CN209803207U

CN209803207U - Ammeter with relay

Info

Publication number: CN209803207U
Application number: CN201822267226.4U
Authority: CN
Inventors: 吴永辉; 陈欢
Original assignee: Ningbo Sanxing Smart Electric Co Ltd
Current assignee: Ningbo Sanxing Smart Electric Co Ltd
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2019-12-17
Anticipated expiration: 2028-12-29

Abstract

The utility model relates to an ammeter with relay, establish the table lid on the base including base and lid, be provided with relay, its characterized in that on the base: the meter cover is provided with an assembly groove for containing the communication module, the bottom wall of the assembly groove is provided with a hole for facilitating the electric connector of the communication module to penetrate out, the base is provided with a switching PCB which can be electrically connected with the relay, the switching PCB is provided with a conductive part which can be connected with the electric connector, and the switching PCB is electrically connected with the communication module through the matching of the conductive part and the electric connector. Compared with the prior art, the utility model has the advantages of: when need switch into the smart meter promptly, only need be at the assembly groove installation communication module, this communication module conveniently can get the electricity to the relay through the switching PCB board, provides convenience for follow-up switching becomes the smart meter.

Description

Ammeter with relay

Technical Field

The utility model relates to an electric energy meter technical field, concretely relates to ammeter with relay.

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.

Current electric energy meter, like the chinese utility model patent "a three-phase anti-electricity-theft electric energy meter" that patent number is CN200720038502.9 (the grant bulletin number is CN201083783Y), this electric energy meter includes drain pan, the table lid, the second PCB board, current transformer, the second PCB board, public terminal box, insulating threading pipe etc. there is the entrance hole top face of drain pan, there is public terminal box bottom the drain pan inner chamber, there is insulating threading pipe between public terminal box and the entrance hole, current transformer wears on insulating threading pipe, the ammeter inlet wire passes insulating threading pipe from the entrance hole and inserts public terminal box, the ammeter is qualified for the next round of competitions and directly inserts public terminal box. The electric energy meter disclosed in the patent is only used as a common meter, when an intelligent meter is needed, an additional intelligent meter is needed, the switching of the common meter and the intelligent meter cannot be well realized, and the use is inconvenient.

therefore, further improvements to existing electric energy 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 a convenient switching into smart meter, and the communication module in the convenient follow-up smart meter gets the ammeter that has a relay of electricity.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides an ammeter with relay, establishes the table lid on the base including base and lid, be provided with relay, its characterized in that on the base: the meter cover is provided with an assembly groove for containing the communication module, the bottom wall of the assembly groove is provided with a hole for facilitating the electric connector of the communication module to penetrate out, the base is provided with a switching PCB which can be electrically connected with the relay, the switching PCB is provided with a conductive part which can be connected with the electric connector, and the switching PCB is electrically connected with the communication module through the matching of the conductive part and the electric connector.

In order to realize the support of the switching PCB, the base is provided with at least two supporting plates for supporting the switching PCB, and the top surfaces of the supporting plates are positioned on the same plane.

In order to realize the fixation of the switching PCB, the base is provided with buckles for clamping and fixing the switching PCB, and the buckles are at least two and are respectively positioned at two opposite sides of the switching PCB.

In order to realize the positioning of the switching PCB, the base is provided with a positioning column, correspondingly, a positioning hole matched with the positioning column is formed in the switching PCB, the positioning column is inserted into the positioning hole when the switching PCB is in an assembled state, and the top surface of the supporting plate is abutted against the bottom surface of the switching PCB.

Specifically, a circuit board is arranged on the base, the relay is located below the circuit board and electrically connected with the circuit board, and a support used for placing liquid crystal is arranged on the circuit board.

The bracket is used for supporting the liquid crystal on one hand and is matched with the button on the other hand so as to realize the work of the button, the button is arranged on the watch cover, the bracket is provided with an extension pin extending downwards at a position corresponding to the button, the bottom of the extension pin is provided with a carbon film electrically connected with a contact on the circuit board, and the carbon film at the bottom of the extension pin is electrically connected with the contact on the circuit board when the button is in a pressed state.

in order to facilitate connection of the wiring terminal in the terminal box and the wiring terminal in the terminal box, the terminal box is arranged on the base, the relay is provided with a wiring terminal connected with the wiring terminal in the terminal box, and the wiring terminal is located below the switching PCB. Therefore, the interference of the lug on the connection between the subsequent switching PCB and the communication module is avoided, and the structure is more compact.

In order to conveniently realize the positioning of the lug plate, the base is provided with a positioning groove, and the lug plate part is positioned in the corresponding positioning groove.

The positioning groove can be realized in various ways, and preferably, at least two pairs of oppositely arranged limiting plates are arranged on the base, wherein the positioning groove is formed between the pairwise arranged limiting plates.

Preferably, one side of the terminal box adjacent to the circuit board has a step part, and the adapting PCB is disposed on the step part. In this way, the entire electric meter structure is made more compact.

compared with the prior art, the utility model has the advantages of: set up the assembly groove that is useful with holding communication module on this table lid of ammeter with relay, set up the trompil that makes things convenient for communication module's electric connector to wear out on the diapire of assembly groove, be provided with the switching PCB board that can be connected with the relay electricity on the base, be provided with the conductive part that can be connected with communication module's electric connector on this switching PCB board, when needing to switch to the smart meter promptly, only need install communication module in the assembly groove, this communication module conveniently can get the electricity to the relay through the switching PCB board, provide convenience and basis for follow-up switching to the smart meter, its practicality is strong.

Drawings

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

Fig. 2 is a schematic structural diagram of a watch cover according to an embodiment of the present invention;

FIG. 3 is a schematic view of the structure of FIG. 2 at another angle;

Fig. 4 is a partial schematic structural diagram of an embodiment of the present invention;

FIG. 5 is a schematic view of a portion of the structure of FIG. 4;

Fig. 6 is a cross-sectional view of an embodiment of the invention;

Fig. 7 is a cross-sectional view of another angle of 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 7, an electric meter with a relay according to an embodiment of the present invention includes a base 1 and a cover 2 covering the base 1, the base 1 is provided with a relay 3, a circuit board 5 and an end button box 7, wherein the cover 2 is provided with an assembly groove 21 for accommodating a communication module, a bottom wall of the assembly groove 21 is provided with an opening 211 for allowing an electrical connector of the communication module to pass through, the base 1 is provided with a transfer PCB 4 electrically connected to the relay 3, the transfer PCB 4 is provided with a conductive portion 41 connected to the electrical connector, the transfer PCB 4 is electrically connected to the communication module through the cooperation of the conductive portion 41 and the electrical connector, the electrical connector of the communication module may be in various forms, and may be welded to the transfer PCB in the form of a contact pin, or in other forms as long as it can be electrically connected to a subsequent transfer PCB, in addition, as shown in fig. 1, the cover plate 23 is detachably disposed on the assembly groove 21, that is, when the smart meter needs to be switched to, only the communication module needs to be placed in the assembly groove 21, and the electrical connection member on the communication module penetrates out through the corresponding opening 211 and is connected to the adapting PCB electrically connected to the relay.

as shown in fig. 4 and 5, one side of the terminal box 7 adjacent to the circuit board 5 has a step portion 71, the adapting PCB 4 is disposed on the step portion 71, specifically, the base 1 is provided with at least two support plates 11 for supporting the adapting PCB 4, and top surfaces of the support plates 11 are located on the same plane; and the base 1 is provided with a positioning column 13, correspondingly, the adapting PCB 4 is provided with a positioning hole (not marked) matched with the positioning column 13, when the adapting PCB 4 is in the assembled state, the positioning column 13 is inserted into the positioning hole, and the top of the supporting plate 11 is abutted against the bottom surface of the adapting PCB 4.

In order to fix the adapting PCB, as shown in fig. 5, the base 1 has at least two fasteners 12 for fastening and fixing the adapting PCB 4, and the fasteners 12 are respectively located at two opposite sides of the adapting PCB 4.

As shown in fig. 6 and 7, in the present embodiment, the relay 3 is located below the circuit board 5 and electrically connected to the circuit board 5, and the relay is electrically connected to the circuit board 5 in various ways, and the electrical connection may be achieved through a wire or in other ways, and in addition, the circuit board 5 is provided with a bracket 6 for placing the liquid crystal 60. The arrangement in which the push button 22 is provided on the cover 2, the extension leg 61 extending downward is provided on the holder 6 at a position corresponding to the push button 22, and the top of the extension leg 61 is connected to the bottom of the push button 22 in the assembled state of the push button 22 increases the space between the circuit board 5 and the cover 2 for accommodating the electric components, and further, the bottom of the extension leg 61 has a carbon film 611 electrically connected to the contacts on the circuit board 5, and the carbon film 611 on the bottom of the extension leg 61 is electrically connected to the contacts on the circuit board 5 in the pressed state of the push button 22, so that the push button 22 operates. The bezel 2 of the present embodiment has a light-transmitting portion 24 at a position corresponding to the liquid crystal 60.

As shown in fig. 4 and 7, the relay 3 in this embodiment has a terminal 31 connected to a terminal (not shown) in the terminal box 7, the terminal 31 is located below the adapting PCB 4, specifically, the step portion 71 of the base 1 is provided with a positioning slot 15, and the terminal 31 is partially located in the corresponding positioning slot 15. The positioning slot 15 can be formed in various ways, and can be supported on the step portion 71 to be slotted, or in other ways, in this embodiment, at least two pairs of oppositely arranged limiting plates 16 are provided on the base 1, wherein the positioning slot 15 is formed between the pairs of oppositely arranged limiting plates 16.

In order to protect the terminal box, an end cover 8 is disposed on the base 1 at a position located on the terminal box 7, and the end cover 8 is located above the terminal box 7.

In this embodiment, mainly for protecting the structural relationship between the components in the electric meter, the circuit connection manner related in the electric meter is similar to that of the existing electric meter, and details will not be described in detail in this embodiment.

Claims

1. The utility model provides an ammeter with relay, establishes table lid (2) on base (1) including base (1) and lid, be provided with relay (3) on base (1), its characterized in that: offer assembly groove (21) for the holding communication module on table lid (2), offer trompil (211) that make things convenient for communication module's electric connector to wear out on the diapire of assembly groove (21), be provided with on base (1) and can be connected with relay (3) electricity switching PCB board (4), be provided with on switching PCB board (4) and can be connected with electric connector conductive part (41), switching PCB board (4) are connected with communication module electricity through the cooperation of conductive part (41) and electric connector.

2. An electricity meter with a relay according to claim 1, characterized in that: the PCB switching device is characterized in that supporting plates (11) used for supporting the switching PCB (4) are arranged on the base (1), at least two supporting plates (11) are arranged, and the top surfaces of the supporting plates (11) are located on the same plane.

3. An electricity meter with a relay according to claim 2, characterized in that: the base (1) is provided with buckles (12) for clamping and fixing the switching PCB (4), and the buckles (12) are at least two and are respectively positioned on two opposite sides of the switching PCB (4).

4. An electricity meter with a relay according to claim 2, characterized in that: the base (1) is provided with a positioning column (13), correspondingly, a positioning hole matched with the positioning column (13) is formed in the switching PCB (4), the positioning column (13) is inserted into the positioning hole when the switching PCB (4) is in an assembled state, and the top surface of the supporting plate (11) is abutted to the bottom surface of the switching PCB (4).

5. An electricity meter with a relay according to claim 1, characterized in that: the liquid crystal display is characterized in that a circuit board (5) is arranged on the base (1), the relay (3) is located below the circuit board (5) and is electrically connected with the circuit board (5), and a support (6) used for placing liquid crystals (60) is arranged on the circuit board (5).

6. An electricity meter with a relay according to claim 5, characterized in that: the watch cover (2) is provided with a button (22), the support (6) is provided with an extension pin (61) extending downwards at a position corresponding to the button (22), the bottom of the extension pin (61) is provided with a carbon film (611) electrically connected with a contact on the circuit board (5), and the carbon film (611) at the bottom of the extension pin (61) is electrically connected with the contact on the circuit board (5) when the button (22) is in a pressed state.

7. An electricity meter with a relay according to any of claims 1 to 6, characterized in that: be provided with terminal button box (7) on base (1), relay (3) have with terminal connection's in terminal button box (7) lug (31) that link to each other, lug (31) are located the below of switching PCB board (4).

8. An electricity meter with a relay according to claim 7, characterized in that: be provided with constant head tank (15) on base (1), lug (31) part is located corresponding constant head tank (15).

9. An electricity meter with a relay according to claim 8, characterized in that: the base (1) is provided with at least two pairs of oppositely arranged limiting plates (16), wherein the positioning grooves (15) are formed between the limiting plates (16) arranged in pairs.

10. An electricity meter with a relay according to claim 8, characterized in that: one side of the terminal box (7) adjacent to the circuit board (5) is provided with a step part (71), and the switching PCB (4) is arranged on the step part (71).