CN112379299A

CN112379299A - Constant current function detection device of LED power supply

Info

Publication number: CN112379299A
Application number: CN202011376437.7A
Authority: CN
Inventors: 赵景垂
Original assignee: Xiangshan Youcheng Crystal Co ltd
Current assignee: Xiangshan Youcheng Crystal Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-02-19

Abstract

The invention discloses a constant current function detection device of an LED power supply, which comprises a base, wherein a measurement block is fixedly arranged on the upper side of the base, a power supply space is arranged in the upper surface of the measurement block, a contact piece is fixedly arranged in the left wall of the power supply space, an LED power supply which can be abutted against and electrified with the contact piece is arranged in the power supply space, an extrusion space is arranged in the measurement block, an electromagnet is fixedly arranged in the middle of the extrusion space, the electromagnet is connected with the contact piece through a first wire circuit, the LED power supply can be automatically tested after being placed in the power supply space, the LED power supply can be automatically withdrawn and tested after the test is finished, the use is very convenient, the test result can be intuitively reflected on a marking belt, the quality of the LED power supply can be directly observed, and simultaneously, the structure is very simple and the price is low, it can also be amplified and reacted to small current changes.

Description

Constant current function detection device of LED power supply

Technical Field

The invention relates to the technical field of LED power supplies, in particular to a constant current function detection device of an LED power supply.

Background

The LED power supply is one of power supplies, which is a device for supplying power to electronic equipment, and is also a power supply for converting alternating current into direct current through a transformer and a rectifier;

the LED power supply has to have the constant current function, in case the operating current of LED exceeds the rated current then can reduce LED's life fast, LED can age the damage soon, consequently, the constant current function of LED power supply is very important, consequently can carry out the constant current detection to the LED power supply sometimes, it can use just to detect not have the problem, and the constant current detection to the minor change probably needs to use comparatively expensive equipment at present, consequently can not satisfy masses to the demand of minor constant current detection, consequently, design a low price, high durability and convenient use, it is very necessary to observe direct-viewing simple constant current check out test set.

Disclosure of Invention

The invention aims to provide a constant current function detection device of an LED power supply, which is used for overcoming the defects in the prior art.

The constant current function detection device of the LED power supply comprises a base, wherein a measuring block is fixedly arranged on the upper side of the base, a power supply space is arranged in the upper surface of the measuring block, a contact piece is fixedly arranged in the left wall of the power supply space, an LED power supply which can be abutted against and electrified with the contact piece is arranged in the power supply space, an extrusion space is arranged in the measuring block, an electromagnet is fixedly arranged in the middle of the extrusion space, the electromagnet is connected with the contact piece through a first wire circuit, a push block is slidably connected to the right side of the electromagnet, an amplification space for amplifying the moving distance is communicated with the right side of the extrusion space, a slide rod is slidably connected in the amplification space, the right end of the slide rod extends into an extrusion cavity communicated with the right side of the amplification space, and hydraulic oil positioned in the extrusion space is arranged between the push block and the slide rod, the front side and the rear side of the push block are provided with friction cavities positioned in the front wall and the rear wall of the extrusion space, the friction cavities are connected with friction blocks in a sliding manner, a first spring is fixedly connected between one side wall of each friction block, which is opposite to the friction cavity, the surface of one opposite side of each friction block is fixedly connected with a limiting block for limiting the position of the push block, a second spring is fixedly connected between the push block and the electromagnet, the left side of the electromagnet is provided with a sliding block which is connected with the extrusion space in a sliding manner, a first pull rope is fixedly connected between the sliding block and the friction block, the upper side of the extrusion space is provided with a push-out space, a push-out mechanism for pushing out the LED power supply is arranged in the push-out space, the front surface and the rear surface of the measuring block are provided with side cavities which are symmetrical in, and a marking mechanism used for providing marks for the conveyor belt mechanism is arranged in the extrusion cavity.

On the basis of the technical scheme, the marking mechanism comprises a diamond-shaped block which is located in the extrusion cavity and is fixedly connected to the right end of the sliding rod, a marking space is formed in a side wall, opposite to the side cavity, of the side cavity, a spring cavity which is located in the measuring block is arranged between the marking space and the extrusion cavity, a squeezing rod which penetrates through the spring cavity and stretches into the marking space is arranged in the front wall and the rear wall of the extrusion cavity in a penetrating and sliding connection mode, the squeezing rod is abutted to the diamond-shaped block, a return spring is fixedly connected between the squeezing rod and the inner wall of the spring cavity, a dye cavity which is located in the measuring block is arranged on the right side of the extrusion cavity, and a dyeing belt which is elastic and spans over one end, back to the squeezing rod, of the dyeing cavity is fixedly connected to the marking.

On the basis of the technical scheme, the conveyor belt mechanism comprises a first rotating shaft which is rotatably connected with the front and back of the upper and lower walls of the side cavity and is symmetrical in position, an arc-shaped rod which is symmetrically arranged between the upper and lower walls of the side cavity is fixedly arranged on the right side of the first rotating shaft, one side, back to back, of the arc-shaped rod is rotatably connected with a second rotating shaft on the bottom wall of the side cavity, a third rotating shaft which is symmetrically arranged on the bottom wall of the side cavity in front and back is rotatably connected with the left side of the first rotating shaft, a belt collecting barrel is arranged on the third rotating shaft, a roller is arranged on the first rotating shaft, and the roller is wound with a mark belt which spans the arc-shaped rod, the second rotating shaft and the mark belt which.

On the basis of the technical scheme, a first bevel gear is fixedly connected to the lower side of the third rotating shaft, the first bevel gear is meshed with second bevel gears which are symmetrical in front and back positions, a fourth rotating shaft is fixedly connected between the second bevel gears, a motor is dynamically connected to the fourth rotating shaft, a pulley cavity which is penetrated through by the fourth rotating shaft is arranged in the measuring block, a pulley of the fourth rotating shaft is rotatably connected in the pulley cavity in a one-way transmission mode, and the motor is connected with the electromagnet in parallel through a second electric wire.

On the basis of the technical scheme, the ejecting mechanism including run through and sliding connection in it just stretches into to push out the space roof the ejector pin in power space, the ejector pin with fixedly connected with third spring between the diapire in push out the space, fixedly connected with sliding connection in on the ejector pin push out the slide in space, be equipped with first space in the terminal surface about the slide, sliding connection has the wedge in the first space, the wedge with fixedly connected with fourth spring between the relative lateral wall in first space, be equipped with in the left and right walls in push out the space can by the card chamber that the wedge card was gone into, the upper surface of slide with fixedly connected with has elastic second stay cord between the pulley.

The invention has the beneficial effects that: the LED power supply can be automatically tested after being placed into the power supply space, the LED power supply can be automatically withdrawn and tested after the test is finished, the use is very convenient, the test result can be very visually reflected on the mark belt, the quality of the LED power supply can be directly observed, the structure is very simple, the price is low, and the LED power supply can be amplified and reflected for small current change.

Drawings

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

FIG. 1 is a schematic diagram of the overall structure of a constant current function detection device of an LED power supply of the present invention;

FIG. 2 is a schematic view of the present invention taken along the line A-A of FIG. 1;

FIG. 3 is an enlarged view of the invention at B in FIG. 2;

fig. 4 is a schematic view of the structure of fig. 2 in the direction of C-C according to the present invention.

Detailed Description

The invention will now be described in detail with reference to fig. 1-4, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

Referring to fig. 1 to 4, the constant current function detection device for the LED power supply according to the embodiment of the present invention includes a base 10, a measurement block 11 is fixedly disposed on an upper side of the base 10, a power supply space 40 is disposed in an upper surface of the measurement block 11, a contact piece 51 is fixedly disposed in a left wall of the power supply space 40, an LED power supply 41 capable of being abutted against and energized with the contact piece 51 is disposed in the power supply space 40, a pressing space 16 is disposed in the measurement block 11, an electromagnet 14 is fixedly disposed in a middle of the pressing space 16, the electromagnet 14 is electrically connected to the contact piece 51 through a first wire 12, a push block 20 is slidably connected to a right side of the electromagnet 14, an amplification space 28 for amplifying a moving distance is communicated to a right side of the pressing space 16, a slide rod 38 is slidably connected to the amplification space 28, a right end of the slide rod 38 extends into an extrusion cavity 34 communicated to a right side of the amplification space 28, hydraulic oil 39 positioned in the extrusion space 16 is arranged between the push block 20 and the slide rod 38, friction cavities 25 positioned in the front wall and the rear wall of the extrusion space 16 are arranged on the front side and the rear side of the push block 20, friction blocks 26 are slidably connected in the friction cavities 25, first springs 24 are fixedly connected between one side wall of each friction block 26 opposite to the corresponding friction cavity 25, limiting blocks 22 used for limiting the positions of the push block 20 are fixedly connected on the surfaces of the opposite sides of the friction blocks 26, second springs 21 are fixedly connected between the push block 20 and the electromagnet 14, a slide block 15 slidably connected to the extrusion space 16 is arranged on the left side of the electromagnet 14, first pull ropes 23 are fixedly connected between the slide block 15 and the friction blocks 26, a push-out space 46 is arranged on the upper side of the extrusion space 16, and a push-out mechanism 801 used for the LED power supply 41 is arranged in the push-out space 46, the front surface and the rear surface of the measuring block 11 are provided with side cavities 13 with symmetrical front and rear positions, the side cavities 13 are provided with conveyor belt mechanisms 802 for displaying marks, and the extrusion cavity 34 is provided with a marking mechanism 803 for providing marks for the conveyor belt mechanisms 802.

In addition, in one embodiment, the marking mechanism 803 comprises a diamond block 31 positioned in the extrusion chamber 34 and fixedly connected to the right end of the slide rod 38, a marking space 29 is arranged in one side wall of the side cavity 13, a spring cavity 36 positioned in the measuring block 11 is arranged between the marking space 29 and the extrusion cavity 34, a squeezing rod 37 which penetrates through the spring cavity 36 and extends into the marking space 29 is penetrated and connected in a sliding way in the front wall and the rear wall of the squeezing cavity 34, the extrusion rod 37 is abutted against the diamond block 31, a return spring 35 is fixedly connected between the extrusion rod 37 and the inner wall of the spring cavity 36, the right side of the extrusion cavity 34 is provided with a dye cavity 33 positioned in the measuring block 11, and a dyeing belt 32 which has elasticity and spans one end of the extrusion rod 37 back to back is fixedly connected between the dye cavity 33 and the marking space 29.

In addition, in an embodiment, the conveyor belt mechanism 802 includes a first rotating shaft 27 rotatably connected to the upper wall and the lower wall of the side cavity 13 at front and rear positions symmetrically, an arc rod 30 fixedly arranged between the upper wall and the lower wall of the side cavity 13 at front and rear positions symmetrically is arranged on the right side of the first rotating shaft 27, a second rotating shaft 18 rotatably connected to the bottom wall of the side cavity 13 is arranged on the opposite side of the arc rod 30, a third rotating shaft 55 rotatably connected to the bottom wall of the side cavity 13 at front and rear positions symmetrically is arranged on the left side of the first rotating shaft 27, a belt winding drum 52 is arranged on the third rotating shaft 55, a roller 61 is arranged on the first rotating shaft 27, and a mark 17 crossing over the arc rod 30 and the second rotating shaft 18 and winding on the belt winding drum 52 is wound on the roller 61.

In addition, in one embodiment, a first bevel gear 54 is fixedly connected to a lower side of the third rotating shaft 55, second bevel gears 56 with symmetrical front and back positions are engaged and connected to the first bevel gear 54, a fourth rotating shaft 60 is fixedly connected between the second bevel gears 56, a motor 57 is dynamically connected to the fourth rotating shaft 60, a pulley cavity 59 penetrated by the fourth rotating shaft 60 is arranged in the measuring block 11, a pulley 58 connected to the fourth rotating shaft 60 in a one-way transmission manner is arranged in the pulley cavity 59, and the motor 57 and the electromagnet 14 are connected in parallel through a second wire 53.

In addition, in one embodiment, the push-out mechanism 801 includes a push rod 50 penetrating and slidably connected to the top wall of the push-out space 46 and extending into the power supply space 40, a third spring 45 is fixedly connected between the push rod 50 and the bottom wall of the push-out space 46, a sliding plate 44 slidably connected to the push-out space 46 is fixedly connected to the push rod 50, a first space 43 is arranged in the left and right end surfaces of the sliding plate 44, a wedge block 47 is slidably connected to the first space 43, a fourth spring 42 is fixedly connected between the wedge block 47 and a side wall opposite to the first space 43, a clamping cavity 48 capable of being clamped by the wedge block 47 is arranged in the left and right walls of the push-out space 46, and a second elastic pull rope 49 is fixedly connected between the upper surface of the sliding plate 44 and the pulley 58.

In the initial state, the slide plate 44 and the push rod 50 are located at the uppermost side under the elastic force of the third spring 45, the wedge block 47 is not clamped in the clamping cavity 48, and the friction block 26 presses the push block 20 under the elastic force of the first spring 24 and prevents the push block 20 from moving.

When detection work is needed, the LED power supply 41 to be detected is placed in the power supply space 40, the LED power supply 41 contacts the contact piece 51 and supplies power to the first wire 12, meanwhile, the LED power supply 41 extrudes the ejector rod 50 downwards, the ejector rod 50 downwards moves and drives the sliding plate 44 to downwards move till the lowest side, at the moment, the wedge-shaped block 47 extends out under the elastic force of the fourth spring 42 and is clamped in the clamping cavity 48, and at the moment, the third spring 45 is extruded;

meanwhile, the electromagnet 14 and the motor 57 are electrified, so that the electromagnet 14 repels the slide block 15 to the left side, the slide block 15 moves to the left side and tensions the first pull rope 23, the first pull rope 23 pulls the friction block 26, the friction block 26 is separated from contact with the push block 20, and the push block 20 moves to the right under the repulsion force of the electromagnet 14;

then when the output current of the LED power supply 41 increases, the magnetism of the electromagnet 14 increases, and further the push block 20 moves a short distance again, and further after the amplification effect of the hydraulic oil 39 and the amplification space 28, the moving distance of the slide rod 38 is amplified, and further the diamond block 31 moves to the right, and further under the extrusion effect of the diamond block 31, the extrusion rod 37 at the rear side moves backward, and when the current increase value of the LED power supply 41 exceeds the limit value, the extrusion rod 37 at the rear side drives the dyeing belt 32 to extrude to the arc-shaped rod 30 and dye the mark on the mark belt 19, which indicates that the maximum current value of the LED power supply 41 is too large;

when the output current of the LED power supply 41 is small, the magnetism of the electromagnet 14 becomes small, and then the push block 20 moves to the left under the elastic force of the second spring 21, and then the diamond block 31 moves to the left under the hydraulic action, and then the diamond block 31 drives the extrusion rod 37 at the front side to move forward, and when the current of the LED power supply 41 is lower than the minimum limit value, the extrusion rod 37 at the front side will push the dyeing belt 32 to contact the mark belt 19 and leave a mark on the mark belt 19;

the LED power supply 41 capable of leaving the mark is unqualified and cannot achieve the constant current effect;

when the motor 57 is powered on, the fourth rotating shaft 60 rotates and drives the second bevel gear 56 to rotate, so that the first bevel gear 54 rotates, the third rotating shaft 55 rotates and drives the tape winding drum 52 to rotate, so that the tape winding drum 52 drives the mark tape 19 to move, and the movement of the mark tape 19 represents a time axis, represents the time when the current of the LED power supply 41 exceeds the maximum value and the minimum value, and can reflect the frequency of the current change of the LED power supply 41;

meanwhile, the fourth rotating shaft 60 drives the pulley 58 to rotate when rotating, so that the second pull rope 49 is stretched, the pulling force of the second pull rope 49 on the sliding plate 44 is gradually increased until the wedge-shaped block 47 is extruded out of the clamping cavity 48, the sliding plate 44 moves upwards under the elastic force of the third spring 45 and the pulling force of the second pull rope 49 and extrudes the LED power supply 41 out of the power supply space 40 through the ejector rod 50, meanwhile, the third spring 45 can also avoid the phenomenon that the distance of the upward movement of the ejector rod 50 is too large, the LED power supply 41 is extruded to indicate the end of the test, and whether the mark exists on the mark belt 19 is observed at the moment, so that the quality of the LED power supply 41.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a constant current function detection device of LED power, includes the base, its characterized in that: the upside of base has set firmly the measuring block, be equipped with the power space in the upper surface of measuring block, the left wall internal fixation in power space has the contact piece, the inside in power space placed can with the LED power of contact piece butt and circular telegram, the inside of measuring block is equipped with the extrusion space, the centre department in extrusion space has set firmly the electro-magnet, the electro-magnet with through first electric wire circuit connection between the contact piece, the right side sliding connection of electro-magnet has the ejector pad, the right side intercommunication in extrusion space has the enlarged space that is used for enlargiing the displacement, sliding connection has the slide bar in the enlarged space, the right-hand member of slide bar stretches into communicate in the extrusion intracavity portion on enlarged space right side, be equipped with between ejector pad and the slide bar and be located the inside hydraulic oil in extrusion space, the front and back side of ejector pad is equipped with and is located the friction chamber in the front and back wall in extrusion space, a friction block is connected in the friction cavity in a sliding way, a first spring is fixedly connected between the friction block and one side wall of the friction cavity opposite to the friction cavity, a limiting block used for limiting the position of the push block is fixedly connected on the surface of one side opposite to the friction block, a second spring is fixedly connected between the push block and the electromagnet, a slide block which is connected with the extrusion space in a sliding way is arranged at the left side of the electromagnet, a first pull rope is fixedly connected between the sliding block and the friction block, a push-out space is arranged on the upper side of the extrusion space, a push-out mechanism for pushing out the LED power supply is arranged in the push-out space, side cavities with symmetrical front and back positions are arranged in the front and back surfaces of the measuring block, the side cavity is internally provided with a conveyor belt mechanism for displaying marks, and the extrusion cavity is internally provided with a marking mechanism for providing marks for the conveyor belt mechanism.

2. The device for detecting the constant current function of the LED power supply as claimed in claim 1, wherein: the marking mechanism is including being located extrusion intracavity and fixed connection in the diamond-shaped block of slide bar right-hand member, be equipped with the mark space in the relative lateral wall in side chamber, mark space with be equipped with between the extrusion chamber and be located the inside spring chamber of measuring block, run through and sliding connection has and run through in the preceding back wall in extrusion chamber the spring chamber, stretch into the extrusion pole in mark space, the extrusion pole with diamond-shaped block butt, the extrusion pole with fixedly connected with answer spring between the inner wall in spring chamber, the right side in extrusion chamber is equipped with and is located the dyestuff chamber in the measuring block, the dyestuff chamber with fixedly connected with has elastic, strides across the dyeing area of the one end that the extrusion pole carried on the back mutually between the mark space.

3. The device for detecting the constant current function of the LED power supply as claimed in claim 1, wherein: the conveyer belt mechanism including rotate connect in the first pivot of position symmetry around the side chamber upper and lower wall, the right side of first pivot be equipped with set firmly in the arc pole of position symmetry around between the side chamber upper and lower wall, the one side of carrying on the back mutually of arc pole be equipped with rotate connect in the second pivot on the side chamber diapire, the left side of first pivot be equipped with rotate connect in the third pivot of position symmetry around on the side chamber diapire, be provided with in the third pivot and receive a section of thick bamboo, be provided with the cylinder in the first pivot, the winding has to stride across the arc pole the second pivot twine in receive the mark area on the section of thick bamboo of taking.

4. The device for detecting the constant current function of the LED power supply as claimed in claim 3, wherein: the measuring block is internally provided with a pulley cavity penetrated by the fourth rotating shaft, the pulley cavity is internally provided with a one-way transmission rotation connected with a pulley of the fourth rotating shaft, and the motor and the electromagnet are connected in parallel through a second electric wire.

5. The device for detecting the constant current function of the LED power supply as claimed in claim 1, wherein: ejecting mechanism including running through and sliding connection in ejecting space roof just stretches into power space's ejector pin, the ejector pin with fixedly connected with third spring between the diapire in ejecting space, fixedly connected with sliding connection in ejecting space's slide on the ejector pin, be equipped with first space in the terminal surface about the slide, sliding connection has the wedge in the first space, the wedge with fixedly connected with fourth spring between the relative lateral wall in first space, be equipped with in the left and right walls in ejecting space can by the card chamber that the wedge card was gone into, the upper surface of slide with fixedly connected with has elastic second stay cord between the pulley.