Multifunctional test box for testing lamp products

Abstract

The utility model discloses a multifunctional test box for testing lamp products, which integrates three sets of test networks, namely a high-frequency protection conductor current weighted test network, a 50K omega non-inductive resistance measurement circuit and a measurement network for sensing or reflecting weighted contact current. Any test network can be selected for testing through the test network selection module, a weighted selection module is arranged in the measurement network for sensing or reflecting the weighted contact current, and selection for testing unweighted contact current and weighted contact current can be realized through the weighted selection module. According to the multifunctional test box, the test efficiency and the test safety of lamp products can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of lamp product test, specifically relates to a multifunctional test box for lamp product test. BACKGROUND

[0002] For the test of lamp products, the following tests are required: the test of whether the conductive part of the lamp product will cause electric shock and the measurement of contact current and protective conductor current of the lamp product.

[0003] However, the existing test process for the above tests needs to rely on the repeated reconnection of the circuit by the test personnel, and the test circuit is exposed to the air without insulation protection during the test process, so the test personnel is easy to touch the live parts, which will affect the efficiency and safety of the test, and the specific effects are as follows:

[0004] 1. After the measurement of contact current and protective conductor current of the lamp product using the high-frequency protective conductor current weighting test network, it is necessary to reconnect the 50KΩ non-inductive resistance measurement circuit and the sensing or reaction weighted contact current measurement network to perform the measurement of contact current and protective conductor current of the lamp product and the test of whether the conductive part of the lamp product will cause electric shock, which will increase the detection workload, prolong the detection time and affect the work efficiency.

[0005] 2. When detecting the measurement of contact current and protective conductor current of the lamp product and the test of whether the conductive part of the lamp product will cause electric shock, the unweighted contact current and weighted contact current are involved in the test, and the sensing or reaction weighted contact current measurement network also needs to be reconnected for testing, which will also increase the detection workload, prolong the detection time and affect the work efficiency.

[0006] 3. When detecting the test of whether the conductive part of the lamp product will cause electric shock and the measurement of contact current and protective conductor current, the test circuit is directly exposed to the air without insulation protection, which increases the risk of electric shock.

[0007] During the detection process, the high-frequency protective conductor current weighting test network, the 50KΩ non-inductive resistance measurement circuit and the sensing or reaction weighted contact current measurement network are required for each detection sample, which will undoubtedly greatly increase the detection workload, prolong the detection time and affect the work efficiency when there is a batch detection task. Therefore, a multifunctional test box needs to be designed to assist the test personnel to improve the test efficiency and test safety. UTILITY MODEL CONTENTS

[0008] The utility model discloses a purpose provides a kind of multifunctional test box for luminaire product test, through it can improve the test efficiency and test safety of luminaire product.

[0009] The utility model discloses a purpose realizes through following technical scheme: a kind of multifunctional test box for luminaire product test, including box body, be provided with test A end, test B end and probe A end and probe B end on the box body, high-frequency protection conductor current weighting test network, 50KΩ non-inductive resistance measurement circuit, the measurement network 3 sets of test networks of perception or reaction weighted contact current are provided in the box body, and test network selection module, the test network selection module includes first selection module and second selection module, one end of 3 sets of test networks is connected in parallel in the test B end, and the other end is connected with the test A end by the first selection module, the test B end is connected with the probe B end, the signal acquisition end of 3 sets of test networks is respectively connected by the second selection module with the probe A end, and the first, second selection module is used to select one test network and the test A end, probe A end communication respectively;

[0010] The measurement network of perception or reaction weighted contact current includes contact current test circuit and weighting selection module, and the two contact current signal acquisition ends of the contact current test circuit without weighting and weighting are connected with the signal acquisition end of the measurement network of perception or reaction weighted contact current through the weighting selection module, and the weighting selection module is used to select one of the two contact current signal acquisition ends and the signal acquisition end of the measurement network of perception or reaction weighted contact current is connected.

[0011] As preferred, the test network of high-frequency protection conductor current weighting is constituted by parallel resistance and capacitor, and one parallel end of the test network is connected with the test B end, and the other parallel end is connected with the first selection module and the second selection module respectively.

[0012] As preferred, the contact current test circuit is composed of first resistance, first capacitor, second resistance, second capacitor and third resistance.

[0013] Between the first selection module and the test B end, the first resistance, the second resistance, the second capacitor are connected in series, the first capacitor is connected in parallel with the first resistance, the third resistance is connected in parallel with the second resistance and the second capacitor as a whole, and the signal acquisition end of the measurement network of perception or reaction weighted contact current is connected with the two ends of the second resistance through the weighting selection module.

[0014] Compared with prior art, the utility model has the following beneficial effects:

[0015] 1) The utility model discloses a lamp product detection, can realize one test network to another test network's switching through test network selection module quickly, still can realize the measurement of unweighted and weighted contact current through weighting selection module quickly, especially when the large batch detection task can save the time of detection personnel reconnecting test circuit to a great extent, thereby realize the effect of reducing detection workload, shortening detection time and improving work efficiency.

[0016] 2) The utility model test network is all arranged in the box body inside, and does not need to reconnect circuit in the test process, and detection personnel only need to connect the measured sample with the test end of the utility model, connect the oscilloscope or power meter with the probe end of the utility model, can realize detection, can greatly reduce the possibility of detection personnel contact live parts, thereby reduce the security risk of detection personnel. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the circuit principle schematic diagram of the utility model's multifunctional test box.

[0018] The meaning of the reference signs in the drawing is as follows:

[0019] 1 - box body, 2 - test network selection module, 3 - high-frequency protective conductor current weighting test network, 4 - 50KΩ non-inductive resistance measurement circuit, 5 - sensing or reaction weighted contact current measurement network, 6 - weighting selection module. DETAILED DESCRIPTION

[0020] The utility model will be further explained in detail in combination with embodiment and its drawing.

[0021] Figure 1 As shown in the figure, it is the multifunctional test box for lamp product test of the embodiment.

[0022] Box body 1 one end is provided with test A end and test B end, and the other end is provided with probe A end and probe B end. The box body 1 is provided with 3 big test networks inside, respectively: high-frequency protective conductor current weighting test network 3, 50KΩ non-inductive resistance measurement circuit 4, sensing or reaction weighted contact current measurement network 5, and the box body is also provided with test network selection module 2, which is composed of the first selection module connected with test A end below and the second selection module connected with probe A end above (here, below, above is only for the embodiment, and the utility model discloses the test network selection module can be connected with test A end or probe A end, and the utility model discloses the test network selection module can be connected with test B end or probe B end). Figure 1

[0023] ​3 large test network is connected in parallel to test B end, and the other end is connected to test A end through the first selection module. The first selection module is a single-pole three-throw switch, which is used to select one of the test network and test A end to be connected. Test B end is connected to probe B end. Probe A end is connected to the signal collection end of 3 large test network through the second selection module. The second selection module is also a single-pole three-throw switch, which is used to select one of the test network and probe A end to be connected.

[0024] The measurement network 5 for sensing or reacting weighted contact current includes a contact current test circuit and a weighting selection module 6, and the two contact current signal collection ends of the contact current test circuit Figure 1 The two ends of the 10KΩ resistor are connected to the signal collection end a of the measurement network 5 for sensing or reacting weighted contact current through the weighting selection module 6, and the weighting selection module 6 is used to select one of the two contact current signal collection ends to be connected to the signal collection end a of the measurement network 5 for sensing or reacting weighted contact current. Figure 1 The two ends of the 10KΩ resistor are connected to the signal collection end a of the measurement network 5 for sensing or reacting weighted contact current through the weighting selection module 6, and the weighting selection module 6 is used to select one of the two contact current signal collection ends to be connected to the signal collection end a of the measurement network 5 for sensing or reacting weighted contact current.

[0025] In this embodiment, the high-frequency protection conductor current weighted test network 3 is composed of a 150Ω resistor and a 1.5μF capacitor in parallel.

[0026] The 50KΩ non-inductive resistance measurement circuit 4 is composed of a 50KΩ resistor.

[0027] The measurement network 5 for sensing or reacting weighted contact current is composed of a 1.5KΩ resistor, a 0.22μF capacitor, a 10KΩ resistor, a 0.022μF capacitor, a 0.5KΩ resistor and a weighting selection module 6. Among them, the 1.5KΩ resistor is connected in series with the 10KΩ resistor and the 0.022μF capacitor, the 0.22μF capacitor is connected in parallel with the 1.5KΩ resistor, the 0.5KΩ resistor is connected in parallel with the 10KΩ resistor and the 0.022μF capacitor, and the weighting selection module 6 is a single-pole double-throw switch, and the two moving connection points are connected to the two ends of the 10KΩ resistor.

[0028] The process of testing the lamp product by using the multifunctional test box of this embodiment is as follows:

[0029] 1. When the "measurement of contact current and protection conductor current" of the lamp product is performed, among them, when the protection conductor current is measured, the measured sample (lamp product) is connected with the power supply, at the same time, test A end is connected with the protection ground conductor of the measured sample, test B end is connected with the ground connection of the power supply, and probe A and B ends are connected with the oscilloscope or power meter, then the test can be started. During the test, the high-frequency protection conductor current weighted test network 3 is selected through the test network selection module 2, and then the measured voltage is read through the oscilloscope or power meter on the probe A and B ends, or the protection conductor current is calculated.

[0030] 2. When performing the "measurement of contact current and protective conductor current" and the "test to determine whether conductive parts will cause electric shock" for lighting products, the contact current measurement requires connecting test terminal A to the accessible metal part or protective grounding conductor of the sample under test (lighting product), and connecting test terminal B to the conductive part of the sample under test (lighting product). Probes A and B are also connected to an oscilloscope or power meter, and then the test is started again. During the test, the 50KΩ non-inductive resistance measurement circuit 4 is selected through test network selection module 2, and the measured voltage is read through the oscilloscope or power meter on probes A and B to determine whether the conductive parts will cause electric shock. Then, the measurement network 5 for sensing or responding to the weighted contact current is selected through the test network selection module 2. The measurement voltage is then read through the oscilloscope or power meter on probes A and B to calculate the contact current and determine whether the conductive parts will cause electric shock. During the test, the switch of the weighted selection module 6 can be switched to "0" and "I" as needed. The measurement voltage can be read through the oscilloscope or power meter to measure the voltage of the unweighted contact current and the weighted contact current respectively. The unweighted contact current and the weighted contact current can then be calculated.

[0031] The sample being tested can be the lighting product being tested or the light source control device of the lighting product.

[0032] As can be seen from the above, when using this utility model to test lighting products, the test network selection module can quickly switch from one test network to another, and the weighted selection module can quickly measure unweighted and weighted contact currents. Especially in large-scale testing tasks, it can greatly save the time of testing personnel to reconnect test circuits, thereby reducing the workload of testing, shortening the testing time and improving work efficiency.

[0033] In addition, since the test network of this utility model is set inside the box, and there is no need to reconnect the circuit during the test, the tester only needs to connect the sample to be tested to the test end of this utility model, and connect the oscilloscope or power meter to the probe end of this utility model to realize the test. This can greatly reduce the possibility of the tester coming into contact with live parts, thereby reducing the safety risk of the tester.

[0034] It should be stated that the above embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of protection of the present utility model. All other modifications, substitutions or alterations made to the above structure of the present utility model based on the above content of the present utility model and in accordance with ordinary technical knowledge and common practices in the field, without departing from the basic technical idea of ​​the present utility model, shall fall within the scope of protection of the present utility model.

Claims

1. A multifunctional test box for testing lighting products, characterized in that, The device includes a housing, on which are provided a test A terminal, a test B terminal, and probe A and probe B terminals. Inside the housing are three sets of test networks: a high-frequency protective conductor current-weighted test network, a 50KΩ non-inductive resistance measurement circuit, and a sensing or reaction-weighted contact current measurement network, as well as a test network selection module. The test network selection module includes a first selection module and a second selection module. One end of each of the three test networks is connected in parallel to the test B terminal, and the other end is connected to the test A terminal through the first selection module. The test B terminal is connected to the probe B terminal, and the probe A terminal is connected to the signal acquisition terminals of the three test networks through the second selection module. The first and second selection modules are used to select one test network to connect to the test A terminal and the probe A terminal, respectively. The sensing or reaction weighted contact current measurement network includes a contact current testing circuit and a weighting selection module. The unweighted and weighted contact current signal acquisition terminals of the contact current testing circuit are connected to the signal acquisition terminals of the sensing or reaction weighted contact current measurement network through the weighting selection module. The weighting selection module is used to select one of the two contact current signal acquisition terminals to be connected to the signal acquisition terminal of the sensing or reaction weighted contact current measurement network.

2. The multifunctional test kit according to claim 1, characterized in that, The high-frequency protective conductor current-weighted test network consists of parallel resistors and capacitors. One parallel terminal of the test network is connected to the test terminal B, and the other parallel terminal is connected to the first selection module and the second selection module respectively.

3. The multifunctional test kit according to claim 1, characterized in that, The contact current test circuit consists of a first resistor, a first capacitor, a second resistor, a second capacitor, and a third resistor. Between the first selection module and the test B terminal, the first resistor, the second resistor, and the second capacitor are connected in series in sequence, the first capacitor is connected in parallel with the first resistor, and the third resistor, the second resistor, and the second capacitor are connected in parallel as a whole. The signal acquisition terminal of the measurement network for sensing or responding to weighted contact current is connected to both ends of the second resistor through the weighted selection module.

Images