Combined anti-resonance mutual inductor

Abstract

The utility model discloses a combined anti-resonance mutual inductor which comprises a mutual inductance shell, the front side of the mutual inductance shell is rotationally connected with a mutual inductance shell door through a pin shaft, and the combined anti-resonance mutual inductor further comprises a locking mechanism. The locking mechanism comprises a first locking block, a first locking groove, a transmission rod, a second locking block, a second locking groove and a pull rod, the first locking block is slidably connected into a sliding groove in the middle of the left side of the mutual induction shell door, the first locking groove is formed in the middle of the left side wall of the mutual induction shell, and the first locking groove and the first locking block are installed in a matched mode; according to the combined type anti-resonance mutual inductor, the first locking blocks are matched with the first locking grooves, the second locking blocks are matched with the second locking grooves, when the combined type anti-resonance mutual inductor is maintained, the first locking blocks are matched with the first locking grooves, and the first locking blocks and the second locking blocks are matched with the second locking grooves, so that the combined type anti-resonance mutual inductor is convenient to maintain, and the service life of the combined type anti-resonance mutual inductor is prolonged. The mutual inductance shell door is easier and more convenient to open and close.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-resonance mutual inductors, in particular to a combined anti-resonance mutual inductor. Background Art

[0002] The anti-resonance transformer is a transformer specially designed to suppress the resonance phenomenon in the power system. It operates in a neutral point non-effectively grounded system and can effectively suppress various resonance phenomena, especially under transient excitation conditions such as opening and closing, switching operations, single-phase grounding, etc. It can prevent ferromagnetism;

[0003] The traditional combined anti-resonance transformer is to install the voltage transformer and the current transformer inside the protective shell at the same time;

[0004] This type of combined anti-resonance transformer has the following disadvantages: the protective shell cover is fixed with bolts, and the bolt covers need to be removed one by one during maintenance, which is cumbersome. Therefore, we propose a combined anti-resonance transformer. Utility Model Content

[0005] The technical problem to be solved by the present invention is to overcome the existing defects and provide a combined anti-resonance mutual inductor. By cooperating the locking block 1 with the locking groove 1, and the locking block 2 with the locking groove 2, the mutual inductance shell door of the combined anti-resonance mutual inductor can be opened and closed more simply and conveniently during maintenance, which can effectively solve the problems in the background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a combined anti-resonance mutual inductor, comprising a mutual inductance housing, the front side of which is rotatably connected to a mutual inductance housing door via a pin, and further comprising a locking mechanism;

[0007] The locking mechanism comprises a locking block 1, a locking groove 1, a transmission rod, a locking block 2, a locking groove 2 and a pull rod, wherein the locking block 1 is slidably connected in the sliding groove in the middle of the left side of the mutual induction shell door, and a locking groove 1 is provided in the middle of the left wall of the mutual induction shell. The locking groove 1 is cooperated with the locking block 1 for installation, and the transmission rod is rotatably connected in the installation grooves at the upper and lower ends of the mutual induction shell door, and the side of the installation groove away from the center of the mutual induction shell is slidably connected with the evenly distributed locking blocks 2. The upper and lower side walls of the mutual induction shell are provided with evenly distributed locking grooves 2, and the locking grooves 2 are cooperated with the horizontally adjacent locking blocks 2 for installation, and the side of the locking block 2 close to the center of the mutual induction shell is rotatably connected to the side of the pull rod away from the center of the mutual induction shell, and the side of the pull rod close to the center of the mutual induction shell is rotatably connected to the middle of the outer surface of the transmission rod. By cooperating with the locking block 1 and the locking block 2 with the locking groove 2, the mutual induction shell door opening and closing of the combined anti-resonance mutual inductor is simpler and more convenient during maintenance.

[0008] Furthermore, a control switch is provided on the front side of the mutual inductance shell door, and terminal 1, terminal 2 and terminal 3 are provided on the upper end of the mutual inductance shell. The input ends of terminal 1, terminal 2 and terminal 3 are all electrically connected to the external power supply, and the output ends of terminal 1, terminal 2 and terminal 3 are all electrically connected to the input end of the control switch and connected to the power supply.

[0009] Furthermore, the locking mechanism also includes an elliptical extrusion block, which is rotatably connected to the right end of the slide groove. A handle is provided in the middle of the upper end of the elliptical extrusion block. The elliptical extrusion block is installed in cooperation with the right side surface of the locking block one to squeeze the locking block one.

[0010] Furthermore, the locking mechanism also includes a spring, which is arranged between the left side of the locking block 1 and the inner wall of the sliding groove to provide a rebound force for the locking block 1.

[0011] Furthermore, the locking mechanism also includes a bevel gear, a rotating rod and a bevel gear. The left side of the mounting groove is rotatably connected to the rotating rod, the rear end of the rotating rod is fixedly sleeved with a bevel gear, and the left side of the pull rod is fixedly sleeved with a bevel gear. The bevel gears are meshed and connected with the bevel gear located in the same mounting groove to drive the transmission rod.

[0012] Furthermore, the locking mechanism also includes a knob, which is arranged at the front end of the rotating rod to drive the rotating rod.

[0013] Furthermore, a current transformer is provided on the right side of the bottom wall of the mutual inductance shell, a voltage transformer is provided on the left side of the rear side wall of the mutual inductance shell, and a coil is provided on the right side of the bottom wall of the mutual inductance shell. The output ends of the current transformer and the voltage transformer are electrically connected to the input ends of the coil, and the input ends of the current transformer and the voltage transformer are electrically connected to the output end of the control switch to convert voltage and current.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the combined anti-resonance mutual inductor has the following advantages:

[0015] By cooperating the locking block 1 with the locking groove 1, the rotating rod drives the transmission rod to rotate and drives the locking block 2 to slide, so that the mutual inductance shell door opening and closing of the combined anti-resonance mutual inductor is simpler and more convenient during maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model in cross section;

[0018] Figure 3 This is a schematic structural diagram of a cross-section of the locking mechanism of the present invention;

[0019] Figure 4It is a structural schematic diagram of the transmission rod of the utility model.

[0020] In the figure: 1 mutual inductance housing, 2 mutual inductance housing door, 3 control switch, 4 coil, 5 voltage transformer, 6 current transformer, 7 pin, 8 locking mechanism, 801 locking block 1, 802 locking groove 1, 803 spring, 804 elliptical extrusion block, 805 transmission rod, 806 locking block 2, 807 locking groove 2, 808 pull rod, 809 bevel gear, 810 rotating rod, 811 bevel gear, 812 knob, 9 handle, 10 terminal 1, 11 terminal 2, 12 terminal 3. DETAILED DESCRIPTION

[0021] 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 embodiments described 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.

[0022] See also Figure 1-4 The present embodiment provides a technical solution: a combined anti-resonance mutual inductor, comprising a mutual inductance housing 1, the front side of which is rotatably connected to a mutual inductance housing door 2 via a pin shaft 7, and further comprising a locking mechanism 8, a control switch 3 being provided on the front side of the mutual inductance housing door 2, a terminal 1 10, a terminal 2 11 and a terminal 3 12 being provided on the upper end of the mutual inductance housing 1, the input ends of the terminal 10, the terminal 2 11 and the terminal 3 12 being electrically connected to an external power supply, the output ends of the terminal 10, the terminal 2 11 and the terminal 3 12 being electrically connected to the input end of the control switch 3, the bottom wall right side of the mutual inductance housing 1 A current transformer 6 is provided on the side, a voltage transformer 5 is provided on the left side of the rear side wall of the mutual inductance housing 1, and a coil 4 is provided on the right side of the bottom wall of the mutual inductance housing 1. The output ends of the current transformer 6 and the voltage transformer 5 are electrically connected to the input end of the coil 4, and the input ends of the current transformer 6 and the voltage transformer 5 are electrically connected to the output end of the control switch 3. It is necessary to first connect the terminal 1 10, the terminal 2 11 and the terminal 3 12 to the external power supply respectively, and then turn on the control switch 3. The current and voltage are converted by the current transformer 6 and the voltage transformer 5 respectively and output to the coil 4, and the coil 4 outputs to the external load;

[0023] Locking mechanism 8: It includes a locking block 801, a locking groove 802, a transmission rod 805, a locking block 806, a locking groove 807 and a pull rod 808. A locking block 801 is slidably connected in the sliding groove in the middle of the left side of the mutual induction shell door 2. A locking groove 802 is provided in the middle of the left side wall of the mutual induction shell 1. The locking groove 802 is installed in conjunction with the locking block 801. The installation grooves at the upper and lower ends of the mutual induction shell door 2 are rotatably connected with the transmission rod 805. The side of the installation groove away from the center of the mutual induction shell 1 is slidably connected with a uniformly distributed locking block 806. The upper and lower side walls of the mutual induction shell 1 are provided with uniformly distributed locking grooves 807. The locking grooves 807 are all horizontally aligned. The adjacent locking blocks 806 are installed in cooperation, and the side of the locking block 806 close to the center of the mutual inductance shell 1 is rotatably connected to the side of the pull rod 808 away from the center of the mutual inductance shell 1, and the side of the pull rod 808 close to the center of the mutual inductance shell 1 is rotatably connected to the middle of the outer surface of the transmission rod 805. The locking mechanism 8 also includes an elliptical extrusion block 804, which is rotatably connected to the right end of the slide groove. A handle 9 is provided at the middle of the upper end of the elliptical extrusion block 804. The elliptical extrusion block 804 is installed in cooperation with the right side of the locking block 1 801. The locking mechanism 8 also includes a spring 803, which is provided between the left side of the locking block 1 801 and the inner wall of the slide groove. The locking mechanism 8 also includes a spring 803. The spring 803 is provided between the left side of the locking block 1 801 and the inner wall of the slide groove. The locking mechanism 8 further comprises a bevel gear 809, a rotating rod 810 and a bevel gear 811. The left side of the mounting groove is rotatably connected to the rotating rod 810. The rear end of the rotating rod 810 is fixedly sleeved with a bevel gear 811. The left side of the pull rod 808 is fixedly sleeved with a bevel gear 809. The bevel gears 809 are meshed with the bevel gear 811 located in the same mounting groove. The locking mechanism 8 also comprises a knob 812. The knob 812 is arranged at the front end of the rotating rod 810. When the combined anti-resonance mutual inductor needs to be maintained, the handle 9 is first turned. The handle 9 drives the elliptical extrusion block 804 to rotate. When the distal end of the elliptical extrusion block 804 disengages from the locking block 801, the locking block 801 will be locked in the spring 803. The first locking member 801 is engaged with the first locking member 802 and the second locking member 806 is engaged with the second locking member 807.

[0024] The working principle of the combined anti-resonance transformer provided by the present invention is as follows: When using the combined anti-resonance transformer, it is necessary to first connect the terminal 10, the terminal 2 11 and the terminal 3 12 to the external power supply respectively, and then turn on the control switch 3. The current and voltage are converted by the current transformer 6 and the voltage transformer 5 respectively and output to the coil 4, and the coil 4 is output to the external load. When it is necessary to maintain the combined anti-resonance transformer, first turn the handle 9, and the handle 9 drives the elliptical extrusion block 804 to rotate. When the telecentricity of the elliptical extrusion block 804 is The end is disengaged from the locking block 801, and the locking block 801 will slide into the inside of the slide groove under the action of the spring 803, so that the locking block 801 is disengaged from the locking groove 802, and then the knob 812 is turned by hand, and the knob 812 drives the rotating rod 810 to drive the bevel gear 811 to drive the bevel gear 809 to drive the pull rod 808 to rotate, and the pull rod 808 pulls the locking block 2 806 out of the locking groove 2 807. At this time, the mutual inductance shell door 2 can be opened to maintain the combined anti-resonance mutual inductor. After the maintenance is completed, just repeat the above steps in reverse.

[0025] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A combined anti-resonance mutual inductor, comprising a mutual inductance housing (1), the front side of the mutual inductance housing (1) being rotatably connected to a mutual inductance housing door (2) via a pin (7), characterized in that: Also includes a locking mechanism (8); The locking mechanism (8) comprises a locking block (801), a locking groove (802), a transmission rod (805), a locking block (806), a locking groove (807) and a pull rod (808). The locking block (801) is slidably connected in the sliding groove in the middle of the left side of the mutual induction shell door (2). The middle of the left side wall of the mutual induction shell (1) is provided with a locking groove (802). The locking groove (802) is matched with the locking block (801) for installation. The transmission rod (805) is rotatably connected in the installation grooves at the upper and lower ends of the mutual induction shell door (2). The installation grooves The side away from the center of the mutual inductance shell (1) is slidably connected with the evenly distributed locking block two (806), the upper and lower side walls of the mutual inductance shell (1) are provided with evenly distributed locking grooves two (807), the locking grooves two (807) are installed in conjunction with the horizontally adjacent locking block two (806), the side of the locking block two (806) close to the center of the mutual inductance shell (1) is rotatably connected to the side of the pull rod (808) away from the center of the mutual inductance shell (1), and the side of the pull rod (808) close to the center of the mutual inductance shell (1) is rotatably connected to the middle part of the outer surface of the transmission rod (805).

2. The combined anti-resonance mutual inductor according to claim 1, characterized in that: A control switch (3) is provided on the front side of the mutual inductance housing door (2), and a terminal 1 (10), a terminal 2 (11) and a terminal 3 (12) are provided on the upper end of the mutual inductance housing (1). The input ends of the terminal 1 (10), the terminal 2 (11) and the terminal 3 (12) are all electrically connected to an external power supply, and the output ends of the terminal 1 (10), the terminal 2 (11) and the terminal 3 (12) are all electrically connected to the input end of the control switch (3).

3. The combined anti-resonance mutual inductor according to claim 1, characterized in that: The locking mechanism (8) further comprises an elliptical extrusion block (804), which is rotatably connected to the right end of the slide slot. A handle (9) is provided at the middle of the upper end of the elliptical extrusion block (804), and the elliptical extrusion block (804) is mounted in cooperation with the right side surface of the locking block (801).

4. The combined anti-resonance mutual inductor according to claim 1, characterized in that: The locking mechanism (8) further includes a spring (803), and the spring (803) is arranged between the left side of the locking block (801) and the inner wall of the sliding groove.

5. The combined anti-resonance mutual inductor according to claim 1, characterized in that: The locking mechanism (8) further comprises a bevel gear (809), a rotating rod (810) and a bevel gear (811); the left side of the mounting groove is rotatably connected to the rotating rod (810); the rear end of the rotating rod (810) is fixedly sleeved with a bevel gear (811); the left side of the pull rod (808) is fixedly sleeved with a bevel gear (809); and the bevel gear (809) is meshedly connected with the bevel gear (811) located in the same mounting groove.

6. The combined anti-resonance mutual inductor according to claim 5, characterized in that: The locking mechanism (8) further includes a knob (812), and the knob (812) is arranged at the front end of the rotating rod (810).

7. The combined anti-resonance mutual inductor according to claim 1, characterized in that: A current transformer (6) is provided on the right side of the bottom wall of the mutual inductance housing (1), a voltage transformer (5) is provided on the left side of the rear side wall of the mutual inductance housing (1), and a coil (4) is provided on the right side of the bottom wall of the mutual inductance housing (1); the output ends of the current transformer (6) and the voltage transformer (5) are both electrically connected to the input end of the coil (4), and the input ends of the current transformer (6) and the voltage transformer (5) are both electrically connected to the output end of the control switch (3).

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