CN209929220U - Single-phase permanent magnetic mechanism and vacuum circuit breaker - Google Patents
Single-phase permanent magnetic mechanism and vacuum circuit breaker Download PDFInfo
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- CN209929220U CN209929220U CN201920792429.7U CN201920792429U CN209929220U CN 209929220 U CN209929220 U CN 209929220U CN 201920792429 U CN201920792429 U CN 201920792429U CN 209929220 U CN209929220 U CN 209929220U
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Abstract
The utility model provides a single-phase permanent magnetic mechanism and vacuum circuit breaker, including setting gradually: the permanent magnet and the static iron core form an inner accommodating space together; the inside containing space is internally provided with: first elastic component, second elastic component, move iron core and permanent-magnet coil, first elastic component cover is established outside the second elastic component, it establishes to move the iron core cover outside the first elastic component, permanent-magnet coil cover is established move the iron core outside, first elastic component with the one end of second elastic component is connected first end cover, the other end is connected move the iron core. The utility model discloses spare part is few, and the installation is small, and motion tolerance is little, and response action time's dispersibility is little, can realize the accurate positioning of branch, combined floodgate moment voltage or electric current phase angle to realize closing in step.
Description
Technical Field
The utility model relates to an electrical components field specifically, relates to a single-phase permanent magnetic mechanism and vacuum circuit breaker.
Background
The patent with publication number CN108155076A discloses a permanent magnet mechanism, which comprises a stator magnetic yoke, a movable iron core, a driving rod and a permanent magnet, wherein the stator magnetic yoke comprises a shell, an upper end cover and a lower end cover; an upper coil, a first middle coil, a second middle coil, a lower coil, a first magnetic conductive ring and a second magnetic conductive ring are arranged in the shell; the movable iron core penetrates through the shell in a vertically-movable mode, and is at a first working position, a second working position and a third working position relative to the shell.
The conventional permanent magnet mechanism has more parts, large required installation volume and large movement tolerance, so that the corresponding action time has high dispersity, the action current of the conventional permanent magnet mechanism reaches up to 80A, and the opening time is more than 20 ms.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model aims at providing a single-phase permanent magnetic mechanism and vacuum circuit breaker.
According to the utility model provides a pair of single-phase permanent magnetic mechanism, including setting gradually: the permanent magnet motor comprises a first end cover 2, a yoke ring 3, a permanent magnet 4 and a static iron core 5, wherein the end cover 2, the yoke ring 3, the permanent magnet 4 and the static iron core 5 form an inner accommodating space together;
the inside containing space is internally provided with: first elastic component 7, second elastic component 8, move iron core 10 and permanent-magnet coil 9, first elastic component 7 cover is established outside second elastic component 8, it establishes to move iron core 10 cover outside first elastic component 7, permanent-magnet coil 9 covers is established move the iron core 10 outside, first elastic component 7 with the one end of second elastic component 8 is connected first end cover 2, and the other end is connected move iron core 10.
Preferably, the vacuum circuit breaker further comprises an insulating pull rod, wherein the insulating pull rod axially penetrates through the inner accommodating space, one end of the insulating pull rod is connected with a connecting rod of the vacuum circuit breaker, and the other end of the insulating pull rod penetrates through the movable iron core 10.
Preferably, the first elastic member 7 is a switching-off spring, and the second elastic member 8 is a contact spring.
Preferably, the magnetic suspension type magnetic suspension motor further comprises a second end cover 12 and a flange plate 1, wherein the second end cover 12 is arranged on the other side of the static iron core 5, the flange plate 1 is arranged on the other side of the first end cover 2, and the second end cover 12 is connected with the flange plate 1 through a fixing rod 6.
Preferably, the first elastic element 7 and the second elastic element 8 have a first distance therebetween.
Preferably, the movable iron core 10 is movable in the axial direction, and the stroke is greater than the distance between the fixed contact and the movable contact of the vacuum circuit breaker.
Preferably, a spacer 11 is disposed between the other end portions of the first elastic member 7 and the second elastic member 8 and the plunger 10.
Preferably, the permanent magnet 4 comprises a permanent magnet.
The invention provides a single-phase permanent magnet mechanism, which comprises the following components in sequence: the permanent magnet motor comprises a first end cover 2, a yoke ring 3, a permanent magnet 4 and a static iron core 5, wherein the end cover 2, the yoke ring 3, the permanent magnet 4 and the static iron core 5 form an inner accommodating space together;
the inside containing space is internally provided with: the magnetic resonance circuit comprises a first elastic part 7, a second elastic part 8, a movable iron core 10 and a permanent magnet coil 9, wherein the first elastic part 7 is sleeved outside the second elastic part 8, the movable iron core 10 is sleeved outside the first elastic part 7, the permanent magnet coil 9 is sleeved outside the movable iron core 10, one end of each of the first elastic part 7 and the second elastic part 8 is connected with the first end cover 2, and the other end of each of the first elastic part 7 and the second elastic part 8 is connected with the movable iron core 10;
the vacuum circuit breaker further comprises an insulating pull rod, wherein the insulating pull rod axially penetrates through the inner accommodating space, one end of the insulating pull rod is connected with a connecting rod of the vacuum circuit breaker, and the other end of the insulating pull rod penetrates through the movable iron core 10;
the first elastic piece 7 is a switching-off spring, and the second elastic piece 8 is a contact spring;
the magnetic core is characterized by further comprising a second end cover 12 and a flange plate 1, wherein the second end cover 12 is arranged on the other side of the static iron core 5, the flange plate 1 is arranged on the other side of the first end cover 2, and the second end cover 12 is connected with the flange plate 1 through a fixing rod;
the first elastic element 7 and the second elastic element 8 have a first distance therebetween;
the movable iron core 10 is movable in the axial direction, and the stroke is greater than the distance between a fixed contact and a movable contact of the vacuum circuit breaker;
a gasket 11 is arranged between the other ends of the first elastic piece 7 and the second elastic piece 8 and the movable iron core 10;
the permanent magnet 4 includes a permanent magnet.
The vacuum circuit breaker comprises the single-phase permanent magnet mechanism.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model has the advantages of few parts, small installation volume, small movement tolerance and small dispersion of response action time, and can realize accurate positioning of voltage or current phase angle at the time of switching on and off, thereby realizing synchronous closing;
2. the structure is compact, the parts are simple to process, the action current is only about 7A, the brake-separating time is less than 10ms, and the switch can be used as a quick switch.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the test results of the present invention;
FIG. 3 is a schematic diagram of the test results of the present invention;
in the figure:
1-a flange plate; 2-a first end cap; 3-a yoke ring; 4-permanent magnets; 5-static iron core 6-fixed rod; 7-a brake-separating spring; 8-a contact spring; 9-permanent magnet coils; 10-a movable iron core; 11-a gasket; 12-a second end cap; 13-a support.
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.
As shown in fig. 1, according to the utility model provides a single-phase permanent magnetic mechanism, including setting gradually: first end cover 2, yoke ring 3, permanent magnet 4 and quiet iron core 5, end cover 2, yoke ring 3, permanent magnet 4 and quiet iron core 5 form an inside accommodation space jointly. The first elastic member 7 is a switching-off spring, the second elastic member 8 is a contact spring, and a first distance is formed between the first elastic member 7 and the second elastic member 8. The movable iron core 10 can move in the axial direction, and the stroke is larger than the distance between a fixed contact and a movable contact of the vacuum circuit breaker.
The inner containing space is internally provided with: the magnetic iron core comprises a first elastic part 7, a second elastic part 8, a movable iron core 10 and a permanent magnet coil 9, wherein the first elastic part 7 is sleeved outside the second elastic part 8, the movable iron core 10 is sleeved outside the first elastic part 7, the permanent magnet coil 9 is sleeved outside the movable iron core 10, one end of the first elastic part 7 and one end of the second elastic part 8 are connected with a first end cover 2, and the other end of the first elastic part and the other end of the second elastic part are connected with the movable iron core 10.
The single-phase permanent magnet mechanism further comprises an insulating pull rod (not shown), the insulating pull rod axially penetrates through the inner accommodating space, one end of the insulating pull rod is connected with a connecting rod of the vacuum circuit breaker, and the other end of the insulating pull rod penetrates through the movable iron core 10. Still include second end cover 12 and ring flange 1, second end cover 12 sets up in the opposite side of quiet iron core 5, and ring flange 1 sets up in the opposite side of first end cover 2, and second end cover 12 passes through dead lever 6 and is connected with ring flange 1.
A spacer 11 is arranged between the other ends of the first elastic member 7 and the second elastic member 8 and the plunger 10. The permanent magnet 4 is a permanent magnet.
The utility model provides a single-phase permanent magnetic mechanism can be applied to vacuum circuit breaker.
The working principle of the utility model is as follows:
conventional operating mechanisms include spring operated mechanisms and electromagnetic operating mechanisms. The spring operating mechanism consists of a spring energy storage part, a closing keeping part and a switching-off part. The advantages are no need of large power supply, complex structure, complex manufacturing process, high cost and difficult guarantee of reliability. The electromagnetic operating mechanism has a simple structure, but the structure is heavy, and the power consumption of the closing coil is very high. On the basis of the advantages and the disadvantages of the two operating mechanisms, the permanent magnet mechanism is improved and designed. It is composed of permanent magnet, permanent-magnet coil, first elastic part, static iron core and first end cover
FIG. 1 is a cross-sectional view of a permanent magnet mechanism
When the circuit breaker is in the opening position, the movable iron core is positioned at the lower part, and the movable iron core tightly presses the movable iron core on the static iron core through the residual elasticity of the first elastic piece 7.
When the circuit breaker is to be switched on, the permanent magnet coil generates an induction magnetic field through switching-on current, the magnetic field generates upward attractive force to the movable iron core, the upward attractive force is changed from small to large along with the increase of the switching-on current, and when the switching-on current reaches a certain critical value, the resultant force direction borne by the movable iron core is upward and the movable iron core starts to move upward.
When the movable iron core reaches the first end cover, the magnetic field generated by the permanent magnet and the closing coil firmly adsorbs the movable iron core to the upper part. When the closing current disappears, the magnetic field generated by the permanent magnet keeps the movable iron core at the upper position. So far, the circuit breaker completes the closing operation.
Based on the same principle, when the permanent magnet coil obtains reverse opening current, the movable iron core moves downwards, and the permanent magnet and the first elastic piece keep the movable iron core at the opening position.
Through the test, the utility model discloses a data as follows:
as shown in fig. 2 and fig. 3, tests show that the closing time is about 30ms, the bounce is less than 2ms, the opening time is less than 10ms, and both the bounce and the opening time are less than 2ms, so that the mechanical characteristic parameter requirements of the recloser are completely met. The opening and closing current is only less than 7A, the opening and closing current is about 60A under the same voltage of the traditional permanent magnetic mechanism, and the energy required by the novel permanent magnetic mechanism is far less than that of the traditional permanent magnetic mechanism.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. The utility model provides a single-phase permanent magnetism mechanism which characterized in that, including setting gradually: the permanent magnet motor comprises a first end cover (2), a yoke ring (3), a permanent magnet (4) and a static iron core (5), wherein the end cover (2), the yoke ring (3), the permanent magnet (4) and the static iron core (5) jointly form an inner accommodating space;
the inside containing space is internally provided with: first elastic component (7), second elastic component (8), move iron core (10) and permanent magnetism coil (9), first elastic component (7) cover is established outside second elastic component (8), it establishes to move iron core (10) outside first elastic component (7), permanent magnetism coil (9) cover is established move iron core (10) outside, first elastic component (7) with the one end of second elastic component (8) is connected first end cover (2), the other end is connected move iron core (10).
2. The single-phase permanent-magnet mechanism according to claim 1, further comprising an insulating tie rod axially passing through the inner housing space, one end of the insulating tie rod being connected to a connecting rod of a vacuum circuit breaker, and the other end of the insulating tie rod passing through the movable iron core (10).
3. The single-phase permanent magnet mechanism according to claim 1, wherein the first elastic member (7) is a switching-off spring and the second elastic member (8) is a contact spring.
4. The single-phase permanent magnet mechanism according to claim 1, further comprising a second end cover (12) and a flange plate (1), wherein the second end cover (12) is disposed on the other side of the stationary core (5), the flange plate (1) is disposed on the other side of the first end cover (2), and the second end cover (12) is connected with the flange plate (1) through a fixing rod (6).
5. A single-phase permanent magnet mechanism according to claim 1, characterized in that the first spring (7) and the second spring (8) have a first distance therebetween.
6. Single-phase permanent-magnet mechanism according to claim 1, characterized in that the moving core (10) is axially movable with a travel greater than the distance between the stationary and the moving contact of the vacuum circuit breaker.
7. The single-phase permanent magnet mechanism according to claim 1, wherein a spacer (11) is provided between the other end portions of the first and second elastic members (7, 8) and the plunger (10).
8. Single-phase permanent-magnet machine according to claim 1, characterized in that the permanent magnet (4) comprises a permanent magnet.
9. The utility model provides a single-phase permanent magnetism mechanism which characterized in that, including setting gradually: the permanent magnet motor comprises a first end cover (2), a yoke ring (3), a permanent magnet (4) and a static iron core (5), wherein the end cover (2), the yoke ring (3), the permanent magnet (4) and the static iron core (5) jointly form an inner accommodating space;
the inside containing space is internally provided with: the magnetic force sensor comprises a first elastic piece (7), a second elastic piece (8), a movable iron core (10) and a permanent magnet coil (9), wherein the first elastic piece (7) is sleeved outside the second elastic piece (8), the movable iron core (10) is sleeved outside the first elastic piece (7), the permanent magnet coil (9) is sleeved outside the movable iron core (10), one end of the first elastic piece (7) and one end of the second elastic piece (8) are connected with a first end cover (2), and the other end of the first elastic piece (7) and the other end of the second elastic piece (8) are connected with the movable iron core (10);
the vacuum circuit breaker further comprises an insulating pull rod, wherein the insulating pull rod axially penetrates through the inner accommodating space, one end of the insulating pull rod is connected with a connecting rod of the vacuum circuit breaker, and the other end of the insulating pull rod penetrates through the movable iron core (10);
the first elastic piece (7) is a switching-off spring, and the second elastic piece (8) is a contact spring;
the magnetic core is characterized by further comprising a second end cover (12) and a flange plate (1), wherein the second end cover (12) is arranged on the other side of the static iron core (5), the flange plate (1) is arranged on the other side of the first end cover (2), and the second end cover (12) is connected with the flange plate (1) through a fixing rod (6);
the first elastic part (7) and the second elastic part (8) have a first distance therebetween;
the movable iron core (10) can move in the axial direction, and the stroke is greater than the distance between a fixed contact and a movable contact of the vacuum circuit breaker;
a gasket (11) is arranged between the other end parts of the first elastic piece (7) and the second elastic piece (8) and the movable iron core (10);
the permanent magnet (4) comprises a permanent magnet.
10. A vacuum circuit breaker, characterized in that it comprises a single-phase permanent-magnet mechanism according to any of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920792429.7U CN209929220U (en) | 2019-05-29 | 2019-05-29 | Single-phase permanent magnetic mechanism and vacuum circuit breaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920792429.7U CN209929220U (en) | 2019-05-29 | 2019-05-29 | Single-phase permanent magnetic mechanism and vacuum circuit breaker |
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| Publication Number | Publication Date |
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| CN209929220U true CN209929220U (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920792429.7U Active CN209929220U (en) | 2019-05-29 | 2019-05-29 | Single-phase permanent magnetic mechanism and vacuum circuit breaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116313580A (en) * | 2023-05-15 | 2023-06-23 | 深圳市国立智能电力科技有限公司 | Permanent magnet mechanism |
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2019
- 2019-05-29 CN CN201920792429.7U patent/CN209929220U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116313580A (en) * | 2023-05-15 | 2023-06-23 | 深圳市国立智能电力科技有限公司 | Permanent magnet mechanism |
| CN116313580B (en) * | 2023-05-15 | 2023-08-15 | 深圳市国立智能电力科技有限公司 | Permanent magnet mechanism |
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