CN210199708U

CN210199708U - Temperature and humidity monitoring wireless keyboard

Info

Publication number: CN210199708U
Application number: CN201921460714.5U
Authority: CN
Inventors: Guosheng Xiao; 肖国晟; Fahui Wen; 文发慧; Denghua Wang; 王登华; Shengtang Wu; 吴胜堂
Original assignee: Dongguan Mattel Electronics Co Ltd
Current assignee: Dongguan Mattel Electronics Co Ltd
Priority date: 2019-09-03
Filing date: 2019-09-03
Publication date: 2020-03-27
Anticipated expiration: 2029-09-03

Abstract

The utility model discloses a temperature and humidity monitoring wireless keyboard belongs to computer accessory technical field. This wireless keyboard is through setting up the circuit board at the right side top of its inner space to set up humiture monitoring module on the circuit board, regard as humiture micro control unit through independent MCU, and cooperate humiture sensor and display element cooperation, realized the real-time supervision to keyboard operational environment humiture. Simultaneously also rationally utilize the inner space of keyboard, need not to reduce the function of keyboard itself or increase the volume of keyboard, promoted the convenience of keyboard.

Description

Temperature and humidity monitoring wireless keyboard

Technical Field

The utility model relates to a computer accessory technical field especially relates to a temperature and humidity monitoring wireless keyboard.

Background

With the development of science and technology and the improvement of living standard of people, electronic products are popularized to enter thousands of households, and a keyboard is widely applied to computers and various electronic product devices for inputting texts and commands as the most common input device of the computers, so that the keyboard plays a very important role in the field of external equipment, and is effectively convenient for man-machine interaction between operators and the devices.

At present, a keyboard structure commonly used by consumers is composed of a shell, a printed circuit board assembly and a plurality of character keys, wherein the printed circuit board assembly and the character keys are installed on the shell, and the keyboard structure is single in function and lacks of temperature and humidity detection and display functions. For office places with strict temperature and humidity control requirements, such as laboratories and constant-temperature and constant-humidity warehouses, the work is inconvenient. The space inside the wireless keyboard is compact, the temperature and humidity monitoring function area is designed to be unreasonable, the inner space of the keyboard can be occupied, even the functions of the keyboard are required to be reduced or the size of the keyboard must be increased, and the original convenience of the wireless keyboard is reduced.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome prior art's defect, the utility model provides a temperature and humidity monitoring wireless keyboard through reasonable space layout design, realizes working environment temperature and humidity monitoring and demonstration under the condition that does not crowd and account for other part spaces.

The technical scheme is as follows: the utility model relates to a temperature and humidity monitoring wireless keyboard, which comprises an upper cover, a lower cover, a film switch, a PCBA, a battery component and a plurality of keycaps; the upper cover and the lower cover are connected, an accommodating space for accommodating the membrane switch, the PCBA and the battery component is formed between the upper cover and the lower cover, the keycap is mounted on the upper cover, and the lower end of the keycap is abutted against the membrane switch; the PCBA is positioned at the top of the right side of the accommodating space and comprises a circuit board, a character micro-control unit, a wireless code matching switch and a temperature and humidity monitoring module; the circuit board is electrically connected with the battery assembly and is provided with a first golden finger, the top of the right side of the membrane switch is provided with a second golden finger, and the second golden finger is in compression joint with the first golden finger; the temperature and humidity monitoring module comprises a temperature and humidity sensor, a temperature and humidity micro-control unit for processing the temperature and humidity sensor signal and generating temperature and humidity information, and a display unit for displaying the temperature and humidity information; and the top of the right side of the upper cover is provided with an observation hole matched with the display unit.

The temperature and humidity sensor is mounted on the upper surface of the circuit board, and temperature and humidity detection holes are formed in the upper cover at positions corresponding to the temperature and humidity sensor. Thereby improving the accuracy of environment temperature and humidity detection.

The display unit comprises a liquid crystal display, a signal transmission conductive adhesive and supporting foam, the liquid crystal display is supported on the upper surface of the circuit board through the supporting foam, and the liquid crystal display is connected with the circuit board through the signal transmission conductive adhesive to receive the temperature and humidity information. The circuit board and the upper cover are provided with bolt holes matched with each other, and the circuit board is mounted on the upper cover through bolts.

The circuit board and the upper cover are provided with bolt holes matched with each other, and the circuit board is mounted on the upper cover through bolts.

An iron pressing strip is further arranged in the accommodating space and used for pressing the second golden finger on the first golden finger.

The iron pressing strip is provided with a bolt hole matched with the circuit board, and a bolt penetrates through the iron pressing strip to install the circuit board on the upper cover.

And a silica gel strip is also arranged in the accommodating space and is padded at the joint of the circuit board and the upper cover.

The accommodating space is also internally provided with a supporting plate which is supported on the lower surface of the membrane switch.

The PCBA also comprises an indicator light which is arranged on the upper surface of the circuit board.

The upper cover is arranged at a position corresponding to the indicator lamp and provided with a light-transmitting hole, and a light-transmitting nameplate is attached to the surface of the light-transmitting hole.

Has the advantages that: this wireless keyboard is through setting up the circuit board at the right side top of its inner space to set up humiture monitoring module on the circuit board, regard as humiture micro control unit through independent MCU, and cooperate humiture sensor and display element cooperation, realized the real-time supervision to keyboard operational environment humiture. Simultaneously also rationally utilize the inner space of keyboard, need not to reduce the function of keyboard itself or increase the volume of keyboard, promoted the convenience of keyboard.

Drawings

Fig. 1 is an exploded view of the components of the wireless keyboard for monitoring temperature and humidity of the present invention;

FIG. 2 is an enlarged, fragmentary, schematic view of a right side top region of the temperature and humidity monitoring wireless keyboard of FIG. 1;

fig. 3 is a schematic view of the internal structure of the wireless keyboard for temperature and humidity monitoring of the present invention after the lower cover and the lower accessories are removed;

FIG. 4 is an enlarged, fragmentary, schematic view of the right top region of the temperature and humidity monitoring wireless keyboard of FIG. 3;

fig. 5 is an exploded view of the internal components of the wireless keyboard for temperature and humidity monitoring of the present invention;

FIG. 6 is another perspective view of an exploded view of the interior components of the temperature and humidity monitoring wireless keyboard of FIG. 5;

fig. 7 is the utility model discloses a humiture monitoring wireless keyboard's overall structure schematic diagram.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

It is to be noted that, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only, and is for the purpose of illustration only, such as "inner", "outer", "left", "right", "top", "bottom", and the like, and is not intended to be limiting of the invention.

As shown in figures 1-7, the 2.4G humiture monitoring wireless keyboard is characterized in that an upper cover 1 and a lower cover 2 are connected through bolts, and an accommodating space formed between the upper cover 1 and the lower cover 2 comprises an area which is positioned at the top of the right side and is used for placing a PCBA4, an area which is positioned at the top of the middle and is used for placing a battery component 5, and an area which is positioned at the top of the middle and is used for placing a membrane switch 3 and a supporting plate 15. The key caps 6 are installed in the corresponding notches of the upper cover 1, and the lower ends of the key caps 6 are abutted on the membrane switch 3 to realize the key functions, specifically, each key position on the membrane switch 3 has a convex pressing point, and the key caps 6 are abutted at each pressing point in a one-to-one correspondence to realize the functions of each key.

The PCBA4 includes a circuit board 7, a character micro-control unit (not shown), a wireless code-matching switch 8, a temperature and humidity monitoring module, and an indicator light 16.

Wherein, the circuit board 7 realizes power supply by connecting the battery pack 5. The lower surface of the circuit board 7 has a first gold finger 71 and correspondingly, the upper surface of the right top of the membrane switch 3 has a second gold finger 31. The membrane switch 3 is pressed on the first golden finger 71 through the second golden finger 31 thereof to realize the transmission of signals. The character micro-control unit processes the input information such as letters, numbers, symbols and the like on the keyboard and then transmits the processed information to the computer in a wireless communication mode. The wireless code matching switch 8 is used for matching codes with an external receiver to realize wireless communication. The supporting plate 15 is a metal thin plate and is disposed below the membrane switch 3, so as to support the membrane switch 3.

The temperature and humidity monitoring module comprises a temperature and humidity sensor 9, a temperature and humidity micro-control unit (not shown in the figure) and a display unit 10.

The temperature and humidity sensor 9 can be of a DHT11 type, is mounted on the upper surface of the circuit board 7 and is used for collecting temperature and humidity in a working environment and transmitting temperature and humidity signals. The temperature and humidity sensor 9 has 4 PINs (1PIN: VCC 2PIN: DATA 3PIN: NC PIN 4PIN: GND), adopts simplified single bus communication, namely only one DATA line, and completes DATA exchange and control in the system by the single bus.

The temperature and humidity micro control unit is synchronous with the communication of the 3 rd PIN DATA of the temperature and humidity sensor DHT11, and transmits 40-bit DATA signals at a time, specifically 8-bit humidity integer DATA + 8-bit humidity decimal DATA + 8-bit temperature integer DATA + 8-bit temperature decimal DATA + 8-bit check bits. The humiture microcontrol unit processes signals transmitted by the humiture sensor 9 and generates humiture information, and only when the addition result of 8-bit humidity integer data + 8-bit humidity decimal data + 8-bit temperature integer data + 8-bit temperature decimal data is completely consistent with the 8-bit check digit, the liquid crystal display can display the humiture data, otherwise, the received data is incorrect, and the data is abandoned to be received again.

The display unit 10 is used for displaying temperature and humidity information and includes a liquid crystal display 101, a signal transmission conductive adhesive 102 and a supporting foam 103. The liquid crystal display 101 is supported on the upper surface of the circuit board 7 through the supporting foam 103, and is connected with the circuit board 7 through the signal transmission conductive adhesive 102 to receive the temperature and humidity information.

An indicator lamp 16 is mounted on the upper surface of the circuit board 7 for indicating a battery voltage or for indicating a keyboard function switch. Meanwhile, the top of the right side of the upper cover 1 is correspondingly processed at the corresponding positions of the liquid crystal display 101, the temperature and humidity sensor 9 and the indicator light 16. Specifically, an observation hole 11 adapted to the liquid crystal display 101 is formed, and the liquid crystal display 101 can be directly seen through the observation hole 11; a temperature and humidity detection hole 12 is formed in a position corresponding to the temperature and humidity sensor 9, so that the communication between an external environment and the temperature and humidity sensor 9 is realized; a light hole 17 is opened at the corresponding position of the indicator light 16, and a light-transmitting nameplate 18 is pasted on the surface of the light hole 17.

In order to realize assembly, an iron pressing strip 13 and a silicon strip 14 are further arranged in the accommodating space, the circuit board 7, the upper cover 1 and the iron pressing strip 13 are provided with bolt holes matched with each other, the bolt 20 penetrates through the iron pressing strip 13 to mount the circuit board 7 on the upper cover 1, and the second golden finger 31 is pressed on the first golden finger 71. The silica gel strip 14 is padded at the joint of the circuit board 7 and the upper cover 1 to realize the fastening connection of the circuit board and the upper cover.

Claims

1. A temperature and humidity monitoring wireless keyboard is characterized by comprising an upper cover (1), a lower cover (2), a thin film switch (3), a PCBA (4), a battery component (5) and a plurality of keycaps (6); the upper cover (1) is connected with the lower cover (2) and an accommodating space for accommodating the membrane switch (3), the PCBA (4) and the battery component (5) is formed between the upper cover and the lower cover, the keycap (6) is mounted on the upper cover (1), and the lower end of the keycap (6) is abutted to the membrane switch (3); the PCBA (4) is located at the top of the right side of the accommodating space, and the PCBA (4) comprises a circuit board (7), a character micro-control unit, a wireless code matching switch (8) and a temperature and humidity monitoring module; the circuit board (7) is electrically connected with the battery assembly (5), the circuit board (7) is provided with a first golden finger (71), the top of the right side of the membrane switch (3) is provided with a second golden finger (31), and the second golden finger (31) is pressed on the first golden finger (71); the temperature and humidity monitoring module comprises a temperature and humidity sensor (9), a temperature and humidity micro-control unit for processing signals of the temperature and humidity sensor (9) and generating temperature and humidity information, and a display unit (10) for displaying the temperature and humidity information; the top of the right side of the upper cover (1) is provided with an observation hole (11) matched with the display unit (10).

2. The wireless keyboard for monitoring temperature and humidity according to claim 1, wherein the temperature and humidity sensor (9) is mounted on the upper surface of the circuit board (7), and the upper cover (1) is provided with a temperature and humidity detecting hole (12) at a position corresponding to the temperature and humidity sensor (9).

3. The wireless keyboard for monitoring temperature and humidity according to claim 1, wherein the display unit (10) comprises a liquid crystal display (101), a signal transmission conductive adhesive (102) and a support foam (103), the liquid crystal display (101) is supported on the upper surface of the circuit board (7) through the support foam (103), and is connected with the circuit board (7) through the signal transmission conductive adhesive (102) to receive the temperature and humidity information.

4. The wireless keyboard for monitoring temperature and humidity according to claim 1, wherein the circuit board (7) and the upper cover (1) have bolt holes matched with each other, and the circuit board (7) is mounted on the upper cover (1) through bolts (20).

5. The wireless keyboard for monitoring the temperature and humidity according to claim 4, wherein an iron pressing strip (13) is further arranged in the accommodating space, and the iron pressing strip (13) presses the second golden finger (31) on the first golden finger (71).

6. The wireless keyboard for monitoring the temperature and the humidity according to claim 5, wherein the iron pressing bar (13) is provided with bolt holes matched with the circuit board (7), and bolts (20) penetrate through the iron pressing bar (13) to mount the circuit board (7) on the upper cover (1).

7. The wireless keyboard for monitoring temperature and humidity according to claim 4, wherein a silica gel strip (14) is further arranged in the accommodating space, and the silica gel strip (14) is padded at the joint of the circuit board (7) and the upper cover (1).

8. The wireless keyboard for monitoring temperature and humidity according to claim 1, wherein a support plate (15) is further disposed in the accommodating space, and the support plate (15) is supported on the lower surface of the membrane switch (3).

9. The wireless keyboard for monitoring temperature and humidity according to claim 1, wherein the PCBA further comprises an indicator light (16), and the indicator light (16) is arranged on the upper surface of the circuit board (7).

10. The wireless keyboard for monitoring temperature and humidity according to claim 9, wherein the upper cover (1) is provided with a light hole (17) at a position corresponding to the indicator light (16), and a light-transmitting nameplate (18) is attached to the surface of the light hole (17).