Built-in partial discharge sensor mounting structure

Abstract

The utility model discloses a built-in partial discharge sensor mounting structure, which belongs to the technical field of sensor mounting structures and comprises a mounting disc, a mounting block, a protective cover and a fixing block fixedly mounted on a transformer. An inner groove is formed in the middle of the left side of the mounting disc; an insulating sleeve is fixedly mounted on the left side of the mounting block; a sensor is fixedly mounted on the left side of the insulating disc; a connecting disc is mounted on the protective cover; an annular slot is fixedly formed in the middle of the left side of the connecting disc; mounting structures are mounted on the fixing block, the mounting disc, the mounting block and the connecting disc, each mounting structure comprises a mounting assembly and a quick mounting assembly, the mounting assemblies are mounted on the fixing block, the mounting disc, the mounting block and the connecting disc, and the quick mounting assemblies are mounted on the mounting disc and the connecting disc. In this way, the connecting disc is quickly fixed to the right side of the mounting disc through the quick mounting assembly, the connecting disc is fastened through the mounting assembly after preliminary mounting is completed, and the connecting disc is prevented from moving during mounting.

Description

Technical Field

[0001] The utility model relates to the technical field of sensor installation structures, and particularly relates to an installation structure for an in-built partial discharge sensor. Background Technique

[0002] The exterior of a power transformer has a fully metallic structure, making it difficult to conduct ultra-high frequency partial discharge detection on the transformer from the outside. Therefore, the currently commonly used detection method is an in-built sensor. The in-built sensor is installed inside the transformer through an installation structure, and at the same time, a protective insulation layer is used to prevent the sensor from being interfered by external signals.

[0003] For example, Chinese Patent CN218826466U discloses a transformer in-built partial discharge sensor. By installing a discharge sensor and a sensor cover on the outside of the transformer, the installation, removal, and replacement of the discharge sensor become simple. At the same time, a connector cover is installed on the outside screw of the discharge sensor, which can protect the discharge sensor.

[0004] However, for the convenience of installation and maintenance, some sensors are installed on the side or bottom of the detection path during installation. When the connector cover is installed and tightened on the outside of the sensor through a screw and nut, the connector cover is prone to move during the installation and tightening process, resulting in misalignment of the remaining installation holes and making it inconvenient for installation and tightening.

[0005] Based on this, the utility model designs an installation structure for an in-built partial discharge sensor to solve the above problems. Content of the Utility Model

[0006] In view of the above-mentioned drawbacks of the prior art, the utility model provides an installation structure for an in-built partial discharge sensor.

[0007] To achieve the above objectives, the utility model is realized through the following technical solutions:

[0008] An installation structure for an in-built partial discharge sensor, comprising an installation disk, an installation block, a protective cover, and a fixed block fixedly installed on a transformer;

[0009] The installation block, the sensor, the installation disk, and the protective cover are sequentially arranged on the right side of the fixed block; a inner groove is opened in the middle of the left side of the installation disk, and an insulating disk is fixedly installed on the right side of the inner groove; an insulating sleeve is fixedly installed on the left side of the installation block; a sensor is fixedly installed in the middle of the left side of the insulating disk; a wiring sleeve is fixedly installed at the bottom of the protective cover, and a connection disk is fixedly installed at the edge of the protective cover; a circular convex block is fixedly installed in the middle of the left side of the connection disk;

[0010] An installation mechanism is installed on the fixed block, mounting disc, mounting block and connecting disc. The installation mechanism includes an installation component and a quick installation component. The installation component is installed on the fixed block, mounting disc, mounting block and connecting disc, and the quick installation component is installed on the mounting disc and the connecting disc; the mounting disc and the mounting block are installed on the fixed block through the installation component, and the connecting disc is installed on the right side of the mounting disc through the installation component and the quick installation component.

[0011] Furthermore, the installation component includes a support block, a receiving groove and an installation groove. A support block is fixedly installed on the right edge of the fixed block, a receiving groove for receiving the mounting block is opened in the middle of the right side of the fixed block, and an installation groove is opened on the inner edge of the receiving groove.

[0012] Furthermore, mounting holes are respectively arranged at equal intervals in a circumferential array on the edges of the support block, mounting disc, mounting block, connecting disc and the bottom edge of the receiving groove; the mounting holes on the outer circle of the mounting disc are aligned with the mounting holes on the support block, and the mounting disc is installed on the right side of the fixed block through the mounting holes and the matching screws and nuts; the mounting holes on the mounting block are aligned with the mounting holes on the receiving groove, and the mounting block is installed between the mounting disc and the fixed block through the mounting holes and the matching screws and nuts; the mounting holes on the edge of the connecting disc are aligned with the mounting holes on the inner circle of the mounting disc, and the connecting disc is installed on the right side of the mounting disc through the mounting holes and the matching nuts and screws.

[0013] Furthermore, the quick installation component includes a jack, a locking plug, a locking block and a guiding surface. Jacks are arranged at equal intervals in a circumferential array on the connecting disc, locking plugs are fixedly installed at equal intervals in a circumferential array on the right side of the mounting disc, a locking block is rotatably installed in the middle of the outer end of the locking plug, and the size of the locking block is the same as that of the locking plug; a guiding surface is also arranged on the left side of the locking block; the locking block fits and slides on the right side wall of the connecting disc through the guiding surface; the jack is inserted with the locking plug and the locking block.

[0014] Furthermore, an outer groove is opened on the left edge of the mounting disc, and the outer groove is inserted with the support block; a support groove is opened in the middle of the right side of the mounting disc; the support groove is inserted with a convex block.

[0015] Furthermore, an insulating annular plug is fixedly installed on the right side of the mounting block, the annular plug is inserted into the inner groove, and the annular plug abuts against the insulating disc; a positioning block is fixedly installed on the outer edge of the left side of the mounting block, and the positioning block is inserted into the mounting groove.

[0016] Furthermore, a plurality of locking grooves are arranged at equal intervals in a circumferential array on the edge of the connecting disc, and the locking grooves are inserted with the nuts on the right side of the mounting disc.

[0017] Furthermore, a sealing gasket for enhancing the sealing property is arranged between the mounting disc and the mounting block.

[0018] Compared with the prior art, the beneficial effects of the present utility model are:

[0019] Protect the probe of the sensor through a sleeve; then quickly fix the connection plate on the right side of the mounting plate through the quick-installation component to complete the preliminary installation. Subsequently, fasten and install the connection plate on the right side of the mounting plate through the installation component to prevent the connection plate from moving during installation and make the installation more convenient and firm; limit the installation component on the mounting plate through the connection plate to prevent the installation component on the mounting plate from loosening and causing the mounting plate to loosen, thereby improving the stability of the installation. Brief Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 Three-dimensional view of an installation structure of an in-built partial discharge sensor of the present invention Figure 1 ;

[0022] Figure 2 Front view of an installation structure of an in-built partial discharge sensor of the present invention;

[0023] Figure 3 Front sectional view of an installation structure of an in-built partial discharge sensor of the present invention;

[0024] Figure 4 Three-dimensional view of an installation structure of an in-built partial discharge sensor of the present invention Figure 2 ;

[0025] Figure 5 Three-dimensional view of an installation structure of an in-built partial discharge sensor of the present invention after removing the fixing block;

[0026] Figure 6 Schematic diagram of the locking block and its connection structure.

[0027] The reference numerals in the drawings respectively represent:

[0028] 1. Fixed block; 2. Mounting disc; 21. Inner groove; 22. Insulating disc; 23. Outer groove; 24. Support groove; 3. Mounting block; 31. Sleeve; 32. Ring-shaped insertion block; 33. Positioning block; 4. Sensor; 5. Protective cover; 51. Wiring sleeve; 52. Connection disc; 521. Locking groove; 53. Protrusion; 6. Mounting mechanism; 61. Mounting component; 611. Support block; 612. Accommodating groove; 613. Mounting groove; 614. Mounting hole; 62. Quick-installation component; 621. Insertion hole; 622. Locking insertion block; 623. Locking block; 624. Guide surface; 7. Gasket. Detailed implementation manners

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0030] The "left", "right", "front", "rear", "upper" and "lower" mentioned in the following description are oriented in the perspective direction of the front view.

[0031] Embodiment 1

[0032] In some embodiments, please refer to the accompanying drawings of the specification Figures 1-4 , an internal partial discharge sensor mounting structure, including a mounting disc 2, a mounting block 3, a protective cover 5 and a fixed block 1 fixedly installed on a transformer;

[0033] The mounting block 3, the sensor 4, the mounting disc 2 and the protective cover 5 are sequentially arranged on the right side of the fixed block 1; an inner groove 21 is formed in the middle of the left side of the mounting disc 2, and an insulating disc 22 is fixedly installed on the right side of the inner groove 21; an insulating sleeve 31 is fixedly installed on the left side of the mounting block 3; a sensor 4 is fixedly installed in the middle of the left side of the insulating disc 22; a wiring sleeve 51 is fixedly installed at the bottom of the protective cover 5, and a connection disc 52 is fixedly installed at the edge of the protective cover 5; a ring-shaped protrusion 53 is fixedly installed in the middle of the left side of the connection disc 52;

[0034] A mounting mechanism 6 is installed on the fixed block 1, the mounting disc 2, the mounting block 3 and the connection disc 52. The mounting mechanism 6 includes a mounting component 61 and a quick-installation component 62. The mounting component 61 is installed on the fixed block 1, the mounting disc 2, the mounting block 3 and the connection disc 52, and the quick-installation component 62 is installed on the mounting disc 2 and the connection disc 52; the mounting disc 2 and the mounting block 3 are installed on the fixed block 1 through the mounting component 61, and the connection disc 52 is installed on the right side of the mounting disc 2 through the mounting component 61 and the quick-installation component 62.

[0035] In this embodiment, when the built-in partial discharge sensor installation structure works normally, the mounting block 3 is fixedly installed on the middle right side of the fixed block 1 through the mounting component 61. Subsequently, the inner groove 21 of the mounting disc 2 is aligned with the mounting block 3, and the mounting disc 2 is fixedly installed on the outer right side of the fixed block 1 through the mounting component 61. During this process, the detection head of the sensor 4 on the insulating disc 22 in the middle of the mounting disc 2 faces left, and the sleeve 31 covers the outside of the probe of the sensor 4 to protect the probe of the sensor 4 through the sleeve 31. Subsequently, the connecting disc 52 is quickly fixed on the right side of the mounting disc 2 through the quick mounting component 62 to complete the preliminary installation. Then, the connecting disc 52 is firmly installed on the right side of the mounting disc 2 through the mounting component 61 to prevent the connecting disc 52 from moving during installation and make the installation more convenient and firm. The mounting component 61 on the mounting disc 2 is limited by the connecting disc 52 to prevent the mounting component 61 on the mounting disc 2 from loosening and causing the mounting disc 2 to loosen.

[0036] Embodiment Two

[0037] In some embodiments, as Figures 1-6 shown, as a preferred embodiment of the present utility model, the mounting component 61 includes a support block 611, a receiving groove 612, and a mounting groove 613. The support block 611 is fixedly installed on the right edge of the fixed block 1. A receiving groove 612 for receiving the mounting block 3 is formed in the middle right side of the fixed block 1, and a mounting groove 613 is formed in the inner edge of the receiving groove 612.

[0038] Mounting holes 614 are respectively formed at equal intervals in a circumferential array on the edges of the support block 611, the mounting disc 2, the mounting block 3, the connecting disc 52, and the bottom edge of the receiving groove 612. The mounting holes 614 on the outer circle of the mounting disc 2 are aligned with the mounting holes 614 on the support block 611, and the mounting disc 2 is installed on the right side of the fixed block 1 through the mounting holes 614 and the matching screws and nuts. The mounting holes 614 on the mounting block 3 are aligned with the mounting holes 614 on the receiving groove 612, and the mounting block 3 is installed between the mounting disc 2 and the fixed block 1 through the mounting holes 614 and the matching screws and nuts. The mounting holes 614 on the edge of the connecting disc 52 are aligned with the mounting holes 614 on the inner circle of the mounting disc 2, and the connecting disc 52 is installed on the right side of the mounting disc 2 through the mounting holes 614 and the matching nuts and screws.

[0039] The quick installation component 62 includes a jack 621, a locking plug 622, a locking block 623 and a guiding surface 624. The jacks 621 are arranged at equal intervals in a circumferential array on the connecting disk 52. The locking plugs 622 are fixedly installed at equal intervals in a circumferential array on the right side of the mounting disk 2. The locking block 623 is rotatably installed in the middle of the outer end of the locking plug 622, and the size of the locking block 623 is the same as that of the locking plug 622; a guiding surface 624 is also provided on the left side of the locking block 623; the locking block 623 fits and slides on the right side wall of the connecting disk 52 through the guiding surface 624; the jack 621 is inserted into the locking plug 622 and the locking block 623.

[0040] An outer groove 23 is formed at the left edge of the mounting disk 2, and the outer groove 23 is inserted into the support block 611; a support groove 24 is formed in the middle of the right side of the mounting disk 2; the support groove 24 is inserted into the convex block 53.

[0041] An insulating annular plug 32 is fixedly installed on the right side of the mounting block 3, and the annular plug 32 is inserted into the inner groove 21 and abuts against the insulating disk 22; a positioning block 33 is fixedly installed on the outer edge of the left side of the mounting block 3, and the positioning block 33 is inserted into the mounting groove 613.

[0042] A plurality of locking grooves 521 are arranged at equal intervals in a circumferential array on the edge of the connecting disk 52, and the locking grooves 521 are inserted into the nuts on the right side of the mounting disk 2.

[0043] A gasket 7 for enhancing the sealing performance is provided between the mounting disk 2 and the mounting block 3.

[0044] In this embodiment, when the mounting disk 2, the mounting block 3, the protective cover 5 and the mounting mechanism 6 are working properly, the positioning block 33 is inserted into the mounting groove 613, and the outer groove 23 is inserted into the support block 611. The mounting block 3 is supported by the positioning block 33 and the mounting groove 613, and the mounting disk 2 is supported by the outer groove 23 and the support block 611, making the installation more stable. At the same time, the annular insert block 32 is inserted into the inner groove 21, and an insulating protective layer is formed by the sleeve 31, the annular insert block 32 and the insulating disk 22 on the right side of the inner groove 21, improving the safety and stability of the device. The sealing gasket 7 makes the fit between the mounting disk 2 and the mounting block 3 closer, improving the sealing performance. The locking groove 521 limits the nut on the right side of the mounting disk 2 to prevent the nut from moving and backing off the thread. The mounting disk 2 and the mounting block 3 are installed and fastened through the mounting hole 614 and the matching screw and nut. After aligning the jack 621 with the locking insert block 622 and the locking block 623, the locking insert block 622 and the locking block 623 are inserted into the jack 621, and the connecting disk 52 is installed on the right side of the mounting disk 2. The locking block 623 is rotated, and the connecting disk 52 is pressed leftward through the guiding surface 624 until the locking block 623 is perpendicular to the locking insert block 622, thus realizing the quick installation of the connecting disk 52 on the right side of the mounting disk 2. Subsequently, the connecting disk 52 is fastened through the mounting hole 614 and the matching nut and screw to prevent the connecting disk 52 from moving during fastening.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An internal partial discharge sensor installation structure, comprising a mounting plate (2), a mounting block (3), a protective cover (5), and a fixing block (1) fixedly installed on a transformer, characterized in that: The mounting block (3), the sensor (4), the mounting plate (2), and the protective cover (5) are sequentially arranged on the right side of the fixing block (1); a inner groove (21) is formed in the middle of the left side of the mounting plate (2), and an insulating plate (22) is fixedly installed on the right side of the inner groove (21); an insulating sleeve (31) is fixedly installed on the left side of the mounting block (3); the sensor (4) is fixedly installed in the middle of the left side of the insulating plate (22); a wiring sleeve (51) is fixedly installed at the bottom of the protective cover (5), and a connecting plate (52) is fixedly installed at the edge of the protective cover (5); a circular convex block (53) is fixedly installed in the middle of the left side of the connecting plate (52). An installation mechanism (6) is installed on the fixing block (1), the mounting plate (2), the mounting block (3), and the connecting plate (52). The installation mechanism (6) includes an installation component (61) and a quick installation component (62). The installation component (61) is installed on the fixing block (1), the mounting plate (2), the mounting block (3), and the connecting plate (52), and the quick installation component (62) is installed on the mounting plate (2) and the connecting plate (52); the mounting plate (2) and the mounting block (3) are installed on the fixing block (1) through the installation component (61), and the connecting plate (52) is installed on the right side of the mounting plate (2) through the installation component (61) and the quick installation component (62).

2. The built-in partial discharge sensor mounting structure according to claim 1, characterized in that, The installation component (61) includes a support block (611), a receiving groove (612), and an installation groove (613). The support block (611) is fixedly installed on the right edge of the fixing block (1), and a receiving groove (612) for receiving the mounting block (3) is formed in the middle of the right side of the fixing block (1), and an installation groove (613) is formed in the inner edge of the receiving groove (612).

3. The built-in partial discharge sensor mounting structure according to claim 2, characterized in that, Mounting holes (614) are respectively formed at equal intervals in a circumferential array on the edges of the support block (611), the mounting plate (2), the mounting block (3), the connecting plate (52), and the bottom edge of the receiving groove (612); the mounting holes (614) on the outer circle of the mounting plate (2) are aligned with the mounting holes (614) on the support block (611), and the mounting plate (2) is installed on the right side of the fixing block (1) through the mounting holes (614) and the matching screws and nuts; the mounting holes (614) on the mounting block (3) are aligned with the mounting holes (614) on the receiving groove (612), and the mounting block (3) is installed between the mounting plate (2) and the fixing block (1) through the mounting holes (614) and the matching screws and nuts; the mounting holes (614) on the edge of the connecting plate (52) are aligned with the mounting holes (614) on the inner circle of the mounting plate (2), and the connecting plate (52) is installed on the right side of the mounting plate (2) through the mounting holes (614) and the matching nuts and screws.

4. The built-in partial discharge sensor mounting structure according to claim 3, characterized in that, The quick - installation component (62) includes a jack (621), a locking plug (622), a locking block (623) and a guiding surface (624). The jacks (621) are arranged at equal intervals in a circumferential array on the connecting disk (52). The locking plugs (622) are fixedly installed at equal intervals in a circumferential array on the right side of the mounting disk (2). A locking block (623) is rotatably installed in the middle of the outer end of the locking plug (622), and the size of the locking block (623) is the same as that of the locking plug (622); a guiding surface (624) is also provided on the left side of the locking block (623); the locking block (623) fits and slides on the right - hand side wall of the connecting disk (52) through the guiding surface (624); the jack (621) is inserted into the locking plug (622) and the locking block (623).

5. The built-in partial discharge sensor installation structure according to claim 4, characterized in that, An outer groove (23) is formed at the left - hand edge of the mounting disk (2), and the outer groove (23) is inserted into the support block (611); a support groove (24) is formed in the middle of the right side of the mounting disk (2); the support groove (24) is inserted into the convex block (53).

6. The built-in partial discharge sensor installation structure according to claim 5, characterized in that, An insulating annular plug (32) is fixedly installed on the right side of the mounting block (3), and the annular plug (32) is inserted into the inner groove (21) and abuts against the insulating disk (22); a positioning block (33) is fixedly installed on the outer edge of the left side of the mounting block (3), and the positioning block (33) is inserted into the mounting groove (613).

7. The built-in partial discharge sensor installation structure according to claim 6, characterized in that A plurality of locking grooves (521) are arranged at equal intervals in a circumferential array at the edge of the connecting disk (52), and the locking grooves (521) are inserted into the nuts on the right side of the mounting disk (2).

8. The built-in partial discharge sensor mounting structure according to claim 7, characterized in that, A gasket (7) for enhancing the sealing performance is provided between the mounting disk (2) and the mounting block (3).

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