Fusing current-limiting aluminum bar structure

Abstract

The utility model relates to the technical field of aluminum bar structures, in particular to a fusible current-limiting aluminum bar structure, which is provided with a screwing tightening mechanism and a matched lock washer structure, so that screwing connection and fixation can be realized, loosening and falling off are avoided, and the reliability is improved. Comprising an aluminum bar body, caulking grooves, internal thread rings, an external thread fuse link, a front stop block fuse link and a lock washer, the aluminum bar body is provided with a plurality of caulking grooves, the rear side of the interior of each caulking groove is connected with the outer side of one internal thread ring, the front end of the external thread fuse link is connected with the middle of the rear end of the front stop block fuse link, and the lock washer is connected with the rear end of the front stop block fuse link. And the outer side of the rear part of the front stop block fuse link is connected with the front side of the lock washer.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum bar structures, in particular to a fuseable current-limiting aluminum bar structure. Background Technique

[0002] At present, the soft connecting pieces made of aluminum foil material, simply referred to as aluminum bars, are widely used in circuit structures.

[0003] There is a prior fuseable current-limiting aluminum bar structure with the Chinese patent publication number CN214753620U. An installation hole is provided on the aluminum bar body, and an alloy block is installed on the installation hole. It has a small volume, low cost, can withstand a large current density, and has strong practicability. By adopting the structure of inlaying the aluminum bar and the alloy, the temperature rise of the aluminum bar body can be ensured within the allowable range under normal working conditions. Under abnormal working conditions, the alloy block melts and separates first, resulting in a rapid increase in the temperature of the aluminum bar body and then melting, which can shorten the melting time of the aluminum bar under short circuit. By adopting the structure of inlaying the aluminum bar and the alloy to form a thermal fuse, the fuse can be replaced, reducing the size space occupied by the fuse. The number of installation holes on the aluminum bar body can be flexibly designed according to the actual product requirements, and the melting speed during overload can also be adjusted. The structure design is ingenious.

[0004] However, the installation of the fusing metal block in this structure is unstable and the reliability is poor. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides a fuseable current-limiting aluminum bar structure which is provided with a screw tightening mechanism and a supporting lock washer structure, can realize screw connection and fixation, avoid loosening and falling off, and improve reliability.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the utility model provides the following technical solution: A fuseable current-limiting aluminum bar structure, including an aluminum bar body, an embedded groove, an internal thread ring, an external thread fuse body, a front block fuse body and a lock washer. Multiple groups of embedded grooves are provided on the aluminum bar body. The rear sides of each group of embedded grooves are respectively connected to the outer sides of a group of internal thread rings. The front end of the external thread fuse body is connected to the middle of the rear end of the front block fuse body. The outer side of the rear part of the front block fuse body is connected to the front side of the lock washer.

[0009] Preferably, it further includes a screwing groove, and a screwing groove is provided in the middle of the front side of the front block fuse body.

[0010] Preferably, it further includes a clamping strip, a limiting strip, a first through groove, a clamping groove, a second through groove, a limiting groove, a fixing bolt and a fixing nut. The right side of the aluminum bar body is connected to the left side of the clamping strip, and the right side of the clamping strip is connected to the middle of the left side of the limiting strip. A set of first through grooves are respectively arranged on the upper and lower sides of the clamping strip. The outer side of the left side of the aluminum bar body is provided with a clamping groove. A set of second through grooves are respectively arranged on the upper and lower sides of the clamping groove on the aluminum bar body. The right side of the clamping groove on the aluminum bar body is provided with a limiting groove. The outer side of the fixing bolt is detachably screwed with the inner side of the fixing nut.

[0011] Preferably, it further includes a first marking strip and a second marking strip. A set of second marking strips are respectively arranged on one side of each set of embedding grooves at the front end of the aluminum bar body, and a first marking strip is arranged at one end of the front side of the front blocking fuse body.

[0012] Preferably, it further includes information engraving. Information engraving is arranged on the upper right side of the front end of the aluminum bar body.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a fuseable current-limiting aluminum bar structure, which has the following beneficial effects:

[0015] The external thread fuse body corresponds to a set of internal thread rings, and the external thread fuse body can be rotated backward and inserted into the internal thread ring, and then screwed into the inner side of the internal thread ring. After that, the front blocking fuse body is placed in front of the embedding groove and elastically supported by the anti-loosening washer, so as to realize the circumferential fixation of the front blocking fuse body and the external thread fuse body, avoiding screw loosening. During use, the front blocking fuse body and the external thread fuse body can be preferentially melted at high temperature to protect the circuit. A screw tightening mechanism is provided, and a supporting anti-loosening washer structure is provided, which can realize screw connection and fixation, avoid loosening and falling off, and improve reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an axonometric view of the structure of the utility model;

[0017] Figure 2 is the Figure 1 top view of the utility model;

[0018] Figure 3 is the Figure 1 front view of the utility model;

[0019] Figure 4 is the Figure 1 right view of the utility model.

[0020] Reference numerals in the drawings: 1, aluminum bar body; 2, groove; 3, internal thread ring; 4, external thread fuse body; 5, front block fuse body; 6, screwing groove; 7, lock washer; 8, clamping strip; 9, limiting strip; 10, first through groove; 11, clamping groove; 12, second through groove; 13, limiting groove; 14, fixing bolt; 15, fixing nut; 16, first marking strip; 17, second marking strip; 18, information engraving. Detailed implementation mode

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Embodiment

[0023] Please refer to Figures 1-4 , a fuseable current-limiting aluminum bar structure, including an aluminum bar body 1, a groove 2, an internal thread ring 3, an external thread fuse body 4, a front block fuse body 5 and a lock washer 7. A plurality of groups of grooves 2 are arranged on the aluminum bar body 1. The rear sides of each group of grooves 2 are respectively connected to the outer sides of a group of internal thread rings 3. The front end of the external thread fuse body 4 is connected to the middle of the rear end of the front block fuse body 5. The outer side of the rear part of the front block fuse body 5 is connected to the front side of the lock washer 7. The external thread fuse body 4 corresponds to a group of internal thread rings 3, and the external thread fuse body 4 can be rotated backward and inserted into the inner side of the internal thread ring 3 by screwing. Then, the front block fuse body 5 is placed on the front side of the groove 2. Through the elastic support of the lock washer 7, circumferential fixation of the front block fuse body 5 and the external thread fuse body 4 is generated to prevent screwing loosening. During use, the front block fuse body 5 and the external thread fuse body 4 can be preferentially melted at high temperature to protect the circuit.

[0024] It further includes a screwing groove 6, and a screwing groove 6 is arranged in the middle of the front side of the front block fuse body 5. Through the screwing groove 6, tools such as a screwdriver can be used for auxiliary screwing operations, which is convenient for loading and unloading and improves convenience.

[0025] It further includes a clamping strip 8, a limiting strip 9, a first through groove 10, a clamping groove 11, a second through groove 12, a limiting groove 13, a fixing bolt 14 and a fixing nut 15. The right side of the aluminum bar body 1 is connected to the left side of the clamping strip 8, and the right side of the clamping strip 8 is connected to the middle of the left side of the limiting strip 9. A set of first through grooves 10 are respectively arranged on the upper and lower sides of the clamping strip 8. A clamping groove 11 is arranged outside the left side of the aluminum bar body 1. A set of second through grooves 12 are respectively arranged on the upper and lower sides of the clamping groove 11 on the aluminum bar body 1. A limiting groove 13 is arranged on the right side of the clamping groove 11 on the aluminum bar body 1. The outer side of the fixing bolt 14 is detachably screwed with the inner side of the fixing nut 15. When multiple aluminum bar bodies 1 need to be connected, the clamping strip 8 and the limiting strip 9 of the adjacent left aluminum bar body 1 can be clamped into the clamping groove 11 and the limiting groove 13 of the right aluminum bar body 1, so that the corresponding first through grooves 10 and second through grooves 12 are aligned. Then, the fixing bolt 14 can be passed through the corresponding first through grooves 10 and second through grooves 12, and the protruding part of the fixing bolt 14 is fixed by screwing with the fixing nut 15 to form a stable connection.

[0026] It further includes a first marking strip 16 and a second marking strip 17. A set of second marking strips 17 are respectively arranged on one side of each embedding groove 2 at the front end of the aluminum bar body 1. A first marking strip 16 is arranged at one end of the front side of the front block fuse body 5. After the front block fuse body 5 is screwed and fixed, the first marking strip 16 and the corresponding second marking strip 17 can be aligned, so as to judge that the screwing is in place and improve convenience.

[0027] It further includes an information engraving 18. The information engraving 18 is arranged on the upper right side of the front end of the aluminum bar body 1. Through the information engraving 18, the information of this structure can be displayed, which is convenient for distinguishing and confirming use and improves convenience.

[0028] In summary, when a fusing current-limiting aluminum bar structure is in use, the information of this structure can be displayed through the information engraving 18 for distinguishing and confirming use. When multiple aluminum bar bodies 1 need to be connected, the clamping strip 8 and the limiting strip 9 of the adjacent left aluminum bar body 1 can be clamped into the clamping groove 11 and the limiting groove 13 of the right aluminum bar body 1, so that the corresponding first through grooves 10 and second through grooves 12 are aligned. Then, the fixing bolt 14 can be passed through the corresponding first through grooves 10 and second through grooves 12, and the protruding part of the fixing bolt 14 is fixed by screwing with the fixing nut 15 to form a stable connection. The external thread fuse body 4 corresponds to a set of internal thread rings 3. By applying a screwdriver to the screwing groove 6, the external thread fuse body 4 can be rotated backward and screwed into the inner side of the internal thread ring 3. After the front block fuse body 5 is screwed and fixed, the first marking strip 16 and the corresponding second marking strip 17 can be aligned to judge that the screwing is in place. Then, the front block fuse body 5 is placed on the front side of the embedding groove 2 and elastically supported by the anti-loosening washer 7 to generate circumferential fixation of the front block fuse body 5 and the external thread fuse body 4 to prevent screwing loosening. When in use, the front block fuse body 5 and the external thread fuse body 4 can be preferentially melted at high temperature to protect the circuit.

[0029] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A fusible current-limiting aluminum busbar structure, characterized in that, It includes an aluminum bar body (1), a groove (2), an internal thread ring (3), an external thread fuse body (4), a front block fuse body (5) and a lock washer (7). Multiple groups of grooves (2) are provided on the aluminum bar body (1). The rear sides inside each group of grooves (2) are respectively connected to the outer sides of a group of internal thread rings (3). The front end of the external thread fuse body (4) is connected to the middle of the rear end of the front block fuse body (5). The outer side of the rear part of the front block fuse body (5) is connected to the front side of the lock washer (7).

2. The fuseable current-limiting aluminum busbar structure according to claim 1, characterized in that: It further includes a screwing groove (6). A screwing groove (6) is provided in the middle of the front side of the front block fuse body (5).

3. The fuseable current-limiting aluminum busbar structure according to claim 1, characterized in that: It further includes a clamping bar (8), a limiting bar (9), a first through groove (10), a clamping groove (11), a second through groove (12), a limiting groove (13), a fixing bolt (14) and a fixing nut (15). The right side of the aluminum bar body (1) is connected to the left side of the clamping bar (8). The right side of the clamping bar (8) is connected to the middle of the left side of the limiting bar (9). A group of first through grooves (10) are respectively provided on the upper and lower sides of the clamping bar (8). A clamping groove (11) is provided on the outer part of the left side of the aluminum bar body (1). A group of second through grooves (12) are respectively provided on the upper and lower sides of the clamping groove (11) on the aluminum bar body (1). A limiting groove (13) is provided on the right side of the clamping groove (11) on the aluminum bar body (1). The outer side of the fixing bolt (14) is detachably screwed to the inner side of the fixing nut (15).

4. A fusible current-limiting aluminum busbar structure according to claim 1, characterized in that: It further includes a first marking strip (16) and a second marking strip (17). A group of second marking strips (17) are respectively provided on one side of each group of grooves (2) at the front end of the aluminum bar body (1). A first marking strip (16) is provided at one end of the front side of the front block fuse body (5).

5. A fusible current-limiting aluminum busbar structure according to claim 1, characterized in that: It further includes information engraving (18). Information engraving (18) is provided on the upper right side of the front end of the aluminum bar body (1).

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