Overload protection device of electrical component

Abstract

The utility model relates to the technical field of circuit protection, and discloses an overload protection device of an electrical component, which comprises a shell, a side cover used for sealing is fixedly mounted on one side of the shell, a support used for supporting is fixedly mounted in the shell, a fusion tube used for protection is fixedly mounted at the top of the support, and the fusion tube is fixedly mounted on the other side of the shell. One side of the fusion tube is fixedly provided with an end cover used for protection. According to the overload protection device of the electrical component, the installation and maintenance processes are simplified in the using process of the device through the matched arrangement of the shell and the support, a user can open the device through the arrangement of the shell and the detachable design, internal components can be checked, cleaned or replaced, and therefore the overload protection device is convenient to use through the arrangement of the support. The stability and the safety of the internal components in the maintenance process are improved, looseness or displacement of the internal components caused by external force in the maintenance process is reduced, and therefore potential safety hazards are effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit protection technical field, concretely is an overload protection device of electrical component. BACKGROUND

[0002] With the rapid development and wide application of electrical technology, electrical system plays an important role in various industrial, commercial and civil fields, however, electrical components may produce overload phenomenon when working for a long time or bearing excessive load, leading to abnormal increase of current, and further causing equipment damage, fire and other safety hazards, therefore, in order to ensure the safe operation of electrical system, it is necessary to design and install reliable overload protection device, when the load current exceeds the set current setting value, the overload protection device will automatically cut off the circuit to prevent the equipment from being damaged due to overcurrent, the overload protection device is widely used in various occasions requiring electrical protection, especially in the protection and monitoring of three-phase motor and other electrical equipment in mechanical, metallurgical, building material, chemical, textile and other industrial fields.

[0003] Chinese patent publication No. CN221899957U discloses an overload protection device for electrical equipment, which comprises a shell, a guide cylinder is arranged inside the shell, a guide column is vertically and slidingly installed at the top end of the guide cylinder through a bearing, an electromagnetic coil is arranged outside the guide cylinder, an electromagnetic driving structure is arranged inside the guide cylinder in cooperation with the guide column, an insulating mounting seat is arranged at the top of the guide column, a movable contact is installed on the insulating mounting seat, a static contact is arranged below the movable contact, an insulating sheet is arranged between the movable contact and the static contact, a moving driving structure is arranged between the insulating mounting seat and the insulating sheet, a first wiring terminal is arranged on one end of the shell electrically connected with the electromagnetic coil, a connecting line is arranged on the other end of the electromagnetic coil connected with the movable contact, a second wiring terminal is arranged on the other end of the shell electrically connected with the static contact, the overload protection device has good overload protection performance for electrical equipment, less loss, and good safety protection effect.

[0004] However, the utility model has the following problems in actual use:

[0005] The electromagnetic coil generates an electromagnetic field when working during use of the utility model, and the overload protection device is often arranged in an electrical box, which may cause certain electromagnetic interference to other electrical equipment, and the installation and maintenance process of the device is more complicated, increasing the operation difficulty and time cost, and it is difficult to maintain and replace after an accident. UTILITY MODEL CONTENTS

[0006] (I) Technical problems solved

[0007] In order to overcome the above-mentioned defects of the prior art, the utility model provides an overload protection device for electrical components, which solves the problems in the prior art that:

[0008] The electromagnetic coil generates an electromagnetic field during operation, and the overload protection device is usually arranged in an electric box, which may cause electromagnetic interference to other electrical equipment, and the installation and maintenance process of the device is more complicated, increasing the operation difficulty and time cost, and it is difficult to maintain and replace after an accident.

[0009] (II) Technical solutions

[0010] To achieve the above object, the utility model discloses the following technical scheme: an overload protection device of electrical component, including the casing, the side fixed mounting of casing is used for closing the side cover, the inside fixed mounting of casing is used for supporting the support, the top fixed mounting of support is used for protecting the fuse tube, the side fixed mounting of fuse tube is used for protecting the end cover.

[0011] As a further scheme of the utility model, the inner wall of the shell is fixedly installed with a clamping seat for limiting, and the other side of the shell is fixedly connected with a locking piece for limiting.

[0012] As a further scheme of the utility model, one side of the clamping seat is fixedly connected with a plug for connection, and one side of the clamping seat is provided with a through hole for limiting.

[0013] As a further scheme of the utility model, one side of the side cover is fixedly installed with a hinge for connection, and the other side of the side cover is fixedly installed with a buckle for locking.

[0014] As a further scheme of the utility model, one side of the support is fixedly connected with a fastening piece for limiting, and the other side of the support is fixedly connected with a clasp ring for limiting.

[0015] As a further scheme of the utility model, one side of the fuse tube is provided with a threaded hole for limiting, and the other side of the fuse tube is provided with a limiting hole.

[0016] As a further scheme of the utility model, the inside of the limiting hole is inserted with a fuse body, and both sides of the fuse body are electrically connected with a contact blade for conducting electricity.

[0017] As a further scheme of the utility model, one side of the end cover is provided with a positioning hole, and the inside of the positioning hole is inserted with a bolt for positioning.

[0018] (III) Beneficial effects

[0019] The utility model provides an overload protection device of electrical component has the following beneficial effects:

[0020] The overload protection device of the electrical component, through the cooperation of the shell and the support, simplifies the installation and maintenance process during use, through the setting of the shell, the detachable design enables the user to open the device and check, clean or replace the internal components, and further through the setting of the support, the stability and safety of the internal components during maintenance are improved, the loosening or displacement of the internal elements due to external force during maintenance is reduced, thereby effectively reducing the potential safety hazard. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the utility model.

[0026] In the figure: 1, shell; 2, side cover; 3, support; 4, melting pipe; 5, end cover; 6, card seat; 7, locking piece; 8, plug; 9, through hole; 10, hinge; 11, buckle; 12, fastening piece; 13, clasp ring; 14, threaded hole; 15, limiting hole; 16, melt; 17, contact knife; 18, positioning hole; 19, bolt. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] Embodiment one:

[0029] Please refer to Figure 3 and Figure 4 The utility model provides a kind of technical scheme: an overload protection device of electrical component, to make device easy to maintain and replace during use, it is provided with shell 1 and support 3;

[0030] Including the shell 1, the inside of the shell 1 is fixedly installed for supporting the support 3, the inner wall of the shell 1 is fixedly installed for limiting the clamping seat 6, the other side of the shell 1 is fixedly connected for limiting the locking piece 7, one side of the clamping seat 6 is fixedly connected for connecting the plug 8, one side of the clamping seat 6 is provided with a through hole 9 for limiting, one side of the support 3 is fixedly connected for limiting the fastening piece 12, the other side of the support 3 is fixedly connected for limiting the clamping ring 13, therefore, in the using process, through the setting of the clamping seat 6, the fuse tube 4 and the external circuit are electrically connected, and through the setting of the locking piece 7, the shell 1 can be fixedly installed in the inside of the electric box or the electrical component, and then through the setting of the plug 8, it can be used for inserting the external circuit, and through the setting of the through hole 9, the clamping seat 6 and the shell 1 can be tightly connected, and the stability of the device is improved.

[0031] Example two:

[0032] Please refer to Figure 5 In order to make the device cut off the circuit when the electrical equipment is overloaded during use, the fuse tube 4 is arranged;

[0033] The top of the support 3 is fixedly installed for protecting the fuse tube 4, one side of the fuse tube 4 is provided with a threaded hole 14 for limiting, the other side of the fuse tube 4 is provided with a limiting hole 15, the inside of the limiting hole 15 is inserted with a fuse body 16, both sides of the fuse body 16 are electrically connected with a contact blade 17 for conducting electricity, therefore, in the using process, through the setting of the threaded hole 14, the end cover 5 and the fuse tube 4 can be tightly connected, and the sealing property of the fuse tube 4 is ensured, through the setting of the limiting hole 15, the fuse body 16 is limited, and the connection between the fuse body 16 and the external circuit is facilitated, and then through the setting of the fuse body 16, the circuit can be cut off when the electrical component is overloaded, so as to protect the entire electrical system from being damaged, and through the setting of the contact blade 17, the fuse body 16 is connected with the external circuit.

[0034] Example three:

[0035] Please refer to Figure 1 And Figure 2 In order to improve the safety and practicability of the device, the side cover 2 and the end cover 5 are arranged;

[0036] The shell 1 is fixedly installed with a side cover 2 for closing on one side, the side cover 2 is fixedly installed with a hinge 10 for connecting on one side, the side cover 2 is fixedly installed with a buckle 11 for locking on the other side, the end cover 5 is provided with a positioning hole 18 on one side, and the positioning hole 18 is inserted with a bolt 19 for positioning, so that the side cover 2 can rotate around the shell 1 through the setting of the hinge 10 in the use process, and then the side cover 2 is locked through the setting of the buckle 11, so as to prevent it from being opened accidentally, and the fuse tube 4 and the end cover 5 can be tightly connected through the setting of the positioning hole 18 and the bolt 19, so as to improve the sealing performance and safety of the device.

[0037] The electrical components in this article are all connected with the main controller and 220V mains electricity, and the main controller can be a conventional known device such as a computer.

[0038] In the utility model, the working steps of the device are as follows:

[0039] First, the wire of the external circuit is inserted into the plug 8 to realize electrical connection, at the same time, the shell 1 is fixedly installed in the inside of the electric box or the electrical component by using the locking piece 7, so as to ensure that the device is stable and reliable, then the fuse tube 4 is fixedly installed on the top of the support 3, so as to ensure that the position of the fuse tube 4 is correct and stable, then when the electrical component is overloaded, the current increases, so that the fuse 16 generates heat and is fused, at this time, the circuit is cut off, and the electrical component stops working, so as to protect the whole electrical system from being damaged, finally, after the fuse 16 is fused, the user can easily take out the fused fuse tube 4 and replace it with a new fuse tube 4 by opening the side cover 2 and the end cover 5, and then the side cover 2 is reclosed to restore the normal use of the device.

[0040] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An overload protection device for an electrical component comprising a housing (1), characterized in that: One side of the shell (1) is fixedly installed with a side cover (2) for closing, the inside of the shell (1) is fixedly installed with a support (3) for supporting, the top of the support (3) is fixedly installed with a melting pipe (4) for protecting, one side of the melting pipe (4) is fixedly installed with an end cover (5) for protecting.

2. An overload protection device for an electrical component according to claim 1, characterised in that: The inner wall of the shell (1) is fixedly installed with a clamping seat (6) for limiting, the other side of the shell (1) is fixedly connected with a locking piece (7) for limiting.

3. An overload protection device for an electrical component according to claim 2, characterised in that: One side of the clamping seat (6) is fixedly connected with a plug (8) for connecting, one side of the clamping seat (6) is provided with a through hole (9) for limiting.

4. An overload protection device for an electrical component according to claim 1, wherein: One side of the side cover (2) is fixedly installed with a hinge (10) for connecting, the other side of the side cover (2) is fixedly installed with a buckle (11) for locking.

5. An overload protection device for an electrical component according to claim 1, wherein: One side of the support (3) is fixedly connected with a fastening piece (12) for limiting, the other side of the support (3) is fixedly connected with a clasp ring (13) for limiting.

6. An overload protection device for an electrical component according to claim 1, wherein: One side of the melting pipe (4) is provided with a threaded hole (14) for limiting, the other side of the melting pipe (4) is provided with a limiting hole (15).

7. An overload protection device for an electrical component according to claim 6, characterised in that: The inside of the limiting hole (15) is inserted with a melt (16), both sides of the melt (16) are electrically connected with a contact knife (17) for conducting electricity.

8. An overload protection device for an electrical component according to claim 1, wherein: One side of the end cover (5) is provided with a positioning hole (18), the inside of the positioning hole (18) is inserted with a bolt (19) for positioning.

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