CN110867840A - Large-capacity overvoltage protector - Google Patents
Large-capacity overvoltage protector Download PDFInfo
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- CN110867840A CN110867840A CN201810982855.7A CN201810982855A CN110867840A CN 110867840 A CN110867840 A CN 110867840A CN 201810982855 A CN201810982855 A CN 201810982855A CN 110867840 A CN110867840 A CN 110867840A
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- electrode
- overvoltage protector
- main body
- overvoltage
- protection device
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/044—Physical layout, materials not provided for elsewhere
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/06—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
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Abstract
The invention discloses a large-capacity overvoltage protector in the technical field of electrical protection, which comprises a base and an overvoltage protector main body, wherein the overvoltage protector main body is inserted at the top of the base, a discharge tube is arranged in the overvoltage protector main body, one side of the discharge tube is connected with a first electrode, the other side of the discharge tube is connected with a first cutting sleeve, a polar plate is fixed on the side wall of an inner cavity of the overvoltage protector main body corresponding to the first cutting sleeve, and the bottom of the polar plate is connected with a second electrode. The purchase cost is greatly saved.
Description
Technical Field
The invention relates to the technical field of electrical equipment protection equipment, in particular to a high-capacity overvoltage protector.
Background
The atmospheric overvoltage caused by lightning will cause serious damage to the electrical equipment and the buildings of the substation. Therefore, in the transformer substation and the high and low voltage transmission lines, effective overvoltage protection measures must be taken to ensure the safety of the electrical equipment. Operational experience shows that the lightning protection measures (external lightning protection) adopted in the current substation are reliable. However, with the development of modern science and technology, the capacity of the power grid is increased, the voltage level is improved, and the requirement of the comprehensive automation level is met, more and more microelectronic devices are widely applied to the transformer substation, the accident occurrence probability of the microelectronic devices which depend on the microelectronic devices and are damaged due to lightning impulse is greatly increased, and the economic loss which is difficult to measure is caused
A prior art overvoltage protector, such as that of chinese patent application No. CN201620911568.3, includes an overvoltage protector body including a first electrode, a second electrode, a discharge tube, and an overheat and overcurrent protection device. One end of the discharge tube is close to the first electrode and is electrically connected with the first electrode through the overheat and overcurrent protection device, and the other end of the discharge tube is close to the second electrode and is electrically connected with the second electrode. By shortening the circuit path of the overvoltage protector main body, when heavy current passes through the circuit, the overvoltage protector has small voltage drop and enhanced reliability, and the safety of a secondary winding of a voltage transformer of a transformer substation applying the overvoltage protector is greatly guaranteed. Although this device has the circuit protection effect, is not convenient for realize changing the fusing position after the fuse is blown, need abandon the inside raw and other materials of a large amount of overvoltage protector main parts and change, very extravagant replacement cost.
Based on this, the invention designs a large-capacity overvoltage protector to solve the above problems.
Disclosure of Invention
The present invention is directed to a high-capacity overvoltage protection device, which solves the problems of the conventional high-capacity overvoltage protection device proposed in the background art that although it has a circuit protection function, it is inconvenient to replace a fuse position after a fuse is blown, and it is necessary to replace a large amount of raw materials inside a main body of the overvoltage protection device, which wastes replacement cost.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a large capacity overvoltage protector, includes base and overvoltage protector main part, the overvoltage protector main part is pegged graft at the top of base, the internally mounted of overvoltage protector main part has discharge tube, one side of discharge tube is connected with first electrode, just the opposite side of discharge tube is connected with first cutting ferrule, with first cutting ferrule is corresponding the inner chamber lateral wall of overvoltage protector main part is fixed with the polar plate, the bottom of polar plate is connected with the second electrode, the side surface of polar plate is provided with the jack, the inside wall activity of jack is pegged graft and is had the inserted bar, first spring has been cup jointed on the side surface of inserted bar, the other end of inserted bar is fixed with the second cutting ferrule, one side surface of second cutting ferrule through first spring with the side surface swing joint of polar plate.
Preferably, the inner sleeve provided on one side of the first cutting sleeve has the same diameter as the inner sleeve provided on the corresponding side of the second cutting sleeve.
Preferably, the lower end of the first electrode and the lower end of the second electrode both penetrate through the lower surface of the overvoltage protector body.
Preferably, a slot is formed in the upper surface of the base, sliding grooves are formed in two sides of the slot, the overvoltage protection device body is movably inserted into the inner side wall of the slot, clamping blocks are fixed to two sides of the overvoltage protection device body, the clamping blocks are matched with the sliding grooves, a limiting block is inserted into the side wall of each clamping block, the slots are formed in the upper ends of the left side and the right side of the inner cavity of the overvoltage protection device body, a second spring is connected to one side of the limiting block, and one side of the limiting block is movably inserted into the inner side wall of the slot through the second spring.
Preferably, the side surface of the sliding groove is provided with buckling holes matched with the limiting blocks.
Preferably, the lower surface of the slot is provided with a first electrode connection hole and a second electrode connection hole which are matched with the lower end of the first electrode and the lower end of the second electrode respectively.
Preferably, the bottom both sides of base are provided with first wiring end and second wiring end respectively, the inside of base is provided with at least two sets of binding post, first wiring end pass through binding post with first electrode connects the hole and is connected, just second wiring end pass through binding post with second electrode connects the hole and is connected.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, through the first cutting sleeve on the inserted link and the corresponding second cutting sleeve on the discharge tube which are connected by the spring, the replacement of the electric fuse can be realized conveniently in a mode of disassembling the main body of the overvoltage protector, the use of materials of internal elements of the main body of the overvoltage protector can be saved conveniently, and the repeated recycling of the main body of the overvoltage protector can be utilized, so that the purchase cost is greatly saved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a cross-sectional view of the main body of the overvoltage protection device of fig. 1 in accordance with the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-base, 2-overvoltage protector body, 3-discharge tube, 4-first electrode, 5-first cutting sleeve, 6-polar plate, 7-second electrode, 8-inserted rod, 9-first spring, 10-second cutting sleeve, 11-slot, 12-clamping block, 13-limiting block, 14-slot, 15-second spring, 16-first terminal and 17-second terminal.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a high-capacity overvoltage protector comprises a base 1 and an overvoltage protector main body 2, wherein the overvoltage protector main body 2 is inserted at the top of the base 1, a discharge tube 3 is arranged in the overvoltage protector main body 2, one side of the discharge tube 3 is connected with a first electrode 4, the other side of the discharge tube 3 is connected with a first cutting sleeve 5, a polar plate 6 is fixed on the side wall of the inner cavity of the overvoltage protector main body 2 corresponding to the first cutting sleeve 5, the bottom of the polar plate 6 is connected with a second electrode 7, the side surface of the polar plate 6 is provided with a jack, the inner side wall of the jack is movably inserted with an inserted bar 8, the side surface of the inserted bar 8 is sleeved with a first spring 9, a second clamping sleeve 10 is fixed at the other end of the inserted rod 8, and the outer surface of one side of the second clamping sleeve 10 is movably connected with the side surface of the polar plate 6 through a first spring 9;
it should be noted that, base 1 plays the circuit switch-on to overvoltage protector main part 2, and realize the circuit intercommunication with equipment through base 1, before overvoltage protector main part 2 carries out circuit protection simultaneously, through bulldozing inserted bar 8 to polar plate 6 one side, thereby realize the shrink of first spring 9, and the interval between first cutting ferrule 5 and the second cutting ferrule 10 is drawn greatly, and insert the good fuse that melts with hot between first cutting ferrule 5 and the second cutting ferrule 10, realize the overlap joint buckle, when this device is connecting some electrical equipment, after the circuit etc. goes wrong, because the fuse position is heated the increase fusing and plays fine guard action to electrical equipment, open overvoltage protector main part 2 simultaneously, and take out remaining fuse, and replace new fuse to protect the circuit.
Furthermore, the diameter of the inner sleeve arranged on one side of the first cutting sleeve 5 is equal to that of the inner sleeve arranged on the corresponding side of the second cutting sleeve 10;
the fuse wire with the proper length is cut by using the flat tongs, and the two ends of the fuse wire are respectively inserted and buckled in the inner sleeve of the clamping sleeve to realize the lap joint of the fuse wire.
Furthermore, the lower end of the first electrode 4 and the lower end of the second electrode 7 both penetrate through the lower surface of the main overvoltage protector body 2, so that the first electrode 4 and the second electrode 7 can be conveniently connected with the base 1 in an electric connection mode, and meanwhile, when the main overvoltage protector body 2 is plugged, the first electrode 4 and the second electrode 7 can be removed from the base 1 in a plugging mode.
A further specific embodiment is that a slot 11 is formed in the upper surface of the base 1, sliding grooves are formed in two sides of the slot 11, the main overvoltage protector body 2 is movably inserted into the inner side wall of the slot 11, clamping blocks 12 are fixed on two sides of the main overvoltage protector body 2, the clamping blocks 12 are matched with the sliding grooves, a limiting block 13 is inserted into the side wall of the clamping block 12, slots 14 are formed in the upper ends of the left side and the right side of the inner cavity of the main overvoltage protector body 2, a second spring 15 is connected to one side of the limiting block 13, and one side of the limiting block 13 is movably inserted into the inner side wall of the slot 14 through the second spring 15;
it should be explained that, when the overvoltage protector body 2 is used to insert and buckle the base 1, in order to improve the stability of the overvoltage protector body 2, the limiting block 13 is contracted into the slot 14 through the spring connection when being inserted downwards, and under the buckling action of the limiting block 13, the stable fixation of the overvoltage protector body 2 is realized
In a further specific embodiment, a fastening hole matched with the limiting block 13 is formed in the side surface of the sliding groove; by utilizing the limiting block 13 to move downwards, the limiting block 13 is extruded to be clamped into the buckling hole under the action of the elastic force of the second spring 15, and the buckling fixation of the overvoltage protector main body 2 is realized.
In a further specific embodiment, the lower surface of the slot 11 is provided with a first electrode connection hole and a second electrode connection hole respectively matched with the lower end of the first electrode 4 and the lower end of the second electrode 7; the first electrode 4 and the second electrode 7 can be conveniently detached from and installed in the first electrode connecting hole and the second electrode connecting hole in the slot 11.
A further specific embodiment is that, the two sides of the bottom of the base 1 are respectively provided with a first terminal 16 and a second terminal 17, the inside of the base 1 is provided with at least two sets of terminals, the first terminal 16 is connected with the first electrode connection hole through a terminal, the second terminal 17 is connected with the second electrode connection hole through a terminal, the first terminal 16 and the second terminal 17 are respectively connected with electrical equipment, and the overvoltage protector body 2 is used for protecting the circuit.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. The utility model provides a large capacity overvoltage protection device, includes base (1) and overvoltage protection device main part (2), the top at base (1) is pegged graft in overvoltage protection device main part (2), its characterized in that: a discharge tube (3) is arranged in the overvoltage protector main body (2), one side of the discharge tube (3) is connected with a first electrode (4), the other side of the discharge tube (3) is connected with a first cutting sleeve (5), a polar plate (6) is fixed on the side wall of the inner cavity of the overvoltage protector main body (2) corresponding to the first cutting sleeve (5), the bottom of the polar plate (6) is connected with a second electrode (7), the side surface of the polar plate (6) is provided with a jack, an inserting rod (8) is movably inserted into the inner side wall of the inserting hole, a first spring (9) is sleeved on the side surface of the inserting rod (8), a second clamping sleeve (10) is fixed at the other end of the inserted rod (8), and the outer surface of one side of the second clamping sleeve (10) is movably connected with the side surface of the pole plate (6) through a first spring (9).
2. A large capacity overvoltage protector as claimed in claim 1 wherein: the diameter of the inner sleeve arranged on one side of the first cutting sleeve (5) is equal to that of the inner sleeve arranged on the corresponding side of the second cutting sleeve (10).
3. A large capacity overvoltage protector as claimed in claim 1 wherein: the lower end of the first electrode (4) and the lower end of the second electrode (7) penetrate through the lower surface of the overvoltage protector main body (2).
4. A large capacity overvoltage protector as claimed in claim 1 wherein: the improved overvoltage protection device is characterized in that a slot (11) is formed in the upper surface of the base (1), sliding grooves are formed in two sides of the slot (11), the overvoltage protection device main body (2) is movably inserted into the inner side wall of the slot (11), clamping blocks (12) are fixed to two sides of the overvoltage protection device main body (2), the clamping blocks (12) are matched with the sliding grooves, a limiting block (13) is inserted into the side wall of the clamping block (12), slots (14) are formed in the upper ends of the left side and the right side of an inner cavity of the overvoltage protection device main body (2), one side of the limiting block (13) is connected with a second spring (15), and one side of the limiting block (13) is movably inserted into the inner side wall of the slot (14) through the second spring.
5. A large capacity overvoltage protector as claimed in claim 4 wherein: and the side surface of the sliding groove is provided with buckling holes matched with the limiting blocks (13).
6. A large capacity overvoltage protector as claimed in claim 4 wherein: the lower surface of the slot (11) is provided with a first electrode connecting hole and a second electrode connecting hole which are matched with the lower end of the first electrode (4) and the lower end of the second electrode (7) respectively.
7. A large capacity overvoltage protector as claimed in claim 6 wherein: the bottom both sides of base (1) are provided with first wiring end (16) and second wiring end (17) respectively, the inside of base (1) is provided with at least two sets of binding post, first wiring end (16) through binding post with first electrode connects the hole and is connected, just second wiring end (17) through binding post with second electrode connects the hole and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810982855.7A CN110867840A (en) | 2018-08-27 | 2018-08-27 | Large-capacity overvoltage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810982855.7A CN110867840A (en) | 2018-08-27 | 2018-08-27 | Large-capacity overvoltage protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110867840A true CN110867840A (en) | 2020-03-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810982855.7A Pending CN110867840A (en) | 2018-08-27 | 2018-08-27 | Large-capacity overvoltage protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110867840A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114552548A (en) * | 2022-03-05 | 2022-05-27 | 安徽诺希电气设备科技有限公司 | Overvoltage protection ware that security performance is strong |
| CN114597850A (en) * | 2022-03-24 | 2022-06-07 | 广东电力通信科技有限公司 | Signal overvoltage protection device |
-
2018
- 2018-08-27 CN CN201810982855.7A patent/CN110867840A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114552548A (en) * | 2022-03-05 | 2022-05-27 | 安徽诺希电气设备科技有限公司 | Overvoltage protection ware that security performance is strong |
| CN114597850A (en) * | 2022-03-24 | 2022-06-07 | 广东电力通信科技有限公司 | Signal overvoltage protection device |
| CN114597850B (en) * | 2022-03-24 | 2024-04-05 | 广东电力通信科技有限公司 | Signal overvoltage protection device |
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