CN212659619U

CN212659619U - A battery case and electric energy meter for electric energy meter

Info

Publication number: CN212659619U
Application number: CN202020714068.7U
Authority: CN
Inventors: 段亮; 魏章波; 林国庆; 洪少可; 程振华; 杨振宁
Original assignee: Ningbo Sanxing Electric Co Ltd
Current assignee: Ningbo Sanxing Electric Co Ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-03-05
Anticipated expiration: 2030-04-30

Abstract

A battery box for an electric energy meter and the electric energy meter are provided, the battery box for the electric energy meter comprises a box body, a battery box cover and a battery box cover, wherein the box body is provided with an opening for the battery to pass through; the box cover is arranged at the opening of the box body and forms a battery compartment with the box body in an enclosing way; the two conducting strips are at least partially positioned in the battery bin, the first end of each conducting strip is electrically connected with one pole of the battery, and the second end of each conducting strip extends out of the battery box; the method is characterized in that: the box body is internally concavely provided with a containing groove for containing a battery, one of the two conducting strips is limited on the bottom wall of the box body, the other conducting strip is limited on the peripheral wall of the box body, and the box body is provided with an opening for the second ends of the two conducting strips to penetrate out. When the box cover is opened, the conducting strips are reliably and electrically connected with the battery all the time, the contact is reliable, the electric connection between the battery and the two conducting strips is not influenced, the condition of poor contact caused by the disassembly and the assembly of the battery box and the battery by the conducting strips in the prior art is overcome, and the structural design is more reasonable.

Description

A battery case and electric energy meter for electric energy meter

Technical Field

The utility model belongs to the technical field of the ammeter, concretely relates to battery case and electric energy meter for electric energy meter.

Background

An external battery is usually arranged in the electric energy meter, so that the electric energy meter can be continuously powered after the system is powered down, partial functions of the electric energy meter can be continuously maintained, and the MCU can conveniently report power down events by supplying power to the main chip.

The current electric energy meter, such as the battery box of the chinese utility model patent No. ZL201621348049.7 (publication No. CN206312978U), discloses a battery box, which comprises a battery holder and a battery cover connected in a plug-in manner, wherein the battery holder comprises a seat body and two elastic sheets mounted on the seat body; the battery cover comprises a cover body, two elastic clamping arms which are symmetrically arranged and extend out of the cover body, and a bearing bottom plate connected with the cover body or the clamping arms, wherein the cover body, the clamping arms and the bearing bottom plate surround to form a battery accommodating cavity for accommodating a battery; when the battery seat and the battery cover are in a plug-in state, the clamping force of the two elastic sheets to the battery is smaller than the clamping force of the clamping arm to the battery, so that the battery can be taken down from the battery seat along with the battery cover when the battery cover is pulled out.

In the patent, the battery box is used for accommodating a button battery, and the battery seat and the battery cover of the battery box are inserted, so that when the battery is replaced, the clamping force of the metal elastic sheet on the battery is smaller than the clamping force of the clamping arm on the battery, and the battery cover can be taken down from the battery seat together when the battery is pulled out; and still need to accomplish the electricity through the contact of metal shrapnel and battery and be connected and form the electric current return circuit, so, hardly guarantee that the clamp force of metal shrapnel to the battery is less than the clamp force of clamp arm to the battery when battery and metal shrapnel realize reliable connection to in the in-process of frequent plug, lead to the elastic failure of metal shrapnel and lead to battery and metal shrapnel to appear the condition of contact failure.

Therefore, further improvements in the existing battery case structure are required.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a first technical problem that will solve is to above-mentioned prior art's current situation, provides a battery case that is used for the electric energy meter that does not influence the reliable electricity of battery and connects when opening the lid.

The utility model aims to solve the second technical problem that, a convenient electric energy meter of battery case cartridge is provided.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: a battery box for an electric energy meter comprises

The bottom of the box body is provided with an opening through which the battery passes;

the box cover is covered at the opening of the box body, and a battery bin is formed by enclosing the box cover and the box body;

the two conducting strips are at least partially positioned in the battery bin, the first end of each conducting strip is electrically connected with one pole of the battery, and the second end of each conducting strip extends out of the battery box;

the method is characterized in that: the box body is internally and concavely provided with a containing groove for containing a battery, one of the two conducting strips is limited on the top wall of the box body, the other conducting strip is limited on the box body and positioned at the outer side of the battery, and the box body is provided with an opening for the second ends of the two conducting strips to pass through.

In order to facilitate the connection of the subsequent battery box, the second end of the box body adjacent to the conducting strip extends upwards to form a connecting part, and the opening is formed in the connecting part.

The two conducting strips can be limited in a plurality of ways, such as a clamping connection limiting way and a slot connecting way, but preferably, the two conducting strips are a first conducting strip and a second conducting strip respectively, and a slot for the first conducting strip to be at least partially inserted into is formed in the position, adjacent to the connecting part, of the box body; the top wall of the box body is provided with a mounting hole, and correspondingly, the second conductive sheet is provided with a plug pin which is matched with the mounting hole in an inserted manner.

The first conductive sheet has various structural forms, but preferably, the first conductive sheet includes a U-shaped bent portion, one end of the bent portion extends to an end away from the battery and is bent upward to form an extending section, a local portion of the extending section penetrates through the opening, a limiting protrusion is disposed in the slot to limit the movement of the bent portion, and the bent portion has a contact that abuts against and is electrically connected to a local portion of the outer peripheral wall of the battery.

In order to limit the battery, at least two elastic convex parts which are arranged at intervals along the circumferential direction are arranged on the inner circumferential wall of the accommodating groove, and the elastic convex parts are abutted against the bottom surface of the battery when the battery is in the accommodating groove.

In order to further realize the limiting of the battery, an extending plate extending upwards is arranged on the inner wall of the box cover, and the top surface of the extending plate is abutted against the battery in the state that the box cover is arranged on the box body.

The connection mode of box body and lid can adopt the form of components of a whole that can function independently connection, like screw connection, can also adopt the form of rotation connection, but preferably, the first side of lid rotates to be set up on the corresponding position of box body, the second side joint of lid is in on the box body.

Specifically, the second side of lid is provided with at least one elastic buckle, correspondingly, seted up on the box body with elastic buckle looks joint complex bayonet socket, the second side of lid is installed through the joint cooperation of elastic buckle and bayonet socket on the lid.

The utility model provides a technical scheme that above-mentioned second technical problem adopted does: an electric energy meter with foretell battery case, its characterized in that: the socket is provided with a socket for the insertion of the connecting part, the connecting part is inserted in the socket, two contact pins are arranged in the socket, and the contact pins are electrically connected with the corresponding conducting strips.

In order to realize the connection between the connecting part and the socket, a clamping block is arranged on the outer wall of the connecting part, and a notch for the clamping block to be clamped in is formed in the position, corresponding to the clamping block, of the socket.

So, only need pull down the connector of battery case from the socket and can realize the dismantlement of whole battery case to the reliable connection of battery in not influencing the battery case.

Compared with the prior art, the utility model has the advantages of: a battery and two conducting strips electricity are connected for among the battery case of electric energy meter, and two conducting strips are spacing on the box body, opening the lid, and the conducting strip is reliably connected with the battery electricity all the time, and the contact is reliable to do not influence the battery and be connected with the electricity of two conducting strips, has overcome the bad contact condition that the dismouting that relies on the conducting strip to realize battery case and battery among the prior art brought, and its structural design is reasonable more.

Drawings

Fig. 1 is a schematic view of a partial structure of the electric energy meter according to the embodiment;

FIG. 2 is an enlarged schematic view of the portion A of FIG. 1;

FIG. 3 is a cross-sectional view of FIG. 1;

FIG. 4 is a schematic view of a portion of the structure of FIG. 1;

FIG. 5 is a perspective exploded view of the battery case;

FIG. 6 is a perspective exploded view of the battery pack at another angle;

FIG. 7 is a partial structure view of the battery case;

FIG. 8 is a schematic perspective exploded view of FIG. 5;

fig. 9 is a schematic structural view of a case body of the battery pack.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 9, the electric energy meter of the present embodiment includes a battery box, a circuit board 6, a socket 61, a base 7 and a casing 8, the casing 8 and the base 7 are arranged from front to back, a front side of the base 7 is open, the casing 8 covers the base 7, and forms an accommodating cavity 81 by enclosing with the base 7, as shown in fig. 3, the circuit board 6 is located in the accommodating cavity 81.

As shown in fig. 2 to 4, the battery case is flat and disposed on the outer side of the bottom wall of the casing 8, and includes two conductive sheets, and a case body 1 and a case cover 2 arranged in this order from top to bottom. The bottom of the box body 1 is provided with an opening for the battery 4 to pass through, the box cover 2 is arranged at the opening of the box body 1 in a covering manner, a battery bin 1a for containing the battery 4 is formed between the box body 1 and the box cover in a surrounding manner, and the battery 4 is a button battery which is basically circular. As shown in fig. 3, the two conductive sheets are both at least partially located in the battery compartment 1a and disposed on the box body 1, first ends of the two conductive sheets are both electrically connected to the button battery, and second ends of the two conductive sheets penetrate through the opening 114 and are fixedly connected to the connecting portion 14. Specifically, the two conductive sheets are a first conductive sheet 51 electrically connected to the positive terminal of the battery 4 and a second conductive sheet 52 electrically connected to the negative terminal of the battery 4, as shown in fig. 6 and 7, the box body 1 extends upward to form a connection portion 14 adjacent to the second terminal of the conductive sheet, an opening 142 for the second terminal of the conductive sheet to pass through is formed on the connection portion 14, specifically, a partition is disposed in the opening 142, and the opening 142 is partitioned by the partition into a first opening 1421 for the second terminal of the first conductive sheet to pass through and a second opening 1422 for the second terminal of the second conductive sheet to pass through.

In order to connect the first conductive sheet and the second conductive sheet, specifically, a slot 112 for the first conductive sheet 51 to be at least partially inserted therein is formed in the position of the box body 1 adjacent to the connection portion 14; the first conductive tab 51 includes a U-shaped bent portion 511, one end of the bent portion 511 extends to an end away from the battery 4 and is bent upward to form an extending section 512, a limiting protrusion 1121 for limiting the movement of the bent portion 511 is disposed in the slot 112, and the bent portion 511 has a contact 5111 abutting against and electrically connected to a local portion of the outer peripheral wall of the battery 4. The inner side of the top wall of the box body 1 is recessed upwards to form a limiting groove 115 for accommodating the second conductive sheet 52 therein, the limiting groove 115 is provided with a mounting opening 113, correspondingly, the second conductive sheet 52 is provided with a pin 521 which is in insertion fit with the mounting opening 113, and the second conductive sheet 52 is limited in the limiting groove 115 through the insertion fit of the pin 521 and the corresponding mounting opening 113.

As shown in fig. 7, the socket 61 has a socket 611, and the second end of the pin 612 is inserted into the circuit board 6 and electrically connected to the corresponding position of the circuit board 6, and the orientation of the pin is specifically referred to the direction of the arrow in fig. 1. The second end of the second conductive sheet 52 is provided with a jack 522 into which the first end of one pin 612 is inserted, and the second end of the second conductive sheet 52 is electrically connected with the corresponding pin 522 through the inserting fit of the corresponding pin 612 and the jack 522; the end of the extending section 512 of the first conductive plate 51 is provided with an avoiding hole 5121 into which the first end of the other pin 612 is inserted, and the end of the extending section 512 is electrically connected to the corresponding pin 612 by the insertion fit between the corresponding pin 612 and the avoiding hole 5121. In this way, in the state where the connection portion 14 is partially inserted into the socket 611, the second ends of the two conductive pieces are electrically connected to the corresponding pins 612 in the socket 61. In order to realize the connection of the connection portion, a fixture block 141 is disposed on an outer wall of the connection portion 14, in this embodiment, two front and rear opposite side walls of the connection portion 14 are respectively provided with one fixture block 141, the socket 611 is provided with a notch 6111 at a position corresponding to the fixture block 141, in which the fixture block 141 is clamped, and the connection portion 14 is mounted on the box body 1 through the clamping fit of the fixture block 141 and the side edge corresponding to the notch 6111.

In order to realize the connection between the box body and the box cover, in this embodiment, the rear side of the box cover 2 is rotatably disposed at the corresponding position of the box body 1, and the front side of the box cover 2 is clamped and fixed on the box body 1. Specifically, the front side of the box cover 2 is provided with at least one elastic buckle 21, in this embodiment, there are two elastic buckles 21, and the two elastic buckles 21 are arranged at intervals from left to right, correspondingly, the box body 1 is provided with a bayonet 15 which is matched with the corresponding elastic buckle 21 in a clamping manner, and the front side of the box cover 2 is installed on the box cover 2 through the clamping cooperation of the elastic buckle 21 and the corresponding bayonet 15. In order to open the box cover 2 conveniently, a handle 23 is arranged on the outer wall of the box cover 2.

In order to press the battery, an extension plate 22 extending upward is provided on the inner wall of the box cover 2, and the top surface of the extension plate 22 abuts against the battery 4 in a state where the box cover 2 is covered on the box body.

In order to realize the front-back positioning of the battery box, as shown in fig. 2, the bottom wall of the housing 8 is provided with a first extending plate 82 extending downwards, the cross section of the first extending plate 82 is U-shaped, the front wall surface of the base 7 is provided with a second extending plate 71 extending forwards, when the battery box is in the mounted state, the battery box is positioned between the first extending plate 82 and the second extending plate 71 and is respectively abutted against the first extending plate 82 and the second extending plate 71, and the connector 3 is positioned in the space enclosed by the first extending plate 82 and the battery box.

As shown in fig. 9, a containing groove 11 for containing the button cell is formed in the case 1, the cross section of the containing groove 11 is substantially circular, at least two elastic protrusions 111 arranged at intervals along the circumferential direction are arranged on the inner peripheral wall of the containing groove 11, and when the button cell is in the containing groove 11, the elastic protrusions 111 abut against the bottom surface of the button cell, as shown in fig. 3.

When installing the battery case on the electric energy meter, only need pull down the connecting portion of battery case from the socket and can realize the dismantlement of whole battery case, do not influence the reliable connection of battery in the battery case. The battery boxes with various structural forms can be matched through the connection of the connecting parts. When opening the lid, the conducting strip is reliably connected with the battery electricity all the time, and the contact is reliable to do not influence the battery and be connected with the electricity of two conducting strips, overcome the bad contact condition that relies on the conducting strip to realize the dismouting of battery case and battery and bring among the prior art, its structural design is reasonable more.

Directional terms such as "front", "rear", "upper", "lower", "side", "top", "bottom", and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the present invention, but are used herein for convenience of description only and are determined based on example orientations shown in the drawings. Because the disclosed embodiments may be arranged in different orientations, these directional terms are for illustrative purposes only and should not be construed as limiting, and for example, "upper" and "lower" are not necessarily limited to orientations opposite or consistent with the direction of gravity.

Claims

1. A battery box for an electric energy meter comprises

A box body (1) with an opening at the bottom for passing the battery (4);

the box cover (2) is covered at the opening of the box body (1) and forms a battery compartment (1a) with the box body (1) in an enclosing way;

the two conducting strips are at least partially positioned in the battery bin (1a), the first end of each conducting strip is electrically connected with one pole of the battery (4), and the second end of each conducting strip extends out of the battery box;

the method is characterized in that: the battery box is characterized in that the box body (1) is internally concave and provided with a containing groove (11) for containing the battery (4), one of the two conducting strips is limited on the top wall of the box body (1), the other conducting strip is limited on the box body (1) and is positioned on the outer side of the battery (4), and the box body (1) is provided with an opening (142) for the second end of the two conducting strips to pass through.

2. A battery pack as claimed in claim 1, wherein: the box body (1) is adjacent to the second end of the conducting strip and extends upwards to form a connecting part (14), and the opening (142) is formed in the connecting part (14).

3. A battery pack as claimed in claim 2, wherein: the two conducting strips are respectively a first conducting strip (51) and a second conducting strip (52), and a slot (112) for the first conducting strip (51) to be at least partially inserted in is formed in the position, close to the connecting part (14), of the box body (1); the top wall of the box body (1) is provided with an installation opening (113), and correspondingly, the second conducting strip (52) is provided with a pin (521) which is in inserted connection with the installation opening (113).

4. A battery pack as claimed in claim 3, wherein: the first conducting strip (51) comprises a U-shaped bent part (511), one end of the bent part (511) extends towards one end far away from the battery (4) and is bent upwards to form an extending section (512) with a part penetrating out of the opening, a limiting convex part (1121) for limiting the movement of the bent part (511) is arranged in the slot (112), and a contact (5111) which is abutted against and electrically connected with the part of the peripheral wall of the battery (4) is arranged on the bent part (511).

5. A battery pack as claimed in claim 1, wherein: at least two elastic convex parts (111) which are arranged at intervals along the circumferential direction are arranged on the inner circumferential wall of the accommodating groove (11), and the elastic convex parts (111) are abutted against the bottom surface of the battery (4) when the battery (4) is positioned in the accommodating groove (11).

6. A battery pack as claimed in claim 1, wherein: the inner wall of the box cover (2) is provided with an extending plate (22) extending upwards, and the top surface of the extending plate (22) is abutted to the battery (4) when the box cover (2) is covered on the box body.

7. A battery pack as claimed in claim 1, wherein: the first side of lid (2) rotates to be set up on the corresponding position of box body (1), the second side joint of lid (2) is in on box body (1).

8. A battery pack as claimed in claim 7, wherein: the second side of lid (2) is provided with at least one elasticity buckle (21), correspondingly, seted up on box body (1) with elasticity buckle (21) looks joint complex bayonet socket (15), the second side of lid (2) is installed through the joint cooperation of elasticity buckle (21) and bayonet socket (15) on lid (2).

9. An electric energy meter having the battery pack according to any one of claims 2 to 8, characterized in that: the socket is characterized by further comprising a circuit board (6) and a socket (61) electrically connected with the circuit board (6), wherein a socket (611) for the connection part (14) to be inserted is formed in the socket (61), the connection part (14) is inserted into the socket (611), two pins (612) are arranged in the socket (611), and the pins (612) are electrically connected with corresponding conducting strips.

10. The electrical energy meter of claim 9, wherein: a clamping block (141) is arranged on the outer wall of the connecting part (14), and a notch (6111) for clamping the clamping block (141) is formed in the position, corresponding to the clamping block (141), of the socket (611).