Shielding box for testing electric energy meter

Abstract

The utility model relates to a shielding box for testing an electric energy meter, which comprises a box body and a box cover hinged on the box body, an electric meter seat used for fixing an electric meter and supplying power to the electric meter is arranged in the box body, a power supply connector and a data connector are embedded on the box wall of the box body, the power supply connector and the data connector both penetrate through the box body, and the box cover is arranged on the box body. The inner end and the outer end of the data connector are respectively provided with an inner interface and an outer interface which are communicated with each other, the electric meter seat is connected with the inner interface of the power connector through an inner power line, the inner interface of the data connector is connected with a wireless transceiver, the outer interface of the power connector is connected with a power source, and the outer interface of the data connector is connected with a computer through a data line. According to the utility model, the shielding box specially used for testing the electric energy meter is arranged, detection is realized in the shielding box, and mutual signal interference is avoided.

Description

Technical Field

[0001] The utility model relates to an auxiliary tool for testing an electric energy meter. Background Art

[0002] Some electricity meters are equipped with small wireless devices and need to be tested before leaving the factory. During batch testing, the electricity meter will generate signal interference with adjacent electricity meters to be tested, affecting the detection effect. Summary of the Invention

[0003] In order to overcome the above-mentioned deficiencies in the prior art, the utility model provides a shielding box for testing an electric energy meter, which can prevent interference during detection.

[0004] The utility model is realized by the following technical solutions:

[0005] A shielding box for testing an electric energy meter comprises a box body and a box cover hinged on the box body, and is characterized in that: a meter holder for fixing the electric meter and supplying power to the electric meter is provided in the box body, a power connector and a data connector are embedded on the box wall of the box body, the power connector and the data connector are both arranged through the box body, and the inner and outer ends thereof are respectively provided with an internal interface and an external interface that are interconnected, the meter holder is connected to the internal interface of the power connector through an internal power cord, the internal interface of the data connector is connected to a wireless transceiver, the external interface of the power connector is connected to a power source, and the external interface of the data connector is connected to a computer through a data cable.

[0006] Preferably, the electric meter stand includes a base plate fixed to the bottom of the box body, and a first limit rod and a second limit rod are provided on the base plate for limiting the two sides of the electric meter. A pressure strip is provided across one end of the first limit rod and the second limit rod, and one end of the pressure strip is set as a connecting end hinged on the base plate, and the other end is set as an open end, and the open end of the pressure strip is fixed or released by a limiting mechanism.

[0007] Preferably, the limiting mechanism includes a limiting seat and a sliding rod passing through the limiting seat. The sliding rod can slide relative to the limiting seat and the sliding direction is the same as the direction of the pressure strip. The sliding rod is elastically connected to the limiting seat, and the upper surface of the sliding rod close to the pressure strip is set as an inclined surface.

[0008] Preferably, conductive pins corresponding to the connection terminals of the electric energy meter are provided on the lower pressing side of the pressure strip, and the conductive pins are electrically connected to the internal power line.

[0009] Preferably, the first limiting rod and the second limiting rod are respectively provided with strip holes, and the first limiting rod and the second limiting rod are fixed to the base plate through the strip holes and fixing screws in the strip holes.

[0010] A dedicated shielded box is set up, and the meter under test is placed on the meter holder. The first and second limit bars on either side constrain the meter's position, and a pressure bar is used to press down. The conductive pins inside the pressure bar are inserted into the terminals that electrically connect to the meter. The conductive pins are connected to the external power supply via an internal power cord and power connector. A wireless transceiver is located at the data connector, and this wireless transceiver connects to an external computer via the data connector to transmit data. During testing, the wireless transceiver converts the signal transmitted by the computer into a wireless signal. The meter under test receives the signal and provides feedback. The wireless transceiver then uploads the received feedback signal to the computer to determine whether the meter's wireless function is qualified. Testing is completed within the shielded box, free from interference from external signals.

[0011] The beneficial effect of the present invention is that: the present invention provides a shielding box specially used for testing the electric energy meter, and detection is carried out in the shielding box to avoid signal interference between each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of a utility model.

[0013] Figure 2 It is a schematic diagram of the internal structure of the utility model. DETAILED DESCRIPTION

[0014] The utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0015] like Figure 1 、 2 As shown, a shielding box for testing an electric energy meter includes a box body 1 and a box cover 2 hinged on the box body. A meter holder for fixing the electric meter and supplying power to the electric meter is provided in the box body. A power connector 4 and a data connector 3 are embedded on the box wall of the box body. The power connector and the data connector are both arranged through the box body, and the inner and outer ends thereof are respectively provided with an internal interface and an external interface that are interconnected. The meter holder is connected to the inner interface of the power connector 4 through an internal power cord, the inner interface of the data connector is connected to a wireless transceiver, the external interface of the power connector is connected to a power source, and the external interface of the data connector is connected to a computer through a data cable.

[0016] The meter stand includes a base plate 12 fixed to the bottom of the box body, and a first limiting rod 5 and a second limiting rod 11 are provided on the base plate to limit the two sides of the meter. A pressure strip 7 is provided across one end of the first limiting rod and the second limiting rod. One end of the pressure strip is set as a connecting end hinged to the base plate, and the other end is set as an open end. The open end is fixed or released by a limiting mechanism. The limiting mechanism includes a limiting seat 10 and a slide bar 9 passing through the limiting seat. The slide bar can slide relative to the limiting seat and the sliding direction is in the same direction as the length of the pressure strip. The slide bar is elastically connected to the limiting seat, and the upper surface of the slide bar near one end of the pressure strip is set as an inclined surface 8. Conductive pins corresponding to the connection terminals of the electric energy meter are provided on the lower pressure side of the pressure strip, and the conductive pins are electrically connected to the internal power line.

[0017] The first and second limiting rods are each provided with a strip hole 6, which is fixed to the base plate through the strip holes and the fixing screws in the strip holes. The strip holes 6 can adjust the position of the first and second limiting rods 5 and 11 to match different electric energy meters.

[0018] The present application sets up a special shielding box, places the electric energy meter to be tested on the electric energy meter holder, limits the position of the two sides by the first limit rod 5 and the second limit rod 11 on both sides, and presses down by the pressure strip 7, and the conductive pin in the pressure strip is inserted into the terminal of the electric energy meter. The conductive pin is connected to the external power supply through the internal power cord and the power connector, and a wireless transceiver is set at the data connector. The wireless transceiver is connected to the external computer through the data connector and can transmit data. During the test, the wireless transceiver converts the signal transmitted by the computer into a wireless signal, and the electric energy meter to be tested receives the signal and provides feedback. The wireless transceiver uploads the received feedback signal to the computer to determine whether the wireless function of the electric energy meter is qualified. The test is completed in the shielding box without being interfered by external signals.

[0019] When the bead is pressed down, the open end of the bead is pressed down by the inclined surface 4 of the slide bar, and the slide bar is pushed outward. After passing the inclined surface, the slide bar is restored and the bead is limited below the slide bar. When releasing, just push the slide bar 9 outward.

[0020] The utility model provides a shielding box specially used for electric energy meter testing, and detection is realized in the shielding box to avoid mutual signal interference.

Claims

1. A shielding box for testing an electric energy meter, comprising a box body and a box cover hinged to the box body, characterized in that: A meter holder for fixing the electric meter and supplying power to the electric meter is provided in the box body. A power connector and a data connector are embedded on the box wall. The power connector and the data connector are both arranged through the box body, and the inner and outer ends thereof are respectively provided with an internal interface and an external interface that are interconnected. The meter holder is connected to the internal interface of the power connector through an internal power line, the internal interface of the data connector is connected to a wireless transceiver, the external interface of the power connector is connected to a power source, and the external interface of the data connector is connected to a computer through a data line.

2. The shielding box for testing an electric energy meter according to claim 1, characterized in that: The electric meter stand includes a base plate fixed to the bottom of the box body, and a first limit rod and a second limit rod are provided on the base plate to limit the two sides of the electric meter. A pressure strip is provided across one end of the first limit rod and the second limit rod. One end of the pressure strip is set as a connecting end hinged on the base plate, and the other end is set as an open end. The open end is fixed or released by a limiting mechanism.

3. The shielding box for testing an electric energy meter according to claim 2, characterized in that: The limiting mechanism includes a limiting seat and a sliding rod passing through the limiting seat. The sliding rod can slide relative to the limiting seat and the sliding direction is the same as the direction of the pressure strip. The sliding rod is elastically connected to the limiting seat, and the upper surface of the sliding rod close to the pressure strip is set as an inclined surface.

4. A shielding box for testing an electric energy meter according to claim 2 or 3, characterized in that: Conductive pins corresponding to the connection terminals of the electric energy meter are provided on the pressing side of the pressure strip, and the conductive pins are electrically connected to the internal power line.

5. The shielding box for testing an electric energy meter according to claim 4, characterized in that: The first limiting rod and the second limiting rod are respectively provided with strip holes, and the first limiting rod and the second limiting rod are fixed to the base plate through the strip holes and the fixing screws in the strip holes.

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