CN213364814U

CN213364814U - High-precision shunt

Info

Publication number: CN213364814U
Application number: CN202021813860.4U
Authority: CN
Inventors: 严春佳
Original assignee: Jiaxing Changhong Copper Co ltd
Current assignee: Jiaxing Changhong Copper Co ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-06-04
Anticipated expiration: 2030-08-27

Abstract

The utility model discloses a high-precision flow divider, which comprises a base, wherein the surface of the base is provided with two pistons, the surface of the piston is matched and slidably connected with a binding post, the surface of the binding post is fixedly connected with an insulating cap, the inner wall of the base is provided with two sliding bins, the inner wall of each sliding bin is provided with two rotating shafts, the surface of the rotating shaft is matched and rotatably connected with a threaded rod, the surface of the threaded rod is matched and rotatably connected with an insulating threaded block, the surface of the insulating thread block is provided with a conductor, the surface of the base is provided with a resistor A, one side of the surface of the base is provided with a resistor B, one side of the surface of the base is provided with a resistor C, the connection with the resistor A, the resistor B and the resistor C is realized by mutually matching the insulating thread block and the conductor, the precision is increased by changing different resistors, and timely protection is performed through the insulating cap.

Description

High-precision shunt

Technical Field

The utility model relates to a current high accuracy divides a class ware technical field, specifically is a high accuracy divides a class ware.

Background

The shunt is an instrument for measuring direct current, and is made according to the principle that when direct current passes through a resistor, voltage is generated at two ends of the resistor, and is generally used for enlarging the fixed-value low-resistance of large current range, and can be selected according to the mV marked on the dial of the ammeter and the current range to be enlarged.

Patent CN202102011U has disclosed a high accuracy current divider, and this utility model relates to a high accuracy current divider, including end piece and resistance card, the resistance card welding sets up a terminal on every end piece between two end pieces, and the terminal exports the voltage between two end pieces at this high accuracy current divider during operation. Implement the utility model provides a high accuracy shunt has following beneficial effect: the precision is high, and the power consumption is low; the sampling line is changed into a binding post, so that the installation and use of a user are facilitated; is an energy-saving and environment-friendly product and fills the domestic blank.

The high-precision shunt has the following defects: 1. when the high-precision shunt is used, the resistance of the shunt cannot be well controlled, so that the precision is reduced; 2. when a high-precision shunt is used, no protection measure is provided, so that the danger in subsequent use is greatly increased. Therefore, we propose a high precision splitter.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high accuracy shunt mutually supports through insulating screw block and conductor and realizes linking to each other with resistance A resistance B and resistance C, increases the precision through changing different resistance, carries out timely protection through the insulator cap, has solved the problem that proposes in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high accuracy shunt, includes the base, base surface mounting has piston and piston two, piston surface cooperation sliding connection has the terminal, terminal fixed surface is connected with the insulator cap, inner wall of the base installs sliding chamber and sliding chamber has two, sliding chamber inner wall installs pivot and pivot has two, pivot surface cooperation rotates and is connected with the threaded rod, threaded rod surface cooperation rotates and is connected with insulating thread piece, insulating thread piece surface mounting has the conductor, base surface mounting has resistance A, resistance B is installed to base surface one side, resistance C is installed to base surface one side.

As a preferred embodiment of the present invention, the resistor a, the resistor B, and the resistor C are connected through a resistor D.

As a preferred embodiment of the present invention, the conductor may be connected to the resistor a, the resistor B, and the resistor C, respectively.

As a preferred embodiment of the present invention, the resistance a is smaller than the resistance B, and the resistance B is smaller than the resistance C.

As a preferred embodiment of the present invention, the terminal is connected to the conductor through a wire.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the shunt is an instrument for measuring direct current, and is made according to the principle that when direct current passes through a resistor, voltage is generated at two ends of the resistor, not all the current is the same resistance value, at the moment, when the high-precision shunt is used, because the resistor A is arranged on the surface of the base, the resistor B is arranged on one side of the surface of the base, the resistor C is arranged on one side of the surface of the base, the resistor A is smaller than the resistor B, and the resistor B is smaller than the resistor C, multiple choices can be made, proper resistors can be used for measurement in proper environment, the precision is greatly increased, when the resistor is selected in a sliding mode, the insulating thread block is pushed, the threaded rod is driven to rotate, and therefore, the insulating thread block can be stably pushed to contact a conductor and the resistor, and when the resistance value is not enough, because the resistor A, The resistor B and the resistor C are connected through the resistor D, and the two insulating thread blocks are not mutually connected, so that the effect that a plurality of resistors are connected together to provide the resistors can be realized, the whole resistance range is greatly increased, and the precision range is improved.

2. When the high-precision current divider is used, the binding post is connected with the conductor through a wire, so that the current circulation is ensured, at the moment, the surface of the base is provided with two pistons, the surface of the pistons is matched and slidably connected with the binding post, the surface of the binding post is fixedly connected with an insulating cap, when the wiring port is connected with the binding post, a current passage can be realized, the normal measurement can be normally carried out, when danger occurs, the insulating cap is pressed down forcibly, so that the wiring port is pushed up under the limiting action of the base, the insulating cap adopts a gradually-reduced design during design, so that the contact between the wiring port and the insulating cap is effectively prevented, the circuit is disconnected, the circuit is protected, the surface of the piston is made of rubber, therefore, the binding post can be effectively positioned, and the binding post is prevented from falling under the condition of no external force.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic view of the overall structure of the high-precision splitter of the present invention;

fig. 2 is the schematic diagram of the terminal structure of the high-precision current divider of the present invention.

In the figure: 1. a base; 2. a binding post; 3. a rotating shaft; 4. a threaded rod; 5. an insulating thread block; 6. a conductor; 7. a resistance A; 8. a resistance B; 9. a resistance C; 10. a resistance D; 11. an insulating cap; 12. a piston; 13. and a sliding bin.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected" and "disposed" are to be interpreted broadly, and may be, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed; the utility model discloses in provide only supply the reference with the model of electrical apparatus. For those skilled in the art, different types of electrical appliances with the same function can be replaced according to actual use conditions, and for those skilled in the art, the specific meaning of the above terms in the present invention can be understood in specific situations.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a high accuracy current divider, includes

base

1, 1 surface mounting of base has piston 12 and piston 12 to have two, 12 surface cooperation sliding connection of piston has

terminal

2, 2 fixed surface of terminal are connected with the insulating

cap

11, 1 inner wall of base is installed and is slided storehouse 13 and slide storehouse 13 and have two, it has two to slide storehouse 13 inner wall installation pivot 3 and

pivot

3, 3 surface cooperation rotations of pivot are connected with threaded

rod

4, 4 surface cooperation rotations of threaded rod are connected with insulating thread piece 5, 5 surface mounting of insulating thread piece have conductor 6, 1 surface mounting of base has resistance A7, 1 surface of base installs resistance B8 in one side, 1 surface of base installs resistance C9 in one side.

In the present embodiment (see fig. 1 and fig. 2), the insulation screw block 5 and the conductor 6 are matched with each other to connect the resistor a7, the resistor B8 and the resistor C9, the accuracy is increased by changing different resistors, and the insulation cap 11 is used for timely protection.

The resistor A7, the resistor B8 and the resistor C9 are connected through a resistor D10.

In this embodiment (see fig. 1), the resistor a7, the resistor B8, and the resistor C9 are connected through the resistor D10, so that the resistors are connected in series to increase the resistance value by connecting different resistors, and the accuracy of increasing the resistance range is improved.

Wherein, the conductor 6 can be respectively connected with a resistor A7, a resistor B8 and a resistor C9.

In this embodiment (see fig. 1), the conductor 6 can be connected to the resistor a7, the resistor B8, and the resistor C9 respectively to conduct the current in time.

The resistance A7 is smaller than the resistance B8, and the resistance B8 is smaller than the resistance C9.

In this embodiment (see fig. 1), the precision and the application range are increased by changing the resistance.

Wherein the binding post 2 is connected with the conductor 6 through a lead.

In this embodiment (see fig. 1), the terminal 2 is connected to the conductor 6 through a wire to make the whole device in a pass-through state.

It should be noted that the utility model relates to a high-precision shunt, which comprises a base 1; 2. a binding post; 3. a rotating shaft; 4. a threaded rod; 5. an insulating thread block; 6. a conductor; 7. a resistance A; 8. a resistance B; 9. a resistance C; 10. a resistance D; 11. an insulating cap; 12. a piston; 13. the sliding cabin and the components are all universal standard components or components known by those skilled in the art, the structure and principle of the sliding cabin are known by technical manuals or known by conventional experimental methods, at the idle position of the device, all the electric devices in the above are referred to as power elements, electric devices, adaptive monitoring computers and power supplies and are connected through wires, the specific connecting means refers to the following working principle that the electric devices are electrically connected in sequence, the detailed connecting means is a technology known in the art, the working principle and process are mainly described below, no description is made on electric control, when in work, because the surface of the base 1 is provided with the resistor A7, the surface of the base 1 is provided with the resistor B8, the surface of the base 1 is provided with the resistor C9, the resistor A7 is smaller than the resistor B8, and the resistor B8 is smaller than the resistor C9, therefore, various choices can be made, a proper resistor is used for measurement in a proper environment, the precision is greatly improved, when the resistor is selected in a sliding mode, the insulating thread block 5 is pushed, the threaded rod 4 is driven to rotate at the moment, the insulating thread block 5 can be stably pushed to achieve the contact between the conductor 6 and the resistor, when the resistance is insufficient, because the resistor A7, the resistor B8 and the resistor C9 are connected through the resistor D10, and the two insulating thread blocks 5 are not mutually connected, the effect that the resistors are connected together to provide the resistor can be realized, the whole resistance range is greatly increased, the precision range is improved, the wiring terminal 2 is connected for measurement at the moment, because the wiring terminal 2 is connected with the conductor 6 through a conducting wire, the current circulation is ensured, at the moment, the piston 12 is arranged on the surface of the base 1, the piston 12 is provided with two, the surface of the piston 12 is matched with the wiring terminal 2 in a sliding mode, 2 fixed surface of terminal 2 is connected with insulating cap 11, both can realize the route of electric current when the wiring mouth links to each other with terminal 2, at this moment both can normally measure, when dangerous, only need press insulating cap 11 hard, will like this will be under the effect of the restriction of base with the wiring mouth give the top up go, insulating cap 11 adopts the design that diminishes gradually when the design, just so effectually prevented the contact of wiring mouth with insulating cap 11, carry out the disconnection of circuit, protect the circuit, what adopt on the surface of piston 12 is that rubber constitutes, the effectual terminal 2 of fixing a position of opportunity like this, it falls under the condition of no external force to have prevented it.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A high accuracy shunt, includes base (1), its characterized in that: the surface of the base (1) is provided with two pistons (12) and the number of the pistons (12) is two, the surface of the piston (12) is matched and slidably connected with a binding post (2), the surface of the binding post (2) is fixedly connected with an insulating cap (11), the inner wall of the base (1) is provided with two sliding bins (13) and the number of the sliding bins (13) is two, the inner wall of the sliding bin (13) is provided with two rotating shafts (3), the surface of the rotating shaft (3) is matched and rotatably connected with a threaded rod (4), the surface of the threaded rod (4) is matched and rotatably connected with an insulating threaded block (5), a conductor (6) is arranged on the surface of the insulating thread block (5), a resistor A (7) is arranged on the surface of the base (1), base (1) surface one side installs resistance B (8), base (1) surface one side installs resistance C (9).

2. A high precision flow divider as claimed in claim 1, wherein: the resistor A (7), the resistor B (8) and the resistor C (9) are connected through a resistor D (10).

3. A high precision flow divider as claimed in claim 1, wherein: the conductor (6) can be respectively connected with a resistor A (7), a resistor B (8) and a resistor C (9).

4. A high precision flow divider as claimed in claim 1, wherein: the resistance of the resistor A (7) is smaller than the resistance of the resistor B (8), and the resistance of the resistor B (8) is smaller than the resistance of the resistor C (9).

5. A high precision flow divider as claimed in claim 1, wherein: the binding post (2) is connected with the conductor (6) through a lead.