Infrared temperature measurement probe

Abstract

The utility model provides an infrared temperature measurement probe, which comprises a thermal inductance part, an extension tube, a fixed base and an infrared detector, and is characterized in that the thermal inductance part and the fixed base are respectively and fixedly arranged at the upper end and the lower end of the extension tube, an accommodating space is arranged in the fixed base, and the accommodating space is communicated with the extension tube; and the infrared detector is arranged in the accommodating space. The infrared temperature measurement probe provided by the utility model measures temperature by detecting infrared radiation, so that the thermal inductance part does not need to be in direct contact with a measured object, and the infrared temperature measurement probe is suitable for high-temperature scenes with non-contact temperature measurement, such as security monitoring, forest fire early warning, body temperature detection in medical diagnosis, burners such as gas stoves and induction cookers.

Description

TECHNICAL FIELD

[0001] The utility model relates to the security detection technical field especially, relate to an infrared temperature measurement probe. BACKGROUND

[0002] In daily life, people often have something to do temporarily or forget to turn off the gas stove when cooking, which leads to the pot being dry, thereby causing a fire. In order to avoid the occurrence of dry burning phenomenon, the prior art will install a dry burning prevention probe in the gas stove, but the dry burning prevention probe generally uses a contact type temperature measurement probe. The temperature measurement assembly of the probe can stretch and contract with the pressure of the pot bottom, and the temperature of the pot bottom is measured through the effective contact between the probe and the pot bottom. When the temperature of the pot bottom is too high, it is judged that dry burning phenomenon occurs. However, the contact type probe depends on the close contact between the probe and the pot bottom. If the pot bottom is concave, uneven or has an obstruction, the probe cannot be in close contact with the pot bottom, which affects the accuracy of temperature measurement and leads to misjudgment of dry burning phenomenon. SUMMARY

[0003] To solve the above technical problems, an embodiment of the utility model provides an infrared temperature measurement probe, which comprises a heat sensing part, an extension pipe, a fixed base and an infrared detector. The heat sensing part and the fixed base are respectively fixed at the upper and lower ends of the extension pipe. The fixed base is provided with a containing space, and the containing space is communicated with the extension pipe. The infrared detector is arranged in the containing space.

[0004] Optionally, the extension pipe is a single-layer or multi-layer tubular structure.

[0005] Optionally, the inner wall of the extension pipe is provided with a coating.

[0006] Optionally, the heat sensing part is made of a material with high thermal conductivity and low thermal expansion coefficient.

[0007] Optionally, the thermal conductivity is greater than or equal to 100 W / mK.

[0008] Optionally, the thermal expansion coefficient is less than or equal to 30 ppm / ℃.

[0009] Optionally, the extension pipe is made of a high-temperature resistant material.

[0010] Optionally, the high-temperature resistant material has a temperature resistance of not less than 200℃.

[0011] Optionally, a through hole is formed in the middle of the heat sensing part, and an optical lens is mounted on the through hole.

[0012] Optionally, the heat sensing part is not perforated.

[0013] Optionally, the heat sensing part is threadedly connected, clamped, inserted or glued with the extension pipe.

[0014] Optionally, the infrared temperature measuring probe further comprises a processing unit electrically connected with the infrared detector, and the processing unit is arranged in the accommodating space or outside the fixed base.

[0015] The utility model discloses another embodiment further provides a burner, including the infrared temperature measuring probe of above-mentioned embodiment.

[0016] Compared with the prior art, the technical scheme of the utility model embodiment has the following beneficial effects:

[0017] The infrared temperature measuring probe provided by the utility model measures temperature by detecting infrared radiation, so the heat sensing part does not need to be directly contacted with the measured object, and is suitable for non-contact temperature measurement in high-temperature scenes, such as security monitoring, forest fire early warning, body temperature detection in medical diagnosis, burners such as gas stoves and induction cookers and the like.

[0018] Further, the infrared temperature measuring probe is suitable for burners such as gas stoves and induction cookers, and the heat sensing part can collect the temperature of the bottom of the pot without directly contacting the bottom of the pot, so that the accuracy of temperature measurement is improved, and the phenomenon of misjudgment and dry burning is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0020] Figure 1 It is the structure schematic diagram of the infrared temperature measuring probe provided by an embodiment of the utility model;

[0021] Figure 2 It is the structure schematic diagram of the infrared temperature measuring probe provided by another embodiment of the utility model;

[0022] Figure 3 It is the structure schematic diagram of the sectional type extension pipe provided by an embodiment of the utility model;

[0023] Figure 4 It is the structure schematic diagram of the heat sensing part and the extension pipe threadedly connected provided by an embodiment of the utility model;

[0024] Figure 5 It is the structure schematic diagram of the heat sensing part and the extension pipe threadedly connected provided by another embodiment of the utility model;

[0025] Figure 6 is a structure diagram of the heat sensing part and the extension tube plug-in provided by an embodiment of the present application;

[0026] Figure 7 is a structure diagram of the heat sensing part and the extension tube plug-in provided by another embodiment of the present application;

[0027] Figure 8 is a structure diagram of the heat sensing part and the extension tube card connection provided by an embodiment of the present application;

[0028] Figure 9 is a structure diagram of the heat sensing part with a through hole provided by an embodiment of the present application. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] The terms "first", "second", "third", "fourth" and the like (if any) in the description, claims, and drawings of the present application are used to distinguish similar objects, and do not necessarily indicate a particular order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in other than the order illustrated or described herein. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to the process, method, product, or device. The terms "upper" and "above" and any variations thereof are intended to describe the positional relationship, and do not represent a direct contact relationship between the described objects.

[0031] Please refer to Figure 1 The present application provides an infrared temperature measurement probe, which comprises a heat sensing part 1, an extension tube 2, a fixed base 3, and an infrared detector. The heat sensing part 1 and the fixed base 3 are respectively fixed at the upper and lower ends of the extension tube 2. The fixed base 3 is provided with a containing space 301, and the containing space 301 is communicated with the extension tube 2. The infrared detector is arranged in the containing space 301.

[0032] In the utility model, infrared temperature measurement probe is fixed in the position required to be installed through fixed base 3, and the temperature of the object to be measured can be felt through not directly contacting the object to be measured, and infrared radiation is generated, and the infrared radiation is received by infrared detector along the extension pipe 2 to the containing space 301 of fixed base 3. The utility model integrally connects the extension pipe 2 with the thermal sensing part 1 and the fixed base 3 respectively, and has the following effects:

[0033] I. the infrared radiation generated by the thermal sensing part 1 along the extension pipe 2 to the infrared detector, and the extension pipe 2 can prevent the leakage of infrared radiation;

[0034] II. the extension pipe 2 can isolate the temperature of the surrounding environment, and prevent the temperature of the surrounding environment from affecting the infrared radiation generated by the thermal sensing part 1 in the extension pipe 2;

[0035] III. the extension pipe 2 can filter the stray light of the surrounding environment, and avoid the stray light from affecting the infrared radiation generated by the thermal sensing part 1 in the extension pipe 2;

[0036] IV. the extension pipe 2 can ensure that the infrared radiation generated by the thermal sensing part 1 is uniform during transmission to the infrared detector.

[0037] Through the above effects, the accuracy of temperature measurement can be improved.

[0038] As an embodiment, the thermal sensing part 1 is made of a material with high thermal conductivity and low thermal expansion coefficient. Further, the thermal conductivity is greater than or equal to 100 W / mK, and the thermal expansion coefficient is less than or equal to 30 ppm / ℃. As an embodiment, the thermal sensing part 1 is made of a metal material, such as aluminum, copper or aluminum alloy, etc. As another embodiment, the thermal sensing part 1 is made of a non-metal material, such as ceramic, graphite or silicon carbide, etc.

[0039] The extension pipe 2 is made of a high-temperature-resistant material, and further, the high-temperature-resistant material has a temperature resistance of not less than 200℃, such as stainless steel, copper, aluminum, plastic or ceramic, etc.

[0040] The wall thickness and outer diameter of the extension pipe 2 can be set according to the specific high-temperature environment, such as the wall thickness of 0.5mm to 3mm and the outer diameter of 6mm to 16mm.

[0041] The extension pipe 2 can be a single-layer or multi-layer tubular structure.

[0042] As an embodiment, the extension pipe 2 is a single-layer tubular structure, which has a smooth inner wall.

[0043] As a second embodiment, the extension pipe 2 is a single-layer tubular structure, which has a smooth inner wall, and the inner wall is provided with a coating, such as a coating of glass, copper, silver or aluminum metal, etc.

[0044] As a third embodiment, the extension tube 2 is a multi-layer tubular structure, which is composed of a plurality of pipe fittings sleeved from outside to inside, that is, the pipe wall of the extension tube 2 has multiple layers, and the innermost layer of the pipe wall has a smooth inner wall. Figure 2 , Figure 2 As shown in FIGS. 2 and 3, the extension tube 2 is a double-layer tubular structure, which includes an outer tube 202 and an inner tube 201, and the inner tube 201 is inserted into the outer tube 202.

[0045] As a fourth embodiment, the extension tube 2 is a multi-layer tubular structure, which is composed of a plurality of pipe fittings sleeved from outside to inside, that is, the pipe wall of the extension tube 2 has multiple layers, and the innermost layer of the pipe wall has a smooth inner wall, and a coating is arranged on the inner wall, such as a coating of glass, copper, silver, or aluminum metal and the like.

[0046] As shown in FIGS. 2 and 3, the extension tube 2 is a double-layer tubular structure, which includes an outer tube 202 and an inner tube 201, and the inner tube 201 is inserted into the outer tube 202. Figure 3 As a third embodiment, the extension tube 2 is a multi-layer tubular structure, which is composed of a plurality of pipe fittings sleeved from outside to inside, that is, the pipe wall of the extension tube 2 has multiple layers, and the innermost layer of the pipe wall has a smooth inner wall. As shown in FIGS. 2 and 3, the extension tube 2 is a double-layer tubular structure, which includes an outer tube 202 and an inner tube 201, and the inner tube 201 is inserted into the outer tube 202.

[0047] The fixing mode of the thermal sensing part 1 and the extension tube 2 is not limited in the present application, such as threaded connection, clamping, insertion or cementing, which can be selected according to different structures of the thermal sensing part 1 and the extension tube 2.

[0048] As a third embodiment, the extension tube 2 is a multi-layer tubular structure, which is composed of a plurality of pipe fittings sleeved from outside to inside, that is, the pipe wall of the extension tube 2 has multiple layers, and the innermost layer of the pipe wall has a smooth inner wall. As shown in FIGS. 2 and 3, the extension tube 2 is a double-layer tubular structure, which includes an outer tube 202 and an inner tube 201, and the inner tube 201 is inserted into the outer tube 202. Figure 4 As a third embodiment, the extension tube 2 is a multi-layer tubular structure, which is composed of a plurality of pipe fittings sleeved from outside to inside, that is, the pipe wall of the extension tube 2 has multiple layers, and the innermost layer of the pipe wall has a smooth inner wall. As shown in FIGS. 2 and 3, the extension tube 2 is a double-layer tubular structure, which includes an outer tube 202 and an inner tube 201, and the inner tube 201 is inserted into the outer tube 202.

[0049] As a second embodiment, please refer to Figure 5 , the heat sensing part 1 includes a heat sensing part body 101, the lower end of the heat sensing part body 101 is provided with a protruding column 102, the outer diameter of the protruding column 102 is smaller than the outer diameter of the heat sensing part body 101. The protruding column 102 is provided with an external thread 1021, one end of the extension tube 2 is provided with an internal thread 207 matched with the external thread 1021, the protruding column 102 is screwed into the extension tube 2 along the internal thread 207 of the extension tube 2 through the external thread 1021.

[0050] As a third embodiment, the heat sensing part 1 is inserted into one end of the extension tube 2 and is in interference fit with the inner wall of the extension tube 2. In this embodiment, the heat sensing part 1 can be inserted into the extension tube 2 entirely, please refer to Figure 6 ; or can be inserted into the extension tube 2 partially, please refer to Figure 7 .

[0051] Please refer to Figure 8 , as a fourth embodiment, the inner wall of one end of the extension tube 2 is provided with a buckle 208, the outer wall of the heat sensing part 1 is provided with a clamping groove 103 matched with the buckle 208, the heat sensing part 1 is inserted into the extension tube 2, the buckle 208 in the extension tube 2 is clamped into the clamping groove 103 of the heat sensing part 1. Conversely, the inner wall of one end of the extension tube 2 is provided with a clamping groove, the outer wall of the heat sensing part 1 is provided with a buckle matched with the clamping groove, the buckle of the heat sensing part 1 is clamped into the clamping groove.

[0052] Please refer to Figure 9 , in the utility model, the middle of the heat sensing part 1 can be provided with a through hole 103, or can not be provided with a through hole 103. When the middle of the heat sensing part 1 is provided with a through hole 103, the optical lens 5 is installed on the through hole 103, the purpose is to guide the infrared radiation generated by the object to be measured into the extension tube 2 through the optical lens 5.

[0053] The extension tube 2 and the fixed base 3 can be manufactured in sections or integrally, the fixed base 3 can be made of the same material as the extension tube 2 or different material, the utility model does not make limitation to this.

[0054] Please refer to Figure 2 , the fixed base 3 includes an annular base 303, the outer diameter of the annular base 303 is much larger than the outer diameter of the extension tube 2. Because the outer diameter of the annular base 303 is much larger than the outer diameter of the extension tube 2, the upper end of the annular base 303 is integrally connected with the lower end of the wall of the extension tube 2 through the transition section 302. The lower end of the annular base 303 is provided with an annular flange 304 turned outward, the annular flange 304 is provided with a plurality of mounting holes 305, a plurality of threaded fasteners are respectively passed through the plurality of mounting holes 305 to fix the infrared temperature measuring probe at the position required to be installed.

[0055] The infrared temperature measuring probe is fixed to the position required to be installed through the fixing base 3, the heat sensing part 1 can sense the temperature of the object to be measured without directly contacting the object to be measured, and generates infrared radiation, the infrared radiation is transported along the extension tube 2 to the containing space 301 of the fixing base 3, is received by the infrared detector, the infrared signal is converted into an electric signal by the infrared detector, and is transmitted to the processing unit, the processing unit processes the electric signal, and outputs the corresponding temperature value. The processing unit can also be connected with the control unit, the control unit is connected with the alarm unit, and when the temperature value of the detected object exceeds the preheating temperature, the alarm unit will alarm.

[0056] Further, the infrared temperature measuring probe further comprises a processing unit, the processing unit is electrically connected with the infrared detector, and the processing unit can be arranged in the containing space 301 of the fixing base 3 or outside the fixing base 3.

[0057] The infrared temperature measuring probe provided by the utility model measures the temperature by detecting infrared radiation, so the heat sensing part 1 does not need to directly contact the object to be measured, and is suitable for non-contact temperature measurement in high-temperature scenes, such as security monitoring, forest fire early warning, body temperature detection in medical diagnosis, burners such as gas stoves and induction cookers, etc.

[0058] Further, the infrared temperature measuring probe is suitable for burners such as gas stoves and induction cookers, the heat sensing part 1 can collect the temperature of the bottom of the pot without directly contacting the bottom of the pot, so the accuracy of temperature measurement is improved, and the phenomenon of misjudgment of dry burning is prevented.

[0059] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. An infrared temperature measurement probe, characterized by The infrared detector is arranged in the accommodating space.

2. The infrared temperature measurement probe of claim 1, wherein, The extension pipe is single-layer or multi-layer tubular structure.

3. The infrared thermometry probe of claim 1, wherein, The inner wall of the extension pipe is provided with a coating.

4. The infrared thermometry probe of claim 1, wherein, The heat-sensitive part is made of material with high thermal conductivity and low thermal expansion coefficient.

5. The infrared thermometry probe of claim 4, wherein, The thermal conductivity is greater than or equal to 100 W / mK.

6. The infrared thermometry probe of claim 4 or 5, wherein, The thermal expansion coefficient is less than or equal to 30 ppm / ℃.

7. The infrared thermometry probe of claim 1, wherein, The extension pipe is made of high-temperature-resistant material.

8. The infrared thermometry probe of claim 7, wherein, The high-temperature-resistant material has a temperature resistance of not less than 200℃.

9. The infrared thermometry probe of claim 1, wherein, A through hole is arranged in the middle of the heat-sensitive part, and an optical lens is arranged on the through hole.

10. The infrared thermometry probe of claim 1, wherein, The heat-sensitive part is not provided with a through hole.

11. The infrared thermometry probe of claim 1, wherein, The heat-sensitive part is threadedly connected, clamped, inserted or cemented with the extension pipe.

12. The infrared thermometry probe of claim 1, wherein, The processing unit is electrically connected with the infrared detector, and is arranged in the accommodating space or outside the fixing base.

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