CN207636752U - A kind of current sensor caliberating device based on electric current - Google Patents
A kind of current sensor caliberating device based on electric current Download PDFInfo
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- CN207636752U CN207636752U CN201721858956.0U CN201721858956U CN207636752U CN 207636752 U CN207636752 U CN 207636752U CN 201721858956 U CN201721858956 U CN 201721858956U CN 207636752 U CN207636752 U CN 207636752U
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Abstract
The utility model is related to current sensor detection technique fields.Purpose is to propose a kind of simple current sensor caliberating device for using and being convenient for measuring, the problem of calibrating for solving current sensor parameter.Technical solution is：A kind of current sensor caliberating device based on electric current, it is characterised in that：The device includes caliberating device upper element and caliberating device lower component；The caliberating device upper element, including cylinder body is fixed on cylinder that on device and piston rod is arranged downwards, the top top that is fixed on piston rod bottom end, travel switch shifting block connect with top top, positioned at two fixed blocks for coming directly towards the sensor holder of below an upper section and being fixed on above sensor holder；The caliberating device lower component, including it is fixed on bearing support below sensor holder, the measurement PCB that the other end forces in the spring of top lower part and is located in below sensor holder by top lower part that bearing is located in bearing support, one end are located in bearing support.
Description
Technical field
The utility model is related to current sensor detection technique fields, and in particular to a kind of current sensor based on electric current
The device of calibration.
Background technology
Current sensor is that a kind of common current measuring device passes through electric current using Hall element as sensing unit
The magnetic field size of generation realizes the measurement to electric current.Open ring type Hall current sensor is using ferromagnetic material as magnetizer.
So that the magnetic field around conductor is gathered in current sensor, Hall element is positioned at the air gap of current sensor, by Hall
Element, which measures the voltage exported, can reflect the size of current in wire.
In current sensor in use, generally the parameter of current sensor can be set as definite value, meter can be facilitated in this way
Calculate the size of current in wire.But it due to the parameter of current sensor difference, when measuring identical current in wire, can lead
It causes the voltage swing of Hall element output different, will result in measurement error in this way.Therefore, using current sensor it
Before, the parameter of Calibrated current sensor is needed, to use.
Utility model content
The purpose of this utility model is to propose a kind of simple current sensor caliberating device for using and being convenient for measuring, and is used
In the problem of calibrating for solving current sensor parameter.
Technical solution provided by the utility model is：
A kind of current sensor caliberating device based on electric current, it is characterised in that the device includes being set to device top
Caliberating device upper element and the caliberating device lower component for being set to device lower part；
The caliberating device upper element, including cylinder body be fixed on cylinder that on device and piston rod is arranged downwards,
It is fixed on piston rod bottom end and the top top of piston rod movement, the travel switch shifting block being connect with top top, position can be followed
In top below an upper section and it is fixed with the sensor holder of sensor PCB and is fixed on above sensor holder and is used to form tested
Two fixed blocks of current sensor measurement position；
The caliberating device lower component, include by several support columns be fixed on bearing support below sensor holder,
By top lower part that bearing is located in bearing support with being vertically movable, one end is located in bearing support by the other end is applied
Power is in the measurement PCB for coming directly towards the spring of lower part and being located in below sensor holder；
Correspondence is set up and down for the top top, tested current sensor measurement position, sensor PCB and top lower part
It sets.
It is fixed on sensor holder to described two spaced a distances of fixed block；The segment distance forms the quilt
Survey current sensor measurement position.
The bottom surface of the sensor holder and position corresponding with tested current sensor measurement position are offered for fixed
The sensor holder groove of level sensor PCB 32.
The cylinder body is fixed on cylinder block that is horizontally disposed and being mutually parallel with sensor holder；Left support and right support point
It does not arrange not vertically, and the left and right ends of cylinder block are connect with the upper end of left support and right support respectively, the left and right of sensor holder
Both ends are connect with the lower end of left support and right support respectively.
A horizontally disposed base board is also set up below sensor holder, carries the pedestal left part of button and carries button
Pedestal right part is arranged and connects into one with sensor holder and base board vertically respectively is more than the caliberating device lower component
Rectangular space；The left and right ends of sensor holder are connect with pedestal left part with the upper end of pedestal right part respectively, base board respectively with
Pedestal left part is connect with the lower end of pedestal right part.
The guide rail arranged vertically is provided on the inside of the left support, on the left end and guide rail of the travel switch shifting block
Sliding block connects.
When starting the parameter calibration of current sensor (referring to Fig. 2), while two buttons 271,311 are pressed, in cylinder
After 13 complete lowering action, top top 10 is connected together with top lower part 11, starts electric current and transmits and carry out electric current
The parameter calibration of sensor；After the calibration for completing current sensor measures, while two buttons are pressed, in the completion of cylinder 12
After rising action, top top is detached with top lower part, at this moment can carry out replacement current sensor, is prepared next electric current and is passed
The calibration of sensor.
The utility model has the beneficial effects that：It is capable of the parameter of easily Calibrated current sensor, reduces staking-out work
Time improves working efficiency.
Description of the drawings
Fig. 1 is the whole isometric structure chart of the utility model.
Fig. 2 is the isometric structure chart of current conductor upper element in the utility model.
Fig. 3 is the isometric structure chart of current conductor lower component in the utility model.
Fig. 4 is the isometric structure chart of sensor base in the utility model.
Fig. 5 is the bottom surface structure view of sensor base in the utility model.
Fig. 6 is the isometric structure chart of sensor PCB in the utility model.
Fig. 7 is the isometric structure chart that top is come directly towards in the utility model.
Fig. 8 is the bottom surface structure view that top is come directly towards in the utility model.
Fig. 9 is the isometric structure chart that lower part is come directly towards in the utility model.
Figure 10 is the bottom surface structure view that lower part is come directly towards in the utility model.
Figure 11 is the isometric structure chart of the utility model in the base left part.
Figure 12 is the isometric structure chart of the utility model in the base right part.
Figure 13 is the topology view that sensor and fixed block position are tested in the utility model.
Specific implementation mode
The utility model is described in detail in embodiment shown in below in conjunction with the accompanying drawings.
Shown in FIG. 1 is the overall structure figure of current sensor caliberating device, which is divided into two
Part：Caliberating device upper element (Fig. 2) and caliberating device lower component (Fig. 3).
Fig. 2 is caliberating device upper element；The partial devices include top top 10, top lower part 11, cylinder 12, piston
Bar 13, cylinder block 15, right support 16, left support 17, locating piece 20, is measured current sensor 21, passes travel switch shifting block 14
Sensor seat 26.The cylinder body of cylinder 12 is fixed on cylinder block (cylinder block of horizontally disposed plate), and cylinder block is again by left support
17 are supported with right support 16.The piston rod 13 of cylinder 12 stretches down vertically, and top top 10 is mounted on piston rod 13
Bottom end, while travel switch shifting block 14 is also disposed at top top.The track coordinated with travel switch shifting block 14 is vertically arranged in
The medial surface of left support 17；So when cylinder 12 carries out air inlet or exhaust (air pump for omitting corresponding configuration in figure), can drive
(sliding block of travel switch shifting block left end is simultaneously for piston rod 13, top top 10, the rise simultaneously of travel switch shifting block 14 or landing
It is slided along guide rail).In Fig. 2, it is measured current sensor 21 and is placed on sensor holder 26, is clipped in two fixed blocks 20
Between when, the upper end of lower part 11 is come directly towards, right through the trepanning 202 in the middle part of measured current sensor, and on movement top down
Portion is in contact.
As shown in Figure 9：When being demarcated, it is measured the centre that current sensor 21 is located in two fixed blocks 20；201 are
Threaded hole on fixed block.Trepanning 202 is located at the intermediate position for being measured current sensor 21, and top lower part 11 can be from trepanning
It is passed through in 202.
It is shown in Fig. 4, Fig. 5：The bottom surface of the sensor holder of plate is equipped with sensor holder groove 262, sensor PCB 32
(referring to Fig. 6) is fixed on sensor holder groove position, and it is recessed that the hole 321 and hole 322 on sensor PCB are aligned sensor holder respectively
The threaded hole 263 and threaded hole 264 of 262 both sides of slot (sensor PCB can be fixed by corresponding screw).
In Fig. 7, Fig. 8, it is used for connecting wire as the threaded hole 101 in the top top 10 of tauent carrying conductor, so as to
Connect external power supply；The threaded hole 102 for coming directly towards 10 bottom end of top, for stationary electrical contacts, (electric contact is used for and top lower part 11
Electrical contact).
Fig. 9, Tu10Zhong, the threaded hole 111 of top 11 bottom end of lower part as tauent carrying conductor are used to fix conducting wire, with
Just it connects external power supply and constitutes circuit closed circuit after being connected with top top；Come directly towards the boss 112 at lower central position
It is positioned for spring 19.
In Figure 11, respectively there are one key holes for pedestal left part 27, the pedestal right part 31 of current sensor caliberating device, for pacifying
Fill the air inlet button 271 and exhaust button 311 of cylinder 12.Installing two buttons is prevented in Calibrated current to detect safety
Occur during sensor unexpected.
Fig. 3 is caliberating device lower component.The partial devices include：(the preferably hexagonal copper of M5 × 25 of short support column 25
Column), dagger 24 of drawing money on credit (the preferably hexagonal copper posts of M6 × 60), measure PCB 18, spring 19, bearing 23, bearing support 22 and
Come directly towards lower part 11.It measures PCB18 to be set on the lower part of top, and positioned at 112 top of boss of top lower part, by four short supports
Column 25 is fixed, and the upper end of four short support columns is fixed on sensor holder 26.Spring 19 is set on the boss and axis of top lower part
It holds between 23.Bearing 23 is fixed in bearing support 22, the lower end fixing bearing support 22 of four daggers 24 of drawing money on credit, four long
The upper end of support column is fixed on sensor holder 26.
The action that whole device starts Calibrated current sensor is (referring to Fig. 1)：Two buttons 271,311 are pressed simultaneously,
Cylinder movement, piston rod decline；During coming directly towards the decline of top 10, spring 19 is under the action of coming directly towards boss 112 of lower part
It is compressed；After cylinder declines to a certain extent, the electricity on contact top 11 top of lower part of top top bottom end touches
Descending motion is terminated on current lead-through when point, top top；The electric current for flowing through top top and top lower part at this time generates magnetic field,
Sensor PCB can be to being carried out parameter calibration by the current sensor incuded.
The action that entire caliberating device terminates Calibrated current sensor is：Two buttons 271,311 are pressed simultaneously, and cylinder is dynamic
Make, piston rod rises；In coming directly towards 10 uphill process of top, spring 19 is carried out at the same time expansion and top lower part is pushed to rise；Top
When the travel switch shifting block on head top stirs travel switch, cylinder powers off stop motion, and comes directly towards boss and the measurement of lower part 11
When PCB18 is in contact, movement is terminated in top lower part, current sensor calibration operation stops.
Claims (6)
1. a kind of current sensor caliberating device based on electric current, it is characterised in that the device includes the mark for being set to device top
Determine device upper element and is set to the caliberating device lower component of device lower part；
The caliberating device upper element, including cylinder body be fixed on cylinder (12) that on device and piston rod is arranged downwards,
The travel switch shifting block for being fixed on piston rod bottom end and the top top (10) of piston rod movement being followed, connect with top top
(14), it positioned at top below an upper section and is fixed with the sensor holder (26) of (32) sensor PCB and is fixed on sensor holder
Side and two fixed blocks (20) for being used to form tested current sensor measurement position；
The caliberating device lower component, include by several support columns be fixed on bearing support (23) below sensor holder,
It is another by top lower part (11) that bearing is located in bearing support with being vertically movable, one end are located in bearing support
The measurement PCB (18) that end forces in the spring (19) of conductor top lower part and is located in below sensor holder；
The top top, tested current sensor measurement position, sensor PCB and top lower part are correspondingly arranged up and down.
2. the current sensor caliberating device according to claim 1 based on electric current, it is characterised in that：Described two fixations
It is fixed on sensor holder to the spaced a distance of block；The segment distance forms the tested current sensor measurement position
It sets.
3. the current sensor caliberating device according to claim 2 based on electric current, it is characterised in that：The sensor holder
Bottom surface and position corresponding with tested current sensor measurement position offer the sensor holder for alignment sensor PCB
Groove (262).
4. the current sensor caliberating device according to claim 3 based on electric current, it is characterised in that：The cylinder body is fixed
On cylinder block (15) that is horizontally disposed and being mutually parallel with sensor holder；Left support (17) and the vertical cloth of right support (16) difference
It sets, and the left and right ends of cylinder block are connect with the upper end of left support and right support respectively, the left and right ends difference of sensor holder
It is connect with the lower end of left support and right support.
5. the current sensor caliberating device according to claim 4 based on electric current, it is characterised in that：The sensor holder
Lower section also set up a horizontal base board, the pedestal left part (27) with button with the pedestal right part (3) with button respectively
It is vertical to arrange and connect into a rectangular space for being more than the caliberating device lower component with sensor holder and base board, it passes
The left and right ends of sensor seat are connect with pedestal left part with the upper end of pedestal right part respectively, base board respectively with pedestal left part and pedestal
The lower end of right part connects.
6. the current sensor caliberating device according to claim 5 based on electric current, it is characterised in that：The left support
Inside is provided with the guide rail arranged vertically, the sliding block connection on the left end and guide rail of the travel switch shifting block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721858956.0U CN207636752U (en) | 2017-12-27 | 2017-12-27 | A kind of current sensor caliberating device based on electric current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721858956.0U CN207636752U (en) | 2017-12-27 | 2017-12-27 | A kind of current sensor caliberating device based on electric current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207636752U true CN207636752U (en) | 2018-07-20 |
Family
ID=62852936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721858956.0U Active CN207636752U (en) | 2017-12-27 | 2017-12-27 | A kind of current sensor caliberating device based on electric current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207636752U (en) |
-
2017
- 2017-12-27 CN CN201721858956.0U patent/CN207636752U/en active Active
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