CN114843138A - Practical novel isolating switch - Google Patents
Practical novel isolating switch Download PDFInfo
- Publication number
- CN114843138A CN114843138A CN202210459938.4A CN202210459938A CN114843138A CN 114843138 A CN114843138 A CN 114843138A CN 202210459938 A CN202210459938 A CN 202210459938A CN 114843138 A CN114843138 A CN 114843138A
- Authority
- CN
- China
- Prior art keywords
- shifting block
- assembly
- air bag
- translation
- energy accumulator
- 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.)
- Pending
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
- H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/08—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/22—Selection of fluids for arc-extinguishing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
- H01H33/40—Power arrangements internal to the switch for operating the driving mechanism using spring motor
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention relates to the field of low-voltage isolating switches, in particular to a practical novel isolating switch, wherein a handle is connected with a translation shifting block in a driving way, the translation shifting block is connected with a shifting rod, the upper ends of a damping energy accumulator and an air bag assembly are respectively hinged with the two ends of the shifting rod, the lower ends of the damping energy accumulator and the air bag assembly are respectively hinged with a mechanism shell, and the air bag assembly is provided with an arc extinguishing exhaust pipe; the rotating shifting block and the moving contact component in the monopole component are connected and synchronously rotate, the arc extinguishing exhaust pipe is in butt joint with the tubular air passage, the rotating handle can simultaneously drive the translation shifting block to translate and the rotating shifting block to rotate, the moving contact component is driven to rotate when the rotating handle is rotated, so that the static contact piece and the moving contact component are contacted and separated, the air bag component is driven to compress through the translation shifting block to translate, the air bag component is blown to the contact point of the static contact piece and the moving contact component through the tubular air passage, and electric arc is led into the arc extinguishing chamber. The isolating switch can blow the electric arc to the arc extinguish chamber, and the timing of blowing can be controlled through the switch operation linkage.
Description
Technical Field
The invention relates to the field of low-voltage isolating switches, in particular to a novel practical isolating switch.
Background
The low-voltage isolating switch is used for a low-voltage switch circuit, is an electric appliance which is most frequently used in daily life, and can change the operation mode of the circuit.
At present, in a common low-current isolating switch on the market, electric arcs generated during opening can not be completely absorbed by arc extinguishing grids of an arc extinguishing chamber, other electric arcs are continuously combusted between contacts, the switch performance cannot achieve an ideal effect, and the service life of the switch is shortened along with the prolonging of service time.
Disclosure of Invention
In order to solve the problems, the invention provides a novel isolating switch which can blow an electric arc to an arc extinguish chamber and can control the blowing time in a linkage manner through switch operation.
In order to achieve the purpose, the invention adopts the technical scheme that:
a practical novel isolating switch comprises an operating mechanism and a single-pole assembly, wherein the operating mechanism comprises a mechanism shell, a handle, a translation shifting block, a shifting rod, a damping energy accumulator, a rotation shifting block and an air bag assembly, the handle, the translation shifting block, the rotation shifting block and the air bag assembly are mounted in the mechanism shell, the handle is connected with the translation shifting block in a driving mode, the shifting rod is connected with the translation shifting block, cavities are formed in the mechanism shell corresponding to two ends of the shifting rod, the damping energy accumulator and the air bag assembly are respectively arranged in the two cavities, the upper ends of the damping energy accumulator and the air bag assembly are respectively hinged with two ends of the shifting rod, the lower ends of the damping energy accumulator and the air bag assembly are respectively hinged with the mechanism shell, the air bag assembly is hollow, and the air bag assembly is provided with an arc extinguishing exhaust pipe;
the single-pole assembly comprises an assembly shell, a static contact piece, an arc extinguish chamber and a moving contact assembly, wherein the static contact piece, the arc extinguish chamber and the moving contact assembly are arranged in the assembly shell;
arc extinguishing blast pipe and tubulose air flue butt joint, turning handle can drive the translation shifting block translation simultaneously and rotate the shifting block rotation, and moving contact subassembly is rotatory when turning handle to make quiet contact piece and moving contact realize contact and separation, and through translation shifting block translation drive gasbag subassembly compression, make the gasbag subassembly blow by the contact point of tubulose air flue to quiet contact piece and moving contact subassembly, make electric arc introduce the explosion chamber.
Preferably, the airbag module comprises an elastic deformation cavity and a return spring, the return spring is arranged in the inner cavity of the elastic deformation cavity, and the top and the bottom of the elastic deformation cavity are respectively provided with a first hinge hole and a second hinge hole.
Preferably, the elastic deformation cavity is a columnar elastic rubber cavity.
Preferably, the internal cavity of the elastically deformable cavity body has a variable cross-sectional shape, the cross-sectional area of the middle part of the internal cavity of the elastically deformable cavity body is larger than the cross-sectional areas of the internal cavities on both sides, and the internal cavity of the elastically deformable cavity body is spindle-shaped.
Preferably, the damping energy accumulator has an energy accumulation critical point, and when the deflector rod drives the damping energy accumulator to swing beyond the energy accumulation critical point, the damping energy accumulator is rapidly released, so that the air bag component is rapidly compressed.
Preferably, the static contact piece is provided with a static contact arranged close to the arc extinguish chamber, the static contact is provided with an air passing hole communicated with the tubular air passage, the static contact is located above the opening of the arc extinguish chamber, and the contact point is located between the air passing hole and the arc extinguish chamber.
Preferably, the monopole element has two symmetrically arranged stationary contact pieces inside.
Preferably, there are two groups of the single-pole assemblies, and the two groups of the single-pole assemblies are respectively arranged at two sides of the operating mechanism.
The beneficial effects of the invention are as follows:
the isolating switch drives the air bag assembly to compress and release through the parallel movement of the shifting block and the shifting rod inside the operating mechanism, the air bag assembly is compressed to generate air flow to blow to the static contacts of the monopole bodies on the left side and the right side through the air pipes, the closing of the operating mechanism simultaneously drives the monopole bodies to realize the on-off of current, and the air flow blows the arc generated by the monopole bodies to the arc extinguish chamber.
This isolator only needs operating device motion just can realize the compression and the release of gasbag, has the spring at the internal portion of elastic deformation cavity, and the elastic deformation cavity body releases the air current behind the compression spring, and this switch need not realize this function with the help of extra solitary gasbag, and operating device just can drive the gasbag subassembly and realize breathing in, the effect of blowing.
Drawings
Fig. 1 is a schematic structural diagram of a novel isolating switch of the invention.
Fig. 2 is an exploded view of an operating mechanism in a novel isolating switch according to the present invention.
Fig. 3 is an internal schematic view of a monopole assembly in a switching-on state of an operating mechanism in a novel isolating switch according to the invention.
Fig. 4 is an internal schematic view of the operating mechanism in a closing state of the operating mechanism in the novel isolating switch of the invention.
Fig. 5 is an internal schematic view of the monopole assembly during the opening state of the operating mechanism in the novel isolating switch of the invention.
Fig. 6 is an internal schematic view of the operating mechanism in the open state of the operating mechanism in the novel isolating switch of the invention.
Fig. 7 is a schematic view of an airbag module in an operating mechanism of a novel isolating switch of the invention.
The reference numerals include:
10-an operating mechanism, 11-an upper cover, 12-a handle, 13-a translation shifting block, 14-an upper shell, 15-a shifting rod, 16-a damping energy accumulator, 17-a rotation shifting block, 18-a base, 19-an air bag component, 191-an arc extinguishing exhaust pipe, 192-an elastic deformation cavity body, 193-a first hinge hole, 194-a second hinge hole, 20-a single-pole component, 21-a tubular air passage, 22-a static contact piece, 221-a static contact, 222-a contact point, 223-an air passing hole, 23-an arc extinguishing chamber, 24-a right shell, 25-a movable contact component and 251-a movable contact.
Detailed Description
In order to make the purpose, technical solution and advantages of the present technical solution more clear, the present technical solution is further described in detail below with reference to specific embodiments. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present teachings.
As shown in fig. 1-7, the present embodiment provides a novel isolating switch, which includes an operating mechanism 10 and a monopole assembly 20, wherein the operating mechanism 10 includes a mechanism housing, and a handle 12, a translational shift block 13, a shift lever 15, a damping energy accumulator 16, a rotational shift block 17 and an airbag assembly 19 mounted in the mechanism housing, the handle 12 is connected to the translational shift block 13 in a driving manner, the translational shift block 13 is connected to the shift lever 15, the mechanism housing is provided with chambers corresponding to two ends of the shift lever 15, the damping energy accumulator 16 and the airbag assembly 19 are respectively disposed in the two chambers, upper ends of the damping energy accumulator 16 and the airbag assembly 19 are respectively hinged to two ends of the shift lever 15, lower ends of the damping energy accumulator 16 and the airbag assembly 19 are respectively hinged to the mechanism housing, the airbag assembly 19 is hollow, and the airbag assembly 19 has an exhaust pipe 191; the single-pole assembly 20 comprises an assembly shell 24, and a static contact piece 22, an arc extinguishing chamber 23 and a movable contact assembly 25 which are arranged inside the assembly shell 24, wherein the rotating shifting block 17 and the movable contact assembly 25 are connected and rotate synchronously, the assembly shell 24 is provided with a tubular air passage 21, and a contact point 222 of the static contact piece 22 and the movable contact assembly 25 is arranged between the tubular air passage 21 and the arc extinguishing chamber 23, in the embodiment, the single-pole assembly 20 is internally provided with two symmetrically arranged static contact pieces 22; the arc extinguishing exhaust pipe 191 is in butt joint with the tubular air passage 21, the rotating handle 12 can drive the translation shifting block 13 to translate and the rotation shifting block 17 to rotate simultaneously, when the rotating handle 12, the static contact piece 22 and the moving contact assembly 25 achieve opening and closing, the translation shifting block 13 drives the shifting rod 15 to move in parallel and drive the air bag assembly 19 to compress, and therefore air flow is generated. The air bag assembly 19 blows air from the tubular air duct 21 to the contact point 222 of the static contact piece 22 and the movable contact assembly 25, so that the electric arc is introduced into the arc extinguishing chamber 23.
The specific structure of the present disconnector will be described in detail below.
As shown in fig. 1, there is one operation mechanism 10, and there are two sets of monopole elements 20, and the two sets of monopole elements 20 are respectively installed at both sides of the operation mechanism 10.
As shown in fig. 2, the operating mechanism 10 includes an upper cover 11, a handle 12, a translational shift block 13, an upper housing 14, a shift lever 15, a damping energy accumulator 16, a rotational shift block 17, a base 18, and an airbag module 19, as shown in fig. 4, the upper housing 14 and the base 18 are combined to form two chambers inside, the airbag module 19 and the damping energy accumulator 16 are respectively disposed in the two chambers, and the shift lever 15 is disposed inside the upper housing 14. The upper cover 11 covers the top of the upper shell 14, a cavity is formed between the upper cover 11 and the upper shell 14, and the handle 12 and the translation shifting block 13 are arranged in the cavity between the upper cover 11 and the upper shell 14.
As shown in fig. 7, in the present embodiment, the airbag module 19 includes an elastically deformable cavity 192 and a return spring provided in an inner cavity of the elastically deformable cavity 192, and the elastically deformable cavity 192 has first and second hinge holes 193 and 194 at the top and bottom thereof, respectively.
As shown in fig. 3, when the moving contact 251 of the moving contact assembly 25 contacts with the fixed contact 221 of the fixed contact piece 22, the disconnector is in a closed state. As shown in fig. 4, when in the closed state, the air bag module 19 of the operating mechanism 10 is biased to the right, the return spring in the elastically deformed hollow cavity 192 is in the fully released state, the damping energy accumulator 16 is in the nearly vertical state, but the top end is slightly biased to the right, and the spring on the damping energy accumulator 16 is in the compressed state.
When the moving contact 251 of the moving contact assembly 25 is separated from the fixed contact 221 of the fixed contact piece 22 as shown in fig. 5, the isolating switch is in an open state. As shown in fig. 6, when in the open state, the fixed contact 221 and the movable contact 251 are separated.
As shown in fig. 4 and 6, it is preferable that the damping energy accumulator 16 has an energy accumulation critical point, and after the deflector rod 15 rotates the damping energy accumulator 16 to go beyond the energy accumulation critical point, the damping energy accumulator 16 is rapidly released, so that the air bag module 19 is rapidly compressed. When the isolating switch is switched from a closing state to an opening state, the damping energy accumulator 16 is switched from a state slightly to the right side of the top in fig. 4 to an upright state, and the process is an energy accumulation process. When the damping energy accumulator 16 is released after passing through the upright state, the fixed contact 221 and the movable contact 251 are completely separated and an electric arc may be generated, at this time, due to the action of the internal spring of the damping energy accumulator 16, the damping energy accumulator 16 is rapidly changed from the upright state to the state of deflecting the top to the left, in the process, the return spring in the air bag assembly 19 is gradually compressed, the volume of the internal cavity of the elastically deformed hollow cavity 192 is reduced, the air inside the elastically deformed hollow cavity 192 is blown out by the arc extinguishing exhaust pipe 191, the blown-out gas is blown into the monopole assembly 20 through the tubular air passage 21, in the process, the path of the gas flow is as shown by an arrow in fig. 3, finally, the electric arc is guided to the arc extinguishing chamber 23, the monopole assembly 20 is exhausted through the exhaust hole on the assembly housing 24, at this time, the damping energy accumulator 16 is completely released, and the interior of the monopole assembly 20 is as shown in fig. 6.
As shown in fig. 4, it is preferable that the elastic deformation cavity 192 is a columnar elastic rubber cavity. The internal cavity of the elastically deformable cavity 192 has a variable cross-sectional shape, the cross-sectional area of the middle portion of the internal cavity of the elastically deformable cavity 192 is larger than the cross-sectional areas of the internal cavities on both sides, and the internal cavity of the elastically deformable cavity 192 is spindle-shaped. In the process of compressing the elastic deformation cavity 192, the elastic deformation cavity 192 can deform and expand along the larger cross-sectional area of the middle part, so that the compression state of the elastic deformation cavity 192 is controllable, and the elastic deformation cavity 192 is integrally changed into a short column-shaped structure.
As shown in fig. 3, the stationary contact piece 22 has a stationary contact 221 disposed adjacent to the movable contact assembly 25, the stationary contact 221 is provided with a gas passing hole 223, the gas passing hole 223 is communicated with the tubular gas passage 21, the stationary contact 221 is located above the opening of the arc extinguishing chamber 23, and the contact point 222 is located between the gas passing hole 223 and the arc extinguishing chamber 23, which can further enhance the strength and directionality of the gas during the blowing and arc striking.
This isolator drives gasbag subassembly 19 compression and release through operating device 10's removal closure, gasbag subassembly 19's compression can produce the air current and blow to the static contact of left and right sides monopole body through the trachea, operating device 10's closure drives monopole body simultaneously and realizes the electric current break-make, and the air current blows to explosion chamber 23 with the electric arc that the monopole produced, the isolator among the prior art is far surpassed to the arc extinguishing effect, and the action of the arc extinguishing of blowing and the action of change over switch operation go on in step, the opportunity of blowing is accurate, do not need the mechanism of blowing of extra independent action.
The foregoing is only a preferred embodiment of the present invention, and many variations in the specific embodiments and applications of the invention may be made by those skilled in the art without departing from the spirit of the invention, which falls within the scope of the claims of this patent.
Claims (8)
1. A practical novel isolating switch is characterized in that: the mechanism comprises an operating mechanism and a monopole assembly, wherein the operating mechanism comprises a mechanism shell, a handle, a translation shifting block, a shifting rod, a damping energy accumulator, a rotation shifting block and an air bag assembly, the handle, the translation shifting block, the shifting rod, the rotation shifting block and the air bag assembly are arranged in the mechanism shell, the handle is connected with the translation shifting block in a driving mode, the translation shifting block is connected with the shifting rod, cavities are formed in the mechanism shell corresponding to two ends of the shifting rod, the damping energy accumulator and the air bag assembly are respectively arranged in the two cavities, the upper ends of the damping energy accumulator and the air bag assembly are respectively hinged with two ends of the shifting rod, the lower ends of the damping energy accumulator and the air bag assembly are respectively hinged with the mechanism shell, the air bag assembly is hollow, and the air bag assembly is provided with an arc extinguishing exhaust pipe;
the single-pole assembly comprises an assembly shell, a static contact piece, an arc extinguish chamber and a moving contact assembly, wherein the static contact piece, the arc extinguish chamber and the moving contact assembly are arranged in the assembly shell;
arc extinguishing blast pipe and tubulose air flue butt joint, turning handle can drive the translation shifting block translation simultaneously and rotate the shifting block rotation, and moving contact subassembly is rotatory when turning handle to make quiet contact piece and moving contact realize contact and separation, and through translation shifting block translation drive gasbag subassembly compression, make the gasbag subassembly blow by the contact point of tubulose air flue to quiet contact piece and moving contact subassembly, make electric arc introduce the explosion chamber.
2. The utility model discloses isolator according to claim 1 characterized in that: the airbag assembly comprises an elastic deformation cavity body and a reset spring, wherein the reset spring is arranged in an inner cavity of the elastic deformation cavity body, and the top and the bottom of the elastic deformation cavity body are respectively provided with a first hinge hole and a second hinge hole.
3. The utility model discloses a novel isolator of claim 2, characterized in that: the elastic deformation cavity body is a columnar elastic rubber cavity body.
4. The utility model discloses a novel isolator of claim 2, characterized in that: the elastic deformation cavity body is characterized in that the inner cavity of the elastic deformation cavity body is in a variable cross-section shape, the cross-sectional area of the middle part of the inner cavity of the elastic deformation cavity body is larger than that of the inner cavities on two sides, and the inner cavity of the elastic deformation cavity body is in a spindle shape.
5. The utility model discloses isolator according to claim 1 characterized in that: the damping energy accumulator is provided with an energy storage critical point, and when the deflector rod drives the damping energy accumulator to swing to cross the energy storage critical point, the damping energy accumulator is rapidly released, so that the air bag component is rapidly compressed.
6. The utility model discloses isolator according to claim 1 characterized in that: the static contact piece is provided with a static contact close to the arc extinguish chamber, the static contact is provided with an air passing hole, the air passing hole is communicated with the tubular air passage, the static contact is located above the opening of the arc extinguish chamber, and the contact point is located between the air passing hole and the arc extinguish chamber.
7. The utility model discloses isolator according to claim 1 characterized in that: the monopole assembly is internally provided with two symmetrically arranged static contact pieces.
8. The utility model discloses isolator according to claim 1 characterized in that: the monopole subassembly has two sets ofly, and two sets of monopole subassemblies are installed respectively in operating device both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210459938.4A CN114843138A (en) | 2022-04-28 | 2022-04-28 | Practical novel isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210459938.4A CN114843138A (en) | 2022-04-28 | 2022-04-28 | Practical novel isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114843138A true CN114843138A (en) | 2022-08-02 |
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ID=82568771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210459938.4A Pending CN114843138A (en) | 2022-04-28 | 2022-04-28 | Practical novel isolating switch |
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| Country | Link |
|---|---|
| CN (1) | CN114843138A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115206705A (en) * | 2022-09-14 | 2022-10-18 | 广州市兆能有限公司 | Relay with arc quenching device |
-
2022
- 2022-04-28 CN CN202210459938.4A patent/CN114843138A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115206705A (en) * | 2022-09-14 | 2022-10-18 | 广州市兆能有限公司 | Relay with arc quenching device |
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