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Singlechip intelligent-control electrothermal bag

A technology of intelligent control and single-chip microcomputer, which is applied in the direction of electric heating device, electric temperature control, auxiliary controller with auxiliary heating device, etc., can solve the problems of metal fatigue, inconvenient use, and low temperature control accuracy, and achieve The effect of realizing intelligent control, improving accuracy and improving safety

Inactive Publication Date: 2009-11-25
邓建威
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the electric heating bag of above-mentioned structure has the following deficiencies: (1), the contact power-off protection in the thermostat belongs to the switch of mechanical property, obviously, the power-off and reset of mechanical switch, its temperature The accuracy of the temperature control is not high; moreover, after a long time of repeated actions of the mechanical switch, there will be serious metal fatigue, resulting in inaccurate temperature control of the thermostat, or even failure, so that there is a safety hazard in the electric warm bag; , the thermostat needs to be reset, affected by its mechanical characteristics, it takes a period of time to completely reset, which brings great inconvenience to use; (2), the existing electric heating bag controls the on-off of the heating circuit through the thermostat , to realize the temperature control of the electric heating body, however, as a temperature control switch, the temperature controller cannot be displayed to the user in real time and intuitively to reflect the heating state of the bag; (3), as the temperature control switch The controller does not have the function of function expansion; for example: because the temperature control parameters set by the thermostat cannot be modified, the existing electric heating bag cannot be set to multi-level temperature control

Method used

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  • Singlechip intelligent-control electrothermal bag
  • Singlechip intelligent-control electrothermal bag
  • Singlechip intelligent-control electrothermal bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: as figure 1 As shown, a single-chip microcomputer intelligent control electric heating bag includes a bag body 1 and its electric heating body 2. Liquid 3 is stored in the bag body 1, and the electric heating body 2 is immersed in the liquid 1. The electric socket 8 on the outer wall of the bag body 1 A single-chip microcomputer 4 is fixed, and the inner cavity of the bag body 1 is also provided with a temperature-sensing probe 5. The outer surface of the electric heating body 2 is provided with an accommodating groove 201, and the temperature-sensing probe 5 is placed in the accommodating groove 201 and tightened. Paste the wall of the groove, the single chip microcomputer 4 is electrically connected with the temperature sensing probe 5 and the electric heating body 2 respectively, and the temperature sensing probe 5 is fixed on the electric heating body 2; the bag body is also provided with a thyristor 12 or The comparator, the thyristor 12 or the compar...

Embodiment 2

[0028] Embodiment 2: as figure 2 As shown, its structure is similar to that of Embodiment 1, the difference is that: the temperature sensing probe 5 is hung in the inner cavity of the bag body 1 through the wire 6, and when the bag body 1 is heated and expanded, the bag wall bulges and pulls the wire 6 to make the bag The temperature-sensing probe 5 in the inner cavity of the body 1 leaves the liquid surface. At this time, the single-chip microcomputer 4 judges according to the data transmitted by the temperature-sensing probe 5 and compares the set parameters, and controls the heating circuit on and off to achieve the explosion-proof effect.

Embodiment 3

[0029] Embodiment 3: as image 3 and Figure 4As shown, its structure is similar to that of Example 1, the difference is: the electric heating body 2 is a double helix electric heating wire, in order to make the bag body 1 heated evenly, a fixed plate 11 with holes can be fixed in the bag body 1 , the double-helix electric heating wire is passed through the hole of the fixed plate 11, and the double-helix electric heating wire includes a mandrel 202, an inner layer PTC spiral resistance wire 203, an NTC heat-sensitive layer 204, and an outer spiral heating wire from the innermost layer to the outermost layer. The resistance wire 205, the outer insulating layer 206, and the temperature sensing probe 5 are fixed on the surface of the outer insulating layer 206 of the double-helix heating wire. For the double helix heating wire with this structure, its mandrel 202 plays the role of fixing the inner layer PTC helical resistance wire 203; the inner layer PTC helical resistance wir...

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Abstract

The invention relates to the technical field of electrothermal heating bags, in particular to a singlechip intelligent-control electrothermal bag in which heat conductive liquid is stored, comprising a bag body and an electric heating body thereof. The electric heating body is soaked in the liquid stored in the bag body, and a singlechip is fixed on the bag body; an inner cavity of the bag body is also provided with a temperature-sensing probe, and the singlechip is respectively electrically connected with the temperature-sensing probe and the electric heating body. The singlechip intelligent-control electrothermal bag has the advantages of simple and reasonable structure, high temperature control precision, safety, man-operated resetting, real-time and intuitive display of the heating state of the bag body for people, function extension and humanized operation.

Description

technical field [0001] The invention relates to the technical field of electric heating bags, in particular to an electric heating bag which is intelligently controlled by a single-chip microcomputer and is suitable for storing heat-conducting liquid in the bag. Background technique [0002] The structure of the existing electric heating bag generally includes a bag body and its electric heating body, liquid is stored in the bag body, and the electric heating body is immersed in the liquid. In order to prevent the electric heating body in the bag from burning dry, a temperature controller is fixed on the surface of the electric heating body, and the temperature controller is connected in series with the heating circuit of the bag body. When working, use the thermostat to sense the heating temperature of the electric heating body. When the surface temperature of the electric heating body reaches the set value of the thermostat, the thermostat will be disconnected to cut off t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F7/00A61F7/08G05D23/30H05B3/80H05B1/00
Inventor 邓建威
Owner 邓建威
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