CN219533360U - LED lamp current detection equipment - Google Patents
LED lamp current detection equipment Download PDFInfo
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- CN219533360U CN219533360U CN202320658455.7U CN202320658455U CN219533360U CN 219533360 U CN219533360 U CN 219533360U CN 202320658455 U CN202320658455 U CN 202320658455U CN 219533360 U CN219533360 U CN 219533360U
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Abstract
The utility model relates to a LED lamp current detection device, comprising: the power supply device comprises power supply units and power supply switches, the number of the power supply units is more than two, the output voltages of at least two power supply units are different, and the power supply switches are connected with the power supply units and the LED lamp; the current sensing device comprises a plurality of direct current sensors with different measuring ranges, and the direct current sensors are connected with the LED lamp. When the LED lamp is subjected to current detection, a required power supply unit can be selected to supply power to the LED lamp according to the type of the LED lamp, and a direct current sensor with a corresponding measuring range is adopted to carry out current detection, so that the current detection of the LED lamps with different types can be met, and the use convenience is improved.
Description
Technical Field
The utility model relates to the technical field of LED lamps, in particular to LED lamp current detection equipment.
Background
With the development of technology and the continuous progress of society, the development of the lighting industry of LEDs (Light Emitting Diode, light emitting diodes) has been rapidly developed, and with the rising energy conservation consciousness of the global masses, and with relatively high electricity prices, LED lighting is continuously introduced into the fields of construction and business applications, so that the development of various LED lamps has gradually become one of the main works of LED lamp manufacturers for coping with the different application characteristics of multiple environments and multiple fields.
The current detection is needed before the LED lamp leaves the factory, the traditional current detection mode of the LED lamp adopts a universal meter with the function similar to a universal meter to measure the direct current of the LED lamp, and the universal meter has the defects of single function and poor use convenience.
Disclosure of Invention
In view of the above, it is necessary to provide an LED lamp current detection device that can improve the convenience of use.
An LED luminaire current detection device comprising:
the power supply device comprises power supply units and power supply switches, the number of the power supply units is more than two, the output voltages of at least two power supply units are different, and the power supply switches are connected with the power supply units and the LED lamps;
the current sensing device comprises a plurality of direct current sensors with different measuring ranges, and the direct current sensors are connected with the LED lamp.
In one embodiment, the LED lamp current detection apparatus further includes a detection device and an interaction device, the detection device is connected to each of the dc current sensors, and the interaction device is connected to the detection device.
In one embodiment, the detection device comprises an analog-to-digital converter and a PLC, wherein the analog-to-digital converter is connected with each direct current sensor, and the PLC is connected with the analog-to-digital converter and the interaction device.
In one embodiment, the current sensing device further includes detection switches, the number of the detection switches is the same as the number of the direct current sensors, and each direct current sensor is connected to the LED lamp through one detection switch.
In one embodiment, the detection switch is a relay.
In one embodiment, the interaction device is a touch screen.
In one embodiment, the power supply unit is further connected to the detection means and the interaction means.
In one embodiment, the power supply unit includes a first power supply unit, a second power supply unit, and a third power supply unit, where the first power supply unit and the second power supply unit are connected to the power supply switch, and the third power supply unit is connected to the detection device and the interaction device; the output voltage of the second power supply unit is larger than that of the first power supply unit, and the output voltage of the third power supply unit is the same as that of the second power supply unit.
In one embodiment, the number of the power supply switches is two, and the first power supply unit and the second power supply unit are respectively connected with the LED lamp through one power supply switch.
In one embodiment, the power switch is a relay.
According to the LED lamp current detection equipment, the power supply units with different output voltages are arranged in the power supply device, the direct current sensors with different measuring ranges are arranged in the current sensing device, when the LED lamp is subjected to current detection, the required power supply unit can be selected to supply power to the LED lamp according to the type of the LED lamp, and the direct current sensors with corresponding measuring ranges are adopted for current detection, so that the current detection of the LED lamp with different types can be met, and the use convenience is improved.
Drawings
Fig. 1 is a schematic structural diagram of an LED lamp current detection device in one embodiment.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
It will be understood that the terms first, second, etc. as used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element. For example, a first resistance may be referred to as a second resistance, and similarly, a second resistance may be referred to as a first resistance, without departing from the scope of the utility model. Both the first resistor and the second resistor are resistors, but they are not the same resistor.
It is to be understood that in the following embodiments, "connected" is understood to mean "electrically connected", "communicatively connected", etc., if the connected circuits, modules, units, etc., have electrical or data transfer between them.
As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.
In one embodiment, an LED lamp current detection device is provided, which is suitable for on-line DC current detection of diversified and wide-voltage DC power supply of an LED lamp. As shown in fig. 1, the LED lamp current detection apparatus includes a power supply device 110 and a current sensing device 120, wherein: the power supply device 110 includes power supply units and power supply switches, the number of the power supply units is more than two, and the output voltages of at least two power supply units are different, and the power supply switches are connected with the power supply units and the LED lamp. The current sensing device 120 includes a plurality of dc current sensors with different ranges, and the dc current sensors are connected to the LED lamp.
Specifically, the number of the power supply units and the number of the direct current sensors are not unique, and the power supply units may be two, three or more, and the number of the direct current sensors may be two, three or more. For example, the power supply unit may include a first power supply unit U1, a second power supply unit U2, and a third power supply unit U3, and the direct current sensor may include a direct current sensor TRANS1, a direct current sensor TRANS2, and a direct current sensor TRANS3. The specific types of the power supply unit and the direct current sensor are not unique, and can be selected according to actual needs. The power supply switch in the power supply device 110 is connected with each power supply unit and is also connected with the anode of the LED lamp. The type of the power supply switch is not unique, and the power supply switch can be a manual change-over switch; the power supply switch can also be an electric control switch, and the on-off switching is carried out according to the received signal. In addition, the structure of the power supply switch is not unique, and the power supply switch can be a multi-channel change-over switch for switching different power supply units to be connected with the LED lamp for supplying power; the power supply switch may be a single-channel switch, and the power supply channels are switched by configuring a plurality of power supply switches.
In addition, the LED lamp current detection equipment further comprises a detection device and an interaction device, wherein the detection device is connected with each direct current sensor, and the interaction device is connected with the detection device. Correspondingly, the power supply unit can also be connected with the detection device and the interaction device to supply power to the detection device and the interaction device. The direct current sensor is connected with the cathode of the LED lamp, converts a direct current signal of the LED lamp into a direct current voltage signal of 0-10V, outputs the direct current voltage signal to the detection device, converts an analog direct current voltage signal into a digital signal, determines a current actual measurement value based on the digital signal, and outputs a detection result to the interaction device for display according to the current actual measurement value.
According to the LED lamp current detection equipment, when the LED lamp is subjected to current detection, the required power supply unit can be selected to supply power to the LED lamp according to the type of the LED lamp, and the direct current sensor with the corresponding measuring range is adopted for current detection, so that the current detection of the LED lamps with different types can be met, and the use convenience is improved.
In one embodiment, as shown in fig. 1, the detection device includes an analog-to-digital converter (Analogue to Digital Conversion, ADC) and a PLC (Programmable Logic Controller ), the analog-to-digital converter is connected to each dc current sensor, and the PLC is connected to the analog-to-digital converter and the interaction device. In this embodiment, the interaction device may use a touch screen HMI, so as to facilitate man-machine interaction. The analog direct-current voltage signal is converted into a digital signal through an analog-to-digital converter and is sent to the PLC, the PLC determines a current actual measurement value based on the digital signal, a detection result is obtained according to the current actual measurement value, and the detection result is sent to the touch screen HMI for display. Further, the detection device may further include a switch AN1 and a switch AN2 connected to the PLC. It will be appreciated that in other embodiments, the analog-to-digital converter may also be an AD conversion module that is self-contained in the PLC.
In one embodiment, the power supply unit comprises a first power supply unit U1, a second power supply unit U2 and a third power supply unit U3, wherein the first power supply unit U1 and the second power supply unit U2 are connected with a power supply switch, and the third power supply unit U3 is connected with a detection device and an interaction device; the output voltage of the second power supply unit U2 is greater than the output voltage of the first power supply unit U1, and the output voltage of the third power supply unit U3 is the same as the output voltage of the second power supply unit U2. Correspondingly, the number of the power supply switches is two, and the first power supply unit U1 and the second power supply unit U2 are respectively connected with the LED lamp through one power supply switch. In the embodiment, the power supply switch is a relay, so that on-off control is convenient.
As shown in fig. 1, the power supply device 110 further includes a switch K1, one end of the switch K1 is connected to 220V ac, and the other end of the switch K1 is connected to the first power supply unit U1, the second power supply unit U2, and the third power supply unit U3, where the first power supply unit U1, the second power supply unit U2, and the third power supply unit U3 process the 220V ac, and output corresponding dc. In the embodiment, the output voltage of the first power supply unit U1 is 12V, the output voltages of the second power supply unit U2 and the third power supply unit U3 are 24V, the power supply switch comprises a relay J1 and a relay J2, a coil of the relay J1 is connected with the PLC, one end of a contact switch of the relay J1 is connected with the first power supply unit U1, and the other end of the contact switch of the relay J1 is connected with an anode of the LED lamp; the coil of the relay J2 is connected with the PLC, one end of a contact switch of the relay J2 is connected with the second power supply unit U2, and the other end of the contact switch is connected with the anode of the LED lamp. The PLC can control the on-off of the relay J1 and the relay J2 according to the specific model of the LED lamp, the first power supply unit U1 or the second power supply unit U2 is selected to supply power to the LED lamp, and the third power supply unit U3 is used for supplying power to the touch screen HMI, the analog-to-digital converter and the PLC.
Specifically, the PLC may directly send the current actually measured value to the interaction device as a detection result for display, or may compare the current actually measured value with the configured current upper/lower limit value to make a judgment and warn, and send the current actually measured value and the early warning information to the interaction device as a detection result when the current actually measured value exceeds the current upper limit value or the current lower limit value. Also taking the touch screen HMI as an example of the interaction device, an operator can select and switch LED lamps of different models through the touch screen HMI, and the PLC configures corresponding current upper/lower limit values and power supply voltages according to the selected lamp models. The configuration data of the LED lamp can be edited and modified on the touch screen HMI, and the power failure is kept. When in online detection, the test can be automatically or manually started, the actual measurement value of the current is displayed on the touch screen, and an audible and visual alarm can be generated when the actual measurement value exceeds the upper limit or the lower limit. If the short circuit of the LED lamp is detected, the detection is directly stopped and the alarm is given.
In addition, for the multiple functions of the multifunctional LED lamp, the PLC can also automatically detect the corresponding current values in sequence, judge whether the lamp is qualified according to the configuration data, carry out audible and visual alarm on unqualified products, and directly exit detection and alarm if the lamp is short-circuited.
In one embodiment, the current sensing device 120 further includes a detection switch, the number of the detection switches is the same as the number of the dc current sensors, and each dc current sensor is connected to the LED lamp through a detection switch. Likewise, the detection switch can be a manual change-over switch or an electric control switch, and in this embodiment, the detection switch is a relay, so that on-off control is convenient.
Specifically, as shown in fig. 1, taking a direct current sensor including a direct current sensor TRANS1, a direct current sensor TRANS2 and a direct current sensor TRANS3 as an example, the detection switch includes a relay J3, a relay J4 and a relay J5, a coil of the relay J3 is connected with a PLC, one end of a contact switch of the relay J3 is connected with a cathode of the LED lamp, the other end is connected with the direct current sensor TRANS1, a coil of the relay J4 is connected with the PLC, one end of a contact switch of the relay J4 is connected with the cathode of the LED lamp, the other end is connected with the direct current sensor TRANS2, a coil of the relay J5 is connected with the PLC, one end of a contact switch of the relay J5 is connected with the cathode of the LED lamp, and the other end is connected with the direct current sensor TRANS3.
When current detection is performed, the current of the LED lamp corresponds to the corresponding sensor range, namely, corresponding lamp detection is performed according to the lamp model configured on the touch screen. If the configured wide-range sensor is used for detecting the low-current lamp, errors can occur in the detection result, and if the configured wide-range sensor is used for detecting the high-current lamp, the current sensor can be damaged. For example, a large-current LED lamp model is selected on a touch screen, but in practice, small-current signal lamp detection is carried out, so that errors can occur; the small-current LED lamp model is selected on the touch screen, and the current sensor is possibly damaged by actually detecting the large-current working lamp. In this embodiment, 3 dc current sensors of different ranges are configured according to different currents. The PLC selects a direct current sensor with a corresponding measuring range for detection according to the actual model of the LED lamp or different testing functions so as to improve the sampling precision.
The direct current sensor TRANS1, the direct current sensor TRANS2 and the direct current sensor TRANS3 can adopt special direct current sampling and transmitting modules, and the PLC sets upper and lower limit values of current according to the selected lamp model and then performs on-off control on corresponding detection switches, so that the direct current sensor meeting the range requirement works, converts a direct current signal into a direct current voltage signal, then transmits the direct current voltage signal to an analog-to-digital converter to convert the analog direct current voltage signal into a digital signal, finally, the PLC determines a current actual measurement value according to the digital signal, and judges and warns according to comparison between the current actual measurement value and the configured upper and lower limit values of current.
The LED lamp has multiple product models, high-power working lamps, and various low-power signal lamps and identification lamps. The LED lamp has a DC12V power supply and also has a DC24V power supply. The high-power working lamp has various models and corresponds to different working currents. The same is true of the low-power signal lamp and the identification lamp, and the low-power signal lamp and the identification lamp also have multiple functions of stopping, turning and profile indication, and the current value corresponding to each function is different. The current universal current detection instrument has single function, is not visual, is not suitable for on-line detection in an operation mode, cannot meet the diversified requirements of the LED lamp, and cannot meet the requirements of on-line direct current detection in practicality.
The LED lamp current detection equipment provided by the utility model can be used for configuring current data and test schemes of various LED lamps on the touch screen and carrying out on-line detection, so that the problem that a general instrument cannot detect the current of the LED lamps on line is thoroughly solved.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. An LED luminaire current detection device, comprising:
the power supply device comprises power supply units and power supply switches, the number of the power supply units is more than two, the output voltages of at least two power supply units are different, and the power supply switches are connected with the power supply units and the LED lamps;
the current sensing device comprises a plurality of direct current sensors with different measuring ranges, and the direct current sensors are connected with the LED lamp.
2. The LED luminaire current detection device of claim 1, further comprising a detection means connected to each of said dc current sensors and an interaction means connected to said detection means.
3. The LED luminaire current detection device of claim 2, wherein said detection means comprises an analog-to-digital converter and a PLC, said analog-to-digital converter being connected to each of said dc current sensors, said PLC being connected to said analog-to-digital converter and said interaction means.
4. The LED lamp current detection apparatus according to claim 3, wherein the current sensing device further comprises detection switches, the number of the detection switches is the same as the number of the dc current sensors, and each of the dc current sensors is connected to the LED lamp through one of the detection switches.
5. The LED luminaire current detection device of claim 4, wherein the detection switch is a relay.
6. The LED luminaire current detection device of claim 2, wherein the interaction means is a touch screen.
7. The LED luminaire current detection device of claim 2, wherein said power supply unit is further connected to said detection means and said interaction means.
8. The LED luminaire current detection device of claim 7, wherein said power supply unit comprises a first power supply unit, a second power supply unit and a third power supply unit, said first power supply unit and said second power supply unit being connected to said power supply switch, said third power supply unit being connected to said detection means and said interaction means; the output voltage of the second power supply unit is larger than that of the first power supply unit, and the output voltage of the third power supply unit is the same as that of the second power supply unit.
9. The LED lamp current detection apparatus according to claim 8, wherein the number of the power supply switches is two, and the first power supply unit and the second power supply unit are connected to the LED lamp through one of the power supply switches, respectively.
10. The LED luminaire current detection device of any one of claims 1-9, wherein the power switch is a relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320658455.7U CN219533360U (en) | 2023-03-29 | 2023-03-29 | LED lamp current detection equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320658455.7U CN219533360U (en) | 2023-03-29 | 2023-03-29 | LED lamp current detection equipment |
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| CN219533360U true CN219533360U (en) | 2023-08-15 |
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| CN202320658455.7U Active CN219533360U (en) | 2023-03-29 | 2023-03-29 | LED lamp current detection equipment |
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- 2023-03-29 CN CN202320658455.7U patent/CN219533360U/en active Active
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