CN217085062U - Electric energy meter - Google Patents

Abstract

The utility model relates to an electric energy meter, which comprises a shell, a circuit board component arranged in the shell and a connecting terminal arranged on the shell, wherein the connecting terminal is electrically connected with the circuit board component and comprises a butting part; the circuit board assembly comprises a circuit board and a metal connecting piece, wherein the metal connecting piece is electrically connected with the circuit board and is in abutting fit with the abutting part. The assembly is also convenient.

Description

Electric energy meter

Technical Field

The utility model relates to a strapping table technical field, concretely relates to electric energy meter.

Background

An electric energy meter is an instrument for measuring electric energy, also called watt-hour meter, fire meter, kilowatt-hour meter, and refers to instruments for measuring various electric quantities.

For example, chinese utility model patent with application No. cn201720615678.x (publication No. CN207366611U) discloses "an electric energy meter structure", this electric energy meter structure includes the end button box and the circuit board of being connected with the end button box, include a plurality of contact pins that can be in the same place with circuit board lug weld on the end button box, set up the contact pin on the end button box, then with contact pin and circuit board lug weld, just so avoided through patchcord lug connection between end button box and the circuit board, end button box and circuit board have formed integral type structure, the complexity of assembly has also been avoided during the assembly, improve production efficiency simultaneously, and this kind of condition of software installation mistake does not take place moreover.

However, the above patent does not disclose other electric energy meter structures, and thus can be further improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to prior art's current situation, provide an electric energy meter, convenient assembly equally.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides an electric energy meter, includes the casing, sets up circuit board subassembly in the casing, sets up the binding post on the casing, and binding post is connected its characterized in that with circuit board subassembly electricity: the terminal includes an abutting portion;

the circuit board assembly comprises

A circuit board;

and the metal connecting piece is electrically connected with the circuit board and is in abutting fit with the abutting part.

For the convenience of installation, the abutting part of the wiring terminal is positioned above the metal connecting piece. So that the abutment is connected down to the metal connection piece.

The structure of the metal connecting member may be various, and preferably, the metal connecting member includes

A first portion connected to an upper surface of the circuit board;

and the second part is positioned above the first part and is connected with the first part, and at least part of the second part is made of elastic material which is used for being in interference fit with the abutting part of the wiring terminal.

The structure of the second part may be varied, preferably the second part comprises

A first section connected to the front end of the first portion and extending rearward;

and a second section extending upwardly and rearwardly from a rear end of the first section.

The structure of the second part can be various, and preferably, the second part further comprises

A third section connected to a rear end of the second section, the third section extending downward and forward;

and the fourth section extends upwards and forwards from the front end of the third section, and the position where the fourth section is connected with the third section is used for downwards abutting against and matching with the upper surface of the first part.

In order to ensure that the metal connecting piece and the connecting terminal are in good contact, the second section, or/and the third section, or/and the fourth section are made of elastic materials. Therefore, even if certain production and assembly errors exist in the metal connecting piece and the wiring terminal, the metal connecting piece and the wiring terminal can be compensated through the elastic part, and the metal connecting piece and the wiring terminal are favorable for good foundation.

In order to increase the strength of the second section, the middle part of the second section is provided with an upwardly extending bead. By providing the reinforcement ribs, the strength of the second section is thus greater.

The connection structure of the metal connector and the circuit board can be various, and preferably, the metal connector further comprises a pin extending downwards from the first part, and the pin is plugged with the circuit board. The metal connecting piece is connected with the circuit board through pins, and the metal connecting piece is connected with the circuit board through a welding mode.

The metal connecting member may have various structures, and preferably, the metal connecting member further includes a third portion extending upward from the first portion, the third portion having a through hole penetrating in a left-right direction, and the second portion having a lug protruding into the through hole. The lug and the third part are arranged for limiting the second part.

In order to facilitate production and assembly, the shell comprises a bottom shell, an end button box integrally formed with the bottom shell, a housing located above the bottom shell and connected with the bottom shell, and the housing and the wiring terminal are integrally formed. When the housing is connected with the bottom shell, the wiring terminal and the circuit board assembly can be in interference fit to realize electric connection between the wiring terminal and the circuit board assembly, and the dismounting and the mounting are convenient.

Compared with the prior art, the utility model has the advantages of: binding post includes butt portion, and circuit board assembly includes circuit board and metal connecting piece, and metal connecting piece contradicts with butt portion and cooperates, just can realize electric connection between them, convenient assembling.

Drawings

Fig. 1 is a schematic perspective view of an electric energy meter according to a first embodiment of the present invention;

FIG. 2 is an exploded view of the electrical energy meter of FIG. 1;

fig. 3 is an assembly schematic view of a housing and a connecting terminal according to a first embodiment of the present invention;

fig. 4 is an exploded view of a housing and a terminal according to a first embodiment of the present invention;

fig. 5 is a schematic structural view of a connection terminal and a circuit board assembly according to a first embodiment of the present invention (in which one connection terminal and one metal connecting member are in a disassembled state);

fig. 6 is a schematic perspective view of a metal connecting member according to a first embodiment of the present invention;

fig. 7 is a schematic view of another angle of the metal connector of fig. 6.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

Fig. 1 to 7 show a preferred embodiment of the electric energy meter according to the present invention.

The electric energy meter comprises a shell 200, a circuit board assembly 100 arranged in the shell 200 and a wiring terminal 3 arranged on the shell 200, wherein the wiring terminal 3 is electrically connected with the circuit board assembly 100.

The housing 200 includes a bottom case 4, an end button box 5 integrally formed with the bottom case 4, and a housing 6 located above the bottom case 4 and connected to the bottom case 4, wherein the housing 6 and the connection terminal 3 are integrally formed. So be difficult to have the gap between end knob box 5 and the drain pan 4, be difficult to have the gap between housing 6 and the binding post 3 like this, waterproof, dustproof effect is better, specifically, housing 6 has the through hole 6a that supplies binding post 3 to pass that runs through around.

The terminal 3 includes an abutting portion 31 which is in a straight line shape, and the abutting portion may be adjusted to other shapes as necessary. The wiring terminal 3 is an auxiliary terminal for wiring a signal line. And a current terminal is arranged in the end button box 5.

The circuit board assembly 100 includes a circuit board 2 and a metal connector 1, wherein the metal connector 1 is electrically connected to the circuit board 2 and is in interference fit with the abutting portion 31. The abutting portion 31 of the connection terminal 3 is located above the metal connector 1.

The metal connector 1 includes a first portion 11, a second portion 12, a pin 14 extending downward from the first portion 11, and a third portion 13 extending upward from the first portion 11. The first portion 11 is connected to the upper surface of the circuit board 2; the second portion 12 is located above the first portion 11 and connected to the first portion 11, and the second portion 12 includes a first segment 121, a second segment 122, a third segment 123, and a fourth segment 124. The first section 121 is connected to the front end of the first portion 11 and extends rearward; the second section 122 extends upwards and backwards from the rear end of the first section 121, the middle part of the second section 122 is provided with a reinforcing rib 1221 extending upwards, the third section 123 is connected with the rear end of the second section 122, the third section 123 extends downwards and forwards, the fourth section 124 extends upwards and forwards from the front end of the third section 123, and the position where the fourth section 124 is connected with the third section 123 is used for being downwards in interference fit with the upper surface of the first part 11. The third portion 13 has a through hole 131 penetrating in the left-right direction, and the second portion 12 has a lug 12a projecting into the through hole 131. The second portion 12 is made of an elastic material at least partially for abutting against the abutting portion 31 of the connecting terminal 3, and in this embodiment, the second section 122, the third section 123, and the fourth section 124 are made of an elastic material. The pins 14 are inserted into the circuit board 2, and the number of the pins 14 is 3 and the pins are arranged in a triangle shape; in other embodiments, the number of the pins 14 can be adjusted according to the requirement, and the metal connector 1 and the circuit board 2 can also be welded.

The working principle and the use method of the electric energy meter in the embodiment are as follows.

End button box 5 and drain pan 4 integrated into one piece and make both link to each other, link to each other metal connecting piece 1 and circuit board 2, install circuit board 2 on drain pan 4, housing 6 and binding post 3 integrated into one piece and make both link to each other, then link to each other housing 6 and drain pan 4, binding post 3 conflicts the cooperation with metal connecting piece 1 this moment to realize electric connection between them, specifically the position that second section 122 and third section 123 of metal connecting piece 1 link to each other conflicts the cooperation with metal connecting piece 1. The metal connecting member 1 has a plurality of positions in contact with the terminal 3, and the contact is good.

Claims (10)

1. The utility model provides an electric energy meter, includes casing (200), sets up circuit board subassembly (100) in casing (200), sets up binding post (3) on casing (200), and binding post (3) are connected its characterized in that with circuit board subassembly (100) electricity: the terminal (3) comprises an abutment (31);

the circuit board assembly (100) comprises

A circuit board (2);

and the metal connecting piece (1) is electrically connected with the circuit board (2) and is in interference fit with the abutting part (31).

2. The electric energy meter of claim 1, wherein: the abutting part (31) of the wiring terminal (3) is positioned above the metal connecting piece (1).

3. An electric energy meter according to claim 1, characterized in that: the metal connecting piece (1) comprises

A first portion (11) connected to the upper surface of the circuit board (2);

and a second portion (12) located above the first portion (11) and connected to the first portion (11), wherein the second portion (12) is at least partially made of an elastic material for interference fit with the abutting portion (31) of the terminal (3).

4. An electric energy meter according to claim 3, characterized in that: the second part (12) comprises

A first section (121) connected to a front end of the first portion (11) and extending rearward;

a second section (122) extending upwardly and rearwardly from the rear end of the first section (121).

5. The electric energy meter of claim 4, wherein: the second part (12) further comprising

A third section (123) connected to the rear end of the second section (122), the third section (123) extending downward and forward;

and the fourth section (124) extends upwards and forwards from the front end of the third section (123), and the position where the fourth section (124) is connected with the third section (123) is used for downwards interference fit with the upper surface of the first part (11).

6. The electric energy meter of claim 5, wherein: the second section (122), the third section (123) and/or the fourth section (124) are made of elastic materials.

7. The electric energy meter of claim 4, wherein: the second section (122) has a central portion with upwardly extending ribs (1221).

8. An electric energy meter according to claim 3, characterized in that: the metal connector (1) further comprises a pin (14) extending downwards from the first part (11), and the pin (14) is plugged with the circuit board (2).

9. An electric energy meter according to claim 3, characterized in that: the metal connecting piece (1) further comprises a third part (13) extending upwards from the first part (11), the third part (13) is provided with a through hole (131) penetrating in the left-right direction, and the second part (12) is provided with a lug (12a) extending into the through hole (131).

10. An electric energy meter according to any one of claims 1 to 9, characterized in that: the shell (200) comprises a bottom shell (4), an end button box (5) integrally formed with the bottom shell (4), and a housing (6) located above the bottom shell (4) and connected with the bottom shell (4), wherein the housing (6) and the wiring terminal (3) are integrally formed.

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