A new type of heating instrument

Abstract

This utility model discloses a novel thermostat, comprising a housing, a fixing device, a heating plate, a first circuit board, and a second circuit board. The first and second circuit boards are disposed on both sides of the heating plate, forming a heating module. The heating module is assembled within the fixing device, which is assembled within the housing space of the housing. A heating channel is provided in the center of the heating plate, through which the infusion tube passes for heating. By using the first and second circuit boards disposed on both sides of the heating plate, and a heating channel provided in the center of the heating plate, the infusion tube passes through the heating channel for heating, and V-shaped microgrooves are provided within the heating channel, the thermal efficiency is improved, solving the problems of insufficient thermal efficiency in existing infusion heating devices, which cause tube deformation due to overheating and uneven infusion temperature during use.

Description

Technical Field

[0001] This utility model relates to the field of thermal instrument technology, and in particular to a novel thermal instrument. Background Technology

[0002] Existing infusion heating devices generally suffer from a simple structure, and their heating efficiency is usually positively correlated with the length of the device. This means that in order to increase the heating temperature of the liquid, the length of the heating device must be extended, which limits the portability of the device and its flexibility in medical scenarios.

[0003] Existing infusion heating devices have insufficient thermal efficiency. Their single-sided heating method has a measured thermal efficiency of only 38-45%, requiring the heating plate surface to reach above 65°C to meet clinical needs, posing a risk of burns and potentially causing tubing deformation or even the release of harmful substances due to overheating. Furthermore, existing heating devices suffer from uncontrolled contact thermal resistance; fluctuations in contact thermal resistance caused by film deformation can reach 0.005-0.015 m²·K / W, resulting in actual temperature control deviations exceeding ±5°C. Uneven temperature distribution during heating due to variations in fluid flow rate within the infusion tubing can also lead to inconsistent infusion fluid temperatures received by patients. Summary of the Invention

[0004] Existing infusion heating devices have insufficient thermal efficiency, resulting in problems such as pipe deformation due to overheating and uneven infusion temperature during use.

[0005] To address the aforementioned issues, a novel thermostat is proposed. By using a first circuit board and a second circuit board positioned on both sides of a heating plate, and a heating channel set in the center of the heating plate, the infusion tube passes through the heating channel for heating. A V-shaped microgroove is set within the heating channel, which improves thermal efficiency and solves the problems of insufficient thermal efficiency in existing infusion heating devices, which cause the tube to deform due to overheating and uneven infusion temperature during use.

[0006] A new type of heating device includes:

[0007] Housing;

[0008] Fixture;

[0009] Heating plate;

[0010] First circuit board;

[0011] Second circuit board;

[0012] The first circuit board and the second circuit board are disposed on both sides of the heating plate, forming a heating module;

[0013] The heating module is assembled inside the fixing device, and the fixing device is assembled in the receiving space of the housing.

[0014] The heating plate has a heating channel in the center, and the infusion tube passes through the heating channel for heating.

[0015] In a first possible embodiment of the novel heating instrument described in this utility model, a plurality of V-shaped microgrooves are provided in the heating channel, and the plurality of V-shaped microgrooves are arranged in the heating channel.

[0016] In conjunction with the first possible implementation of this utility model, in the second possible implementation, the groove depth of the V-shaped microgroove is 0.01-0.20 mm, and the included angle is 60°-90°.

[0017] In conjunction with the first possible embodiment of this utility model, in the third possible embodiment, the heating plate further includes:

[0018] First and second openwork patterns;

[0019] The first and second hollow patterns are respectively disposed on both sides of the heating channel, and the hollow areas of the first and second hollow patterns are connected.

[0020] In conjunction with the third possible implementation of this utility model, in the fourth possible implementation, the fixing device includes:

[0021] First fixed frame;

[0022] Second mounting bracket;

[0023] The first fixing frame and the second fixing frame engage together to form the fixing device.

[0024] In conjunction with the fourth possible implementation of this utility model, in the fifth possible implementation, the receiving housing includes:

[0025] First shell;

[0026] Second shell;

[0027] The first housing and the second housing are connected together to form the receiving housing.

[0028] In conjunction with the fifth possible implementation of this utility model, in the sixth possible implementation, the housing further includes:

[0029] Locking mechanism;

[0030] The first housing and the second housing are rotatably connected at one end;

[0031] The locking mechanism is located at the other end of the first housing or the second housing, and the other ends of the first housing and the second housing are locked together by the locking mechanism.

[0032] In a seventh possible embodiment of the novel heating device described in this utility model, the novel heating device further includes:

[0033] First temperature detection unit and second temperature detection unit;

[0034] The first temperature detection unit and the second temperature detection unit are electrically connected to the first circuit board and the second circuit board, respectively, and are used to detect the temperature on both sides of the heating plate.

[0035] In an eighth possible embodiment of the novel heating device described in this utility model, the novel heating device further includes:

[0036] First light indicator unit and second light indicator unit;

[0037] The first light indicator unit and the second light indicator unit are electrically connected to the first circuit board and the second circuit board, respectively, and are used for status and fault information prompts.

[0038] The novel thermostat described in this utility model uses a first circuit board and a second circuit board set on both sides of a heating plate, and a heating channel set in the center of the heating plate. The infusion tube passes through the heating channel for heating, and a V-shaped microgroove is set in the heating channel, which improves the thermal efficiency and solves the problem of insufficient thermal efficiency of existing infusion heating devices, which causes the tube to deform due to overheating and uneven infusion temperature during use. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a structural diagram of the novel temperature and heat instrument in this utility model;

[0041] Figure 2 This is an exploded view of the structure of the novel heating instrument in this utility model;

[0042] Figure 3 This is a structural diagram of the heating plate in the novel temperature measuring instrument of this utility model;

[0043] Figure 4 This is a diagram of the V-channel structure inside the heating plate of the novel temperature and heat instrument in this utility model;

[0044] The parts referred to by the numbers in the attached diagram are as follows: 110 - First housing, 120 - Second housing, 210 - First fixing bracket, 220 - Second fixing bracket, 300 - Heating plate, 310 - Heating channel, 320 - First hollow pattern, 330 - Second hollow pattern, 410 - First circuit board, 411 - Temperature sensor, 412 - LED light, 420 - Second circuit board, 500 - Locking mechanism. Detailed Implementation

[0045] The technical solutions of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, other embodiments obtained by those skilled in the art without creative effort are all within the scope of protection of this utility model.

[0046] Existing infusion heating devices have insufficient thermal efficiency, resulting in problems such as pipe deformation due to overheating and uneven infusion temperature during use.

[0047] To address the above problems, a new type of heating instrument is proposed.

[0048] A new type of heating device, such as Figure 1 and Figure 2 , Figure 1 This is a structural diagram of the novel temperature measuring instrument in this utility model. Figure 2 This is an exploded view of the structure of the novel thermometer of this utility model; it includes a housing, a fixing device, a heating plate 300, a first circuit board 410, and a second circuit board 420; the first circuit board 410 and the second circuit board 420 are arranged on both sides of the heating plate 300 to form a heating module; the heating module is assembled in the fixing device, and the fixing device is assembled in the accommodating space of the housing; a heating channel 310 is provided in the center of the heating plate 300, and the infusion tube passes through the heating channel 310 for heating.

[0049] In this embodiment, in terms of functional implementation, it also includes modules such as a power connection cable, a battery box, a battery, and a battery charging dock (including a power adapter). The battery supplies power to the heater via the power connection cable; the battery box contains a dedicated matching battery, which supplies power to the heater via the power connection cable. An indicator light can also be used to indicate low battery level; a dedicated battery is provided. The battery includes a built-in battery control circuit and an LCD display showing the real-time battery level; the charging dock (including a power adapter) for charging the matching battery has LED lights to indicate the charging status.

[0050] In one possible implementation, a plurality of V-shaped microgrooves are provided in the heating channel 310, and the plurality of V-shaped microgrooves are arranged in the heating channel 310.

[0051] In one possible implementation, such as Figure 4 , Figure 4 This is a diagram of the V-groove structure inside the heating plate of the novel temperature and heat instrument in this utility model; the groove depth of the V-shaped microgroove is 0.01-0.20mm, and the included angle is 60°-90°.

[0052] In this embodiment, by using a first circuit board 410 and a second circuit board 420 disposed on both sides of a heating plate 300, and a heating channel 310 disposed in the center of the heating plate 300, the infusion tube passes through the heating channel 310 for heating, and a V-shaped microgroove is disposed in the heating channel 310, the thermal efficiency is improved, and the problem of insufficient thermal efficiency of existing infusion heating devices, which causes the tube to deform due to overheating and uneven infusion temperature during use, is solved.

[0053] The heating plate 300 in this embodiment is a 6061-T6 aluminum alloy heating plate 300 (size 88×25×5mm), with a maximum double-sided contact area of ​​4400mm2. It features a V-shaped micro-groove design (0.1mm deep, 2mm spacing), increasing the Nusselt number to Nu=4.2±0.3. A feedforward-feedback composite control algorithm is used, and the dynamic compensation formula for contact thermal resistance is:

[0054]

[0055] Where P(t) is the heating power at time t, Kd is the differential gain coefficient, m is the mass flow rate, Tset is the target set temperature, Tin is the inlet liquid temperature, h is the convective heat transfer coefficient, A is the effective heat transfer area, L is the flow channel length, cp is the specific heat capacity of the liquid, Tplate is the surface temperature of the heating plate, and Tfluid is the real-time temperature of the fluid.

[0056] In this embodiment, a discretized model is established based on the law of conservation of energy:

[0057]

[0058] Verification: The parameters of the thermometer in this application were configured as shown in Appendix 1. When the heating channel 310 (flow channel length) L = 88 mm, the theoretical outlet temperature is 38.2℃ (measured value 37.8-38.5℃), and the contact thermal resistance compensation error is <0.3℃. See Appendix 2 for test data.

[0059] Appendix 1

[0060]

[0061] The transient response model uses the lumped parameter method to analyze the temperature rise curve:

[0062]

[0063] The steady-state time was t = 86 seconds (deviation from the measured value of 82 seconds < 5%), and the overshoot was < 1.2℃ (PID parameters Kp = 2.5, Ki = 0.8, Kd = 0.3).

[0064] Experimental data: Steady-state performance test (n=120 times)

[0065] Appendix 2

[0066]

[0067] Failure Mode Analysis

[0068] Maximum safety boundary: When the flow rate is <20ml / min, the heating plate temperature exceeds 65℃, triggering the fuse protection.

[0069] Fault recovery time: Temperature drops by 2.8℃ within 3 seconds after power interruption (meets IEC 60601-2-35 standard).

[0070] In this embodiment, the safety mechanism is: a three-level temperature protection system is adopted, which includes progressive triggering logic of software limiting (60°C), hardware fuse (75°C), and mechanical separation (80°C).

[0071] In this embodiment of the application, the feedforward power compensation method based on real-time traffic prediction has the following compensation coefficient:

[0072] K_flow=1+0.25*(Q_current-Q_nominal) / Q_nominal (4),

[0073] Where K_flow is the supplementary coefficient, Q_current is the current flow, and Q_nominal is the nominal flow.

[0074] In one possible implementation, such as Figure 3 , Figure 3 This is a structural diagram of the heating plate 300 in the novel heating instrument of this utility model; the heating plate 300 also includes a first hollow pattern 320 and a second hollow pattern 330; the first hollow pattern 320 and the second hollow pattern 330 are respectively disposed on both sides of the heating channel 310, and the hollow areas of the first hollow pattern 320 and the second hollow pattern 330 are connected.

[0075] In one possible implementation, such as Figure 2 The fixing device includes a first fixing frame 210 and a second fixing frame 220; the first fixing frame 210 and the second fixing frame 220 are engaged together to form a fixing device.

[0076] In this embodiment, both the first fixing bracket 210 and the second fixing bracket 220 adopt a hollow pattern design, which is beneficial for heat dissipation.

[0077] In one possible implementation, such as Figure 2 The housing includes a first housing 110 and a second housing 120; the first housing 110 and the second housing 120 are connected together to form the housing.

[0078] In one possible implementation, such as Figure 1 The housing also includes a locking mechanism 500; one end of the first housing 110 and the second housing 120 are rotatably connected; the locking mechanism 500 is disposed at the other end of the first housing 110 or the second housing 120, and the other ends of the first housing 110 and the second housing 120 are locked together by the locking mechanism 500.

[0079] In one possible implementation, the novel temperature measuring instrument further includes a first temperature detection unit and a second temperature detection unit; the first temperature detection unit and the second temperature detection unit are electrically connected to the first circuit board 410 and the second circuit board 420 respectively, and are used to detect the temperature on both sides of the heating plate 300 respectively.

[0080] In this embodiment, a temperature sensor 411, such as a PT1000 sensor, can be used to collect temperature data.

[0081] In one possible implementation, the novel thermometer further includes a first light indicator unit and a second light indicator unit; the first light indicator unit and the second light indicator unit are electrically connected to the first circuit board 410 and the second circuit board 420 respectively, and are used for status and fault information prompts respectively.

[0082] In this embodiment, the first light indicator unit and the second light indicator unit respectively use two RGB_LED lights 412 to indicate the status or fault of the thermometer.

[0083] The novel thermostat implementing this utility model uses a first circuit board 410 and a second circuit board 420 arranged on both sides of a heating plate 300, and a heating channel 310 set in the center of the heating plate 300. The infusion tube passes through the heating channel 310 for heating, and a V-shaped microgroove is set in the heating channel 310, which improves the thermal efficiency and solves the problem of insufficient thermal efficiency of existing infusion heating devices, which causes the tube to deform due to overheating and uneven infusion temperature during use.

[0084] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A new type of warm apparatus, characterized in that, include: The housing; Fixture; Heating plate; First circuit board; Second circuit board; The first circuit board and the second circuit board are disposed on both sides of the heating plate, forming a heating module; The heating module is assembled inside the fixing device, and the fixing device is assembled in the receiving space of the housing. The heating plate has a heating channel in the center, and the infusion tube passes through the heating channel for heating.

2. The novel thermographic apparatus according to claim 1, characterized in that, The heating channel is provided with multiple V-shaped microgrooves, which are arranged in the heating channel.

3. The novel thermographic apparatus according to claim 2, characterized in that The depth of the V-shaped microgroove is 0.01-0.20 mm, and the included angle is 60°-90°.

4. The novel heating instrument according to claim 1, characterized in that, The heating plate also includes: First and second openwork patterns; The first and second hollow patterns are respectively disposed on both sides of the heating channel, and the hollow areas of the first and second hollow patterns are connected.

5. The novel heating instrument according to claim 4, characterized in that, The fixing device includes: First fixed frame; Second mounting bracket; The first fixing frame and the second fixing frame engage together to form the fixing device.

6. The novel heating instrument according to claim 5, characterized in that, The housing includes: First shell; Second shell; The first housing and the second housing are connected together to form the receiving housing.

7. The novel heating instrument according to claim 1, characterized in that, The housing further includes: Locking mechanism; The first housing and the second housing are rotatably connected at one end; The locking mechanism is located at the other end of the first housing or the second housing, and the other ends of the first housing and the second housing are locked together by the locking mechanism.

8. The novel heating instrument according to any one of claims 1-7, characterized in that, The novel heating instrument also includes: First temperature detection unit and second temperature detection unit; The first temperature detection unit and the second temperature detection unit are electrically connected to the first circuit board and the second circuit board, respectively, and are used to detect the temperature on both sides of the heating plate.

9. The novel heating instrument according to any one of claims 1-7, characterized in that, The novel heating instrument also includes: First light indicator unit and second light indicator unit; The first light indicator unit and the second light indicator unit are electrically connected to the first circuit board and the second circuit board, respectively, and are used for status and fault information prompts.

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