CN209786789U - 20kA single-phase PCB type power supply surge protector - Google Patents
20kA single-phase PCB type power supply surge protector Download PDFInfo
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- CN209786789U CN209786789U CN201920630381.XU CN201920630381U CN209786789U CN 209786789 U CN209786789 U CN 209786789U CN 201920630381 U CN201920630381 U CN 201920630381U CN 209786789 U CN209786789 U CN 209786789U
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Abstract
The utility model discloses a single-phase PCB type power surge protector of 20kA, including the dropout part, the dropout part includes the combination pressure sensitive element who links into an integrated entity by two pressure sensitive chip a. The two pressure-sensitive chips a are both provided with a low-temperature pin a, and the contact part of the two pressure-sensitive chips a is provided with a high-temperature pin a. The tripping part also comprises a pin a and a pin b, wherein the pin a is provided with a pin a beryllium copper elastic sheet and a pin a limiting inclined plane, and the pin b is provided with a pin b beryllium copper elastic sheet and a pin b limiting inclined plane; the pin a beryllium copper elastic sheet and the pin b beryllium copper elastic sheet are respectively welded with the low-temperature pin a. The utility model has the advantages of PCB wiring design is succinct, production technology is simpler, the assembly is easier, the performance is more stable.
Description
Technical Field
the utility model relates to an emergency circuit protection device field especially relates to a single-phase Pcb type power surge protector of 20 kA.
Background
The surge protector is a protection device for providing safety protection for various electronic equipment, instruments and meters and communication lines, and can play a role in protection when an electric loop, a communication line or a PCB line is damaged by lightning attack or other instantaneous overvoltage.
at present, the tripping function of the PCB type surge protector is realized by flexibly connecting a low-temperature pin and a tripping copper sheet through a copper braid, and a torsion spring springs the tripping copper sheet after low-temperature tripping; the telecommand signal has two modes, one mode is connected with a copper sheet or a lead through a microswitch to form on-off, the other mode is contacted with a copper wire or a copper sheet through a beryllium copper elastic sheet, a low-temperature pin presses the beryllium copper elastic sheet, different voltages are separated through an insulating material, and the beryllium copper elastic sheet bounces off to form on-off of the telecommand signal after low-temperature tripping. The PCB type surge protector is complex in structure and process, difficult to assemble, high in material cost and prone to remote signal false alarm caused by insufficient stroke action of the microswitch and poor contact of the beryllium copper elastic sheet, and consumes more working hours.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a single-phase Pcb type power surge protector of 20kA, this surge protector dependable performance, novel structure, simple process, the assembly is easy to save production man-hour and material cost.
The utility model aims at realizing through the following technical scheme:
a20 kA single-phase PCB type power supply surge protector comprises two combined voltage-sensitive elements which are integrally connected with each other, wherein a high-temperature pin a of the combined voltage-sensitive element is arranged between the two voltage-sensitive chips, and a low-temperature pin a is arranged on each of the two voltage-sensitive chips.
Also included is a housing portion, the housing including an inner shell and an outer shell. An inner shell cavity is arranged in the middle of the inner shell and used for placing the combined pressure-sensitive element. Only one side of the inner shell cavity is provided with an opening, and the side opposite to the opening is provided with a high-temperature pin hole, so that the high-temperature pin a of the combined pressure-sensitive element is exposed out of the inner shell cavity. One side of the inner shell is provided with a pin assembling groove a, a spring assembling groove c, a spring assembling groove e, a sliding block assembling groove a and a low-temperature pin assembling hole a, and the other side of the inner shell cavity is symmetrically provided with a pin assembling groove b, a spring assembling groove d, a spring assembling groove f, a sliding block assembling groove b and a low-temperature pin assembling hole b; one low-temperature pin a of the combined piezoresistor element is arranged in the low-temperature pin assembly hole b, and the other low-temperature pin a is arranged in the low-temperature pin assembly hole a; the inner side of the outer shell is provided with a clamping groove so that the inner shell and other components are completely arranged in the outer shell.
The pin part comprises a pin a and a pin b, a beryllium copper elastic sheet of the pin a and a limit inclined plane of the pin a are arranged on the pin a, and a beryllium copper elastic sheet 321 of the pin b and a limit inclined plane of the pin b are arranged on the pin b 32; the plug pin a is arranged in the plug pin assembling slot a of the inner shell, and the plug pin b is arranged in the plug pin assembling slot b of the inner shell; the pin a beryllium copper elastic sheet and the pin b beryllium copper elastic sheet are respectively welded with the two low-temperature pins a of the combined pressure-sensitive element and respectively used as low-temperature tripping points.
the sliding block part comprises a sliding block a and a sliding block b, wherein a first plastic hook of the sliding block a and a second plastic hook of the sliding block a are arranged on two sides of the sliding block a and are arranged at the sliding block assembling groove position a and the pin a limiting inclined plane of the inner shell, and a first plastic hook of the sliding block b and a second plastic hook of the sliding block b are arranged on two sides of the sliding block b and are arranged at the sliding block assembling groove position b and the pin b limiting inclined plane of the inner shell;
The spring portion comprises two identical springs a and two identical springs b. The spring assembly groove is characterized in that a first stretching spring ring and a first hook and a second stretching spring ring and a second hook are arranged at two ends of the spring a, the first hook of the spring a and the first hook of the sliding block a of one of the springs are hung on the inner shell in the spring assembly groove position c, and the second hook of the spring a and the first hook of the sliding block b of the same spring are hung on the spring assembly groove position d and serve as a common pole of remote communication signals. And the other first hook of the spring a and the second hook of the sliding block a are hung in the spring assembling slot e, and the second hook of the same spring and the second plastic hook of the sliding block b are hung in the spring assembling slot f to play a role in assisting in tripping. The two identical springs b are respectively used as the other pole of a remote signal and are respectively arranged in the spring assembling slot a and the spring assembling slot b on the two sides of the inner shell; the spring a, the first tension spring ring and the second tension spring ring are arranged in the spring assembling groove c and the spring assembling groove d of the inner shell and are respectively in close contact with the two identical springs b.
The pin a is welded with a low-temperature pin b of a piezoresistor welding assembly of the gas discharge tube, and the pin b is welded with the low-temperature pin of the piezoresistor welding assembly of the gas discharge tube and respectively used as a low-temperature trip point.
Further, the combined pressure sensitive element can be replaced by an air-release pressure sensitive component, and the air-release pressure sensitive component is formed by integrally connecting a gas discharge tube and a pressure sensitive chip. And the gas discharge tube and the pressure-sensitive chip b are both provided with a low-temperature pin b, and the contact part of the gas discharge tube and the pressure-sensitive chip b is provided with a high-temperature pin b.
The utility model has the advantages that:
(1) Two high-temperature pins in the prior art are reduced by one pin through the combination of the pressure-sensitive element or the two resistor chips in the air-release pressure-sensitive component, so that the pins of the surge protector are simplified, and the PCB wiring design is simpler;
(2) beryllium copper elastic sheets are arranged on the pin a and the pin b respectively and are directly flicked to release the low-temperature welding points, so that the production process is simpler, the assembly is easier, and the performance is more stable;
(3) the tail ends of the beryllium copper elastic sheets on the pin a and the pin b are respectively provided with the limiting inclined planes, the sliding block a and the sliding block b are respectively arranged at the limiting inclined planes, the two sides of the sliding block a and the sliding block b are respectively provided with the first plastic hook and the second plastic hook which are respectively hung with the first hook and the second hook at the two ends of the spring a, so that the first stretching spring ring and the second stretching spring ring at the two ends of the spring a are tightly combined with the two same spring b to be switched on and off as a telecommand signal.
(4) the first stretching spring ring and the second stretching spring ring arranged at the two ends of the spring a have elastic functions, so that the effective tight contact and overpressure buffering effects are achieved, and the contact effect is better;
(5) The plastic hooks on the two sides of the sliding block effectively isolate the high and low voltages between the pin a and the pin b and the spring a, and a good insulation effect is achieved.
drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a schematic structural diagram of the combined pressure sensitive element of the present invention;
FIG. 4 is a schematic structural view of the air release pressure sensitive assembly of the present invention;
fig. 5 is a schematic structural diagram of the inner shell of the present invention;
fig. 6 is a schematic structural view of the inner shell of the present invention in another direction;
FIG. 7 is a schematic diagram of the structure of the remote signaling switch of the present invention;
FIG. 8 is a schematic diagram of the structure of the remote signaling disconnection of the present invention;
In the figure: 11. combining the pressure sensitive elements; 111. a high-temperature pin a; 112. a low-temperature pin a; 12. an air-bleed pressure sensitive component; 121. a high-temperature pin b; 122. a low-temperature pin b; 21. an inner shell; 211. an inner shell cavity; 2121. a pin assembling slot a; 2122. a pin assembling slot b; 2123. high-temperature pin assembling holes; 2131. a spring assembling slot position a; 2132. a spring assembling slot position b; 2141. a spring assembling slot position c; 2142. a spring assembling slot position d; 2143. a spring assembling slot e; 2144. a spring assembling slot position f; 2151. a sliding block assembling groove position a; 2152. a sliding block assembling groove position b; 2161. a low-temperature pin assembling hole a; 2162. a low-temperature pin assembling hole b; 22. a housing; 23. a sliding block a; 231. a first hook of a sliding block a; 232. a second hook of the sliding block a; 24. a sliding block b; 241. a first hook of a sliding block b; 242. a second hook of the sliding block b; 31. a pin a; 311. the pin a is a beryllium copper elastic sheet; 312. the pin a limits the inclined plane; 32. a pin b; 321. a pin b is a beryllium copper elastic sheet; 322. the plug pin b limits the inclined plane; 41. a spring a; 411. spring a first tension spring coil; 412. a spring a first hook; 413. spring a second tension spring ring; 414. a second hook of the spring a; 42. and a spring b.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
the first embodiment is as follows:
the 20kA single-phase PCB type power supply surge protector comprises a combined voltage-sensitive element 11 formed by integrally connecting two voltage-sensitive resistor chips, wherein a high-temperature pin a111 of the combined voltage-sensitive resistor element is arranged between the two voltage-sensitive resistor chips, and a low-temperature pin a112 is arranged on each of the two voltage-sensitive chips.
And a housing portion comprising an inner shell 21 and an outer shell 22. The inner shell 21 is provided with an inner shell cavity 211 in the middle for placing the combined pressure sensitive element 11. Only one side of the inner housing 211 is open, and the side opposite to the opening is provided with a high temperature pin hole 2123, so that the high temperature pin a111 of the combined pressure sensitive element 11 is exposed from the inner housing 211. One side of the inner shell 21 is provided with a pin assembling slot a2121, a spring assembling slot a2131, a spring assembling slot c2141, a spring assembling slot E2143, a sliding block assembling slot a2151 and a low-temperature pin assembling hole a2161, and the other side of the inner shell cavity 211 is symmetrically provided with a pin assembling slot b2122, a spring assembling slot b2132, a spring assembling slot d2142, a spring assembling slot f2144, a sliding block assembling slot b2152 and a low-temperature pin assembling hole b 2162; one low-temperature pin a111 of the combined piezoresistor element 11 is arranged in the low-temperature pin assembly hole b2162, and the other low-temperature pin a111 is arranged in the low-temperature pin assembly hole a 2161; the inner side of the outer shell 22 is provided with a clamping groove so that the inner shell 12 and other components are completely arranged in the outer shell 22.
The pin part comprises a pin a31 and a pin b32, a beryllium copper spring sheet 311 and a limit inclined plane 312 of the pin a are arranged on the pin a31, and a beryllium copper spring sheet 321 and a limit inclined plane 322 of the pin b are arranged on the pin b 32; the pin a31 is arranged in the pin assembly slot a2121 of the inner shell, and the pin b32 is arranged in the pin assembly slot b2122 of the inner shell; the pin a beryllium copper elastic sheet 311 and the pin b beryllium copper elastic sheet 321 are respectively welded with the two low-temperature pins a111 of the combined pressure-sensitive element and respectively used as low-temperature tripping points.
the sliding block part comprises a sliding block a23 and a sliding block b24, a first plastic hook 231 and a second plastic hook 232 of the sliding block a are arranged on two sides of the sliding block a23 and are arranged at the sliding block assembling groove a2151 and the pin a limiting inclined plane 312 of the inner shell, a first plastic hook 241 of the sliding block b and a second plastic hook 242 of the sliding block b are arranged on two sides of the sliding block b24 and are arranged at the sliding block assembling groove b2152 and the pin b limiting inclined plane 322 of the inner shell;
The spring portion comprises two identical springs a41 and two identical springs b 42. The two ends of the spring a41 are respectively provided with a first tension spring coil 411 and a first hook 412, and a second tension spring coil 413 and a second hook 414, the first hook 412 of the spring a41 and the first hook 231 of the sliding block a are hung in the spring assembling slot c2141 of the inner shell, and the second hook 414 of the spring a and the first hook 241 of the sliding block b are hung in the spring assembling slot d2142 of the same spring and serve as a common pole of a remote signal. The other first hook 412 of the spring a41 and the second hook 232 of the sliding block a are hung in the spring assembling slot e2143, and the second hook 414 of the same spring and the second plastic hook 242 of the sliding block b are hung in the spring assembling slot f2144 to assist in tripping. The two identical springs b42 are respectively used as the other pole of a remote signal and respectively arranged in the spring assembling slot a2131 and the spring assembling slot b2132 on the two sides of the inner shell; the spring a, the first tension spring coil 411 and the second tension spring coil 413, which are installed in the spring assembly slot c2141 and the spring assembly slot d2142 of the inner housing, are respectively in close contact with the two identical springs b42, and the telecommand signal is conducted.
Example two
this embodiment is basically the same as the first embodiment, and the combined pressure sensitive element 11 is replaced by a gas discharge pressure sensitive component 12, and the gas discharge pressure sensitive component 12 is integrally connected by a gas discharge tube and a pressure sensitive chip. And a low-temperature pin b122 is arranged on each of the gas discharge tube and the pressure-sensitive chip b, and a high-temperature pin b121 is arranged at the contact position of the gas discharge tube and the pressure-sensitive chip b.
the pin a beryllium copper elastic sheet 311 is welded with a low-temperature pin b122 of a piezoresistor welding assembly of the gas discharge tube, and the pin b beryllium copper elastic sheet 321 is welded with the low-temperature pin 122 of the piezoresistor welding assembly of the gas discharge tube and respectively used as a low-temperature trip point;
when the combined low-temperature pin 112 of the varistor element or the low-temperature pin 122 of the varistor welding assembly of the gas discharge tube is tripped from the beryllium copper spring sheet 321 of the pin b, the sliding block a24 bounces along with the beryllium copper spring sheet 321 of the pin b, the spring a41 arranged in the spring assembling groove d2142 and the spring assembling groove f2144 of the inner shell moves under the tension of the second tension spring coil 413 of the spring a, so that the power supply is cut off and protected, the second tension spring coil 413 of the spring a41 is separated from the spring b42, and the remote signal is cut off and an alarm effect is achieved.
It will be appreciated by those of ordinary skill in the art that the embodiments described herein are intended to assist the reader in understanding the principles of the invention, and it is to be understood that the scope of the invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on the teachings of the present invention without departing from the spirit of the invention, and such modifications and combinations are still within the scope of the invention.
Claims (5)
1. a20 kA single-phase PCB type power supply surge protector comprises a tripping part and is characterized in that:
The tripping part comprises a combined pressure-sensitive element (11) which is integrally connected by two pressure-sensitive chips a; a low-temperature pin a (112) is arranged on each of the two pressure-sensitive chips a, and a high-temperature pin a (111) is arranged at the contact position of the two pressure-sensitive chips a;
The tripping part also comprises a pin a (31) and a pin b (32), wherein the pin a (31) is provided with a pin a beryllium copper elastic sheet (311) and a pin a limiting inclined plane (312), and the pin b (32) is provided with a pin b beryllium copper elastic sheet (321) and a pin b limiting inclined plane (322); the pin a beryllium copper elastic sheet (311) and the pin b beryllium copper elastic sheet (321) are respectively welded with the low-temperature pin a (112).
2. a 20kA single phase PCB type power supply surge protector according to claim 1, characterized in that:
The tripping part comprises an air-discharge pressure-sensitive component (12) which is formed by integrally connecting a gas discharge tube and a pressure-sensitive chip b; a low-temperature pin b (122) is arranged on each of the gas discharge tube and the pressure-sensitive chip b, and a high-temperature pin b (121) is arranged at the contact position of the gas discharge tube and the pressure-sensitive chip b;
The tripping part also comprises a pin a (31) and a pin b (32), wherein the pin a (31) is provided with a pin a beryllium copper elastic sheet (311) and a pin a limiting inclined plane (312), and the pin b (32) is provided with a pin b beryllium copper elastic sheet (321) and a pin b limiting inclined plane (322); the pin a beryllium copper elastic sheet (311) and the pin b beryllium copper elastic sheet (321) are respectively welded with the low-temperature pin b (122).
3. a 20kA single phase PCB type power supply surge protector according to claim 1, characterized in that:
The pressure-sensitive component comprises a shell part, wherein the shell comprises an inner shell (21) and an outer shell (22), an inner shell cavity (211) is arranged in the middle of the inner shell (21) and is used for placing a combined pressure-sensitive element (11) or an air-release pressure-sensitive component (12); the inner shell cavity (211) is provided with high-temperature pin holes (2123) so that the high-temperature pins a (111) are exposed out of the inner shell cavity (211);
One side of the inner shell (21) is provided with a pin assembling slot a (2121), a spring assembling slot a (2131), a spring assembling slot c (2141), a spring assembling slot e (2143), a sliding block assembling slot a (2151) and a low-temperature pin assembling hole a (2161), and the other side of the inner shell cavity (211) is symmetrically provided with a pin assembling slot b (2122), a spring assembling slot b (2132), a spring assembling slot d (2142), a spring assembling slot f (2144), a sliding block assembling slot b (2152) and a low-temperature pin assembling hole b (2162); the low-temperature pin a (112) or the low-temperature pin b (122) is arranged in the low-temperature pin assembly hole b (2162), and the low-temperature pin a (112) or the low-temperature pin b (122) is arranged in the low-temperature pin assembly hole a (2161); the inner side of the shell (22) is provided with a clamping groove.
4. a 20kA single phase PCB type power supply surge protector according to claim 3, characterized in that:
Further comprises a spring part which comprises two identical springs a (41) and two identical springs b (42), wherein both ends of the springs a (41) are provided with a first stretch spring ring (411) and a first hook (412) and a second stretch spring ring (413) and a second hook (414),
the first hook (412) is connected with the first hook (231) of the sliding block a and installed in the spring assembling slot c (2141), and the second hook (414) of the same spring is connected with the first hook (241) of the sliding block b and installed in the spring assembling slot d (2142); the first hook and the second hook (232) of the other spring a (41) are hung in the spring assembling groove e (2143), and the second hook (414) of the same spring is connected with the second plastic hook (242) of the sliding block b and is installed in the spring assembling groove f (2144);
Two identical springs b (42) are respectively installed in the spring assembly groove a (2131) and the spring assembly groove b (2132) and are respectively in close contact with the first tension spring ring (411) and the second tension spring ring (413) of the spring a.
5. A20 kA single-phase PCB type power supply surge protector according to claim 4, wherein: and the sliding block a (23) and the sliding block b (24) are both made of insulating materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920630381.XU CN209786789U (en) | 2019-05-05 | 2019-05-05 | 20kA single-phase PCB type power supply surge protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920630381.XU CN209786789U (en) | 2019-05-05 | 2019-05-05 | 20kA single-phase PCB type power supply surge protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209786789U true CN209786789U (en) | 2019-12-13 |
Family
ID=68804945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920630381.XU Active CN209786789U (en) | 2019-05-05 | 2019-05-05 | 20kA single-phase PCB type power supply surge protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209786789U (en) |
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2019
- 2019-05-05 CN CN201920630381.XU patent/CN209786789U/en active Active
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