Bluetooth keyboard with ultrathin nixie tube capable of displaying electric quantity

Abstract

The utility model discloses a Bluetooth keyboard with an ultra-thin nixie tube for displaying electric quantity. The Bluetooth keyboard comprises a keyboard upper cover, a lithium battery, a PCBA mainboard and a keyboard lower cover, the keyboard upper cover and the keyboard lower cover are covered to form an accommodating space, and the lithium battery and the PCBA mainboard are arranged in the accommodating space; the PCBA main board is electrically connected with the lithium battery, an ultra-thin display tube is integrated on the PCBA main board and used for displaying the residual electric quantity of the lithium battery, and a mounting hole allowing the ultra-thin nixie tube to be embedded is formed in the keyboard upper cover in a penetrating mode. According to the utility model, the ultra-thin nixie tube capable of directly displaying the electric quantity of the battery is designed on the keyboard, and the electric quantity of the battery can be clearly displayed on the ultra-thin nixie tube of the keyboard body, so that a user can clearly see the residual electric quantity and is reminded to prepare for charging in advance, and a guarantee is provided for outdoor use; in addition, the ultrathin nixie tube is integrally used and can adapt to most leather sheath keyboards, so that the thickness of the whole machine of the product is not influenced.

Description

Technical Field

[0001] The utility model belongs to the technical field of Bluetooth keyboards, in particular to a Bluetooth keyboard with an ultra-thin digital tube for displaying power. Background Art

[0002] A Bluetooth keyboard is a keyboard that uses the Bluetooth protocol for wireless transmission and performs Bluetooth communication within an effective range (within 10m). It is actually a short-range radio technology. Using "Bluetooth" technology, it can effectively simplify the communication between mobile communication terminal devices such as PDAs, laptops and mobile phones.

[0003] The traditional single-body Bluetooth keyboards currently on the market do not have a clear display of battery power. They only rely on flashing lights to remind users to charge when the battery is low. The battery level indication is not clear, which is not conducive to users' advance preparation and affects the portability of the product. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the utility model aims to provide a Bluetooth keyboard with an ultra-thin digital tube for displaying power.

[0005] The technical solution adopted by the utility model is as follows: a Bluetooth keyboard with an ultra-thin digital tube for displaying power, comprising a keyboard upper cover, a lithium battery, a PCBA mainboard and a keyboard lower cover; the keyboard upper cover and the keyboard lower cover are combined to form an accommodating space, and the lithium battery and the PCBA mainboard are placed in the accommodating space; the PCBA mainboard is electrically connected to the lithium battery, and an ultra-thin display tube is integrated on the PCBA mainboard for displaying the remaining power of the lithium battery.

[0006] In a preferred embodiment, a mounting hole is formed through the keyboard cover to allow the ultra-thin digital tube to be embedded.

[0007] In a preferred embodiment, the thickness of the ultra-thin digital tube is 2.5 mm.

[0008] In a preferred embodiment, a touch panel is further included, and the touch panel is electrically connected to the PCBA mainboard via an FPC, and a slot for embedding the touch panel is provided on the keyboard cover.

[0009] In a preferred embodiment, it also includes a key core module, which is electrically connected to the PCBA mainboard, and the keyboard cover is also provided with key holes that allow keys in the key core module to extend out.

[0010] In a preferred embodiment, a charging interface is further included, and the charging interface is electrically connected to the PCBA mainboard via a connecting line.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0012] 1. In the utility model, an ultra-thin digital tube that can directly display the battery power is designed on the keyboard. The battery power can be clearly displayed on the ultra-thin digital tube of the keyboard body, so that the user can clearly see the remaining power, so as to remind the user to prepare for charging in advance, and provide protection for outdoor use;

[0013] 2. In the present invention, ultra-thin digital tubes are used as a whole, which can be adapted to most leather case keyboards and will not affect the thickness of the entire product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the overall exploded three-dimensional structure of the utility model;

[0016] Figure 3 The utility model is a circuit diagram of the ultra-thin digital tube power display.

[0017] Markings in the figure: 1-keyboard cover, 101-mounting hole, 2-keyboard cover, 3-touchpad, 4-ultra-thin digital tube, 5-key core module, 6-FPC, 7-lithium battery, 8-PCBA motherboard, 9-charging port. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] A Bluetooth keyboard with an ultra-thin digital tube that displays power, referring to Figure 1-3 , including a keyboard upper cover 1, a lithium battery 7, a PCBA mainboard 8 and a keyboard lower cover 2. The keyboard upper cover 1 and the keyboard lower cover 2 are covered to form an accommodating space (the keyboard upper cover 1 and the keyboard lower cover 2 are preferably fixed by AB glue), the lithium battery 7 and the PCBA mainboard 8 are placed in the accommodating space, the PCBA mainboard 8 is electrically connected to the lithium battery 7, and an ultra-thin display tube 4 is integrated on the PCBA mainboard 8 to display the remaining power of the lithium battery 7. An ultra-thin digital tube 4 that can directly display the battery power is designed in the Bluetooth keyboard, and the battery power can be clearly displayed on the ultra-thin digital tube 4 of the keyboard body, so that the user can clearly see the remaining power, so as to remind the user to prepare for charging in advance, and provide protection for outdoor use.

[0020] It should be mentioned that the principle of the ultra-thin digital tube 4 display is that the PCBA mainboard 8 reads the voltage division of the battery at present, and then calculates and compares it through AD conversion and internal algorithm, and finally obtains the power, and then displays the corresponding power on the digital tube. For example, the operating voltage range of the battery is set to 3.0V~4.2V, and the AD conversion value of the corresponding battery voltage I0 port is read with 3.3V as 0% and 4.2 as 100%, and then the battery voltage is calculated according to the hardware circuit, and then the current battery voltage is set to the corresponding percentage according to the battery charge and discharge curve, and the current battery percentage is displayed on the digital tube LED for customers to know. The above-mentioned circuits and algorithms are all existing technologies that have been realized, and will not be elaborated in detail.

[0021] Among them, the PCBA mainboard 8 is integrated with a Bluetooth component.

[0022] Furthermore, a mounting hole 101 is formed through the keyboard cover 1 to allow the ultra-thin digital tube 4 to be embedded. The mounting hole 101 can limit the mounting position of the ultra-thin digital tube 4. The ultra-thin digital tube 4 can also display the data of the remaining battery power when it is exposed outside the mounting hole 101.

[0023] Furthermore, the thickness of the ultra-thin digital tube 4 is 2.5 mm, and the entire device uses an ultra-thin digital tube, which can be adapted to most leather keyboards, thereby not affecting the thickness of the entire product.

[0024] Furthermore, it also includes a touchpad 3, which is electrically connected to the PCBA mainboard 8 through FPC6. The keyboard cover 1 is provided with a slot for embedding the touchpad 3. It also includes a key core module 5, which is electrically connected to the PCBA mainboard 8. The keyboard cover 1 is also provided with a key slot for extending the keys in the key core module 5.

[0025] Furthermore, it also includes a charging interface 9, which is electrically connected to the PCBA mainboard 8 through a connecting line. A transmission line and a charging IC are also provided between the lithium battery 7 and the PCBA mainboard 8. An external charger or power supply is connected through the charging interface 9 to charge the lithium battery 7, and the lithium battery 7 provides a power source for the overall work.

[0026] The charging interface 9 may be a USB interface or other types of interfaces, which are not limited here.

[0027] In addition, this embodiment can also be expanded, not only can the power be displayed on the digital tube, but also the content to be displayed can be sent to the driver ultra-thin digital tube 4 through the serial port RX / TX, so that it can be displayed as required. For example: it can display voltage, current, temperature and humidity, and time, etc. Of course, these functions require the addition of corresponding sensing modules (such as temperature and humidity, an additional temperature and humidity sensor is added to the Bluetooth keyboard), which will not be repeated here.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A Bluetooth keyboard with an ultra-thin digital tube for displaying power, characterized in that: It comprises a keyboard upper cover, a lithium battery, a PCBA mainboard and a keyboard lower cover; the keyboard upper cover and the keyboard lower cover are combined to form an accommodation space, and the lithium battery and the PCBA mainboard are placed in the accommodation space; the PCBA mainboard is electrically connected to the lithium battery, and an ultra-thin display tube is integrated on the PCBA mainboard for displaying the remaining power of the lithium battery.

2. The Bluetooth keyboard with an ultra-thin digital tube for displaying power as claimed in claim 1, characterized in that: The keyboard upper cover is provided with a mounting hole for embedding the ultra-thin digital tube.

3. The Bluetooth keyboard with an ultra-thin digital tube for displaying power as claimed in claim 1, characterized in that: The thickness of the ultra-thin digital tube is 2.5 mm.

4. The Bluetooth keyboard with an ultra-thin digital tube for displaying power as claimed in claim 1, characterized in that: It also includes a touch panel, which is electrically connected to the PCBA mainboard through an FPC, and the keyboard upper cover is provided with a slot for embedding the touch panel.

5. The Bluetooth keyboard with an ultra-thin digital tube for displaying power as claimed in claim 1, characterized in that: It also includes a key core module, which is electrically connected to the PCBA mainboard. The keyboard cover is also provided with key holes for extending keys in the key core module.

6. The Bluetooth keyboard with an ultra-thin digital tube for displaying power as claimed in claim 1, characterized in that: It also includes a charging interface, which is electrically connected to the PCBA mainboard through a connecting line.

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