CN220324399U

CN220324399U - Fuse double-column structure for wind power (photovoltaic)

Info

Publication number: CN220324399U
Application number: CN202322035504.4U
Authority: CN
Inventors: 曾立新; 王全安; 贾军红
Original assignee: Xi'an Steady Fuse Co ltd
Current assignee: Xi'an Steady Fuse Co ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2024-01-09
Anticipated expiration: 2033-07-31

Abstract

The utility model relates to the technical field of fuses, in particular to a double-column structure of a fuse for wind power (photovoltaic), which comprises the following components: a wiring mechanism; the wiring mechanism comprises a U-shaped wiring terminal, two sealing gaskets are sleeved on the surface of the U-shaped wiring terminal, two nuts which are in contact with the adjacent sealing gaskets are connected with the surface of the U-shaped wiring terminal in a threaded manner, and a positioning mechanism which is clamped with the other nut is clamped on the outer surface of one nut; through setting up positioning mechanism, after interior hexagonal ring frame nut joint, even the nut vibration, positioning mechanism can hold down two nuts simultaneously this moment for can prevent nut not hard up or drop for wire connector and plug-in fuse can zonulae occludens, has reduced the probability of contact failure between wire connector and the plug-in fuse, and then reaches the effect of guarantee plug-in fuse normal operating.

Description

Fuse double-column structure for wind power (photovoltaic)

Technical Field

The utility model relates to the technical field of fuses, in particular to a double-column structure of a fuse for wind power (photovoltaic).

Background

The plug-in fuse is an indispensable safety protection device in a wind power or photovoltaic power generation device, is arranged on the high-voltage side in the combined transformer oil tank and between the backup fuse and a high-voltage winding lead, has the characteristic of being capable of being pulled out for replacement, and has the main function of protecting the short circuit fault and the overcurrent of the secondary side of the transformer. Plug-in fuses are one of the most common applications.

Because current plug-in fuse and circuit adopt threaded connection spare (threaded connection spare here mostly screw terminal cooperation nut) to be connected more, and the inside alternating magnetic flux of transformer when the operation can arouse the iron core vibration, these vibrations can inevitably be transmitted for the threaded connection spare of plug-in fuse and circuit, this frictional force that can make between the threaded connection spare reduces, however if threaded connection spare frictional force is not enough, threaded connection spare just becomes flexible easily, this can undoubtedly plug-in fuse and circuit connection's steadiness, easily causes the trouble of contact failure, exists great potential safety hazard.

Disclosure of Invention

The utility model aims to solve the problems and provide a double-column structure of a fuse for wind power (photovoltaic), which solves the problems that the existing connecting structure for the plug-in fuse is easy to loosen in the long-time operation process and is easy to cause poor contact faults of devices.

A fuse double-column structure for wind power (photovoltaic), comprising: a wiring mechanism; the wiring mechanism comprises a U-shaped wiring terminal, two sealing gaskets are sleeved on the surface of the U-shaped wiring terminal, two nuts which are in contact with the sealing gaskets respectively are connected with the surface of the U-shaped wiring terminal in a threaded mode, and one of the nuts is clamped with a positioning mechanism which is clamped with the other nut.

Preferably, the positioning mechanism comprises a mounting plate, two round holes are formed in one end of the mounting plate, two nuts are respectively arranged in the two round holes, the inner wall of each round hole is clamped with an inner hexagonal ring frame which is clamped with the adjacent nut, and the positioning mechanism is arranged after the nuts are clamped with the inner hexagonal ring frame, so that the positioning mechanism can simultaneously hold the two nuts, and can prevent the nuts from loosening or falling off, so that a wire connector and the plug-in fuse can be tightly connected, the probability of poor contact between the wire connector and the plug-in fuse is reduced, and the effect of guaranteeing normal operation of the plug-in fuse is further achieved.

Preferably, two ring grooves which are respectively communicated with the adjacent round holes are formed in two ends of the mounting plate, and a positioning ring fixedly connected with the inner hexagonal ring frame is rotationally connected to the inner wall of the ring groove, so that the inner hexagonal ring frame can be firmly limited on the inner side of the round holes, and the probability of detachment of the inner hexagonal ring frame is reduced.

Preferably, the constant head tank that is annular distribution has been seted up to the inner wall of round hole, the mounting groove has been seted up to the surface of interior hexagonal ring frame, the inner wall sliding connection of mounting groove has the installation piece, the one end fixedly connected with locating piece of installation piece, the other end of locating piece runs through the mounting groove and with adjacent the constant head tank joint, this can make the staff adjust interior hexagonal ring frame to corresponding angle according to the actual angle of nut for this positioning mechanism can adapt to the nut of different mounted positions.

Preferably, the positioning groove and the clamping parts of the positioning block and the positioning groove are right-angled triangles which are matched, and the mutual dragging direction of the positioning groove and the positioning block is opposite to the rotating moving direction of the nut to the sealing gasket, so that the inner hexagonal ring frame is limited to rotate only when the rotating direction of the nut to the sealing gasket is the same, and the positioning groove can prevent the nut from loosening through the positioning block and the inner hexagonal ring frame.

Preferably, the spring has been placed to the inner wall of mounting groove, the both ends of spring contact with mounting groove and installation piece respectively, the spring is in by compression state all the time, when the constant head tank aligns with the locating piece, the spring can reset the locating piece fast to make locating piece and constant head tank joint be in the same place, need not the manual reset of staff in order to reach good effect of resetting certainly.

Preferably, the joint groove that is annular distribution has been seted up to the surface of nut, the interior surface fixedly connected with of interior hexagonal ring frame is annular distribution's joint piece, the joint piece with adjacent the joint groove looks joint, the joint piece is rubber material component, and this can increase the connection compactness between interior hexagonal ring frame and the nut for positioning mechanism overall operation is more stable.

The beneficial effects of the utility model are as follows:

1. through setting up positioning mechanism, even the nut vibration after the nut joint of interior hexagonal ring frame, positioning mechanism can hold down two nuts simultaneously this moment, and this can prevent nut loosening or drop for wire connector and plug-in fuse can close connection, has reduced the probability of contact failure between wire connector and the plug-in fuse, and then reaches the effect of guaranteeing the normal operating of plug-in fuse;

2. through the cooperation of constant head tank and locating piece, this can make the staff adjust interior hexagonal ring frame to corresponding angle according to the actual angle of nut for this positioning mechanism can adapt to the nut of different mounted positions, and adopts constant head tank and the locating piece of one-way shape design, this limit interior hexagonal ring frame can only rotate along the nut to the same time of the rotation direction of sealed pad, can prevent the nut not hard up through locating piece and interior hexagonal ring frame with the guarantee constant head tank.

Drawings

FIG. 1 is a schematic illustration of the connection of an access fuse and wire connector to a wiring mechanism in accordance with the present utility model;

FIG. 2 is a schematic diagram of a wiring mechanism according to the present utility model;

FIG. 3 is a schematic view of a wiring mechanism of the present utility model in a vertical cross-section;

FIG. 4 is a schematic cross-sectional view of the wiring mechanism of the present utility model in a horizontal direction;

fig. 5 is an enlarged view of a in fig. 4.

In the figure: 1. a wiring mechanism; 2. u-shaped binding posts; 3. a sealing gasket; 4. a nut; 401. a clamping groove; 5. a positioning mechanism; 501. a mounting plate; 502. a round hole; 503. an inner hexagonal ring frame; 504. a ring groove; 505. a positioning ring; 506. a positioning groove; 507. a mounting groove; 508. a mounting block; 509. a positioning block; 510. a spring; 511. and a clamping block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The specific implementation method comprises the following steps: as shown in fig. 1 to 5, a fuse double-pole structure for wind power (photovoltaic) includes: a wiring mechanism 1; the wiring mechanism 1 comprises a U-shaped wiring terminal 2, two sealing gaskets 3 are sleeved on the surface of the U-shaped wiring terminal 2, two nuts 4 which are in contact with the adjacent sealing gaskets 3 respectively are connected to the surface of the U-shaped wiring terminal 2 in a threaded manner, a positioning mechanism 5{U type wiring terminal 2 which is clamped with the other nut 4 is clamped on the outer surface of one nut 4, and the surface of the plug-in fuse needs to be embedded and installed in the production process of the plug-in fuse; by adopting the double wiring design, compared with the existing single wiring design, the contact surface is doubled, the contact resistance is reduced, and the heating condition is effectively improved; the sealing gasket 3 is made of fluororubber material, and compared with the design of adopting nitrile-butadiene material, the sealing gasket 3 has better temperature resistance, is not easy to age and deform after high temperature, further reduces the probability of bolt loosening, and can provide enough fine tuning space for the nut 4, so that the operator can adjust the angle of the nut 4 to be matched with the angle of the inner hexagonal ring frame 503.

As shown in fig. 3, 4 and 5, the positioning mechanism 5 comprises a mounting plate 501, one end of the mounting plate 501 is provided with two round holes 502, two nuts 4 are respectively arranged in the two round holes 502, and an inner hexagonal ring frame 503 clamped with the adjacent nuts 4 is clamped on the inner wall of the round hole 502; two ring grooves 504 which are respectively communicated with the adjacent round holes 502 are formed at two ends of the mounting plate 501, and a positioning ring 505 fixedly connected with the inner hexagonal ring frame 503 is rotationally connected to the inner wall of the ring groove 504; positioning grooves 506 distributed annularly are formed in the inner wall of the round hole 502, mounting grooves 507 are formed in the outer surface of the inner hexagonal ring frame 503, mounting blocks 508 are slidably connected to the inner wall of the mounting grooves 507, positioning blocks 509 are fixedly connected to one ends of the mounting blocks 508, and the other ends of the positioning blocks 509 penetrate through the mounting grooves 507 and are clamped with the adjacent positioning grooves 506; the positioning groove 506 and the clamping parts of the positioning block 509 and the positioning groove 506 are right-angled triangles which are matched, the mutual dragging direction of the positioning groove 506 and the positioning block 509 is opposite to the rotating moving direction of the nut 4 to the sealing gasket 3 { at the moment, a worker needs to rotate the nut 4 clockwise, and the nut 4 can move downwards along the surface of the U-shaped binding post 2 in a spiral manner; the staff rotates the inner hexagonal ring frame 503 clockwise according to the angle of the nut 4 at the moment, the inner hexagonal ring frame 503 drives the installation block 508 to rotate clockwise through the installation groove 507, the installation block 508 drives the positioning block 509 to rotate clockwise, the inclined plane of the positioning block 509 is in conflict with the inclined plane of the adjacent positioning groove 506 at the moment, the positioning block 509 moves towards the inside of the installation groove 507 along the inclined plane of the positioning groove 506, the positioning block 509 compresses the spring 510 through the installation block 508, when the staff approaches the rotation angle of the inner hexagonal ring frame 503 to the angle of the adjacent nut 4 at the moment and aligns the installation groove 507 with the adjacent positioning groove 506, the spring 510 pushes the positioning block 509 out of the installation groove 507 through the installation block 508 and is clamped with the aligned transmission positioning groove 506, then the staff slightly rotates the nut 4 again according to the angle difference between the inner hexagonal ring frame 503 and the nut 4 at the moment, the angles of the nut 4 and the inner hexagonal ring frame 503 are matched, after the angles of the two groups of the nut 4 and the inner hexagonal ring frame 503 are adjusted, the staff can clamp the inner hexagonal ring frame 503 and the nut 4; a spring 510 is arranged on the inner wall of the mounting groove 507, two ends of the spring 510 are respectively contacted with the mounting groove 507 and the mounting block 508, and the spring 510 is always in a compressed state; the outer surface of the nut 4 is provided with clamping grooves 401 distributed in an annular shape, the inner surface of the inner hexagonal ring frame 503 is fixedly connected with clamping blocks 511 distributed in an annular shape, the clamping blocks 511 are clamped with the adjacent clamping grooves 401, and the clamping blocks 511 are rubber material members.

When the utility model is used, when a worker needs to connect the wire connector with the plug-in fuse, the worker firstly penetrates the wire connector through the U-shaped binding post 2 and clings to the surface of the plug-in fuse, then the sealing gasket 3 is sleeved at one end of the U-shaped binding post 2 and clings to the other surface of the wire connector, then the nut 4 is screwed at one end of the U-shaped binding post 2 and spirally moves downwards along the clockwise rotation direction until the nut 4 contacts with the sealing gasket 3, the wire connector is tightly pressed on the surface of the plug-in fuse through the sealing gasket 3, the worker installs the other sealing gasket 3 and the nut 4 from the other end of the U-shaped binding post 2 according to the operation, after the two nuts 4 are all installed, the worker only needs to simultaneously penetrate the two ends of the U-shaped binding post 2 from top to bottom and clamp the inner hexagonal ring frames 503 with the adjacent nuts 4 respectively, even if the nuts 4 vibrate, at the moment, the positioning mechanism 5 can simultaneously restrain the two nuts 4, the nuts 4 can be prevented from loosening or falling off, the wire connector can be tightly connected with the plug-in fuse, the fuse can be tightly connected, the probability of the bad operation of the plug-in fuse is guaranteed, and the fuse is not normally contacted with the plug-in fuse.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. Fuse double column structure for wind power (photovoltaic), characterized by comprising:

a wiring mechanism (1);

the wiring mechanism (1) comprises a U-shaped wiring terminal (2), two sealing gaskets (3) are sleeved on the surface of the U-shaped wiring terminal (2), two nuts (4) which are in threaded connection with the surface of the U-shaped wiring terminal (2) and respectively contact with the adjacent sealing gaskets (3), and a positioning mechanism (5) which is clamped with the other nut (4) is clamped on the outer surface of one nut (4);

the positioning mechanism (5) comprises a mounting plate (501), two round holes (502) are formed in one end of the mounting plate (501), two nuts (4) are respectively arranged in the two round holes (502), and inner wall clamping of each round hole (502) is provided with an inner hexagonal ring frame (503) which is clamped with the adjacent nuts (4).

2. The double-column structure of a fuse for wind power (photovoltaic) according to claim 1, wherein: two ring grooves (504) which are respectively communicated with the adjacent round holes (502) are formed in two ends of the mounting plate (501), and positioning rings (505) fixedly connected with the inner hexagonal ring frames (503) are rotatably connected to the inner walls of the ring grooves (504).

3. The double-column structure of a fuse for wind power (photovoltaic) according to claim 1, wherein: the inner wall of round hole (502) has been seted up and has been annular distributed constant head tank (506), mounting groove (507) have been seted up to the surface of interior hexagonal ring frame (503), the inner wall sliding connection of mounting groove (507) has installation piece (508), the one end fixedly connected with locating piece (509) of installation piece (508), the other end of locating piece (509) runs through mounting groove (507) and with adjacent constant head tank (506) joint.

4. A double-column structure of a fuse for wind power (photovoltaic) according to claim 3, wherein: the locating groove (506) and the clamping part of the locating block (509) are right-angled triangles matched with each other, and the mutual dragging direction of the locating groove (506) and the locating block (509) is opposite to the rotating moving direction of the nut (4) to the sealing gasket (3).

5. A double-column structure of a fuse for wind power (photovoltaic) according to claim 3, wherein: the inner wall of the mounting groove (507) is provided with a spring (510), two ends of the spring (510) are respectively contacted with the mounting groove (507) and the mounting block (508), and the spring (510) is always in a compressed state.

6. The double-column structure of a fuse for wind power (photovoltaic) according to claim 1, wherein: the nut is characterized in that clamping grooves (401) which are annularly distributed are formed in the outer surface of the nut (4), clamping blocks (511) which are annularly distributed are fixedly connected to the inner surface of the inner hexagonal ring frame (503), the clamping blocks (511) are clamped with the adjacent clamping grooves (401), and the clamping blocks (511) are made of rubber materials.