Zero-flux current transformer installation device

Abstract

The invention relates to the technical field of zero-flux current transformers, and discloses a zero-flux current transformer mounting device which comprises a shielding protection base, a positioning mechanism is fixedly connected to the top of the shielding protection base, a mounting mechanism is fixedly connected to the top of the positioning mechanism, and a heat dissipation mechanism is fixedly connected to the bottom end of the shielding protection base. The clamping assembly comprises a T-shaped block, the T-shaped block is arranged at the top of the shielding protection base, a long sliding strip is slidably connected into the T-shaped block, and one end of the long sliding strip is fixedly connected with a rectangular strip. According to the zero-flux current transformer mounting device, through the arrangement of the mounting mechanism, transformer equipment can be fixed in the shielding protection base, so that the shielding protection effect on the interior of the transformer equipment can be achieved, and certain electromagnetic interference caused when the transformer equipment is used with other equipment is avoided; furthermore, the mutual inductor equipment is more stable in work, convenient and rapid to install and easy to operate.

Description

Technical Field

[0001] The invention relates to the technical field of zero-flux current transformers, in particular to a zero-flux current transformer installation device. Background Art

[0002] A zero-flux current transformer is a current transformer that uses the saturated magnetic field and zero-flux principles to measure current under zero-flux conditions through magnetic coupling between the secondary winding and the primary winding. It also provides an electronic current transformer for measuring instruments, meters, and control protection systems. In addition, it will generate large electromagnetic interference during operation, which may have a serious impact on the circuit system of the equipment. If the zero-sequence current is too large, it may cause damage to electrical equipment. Therefore, the zero-flux current transformer needs to be installed with a corresponding shielding protection device to protect the normal use of the internal zero-flux current transformer.

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

[0004] Although the zero-flux current transformer has the characteristics of high accuracy in measuring primary current, simple structure, stable performance, low manufacturing process requirements and low price when used accordingly, when it is used, due to the lack of corresponding shielding protection device at the bottom of the device when the zero-flux current transformer is in use, it may cause certain electromagnetic interference when used with other devices. Therefore, it is necessary to design an installation device for shielding protection of the zero-flux current transformer. Summary of the invention

[0005] The object of the present invention is to provide a zero-flux current transformer installation device to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a zero-flux current transformer installation device, comprising a shielding protection base, characterized in that: a positioning mechanism is fixedly connected to the top of the shielding protection base, and a mounting mechanism is fixedly connected to the top of the positioning mechanism; The mounting mechanism includes a buckle assembly, which includes a threaded sleeve. There are four threaded sleeves, which are respectively arranged at the left and right ends of the top of the shielding protection base. One end of the threaded sleeve surface is fixedly connected to a dial wheel, and the inner thread of the threaded sleeve is connected to a threaded rod. The surface of the T-shaped round bar is rotatably connected to the T-shaped round bar, and the top of the T-shaped round bar is rotatably connected to a hinged bar, and a T-shaped sliding rod is hinged on the inner side of the hinged bar, one end of the T-shaped sliding rod is fixedly connected to a vertical bar, and one end of the vertical bar is fixedly connected to a clamping rod.

[0007] According to the above technical solution, there are four threaded sleeves, and two adjacent threaded sleeves are distributed as a group on the front and rear sides of the clamping rod, so that one of the threaded sleeves can be controlled at the same time to drive the clamping rod to install and lock.

[0008] According to the above technical solution, the mounting mechanism includes a limit assembly, and the limit assembly includes a T-shaped seat. There are two T-shaped seats, and the two T-shaped seats are respectively fixedly connected to the left and right ends of the top of the shielding protection base. The top of the T-shaped seat is fixedly connected to a hollow seat, and the top of the hollow seat is fixedly connected to a spur rack. The surface of the spur rack is meshed with a spur gear. A limit block is arranged inside the T-shaped seat, and threaded sleeves are respectively arranged on the front and rear sides of the T-shaped seat, and one end of the surface of the two threaded sleeves is rotatably connected to the front and rear sides of the T-shaped seat.

[0009] According to the above technical solution, T-shaped circular openings are opened at the front and rear ends of the T-shaped seat, the surface of the T-shaped round bar 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 limit block is slidably connected to the inside of the sliding cavity, a rectangular hole is opened 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.

[0010] 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 the surface of the rotating shaft near one end, a positioning plate 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 the front end of the T-shaped handle, one end of the second spring is fixedly connected to the T-shaped shaft, a first spring is fixedly connected inside the rotating shaft, one end of the first spring is fixedly connected to a support rod, a circular ring block is fixedly connected to the surface of the support rod, a card frame bar is fixedly connected to the inside of the square frame, and a mutual inductor device is arranged on the top of the card frame bar.

[0011] According to the above technical solution, a clamping hole is provided inside the left end of the clamping frame strip, and the surface of the long strip matches the inside of the clamping hole.

[0012] According to the above technical solution, a positioning hole is opened inside the positioning plate, one end of the T-shaped shaft surface matches the inside of the positioning hole, a circular hole is opened inside one end of the T-shaped handle, and the T-shaped shaft surface passes through the circular hole opened inside one end of the T-shaped handle.

[0013] According to the above technical solution, a limiting groove is opened inside one end of the rotating shaft, one end of the support rod surface 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 opened on the rotating shaft, and the first spring is located inside the limiting groove.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. The zero-flux current transformer installation device, through the installation mechanism set up, rotates the thumbwheel to drive the threaded rod to rotate, and then drives the threaded rod to move, drives the T-shaped round bar to slide in the T-shaped round opening inside the T-shaped seat, and at the same time drives the hinged bar to rotate, which can drive the T-shaped slide bar and the vertical bar to move, and then allows the clamping rod to be clamped into one end of the clamping frame bar, so that the transformer equipment can be fixed inside the shielding protection base, and then it can play a shielding protection role inside the transformer equipment, and avoid the transformer equipment from causing certain electromagnetic interference when used with other equipment, so that the operation of the transformer equipment is more stable, and it is convenient and quick to install and easy to operate.

[0015] 2. The zero-flux current transformer installation device, through the installation mechanism, uses the limit block to slide under the limit inside the T-shaped seat, so that the installation and fixation of the transformer equipment is more stable. In addition, when the clamping rod is moved and clamped into the clamping frame, the engagement of the spur gear with the hollow seat during movement can save effort to clamp the clamping rod and make the installation operation more convenient.

[0016] 3. The zero-flux current transformer installation device, through the positioning mechanism set up, pulls open the T-shaped shaft and after overcoming the elastic force of the second spring, the T-shaped shaft is separated from the locking effect inside the positioning plate, and then the T-shaped handle can be rotated and the rotating shaft is driven to rotate under the limiting effect of the support rod accordingly, thereby driving the square frame to rotate, driving the frame bar and the transformer equipment to rotate, and correspondingly driving the transformer equipment to adjust the angle, thereby improving the convenience of using the transformer equipment.

[0017] 4. The zero-flux current transformer installation device pulls the T-shaped rod outward through the heat dissipation mechanism, and then after the T-shaped rod is moved out of the fixed frame, the limiting effect of the square plate can be released, and then the filter frame can be turned over, and then the filter frame can be cleaned accordingly, thereby facilitating the cleaning of the filter frame and ensuring the heat dissipation and ventilation effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a three-dimensional diagram of the structure of the present invention; Figure 2 This is a three-dimensional exploded view of the structural positioning assembly of the present invention; Figure 3 This is a three-dimensional exploded view of the parts of the structural positioning assembly of the present invention; Figure 4 It is a three-dimensional cross-sectional view of the operating components of the structure of the present invention; Figure 5 This is a three-dimensional exploded view of the structural positioning mechanism of the present invention; Figure 6 This is a three-dimensional exploded view of the parts of the structural positioning mechanism of the present invention; Figure 7 This is a three-dimensional exploded view of the heat dissipation mechanism of the present invention; Figure 8 This is a three-dimensional diagram of the structural shielding protection base of the present invention.

[0019] In the figure: 1. shielding protection base; 2. mounting mechanism; 21. buckle assembly; 211. threaded sleeve; 212. dial wheel; 213. threaded rod; 214. T-shaped round bar; 215. hinged bar; 216. T-shaped slide bar; 217. vertical bar; 218. clamping rod; 22. limit assembly; 221. T-shaped seat; 222. hollow seat; 223. spur rack; 224. spur gear; 225. limit 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 ring block; 361, support rod; 362, second spring; 37, T-shaped shaft; 38, frame bar; 39, mutual inductor 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 DESCRIPTION

[0020] The following will be combined with the drawings in 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.

[0021] The present invention provides the following technical solutions: Embodiment 1 Combination Figures 1 to 8, a zero-flux current transformer installation device, comprising a shielding protection base 1, a positioning mechanism 3 is fixedly connected to the top of the shielding protection base 1, and a mounting mechanism 2 is fixedly connected to the top of the positioning mechanism 3; The mounting mechanism 2 includes a buckle assembly 21, which includes a threaded sleeve 211. There are four threaded sleeves 211, which are respectively arranged at the left and right ends of the top of the shielding protection base 1. One end of the surface of the threaded sleeve 211 is fixedly connected to a dial wheel 212, and the inner thread of the threaded sleeve 211 is threadedly connected to a threaded rod 213. The surface of the T-shaped round bar 214 is rotatably connected to the T-shaped round bar 214, and the top of the T-shaped round bar 214 is rotatably connected to a hinged bar 215, and the inner side of the hinged bar 215 is hinged to a T-shaped sliding bar 216, and one end of the T-shaped sliding bar 216 is fixedly connected to a vertical bar 217, and one end of the vertical bar 217 is fixedly connected to a clamping rod 218. There are four threaded sleeves 211, and two adjacent The threaded sleeves 211 are distributed as a group on the front and rear sides of the clamping rod 218, the installation mechanism 2 includes a limit assembly 22, the limit assembly 22 includes a T-shaped seat 221, there are two T-shaped seats 221, the two T-shaped seats 221 are respectively fixedly connected to the left and right ends of the top of the shielding protection base 1, a hollow seat 222 is fixedly connected to the top of the T-shaped seat 221, a spur rack 223 is fixedly connected to the top of the hollow seat 222, a spur gear 224 is meshed and connected to the surface of the spur rack 223, a limit block 225 is arranged inside the T-shaped seat 221, threaded sleeves 211 are respectively arranged on the front and rear sides of the T-shaped seat 221, and 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.

[0022] Furthermore, T-shaped circular openings are provided at the front and rear 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 limit 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 clamping rod 218 is slidably connected to the inside of the rectangular hole.

[0023] Embodiment 2 See also Figure 1-8 On the basis of the first embodiment, the positioning mechanism 3 further comprises a square frame 31, the square frame 31 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 the surface of the rotating shaft 32 near one end, a positioning plate 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 the front end 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 to the inside of the rotating shaft 32, a support rod 361 is fixedly connected to one end of the first spring 351, a circular ring block 36 is fixedly connected to the surface of the support rod 361, a card frame bar 38 is fixedly connected to the inside of the square frame 31, a mutual inductor device 39 is arranged on the top of the card frame bar 38, and a card hole is opened inside the left end of the card frame bar 38.

[0024] Furthermore, a positioning hole is provided inside the positioning disk 34, one end of the surface of the T-shaped shaft 37 matches the inside of the positioning hole, a circular hole is provided inside one end of the T-shaped handle 35, the surface of the T-shaped shaft 37 passes through the circular hole provided inside one end of the T-shaped handle 35, 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 on the rotating shaft 32, the first spring 351 is located inside the limiting groove, the T-shaped shaft 37 is pulled open and after overcoming the elastic force of the second spring 362, the T-shaped shaft 37 is separated from the locking effect inside the positioning disk 34, and then the T-shaped handle 35 can be rotated and the rotating shaft 32 is driven to rotate under the limiting effect of the support rod 361 accordingly, thereby driving the square frame 31 to rotate, drive the frame bar 38 and the mutual inductor device 39 to rotate, and correspondingly drive the mutual inductor device 39 to adjust the angle, thereby improving the convenience of using the mutual inductor device 39.

[0025] Embodiment 3 See also Figure 1-8 On the basis of the first embodiment, the heat dissipation mechanism 4 further comprises a fixed frame 41, the fixed frame 41 is fixedly connected to the bottom of the shielding protection base 1, the left end of the fixed frame 41 is rotatably connected to the inside of a support shaft 42, the surface of the support shaft 42 is fixedly connected to a square plate 43, the inside of the square plate 43 is fixedly connected to a filter frame 44, the front of the fixed frame 41 is fixedly connected to a third spring 45, one end of the front of the third spring 45 is fixedly connected to a T-shaped rod 46, the bottom end of the square frame 31 is fixedly connected to a fan plate 47, and the inside of the fan plate 47 is fixedly connected to a fan device 48.

[0026] Furthermore, a socket is provided inside one end of the fixed frame 41, and the surface of the T-shaped rod 46 is plugged into the inside of the socket. The T-shaped rod 46 is pulled outward, and then after the T-shaped rod 46 is moved out of the fixed frame 41, the limiting effect of the square plate 43 is released, and then the filter frame 44 can be turned over, and then the filter frame 44 can be cleaned accordingly, thereby facilitating the cleaning of the filter frame 44 and ensuring the heat dissipation and ventilation effect of the device.

[0027] In actual operation, when this device is used, when the shielding protection of the mutual inductor device 39 is installed, the card frame bar 38 on the mutual inductor device 39 is installed on the shielding protection base 1, and the thumbwheel 212 is rotated to drive the threaded rod 213 to rotate, thereby driving the threaded rod 213 to move, driving the T-shaped round bar 214 to slide in the T-shaped round opening inside the T-shaped seat 221, and at the same time driving the hinged bar 215 to rotate, which can drive the T-shaped slide bar 216 and the vertical bar 217 to move, so that the card rod 218 is inserted into one end of the card frame bar 38, so that the mutual inductor device 39 can be fixed inside the shielding protection base 1, thereby playing a shielding protection role for the inside of the mutual inductor device 39, and avoiding certain electromagnetic interference caused by the mutual inductor device 39 when used with other devices, thereby making the operation of the mutual inductor device 39 more stable, and convenient and quick to install, and easy to operate; In addition, during the installation of the equipment, when the clamping rod 218 slides, the limit block 225 is used to slide under the limit of the T-shaped seat 221, so that the installation and fixation of the mutual inductor device 39 is more stable. In addition, when the clamping rod 218 is moved and inserted into the clamping frame 38, the engagement of the spur gear 224 with the hollow seat 222 during movement can save effort to clamp the clamping rod 218, and make the installation operation more convenient. Later, when the transformer device 39 is in use, when the use angle of the transformer device 39 needs to be adjusted, the T-shaped handle 35 is pulled and the support rod 361 is driven to overcome the elastic force of the first spring 351 under the limiting action of the inner end of the rotating shaft 32 and the circular ring block 36, and then the T-shaped shaft 37 is driven to move. At the same time, the T-shaped shaft 37 will break away from the clamping action inside the positioning plate 34 after overcoming the elastic force of the second spring 362 during movement. Then, the T-shaped handle 35 can be rotated and the rotating shaft 32 can be driven to rotate under the limiting action of the support rod 361 accordingly, thereby driving the square frame 31 to rotate, driving the frame bar 38 and the transformer device 39 to rotate, and correspondingly driving the transformer device 39 to adjust the angle, thereby improving the convenience of using the transformer device 39. When the device is in use and needs to be cooled accordingly, the fan device 48 is used to blow air to dissipate heat. When the filter frame 44 needs to be cleaned of dust, the T-shaped rod 46 is pulled outward, and then after the T-shaped rod 46 is moved out of the fixed frame 41, the limiting effect of the square plate 43 is released, and then the filter frame 44 can be turned over, and then the filter frame 44 can be cleaned accordingly, thereby facilitating the cleaning of the filter frame 44 and ensuring the heat dissipation and ventilation effect of the device.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A zero-flux current transformer installation device, comprising a shielding protection base (1), characterized in that: The top of the shielding protection base (1) is fixedly connected to a positioning mechanism (3), and the top of the positioning mechanism (3) is fixedly connected to a mounting mechanism (2); The mounting mechanism (2) comprises a buckle assembly (21), wherein the buckle assembly (21) comprises a threaded sleeve (211), wherein there are four threaded sleeves (211), and the four threaded sleeves (211) are respectively arranged at the left and right ends of the top 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 to the inside of the threaded sleeve (211); a T-shaped round bar (214) is rotatably connected to the surface of the T-shaped round bar (214); a hinged bar (215) is rotatably connected to the top of the T-shaped round bar (214); a T-shaped sliding bar (216) is hingedly connected to the inside of the hinged bar (215); a vertical bar (217) is fixedly connected to one end of the T-shaped sliding bar (216); and a clamping rod (218) is fixedly connected to one end of the vertical bar (217).

2. A 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) form a group and are distributed on both sides of the front and rear of the clamping rod (218).

3. A zero-flux current transformer installation device according to claim 2, characterized in that: The mounting mechanism (2) comprises a limit assembly (22), the limit assembly (22) comprising a T-shaped seat (221), there are two T-shaped seats (221), the two T-shaped seats (221) are respectively fixedly connected to the left and right ends of the top of the shielding protection base (1), a hollow seat (222) is fixedly connected to the top of the T-shaped seat (221), a spur rack (223) is fixedly connected to the top of the hollow seat (222), a spur gear (224) is meshingly connected to the surface of the spur rack (223), a limit block (225) is arranged inside the T-shaped seat (221), and threaded sleeves (211) are respectively arranged on the front and rear sides of the T-shaped seat (221), and 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).

4. A zero-flux current transformer installation device according to claim 3, characterized in that: The T-shaped seat (221) has T-shaped circular openings at both ends, the surface of the T-shaped round 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 limit 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 clamping rod (218) is slidably connected to the inside of the rectangular hole.

5. A zero-flux current transformer installation device according to claim 4, characterized in that: The positioning mechanism (3) comprises a square frame (31), the square frame (31) being fixedly connected to the top of the shielding protection base (1), a rotating shaft (32) being rotatably connected inside the square frame (31), a movable rod (33) being fixedly connected to the surface of the rotating shaft (32) near one end, a positioning plate (34) being fixedly connected to the front of the square frame (31), a T-shaped handle (35) being fixedly connected to one end of the rotating shaft (32), a second spring (362) being fixedly connected to the front end of the T-shaped handle (35), a T-shaped shaft (37) being fixedly connected to one end of the second spring (362), a first spring (351) being fixedly connected to the inside of the rotating shaft (32), a support rod (361) being fixedly connected to one end of the first spring (351), a circular ring block (36) being fixedly connected to the surface of the support rod (361), a clamping frame bar (38) being arranged inside the square frame (31), and a mutual inductor device (39) being fixedly connected to the top of the clamping frame bar (38).

6. A zero-flux current transformer installation device according to claim 5, characterized in that: A clamping hole is provided inside the left end of the clamping frame strip (38), and the surface of the clamping rod (218) matches the inside of the clamping hole.

7. A zero-flux current transformer installation device according to claim 6, characterized in that: A positioning hole is formed inside the positioning plate (34), one end of the surface of the T-shaped shaft (37) matches the inside of the positioning hole, a circular hole is formed inside one end of the T-shaped handle (35), and the surface of the T-shaped shaft (37) penetrates the circular hole formed inside one end of the T-shaped handle (35).

8. A zero-flux current transformer installation device according to claim 7, 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 on the rotating shaft (32), and the first spring (351) is located inside the limiting groove.

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