Electrical equipment CT induction energy taking device capable of being installed in electrified mode

Abstract

The invention provides a power equipment CT induction energy taking device capable of being installed in an electrified mode, and the device comprises a CT power taking module which is connected with an isolation transformer, a rectification filtering module, and an output circuit module. The CT electricity taking module is provided with an induction electricity taking device and an installation tool; the mounting tool is in detachable transmission connection with the transmission mechanism; according to the invention, the CT electricity taking module takes electricity by using an electromagnetic induction principle, stable power output of electric energy can be realized within a normal current change range of an electric wire through the rectification filtering module, the power supply cost of intelligent power equipment can be reduced, and the power supply reliability is improved; power is input to the transmission mechanism through the installation tool, the transmission mechanism drives the coil assemblies at the ends of the two driving arms to be closed or opened, and therefore the induction electricity taking device can be installed or disassembled, rapid installation and disassembly are achieved, operation difficulty and labor intensity are reduced, and working efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of power system energy acquisition equipment, and in particular relates to a CT induction energy acquisition device for power equipment that can be installed live. Background Art

[0002] With the rapid development of the national economy in recent years, my country's power construction has also achieved sustained and stable development. With the development of smart grids, many intelligent electronic devices have been widely used in power grid systems, such as online detection equipment for transmission and distribution lines, distribution automation equipment, intelligent ring network cabinets, power monitoring equipment, high-voltage live working tools, field communication base stations, and various indicator lights, fault indicators and other equipment. As some equipment is easily restricted by special geographical environments such as outdoor, field, and mountainous areas, it is difficult to solve the power supply problem by conventional methods. Therefore, solar energy, wind power, batteries and other methods are currently used to power these power equipment.

[0003] The above power supply methods are restricted by the intensity of sunlight and weather. When it is rainy and windless, they cannot guarantee sufficient power supply. In addition, the conversion efficiency of solar cells is low, and the battery power supply at night is not conducive to long-term use and has low power supply reliability. In addition, frequent replacement of batteries on the line is time-consuming, labor-intensive, wasteful, and inconvenient to maintain.

[0004] Current induction power supply is also known as CT energy supply. CT energy supply is a "self-sufficient" online energy supply method that uses the principle of electromagnetic induction to directly intercept energy from the electromagnetic field around the line where it is located. It has the advantages of small size, simple installation, maintenance-free, unaffected by weather, and high insulation level. However, the existing current induction energy supply device requires a power outage to be installed, while some electrical equipment requires continuous operation, and the cost of power outage installation is too high and the efficiency is low.

[0005] Therefore, it is necessary to design a CT induction energy extraction device for power equipment that is not restricted by sunlight and weather, reduces the probability of power outages and failures of power equipment, enhances power supply stability, and can be installed under power without power outages to solve the technical problems currently faced by cable surfaces. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a CT induction energy extraction device for electric power equipment that is not restricted by sunlight and weather, reduces the probability of power failure of electric power equipment, enhances power supply stability, and can be installed live without power outage.

[0007] The technical solution of the present invention is: a CT induction energy collection device for electric power equipment that can be installed with power, including a CT power collection module, to which an isolation transformer, a rectifier and filter module, and an output circuit module are connected; the CT power collection module has an induction collector and an installation tool; the induction collector has a bracket and two matching coil assemblies of semicircular ring structures, and a driving arm is fixedly arranged on the opposite sides of the two coil assemblies, and a transmission mechanism is arranged inside the bracket, and the ends of the two driving arms that are away from the coil assembly are connected to the transmission mechanism; the installation tool and the transmission mechanism have a detachable transmission connection.

[0008] The transmission mechanism comprises a support rod hinged to the middle part of the driving arm, an end of the support rod facing away from the driving arm is hinged to the bracket, an end of the driving arm facing away from the coil assembly is hinged with a driving rod, an end of the driving rod facing away from the driving arm is fixedly provided with a worm gear inside, and a worm is connected to the worm gear in a transmission manner; the installation tool comprises a push plate, a driving handle is rotatably provided on the push plate, and the end of the driving handle is detachably connected in a transmission manner to the end of the worm.

[0009] The bracket has a support plate, and side plates are vertically fixedly arranged on both sides of the support plate. The worm wheel is rotatably arranged between the two side plates, and the worm is rotatably arranged on the support plate.

[0010] The support plate is symmetrically provided with two limiting holes, and the push plate is fixedly provided with limiting rods matching the limiting holes.

[0011] A connecting sleeve is coaxially fixedly arranged at one end of the worm, and a driving head matching the connecting sleeve is arranged at one end of the driving handle.

[0012] A hexagonal groove is provided inside the free end of the connecting sleeve, and the driving head is a hexagonal column matching the hexagonal groove inside the free end of the connecting sleeve.

[0013] The rectification and filtering module is connected to a battery charging module, and the battery charging module is connected to the output circuit module.

[0014] A lightning protection circuit module and a discharge absorption module are connected between the CT power taking module and the rectification energy storage module.

[0015] The output circuit is connected to a sampling feedback module, the sampling feedback module is connected to an isolation optocoupler module, the isolation optocoupler module is connected to a PWM control circuit module, and the PWM control circuit module is respectively connected to the rectification energy storage module and the isolation transformer.

[0016] The sampling feedback module is used to collect voltage values ​​at the CT power supply module and the output circuit module respectively.

[0017] Beneficial effects of the present invention: (1) In the present invention, the CT power supply module uses the principle of electromagnetic induction to obtain power. Through the rectification and filtering module, it can achieve stable power output of electric energy within the normal current variation range of the wire, which can reduce the power supply cost of intelligent power equipment and increase power supply reliability; (2) Power is input to the transmission mechanism through the installation tool, and the transmission mechanism drives the coil assemblies at the ends of the two driving arms to close or open, thereby enabling the installation or removal of the induction collector, achieving rapid installation and removal, reducing the difficulty of operation and labor intensity, and improving work efficiency; (3) It allows installation while the line is energized, without the need for power outages, which greatly reduces the economic losses and social impacts caused by power outages and improves the reliability and stability of the power grid; (4) Small size, light weight, high power, extremely low heat generation, high efficiency, maintenance-free, not affected by weather, high insulation level, easy installation, stable performance, can improve power supply efficiency, and can be installed live with insulating installation tools to avoid power outages and effectively save installation and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a principle block diagram of the CT induction energy acquisition device of the electric power equipment that can be installed live in the present invention.

[0019] Figure 2 It is a structural schematic diagram of the CT power supply module in the present invention.

[0020] Figure 3 It is a structural schematic diagram of the transmission mechanism in the present invention.

[0021] Figure 4 It is the installation tool and the installation tool in the present invention.

[0022] Figure 5 It is a circuit diagram of the CT induction energy extraction device of the electric power equipment that can be installed live in the present invention. DETAILED DESCRIPTION

[0023] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is not intended to be any limitation on the present invention and its application or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete and to fully express the scope of the present invention to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limitations.

[0024] The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] like Figures 1 to 5 As shown, a CT induction energy collection device for electric power equipment that can be installed with power, includes a CT power collection module, to which an isolation transformer, a rectifier and filter module, and an output circuit module are connected; the CT power collection module has an induction collector 1 and an installation tool 2; the induction collector 1 has a bracket and two matching coil assemblies 11 of semicircular ring structure, and a driving arm 12 is fixedly provided on the opposite side of the two coil assemblies 11, and a transmission mechanism 13 is provided inside the bracket 14, and the ends of the two driving arms 12 that are away from the coil assembly 11 are connected to the transmission mechanism 13; the installation tool 2 and the transmission mechanism 13 are detachably connected in transmission; in this embodiment, the CT power collection module uses the principle of electromagnetic induction to collect electricity, and can achieve stable electric energy within the normal current variation range of the wire through the rectifier and filter module. Power output can reduce the power supply cost of intelligent power equipment and increase power supply reliability; power is input to the transmission mechanism 13 through the installation tool 2, and the transmission mechanism 13 drives the coil components 11 at the ends of the two drive arms 12 to close or open, so that the induction collector 1 can be installed or removed, and rapid installation and disassembly are achieved, which reduces the difficulty of operation and labor intensity and improves work efficiency; it allows installation when the line is energized without power outages, greatly reducing the economic losses and social impacts caused by power outages, and improving the reliability and stability of the power grid; it is small in size, light in weight, high in power, extremely low in heat generation, high in efficiency, maintenance-free, not affected by weather, high in insulation level, easy to install, and stable in performance, which can improve power supply efficiency, and can be used with the insulating installation tool 2 for live installation to avoid power outages and effectively save installation and maintenance costs.

[0026] In the above embodiment, the installation tool 2 is made of insulating material.

[0027] In some embodiments, the coil assembly 11 is detachably fixed to one end of the driving arm 12 by bolts, so that the coil assembly 11 can be replaced separately after a failure, thereby reducing maintenance costs.

[0028] In some embodiments, the transmission mechanism 13 has a support rod 134 hinged to the middle part of the driving arm 12, and the end of the support rod 134 away from the driving arm 12 is hinged to the bracket 14, and the end of the driving arm 12 away from the coil assembly 11 is hinged with a driving rod 135, and the end of the driving rod 135 away from the driving arm 12 is fixedly provided with a worm gear 131 inside, and the worm gear 131 is connected to the worm 132 in a transmission manner; the installation tool 2 has a push plate 21, and a driving handle 24 is rotatably provided on the push plate 21, and the end of the driving handle 24 is The part is detachably connected to the end of the worm 132 by transmission; in the present embodiment, the push plate 21 of the installation tool 2 is abutted against the bracket 14, and the end of the driving handle 24 is connected to the end of the worm 132 by transmission. Rotating the driving handle 24 can drive the worm 132 to rotate. When the worm 132 rotates, it drives the two worm wheels 131 on both sides to rotate. The rotation of the worm 132 drives the driving arm 12 to swing, thereby realizing the closing or opening of the two coil assemblies 11. The coil assemblies 11 are kept in a closed state by self-locking between the worm wheel 131 and the worm 132.

[0029] In some embodiments, the bracket 14 has a support plate 141, and side plates 142 are vertically fixed on both sides of the support plate 141. The worm wheel 131 is rotatably set between the two side plates 142, and the worm 132 is rotatably set on the support plate 141, and the support plate 141 provides rotational support for the worm 132.

[0030] In some embodiments, two limiting holes 143 are symmetrically provided on the support plate 141, and a limiting rod 22 matching the limiting hole 143 is fixedly provided on the push plate 21. When the push plate 21 and the support plate 141 are against each other, the limiting rod 22 is inserted into the limiting hole 143 to limit the relative rotation between the push plate 21 and the support plate 141. At this time, rotating the driving handle 24 can drive the worm 132 to rotate.

[0031] In some embodiments, a connecting sleeve 133 is concentrically fixedly provided at one end of the worm 132, and a driving head 23 matching the connecting sleeve 133 is provided at one end of the driving handle 24. The driving handle 24 and the worm 132 are connected through the matching transmission between the driving head 23 and the connecting sleeve 133.

[0032] In some embodiments, a hexagonal groove is formed inside the free end of the connecting sleeve 133 , and the driving head 23 is a hexagonal column that matches the hexagonal groove inside the free end of the connecting sleeve 133 .

[0033] In some embodiments, a battery charging module is connected to the rectifier and filter module, and the battery charging module is connected to the output circuit module; the battery charging module has an energy storage module, and the induced electricity generated by the CT power supply module can be stored in the energy storage module after being conditioned by the rectifier and filter module, thereby providing stable and reliable backup power support for the normal operation of the power equipment; the output circuit module has a load access terminal and an energy storage module access terminal, and both the load and the energy storage module can be connected to the output circuit through the output terminal interface to realize power supply to the load and energy storage of the energy storage module, and has two power supply functions combining direct power supply and energy storage module power supply.

[0034] In some embodiments, a lightning protection circuit module and a discharge absorption module are connected between the CT power supply module and the rectifier energy storage module; the lightning protection circuit module and the discharge absorption module can discharge and absorb the current when the line is short-circuited or a large range of fluctuations occurs, thereby ensuring the stability of the current, protecting subsequent circuits from damage, ensuring the normal operation of the load, increasing the service life, and reducing the accident rate.

[0035] In some embodiments, a sampling feedback module is connected to the output circuit, an isolation optocoupler module is connected to the sampling feedback module, a PWM control circuit module is connected to the isolation optocoupler module, and the PWM control circuit module is respectively connected to the rectifier energy storage module and the isolation transformer. Specifically, the sampling feedback module is used to respectively collect voltage values ​​at the CT power supply module and the output circuit module; the output of the input end of the CT power supply module and the output end of the output circuit module can be detected and collected through the sampling feedback module, and the PWM control circuit module controls the conduction state of the primary winding of the isolation transformer according to the collected results, thereby controlling the output current of the isolation transformer. The PWM control circuit module can also control the power supply end of the load. When the electric energy output by the CT power supply module is insufficient to ensure the normal operation of the load, it switches to the battery charging module for power supply to ensure the normal operation of the load.

[0036] So far, various embodiments of the present invention have been described in detail. In order to avoid obscuring the concept of the present invention, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0037] The above-mentioned embodiments only express some implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A CT induction energy extraction device for electric power equipment that can be installed live, characterized in that: It comprises a CT power supply module, to which an isolation transformer, a rectifier and filter module and an output circuit module are connected; the CT power supply module has an induction power supply and an installation tool; the induction power supply has a bracket and two matching coil assemblies of a semicircular ring structure, a driving arm is fixedly provided on the opposite sides of the two coil assemblies, a transmission mechanism is provided inside the bracket, and the ends of the two driving arms that are away from the coil assembly are connected to the transmission mechanism; the installation tool and the transmission mechanism are detachably connected in transmission.

2. The CT induction energy extraction device for electric power equipment that can be installed live according to claim 1 is characterized in that: The transmission mechanism comprises a support rod hinged to the middle part of the driving arm, an end of the support rod facing away from the driving arm is hinged to the bracket, an end of the driving arm facing away from the coil assembly is hinged with a driving rod, an end of the driving rod facing away from the driving arm is fixedly provided with a worm gear inside, and a worm is connected to the worm gear in a transmission manner; the installation tool comprises a push plate, a driving handle is rotatably provided on the push plate, and the end of the driving handle is detachably connected in a transmission manner to the end of the worm.

3. The CT induction energy extraction device for electric power equipment that can be installed live according to claim 2 is characterized in that: The bracket has a support plate, and side plates are vertically fixedly arranged on both sides of the support plate. The worm wheel is rotatably arranged between the two side plates, and the worm is rotatably arranged on the support plate.

4. The CT induction energy extraction device for electric power equipment that can be installed live according to claim 3 is characterized in that: The support plate is symmetrically provided with two limiting holes, and the push plate is fixedly provided with limiting rods matching the limiting holes.

5. The CT induction energy extraction device for electric power equipment that can be installed live according to claim 2 is characterized in that: A connecting sleeve is coaxially fixedly arranged at one end of the worm, and a driving head matching the connecting sleeve is arranged at one end of the driving handle.

6. The CT induction energy extraction device for electric power equipment that can be installed live according to claim 5 is characterized in that: A hexagonal groove is provided inside the free end of the connecting sleeve, and the driving head is a hexagonal column matching the hexagonal groove inside the free end of the connecting sleeve.

7. The CT induction energy extraction device for electric power equipment that can be installed live according to claim 1 is characterized in that: The rectification and filtering module is connected to a battery charging module, and the battery charging module is connected to the output circuit module.

8. The CT induction energy extraction device for electric power equipment that can be installed live according to claim 1 is characterized in that: A lightning protection circuit module and a discharge absorption module are connected between the CT power taking module and the rectification energy storage module.

9. The CT induction energy extraction device for electric power equipment that can be installed live according to claim 1 is characterized in that: The output circuit is connected to a sampling feedback module, the sampling feedback module is connected to an isolation optocoupler module, the isolation optocoupler module is connected to a PWM control circuit module, and the PWM control circuit module is respectively connected to the rectification energy storage module and the isolation transformer.

10. The CT induction energy extraction device for electric power equipment that can be installed live according to claim 1, characterized in that: The sampling feedback module is used to collect voltage values ​​at the CT power supply module and the output circuit module respectively.

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