Frequency converter testing device

Abstract

The present invention relates to the technical field of frequency converters, and in particular to a frequency converter testing device. The frequency converter testing device comprises: a testing assembly, which comprises a box body, an accommodating cavity arranged in the box body, and a back plate disposed inside the accommodating cavity; a locking assembly, which comprises a sliding block disposed on the outer wall of the back plate and a movable frame disposed inside the box body; and an adjustment assembly, which comprises fixing plates disposed inside the accommodating cavity and a plurality of engagement blocks disposed on the outer wall of each fixing plate. In the present invention, by means of the provision of the box body, a testing box, a main control board, a 24V stabilized voltage supply and an automatic take-up device are assembled within the box body to form an integrated device, thereby facilitating long-term preservation and storage and improving the stability of the device during use; a retractable seat backrest is additionally provided, when the back plate extends by means of pushing a handle, a cover plate can be locked by means of a pin shaft, and the height of the back plate can be adjusted on the basis of requirements; and when testing is required, the handle is pushed reversely, such that the back plate can retract into the accommodating cavity, and the cover plate is unlocked, thereby facilitating the opening of a toolbox for testing.

Description

A frequency converter testing device TECHNICAL FIELD

[0001] The present application relates to the technical field of frequency converter, in particular to a frequency converter testing device. BACKGROUND

[0002] In the field of modern industrial automation and intelligent manufacturing, frequency converters, as key power control equipment, directly affect the operation efficiency and safety of the entire system. Frequency converters achieve precise control of motor speed by adjusting the operating frequency of the motor, and are widely used in industrial production, building automation, transportation and other fields.

[0003] However, the existing frequency converter testing device is relatively simple, the test box is easy to be damaged and parts fall off, the positive and negative poles are not easy to distinguish, the maintenance personnel's work affects the maintenance effect, the long-term coiling of cables and terminals can cause poor contact and other safety hazards, and in a long-time working environment, the operator often needs to stand or bend to operate, lacking a comfortable working environment, which can easily cause the operator to be tired and affect the work efficiency. SUMMARY

[0004] In view of the above-mentioned prior art problems, the present application is proposed.

[0005] To solve the above technical problems, the present application provides the following technical scheme: a frequency converter testing device, comprising a detection assembly, a box, a containing cavity arranged inside the box, a back plate arranged inside the containing cavity, a movable cavity arranged inside the back plate, and a cover plate arranged outside the box; a locking assembly, comprising a sliding block arranged on the outer wall of the back plate, a moving frame arranged inside the box, a first elastic member arranged on the outer wall of the moving frame, and a bolt shaft arranged inside the first elastic member; an adjusting assembly, comprising a fixed plate arranged inside the containing cavity, a plurality of clamping blocks arranged on the outer wall of the fixed plate, a fixed frame arranged on the inner wall of the back plate, a moving plate movably arranged above the fixed frame, and a special-shaped block arranged outside the moving plate.

[0006] As a preferred scheme of the frequency converter testing device of the present application, wherein: the inside of the box is provided with a containing cavity, a partition plate is arranged between the containing cavity and the containing cavity, and a guide hole is formed below the back plate.

[0007] As a preferred scheme of the frequency converter testing device of the present application, wherein: a notch is formed in the inner wall of the box, a positioning hole is formed in the side wall of the notch, a vertical plate is arranged below the cover plate, a through hole is formed in the outer wall of the vertical plate, and the bolt shaft is movably matched with the through hole and the positioning hole, respectively.

[0008] As a preferred scheme of the frequency converter testing device, the outer wall of the cover plate is provided with a movable groove, a pull ring is movably arranged in the movable groove, the outer wall of the baffle plate is provided with a sliding groove, and the sliding block is movably matched with the sliding groove.

[0009] As a preferred scheme of the frequency converter testing device, the outer wall of the baffle plate is provided with a stand, a gear is movably arranged on the outer wall of the stand, and a connecting rod is movably arranged between the gear and the sliding block.

[0010] As a preferred scheme of the frequency converter testing device, the outer wall of the gear is provided with a rack, the outer wall of the rack is provided with a groove, the outer wall of the baffle plate is provided with a convex plate, and the groove is movably matched with the convex plate.

[0011] As a preferred scheme of the frequency converter testing device, the inner part of the fixed frame is provided with a disc, the upper part of the disc is provided with a stand, one end of the stand is provided with a handle, the outer wall of the back plate is provided with an arc-shaped groove, and the stand is movably matched with the arc-shaped groove.

[0012] As a preferred scheme of the frequency converter testing device, the outer wall of the moving plate is provided with a first moving groove and a second moving groove, respectively, and the first moving groove and the second moving groove are movably matched with the fixed frame.

[0013] As a preferred scheme of the frequency converter testing device, the inner part of the moving plate at two ends is provided with a cavity, the inner wall of the cavity is provided with a stabilizing column, the outer wall of the stabilizing column is provided with a second elastic member, and the second elastic member is provided with a connecting column between the stabilizing column and the special-shaped block.

[0014] As a preferred scheme of the frequency converter testing device, the outer wall of the special-shaped block is provided with a first inclined surface and a second inclined surface, and the first inclined surface and the second inclined surface are movably matched with the clamping block.

[0015] The frequency converter testing device has the following beneficial effects: the box body is arranged to integrally assemble the test box, the main control board, the 24V voltage stabilizing power supply and the automatic take-up device to form an integrated device, so that the device is convenient for long-term storage and use and the stability of the device is improved, and the telescopic seat backrest is arranged, the plug pin shaft can lock the cover plate when the back plate is extended by pushing the handle, the height of the back plate can be adjusted according to requirements, the back plate is retracted into the accommodating cavity by reversely pushing the handle when detection is required, the cover plate is unlocked, and the tool box is convenient for opening and detection. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0017] Fig. 1 is a schematic diagram of the overall structure of the frequency converter testing device in the present application.

[0018] Fig. 2 is a schematic diagram of the overall structure of the frequency converter testing device in the present application when the back plate is contracted.

[0019] Fig. 3 is a schematic diagram of the internal structure of the box in the present application.

[0020] Fig. 4 is a schematic diagram of the connecting structure of the cover plate in the present application.

[0021] Fig. 5 is a schematic diagram of the overall structure of the locking assembly in the present application.

[0022] Fig. 6 is an enlarged view of the structure of "A" in Fig. 5, i.e. a schematic diagram of the connecting structure of the bolt shaft in the present application.

[0023] Fig. 7 is a schematic diagram of the overall structure of the adjusting assembly in the present application.

[0024] Fig. 8 is a schematic diagram of the connecting structure of the fixing plate in the present application.

[0025] Fig. 9 is an enlarged view of the structure of "B" in Fig. 7, i.e. a schematic diagram of the connecting structure of the handle in the present application.

[0026] Fig. 10 is an enlarged view of the structure of "C" in Fig. 7, i.e. a schematic diagram of the connecting structure of the fixing frame in the present application.

[0027] Fig. 11 is a schematic diagram of the connecting structure of the special-shaped block in the present application. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings.

[0029] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the concept of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0030] Secondly, the "one embodiment" or "embodiment" referred to herein means a specific feature, structure, or characteristic that can be included in at least one implementation of the present application. The "in one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is separate or alternative to other embodiments.

[0031] Embodiment 1, referring to FIGS. 1-4, is a first embodiment of the present application, which provides a frequency converter testing device, including a box body 101, reasonably designing 24V stabilized power supply Y, main control board K, test box S, and main cable take-up X, and integrating them into the box body 101 to form a stable multifunctional test box integrated device, thereby solving the problems of easy damage during long-term use and inconvenience during use.

[0032] Specifically, the original aging power cable and air switch are removed, and the original test box S, main control board K, and 24V stabilized power supply Y are retained.

[0033] Preferably, a 220VAC, 3*2.5 square automatic take-up X is connected to the 24V stabilized power supply Y as a device power cable for easy use, and a 24V stabilized power supply Y plug and alligator clip J type 24V bus incoming power are re-made to facilitate the differentiation of positive and negative poles and to avoid safety hazards such as poor contact.

[0034] Among them, the 24V stabilized power supply Y, the test box S, and the main control board K are arranged inside the accommodating cavity 101b, the alligator clip J is clamped on the outer wall of the test box S, and the main cable take-up X is arranged at the bottom of the box body 101 and connected to the 24V stabilized power supply Y.

[0035] In summary, by reasonably designing and integrating the 24V stabilized power supply Y, the main control board K, the test box S, and the main cable take-up X into a set of device, a frequency converter testing device that is convenient to use is formed, solving the problems of easy damage of the test box, inability to use after parts fall off, and safety hazards such as poor contact of the line due to long-term coiling and stretching of the cable and the terminal.

[0036] Embodiment 2, referring to FIGS. 1-6, is a second embodiment of the present application, which is based on the previous embodiment, except that by pushing the handle 302c and pulling the handle 302c, the back plate 102 is raised, the sliding block 201 is driven to slide in the sliding groove 101c-1, the gear 201a is cooperated with the rack 201c, the movable frame 202 drives the bolt shaft 203 to penetrate the through hole 103a-1 and insert into the positioning hole 101d-1, and the cover plate 103 is fixed, which is convenient for the operator to rest and relieve fatigue.

[0037] Specifically, the detection assembly 100 comprises a box body 101, a containing cavity 101a arranged in the box body 101, a back plate 102 arranged in the containing cavity 101a, a movable cavity 102a arranged in the back plate 102, and a cover plate 103 arranged outside the box body 101; the locking assembly 200 comprises a sliding block 201 arranged on the outer wall of the back plate 102, a moving frame 202 arranged in the box body 101, a first elastic member 202a arranged on the outer wall of the moving frame 202, and a bolt shaft 203 arranged in the first elastic member 202a; the adjusting assembly 300 comprises a fixed plate 301 arranged in the containing cavity 101a, a plurality of clamping blocks 301a arranged on the outer wall of the fixed plate 301, a fixed frame 302 arranged on the inner wall of the back plate 102, a moving plate 303 movably arranged above the fixed frame 302, and a special-shaped block 304 arranged outside the moving plate 303.

[0038] The box body 101 is square and is provided with four supporting columns Z at the bottom; the containing cavity 101a is convenient for accommodating the back plate 102 when the cover plate 103 is opened, preventing the view from being blocked and facilitating the detection of the staff; the sliding blocks 201 are symmetrically arranged in two and are fixedly connected with the back plate 102, and the sliding blocks 201 are driven to move when the back plate 102 moves; the first elastic member 202a is connected with the moving frame 202 at one end and is connected with the bolt shaft 203 at the other end, the moving frame 202 is L-shaped, and the moving frame 202a drives the bolt shaft 203 to move when the moving frame 202a moves; the first elastic member 202a is a compression spring, and when the bolt shaft 203 is clamped in cooperation with the positioning hole 101d-1, if the back plate 102 needs to continue to rise, the first elastic member 202 can be compressed to provide space for the rising of the back plate 102, avoiding the continuous movement of the bolt shaft 203 into the positioning hole 101d-1, so that the back plate 102 cannot continue to rise to the highest position; the fixed plates 301 are symmetrically arranged in two, the clamping blocks 301a are cuboid, a clamping groove 301a-1 is arranged between the clamping blocks 301a, and a plurality of gears are formed; the fixed frame 302 is a square frame, is fixedly connected with the back plate 102, and is arranged at the bottom of the containing cavity 101a; the moving plate 303 is arranged in the containing cavity 101a, is lapped on the inner wall bottom of the back plate 102, and is movably connected with the fixed frame 301; the special-shaped block 304 cooperates with the clamping block 301a and is used for adjusting the height of the back plate 102.

[0039] Preferably, the box body 101 is internally provided with a containing cavity 101b, a partition plate 101c is arranged between the containing cavity 101a and the containing cavity 101b, and a guide hole 102a-1 is arranged at the bottom of the back plate 102.

[0040] Preferably, a notch 101d is arranged on the inner wall of the box body 101, a positioning hole 101d-1 is arranged on the side wall of the notch 101d, a vertical plate 103a is arranged at the bottom of the cover plate 103, a through hole 103a-1 is arranged on the outer wall of the vertical plate 103a, and the bolt shaft 203 movably cooperates with the through hole 103a-1 and the positioning hole 101d-1.

[0041] Preferably, the outer wall of the cover plate 103 is provided with a movable slot 103b, the movable slot 103b is movably provided with a pull ring 103c, the outer wall of the partition plate 101c is provided with a sliding slot 101c-1, and the sliding block 201 movably cooperates with the sliding slot 101c-1.

[0042] Preferably, the outer wall of the cover plate 103 is provided with a movable slot 103b, the movable slot 103b is movably provided with a pull ring 103c, the outer wall of the partition plate 101c is provided with a sliding slot 101c-1, and the sliding block 201 movably cooperates with the sliding slot 101c-1.

[0043] Preferably, the outer wall of the cover plate 103 is provided with a movable slot 103b, the movable slot 103b is movably provided with a pull ring 103c, the outer wall of the partition plate 101c is provided with a sliding slot 101c-1, and the sliding block 201 movably cooperates with the sliding slot 101c-1.

[0044] Preferably, the outer wall of the cover plate 103 is provided with a movable slot 103b, the movable slot 103b is movably provided with a pull ring 103c, the outer wall of the partition plate 101c is provided with a sliding slot 101c-1, and the sliding block 201 movably cooperates with the sliding slot 101c-1.

[0045] Preferably, the outer wall of the cover plate 103 is provided with a movable slot 103b, the movable slot 103b is movably provided with a pull ring 103c, the outer wall of the partition plate 101c is provided with a sliding slot 101c-1, and the sliding block 201 movably cooperates with the sliding slot 101c-1.

[0046] Preferably, the outer wall of the cover plate 103 is provided with a movable slot 103b, the movable slot 103b is movably provided with a pull ring 103c, the outer wall of the partition plate 101c is provided with a sliding slot 101c-1, and the sliding block 201 movably cooperates with the sliding slot 101c-1. Preferably, the outer wall of the cover plate 103 is provided with a movable slot 103b, the movable slot 103b is movably provided with a pull ring 103c, the outer wall of the partition plate 101c is provided with a sliding slot 101c-1, and the sliding block 201 movably cooperates with the sliding slot 101c-1.

[0047] Preferably, the fixed frame 302 is internally provided with a disc 302a, the disc 302a is provided with a vertical rod 302b above, the vertical rod 302b is provided with a handle 302c at one end, the outer wall of the back plate 102 is provided with an arc-shaped slot 102b, and the vertical rod 302b is movably matched with the arc-shaped slot 102b.

[0048] Wherein, the vertical column 101c-2 supports the gear 201a, but does not affect the rotation of the gear 201a; the connecting rod 201b is movably connected with the sliding block 201 at one end and movably connected with the gear 201a at the other end; when the sliding block 201 slides upward in the sliding groove 101c-1, the gear 201a rotates to drive the rack 201c to move horizontally under the action of the connecting rod 201b, at this time, the two racks 201c move to the two sides of the box body 101 respectively; the rack 201c is an integral structure with the moving frame 202, and the movement of the rack 201c drives the bolt shaft 203 to pass through the through hole 103a-1 and enter the positioning hole 101d-1, thereby fixing the cover plate 103; when the sliding block 201 slides downward in the sliding groove 101c-1, the two gears 201a rotate under the action of the connecting rod 201b, thereby driving the rack 201c to move horizontally to the center of the box body 101c, and the moving frame 202 drives the bolt shaft 203 to disengage from the positioning hole 101d-1 and the through hole 103a-1, thereby releasing the locking of the cover plate 103; the handle 302c is arranged to facilitate the operation of the staff, and when the device needs to be moved, it can provide a gripping space for the staff; the vertical rod 302b is eccentrically connected with the disc 302a at one end and fixedly connected with the handle 302c at the other end; the disc 302a moves in the fixed frame 302, so that the first moving slot 303a and the second moving slot 303b slide on the outer wall of the fixed frame 302, thereby enabling the moving plate 303 to move horizontally.

[0049] In summary, when the back plate 102 is completely fallen into the containing cavity 101a, the first inclined surface 304a corresponds to the position of the clamping block 301a, when the detection is completed and the operator needs to rest, the handle 302c is slid in the arc-shaped slot 102b, so that the first moving slot 303a and the second moving slot 303b slide on the outer wall of the fixed frame 302, and the moving plate 303 slides to the other side of the fixed frame 302, at this time, the second inclined surface 304b corresponds to the position of the clamping block 301a, and the second inclined surface 304b is movably matched with the clamping block 301a by pulling the handle 302c upward, so that the back plate 102 rises, when the back plate 102 needs to be stored and lowered, the handle 302c is slid reversely, the moving plate 303 is retreated to the other side of the fixed frame 302, the first inclined surface 304a corresponds to the position of the clamping block 301a, and the back plate 102 is lowered.

[0050] Embodiment 4, referring to FIGS. 1-11, is a fourth embodiment of the present application, which is based on the previous embodiment, except that the first inclined surface 304a and the second inclined surface 304b are respectively in movable connection with the clamping block 301a, and the height of the back plate 102 can be adjusted according to the needs of the operator.

[0051] Specifically, the outer wall of the moving plate 303 is provided with a first moving groove 303a and a second moving groove 303b, and the first moving groove 303a and the second moving groove 303b are respectively in movable connection with the fixed frame 302.

[0052] Preferably, the two ends of the moving plate 303 are internally provided with cavities 303c, the inner wall of the cavity 303c is provided with a stabilizing column 303d, the outer wall of the stabilizing column 303d is sleeved with a second elastic member 303e, and the second elastic member 303e is provided with a connecting column 303e-1 between the stabilizing column 303d and the special-shaped block 304.

[0053] Preferably, the outer wall of the special-shaped block 304 is provided with a first inclined surface 304a and a second inclined surface 304b, and the first inclined surface 304a and the second inclined surface 304b are respectively in movable connection with the clamping block 301a.

[0054] When the handle 302c is pulled to slide in the arc-shaped groove 102b, the first moving groove 303a and the second moving groove 303b can slide on the outer wall of the fixed frame 302, so that the moving plate 303 moves, and the position of the special-shaped block 304 is adjusted. When the handle 302c is slid to the side away from the box body 101, the second inclined surface 304b corresponds to the position of the clamping block 301a, and the back plate 102 can be raised by pulling the handle 302c. When the handle 302c is slid to the side close to the box body 101, the first inclined surface 304a corresponds to the position of the clamping block 301a, and the handle 302c can be pushed downward, so that the back plate 102 is lowered. If it is necessary to fix the height of the back plate 102 during the lowering process, the handle 302c can be slid again to the side away from the box body 101, so that the second inclined surface 304b corresponds to the position of the clamping block 301a, the special-shaped block 304 is clamped into the corresponding clamping groove 301a-1, and the back plate 102 is fixed. The first inclined surface 304a or the second inclined surface 304b is in edge connection with the clamping block 301a, so that the second elastic member 303e is compressed, the special-shaped block 304 is withdrawn from the clamping groove 301a-1, and when the special-shaped block 304 moves to the next clamping groove 301a-1, the second elastic member 303e is released, so that the special-shaped block 304 falls into the clamping groove 301a-1. The second elastic member 303e is a compression spring. One end of the connecting column 303e-1 is fixedly connected with the special-shaped block 304, and the other end penetrates through the outer wall of the moving plate 303 into the cavity 303c and is connected with the second elastic member 303e.

[0055] In summary, by sliding the handle 302c away from the box body 101, at this time the second inclined surface 304b corresponds to the position of the clamping block 301a, further pulling the handle 302c, the back plate 102 does not need to rise to the highest position to fix the bolt shaft 203 in the positioning hole 101d-1, the special-shaped block 304 cooperates with the clamping block 301a, which can provide multiple gears for the height of the back plate 102, the first elastic member 202a is compressed when the back plate 102 continues to rise, which can make the bolt shaft 203 clamp the cover plate 103a more tightly, when the back plate 102 is completely lowered to the inside of the accommodating cavity 101a, the locking of the cover plate 103a is released, so that the staff can open the cover plate 103a and perform maintenance work on the inside.

[0056] Importantly, it should be noted that the constructions and arrangements of the present application shown in the various example embodiments are illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be altered or varied. Accordingly, all such modifications are intended to be included within the scope of the present application. The order or sequence of any process or method steps can be changed or re-sequenced without departing from the generality of the application. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the example embodiments without departing from the scope of the present application. Accordingly, the present application is not limited to particular embodiments described, but extends to various modifications that nevertheless fall within the scope of the appended claims.

[0057] Furthermore, in order to provide a concise description of exemplary embodiments, all features of an actual implementation can not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the application, or those unrelated to enabling the claimed application).

[0058] It is to be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts can be complex and time-consuming, but would be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure.

[0059] It should be noted that the above examples are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced, without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A frequency converter testing apparatus, characterized by: Including, The detection assembly (100) includes a box (101), a containing cavity (101a) arranged inside the box (101), a back plate (102) arranged inside the containing cavity (101a), a movable cavity (102a) arranged inside the back plate (102) and a cover plate (103) arranged outside the box (101); The locking assembly (200) includes a sliding block (201) arranged on the outer wall of the back plate (102), a moving frame (202) arranged inside the box (101), a first elastic member (202a) arranged on the outer wall of the moving frame (202), and a bolt shaft (203) arranged inside the first elastic member (202a); The adjusting assembly (300) includes a fixed plate (301) arranged inside the containing cavity (101a), a plurality of clamping blocks (301a) arranged on the outer wall of the fixed plate (301), a fixed frame (302) arranged on the inner wall of the back plate (102), a moving plate (303) movably arranged above the fixed frame (302), and a special-shaped block (304) arranged outside the moving plate (303).

2. The frequency converter testing apparatus of claim 1, wherein: The box (101) is provided with a containing cavity (101b) inside, and a partition plate (101c) is arranged between the containing cavity (101b) and the containing cavity (101a).

3. The frequency converter testing apparatus of claim 2, wherein: The inner wall of the box (101) is provided with a notch (101d), the side wall of the notch (101d) is provided with a positioning hole (101d-1), the lower portion of the cover plate (103) is provided with a vertical plate (103a), the outer wall of the vertical plate (103a) is provided with a through hole (103a-1), and the bolt shaft (203) is movably connected with the through hole (103a-1) and the positioning hole (101d-1).

4. The frequency converter testing apparatus of claim 3, wherein: The outer wall of the cover plate (103) is provided with a movable groove (103b), the movable groove (103b) is movably provided with a pull ring (103c), the outer wall of the partition plate (101c) is provided with a sliding groove (101c-1), and the sliding block (201) is movably connected with the sliding groove (101c-1).

5. The frequency converter testing apparatus of claim 4, wherein: The outer wall of the partition plate (101c) is provided with a vertical column (101c-2), the outer wall of the vertical column (101c-2) is movably provided with a gear (201a), and the gear (201a) and the sliding block (201) are movably connected with a connecting rod (201b).

6. The frequency converter testing apparatus of claim 5, wherein: The outer wall of the gear (201a) is engaged with a rack (201c), the outer wall of the rack (201c) is provided with a groove (201c-1), the outer wall of the partition plate (101c) is provided with a convex plate (101c-3), and the groove (201c-1) and the convex plate (101c-3) are movably connected.

7. The frequency converter testing apparatus of claim 6, wherein: The fixed frame (302) is internally provided with a disc (302a), the disc (302a) is provided with a vertical rod (302b) above, one end of the vertical rod (302b) is provided with a handle (302c), the outer wall of the back plate (102) is provided with an arc-shaped slot (102b), and the vertical rod (302b) is movably matched with the arc-shaped slot (102b).

8. The frequency converter testing apparatus of claim 7, wherein: The outer wall of the moving plate (303) is respectively provided with a first moving slot (303a) and a second moving slot (303b), and the first moving slot (303a) and the second moving slot (303b) are movably matched with the fixed frame (302).

9. The frequency converter testing apparatus of claim 8, wherein: The both ends of the moving plate (303) are internally provided with cavities (303c), the inner wall of the cavity (303c) is provided with a stabilizing column (303d), the outer wall of the stabilizing column (303d) is sleeved with a second elastic element (303e), and the second elastic element (303e) and the special-shaped block (304) are provided with a connecting column (303e-1) therebetween.

10. The frequency converter testing apparatus of claim 9, wherein: The outer wall of the special-shaped block (304) is provided with a first inclined surface (304a) and a second inclined surface (304b), and the first inclined surface (304a) and the second inclined surface (304b) are movably matched with the clamping block (301a).

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