CN112349500A - Lightning-protection contact and transformer - Google Patents
Lightning-protection contact and transformer Download PDFInfo
- Publication number
- CN112349500A CN112349500A CN202011129701.7A CN202011129701A CN112349500A CN 112349500 A CN112349500 A CN 112349500A CN 202011129701 A CN202011129701 A CN 202011129701A CN 112349500 A CN112349500 A CN 112349500A
- Authority
- CN
- China
- Prior art keywords
- sliding
- fixedly connected
- spring
- plate
- baffle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/12—Overvoltage protection resistors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuses (AREA)
Abstract
The invention discloses a lightning arrester and a transformer, relates to the technical field of transformers, and discloses a lightning arrester and a transformer. The lightning arrester comprises a shell, wherein a storage part, a blocking piece, a limiting piece, a pushing piece, a pulley assembly and a driving piece are arranged in the shell; the storage part includes: the sliding shell is of a hollow structure with a through top; the first spring is fixedly connected with the inner wall of the bottom of the sliding shell; the first supporting plate is fixedly connected with the top of the first spring; the sliding shell is internally provided with a plurality of check blocks, and the check blocks are arranged above the first supporting plate. Compared with the prior art, the technical scheme improves the installation and the replacement of the stop blocks, the sliding shell can store a plurality of stop blocks simultaneously, the stop blocks can be replaced through the driving of the driving piece, the installation and the replacement process are simple to operate, and a large amount of workload can be saved.
Description
Technical Field
The invention relates to the technical field of transformers, in particular to a lightning arrester and a transformer.
Background
The transformer causes the damage to it for the voltage that prevents the thunderbolt and cause when using, need set up corresponding lightning protection circuit, when taking place the overvoltage, the supply side should be put through with ground through the arrester, preferably simultaneously with the disconnection of supply side, current arrester all does not have this kind of function, like this, causes the damage of consumer very easily when taking place the thunderbolt.
In order to solve the above problems, CN211016740U discloses a lightning protection contact, which includes a housing, an umbrella cover is disposed outside the housing, an insulating support is disposed in the housing, and a multilayer zinc oxide resistor disc is disposed in the insulating support; the inner wall of the upper end of the insulating support body is provided with a concave ring, a stop block made of low-temperature alloy is embedded into the concave ring, a baffle is arranged below the stop block, a pop-up spring and a zinc oxide resistance chip are arranged below the baffle, an upper binding post is fixed above the baffle, and the lower part of the zinc oxide resistance chip is connected with a lower electrode. The principle of the scheme is as follows: when lightning stroke occurs, the lightning stroke current is conducted with the grounding end through the lightning arrester, and meanwhile, the connection with the power utilization end is disconnected, so that the transformer connected with the power utilization end is protected.
However, when the lightning protection contact of the invention needs to be replaced by a new stop block after the stop block is destroyed by lightning strike, the installation and replacement procedures of the stop block are complicated and inconvenient.
Disclosure of Invention
The invention aims to provide a lightning-protection contact and a transformer, and aims to solve the problem that a stop block in the prior art is inconvenient to mount and replace.
In order to achieve the above object, a first aspect of the present invention provides a lightning protection contact, which includes a housing, wherein a storage component, a blocking component, a limiting component, a pushing component, a pulley assembly, and a driving component are disposed in the housing;
the storage part includes:
the sliding shell is of a hollow structure with a through top;
the first spring is fixedly connected with the inner wall of the bottom of the sliding shell;
the first supporting plate is fixedly connected with the top of the first spring;
the sliding shell is internally provided with a plurality of stop blocks made of low-temperature alloy, and the stop blocks are arranged above the first supporting plate;
the barrier includes:
the cover plate is arranged at the top of the sliding shell, an opening for the stop block to pass through is formed in the cover plate, a slot penetrating through the opening is formed in the side wall of the cover plate, and first sliding grooves are formed in two sides of the slot;
the sliding baffle is provided with a first sliding strip matched with the first sliding groove, the length of the first sliding strip is smaller than that of the first sliding groove, the sliding baffle is arranged in the open groove of the cover plate in a penetrating manner, and the sliding baffle can open or close the opening by matching with the first sliding groove;
the second spring is arranged in a space formed by the first sliding strip and the first sliding groove, one end of the second spring is fixedly connected with the end face, facing the slotting direction on the side wall of the cover plate, of the first sliding groove, the other end of the second spring is fixedly connected with the end face, facing away from the slotting direction on the side wall of the cover plate, of the first sliding strip, and when the opening is in a closed state, the second spring is in a loose state;
the stopper includes:
the limiting plate is arranged above the opening, and the height distance between the bottom of the limiting plate and the upper end face of the sliding baffle is the height value of the stop block;
one end of the fixing strip is fixedly connected with the limiting plate, and the other end of the fixing strip is fixedly connected with the inner wall of the shell;
the pushing member comprises:
the fixing plate is arranged at one end, close to the groove in the side wall of the cover plate, of the top of the cover plate, and the bottom of the fixing plate is fixedly connected with the outer wall of the top of the cover plate;
the third spring is horizontally arranged, and one end of the third spring is fixedly connected with the fixing plate;
the feeding plate is fixedly connected with the other end of the third spring;
the sheave assembly includes:
the pulley block is arranged above the opening, and the fixed end of the pulley block is fixedly connected with the inner wall of the shell;
the rope piece comprises a first rope and a second rope, and the first rope and the second rope are sleeved on the pulley block; one end of the first rope is fixedly connected with the feeding plate, and the other end of the first rope is fixedly connected with the driving piece; one end of the second rope is fixedly connected with the outer wall, far away from the opening closing surface, of the sliding baffle, and the other end of the second rope is fixedly connected with the driving piece.
Compared with the prior art, the technical scheme improves the installation and the replacement of the stop blocks, the sliding shell can store a plurality of stop blocks simultaneously, the stop blocks can be replaced through the driving of the driving piece, the installation and the replacement process are simple to operate, and a large amount of workload can be saved.
Further, the driving member includes: the two ends of the fixed shaft are fixedly connected with the inner wall of the shell;
the middle part of the baffle is provided with a round hole matched with the fixed shaft, the baffle is sleeved on the fixed shaft, and the bottom surface of one end of the baffle can be abutted against the upper end surface of the stop block positioned above the cover plate;
the baffle is far away from and the other end below of dog butt is equipped with the fourth spring, the fourth spring with be equipped with the second backup pad between the baffle, the top of second backup pad with the baffle butt, the bottom of second backup pad with fourth spring fixed connection, the other end of fourth spring with the bottom fixed connection of casing, the dog with during baffle bottom surface butt the fourth spring is in compression state.
Further, the lightning protection contact includes: the umbrella cover is arranged on the outer wall of the shell;
the zinc oxide resistance card is arranged in the shell and is provided with a plurality of layers of zinc oxide resistance cards, and the zinc oxide resistance cards are arranged below the fourth spring;
the insulating support body is arranged around the zinc oxide resistance card, the top of the insulating support body is fixedly connected with the inner wall of the top of the shell, the bottom of the insulating support body is fixedly connected with the inner wall of the bottom of the shell, and an opening is formed in the side wall, close to the opening, of the insulating support body and used for the stop block to pass through;
the lower electrode is arranged below the zinc oxide resistor disc;
and the upper wiring terminal is hinged with one end of the baffle close to the fourth spring.
Further, be provided with in the casing and separate the temperature piece, separate the temperature piece setting and be in slip casing is equipped with the second sliding tray on the inner wall that separates the temperature piece with slip casing meets, be equipped with on the outer wall of slip casing with the second sliding bar of second sliding tray looks adaptation, the bottom of casing is equipped with the confession of activity shutter the slip casing passes through, the activity shutter with the bottom of casing is articulated.
Furthermore, the upper binding post is inserted into a force application hole of the pressure-driven opening and closing wire clamp and is abutted against the lower part of the insertion block; the pressure-driven opening and closing wire clamp comprises a base, wherein coaxial through holes are formed in two sides of the base, and a power supply side electrode and a power utilization side electrode are embedded into the through holes; a threaded through hole is formed above the base, threads are arranged on the outer side of the sliding seat, the sliding seat is screwed in the threaded through hole, and a slide way is arranged in the middle of the sliding seat; one end of the insertion block is a straight surface, the other end of the insertion block is an inclined surface, the surface of the power supply side electrode corresponding to the insertion block is a straight surface, and the surface of the power utilization side electrode corresponding to the insertion block is an inclined surface; the insertion block is arranged between the power supply side electrode and the power utilization side electrode; a sliding rod is arranged above the inserting block and inserted into the sliding way, and a fifth spring is sleeved outside the sliding rod; and a force application hole is formed in the position, corresponding to the insertion block, below the base.
Further, a protective cover is arranged outside the pressure-driven opening and closing wire clamp.
Furthermore, a pull rope is arranged at the bottom of the second support plate, one end of the pull rope is fixedly connected with the second support plate, and the other end of the pull rope penetrates out of the bottom of the shell.
Furthermore, the top and the bottom of the stop block close to the side wall of the fixing plate are both provided with inclined planes.
A second aspect of the invention provides a transformer comprising a lightning protection contact as described above.
The beneficial effects of the above technical scheme are: this transformer can switch on through arrester and earthing terminal when meetting the thunderbolt, has broken off simultaneously and has been connected with the power consumption end, and the security greatly increased of equipment.
Drawings
Fig. 1 is a front view of a lightning contact according to an embodiment of the invention;
FIG. 2 is a schematic structural view of FIG. 1 with the outer wall of the housing 12 removed;
FIG. 3 is a schematic cross-sectional view of FIG. 2;
FIG. 4 is another angular view of FIG. 3;
FIG. 5 is an enlarged schematic view at A of FIG. 4;
FIG. 6 is a schematic view of the assembly of the sliding housing 30 and the thermal insulator 32;
fig. 7 is a schematic view of the invention in cooperation with a pressure-driven opening and closing wire clamp.
Description of the reference numerals
1 base 2 Power supply side electrode
3-use electric side electrode 4 plug-in block
5 slide bar 6 slide seat
7 through hole 8 slideway with screw thread
9 fifth spring 10 force application hole
11 shield 12 casing
13 upper binding post 14 baffle
15 second support plate 16 fourth spring
17 insulating support 18 zinc oxide resistance card
19 lower electrode 20 fixed shaft
21 stop 22 pulley
23 feeding plate 24 limiting plate
25 fixing strip 26 fixing plate
27 first rope 28 second rope
29 third spring 30 sliding housing
31 first support plate 32 thermal insulation member
33 first spring 34 movable shutter
35 draw cord 36 first slide bar
37 first sliding groove 38 second spring
39 sliding blind 40 cover
41 second sliding groove 42 second sliding bar
43 umbrella cover 44 straight surface
45 inclined plane
Detailed Description
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, the use of the terms of orientation such as "upper and lower" in the case where no description is made to the contrary generally means the orientation in the assembled and used state. "inner and outer" refer to the inner and outer contours of the respective component itself.
In order to achieve the above object, as shown in fig. 1 to 7, a first aspect of the present invention provides a lightning protection contact, which includes a housing 12, wherein a storage component, a blocking component, a limiting component, a pushing component, a pulley assembly, and a driving component are disposed in the housing 12;
the storage part includes: the sliding shell 30 is a hollow structure with a through top part;
the first spring 33, the first spring 33 is fixedly connected with the bottom inner wall of the sliding housing 30;
the first supporting plate 31, the first supporting plate 31 is fixedly connected with the top of the first spring 33;
the stop block 21 is made of low-temperature alloy, wherein the low-temperature alloy is bismuth-tin low-melting alloy, and the melting point of the low-temperature alloy is 150 ℃. A plurality of stoppers 21 can be stored in the sliding housing 30, and the stoppers 21 are sequentially arranged above the first support plate 31;
the barrier includes: the cover plate 40 is arranged at the top of the sliding shell 30, an opening for the stop block 21 to pass through is formed in the cover plate 40, a slot penetrating through the opening is formed in the side wall of the cover plate 40, and first sliding grooves 37 are formed in two sides of the slot;
the sliding baffle 39 is provided with a first sliding bar 36 matched with the first sliding groove 37, the length of the first sliding bar 36 is smaller than that of the first sliding groove 37, the sliding baffle 39 is arranged in the groove of the cover plate 40 in a penetrating manner, and the sliding baffle 39 can open or close the opening by matching with the first sliding groove 37;
a second spring 38, wherein the second spring 38 is disposed in a space formed by the first sliding bar 36 and the first sliding groove 37, one end of the second spring 38 is fixedly connected to an end surface of the first sliding groove 37 facing the direction of the slot on the side wall of the cover plate 40, the other end of the second spring 38 is fixedly connected to an end surface of the first sliding bar 36 facing away from the direction of the slot on the side wall of the cover plate 40, and when the opening is in a closed state, the second spring 38 is in a relaxed state;
the stopper includes: the limiting plate 24 is arranged above the opening, and the height distance between the bottom of the limiting plate 24 and the upper end surface of the sliding baffle 39 is the height value of the stop block 21;
one end of the fixing strip 25 is fixedly connected with the limiting plate 24, and the other end of the fixing strip 25 is fixedly connected with the inner wall of the shell;
the pushing member comprises: the fixing plate 26 is arranged at one end, close to the groove, of the side wall of the cover plate 40, of the top of the cover plate 40, and the bottom of the fixing plate 26 is fixedly connected with the outer wall of the top of the cover plate 40;
a third spring 29, wherein the third spring 29 is horizontally arranged, and one end of the third spring 29 is fixedly connected with the fixing plate 26;
the feeding plate 23 is fixedly connected with the other end of the third spring 29;
the sheave assembly includes: the pulley block 22 is arranged above the opening, and the fixed end of the pulley block 22 is fixedly connected with the inner wall of the shell 12;
the rope part comprises a first rope 27 and a second rope 28, the first rope 27 and the second rope 28 are sleeved on the pulley block 22, one end of the first rope 27 is fixedly connected with the feeding plate 23, and the other end of the first rope 27 is fixedly connected with the driving part; one end of the second rope 28 is fixedly connected with the outer wall of the sliding baffle plate 39 far away from the opening closing surface, and the other end of the second rope 28 is fixedly connected with the driving piece.
The beneficial effects of the above technical scheme are: have a plurality of dogs in the lightning-arrest contact, can change the dog through the driving piece drive, easy operation saves a large amount of work load.
In order to make the structure of driving piece more reliable and simple and practical, the driving piece includes: the two ends of the fixed shaft 20 are fixedly connected with the inner wall of the shell 12;
the middle part of the baffle plate 14 is provided with a round hole matched with the fixed shaft 20, the baffle plate 14 is sleeved on the fixed shaft 20, and the bottom surface of one end of the baffle plate 14 can be abutted against the upper end surface of the stop block 21 positioned above the cover plate 40;
the baffle plate 14 is far away from the lower portion of the other end abutted to the stop block 21, the fourth spring 16 is arranged below the other end, a second supporting plate 15 is arranged between the fourth spring 16 and the baffle plate 14, the top of the second supporting plate 15 is abutted to the stop plate 14, the bottom of the second supporting plate is fixedly connected with the fourth spring 16, the other end of the fourth spring 16 is fixedly connected with the bottom of the shell, and the stop block 21 is abutted to the bottom surface of the baffle plate 14, and the fourth spring 16 is in a compressed state.
Further, the lightning protection contact includes: the umbrella cover 43, the said umbrella cover 43 is set up on the outer wall of the said body 12;
a zinc oxide resistor disc 18, wherein the housing 12 has a plurality of layers of zinc oxide resistor discs 18 therein, and the zinc oxide resistor disc 18 is arranged below the fourth spring 16;
the insulating support 17 is arranged around the zinc oxide resistor disc, the top of the insulating support 17 is fixedly connected with the inner wall of the top of the shell 12, the bottom of the insulating support 17 is fixedly connected with the inner wall of the bottom of the shell 12, and an opening is formed in the side wall, close to the opening, of the insulating support 17 and used for the stop block 21 to pass through;
a lower electrode 19, wherein the lower electrode 19 is arranged below the zinc oxide resistor disc 18;
and the upper binding post 13 is hinged with one end of the baffle plate 14 close to the fourth spring 16.
As shown in fig. 7, the upper terminal 13 is inserted into the force applying hole of the pressure-driven opening/closing wire clamp and abuts against the lower part of the insertion block 4; the pressure-driven opening and closing wire clamp comprises a base 1, wherein coaxial through holes are formed in two sides of the base 1, and a power supply side electrode 2 and a power utilization side electrode 3 are embedded into the through holes; a threaded through hole 7 is formed above the base 1, threads are formed on the outer side of the sliding seat 6, the sliding seat is screwed in the threaded through hole, and a slide way 8 is arranged in the middle of the sliding seat 6; one end of the insertion block is a straight surface 44, the other end of the insertion block is an inclined surface 45, the surface of the power supply side electrode 2 corresponding to the insertion block 4 is the straight surface 44, and the surface of the power utilization side electrode 3 corresponding to the insertion block 4 is the inclined surface 45; the insertion block 4 is provided between the power supply side electrode 2 and the power consumption side electrode 3; a sliding rod 5 is arranged above the insertion block 4, the sliding rod 5 is inserted into the slideway 8, and a fifth spring 9 is sleeved outside the sliding rod 5; and a force application hole 10 is formed in the position, corresponding to the insertion block 4, below the base.
Wherein, the inclined angle of inclined plane is 45 degrees. The base 1 is cylindrical. The axis of the force application hole 10 is coincident with the axis of the sliding rod 5. The fourth spring 16 has a much larger spring force than the fifth spring.
In order to better protect the pressure driven opening and closing wire clamp, a protective cover 11 is arranged outside the pressure driven opening and closing wire clamp.
For the dog of better protection storage in sliding housing 30 not by overvoltage current high temperature melting, be provided with thermal-insulated piece 32 in the casing 12, thermal-insulated piece 32 sets up sliding housing 30 is around, in order to let the staff more relaxed change sliding housing 30 in dog 21, thermal-insulated piece 32 with be equipped with second sliding tray 41 on the inner wall that sliding housing 30 meets, be equipped with on sliding housing 30's the outer wall with the second sliding strip 42 of second sliding tray 41 looks adaptation, the bottom of casing 12 is equipped with movable switching board 34 and supplies sliding housing 30 passes through, movable switching board 34 with the bottom of casing 12 is articulated.
In order to enable a worker to more directly observe the use condition of the stopper 21 in the sliding housing 30, an observation window is arranged on the outer wall of the sliding housing 30. Preferably, the viewing window is made of a transparent material, such as glass or transparent plastic.
To allow the sliding shutter 39 to be more fluid when closing the opening, the stopper 21 has slopes at both the top and bottom of the side wall near the fixed plate 26.
In order to enable the lightning protection contact to reset more simply and safely and restore the working state again, a pull rope 35 is arranged at the bottom of the second support plate 15, one end of the pull rope 35 is fixedly connected with the second support plate 15, and the other end of the pull rope penetrates out of the bottom of the shell 12.
A second aspect of the invention provides a transformer having a lightning protection contact as described above.
The beneficial effects of the above technical scheme are: this transformer can switch on through arrester and earthing terminal when meetting the thunderbolt, has broken off simultaneously and has been connected with the power consumption end, and the security greatly increased of equipment.
The working principle of the transformer of the invention is briefly explained below:
when lightning strike occurs, the current melts the stop block 21 abutted against one end of the bottom of the baffle plate 14, the fourth spring 16 pops up to push the baffle plate 14, the baffle plate 14 overturns under the action of the fixed shaft 20, one end of the baffle plate 14, which is positioned at the fourth spring 16, moves upwards to drive the upper binding post 13 hinged with the baffle plate to move upwards, and further presses the plugging block 4 to move upwards, and as the contact surface of the plugging block 4 and the power supply side is a straight surface, the connection is always kept, and the contact surface of the plugging block 4 and the power utilization side is an inclined surface, therefore, the plugging block 4 rises to cause the disconnection of the plugging block 4 and the power utilization side electrode 1, so that the lightning strike current is conducted with the grounding end through the lightning arrester, meanwhile, the connection with the power utilization end is disconnected, and the power utilization end is connected. One end of the baffle plate 14 abutting against the stopper 21 is turned downwards, the first rope 27 and the second rope 28 connected with the baffle plate are pulled, the feeding plate 23 and the sliding baffle plate 39 are pulled, the opening of the upper end cover plate 40 of the sliding shell 30 is opened, and the stopper 21 in the sliding shell 30 moves upwards under the elastic force of the first spring 33 until abutting against the limit plate 24. After the lightning strike, the staff pulls the pull rope 35 outside the shell, so as to pull the second supporting plate 16 to move downwards, one end of the baffle plate 14 moving upwards loses the supporting force to move downwards, the other end of the baffle plate 14 moves upwards to loosen the pulling force on the first rope 27 and the second rope 28, the second spring 38 restores the loose state, the sliding baffle plate 39 is driven to close the opening on the cover plate 40, the third spring 29 restores the loose state to push the stop block 21 on the sliding baffle plate 39, the top of the stop block 21 is abutted to the bottom of the baffle plate 14, and the staff loosens the pull rope 35 to complete the replacement process.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (9)
1. The lightning protection contact is characterized by comprising a shell (12), wherein a storage part, a blocking part, a limiting part, a pushing part, a pulley assembly and a driving part are arranged in the shell (12);
the storage part includes:
a sliding housing (30) which is a hollow structure with a through top;
the first spring (33) is fixedly connected with the inner wall of the bottom of the sliding shell (30);
the first supporting plate (31) is fixedly connected with the top of the first spring (33);
a stopper (21) made of a low-temperature alloy, wherein a plurality of stoppers (21) can be stored in the sliding housing (30), and the stoppers (21) are arranged above the first support plate (31);
the barrier includes:
the cover plate (40) is arranged at the top of the sliding shell (30), an opening for the stop block (21) to pass through is formed in the cover plate (40), a groove penetrating through the opening is formed in the side wall of the cover plate (40), and first sliding grooves (37) are formed in two sides of the groove;
the sliding baffle (39) is provided with a first sliding strip (36) matched with the first sliding groove (37), the length of the first sliding strip (36) is smaller than that of the first sliding groove (37), the sliding baffle (39) is arranged in the open groove of the cover plate (40) in a penetrating mode, and the opening can be opened or closed through the matching of the sliding baffle (39) and the first sliding groove (37);
the second spring (38) is arranged in a space formed by the first sliding bar (36) and the first sliding groove (37), one end of the second spring (38) is fixedly connected with an end face, facing the slotting direction, of the side wall of the cover plate (40), of the first sliding groove (37), the other end of the second spring (38) is fixedly connected with an end face, facing away from the slotting direction, of the side wall of the cover plate (40), of the first sliding bar (36), and when the opening is in a closed state, the second spring (38) is in a loose state;
the stopper includes:
the limiting plate (24) is arranged above the opening, and the height distance between the bottom of the limiting plate (24) and the upper end face of the sliding baffle (39) is the height value of the stop block (21);
one end of the fixing strip (25) is fixedly connected with the limiting plate (24), and the other end of the fixing strip is fixedly connected with the inner wall of the shell;
the pushing member comprises:
the fixing plate (26) is arranged at one end, close to the groove of the side wall of the cover plate (40), of the top of the cover plate (40), and the bottom of the fixing plate (26) is fixedly connected with the outer wall of the top of the cover plate (40);
the third spring (29) is horizontally arranged, and one end of the third spring (29) is fixedly connected with the fixing plate (26);
the feeding plate (23) is fixedly connected with the other end of the third spring (29);
the sheave assembly includes:
the pulley block is arranged above the opening, and the fixed end of the pulley block (22) is fixedly connected with the inner wall of the shell (12);
the rope piece comprises a first rope (27) and a second rope (28), and the first rope (27) and the second rope (28) are sleeved on the pulley block (22); one end of the first rope (27) is fixedly connected with the feeding plate (23), and the other end of the first rope is fixedly connected with the driving piece; one end of the second rope (28) is fixedly connected with the outer wall, far away from the opening closing surface, of the sliding baffle plate (39), and the other end of the second rope is fixedly connected with the driving piece.
2. A lightning protection contact according to claim 1, wherein the drive member comprises: the two ends of the fixed shaft (20) are fixedly connected with the inner wall of the shell (12);
the middle of the baffle (14) is provided with a round hole matched with the fixed shaft (20), the baffle (14) is sleeved on the fixed shaft (20), and the bottom surface of one end of the baffle (14) can be abutted against the upper end surface of the stop block (21) above the cover plate (40);
the spring support is characterized by comprising a fourth spring (16), the baffle (14) is far away from the position, below the other end of the baffle (21) in butt joint, the fourth spring (16) is provided with a second support plate (15) between the baffle (14), the top of the second support plate (15) is in butt joint with the baffle (14), the bottom of the second support plate is fixedly connected with the fourth spring (16), the other end of the fourth spring (16) is fixedly connected with the bottom of the shell, and the baffle (21) is in a compression state when the bottom of the baffle (14) is in butt joint with the fourth spring (16).
3. A lightning protection contact according to claim 2, characterized in that the lightning protection contact comprises:
the umbrella cover (43), the said umbrella cover (43) is set up on the outer wall of the said body (12);
a zinc oxide resistor disc (18), wherein the shell (12) is internally provided with a plurality of layers of zinc oxide resistor discs (18), and the zinc oxide resistor disc (18) is arranged below the fourth spring (16);
the insulating support body (17) is arranged around the zinc oxide resistor disc, the top of the insulating support body (17) is fixedly connected with the inner wall of the top of the shell (12), the bottom of the insulating support body (17) is fixedly connected with the inner wall of the bottom of the shell (12), and an opening is formed in the side wall, close to the opening, of the insulating support body (17) and used for the stop block (21) to pass through;
a lower electrode (19), the lower electrode (19) being disposed below the zinc oxide resistor sheet (18);
and the upper binding post (13) is hinged with one end of the baffle (14) close to the fourth spring (16).
4. A lightning protection contact according to claim 3, wherein a thermal insulating member (32) is arranged in the housing (12), the thermal insulating member (32) is arranged around the sliding housing (30), a second sliding groove (41) is arranged on an inner wall of the thermal insulating member (32) connected with the sliding housing (30), a second sliding bar (42) matched with the second sliding groove (41) is arranged on an outer wall of the sliding housing (30), a movable opening and closing plate (34) is arranged at the bottom of the housing (12) for the sliding housing (30) to pass through, and the movable opening and closing plate (34) is hinged to the bottom of the housing (12).
5. A lightning protection contact according to claim 3, characterized in that the upper terminal (13) is inserted into the force application hole of the pressure driven opening and closing wire clamp and abuts against the lower part of the insertion block (4); the pressure-driven opening and closing wire clamp comprises a base (1), wherein coaxial through holes are formed in two sides of the base (1), and a power supply side electrode and a power utilization side electrode are embedded into the through holes; a threaded through hole (7) is formed above the base, threads are formed on the outer side of the sliding seat (6), the sliding seat is screwed in the threaded through hole, and a slide way (8) is arranged in the middle of the sliding seat (6); one end of the insertion block is a straight surface (44), the other end of the insertion block is an inclined surface (45), the surface of the power supply side electrode (2) corresponding to the insertion block (4) is the straight surface (44), and the surface of the power utilization side electrode (3) corresponding to the insertion block (4) is the inclined surface (45); the insertion block (4) is arranged between the power supply side electrode (2) and the power utilization side electrode (3); a sliding rod (5) is arranged above the inserting block (4), the sliding rod (5) is inserted into the sliding way (8), and a fifth spring (9) is sleeved outside the sliding rod (5); and a force application hole (10) is formed in the position, corresponding to the insertion block (4), below the base.
6. A lightning protection contact according to claim 4, characterised in that a protective cover (11) is arranged outside the pressure-actuated switching clamp.
7. A lightning protection contact according to claim 4, characterized in that a pulling rope (35) is arranged at the bottom of the second support plate (15), one end of the pulling rope (35) is fixedly connected with the second support plate (15), and the other end of the pulling rope penetrates out of the bottom of the shell (12).
8. A lightning protection contact according to claim 1, characterized in that the stop (21) has a bevel near the top and bottom of the side wall of the fixing plate (26).
9. A transformer, characterized in that it comprises a lightning protection contact according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011129701.7A CN112349500A (en) | 2020-10-21 | 2020-10-21 | Lightning-protection contact and transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011129701.7A CN112349500A (en) | 2020-10-21 | 2020-10-21 | Lightning-protection contact and transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112349500A true CN112349500A (en) | 2021-02-09 |
Family
ID=74359417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011129701.7A Withdrawn CN112349500A (en) | 2020-10-21 | 2020-10-21 | Lightning-protection contact and transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112349500A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110070982A (en) * | 2019-06-03 | 2019-07-30 | 杭州初始服饰有限公司 | A kind of transformer |
| CN110854681A (en) * | 2019-11-02 | 2020-02-28 | 黎兴文 | Power electrical transformer with lightning protection |
| CN110911142A (en) * | 2019-12-26 | 2020-03-24 | 辽宁华隆电力科技股份有限公司 | Lightning-protection contact for three-dimensional wound core transformer |
| CN213277761U (en) * | 2020-10-21 | 2021-05-25 | 衢州学院 | Lightning-protection contact and transformer |
-
2020
- 2020-10-21 CN CN202011129701.7A patent/CN112349500A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110070982A (en) * | 2019-06-03 | 2019-07-30 | 杭州初始服饰有限公司 | A kind of transformer |
| CN110854681A (en) * | 2019-11-02 | 2020-02-28 | 黎兴文 | Power electrical transformer with lightning protection |
| CN110911142A (en) * | 2019-12-26 | 2020-03-24 | 辽宁华隆电力科技股份有限公司 | Lightning-protection contact for three-dimensional wound core transformer |
| CN213277761U (en) * | 2020-10-21 | 2021-05-25 | 衢州学院 | Lightning-protection contact and transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213277761U (en) | Lightning-protection contact and transformer | |
| CN108075245A (en) | Multifunction power operation lever | |
| CN209880296U (en) | Composite zinc oxide lightning arrester | |
| CN112349500A (en) | Lightning-protection contact and transformer | |
| CN208257381U (en) | A kind of surge protection device and surge protection device | |
| CN101834375A (en) | Overload protective socket | |
| CN108598815A (en) | Home switch with function of safety protection | |
| CN211016980U (en) | Pressure-driven opening and closing wire clamp | |
| CN208027997U (en) | A kind of connected structure of plug in circuit breaker | |
| CN212968502U (en) | Electric power facility lightning arrester lifted through ejection sleeve | |
| CN114050565B (en) | Emergency circuit protection device with self-checking function before circuit connection | |
| CN215645146U (en) | Novel response thunder protection device | |
| CN110071025B (en) | Intelligent circuit fusing protector | |
| CN112466685B (en) | Switch operating device | |
| CN208904652U (en) | A kind of Surge Protector | |
| CN112864714A (en) | Automatic pop-up anti-loosening connector | |
| CN213072044U (en) | Power line fixing frame | |
| CN110957196A (en) | Pressure-driven opening and closing wire clamp | |
| CN213959338U (en) | Automatically controlled cabinet of outage low pressure opens door | |
| CN220731944U (en) | Power line plug with fuse | |
| CN105790000B (en) | A kind of cable plug with self-protection function | |
| CN211313814U (en) | Electric door closer | |
| CN215731136U (en) | Track-type tripping structure hot plug lightning protection module of piezoresistor | |
| CN216354968U (en) | Quick access device and access box | |
| CN217444735U (en) | Electrical cabinet grounding device convenient to install and maintain |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210209 |