CN207882421U - Electronic load device - Google Patents
Electronic load device Download PDFInfo
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- CN207882421U CN207882421U CN201820155987.8U CN201820155987U CN207882421U CN 207882421 U CN207882421 U CN 207882421U CN 201820155987 U CN201820155987 U CN 201820155987U CN 207882421 U CN207882421 U CN 207882421U
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Abstract
The utility model discloses a kind of electronic load devices, are related to testing field, which includes：Load babinet, monitoring box body, adjustable resistance and resistance control assembly.Resistance control assembly includes：Operating mechanism and executing agency.Adjustable resistance and executing agency are located at load box house, and executing agency connect with adjustable resistance, to adjust the resistance value of adjustable resistance.Operating mechanism is located inside monitoring box body, and operating mechanism is connect with executing agency by resistance pilot, so that the control signal of operating mechanism can be transmitted to executing agency.The arrangement space that can solve adjustable resistance is restricted, and leads to the problem that the maximum load power that electronic load device can provide is small.
Description
Technical field
The utility model is related to testing field more particularly to a kind of electronic load devices.
Background technology
Since second industrial revolution, electric energy gos deep into the every aspect of people’s lives already, the offer as electric energy
Person, all kinds of power supplys emerge one after another, and the spread in performance of these power supplys is uneven, in order to understand the performance of these power supplys, need to carry out electricity
Source is tested.
Electronic load device is the important instrument of power supply test, and various forms of loads can be provided for power supply test, existing
The arrangement space of some electronic load device generally existing adjustable resistances is restricted, and causes electronic load device that can provide most
The problems such as heavy load power is small.
Utility model content
The utility model provides a kind of electronic load device, and the arrangement space that can solve adjustable resistance is restricted, leads
Cause the problem that the maximum load power that electronic load device can provide is small.
The utility model embodiment provides a kind of electronic load device, including：Load babinet, monitoring box body, adjustable resistance
With resistance control assembly；
The resistance control assembly includes：Operating mechanism and executing agency；
The adjustable resistance and the executing agency are located at the load box house, the executing agency with it is described adjustable
Resistance connects, to adjust the resistance value of the adjustable resistance；
The operating mechanism is located inside the monitoring box body, and the operating mechanism passes through resistance control with the executing agency
Conducting wire connection processed, so that the control signal of the operating mechanism can be transmitted to the executing agency.
Since the executing agency of resistance control assembly and operating mechanism to be arranged in two babinets, make operating mechanism
The arrangement space of adjustable resistance is no longer tied up, therefore adjustable resistance can be increased under the premise of not increasing the test space of occupancy
Quantity, and then increase the maximum load power that can provide of electronic load device.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those skilled in the art, without having to pay creative labor,
Other drawings may also be obtained based on these drawings.
Fig. 1 is the sectional view for the electronic load device that the utility model first embodiment provides；
Fig. 2 is the sectional view for the electronic load device that the utility model second embodiment provides；
Fig. 3 is the first structural representation of executing agency in the electronic load device that the utility model second embodiment provides
Figure；
Fig. 4 is second of structural representation of executing agency in the electronic load device that the utility model second embodiment provides
Figure；
Fig. 5 is the third structural representation of executing agency in the electronic load device that the utility model second embodiment provides
Figure；
Fig. 6 is the sectional view for the electronic load device that the utility model 3rd embodiment provides；
Fig. 7 is the front view of monitoring box body in the electronic load device that the utility model 3rd embodiment provides；
Fig. 8 is the Section A-A figure of monitoring box body in Fig. 7；
Fig. 9 is the front view of load box in the electronic load device that the utility model 3rd embodiment provides.
Specific implementation mode
It, below will knot to enable the purpose of utility model, feature, advantage of the utility model more apparent and understandable
The attached drawing that the utility model embodiment provides is closed, the technical solution that the utility model embodiment provides is carried out clearly and completely
Description, it is clear that the described embodiments are only a part of the embodiments of the utility model, and not all embodiments.Based on this reality
The every other reality obtained without making creative work with the embodiment of novel offer, those skilled in the art
Example is applied, shall fall within the protection scope of the present invention.
Referring to Fig. 1, Fig. 1 is the sectional view for the electronic load device that the utility model first embodiment provides, such as Fig. 1 institutes
Show, which includes：Load babinet 100, monitoring box body 200, adjustable resistance 300 and resistance control assembly 400.For
Convenient for explanation, only to load in babinet 100, only there are one the case where adjustable resistance 300 to illustrate adjustable resistance 300 and electricity in Fig. 1
The connection relation of control assembly 400 is hindered, multiple adjustable resistances can be had by loading to open in babinet 100, the number of resistance control assembly 400
Amount is identical as the quantity of adjustable resistance 300, and each adjustable resistance 300 is identical as the connection relation of each resistance control assembly 400.
Resistance control assembly 400 includes：Operating mechanism 410 and executing agency 420.
Adjustable resistance 300 and executing agency 420 are located inside load babinet 100, executing agency 420 and adjustable resistance 300
Connection, to adjust the resistance value of adjustable resistance 300.
Operating mechanism 410 is located inside monitoring box body 200, and operating mechanism 410 is led with executing agency 420 by resistance control
Line 500 connects, so that the control signal of operating mechanism 410 can be transmitted to executing agency 420.
In practical applications, executing agency 420 is received by resistance pilot 500 is sent by operating mechanism 410
Signal is controlled, and is moved accordingly in response to the control signal, and the resistance adjustment part of adjustable resistance 300 is driven to transport
It is dynamic, and then adjust the resistance value of adjustable resistance 300.
It should be noted that resistance control assembly and adjustable resistance are integrated in a babinet by existing electronic load device
In.When carrying out power supply test, in order to avoid electronic load device occupies the excessive test space, the babinet of electronic load device
Size receives limitation, and resistance control assembly has tied up the arrangement space of adjustable resistance, limits the quantity of adjustable resistance, in turn
Limit the maximum load power that electronic load device can provide.
Electronic load device provided in this embodiment, by the executing agency 420 of resistance control assembly 400 and operating mechanism
410 are arranged in load babinet 100 and monitoring box body 200, and adjustable resistance 300 is arranged in load babinet 100, manipulates machine
Structure 410 no longer ties up the arrangement space of adjustable resistance 300, therefore can increase the quantity of adjustable resistance 300, and then increases Electronic Negative
The maximum load power set and can provided is provided.Simultaneously when carrying out power supply test, it is empty only to load 100 engaged test of babinet
Between, therefore the present embodiment can increase the quantity of adjustable resistance 300 under the premise of not increasing the test space of occupancy, increase electricity
The maximum load power that sub- load device can provide.
Optionally, it is provided with threading hole on the surface of load babinet 100 and monitoring box body 200, so that resistance control is led
Line 500 passes through.
In the present embodiment, since the executing agency of resistance control assembly and operating mechanism are arranged in two babinets
It is interior, so that operating mechanism is no longer tied up the arrangement space of adjustable resistance, therefore can under the premise of not increasing the test space of occupancy,
Increase the quantity of adjustable resistance, and then increases the maximum load power that electronic load device can provide.
Referring to Fig. 2, Fig. 2 is the sectional view for the electronic load device that the utility model second embodiment provides, with Fig. 1 institutes
Unlike the electronic load device shown, in the present embodiment：
Further, as shown in Fig. 2, adjustable resistance 300 is slide rheostat 300A.
Executing agency 420 includes：Stepper motor driver 421, stepper motor 422 and transmission mechanism 423.
Operating mechanism 410 includes：Manipulate knob 411 and angular displacement sensor 412.
Angular displacement sensor 412 is connect with knob 411 is manipulated, and the angular displacement conversion for manipulating knob 411 is believed in order to control
Number.
Angular displacement sensor 412 is connect by resistance pilot 500 with stepper motor driver 421, and letter will be controlled
Number it is transferred to stepper motor driver 421.
Stepper motor driver 421 is connect with stepper motor 422, with according to the control obtained by angular displacement sensor 412
Signal Driving Stepping Motor 422 rotates.
The output shaft 422A of stepper motor 422 is connect by transmission mechanism 423 with the slide plate 301A of slide rheostat 300A,
To drive the slide plate 301A slidings of slide rheostat 300A, and then change the size of the resistance value of slide rheostat 300A.
Specifically, angular displacement sensor 412 can manipulate the angular displacement of knob 411 with the angular displacement of inductive control knob 411
Bigger, the intensity for the control signal that angular displacement sensor 412 exports is bigger.Stepper motor driver 421 is controlled by resistance
Conducting wire 500 receives the control signal of the output of angular displacement sensor 412, and according to the strong and weak Driving Stepping Motor of the control signal
422, the intensity of the control signal is bigger, and the output shaft 422A of 421 Driving Stepping Motor 422 of stepper motor driver rotates ditch
Degree is bigger.The rotation of the output shaft 422A of stepper motor 422 is transferred to the slide plate of slide rheostat 300A by transmission mechanism 423
301A, and slide plate 301A is driven to move, slide plate 301A can change the size of the resistance value of slide rheostat 300A, slide plate when moving
The distance of 301A slidings is longer, and the knots modification of the resistance value of slide rheostat 300A is bigger, then realizes by manipulating knob 411
Angular displacement size control slide rheostat 300A resistance value function.
Illustrate the principle that can change slide rheostat 300A when slide plate 301A slidings below, in practical applications, sliding becomes
Hindering device 300A includes：Slide plate 301A, metal guide rail 302A, insulating ceramics cylinder 303A, resistance wire 304A, upper binding post 305A and under
Binding post 306A.
The material of resistance wire 304A is constantan wire, and resistance wire 304A is wrapped on insulating ceramics cylinder 303A, upper binding post
305A is connect with metal guide rail 302A, and lower binding post 306A is connect with resistance wire 304A.
Slide plate 301A includes conductive sheet 301A1, and insulating part 301A1 is connect with conductive sheet 301A1, and the one of conductive sheet 301A1
End is connect with metal guide rail 302A, and can be slided on metal guide rail 302A, the other end and the resistance wire 304A of conductive sheet 301A1
Connection.
After upper binding post 305A and lower binding post 306A is connect with external circuit, electric current pass sequentially through lower binding post 306A,
Resistance wire 304A, conductive sheet 301A1, metal guide rail 302A and upper binding post 305A.Conductive sheet 301A1 is on metal guide rail 302A
Sliding can change the length of the resistance wire 304A in access circuit, and then change the size of the resistance value of slide rheostat 300A,
The length for accessing the resistance wire 304A in circuit is longer, and the resistance values of slide rheostat 300A in circuit are bigger.
Slide plate 301A further includes insulating part 301A2, and transmission mechanism 423 is connect with insulating part 301A2, insulating part 301A2 with
The rotation of the output shaft 422A of stepper motor 422 is transmitted to slide plate 301A, and band by conductive sheet 301A1 connections, transmission mechanism 423
Dynamic slide plate 301A is slided along metal guide rail 302A, to change the resistance value of slide rheostat 300A.
Optionally, referring to Fig. 3, Fig. 3 is to execute machine in the electronic load device that the utility model second embodiment provides
The first structural schematic diagram of structure, as shown in figure 3, transmission mechanism 423 includes：Gear 423A1 and rack 423A2, gear 423A1
On be provided with centre bore (not shown), the output shaft 422A of stepper motor (not shown) passes through the centre bore, and defeated
Shaft 422A and gear 423A1 are circumferentially fixed, with the 423A1 rotations of band moving gear.Gear 423A1 and rack 423A2 external toothings, tooth
It takes turns 423A1 band carry-over bar 423A2 movements, and converts circumferentially rotating for gear 423A1 to the linear motion of rack 423A2.Tooth
423A2 is connect with the slide plate 301A of slide rheostat 300A, drives slide plate 301A to be slided along metal guide rail 302A, to change cunning
The resistance value of dynamic rheostat 300A.
Optionally, referring to Fig. 4, Fig. 4 is to execute machine in the electronic load device that the utility model second embodiment provides
Second of structural schematic diagram of structure, as shown in figure 4, transmission mechanism 423 includes：Drive lead screw 423B1 and transmission nut 423B2.
Drive lead screw 423B1 and the output shaft 422A of stepper motor 422 are coaxial, and are connected by shaft coupling 423B3, stepper motor 422
Output shaft 422A drive drive lead screw 423B1 rotations, transmission nut 423B2 to be sleeved on drive lead screw 423B1, drive lead screw
The external screw thread of 423B1 and the internal thread of transmission nut 423B2 match.With the rotation of drive lead screw 423B1, drive lead screw
The external screw thread of 423B1 pushes the internal thread of transmission nut 423B2, so that axis of the transmission nut 423B2 along drive lead screw 423B1
It is mobile, and convert circumferentially rotating for drive lead screw 423B1 to the linear motion of transmission nut 423B2.Transmission nut 423B2 with
The slide plate 301A connections of slide rheostat 300A drive slide plate 301A to be slided along metal guide rail 302A, to change slide rheostat
The resistance value of 300A.
Optionally, Fig. 5 please be participate in, Fig. 5 is to execute machine in the electronic load device that the utility model second embodiment provides
The third structural schematic diagram of structure, slide rheostat 300A are circular arc shaped varistor, the axis of the output shaft 422A of stepper motor 422
The center of circle that line passes through the circular arc.Transmission mechanism 423 includes：Connecting rod 423C.The output of one end and stepper motor 422 of connecting rod 423C
Axis 422A connections, the other end of connecting rod 423C are connect with slide plate 301A, drive slide plate 301A to be slided along metal guide rail 302A, to change
Become the resistance value of slide rheostat 300A.
It should be noted that the structure of transmission mechanism 423 is not limited only to Fig. 3 to form shown in fig. 5, transmission mechanism 423
It can be that by the slide plate 301A that the movement of the output shaft 422A of stepper motor 422 is transferred to slide rheostat 300A,
And any type of transmission mechanism for driving slide plate 301A to be moved along metal guide rail 302A.
Further, resistance pilot 500 includes：Load babinet pilot 510, monitoring box body pilot 520
With non-essential resistance pilot 530.
Load box bulk resistor pilot 510 is located inside load babinet 100.
Monitoring box body resistance pilot 520 is located inside monitoring box body 200.
It loads and is provided with load box bulk resistor pilot Wiring port 110 on the surface of babinet 100.
Monitoring box body resistance pilot Wiring port 210 is provided on the surface of monitoring box body 200.
Monitoring box body resistance pilot 520 connects angular displacement sensor 412 and monitoring box body resistance pilot wiring
Port 210.
Load box bulk resistor pilot 510 connects stepper motor driver 421 and load box bulk resistor pilot connects
Line end mouth 110.
One end of non-essential resistance pilot 530 is connect with load box bulk resistor pilot Wiring port 110, external electrical
The other end of resistance pilot 530 is connect with monitoring box body resistance pilot Wiring port 210, to be connected to angular displacement sensor
The transmission channel of control signal between 412 and stepper motor driver 421.
Optionally, one end of non-essential resistance pilot 530 and load box bulk resistor pilot Wiring port 110 are removable
It connects with unloading, the other end and monitoring box body resistance pilot Wiring port 210 of non-essential resistance pilot 530 are removably
Connection, in order to the replacement of non-essential resistance pilot 530.
Further, it loads on babinet 100 and is provided with load box body external power interface 120, to connect external power supply.
Stepper motor driver 421 is connect by stepper motor conducting wire 130 with load box body external power interface 120, with
Electric power support is obtained from external power supply.
Probe power 413 is integrated on angular displacement sensor 412, to provide electric power support for angular displacement sensor 412.
In the present embodiment, first aspect is since the executing agency of resistance control assembly and operating mechanism to be arranged in
In two babinets, operating mechanism is made no longer to tie up the arrangement space of adjustable resistance, therefore can be in the test space for not increasing occupancy
Under the premise of, increase the quantity of adjustable resistance, and then increase the maximum load power that electronic load device can provide.Second party
Face, since signal, stepper motor driver receive the control to angular displacement sensor in order to control by the action for manipulating knob conversion
Driving Stepping Motor rotates corresponding angle after signal, and the output shaft of stepper motor drives slide rheostat by transmission mechanism
Slide plate moves in metal guide rail, realizes the adjusting of slide rheostat, and due to the control accuracy of stepper motor height, therefore can essence
Really adjust the size of the resistance value of slide rheostat.
It is and above-mentioned referring to Fig. 6, Fig. 6 is the sectional view of electronic load device that the utility model 3rd embodiment provides
Unlike Fig. 1 and electronic load device shown in Fig. 2, in the present embodiment：
Further, as shown in fig. 6, the electronic load device further includes：Resistance states monitor component 600.
Resistance states monitor that component 600 includes：Monitoring probe 610 and resistance states monitor processor 620.
Monitoring probe 610 is connect with slide rheostat 300A, to obtain the electric current of the electric current by slide rheostat 300A
The voltage data of data and the both ends slide rheostat 300A.
Resistance states monitoring processor 620 is located inside monitoring box body 200, and resistance states monitoring processor 620 passes through electricity
Resistance status data line 700 is connect with monitoring probe 610, is obtained with the voltage data and current data that are obtained by monitoring probe 610
Power data.
Specifically, when by slide rheostat 300A be direct current when, resistance states monitoring processor 620 pass through under
Formula：
P=UI (1)
Calculate the power of the electric energy by slide rheostat 300A.P is the electric energy by slide rheostat 300A in formula (1)
Power, U is the voltage data at the both ends slide rheostat 300A obtained by monitoring probe 610, and I is 610 to be obtained by monitoring probe
The current data of the electric current by slide rheostat 300A obtained.
When by slide rheostat 300A be alternating current when, resistance states monitoring processor 620 pass through following formula：
Calculate the mean power of the electric energy in a cycle by slide rheostat 300A.P is in a cycle in formula (2)
By the mean power of the electric energy of slide rheostat 300A, U (t) is the slide rheostat 300A obtained by monitoring probe 610
The voltage data at both ends, I (t) are the current data of the electric current by slide rheostat 300A obtained by monitoring probe 610, T
To pass through the period of the alternating current of slide rheostat 300A.
Further, as shown in fig. 6, resistance states data line 700 includes load box bulk resistor status data line 710, prison
Control babinet resistance states data line 720 and non-essential resistance status data line 730.
Load box bulk resistor status data line 710 is located inside load babinet 100.
Monitoring box body resistance states data line 720 is located inside monitoring box body 200.
It loads and is provided with load box bulk resistor status data line Wiring port 140 on the surface of babinet 100.
Monitoring box body resistance states data line Wiring port 220 is provided on the surface of monitoring box body 200.
The connection monitoring of load box bulk resistor status data line 710 probe 610 and load box bulk resistor status data line wiring
Port 140.
Monitoring box body resistance states data line 720 connects resistance states monitoring processor 620 and monitoring box body resistance states
Data line Wiring port 220.
One end of non-essential resistance status data line 730 is connect with load box bulk resistor status data line Wiring port 140, outside
The other end of portion's resistance states data line 730 is connect with monitoring box body resistance states data line Wiring port 220.To be connected to monitoring
Probe 610 sends the data transmission channel of current data and voltage data to resistance states monitoring processor 620.
Further, as shown in fig. 7, Fig. 7 is to be monitored in the electronic load device that the utility model 3rd embodiment provides
The front view of babinet, as shown in fig. 7, resistance states monitoring component 600 further includes display 630, display 630 is fixed on monitoring
On babinet 200.
Referring to Fig. 8, Fig. 8 is the Section A-A figure of monitoring box body in Fig. 7, as shown in figure 8, display 630 and resistance states
Monitor processor 620 connect, for show in the form of images by resistance states monitoring processor 620 obtain voltage data,
Current data and power data.
Specifically, resistance states monitoring processor 620 converts voltage data, current data and power data to display
630 manageable data, and be transferred to display 630, display 630 is by the voltage data received, current data and work(
Rate data are shown in the form of images.
Further, as shown in figure 8, being provided with monitoring box body external power interface 230 on monitoring box body 200.
Display 630 is connect by display conducting wire 240 with monitoring box body external power interface 230, with external power supply
Connection, the external power supply are that display 630 provides electric power support.
Switch 241 is provided on display conducting wire 240, to control the opening and closing of display 240.
Specifically, when switch 241 is closed, external power supply is powered to display 630, and 630 in open state at display,
When switch 241 disconnects, external power supply stops powering to display 630, and display 630 is closed.
Display fuse 242 is additionally provided on display conducting wire 240, when in display conducting wire 240 by electric current send out
When raw abnormal, display fuse 242 fuses, and the connection of external power supply and display 630 is disconnected, to protect display 630.
Optionally, display fuse 242 is removably connect with display conducting wire 240, in order to display fuse
242 replacement.For example, when being more than by surge current, the maximum value of the current strength of the surge current in display conducting wire 240
The maximum intensity that display 630 can be born, the then fusing of fuse 242 damage display 630 to avoid the surge current.
Resistance states monitor processor 620 and monitor processor conducting wire 250 and the company of external power interface 230 by resistance states
It connects, to be connect with external power supply, which is that resistance states monitoring processor 620 provides electric power support.
Resistance states monitoring processor fuse 251 is provided on resistance states monitoring processor conducting wire 250, when resistance shape
In state monitoring processor conducting wire 250 by electric current be abnormal when, resistance states monitor processor fuse 251 and fuse, and break
The connection for opening external power supply and resistance states monitoring processor 250, with protective resistance status monitoring processor 250.
Optionally, resistance states monitoring processor conducting wire 250 and display conducting wire 240 can share the same switch and same
One fuse, the switch control opening and the closing of resistance states monitoring processor 620 and display 630 simultaneously.When this is led
In line by electric current resistance states can be made to monitor any one in processor 620 or display 630 damage when, the fuse is molten
It is disconnected, with protective resistance status monitoring processor 620 and display 630 simultaneously.
Further, as shown in fig. 6, the electronic load device further includes resistance temperature control assembly 800.
Resistance temperature control assembly 800 includes：Temperature sensor 810, resistance temperature control processor 820 and fan 830.
Temperature sensor 810 is located on slide rheostat 300A, to obtain the temperature data of slide rheostat 300A.
Resistance temperature control processor 820 is located inside load babinet 100, and resistance temperature control processor 820 passes through electricity
Resistance temperature data line 900 is connect with temperature sensor 810, to obtain the temperature of slide rheostat 300A.
Fan 830 is located on load babinet 100, to reduce the temperature inside load babinet 100.
When the temperature of slide rheostat 300A is higher than preset first temperature threshold, resistance temperature control processor 820
Control fan 830 starts running, and fan 830 is passed through extraneous air into load babinet 100, and 100 inside of accelerating weight babinet is empty
The thermal convection current of gas and load 100 extraneous air of babinet to reduce the temperature inside load babinet 100, and then reduces sliding variable resistance
The temperature of device 300A, in case slide rheostat is damaged because temperature is excessively high.830 continuous running of fan, until slide rheostat
The temperature of 300A is less than preset second temperature threshold value, and resistance temperature control processor 820 controls fan 830 and shuts down, with
The temperature for exempting from slide rheostat 300A is too low, causes the resistance of slide rheostat 300A that excessive change occurs, makes power supply test
As a result inaccurate.The second temperature threshold value is less than first temperature threshold.
Fan power supply 831 is integrated on fan 830, to provide electric power support for fan 830.
Further, referring to Fig. 9, Fig. 9 is to be loaded in the electronic load device that the utility model 3rd embodiment provides
The front view of case loads and is additionally provided with test circuit terminating wire port 1000 on the surface of babinet 100, with electric with external testing
Road (not shown) connection.
In the present embodiment, first aspect is since the executing agency of resistance control assembly and operating mechanism to be arranged in
In two babinets, operating mechanism is made no longer to tie up the arrangement space of adjustable resistance, therefore can be in the test space for not increasing occupancy
Under the premise of, increase the quantity of adjustable resistance, and then increase the maximum load power that electronic load device can provide.Second party
Face, since signal, stepper motor driver receive the control to angular displacement sensor in order to control by the action for manipulating knob conversion
Driving Stepping Motor rotates corresponding angle after signal, and the output shaft of stepper motor drives slide rheostat by transmission mechanism
Slide plate moves in metal guide rail, realizes the adjusting of slide rheostat, and due to the control accuracy of stepper motor height, therefore can essence
Really adjust the size of the resistance value of slide rheostat.The third aspect monitors component, and resistance states due to being provided with resistance states
It monitors that component has display, therefore can intuitively embody the state of adjustable resistance.Fourth aspect, due to being provided with temperature control
Component can not only be burnt out, but also can prevent by the temperature control of adjustable resistance within the scope of default temperature to avoid adjustable resistance
The resistance value of adjustable resistance is because temperature factor change is excessive.5th aspect, due to being provided with test circuit terminating wire port, therefore
When with external test circuitry, easy-to-connect.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiments.
It is description to electronic load device provided by the utility model above, for those skilled in the art, according to
According to the thought of the utility model embodiment, there will be changes in the specific implementation manner and application range, to sum up, this explanation
Book content should not be construed as a limitation of the present invention.
Claims (10)
1. a kind of electronic load device, which is characterized in that including：Load babinet, monitoring box body, adjustable resistance and resistance control group
Part；
The resistance control assembly includes：Operating mechanism and executing agency；
The adjustable resistance and the executing agency are located at the load box house, the executing agency and the adjustable resistance
Connection, to adjust the resistance value of the adjustable resistance；
The operating mechanism is located inside the monitoring box body, and the operating mechanism is led with the executing agency by resistance control
Line connects, so that the control signal of the operating mechanism can be transmitted to the executing agency.
2. electronic load device as described in claim 1, which is characterized in that the adjustable resistance is slide rheostat；
The executing agency includes：Stepper motor driver, stepper motor and transmission mechanism；
The operating mechanism includes：Manipulate knob and angular displacement sensor；
The angular displacement sensor is connect with the manipulation knob, converts the angular displacement for manipulating knob to the control
Signal；
The angular displacement sensor is connect by the resistance pilot with the stepper motor driver, by the control
Signal transmission gives the stepper motor driver；
The stepper motor driver is connect with the stepper motor, with according to the control obtained by the angular displacement sensor
Signal processed drives the stepper motor rotation；
The output shaft of the stepper motor is connect by the transmission mechanism with the slide plate of the slide rheostat, described in drive
The slide plate of slide rheostat slides.
3. electronic load device as claimed in claim 2, which is characterized in that the resistance pilot includes load babinet electricity
Hinder pilot, monitoring box body resistance pilot and non-essential resistance pilot；
The load box bulk resistor pilot is located at the load box house；
The monitoring box body resistance pilot is located inside the monitoring box body；
It is provided with load box bulk resistor pilot Wiring port on the surface of the load babinet；
Monitoring box body resistance pilot Wiring port is provided on the surface of the monitoring box body；
The monitoring box body resistance pilot connects the angular displacement sensor and the monitoring box body resistance pilot connects
Line end mouth；
The load box bulk resistor pilot connects the stepper motor driver and the load box bulk resistor pilot
Wiring port；
One end of the non-essential resistance pilot is connect with the load box bulk resistor pilot Wiring port, the outside
The other end of resistance pilot is connect with the monitoring box body resistance pilot Wiring port.
4. electronic load device as claimed in claim 3, which is characterized in that it is external to be provided with load box on the load babinet
Portion's power interface；
The stepper motor driver is connect by stepper motor conducting wire with load box ectosome portion power interface；
It is integrated with probe power on the angular displacement sensor.
5. electronic load device as claimed in claim 2, which is characterized in that the electronic load device further includes：Resistance shape
State monitors component；
The resistance states monitor that component includes：Monitoring probe and resistance states monitor processor；
The monitoring probe is connect with the slide rheostat, to obtain the current data of the electric current by the slide rheostat
With the voltage data at the slide rheostat both ends；
The resistance states monitoring processor is located inside the monitoring box body, and the resistance states monitoring processor passes through resistance
Status data line is connected with monitoring probe, is obtained with the voltage data and current data that are obtained by the monitoring probe
Power data.
6. electronic load device as claimed in claim 5, which is characterized in that the resistance states data line includes load babinet
Resistance states data line, monitoring box body resistance states data line and non-essential resistance status data line；
The load box bulk resistor status data line is located at the load box house；
The monitoring box body resistance states data line bit is inside the monitoring box body；
It is provided with load box bulk resistor status data line Wiring port on the surface of the load babinet；
Monitoring box body resistance states data line Wiring port is provided on the surface of the monitoring box body；
The load box bulk resistor status data line connects the monitoring probe and the load box bulk resistor status data line connects
Line end mouth；
The monitoring box body resistance states data line connects the resistance states monitoring processor and the monitoring box body resistance shape
State data line Wiring port；
One end of the non-essential resistance status data line is connect with the load box bulk resistor status data line Wiring port, described
The other end of non-essential resistance status data line is connect with the monitoring box body resistance states data line Wiring port.
7. electronic load device as claimed in claim 6, which is characterized in that the resistance states monitoring component further includes display
Device；
The display is fixed on the monitoring box body；
The display is connect with resistance states monitoring processor, for being shown in the form of images by the resistance states
Monitor the voltage data, the current data and the power data that processor obtains.
8. electronic load device as claimed in claim 7, which is characterized in that be provided with outside monitoring box body on the monitoring box body
Portion's power interface；
The display is connect by display conducting wire with the monitoring box body external power interface；
The resistance states monitoring processor monitors processor conducting wire by resistance states and is connect with external power interface；
It is provided with switch on the display conducting wire, to control the opening and closing of the display；
It is additionally provided with display fuse on the display conducting wire, to protect the display；
Resistance states monitoring processor fuse is provided on the resistance states monitoring processor conducting wire, to protect the resistance
Status monitoring processor.
9. electronic load device as claimed in claim 2, which is characterized in that the electronic load device further includes：Resistance temperature
Spend control assembly；
The resistance temperature control assembly includes：Temperature sensor, resistance temperature control processor and fan；
The temperature sensor is located on the slide rheostat, to obtain the temperature data of the slide rheostat；
The resistance temperature control processor is located at the load box house, and the resistance temperature control processor passes through resistance
Temperature data line is connect with the temperature sensor；
The fan is located on the load babinet, to reduce the temperature of the load box house；
It is integrated with fan power supply on the fan.
10. electronic load device as claimed in claim 2, which is characterized in that be additionally provided on the surface of the load babinet
Test circuit terminating wire port, to be connect with external test circuitry.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820155987.8U CN207882421U (en) | 2018-01-30 | 2018-01-30 | Electronic load device |
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| CN201820155987.8U CN207882421U (en) | 2018-01-30 | 2018-01-30 | Electronic load device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111313433A (en) * | 2020-04-11 | 2020-06-19 | 温州市森脉电力设备有限公司 | Reactive power compensation device for power equipment |
| CN112067896A (en) * | 2020-09-08 | 2020-12-11 | 福建育巢信息科技有限公司 | Integrated intelligent tester for transformation ratio direct resistance on-load impedance |
-
2018
- 2018-01-30 CN CN201820155987.8U patent/CN207882421U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111313433A (en) * | 2020-04-11 | 2020-06-19 | 温州市森脉电力设备有限公司 | Reactive power compensation device for power equipment |
| CN112067896A (en) * | 2020-09-08 | 2020-12-11 | 福建育巢信息科技有限公司 | Integrated intelligent tester for transformation ratio direct resistance on-load impedance |
| CN112067896B (en) * | 2020-09-08 | 2023-04-21 | 安康陕变智能电力装备制造有限公司 | Transformation ratio direct resistance on-load impedance integrated intelligent tester |
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