A zero-flux current transformer installation device

Abstract

This invention relates to the field of zero-flux current transformer technology and discloses a zero-flux current transformer installation device, including a shielded protection base. A positioning mechanism is fixedly connected to the top of the shielded protection base, and an installation mechanism is fixedly connected to the top of the positioning mechanism. A heat dissipation mechanism is fixedly connected to the bottom of the shielded protection base. The locking assembly includes a T-shaped block disposed on the top of the shielded protection base. A long slide bar is slidably connected inside the T-shaped block, and a rectangular strip is fixedly connected to one end of the long slide bar. This zero-flux current transformer installation device, through the installation mechanism, can fix the transformer device inside the shielded protection base, thereby providing shielding protection for the inside of the transformer device and preventing electromagnetic interference when the transformer device is used with other devices. This makes the operation of the transformer device more stable, and the installation is convenient, quick, and easy to operate.

Description

Technical Field

[0001] This invention relates to the field of zero flux current transformer technology, specifically to a zero flux current transformer installation device. Background Technology

[0002] A zero-flux current transformer is a type of current transformer that utilizes the principles of saturated magnetic field and zero flux to measure current in a zero-flux state through magnetic coupling between the secondary and primary windings. It provides electronic current transformers for measuring instruments, meters, and control and protection systems. However, it generates significant electromagnetic interference during operation, which can severely impact the circuitry of equipment. Excessive zero-sequence current can damage electrical equipment. Therefore, zero-flux current transformers require appropriate shielding protection devices to ensure their proper operation.

[0003] According to the zero-flux current transformer disclosed in announcement number CN 114089011 B, it includes two independent secondary windings, an iron core within the secondary windings for generating magnetic flux, and a detection circuit connected to the two secondary windings. Rectifier diodes D1 and D2 are connected in series in the same direction between two corresponding terminals of the two secondary windings, and rectifier diodes D3 and D4 are connected in series in the same direction between the other two corresponding terminals of the two secondary windings.

[0004] While the zero-flux current transformer boasts advantages such as high accuracy in measuring primary current, simple structure, stable performance, low manufacturing requirements, and low price, its lack of shielding protection at the bottom during use may cause electromagnetic interference when used with other equipment. Therefore, it is necessary to design an installation device for shielding and protecting the zero-flux current transformer. Summary of the Invention

[0005] The purpose of this invention is to provide a zero-flux current transformer installation device to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a zero flux current transformer installation device, comprising a shielded protection base, characterized in that: a positioning mechanism is fixedly connected to the top of the shielded protection base, and an installation mechanism is fixedly connected to the top of the positioning mechanism;

[0007] The installation mechanism includes a snap-fit ​​assembly, which includes four threaded sleeves. The four threaded sleeves are respectively disposed at the left and right ends of the top of the shielding protection base. A dial is fixedly connected to one end of the surface of the threaded sleeve. A threaded rod is threadedly connected inside the threaded sleeve. A T-shaped bar is rotatably connected to the surface of the T-shaped bar. A hinge bar is rotatably connected to the top of the T-shaped bar. A T-shaped slide rod is hinged to the inner side of the hinge bar. A vertical bar is fixedly connected to one end of the T-shaped slide rod. A locking rod is fixedly connected to one end of the vertical bar.

[0008] According to the above technical solution, there are four threaded sleeves, and two adjacent threaded sleeves are distributed on the front and rear sides of the clamping rod, so that the clamping rod can be driven to be installed and locked by simultaneously operating one of the threaded sleeves.

[0009] According to the above technical solution, the installation mechanism includes a limiting component, which includes two T-shaped seats. The two T-shaped seats are respectively fixedly connected to the left and right ends of the top of the shielding protection base. A hollow seat is fixedly connected to the top of the T-shaped seat, and a spur rack is fixedly connected to the top of the hollow seat. A spur gear is meshed with the surface of the spur rack. A limiting block is provided inside the T-shaped seat. Threaded sleeves are provided on the front and rear sides of the T-shaped seat, and one end of the surface of each of the two threaded sleeves is rotatably connected to the front and rear sides of the T-shaped seat.

[0010] According to the above technical solution, T-shaped circular openings are provided at both ends of the T-shaped seat, the surface of the T-shaped circular bar is slidably connected to the inside of the T-shaped circular opening, a sliding cavity is provided in the middle of the T-shaped circular opening, the limiting block is slidably connected to the inside of the sliding cavity, a rectangular hole is provided at the left end of the T-shaped seat, and the surface of the clamping rod is slidably connected to the inside of the rectangular hole.

[0011] According to the above technical solution, the positioning mechanism includes a square frame, which is fixedly connected to the top of the shielding protection base. A rotating shaft is rotatably connected inside the square frame. A movable rod is fixedly connected to one end of the rotating shaft. A positioning disk is fixedly connected to the front of the square frame. A T-shaped handle is fixedly connected to one end of the rotating shaft. A second spring is fixedly connected to one end of the T-shaped handle. A T-shaped shaft is fixedly connected to one end of the second spring. A first spring is fixedly connected inside the rotating shaft. A support rod is fixedly connected to one end of the first spring. A circular block is fixedly connected to the surface of the support rod. A retaining frame strip is fixedly connected inside the square frame. A current transformer device is provided on the top of the retaining frame strip.

[0012] According to the above technical solution, a card hole is opened inside the left end of the card frame strip, and the surface of the strip matches the inside of the card hole.

[0013] According to the above technical solution, a positioning hole is opened inside the positioning disk, one end of the surface of the T-shaped shaft matches the inside of the positioning hole, a round hole is opened inside one end of the T-shaped handle, and the surface of the T-shaped shaft passes through the round hole opened inside one end of the T-shaped handle.

[0014] According to the above technical solution, a limiting groove is formed inside one end of the rotating shaft, one end of the surface of the support rod is slidably connected to the inside of the limiting groove, the surface of the movable rod is fixedly connected to the outside of the limiting groove formed on the rotating shaft, and the first spring is located inside the limiting groove.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0016] 1. This zero-flux current transformer mounting device, through its mounting mechanism, rotates a dial wheel to rotate a threaded rod, which in turn moves the threaded rod, causing the T-shaped circular strip to slide within the T-shaped circular opening inside the T-shaped seat. Simultaneously, the rotation of the hinge strip moves the T-shaped sliding rod and the vertical strip, allowing the locking rod to engage with one end of the locking frame strip. This secures the transformer within the shielded protection base, providing internal shielding protection and preventing electromagnetic interference when the transformer is used with other equipment. This results in more stable operation of the transformer and is convenient, quick, and easy to operate.

[0017] 2. The zero flux current transformer installation device, through the set installation mechanism, uses the limiting block to slide under the limit inside the T-shaped seat, thereby making the installation and fixation of the transformer equipment more stable. In addition, when moving the clamping rod into the clamping frame strip, the spur gear, when moving, meshes with the hollow seat, which makes the clamping rod easier to clamp and makes the installation operation more convenient.

[0018] 3. The zero flux current transformer installation device, through the positioning mechanism, pulls open the T-shaped shaft and, after overcoming the elastic force of the second spring, the T-shaped shaft disengages from the locking action inside the positioning plate. Then, the T-shaped handle can be rotated, and the rotating shaft is driven to rotate under the limiting action of the support rod. This causes the square frame to rotate, which in turn causes the frame strip and the transformer device to rotate, and correspondingly causes the transformer device to adjust its angle, thereby improving the ease of use of the transformer device.

[0019] 4. The zero flux current transformer installation device uses a heat dissipation mechanism to pull the T-shaped rod outward. After the T-shaped rod is moved out of the fixed frame, the limiting effect of the square plate can be released. Then the filter frame can be flipped over for cleaning, thus facilitating cleaning and ensuring the heat dissipation and ventilation effect of the device. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a three-dimensional view of the structure of the present invention;

[0022] Figure 2 This is a three-dimensional exploded view of the structural positioning component of the present invention;

[0023] Figure 3 This is a three-dimensional exploded view of the structural positioning component parts of the present invention;

[0024] Figure 4 This is a three-dimensional cross-sectional view of the structural operating component of the present invention;

[0025] Figure 5 This is a three-dimensional exploded view of the structural positioning mechanism of the present invention;

[0026] Figure 6 This is a three-dimensional exploded view of the structural positioning mechanism parts of the present invention;

[0027] Figure 7 This is a three-dimensional exploded view of the heat dissipation mechanism of the present invention;

[0028] Figure 8 This is a perspective view of the shielding and protective base of the present invention.

[0029] In the diagram: 1. Shielding and protective base; 2. Mounting mechanism; 21. Snap-fit ​​assembly; 211. Threaded sleeve; 212. Dial wheel; 213. Threaded rod; 214. T-shaped round bar; 215. Hinge bar; 216. T-shaped slide bar; 217. Vertical bar; 218. Locking rod; 22. Limiting assembly; 221. T-shaped seat; 222. Hollow seat; 223. Spur rack; 224. Spur gear; 225. Limiting block; 3. Positioning mechanism; 31. Square Frame; 32. Rotating shaft; 33. Movable rod; 34. Positioning plate; 35. T-shaped handle; 351. First spring; 36. Circular block; 361. Support rod; 362. Second spring; 37. T-shaped shaft; 38. Frame retaining strip; 39. Current transformer equipment; 4. Heat dissipation mechanism; 41. Fixed frame; 42. Support shaft; 43. Square plate; 44. Filter frame; 45. Third spring; 46. T-shaped rod; 47. Fan plate; 48. Fan equipment. Detailed Implementation

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0031] This invention provides the following technical solutions:

[0032] Example 1

[0033] Combination Figures 1 to 8 A zero flux current transformer installation device includes a shielded protection base 1, a positioning mechanism 3 fixedly connected to the top of the shielded protection base 1, and an installation mechanism 2 fixedly connected to the top of the positioning mechanism 3.

[0034] The mounting mechanism 2 includes a snap-fit ​​assembly 21, which includes four threaded sleeves 211. The four threaded sleeves 211 are respectively located at the top left and right ends of the shielding protection base 1. A dial 212 is fixedly connected to one end of the surface of each threaded sleeve 211. A threaded rod 213 is threadedly connected inside the threaded sleeve 211. A T-shaped round bar 214 is rotatably connected to the surface of the T-shaped round bar 214. A hinge bar 215 is rotatably connected to the top of the T-shaped round bar 214. A T-shaped slide bar 216 is hinged to the inner side of the hinge bar 215. A vertical bar 217 is fixedly connected to one end of the T-shaped slide bar 216. A locking rod 218 is fixedly connected to one end of the vertical bar 217. There are four threaded sleeves 211, and adjacent two... The threaded sleeves 211 are distributed in a group on the front and rear sides of the clamp 218. The installation mechanism 2 includes a limiting component 22, which includes a T-shaped seat 221. There are two T-shaped seats 221, which are fixedly connected to the top left and right ends of the shielding and protection base 1 respectively. A hollow seat 222 is fixedly connected to the top of the T-shaped seat 221. A rack 223 is fixedly connected to the top of the hollow seat 222. A spur gear 224 is meshed on the surface of the rack 223. A limiting block 225 is provided inside the T-shaped seat 221. Threaded sleeves 211 are provided on the front and rear sides of the T-shaped seat 221 respectively. One end of the surface of the two threaded sleeves 211 is rotatably connected to the front and rear sides of the T-shaped seat 221 respectively.

[0035] Furthermore, T-shaped circular openings are provided at both ends of the T-shaped seat 221, the surface of the T-shaped circular bar 214 is slidably connected to the inside of the T-shaped circular opening, a sliding cavity is provided in the middle of the T-shaped circular opening, the limiting block 225 is slidably connected to the inside of the sliding cavity, a rectangular hole is provided at the left end of the T-shaped seat 221, and the surface of the locking rod 218 is slidably connected to the inside of the rectangular hole.

[0036] Example 2

[0037] See Figure 1-8Furthermore, based on Embodiment 1, the positioning mechanism 3 further includes a square frame 31, which is fixedly connected to the top of the shielding protection base 1. A rotating shaft 32 is rotatably connected inside the square frame 31. A movable rod 33 is fixedly connected to one end of the surface of the rotating shaft 32. A positioning disk 34 is fixedly connected to the front of the square frame 31. A T-shaped handle 35 is fixedly connected to one end of the rotating shaft 32. A second spring 362 is fixedly connected to one end of the front of the T-shaped handle 35. A T-shaped shaft 37 is fixedly connected to one end of the second spring 362. A first spring 351 is fixedly connected inside the rotating shaft 32. A support rod 361 is fixedly connected to one end of the first spring 351. A ring block 36 is fixedly connected to the surface of the support rod 361. A frame strip 38 is fixedly connected inside the square frame 31. A current transformer device 39 is provided on the top of the frame strip 38. A locking hole is opened inside the left end of the frame strip 38.

[0038] Furthermore, a positioning hole is opened inside the positioning disk 34, one end of the surface of the T-shaped shaft 37 matches the inside of the positioning hole, a round hole is opened inside one end of the T-shaped handle 35, and the surface of the T-shaped shaft 37 passes through the round hole opened inside one end of the T-shaped handle 35. A limit groove is opened inside one end of the rotating shaft 32, one end of the surface of the support rod 361 is slidably connected to the inside of the limit groove, and the surface of the movable rod 33 is fixedly connected to the outside of the limit groove opened in the rotating shaft 32. The first spring 351 is located inside the limit groove. After pulling the T-shaped shaft 37 and overcoming the elastic force of the second spring 362, the T-shaped shaft 37 is disengaged from the locking action inside the positioning disk 34. Then, the T-shaped handle 35 can be rotated, and the rotating shaft 32 is driven to rotate under the limiting action of the support rod 361. This causes the square frame 31 to rotate, which in turn causes the frame strip 38 and the current transformer device 39 to rotate, and the current transformer device 39 to be adjusted in angle accordingly, thereby improving the ease of use of the current transformer device 39.

[0039] Example 3

[0040] See Figure 1-8 Furthermore, based on Embodiment 1, the heat dissipation mechanism 4 further includes a fixed frame 41, which is fixedly connected to the bottom of the shielding protection base 1. A support shaft 42 is rotatably connected to the left end of the fixed frame 41. A square plate 43 is fixedly connected to the surface of the support shaft 42. A filter frame 44 is fixedly connected inside the square plate 43. A third spring 45 is fixedly connected to the front of the fixed frame 41. A T-shaped rod 46 is fixedly connected to one end of the front of the third spring 45. A fan plate 47 is fixedly connected to the bottom of the square frame 31. A fan device 48 is fixedly connected inside the fan plate 47.

[0041] Furthermore, an insertion hole is provided inside one end of the fixed frame 41, and the surface of the T-shaped rod 46 is inserted into the insertion hole. The T-shaped rod 46 is pulled outward, and after the T-shaped rod 46 is moved out of the fixed frame 41, the limiting effect of the square plate 43 is released. Then the filter frame 44 can be flipped over, and the filter frame 44 can be cleaned accordingly, so as to facilitate the cleaning of the filter frame 44 and ensure the heat dissipation and ventilation effect of the device.

[0042] In actual operation, when this device is used and the current transformer device 39 is installed for shielding protection, the retaining frame strip 38 on the current transformer device 39 is installed on the shielding protection base 1. Rotating the dial wheel 212 drives the threaded rod 213 to rotate, which in turn drives the threaded rod 213 to move. When the threaded rod 213 moves, it drives the T-shaped round strip 214 to slide in the T-shaped round opening inside the T-shaped seat 221. At the same time, when the hinge strip 215 rotates, it can drive the T-shaped sliding rod 216 and the vertical strip 217 to move, so that the retaining rod 218 can be inserted into one end of the retaining frame strip 38. This can fix the current transformer device 39 inside the shielding protection base 1, thereby providing shielding protection for the inside of the current transformer device 39 and preventing the current transformer device 39 from causing electromagnetic interference when used with other devices. This makes the operation of the current transformer device 39 more stable, and the installation is convenient, quick and easy to operate.

[0043] Furthermore, during the installation of the equipment, when the clamping rod 218 slides, it slides under the limitation of the limiting block 225 inside the T-shaped seat 221, thereby making the installation and fixation of the current transformer equipment 39 more stable. In addition, when the clamping rod 218 is moved into the clamping frame strip 38, the engagement of the spur gear 224 with the hollow seat 222 during movement can make the clamping rod 218 more easily and make the installation operation more convenient.

[0044] During the subsequent use of the current transformer device 39, when it is necessary to adjust the angle of the current transformer device 39, pulling the T-shaped handle 35 will cause the support rod 361 to move under the limiting action of the inner end of the rotating shaft 32 and the ring block 36, overcoming the elastic force of the first spring 351. At the same time, the T-shaped shaft 37 will move after overcoming the elastic force of the second spring 362 during the movement. Then, the T-shaped handle 35 can be rotated, and the rotating shaft 32 will rotate under the limiting action of the support rod 361. This will cause the square frame 31 to rotate, which in turn causes the frame strip 38 and the current transformer device 39 to rotate, and the current transformer device 39 will be adjusted accordingly, thereby improving the ease of use of the current transformer device 39.

[0045] When the device is in use and heat dissipation is required, the fan 48 is used to blow air for heat dissipation. When it is necessary to clean the dust from the filter frame 44, the T-shaped rod 46 is pulled outward. After the T-shaped rod 46 is moved outside the fixed frame 41, the limiting effect of the square plate 43 is released. Then the filter frame 44 can be flipped over and cleaned accordingly, which facilitates the cleaning of the filter frame 44 and ensures the heat dissipation and ventilation effect of the device.

[0046] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A zero-flux current transformer mounting device, comprising a shielded protective base (1), characterized in that: The top of the shielding base (1) is fixedly connected to a positioning mechanism (3), and the top of the positioning mechanism (3) is fixedly connected to an installation mechanism (2). The installation mechanism (2) includes a buckle assembly (21), which includes a threaded sleeve (211). There are four threaded sleeves (211), which are respectively located at the top left and right ends of the shielding protection base (1). A dial wheel (212) is fixedly connected to one end of the surface of the threaded sleeve (211). A threaded rod (213) is threadedly connected inside the threaded sleeve (211). A T-shaped round bar (214) is rotatably connected to the surface of the threaded rod (213). A hinge bar (215) is rotatably connected to the top of the T-shaped round bar (214). A T-shaped slide bar (216) is hinged to the inner side of the hinge bar (215). A vertical bar (217) is fixedly connected to one end of the T-shaped slide bar (216). A locking rod (218) is fixedly connected to one end of the vertical bar (217). The installation mechanism (2) includes a limiting component (22), which includes a T-shaped seat (221). There are two T-shaped seats (221), which are fixedly connected to the top left and right ends of the shielding protection base (1). A hollow seat (222) is fixedly connected to the top of the T-shaped seat (221), and a rack (223) is fixedly connected to the top of the hollow seat (222). A spur gear (224) is meshed with the surface of the rack (223). A limiting block (225) is provided inside the T-shaped seat (221). Threaded sleeves (211) are provided on the front and rear sides of the T-shaped seat (221). One end of the surface of the two threaded sleeves (211) is rotatably connected to the front and rear sides of the T-shaped seat (221).

2. The zero-flux current transformer installation device according to claim 1, characterized in that: There are four threaded sleeves (211), and two adjacent threaded sleeves (211) are distributed in a group on the front and rear sides of the caliper (218).

3. The zero-flux current transformer installation device according to claim 1, characterized in that: The T-shaped seat (221) has T-shaped circular openings at both ends. The surface of the T-shaped circular bar (214) is slidably connected to the inside of the T-shaped circular opening. A sliding cavity is opened in the middle of the T-shaped circular opening. The limiting block (225) is slidably connected to the inside of the sliding cavity. A rectangular hole is opened at the left end of the T-shaped seat (221). The surface of the clamping rod (218) is slidably connected to the inside of the rectangular hole.

4. The zero-flux current transformer installation device according to claim 3, characterized in that: The positioning mechanism (3) includes a square frame (31), which is fixedly connected to the top of the shielding protection base (1). A rotating shaft (32) is rotatably connected inside the square frame (31). A movable rod (33) is fixedly connected to one end of the rotating shaft (32). A positioning disk (34) is fixedly connected to the front of the square frame (31). A T-shaped handle (35) is fixedly connected to one end of the rotating shaft (32). A second spring (362) is fixedly connected to one end of the front of the T-shaped handle (35). A T-shaped shaft (37) is fixedly connected to one end of the second spring (362). A first spring (351) is fixedly connected inside the rotating shaft (32). A support rod (361) is fixedly connected to one end of the first spring (351). A ring block (36) is fixedly connected to the surface of the support rod (361). A frame clip (38) is provided inside the square frame (31). A current transformer device (39) is fixedly connected to the top of the frame clip (38).

5. The zero-flux current transformer installation device according to claim 4, characterized in that: The card frame strip (38) has a card hole inside the left end, and the surface of the card rod (218) matches the inside of the card hole.

6. The zero-flux current transformer installation device according to claim 5, characterized in that: The positioning disk (34) has a positioning hole inside, one end of the surface of the T-shaped shaft (37) matches the inside of the positioning hole, one end of the T-shaped handle (35) has a round hole inside, and the surface of the T-shaped shaft (37) passes through the round hole inside one end of the T-shaped handle (35).

7. The zero-flux current transformer installation device according to claim 6, characterized in that: A limiting groove is provided inside one end of the rotating shaft (32), one end of the surface of the support rod (361) is slidably connected to the inside of the limiting groove, the surface of the movable rod (33) is fixedly connected to the outside of the limiting groove provided by the rotating shaft (32), and the first spring (351) is located inside the limiting groove.

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