CN105371552B - A kind of portable refrigerating device and portable medical cold compress device - Google Patents

Abstract

The invention discloses a portable refrigerating device and a portable medical cold compress device. The portable refrigerating device comprises: a portable box body, a refrigerating storage cavity arranged in the box body for accommodating items to be refrigerated; a refrigerating system and a control system; and A rechargeable battery for power supply arranged in the box and connected with the refrigeration system and the control system; a charging interface connected with the rechargeable battery; a portable refrigeration device and a portable medical cold compress provided by the present invention The device is small in size and easy to carry. The portable refrigeration device can provide cold drinks conveniently. The portable medical cold compress device adopts the intermittent cold compress system that meets the needs of joint injury treatment, and can perform intermittent cold compress on the injured part in time, which greatly improves the cold compress performance. Effect. The intermittent cold compress system includes three straps for different cold compress parts, which can be freely switched according to needs during use, which is flexible and convenient.

Description

A portable refrigeration device and a portable medical cold compress device

technical field

The invention relates to the field of portable refrigeration devices, in particular to a portable refrigeration device and a portable medical cold compress device.

Background technique

Outdoor sports are becoming more and more popular. It is unavoidable that ankles or other joints are injured during outdoor sports. For serious cases such as fractures or bleeding, people often send the injured directly to the hospital for treatment. Common situation is that joint is damaged, and swelling occurs at the damaged site, which makes the wounded feel severe pain. In order to stop bleeding, analgesia and detumescence, people's usual treatment method is to cold compress the damaged site with ice at the damaged site.

Within 6 hours after the injury, ice should be used for cold compress treatment on the injured part as soon as possible. In order to prevent the body from shivering and promote metabolism and aggravate the injury, cold compress treatment should be carried out as soon as possible after the injury. Well, the treatment time can be shortened accordingly. However, it is generally not easy to get ice cubes when exercising outdoors, and it is impossible to treat them in time, which delays the best time for treatment; even if you get ice cubes in time, if you don’t handle them well, you may get the opposite effect; The injured skin of the human body is not easy to produce complete contact, and maintaining a long ice posture makes the limbs prone to fatigue. When the ice is applied for a period of time, a certain therapeutic effect can be achieved, but if the ice is applied for too long, the temperature of the human body will drop, and the human body will promote metabolism by fighting a cold war, the blood flow will be accelerated, the capillaries will expand, and the blood in the injured part will flow out and The interstitial fluid seeps out and further swells the injured part, aggravating the pain of the human body. In addition, people like to drink some cold drinks to quench their thirst and cool down after exercising, but it is inconvenient to obtain cold drinks in outdoor sports places, and most of the existing refrigeration devices cannot be easily carried.

When the human body has a fever, in order to cool down or suppress the continuous rise in body temperature, people usually also use cold towels or ice packs to apply cold compresses to the forehead. The cold storage capacity of cold towels is poor and the effect is not good; It is very inconvenient to use.

Therefore, the prior art still needs to be improved and developed.

Contents of the invention

The technical problem to be solved by the present invention is to provide a portable refrigeration device and a portable medical cold compress device in view of the above-mentioned defects of the prior art, so as to overcome the inconvenience of carrying the refrigeration device in the prior art and the inconvenient cold compress when joints are accidentally damaged. The problem of poor cooling effect.

The technical solution adopted by the present invention to solve technical problems is as follows:

A portable refrigeration unit comprising:

A portable box, which is arranged in the box and is used for accommodating a refrigeration storage chamber for items to be refrigerated; and a refrigeration system arranged in the box for cooling the refrigeration storage chamber, and a refrigeration system connected to the refrigeration system for A control system for controlling the refrigeration system to perform refrigeration; and a rechargeable battery for power supply arranged in the box and connected to the refrigeration system and the control system; a charging interface connected to the rechargeable battery;

The refrigeration system is a closed system formed by sequentially connecting a compressor, a condenser, a dry filter, a capillary tube, and an evaporator arranged inside the refrigeration chamber;

Or the refrigerating system is a semiconductor refrigerating system composed of a semiconductor cooling fin arranged on the outer side wall of the cooling chamber, a heat sink in contact with the hot surface of the semiconductor cooling fin, and a cooling fan whose air suction end is in contact with the fin surface of the cooling fin. system.

In the portable refrigeration device, the control system includes a temperature control system and a timing control system for controlling the temperature of cooling water;

The temperature control system includes a temperature controller and a thermocouple probe connected to the temperature controller arranged in the cooling chamber, and the timing control system includes a timing controller.

In the portable refrigeration device, the compressor is a 14-24-000X miniature compressor with a rated DC voltage of 24V and a rated power of 120W.

A portable medical cold compress device, comprising:

The box, the cooling water tank installed in the box, the cooling system installed in the box for cooling the cooling water in the cooling water tank, and the intermittent cooling system for using the cooling water in the cooling water tank to perform intermittent cold compresses on the damaged parts Cold compress system, a control system for controlling the operation of the refrigeration system and the intermittent cold compress system, and a built-in power supply for the refrigeration system and the intermittent cold compress system;

The intermittent cold compress system includes a water circulation system for cold compressing the injured part and an air pressurization system for intermittently isolating the water circulating system from the injured part.

In the portable medical cold compress device, the control system includes a temperature control system for controlling the temperature of cooling water and a timing control system for controlling the operation of the intermittent cold compress system;

In the portable medical cold compress device, the temperature control system includes a temperature controller, a thermocouple probe installed in the cooling water tank and connected to the temperature controller, the timing control system includes a timing controller, and the timing controller A timing controller main switch and an air pump outlet switch are arranged on the top.

In the portable medical cold compress device, the refrigeration system is a closed system formed by sequentially connecting a compressor, a condenser, a dry filter, a capillary tube, and an evaporator arranged inside the cooling water tank, or a The semiconductive cooling fin on the wall, the heat sink in contact with the hot surface of the semiconductive cooling fin, and the cooling fan with the air suction end in contact with the fin surface of the cooling fin constitute a semiconductive refrigeration system; the built-in power supply is a lithium battery.

In the portable medical cold compress device, the water circulation system includes a cooling water tank, a water pump arranged at the water outlet of the cooling water tank, a strap for cold compress, and a water pipe for sequentially connecting the water pump, the strap, and the cooling water tank; The air pressurization system includes an air pump close to the water pump inside the box, the strap, and an air pipe for connecting the strap and the air pump.

In the portable medical cold compress device, the strap includes a working section, an elastic section and an engaging section,

The working section, the elastic section and the engaging section are sequentially connected together to form a whole,

The engaging section is provided with an engaging section button, and the working section is provided with at least one working section button for combining with the engaging section button.

In the portable medical cold compress device, the working section includes an inner heat insulation layer arranged on the innermost side for contact with the skin, a cooling water layer arranged in the middle, and an outer heat insulation layer arranged on the outermost side,

The side of one end of the inner heat insulation layer is provided with an air inlet of the inner heat insulation layer, and the side of the other end is provided with an air outlet of the inner heat insulation layer, and the air outlet of the inner heat insulation layer is in a normally open state.

The side of one end of the cooling water layer is provided with a cooling water layer water inlet, and the side of the other end is provided with a cooling water layer water outlet,

The side of one end of the outer heat insulation layer is provided with an air inlet of the outer heat insulation layer, and the side of the other end is provided with an air outlet of the outer heat insulation layer. Open or seal the mouth plug of the air outlet of the outer heat insulation layer;

The inner diameter of the air inlet of the inner heat insulation layer is larger than the inner diameter of the air outlet of the inner heat insulation layer, the inner diameter of the water inlet of the cooling water layer is the same as that of the water outlet of the cooling water layer, and the inner diameter of the air inlet of the outer heat insulation layer is larger than The inner diameter of the air outlet of the outer heat insulation layer.

In the portable medical cold compress device, the water delivery pipe includes a first water delivery pipe and a second water delivery pipe;

The air delivery pipe includes a first air delivery pipe and a second air delivery pipe;

The air pump includes a first air outlet and a second air outlet;

One end of the first air pipe is connected to the air inlet of the inner insulation layer, and the other end is connected to the first air outlet;

One end of the second air pipe is connected to the air inlet of the outer heat insulation layer, and the other end is connected to the second air outlet;

One end of the first water delivery pipe is connected to the water inlet of the cooling water layer, and the other end is connected to the water outlet of the water pump;

One end of the second water delivery pipe is connected to the water outlet of the cooling water layer, and the other end is connected to the water inlet of the cooling water tank;

The straps include a first strap for ankles, a second strap for wrists and a third strap for forehead.

A portable refrigerating device and a portable medical cold compress device provided by the present invention are small in size and easy to carry. The portable refrigerating device can provide cold drinks conveniently. The portable medical cold compress device adopts an intermittent cold compress system that meets the needs of joint injury treatment. Timely intermittent cold compress on the injured part greatly improves the effect of cold compress. The intermittent cold compress system includes three straps for different cold compress parts, which can be freely switched according to needs during use, which is flexible and convenient.

Description of drawings

Fig. 1 is a schematic diagram 1 of the internal layout of the cabinet of a preferred embodiment of the portable medical cold compress device of the present invention.

Fig. 2 is a schematic structural diagram of a condenser in a preferred embodiment of the portable medical cold compress device of the present invention.

Fig. 3 is a schematic diagram of the layout of the condenser in a preferred embodiment of the portable medical cold compress device of the present invention.

Fig. 4 is a schematic structural diagram of an evaporator in a preferred embodiment of the portable medical cold compress device of the present invention.

Fig. 5 is a schematic diagram of a refrigeration system of a preferred embodiment of the portable medical cold compress device of the present invention.

Fig. 6 is a schematic structural diagram of a strap of a preferred embodiment of the portable medical cold compress device of the present invention.

Fig. 7 is a schematic diagram 2 of the internal layout of the box of a preferred embodiment of the portable medical cold compress device of the present invention.

Fig. 8 is a schematic diagram of the heat sink structure of a preferred embodiment of the portable medical cold compress device of the present invention.

Fig. 9 is a schematic diagram 1 of the internal layout of the cabinet of a preferred embodiment of the portable refrigeration device of the present invention.

Fig. 10 is a schematic diagram 2 of the internal layout of the cabinet of the preferred embodiment of the portable refrigeration device of the present invention.

detailed description

In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, and Fig. 5, the portable medical cold compress device according to the embodiment of the present invention includes: a box body 7, a cooling water tank 22 arranged in the box body 7, and a cooling water tank 22 arranged in the box body 7 The refrigeration system for cooling the cooling water in the cooling water tank 22, the intermittent cold compress system for using the cooling water in the cooling water tank 22 to perform intermittent cold compresses on the damaged parts, used to control the refrigeration system and the intermittent cold compress The control system for system operation, and the built-in power supply for powering the refrigeration system and intermittent cold compress system;

That is, the portable medical cold compress device of the embodiment of the present invention is composed of a box body 7, a cooling water tank 22, a built-in power supply, a refrigeration system, a control system, and an intermittent cold compress system.

The interior of the box body 7 is divided into several intervals of different sizes, and each component is placed separately. For the convenience of carrying, the embodiment of the present invention sets the box body 7 as a rectangular parallelepiped box body of 300mm*200mm*208mm, and the box cover 24 is arranged on the box body 7 The upper surface is connected with the box body 7 by two connectors such as hinge 11.

The refrigerating water tank 22 is arranged inside the box body 7 in a section close to one end of the box body 7, and is used to store cooling water. The refrigerating water tank 22 is surrounded by two layers of plastic walls inside and outside, and the two layers of plastic walls are separated by 10 mm. It is filled with polyurethane foam plastic with good thermal insulation performance. The upper surface of the cooling water tank 22 is open, and the upper edge of the opening of the cooling water tank 22 is arranged with iron sheets. In addition, the flat water tank cover is connected with the cooling water tank 22 through connectors such as hinges. The inner wall of the water tank cover Magnetic door seals are arranged around, relying on the magnetic force between the door seals and the iron sheet to hold the water tank cover and the cooling water tank 22 tightly; at the two bottom corners where the cooling water tank 22 is in contact with the box wall, there are respectively a water outlet and a water intake.

The built-in power supply is a lithium battery 6, and the lithium battery 6 is arranged at the lower end of the casing 7. Preferably, the lithium battery 6 has a capacity of 12AH, an output voltage of 24V, and a size of 290mm*40mm*100mm.

The refrigeration system includes a compressor 1 , a condenser 2 , a dry filter 3 , a capillary tube 4 , and an evaporator 5 .

The compressor 1 is arranged in a section on the box wall in the opposite direction to the refrigeration water tank 22 in the box body 7. The shape of the compressor is regarded as a cylinder in myopia, and the side of the compressor 1 is provided with an air inlet and an air outlet; consider Regarding the size and weight of the compressor 1, what the embodiment of the present invention adopted is a 14-24-000X miniature compressor with a rated DC voltage of 24V and a rated power of 120W on the market, with a size of 56mm (diameter)*78mm (height).

Condenser 2 is arranged in the groove of the outer surface of the back side of box body 7, and condenser 2 is in contact with external ambient air, and the two ends of condenser 2 pass through the wall of box body 7, and condenser 2 One end is connected to the air outlet of the compressor 1, and the other end is connected to the dry filter 3. The condenser 2 is composed of a serpentine heat transfer tube 201 and steel wires 202 welded on both sides of the serpentine heat transfer tube 201; preferably, The length of the groove is 275mm, the width is 175mm, and the depth is 20mm. The condenser 2 adopts an air free movement condenser with a silk tube structure, and the serpentine heat transfer tube 201 is a Bondi tube with an inner diameter of 5mm (a kind of Composite steel pipe, copper-plated outside the tube), the distance between the axes of two adjacent serpentine heat transfer tubes 201 is 25mm, and the length of the straight part of each tube is 140mm; the diameter of the steel wire 202 is 1.5mm, and the axis of the two adjacent steel wires The steel pipe and the serpentine heat transfer tube 201 are arranged vertically at a distance of 7mm; the function of the steel wire 202 is to increase the heat transfer area outside the tube, which is beneficial to the heat dissipation of the condenser.

Alternatively, for the above-mentioned condenser 2, the number of serpentine heat transfer tubes 201 is appropriately reduced, the steel wire 202 is not used, and a cooling fan is arranged on the side of the condenser 2 facing the external environment. Wherein, the suction end of the cooling fan is in contact with the condenser 2 . The effect of the cooling fan is to accelerate the cooling speed of the condenser 2 and reduce the size of the condenser 2 accordingly.

The dry filter 3 is arranged in the interval above the cooling water tank 22, and the effect of the dry filter 3 is to filter impurities in the refrigerant and absorb moisture in the refrigerant to ensure that the capillary 4 is unimpeded and the refrigeration system works normally; preferably, the dry filter The shell of device 3 is a copper tube with a diameter of 16 mm and a length of 100 mm. Thick copper wire filter screen, the outlet end is a fine copper wire filter screen, and molecular sieve is installed in the middle.

The capillary tube 4 is coiled and arranged on the bottom surface of a specific section in the box body 7 close to the compressor 1. The capillary tube 4 has two functions. The first function is to reduce the pressure of the high-pressure refrigerant coming out of the condenser 2. Another effect is to control the flow of refrigerant, the longer the length of the capillary 4, the smaller the pipe diameter, the smaller the flow of refrigerant, the higher the evaporation temperature; preferably, the capillary 4 is 1.0mm in inner diameter and 0.5mm in thickness , A copper tube with a length of 1.8m.

The evaporator 5 is arranged inside the cooling water tank 22. The bottom surface of the evaporator 5 is parallel to the bottom surface of the cooling water tank 22, and the folded surface is parallel to the wall surface of the cooling water tank 22. The suction port of the compressor 1 is connected; preferably, the evaporator 5 is a copper serpentine tube with an inner diameter of 10mm, the length of the straight part of the serpentine tube is 80mm, and the distance between the axes of two adjacent tubes is 24mm, the evaporator 5 The structure shown in Figure 4, the evaporator 5 both sides are folded, and form 90 degree angles with the bottom surface.

The compressor 1, the condenser 2, the dry filter 3, the capillary tube 4, and the evaporator 5 arranged inside the cooling water tank 22 are connected in sequence to form a closed system.

Specifically, one port of the condenser 2 is connected to the air outlet of the compressor 1, the other port is connected to the inlet of the drier filter 3, the outlet of the drier filter 3 is connected to one end of the capillary 4, and the other end of the capillary 4 It is connected with the inlet end of the evaporator 5, and the outlet end of the evaporator 5 is connected with the suction port of the compressor 1;

The high-temperature and high-pressure refrigerant vapor from the outlet of compressor 1 enters the condenser 2, and the condenser 2 dissipates the heat of the refrigerant vapor into the air, so that the refrigerant condenses into a high-pressure and normal-temperature liquid close to the ambient temperature, and the refrigerant liquid passes through After the drying filter 3 removes impurities and moisture, it enters the capillary 4, and forms a low-pressure and low-temperature refrigerant after passing through the capillary 4. The low-pressure and low-temperature refrigerant enters the evaporator 5 and absorbs heat from the environment to form low-temperature and low-pressure steam. Finally, the evaporator 5 The low-temperature and low-pressure steam enters the compressor 1 from the suction port of the compressor 1 to complete a refrigeration cycle.

The control system is composed of a temperature controller 12, a thermocouple probe, a timing controller 14, a water pump 15 and an air pump 16; the control system includes a temperature control system and a timing control system.

The temperature control system is composed of a temperature controller 12 and a thermocouple probe connected to the temperature controller 12 arranged in the cooling water tank 22 for controlling the cooling water temperature; the timing controller 14 constitutes a timing control system for controlling the intermittent cold compress system run.

The temperature controller 12 is set in the lower part of the compressor 1, connects the lithium battery 6 through two wires, and connects the compressor 1 through the other two wires; Connect with temperature controller 12.

The temperature controller 12 controls the disconnection of the compressor 1 and the lithium battery 6 by detecting the temperature of the cooling water in the cooling water tank 22 through a thermocouple probe. When the temperature of the cooling water is higher than 4 degrees Celsius, the temperature controller 12 connects the compressor 1 to Through the lithium battery 6, the refrigeration system starts to work; when the temperature of the cooling water is lower than 2 degrees Celsius, the temperature controller 12 disconnects the connection between the compressor 1 and the lithium battery 6, and the refrigeration system stops working. The temperature of the cooling water in the cooling water layer is always maintained between 2 and 4 degrees Celsius.

The timing control system is composed of a timing controller 14, which is used to control the operation of the intermittent cold compress system;

Timing controller 14 is arranged on the side of temperature controller 12, is connected with lithium battery 6 by two wires, two wires are connected with water pump 15, are connected with air pump 16 by other two wires.

Two switches are arranged on the timing controller 14, one is the master switch of the timing controller, and the other is the air pump outlet switch for tightening the strap, and the air pump outlet switch controls the connection between the air pump 16 and the outer heat insulation layer of the strap 8 The working situation of the gas outlet, when the switch is turned on, the air pump 16 starts to work, and the gas enters the outer insulation layer from the gas outlet, and after the gas is enough, the switch is manually closed.

Under the control of the timing controller 14, the air pump 16 enters the outer heat insulation layer of the bandage with air, so that the bandage binds the joint more tightly, and the bandage and the joint contact more fully. When the outer heat insulation layer is full of gas and When there is a certain pressure, manually close the air outlet switch that controls the connection with the outer heat insulation layer of the strap.

The intermittent cold compress system includes a water circulation system for cold compressing the injured part and an air pressurization system for intermittently isolating the water circulating system from the injured part, and is used to perform intermittent cold compress on the injured part by using the cooling water in the cooling water tank 22 .

The water circulation system is composed of a cooling water tank 22, a water pump 15, a strap for cold compress, and a water delivery pipe for sequentially connecting the water pump 15, the strap, and the cooling water tank 22, and is used for cold compressing the injured part;

The water pump 15 is a miniature water pump, and the water pump 15 is installed outside the water outlet of the cooling water tank 22. The water pump 15 is provided with a water inlet and a water outlet, and the water inlet of the water pump 15 is connected with the water outlet of the cooling water tank 22; There are two, arranged in the casing 7, including the first water delivery pipe and the second water delivery pipe.

The air pressurization system consists of an air pump 16, a strap, and an air pipe for connecting the strap and the air pump 16, and is used to intermittently isolate the water circulation system from the damaged part;

The air pump 16 is a miniature air pump, and the air pump 16 is arranged at the position close to the water pump 15 inside the casing 7, including an air inlet and two air outlets, wherein the two air outlets are the first air outlet and the second air outlet; There are two, arranged in the casing 7, including the first air delivery pipe and the second air delivery pipe.

Both the water pipe and the air pipe are plastic pipes with an inner diameter of 4mm and a length of 800mm. The water pipe and the air pipe are connected to the water inlet, air inlet and water outlet of the strap through the interface, and the interface can be manually connected and disconnected. The straps attached to the air and water pipes can be converted.

There are three straps arranged in the box body 7, namely the first strap 801 for covering the ankle, the second strap 802 for covering the wrist and the third strap 803 for covering the forehead. The three straps are not only shaped , other aspects such as material and structure are the same.

As shown in FIG. 6 , the strap is divided into three sections longitudinally, which are the working section A, the elastic section B and the joining section C. The working section A, the elastic section B and the joint section C are connected together in order to form a complete whole.

The working section A is made of soft material with good thermal conductivity, and there are three layers of gaps inside, of which the innermost layer in contact with the skin is the inner heat insulation layer, and the middle layer is the cooling water layer. The outermost layer is the outer insulation layer.

An air inlet or a water inlet is respectively arranged on the side of one end of each layer of the gap in the banding working section A, and an air outlet or water outlet is arranged on the side of the other end.

Specifically, the side of one end of the inner heat insulation layer is provided with an air inlet of the inner heat insulation layer, and the side of the other end is provided with an air outlet of the inner heat insulation layer; the side of one end of the cooling water layer is provided with a cooling The water inlet is provided on the side of the other end of the cooling water layer; the side of one end of the outer heat insulation layer is provided with the air inlet of the outer heat insulation layer, and the side of the other end is provided with Layer air outlet; further, the air outlet of the inner heat insulation layer is in a normally open state, and the air outlet of the outer heat insulation layer is equipped with a plug, which can be manually opened or sealed.

The inner diameter of the air inlet of the inner heat insulation layer is larger than the inner diameter of the air outlet of the inner heat insulation layer, the inner diameter of the water inlet of the cooling water layer is the same as that of the water outlet of the cooling water layer, and the inner diameter of the air inlet of the outer heat insulation layer is larger than the inner diameter of the air outlet of the outer heat insulation layer; preferred , the inner diameter of each air inlet or water inlet of the strapping working section A is set to 4mm; the inner diameter of the air outlet of the inner heat insulation layer is set to 1mm; the inner diameter of the water outlet of the cooling water layer is set to 4mm; the inner diameter of the air outlet of the outer heat insulation layer The inner diameter is set to 2mm.

Concretely, one end of the first air delivery pipe is connected with the inlet pipe of the inner heat insulation layer, and the other end is connected with the first air outlet of the air pump 16; one end of the second air delivery pipe is connected with the inlet pipe of the outer heat insulation layer, and the other end is connected with The second air outlet of the air pump 16 is connected; one end of the first water pipe is connected with the water inlet pipe of the cooling water layer, and the other end is connected with the water outlet of the water pump 15; one end of the second water pipe is connected with the water outlet of the cooling water layer, and the other end is connected with the water outlet of the water cooling layer. The water inlet of the cooling water tank 22 is connected.

The elastic section B is a rubber belt with a certain elasticity, and the joint section C is made of plastic, and a joint section button is arranged on it; preferably, the lengths of the elastic sections B of the three bandages along the longitudinal direction of the bandage are 30 mm, and the joint The length of section C is 30mm, the transverse width of the elastic section A of the first strap 801 and the second strap 802 is 80mm, and the transverse width of the third strap is 50mm; along the longitudinal direction of the strap, the first strap The length of the working section A of 801 is 360mm, the length of the working section A of the second strap 802 is 200mm, and the length of the working section A of the third strap 803 is 660mm.

A layer of elastic cloth with a certain thickness is wrapped on the surface of the strap, and three buttons of the working section are longitudinally arranged in the middle of the outer surface of the outer heat insulation layer of the working section A; preferably, the distance between adjacent buttons is 50 mm, and the three A button is used to fasten in combination with the button of the joint section C of the joint section.

After the switch is started, the water pump 15 is in the working state, and the cooling water is continuously delivered from the cooling water tank 22 to the inside of the cooling water layer through the water inlet end of the cooling water layer, and returns to the cooling water tank 22 from the water outlet end of the cooling water layer. Through this form, the cold energy is delivered to the human body; at the same time, the air pump 16 is in a stopped working state, and the gas in the inner insulation layer is squeezed out by the cooling water layer, which is in contact with the human body through two thin walls. The cold energy is delivered to the human body in the form; after working for 15 minutes, the timing controller 14 stops the water pump 15 to stop the delivery of cooling water; at the same time, the air pump 16 starts to work and sends air from the air inlet of the inner heat insulation layer into the inner heat insulation layer. layer, the air exits from the inner insulation layer and enters the environment.

Since the air intake flow rate of the inner heat insulation layer is relatively large and the diameter of the air outlet is small, the inner heat insulation layer is filled with gas and maintains a certain pressure after the air pump 16 works, and part of the cooling water in the cooling water layer is squeezed out, and the air is passed through the air. The flow of the inner heat insulation layer takes away the remaining cooling capacity. In this way, the straps are in contact with the human body at normal temperature; after 5 minutes, the water pump 15 starts working again, the air pump 16 stops working, and the cooling water enters the cooling water layer and puts the The air inside the inner insulation is squeezed out, bringing the cold to the human body. Through such a cyclical form, the bandages apply cold compresses to the human body for 15 minutes every 5 minutes at a temperature of 2 to 4 degrees Celsius, which can effectively prevent the human body from shivering, promote metabolism, and prevent aggravated injuries.

As shown in Fig. 7 and Fig. 8, the refrigerating system of the embodiment of the portable medical cold compress device of the present invention can also be: a semiconductor refrigerating sheet 17 arranged on the side wall of the refrigerating water tank, and a heat sink 18 ( A heat dissipation aluminum block 18), a semiconductor cooling system composed of a heat dissipation fan 19 in which the air suction end is in contact with the fin surface of the heat sink.

Preferably, the outer dimension of the semiconductor cooling chip 17 is 80mm*80mm*2mm, the rated voltage is 15V, the maximum current is 15A, and the rated cooling capacity is 135W.

Preferably, the heat dissipation aluminum block 18 is composed of an aluminum plate and fins. The length of the heat dissipation aluminum block 18 along the extending direction of the fins is 150mm, the width is 160mm, and the height is 24mm; the heat dissipation fan 19 has a rated voltage of 15V, a power of 10W, and a length of 150mm. , 150mm wide and 30mm high.

The thickness of the side wall heat insulation layer of the semiconducting cooling plate 17 and the cooling water tank 22 is the same, and a length and an opening identical to the semiconducting cooling plate 17 are set on the side wall. The side wall with the opening is in contact with the heat insulation layer, and the side with the ribs is facing outwards and is in contact with the heat dissipation fan 19. The semiconductor cooling plate 17 is fixed in the middle of the flat side of the heat dissipation aluminum block 18, and is placed on the side of the cooling water tank 22. Inside the opening of the wall heat insulation layer, wherein, the hot surface of the semiconductor refrigeration sheet 17 is in contact with the flat surface of the heat dissipation aluminum block 18, and a length and width are arranged on the side wall of the box body 7 at the position facing the heat dissipation aluminum block 18, which is the same as the heat dissipation fan 19. Size of the opening, cooling fan 19 is placed in the opening, the air outlet is towards the outside of the casing 7, and the suction end is in contact with the ribbed side of the heat dissipation aluminum block 18.

Further, the size of the lithium battery 20 in the embodiment of the present invention is 290mm*40mm*160mm, and the capacity is 24AH; the lithium battery 20 is connected to the temperature controller 12 through wires, and the temperature controller 12 is connected to the semiconductor refrigeration sheet 17 and the cooling fan 19 through wires respectively. connect.

When the thermocouple probe connected with the temperature controller 12 detects that the cooling water temperature in the cooling water tank 22 is higher than 4 degrees Celsius, the temperature controller 12 makes the lithium battery 20 be connected with the semiconductor refrigeration sheet 17 and the cooling fan 19 simultaneously, so that the semiconductor Refrigeration sheet 17 and radiator fan 19 start work simultaneously; Refrigerating sheet 17 and cooling fan 19 stop working simultaneously, make the cooling water in cooling water tank 22 the inside keep between 2 to 4 degrees Celsius in this way.

When using the portable medical cold compress device of the present invention, the air delivery pipe and the water delivery pipe are connected with one of the straps first, then the strap is tied to the injured joint or forehead, and the buttons on the joint section are joined to the joint according to the size of the joint. On the appropriate button on the outer surface of the working section, make the strap just in contact with the skin, then start the two switches of the temperature controller 12 and the timing controller 14 to make it in the power-on state, the refrigeration system and the water pump 15 start to work, and the water pump 15. The cooling water is continuously fed into the cooling water layer of the strap from the cooling water tank 22 through the water inlet, and then returns to the cooling water tank 22 from the water outlet; the timing controller 14 controls the strap to apply cold compresses to the joints for 15 minutes every 5 minutes, Make the joint get better treatment. After the treatment, turn off all the switches of the temperature controller 12 and the timing controller 14, disconnect the joints between the bandage and the air pipe and the water pipe, and discharge the gas in the bandage and cool it down. water.

As shown in Fig. 9 and Fig. 10, the portable refrigeration device according to the embodiment of the present invention includes: a portable box body 7 (casing body 7), which is arranged in the box body 7 for accommodating a cooling chamber 28 for storing items to be refrigerated; and setting The refrigeration system used to refrigerate the refrigeration chamber 28 in the box body 7, and the control system connected to the refrigeration system for controlling the refrigeration system to perform refrigeration; and arranged in the box body 7 and the rechargeable battery used for power supply that is connected with the refrigeration system and the control system; the charging interface 26 connected with the rechargeable battery; the refrigeration chamber 28 and the refrigeration water tank 22 of the above-mentioned portable medical cold compress device same.

The refrigeration system is a closed system formed by sequentially connecting the compressor 1, the condenser 2, the dry filter 3, the capillary tube 4, and the evaporator 5 arranged inside the refrigeration chamber 28; The cooling system of the device is the same; the corresponding rechargeable battery 30 is a lithium battery, specifically the same as the lithium battery 6 of the portable medical cold compress device described above.

The refrigeration system can also be composed of a semiconductor cooling fin 17 arranged on the outer wall of the cooling chamber 28, a heat sink 18 in contact with the hot surface of the semiconductor cooling fin, and a cooling fan 19 whose suction end is in contact with the fin surface of the cooling fin. The semiconductor refrigeration system is the same as the semiconductor refrigeration system described in the above portable medical cold compress device; the corresponding rechargeable battery 32 is a lithium battery, specifically the same as the lithium battery 20 of the portable medical cold compress device described above.

The control system includes a temperature control system and a timing control system for controlling the temperature of the cooling water; the temperature control system includes a temperature controller 12, a thermocouple probe connected to the temperature controller arranged in the cooling chamber, the The timing control system includes a timing controller 14; specifically, it is the same as the control system of the portable medical cold compress device described above.

The compressor 1 is a 14-24-000X miniature compressor with a rated DC voltage of 24V and a rated power of 120W, specifically the same as the compressor 1 of the portable medical cold compress device described above.

Therefore, the portable refrigerating device of the embodiment of the present invention can be used as a mobile micro-refrigerator, which can refrigerate beverages in the refrigerating chamber 28, and can provide ice-cold beverages during exercise.

In summary, a portable refrigeration device and a portable medical cold compress device provided by the present invention are small in size and easy to carry. The portable refrigeration device can provide cold drinks conveniently. The cold compress system can carry out timely intermittent cold compress on the injured part, which greatly improves the effect of cold compress. The intermittent cold compress system includes three straps for different cold compress parts, which can be freely switched according to needs during use, which is flexible and convenient.

It should be understood that the application of the present invention is not limited to the above examples, and those skilled in the art can make improvements or transformations according to the above descriptions, and all these improvements and transformations should belong to the protection scope of the appended claims of the present invention.

Claims (4)

1. A portable medical cold compress device, comprising: The box, the cooling water tank installed in the box, the cooling system installed in the box for cooling the cooling water in the cooling water tank, and the intermittent cooling system for using the cooling water in the cooling water tank to perform intermittent cold compresses on the damaged parts Cold compress system, a control system for controlling the operation of the refrigeration system and the intermittent cold compress system, and a built-in power supply for the refrigeration system and the intermittent cold compress system; The intermittent cold compress system includes a water circulation system for cold compressing the injured part and an air pressurization system for intermittently isolating the water circulating system from the injured part; The water circulation system includes a cooling water tank, a water pump arranged at the water outlet of the cooling water tank, a strap for cold compress, and a water pipe for sequentially connecting the water pump, the strap, and the cooling water tank, The air pressurization system includes an air pump next to the water pump inside the box, the strap, and an air pipe for connecting the strap and the air pump; The strap includes a working section, an elastic section and an engaging section, The working section, the elastic section and the engaging section are sequentially connected together to form a whole, The engaging section is provided with an engaging section button, and the working section is provided with at least one working section button for combining with the engaging section button; The working section includes an inner heat insulation layer arranged on the innermost side for contact with the skin, a cooling water layer arranged in the middle and an outer heat insulation layer arranged on the outermost side, The side of one end of the inner heat insulation layer is provided with an air inlet of the inner heat insulation layer, and the side of the other end is provided with an air outlet of the inner heat insulation layer, and the air outlet of the inner heat insulation layer is in a normally open state. The side of one end of the cooling water layer is provided with a cooling water layer water inlet, and the side of the other end is provided with a cooling water layer water outlet, The side of one end of the outer heat insulation layer is provided with an air inlet of the outer heat insulation layer, and the side of the other end is provided with an air outlet of the outer heat insulation layer. Open or seal the mouth plug of the air outlet of the outer heat insulation layer; The inner diameter of the air inlet of the inner heat insulation layer is larger than the inner diameter of the air outlet of the inner heat insulation layer, the inner diameter of the water inlet of the cooling water layer is the same as that of the water outlet of the cooling water layer, and the inner diameter of the air inlet of the outer heat insulation layer is larger than The inner diameter of the air outlet of the outer heat insulation layer. 2. The portable medical cold compress device according to claim 1, characterized in that, The control system includes a temperature control system for controlling the cooling water temperature and a timing control system for controlling the operation of the intermittent cold compress system; The temperature control system includes a temperature controller, a thermocouple probe connected to the temperature controller arranged in the cooling water tank, and the timing control system includes a timing controller, The timing controller is provided with a timing controller main switch and an air pump outlet switch. 3. The portable medical cold compress device according to claim 1, characterized in that, The refrigerating system is a closed system formed by sequentially connecting a compressor, a condenser, a dry filter, a capillary tube, and an evaporator arranged inside the refrigerating water tank, or a semiconductor refrigerating sheet arranged on the side wall of the refrigerating water tank, and The semiconductor refrigeration system is composed of the heat sink in contact with the hot surface of the semiconductor refrigeration sheet, the suction end and the heat dissipation fan in contact with the fin surface of the heat sink; The built-in power supply is a lithium battery. 4. The portable medical cold compress device according to claim 1, characterized in that, The water delivery pipe includes a first water delivery pipe and a second water delivery pipe; The air delivery pipe includes a first air delivery pipe and a second air delivery pipe; The air pump includes a first air outlet and a second air outlet; One end of the first air pipe is connected to the air inlet of the inner insulation layer, and the other end is connected to the first air outlet; One end of the second air pipe is connected to the air inlet of the outer heat insulation layer, and the other end is connected to the second air outlet; One end of the first water delivery pipe is connected to the water inlet of the cooling water layer, and the other end is connected to the water outlet of the water pump; One end of the second water delivery pipe is connected to the water outlet of the cooling water layer, and the other end is connected to the water inlet of the cooling water tank; The straps include a first strap for ankles, a second strap for wrists and a third strap for forehead.