Heater

Abstract

The utility model provides a heater which comprises a heating plate and a heating bag, the heating bag is placed on the heating plate, the heating bag is provided with a bottom plate, the bottom plate is provided with a circulation pipeline, the circulation pipeline comprises a liquid inlet pipeline and a liquid outlet pipeline, and the liquid inlet pipeline and the liquid outlet pipeline are communicated with each other. The liquid inlet pipeline and the liquid outlet pipeline are arranged in a concentric-square shape and are arranged at intervals, and the liquid inlet pipeline is located on the inner side of the liquid outlet pipeline. According to the utility model, the circulation pipeline on the heating bag is arranged to be rectangular-ambulatory-plane, so that the flowing resistance of liquid in the rectangular-ambulatory-plane circulation pipeline is small, the flowing uniformity is good, and the heating efficiency is improved; besides, the liquid is uniformly distributed on the heating plate through the circulation pipeline shaped like the Chinese character'hui ', so that the heat is uniformly distributed, the problem of local overheating or supercooling is avoided, and the heating effect and the heating efficiency are improved; furthermore, the hollow-square-shaped circulation pipeline can save the length of the pipeline and reduce the cost; belongs to the technical field of heating devices.

Description

Technical Field

[0001] This utility model relates to the field of heating device technology, and in particular to a heater. Background Technology

[0002] Artificial liver support systems temporarily replace liver function through an external physical, chemical, or biological device. This removes toxins from the body, compensates for liver physiological functions, and allows liver cells to regenerate until the patient's own liver recovers or a liver transplant is possible. Currently, artificial liver support systems can be used for various extracorporeal circulation therapies such as blood purification and plasma exchange, playing a vital role in the treatment of many diseases.

[0003] When using an artificial liver support system for extracorporeal circulation therapies such as blood purification and plasma exchange, it is usually necessary to heat the plasma or rehydration fluid to a specified temperature. Therefore, artificial liver support systems are typically equipped with heaters. Utility model patent application number 2021115769007 discloses a flow path holding device and a liquid handling device, including a heating flow path and a heater. The heating flow path carries the liquid to be heated, and the heater heats the liquid. However, the heating flow path in this patent is serpentine, resulting in high flow resistance and poor flow uniformity. This leads to uneven heating, easily causing localized overheating or undercooling, affecting the heating effect and efficiency. Therefore, a new heater design is needed. Utility Model Content

[0004] The purpose of this application is to provide a heater that solves the technical problems of existing heaters, such as poor uniformity of liquid flow, uneven heating, and the tendency for local overheating or undercooling.

[0005] This application provides a heater, including a heating plate and a heating bag. The heating bag is placed on the heating plate, and the heating bag has a bottom plate. The bottom plate has a flow channel, which includes an inlet channel and an outlet channel. The inlet channel and the outlet channel are interconnected. Both the inlet channel and the outlet channel are arranged in a U-shape and are spaced apart. The inlet channel is located inside the outlet channel.

[0006] In one embodiment, the inlet pipe is provided with an inlet, and the outlet pipe is provided with an outlet.

[0007] In one embodiment, the heating bag is placed on one side of the heating plate, and a first fixing shell is provided on the side of the heating plate away from the heating bag, the first fixing shell fixing the heating plate to the device housing.

[0008] In one embodiment, the first fixing shell has a first heat insulation layer on the side away from the heating plate, and the first fixing shell fixes the heating plate and the first heat insulation layer to the equipment housing.

[0009] In one embodiment, the first insulation layer is aerogel insulation cotton.

[0010] In one embodiment, a pressing assembly is further included, the pressing assembly having a door panel that is hinged to the device housing via a hinge, a second fixing shell being provided on the side of the door panel near the heating bag, and a spring connecting the door panel and the second fixing shell; when the door panel is closed, the spring presses the heating bag onto the heating plate through the second fixing shell.

[0011] In one embodiment, the door panel is provided with a lock, which locks the door panel to the equipment housing when the door panel is closed.

[0012] In one embodiment, the door panel is frame-shaped with an inner accommodating space; when the door panel is closed, both the spring and the second fixing shell are located within the accommodating space.

[0013] In one embodiment, the second fixed shell has a second insulation layer on the side near the door panel, and the spring passes through the second insulation layer and is connected to the second fixed shell.

[0014] In one embodiment, the second insulation layer is aerogel insulation cotton.

[0015] This invention provides a heater, which, compared with existing technologies, offers the following advantages: By arranging the flow channels on the heating bag in a U-shape, the flow resistance of the liquid within the U-shaped flow channels is low, resulting in good flow uniformity and improved heating efficiency. Furthermore, the U-shaped flow channels ensure even distribution of the liquid on the heating plate, achieving balanced heat distribution and avoiding localized overheating or undercooling, thus improving heating effect and efficiency. Additionally, the U-shaped flow channels save on pipe length, reducing costs. By arranging both the inlet and outlet pipes in a U-shape and spacing them apart, with the inlet pipe located inside the outlet pipe, slow liquid inflow and rapid liquid outflow are achieved. Slow liquid inflow allows the liquid to fully absorb heat during flow, improving the heating effect, while rapid liquid outflow allows the heated liquid to enter the patient's body quickly, enhancing the therapeutic effect. This invention features a simple structure, even heat distribution, good heating effect, high heating efficiency, and achieves slow liquid inflow and rapid liquid outflow, making it highly practical. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the exploded structure of a heater according to an embodiment of this application;

[0018] Figure 2 for Figure 1 A schematic diagram of the exploded structure of the heater from another angle;

[0019] Figure 3 for Figure 1 An enlarged schematic diagram of the heating bag in the heater shown;

[0020] Figure 4 for Figure 1 The diagram shows the structure of the heater in use.

[0021] Figure 5 for Figure 1 The diagram shows the heater in use from another angle.

[0022] Explanation of symbols in the diagram:

[0023] 1. Heating plate; 2. Heating bag; 201. Base plate; 202. Flow pipe; 2021. Liquid inlet pipe; 2022. Liquid outlet pipe; 203. Liquid inlet; 204. Liquid outlet; 3. First fixed shell; 4. First insulation layer; 5. Door panel; 501. Accommodation space; 6. Second fixed shell; 7. Second insulation layer; 8. Spring; 9. Hinge; 10. Lock; 11. Pressing assembly. Detailed Implementation

[0024] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0025] It should be noted that when a component is referred to as being "fixed" or "set" to another component, it can be directly or indirectly attached to that other component. When a component is referred to as being "connected" to another component, it can be directly or indirectly connected to that other component.

[0026] It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and should not be construed as indicating or implying that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] Please see Figure 1 This is a schematic diagram of a heater according to an embodiment of this application. For ease of explanation, only the parts relevant to this embodiment are shown, which are described in detail below:

[0028] In one embodiment, please refer to Figures 2-3 A heater includes a heating plate 1 and a heating bag 2. The heating bag 2 is placed on the heating plate 1. The heating bag 2 has a base plate 201, and a flow channel 202 is provided on the base plate 201. The flow channel 202 includes an inlet channel 2021 and an outlet channel 2022, which are interconnected. Both the inlet channel 2021 and the outlet channel 2022 are arranged in a U-shape and are spaced apart. The inlet channel 2021 is located inside the outlet channel 2022. This application is used to heat plasma or rehydration fluid during extracorporeal circulation treatments such as blood purification and plasma exchange for patients. Plasma or other fluids enter the flow line 202 through the inlet line 2021 and flow through the flow line 202. During the flow, the heating plate 1 works to heat the liquid to a specified temperature. The heated liquid flows out through the outlet line 2022 and is pumped into the patient's body.

[0029] By arranging the flow channel 202 on the heating bag 2 in a U-shape, the flow resistance of the liquid in the U-shaped flow channel 202 is small, and the flow uniformity is good, thus improving the heating efficiency. In addition, the U-shaped flow channel 202 allows the liquid to be evenly distributed on the heating plate 1, achieving a balanced distribution of heat and avoiding the problems of local overheating or undercooling, thereby improving the heating effect and heating efficiency. Furthermore, the U-shaped flow channel 202 can save on pipe length and reduce costs. By arranging both the inlet channel 2021 and the outlet channel 2022 in a U-shape and setting them alternately, with the inlet channel 2021 located inside the outlet channel 2022, slow liquid inflow and rapid liquid outflow are achieved. Slow liquid inflow allows the liquid to fully absorb heat during the flow process, improving the heating effect, while rapid liquid outflow allows the heated liquid to enter the patient's body in a short time, improving the treatment effect.

[0030] For details, please refer to Figure 3 The inlet pipe 2021 is provided with an inlet port 203, and the outlet pipe 2022 is provided with an outlet port 204. Liquid enters the inlet pipe 2021 through the inlet port 203, is heated, and then exits the outlet pipe 2022 through the outlet port 204. The liquid is heated by the heating plate 1 as it flows through the circulation pipe 202.

[0031] Please see Figures 1-2 A hook or other fixing component is provided on one side of the heating plate 1, and the heating bag 2 is placed on one side of the heating plate 1 by the hook or other fixing component. In this embodiment, two heating bags 2 are provided, which can heat different liquids at the same time.

[0032] In one embodiment, please refer to Figures 1-2 A first fixing shell 3 is provided on the side of the heating plate 1 away from the heating bag 2, and the first fixing shell 3 fixes the heating plate 1 to the device housing. The device housing can be the housing of artificial liver support system related equipment, the housing of blood purification equipment, or the housing of other medical equipment.

[0033] In one embodiment, please refer to Figures 1-2 A first insulation layer 4 is provided on the side of the first fixed shell 3 away from the heating plate 1. The first fixed shell 3 fixes the heating plate 1 and the first insulation layer 4 to the equipment shell. The first insulation layer 4 serves to keep the heat out of the shell, reduce heat loss, and allow more of the heat generated by the heating plate 1 to be transferred to the liquid in the flow pipe 202, thereby improving the heating efficiency of the heater.

[0034] In one embodiment, please refer to Figures 1-2 The first insulation layer 4 is aerogel insulation cotton. The first insulation layer 4 can also be an insulation layer of other materials, as long as it has the effect of insulation.

[0035] In one embodiment, please refer to Figures 1-2 and Figures 4-5 The device also includes a pressing assembly 11, which has a door panel 5. The door panel 5 is hinged to the device housing via a hinge 9. A second fixing shell 6 is provided on the side of the door panel 5 near the heating bag 2. A spring 8 is connected between the door panel 5 and the second fixing shell 6. When the door panel 5 is closed, the spring 8 presses the heating bag 2 onto the heating plate 1 through the second fixing shell 6. The pressing assembly 11 presses the heating bag 2 onto the heating plate 1, avoiding gaps between the heating bag 2 and the heating plate 1, thus improving the heating effect and heating efficiency.

[0036] In one embodiment, please refer to Figures 4-5The door panel 5 is equipped with a lock 10. When the door panel 5 is closed, it is locked to the equipment housing by the lock 10. The door panel 5 both presses down on the heating bag 2 and protects the heating bag 2, improving the stability and safety of the heating process.

[0037] In one embodiment, please refer to Figure 2 and Figures 4-5 The door panel 5 is frame-shaped, with an inner receiving space 501. When the door panel 5 is closed, both the spring 8 and the second fixed housing 6 are located within the receiving space 501. Designing the door panel 5 as a frame allows the formation of the receiving space 501 inside, which helps to cleverly hide components such as the spring 8 and the second fixed housing 6 inside the door panel 5 when closed, making the entire heater look neater and more aesthetically pleasing. In addition, the door panel 5 also protects components such as the spring 8 and the second fixed housing 6.

[0038] In one embodiment, please refer to Figures 1-2 The second fixed shell 6 has a second insulation layer 7 on the side near the door panel 5, and the spring 8 passes through the second insulation layer 7 and connects to the second fixed shell 6. The function of the second insulation layer 7 is the same as that of the first insulation layer 4, which is to keep the heat in place, reduce heat loss, and improve heating efficiency.

[0039] In one embodiment, please refer to Figures 1-2 The second insulation layer 7 is aerogel insulation cotton. The second insulation layer 7 can also be an insulation layer of other materials, as long as it has the effect of insulation.

[0040] The following combination Figures 1-5 The working process of a heater according to this application is described as follows:

[0041] Before use, open the door panel 5, fix the heating bag 2 to the side of the heating plate 1, close the door panel 5, and lock the door panel 5 to the equipment housing using the lock 10.

[0042] When in use, the heating plate 1 is turned on, and plasma or other fluids enter the inlet pipe 2021 through the inlet port 203, flow into the outlet pipe 2022 through the inlet pipe 2021, and circulate in the flow pipe 202. During the flow, the liquid is heated to the specified temperature by the heating plate 1, and the heated liquid is discharged from the outlet pipe 2022 through the outlet port 204 and pumped into the patient's body.

[0043] After use, open door panel 5, remove and dispose of heating bag 2, close door panel 5, and wait for the next operation.

[0044] In summary, this invention provides a heater that improves heating efficiency by arranging the flow channels on the heating bag in a U-shape. This design minimizes flow resistance and ensures good flow uniformity. Furthermore, the U-shape allows for even distribution of liquid on the heating plate, achieving balanced heat distribution and preventing localized overheating or undercooling, thus enhancing heating effect and efficiency. Additionally, the U-shape saves on pipe length and reduces costs. By arranging both the inlet and outlet pipes in a U-shape with intervals between them, and with the inlet pipe located inside the outlet pipe, slow liquid inflow and rapid liquid outflow are achieved. Slow inflow allows the liquid to fully absorb heat during flow, improving heating effect, while rapid outflow allows the heated liquid to enter the patient's body quickly, enhancing therapeutic efficacy. This invention features a simple structure, even heat distribution, good heating effect, high heating efficiency, and achieves slow liquid inflow and rapid liquid outflow. It is highly practical and can be widely applied in the medical device field.

[0045] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A heater comprising a heating plate (1) and a heating bag (2), the heating bag (2) being placed on the heating plate (1), characterized in that, The heating bag (2) is provided with a bottom plate (201), and a flow channel (202) is provided on the bottom plate (201). The flow channel (202) includes an inlet channel (2021) and an outlet channel (2022). The inlet channel (2021) and the outlet channel (2022) are interconnected. The inlet channel (2021) and the outlet channel (2022) are both arranged in a U-shape and are spaced apart. The inlet channel (2021) is located inside the outlet channel (2022).

2. The heater as claimed in claim 1, characterized in that, The inlet pipe (2021) is provided with an inlet (203), and the outlet pipe (2022) is provided with an outlet (204).

3. The heater as claimed in claim 1, characterized in that, The heating bag (2) is placed on one side of the heating plate (1), and a first fixing shell (3) is provided on the side of the heating plate (1) away from the heating bag (2), and the first fixing shell (3) fixes the heating plate (1) to the equipment housing.

4. The heater as described in claim 3, characterized in that, The first fixing shell (3) has a first heat insulation layer (4) on the side away from the heating plate (1), and the first fixing shell (3) fixes the heating plate (1) and the first heat insulation layer (4) to the equipment housing.

5. The heater as claimed in claim 4, characterized in that, The first insulation layer (4) is aerogel insulation cotton.

6. The heater as claimed in claim 3, characterized in that, It also includes a pressing assembly (11), which has a door panel (5) that is hinged to the equipment housing via a hinge (9). The door panel (5) has a second fixing shell (6) on the side near the heating bag (2), and a spring (8) is connected between the door panel (5) and the second fixing shell (6). When the door panel (5) is closed, the spring (8) presses the heating bag (2) onto the heating plate (1) through the second fixing shell (6).

7. The heater as claimed in claim 6, characterized in that, The door panel (5) is provided with a lock (10), and when the door panel (5) is closed, the door panel (5) is locked to the equipment housing by the lock (10).

8. The heater as claimed in claim 6, characterized in that, The door panel (5) is frame-shaped and has an inner accommodating space (501); when the door panel (5) is closed, the spring (8) and the second fixing shell (6) are both located in the accommodating space (501).

9. The heater as claimed in claim 6, characterized in that, The second fixed shell (6) is provided with a second heat insulation layer (7) on the side near the door panel (5), and the spring (8) passes through the second heat insulation layer (7) and is connected to the second fixed shell (6).

10. The heater as claimed in claim 9, characterized in that, The second insulation layer (7) is aerogel insulation cotton.

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