CN202841674U - Portable X-ray Generator - Google Patents

Abstract

A portable X-ray generation unit comprises a housing, a power module, a high voltage generator, an X-ray tube and a beam limiter. The high voltage generator, the X-ray tube and the beam limiter are disposed in the housing. The high voltage generator provides the X-ray tube with operating voltage. The portable X-ray generation unit is characterized in that the power module comprises a rechargeable battery and a solar battery capable of charging the rechargeable battery. The rechargeable battery powers the high voltage generator and the beam limiter. The solar battery is arranged on the outer surface of the housing. The rechargeable battery is arranged in the housing. The portable X-ray generation unit is used with no need of being connected to a mains outlet through a power cord and a power plug and is more convenient and flexible. In addition, the portable X-ray generation unit is available in places with no mains supply, has no mains supply limitation for use and is highly adaptable. The solar battery assists in charging the rechargeable battery, radiographic times per charge of the portable X-ray generation unit are increased, frequent charging operations are reduced, and the portable X-ray generation unit is energy-saving and environment-friendly.

Description

Portable X-ray Generator

technical field

The utility model relates to an instrument for radiation diagnosis, in particular to a portable X-ray generating device.

Background technique

The X-ray generating device is a device that can generate X-rays for clinical diagnosis. Existing portable X-ray generating device comprises housing, power supply module, high-voltage generator, X-ray tube and beam limiter, and high-voltage generator, X-ray tube and beam limiter are arranged in the shell, and power supply module is high-voltage generator And the beam limiter is powered, and the high voltage generator provides the working voltage for the X-ray tube. The power supply module includes an electric plug, a power cord and a rectification circuit, and the electric plug is electrically connected to the input end of the rectification circuit through the power cord.

After the electric plug is inserted into the mains socket, the connected mains 220 V AC is rectified by the rectification circuit, and then supplies power to the high-voltage generator and the beam limiter.

The high-voltage generator includes an inverter module (the inverter module includes a main inverter and a filament heating inverter) and a high-voltage oil tank. After starting up, the mains 220V alternating current is rectified by the rectifier circuit and becomes direct current, which is sent to the inverter module; when the control panel sends an exposure command, the inverter module works, and the main inverter outputs a high-frequency square wave and adds it to the high-voltage fuel tank, generating DC high voltage; the voltage sampling circuit of the high-voltage fuel tank feeds back the sampled high-voltage signal to the pulse width modulation drive module (PWM drive module for short), and the pulse width modulation drive module generates a real-time controlled pulse width modulation signal to adjust the high voltage output by the high-pressure fuel tank , so as to obtain a stable DC high voltage. When selecting a different combination of tube current and tube voltage, the control program outputs the corresponding filament data through the digital-to-analog conversion circuit to output a control signal during preparation. The control signal controls the filament heating inverter, so that the filament heating inverter generates pulse width modulation. High-frequency AC voltage, the pulse-width-modulated high-frequency AC voltage excites the filament of the X-ray tube to generate heat. X-rays occur when the DC high voltage output from the high-voltage fuel tank and the pulse width modulated high-frequency AC voltage generated by the filament heating inverter are simultaneously loaded on the X-ray tube.

The above-mentioned portable X-ray generating device is a portable handheld device, but since it must be powered by 220 V AC from the mains, it must be plugged into a mains socket to work when in use, so its practical application is limited. When the place of use is far away from the mains socket, it needs to pass Very long power cord connection, very cumbersome and unusable without mains power supply.

Contents of the invention

The technical problem to be solved by the utility model is to provide a portable X-ray generating device, which is convenient and flexible to use, has strong adaptability, and is energy-saving and environment-friendly. The technical scheme adopted is as follows:

A portable X-ray generating device, comprising a housing, a power module, a high-voltage generator, an X-ray tube and a beam limiter, the high-voltage generator, the X-ray tube and the beam limiter are arranged in the housing, and the high-voltage generator is an X-ray The ball tube provides working voltage, and it is characterized in that: the power module includes a rechargeable battery and a solar battery capable of charging the rechargeable battery, the rechargeable battery supplies power to the high voltage generator and the beam limiter, the solar battery is arranged on the outer surface of the shell, and the charging The battery is arranged in the casing.

Except for a small part of the outer surface of the casing of the portable X-ray generator for arranging the control panel, most of the vacant space is left. Install solar cells in these vacant places to absorb sunlight and convert light energy into electrical energy. And use the electric energy output by the solar cell to charge the rechargeable battery, and then provide the energy from the rechargeable battery to the high voltage generator and the beam limiter. If it works in the field, it can basically meet the power consumption demand of the X-ray generating device, and is environmentally friendly and energy-saving.

Rechargeable batteries usually use li-po batteries with high current output (that is, polymer lithium-ion batteries), and their internal resistance is very low. Direct charging with solar cells will cause the solar cells to heat up quickly and burn out, and excessive charging current will affect charging. Battery Life. In order to protect the solar battery and rechargeable battery and prolong the service life of the power module, in the preferred solution, a constant current charging circuit is provided between the solar battery and the rechargeable battery, and the output terminal of the solar battery is electrically connected to the input terminal of the constant current charging circuit. The output terminal of the current charging circuit is electrically connected with the charging port of the rechargeable battery.

Compared with the prior art, the utility model has the following beneficial effects: the utility model uses a rechargeable battery to supply power instead of the existing mains power supply, and does not need to be connected to the mains socket through a power cord and a power plug during use, which is more convenient and flexible; It can also be used in places powered by electricity, and the application occasion is not limited by the power supply of the mains, and has strong adaptability; the auxiliary charging of the rechargeable battery through the solar battery can not only increase the number of filmings per charge (referring to charging with the mains). , reduce frequent charging operations, and save energy and protect the environment. The voltage of the rechargeable battery can be 29.6VDC, which belongs to the safe voltage range, and there is no danger of electric shock.

Description of drawings

Fig. 1 is a schematic diagram of the external structure of a preferred embodiment of the utility model;

Fig. 2 is the schematic block diagram of the circuit of the power supply module in the preferred embodiment of the utility model;

Fig. 3 is a schematic circuit diagram of the power module in the preferred embodiment of the present invention.

Detailed ways

This portable X-ray generating device comprises shell 1, power supply module, high-voltage generator, X-ray tube and beam limiter, and high-voltage generator, X-ray tube and beam limiter are arranged in shell 1, and high-voltage generator is X The ray tube provides working voltage. The specific structure of the high-voltage generator, X-ray tube and beam limiter, as well as the connection relationship and relative positional relationship among the power module, high-voltage generator, X-ray tube and beam limiter, can all adopt the existing technology. This will not be described in detail.

Referring to Figures 1-3, in this embodiment, the power module includes a rechargeable battery 2 and a solar battery 3 capable of charging the rechargeable battery 2, and the rechargeable battery 2 (the rechargeable battery 2 uses a li-po battery with a large current output) is a high-voltage generator The solar battery 3 and the rechargeable battery 2 are provided with a constant current charging circuit 4, the output terminal of the solar battery 3 is electrically connected with the input terminal of the constant current charging circuit 4, and the output terminal of the constant current charging circuit 4 is connected with the input terminal of the constant current charging circuit 4. The charging port of the rechargeable battery 2 is electrically connected. The solar battery 3 is arranged on the outer surface of the casing 1 , and the rechargeable battery 2 is arranged in the casing 1 . Except for a small portion of the outer surface of the casing 1 for arranging structures such as the control panel 5 , most of the free space is left, and these free places can be used for installing the solar battery 3 .

The solar cell 3 can absorb sunlight and convert light energy into electric energy, and charge the rechargeable battery 2 through the constant current charging circuit 4, and the rechargeable battery 2 can provide energy to the high voltage generator and the beam limiter.

Claims (2)

1. Portable X-ray generating means, comprise shell, power module, high pressure generator, X ray bulb and beam-defining clipper, high pressure generator, X ray bulb and beam-defining clipper are located in the shell, high pressure generator provides operating voltage for the X ray bulb, it is characterized in that: described power module comprises rechargeable battery and can be to the solar cell of rechargeable battery charging, rechargeable battery is high pressure generator and beam-defining clipper power supply, solar cell is located on the outer surface of shell, and rechargeable battery is located in the shell.

2. Portable X-ray generating means according to claim 1, it is characterized in that: be provided with constant-current charging circuit between described solar cell and the rechargeable battery, the output of solar cell is electrically connected with the input of constant-current charging circuit, and the output of constant-current charging circuit is electrically connected with the charging port of rechargeable battery.

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