CN202961526U - Semiconductor cooling device of transcranial magnetic stimulation coil - Google Patents
Semiconductor cooling device of transcranial magnetic stimulation coil Download PDFInfo
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- CN202961526U CN202961526U CN 201220703987 CN201220703987U CN202961526U CN 202961526 U CN202961526 U CN 202961526U CN 201220703987 CN201220703987 CN 201220703987 CN 201220703987 U CN201220703987 U CN 201220703987U CN 202961526 U CN202961526 U CN 202961526U
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Abstract
The utility model discloses a semiconductor cooling device of a transcranial magnetic stimulation coil, which is arranged on a stimulation coil structure. The semiconductor cooling device comprises a semiconductor chilling plate and an external radiator, wherein the semiconductor chilling plate comprises a cold end and a hot end serially connected with the cold end, and the cold end and the hot end are respectively arranged inside and outside a shell; the cold end faces towards the stimulation coil end which needs to be chilled, and is contacted with a cooling liquid in the stimulation coil structure through wing-shaped radiating fins; and the hot end is closely connected with the external radiator; the cold end absorbs heat from the stimulation coil end, and transmits the heat to the external radiator through the hot end; and the a cooling fan compulsively emits heat outwards. The semiconductor cooling device of transcranial magnetic stimulation coil, based on the semiconductor chilling plate with heat and electricity energy conversion feature, actively absorbs lot of heat generated during work of the stimulation coil, thus, the heat dissipation effect of the stimulation coil is improved, and the semiconductor cooling device is small in volume, light in weight, pollution-free, low in noise, low in cost of construction, convenient for temperature control, and so on, so that the working time of the stimulation coil is prolonged, and the aim of long-term stimulation is realized.
Description
Technical field
This utility model relates to the transcranial magnetic stimulation technical field, relates in particular to a kind of semiconductor cooling device of transcranial magnetic stimulation coil.
Background technology
Transcranial magnetic stimulation (Transcranial magnetic stimulation, TMS) be that a kind of pulsed magnetic field is through skull, bring out faradic current to corticocerebral a kind of stimulating method at intracranial, have painless, not damaged, the advantage such as easy and simple to handle, safe and reliable, obtain wide clinical application.So-called " through cranium " is that the explanation magnetic signal can see through skull undampedly and stimulate to cerebral cortex, is not limited to the stimulation of intracranial nerve in practical application, and peripheral nervous muscle can stimulate equally, so be referred to as " magnetic stimulation ".
It is a kind of physical stimulation form that magnetic stimulates, it is the changing currents with time that utilizes in coil, become pulsed magnetic field when producing high strength, the time become pulsed magnetic field the magnetic line of force be subject to the cutting of conductive tissue at intracranial, produce induction field and faradic current, faradic current makes can excited neurocyte to be upset and produces depolarization (excitement).
The method that magnetic at present commonly used stimulates is by the capacitor stores electric energy, discharge to stimulating coil by electrical switch again, pulse high current forms strong pulsed magnetic field when the coil, the conductor cutting magnetic field around coil and produce faradic current, thus reach the purpose of stimulation.Owing to will obtaining high-intensity magnetic field, need to apply the even high-voltage pulse of several kilovolts of more than one hectovolts to coil, and the resistance of coil is as far as possible little, is roughly some thousandths of ohm, produces the transient high-current of thousands of supreme Wan An trainings during coil discharge on coil, to make coil heating, if continuous discharge will make the temperature of coil constantly rise, patient can burn when serious, having limited thus clinical treatment needs the long-time time that stimulates, and has dwindled clinical application range.In addition, excess Temperature also can affect the performance of coil, reduces the dielectric strength of coil, even damages stimulating coil.Therefore the heat radiation of coil is a key issue of magnetic stimulation system.
At present, the general type of cooling that adopts of the heat radiation of stimulating coil has: two kinds of the cooling and liquid circulating coolings of aerofoil fan.Fan coolling is that the coil that will generate heat directly faces toward blowing with fan, fan blows away heat by increasing cross-ventilation, but fan cooling can be brought a large amount of dusts into to stimulating coil, the accumulation of dust can form heat insulation layer, make the radiating effect of stimulating coil poor, can destroy simultaneously the dielectric strength of coil.
Liquid cooling mode is the medium of cooling liquid as heat conduction and heat radiation, pass through circulating pump, to through stimulating coil, radiator and wind radiator, the cooling coil that reaches of circulating fluid be dispelled the heat by the liquid of water tank, its radiating effect is better, but the insulation between coil and liquid easily goes wrong, there is potential coil short, leaks electricity, lead to the risk of serious malpractice, and the liquid-circulating heat radiation system needs power water pump, water tank, radiator, fan, its noise is large, system complex involves great expense.
The utility model content
Main purpose of the present utility model is to provide a kind of simple in structure, semiconductor cooling device of transcranial magnetic stimulation coil safely and efficiently, to overcome the defective of existing air-cooled and liquid cools.
In order to achieve the above object, the utility model proposes a kind of semiconductor cooling device of transcranial magnetic stimulation coil, be arranged on the stimulating coil structure, described stimulating coil structure comprises magnetic core and two stimulating coils of housing, inverted U, and insert respectively in the centre bore of two stimulating coils at the two ends of described magnetic core; This semiconductor cooling device comprises: semiconductor chilling plate and outer radiator, the hot junction that described semiconductor chilling plate has cold junction and connects with described cold junction, described cold junction and hot junction are separately positioned on the interior outside of described housing, cold junction is towards the stimulating coil end of needs refrigeration, and the hot junction closely is connected with described outer radiator; Cold junction passes to described outer radiator by the hot junction and outwards sheds from the heat that described stimulating coil end absorbs.
Preferably, the semiconductor cooling device of this transcranial magnetic stimulation coil also comprises the fin of the wing that is positioned at described housing, and described interior fin is the heat conduction nonmagnetic substance; The interior fin of described cold junction by described wing is across the top of described stimulating coil and magnetic core.
Preferably, described cold junction is by the described inner radiator of heat-conducting silicone grease close contact surface.
Preferably, be provided with liquid coolant in described housing in the cold junction of described semiconductor chilling plate and the cavity between magnetic core.
Preferably, described liquid coolant is at least inert fluid or high voltage insulating oil.
Preferably, the semiconductor cooling device of this transcranial magnetic stimulation coil also comprises for detection of and controls the Constant temp. regulating device of the operating current of described semiconductor chilling plate, when the temperature of stimulating coil raise, described Constant temp. regulating device increased the operating current of described semiconductor chilling plate; When the temperature of stimulating coil reduced, described Constant temp. regulating device reduced the operating current of described semiconductor chilling plate.
Preferably, described Constant temp. regulating device also is used for when the temperature overrate of described stimulating coil, output alarm signal.
Preferably, described Constant temp. regulating device comprises temperature sensor and feedback control circuit, and described temperature sensor contacts with described stimulating coil, for detection of the temperature of this stimulating coil; Described feedback control circuit is connected with the power supply circuits of described temperature sensor and described semiconductor chilling plate, is used for regulating according to the testing result of described temperature sensor the operating current of described semiconductor chilling plate.
Preferably, be provided with radiator fan in described outer radiator.
the semiconductor cooling device of a kind of transcranial magnetic stimulation coil that the utility model proposes, with traditional fan to the heating electronic component heat radiation, fin, the passive radiating mode such as heat pipe is compared, utilization has the semiconductor chilling plate of thermoelectric energy transfer characteristic, has refrigerating function when energising, the amount of heat that produces during the work of active absorption stimulating coil, thereby improved the radiating effect of stimulating coil, and volume is little, lightweight, pollution-free, low noise, low cost, temperature control is convenient etc., thereby extended the working time of stimulating coil, reach the purpose of long-time stimulation.
Description of drawings
Fig. 1 is the semiconductor cooling device of this utility model transcranial magnetic stimulation coil and the perspective view after the stimulating coil assembling;
Fig. 2 is the front view (band does not stimulate the coil handle) of this utility model Fig. 1;
Fig. 3 is A-A direction cutaway view in Fig. 2 (band stimulates the coil handle);
Fig. 4 is B-B direction cutaway view in Fig. 2 (band stimulates the coil handle).
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.
The specific embodiment
Should be appreciated that specific embodiment described herein only in order to explaining this utility model, and be not used in restriction this utility model.
Please in the lump referring to figs. 1 through shown in Figure 4, this utility model preferred embodiment proposes a kind of semiconductor cooling device of transcranial magnetic stimulation coil, be arranged on the stimulating coil structure, described stimulating coil structure comprises magnetic core 5 and two stimulating coils 6 of housing 10, inverted U, be provided with stimulating coil handle 8 on housing 10, two stimulating coil 6 left and right arrangements, magnetic core 5 is positioned at the top of two stimulating coils 6, and insert respectively in the centre bore of two stimulating coils 6 at the two ends of magnetic core 5.
In the present embodiment, semiconductor cooling device comprises: semiconductor chilling plate 1 and outer radiator 3 are provided with radiator fan 2 in outer radiator 3; The hot junction that described semiconductor chilling plate 1 has cold junction and connects with described cold junction, described cold junction and hot junction are separately positioned on the interior outside of described housing 10, and cold junction is towards stimulating coil 6 ends of needs refrigeration, and the hot junction closely is connected with described outer radiator 3; Cold junction passes to described outer radiator 3 by the hot junction and outwards sheds from the heat that described stimulating coil 6 ends absorb.
During concrete the installation, semiconductor chilling plate 1 passes through the interior fin 9 of wing across the top of stimulating coil 6 and magnetic core 5, and semiconductor chilling plate 1 is interior fin 9 heat conduction by wing, plays the conductive coil heat.The hot junction of semiconductor chilling plate 1 is outside, the outer radiator 3 of close contact; The cold junction of semiconductor chilling plate 1 is by the described interior fin of heat-conducting silicone grease close contact 9 surfaces.
The interior fin 9 of this wing is positioned at the housing 10 of stimulating coil 6 structures, and described interior fin 9 is the good nonmagnetic substance of heat conduction, such as materials such as copper aluminum.Simultaneously, be provided with liquid coolant 4 in cavity in described housing 10 between described semiconductor chilling plate 1 and interior fin 9 and magnetic core 5, interior fin 9 is positioned at magnetic core 5 and liquid coolant 4 both sides, works to increase heat conduction, to increase heat absorption and the radiating effect of semiconductor chilling plate 1.
Above-mentioned liquid coolant 4 can adopt inert fluid or high voltage insulating oil, perhaps other heat conductive insulating liquid; This liquid coolant 4 the housing 10 of stimulating coil 6 of sealing interior non-volatile, do not expand, can the insulation of stimulating coil 6 do not exerted an influence yet, thereby eliminated potential hidden danger.
The interior fin 9 that the materials such as above-mentioned copper aluminum are made can also increase the contact area with the inner heat conduction liquid coolant 4 of housing 10 of stimulating coil 6, increases heat-conducting effect.
The concrete PN junction semiconductor chilling plate 1 that adopts a series connection of the present embodiment semiconductor chilling plate 1, this semiconductor chilling plate 1 is the ternary solid solution alloy take Tellurobismuthite. as matrix.
The present embodiment by the operation principle that semiconductor chilling plate 1 dispels the heat is:
particularly, the hot junction of semiconductor chilling plate 1 is the outer outer radiator 3 of housing 10 that P-type semiconductor connects stimulating coil 6, and being N-type semiconductor, cold junction connects with P-type semiconductor, form a thermocouple pair, when to galvanic couple when passing to DC current, just have the transfer of energy, electric current absorbs heat when flowing to the joint of P-type semiconductor by N-type semiconductor, release heat when flowing to the N-type semiconductor joint by P-type semiconductor, so will need cooling stimulating coil 6 to be put into the cold junction of this device, just its heat can be taken away, the operating current of semiconductor chilling plate 1 is larger, refrigeration is better.
In addition, in order to guarantee semiconductor chilling plate 1 normal operation, reach better radiating effect, can also insert the operating current that temperature sensor detects stimulating coil 6 in the stimulating coil structure, in the operating temperature that allows (such as less than 43 degree) operating current of stimulating coil 6 is done thermostatic control.
Particularly, in the present embodiment device, can also be provided for detecting and control the Constant temp. regulating device of the operating current of described semiconductor chilling plate 1, when the temperature of stimulating coil 6 raise, described Constant temp. regulating device increased the operating current of described semiconductor chilling plate 1; When the temperature of stimulating coil 6 reduced, described Constant temp. regulating device reduced the operating current of described semiconductor chilling plate 1; In addition, when the temperature overrate of described stimulating coil 6 (such as surpassing 43 degree), described Constant temp. regulating device output alarm signal stops stimulating coil 6 outputs.
This Constant temp. regulating device can comprise said temperature sensor (not shown), and feedback control circuit, and described temperature sensor contacts with described stimulating coil 6, for detection of the temperature of this stimulating coil 6; Described feedback control circuit is connected with the power supply circuits of described temperature sensor and described semiconductor chilling plate 1, is used for regulating according to the testing result of described temperature sensor the operating current of described semiconductor chilling plate 1.
In the present embodiment, semiconductor chilling plate 1 can adopt the matured product on market, to stimulating coil 6 internal heat dissipating the time, can be convenient to use Constant temp. regulating device, in stimulating coil 6 positioned inside temperature sensors, when the interior temperature of stimulating coil 6 raises, increase the operating current of semiconductor chilling plate 1, when the interior temperature of stimulating coil 6 reduces, can reduce the operating current of semiconductor chilling plate 1, when the interior temperature overrate of stimulating coil 6, can also play high temperature alarm, stop the effect of stimulating coil 6 outputs.
in this utility model embodiment, the quasiconductor liquid refrigerator is compared with the liquid-circulating heat radiation mode with traditional fan, utilization has the semi-conducting material of thermoelectric energy transfer characteristic, has refrigerating function when energising, the amount of heat that can the active absorption electronic devices and components produces during work, and, at N-type semiconductor one end dress liquid cooled oil, can accelerate the heat radiation process, radiating effect is better, and noise is little, pollution-free, volume is little, cost is low, eliminated hidden danger, easy to use, thereby extended the working time of stimulating coil 6, reach safety, the long-time purpose that stimulates.
The above is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes this utility model description and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present utility model.
Claims (9)
1. the semiconductor cooling device of a transcranial magnetic stimulation coil, be arranged on the stimulating coil structure, and described stimulating coil structure comprises magnetic core and two stimulating coils of housing, inverted U, and insert respectively in the centre bore of two stimulating coils at the two ends of described magnetic core; It is characterized in that, this semiconductor cooling device comprises: semiconductor chilling plate and outer radiator, the hot junction that described semiconductor chilling plate has cold junction and connects with described cold junction, described cold junction and hot junction are separately positioned on the interior outside of described housing, cold junction is towards the stimulating coil end of needs refrigeration, and the hot junction closely is connected with described outer radiator; Cold junction passes to described outer radiator by the hot junction and outwards sheds from the heat that described stimulating coil end absorbs.
2. the semiconductor cooling device of transcranial magnetic stimulation coil according to claim 1, is characterized in that, also comprises the fin of the wing that is positioned at described housing, and described interior fin is the heat conduction nonmagnetic substance; The interior fin of described cold junction by described wing is across the top of described stimulating coil and magnetic core.
3. the semiconductor cooling device of transcranial magnetic stimulation coil according to claim 2, is characterized in that, described cold junction is by the described interior fin surface of heat-conducting silicone grease close contact.
4. the semiconductor cooling device of transcranial magnetic stimulation coil according to claim 3, is characterized in that, is provided with liquid coolant in described housing in the cold junction of described semiconductor chilling plate and the cavity between magnetic core.
5. the semiconductor cooling device of transcranial magnetic stimulation coil according to claim 4, is characterized in that, described liquid coolant is at least inert fluid or high voltage insulating oil.
6. the semiconductor cooling device of the described transcranial magnetic stimulation coil of any one according to claim 1-5, it is characterized in that, also comprise for detection of and control the Constant temp. regulating device of the operating current of described semiconductor chilling plate, when the temperature of stimulating coil raise, described Constant temp. regulating device increased the operating current of described semiconductor chilling plate; When the temperature of stimulating coil reduced, described Constant temp. regulating device reduced the operating current of described semiconductor chilling plate.
7. the semiconductor cooling device of transcranial magnetic stimulation coil according to claim 6, is characterized in that, described Constant temp. regulating device also is used for when the temperature overrate of described stimulating coil, output alarm signal.
8. the semiconductor cooling device of transcranial magnetic stimulation coil according to claim 6, it is characterized in that, described Constant temp. regulating device comprises temperature sensor and feedback control circuit, and described temperature sensor contacts with described stimulating coil, for detection of the temperature of this stimulating coil; Described feedback control circuit is connected with the power supply circuits of described temperature sensor and described semiconductor chilling plate, is used for regulating according to the testing result of described temperature sensor the operating current of described semiconductor chilling plate.
9. the semiconductor cooling device of transcranial magnetic stimulation coil according to claim 1, is characterized in that, is provided with radiator fan in described outer radiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201220703987 CN202961526U (en) | 2012-12-18 | 2012-12-18 | Semiconductor cooling device of transcranial magnetic stimulation coil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220703987 CN202961526U (en) | 2012-12-18 | 2012-12-18 | Semiconductor cooling device of transcranial magnetic stimulation coil |
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| CN202961526U true CN202961526U (en) | 2013-06-05 |
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| CN 201220703987 Expired - Lifetime CN202961526U (en) | 2012-12-18 | 2012-12-18 | Semiconductor cooling device of transcranial magnetic stimulation coil |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028193A (en) * | 2012-12-18 | 2013-04-10 | 深圳英智科技有限公司 | Semiconductor cooling device of transcranial magnetic stimulation coil |
| US9272157B2 (en) | 2010-05-02 | 2016-03-01 | Nervive, Inc. | Modulating function of neural structures near the ear |
| US9339645B2 (en) | 2010-05-02 | 2016-05-17 | Nervive, Inc. | Modulating function of the facial nerve system or related neural structures via the ear |
| TWI626067B (en) * | 2014-07-25 | 2018-06-11 | Ifg Corp | Continuous magnetic pulse generating device |
| US10065047B2 (en) | 2013-05-20 | 2018-09-04 | Nervive, Inc. | Coordinating emergency treatment of cardiac dysfunction and non-cardiac neural dysfunction |
| CN113082525A (en) * | 2021-02-23 | 2021-07-09 | 北京大学（天津滨海）新一代信息技术研究院 | Transcranial magnetic stimulation coil device, magnetic stimulation device and multi-channel transcranial magnetic stimulation system |
-
2012
- 2012-12-18 CN CN 201220703987 patent/CN202961526U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9272157B2 (en) | 2010-05-02 | 2016-03-01 | Nervive, Inc. | Modulating function of neural structures near the ear |
| US9339645B2 (en) | 2010-05-02 | 2016-05-17 | Nervive, Inc. | Modulating function of the facial nerve system or related neural structures via the ear |
| US10105549B2 (en) | 2010-05-02 | 2018-10-23 | Nervive, Inc. | Modulating function of neural structures near the ear |
| CN103028193A (en) * | 2012-12-18 | 2013-04-10 | 深圳英智科技有限公司 | Semiconductor cooling device of transcranial magnetic stimulation coil |
| CN103028193B (en) * | 2012-12-18 | 2015-07-22 | 深圳英智科技有限公司 | Semiconductor cooling device of transcranial magnetic stimulation coil |
| US10065047B2 (en) | 2013-05-20 | 2018-09-04 | Nervive, Inc. | Coordinating emergency treatment of cardiac dysfunction and non-cardiac neural dysfunction |
| TWI626067B (en) * | 2014-07-25 | 2018-06-11 | Ifg Corp | Continuous magnetic pulse generating device |
| CN113082525A (en) * | 2021-02-23 | 2021-07-09 | 北京大学（天津滨海）新一代信息技术研究院 | Transcranial magnetic stimulation coil device, magnetic stimulation device and multi-channel transcranial magnetic stimulation system |
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Granted publication date: 20130605 |
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