CN209372932U - A kind of multimeter electricity consumption stream inductive component and multimeter external member - Google Patents
A kind of multimeter electricity consumption stream inductive component and multimeter external member Download PDFInfo
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- CN209372932U CN209372932U CN201821651218.3U CN201821651218U CN209372932U CN 209372932 U CN209372932 U CN 209372932U CN 201821651218 U CN201821651218 U CN 201821651218U CN 209372932 U CN209372932 U CN 209372932U
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- multimeter
- inductive component
- electricity consumption
- electric current
- secondary coil
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Abstract
The utility model provides a kind of multimeter electricity consumption stream inductive component and multimeter external member, is related to electric system detection technique field.The electric current inductive component mainly includes iron core, secondary coil and patchcord.Patchcord one end is provided with plug, and the other end is connected with secondary coil.Secondary coil is set around on iron core.The electric current inductive component is main and multimeter is used in conjunction, and under the premise of current loop to be measured is without open circuit, measures to the size of current in current loop to be measured.According to electromagnetic induction principle, magnetic field is generated around tested current loop, induces electric current in secondary coil using electromagnetic induction.Patchcord one end connects secondary coil, and the plug on the patchcord other end is plugged on multimeter, and the size of electric current in tested current loop can be read by multimeter.Operator no longer needs additionally to carry the dedicated split-core type meter of measurement electric current, only need to carry common multimeter, then take electric current inductive component, carries more convenient.
Description
Technical field
The utility model relates to electric system detection technique fields, answer in particular to a kind of multimeter electricity consumption influenza
Component and multimeter external member.
Background technique
Multimeter not only can be used to measure resistance, the combined-voltage of object being measured, can also measure alterating and direct current
Stream, or even the multimeter having can also measure the major parameter of transistor and the capacitance of capacitor etc..It is sufficiently skilled to grasp
The application method of multimeter is one of most basic technical ability of electronic technology.Common multimeter has pointer multimeter and digital
Multimeter.Pointer multimeter is the multi-functional measurement instrument using gauge outfit as core component, and measured value is indicated to read by meter pointer
It takes.The measured value of digimer is directly shown that it is convenient to read, some also have language by liquid crystal display in digital form
Sound prompt facility.Multimeter is a public gauge outfit, and collecting voltage table, ammeter and ohmmeter are in the instrument of one.But due to
In power generation, current loop cannot open a way, and the necessary open circuit measurement of multimeter measurement electric current, so ten thousand in relay protection work
It is not almost used with the current measurement function of table.It such as needs to measure electric current at work, then must use dedicated split-core type meter.
Utility model content
The purpose of this utility model is to provide a kind of multimeter electricity consumption stream inductive components, multimeter can be assisted to electricity
The size of current flowed back in road measures.
The another object of the utility model is to provide a kind of multimeter external member, user can be facilitated to carry, facilitate use
Family measures various data, improves user job efficiency.
The embodiments of the present invention are achieved in that
A kind of multimeter electricity consumption stream inductive component, including iron core, secondary coil and patchcord.Patchcord one end is provided with
Plug, the other end are connected with secondary coil.Secondary coil is set around on iron core.
In an embodiment of the present invention, plug is banana plug.
In an embodiment of the present invention, multimeter electricity consumption stream inductive component further includes insulated handle.Iron core packet
Include the energy mutually first part of open or close and second part.First part is connected with insulated handle with second part.Turn
Wiring runs through insulated handle.
It is logical that the test formed is limited in an embodiment of the present invention, after first part and second part closure
The aperture in hole is 1.2-1.7 centimetres.
In an embodiment of the present invention, first part is fixedly connected with insulated handle, second part and insulation
Handle rotation connection.
In an embodiment of the present invention, side of the first part far from second part, first part top
The first insulation shell is respectively connected with bottom.The top and bottom of side and second part of the second part far from first part
It is respectively connected with the second insulation shell.
In an embodiment of the present invention, first part is provided with protrusion far from one end of insulated handle.Second
One end of insulated handle is provided with the groove being mutually matched with protrusion.
In an embodiment of the present invention, insulated handle, which is provided with, to be opened for controlling first part with second part
The switch of conjunction.
In an embodiment of the present invention, insulated handle is provided with wire winding tube far from one end of iron core.Wire winding tube
Diameter be gradually reduced along the direction of iron core to plug, patchcord run through wire winding tube.
A kind of multimeter external member, including multimeter and any one of the above multimeter electricity consumption stream inductive component, multimeter with
Plug is detachably connected.
The utility model embodiment at least have the following advantages that or the utility model has the advantages that
The utility model embodiment provides a kind of multimeter electricity consumption stream inductive component, which mainly includes iron
Core, secondary coil and patchcord.Patchcord one end is provided with plug, and the other end is connected with secondary coil.Secondary coil winding
In on iron core.The electric current inductive component is main and multimeter is used in conjunction, under the premise of current loop to be measured is without open circuit, to be measured
Size of current in current loop measures.Multimeter itself can measure electric current, but must unlock wiring, connect
Circuit both ends.But actual measurement work in, do not allow current open, do not allow to unlock wiring (avoid to survey crew with
Come dangerous；Avoid influencing the performance of current transformer), so the current gear of multimeter is unable to get abundant benefit in actual operation
With.So that current loop to be measured is passed through iron core, according to electromagnetic induction principle, generates magnetic field around tested current loop, utilize electricity
Magnetic induction induces electric current in secondary coil.Patchcord one end connects secondary coil, the plug grafting on the patchcord other end
To multimeter, the size of electric current in tested current loop can be read by multimeter.In the present embodiment, it is tested size of current
The relationship for being 1:1 with the display size of current on multimeter, i.e., the size of current measured on multimeter are tested current loop
In size of current.Operator no longer needs additionally to carry the dedicated split-core type meter of measurement electric current, need to only carry common general-purpose
Table, then take electric current inductive component.Since electric current inductive component structure is simple, for operator, general-purpose is carried
Table and electric current inductive component are more convenient.
The present embodiment also provides a kind of multimeter external member, mainly includes multimeter and above-mentioned electric current inductive component.General-purpose
Table and plug are detachably connected.The multimeter external member improves the work convenience of operator, greatly improves operator's
Detect working efficiency.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of electric current inductive component provided by the embodiment of the utility model；
Fig. 2 is first part provided by the embodiment of the utility model and second part with respect to status diagram when opening.
Icon: 100- electric current inductive component；102- iron core；104- patchcord；106- plug；108- insulated handle；110-
First part；112- second part；114- tests through-hole；The first insulation shell of 116-；The second insulation shell of 118-；119- protrusion；
120- switch；122- wire winding tube.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the utility model embodiment, it should be noted that if occur term " on ", "inner", etc. instructions
Orientation or positional relationship is to be based on the orientation or positional relationship shown in the drawings or when utility model product use usually puts
The orientation or positional relationship put, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion is signified
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this is practical
Novel limitation.In addition, term " first ", " second " etc. are only used for distinguishing description, it is not understood to indicate or imply opposite
Importance.
In the description of the utility model embodiment, it is also necessary to which explanation is unless specifically defined or limited otherwise, if
Appearance term " setting ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to detachably connect
It connects, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediate matchmaker can also be passed through
Jie is indirectly connected, and can be the connection inside two elements.It for the ordinary skill in the art, can be according to specific
Situation understands the concrete meaning of above-mentioned term in the present invention.
Embodiment
Fig. 1 is please referred to, Fig. 1 show the structural schematic diagram of electric current inductive component 100.The present embodiment provides a kind of electric current senses
Component 100 is answered, is mainly used in conjunction with multimeter, auxiliary multimeter is under the premise of current loop to be measured is without open circuit, to be measured
Size of current in current loop measures.
Multimeter itself can measure electric current, but must unlock wiring, connect at circuit both ends.But in practical survey
It measures in work, does not allow current open, do not allow to unlock wiring and (avoid bringing danger to survey crew；Avoid influence electric current mutual
The performance of sensor), so the current gear of multimeter is unable to get makes full use of in actual operation.
Electric current inductive component 100 mainly includes iron core 102, secondary coil (not shown) and patchcord 104.Switching
104 one end of line is provided with plug 106, and the other end is connected with secondary coil.Secondary coil is set around on iron core 102.Make electricity to be measured
Road is flowed back to across iron core 102, according to electromagnetic induction principle, magnetic field is generated around tested current loop, is existed using electromagnetic induction
Electric current is induced in secondary coil.104 one end of patchcord connects secondary coil, 106 grafting of plug on 104 other end of patchcord
To multimeter, the size of electric current in tested current loop can be read by multimeter.In the present embodiment, it is tested size of current
The relationship for being 1:1 with the display size of current on multimeter, i.e., the size of current measured on multimeter are tested current loop
In size of current.Operator no longer needs additionally to carry the dedicated split-core type meter of measurement electric current, need to only carry common general-purpose
Table, then take electric current inductive component 100.Since 100 structure of electric current inductive component is simple, for operator, take
Band multimeter and electric current inductive component 100 are more convenient.
In the present embodiment, plug 106 selects banana plug.The name of this banana plug is heaved outer slightly from it
Shape.It is inserted into very convenient when the positive hole of multipurpose socket, very big contact area can also be formed after insertion.Certainly, other
In embodiment, plug 106 can also select other types.
There are two plug 106 is general, one of them is for accessing the common end on multimeter, another is for accessing general-purpose
Current gear on table.
Electric current inductive component 100 further includes insulated handle 108.Iron core 102 includes first of energy mutually open or close
Divide 110 and second part 112.First part 110 is connected with insulated handle 108 with second part 112.Patchcord 104 runs through
Insulated handle 108.The connection type of iron core 102 and secondary coil is referred to existing split-core type meter (brand: MESTEK；Model:
CM80)。
State when being closed shown in Fig. 1 for first part 110 and second part 112.First part 110 and second
The aperture of the test through-hole 114 formed is limited as 1.2-1.7 centimetres (being 1.5 centimetres in the present embodiment) after dividing 112 closures.
In the present embodiment, first part 110 is fixedly connected with insulated handle 108, second part 112 and insulated handle 108
Rotation connection.Certainly, in other embodiments, first part 110 and second part 112 can also be rotated with insulated handle 108
Connection, is able to achieve two-part opening and closing.The connection type of two parts and insulated handle 108 is referred to existing
Split-core type meter (brand: MESTEK；Model: CM80).
To improve the safety used, side and first part 110 of the first part 110 far from second part 112
Top and bottom are respectively connected with the first insulation shell 116.Side and second part of the second part 112 far from first part 110
112 top and bottom are respectively connected with the second insulation shell 118.Only it is observed that first part 110 and second part 112 in Fig. 1
The inner wall of exposing.
Referring to figure 2., Fig. 2 show first part 110 and second part 112 with respect to status diagram when opening.Into
One step to there is magnetic flux leakage after avoiding first part 110 and second part 112 from being closed, and then influences the standard of measurement result
True property, first part 110 far from one end of insulated handle 108 is provided with protrusion 119, and (protrusion 119 can be and first part 110
It is integrally formed, is also possible to be separately provided).Second part 112 is provided with and raised 119 phases far from one end of insulated handle 108
Mutual matched groove (not shown).
The switch 120 for controlling first part 110 and the folding of second part 112 is additionally provided on insulated handle 108.It opens
Closing 120 can be set to the folding that first part 110 and second part 112 are controlled by sliding into different location；Switch 120
It can be set to the folding by pressing control first part 110 and second part 112.It is not especially limited in the present embodiment,
It only needs to guarantee to control two-part folding by switch 120.Such as be referred to existing split-core type meter (brand:
MESTEK；Model: CM80) on set folding control mode.
Insulated handle 108 is provided with wire winding tube 122 far from one end of iron core 102.The diameter of wire winding tube 122 is along iron core 102
It is gradually reduced to the direction of plug 106, as shown in Figure 1.Patchcord 104 runs through wire winding tube 122.The setting can be fixed preferably
Patchcord 104 avoids patchcord 104 and the junction of secondary coil from easily being damaged by more pull.It is possible to further
Patchcord 104 is fixed in wire winding tube 122, can be pierced by fill at the position of wire winding tube 122 to patchcord 104 some has
The substance (such as glue, pitch etc.) of effect is adhesively fixed, prevents patchcord 104 from being freely rotated in wire winding tube 122.This sets
Set the connective stability that can preferably improve patchcord 104 Yu secondary coil.
The working principle of electric current inductive component 100 is:
The current gear two plugs 106 being respectively connected on the common end and multimeter on multimeter.Operation switch 120,
Rotate second part 112, first part 110 and the opposite opening of second part 112, in state shown in Fig. 2, so that electric current to be measured
Circuit (i.e. conducting wire) is located in test through-hole 114, and current loop to be measured is in the state through test through-hole 114.It operates out again
120 are closed, keeps first part 110 and second part 112 relatively closed, is in state shown in FIG. 1.According to electromagnetic induction principle, quilt
It surveys around current loop and generates magnetic field, induce electric current in secondary coil using electromagnetic induction.It is induced in secondary coil
Electric current multimeter is directed by patchcord 104.The size of electric current in tested current loop is read by multimeter.Tested electricity
The relationship that the display size of current on size and multimeter is 1:1 is flowed, i.e., the size of current measured on multimeter is tested electricity
Flow back to the size of current in road.Operator no longer needs additionally to carry the dedicated split-core type meter of measurement electric current, need to only carry common
Multimeter, then take electric current inductive component 100.Since 100 structure of electric current inductive component is simple, operator is come
It says, carries multimeter and electric current inductive component 100 is more convenient, detect the efficiency of work also more using the cooperation of the two
It is high.
The present embodiment also provides a kind of multimeter external member (not shown), mainly includes multimeter and above-mentioned electric current sense
Answer component 100.Multimeter and plug 106 are detachably connected.The multimeter external member improves the work convenience of operator, greatly
The big detection working efficiency for improving operator.
The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (9)
1. a kind of multimeter electricity consumption stream inductive component, which is characterized in that including iron core, secondary coil and patchcord, described turn
Wiring one end is provided with plug, and the other end is connected with the secondary coil, and the secondary coil is set around on the iron core；
The multimeter electricity consumption stream inductive component further includes insulated handle, and the iron core includes the first of energy mutually open or close
Part and second part, the first part are connected with the insulated handle with the second part, and the patchcord runs through
The insulated handle.
2. multimeter electricity consumption stream inductive component according to claim 1, which is characterized in that the plug is banana plug.
3. multimeter electricity consumption stream inductive component according to claim 1, which is characterized in that the first part and described the
The aperture of the test through-hole formed is limited after the closure of two parts as 1.2-1.7 centimetres.
4. multimeter electricity consumption stream inductive component according to claim 1, which is characterized in that the first part and it is described absolutely
Edge handle is fixedly connected, and the second part and the insulated handle are rotatablely connected.
5. multimeter electricity consumption stream inductive component according to claim 1, which is characterized in that the first part is far from described
The first insulation shell is respectively connected at the top and bottom of the side of second part, the first part, the second part is far from institute
It states and is respectively connected with the second insulation shell at the top and bottom of the side and the second part of first part.
6. multimeter electricity consumption stream inductive component according to claim 1, which is characterized in that the first part is far from described
One end of insulated handle is provided with protrusion, and the second part is provided with and the raised phase far from one end of the insulated handle
Mutual matched groove.
7. multimeter electricity consumption stream inductive component according to claim 1, which is characterized in that the insulated handle setting is useful
In the switch for controlling the first part and second part folding.
8. multimeter electricity consumption stream inductive component according to claim 1-7, which is characterized in that the insulated handle
One end far from the iron core is provided with wire winding tube, the diameter of the wire winding tube along the iron core to the direction of the plug gradually
It reduces, the patchcord runs through the wire winding tube.
9. a kind of multimeter external member, which is characterized in that used including multimeter and such as the described in any item multimeters of claim 1-8
Electric current inductive component, the multimeter are detachably connected with the plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821651218.3U CN209372932U (en) | 2018-10-11 | 2018-10-11 | A kind of multimeter electricity consumption stream inductive component and multimeter external member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821651218.3U CN209372932U (en) | 2018-10-11 | 2018-10-11 | A kind of multimeter electricity consumption stream inductive component and multimeter external member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209372932U true CN209372932U (en) | 2019-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821651218.3U Active CN209372932U (en) | 2018-10-11 | 2018-10-11 | A kind of multimeter electricity consumption stream inductive component and multimeter external member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209372932U (en) |
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2018
- 2018-10-11 CN CN201821651218.3U patent/CN209372932U/en active Active
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