CN211126780U - Switch module - Google Patents

Abstract

The utility model discloses a switch module, frame including the integral type, the frame includes front bezel, back plate, insulator mounting panel, contact mounting panel and circuit breaker mounting panel, insulator mounting panel and contact mounting panel set up between front bezel and the back plate, the circuit breaker mounting panel has two, divides the upper portion of establishing at front bezel and back plate, be equipped with circuit breaker switch between the circuit breaker mounting panel, circuit breaker switch's below is equipped with isolation earthing switch, circuit breaker switch and isolation earthing switch all fix in the frame. Through with circuit breaker switch and isolation earthing switch integration on the integral type frame, reduce the volume, when assembling switch module in the equipment box, need not to assemble each part one by one, only need assemble circuit breaker switch and isolation earthing switch on the frame, again with the frame installation can, be favorable to the factory stock and simplify the assembly flow.

Description

Switch module

Technical Field

The utility model relates to a looped netowrk cabinet technical field especially relates to a switch module.

Background

With the rapid development of national economy, the dependence degree of various industries on electric energy is higher and higher, so that the reliability requirement of users in the power industry on switch equipment is higher and higher. Under the background of the national advocated maintenance-free and miniaturization, the ring main unit with simple structure, miniaturization and reliable operation, especially the switch module inside the ring main unit, becomes a new research project which is disputed in the industry. Switch module among the prior art is bulky, the structure is heavy, need assemble the cabinet body with breaker switch and isolation earthing switch's part one, the assembly difficulty, and inside circuit breaker's operating device adopts spring operating device or permanent magnetism operating device more, spring operating device part is up to 200 surplus money, all need guarantee relative accurate position between every part, especially for the switch guarantees to close the position, the semi-axis of branch position, processing or assembly error are slightly big, then can cause the condition that the mechanism can not move, so there is higher instability in this type of mechanism, the fault incidence is high. The conventional permanent magnet mechanism generally uses a permanent magnet as a static iron core, reverse current is required to be applied to a coil in the switching-off process to generate a reverse magnetic field, the switching-off is carried out by relying on an over travel spring and a switching-off spring pushing mechanism after the switching-off, in the process, the reverse magnetic field can demagnetize the static iron core made of the permanent magnet, the Curie temperature of the permanent magnet is lower, when the ambient temperature rises, the demagnetization effect can be generated on the permanent magnet, and therefore the potential safety hazard exists in the permanent magnet mechanism by using the permanent magnet as the static iron core.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a switch module, it is small, the assembly is simple.

The utility model discloses a switch module, frame including the integral type, the frame includes front bezel, back plate, insulator mounting panel, contact mounting panel and circuit breaker mounting panel, insulator mounting panel and contact mounting panel set up between front bezel and the back plate, the circuit breaker mounting panel has two, divides the upper portion of establishing at front bezel and back plate, be equipped with circuit breaker switch between the circuit breaker mounting panel, circuit breaker switch's below is equipped with isolation earthing switch, circuit breaker switch and isolation earthing switch all fix in the frame.

According to the utility model discloses switch module has following beneficial effect at least: through with circuit breaker switch and isolation earthing switch integration on the integral type frame, reduce the volume, when assembling switch module in the equipment box, need not to assemble each part one by one, only need assemble circuit breaker switch and isolation earthing switch on the frame, again with the frame installation can, be favorable to the factory stock and simplify the assembly flow.

According to the utility model discloses a switch module, circuit breaker switch includes the base and sets up insulating cylinder on the base, be equipped with the cavity in the insulating cylinder, from last to having set gradually vacuum interrupter, insulating pull rod and permanent magnetism operating device down in the cavity, permanent magnetism operating device includes quiet iron core and moves the iron core, and sets up quiet iron core, move operating coil and the elastic component between the iron core, quiet iron core with move the iron core and all adopt the rectangular magnetic material to make.

According to the utility model discloses a switch module, the front bezel is equipped with a plurality of fixed switch module's mounting hole, first movive seal fixed orifices, second movive seal fixed orifices and ground connection but viewport.

According to the utility model discloses a switch module, the insulator mounting panel sets up one side of frame, the insulator mounting panel is fixed with insulating supporter, the contact mounting panel sets up the opposite side of frame.

According to the utility model discloses a switch module, be provided with the wiring row between circuit breaker switch and the isolation earthing switch, circuit breaker switch is connected to the upper end of wiring row, and isolation earthing switch is connected to the lower extreme, the middle part with the sub-hookup of insulating support.

According to the utility model discloses a switch module, the row upper end of working a telephone switchboard be equipped with bend the limit and with circuit breaker switch's leading-out terminal is connected, and the middle part is equipped with the fixed orifices, through fixed orifices and insulating support are fixed, the lower extreme be equipped with bend the limit and with it is fixed mutually to keep apart earthing switch.

According to the utility model discloses a switch module, keep apart earthing switch and include that ground connection row, ground contact, first isolation contact, second keep apart contact, isolation knife tackle spare, insulating boot, keep apart ground connection operation axle and insulating support, the ground connection is arranged and is set up on the contact mounting panel, ground contact sets up on the ground connection row, first isolation contact is installed the lower extreme of line bank, keep apart the ground connection operation axle and install on the frame, the insulating boot is installed keep apart on the ground connection operation axle and can wind and keep apart the rotation of ground connection operation axle, keep apart the knife tackle spare and be fixed in the insulating boot, insulating support is fixed in the bottom of frame, the second is kept apart the contact and is fixed in on the insulating support.

According to the utility model discloses a switch module of embodiment, ground contact, first isolation contact and second isolation contact interval set up on the circular arc that uses isolation ground connection operation axis as the centre of a circle.

According to the utility model discloses a switch module, insulating support includes curb plate, support bottom plate and median septum, the curb plate is divided and is established in support bottom plate both sides, curb plate and support bottom plate joggle, the median septum sets up support bottom plate just is located between two curb plates, median septum and two curb plate joggles.

According to the utility model discloses a switch module, switch module's width is less than or equal to 255 mm.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a switch module according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a side surface of a switch module in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a frame in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a permanent magnet operating mechanism in an embodiment of the present invention;

fig. 5 is a schematic structural view of an insulating support in an embodiment of the present invention;

fig. 6 is a diagram illustrating an operation state of the isolation knife assembly according to the embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1, 2 and 3, a switch module according to an embodiment of the present invention includes an integrated frame 100, where the frame 100 includes a front plate 101, a rear plate 102, an insulator mounting plate 103, a contact mounting plate 104 and a breaker mounting plate 109, the insulator mounting plate 103 and the contact mounting plate 104 are disposed between the front plate 101 and the rear plate 102, the breaker mounting plate 109 is disposed on the upper portions of the front plate 101 and the rear plate 102, a breaker switch 200 is disposed between the breaker mounting plates 109, a disconnecting ground switch 300 is disposed below the breaker switch 200, the breaker switch 200 and the disconnecting ground switch 300 are all fixed in the frame 100, and the front plate 101, the rear plate 102, the insulator mounting plate 103 and the contact mounting plate 104 are all made of high-strength steel with a thickness of 4 mm by laser cutting, numerical control bending, and numerical control drilling machine forming, the frame 100 is formed by laser welding, and plays roles of accurate positioning, rigidity supporting and the like for the switch module. Through integrating breaker switch 200 and isolation earthing switch 300 on integral type frame 100, reduce the volume, when assembling the switch module to the equipment box in, need not to assemble each part one by one, only need assemble breaker switch 200 and isolation earthing switch 300 on frame 100, again with frame 100 install can, reduce product assembly strength, shortened production man-hour.

Referring to fig. 2 and 4, the circuit breaker switch 200 includes a base 202 and an insulating cylinder 201 disposed on the base 202, a cavity is disposed in the insulating cylinder 201, and the cavity is sequentially disposed from top to bottomThe vacuum arc extinguishing chamber 2011, the insulating pull rod 2012 and the permanent magnet operating mechanism 2013 are arranged, the permanent magnet operating mechanism 2013 comprises a static iron core 3041, a movable iron core 3042, an operating coil 3043 and an elastic component 3044, wherein the operating coil 3043 and the elastic component 3044 are arranged between the static iron core 3041 and the movable iron core 3042, and the static iron core 3041 and the movable iron core 3042 are both made of rectangular magnetic materials. The elastic component 3044 may be a spring or an elastic rubber, and in this embodiment, it includes an over travel spring 30442 and a switch-off spring 30441, the over travel spring 30442 is disposed at an inner ring of the switch-off spring 30441, and the static iron core 3041 and the moving iron core 3042 are both made of a rectangular magnetic material, such as (Mn-Mg) Fe₂O₄System of (Mn-Cu) Fe₂O₄System of (Mn-Ni) Fe₂O₄The rectangular magnetic materials have the characteristics of no magnetism initially, low coercive force, high residual magnetism, high Curie temperature and the like, the movable iron core 3042 and the static iron core 3041 are in a non-magnetic state initially, a coil is electrified to generate a magnetic field in the switching-on process, the movable iron core 3041 and the static iron core 3041 are simultaneously magnetized, the movable iron core 3042 approaches the static iron core 3041 to complete the switching-on action, the overtravel spring 30442 and the switching-off spring 30441 are simultaneously compressed to store energy, reverse current is conducted to the coil in the switching-off process, and the movable iron core 3042 and the static iron core 3041 are demagnetized until the non-magnetic state, namely, the overtravel spring 30442 and the switching-off spring 30441 release the energy driving mechanism to switch off, and the circuit breaker switch 200 is compact in structure and simple to assemble as the magnetic materials for manufacturing the movable iron core 3042 and the static iron core 3041 have the characteristics of no magnetism, such as no magnetism, low coercive force, high; the power consumption is low, the reaction speed is high, the closing time is less than or equal to 25ms, and the opening time is less than or equal to 15 ms; the temperature of the mechanism enduring environment is more than or equal to 170 degrees, and the demagnetization and failure probability of the mechanism are extremely low.

Referring to fig. 1, the insulator mounting plate 103 is disposed at one side of the frame 100, the insulator mounting plate 103 is fixed with an insulating supporter 600, and the contact mounting plate 104 is disposed at the other side of the frame 100. The front plate 101 is provided with a plurality of mounting holes 105 for fixing the switch module, a first dynamic seal fixing hole 106, a second dynamic seal fixing hole 107 and a grounded view port 108, the first dynamic seal fixing hole 106 and the second dynamic seal fixing hole 107 are used for setting dynamic seals, and the grounded view port 108 can observe the state of the isolating switch. A wiring bar 400 is arranged between the circuit breaker switch 200 and the isolation grounding switch 300, the upper end of the wiring bar 400 is connected with the circuit breaker switch 200, the lower end is connected with the isolation grounding switch 300, and the middle part is connected with the insulation support 600. Wiring row 400 upper end be equipped with bend the limit and with breaker switch 200's leading-out terminal is connected, and the middle part is equipped with fixed orifices 401, through fixed orifices 401 and insulating support are fixed, the lower extreme be equipped with bend the limit and with keep apart earthing switch 300 and fix mutually, its fixed orifices 401 is the chamfer design, can hide fixing bolt in fixed orifices 401 effectively, and wiring row 400's outer circular arc design and fixed orifices 401 chamfer design have actual meaning to optimizing switch module's electric field branch and reducing switch module's size.

Further, the isolated ground switch 300 includes a ground row 301, a ground contact 302, a first isolated contact 304, a second isolated contact 305, an isolated blade assembly 306, an insulating cover 303, an isolated ground operating shaft 307 and an insulating support 500, wherein the ground row 301 is disposed on the contact mounting plate 104, the ground contact 302 is disposed on the ground row 301, the first isolated contact 304 is mounted at a lower end of the wiring row 400, the isolated ground operating shaft 307 is mounted on the frame 100 through a second dynamic seal fixing hole 107, the insulating cover 303 is mounted on the isolated ground operating shaft 307 and can rotate around the isolated ground operating shaft 307, the isolated blade assembly 306 is fixed in the insulating cover 303, the insulating support 500 is fixed at a bottom of the frame 100, and the second isolated contact 305 is fixed on the insulating support 500. The isolation grounding operating shaft 307 is a regular hexagonal shaft and is made of insulating materials through fine processing, and the insulating cover 303 is also formed by injection molding of the insulating materials, so that the high-potential isolation knife assembly 306 can be effectively isolated from grounding potential bodies such as the frame 100 and an operating mechanism, and the insulating strength is ensured. The isolated ground operation shaft 307 may also be a square or pentagonal shaft, etc. or a cylinder, which is easily conceivable by those skilled in the art to have a shape that facilitates rotation, and the cross section of the isolated ground operation shaft 307 is modified to correspond to a square hole provided in the insulating cover 303.

Referring to fig. 6, the ground contact 302, the first isolation contact 304 and the second isolation contact 305 are arranged at intervals on an arc centered on an isolated ground operating axis 307. In this embodiment, the ground contact 302, the first isolating contact 304 and the second isolating contact 305 are equidistantly arranged on an arc with the isolated ground operating shaft 307 as a center, the relative rotation angle between each two of the ground contact 302, the first isolating contact 304 and the second isolating contact 305 is 120 °, the isolated ground switch 300 is replaced with one position every time the isolated ground operating shaft 307 operates 60 °, when two ends of the isolating knife assembly 306 are respectively connected with the first isolating contact 304 and the second isolating contact 305, the switch is in an isolated closing state, when two ends of the isolating knife assembly 306 are not connected with any contact, the switch is in an isolated state, when two ends of the isolating knife assembly 306 are respectively connected with the ground contact 302 and the second isolating contact 305, the switch is in an isolated closing state, the isolated ground switch 300 adopts a double-break design, which is beneficial to increasing the switching speed, and the arc discharge time during the closing test of the grounding switch is effectively reduced, and the service life of the switch module is prolonged.

Referring to fig. 1 and 5, the insulating support 500 includes a side plate 501, a support bottom plate 502 and a middle partition 503, the side plate 501 is disposed on two sides of the support bottom plate 502, the side plate 501 is joggled with the support bottom plate 502, the middle partition 503 is disposed on the support bottom plate 502 and located between the two side plates 501, and the middle partition 503 is joggled with the two side plates 501. The switch module is formed by splicing through a mortise and tenon process without standard part connection, the possibility of electric breakdown is reduced from the source, the complete machine partial discharge of the switch module is controlled, in addition, the left side plate 501 and the right side plate 501 are axisymmetric parts, the types of the parts of the switch module are effectively reduced, and the storage strength and the assembly strength are favorably reduced.

The utility model discloses a switch module of embodiment has adopted and has assembled circuit breaker switch 200 and isolation earthing switch 300 to the design that frame 100 formed whole module to and circuit breaker switch 200 adopts the less, the few permanent magnetism operating device 2013 of part of volume, and moving, quiet iron core 3041 of permanent magnetism operating device 2013 adopts the rectangular magnetic material, and mechanism's demagnetization, probability of failure are extremely low. This embodiment is rationally distributed, makes the switch module width be less than or equal to 255mm reduced the product size, has huge effect to reducing the whole volume of looped netowrk cabinet.

Claims (10)

1. A switch module, characterized by: frame (100) including the integral type, frame (100) include front bezel (101), back plate (102), insulator mounting panel (103), contact mounting panel (104) and circuit breaker mounting panel (109), insulator mounting panel (103) and contact mounting panel (104) set up between front bezel (101) and back plate (102), circuit breaker mounting panel (109) have two, divide the upper portion of establishing at front bezel (101) and back plate (102), be equipped with circuit breaker switch (200) between circuit breaker mounting panel (109), the below of circuit breaker switch (200) is equipped with isolation earthing switch (300), circuit breaker switch (200) and isolation earthing switch (300) are all fixed in frame (100).

2. A switch module according to claim 1, characterized in that: the circuit breaker switch (200) comprises a base (202) and an insulating cylinder (201) arranged on the base (202), a cavity is arranged in the insulating cylinder (201), a vacuum arc extinguish chamber (2011), an insulating pull rod (2012) and a permanent magnet operating mechanism (2013) are sequentially arranged in the cavity from top to bottom, the permanent magnet operating mechanism (2013) comprises a static iron core (3041) and a movable iron core (3042) which are made of a rectangular magnetic material, and an operating coil (3043) and an elastic component (3044) which are arranged between the static iron core (3041) and the movable iron core (3042).

3. A switch module according to claim 1, characterized in that: the front plate (101) is provided with a mounting hole (105), a first dynamic seal fixing hole (106), a second dynamic seal fixing hole (107) and a grounding view port (108).

4. A switch module according to claim 1, characterized in that: insulator mounting panel (103) set up one side of frame (100), insulator mounting panel (103) are fixed with insulating supporter (600), contact mounting panel (104) set up the opposite side of frame (100).

5. A switch module according to claim 4, characterized in that: be provided with between circuit breaker switch (200) and isolation earthing switch (300) line bank (400), circuit breaker switch (200) is connected to the upper end of line bank (400), and isolation earthing switch (300) is connected to the lower extreme, the middle part with insulating supporter (600) hookup.

6. A switch module according to claim 5, characterized in that: wiring row (400) upper end be equipped with bend the limit and with the leading-out terminal of circuit breaker switch (200) is connected, and the middle part is equipped with fixed orifices (401), through fixed orifices (401) are fixed with insulating support (600), the lower extreme be equipped with bend the limit and with it is fixed mutually to keep apart earthing switch (300).

7. A switch module according to claim 5, characterized in that: the isolation grounding switch (300) comprises a grounding bar (301), a grounding contact (302), a first isolation contact (304), a second isolation contact (305), an isolation knife assembly (306), an insulation cover (303), an isolation grounding operation shaft (307) and an insulation support (500), wherein the grounding bar (301) is arranged on the contact mounting plate (104), the grounding contact (302) is arranged on the grounding bar (301), the first isolation contact (304) is arranged at the lower end of the wiring bar (400), the isolation grounding operation shaft (307) is arranged on the frame (100), the insulation cover (303) is arranged on the isolation grounding operation shaft (307) and can rotate around the isolation grounding operation shaft (307), the isolation knife assembly (306) is fixed in the insulation cover (303), and the insulation support (500) is fixed at the bottom of the frame (100), the second isolation contact (305) is fixed on the insulating support (500).

8. A switch module according to claim 7, characterized in that: the grounding contact (302), the first isolation contact (304) and the second isolation contact (305) are arranged on an arc with an isolation grounding operation shaft (307) as a center at intervals.

9. A switch module according to claim 7 or 8, characterized in that: insulating support (500) include curb plate (501), support bottom plate (502) and median septum (503), curb plate (501) are established respectively in support bottom plate (502) both sides, curb plate (501) and support bottom plate (502) joggle, median septum (503) set up support bottom plate (502) and lie in between two curb plates (501), median septum (503) and two curb plates (501) joggle.

10. A switch module according to claim 1 or 2, characterized in that: the width of the switch module is less than or equal to 255 mm.

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