CN208224398U - Fuel charger radio frequency electromagnetic field radiation immunity experiment keyboard detecting device - Google Patents
Fuel charger radio frequency electromagnetic field radiation immunity experiment keyboard detecting device Download PDFInfo
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- CN208224398U CN208224398U CN201820885144.3U CN201820885144U CN208224398U CN 208224398 U CN208224398 U CN 208224398U CN 201820885144 U CN201820885144 U CN 201820885144U CN 208224398 U CN208224398 U CN 208224398U
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- fuel charger
- keyboard
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- push rod
- electromagnetic field
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Abstract
The utility model relates to a kind of fuel charger radio frequency electromagnetic field radiation immunity experiment keyboard detecting devices, bracket is arranged in fuel charger keyboard surrounding, cross track is provided on bracket, link block is provided on cross track, traverse gear is drivingly connected block, and transversely track is mobile, cross track both ends are provided with movable block, two movable blocks are connect with two threads of lead screw respectively, two lead screws are arranged on bracket, and two lead screws are distributed in the left and right sides of bracket, longitudinal driving device drives lead screw rotation, the lifting of link block lower end is connected with hanger, electromagnetism push rod is provided on hanger, the lower end of electromagnetism push rod is connected with compensating squeeze head.The longitudinal driving device, traverse gear and electromagnetism push rod of the utility model realize the pressing to keyboard, without being manually entered high intensity electromagnetic field radiation environment, injury of the electromagnetic radiation to human body is reduced, the undetectable defect of fuel charger keyboard in current fuel charger radio frequency electromagnetic field radiation immunity experiment is overcome.
Description
Technical field:
The utility model belongs to the anti-radiation detection technique field of fuel charger, and in particular to a kind of fuel charger radio frequency electromagnetic field spoke
Penetrate immunity experiment keyboard detecting device.
Background technique:
Radio frequency electromagnetic field radiation immunity experiment is tested electrical, electronic equipment, observes test item in radio frequency electrical
Whether the function under magnetic field radiation environment is normal.
For fuel charger in " JJF1521-2015 fuel charger type evaluation outline ", 10.9.2 section
Clearly stipulate that fuel charger must carry out electromagnetic environment test, electromagnetic environment test includes esd immunity, radio frequency electrical
Magnetic field radiation immunity to interference, electrical fast transient (eft) immunity to interference, surge (impact) immunity to interference, voltage dip, short interruptions and electricity
Buckling immunity experiment, after the completion of above-mentioned test process neutralization test, the function of fuel charger should normally, do not allow it is following with
Working normally related function reduces: (1) device fault or unexpected movement；(2) change or loss of storing data；
(3) reset of factory defaults；(4) change of operational mode；(5) confusion or mistake that data are shown；(6) keyboard operation is lost
Effect.
It but is by fuel charger at present when carrying out radio frequency electromagnetic field radiation immunity experiment to fuel charger
It is placed in radiation immunity electromagnetic compatibility laboratory and carries out, 80MHz ~ 2000MHz or more frequency can be emitted by having in the laboratory
Radio-frequency radiation source within the scope of rate, the electromagnetic field which generates is larger to human injury, therefore, usually to electrical, electric
When sub- equipment carries out radio frequency electromagnetic field radiation immunity experiment, personnel are forbidden to enter in laboratory, still, for fuel charger
For, in radio frequency electromagnetic field radiation, whether the keyboard of fuel charger, which fails, could be determined by operating keyboard,
During test, personnel are prohibited from entering laboratory, just can not carry out test operation to the keyboard of fuel charger, therefore, although
" JJF1521-2015 fuel charger type evaluation outline " is distinctly claimed whether to check fuel charger keyboard operation in testing
Failure, still, since the high intensity electromagnetic field in laboratory radiates, tester cannot be introduced into laboratory, can not be to fuel charger
Keyboard checked.
Utility model content:
In conclusion in order to overcome the shortcomings of that prior art problem, the utility model provide a kind of fuel charger radio frequency electrical
Magnetic field radiation immunity experiment keyboard detecting device, it is the keyboard surrounding setting bracket in fuel charger, suspends in midair and sets on bracket
Press device is set, which can adjust position along bracket, while can realize and press to keyboard, thus to oiling
When machine carries out radio frequency electromagnetic field radiation immunity experiment, the pressing operation to fuel charger keyboard is realized, in high intensity electromagnetic field
Under radiation environment, without human intervention, fuel charger keyboard is checked.
In order to solve the above technical problems, the technical solution of the utility model is achieved in that
A kind of fuel charger radio frequency electromagnetic field radiation immunity experiment keyboard detecting device, in which: including bracket, hanger,
Electromagnetism push rod, compensating squeeze head, longitudinal driving device, link block and cross track, the bracket are arranged in fuel charger keyboard four
Week cross track being provided on the bracket, link block being provided on the cross track, traverse gear driving connects
Connecing block, transversely track is mobile, and the cross track both ends are provided with movable block, two movable blocks respectively with two lead screws
It is threadedly coupled, two lead screws are arranged on bracket, and two lead screws are distributed in the left and right sides of bracket, longitudinal transmission
Device drives lead screw rotation, and the link block lower end lifting is connected with hanger, electromagnetism push rod, institute are provided on the hanger
The lower end for the electromagnetism push rod stated is connected with compensating squeeze head.
Further, the longitudinal driving device includes motor, driving gear, driven gear, Left Drive gear, right transmission
Gear and flat-toothed belt, the motor are arranged on bracket, and driving gear is connected on the output shaft of the motor, main
Moving gear and driven gear are intermeshed, and the driven gear is disposed therein on a lead screw, is additionally provided on the lead screw
Left Drive gear is provided with right transmission gear on another lead screw in two lead screws, and Left Drive gear and right transmission gear are logical
Cross flat-toothed belt connection.
Further, the traverse gear is electric pushrod, and the electric pushrod is arranged on movable block, electronic
The front end of push rod is connect with link block, and the cross track is cylindrical polished rod, and the link block is installed on cross track
On.
Further, the hanger is rectangular frame structure, and the upper end connect with link block lower end, is arranged on top plate
There is jackscrew, jackscrew is threadedly coupled with the top plate of hanger, and the lower end of jackscrew is connect by bearing with electromagnetism push rod, the setting of hanger lower end
There is bottom plate, electromagnetism push rod is provided between top plate and bottom plate, the lower end of the slip shaft of the electromagnetism push rod passes through hanger
The lower end of bottom plate, the slip shaft of the electromagnetism push rod under bottom plate is provided with compensating squeeze head.
Further, it is provided with guide groove on the side plate of the hanger, is provided with and leads on the side wall of the electromagnetism push rod
To block, the guide pad is arranged in guide groove.
Further, the bracket is erected at fuel charger keyboard surrounding, the Magnetic adhesive mat one side by Magnetic adhesive mat
For sticky glue, high strength permanent magnet iron is arranged in another side, and being pasted on fuel charger keyboard on one side for the sticky glue of Magnetic adhesive mat is described
Magnetic adhesive mat is non-metal frame by high strength permanent magnet ferromagnetism adsorption support, the bracket, and the lower end of the bracket is set
It is equipped with connection sheet, the connection sheet is irony connection sheet or is ferrite sheet or is high strength permanent magnet body piece, the connection sheet
Upper end the lower end of bracket is fixed on by tack adhesive patch, being provided with for the lower end of the connection sheet and Magnetic adhesive mat is high-strength
One face magnetic absorption of permanent magnet connects.
Further, the lower end of the bracket is connect by bolt with fuel charger keyboard；Or the lower end of bracket pass through it is double
Face glue is connect with fuel charger keyboard；Or the lower end of bracket is connected by binding strap and the binding of fuel charger keyboard.
Further, the compensating squeeze head is the elastic rubber pressure head that the lower end of slip shaft of electromagnetism push rod is arranged in.
Further, the electromagnetism push rod includes shell, coil, slip shaft and reset spring, is set in the shell
It is equipped with coil, slip shaft is installed in coil, is provided with reset spring between the upper end end cap and shell of slip shaft, described
Reset spring be sleeved on slip shaft, the slip shaft includes permanent magnet top and nonmetallic rod-shaped lower part, permanent magnetism
The lower end on body top is connect with the upper end of nonmetallic rod-shaped lower part, the lower end setting elasticity pressure of the nonmetallic rod-shaped lower part
Head.
The utility model has the following beneficial effects:
1, the utility model is that bracket is arranged in the keyboard surrounding of fuel charger, and suspention setting press device on bracket should
Press device can adjust position along bracket, while can realize and press to keyboard, thus carrying out radio frequency electrical to fuel charger
When magnetic field radiation immunity experiment, the pressing operation to fuel charger keyboard, under high intensity electromagnetic field radiation environment, nothing are realized
Manual operation is needed, fuel charger keyboard is checked.
2, the longitudinal driving device of the utility model and traverse gear are able to drive link block movement, realize to connection
The adjustment of block position, so that the position of electromagnetism push rod and compensating squeeze head is adjusted, it when in use can be to the fuel oil of multiple and different positions
The pressing of fuel charger keyboard realizes that fuel charger key checks comprehensively, moreover, the longitudinal driving device of the utility model uses
Lead screw transmission, traverse gear are driven using electric pushrod, high transmission accuracy, it can be achieved that slight distance adjustment, facilitate this
Utility model adapts to the adjustment of small distance displacement between each key of keyboard.
3, the utility model drives compensating squeeze head to press fuel charger keyboard using electromagnetism push rod, compensating squeeze head
With keyboard flexible contact, simulates human finger and press keyboard, rigidity is avoided to press the damage to keyboard, the utility model can pass through
Jackscrew adjusts the height of electromagnetism push rod, so as to adjust the distance between compensating squeeze head and fuel charger keyboard, guide groove and guide pad
It cooperates, realizes the guiding when adjustment of electromagnetism push rod height.
4, the utility model structure is simple, easy to use, operation is easy, the longitudinal driving device of the utility model, transverse direction
Transmission device and electromagnetism push rod can be connect with PLC automatic control system, control position movement and pressing, nothing by control system
It need to be manually entered high intensity electromagnetic field radiation environment, injury of the electromagnetic radiation to human body is reduced, overcome current fuel charger radio frequency electrical
The undetectable defect of fuel charger keyboard in magnetic field radiation immunity experiment, the accuracy of guarantee test result.
Detailed description of the invention:
Fig. 1 is the structural schematic diagram of the utility model
Bracket 1；Hanger 2；Electromagnetism push rod 3；Compensating squeeze head 4；Link block 5；Cross track 6；Movable block 7；Lead screw 8；It is electronic
Push rod 15；Reset spring 16；Guide groove 17；Guide pad 18；Magnetic adhesive mat 19；Jackscrew 24；Connection sheet 101.
Fig. 2 is the overlooking structure diagram of Fig. 1 of the utility model
Bracket 1；Hanger 2；Cross track 6；Movable block 7；Lead screw 8；Motor 9；Driving gear 10；Driven gear 11；Zuo Chuan
Moving gear 12；Right transmission gear 13；Flat-toothed belt 14；Electric pushrod 15；Magnetic adhesive mat 19.
Fig. 3 is the control principle drawing of the utility model
Electromagnetism push rod 3；Motor 9；Electric pushrod 15；Power supply 20；Controller 21；Displacement sensor 22；The time relay 23.
Fig. 4 is the structural schematic diagram of the electromagnetism push rod of the utility model
Hanger 2；Jackscrew 24；Shell 31；Coil 32；Slip shaft 33；Reset spring 16.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As shown in Figure 1, Figure 2, Figure 4 shows, a kind of fuel charger radio frequency electromagnetic field radiation immunity experiment keyboard detecting device, packet
Include bracket 1, hanger 2, electromagnetism push rod 3, compensating squeeze head 4, longitudinal driving device, link block 5, cross track 6, the bracket 1
It is erected at fuel charger keyboard surrounding by Magnetic adhesive mat 19,19 one side of Magnetic adhesive mat is sticky glue, and another side setting is high
Strong permanent magnetic iron, the sticky glue of Magnetic adhesive mat 19 are pasted on one side on fuel charger keyboard, and the Magnetic adhesive mat 19 passes through high-strength
Permanent magnet magnetic absorption bracket 1, the lower end of the bracket 1 are provided with connection sheet 101, and the connection sheet 101 is irony company
Contact pin is ferrite sheet or is high strength permanent magnet body piece, and the upper end of the connection sheet 101 is fixed on branch by tack adhesive patch
The lower end of frame 1, the lower end of the connection sheet 101 and the face magnetic absorption for being provided with high strength permanent magnet iron of Magnetic adhesive mat connect
It connects.
It is provided with cross track 6 on the bracket 1, cross track 6 is cylindrical polished rod, on the cross track 6
It is provided with link block 5, traverse gear is electric pushrod 15, and the electric pushrod 15 is arranged on movable block 7, electronic to push away
The front end of bar 15 is connect with link block 5, and link block 5 is installed on cross track 6, and traverse gear is drivingly connected block 5 along cross
Mobile to track 6,6 both ends of cross track are provided with movable block 7, two movable blocks 7 respectively with two 8 screw threads of lead screw
Connection, two lead screws 8 are arranged on bracket 1, and two lead screws 8 are distributed in the left and right sides of bracket 1, longitudinal transmission
Device drives lead screw 8 to rotate, and longitudinal driving device includes motor 9, driving gear 10, driven gear 11, Left Drive gear 12, the right side
Transmission gear 13 and flat-toothed belt 14, the motor 9 are arranged on bracket 1, are connected on the output shaft of the motor 9
Driving gear 10, driving gear 10 and driven gear 11 are intermeshed, and the driven gear 11 is disposed therein a lead screw 8
On, it is additionally provided with Left Drive gear 12 on the lead screw 8, is provided with right transmission gear on another lead screw 8 in two lead screws 8
13, Left Drive gear 12 is connect with right transmission gear 13 by flat-toothed belt 14.
The lifting of 5 lower end of link block is connected with hanger 2, and hanger 2 is rectangular frame structure, the upper end and 5 lower end of link block
Connection is provided with jackscrew 24 on top plate, and jackscrew 24 is threadedly coupled with the top plate of hanger 2, the lower end of jackscrew 24 pass through bearing and
Electromagnetism push rod 3 connects, and 2 lower end of hanger is provided with bottom plate, electromagnetism push rod 3 is provided between top plate and bottom plate, and the electromagnetism pushes away
The lower end of the slip shaft of bar 3 passes through the bottom plate of hanger 2, and the lower end of the slip shaft of the electromagnetism push rod 3 under bottom plate is provided with bullet
Property pressure head 4.Compensating squeeze head 4 is the elastic rubber pressure head that 3 lower end of electromagnetism push rod is arranged in.Guiding is provided on the side plate of hanger 2
Slot 17, guide pad 18 is provided on the side wall of the electromagnetism push rod 3, and the guide pad 18 is arranged in guide groove 17.
The electromagnetism push rod 3 includes shell 31, coil 32, slip shaft 33 and reset spring 16, the shell 31
It is inside provided with coil 32, slip shaft 33 is installed in coil 32, is arranged between the upper end end cap and shell 31 of slip shaft 33
There is reset spring 16, the reset spring 16 is sleeved on slip shaft 33, and the slip shaft 33 includes on permanent magnet
Portion 34 and nonmetallic rod-shaped lower part 35, the lower end on permanent magnet top 34 is connect with the upper end of nonmetallic rod-shaped lower part 35, described
Compensating squeeze head 7 is arranged in the lower end of nonmetallic rod-shaped lower part 35.
In use, Magnetic adhesive mat 19 to be first pasted onto the quadrangle of fuel charger keyboard, then by 1 magnetic absorption of bracket in magnetism
On patch 19, jackscrew 24 is first adjusted, the height of electromagnetism push rod 3 is adjusted by jackscrew 24, is made under the slip shaft 33 of electromagnetism push rod 3
The compensating squeeze head 4 at end is adapted to the height distance between fuel charger keyboard.
Then, start motor 9, motor 9 drives lead screw 8 to rotate by driving gear 10, to make 12 turns of Left Drive gear
Dynamic, Left Drive gear 12 drives right transmission gear 13 to rotate by flat-toothed belt 14, rotates another lead screw 8, and 8 liang of lead screw
End is connect with 1 bearing of bracket, then the movable block 7 being threadedly coupled with lead screw 8 is moved along lead screw 8, to make cross track 6 along lead screw
8 is mobile, adjusts the lengthwise position of link block 5.After lengthwise position adjusts, start electric pushrod 15, electric pushrod 15 pushes and pulls
Link block 5, making link block 5, transversely track 6 is mobile, realizes to the adjustment of the lateral position of link block 5, so far completes link block
The adjustment of 5 positions makes the surface of some key of 4 face fuel charger keyboard of compensating squeeze head.
To 3 power transmission of electromagnetism push rod, electromagnetism push rod 3 it is electric after its coil 32 generate magnetic field, adsorbed under magnetic fields flexible
The permanent magnet top 34 of mandrel 33 moves down, and the slip shaft 33 of electromagnetism push rod 3 extends downwardly, the bullet of 33 lower end of slip shaft
Property pressure head 4 press down on fuel charger keyboard key, later, electromagnetism push rod 3 rapidly power off, 32 power loss of coil of electromagnetism push rod 3,
Magnetic field disappears, and slip shaft 33 bounces back, and completes the primary pressing to fuel charger keyboard, observes fuel charger display screen, sees if there is
Mutually should the input of key show, can be just in high strong electromagnetic radiation if any the key for then illustrating the fuel charger keyboard
It is often used, it is otherwise undesirable.So far, in the case of completing high strong electromagnetic radiation, the inspection of a key of fuel charger keyboard,
Above-mentioned movement is repeated, mobile 4 position of compensating squeeze head successively checks all keys of fuel charger keyboard.
As shown in figure 3, the settable control cabinet of the utility model, control cabinet is interior to be arranged control system, the control system
Including power supply 20, controller 21, displacement sensor 22, the time relay 23, power supply 20 connects motor 9 by electric wire, electronic pushes away
Bar 15 and electromagnetism push rod 3 provide electric energy for motor 9, electric pushrod 15 and electromagnetism push rod 3, and displacement sensor 22 is arranged in elasticity
On pressure head 4, the location information of compensating squeeze head 4 is passed into controller 21, controller 21 connects motor 9, displacement by control line
Sensor 22, electric pushrod 15 and electromagnetism push rod 3, controller 21 control motor 9 and electronic according to the location information of compensating squeeze head 4
The opening and closing of push rod 15 is adjusted the lengthwise position and lateral position of compensating squeeze head 4, and the time relay 23 is connected by control line
Controller 21 is connect, controller 21 controls the time interval of the power on/off of electromagnetism push rod 3 by the time relay 23.
Threaded hole, the bracket of the utility model can also be arranged in the utility model on fuel charger keyboard in actual use
1 lower end is connect by bolt with fuel charger keyboard；Or the lower end of bracket 1 is connect by double-sided adhesive with fuel charger keyboard；Or
The lower end of person's bracket 1 is connected by binding strap and the binding of fuel charger keyboard.It is either bolted or sticking double faced adhesive tape connects
Perhaps binding strap binding connection or Magnetic adhesive mat 19 are connect, can be selected according to scene.
It is noted that embodiment described above is the affiliated skill to the illustrative and not limiting of technical solutions of the utility model
The equivalent replacement of art field those of ordinary skill or the other modifications made according to the prior art, as long as practical not new beyond this
The thinking and range of type technical solution, should be included within interest field required by the utility model.
Claims (9)
1. a kind of fuel charger radio frequency electromagnetic field radiation immunity experiment keyboard detecting device, it is characterised in that: including bracket
(1), hanger (2), electromagnetism push rod (3), compensating squeeze head (4), longitudinal driving device, link block (5) and cross track (6), it is described
Bracket (1) setting cross track (6), the cross track are provided in fuel charger keyboard surrounding, the bracket (1)
(6) it is provided on link block (5), traverse gear is drivingly connected block (5) transversely mobile, described transverse rails of track (6)
Road (6) both ends are provided with movable block (7), and two movable blocks (7) are threadedly coupled with two lead screws (8) respectively, two lead screws (8)
It is arranged on bracket (1), and two lead screws (8) are distributed in the left and right sides of bracket (1), the longitudinal driving device driving
Lead screw (8) rotation, the lifting of the link block (5) lower end are connected with hanger (2), are provided with electromagnetism on the hanger (2) and push away
The lower end of bar (3), the electromagnetism push rod (3) is connected with compensating squeeze head (4).
2. fuel charger radio frequency electromagnetic field radiation immunity experiment keyboard detecting device according to claim 1, feature
Be: the longitudinal driving device include motor (9), driving gear (10), driven gear (11), Left Drive gear (12),
Right transmission gear (13) and flat-toothed belt (14), the motor (9) be arranged on bracket (1), the motor (9) it is defeated
It is connected on shaft driving gear (10), driving gear (10) and driven gear (11) are intermeshed, the driven gear
(11) it is disposed therein on a lead screw (8), is additionally provided with Left Drive gear (12) on the lead screw (8), in two lead screws (8)
It is provided with right transmission gear (13) on another lead screw (8), Left Drive gear (12) and right transmission gear (13) are passed by tooth form
Dynamic band (14) connects.
3. fuel charger radio frequency electromagnetic field radiation immunity experiment keyboard detecting device according to claim 1, feature
Be: the traverse gear is electric pushrod (15), and the electric pushrod (15) is arranged on movable block (7), electricity
The front end of dynamic push rod (15) is connect with link block (5), and the cross track (6) is cylindrical polished rod, the link block (5)
It is installed on cross track (6).
4. fuel charger radio frequency electromagnetic field radiation immunity experiment keyboard detecting device according to claim 1, feature
Be: the hanger (2) is rectangular frame structure, and the upper end is connect with link block (5) lower end, and top is provided on top plate
Silk (24), jackscrew (24) are threadedly coupled with the top plate of hanger (2), and the lower end of jackscrew (24) is connected by bearing and electromagnetism push rod (3)
It connects, hanger (2) lower end is provided with bottom plate, is provided between top plate and bottom plate electromagnetism push rod (3), the electromagnetism push rod (3)
The lower end of slip shaft (33) passes through the bottom plate of hanger (2), and the lower end of the slip shaft (33) of the electromagnetism push rod (3) under bottom plate is set
It is equipped with compensating squeeze head (4).
5. fuel charger radio frequency electromagnetic field radiation immunity experiment keyboard detecting device according to claim 4, feature
It is: is provided with guide groove (17) on the side plate of the hanger (2), is provided with and leads on the side wall of the electromagnetism push rod (3)
To block (18), the guide pad (18) setting is in guide groove (17).
6. fuel charger radio frequency electromagnetic field radiation immunity experiment keyboard detecting device according to claim 1, feature
Be: the bracket (1) is erected at fuel charger keyboard surrounding, the Magnetic adhesive mat (19) one side by Magnetic adhesive mat (19)
For sticky glue, high strength permanent magnet iron is arranged in another side, and the sticky glue of Magnetic adhesive mat (19) is pasted on one side on fuel charger keyboard, institute
For the Magnetic adhesive mat (19) stated by high strength permanent magnet ferromagnetism adsorption support (1), the bracket (1) is non-metal frame, described
The lower end of bracket (1) be provided with connection sheet (101), the connection sheet (101) be irony connection sheet or be ferrite sheet or
For high strength permanent magnet body piece, the upper end of the connection sheet (101) is fixed on the lower end of bracket (1) by tack adhesive patch, described
The lower end of connection sheet (101) connect with the face magnetic absorption for being provided with high strength permanent magnet iron of Magnetic adhesive mat (19).
7. fuel charger radio frequency electromagnetic field radiation immunity experiment keyboard detecting device according to claim 1, feature
Be: the lower end of the bracket (1) is connect by bolt with fuel charger keyboard；Or the lower end of bracket (1) passes through double-sided adhesive
It is connect with fuel charger keyboard；Or the lower end of bracket (1) is connected by binding strap and the binding of fuel charger keyboard.
8. fuel charger radio frequency electromagnetic field radiation immunity experiment keyboard detecting device according to claim 1, feature
Be: the compensating squeeze head (4) is elastic rubber pressure head of the setting in the lower end of the slip shaft (33) of electromagnetism push rod (3).
9. fuel charger radio frequency electromagnetic field radiation immunity experiment keyboard detecting device according to claim 4, feature
Be: the electromagnetism push rod (3) includes shell (31), coil (32), slip shaft (33) and reset spring (16), described
It is provided with coil (32) in shell (31), slip shaft (33) is installed in coil (32), the upper end end cap of slip shaft (33)
It is provided between shell (31) reset spring (16), the reset spring (16) is sleeved on slip shaft (33), described
Slip shaft (33) include permanent magnet top (34) and nonmetallic rod-shaped lower part (35), the lower end of permanent magnet top (34) with it is non-
The upper end of metallic rod shaped lower part (35) connects, and compensating squeeze head (4) are arranged in the lower end of the nonmetallic rod-shaped lower part (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820885144.3U CN208224398U (en) | 2018-06-08 | 2018-06-08 | Fuel charger radio frequency electromagnetic field radiation immunity experiment keyboard detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820885144.3U CN208224398U (en) | 2018-06-08 | 2018-06-08 | Fuel charger radio frequency electromagnetic field radiation immunity experiment keyboard detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208224398U true CN208224398U (en) | 2018-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820885144.3U Active CN208224398U (en) | 2018-06-08 | 2018-06-08 | Fuel charger radio frequency electromagnetic field radiation immunity experiment keyboard detecting device |
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| CN (1) | CN208224398U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108693425A (en) * | 2018-06-08 | 2018-10-23 | 河南省计量科学研究院 | Fuel charger radio frequency electromagnetic field radiation immunity experiment keyboard detecting device |
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2018
- 2018-06-08 CN CN201820885144.3U patent/CN208224398U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108693425A (en) * | 2018-06-08 | 2018-10-23 | 河南省计量科学研究院 | Fuel charger radio frequency electromagnetic field radiation immunity experiment keyboard detecting device |
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