CN207765717U - A wire connection plug with overcurrent protection - Google Patents

Abstract

The utility model discloses a take overcurrent protection's electric wire connecting plug, which comprises a housin, the casing lower extreme is equipped with prevents a cover, prevent rolling over and sheathe in and be equipped with the recess, prevent being equipped with the cable conductor in the cover, the casing middle part is equipped with the mounting groove, the outside of mounting groove is equipped with the visor, the lower part in the mounting groove is equipped with the fixed orifices, the fixed orifices top is equipped with insulating seat. The utility model discloses visor, mounting groove, insulating seat, terminal, overcurrent circuit breaker that add constitute detachable overcurrent protection device, and the parallelly connected overcurrent protection device's of three protective tubes of group connected mode, the producer is when different electrical apparatus installation plugs, only need install the protective tube of different quantity can, simultaneously, the consumer is in the in-service use electrical apparatus in-process, because when the protective tube burns out appears in extreme situation, can change by oneself and need not reprocess, it is very convenient to operate, do not need the professional to accomplish installation and change.

Description

A wire connection plug with overcurrent protection

technical field

The utility model relates to the technical field of plugs, in particular to an electric wire connection plug with overcurrent protection.

Background technique

At present, most of the leakage protection plugs sold in the market can only protect the leakage current, and cannot provide good protection for short circuit or abnormal current caused by electrical product failure. There are also plugs with over-current protection on the market, but due to the relatively simple control of the maximum current, low-power appliances and high-power appliances cannot share the same plug. For appliances with different powers, they need to be tailored, and the adaptability is not enough. wide.

After retrieval, the utility model authorization announcement number is CN 202616538 U, which discloses an overcurrent protection leakage protection plug, including a plug shell, a phase, zero, and ground three-pole copper plug, and a zero-sequence current transformer set between the phase and zero wires. , a zero-sequence current transformer, a test circuit, an amplifying circuit, a free release and a silicon controlled rectifier arranged on the ground wire, wherein the plug is also provided with an overcurrent protection circuit.

Most of the plugs on the market do not have current-limiting protection settings. In areas with a lot of lightning, household appliances may be damaged by lightning because they are not pulled out in time, but a small number of them have adopted over-current protection. However, due to the relatively single control of the maximum current, low-power electrical appliances and high-power electrical appliances cannot share the same plug. For electrical appliances with different powers, they need to be tailored, and the adaptability is not wide enough. Aiming at the above problems, a design is now made. A wire connection plug with overcurrent protection.

Utility model content

The purpose of this utility model is to provide a wire connection plug with over-current protection, which has the advantages of over-current protection function and quick replacement of the fuse, and solves the problem that plugs on the market usually do not have current-limiting protection settings, and in areas with more lightning , Because household electrical appliances are not pulled out in time, the electrical appliances are damaged by lightning from time to time. There are also plugs with over-current protection on the market, but due to the relatively simple control of the maximum current, low-power electrical appliances and high-power Electrical appliances cannot share the same plug. For electrical appliances with different powers, they need to be customized, and the adaptability is not wide enough.

An electric wire connection plug with overcurrent protection according to an embodiment of the present invention includes a housing, an anti-folding sleeve is provided at the lower end of the housing, and a groove is provided on the anti-folding sleeve, and inside the anti-folding sleeve A cable is provided, an installation slot is provided in the middle of the housing, a protective cover is provided outside the installation slot, a fixing hole is provided in the lower part of the installation slot, and an insulating seat is provided above the fixing hole. The upper and lower ends of the insulating seat are provided with three fuse connection slots, and each of the fuse connection slots is provided with a terminal, and the terminal is provided with an overcurrent breaking device, and the upper end of the housing is provided with a conductive pin.

Further, the number of the conductive pins is one, and the conductive pins are electrically connected to the upper terminal through wires.

Further, the overcurrent breaking device includes a glass tube, insulating sleeves are provided at both ends of the glass tube, copper sheets are provided outside the two insulating sleeves, and a fuse is provided between the two copper sheets. The above-mentioned fuse runs through the insulating sleeve.

Further, each of the copper sheets is electrically connected to the terminal on its outer side.

Further, the cable is electrically connected to the terminal post at the lower end through a wire.

Further, the insulating base is integrally formed with the casing, and the protective cover is fixed on the casing by fixing screws.

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

1. The detachable overcurrent protection device is composed of the added protective cover, installation groove, insulating seat, terminal post and overcurrent circuit breaker, and the connection mode of the overcurrent protection device with three groups of insurance tubes connected in parallel, the manufacturer is different for different electrical appliances. When installing the plug, you only need to install different numbers of fuses. At the same time, consumers can replace the fuses by themselves without repairing when they burn out due to extreme conditions during the actual use of electrical appliances. The operation is very convenient and does not require professionals. Installation and replacement can be completed;

2. The overcurrent circuit breaker composed of added glass tube, insulating sleeve, copper sheet and fuse can be used by the manufacturer when assembling and producing electrical appliances of different powers, with the same type of plug and different types of overcurrent protection devices, depending on the electrical appliances. The power and the maximum current that the internal electronic components can withstand are put in different power fuses. Under abnormal conditions, when the fuse burns out, consumers do not need to repair it, just replace the fuse by themselves, making maintenance and installation more convenient.

Description of drawings

The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, and are used to explain the utility model together with the embodiments of the utility model, and do not constitute a limitation to the utility model. In the attached picture:

Fig. 1 is a left view structural diagram of a wire connection plug with overcurrent protection proposed by the utility model.

FIG. 2 is an enlarged view of a local structure of area A in FIG. 1 .

Fig. 3 is a front structural diagram of a wire connection plug with overcurrent protection proposed by the utility model.

In the figure: 1-housing, 2-anti-folding sleeve, 3-groove, 4-cable, 5-protective cover, 6-installation slot, 7-insulation seat, 8-terminal, 9-overcurrent circuit breaker , 10-conductive pin, 11-fixing hole, 12-glass tube, 13-insulation sleeve, 14-copper sheet, 15-fuse, 16-fuse connection groove.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Referring to Figures 1-3, a wire connection plug with overcurrent protection includes a housing 1, an anti-folding sleeve 2 is provided at the lower end of the housing 1, a groove 3 is provided on the anti-folding sleeve 2, and an anti-folding sleeve 2 is provided with a There is a cable 4, the middle part of the housing 1 is provided with a mounting groove 6, the outside of the mounting groove 6 is provided with a protective cover 5, the lower part of the mounting groove 6 is provided with a fixing hole 11, and an insulating seat 7 is arranged above the fixing hole 11. The upper and lower ends of 7 are provided with three fuse connection grooves 16, each fuse connection groove 16 is provided with a terminal 8, the terminal 8 is provided with an overcurrent breaker 9, and the upper end of the housing 1 is provided with a conductive pin 10.

The number of conductive pins 10 is 2-3, and the conductive pins 10 are electrically connected to the upper terminal 8 through wires; the overcurrent breaking device 9 includes a glass tube 12, and the two ends of the glass tube 12 are provided with insulating sleeves 13, two insulating sleeves Copper sheet 14 is arranged on the outer side of 13, and a fuse 15 is arranged between the two copper sheets 14, and the fuse 15 runs through the insulating sleeve 13; each copper sheet 14 is electrically connected to the terminal post 8 on its outer side; the cable 4 passes through the wire and the lower end The terminal post 8 is electrically connected; the insulating seat 7 is integrally formed with the housing 1 , and the protective cover 5 is fixed on the housing 1 by fixing screws.

When in use, the protective cover 5, the installation groove 6, the insulating seat 7, the terminal post 8, and the overcurrent breaking device 9 added to the device form a detachable overcurrent protection device, and the connection of the overcurrent protection device with three groups of insurance tubes connected in parallel In this way, manufacturers only need to install different numbers of fuses when installing plugs for different electrical appliances. At the same time, consumers can replace them without repairing when the fuses burn out due to extreme conditions during the actual use of electrical appliances, and the operation is very convenient. It is convenient and can be installed and replaced without professionals; the overcurrent circuit breaker 9 composed of glass tube 12, insulating sleeve 13, copper sheet 14 and fuse 15 can be used by manufacturers when assembling and producing electrical appliances of different power The same type of plug and different types of overcurrent protection devices 9 are put into different power fuses 15 according to the different powers of electrical appliances and the maximum current that the internal electronic components can withstand. Under abnormal conditions, when the fuse burns out, the consumer No need to repair, just replace the fuse by yourself, which makes maintenance and installation more convenient.

The parts of the utility model that are not described in detail are the known techniques of those skilled in the art.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. A wire connection plug with overcurrent protection, characterized in that it includes a housing (1), the lower end of the housing (1) is provided with an anti-folding sleeve (2), and the upper end of the anti-folding sleeve (2) is There is a groove (3), the anti-folding sleeve (2) is provided with a cable (4), the middle part of the housing (1) is provided with an installation groove (6), and the outside of the installation groove (6) There is a protective cover (5), the lower part of the installation groove (6) is provided with a fixing hole (11), and an insulating seat (7) is arranged above the fixing hole (11), and the insulating seat (7) Three fuse connection slots (16) are provided at the upper and lower ends, each of the fuse connection slots (16) is provided with terminal posts (8), and an overcurrent circuit breaker is provided between the terminal posts (8) (9), the upper end of the casing (1) is provided with conductive pins (10). 2. A wire connection plug with overcurrent protection according to claim 1, characterized in that: the number of the conductive pins (10) is 2-3, and the conductive pins (10) are connected to the upper end by the wire The terminal post (8) is electrically connected. 3. A wire connection plug with overcurrent protection according to claim 1, characterized in that: the overcurrent breaking device (9) includes a glass tube (12), and both ends of the glass tube (12) are An insulating sleeve (13) is provided, copper sheets (14) are provided on the outside of the two insulating sleeves (13), and a fuse (15) is provided between the two copper sheets (14), and the fuse (15) Through the insulating sleeve (13). 4. The wire connection plug with overcurrent protection according to claim 3, characterized in that: each of the copper sheets (14) is electrically connected to the terminal post (8) on its outer side. 5. The wire connection plug with overcurrent protection according to claim 1, characterized in that: the cable (4) is electrically connected to the lower terminal (8) through a wire. 6. A wire connection plug with overcurrent protection according to claim 1, characterized in that: the insulating seat (7) is integrally formed with the housing (1), and the protective cover (5) is fixed by a screw fixed on the housing (1).