A frequency converter test fixture

Abstract

A frequency converter test tool, comprising a test host and a placing rack, the placing rack comprises a plurality of placing plates arranged at intervals along the height direction, and a wire slot plate is fixedly arranged on the front side of the placing plate; a plurality of limiting holes are arranged along the length direction at the position close to the wire slot plate; the wire slot plate is provided with a plurality of parallel and side-by-side wire grooves, and each wire groove is provided with a mounting hole, and the mounting hole is arranged corresponding to the limiting hole; the mounting hole is provided with a tight binding piece from bottom to top, and the tight binding piece is fixedly connected with the lower surface of the placing plate from top to bottom after penetrating through the limiting hole; the tight binding piece can be fixed at multiple positions of the lower surface of the placing plate. On the basis of the existing frequency converter test tool, by increasing the limiting hole and the mounting hole, the tight binding piece can be additionally arranged, and the tight binding piece can limit the test wire in the wire groove by the way of tension to limit its position.

Description

Technical Field

[0001] This utility model relates to the technical field of frequency converter testing equipment, specifically a frequency converter testing fixture. Background Technology

[0002] To ensure the proper functioning of frequency converters, they must be tested before leaving the factory. Testing fixtures typically need to test multiple frequency converters at once, so many test leads are provided for operators to connect. The frequency converters need to be arranged on a rack, and then the testing unit simply needs to complete the testing. To easily identify faulty frequency converters, the test leads are usually labeled and connected to the corresponding frequency converters. However, during use, cables may become tangled, causing labeled test leads to not connect to the corresponding frequency converters, requiring operators to verify the connection. Utility Model Content

[0003] To address the problem of messy and difficult-to-organize test lines in the aforementioned fixtures used for frequency converter testing, this utility model provides a frequency converter testing fixture.

[0004] The technical solution of this utility model is as follows:

[0005] A frequency converter testing fixture includes a testing host and a placement rack. The placement rack includes a plurality of placement plates spaced apart along the height direction, and a wire groove plate is fixedly provided on the front side of the placement plate.

[0006] The placement plate has multiple limiting holes along its length near the wire groove plate;

[0007] The wire channel plate is provided with multiple parallel and side-by-side wire channels, and each wire channel is provided with a mounting hole, and the mounting hole is arranged in correspondence with the limiting hole.

[0008] The mounting hole is provided with a fastening member extending from the bottom upward, and the fastening member extends downward from the top of the limiting hole and is detachably fixed to the lower surface of the placement plate;

[0009] The fastener can be fixed at multiple locations on the lower surface of the placement plate.

[0010] Based on the existing inverter testing fixture, by adding limiting holes and mounting holes, it can be equipped with additional fastening components. The fastening components can restrict the test wires within the sink groove by tightening, thereby preventing misalignment.

[0011] To facilitate wire management, the width of the sink groove is the same as the diameter of the test wire, and the depth of the sink groove is a positive integer multiple of the diameter of the test wire.

[0012] The specific structure of the aforementioned fastening member is as follows: the fastening member includes a strap, one end of which is provided with a buckle, and the other end is provided with a locking hole.

[0013] In order to limit the strap, the buckle cannot pass through the mounting hole, and the locking hole is fixed to the placement plate by a locking member.

[0014] To facilitate insertion of the strap into the opening, the end of the strap away from the opening is triangular.

[0015] As a preferred embodiment, the lengths of the plurality of sink grooves gradually decrease along a direction perpendicular to the length of the placement plate.

[0016] To facilitate the replacement of test leads, each test lead is secured by at least one fastener and at most two fasteners.

[0017] To achieve better fixation, the number of test lines in a single sink groove shall not exceed two.

[0018] To facilitate tightening of the strap, the strap is provided with multiple locking holes along its length.

[0019] As a preferred embodiment, the strap is made of an elastic material.

[0020] The beneficial effects of this utility model are as follows: This utility model is a frequency converter testing fixture. Based on the existing frequency converter testing fixture, by additionally setting a wire channel plate and setting limiting holes and mounting holes on its placement frame, it is easy to install the fastening component structure. The main body of the fastening component is a strap, which is easy to bend and use, and the thickness will not affect the normal layout of the original test lines. After installation, the strap restricts it to ensure that it will not fall off the original working position, thus facilitating wire management. Moreover, due to the elasticity of the strap itself, even when the test lines are fixed, the position of the test lines can be manually changed to a certain extent to perform wiring operations. Attached Figure Description

[0021] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.

[0022] In the attached diagram:

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a top sectional view of the placement rack of this utility model;

[0025] Figure 3 This is a top sectional view of the placement rack of this utility model (after setting the test lines).

[0026] Figure 4 This is a schematic cross-sectional view of the test structure of the placement rack of this utility model;

[0027] Figure 5 This is a schematic diagram of the fastening component of the present invention;

[0028] The components represented by the various reference numerals in the diagram are:

[0029] 1. Test host; 2. Placement rack; 21. Placement plate; 211. Limiting hole; 22. Cable tray plate; 221. Cable tray; 222. Mounting hole; 3. Inverter; 4. Test cable; 5. Fastening component; 51. Cable tie; 52. Buckle; 53. Locking hole; 6. Locking component. Detailed Implementation

[0030] Example

[0031] like Figure 1 The inverter testing fixture shown includes a test host 1 and a mounting rack 2. The test host 1 is a conventional testing device, and its structure will not be described in detail. The key feature of this device is that the mounting rack 2 includes multiple mounting plates 21 spaced apart along the height direction, and a wire channel plate 22 is fixedly mounted on the front side of the mounting plate 21. Conventional mounting racks 2 only have mounting plates 21 and do not have wire channel plates 22. Some users also choose to make holes in the mounting plates 21 and then fix them with cable ties. However, this method is limited by the strength of the cable ties and the movement of the test lines in some cases during use, so the actual effect is poor.

[0032] Furthermore, based on the above structure, the placement plate 21 is provided with a plurality of limiting holes 211 along the length direction near the wire groove plate 22, and the limiting holes 211 are rectangular elongated holes to facilitate the passage of the wider strap 51.

[0033] Then, the wire channel plate 22 is provided with a plurality of parallel and side-by-side wire slots 221. The test wire 4 can be set in the wire slot 221. In this way, it can be ensured that when the inverter 3 is moved out of the placement plate 21, it will not be difficult to move due to interference from the test wire 4. Each wire slot 221 is provided with a mounting hole 222. The mounting hole 222 is used in conjunction with the limiting hole 211. Therefore, the mounting hole 222 and the limiting hole 211 are arranged correspondingly. In use, the strap 51 needs to pass through each opening in sequence to achieve a fastening effect. Moreover, the mounting hole 222 is also a rectangular long hole, but its width needs to be greater than that of the limiting hole 211 to facilitate the insertion of the strap 51.

[0034] After completing the opening design, such as Figure 2-4As shown, the mounting hole 222 is provided with a fastening member 5 extending from the bottom upward, and the fastening member 5 extends downward from above the limiting hole 211 and is detachably fixed to the lower surface of the placement plate 21. The detachable fixing method between the fastening member 5 and the placement plate 21 can be various. If a locking hole 53 is provided on the strap 51, it can be directly fixed to the threaded hole on the lower surface of the placement plate 21 by the locking member 6, that is, the locking bolt.

[0035] Furthermore, it should be noted that the fastening member 5 can be fixed at multiple positions on the lower surface of the placement plate 21. This can be achieved by setting multiple threaded holes under the placement plate 21. Similarly, in order to achieve the fastening effect of the strap 51, that is, to facilitate the tightening of the strap 51, the strap 51 is provided with multiple locking holes 53 along the length direction, which can also achieve the required fastening effect.

[0036] And, as Figure 5 As shown, the specific structure of the fastening member 5 is as follows: the fastening member 5 includes a strap 51, one end of which is provided with a buckle 52 and the other end is provided with a locking hole 53. The strap 51 is used as the main body for contacting and tightening the test line 4, while the buckle 52 is used for limiting. In order to limit the strap 51, the buckle 52 cannot pass through the mounting hole 222. The locking hole 53 is passed through by the locking member 6 and fixed to the placement plate 21. In this way, a more convenient fixing structure than the cable tie can be achieved. The use of the above fixing structure is also very convenient, and setting it in the sink groove 221 will not affect the normal arrangement of the test line 4.

[0037] Based on the above structure, in order to facilitate the insertion of the strap 51 into the opening, the end of the strap 51 away from the opening is triangular for ease of use.

[0038] The above structure enables the addition of a limiting hole 211 and a mounting hole 222 to the existing inverter 3 testing fixture, thereby enabling the additional installation of a fastening member 5. The fastening member 5 can restrict the test wire 4 within the sink groove 221 by tightening, thus preventing misalignment. It can better position and fix the test wire 4, and facilitate its disassembly and assembly. Furthermore, its structural features ensure that it does not occupy too much space or affect the test wire.

[0039] It should also be noted that, as a preferred embodiment, for ease of wire management, the width of the sink groove 221 is the same as the diameter of the test wire 4, and the depth of the sink groove 221 is a positive integer multiple of the diameter of the test wire 4, and as shown in the figure... Figure 2 , 3As shown, the length of the plurality of sink grooves 221 gradually decreases along the direction perpendicular to the length of the placement plate 21. The positions where sink grooves 221 are not used can be directly set as solids to improve the overall strength of the structure.

[0040] Furthermore, in order to facilitate the replacement of the test line 4, each test line 4 is fixed by at least one fastener 5 and by a maximum of two fasteners 5. In order to obtain a better fixing effect, the number of test lines 4 in a single sink groove 221 shall not exceed two.

[0041] Finally, the strap 51 is made of elastic material, which provides better fixation when tightened.

Claims

1. A frequency converter testing fixture, comprising a testing host and a mounting rack, characterized in that, The placement rack includes multiple placement plates spaced apart along the height direction, and a wire groove plate is fixedly installed on the front side of the placement plate; The placement plate has multiple limiting holes along its length near the wire groove plate; The wire channel plate is provided with multiple parallel and side-by-side wire channels, and each wire channel is provided with a mounting hole, and the mounting hole is arranged in correspondence with the limiting hole. The mounting hole is provided with a fastening member extending from the bottom upward, and the fastening member extends downward from the top of the limiting hole and is detachably fixed to the lower surface of the placement plate; The fastener can be fixed at multiple locations on the lower surface of the placement plate.

2. The inverter testing fixture according to claim 1, characterized in that, The width of the sink groove is the same as the diameter of the test wire, and the depth of the sink groove is a positive integer multiple of the diameter of the test wire.

3. The inverter testing fixture according to claim 1, characterized in that, The fastening component includes a strap, one end of which is provided with a buckle and the other end with a locking hole.

4. The inverter testing fixture according to claim 3, characterized in that, The buckle cannot pass through the mounting hole, and the locking hole is fixed to the placement plate by a locking element.

5. The inverter testing fixture according to claim 3, characterized in that, The end of the strap away from the opening is triangular.

6. The inverter testing fixture according to claim 1, characterized in that, The lengths of the plurality of sink grooves gradually decrease along a direction perpendicular to the length of the placement plate.

7. The inverter testing fixture according to claim 2, characterized in that, Each test wire is secured by at least one fastener and by a maximum of two fasteners.

8. The inverter testing fixture according to claim 1, characterized in that, The number of test leads in a single sink groove shall not exceed two.

9. The inverter testing fixture according to claim 3, characterized in that, The strap has multiple locking holes along its length.

10. The inverter testing fixture according to claim 3, characterized in that, The strap is made of elastic material.

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