Compatibility and voltage resistance test equipment for electricity meter

Abstract

The utility model provides an ammeter compatibility withstand voltage test device, relates to the ammeter test field, and provides the following scheme: the ammeter compatibility withstand voltage test device comprises a rack and a plurality of compatibility test mechanisms, the rack comprises a plurality of crossbeams, the plurality of compatibility test mechanisms are symmetrically arranged on the corresponding crossbeams front and back, each compatibility test mechanism comprises a mounting plate, and the mounting plates are arranged on the rack. A first supporting frame and a second supporting frame are installed on the top of the installation plate in a sliding mode, and a plurality of single-phase testing sets and a plurality of three-phase testing sets are arranged on the first supporting frame. Single-phase voltage withstanding testing, three-phase voltage withstanding testing and terminal voltage withstanding testing are integrated on the compatible testing mechanism, the switching time between different testing devices is shortened, the testing position can be adjusted according to electricity meters or concentrators of different models and sizes through the linear moving function of the first supporting frame and the second supporting frame, and the testing efficiency is improved. Therefore, the probe can accurately contact the target point, and the test efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to an electric meter test technical field especially relates to a kind of electric meter compatibility withstand voltage test equipment. BACKGROUND

[0002] Electric meter withstand voltage test is a kind of electrical safety test, to verify whether the insulation performance between the shell and the internal live part of electric meter is strong enough to prevent dangerous electrical fault or electric shock risk under overvoltage condition, and this test is crucial to ensure the safety and reliability of electric meter.

[0003] Traditional electric meter test usually needs to use multiple independent test equipment to complete single-phase, three-phase and terminal withstand voltage test, which leads to large equipment space occupation, complex operation and low efficiency, and usually does not have the function of switching small current and large current mode on the same platform, needs additional time and resources to convert equipment or adjust test conditions, therefore we propose a kind of electric meter compatibility withstand voltage test equipment to solve this problem. SUMMARY

[0004] To solve the above problems, the utility model provides a kind of electric meter compatibility withstand voltage test equipment to more exactly solve the above-mentioned problems.

[0005] The utility model discloses the following technical scheme realizes:

[0006] The utility model discloses a kind of electric meter compatibility withstand voltage test equipment, including rack and multiple compatible test mechanisms, the rack includes several cross beams, multiple The compatible test mechanisms are placed on corresponding cross beam in front and back symmetry, the compatible test mechanism includes mounting plate, the top of the mounting plate is slidably installed with support frame one and support frame two, the support frame one is provided with several single-phase test groups and several three-phase test groups, the single-phase test group and three-phase test group are respectively used to carry out single-phase withstand voltage test and three-phase withstand voltage test to electric meter, terminal test group is provided on the support frame, and the terminal test group is used to carry out terminal withstand voltage test to concentrator.

[0007] Further, the top of the mounting plate is fixedly installed with double-sliding-block straight line sliding rail, the support frame one and support frame two are respectively fixedly connected with corresponding two sliding blocks, the top of the mounting plate is fixedly installed with mounting frame in middle position, the mounting frame is fixedly installed with cylinder one and cylinder two, the output of the cylinder one and cylinder two is respectively fixedly connected with corresponding support frame one and support frame two, the cylinder one is used to drive corresponding support frame one to linearly move, and the cylinder two is used to drive corresponding support frame two to linearly move.

[0008] Further, the support frame is double-layered, and two supporting plates are arranged in a top-bottom manner, a plurality of single-phase test groups are fixedly installed on the lower supporting plate, and a plurality of three-phase test groups are fixedly installed on the upper supporting plate.

[0009] Further, the support frame is double-layered, and two supporting plates are arranged in a top-bottom manner, a plurality of single-phase test groups are fixedly installed on the lower supporting plate, and a plurality of three-phase test groups are fixedly installed on the upper supporting plate.

[0010] Further, the support frame is double-layered, and two supporting plates are arranged in a top-bottom manner, a plurality of single-phase test groups are fixedly installed on the lower supporting plate, and a plurality of three-phase test groups are fixedly installed on the upper supporting plate.

[0011] Further, the support frame is double-layered, and two supporting plates are arranged in a top-bottom manner, a plurality of single-phase test groups are fixedly installed on the lower supporting plate, and a plurality of three-phase test groups are fixedly installed on the upper supporting plate.

[0012] Further, the support frame is double-layered, and two supporting plates are arranged in a top-bottom manner, a plurality of single-phase test groups are fixedly installed on the lower supporting plate, and a plurality of three-phase test groups are fixedly installed on the upper supporting plate.

[0013] Further, the support frame is double-layered, and two supporting plates are arranged in a top-bottom manner, a plurality of single-phase test groups are fixedly installed on the lower supporting plate, and a plurality of three-phase test groups are fixedly installed on the upper supporting plate.

[0014] Further, the support frame is double-layered, and two supporting plates are arranged in a top-bottom manner, a plurality of single-phase test groups are fixedly installed on the lower supporting plate, and a plurality of three-phase test groups are fixedly installed on the upper supporting plate.

[0015] Further, two electric control groups are arranged on the rack, the two electric control groups are arranged in front and back, the electric control group on the front side is used for supplying power to the compatible test mechanism on the front side, and the electric control group on the rear side is used for supplying power to the compatible test mechanism on the rear side.

[0016] The utility model discloses beneficial effect is:

[0017] 1. by the single -phase voltage resistance test, three -phase voltage resistance test and terminal voltage resistance test are integrated to the compatible test mechanism, reduced the switching time between different test equipment, through the linear movement function of support frame no. 1 and support frame no. 2, can adjust test position according to different models and the size of electric meter or concentrator, ensure that the probe can accurately contact target point, further improve the test efficiency.

[0018] 2. by the support frame no. 2 of compatible test mechanism is located on the support frame no. 1, and the both are nested arrangement, make the whole system more compact, save the use space, through the multiple compatible test mechanism of front side is used for the test under small current mode, and the multiple compatible test mechanism of rear side is used for the test under large current mode, this kind of layout not only optimizes the space utilization, also ensures the safe isolation of different types of test, avoids the cross interference. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic view of the utility model discloses a kind of electric meter compatibility voltage resistance test equipment;

[0020] Figure 2 It is a part of three-dimensional structure schematic view of the utility model discloses a kind of electric meter compatibility voltage resistance test equipment;

[0021] Figure 3 It is a three-dimensional structure schematic view of the first perspective of the compatible test mechanism of the utility model discloses a kind of electric meter compatibility voltage resistance test equipment;

[0022] Figure 4 It is a three-dimensional structure schematic view of the second perspective of the compatible test mechanism of the utility model discloses a kind of electric meter compatibility voltage resistance test equipment;

[0023] Figure 5 It is a three-dimensional structure schematic view of the third perspective of the compatible test mechanism of the utility model discloses a kind of electric meter compatibility voltage resistance test equipment;

[0024] Figure 6 It is a three-dimensional structure schematic view of the utility model discloses a kind of electric meter compatibility voltage resistance test equipment's insulation base;

[0025] Figure 7 It is a plane structure schematic view of the utility model discloses a kind of electric meter compatibility voltage resistance test equipment's insulation base.

[0026] Figure 8 The utility model provides a kind of electric meter compatibility withstand voltage test equipment's lifting mechanism's three-dimensional structure schematic view of insulating base.

[0027] Reference signs are as follows:

[0028] In the drawing: 1, rack;2, crossbeam;3, compatible test mechanism;4, mounting plate;5, support frame one;6, support frame two;7, single-phase test group;8, three-phase test group;9, terminal test group;10, double-sliding-block linear slide;11, cylinder one;12, cylinder two;13, supporting plate;14, insulating base;15, probe via;16, probe one;17, wiring copper medal;18, short-circuit copper medal;19, cylinder three;20, moving plate;21, insulating plate;22, probe two;23, positioning plate;24, lifting mechanism;25, aluminum frame;26, double-layer lifting mechanism;27, cross frame;28, positioning plate;29, tray;30, withstand voltage detection probe;31, positioning pin;32, electric control group. DETAILED DESCRIPTION

[0029] In order to more clearly and completely illustrate the technical scheme of the utility model, the utility model is further described below in combination with the drawings.

[0030] Please refer to Figures 1-8 The utility model provides a kind of electric meter compatibility withstand voltage test equipment, including rack 1 and multiple compatible test mechanisms 3, rack 1 includes several crossbeams 2, multiple compatible test mechanisms 3 are placed on corresponding crossbeam 2 in front-back symmetry, and compatible test mechanism 3 includes mounting plate 4, and the top of mounting plate 4 is slidably installed with support frame one 5 and support frame two 6, support frame one 5 is provided with several single-phase test groups 7 and several three-phase test groups 8, and single-phase test group 7 and three-phase test group 8 are used to carry out single-phase withstand voltage test and three-phase withstand voltage test to electric meter respectively, and support frame is provided with terminal test group 9, and terminal test group 9 is used to carry out terminal withstand voltage test to concentrator.

[0031] It should be noted that single-phase withstand voltage test and three-phase withstand voltage test are used to verify the insulation performance of electric meter, to ensure that it can safely operate under higher normal operating voltage, and its principle is to apply a test voltage higher than normal operating voltage, and monitor whether there is leakage current or insulation breakdown phenomenon exceeding the allowable limit;Single-phase withstand voltage test is used to test single-phase electric meter, and test voltage is lower, and three-phase withstand voltage test is for three-phase electric meter, and test voltage is higher;Single-phase test group 7 and three-phase test group 8 are connected with electric meter through probe structure.

[0032] It should be noted that the terminal withstand voltage test is used to verify the insulation performance of the concentrator between its shell and the internal live part, to ensure that it can safely operate under conditions exceeding the normal working voltage, so that the concentrator can protect users from the risk of electric shock when facing overvoltage events, and ensure the accuracy of data transmission. The terminal test group 9 is in close abutment with the outside of the concentrator through the probe structure.

[0033] In the embodiment, the top of the mounting plate 4 is fixedly installed with a double-sliding-block linear slide rail 10, the support frame one 5 and the support frame two 6 are fixedly connected with the corresponding two sliding blocks respectively, the top of the mounting plate 4 is fixedly installed with a mounting frame in the middle position, the mounting frame is fixedly installed with a cylinder one 11 and a cylinder two 12, the output ends of the cylinder one 11 and the cylinder two 12 are fixedly connected with the corresponding support frame one 5 and support frame two 6 respectively, the cylinder one 11 is used to drive the corresponding support frame one 5 to move linearly, and the cylinder two 12 is used to drive the corresponding support frame two 6 to move linearly.

[0034] In the embodiment, the support frame one 5 is double-layered and includes two supporting plates 13 arranged in an upper-lower manner, a plurality of single-phase test groups 7 are fixedly installed on the supporting plate 13 located below at equal intervals, and a plurality of three-phase test groups 8 are fixedly installed on the supporting plate 13 located above at equal intervals. The support frame two 6 is single-layered, a plurality of terminal test groups 9 are fixedly installed on the top of the corresponding support frame two 6 at equal intervals, the support frame one 5 and the corresponding support frame two 6 are nested, the support frame one 5 is located below the corresponding support frame two 6, so that the whole compatible test mechanism 3 is more compact, and the space occupied by the compatible test mechanism 3 in the rack 1 is reduced.

[0035] In the embodiment, the three-phase test group 8 and the terminal test group 9 each include an insulating base 14, a plurality of probe through holes 15 are formed in one side of the insulating base 14, a probe one 16 is fixedly installed in the probe through hole 15, a short-circuit copper plate 18 and a plurality of wiring copper plates 17 are fixedly installed on the rear side of the insulating base 14, the short-circuit copper plate 18 is fixedly sleeved outside the corresponding plurality of probe ones 16, and the wiring copper plate 17 is fixedly sleeved outside the corresponding probe one 16.

[0036] It should be noted that the insulating base 14 provides electrical isolation for the three-phase test group 8 and the terminal test group 9, preventing current leakage to the ground or other components through unintended paths, and provides stable support for the probes 16, the wiring brasses 17, and the shorting brasses 18, reducing errors caused by vibration or movement during testing; the probes 16 are used to directly contact different parts of the meter or concentrator to apply test voltage and monitor leakage current, and the probes 16 are made of flexible material, which can be flexibly adjusted in angle and position to better contact irregular shapes or hard-to-reach parts; the wiring brasses 17 serve as power distribution points, distributing current from the test instrument to each probe 16, and the shorting brasses 18 connect multiple probes 16 together to form a common potential point, simulating a short circuit state in the circuit, which is very important for some types of testing, such as evaluating the insulation performance between multiple connection points.

[0037] In this embodiment, the top of the support frame two 6 is fixedly installed with an auxiliary frame, the auxiliary frame is fixedly installed with a cylinder three 19, the output end of the cylinder three 19 is fixedly connected with a moving plate 20, one side of the moving plate 20 is fixedly installed with two insulating plates 21, a plurality of probes two 22 are fixedly installed on the insulating plates 21, a plurality of through holes are formed in one side of the moving plate 20, the probes two 22 penetrate through the corresponding through holes, some meters have complex shell design or internal circuit layout, making it difficult for the probes 16 on the terminal test group 9 to directly contact all key test points, the probes two 22 can help contact multiple test points at the same time, ensuring that each important electrical interface is fully tested, providing additional functionality when performing terminal withstand voltage tests or ensuring more accurate and reliable contact, the cylinder three 19 drives the moving plate 20 to move linearly, controlling whether the probes two 22 are connected to the concentrator.

[0038] In this embodiment, one side of the insulating base 14 of the terminal test group 9 is fixedly installed with a positioning plate 28, a plurality of guide holes are formed in one side of the positioning plate 28, the probes two 22 and the probes 16 on the terminal test group 9 penetrate through the corresponding guide holes, guiding the movement of the probes 16 and the probes two 22, and also serving as a protection function.

[0039] In the embodiment, the jacking mechanism is arranged in the rack 1, and the jacking mechanism comprises two aluminum frames 25 which are arranged symmetrically left and right, and the front and rear sides of the aluminum frame 25 are fixedly connected with corresponding cross beams 2. The aluminum frame 25 is provided with a double-layer jacking mechanism 26, and the output ends of the two double-layer jacking mechanisms 26 are fixedly installed with the same cross frame 27. The top of the cross frame 27 is fixedly installed with a plurality of positioning plates 28, and the top of the positioning plate 28 is fixedly installed with a tray 29. The tray 29 is used for placing an electric meter or a concentrator. The double-layer jacking mechanism 26 has two layers of jacking platforms, and each layer of platform can independently adjust the height, so as to position the tray 29 to one or two specified heights, thereby improving the accuracy of the electric meter or the concentrator being docked with the compatible test mechanism 3.

[0040] In the embodiment, the top of the positioning plate 28 is provided with a plurality of voltage resistance detection probes 30, and the top edge of the positioning plate 28 is provided with a plurality of positioning pins 31. The bottom of the tray 29 is provided with a plurality of connecting holes. The probe and the positioning pin 31 are penetrated through the corresponding connecting hole and movably abut against the bottom of the electric meter. The voltage resistance detection probe 30 is in contact with the rear shell of the electric meter and is used for measuring the insulation resistance between the shell of the electric meter and the internal live part. By applying a test voltage higher than the normal working voltage, it is checked whether the shell of the electric meter has insulation defects such as cracks, dirt or material aging.

[0041] In the embodiment, the rack 1 is provided with two electric control groups 32 which are arranged front and back. The electric control group 32 located at the front side is used for supplying power to the plurality of compatible test mechanisms 3 located at the front side, and the electric control group 32 located at the rear side is used for supplying power to the plurality of compatible test mechanisms 3 located at the rear side. The electric control group 32 is used for controlling and adjusting the current output size in the test process of the compatible test mechanism 3, so that the plurality of compatible test mechanisms 3 located at the front side perform small current test, and the plurality of compatible test mechanisms 3 located at the rear side perform large current test. The small current mode is suitable for low-power equipment or line, and checks whether the insulation is sufficient under the condition of lower current. The large current mode is for high-power equipment or line, and needs to bear larger current, so that the insulation strength is tested under the condition of higher current.

[0042] The utility model discloses a working principle is: when using, the ammeter or concentrator is placed in tray 29, and when the double -deck jacking mechanism 26 jacks up and fixes position one layer to tray 29, can drive support frame one 5 to one side movement through cylinder one 11, makes the probe structure on single -phase test group 7 and ammeter closely butt joint and realizes single -phase withstand voltage test, and when the double -deck jacking mechanism 26 jacks up and fixes position two layers to tray 29, can drive support frame one 5 to one side movement through cylinder one 11, makes the probe one 16 on three -phase test group 8 and ammeter closely butt joint and realizes three -phase withstand voltage test, still can drive support frame two 6 to one side movement through cylinder two 12, makes the probe one 16 on terminal test group 9 and concentrator closely butt joint and realizes terminal withstand voltage test, changes the orientation of ammeter or concentrator on the supporting plate 13 to realize small -current and large -current withstand voltage test.

[0043] Of course, the utility model can also have other various implementation manners, based on this implementation manner, other implementation manners obtained by the ordinary skill of the art without any creative labor all belong to the range of protection of the utility model.

Claims

1. An ammeter compatibility withstand voltage test apparatus characterized by comprising: The utility model provides a kind of compatible test mechanism, including rack and multiple, the rack includes several crossbeams, multiple the compatible test mechanism is placed on corresponding crossbeam in front and back symmetry, the compatible test mechanism includes mounting plate, the top of mounting plate is slidably installed with support frame one and support frame two, support frame one is provided with several single-phase test groups and several three-phase test groups, and the single-phase test group and three-phase test group are respectively used to carry out single-phase withstand voltage test and three-phase withstand voltage test to electric meter, and support frame is provided with terminal test group, and the terminal test group is used to carry out terminal withstand voltage test to concentrator.

2. The meter compatibility withstand voltage test apparatus according to claim 1, characterized by, The top of the mounting plate is fixedly installed with a double-sliding-block linear slide rail, the support frame one and the support frame two are fixedly connected with the corresponding two sliding blocks respectively, and the top of the mounting plate is fixedly installed with a mounting bracket at the middle position.

3. The meter compatibility withstand voltage test apparatus according to claim 1, wherein The support frame one is double-layered and includes two supporting plates arranged above and below, and a plurality of single-phase test groups are fixedly installed at equal intervals on the supporting plate below, and a plurality of three-phase test groups are fixedly installed at equal intervals on the supporting plate above.

4. The meter compatibility withstand voltage test apparatus according to claim 1, characterized by, The support frame two is single-layered, and a plurality of terminal test groups are fixedly installed at equal intervals on the top of the corresponding support frame two.

5. The meter compatibility withstand voltage test apparatus according to claim 1, wherein The three-phase test group and the terminal test group each include an insulating base, a plurality of probe through holes are formed in one side of the insulating base, a probe one is fixedly installed in the probe through hole, a short-circuit copper plate and a plurality of wiring copper plates are fixedly installed on the rear side of the insulating base, the short-circuit copper plate is fixedly sleeved outside the corresponding plurality of probe ones, and the wiring copper plate is fixedly sleeved outside the corresponding probe one.

6. The meter compatibility withstand voltage test apparatus according to claim 1, wherein The top of the support frame two is fixedly installed with an auxiliary frame, a cylinder three is fixedly installed on the auxiliary frame, a moving plate is fixedly connected to the output end of the cylinder three, two insulating plates are fixedly installed on one side of the moving plate, a plurality of probe twos are fixedly installed on the insulating plates, a plurality of through holes are formed in one side of the moving plate, and the probe two penetrates through the corresponding through hole.

7. The meter compatibility withstand voltage test apparatus according to claim 6, wherein One side of the insulating base of the terminal test group is fixedly installed with a positioning plate, a plurality of guide holes are formed in one side of the positioning plate, and the probe two and the probe one on the terminal test group penetrate through the corresponding guide hole.

8. The meter compatibility withstand voltage test apparatus according to claim 1, wherein The rack is provided with a jacking mechanism, the jacking mechanism includes two aluminum frames, the two aluminum frames are symmetrically arranged left and right, the front and rear sides of the aluminum frame are fixedly connected with the corresponding crossbeam respectively, the aluminum frame is provided with a double-layer jacking mechanism, the output end of the two double-layer jacking mechanisms is fixedly installed with the same horizontal frame, a plurality of positioning plates are fixedly installed on the top of the horizontal frame, a tray is fixedly installed on the top of the positioning plate, and the tray is used to place electric meter or concentrator.

9. The meter compatibility withstand voltage test apparatus according to claim 8, wherein The top of the positioning plate is provided with a plurality of pressure-resistant detection probes, the top edge of the positioning plate is provided with a plurality of positioning pins, the bottom of the tray is provided with a plurality of connecting holes, and the probes and the positioning pins are both penetrated through the corresponding connecting holes and movably abut against the bottom of the electric meter.

10. The meter compatibility withstand voltage test apparatus according to claim 1, wherein The rack is provided with two electric control groups, the two electric control groups are arranged front and back, the electric control group located at the front side is used for supplying power to the plurality of compatible test mechanisms located at the front side, and the electric control group located at the rear side is used for supplying power to the plurality of compatible test mechanisms located at the rear side.

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