CN209372957U - Can anti-magnetic interference electronic electric energy meter - Google Patents
Can anti-magnetic interference electronic electric energy meter Download PDFInfo
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- CN209372957U CN209372957U CN201822005520.8U CN201822005520U CN209372957U CN 209372957 U CN209372957 U CN 209372957U CN 201822005520 U CN201822005520 U CN 201822005520U CN 209372957 U CN209372957 U CN 209372957U
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- energy meter
- electric energy
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Abstract
The utility model discloses it is a kind of can anti-magnetic interference electronic electric energy meter, the circuit board including current divider and electronic electric energy meter；Current divider includes sampling resistor piece, and the first sampling foot of sampling resistor piece and the second sampling foot are connected with the circuit board of electric energy meter；Current divider further includes pcb board, and the plate face of pcb board and the plate face of sampling resistor piece are substantially parallel, and the first electric conductor is printed in pcb board, and the first electric conductor both ends are connected by rigid conductive body with the circuit board of electric energy meter；The second electric conductor is printed on the circuit board of electric energy meter, two rigid conductive bodies are intersected with the first sampling foot of sampling resistor piece and the second sampling foot by the second electric conductor on the circuit board of electric energy meter and are connected, to make the direction for interfering magnetic field induced electromotive force caused by pcb board and interfere the contrary of magnetic field induced electromotive force caused by sampling resistor piece.The utility model can either realize Automated assembly, and can guarantee jamproof effect and need not be finely adjusted again after assembly.
Description
Technical field
The utility model relates to electronic instrument technical field, more particularly to it is a kind of can anti-magnetic interference electronic watt-hour
Table.
Background technique
Electronic electric energy meter is a kind of electronic instrument equipment, it is by adopting to customer power supply voltage and current real-time sampling
With dedicated electric energy meter integrated circuit, sampled voltage and current signal are handled and be multiplied be converted into it is directly proportional to electric energy
Pulse output, then shown by register or digital display.The electronic electric energy meter of the prior art is usually to use copper-manganese etc.
High stability material makes current sample element, that is, copper-manganese splitter, and still, due to the interference by external magnetic field, copper-manganese is shunted
On piece has self inductance current to flow through, in this way, electric energy meter will be made current indication mistake occur, causes electric energy in the case of no any load
Table mistakenly measures electricity consumption.In order to solve the interference in magnetic field, a kind of scheme of the prior art is in copper-manganese splitter
Between through-hole is set, two signal sampling lines are respectively welded on the upper and lower sampling foot of copper-manganese splitter, and allow therein one
Root signal sampling line passes through the through-hole of the centre of copper-manganese splitter, and electronic type electricity is then connected to together with another signal sampling line
The circuit board of energy table achievees the effect that anti-0.5mT so as to realize preferable diamagnetic field interference effect.It can but this
Jamproof electronic electric energy meter, there is also following two drawbacks: first is that, because signal sampling cable architecture characteristic, cannot adopt
Use Automated assembly；Second is that because signal sampling line is too soft, signal sampling line welded with copper-manganese splitter after position and signal adopt
Molding shape is all variant after line-transect welding, causes anti-0.5mT there is also difference, and product has arrived the test of client dress table
A confirmation will be finely tuned when 0.5mT again and reaches state's net full marks requirement.
Utility model content
The purpose of the utility model is to overcome the deficiency of the prior art, provide it is a kind of can anti-magnetic interference electronic type electricity
Energy table can either realize Automated assembly by the improvement to current divider anti-interference structure, and can guarantee jamproof effect
And it need not be finely adjusted again after assembly.
The technical scheme adopted by the utility model to solve the technical problem is as follows: it is a kind of can anti-magnetic interference electronic type electricity
Energy table, the circuit board including current divider and electronic electric energy meter；The current divider includes one section and is made of high resistivity material
Made of board-like sampling resistor piece, the both sides of the upper end of sampling resistor piece are respectively equipped with first sampling foot and second protruding upward
Sample foot；First sampling foot of the sampling resistor piece and the second sampling foot are connected with the circuit board of electronic electric energy meter respectively
It connects；The current divider further includes a pcb board, and the plate face of the pcb board and the plate face of sampling resistor piece are substantially parallel, in pcb board
It is printed with the first electric conductor of the wire shape of the peripheral extent corresponding to sampling resistor piece, the both ends point of first electric conductor
It is not connected by a rigid conductive body with the circuit board of the electronic electric energy meter；The circuit board of the electronic electric energy meter
On be printed with the second electric conductor, described two rigid conductive bodies pass through described second on the circuit board of the electronic electric energy meter
Electric conductor intersects with the first sampling foot of the sampling resistor piece and the second sampling foot and is connected, to make to interfere magnetic field in PCB
The direction of induced electromotive force caused by plate is contrary with interference magnetic field induced electromotive force caused by sampling resistor piece.
It is used to insert the first sampling foot and the second sampling foot on the circuit board of the electronic electric energy meter there are two setting
First through hole, and be respectively equipped with electric connector in two first through hole with realize with first sampling foot and second sampling foot pair
It should be electrically connected；It is additionally provided with two on the circuit board of the electronic electric energy meter and leads to for inserting the second of the rigid conductive body
Hole, and electric connector is respectively equipped in two the second through-holes to realize and the corresponding electrical connection of two rigid conductive bodies；Two
The electric connector of one through-hole is intersected by second electric conductor with the electric connector of two the second through-holes and is connected.
Described two first through hole and described two second through-holes are disposed side by side on the electricity of the electronic electric energy meter respectively
On the plate of road, and the line of two first through hole and the line of two the second through-holes are substantially parallel；Second electric conductor includes upper
Electric conductor and lower electric conductor, the upper electric conductor are located at the front of the circuit board of the electronic electric energy meter, the upper electric conductor
It is connected to one of a first through hole of the first side of two first through hole side by side and second side of two the second through-holes side by side
Between second through-hole, the lower electric conductor is located at the back side of the circuit board of the electronic electric energy meter, the lower electric conductor connection
At one second of a first through hole and the first side of two the second through-holes side by side of second side of two first through hole side by side
Between through-hole.
It is set on the pcb board there are two being respectively intended to the third through-hole matched with two rigid conductive body grafting, two
Electric connector is respectively equipped in third through-hole to realize and the corresponding electrical connection of two rigid conductive bodies；First electric conductor
Both ends are corresponding with the electric connector in two third through-holes respectively to be connected.
First electric conductor is generally shaped like U-shaped.
The rigid conductive body is L-type shape, and the L-type shape of the rigid conductive body is inserted into the electricity on one side vertically
In second through-hole of the circuit board of minor electric energy meter, the level of the L-type shape of the rigid conductive body is inserted into the PCB on one side
In the third through-hole of plate.
The electronic electric energy meter further includes relay, the relay include for connecting the two of load exits,
The sampling resistor piece is located in one of exit.
The first sampling foot and the second sampling foot respectively further comprise the lower connection for integrally connecting with sampling resistor piece
Foot and upper connecting pin for being connected with the circuit board of electronic electric energy meter.
For the upper connecting pin and lower connecting pin of the first sampling foot in being dislocatedly distributed, described second samples the upper connecting pin of foot
It is also in be dislocatedly distributed with lower connecting pin.
The distance between upper connecting pin of the upper connecting pin of the first sampling foot and the second sampling foot is less than the first sampling
The distance between the lower connecting pin of the lower connecting pin of foot and the second sampling foot.
Compared with prior art, the beneficial effects of the utility model are:
The utility model is due to using one pcb board of setting, and the plate face of the pcb board and the plate face of sampling resistor piece are substantially
In parallel；Foot is sampled by the first of sampling resistor piece and the second sampling foot is connected with the circuit board of electronic electric energy meter respectively；?
The first electric conductor of the wire shape of the peripheral extent corresponding to sampling resistor piece, the wire shape of pcb board are printed in pcb board
The both ends of the first electric conductor pass through a rigid conductive body respectively and be connected with the circuit board of the electronic electric energy meter；It is described
The second electric conductor is printed on the circuit board of electronic electric energy meter, the rigid conductive body at the both ends of first electric conductor is described
It is taken on the circuit board of electronic electric energy meter by the first sampling foot and second of second electric conductor and the sampling resistor piece
Sample foot intersection is connected, so that the direction for interfering magnetic field induced electromotive force caused by pcb board be made to sample with interference magnetic field
Induced electromotive force caused by resistor disc it is contrary.This structure of the utility model can either realize Automated assembly,
It can guarantee jamproof effect again and need not be finely adjusted again after assembly.
The utility model is described in further detail with reference to the accompanying drawings and embodiments；But one kind of the utility model can
The electronic electric energy meter of anti-magnetic interference is not limited to the embodiment.
Detailed description of the invention
Fig. 1 is the D structure schematic diagram of the part-structure of the embodiments of the present invention；
Fig. 2 is the D structure decomposition diagram of the part-structure of the embodiments of the present invention；
Fig. 3 is the main view of the part-structure of the embodiments of the present invention；
Fig. 4 is the bottom view of the part-structure of the embodiments of the present invention；
Fig. 5 is the side view of the part-structure of the embodiments of the present invention；
Fig. 6 is the organigram of the exit of the relay of the embodiments of the present invention；
Fig. 7 is the positive structure schematic of the circuit board of the electronic electric energy meter of the embodiments of the present invention；
Fig. 8 is the structure schematic diagram of the circuit board of the electronic electric energy meter of the embodiments of the present invention.
Specific embodiment
Embodiment
Referring to shown in Fig. 1 to Fig. 8, the utility model it is a kind of can anti-magnetic interference electronic electric energy meter, including shunt
The circuit board 2 of device 1 and electronic electric energy meter；The current divider 1 is made board-like including one section of use high resistivity material
Sampling resistor piece 3, the both sides of the upper end of sampling resistor piece 3 are respectively equipped with the first sampling foot 31 and the second sampling foot protruding upward
32；First sampling foot 31 of the sampling resistor piece 3 and the second sampling foot 32 are connected with the circuit board of electronic electric energy meter 2 respectively
It connects；The current divider 1 further includes a pcb board 4, and the plate face of the pcb board 4 and the plate face of sampling resistor piece 3 are substantially parallel, in PCB
The first electric conductor 41 of the wire shape of the peripheral extent corresponding to sampling resistor piece 3, first electric conductor are printed in plate 4
41 both ends pass through a rigid conductive body 5 respectively and are connected with the circuit board 2 of the electronic electric energy meter；The electronic type electricity
The second electric conductor 6, circuit of described two rigid conductive bodies 5 in the electronic electric energy meter can be printed on the circuit board 2 of table
Intersected by second electric conductor 6 with the first sampling foot 31 of the sampling resistor piece and the second sampling foot 32 on plate 2 and is connected
It connects, so that the direction for interfering magnetic field induced electromotive force caused by pcb board 4 be made to be produced with interference magnetic field in sampling resistor piece 3
Raw induced electromotive force it is contrary.High resistivity material selected by the present embodiment is copper-manganese, certainly, high resistivity material
It can also be other kinds of material, such as constantan etc..
In the present embodiment, set on the circuit board 2 of the electronic electric energy meter there are two be used to insert it is described first sampling foot
The first through hole 21 of foot is sampled with second, and is respectively equipped with electric connector 211 in two first through hole 21 and is taken with realizing with first
The corresponding electrical connection of sample foot 31 and the second sampling foot 32；Two are additionally provided on the circuit board 2 of the electronic electric energy meter to be used to insert
The second through-hole 22 of the rigid conductive body is filled, and is respectively equipped with electric connector 221 in two the second through-holes 22 to realize and two
The corresponding electrical connection of a rigid conductive body 5；The electric connector of the electric connector 211 of two first through hole and two the second through-holes
221 are connected by second electric conductor 6 intersection.
In the present embodiment, described two first through hole 21 and described two second through-holes 22 are disposed side by side on the electricity respectively
On the circuit board 2 of minor electric energy meter, and the line of two first through hole 21 and the line of two the second through-holes 22 are substantially parallel；Institute
Stating the second electric conductor 6 includes upper electric conductor 61 and lower electric conductor 62, and the upper electric conductor 61 is located at the electronic electric energy meter
The front of circuit board 2, the upper electric conductor 61 be connected to a first through hole 21 of the first side of two first through hole side by side with
Side by side between second through-hole 22 of second side of two the second through-holes, the lower electric conductor 62 is located at the electronic watt-hour
The back side of the circuit board 2 of table, the lower electric conductor 62 are connected to a first through hole of second side of two first through hole side by side
21 and side by side between second through-hole 22 of the first side of two the second through-holes.
In the present embodiment, set that there are two be respectively intended to match with two 5 grafting of rigid conductive body on the pcb board 4
Third through-hole 42, it is corresponding electric with two rigid conductive bodies 5 to realize that electric connector 421 is respectively equipped in two third through-holes 42
Connection；The both ends of first electric conductor 41 are corresponding with the electric connector 421 in two third through-holes 42 respectively to be connected.
In the present embodiment, first electric conductor 41 is generally shaped like U-shaped, and the upper end of U-shaped side wall extends into opening,
Also correspond to the frame shape not completely enclosed.
In the present embodiment, the rigid conductive body 5 be L-type shape, vertical the one of the L-type shape of the rigid conductive body 5
Side 51 is inserted into the second through-hole 22 of the circuit board 2 of the electronic electric energy meter, the L-type shape of the rigid conductive body 5
It is horizontal 52 to be inserted into the third through-hole 42 of the pcb board 4 on one side.
In the present embodiment, the electronic electric energy meter further includes relay 7, and the relay 7 includes being used to connect load
Two exits 71,72, the sampling resistor piece 3 is located in one of exit 71.
In the present embodiment, the first sampling foot 31 includes the lower connecting pin 312 for integrally connecting with sampling resistor piece 3
With the upper connecting pin 311 for being used to be connected with the circuit board 2 of electronic electric energy meter, the second sampling foot 32 respectively further comprises use
Upper company come the lower connecting pin 322 integrally to connect with sampling resistor piece 3 and for being connected with the circuit board 2 of electronic electric energy meter
Pin 321.
In the present embodiment, the upper connecting pin 311 and lower connecting pin 312 of the first sampling foot 31 are in be dislocatedly distributed, described
The upper connecting pin 321 and lower connecting pin 322 of second sampling foot 32 are also in be dislocatedly distributed.
In the present embodiment, it is described first sampling foot 31 upper connecting pin 311 with second sample foot 32 upper connecting pin 321 it
Between distance less than first sampling foot 31 lower connecting pin 312 with second sample foot 32 the distance between lower connecting pin 322.
The utility model it is a kind of can anti-magnetic interference electronic electric energy meter, the first of setting wire shape can be passed through
41 area encompassed of electric conductor and the plate face area of sampling resistor piece 3 match, and make to interfere magnetic field caused by the pcb board 4
Interference magnetic field induced electromotive force caused by sampling resistor piece 3 is offset in the complete conjunction of induced electromotive force.
The utility model it is a kind of can anti-magnetic interference electronic electric energy meter, use one pcb board 4 of setting, and the PCB
The plate face of plate 4 and the plate face of sampling resistor piece 3 are substantially parallel；Foot 31 and the second sampling foot are sampled by the first of sampling resistor piece 3
32 are connected with the circuit board of electronic electric energy meter 2 respectively；The periphery model corresponding to sampling resistor piece 3 is printed in pcb board 4
First electric conductor 41 of the wire shape enclosed, the both ends of the first electric conductor 41 of the wire shape of pcb board pass through one firmly respectively
Matter electric conductor 5 is connected with the circuit board 2 of the electronic electric energy meter；It is printed on the circuit board 2 of the electronic electric energy meter
Second electric conductor 6, the rigid conductive body 5 at the both ends of first electric conductor lead on the circuit board 2 of the electronic electric energy meter
It crosses the first of second electric conductor 6 and the sampling resistor piece and samples foot 31 and the second sampling foot 32 intersects and is connected, thus
Make the direction for interfering magnetic field induced electromotive force caused by pcb board and interference magnetic field induced electricity caused by sampling resistor piece
Kinetic potential it is contrary.The utility model due to using pcb board 4, pcb board 4 and electronic electric energy meter circuit board 2 (
Printed circuit board arrangement) connection on can be convenient for Automated assembly, the circuit board 2 of electronic electric energy meter and sampling resistor piece 2
The first sampling foot 21 and the second sampling foot 22 connection on can also be convenient for Automated assembly, simultaneously as be led using not soft
Line, there is no differences for link position, need not finely tune again after assembly, can either realize Automated assembly, and can guarantee anti-dry
The effect disturbed and need not be finely adjusted again after assembly.
The preferred embodiment of above-mentioned only the utility model, does not impose any limitation on the present invention.Though
So the utility model has been disclosed with preferred embodiment as above, however is not intended to limit the utility model.It is any to be familiar with this field
Technical staff, in the case where not departing from technical solutions of the utility model range, all using the technology contents of the disclosure above
Many possible changes and modifications are made to technical solutions of the utility model, or are revised as equivalents equivalent embodiment.Therefore,
All contents without departing from technical solutions of the utility model, according to the utility model technical spirit made to the above embodiment
What simple modification, equivalent variation and modification should all be fallen in the range of technical solutions of the utility model protection.
Claims (10)
1. one kind can anti-magnetic interference electronic electric energy meter, the circuit board including current divider and electronic electric energy meter；Described point
Stream device includes one section of board-like sampling resistor piece being made using high resistivity material, the both sides point of the upper end of sampling resistor piece
The first sampling foot and the second sampling foot that She You be not protruding upward；First sampling foot of the sampling resistor piece and the second sampling foot
It is connected respectively with the circuit board of electronic electric energy meter；It is characterized by: the current divider further includes a pcb board, the pcb board
Plate face and the plate face of sampling resistor piece are substantially parallel, and leading for the peripheral extent corresponding to sampling resistor piece is printed in pcb board
First electric conductor of wire shaped, the both ends of first electric conductor pass through a rigid conductive body and the electronic watt-hour respectively
The circuit board of table is connected；The second electric conductor, described two rigid conductives are printed on the circuit board of the electronic electric energy meter
Body passes through the first sampling foot of second electric conductor and the sampling resistor piece on the circuit board of the electronic electric energy meter
It is connected with the second sampling foot intersection, to make the direction for interfering magnetic field induced electromotive force caused by pcb board and interference magnetic
The induced electromotive force caused by sampling resistor piece it is contrary.
2. it is according to claim 1 can anti-magnetic interference electronic electric energy meter, it is characterised in that: the electronic watt-hour
It is used to insert the first through hole of the first sampling foot and the second sampling foot on the circuit board of table there are two setting, and two first logical
Electric connector is respectively equipped in hole to realize and the corresponding electrical connection of the first sampling foot and the second sampling foot；The electronic watt-hour
It is additionally provided with two on the circuit board of table and is used to insert the second through-hole of the rigid conductive body, and is set respectively in two the second through-holes
There is electric connector to realize and the corresponding electrical connection of two rigid conductive bodies；The electric connector of two first through hole and two second
The electric connector of through-hole is connected by second electric conductor intersection.
3. it is according to claim 2 can anti-magnetic interference electronic electric energy meter, it is characterised in that: described two first is logical
Hole and described two second through-holes are disposed side by side on respectively on the circuit board of the electronic electric energy meter, and two first through hole
The line of line and two the second through-holes is substantially parallel；Second electric conductor includes upper electric conductor and lower electric conductor, it is described on
Electric conductor is located at the front of the circuit board of the electronic electric energy meter, and the upper electric conductor is connected to two first through hole side by side
Between one second through-hole of one first through hole of the first side and side by side second side of two the second through-holes, the lower electric conductor
It is located at the back side of the circuit board of the electronic electric energy meter, the lower electric conductor is connected to second side of two first through hole side by side
A first through hole and side by side between second through-hole of the first side of two the second through-holes.
4. it is according to claim 2 can anti-magnetic interference electronic electric energy meter, it is characterised in that: set on the pcb board
There are two the third through-hole matched with two rigid conductive body grafting is respectively intended to, it is respectively equipped with and is electrically connected in two third through-holes
Junctor is to realize and the corresponding electrical connection of two rigid conductive bodies；The both ends of first electric conductor respectively with two third through-holes
In electric connector correspondence be connected.
5. it is according to claim 1 or 4 can anti-magnetic interference electronic electric energy meter, it is characterised in that: described first leads
Electric body is generally shaped like U-shaped.
6. it is according to claim 1 or 2 or 4 can anti-magnetic interference electronic electric energy meter, it is characterised in that: the hard
Electric conductor is L-type shape, the circuit for being inserted into the electronic electric energy meter on one side vertically of the L-type shape of the rigid conductive body
In second through-hole of plate, the level of the L-type shape of the rigid conductive body is inserted on one side in the third through-hole of the pcb board.
7. it is according to claim 1 can anti-magnetic interference electronic electric energy meter, it is characterised in that: the electronic watt-hour
Table further includes relay, and the relay includes for connecting the two of load exits, and the sampling resistor piece is located at wherein
In one exit.
8. it is according to claim 1 can anti-magnetic interference electronic electric energy meter, it is characterised in that: it is described first sampling foot
The lower connecting pin for integrally connecting with sampling resistor piece is respectively further comprised with the second sampling foot and is used to and electronic electric energy meter
The upper connecting pin that is connected of circuit board.
9. it is according to claim 8 can anti-magnetic interference electronic electric energy meter, it is characterised in that: it is described first sampling foot
Upper connecting pin and lower connecting pin in being dislocatedly distributed, the upper connecting pin and lower connecting pin of the second sampling foot are also in dislocation point
Cloth.
10. it is according to claim 9 can anti-magnetic interference electronic electric energy meter, it is characterised in that: it is described first sampling
The distance between the upper connecting pin of foot and the upper connecting pin of the second sampling foot take less than the lower connecting pin of the first sampling foot with second
The distance between lower connecting pin of sample foot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822005520.8U CN209372957U (en) | 2018-11-30 | 2018-11-30 | Can anti-magnetic interference electronic electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822005520.8U CN209372957U (en) | 2018-11-30 | 2018-11-30 | Can anti-magnetic interference electronic electric energy meter |
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| Publication Number | Publication Date |
|---|---|
| CN209372957U true CN209372957U (en) | 2019-09-10 |
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ID=67834697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822005520.8U Active CN209372957U (en) | 2018-11-30 | 2018-11-30 | Can anti-magnetic interference electronic electric energy meter |
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| Country | Link |
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| CN (1) | CN209372957U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109557364A (en) * | 2018-11-30 | 2019-04-02 | 厦门宏发电力电器有限公司 | It is a kind of can anti-magnetic interference electronic electric energy meter |
| CN112730928A (en) * | 2020-11-30 | 2021-04-30 | 江阴长仪集团有限公司 | Intelligent electric energy meter with built-in power frequency magnetic field resisting relay and magnetic resisting method |
-
2018
- 2018-11-30 CN CN201822005520.8U patent/CN209372957U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109557364A (en) * | 2018-11-30 | 2019-04-02 | 厦门宏发电力电器有限公司 | It is a kind of can anti-magnetic interference electronic electric energy meter |
| CN112730928A (en) * | 2020-11-30 | 2021-04-30 | 江阴长仪集团有限公司 | Intelligent electric energy meter with built-in power frequency magnetic field resisting relay and magnetic resisting method |
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