CN113057791A - System control circuit for medical cooling - Google Patents
System control circuit for medical cooling Download PDFInfo
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- CN113057791A CN113057791A CN202110305423.4A CN202110305423A CN113057791A CN 113057791 A CN113057791 A CN 113057791A CN 202110305423 A CN202110305423 A CN 202110305423A CN 113057791 A CN113057791 A CN 113057791A
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- 238000001816 cooling Methods 0.000 title claims abstract description 22
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 62
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 60
- 239000004065 semiconductor Substances 0.000 claims abstract description 26
- 239000003990 capacitor Substances 0.000 claims description 54
- 238000005057 refrigeration Methods 0.000 claims description 14
- 238000005286 illumination Methods 0.000 description 4
- 206010037660 Pyrexia Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/0085—Devices for generating hot or cold treatment fluids
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to the field of medical treatment, in particular to a system control circuit for medical cooling. The technical problem to be solved is as follows: provides a system control circuit for medical cooling, which is convenient to use. The technical scheme of the invention is as follows: a system control circuit for medical cooling comprises a USB charging interface, a lithium battery charging management circuit, a lithium battery power supply unit, a booster circuit and the like; the USB charging interface is connected with the input end of the lithium battery charging management circuit, and the input end of the lithium battery charging management circuit is connected with the output end of the booster circuit. According to the invention, the patient can be cooled through the fan and the semiconductor refrigerating sheet, a nurse only needs to press the switch, and the gears of the fan and the semiconductor refrigerating sheet can be adjusted so as to be suitable for patients in different conditions.
Description
Technical Field
The invention relates to the field of medical treatment, in particular to a system control circuit for medical cooling.
Background
In the hospital, the symptom of fever can appear in some diseases, this type of patient need be in hospital and treat, then cool down patient, make its fever, adopt the ice bag to cool down patient at present mainly, when the ice bag is used for a long time, its temperature can rise, can not reach the service standard, need change, when weather is more hot, need often change the ice bag, unusual trouble, consequently, design a convenient to use's system control circuit for medical treatment cooling has certain positive meaning.
Disclosure of Invention
In order to overcome the defect that the ice bag needs to be frequently replaced when the weather is hot, and the problem is solved by the technical scheme that: provides a system control circuit for medical cooling, which is convenient to use.
The technical scheme of the invention is as follows: a system control circuit for medical cooling comprises a USB charging interface, a lithium battery charging management circuit, a lithium battery power supply unit, a booster circuit, a gear indicator lamp set, a second control circuit, a fan, a semiconductor refrigeration sheet, a first control circuit and a first control switch, wherein the USB charging interface is connected with the input end of the lithium battery charging management circuit, the input end of the lithium battery charging management circuit is connected with the output end of the booster circuit, the output end of the lithium battery charging management circuit is connected with the gear indicator lamp set, the output end of the lithium battery charging management circuit is connected with the input end of the second control circuit, the output end of the second control circuit is connected with the fan, the output end of the lithium battery charging management circuit is connected with the input end of the first control circuit, and the output end of the first control circuit is connected with the semiconductor refrigeration sheet, the input end of the lithium battery charging management circuit is connected with the first control switch, and the lithium battery power supply unit supplies power to the booster circuit, the gear indicator lamp set, the second control circuit, the fan, the semiconductor refrigeration piece, the first control circuit and the first control switch.
As a preferred technical scheme of the invention, the lithium battery charging management circuit further comprises a double-color charging indicator lamp, the double-color charging indicator lamp is connected with the output end of the lithium battery charging management circuit, and the lithium battery power supply unit supplies power to the double-color charging indicator lamp.
The lithium battery charging management circuit comprises a lithium battery charging management circuit, a second control switch, a flashlight and a lithium battery power supply unit, wherein the output end of the lithium battery charging management circuit is connected with the flashlight, the input end of the lithium battery charging management circuit is connected with the second control switch, and the lithium battery power supply unit supplies power to the flashlight and the second control switch.
As a preferred technical solution of the present invention, the lithium battery charging management circuit includes an integrated power management circuit HM5939-U2, a tact switch SW1, a tact switch SW2, a resistor R3, a resistor R4, a capacitor C7, a light emitting diode VD1 and a light emitting diode VD2, a 10 pin of the integrated power management circuit HM5939-U2 is grounded, a 7 pin of the integrated power management circuit HM5939-U2 is connected in series with the tact switch SW1 to ground, an 8 pin of the integrated power management circuit HM5939-U2 is connected in series with the tact switch SW2 to ground, a 6 pin of the integrated power management circuit HM5939-U2 is connected in series with the resistor R4 and the anode of the light emitting diode VD3, a cathode of the light emitting diode VD3 is grounded, a 3 pin of the integrated power management circuit HM5939-U2 is connected in series with the resistor R3 and the anode of the light emitting diode VD2, a cathode of the light emitting diode VD2 is grounded, a HM 5956 of the integrated power management circuit HM 5939-U5927 is connected in series with the intermediate resistor R8653 and the light Connected, the 3-pin series capacitor C7 of the integrated power management circuit HM5939-U2 is grounded.
The boost circuit comprises a battery BT1, a capacitor C4, a capacitor C5, a capacitor C6 and an inductor L1, wherein a pin 15 of the integrated power management circuit HM5939-U2 is connected with the inductor L1 and the battery BT1 in series, the other end of the battery BT1 is grounded, a pin 13 of the integrated power management circuit HM5939-U2 is connected with the capacitor C4 in parallel with the pin 15 thereof, and the capacitor C5 and the capacitor C6 are both connected with a pin 13 of the integrated power management circuit HM 5939-U2.
As a preferred technical solution of the present invention, the gear indicator light set includes a resistor R5, a resistor R6, a resistor R7, a light emitting diode VD4, a light emitting diode VD5, and a light emitting diode VD6, a 9-pin series resistor R5 and a light emitting diode VD4 of the integrated power management circuit HM5939-U2, a cathode of the light emitting diode VD4 is grounded, an 11-pin series resistor R6 and a light emitting diode VD5 of the integrated power management circuit HM5939-U2 are grounded, a cathode of the light emitting diode VD5 is grounded, a 12-pin series resistor R7 and a light emitting diode VD6 of the integrated power management circuit HM5939-U2 are grounded, and a cathode of the light emitting diode VD6 is grounded.
As a preferred technical solution of the present invention, the second control circuit includes a diode D1, a diode D2, a capacitor C1, a capacitor C2, a capacitor C3 and an electrolytic capacitor EC1, the diode D2 is connected in parallel with the 16 pin of the pin 1 of the integrated power management circuit HM5939-U2, the capacitor C1 and the electrolytic capacitor EC1 are connected in parallel with the pin 1 of the integrated power management circuit HM5939-U2, the 2 pin of the integrated power management circuit HM5939-U2 is connected to a fan, the 3 pin of the integrated power management circuit HM5939-U2 is connected to the anode of the diode D1, the cathode of the diode D1 is connected to the fan, one ends of the capacitor C2 and the capacitor C3 are grounded, and the other ends of the capacitor C2 and the capacitor C3 are connected to the pin 1 of the integrated power management circuit HM 5939-U2.
As a preferable technical solution of the present invention, the first control circuit includes a transistor Q1, a resistor R1, and a resistor R2, the 2-pin series resistor R1 of the integrated power management circuit HM5939-U2 and the base of the transistor Q1, the base of the transistor Q1 is grounded in series with the resistor R2, the collector of the transistor Q1 is grounded, and the emitter of the transistor Q1 is connected to the semiconductor cooling plate.
As a preferred embodiment of the present invention, the integrated power management circuit has a model number HM 5939.
As a preferred embodiment of the present invention, the type of the transistor Q1 is 2SB 1316.
Has the advantages that:
1. can cool down patient through fan and semiconductor refrigeration piece, the nurse only need press the switch can, can adjust the gear of fan and semiconductor refrigeration piece moreover to be applicable to the patient of different situation.
2. The double-color charging indicating lamp can be convenient for nurses to judge the electric quantity of the lithium battery power supply unit.
3. The flashlight can provide illumination, and is convenient for nurses to work.
Drawings
FIG. 1 is a block diagram of the circuit of the present invention.
Fig. 2 is a schematic circuit diagram of the present invention.
Wherein: the intelligent charging system comprises a USB charging interface, a 2-lithium battery charging management circuit, a 3-lithium battery power supply unit, a 4-booster circuit, a 5-gear indicator lamp set, a 6-double-color charging indicator lamp, a 7-second control circuit, an 8-fan, a 9-semiconductor refrigerating sheet, a 10-first control circuit, a 11-first control switch, a 12-flashlight and a 13-second control switch.
Detailed Description
The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.
Example 1
A system control circuit for medical cooling is disclosed, as shown in figure 1, and comprises a USB charging interface 1, a lithium battery charging management circuit 2, a lithium battery power supply unit 3, a booster circuit 4, a gear indicator lamp group 5, a second control circuit 7, a fan 8, a semiconductor refrigeration sheet 9, a first control circuit 10 and a first control switch 11, wherein the USB charging interface 1 is connected with the input end of the lithium battery charging management circuit 2, the input end of the lithium battery charging management circuit 2 is connected with the output end of the booster circuit 4, the output end of the lithium battery charging management circuit 2 is connected with the gear indicator lamp group 5, the output end of the lithium battery charging management circuit 2 is connected with the input end of the second control circuit 7, the output end of the second control circuit 7 is connected with the fan 8, and the output end of the lithium battery charging management circuit 2 is connected with the input end of the first control circuit 10, the output end of the first control circuit 10 is connected with the semiconductor refrigeration piece 9, the input end of the lithium battery charging management circuit 2 is connected with the first control switch 11, and the lithium battery power supply unit 3 supplies power to the booster circuit 4, the gear indicator lamp set 5, the second control circuit 7, the fan 8, the semiconductor refrigeration piece 9, the first control circuit 10 and the first control switch 11.
The nurse can charge 1 external power supply of USB interface, charge lithium battery power supply unit 3 through lithium battery charging management circuit 2, press first control switch 11, the work of second control circuit 7 control fan 8, the work of first control circuit 10 control semiconductor refrigeration piece 9, cool down, fan 8 and semiconductor refrigeration piece 9 are the first grade, press first control switch 11 the second time, adjust into the second grade, press first control switch 11 the third time, adjust into the third grade, gear indicator banks 5 shows the gear of fan 8 and semiconductor refrigeration piece 9, press first control switch 11 the fourth time, fan 8 and semiconductor refrigeration piece 9 close.
Example 2
On the basis of the embodiment 1, as shown in fig. 1, the lithium battery charging management circuit further comprises a two-color charging indicator lamp 6, the two-color charging indicator lamp 6 is connected with the output end of the lithium battery charging management circuit 2, and the lithium battery power supply unit 3 supplies power to the two-color charging indicator lamp 6.
When charging lithium battery supply unit 3, the red light on double-colored charge indicator 6 lights, and after lithium battery supply unit 3 was full of the electricity, the green light on double-colored charge indicator 6 lights, makes things convenient for the nurse to judge lithium battery supply unit 3's electric quantity.
Still including flashlight 12 and second control switch 13, lithium battery charging management circuit 2's output and flashlight 12 are connected, lithium battery charging management circuit 2's input and second control switch 13 are connected, lithium battery power supply unit 3 is flashlight 12 and the power supply of second control switch 13.
The nurse can press second control switch 13, flashlight 12 lights, and flashlight 12 can provide the illumination, makes things convenient for nurse's work, presses second control switch 13 once more, and flashlight 12 closes.
Example 3
A medical cooling system control circuit is disclosed, as shown in FIG. 2, the lithium battery charging management circuit 2 includes an integrated power management circuit HM5939-U2, a tact switch SW1, a tact switch SW2, a resistor R3, a resistor R4, a capacitor C7, a light emitting diode VD1 and a light emitting diode VD2, the 10 pin of the integrated power management circuit HM5939-U2 is grounded, the 7 pin of the integrated power management circuit HM5939-U2 is grounded in series with the tact switch SW1, the 8 pin of the integrated power management circuit HM5939-U2 is grounded in series with the tact switch SW2, the 6 pin of the integrated power management circuit HM5939-U2 is grounded in series with the resistor R4 and the anode of the light emitting diode VD3, the cathode of the light emitting diode VD3 is grounded, the 3 pin of the integrated power management circuit HM5939-U2 is connected with the resistor R3 and the anode of the light emitting diode VD2, and the cathode of the light emitting diode VD2 is grounded, the 5-pin of the integrated power management circuit HM5939-U2 is connected with the middle point of the series connection of the resistor R3 and the light emitting diode VD2, and the 3-pin series capacitor C7 of the integrated power management circuit HM5939-U2 is grounded.
The booster circuit 4 comprises a battery BT1, a capacitor C4, a capacitor C5, a capacitor C6 and an inductor L1, wherein a 15 pin of the integrated power management circuit HM5939-U2 is connected with the inductor L1 and the battery BT1 in series, the other end of the battery BT1 is grounded, a 13 pin of the integrated power management circuit HM5939-U2 is connected with the 15 pin of the integrated power management circuit HM 5939-U3624 in parallel with the capacitor C4, and the capacitor C5 and the capacitor C6 are both connected with a 13 pin of the integrated power management circuit HM 5939-U2.
The gear indicator lamp group 5 comprises a resistor R5, a resistor R6, a resistor R7, a light emitting diode VD4, a light emitting diode VD5 and a light emitting diode VD6, a 9-pin series resistor R5 and a light emitting diode VD4 of the integrated power management circuit HM5939-U2, a cathode of the light emitting diode VD4 is grounded, an 11-pin series resistor R6 and a light emitting diode VD5 of the integrated power management circuit HM5939-U2 are grounded, a cathode of the light emitting diode VD5 is grounded, a 12-pin series resistor R7 and a light emitting diode VD6 of the integrated power management circuit HM5939-U2 are grounded, and a cathode of the light emitting diode VD6 is grounded.
The second control circuit 7 comprises a diode D1, a diode D2, a capacitor C1, a capacitor C2, a capacitor C3 and an electrolytic capacitor EC1, the diode D2 is connected in parallel with the pin 1 of the integrated power management circuit HM5939-U2, the diode D2 is connected in parallel with the pin 16 of the integrated power management circuit HM5939-U2, the capacitor C1 and the electrolytic capacitor EC1 are connected in parallel with the pin 1 of the integrated power management circuit HM5939-U2, the pin 3 of the integrated power management circuit HM5939-U2 is connected with the anode of the diode D1, the cathode of the diode D1 is connected with the fan 8, one ends of the capacitor C2 and the capacitor C3 are grounded, and the other ends of the capacitor C2 and the capacitor C3 are connected with the pin 1 of the integrated power management circuit HM 5939-U2.
The first control circuit 10 comprises a triode Q1, a resistor R1 and a resistor R2, a 2-pin series resistor R1 of the integrated power management circuit HM5939-U2 and a base of a triode Q1, the base of the triode Q1 is grounded in series resistor R2, a collector of the triode Q1 is grounded, and an emitter of the triode Q1 is connected with the semiconductor refrigerating sheet 9.
The nurse can connect the USB charging interface 1 with an external power supply, the battery BT1 is charged through the integrated power management circuit HM5939-U2, the light-emitting diode VD1 is lighted in red, the light-emitting diode VD2 is not lighted, after the charging is finished, the light-emitting diode VD1 is extinguished, the light-emitting diode VD2 is lighted in green, the battery BT1 supplies power to the fan 8 and the semiconductor chilling plate 9, the nurse presses the tact switch SW1, the pin 2 of the integrated power management circuit HM5939-U2 outputs low level, the fan 8 starts working, the triode Q1 is conducted, the semiconductor chilling plate 9 starts working and cools down, the fan 8 and the semiconductor chilling plate 9 are in first gear, the voltage is 4V, the light-emitting diode VD4 lights, if the gear positions of the fan 8 and the semiconductor chilling plate 9 need to be adjusted, the nurse presses the tact switch SW1 for the second time, the voltage reaches 6.5V, the gear reaches the second gear, the light-emitting diode VD6 lights, the light-emitting switch SW1, the voltage reaches 9V, the gear reaches three, the light-emitting diode VD7 lights, the tact switch SW1 is pressed for the fourth time, the fan 8 and the semiconductor refrigerating sheet 9 are turned off, if illumination is needed, a nurse can press the tact switch SW2, the light-emitting diode VD3 lights up to provide illumination, the tact switch SW2 is pressed again, and the light-emitting diode VD3 is turned off.
While the disclosure has been described with respect to a limited number of embodiments, those skilled in the art, having benefit of this disclosure, will appreciate that various other embodiments can be devised which do not depart from the scope of the invention as disclosed herein. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (10)
1. The utility model provides a system control circuit is used in medical treatment cooling which characterized in that: the intelligent control device comprises a USB charging interface (1), a lithium battery charging management circuit (2), a lithium battery power supply unit (3), a booster circuit (4), a gear indicator lamp group (5), a second control circuit (7), a fan (8), a semiconductor refrigerating sheet (9), a first control circuit (10) and a first control switch (11), wherein the USB charging interface (1) is connected with the input end of the lithium battery charging management circuit (2), the input end of the lithium battery charging management circuit (2) is connected with the output end of the booster circuit (4), the output end of the lithium battery charging management circuit (2) is connected with the gear indicator lamp group (5), the output end of the lithium battery charging management circuit (2) is connected with the input end of the second control circuit (7), the output end of the second control circuit (7) is connected with the fan (8), the output end of the lithium battery charging management circuit (2) is connected with the input end of the first control circuit (10), the output and the semiconductor refrigeration piece (9) of first control circuit (10) are connected, the input and the first control switch (11) of lithium battery charging management circuit (2) are connected, lithium battery power supply unit (3) is for boost circuit (4), gear pilot lamp group (5), second control circuit (7), fan (8), semiconductor refrigeration piece (9), first control circuit (10) and first control switch (11) power supply.
2. The system control circuit for medical cooling according to claim 1, wherein: still including double-colored charge indicator (6), double-colored charge indicator (6) and the output of lithium battery charging management circuit (2) are connected, lithium battery power supply unit (3) are the power supply of double-colored charge indicator (6).
3. The system control circuit for medical cooling according to claim 2, wherein: still including flashlight (12) and second control switch (13), the output and flashlight (12) of lithium battery charging management circuit (2) are connected, the input and second control switch (13) of lithium battery charging management circuit (2) are connected, lithium battery power supply unit (3) are flashlight (12) and second control switch (13) power supply.
4. The system control circuit for medical cooling according to claim 3, wherein: the lithium battery charging management circuit (2) comprises an integrated power supply management circuit HM5939-U2, a tact switch SW1, a tact switch SW2, a resistor R3, a resistor R4, a capacitor C7, a light emitting diode VD1 and a light emitting diode VD2, wherein the 10 pin of the integrated power supply management circuit HM5939-U2 is grounded, the 7 pin of the integrated power supply management circuit HM5939-U2 is connected in series with the tact switch SW1 to be grounded, the 8 pin of the integrated power supply management circuit HM5939-U2 is connected in series with the tact switch SW2 to be grounded, the 6 pin of the integrated power supply management circuit HM5939-U2 is connected in series with the R4 and the anode of the light emitting diode VD3, the cathode of the light emitting diode VD3 is grounded, the 3 pin of the integrated power supply management circuit HM5939-U2 is connected in series with the resistor R3 and the anode of the light emitting diode VD2, the cathode of the light emitting diode VD2 is grounded, the cathode of the integrated power supply management circuit HM 5939-U56 is connected in series with the middle pin of the light, the 3-pin series capacitor C7 of the integrated power management circuit HM5939-U2 is connected to ground.
5. The system control circuit for medical cooling according to claim 4, wherein: the boosting circuit (4) comprises a battery BT1, a capacitor C4, a capacitor C5, a capacitor C6 and an inductor L1, wherein a 15 pin of the integrated power management circuit HM5939-U2 is connected with the inductor L1 and the battery BT1 in series, the other end of the battery BT1 is grounded, a 13 pin of the integrated power management circuit HM5939-U2 is connected with the 15 pin of the integrated power management circuit in parallel with the capacitor C4, and the capacitor C5 and the capacitor C6 are both connected with a 13 pin of the integrated power management circuit HM 5939-U2.
6. The system control circuit for medical cooling according to claim 5, wherein: the gear indicator lamp group (5) comprises a resistor R5, a resistor R6, a resistor R7, a light emitting diode VD4, a light emitting diode VD5 and a light emitting diode VD6, a 9-pin series resistor R5 and a light emitting diode VD4 of an integrated power management circuit HM5939-U2, a cathode of the light emitting diode VD4 is grounded, an 11-pin series resistor R6 and a light emitting diode VD5 of the integrated power management circuit HM5939-U2 are grounded, a cathode of the light emitting diode VD5 is grounded, a 12-pin series resistor R7 and a light emitting diode VD6 of the integrated power management circuit HM5939-U2 are grounded, and a cathode of the light emitting diode VD6 is grounded.
7. The system control circuit for medical cooling according to claim 6, wherein: the second control circuit (7) comprises a diode D1, a diode D2, a capacitor C1, a capacitor C2, a capacitor C3 and an electrolytic capacitor EC1, a diode D2 is connected in parallel with a pin 1 of the integrated power management circuit HM5939-U2, a diode D2 is connected in parallel with a pin 2 of the integrated power management circuit HM5939-U2, a capacitor C1 and an electrolytic capacitor EC1 are connected in parallel with a pin 2 of the integrated power management circuit HM5939-U2, a pin 3 of the integrated power management circuit HM5939-U2 is connected with an anode of the diode D1, a cathode of the diode D1 is connected with the fan (8), one ends of the capacitor C2 and the capacitor C3 are grounded, and the other ends of the capacitor C2 and the capacitor C3 are connected with a pin 1 of the integrated power management circuit HM 5939-U2.
8. The system control circuit for medical cooling according to claim 7, wherein: the first control circuit (10) comprises a triode Q1, a resistor R1 and a resistor R2, a 2-pin series resistor R1 of the integrated power management circuit HM5939-U2 and a base electrode of the triode Q1, a base electrode series resistor R2 of the triode Q1 is grounded, a collector electrode of the triode Q1 is grounded, and an emitting electrode of the triode Q1 is connected with the semiconductor refrigerating sheet (9).
9. The system control circuit for medical cooling according to claim 4, wherein: the integrated power management circuit is of type HM 5939.
10. The system control circuit for medical cooling according to claim 8, wherein: the model of the triode Q1 is 2SB 1316.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110305423.4A CN113057791A (en) | 2021-03-23 | 2021-03-23 | System control circuit for medical cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110305423.4A CN113057791A (en) | 2021-03-23 | 2021-03-23 | System control circuit for medical cooling |
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| CN113057791A true CN113057791A (en) | 2021-07-02 |
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|---|---|---|---|
| CN202110305423.4A Pending CN113057791A (en) | 2021-03-23 | 2021-03-23 | System control circuit for medical cooling |
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2021
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Application publication date: 20210702 |