CN219144411U - Battery box for ammeter and positive electrode conducting strip with stable contact thereof - Google Patents

Abstract

The utility model discloses a battery box for an ammeter and a positive electrode conducting plate with stable contact, which comprises a battery box body, a negative electrode conducting plate main body and a positive electrode conducting plate main body, wherein the positive electrode conducting plate main body is sequentially provided with a positive electrode pin part, a positive electrode fixing part and a positive electrode abutting part, the positive electrode abutting part is used for being pressed on a positive electrode post of the battery, the positive electrode conducting plate main body further comprises a contact part, the contact part is matched with the lower surface of the positive electrode abutting part to form a contact cavity matched with the positive electrode post of the battery, the contact cavity is of an open structure with an opening at the front end, and the contact part forms surrounding multi-point contact fit with the side wall of the positive electrode post of the battery along with the positive electrode post of the battery being clamped into the contact cavity. According to the utility model, the contact part is arranged on the positive electrode abutting part, and the contact part is in multi-point contact fit with the surrounding shape of the positive electrode post of the battery, so that the stability of electric connection between the battery and the positive electrode conducting strip main body is ensured, the problem of poor contact of the positive electrode of the battery is avoided, and the safe use of the device is ensured.

Description

Battery box for ammeter and positive electrode conducting strip with stable contact thereof

Technical Field

The utility model relates to the field of battery box operation, in particular to a battery box for an ammeter and a positive electrode conducting plate with stable contact.

Background

In the prior art, since the battery has a battery positive electrode and a battery negative electrode, the correct installation should be that the battery positive electrode is connected to the positive end of the battery compartment and the battery negative electrode is connected to the negative end of the battery compartment. The mode that the positive electrode conducting strip is directly lapped with the positive electrode of the battery adopted in the prior art, the contact between the positive electrode conducting strip and the battery is insufficient due to vibration, intermittent poor contact phenomenon easily occurs when vibration test is performed, and under-voltage condition is caused, so that the battery box for the ammeter and the positive electrode conducting strip thereof for providing the battery power supply stability are provided, and the important technical problem to be solved by the technicians in the field is provided.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a battery box for an ammeter and a positive electrode conducting plate with stable contact, so as to avoid the problem of poor contact of a battery positive electrode in the prior art.

In a first aspect, the utility model provides a positive electrode conductive sheet with stable contact, which comprises a positive electrode conductive sheet main body, wherein the positive electrode conductive sheet comprises a positive electrode abutting part, the positive electrode abutting part is used for being pressed on a positive electrode post of a battery, the positive electrode conductive sheet main body further comprises a contact part, the contact part is matched with the lower surface of the positive electrode abutting part to form a contact cavity matched with the positive electrode post of the battery, the contact cavity is of an open structure with an open front end, and along with the positive electrode post of the battery being clamped into the contact cavity, the contact part and the side wall of the positive electrode post of the battery form surrounding multi-point contact matching.

After the battery is clamped into the contact cavity from the opening direction, the positive electrode abutting part of the positive electrode conducting plate is in contact connection with the positive electrode column of the battery through the contact part, and the contact part is propped open to form surrounding multi-point contact fit with the peripheral side wall of the positive electrode column of the battery under the action of elastic force.

Further, an elastic abutting piece formed by stamping the inside of the contact cavity is arranged on the positive electrode abutting part, and the abutting end of the elastic abutting piece is located at one side of the opening of the contact cavity.

By adopting the arrangement, the elastic potential energy and the elastic restoring force generated by the elastic conflict piece can be increased along with gradual clamping of the battery, the elastic conflict piece and the positive pole of the battery are reasonably designed in a matching mode, and the contact part is matched with the positive pole of the battery to realize double full-scale contact connection of the positive pole of the battery, so that the power supply connection of the battery is more stable and reliable.

Further, the contact portion is a convex body formed by punching from the upper side to the lower side of the positive electrode abutting portion by a punch, and a portion of the convex body corresponding to inner walls of both sides of the contact cavity is inclined inwards from front to back.

By adopting the arrangement, the forming of the contact part is simple, the inside of the convex body formed by punching is of a cavity structure, and the inner walls of the two sides of the contact cavity can gradually contact with the side wall of the positive pole of the battery along with the clamping of the positive pole of the battery until the battery is clamped in place, and the positive pole of the battery positioned in the contact cavity can be in better pressing contact with the inner side wall of the contact part, so that the aim of better preventing the occurrence of intermittent contact failure can be achieved.

Further, the positive electrode abutting part is provided with a hollowed-out part, the contact part is an arc sheet body, the arc sheet body is formed by bending the inner periphery of the hollowed-out part in the same direction, and the arc sheet body is inclined inwards from front to back corresponding to the inner walls of the two sides of the contact cavity.

By adopting the arrangement, the forming cost of the positive electrode abutting part is reduced through the formation of the hollowed-out part, the contact part is an arc-shaped sheet body formed by bending the inner periphery of the hollowed-out part in the same direction, the inner walls of the two sides of the contact cavity formed by matching the arc-shaped sheet body with the positive electrode abutting part can be gradually contacted with the side wall of the positive electrode post of the battery along with the clamping of the positive electrode post of the battery until the battery is clamped in place, and the positive electrode post of the battery positioned in the contact cavity can be kept in better pressing contact with the inner side wall of the contact part, so that the aim of better preventing the intermittent poor contact phenomenon can be achieved.

Further, the positive electrode abutting part is provided with a hollowed-out part, the contact part is formed by bending a first bending sheet body, a second bending sheet body and a third bending sheet body which are arranged on the inner periphery of the hollowed-out part at intervals in the same direction, and the first bending sheet body and the third bending sheet body are inclined inwards from front to back.

By adopting the arrangement, the contact part is formed by bending the first bending sheet body, the second bending sheet body and the third bending sheet body at the same direction on the inner periphery of the hollowed-out part at intervals, the bending stress of the contact part during bending is reduced by the design of the mode, the bending process is easier to carry out, deformation is not easy to recover after bending, and the structure is reasonable.

The utility model also provides a battery box for the ammeter, which comprises a battery box body, a negative electrode conducting strip main body connected with a negative electrode output pin and the positive electrode conducting strip main body, wherein the battery box body comprises a lower cover, an upper cover and an auxiliary cover, a battery bin for placing a battery and an inserting cavity for placing the negative electrode output pin and the positive electrode output pin are arranged on the lower cover, the negative electrode conducting strip main body and the positive electrode conducting strip main body are clamped at two ends of the battery bin, the upper cover and the auxiliary cover are respectively covered on the battery bin and the inserting cavity and are detachably connected with the lower cover, and damping devices are arranged on the inner walls of the lower cover and the upper cover corresponding to the battery bin.

By adopting the arrangement, the battery compartment and the plug-in cavity are integrally arranged on the lower cover, the power supply battery and the plug-in seat are effectively fixed through the cooperation of the upper cover and the auxiliary cover, the matching positions of the negative electrode output pin and the positive electrode output pin and the plug-in seat are not exposed to the outside, the power supply is safer, the lower cover, the upper cover and the auxiliary cover are arranged in a detachable connection mode, the replacement and maintenance are convenient, the structure is reasonable, the vibration reduction device is arranged, the tight cooperation of the battery compartment and the battery is ensured, and the phenomenon that the battery arranged in the battery compartment and the positive electrode conductive sheet main body and the negative electrode conductive sheet main body are in poor contact due to vibration is avoided, so that the power supply is more stable.

Further, the negative electrode conducting strip main body comprises a negative electrode butt joint part connected with one end of the negative electrode output pin, the negative electrode butt joint part is pressed on the negative electrode of the battery, a spring placing plate is arranged on the inner wall of the battery bin and positioned at the lower position of the negative electrode butt joint part, a spring is fixedly placed on the spring placing plate, and the top of the spring is in butt joint with the negative electrode butt joint part.

Adopt above-mentioned setting, when using, install the negative pole conducting strip main part in the battery compartment, the spring is placed the below that the board is located negative pole butt portion through the spring, the spring can form the support to negative pole butt portion, after loading into the battery, negative pole butt portion can with the negative pole butt of battery, thereby the area of contact with the battery negative pole has been improved, and the effect at the spring can make negative pole butt portion tightly with the negative pole butt of battery, reach the purpose of guaranteeing the contact effect of negative pole butt portion and battery negative pole, thereby guarantee the connection stability of negative pole butt portion and battery negative pole, even still can ensure the stability of circular telegram in the vibrations environment, the condition of undervoltage outage can not appear.

Further, the battery pack also comprises a fixing seat formed at the splicing part of the lower cover and the upper cover, wherein a flat cavity is communicated with one side of the fixing seat, which is positioned on the battery compartment, and the positive electrode fixing part of the positive electrode conducting strip main body is in flat fit in the flat cavity in a double-layer structure.

Adopt above-mentioned setting, through the setting of fixing base, increase the stability of anodal conducting strip main part installation, and anodal fixed part of anodal conducting strip main part adopts bilayer structure, and bulk strength is high, is difficult for taking place distortion, adopts the cooperation mode of keeping flat in keeping flat the intracavity simultaneously, reaches the purpose of being convenient for install anodal conducting strip main part, and installation stability is also better.

Drawings

Fig. 1 is a schematic structural diagram of a positive electrode conductive sheet according to embodiment 1 of the present utility model;

fig. 2 is a schematic view of a part of the structure of a positive electrode conductive sheet according to embodiment 1 of the present utility model;

fig. 3 is a schematic structural diagram of a positive electrode conductive sheet according to embodiment 2 of the present utility model;

fig. 4 is a schematic view of a portion of a positive electrode conductive sheet according to embodiment 2 of the present utility model;

fig. 5 is a schematic structural diagram of a positive electrode conductive sheet according to embodiment 3 of the present utility model;

fig. 6 is a schematic view of a part of the structure of a positive electrode conductive sheet according to embodiment 3 of the present utility model;

FIG. 7 is a schematic view showing the overall structure of the battery case according to the present utility model;

fig. 8 is an exploded view of the battery case according to the present utility model;

fig. 9 is a schematic view of the main structure of a negative electrode conductive sheet in the battery case structure of the present utility model.

In the figure: the lithium ion battery cell comprises a 1-positive electrode conducting plate main body, a 2-positive electrode pin part, a 3-positive electrode fixing part, a 4-positive electrode abutting part, a 5-positive electrode output pin, a 6-contact part, a 7-contact cavity, an 8-elastic abutting piece, a 9-hollowed part, a 10-first bending piece body, a 11-second bending piece body, a 12-third bending piece body, a 13-battery box body, a 14-negative electrode conducting plate main body, a 15-negative electrode output pin, a 16-lower cover, a 17-upper cover, a 18-auxiliary cover, a 19-battery bin, a 20-plug-in cavity, a 21-damping device, a 22-negative electrode abutting part, a 23-spring placing plate, a 24-spring, a 25-fixing seat and a 26-flat cavity.

Detailed Description

In order to more clearly illustrate the embodiments of the present utility model and/or the technical solutions in the prior art, the following description will explain specific embodiments of the present utility model with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the utility model, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort. The term "azimuth" refers to a relative positional relationship between the members, not to an absolute positional relationship.

Referring to fig. 1 to 2, in this embodiment 1, a positive electrode conductive sheet with stable contact is provided, the positive electrode conductive sheet includes a positive electrode conductive sheet main body 1, the positive electrode conductive sheet main body 1 sequentially has a positive electrode pin portion 2, a positive electrode fixing portion 3, and a positive electrode abutting portion 4, a positive electrode output pin 5 is disposed at one end of the positive electrode pin portion 2, one end of the positive electrode fixing portion 3 is engaged with the other end of the positive electrode pin portion 2, the other end of the positive electrode fixing portion 3 is engaged with one end of the positive electrode abutting portion 4, the positive electrode abutting portion 4 is pressed onto a positive electrode post of a battery, more specifically, the positive electrode conductive sheet main body 1 further includes a contact portion 6, the contact portion 6 is in a symmetrical structure, the contact portion 6 is matched with a lower surface of the positive electrode abutting portion 4 to form a contact cavity 7 matched with the positive electrode post of the battery, the contact cavity 7 is in an open structure with a front end opening, the battery is inserted into the contact cavity 7 from a side through the front end opening, and the positive electrode of the battery is snapped into the contact cavity 7 to form a multi-point contact with the positive electrode post of the battery.

After the battery is clamped into the contact cavity 7 from the opening direction, the positive electrode abutting part 4 of the positive electrode conducting strip main body 1 is in contact connection with the positive electrode column of the battery through the contact part 6, and the contact part 6 is propped open to form surrounding multi-point contact fit with the peripheral side wall of the positive electrode column of the battery under the action of elastic force, so that the elastic effect is better in contact connection, and the omnibearing contact connection is realized, so that the positive electrode power supply connection of the battery is more stable and reliable.

In this embodiment, be equipped with the elasticity conflict piece 8 that forms to the inside punching press of contact chamber 7 on the anodal butt portion 4, elasticity conflict piece 8 is used for being used for with the positive pole top of battery to act on, more specifically, the end of elasticity conflict piece 8 still forms the conflict end, the conflict end is towards the arc arch of contact chamber 7 inside, and the conflict end is located the opening one side of back contact chamber 7, in this way, the produced elastic potential energy of elasticity conflict piece 8 and elasticity restoring force can increase along with the gradual card income of battery, elasticity conflict piece 8 and the positive pole cooperation mode reasonable in design of battery, and with contact portion 6 cooperation has realized the contact connection to the positive pole dual full aspect of battery for the power supply connection of battery is more reliable and stable.

In this embodiment, the elastic interference pieces 8 are disposed at intervals, so that even if one of them cannot interfere with the positive electrode of the battery due to elastic fatigue, the rest still effectively keeps interfering with the positive electrode of the battery, and the contact is more stable, and it is noted that the elastic interference pieces 8 can be restored to a state of being flush with the lower surface of the positive electrode abutting portion 4 under the action of the top of the positive electrode of the battery.

In this embodiment, the contact portion 6 is a convex body formed by punching from the upper side to the lower side of the positive electrode contact portion 4 by a punch, the portion of the convex body corresponding to the inner walls of the two sides of the contact cavity 7 is inclined inwards from front to back, the contact portion 6 can be formed by punching the positive electrode contact portion 4 by a punch with a special shape, the forming mode of the contact portion 6 is simple and convenient, meanwhile, the inside of the convex body formed by punching is of a cavity structure, the portion of the convex body corresponding to the inner walls of the two sides of the contact cavity 7 is inclined inwards from front to back, by adopting the special structure, the inner walls of the two sides of the contact cavity 7 can gradually contact with the side walls of the positive electrode column of the battery along with the clamping of the positive electrode column of the battery, and deform to a certain extent until the positive electrode column of the battery positioned in the contact cavity 7 contacts with the inner walls of the contact portion 6 more well under the clamping force generated by deformation, thereby achieving the purpose of preventing intermittent poor contact.

As shown in fig. 3 to 4, embodiment 2, which is a positive electrode conductive sheet structure in the present utility model, is different in that:

in this embodiment, the hollowed-out portion 9 is provided on the positive electrode abutting portion 4, and the contact portion 6 is an arc-shaped sheet body, the arc-shaped sheet body is formed by bending the inner periphery of the hollowed-out portion 9 in the same direction, more specifically, the root parts of two ends corresponding to the arc-shaped sheet body are all provided with openings, the openings are formed, the subsequent bending process can be effectively performed, the overall structure is more reasonable, more specifically, the contact cavity 7 is formed by matching the arc-shaped sheet body with the lower surface of the positive electrode abutting portion 4, meanwhile, the portions of the inner walls of two sides of the arc-shaped sheet body corresponding to the contact cavity 7 are also inclined inwards from the front to the back, in this way, the inner walls of two sides of the contact cavity 7 formed by matching the arc-shaped sheet body with the lower surface of the positive electrode abutting portion 4 are also clamped in along with the positive electrode column of the battery, and are gradually contacted with the positive electrode column side walls of the battery, and the positive electrode column of the battery is deformed to a certain extent until the battery is clamped in place, the positive electrode column of the battery is deformed under the action of the generated clamping force, the inner side walls 6 are better in the contact cavity, the contact cavity is prevented from being broken, the poor in the contact performance is achieved, the intermittent forming performance of the positive electrode abutting portion is prevented, the positive electrode abutting portion is poor in the production performance is formed, and the contact performance is poor, and the product is produced, and the poor in the contact performance is produced, and the positive electrode forming performance is reduced.

As shown in fig. 5 to 7, embodiment 3, which is a positive electrode conductive sheet structure in the present utility model, is different in that:

in this embodiment, the positive electrode abutting portion 4 is also provided with the hollowed portion 9, the hollowed portion 9 is formed, the forming cost of the positive electrode abutting portion 4 is reduced, the contact portion 6 is formed by bending the first bending sheet body 10, the second bending sheet body 11 and the third bending sheet body 12 at equal intervals on the inner periphery of the hollowed portion 9, wherein the second bending sheet body 11 is located at the rear side of the first bending sheet body 11 and the third bending sheet body 12, the first bending sheet body 11 and the third bending sheet body 12 are located at two sides of the second bending sheet body 11 respectively, that is, the contact cavity 7 is formed by matching the separated first bending sheet body 10, the second bending sheet body 11 and the third bending sheet body 12 with the lower surface of the positive electrode abutting portion 4, by adopting such a structure, the requirement on the ductility performance of the positive electrode abutting portion 4 of the positive electrode conductive sheet body 1 is reduced, meanwhile, the bending stress during bending is reduced, the bending process is easier to be performed, and the deformation is not easy to recover after bending, and the structure is reasonable.

In this example, the first bending sheet body 10 and the third bending sheet body 12 are inclined inwards from front to back, so that the inner walls of the two sides of the contact cavity 7 formed by the cooperation of the separated first bending sheet body 10, second bending sheet body 11 and third bending sheet body 12 and the lower surface of the positive electrode abutting part 4 are also gradually contacted with the side wall of the positive electrode post of the battery along with the clamping of the positive electrode post of the battery until the battery is clamped in place, and the positive electrode post of the battery positioned in the contact cavity 7 can better keep multi-point contact with the inner wall of the contact part 6, thereby achieving the purpose of better preventing the occurrence of intermittent poor contact.

In a second aspect, as shown in fig. 7-9, the utility model further provides a battery box for an electric meter, including a battery box body 13, a negative electrode conductive sheet main body 14 connected with a negative electrode output pin 15, and a positive electrode conductive sheet main body 1, where the battery box body 13 includes a lower cover 16, an upper cover 17, and a secondary cover 18, a battery compartment 19 for placing a battery and a plugging cavity 20 for placing the negative electrode output pin 15 and the positive electrode output pin 5 are disposed on the lower cover 16, the negative electrode conductive sheet main body 14 and the positive electrode conductive sheet main body 1 are clamped at two ends of the battery compartment 19, the upper cover 17 and the secondary cover 18 are respectively covered on the battery compartment 19 and the plugging cavity 20, and form detachable connection with the lower cover 16, the battery compartment 19 and the plugging cavity 20 are integrally disposed on the lower cover 16, and the effective fixation of a power supply battery and the plugging seat is realized through the cooperation of the upper cover 17 and the secondary cover 18, the matching positions of the negative electrode output pin 15 and the positive electrode output pin 5 and the plugging seat are not exposed, the power is safer, and the lower cover 16 and the upper cover 17 and the secondary cover 18 are provided with detachable connection structure, which is convenient for maintenance.

More specifically, the inner walls of the battery compartment 19 corresponding to the lower cover 16 and the upper cover 17 are also provided with a damping device 21, the damping device 21 can be a damping sheet made of silica gel material, and the contact cavity 7 is of a structure with an opening at the front end, so that the battery is placed at the side, the battery needs to be propped against the side, otherwise, the contact position of the positive electrode can run to the side, and the battery has a tolerance, so that the battery is propped against the damping device 21 made of silica gel material, the positive electrode propping part 4 of the battery in the combined battery box is fully contacted with the positive electrode post of the battery, meanwhile, the damping device 21 is arranged, and the phenomenon that the battery and the negative electrode conducting sheet main body 14 installed in the battery compartment 19 are in poor contact due to vibration is avoided, so that the power supply is more stable.

More specifically, the negative electrode conductive sheet main body 14 includes a negative electrode abutting portion 22 that links up with one end of the negative electrode output pin 15, the negative electrode abutting portion 22 presses on the negative electrode of the battery, be located on the battery compartment 19 inner wall the below position department of negative electrode abutting portion is equipped with spring placement plate 23, spring 24 has been placed to spring placement plate 23 is fixed, the top and the negative electrode abutting portion 22 butt of spring 24, in the use, install negative electrode conductive sheet main body 14 in the battery compartment 19, spring 24 is located the below of negative electrode abutting portion 22 through spring placement plate 23, spring 23 can form the support to negative electrode abutting portion 22, after loading into the battery, negative electrode abutting portion 22 can with the negative electrode butt of battery, thereby improve the area of contact with the battery negative electrode, and the effect of guaranteeing the negative electrode abutting portion 22 with the negative electrode butt of battery tightly in the effect of spring 23 is reached, thereby guarantee the stability of the connection of negative electrode abutting portion 22 and battery negative electrode, even in the vibration environment still can not appear the under-voltage's the circumstances of switching on.

More specifically, the battery case for the ammeter still includes the fixing base 25 that forms in lower cover 16 and upper cover 17 amalgamation department, the fixing base 25 is located one side intercommunication of battery compartment 19 and is equipped with the chamber of keeping flat 26, anodal fixed part 3 of anodal conducting strip main part 1 is bilayer structure and keeps flat the cooperation in the chamber of keeping flat 26, through the setting of fixing base 25, the stability of anodal conducting strip main part 1 installation is increased, and anodal fixed part 3 of anodal conducting strip main part 1 adopts bilayer structure, bulk strength is high, be difficult for taking place distortion, adopt the cooperation mode of keeping flat in the chamber of keeping flat 26 simultaneously, reach the purpose of being convenient for install anodal conducting strip main part 1, installation stability is also better.

The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.

Claims (8)

1. The utility model provides a positive pole conducting strip of contact stability, includes positive pole conducting strip main part (1), positive pole conducting strip main part (1) include positive pole butt portion (4), positive pole butt portion (4) are used for pressing on the positive pole post of battery, its characterized in that: the positive electrode conducting strip main body (1) further comprises a contact portion (6), the contact portion (6) is matched with the lower surface of the positive electrode abutting portion (4) to form a contact cavity (7) matched with a positive electrode column of the battery, the contact cavity (7) is of an open structure with an open front end, and along with the positive electrode column of the battery is clamped into the contact cavity (7), and the contact portion (6) and the side wall of the positive electrode column of the battery form surrounding multi-point contact matching.

2. The contact-stable positive electrode conductive sheet according to claim 1, wherein: the positive electrode abutting part (4) is provided with an elastic abutting piece (8) formed by stamping the inside of the contact cavity (7), and the abutting end of the elastic abutting piece (8) is positioned at one side of the opening of the contact cavity (7) back to the opposite side.

3. The contact-stable positive electrode conductive sheet according to claim 1, wherein: the contact part (6) is a convex body formed by punching from the upper side to the lower side of the positive electrode abutting part (4) by a punch, and the part of the convex body corresponding to the inner walls at the two sides of the contact cavity (7) is inclined inwards from front to back.

4. The contact-stable positive electrode conductive sheet according to claim 1, wherein: the positive electrode butt joint part (4) is provided with a hollowed-out part (9), the contact part (6) is an arc sheet body, the arc sheet body is formed by bending the inner periphery of the hollowed-out part (9) in the same direction, and the arc sheet body corresponds to the inner walls of the two sides of the contact cavity (7) and is inclined inwards from front to back.

5. The contact-stable positive electrode conductive sheet according to claim 1, wherein: the positive electrode butt joint part (4) is provided with a hollowed-out part (9), the contact part (6) is formed by bending a first bending sheet body (10), a second bending sheet body (11) and a third bending sheet body (12) in the same direction at intervals on the inner periphery of the hollowed-out part (9), and the first bending sheet body (10) and the third bending sheet body (12) are inclined inwards from front to back.

6. The utility model provides a battery case for ammeter which characterized in that: including battery box body (13), be connected with negative pole conducting strip main part (14) of negative pole output pin (15) and any of claims 1-5 anodal conducting strip, battery box body (13) include lower cover (16), upper cover (17), and auxiliary lid (18), be equipped with on lower cover (16) be used for placing battery storehouse (19) and be used for placing negative pole output pin (15) the grafting chamber (20) of anodal output pin (5), negative pole conducting strip main part (14) with anodal conducting strip main part (1) cartridge in the both ends of battery storehouse (19), upper cover (17) with auxiliary lid (18) are respectively covered on battery storehouse (19) with on grafting chamber (20), and all with under cover (16) constitute detachable connection, under cover (16) with upper cover (17) correspond still be equipped with damping device (21) on the inner wall of battery storehouse (19).

7. The electricity meter battery pack as set forth in claim 6, wherein: the negative electrode conducting strip main body (14) comprises a negative electrode abutting portion (22) which is connected with one end of the negative electrode output pin (15), the negative electrode abutting portion (22) is pressed on the negative electrode of the battery, a spring placing plate (23) is arranged at the position, below the negative electrode abutting portion (22), in the battery bin (19), the spring placing plate (23) is fixedly provided with a spring (24), and the top of the spring (24) is abutted to the negative electrode abutting portion (22).

8. The electricity meter battery pack as set forth in claim 6, wherein: the battery pack is characterized by further comprising a fixing seat (25) formed at the splicing position of the lower cover (16) and the upper cover (17), wherein a flat-placed cavity (26) is communicated and arranged on one side of the battery compartment (19) in a position where the fixing seat (25) is located, and the positive electrode fixing portion (3) of the positive electrode conducting strip main body (1) is in flat-placed fit in the flat-placed cavity (26) in a double-layer structure.

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