CN215418077U

CN215418077U - Intelligent current-limiting switch convenient for replacing fuse

Info

Publication number: CN215418077U
Application number: CN202120898146.8U
Authority: CN
Inventors: 赵菊芬; 罗鑫荣
Original assignee: Fujian Dpl Energy Technology Co ltd
Current assignee: Fujian Dpl Energy Technology Co ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2022-01-04
Anticipated expiration: 2031-04-28

Abstract

The utility model discloses an intelligent current-limiting switch convenient for replacing a fuse, which comprises a shell, wherein the shell is of a convex structure, an opening is formed in the middle of the upper end of the shell, a wire replacing device penetrates through the opening, thread grooves are formed in two sides of the upper end of the shell, fixing components penetrate through the thread grooves, a U-shaped plate is driven to ascend by a baffle plate through pulling a handle by the aid of the wire replacing device, the fuse blown by a load is replaced, and after the replacement is finished, the wire replacing device is reset by the aid of elasticity of a compression spring.

Description

Intelligent current-limiting switch convenient for replacing fuse

Technical Field

The utility model relates to the technical field of current-limiting switches, in particular to an intelligent current-limiting switch convenient for replacing a fuse.

Background

The existing overcurrent protection methods can be generally divided into three categories: hot melt fuses, thermal relays, and air switches. The fuse is correctly arranged in the circuit, and the fuse can be fused to cut off the current when the current is abnormally increased to a certain height and heat, so that the safe operation of the circuit is protected.

Chinese patent No. CN208806219U3 discloses a ceramic fuse easy to replace. Including two electrode tubes, electrode tube one side is provided with the circular port, two the electrode tube the one end of circular port is relative, and two pass through between the electrode tube circular port is connected with ceramic pipe, the other end fixedly connected with metal pin of electrode tube.

Although this patent makes the ceramic layer break when preventing metal fuse fusing to a certain extent, has protected the continuous use of ceramic pipe, has improved the being suitable for of device, according to the actual discovery, needs manual reset after the ceramic switch dropout, through internal thread groove and external screw thread groove threaded connection moreover, it is loaded down with trivial details, difficult operation to dismantle the step to there is not the ventilative function of heat dissipation. Therefore, an intelligent current-limiting switch convenient for replacing a fuse is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an intelligent current-limiting switch convenient for replacing a fuse, so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: an intelligent current-limiting switch convenient for replacing a fuse comprises a shell, wherein the shell is of a convex structure, an opening is formed in the middle of the upper end of the shell, and a wire replacing device penetrates through the opening;

threaded grooves are formed in two sides of the upper end of the shell, and fixing assemblies penetrate through the threaded grooves;

the two sides of the bottom end in the shell are fixedly provided with inserting blocks, the shell is also internally provided with conducting strips, the conducting strips are inserted on the inserting blocks, one ends of the conducting strips are fixedly connected with connecting blocks, and the connecting blocks are fixedly arranged at the bottom end of the shell;

the shell is characterized in that the left side surface and the right side surface of the shell are provided with openings, a lead penetrates through the openings, and a wire is arranged in the lead and placed on the conductive sheet.

Preferably, the wire changing device comprises a baffle, a U-shaped plate and a compression spring, the baffle covers the opening, a handle is fixedly arranged at the upper end of the baffle, the U-shaped plate is fixedly connected to the bottom end of the baffle, the bottom end of the U-shaped plate is fixedly connected to one end of the compression spring, and the other end of the compression spring is fixedly connected to the bottom end of the shell.

Preferably, slots are formed in two sides of the U-shaped plate, fuses penetrate through the slots, and wires at two ends of each fuse are placed on the conductive sheet.

Preferably, the fixing assembly comprises a locking screw, the locking screw is movably inserted into the thread groove, a backing plate penetrates through the upper end of the locking screw, and a pressing plate is fixedly arranged at the bottom end of the locking screw.

Preferably, the fixing assembly further comprises a connecting plate, the connecting plate is located at the bottom end of the pressing plate, and a first pressing block and a second pressing block are fixedly arranged on two sides of the bottom end of the connecting plate respectively.

Preferably, the front end face of the shell is detachably provided with a breathable net.

Compared with the prior art, the utility model has the beneficial effects that:

1. the wire changing device is arranged, the U-shaped plate is driven to ascend by the baffle plate through pulling the lifting handle, the fuse blown by load is changed, and the wire changing device is reset by matching with the elasticity of the compression spring after the wire changing device is changed;

2. through the arrangement of the fixing assembly, firstly, the wire and the wire wires on the fuse are placed on the wire sheets, the locking screws are screwed down to press the pressing plates downwards, the first wire pressing block and the second wire pressing block at the bottom end of the connecting plate are driven to press downwards, the inserting blocks are matched to bend the conducting sheets, and the wire wires are fixed on the conducting sheets, so that the wire wires are more stably contacted with the conducting sheets, and the possible poor contact of the fuse is avoided;

3. through set up ventilative net on the shell for the heat that produces after the fuse inserts the circuit can distribute away, prolongs the life of fuse, also can play dirt-proof effect simultaneously.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is an enlarged structural view of the structure at A in FIG. 2 according to the present invention;

FIG. 4 is a schematic structural diagram of a wire replacing device according to the present invention;

FIG. 5 is a schematic diagram of a conductive sheet according to the present invention.

In the figure: the wire replacement device comprises a shell 1, an opening 101, an opening 102, a thread groove 103, a wire replacement device 2, a baffle 201, a handle 202, a U-shaped plate 203, a slot 2031, a compression spring 204, a fuse 3, a fixing component 4, a backing plate 401, a pressing plate 402, a locking screw 403, a connecting plate 404, a first wire pressing block 4041, a second wire pressing block 4042, a conducting plate 5, a conducting wire 6, a plug-in block 7, a connecting block 8 and a breathable net 9.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", "front", "rear", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 1, are only used for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or structure referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be taken as limiting the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: an intelligent current-limiting switch convenient for replacing a fuse comprises a shell 1, wherein the shell 1 is of a convex structure, an opening 101 is formed in the middle of the upper end of the shell 1, and a wire replacing device 2 penetrates through the opening 101;

both sides of the upper end of the shell 1 are provided with thread grooves 103, and the fixing components 4 penetrate through the thread grooves 103;

the two sides of the bottom end in the shell 1 are fixedly provided with inserting blocks 7, the shell 1 is also internally provided with conducting strips 5, the conducting strips 5 are inserted on the inserting blocks 7, one end of each conducting strip 5 is fixedly connected with a connecting block 8, and the connecting block 8 is fixedly arranged at the bottom end of the shell 1;

the left side and the right side of the shell 1 are provided with openings 102, the wires 6 penetrate through the openings 102, and the wires are arranged in the wires 6 and placed on the conducting strips 5.

The wire changing device 2 comprises a baffle 201, a U-shaped plate 203 and a compression spring 204, the baffle 201 covers the opening 101, a handle 202 is fixedly arranged at the upper end of the baffle 201, the U-shaped plate 203 is fixedly connected to the bottom end of the baffle 201, the bottom end of the U-shaped plate 203 is fixedly connected with one end of the compression spring 204, the other end of the compression spring 204 is fixedly connected with the bottom end of the shell 1, and the handle 202 is pulled, so that the baffle 201 drives the U-shaped plate 203 to ascend.

Slot 2031 has been seted up to U template 203 both sides, run through being equipped with fuse 3 in the slot 2031, the electric wire at fuse 3 both ends is placed on conducting strip 5, the back that U template 203 rises, fuse 3 to the load blow is changed, after the change finishes, the elasticity of cooperation compression spring 204 makes the device of changing traditional thread binding putting 2 and resets, compare in current bolt fastening mode, change fuse 3 through tensile mode, the security of using has been guaranteed, make to change fuse 3 and become very convenient.

The fixing assembly 4 comprises a locking screw 403, the locking screw 403 is movably inserted into the thread groove 103, a backing plate 401 penetrates through the upper end of the locking screw 403, and a pressing plate 402 is fixedly arranged at the bottom end of the locking screw 403.

Fixed subassembly 4 still includes connecting plate 404, connecting plate 404 is located clamp plate 402 bottom, and connecting plate 404 bottom both sides are fixed respectively and are equipped with first line ball 4041 and second line ball 4042, screw up locking screw 403, make clamp plate 402 push down, drive first line ball 4041 and the second line ball 4042 of connecting plate 404 bottom and push down, cooperation plug block 7 is bent conducting strip 5, fix the electric wire on conducting strip 5, it is more firm to make the electric wire and 5 contacts of conducting strip, difficult emergence causes the circuit break because of the wire is not hard up, fuse 3 contact failure who has avoided probably leading to.

Detachable is equipped with ventilative net 9 on the terminal surface before shell 1 for the heat that produces after fuse 3 inserts the circuit can distribute away, also can play dirt-proof effect simultaneously.

The working principle is as follows: according to the utility model, the wire changing device 2 is arranged, the U-shaped plate 203 is driven to ascend by the baffle plate 201 by pulling the lifting handle 202, the fuse 3 blown by load is changed, and after the wire changing device 2 is changed, the elasticity of the compression spring 204 is matched to reset the wire changing device 2, compared with the existing bolt fixing mode, the fuse 3 is changed in a stretching mode, the use safety is ensured, and the fuse 5 is very convenient to change; by arranging the fixing component 4, firstly, the wires 6 and the fuses 3 are placed on the wire pieces 5, and the locking screws 403 are screwed down, so that the pressing plate 402 is pressed down to drive the first wire pressing block 4041 and the second wire pressing block 4042 at the bottom end of the connecting plate 404 to be pressed down, the inserting block 7 is matched to bend the conducting pieces 5, the wires are fixed on the conducting pieces, the wires are more stably contacted with the conducting pieces 5, the disconnection caused by the loosening of the wires is not easy to occur, and the possible poor contact of the fuses 3 is avoided; through set up ventilative net 9 on shell 1 for the heat that produces after fuse 3 inserts the circuit can distribute away, prolongs fuse 3's life, also can play dirt-proof effect simultaneously.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an intelligence current-limiting switch convenient to change fuse, includes shell (1), shell (1) is type structure of protruding, its characterized in that: an opening (101) is formed in the middle of the upper end of the shell (1), and a wire changing device (2) penetrates through the opening (101);

threaded grooves (103) are formed in two sides of the upper end of the shell (1), and fixing components (4) penetrate through the threaded grooves (103);

the bottom end of the shell (1) is fixedly provided with inserting blocks (7) at two sides, the shell (1) is also internally provided with a conducting plate (5), the conducting plate (5) is inserted on the inserting blocks (7), one end of the conducting plate (5) is fixedly connected with a connecting block (8), and the connecting block (8) is fixedly arranged at the bottom end of the shell (1);

the shell (1) is provided with openings (102) on the left side surface and the right side surface, a lead (6) penetrates through the openings (102), and a wire is arranged in the lead (6) and placed on the conducting strip (5).

2. The intelligent current-limiting switch convenient for replacing a fuse according to claim 1, wherein: trade traditional thread binding putting (2) including baffle (201), U template (203) and compression spring (204), baffle (201) cover on opening (101), just baffle (201) upper end is fixed and is equipped with handle (202), and baffle (201) bottom fixedly connected with U template (203), U template (203) bottom with compression spring (204) one end fixed connection, compression spring (204) other end with shell (1) bottom fixed connection.

3. The intelligent current-limiting switch convenient for replacing a fuse according to claim 2, wherein: slots (2031) are formed in two sides of the U-shaped plate (203), fuses (3) penetrate through the slots (2031), and wires at two ends of each fuse (3) are placed on the corresponding conducting strip (5).

4. The intelligent current-limiting switch convenient for replacing a fuse according to claim 1, wherein: the fixing component (4) comprises a locking screw (403), the locking screw (403) is movably inserted into the thread groove (103), a backing plate (401) penetrates through the upper end of the locking screw (403), and a pressing plate (402) is fixedly arranged at the bottom end of the locking screw (403).

5. The intelligent current-limiting switch convenient for replacing a fuse according to claim 4, wherein: the fixed component (4) further comprises a connecting plate (404), the connecting plate (404) is located at the bottom end of the pressing plate (402), and a first pressing line block (4041) and a second pressing line block (4042) are fixedly arranged on two sides of the bottom end of the connecting plate (404) respectively.

6. The intelligent current-limiting switch convenient for replacing a fuse according to claim 1, wherein: the front end face of the shell (1) is detachably provided with a breathable net (9).