CN215266705U - Protection device, novel protection circuit and electronic equipment - Google Patents
Protection device, novel protection circuit and electronic equipment Download PDFInfo
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- CN215266705U CN215266705U CN202121489051.7U CN202121489051U CN215266705U CN 215266705 U CN215266705 U CN 215266705U CN 202121489051 U CN202121489051 U CN 202121489051U CN 215266705 U CN215266705 U CN 215266705U
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Abstract
The utility model belongs to the technical field of electrical safety, a protection device, novel protection circuit and electronic equipment are provided, include: the antenna comprises an antenna, a drainage inner core, a dielectric medium, a front-stage sleeve, a rear-stage sleeve and an insulating shell, wherein the dielectric medium is used for consuming surge energy and reducing energy discharge to the ground and wraps a protection device; meanwhile, the released energy is consumed, the energy to the ground is reduced, the overvoltage and the overcurrent of the grounding system are reduced, and the safety protection of the grounding system of the protected object is realized.
Description
Technical Field
The utility model belongs to the technical field of electrical safety, especially, relate to a protection device, novel protection circuit and electronic equipment.
Background
The largest electromagnetic interference in nature is mainly interference sources caused by lightning (direct lightning, inductive lightning, ground electric waves), operation overvoltage, variable frequency short circuit and the like. In the aspect of lightning protection, the existing direct lightning protection mainly uses an antenna, a lightning strip, a lightning net and the like to discharge lightning energy, and specifies a lead wire with a certain specification and a discharge earth screen buried underground. Modern lightning protection devices are very diverse, but most of them have drawbacks, such as: modern external lightning protection is that lightning energy is directly led into underground through the downlead through the arrester, because voltage is too big and very powerful electromagnetic field is produced easily, has certain damage effect to electrical equipment on every side, and modern antenna is usually only the bottom fixed simultaneously. In addition, the interference waves of the lightning waves, the earth waves, the information systems (devices) and the like generate related interference on the communication systems, the electronic devices and the current, and even damage to the protected systems (devices/circuits) through the form of energy conversion.
Therefore, the existing lightning protection technology has the problem that lightning is directly led into the ground through a down lead by a lightning receptor, and a very strong electromagnetic field is easily generated due to overlarge voltage, so that certain damage is caused to surrounding electrical equipment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a protection device, novel protection circuit and electronic equipment aim at solving current overvoltage, overcurrent protection technique and have because of directly leading-in underground through the downlead with the thunder and lightning through the arrester, because overvoltage, overcurrent too big produce very powerful electromagnetic field easily, lead to causing the problem of certain damage to electrical equipment on every side.
The utility model discloses a first aspect provides a protection device, include:
an antenna;
the drainage inner core is connected with the antenna and is used for draining the current from the antenna;
a dielectric coupled to the drainage core for dissipating interference source energy and reducing ground leakage;
a front stage sleeve and a rear stage sleeve for confining movement of the dielectric; and
and the insulating shell is arranged on the surface of the dielectric medium.
In one embodiment, the dielectric includes a plurality of energy absorbing layers disposed in a stack.
In one embodiment, a plurality of the energy absorbing layers are connected by an inner drainage core.
In one embodiment, the protection device further comprises:
a foreline connected to the insulating shell;
a post tube connected to the insulating case;
the foreline sleeve is connected with the foreline in any one mode of threads, line baits or crimping;
the rear-stage sleeve is connected with the rear-stage pipe in any one of a threaded mode, a wire bait mode and a crimping mode.
The utility model discloses the second aspect still provides a novel protection circuit, novel protection circuit includes:
the frequency selection filtering module is connected with the channel and used for receiving the signal output by the working system and filtering an interference signal generated by an external interference source;
the control module is connected with the frequency-selecting filtering module and used for outputting an optimized signal to a protected object (including equipment, a system, a circuit and the like) after voltage monitoring, current monitoring and distortion compensation are carried out on the signal of the interference source intrusion channel;
the surge suppression unit is connected with the channel and the frequency-selective filtering module and is used for performing surge protection on the signal of the interference source invading channel; and
the protection device is connected with the surge suppression unit and used for limiting the current of the surge protected signal and guiding the current to the ground.
In one embodiment, the frequency selective filtering module comprises:
two paths of frequency selecting and filtering units;
the first end of the first path of frequency-selecting filtering unit is connected with the first end of the interference source channel, the first end of the second path of frequency-selecting filtering unit is connected with the second end of the interference source channel, and the second ends of the two paths of frequency-selecting filtering units are connected with the control module.
In one embodiment, the control module comprises:
the voltage monitor is used for monitoring the voltage of the signal of the interference source intrusion channel to obtain a voltage value;
the current monitor is used for monitoring the current of the signal output by the interference source intrusion channel to obtain a current value;
the voltage stabilizing controller is used for carrying out distortion compensation on the signal output by the interference source intrusion channel according to the voltage value and the current value; and
and the microcontroller is respectively connected with the voltage monitor, the current monitor and the voltage stabilizing controller and is used for controlling the voltage monitor, the current monitor and the voltage stabilizing controller to work.
In one embodiment, the surge suppression unit comprises a plurality of bleed units connected in parallel.
In one embodiment, the intrusion channel of the interference source is an ac power supply with a preset voltage value.
A third aspect of the present invention provides an electronic device, comprising a novel protection circuit according to any one of the embodiments described above.
The utility model provides a pair of protection device, novel protection circuit and electronic equipment, protection device includes: the antenna comprises an antenna, a dielectric medium, a front-stage sleeve, a rear-stage sleeve and an insulating shell, wherein the dielectric medium is used for reducing energy discharge and wraps the antenna; meanwhile, the released energy is consumed, the energy to the ground is reduced, the transient high voltage of the ground is reduced, and the ground safety protection is realized.
Drawings
Fig. 1 is a schematic structural diagram of a protection device according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a module structure of a novel protection circuit according to an embodiment of the present invention.
Fig. 3 is a circuit diagram illustrating a novel protection circuit according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The lightning arrester and the novel protection circuit comprise a frequency-selecting filtering module, a control module, a surge suppression unit and a protection device, wherein after interference signals generated by an external interference source are filtered, voltage monitoring, current monitoring and distortion compensation are carried out on power signals output by a channel and related working system signals, and optimized signals are output to protected objects (including equipment, systems, circuits and the like); meanwhile, the signal output by the interference source intrusion channel 101 is subjected to surge protection and current limitation, and then the current is led to the ground. Thereby filtering the non-working frequency band intrusion source and releasing/bleeding/discharging energy; distortion compensation is carried out on the conditions of overvoltage, overcurrent, undervoltage and undercurrent of a power supply circuit, and normal operation of a protected object is ensured; meanwhile, the released/discharged energy is consumed, the energy to the ground is reduced, the transient high voltage of the ground is reduced, and the ground safety protection is realized.
Fig. 1 is a schematic structural diagram of a protection device according to an embodiment of the present invention, and as shown in fig. 1, the protection device includes an antenna 601, a dielectric 602, a front stage sleeve 603, a rear stage sleeve 604, an insulating shell 605, and a current guiding inner core 606; wherein the current-guiding core 606 is connected to the antenna 601 for guiding current from the antenna, and the dielectric 602 is connected to the current-guiding core 606 for consuming the energy of the interference source and reducing the leakage to the ground; the front stage sleeve 603 and the rear stage sleeve 604 are used for limiting the movement of the dielectric 602, and the surface of the dielectric 602 is provided with an insulating shell 605.
In one embodiment, the dielectric 602 may include a plurality of energy absorbing layers, and the plurality of energy absorbing layers are disposed in a stack. Meanwhile, an insulating case is often put on the outermost dielectric cover for safety.
In one embodiment, multiple energy absorbing layers may be connected by the drainage core 606, wherein the energy absorbing layers may be made of an energy absorbing media material.
In one embodiment, the protection device further comprises: the front-stage pipe is connected with the insulating shell, the rear-stage pipe is connected with the insulating shell, the front-stage sleeve is connected with the front-stage pipe in any mode of threads, wire baits or crimping, and the rear-stage sleeve is connected with the rear-stage pipe in any mode of threads, wire baits or crimping.
In this implementation, the front-stage tube can be used as a discharge channel for lightning, external interference waves and high-energy invasion, the dielectric medium 602 is made of multiple layers of energy absorption medium materials, a large amount of energy can be consumed, and the discharge of energy is reduced, and the rear-stage tube can be used for the discharge of a small amount of energy of lightning and external interference waves.
In one embodiment, the energy absorbing medium material may be a medium type wave absorbing material, and the medium type wave absorbing material is composed of a base material (organic or inorganic binder) and an electrical loss filler (carbon black, graphite, conductive particles or conductive fibers, etc.). The dielectric wave-absorbing material should have surface impedance approximately matched with that of free space so as to guide most of the energy of the interference source into the material, and then dissipate and absorb the energy therein.
The protection device can be quickly digested and absorbed after receiving lightning, and the influence of an electromagnetic field generated by the down-lead device on surrounding electrical equipment is reduced.
Fig. 2 shows a module structure of a novel protection circuit provided by an embodiment of the present invention, and for convenience of description, only the parts related to this embodiment are shown, which are detailed as follows:
the novel protection circuit comprises a frequency-selecting filtering module 102, a control module 103, a surge suppression unit 105 and a protection device 106.
The frequency-selective filtering module 102 is connected to the interference source intrusion channel 101, and is configured to receive a signal output by the interference source intrusion channel 101 and filter an interference signal generated by an external interference source.
The control module 103 is connected to the frequency-selective filtering module 102, and is configured to output an optimized signal to a protected object 104 (including devices, systems, circuits, and the like) after performing voltage monitoring, current monitoring, and distortion compensation on a signal output by the interference source intrusion channel 101.
The surge suppression unit 105 is connected to the interference source intrusion channel 101 and the frequency-selective filtering module 102, and is configured to perform surge protection on a signal output by the interference source intrusion channel 101.
The protection device 106 is connected to the surge suppression unit 105, and is configured to limit a current of the power supply signal after surge protection and then lead the current to the ground.
As an embodiment of the present invention, the external interference source refers to the intrusion of external interference electric waves (including surge, lightning current, etc.), and then the above-mentioned novel protection circuit filters the intrusion interference waves and converts and limits the release of the energy of the intrusion electric waves.
As an embodiment of the present invention, the above control module 103 performs voltage monitoring, current monitoring and distortion compensation on the signal output from the intrusion channel 101, and performs distortion compensation on the protected object (including device, system, circuit, etc.) and its circuit to achieve stable control when the phenomena of overvoltage, overcurrent, undervoltage and undercurrent occur.
As an embodiment of the present invention, the novel protection circuit filters an intrusion source in a non-working frequency band, and releases/discharges energy; meanwhile, the energy released/discharged is consumed by the surge suppression unit 105 and the protection device 106, so that the energy to the ground is reduced, the transient high voltage of the ground is reduced, and the ground safety protection is realized; in addition, the control module 103 performs distortion compensation on overvoltage, overcurrent, undervoltage and undercurrent phenomena occurring on the related power supply and lines, so as to ensure that the protected object (the protected object comprises equipment, a system, a circuit and the like) 104 operates normally.
Fig. 3 shows an example circuit of a novel protection circuit provided by an embodiment of the present invention, and for convenience of description, only the part related to the embodiment is shown, and detailed descriptions are as follows:
as an embodiment of the present invention, the frequency-selective filtering module 102 includes a frequency-selective filtering unit 1021 and a frequency-selective filtering unit 1022;
a first end of the frequency-selective filtering unit 1021 is connected to one end L of the interference source intrusion channel 101, a first end of the frequency-selective filtering unit 1022 is connected to the other end N of the interference source intrusion channel 101, and a second end of the frequency-selective filtering unit 1021 and a second end of the frequency-selective filtering unit 1022 are connected to the control module 103. The frequency-selective filtering unit 1021 and the frequency-selective filtering unit 1022 are both implemented by using existing devices with inductive reactance function.
As an embodiment of the present invention, the control module 103 includes a microprocessor 1031, a voltage monitor 1032, a current monitor 1033, and a voltage stabilizing controller 1034;
the voltage monitor 1032 is configured to perform voltage monitoring on a signal output by the interference source intrusion channel 101 to obtain a voltage value;
the current monitor 1033 is used for monitoring the current of the signal output by the interference source intrusion channel 101 to obtain a current value;
the voltage stabilizing controller 1034 is configured to perform distortion compensation on the signal output by the interference source intrusion channel 101 according to the voltage value and the current value;
the microcontroller 1031 is connected to the voltage monitor 1032, the current monitor 1033, and the voltage regulation controller 1034 respectively, and is configured to control the operations of the voltage monitor 1032, the current monitor 1033, and the voltage regulation controller 1034.
As an embodiment of the present invention, the surge suppressing unit 105 includes a plurality of bleeding units connected in parallel (fig. 3 shows the bleeding unit 1, the bleeding unit 2 … …, the bleeding unit n-1, and the bleeding unit n).
The utility model also provides a current limiting device, including interference source invasion channel 101, still include as above-mentioned novel protection circuit. The device solves the problem that the power utilization system, the information system and the personnel are damaged by ground potential counterattack, can prevent surge, interference wave, overcurrent and undercurrent from passing through, and plays the roles of voltage limiting, current limiting and distortion compensation.
Specifically, the interference source intrusion channel 101 may include an ac power source having a preset voltage value, the power source portion of the interference source intrusion channel 101 is not limited to the ac power source, and the dc power source is also applicable.
The working principle of the protection device, the novel protection circuit and the electronic device is described below with reference to fig. 1 to 3 as follows:
firstly, when a non-working frequency band (namely, surge, external electromagnetic source and other external interference sources pass through a protected object) invades, the frequency-selecting filtering unit 1021 and the frequency-selecting filtering unit 1022 can filter the non-working frequency band, forbid the non-working frequency band from invading the protected object (including equipment, a system, a circuit and the like) through a cable, start the capability release/discharge of a front-stage discharge unit to the invasion source of the non-working frequency band, and simultaneously start a rear-stage discharge unit to continue to release/discharge the residual quantity, thereby preventing the external interference source/energy from invading to damage the protected object (including the equipment, the system, the circuit and the like) and improving the safety protection level; therefore, the novel protection circuit has no negative influence on the working frequency band, has no negative effects such as filtering, blocking, isolation and the like, and ensures that the protected object (including equipment, a system, a circuit and the like) works normally;
then, because the external power supply system, the transformer, the internal power supply and other power supplies are unstable or the internal circuit is consumed and abnormal, the phenomena of overvoltage, overcurrent, undervoltage, undercurrent and the like of the protected object (including equipment, a system, a circuit and the like) and the circuit thereof are often caused, so that the novel protection circuit is used for finishing the stable control of the protected object (including the equipment, the system, the circuit and the like) and the circuit overvoltage, the multiple currents, the undervoltage and the undercurrent, and can finish distortion compensation, thereby ensuring the normal operation of the protected object (including the equipment, the system, the circuit and the like) without being influenced;
and the current is limited after receiving the energy released/discharged by the discharging unit (not only applied to the circuit, but also directly applied to the voltage-limiting current-limiting channel of overvoltage and overcurrent, and the device is mainly used for consuming energy such as surge/high electromagnetism, and the like), the energy is consumed, the energy released/discharged to the ground is reduced, the transient high potential of the ground is reduced, the ground safety protection effect is realized, and the high-voltage danger of adjacent facilities/systems/equipment/current/personnel is reduced.
Therefore, the protection device, the novel protection circuit and the electronic device have the advantages that:
(1) the current-limiting protection of the system, the equipment and the circuit is used for maintaining a working frequency band, filtering an abnormal frequency band, automatically protecting overvoltage and overcurrent, and automatically alarming and compensating undervoltage and undercurrent;
(2) the current limiting of the electronic equipment reduces the release/discharge of surge/external electromagnetic energy/lightning to the ground, reduces the transient high potential of the ground and prevents ground potential counterattack;
(3) a protection mode of multi-level interference frequency band and energy release;
(4) intrusion waves, energy absorption, conversion and current limiting.
To sum up, the embodiment of the present invention provides a protection device, a novel protection circuit and an electronic device, wherein the novel protection circuit includes a frequency-selective filtering module, a control module, a surge suppression unit and a protection device, after filtering an interference signal generated by an external interference source, the novel protection circuit performs voltage monitoring, current monitoring and distortion compensation on a signal of an interference source intrusion channel, and outputs an optimized signal to a protected object (including a device, a system, a circuit, etc.); meanwhile, the signal output by the interference source intrusion channel 101 is subjected to surge protection and current limitation, and then the current is led to the ground. Thereby filtering the non-working frequency band intrusion source and releasing/bleeding/discharging energy; distortion compensation is carried out on the conditions of overvoltage, overcurrent, undervoltage and undercurrent of a power supply circuit, and normal operation of a protected object is ensured; meanwhile, the energy released/discharged is consumed, the energy to the ground is reduced, the transient high voltage of the ground is reduced, the ground safety protection is realized, and the problem that certain damage is caused to surrounding electrical equipment due to the fact that lightning is directly led into the ground through a down lead by a lightning arrester and a very strong electromagnetic field is easily generated due to overlarge voltage in the existing lightning protection technology is solved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A protective device, comprising:
an antenna;
the drainage inner core is connected with the antenna and is used for draining the current from the antenna;
a dielectric coupled to the drainage core for dissipating interference source energy and reducing ground leakage;
a front stage sleeve and a rear stage sleeve for confining movement of the dielectric; and
and the insulating shell is arranged on the surface of the dielectric medium.
2. The protective device of claim 1, wherein the dielectric comprises a plurality of energy absorbing layers disposed in a stack.
3. The protective device of claim 2, wherein a plurality of the energy absorbing layers are connected by an inner drainage core.
4. The protection device of claim 1, further comprising:
a foreline connected to the insulating shell;
a post tube connected to the insulating case;
the foreline sleeve is connected with the foreline in any one mode of threads, line baits or crimping;
the rear-stage sleeve is connected with the rear-stage pipe in any one of a threaded mode, a wire bait mode and a crimping mode.
5. A novel protection circuit, characterized in that the novel protection circuit comprises:
the frequency-selecting filtering module is connected with the interference source intrusion channel and used for receiving the signal of the interference source intrusion channel and filtering interference signals generated by an external interference source;
the control module is connected with the frequency-selective filtering module and used for outputting an optimized signal to a protected object after voltage monitoring, current monitoring and distortion compensation are carried out on the signal of the interference source intrusion channel;
the surge suppression unit is connected with the interference source intrusion channel and the frequency-selecting filtering module and is used for performing surge protection on signals of the interference source intrusion channel; and
the protection device of any one of claims 1-4, wherein the protection device is connected to the surge suppression unit, and is configured to limit a current of the surge-protected signal and then to direct the current to the ground.
6. The novel protection circuit of claim 5, wherein said frequency selective filtering module comprises:
two paths of frequency selecting and filtering units;
the first end of the first path of frequency-selecting filtering unit is connected with the first end of the interference source channel, the first end of the second path of frequency-selecting filtering unit is connected with the second end of the interference source channel, and the second ends of the two paths of frequency-selecting filtering units are connected with the control module.
7. The novel protection circuit of claim 5, wherein the control module comprises:
the voltage monitor is used for monitoring the voltage of the signal of the interference source intrusion channel to obtain a voltage value;
the current monitor is used for monitoring the current of the signal output by the interference source intrusion channel to obtain a current value;
the voltage stabilizing controller is used for carrying out distortion compensation on the signal output by the interference source intrusion channel according to the voltage value and the current value; and
and the microcontroller is respectively connected with the voltage monitor, the current monitor and the voltage stabilizing controller and is used for controlling the voltage monitor, the current monitor and the voltage stabilizing controller to work.
8. The novel protection circuit of claim 5, wherein the surge suppression unit comprises a plurality of bleed units connected in parallel.
9. The novel protection circuit of claim 5, wherein the intrusion channel of the interference source is an AC power source with a predetermined voltage value.
10. An electronic device, characterized in that it comprises a novel protection circuit according to any one of claims 5 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121489051.7U CN215266705U (en) | 2021-06-30 | 2021-06-30 | Protection device, novel protection circuit and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121489051.7U CN215266705U (en) | 2021-06-30 | 2021-06-30 | Protection device, novel protection circuit and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215266705U true CN215266705U (en) | 2021-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121489051.7U Active CN215266705U (en) | 2021-06-30 | 2021-06-30 | Protection device, novel protection circuit and electronic equipment |
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| Country | Link |
|---|---|
| CN (1) | CN215266705U (en) |
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2021
- 2021-06-30 CN CN202121489051.7U patent/CN215266705U/en active Active
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