in the shell, its characterized in that, the shell has the edge the length direction of battery package and the upper wall that width direction extends, a plurality of electric core is followed the length direction arrangement of battery package sets up, a plurality of electric core is including being located respectively electric core one and electric core two at shell both ends, electric core one with the shortest distance between the upper wall is H1, electric core two with the shortest distance between the upper wall is H2, H1 < H2, electric core one with be provided with the subassembly between the upper wall, electric core two with be provided with the subassembly two between the upper wall.

17. The battery pack comprises a shell and a plurality of electric cores arranged in the shell, wherein a circuit board is further arranged between the shell and the electric cores, the battery pack is characterized in that the shell is provided with an upper wall extending along the length direction and the width direction of the battery pack, the electric cores are arranged along the length direction of the battery pack, the electric cores comprise an electric core I and an electric core II which are respectively positioned at two ends of the shell, the circuit board extends between the electric core I and the upper wall, the shortest distance between the electric core I and the circuit board is H3, the shortest distance between the electric core II and the upper wall is H4, H3 is less than H4, the battery pack further comprises a component I and a component II which are arranged in the shell, the component I is arranged between the electric core I and the circuit board, and the component II is arranged between the electric core II and the upper wall.

18. The utility model provides a battery package, includes the shell and sets up a plurality of electric core in the shell, the shell with a plurality of still be provided with the circuit board between the electric core, its characterized in that, the shell has the edge the length direction of battery package and the upper wall that width direction extends, a plurality of electric core is followed the length direction arrangement of battery package sets up, a plurality of electric core is including being located respectively electric core one and electric core two at shell both ends, the circuit board extends to electric core one and electric core two's top, electric core one with the shortest distance between the circuit board is H5, electric core two with the shortest distance between the circuit board is H6, H5 < H6, electric core one with be provided with the subassembly between the circuit board, electric core two with be provided with the subassembly two between the upper wall.

19. The battery pack of any one of claims 16-18, wherein the first component comprises a light emitting element electrically connected to the electrical core and adapted to obtain electrical energy from the electrical core for emitting light, and a light guide for guiding the light emitted by the light emitting element to a light exit surface on the housing; the second component comprises an electrical interface, wherein the electrical interface is electrically connected with the electric core, and the electrical interface is suitable for being electrically connected with an external connector.

20. The battery pack of any one of claims 16-18, wherein at least two adjacent cells are staggered up and down among the plurality of cells such that an included angle is formed between a line connecting centers of the two adjacent cells and a horizontal plane.