Battery pack

Abstract

The utility model discloses a battery pack, which solves the problem that the assembly process and the cost of the battery pack are increased due to the troublesome installation of a shading part in the existing battery pack. The battery pack comprises a shell, a battery cell assembly, a PCB and a light guide part, a containing cavity is formed in the shell, the battery cell assembly, the PCB and the light guide part are contained in the containing cavity, the light guide part comprises a plurality of light guide parts which are arranged at intervals, a plurality of light emitting units are arranged on the PCB, and the light emitting units are arranged in the containing cavity. The light guide parts conduct light emitted by the light emitting unit, the battery cell assembly comprises a battery cell support, the battery cell support is provided with at least one first light shielding plate, and the first light shielding plate is arranged between every two adjacent light guide parts. According to the battery pack provided by the utility model, the follow-up assembly difficulty and the assembly cost of the battery pack can be reduced, and meanwhile, the shading plate is arranged between the two adjacent light guide parts, so that a certain light guide part limiting effect and a certain light guide part mounting mistake-proofing effect can be achieved.

Description

Technical Field

[0001] The utility model relates to the field of battery packs, in particular to a lighting indication structure of a battery pack. Background Art

[0002] A light-emitting unit and a light guide are usually provided on a battery pack. An optical outlet hole is provided on the housing of the battery pack, and the light emitted by the light-emitting unit is emitted from the optical outlet hole through the light guide. Among them, there are multiple light-emitting units, and there are also multiple light guides. By controlling different light-emitting units to emit light, the remaining power of the battery pack is displayed.

[0003] In order to avoid light crosstalk between light guides, a light-shielding member is usually separately provided in the battery pack, and the light-shielding member is used to shield light between adjacent light guides. However, the installation of the light-shielding member is relatively troublesome, resulting in an increase in the assembly process and cost of the battery pack. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a battery pack to solve the problems that the installation of the light-shielding member in the existing battery pack is troublesome, resulting in an increase in the assembly process and cost of the battery pack.

[0005] In order to achieve the above technical objectives, a battery pack proposed by the utility model includes a housing, a battery cell assembly, a PCB board and a light guide. A cavity is provided in the housing, and the battery cell assembly, the PCB board and the light guide are received in the cavity. The light guide includes a plurality of light guide parts arranged at intervals. A plurality of light-emitting units are provided on the PCB board, and the light guide parts conduct the light emitted by the light-emitting units. The battery cell assembly includes a battery cell bracket, and at least one first light-shielding plate is provided on the battery cell bracket. The first light-shielding plate is arranged between two adjacent light guide parts.

[0006] Preferably, the first light-shielding plate is integrally formed on the battery cell bracket, and a reinforcing rib is further provided on the battery cell bracket. The reinforcing rib is connected between the first light-shielding plate and the battery cell bracket; or,

[0007] At least one reinforcing rib is further provided on the battery cell bracket. At least two first light-shielding plates are provided on the first light-shielding plate. The reinforcing rib is connected between two adjacent first light-shielding plates, or is connected between two adjacent first light-shielding plates and the battery cell bracket.

[0008] Preferably, the light guide is detachably installed on the battery cell bracket or the PCB board by means of a buckle or snap connection.

[0009] Preferably, the PCB board is installed above the battery cell bracket, the light-emitting unit is arranged on the side of the PCB board facing the battery cell bracket, and the light guide is arranged between the PCB board and the battery cell bracket.

[0010] Preferably, a light-emitting hole is provided on the front side of the housing. The light guide part includes a light-receiving surface, a light-emitting surface, and a reflecting surface. The light-receiving surface is provided on the upper side of the light guide part and faces the light-emitting unit. The light-emitting surface is provided on the front side of the light guide part and faces the light-emitting hole. The reflecting surface is provided on the rear side of the light guide part, and the reflecting surface is inclined and gradually approaches the light-emitting surface.

[0011] Preferably, a key switch is further provided on the PCB board. The key switch controls the on / off of the battery pack circuit. The key switch and the light-emitting unit are arranged side by side on the PCB board. A stop rib is further provided on the battery cell bracket, and the stop rib stops at the rear end of the key switch.

[0012] Preferably, an elastic rib is further provided on the battery cell bracket. The elastic rib is provided at the front end of the key switch, and the deformation of the elastic rib triggers the key switch.

[0013] Preferably, a second light-shielding plate is further provided on the battery cell bracket. The second light-shielding plate is provided between the light guide member and the elastic rib to prevent the light guide member from leaking light towards the key switch. The second light-shielding plate is connected to the stop rib.

[0014] Preferably, at least part of the surface of the light guide member is textured, or, diffusing powder is added to the light guide member to soften the light emitted by the light guide member.

[0015] Preferably, the housing includes a first housing and a second housing. A light-shielding rib is provided on the first housing and / or the second housing. The light-shielding rib is provided on the front side of the light guide member to prevent light leakage from the gap at the covering position of the first housing and the second housing.

[0016] After adopting the above technical solutions, the utility model has the following beneficial effects.

[0017] 1. A battery pack proposed by the present utility model includes a housing, a battery cell assembly, a PCB board, and a light guide member. A cavity is provided in the housing, and the battery cell assembly, the PCB board, and the light guide member are received in the cavity. The light guide member includes a plurality of light guide portions arranged at intervals. A plurality of light emitting units are provided on the PCB board, and the light guide portions conduct the light emitted by the light emitting units. The battery cell assembly includes a battery cell bracket, and at least one first light shielding plate is provided on the battery cell bracket. The first light shielding plate is provided between two adjacent light guide portions. With such a setting, users can more easily see the remaining power of the battery, and will not misjudge due to light crosstalk between two adjacent light guide portions. Moreover, since the first light shielding plate is provided on the battery cell bracket, the subsequent assembly difficulty and assembly cost of the battery pack can be reduced. At the same time, the light shielding plate is provided between two adjacent light guide portions, which can play a role in limiting the light guide member to a certain extent and preventing misassembly of the light guide member. On the one hand, it can prevent the installed light guide member from moving, resulting in the inability of the light guide member to correspond to the light emitting unit and the light outlet hole. On the other hand, it can also prevent the assembly personnel from installing the light guide member in the battery pack in the wrong direction.

[0018] 2. The first light shielding plate is integrally formed on the battery cell bracket. With such a setting, the first light shielding plate does not need to be installed, further reducing the assembly difficulty and assembly cost of the battery pack. At the same time, the first light shielding plate is integrally formed on the battery cell bracket, which can also improve the strength of the combined position of the two and increase the service life of the battery cell bracket.

[0019] 3. Reinforcing ribs are also provided on the battery cell bracket. The reinforcing ribs are connected between the first light shielding plate and the battery cell bracket; or, at least one reinforcing rib is provided on the battery cell bracket, and at least two first light shielding plates are provided. The reinforcing ribs are connected between two adjacent first light shielding plates, or connected between two adjacent first light shielding plates and the battery cell bracket. With such a setting, the strength of the first light shielding plate can be better increased, and the breakage of the first light shielding plate caused by the collision of the battery cell bracket during the assembly process can be avoided, thus affecting its light shielding effect.

[0020] 4. The light guide member is installed on the PCB board, and the light guide member can be accurately aligned with the light emitting unit, which is beneficial to improving the light efficiency and reducing the light loss. Moreover, during the production process of the PCB board, the light guide member can be installed in place in advance, simplifying the subsequent assembly process of the battery pack; the light guide member is installed on the battery cell bracket, which can reduce the load-bearing pressure on the PCB board and improve the service life of the PCB board. At the same time, the light guide member can also be better aligned with the housing, improving the light output effect of the light guide member. And the light guide member can be pre-installed on the battery cell bracket, simplifying the subsequent assembly process of the battery pack.

[0021] 5. The PCB board is installed above the battery cell bracket, the light emitting units are provided on the side of the PCB board facing the battery cell bracket, and the light guide member is provided between the PCB board and the battery cell bracket. With such a setting, the height occupied by the light guide member in the battery pack is reduced, thereby reducing the thickness of the battery pack, and the battery pack is more compact.

[0022] 6. A light outlet hole is provided on the front side of the shell, and the light guide part includes a light receiving surface, a light emitting surface and a reflecting surface. The light receiving surface is provided on the upper side of the light guide part and faces the light emitting unit, the light emitting surface is provided on the front side of the light guide part and faces the light outlet hole, and the reflecting surface is provided on the rear side of the light guide part. The reflecting surface is provided at an angle and gradually approaches the light outlet surface. Since the battery cell is cylindrical, the outer side of the battery cell holder is also cylindrical accordingly, and there is space between the front end of the battery cell holder and the PCB board. The light outlet hole is provided on the front side of the shell, and accordingly, the light guide is also provided on the front side of the shell. Therefore, the light guide can use the space between the battery cell holder and the PCB board. At the same time, the light receiving surface and the light emitting surface of the light guide part are provided on the upper side and the front side thereof respectively, and the reflecting surface is provided at an angle on the rear side of the light guide part, so that the light guide part can better use the space there, further reducing the height of the battery pack occupied by the light guide part, and the battery pack can be further designed to be compact.

[0023] 7. A key switch is also provided on the PCB board, which controls the on and off of the battery pack circuit. The key switch is arranged in parallel with a number of light-emitting units, and a stop rib is also provided on the battery holder, which stops at the rear end of the key switch. Since force needs to be applied to the key switch when triggering the key switch, and the key switch is welded on the PCB board, long-term use may cause desoldering between the pins of the key switch and the PCB board, resulting in the key switch being unable to be triggered or the key switch being unable to switch the battery pack circuit on and off. By providing a stop rib at the rear end of the key switch, the stop rib can effectively prevent the key switch from moving backward when it is subjected to force, thereby reducing or avoiding the occurrence of desoldering between the pins and the PCB board, and effectively increasing the service life of the key switch.

[0024] 8. The battery holder is also provided with an elastic rib, which is provided at the front end of the key switch, and the elastic rib is deformed to trigger the key switch. In this arrangement, force is applied to the elastic rib to deform the elastic rib in the direction of the key switch, thereby triggering the key switch. Compared with directly pressing to trigger the key switch, since the key switch is usually small, direct pressing cannot trigger the key switch well. By adding the elastic rib, the force application area is increased, and the key switch can be triggered more easily.

[0025] 9. A second light shielding plate is also provided on the battery support. The second light shielding plate is provided between the light guide and the elastic rib to prevent the light guide from leaking toward the key switch. The second light shielding plate is connected to the stop rib. This arrangement can effectively prevent the light guide from leaking toward the key switch, thereby improving the external appearance of the battery pack; at the same time, the second light shielding plate is connected to the stop rib, thereby improving the strength of the stop rib, and the stop rib can better stop the key switch, further preventing the occurrence of desoldering of the key switch pins, and improving the service life of the key switch.

[0026] 10. At least part of the surface of the light guide is sun-textured, or light-scattering powder is added to the light guide to soften the light emitted by the light guide. This arrangement makes the light emitted from the light outlet softer, improving the user's perception when checking the remaining power of the battery pack.

[0027] 11. The housing includes a first shell and a second shell. The first shell and / or the second shell are provided with a light shielding rib, which is arranged on the front side of the light guide to prevent light leakage from the gap at the covering position of the first shell and the second shell. By providing the light shielding rib on the first shell and / or the second shell, and the light shielding rib is arranged on the front side of the light guide, light leakage from the gap at the covering position of the shell can be effectively prevented, thereby improving the external appearance of the battery pack.

[0028] These features and advantages of the present invention will be disclosed in detail in the following specific implementation manners and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is an exploded view of a battery pack in an embodiment of the utility model;

[0030] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0031] Figure 3 for Figure 1 The enlarged view of point B in the middle;

[0032] Figure 4 for Figure 1 Enlarged view of point C in the middle;

[0033] Figure 5 This is a schematic diagram of the installation of the battery core assembly, PCB board and light guide in the embodiment of the utility model;

[0034] Figure 6 A schematic diagram of a light guide member in an embodiment of the utility model;

[0035] Figure 7 A schematic diagram of a battery pack in an embodiment of the present utility model;

[0036] Figure 8 This is an exploded view of another battery pack in an embodiment of the present utility model;

[0037] Figure 9 for Figure 8 The enlarged view of point D in the middle;

[0038] Figure 10 for Figure 8 Enlarged view of point E in the middle;

[0039] Figure 11 This is a schematic diagram of the installation of another battery core assembly, PCB board and light guide in an embodiment of the utility model;

[0040] Figure 12 Schematic diagram of another light guide member in an embodiment of the present utility model.

[0041] Reference numerals:

[0042] 100, housing; 101, light-emitting hole; 110, first housing; 120, second housing; 130, button part; 140, light-shielding rib; 200, battery cell assembly; 210, battery cell bracket; 211, first bracket; 212, second bracket; 213, first light-shielding plate; 214, reinforcing rib; 215, second light-shielding plate; 216, positioning groove; 217, stop rib; 218, elastic rib; 220, battery cell; 300, PCB board; 301, clamping hole; 310, button switch;

[0043] 400, light guide member; 410, light guide part; 411, light-receiving surface; 412, light-emitting surface; 413, reflecting surface; 420, connecting part; 421, hook; 422, positioning key. Detailed implementation manners

[0044] The technical solutions of the embodiments of the present utility model will be explained and described below with reference to the accompanying drawings of the embodiments of the present utility model. However, the following embodiments are only the preferred embodiments of the present utility model and not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present utility model.

[0045] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model.

[0046] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" and "several" is two or more, unless otherwise clearly defined.

[0047] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "coupling", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0048] Embodiment 1:

[0049] As Figures 1 to 12 shown, a battery pack proposed in an embodiment of the present utility model includes a housing 100 and a battery cell assembly 200, a PCB board 300, etc. installed in the housing. A plurality of light-emitting units (not shown) are provided on the PCB board 300, and the battery pack further includes a light guide member 400 that conducts the light emitted by the light-emitting units. Among them, there are a plurality of light-emitting units, which are arranged at intervals on the PCB board 300, and correspondingly, there are a plurality of light guide portions 410, which are arranged at intervals on the light guide member 400.

[0050] The battery cell assembly 200 includes a battery cell 220 and a battery cell bracket 210. A first light-shielding plate 213 is provided on the battery cell bracket 210, and the first light-shielding plate 213 is disposed between two adjacent light guide portions 410 to prevent light crosstalk between adjacent light guide portions 410.

[0051] With such a setting, users can more easily see the remaining power of the battery, and will not misjudge due to light crosstalk between two adjacent light guide portions 410. Moreover, since the first light-shielding plate 213 is pre-installed on the battery cell bracket 210, the subsequent assembly difficulty and assembly cost of the battery pack can be reduced. At the same time, the first light-shielding plate 213 is disposed between two adjacent light guide portions 410, which can play a role in limiting the light guide member 400 to a certain extent and preventing misassembly of the light guide member 400. On the one hand, it can prevent the installed light guide member 400 from moving so that the light guide member 400 cannot correspond to the light-emitting unit and the light-emitting hole 101. On the other hand, it can also prevent the assembly personnel from installing the light guide member 400 into the battery pack in the wrong direction.

[0052] Among them, the projection of the light guide portion 410 on the first light-shielding plate 213 does not exceed the range of the first light-shielding plate 213. In this way, the first light-shielding plate 213 can effectively prevent light leakage from the side of the light guide portion 410.

[0053] It can be understood that the housing 100 can be made of a transparent material. In this way, the light guide member 400 can directly emit light through the transparent housing 100 without opening a light-emitting hole on the housing 100.

[0054] In this embodiment, a plurality of light-emitting holes 101 are provided on the outer shell 100, and the light guide portion 410 is located between the light-emitting unit and the light-emitting holes 101.

[0055] Preferably in this embodiment, the first light-shielding plate 213 is integrally formed on the battery cell support 210. With this arrangement, the first light-shielding plate 213 does not need to be installed, further reducing the assembly difficulty and assembly cost of the battery pack. At the same time, the first light-shielding plate 213 being integrally formed on the battery cell support 210 can also improve the strength of the combined position of the two and increase the service life of the battery cell support 210.

[0056] In some other embodiments, the first light-shielding plate 213 can also be pre-installed on the battery cell support 210.

[0057] In this embodiment, as Figure 1 、 Figure 7 shown, the battery cell support 210 includes a first support 211 and a second support 212. The first support 211 covers the second support 212, and a cavity for accommodating the battery cell 220 is formed between the first support 211 and the second support 212. When the first light-shielding plate 213 is provided as one, the first light-shielding plate 213 can be provided on the first support 211 or on the second support 212. When the first light-shielding plate 213 is provided as multiple, multiple first light-shielding plates 213 can be provided on the first support 211 or on the second support 212; or some of the first light-shielding plates 213 can be provided on the first support 211 and the remaining first light-shielding plates 213 can be provided on the second support 212.

[0058] Preferably in this embodiment, as Figure 1 、 Figure 5 、 Figure 8 、 Figure 11 shown, the PCB board 300 is installed above the battery cell support 210. The light-emitting unit is provided on the side of the PCB board 300 facing the battery cell support 210, and the light guide member 400 is provided between the PCB board 300 and the battery cell support 210.

[0059] With this arrangement, the height occupied by the light guide member 400 in the battery pack is reduced, thereby reducing the thickness of the battery pack and making the battery pack more compact.

[0060] More preferably in this embodiment, as Figure 1 、 Figure 4 、 Figure 5 、 Figure 7 、 Figure 8 、 Figure 11As shown, the light-emitting hole 101 is provided on the front side of the housing 100. The light guide part 410 includes a light-receiving surface 411, a light-emitting surface 412, and a reflecting surface 413. The light-receiving surface 411 is provided on the upper side of the light guide part 410 and faces the light-emitting unit. The light-emitting surface 412 is provided on the front side of the light guide part 410 and faces the light-emitting hole 101. The reflecting surface 413 is provided on the rear side of the light guide part 410. The reflecting surface 413 is inclined and gradually approaches the light-emitting surface 412.

[0061] Among them, at least part of the reflecting surface 413 can be an inclined surface, can also be an arc surface, or can be a combination of an inclined surface and an arc surface.

[0062] Since the battery cell 220 is cylindrical, the outer side of the battery cell holder 210 is correspondingly cylindrical. There is a space between the front end of the battery cell holder 210 and the PCB board 300. The light-emitting hole 101 is provided on the front side of the housing 100. Correspondingly, the light guide member 400 is also provided on the front side of the housing 100. Therefore, the light guide member 400 can utilize the space between the battery cell holder 210 and the PCB board 300. At the same time, the light-receiving surface 411 and the light-emitting surface 412 of the light guide part 410 are respectively provided on its upper side and front side, and the reflecting surface 413 is inclinedly provided on the rear side of the light guide part 410. Thus, the light guide part 410 can better utilize the space there, further reducing the height of the battery pack occupied by the light guide member 400, and the battery pack can be further designed to be more compact.

[0063] Among them, since the light-emitting unit usually protrudes from the PCB board 300, the upper end surface of the light guide part 410 is set as a stepped surface that is partially concave downward to accommodate the protruding light-emitting unit. The concave surface is the light-receiving surface 411, and the non-concave surface is used to support the PCB board 300.

[0064] In this embodiment, the light guide member 400 further includes a connecting part 420, and a plurality of light guide parts 410 and the connecting part 420 are integrally formed.

[0065] In another preferred embodiment, the light guide member 400 is detachably mounted on the PCB board 300 by means of buckles or snap connections.

[0066] Specifically, the connecting part 420 is provided with a hook 421, and the PCB board 300 is provided with a snap hole 301. The hook 421 is snapped into the snap hole 301 to mount the light guide member 400 on the PCB board 300.

[0067] It can be understood that the connecting part 420 and the PCB board 300 can also be connected and mounted in other ways. For example: the buckle on the connecting part 420 and the slot on the PCB board 300, connection by screws, cooperation between the snap spring groove on the positioning post and the snap spring, etc.

[0068] With such a setting, the light guide member 400 can be accurately aligned with the light emitting unit, which is beneficial to improving the light efficiency and reducing the light loss. Moreover, during the production process of the PCB board 300, the light guide member 400 can be pre-installed in place, simplifying the subsequent assembly process of the battery pack.

[0069] In another preferred embodiment, as Figures 9 to 12 shown, the light guide member 400 is detachably mounted on the battery cell holder 210 by means of a snap or clamping connection.

[0070] Specifically, a cylindrical positioning key 422 is provided on the connecting portion 420, and a positioning groove 216 is provided on the battery cell holder 210. The positioning key 422 is snap-fitted in the positioning groove 216 to mount the light guide member 400 on the battery cell holder 210.

[0071] In this embodiment, the positioning key 422 extends horizontally. Correspondingly, the positioning groove 216 also extends horizontally. An opening is provided at the upper end of the positioning groove 216. The positioning key 422 is installed downward into the positioning groove 216, and deformation is generated by the extrusion between the two, so as to snap the positioning key 422 in the positioning groove 216.

[0072] In some other embodiments, the positioning key 422 may also extend longitudinally. Correspondingly, the positioning groove 216 also extends longitudinally. An opening is provided at the upper end of the positioning groove 216. The positioning key 422 is installed downward into the positioning groove 216, and an interference fit between the two is achieved, so as to snap the positioning key 422 in the positioning groove 216.

[0073] In some other embodiments, the positioning key 422 may also be of other shapes, such as a square key, a spline key, etc., and the shape of the positioning groove 216 is adapted to the shape of the positioning key 422.

[0074] Mounting the light guide member 400 on the battery cell holder 210 can reduce the load-bearing pressure on the PCB board 300 and increase the service life of the PCB board 300. At the same time, the light guide member 400 can also be better aligned with the housing 100, improving the light output effect of the light guide member 400. Moreover, the light guide member 400 can be pre-installed on the battery cell holder 210, simplifying the subsequent assembly process of the battery pack.

[0075] In another preferred embodiment, as Figure 2 、 Figure 9 shown, the battery cell holder 210 is further provided with a reinforcing rib 214, and the reinforcing rib 214 is connected between the first light shielding plate 213 and the battery cell holder 210.

[0076] In some other embodiments, at least one reinforcing rib 214 is provided, and at least two first light shielding plates 213 are provided. The reinforcing rib 214 is connected between two adjacent first light shielding plates 213.

[0077] In some other embodiments, at least one reinforcing rib 214 is provided, at least two first shading plates 213 are provided, and the reinforcing rib 214 is connected between two adjacent first shading plates 213 and the battery cell bracket 210 .

[0078] Such a configuration can better increase the strength of the first light shielding plate 213 and prevent the first light shielding plate 213 from being damaged and affecting its light shielding effect due to collision of the battery holder 210 during assembly.

[0079] In order to soften the light emitted by the light guide 400 , in another preferred embodiment, at least a portion of the surface of the light guide 400 is subjected to a tanning treatment to soften the light emitted by the light guide 400 .

[0080] In some other embodiments, light guide 400 is added with light-scattering powder to soften the light emitted by light guide 400. Wherein, light guide 400 is made of plastic material and is formed by injection molding. Light guide 400 is usually made of PC or acrylic material.

[0081] Such an arrangement makes the light emitted from the light outlet hole 101 softer, thereby improving the user's viewing experience when checking the remaining power of the battery pack.

[0082] Embodiment 2:

[0083] Based on the first embodiment, Figure 3 , Figure 4 , Figure 5 , Figure 10 , Figure 11 As shown, in this embodiment, a key switch 310 is further provided on the PCB board 300, and the key switch 310 controls the on and off of the battery pack circuit. The key switch 310 and a plurality of light-emitting units are arranged in parallel, and a stop rib 217 is further provided on the battery cell holder 210, and the stop rib 217 stops at the rear end of the key switch 310.

[0084] Since force needs to be applied to the key switch 310 when triggering it, the key switch 310 is welded on the PCB board 300. Long-term use may cause desoldering between the pins of the key switch 310 and the PCB board 300, resulting in the key switch 310 being unable to be triggered or the key switch 310 being unable to switch the circuit of the battery pack on and off. By providing a stop rib 217 at the rear end of the key switch 310, the stop rib 217 can effectively prevent the key switch 310 from moving backward when force is applied, thereby reducing or avoiding the occurrence of desoldering between the pins and the PCB board 300, and effectively improving the service life of the key switch 310.

[0085]

[0061] A button portion 130 is provided on the housing 100, and a user presses the button portion 130 to trigger a button switch 310, thereby turning the battery pack on or off.

[0086] Preferably, the stop rib 217 is integrally formed on the battery cell bracket 210.

[0087] In this embodiment, preferably, as Figure 3 , Figure 5 , Figure 10 , Figure 11 shown, an elastic rib 218 is further provided on the battery cell bracket 210. The elastic rib 218 is arranged at the front end of the key switch 310, and the deformation of the elastic member triggers the key switch 310.

[0088] With such a setting, when a force is applied to the elastic rib 218 to deform the elastic rib 218 in the direction of the key switch 310, thereby triggering the key switch 310. Compared with directly pressing to trigger the key switch 310, since the key switch 310 is usually small, directly pressing cannot trigger the key switch 310 well. By adding the elastic rib 218, the force application area is increased, and the key switch 310 can be triggered more easily.

[0089] Among them, a key portion 130 is provided on the outer shell 100, and the elastic rib 218 is arranged between the key portion 130 and the key switch 310. The elastic rib 218 includes a fixed end and a free end. The fixed end is connected to the battery cell bracket 210, and the free end abuts against the front end of the key switch 310. When a force is applied to the free end, the free end deforms, or the connection between the free end and the fixed end deforms, thereby triggering the key switch 310 by the free end. The user presses the key portion 130 to deform the elastic rib 218 to trigger the key switch 310.

[0090] Preferably, the elastic rib 218 is integrally formed on the battery cell bracket 210.

[0091] In a more preferred embodiment of this example, as Figure 3 , Figure 5 , Figure 10 , Figure 11 shown, a second light-shielding plate 215 is further provided on the battery cell bracket 210. The second light-shielding plate 215 is arranged between the light guide member 400 and the elastic rib 218 to prevent the light guide member 400 from leaking light in the direction of the key switch 310. The second light-shielding plate 215 is connected to the stop rib 217.

[0092] With such a setting, it can effectively prevent the light guide member 400 from leaking light in the direction of the key switch 310, thereby improving the external appearance of the battery pack; at the same time, the second light-shielding plate 215 is connected to the stop rib 217, thereby improving the strength of the stop rib 217. The stop rib 217 can better stop the key switch 310, further avoiding the occurrence of the situation of the pin of the key switch 310 being de-soldered and improving the service life of the key switch 310.

[0093] Preferably, the second light-shielding plate 215 is integrally formed on the battery cell bracket 210.

[0094] Embodiment Three:

[0095] Based on Embodiments 1 and 2, as Figure 1 , Figure 5 shown, in this embodiment, the housing 100 includes a first housing 110 and a second housing 120. A light-shielding rib 140 is provided on the first housing 110. The light-shielding rib 140 is disposed on the front side of the light guide member 400 to prevent light leakage from the gap at the covering position of the first housing 110 and the second housing 120.

[0096] Among them, the first housing 110 is disposed below the battery cell assembly 200, and the second housing 120 is disposed above the battery cell assembly 200. The first housing 110 and the second housing 120 are covered up and down.

[0097] In some other embodiments, the light-shielding rib 140 can also be provided on the second housing 120; the light-shielding rib 140 can also be partially disposed on the first housing 110 and partially disposed on the second housing 120.

[0098] In some other embodiments, the first housing 110 is disposed on the left side of the battery cell assembly 200, and the second housing 120 is disposed on the right side of the battery cell assembly 200. The first housing 110 and the second housing 120 are covered left and right. The light-shielding rib 140 can be provided on the first housing 110 or on the second housing 120; it can also be partially disposed on the first housing 110 and partially disposed on the second housing 120.

[0099] By providing the light-shielding rib 140 on the first housing 110 and / or the second housing 120, and the light-shielding rib 140 is disposed on the front side of the light guide member 400, light leakage from the gap at the covering position of the housing is effectively avoided, improving the external appearance of the battery pack.

[0100] As described above, it is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Those skilled in the art should understand that the present utility model includes but is not limited to the content described in the drawings and the above specific implementation manner. Any modification that does not deviate from the functional and structural principles of the present utility model will be included in the scope of the claims.

Claims

1. A battery pack, comprising a housing (100), a battery cell assembly (200), a PCB board (300) and a light guide member (400). A cavity is provided in the housing (100), and the battery cell assembly (200), the PCB board (300) and the light guide member (400) are received in the cavity. It is characterized in that, The light guide member (400) includes a plurality of light guide portions (410) arranged at intervals. A plurality of light emitting units are provided on the PCB board (300). The light guide portions (410) conduct the light emitted by the light emitting units. The battery cell assembly (200) includes a battery cell bracket (210). At least one first light shielding plate (213) is provided on the battery cell bracket (210). The first light shielding plate (213) is disposed between two adjacent light guide portions (410).

2. The battery pack according to claim 1, wherein The first light shielding plate (213) is integrally formed on the battery cell bracket (210). A reinforcing rib (214) is further provided on the battery cell bracket (210). The reinforcing rib (214) is connected between the first light shielding plate (213) and the battery cell bracket (210); or, At least one reinforcing rib (214) is further provided on the battery cell bracket (210). At least two first light shielding plates (213) are provided. The reinforcing rib (214) is connected between two adjacent first light shielding plates (213), or is connected between two adjacent first light shielding plates (213) and the battery cell bracket (210).

3. A battery pack according to claim 1, characterized in that, The light guide member (400) is detachably mounted on the battery cell bracket (210) or the PCB board (300) by means of snap-fastening or snap-connection.

4. A battery pack as claimed in claim 1, wherein The PCB board (300) is mounted above the battery cell bracket (210). The light emitting units are disposed on the side of the PCB board (300) facing the battery cell bracket (210). The light guide member (400) is disposed between the PCB board (300) and the battery cell bracket (210).

5. A battery pack according to claim 4, wherein, A light exit hole (101) is provided on the front side of the housing (100). The light guide portion (410) includes a light receiving surface (411), a light exit surface (412) and a reflecting surface (413). The light receiving surface (411) is disposed on the upper side of the light guide portion (410) and faces the light emitting units. The light exit surface (412) is disposed on the front side of the light guide portion (410) and faces the light exit hole (101). The reflecting surface (413) is disposed on the rear side of the light guide portion (410). The reflecting surface (413) is inclined and gradually approaches the light exit surface (412).

6. A battery pack according to claim 1, characterized in that, A key switch (310) is further provided on the PCB board (300). The key switch (310) controls the on / off of the battery pack circuit. The key switch (310) and the light emitting units are arranged side by side on the PCB board (300). A stop rib (217) is further provided on the battery cell bracket (210). The stop rib (217) stops at the rear end of the key switch (310).

7. A battery pack as claimed in claim 6, wherein, An elastic rib (218) is further provided on the battery cell bracket (210). The elastic rib (218) is disposed at the front end of the key switch (310). The deformation of the elastic rib (218) triggers the key switch (310).

8. A battery pack according to claim 7, characterized in that, A second light-shielding plate (215) is further provided on the battery cell bracket (210). The second light-shielding plate (215) is disposed between the light guide member (400) and the elastic rib (218) to prevent the light guide member (400) from leaking light toward the key switch (310). The second light-shielding plate (215) is connected to the stop rib (217).

9. A battery pack according to claim 1, characterized in that, At least a part of the surface of the light guide member (400) is textured, or, diffusing powder is added to the light guide member (400) to soften the light emitted by the light guide member (400).

10. A battery pack according to claim 1, characterized in that, The housing (100) includes a first housing body (110) and a second housing body (120). A light-shielding rib (130) is provided on the first housing body (110) and / or the second housing body (120). The light-shielding rib (130) is disposed on the front side of the light guide member (400) to prevent light leakage from the gap at the covering position of the first housing body (110) and the second housing body (120).

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