CN215216862U

CN215216862U - Refrigeration module and medical equipment

Info

Publication number: CN215216862U
Application number: CN202023061864.4U
Authority: CN
Inventors: 黄福胜; 张传美; 耿丽丽
Original assignee: Shenzhen Silver Basis Technology Co Ltd
Current assignee: Shenzhen Silver Basis Technology Co Ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-12-17
Anticipated expiration: 2030-12-17

Abstract

The utility model is suitable for a medical equipment technical field provides a refrigeration module and medical equipment, and this refrigeration module includes cold junction radiator, refrigeration piece and hot junction radiator. The cold end radiator is used for treating the refrigerated object and cools off, and the refrigeration piece sets up in the bottom of cold end radiator, and this refrigeration piece circular telegram back cools off the cold end radiator to according to feedback signal and carry out the temperature of switching on or off electricity or input current voltage regulation in order to maintain the cold end radiator, the hot junction radiator sets up in the bottom of refrigeration piece, and with the refrigeration piece contact, give off the heat in the air finally. The utility model provides a refrigeration module adopts the refrigeration piece between cold junction radiator and hot junction radiator, and on the cold junction radiator conducted the heat to the cold face of refrigeration piece, the hot face conduction of rethread refrigeration piece to the hot junction radiator on to take the heat out by the hot junction radiator, adopt the refrigeration piece only need use the electric energy, and volume weight is less, and temperature control is comparatively accurate, and the reliability is higher.

Description

Refrigeration module and medical equipment

Technical Field

The utility model belongs to the technical field of medical equipment, more specifically say, relate to a refrigeration module and medical equipment.

Background

With the rapid development of biological preparation technology, the medical application of biological products or medicines produced by biological preparation technology is increasing, the clinical application of reagent inspection, blood analysis and the like is also increasing rapidly, most of the product storage and test are carried out at 2-8 ℃, and the problem of medicines and inspection caused by circulation link factors occurs at present, so that the research and development, manufacture and quality management of effective and reliable refrigeration equipment are urgent.

The refrigeration mode of the existing medical equipment is generally compressor refrigeration, the compressor refrigeration belongs to mechanical refrigeration, firstly, a refrigeration working medium in an evaporator absorbs heat in a shell needing to be refrigerated, then the compressor increases working medium pressure and heats to the environment through a condenser, the heat-released working medium enters the evaporator again through expansion and cooling, and as the compressor, the evaporator, the condenser, an expansion valve and other parts are needed, the whole system is huge and complex, the occupied area is large, the noise is large, the power consumption and the failure rate are high, and the cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide a refrigeration module and medical equipment to solve current medical equipment and adopt the compressor refrigeration to lead to the huge complicated technical problem of system.

In order to achieve the above object, the utility model adopts the following technical scheme: provided is a refrigeration module, including:

the cold end radiator is used for cooling an object to be cooled;

the refrigerating sheet is arranged at the bottom of the cold-end radiator and used for cooling the cold-end radiator; and

and the hot end radiator is arranged at the bottom of the refrigerating sheet and is in contact with the refrigerating sheet.

Optionally, the refrigeration module further comprises:

and the heat insulation piece is arranged between the cold end radiator and the hot end radiator and is annularly arranged on the outer side of the refrigerating sheet.

Optionally, the refrigeration module further comprises:

the air inlet duct is communicated with an inlet of the hot end radiator;

the first fan is arranged at the inlet of the air inlet duct;

the air outlet duct is communicated with the outlet of the hot end radiator; and

and the second fan is arranged at the outlet of the air outlet duct.

Optionally, the cold end heat sink comprises:

the base plate is arranged on the refrigerating sheet, and a groove for collecting condensed water and a water outlet for discharging the condensed water are formed in the base plate;

the radiating fins are arranged on the chassis in an array manner; and

and the heat dissipation fan is arranged on the heat dissipation fins.

Optionally, the chassis comprises:

the first disc body part is provided with the radiating fins;

the second disc body part is arranged on the surface, away from the radiating fins, of the first disc body part, and a containing groove for containing the refrigerating sheet is formed in the surface, away from the first disc body part, of the second disc body part; and

a waterproof boss portion connected to the second tray portion and extending into the first tray portion. The utility model also provides a medical equipment, including the aforesaid refrigeration module, medical equipment still includes:

the cold end radiator is arranged in the shell, and the hot end radiator is arranged at the bottom of the shell; and

the carousel rotate connect in the casing to surround in the outside of cold junction radiator, and with cold junction radiator clearance fit for place the kit.

Optionally, a through hole is formed in the shell, and the cold end radiator is arranged in the through hole in a penetrating mode and in clearance fit with the through hole.

Optionally, the medical device further comprises:

and the sealing ring is arranged between the shell and the cold end radiator and used for sealing a gap between the shell and the cold end radiator. Optionally, the seal ring comprises:

the first ring body is arranged close to the shell and provided with an annular groove; and

and the second ring body is close to the cold end radiator and is connected with the first ring body, and the second ring body is fixedly connected with the cold end radiator. Optionally, the medical device further comprises:

and the elastic element is arranged between the hot end radiator and the sealing ring.

The utility model provides a refrigeration module's beneficial effect lies in: adopt the refrigeration piece between cold junction radiator and hot junction radiator, the cold junction radiator conducts the heat to the cold side of refrigeration piece on, the hot side conduction of rethread refrigeration piece is to the hot junction radiator on, and take the heat out by the hot junction radiator, adopt the refrigeration piece only need use the electric energy, volume weight is less, satisfy the demand of intensification and cooling simultaneously, temperature control is comparatively accurate, solved and adopted the compressor refrigeration to lead to the huge complicated technical problem of system, moreover, the steam generator is simple in structure.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic perspective view of a medical device according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a medical device according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional structural view of a refrigeration module according to an embodiment of the present invention;

FIG. 4 is a partially enlarged view of portion A of FIG. 3;

fig. 5 is a schematic perspective view of a cold-end heat sink according to an embodiment of the present invention;

fig. 6 is a schematic perspective view of a cold end heat sink according to an embodiment of the present invention;

fig. 7 is a schematic perspective view of a seal ring according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1-hot end radiator; 21-a housing; 210-a via; 22-a cover plate; 23-a base plate; 3-a cold-end heat sink; 31-a chassis; 310-a groove; 311-a water outlet; 312-a first disc portion; 313-a second pan section; 3130-a receiving groove; 314-a waterproof boss portion; 32-heat dissipation fins; 33-a radiator fan; 4-a turntable; 40-connecting holes; 41-driven gear; 5-sealing ring; 51-a first collar body; 510-an annular groove; 52-second circle body; 520-a first connection hole; 61-refrigerating plate; 62-insulation; 63-an elastic member; 71-an air inlet duct; 72-first fan; 73-an air outlet duct; 74-second fan.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 and fig. 2 together, a refrigeration module according to an embodiment of the present invention will now be described. The medical equipment is mainly used for medical clinical tests such as reagent inspection and blood analysis. In particular, with further reference to fig. 3, the refrigeration module comprises a cold-side heat sink 3, a refrigeration fin 61 and a hot-side heat sink 1. Wherein, cold junction radiator 3 is used for treating the refrigerated object and cools off, refrigeration piece 61 sets up in the bottom of cold junction radiator 3, this refrigeration piece 61 is cooled off cold junction radiator 3 after the circular telegram, and carry out the break-make or adjust the temperature of input current voltage in order to maintain cold junction radiator 3 according to feedback signal, thereby realize cooling cold junction radiator 3, hot junction radiator 1 sets up in the bottom of refrigeration piece 61, and contact with refrigeration piece 61, finally give off the heat in the air. The specific working principle is as follows:

the refrigerating sheet 61 is a thermoelectric refrigerating sheet 61, and starts to refrigerate after being electrified, the cold-end radiator 3 continuously transfers heat to the cold surface of the thermoelectric refrigerating sheet 61, the hot surface of the thermoelectric refrigerating sheet 61 is conducted to the hot-end radiator 1, and the hot-end radiator 1 transfers the heat to the air through contacting with the air. When the temperature reaches the required temperature, the thermoelectric refrigerating sheet 61 enters the lowest working state, and after the feedback of the temperature signal shows that the temperature is over-temperature, the thermoelectric refrigerating sheet is restarted to enter the refrigerating state. It should be noted that, according to actual needs, the refrigeration or heating function can be flexibly realized by applying the thermoelectric refrigeration principle.

Wherein the cooling fins 61 may provide a great help. Compared with other refrigeration equipment, the refrigeration equipment has many advantages: only electric energy is used, no moving part is provided, and maintenance is basically not needed; the volume and the weight are very small; the same device meets the requirements of temperature rise and temperature reduction; the temperature control is more accurate and can be accurately controlled within the range of 0.1 ℃; the reliability is high and reaches more than 200000 hours; electronic silence without generating any electronic interference signal; the device can work at any angle and in a zero gravity state; is environment-friendly, does not use and does not generate substances harmful to the environment. The hot end radiator transfers heat out.

The utility model provides a refrigeration module, compared with the prior art, adopt refrigeration piece 61 between cold junction radiator 3 and hot junction radiator 1, cold junction radiator 3 can be with heat conduction to the cold side of refrigeration piece 61 on, the hot side conduction of rethread refrigeration piece 61 is to hot junction radiator 1 on, and take the heat out by hot junction radiator 1, adopt refrigeration piece 61 only to need use the electric energy, volume weight is less, satisfy the demand of intensification and cooling simultaneously, temperature control is comparatively accurate, the technical problem that the adoption compressor refrigeration leads to the huge complicacy of system has been solved, the reliability is higher.

The refrigerating sheet 61 is a semiconductor refrigerating sheet 61, also called a thermoelectric refrigerating sheet 61, and is a heat pump. Its advantages are no slide part, limited space, high reliability and no pollution of refrigerant. By using the Peltier effect of the semiconductor materials, when direct current passes through a galvanic couple formed by connecting two different semiconductor materials in series, heat can be absorbed and released at two ends of the galvanic couple respectively, and the aim of refrigeration can be fulfilled. The refrigerating technology which generates negative thermal resistance is characterized by no moving parts and higher reliability.

It should be noted that the hot-end heat sink 1 may be designed into different fin types, or utilize a soaking tube, a soaking plate, etc., and is not limited to the composition structure thereof, as long as heat dissipation can be achieved, and the hot-end heat sink 1 can transfer heat of the cold-end heat sink 3.

In another embodiment of the present invention, referring to fig. 3 and 4, the heat insulation member 62 is disposed between the cold end heat sink 3 and the hot end heat sink 1, and is disposed around the outside of the cooling fins 61. Preferably, the heat insulation element 62 is made of heat insulation cotton, which can not only block the heat transfer path between the hot end heat sink 1 and the cold end heat sink 3, but also make the heat transfer from the cold end heat sink 3 to the hot end heat sink 1 in one way, and then radiate the heat to the air.

In another embodiment of the present invention, referring to fig. 2 to 4, the refrigeration module further includes an air inlet duct 71, a first fan 72, an air outlet duct 73, and a second fan 74. Wherein, the air inlet duct 71 is communicated with the inlet of the hot-end radiator 1; the first fan 72 is arranged at the inlet of the air inlet duct 71; the air outlet duct 73 is communicated with the outlet of the hot end radiator 1; the second fan 74 is disposed at an outlet of the air outlet duct 73. The air inlet duct 71 and the first fan 72 can guide the air inside the system to the subsequent hot-end heat sink 1, the first fan 72 can be independently controlled, free start and stop can be realized when the load is small, the second fan 74 can be matched for heat dissipation when the load is overlarge, and the air outlet duct 73 and the second fan 74 can guide hot air out of the hot-end heat sink 1. Specifically, when the hot-end heat sink 1 is a fin arranged in an array, the air inlet duct 71 is communicated with an inlet of the fin, and the air outlet duct 73 is located at the bottom of the fin and is used for guiding hot air out of the hot-end heat sink 1.

In another embodiment of the present invention, referring to fig. 5 and 6, the cold-end heat sink 3 includes a chassis 31, heat dissipation fins 32 and a heat dissipation fan 33. The base plate 31 is arranged on the refrigerating sheet 61, a groove 310 for collecting condensed water and a water outlet 311 for discharging the condensed water are formed in the base plate 31, the groove 310 can collect the condensed water to prevent the condensed water from overflowing to external equipment, and the condensed water is discharged through the water outlet 311 to prevent the condensed water from accumulating inside the cold-end radiator 3; the heat dissipation fins 32 are arranged on the chassis 31 in an array and have a certain heat dissipation function. The heat radiation fan 33 is provided on the heat radiation fins 32, and the heat radiation can be performed by rotating the heat radiation fan 33. Specifically, a temperature measurement feedback signal in communication connection with the cooling fan 33 is further provided in the cold-end heat sink 3, and the temperature measurement feedback signal can monitor the temperature in the housing 21 and turn on or off according to the feedback signal to maintain the temperature of the object to be cooled.

In another embodiment of the present invention, referring to fig. 3 and 6, the chassis 31 includes a first chassis portion 312, a second chassis portion 313, and a waterproof boss portion 314. Wherein, the first disk body 312 is provided with the heat dissipation fins 32; the second tray portion 313 is arranged on the surface of the first tray portion 312 away from the heat dissipation fins 32, and an accommodating groove 3130 for accommodating the refrigeration sheet 61 is formed in the surface of the second tray portion 313 away from the first tray portion 312; the waterproof boss portion 314 is connected to the second pan portion 313 and extends into the first pan portion 312. The cooling fins 61 are accommodated in the accommodating groove 3130 of the first tray part 312, and the waterproof boss part 314 is provided to protect the electric power of the cooling fins 61 from the condensed water. It should be noted that the height of the waterproof boss portion 314 can be selected according to actual needs.

With particular reference to fig. 1 to 3, the present invention further provides a medical device, comprising the refrigeration module in any of the above embodiments, the medical device further comprising a housing 21 and a turntable 4. The shell 21 is internally provided with a cold end radiator 3, the bottom of the shell 21 is provided with a hot end radiator 1, and the hot end radiator 1 is contacted with the cold end radiator 3 through a refrigerating sheet 61, so that heat is conducted to the outside of the shell 21. The rotary table 4 is rotatably connected in the casing 21, surrounds the outer side of the cold end radiator 3, is in clearance fit with the cold end radiator 3, and is used for placing an object to be cooled. It should be noted that the substance to be cooled may be a reagent to be cooled.

The object to be cooled is placed in the corresponding rotating disc 4, and the rotating disc 4 rotates to drive the object to be cooled connected with the rotating disc to rotate. Compare in current casing 21 and rotate and drive and treat that the cooling object rotates, can transmit weight and rotatory shearing force for cold junction radiator 3 and refrigeration piece 61 and bear, this embodiment sets up casing 21 and cold junction radiator 3 into the mounting, casing 21 and cold junction radiator 3 are motionless promptly, rotate in order to drive the kit through setting up a carousel 4, when this carousel 4 rotates, because the outside of cold junction radiator 3 is located to 4 rings of carousel, and with 3 clearance fit of cold junction radiator, be about to cold junction radiator 3 and carousel 4 keep apart, thereby the shearing force that produces when making 4 rotations of carousel can not transmit cold junction radiator 3 and refrigeration piece 61, prevent to cause the fracture damage of refrigeration piece 61 under the long-time operation.

The utility model provides a medical equipment compares with prior art, on the one hand, has adopted the refrigeration module in the above-mentioned arbitrary embodiment, and volume weight is less, and can accurate accuse temperature, and the reliability is high. On the other hand, adopted to rotate and connected in casing 21's carousel 4, replace casing 21 through carousel 4 and drive and wait that the cooling object rotates, and because the outside of cold junction radiator 3 is located to carousel 4 ring, and with 3 clearance fit of cold junction radiator, make carousel 4 rotate the shearing force that produces and can not transmit on cold junction radiator 3 and refrigeration piece 61, thereby the weight of casing 21 among the current medical equipment and rotatory shearing force are born by cold junction radiator 3 and refrigeration piece 61, cause refrigeration piece 61 to cut cracked technical problem easily, the life of refrigeration piece 61 has been prolonged effectively.

In another embodiment of the present invention, referring to fig. 2, the medical apparatus further comprises a driving member (not shown in the figure), which is in transmission connection with the rotating disc 4 for driving the rotating disc 4 to rotate. In particular, the driving member may be a driving motor, and an output end of the driving motor is in transmission connection with the rotating disc 4, so as to drive the rotating disc 4 to rotate.

In another embodiment of the present invention, please refer to fig. 3 and fig. 4 together, because the rotary plate 4 is connected to the housing 21, the rotary plate 4 may transmit the motion to the housing 21 by rotating, the through hole 210 is opened on the housing 21 for further avoiding the transmission of the motion, the cold end heat sink 3 is disposed in the through hole 210, and the cold end heat sink 3 is in clearance fit with the through hole 210, so as to avoid the housing 21 from transmitting the motion to the cold end heat sink 3.

Further, since there is a gap between the housing 21 and the cold end heat sink 3, the medical device further includes a sealing ring 5, where the sealing ring 5 is disposed between the housing 21 and the cold end heat sink 3 and is used for sealing the gap between the housing 21 and the cold end heat sink 3. When clearance fit between casing 21 and cold junction radiator 3, cold junction radiator 3 can produce some comdenstion water at the during operation, and this comdenstion water may flow along the clearance between casing 21 and the cold junction radiator 3 to influence other parts, set up sealing washer 5 through the clearance department between casing 21 and cold junction radiator 3, thereby can be fine avoid the comdenstion water to leak. It should be noted that the material of the sealing ring 5 may be selected according to practical stress, and is not limited herein.

Specifically, with further reference to fig. 7, a seal ring 5 is located at the bottom of the housing 21 and the cold end heat sink 3, the seal ring 5 comprising a first ring 51 and a second ring 52. The first ring body 51 is disposed close to the casing 21, the first ring body 51 is provided with an annular groove 510, the first ring body 51 has an arc-shaped longitudinal cross section, the first ring body 51 is provided with the annular groove 510, the casing 21 has a certain weight, and the first ring body 51 is attached to the casing 21 by extrusion. The second circle 52 is close to the cold end radiator 3 and sets up to be connected with first circle 51, is provided with first connecting hole 520 on the second circle 52, passes first connecting hole 520 through connecting pieces such as screws, thereby makes second circle 52 and cold end radiator 3 fixed connection, and the cross sectional shape of this second circle 52 is squarely, and one side and the first circle 51 of second circle 52 are connected, and the breach department of cold end radiator 3 is located to the opposite side appearance, thereby forms inseparable sealed.

In another embodiment of the present invention, referring to fig. 3 and 4, the medical device further includes an elastic member 63, the elastic member 63 is disposed between the hot end heat sink 1 and the sealing ring 5, and is fixedly connected to the cold end heat sink 3, so that the sealing ring 5 and the bottom of the housing 21 and the cold end heat sink 3 can be sealed by the deformation of the elastic member 63. Specifically, the elastic member 63 is a spring plate or a spring, and the spring plate has a simple structure and a good deformation. The material of the elastic member 63 may be selected by performing an accounting according to the actual force, which is not limited herein.

In another embodiment of the present invention, please refer to fig. 3, the medical device further includes a bottom plate 23 and a cover plate 22, the bottom plate 23 is disposed between the casing 21 and the hot end heat sink 1 to prevent the casing 21 from being directly placed on the hot end heat sink 1, and the cover plate 22 is disposed on the casing 21 to prevent the leakage of the cool air.

The working principle of the whole medical equipment is as follows:

the temperature in the shell 21 of the whole refrigeration module needs to be reduced to 2-8 ℃ in a short time, the refrigeration is started after the refrigeration sheet 61 is electrified, the cold-end radiator 3 continuously conducts heat to the cold surface of the refrigeration sheet 61, the hot-end radiator 1 conducts heat through the hot surface of the refrigeration sheet 61, external cold air enters the hot-end radiator 1 through the air inlet duct 71 and carries the heat out of the hot-end radiator 1 through the air outlet duct 73, when the temperature reaches 2-8 ℃, the refrigeration sheet 61 enters the lowest working state, after the feedback display of a temperature signal is waited for overtemperature, the refrigeration state is restarted, and therefore the refrigeration or heating function can be flexibly achieved.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A refrigeration module which characterized in that: the method comprises the following steps:

the cold end radiator is used for cooling an object to be cooled;

the hot end radiator is arranged at the bottom of the refrigerating sheet and is in contact with the refrigerating sheet;

the cold end radiator comprises a base plate, the base plate is arranged on the refrigerating sheet, a groove used for collecting condensed water and a water outlet used for discharging the condensed water are formed in the base plate, and the water outlet is close to the periphery of the base plate.

2. The refrigeration module of claim 1 wherein: the refrigeration module still includes:

3. The refrigeration module of claim 1 wherein: the refrigeration module still includes:

the air inlet duct is communicated with an inlet of the hot end radiator;

the first fan is arranged at the inlet of the air inlet duct;

and the second fan is arranged at the outlet of the air outlet duct.

4. A refrigeration module as claimed in any one of claims 1 to 3, wherein: the cold end heat sink includes:

the radiating fins are arranged on the chassis in an array manner; and

and the heat dissipation fan is arranged on the heat dissipation fins.

5. The refrigeration module of claim 4 wherein: the chassis includes:

the first disc body part is provided with the radiating fins;

a waterproof boss portion connected to the second tray portion and extending into the first tray portion.

6. A medical device, characterized by: comprising a refrigeration module according to any of claims 1 to 5, the medical device further comprising:

and the turntable is rotationally connected in the shell, surrounds the outer side of the cold end radiator, is in clearance fit with the cold end radiator and is used for placing an object to be cooled.

7. The medical device of claim 6, wherein: the shell is provided with a through hole, and the cold end radiator is arranged in the through hole in a penetrating mode and in clearance fit with the through hole.

8. The medical device of claim 6, wherein: the medical device further comprises:

and the sealing ring is arranged between the shell and the cold end radiator and used for sealing a gap between the shell and the cold end radiator.

9. The medical device of claim 8, wherein: the sealing ring includes:

and the second ring body is close to the cold end radiator and is connected with the first ring body, and the second ring body is fixedly connected with the cold end radiator.

10. The medical device of claim 8, wherein: the medical device further comprises: