CN219892121U

CN219892121U - Under-voltage release

Info

Publication number: CN219892121U
Application number: CN202320933990.9U
Authority: CN
Inventors: 辛德俭
Original assignee: Xiangyang Hete Electrical Manufacturing Co ltd
Current assignee: Xiangyang Hete Electrical Manufacturing Co ltd
Priority date: 2023-04-23
Filing date: 2023-04-23
Publication date: 2023-10-24
Anticipated expiration: 2033-04-23

Abstract

The utility model relates to an undervoltage release, which comprises a release body, a cover body and an ash blocking piece, wherein a wire body connecting hole is formed at the upper part of the release body, the cover body is slidably sleeved at the top of the release body and covers the wire body connecting hole, an opening is formed in the cover body and right above the wire body connecting hole, and the ash blocking piece is provided with a connecting part arranged in the opening and an elastic clamping part which is positioned in the connecting part and can deform for a wire body to pass through. According to the under-voltage release, the ash blocking piece plays a role in blocking ash between the wire body connecting hole formed in the upper portion of the release body and the connecting wire body, dust is effectively prevented from entering between the wire body connecting hole and the wire body, the phenomenon of short circuit between the under-voltage release and the connecting wire body caused by dust is avoided, the safety of the under-voltage release in the use process is guaranteed, and the service life of the under-voltage release is prolonged.

Description

Under-voltage release

Technical Field

The utility model relates to the technical field of piezoelectric devices, in particular to an undervoltage release.

Background

The undervoltage relay or the release refers to a relay which enables a mechanical switch to be opened or closed with or without delay when the terminal voltage of the relay or the release is reduced to a preset value. Undervoltage release: the under-voltage release is a release which enables the circuit breaker to be opened with or without delay when the terminal voltage of the under-voltage release is reduced to a certain specified range, and the under-voltage release should operate when the power supply voltage is reduced or even slowly reduced to 70-35% of the rated working voltage, and the under-voltage release should prevent the circuit breaker from being closed when the power supply voltage is equal to 35% of the rated working voltage of the release; when the power supply voltage is equal to or greater than the rated operating voltage of the 85% undervoltage release, the circuit breaker can be reliably closed under the thermal condition. Therefore, when a certain voltage drop occurs in the power supply voltage in the protected circuit, the circuit breaker can be automatically opened to cut off the power supply, so that the load electric appliances or electric equipment below the circuit breaker are prevented from being damaged by the undervoltage. When the circuit breaker is used, the coil of the undervoltage release is connected to the power side of the circuit breaker, and the circuit breaker can be switched on after the undervoltage release is electrified. Corresponding to the high-voltage protection, a tripping command is mainly sent out when a fault occurs, so that a matched switch trips, the accident is prevented from being enlarged, and the undervoltage release is increasingly widely applied at present.

In the grant publication CN217655830U, an undervoltage release for outputting an auxiliary signal is described, a coil is electrically connected to an external transmission circuit, a coil push rod is disposed in the middle of the coil, and the current in the coil and the current in the external transmission circuit are changed in equal proportion, so that a changed electromagnetic attraction force is formed. At present, certain dust can be accumulated on the top of the undervoltage release in long-time use of the undervoltage release, certain potential safety hazards exist on a connecting hole on the top of the undervoltage release and a connecting wire arranged in the connecting hole in the use process due to accumulation of the long-time dust, huge loss can be caused if a short circuit phenomenon occurs, normal use of the undervoltage release is inconvenient, and safety of the undervoltage release in the use process cannot be guaranteed.

Disclosure of Invention

The utility model aims to overcome the technical defects, provides an undervoltage release, and solves the technical problem that in the prior art, certain potential safety hazards exist between a connecting hole at the top of the undervoltage release and a connecting wire due to long-time dust accumulation in the long-time use process of the undervoltage release.

In order to achieve the technical purpose, the technical scheme of the utility model comprises an undervoltage release, which comprises a release body, a cover body and an ash blocking piece, wherein a wire body connecting hole is formed at the upper part of the release body, the cover body is slidably sleeved at the top of the release body and covers the wire body connecting hole, an opening is formed on the cover body and right above the wire body connecting hole, and the ash blocking piece is provided with a connecting part arranged at the opening and an elastic clamping part which is positioned in the connecting part and can deform for the wire body to pass through.

Preferably, the ash blocking piece comprises a connecting ring, a plurality of first ash blocking pieces and a plurality of second ash blocking pieces, the connecting ring is installed in the opening, the first ash blocking pieces are installed around the inner wall of the connecting ring, the second ash blocking pieces are correspondingly installed at the end parts of the first ash blocking pieces, the first ash blocking pieces and the second ash blocking pieces enclose to form a sealing blocking piece so as to be attached to the peripheral wall of the wire body, the connecting ring is a connecting part, and the first ash blocking pieces and the second ash blocking pieces are elastic clamping parts.

Preferably, the first ash blocking sheet is a tough rubber sheet, and the second ash blocking sheet is a soft colloid sheet.

Preferably, the trip device further comprises a lock catch, wherein the lock catch is arranged on the side wall of the cover body, and the lock catch penetrates through the cover body and is inserted into the trip device body.

Preferably, the side wall of the cover body is provided with a locking hole, the side wall of the release body is provided with a clamping groove, and the lock catch penetrates through the locking hole and is clamped in the clamping groove.

Preferably, the trip release further comprises a blocking piece and a limiting piece, wherein the blocking piece is installed on the trip release body, the limiting piece is installed on the cover body, and the limiting piece is clamped on two sides of the blocking piece.

Preferably, the blocking piece is a transverse block, the limiting piece is two vertical blocks, and the two vertical blocks are respectively abutted to two sides of the transverse block.

Preferably, the trip unit further comprises a connecting piece, wherein the connecting piece is installed at the bottom of the trip unit body.

Preferably, the connector is configured in a shape of "┙".

Preferably, the surfaces of the first ash blocking sheet and the second ash blocking sheet are attached with an ash preventing film.

Compared with the prior art, the utility model has the beneficial effects that: according to the under-voltage release, through the arrangement of the release body, the cover body and the ash blocking piece, the cover body plays a role in blocking ash to the release body, the ash blocking piece plays a role in blocking ash between a wire body connecting hole formed in the upper portion of the release body and a connecting wire body, dust is effectively prevented from entering between the wire body connecting hole and the wire body, the phenomenon of short circuit between the under-voltage release and the connecting wire body caused by dust is avoided, the safety of the under-voltage release in the use process is guaranteed, and the service life of the under-voltage release is prolonged.

Drawings

FIG. 1 is a schematic diagram of an undervoltage release of the present utility model;

FIG. 2 is a schematic diagram of an undervoltage release of the present utility model without a cover installed;

FIG. 3 is a top view of a cover of the undervoltage release of the present utility model;

fig. 4 is an enlarged view of a portion of the undervoltage release of the present utility model at a of fig. 3.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1-4, the utility model provides an undervoltage release, which comprises a release body 10, a cover 20 and an ash blocking member 30, wherein a wire connecting hole is formed at the upper part of the release body 10, the cover 20 is slidably sleeved on the top of the release body 10 and covers the wire connecting hole, an opening is formed on the cover 20 and is positioned right above the wire connecting hole, the ash blocking member 30 is mounted on the opening, and the ash blocking member 30 is provided with a connecting part mounted on the opening and an elastic clamping part which is positioned in the connecting part and can deform for a wire to pass through.

As shown in fig. 4, through the arrangement of the release body 10, the cover body 20 and the ash blocking member 30, the cover body 20 plays a role in blocking ash for the release body 10, the ash blocking member 30 plays a role in blocking ash between a wire body connecting hole formed at the upper part of the release body 10 and a connecting wire body, dust is effectively prevented from entering between the wire body connecting hole and the wire body, the phenomenon of short circuit between the undervoltage release and the connecting wire body caused by dust is avoided, the safety of the undervoltage release in the use process is ensured, and the service life of the undervoltage release is prolonged.

In this embodiment, specifically, the ash blocking member 30 includes a connection ring 31, a plurality of first ash blocking pieces 32 and a plurality of second ash blocking pieces 33, the connection ring 31 is installed in the opening, a plurality of first ash blocking pieces 32 are installed around the inner wall of the connection ring 31, a plurality of second ash blocking pieces 33 are correspondingly installed at the ends of the first ash blocking pieces 32, a plurality of first ash blocking pieces 32 and a plurality of second ash blocking pieces 33 are enclosed to form a sealing blocking member, so that the peripheral wall of the wire body can be attached, the connection ring 31 is a connection part, and the first ash blocking pieces 32 and the second ash blocking pieces 33 are elastic clamping parts.

Further, the first ash blocking sheet 32 is a tough rubber sheet, and the second ash blocking sheet 33 is a soft rubber sheet. The surfaces of the first ash blocking sheet 32 and the second ash blocking sheet 33 are adhered with an ash preventing film. The ash prevention film protects the first ash blocking sheet 32 and the second ash blocking sheet 33.

Specifically, as shown in fig. 1, the under-voltage release further includes a latch 40, where the latch 40 is mounted on a side wall of the cover 20, and the latch 40 passes through the cover 20 and is plugged into the release body 10.

Furthermore, the side wall of the cover 20 is provided with a locking hole 21, the side wall of the release body 10 is provided with a clamping groove, and the lock catch 40 passes through the locking hole 21 and is clamped in the clamping groove.

In this embodiment, specifically, two latches 40 are disposed on the left and right sides of the cover 20, and the stability of the cover 20 is improved due to the two latches 40 disposed on each side of the cover 20. The locking holes 21 are formed in two groups along the vertical direction of one side wall of the cover body 20, each group of two locking holes 21 is provided with a lock catch 40 in an inserted mode, each lock catch 40 comprises a bolt and a cap body, the bolt is fixed to the cap body, and the end portion of the bolt can penetrate through the locking holes 21 and is inserted into the clamping groove. The diameter of the cap is larger than the diameter of the locking hole 21.

The undervoltage release further comprises a blocking piece 50 and a limiting piece 60, wherein the blocking piece 50 is installed on the release body 10, the limiting piece 60 is installed on the cover body 20, and the limiting piece 60 is clamped on two sides of the blocking piece 50. The blocking piece 50 is a transverse block, the limiting piece 60 is two vertical blocks, and the two vertical blocks are respectively abutted to two sides of the transverse block. Both the stopper 50 and the stopper 60 are made of hard rubber materials.

In this embodiment, the blocking member 50 is fixedly connected with the release body 10, and the limiting member 60 is fixedly connected with the cover 20. The number of the blocking pieces 50 is four, the left side and the right side of the release body 10 are respectively provided with two blocking pieces 50, and each blocking piece 50 is provided with two vertical blocks matched with the two vertical blocks.

The undervoltage release further comprises a connecting piece 70, wherein the connecting piece 70 is installed at the bottom of the release body 10. The connector 70 is configured in a "┙" shape.

The connecting piece 70 is fixedly arranged at the bottom of the release body 10, and the connecting piece 70 is arranged, so that the release body 10 is conveniently carried, and the release body 10 and external objects are also conveniently installed.

When the undervoltage release is used, an external wire body passes through the second ash blocking sheet 33 and the first ash blocking sheet 32, the wire body passes through the cover body 20 and is inserted into a wire body connecting hole at the top of the release body 10 to be connected with the release body 10, then the lock catch 40 is taken down, the cover body 20 slides upwards, when a locking hole 21 at the bottom of the side wall of the cover body 20 is horizontal with a clamping groove of the side wall of the release body 10, the lock catch 40 passes through the locking hole 21 and is inserted into the clamping groove, the cover body 20 is fixed with the release body 10, and the cover body 20 plays roles of blocking ash and protecting the top of the release body 10.

The above-described embodiments of the present utility model do not limit the scope of the present utility model. Any other corresponding changes and modifications made in accordance with the technical idea of the present utility model shall be included in the scope of the claims of the present utility model.

Claims

1. The utility model provides an undervoltage release, its characterized in that includes release body, cover body and ash blocking piece, release body upper portion forms the line body connecting hole, cover body slidable cover is located release body top and cover the line body connecting hole, cover the body and be located offer the opening directly over the line body connecting hole, ash blocking piece have install in open-ended connecting portion and be located flexible joint portion that can deform in the connecting portion for the line body passes.

2. The undervoltage release of claim 1, wherein: the ash blocking piece comprises a connecting ring, a plurality of first ash blocking pieces and a plurality of second ash blocking pieces, wherein the connecting ring is installed in the opening, the first ash blocking pieces are installed around the inner wall of the connecting ring, the second ash blocking pieces are correspondingly installed at the end parts of the first ash blocking pieces, the first ash blocking pieces and the second ash blocking pieces are enclosed to form a sealing blocking piece so as to be attached to the peripheral wall of the wire body, the connecting ring is a connecting part, and the first ash blocking pieces and the second ash blocking pieces are elastic clamping parts.

3. The undervoltage release of claim 2, wherein: the first ash blocking piece is a tough rubber piece, and the second ash blocking piece is a soft colloid piece.

4. The undervoltage release of claim 1, wherein: the trip device also comprises a lock catch, wherein the lock catch is arranged on the side wall of the cover body, and penetrates through the cover body and is inserted into the trip device body.

5. The undervoltage release of claim 4, wherein: the locking hole is formed in the side wall of the cover body, the clamping groove is formed in the side wall of the release body, and the lock catch penetrates through the locking hole and is clamped in the clamping groove.

6. The undervoltage release of claim 1, wherein: still include stopper and locating part, the stopper install in the release body, the locating part install in the cover body, the locating part joint in the stopper both sides.

7. The undervoltage release of claim 6, wherein: the stop piece is a transverse block, the limiting piece is two vertical blocks, and the two vertical blocks are respectively abutted to two sides of the transverse block.

8. The undervoltage release of claim 1, wherein: still include the connecting piece, the connecting piece install in release body bottom.

9. The undervoltage release of claim 8, wherein: the connector is configured in a shape of ┙.

10. An undervoltage release according to claim 3, wherein: the surfaces of the first ash blocking piece and the second ash blocking piece are attached with an ash preventing film.