Portable temperature measurement device

Abstract

To provide a portable temperature measurement device which ensures reliable button operability and measurement result readability regardless of the measurement position, and which enables easy alignment of a temperature sensor position with a measurement point of a measurement target to make accurate temperature measurement.SOLUTION: A portable temperature measurement device main body 10 has a display unit 16 and operating unit 21 provided on a first surface 13 thereof, and a first opening 23 is provided on a second surface 14 to direct infrared rays to an infrared sensor located inside the main body 10, the first opening 23 being located near an outer periphery of the second surface 14, and a sighting unit 50 for aiming at a measurement point of a measurement target is provided on a peripheral portion of the main body near the first opening 23.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a portable temperature measurement device. [Background technology]

[0002] Portable temperature measuring devices that measure the temperature of an object to be measured without contact are known. Such portable temperature measuring devices are generally provided with an infrared sensor (temperature sensor) for detecting temperature at the tip of a stick-shaped (rod-shaped) main body, and a display unit that displays the measurement results and an operation unit such as a button switch are provided on the surface of the main body other than the tip (see, for example, Patent Document 1). In measurement, the narrowed tip of the main body is aimed at the object to be measured, for example, a person's forehead in the case of a thermometer, and the operation button is operated to measure the temperature. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2022-99646 A Summary of the Invention [Problem to be solved by the invention]

[0004] Although such a rod-shaped portable temperature measuring device has the advantage that the tip can be easily aligned with the measurement point of the object to be measured, the display unit is located on a surface different from the tip, which is troublesome because it is necessary to move the display unit to face the eye when checking the temperature measurement result on the display unit after measurement. In addition, when the tip of the portable temperature measuring device is aligned with the measurement point of the object to be measured and then the button is operated for measurement, if the position of the portable temperature measuring device is higher than eye level, such as when measuring the temperature of the forehead with a thermometer, the button itself becomes difficult to see and reliable button operation cannot be performed. In addition, because it is rod-shaped, there is not enough space on the flat surface, making it difficult to make the display unit larger, and there are also problems such as the measurement result taking time to recognize when the characters are small.

[0005] The present invention provides a portable temperature measurement device that solves at least one of these problems and can easily perform accurate temperature measurement. [Means for solving the problem]

[0006] As a configuration of one embodiment of the present invention, the portable temperature measuring device is a portable temperature measuring device comprising a main body having an infrared sensor therein and a gripping portion, the main body comprising a first surface, a second surface opposite to the first surface, a display unit and an operation unit arranged on the first surface, a first opening arranged on the second surface for directing infrared light to the infrared sensor, and an aiming portion for aiming at a measurement point on the object to be measured, the width of the first surface being greater than the width of the gripping portion in a direction perpendicular to the extension direction of the gripping portion when viewed from the first surface side, the first opening being arranged near the outer periphery of the main body opposite the gripping portion, and the aiming portion being provided on the outer periphery of the main body near the first opening.

[0007] In this embodiment, the display unit and the operation unit are provided on the first surface, and the first opening for guiding infrared rays to the infrared sensor arranged inside the main body is provided on the second surface, so that the operator can operate the portable temperature measuring device while looking directly at the operation unit regardless of the measurement position of the portable temperature measuring device, and can easily recognize the measurement result without moving the portable temperature measuring device from the measurement point, thereby improving operability. In addition, when viewed from the first surface side, the width of the first surface is made larger than the width of the grip part in the direction perpendicular to the extension direction of the grip part, so that the area of ​​the display unit can be set large, thereby improving readability. Furthermore, the first opening arranged on the second surface is arranged along the outer periphery of the main body on the opposite side to the grip part, and the aiming part is provided on the outer periphery of the main body near the first opening. With this configuration, even if the infrared sensor is on the second surface side that cannot be directly seen by the operator, the position where the aiming part is visible can be adjusted to the position where the measurement point of the measured object is visible, so that the direction and position of the infrared sensor can be appropriately adjusted to the measurement point, and accurate temperature measurement can be easily performed. [Brief description of the drawings]

[0008] [Figure 1] 1 shows a first embodiment of the present invention, with FIG. 1(a) being a front view, FIG. 1(b) being a rear view, and FIG. 1(c) being a left side view. [Diagram 2] 2 is a cross-sectional view taken along line AA' in FIG. [Diagram 3] 3A and 3B are explanatory views for explaining use of the first embodiment, and FIG. 3A is a side view for explaining use, and FIG. 3B is a front view of the side in use. [Figure 4] FIG. 1 is a diagram showing the hardware configuration used in the first embodiment. [Diagram 5] 5 shows a second embodiment, with FIG. 5(a) being a front view and FIG. 5(b) being a rear view. [Figure 6] 6 shows a third embodiment, with FIG. 6(a) being a front view and FIG. 6(b) being a rear view. [Figure 7] 7 shows a fourth embodiment, with FIG. 7(a) being a front view, FIG. 7(b) being a rear view, and FIG. 7(c) being a left side view. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, a portable temperature measuring device according to the present invention will be described with reference to the drawings.

[0010] [Embodiment 1] Fig. 1 shows a portable temperature measuring device 100 according to embodiment 1. Fig. 1(a) is a front view of the portable temperature measuring device 100, Fig. 1(b) is a rear view, and Fig. 1(c) is a left side view. 1, the portable temperature measuring device 100 includes a main body 10 that appears substantially circular when viewed from the front, and a grip 11 that is connected to the main body and is provided for holding the portable temperature measuring device 100 in the hand. The main body 10 includes an infrared sensor therein.

[0011] The main body 10 houses a circuit board 30 on which electronic components such as a CPU are mounted. The grip part 11 is connected to the main body 10 and includes a battery 31, such as a dry cell or a rechargeable battery, as a power source for driving the portable temperature measuring device 100. The main body 10 has a first surface 13 located on the front side, a second surface 14 located on the rear side opposite the first surface 13, and a third surface 15 connecting the first surface 13 and the second surface 14. The first surface 13 and the second surface 14 may each be a flat surface, or may be partially or entirely curved, and may further include partial functional or decorative irregularities. When viewed from the side of the first surface 13, the portable temperature measuring device 100 is formed so that the width of the first surface 13 in a direction perpendicular to the extension direction of the gripping portion 11 is greater than the width of the gripping portion 11 in the same direction. In addition, all radial dimensions of the first surface, including the center, are formed to be larger than the maximum distance from the first surface to the second surface. Although the third surface 15 is provided in this embodiment, for example, the second surface 14 may be a curved surface and directly connected to the first surface 13.

[0012] A display unit 16 consisting of, for example, an LCD (Liquid Crystal Display) or an LED (light-emitting diode) is disposed on the first surface 13, and an operation unit 21 consisting of, for example, push buttons 17, 18, 20 and a ring button 19 is disposed in the space between the display unit 16 and the grip unit 11. For example, the push button 17 is a temperature measurement button, the push button 18 is a button for reading the identification code of the measurement target MT, the ring button 19 is a function selection button, and the push button 20 is a button for confirming the function selected by the ring button 19. By arranging the buttons in this way, the operator can operate the operation unit 21 with the thumb or the like while holding the grip unit 11 in one hand, thereby improving operability.

[0013] A first opening 23 for guiding infrared light to an infrared sensor 22 disposed inside the main body 10 is disposed on the second surface 14 near the outer periphery 12. A distance sensor 24 is also provided near the infrared sensor 22. The distance sensor 24 is equipped with a light-emitting element 24a and a light-receiving element 24b, and the light from the light-emitting element 24a is reflected by the measurement target MT and is measured by the light-receiving element 24b, thereby enabling the recognition of distance.

[0014] A second opening 25 for guiding the light from the light emitting element 24a and the reflected light from the measurement target MT is provided on the second surface 14 of the main body 10. A waveguide 33 for collecting infrared rays is disposed between the first opening 23 and the infrared sensor 22. A waveguide 34 is also disposed between the second opening 25 and the distance sensor 24.

[0015] FIG. 2 is an example of a cross-sectional view taken along line AA' of FIG. 2, the infrared sensor 22 and the distance sensor 24 are attached to the circuit board 30. A waveguide 33 is provided between the infrared sensor 22 and the main body 10, and an opening 33a of the waveguide 33 forms the first opening 23 of the main body 10. In addition, a waveguide 34 is provided between the distance sensor 24 and the main body 10, and an opening 34a of the waveguide 34 forms the second opening 25. Distance sensor 24 is disposed close to second surface 14 in order to effectively receive and emit light. Meanwhile, infrared sensor 22 is disposed inside distance sensor 24 in order to increase the intensity of received light by collecting infrared light using waveguide 33, the inner surface of which has a conical or parabolic surface. Also, because infrared sensor 22 is disposed inside distance sensor 24, the viewing angle from infrared sensor 22 is narrowed by relatively long waveguide 33, and as a result, objects other than the object to be measured are difficult to see.

[0016] In this embodiment, the waveguide 33 and the waveguide 34 are integrally formed from resin or the like, and the inside is plated with a highly reflective material such as gold, silver, nickel-chrome, or rhodium, as necessary. The waveguides may be provided separately instead of being integral. The waveguides 33 and 34 are not necessarily required, and the main body 10 may be provided directly with an opening (first opening 23) through which infrared rays for temperature measurement pass, or an opening (second opening 25) through which light from a light-emitting element of a distance sensor passes. The first opening 23 is located near the outer periphery 12 of the main body 10 on the opposite side to the grip 11. The main body 10 may be provided with a warning unit 32 consisting of a light-emitting element such as a buzzer or LED on, for example, the first surface 13, the second surface 14, or the third surface 15.

[0017] However, when measuring temperature by measuring the amount of infrared radiation emitted from the object to be measured MT, there is a problem that the measured value varies depending on the distance between the object to be measured MT and the portable temperature measuring device 100, and an accurate measured value cannot be obtained if the distance is not appropriate. To avoid such problems, the distance sensor 24 may be disposed, and when a predetermined distance is recognized, a warning may be issued by the warning unit 32, such as a buzzer or an LED lamp. For example, when the push button 17 for temperature measurement is operated, if the distance measured by the distance sensor 24 is within an appropriate range, the measurement result of the infrared sensor 22 is displayed on the display unit 16. If the distance is outside the appropriate range, the warning unit 32 issues a warning to prompt the operator to measure again. Alternatively, when it is recognized that the distance sensor 24 has entered a predetermined distance range before the push button 17 for temperature measurement is operated, the warning unit 32 may issue a warning, and the operator may operate the push button 17 at that timing to measure the temperature.

[0018] Furthermore, the portable temperature measuring device 100 has a first opening 23 for directing infrared rays to the infrared sensor 22 positioned near the outer periphery 12 of the second surface 14, and a protrusion 26 positioned nearby on the third surface as an aiming portion 50 for indicating the position of the first opening 23. The "aiming part" is a part for aiming at a measurement point on an object to be measured. The aiming portion is provided on the outer periphery (here, outer periphery 12) of the main body portion 10 near the first opening 23 when the first surface 13 is viewed in plan. The "aiming portion" in the first embodiment is configured as a protrusion 26 that protrudes outward from the outer periphery 12. The first opening 23 and the aiming portion 50 are located on a virtual center line CL along the extension direction of the grip portion 11.

[0019] Since the protrusion 26 and the infrared sensor 22 are positioned close to each other, the operator can use the protrusion 26 as a sight and align it with the measurement part of the object to be measured MT, enabling easy and accurate temperature measurement of the measurement position. In addition, since the distance sensor 24 is also positioned near the infrared sensor 22, when the protrusion 26 is aimed at the measurement point, the distance to the measurement part of the measured object MT is automatically obtained correctly, which contributes to highly accurate temperature measurement.

[0020] Incidentally, readability can be improved by enlarging the display area 16 by widening the first surface 13, but if the infrared sensor 22 and the first opening 23 for it are provided on the second surface 14 side, the position of the infrared sensor 22 becomes more difficult to recognize to the extent that the first surface 13 is widened, which may cause anxiety to the operator or make accurate temperature measurement difficult. However, by adopting the above-mentioned configuration, the infrared sensor can be reliably and easily aligned with the measurement location of the object to be measured MT even if the first surface 13 is wide. In Fig. 1, the protrusion 26 is provided on the third surface and is formed in a portion closer to the second surface 14. This allows the position of the protrusion 26 to be closer to the object to be measured MT, which contributes to accurate measurement. However, as long as the function as a sight is not impaired, the position of the protrusion 26 may be anywhere on the third surface 15 in the direction from the first surface 13 to the second surface 14, or the protrusion may be a rod-shaped protrusion extending from the first surface to the second surface.

[0021] That is, by arranging the first opening 23 on the second surface 14 along the outer periphery 12 of the main body 10 on the side opposite the gripping part 11 and providing the aiming part 50 on the outer periphery of the main body 10 near the first opening 23, even if the infrared sensor 22 is on the second surface 14 side where it cannot be directly seen by the operator, the position where the aiming part 50 is visible can be aligned with the position where the measurement point on the object to be measured is visible, so that the direction and position of the infrared sensor 22 can be appropriately aligned with the measurement point. This makes it possible to easily perform accurate temperature measurement.

[0022] The main body 10 and the grip 11 are formed, for example, from a resin case member. As shown in Fig. 2, the protrusion 26 which becomes the aiming portion 50 is formed integrally with the main body 10 from the resin case member. However, the protrusion 26 may be formed as a separate body and fixed to the main body 10.

[0023] By arranging the display unit 16 and the operation unit 21 on the first surface 13, arranging a first opening 23 for directing infrared rays to the infrared sensor 22 on the second surface 14, and providing an aiming unit 50 near the first opening 23, the thickness dimension of the main body 10 (the maximum distance from the first surface 13 to the second surface 14) can be made as thin as the thickness dimension of the portion of the gripping portion 11 that stores AA batteries (the dimension in the direction from the first surface 13 to the second surface 14), for example. This allows for easy and accurate temperature measurement while also achieving a lightweight portable temperature measuring device 100 that is easy to use in daily life.

[0024] Fig. 3 is an explanatory diagram of how to use the embodiment 1. Fig. 3(a) is an explanatory side view in the case where the portable temperature measuring device 100 is used to measure the body temperature of a person as a measurement target MT, and Fig. 3(b) is an explanatory front view. 3, an operator (not shown) holds the portable temperature measuring device 100 in his / her hand and brings it in front of the face of the measurement target MT, aligning the protrusion 26 with the position of the forehead, which is the measurement point. In this case, the operator can visually check the measurement result with the portable temperature measuring device 100 aligned with the measurement point after the temperature measurement, which provides excellent operability.

[0025] FIG. 4 is a diagram showing the hardware configuration used in the first embodiment. 4, the portable temperature measuring device 100 has a processor 40, a storage unit 43 consisting of a memory 41, a storage 42, etc., an input / output I / F (Interface) 44, and a communication I / F (Interface) 45. The input / output I / F 44 includes the infrared sensor 22, the distance sensor 24, the operation unit 21, the display unit 16, and a warning unit 32 consisting of a buzzer or a warning LED. The input / output I / F 44 may also have an identification code reading unit (not shown) for the measurement target MT. These elements are connected to a bus BS.

[0026] The memory 41 stores temperature measurement data and identification code data. The storage 42 stores programs that cause the processor 40 to control the portable temperature measuring device 100 and perform each function, initial data for operation, and the like. The communication I / F 45 is an I / F (Interface) portion that communicates with an external device such as a smartphone (smart terminal). The communication I / F 45 may have, for example, a BLE (Bluetooth Low Energy) communication function. For example, the temperature data and identification code data stored in the memory 41 can be transmitted to an external device by communication via the communication I / F 45. In addition, the external device such as a smartphone may have a function of transmitting such data to a cloud server by wireless communication.

[0027] Each component of the hardware configuration 110 is driven by a battery 31 such as a dry cell or a rechargeable battery. A commercial power source may be used as necessary. The processor 40 may have, for example, a function of displaying the measurement result of the infrared sensor 22 on the display unit 16 when the push button 17 for temperature measurement is operated and the distance to the object to be measured MT measured by the distance sensor 24 is within an appropriate range, and a function of causing the warning unit 32 to emit a warning using a buzzer or a light-emitting element when the distance to the object to be measured MT is outside the appropriate range.

[0028] [Embodiment 2] Fig. 5 shows a portable temperature measuring device 200 according to embodiment 2. Fig. 5(a) is a front view of the portable temperature measuring device 200, and Fig. 5(b) is a rear view. Since the configuration is the same as in embodiment 1 except for the aiming unit 50, a description of the common parts will be omitted.

[0029] 5, in the portable temperature measuring device 200 according to the second embodiment, a recess (concave) 51 is provided as an aiming portion 50 from the first surface 13 to the second surface 14. The "aiming portion" of the second embodiment is configured as a recess 51 recessed inward from the outer periphery 12. In the case of the recess 51, it is easier to recognize the measurement position accuracy because the measurement point can be seen from the recess 51. Also, the aiming portion 50 and the first opening 23 can be brought closer than in the case of the protrusion 26.

[0030] [Embodiment 3] Fig. 6 shows a portable temperature measuring device 300 according to embodiment 3. Fig. 6(a) is a front view of the portable temperature measuring device 300, and Fig. 6(b) is a rear view. Since the configuration is the same as in embodiment 1 except for the aiming unit 50, a description of the common parts will be omitted.

[0031] 6, in the portable temperature measuring device 300 according to the third embodiment, a mark 52 is provided as an aiming unit 50 within the first surface 13 near the outer periphery 12 on the surface. The "aiming unit" of the third embodiment is configured in the form of a mark 52 provided on the surface within the first surface 13. This mark 52 may be a colored portion formed by printing or attaching a film, or may be a depression or protrusion provided on the first surface 13. Since it is not necessary to provide a portion protruding outward from the outer periphery of the main body 10 or a large depression extending from the first surface 13 to the second surface 14, the configuration is simplified.

[0032] [Embodiment 4] Fig. 7 shows a portable temperature measuring device 400 according to embodiment 4. Fig. 7(a) is a front view of the portable temperature measuring device 400, Fig. 7(b) is a rear view, and Fig. 7(c) is a left side view. Since the configuration is the same as in embodiment 1 except for the aiming unit 50, a description of the common parts will be omitted.

[0033] As shown in Fig. 7, in the portable temperature measuring device 400 according to the fourth embodiment, a protrusion 53 is provided as an aiming section 50 on the surface near the outer periphery 12 within the second surface 14. The protrusion 53 is formed by protruding from the outer periphery of the second surface beyond the third surface. Since the protrusion 53 can be disposed close to the object to be measured MT, the measurement position accuracy can be improved. In addition, since the protrusion 53 is disposed at a position away from the operator, there is an advantage that the operator does not feel a sense of pressure.

[0034] [Variations] (1) In the above-described embodiments, the first opening 23 and the aiming unit 50 are located on the outer periphery of the main body 10 on the side opposite the gripping unit 11, on the imaginary center line CL along the extension direction of the gripping unit 11. In this position, the center of the main body 10 is aligned with the object to be measured MT, allowing measurement in the most natural way. However, the present invention is not limited to this. For example, the positions of the first opening 23 (infrared sensor 22) and the aiming unit 50 may be shifted to the left or right from the imaginary center line CL, and in this case as well, the same function and effect as the aiming unit can be obtained.

[0035] (2) In the above-described embodiments, the outer peripheral shape of the first surface 13 of the main body 10 is substantially circular. However, the present invention is not limited to this. For example, the outer peripheral shape of the first surface 13 of the main body 10 may be an ellipse, a rectangle, a diamond, or any other shape that provides a sufficient surface area, and in this case, the same actions and effects as those described above can be obtained.

[0036] (3) In each of the above embodiments, a thermometer for measuring the temperature of a human has been described as an example of a portable temperature measuring device. However, the present invention is not limited to this, and can be applied to any device that measures the temperature of an object. [Explanation of symbols]

[0037] 10...main body, 11...grip, 12...periphery, 13...first surface, 14...second surface, 15...third surface, 16...display, 17,18,20...push button, 19...ring button, 21...operation unit, 22...infrared sensor, 23...first opening, 24...distance sensor, 24a...light emitting element, 24b...light receiving element, 25...second opening, 26...projection, 30...circuit board, 31...battery, 32...alarm unit, 33,34...waveguide, 33a,34a...opening, 40...processor, 41...memory, 42...storage, 43...storage unit, 44...input / output I / F, 45...communication I / F, 50...aiming unit, 51...recess, 52...mark, 53...projection, 100,200,300,400...portable temperature measuring device

Claims

1. A portable temperature measuring device including a main body having an infrared sensor therein and a grip portion, the main body has a first surface, a second surface opposite to the first surface, a display unit and an operation unit disposed on the first surface, a first opening disposed on the second surface for guiding infrared light to the infrared sensor, and an aiming unit for aiming at a measurement location on an object to be measured; A portable temperature measuring device characterized in that, when viewed from the first surface side, the width of the first surface is larger than the width of the gripping portion in a direction perpendicular to the extension direction of the gripping portion, the first opening is positioned near the outer periphery of the main body portion on the side opposite the gripping portion, and the aiming portion is provided on the outer periphery of the main body portion near the first opening when the first surface is viewed in a plane.

2. 2. The portable temperature measuring device according to claim 1, wherein the first opening and the aiming portion are located on an imaginary center line along an extension direction of the grip portion.

3. 3. The portable temperature measuring device according to claim 1, wherein any radial dimension including the center of the first surface is larger than the dimension of the maximum distance between the first surface and the second surface.

4. 3. The portable temperature measuring device according to claim 1, wherein the aiming portion is a protrusion that protrudes outward from the outer periphery.

5. 3. The portable temperature measuring device according to claim 1, wherein the aiming portion is a recess recessed inward from the outer periphery.

6. 3. The portable temperature measuring device according to claim 1, wherein the aiming portion is a mark provided on a surface within the first surface.

7. 3. The portable temperature measuring device according to claim 1, wherein the operation unit is disposed between the display unit and the grip unit on the first surface.

8. the main body has a distance sensor therein including a light emitting element and a light receiving element, 3. The portable temperature measuring device according to claim 1, further comprising a second opening provided on the second surface near the first opening for guiding light to the distance sensor.

Images