CN216673341U

CN216673341U - Ceiling type wireless access point module with illumination function

Info

Publication number: CN216673341U
Application number: CN202220159627.1U
Authority: CN
Inventors: 蔡云枝; 刘剑峰; 董庆; 朱明辉; 熊辉; 王维; 赵晓佳; 王慧; 张英
Original assignee: Taicang T&W Electronics Co Ltd
Current assignee: Taicang Haiyun Testing Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-06-03
Anticipated expiration: 2032-01-21

Abstract

The utility model discloses a ceiling type wireless access point module with an illumination function, which comprises an upper shell, a PCB (printed Circuit Board), a lower shell and a fixed support, wherein the PCB is arranged between the upper shell and the lower shell, and the fixed support is arranged on the lower shell. The PCB comprises a power supply module, a power supply conversion module, an LED driving circuit module, a control module, a wireless communication module, a remote control module, a power supply adapter, a data interface, an LED lighting module and a wireless access point module; the utility model can combine the LED semiconductor energy-saving illumination with the wireless access point, and improves the application capability of the LED semiconductor energy-saving illumination.

Description

Ceiling type wireless access point module with illumination function

Technical Field

The utility model relates to the technical field of lighting, in particular to a ceiling type wireless access point with a lighting function.

Background

In the prior art, the hazards of voltage fluctuation and flicker are shown in the following steps: the light of the illuminating lamp flickers, causing visual discomfort and fatigue of people. The voltage fluctuation makes the electric energy user unable to work normally, and what is most affected in people's life is the flickering (flieker) of the incandescent lamp. The voltage fluctuation value with the frequency within the range of 5-12 Hz is enough to cause the flickering of the illumination of the incandescent lamp even if the voltage fluctuation value is only 1 percent of the rated voltage. With the development of wireless ap (access point), i.e. wireless access point technology, a new idea is provided for the problem.

The wireless ap (access point) is a wireless switch for a wireless network, and is also a core of the wireless network. Wireless APs are access points for mobile computer users to access wired networks, and are mainly used in broadband homes, buildings and parks, typically covering distances of tens of meters to hundreds of meters, and currently the main technology is the 802.11 series. Most wireless APs also have an access point client mode (AP client) and can be wirelessly connected to other APs to extend the coverage of the network.

The role of the wireless AP is two:

1. as the central point of the wireless local area network, other computers with wireless network cards can access the wireless local area network through the central point;

2. the purpose of extending the network range is achieved by providing long-distance wireless connection to a wired local area network or long-distance wired connection to a small wireless local area network.

The wireless AP can also be used for connecting a small wireless local area network so as to achieve the purpose of expansion. When the number of wireless network users is large enough, one wireless AP should be accessed in the wired network to connect the wireless network to the wired network backbone.

The AP plays a role of a network bridge between the wireless workstation and the wired backbone, and wireless and wired seamless integration is realized. While APs allow wireless workstations to access network resources while increasing the available resources for wired networks, the prior art illumination using conventional light sources is unlikely to be integrated with APs due to a number of limiting factors, including: the AP equipment formed by high-speed digital and radio frequency circuits has harmonic wave and flicker interference on a 220Vac power supply shared by the AP equipment and the lighting, and the problems of higher power consumption of the traditional lighting, heat dissipation of heat consumption caused by the power consumption and the like are difficult to integrally solve.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the technology, the utility model discloses a ceiling type wireless access point with an illumination function, which can combine LED semiconductor energy-saving illumination with the wireless access point and improve the application capability of the LED semiconductor energy-saving illumination.

The utility model adopts the following technical scheme:

the utility model provides a ceiling type wireless access point module with illumination function, includes casing, PCB board, lower casing and fixed bolster, wherein the PCB board sets up go up between casing and the lower casing, the fixed bolster sets up on the casing down.

As a further technical scheme of the utility model, the PCB comprises a power supply module, a power conversion module, an LED driving circuit module, a control module, a wireless communication module, a remote control module, a power adapter, a data interface, an LED lighting module and a wireless access point module; wherein:

the output of data interface, power adapter is connected with power module's input respectively, power module's output is connected with power conversion module and LED drive circuit module's input respectively, power conversion module's output is connected with wireless access point module's input, LED drive circuit module's output is connected with LED lighting module's input, control module's output is connected with LED drive circuit module's input, remote control module's output is connected with wireless communication module's input, wireless communication module's output and control module's input are connected.

As a further technical solution of the present invention, the data interface is a POE interface or a PD interface. The POE + interface may be a 30W or 60W data interface.

As a further technical scheme of the utility model, the power adapter is a 220Vac to 48Vdc power adapter.

As a further technical scheme of the utility model, the power supply module is a 48Vdc power gating combined module.

As a further technical scheme of the utility model, the power supply conversion module is an isolated 48 Vdc-to-12 Vdc power supply module.

As a further technical scheme of the utility model, the wireless access point module is a wireless access point functional circuit

As a further technical scheme of the utility model, the remote control module is a Bluetooth remote controller or a smart phone.

As a further technical scheme of the utility model, the wireless communication module is a wireless Bluetooth communication module, and the wireless Bluetooth communication module is a 2.4Ghz Bluetooth interface

As a further technical scheme of the utility model, the control module is an MOSFET switch based on a PWM control chip.

As a further technical solution of the present invention, the LED driving circuit module is a constant current driver based on H7310.

Has the positive and beneficial effects that:

the ceiling type wireless access point can be placed above a ceiling of a house and reversely suspended, no extra space is occupied, the ceiling type wireless access point looks attractive and elegant, and the attractiveness of roof installation is greatly improved.

The lighting function is added on the basis of the existing mature ceiling type wireless access point, the mode of a compound semiconductor technology LED is adopted, the LED is powered by 12Vdc, the on-off of the lamp is controlled by a 2.4Ghz Bluetooth channel usually carried by wireless access point equipment, the on-off and brightness control of the LED is realized by a Bluetooth remote controller, and the influence on a wifi antenna of the wireless access point is fully considered and effectively inhibited by the installation position of an LED dot matrix. And the 12V power supply of the lamp adopts a reinforced EMI filtering isolation measure, so that the influence on a WIFI system is reduced.

The LED has all the properties of the LED, such as high efficiency, low consumption, energy conservation, environmental protection, low-voltage driving, high response speed, high safety, solid packaging, vibration resistance, small volume, convenient assembly and combination, full-serialization of colors in a visible region, good color temperature, color purity, color rendering property, light directivity and the like, is convenient for lighting application and combination, direct current driving, has no stroboflash, is used for lighting, is beneficial to protecting the vision of human eyes and has various purposes.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive exercise, wherein:

FIG. 1 is a schematic diagram of a ceiling-mounted wireless access point module with illumination function according to the present invention;

FIG. 2 is an exploded view of a ceiling-mounted wireless access point module with illumination function according to the present invention;

FIG. 3 is a schematic block diagram of a ceiling mounted wireless access point module with illumination function according to the present invention;

FIG. 4 is a schematic diagram illustrating an embodiment of a ceiling-mounted wireless access point module with illumination function according to the present invention;

FIG. 5 is a schematic diagram illustrating another embodiment of a ceiling-mounted wireless access point module with illumination function according to the present invention;

the attached drawings are as follows: the PCB comprises an upper shell 1, a PCB 2, a lower shell 3 and a fixed support 4.

Detailed Description

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, and it should be understood that the embodiments described herein are merely for the purpose of illustrating and explaining the present invention and are not intended to limit the present invention.

As shown in fig. 1-2, a ceiling type wireless access point module with an illumination function comprises an upper casing 1, a PCB 2, a lower casing 3 and a fixing support 4, wherein the PCB 2 is arranged between the upper casing 1 and the lower casing 3, and the fixing support 4 is arranged on the lower casing 3.

When the compound semiconductor LED lighting device works, the whole heat dissipation is fully considered in structural design, the aluminum base large heat radiator with good heat conductivity is adopted, the single plate is reversely buckled on the heat conduction boss inside the aluminum base, the upper shell is made of plastic materials to ensure the wave permeability of the built-in WIFI antenna, the compound semiconductor LED is also subjected to heat dissipation through the aluminum base and is inversely installed in the geometric center of the device, the center of the surface shell of the whole shell is provided with the light transmission hole, and the WIFI antenna is consciously far away from the lighting LED in layout. The surface of the boss of the aluminum base is lapped with a PCB or an IC device by an insulating heat conduction gasket to conduct heat, and the aluminum base is connected to a system digital ground on the PCB by a high-voltage capacitor through a screw so as to avoid the EMI problem caused by floating of a large metal under high frequency.

As shown in fig. 3, in the present invention, the PCB 2 includes a power module, a power conversion module, an LED driving circuit module, a control module, a wireless communication module, a remote control module, a power adapter, a data interface, an LED lighting module, and a wireless access point module; wherein:

When the LED illumination device works, the power supply module provides working voltage and current for the LED illumination module through the power supply adapter, the LED driving power supply provides driving power for the power supply module, the LED illumination module receives data information of the working voltage and the current, the LED driver drives the control module, the LED illumination module is in a normal working state through the control module, and the wireless communication interface is arranged on the LED illumination module, so that the interaction of external data information can be realized.

In the utility model, the data interface is a POE interface or a PD interface.

In a specific embodiment, the POE + interface may be a 30W or 60W data interface.

In a specific embodiment, in consideration of various disadvantages of sharing a 220Vac power source with a wireless access point and lighting, a POE + 30W or POE + + 60W PD power supply or a 220V to 48V power adapter power supply is selected. The control module adopts MP8003 and PWM chips, in a specific embodiment, MP6005 is adopted, MOS tubes adopt SJ4848DY and the like, POE PD input voltage is not more than 57V at most, and the limit of SELV safe extra-low voltage below 60V is met.

In the utility model, the power adapter is a 220Vac to 48Vdc power adapter.

In a specific embodiment, the compound semiconductor LED is used as a low-power-consumption light source, a POE + + PD network port is used for supplying direct current, or a 220Vac to 48Vdc power adapter is used for supplying power, the device is reasonably designed and has multiple functions, a wireless AP with a lighting function is realized, the device is convenient to install and attractive, the area of a ceiling or a suspended ceiling of a user is not additionally occupied, and the device is convenient to control on-off and brightness of an APP special for butting a mobile phone by adopting Bluetooth remote control. The compound semiconductor LED has high efficiency, low consumption, energy conservation and environmental protection; the low-voltage driving is realized, the response speed is high, and the safety is high; the solid packaging is vibration-resistant, the volume is small, and the assembly and the combination are convenient; the color in the visible region is full-serialized, the color temperature, the color purity, the color rendering property and the light directivity are good, and the lighting application and combination are convenient; the direct current is used for driving, the stroboflash is avoided, and the direct current is used for lighting and is beneficial to protecting the eyesight of human eyes; the service life is long.

In the utility model, the power supply module is a 48Vdc power supply gating combined module.

In the utility model, the power supply conversion module is an isolated 48 Vdc-to-12 Vdc power supply module.

In the utility model, the wireless access point module is a wireless access point functional circuit

In the utility model, the remote control module is a Bluetooth remote controller or a smart phone.

In the utility model, the wireless communication module is a wireless Bluetooth communication module, and the wireless Bluetooth communication module is a 2.4Ghz Bluetooth interface

In the utility model, the control module is a MOSFET switch based on a PWM control chip.

In particular embodiments, many LED applications require dimming functionality, such as LED backlighting or architectural lighting dimming. The dimming function can be realized by adjusting the brightness and contrast of the LED. Simply reducing the current of the device may allow the LED to be dimmed, but operating the LED below its rated current can have many undesirable consequences, such as color drift. An alternative to simple current regulation is to integrate a Pulse Width Modulation (PWM) controller in the LED driver. The PWM signal is not used directly to control the LED, but rather to control a switch, such as a MOSFET, to provide the desired current to the LED. PWM controllers typically operate at a fixed frequency and adjust the pulse width to match the desired duty cycle. Most current LED chips use PWM to control LED lighting, and to ensure that people do not feel noticeable flicker, the frequency of the PWM pulses must be greater than 100 Hz. The main advantage of PWM control is that the dimming current through PWM is more accurate, and the color difference when the LED emits light is reduced to the maximum extent. In a particular embodiment, the PWM control chip PWM2 receives control from the MCU. The MCU controls the on-off of 24V voltage for illumination and the adjustable brightness control according to the lamp switching and brightness control instruction received by the Bluetooth channel. And the system side and the original power supply side are electrically isolated by adopting an optical coupler. Because transformer isolation type FLYBACK circuits are respectively adopted, the 12V voltage for AP and the 24V voltage for illumination are well electrically isolated, and the illumination part can be realized by a special integrated circuit.

As shown in fig. 4-5, in the present invention, the LED driving circuit module is a constant current driver based on H7310.

In a specific embodiment, H7310 is a linear buck LED constant current driver with a PWM dimming function, and only one CS resistor needs to be externally connected to form a complete constant current driving circuit. The external resistor is adjusted to adjust the output current, and the output current range is 10-2000 mA. H7310 incorporates a withstand voltage MOS of 100V. The built-in overheat protection function can effectively protect the chip and avoid damage caused by overheat. H7310 has a very low quiescent current, typically 10 uA. H7310 with PWM dimming function, the LED current can be adjusted by adding PWM signal to DIM pin. H7310 is packaged by ESOP8, and the exposed heat sink is connected with LED pins, so that heat can be fully dissipated.

In particular embodiments, many LED applications require dimming functionality, such as LED backlighting or architectural lighting dimming. The dimming function can be realized by adjusting the brightness and contrast of the LED. Simply reducing the current of the device may allow the LED to be dimmed, but operating the LED below its rated current can have many undesirable consequences, such as color drift. An alternative to simple current regulation is to integrate a Pulse Width Modulation (PWM) controller in the LED driver. The PWM signal is not used directly to control the LED, but rather to control a switch, such as a MOSFET, to provide the desired current to the LED. PWM controllers typically operate at a fixed frequency and adjust the pulse width to match the desired duty cycle. Most current LED chips use PWM to control LED lighting, and to ensure that people do not feel noticeable flicker, the frequency of the PWM pulses must be greater than 100 Hz. The main advantage of PWM control is that the dimming current through PWM is more accurate, and the color difference when the LED emits light is reduced to the maximum extent.

The LED driving power supply is a power converter which converts a power supply into a specific voltage and current to drive an LED to emit light, and a low-voltage direct-current input mode is selected. The output of the LED driving power supply is mostly a constant current source that can change voltage with the change of the LED forward voltage drop value. The PWM control mode switching power supply, namely the pulse driving mode, is selected. The basic working principle of the PWM switching regulator is that under the condition of the input voltage, internal parameters and external load variation, the control circuit performs closed-loop feedback by the difference between the control signal and the reference signal, and adjusts the pulse width of the main circuit switching device to stabilize the output voltage or current of the switching power supply (i.e. the corresponding regulated power supply or constant current power supply). The power supply has extremely high efficiency, generally 80-90%, and stable output voltage and current. Perfect protection measures such as over-temperature protection and the like can be added according to requirements.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that these specific embodiments are merely illustrative and that various omissions, substitutions and changes in the form of the detail of the methods and systems described above may be made by those skilled in the art without departing from the spirit and scope of the utility model. For example, it is within the scope of the present invention to combine the steps of the methods described above to perform substantially the same function in substantially the same way to achieve substantially the same result. Accordingly, the scope of the utility model is to be limited only by the following claims.

Claims

1. A ceiling type wireless access point module with an illumination function comprises an upper shell (1), a PCB (2), a lower shell (3) and a fixing support (4), wherein the PCB (2) is arranged between the upper shell (1) and the lower shell (3), and the fixing support (4) is arranged on the lower shell (3); the PCB (2) comprises a power supply module, a power supply conversion module, an LED driving circuit module, a control module, a wireless communication module, a remote control module, a power adapter, a data interface, an LED lighting module and a wireless access point module; wherein data interface, power adapter's output is connected with power module's input respectively, power module's output is connected with power conversion module and LED drive circuit module's input respectively, power conversion module's output is connected with wireless access point module's input, LED drive circuit module's output is connected with LED lighting module's input, control module's output is connected with LED drive circuit module's input, remote control module's output is connected with wireless communication module's input, wireless communication module's output and control module's input are connected.

2. The ceiling type wireless access point module with the lighting function according to claim 1, wherein: the data interface is a POE interface or a PD interface, wherein the POE interface is a 30W or 60W data interface.

3. The ceiling type wireless access point module with the lighting function according to claim 1, wherein: the power adapter is a 220Vac to 48Vdc power adapter.

4. The ceiling type wireless access point module with the lighting function according to claim 1, wherein: the power supply module is a 48Vdc power supply gating combined module.

5. The ceiling type wireless access point module with the lighting function according to claim 1, wherein: the power supply conversion module is an isolated 48 Vdc-to-12 Vdc power supply module.

6. The ceiling type wireless access point module with the lighting function according to claim 1, wherein: the wireless access point module is a wireless access point functional circuit.

7. The ceiling type wireless access point module with the lighting function according to claim 1, wherein: the remote control module is a Bluetooth remote controller or a smart phone.

8. The ceiling type wireless access point module with the lighting function according to claim 1, wherein: the wireless communication module is a wireless Bluetooth communication module, and the wireless Bluetooth communication module is a 2.4Ghz Bluetooth interface.

9. The ceiling type wireless access point module with the lighting function according to claim 1, wherein: the control module is a MOSFET switch based on a PWM control chip.

10. The ceiling type wireless access point module with the lighting function according to claim 1, wherein: the LED driving circuit module is a constant current driver based on H7310.