CN215986204U

CN215986204U - Multifunctional test power supply table for maintenance

Info

Publication number: CN215986204U
Application number: CN202121860294.7U
Authority: CN
Inventors: 张东东; 李凤霞; 苗海阔; 王烟潍; 管青
Original assignee: Sinopharm Medical Engineering Shandong Medical Technology Co ltd
Current assignee: Sinopharm Medical Engineering Shandong Medical Technology Co ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2022-03-08
Anticipated expiration: 2031-08-10

Abstract

The utility model belongs to the technical field of maintenance power supply application, and particularly relates to a multifunctional test power supply table for maintenance. The multifunctional test power supply table for maintenance can adjust voltage required by equipment, is internally provided with the isolation transformer, ensures that maintenance personnel safety is ensured in the process of detecting the equipment, is provided with an overcurrent protection module, can automatically cut off power in time and ensures the safety of the maintenance personnel when short circuit or overcurrent occurs in the equipment.

Description

Multifunctional test power supply table for maintenance

Technical Field

The utility model belongs to the technical field of maintenance power supply application, and particularly relates to a multifunctional test power supply table for maintenance.

Background

In the detection of the existing medical equipment, a maintenance power supply is required to provide power, the existing maintenance power supply is generally a direct-current power supply and has no alternating-current output or an alternating-current power supply and no direct-current output, the existing medical equipment is mostly imported abroad, the use voltage of the existing medical equipment is diversified, the existing medical equipment is commonly 110V and 220V, some equipment uses 100V and 126V and the like, and most of the voltage cannot be used for testing when being powered on in the maintenance process. This results in different medical equipment to use the dedicated maintenance power supply, and this results in that maintenance personnel need to carry a variety of different power supplies when carrying out maintenance work, brings serious inconvenience for maintenance work.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problems of the maintenance power supply, the utility model provides a multifunctional test power supply table for maintenance, which has the advantages of reasonable design, simple structure and convenient processing and can effectively realize various power supply outputs.

In order to achieve the above object, the utility model provides a multifunctional testing power supply stand for maintenance, which comprises a 220V power supply transmission interface and a voltage regulator connected with the 220V power supply transmission interface, wherein an output end of the voltage regulator is electrically connected with an isolation protection transformer, an output end of the isolation protection transformer is electrically connected with a direct current and alternating current switch, the direct current and alternating current switch is in switching communication with an alternating current output circuit and a direct current output circuit, the alternating current output circuit is provided with a rectifier plate, the 220V power supply transmission interface is also in communication with a short circuit adjusting circuit for short circuit voltage regulator, a voltage adjusting switch is arranged between the voltage regulator and the isolation protection transformer, the voltage adjusting switch is in switching connection with the voltage regulator and the short circuit adjusting circuit, and an isolation short circuit for short circuit isolation protection transformer is also arranged between the voltage regulator and the isolation protection transformer, an isolation switch is arranged between the isolation protection transformer and the direct current-alternating current switch, and the isolation switch is in switching connection with the isolation protection transformer and the isolation short-circuit line.

Preferably, still be provided with protection switch on isolation protection transformer and the direct current-alternating current switch, protection switch passes through protection circuit control, the 12V transformer of protection circuit protection and 220V power transmission interface, 12V transformer electric connection has 12V cowling panel, the output of 12V cowling panel is connected with the protection module who is used for controlling protection switch.

Preferably, an alternating current display nixie tube is arranged between the 220V power supply transmission interface and the 12V transformer.

Preferably, the output end of the 12V rectifying plate is connected with a direct current display nixie tube.

Preferably, a protection lamp and a lamp series switch for short-circuiting the protection lamp are further arranged between the isolation change-over switch and the direct current/alternating current change-over switch.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. the utility model provides a multifunctional test power supply table for maintenance, which can adjust the voltage required by equipment, ensures the safety of maintenance personnel in the process of detecting the equipment by arranging an isolation transformer in the equipment, and is provided with an overcurrent protection module, so that the equipment can be automatically powered off in time and the safety of the maintenance personnel due to short circuit or overcurrent.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a multifunctional test power supply stand for maintenance according to embodiment 1.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1, this embodiment aims at providing a power supply stand capable of realizing direct and alternating current output and adjusting voltage, so as to reduce the number of power supplies carried by maintenance personnel and facilitate maintenance of medical equipment, and for this reason, the multifunctional test power supply stand for maintenance provided by this embodiment includes a 220V power supply transmission interface and a voltage regulator connected with the 220V power supply transmission interface, and the voltage regulator is used for adjusting voltage, current and power applied to a load, and in this embodiment, a voltage regulation protection switch S1 is provided on a circuit between the voltage regulator and the 220V power supply transmission interface.

The output end of the voltage regulator is electrically connected with an isolation protection transformer, and the isolation protection transformer completely insulates the electricity of the primary side and the secondary side and isolates the loop. The whole circuit is further protected, the output end of the isolation protection transformer is electrically connected with a direct current and alternating current changeover switch SA3, the direct current and alternating current changeover switch SA3 is used for achieving direct current and alternating current changeover SA3, the direct current and alternating current changeover switch SA3 is in switching communication with an alternating current output circuit and a direct current output circuit, a rectifying plate is arranged on the alternating current output circuit and is a common rectifying bridge and used for converting alternating current into direct current, and control switches S4 and S5 are arranged on the alternating current output circuit and the direct current output circuit and used for achieving alternating current or direct current output.

In order to realize multifunctional switching, the 220V power supply transmission interface is also communicated with a short-circuit regulating circuit for short-circuiting the voltage regulator, a voltage regulating switch SA1 is arranged between the voltage regulator and the isolation protection transformer, and the voltage regulating switch SA1 is in switching connection with the voltage regulator and the short-circuit regulating circuit, so that whether the voltage regulator participates in work or not can be realized through the switching of the voltage regulating switch SA 1. In order to protect the voltage regulator, a control switch S1 is provided in the circuit thereof to protect the voltage regulator.

Meanwhile, an isolation short-circuit line for short-circuit isolation protection transformer is arranged between the voltage regulator and the isolation protection transformer, an isolation switch SA2 is arranged between the isolation protection transformer and the direct current-alternating current switch, and the isolation switch is in switching connection with the isolation protection transformer and the isolation short-circuit line. Thus, whether the isolation protection transformer participates in the work or not can be realized by switching the isolation switch SA 2. Similarly, in order to protect the isolation protection transformer, a control switch S2 is provided in the circuit thereof, so as to protect the isolation protection transformer.

Through the arrangement, when S1 and S2 are disconnected, SA1 and SA2 are pulled up: SA3 is turned on, S4 is closed, and direct current is directly output (no voltage regulation and isolation is carried out); SA3 is toggled down, S5 is closed, and AC is directly output (without voltage regulation and isolation), forming a pass-through mode.

When S1 is opened and S2 is closed, SA1 is pulled up and SA2 is pulled down: SA3 is turned on, S4 is closed, and direct current is directly output (no voltage regulation is carried out); and when the SA3 is pulled down, the S5 is closed, the alternating current is directly output (without voltage regulation), the isolation protection transformer works, and the voltage regulator does not work, so that an isolation mode is formed.

When S1 is closed and S2 is opened, SA1 is dialed down and SA2 is dialed up: SA3 is pulled up, S4 is closed, and direct current is directly output (voltage can be adjusted without isolation); the SA3 is pulled down, the S5 is closed, the alternating current is directly output (voltage can be adjusted without isolation), the isolation protection transformer does not work, and the voltage regulator works to form a voltage regulation mode.

When S1, S2 are closed, SA1, SA2 dial down: the SA3 is pulled up, S4 is closed, direct current is directly output (voltage can be adjusted, and an output power supply is subjected to isolation protection); and the SA3 is turned off, the S5 is closed, the alternating current is directly output (voltage can be adjusted, an output power supply is subjected to isolation protection), the isolation protection transformer works, and the voltage regulator works to form an isolation voltage regulation mode.

Through the arrangement, power supplies for different medical settings are effectively formed.

In order to protect medical equipment, protective switches are further arranged on an isolation protection transformer and a direct current-alternating current switch, a protective switch SQ is controlled by a protective circuit, the protective circuit protects a 12V transformer of a 220V power supply transmission interface, the 12V transformer is electrically connected with a 12V rectifying plate, the output end of the 12V rectifying plate is connected with a protective module used for controlling the protective switch, the protective module can be an existing common protective circuit, therefore, the SQ switch is controlled by the protective module, when the current in a circuit exceeds a set value, the whole circuit is automatically broken and protected, and the equipment is protected.

For convenience of observation, an alternating current display nixie tube is arranged between the 220V power supply transmission interface and the 12V transformer, and a direct current display nixie tube is connected to the output end of the 12V rectifying plate. Like this, can make things convenient for operating personnel better to observe the operating condition of power supply platform.

In order to avoid the short circuit of burning equipment and the ignition and tripping of an external circuit, a protective lamp and a lamp series switch S3 for short-circuit protective lamps are also arranged between the isolation change-over switch and the direct current change-over switch, so that the air switch QF is turned on, and the 12V transformer works to supply power for the indicating lamp, the direct current display nixie tube and the protective module. The S3 switch is used for short-circuit protection, when the S3 switch is turned on, the bulb is connected in series with the main circuit to protect the rear circuit and equipment so as to prevent the equipment from short-circuit, which causes the ignition, the trip and the accident of maintenance personnel of the external circuit and causes safety accidents, and when the S3 switch is turned off, the bulb is protected from short-circuit, like a circuit. The SQ switch is controlled by a protection module, and when the current in the line exceeds a set value, the whole line is automatically broken for protection.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims

1. A multifunctional test power supply stand for maintenance is characterized by comprising a 220V power supply conveying interface and a voltage regulator connected with the 220V power supply conveying interface, wherein the output end of the voltage regulator is electrically connected with an isolation protection transformer, the output end of the isolation protection transformer is electrically connected with a direct current and alternating current change-over switch, the direct current and alternating current change-over switch is switched and communicated with an alternating current output circuit and a direct current output circuit, the alternating current output circuit is provided with a rectifier plate, the 220V power supply conveying interface is also communicated with an adjusting short-circuit line for short-circuit voltage regulator, a voltage adjusting change-over switch is arranged between the voltage regulator and the isolation protection transformer, the voltage adjusting change-over switch is switched and connected with the voltage regulator and the adjusting short-circuit line, an isolating short-circuit line for short-circuit isolation protection transformer is also arranged between the voltage regulator and the isolation protection transformer, an isolation switch is arranged between the isolation protection transformer and the direct current-alternating current switch, and the isolation switch is in switching connection with the isolation protection transformer and the isolation short-circuit line.

2. The multifunctional test power supply stand for maintenance according to claim 1, wherein a protection switch is further disposed on the isolation protection transformer and the dc/ac switch, the protection switch is controlled by a protection circuit, the protection circuit protects a 12V transformer of a 220V power supply transmission interface, the 12V transformer is electrically connected with a 12V rectifying board, and an output end of the 12V rectifying board is connected with a protection module for controlling the protection switch.

3. The multifunctional test power supply stand for maintenance according to claim 2, wherein an ac display nixie tube is arranged between the 220V power supply delivery interface and the 12V transformer.

4. The multifunctional test power supply stand for maintenance according to claim 3, wherein a DC display nixie tube is connected to the output end of the 12V rectifying plate.

5. The multifunctional test power supply stand for maintenance according to claim 4, wherein a protection lamp and a lamp series switch for short-circuit protection lamp are further provided between the isolation switch and the DC/AC switch.