Vacuum arc extinguishing device of intelligent quick-break switch
Through the design of an intelligent quick-break switch, the rapid movement of the electromagnetic block and the iron-cobalt-nickel metal contact rod is utilized, combined with the vacuum environment and the coordination between the guide rod and the groove, the problems of poor arc extinguishing ability and high operating cost of the vacuum arc extinguishing device are solved, and the arc extinguishing effect of rapid power outage and low cost is achieved.
Patent Information
- Application Number
- CN202422981977.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-12-04
AI Technical Summary
Existing vacuum arc extinguishing devices have poor arc extinguishing capabilities when disconnecting current and have high operating costs. In particular, due to the influence of the arc extinguishing medium inside the ceramic tube and the gas-producing material of the inner wall of the melting tube, the gas production is small and the rate is low, making it impossible to effectively blow the arc and cool.
It adopts an intelligent quick-break switch design, using an electromagnetic block and an iron-cobalt-nickel metal contact rod. The current instantly increases, magnetically adsorbing the contact rod to move rapidly, combined with a vacuum environment to achieve arc extinguishing function, and the position of the contact rod is stabilized by the cooperation of the guide rod and the groove, using friction to maintain the appropriate distance.
The invention realizes rapid power-off and arc extinguishing, improves arc extinguishing capability, reduces use cost, has a simple structure and is reusable.
Smart Images
Figure CN223462159U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a vacuum arc extinguishing device field, especially in intelligent quick break switch's vacuum arc extinguishing device. BACKGROUND
[0002] Vacuum arc extinguishing is a kind of electric vacuum device that utilizes vacuum working insulation arc extinguishing medium, and realizes the on-off function of electric power circuit by a pair of contacts sealed in vacuum, when it is disconnected to certain value of current, the resistance between electrode increases sharply and temperature improves rapidly in the moment of separation, electrode metal vaporization forms extremely high electric field intensity, leading to extremely intense emission and gap breakdown to produce vacuum arc, when power frequency current approaches zero, the increasing contact opening distance of vacuum arc plasma diffuses to all directions, after arc current zero-crossing, the medium of contact gap changes from conductor to insulator, so current is disconnected.
[0003] However, in the process of using, it is affected by arc extinguishing medium inside ceramic tube and gas production material of inner wall of fuse tube, so as to cause the problems of less gas production, low rate, unable to effectively blow arc and cool when arc is generated, poor arc extinguishing capacity, and part of the device is fused by melting of fuse, does not have reusable practicability, so as to cause the problem of high use cost in use. CONTENT OF THE UTILITY MODEL
[0004] The utility model mainly aims at providing a kind of vacuum arc extinguishing device of intelligent quick break switch, can effectively solve the problems in the background art.
[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows: a kind of vacuum arc extinguishing device of intelligent quick break switch, including insulating shell, the inside of the insulating shell is provided with shield case, the inside of the shield case is provided with two contacts, a certain gap is provided between the two contacts, the inside of the shield case is provided with touch guide rod, the both ends of the touch guide rod are in contact with the contact, the inside of the shield case is installed with guide rod, the surface of the touch guide rod is provided with guide slot, the guide rod is inserted into the inside of guide slot, the outside of the shield case is provided with driving assembly, for the movement of touch guide rod.
[0006] The driving assembly includes two electromagnetic blocks, the surface of the electromagnetic block is wrapped with insulating skin, the two electromagnetic blocks are installed between shield case and insulating shell, the two electromagnetic blocks are located at the end position of guide rod respectively, the outside of the insulating shell is provided with power module, the electromagnetic block is connected with power module by conducting wire.
[0007] The inside of the shield case is installed with extrusion rod, one end of the extrusion rod abuts on the surface of touch guide rod, one end of the extrusion rod is installed at one end close to one of the electromagnetic blocks, the guide rod and extrusion rod are all of insulating material.
[0008] The surface of the touch guide rod is provided with a groove, one end of the guide rod abuts against the inside of the groove, and the end of the guide rod is in full engagement with the groove.
[0009] The number of the guide rod and the groove is two.
[0010] The outside of the insulating shell is provided with a control module and a detection module, the detection module detects the current outside, and the control module controls the power module.
[0011] Compared with the prior art, the utility model has the advantages of the following beneficial effects:
[0012] 1、 the utility model discloses a power module, electromagnetic block and contact are set up, and the power module is powered to one electromagnetic block, and the magnetism of electromagnetic block can be made bigger when the current increases momentarily, and the inside of touch guide rod has iron cobalt nickel metal, so under the adsorption of electromagnetic block, the position can be moved rapidly, realizes the function of power failure, and the distance between two contacts is far, and the vacuum environment in the inside of insulating shell realizes the function of arc extinguishing.
[0013] 2、 the utility model discloses a groove and guide rod are set up, and touch guide rod moves to one end of guide rod, until guide rod is clamped in the inside of groove, because guide rod is in full engagement with the groove, so can utilize friction and make touch guide rod stable in the suitable position, and the structure is also very simple. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the whole structure schematic view of the vacuum arc extinguishing device of the intelligent quick disconnect switch of the utility model;
[0015] Figure 2 It is the guide rod position partial structure schematic view of the vacuum arc extinguishing device of the intelligent quick disconnect switch of the utility model;
[0016] Figure 3 It is the extrusion rod position partial structure schematic view of the vacuum arc extinguishing device of the intelligent quick disconnect switch of the utility model;
[0017] Figure 4 It is the guide groove position partial structure schematic view of the vacuum arc extinguishing device of the intelligent quick disconnect switch of the utility model;
[0018] Figure 5 It is the whole control block diagram of the vacuum arc extinguishing device of the intelligent quick disconnect switch of the utility model.
[0019] In the figure: 1, the insulating shell; 2, shield; 3, contact; 4, touch guide rod; 5, guide rod; 6, guide slot; 7, electromagnetic block; 8, power module; 9, conductive wire; 10, extrusion rod; 11, groove; 12, control module; 13, detection module. DETAILED DESCRIPTION
[0020] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.
[0021] As Figures 1-5 shown, a kind of vacuum arc extinguishing device of intelligent quick-break switch, including insulating shell 1, insulating shell 1 is ceramic material, the inside of the insulating shell 1 is provided with shield 2, shield 2 protects insulating shell 1, can prevent arc hit in the inside of insulating shell 1, prolongs the service life of insulating shell 1, the inside of the shield 2 is provided with two contacts 3, a certain gap is arranged between two the contact 3, the inside of the shield 2 is provided with touch guide rod 4, the both ends of the touch guide rod 4 are in contact with contact 3, guide rod 5 is installed in the inside of the shield 2, guide rod 5 and touch guide rod 4 are cross-shaped, the surface of the touch guide rod 4 is provided with guide slot 6, guide rod 5 is passed through the inside of guide slot 6, the outside of the shield 2 is provided with driving assembly, for the movement of touch guide rod 4.
[0022] Driving assembly makes touch guide rod 4 move along the bearing of guide rod 5, so that touch guide rod 4 is away from two contacts, realizes the function of power failure, and the distance between two contacts 3 is far, through the vacuum environment in the inside of insulating shell 1, realizes the function of arc extinguishing.
[0023] The driving assembly includes two electromagnetic blocks 7, the surface of the electromagnetic block 7 is wrapped with insulating skin, two the electromagnetic block 7 is installed between shield 2 and insulating shell 1, two the electromagnetic block 7 is located at the end position of guide rod 5, the outside of the insulating shell 1 is provided with power module 8, the electromagnetic block 7 is connected with power module 8 by conductive wire 9.
[0024] When needing power failure arc extinguishing, power module 8 supplies power to one of electromagnetic block 7, and the magnetic property of electromagnetic block 7 can be increased by the instantaneous increase of current, so that the inside of touch guide rod 4 has iron-cobalt-nickel metal, so that it can quickly move position under the adsorption of electromagnetic block 7, trigger the function of power failure arc extinguishing, compared with mechanical movement, it can act more quickly.
[0025] The shielding cover 2 is internally provided with an extrusion rod 10, one end of the extrusion rod 10 abuts against the surface of the touch guide rod 4, and one end of the extrusion rod 10 is mounted close to one end of one of the electromagnetic blocks 7; the guide rod 5 and the extrusion rod 10 are both made of insulating material, so as to ensure that the touch guide rod 4 is stably positioned between the two contacts 3.
[0026] The surface of the touch guide rod 4 is provided with a groove 11, one end of the guide rod 5 abuts against the inside of the groove 11, and the end of the guide rod 5 is in full engagement with the groove 11.
[0027] When conduction is needed, the power module 8 close to one end of the guide rod 5 is started, so that the surface of the corresponding electromagnetic block 7 is conductive, thereby moving the touch guide rod 4 to one end of the guide rod 5 until the guide rod 5 is clamped in the inside of the groove 11; since the guide rod 5 is in full engagement with the groove 11, the touch guide rod 4 can be stably positioned at the appropriate position by using friction, and the structure is very simple.
[0028] The number of the guide rod 5 and the groove 11 is both two.
[0029] The outside of the insulating shell 1 is provided with a control module 12 and a detection module 13; the detection module 13 detects the external current, and the control module 12 controls the power module 8; if the current detected by the detection module 13 is greater than a certain value, the starting of the power module 8 can be controlled by the control module 12, so as to further improve the reaction speed.
[0030] It should be noted that the utility model is a kind of vacuum arc extinguishing device of intelligent quick-break switch, when using, if the current detected by the detection module 13 is greater than a certain value, the starting of the power module 8 can be controlled by the control module 12, and the instantaneous increase of current can make the magnetism of the electromagnetic block 7 larger, the inside of the touch guide rod 4 has iron cobalt nickel metal, so under the adsorption of the electromagnetic block 7, it can quickly move position, realize the function of power-off, and the distance between the two contacts 3 is far, through the vacuum environment inside the insulating shell 1, realize the function of arc extinguishing, when needing to be electrified, the power module 8 makes another electromagnetic block 7 electrified, and the touch guide rod 4 moves until the extrusion rod 10 abuts against the inside of the groove 11.
[0031] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A vacuum arc extinguishing device of an intelligent quick-break switch, comprising an insulating shell (1), an inside of the insulating shell (1) is provided with a shielding cover (2), an inside of the shielding cover (2) is provided with two contacts (3), characterized in that: Two said contact (3) between a certain gap, the shield (2) is provided with the inside of the contact guide rod (4), both ends of the contact guide rod (4) and contact (3) contact, the shield (2) is provided with the inside of the guide rod (5), the surface of the contact guide rod (4) is provided with a guide slot (6), the guide rod (5) through the inside of the guide slot (6), the shield (2) is provided with a drive assembly outside, for the movement of the contact guide rod (4).
2. A vacuum arc suppressing device for a smart recloser according to claim 1, characterized in that: The drive assembly includes two electromagnetic blocks (7), the surface of the electromagnetic block (7) is wrapped with an insulating skin, two said electromagnetic block (7) is installed between the shield (2) and the insulating shell (1), two said electromagnetic block (7) is located at the end of the guide rod (5) position, the outside of the insulating shell (1) is provided with a power module (8), the electromagnetic block (7) is connected with the power module (8) through the conductive wire (9).
3. A vacuum arc suppressing device for a smart fault interrupter according to claim 2, wherein: The inside of the shield (2) is provided with an extrusion rod (10), one end of the extrusion rod (10) abuts against the surface of the contact guide rod (4), one end of the extrusion rod (10) is installed near one end of the electromagnetic block (7), the guide rod (5) and the extrusion rod (10) are both insulating materials.
4. A vacuum arc suppressing device for a smart fault interrupter according to claim 3, wherein: The surface of the contact guide rod (4) is provided with a groove (11), one end of the guide rod (5) abuts against the inside of the groove (11), the end of the guide rod (5) is filled with the groove (11).
5. A vacuum arc suppressing device for a smart fault interrupter according to claim 4, wherein: The number of the guide rod (5) and the groove (11) is two.
6. A vacuum arc suppressing device for a smart fault interrupter according to claim 2, wherein: The outside of the insulating shell (1) is provided with a control module (12) and a detection module (13), the detection module (13) detects the current outside, the control module (12) controls the power module (8).