Electronic transformer winding deformation tester

Abstract

The invention relates to the technical field of power equipment, and provides an electronic transformer winding deformation tester which comprises a winding deformation tester body and a sealing cover hinged to the outer surface of the top side of the winding deformation tester body. The upper surface of the winding deformation tester body is provided with a wire harness bayonet socket used for butting a detection wire harness, and the lower surface of the winding deformation tester body is provided with a supporting structure; the supporting structure comprises a threaded rotating sleeve, a lifting screw rod and a supporting block; a wire harness fixing mechanism used for fixing a wire harness is installed on the upper surface of the winding deformation tester body through bolts, and the wire harness fixing mechanism comprises a shell, an abutting frame, an abutting block, a bearing frame, an elastic structure and a swing structure. The wire harness tester is compact in structure, convenient to operate, good in adaptability and capable of being suitable for wire harnesses of different specifications and types, the tester can be suitable for more application scenes, and the universality and practicability of the tester are improved.

Description

Technical Field

[0001] The invention relates to the technical field of electric power equipment, and in particular to an electronic transformer winding deformation tester. Background Art

[0002] The winding deformation tester is an instrument for measuring the winding deformation of the transformer according to the national power industry standard DL / T911-2004. It mainly detects the amplitude-frequency response characteristics of each winding of the transformer, and compares the test results vertically or horizontally. According to the degree of change of the amplitude-frequency response characteristics, the possible winding deformation of the transformer is judged.

[0003] The winding deformation tester determines the possible deformation of the transformer winding by detecting the amplitude-frequency response characteristics of each transformer winding. In order to achieve this function, the tester needs to be electrically connected to the transformer winding to obtain its frequency response data. The plug-in wiring harness is the key component to achieve this electrical connection. It can transmit the output signal of the tester to the transformer winding and receive the feedback signal of the winding for the tester to analyze and process.

[0004] However, the winding deformation tester lacks a fixed positioning structure for the plug-in wiring harness. The wiring harness may move or deform during the test due to external forces such as wind, human touch, etc. This movement or deformation may cause relative displacement between the wires inside the wiring harness, thereby affecting the signal transmission quality. Specifically, it may cause problems such as signal attenuation, distortion or interference, which in turn affects the tester's accurate judgment of the transformer winding deformation. In view of this, an electronic transformer winding deformation tester is proposed to solve the above-mentioned problems. Summary of the invention

[0005] The present invention proposes an electronic transformer winding deformation tester, which has a compact structure, is easy to operate, has good adaptability, and can be applied to wiring harnesses of different specifications and types, so that the tester can be applied to more application scenarios, thereby improving its versatility and practicality.

[0006] The technical solution of the present invention is as follows: an electronic transformer winding deformation tester, comprising a winding deformation tester body and a sealing cover hingedly mounted on the outer surface of the top side of the winding deformation tester body, characterized in that a harness connector for docking a detection harness is mounted on the upper surface of the winding deformation tester body, and a supporting structure is arranged on the lower surface of the winding deformation tester body;

[0007] The support structure includes a threaded sleeve, a lifting screw and a support block;

[0008] The upper surface of the winding deformation tester body is bolted with a wire harness fixing mechanism for fixing the wire harness, and the wire harness fixing mechanism includes a housing, an abutment frame, an abutment block, a bearing frame, an elastic structure and a swing structure;

[0009] The elastic force structure comprises a first return spring, a first guide rod and a second return spring;

[0010] The swing structure comprises a swing arm, a connecting shaft, a clamping block and a clamping shell. A first groove matching the clamping block is provided inside the abutting block, and a second groove matching the clamping block is provided inside the clamping shell.

[0011] Preferably, the threaded sleeve bearing is installed on the lower surface of the winding deformation tester body, the lifting screw is connected to the internal thread of the threaded sleeve, and the support block is fixedly installed on the bottom end of the lifting screw.

[0012] Preferably, a receiving groove for the lifting screw is opened inside the lifting screw, and the top end of the lifting screw passes through the threaded sleeve and extends into the receiving groove, and the number of the supporting structures is four.

[0013] Preferably, the abutment frame is L-shaped in shape, a through hole and a telescopic hole communicating with the outside are provided inside the shell, a concave limiting area is provided inside the shell, and the through hole and the telescopic hole are communicated.

[0014] Preferably, the bottom end of the abutment block extends to the inside of the shell through a telescopic hole, the abutment block has a T-shaped appearance, and an arc-shaped groove is provided in its cross section, and a protective pad is fixedly installed in the arc-shaped groove.

[0015] Preferably, the support frame extends to the interior of the shell through a through hole, the first return spring is fixedly installed between the abutment block and the support frame, and the first guide rod is fixedly installed on a side of the support frame close to the abutment block.

[0016] Preferably, an extension groove extending from the first guide rod is formed inside the abutment block, the other end of the first guide rod extends into the extension groove, and the first return spring surrounds the outside of the first guide rod.

[0017] Preferably, a mounting platform extending into the limit area is fixedly installed on one side of the housing away from the swing arm, the concave surfaces of groove one and groove two are arranged opposite to each other, the number of the clamping blocks of the swing structure is two, and the two clamping blocks are movably engaged with the inside of groove one and groove two respectively.

[0018] Preferably, a second return spring fixed to the top wall in the limiting area is bolted fixedly connected to the upper surface of the mounting platform, and the connecting shaft bearing is installed inside the shell.

[0019] Preferably, a second guide rod is fixedly mounted on the upper surface of the housing, a limiting groove communicating with the limiting area is provided inside the housing, and a top end of the second guide rod extends into the limiting groove.

[0020] The working principle and beneficial effects of the present invention are:

[0021] 1. The present invention has the advantage of high flexibility. By rotating the lifting screw in the threaded sleeve, the height of the tester can be easily adjusted. This design enables the tester to adapt to different working environments and ground conditions, ensuring the stability and accuracy of the instrument during the test. At the same time, the adjustable height also makes it easy for users to adjust the tester to the most comfortable working height according to actual operating requirements, reducing fatigue during operation.

[0022] 2. The present invention has four supporting structures, each of which includes a threaded sleeve, a lifting screw and a supporting block. This design greatly enhances the overall stability of the tester. The four-point support can more evenly distribute the weight of the tester, preventing the tester from tilting or tipping over during operation, thereby ensuring the accuracy and safety of the test results.

[0023] 3. The storage slot design opened inside the winding deformation tester body of the present invention allows the lifting screw to be partially or completely stored in the storage slot when the support structure is not in use, thereby reducing the overall volume of the tester and facilitating carrying and transportation. This is undoubtedly an important convenience for users who need to frequently move the tester for testing.

[0024] 4. The present invention can effectively fix the wiring harness at a specified position by using the abutment block and the clamping block in combination. The groove 1 inside the abutment block is matched with the clamping block, which can ensure that the clamping block can be firmly embedded therein, thereby achieving stable fixation of the wiring harness. At the same time, the clamping shell and the groove 2 inside it further enhance the stability of the fixation, and can maintain the firmness of the fixation even when the wiring harness is pulled by external force.

[0025] 5. The design of the swing structure of the present invention allows the clamping block to swing conveniently, thereby facilitating the installation and removal of the wiring harness. The user only needs to perform simple operations to fix the wiring harness on the abutment block or remove it from the abutment block. This design not only improves work efficiency, but also reduces the risk of equipment damage caused by frequent installation and removal of the wiring harness.

[0026] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Figure 1 It is a three-dimensional front view of the overall structure of the present invention;

[0029] Figure 2 It is a three-dimensional schematic diagram of the overall structure of the support structure of the present invention;

[0030] Figure 3 It is a three-dimensional schematic diagram of the wiring harness fixing mechanism structure of the present invention;

[0031] Figure 4 It is a three-dimensional schematic diagram of the partial structure of the anti-fixation mechanism of the present invention;

[0032] Figure 5 A three-dimensional cross-sectional view of the shell structure of the present invention;

[0033] Figure 6 A three-dimensional schematic diagram of the structure of the jammer of the present invention;

[0034] Figure 7 A three-dimensional schematic diagram of the structure of the abutment block of the present invention;

[0035] Figure 8 It is a three-dimensional cross-sectional view of the structure of the extension groove of the present invention.

[0036] In the figure: 1. winding deformation tester body; 2. sealing cover; 3. wiring harness socket; 4. supporting structure; 401. threaded sleeve; 402. lifting screw; 403. supporting block; 5. wiring harness fixing mechanism; 501. shell; 5011. perforation; 5012. limit area; 5013. limit groove; 5014. telescopic hole; 502. abutment frame; 503. abutment block; 5031. groove one; 504. protective pad; 505. bearing frame; 506. swing arm; 5061. connecting shaft; 507. block; 508. jam shell; 5081. groove two; 509. first reset spring; 510. first guide rod; 511. mounting table; 512. second guide rod; 513. second reset spring; 514. extension groove. DETAILED DESCRIPTION

[0037] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Example 1

[0039] like Figure 1 to Figure 3As shown, this embodiment proposes an electronic transformer winding deformation tester, including a winding deformation tester body 1 and a sealing cover 2 hingedly mounted on the outer surface of the top side of the winding deformation tester body 1, characterized in that a harness socket 3 for docking and detecting a harness is mounted on the upper surface of the winding deformation tester body 1, and a support structure 4 is arranged on the lower surface of the winding deformation tester body 1; the support structure 4 includes a threaded sleeve 401, a lifting screw 402 and a support block 403. The threaded sleeve 401 bearing is mounted on the lower surface of the winding deformation tester body 1, the lifting screw 402 is connected to the internal thread of the threaded sleeve 401, and the support block 403 is fixedly mounted on the bottom end of the lifting screw 402. By rotating the lifting screw 402 in the threaded sleeve 401, the height of the tester can be conveniently adjusted. This design enables the tester to adapt to different working environments and ground conditions, ensuring the stability and accuracy of the instrument during the test. At the same time, the adjustable height also facilitates the user to adjust the tester to the most comfortable working height according to actual operation requirements, reducing fatigue during operation.

[0040] A storage groove for the lifting screw 402 is provided inside the lifting screw 402. The top of the lifting screw 402 passes through the threaded sleeve 401 and extends into the storage groove. The storage groove design provided inside the winding deformation tester body allows the lifting screw 402 to be partially or completely stored in the storage groove when the support structure 4 is not in use, thereby reducing the overall volume of the tester and facilitating carrying and transportation. This is undoubtedly an important convenience for users who need to frequently move the tester for testing.

[0041] Specifically, there are four support structures 4. With four support structures 4, each support structure 4 includes a threaded sleeve 401, a lifting screw 402 and a support block 403. Such a design greatly enhances the overall stability of the tester. The four-point support can more evenly distribute the weight of the tester, prevent the tester from tilting or tipping over during operation, and thus ensure the accuracy and safety of the test results.

[0042] In addition, the support structure 4 is threadedly connected, so the user can easily replace or repair the lifting screw 402 without disassembling the entire tester, which not only reduces maintenance costs but also improves the availability and reliability of the tester.

[0043] Example 2

[0044] like Figures 1 to 8As shown, based on the same concept as the above-mentioned embodiment 1, in this embodiment, the upper surface of the winding deformation tester body 1 is bolted with a harness fixing mechanism 5 for fixing the harness, and the harness fixing mechanism 5 includes a housing 501, an abutment frame 502, an abutment block 503, a support frame 505, an elastic structure and a swing structure; the elastic structure includes a first return spring 509, a first guide rod 510 and a second return spring 513; the swing structure includes a swing arm 506, a connecting shaft 5061, a clamping block 507 and a clamping shell 508, and a groove 1 5031 adapted to the clamping block 507 is provided inside the abutment block 503, and a groove 2 5081 adapted to the clamping block 507 is provided inside the clamping shell 508. Through the coordinated use of the abutment block 503 and the clamping block 507, the harness can be effectively fixed at a specified position. The groove 1 5031 inside the abutment block 503 is matched with the clamping block 507, which can ensure that the clamping block 507 can be firmly embedded therein, thereby achieving stable fixation of the wiring harness. At the same time, the clamping shell 508 and the groove 2 5081 inside it further enhance the stability of the fixation, and the fixation can be maintained firmly even when the wiring harness is pulled by external force.

[0045] In addition, the swing structure design allows the clamping block 507 to swing conveniently, thereby facilitating the installation and removal of the wiring harness. The user can fix the wiring harness on the abutment block 503 or remove it from the abutment block 503 through simple operations. This design not only improves work efficiency, but also reduces the risk of equipment damage caused by frequent installation and removal of the wiring harness.

[0046] Specifically, the abutment frame 502 is L-shaped in shape, and the wiring harness can be fixed by the abutment cooperation between the abutment block 503 and the abutment frame 502. A fixing block for installation and fixing is welded on the outside of the abutment frame 502. A through hole 5011 and a telescopic hole 5014 connected to the outside are provided inside the shell 501, and a concave limiting area 5012 is provided inside the shell 501, and the through hole 5011 and the telescopic hole 5014 are connected. The connection and cooperation between the various components are designed to be relatively simple and clear, so when the wiring harness fixing mechanism 5 fails or needs maintenance, the user can easily disassemble and replace the relevant components. This design reduces the maintenance cost and time cost, and improves the availability and reliability of the tester. The number of the second guide rod 512 and the second return spring 513 are both four. There are four swing arms 506 , and two connecting shafts 5061 . The bearings of the four swing arms 506 are installed on the outer surfaces of the two connecting shafts 5061 , and the four swing arms 506 are symmetrically arranged on the outer surfaces of the two connecting shafts 5061 .

[0047] In this embodiment, the bottom end of the abutment block 503 extends to the inside of the housing 501 through the telescopic hole 5014. The abutment block 503 has a T-shaped shape, and its cross section is provided with an arc groove, and a protective pad 504 is fixedly installed in the arc groove. The support frame 505 extends to the inside of the housing 501 through the through hole 5011. The first return spring 509 is fixedly installed between the abutment block 503 and the support frame 505, and the first guide rod 510 is fixedly installed on the side of the support frame 505 close to the abutment block 503. An extension groove 514 extending from the first guide rod 510 is provided inside the abutment block 503, and the other end of the first guide rod 510 extends into the extension groove 514, and the first return spring 509 surrounds the outside of the first guide rod 510. The first guide rod 510 is fixedly installed on the side of the support frame 505 close to the abutment block 503, and the other end thereof extends into the extension groove 514 inside the abutment block 503. Such a design not only provides accurate guidance for the movement of the abutment block 503, but also limits the range and direction of its movement. The coordinated use of the first guide rod 510 and the extension slot 514 ensures the stability and accuracy of the abutment block 503 during movement, and avoids damage or failure caused by improper movement. The bottom end of the abutment block 503 extends to the inside of the housing 501 through the telescopic hole 5014, and its shape is T-shaped. Such a design not only provides a larger contact area, but also enhances the stability of the abutment block 503 inside the housing 501.

[0048] The protective pad 504 fixedly installed in the arc-shaped groove can further increase the friction between the wire harness and the wire harness, preventing the wire harness from sliding or falling off during the fixing process, thereby improving the fixing effect and safety.

[0049] When the present embodiment is in use, the first return spring 509 is fixedly installed between the abutment block 503 and the carrier 505. Such a design allows the abutment block 503 to move up and down within a certain range to adapt to wire harnesses of different diameters or thicknesses. When the wire harness is put in or taken out, the abutment block 503 may move under the action of external force, but once the external force disappears, the first return spring 509 will automatically restore its original length, pushing the abutment block 503 back to the initial position, ensuring that the wire harness is firmly fixed.

[0050] This embodiment makes the design relatively simple and clear through the connection and cooperation between the abutment block 503, the carrier frame 505, the first return spring 509 and the first guide rod 510, which not only reduces the manufacturing cost and maintenance cost, but also improves the durability and reliability of the entire wire harness fixing mechanism 5. The close cooperation and precise installation between the various components ensure the stability and accuracy of the wire harness fixing mechanism 5 during operation and extend its service life.

[0051] In this embodiment, a mounting platform 511 extending to the inside of the limiting area 5012 is fixedly installed on the side of the housing 508 away from the swing arm 506, and the concave surfaces of the first groove 5031 and the second groove 5081 are arranged opposite to each other. There are two clamping blocks 507 of the swing structure, and the two clamping blocks 507 are respectively movably engaged with the inside of the first groove 5031 and the second groove 5081. The upper surface of the mounting platform 511 is bolted and fixedly connected with a second return spring 513 fixed to the top wall of the limiting area 5012, and the connecting shaft 5061 is bearing-mounted inside the housing 501. A second guide rod 512 is fixedly installed on the upper surface of the housing 508, and a limiting groove 5013 communicating with the limiting area 5012 is opened inside the housing 501, and the top end of the second guide rod 512 extends into the limiting groove 5013. In the design of the harness fixing mechanism 5, the specific configuration of the mounting platform 511, the second return spring 513, the connecting shaft 5061, the second guide rod 512 and the limit groove 5013 brings the following significant benefits: Enhanced stability and return capability:

[0052] The mounting platform 511 is fixedly mounted on the side of the jamming shell 508 away from the swing arm 506, and extends to the inside of the limiting area 5012. Such a design not only provides a stable support for the jamming shell 508, but also ensures the stability and accuracy of the jamming shell 508 during movement. The second reset spring 513 is fixedly connected between the upper surface of the mounting platform 511 and the inner top wall of the limiting area 5012. Such a design allows the jamming shell 508 (and the block 507 thereon) to move when subjected to an external force, and automatically reset to the initial position after the external force disappears. This enhances the stability and reliability of the wiring harness fixation.

[0053] Precise guiding and limiting functions: The second guide rod 512 is fixedly mounted on the upper surface of the jam shell 508 and extends into the limiting groove 5013 inside the housing 501. Such a design not only provides precise guidance for the movement of the jam shell 508, but also limits the range and direction of its movement, thereby avoiding damage or malfunction caused by improper movement. The connection design between the limiting groove 5013 and the limiting area 5012 ensures the stability and accuracy of the jam shell 508 during movement, while also providing sufficient movement space for the second guide rod 512.

[0054] Flexible clamping and releasing functions: There are two clamping blocks 507 of the swing structure, which are respectively movably clamped in the groove 1 5031 and the groove 2 5081. This design allows the user to release or fix the wire harness through simple operations (such as swinging the swing arm 506), thereby improving work efficiency and convenience. The concave surfaces of the groove 1 5031 and the groove 2 5081 are arranged opposite to each other, ensuring that the clamping block 507 can be firmly clamped in the groove, thereby achieving stable fixation of the wire harness.

[0055] Optimized structural design and durability: The bearing of the connecting shaft 5061 is installed inside the housing 501. This design not only reduces the friction and resistance of the swing arm 506 during the swinging process, but also improves its durability and reliability.

[0056] In summary, these design features bring multiple advantages to the harness fixing mechanism 5, such as enhanced stability, precise guiding function, flexible clamping and releasing capabilities, and optimized structural design and durability. These advantages not only improve the practicality and work efficiency of the tester, but also reduce the risk of equipment damage and maintenance costs.

[0057] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electronic transformer winding deformation tester, comprising a winding deformation tester body (1) and a sealing cover (2) hingedly mounted on the top outer surface of the winding deformation tester body (1), characterized in that: A wiring harness connector (3) for docking and testing a wiring harness is installed on the upper surface of the winding deformation tester body (1), and a supporting structure (4) is provided on the lower surface of the winding deformation tester body (1); The support structure (4) comprises a threaded sleeve (401), a lifting screw (402) and a support block (403); The upper surface of the winding deformation tester body (1) is bolted with a wire harness fixing mechanism (5) for fixing the wire harness, and the wire harness fixing mechanism (5) comprises a housing (501), an abutment frame (502), an abutment block (503), a bearing frame (505), an elastic structure and a swing structure; The elastic force structure comprises a first return spring (509), a first guide rod (510) and a second return spring (513); The swing structure comprises a swing arm (506), a connecting shaft (5061), a clamping block (507) and a clamping shell (508); a first groove (5031) adapted to the clamping block (507) is provided inside the abutting block (503); a second groove (5081) adapted to the clamping block (507) is provided inside the clamping shell (508).

2. The electronic transformer winding deformation tester according to claim 1, characterized in that: The threaded sleeve (401) bearing is installed on the lower surface of the winding deformation tester body (1), the lifting screw (402) is connected to the internal thread of the threaded sleeve (401), and the support block (403) is fixedly installed on the bottom end of the lifting screw (402).

3. The electronic transformer winding deformation tester according to claim 2, characterized in that: A receiving groove for the lifting screw (402) is provided inside the lifting screw (402), and the top end of the lifting screw (402) passes through the threaded sleeve (401) and extends into the receiving groove. The number of the supporting structures (4) is four.

4. The electronic transformer winding deformation tester according to claim 1, characterized in that: The abutment frame (502) is L-shaped in shape, a through hole (5011) and a telescopic hole (5014) communicating with the outside are provided inside the shell (501), a concave limiting area (5012) is provided inside the shell (501), and the through hole (5011) and the telescopic hole (5014) are communicated.

5. The electronic transformer winding deformation tester according to claim 4, characterized in that: The bottom end of the abutment block (503) extends to the inside of the shell (501) through the telescopic hole (5014); the abutment block (503) is T-shaped in appearance, and its cross section is provided with an arc groove, in which a protective pad (504) is fixedly installed.

6. The electronic transformer winding deformation tester according to claim 5, characterized in that: The support frame (505) extends to the interior of the housing (501) through the through hole (5011), the first return spring (509) is fixedly installed between the abutment block (503) and the support frame (505), and the first guide rod (510) is fixedly installed on one side of the support frame (505) close to the abutment block (503).

7. The electronic transformer winding deformation tester according to claim 6, characterized in that: An extension groove (514) extending from the first guide rod (510) is provided inside the abutment block (503), the other end of the first guide rod (510) extends into the extension groove (514), and the first return spring (509) surrounds the outside of the first guide rod (510).

8. The electronic transformer winding deformation tester according to claim 1, characterized in that: A mounting platform (511) extending into the interior of the limiting area (5012) is fixedly mounted on one side of the housing (508) away from the swing arm (506); the concave surfaces of the first groove (5031) and the second groove (5081) are arranged opposite to each other; there are two clamping blocks (507) of the swing structure, and the two clamping blocks (507) are respectively movably clamped into the interior of the first groove (5031) and the second groove (5081).

9. The electronic transformer winding deformation tester according to claim 8, characterized in that: The upper surface of the mounting platform (511) is bolted to a second return spring (513) fixed to the inner top wall of the limiting area (5012), and the connecting shaft (5061) bearing is installed inside the housing (501).

10. The electronic transformer winding deformation tester according to claim 9, characterized in that: A second guide rod (512) is fixedly mounted on the upper surface of the housing (508), a limiting groove (5013) communicating with the limiting area (5012) is provided inside the housing (501), and the top end of the second guide rod (512) extends into the limiting groove (5013).

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