CN214676293U

CN214676293U - Light modulation module

Info

Publication number: CN214676293U
Application number: CN202120700302.5U
Authority: CN
Inventors: 龙志强; 冯显荣; 林晋平
Original assignee: Guangzhou Haiying Electrical Technology Co ltd
Current assignee: Guangzhou Haiying Electrical Technology Co ltd
Priority date: 2021-04-06
Filing date: 2021-04-06
Publication date: 2021-11-09
Anticipated expiration: 2031-04-06

Abstract

The embodiment of the utility model discloses module of adjusting luminance, including casing, first circuit board and radiating piece. The shell is provided with an accommodating cavity and a heat dissipation hole communicated with the accommodating cavity. The first circuit board is arranged in the accommodating cavity and used for adjusting the output voltage of the dimming module. The heat dissipation part is located in the containing cavity and comprises a heat dissipation substrate and a plurality of heat dissipation fins, one side of the heat dissipation substrate is abutted to the first circuit board, the heat dissipation fins are arranged on the other side of the heat dissipation substrate at intervals, a heat dissipation channel is formed between every two adjacent heat dissipation fins, and the heat dissipation channel is communicated with the heat dissipation holes, and the extending direction of the heat dissipation channel is the same as the penetrating direction of the heat dissipation holes. Because the radiating channel is communicated with the radiating holes and the extending direction of the radiating channel is the same as the penetrating direction of the radiating holes, the heat emitted from the radiating base plate and the radiating fins to the radiating channel can be emitted out of the shell through the radiating holes in a shorter path, and therefore the radiating efficiency of the dimming module is improved.

Description

Light modulation module

Technical Field

The utility model relates to a controlgear technical field especially relates to a module of adjusting luminance.

Background

The dimming module can control the illumination brightness of the illuminating lamp so as to meet different requirements of customers. For example, the dimming module may be installed in an illumination system in a place such as an office building, a residential building, a hotel, an airport, a train station, a theater, etc., and a plurality of indoor or outdoor lighting luminance requirements in these places are different.

The dimming module has high power and generates more heat, however, in the related art, the dimming module has low heat dissipation efficiency, high working temperature and short service life.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model discloses module and house control system adjust luminance, this execution module of adjusting luminance can promote the radiating efficiency, reduces the operating temperature of the module of adjusting luminance, is favorable to prolonging the life of the module of adjusting luminance.

In order to achieve the above object, an embodiment of the utility model discloses a module of adjusting luminance, include:

the shell is provided with an accommodating cavity and a heat dissipation hole communicated with the accommodating cavity;

the first circuit board is arranged in the accommodating cavity and is used for controlling the output voltage of the dimming module; and

the heat dissipation device comprises a heat dissipation part, wherein the heat dissipation part is positioned in the containing cavity and comprises a heat dissipation substrate and a plurality of heat dissipation fins, one side of the heat dissipation substrate is abutted against the first circuit board, the heat dissipation fins are arranged on the other side of the heat dissipation substrate at intervals, a heat dissipation channel is formed between every two adjacent heat dissipation fins, and the heat dissipation channel is communicated with the heat dissipation holes and has the same extending direction as the heat dissipation holes.

As an optional implementation manner, in an embodiment of the present invention, the housing includes a first side wall and a second side wall opposite to each other, and the first side wall and the second side wall are both provided with the heat dissipation holes.

As an optional implementation manner, in an embodiment of the present invention, the first sidewall is provided with a plurality of heat dissipation holes at intervals, the second sidewall is provided with a plurality of heat dissipation holes at intervals, and the heat dissipation holes provided in the first sidewall respectively correspond to the heat dissipation holes provided in the second sidewall.

As an optional implementation manner, in the embodiment of the present invention, the housing is provided with a plurality of heat dissipation holes at intervals, and the interval setting direction of the heat dissipation holes is the same as the interval setting direction of the heat dissipation fins.

As an optional implementation manner, in an embodiment of the present invention, the first circuit board is provided with a voltage adjusting component towards one side of the heat dissipation substrate, the surface of the voltage adjusting component departing from the first circuit board abuts against the heat dissipation substrate, and the voltage adjusting component is used for controlling the output voltage of the dimming module.

As an optional implementation manner, in an embodiment of the present invention, the first circuit board is provided with one or more sets of voltage adjustment components, each set of voltage adjustment components includes a plurality of voltage adjustment components, and one voltage adjustment component is used to control the dimming module to output an output voltage;

the dimming module further comprises a second circuit board electrically connected with the first circuit board, the second circuit board is arranged on one side, away from the heat dissipation substrate, of the first circuit board, the number of the second circuit boards is the same as the number of the groups of the voltage adjusting components, and one second circuit board is used for controlling one group of the voltage adjusting components.

As an optional implementation manner, in an embodiment of the present invention, the first circuit board is detachably and electrically connected to the second circuit board.

As an optional implementation manner, in an embodiment of the present invention, the housing is provided with a plurality of keys, and the keys are used for controlling the first circuit board to control the output voltage of the dimming module when being pressed.

As an optional implementation manner, in an embodiment of the present invention, at least a portion of a surface of the housing away from the accommodating cavity is flush with or protrudes from a surface of the key.

As an alternative embodiment, in an embodiment of the invention, the part of the housing is formed as the key.

Compared with the prior art, the embodiment of the utility model has the advantages that:

the dimming module provided by the embodiment is provided with the heat radiating piece, the heat radiating piece comprises a heat radiating substrate and a plurality of heat radiating fins arranged on the heat radiating substrate, the first circuit board is abutted to one side of the heat radiating substrate, and the plurality of heat radiating fins are arranged on the other side of the heat radiating substrate. Meanwhile, as the heat dissipation channel is formed between the two adjacent heat dissipation fins, the heat dissipation channel is communicated with the heat dissipation holes, and the extending direction of the heat dissipation channel is the same as the penetrating direction of the heat dissipation holes, so that the heat dissipated to the heat dissipation channel by the heat dissipation substrate and the heat dissipation fins can be dissipated out of the shell through the heat dissipation holes in a shorter path, the heat dissipation efficiency of the dimming module is improved, the working temperature of the dimming module is further reduced, and the service life of the dimming module is prolonged.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a dimming module provided in this embodiment;

fig. 2 is a schematic partial structure diagram of the dimming module provided in this embodiment;

fig. 3 is a schematic structural diagram of a heat dissipation element of the dimming module provided in the present embodiment;

fig. 4 is an exploded schematic view of the dimming module according to the present embodiment.

Icon: 1. a housing; 11. a first housing; 111. a first side wall; 112. a second side wall; 113. a first positioning portion; 12. a second housing; 121. pressing a key; 122. a hollow-out section; 123. a flange; 1a, an accommodating cavity; 1b, heat dissipation holes; 2. a first circuit board; 21. a second positioning portion; 22. a voltage regulating component; 3. a heat sink; 31. a heat-dissipating substrate; 32. a heat dissipating fin; 33. a heat dissipation channel; 4. a second circuit board; 5. a connector; 6. and a third circuit board.

Detailed Description

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

The embodiment of the utility model discloses module of adjusting luminance, this module of adjusting luminance can be applied to between the two parties of intelligence for control lighting device's luminance. Specifically, the dimming module is electrically connected to the lighting device, and the dimming module can control the brightness of the lighting device by controlling the output voltage or the output current. Illustratively, the dimming module adjusts the brightness of the lighting device by controlling the output voltage.

It can be understood that the dimming module can control the output voltage of the dimming module according to the control signal input to the dimming module, so that the brightness of the lighting device is controlled, the brightness of the lighting device is automatically adjusted, and the use experience of a user is improved.

In an alternative embodiment, the means for inputting the control signal to the dimming module may be a sensor. Illustratively, when the sensor senses that the user is located in the sensing area, the sensor inputs a control signal to the dimming module to cause the dimming module to control the lighting device to be turned on.

In another optional embodiment, the device for inputting the control signal to the dimming module may be an intelligent electronic product such as a mobile phone, for example, the mobile phone may be provided with a dimming application, and the dimming application may set different scenes (e.g., a leaving scene, a returning scene, a dining scene, etc.) to correspondingly control the dimming module to output different voltages, so as to adjust the brightness of the lighting device, and facilitate the use of the lighting device by a user.

The technical solution of the present invention will be further described with reference to the following embodiments and the accompanying drawings.

Please refer to fig. 1 and fig. 3 together, an embodiment of the present invention discloses a dimming module, including a housing 1, a first circuit board 2 and a heat dissipation member 3, the housing 1 has a receiving cavity 1a and a heat dissipation hole 1b communicated with the receiving cavity 1a, the first circuit board 2 is disposed in the receiving cavity 1a, the first circuit board 2 is used for adjusting an output voltage of the dimming module, the heat dissipation member 3 is disposed in the receiving cavity 1a, the heat dissipation member 3 includes a heat dissipation substrate 31 and a plurality of heat dissipation fins 32, one side of the heat dissipation substrate 31 abuts against the first circuit board 2, the other side of the heat dissipation substrate 31 is disposed at intervals of the plurality of heat dissipation fins 32, a heat dissipation channel 33 is formed between two adjacent heat dissipation fins 32, the heat dissipation channel 33 is communicated with the heat dissipation hole 1b, and an extending direction of the heat dissipation channel 33 is the same as a penetrating direction of the heat dissipation hole 1 b.

The utility model discloses module of adjusting luminance, first circuit board 2 support in one side of radiating basal plate 31, and radiating basal plate 31's opposite side is located to a plurality of radiating fin 32, and like this, the heat that first circuit board 2 produced can be conducted to radiating fin 32 through radiating basal plate 31 to outside 1b radiation hole through casing 1 dispels the casing. In addition, as shown in fig. 3, a heat dissipation channel 33 is formed between two adjacent heat dissipation fins 32, and the heat of two adjacent heat dissipation fins 32 is mostly radiated outward along the heat dissipation channel 33, and the heat is mostly radiated outward from the surfaces of the two outermost heat dissipation fins 32. The heat dissipation direction of the heat dissipation fins 32 is substantially indicated by the dotted line with arrows in fig. 3. It can be understood that, since the heat dissipation channel 33 is communicated with the heat dissipation holes 1b and the extending direction of the heat dissipation channel 33 is the same as the length direction of the heat dissipation fins 32, that is, the heat dissipation holes 1b are located at two ends of the heat dissipation channel 33, then, the distance from the heat dissipation channel 33 to the heat dissipation holes 1b is relatively short, so that the heat in the heat dissipation channel 33 can be dissipated to the outside of the housing 1 through the heat dissipation holes 1b in a relatively short path. Therefore, the heat dissipation efficiency of the dimming module can be improved, the working temperature of the dimming module is reduced, and the service life of the dimming module is prolonged.

In some embodiments, the housing 1 includes a first housing 11 and a second housing 12, the first housing 11 and the second housing 12 are connected in a folded manner, and the first housing 11 and the second housing 12 enclose a receiving cavity 1 a. In this way, the assembly of the first circuit board 2 and the heat sink 3 is facilitated.

Alternatively, the connection manner of the first housing 11 and the second housing 12 may include a welded connection, a snap connection, and the like, and when the first housing 1 is connected to the second housing 1 by welding, the connection of the first housing 1 and the second housing 1 is more stable. When adopting the buckle to connect first casing 1 and second casing 1, the connected mode is more simple and convenient, the equipment of being convenient for more.

In some embodiments, the first housing 11 may include a first sidewall 111 and a second sidewall 112 opposite to each other, and the first sidewall 111 and the second sidewall 112 are provided with heat dissipation holes 1 b. The heat dissipation holes 1b are formed in the first side wall 111 and the second side wall 112, which are opposite to each other, so that heat of the heat dissipation member 3 can be dissipated in two directions through the first side wall 111 and the second side wall 112, thereby further improving the heat dissipation efficiency of the dimming module.

Optionally, the first sidewall 111 is provided with a plurality of heat dissipation holes 1b at intervals, the second sidewall 112 is provided with a plurality of heat dissipation holes 1b at intervals, and the plurality of heat dissipation holes 1b disposed on the first sidewall 111 are respectively disposed corresponding to the heat dissipation holes 1b disposed on the second sidewall 112. Because the heat dissipation holes 1b of the first sidewall 111 and the heat dissipation holes 1b of the second sidewall 112 are correspondingly arranged, the convection heat dissipation between the air outside the housing 1 and the air inside the housing 1 is more convenient, thereby improving the heat dissipation efficiency of the dimming module.

Further, the direction of the interval of the plurality of heat radiation holes 1b is the same as the direction of the interval of the plurality of heat radiation fins 32. By adopting the mode, the interval setting direction of the plurality of heat dissipation holes 1b is the same as the interval setting direction of the plurality of heat dissipation fins 32, namely, the interval setting of the plurality of heat dissipation holes 1b along the arrangement direction of the plurality of heat dissipation channels 33 is favorable for shortening the total heat dissipation path of the heat dissipation channels 33, so that the heat dissipation efficiency of the light dimming module is improved.

Optionally, the heat dissipation holes 1b may be circular holes, square holes, strip-shaped holes, etc., and this embodiment is not particularly limited thereto. Illustratively, the heat dissipation holes 1b are bar-shaped holes.

Referring to fig. 2 and fig. 3, in some embodiments, the first circuit board 2 is disposed in the first housing 11, the first housing 11 is provided with a first positioning portion 113, the first circuit board 2 is provided with a second positioning portion 21, and the second positioning portion 21 is connected to the first positioning portion 113 in a matching manner so as to fix the first circuit board 2 in the first housing 11, thereby preventing the first circuit board 2 from being displaced in the first housing 11 to disconnect the circuit connected to the first circuit board 2.

Optionally, the first positioning portion 113 is a hook, the second positioning portion 21 is a bayonet, and the hook is connected with the bayonet in a matching manner, so as to fix the first circuit board 2 in the first housing 11. By adopting the mode, the structure is simple, the connection is stable and the assembly is easy.

In some embodiments, a side of the first circuit board 2 facing the heat dissipation substrate 31 is provided with a voltage adjustment component 22, a surface of the voltage adjustment component 22 facing away from the first circuit board 2 abuts against the heat dissipation substrate 31, and the voltage adjustment component 22 is used for controlling the output voltage. In this way, the output voltage of the dimming module is adjusted by the voltage adjusting part 22. Because the surface that voltage adjustment part 22 deviates from first circuit board 2 is supported in radiating basal plate 31, like this, the heat that voltage adjustment part 22 produced at the during operation can transmit to radiating basal plate 31 to dispel the heat through radiating basal plate 31 and connect in radiating fin 32 of radiating basal plate 31, thereby improve this module's of adjusting luminance radiating efficiency, reduce the operating temperature of voltage adjustment part 22, be favorable to improving the life of module of adjusting luminance. Illustratively, the voltage regulating component 22 may be a thyristor.

In some embodiments, the first circuit board 2 is provided with one or more sets of voltage adjustment components 22, each set of voltage adjustment components 22 includes a plurality of voltage adjustment components 22, and one voltage adjustment component 22 is used for controlling the dimming module to output one output voltage. The dimming module further comprises a second circuit board 4 electrically connected to the first circuit board 2, the second circuit board 4 is disposed on a side of the first circuit board 2 away from the heat dissipation substrate 31, the number of the second circuit boards 4 is the same as the number of the groups of the voltage adjustment components 22, and one second circuit board 4 is used for controlling one group of the voltage adjustment components 22. In this way, since the first circuit board 2 is provided with one or more sets of voltage adjustment components 22, each set of voltage adjustment components 22 includes a plurality of voltage adjustment components 22, so that the dimming module can output multiple output voltages to implement brightness control on a plurality of lighting devices. In addition, since one second circuit board 4 can control one set of voltage adjustment parts 22, the one set of voltage adjustment parts 22 can control a plurality of voltage adjustment parts 22 to output a multiplexed output voltage. Then, the dimming module can be made to output more multi-output voltages by changing the number of sets of the voltage adjustment parts 22 and the number of the second circuit boards 4. Moreover, when the output voltage of the dimming module is increased, the number of the groups of the voltage adjusting components 22 and the number of the second circuit boards 4 can be increased, the design of the second circuit boards 4 does not need to be modified, and the difficulty in expanding the number of the output voltages of the dimming module is low.

Alternatively, a group of voltage adjustment components 22 may include 4 voltage adjustment components 22 (fig. 3, only 1 voltage adjustment component 22 is shown), so that the dimming module can form 4 output voltages to meet the use of most users. Of course, in other embodiments, the group of voltage adjustment components 22 may include 2

voltage adjustment components

22, 3

voltage adjustment components

22, or 5 voltage adjustment components 22, and the like, which is not specifically limited in this embodiment.

In an alternative embodiment, the first circuit board 2 is provided with a set of voltage adjusting components 22, and the second circuit board 4 can be provided as one, in which case, the dimming module can output 4 output voltages, so that 4 lighting devices can be controlled. In this way, the first circuit board 2 is provided with fewer voltage adjustment components 22, and therefore, the size of the first circuit board 2 can be designed to be smaller, which is beneficial to reducing the size of the dimming module.

In another alternative embodiment, the first circuit board 2 is provided with a plurality of sets of voltage adjustment components 22, for example, the first circuit board 2 is provided with two sets of voltage adjustment components 22, and correspondingly, the dimming module may be provided with two second circuit boards 4, and at this time, the dimming module may output 8 output voltages, so that 8 lighting devices may be controlled. In this way, the dimming module has more output voltages, thereby being capable of controlling a greater number of lighting devices. It is understood that the first circuit board 2 may be provided with 3 sets, 4 sets, 5 sets of voltage adjustment components 22, etc., and this embodiment is not particularly limited thereto.

In some embodiments, the first circuit board 2 is electrically connected to the second circuit board 4 in a detachable manner, so that when the first circuit board 2 or the second circuit board 4 fails, the first circuit board 2 and the second circuit board 4 can be replaced individually, which is beneficial to reducing the maintenance cost of the dimming module. In addition, since the number of the second circuit boards 4 can be increased or decreased according to the number of the sets of the voltage adjustment parts 22 provided to the first circuit board 2, it is more convenient to electrically connect the second circuit board 4 to the first circuit board 2 when the second circuit board 4 needs to be increased, and to separate the second circuit board 4 from the first circuit board 2 when the second circuit board 4 needs to be decreased.

Alternatively, the detachable electrical connection of the second circuit board 4 and the first circuit board 2 may be a plug-in electrical connection, and illustratively, the first circuit board 2 and the second circuit board 4 are connected by a connector 5, that is, one end of the connector 5 is connected to the first circuit board 2, and the other end of the connector 5 is connected to the second circuit board 4. For example, one of the first circuit board 2 and the second circuit board 4 may be a male connector, and the other of the first circuit board 2 and the second circuit board 4 may be a female connector. By adopting the mode, when the male connector is plugged in the female connector, the first circuit board 2 and the second circuit board 4 can realize electric connection and mechanical structure connection, the connection mode is simple and reliable, and the electric connection performance is better. In other embodiments, the second circuit board 4 and the first circuit board 2 may be electrically connected by wires.

It will be appreciated that the second circuit board 4 may receive a control signal input to the dimming module and process the control signal to control the voltage adjustment component 22 of the first circuit board 2, such that the dimming module may control the adjustment of the output voltage according to the input control signal. However, processing the input control signal by using only the second circuit board 4 will result in a large signal processing amount of the second circuit board 4 and a heavy signal processing load. Based on this, in some embodiments, the dimming module is further provided with a third circuit board 6, the third circuit board 6 is disposed on a side of the second circuit board 4 away from the first circuit board 2, the third circuit board 6 is electrically connected to the second circuit board 4, and the third circuit board 6 is configured to process the control signal input to the dimming module and transmit the processed control signal to the second circuit board 4, so that the second circuit board 4 controls the voltage adjusting component 22 disposed on the first circuit board 2 according to the control signal transmitted by the third circuit board 6. In this way, the third circuit board 6 can reduce the signal processing burden of the second circuit board 4, so that both the second circuit board 4 and the third circuit board 6 can operate more stably.

In other embodiments, the third circuit board 6 transmits the control signal to the first circuit board 2, and the first circuit board 2 processes the control signal output by the third circuit board 6 and transmits the processed control signal to the second circuit board 4, so that the second circuit board 4 controls the voltage adjusting component 22 disposed on the first circuit board 2. By adopting the mode, the first circuit board 2 can also process the control signals, so that the burden of processing the control signals of the first circuit board 2, the second circuit board 4 and the third circuit board 6 is small, and the running stability of the first circuit board 2, the second circuit board 4 and the third circuit board 6 can be improved. In addition, in this way, when assembling the dimming module, the second circuit board 4 only needs to be electrically connected to the first circuit board 2, and does not need to be electrically connected to the third circuit board 6, thereby facilitating assembly.

Optionally, the third circuit board 6 is electrically connected to the first circuit board 2 in a detachable manner, so that when the third circuit board 6 or the first circuit board 2 fails, the third circuit board 6 and the first circuit board 2 can be replaced separately, which is beneficial to reducing the maintenance cost of the dimming module.

Alternatively, the third circuit board 6 and the first circuit board 2 may be electrically connected in a detachable manner, for example, the third circuit board 6 and the first circuit board 2 are connected by a connector 5, that is, one end of the connector 5 is connected to the third circuit board 6, and the other end of the connector 5 is connected to the first circuit board 2. For example, one of the third circuit board 6 and the first circuit board 2 may be a male connector, and the other of the third circuit board 6 and the first circuit board 2 may be a female connector. By adopting the mode, when the male connector is plugged in the female connector, the third circuit board 6 and the first circuit board 2 can be electrically connected and mechanically connected, the connection mode is simple and reliable, and the electrical connection performance is better. In other embodiments, the third circuit board 6 and the first circuit board 2 may be electrically connected by wires.

In some embodiments, the second housing 12 is provided with a plurality of keys 121, the keys 121 being used to cause the first circuit board 2 to regulate the output voltage when pressed. In this way, the dimming module can not only automatically adjust the output voltage according to the control signal input to the dimming module, but also adjust the output voltage of the dimming module by manually pressing the button 121 by the user to control the brightness of the lighting device. For example, when the connection between the sensor and the dimming module fails and the control signal cannot be sent to the dimming module, the output voltage can be adjusted by manually pressing the key 121 of the dimming module, so that the user can use the device conveniently. For another example, when the dimming module is overhauled, whether the dimming module can output a preset voltage value can be detected by pressing the key 121, so that the overhauling is facilitated. In addition, since the keys 121 and the heat dissipation holes 1b are respectively disposed in the second housing 12 and the first housing 11, the arrangement space of the first housing 11 and the second housing 12 is reasonably utilized, so that more keys 121 and heat dissipation holes 1b are disposed, thereby facilitating the control and heat dissipation of the dimming module.

In some embodiments, at least a portion of the surface of the second housing 12 facing away from the accommodating cavity 1a is flush with the surface of the key 121 or protrudes from the surface of the key 121. By adopting the mode, compared with the situation that the key 121 protrudes out of the surface of the second shell 12 deviating from the accommodating cavity 1a, the key 121 can be prevented from being touched by a user by mistake, and in addition, the situation that the side part of the key 121 is damaged due to collision can be avoided.

In an alternative embodiment, the key 121 is connected to the third circuit board 6, and the housing 1 is provided with a space corresponding to the key 121, so that the key 121 can be exposed from the space and the surface of the key 121 is flush with the surface of the housing 1, so that the user can press the key 121 to control the output voltage of the dimming module.

In another alternative embodiment, portions of the second housing 12 are formed as keys 121. Alternatively, the second shell 12 may be formed by providing the hollow-out portion 122 to make the portion of the housing 1 form the key 121, for example, the housing 1 may be milled or otherwise removed to make the portion of the housing 1 form the key 121. By adopting the mode, the forming and manufacturing mode of the key 121 is simple, and the key 121 does not need to be additionally assembled, so that the assembly of the dimming module is facilitated.

Further, the surface of the second housing 12 facing away from the accommodating cavity 1a is provided with a flange 123, and the flange 123 protrudes more than the key 121 in a direction facing away from the accommodating cavity 1 a. By adopting the mode, the key 121 can be further prevented from being touched by mistake.

According to the utility model discloses module of adjusting luminance, first circuit board 2 supports and ends in one side of radiating basal plate 31, and the direction of running through of louvre 1b is the same with the extending direction who connects in radiating fin 32 of radiating basal plate 31 to can improve radiating fin 32 and radiating basal plate 31's radiating efficiency, reduce the operating temperature of module of adjusting luminance, be favorable to improving the life of this module of adjusting luminance. In addition, the dimming module is provided with the first circuit board 2, the second circuit board 4 and the third circuit board 6 which can process control signals, so that the burden of control signal processing of each circuit board is less, the operation stability of the first circuit board 2, the second circuit board 4 and the third circuit board 6 is improved, and the fault condition of the dimming module is reduced.

The light-adjusting module disclosed by the embodiment of the present invention is described in detail above, and the principle and the implementation of the present invention are explained herein by applying a specific example, and the description of the above embodiment is only used to help understanding the light-adjusting module and the core idea thereof; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, and in summary, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. A dimming module, comprising:

2. A dimming module as claimed in claim 1, wherein the housing comprises first and second opposing side walls, each of the first and second side walls being provided with the heat dissipation aperture.

3. A dimming module as claimed in claim 2, wherein the first side wall is provided with a plurality of the heat dissipation holes at intervals, the second side wall is provided with a plurality of the heat dissipation holes at intervals, and the heat dissipation holes provided in the first side wall are respectively arranged corresponding to the heat dissipation holes provided in the second side wall.

4. A dimming module as claimed in claim 1, wherein the housing is provided with a plurality of the heat dissipating holes arranged at intervals, and the direction of the arrangement of the plurality of the heat dissipating holes is the same as the direction of the arrangement of the plurality of the heat dissipating fins.

5. A dimming module according to any one of claims 1 to 4, wherein a side of the first circuit board facing the heat sink is provided with a voltage adjustment component, a surface of the voltage adjustment component facing away from the first circuit board abuts against the heat sink, and the voltage adjustment component is configured to control an output voltage of the dimming module.

6. A dimming module according to any one of claims 1 to 4, wherein the first circuit board is provided with one or more sets of voltage regulating components, each set of voltage regulating components comprising a plurality of voltage regulating components, one voltage regulating component for controlling the dimming module to output an output voltage;

7. The dimming module of claim 6, wherein the first circuit board is removably electrically connected to the second circuit board.

8. A dimming module as claimed in any one of claims 1 to 4, wherein the housing is provided with a plurality of keys for controlling the first circuit board to control the output voltage of the dimming module when pressed.

9. The dimming module of claim 8, wherein at least a portion of a surface of the housing facing away from the receiving cavity is flush with or protrudes from a surface of the key.

10. The dimming module of claim 9, wherein a portion of the housing is formed as the key.