CN110743823B

CN110743823B - LED polarity detection device based on ampere rule

Info

Publication number: CN110743823B
Application number: CN201911217819.2A
Authority: CN
Inventors: 黄树赞
Original assignee: Suzhou Skyworth Advertising Technology Co ltd
Current assignee: Suzhou Skyworth Advertising Technology Co.,Ltd.
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2021-07-02
Anticipated expiration: 2039-12-03
Also published as: CN110743823A; CN113083741A

Abstract

The invention belongs to the field of electronic element detection, and particularly relates to an ampere rule-based LED polarity detection device which comprises a bottom plate, wherein two ends of the bottom plate are fixedly connected with sliding cylinders, sliding plates are respectively connected in the two sliding cylinders in a sliding mode, the upper ends of the sliding plates are fixedly connected with a fixed plate, the upper end of the bottom plate is provided with a power generation mechanism, the upper end of the power generation mechanism is provided with a threaded rod, the threaded rod is in threaded connection with a threaded sleeve, the threaded sleeve is fixedly connected with the sliding plates through the fixed rod, the upper ends of the fixed plates are provided with a. According to the invention, the plurality of detection mechanisms are arranged, so that the plurality of LEDs can be detected simultaneously, the resetting mechanism is arranged, so that the fixing plate can perform primary detection on the LEDs in the pressing process, and can also perform secondary detection in the resetting process of the fixing plate, the detection efficiency is greatly improved by continuously performing two detections, and the detection results can be divided into three types by arranging the permanent magnets, so that the LEDs can be sorted and collected subsequently.

Description

LED polarity detection device based on ampere rule

Technical Field

The invention belongs to the field of electronic element detection, and particularly relates to an LED polarity detection device based on an ampere rule.

Background

The LED is called as a light emitting diode, is made of compounds containing gallium, arsenic, phosphorus, nitrogen and the like, adopts a solid semiconductor chip as a luminescent material, and compared with the traditional lamp, the LED lamp is energy-saving, environment-friendly, good in color rendering property and response speed, and has a plurality of benefits, so that the LED lamp is widely applied to various aspects, such as decoration, illumination and the like.

The LED production process is more, wherein, the polarity after the diode is made is a relatively loaded down with trivial details one of them, because the diode is the electrically conductive characteristic of one-way conduction current only, make the diode often need carry out the different circular telegram process of twice electric current direction and confirm the polarity, because the operation of twice circular telegram process is complicated, easily lead to detection rate slower, moreover, general polarity detection device need the manual work to discern and sort after carrying out polarity detection, because the general specification of diode is less and huge in quantity, easily lead to the fault rate of manual work discernment higher, and the simultaneous sorting of a large amount of diodes need consume very big manpower.

To this end, we propose an ampere rule based LED polarity detection device to solve the above problems.

Disclosure of Invention

The invention aims to provide an ampere rule-based LED polarity detection device which is high in detection efficiency and convenient to sort, aiming at the problems that the detection process is complicated and the sorting process consumes much labor.

In order to achieve the purpose, the invention adopts the following technical scheme: an ampere rule-based LED polarity detection device comprises a bottom plate, wherein two ends of the bottom plate are fixedly connected with sliding cylinders, two sliding plates made of conductive materials are respectively and slidably connected in the sliding cylinders, the upper end of each sliding plate is fixedly connected with a same fixed plate, the upper end of the bottom plate is provided with a power generation mechanism, the upper end of the power generation mechanism is provided with a threaded rod, a threaded sleeve is in threaded connection with the threaded rod and fixedly connected with the sliding plates through fixed rods, a plurality of detection mechanisms are arranged at the upper ends of the fixed plates, each detection mechanism comprises two vertically arranged support rods, each support rod comprises a conductive rod, the upper end of each conductive rod is fixedly connected with an insulating rod, a friction ring made of conductive materials and a spiral coil are slidably sleeved on the support rods, the upper end of each insulating rod is fixedly connected with a permanent magnet, the piece is placed through connecting rod fixedly connected with to spiral coil upper end, the embedded two leading wire that is equipped with of fixed plate, two the conducting rod lower extreme all through a branch wire and corresponding leading wire electric connection, the threaded rod lower extreme is equipped with the canceling release mechanical system that is used for the threaded rod to reset.

In the LED polarity detection device based on the ampere rule, the two main conducting wires are electrically connected to the positive electrode and the negative electrode of the power generation mechanism, respectively.

In the aforementioned LED polarity detection device based on the ampere rule, the lower end of the fixing plate is fixedly connected to the upper end of the bottom plate through a plurality of telescopic rods.

In the LED polarity detection device based on the ampere rule, the lower end of the main conductor is electrically connected to the sliding plate, the conductive mechanism is electrically connected to the sliding plate through a copper core, and the copper core is embedded in the bottom plate.

In the LED polarity detection device based on the ampere rule, the two thread coils have opposite rotation directions. Compared with the prior art, the LED polarity detection device based on the ampere rule has the advantages that:

1. according to the invention, by arranging the reset mechanism, when the threaded sleeve moves downwards by pressing the fixed plate, the threaded rod can rotate once at the same time, and the power generation mechanism generates primary current, after the movement process of the threaded sleeve is finished, the threaded rod can rotate reversely due to the existence of the reset mechanism to recover the initial state, and the reverse rotation of the threaded rod can enable the power generation mechanism to generate secondary current with the direction opposite to that of the primary current, and the existence of the reset mechanism enables the power generation mechanism to continuously output current with the direction opposite to that of the primary current for two times, so that the process of changing the positions of the anode and the cathode of the LED lamp foot after the primary current identification is not effective is avoided, and the working efficiency is greatly improved while the time is saved.

2. According to the invention, by arranging the spiral coil, the arrangement of the spiral coil and the special electromagnetic property of the spiral coil, under the condition that the spiral direction is fixed, when the current directions of two conducting currents are opposite, the magnetic fields with completely opposite magnetic poles can be shown around the spiral coil, and only one side of the LED can be conducted through the current, so that the spiral coil can only show magnetism when the LED is in a conducting state, and the two spiral coils with opposite spiral directions can show the same magnetism when the same current is passed through, thereby further amplifying the effect shown by the magnetism.

3. According to the invention, by arranging the permanent magnets, when the spiral coil is conducted and has magnetism, the permanent magnets at the upper end of the supporting rod can observe that the spiral coil is pulled upwards or pushed downwards by the principle that opposite poles attract or same poles repel each other between the magnets, the magnetism shown by the spiral coil is visually amplified, and the polarity of the diode is obtained by analyzing the result, so that the diodes in the detection mechanism with the same motion state can be classified into the same polarity, the batch identification is realized, and the detection efficiency is increased.

4. According to the invention, through arranging the main guide lines, because the two main guide lines in the fixed plate are communicated to the power generation mechanism through the internal copper core and the sliding plate, and the two main guide lines are arranged in a parallel state, a plurality of detection mechanisms can be connected in parallel between the two main guide lines, and the arrangement of the plurality of detection mechanisms can simultaneously detect the polarity of a plurality of LEDs by pressing the fixed plate once, so that the working efficiency of LED polarity detection is greatly improved.

Drawings

Fig. 1 is a schematic structural diagram of an ampere rule-based LED polarity detection device provided in the present invention;

FIG. 2 is a schematic side view of the structure of FIG. 1;

FIG. 3 is a schematic structural diagram of a floating state detection result of an LED polarity detection device based on the ampere rule provided by the invention;

fig. 4 is a schematic structural diagram of a sinking state of a detection result of the ampere rule-based LED polarity detection device provided by the present invention.

In the figure: the device comprises a base plate 1, a sliding cylinder 2, a sliding plate 3, a fixing plate 4, a threaded rod 5, a threaded sleeve 6, a fixing rod 7, a supporting rod 8, a conductive rod 9, an insulating rod 10, a friction ring 11, a spiral coil 12, a permanent magnet 13, a placement block 14, a main guide wire 15, a lead wire 16, a copper core 17, a telescopic rod 18 and a connecting rod 19.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

As shown in fig. 1-4, an LED polarity detection device based on ampere's rule, including bottom plate 1, the equal fixedly connected with slide cartridge 2 in bottom plate 1 both ends, equal sliding connection has conductive material's sliding plate 3 in two slide cartridges 2, the same fixed plate 4 of 3 upper ends fixedly connected with of sliding plate, it is worth mentioning that, fixed plate 4 lower extreme is through a plurality of telescopic links 18 and bottom plate 1 upper end fixed connection, the setting of telescopic link 18 can carry out more stable support to fixed plate 4 for overall structure is more fastened.

In the invention, the upper end of a bottom plate 1 is provided with a power generation mechanism, specifically, the power generation mechanism comprises a main magnet and two auxiliary magnets which are fixedly connected to the upper end of the bottom plate 1, the two auxiliary magnets are symmetrically arranged with the main magnet, an iron rod is arranged between the auxiliary magnets and the main magnet, the upper end of the iron rod is fixedly connected with the copper rod, specifically, the two copper rods are fixedly connected with a metal ring, the metal ring is fixedly sleeved on a threaded rod, the threaded rod can drive the two iron rods to rotate when rotating, the lower end of the iron rod is slidably connected to the upper end of the bottom plate, the upper end of the bottom plate is provided with an annular groove matched with the iron rod, the inner bottom surface of the annular groove is fixedly connected with.

According to the invention, the upper end of the power generation mechanism is provided with a threaded rod 5, the threaded rod 5 is in threaded connection with a threaded sleeve 6, the threaded sleeve 6 is fixedly connected with a sliding plate 3 through a fixing rod 7, the upper end of the fixing plate 4 is provided with a plurality of detection mechanisms, each detection mechanism comprises two vertically arranged supporting rods 8, each supporting rod 8 comprises a conductive rod 9, the upper end of each conductive rod 9 is fixedly connected with an insulating rod 10, each supporting rod 8 is slidably sleeved with a friction ring 11 and a spiral coil 12 which are made of conductive materials, the upper end of each insulating rod 10 is fixedly connected with a permanent magnet 13, the lower end of each spiral coil 12 is electrically connected with the friction ring 11, the upper end of each spiral coil 12 is fixedly connected with a placement block 14 through a connecting rod 19, the spiral coils 11, the connecting rods 19 and the placement blocks 14 are mutually communicated, and the friction force between the friction ring 11 and the conductive, The spiral coil 12, the placing block 14 and the LED bulb placed between the two placing blocks 14 are kept at any position on the support rod 8, and the friction ring 11 under normal state is sleeved on the conductive rod 9 and is conducted with the conductive rod 9.

In the invention, the arrangement of the spiral coil 12 and the special electromagnetic property of the spiral coil 12 enable the spiral coil 12 with a certain rotation direction to present completely opposite magnetic fields around under the condition of conducting current twice in opposite directions, while only one side of the LED can be conducted by current, so that the spiral coil 12 can be conducted in one condition in the current twice, the existence of the spiral coil 12 can convert the electrical problem of LED polarity identification into the magnetic problem, and further the attribute of the generated magnetic field can be identified by the permanent magnet 13, because the magnetism of the permanent magnet 13 is a known quantity, the observed motion state of the spiral coil 12 is a known quantity, and further the polarity position of the LED tube can be deduced by the two, the arrangement of the spiral coil 12 can realize the visibility of the change of the LED polarity through the position state, so that after the polarity detection of a plurality of LEDs is finished, at most three different position states can appear, then can carry out the branch reason to the LED that the position state is different and accomodate, greatly reduce the work load that the branch reason work after the LED polarity detection finishes needs.

In the present invention, the directions of rotation of the two spiral coils 18 are opposite, and since the current is always transmitted from one coil to the second coil, the approximate direction of the current flowing through the first spiral coil 121 is always from bottom to top, and the approximate direction of the current flowing through the second spiral coil 12 is from top to bottom, so that the two spiral coils 12 with opposite directions of rotation are arranged to ensure the same direction of the magnetic fields generated by the two spiral coils 12, thereby avoiding the situation that the device effect cannot be realized due to different magnetic fields.

According to the invention, two main guide wires 15 are embedded in a fixed plate 4, specifically, the two main guide wires 15 are respectively and electrically connected to the positive and negative electrodes of a power generation mechanism, the lower ends of two conductive rods 9 are electrically connected with the corresponding main guide wires 15 through branch wires 16, the lower end of a threaded rod 5 is provided with a reset mechanism for resetting the threaded rod 5, specifically, the reset mechanism comprises a box body, the box body is fixedly connected to the upper end of the main magnet, the threaded rod 5 rotatably penetrates through the upper side wall of the box body, a coil spring is arranged in the box body, the outer head end of the coil spring is fixedly connected to the inner side wall.

In the invention, the resetting mechanism is arranged, when the fixing plate 4 is pressed to enable the threaded sleeve 6 to move downwards, the threaded rod 5 can simultaneously rotate once and enable the power generation mechanism to generate a primary current, after the movement process of the threaded sleeve 6 is finished, the threaded rod 5 can correspondingly rotate in the reverse direction due to the existence of the resetting mechanism, so that the threaded sleeve 6 can return to the initial position, meanwhile, the power generation mechanism can generate a secondary current in the direction opposite to the primary current due to the reverse rotation of the threaded rod 5, and as the diode can only allow a certain unidirectional current to pass, the occurrence of different currents in two directions conforms to the special electrical property of the LED, namely, a one-time conduction state is necessary in two times, so that the current can be continuously output to the diode twice in opposite directions, and the process of changing the positive and negative poles of the LED lamp base after the primary current identification is not successful is omitted, time is saved, and work efficiency is greatly improved.

In the invention, the lower end of the main conductor 15 is electrically connected with the sliding plate 3, the conductive mechanism is electrically connected with the sliding plate 3 through the copper core 17, the copper core 17 is embedded in the bottom plate 1, the upper end of the copper core 17 extends out of the inner side wall of the sliding cylinder 2 and is flush with the inner side wall of the sliding cylinder 2, and the upper end of the copper core 17 is attached to the inner side wall of the sliding cylinder 2, so that when the sliding plate 3 slides in the sliding cylinder 2 and the position is continuously changed, the electrical connection between the copper core 17 and the sliding plate 3 can still be maintained.

In the invention, the two main guide lines 15 in the fixed plate 4 are communicated to the power generation mechanism through the internal copper core 17 and the sliding plate 3, and the two main guide lines 15 are arranged in a parallel state, so that a plurality of detection mechanisms can be connected in parallel between the two main guide lines 15, and the plurality of detection mechanisms can simultaneously detect the polarity of a plurality of LEDs by pressing the fixed plate 4 once, thereby greatly improving the working efficiency of LED polarity detection.

The invention can be illustrated by the following operating modes: when the LED lamp is used, the LED lamp is arranged between the two placing blocks 14, the pins of the bulb are respectively inserted into the two placing blocks 14, after all the LED lamp is inserted, the fixing plate 4 is pressed downwards, the fixing plate 4 moves downwards to drive the sliding plate 3 and the threaded sleeve 6 to move downwards simultaneously, and the threaded sleeve 6 is in threaded connection with the threaded rod 5, so that the threaded rod 5 starts to rotate once.

At this time (assuming that the polarity of the rightmost auxiliary magnet is N, the magnetic pole of the permanent magnet 13 is also N, and the rotating direction of the threaded rod 5 is as shown in the figure), the threaded rod starts to rotate, the rotation of the threaded rod 5 enables two iron bars to simultaneously start to cut the magnetic wire between the auxiliary magnet and the main magnet, the faraday electromagnetic induction phenomenon is obtained, a downward primary current appears in the iron bar on the right side, an upward primary current appears in the iron bar on the left side, the primary current flows through the copper core 17 to the sliding plate 3, the oil immersion sliding plate 3 is conducted to the main conductor 15 on the right side, the main conductor 15 divides the current into a plurality of branch conductors 16, the current enters the conducting rod 9 from the branch conductor 16 on the right side, and the current enters the friction ring 11 under normal state due to the fact that the friction ring 11 is communicated with the conducting rod 9 under normal state, flows through the spiral coil 12, passes through the connecting rod 19 and, three possibilities arise at this time:

1. when the diode is left negative electrode and right positive electrode and can work, namely the diode is in a conductive state, current flows through the right spiral coil 12 and the diode and returns to the power generation mechanism through the left spiral coil 12 and each loop, the circuit is conducted at the moment, the spiral coils 12 on two sides generate N-pole downward magnetism according to Oersted and right-hand spiral rules, the spiral coils 12 on two sides are attracted upwards by the permanent magnets 13 because the magnetism of the permanent magnets 13 is N, the friction ring 11 is driven to move upwards at the moment, the spiral coils 12, the placing blocks 14, the connecting rods 19 and the diode on the placing block 14 are dragged upwards until the lower end of the friction ring 11 leaves the upper extreme end of the conducting rod 9, and the spiral coils 12 lose magnetism and stop moving because the circuit is blocked after the friction ring 11 leaves the upper extreme end of the conducting rod 9, even if the reset mechanism carries out rotary reset on the threaded rod 5, as the internal circuit of the detection mechanism is blocked, the conduction current can not be generated, the friction ring 11 still keeps in a floating state and can not move during reset operation; it can be seen that, in this state, the left, negative and right diodes in the detection mechanism are all in a floating state (as shown in fig. 3).

2. When the diode is a left anode and a right cathode and can work, namely a circuit is in a non-conductive state, primary current generated by pressing down the fixed plate 4 cannot enable the spiral coil 12 at the upper end to have magnetism, namely, cannot move, after the fixed plate 4 is pressed, the reset mechanism starts to work to reset the threaded rod 5 in a reverse rotation mode, at the moment, the threaded rod 5 starts to rotate in a reverse direction, the threaded sleeve 6 starts to move upwards and drives the sliding plate 3 and the fixed plate 4 to reset, due to the reverse rotation of the threaded rod 5, the direction of the iron rod cutting the magnetic induction line is reversed, at the moment, the left iron rod generates downward current, the right iron rod generates upward current, namely, secondary current, the secondary current flows into the spiral coil 12 from the left side, and as the left side of the diode is a positive electrode, at the moment, the circuit can be conductive, the current flows into, at the moment, because the spiral coils 12 on the two sides generate magnetism with the upward N poles according to the right-hand spiral rule, because the magnetism of the permanent magnet 13 is also N, and the friction ring 11 is in the normal state of the middle part of the supporting rod 8 at the moment, the spiral coils 12 are pushed to move downwards due to the repulsion of like poles until the lower end of the friction ring 11 is abutted against the upper end of the fixed plate 4 until the threaded rod 5 returns to the initial state, the movement is completely stopped, the secondary current disappears, the device is reset and no subsequent movement occurs; it can be concluded that in this state, the left positive and right negative diodes in the detection mechanism are in a sinking state (as shown in fig. 4).

3. When the diode is a defective product, namely the diode cannot work, the circuit is always in an open circuit state, and neither primary current nor secondary current can affect components in the detection mechanism; it can be concluded that in this state the diodes in the detection mechanism that are defective are in an intermediate state (as shown in fig. 1).

In summary, the anode of the diode in the upward floating state is on the right side, the anode of the diode in the downward sinking state is on the left side, and the diode in the intermediate state is a defective product and can be stored in a classified manner.

In the above results and processes, the magnetic pole of the rightmost auxiliary magnet is set to be N pole, and the magnetic pole of the permanent magnet 13 is also set to be N, when the magnetic pole of the inner magnet of the device is changed, after the detection is finished, the position state of the spiral coil 12 is also changed correspondingly, but the form types of the detection result are always kept to be three, namely, the up-floating state, the down-sinking state and the intermediate state, and the LEDs in three different position states can be distinguished no matter how the polarity of the inner magnet is changed.

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 LED polarity detection device based on the ampere rule comprises a bottom plate (1) and is characterized in that two ends of the bottom plate (1) are fixedly connected with sliding cylinders (2), two sliding plates (3) made of conductive materials are slidably connected in the two sliding cylinders (2), the upper ends of the sliding plates (3) are fixedly connected with the same fixed plate (4), a power generation mechanism is arranged at the upper end of the bottom plate (1), a threaded rod (5) is arranged at the upper end of the power generation mechanism, a threaded sleeve (6) is in threaded connection with the threaded rod (5), the threaded sleeve (6) is fixedly connected with the sliding plates (3) through a fixed rod (7), a plurality of detection mechanisms are arranged at the upper ends of the fixed plates (4), each detection mechanism comprises two vertically arranged support rods (8), each support rod (8) comprises a conductive rod (9), and an insulating rod (10) is fixedly connected to the upper ends of the conductive rods, the upper end of the insulating rod (10) is fixedly connected with a permanent magnet (13), the lower end of the spiral coil (12) is electrically connected with the friction ring (11), the upper end of the spiral coil (12) is fixedly connected with a placing block (14) through a connecting rod (19), two main guide lines (15) are embedded in the fixing plate (4), the lower ends of the two conductive rods (9) are electrically connected with the corresponding main guide lines (15) through branch guide lines (16), and the lower end of the threaded rod (5) is provided with a resetting mechanism for resetting the threaded rod (5);

bottom plate (1) upper end is equipped with power generation mechanism, it is concrete, power generation mechanism includes main magnet and two auxiliary magnets of fixed connection in bottom plate (1) upper end, two auxiliary magnets are the symmetry setting with main magnet, be equipped with the iron bar between auxiliary magnet and the main magnet, bar copper fixed connection is passed through to the iron bar upper end, it is concrete, the same becket of fixedly connected with between two bar copper, the becket is fixed to be cup jointed on the threaded rod, then two iron bars can be driven when the threaded rod is rotatory to rotate, iron bar lower extreme sliding connection is in the bottom plate upper end, the bottom plate upper end be equipped with iron bar assorted ring channel, bottom surface fixedly connected with conducting strip in the ring channel, the conducting strip switches on with sliding plate (3) through the copper.

2. The ampere-rule based LED polarity detection device according to claim 1, wherein the two main conducting wires (15) are electrically connected to the positive and negative electrodes of the power generation mechanism respectively.

3. The ampere-rule based LED polarity detection device according to claim 1, wherein the lower end of the fixing plate (4) is fixedly connected with the upper end of the bottom plate (1) through a plurality of telescopic rods (18).

4. The ampere-rule based LED polarity detection device according to claim 1, wherein the lower end of the main conductor (15) is electrically connected with the sliding plate (3), the conductive mechanism is electrically connected with the sliding plate (3) through a copper core (17), and the copper core (17) is embedded in the bottom plate (1).

5. An ampere-rule based LED polarity detection device according to claim 1, characterized in that the two spiral coils (12) have opposite directions of rotation.