CN216412926U - Novel isolating switch - Google Patents
Novel isolating switch Download PDFInfo
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- CN216412926U CN216412926U CN202121445831.1U CN202121445831U CN216412926U CN 216412926 U CN216412926 U CN 216412926U CN 202121445831 U CN202121445831 U CN 202121445831U CN 216412926 U CN216412926 U CN 216412926U
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- movable contact
- isolating switch
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- permanent magnet
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Abstract
The utility model discloses a novel isolating switch, which comprises a shell cover and a multilayer shell arranged at the bottom of the shell cover, wherein the multilayer shell divides the interior of the device into a multilayer installation cavity, a knob, a handle in transmission connection with the knob, a driving disk, an energy storage mechanism, a first pressure plate and a movable contact plate are arranged in the multilayer installation cavity from top to bottom, the outer edge of the movable contact plate is provided with a plurality of movable contacts, the shell is provided with a plurality of static contacts in contact with the movable contact plate, the driving disk rotates along with the handle and drives the first pressure plate to rotate behind the driving disk.
Description
Technical Field
The utility model relates to the field of switches, in particular to a novel isolating switch.
Background
With the development of a direct current system and the reduction of cost, the direct current system with higher voltage and current is developed, but a matched technical scheme of an isolating switch is not provided, so that the novel isolating switch is a new development of the background of the technical field.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the technical scheme provided by the utility model is as follows: a novel isolating switch comprises a shell cover and a multilayer shell arranged at the bottom of the shell cover, wherein the multilayer shell divides the interior of the device into a multilayer installation cavity, a knob, a handle in transmission connection with the knob, a driving disc, an energy storage mechanism, a pressure plate and a movable contact disc are arranged in the multilayer installation cavity from top to bottom, a plurality of movable contacts are arranged on the outer edge of the movable contact disc, a plurality of static contacts in contact with the shell are arranged on the shell, the driving disc rotates along with the handle, and the action rod drives the pressure plate to rotate behind the driving disc; the movable contact device is characterized in that a plurality of arc blocking rods are arranged on the outer side of the movable contact disc, the arc blocking rods are perpendicular to the extension direction of electric arcs, a pressure spring is arranged at the bottom of each arc blocking rod, the top of each arc blocking rod extends to the lower portion of the corresponding driving disc, limiting grooves corresponding to the arc blocking rods are circumferentially arranged at the bottom of the corresponding driving disc, and baffles for blocking channels between the movable contacts and the static contacts are arranged on one sides of the arc blocking rods facing the movable contact disc.
The utility model also discloses another novel isolating switch, wherein the shell is provided with a conductive cavity, the movable contact disc is placed in the conductive cavity, hole grooves are formed in the path of the electric arc passing through the two sides of the conductive cavity, permanent magnets are arranged in the hole grooves, arc grooves are formed in the two sides of the permanent magnets, and groove areas are formed in the outer side of the movable contact disc along the path of the arc grooves.
Preferably, the limiting groove is along the direction of rotation of the driving disc, the front end of the limiting groove is a vertical section, and the rear surface of the limiting groove is an arc-shaped connecting surface.
Preferably, the fixed contacts include a first fixed contact and a second fixed contact, which are respectively disposed on two sides of the conductive cavity, and the first fixed contact extends out of the switch housing.
Preferably, the two groups of permanent magnets are symmetrically arranged on two sides in the electric conduction cavity and connected in series along the extension direction of the electric arc, and each group of permanent magnets comprises one or more permanent magnet blocks.
Preferably, the two groups of permanent magnets are symmetrically arranged on two sides in the electric conduction cavity and are parallel to each other along the extension direction of the electric arc, and each group of permanent magnets comprises one or more permanent magnet blocks.
Preferably, the arc groove comprises an inner arc groove and an outer arc groove, the inner arc groove is arranged along the inner side edge of the permanent magnet, and the outer arc groove is arranged along the outer side edge of the permanent magnet.
Preferably, the movable contact disc covers any one or two of the inner arc groove area and the outer arc groove area to form a shielding structure or a progressive shielding structure.
After the scheme is adopted, the utility model has the following advantages: the utility model can effectively improve the dissociating capacity of the switch and extinguish electric arcs, is suitable for the breaking of higher voltage and current, improves the breaking performance of the isolating switch, and further develops and innovates the adjacent industry.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic diagram of the external structure of a novel isolating switch of the utility model.
Fig. 2 is a schematic diagram of the internal structure of a novel isolating switch of the utility model.
Fig. 3 is a first structural schematic diagram of a novel disconnecting switch of the utility model.
Fig. 4 is a structural schematic diagram of a novel disconnecting switch of the utility model.
Fig. 5 is a first structural schematic diagram of a closing of the novel isolating switch of the utility model.
Fig. 6 is a second schematic structural diagram of a closing of the novel isolating switch of the utility model.
Fig. 7 is a schematic upper structure diagram of a movable contact disc in the novel isolating switch.
Fig. 8 is a schematic diagram of the lower structure of a movable contact disc in the novel isolating switch.
Fig. 9 is a schematic cross-sectional structure diagram of a movable contact disc in the novel isolating switch of the utility model.
Fig. 10 is a schematic structural diagram of a movable contact disc in the novel isolating switch.
Fig. 11 is a schematic structural diagram of an arc groove in the novel isolating switch.
Fig. 12 is a first schematic view of an arc chute shielding structure in the novel isolating switch.
Fig. 13 is a schematic diagram ii of an arc chute shielding structure in the novel isolating switch of the utility model.
Fig. 14 is a third schematic diagram of the arc chute shielding structure in the novel isolating switch of the utility model.
Fig. 15 is a schematic diagram of a top view of the lorentz force of a novel isolator switch of the present invention.
Fig. 16 is a first schematic diagram of the lorentz force when the N-pole is placed towards the arc in a novel isolator switch of the present invention.
FIG. 17 is a second schematic diagram of the Lorentz force with the N-pole facing the arc in a novel isolator switch of the present invention.
FIG. 18 is a schematic diagram of the Lorentz forces of a novel isolator switch of the present invention with the N-S plane oriented in the direction of the arc.
In the figure: 1. the shell cover comprises a shell cover, 2, a multilayer shell, 3, a knob, 4, a handle, 5, a driving disk, 6, a first pressure plate, 7, a movable contact disk, 8, a movable contact, 9, a static contact, 9.1, a first static contact, 9.2, a second static contact, 10, an arc blocking rod 11, a pressure spring, 12, a limiting groove, 13, a conductive cavity, 14, a hole groove, 15, a permanent magnet, 16, an arc groove, 16.1, an inner arc groove, 16.2, an outer arc groove, 17, a groove area, 18, a baffle, 19 and an action rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an orientation or a positional relationship based on the orientation or the positional relationship shown in the drawings, or an orientation or a positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience and simplicity, and the indication or the suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, the present invention should not be construed as being limited. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, "a plurality" represents at least 2.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example one
A novel isolating switch comprises a shell cover 1 and a multilayer shell 2 arranged at the bottom of the shell cover 1, wherein the multilayer shell 2 divides the interior of the device into a multilayer installation cavity, a knob 3, a handle 4 in transmission connection with the knob 3, a driving disk 5, a first pressure plate 6 and a movable contact disk 7 are arranged in the multilayer installation cavity from top to bottom, a plurality of movable contacts 8 are arranged on the outer edge of the movable contact disk 7, a plurality of static contacts 9 in contact with the shell are arranged on the shell, the driving disk 5 rotates along with the handle 3, and the driving disk 5 drives the first pressure plate 6 to rotate behind the driving disk 5 through an action rod 19;
a plurality of arc blocking rods 10 are arranged on the outer side of the movable contact disc 7, the arc blocking rods 10 are perpendicular to the extending direction of the electric arc, a pressure spring 11 is arranged at the bottom of each arc blocking rod 10, the top of each arc blocking rod extends to the lower part of the driving disc 5, a limiting groove 12 corresponding to each arc blocking rod 10 is circumferentially arranged at the bottom of the driving disc 5, and a baffle 18 for blocking a channel between the movable contact 8 and the static contact 9 is arranged on one side of each arc blocking rod 10 facing the movable contact disc 7;
as a preferred embodiment of this embodiment, the limiting groove 12 is along the rotation direction of the driving disc 5, and has a vertical cross section at the front end and an arc-shaped connecting surface at the back end.
As a preferred embodiment of this embodiment, the fixed contact 9 includes a first fixed contact 9.1 and a second fixed contact 9.2, which are respectively disposed on two sides of the conductive cavity, and the first fixed contact 9.1 extends out of the switch housing.
Example two
The utility model provides a novel isolating switch, casing 1 is equipped with electrically conductive chamber 13, movable contact disc 7 is placed in electrically conductive chamber 13, electrically conductive chamber both sides set up cave groove 14 on electric arc process route, set up permanent magnet 15 in the cave groove 14, 15 both sides of permanent magnet set up arc groove 16, movable contact disc 7 outside is equipped with groove 17 along 16 routes in arc groove, movable contact disc covers the open region in arc groove, makes the arc groove form semi-closed cavity at the switching action in-process.
It should be noted that the arc blocking rod structure in the first embodiment and the arc chute structure in the second embodiment may respectively act on arc extinction, and of course, the two structures may be overlapped according to actual situations.
In a preferred embodiment of this embodiment, the permanent magnets 15 are provided in two groups, which are symmetrically disposed on two sides inside the conducting cavity 13, and are connected in series along the extending direction of the arc, and each group of permanent magnets 15 includes one or more permanent magnet blocks.
As a preferred embodiment of this embodiment, the permanent magnets 15 are two groups, which are symmetrically disposed on two sides inside the conducting cavity 13, and are parallel along the extending direction of the arc, and each group of permanent magnets 15 includes one or more permanent magnet blocks.
As a preferred embodiment of this embodiment, the arc slot 16 includes an inner arc slot 16.1 and an outer arc slot 16.2, the inner arc slot 16.1 is disposed along an inner side of the permanent magnet 15, and the outer arc slot 16.2 is disposed along an outer side of the permanent magnet 15.
In this embodiment, the movable contact spring is provided with a portion for shielding the arc groove, and different coincidence proportions are set in the extension length of the arc groove, specifically:
with reference to fig. 12, a groove area is arranged outside the movable contact spring, and covers the inner arc groove area, but does not cover the whole length of the groove area, so as to form a shielding structure/progressive shielding structure;
with reference to fig. 13, a groove area is disposed outside the moving contact plate, and covers the inner arc groove area, but does not cover the entire width, and the widths are different in the extension length to form another shielding structure/progressive shielding structure;
with reference to fig. 14, the movable contact disk is provided with a groove area between the inner arc groove area and the outer arc groove area, so that the movable contact disk covers the inner arc groove area and the outer arc groove area simultaneously to form another shielding structure/progressive shielding structure.
In this embodiment, the relevant dimensions of the arc chute are preferably set as: the distance between the arc groove 16 and the permanent magnet 15 is 0-9mm, and an insulator is arranged in the middle of the arc groove; the depth of the arc groove 16 is 50% of the thickness of the magnet, and the width of the arc groove 16 is 9% -400% of the depth.
The forced arc extinguishing principle of the utility model is as follows: firstly, a driving disc rotates along with a handle, a pressure plate rotates along with an action rod, and the driving disc rotates before the pressure plate;
when in the opening state: the driving disc and the pressure plate have no limit function on the arc blocking rod, and under the action of a pressure spring force, the arc blocking rod is upwards pushed to a limit surface along the parallel direction of the action rod to block a channel between the movable contact and the static contact;
the operation process from opening to closing is as follows: the driving disc rotates 70 degrees to 75 degrees along with the handle, the arc blocking rod is pressed downwards to the lowest point limiting surface along the parallel direction of the action rod, the pressure spring is in a compressed state, and at the moment, a movement channel between the movable contact and the static contact has no obstacle; the handle is continuously rotated, and under the action of the mechanism, the moving contact rotates to the fixed contact to realize contact, so that a closing state is achieved;
the motion process from closing to opening: the driving disc rotates 70 degrees to 75 degrees along with the handle, the driving disc exits from the limit of the arc blocking rod, the pressure plate limits the arc blocking rod at the moment, the arc blocking rod is still at the lowest point, and the pressure spring is still in a compressed state; the handle is continuously rotated, the pressure plate withdraws from the limit of the arc blocking rod under the action of the action rod, and the arc blocking rod is pushed upwards to the limit surface under the action of the reset force of the pressure spring to block a channel between the movable contact and the static contact;
the utility model is through the arrangement of body, permanent magnet, static contact, moving contact and acting as the guard plate, a new kind of new type that can be sufficient together forces the arc extinguishing and arc extinguishing arc groove structure, body and moving contact form the arc groove structure, deflect the electric arc to the arc groove through the permanent magnet, make the electric arc deflect enter the arc groove under the influence of lorentz force (see figure 15), form the slit effect, and the moving contact disk shields the part of the arc groove and then further promotes the effect of the slit effect, lorentz force further squeezes the electric arc to the direction of permanent magnet at the same time, in addition, figure 16, 17 is the schematic diagram of lorentz force when the N pole is set towards the electric arc of the utility model, this figure is the tangent plane of the switch layer, the arrow represents the direction of lorentz force; FIG. 18 is a schematic diagram of the Lorentz forces of the present invention with the N-S plane oriented in the direction of the arc, in this manner of use, only a single current direction is effective, but the effect is better;
the forced arc extinguishing structure has the following functions: when the moving contact is separated from the static contact, the driving disc and the pressure plate exit from the limit of the arc blocking rod, the arc blocking rod bounces under the action of the spring, the baffle 18 is driven to block the electric arc between the moving contact and the static contact, and therefore the electric arc is extinguished and the breaking performance of the switch is improved.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (8)
1. A novel isolating switch is characterized by comprising a shell cover and a multilayer shell arranged at the bottom of the shell cover, wherein the multilayer shell divides the interior of the device into a multilayer installation cavity, a knob, a handle in transmission connection with the knob, a driving disk, an energy storage mechanism, a pressure plate and a movable contact plate are arranged in the multilayer installation cavity from top to bottom, a plurality of movable contacts are arranged on the outer edge of the movable contact plate, a plurality of fixed contacts in contact with the shell are arranged on the shell, the driving disk rotates along with the handle, and the pressure plate is driven by an action rod to rotate behind the driving disk; the movable contact device is characterized in that a plurality of arc blocking rods are arranged on the outer side of the movable contact disc, the arc blocking rods are perpendicular to the extension direction of electric arcs, a pressure spring is arranged at the bottom of each arc blocking rod, the top of each arc blocking rod extends to the lower portion of the corresponding driving disc, limiting grooves corresponding to the arc blocking rods are circumferentially arranged at the bottom of the corresponding driving disc, and baffles for blocking channels between the movable contacts and the static contacts are arranged on one sides of the arc blocking rods facing the movable contact disc.
2. The novel isolating switch as claimed in claim 1, wherein the limiting groove has a vertical cross section at the front end and an arc-shaped connecting surface at the rear end along the rotation direction of the driving disk.
3. The novel isolating switch as claimed in claim 1, wherein the fixed contact includes a first fixed contact and a second fixed contact respectively disposed at two sides of the conductive cavity, and the first fixed contact extends out of the switch housing.
4. The utility model provides a novel isolating switch, its characterized in that, the casing is equipped with electrically conductive chamber, and the movable contact spring dish is placed in electrically conductive intracavity, electrically conductive chamber both sides set up the cave groove on electric arc process route, the cave inslot sets up the permanent magnet, the permanent magnet both sides set up the arc groove, the movable contact spring dish outside is equipped with the groove district along arc groove route.
5. The novel isolating switch as claimed in claim 4, wherein the permanent magnets are arranged in two groups symmetrically at two sides of the interior of the conducting cavity, and are connected in series along the arc extending direction, and each group of permanent magnets comprises one or more permanent magnet blocks.
6. The novel isolating switch as claimed in claim 4, wherein the permanent magnets are arranged in two groups symmetrically at two sides of the interior of the conducting cavity, parallel to the arc extension direction, each group of permanent magnets comprising one or more permanent magnet blocks.
7. The novel isolating switch of claim 4, wherein the arc slots comprise an inner arc slot and an outer arc slot, the inner arc slot is disposed along an inner side of the permanent magnet, and the outer arc slot is disposed along an outer side of the permanent magnet.
8. The novel isolating switch according to claim 4, wherein the movable contact plate covers either or both of the inner arc groove area and the outer arc groove area to form a shielding structure or a progressive shielding structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121445831.1U CN216412926U (en) | 2021-06-28 | 2021-06-28 | Novel isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121445831.1U CN216412926U (en) | 2021-06-28 | 2021-06-28 | Novel isolating switch |
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| Publication Number | Publication Date |
|---|---|
| CN216412926U true CN216412926U (en) | 2022-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121445831.1U Active CN216412926U (en) | 2021-06-28 | 2021-06-28 | Novel isolating switch |
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| CN (1) | CN216412926U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023274174A1 (en) * | 2021-06-28 | 2023-01-05 | 北京光华世通科技有限公司 | Electrical isolation switch and switching layer thereof, and multi-switching-layer assembly and arc extinguishing method |
-
2021
- 2021-06-28 CN CN202121445831.1U patent/CN216412926U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023274174A1 (en) * | 2021-06-28 | 2023-01-05 | 北京光华世通科技有限公司 | Electrical isolation switch and switching layer thereof, and multi-switching-layer assembly and arc extinguishing method |
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