CN213780169U

CN213780169U - Electric power parameter detecting instrument

Info

Publication number: CN213780169U
Application number: CN202022893329.9U
Authority: CN
Inventors: 李培
Original assignee: Ningbo Peizheng Electronic Technology Co ltd
Current assignee: Ningbo Peizheng Electronic Technology Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-07-23
Anticipated expiration: 2030-12-03

Abstract

The utility model discloses an electric power parameter detecting instrument, including the instrument casing, seted up the demonstration mouth on the instrument casing, demountable installation has the shunt on the instrument casing, and the shunt includes the resistance card, and movable mounting has first terminal and the second terminal that is arranged in inserting outside forceful electric power return circuit on the resistance card, is equipped with the retaining member on the instrument casing, and the part of first terminal, second terminal is passed the resistance card and is locked with the retaining member cooperation displaceably. Through with terminal displaceable ground and retaining member cooperation locking, fix the resistance card on the meter housing, realize shunt and meter housing integration in an organic whole, improved stability and security that electric power parameter detected time measuring, only need insert with the forceful electric power return circuit when just detecting, convenient to use has shortened installation and dismantlement time, has improved detection efficiency.

Description

Electric power parameter detecting instrument

Technical Field

The utility model relates to an electric power parameter detection technology field, concretely relates to electric power parameter detection instrument.

Background

The electric power instrument can replace a conventional power transmitter and a conventional measuring instrument, is used as an advanced intelligent and digital front-end acquisition element, is widely applied to various control systems, data acquisition monitoring systems and energy management systems, and can respectively measure parameters such as current, voltage, power factor, electric energy and the like in a power grid.

When the electric power parameter of current electric power instrument in gathering the forceful electric power return circuit, need introduce the forceful electric power return circuit through external shunt in, because the shunt is not convenient for fix for at the in-process that detects, the shunt rocks with the junction of outside forceful electric power and electric power instrument produces easily, influences the stability and the security that detect, and installation, dismantlement are also more troublesome.

SUMMERY OF THE UTILITY MODEL

For solving the technical defect, the utility model discloses a technical scheme lie in, provide an electric power parameter measuring instrument, including the instrument casing, the display mouth has been seted up on the instrument casing, demountable installation has the shunt on the instrument casing, the shunt includes the resistance card, movable mounting has first terminal and the second terminal that is arranged in inserting outside forceful electric power return circuit on the resistance card, be equipped with the retaining member on the instrument casing, the part of first terminal, second terminal is passed the resistance card and is locked with the retaining member cooperation displaceably.

Furthermore, the meter shell is provided with a mounting port, a support plate is arranged on the mounting port, and the resistance card and the locking piece are installed on the support plate in a matched mode.

Further, still be equipped with the apron that is located the resistance card top on the meter housing, the apron is installed in meter housing or backup pad, be equipped with the through-hole or the breach that supplies first terminal and second terminal to pass on the apron.

Furthermore, be equipped with first location portion in the backup pad, retaining member cooperation is installed on first location portion.

Furthermore, a second positioning portion is arranged on the supporting plate, and the resistor disc is installed on the second positioning portion in a matched mode.

Furthermore, a limiting part is arranged on the second positioning part, and the resistor disc is clamped between the second positioning part and the limiting part.

Further, be equipped with button hole and voltage interface on the instrument casing, install collection module, AD conversion processing module, button module, drive module and display module in the instrument casing, voltage interface is connected with the collection module electricity, the both ends of resistance card are connected with the collection module electricity through connecting wire respectively, collection module, button module, drive module are connected with AD conversion processing module electricity respectively, the display module is connected with the drive module electricity, the display module is installed on showing the mouth, button module installs on the button hole.

Further, still install storage module in the instrument housing, storage module is connected with AD conversion processing module electricity.

Further, still install power module in the instrument casing, power module is connected with collection module, drive module, AD conversion processing module electricity respectively.

Compared with the prior art the utility model discloses technical scheme's beneficial effect does:

the utility model provides a pair of electric power parameter detecting instrument through with terminal displaceable ground and retaining member cooperation locking, fixes the resistance card on the instrument housing, realizes shunt and instrument housing integration in an organic whole, has improved stability and security that electric power parameter detected time measuring, and only need insert with forceful electric power return circuit when detecting, and convenient to use has shortened installation and dismantlement time, has improved detection efficiency.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a perspective view of an electric parameter measuring instrument provided in an embodiment of the present invention;

fig. 2 is a perspective view of another position of an electrical parameter measuring instrument provided in an embodiment of the present invention;

fig. 3 is an exploded schematic view of an electrical parameter measuring instrument provided in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an electric parameter measuring instrument provided by an embodiment of the present invention with a cover plate removed;

fig. 5 is a schematic block diagram of a structure of an electric parameter measuring instrument provided in an embodiment of the present invention;

fig. 6 is a circuit diagram of an a/D conversion processing module, a key module and a storage module in the power parameter detecting instrument according to an embodiment of the present invention;

fig. 7 is a circuit diagram of a driving module, a display module and an indicator light module in an electric parameter detecting instrument provided by an embodiment of the present invention;

fig. 8 is a circuit diagram of an acquisition module and a power module in an electric power parameter detecting instrument provided by the embodiment of the present invention.

The reference numbers are as follows:

1. meter case, 1a, show the mouth, 1b, the installing port, 1c, the key hole, 1D, voltage interface, 2, the resistance card, 3, first terminal, 4, the second terminal, 5, the retaining member, 6, the backup pad, 7, the apron, 8, first location portion, 9, the second location portion, 10, spacing portion, 11, the collection module, 12, AD conversion processing module, 13, the button module, 14, drive module, 15, the display module, 16, storage module, 17, power module, 18, the pilot lamp module, 19, the louvre, 20, the support column, 21, the sleeve.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

Example 1

Please refer to fig. 1-8, the utility model provides a power parameter detecting instrument, including meter housing 1, meter housing 1 is last to have seted up and to show mouthful 1a, and demountable installation has the shunt on meter housing 1, and the shunt includes resistance card 2, and movable mounting has first terminal 3 and second terminal 4 that are arranged in inserting outside forceful electric power return circuit on the resistance card 2, is equipped with retaining member 5 on meter housing 1, and the part of first terminal 3, second terminal 4 passes resistance card 2 and cooperates the locking with retaining member 5 displaceably.

Specifically, the upper ends of the first binding post 3 and the second binding post 4 are respectively provided with a hexagonal limiting part, a metal gasket which is sleeved on the binding posts and is convenient for fixing and inserting a wire is arranged between the hexagonal limiting part and the resistance card 2. Be equipped with the adjustment tank on the spacing portion of hexagonal, conveniently lock and install, dismantle the shunt to the wire of inserting.

Preferably, the meter housing 1 is provided with a mounting opening 1b, the mounting opening 1b is provided with a support plate 6, and the resistance card 2 and the locking member 5 are mounted on the support plate 6 in a matching manner, so that the shunt is convenient to fix. Still be equipped with the apron 7 that is located 2 tops of resistance card on the meter housing 1, apron 7 is installed on meter housing 1 or backup pad 6, is equipped with the through-hole or the breach that supplies first terminal 3 and second terminal 4 to pass on the apron 7, and the terminal of being convenient for inserts the forceful electric power return circuit.

Specifically, be equipped with support column 20 in the instrument housing 1, the lower extreme of backup pad 6 is equipped with sleeve 21, and the sleeve 21 cover is established and is installed on support column 20, is equipped with the perforation with sleeve 21 intercommunication in the backup pad 6, installs the screw hole on support column 20 and the apron 7 respectively, and instrument housing 1, backup pad 6 and apron 7 pass through the screw installation fixed. The side wall of the instrument shell 1 and the cover plate 7 are respectively provided with a heat radiation hole 19.

Specifically, an annular limiting groove is formed in the inner wall of the instrument shell 1, and the supporting plate 6 is mounted on the annular limiting groove, so that a hardware module accommodating area is formed between the instrument shell 1 and the supporting plate 6.

Preferably, the supporting plate 6 is provided with a first positioning portion 8, and the locking member 5 is fittingly installed on the first positioning portion 8. The support plate 6 is provided with a second positioning portion 9, and the resistance card 2 is installed on the second positioning portion 9 in a matching mode. The second positioning portion 9 is provided with a limiting portion 10, and the resistor disc 2 is clamped between the second positioning portion 9 and the limiting portion 10.

Specifically, the first binding post 3 and the second binding post 4 are respectively in threaded connection with a locking part 5, the locking part 5 is a hexagonal nut, the first positioning part 8 is a hexagonal groove, and a cylindrical groove which is matched with the binding post 3 is formed in the middle of the hexagonal groove; the resistance card 2 is rectangular, the second positioning part 9 is a rectangular annular convex edge, the limiting part 10 is a clamping block which is oppositely arranged on the upper end surfaces of the two end parts of the annular convex edge, and the clamping block is provided with a guide inclined plane, so that the resistance card 2 can be conveniently and quickly clamped in; a clamping part is arranged on one side edge of the annular convex edge, a clamping groove clamped with the clamping part in a matched mode is arranged on the cover plate 7, and a wire guide hole is formed in the other side edge of the annular convex edge. The shapes and the structures of the locking piece 5 and the resistance card 2 can be adjusted according to actual requirements.

Retaining member 5 receives the hexagonal recess spacing on the horizontal direction, is locked by apron 7 in the vertical direction, and the shunt can not take place the displacement for instrument housing 1 among the testing process, and structural connection's stability is high.

Preferably, the instrument housing 1 is provided with a key hole 1c and a voltage interface 1D, the instrument housing 1 is internally provided with an acquisition module 11, an a/D conversion processing module 12, a key module 13, a driving module 14 and a display module 15, the voltage interface 1D is electrically connected with the acquisition module 11, two ends of the resistor disc 2 are respectively electrically connected with the acquisition module 11 through connecting wires, the acquisition module 11, the key module 13 and the driving module 14 are respectively electrically connected with the a/D conversion processing module 12, the display module 15 is electrically connected with the driving module 14, the display module 15 is installed on the display port 1a, and the key module 13 is installed on the key hole 1 c.

Specifically, the connecting wires are electrically connected to the acquisition module 11 through the wire holes. The acquisition module 11 is a voltage and current acquisition module.

Preferably, a storage module 16 is further installed in the meter housing 1, and the storage module 16 is electrically connected to the a/D conversion processing module 12. The instrument shell 1 is also internally provided with a power module 17, and the power module 17 is electrically connected with the acquisition module 11, the driving module 14, the A/D conversion processing module 12 and the storage module 16 respectively.

Specifically, an indicator light module 18 electrically connected to the a/D conversion processing module 12 and the power supply module 17 is further installed in the meter housing 1.

During the installation, pass the connecting wire of collection end on the resistance card 2 wire hole and collection module 11 electricity is connected, backup pad 6 is placed on support column 20 and annular spacing groove, then retaining member 5 is placed in the hexagonal recess, the mounting hole of resistance card 2 should cover on retaining member 5 and resistance card 2 blocks in cyclic annular protruding edge after that, cover apron 7, through the screw with meter housing 1, backup pad 6 and apron 7 are fixed, insert the terminal of taking metal shim in the mounting hole of resistance card 2, fix the connecting wire in forceful electric power return circuit respectively on two terminals at last, then rotatory hexagonal spacing portion, make terminal and hexagon nut cooperation locking, can begin to detect.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An electric power parameter detection instrument is characterized in that: including instrument housing (1), seted up on instrument housing (1) and shown mouth (1a), demountable installation has the shunt on instrument housing (1), the shunt includes resistance card (2), movable mounting has first terminal (3) and second terminal (4) that are arranged in inserting outside forceful electric power return circuit on resistance card (2), be equipped with retaining member (5) on instrument housing (1), the part of first terminal (3), second terminal (4) passes resistance card (2) displaceable ground and cooperates the locking with retaining member (5).

2. The electrical parameter sensing instrument of claim 1, wherein: the meter casing has the advantages that the mounting opening (1b) is formed in the meter casing (1), the supporting plate (6) is arranged on the mounting opening (1b), and the resistance card (2) and the locking piece (5) are installed on the supporting plate (6) in a matched mode.

3. A power parameter measuring instrument according to claim 1 or 2, characterized in that: still be equipped with apron (7) that are located resistance card (2) top on meter housing (1), install on meter housing (1) or backup pad (6) apron (7), be equipped with the through-hole or the breach that supplies first terminal (3) and second terminal (4) to pass on apron (7).

4. The electrical parameter sensing instrument of claim 2, wherein: be equipped with first location portion (8) on backup pad (6), retaining member (5) cooperation is installed on first location portion (8).

5. An electric power parameter detection instrument according to claim 2 or 4, characterized in that: and a second positioning part (9) is arranged on the support plate (6), and the resistor disc (2) is installed on the second positioning part (9) in a matching manner.

6. The electrical parameter sensing instrument of claim 5, wherein: the second positioning part (9) is provided with a limiting part (10), and the resistor disc (2) is clamped between the second positioning part (9) and the limiting part (10).

7. The electrical parameter sensing instrument of claim 1, wherein: the first binding post (3) and the second binding post (4) are in threaded connection with the locking piece (5) respectively.

8. The electrical parameter sensing instrument of claim 1, wherein: be equipped with key hole (1c) and voltage interface (1D) on instrument casing (1), install collection module (11), AD conversion processing module (12), button module (13), drive module (14) and display module (15) in instrument casing (1), voltage interface (1D) is connected with collection module (11) electricity, the both ends of resistance card (2) are connected with collection module (11) electricity through connecting wire respectively, collection module (11), button module (13), drive module (14) are connected with AD conversion processing module (12) electricity respectively, display module (15) are connected with drive module (14) electricity, install on showing mouthful (1a) display module (15), button module (13) are installed on key hole (1 c).

9. The electrical parameter sensing instrument of claim 8, wherein: still install storage module (16) in meter housing (1), storage module (16) are connected with AD conversion processing module (12) electricity.

10. A power parameter measuring instrument according to claim 8 or 9, characterized in that: still install power module (17) in meter housing (1), power module (17) are connected with collection module (11), drive module (14), AD conversion processing module (12) electricity respectively.