Outdoor portable vehicle-mounted lightning protection unit counter passive zero clearing instrument

Abstract

The utility model provides a passive zero clearing instrument for an outdoor portable vehicle-mounted lightning protection unit counter, and belongs to the field of lightning protection unit counters. The device comprises a passive charging module, an inversion boost circuit and a signal output device. The passive charging module is electrically connected with the power supply; the passive charging module is used for providing direct current for the zero clearing instrument; the inversion boost circuit is electrically connected with the passive charging module. The inversion booster circuit is used for converting the received direct current into alternating current; the signal output device is electrically connected with the inverter booster circuit; and the signal output device is used for converting the alternating current into a pulse signal to trigger the zero clearing action of the counter of the lightning protection unit. According to the utility model, zero returning, counting sensitivity and action tests of the outdoor passive installation lightning protection unit counter at a non-zero position can be realized. The device is small in size, convenient to construct and carry, plug-and-play, and wide in application range.

Description

Technical Field

[0001] The utility model belongs to the field of lightning protection unit counters, and in particular relates to an outdoor portable vehicle-mounted lightning protection unit counter passive zeroing instrument. Background Art

[0002] In areas where lightning strikes frequently, lightning arresters are essential for protecting the safety of vehicles and their internal equipment. As a key component of lightning arresters, lightning arrester counters can accurately record the number of working times and status of lightning arresters, providing an important basis for the maintenance and replacement of lightning arresters. However, the traditional way of clearing lightning arrester counters usually requires wired connections or specific equipment. This method is not only complicated to operate in outdoor environments, but also easily affected by bad weather, resulting in failure of the clearing operation or damage to the counter.

[0003] And with the widespread use of electric power generation, the following problems still exist:

[0004] (1) The instrument is required to return to zero before power is turned on on site, because there is usually no pulse power supply on site in the initial stage of foundation;

[0005] (2) The electric field is located in an open area, and the damage caused by lightning is serious, and the product needs to be frequently replaced and inspected;

[0006] (3) Disassembly is time-consuming and labor-intensive, but on-site disassembly-free testing and zeroing can be achieved.

[0007] In recent years, with the continuous development of science and technology, especially the popularization of wireless technology and portable devices, new possibilities have been provided for the reset operation of lightning protection unit counters. Utility Model Content

[0008] In order to solve the problems existing in the prior art, the utility model provides an outdoor portable vehicle-mounted lightning protection unit counter passive zeroing instrument, which can reliably realize the zeroing and debugging of a variety of convenient counters, has simple construction and operation, is simple and easy to carry, has comprehensive protection measures, has no safety hazards, is easy to adjust, is simple and easy to carry, and can meet the needs of special and harsh environment inspections and emergency use.

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] The utility model provides an outdoor portable vehicle-mounted lightning protection unit counter passive zeroing instrument, which comprises a passive charging module, an inverter boost circuit and a signal output device.

[0011] The passive charging module is electrically connected to the power supply; the passive charging module is used to provide direct current for the zeroing instrument.

[0012] The inverter boost circuit is electrically connected to the passive charging module; the inverter boost circuit is used to convert the received direct current into alternating current.

[0013] The signal output device is electrically connected to the inverter boost circuit; the signal output device is used to convert the alternating current into a pulse signal to trigger the reset action of the lightning protection unit counter.

[0014] Preferably, the passive charging module includes a sampling vehicle power plug connector and a switch control module electrically connected thereto; the sampling vehicle power plug connector is electrically connected to a vehicle power source or a portable battery source.

[0015] Preferably, the switch control module is electrically connected to an indication signal device.

[0016] Preferably, the inverter boost circuit comprises a plurality of inverter boost units connected in series.

[0017] Preferably, the inverter boost unit includes a diode and a capacitor connected in parallel therewith.

[0018] Preferably, the signal output device includes a trigger pulse electronic element and a linear filter output device electrically connected thereto.

[0019] Preferably, the linear filter output device is electrically connected to a counter reset terminal.

[0020] Preferably, the linear filter output device comprises a capacitor; one end of the capacitor is connected to the output positive terminal, and the other end is connected to the ground flange output terminal of the circuit.

[0021] Preferably, the passive zeroing instrument further includes a current limiting device; the current limiting device is electrically connected to the inverter boost circuit.

[0022] Preferably, the current limiting device includes a plurality of resistors; the resistors are connected in series with the inverter boost circuit.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] The utility model includes a passive charging module, an inverter boost circuit and a signal output device. By connecting the passive charging module to a power source, it is possible to obtain power conveniently and quickly outdoors. By using the inverter boost circuit and the signal output device, it is possible to reset the counter of the outdoor passive lightning protection unit that is not at zero, and perform counting sensitivity and action tests. The utility model is compact and convenient to carry during construction, plug and play, and has a wide range of applications, especially for operation and maintenance of electric field inspection test records, daily inspections, and passive operations after power outages, which are convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are for explanation purposes only and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only for illustration purposes to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the components of the present invention.

[0026] In the attached picture:

[0027] Figure 1 This is a schematic block diagram of the principle module of an outdoor portable vehicle-mounted lightning protection unit counter passive zeroing instrument of the utility model;

[0028] Figure 2 The utility model is a schematic diagram of the main circuit structure of an outdoor portable vehicle-mounted lightning protection unit counter passive zeroing instrument. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solutions in the present invention, 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 should fall within the scope of protection of the present invention.

[0030] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0031] The utility model discloses a passive zeroing instrument for an outdoor portable vehicle-mounted lightning protection unit counter, including a passive charging module, an inverter boost circuit and a signal output device. The passive charging module is electrically connected to a power source, and the passive charging module is used to provide direct current to the zeroing instrument, ensuring that the zeroing instrument can work continuously and stably in an outdoor or vehicle-mounted environment without worrying about power supply problems. The inverter boost circuit is electrically connected to the passive charging module; the inverter boost circuit is used to convert the received direct current into alternating current, and at the same time can convert the input lower voltage into a higher voltage to meet the working requirements of the zeroing instrument; the signal output device is electrically connected to the inverter boost circuit; the signal output device is used to convert the alternating current into a pulse signal, thereby triggering the zeroing action of the lightning protection unit counter.

[0032] Example 1

[0033] like Figure 1 As shown, the passive charging module includes a sampling vehicle power plug connector and a switch control module electrically connected thereto; the sampling vehicle power plug connector is electrically connected to a vehicle power source or a portable battery source, and can provide power for an outdoor passive installation lightning protection unit counter. The switch control module can control the switch state of the zeroing instrument and the switching of the working states of various functional modules; the switch control module is electrically connected to an indication signal device, and can switch the switch state of the zeroing instrument according to the signal indication of the indication signal device.

[0034] The inverter voltage circuit includes a plurality of inverter boost units connected in series in sequence; the inverter boost unit includes a diode and a capacitor connected in parallel therewith. When the diode is in a forward biased state, its positive electrode voltage is higher than the negative electrode voltage, it will be turned on, allowing current to pass, and the current will flow through the capacitor connected in parallel therewith and charge it, storing the electrical energy. When the diode is in a reverse biased state, its positive electrode voltage is lower than the negative electrode voltage, the diode will be cut off and no longer allow current to pass. At this time, the electrical energy previously stored in the capacitor will be released. Due to the characteristics of the capacitor, the capacitor will generate a higher voltage than the original voltage when releasing electrical energy, thereby achieving a voltage boost; at the same time, the direct current in the circuit can be converted into alternating current.

[0035] The signal output device includes a trigger pulse electric unit and a linear filter output device electrically connected thereto. The trigger pulse unit receives an electrical signal to generate a pulse signal for a zeroing operation, triggers the zeroing action of the lightning protection unit counter, realizes a fast and accurate zeroing of the counter, ensures that the lightning protection unit counter can restart counting, and avoids problems such as counting errors or overflows. The linear filter output device filters the pulse signal of the zeroing operation to remove noise and interference, thereby improving the stability and accuracy of the signal, and ensuring that the pulse signal after the zeroing operation can accurately reflect the actual state of the lightning protection unit. The linear filter output device is electrically connected to the zeroing end of the counter; the linear filter output device includes a capacitor; one end of the capacitor is connected to the output positive end, and the other end is connected to the ground flange output end of the circuit. The passive zeroing instrument also includes a current limiting device; the current limiting device is electrically connected to the inverter boost circuit. The current limiting device includes a plurality of resistors; the resistors are connected in series with the inverter boost circuit. The current limiting device can limit the current in the circuit, ensure that the current does not exceed the rated value of the equipment, protect the circuit and equipment from damage, and protect the inverter boost circuit.

[0036] Example 2

[0037] like Figure 2As shown, the utility model includes a passive charging module, an inverter boost circuit and a signal output device. The passive charging module includes a sampling vehicle power plug connector and a switch K1, the vehicle power plug connector is electrically connected to the vehicle power DC, the control switch K1 is electrically connected to the vehicle power plug connector, and the switch of the control circuit.

[0038] The inverter boost circuit includes a diode D1, a diode D2 and a diode D3 connected in series in sequence, and a capacitor C1, a capacitor C2 and a capacitor C3 connected in parallel with the diode D1, the diode D2 and the diode D3 respectively; the inverter boost circuit is used to convert the direct current received from the passive charging module into alternating current, and can also convert the input lower voltage into a higher voltage. The inverter boost circuit ensures the normal operation of the circuit and the effective processing of the signal.

[0039] The signal output device includes a trigger pulse unit and a linear filter output device electrically connected thereto. The trigger pulse unit receives an electrical signal and generates a pulse signal for a zeroing operation after digital-to-analog conversion, triggering the zeroing action of the lightning protection unit counter. The linear filter output device is electrically connected to the zeroing end of the counter; the linear filter output device includes a capacitor C4; one end of the capacitor C4 is connected to the output positive end, and the other end is connected to the ground flange output end of the circuit.

[0040] The passive zeroing instrument also includes a current limiting device; the current limiting device is electrically connected to the inverter boost circuit. The current limiting device includes a plurality of resistors; the resistors are connected in series with the inverter boost circuit. The resistors include resistor RX, resistor R2, and resistor RJ. The current limiting device can limit the current in the circuit, ensure that the current does not exceed the rated value of the device, and protect the circuit and the device from damage.

[0041] When used outdoors, only a car power supply or a portable battery source is needed. The positive and negative connecting wires of the device output by the utility model can be clamped at both ends of the counter respectively. There is no need to remove any fixings and connecting wires of the counter. By triggering the drive switch button, the counter can be quickly driven to zero and the test counter can be tested to have good action, which is convenient for installation, construction inspection and modification.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

Claims

1. An outdoor portable vehicle-mounted lightning protection unit counter passive zeroing instrument, characterized in that: It includes a passive charging module, an inverter boost circuit and a signal output device; The passive charging module is electrically connected to the power supply; the passive charging module is used to provide direct current to the zeroing instrument; The inverter boost circuit is electrically connected to the passive charging module; the inverter boost circuit is used to convert the received direct current into alternating current; The signal output device is electrically connected to the inverter boost circuit; the signal output device is used to convert the alternating current into a pulse signal to trigger the reset action of the lightning protection unit counter.

2. The outdoor portable vehicle-mounted lightning protection unit counter passive zeroing instrument according to claim 1 is characterized in that: The passive charging module includes a sampling vehicle-mounted power plug connector and a switch control module electrically connected thereto; the sampling vehicle-mounted power plug connector is electrically connected to a vehicle-mounted power source or a portable battery source.

3. The outdoor portable vehicle-mounted lightning protection unit counter passive zeroing instrument according to claim 2 is characterized in that: The switch control module is electrically connected to an indication signal device.

4. The outdoor portable vehicle-mounted lightning protection unit counter passive zeroing instrument according to claim 1 is characterized in that: The inverter boost circuit comprises a plurality of inverter boost units connected in series.

5. The outdoor portable vehicle-mounted lightning protection unit counter passive zeroing instrument according to claim 4 is characterized in that: The inverter boost unit includes a diode and a capacitor connected in parallel with the diode.

6. The outdoor portable vehicle-mounted lightning protection unit counter passive zeroing instrument according to claim 1 is characterized in that: The signal output device comprises a trigger pulse electric element and a linear filter output device electrically connected thereto.

7. The outdoor portable vehicle-mounted lightning protection unit counter passive zeroing instrument according to claim 6 is characterized in that: The linear filter output device is electrically connected to the counter reset terminal.

8. The outdoor portable vehicle-mounted lightning protection unit counter passive zeroing instrument according to claim 6 is characterized in that: The linear filter output device comprises a capacitor; one end of the capacitor is connected to the output positive end, and the other end is connected to the ground flange output end of the circuit.

9. The outdoor portable vehicle-mounted lightning protection unit counter passive zeroing instrument according to claim 1 is characterized in that: The passive zeroing instrument also includes a current limiting device; the current limiting device is electrically connected to the inverter boost circuit.

10. The outdoor portable vehicle-mounted lightning protection unit counter passive zeroing instrument according to claim 9, characterized in that: The current limiting device includes a plurality of resistors; the resistors are connected in series with the inverter boost circuit.

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