CN217639326U - Elevator frequency converter testing device - Google Patents

Abstract

The utility model discloses an elevator frequency converter testing device, which comprises an elevator control panel and a box body; an elevator control panel is arranged outside the box body and connected with the tested elevator frequency converter; an elevator system power supply and a filter are arranged in the box body; the power supply of the elevator system is connected with the elevator control panel and is connected with the frequency converter of the tested elevator; the filter is connected with a power supply of the elevator system and is respectively connected with a power supply and a frequency converter of the tested elevator; the filter is used for supplying power of the power supply to the elevator system power supply and the tested elevator frequency converter; the elevator system power supply is used for providing power for the elevator control panel and the tested elevator frequency converter; the elevator control panel is used for carrying out data interaction with the tested elevator frequency converter. This elevator converter testing arrangement can simulate really being surveyed the actual motion operating mode of elevator converter in the elevator actual motion, realizes the test to being surveyed the elevator converter, improves the efficiency of elevator converter test.

Description

Elevator frequency converter testing device

Technical Field

The utility model relates to an elevator technical field especially relates to an elevator converter testing arrangement.

Background

The early elevator system adopts three-phase power (including R/S/T/PE) for power supply, an elevator frequency converter adopts an AC380V design, and a frequency converter test loop is simple and easy to arrange. However, with the development of elevator technology, the system architecture of the elevator frequency converter changes rapidly, and the elevator frequency converter cannot be tested in the original mode.

In the conventional technology, usually, a test platform is temporarily built manually to test the elevator frequency converter, but the efficiency of testing the elevator frequency converter by the technology is low.

SUMMERY OF THE UTILITY MODEL

Based on this, carry out the lower problem of efficiency of elevator converter test to traditional technique, provided an elevator converter testing arrangement, this elevator converter testing arrangement can improve the efficiency of elevator converter test.

An elevator frequency converter testing device, comprising: an elevator control panel and a box body; the elevator control panel is arranged outside the box body and is connected with the frequency converter of the tested elevator; an elevator system power supply and a filter are arranged in the box body; the elevator system power supply is connected with the elevator control panel and is connected with the tested elevator frequency converter; the filter is connected with a power supply of the elevator system and is respectively connected with a power supply and the frequency converter of the detected elevator;

the filter is used for providing power of the power supply source to the elevator system power source and the tested elevator frequency converter; the elevator system power supply is used for providing power for the elevator control panel and the tested elevator frequency converter; the elevator control panel is used for carrying out data interaction with the tested elevator frequency converter.

In one embodiment, a contactor is further arranged inside the box body, the contactor comprises the coil and the normally open contact, an emergency stop switch is further arranged outside the box body, the coil is connected with the elevator system power supply through the emergency stop switch, and the filter is connected with the tested elevator frequency converter through the normally open contact.

In one embodiment, the contactor further comprises the normally closed contact, a resistor is further arranged inside the box body, the resistor, the normally closed contact and the tested elevator frequency converter form a loop, and the resistor is used for discharging of the tested elevator frequency converter.

In one embodiment, an indicator light is further arranged outside the box body and used for being connected with the power supply, and the indicator light is used for identifying the power supply state of the power supply.

In one embodiment, the outer part of the box body is also provided with a transparent panel, and the transparent panel covers the elevator control panel.

In one embodiment, a breaker is further disposed outside the box, and the filter is connected to the power supply through the breaker.

In one embodiment, the outer side surface of the box body is provided with an output terminal row, and the filter is used for being connected with the tested elevator frequency converter through the output terminal row.

In one embodiment, the external side of the box is provided with an input terminal strip, and the filter is used for being connected with the power supply through the input terminal strip.

In one embodiment, the interior of the cabinet is provided with a plurality of floors, each of which is provided with the elevator system power supply and the filter.

In one embodiment, the power supply is a three-phase five-wire power supply.

Above-mentioned elevator converter testing arrangement is when using, and the wave filter provides power supply to elevator system power and surveyed elevator frequency converter with power supply, and elevator system power provides the power for the elevator control panel with surveyed elevator frequency converter, and the elevator control panel carries out data interaction with being surveyed elevator frequency converter to can simulate really being surveyed the actual operating mode of elevator frequency converter in elevator actual operation, realize the test to being surveyed elevator frequency converter, improve the efficiency of elevator frequency converter test.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention in any way.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Furthermore, the drawings are not 1:1, and the relative dimensions of the various elements in the figures are drawn for illustration only and not necessarily to true scale.

Fig. 1 is a schematic view of a first structure of a testing device of an elevator frequency converter;

FIG. 2 is a schematic diagram of a second structure of the elevator frequency converter testing device;

fig. 3 is an electrical circuit diagram of an elevator frequency converter testing device.

Description of reference numerals:

10. an elevator frequency converter testing device; 100. an elevator control panel; 200. a box body; 210. an elevator system power supply; 220. a filter; 230. a contactor; 231. a coil; 232. a normally open contact; 233. a normally closed contact; 240. a resistance; 250. laminating the board; 300. a frequency converter of the tested elevator; 400. a scram switch; 500. an indicator light; 600. a transparent panel; 700. a circuit breaker; 800. an output terminal row; 900. and inputting the terminal block.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The early elevator system adopts three-phase electricity (including R/S/T/PE) power supply, no N line, and elevator converter and system power all adopt AC380V design, and wherein the converter drive power gets in direct current bus electric capacity, and the electricity-up buffering is built in the converter, and converter test circuit is simple easily overall arrangement. In recent years, with the reduction of cost of elevator components, the elevator system adopts three-phase five-wire (including R/S/T/N/PE) power supply, the system power supply generally adopts AC220V design, and the frequency converter power supply adopts AC380V design, but the driving power supply of the frequency converter power supply is supplied by an external system power supply. Along with the change of elevator converter system architecture, the elevator converter can't go the test according to original mode, and the platform that the test was built needs the part of a great variety, and it is numerous, the circuit is numerous to build the test platform part temporarily, and wastes time and energy, and the converter belongs to forceful electric power equipment simultaneously, and current overall arrangement also is difficult to satisfy the requirement of electrical safety debugging. This application aims at improving the efficiency of elevator converter test, can the operation of true simulation elevator system, also can ensure elevator converter debugging personnel's life safety.

Referring to fig. 1, 2 and 3, the present application provides an elevator frequency converter testing apparatus 10, where the elevator frequency converter testing apparatus 10 includes: an elevator control panel 100 and a case 200; an elevator control panel 100 is arranged outside the box body 200, and the elevator control panel 100 is connected with an elevator frequency converter 300 to be tested; an elevator system power supply 210 and a filter 220 are arranged in the box body 200; the elevator system power supply 210 is connected with the elevator control panel 100 and is connected with the tested elevator frequency converter 300; the filter 220 is connected with the elevator system power supply 210 and respectively connected with the power supply and the tested elevator frequency converter 300; the filter 220 is used for providing power of the power supply source to the elevator system power source 210 and the tested elevator frequency converter 300; the elevator system power supply 210 is used for providing power for the elevator control panel 100 and the tested elevator frequency converter 300; the elevator control panel 100 is used for data interaction with the tested elevator frequency converter 300.

Wherein, the box 200 can be a cuboid box 200, the elevator control panel 100 is arranged above the exterior of the box 200, the data interface (FAI) of the elevator control panel 100 (MPU) is used for connecting with the data interface (FAI) of the tested elevator frequency converter 300 (INV), and can be connected through a 40P dedicated data line, the interior of the box 200 is provided with an elevator system power supply 210 and a filter 220 (EMI), the elevator system power supply 210 is connected with the elevator control panel 100, and can be connected with the power receiving interface of the elevator control panel 100 through the power output interface of the elevator system power supply 210 (for example, GND2, P15, N15A, P5 and GND1 interfaces of the elevator system power supply 210 are respectively connected with GN48, P15A, N15A, P5 and GND interfaces of the elevator control panel 100), the elevator system power supply 210 is connected with the tested elevator frequency converter 300, can be connected with a driving power supply receiving interface (marked with 1) of the tested elevator frequency converter 300 through a power supply output interface (for example, the power supply output interface can be a P24 interface which represents a 24V output power supply interface, in addition, two GND2 interfaces of the elevator system power supply 210 are respectively connected with a 0V receiving interface and a PWR/1 interface which are marked with 2 of the tested elevator frequency converter 300), the filter 220 is connected with a power supply and is respectively connected with the elevator system power supply 210 and the tested elevator frequency converter 300, the power supply of the power supply can sequentially pass through an input terminal row 900 (the input terminal row 900 can comprise R1, S1, T1, N1 and PE interfaces, wherein R, S and T represent a live wire of a three-phase power supply, N represents a zero wire, PE represents a ground wire and is connected with the ground), and a MAIN switch (MAIN) and then passes through the filter 220 for anti-electromagnetic interference treatment, and respectively enter the interfaces R, S and T of the tested elevator frequency converter 300 through the normally open contact 232 (which may be named 5 or 5R, and the normally open contact 232 may be connected to the resistor 240) and the interfaces R, S and T of the output terminal bank 800 (where the PE interface is grounded) of the contactor 230, so as to supply power to the tested elevator frequency converter 300, the interfaces U, V and W of the tested elevator frequency converter 300 may be connected to the interfaces U, V and W of the MOTOR (MOTOR) so as to supply power to the MOTOR, that is, the filter 220 is used to provide power of the power supply to the elevator system power supply 210 and the tested elevator frequency converter 300, the elevator system power supply 210 is used to provide power to the elevator control board 100 and the tested elevator frequency converter 300, and the elevator control board 100 is used to perform data interaction with the tested elevator frequency converter 300.

Illustratively, 9 interfaces, namely R0, S0, T0, N0, R, S, T, N and E interfaces, may be provided in the filter 220, wherein the R0, S0, T0 and N0 interfaces are respectively connected to the R1, S1, T1 and N1 interfaces of the input terminal row 900 through the main switch, the R, S and T interfaces are sequentially connected to the R, S and T interfaces of the detected elevator frequency converter 300 through the normally open contact 232 and the output terminal row 800 (R, S and T interfaces), i.e., the detected elevator frequency converter 300 is supplied with 380V three-phase power, the T and N interfaces of the filter 220 are respectively connected to the N and T interfaces of the elevator system power supply 210, i.e., the elevator system power supply 210 is supplied with 220V power, the E interface of the filter 220 is grounded, and a PE interface is also provided in the elevator system power supply 210 for grounding.

Above-mentioned elevator converter testing arrangement 10 is when using, the power that filter 220 will supply power supply provides to elevator system power 210 and surveyed elevator converter 300, elevator system power 210 provides the power for elevator control panel 100 and surveyed elevator converter 300, elevator control panel 100 carries out data interaction with surveyed elevator converter 300 to can simulate really being surveyed elevator converter 300's actual operating condition in elevator actual operation, realize the test to surveyed elevator converter 300, improve the efficiency of elevator converter test.

Referring to fig. 1, 2 and 3, in some embodiments, a contactor 230 is further disposed inside the box 200, the contactor 230 includes a coil 231 and a normally open contact 232, an emergency stop switch 400 is further disposed outside the box 200, the coil 231 is connected to the elevator system power supply 210 through the emergency stop switch 400, and the filter 220 is connected to the measured elevator frequency converter 300 through the normally open contact 232. The contactor 230 can be an upper contactor 230 (labeled 5) and an upper buffer contactor 230 (labeled 5R), an interface (P48) of the elevator system power supply 210 is connected with one end of the emergency stop switch 400, the other end of the emergency stop switch 400 is respectively connected with a coil 231 (the coil 231 can be connected in parallel with a diode) and an interface (PWR/2) of the tested elevator frequency converter 300, the coil 231 can be connected in parallel and respectively connected with the Z5 and Z5R interfaces of the elevator control board 100, and the filter 220 can be connected with the tested elevator frequency converter 300 through a normally open contact 232. So, can realize when normal test, operation elevator control panel 100 control is surveyed elevator converter 300 driving motor, when meetting emergency, disconnection scram switch 400, coil 231 cuts off the power supply to normally open contact 232 becomes the off-state by the closed condition, is surveyed elevator converter 300 outage (has disconnected power supply of power supply), thereby improves the security of elevator converter test.

Referring to fig. 1, 2 and 3, in some embodiments, the contactor 230 further includes a normally closed contact 233, a resistor 240 is further disposed inside the box 200, the resistor 240, the normally closed contact 233 and the tested elevator frequency converter 300 form a loop, and the resistor 240 is used for discharging the tested elevator frequency converter 300. The bus capacitor in the tested elevator inverter 300 is connected to the resistor 240 (DBR) and the normally closed contact 233 (5 and 5R) through the plus (+), and minus (-) interfaces of the output terminal bank 800, thereby forming a circuit. Therefore, when an emergency situation occurs, the emergency stop switch 400 is disconnected, the coil 231 is powered off, the normally open contact 232 is changed from the closed state to the open state, the tested elevator frequency converter 300 is powered off (the power supply of the power supply is disconnected), and a bus capacitor, a resistor 240 and a normally closed contact 233 in the tested elevator frequency converter 300 form a discharge loop, so that automatic discharge when the tested elevator frequency converter 300 is powered off is realized, the personal safety of a user is ensured, and the safety of the test of the elevator frequency converter is improved.

Referring to fig. 1, 2 and 3, in some embodiments, an indicator lamp 500 is further disposed outside the box 200, the indicator lamp 500 is used for being connected to a power supply, and the indicator lamp 500 is used for identifying a power supply state of the power supply. The indicator lamp 500 (PL) may be connected in series to any two of the three phase power lines of the power supply (e.g., the R line and the T line), and may be connected to the R1 and the T1 lines in the input terminal block 900. Therefore, the power supply state of the power supply can be visually observed outside the box body 200, and the safety of the test of the elevator frequency converter is improved.

Referring to fig. 1 and 2, in some embodiments, a transparent panel 600 is further disposed outside the box body 200, and the transparent panel 600 covers the elevator control panel 100. The transparent panel 600 may be a rectangular transparent panel 600, which can be rotated at multiple angles (e.g., 90 degrees). Therefore, the state of the elevator control panel 100 can be observed visually by a user conveniently, and the user can operate the elevator control panel 100 conveniently, so that the efficiency and convenience of the elevator frequency converter test are improved.

Referring to fig. 1, in some embodiments, a circuit breaker 700 is further disposed outside the box 200, and the filter 220 is configured to be connected to a power supply through the circuit breaker 700. Therefore, the power-on and power-off of the elevator frequency converter testing device 10 can be realized through the circuit breaker 700, and the safety of the elevator frequency converter testing is improved.

Referring to fig. 1, 2 and 3, in some embodiments, an output terminal row 800 is disposed on an outer side surface of the case 200, and the filter 220 is configured to be connected to the tested elevator frequency converter 300 through the output terminal row 800. Wherein, the output terminal row 800 can be provided with 6 interfaces, which are R, S, T, PE, plus (+), and minus (-) interfaces, one end of the R, S, and T interfaces can be connected to the power-on buffer circuit (i.e., the normally open contacts 232 of 5 and 5R, for example, one normally open contact 232 of the first 5R can be connected in series with the resistor RSH and in parallel with one normally open contact 232 of the first 5R, one end of the parallel connection is connected to the R interface of the filter 220, the other end of the parallel connection is connected to the R interface of the output terminal row 800, one end of one normally open contact 232 of the second 5R is connected to the S interface of the filter 220, the other end is connected to the S interface of the output terminal row 800, one normally open contact 232 of the third 5R is connected in parallel with one normally open contact 232 of the second 5R, one end of the parallel connection is connected with a T interface of the filter 220, the other end of the parallel connection is connected with a T interface of the output terminal row 800), the other ends of the R, S and T interfaces can be connected with R, S and T interfaces of the tested elevator converter 300, the PE interface is grounded, one ends of the positive (+), negative (-) interfaces are connected with the resistor 240 (DBR), the normally closed contacts 233 with the labels 5 and 5R, and the other ends are connected with the bus capacitor in the tested elevator converter 300 to form a discharge circuit. Therefore, the devices in the elevator frequency converter testing device 10 can be stably and quickly connected with the tested elevator frequency converter 300, and the accuracy and the efficiency of the elevator frequency converter testing are improved.

Referring to fig. 1, 2 and 3, in some embodiments, an input terminal strip 900 is disposed on an outer side surface of the case 200, and the filter 220 is configured to be connected to a power supply through the input terminal strip 900. The input terminal block 900 may have 5 interfaces, which are R1, S1, T1, N1, and PE interfaces, respectively, and one end of the input terminal block 900 is connected to a power supply (three-phase five-wire power supply), and the other end is connected to the main switch (or the circuit breaker 700). Therefore, the elevator frequency converter testing device 10 can be connected with the power supply more stably and quickly, and the accuracy and the efficiency of the elevator frequency converter testing are improved.

Referring to fig. 1 and 2, in some embodiments, the interior of the housing 200 is provided with a plurality of floors 250, the floors 250 each being provided with an elevator system power supply 210 and a filter 220. The exterior of the box 200 may be assembled by two U-shaped components (on which a handrail may be disposed), the transparent panel 600 and the elevator control panel 100 may be disposed above the exterior of the box 200, a plurality of (e.g., two) layer boards 250 may be disposed inside the box 200, the AC220V elevator system power supply 210 is disposed on the upper layer board 250 inside the box 200, and the AC380V strong electric devices such as the filter 220, the contactor 230, and the resistor 240 (discharge resistor DBR) are disposed on the lower layer board 250. Therefore, the operation of electrical layout and debugging personnel can be facilitated, and the efficiency of the test of the elevator frequency converter is improved.

Referring to fig. 1 and 2, in some embodiments, the power supply is a three-phase five-wire power supply. Therefore, the actual operation condition of the tested elevator frequency converter 300 during the actual operation of the elevator can be truly simulated for the tested elevator frequency converter 300 which needs the three-phase five-wire power supply during the normal operation.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

All possible combinations of the technical features in the above embodiments may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. An elevator converter testing arrangement, characterized by, includes: an elevator control panel and a box body; the elevator control panel is arranged outside the box body and is connected with the frequency converter of the tested elevator; an elevator system power supply and a filter are arranged in the box body; the elevator system power supply is connected with the elevator control panel and is connected with the tested elevator frequency converter; the filter is connected with the power supply of the elevator system and is respectively connected with a power supply and the frequency converter of the tested elevator;

the filter is used for providing power of the power supply source to the elevator system power source and the tested elevator frequency converter; the elevator system power supply is used for providing power for the elevator control panel and the detected elevator frequency converter; the elevator control panel is used for carrying out data interaction with the tested elevator frequency converter.

2. The elevator frequency converter testing device according to claim 1, wherein a contactor is further arranged inside the box body, the contactor comprises a coil and a normally open contact, an emergency stop switch is further arranged outside the box body, the coil is connected with the elevator system power supply through the emergency stop switch, and the filter is connected with the tested elevator frequency converter through the normally open contact.

3. The elevator frequency converter testing device according to claim 2, wherein the contactor further comprises a normally closed contact, a resistor is further arranged inside the box body, the resistor, the normally closed contact and the tested elevator frequency converter form a loop, and the resistor is used for discharging the tested elevator frequency converter.

4. The elevator frequency converter testing device according to claim 1, wherein an indicator light is further arranged outside the box body, the indicator light is used for being connected with the power supply source, and the indicator light is used for identifying the power supply state of the power supply source.

5. The elevator frequency converter testing device according to claim 1, wherein a transparent panel is further provided outside the box body, and the transparent panel covers the elevator control board.

6. The elevator frequency converter testing device according to claim 1, wherein a circuit breaker is further disposed outside the box, and the filter is connected to the power supply source through the circuit breaker.

7. The elevator frequency converter testing device according to claim 1, wherein an output terminal row is provided on an outer side surface of the box body, and the filter is connected with the tested elevator frequency converter through the output terminal row.

8. The elevator frequency converter testing device according to claim 1, wherein an external side of the case is provided with an input terminal block, and the filter is adapted to be connected to the power supply source through the input terminal block.

9. The elevator frequency converter testing apparatus according to claim 1, wherein a plurality of boards are provided inside the case, the boards being provided with the elevator system power supply and the filter, respectively.

10. The elevator frequency converter testing device according to any one of claims 1 to 9, wherein the power supply is a three-phase five-wire power supply.

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