CN210835012U - Single-phase electric energy meter - Google Patents
Single-phase electric energy meter Download PDFInfo
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- CN210835012U CN210835012U CN201921379505.8U CN201921379505U CN210835012U CN 210835012 U CN210835012 U CN 210835012U CN 201921379505 U CN201921379505 U CN 201921379505U CN 210835012 U CN210835012 U CN 210835012U
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- circuit board
- box
- relay
- electric energy
- energy meter
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Abstract
The utility model relates to a single-phase electric energy meter, including table box, the circuit board of setting in the table box and be used for connecting the inlet wire or the inlet wire box and the outlet box of being qualified for the next round of competitions, inlet wire box and outlet box on set up live wire wiring end, zero line wiring end respectively, first relay is connected to the electricity between the live wire wiring end of inlet wire box and outlet box, the second relay is connected to the electricity between the zero line wiring end of inlet wire box and outlet box. The utility model discloses a setting of two relays for the circuit board is more reliable.
Description
Technical Field
The utility model relates to a single-phase electric energy meter.
Background
The electric energy meter is an instrument for measuring electrical parameters in a circuit, and in a single-phase electric energy meter, only one relay is generally arranged between an incoming line and an outgoing line and is arranged on a live wire, and the on-off of the relay can be realized, but if the relay is damaged, the corresponding function cannot be realized.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides a more reliable single-phase electric energy meter.
The utility model discloses a following technical scheme realizes:
the utility model provides a single-phase electric energy meter, includes the table box, sets up the circuit board in the table box and is used for connecting the incoming line or the incoming line box and the outlet box of being qualified for the next round of competitions, incoming line box and outlet box on set up live wire terminal, zero line terminal respectively, first relay is connected to the electricity between the live wire terminal of incoming line box and outlet box, the second relay is connected to the electricity between the zero line terminal of incoming line box and outlet box.
Preferably, the circuit board comprises a first circuit board and a second circuit board, the first circuit board and the second circuit board are arranged in parallel relatively, the first circuit board is provided with a contact pin, the second circuit board is provided with a socket, the first circuit board and the second circuit board are inserted into the socket through the contact pin to realize electric connection, and the first relay and the second relay are respectively arranged on the first circuit board and the second circuit board.
Preferably, the first relay and the second relay are fixed on adjacent sides of the first circuit board and the second circuit board.
Preferably, the first circuit board or the second circuit board is provided with a communication module, pins of the communication module are in a pin shape, and the first circuit board or the second circuit board is provided with a pin socket for inserting and electrically connecting the pins.
Preferably, the watch box comprises a base and a cover plate, welding ribs are arranged on the edges of the base and the cover plate, and the cover plate is fixed on the base in an ultrasonic welding mode.
Preferably, the welding rib on the edge of the base and the welding rib on the edge of the cover plate are arranged in a position complementary to each other.
The relays are arranged on the zero line and the live line respectively, and when one relay is disconnected and fails, the relay can be disconnected through the other relay, so that the relay is more reliable. In order to reduce the volume of the single-phase electric energy meter, the circuit boards are arranged into the first circuit board and the second circuit board, so that the space in the meter box is fully utilized, the first circuit board and the second circuit board are oppositely arranged and are directly and mutually inserted through the contact pins and the socket, the electric connection is realized, the mechanical connection between the first circuit board and the second circuit board is also realized, and the stability is relatively realized. The first relay and the second relay are respectively arranged on the adjacent sides of the first circuit board and the second circuit board. Different customers have different demands to communication function, when current production, will produce the electric energy meter of different models, and production efficiency is low, in this application, sets up the communication module pin and inserts the needle-like, sets up the pin socket on the circuit board, then can peg graft different communication module according to different needs, in process of production, produces the same circuit board, carries out different communication module's setting according to the different demands of customer again, has improved production efficiency. And the communication module is not easy to replace after being damaged, and the whole circuit board is not required to be replaced, but the corresponding communication module is directly replaced.
The beneficial effects of the utility model reside in that: the utility model discloses a setting of two relays for the circuit board is more reliable.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the internal structure of fig. 1.
Fig. 3 is a schematic structural view of the cover plate.
Detailed Description
The following provides a more detailed description of the present invention with reference to the accompanying drawings and detailed description.
As shown in figures 1, 2 and 3, the single-phase electric energy meter comprises a meter box 13, a circuit board arranged in the meter box, and a line inlet box 3 and a line outlet box 5 which are used for connecting an inlet line or an outlet line, wherein the line inlet box and the line outlet box are respectively provided with a live wire terminal 4 and a zero wire terminal 6, a first relay 2 is electrically connected between the live wire terminals of the line inlet box and the line outlet box, and a second relay 7 is electrically connected between the zero wire terminals of the line inlet box and the line outlet box. The circuit board includes first circuit board 1, second circuit board 8, and first circuit board, second circuit board set up side by side relatively, set up contact pin 10 on the first circuit board, set up socket 9 on the second circuit board, and first circuit board, second circuit board insert through the contact pin realize the electricity connection in the socket, and first relay 2, second relay 7 set up respectively on first circuit board 1, second circuit board 8, and are fixed in respectively on the adjacent side. The first circuit board or the second circuit board is provided with a communication module 14, pins 15 of the communication module are arranged in a pin shape, and the first circuit board or the second circuit board is provided with a pin socket 16 for the pins to be inserted and electrically connected. The table box includes base and apron 11, and the border of base, apron is provided with welding muscle 12, and the apron is fixed in on the base through ultrasonic bonding mode. And the welding muscle that is located on the base border sets up with the position complementation between the welding muscle that is located on the apron border, sets up the position of welding muscle promptly on the base border, and then needn't set up the welding muscle again on the corresponding position of apron, sets up the welding muscle position on the apron, does not set up the welding muscle in the base position that corresponds, and both complementation sets up, and then during ultrasonic bonding, the leakproofness is better.
The relays are arranged on the zero line and the live line respectively, and when one relay is disconnected and fails, the relay can be disconnected through the other relay, so that the relay is more reliable. In order to reduce the volume of the single-phase electric energy meter, the circuit boards are arranged into the first circuit board 1 and the second circuit board 8, so that the space in the meter box is fully utilized, the first circuit board and the second circuit board are oppositely arranged and are directly and mutually inserted through the contact pin 10 and the socket 9, and therefore not only is the electric connection realized, but also the mechanical connection between the two is realized, and the stability is relatively realized. The first relay and the second relay are respectively arranged on the first relay 2 and the second relay 7. Different customers have different demands to communication function, when current production, will produce the electric energy meter of different models, and production efficiency is low, in this application, sets up communication module 14 pin 15 and inserts the needle type, sets up pin socket 16 on the circuit board, then can peg graft different communication module according to different needs, in process of production, produces the same circuit board, again according to the different communication module's of the different demand inlet wires of customer setting, has improved production efficiency. And the communication module is not easy to replace after being damaged, and the whole circuit board is not required to be replaced, but the corresponding communication module is directly replaced.
The utility model discloses a setting of two relays for the circuit function is more reliable. Through the relative setting of first circuit board second circuit board, make full use of the inner space of table box. The communication module is made replaceable by a standardized arrangement of the communication module.
Claims (6)
1. The utility model provides a single-phase electric energy meter, includes the table box, sets up the circuit board in the table box and is used for connecting the inlet wire or the inlet wire box and the outlet box that is qualified for the next round of competitions, inlet wire box and outlet box on set up live wire terminal, zero line terminal, its characterized in that respectively: and a first relay is electrically connected between the wire inlet box and the live wire terminal of the wire outlet box, and a second relay is electrically connected between the wire inlet box and the zero line terminal of the wire outlet box.
2. A single phase electric energy meter according to claim 1, wherein: the circuit board include first circuit board, second circuit board, first circuit board, second circuit board set up side by side relatively, first circuit board on set up the contact pin, set up the socket on the second circuit board, first circuit board, second circuit board insert through the contact pin and realize the electricity in the socket and connect, first relay, second relay set up respectively on first circuit board, second circuit board.
3. A single phase electric energy meter according to claim 2, wherein: the first relay and the second relay are fixed on the adjacent sides of the first circuit board and the second circuit board.
4. A single phase electric energy meter according to claim 3, wherein: the first circuit board or the second circuit board is provided with a communication module, pins of the communication module are in a pin shape, and a pin socket for the pins to be inserted and electrically connected is arranged on the first circuit board or the second circuit board.
5. A single phase electric energy meter according to any one of claims 1 to 4, wherein: the meter box comprises a base and a cover plate, welding ribs are arranged on the edges of the base and the cover plate, and the cover plate is fixed on the base in an ultrasonic welding mode.
6. The single-phase electric energy meter according to claim 5, wherein: the welding ribs positioned on the edge of the base and the welding ribs positioned on the edge of the cover plate are arranged in a position complementary mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921379505.8U CN210835012U (en) | 2019-08-23 | 2019-08-23 | Single-phase electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921379505.8U CN210835012U (en) | 2019-08-23 | 2019-08-23 | Single-phase electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210835012U true CN210835012U (en) | 2020-06-23 |
Family
ID=71261494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921379505.8U Active CN210835012U (en) | 2019-08-23 | 2019-08-23 | Single-phase electric energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210835012U (en) |
-
2019
- 2019-08-23 CN CN201921379505.8U patent/CN210835012U/en active Active
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