CN208721718U - Portable high-accuracy testing current case - Google Patents
Portable high-accuracy testing current case Download PDFInfo
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- CN208721718U CN208721718U CN201821477474.5U CN201821477474U CN208721718U CN 208721718 U CN208721718 U CN 208721718U CN 201821477474 U CN201821477474 U CN 201821477474U CN 208721718 U CN208721718 U CN 208721718U
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- cover plate
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- body structure
- accuracy testing
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Abstract
The utility model discloses a kind of portable high-accuracy testing current casees, including body structure, body structure includes upper cover plate, lower cover plate, front shroud, back shroud, left cover and right cover plate, power transformer and sensor are equipped in body structure, power transformer is located at the internal partition close to upper cover plate, right cover plate is equipped with the power switch connecting with power transformer, and the upside of left cover is equipped with radiator fan, and the downside of right cover plate is equipped with heat release hole；The lower section of internal partition is equipped with the pcb board being located in shielding box, front shroud is equipped with the output terminal connecting with pcb board, sensor is located on back shroud, running through in the through-hole of sensor has cable cover(ing), the both ends of cable cover(ing) are connected by a snap on front shroud and back shroud respectively, and sensor is electrically connected with pcb board.The portable high-accuracy testing current case of the utility model using the above structure, can adapt to field connection requirement, and the precision of rapid survey, current sensor is high.
Description
Technical field
The utility model relates to testing current box technology fields, more particularly to a kind of portable high-accuracy testing current
Case.
Background technique
Currently, there are many occasions for needing to measure electric current in industrial circle.It is complicated compared to installation for in-site measurement
Current sensor system, can be more convenient using testing current case, without configuring power supply and various leads.
It is well known that measurement electric current is needed using current sensor, and the type of current sensor has very much, at present extensively
The current sensor of hall principle is used, Hall current sensor is divided into open loop hall principle and closed loop hall principle.This
The current sensor of two kinds of principles, between precision up to 0.3%-1%, the leeway very little of raising.
Currently, a TT&C system is formed after measurement electric current usually connects power supply and various leads with current sensor,
This method is complicated, error-prone, low efficiency.
Utility model content
The purpose of the utility model is to provide a kind of portable high-accuracy testing current casees, can adapt to field connection and want
It asks, rapid survey, the precision of current sensor will reach 10-100ppm rank.
To achieve the above object, the utility model provides a kind of portable high-accuracy testing current case, including cabinet knot
Structure, the body structure include upper cover plate, lower cover plate, front shroud, back shroud, left cover and right cover plate, in the body structure
Equipped with power transformer and sensor, the power transformer is on the internal partition close to the upper cover plate, the right cover plate
Equipped with the power switch connecting with the power transformer, the upside of the left cover is equipped with radiator fan, the right cover plate
Downside is equipped with heat release hole；
The lower section of the internal partition is equipped with the pcb board being located in shielding box, and the front shroud is equipped with to be connected with the pcb board
The output terminal connect, the sensor are located on the back shroud, and running through in the through-hole of the sensor has cable cover(ing), described
The both ends of cable cover(ing) are connected by a snap respectively on the front shroud and the back shroud, the sensor and the PCB
Plate is electrically connected.
Preferably, the body structure is surrounded by the strip being connected on the left cover and the right cover plate, institute
It states upper cover plate and the lower cover plate is fixed by screws on the strip.
Preferably, the shielding box is fixed on the internal partition.
Preferably, the lower section of the lower cover plate is fixed with stabilizer blade by screw.
Preferably, the quantity of the sensor is not less than three, and the sensor is closed-loop fluxgate current sensor.
Preferably, the upper cover plate is equipped with handle.
Preferably, the material of the body structure is aluminium.
Therefore, the portable high-accuracy testing current case of the utility model using the above structure, can adapt to field connection
It is required that rapid survey, the precision of current sensor will reach 10-100ppm rank.
The utility model uses the metal cabinet structure of integration, has been internally integrated high precision closed loop fluxgate current sense
Device, current measurement precision have reached ppm grades, simultaneously as its integrated design, reduce the complicated work of user's wiring at the scene
Sequence has achieved the purpose that succinct rapid survey electric current.In addition, using metal cabinet, reinforcing shielding and preventing magnetization.Gold
The output terminal for belonging to the front shroud setting of body structure has secondary current delivery outlet and secondary voltage delivery outlet, to make the device
It not only can satisfy being directly connected to for various power measurement instruments, and can be connected directly with oscillograph.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model portable high-accuracy testing current case embodiment；
Fig. 2 is the explosive state schematic diagram of the utility model portable high-accuracy testing current case embodiment；
Fig. 3 is the schematic diagram of sensor embodiment in the utility model portable high-accuracy testing current case.
Appended drawing reference
1, body structure；2, upper cover plate；3, lower cover plate；4, front shroud；5, back shroud；6, left cover；7, right cover plate；8, block
Item；9, stabilizer blade；10, handle；11, internal partition；12, power transformer；13, power switch；14, sensor；15, radiator fan；
16, heat release hole；17, shielding box；18, pcb board；19, output terminal；20, cable cover(ing)；21, it buckles.
Specific embodiment
The embodiments of the present invention is described further with reference to the accompanying drawing.
Fig. 1 is the schematic diagram of the utility model portable high-accuracy testing current case embodiment, Fig. 2 be the utility model just
The explosive state schematic diagram of formula high-precision current test box embodiment is taken, Fig. 3 is that the utility model portable high-accuracy electric current is surveyed
The schematic diagram of sensor embodiment in case is tried, as shown, a kind of portable high-accuracy testing current case, including body structure 1,
The material of body structure 1 is aluminium, has and reinforces shielding and preventing magnetized effect.Body structure 1 includes upper cover plate 2, lower cover plate
3, front shroud 4, back shroud 5, left cover 6 and right cover plate 7, being surrounded by for body structure 1 are connected to left cover 6 and right cover plate 7
On strip 8, upper cover plate 2 and lower cover plate 3 are fixed by screws on strip 8.Strip 8 consolidates left cover 6 and right cover plate 7
It is fixed, while being connect with upper cover plate 2 and lower cover plate 3, guarantee the globality of body structure 1.Upper cover plate 2 is equipped with handle 10, passes through
Lift-pull handle 10 can carry entirety, quick and convenient.The lower section of lower cover plate 3 is fixed with stabilizer blade 9 by screw, and stabilizer blade 9 is to cabinet
Structure 1 is supported.
Power transformer 12 and sensor 14 are equipped in body structure 1, power transformer 12 is located at close to the interior of upper cover plate 2
Partition 11, right cover plate 7 are equipped with the power switch 13 connecting with power transformer 12, may be implemented by being opened and closed power switch 13
Connection is closed.
The upside of left cover 6 is equipped with radiator fan 15, and the downside of right cover plate 7 is equipped with heat release hole 16, radiator fan 15 and dissipates
The position of hot hole 16 be located at body structure 1 to side position, the heat in body structure 1 can adequately be distributed.
The lower section of internal partition 11 is equipped with shielding box 17, and shielding box 17 is fixed on internal partition 11.It is fixed in shielding box 17
Pcb board 18, electromagnetic capability can be limited within the scope of certain space by shielding box 17, for inhibiting radiation interference.On front shroud 4
Equipped with the output terminal 19 connecting with pcb board 18, sensor 14 is electrically connected with pcb board 18.
Sensor 14 is located on back shroud 5, and running through in the through-hole of sensor 14 has cable cover(ing) 20, and the two of cable cover(ing) 20
End is connected on front shroud 4 and back shroud 5 by buckle 21 respectively, and the quantity of sensor 14 is not less than three, and sensor 14 is
Closed-loop fluxgate current sensor.In use, tested electric current is passed through from sensor 14, corresponding electricity can be measured in output end
Pressure value.
Therefore, the portable high-accuracy testing current case of the utility model using the above structure, can adapt to field connection
It is required that rapid survey, the precision of current sensor will reach 10-100ppm rank.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model rather than limit it
System, although the utility model has been described in detail with reference to the preferred embodiment, those skilled in the art should manage
Solution: it still can be with the technical solution of the present invention is modified or equivalently replaced, and these are modified or equally replace
Changing also cannot make modified technical solution be detached from the spirit and scope of the technical scheme of the present invention.
Claims (7)
1. a kind of portable high-accuracy testing current case, including body structure, the body structure include upper cover plate, lower cover plate,
Front shroud, back shroud, left cover and right cover plate, it is characterised in that: power transformer and sensor are equipped in the body structure,
The power transformer is located at the internal partition close to the upper cover plate, and the right cover plate is equipped with and connect with the power transformer
Power switch, the upside of the left cover is equipped with radiator fan, and the downside of the right cover plate is equipped with heat release hole；
The lower section of the internal partition is equipped with the pcb board being located in shielding box, and the front shroud is equipped with and connect with the pcb board
Output terminal, the sensor are located on the back shroud, and running through in the through-hole of the sensor has cable cover(ing), the cable
The both ends of sheath are connected by a snap respectively on the front shroud and the back shroud, the sensor and pcb board electricity
Even.
2. a kind of portable high-accuracy testing current case according to claim 1, it is characterised in that: the body structure
It is surrounded by the strip being connected on the left cover and the right cover plate, the upper cover plate and the lower cover plate pass through screw
It is fixed on the strip.
3. a kind of portable high-accuracy testing current case according to claim 2, it is characterised in that: the shielding box is fixed
On the internal partition.
4. a kind of portable high-accuracy testing current case according to claim 3, it is characterised in that: under the lower cover plate
Side is fixed with stabilizer blade by screw.
5. a kind of portable high-accuracy testing current case according to claim 4, it is characterised in that: the number of the sensor
Amount is not less than three, and the sensor is closed-loop fluxgate current sensor.
6. a kind of portable high-accuracy testing current case according to claim 5, it is characterised in that: set on the upper cover plate
There is handle.
7. a kind of portable high-accuracy testing current case according to claim 6, it is characterised in that: the body structure
Material is aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821477474.5U CN208721718U (en) | 2018-09-10 | 2018-09-10 | Portable high-accuracy testing current case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821477474.5U CN208721718U (en) | 2018-09-10 | 2018-09-10 | Portable high-accuracy testing current case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208721718U true CN208721718U (en) | 2019-04-09 |
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ID=65981517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821477474.5U Active CN208721718U (en) | 2018-09-10 | 2018-09-10 | Portable high-accuracy testing current case |
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| Country | Link |
|---|---|
| CN (1) | CN208721718U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111721975A (en) * | 2020-08-03 | 2020-09-29 | 北京世维通光智能科技有限公司 | Optical fiber current sensor measuring instrument case |
-
2018
- 2018-09-10 CN CN201821477474.5U patent/CN208721718U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111721975A (en) * | 2020-08-03 | 2020-09-29 | 北京世维通光智能科技有限公司 | Optical fiber current sensor measuring instrument case |
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