CN208241688U - A kind of embedded home gateway - Google Patents

Abstract

The utility model discloses an embedded home gateway. The key point of the technical scheme is to include a PCB board and a single-chip microcomputer MCU arranged on the PCB board. A protective shell is arranged on the outside of the MCU. On the heat dissipation motor on the protective case, a fan is arranged on the rotating shaft of the heat dissipation motor, and a heat dissipation port is opened on the protective case, and the fan rotates relative to the heat dissipation port; the main clamp foot is provided on the protective case, and the position of the protective case is welded on the PCB board. Fixed limit device, the limit device includes a clamping plate, the upper side of the clamping plate is provided with a card slot, the secondary clamping foot is slidably connected to the clamping plate, the secondary clamping foot is in conflict with the main clamping angle, and the outer side of the secondary clamping foot is sleeved There is a return spring, and the outer side of the auxiliary card foot is provided with a collision plate, and the two ends of the return spring are respectively in conflict with the collision plate and the card board; the heat generated by the MCU is dissipated by the fan, and the protection is improved through the card slot on the card board. The ease of installation of the shell.

Description

An Embedded Home Gateway

technical field

The utility model relates to the field of Internet control, in particular to an embedded home gateway.

Background technique

With the development of Internet of Things technology, smart home systems continue to mature. The use of embedded smart home gateways will simplify the engineering complexity in the integration of smart home systems, speed up the progress of the project, improve the quality and efficiency of the project, and promote the popularization and application of smart home systems and other smart monitoring systems. development prospects of the market space.

At present, the operation status of traditional household appliances is usually controlled by the gateway. The gateway is usually exposed to the outside space when it is running. The heat generated by the gateway is not easy to dissipate, and it is easy to cause a fire situation in the gateway. Therefore, existing developers are devoted to researching a structure that can protect the gateway and facilitate the installation and heat dissipation of the gateway.

Utility model content

The purpose of the utility model: to protect the gateway and ensure the heat dissipation of the gateway.

Technical solution: An embedded home gateway, including a PCB board and a single-chip microcomputer MCU arranged on the PCB board, a protective case is provided on the outside of the MCU, a heat dissipation device is provided on the protection case, and the heat dissipation device includes a The heat dissipation motor on the protective case, the rotating shaft of the heat dissipation motor is provided with a fan, the protective case is provided with a heat dissipation port, and the fan rotates relatively to the heat dissipation port;

The protective case is provided with a main clamp foot, and a limiting device for fixing the position of the protective case is welded on the PCB. There are secondary clips slidingly connected to the clip board, and the secondary clips are in conflict with the main clip angle. The outer side of the secondary clips is provided with a return spring, and the outside of the secondary clips is provided with a conflict plate. The two ends of the return spring are respectively in conflict with the conflict disc and the clamping plate.

Further, the input end of the MCU is provided with a power supply module, a ZigBee module and a sensor module, the power supply module, the ZigBee module and the sensor module are electrically connected to the input end of the MCU, and the output end of the MCU is provided with a Wifi module, so Described Wifi module is electrically connected with the output terminal of MCU, and the inside of described MCU is provided with data register, and described Wifi module is electrically connected with data register, and described Wifi module is electrically connected with panel computer, and described Wifi module is connected with mobile network data terminal.

Further, an RF module is connected to the output end of the MCU, and the RF module is connected to a tablet computer.

Further, an alarm device is electrically connected to the output end of the MCU, and the alarm device includes a buzzer and an LED display light.

Further, the ZigBee module includes 40pin CC2530, radio frequency antenna and connector.

Further, the power module includes a battery and a solar panel, and the solar panel is electrically connected to the battery.

Further, the solar panel is electrically connected to a power regulator, and the power regulator is electrically connected to the solar panel.

Beneficial effect:

1. The output end of the MCU is connected to the Wifi module, the Wifi module is connected to the mobile network data terminal, and the mobile network data terminal is connected to the tablet computer, and the operating status of the household appliances is transmitted remotely through the mobile network data terminal, which is convenient for the user to remotely control the MCU ;

2. The sensor module is connected with an RF module, and the RF module is connected with the MCU. The RF can be transmitted in a short distance, and the user can control the operating status of the household appliances at a short distance.

Description of drawings

Fig. 1 is the overall structural representation of the present embodiment;

Figure 2 is a structural schematic diagram to highlight the positional relationship between the MCU and the PCB board;

Fig. 3 is an enlarged view of A in Fig. 2 .

Reference signs: 1. PCB board; 2. MCU; 3. power module; 31. storage battery; 32. solar panel; 4. power supply regulator; 5. ZigBee module; 51. connector; 6. sensor module; 61 , temperature sensor; 62, humidity sensor; 7, data register; 8, Wifi module; 9, mobile network data terminal; 10, tablet computer; 11, RF module; 12, alarm device; 121, buzzer; 122, LED Display light; 13, protective case; 14, cooling device; 141, cooling port; 142, cooling motor; 143, fan; , Return spring; 20, conflict plate; 21, household appliances.

Detailed ways

Referring to FIG. 1, an embedded home gateway includes a PCB board 1 (see FIG. 2) and a single-chip microcomputer MCU2 arranged on the PCB board 1. The input terminal of the MCU2 is provided with a power module 3, and the power module 3 is electrically connected to the MCU2. The module 3 includes a storage battery 31 and a solar panel 32 , the storage battery 31 is electrically connected to the solar panel 32 , the solar panel 32 converts solar energy into electrical energy and is stored by the storage battery 31 , and the storage battery 31 is used to provide electrical energy for the MCU 2 . When the storage battery 31 provides electric energy for the MCU2, if the voltage of the storage battery 31 fluctuates, the voltage change of the storage battery 31 is likely to cause a voltage impact on the MCU2, so it is easy to cause damage to the MCU2. Therefore, in order to reduce the voltage impact of the storage battery 31 on the MCU2, the battery 31 Electrically connected with a power regulator 4, the power regulator 4 is used to ensure the stability of the output voltage of the battery 31 to the MCU2.

With reference to Fig. 1, the input terminal of MCU2 is electrically connected with ZigBee module 5 and sensor module 6, and sensor module 6 comprises temperature sensor 61 and humidity sensor 62, and temperature sensor 61 is used for detecting the temperature of household appliance 21 when running, and humidity sensor 62 is used for Detect the humidity of the working environment of the household appliance 21, and give an alarm when the household appliance 21 is short-circuited due to excessive humidity. The model of the ZigBee module 5 is 40pin CC2530. In addition, the ZigBee module 5 also includes a radio frequency antenna and a connector 51. If the household appliance 21 is short-circuited or the line is aging and the temperature rises sharply, the temperature sensor 61 transmits the temperature signal through the ZigBee module 5. For MCU2, MCU2 is internally provided with a data register 7, and the data memory converts and stores the signal transmitted by the ZigBee module 5, and the output terminal of the MCU2 module is electrically connected to the Wifi module 8, and the Wifi module 8 transmits the signal from the ZigBee module 5 to the MCU2 converted into a wireless signal, the Wifi module 8 is electrically connected to a mobile network data terminal 9, the mobile network data terminal 9 transmits the wireless signal converted by the Wifi module 8 over a long distance, and the mobile network data terminal 9 is connected to the tablet computer 10, and the user passes The tablet computer 10 is connected to the network to display the operating status of the home appliance 21 . In addition, the user operates on the tablet computer 10, and the tablet computer 10 feeds back the control signal on the tablet computer 10 to the MCU2 through the mobile network data terminal 9, and the MCU2 controls the operation of the household appliances 21 after receiving the control signal from the tablet computer 10.

Referring to FIG. 1 , in the absence of a network, the user can still control the operating status of the home appliance 21 at close range. The reason why the user can realize the short-distance control of the household appliances 21 is that the input terminal of the MCU2 is electrically connected to the RF module 11, and the RF module 11 receives the analog signal generated by the sensor module 6 and transmits it to the MCU2, and the household appliances 21 are controlled by the MCU2. The user controls the MCU2 through the tablet computer 10, that is, the user sends a control signal through the tablet computer 10, and feeds the control signal back to the MCU2 through the RF module 11, so that the MCU2 controls the change of the operation state of the household appliance 21. The output end of MCU2 is electrically connected with alarm device 12, and alarm device 12 comprises buzzer 121 and LED display light 122, after the signal MCU2 that RF module 11 or ZigBee module 5 produces, the output end of MCU2 produces alarm signal, and MCU2 drives buzzer The buzzer 121 and the LED display lamp 122 are turned on, and the buzzer 121 and the LED display lamp 122 intuitively remind the user.

Referring to FIG. 2 , a protective case 13 is provided on the PCB 1 , and the protective case 13 is used to protect the MCU2 so as to prevent the MCU2 from being damaged by external force. When the MCU2 is working, the heat generated by it is easy to stay in the protective case 13, and the heat retention can easily cause the MCU2 to be damaged by high temperature. Therefore, in order to improve the heat dissipation capacity of the MCU2, the protective case 13 is provided with a heat sink 14. The heat sink 14 includes Open the heat dissipation port 141 on the protective shell 13, the heat dissipation port 141 is arranged on the side wall of the protective shell 13, the outer wall of the protective shell 13 is provided with a heat dissipation motor 142, and the rotating shaft of the heat dissipation motor 142 is connected with a fan 143, and the fan 143 It is at the position of the cooling vent 141. Through the rotation of the heat dissipation motor 142, the heat dissipation motor 142 drives the fan 143 to rotate, and the fan 143 extracts the heat in the protective case 13 from the heat dissipation port 141, thereby reducing the temperature of the MCU2.

Referring to Fig. 2 and Fig. 3, in order to improve the convenience of installation or disassembly of the protective case 13, the bottom of the protective case 13 is provided with a main clip 15, the PCB board 1 is welded with a clip 16, and the upper surface of the clip 16 is opened There is a card slot 17, and the card slot 17 is used for the main card pin 15 to extend into. The outer wall of the protective shell 13 is slidably connected with a secondary card pin 18. The cross-sectional shapes of the main card pin 15 and the secondary card pin 18 are hook-shaped and trapezoidal respectively. The secondary clamping foot 18 penetrates the side wall of one side of the chute, and the secondary clamping foot 18 is engaged with the main clamping foot 15 . A return spring 19 is sheathed on the outside of the secondary clip 18 , and a resisting plate 20 is provided outside the secondary clip 18 . When the protective case 13 is extended into the chute, the main clamping foot 15 is in contact with the secondary clamping pin 18, the secondary clamping pin 18 slides and touches the disk 20 to compress the return spring 19, and when the main clamping pin 15 loses the resistance to the secondary clamping pin 18, it resets The shape of the spring 19 recovers, and the return spring 19 drives the position of the secondary clamping foot 18 to recover. The secondary clamping foot 18 limits the position of the main clamping pin 15, so that the main clamping pin 15 cannot slide out from the chute, thereby protecting the position of the shell 13. get fixed.

The preferred embodiment of the utility model has been described in detail above, but the utility model is not limited to the specific details in the above-mentioned embodiment, and within the scope of the technical concept of the utility model, various equivalent transformations can be carried out to the technical solution of the utility model , these equivalent transformations all belong to the protection scope of the present utility model. In addition, it should be noted that the various specific technical features described in the above specific implementation manners may be combined in any suitable manner if there is no contradiction. In order to avoid unnecessary repetition, the utility model will not further describe various possible combinations.

Claims (7)

1. a kind of embedded home gateway, special including pcb board (1) and the single-chip microprocessor MCU (2) being arranged on pcb board (1) Sign is: the outside of the MCU (2) is equipped with protective shell (13), and the protective shell (13) is equipped with radiator (14), described to dissipate Thermal (14) includes the radiating motor (142) being arranged on protective shell (13), is arranged in the shaft of the radiating motor (142) Have fan (143), offered thermovent (141) on the protective shell (13), the fan (143) and thermovent (141) are opposite Rotation；

The protective shell (13) is equipped with main card foot (15), is welded on the pcb board (1) for the fixation of protective shell (13) position Limiting device, the limiting device include snap-gauge (16), and the upside of the snap-gauge (16) is equipped with card slot (17), the snap-gauge (16) In slidably connect vice card foot (18), the vice card foot (18) and main card angle, which contradict, to be cooperated, the outer sheath of the vice card foot (18) Equipped with reset spring (19), the outside of the vice card foot (18), which is equipped with, contradicts disk (20), the both ends point of the reset spring (19) It is not contradicted with conflict disk (20) and snap-gauge (16).

2. a kind of embedded home gateway according to claim 1, it is characterised in that: the input terminal of the MCU (2) is equipped with Power module (3), ZigBee module (5) and sensor module (6), the power module (3), ZigBee module (5) and Sensor module (6) is electrically connected with the input terminal of MCU (2), and the output end of the MCU (2) is equipped with Wifi module (8), described Wifi module (8) is electrically connected with the output end of MCU (2), and the inside of the MCU (2) is equipped with data register (7), the Wifi Module (8) is electrically connected with data register (7), and the Wifi module (8) is electrically connected with tablet computer (10), the Wifi module (8) mobile network data terminal (9) are connected with.

3. a kind of embedded home gateway according to claim 1, it is characterised in that: the output end of the MCU (2) connects Have RF module (11), the RF module (11) connect with tablet computer (10).

4. a kind of embedded home gateway according to claim 1, it is characterised in that: the output end of the MCU (2) is electrically connected It is connected to warning device (12), the warning device (12) includes buzzer (121) and LED display lamp (122).

5. a kind of embedded home gateway according to claim 2, it is characterised in that: the ZigBee module (5) includes 40pin CC2530, radio-frequency antenna and connector (51).

6. a kind of embedded home gateway according to claim 2, it is characterised in that: the power module (3) includes storing Battery (31) and solar panels (32), the solar panels (32) are electrically connected with battery (31).

7. a kind of embedded home gateway according to claim 6, it is characterised in that: solar panels (32) electrical connection Have power regulator (4), the power regulator (4) is electrically connected with solar panels (32).