CN210040803U

CN210040803U - Improved multifunctional power strip

Info

Publication number: CN210040803U
Application number: CN201921241347.XU
Authority: CN
Inventors: 黄华道
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-02-07
Anticipated expiration: 2029-08-02

Abstract

The utility model provides an improved generation multifunctional power supply row of inserting, its characterized in that: it also includes a mounting frame and a protective cover; each component forming the power strip tripping mechanism is accommodated in the mounting frame, and the position of each component is fixed; the mounting frame is fixed on the circuit board with the leakage protection function; the protective cover covers the mounting frame and is clamped on the circuit board with the leakage protection function through the clamping hook. It also includes two quick tripping springs; the quick tripping spring is positioned above the live wire and zero line moving contact pieces of the power supply, one end of the quick tripping spring is sleeved on the salient points at the two ends of the power strip release, and the other end of the quick tripping spring is propped against the lower part of the protective cover. It also includes power live wire, zero line, earth wire metal conductive band; the power live wire and the zero line on the circuit board with the leakage protection function are connected with the power live wire and the zero line on the USB interface circuit board through metal conductive belts of the power live wire and the zero line. The utility model discloses rational in infrastructure, each unit mount is firm, power row's job stabilization is reliable.

Description

Improved multifunctional power strip

Technical Field

The utility model relates to an improved multifunctional power strip with leakage and overload protection functions and USB socket.

Background

With the increasing of household and unit electric appliance products, the power socket position in the wall is fixed and can not move, and the quantity is limited, so that each household and unit has a plurality of power socket banks, and the power socket banks can lead out the power supply in the wall as required to provide power for each electric appliance.

At present, power strip in the market is various, and some simple power strips do not have any electric leakage and overload protection function, some have electric leakage and overload protection function, some still be equipped with USB socket on power strip and conveniently provide the power for the electrical apparatus through the USB socket.

The ubiquitous problem of the power strip on the market is: the function is single, the natural structure is simple, and the service life is long; the functions are multiple, the structure is complex, and the service life is short. Because the manufacturing industry of the power strip continuously pursues the multifunction of the product, and the internal space of the power strip is limited, some components in the power strip are unreasonably designed, the components are not firmly assembled, some functions of the power strip are invalid after the power strip is used for a period of time, but the power strip still has power output, and the power strip is misled to a consumer to use. For example, a reset button is usually disposed on a power strip with a leakage protection function, when the power strip does not have the leakage protection function, the reset button cannot be pressed, and the power strip should have no power output.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides an improved multifunctional power strip with USB socket having leakage and overload protection functions. The power strip has the advantages of compact structure, firm assembly of all components and long service life.

In order to achieve the above purpose, the utility model adopts the following design scheme: an improved multifunctional power strip comprises an upper cover, a middle frame and a base; the surface of the upper cover is provided with a power supply jack, a USB jack, a hole for installing a reset button and a hole for installing a test button; a jack baffle and a USB jack baffle are arranged below the power jack and the USB jack of the upper cover, and the jack baffle and the USB jack baffle are accommodated in the middle frame; a circuit board with a leakage protection function and a USB socket circuit board are arranged between the middle frame and the base, and the circuit boards are accommodated at two ends in the middle frame; the middle frame is stacked above the base; the method is characterized in that: it also includes a mounting frame and a protective cover;

each component forming the power strip tripping mechanism is accommodated in the mounting frame, and the position of each component is fixed;

the mounting frame is fixed on the circuit board with the leakage protection function;

the protective cover covers the mounting frame and is clamped on the circuit board with the electric leakage protection function through the clamping hook.

The improved multifunctional power strip of the utility model also comprises two rapid tripping springs; the quick tripping spring is positioned above the live wire movable contact piece and the power zero line movable contact piece of the power supply, one end of the quick tripping spring is sleeved on the salient points at the two ends of the power strip release, and the other end of the quick tripping spring is propped against the lower part of the protective cover.

The utility model discloses row is inserted to improved generation multifunctional power supply, with the linkage of multifunctional power supply row reset button, be located the bottom of the round pin that resets of reset button below flat.

The improved multifunctional power strip of the utility model also comprises a power supply live wire metal conductive belt, a power supply zero line metal conductive belt and a power supply ground wire metal conductive belt;

the power supply live wire metal conductive band, the power supply zero line metal conductive band and the power supply ground wire metal conductive band are accommodated in the middle frame, and power supply plug bushes are arranged on the metal conductive bands and correspond to the power supply jacks on the upper cover;

one end of the power supply live wire metal conductive belt, the power supply zero line metal conductive belt and the power supply ground wire metal conductive belt which are accommodated in the middle frame are respectively connected with the power supply live wire, the zero line and the ground wire which are accommodated in the middle frame and are arranged on the circuit board with the leakage protection function; the other ends of the power live wire metal conductive belt and the power zero line metal conductive belt are respectively connected with the power live wire and the power zero line on the USB interface circuit board.

The utility model discloses rational in infrastructure, each unit mount is firm, power row's job stabilization is reliable.

Drawings

Fig. 1 is a schematic exploded view of the present invention;

fig. 2 is an exploded view of the present invention 1;

fig. 3 is an exploded view of the present invention 2;

fig. 4A is a schematic view of the front structure of the protective cover of the present invention;

fig. 4B is a schematic view of the back structure of the protective cover of the present invention;

FIG. 5 is a schematic structural view of the mounting frame of the present invention;

fig. 6 is a schematic structural diagram of the trip device of the present invention.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples. It should be noted that various modifications can be made to the embodiments disclosed herein, and therefore, the embodiments disclosed in the specification should not be considered as limitations of the present invention, but merely as exemplifications of the embodiments, which are intended to make the features of the present invention apparent.

As shown in fig. 1, the utility model provides an improved generation multifunctional power strip includes upper cover 1, center 2, base 3. The surface of the upper cover 1 is provided with a three-hole power jack 11, a two-hole power jack 12, a jack 13 for leaking a USB socket, a hole 14 for installing a reset button and a hole 15 for installing a test button. A three-hole jack baffle plate 21, a two-hole jack baffle plate 22 and a USB socket baffle plate 23 are arranged below the three-hole power jack 11, the two-hole power jack 12 and the USB jack 13 of the upper cover and are accommodated in a groove 24 of the middle frame 2 corresponding to the power jack of the upper cover 1. A circuit board 31 with a leakage protection function and a USB socket circuit board 32 are arranged between the middle frame 2 and the base 3, and the

circuit boards

31 and 32 are located above the base 3 and accommodated in the middle frame 2.

In a power supply socket having a leakage protection function and an overload protection function, which was developed by the present inventors, a trip mechanism is designed, and when a leakage current or an overload occurs in a circuit to which power is supplied by the power supply socket, and a TEST button (TEST button) is pressed to simulate the generation of the leakage current, the trip mechanism operates to cause a RESET button (RESET button) to jump up, thereby cutting off the power supply output of the power supply socket and stopping the power supply. As shown in fig. 2 and 3, the trip mechanism 4 includes a trip unit 41 with a longitudinal through hole in the middle, a spring 42, a latch 43 with a through hole on the top, a push rod 44, a trip coil, and a magnetic ring for sensing leakage current/overload current. In the conventional design, the components constituting the tripping mechanism are arranged in the middle frame 2, and after the tripping mechanism is used for a period of time, the functions are unreliable due to the position movement of some components, so that as shown in fig. 2, 3 and 5, the invention designs an integrated mounting frame 5, and each component constituting the tripping mechanism is accommodated in the mounting frame 5, so that the positions of each component are always fixed, and the position deviation is avoided, thereby ensuring the stability and the reliability of the leakage protection function and the overload protection function of the power strip. The trip coil is wound at position 51 of the mounting frame and the magnetic ring sensing the leakage/overload current is placed at position 52 of the mounting frame 5. The release 41, the spring 42, the latch 43 and the push rod 44 are combined and accommodated at a position 53 of the mounting frame.

In a specific embodiment of the present invention, the trip coil may be directly wound at the location 51 of the mounting frame.

The release tab 61 below the test button 6 is received at the insertion hole 54 of the mounting frame 5. One ends of a power live wire moving contact 20L and a power zero wire moving contact 20N are inserted into the jacks 5-20L and 5-20N of the mounting frame 5, and through holes 20L-1 and 20N-1 on the other ends are sleeved on the salient points 411 at the two ends of the release 41 shown in figure 6. One ends of the power live wire static contact piece 2L and the power zero line static contact piece 2N are inserted into the jacks 5-2L and 5-2N of the mounting frame 5, and the other ends are suspended above the movable contacts of the power live wire movable contact piece 20L and the power zero line movable contact piece 20N.

The mounting frame 5 accommodating a plurality of components is fixed to the circuit board 31 having the earth leakage protection function.

As shown in fig. 2, fig. 3, fig. 4A and fig. 4B, a protection cover 7 is further disposed above the mounting frame 5. The protective cover 7 serves to fix the positions of the respective components mounted in the mounting frame 5 so as not to be displaced, and to fix the other components constituting the power strip. As shown, the reset button 8 is accommodated in the groove 71 on the front surface of the protective cover 7, and the reset pin 81 below the reset button 8 is accommodated in the groove 72 on the front surface of the protective cover 7; the test button 6, the trip plate 61 and the spring 62 below the test button are accommodated in the groove 73 on the front surface of the protective cover 7, and one end of the trip plate 61 passes through the protective cover 7 and is fixed at the insertion hole 54 of the mounting frame 5 shown in fig. 5. After the components of the trip mechanism 4 are mounted and fixed in the mounting frame 5, the protective cover 7 covers the mounting frame 5, and the hooks 74 protruding from the side surface of the protective cover 7 are engaged with the engaging grooves of the circuit board 31, thereby further fixing the components mounted in the mounting frame 5 and the components mounted in the protective cover 7.

In order to ensure that the reset button cannot be reset after the earth leakage protection function and the overload protection function of the power strip are disabled, as shown in fig. 2 and 3, the bottom of the reset pin 81 located below the reset button and linked with the reset button 8 is flat instead of tapered.

In the embodiment of the present invention, the reset pin 81 passes through the through hole 75 of the protective cover 7 and abuts against the top surface of the latch 43, and is in a state waiting for reset.

In addition, when the power strip normally works and/or there is no power output, the live wire moving contact 20L, the power zero line moving contact 20N frequently contact and disconnect with the live wire static contact 2L and the power zero line static contact 2N, and in the process of frequent contact and disconnection of the moving

contacts

20L, 20N with the static contacts 2L, 2N, sparks are generated, which accelerate the damage of the contacts and shorten the service life of the power strip, as shown in fig. 2, 3, 6, the invention is provided with two fast tripping springs 9, one end of the fast tripping spring 9 is positioned above the live wire moving contact 20L and the power zero line moving contact 20N, and is sleeved on the salient points 411 at the two ends of the tripper 41, the other end is abutted to the lower side of the tripper 7 as shown in fig. 4B, and the groove 76 at the back of the protective cover 7. Under the effect of the quick tripping spring 9, the power live wire movable contact piece 20L and the power zero line movable contact piece 20N can be quickly disconnected with the power live wire static contact piece 2L and the power zero line static contact piece 2N, so that the generation of sparks is reduced, the damage of contacts on the movable contact piece and the static contact piece is avoided, and the service life of the power strip is prolonged.

As shown in fig. 2 and fig. 3, the invention is further provided with a power supply live wire metal conductive strip L1, a power supply neutral wire metal conductive strip N1 and a power supply ground wire metal conductive strip G1. The metal conductive strips L1, N1 and G1 are accommodated in the middle frame 2, and power supply plug bushes are arranged on the metal conductive strips and corresponding to the power supply jacks on the upper cover 1.

The circuit board 31 and the USB interface circuit board 32 with earth leakage protection function accommodated in the middle frame 2 are respectively positioned above the two ends of the base 3, one end L1-1, N1-1 and G1-1 of the metal conductive strips L1, N1 and G1 are connected with the live wire, the zero line and the ground wire of the power supply on the circuit board 31, the other end L1-2 and N1-2 of the metal conductive strips L1 and N1 are connected with the live wire and the zero line of the power supply on the circuit board 32, and the advantages of the connection mode are that: the problems of insufficient welding and functional failure of welding points after a lead connection mode is used for a period of time are solved, and the service life of the power strip is prolonged; moreover, the internal structure is safe, reliable, neat and beautiful.

Finally, it should be noted that: the above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. An improved multifunctional power strip comprises an upper cover, a middle frame and a base; the surface of the upper cover is provided with a power supply jack, a USB jack, a hole for installing a reset button and a hole for installing a test button; a jack baffle and a USB jack baffle are arranged below the power jack and the USB jack of the upper cover, and the jack baffle and the USB jack baffle are accommodated in the middle frame; a circuit board with a leakage protection function and a USB socket circuit board are arranged between the middle frame and the base, and the circuit boards are accommodated at two ends in the middle frame; the middle frame is stacked above the base; the method is characterized in that: it also includes a mounting frame and a protective cover;

2. The improved multi-functional power strip of claim 1, wherein: it also includes two quick tripping springs;

the quick tripping spring is positioned above the live wire movable contact piece and the power zero line movable contact piece of the power supply, one end of the quick tripping spring is sleeved on the salient points at the two ends of the power strip release, and the other end of the quick tripping spring is propped against the lower part of the protective cover.

3. The improved multi-functional power strip of claim 1, wherein: the bottom of the reset pin which is linked with the reset button of the multifunctional power strip and is positioned below the reset button is flat.

4. The improved multi-functional power strip of claim 1, wherein: the power supply device also comprises a power supply live wire metal conductive belt, a power supply zero line metal conductive belt and a power supply ground wire metal conductive belt;