JPH0669779U - Electronic thermometer - Google Patents

Abstract

(57) [Abstract] [Purpose] The displayed characters are enlarged optically to improve their visibility. [Structure] Having a larger outer shape than the display portion of the display unit 15,
A transparent window portion 3 formed in a lens shape on the main body case 2 so as to face the display portion 15, and a display that is disposed between the transparent window portion 3 and the display portion 15 and covers the periphery of the display portion of the display portion 15. It consists of a frame 16 and the top of the surface of the transparent window 3 is projected from the surface of the main body case 2.The display characters of the display 15 are enlarged in the transparent window 3 and its visibility is improved. Further, by providing the display frame portion 16, even if the transparent window portion 3 is formed to be larger than the display portion 15, it is possible to prevent the wiring around the display portion 15 from being exposed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electronic clinical thermometer that digitally displays a temperature measurement result, and more particularly to an electronic clinical thermometer that improves a display window portion of a main body case to improve visibility of a digital display on the display portion.

[0002]

[Prior art]

 Electronic thermometers generally include a temperature sensing unit that detects body temperature and converts the detected input temperature into an electric signal, and a temperature measuring unit that digitizes the electric signal converted by the temperature sensing unit to calculate a body temperature value. It consists of a calculation circuit, a display section that displays the temperature value that is the calculation result in this temperature measurement calculation circuit, a power supply battery that supplies power to each of the above sections, and a main body case that stores these sections. Further, the main body case is provided with a switch portion for supplying electric power of the power supply battery. The electronic thermometer is designed to be lightweight and compact from the viewpoint of ease of handling and portability.

[0003]

[Problems to be solved by the device]

 However, since the conventional electronic thermometer is designed compactly, the display is also made compact accordingly, and there is a problem that the digital display of the body temperature value is difficult to read. Even if an attempt is made to adopt a display device with large display characters to solve this problem, the size of the display device that can be used is limited due to the size of the main body case, and even if the display characters are optically enlarged. However, there is a problem that it is difficult to identify the displayed character because the enlargement ratio differs between the central part and the end part of the displayed character.

The present invention has been made in view of the above circumstances, and an object thereof is to provide an electronic thermometer that optically enlarges a displayed character and improves its visibility.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention is an electronic thermometer in which a temperature sensing part, a temperature measurement calculation circuit, a display, and a power supply battery are built in a flat body case, which is larger than the display part of the display. A transparent window portion having an outer shape and formed in a lens shape in the main body case facing the display unit, and a display portion of the display unit disposed between the transparent window unit and the display unit. It is characterized in that it comprises a display frame portion that covers the periphery, and the top of the surface of the transparent window portion projects from the surface of the main body case.

[0006]

[Action]

 Since the present invention is configured as described above, the transparent window portion is larger than the display unit, and the top of the surface of the transparent window unit projects from the surface of the main body case, so that the display characters on the display unit are transparent. In addition, the visibility is improved and the display frame is provided to prevent the wiring around the display from being exposed even if the transparent window is made larger than the display.

[0007]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view of the appearance of an electronic thermometer according to an embodiment of the present invention, FIG. 2 is a front view of the appearance, and FIG. 3 is a bottom view of the back cover when the back cover is opened.

In the above figure, the electronic thermometer 1 has a main body case 2 made of synthetic resin and having an elongated hollow body shape. The main body case 2 has a transparent window portion 3 formed of a transparent resin on the upper surface and an opaque resin. The transparent window 3 and the housing 4 are integrally formed by, for example, a two-color molding method. Further, one end of the main body case 2 is formed in a thin diameter shape having a circular cross section, and a temperature measuring body 5 including a thermistor for converting temperature information into an electric signal is arranged at this one end. This temperature sensing element 5 is covered and protected by a metal cap 6 such as aluminum, and the joint between the temperature sensing element 5 and the metal cap 6 has a small amount of adhesive with good heat conductivity for the purpose of fixing and heat conduction. While being filled. On the other hand, a battery case 8 for accommodating the battery 7 is attached by fitting to the other end portion of the main body case 2 which has a large diameter and extends in a flat tubular shape from one end portion thereof. Further, an opening (not shown) is formed in the vicinity of the transparent window portion 3, and the operation switch 9 made of conductive rubber and insulating rubber is attached to the opening portion. An opening 10 for adjusting a circuit, which will be described later, is formed on the back surface opposite to the formed surface, and the opening 10 is covered with a back lid 11. Reference numeral 11a is a hole for attaching the back cover 11.

Reference numeral 12 denotes a printed circuit board which is provided inside the main body case 2 and on which a temperature measuring calculation circuit for calculating a body temperature value based on the body temperature data detected by the temperature measuring body 5 is mounted. The two lead wires 14 of the temperature sensing element 5 are soldered at the soldering part 13 of 12 to connect the printed circuit board 12 and the temperature sensing element 5, and the temperature measurement calculation circuit mounted on the printed circuit board 12 The temperature measurement value calculated based on the temperature information output from the temperature sensing element 5 is displayed on the display section 15 which is, for example, a liquid crystal display and is visually recognized through the transparent window section 3 which is larger than the display section 15. Between the transparent window portion 3 and the display portion 15, the portion of the display portion 15 facing the display portion is transparent, the periphery of this transparent portion is formed opaque, and the outer shape of the display portion of the display portion 15 is A display frame portion 16 having a large outer shape is arranged.

Further, chip electronic parts such as LSI, resistors and capacitors are mounted on the printed circuit board 12 to form an electronic circuit such as a temperature measurement calculation circuit. The printed circuit board 12 is housed in the battery case 8. Power is supplied from the battery 7 that is connected via a connecting member 17 made of a metal resin mold component, for example, and the temperature measurement calculation circuit calculates the temperature value based on the temperature information detected by the temperature measurement element 5 Is displayed on the display unit 15. When the temperature measurement ends, as shown in FIG. 4, the end of temperature measurement is notified via the buzzer 18 attached to the back cover 11. As shown in FIG. 5, the buzzer 18 is connected to the battery 7 via the connecting member 17, and a temperature measurement end signal is supplied from the temperature measurement calculation circuit. When the temperature measurement end signal is supplied, the buzzer sounds the temperature. Notify the end.

Next, the essential part of the present invention will be described with reference to the AA sectional view of FIG. 3 shown in FIG. 6 and the BB sectional view of FIG. 3 shown in FIG.

As shown in FIG. 6 and FIG. 7, the surface of the transparent window portion 3 is formed in a lens shape so that an optical expanding action and effect can be obtained, and the top is projected from the surface of the housing 4, Also, the back surface is formed flat. Further, the inside of the case 4 facing the case back 11 is formed to have a step structure having a plurality of grooves and steps, and the display frame 16 is formed integrally with the transparent window 3. The first display portion 15 is positioned in the first groove portion 4a and placed on the transparent window portion 3, and the display portion 15 is placed on the first step portion 4b adjacent to the first groove portion 4a via the spacer 19 and The second groove portion 4c adjacent to the first step portion 4b is positioned and arranged on the display frame portion 16.

By the way, since the first groove portion 4a is formed in a shape along the outer shape of the transparent window portion 3, at both ends of the transparent window portion 3, as shown in FIG. Although the 4b is formed, the diameter of the first groove portion 4a becomes larger toward the center of the transparent window portion 3, and the first step portion 4b disappears in the central portion and the first groove portion 4a and the second groove portion 4a are formed. The groove portion 4c of is integrated and has the same diameter. That is, the display unit 15 is arranged on the display frame unit 16 in such a manner that the four corners protrude from the display frame unit 16. However, even if the display unit 15 has a shape that protrudes from the display frame unit 16 at the four corners, the display frame unit 16 has a transparent portion that is opaque around the display unit 15 and faces the display unit. The wiring of 15 will not be exposed.

The printed circuit board 12 is held by the second step portion 4d and the third groove portion 4e formed in the range from the periphery of the display portion 15 to the operation switch 9 and is also displayed by the conductive rubber 20. It is fixed to the body case 2 by thermal crimping while maintaining the electrical connection with 15. At the time of this fixing, the conductive rubber 20 and the operation switch 9 serve as cushions when caulking.

As described above, the transparent window portion 3 has a lens-like cross-sectional shape, and the top of the lens portion on the front surface side is formed so as to project from the surface of the housing 4, so that it is displayed on the display portion 15. The temperature measurement result obtained is optically expanded, and the viewing angle of the display section 15 is widened to improve the visibility. Further, by making the transparent window section 3 larger than the display section 15, the temperature measurement result is favorably expanded.

Further, since the display frame portion 16 is formed to be opaque around the transparent portion facing the display portion of the display portion 15, the opaque portion has a color different from that of the main body case 2, or the opaque portion is not formed. It is possible to decorate the electronic thermometer, and it is easy to improve the identification of the electronic thermometer and make a visual image change.

In the above embodiment, the transparent window portion 3 has the shape of a lens with a semi-cylindrical cross section. However, the shape is not limited to this. Of course, in this case, it is possible to adopt a structure in which the back cover 11 is not attached.

Further, the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made without departing from the gist of the present invention.

[0020]

[Effect of device]

 As described above in detail, according to the electronic thermometer of the present invention, the transparent window is larger than the display, and the top of the surface of the transparent window is projected from the surface of the body case. The display character can be enlarged in the transparent window and its visibility can be improved.Also, by providing the display frame, even if the transparent window is made larger than the display, It is possible to prevent exposure of the wiring, etc.

[Brief description of drawings]

FIG. 1 is a plan view of the appearance of an electronic thermometer according to an embodiment of the present invention.

FIG. 2 is a front view of the appearance of an electronic thermometer according to an embodiment of the present invention.

FIG. 3 is a bottom view of the electronic thermometer when the back cover is opened.

FIG. 4 is a view showing a component mounting surface of a back cover.

FIG. 5 is a diagram for tightening the positional relationship between the connection member, the battery, and the buzzer.

6 is a cross-sectional view taken along the line AA of FIG.

7 is a sectional view taken along line BB of FIG.

[Explanation of symbols]

 1… Electronic thermometer 2… Main body case 3… Transparent window 15… Display (display) 16… Display frame

Claims (1)

[Scope of utility model registration request] 1. An electronic clinical thermometer having a temperature sensing part, a temperature measuring calculation circuit, a display, and a battery built in a flat body case, and having an outer shape larger than the display part of the display and facing the display. Then, a transparent window portion formed in the main body case in a lens shape, and a display frame portion disposed between the transparent window portion and the display unit and covering the periphery of the display portion of the display portion, An electronic thermometer, wherein the top of the surface of the transparent window portion projects from the surface of the main body case.