Testing device

Abstract

The utility model provides a testing device used for testing a switching power supply to be tested, and the testing device comprises a box body which is at least provided with a first testing terminal and a second testing terminal, and the first testing terminal and the second testing terminal are used for connecting an external load instrument; a to-be-tested switching power supply is installed in the box body. The power-on socket is electrically connected with the to-be-tested switching power supply; the discharge resistor is provided with a first pin wire and a second pin wire, the first pin wire is connected to the first test terminal, and the second pin wire is connected to the second test terminal; a first switch is arranged on the first pin wire or the second pin wire; the first electronic wire is used for connecting the first test terminal and the to-be-tested switching power supply, and the second electronic wire is used for connecting the second test terminal and the to-be-tested switching power supply. The problem that the switch power supply is exposed in the testing process and the danger is large is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic test equipment, and particularly relates to a test device. BACKGROUND

[0002] The switch power supply needs to be tested in the research and development selection and purchase inspection.

[0003] At present, the test engineer needs to wait for the capacitor in the switch power supply to be fully discharged before taking down the switch power supply after testing the switch power supply, the waiting time is long in the discharging process, there is a risk of slow and incomplete discharging, and personnel may be electrocuted due to slight negligence.

[0004] If a faulty switch power supply is encountered during the test process, there is a risk of device breakdown and ejection, which may cause personal injury, and if the switch power supply is exposed during the test process, there is a risk of high-voltage electric shock, which greatly reduces the safety factor and efficiency during the test process. CONTENT OF THE UTILITY MODEL

[0005] Therefore, the purpose of the present application is to provide a test device which can ensure the safety during switching.

[0006] In order to achieve the above purpose, the present application provides a test device for testing a switch power supply to be tested, which comprises:

[0007] A box body, at least a first test terminal and a second test terminal are arranged on the box body, the first test terminal and the second test terminal are used to connect an external load instrument;

[0008] The switch power supply to be tested is installed in the interior of the box body;

[0009] A power supply socket, which is electrically connected with the switch power supply to be tested;

[0010] A discharge resistor, which is provided with a first pin line and a second pin line, the first pin line is connected to the first test terminal, and the second pin line is connected to the second test terminal;

[0011] A first switch is arranged on the first pin line or the second pin line;

[0012] A first electronic line and a second electronic line, the first electronic line is used to connect the first test terminal and the switch power supply to be tested, and the second electronic line is used to connect the second test terminal and the switch power supply to be tested.

[0013] In one of the embodiments, the test device further comprises:

[0014] a first shorting assembly, the first shorting assembly comprising a first switch assembly and an output port, the first switch assembly shorting the first test terminal and the second test terminal when in a closed state;

[0015] a second shorting assembly, the second shorting assembly comprising a second switch assembly and an input port, the second shorting assembly being connected to the energized socket and the switch mode power supply under test;

[0016] the output port and the input port are respectively used to connect two ends of an external voltage withstand tester.

[0017] In one embodiment, the first shorting assembly comprises:

[0018] a third electronic line, two ends of the third electronic line being respectively connected to the first test terminal and the second test terminal;

[0019] a third test terminal and a fourth electronic line, two ends of the fourth electronic line being respectively connected to the second test terminal and the third test terminal, the output port being arranged at an opening of the third test terminal towards the outside of the box body;

[0020] the first switch assembly comprises a second switch and a third switch, the second switch being used to control the on-off of the third electronic line, the third switch being used to control the on-off of the fourth electronic line.

[0021] In one embodiment, the first shorting assembly further comprises:

[0022] a positive voltage connection line, one end of the positive voltage connection line being connected to the first test terminal, the other end of the positive voltage connection line being provided with a positive voltage test clamp, the positive voltage test clamp being used to connect a positive pole of the load tester;

[0023] a negative voltage connection line, one end of the negative voltage connection line being connected to the second test terminal, the other end of the negative voltage connection line being provided with a negative voltage test clamp, the negative voltage test clamp being used to connect a negative pole of the load tester;

[0024] the first electronic line is connected to a positive pole of the switch mode power supply under test, and the second electronic line is connected to a negative pole of the switch mode power supply under test.

[0025] In one embodiment, the second shorting assembly comprises:

[0026] a fourth test terminal, the fourth test terminal connecting a live wire of the energized socket and a live wire of the switch mode power supply under test;

[0027] a fifth test terminal, the fifth test terminal connecting a zero wire of the energized socket and a zero wire of the switch mode power supply under test;

[0028] a fifth electronic line connecting the fourth test terminal and the fifth test terminal;

[0029] a sixth test terminal and a sixth electronic line connecting the fifth test terminal and the sixth test terminal;

[0030] The second switch assembly comprises a fourth switch and a fifth switch, the fourth switch being used for controlling the on-off of the fifth electronic line, and the fifth switch being used for controlling the on-off of the sixth electronic line.

[0031] In one embodiment, the box body comprises:

[0032] a bottom plate, on which the switch power supply to be tested and the discharge resistor are installed;

[0033] a first side plate, a second side plate, a third side plate and a fourth side plate, the first side plate being opposite to the third side plate, and the second side plate being opposite to the fourth side plate;

[0034] the port of the first test terminal, the port of the second test terminal and the output port being arranged on the first side plate and facing the outside of the box body;

[0035] the input port being arranged on the third side plate and facing the outside of the box body;

[0036] the opening of the power-on socket being arranged on the second side plate and facing the outside of the box body.

[0037] In one embodiment, the test device further comprises:

[0038] a cover plate, which is opposite to the bottom plate and is hingedly connected to the box body.

[0039] In one embodiment, the cover plate is arranged as a transparent acrylic plate.

[0040] In one embodiment, one side of the cover plate is hingedly connected to any one of the first side plate, the second side plate, the third side plate and the fourth side plate.

[0041] In one embodiment, the test device further comprises:

[0042] a handle, which is installed on the cover plate.

[0043] From the above, it can be seen that the test device provided by the application improves safety by setting the switch power supply to be tested in the inside of the box body, so as to isolate the switch power supply to be tested from the outside. The first test terminal and the second test terminal are connected with the load instrument outside, and after the switch power supply to be tested is powered on, the load instrument can test the performance of the switch power supply to be tested. In addition, the discharge resistor is connected with the first test terminal and the second test terminal, and after the test is completed, the discharge speed is accelerated, so as to improve the safety and efficiency of the test. BRIEF DESCRIPTION OF DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the application or the related art, the drawings needed to be used in the embodiments or the related art description will be briefly introduced. Obviously, the drawings in the following description are only embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0045] Figure 1 It is a structural schematic diagram of the test device in an embodiment of the application.

[0046] Figure 2 It is a structural schematic diagram of the test device in an embodiment of the application when testing.

[0047] Figure 3 It is a structural schematic diagram of the box body in an embodiment of the application.

[0048] REFERENCE NUMERALS

[0049] 10, switch power supply to be tested; 20, load instrument; 30, voltage withstand tester; 100, box body; 110, bottom plate; 120, first side plate; 130, second side plate; 140, third side plate; 150, fourth side plate; 210, first test terminal; 220, second test terminal; 300, power supply socket; 400, discharge resistor; 410, first pin; 420, second pin; 430, first switch; 510, first electronic line; 520, second electronic line; 610, third electronic line; 620, third test terminal; 630, fourth electronic line; 640, second switch; 650, third switch; 660, output port; 710, positive voltage connection line; 720, negative voltage connection line; 810, fourth test terminal; 820, fifth test terminal; 830, fifth electronic line; 840, sixth test terminal; 850, sixth electronic line; 860, fourth switch; 870, fifth switch; 880, input port. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solutions and advantages of the application more clear, the application will be further described in detail below in combination with specific embodiments and with reference to the drawings.

[0051] It should be noted that, unless otherwise defined, technical terms or scientific terms used in the embodiments of the present application shall have the common meaning understood by one of ordinary skill in the art to which the present application pertains. The terms "first", "second", and similar terms used in the embodiments of the present application do not denote any order, quantity, or importance, but are merely used to distinguish different components. The terms "include", "contain", and similar terms mean that the elements or objects before the terms encompass the elements or objects listed after the terms and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and similar terms do not mean physical or mechanical connection, but can include electrical connection, whether direct or indirect. The terms "upper", "lower", "left", "right", and the like are merely used to indicate relative positional relationships, and when the absolute positions of the described objects are changed, the relative positional relationships can also be changed accordingly.

[0052] Referring to Figure 1 An embodiment of the present application provides a test device, which comprises a box body 100, and a switch power supply 10 to be tested is installed in the interior of the box body 100. The test process is carried out in the box body 100, and the box body 100 is isolated from the outside world, thereby improving the safety of the test process.

[0053] As shown in Figure 2 The box body 100 is provided with at least a first test terminal 210 and a second test terminal 220, and the first test terminal 210 and the second test terminal 220 are used to connect an external load instrument 20. A first electronic wire 510 and a second electronic wire 520 are further provided, the first electronic wire 510 is used to connect the first test terminal 210 and the switch power supply 10 to be tested, the second electronic wire 520 is used to connect the second test terminal 220 and the switch power supply 10 to be tested, and a power socket 300 is electrically connected with the switch power supply 10 to be tested.

[0054] As shown in Figure 2 When the performance of the switch power supply 10 to be tested is tested, the load instrument 20 is plugged into the first test terminal 210 and the second test terminal 220, and after the power socket 300 is powered on, the current passes through the power socket 300 to the switch power supply 10 to be tested, and then enters the load instrument 20 through the first test terminal 210, thereby testing the load performance of the switch power supply 10 to be tested. The switch power supply 10 to be tested is placed in the box body 100 and does not directly contact the outside world, thereby improving the safety.

[0055] As shown in Figure 1As shown, the test device further comprises a discharge resistor 400 provided with a first pin 410 connected to the first test terminal 210 and a second pin 420 connected to the second test terminal 220, and a first switch 430 arranged on the first pin 410 or the second pin 420 for controlling the connection between the discharge resistor 400 and the switch power supply 10 under test.

[0056] When the switch power supply 10 under test is tested, the first switch 430 is opened, and the discharge resistor 400 is disconnected from the switch power supply 10 under test. When the test is completed, the switch power supply 10 under test needs to be quickly discharged, the first switch 430 is closed, the switch power supply under test is connected to the discharge resistor 400, and the discharge resistor 400 is used to share the voltage in the switch power supply 10 under test, thereby reducing the risk of high-voltage motor and improving the safety during the test.

[0057] In specific embodiments, as shown in Figure 2 The test device further comprises a positive voltage connection line 710 and a negative voltage connection line 720, one end of the positive voltage connection line 710 is connected to the first test terminal 210, and the other end of the positive voltage connection line 710 is provided with a positive voltage test clamp for connecting the positive electrode of the load instrument 20; one end of the negative voltage connection line 720 is connected to the second test terminal 220, and the other end of the negative voltage connection line 720 is provided with a negative voltage test clamp for connecting the negative electrode of the load instrument 20. The first electronic wire 510 connects the positive electrode of the switch power supply 10 under test and the first test terminal 210, and the second electronic wire 520 connects the negative electrode of the switch power supply 10 under test and the second test terminal 220.

[0058] During performance testing, the positive electrode of the switch power supply 10 under test is connected to the positive electrode of the load instrument 20 through the first test terminal 210 and the positive voltage test clamp, and the negative electrode of the load instrument 20 is connected to the negative electrode of the switch power supply 10 under test through the negative voltage test clamp and the second test terminal 220, thereby forming a current return flow and realizing the test process.

[0059] In specific embodiments, the test device further comprises a first short-circuit assembly and a second short-circuit assembly, the first short-circuit assembly comprises a first switch assembly and an output port 660, and when the first switch assembly is closed, the first test terminal 210 and the second test terminal 220 are in a short-circuit state. The second short-circuit assembly comprises a second switch assembly and an input port 880, and the second short-circuit assembly is connected to the power socket 300 and the switch power supply 10 under test. The second short-circuit assembly controls the short-circuit state of the second short-circuit assembly, and when the second switch assembly is closed, the second short-circuit assembly enters a short-circuit state.

[0060] The output port 660 and the input port 880 are respectively used to connect two ends of the external voltage resistance tester 30.

[0061] The first test terminal 210, the second test terminal 220 and the second shorting assembly are connected with the to-be-tested switching power supply 10. When the first test terminal 210 and the second test terminal 220 are in the shorting state, and the second shorting assembly is in the shorting state, the voltage withstand tester 30 performs the safety test on the to-be-tested switching power supply 10.

[0062] It should be noted that, at present, when the to-be-tested switching power supply 10 is tested, different test platforms need to be built for performance test and safety test, and two tests are respectively performed, which is relatively cumbersome and low in test efficiency. In the embodiment, the switching between the two test modes can be realized by only opening and closing the first switch assembly and the second switch assembly.

[0063] Specifically, when the first switch assembly and the second switch assembly are opened, the first test terminal 210 and the second test terminal 220 are not shorted, and the second shorting assembly is disconnected with each other, and the safety test is not performed. The to-be-tested switching power supply is connected with one electrode of the load tester 20 through the first test terminal 210, and is also connected with another electrode of the load tester 20 through the second test terminal 220, so that the current backflow is formed between the to-be-tested switching power supply and the load tester 20, and the performance test is performed. When the first switch assembly and the second switch assembly are closed, the first test terminal 210 and the second test terminal 220 are shorted, the second shorting assembly is shorted, and the two ends of the voltage withstand tester 30 are respectively connected with the output port 660 of the first shorting assembly and the input port 880 of the second shorting assembly, so as to perform the safety test on the to-be-tested switching power supply 10 by using the voltage withstand tester 30.

[0064] In specific embodiments, as shown in FIG. 2, the first shorting assembly includes a third electronic wire 610, and the first switch assembly includes a second switch 640. The two ends of the third electronic wire 610 are respectively connected with the first test terminal 210 and the second test terminal 220. The second switch 640 is arranged on the third electronic wire 610 and is used for controlling the on-off of the third electronic wire 610. When the second switch 640 is closed, the third electronic wire 610 is connected. Figure 1

[0065] The first shorting assembly further includes a third test terminal 620 and a fourth electronic wire 630. The two ends of the fourth electronic wire 630 are respectively connected with the second test terminal 220 and the third test terminal 620. The output port 660 is arranged on the third test terminal 620 and faces the opening of the box body 100. The output port 660 on the third test terminal 620 is used for plugging one end of the voltage withstand tester 30.

[0066] ​The first switch assembly further comprises a third switch 650 disposed on the fourth electronic line 630 for controlling the on-off of the fourth electronic line 630. When the third switch 650 is closed, the voltage withstand tester 30 is plugged on the output port 660, and the third test terminal 620 is in communication with the first test terminal 210 and the second test terminal 220.

[0067] In a specific embodiment, as shown in Figure 1 The second short-circuit assembly comprises a fourth test terminal 810, a fifth test terminal 820 and a sixth test terminal 840, and a fifth electronic line 830 connecting the fourth test terminal 810 and the fifth test terminal 820, and a sixth electronic line 850 connecting the fifth test terminal 820 and the sixth test terminal 840. The fourth test terminal 810 is connected to the live wire of the power supply socket 300 and the live wire of the switch power supply 10 to be tested, the fifth test terminal 820 is connected to the zero line of the power supply socket 300 and the zero line of the switch power supply 10 to be tested, and the fourth test terminal 810 and the fifth test terminal 820 are connected to the power supply socket 300 and the switch power supply 10 to be tested. By using the fifth electronic line 830 and the sixth electronic line 850, the fourth test terminal 810, the fifth test terminal 820 and the sixth test terminal 840 are short-circuited.

[0068] In addition, the second switch assembly comprises a fourth switch 860 and a fifth switch 870. The fourth switch 860 is disposed on the fifth electronic line 830 for controlling the on-off of the fifth electronic line 830, and the fifth switch 870 is disposed on the sixth electronic line 850 for controlling the on-off of the fifth electronic line 830. When the safety test is not needed, the fourth switch 860 and the fifth switch 870 are opened, and the power supply is directly powered to the switch power supply 10 to be tested. When the safety test is needed, the fourth switch 860 and the fifth switch 870 are closed to short-circuit the fourth test terminal 810, the fifth test terminal 820 and the sixth test terminal 840.

[0069] In a specific embodiment, when the performance test of the switch power supply 10 to be tested is performed, the first switch 430, the second switch 640, the third switch 650, the fourth switch 860 and the fifth switch 870 are opened. The external load tester 20 is plugged into the first test terminal 210 and the second test terminal 220, and the power supply socket 300 is plugged into the 220V power supply. When the safety test of the switch power supply 10 to be tested is performed, the first switch 430 is opened, the second switch 640, the third switch 650, the fourth switch 860 and the fifth switch 870 are closed, one end of the external voltage withstand tester 30 is plugged into the output port 660 of the third test terminal 620, and the other end is plugged into the input port 880 of the sixth test terminal 840 to realize the safety test.

[0070] In a specific embodiment, as shown in Figure 3As shown, the box body 100 includes a bottom plate 110, a first side plate 120, a second side plate 130, a third side plate 140 and a fourth side plate 150, which jointly enclose an internal space, wherein the first side plate 120 and the third side plate 140 are oppositely arranged, and the second side plate 130 and the fourth side plate 150 are oppositely arranged, wherein the switch power supply 10 to be tested can be installed on the bottom plate 110, and the discharge resistor 400 is installed on the bottom plate 110; the ports of the first test terminal 210, the ports of the second test terminal 220 and the output port 660 are arranged on the first side plate 120, and face the outside of the box body 100, and are connected with the load instrument 20 or the withstand voltage tester 30 outside.

[0071] The input port 880 is arranged on the third side plate 140, and faces the outside of the box body 100.

[0072] Specifically, the ports of the fourth test terminal 810, the ports of the fifth test terminal 820 and the ports of the sixth test terminal 840 are arranged on the third side plate 140, and face the outside of the box body 100.

[0073] In addition, the opening of the power supply socket 300 is arranged on the second side plate 130, and faces the outside of the box body 100.

[0074] During the safety test, high voltage needs to be applied to the switch power supply 10 to be tested, and by arranging the first short-circuit assembly and the second short-circuit assembly on the opposite first side plate 120 and third side plate 140 respectively, the safety during high voltage process is ensured. The risk of electric shock caused by touching the switch power supply 10 to be tested during testing is avoided, and the harm to the personnel caused by the failure of the switch power supply 10 to be tested is also avoided.

[0075] In specific embodiments, the test device further includes a cover plate, which is oppositely arranged with the bottom plate 110, and the cover plate is connected to the box body 100 in an openable and closable manner. When the cover plate is closed, the box body 100 and the cover plate form a closed space.

[0076] In a specific embodiment, the cover plate is rotatably connected with any one of the first side plate 120, the second side plate 130, the third side plate 140 or the fourth side plate 150. Specifically, the cover plate can be connected with the box body 100 in an openable and closable manner through a hinge device.

[0077] In another specific embodiment, a slide is arranged on the first side plate 120 and the third side plate 140, or a slide is arranged on the second side plate 130 and the fourth side plate 150, and a slide rail is arranged on the opposite edges of the cover plate, and the cover plate is connected with the box body 100 in an openable and closable manner through the sliding connection of the slide and the slide rail.

[0078] In specific embodiments, the cover plate is arranged as a transparent acrylic plate, which facilitates the observation of the inside of the box body 100 by the test personnel, and avoids the harm to the personnel caused by touching the box body 100 during work.

[0079] In a specific embodiment, the testing device is further provided with a handle, which is arranged on the cover plate, facilitating the operator to install the switch power supply 10 to be tested or to move the testing device.

[0080] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the acts or steps recited in the claims can be performed in a different order and still achieve desirable results. Additionally, the processes depicted in the figures do not necessarily require the particular order shown or sequential order in order to achieve the desired results.

[0081] Those skilled in the art should understand: the discussion of any embodiment above is only exemplary, and is not intended to imply that the scope (including claims) of the present application is limited to these examples; under the idea of the present application, the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the embodiments of the present application as described above, which are not provided in details for the sake of brevity.

[0082] The embodiments of the present application are intended to cover all such alternatives, modifications, and variations of the present application falling within the broad scope of the appended claims. Accordingly, any and all such modifications, variations, or equivalents that fall within the spirit and scope of the embodiments of the present application are intended to be included within the scope of the present application.

Claims

1. A test device, characterized by A test device for testing a switch power supply to be tested, the test device comprising: a box body, at least a first test terminal and a second test terminal are arranged on the box body, the first test terminal and the second test terminal are used for connecting an external load instrument; the switch power supply to be tested is installed in the interior of the box body; a power socket, the power socket is electrically connected with the switch power supply to be tested; a discharge resistor, the discharge resistor is provided with a first pin line and a second pin line, the first pin line is connected to the first test terminal, and the second pin line is connected to the second test terminal; a first switch is arranged on the first pin line or the second pin line; a first electronic line is used for connecting the first test terminal and the switch power supply to be tested, and a second electronic line is used for connecting the second test terminal and the switch power supply to be tested.

2. The test device of claim 1, wherein, Further comprising: a first short circuit assembly, the first short circuit assembly comprises a first switch assembly and an output port, when the first switch assembly is in a closed state, the first test terminal is short-circuited with the second test terminal; a second short circuit assembly, the second short circuit assembly comprises a second switch assembly and an input port, the second short circuit assembly is connected with the power socket and the switch power supply to be tested; the output port and the input port are respectively used for connecting two ends of an external voltage resistance tester.

3. The test device of claim 2, wherein, The first short circuit assembly comprises: a third electronic line, two ends of the third electronic line are respectively connected to the first test terminal and the second test terminal; a third test terminal and a fourth electronic line, two ends of the fourth electronic line are respectively connected to the second test terminal and the third test terminal, and the output port is arranged at an opening of the third test terminal towards the outside of the box body; the first switch assembly comprises a second switch and a third switch, the second switch is used for controlling the on-off of the third electronic line, and the third switch is used for controlling the on-off of the fourth electronic line.

4. The test device of claim 3, wherein, Further comprising: a positive voltage connection line, one end of the positive voltage connection line is connected to the first test terminal, and the other end of the positive voltage connection line is provided with a positive voltage test clamp, the positive voltage test clamp is used for connecting a positive electrode of the load instrument; a negative voltage connection line, one end of the negative voltage connection line is connected to the second test terminal, and the other end of the negative voltage connection line is provided with a negative voltage test clamp, the negative voltage test clamp is used for connecting a negative electrode of the load instrument; the first electronic line is connected to a positive electrode of the switch power supply to be tested, and the second electronic line is connected to a negative electrode of the switch power supply to be tested.

5. The test device of claim 2, wherein, The second short circuit assembly comprises: a fourth test terminal, the fourth test terminal connects a live wire of the power socket and a live wire of the switch power supply to be tested; a fifth test terminal, the fifth test terminal connects a zero wire of the power socket and a zero wire of the switch power supply to be tested; a fifth electronic line, the fifth electronic line connects the fourth test terminal and the fifth test terminal; a sixth test terminal and a sixth electronic line, the sixth electronic line connects the fifth test terminal and the sixth test terminal; The second switch assembly comprises a fourth switch and a fifth switch, the fourth switch being configured to control the on-off of the fifth electronic line, and the fifth switch being configured to control the on-off of the sixth electronic line.

6. The test device of claim 2, wherein, The box body comprises: a bottom plate on which the switch power supply to be tested is installed, and on which the discharge resistor is installed; a first side plate, a second side plate, a third side plate and a fourth side plate, the first side plate being opposite to the third side plate, and the second side plate being opposite to the fourth side plate; a port of the first test terminal, a port of the second test terminal and the output port being arranged on the first side plate and facing the outside of the box body; the input port being arranged on the third side plate and facing the outside of the box body; an opening of the power-on socket being arranged on the second side plate and facing the outside of the box body.

7. The test device of claim 6, wherein, Further comprising: a cover plate opposite to the bottom plate, and the cover plate being hingedly connected to the box body.

8. The test device of claim 7, wherein, The cover plate is arranged as a transparent plate.

9. The test device of claim 7, wherein, One side of the cover plate is hingedly connected to any one of the first side plate, the second side plate, the third side plate and the fourth side plate.

10. The test device of claim 7, wherein, Further comprising: a handle installed on the cover plate.

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