CN211122969U

CN211122969U - Electric energy meter

Info

Publication number: CN211122969U
Application number: CN201920987052.0U
Authority: CN
Inventors: 唐健; 魏伟; 林国庆
Original assignee: Ningbo Sanxing Electric Co Ltd
Current assignee: Ningbo Sanxing Electric Co Ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-07-28
Anticipated expiration: 2029-06-27

Abstract

The utility model relates to an electric energy meter, which comprises a base and a meter cover, wherein a concave cavity for accommodating a communication module is formed on the local part of a front wall plate of the meter cover towards the direction of the base, a cover plate for covering the concave cavity is arranged on the front wall plate of the meter cover, the cover plate rotates by taking one side edge which is adjacent to and parallel to the concave cavity as an axis to open or close the concave cavity, and a first end of the cover plate along the axial direction of the rotating axis of the cover plate is rotatably arranged on the corresponding side wall of the concave cavity; the apron is provided with the projection along the axial direction's of its axis of rotation second end and makes this projection have all the time along the axial direction of axis of rotation to keeping away from the elastic component of first end direction removal trend, and the slot has been seted up to the cavity on the position that corresponds the projection, and the second end of apron sets up on the corresponding lateral wall of cavity through the normal running fit of projection and slot. The utility model discloses a simple to operate of apron prevents that the condition that the apron made the damage from appearing in rigid installation.

Description

Electric energy meter

Technical Field

The utility model relates to an electric energy meter technical field, concretely relates to electric energy meter with cavity for holding communication module.

Background

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

The current ammeter is like chinese utility model patent "a single-phase local cost accuse intelligent ammeter carrier housing" that patent number is CN201120112880.3 (the publication number of granting is CN202119816U), has the recess of holding module box on the table lid of this shell, and edge one side of this table lid is equipped with and to cover lower flip (apron) of establishing on the recess, and lower flip passes through the hinge and is connected with the edge of table lid. For example, in the chinese utility model patent No. CN201620017643.1 (publication No. CN205484451U), the cover of the electric energy meter is hinged with a lower cover at a position corresponding to the liquid crystal window.

Flip and table lid all adopt articulated form in the above-mentioned patent, but when actual assembly, the looks normal running fit's between lower flip and the table lid rotating-structure need rigid link together, can cause certain damage to rotating-structure when installation and dismantlement, produces certain mar to the table lid at rigid link or rigid dismantlement's in-process simultaneously, and it is inconvenient to have increased the installation.

Therefore, further improvements to existing electricity meters are needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the current situation of above-mentioned prior art, provide one kind and prevent hard installation simultaneously and make the electric energy meter that the apron damaged in the apron installation of being convenient for.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides an electric energy meter, establishes the table lid on the base including base and lid, the local concave cavity that is formed with the holding communication module of preceding wallboard of table lid to the base direction is sunken, and is provided with on the preceding wallboard of this table lid and covers the apron of cavity, its characterized in that: the cover plate rotates by taking one side edge which is adjacent to and parallel to the cavity as an axis to open or close the cavity, and the first end of the cover plate in the axial direction of the rotation axis of the cover plate is rotatably arranged on the corresponding side wall of the cavity; the cover plate is provided with a convex column and an elastic piece which enables the convex column to have a trend of moving towards the direction far away from the first end along the axial direction of the rotation axis all the time, the concave cavity is provided with a slot at the position corresponding to the convex column, and the second end of the cover plate is arranged on the corresponding side wall of the concave cavity through the rotating fit of the convex column and the slot.

In order to prevent the cover plate from being pried when the cover plate is in a mounted state, a stepped groove for accommodating the cover plate is formed in the periphery of the concave cavity, and in a state that the cover plate is mounted in the stepped groove, the outer side wall of the cover plate, which is adjacent to the position of the rotating axis, is in contact with the corresponding inner wall of the stepped groove; or a gap for limiting the insertion of a tool is formed between the outer side wall of the cover plate adjacent to the position of the rotating axis and the stepped groove.

In order to limit the elastic piece to move along the axial direction perpendicular to the rotation axis, a spring hole for accommodating the elastic piece is formed in the position, corresponding to the elastic piece, of the cover plate, one end of the elastic piece is connected with the end wall of the spring hole, and the other end of the elastic piece is connected with the convex column. Like this, the elastic component holding is in the spring hole, can carry on spacingly to other directions except the axial direction of axis of rotation for the elastic component makes the projection remove along the axial direction of axis of rotation better.

In order to realize the installation of the cover plate, the left side part of the cover plate is rotatably and detachably arranged in the concave cavity by taking the left side edge parallel to the concave cavity as an axis, and the right side part of the cover plate is installed on the watch cover through a lead seal.

In order to realize that the lower extreme of apron left part corresponds the rotation of lateral wall with the cavity and is connected, the projection sets up the upper end at apron left part, the lower extreme of apron left part with all be provided with rotation fit's each other pivot and shaft hole between the lateral wall that the cavity corresponds the side, the lower extreme of apron is connected through the rotation fit in pivot and shaft hole in the cavity.

In order to facilitate the installation of the elastic part, the elastic part is a spring, the rotating shaft is provided with a spring hole for accommodating the spring, one end of the spring is abutted against the end wall of the slot, and the other end of the spring is abutted against the end wall of the spring hole.

In order to realize the fixed connection between the cover plate and the meter cover, the right side part of the cover plate and the meter cover are correspondingly provided with mounting holes for the lead sealing piece to be mounted from front to back, and the cover plate is provided with holes which correspond to the lead sealing holes on the lead sealing piece and through which lead sealing lines of the lead sealing piece pass.

In order to conveniently install the battery box and conveniently locate the battery box, the battery box is arranged in the cavity, the inner wall of the cover plate is provided with a positioning plate, and the free end of the positioning plate is abutted against the corresponding position of the battery box when the cover plate is covered on the cavity.

In order to further facilitate the installation and the positioning of the battery box, a mounting groove for accommodating the battery box is formed in the cavity, and a positioning piece for limiting the battery box is arranged in the mounting groove.

The structure form of setting element has the multiple, preferably, the setting element is the rib that sets up in the mounting groove, the rib has two at least, and is located respectively the both ends of battery case install in under the state in the mounting groove, wherein one end of battery case offsets with corresponding rib.

In order to conveniently realize the connection of the battery and the circuit board, the circuit board is arranged in a space enclosed by the base and the meter cover, the battery is arranged in the battery box, and an opening which is convenient for the connection of the battery and the circuit board is arranged in the mounting groove.

Preferably, a plug capable of passing through the opening is connected to the battery, and the battery is connected to the circuit board through the plug.

In order to avoid the electric elements on the circuit board conveniently, the communication module in the concave cavity is provided with an avoiding groove which avoids the electric elements on the circuit board at one side adjacent to the circuit board.

Compared with the prior art, when the cover plate is installed, one end of the cover plate is rotatably connected to the corresponding side wall of the cavity when the cover plate is installed, then the convex column is compressed, the end of the cover plate with the convex column is installed in the cavity, and the convex column is inserted into the slot under the action of the elastic piece, so that the installation of the whole cover plate is realized, the installation of the cover plate is convenient, and the cover plate is prevented from being damaged due to rigid installation; in addition, in the state that the cover plate is installed, the outer side wall of the cover plate, which is adjacent to the position of the rotating axis, is in contact with the corresponding inner wall of the stepped groove or a gap for preventing an external tool from being inserted is formed between the outer side wall of the cover plate, which is adjacent to the position of the rotating axis, and the corresponding inner wall of the stepped groove, so that the external tool is prevented from being inserted into the gap between the outer side wall of the cover plate, which is adjacent to the position of the rotating; and the whole ammeter has reasonable structural design, convenience and practicability.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 with the end cap and cover plate removed;

FIG. 3 is a schematic view of a portion of the structure of FIG. 2;

FIG. 4 is a schematic perspective exploded view of FIG. 3;

FIG. 5 is a cross-sectional view of FIG. 1;

fig. 6 is a schematic structural view of the embodiment of the present invention in which the end cap and the cover plate are in an open state;

FIG. 7 is a cross-sectional view at another angle from FIG. 1;

fig. 8 is a schematic structural diagram of a cover plate according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a base according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a watch cover according to an embodiment of the present invention.

Detailed Description

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

As shown in fig. 1 to 10, the electric energy meter of the embodiment of the present invention includes a base 1, a connector 52, a circuit board 8 and a meter cover 2 covering the base 1, wherein the base 1 is provided with an end button box 11, and the meter cover 2 is provided with an end cover 3 covering the end button box 11 at a position corresponding to the end button box 11.

As shown in fig. 2 and 6, a cavity 21 for accommodating the communication module 5 is formed by partially recessing the front wall of the cover 2 in the direction of the base 1, and the communication module 5 is disposed in the cavity 21. In order to realize the connection between the communication module 5 and the external antenna, as shown in fig. 2 to fig. 4, a connector 51 is disposed on the outer housing of the communication module 5, a connector 52 is disposed on the bezel 2 and is used to connect the external antenna 53, the connector 52 has a first terminal 521 connected to the connector 51 and a second terminal 522 connected to the external antenna 53, and the second terminal 522 of the connector 52 is connected to the external antenna 53 through an adapter 54. The second terminal 522 of the connector 52 in this embodiment is disposed on the wall of the cavity adjacent to the side of the terminal box 11, and since the terminal box 11 is located below the cavity 21, the lower wall of the cavity is opened with a mounting hole 211 for mounting the second terminal 522, and the second terminal 522 is mounted on the lower wall of the cavity, as shown in fig. 10.

In this embodiment, the base 1 has an accommodating space 1c for accommodating the terminal box 11 at a position adjacent to the lower end, and the terminal box 11 is disposed in the accommodating space 1c, as shown in fig. 7. In addition, as shown in fig. 3, 4 and 9, an accommodating groove 11a for conveniently accommodating the external antenna 53 is formed in the terminal box 11, a through hole 11b for the external antenna 53 to pass through is formed at the lower portion of the terminal box 11, and the accommodating groove 11a and the through hole 11b are arranged correspondingly, as shown in fig. 4; when the external antenna 53 is mounted on the second end 522, the external antenna 53 is partially located in a space enclosed by the end cover 3 and the terminal box 11, and the end cover 3 is provided with a through hole for the external antenna 53 to pass through at a position corresponding to the through hole 11 b. The circuit board 8 is disposed in a space defined by the base 1 and the cover 2, and the communication module 5 has a recess 50 adjacent to the circuit board 8 for receiving an electrical component on the circuit board 8, as shown in fig. 5.

As shown in fig. 5 and 6, a cover plate 4 covering the cavity 21 is disposed on the front wall plate of the watch case 2, the cover plate 4 rotates around one side edge adjacent to and parallel to the cavity 21 as an axis to open or close the cavity 21, a stepped groove 23 for accommodating the cover plate 4 is formed in the periphery of the cavity 21, and in a state where the cover plate 4 is mounted in the stepped groove 23, an outer side wall of the cover plate 4 adjacent to the rotation axis contacts with a corresponding inner wall of the stepped groove 23; or a gap for limiting the insertion of a tool is arranged between the outer side wall of the cover plate 4 adjacent to the position of the rotation axis and the corresponding inner wall of the stepped groove 23; thereby preventing external instrument from inserting between the corresponding inner wall of the outer wall of the apron 4 near the axis of rotation position and ladder groove 23, preventing apron 4 from being pried open, thus reached the purpose of preventing stealing electricity.

As shown in fig. 5, the cover plate 4 is rotatably disposed on the corresponding side wall of the cavity 21 along the first end in the axial direction of the rotation axis thereof; the cover plate 4 is provided with a convex column 44 and an elastic piece 6 which always enables the convex column 44 to have a trend of moving towards the direction far away from the first end along the axial direction of the rotation axis, the cavity 21 is provided with a slot 212 at the position corresponding to the convex column 44, the slot 212 is arranged on the inner side wall of the stepped groove 23, and the second end of the cover plate 4 is arranged on the corresponding side wall of the cavity 21 through the rotating fit of the convex column 44 and the slot 212. Specifically, the cover plate 4 is provided with a spring hole 41 for accommodating the elastic element 6 at a position corresponding to the elastic element 6, one end of the elastic element 6 is connected with an end wall of the spring hole 41, the other end of the elastic element 6 is connected with a convex pillar 44, when the cover plate 4 is accommodated in the stepped groove 23, one end of the elastic element 6 abuts against the end wall of the spring hole 41, and the convex pillar 44 abuts against an end wall of the slot 212 under the action of the elastic element 6. The spring hole of this embodiment is in the form of a hole slot open at one end.

In this embodiment, as shown in fig. 1, the left side portion of the cover plate 4 is rotatably and detachably disposed in the cavity 21 with the left side parallel to the cavity 21 as an axis, and the right side portion of the cover plate 4 is attached to the bezel 2 by the lead seal 45. As shown in fig. 5, the protruding column 44 is disposed at the upper end of the left side portion of the cover plate 4, a rotating shaft 42 and a shaft hole 213 which are rotatably engaged with each other are disposed between the lower end of the left side portion of the cover plate and the side wall of the corresponding side of the cavity 21, and the lower end of the cover plate 4 is connected in the cavity 21 by the rotating engagement of the rotating shaft 42 and the shaft hole 213. Specifically, the lower end of the cover plate 4 is provided with a rotating shaft 42, correspondingly, the cavity 21 is provided with a shaft hole 213 on the side wall corresponding to the rotating shaft 42, and the lower end of the cover plate 4 is disposed in the shaft hole 213 through the rotating fit of the rotating shaft 42 and the shaft hole 213. The cover plate 4 and the right side part of the watch cover 2 are correspondingly provided with mounting holes 40 for the lead sealing piece 45 to be mounted from front to back, the cover plate 4 is provided with an opening 400 which corresponds to the lead sealing hole on the lead sealing piece 45 and through which a lead sealing line of the lead sealing piece 45 passes, and the lead sealing line of the lead sealing piece 45 sequentially passes through the opening 400 and the lead sealing hole of the lead sealing piece 45 to mount the cover plate 4 on the watch cover 2.

When the cover plate is installed, the rotating shaft 42 at one end of the cover plate 4 is inserted into the shaft hole 213, then the convex column 44 is compressed, and the convex column 44 of the cover plate 4 is installed in the slot 212 of the stepped groove 23, so that the installation of the whole cover plate is realized, and the installation of the cover plate 4 is convenient; under the state that the installation of apron 4 finishes, the lateral wall that apron 4 is close to the axis of rotation position contacts with the inner wall of the correspondence of ladder groove 23 or has the clearance that restriction instrument male between the lateral wall that apron 4 is close to the axis of rotation position and the inner wall of the correspondence of ladder groove 23, like this, prevent that external instrument from inserting between the lateral wall that apron 4 is close to the axis of rotation position and the inner wall of the correspondence of ladder groove 23, thereby prevented apron 4 from being prized open, and reached the anti-electricity-theft purpose of electric energy meter.

As shown in fig. 10, the cavity 21 has a mounting groove 210 therein, the mounting groove 210 is located on one side of the communication module 5, the battery box 7 is located in the mounting groove 210, as shown in fig. 6 and 7, the inner wall of the cover plate 4 is provided with at least two positioning plates 43, the number of the positioning plates 43 in this embodiment is three, three positioning plates 43 are formed in an H shape, and the free ends of the positioning plates 43 abut against corresponding positions of the battery box 7 in a state where the cover plate 4 is covered on the cavity 21. In addition, a positioning member for positioning the battery case 7 is provided in the mounting groove 210. As shown in fig. 7 and 10, the positioning member of this embodiment is a rib 2101 disposed in the installation slot 210, at least two ribs 2101 are respectively disposed at two ends of the battery box 7, and in a state where the battery box 7 is installed in the installation slot 210, one end of the battery box 7 abuts against the corresponding rib 2101. The battery box 7 is internally provided with a battery 71, the battery 71 is connected with a plug 72, and an opening 2102 for connecting the battery 71 and the circuit board 8 is arranged in the mounting groove 210 in order to realize the connection of the battery box and the circuit board. Specifically, the battery 71 is connected to the circuit board 8 by inserting the plug 72 through the opening 2102 and onto the circuit board 8.

Claims

1. The utility model provides an electric energy meter, establishes table lid (2) on base (1) including base (1) and lid, the preceding wallboard of table lid (2) is local to base (1) orientation sunken be formed with cavity (21) with holding communication module (5), and is provided with on the preceding wallboard of this table lid (2) and covers apron (4) of cavity (21), its characterized in that: the cover plate (4) rotates by taking one side edge adjacent to and parallel to the cavity (21) as an axis to open or close the cavity (21), and a first end of the cover plate (4) in the axial direction of the rotation axis of the cover plate is rotatably arranged on the corresponding side wall of the cavity (21); the cover plate is characterized in that a convex column (44) and an elastic piece (6) which enables the convex column (44) to move towards the direction far away from the first end along the axial direction of the rotation axis are arranged at the second end of the cover plate (4) along the axial direction of the rotation axis, a slot (212) is formed in the position of the concave cavity (21) corresponding to the convex column (44), and the second end of the cover plate (4) is arranged on the corresponding side wall of the concave cavity (21) through the rotating fit of the convex column (44) and the slot (212).

2. The electric energy meter of claim 1, wherein: a stepped groove (23) for accommodating the cover plate (4) is formed in the periphery of the concave cavity (21), and in the state that the cover plate (4) is installed in the stepped groove (23), the outer side wall, close to the rotation axis, of the cover plate (4) is in contact with the corresponding inner wall of the stepped groove (23); or a gap for limiting the insertion of a tool is arranged between the outer side wall of the cover plate (4) adjacent to the position of the rotating axis and the stepped groove (23).

3. The electric energy meter of claim 1, wherein: the cover plate (4) is provided with a spring hole (41) for accommodating the elastic piece (6) at a position corresponding to the elastic piece (6), one end of the elastic piece (6) is connected with the end wall of the spring hole (41), and the other end of the elastic piece (6) is connected with the convex column (44).

4. An electric energy meter according to any one of claims 1 to 3, characterized in that: the left side of apron (4) with be on a parallel with the left side of cavity (21) is the axis rotation ground and can set up with dismantling in cavity (21), the right side of apron (4) is installed through lead sealing spare (45) on table lid (2).

5. The electric energy meter of claim 4, wherein: projection (44) set up in the upper end of apron (4) left part, the lower extreme of apron (4) left part with all be provided with rotation fit's each other pivot (42) and shaft hole (213) between the lateral wall that cavity (21) corresponds the side, the lower extreme of apron (4) is connected through the rotation fit of pivot (42) and shaft hole (213) in cavity (21).

6. The electric energy meter of claim 4, wherein: the right side part of the cover plate (4) and the meter cover (2) are correspondingly provided with mounting holes (40) for the lead sealing pieces (45) to be mounted from front to back, and the cover plate (4) is provided with holes (400) which correspond to the lead sealing holes in the lead sealing pieces (45) and through which lead sealing lines of the lead sealing pieces (45) pass.

7. The electric energy meter of claim 1, wherein: the battery box (7) is arranged in the concave cavity (21), the positioning plate (43) is arranged on the inner wall of the cover plate (4), and the free end of the positioning plate (43) is abutted against the corresponding position of the battery box (7) when the cover plate (4) is covered on the concave cavity (21).

8. The electric energy meter of claim 7, wherein: the battery box is characterized in that a mounting groove (210) for accommodating the battery box (7) is formed in the cavity (21), and a positioning piece for limiting the battery box (7) is arranged in the mounting groove (210).

9. The electric energy meter of claim 8, wherein: the battery box is characterized in that the positioning pieces are ribs (2101) arranged in the mounting groove (210), at least two ribs (2101) are arranged at two ends of the battery box (7), and one end of the battery box (7) is abutted to the corresponding rib (2101) in the state that the battery box (7) is mounted in the mounting groove (210).

10. The electric energy meter of claim 8, wherein: a circuit board (8) is arranged in a space enclosed by the base (1) and the meter cover (2), a battery (71) is arranged in the battery box (7), and an opening (2102) which is convenient for the battery (71) to be connected with the circuit board (8) is formed in the mounting groove (210).

11. The electrical energy meter of claim 10, wherein: a plug (72) which can penetrate through the opening (2102) is connected to the battery (71), and the battery (71) is connected with the circuit board (8) through the plug (72).

12. The electrical energy meter of claim 10, wherein: the communication module (5) in the cavity (21) is provided with a yielding groove (50) which is adjacent to one side of the circuit board (8) and is used for yielding the electric elements on the circuit board (8).