CN210801086U

CN210801086U - LED power self-locking protection device

Info

Publication number: CN210801086U
Application number: CN201922058819.4U
Authority: CN
Inventors: 李宗武; 徐宝金
Original assignee: Anhui Runcheng Electrical And Mechanical Co ltd
Current assignee: Anhui Runcheng Electrical And Mechanical Co ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-06-19
Anticipated expiration: 2029-11-22

Abstract

The utility model discloses a LED power auto-lock protection device, the on-line screen storage device comprises a base, the upper end of base is equipped with the PCB board, and the upper end of PCB board is equipped with a plurality of LED light sources of group, the inner wall of base is equipped with the LED power, and the upper end of LED power is equipped with the installation cavity, the upper end wall fixed mounting of installation cavity has first electro-magnet, and the bottom of first electro-magnet adsorbs the magnet piece, the first movable contact spring of bottom fixedly connected with of magnet piece, the bottom of installation cavity just is located first movable contact spring and is equipped with first static contact under, and the inner wall of first stopper is pegged graft perpendicularly has first bracing piece, first spring has been cup jointed to the outer wall of first bracing piece. The utility model overcomes prior art's is not enough, reasonable in design, when LED power self overload failure appears, the auto-lock guard function is realized to the LED power to have the heat dissipation cooling effect, avoid the trouble to enlarge or arouse the conflagration, higher social use value and application prospect have.

Description

LED power self-locking protection device

Technical Field

The utility model relates to a LED technical field especially relates to a LED power auto-lock protection device.

Background

With the development of the technology, the LED lamp has wide application, will inevitably replace the existing lighting device, has the advantages of low power consumption, long service life and the like, wherein the LED driving power supply plays a key role.

The LED driving power supply is a power supply converter which converts power supply into specific voltage and current to drive the LED to emit light, and comprises an IC control chip and the like, has good constant current output in the use process, stably protects the LED from light emission and has long service life, low power consumption and wide application in various fields.

The existing LED driving power supply has certain defects when in use, can not effectively protect the damage caused by overload and short circuit of a circuit, can not timely remove high temperature sent out inside, and brings certain adverse effect to practical use.

Therefore, the inventor, with his experience of design development and practical fabrication in the related industry for many years, has studied and improved the existing structure and deficiency, and provides a self-locking protection device for LED power supply, so as to achieve the purpose of more practical value.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem mentioned in the above-mentioned background art, the utility model provides a LED power auto-lock protection device.

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

a self-locking protection device of an LED power supply comprises a base, wherein a PCB is arranged at the upper end of the base, a plurality of groups of LED light sources are arranged at the upper end of the PCB, the inner wall of the base is provided with the LED power supply, an installation cavity is arranged at the upper end of the LED power supply, a first electromagnet is fixedly installed on the upper end wall of the installation cavity, a magnet sheet is adsorbed at the bottom of the first electromagnet, a first movable contact sheet is fixedly connected to the bottom of the magnet sheet, a first static contact sheet is arranged at the bottom of the installation cavity and is positioned under the first movable contact sheet, first limiting blocks are symmetrically arranged on the side walls of two ends of the first movable contact sheet, a first supporting rod is vertically inserted into the inner wall of each first limiting block, a first spring is sleeved on the outer wall of each first supporting rod, a first cavity is arranged on one side, positioned at the upper end of the LED power supply, a power switch is arranged in each first cavity, a second static contact sheet is, a second movable contact piece is arranged right above the second static contact piece, a second electromagnet is arranged at the upper end of the second movable contact piece, the second electromagnet is fixedly installed on the top wall of the first cavity, second limiting blocks are symmetrically arranged on the side walls of the two ends of the second movable contact piece, a second supporting rod is vertically inserted into the inner wall of each second limiting block, a second spring is sleeved on the outer wall of each second supporting rod, one end of each second spring is connected with the lower end of each second limiting block, and the other end of each second spring is connected with the upper end of the power switch.

Preferably, one end of the first spring is connected with the top wall of the mounting cavity, and the other end of the first spring is connected with the upper end face of the first limiting block.

Preferably, the upper end edge of base is equipped with transparent lamp shade, and transparent lamp shade adopts transparent ya keli material to make.

Preferably, the bottom edge of the transparent lampshade is provided with an annular fixture block.

Preferably, the upper end surface of the base is provided with an annular clamping groove corresponding to the annular clamping block, and the annular clamping block is in threaded connection with the annular clamping groove.

Preferably, the inner wall of the base and the upper end of the LED power supply are provided with a second cavity.

Preferably, a heat dissipation fan is fixedly installed on an inner top wall of the second cavity.

Preferably, the first movable contact piece, the first static contact piece, the second movable contact piece and the second static contact piece are all made of metal copper.

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

1. when the line has an overload phenomenon, the overload protector starts and disconnects the line switch, and at the moment, because the first electromagnet loses the electric connection, the first electromagnet loses the adsorption force on the magnet piece, so that the magnet piece drives the first movable contact piece to fall downwards, and the first movable contact piece is tightly attached to the first static contact piece under the action of the resilience force of the first spring, so that the contact is tighter and the line switch is not easy to loosen;

2. the second movable contact piece moves upwards and is separated from the second static contact piece, and the power switch is in a disconnected state, so that the self-locking protection function is realized, the fault expansion is avoided, and the loss is reduced;

3. when the first movable contact piece is closely attached to the first static contact piece, the starting switch of the cooling fan is started, so that the cooling fan runs and starts to cool the LED power supply, larger faults or fire disasters caused by overheating of the LED power supply are avoided, and potential safety hazards are reduced as far as possible.

To sum up, the utility model overcomes prior art's is not enough, reasonable in design, when LED power self overload failure appears, the auto-lock guard function is realized to the LED power to have the heat dissipation cooling effect, avoid the trouble to enlarge or arouse the conflagration, higher social use value and application prospect have.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

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

FIG. 3 is an enlarged schematic view of the structure A of the present invention;

FIG. 4 is an enlarged schematic view of the structure B of the present invention;

fig. 5 is a schematic circuit diagram of the present invention.

In the figure: the LED lamp comprises a base 1, a PCB 2, an LED light source 3, a transparent lampshade 4, an annular fixture block 5, an LED power source 6, a mounting cavity 7, a first electromagnet 8, a magnet piece 9, a first movable contact piece 10, a first static contact piece 11, a first limiting block 12, a first supporting rod 13, a first spring 14, a first cavity 15, a second electromagnet 16, a second movable contact piece 17, a power switch 18, a second static contact piece 19, a second cavity 20, a cooling fan 21, a second limiting block 22, a second supporting rod 23 and a second spring 24.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 and 3-5, an LED power self-locking protection device includes a base 1, a PCB 2 is disposed at an upper end of the base 1, a plurality of groups of LED light sources 3 are disposed at an upper end of the PCB 2, an LED power source 6 is disposed on an inner wall of the base 1, a mounting cavity 7 is disposed at an upper end of the LED power source 6, a first electromagnet 8 is fixedly mounted on an upper end wall of the mounting cavity 7, a magnet plate 9 is adsorbed at a bottom of the first electromagnet 8, a first movable contact 10 is fixedly connected to a bottom of the magnet plate 9, a first stationary contact 11 is disposed at a bottom of the mounting cavity 7 and right below the first movable contact 10, first stoppers 12 are symmetrically disposed on side walls at two ends of the first movable contact 10, a first support rod 13 is vertically inserted into an inner wall of the first stopper 12, a first spring 14 is sleeved on an outer wall of the first support rod 13, a first cavity 15 is disposed on an upper end of the inner wall of the base 1, a power switch 18 is arranged in the first cavity 15, a second static contact 19 is arranged on the upper end face of the power switch 18, a second movable contact 17 is arranged right above the second static contact 19, a second electromagnet 16 is arranged at the upper end of the second movable contact 17, the second electromagnet 16 is fixedly installed on the top wall of the first cavity 15, second limiting blocks 22 are symmetrically arranged on the side walls of the two ends of the second movable contact 17, a second supporting rod 23 is vertically inserted into the inner wall of each second limiting block 22, a second spring 24 is sleeved on the outer wall of each second supporting rod 23, one end of each second spring 24 is connected with the lower end of each second limiting block 22, and the other end of each second spring is connected with the upper end of the power switch 18.

One end of the first spring 14 is connected with the top wall of the mounting cavity 7, the other end of the first spring is connected with the upper end face of the first limiting block 12, when the first electromagnet 8 is electrified, the magnet piece 9 is adsorbed, and meanwhile, the first spring 14 is compressed to have certain elastic potential energy; once the first electromagnet 8 is electrically disconnected, the first electromagnet 8 loses the adsorption force on the magnet piece 9, so that the magnet piece 9 drives the first movable contact piece 10 to fall downwards, and the first movable contact piece 10 and the first fixed contact piece 11 are tightly attached under the effect of the resilience force of the first spring 14.

Wherein, the upper end edge of base 1 is equipped with transparent lamp shade 4, and transparent lamp shade 4 adopts transparent ya keli material to make, has good luminousness, and the illuminating effect is better.

Wherein, the bottom edge of transparent lamp shade 4 is equipped with annular fixture block 5, and the up end of base 1 is equipped with the ring groove who corresponds with annular fixture block 5, and annular fixture block 5 and ring groove threaded connection, easy to assemble and dismantlement, the later maintenance of being convenient for.

The first movable contact piece 10, the first static contact piece 11, the second movable contact piece 17 and the second static contact piece 19 are all made of metal copper, and have strong corrosion resistance and good electrical conductivity.

The working principle is as follows: in the utility model, when in use, the LED power supply 6 supplies power to the PCB 2 and the LED light source 3, thereby realizing illumination; when the overload phenomenon occurs to the line, the overload protector starts and disconnects the line switch, at this time, because the first electromagnet 8 loses the electric connection, the first electromagnet 8 loses the adsorption force to the magnet piece 9, so that the magnet piece 9 drives the first movable contact piece 10 to fall downwards, the first movable contact piece 10 is tightly attached to the first static contact piece 11 under the effect of the resilience force of the first spring 14, so that the second electromagnet 16 is switched on and is powered on, at this time, the second electromagnet 16 adsorbs the second movable contact piece 17, so that the second movable contact piece 17 moves upwards and is separated from the second static contact piece 19, at this time, the power switch 18 is in a disconnected state, the self-locking function of the LED power supply 6 is realized, and the fault expansion is avoided.

Example 2

Referring to fig. 2-5, the present embodiment is different from embodiment 1 in that a second cavity 20 is disposed on the inner wall of the base 1 and located at the upper end of the LED power supply 6, a heat dissipation fan 21 is fixedly mounted on the inner top wall of the second cavity 20, and when the first movable contact 10 is closely attached to the first fixed contact 11, a start switch of the heat dissipation fan 21 is activated, so that the heat dissipation fan 21 operates and starts to cool down the LED power supply 6.

Other undescribed structures refer to example 1.

The working principle is as follows: in the utility model, when in use, the LED power supply 6 supplies power to the PCB 2 and the LED light source 3, thereby realizing illumination; when the overload phenomenon occurs in the line, the overload protector starts and disconnects the line switch, at this time, because the first electromagnet 8 loses the electric connection, the first electromagnet 8 loses the adsorption force on the magnet piece 9, so that the magnet piece 9 drives the first movable contact piece 10 to fall downwards, the first movable contact piece 10 is tightly attached to the first static contact piece 11 under the action of the resilience force of the first spring 14, so that the second electromagnet 16 is connected and electrified, at this time, the second electromagnet 16 adsorbs the second movable contact piece 17, so that the second movable contact piece 17 moves upwards and is separated from the second static contact piece 19, and at this time, the power switch 18 is in a disconnected state; meanwhile, when the first movable contact piece 10 is closely attached to the first static contact piece 11, the starting switch of the heat dissipation fan 21 is started, so that the heat dissipation fan 21 operates and starts to dissipate heat and cool the LED power supply 6, larger faults or fire disasters caused by overheating of the LED power supply 6 are avoided, and potential safety hazards are reduced as much as possible.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; they may be mechanically coupled, directly coupled, or indirectly coupled through intervening agents, both internally and/or in any other manner known to those skilled in the art. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a LED power auto-lock protection device, includes base (1), its characterized in that: the LED lamp is characterized in that a PCB (2) is arranged at the upper end of the base (1), a plurality of groups of LED light sources (3) are arranged at the upper end of the PCB (2), an LED power supply (6) is arranged on the inner wall of the base (1), an installation cavity (7) is arranged at the upper end of the LED power supply (6), a first electromagnet (8) is fixedly installed on the upper end wall of the installation cavity (7), a magnet piece (9) is adsorbed at the bottom of the first electromagnet (8), a first movable contact piece (10) is fixedly connected to the bottom of the magnet piece (9), a first static contact piece (11) is arranged at the bottom of the installation cavity (7) and is positioned under the first movable contact piece (10), first limiting blocks (12) are symmetrically arranged on the side walls at two ends of the first movable contact piece (10), a first supporting rod (13) is vertically inserted into the inner wall of the first limiting block (12), a first spring (14) is sleeved on the outer wall of the first supporting, a first cavity (15) is arranged on the inner wall of the base (1) and on one side of the upper end of the LED power supply (6), a power switch (18) is arranged in the first cavity (15), a second static contact piece (19) is arranged on the upper end surface of the power switch (18), a second movable contact piece (17) is arranged right above the second static contact piece (19), and the upper end of the second movable contact piece (17) is provided with a second electromagnet (16), the second electromagnet (16) is fixedly arranged on the top wall of the first cavity (15), the side walls of the two ends of the second movable contact piece (17) are symmetrically provided with second limiting blocks (22), and the inner wall of the second limiting block (22) is vertically inserted with a second supporting rod (23), the outer wall of the second supporting rod (23) is sleeved with a second spring (24), and one end of the second spring (24) is connected with the lower end of the second limiting block (22), and the other end of the second spring is connected with the upper end of the power switch (18).

2. The LED power supply self-locking protection device of claim 1, wherein: one end of the first spring (14) is connected with the top wall of the mounting cavity (7), and the other end of the first spring is connected with the upper end face of the first limiting block (12).

3. The LED power supply self-locking protection device of claim 1, wherein: the upper end edge of base (1) is equipped with transparent lamp shade (4), and transparent lamp shade (4) adopt transparent ya keli material to make.

4. The LED power supply self-locking protection device of claim 3, wherein: and an annular clamping block (5) is arranged at the bottom edge of the transparent lampshade (4).

5. The LED power supply self-locking protection device of claim 4, wherein: the upper end face of the base (1) is provided with an annular clamping groove corresponding to the annular clamping block (5), and the annular clamping block (5) is in threaded connection with the annular clamping groove.

6. The LED power supply self-locking protection device of claim 1, wherein: and a second cavity (20) is arranged on the inner wall of the base (1) and positioned at the upper end of the LED power supply (6).

7. The LED power supply self-locking protection device of claim 6, wherein: and a heat radiation fan (21) is fixedly arranged on the inner top wall of the second cavity (20).

8. The LED power supply self-locking protection device of claim 1, wherein: the first movable contact piece (10), the first static contact piece (11), the second movable contact piece (17) and the second static contact piece (19) are all made of metal copper.