Stable protector for output end of LED constant-current power supply

Abstract

The invention relates to a stable protector for an output end of an LED (light-emitting diode) constant-current power supply, which is applied to the field of LED constant-current power supplies and comprises a circuit substrate, an LED lamp processor carried at the upper end of the circuit substrate and connected with a constant-current power supply, and an LED constant-current power supply conduction circuit coated on the circuit substrate, through cooperation of the LED constant current power supply conduction circuit, the LED lamp processor, the magnetic verification assembly and the magnetic push strip, the effect of automatically detecting the stability of the output end of the constant current power supply in the LED lamp in the use process is effectively achieved, the maintenance difficulty of the LED lamp is effectively reduced, and the maintenance efficiency of the LED lamp is improved. The self-detection and fault prediction functions are achieved, continuous application of the LED lamp can be prevented when the fault of the constant-current power supply is detected, the use damage of the LED lamp bead is effectively reduced, the maintenance cost of the LED lamp bead is reduced, and the sustainable development and economic benefits of the application of the LED lamp are promoted.

Description

Technical Field

[0001] The present invention relates to a power supply output terminal stabilization protector, and in particular to an LED constant current power supply output terminal stabilization protector applied in the field of LED constant current power supply. Background Art

[0002] LED constant current power supply output end stability protector is a device used to protect the stability of the LED lamp power supply output end. Its main function is to ensure that the LED lamp obtains a stable working current by adjusting the current output, thereby ensuring the brightness and life of the LED lamp.

[0003] During the use of LED lamps, the instability of the external power supply and the failure of the internal constant current power supply will cause the output instability of the constant current power supply, resulting in flickering of the LED lamps, or even the failure of the LED lamps to start normally, which can easily cause circuit damage to the LED lamps, reduce the service life of the LED lamps, and increase the application cost of the LED lamps.

[0004] In the process of using LED lamps in the prior art, the output instability problem of the constant current power supply in the LED lamp is mostly discovered after the light flickers or fails to start normally. However, at this time, not only the LED lamp beads have been damaged and their service life has been reduced, but also the maintenance cost of the LED lamp has been increased, which is not conducive to the sustainable development and application of LED lamps. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to detect the stability of the output end of the constant current power supply in the LED lamp in advance to reduce the damage of the LED lamp.

[0006] In order to solve the above problems, the present invention provides a stable protector for the output end of an LED constant current power supply, comprising a circuit substrate, an LED lamp processor mounted on the upper end of the circuit substrate and connected to the constant current power supply, and an LED constant current power supply conduction circuit coated on the circuit substrate, a magnetic verification component is also fixedly installed on the circuit substrate, a magnetic push strip matched with the magnetic verification component is also arranged in the magnetic verification component, a constant current power supply conduction processing unit is mounted in the LED lamp processor, an input end of the constant current power supply conduction processing unit is connected to a current sensing unit, a voltage sensing unit, a temperature sensing unit and a power supply verification unit, and an output end of the constant current power supply conduction processing unit is connected to a power supply output end conduction unit;

[0007] The input end of the current sensing unit is connected to the current sensor signal arranged on the circuit substrate, the input end of the voltage sensor is connected to the voltage sensor signal arranged on the circuit substrate, the input end of the temperature sensor is connected to the temperature sensor signal arranged on the circuit substrate, the input end of the power verification unit is connected to the magnetic verification component signal, the output end of the power verification unit is also connected to the magnetic push bar signal, and the output end of the power output conduction unit is connected to the LED constant current power conduction circuit signal.

[0008] In the above-mentioned LED constant current power supply output end stability protector, the autonomous detection function of the output end stability of the internal constant current power supply during the use of the LED lamp is effectively realized, and when a constant current power supply failure is detected, the continuous use of the LED lamp can be prevented, thereby effectively reducing the use damage of the LED lamp beads and reducing their maintenance costs.

[0009] As a supplement to the present application, the magnetic verification component includes a magnetic isolation shell fixedly mounted on the upper end of the circuit substrate and located on the left side of the LED lamp processor, and the left and right ends of the magnetic isolation shell are fixedly connected with conductive contacts, the two conductive contacts are extended into the magnetic isolation shell at one end close to each other, and are fixedly connected with elastic wiring harnesses, and the two elastic wiring harnesses are fixedly connected at one end close to each other with a movable conductive block that slides with the inner wall of the magnetic isolation shell.

[0010] As a supplement to the present application, the output end of the constant current power supply conduction processing unit is also connected to a constant current power supply abnormality alarm unit, and the output end of the constant current power supply abnormality alarm unit is connected to an alarm signal arranged on the circuit substrate.

[0011] As a supplement to the present application, the input end of the constant current power supply conduction processing unit is also connected to a control instruction receiving unit, and the input end of the control instruction receiving unit is connected to the control switch signal.

[0012] As a further improvement of the present application, the power verification unit includes a trigger verification processing module, the input end of the trigger verification processing module is connected to the verification start module and the conduction sensing module, the output end of the trigger verification processing module is connected to the power output connection module, and the output end of the trigger verification processing module is also connected to the constant current power conduction processing unit signal;

[0013] The input end of the verification startup module is connected to the constant current power supply conduction processing unit signal, the input end of the conduction sensing module is connected to the conduction contact block signal, and the output end of the power output connection module is connected to the magnetic push bar signal.

[0014] As a further improvement and supplement to the present application, a magnetic push strip is fixedly connected between the movable conductive block and the inner wall of the magnetic isolation shell close to the conductive contact block, and electromagnetic push blocks are fixedly connected to the left and right inner walls of the magnetic push strip. The output end of the power output connection module is connected to the electromagnetic push block signal, and an elastic sleeve is sleeved on the outer end of the magnetic push strip, and the two ends of the elastic sleeve are respectively fixedly connected to the corresponding movable conductive block and the inner wall of the magnetic isolation shell.

[0015] As a further improvement of the present application, the LED constant current power supply conduction circuit is connected with a Q4MOS tube respectively set at the constant current power supply output end and a Q3MOS tube set at the LED lamp input end, and the output end of the constant current power supply conduction processing unit is also connected to a delayed connection unit, and the output end of the delayed connection unit is respectively connected to the Q4MOS tube and Q3MOS tube signals connected in the LED constant current power supply conduction circuit.

[0016] In summary, through the cooperation of the LED constant current power supply conduction circuit, the LED lamp processor, the magnetic verification component and the magnetic push strip, the output stability of the internal constant current power supply of the LED lamp can be effectively detected during the use of the LED lamp, which effectively reduces the difficulty of maintaining the LED lamp, plays a role of self-detection and fault prediction, and can prevent the continuous use of the LED lamp when a constant current power supply fault is detected, thereby effectively reducing the damage of the LED lamp beads, reducing their maintenance costs, and promoting the sustainable development and economic benefits of LED lamp applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an axonometric view of the circuit substrate of the first and second embodiments of the present application;

[0018] Figure 2 The power control logic diagram of each power source in the LED lamp processor of the first and second implementation modes of this application;

[0019] Figure 3 This is a schematic diagram of the LED constant current power supply conduction circuit of the first and second implementation modes of the present application;

[0020] Figure 4 A top view of a circuit substrate according to the first and second embodiments of the present application;

[0021] Figure 5 This is an axonometric diagram of the magnetic verification assembly of the first and second embodiments of the present application;

[0022] Figure 6 This is an axonometric diagram of the magnetic verification component and the magnetic push bar in the first and second embodiments of the present application when performing power output verification in cooperation;

[0023] Figure 7This is a top view of the cross-sectional view of the first and second embodiments of the present application when the magnetic verification component and the magnetic push bar cooperate to perform power output verification.

[0024] Description of the numbers in the figure:

[0025] 1 circuit substrate, 2 LED lamp processor, 3 magnetic verification component, 31 magnetic isolation shell, 32 conduction contact block, 33 elastic harness, 34 movable conduction block, 4 magnetic push strip, 41 elastic sleeve. DETAILED DESCRIPTION

[0026] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0027] The first implementation method:

[0028] Figure 1-7 The invention shows a circuit substrate 1, an LED lamp processor 2 mounted on the upper end of the circuit substrate 1 and connected to a constant current power supply, and an LED constant current power supply conduction circuit coated on the circuit substrate 1. A magnetic verification component 3 is also fixedly mounted on the circuit substrate 1, and a magnetic push strip 4 matched therewith is also arranged in the magnetic verification component 3. A constant current power supply conduction processing unit is mounted in the LED lamp processor 2, and an input end of the constant current power supply conduction processing unit is connected to a current sensing unit, a voltage sensing unit, a temperature sensing unit and a power supply verification unit, and an output end of the constant current power supply conduction processing unit is connected to a power supply output end conduction unit;

[0029] The input end of the current sensing unit is connected to the current sensor signal arranged on the circuit substrate 1, the input end of the voltage sensor is connected to the voltage sensor signal arranged on the circuit substrate 1, the input end of the temperature sensor is connected to the temperature sensor signal arranged on the circuit substrate 1, the input end of the power verification unit is connected to the magnetic verification component 3 signal, the output end of the power verification unit is also connected to the magnetic push bar 4 signal, and the output end of the power output end conduction unit is connected to the LED constant current power supply conduction circuit signal. Through the cooperation of the LED constant current power supply conduction circuit, the LED lamp processor 2, the magnetic verification component 3 and the magnetic push bar 4, the output end stability of the internal constant current power supply of the LED lamp is effectively detected during the use of the LED lamp, which promotes the protection of the LED lamp, promotes its functionality, effectively reduces the difficulty of maintaining the LED lamp, plays a role of self-detection and fault prediction, and can prevent the continuous application of the LED lamp when a constant current power supply fault is detected, thereby effectively reducing the use damage of the LED lamp beads, reducing its maintenance cost, and promoting the sustainable development and economic benefits of the application of LED lamps.

[0030] Figure 5-7The magnetic verification component 3 is shown to include a magnetic isolation shell 31 fixedly mounted on the upper end of the circuit substrate 1 and located on the left side of the LED lamp processor 2. Both left and right ends of the magnetic isolation shell 31 are fixedly connected with conductive contacts 32. The two conductive contacts 32 are extended into the magnetic isolation shell 31 at one end close to each other, and are fixedly connected with elastic harnesses 33. The two elastic harnesses 33 are fixedly connected at one end close to each other with movable conductive blocks 34 that slide with the inner wall of the magnetic isolation shell 31. The two conductive contacts 32, the elastic harnesses 33 and the movable conductive blocks 34 form a trigger-type conductive circuit, and are connected to the LED constant current power supply conductive circuit in parallel. During the application of the LED lamp, while not affecting the normal use of the LED lamp, the output state of the constant current power supply can be accompanied by verification, thereby effectively improving the sensitivity to abnormal constant current power supply, and forming a timely emergency response, effectively avoiding circuit damage caused by continuous conduction of the LED lamp beads. Figure 1-7 It is shown that the output end of the constant current power supply conduction processing unit is also connected to a constant current power supply abnormality alarm unit, and the output end of the constant current power supply abnormality alarm unit is connected to the alarm signal arranged on the circuit substrate 1. When the constant current power supply conduction processing unit determines that the output end of the constant current power supply is abnormal, the constant current power supply abnormality alarm unit can send an alarm signal to the user to remind him to check the constant current power supply in the LED lamp and stop using the LED lamp to avoid damage to it.

[0031] Figure 1-7 It is shown that the input end of the constant current power supply conduction processing unit is also connected to a control instruction receiving unit, and the input end of the control instruction receiving unit is connected to the control switch signal.

[0032] Figure 1-7 The power verification unit includes a trigger verification processing module, the input end of the trigger verification processing module is connected to the verification start module and the conduction sensing module, the output end of the trigger verification processing module is connected to the power output connection module, and the output end of the trigger verification processing module is also connected to the constant current power conduction processing unit signal;

[0033] The input end of the verification start module is connected to the signal of the constant current power supply conduction processing unit, the input end of the conduction sensing module is connected to the signal of the conduction contact block 32, and the output end of the power output connection module is connected to the signal of the magnetic push strip 4. Through the cooperation of the conduction sensing module and the power output connection module, the output stability of the constant current power supply is effectively verified and feedback is achieved, which effectively promotes the protection of LED lamps, reduces the damage caused to LED lamp beads, extends the service life of LED lamp beads, and effectively improves the functionality of LED lamps. In addition, the verification efficiency of the trigger verification processing module is effectively improved through the setting of dual modules, the conduction time of the LED lamp beads is shortened, and the response efficiency of the LED lamps is ensured.

[0034] Figure 1-7 It is shown that a magnetic push strip 4 is fixedly connected between the movable conductive block 34 and the inner wall of the magnetic isolation shell 31 near the conductive contact block 32, and electromagnetic push blocks are fixedly connected to the left and right inner walls of the magnetic push strip 4. The output end of the power output connection module is connected to the electromagnetic push block signal, and the outer end of the magnetic push strip 4 is sleeved with an elastic sleeve 41, and the two ends of the elastic sleeve 41 are respectively fixedly connected to the corresponding movable conductive block 34 and the inner wall of the magnetic isolation shell 31. The setting of the electromagnetic push block can pre-detect and verify the output power of the constant current power supply, and effectively judge the stability of the constant current power supply power output through the data of the mobile connection effect of the movable conductive block 34, avoid damage to the LED lamp beads during subsequent use, and effectively extend the service life of the LED lamp, and the setting of the elastic sleeve 41 effectively improves the reset efficiency and sensitivity of the magnetic push strip 4, and can cooperate with the electromagnetic push block to realize sensitive and efficient detection of the output state of the constant current power supply.

[0035] Figure 1-7 It is shown that during the use of the LED lamp, the circuit substrate 1 is installed in the LED lamp and connected with the LED lamp beads in the LED. During the use of the LED lamp, the constant current power supply conduction processing unit in the LED lamp processor 2 continuously monitors and collects the current, voltage and temperature changes of the constant current power supply output during the use of the LED lamp through the current sensing unit, the voltage sensing unit and the temperature sensing unit, and can judge these data. When the data is judged to be abnormal, the LED lamp is turned off in time, and the connection line between the constant current and the LED lamp beads is cut off, effectively reducing the damage of the LED lamp beads;

[0036] When the user sends a control instruction to the control instruction receiving unit through the control switch and needs to turn on the LED lamp lighting, the constant current power supply conduction processing unit will receive the control instruction data transmitted by the control instruction receiving unit, and then the constant current power supply conduction processing unit triggers the verification processing module to transmit the verification start signal, triggers the verification processing module to control the power output connection module to start, and transmits the current in the constant current power supply to the electromagnetic push block in the magnetic push strip 4, so that the two electromagnetic push blocks in the same magnetic push strip 4 produce repulsive magnetic forces to resist the elastic contraction of the elastic sleeve 41, and then drives the magnetic push strip 4 to stretch and deform, pushes the two movable conduction blocks 34 to approach and abut each other, and then makes the two conduction contact blocks 32 form conduction, so that the conduction sensing module receives the conduction signal, and then transmits the conduction signal to the trigger verification processing module, the trigger verification processing module analyzes the signal of the continuous conduction of the two conduction contact blocks 32, and then transmits the data of the power supply stability verification to the constant current power supply conduction processing unit;

[0037] When the external power supply and the constant current power supply are normal, the current flowing into the electromagnetic push block is stable, which can effectively maintain the continuous contact of the two active conduction blocks 34, thereby realizing the continuous conduction effect of the two conduction contacts 32, and then judging that the output of the constant current power supply is normal. However, if the output end of the constant current power supply is unstable due to the instability of the external power supply or the failure of the constant current power supply, the repulsive magnetic force generated by the electromagnetic push block is unstable, and then under the continuous elastic recovery effect of the elastic sleeve 41, the active conduction block 34 cannot continue to maintain the abutment contact, and then the two conduction contacts 32 cannot produce a continuous conduction effect, and then judging that the output of the constant current power supply is abnormal.

[0038] After receiving the verification data without abnormality, the constant current power supply conduction processing unit sends a control signal to the power output end conduction unit, so that the power output end conduction unit controls the LED constant current power supply conduction circuit to keep the line between the constant current power supply and the LED lamp bead conductive, thereby making the LED lamp bead light up;

[0039] After receiving the abnormal verification data, the constant current power supply conduction processing unit sends a control signal to the power supply output end conduction unit, so that the power supply output end conduction unit controls the LED constant current power supply conduction circuit to cut off the line between the constant current power supply and the LED lamp beads, so that the LED lamp beads will not be connected to unstable power, which effectively protects the LED lamp beads and reduces the maintenance cost of LED lamps; at the same time, the constant current power supply conduction processing unit also sends an alarm signal to the constant current power supply abnormal alarm unit, so that the constant current power supply abnormal alarm unit starts the alarm and sends an alarm signal to the user, reminding the user to turn off the control switch and restart the control switch after waiting for a period of time, and then the LED lamp processor 2 re-verifies the stability of the constant current power supply output end at this time, and judges that there is no abnormality After that, the LED lamp is started normally. When it is judged that there is a continuous abnormality, an alarm prompt is still issued. The user turns off the control switch and performs maintenance and inspection on the LED lamp. Through the cooperation of the LED constant current power supply conduction circuit, the LED lamp processor 2, the magnetic verification component 3 and the magnetic push strip 4, the output stability of the internal constant current power supply of the LED lamp is effectively detected during the use of the LED lamp, thereby promoting the protection of the LED lamp, promoting its functionality, effectively reducing the difficulty of LED lamp maintenance, playing a role of self-detection and fault prediction, and when a constant current power supply fault is detected, it can prevent the continuous use of the LED lamp, thereby effectively reducing the use damage of the LED lamp beads, reducing its maintenance cost, and promoting the sustainable development and economic benefits of the application of LED lamps.

[0040] Second implementation method:

[0041] Figure 1-7It is shown that the LED constant current power supply conduction circuit is connected with a Q4MOS tube respectively provided with a constant current power supply output end and a Q3MOS tube provided with a LED lamp input end, and the output end of the constant current power supply conduction processing unit is also connected with a delayed connection unit, and the output end of the delayed connection unit is respectively connected with the Q4MOS tube and the Q3MOS tube signal connected in the LED constant current power supply conduction circuit. Through the cooperation of the delayed connection unit and the LED constant current power supply conduction circuit, another stable protection effect is effectively played on the constant current power supply of the LED lamp. When the constant current power supply generates electric energy output, a delayed conduction dummy load can be formed through the Q4MOS tube to consume the initially unstable electric energy, and then the conduction effect of the LED lamp bead is realized through the Q3MOS tube, thereby effectively playing a delayed protection effect, avoiding damage to the LED lamp bead, and further improving the service life of the LED lamp.

[0042] It should be noted that Figure 3 In the LED constant current power supply conduction circuit shown in , the specifications of C1, C4 and C5 are 100nF / 50V, and the specifications of C2 and C3 are 100nF.

[0043] Figure 1-7 It is shown that when the user sends a control instruction to the control instruction receiving unit through the control switch and needs to turn on the LED lamp lighting, the constant current power supply conduction processing unit will receive the control instruction data transmitted by the control instruction receiving unit, and then start the delayed connection unit, first triggering the Q4MOS tube to turn on, so that the Q4MOS tube is turned on for about 100ms, acting as a dummy load, and after the LED constant current power supply enters the normal working state, MOSQ3 is triggered to turn on, the LED lamp beads are started, and the conduction of the Q4MOS tube is cut off at the same time, effectively ensuring that the LED lamp can enter the normal working state, avoiding the light flickering phenomenon caused by direct conduction, reducing the damage rate of the LED lamp beads, and further effectively providing verification time for the power supply verification unit, promoting the self-test function of the LED lamp, and reducing the damage rate of the LED lamp beads.

[0044] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A LED constant current power supply output end stability protector, characterized in that: The invention comprises a circuit substrate (1), an LED lamp processor (2) mounted on the upper end of the circuit substrate (1) and connected to a constant current power supply, and an LED constant current power supply conduction circuit coated on the circuit substrate (1); a magnetic verification component (3) is also fixedly mounted on the circuit substrate (1); a magnetic push bar (4) matched therewith is also arranged in the magnetic verification component (3); a constant current power supply conduction processing unit is mounted in the LED lamp processor (2); an input end of the constant current power supply conduction processing unit is connected to a current sensing unit, a voltage sensing unit, a temperature sensing unit and a power supply verification unit; and an output end of the constant current power supply conduction processing unit is connected to a power supply output end conduction unit; The input end of the current sensing unit is connected to the current sensor signal arranged on the circuit substrate (1), the input end of the voltage sensor is connected to the voltage sensor signal arranged on the circuit substrate (1), the input end of the temperature sensor is connected to the temperature sensor signal arranged on the circuit substrate (1), the input end of the power verification unit is connected to the magnetic verification component (3) signal, the output end of the power verification unit is also connected to the magnetic push bar (4) signal, and the output end of the power output conduction unit is connected to the LED constant current power conduction circuit signal.

2. The LED constant current power supply output end stabilization protector according to claim 1, characterized in that: The magnetic verification component (3) comprises a magnetic shielding shell (31) fixedly mounted on the upper end of the circuit substrate (1) and located on the left side of the LED lamp processor (2); both left and right ends of the magnetic shielding shell (31) are fixedly connected with conductive contacts (32); the two conductive contacts (32) extend into the magnetic shielding shell (31) at one end close to each other and are fixedly connected with an elastic harness (33); the two elastic harnesses (33) are fixedly connected at one end close to each other with a movable conductive block (34) that is slidably matched with the inner wall of the magnetic shielding shell (31).

3. The LED constant current power supply output end stability protector according to claim 2, characterized in that: The power verification unit includes a trigger verification processing module, the input end of the trigger verification processing module is connected to the verification start module and the conduction sensing module, the output end of the trigger verification processing module is connected to the power output connection module, and the output end of the trigger verification processing module is also connected to the constant current power conduction processing unit signal; The input end of the verification start module is connected to the signal of the constant current power supply conduction processing unit, the input end of the conduction sensing module is connected to the signal of the conduction contact block (32), and the output end of the power supply output connection module is connected to the signal of the magnetic push bar (4).

4. The LED constant current power supply output end stabilization protector according to claim 3, characterized in that: A magnetic push bar (4) is fixedly connected between the movable conductive block (34) and the inner wall of the magnetic isolation shell (31) near the conductive contact block (32); electromagnetic push blocks are fixedly connected to the left and right inner walls of the magnetic push bar (4); the output end of the power output connection module is signal-connected to the electromagnetic push block; an elastic sleeve (41) is sleeved on the outer end of the magnetic push bar (4); and the two ends of the elastic sleeve (41) are respectively fixedly connected to the corresponding movable conductive block (34) and the inner wall of the magnetic isolation shell (31).

5. The LED constant current power supply output end stability protector according to claim 1, characterized in that: The LED constant current power supply conduction circuit is connected with a Q4MOS tube respectively provided at the constant current power supply output end and a Q3MOS tube provided at the LED lamp input end. The output end of the constant current power supply conduction processing unit is also connected with a delayed connection unit. The output end of the delayed connection unit is respectively connected with the Q4MOS tube and the Q3MOS tube signal connected in the LED constant current power supply conduction circuit.

6. The LED constant current power supply output end stability protector according to claim 1, characterized in that: The output end of the constant current power supply conduction processing unit is also connected to a constant current power supply abnormality alarm unit, and the output end of the constant current power supply abnormality alarm unit is connected to an alarm signal arranged on a circuit substrate (1).

Images