CN214672444U

CN214672444U - Overload protection structure with external power-off indication function

Info

Publication number: CN214672444U
Application number: CN202120687151.4U
Authority: CN
Inventors: 傅群
Original assignee: Hangzhou Dongchan Temperature Control Equipment Co Ltd
Current assignee: Hangzhou Dongchan Temperature Control Equipment Co Ltd
Priority date: 2021-04-06
Filing date: 2021-04-06
Publication date: 2021-11-09
Anticipated expiration: 2031-04-06

Abstract

The utility model discloses an external outage indicating function overload protection structure with light indication alarming function after outage. It includes the protector shell, install pin one and pin two on the protector shell, inside and install the elasticity contact piece on it of protector shell is arranged in to pin one end, elasticity contact piece one end and pin one fixed connection, the elasticity contact piece other end is equipped with the contact that matches with pin two, the inside of protector shell is arranged in and the contact side is arranged in to pin two one end, protector shell outside is all arranged in to pin one other end and the two other ends of pin, install the switching device who is connected with the elasticity contact piece on the protector shell, install on the protector shell surface and take lamp PCBA, pin one and pin two all contact with taking lamp PCBA, install pin three on the protector shell, three one ends of pin and take lamp PCBA to contact, protector shell outside is arranged in to the three other ends of pin. The utility model has the advantages that: the power-off lamp light indication alarm function is achieved.

Description

Overload protection structure with external power-off indication function

Technical Field

The utility model belongs to the technical field of the relevant technique of circuit protection and specifically relates to indicate an external outage indicating function overload protection structure.

Background

Overload protection is an overload protection device that is added to prevent the main power line from being damaged by overheating due to overload. Overload is a broad term that can refer to an electrical device that is overloaded or to an object that is subjected to an excessive force. Protection against these "load" exceeding behaviors is collectively referred to as overload protection. In a communication power supply system, a function of automatically disconnecting power supply from a power supply device due to an excessive load is called overload protection. However, current overload protection devices lack a power down indication function.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an overcome not having the not enough of outage instruction function among the prior art, provide an external outage instruction function overload protection structure with outage back light instruction alarming function.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an overload protection structure with an external power failure indication function comprises a protector shell, wherein a first pin and a second pin are installed on the protector shell, an elastic contact piece is installed in the protector shell and on the elastic contact piece at one end of the first pin, one end of the elastic contact piece is fixedly connected with the first pin, a contact matched with the second pin is arranged at the other end of the elastic contact piece, one end of the second pin is arranged in the protector shell and on the side face of the contact, the other end of the first pin and the other end of the second pin are both arranged outside the protector shell, a switch device connected with the elastic contact piece is installed on the protector shell, a PCBA with a lamp is installed on the outer surface of the protector shell, the first pin and the second pin are both contacted with the PCBA with the lamp, a third pin is installed on the protector shell, one end of the third pin is contacted with the PCBA with the lamp, the other end of the pin III is arranged outside the protector shell.

And the first pin, the second pin and the third pin on the shell of the protector are respectively connected in the working circuit through leads. When the working circuit is in a normal state, the contact on the elastic contact piece and the pin II are in a contact state, the current sequentially passes through the pin I, the elastic contact piece and the pin II, and at the moment, the PCBA with the lamp is in a short circuit state and is in an off state; when the overload condition appears in the working circuit, the elastic contact piece is heated and deformed, the contact is automatically separated from the pin II, the current sequentially passes through the pin I, the PCBA with the lamp and the pin III, and the PCBA with the lamp is automatically lightened to prompt workers.

Preferably, the surface of protector shell is equipped with the PCBA mounting groove, take lamp PCBA to install the inside at the PCBA mounting groove, the opening part of PCBA mounting groove is equipped with the protection apron, protection apron and PCBA mounting groove joint. The installation and the dismantlement of taking lamp PCBA have been made things convenient for, have reduced the difficulty of later maintenance and maintenance. Wherein the material of protection apron is the printing opacity material, is convenient for the staff to observe.

Preferably, the surface of protector shell is equipped with the PCBA lamp shade, PCBA lamp shade and protector shell threaded connection, take lamp PCBA to install the inside at the PCBA lamp shade. The installation and the dismantlement of taking lamp PCBA have been made things convenient for, have reduced the difficulty of later maintenance and maintenance. Wherein the material of PCBA lamp shade is the printing opacity material, and the staff of being convenient for observes.

Preferably, connecting columns are fixed on the first pins and the second pins, the connecting columns penetrate through the shell of the protector and are arranged on the side face of the PCBA with the lamp, and a connecting device is arranged between the connecting columns and the PCBA with the lamp. Pin I and take between the lamp PCAB, take between lamp PCAB and the pin two all to establish ties through spliced pole and connecting device, simple structure, simple to operate.

Preferably, the connecting device comprises a connecting piece, one end of the connecting piece is fixed on the connecting column, a connecting piece clamping groove matched with the other end of the connecting piece is formed in the strip lamp PCBA, and the other end of the connecting piece is installed in the connecting piece clamping groove. The connection mode is simple and convenient, and the maintenance and the disassembly of the PCBA with the lamp are convenient.

Preferably, the connecting device comprises a connecting spring, one end of the connecting spring is fixed on the connecting column, a connecting spring groove matched with the other end of the connecting spring is formed in the strip lamp PCBA, and the other end of the connecting spring is installed in the connecting spring groove. The connection mode is simple and convenient, and the maintenance and the disassembly of the PCBA with the lamp are convenient.

As preferred, switching device includes the protector button, be equipped with on the protector shell with protector button assorted through-hole, the protector button arrange in the through-hole and with through-hole sliding connection, the outside of protector shell is arranged in to one of them end of protector button, the inside of protector shell and the side that is located the elasticity contact piece are arranged in to the other end of protector button, be fixed with on the lateral wall of the protector button other end with elasticity contact piece assorted kicking block, the same one side of protector button is all arranged in to kicking block and elasticity contact piece, one side of elasticity contact piece is arranged in to the through-hole, the opposite side of elasticity contact piece is arranged in to the kicking block, the tip of the protector button other end and the inside wall of protector shell are connected through reset spring. Under the natural state, reset spring has certain elasticity to the protector button, makes the protector button have the trend of popping out the through-hole, and the kicking block makes the protector button unable removal is blocked by the elasticity contact piece this moment. When the overload condition happens, the elastic contact piece is heated and deformed, breaks away from the top block, the clamping position of the top block is cancelled, the protector button pops out under the action of the reset spring, the top block moves to the side face of the elastic contact piece and props against the elastic contact piece, the elastic contact piece cannot be contacted with the second pin all the time, and the overload circuit is disconnected (if the top block does not exist, the shape of the elastic contact piece is recovered after being cooled, the elastic contact piece can be contacted with the second pin, and the overload circuit is connected again). After the overload circuit is processed, the worker only needs to press the button of the protector again.

Preferably, a protrusion is arranged on one surface, facing the pin II, of the elastic contact piece, the contact II is fixed on the end face of the protrusion, a turned edge matched with the protrusion is fixed on the outer side wall of the other end of the protector button, the turned edge is arranged on the side face of the protrusion, the turned edge and the top block are arranged on the same side of the elastic contact piece, and a transition inclined plane is arranged on the side face, facing the turned edge, of the protrusion. Through the cooperation of the transition inclined plane on the bulge and the flanging, the smoothness of the protector button in the moving process is improved.

Preferably, a protective sleeve matched with one end of the protector button is arranged on the outer surface of the protector shell, and the protective sleeve is installed at the opening of the through hole and is arranged on the outer side of the protector button. The protective sheath is hexagon nut, plays certain sealed effect to the protector shell, and is dustproof effectual.

As preferred, the tip of the protector button other end is equipped with the slider, be equipped with on the inside wall of protector shell with slider assorted spout, the slider arrange in the spout and with spout sliding connection, the protector button is fixed in one side of slider, the opposite side of slider be equipped with reset spring assorted spring mounting groove, reset spring installs in spring mounting groove, reset spring's one end and spring mounting groove's bottom surface contact, reset spring's the other end and the inside wall of protector shell contact. Through the design of slider and spout, played direction and spacing effect to the removal of protector button. Through the design of the spring mounting groove, the reset spring is convenient to mount on the sliding block.

The utility model has the advantages that: the power-off lamp has the functions of indicating and alarming after power is off; the installation and the disassembly are convenient, and the difficulty of later maintenance and repair is reduced; the dustproof effect is good.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a second embodiment of the present invention;

FIG. 3 is an internal structural view of a front view of the present invention;

fig. 4 is an internal structural view of a rear view of the present invention;

FIG. 5 is a front view of the protector button;

FIG. 6 is a rear view of the protector button;

fig. 7 is a schematic structural diagram of a third embodiment of the present invention;

fig. 8 is a schematic structural diagram of a fourth embodiment of the present invention;

fig. 9 is a schematic circuit diagram of the present invention.

In the figure: 1. the protection device comprises a protector shell, 2 parts of a protection cover plate, 3 parts of a first pin, 4 parts of a third pin, 5 parts of a second pin, 6 parts of a PCBA lampshade, 7 parts of a protection sleeve, 8 parts of a through hole, 9 parts of a protector button, 10 parts of an elastic contact piece, 11 parts of a top block, 12 parts of a sliding block, 13 parts of a spring installation groove, 14 parts of a reset spring, 15 parts of a flange, 16 parts of a bulge, 17 parts of a contact, 18 parts of a connecting piece, 19 parts of a PCBA with a lamp, 20 parts of a connecting column, 21 parts of a connecting spring and 22 parts of the PCBA installation groove.

Detailed Description

The invention is further described with reference to the accompanying drawings and the detailed description.

As shown in fig. 3, an overload protection structure with an external power failure indication function comprises a protector shell 1, wherein a first pin 3 and a second pin 5 are installed on the protector shell 1, one end of the first pin 3 is arranged in the protector shell 1 and is provided with an elastic contact piece 10, one end of the elastic contact piece 10 is fixedly connected with the first pin 3, as shown in fig. 7, the other end of the elastic contact piece 10 is provided with a contact 17 matched with the second pin 5, one end of the second pin 5 is arranged in the protector shell 1 and is arranged on the side surface of the contact 17, the other end of the first pin 3 and the other end of the second pin 5 are both arranged outside the protector shell 1, a switch device connected with the elastic contact piece 10 is installed on the protector shell 1, a PCBA19 with a lamp is installed on the outer surface of the protector shell 1, the first pin 3 and the second pin 5 are both contacted with a PCBA19 with a lamp, a third pin 4 is installed on the protector shell 1, one end of pin three 4 is in contact with the tape light PCBA19 and the other end of pin three 4 is disposed outside the protector housing 1.

In the embodiment shown in fig. 1, the PCBA mounting groove 22 is formed on the outer surface of the protector housing 1, the tape lamp PCBA19 is mounted inside the PCBA mounting groove 22, the protective cover plate 2 is arranged at the opening of the PCBA mounting groove 22, and the protective cover plate 2 is clamped with the PCBA mounting groove 22.

In the embodiment shown in fig. 2, the outer surface of the protector housing 1 is provided with a PCBA lampshade 6, the PCBA lampshade 6 is in threaded connection with the protector housing 1, and the tape light PCBA19 is mounted inside the PCBA lampshade 6.

As shown in fig. 7, a connecting column 20 is fixed on each of the first pin 3 and the second pin 5, the connecting column 20 penetrates through the protector housing 1 and is arranged on the side surface of the tape lamp PCBA19, and a connecting device is arranged between the connecting column 20 and the tape lamp PCBA 19.

In the embodiment shown in fig. 7, the connecting device comprises a connecting piece 18, one end of the connecting piece 18 is fixed on the connecting column 20, a connecting piece clamping groove matched with the other end of the connecting piece 18 is arranged on the strip lamp PCBA19, and the other end of the connecting piece 18 is arranged in the connecting piece clamping groove.

In the embodiment shown in fig. 8, the connecting means comprises a connecting spring 21, one end of the connecting spring 21 is fixed on the connecting column 20, a connecting spring groove matched with the other end of the connecting spring 21 is arranged on the tape lamp PCBA19, and the other end of the connecting spring 21 is arranged in the connecting spring groove.

As shown in fig. 3, the switch device includes a protector button 9, be equipped with on the protector shell 1 with protector button 9 assorted through-hole 8, protector button 9 arranges in through-hole 8 and with through-hole 8 sliding connection, the outside of protector shell 1 is arranged in to one of them end of protector button 9, the inside of protector shell 1 is arranged in and is located the side of elasticity contact piece 10 to the other end of protector button 9, be fixed with on the lateral wall of the protector button 9 other end with elasticity contact piece 10 assorted kicking block 11, the same one side of protector button 9 is all arranged in to kicking block 11 and elasticity contact piece 10, one side of elasticity contact piece 10 is arranged in to through-hole 8, the opposite side of elasticity contact piece 10 is arranged in to kicking block 11, the tip of the protector button 9 other end and the inside wall of protector shell 1 are connected through reset spring 14.

As shown in fig. 5 and 7, a protrusion 16 is disposed on one surface of the elastic contact piece 10 facing the second pin 5, the second contact 17 is fixed on an end surface of the protrusion 16, a flange 15 matched with the protrusion 16 is fixed on an outer side wall of the other end of the protector button 9, the flange 15 is disposed on a side surface of the protrusion 16, the flange 15 and the ejector block 11 are disposed on the same side of the elastic contact piece 10, and a transition inclined surface is disposed on a side surface of the protrusion 16 facing the flange 15.

As shown in fig. 3, a protective sleeve 7 matched with one end of the protector button 9 is arranged on the outer surface of the protector shell 1, and the protective sleeve 7 is arranged at the opening of the through hole 8 and is arranged outside the protector button 9.

As shown in fig. 4 and 6, the end portion of the other end of the protector button 9 is provided with a slider 12, the inner side wall of the protector shell 1 is provided with a sliding groove matched with the slider 12, the slider 12 is arranged in the sliding groove and is in sliding connection with the sliding groove, the protector button 9 is fixed on one side of the slider 12, the other side of the slider 12 is provided with a spring mounting groove 13 matched with a return spring 14, the return spring 14 is installed in the spring mounting groove 13, one end of the return spring 14 is in contact with the bottom surface of the spring mounting groove 13, and the other end of the return spring 14 is in contact with the inner side wall of the protector shell 1.

The working principle is as follows:

under the natural state, the reset spring 14 has certain elasticity to the protector button 9, so that the protector button 9 has the tendency of popping out of the through hole 8, and at the moment, the elastic contact piece 10 clamps the top block 11 to prevent the protector button 9 from moving.

As shown in fig. 9, when the operating circuit is in a normal state, the contact 17 on the elastic contact piece 10 and the pin two 5 are in a contact state, the current passes through the pin one 3, the elastic contact piece 10 and the pin two 5 in sequence, and at this time, the strip lamp PCBA19 is short-circuited and is in an off state; when the overload condition occurs to the working circuit, the elastic contact piece 10 is heated and deformed, the contact 17 is automatically separated from the second pin 5, the elastic contact piece 10 cancels clamping of the ejector block 11, the protector button 9 pops out under the action of the reset spring 14, the ejector block 11 moves to the side face of the elastic contact piece 10 and abuts against the elastic contact piece 10, the elastic contact piece 10 cannot be contacted with the second pin 5 again all the time, the overload circuit is disconnected, current sequentially passes through the first pin 3, the PCBA19 with the lamp and the third pin 4, and the PCBA19 is automatically lightened to prompt a worker.

After the overload circuit is processed, the worker only needs to press the protector button 9 again.

Claims

1. The utility model provides an external outage indicating function overload protection structure, characterized by, including protector shell (1), install pin (3) and pin two (5) on protector shell (1), the inside of protector shell (1) is arranged in to the one end of pin (3) and install elastic contact piece (10) on it, the one end and the pin (3) fixed connection of elastic contact piece (10), the other end of elastic contact piece (10) is equipped with and installs contact (17) with pin two (5) assorted, the inside of protector shell (1) is arranged in and the side of placing contact (17) is arranged in to the one end of pin two (5), the outside of protector shell (1) is all arranged in to the other end of pin one (3) and the other end of pin two (5), install the switching device who is connected with elastic contact piece (10) on protector shell (1), install on the surface of protector shell (1) and take lamp PCBA (19), pin (3) and pin two (5) all contact with taking lamp PCBA (19), install three (4) of pin on protector shell (1), the one end of three (4) of pin and take lamp PCBA (19) to contact, the outside of protector shell (1) is arranged in to the other end of three (4) of pin.

2. The overload protection structure with the external power failure indication function of claim 1, wherein a PCBA mounting groove (22) is formed in the outer surface of the protector shell (1), the tape light PCBA (19) is mounted inside the PCBA mounting groove (22), a protection cover plate (2) is arranged at an opening of the PCBA mounting groove (22), and the protection cover plate (2) is clamped with the PCBA mounting groove (22).

3. An external power failure indication function overload protection structure according to claim 1, wherein a PCBA lampshade (6) is arranged on the outer surface of the protector shell (1), the PCBA lampshade (6) is in threaded connection with the protector shell (1), and the PCBA (19) with the lamp is installed inside the PCBA lampshade (6).

4. The overload protection structure with the external power failure indication function according to claim 1, wherein a connection column (20) is fixed on each of the first pin (3) and the second pin (5), the connection column (20) penetrates through the protector housing (1) and is arranged on the side surface of the PCBA (19) with the lamp, and a connecting device is arranged between the connection column (20) and the PCBA (19) with the lamp.

5. The overload protection structure with the external power failure indication function according to claim 4, wherein the connecting device comprises a connecting piece (18), one end of the connecting piece (18) is fixed on the connecting column (20), the PCBA (19) with the lamp is provided with a connecting piece clamping groove matched with the other end of the connecting piece (18), and the other end of the connecting piece (18) is installed in the connecting piece clamping groove.

6. The overload protection structure with the external power failure indication function according to claim 4, wherein the connecting device comprises a connecting spring (21), one end of the connecting spring (21) is fixed on the connecting column (20), the PCBA (19) with the lamp is provided with a connecting spring slot matched with the other end of the connecting spring (21), and the other end of the connecting spring (21) is installed in the connecting spring slot.

7. The overload protection structure with the external power failure indication function according to claim 1, wherein the switch device comprises a protector button (9), the protector housing (1) is provided with a through hole (8) matched with the protector button (9), the protector button (9) is arranged in the through hole (8) and is in sliding connection with the through hole (8), one end of the protector button (9) is arranged outside the protector housing (1), the other end of the protector button (9) is arranged inside the protector housing (1) and is located on the side surface of the elastic contact piece (10), the outer side wall of the other end of the protector button (9) is fixed with a top block (11) matched with the elastic contact piece (10), the top block (11) and the elastic contact piece (10) are both arranged in the protector of the button (9), the through hole (8) is arranged on one side of the elastic contact piece (10), the top block (11) is arranged on the other side of the elastic contact piece (10), and the end part of the other end of the protector button (9) is connected with the inner side wall of the protector shell (1) through a return spring (14).

8. The overload protection structure with the external power failure indication function according to claim 7, wherein a protrusion (16) is arranged on one surface of the elastic contact piece (10) facing the second pin (5), the second contact (17) is fixed on an end surface of the protrusion (16), a flange (15) matched with the protrusion (16) is fixed on an outer side wall of the other end of the protector button (9), the flange (15) is arranged on a side surface of the protrusion (16), the flange (15) and the top block (11) are arranged on the same side of the elastic contact piece (10), and a transition inclined surface is arranged on a side surface of the protrusion (16) facing one side of the flange (15).

9. The overload protection structure with the external power failure indication function according to claim 7, wherein a protective sleeve (7) matched with one end of the protector button (9) is arranged on the outer surface of the protector shell (1), and the protective sleeve (7) is installed at the opening of the through hole (8) and is arranged outside the protector button (9).

10. The overload protection structure with the external power failure indication function according to claim 7, wherein a sliding block (12) is arranged at the end of the other end of the protector button (9), a sliding groove matched with the sliding block (12) is formed in the inner side wall of the protector shell (1), the sliding block (12) is arranged in the sliding groove and is in sliding connection with the sliding groove, the protector button (9) is fixed on one side of the sliding block (12), a spring installation groove (13) matched with the reset spring (14) is formed in the other side of the sliding block (12), the reset spring (14) is installed in the spring installation groove (13), one end of the reset spring (14) is in contact with the bottom surface of the spring installation groove (13), and the other end of the reset spring (14) is in contact with the inner side wall of the protector shell (1).