Infusion heating device

Abstract

The invention discloses an infusion heating device. The infusion heating device comprises an upper shell, a lower shell, a heating module, a metal heating substrate and two metal grooves. Two heating grooves are formed in the outer side of the upper shell, extend to the second end of the upper shell from the first end of the upper shell and are used for containing infusion tubes. The upper part area of the heating groove is hollowed out to form a first hollowed-out area; the two metal grooves are fixed in the first hollow areas of the two heating grooves respectively, and the metal grooves are located on the inner side of the upper shell; the groove face of the metal groove is flush with the groove face of the heating groove, the bottom of the metal groove is fixed to the side, close to the upper shell, of the metal heating substrate, the heating module is fixed to the side, away from the upper shell, of the metal substrate, and the heating module is used for heating the metal groove and the metal heating substrate so as to heat the infusion tube. The heating efficiency of the infusion tube can be improved, and the infusion tube heating device has the advantages of being convenient to install, simple in structure and light in weight.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of heating equipment, and in particular to an infusion heating device. Background Art

[0002] When patients are receiving infusions, the medicine may be stored at low temperatures for a long time, which may cause the patient to feel uncomfortable during the infusion. Relevant technicians have developed a device to heat the infusion tube to improve the patient's infusion experience.

[0003] However, existing heating devices require an infusion tube to be placed inside the heating device or the liquid medicine to be injected into the heating device to heat the liquid medicine, which is inconvenient to install and use, and has low heating efficiency. Furthermore, existing heating devices are complex in structure and heavy, resulting in a limited range of applications. Summary of the Invention

[0004] The present invention provides an infusion heating device to improve the heating efficiency of an infusion tube, and has the advantages of easy installation, simple structure and light weight, which is conducive to the popularization of infusion heating devices.

[0005] In a first aspect, an embodiment of the present invention provides an infusion heating device, the infusion heating device comprising an upper shell, a lower shell, a heating module, a metal heating substrate, and two metal grooves;

[0006] The inner side of the lower shell is fixedly connected to the inner side of the upper shell, and the heating module, the metal heating substrate and the two metal grooves are located between the inner side of the lower shell and the inner side of the upper shell;

[0007] Two heating grooves are provided on the outer side of the upper shell, and the heating grooves extend from the first end of the upper shell to the second end of the upper shell, and the heating grooves are used to place the infusion tube; wherein the first end of the upper shell and the second end of the upper shell are opposite ends;

[0008] The upper portion of the heating groove is hollowed out to form a first hollow area; the two metal grooves are respectively fixed in the first hollow areas of the two heating grooves, and the metal grooves are both located on the inner side of the upper shell; the groove surface of the metal groove is flush with the groove surface of the heating groove, and the metal groove is used to place the infusion tube;

[0009] The bottom of the metal groove is fixed on the side of the metal heating substrate close to the upper shell, and the heating module is fixed on the side of the metal substrate away from the upper shell. The heating module is used to heat the metal groove and the metal heating substrate to heat the infusion tube.

[0010] Optionally, the heating module includes multiple resistors and a main board;

[0011] The plurality of resistors are fixed on a side of the metal heating substrate away from the upper shell; the main board is located between the inner side of the lower shell and the inner side of the upper shell;

[0012] The mainboard is connected to the plurality of resistors. The mainboard is used to supply power to the plurality of resistors. The resistors are used to heat the metal heating substrate and the metal grooves.

[0013] Optionally, the heating module further includes a temperature sensor, and the temperature sensor is arranged on the metal heating substrate;

[0014] The mainboard includes a main control module, the temperature sensor is connected to the main control module, and the temperature sensor is used to detect the temperature of the metal heating substrate and send the temperature of the metal heating substrate to the mainboard;

[0015] The main control module is used to stop supplying power to the resistor when the temperature of the metal heating substrate is greater than a first warning temperature.

[0016] Optionally, the mainboard further includes a temperature switch;

[0017] The temperature sensor is also connected to the temperature switch, and the temperature switch is arranged on the connection line between the main control module and the plurality of resistors;

[0018] The temperature sensor is also used to send the temperature of the metal heating substrate to the temperature switch;

[0019] The temperature switch is used to disconnect the main control module from the plurality of resistors when the temperature of the metal heating substrate is greater than a second warning temperature; wherein the second warning temperature is greater than the first warning temperature.

[0020] Optionally, the main board also includes a switching transistor, and the main control module is connected to multiple resistors through the switching transistor. The main control module is specifically used to control the conduction of the switching transistor through PID to control the metal heating substrate to maintain a preset heating temperature according to the temperature of the metal heating substrate.

[0021] Optionally, the mainboard is further provided with a display screen and operation buttons;

[0022] The operation button is used to control the preset heating temperature, and the display screen is used to display the temperature of the metal heating substrate and the preset heating temperature;

[0023] A second hollow area is provided on the lower shell, and the second hollow area corresponds to the position of the display screen and the operation button. The second hollow area is used to expose and accommodate the display screen and the operation button.

[0024] Optionally, the temperature sensor is an NTC temperature sensor, and the mainboard is provided with a Type-c power input terminal, and the Type-c power input terminal is used to power the mainboard.

[0025] Optionally, a preset distance is provided between two adjacent heating grooves;

[0026] The plurality of resistors form two rows of resistors, each of which is disposed corresponding to one of the metal grooves; adjacent resistor rows are spaced by a predetermined distance, and the length of the resistor rows is less than or equal to the length of the metal groove;

[0027] A metal hollow area is provided on the metal heating substrate, and the metal hollow area is located between adjacent resistor rows.

[0028] Optionally, the metal heating substrate is an aluminum substrate, and the metal groove is a U-shaped aluminum part;

[0029] The metal heating substrate and the metal groove are connected by thermal conductive silicone grease or thermal conductive glue.

[0030] Optionally, the inner side of the lower shell and the inner side of the upper shell are fixedly connected by screws.

[0031] The present invention provides an infusion heating device, which includes an upper shell, a lower shell, a heating module, a metal heating substrate and two metal grooves; the inner side of the lower shell is fixedly connected to the inner side of the upper shell, and the metal heating substrate and the two metal grooves are located between the inner side of the lower shell and the inner side of the upper shell; two heating grooves are arranged on the outer side of the upper shell, and the heating grooves extend from the first end of the upper shell to the second end of the upper shell, so that the infusion tube can be directly placed in the heating grooves on the outer side of the upper shell, thereby facilitating the installation of the infusion heating device, and since one infusion tube can pass through the two heating grooves, the heating efficiency of the infusion tube can be improved. The upper part of the heating groove is hollowed out to form a first hollow area; the two metal grooves are respectively fixed in the first hollow areas of the two heating grooves, and the metal grooves are both located on the inner side of the upper shell; the groove surface of the metal groove is flush with the groove surface of the heating groove, that is, the groove surface of the metal groove can be exposed, so the infusion tube can be placed in the metal groove and the heating groove, which is convenient for directly heating the infusion tube; the bottom of the metal groove is fixed to the side of the metal heating substrate close to the upper shell, and the heating module is fixed to the side of the metal substrate away from the upper shell. The metal groove and the metal heating substrate are heated by the heating module to heat the infusion tube. The overall structure of the infusion heating device of the present invention is simple, and fewer metal parts are used, which can reduce weight and production costs, and is conducive to the popularization of infusion heating devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic structural diagram of an infusion heating device provided by an embodiment of the present invention;

[0033] Figure 2 A schematic structural diagram of a heating module and a metal heating substrate provided in an embodiment of the present invention;

[0034] Figure 3 A schematic structural diagram of another heating module and a metal heating substrate provided in an embodiment of the present invention;

[0035] Figure 4 A schematic structural diagram of another heating module and a metal heating substrate provided in an embodiment of the present invention;

[0036] Figure 5 A schematic structural diagram of another infusion heating device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0038] The embodiment of the present invention provides an infusion heating device, Figure 1 A schematic structural diagram of an infusion heating device provided by an embodiment of the present invention is shown in FIG. Figure 1 As shown, the infusion heating device includes an upper shell 10 , a lower shell 20 , a heating module 30 , a metal heating substrate 40 and two metal grooves 50 .

[0039] The inner side of the lower shell 20 is fixedly connected to the inner side of the upper shell 10, and the heating module 30, the metal heating substrate 40 and the two metal grooves 50 are located between the inner side of the lower shell 20 and the inner side of the upper shell 10; two heating grooves 101 are set on the outer side of the upper shell 10, and the heating grooves 101 extend from the first end of the upper shell 10 to the second end of the upper shell 10, and the heating grooves 101 are used to place the infusion tube; wherein, the first end of the upper shell 10 and the second end of the upper shell 20 are opposite ends.

[0040] Part of the upper area of the heating groove 101 is hollowed out to form a first hollow area 1011; the two metal grooves 50 are respectively fixed in the first hollow areas 1011 of the two heating grooves 101, and the metal grooves 50 are both located on the inner side of the upper shell 10; the groove surface of the metal groove 50 is flush with the groove surface of the heating groove 101, and the metal groove 50 is used to place the infusion tube; the bottom of the metal groove 50 is fixed on the side of the metal heating substrate 40 close to the upper shell 10, and the heating module 30 is fixed on the side of the metal substrate 50 away from the upper shell 10, and the heating module 30 is used to heat the metal groove 50 and the metal heating substrate 40 to heat the infusion tube.

[0041] The infusion heating device includes two metal grooves 50, which are respectively placed in the first hollow areas 1011 of the two heating grooves 101. The number of the metal grooves 50 corresponds to the number of the heating grooves 101. Figure 1 As shown, the number of the metal grooves 50 and the heating grooves 101 are both two. The number of the metal grooves 50 and the heating grooves 101 can also be 3 or more ( Figure 1 (not shown in the figure), so that the infusion tube in the heating groove 101 is more tortuous to improve the heating efficiency. The upper shell 10 and the lower shell 20 can be made of plastic material to reduce the weight and cost of the infusion heating device. The space formed between the inner side of the lower shell 20 and the inner side of the upper shell 10 can accommodate the heating module 30, the metal heating substrate 40 and the two metal grooves 50. The heating module 30 can use a heat source that can increase the temperature of the metal heating substrate 40 as a heating device. For example, the heating device can be a heating resistor, a PTC ceramic heating element, a resistance wire or other device. The heating module 30 can heat the metal heating substrate 40, and the metal heating substrate 40 can transfer heat evenly to the metal groove 50 to heat the infusion tube.

[0042] Specifically, two heating grooves 101 are provided on the outer side of the upper shell 10, and the heating grooves 101 extend from the first end of the upper shell 10 to the second end of the upper shell 10. When the infusion heating device is used to heat the infusion tube, the infusion tube can be directly placed in the heating grooves 101 on the outer side of the upper shell 10. Compared with the solution of placing the infusion tube in the heating device in the prior art, the infusion heating device of the embodiment of the present invention can improve the convenience during use and facilitate the installation of the infusion tube in the infusion heating device. Moreover, since one infusion tube can pass through two heating grooves 101, the heating efficiency of the infusion tube can be improved when heating a curved infusion tube. In an exemplary embodiment, the number of the metal grooves 50 and the heating grooves 101 are both two. When one infusion tube passes through the two heating grooves 101, the infusion tube in the heating grooves 101 will be arranged in a U shape. Compared with directly heating a straight infusion tube alone, the heating efficiency of the infusion tube can be improved.

[0043] In addition, the upper portion of the heating groove 101 is hollowed out to form a first hollowed-out area 1011. The two metal grooves 50 are respectively fixed in the first hollowed-out areas 1011 of the two heating grooves 101, and the metal grooves 50 are both located on the inner side of the upper shell 10, so that the groove surface of the metal grooves 50 can be exposed. The groove surface of the metal groove 50 is flush with the groove surface of the heating groove 101. Therefore, when in use, there is no need to open the lower shell 20 or the upper shell 10. The infusion tube can be directly placed in the metal groove 50 and the heating groove 10. The metal groove 50 in the heating groove 10 directly heats the infusion tube, making the use process simple. The bottom of the metal groove 50 is fixed to the side of the metal heating substrate 40 close to the upper shell 10, and the heating module 30 is fixed to the side of the metal substrate 50 away from the upper shell 10. The heating module 30 is used to heat the metal groove 50 and the metal heating substrate 40. When in use, the metal heating substrate 40 is heated by the heating module 30, and the metal heating substrate 40 transfers heat evenly to the metal groove 50. The metal groove 50 heats the infusion tube. The groove surface of the metal groove 50 wraps the infusion tube, which can increase the contact surface of the heating and increase the heating efficiency. In addition, the infusion heating device of the embodiment of the present invention is composed of only the upper shell 10, the lower shell 20, the heating module 30, the metal heating substrate 40 and the two metal grooves 50. The overall structure is simple and uses fewer metal parts, which can reduce the weight and production cost of the infusion heating device, which is conducive to the wide popularization of the infusion heating device.

[0044] An embodiment of the present invention provides an infusion heating device, which includes an upper shell, a lower shell, a heating module, a metal heating substrate and two metal grooves; the inner side of the lower shell is fixedly connected to the inner side of the upper shell, and the metal heating substrate and the two metal grooves are located between the inner side of the lower shell and the inner side of the upper shell; two heating grooves are arranged on the outer side of the upper shell, and the heating grooves extend from the first end of the upper shell to the second end of the upper shell, so that the infusion tube can be directly placed in the heating grooves on the outer side of the upper shell, thereby facilitating the installation of the infusion heating device, and since one infusion tube can pass through the two heating grooves, the heating efficiency of the infusion tube can be improved. The upper part of the heating groove is hollowed out to form a first hollow area; the two metal grooves are respectively fixed in the first hollow areas of the two heating grooves, and the metal grooves are both located on the inner side of the upper shell; the groove surface of the metal groove is flush with the groove surface of the heating groove, that is, the groove surface of the metal groove can be exposed, so the infusion tube can be placed in the metal groove and the heating groove, which is convenient for directly heating the infusion tube; the bottom of the metal groove is fixed to the side of the metal heating substrate close to the upper shell, and the heating module is fixed to the side of the metal substrate away from the upper shell. The metal groove and the metal heating substrate are heated by the heating module to heat the infusion tube. The overall structure of the infusion heating device of the embodiment of the present invention is simple, and fewer metal parts are used, which can reduce weight and production costs, and is conducive to the popularization of the infusion heating device.

[0045] Figure 2 A schematic diagram of the structure of the heating module and the metal heating substrate provided in an embodiment of the present invention is shown in FIG. Figure 2 As shown, in an embodiment of the present invention, the heating module 30 includes a plurality of resistors R and a main board 301; the plurality of resistors R are fixed on a side of the metal heating substrate 40 away from the upper shell 10; the main board 301 is located between the inner side of the lower shell 20 and the inner side of the upper shell 10; the main board 301 is connected to the plurality of resistors R, and the main board 301 is used to supply power to the plurality of resistors R, and the resistors R are used to heat the metal heating substrate 40 and the metal groove 50.

[0046] Specifically, the heating module 30 includes multiple resistors R and a main board 301. The main board 301 can supply power to the multiple resistors R and control the operation of the multiple resistors R. Optionally, the main board 301 is a single-chip microcomputer. The resistors R are fixed to the side of the metal heating substrate 40 away from the upper shell 10, that is, the resistors R and the metal groove 50 are respectively fixed on both sides of the metal heating substrate 40, and the metal heating substrate 40 and the metal groove 50 are heated by the multiple resistors R. The heating device in the prior art uses a PTC thermistor (Positive Temperature Coefficient, PTC thermistor) as a heat source to conduct heat to a flat aluminum extrusion. The contact surface of the conduit is small, the heating efficiency is low, and the heat loss is large. In the embodiment of the present invention, the metal heating substrate 40 and the metal groove 50 are heated by multiple resistors R. The multiple resistors R are attached to the metal heating substrate 40, which can increase the contact area, improve the heating efficiency, and reduce the heat loss during the heating process.

[0047] Continue to refer Figure 2 In order to achieve stable temperature control of the infusion heating device, optionally, the heating module 30 further includes a temperature sensor 302 , which is disposed on the metal heating substrate 40 .

[0048] Figure 3 A structural diagram of another heating module and a metal heating substrate provided in an embodiment of the present invention is shown in FIG. Figure 3 As shown, the main board 301 includes a main control module 3011, and the temperature sensor 302 is connected to the main control module 3011. The temperature sensor 302 is used to detect the temperature of the metal heating substrate 40 and send the temperature of the metal heating substrate 40 to the main control module 3011; the main control module 3011 is used to stop supplying power to the resistor R when the temperature of the metal heating substrate 40 is greater than the first warning temperature.

[0049] Among them, the temperature sensor 302 can be arranged on the metal heating substrate 40 and on the same side as the resistor R. The temperature sensor 302 can also be arranged on the metal heating substrate 40 and on the same side as the metal groove 50. The temperature sensor 302 can also be arranged at other positions on the metal heating substrate 40 to achieve accurate detection of the temperature of the metal heating substrate 40.

[0050] Specifically, the temperature sensor 302 is connected to the main control module 3011. When the infusion heating device is operating, the temperature sensor 302 can detect the temperature of the metal heating substrate 40 in real time and send the temperature of the metal heating substrate 40 to the main control module 3011. The main control module 3011 is used to stop supplying power to the resistor R when the temperature of the metal heating substrate 40 is greater than the first warning temperature, thereby achieving stable temperature control and improving the safety of the heating process. After the main control module 3011 stops supplying power to the resistor R, the main control module 3011 can also resume supplying power to the resistor R when the difference between the temperature of the metal heating substrate 40 and the first warning temperature is greater than or equal to a preset value. The resistor R continues to heat the metal heating substrate 40, thereby further achieving temperature control. In addition, the main control module 3011 can also issue an alarm when the temperature of the metal heating substrate 40 is greater than the alarm temperature to remind the infusion personnel that the current heating temperature is too high, thereby improving the safety of the infusion process.

[0051] In order to further improve the safety of the infusion process and ensure the safety of users, continue to refer to Figure 3 Optionally, the main board 301 also includes a temperature switch 3012; the temperature sensor 302 is also connected to the temperature switch 3012, and the temperature switch 3012 is arranged on the connecting line between the main control module 3011 and the multiple resistors R; the temperature sensor 302 is also used to send the temperature of the metal heating substrate 40 to the temperature switch 3012; the temperature switch 3012 is used to disconnect the connection between the main control module 3011 and the multiple resistors R when the temperature of the metal heating substrate 40 is greater than the second warning temperature; wherein the second warning temperature is greater than the first warning temperature.

[0052] Specifically, a temperature switch 3012 is provided on the main board 301, and the temperature sensor 302 is directly connected to the temperature switch 3012, so that the temperature of the metal heating substrate 40 can be transmitted to the temperature switch 3012. The temperature switch 3012 can be provided on the connection line between the main control module 3011 and the plurality of resistors R. During the operation of the infusion heating device, the main control module 3011 may experience a malfunction such as freezing or failure. In this case, the main control module 3011 cannot achieve stable temperature control of the metal heating substrate 40, and the temperature of the metal heating substrate 40 will continue to rise. When the temperature of the metal heating substrate 40 exceeds a second warning temperature, which can be 72 degrees Celsius, the temperature switch 3012 can disconnect the main control module 3011 from the plurality of resistors R, causing the main control module 3011 to stop supplying power to the resistors R, and the resistors R stop heating the metal heating substrate 40, thereby further improving the safety of the infusion process and avoiding unsafe incidents. The temperature switch 3012 and the main control module 3011 together provide dual protection during the heating process.

[0053] Continue to refer Figure 3Optionally, the main board 301 also includes a switching transistor 3013, and the main control module 3011 is connected to multiple resistors R through the switching transistor 3013. The main control module 3011 is specifically used to control the conduction of the switching transistor 3013 through PID to control the metal heating substrate 40 to maintain a preset heating temperature according to the temperature of the metal heating substrate 40.

[0054] Specifically, a switching transistor 3013 is provided on the main board 301, and the main control module 3011 is connected to multiple resistors R through the switching transistor 3013. The main control module 3011 can control the conduction of the switching transistor 3013 through PID. The switching transistor 3013 is intermittently turned on and off, so that the resistor R intermittently heats the metal heating substrate 40, so as to control the metal heating substrate 40 to maintain a preset heating temperature according to the temperature of the metal heating substrate 40, perform thermal balance control, and achieve stable control of the heating temperature of the metal heating substrate 40.

[0055] Figure 4 A schematic structural diagram of another heating module and a metal heating substrate provided in an embodiment of the present invention. Figure 5 A schematic diagram of the structure of another infusion heating device provided in an embodiment of the present invention is shown in FIG. Figure 4 and Figure 5 As shown, optionally, a display screen 3016 and operation buttons 3015 are also provided on the main board 301 .

[0056] The operation button 3015 is used to control the preset heating temperature, and the display screen 3016 is used to display the temperature of the metal heating substrate 40 and the preset heating temperature; a second hollow area 201 is provided on the lower shell 20, and the second hollow area 201 corresponds to the position of the display screen 3016 and the operation button 3015. The second hollow area 201 is used to expose and accommodate the display screen 3016 and the operation button 3015.

[0057] Specifically, there can be multiple second hollow areas 201 and multiple operation buttons 3015. The multiple second hollow areas 201 can respectively accommodate the display screen 3016 and the operation button 3015. The operation button 3015 can control the preset heating temperature, and the display screen 3016 can display the temperature of the metal heating substrate 40 and the preset heating temperature, so that the user can operate the infusion heating device and interact with the human-computer interaction.

[0058] Optional, reference Figure 2-Figure 4 The temperature sensor 302 is an NTC temperature sensor. The mainboard 301 is provided with a Type-c power input terminal 3014, which is used to supply power to the mainboard 301.

[0059] Specifically, the Type-C power input terminal 3014 is connected to the main control module 3011 and supplies power to various modules on the motherboard 301 through the main control module 3011. The prior art uses a 220V AC high-voltage input to drive heating, which poses a serious safety hazard. In this embodiment of the present invention, the input voltage of the Type-C power input terminal 3014 is 5V, ensuring a safe low voltage and improving safety.

[0060] The temperature sensor 302 is an NTC temperature sensor (Negative Temperature Coefficient Sensor, NTC temperature sensor). The NTC temperature sensor has a small size and can reduce the overall size of the infusion heating device. The NTC temperature sensor can detect the temperature of the metal heating substrate 40 and send the temperature of the metal heating substrate 40 to the main control module 3011. When the temperature of the metal heating substrate 40 is greater than the first warning temperature, the main control module 3011 stops supplying power to the resistor R, thereby achieving temperature control of the metal heating substrate 40, thereby improving the stability of the heat source.

[0061] Optional, such as Figure 5 As shown, two adjacent heating grooves 50 are spaced apart by a preset distance d.

[0062] refer to Figure 2-Figure 4 , multiple resistors R form two rows of resistors, each resistor row is arranged corresponding to a metal groove 50; adjacent resistor rows are separated by a preset distance d, and the length of the resistor row is less than or equal to the length of the metal groove 50; a metal hollow area 401 is provided on the metal heating substrate 40, and the metal hollow area 401 is located between adjacent resistor rows.

[0063] Specifically, the interval between two adjacent heating grooves 50 is a preset distance d, the interval between adjacent metal grooves 50 is also a preset distance d, and the interval between adjacent resistor rows is also a preset distance, that is, each resistor row is set corresponding to a metal groove 50, and the length of the resistor row is set to be less than or equal to the length of the metal groove 50, thereby achieving corresponding heating of the metal groove 50, improving heating efficiency, and reducing heat loss. Preferably, reference Figure 1-5 , multiple resistors R form two rows of resistors, and the number of metal grooves 50 and heating grooves 50 is two.

[0064] In the embodiment of the present invention, a metal hollow area 401 is provided on the metal heating substrate 40. The metal hollow area 401 is located between adjacent resistor rows, and the resistor rows are located on both sides of the metal hollow area 401. The setting of the metal hollow area 40 in the metal heating substrate 40 eliminates the PTC and the special-shaped and bulky aluminum profiles, greatly reduces the weight of the product itself and improves the heating efficiency, and the overall cost of the structure will also be greatly reduced.

[0065] Optional, reference Figure 5 The metal heating substrate 40 is an aluminum substrate, and the metal groove 50 is a U-shaped aluminum part; the metal heating substrate 40 and the metal groove 50 are connected by thermal grease or thermal glue.

[0066] Specifically, both the metal heating base 40 and the metal groove 50 are made of aluminum, which reduces overall weight. The metal groove 50 is a U-shaped aluminum piece that secures the infusion tube while enclosing it on three sides, increasing the contact surface during heating and boosting heating efficiency. The metal heating base 40 and the metal groove 50 are connected via thermal grease or adhesive, thereby reducing thermal resistance between the two and increasing heat transfer efficiency.

[0067] In an embodiment of the present invention, an infusion tube fixing structure can also be provided on the upper shell 10. When infusion tubes of different sizes are placed in the metal heating substrate 40 and the metal groove 50, the infusion tube fixing structure can be used to fix the infusion tubes so as to adapt to infusion tubes of different sizes.

[0068] Optional, reference Figure 5 The inner side of the lower shell 20 and the inner side of the upper shell 10 are fixedly connected by screws.

[0069] Specifically, the inner side of the lower shell 20 is fixedly connected to the inner side of the upper shell 10 by screws, and the metal heating substrate 40 can also be fixed to the inner side of the upper shell 10 by screws.

[0070] The infusion heating device in the embodiment of the present invention combines structure, hardware design and software control to achieve a safe and efficient heating function. In order to simplify the design and improve the heating efficiency, the infusion heating device in the embodiment of the present invention adopts a combination of resistors, temperature switches, and aluminum substrates instead of PTC as a heat source, uses temperature sensors to achieve temperature control, and removes PTC and special-shaped bulky aluminum profiles, which greatly reduces the weight of the infusion heating device itself and improves the heating efficiency. The overall cost of the entire solution structure will also be reduced. The entire design adopts a resistor heating function and can adapt to infusion tubes of different sizes. In addition, using an NTC temperature sensor as a temperature control sensor allows the mainboard to obtain temperature for temperature control, thereby improving the stability of the heat source, avoiding safety hazards such as high pressure and overheating, protecting human health, and improving safety in use.

[0071] An embodiment of the present invention provides an infusion heating device, which includes an upper shell, a lower shell, a heating module, a metal heating substrate and two metal grooves. When in use, the infusion tube can be directly placed in the heating groove on the outside of the upper shell, thereby facilitating the installation of the infusion heating device. Moreover, since one infusion tube can pass through the two heating grooves, the heating efficiency of the infusion tube can be improved. Moreover, the overall structure of the infusion heating device is simple, and fewer metal parts are used, which can reduce weight and production costs, and is conducive to the large-scale application of the infusion heating device.

[0072] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments, and substitutions are possible for those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. An infusion heating device, characterized in that: The infusion heating device comprises an upper shell, a lower shell, a heating module, a metal heating substrate and two metal grooves; The inner side of the lower shell is fixedly connected to the inner side of the upper shell, and the heating module, the metal heating substrate and the two metal grooves are all located between the inner side of the lower shell and the inner side of the upper shell; Two heating grooves are provided on the outer side of the upper shell, and the heating grooves extend from the first end of the upper shell to the second end of the upper shell, and the heating grooves are used to place the infusion tube; wherein the first end of the upper shell and the second end of the upper shell are opposite ends; The upper portion of the heating groove is hollowed out to form a first hollow area; the two metal grooves are respectively fixed in the first hollow areas of the two heating grooves, and the metal grooves are both located on the inner side of the upper shell; the groove surface of the metal groove is flush with the groove surface of the heating groove, and the metal groove is used to place the infusion tube; The bottom of the metal groove is fixed on the side of the metal heating substrate close to the upper shell, and the heating module is fixed on the side of the metal substrate away from the upper shell. The heating module is used to heat the metal groove and the metal heating substrate to heat the infusion tube.

2. The infusion heating device according to claim 1, characterized in that: The heating module includes multiple resistors and a main board; The plurality of resistors are fixed on a side of the metal heating substrate away from the upper shell; the main board is located between the inner side of the lower shell and the inner side of the upper shell; The mainboard is connected to the plurality of resistors. The mainboard is used to supply power to the plurality of resistors. The resistors are used to heat the metal heating substrate and the metal grooves.

3. The infusion heating device according to claim 2, characterized in that: The heating module further includes a temperature sensor, which is arranged on the metal heating substrate; The mainboard includes a main control module, the temperature sensor is connected to the main control module, and the temperature sensor is used to detect the temperature of the metal heating substrate and send the temperature of the metal heating substrate to the mainboard; The main control module is used to stop supplying power to the resistor when the temperature of the metal heating substrate is greater than a first warning temperature.

4. The infusion heating device according to claim 3, characterized in that: The mainboard also includes a temperature switch; The temperature sensor is also connected to the temperature switch, and the temperature switch is arranged on the connection line between the main control module and the plurality of resistors; The temperature sensor is also used to send the temperature of the metal heating substrate to the temperature switch; The temperature switch is used to disconnect the main control module from the plurality of resistors when the temperature of the metal heating substrate is greater than a second warning temperature; wherein the second warning temperature is greater than the first warning temperature.

5. The infusion heating device according to claim 3, characterized in that: The main board also includes a switching transistor, and the main control module is connected to the plurality of resistors through the switching transistor. The main control module is specifically configured to control the conduction of the switching transistor through PID to control the metal heating substrate to maintain a preset heating temperature according to the temperature of the metal heating substrate.

6. The infusion heating device according to claim 5, characterized in that: The mainboard is also provided with a display screen and operation buttons; The operation button is used to control the preset heating temperature, and the display screen is used to display the temperature of the metal heating substrate and the preset heating temperature; A second hollow area is provided on the lower shell, and the second hollow area corresponds to the position of the display screen and the operation button. The second hollow area is used to expose and accommodate the display screen and the operation button.

7. The infusion heating device according to claim 3, characterized in that: The temperature sensor is an NTC temperature sensor. The mainboard is provided with a Type-c power input terminal, and the Type-c power input terminal is used to supply power to the mainboard.

8. The infusion heating device according to claim 2, characterized in that: There is a preset distance between two adjacent heating grooves; The plurality of resistors form two rows of resistors, each of which is disposed corresponding to one of the metal grooves; adjacent resistor rows are spaced by a predetermined distance, and the length of the resistor rows is less than or equal to the length of the metal groove; A metal hollow area is provided on the metal heating substrate, and the metal hollow area is located between adjacent resistor rows.

9. The infusion heating device according to claim 1, characterized in that: The metal heating substrate is an aluminum substrate, and the metal groove is a U-shaped aluminum part; The metal heating substrate and the metal groove are connected by thermal conductive silicone grease or thermal conductive glue.

10. The infusion heating device according to claim 1, characterized in that: The inner side of the lower shell and the inner side of the upper shell are fixedly connected by screws.

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