CN213601833U

CN213601833U - Fuse protector

Info

Publication number: CN213601833U
Application number: CN202022923744.4U
Authority: CN
Inventors: 李挺; 梁金星
Original assignee: Zhejiang Fritz Electric Technology Co ltd
Current assignee: Zhejiang Fritz Electric Technology Co ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-07-02
Anticipated expiration: 2030-12-08

Abstract

The utility model relates to a fuse relates to the field of electric basic element, and it includes the casing, is provided with stationary vane and activity fin on the casing, is formed with the draw-in groove between stationary vane and the casing, is formed with the constant head tank between activity fin and the casing, and casing, stationary vane and activity fin concatenation are formed with and supply the guide rail card to go into the mounting groove of installation, are provided with on the tank bottom inner wall of mounting groove and support the piece, support the guide rail setting in the tight mounting groove of piece support. Through setting up the tight piece that supports, thereby support tight piece and support the lateral wall of tight mounting groove inner guide rail tightly in stationary vane and movable vane on with the guide rail, reduced between guide rail and the mounting groove inner wall because of there being the gap to lead to being connected the loose condition between guide rail and the mounting groove inner wall, improved the connection stability of guide rail on the fuse.

Description

Fuse protector

Technical Field

The present application relates to the field of electrical basic elements, and in particular to a fuse.

Background

The fuse is an electric appliance with safety protection function, it can be used for isolation protection between power supply and load, and also can be extensively used for protecting electric network and electric equipment.

For example, a patent publication No. CN206370397U of Chinese utility model discloses a photovoltaic fuse, which comprises a base and a side cover connected with the base to form an inner cavity, wherein the base is provided with a connecting terminal for electric connection, the connecting terminal is provided with a contact sheet for contacting a contact of a melt and a fixing screw inserted into the connecting terminal for fixing a wire, a pressing plate is arranged between the connecting terminal and the contact sheet, and two sides of the pressing plate are bent downwards to form a wire accommodating groove for accommodating the wire; one side of the contact piece facing the pressure plate is provided with a first check line, and a second check line is arranged in the line accommodating groove.

With the above fuse, the inventors have considered that when the guide rail is mounted on the fuse, the contact between the fuse and the guide rail is relatively loose, so that the connection stability of the guide rail on the fuse is not good and needs to be improved.

SUMMERY OF THE UTILITY MODEL

In order to improve the not good problem of the connection stability of guide rail on the fuse, this application provides a fuse.

The application provides a fuse adopts following technical scheme:

the utility model provides a fuse, which comprises a housin, be provided with fixed wing and activity fin on the casing, fixed wing with be formed with the draw-in groove between the casing, the activity fin with be formed with the constant head tank between the casing, just the casing fixed wing with the concatenation of activity fin is formed with the mounting groove that supplies the guide rail card to go into the installation, be provided with the piece that supports on the tank bottom inner wall of mounting groove, the piece that supports tightly guide rail setting in the mounting groove.

Through adopting above-mentioned technical scheme, set up and support tight piece, accomplish the installation back in the mounting groove when the guide rail card is gone into, thereby support tight piece and support the lateral wall of tight mounting groove inner guide rail tightly on stationary vane and movable vane, reduced between guide rail and the mounting groove inner wall because of there being the gap to lead to being connected the condition loose between guide rail and the mounting groove inner wall, improved the connection stability of guide rail on the fuse.

Optionally, a guide surface is arranged on the abutting block, and the guide surface is located on one side, close to the positioning groove, of the abutting block.

Through adopting above-mentioned technical scheme, set up the spigot surface, when the guide rail card goes into in the mounting groove, the tip of guide rail is contradicted the spigot surface and is gone into the draw-in groove along the spigot surface card in, reduced the guide rail card go into the in-process and support the lateral wall of tight piece and then the condition of blocking for the corresponding tip card of guide rail is gone into in the draw-in groove more conveniently, the guide rail supports the too big condition that leads to supporting the tight piece damage of effort of tight piece when having reduced the widelys installation guide rail simultaneously, feasible supporting the tight piece more durable.

Optionally, an inclined surface is further disposed on the abutting block, and the inclined surface is located on one side, close to the clamping groove, of the abutting block.

Through adopting above-mentioned technical scheme, set up the inclined plane, back in the draw-in groove is gone into to the one end card of guide rail, the in-process in the constant head tank is gone into to the other end card that removes the guide rail messenger guide rail, the inclined plane is contradicted gradually to the lateral wall of guide rail, go into the constant head tank to the other end card of guide rail in, the lateral wall and the inclined plane of guide rail break away from, at this moment, support the tip that tight piece is close to the guide rail and support the lateral wall of tight guide rail, the in-process that has reduced the guide rail card to go into in the constant head tank is directly supported.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the abutting block, the abutting block abuts against the outer side wall of the guide rail in the mounting groove so as to abut the guide rail on the fixed wing and the movable wing, the situation that connection between the guide rail and the inner wall of the mounting groove is loose due to the existence of a gap between the guide rail and the inner wall of the mounting groove is reduced, and the connection stability of the guide rail on the fuse is improved;

2. by arranging the guide surface, the situation that the guide rail is clamped by abutting against the outer side wall of the abutting block in the process of clamping the guide rail into the mounting groove is reduced, so that the corresponding end part of the guide rail is clamped into the clamping groove more conveniently, and meanwhile, the situation that the abutting block is damaged due to overlarge acting force of the guide rail abutting against the abutting block is reduced, so that the abutting block is more durable;

3. through setting up the inclined plane, reduced the guide rail card and gone into the in-process in the constant head tank and directly supported to support tight piece and then block and lead to the unable card of guide rail to go into the condition in the constant head tank for it is more convenient in the constant head tank that the guide rail card is gone into.

Drawings

FIG. 1 is an overall schematic view of embodiment 1 of the present application;

FIG. 2 is an enlarged view of portion A of FIG. 1, mainly showing the structure of the abutment block;

FIG. 3 is an overall schematic view of the guide rail of embodiment 1 of the present application after being installed;

fig. 4 is an overall schematic view of embodiment 2 of the present application.

Description of reference numerals: 1. a housing; 11. a housing; 12. an inner shell; 2. a securing flap; 21. a card slot; 3. mounting blocks; 4. a movable wing panel; 5. positioning a groove; 6. mounting grooves; 7. a propping block; 71. a guide surface; 72. an inclined surface.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a fuse.

Example 1

Referring to fig. 1, the fuse includes a housing 1, the housing 1 is formed by splicing an outer shell 11 and an inner shell 12, and the outer shell 11 and the inner shell 12 are symmetrically arranged.

Referring to fig. 2, a fixing wing 2 is fixed on an outer side wall of the housing 11, and a slot 21 is formed between the fixing wing 2 and a corresponding outer side wall of the housing 11.

Referring to fig. 1, a mounting block 3 is further fixed on the outer side wall of the housing 11, the mounting block 3 and the fixing wing 2 are located on the same side of the housing 11, and the mounting block 3 and the fixing wing 2 are arranged at intervals. In this embodiment, the fixing tab 2, the mounting block 3 and the housing 11 are integrally provided.

Referring to fig. 1 and 3, a movable wing 4 is slidably connected between the mounting block 3 on the outer shell 11 and the mounting block 3 on the inner shell 12, and the sliding direction of the movable wing 4 is toward or away from the slot 21. The positioning groove 5 is formed between the movable wing 4 and the outer case 11 and the outer side wall of the inner case 12.

Referring to fig. 1, the outer shell 11 and the upper fixed wing 2, the inner shell 12 and the upper fixed wing 2 and the movable wing 4 are spliced to form a mounting groove 6, and the mounting groove 6 is communicated with the clamping groove 21 and the positioning groove 5. In actual use, the mounting groove 6 is used for clamping and mounting the guide rail.

Referring to fig. 1 and 2, a resisting block 7 is further fixed on the outer side wall of the housing 11, and the resisting block 7 is located at the bottom of the mounting groove 6 and is close to the clamping groove 21. The lateral wall of the abutting block 7 is fixedly provided with a guide surface 71, the guide surface 71 is positioned on one side of the abutting block 7 close to the positioning groove 5, the guide surface 71 is gradually away from the corresponding lateral wall of the shell 11 towards the direction close to the clamping groove 21, and the end part of the guide surface 71 close to the positioning groove 5 is flush with the corresponding lateral wall of the shell 11. The outer side wall of the abutting block 7 is further fixed with an inclined surface 72, the inclined surface 72 is located on one side of the abutting block 7 close to the clamping groove 21, and the inclined surface 72 is gradually away from the corresponding outer side wall of the housing 11 towards the direction away from the clamping groove 21. The end of the inclined surface 72 close to the card slot 21 is flush with the corresponding outer side wall of the housing 11, and the end of the inclined surface 72 far from the card slot 21 is coincident with the end of the guide surface 71 close to the card slot 21.

The abutting block 7 on the outer shell 11 is arranged at a distance from the abutting block 7 on the inner shell 12.

The implementation principle of the embodiment 1 is as follows:

when the guide rail is clamped into the mounting groove 6, one end of the guide rail abuts against the guide surface 71 on the abutting block 7 in the mounting groove 6 and is clamped into the clamping groove 21 along the guide surface 71, the guide rail is turned over to enable the other end of the guide rail to move towards the direction close to the positioning groove 5, at the moment, the guide rail gradually abuts against the inclined surface 72 on the abutting block 7 and is gradually close to the positioning groove 5, the guide rail is smoothly clamped into the positioning groove 5 to be mounted in the mounting groove 6, at the moment, the guide rail is separated from the inclined surface 72 on the abutting block 7, the abutting block 7 in the mounting groove 6 abuts against the outer side wall of the guide rail, so that the guide rail is abutted against the fixed wing piece 2 and the movable wing piece 4, the condition that connection between the guide rail and the inner wall of the mounting groove 6 is loose due to the existence of gaps between the guide.

Example 2

Referring to fig. 4, the difference from embodiment 1 is that the outer shell 11 and the inner shell 12 are asymmetrically arranged, the thickness of the outer shell 11 is greater than that of the inner shell 12, the abutting block 7 is fixed on the outer shell 11, and the abutting block 7 is located at the bottom of the mounting groove 6 and is arranged close to the clamping groove 21.

The implementation principle of the embodiment 2 is as follows: by arranging the abutting block 7, the use of materials is reduced, and the effect of reducing the waste of the materials is achieved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a fuse, includes casing (1), be provided with stationary vane (2) and activity fin (4) on casing (1), stationary vane (2) with be formed with draw-in groove (21) between casing (1), activity fin (4) with be formed with constant head tank (5) between casing (1), just casing (1) stationary vane (2) with activity fin (4) concatenation is formed with and supplies guide rail card to go into mounting groove (6) of installation, its characterized in that: the supporting device is characterized in that a supporting block (7) is arranged on the inner wall of the groove bottom of the mounting groove (6), and the supporting block (7) supports the guide rail in the mounting groove (6).

2. The fuse of claim 1, wherein: the abutting block (7) is provided with a guide surface (71), and the guide surface (71) is located on one side, close to the positioning groove (5), of the abutting block (7).

3. The fuse of claim 2, wherein: the abutting block (7) is further provided with an inclined surface (72), and the inclined surface (72) is located on one side, close to the clamping groove (21), of the abutting block (7).