CN219203323U - Battery holder - Google Patents

Abstract

The utility model discloses a battery holder for mounting a battery, which comprises an insulating holder, wherein the insulating holder is provided with a containing cavity surrounded by a bottom wall and a surrounding wall, a positive terminal is provided with a main body part which is fixed on the surrounding wall, two opposite sides of the main body part are respectively extended with side parts, each side part is provided with a plurality of positive elastic pieces which extend along the up-down direction in parallel, each positive elastic piece is provided with a positive contact part which enters the containing cavity, the positive contact parts are arranged at the inner side of the surrounding wall along the circumferential direction of the insulating holder and are contacted with the side surface of the battery, and a negative terminal is fixed on the bottom wall and contacted with the bottom surface of the battery, so that the contact points of the positive terminal and the negative terminal with the battery are increased and stably supported against the battery, and the vibration amplitude of the battery is reduced, and therefore, the positive terminal and the negative terminal are well contacted with the battery, so that the battery always keeps stable voltage transmission effect.

Description

Battery holder

[ field of technology ]

The utility model relates to a battery holder, in particular to a battery holder with good anti-seismic performance.

[ background Art ]

Button cell is used in the computer widely because of the volume is less, and button cell installs on the battery holder of computer mainboard generally and is used for the memory power supply, current the battery holder includes an insulating holder and a positive terminal, a negative terminal, the insulating holder has a battery accommodation area, positive terminal including be fixed in the lateral wall of battery accommodation area's fixed part, the both sides of fixed part are followed the inner wall face bending extension of battery accommodation area forms curved contact piece, contact piece both ends extension forms contact part, each contact part with the curved shell fragment of the reverse extension formation intussusception of one end that the contact piece links to each other, curved shell fragment's camber is great, curved shell fragment's end forms protruding contact, contact piece with curved shell fragment all is located in the battery accommodation area, when button cell along the upper and lower direction install in the battery accommodation area, contact piece the curved shell fragment contacts button cell's side surface, the negative terminal contacts button cell's bottom surface.

However, when the computer is in a working state, vibration is continuously generated by the high-frequency element on the computer main board where the battery holder is located and the fan of the heat dissipation system, the contact between the battery holder on the main board and the button battery accommodated in the battery accommodating area is also affected by the vibration to generate displacement, and the curved contact piece and the curved elastic sheet are required to be accommodated in the battery accommodating area, and the curvature of the curved elastic sheet is large, so that the gap between the curved elastic sheet and the inner wall surface of the battery accommodating area is large, when the button battery is accommodated in the battery accommodating area, a large gap also exists between the side surface of the button battery and the inner wall surface of the battery accommodating area, and under the influence of the high-frequency vibration, the positive terminal and the negative terminal are not enough to stably hold the button battery, so that the button battery is displaced due to the vibration amplitude of the button battery, and further the friction between the positive terminal and the negative terminal and the button battery is large, the negative terminal is not easy to be adhered to the contact with the button battery, and the contact pad is not easy to be worn down, and the contact between the positive terminal and the negative terminal and the button battery is not easy to be lost, and the button battery is frequently lost, and the contact between the positive terminal and the negative terminal and the button battery is not easy to be installed, and the contact pad is frequently lost, the button cell is not easy to install in place, the curvature of the bending elastic piece is large, the tail end of the bending elastic piece forms a protruding contact, the bending elastic piece is located above the contact piece, when the button cell is installed in the accommodating cavity along the up-down direction, the bottom surface of the button cell is easy to collide with the bending elastic piece to deform the bending elastic piece, and then the protruding contact of the bending elastic piece cannot firmly support the cell.

Therefore, there is a need to design a new battery holder to overcome the above-mentioned problems.

[ utility model ]

The utility model aims to provide a battery seat, which is characterized in that an insulating seat is provided with an accommodating cavity surrounded by a bottom wall and an enclosing wall, the enclosing wall is provided with a mounting groove and two accommodating grooves in a concave manner along the up-down direction, a positive terminal is provided with a main body part which is mounted in the mounting groove, two sides of the main body part are respectively extended to the side parts, the two side parts are mounted in the corresponding accommodating grooves, each side part is provided with a plurality of positive elastic pieces which are extended along the up-down direction in parallel, the positive elastic pieces are provided with positive contact parts which enter the accommodating cavity, the positive contact parts are arranged at the inner side of the enclosing wall along the circumferential direction of the insulating seat and are contacted with the side surface of a battery, and the negative terminal is provided with a plurality of negative elastic pieces which are contacted with the bottom surface of the battery, so that the contact points of the positive terminal and the negative terminal and the battery are increased are stably supported along the circumferential direction of the insulating seat, and the negative elastic pieces are fixedly supported against the battery, so that the vibration amplitude of the battery is reduced, and the positive terminal and the negative terminal are well contacted with the battery can always maintain the stable voltage transmission effect.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a battery holder for mounting a battery, comprising: the battery pack comprises an insulating seat, wherein the insulating seat is provided with a wall and a bottom wall connected with the bottom end of the wall along the circumferential direction of the insulating seat, the bottom wall and the wall are jointly surrounded to form an accommodating cavity with an opening at the upper end, a positive electrode terminal is installed on the insulating seat, the positive electrode terminal is provided with a main body part which is fixed on the wall, a bending part is formed by bending one end of the main body part, an elastic plate part which extends from the bending part along the up-down direction is arranged between the elastic plate part and the main body part, a yielding space is formed between the elastic plate part and the main body part, the elastic plate part enters the accommodating cavity, two side parts are respectively arranged on two sides of the elastic plate part, each side part is provided with a plurality of positive electrode spring pieces which extend along the up-down direction in parallel, each positive electrode spring piece is convexly provided with a positive electrode contact part which enters the accommodating cavity, a negative electrode terminal is fixed on the bottom wall of the wall along the bending part, the elastic plate part is arranged on the periphery of the insulating seat, and the elastic plate part is contacted with the surface of the battery pack from top to bottom, and the elastic plate part is contacted with the surface of the battery pack, and the elastic plate part is arranged on the surface of the positive electrode terminal.

Further, a mounting groove and two holding grooves are concavely formed in the upper and lower directions of the enclosing wall, the mounting groove and the two holding grooves are respectively communicated with the holding cavities, the main body part comprises a fixing plate and two turning plates connected with the two opposite sides of the fixing plate, the two turning plates are respectively connected with the two side parts, each turning plate deflects towards the holding cavities from the fixing plate and extends without exceeding the inner wall surface of the enclosing wall, a bump is convexly arranged from the plate surface of the fixing plate towards one side away from the holding cavities, a clamping part is convexly arranged from the inner side surface of the mounting groove towards the holding cavities and located above the bump, the bottom surface of the clamping part is used for blocking the top end of the bump, one side edge of each turning plate, which is far away from the side part, is convexly provided with at least one first protruding part, the first protruding part is in interference fit with the inner wall surface of the mounting groove, and the tail end of each turning plate is convexly provided with at least one second protruding part, and the second protruding part is in interference fit with the inner wall surface of the holding cavities.

Further, the elastic plate part is closer to the central axis of the accommodating cavity than the positive pole elastic sheet, a limiting piece is convexly arranged towards the accommodating cavity, the limiting piece is downwards inclined from top to bottom towards the accommodating cavity to form a first guide inclined plane, the upper end of each positive pole elastic sheet is provided with a second guide inclined plane, when the battery is downwards assembled, the first guide inclined plane and the second guide inclined plane sequentially guide the battery to be installed in the accommodating cavity to be elastically abutted with the positive pole contact part, and when the battery is assembled in place, the bottom of the limiting piece downwards stops the top surface of the battery.

Further, the top of the elastic plate portion is provided with an operation portion, the operation portion is inclined from top to bottom towards a direction approaching the accommodating cavity, the elastic plate portion is respectively bent and extended to form a limiting arm on two sides of the operation portion, two sides of the enclosing wall corresponding to the operation portion are respectively provided with a blocking portion in an upward protruding mode, and each blocking portion is located on the inner side of the limiting arm to limit the elastic plate portion to move towards the accommodating cavity.

Further, at least one upper limit part is convexly arranged at the top of the enclosing wall towards the accommodating cavity, at least one overpressure prevention part is convexly arranged at the bottom wall along the up-down direction, the bottom surface of the upper limit part stops the top surface of the battery, and the top surface of the overpressure prevention part supports the bottom surface of the battery.

Further, at least one pair of horizontal limiting parts are convexly arranged on the inner wall surface of the enclosing wall towards the accommodating cavity, the top end of each horizontal limiting part is lower than the top end of the upper limiting part, a groove is concavely arranged on two sides of the enclosing wall corresponding to each horizontal limiting part respectively, the two grooves are distributed on two opposite sides of the horizontal limiting parts, the grooves are communicated with the accommodating cavity and the external space, and the pair of horizontal limiting parts are elastically abutted to two opposite sides of the side surface of the battery.

Further, the negative terminal is provided with a plurality of negative pole shrapnel at the bottom of the accommodating cavity, the negative pole shrapnel comprises a plurality of first negative pole shrapnels, a plurality of second negative pole shrapnels and at least one third negative pole shrapnel which extend relatively, the length of the third negative pole shrapnel is larger than that of the first negative pole shrapnel and that of the second negative pole shrapnel, each first negative pole shrapnel is provided with a first contact part, each second negative pole shrapnel is provided with a second contact part, each third negative pole shrapnel is provided with a third contact part, each first contact part, each second contact part and each third contact part are arranged in a triangle structure and are all in butt joint with the bottom surface of the battery.

Further, a first anti-overvoltage groove and at least one second anti-overvoltage groove are concavely formed in the bottom wall, a plurality of first negative pole shell fragments and a plurality of second negative pole shell fragments are located right above the first anti-overvoltage groove, the third negative pole shell fragment is located right above the second anti-overvoltage groove, a long strip-shaped hole is penetrated and arranged in the third negative pole shell fragment, the long strip-shaped hole extends to the third contact portion along the extending direction of the third negative pole shell fragment, one end of the third negative pole shell fragment, far away from the third contact portion, is bent downwards to extend to form a bending portion, a boss is convexly arranged on the bottom surface of the second anti-overvoltage groove, the bending portion is located above the second anti-overvoltage groove, and when the battery is in elastic butt with the third contact portion, the top surface of the boss supports the bottom surface of the bending portion.

Further, the negative terminal both ends have a fixed part respectively and connect two a middle part of fixed part, the diapire runs through along the upper and lower direction and is equipped with two fixed slots and is used for two fixed part inserts, the relative both sides of middle part extend respectively a plurality of first negative pole shell fragment and a plurality of second negative pole shell fragment relatively, first negative pole shell fragment is upwards protruding establishes first contact portion, second negative pole shell fragment is upwards protruding establishes second contact portion, each the free end of first negative pole shell fragment with each the interval sets up between the free end of second negative pole shell fragment.

Further, the plurality of negative pole shell fragments include three first negative pole shell fragment and three second negative pole shell fragment and two third negative pole shell fragments, two third negative pole shell fragments are located three respectively first negative pole shell fragment and three the outermost side of second negative pole shell fragment, negative pole terminal has three first contact portion, three second contact portion and two third contact portion jointly with the battery forms eight point contacts, each lateral part of positive pole terminal extends has three positive pole shell fragments, the elastic plate portion orientation accommodate the chamber protruding a spacing piece, the bottom butt of spacing piece the top surface of battery, six positive pole contact portions of positive pole shell fragment with elastic plate portion and spacing piece jointly with the battery butt forms eight point contacts.

Compared with the prior art, the battery holder designed by the utility model has the following beneficial effects:

the side part is provided with a plurality of positive pole spring pieces extending along the up-down direction in parallel, the positive pole spring pieces are convexly provided with the positive pole contact part to enter the accommodating cavity, the main body part extends the elastic plate part to enter the accommodating cavity along the up-down direction, compared with the prior arc-shaped contact piece of the positive pole terminal which is completely positioned in the accommodating cavity, the positive pole spring pieces and the elastic plate part extend along the up-down direction can more effectively avoid the positive pole terminal to excessively occupy the accommodating cavity, the battery is not easy to collide with the positive pole terminal when being installed, the battery can be smoothly installed in the accommodating cavity, the distance between the side surface of the battery and the inner wall surface of the enclosing wall is reduced, the vibration amplitude of the battery is effectively reduced, the negative pole terminal is provided with a plurality of positions where the negative pole spring pieces are positioned at the bottom of the accommodating cavity to be abutted against the bottom surface of the battery, the positive electrode contact parts elastically abut against a plurality of positions of the side surface of the battery along the circumferential direction, so that the contact points of the positive electrode terminal and the negative electrode terminal with the battery are increased, and the contact positions of the negative electrode terminal and the side surface of the battery are increased, so that the positive electrode terminal and the negative electrode terminal are contacted with the battery more firmly, the vibration amplitude of the battery is further effectively reduced, the abrasion between the positive electrode terminal and the negative electrode terminal and the battery is reduced, metal scraps are prevented from adhering to the contact points between the positive electrode terminal and the negative electrode terminal and the battery, the contact impedance of the positive electrode terminal and the negative electrode terminal with the battery is stable, the battery always keeps stable voltage transmission, and the client terminal is further stable, the signal transmission is complete, so that the positive terminal, the negative elastic piece and the battery can be stably and elastically abutted to form good electrical connection.

[ description of the drawings ]

FIG. 1 is an exploded perspective view of the battery holder of the present utility model;

FIG. 2 is a perspective view of a battery holder according to the present utility model;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a schematic cross-sectional view of FIG. 3 taken along the direction A-A;

FIG. 5 is a top view of a battery mounted to a battery holder of the present utility model;

FIG. 6 is a schematic cross-sectional view of FIG. 5 taken along the direction B-B;

FIG. 7 is a schematic cross-sectional view of FIG. 5 taken along the direction C-C;

FIG. 8 is a schematic perspective view of an insulating base of the battery base of the present utility model;

FIG. 9 is a schematic perspective view of the positive terminal of the battery holder of the present utility model;

fig. 10 is a perspective view of a negative terminal of the battery holder of the present utility model.

Reference numerals of the specific embodiments illustrate:

[ detailed description ] of the utility model

For a better understanding of the utility model with objects, structures, features, and effects, the utility model will be described further with reference to the drawings and to the detailed description.

In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "width", "vertical", "opposite", "vertical", "inclined", and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or components referred to must be constructed and operated in a specific orientation to have a specific orientation, and thus should not be construed as limiting the present utility model.

As shown in fig. 1 to 10, the battery holder 100 of the present utility model is a horizontal battery holder for mounting a battery 200, the battery holder 100 includes an insulating holder 1, and a positive terminal 2 and a negative terminal 3 fixed to the insulating holder 1, the battery 200 is accommodated in the insulating holder 1, the negative terminal 3 is in contact with a bottom surface of the battery 200, and the positive terminal 2 is in contact with a top surface of the battery 200 and a side surface of the battery 200.

As shown in fig. 1, 3 and 8, the insulating base 1 has a wall 12 and a bottom wall 11 connected to the bottom end of the wall 12 along the circumferential direction, the bottom wall 11 and the wall 12 together enclose a housing cavity 13 with an upper end opening, at least one overpressure preventing portion 111 is protruding in the up-down direction from the bottom wall 11, in this embodiment, four overpressure preventing portions 111 may be provided, in other embodiments, a plurality of overpressure preventing portions may be provided, a first overpressure preventing groove 112 and at least one second overpressure preventing groove 113 are recessed downward from the bottom wall 11, a boss 1131 is protruding upward from the bottom surface of the second overpressure preventing groove 113, in this embodiment, two overpressure preventing grooves 113 may be provided, in other embodiments, a plurality of overpressure preventing portions 111 may be provided in the up-down direction from the bottom wall 11, two fixing grooves 114 may be provided through the bottom wall 11 along the up-down direction, a limiting groove 1141 is concavely provided on the inner side wall of each fixing groove 114 with respect to the other fixing groove 114, a plurality of guiding surfaces 1142 extending obliquely downward are provided on the upper portion of the fixing groove 114, two slots 1143 are provided on the side wall surface of each fixing groove 114 along the vertical direction, the two slots 1143 are respectively located on two sides of the limiting groove 1141, each slot 1143 is communicated with the corresponding fixing groove 114, so that the negative electrode terminal 3 is conveniently accommodated in the insulating base 1, and even if metal scraps are generated due to abrasion among the positive electrode terminal 2, the negative electrode terminal 3 and the battery 200, the guiding surfaces 1142 and the slots 1143 can facilitate better discharging of the metal scraps from the battery holder 100, a mounting groove 121 and two accommodating grooves 122 located on two sides of the mounting groove 121 are concavely provided along the vertical direction, the mounting groove 121 partially penetrates the bottom wall 11, the width of the installation groove 121 concaved along the central axis far away from the accommodating cavity 13 from the inner wall surface of the enclosing wall 12 is larger than the width concaved by the accommodating groove 122, the installation groove 121 and the two accommodating grooves 122 are both communicated with the accommodating cavity 13, a clamping portion 1211 is convexly arranged from the inner side surface of the installation groove 121 towards the accommodating cavity 13, a blocking portion 123 is convexly arranged at two sides of the enclosing wall 12 on the two sides of the installation groove 121, at least one upper limiting portion 124 is convexly arranged at the top of the enclosing wall 12 towards the accommodating cavity 13, in this embodiment, two upper limiting portions 124 can be a plurality of other numbers, the inner wall surface of the enclosing wall 12 is convexly arranged towards the accommodating cavity 13, at least one pair of horizontal limiting portions 125, the top end of each horizontal limiting portion 125 is lower than the top end of the upper limiting portion 124, a groove 126 is concavely arranged at two sides of each horizontal limiting portion 125 respectively, the grooves 126 are respectively communicated with the two sides of the corresponding horizontal limiting portions, in this embodiment, one pair of horizontal limiting portions 125 can be horizontally arranged in the other three other limiting portions 125, and the other limit portions 125 can be horizontally arranged in this embodiment, and the other limit portions 125 are horizontally opposite to each other limit portions 125.

As shown in fig. 1-7 and fig. 9, the positive terminal 2 is mounted on the insulating base 1, the positive terminal 2 has a main body 21 fixed on the mounting groove 121, a bending portion 23 bent from one end of the main body 21, and an elastic plate portion 24 extending from the bending portion 23 in the up-down direction, a space 25 is provided between the elastic plate portion 24 and the main body 21, two opposite sides of the main body 21 are respectively extended with a side portion 22, the main body 21 is farther from the central axis of the receiving cavity 13 than the side portion 22, two side portions 22 are respectively located at two sides of the elastic plate portion 24 and are correspondingly received in two receiving grooves 122, each side portion 22 is juxtaposed with a plurality of positive pole elastic pieces 222 extending in the up-down direction, in this embodiment, each side portion 22 of the positive terminal 2 is extended with three positive pole elastic pieces 222, in other embodiments, the number of the positive electrode spring pieces 222 extending from each side portion 22 may be other, each side portion 22 is provided with a through groove 221, at least three positive electrode spring pieces 222 arranged in parallel integrally extend upward from the lower edge of the through groove 221, the end of each positive electrode spring piece 222 is disconnected from the upper edge of the through groove 221, each positive electrode spring piece 222 is convexly provided with a positive electrode contact portion 2221 into the accommodating cavity 13, the positive electrode contact portions 2221 are arranged on the inner side of the enclosing wall 12 along the circumferential direction of the insulating base 1, the upper end of each positive electrode spring piece 222 is provided with a second guiding inclined surface 2222, that is, the second guiding inclined surface 2222 is located above the positive electrode contact portion 2221, the end of the side portion 22 is convexly provided with at least one second protruding portion 223, the second protruding portion 223 is in interference fit with the inner wall surface of the accommodating groove 122, in this embodiment, the second protruding portion 223 may be one, in other embodiments, there may be a plurality of second protruding portions, the main body portion 21 includes a fixing plate 211 and two turning plates 212 connected to opposite sides of the fixing plate 211, the two turning plates 212 are respectively connected to the two side portions 22, each turning plate 212 deflects from the fixing plate 211 toward the accommodating cavity 13 and does not extend beyond the inner wall surface of the enclosing wall 12, a protrusion 2111 is protruding from the plate surface of the fixing plate 211 toward a side away from the accommodating cavity 13, the holding portion 1211 is located above the protrusion 2111 from the inner side surface of the mounting groove 121 toward the accommodating cavity 13, the bottom surface of the holding portion 1211 stops the top end of the protrusion 2111, each of the turning plates 212 has at least one first protruding portion 2121 protruding from a side edge of the side portion 22, the first protruding portion 2121 is in interference fit with an inner wall surface of the mounting groove 121, in this embodiment, the first protruding portion 2121 may be one, in other embodiments, there may be a plurality of first protruding portions, the elastic plate portion 24 partially enters the accommodating cavity 13, the elastic plate portion 24 is closer to a central axis of the accommodating cavity 13 than the positive elastic plate 222, the elastic plate portion 24 protrudes toward the accommodating cavity 13 and has a limiting piece 241, the limiting piece 241 is inclined downward from top to bottom toward the accommodating cavity 13 to form a first guiding inclined surface 2411, the first guiding inclined surface 2411 and the second guiding inclined surface 2222 sequentially guide the battery 200 to be accommodated in the accommodating cavity, the elastic plate portion 24 has a first through hole 242 and a second through hole 243, the first through hole 242 and the second through hole 243 are both located below the limiting plate 241, the first through hole 242 is located above the second through hole 243, the second through hole 243 is located at a lower section of the elastic plate 24 and extends to the bending portion 23, the first through hole 242 and the second through hole 243 are at least partially located on the same vertical section, an operation portion 244 is provided on a top of the elastic plate 24, that is, the operation portion 244 is located above the limiting plate 241, the operation portion 244 is inclined from top to bottom in a direction approaching the accommodating cavity 13, two sides of the operation portion 244 of the elastic plate 24 are respectively bent to extend a limiting arm 245, and each of the stopping portions 123 is located inside the limiting arm 245 to limit the displacement of the elastic plate 24 toward the accommodating cavity 13.

As shown in fig. 1 to 2, fig. 6 to 7, and fig. 10, the negative electrode terminal 3 is fixed on the insulating base 1, the negative electrode terminal 3 has a plurality of negative electrode elastic pieces 311 and a plurality of second negative electrode elastic pieces 312 extending relatively, and at least one third negative electrode elastic piece 313, the free end of each first negative electrode elastic piece 311 and the free end of each second negative electrode elastic piece 312 are disposed at intervals, the plurality of first negative electrode elastic pieces 311 and the plurality of second negative electrode elastic pieces 312 are disposed above the positive side of the first negative electrode elastic piece 1, each first negative electrode elastic piece 311 has a first contact portion 3111, each second negative electrode elastic piece 312 has a second contact portion 3121, the plurality of negative electrodes includes at least a third negative electrode 311 and at least three second negative electrodes 312 and at least two third negative electrodes 313, the two third negative electrode elastic pieces 311 and the second negative electrode elastic pieces 312 are disposed at intervals between the free ends of each second negative electrode elastic piece 312, the plurality of first negative electrode elastic pieces 311 and the second negative electrode elastic pieces 312 are respectively, the first negative electrode elastic pieces 311 and the third negative electrode elastic pieces 313 are disposed at the third negative electrode elastic pieces 313 are longer than the first negative electrode elastic pieces 312, the third negative electrode elastic pieces 313 are disposed at the third negative electrode elastic pieces 313 and the third negative electrode elastic pieces 312, the second negative electrode elastic pieces are disposed at the third negative electrode elastic pieces 313 are longer than the third negative electrode elastic pieces and the third negative electrode elastic pieces 312, the third negative electrode elastic pieces are disposed at the third negative electrode elastic pieces and the third negative electrode elastic pieces 313 are disposed at the third negative electrode elastic pieces and the third negative electrode elastic pieces 312 are disposed at the third negative electrode elastic pieces, and the third negative electrode elastic pieces are disposed at the third negative contact positions, and third negative electrode elastic pieces 311 are respectively, and third negative electrode elastic pieces are respectively, and third negative elastic pieces are provided, and are respectively, and are third negative elastic pieces are respectively, and are third negative elastic pieces are as are. Each first contact portion 3111, each second contact portion 3121 and each third contact portion 3131 are arranged in a triangle structure, and the connection line among each first contact portion 3111, each second contact portion 3121 and each third contact portion 3131 forms a triangle, one end of the third negative pole elastic piece 313 away from the third contact portion 3131 is bent downwards to extend to form a bending portion 3132, the bending portion 3132 is located above the second overpressure preventing groove 113, the third contact portion 3131 is located above the second overpressure preventing groove 113, the third negative pole elastic piece 313 is provided with an elongated hole 3133 in a penetrating manner, the elongated hole 3133 extends to the third contact portion 3131 along the extending direction of the third negative pole 313, two ends of the negative pole terminal 3 are respectively provided with a fixing portion 32 and a middle portion 31 connecting the two fixing portions 32, the bottom wall 11 is provided with two fixing grooves 114 for inserting the two fixing portions 32 in the vertical direction, the overpressure preventing portion 111 is higher than the middle portion 31 in the vertical direction, two opposite sides of the middle portion 31 extend a plurality of first negative pole spring pieces 311 and a plurality of second negative pole spring pieces 312 respectively, the first negative pole spring pieces 311 are provided with the first contact portions 3111 in an upward protruding manner, the second negative pole spring pieces 312 are provided with the second contact portions 3121 in an upward protruding manner, the third negative pole spring pieces 313 are provided with the third contact portions 3131 in an upward protruding manner, that is, the first contact portions 3111, the second contact portions 3121 and the third contact portions 3131 are protruded upward with respect to the middle portion 31, two side plate edges of each fixing portion 32 are provided with a protruding thorn 321 in a protruding manner, the plate surfaces of the two fixing portions 32 are provided with a blocking piece 322 in a corresponding interference fit with the corresponding side surfaces of the fixing grooves 114, the top wall of the limit slot 1141 stops the top end of the stop piece 322.

As shown in fig. 5 to 7, when the battery 200 is mounted in the housing cavity 13 from top to bottom, the operation portion 244 guides the battery 200 to displace downward, then the first guiding inclined surface 2411 guides the battery 200 to displace downward, at this time, the elastic plate portion 24 is partially abutted against the side surface of the battery 200 and displaced toward the main body portion 21, the second guiding inclined surface 2222 guides the battery 200 to be mounted in the housing cavity 13 so as to be elastically abutted against the positive electrode contact portion 2221, when the battery 200 is assembled in place, the bottom of the limit plate 241 stops the top surface of the battery 200 downward, the elastic plate portion 24 is located at the upper edge of the first through hole 242 and abuts against the side surface of the battery 200, the positive electrode terminal 2 has six positive electrode contact portions 2221 and side surfaces of the battery 200, the plate surface of the elastic plate portion 24 abuts against the side surface of the battery 200 to form a seventh point contact, the bottom of the limit plate 241 and the battery 200 also has a third point contact with the top surface of the battery 200, and the third contact surface 313 and the third contact surface of the battery 200 have a stable vibration amplitude, and the third contact amplitude of the positive electrode terminal 313 and the battery 200 is further reduced, the vibration amplitude of the third contact amplitude of the positive electrode terminal 2 and the third contact terminal 2 and the positive electrode terminal 200 is formed with the third contact terminal 313 and the third contact amplitude of the battery 200 is stable, eight-point contacts are formed between the negative electrode terminal 2 and the battery 200, so that the distribution of the abutting force between the positive electrode terminal 2, the negative electrode terminal 3 and the battery 200 is more balanced, and therefore the positive electrode terminal 2 and the negative electrode terminal 3 are more stably abutted against the battery 200, and when the battery 200 is elastically abutted against the third contact portion 3131, the top surface of the boss 1131 supports the bottom surface of the bending portion 3132. Each of the first contact portions 3111, each of the second contact portions 3121, and each of the third contact portions 3131 are arranged in a triangular structure and abut against a bottom surface of the battery 200, that is, a line connecting three of each of the first contact portions 3111, each of the second contact portions 3121, and each of the third contact portions 3131 forms a triangle, so that each of the first contact portions 3111, each of the second contact portions 3121, and each of the third contact portions 3131 is in contact with the battery 200 stably, when the battery 200 is assembled in place, a bottom of the limiting piece 241 downwardly blocks a top surface of the battery 200, a bottom surface of the upper limiting piece 124 jointly limits upward displacement of the battery 200, a top surface of the anti-overpressure portion 111 supports the bottom surface of the battery 200, limits excessive downward displacement of the battery 200, thereby reducing an amplitude of the battery 200 in an upper-lower direction, a plurality of the contact portions of the battery 200 horizontally limit the amplitude of vibration in the battery 200, and horizontally limits the vibration amplitude of the battery 200 in a horizontal direction. When the battery 200 needs to be taken out, the operation portion 244 may be operated to displace toward the main body portion 21, so as to drive the elastic plate portion 24 to displace toward the main body portion 21, so that the yielding space 25 is reduced, the elastic plate portion 24 is finally completely accommodated in the mounting groove 121, the limiting piece 241 is separated from the top surface of the battery 200, and the operator can take out the battery 200.

In summary, the battery holder 100 of the present utility model has the following advantages:

1. the side portion 22 is provided with a plurality of positive pole spring pieces 222 extending along the up-down direction in parallel, the positive pole spring pieces 222 are provided with the positive pole contact portion 2221 protruding into the accommodating cavity 13, the main body portion 21 extends along the up-down direction the elastic plate portion 24 partially into the accommodating cavity 13, compared with the case that the arc-shaped contact piece of the existing positive pole terminal 2 is completely positioned in the accommodating cavity 13, the positive pole spring pieces 222 and the elastic plate portion 24 extend along the up-down direction to more effectively avoid the positive pole terminal 2 from occupying the accommodating cavity 13 excessively, the battery 200 is not easy to collide with the positive pole terminal 2 during installation, so that the battery 200 can be smoothly installed into the accommodating cavity 13, the distance between the side surface of the battery 200 and the inner wall surface of the enclosing wall 12 is reduced, the vibration amplitude of the battery 200 is effectively reduced, the negative pole terminal 3 has a plurality of positions of the negative pole spring pieces positioned at the bottom of the accommodating cavity 13 for abutting against the bottom surface of the battery 200, the plurality of the battery contact portions 2 are more effectively prevented from being occupied by the positive pole terminal 2, the contact point 2 is prevented from being more easily collided with the positive pole terminal 2 during installation of the battery 200, the contact point 2 is prevented from being more greatly increased in the circumferential direction from being more contact with the negative pole terminal 2, the contact point 2 is prevented from being more effectively increased in the contact point 2, the contact point between the side surface of the negative pole terminal 200 and the battery 200 is more than the battery 200 is prevented from being more effectively prevented from being more easily collided with the contact point 2, and the contact point 2 is more than the contact point 200 is more contact point between the positive pole terminal 200 is prevented from the contact point 2 is more easily, the contact impedance between the negative terminal 3 and the battery 200 is stable, so that the battery 200 always maintains stable voltage transmission, further the client contact is stable, the signal transmission is complete, and the positive terminal 2, the negative spring plate and the battery 200 can be stably elastically abutted to form good electrical connection.

2. Each side portion 22 is provided with a through groove 221, three positive pole elastic pieces 222 integrally extend upwards from the lower edge of the through groove 221, and the tail end of each positive pole elastic piece 222 is disconnected from the upper edge of the through groove 221, so that the positive pole elastic pieces 222 have a better elastic effect, and are in better abutting connection with the side surface of the battery 200, and meanwhile, each positive pole elastic piece 222 extends along the up-down direction and protrudes towards the accommodating cavity 13 to form the positive pole contact portion 2221, so that the positive pole terminal 2 can be prevented from occupying the accommodating cavity 13 too much, and the positive pole terminal 2 and the battery 200 can be ensured to keep stable elastic abutting connection.

3. The main body 21 comprises a fixing plate 211 and two turning plates 212 connected with two opposite sides of the fixing plate 211, the bottom surface of the mounting groove 121 blocks the bottom surface of the turning plate 212 to limit the downward displacement of the main body 21, each turning plate 212 deflects from the fixing plate 211 towards the accommodating cavity 13 and does not extend beyond the inner wall surface of the enclosing wall 12, the turning plate 212 is prevented from occupying the space of the accommodating cavity 13, the protruding block 2111 is protruded from the plate surface of the fixing plate 211 towards one side far away from the accommodating cavity 13, the clamping part 1211 is protruded from the inner side surface of the mounting groove 121 towards the accommodating cavity 13 and is positioned above the protruding block 2111, the bottom surface of the holding portion 1211 blocks the top end of the protrusion 2111 to limit the upward displacement of the main body portion 21, a side edge of each turning plate 212 away from the side portion 22 is convexly provided with the first protruding portion 2121, and the first protruding portion 2121 is in interference fit with the inner wall surface of the mounting groove 121 to further limit the displacement of the main body portion 21, so that the positive terminal 2 is stably mounted on the insulating seat 1, the influence of high-frequency vibration on the positive terminal 2 is reduced, the position of the side portion 22 can be effectively adjusted by the arrangement of the turning plate 212, more positive spring plates 222 are conveniently arranged on the side portion 22, and better electrical connection with the battery 200 is achieved.

4. The bending portion 23 is formed by bending one end of the main body portion 21, and the elastic plate portion 24 extends from the bending portion 23 in the vertical direction, and the width of the installation groove 121 concaved from the inner wall surface of the enclosing wall 12 along the central axis away from the accommodating cavity 13 is greater than the width concaved by the accommodating groove 122, so that the elastic plate portion 24 is better accommodated in the installation groove 121, the elastic plate portion 24 is prevented from entering the accommodating cavity 13 too much to affect the smooth installation of the battery 200, and the elastic plate portion 24 is not easy to be damaged and deformed due to the installation of the battery 200.

5. The elastic plate portion 24 is closer to the central axis of the accommodating cavity 13 than the positive pole elastic pieces 222, so that the battery 200 is firstly contacted with the elastic plate portion 24 when being mounted, the elastic plate portion 24 protrudes towards the accommodating cavity 13, the limiting piece 241 is firstly guided by the elastic plate portion 24 to downwards incline towards the accommodating cavity 13 to form the first guiding inclined surface 2411, the upper end of each positive pole elastic piece 222 is provided with the second guiding inclined surface 2222, when the battery 200 is downwards assembled, the first guiding inclined surface 2411 and the second guiding inclined surface 2222 sequentially guide the battery 200 to be mounted in the accommodating cavity 13 to elastically abut against the positive pole contact portion 2221, so that the battery 200 can be smoothly mounted in the accommodating cavity 13 from top to bottom, the elastic plate portion 24 firstly guides the battery 200 to protect the positive pole elastic pieces 222 from being damaged by collision of the battery 200, when the battery 200 is assembled to the battery 200, the upper end of each positive pole elastic piece is provided with the second guiding inclined surface 2222, the contact surface of the battery 200 is well below the battery 200, and the contact surface of the battery 200 is stably contacted with the top surface 200, and the contact amplitude between the top surface 200 and the battery 200 is reduced, and the contact amplitude is stably reduced.

6. The elastic plate portion 24 is provided with the first through hole 242 and the second through hole 243, the first through hole 242 is located above the second through hole 243, a portion of the elastic plate portion 24 located at the upper edge of the first through hole 242 is abutted against the side surface of the battery 200, the second through hole 243 is located at the lower section of the elastic plate portion 24 and extends to the bending portion 23, and at least a portion of the first through hole 242 and the second through hole 243 are located on the same vertical section, so that the rebound effect of the elastic plate portion 24 is better and elastic fatigue is not easy, the elastic plate portion 24 better contacts the battery 200, and even if metal scraps are generated by abrasion between the contact points of the elastic plate portion and the battery 200, the metal scraps discharged from the first through hole 242 fall down, the metal scraps can be further discharged from the second through hole 243, thereby avoiding adhesion of the metal scraps between the elastic plate portion 24 and the battery 200, and further making the electrical connection between the battery terminal 2 and the battery 200 better.

7. The top of the elastic plate 24 has the operation portion 244, the operation portion 244 is inclined from top to bottom in a direction approaching the housing cavity 13, when the battery 200 is mounted from top to bottom, the operation portion 244 can guide the battery 200 to be housed in the housing cavity 13 smoothly, when the battery 200 needs to be taken out, the operation portion 244 is pressed to move toward the main body 21, the elastic plate 24 is displaced toward the main body 21 and housed in the mounting groove 121, so that the battery 200 can be taken out smoothly without damaging the positive terminal 2, the elastic plate 24 is folded and extended at two sides of the operation portion 244 to form a limiting arm 245, the enclosing wall 12 is provided with one blocking portion 123 protruding upward at two sides of the mounting groove 121, and each blocking portion 123 is located at the inner side of the limiting arm 245 to limit the displacement of the elastic plate 24 toward the housing cavity 13, so that the battery 200 can be mounted smoothly without damaging the housing cavity 24, and the battery 200 is prevented from being deformed elastically.

8. The top of the enclosing wall 12 protrudes towards the accommodating cavity 13, the bottom wall 11 protrudes in the vertical direction with the overpressure preventing portion 111, the bottom surface of the upper limiting portion 124 blocks the top surface of the battery 200 to limit the upward displacement of the battery 200, the top surface of the overpressure preventing portion 111 supports the bottom surface of the battery 200 to limit the downward displacement of the battery 200, the overpressure preventing portion 111 can protect the battery 200 from being excessively displaced downwards to damage the negative electrode terminal 3, the upper limiting portion 124 and the overpressure preventing portion 111 limit the upward and downward displacement of the battery 200 respectively so that the battery 200 is stably held in the accommodating cavity 13 to reduce the vibration amplitude of the battery 200 in the vertical direction, thereby reducing the abrasion between the battery 200 and the negative electrode spring, and stabilizing the contact resistance between the positive electrode terminal 2, the negative electrode terminal 3 and the battery 200, thereby enabling the battery 200 to always maintain stable voltage transmission.

9. The inner wall surface of the enclosing wall 12 protrudes towards the accommodating cavity 13 to form the horizontal limiting portion 125, the top end of the horizontal limiting portion 125 is lower than the top end of the upper limiting portion 124, two grooves 126 are distributed on two opposite sides of the horizontal limiting portion 125, the grooves 126 are communicated with the accommodating cavity 13 and the external space, so that the horizontal limiting portion 125 can elastically displace, the horizontal limiting portions 125 elastically abut against the side surface of the battery 200 to limit the displacement of the battery 200, the battery 200 is stably held in the accommodating cavity 13, the displacement space of the battery 200 is reduced, the vibration amplitude of the battery 200 along the horizontal direction is further reduced, the abrasion between the positive electrode terminal 2, the negative electrode terminal 3 and the battery 200 is reduced, the contact resistance between the positive electrode terminal 2, the negative electrode terminal 3 and the battery 200 is stable, the battery 200 is always kept stable, and the battery 200 and the battery 2 and the negative electrode terminal 3 form good electrical connection.

10. The negative terminal 3 is provided with a plurality of first negative pole elastic pieces 311 and a plurality of second negative pole elastic pieces 312 which extend oppositely, and the negative terminal 3 extends with two third negative pole elastic pieces 313, the length of the third negative pole elastic pieces 313 is larger than the length of the first negative pole elastic pieces 311 and the length of the second negative pole elastic pieces 312, each first negative pole elastic piece 311 is provided with a first contact part 3111, each second negative pole elastic piece 312 is provided with a second contact part 3121, each third negative pole elastic piece 313 is provided with a third contact part 3131, each first contact part 3111, each second contact part 3121 and each third contact part 3131 are arranged in a triangular structure and are in contact with the bottom surface of the battery 200, the contact positions of the first contact parts 3111, the second contact parts 3121 and the third contact parts 3131 to the battery 200 are increased, the contact positions of the third contact parts 3131 and the battery 200 form three sections, the contact positions of the contact parts are firmly contacted with the bottom surface of the battery 200, the contact positions of the third contact parts 3111 and the bottom surface of the battery 200 are prevented from being in contact with each other, and the contact positions of the negative pole terminal 200 are prevented from being in a stable contact, and the contact between the bottom surface of the battery 200 is prevented from being in a stable contact with the bottom surface of the battery 200, and the contact between the negative pole terminal is prevented from being in a stable contact with the bottom surface of the contact surface of the negative terminal 200.

11. The bottom wall 11 is concavely provided with a first anti-overpressure groove 112 and two second anti-overpressure grooves 113, a plurality of first negative electrode elastic pieces 311 and a plurality of second negative electrode elastic pieces 312 are all located right above the first anti-overpressure groove 112, a third negative electrode elastic piece 313 is located right above the second anti-overpressure groove 113, the first anti-overpressure groove 112 is used for yielding the first negative electrode elastic pieces 311 and the second negative electrode elastic pieces 312, the second anti-overpressure groove 113 is used for yielding the third negative electrode elastic pieces 313, and the first negative electrode elastic pieces 311, the second negative electrode elastic pieces 312 and the third negative electrode elastic pieces 313 are guaranteed to be in full elastic butt connection with the battery 200.

12. The third negative electrode elastic piece 313 is far away from one end of the third contact portion 3131 and is bent downwards to form the bending portion 3132, the bottom surface of the second anti-overvoltage groove 113 is provided with the boss 1131 in an protruding mode, the bending portion 3132 is located on the second anti-overvoltage groove 113, the third contact portion 3131 is located above the second anti-overvoltage groove 113, when the battery 200 is elastically abutted to the third contact portion 3131, the top surface of the boss 1131 supports the bottom surface of the bending portion 3132, the third negative electrode elastic piece 313 is supported by a second section of force arm, elastic fatigue of the third negative electrode elastic piece 313 is not easy, the third contact portion 3131 can be better contacted with the bottom surface of the battery 200, and the negative electrode terminal 3 and the battery 200 keep good electrical connection.

13. The third negative electrode elastic sheet 313 is provided with the elongated hole 3133 in a penetrating manner, the elongated hole 3133 extends to the third contact portion 3131 along the extending direction of the third negative electrode elastic sheet 313, so that the elastic effect of the third negative electrode elastic sheet 313 is better and the third negative electrode elastic sheet is not easy to elastically fatigue, the third contact portion 3131 is better contacted with the bottom surface of the battery 200, the abrasion between the third contact portion 3131 and the bottom surface of the battery 200 is reduced, and even if metal scraps generated by the abrasion between the third contact portion 3131 and the bottom surface of the battery 200 can be discharged through the elongated hole 3133, the metal scraps are prevented from adhering to the contact point between the third contact portion 3131 and the bottom surface of the battery 200, so that the contact resistance between the negative electrode terminal 3 and the battery 200 is stable to form good electrical connection.

14. The two ends of the negative terminal 3 are respectively provided with a fixing part 32 and an intermediate part 31 connected with the two fixing parts 32, the bottom wall 11 is provided with two fixing grooves 114 in a penetrating way along the up-down direction for inserting the two fixing parts 32, so that the negative terminal 3 is stably installed on the insulating base 1 and is not easy to displace due to vibration, meanwhile, the two ends of the negative terminal 3 are respectively provided with the fixing parts 32, the negative terminal 3 can be prevented from tilting at one end, the two opposite sides of the intermediate part 31 are respectively extended with a plurality of first negative pole elastic pieces 311 and a plurality of second negative pole elastic pieces 312 relatively, the intermediate part 31 is extended with two third negative pole elastic pieces 313 which are respectively positioned at the outermost sides of the first negative pole elastic pieces 311 and the second negative pole elastic pieces 312, the free end of each first negative pole elastic piece 311 and the free end of each second negative pole elastic piece 312 are arranged at intervals, and the first negative pole elastic pieces 311 and the second negative pole elastic pieces 312 are prevented from being staggered along the opposite extending directions, so that the electric resistance of the battery 200 is always kept stable under the condition that the production cost is reduced.

15. The two ends of the negative terminal 3 are respectively provided with one fixing portion 32, two side plate edges of each fixing portion 32 are respectively provided with a protruding thorn 321, the plate surfaces of the two fixing portions 32 are respectively provided with a blocking piece 322 in a protruding manner, the inner side wall of each fixing groove 114 is respectively provided with a limiting groove 1141 in a recessed manner relative to the other fixing groove 114, each protruding thorn 321 is in interference fit with the corresponding side surface of the fixing groove 114, the top wall of the limiting groove 1141 is used for blocking the top end of the blocking piece 322 so as to limit the displacement of the negative terminal 3, so that the negative terminal 3 is further stably held in the accommodating cavity 13, the influence of vibration on the negative terminal 3 is reduced, and the plate surfaces of the two fixing portions 32 are respectively provided with the blocking pieces 322 in a protruding manner so as to avoid the structure of the insulating base 1 is more stable and is not easy to damage.

The above detailed description is merely illustrative of the preferred embodiments of the utility model and is not intended to limit the scope of the utility model, so that all equivalent technical changes that can be made by the present specification and illustrations are included in the scope of the utility model.

Claims (10)

1. A battery holder for mounting a battery, comprising:

An insulating seat, the insulating seat is provided with a wall and a bottom wall connected with the bottom end of the wall along the circumferential direction, the bottom wall and the wall jointly enclose a containing cavity with an opening at the upper end,

the positive terminal is arranged on the insulating seat, the positive terminal is provided with a main body part which is fixed on the enclosing wall, a bending part is formed by bending one end of the main body part, an elastic plate part extends from the bending part along the up-down direction, a yielding space is arranged between the elastic plate part and the main body part, the elastic plate part partially enters the accommodating cavity, two opposite sides of the main body part are respectively extended with a side part, two side parts are respectively positioned at two sides of the elastic plate part, each side part is provided with a plurality of positive pole elastic pieces extending along the up-down direction in parallel, each positive pole elastic piece is convexly provided with a positive pole contact part which enters the accommodating cavity, and a plurality of positive pole contact parts are arranged at the inner side of the enclosing wall along the circumferential direction of the insulating seat;

a negative terminal fixed to the bottom wall;

when the battery is mounted in the accommodating cavity from top to bottom, the elastic plate part is partially abutted against the side surface of the battery and is displaced towards the main body part, a plurality of positive electrode contact parts are elastically contacted with the side surface of the battery, and the negative electrode terminal is elastically contacted with the bottom surface of the battery.

2. The battery holder of claim 1, wherein: the enclosure is concave along upper and lower direction establishes a mounting groove and is located two holding tanks of mounting groove both sides, mounting groove and two the holding tank all with the holding chamber is linked together, main part includes a fixed plate and connects two turning boards of the opposite both sides of fixed plate, two turning boards respectively with two the lateral part is connected, and each turning board is from the fixed plate orientation holding chamber deflection extension just does not surpass the internal face of enclosure, is from the face orientation of fixed plate is kept away from one side of holding chamber protruding a lug that establishes, from the medial surface orientation of mounting groove holding chamber protruding a clamping part is located the top of lug, the bottom surface of clamping part keeps off the top of lug, each turning board is kept away from a lateral part protruding at least one first protruding portion of establishing, first protruding portion with the internal face cooperation of mounting groove, the terminal protruding portion of lateral part is protruding at least one second protruding portion of establishing, interference fit with the internal face of holding groove.

3. The battery holder of claim 1, wherein: the elastic plate part is closer to the central axis of the accommodating cavity than the positive pole elastic sheet, a limiting piece is convexly arranged towards the accommodating cavity, the limiting piece is downwards inclined towards the accommodating cavity from top to bottom to form a first guide inclined plane, the upper end of each positive pole elastic sheet is provided with a second guide inclined plane, when the battery is downwards assembled, the first guide inclined plane and the second guide inclined plane sequentially guide the battery to be installed in the accommodating cavity to be elastically abutted with the positive pole contact part, and when the battery is assembled in place, the bottom of the limiting piece downwards stops the top surface of the battery.

4. The battery holder of claim 1, wherein: the top of the elastic plate part is provided with an operation part, the operation part inclines from top to bottom towards the direction close to the accommodating cavity, the elastic plate part is respectively bent and extended to form a limiting arm at two sides of the operation part, the two sides of the enclosing wall corresponding to the operation part are respectively provided with a blocking part in an upward protruding mode, and each blocking part is located at the inner side of the limiting arm to limit the displacement of the elastic plate part towards the accommodating cavity.

5. The battery holder of claim 1, wherein: at least one upper limit part is arranged on the top of the enclosing wall in a protruding mode towards the accommodating cavity, at least one overpressure prevention part is arranged on the bottom wall in a protruding mode along the up-down direction, the top surface of the battery is blocked by the bottom surface of the upper limit part, and the bottom surface of the battery is supported by the top surface of the overpressure prevention part.

6. The battery holder of claim 5, wherein: the inner wall surface of enclosure is towards accept the chamber protruding establishes at least a pair of level limit part, every the top of level limit part is less than the top of upper limit part, the enclosure corresponds each the both sides of level limit part are concavely respectively established a recess, two the recess distributes in the relative both sides of level limit part, the recess intercommunication accept chamber and external space, a pair of level limit part elasticity butt the relative both sides of the side surface of battery.

7. The battery holder of claim 1, wherein: the negative terminal is provided with a plurality of negative pole shrapnel which are positioned at the bottom of the accommodating cavity, the negative pole shrapnels comprise a plurality of first negative pole shrapnels, a plurality of second negative pole shrapnels and at least one third negative pole shrapnel which extend relatively, the length of the third negative pole shrapnel is larger than that of the first negative pole shrapnel and that of the second negative pole shrapnel, each first negative pole shrapnel is provided with a first contact part, each second negative pole shrapnel is provided with a second contact part, each third negative pole shrapnel is provided with a third contact part, and each first contact part, each second contact part and each third contact part are arranged in a triangle structure and are all in butt joint with the bottom surface of the battery.

8. The battery holder of claim 7, wherein: the bottom wall is downwards concavely provided with a first anti-overvoltage groove and at least one second anti-overvoltage groove, a plurality of first negative pole shrapnel and a plurality of second negative pole shrapnel are all located right above the first anti-overvoltage groove, the third negative pole shrapnel is located right above the second anti-overvoltage groove, the third negative pole shrapnel runs through and is provided with a rectangular hole, the rectangular hole is followed the extending direction of the third negative pole shrapnel extends to the third contact part, the third negative pole shrapnel is kept away from one end of the third contact part is downwards buckled and is extended to form a bending part, the bottom surface of the second anti-overvoltage groove upwards is convexly provided with a boss, the bending part is located the second anti-overvoltage groove, the third contact part is located the top of the second anti-overvoltage groove, when the battery with the elastic butt of third contact part, the top surface of boss supports the bottom surface of bending part.

9. The battery holder of claim 7, wherein: the negative terminal is characterized in that two ends of the negative terminal are respectively provided with a fixing part and a middle part connected with the two fixing parts, the bottom wall is provided with two fixing grooves in a penetrating mode along the up-down direction for two fixing parts to be inserted, two opposite sides of the middle part are respectively extended relatively to a plurality of first negative pole elastic pieces and a plurality of second negative pole elastic pieces, the first negative pole elastic pieces are upwards protruded to form first contact parts, the second negative pole elastic pieces are upwards protruded to form second contact parts, and the free ends of the first negative pole elastic pieces and the free ends of the second negative pole elastic pieces are arranged at intervals.

10. The battery holder of claim 7, wherein: the plurality of negative pole shell fragments include three first negative pole shell fragment and three second negative pole shell fragment and two third negative pole shell fragments, two third negative pole shell fragments are located three respectively first negative pole shell fragment and three the outermost side of second negative pole shell fragment, negative pole terminal has three first contact portion, three second contact portion and two third contact portion jointly with the battery forms eight-point contact, each lateral part of positive pole terminal extends has three positive pole shell fragment, the elastic plate portion orientation accommodate the chamber protruding a spacing piece, the bottom butt of spacing piece the top surface of battery, six positive pole shell fragment six positive pole contact portions with elastic plate portion and spacing piece jointly with the battery butt forms eight-point contact.

Images