CN216013561U - Synchronous testing device for corona resistance of new energy vehicle motor - Google Patents

Abstract

The utility model discloses a synchronous testing arrangement of corona resistance of new forms of energy car motor belongs to insulating material corona resistance detection technical field, the on-line screen storage device comprises a base, the top fixed mounting of base has the test box, it has test system to carry on in the test box, the inner chamber fixed mounting of test box has the fixing base, the surface equidistance of fixing base has seted up the standing groove, the inner chamber of standing groove is equipped with the insulation board, the insulation board is fixed in the inner chamber of standing groove through fixed subassembly, the inside of fixing base and the below that is located the standing groove fixed mounting have the jacking subassembly; the utility model discloses a setting of fixed subassembly can be fixed the insulating material that needs the test, through setting up a plurality of standing grooves, can carry out corona resistance capability test to a plurality of test samples simultaneously, insulating material is fixed in the inner chamber of standing groove to it is fixed to carry out the chucking through the cardboard, can prevent that insulating material from taking place to remove in the test procedure.

Description

Synchronous testing device for corona resistance of new energy vehicle motor

Technical Field

The utility model relates to a corona-resistant detection technology field of insulating material specifically is a synchronous testing arrangement of corona-resistant performance of new energy vehicle motor.

Background

When the variable frequency motor works under high-frequency and rapidly-changing repeated pulse voltage, the electrical stress generated by the overvoltage at the end part is unevenly distributed in the insulation of the motor stator, so that partial discharge is easily caused to gradually corrode the surface of an insulating material, and finally, the insulation failure phenomenon occurs.

In order to test the corona resistance of the insulating material under high-frequency and high-voltage pulse voltage and reduce errors generated in the actual operation process, the test system has the characteristics of flexible parameter adjustment, simultaneous measurement of multiple paths, no change of voltage parameters after single-path breakdown, no influence on continuous and stable operation of the device, safe and reliable operation of the whole device and the like.

The existing synchronous testing device for the corona resistance of the new energy vehicle motor has a poor fixing effect on an insulating material in the process of testing the corona resistance of the insulating material, the stability of the insulating material in the testing process is influenced, and the accuracy of a testing result is further influenced, so that the synchronous testing device for the corona resistance of the new energy vehicle motor needs to be provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a synchronous testing arrangement of corona resistance performance of new energy vehicle motor possesses and fixes the advantage in order to promote test stability to insulating material in the test procedure to solve the problem that proposes in the above-mentioned background art.

In order to achieve the purpose, the utility model provides a synchronous testing arrangement of corona resistance of new forms of energy car motor, including the base, the top fixed mounting of base has the test box, it has test system to carry on in the test box, the inner chamber fixed mounting of test box has the fixing base, the surface equidistance of fixing base has seted up the standing groove, the inner chamber of standing groove is equipped with the insulation board, the insulation board is fixed in the inner chamber of standing groove through fixed subassembly, the inside of fixing base and the below fixed mounting of standing groove have the jacking subassembly, the inside of fixing base is equipped with power supply module;

fixed subassembly is including locating the cardboard of standing groove inner chamber both sides and seting up the channel in the standing groove both sides, the inboard of cardboard and the surface laminating of insulation board, the inner chamber sliding connection of channel has the slider, the top fixed mounting of slider has the arm-tie, one side fixed mounting of slider has the connecting rod, the one end that the slider was kept away from to the connecting rod run through channel and standing groove in proper order and with the external contact of cardboard, the scarf has been seted up at the inboard top of cardboard, and the surface of insulation board with the surface sliding connection of scarf.

Preferably, the jacking assembly comprises an electric telescopic rod embedded in the fixed seat, the telescopic end of the electric telescopic rod penetrates through the placing groove and extends to the inner cavity of the placing groove, a jacking plate is fixedly mounted on the inner cavity of the placing groove, and the surface of the jacking plate is in contact with the bottom of the insulating plate.

Preferably, the power supply module is including locating the inside power cord of fixing base, power cord equidistance electric connection has the connecting wire, the one end electric connection that the power cord was kept away from to the connecting wire has the electrode slice, the surface of electrode slice and the bottom contact of insulation board, the outside fixed mounting that fixing base and test box and extended to the test box are run through in proper order to the one end of power cord has power plug, power plug inlays the surface of locating the test box.

Preferably, one end of the sliding block, which is far away from the connecting rod, is fixedly provided with a return spring, and one end of the return spring, which is far away from the sliding block, is fixedly arranged on the inner wall of the channel.

Preferably, the slide bars are fixedly mounted on the front side and the rear side of the inner cavity of the channel, the slide grooves matched with the slide bars are formed in the front side and the rear side of the slide blocks, and the inner walls of the slide grooves are connected with the surfaces of the slide bars in a sliding mode.

Preferably, the top of test box articulates there is the case lid, the fixed surface of case lid installs the handle, the surface of case lid just is located the back of handle and inlays and be equipped with the observation window.

Preferably, the case cover is fixedly connected with the test box through a locking assembly, the locking assembly comprises a buckle and a clamping seat, the buckle and the clamping seat are correspondingly arranged, the buckle is fixedly installed on the front surface of the case cover, the clamping seat is fixedly installed on the front surface of the test box, a clamping groove is formed in the surface of the buckle, and the inner wall of the clamping groove is clamped with the surface of the clamping seat.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a setting of fixed subassembly can be fixed the insulating material that needs the test, through setting up a plurality of standing grooves, can carry out corona resistance performance test to a plurality of test samples simultaneously, insulating material is fixed in the inner chamber of standing groove to carry out chucking through the cardboard and fix, can prevent that insulating material from taking place to remove in the test process;

2. the utility model discloses a setting of jacking subassembly can be outside the insulation board removes the standing groove after the test is accomplished, and the person of facilitating the use takes it, through the setting of power supply module, can provide stable high frequency high voltage pulse voltage for the test to satisfy the test demand.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the present invention in a partial front view;

FIG. 3 is a schematic structural view of the inside of the testing box of the present invention;

FIG. 4 is a schematic structural view of the slide bar of the present invention;

FIG. 5 is an enlarged view of the point A in FIG. 3 according to the present invention;

fig. 6 is a system block diagram of a test system according to an embodiment of the present invention.

In the figure: 1. a base; 2. a test box; 3. a fixed seat; 4. a placement groove; 5. an insulating plate; 6. clamping a plate; 7. a channel; 8. a slider; 9. pulling a plate; 10. a connecting rod; 11. an electric telescopic rod; 12. a jacking plate; 13. a power line; 14. a connecting wire; 15. an electrode sheet; 16. a power plug; 17. a return spring; 18. a slide bar; 19. a box cover; 20. an observation window; 21. buckling; 22. a card holder; 23. a clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the utility model provides a synchronous testing device for corona resistance of a new energy vehicle motor, which comprises a base 1, a testing box 2 is fixedly installed on the top of the base 1, a box cover 19 is hinged on the top of the testing box 2, a handle is fixedly installed on the surface of the box cover 19, an observation window 20 is embedded on the surface of the box cover 19 and the back surface of the handle, the box cover 19 is fixedly connected with the testing box 2 through a locking component, the locking component comprises a buckle 21 and a clamping seat 22, the buckle 21 and the clamping seat 22 are correspondingly arranged, the buckle 21 is fixedly installed on the front surface of the box cover 19, the clamping seat 22 is fixedly installed on the front surface of the testing box 2, a clamping groove 23 is formed on the surface of the buckle 21, the inner wall of the clamping groove 23 is clamped with the surface of the clamping seat 22, a testing system is loaded in the testing box 2, a fixing seat 3 is fixedly installed in the inner cavity of the testing box 2, an equidistant placing groove 4 is formed on the surface of the fixing seat 3, an insulating plate 5 is arranged in the inner cavity of the placing groove 4;

through the arrangement of the box cover 19, a test element in the test box 2 can be protected in the test process, through the arrangement of the locking assembly, the box cover 19 and the test box 2 can be fixedly connected together, and through the arrangement of the observation window 20, a user can conveniently see the test state of the insulation plate 5 in the test box 2 through the observation window 20;

the test system comprises a main control module, an interaction module, a measurement module and a recording module;

the interactive module is connected with the main control module and used for receiving the voltage parameters set by a user and sending the voltage parameters to the main control module, wherein the interactive module can provide an interactive interface so that the user can input the voltage parameters;

the main control module is connected with the power supply assembly, the measuring module and the recording module and used for controlling the power supply assembly to generate multiple paths of high-frequency high-voltage pulses according to the voltage parameters and sending a starting instruction to the measuring module and the recording module, wherein each path of high-frequency high-voltage pulse is correspondingly applied to one insulating material sample, the multiple paths of high-frequency high-voltage pulses generated by the power supply assembly are respectively applied to the multiple insulating material samples, and the measuring module and the recording module start to work while pressurizing;

the measurement module is used for measuring whether each insulating material sample is punctured according to a starting instruction, sending a first measurement signal to the main control module when at least one insulating material sample is punctured but not all the insulating material samples are punctured, and sending a second measurement signal to the main control module when all the insulating material samples are punctured, wherein before all the insulating material samples are punctured, the measurement module sends the first measurement signal to the main control module when one insulating material sample is punctured, and the measurement module sends the second measurement signal to the main control module until all the insulating material samples are punctured;

the recording module is connected with the measuring module and used for recording the breakdown time of each insulating material sample according to the starting instruction, wherein the recording module starts timing when receiving the starting instruction and records time once when one insulating material sample is broken down, so that the recording module can record time for many times until all the insulating material samples are broken down, thereby forming a plurality of breakdown times;

the main control module is also used for controlling the voltage rise time of each path of high-frequency high-voltage pulse to be kept unchanged according to the first measurement signal and controlling the power supply assembly to be closed according to the second measurement signal, wherein insulation material samples are gradually punctured along with the increase of the pressurization time, and before all the insulation material samples are punctured, the external load of the power supply assembly is changed when one insulation material sample is punctured, so that the voltage rise time of the high-frequency high-voltage pulse generated by the power supply assembly is changed, and the main control module controls the power supply assembly to keep the voltage rise time of each path of high-frequency high-voltage pulse generated by the power supply assembly unchanged, so that the stable and efficient performance of the test process can be ensured;

when all the insulating material samples are punctured, the test is finished, so that the power supply assembly is controlled to be closed by the main control module, and the whole test process is finished;

in order to ensure the safety of the test, in this embodiment, the multi-path synchronous testing device further includes a protection module, the protection module is connected with the main control module, the protection module is used for monitoring the leakage current or the short circuit phenomenon during the measurement process, when the leakage current exceeds a set threshold value or a short circuit phenomenon occurs, an alarm signal is sent to the main control module, the main control module is also used for controlling the power supply assembly to be closed according to the alarm signal, after the power supply assembly is closed, the multi-path synchronous testing device stops working, thereby ensuring the safety of the test, further, the multi-path synchronous testing device also comprises an alarm device which is connected with the protection module, the protection module is also used for starting the alarm device to alarm when the leakage current exceeds a set threshold value or a short circuit phenomenon occurs, the testing personnel can be informed to carry out treatment in time through an alarm device, such as a loudspeaker, a buzzer or an indicator light;

in this embodiment, the interaction module is further configured to receive an interrupt instruction input by a user during a measurement process, and send the interrupt instruction to the main control module, and the main control module is further configured to control the power supply component to be turned off according to the interrupt instruction, so that the multi-path synchronization testing apparatus can be manually turned off through the interrupt instruction, thereby increasing operability of the multi-path synchronization testing apparatus;

in order to visualize the test progress and the test result, in this embodiment, the interaction module may display the breakdown state of each sample of the insulating material and/or the breakdown time of each sample of the insulating material on the interaction interface, and specifically, the measurement module is further configured to send the breakdown state of each sample of the insulating material to the interaction module; the interaction module is also used for displaying the breakdown state of each insulating material sample, and the recording module is also used for sending the breakdown time of each insulating material sample to the interaction module; the interaction module is also used for displaying the breakdown time of each insulating material sample;

the insulation board 5 is fixed in the inner cavity of the placement groove 4 through a fixing component, the fixing component comprises a clamping board 6 arranged on two sides of the inner cavity of the placement groove 4 and a channel 7 arranged on two sides of the placement groove 4, the inner side of the clamping board 6 is attached to the surface of the insulation board 5, the inner cavity of the channel 7 is connected with a sliding block 8 in a sliding manner, sliding rods 18 are fixedly arranged on the front side and the rear side of the inner cavity of the channel 7, sliding grooves matched with the sliding rods 18 are formed in the front side and the rear side of the sliding block 8, the inner wall of each sliding groove is connected with the surface of the corresponding sliding rod 18 in a sliding manner, a pulling board 9 is fixedly arranged at the top of the sliding block 8, a connecting rod 10 is fixedly arranged on one side of the sliding block 8, one end, far away from the sliding block 8, of the connecting rod 10 sequentially penetrates through the channel 7 and the placement groove 4 and is contacted with the outer part of the clamping board 6, a return spring 17 is fixedly arranged at one end, far away from the sliding block 8, and the inner wall of the return spring 17 is fixedly arranged on the inner wall of the channel 7, the top of the inner side of the clamping plate 6 is provided with a bevel cut, and the surface of the insulating plate 5 is in sliding connection with the surface of the bevel cut;

through the arrangement of the fixing component, the insulation board 5 to be tested can be fixed inside the placing groove 4, when a user needs to fix the insulation board 5, the insulation board 5 can be pressed downwards into the placing groove 4, at the moment, two sides of the insulation board 5 are in sliding connection with the inner sides of the clamping boards 6, through the arrangement of the inclined notches on the surfaces of the clamping boards 6, the insulation board 5 can be guided to smoothly move downwards between the two clamping boards 6, the connecting rod 10 can be pushed outwards in the process that the insulation board 5 reaches the bottom of the inner cavity of the placing groove 4, the sliding block 8 is driven to move by the movement of the connecting rod 10, the reset spring 17 can be compressed by the movement of the sliding block 8, after the insulation board 5 reaches the bottom of the inner cavity of the placing groove 4, the reaction force generated by the contraction of the reset spring 17 can push the sliding block 8 to reset, the movement of the sliding block 8 can drive the clamping boards 6 to move inwards through the connecting rod 10, the insulating plate 5 is clamped and fixed in the inner cavity of the placing groove 4, the sliding rod 18 and the sliding groove are matched for use, so that the moving stability of the sliding block 8 can be improved, and the sliding block 8 can be pulled to move through the arrangement of the pull plate 9;

a jacking assembly is fixedly arranged in the fixed seat 3 and below the placing groove 4, the jacking assembly comprises an electric telescopic rod 11 embedded in the fixed seat 3, the telescopic end of the electric telescopic rod 11 penetrates through the placing groove 4 and extends to an inner cavity of the placing groove 4, a jacking plate 12 is fixedly arranged in the inner cavity, and the surface of the jacking plate 12 is in contact with the bottom of the insulating plate 5;

through the arrangement of the jacking assembly, after the test is finished, a user can pull the pulling plates 9 to two sides to drive the clamping plates 6 to be separated from the insulating plates 5, at the moment, the user opens the electric telescopic rod 11 through the external controller, the telescopic end of the electric telescopic rod 11 drives the jacking plates 12 to push the insulating plates 5 upwards to move, and the insulating plates are moved to the outside of the placing groove 4 so as to be convenient for the worker to take the insulating plates;

the inside of fixing base 3 is equipped with power supply module, power supply module is including locating the inside power cord 13 of fixing base 3, power cord 13 equidistance electric connection has connecting wire 14, connecting wire 14 keeps away from the one end electric connection of power cord 13 has electrode slice 15, the surface of electrode slice 15 and the bottom contact of insulation board 5, the outside fixed mounting that fixing base 3 and test box 2 and extend to test box 2 is run through in proper order to the one end of power cord 13 has power plug 16, power plug 16 inlays the surface of locating test box 2, setting through power supply module, power plug 16 can external test power, and carry the power respectively to electrode slice 15 department through power cord 13 and connecting wire 14, carry out corona resistance capability test to insulation board 5.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a synchronous testing arrangement of corona resistance of new energy vehicle motor, includes base (1), the top fixed mounting of base (1) has test box (2), it has test system, its characterized in that to carry in test box (2): a fixed seat (3) is fixedly installed in an inner cavity of the test box (2), placing grooves (4) are formed in the surface of the fixed seat (3) at equal intervals, an insulating plate (5) is arranged in the inner cavity of the placing groove (4), the insulating plate (5) is fixed in the inner cavity of the placing groove (4) through a fixing assembly, a jacking assembly is fixedly installed inside the fixed seat (3) and below the placing groove (4), and a power supply assembly is arranged inside the fixed seat (3);

fixed subassembly is including cardboard (6) of locating standing groove (4) inner chamber both sides and offer channel (7) in standing groove (4) both sides, the inboard of cardboard (6) and the surface laminating of insulation board (5), the inner chamber sliding connection of channel (7) has slider (8), the top fixed mounting of slider (8) has arm-tie (9), one side fixed mounting of slider (8) has connecting rod (10), the one end that slider (8) were kept away from in connecting rod (10) run through channel (7) and standing groove (4) in proper order and with the external contact of cardboard (6), the scarf has been seted up at the top of cardboard (6) inboard, and the surface of insulation board (5) with the surface sliding connection of scarf.

2. The device for synchronously testing the corona resistance of the motor of the new energy vehicle as claimed in claim 1, is characterized in that: the jacking assembly comprises an electric telescopic rod (11) embedded in the fixing base (3), a jacking plate (12) is fixedly mounted at an inner cavity of the electric telescopic rod (11) in a penetrating mode, the inner cavity of the electric telescopic rod extends to the placing groove (4) and extends to the placing groove (4), and the surface of the jacking plate (12) is in contact with the bottom of the insulating plate (5).

3. The device for synchronously testing the corona resistance of the motor of the new energy vehicle as claimed in claim 1, is characterized in that: the power supply module is including locating inside power cord (13) of fixing base (3), power cord (13) equidistance electric connection has connecting wire (14), the one end electric connection that power cord (13) were kept away from in connecting wire (14) has electrode slice (15), the surface of electrode slice (15) and the bottom contact of insulation board (5), the one end of power cord (13) runs through fixing base (3) and test box (2) in proper order and extends to the outside fixed mounting of test box (2) has power plug (16), power plug (16) inlays and locates the surface of test box (2).

4. The device for synchronously testing the corona resistance of the motor of the new energy vehicle as claimed in claim 1, is characterized in that: one end fixed mounting that connecting rod (10) were kept away from in slider (8) has reset spring (17), the inner wall fixed mounting of the one end of slider (8) and channel (7) is kept away from in reset spring (17).

5. The device for synchronously testing the corona resistance of the motor of the new energy vehicle as claimed in claim 1, is characterized in that: the slide bar (18) is fixedly mounted on the front side and the rear side of the inner cavity of the channel (7), sliding grooves matched with the slide bars (18) are formed in the front side and the rear side of the sliding blocks (8), and the inner walls of the sliding grooves are connected with the surfaces of the slide bars (18) in a sliding mode.

6. The device for synchronously testing the corona resistance of the motor of the new energy vehicle as claimed in claim 1, is characterized in that: the top of test box (2) articulates there is case lid (19), the fixed surface of case lid (19) installs the handle, the surface of case lid (19) just is located the back of handle and inlays and be equipped with observation window (20).

7. The device for synchronously testing the corona resistance of the motor of the new energy vehicle as claimed in claim 6, is characterized in that: case lid (19) are in the same place through locking Assembly and test box (2) fixed connection, locking Assembly includes buckle (21) and cassette (22), buckle (21) are corresponding the setting with cassette (22), buckle (21) fixed mounting is in the front of case lid (19), cassette (22) fixed mounting is in the front of test box (2), draw-in groove (23) have been seted up on the surface of buckle (21), the inner wall of draw-in groove (23) and the surperficial joint of cassette (22).

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