CN213988724U - Conducting rod structure for vacuum arc-extinguishing chamber, vacuum arc-extinguishing chamber and pole - Google Patents
Conducting rod structure for vacuum arc-extinguishing chamber, vacuum arc-extinguishing chamber and pole Download PDFInfo
- Publication number
- CN213988724U CN213988724U CN202120187019.7U CN202120187019U CN213988724U CN 213988724 U CN213988724 U CN 213988724U CN 202120187019 U CN202120187019 U CN 202120187019U CN 213988724 U CN213988724 U CN 213988724U
- Authority
- CN
- China
- Prior art keywords
- conducting rod
- static
- movable
- contact
- contact seat
- 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.)
- Active
Links
Images
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model belongs to the technical field of vacuum arc extinguishing, a conducting rod structure, vacuum interrupter and utmost point post for vacuum interrupter is disclosed. The conducting rod structure for the vacuum arc extinguish chamber comprises a movable contact seat, a fixed contact seat and a magnetic reinforcing assembly. One side of the movable contact seat is provided with a movable contact, and the other side of the movable contact seat is provided with a movable conducting rod; one side of the static contact seat is provided with a static contact, the other side of the static contact seat is provided with a static conductive rod, and the static contact and the movable contact are arranged oppositely; and magnetic reinforcing components are arranged on the movable conducting rod and the static conducting rod. The utility model can prevent the weakening of the magnetic field when the conducting rod is far away from the contact seat by enhancing the magnetic field of the movable conducting rod or the static conducting rod through the magnetic reinforcing component, so that the strong magnetic field can be kept on the conducting rod, and the breaking capacity of the vacuum arc extinguish chamber is increased; the stronger magnetic field evenly distributed on the conductive rod also reduces the risk of contact erosion and increases the electrical life.
Description
Technical Field
The utility model relates to a vacuum arc extinguishing technical field especially relates to a conducting rod structure, vacuum interrupter and utmost point post for vacuum interrupter.
Background
The vacuum arc-extinguishing chamber is a core component of a vacuum switch and needs to reliably bear and break continuous rated current and short-circuit fault current. In order to ensure sufficient electric arc energy in the breaking process, the electromagnetic field of the breaking port can be strengthened by adopting different structures according to different breaking modes. The contact of the vacuum arc-extinguishing chamber mainly comprises a flat plate structure, a transverse magnetic structure and a longitudinal magnetic structure. The vacuum arc-extinguishing chamber with the flat-plate structure contact is mainly suitable for the condition of no short-circuit on-off requirement, and the on-off current of the vacuum arc-extinguishing chamber is smaller, so that the requirement can be met by adopting the existing structure. The vacuum arc-extinguishing chamber with transverse magnetic structure contact or longitudinal magnetic structure contact is mainly suitable for the condition with short circuit breaking requirement. Because the breaking current is large, under the condition of no magnetic field restriction, vacuum arcs between the contacts become a gathering form and move slowly on the surfaces of the contacts, and local ablation and melting on the surfaces of the contacts are aggravated, so that breaking failure is caused. The vacuum arc-extinguishing chamber adopting the transverse magnetic structure contact or the longitudinal magnetic structure contact can generate a corresponding magnetic field through the design of a current path when current flows between the electrodes, so that the control of electric arc is realized. When current flows through the transverse magnetic structure contact, the generated magnetic field is perpendicular to the direction of the electric arc, and the magnetic field force drives the concentrated electric arc to move at high speed on the surface of the contact, so that the contact is prevented from being locally and seriously ablated and melted. Common transverse magnetic contacts have a cup-shaped structure and a spiral groove structure. When the longitudinal magnetic structure contact passes through current, the generated magnetic field is parallel to the direction of the electric arc, and the magnetic field force restrains the electric arc to keep a diffusion state, so that the energy of the electric arc is uniformly distributed on the surface of the contact, and the local serious ablation and melting of the surface of the contact are avoided. Common longitudinal magnetic structure contacts have a cup-shaped structure and the like.
In the prior art, no matter the vacuum arc-extinguishing chamber of the transverse magnetic structure contact or the vacuum arc-extinguishing chamber of the longitudinal magnetic structure contact, the electromagnet magnetism gathering part is placed in the contact cup seat to enhance the magnetic field, but along with the increase of the distance between the conducting rod and the electromagnet magnetism gathering part, the magnetic field can be weakened sharply, the problem of disconnection is easily caused, the contact is ablated due to uneven distribution of the magnetic field, and the electric service life is shortened.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a conducting rod structure for vacuum interrupter to solve along with the conducting rod from the increase of contact seat distance, magnetic field can sharply weaken, the problem that electric life is low.
To achieve the purpose, the utility model adopts the following technical proposal:
a conducting rod structure for a vacuum arc-extinguishing chamber comprises:
the movable contact device comprises a movable contact seat, a movable contact and a movable conductive rod, wherein one side of the movable contact seat is provided with a movable contact, and the other side of the movable contact seat is provided with the movable conductive rod;
the static contact device comprises a static contact seat, a static contact and a static conductive rod, wherein one side of the static contact seat is provided with the static contact, the other side of the static contact seat is provided with the static conductive rod, and the static contact and the dynamic contact are arranged in opposite directions;
the magnetic reinforcing component is arranged on each of the movable conducting rod and the static conducting rod and used for reinforcing the magnetic field of the movable conducting rod or the static conducting rod.
Preferably, the magnetic reinforcing assembly comprises a first reinforcing member, the first reinforcing member comprising a through hole and a magnet gathering rod; the middle part of one end of the static conducting rod or the movable conducting rod is provided with the through hole along the axial direction of the static conducting rod or the movable conducting rod, and the magnet gathering rod is arranged in the through hole.
Preferably, the magnetic reinforcing assembly further comprises a second reinforcing member, and the second reinforcing member comprises a groove which is obliquely arranged along the circumferential direction of the static conductive rod or the dynamic conductive rod.
Preferably, the fixed contact seat and the movable contact seat are both internally provided with magnetic gathering reinforcing pieces, and the magnetic gathering reinforcing pieces are used for reinforcing magnetic fields on the fixed contact seat and the movable contact seat.
Preferably, the magnetism gathering reinforcing member has a ring-shaped structure.
Preferably, the movable conductive rod and the movable contact seat are in an integrated connection structure, and the static conductive rod and the static contact seat are in an integrated connection structure.
Preferably, the movable conducting rod and the static conducting rod are both made of oxygen-free copper.
An object of the utility model is to provide a vacuum interrupter still to solve the poor problem of breaking capacity.
A vacuum arc-extinguishing chamber comprises the conducting rod structure for the vacuum arc-extinguishing chamber.
Preferably, the gas-tight insulating shell is arranged outside the static contact seat and the dynamic contact seat.
An object of the utility model is to provide a utmost point post still to solve the low and not convenient to use's of dielectric strength problem.
A pole comprises the vacuum arc extinguish chamber.
The utility model has the advantages that:
the utility model provides a conducting rod structure for vacuum arc extinguish chamber, moving conducting rod and quiet conducting rod are all equipped with magnetism and strengthen the subassembly, magnetism strengthens the subassembly and is used for strengthening the magnetic field of moving conducting rod or quiet conducting rod, can prevent that the conducting rod from weakening when being farther away from the contact seat, make can keep high-intensity magnetic field on the conducting rod, increased the ability of breaking of vacuum arc extinguish chamber; the stronger magnetic field evenly distributed on the conductive rod also reduces the risk of contact erosion and increases the electrical life.
The utility model provides a vacuum interrupter, the breaking force is strong.
The utility model provides a utmost point post, high and convenient to use of insulating strength.
Drawings
Fig. 1 is a schematic view of a structure of a conducting rod for a vacuum interrupter according to an embodiment of the present invention.
In the figure:
1. a stationary contact base; 11. static contact;
2. a static conductive rod;
3. a magnetic reinforcing component; 31. a through hole; 32. a poly-magnet rod; 33. a groove;
4. a magnetic flux concentrating reinforcement;
5. a movable contact seat; 51. a moving contact;
6. and a movable conducting rod.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The embodiment provides a vacuum arc-extinguishing chamber, which can keep a uniform and high-strength magnetic field in the vacuum arc-extinguishing chamber, so that the breaking capacity is enhanced, and the electric service life can be prolonged.
Specifically, as shown in fig. 1, a conducting rod structure for a vacuum arc-extinguishing chamber includes a moving contact base 5, a stationary contact base 1 and a magnetic reinforcing component 3. One side of the movable contact seat 5 is provided with a movable contact 51, and the other side is provided with a movable conducting rod 6; one side of the static contact seat 1 is provided with a static contact 11, the other side is provided with a static conducting rod 2, and the static contact 11 and the movable contact 51 are arranged oppositely; the magnetic reinforcing components 3 are arranged on the movable conducting rod 6 and the static conducting rod 2, and the magnetic reinforcing components 3 are used for reinforcing the magnetic field of the movable conducting rod 6 or the static conducting rod 2, so that the magnetic field can be prevented from weakening when the conducting rod is farther away from the contact seat, a strong magnetic field can be kept on the conducting rod, and the breaking capacity of the vacuum arc extinguish chamber is improved; the stronger magnetic field evenly distributed on the conductive rod also reduces the risk of contact erosion and increases the electrical life.
Further, the magnetic reinforcing assembly 3 includes a first reinforcing member including a through hole 31 and a magnet gathering rod 32; the middle part of one end of the static conducting rod 2 or the movable conducting rod 6 is provided with a through hole 31 along the axial direction of the static conducting rod 2 or the movable conducting rod 6, and the magnet gathering rod 32 is arranged in the through hole 31, so that the magnetic field intensity on the static conducting rod 2 or the movable conducting rod 6 can be increased, the breaking capacity is improved, after power failure, the vacuum arc extinguish chamber can rapidly extinguish arc, and inhibit current from passing through, and the use is safe and reliable; gather magnet pole 32 material and be iron to set up in through-hole 31, can also strengthen static conducting rod 2 or move the structural strength of conducting rod 6, make static conducting rod 2 or move the impact force when conducting rod 6 can be better to bear the break-make, increase of service life.
Still further, magnetism reinforcing component 3 still includes the second reinforcement, and the second reinforcement includes recess 33, and recess 33 inclines to set up along static conducting rod 2 or the circumference of moving conducting rod 6, can further strengthen the magnetic field and the structural strength of static conducting rod 2 or moving conducting rod 6 and make magnetic field ability evenly distributed.
Specifically, all be equipped with in stationary contact seat 1 or the moving contact seat 5 and gather magnetism reinforcement 4, gather magnetism reinforcement 4 and be used for strengthening the magnetic field on stationary contact seat 1 or the moving contact seat 5 for contact seat department also can keep high-intensity magnetic field, improves the ability of cutting off.
Furthermore, the magnetism gathering reinforcing member 4 is of an annular structure and made of iron, so that the breaking capacity can be further increased.
In this embodiment, the movable conducting rod 6 and the movable contact seat 5 are of an integrated connection structure, and the static conducting rod 2 and the static contact seat 1 are of an integrated connection structure, so that the connection stability is good.
Preferably, the movable conducting rod 6 and the static conducting rod 2 are made of oxygen-free copper.
The embodiment also provides a vacuum arc-extinguishing chamber, which comprises the conducting rod structure for the vacuum arc-extinguishing chamber and has strong breaking capacity.
The vacuum arc extinguish chamber further comprises an airtight insulating shell, and an airtight insulating shell cover is arranged outside the static contact seat 1 and the moving contact seat 5, so that the vacuum arc extinguish chamber is in a vacuum state, is insulated from the outside, and can prevent dust and water.
The embodiment also provides a pole which comprises the vacuum arc extinguish chamber, and the pole is high in insulating strength and convenient to use.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a conducting rod structure for vacuum interrupter which characterized in that includes:
the contact device comprises a movable contact seat (5), wherein a movable contact (51) is arranged on one side of the movable contact seat (5), and a movable conducting rod (6) is arranged on the other side of the movable contact seat;
the static contact device comprises a static contact seat (1), wherein a static contact (11) is installed on one side of the static contact seat (1), a static conductive rod (2) is installed on the other side of the static contact seat (1), and the static contact (11) and the movable contact (51) are arranged in an opposite direction;
the magnetic reinforcing component (3), the movable conducting rod (6) and the static conducting rod (2) are both provided with the magnetic reinforcing component (3), and the magnetic reinforcing component (3) is used for reinforcing the magnetic field of the movable conducting rod (6) or the static conducting rod (2).
2. The structure of a conducting rod for vacuum interrupters according to claim 1 characterized in that said magnetic reinforcement assembly (3) comprises a first reinforcement comprising a through hole (31) and a flux concentrating rod (32); the middle part of one end of the static conducting rod (2) or the movable conducting rod (6) is provided with the through hole (31) along the axial direction of the static conducting rod (2) or the movable conducting rod (6), and the magnet gathering rod (32) is arranged in the through hole (31).
3. The structure of the conducting rod for the vacuum interrupter according to claim 2, characterized in that the magnetic reinforcing component (3) further comprises a second reinforcing member, the second reinforcing member comprises a groove (33), and the groove (33) is arranged along the circumferential direction of the static conducting rod (2) or the dynamic conducting rod (6) in an inclined manner.
4. The conducting rod structure for the vacuum arc-extinguishing chamber according to claim 1, characterized in that a magnetism gathering reinforcement (4) is arranged in each of the stationary contact base (1) and the movable contact base (5), and the magnetism gathering reinforcement (4) is used for reinforcing the magnetic field on the stationary contact base (1) and the movable contact base (5).
5. The structure of a conducting rod for a vacuum interrupter according to claim 4, characterized in that the magnetism gathering reinforcement (4) is a ring structure.
6. The conducting rod structure for the vacuum arc-extinguishing chamber according to claim 1, characterized in that the movable conducting rod (6) and the movable contact seat (5) are in an integrated connection structure, and the static conducting rod (2) and the static contact seat (1) are in an integrated connection structure.
7. The conducting rod structure for the vacuum arc-extinguishing chamber according to claim 1, characterized in that the material of the movable conducting rod (6) and the static conducting rod (2) is oxygen-free copper.
8. A vacuum interrupter, characterized by comprising a conducting rod structure for a vacuum interrupter according to any one of claims 1 to 7.
9. Vacuum interrupter according to claim 8, characterized by a gas-tight insulating housing, which covers the stationary contact block (1) and the moving contact block (5).
10. A pole, characterized in that it comprises a vacuum interrupter as claimed in any one of claims 8 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120187019.7U CN213988724U (en) | 2021-01-22 | 2021-01-22 | Conducting rod structure for vacuum arc-extinguishing chamber, vacuum arc-extinguishing chamber and pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120187019.7U CN213988724U (en) | 2021-01-22 | 2021-01-22 | Conducting rod structure for vacuum arc-extinguishing chamber, vacuum arc-extinguishing chamber and pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213988724U true CN213988724U (en) | 2021-08-17 |
Family
ID=77252084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120187019.7U Active CN213988724U (en) | 2021-01-22 | 2021-01-22 | Conducting rod structure for vacuum arc-extinguishing chamber, vacuum arc-extinguishing chamber and pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213988724U (en) |
-
2021
- 2021-01-22 CN CN202120187019.7U patent/CN213988724U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6506992B2 (en) | Vacuum interrupter for vacuum breaker | |
| EP2577698A1 (en) | Switch unit with arc-extinguishing units | |
| US8269129B2 (en) | Vacuum switch tube | |
| CN203103209U (en) | Vacuum arc extinguishing chamber and vacuum circuit breaker using same | |
| CN212810187U (en) | Relay with a movable contact | |
| CN105140073A (en) | Vacuum arc extinguishing chamber and operation method thereof | |
| CN110853971B (en) | Annular permanent magnet strong transverse magnetic DC vacuum arc-extinguishing chamber and DC vacuum switch | |
| CN213988724U (en) | Conducting rod structure for vacuum arc-extinguishing chamber, vacuum arc-extinguishing chamber and pole | |
| CN110379670B (en) | High-current-capacity vacuum arc extinguish chamber with fixed fracture | |
| WO2023036062A1 (en) | High-voltage direct current (dc) relay capable of enhancing arc extinguishing capability | |
| CN109801798B (en) | Double-breaker switch | |
| CN116504576A (en) | High-through-flow capacity contact structure and vacuum arc-extinguishing chamber using same | |
| CN107622908B (en) | Movable double-loop contact structure and vacuum arc-extinguishing chamber | |
| CN106783411B (en) | Direct current contactor | |
| CN216435800U (en) | High-voltage direct-current relay with short-circuit resisting structure | |
| CN113675036A (en) | Vacuum arc-extinguishing chamber contact structure with embedded Halbach array permanent magnet ring | |
| CN204966380U (en) | Vacuum arc extinguishing chamber | |
| CN110942950A (en) | Composite arc-extinguishing type DC contactor | |
| CN204966381U (en) | Vacuum arc extinguishing chamber | |
| CN212461511U (en) | Electric contact and vacuum arc-extinguishing chamber | |
| CN213519732U (en) | Vacuum arc extinguish chamber structure | |
| EP0264814A2 (en) | Vacuum circuit interrupter | |
| CN212750736U (en) | Static contact component of small-volume high-voltage direct-current contactor and direct-current contactor | |
| CN218918740U (en) | High-voltage direct-current contactor with high breaking force and dynamic and static contact structures | |
| CN203707013U (en) | Contact of vacuum circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |