CN211453723U - Direct current electric energy meter based on TMR current sensor - Google Patents
Direct current electric energy meter based on TMR current sensor Download PDFInfo
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- CN211453723U CN211453723U CN201921480344.1U CN201921480344U CN211453723U CN 211453723 U CN211453723 U CN 211453723U CN 201921480344 U CN201921480344 U CN 201921480344U CN 211453723 U CN211453723 U CN 211453723U
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Abstract
The utility model discloses a direct current electric energy meter based on TMR current sensor, including direct current electric energy meter main part, the front end surface of direct current electric energy meter main part is provided with mobile lower cover plate, mobile upper cover plate and front end cover plate, mobile lower cover plate is located one side of front end cover plate, mobile upper cover plate is located the opposite side of front end cover plate, the front end surface of front end cover plate is provided with the LCD screen, the inside of direct current electric energy meter main part is provided with built-in female arranging No. one and arranges with built-in two, built-in female arranging No. two is located one side of built-in female arranging No. one side, the surface middle part of built-in female arranging No. one is provided with TMR current sensor. Direct current electric energy meter based on TMR current sensor, through built-in TMR current sensor, do not need the outside to provide current measurement module, directly arrange electric energy meter and external current line or electric current and be connected just can realize the electric current measurement, bring better use prospect.
Description
Technical Field
The utility model relates to an electric energy meter field, in particular to direct current electric energy meter based on TMR current sensor.
Background
The electric energy meter is a device for measuring electric energy, can measure various electrical quantities, and has higher and higher requirements on the manufacturing process of the electric energy meter along with the continuous development of science and technology; the direct current electric energy meter used at present is used for assembling the manganin shunt outside a meter body for measuring current, the manganin shunt is separated from the electric energy meter and is not beneficial to the integral meter calibration of the electric energy meter, the manganin shunt is connected with the meter body by an extra connecting wire outside the meter body and is not beneficial to assembly, certain adverse effect is brought to the use process of people, and therefore the direct current electric energy meter based on the TMR current sensor is provided.
Disclosure of Invention
Technical problem to be solved
Not enough to prior art, the utility model provides a direct current electric energy meter based on TMR current sensor possesses and does not need the outside to provide advantages such as current measurement module, can effectively solve the problem in the background art.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: the electric energy meter comprises a direct current electric energy meter main body, wherein a movable lower cover plate, a movable upper cover plate and a front end cover plate are arranged on the outer surface of the front end of the direct current electric energy meter main body, the movable lower cover plate is positioned on one side of the front end cover plate, the movable upper cover plate is positioned on the other side of the front end cover plate, a liquid crystal screen is arranged on the outer surface of the front end cover plate, a first built-in busbar and a second built-in busbar are arranged inside the direct current electric energy meter main body, the second built-in busbar is positioned on one side of the first built-in busbar, a TMR current sensor is arranged in the middle of the outer surface of the first built-in busbar, a sensor cover plate is fixedly connected to the outer surface of one side of the TMR current sensor, a customized coil set is arranged inside the TMR current sensor, magnetic core assemblies are, the outer surface of one side of circuit mainboard is provided with TMR chip and external output interface, external output interface is located one side of TMR chip.
Preferably, be provided with the mounting groove between a built-in female row and the TMR current sensor, the internal fixed surface connection that mounting groove and TMR current sensor are passed through at a built-in female surface middle part of arranging, be provided with the set screw between TMR current sensor and the direct current electric energy meter main part, the internal fixed surface connection of set screw and direct current electric energy meter main part is passed through to TMR current sensor's lower extreme surface, and the quantity of set screw is a plurality of groups.
Preferably, the number of customization coil assembly and magnetic core subassembly is two sets of, be provided with the fixed orifices between customization coil assembly and the TMR current sensor, the internal surface fixed connection of one side surface of customization coil assembly through fixed orifices and TMR current sensor, the quantity of fixed orifices is two sets of.
Preferably, the output end of the TMR chip is electrically connected to the input end of the circuit motherboard, and the input end of the external output interface is electrically connected to the output end of the circuit motherboard.
Preferably, be provided with the draw-in groove between sensor apron and the TMR current sensor, one side surface of sensor apron passes through draw-in groove and TMR current sensor's one side surface fixed connection, and the quantity of draw-in groove is four groups.
Preferably, the input end of the liquid crystal display is electrically connected with the output end of the circuit main board.
Preferably, a first sliding groove is formed between the movable lower cover plate and the direct current electric energy meter main body, the outer surface of one side of the movable lower cover plate is movably connected with the outer surface of the front end of the direct current electric energy meter main body through the first sliding groove, a second sliding groove is formed between the movable upper cover plate and the direct current electric energy meter main body, and the outer surface of one side of the movable upper cover plate is movably connected with the outer surface of the front end of the direct current electric energy meter main body through the second sliding groove.
(III) advantageous effects
Compared with the prior art, the utility model provides a direct current electric energy meter based on TMR current sensor, through the built-in TMR current sensor of direct current electric energy meter, do not need the outside to provide current measurement module, directly be connected electric energy meter and external current line or female the arranging of electric current and just can realize the electric current measurement, whole electric energy meter simple structure possesses convenient operation, and the effect of use is better for traditional mode.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the TMR current sensor-based dc electric energy meter of the present invention;
fig. 2 is a top view of the TMR current sensor-based dc electric energy meter of the present invention;
fig. 3 is a parsing diagram of the TMR current sensor-based dc electric energy meter of the present invention;
fig. 4 is a schematic structural diagram of a TMR current sensor 5 in the TMR current sensor-based dc electric energy meter of the present invention;
fig. 5 is an explosion diagram of the TMR current sensor-based dc electric energy meter of the present invention;
fig. 6 is the utility model discloses schematic diagram in the dc electric energy meter based on TMR current sensor.
In the figure: 1. a direct current electric energy meter main body; 2. a liquid crystal screen; 3. a movable lower cover plate; 4. a movable upper cover plate; 5. a TMR current sensor; 6. a first built-in bus bar; 7. a second built-in bus bar; 8. a front end cover plate; 9. a TMR chip; 10. an external output interface; 11. a circuit main board; 12. a magnetic core assembly; 13. customizing a coil group; 14. and a sensor cover plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-6, the electric energy meter comprises a dc electric energy meter body 1, a movable lower cover plate 3, a movable upper cover plate 4 and a front cover plate 8 are arranged on the front outer surface of the dc electric energy meter body 1, the movable lower cover plate 3 is located on one side of the front cover plate 8, the movable upper cover plate 4 is located on the other side of the front cover plate 8, a liquid crystal screen 2 is arranged on the front outer surface of the front cover plate 8, a first built-in bus bar 6 and a second built-in bus bar 7 are arranged inside the dc electric energy meter body 1, the second built-in bus bar 7 is located on one side of the first built-in bus bar 6, a TMR current sensor 5 is arranged in the middle of the outer surface of the first built-in bus bar 6, a sensor cover plate 14 is fixedly connected to the outer surface of one side of the TMR current sensor 5, a custom coil group 13 is arranged, a circuit main board 11 is fixedly mounted on an outer surface of one side of the custom coil assembly 13, a TMR chip 9 and an external output interface 10 are arranged on an outer surface of one side of the circuit main board 11, and the external output interface 10 is located on one side of the TMR chip 9.
Further, be provided with the mounting groove between built-in female row 6 and the TMR current sensor 5 a, built-in female surface middle part of arranging 6 of a number passes through the mounting groove and is connected with TMR current sensor 5's internal surface fixed, be provided with the set screw between TMR current sensor 5 and the direct current electric energy meter main part 1, TMR current sensor 5's lower extreme surface passes through the internal surface fixed connection of set screw and direct current electric energy meter main part 1, the quantity of set screw is a plurality of groups, can make things convenient for the electric energy meter to operate the work.
Further, the quantity of customization coil assembly 13 and magnetic core assembly 12 is two sets of, is provided with the fixed orifices between customization coil assembly 13 and the TMR current sensor 5, and one side surface of customization coil assembly 13 passes through the fixed orifices and is connected with TMR current sensor 5's internal surface fixed, and the quantity of fixed orifices is two sets of, describes in detail the inside structure of electric energy meter.
Furthermore, the output of TMR chip 9 is connected with the input electric connection of circuit mainboard 11, and the input of external output interface 10 is connected with the output electric connection of circuit mainboard 11, does not need the outside to provide current measurement module, directly is connected electric energy meter and external current line or female arranging of electric current and just can realize the current measurement.
Further, be provided with the draw-in groove between sensor apron 14 and the TMR current sensor 5, one side surface of sensor apron 14 passes through the draw-in groove and one side surface fixed connection of TMR current sensor 5, and the quantity of draw-in groove is four groups, makes things convenient for people to install sensor apron 14.
Further, the input of LCD screen 2 and the output electric connection of circuit mainboard 11 can make things convenient for people to carry out data and look over.
Furthermore, a first sliding groove is formed between the movable lower cover plate 3 and the direct current electric energy meter main body 1, the outer surface of one side of the movable lower cover plate 3 is movably connected with the outer surface of the front end of the direct current electric energy meter main body 1 through the first sliding groove, a second sliding groove is formed between the movable upper cover plate 4 and the direct current electric energy meter main body 1, and the outer surface of one side of the movable upper cover plate 4 is movably connected with the outer surface of the front end of the direct current electric energy meter main body 1 through the second sliding groove.
The working principle is as follows: this electric energy meter includes built-in female arranging 6 No. one, No. two built-in female direct current ammeter who arranges 7 fixed connection, it is used for current measurement to run through a TMR current sensor 5 on one side of arranging 6 one of them built-in, direct current ammeter outside has four binding post to be used for being connected with outside copper bar or copper line, make the electric energy meter carry out circular telegram work, because built-in TMR current sensor 5 of this electric energy meter, so do not need the outside to provide current measurement module, direct be connected electric energy meter and outside current line or current mother and arrange and just can realize current measurement, compare and make things convenient for people to assemble in traditional external manganin copper shunt formula direct current electric energy meter more, whole electric energy meter simple structure, and convenient for operation, the effect of using is better for traditional mode, be favorable to people to.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. Direct current electric energy meter based on TMR current sensor, including direct current electric energy meter main part (1), its characterized in that: the front end outer surface of the direct current electric energy meter main body (1) is provided with a movable lower cover plate (3), a movable upper cover plate (4) and a front end cover plate (8), the movable lower cover plate (3) is positioned on one side of the front end cover plate (8), the movable upper cover plate (4) is positioned on the other side of the front end cover plate (8), the front end outer surface of the front end cover plate (8) is provided with a liquid crystal screen (2), the inside of the direct current electric energy meter main body (1) is provided with a built-in bus bar (6) and a built-in bus bar (7), the built-in bus bar (7) is positioned on one side of the built-in bus bar (6), the middle part of the outer surface of the built-in bus bar (6) is provided with a TMR current sensor (5), the outer surface of one side of the TMR current sensor (5) is fixedly connected with a sensor cover plate (14), and the inside of, the utility model discloses a customization circuit, including customization coil assembly (13), one side outer surface fixed mounting of customization coil assembly (13) has circuit mainboard (11), one side outer surface of circuit mainboard (11) is provided with TMR chip (9) and external output interface (10), external output interface (10) are located one side of TMR chip (9).
2. The TMR current sensor-based direct current electric energy meter according to claim 1, wherein: be provided with the mounting groove between a built-in female arranging (6) and TMR current sensor (5), the internal fixed surface connection that passes through mounting groove and TMR current sensor (5) is arranged at the surface middle part of a built-in female arranging (6), be provided with the set screw between TMR current sensor (5) and direct current electric energy meter main part (1), the internal fixed surface connection of set screw and direct current electric energy meter main part (1) is passed through to the lower extreme surface of TMR current sensor (5), and the quantity of set screw is a plurality of groups.
3. The TMR current sensor-based direct current electric energy meter according to claim 1, wherein: the quantity of customization coil assembly (13) and magnetic core component (12) is two sets of, be provided with the fixed orifices between customization coil assembly (13) and TMR current sensor (5), the one side surface of customization coil assembly (13) is through the internal surface fixed connection of fixed orifices and TMR current sensor (5), and the quantity of fixed orifices is two sets of.
4. The TMR current sensor-based direct current electric energy meter according to claim 1, wherein: the output of TMR chip (9) and the input electric connection of circuit mainboard (11), the input of external output interface (10) and the output electric connection of circuit mainboard (11).
5. The TMR current sensor-based direct current electric energy meter according to claim 1, wherein: be provided with the draw-in groove between sensor apron (14) and TMR current sensor (5), one side surface of sensor apron (14) passes through the draw-in groove and one side surface fixed connection of TMR current sensor (5), and the quantity of draw-in groove is four groups.
6. The TMR current sensor-based direct current electric energy meter according to claim 1, wherein: the input end of the liquid crystal screen (2) is electrically connected with the output end of the circuit main board (11).
7. The TMR current sensor-based direct current electric energy meter according to claim 1, wherein: be provided with the spout No. one between mobile lower cover plate (3) and direct current electric energy meter main part (1), one side surface of mobile lower cover plate (3) is through the front end surface swing joint of spout and direct current electric energy meter main part (1), be provided with the spout No. two between mobile upper cover plate (4) and direct current electric energy meter main part (1), one side surface of mobile upper cover plate (4) is through the front end surface swing joint of spout No. two and direct current electric energy meter main part (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921480344.1U CN211453723U (en) | 2019-09-06 | 2019-09-06 | Direct current electric energy meter based on TMR current sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921480344.1U CN211453723U (en) | 2019-09-06 | 2019-09-06 | Direct current electric energy meter based on TMR current sensor |
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| CN211453723U true CN211453723U (en) | 2020-09-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113834969A (en) * | 2021-08-12 | 2021-12-24 | 国网浙江省电力有限公司营销服务中心 | Direct access type direct current electric energy meter |
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2019
- 2019-09-06 CN CN201921480344.1U patent/CN211453723U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113834969A (en) * | 2021-08-12 | 2021-12-24 | 国网浙江省电力有限公司营销服务中心 | Direct access type direct current electric energy meter |
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