CN214343986U - Portable infrared LED therapeutic instrument and therapeutic equipment - Google Patents

Abstract

The utility model relates to a portable infrared LED therapeutic instrument and equipment. The portable infrared LED therapeutic apparatus comprises a shell and an internal circuit board; the internal circuit board is provided with an internal circuit; the therapeutic apparatus is palm-held equipment; a transmission window serving as an irradiation surface is arranged on the shell, and a plurality of infrared LEDs arranged on the internal circuit board are arranged in the transmission window of the shell; the internal circuit board controls the infrared LEDs to generate infrared light, and the infrared light is output through the transmission window to perform infrared photo-thermal treatment. The portable infrared LED therapeutic equipment also comprises a function control circuit for controlling the work of the therapeutic instrument. The utility model discloses portable infrared LED therapeutic instrument small in size, convenient to carry, use nimble, contact temperature is controllable, and the patient experiences the preferred.

Description

Portable infrared LED therapeutic instrument and therapeutic equipment

Technical Field

The utility model belongs to the technical field of medical device and specifically relates to a portable infrared LED therapeutic instrument and treatment facility.

Background

Phototherapy is a method for preventing and treating diseases by using an artificial light source or a natural light source, and is one of the commonly used methods for physical therapy. The infrared ray frequency and energy are lower, and only can penetrate through the gaps of atomic molecules, but cannot penetrate into the atoms and the molecules, through infrared ray irradiation, the vibration of the atoms and the molecules is accelerated, the distance is enlarged, namely the thermal motion energy is increased, physical effects such as temperature rise, melting, vaporization and the like can be generated on substances, the structures of substance atoms and molecules are not changed, and the infrared ray physical therapy is a safe and diversified physical therapy method due to the characteristics of the infrared ray.

Besides the heat effect, the infrared ray also has a penetration effect, the special infrared LED for the biological medical treatment has the wavelength of 880nm, belongs to near infrared rays, can penetrate human tissues by 10 mm, can enable hemoglobin in endothelial cells and blood cells to release nitric oxide, and the nitric oxide is absorbed by body cells, and has physiological and therapeutic effects of promoting telangiectasia, improving local blood circulation, relieving muscle spasm, relieving pain and the like. The infrared ray can improve the phagocytic capacity of phagocytes, improve the immunity of a human body, promote the absorption and the elimination of chronic inflammation, eliminate swelling and hydrops and have better curative effect on acute and chronic arthropathy; the infrared ray plays an important role in improving tissue nutrition, and not only can promote the regeneration of fibroblasts, but also has important significance in the regeneration of fibroblasts, so that the infrared ray has a better promotion effect on wound healing; the infrared ray can diminish inflammation, relieve pain, relieve postoperative adhesion, promote scar softening, and relieve scar contracture; the infrared radiation can improve the oxygen supply of the skin, dry the skin and have better treatment effect on bedsore and chilblain; the infrared radiation also has effects of dilating blood vessel and reducing nerve excitability, and can be used for relieving or treating nerve pain after injury, herpes zoster, diabetes ED, prostatitis, etc.

Traditional phototherapy equipment generally adopts the form of external lamp to the halogen lamp sets up the radiant intensity as the light source through the distance of adjusting light source power and light source and affected part, shines area, radiant energy and hardly adjusts as required, and except that light source self consumption is big, and illumination density is inhomogeneous, and some product wavelength range is wide, still transmits harmful ultraviolet composition, has obvious side effect simultaneously: when patients are treated, the heat sensation is obvious, a large amount of water is required to be supplemented, and erythema and pigmentation can be caused when the illumination intensity is too strong or the illumination time is too long; in recent years, some novel phototherapy devices, such as lamp-type therapeutic apparatuses using high-power LEDs, have appeared at home and abroad, and some of the above problems still exist; there are also phototherapy devices that can be applied to the affected area, each of which has advantages and disadvantages, the main disadvantages of which are: most of the equipment is special for medical institutions, and has the disadvantages of complex operation, large volume and weight and inconvenience in carrying; maintenance is difficult and maintenance cost is high; the treatment form is single, the contact temperature is not controllable, the experience of patients is not good, and the like.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the utility model provides a portable infrared LED therapeutic instrument, solves current phototherapy equipment and carries inconvenience, patient experience not good scheduling problem.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a portable infrared LED therapeutic apparatus comprises a shell and an internal circuit board; the internal circuit board is provided with an internal circuit; the portable infrared LED therapeutic apparatus is palm-held equipment; a transmission window serving as an irradiation surface is arranged on the shell, and a plurality of infrared LEDs arranged on an internal circuit board are arranged in the transmission window of the shell; the internal circuit board controls the infrared LEDs to generate infrared light, and the infrared light is output through the transmission window to perform infrared photo-thermal treatment.

Furthermore, the therapeutic apparatus is provided with a temperature sensor and is connected with an internal circuit, and the temperature sensor is arranged at the position of the transmission window and/or in the transmission window and is used for measuring the temperature of the transmission window and/or in the transmission window; the temperature sensor realizes automatic temperature control through the internal circuit; the internal circuit is provided with an over-temperature protection circuit, and when the temperature in the transmission window and/or the transmission window exceeds a set value, the internal circuit controls to close the power supply input; the internal circuit controls the infrared LEDs to select high energy or low energy to output; the internal circuit is provided with a motor driving circuit which is connected with and drives the vibration motor to realize vibration massage; the internal circuit board is also provided with a plurality of red LEDs; the plurality of red light LEDs form an auxiliary red light LED array and are positioned inside the transmission window of the shell.

Furthermore, the internal circuit comprises an infrared LED driving signal circuit which is connected with and drives the plurality of infrared LEDs; the infrared LED driving signal circuit comprises the temperature sensor and a PWM (pulse width modulation) circuit, and realizes automatic temperature control so that the irradiation surface of the therapeutic apparatus achieves the effect of approximate constant temperature; the two temperature sensors are controlled by signals to be combined in parallel, so that the switching of high-energy and low-energy output is realized; the over-temperature protection circuit comprises the temperature sensor and a hysteresis comparator, and the power supply input is turned off when the temperature exceeds a set value through the temperature sensor and the hysteresis comparator; the temperature sensor comprises two temperature resistors NTC; the motor driving circuit includes a sawtooth wave generating and pulse width modulating circuit to provide a predetermined voltage and intermittent driving of the vibration motor.

Furthermore, the PWM circuit generates a sawtooth wave and is connected with the negative input of the voltage comparator, and a level signal generated by the temperature resistance NTC circuit is connected with the positive input of the voltage comparator; along with the temperature rise, the resistance value of the NTC resistor is reduced, the level signal is reduced, the duty ratio of the PWM signal output by the comparator is reduced, and therefore temperature negative feedback is achieved; the driving current of the infrared LED driving signal circuit changes along with the temperature: the temperature is increased, the current is reduced, the temperature is reduced, and the current is increased, so that the irradiation surface of the therapeutic apparatus achieves the effect of approximate constant temperature; as the temperature increases, the level of the NTC resistance decreases; when the internal circuit controls the infrared LEDs to select high energy output, the NTC basic resistance value is 10K; when the internal circuit controls the infrared LEDs to select low energy output, the basic resistance value of the NTC resistor is 10K and 22K in parallel; when high energy output is selected, the duty ratio of the PWM signal is larger than that of the low energy output, the driving current of the infrared LED driving signal circuit is also larger, and therefore the generated temperature is also higher; the working temperature of the irradiation surface of the therapeutic apparatus is constant at 40-45 ℃.

In some embodiments, the infrared LEDs form an array to achieve uniform output of light energy; the infrared LEDs are dozens of infrared LEDs with small power and small encapsulation; the power supply input of the therapeutic apparatus is 12V direct current; the transmission window is an elliptical window with the size of 49 x 55 mm; said treatment apparatus is a palm-held device of about 110 x 75 x 25 mm; the wavelength of the red light LED is 640 nm; the infrared LED wavelength is 880nm, and the appearance of the therapeutic instrument is similar to a mouse palm support. A heat-conducting silica gel pad is also arranged in the shell to adjust the temperature balance of the shell; the honeycomb holes are further formed in the shell and used for heat dissipation, so that temperature balance in the shell is achieved.

Further, the internal circuit includes a control signal input; the control signal input comprises a power supply input signal, GND, an auxiliary function selection signal and a high-low energy selection signal; the power input signal is used for inputting power to the therapeutic apparatus; the power supply input signal is connected with the infrared LEDs and used for inputting direct current; the auxiliary function selection signal is connected with the motor driving circuit and/or the plurality of red light LEDs and is used for selecting whether to start the vibration motor and the red light LEDs; the power supply input signal is electrically connected with the red LED; the high-low energy selection signal is connected with the infrared LEDs to realize high-energy or low-energy infrared output; the internal circuit comprises an LED circuit and a control circuit which are electrically connected with each other; the LED circuit is integrated on the LED circuit board, and the control circuit is integrated on the control circuit board; the LED circuit board and the control circuit board are two mutually electrically connected circuit boards or are integrated on the same circuit board; the LED circuit board and the control circuit board form an internal circuit board which is arranged inside the shell.

Furthermore, the control circuit comprises a control signal input and control signal output, an over-temperature protection circuit, a motor driving circuit and a vibration motor connected with the motor driving circuit; the LED circuit includes: the infrared LED driving circuit comprises a control signal input circuit, an infrared LED driving signal circuit and a plurality of infrared LEDs; the control signal input of the LED circuit is connected with the control signal output of the control circuit; the LED circuit further comprises the plurality of red LEDs; the control signal input of the internal circuit comprises a control signal input of the control circuit and a control signal input of the LED circuit connected with the control signal output; the control signal input of the internal circuit is connected with an external signal cable.

In some embodiments, the housing comprises an upper shell and a lower shell which are buckled; a waterproof adhesive tape is arranged at the edge between the upper shell and the lower shell; the upper and lower shells, the LED circuit board and the control circuit board are further fastened by screws; a waterproof gasket is arranged on the screw, and the screw hole is sealed by a screw hole rubber plug in a waterproof way; the shell is provided with a work indicator light which is electrically connected with the internal circuit.

Further, the control signal input is electrically connected to a processor and a power input circuit, the processor generating the control signal.

The utility model also provides a portable infrared LED therapeutic equipment, include as above portable infrared LED therapeutic instrument, still include function control circuit, with the internal circuit of therapeutic instrument connects to the work of control therapeutic instrument.

Further, the function control circuitry comprises one or more processors; the function control circuit also comprises a clock, an indicator light, a function key, a detection module and a programming interface which are connected with the processor; writing an execution program through the programming interface; the processor controls the clock to generate a use mode of the therapeutic apparatus; the function control circuit is arranged in an independent function controller, or is arranged in the therapeutic apparatus and integrated on the same or different circuit boards with the internal circuit; the processor is connected with a control signal circuit to generate a corresponding control signal and output the control signal to an internal circuit of the therapeutic apparatus.

In some embodiments, the indicator lights include a mode indicator light, an auxiliary function indicator light, a power/operating indicator light; the function keys comprise a MODE MODE key, an AUX auxiliary function selection key and a TREAT start key; the function keys and the indicator light are arranged on the human-computer interaction interface; the human-computer interaction interface is arranged on a panel of the function controller.

Furthermore, the function control circuit is connected with a power interface and used for accessing a power supply; the control signal circuit comprises a power input circuit, a high-low energy output control circuit and an auxiliary function control circuit; the high-low energy output control circuit, the auxiliary function output control circuit and the power input circuit are connected with the signal output end; the signal output end is connected with the control signal input of the internal circuit of the therapeutic apparatus, or the signal output end is connected with the control signal input of the internal circuit of the therapeutic apparatus through an external signal cable; the power input circuit generates power output and grounding signals, the processor is connected with the high-low energy output control circuit to generate high-low energy selection signals, and the processor is connected with the auxiliary function control circuit to generate auxiliary function selection signals; the power input circuit is connected with the processor after passing through the voltage overcurrent protection circuit; the power input circuit is connected with a voltage detection module, and the voltage detection module detects a voltage value input by the power input circuit through voltage division resistor sampling and a window comparator circuit; the power input circuit is connected with the power interface and used for being connected with a power supply.

In some embodiments, the control signal circuit and the signal output terminal are disposed in an IO circuit; the IO circuit also comprises the overvoltage and overcurrent protection circuit connected with the power input circuit; the IO circuit comprises the voltage detection module connected with the power input circuit; the function control circuit is arranged on the function control circuit board, and the IO circuit is arranged on the IO circuit board; the function control circuit board and the IO circuit board are arranged on two independent circuit boards or one circuit board; the power interface is arranged on the IO circuit board.

In some embodiments, the power input circuit inputs 12V dc power; the power input circuit inputs 12V direct current, and the voltage stabilizer supplies power to the processor after being converted into 5V by the voltage over-current protection circuit; the voltage detection module detects whether the input voltage of the power input circuit is 9-13V or not through voltage dividing resistor sampling and a window comparator circuit; the IO circuit board and the function control circuit board are arranged in the function controller; the portable infrared LED treatment equipment further comprises a power adapter, and the power adapter is connected with the power interface to be connected with an external power supply.

The utility model has the advantages that:

the utility model discloses portable infrared LED therapeutic instrument, small in size, can hand-carry, use nimble convenient simple, with low costs, treatment form is diversified, and contact temperature is controllable, and the patient experiences the preferred.

The present invention will be described in further detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic view of a portable infrared LED treatment device according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the function controller of the portable infrared LED therapeutic apparatus according to the embodiment of the present invention.

Fig. 3 is an exploded view of the function controller of the portable infrared LED therapeutic apparatus according to the embodiment of the present invention.

Fig. 4 is a schematic diagram of a functional controller MPU circuit according to an embodiment of the present invention.

Fig. 5 is a schematic diagram of an IO circuit of a functional controller according to an embodiment of the present invention.

Fig. 6 is a block diagram of a function control circuit according to an embodiment of the present invention.

Fig. 7 is a perspective view of the portable infrared LED therapeutic apparatus according to the embodiment of the present invention.

Fig. 8 is a reference diagram of the usage status of the portable infrared LED therapeutic apparatus according to the embodiment of the present invention, wherein the diagrams (a) - (e) are reference diagrams of different usage scenarios.

Fig. 9 is an exploded view of the portable infrared LED therapeutic apparatus according to the embodiment of the present invention.

Fig. 10 is a schematic diagram of a control circuit of the portable infrared LED therapeutic apparatus according to the embodiment of the present invention.

Fig. 11 is a schematic diagram of the LED circuit of the portable infrared LED therapeutic apparatus of the embodiment of the present invention.

Fig. 12 is a block diagram of a control circuit of the portable infrared LED therapeutic apparatus according to the embodiment of the present invention.

Fig. 13 is a block diagram of the LED circuit of the portable infrared LED therapeutic apparatus according to the embodiment of the present invention.

Fig. 14 is a schematic diagram of the automatic temperature adjusting PWM pulse width of the portable infrared LED therapeutic apparatus according to the embodiment of the present invention.

Fig. 15 is a graph of the level curve of the temperature sensor of the portable infrared LED therapeutic apparatus of the embodiment of the present invention.

Detailed Description

It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict, and the present invention is further described in detail with reference to the accompanying drawings and specific embodiments.

The utility model discloses a preferred embodiment provides an utilize medical device of infrared ray radiation energy treatment disease, the device has an irradiation window that comprises a plurality of 880 wavelength infrared emission LED, can carry out the accurate phototherapy of the small size of contact to the patient affected part, the device has automatic control by temperature change, excess temperature protection, the micro-vibration massage function, small in size, and convenient to carry, high durability and convenient use, can carry out the miniaturation to positions such as wrist, the sole, the waist, the vulva, the prostate, crissum, the infrared light irradiation and the thermotherapy of great radiant density, can alleviate muscle and soft tissue injury, tenosynovitis and fasciitis cause pain, and alleviate the postoperative pain, eliminate the inflammation swelling, accelerate wound healing.

The utility model discloses a portable infrared LED therapeutic instrument is a small and exquisite treatment device, for example, the treatment face can design an oval transparent output window of about 49 x 55mm, inside adopts tens miniwatt, the infrared LED of little encapsulation constitutes the array and realizes the even output of light energy, output window surface possesses approximate homothermal warm effect simultaneously, inside has automatic control by temperature change, the excess temperature protection, it is waterproof dustproof, the function of vibrations massage, make the patient obtain phototherapy, the thermotherapy, the multiple efficiency of massage, constitute complete equipment through cable junction external function controller and power adapter, low-power consumption has, easy to use, easy to maintain, the characteristics of easily carrying, be suitable for personal care and use. As shown in fig. 8, the portable infrared LED therapeutic apparatus of the present invention is suitable for phototherapy at various positions such as the wrist, the sole, the waist, and the temple. Can also be inserted into the hollow cushion for use.

Referring to fig. 1, the portable infrared LED therapeutic apparatus of the embodiment of the present invention mainly includes a power adapter 1, a function controller 2, and an infrared LED therapeutic apparatus 3. The power adapter 1 is used for accessing a power supply, and may be accessed to the mains supply, and in some embodiments, the power adapter may also be directly wired to a power supply. In this embodiment, the power adapter is an AC/DC power adapter, and an output plug of the power adapter is inserted into an internal plug port of the function controller, so as to supply power to the function controller 2 and the therapeutic apparatus 3. The function controller 2 is connected with the infrared LED therapeutic apparatus 3 through a cable 5. The cable 5 may have interfaces at two ends or one end, and is connected with the function controller 2 or the infrared LED therapeutic apparatus 3 through the interfaces, or one end is fixedly connected. In this embodiment, the cable 5 adopts a 4-core (not limited to 4-core) input cable, and connects the function controller 2 with the infrared LED therapeutic apparatus 3 to realize signal transmission (including control signals or current source signals). The shape of the infrared LED therapeutic apparatus 3 is similar to that of a mouse palm support, and the infrared LED therapeutic apparatus can generate photothermal infrared rays. After the power adapter 1, the function controller 2 and the infrared LED therapeutic apparatus 3 are connected, the power adapter is inserted into an alternating current (220V/50 Hz) socket, and the equipment is powered on, so that the function controller 2 can be operated and controlled to perform therapy 3.

As an example, the power adapter 1 may use a commercially available product, for example, it may be required to satisfy a maximum output of 12V/1A, an output voltage accuracy of less than or equal to + -3%, a load regulation rate of less than or equal to + -3%, and a ripple of less than 100 mVp-p.

Referring to fig. 2-6, the function controller 2 of the present embodiment is configured as a box-shaped structure externally connected to the infrared LED therapeutic apparatus 3, and includes a housing formed by fastening an upper housing 21 and a lower housing 24, a function control circuit board 22, an IO (input/output) circuit board 23, and a signal output end 24 installed inside the housing, and is further provided with a power interface (socket). The function control circuit board 22 and the IO circuit board 23 are connected by an inter-board connector to form the main board 20 inside the function controller, and in other embodiments, they may be configured to share one PCB. The signal output end 24 is arranged on or connected to the IO circuit board 23, and is used for being connected with the infrared LED therapeutic apparatus 3 to transmit signals (including current signals or control signals). The direct current is connected (or converted) through the power interface, and in the embodiment, the direct current of 12V is connected. The housing is provided with a human-computer interface 26, which may be a touch screen, a display screen, a key panel, etc. The display or operation is performed through the human-machine interface 26, in this embodiment, the indicator light 223 and the operation function key 224 are displayed through the human-machine interface 26, and the indicator light 223 and the function key 224 are disposed on the main board 20 (specifically, the function control circuit board 22) and displayed or operated through the human-machine interface 26. Wherein, the indicator lights 223 include a mode indicator light 2231, an auxiliary function indicator light 2232, a power/work indicator light 2233; function keys 224 include a MODE MODE key 2241, an AUX auxiliary function select key 2242, and a TREAT START key 2243. The indicating lamp is used for indicating corresponding working states, and the function keys are respectively used for selecting or setting corresponding functions. Referring to fig. 4, the function control circuit board 22 of the function controller is provided with 3 (not limited to 3) function keys and 5 (not limited to 5) indicator lamps.

Referring to fig. 4 and 6 in combination, the function control circuit of the function controller 2 includes: one or more processors 220 and a clock 222 coupled to processor 220, indicator lights 223 (including MODE indicator light 2231, auxiliary function indicator light 2232, power/on indicator light 2233), function keys 224 (MODE MODE key 2241, AUX auxiliary function select key 2242, TREAT Start key 2243), detection module 225, and programming interface 221. The processor 220 may be a microprocessor unit (MPU), built in firmware (firmware), which downloads firmware programs from external computers and programmers and is injected with the execution programs by the programming interface 221. The Microprocessor (MPU) and the clock 222 built in the function controller set the usage MODE of the infrared LED therapeutic apparatus 3 through the MODE key of the human-computer interface 26, for example:

mode I, low energy treatment for 25 minutes;

mode II, low energy treatment for 30 minutes;

mode III, high energy treatment for 20 minutes.

The corresponding function key is operated through the man-machine interaction interface 26, for example, the auxiliary function selection key 2242 is used for operating and selecting whether to start red light output or vibration massage; pressing TREAT START key 2243 starts treatment, and automatically closes the output after the set time is reached.

The function controller is also provided with an IO circuit connected with the function control circuit, and specifically comprises a power input circuit 235, and an overvoltage and overcurrent protection circuit 231, a voltage detection module 232, a high-low energy output control circuit 233, an auxiliary function control circuit 234, and a signal output end 236 which are electrically connected with the power input circuit 235. The high-low energy output control circuit 233, the auxiliary function output control circuit 234 and the power input circuit 235 are connected with the signal output end 236, and the signal output end 236 is connected with and controls the infrared LED therapeutic apparatus 3 through a 4-core cable. And a power input circuit 235 connected to the power interface for receiving power. In this embodiment, these modules are disposed on the IO circuit board 23. The power input circuit 235, the over-voltage and over-current protection circuit 231, the power voltage detection circuit 232, the high-low energy output control circuit 233 and the auxiliary function output control circuit 234 are electrically connected with the processor 220, and can be connected through an inter-board connector. The power input circuit 235 inputs 12V dc, and the voltage stabilizer is converted into 5V through the voltage over-current protection circuit 231 to supply power to the chip (processor 220); the voltage detection module 232 detects whether the 12V (power input circuit 235) input voltage is 9-13V through voltage dividing resistor sampling and a window comparator circuit. The 4 control signal output terminals 236 are respectively a 12V power supply output and a ground, a high and low energy selection signal output, and an auxiliary function selection signal output.

In a specific example, 12V direct current is input to the function controller 2 through the power input circuit 235, overcurrent protection, overvoltage protection and power voltage monitoring are built in the function controller 2 (the infrared therapeutic apparatus cannot be started when the voltage exceeds a set value), and the infrared LED therapeutic apparatus 3 is connected and controlled through a 4-core cable, wherein besides the positive and negative of the power supply, the function controller also comprises two control lines, one control line is used for high-low energy control, and the other control line is used for auxiliary function control.

It is understood that in other embodiments, the function controller 2 may be disposed on the infrared LED treatment apparatus 3, but the size of the infrared LED treatment apparatus 3 is increased.

Referring to fig. 7-13, the infrared LED therapeutic apparatus 3 of the present invention is a palm rest device, for example, a palm rest device of about 110 x 75 x 25mm, comprising a plastic (e.g., polycarbonate PC) housing, a control circuit 30 inside, a 4-wire cable 5 and a special plug. The treatment apparatus 3 has an elliptical transmission window 31 of, for example, 49 x 55, for outputting infrared light (880 nm) and red light (640 nm), and an operation indicator lamp 32 outside the window. A temperature sensor 33 is arranged on the circuit board inside the transmission window 31 and used for measuring the temperature of the shell window and the inside, and then the automatic temperature control is realized through an internal circuit. The temperature sensors on the LED circuit board are two, and the parallel combination of the temperature sensors is controlled through external signal cable signals, so that the switching of high-energy and low-energy output is realized. The over-temperature protection function is realized to 3 internal circuit of infrared LED therapeutic instrument, prevents that therapeutic instrument 3 from high temperature under the bad environment of heat dissipation. The infrared LED therapeutic apparatus 3 is provided with a vibrating motor and a timing driving circuit, and is controlled to start and stop through an external signal cable. The utility model discloses an infrared therapeutic instrument maintains simply, and is waterproof dustproof, can bear sweat dirt, and available water or neutral detergent wash.

The specific structure of infrared LED therapeutic instrument 3 includes: the upper and lower housings 33, 34 are engaged with each other to form a housing, and an LED circuit board 35 and a control circuit board 30 mounted inside the housing. The LED circuit board 35 and the control circuit board 30 are electrically connected by an inter-board connector or an electric wire, and the LED circuit board 35 may be fixed to the housing by screws 14. In this embodiment, the transmission window 31 is disposed on the upper housing 33, and the LED circuit board 35 is disposed in the transmission window 31. The control circuit board 30 is fixed with the LED circuit board 35 through a screw 8, and a gasket 9 is sleeved on the screw 8. Waterproof rubber strips 4 are clamped between the edges of the upper and lower shells. 5, the end of the control cable 5 can be provided with a plug to be connected with the control circuit board 30. And a heat-conducting silica gel pad 7 is also arranged in the shell to adjust the temperature balance in the shell. Can set up the louvre on the inferior valve, for example the circular region in the middle of be provided with honeycomb holes and be used for the heat dissipation to realize temperature balance in the casing, the regional periphery of trompil is equipped with waterproof rubber ring 10. The upper and lower housings 33, 34 may be further secured by screws 12 with waterproof gaskets. All the screw holes can be further provided with screw hole rubber plugs 13 for water resistance.

Referring to fig. 10 and 12, the control signal input and output of the infrared LED therapeutic apparatus 3, the over-temperature protection circuit 305, the motor driver 304 and the vibration motor 36 connected thereto. The control signal inputs include power input signals 303 and GND, an auxiliary function select signal 302, and a high-low energy select signal 301.

4 control signals are input from the function controller 2 through the 4-core cable 5 and a dedicated plug, wherein the power input signal 303 may be 12V dc; the auxiliary function select signal 302 is used to select whether to activate the vibration motor and/or the 12 visible red LEDs; h _ L is a high-low energy selection signal 301 for selecting either a high energy output or a low energy output of an infrared LED to drive the corresponding infrared LED and the adjustment of the temperature sensor. The over-temperature protection circuit 305 is used for over-temperature protection, and the 12V power supply input is turned off when the phototherapy temperature exceeds a set value through a temperature resistor NTC 37 and a hysteresis comparator on a circuit board. The motor drive 304 is a 3V vibration motor with a sawtooth wave generation and pulse width modulation circuit to provide intermittent drive at about 0.5 hz.

Referring to fig. 11 and 13, the LED circuit integrated on the LED circuit board 35 of the therapeutic apparatus includes: the infrared LED driving circuit comprises a control signal input circuit, an infrared LED driving signal circuit capable of automatically adjusting temperature and an infrared LED array. The control signal input circuit includes 4 pieces of control information (but not limited to 4 pieces), and specifically includes a power input signal 353(12V dc and GND), an AUX auxiliary function selection signal 352 (for selecting whether to activate 12 visible red LEDs or a vibration motor), and a high/low energy selection signal 351. The input signal correspondingly drives the corresponding LED array to work. Two temperature resistors NTC (thermistor or temperature sensor) 37 and a PWM (pulse width modulation) circuit 38 form an infrared LED driving signal with automatic temperature adjustment, are electrically connected with the infrared LED and select a corresponding light source to work. The power input signal 353 is electrically connected to the infrared LED for power supply. The infrared LEDs are arranged into LED arrays 40-42, for example, 11 × 7 infrared LED arrays, and the LED lamp beads are composed of small-power small packaging structures. According to the working mode selected by the temperature, the function controller 2 controls the corresponding LED light source to work, and particularly controls the infrared LED to output high energy or low energy according to the high-low energy selection signal. In this embodiment, the LED lamp further includes an auxiliary red LED 39, for example, the auxiliary red LED 39 is an arrangement of 12 auxiliary red LEDs connected in series/parallel, and whether to start the vibration motor or whether to start the 12 visible red LEDs to operate is selected by the auxiliary function.

Referring to fig. 14, the sawtooth wave generating circuit, i.e. the PWM pulse width modulation circuit 38, generates a sawtooth wave, which is connected to the negative input of the voltage comparator, and the level signal generated by the temperature resistance NTC circuit 37 is connected to the positive input of the voltage comparator, at a temperature of 1, the comparator outputs the PWM signal 1, the duty ratio is wide, the resistance value of the NTC resistor decreases with the increase of the temperature, the level signal decreases with the decrease of the level signal, and the duty ratio of the PWM signal output by the comparator decreases, as shown in the PWM signal 2 in the figure, so that a temperature negative feedback is formed, and the driving current of the infrared LED array changes with the temperature, the temperature increases, the current decreases, the temperature decreases, and the current increases, so that the irradiation surface of the therapeutic apparatus is approximately constant in temperature.

In conjunction with the comparison of FIG. 15, the LEVEL signal NTC _ LEVEL generated by the temperature sensor circuit 37 decreases as the temperature increases (0-85 deg.C in the graph); the H _ L signal in the circuit controls the basic resistance value (25 ℃ resistance value) of the NTC, when H high energy is selected, the NTC basic resistance value is 10K, the level change is a curve 1 in the graph, when L low energy is selected, the NTC basic resistance value is 10K and 22K which are connected in parallel, the level change is a curve 2 in the graph, and therefore the fact that when H high energy is selected, the duty ratio of a PWM signal is larger than that when L low energy is selected, the driving current of the infrared LED is larger, and therefore the generated temperature is higher.

In other embodiments, the control circuit board 30 and the LED circuit board 35 of the infrared LED therapeutic apparatus 3 can be disposed on the same PCB.

The infrared LED therapeutic apparatus 3 of the present invention can also use a built-in battery (e.g. a rechargeable battery) as a working power supply.

The constant temperature effect of the therapeutic apparatus can be realized under most conditions by the method, if the therapeutic apparatus is exposed in the air under the normal temperature environment, or the therapeutic surface is attached to the skin of a human body under the normal temperature, the temperature of the therapeutic apparatus is balanced by external heat exchange and temperature feedback adjustment, the temperature of the therapeutic surface is constant at 40-45 ℃ (H high energy temperature is about 2 ℃ higher than L low energy), the requirement of daily hot compress function can be met, but the temperature adjusting function can be out of work under extreme conditions: under the environment that heat cannot be dissipated, such as clothes and bedding, temperature feedback is disordered, and the temperature of the shell rises all the time, so that the temperature protection circuit is designed on the control board, and when the temperature of the internal control board exceeds 70 ℃ (the temperature of the shell exceeds 58 ℃) in the poor heat dissipation environment, the output of the infrared therapeutic apparatus is closed, and over-temperature protection is realized.

The utility model discloses portable infrared LED therapeutic instrument 2 has improved the problem of current phototherapy equipment, has designed a small and exquisite treatment device, compares with other product and equipment, has following advantage: the volume is small, the weight is light, the power consumption is low, the carrying and the use are convenient, the operation is simple, and the device is suitable for personal care; the phototherapy window is an oval window with 49 x 55mm, (not limited to) 77 infrared light emitting diodes with 880nm form an array to realize uniform output of light energy, and the infrared light emitting diodes have single wavelength, are safe and reliable, and have strong penetrating power; the surface of the output window has a constant-temperature warming effect, and the output window has the functions of automatic temperature control, over-temperature protection, water prevention, dust prevention and vibration massage, so that the patient can obtain multiple effects of phototherapy, hot compress and massage, and the patient feels comfortable.

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 a mechanical connection, and can also be an electrical connection or a connection capable of transmitting data; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and are intended to be within the scope of the application; the scope of the invention is defined by the appended claims and equivalents thereof.

Claims (15)

1. A portable infrared LED therapeutic apparatus comprises a shell and an internal circuit board; the internal circuit board is provided with an internal circuit; the method is characterized in that: the portable infrared LED therapeutic apparatus is palm-held equipment; a transmission window serving as an irradiation surface is arranged on the shell, and a plurality of infrared LEDs arranged on an internal circuit board are arranged in the transmission window of the shell; the internal circuit board controls the infrared LEDs to generate infrared light, and the infrared light is output through the transmission window to perform infrared photo-thermal treatment.

2. The apparatus according to claim 1, wherein:

the therapeutic apparatus is provided with a temperature sensor and is connected with an internal circuit, and the temperature sensor is arranged at the position of the transmission window and/or in the transmission window and is used for measuring the temperature of the transmission window and/or in the transmission window;

the temperature sensor realizes automatic temperature control through the internal circuit;

the internal circuit is provided with an over-temperature protection circuit, and when the temperature in the transmission window and/or the transmission window exceeds a set value, the internal circuit controls to close the power supply input;

the internal circuit controls the infrared LEDs to select high energy or low energy to output;

the internal circuit is provided with a motor driving circuit which is connected with and drives the vibration motor to realize vibration massage;

the internal circuit board is also provided with a plurality of red LEDs; the plurality of red light LEDs form an auxiliary red light LED array and are positioned inside the transmission window of the shell.

3. The apparatus according to claim 2, wherein:

the internal circuit comprises an infrared LED driving signal circuit which is connected with and drives the plurality of infrared LEDs; the infrared LED driving signal circuit comprises the temperature sensor and a PWM (pulse width modulation) circuit, and realizes automatic temperature control so that the irradiation surface of the therapeutic apparatus achieves the effect of approximate constant temperature;

the two temperature sensors are controlled by signals to be combined in parallel, so that the switching of high-energy and low-energy output is realized;

the over-temperature protection circuit comprises the temperature sensor and a hysteresis comparator, and the power supply input is turned off when the temperature exceeds a set value through the temperature sensor and the hysteresis comparator;

the temperature sensor comprises two temperature resistors NTC;

the motor driving circuit includes a sawtooth wave generating and pulse width modulating circuit to provide a predetermined voltage and intermittent driving of the vibration motor.

4. The apparatus according to claim 3, wherein:

the PWM pulse width modulation circuit generates sawtooth waves and is connected with the negative input of the voltage comparator, and the level signal generated by the temperature resistance NTC circuit is connected with the positive input of the voltage comparator;

along with the temperature rise, the resistance value of the NTC resistor is reduced, the level signal is reduced, the duty ratio of the PWM signal output by the comparator is reduced, and therefore temperature negative feedback is achieved;

the driving current of the infrared LED driving signal circuit changes along with the temperature: the temperature is increased, the current is reduced, the temperature is reduced, and the current is increased, so that the irradiation surface of the therapeutic apparatus achieves the effect of approximate constant temperature;

as the temperature increases, the level of the NTC resistance decreases;

when the internal circuit controls the infrared LEDs to select high energy output, the NTC basic resistance value is 10K; when the internal circuit controls the infrared LEDs to select low energy output, the basic resistance value of the NTC resistor is 10K and 22K in parallel; when high energy output is selected, the duty ratio of the PWM signal is larger than that of the low energy output, the driving current of the infrared LED driving signal circuit is also larger, and therefore the generated temperature is also higher;

the working temperature of the irradiation surface of the therapeutic apparatus is constant at 40-45 ℃.

5. The apparatus according to claim 2, wherein:

the infrared LEDs form an array to realize uniform output of light energy; the infrared LEDs are dozens of infrared LEDs with small power and small encapsulation;

the power supply input of the therapeutic apparatus is 12V direct current;

the transmission window is an elliptical window with the size of 49 x 55 mm;

the therapeutic apparatus is a palm rest type apparatus with the size of 110 x 75 x 25 mm;

the wavelength of the red light LED is 640 nm; the wavelength of the infrared LED is 880 nm;

the appearance of the therapeutic instrument is a mouse palm support;

a heat-conducting silica gel pad is also arranged in the shell to adjust the temperature balance of the shell;

the honeycomb holes are further formed in the shell and used for heat dissipation, so that temperature balance in the shell is achieved.

6. An apparatus according to any one of claims 1-5, wherein:

the internal circuit includes a control signal input; the control signal input comprises a power supply input signal, GND, an auxiliary function selection signal and a high-low energy selection signal;

the power input signal is used for inputting power to the therapeutic apparatus; the power supply input signal is connected with the infrared LEDs and used for inputting direct current;

the auxiliary function selection signal is connected with the motor driving circuit and/or the plurality of red light LEDs and is used for selecting whether to start the vibration motor and the red light LEDs; the power supply input signal is electrically connected with the red LED;

the high-low energy selection signal is connected with the infrared LEDs to realize high-energy or low-energy infrared output;

the internal circuit comprises an LED circuit and a control circuit which are electrically connected with each other; the LED circuit is integrated on the LED circuit board, and the control circuit is integrated on the control circuit board; the LED circuit board and the control circuit board are two mutually electrically connected circuit boards or are integrated on the same circuit board; the LED circuit board and the control circuit board form an internal circuit board which is arranged inside the shell.

7. The apparatus according to claim 6, wherein:

the control circuit comprises a control signal input and control signal output and an over-temperature protection circuit, and also comprises the motor driving circuit and a vibration motor connected with the motor driving circuit;

the LED circuit includes: the infrared LED driving circuit comprises a control signal input circuit, an infrared LED driving signal circuit and a plurality of infrared LEDs;

the control signal input of the LED circuit is connected with the control signal output of the control circuit;

the LED circuit further comprises the plurality of red LEDs;

the control signal input of the internal circuit comprises a control signal input of the control circuit and a control signal input of the LED circuit connected with the control signal output;

the control signal input of the internal circuit is connected with an external signal cable.

8. The apparatus according to claim 6, wherein:

the shell is formed by buckling an upper shell and a lower shell;

a waterproof adhesive tape is arranged at the edge between the upper shell and the lower shell; the upper and lower shells, the LED circuit board and the control circuit board are further fastened by screws; a waterproof gasket is arranged on the screw, and the screw hole is sealed by a screw hole rubber plug in a waterproof way;

the shell is provided with a work indicator light which is electrically connected with the internal circuit.

9. The apparatus according to claim 6, wherein: the control signal input is electrically connected with the processor and the power input circuit, and the processor generates the control signal.

10. A portable infrared LED treatment device, its characterized in that: the portable infrared LED therapeutic apparatus of any one of claims 1-9, further comprising a function control circuit connected to an internal circuit of the therapeutic apparatus to control the operation of the therapeutic apparatus.

11. The treatment apparatus of claim 10, wherein:

the function control circuitry comprises one or more processors;

the function control circuit also comprises a clock, an indicator light, a function key, a detection module and a programming interface which are connected with the processor;

writing an execution program through the programming interface;

the processor controls the clock to generate a use mode of the therapeutic apparatus;

the function control circuit is arranged in an independent function controller, or is arranged in the therapeutic apparatus and integrated on the same or different circuit boards with the internal circuit;

the processor is connected with a control signal circuit to generate a corresponding control signal and output the control signal to an internal circuit of the therapeutic apparatus.

12. The treatment apparatus of claim 11, wherein:

the indicating lamps comprise a mode indicating lamp, an auxiliary function indicating lamp and a power supply/working indicating lamp;

the function keys comprise a MODE MODE key, an AUX auxiliary function selection key and a TREAT start key;

the function keys and the indicator light are arranged on the human-computer interaction interface;

the human-computer interaction interface is arranged on a panel of the function controller.

13. The treatment apparatus of claim 11, wherein:

the function control circuit is connected with a power interface and is used for accessing a power supply;

the control signal circuit comprises a power input circuit, a high-low energy output control circuit and an auxiliary function control circuit; the high-low energy output control circuit, the auxiliary function output control circuit and the power input circuit are connected with the signal output end; the signal output end is connected with the control signal input of the internal circuit of the therapeutic apparatus, or the signal output end is connected with the control signal input of the internal circuit of the therapeutic apparatus through an external signal cable;

the power input circuit generates power output and grounding signals, the processor is connected with the high-low energy output control circuit to generate high-low energy selection signals, and the processor is connected with the auxiliary function control circuit to generate auxiliary function selection signals;

the power input circuit is connected with the processor after passing through the voltage overcurrent protection circuit;

the power input circuit is connected with a voltage detection module, and the voltage detection module detects a voltage value input by the power input circuit through voltage division resistor sampling and a window comparator circuit;

the power input circuit is connected with the power interface and used for being connected with a power supply.

14. The treatment apparatus of claim 13, wherein:

the control signal circuit and the signal output end are arranged on the IO circuit;

the IO circuit also comprises the overvoltage and overcurrent protection circuit connected with the power input circuit; the IO circuit comprises the voltage detection module connected with the power input circuit;

the function control circuit is arranged on the function control circuit board, and the IO circuit is arranged on the IO circuit board; the function control circuit board and the IO circuit board are arranged on two independent circuit boards or one circuit board;

the power interface is arranged on the IO circuit board.

15. The treatment apparatus of claim 14, wherein:

the power supply input circuit inputs 12V direct current;

the power input circuit inputs 12V direct current, and the voltage stabilizer supplies power to the processor after being converted into 5V by the voltage over-current protection circuit; the voltage detection module detects whether the input voltage of the power input circuit is 9-13V or not through voltage dividing resistor sampling and a window comparator circuit;

the IO circuit board and the function control circuit board are arranged in the function controller;

the portable infrared LED treatment equipment further comprises a power adapter, and the power adapter is connected with the power interface to be connected with an external power supply.

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