All-insulation separation electricity taking device

Abstract

The utility model discloses an all-insulation separated electricity taking device, which belongs to the technical field of high-voltage lines and comprises an electricity taking device, a separable high-voltage connecting mechanism and a separable low-voltage connecting mechanism. Two ends of a high-voltage coil of the electricity taking device are connected with a left suspension rod and a right suspension rod; the left suspension rod and the right suspension rod are fixedly connected with a conducting rod, the bottom of the conducting rod is screwed with an electric contact, output wires extend out of the two ends of the low-voltage coil and are connected with output terminals, and screw electrodes are installed on the output terminals; the upper part of the separable high-voltage connecting mechanism is provided with an annular cone-shaped resin body, the annular cone-shaped resin body is internally provided with an opening, the conducting rod is inserted into the opening, and the electrical contact extrudes the contact spring; according to the power taking device, connection between the power taking device and the separable high-voltage connecting mechanism and the power taking device and between the power taking device and the separable low-voltage connecting mechanism is achieved through spring bounce, connection is convenient and fast, and efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to high voltage line technical field, concretely relates to a kind of full insulation separation power taking device. BACKGROUND

[0002] With the popularization of power system, electric energy becomes an essential part of people's daily life, and in the application scene of pole-mounted high-voltage switch, the driving of the switch mechanism and the secondary control device need power supply, which generally uses high-voltage power taking device to provide power supply. In typical applications, the high-voltage power taking device is independently installed on a bracket. The working high-voltage electricity is connected to the high-voltage terminal of the power taking device through a cable. The low-voltage output signal of the power taking device is connected to the secondary control device using a cable. This approach involves a large number of cables and high-voltage components such as fixing screws. First, it is not possible to make high-voltage components not exposed and easily touched by branches and other objects, causing short circuits. The insulation performance is poor, the safety is low, and the equipment is easily eroded by sunlight and rain. Second, the on-site installation and construction takes a long time, the efficiency is low, the connection is not convenient, and if the lines are connected incorrectly, the power taking device may be burned. Moreover, the independent installation of the bracket also has the problems of large occupation, high cost, and messy and unattractive wiring. SUMMARY

[0003] To solve the problems in the prior art, the utility model provides a full insulation separation power taking device. The device has a separable high-voltage connection mechanism and a separable low-voltage connection mechanism connected to the power taking device. The electrical connection can be completed by pressure connection, which simplifies the wiring and realizes detachability.

[0004] The utility model adopts the following technical solutions.

[0005] The utility model discloses a full insulation separation power taking device, which comprises a power taking device, a separable high-voltage connection mechanism, and a separable low-voltage connection mechanism. The power taking device comprises a core, an epoxy bucket, a high-voltage coil, and a low-voltage coil. The low-voltage coil is wound on the outer peripheral surface of the core, and the high-voltage coil is wound on the outer peripheral surface of the epoxy bucket. The low-voltage coil is inside the high-voltage coil. The left and right suspension rods are connected to the high-voltage coil at one end, and the other end of the left and right suspension rods is fixedly connected to the conductive rod. The conductive rod is rotatably connected to the electric contact at the bottom. Two output conductors are connected to the two ends of the low-voltage coil. One end of each output conductor is connected to an output terminal. Screws are installed on the output terminal.

[0006] The separable high-voltage connection mechanism is arranged on the high-voltage switch. A ring cone-shaped resin body is arranged on the upper part of the separable high-voltage connection mechanism. An opening is arranged in the ring cone-shaped resin body. The conductive rod is inserted into the opening, and the electric contact is pressed against the contact spring.

[0007] The separable low-voltage connecting mechanism is arranged on the cabinet, the bottom of the separable low-voltage connecting mechanism is provided with a base, the base is provided with a stud, one end of the stud is connected with a wire, a spring contact is arranged on the upper end of the stud through a fixing screw, and the screw electrode and the spring contact are in close contact.

[0008] Preferably, mounting holes are arranged at the two ends of the base, and mounting screws are arranged to pass through the mounting holes to fix the base on the cabinet wall.

[0009] Preferably, a cover is arranged above the spring contact, and the bottom of the cover is clamped with the base.

[0010] Preferably, two round holes are arranged on the upper part of the cover and correspond to the positions of the spring contact, and the screw electrode on the power taking device is inserted into the two round holes of the cover to contact the spring contact.

[0011] Preferably, a touch spring nut is arranged at the bottom of the opening, a touch spring is fixed on the touch spring nut through a touch spring screw, one end of the touch spring nut is connected with a conductive wire, and the conductive wire is connected with a high-voltage wire.

[0012] Preferably, an insulation gap is arranged between the high-voltage coil and the low-voltage coil.

[0013] Preferably, an epoxy resin shell is arranged on the outer surface of the power taking device, a silicone rubber shell is arranged on the outer surface of the epoxy resin shell, and the insulation gap is filled with the epoxy resin shell.

[0014] Preferably, the high-voltage coil comprises a first extremely high-voltage coil and a second extremely high-voltage coil, the tail end of the first extremely high-voltage coil is connected with the head end of the second extremely high-voltage coil, the head end of the first extremely high-voltage coil is connected with a left hanging rod, and the tail end of the second extremely high-voltage coil is connected with a right hanging rod.

[0015] Preferably, the bottom of the iron core is connected with a bottom plate, screw holes are arranged at four corners of the bottom plate, the bottom plate is rotatably connected with an adjusting nut through the screw holes, a round hole is arranged in the middle of the adjusting nut, and a screw passes through the round hole of the adjusting nut and is connected with the cabinet.

[0016] Preferably, a silicone rubber shell is arranged on the outer surface of the conductive rod, a sealing protruding ring is arranged at the lower end of the conductive rod, a ring cone-shaped gap is arranged on the upper part of the conductive rod, a ring cone-shaped gap outer wall is arranged on the outer circumferential surface of the ring cone-shaped gap, and a ring cone-shaped resin body of the separable high-voltage connecting mechanism is inserted into the ring cone-shaped gap.

[0017] Compared with the prior art, the power taking device of the utility model is integrally fixed by epoxy resin shell pressure injection, the surface of the epoxy resin shell pressure injection is further pressure injected with a silicone rubber shell, therefore, the insulation gap between the high-voltage coil and the low-voltage coil is a gap before the epoxy resin is pressure injected, and the gap is filled with the epoxy resin after pressure injection, thereby forming an electrical insulation layer between the high-voltage and low-voltage components, and the safety and insulation performance are improved.

[0018] Meanwhile, the separable high-voltage connecting mechanism, the separable low-voltage connecting mechanism and the power taking device of the device are arranged inside the epoxy resin, there is no exposed high-voltage component, when used outdoors, the sunlight and rainwater can be resisted, external wiring is no longer needed, the installation support is saved, the device can be prefabricated and tested, then transported to the site for installation, the efficiency is improved, the construction time is greatly saved, wiring errors are avoided, power outage events are reduced, the power taking device can be disassembled and assembled from the outside, and the power taking device can be replaced when a fault occurs.

[0019] Meanwhile, the power taking device and the separable high-voltage connecting mechanism and the separable low-voltage connecting mechanism are connected by relying on the spring rebound force, and no fixing member is needed, so that the connection and separation can be completed by only abutting and lifting the power taking device, the installation efficiency is improved, the connection is more convenient, the connection is more compact through the elastic force of the spring, and the circuit is prevented from being disconnected.

[0020] The annular conical resin body of the utility model is inserted into the annular conical gap of the conductive rod, the three sealing protruding rings extrude the opening, the interface between the annular conical resin body of the separable high-voltage connecting mechanism and the silicon rubber shell of the power taking device at the extrusion position is tightly connected, air is blocked, and the insulation performance is improved; meanwhile, the outer circumferential surface of the annular conical resin body is in interference connection with the outer wall of the annular conical gap, the interference connection of the two blocks air, improves the insulation performance, and makes the opening on the annular conical resin body form a closed space, and then the connection between the contact spring and the electrical contact is isolated from the dust and water vapor in the external environment, and the insulation performance and the airtightness are improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the front view of the power taking device of the utility model;

[0022] Figure 2 is the side sectional view of the power taking device of the utility model;

[0023] Figure 3 is the internal structure diagram of the power taking device of the utility model;

[0024] Figure 4 is the structure diagram of the separable high-voltage connecting mechanism of the utility model;

[0025] Figure 5 is the structure diagram of the separable high-voltage connecting mechanism and the electrical contact of the utility model;

[0026] Figure 6 is the structure diagram of the separable low-voltage connecting mechanism of the utility model;

[0027] Figure 7 is the structure diagram of the separable low-voltage connecting mechanism and the spring contact of the utility model;

[0028] Figure 8 is the structure diagram of the electricity taking device of the utility model;

[0029] In the drawing: 100, electricity taking device; 1, electric contact; 2, conductive rod; 3, left suspension rod; 4, high voltage coil; 5, epoxy bucket; 6, low voltage coil; 7, iron core; 8, insulation gap; 9, right suspension rod; 10, ring cone gap; 11, ring cone gap outer wall; 12, sealing protruding ring; 13, first pole high voltage coil; 14, second pole high voltage coil; 15, bottom plate; 16, epoxy resin shell; 17, silicone rubber shell; 101, output wire; 102, output terminal; 103, adjusting nut; 200, separable high voltage connecting mechanism; 201, contact spring; 202, contact spring screw; 203, contact spring nut; 204 conductive connecting wire; 205, ring cone resin body; 207, opening; 300, separable low voltage connecting mechanism; 301, base; 302, buckle cover; 303, fixing screw; 304, spring contact; 305, stud; 306, mounting hole; 308, screw electrode; 309, box wall; 310, mounting screw. DETAILED DESCRIPTION

[0030] In order to make the utility model purposes, technical scheme and advantages more clearly, below will combine the drawing in the utility model embodiment, the technical scheme of the utility model is clearly and completely described. The embodiment described in the application is only a part of the embodiment of the utility model, not all embodiments. Based on the spirit of the utility model, the ordinary skill in the art obtains other embodiments without making creative labor, which belongs to the protection scope of the utility model.

[0031] As Figures 1-8 shown, the utility model discloses a kind of full insulation separation electricity taking device, and the device includes: electricity taking device 100, separable high voltage connecting mechanism 200 and separable low voltage connecting mechanism 300, the electricity taking device 100 includes: low voltage coil 6, iron core 7, epoxy bucket 5 and high voltage coil 4, the low voltage coil 6 is enameled wire winding on the outer circumferential surface of iron core 7, iron core 7 is mouth-shaped structure, high voltage coil 4 is enameled wire winding on the outer circumferential surface of epoxy bucket 5, iron core 7 top passes through the inside of epoxy bucket 5, left suspension rod 3 and right suspension rod 9 opposite end are connected with high voltage coil 4, left suspension rod 3 and right suspension rod 9 other end are fixedly connected by nut and conductive rod 2, high voltage coil 4 is hung and fixed by left suspension rod 3 and right suspension rod 9, and the purpose of hanging is to form insulation gap 8 between high voltage coil 4 and low voltage coil 6, the bottom of conductive rod 2 is provided with thread, and the bottom of conductive rod 2 is fixedly connected with electric contact 1 by thread.

[0032] As Figure 1As shown, the power taking device 100 is integrally fixed by an epoxy resin shell 16, the epoxy resin shell 16 is formed by pressure injection, and the epoxy resin shell 16 is coated with a silicon rubber shell 17 on the outer surface, so that the power taking device 100 is packaged inside the epoxy resin shell 16, and the insulation gap 8 between the high-voltage coil 4 and the low-voltage coil 6 is a gap before the epoxy resin shell 17 is pressure injected, and the insulation gap 8 is filled with the epoxy resin shell 17 to form an electrical insulation layer after pressure injection, thereby improving the insulation performance and safety.

[0033] Meanwhile, the power taking device 100 is provided with an epoxy resin shell 16, and the epoxy resin shell 16 is coated with a silicon rubber shell 17 on the outer surface, which is used to resist the erosion of sunlight and rain when used outdoors, and the conductive rod 2 is coated with a silicon rubber shell 17 on the surface, the lower end of the conductive rod 2 is pressure injected to form three sealing protruding rings 12, the outer circumferential surface of the upper part of the conductive rod 2 is provided with an annular taper gap 10, and the outer circumferential surface of the annular taper gap 10 is provided with an annular taper gap outer wall 11, so that the conductive rod 2 can be used in cooperation with the separable high-voltage connection mechanism 200.

[0034] Preferably, the left suspension rod 3, the right suspension rod 9, the conductive rod 2 and the electrical contact 1 are all made of ferrous material and can conduct electricity.

[0035] The high-voltage coil 4 comprises a first pole high-voltage coil 13 and a second pole high-voltage coil 14, the tail end of the wire package of the first pole high-voltage coil 13 is electrically connected with the head end of the wire package of the second pole high-voltage coil 14, so that the first pole high-voltage coil 13 and the second pole high-voltage coil 14 form a series pole structure, which can reduce the interlayer and turn-to-turn voltage inside the high-voltage coil 4 and is conducive to improving the insulation performance of the product.

[0036] The head end of the wire package of the first pole high-voltage coil 13 is electrically connected with the left suspension rod 3, and the tail end of the wire package of the second pole high-voltage coil 14 is electrically connected with the right suspension rod 9, so that the left suspension rod 3 and the right suspension rod 9 serve as both structural members and conductive members.

[0037] The wire package of the low-voltage coil 6 has two output wires 101 extending from the same side, and one output terminal 102 is welded to one end of each output wire 101, and a screw electrode 308 is installed on the output terminal 10, which is a signal output terminal of the power taking device 100.

[0038] The bottom of the iron core 7 is connected with a bottom plate 15, the bottom plate 15 has an I-shaped structure, screw holes are arranged on the four corners of the bottom plate 15, the bottom plate 15 is screwed through the screw holes and adjusting nuts 103, the central top of the bottom plate 15 is connected with the bottom of the iron core 7, and then the height of the iron core 7 and the low-voltage coil 6 is adjusted until they are in the same center position with the high-voltage coil 4 by controlling the screwing depth of the four adjusting nuts 103, so as to ensure the uniformity of the insulation gap 8.

[0039] The adjusting nut 103 is provided with a circular hole in the middle, which can be used as a mounting hole of the power taking device 100. A screw is screwed and fixed with a stud on the cabinet through the circular hole of the adjusting nut 103, and the power taking device 100 is fixed without passing through the cabinet from the inside of the cabinet. Therefore, the screw can be removed from the outside, and the power taking device 100 is convenient to replace.

[0040] The separable high-voltage connecting mechanism 200 is provided on the high-voltage switch, and is integrally formed by epoxy resin injection. The separable high-voltage connecting mechanism 200 is provided with a ring cone-shaped resin body 205 at the upper part. The ring cone-shaped resin body 205 is adaptively matched with the ring cone-shaped gap 10 on the power taking device 100 in size. The ring cone-shaped resin body 205 is provided with a conical opening 207 inside. The opening 207 is adaptively matched with the conductive rod 2 in size. The opening 207 is provided with a contact spring nut 203 at the bottom. The contact spring 201 is fixed on the contact spring nut 203 through the contact spring screw 202. One end of the contact spring nut 203 is welded with the conductive connecting wire 204. The conductive connecting wire 204 is connected with the high-voltage wire. The contact spring nut 203 and the conductive connecting wire 204 are both encapsulated inside the epoxy resin of the separable high-voltage connecting mechanism 200.

[0041] In the embodiment, when the separable high-voltage connecting mechanism 200 is assembled with the power taking device 100, one end of the electric contact 1 on the conductive rod 2 is inserted into the opening 207 on the ring cone-shaped resin body 205. The contact spring 201 is in contact with the electric contact 1 and is extruded with each other to form an electrical path, so as to conduct the high-voltage electricity and connect it into the high-voltage coil 4. The electrical connection between the separable high-voltage connecting mechanism 200 and the power taking device 100 is realized by the rebound force of the contact spring 201, and no fixing member is needed. Therefore, only the power taking device 100 needs to be separated and inserted into the opening 207 on the separable high-voltage connecting mechanism 200, so as to complete the separation and connection of the circuit. The connection is convenient and efficient. After assembly, the ring cone-shaped resin body 205 is inserted into the ring cone-shaped gap 10 on the outer circumferential surface of the conductive rod 2. Three sealing protruding rings 12 are inserted into the opening 207 on the ring cone-shaped resin body 205 and are extruded. The interface between the ring cone-shaped resin body 205 of the separable high-voltage connecting mechanism 200 and the silicone rubber shell 17 of the power taking device 100 is tightly connected at the extruded part, which blocks the air and improves the insulation performance. At the same time, the outer circumferential surface of the ring cone-shaped resin body 205 is in interference connection with the ring cone-shaped gap outer wall 11. The ring cone-shaped gap outer wall 11 is expanded by the ring cone-shaped resin body 205. Therefore, the interference connection of the two also blocks the air and improves the insulation performance. The opening 207 on the ring cone-shaped resin body 205 forms a closed space, and the connection between the contact spring 201 and the electric contact 1 is in the closed space, which isolates the dust and water vapor in the external environment, improves the insulation performance and the sealing performance.

[0042] The separable low-voltage connection mechanism 300 is arranged on the cabinet, and the separable low-voltage connection mechanism 300 is fixed on the cabinet wall 309 through two sides by mounting screws 310, the separable low-voltage connection mechanism 300 comprises a base 301 and a stud 305, wherein the base 301 and the stud 305 are integrally injection molded, two studs 305 are symmetrically arranged in the center of the base 301, two mounting holes 306 are symmetrically arranged at two ends of the base 301, mounting screws 310 are fixedly connected through the mounting holes 306 and the cabinet wall 309, so that the base 301 is fixed on the cabinet wall 309, spring contacts 304 are arranged on the upper end of the stud 305 through fixing screws 303, a cover 302 is arranged above the spring contacts 304 to protect the internal parts, the cover 302 is clamped at the bottom of the base 301, and two round holes are arranged on the upper part of the cover 302 corresponding to the positions of the spring contacts 304.

[0043] The power taking device 100 is mounted on the cabinet through bolts, a screw electrode 308 is arranged on the output terminal 102 of the power taking device 100, the screw electrode 308 is inserted into the two round holes on the cover 302 to contact the spring contacts 304, the spring contacts 304 are extruded and compressed, the compressed spring contacts 304 contact the screw electrode 308 to form an electrical path, so that the low-voltage power supply signal is turned on and connected to the stud 305, and the other end of the stud 305 is connected with a lead wire, so that the power supply signal can be outputted externally, since the electrical connection is realized by the spring rebounding force, any fixing part is not needed, and therefore, the communication and separation between the power taking device 100 and the separable low-voltage connection mechanism 300 can be completed by only abutting and lifting the power taking device 100, the efficiency is high, and the connection is convenient.

[0044] The power taking device of the utility model has the advantages that, compared with the prior art, the power taking device adopts an epoxy resin shell for integral injection molding, and a silicone rubber shell is injection molded on the surface of the epoxy resin shell after the epoxy resin shell is formed, so that the insulation gap between the high-voltage coil and the low-voltage coil is a gap before the epoxy resin is injection molded, and the gap is filled with the epoxy resin after the epoxy resin is injection molded, thereby forming an electrical insulation layer between the high-voltage component and the low-voltage component, and the safety and insulation performance are improved.

[0045] Meanwhile, the separable high-voltage connection mechanism, the separable low-voltage connection mechanism and the power taking device of the device are all arranged in the epoxy resin, and there is no exposed high-voltage component, so that the device can resist the erosion of sunlight and rainwater when used outdoors, external wiring is no longer needed, mounting brackets are saved, the device can be prefabricated and tested before being delivered to the site for installation, the efficiency is improved, the construction time is greatly saved, wiring errors are avoided, power outage events are reduced, the power taking device can be disassembled and assembled from the outside, and the power taking device can be replaced when a fault occurs.

[0046] The taking electricity device and the separable high-voltage connecting mechanism and the separable low-voltage connecting mechanism are connected by the spring rebound force, without any fixing part, so that the connection and separation can be completed by only pasting and lifting the taking electricity device, the installation efficiency is improved, the connection is more convenient, the connection is more compact through the elastic force of the spring, and the circuit is avoided from being disconnected.

[0047] The technical scheme of the utility model is only used for describing the utility model and is not limited to it, although the utility model is described in detail with reference to the above embodiment, the ordinary skilled in the art should understand that the specific implementation of the utility model can be modified or replaced equivalently without departing from the spirit and scope of the utility model, and any modification or equivalent replacement without departing from the spirit and scope of the utility model should be covered in the protection scope of the claims of the utility model.

Claims

1. A fully insulated power extraction device, comprising: The power extraction device (100), the detachable high-voltage connection mechanism (200), and the detachable low-voltage connection mechanism (300) are characterized in that: The power supply device (100) includes: an iron core (7), an epoxy barrel (5), a high-voltage coil (4) and a low-voltage coil (6). The low-voltage coil (6) is wound on the outer circumference of the iron core (7), and the high-voltage coil (4) is wound on the outer circumference of the epoxy barrel (5). The low-voltage coil (6) is located inside the high-voltage coil (4). One end of the left suspension rod (3) and the right suspension rod (9) is connected to the high-voltage coil (4). The other end of the left suspension rod (3) and the right suspension rod (9) is fixed to the conductive rod (2). The bottom of the conductive rod (2) is screwed to the electrical contact (1). Two output wires (101) extend from both ends of the low-voltage coil (6). One end of each output wire (101) is connected to the output terminal (102). A screw electrode (308) is installed on the output terminal (102). The separable high voltage connection mechanism (200) is installed on the high voltage switch. The upper part of the separable high voltage connection mechanism (200) is provided with a conical resin body (205). The conical resin body (205) has an opening (207) inside. The conductive rod (2) is inserted into the opening (207) and the electric contact (1) squeezes the contact spring (201). The separable low-voltage connection mechanism (300) is mounted on the chassis. A base (301) is provided at the bottom of the separable low-voltage connection mechanism (300). A stud (305) is provided on the base (301). One end of the stud (305) is connected to a wire. A spring contact (304) is mounted on the upper end of the stud (305) by a fixing screw (303). The screw electrode (308) and the spring contact (304) are pressed together.

2. The fully insulated power extraction device according to claim 1, characterized in that: The base (301) has mounting holes (306) at both ends, and mounting screws (310) pass through the mounting holes (306) to fix the base (301) to the box wall (309).

3. The fully insulated power extraction device according to claim 1, characterized in that: A cover (302) is provided above the spring contact (304), and the bottom of the cover (302) is engaged with the base (301).

4. The fully insulated power extraction device according to claim 3, characterized in that: The upper part of the cover (302) is provided with two round holes corresponding to the position of the spring contact (304). The screw electrode (308) on the power supply device (100) is inserted into the two round holes on the cover (302) and contacts the spring contact (304).

5. The fully insulated power extraction device according to claim 1, characterized in that: The bottom of the opening (207) is provided with a spring nut (203), and the spring (201) is fixed on the spring nut (203) by the spring screw (202). One end of the spring nut (203) is connected to the conductive wire (204), and the conductive wire (204) is connected to the high voltage wire.

6. The fully insulated power extraction device according to claim 1, characterized in that: An insulation gap (8) is provided between the high-voltage coil (4) and the low-voltage coil (6).

7. The fully insulated power extraction device according to claim 1, characterized in that: The power supply device (100) is provided with an epoxy resin shell (16) on its outer surface, and a silicone rubber shell (17) is provided on the outer surface of the epoxy resin shell (16). The insulating gap (8) is filled with the epoxy resin shell (16).

8. The fully insulated power extraction device according to claim 1, characterized in that: The high-voltage coil (4) includes a first high-voltage coil (13) and a second high-voltage coil (14). The tail end of the first high-voltage coil (13) is connected to the head end of the second high-voltage coil (14). The head end of the first high-voltage coil (13) is connected to the left suspension rod (3), and the tail end of the second high-voltage coil (14) is connected to the right suspension rod (9).

9. The fully insulated power extraction device according to claim 1, characterized in that: The bottom of the iron core (7) is connected to the base plate (15). The base plate (15) has screw holes at its four corners. The base plate (15) is screwed to the adjusting nut (103) through the screw holes. The adjusting nut (103) has a round hole in the middle. The screw passes through the round hole on the adjusting nut (103) and is connected to the chassis.

10. The fully insulated power extraction device according to claim 1, characterized in that: The conductive rod (2) is covered with a silicone rubber shell (17). A sealing protrusion (12) is provided at the lower end of the conductive rod (2). A conical gap (10) is provided at the upper part of the conductive rod (2). A conical gap outer wall (11) is provided on the outer circumference of the conical gap (10). The conical resin body (205) of the separable high voltage connection mechanism (200) is inserted into the conical gap (10).

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