Mobile device tray

Abstract

To provide a tray for a portable terminal which is highly practical and can appropriately monitor for fire from a portable terminal such as a smartphone during charging. [Solution] The tray 1 for mobile devices comprises a housing 2 having a flat, roughly plate-like shape, a storage space 3 on the top side of the housing 2 in which the mobile device is stored, a placement surface 4 on the bottom side of the storage space 3 on which the mobile device is placed, a heat detection sensor 5 that detects the heat of the mobile device placed on the placement surface 4, and an alarm function 6 that emits a warning sound when the heat detection sensor 5 detects a temperature above a predetermined level.

Description

[Technical Field]

[0001] The present invention relates to a tray for a mobile device on which a mobile device such as a smartphone is placed, and more particularly to a tray for a mobile device having a fire prevention function. [Background technology]

[0002] In recent years, there have been many accidents where lithium-ion batteries, such as smartphones, are overcharged, overcurrented, or undergo abnormal internal chemical reactions while charging, leading to fires and explosions in the worst cases, as seen in mobile device 10 shown in Figure 7(a). Among these cases, there have been cases where an uneven reaction occurs inside the lithium-ion battery, generating gas that expands and pushes the battery case apart, ultimately resulting in damage and fire, as seen in mobile device 11 in Figure 7(b). Due to these frequent accidents, many people are concerned about placing their mobile phone chargers near their pillows and sleeping with them charging.

[0003] As a countermeasure against fires from mobile terminals, for example, a battery storage pack that can safely store a battery pack has been disclosed (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6090197 Summary of the Invention [Problem to be solved by the invention]

[0005] The following measures have been widely known to reduce the risk of battery expansion and fire in mobile devices such as smartphones.

[0006] (1) To ensure thorough temperature control, avoid high temperatures and direct sunlight, and do not use or charge the battery in a hot car, in direct sunlight, or near a heating appliance. (2) To avoid overcharging and over-discharging, do not leave the battery at 100% or 0% for long periods of time, and charge and discharge frequently. (3) To prevent heat generation while charging, remove the case and charge the battery in a well-cooled place. (4) Check the battery condition regularly to make sure there is no swelling, floating at the back, strange odor, excessive heat, etc., and if you notice any swelling, stop using it immediately.

[0007] However, all of these measures impose a management burden on the mobile terminal user, and it cannot be denied that they lack practicality.

[0008] The present invention was made in consideration of the above-mentioned problems, and aims to provide a tray for mobile devices that is highly practical and can appropriately monitor for fires from mobile devices such as smartphones that are being charged. [Means for solving the problem]

[0009] In order to solve the above problems, the present invention is a tray for a mobile terminal, characterized by comprising a housing having a flat, approximately plate-shaped body, a storage space on the top side of the housing in which the mobile terminal is stored, a mounting surface on the bottom side of the storage space on which the mobile terminal is placed, a heat detection sensor that detects the heat of the mobile terminal placed on the mounting surface, and an alarm function that emits a warning sound when the heat detection sensor detects a temperature above a predetermined level.

[0010] In this tray for mobile devices, the storage space has a flat rectangular shape, the housing has four upright walls surrounding the storage space, one of which is a wide upright wall, and it is preferable that one of the upright walls has a recessed groove formed therein for placing cables connected to the mobile device.

[0011] In this tray for mobile devices, it is preferable that the heat detection sensor has its sensing surface located on the inner surface of the wide standing wall, and the alarm function has its speaker located on the upper surface of the wide standing wall, and that when the heat detection sensor detects a temperature of 70°C or higher, an alarm sound is emitted through the speaker.

[0012] In this tray for mobile terminals, it is preferable that the heat detection sensor has its sensing surface located on the placement surface, and the alarm function has its speaker located on the upper surface of the wide upright wall, and that when the heat detection sensor detects a temperature of 70°C or higher, an alarm sound is emitted through the speaker. [Effects of the Invention]

[0013] The portable device tray of the present invention comprises a flat, roughly plate-shaped housing, a storage space on the top side of the housing for storing the portable device, a mounting surface on the bottom side of the storage space for the portable device, a heat sensor for detecting the heat of the portable device placed on the mounting surface, and an alarm function that sounds an alarm if the heat sensor detects a temperature above a predetermined level. This configuration makes the portable device tray of the present invention highly practical and allows for appropriate monitoring of the risk of fire from portable devices such as smartphones while they are being charged. [Brief explanation of the drawings]

[0014] [Figure 1] 1A and 1B are perspective views of a tray for a mobile terminal according to a first embodiment of the present invention. [Figure 2] 10(a) and 10(d) are explanatory views of the front side of the same portable terminal tray. [Figure 3] FIG. 2A is an explanatory diagram of the front side of the portable terminal tray, and FIG. 2B is an explanatory diagram of the back side of the portable terminal tray. [Figure 4] 10(a) and 10(b) are explanatory diagrams of the same portable terminal tray. [Figure 5] 10(a) and 10(b) are perspective views of a tray for a mobile terminal according to a second embodiment of the present invention. [Figure 6]10(a) and 10(b) are reference diagrams showing color variations of the tray for a mobile terminal. [Figure 7] (a) and (b) are photographs of the mobile device (smartphone) that caught fire and exploded. DETAILED DESCRIPTION OF THE INVENTION

[0015] (Embodiment 1) A portable terminal tray according to a first embodiment of the present invention will be described with reference to Figures 1 to 4. The portable terminal tray according to the present invention has a convenient function of monitoring for fires from portable terminals such as smartphones while they are charging, for example, while sleeping.

[0016] First, the overall configuration of the portable terminal tray 1 according to the first embodiment will be described with reference to Fig. 1. As shown in Fig. 1, the portable terminal tray 1 includes a housing 2 having a generally flat plate shape, a storage space 3 on the top side of the housing 2 for storing a portable terminal M, a mounting surface 4 on the bottom side of the storage space 3 for placing the portable terminal M, a heat detection sensor 5 for detecting heat from the portable terminal M placed on the mounting surface 4, and an alarm function 6 for emitting an alarm sound when the heat detection sensor 5 detects a temperature equal to or higher than a predetermined temperature.

[0017] As shown in Fig. 2, the housing 2 has a generally rectangular, flat, plate-like shape when viewed from above, with dimensions of, for example, 120 mm wide, 216 mm long, and 15 mm high. The material of the housing 2 is preferably fire-resistant, and examples include (1) melamine resin (melamine: often used in tableware and ashtrays, it is shatter-resistant and heat-resistant), which is used in ashtrays and electrical equipment, and (2) phenolic resin (bakelite: hard and has low molding flexibility but is highly heat-resistant and electrically insulating). The housing 2 is compact and lightweight, making it very easy to carry.

[0018] The housing 2 has four standing walls 2a to 2d that surround the storage space 3 on all sides, one of which is a wide standing wall 2a, and the heat sensor 5 and the alarm function 6 are provided on the wide standing wall 2a.

[0019] As shown in Fig. 3(a), a power lamp 7a may be provided on the housing 2, which lights up blue when the remaining battery charge is 90% or more and red when the remaining battery charge is 10% or less. Also, as shown in Fig. 3(b), a physical ON / OFF switch 8, which is not a touch switch, is provided on the bottom surface of the housing 2.

[0020] As shown in Fig. 4(a), a battery storage section 7 capable of storing AA or AAA batteries 7b is formed on the back side of the wide standing wall 2a. The portable terminal tray 1 is preferably capable of operating for at least one year on a single battery. As shown in Fig. 4(b), the portable terminal tray 1 is available in various colors, such as white and black.

[0021] One of the upright walls 2a to 2d of the housing 2 (the upright wall 2c in the first embodiment) is formed with a recessed groove 9 through which cables C connected to the mobile terminal M are placed and passed.

[0022] The storage space 3 has a flat rectangular parallelepiped shape and is a recessed space formed on the upper surface side of the housing 2. The storage space 3 only needs to be large enough to accommodate a mobile terminal M such as a smartphone, and as shown in Fig. 2, it may have dimensions of, for example, a width of 96 mm, a length of 176 mm, and a height of 10 mm. The placement surface 4 is located on the bottom surface of the storage space 3.

[0023] The heat detection sensor 5 has its sensing surface 5a disposed on the inner surface of the wide standing wall 2a, and detects heat rays radiated from the mobile terminal M housed in the internal space 3 (placed on the placement surface 4), and outputs a detection signal according to the detected temperature, thereby monitoring the heat generation state of the mobile terminal M. The heat detection sensor 5 is, for example, a radiation temperature sensor that measures infrared energy radiated from the mobile terminal M, and detects temperature changes in the mobile terminal M and converts them into an electrical signal to measure the temperature.

[0024] The alarm function 6 outputs a warning sound or voice announcement from the speaker 6a to notify the user that the temperature of the mobile terminal M detected by the heat sensor 5 exceeds an upper limit. The speaker 6a is located on the upper surface of the wide standing wall 2a. More specifically, while the above-mentioned ON / OFF switch 8 is ON, the heat sensor 5 is in 24-hour continuous monitoring mode, and if it detects a temperature of 70°C or higher, an alarm sound (volume MAX 130dB) is sounded via the speaker 6a.

[0025] (Embodiment 2) Another embodiment of the portable terminal tray 1 according to the present invention will be described with reference to Figures 5 and 6. In this second embodiment, the sensing surface 5b of the heat detection sensor 5 is disposed on the placement surface 4 side. This sensing surface 5b does not need to be visible from the outside. With this configuration, the sensing surface 5b of the heat detection sensor 5 is closer to the battery portion of the portable terminal, and the overheating or ignition state of the portable terminal M can be detected more reliably.

[0026] As explained above, the portable terminal tray 1 according to this embodiment is highly practical, battery-powered, and capable of monitoring for fires in the portable terminal M 24 hours a day. Therefore, if the portable terminal M becomes hot while the user is sleeping, the alarm function 6 can alert the user. In other words, the portable terminal tray 1 serves as a measure to monitor for expansion or explosion of the smartphone or battery while it is being charged, and the user can feel safe simply by placing the portable terminal M on the placement surface 4 of this portable terminal tray 1 as a daily habit.

[0027] Furthermore, the portable terminal tray 1 does not require a large space, has a very easy-to-use structure, is lightweight and compact, can be easily carried, does not require space, and is very user-friendly.

[0028] The present invention is not limited to the configuration of the above embodiment, and various modifications are possible within the scope of the invention. For example, the housing 2, storage space 3, and mounting surface 4 of the portable terminal tray 1 may have different shapes as long as they have the same functions. [Explanation of symbols]

[0029] 1 Mobile Device Tray 2. Case 2b,2c,2d Standing wall 2a wide standing wall 3. Containment space 4. Placement surface 5. Heat sensor 5a,5b Sensing surface 6. Alarm function 6a Speaker 9 Groove M mobile device C Cables

Claims

1. A tray for a mobile terminal, a housing having a flat, approximately plate-like shape; a storage space on the upper surface side of the housing for storing a mobile terminal; a placement surface on the bottom side of the storage space on which the mobile terminal is placed; a heat sensor that detects heat from the mobile terminal placed on the placement surface; The tray for a mobile terminal is characterized by having an alarm function that issues an alarm sound when the heat sensor detects a temperature above a predetermined level.

2. The storage space has a flat rectangular parallelepiped shape, the housing has four upright walls surrounding the storage space, one of which is a wide upright wall; 2. The tray for a portable terminal according to claim 1, wherein one of said upright walls is formed with a recessed groove for placing cables connected to said portable terminal.

3. The heat detecting sensor has a sensing surface disposed on the inner surface of the wide standing wall, The alarm function has a speaker disposed on the upper surface of the wide standing wall, 3. The tray for a portable terminal according to claim 2, wherein an alarm sound is generated through the speaker when the heat sensor detects a temperature of 70[deg.] C. or higher.

4. the heat detecting sensor has a sensing surface disposed on the placement surface; The alarm function has a speaker disposed on the upper surface of the wide standing wall, 3. The tray for a portable terminal according to claim 2, wherein an alarm sound is generated through the speaker when the heat sensor detects a temperature of 70[deg.] C. or higher.

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