CN210577777U - Single-phase lightning protection device - Google Patents
Single-phase lightning protection device Download PDFInfo
- Publication number
- CN210577777U CN210577777U CN201921337337.6U CN201921337337U CN210577777U CN 210577777 U CN210577777 U CN 210577777U CN 201921337337 U CN201921337337 U CN 201921337337U CN 210577777 U CN210577777 U CN 210577777U
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- Prior art keywords
- protection device
- lightning protection
- circuit board
- phase lightning
- welding
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- 238000003466 welding Methods 0.000 claims abstract description 39
- 238000005476 soldering Methods 0.000 claims description 17
- 239000000919 ceramic Substances 0.000 claims description 11
- 230000001012 protector Effects 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 4
- 230000007935 neutral effect Effects 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 238000002788 crimping Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
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Abstract
The utility model discloses a single-phase lightning protection device, single-phase lightning protection device encapsulation are the circuit board, have preset a plurality of welding position on the circuit board, and a plurality of welding position include: the welding positions of the three piezoresistors R1, R2 and R3, and the welding position of the discharge tube F1. The utility model discloses a single-phase lightning protection device designs into the form of circuit board welding piezo-resistor and discharge tube with single-phase lightning protection device, simple structure, low cost.
Description
Technical Field
The utility model relates to a power technical field, more specifically relates to a single-phase lightning protection device.
Background
A lightning protector is a lightning protection device connected between a conductor and ground, usually in parallel with the protected device. The lightning protector is also called a lightning arrester, a surge protector or an overvoltage protector, and has the main function of reducing the amplitude of an invading flowing wave through the action of a parallel discharge gap or a nonlinear resistor, so that the overvoltage value borne by protected equipment is reduced, and the effect of protecting power equipment is achieved.
The lightning protection device can effectively protect the power equipment, and once abnormal voltage appears, the lightning protection device plays a role in protection. Specifically, when the protected device operates at normal operating voltage, the lightning protection device does not function and is considered as an open circuit to the ground. Once high voltage occurs and the insulation of protected equipment is endangered, the lightning protector acts immediately to guide high-voltage impact current to the ground, so that the voltage amplitude is limited and the insulation of electrical equipment is protected. When the overvoltage disappears, the lightning protection device is rapidly restored to the original state, so that the system can normally supply power.
At present, in a single-phase lightning protection device widely used in a low-voltage distribution system, a power line L, N is embedded with a lightning protection type piezoresistor module respectively in the design, however, the whole lightning protection device is designed into a guide rail installation form, and the design structure is complex and high in cost.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a single-phase lightning protection device, single-phase lightning protection device encapsulation is the circuit board, preset a plurality of welding position on the circuit board, a plurality of welding position include: the welding positions of the three piezoresistors R1, R2 and R3, and the welding position of the discharge tube F1.
Further, in the above embodiment, after R1, R2, R3 and F1 are soldered at the corresponding soldering position of the circuit board, one end of R1 is connected to the power live wire L, one end of R2 is connected to the power neutral wire N, one end of F1 is connected to the power ground wire PE, and the other end of R1, the other end of R2 and the other end of F1 are communicated; r3 is connected between the end of R1 communicating with L and the end of R2 communicating with N.
Further, in the above embodiment, the plurality of soldering positions preset on the circuit board further includes: the welding position of the wire pressing terminal H1;
one end of R1, one end of R2, and one end of R3 are respectively connected L, N and PE through H1.
Further, in the above-mentioned embodiment, each soldering position is provided with one or more soldering points, and R1, R2, R3 and F1 are respectively soldered to the soldering points of the corresponding soldering position of the circuit board.
Further, in the above embodiment, the number of the welding points is two.
Further, in the above embodiment, one or more mounting holes are provided on the circuit board, and the mounting holes are used for mounting the circuit board on the protected device.
Further, in the above embodiment, the number of the mounting holes is four.
Further, in the above embodiment, the discharge tube F1 is a ceramic gas discharge tube.
The embodiment of the utility model provides a single-phase lightning protection device compares with prior art, has following beneficial effect: the single-phase lightning protection device is designed into a mode of welding a piezoresistor and a discharge tube on a circuit board, and has simple structure and low cost. The problems of complex structure and high cost of the guide rail installation form of the single-phase lightning protection device in the prior art are solved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the embodiments of the present invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention and not to limit the embodiments of the invention.
Fig. 1 is a schematic circuit diagram of a single-phase lightning protection device according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a circuit board of a single-phase lightning protection device provided by an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
Fig. 1 is the circuit schematic diagram of the single-phase lightning protection device that the embodiment of the utility model provides, fig. 2 is the utility model provides a circuit board schematic diagram of single-phase lightning protection device, as shown in fig. 1 and fig. 2, the embodiment of the utility model provides a single-phase lightning protection device can be applicable to low voltage distribution system, and single-phase lightning protection device can encapsulate to the circuit board, has preset a plurality of welding position on the circuit board, and a plurality of welding position include: the welding positions of the three piezoresistors R1, R2 and R3, and the welding position of the discharge tube F1.
Alternatively, the discharge tube F1 may be a ceramic gas discharge tube.
In practical application, the single-phase lightning protection devices widely used in low-voltage distribution systems are all in a guide rail installation mode in design, and a lightning protection type piezoresistor module is embedded in each power line L, N, so that the design structure is complex, and the cost is high.
To this end, the present embodiment proposes a single-phase lightning protection device, which is designed in the form of a circuit board with a varistor and a discharge tube soldered thereto. Specifically, the single-phase lightning protection device is designed and packaged into a circuit board, 3 piezoresistors R1, R2, R3 and 1 discharge tube F1 with proper specifications are respectively welded on the corresponding welding positions of the circuit board, and the single-phase lightning protection device is realized through 3 piezoresistors R1, R2, R3 and 1 discharge tube F1 welded on the circuit board, so that the effect of protecting power equipment is achieved.
The welding positions of the three preset piezoresistors R1, R2 and R3 and the welding position of the discharge tube F1 in the embodiment can be determined according to the realization principle that surge current is released by R1, R2, R3 and F1, and the setting positions only need to meet the requirement that when lightning strike occurs, surge current is released to PE by R1, R2, R3 and F1, high-voltage impact current is guided to the ground, and the effect of protecting power equipment is achieved.
The embodiment of the utility model provides a single-phase lightning protection device designs into the form of circuit board welding piezo-resistor and discharge tube with single-phase lightning protection device, simple structure, low cost. The problems of complex structure and high cost of the guide rail installation form of the single-phase lightning protection device in the prior art are solved.
Further, as shown in fig. 1 and 2, after R1, R2, R3 and F1 are welded at the corresponding welding positions of the circuit board, one end of R1 is connected to the live power line L, one end of R2 is connected to the neutral power line N, one end of F1 is connected to the ground power line PE, and the other end of R1, the other end of R2 and the other end of F1 are communicated; r3 is connected between the end of R1 communicating with L and the end of R2 communicating with N.
In this embodiment, the power supply L, N line is connected to the piezoresistors respectively and then connected to the PE line through the ceramic gas discharge tube, and a piezoresistor is connected in series between L and N. Specifically, as shown in fig. 1, after the power supply live wire L is communicated with R1, it is communicated with the power supply ground wire PE through F1; and after the power supply zero line N is communicated with the R2, the power supply zero line N is communicated with a power supply ground wire PE through the F1.
In practical application, in the single-phase lightning arrester provided by the embodiment, when a lightning strike occurs, surge current is released to PE by the L line and the N line through R1, R2 and F1, respectively, so that high-voltage surge current is guided to the ground; meanwhile, the current can flow to the N line and the L line through the R3, so that the effect of protecting the power equipment is achieved.
The embodiment of the utility model provides a single-phase lightning protection device designs into circuit board welding piezo-resistor and ceramic gas discharge tube's form, and power L and N line connect respectively through ceramic gas discharge tube connector PE line behind the piezo-resistor, and piezo-resistor of establishing ties between L and the N simultaneously reaches when protecting power equipment's effect, simple structure, low cost, and installation and maintenance are convenient, are suitable for extensive popularization and application.
Further, as shown in fig. 1 and 2, the plurality of soldering positions preset on the circuit board may further include: the welding position of the wire pressing terminal H1; one end of R1, one end of R2, and one end of R3 are respectively connected L, N and PE through H1.
In this embodiment, the lightning protection device is connected to L, N and the PE line by a terminal crimping method. Specifically, as shown in fig. 1, R1, R2 and R3 are respectively connected to L, N and PE through H1, so that L, N and PE are connected to the lightning arrester through the line-pressing terminals.
The embodiment of the utility model provides a single-phase lightning protection device designs into circuit board welding piezo-resistor and ceramic gas discharge tube's form, and power cord L, N and PE insert this lightning protection device through the line ball terminal, simple structure, low cost.
Further, as shown in fig. 1 and 2, each soldering position may be provided with one or more soldering points, and R1, R2, R3 and F1 are respectively soldered to the soldering points of the corresponding soldering position of the circuit board by screws.
Alternatively, the number of the welding points may be two.
In this embodiment, each soldering location is provided with a solder joint such that R1, R2, R3 and F1 can be soldered to the circuit board of the lightning protector. For example, when the welding positions of the piezoresistors R1, R2 and R3 are provided with two welding points, the R1, R2 and R3 can be respectively welded on the corresponding welding positions of the protection board through the two welding points.
The embodiment of the utility model provides a single-phase lightning protection device designs into circuit board welding piezo-resistor and ceramic gas discharge tube's form, and each welding position on the circuit board is provided with the welding point for piezo-resistor and ceramic gas discharge tube can weld on the corresponding position of circuit board, simple structure, low cost.
Further, as shown in fig. 1 and 2, the circuit board may be provided with one or more mounting holes for mounting the circuit board on the device to be protected.
Alternatively, the number of the mounting holes may be four.
In this embodiment, the circuit board is provided with the mounting hole for the whole circuit board can be fixed by using the screw and other modes. For example, when the number of the mounting holes is four, the lightning protection device can be fixed at the lightning protection mounting position of the protected device through four screws.
The embodiment of the utility model provides a single-phase lightning protection device designs into circuit board welding piezo-resistor and ceramic gas discharge tube's form, and is provided with the mounting hole on the circuit board for the lightning protection device can use the screw fixation, simple structure, low cost.
The utility model provides a single-phase lightning protection device designs into a circuit board with the lightning protection device, selects the suitable piezo-resistor of specification and ceramic gas discharge tube to weld on the circuit board, and the lightning protection device uses the mode of terminal crimping to insert power L, N and PE line, and whole lightning protection device can use the screw fixation, simple structure, and low cost installs and maintains the convenience, is suitable for extensive popularization and application.
In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "mouth" word structure "and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the structure referred to has a specific orientation, is constructed and operated in a specific orientation, and thus, is not to be construed as limiting the present invention.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "directly connected," "indirectly connected," "fixedly connected," "mounted," and "assembled" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; the terms "mounted," "connected," and "fixedly connected" may be directly connected or indirectly connected through intervening media, or may be connected through two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Although the embodiments of the present invention have been described above, the description is only for the convenience of understanding the present invention, and the present invention is not limited thereto. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A single-phase lightning protection device, wherein the single-phase lightning protection device is packaged as a circuit board, a plurality of welding positions are preset on the circuit board, and the plurality of welding positions comprise: the welding positions of the three piezoresistors R1, R2 and R3, and the welding position of the discharge tube F1.
2. The single-phase lightning protection device according to claim 1, wherein after R1, R2, R3 and F1 are welded at the corresponding welding positions of the circuit board, one end of R1 is connected with a power live wire L, one end of R2 is connected with a power neutral wire N, one end of F1 is connected with a power ground wire PE, and the other end of R1, the other end of R2 and the other end of F1 are communicated; r3 is connected between the end of R1 communicating with L and the end of R2 communicating with N.
3. The single-phase lightning protection device of claim 2, wherein the predetermined plurality of soldering locations on the circuit board further comprises: the welding position of the wire pressing terminal H1;
one end of R1, one end of R2, and one end of R3 are respectively connected L, N and PE through H1.
4. The single-phase lightning protection device according to any one of claims 1 to 3, wherein each soldering position is provided with one or more soldering points, and R1, R2, R3 and F1 are respectively soldered to the soldering points of the corresponding soldering position of the circuit board.
5. The single-phase lightning protection device of claim 4, wherein the number of welds is two.
6. The single-phase lightning protection device according to any one of claims 1 to 3, wherein the circuit board is provided with one or more mounting holes for mounting the circuit board to a device to be protected.
7. The single-phase lightning protection device of claim 6, wherein the number of mounting holes is four.
8. The single-phase lightning protector according to any of claims 1 to 3, characterized in that the discharge tube F1 is a ceramic gas discharge tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921337337.6U CN210577777U (en) | 2019-08-16 | 2019-08-16 | Single-phase lightning protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921337337.6U CN210577777U (en) | 2019-08-16 | 2019-08-16 | Single-phase lightning protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210577777U true CN210577777U (en) | 2020-05-19 |
Family
ID=70641775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921337337.6U Active CN210577777U (en) | 2019-08-16 | 2019-08-16 | Single-phase lightning protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210577777U (en) |
-
2019
- 2019-08-16 CN CN201921337337.6U patent/CN210577777U/en active Active
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