Frequency converter rapid test platform

Abstract

The invention relates to the technical field of frequency converter testing, and discloses a frequency converter rapid testing platform which comprises an operation platform, and a detector is installed at the top end of the operation platform. The two clamping pieces are symmetrically arranged on the two sides of the top end of the working platform, each clamping piece comprises a first pedal, the two clamping pieces can be synchronously driven by treading the first pedal downwards, a frequency converter is rapidly positioned and clamped, the testing piece is installed on the top of the working platform, each clamping piece comprises a second pedal, and the testing piece can be driven by treading the second pedal downwards to move and slide. And the frequency converter which is clamped and positioned can be quickly inserted, and test data can be transmitted to a detector for display. Through cooperative operation of double pedals, the testing efficiency can be remarkably improved, a single-side pedal is treaded down, two symmetrical clamping pieces are synchronously driven, rapid positioning and clamping of a frequency converter are achieved, the other pedal is treaded down to drive a testing piece to slide, insertion and data transmission are automatically completed, the two hands can be effectively liberated, the manual alignment time is shortened, and the testing efficiency is improved. The method is suitable for production line batch test scenes.

Description

Technical Field

[0001] This invention relates to the field of frequency converter testing technology, and in particular to a rapid testing platform for frequency converters. Background Technology

[0002] A frequency converter is a power control device that uses frequency conversion technology and microelectronics to control an AC motor by changing the frequency of the motor's power supply. During the production process or after maintenance, the performance of a frequency converter must be tested to ensure that it can be used normally after leaving the factory. Therefore, testing equipment is used for frequency converter performance testing.

[0003] Testing equipment typically uses a programmable power supply to change the input voltage of the frequency converter, thereby testing the operating status of the frequency converter under different voltage modes. Currently, when testing the performance of the frequency converter, it is necessary to manually insert a power plug into the frequency converter to turn it on. This connection between the power plug and the power interface of the frequency converter requires alignment and is easily affected by the work experience of the tester, ultimately affecting the efficiency of the frequency converter test.

[0004] Therefore, in order to improve the testing efficiency of frequency converters, a rapid testing platform for frequency converters is proposed to solve the above-mentioned problems. Summary of the Invention

[0005] To address the technical problems mentioned in the background section, this invention provides a rapid testing platform for frequency converters.

[0006] This invention is achieved using the following technical solution: a rapid testing platform for frequency converters, comprising:

[0007] The work platform is equipped with a detection instrument at its top.

[0008] The clamping components are two in number and symmetrically arranged on both sides of the top of the work platform. One of them is a pedal. By stepping on the pedal, the two clamping components can be driven simultaneously to quickly position and clamp the inverter.

[0009] The test piece is installed on the top of the work platform, including pedal two. By stepping on pedal two, the test piece can be moved and slid, and the frequency converter that is clamped and positioned can be quickly plugged in, and the test data is transmitted to the tester for display.

[0010] As a further improvement to the above solution, the clamping component includes placement slots symmetrically opened on both sides of the top of the work platform. The work platform is fixedly connected to a positioning frame plate below the two placement slots. A support plate is vertically slidably connected inside the placement slot. A vertical rod is fixedly connected to the bottom of the two support plates. A connecting plate is fixedly connected to the bottom of the two vertical rods. One of the vertical rods is fixedly connected to the outer side of the pedal.

[0011] As a further improvement to the above scheme, horizontal slots are symmetrically opened on both sides of the two placement slots. Horizontal sliders are horizontally slidably connected in the two horizontal slots. A guide groove is opened in the middle of the two horizontal sliders. The guide groove is composed of an inclined section from top to bottom and a vertical section. The inclined section gradually slopes from bottom to top towards the middle of the placement slot. Clamping plates are fixedly connected to the inner side of the two horizontal sliders. A side plate is fixedly connected to one side of the support plate. The side plate and the two clamping plates form a placement area with one side open, and the open direction faces the test piece.

[0012] As a further improvement to the above scheme, a side rod is fixedly connected to the outer side of the side plate, and a disc is fixedly connected to the bottom of the side rod. The disc is fixedly connected to the outer wall of the vertical rod. A spring is connected between the disc and the working platform. The spring is set on the outer wall of the vertical rod. A crossbar is fixedly connected to the side rod. Sliding rods are symmetrically fixedly connected to both sides of the crossbar. The two sliding rods are slidably connected to the guide grooves on both sides. When the pedal is stepped down, the support plate and the side plate drive the inverter placed there to descend synchronously. When descending, the crossbar drives the guide groove to push the two clamping plates to clamp and position the inverter, providing insertion conditions for the test piece operation.

[0013] As a further improvement to the above scheme, the test piece also includes a slid opening in the middle of the work platform. The slid opening is parallel to the length extension direction of the clamping plate. A sliding plate is slidably connected to the slid opening. A triangular plate is fixedly connected to the sliding plate below the work platform. The longitudinal section of the triangular plate is a right triangle, and one side of the hypotenuse extends towards the middle of the work platform. An inclined groove is opened along the direction parallel to the hypotenuse of the triangular plate. A round sliding rod is slidably connected to the inclined groove. A vertical plate is fixedly connected to one side of the round sliding rod. A base plate is horizontally fixedly connected to the outer wall of the vertical plate. An inner rod is fixedly connected to the top of the base plate. An outer cylinder is slidably connected to the inner rod. The outer cylinder is fixedly connected to the bottom end of the work platform. A second spring is connected to the bottom end of the base plate and the bottom end of the work platform. A bent folding rod is fixedly connected to the other end of the vertical plate. The outer end of the folding rod is fixedly connected to a second pedal.

[0014] As a further improvement to the above scheme, both pedal one and pedal two are parallel to the ground.

[0015] As a further improvement to the above solution, the slide plate is symmetrically provided with plug-in connectors on both sides, and the plug-in connectors are respectively positioned at the center of the two placement slots.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] (I) This invention can significantly improve testing efficiency through dual-foot pedal coordinated operation. Stepping on one pedal simultaneously drives two symmetrical clamping parts to achieve rapid positioning and clamping of the frequency converter. Stepping on the other pedal drives the test piece to slide, automatically completing the insertion and data transmission. This can effectively free up hands, reduce manual alignment time, and is suitable for batch testing scenarios on production lines.

[0018] (II) This invention achieves precision and reliability through the linkage of clamping positioning and insertion actions. With the linkage design of the clamping mechanism, by stepping on the first pedal, the vertical bar descends and drives the horizontal bar to move down. The sliding bars on both sides of the horizontal bar slide along the inclined guide groove, pushing the horizontal slider to move towards the middle, driving the clamping plate to clamp the frequency converter. A single stepping simultaneously completes the three actions of placement, descent, and clamping, avoiding deviations caused by manual adjustment.

[0019] (III) The present invention ensures continuous operation through an automatic reset mechanism. The clamping component is a set of springs installed at the vertical rod and provides a rebound force. The test piece is connected to the bottom plate and the bottom of the platform through a second spring. After insertion, it automatically rebounds and resets without manual reset, supporting high-frequency continuous testing. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a rapid testing platform for frequency converters according to the present invention;

[0021] Figure 2 This is a schematic diagram of the structure at the bottom of the platform of the present invention;

[0022] Figure 3 For the present invention Figure 1 A top-view structural diagram;

[0023] Figure 4 This is a cross-sectional structural diagram of the clamping member of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the clamping component and the test piece of the present invention;

[0025] Figure 6 This is a schematic diagram of the connection state structure of the test piece of the present invention.

[0026] Explanation of key symbols:

[0027] 1. Working platform; 2. Detector; 3. Placement slot; 4. Support plate; 5. Positioning frame plate; 6. Vertical rod; 7. Disc; 8. Spring 1; 9. Side rod; 10. Side plate; 11. Horizontal rod; 12. Sliding rod; 13. Horizontal slot; 14. Horizontal slider; 15. Guide slot; 16. Clamping plate; 17. Connecting plate; 18. Pedal 1; 19. Slide slot; 20. Slide plate; 21. Triangular plate; 22. Inclined slot; 23. Round sliding rod; 24. Vertical plate; 25. Base plate; 26. Inner rod; 27. Outer cylinder; 28. Spring 2; 29. ​​Folding rod; 30. Pedal 2. Detailed Implementation

[0028] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0029] Example 1: Please refer to Figures 1-4 This embodiment of a rapid testing platform for frequency converters includes:

[0030] Work platform 1, with a detector 2 installed on top of work platform 1;

[0031] The clamping components are two in number and symmetrically arranged on both sides of the top of the work platform 1. They include a pedal 18. By stepping on the pedal 18, the two clamping components can be driven synchronously to quickly position and clamp the frequency converter.

[0032] The test piece is installed on the top of the work platform 1, including pedal 2 30. By stepping on pedal 2 30, the test piece can be driven to move and slide, and the frequency converter clamped and positioned can be quickly plugged in, and the test data can be transmitted to the detector 2 for display.

[0033] The clamping component includes placement slots 3 symmetrically opened on both sides of the top of the work platform 1. Positioning frame plates 5 are fixedly connected to the work platform 1 below the two placement slots 3. Support plates 4 are vertically slidably connected inside the placement slots 3. Vertical rods 6 are fixedly connected to the bottom of the two support plates 4. Connecting plates 17 are fixedly connected to the bottom of the two vertical rods 6. The outer side of one of the vertical rods 6 is fixedly connected to the pedal 18.

[0034] Specifically, when the first pedal 18 is pressed down to the ground, the support plate 4 just descends to the same level as the working platform 1. When the second pedal 30 is pressed down to the ground, the test piece will slide to the inverter and be inserted.

[0035] Two placement slots 3 are symmetrically provided with horizontal slots 13 on both sides. Horizontal sliders 14 are horizontally slidably connected in the two horizontal slots 13. A guide groove 15 is provided in the middle of the two horizontal sliders 14. The guide groove 15 is composed of an inclined section from top to bottom and a vertical section. The inclined section gradually slopes from bottom to top towards the middle of the placement slot 3. Clamping plates 16 are fixedly connected to the inner side of the two horizontal sliders 14. A side plate 10 is fixedly connected to one side of the support plate 4. The side plate 10 and the two clamping plates 16 form a placement area with one side open, and the open direction faces the test piece.

[0036] Specifically, the inner side of the clamp 16 is provided with elastic rubber to reduce damage to the frequency converter.

[0037] A side rod 9 is fixedly connected to the outer side of the side plate 10. A disc 7 is fixedly connected to the bottom of the side rod 9. The disc 7 is fixedly connected to the outer wall of the vertical rod 6. A spring 8 is connected between the disc 7 and the working platform 1. The spring 8 is sleeved on the outer wall of the vertical rod 6. A horizontal rod 11 is fixedly connected to the side rod 9. Slide rods 12 are symmetrically fixedly connected to both sides of the horizontal rod 11. The two slide rods 12 are slidably connected to the guide grooves 15 on both sides. When the pedal 18 is stepped down, the support plate 4 and the side plate 10 drive the inverter placed there to descend synchronously. When descending, the horizontal rod 11 drives the guide grooves 15 to push the two clamping plates 16 to clamp and position the inverter, providing insertion conditions for the test piece operation.

[0038] The implementation principle of a rapid testing platform for frequency converters in this application embodiment is as follows:

[0039] In the initial state, the pedal 18 and the two support plates 4 will be vertically upward and return to their positions under the elasticity of the spring 8. At this time, the support plate 4 is located directly above the placement slot 3 and simultaneously drives the side plate 10 to rise. After the crossbar 11 rises in sync, the slide bar 12 will push the two guide slots 15 to slide outward.

[0040] At this point, the inverter can be placed in the placement area, and the direction of the plug interface should be controlled to face the test piece. Then, step on pedal 18 with one foot, forcing pedal 18 to drive the two vertical rods 6 to move vertically downwards synchronously. When the slide rod 12 moves downwards, it will slide along the inclined section to the vertical section, and simultaneously push the two clamping plates 16 to converge towards the support plate 4, so that the inverter is centered and positioned. Finally, after the bottom of pedal 18 touches the ground, the entire support plate 4 is on the same horizontal plane as the working platform 1, and the inverter is positioned under the clamping of the two clamping plates 16, waiting for the tester to perform the plug-in test, and the result will be displayed on the detector 2.

[0041] After the test is completed, the two trays 4 can be returned to their initial state by releasing the pedal 18 under the elasticity of the two springs 8, and the inverter that has completed the test can be removed, thus preventing new inverters from being tested.

[0042] Example 2: Combination Figures 1-6 This embodiment is an improvement on embodiment 1, further described in the following aspects:

[0043] The test piece also includes a slid opening 19 in the middle of the work platform 1. The slid opening 19 is parallel to the length extension direction of the clamping plate 16. A sliding plate 20 is slidably connected to the slid opening 19. A triangular plate 21 is fixedly connected to the sliding plate 20 below the work platform 1. The longitudinal section of the triangular plate 21 is a right triangle, and one side of the hypotenuse extends towards the middle of the work platform 1. A groove 22 is opened along the direction parallel to the hypotenuse of the triangular plate 21. A circular sliding rod 23 is slidably connected to the groove 22. A vertical plate 24 is fixedly connected to one side of the circular sliding rod 23. A base plate 25 is horizontally fixedly connected to the outer wall of the vertical plate 24. An inner rod 26 is fixedly connected to the top of the base plate 25. An outer cylinder 27 is slidably connected to the outer side of the inner rod 26. The outer cylinder 27 is fixedly connected to the bottom of the work platform 1. A second spring 28 is connected to the bottom of the base plate 25 and the bottom of the work platform 1. A bent folding rod 29 is fixedly connected to the other end of the vertical plate 24. The outer end of the folding rod 29 is fixedly connected to the second pedal 30.

[0044] Specifically, the slid opening 19 extends along the axis of symmetry of the two placement slots 3 and is parallel to the length direction of the clamping plate 16.

[0045] Both pedal 18 and pedal 230 are parallel to the ground.

[0046] The slide plate 20 is symmetrically provided with plug-in connectors on both sides, and the plug-in connectors are respectively positioned at the middle of the two placement slots 3.

[0047] Specifically, the plug-in connector is electrically connected to the detector 2 via a data cable, which is used to transmit the current, voltage and frequency parameters of the frequency converter to the detector 2 in real time for analysis and display.

[0048] The implementation principle of a rapid testing platform for frequency converters in this application embodiment is as follows:

[0049] After the pedal 18 is pressed down and the inverter is clamped, the other foot can press the pedal 20 to move the vertical plate 24 down and slide it along the inclined groove 22 by relying on the round slide rod 23. This forces the entire slide plate 20 to slide along the groove opening 19 to the placement groove 3, and realizes the plug-in connector to be plugged into the inverter. Then, the information is transmitted to the tester 2 through electrical connection. According to the test results, qualified inverters and unqualified inverters are placed separately.

[0050] After the test is completed and the pedal 20 is released, the spring 28 elastically contracts and pushes the vertical plate 24 upward. The inclined groove 22 and the slide bar 23 slide downward, so that the slide plate 20 returns to its position and waits for the next test.

[0051] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A rapid testing platform for frequency converters, characterized in that, include: A work platform (1) is provided, and a detector (2) is installed on the top of the work platform (1); The clamping components are two in number and symmetrically arranged on both sides of the top of the work platform (1). The clamping components include a pedal (18). By stepping on the pedal (18), the two clamping components can be driven synchronously and the inverter can be quickly positioned and clamped. The test piece is installed on the top of the work platform (1) and includes a second pedal (30). By stepping on the second pedal (30), the test piece can be driven to slide and quickly plug in the frequency converter that is clamped and positioned, and the test data is transmitted to the detector (2) for display.

2. The inverter rapid testing platform as described in claim 1, characterized in that, The clamping component includes placement slots (3) symmetrically opened on both sides of the top of the work platform (1). The work platform (1) is fixedly connected to a positioning frame plate (5) below the two placement slots (3). A support plate (4) is vertically slidably connected inside the placement slot (3). A vertical rod (6) is fixedly connected to the bottom of the two support plates (4). A connecting plate (17) is fixedly connected to the bottom of the two vertical rods (6). The outer side of one of the vertical rods (6) is fixedly connected to the pedal (18).

3. The inverter rapid testing platform as described in claim 2, characterized in that, Two placement slots (3) are symmetrically provided with horizontal slots (13) on both sides, and horizontal sliders (14) are horizontally slidably connected in the two horizontal slots (13), and guide slots (15) are provided in the middle of the two horizontal sliders (14).

4. The inverter rapid testing platform as described in claim 3, characterized in that, The guide groove (15) is composed of an inclined section and a vertical section from top to bottom. The inclined section gradually slopes from bottom to top towards the middle of the placement slot (3). The inner sides of the two horizontal sliders (14) are fixedly connected with clamps (16). The side plate (10) is fixedly connected to one side of the support plate (4). The side plate (10) and the two clamps (16) form a placement area with one side open, and the open direction faces the test piece.

5. The inverter rapid testing platform as described in claim 4, characterized in that, A side rod (9) is fixedly connected to the outside of the side plate (10). A disc (7) is fixedly connected to the bottom of the side rod (9). The disc (7) is fixedly connected to the outer wall of the vertical rod (6). A spring (8) is connected between the disc (7) and the working platform (1). The spring (8) is sleeved on the outer wall of the vertical rod (6). A crossbar (11) is fixedly connected to the side rod (9).

6. The inverter rapid testing platform as described in claim 5, characterized in that, The crossbar (11) is symmetrically fixed with sliding rods (12) on both sides. The two sliding rods (12) are slidably connected to the guide grooves (15) on both sides respectively. When the pedal (18) is pressed down, the support plate (4) and the side plate (10) drive the inverter placed there to descend synchronously. When descending, the crossbar (11) drives the guide groove (15) to push the two clamping plates (16) to clamp and position the inverter, providing insertion conditions for the test piece operation.

7. The inverter rapid testing platform as described in claim 6, characterized in that, The test piece also includes a slid opening (19) in the middle of the working platform (1). The slid opening (19) is parallel to the length extension direction of the clamp (16). A sliding plate (20) is slidably connected to the slid opening (19). A triangular plate (21) is fixedly connected to the sliding plate (20) below the working platform (1). The longitudinal section of the triangular plate (21) is a right triangle, and one side of the hypotenuse extends toward the middle of the working platform (1). A sloping groove (22) is opened on the triangular plate (21) along the direction parallel to the hypotenuse.

8. The inverter rapid testing platform as described in claim 7, characterized in that, A circular slide rod (23) is slidably connected to the inclined groove (22). A vertical plate (24) is fixedly connected to one side of the circular slide rod (23). A bottom plate (25) is horizontally fixedly connected to the outer wall of the vertical plate (24). An inner rod (26) is fixedly connected to the top of the bottom plate (25). An outer cylinder (27) is slidably connected to the outer side of the inner rod (26). The outer cylinder (27) is fixedly connected to the bottom end of the working platform (1). A spring (28) is connected to the bottom end of the bottom plate (25) and the working platform (1). A bent folding rod (29) is fixedly connected to the other end of the vertical plate (24). The outer end of the folding rod (29) is fixedly connected to the second pedal (30).

9. The inverter rapid testing platform as described in claim 1, characterized in that, Both pedal one (18) and pedal two (30) are parallel to the ground.

10. The inverter rapid testing platform as described in claim 7, characterized in that, The slide plate (20) is symmetrically provided with plug-in connectors on both sides, and the plug-in connectors are respectively positioned at the middle of the two placement slots (3).

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