Ammeter testing device

Abstract

The invention discloses an electricity meter testing device which comprises a detection box, a sunlight simulation system, a wind and dust simulation system, an acid-base environment simulation system, a low-temperature simulation system and a humidity simulation system. Wherein the sunshine simulation system is used for simulating the sunshine and high-temperature environment under sunlight; wherein the wind and dust simulation system is used for simulating a wind blowing environment and a dust environment, the low-temperature simulation system is used for simulating a winter low-temperature environment, the humidity simulation system is used for simulating a high-humidity working environment, and environment states of most regions and even regions with relatively limited climate are covered through the simulation of the environments. By means of the device in the scheme, simulation of different working environments of the electric meter can be achieved, wherein the working environments include electric meter limit working scenes where exposure, high temperature, acidity and alkalinity, low temperature, wind blowing, dust raising and high humidity are distributed. The blank that a multi-environment organic integration detection space framework is lacked in the market is filled, and reference can be effectively provided for electricity meter production.

Description

Technical Field

[0001] The present invention belongs to the field of electric power technology and relates to an electric meter testing device. Background Art

[0002] An electric meter, also known as an electricity meter, is an important tool for electricity measurement. According to the existing standards, detailed requirements have been made for electric meters. In addition to setting standards for the mechanical properties and electrical properties of the electric meter itself, it is also required that the electric meter undergo climate tests, and it is clearly required that "after each climate test, the instrument should not be damaged and the information should not change, and it should work accurately". However, there is currently no small-scale testing device suitable for electric meters for climate simulation, and there is no good plan for detecting each link in the current climate simulation device. Summary of the Invention

[0003] The present invention provides an electric meter testing device to solve the above technical problems.

[0004] An electric meter testing device includes a detection box, a sunlight simulation system, a dust and wind simulation system, an acid-base environment simulation system, a low-temperature simulation system, and a humidity simulation system; wherein the sunlight simulation system is used to simulate the sunlight exposure and high-temperature environment; the dust and wind simulation system is used to simulate the wind blowing environment and dust environment, the low-temperature simulation system is used to simulate the low-temperature environment in winter, and the humidity simulation system is used to simulate the high-humidity working environment. Through the simulation of the above environments, the environmental states of the vast majority of regions, even relatively extreme climate regions, are covered;

[0005] A support plate for fixedly connecting the electric meter to be tested is arranged inside the detection box, and a wire trough is arranged below the support plate. The wire trough is used as the wire threading position for the electric meter connection wires;

[0006] The sunlight simulation system is arranged on one side of the detection box. The sunlight simulation system includes a lamp that irradiates the electric meter to be tested, and the lamp is a xenon lamp;

[0007] The dust and wind simulation system includes dust boxes arranged on both sides of the detection box. A filter screen is arranged inside the dust boxes; the opposite sides of the two dust boxes are connected to the inside of the detection box through pipelines, and the opposite sides are connected to the main air box through pipelines; one air outlet is respectively opened on both sides of the main air box, and each air outlet is connected to one of the dust boxes;

[0008] The acid-base environment simulation system includes a detection box and reactants. Two placement grooves are placed inside the detection box, and an acidic compound and an alkaline compound are respectively placed in the two placement grooves to simulate an acid-base environment;

[0009] The low-temperature simulation system includes a condenser, and the cold air outlet of the condenser is communicated with the main air box through a pipeline; by connecting the condenser with the main air box, the cold air is sent into the detection box by means of the fan in the main air box, so as to simulate a low-temperature working environment.

[0010] The humidity simulation system includes a spray pipe arranged inside the detection box, and the spray pipe is internally communicated with the inside of a water tank arranged outside the detection box through a pipeline and a water pump, and atomizing nozzles are arranged on the spray pipe.

[0011] Further, an opening is arranged on one side of the detection box, and vertical outer sliding grooves are symmetrically arranged on both sides of the opening; the sunlight simulation system includes an outer baffle, the outer baffle is slidably connected with the outer sliding groove, and the lamps are arranged on the outer baffle.

[0012] Bolt holes are formed in the groove wall of the outer sliding groove and the edge of the outer baffle, and the outer baffle is fixedly connected with the opening of the detection box through bolts.

[0013] Further, the filter screen includes a frame and a bag body, an opening is arranged in the middle of the frame, and the bag mouth of the bag body is fixed at the opening of the frame; the axis of the opening is parallel to the axis of the air inlet and outlet direction of the dust box, and the bag body is used to block dust and block the dust in the bag body.

[0014] Further, a main fan is arranged in the main air box, and one air outlet is arranged on each of the two sides of the main air box along the axial direction of the main fan. The main fan is an axial flow fan, and the air intake direction is switched by switching the fan rotation direction.

[0015] Further, the condenser is a refrigeration compressor, one side of the condenser is connected to an evaporation box, and the other side is connected to a condensation box;

[0016] An evaporator connected to the condenser is arranged in the evaporation box, a condenser connected to the condenser is arranged in the condensation box, and the evaporation box is coated with heat insulation material;

[0017] The evaporation box is communicated with the main air box through a cold air solenoid valve, wherein one side of the lower part of the condensation box is communicated with the condenser, and the other side is provided with an exhaust port; a flared opening is arranged on the upper part of the condensation box facing the condenser, the large end of the flared opening is communicated with the inside of the condensation box, and the small end is sequentially communicated with the main air box through a secondary air box and a hot air solenoid valve;

[0018] A secondary fan is arranged in the box body of the secondary air box, one air outlet is arranged on each of the two sides of the secondary air box along the axial direction of the secondary fan, the secondary fan is also an axial flow fan, and the air intake direction is switched by switching the fan rotation direction; an air inlet pipe is arranged on the box body of the secondary air box, and an air inlet solenoid valve is arranged on the pipeline of the air inlet pipe.

[0019] Further, one end of the spray pipe is provided with a water inlet, and the other end is provided with an air inlet. The water inlet is communicated with the water outlet of the water pump through a water inlet solenoid valve, and the air inlet is communicated with the air outlet of the air pump through an air inlet solenoid valve.

[0020] Further, a vertical slide rail is provided on the side of the outer baffle facing the inside of the detection box. An inner baffle is slidably connected in the slide rail. After the solar environment detection is completed, the inner baffle can block the lamp.

[0021] The humidity simulation system further includes a water baffle. The water baffle is erected between the electricity meter to be tested and the spray pipe through a connecting rod group. The area of the water baffle is larger than the projection area of the electricity meter to be tested on the horizontal plane.

[0022] The water baffle is a solar panel, and a storage battery is correspondingly arranged with the water baffle.

[0023] Further, the connecting rod group includes long and short connecting rod structures respectively arranged on one side of the water baffle. One end of the long connecting rod is hinged to the water baffle, and the other end is hinged to a fixed block. The fixed block is fixedly arranged on the inner wall of the detection box. One end of the short connecting rod is hinged to the water baffle, and the other end is hinged to a sliding block. A vertical inner chute is arranged on the inner wall of the detection box, and the sliding block is slidably connected with the inner chute; the fixed block is located below the sliding block, and the long connecting rod is hinged to the part of the water baffle close to the lamp.

[0024] The beneficial effects brought by the technical solution provided by the embodiment of the present invention are as follows: Through the device of this solution, the simulation of different working environments of the electricity meter can be realized, including the extreme working scenarios of the electricity meter existing in exposure to the sun, high temperature, acidity and alkalinity, low temperature, wind blowing, dust raising, and high humidity distribution. It makes up for the blank in the market for the lack of a detection space framework for the organic integration of multiple environments, and can effectively provide a reference for the production of electricity meters. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 FIG. is a schematic diagram of the overall structure of an electricity meter testing device of the invention;

[0026] Figure 2 FIG. is a schematic diagram of the structure of the sunshine simulation system of an electricity meter testing device of the invention;

[0027] Figure 3 FIG. is a schematic diagram of the structure of the dust and wind simulation system of an electricity meter testing device of the invention;

[0028] Figure 4 FIG. is a schematic diagram of the structure of the acid-base environment simulation system of an electricity meter testing device of the invention;

[0029] Figure 5 FIG. is a schematic diagram of the structure of the low-temperature simulation system of an electricity meter testing device of the invention;

[0030] Figure 6 Schematic structural diagram of a humidity simulation system for an electric meter testing device

[0031] In the figure: 1. Detection box; 2. Sunlight simulation system; 3. Wind and dust simulation system; 4. Acid-base environment simulation system; 5. Low-temperature simulation system; 6. Humidity simulation system; 7. Xenon lamp; 8. Dust box; 9. Placement groove; 10. Main air box; 11. Condensing machine; 12. Spray pipe; 13. Atomizing nozzle. Specific implementation mode

[0032] The following elaborates in detail on the specific implementation mode of an electric meter testing device in combination with the attached drawings.

[0033] As Figure 1 shown, an electric meter testing device includes a detection box 1, a sunlight simulation system 2, a wind and dust simulation system 3, an acid-base environment simulation system 4, a low-temperature simulation system 5, and a humidity simulation system 6; among them, the sunlight simulation system 2 is used to simulate the sunlight exposure and high-temperature environment; among them, the wind and dust simulation system 3 is used to simulate the wind blowing environment and dust environment, the low-temperature simulation system 5 is used to simulate the low-temperature environment in winter, and the humidity simulation system 6 is used to simulate the high-humidity working environment. Through the simulation of the above environments, the environmental states of the vast majority of regions, even relatively extreme climate regions, are covered;

[0034] A support plate for fixedly connecting the electric meter to be tested is arranged inside the detection box 1, and a wire passing groove is arranged below the support plate, and the wire passing groove is used as the wire passing position for the electric meter connection;

[0035] As Figure 2 shown, the sunlight simulation system 2 is arranged on both sides of the detection box 1, and the sunlight simulation system 2 includes a lamp that irradiates the electric meter to be tested, and the lamp is a xenon lamp 7;

[0036] As Figure 3 shown, the wind and dust simulation system 3 includes a dust box 8 arranged on one side of the detection box 1, and a filter screen is arranged inside the dust box 8; the opposite sides of the two dust boxes 8 are connected to the inside of the detection box 1 through pipelines, and the opposite sides are connected to the main air box 10 through pipelines; one air outlet is opened on each side of the main air box 10, and each air outlet is connected to one of the dust boxes 8;

[0037] As Figure 4 shown, the acid-base environment simulation system 4 includes a detection box 1 and reactants, and two placement grooves 9 are placed inside the detection box 1, and acidic compounds and alkaline compounds are respectively placed in the two placement grooves 9 for simulating the acid-base environment;

[0038] As Figure 5As shown, the low-temperature simulation system 5 includes a condenser 11, and the cold air outlet of the condenser 11 is communicated with the main air box 10 through a pipeline; by connecting the condenser 11 with the main air box 10, the cold air is sent into the detection box 1 by means of the fan in the main air box 10, so as to simulate a low-temperature working environment.

[0039] As Figure 6 shown, the humidity simulation system 6 includes a spray pipe 12 arranged inside the detection box 1. The spray pipe 12 is internally communicated with the inside of a water tank arranged outside the detection box 1 through a pipeline and a water pump, and atomizing nozzles 13 are arranged on the spray pipe 12.

[0040] According to the above, an opening is arranged on one side of the detection box 1, and vertical outer sliding grooves are symmetrically arranged on both sides of the opening; the sunlight simulation system 2 includes an outer baffle, the outer baffle is slidably connected with the outer sliding grooves, and the lamps are arranged on the outer baffle.

[0041] Bolt holes are formed in the groove walls of the outer sliding grooves and the edges of the outer baffle, and the outer baffle is fixedly connected to the opening of the detection box 1 through bolts.

[0042] According to the above, the filter screen includes a frame and a bag body. An opening is arranged in the middle of the frame, and the bag mouth of the bag body is fixed at the opening of the frame; the axis of the opening is parallel to the axis of the air inlet and outlet direction of the dust box 8, and the bag body is used to block dust and block the dust inside the bag body.

[0043] According to the above, a main fan is arranged in the main air box 10, and one air outlet is arranged on each of the two sides of the main air box 10 along the axial direction of the main fan. An axial flow fan is selected as the main fan, and the air intake direction is switched by switching the fan rotation direction.

[0044] According to the above, the condenser 11 is a refrigeration compressor. One side of the condenser 11 is connected to an evaporation box, and the other side is connected to a condensation box;

[0045] An evaporator connected to the condenser 11 is arranged in the evaporation box, a condenser connected to the condenser 11 is arranged in the condensation box, and the evaporation box is coated with heat insulation materials;

[0046] The evaporation box is communicated with the main air box 10 through a cold air solenoid valve. One side of the lower part of the condensation box is communicated with the condenser 11, and the other side is provided with an air outlet; a flared opening is arranged on the upper part of one side of the condensation box facing the condenser 11. The large end of the flared opening is communicated with the inside of the condensation box, and the small end is sequentially communicated with the main air box 10 through a secondary air box and a hot air solenoid valve;

[0047] A sub-fan is arranged inside the box body of the sub-air box. An air outlet is respectively opened on both axial sides of the sub-fan in the sub-air box. The sub-fan also selects an axial flow fan, and the air intake direction is switched by switching the fan rotation direction; an air inlet pipe is arranged on the box body of the sub-air box, and an air inlet solenoid valve is arranged on the pipeline of the air inlet pipe.

[0048] According to the above, one end of the spray pipe 12 is provided with a water inlet, and the other end is provided with an air inlet. The water inlet is communicated with the water outlet of the water pump through a water inlet solenoid valve, and the air inlet is communicated with the air outlet of the air pump through an air inlet solenoid valve.

[0049] According to the above, a vertical slide rail is arranged on the side of the outer baffle facing the inside of the detection box 1. An inner baffle is slidably connected in the slide rail. After the sunlight environment detection is completed, the lamp can be blocked by the inner baffle;

[0050] The humidity simulation system 6 further includes a water baffle. The water baffle is erected between the electricity meter to be measured and the spray pipe 12 through a connecting rod group. The area of the water baffle is larger than the projection area of the electricity meter to be measured on the horizontal plane.

[0051] The water baffle is a solar panel, and a storage battery is correspondingly arranged with the water baffle.

[0052] According to the above, the connecting rod group includes a long and short connecting rod structure respectively arranged on one side of the water baffle. One end of the long connecting rod is hinged to the water baffle, and the other end is hinged to a fixed block. The fixed block is fixedly arranged on the inner wall of the detection box 1. One end of the short connecting rod is hinged to the water baffle, and the other end is hinged to a sliding block. A vertical inner chute is arranged on the inner wall of the detection box 1. The sliding block is slidably connected with the inner chute; the fixed block is located below the sliding block, and the long connecting rod is hinged to the part of the water baffle close to the lamp.

[0053] The beneficial effects brought by the technical solution provided by the embodiment of the present invention are: through the device of this solution, the simulation of different working environments of the electricity meter can be realized, including the extreme working scenarios of the electricity meter existing in the sun exposure, high temperature, acidity and alkalinity, low temperature, wind blowing, dust raising, and high humidity distribution. It makes up for the blank in the market lacking a detection space framework for the organic integration of multiple environments, and can effectively provide a reference for the production of electricity meters.

[0054] Finally, it should be noted that the combination of the above embodiments only illustrates the technical solution of the present invention rather than limiting it. Those of ordinary skill in the art should understand that those skilled in the art can modify or equivalently replace the specific embodiments of the present invention, but these modifications or changes are all within the scope of the protection of the claims pending for approval.

Claims

1. An electric meter testing device, characterized in that, it includes a detection box, a sunlight simulation system, a dust and wind simulation system, an acid-base environment simulation system, a low-temperature simulation system and a humidity simulation system; wherein the sunlight simulation system is used to simulate the sunlight exposure and high-temperature environment; the dust and wind simulation system is used to simulate the wind blowing environment and the dust environment, the low-temperature simulation system is used to simulate the low-temperature environment in winter, and the humidity simulation system is used to simulate the high-humidity working environment. Through the simulation of the above environments, it covers the environmental states of the vast majority of regions, even relatively extreme climate regions; a support plate for fixedly connecting the electric meter to be tested is arranged in the detection box, and a wire trough is arranged below the support plate, and the wire trough is used as a wire threading position for the electric meter connection; the sunlight simulation system is arranged on one side of the detection box, and the sunlight simulation system includes a lamp that irradiates the electric meter to be tested, and the lamp is a xenon lamp; the dust and wind simulation system includes dust boxes arranged on both sides of the detection box, and a filter screen is arranged in the dust boxes; the opposite sides of the two dust boxes are communicated with the inside of the detection box through pipelines, and the opposite sides are communicated with the main air box through pipelines; one air outlet is respectively opened on both sides of the main air box, and each air outlet is communicated with one of the dust boxes; the acid-base environment simulation system includes a detection box and reactants, and two placement grooves are placed in the detection box, and an acidic compound and a basic compound are respectively placed in the two placement grooves to simulate the acid-base environment; the low-temperature simulation system includes a condenser, and the cold air outlet of the condenser is communicated with the main air box through a pipeline; by connecting the condenser with the main air box, the cold air is sent into the detection box by means of the fan in the main air box, so as to simulate the low-temperature working environment. the humidity simulation system includes a spray pipe arranged inside the detection box, and the spray pipe is communicated with the inside of a water tank arranged outside the detection box through a pipeline and a water pump, and atomizing nozzles are arranged on the spray pipe.

2. The electric meter testing device according to claim 1, characterized in that, an opening is arranged on one side of the detection box, and vertical outer sliding grooves are symmetrically arranged on both sides of the opening; the sunlight simulation system includes an outer baffle, the outer baffle is slidably connected with the outer sliding groove, the lamp is arranged on the outer baffle, bolt holes are respectively arranged on the groove wall of the outer sliding groove and the edge of the outer baffle, and the outer baffle is fixedly connected with the opening of the detection box through bolts.

3. The electric meter testing device according to claim 1, characterized in that, the filter screen includes a frame and a bag body, an opening is arranged in the middle of the frame, and the bag mouth of the bag body is fixed at the opening of the frame; the axis of the opening is parallel to the axis of the air inlet and outlet direction of the dust box, and the bag body is used to block dust and block the dust in the bag body.

4. The electric meter testing device according to claim 1, characterized in that, a main fan is arranged in the main air box, and one of the air outlets is respectively opened on both sides of the main air box along the axial direction of the main fan. The main fan is an axial flow fan, and the air intake direction is switched by switching the fan rotation direction.

5. The electric meter testing device according to claim 1, characterized in that, the condenser is a refrigeration compressor, one side of the condenser is connected to an evaporation box, and the other side is connected to a condensation box; An evaporator connected to a condenser is provided inside the evaporator box, and a condenser connected to the condenser is provided in the condenser box. The evaporator box is coated with heat-insulating material; The evaporator box is communicated with the main air box through a cold air solenoid valve. One side of the lower part of the condenser box is communicated with the condenser, and the other side is provided with an air outlet; A flared opening is provided at the upper part of the condenser box facing the condenser. One end of the large opening of the flared opening is communicated with the inside of the condenser box, and the small end is sequentially communicated with the main air box through the auxiliary air box and the hot air solenoid valve; An auxiliary fan is provided inside the box body of the auxiliary air box. An air outlet is provided on each side of the auxiliary air box located on both axial sides of the auxiliary fan. The auxiliary fan also selects an axial flow fan, and the air guiding direction is switched by switching the fan rotation direction; An air inlet pipe is provided on the box body of the auxiliary air box, and an air inlet solenoid valve is provided on the pipeline of the air inlet pipe.

6. A kind of electric meter testing device according to claim 1, characterized in that, One end of the spray pipe is provided with a water inlet, and the other end is provided with an air inlet. The water inlet is communicated with the water outlet of the water pump through a water inlet solenoid valve, and the air inlet is communicated with the air outlet of the air pump through an air inlet solenoid valve.

7. A kind of electric meter testing device according to claim 2, characterized in that, A vertical slide rail is provided on the side of the outer baffle facing the inside of the detection box. An inner baffle is slidably connected inside the slide rail. After the sunlight environment detection is completed, the inner baffle can block the lamp; The humidity simulation system further includes a water baffle, which is erected between the electric meter to be tested and the spray pipe through a connecting rod group. The area of the water baffle is larger than the projection area of the electric meter to be tested on the horizontal plane; The water baffle is a solar panel, and a storage battery is provided corresponding to the water baffle.

8. A kind of electric meter testing device according to claim 7, characterized in that, The connecting rod group includes long and short connecting rod structures respectively arranged on one side of the water baffle. One end of the long connecting rod is hinged to the water baffle, and the other end is hinged to a fixed block. The fixed block is fixedly arranged on the inner wall of the detection box. One end of the short connecting rod is hinged to the water baffle, and the other end is hinged to a sliding block. A vertical inner chute is provided on the inner wall of the detection box, and the sliding block is slidably connected with the inner chute; The fixed block is located below the sliding block, and the long connecting rod is hinged to the part of the water baffle close to the lamp.

Images