CN208314076U - A kind of hand-held DCR of Transformer automatic testing equipment - Google Patents
A kind of hand-held DCR of Transformer automatic testing equipment Download PDFInfo
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- CN208314076U CN208314076U CN201820904661.0U CN201820904661U CN208314076U CN 208314076 U CN208314076 U CN 208314076U CN 201820904661 U CN201820904661 U CN 201820904661U CN 208314076 U CN208314076 U CN 208314076U
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- shell
- spring
- current
- circuit board
- dcr
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Abstract
The utility model discloses a kind of hand-held DCR of Transformer automatic testing equipments, including the shell with hollow structure, damping has been bolted on the inner wall of shell, display screen and control button are installed on the front of shell, it is equipped with circuit board in damping, is respectively equipped with current wiring terminal, voltage wiring terminal, conversion module, constant-current source circuit, central processing unit, signal processing module and human-computer interaction module on circuit board.This hand-held DCR of Transformer automatic testing equipment, damping is carried out while spring A and spring B can both be fixed circuit board or to circuit board, it avoids when falling, impact acts directly on circuit board the damage reduced to device, digital signal is converted analog signals into, then according to this resistance value size, is then compared the electric current gear of judgement with current test electric current gear, it is tested without repeated charge, to save the testing time.
Description
Technical field
The utility model relates to measuring instrument technical field, specially a kind of hand-held DCR of Transformer is tested automatically
Device.
Background technique
DCR of Transformer test is that transformer interruption maintenance must do project, in each Repair of Transformer has ten
Divide important meaning.Usually in test, user is the Standard resistance range for not knowing test product, and traditional test equipment, is all divided
For multiple testing current gears, this just needs multiple gear selecting test finally to select a suitable current gear to be tested, and every
Secondary test requires charge and discharge process, does many repetitive works, wastes a large amount of time, inefficiency.
Utility model content
The purpose of this utility model is to provide a kind of hand-held DCR of Transformer automatic testing equipment, having can be with
According to the size of live test product resistance value, automatically selects suitable electric current gear and tested, the advantage for making test more convenient, solution
It has determined the problems of the prior art.
To achieve the above object, the utility model provides the following technical solutions: a kind of hand-held DCR of Transformer from
Dynamic test device has been bolted damping, shell including the shell with hollow structure on the inner wall of the shell
Front on display screen and control button be installed, circuit board is equipped in damping, is respectively equipped with electric current wiring on circuit board
Terminal, voltage wiring terminal, conversion module, constant-current source circuit, central processing unit, signal processing module and human-computer interaction mould
Block, the conversion module are equipped with current switching unit, AD analog-to-digital conversion device and voltage switch unit, set on human-computer interaction module
There are the liquid crystal display being electrically connected with display screen, the keyboard unit being electrically connected with control button and data storage single
Member, the output end of the central processing unit connect with constant-current source circuit, liquid crystal display and data storage cell respectively, center
The input terminal of processor connects with signal processing module, keyboard unit and data storage cell respectively, the current wiring terminal
Connect respectively with the input terminal of current switching unit and voltage switch unit with voltage wiring terminal, current switching unit and constant current
Source circuit output end connects, and the output end of current switching unit and voltage switch unit is electrically connected with AD analog-to-digital conversion device,
The output end of AD analog-to-digital conversion device is connect with signal processing module.
Preferably, the damping is made of riser, upper cross plate, lower cross plate, spring A and spring B, upper cross plate and lower cross
Plate is respectively symmetrically fixed on the top margin and bottom edge of riser the same side, on upper cross plate and the opposite outer wall of lower cross plate respectively be in
The spring A and spring B of same axis connect, and lower cross plate is fixedly connected with the bottom wall of shell, between the spring A and spring B
It is connected on port.
Preferably, the lithium battery to connect with circuit board is also equipped in the shell, lithium battery is contacted with the side wall of riser
Connection.
Preferably, the current wiring terminal and voltage wiring terminal extend to the outside of shell.
Compared with prior art, the beneficial effects of the utility model are as follows:
1. hand-held DCR of Transformer automatic testing equipment, upper cross plate and lower cross plate are respectively symmetrically fixed on riser
On the top margin and bottom edge of the same side, on upper cross plate and the opposite outer wall of lower cross plate respectively with the spring A and bullet that are in same axis
Spring B connects, and carries out damping while spring A and spring B can both be fixed circuit board or to circuit board, avoids
When falling, impact acts directly on circuit board the damage reduced to device.
2. hand-held DCR of Transformer automatic testing equipment, constant-current source circuit provide stable survey for test macro
Power supply is tried, conversion module improves the signal that current wiring terminal and voltage wiring terminal input, and is sent to AD modulus later
Converter converts analog signals into digital signal, is finally sent to central processing unit, central processing unit is again by test result calculations
It arranges, is output to human-computer interaction module, automatic degree is high.
3. hand-held DCR of Transformer automatic testing equipment, into after automatic current test program, instrument is first opened
A dynamic small test electric current carries out preliminary survey, calculates a resistance value, then according to this resistance value size, selects a conjunction
Then the electric current gear of judgement is compared, if comparing current gear by suitable electric current gear with current test electric current gear
Electric current then increases to greatly the electric current gear of selection, if smaller than current flow, be reduced to the electric current gear of selection, finally carry out
Second of test, calculates the resistance value of test product, during entire adjustment electric current, tests without repeated charge, to save
Save the testing time.
Detailed description of the invention
Fig. 1 is the outer casing construction drawing of the utility model；
Fig. 2 is the interior of shell structure chart of the utility model；
Fig. 3 is the damping structure chart of the utility model；
Fig. 4 is the module connection figure of the utility model.
In figure: 1 shell, 11 display screens, 12 control buttons, 2 dampings, 21 risers, 22 upper cross plates, 23 lower cross plates, 24
Spring A, 25 spring Bs, 3 circuit boards, 31 current wiring terminals, 32 voltage wiring terminals, 33 conversion modules, 331 current switching lists
Member, 332AD analog-to-digital conversion device, 333 voltage switch units, 34 constant-current source circuits, 35 central processing units, 36 signal processing modules,
37 human-computer interaction modules, 371 liquid crystal displays, 372 keyboard units, 373 data storage cells.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1-3, a kind of hand-held DCR of Transformer automatic testing equipment, including the shell with hollow structure
Body 1 has been bolted damping 2 on the inner wall of shell 1, be equipped on the front of shell 1 display screen 11 and control by
Key 12, damping 2 is interior to be equipped with circuit board 3, is also equipped with the lithium battery to connect with circuit board 3, lithium battery and riser in shell 1
21 side wall connects, and hand-held sandwich type element 1 provides whole inner frame and external structure for tester, and lithium battery is to circuit
Plate 3 is powered.
Referring to Fig. 3, damping 2 is made of riser 21, upper cross plate 22, lower cross plate 23, spring A24 and spring B 25, on
Transverse slat 22 and lower cross plate 23 are respectively symmetrically fixed on the top margin and bottom edge of 21 the same side of riser, 23 phase of upper cross plate 22 and lower cross plate
Pair outer wall on respectively in same axis spring A24 and spring B 25 connect, lower cross plate 23 and the bottom wall of shell 1 are fixed
It connects, is connected on the port between spring A24 and spring B 25, spring A24 and spring B 25 can both carry out circuit board 3
Damping can also be carried out to circuit board 3 while fixed, avoided when falling, impact, which acts directly on circuit board 3, to be subtracted
The damage to device is lacked.
Referring to Fig. 4, be respectively equipped on circuit board 3 current wiring terminal 31, voltage wiring terminal 32, conversion module 33,
Constant-current source circuit 34, central processing unit 35, signal processing module 36 and human-computer interaction module 37, conversion module 33 are equipped with electricity
Switch unit 331, AD analog-to-digital conversion device 332 and voltage switch unit 333 are flowed, human-computer interaction module 37 is equipped with and display screen 11
The liquid crystal display 371 of electric connection, the keyboard unit 372 and data storage cell being electrically connected with control button 12
373, the output end of central processing unit 35 respectively with 373 phase of constant-current source circuit 34, liquid crystal display 371 and data storage cell
It connecing, the input terminal of central processing unit 35 connects with signal processing module 36, keyboard unit 372 and data storage cell 373 respectively,
Current wiring terminal 31 and voltage wiring terminal 32 input terminal with current switching unit 331 and voltage switch unit 333 respectively
Connect, current wiring terminal 31 and voltage wiring terminal 32 extend to the outside of shell 1, current switching unit 331 and constant-current source
34 output end of circuit connects, the output end of current switching unit 331 and voltage switch unit 333 with AD analog-to-digital conversion device 332
It is electrically connected, the output end of AD analog-to-digital conversion device 332 is connect with signal processing module 36, and constant-current source circuit 34 mentions for test macro
For stable test power supply, conversion module 33 adjusts the signal that current wiring terminal 31 and voltage wiring terminal 32 input
Reason, is sent to AD analog-to-digital conversion device 332 later, most converts analog signals into digital signal, be finally sent to central processing unit 35, in
Central processor 35 again arranges test result calculations, is output to human-computer interaction module 37, and so far testing experiment is completed, into automatic
After testing current program, instrument first starts a small test electric current and carries out preliminary survey, calculates a resistance value, then basis
This resistance value size selects a suitable electric current gear, then by the electric current gear of judgement and current test electric current gear
Be compared, if than current gear electric current greatly if increase to the electric current gear of selection and be reduced to if smaller than current flow
The electric current gear of selection, finally carries out testing for second, calculates the resistance value of test product, during entire adjustment electric current, nothing
Repeated charge is needed to test, to save the testing time.
In summary: this hand-held DCR of Transformer automatic testing equipment, upper cross plate 22 and lower cross plate 23 are right respectively
Title is fixed on the top margin and bottom edge of 21 the same side of riser, respectively and in same on upper cross plate 22 and the opposite outer wall of lower cross plate 23
The spring A24 and spring B 25 of one axis connect, while spring A24 and spring B 25 can both be fixed circuit board 3 or
Damping can be carried out to circuit board 3, avoided when falling, impact, which acts directly on circuit board 3, to be reduced to device
Damage, constant-current source circuit 34 provide stable test power supply for test macro, and conversion module 33 is by current wiring terminal 31 and electricity
The signal that crimping line terminals 32 input is improved, and is sent to AD analog-to-digital conversion device 332 later, is converted analog signals into digital letter
Number, it is finally sent to central processing unit 35, central processing unit 35 again arranges test result calculations, is output to human-computer interaction module
37, so far testing experiment is completed, and into after automatic current test program, instrument, which first starts a small test electric current, to be carried out just
It surveys, calculates a resistance value, then according to this resistance value size, a suitable electric current gear is selected, then by judgement
Electric current gear is compared with current test electric current gear, if than current gear electric current greatly if increase to the current gear of selection
Position, if smaller than current flow, is reduced to the electric current gear of selection, finally carries out second and tests, calculates the electricity of test product
Resistance value.During entire adjustment electric current, tested without repeated charge, to save the testing time.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of hand-held DCR of Transformer automatic testing equipment, including the shell (1) with hollow structure, feature exists
In: it has been bolted damping (2) on the inner wall of the shell (1), display screen is installed on the front of shell (1)
(11) and control button (12) circuit board (3), are equipped in damping (2), circuit board is respectively equipped with current wiring terminal on (3)
(31), voltage wiring terminal (32), conversion module (33), constant-current source circuit (34), central processing unit (35), signal processing module
(36) and human-computer interaction module (37), the conversion module (33) are equipped with current switching unit (331), AD analog-to-digital conversion device
(332) and voltage switch unit (333), human-computer interaction module (37) are equipped with the liquid crystal display being electrically connected with display screen (11)
Unit (371), the keyboard unit (372) and data storage cell (373) being electrically connected with control button (12), the center
The output end of processor (35) respectively with constant-current source circuit (34), liquid crystal display (371) and data storage cell (373) phase
Connect, the input terminal of central processing unit (35) respectively with signal processing module (36), keyboard unit (372) and data storage cell
(373) connect, the current wiring terminal (31) and voltage wiring terminal (32) respectively with current switching unit (331) and voltage
The input terminal of switch unit (333) connects, and current switching unit (331) connects with constant-current source circuit (34) output end, and electric current is cut
The output end for changing unit (331) and voltage switch unit (333) is electrically connected with AD analog-to-digital conversion device (332), and AD modulus turns
The output end for changing device (332) is connect with signal processing module (36).
2. a kind of hand-held DCR of Transformer automatic testing equipment according to claim 1, it is characterised in that: described
Damping (2) is made of riser (21), upper cross plate (22), lower cross plate (23), spring A (24) and spring B (25), upper cross plate
(22) it is respectively symmetrically fixed on the top margin and bottom edge of riser (21) the same side with lower cross plate (23), upper cross plate (22) and lower cross plate
(23) connect respectively with the spring A (24) and spring B (25) for being in same axis on opposite outer wall, lower cross plate (23) and shell
(1) bottom wall is fixedly connected, and is connected on the port between the spring A (24) and spring B (25).
3. a kind of hand-held DCR of Transformer automatic testing equipment according to claim 1, it is characterised in that: described
The lithium battery to connect with circuit board (3), the side wall contact connectio of lithium battery and riser (21) are also equipped in shell (1).
4. a kind of hand-held DCR of Transformer automatic testing equipment according to claim 1, it is characterised in that: described
Current wiring terminal (31) and voltage wiring terminal (32) extend to the outside of shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820904661.0U CN208314076U (en) | 2018-06-11 | 2018-06-11 | A kind of hand-held DCR of Transformer automatic testing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820904661.0U CN208314076U (en) | 2018-06-11 | 2018-06-11 | A kind of hand-held DCR of Transformer automatic testing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208314076U true CN208314076U (en) | 2019-01-01 |
Family
ID=64708051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820904661.0U Expired - Fee Related CN208314076U (en) | 2018-06-11 | 2018-06-11 | A kind of hand-held DCR of Transformer automatic testing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208314076U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110095730A (en) * | 2019-04-22 | 2019-08-06 | 辽宁省交通高等专科学校 | Battery performance detection and assessment device during a kind of new-energy automobile Second-hand Vehicle Transaction |
-
2018
- 2018-06-11 CN CN201820904661.0U patent/CN208314076U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110095730A (en) * | 2019-04-22 | 2019-08-06 | 辽宁省交通高等专科学校 | Battery performance detection and assessment device during a kind of new-energy automobile Second-hand Vehicle Transaction |
| CN110095730B (en) * | 2019-04-22 | 2024-03-29 | 辽宁省交通高等专科学校 | Battery performance detection and evaluation device in new energy automobile second-hand vehicle transaction process |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190101 Termination date: 20190611 |