CN108398585A - Clamp-shaped electrical measuring instrument - Google Patents

Abstract

The invention discloses a clamp-on electrical measuring instrument, which is characterized in that a plurality of indicator lamps are arranged on the clamp jaws, so that an operator can directly watch the indicator lamps to obtain current data immediately.

Description

Clamp Electrical Meter

technical field

The present invention is only used to measure the measuring instrument of data data such as electric current, voltage of electric wire.

Background technique

A general pincer electrical measuring instrument refers to a tester in which a voltmeter is provided with a pair of pincer claws. The clamp clip is used to obtain the current signal of the electrical wire for testing. Today's clamp electrical measuring instrument has more measurement functions, and some voltage measurement functions are added to the processor. Today's clamp-on electrical measuring instruments have the basic functions of a digital multimeter (DMM). Among them, US6975104B2 discloses a clamp-on electrical measuring instrument with two screens. The clamp-on electrical measuring instrument transmits the obtained current and voltage signals to the display panel to read the However, once the display panel fails, the user cannot know the current data; in addition, the user cannot immediately know whether the object under test is energized, so there are concerns about safety, or the user cannot.

Contents of the invention

For the purpose of improving and increasing safety functions, the present invention provides a pincer electrical measuring instrument, in which a plurality of indicator lights are arranged on the jaws of the pincer electrical measuring instrument. That is to say, in addition to reading the test data through the screen, the user can intuitively know whether the object under test is energized and what the current data range is through the indicator light on the claws, so that the user can immediately know the measured object The current and voltage of the object to avoid accidental contact and injury.

The clamp-type electrical measuring instrument provided by the present invention includes a main body with a built-in processor, which can process various electrical parameters measured, such as AC voltage, DC voltage, resistance and current; and, the main body It is equipped with a display screen and multiple buttons, usually set on the front of the body;

And, a first claw and a second claw, the first claw and the second claw are pivotally arranged on the top of the body to provide current and voltage detection functions; the first claw and the second claw Corresponding to each other, they can be closed or opened; and, the first jaw and the second jaw both have a first end and an extended second end, and a first end is provided between the first end and the second end. The current transformer and the second current transformer, the first current transformer and the second current transformer are stacked one by one by a plurality of silicon steel sheets, and each sheet will have an insulating coating on the outside, the first current transformer When the transformer and the second current transformer receive an electromagnetic signal of current or voltage or resistance, the signal will be transmitted to a sensing component; and the mutual second ends of the first jaw and the second jaw are correspondingly closed A test space area is formed, and the first current transformer and the second current transformer set by the first jaw and the second jaw correspond to each other to form a test space area for the induced current magnetic force. The test space area is used for sensing current flow; and the surface between the first end and the second end is provided with a plurality of indicator lights, the indicator lights are arranged along the shape of the claws, the sensing component has a circuit connected to the indicator light and the circuit is also Connected to the main body processor, whereby the test space area provides the object under test to enter, and through entering the test space area, the first current transformer and the second current transformer sense the signal of the object under test, the signal The first current transformer and the second current transformer corresponding to each other of the first jaw and the second jaw form a magnetic field to directly obtain the current signal, and transmit the signal to the sensing component through the first current transformer and the second current transformer , the sensing component transmits the signal to the indicator light and the main body processor, and the multiple indicator lights on the first jaw and the second jaw can directly display the approximate current data according to the current signal by the amount of light emitted by the indicator light, and The display screen of the main body will also display obvious data of current and voltage signals.

Description of drawings

Fig. 1 is a combination diagram of the present invention;

Fig. 2 is an exploded view of the present invention;

3 is an enlarged exploded view of the first jaw and the second jaw of the present invention;

Fig. 4 is a combined longitudinal sectional view of the present invention.

In the picture:

Main body 1; display panel 11; buttons 12, 13, 14;

The first jaw 2a; the second jaw 2b; the test space area 25;

first shell 22a1, 22a2; second shell 22b1, 22b2;

Groove portions 23a1, 23a2; first end 21; second end 22;

first current transformer 24a; second current transformer 24b; non-conductive partitions 28a, 28b;

Indicator light 26; Circuit 27; Circuit 28.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

The pincer electric measuring instrument of the present invention, please refer to shown in Fig. 1, comprises a main body 1, is built with processor (not shown in the drawing) in it, and this processor can process and measure various electrical parameters, such as AC voltage, DC voltage, resistance and current; the main body 1 is provided with a display panel 11, which is usually arranged in front of the main body 1; and, it also includes a plurality of buttons 12, 13, 14, and the buttons 13 control the program for converting and processing signals , such as converting and processing current signals or voltage, resistance signals, etc., the button 12 is used as a switch and a switching program.

The first jaw 2a and the second jaw 2b, the first jaw 2a and the second jaw 2b are located on the top of the body 1 and extend as shown in Figure 2 and Figure 3, the first jaw 2a and the second jaw 2b can be closed or opened, wherein the first jaw 2a and the second jaw 2b form a test space area 25 when they are closed corresponding to each other; and the button 14 is formed by the first end of the first jaw 2a. 21 is extended and formed, and the opening and closing of the first jaw 2a and the second jaw 2b are controlled by the button 14; 22a2 and the second shells 22b1, 22b2 are combined correspondingly, wherein the first shells 22a1, 22a2 are provided with grooves 23a1, 23a2; and, the first jaw 2a and the second jaw 2b have a first end 21 and an extended The second end 22, wherein the groove portion 23a1 of the first shell 22a1 is embedded with a first current transformer 24a and the groove portion 23a2 is embedded with a second current transformer 24b, as shown in Figure 3 and Figure 4, and then the second shell 22b1 , 22b2 correspond to cover the first shells 22a1, 22a2 to form the first jaw 2a and the second jaw 2b; and, the first ends 21 of the first jaw 2a and the second jaw 2b are respectively provided with non-conductive partitions 28a and, the second end 22 of the first jaw 2a and the second jaw 2b is respectively provided with a non-conductive partition 28b; thereby, when the first jaw 2a and the second end 22 of the second jaw 2b are closed mutually , the first end 21 and the second end 22 are separated by non-conductive partitions 28a, 28b so that the mutual contact surfaces of the first end 21 and the second end 22 will not conduct electricity, and the built-in first current transformer 24a The second current transformer 24b is the electromagnetic field corresponding to the induced current, so that the space corresponding to the first jaw 2a and the second jaw 2b forms a test space area 25, and the test space area 25 is used to sense the measured The electromagnetic field formed by the current of the object, so the first current transformer 24a and the second current transformer 24b form an electromagnetic field signal after corresponding to the electromagnetic field of the measured object; and, the surfaces of the first jaw 2a and the second jaw 2b are provided with A plurality of indicator lights 26, the indicator lights 26 are arranged along the shape of the first jaw 2a and the second jaw 2b, and each indicator light 26 is marked with a current number; and the circuit of the indicator light 26 is connected to the first current transformer 24a and the second current transformer 24b; and, the power source of the indicator light 26 is the power supply of the circuit 28 connected to the main body 1, whereby the test space area 25 provides the object under test to enter, in the test space area 25 via the first current The transformer 24a and the second current transformer 24b correspond to the electromagnetic field generated by the current of the measured object, corresponding to the electromagnetic field that senses the current of the measured object, and the electromagnetic field signal is connected to the second current transformer 24b via the first current transformer 24a The sensing component (not shown in the figure) obtains the electromagnetic field signal, and the indicator light 26 directly displays the number of lights according to the measured electromagnetic field signal; another definition is when the first jaw 2a and the second jaw 2b sense a voltage or current, the The indicator lights 26 of the first jaw 2a and the second jaw 2b will increase or decrease the number of indicator lights according to the obtained current signal, which can remind and warn the user more clearly.

And, connect the sensing component via the first current transformer 24a and the second current transformer 24b to obtain the electromagnetic field signal, and then the sensing component directly displays the number of power generation lights through the indicator light 26, and additionally passes through the circuit 27 Then the signal is transmitted to the main body 1 processor (not shown in the figure), and the display screen 11 of the main body 1 will also display the detailed data of the current and voltage signals.

The above-mentioned embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the present invention shall be determined by the claims.

Claims (5)

1. a kind of pincer electric measurement instrument, which is characterized in that including：One main body, built-in to be equipped with processor, which can locate Reason and the various electric parameters of measurement；And the main body is equipped with display screen and multiple buttons, before being generally arranged at ontology Face；

One first chela, the second chela, first chela, the second chela are hubbed at the top of ontology；And first pincers Pawl, the second chela in correspondence with each other, can be mutually closed and mutually open；First chela, the second chela have first end and second End, the first end is to being respectively equipped with the first current transformer and the second current transformer between second end, first Current Mutual Inductance Device connect a sensing component with the second current transformer；And the second end of a pair of of chela corresponds to be closed and forms test sky Between area make two chelas by set the first current transformer and the second current transformer induced current magnetic field in correspondence with each other It is correspondingly formed the test space area in magnetic field, which is for sensing electromagnetic field signal caused by electric current flowing； And the first end is equipped with multiple indicator lights, the sense of the first current transformer and the second current transformer to the face between second end Survey assembly circuit be connected to indicator light should and circuit be also connected to subject processor, the test space area provides tested whereby Thus object enters, via test space area is entered, first current transformer and the second current transformer sense measured object Current or voltage electromagnetic field, the measured object enter the first chela, the second chela test space area, the first current transformer It senses the electromagnetic field of measured object, therefore directly corresponding generation electromagnetic field signal in correspondence with each other with the second current transformer, and passes through The sensing component connecting is transmitted signals to the second current transformer by the first current transformer and obtains electromagnetic field signal, sensing group Electromagnetic field signal point is transmitted to indicator light again and is converted into out the electromagnetic field data with ontology processor by part, can by the first chela, Multiple indicator lamp signals above second chela directly show current data according to current signal by indicator light amount of luminescence, and The display screen of main body can also show the apparent data of electric current, voltage signal.

2. pincer electric measurement instrument according to claim 1, which is characterized in that wherein the multiple indicator light is along first The shaped formation of chela and the second chela, and it is labeled with current digital by each indicator light.

3. a kind of pincer electric measurement instrument, including a main body, built-in to be equipped with processor, which can handle and measure various Electric parameter, the electric parameter include alternating voltage, resistance and electric current；The main body is equipped with display panel, is generally arranged at Before ontology；And further include being equipped at least one button, electric parameter program should be handled by key control operational transformation；With And one first chela and the second chela, first chela and the second chela are hubbed at the top of ontology, the first chela and the second pincers Pawl can be mutually closed and open, wherein first chela and the second chela are to form a test sky when being closed in correspondence with each other Between area；And the button is extended to form by the first chela first end, borrows the unlatching by key control the first chela and the second chela With closure；First chela and the second chela are arranged with one first current transformer and the second current transformer；First chela and A test space area is formed in mutual corresponding space in correspondence with each other when two chelas are mutually closed, the test space area is by built-in The first current transformer and the second current transformer in correspondence with each other measured object current field generate electromagnetic field signal；

It is characterized in that：The face of described first chela and the second chela is equipped with multiple indicator lights, and the indicator light is along the first pincers The shaped formation of pawl and the second chela, and it is labeled with current digital by each indicator light；And the first electricity of circuit connection of indicator light Current transformer and the second current transformer, whereby the test space area provide measured object and thus enter, it is mutual via the first electric current The sensor electromagnetic field for generating magnetic field and sensing the electric current of measured object in test space area corresponding with the second current transformer, the electromagnetic field Signal is conducted to sensing component via the first current transformer and the second current transformer and obtains signal, and straight according to measured signal It connects and is shown with amount of luminescence by indicator light.

4. pincer electric measurement instrument according to claim 3, which is characterized in that wherein, indicator light power source is circuit Connect the power supply of ontology.

5. pincer electric measurement instrument according to claim 3, which is characterized in that wherein, the sensing component divides signal It is transmitted to ontology processor, electric current, voltage signal, resistance are shown via the display screen of main body.