Wall type light modulator and light modulation structure

Abstract

The utility model discloses a wall type light modulator and a light modulation structure, the light modulator comprises a light modulation housing and a circuit structure, and the circuit structure is arranged in the light modulation housing; a first circuit board, a second circuit board and a cooling fin of the circuit structure are sequentially and vertically arranged up and down, and the first circuit board is vertically connected to the front portion of the second circuit board. The radiating fin is parallel to the second circuit board; the horizontal side edges of the radiating fins are provided with mounting parts extending upwards; the heating elements are transversely arranged on the horizontal left side or right side of the second circuit board side by side, the back surfaces of the heating elements are attached to the mounting part, and pins of the heating elements are welded and fixed on the first circuit board; according to the light modulator, the existing vertically arranged heating element is changed into the transversely arranged heating element, so that the height occupied by the heating element in the space of the shell is effectively reduced, and a cooling fin can be additionally arranged to ensure that the light modulator can be completely arranged in the bottom box with the fixed height; the heat dissipation efficiency of the heating element can be effectively improved, and the power of the dimmer can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dimmers, in particular to a wall-mounted dimmer and a dimming structure. Background Art

[0002] A dimmer is an electrical device used to change the brightness and / or color temperature of a lighting device. A common wall-mounted dimmer is generally installed inside an 86-type bottom box embedded in a wall. Due to the limited space inside the bottom box, the heat dissipation effect is poor. And there is a dimming circuit board inside the dimmer, and generally large-current and high-power heating elements, such as MOS transistors, are vertically welded on the dimming circuit board. Therefore, a large space needs to be occupied and heat sinks cannot be installed, so that the heating elements can only dissipate heat directly through the air, and the heat dissipation effect is poor. Therefore, in order to avoid overheating and affecting the normal operation of the dimmer, only the power of the dimmer can be designed to be small; and the small power is difficult to meet the actual scenario requirements and applications.

[0003] In view of this, in order to overcome the defect that the dimmer cannot be made with high power due to the heat dissipation limitation inside the existing bottom box, this case is thus produced. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a wall-mounted dimmer and a dimming structure, which have the advantages of enhancing the heat dissipation efficiency and increasing the power of the dimmer.

[0005] In order to achieve the above purpose, the solution of the utility model is:

[0006] A wall-mounted dimmer includes a dimming housing and a circuit structure, and the circuit structure is arranged in the housing space inside the dimming housing.

[0007] The circuit structure includes a first circuit board, a second circuit board, a heating element and a heat sink.

[0008] The first circuit board, the second circuit board and the heat sink are sequentially arranged vertically up and down, and the first circuit board is vertically connected to the front of the second circuit board.

[0009] The heat sink is parallel to the second circuit board.

[0010] The horizontal side of the heat sink has an upward-extending mounting portion, and the mounting portion is located on the left or right side of the second circuit board horizontally.

[0011] The heating elements are placed horizontally side by side on the left or right side of the second circuit board horizontally, and the back of the heating element is attached to the mounting portion, and at the same time, the pins of the heating element are welded and fixed to the first circuit board.

[0012] Further, there are two heating elements, and the heat sink has two mounting parts respectively located on the left and right sides of the second circuit board; the backs of the two heating elements are respectively attached and locked to the two mounting parts.

[0013] Further, the heat sink is made of a metal material; an insulating and heat-conducting structure is provided between the heating element and the mounting part of the heat sink; there is also a heat dissipation part extending upward at the rear of the heat sink; the height of the heat dissipation part is not greater than the height of the first circuit board.

[0014] Further, the width of the first circuit board is greater than the width of the second circuit board; there are several insertion pieces extending downward in the middle of the first circuit board, and connection parts for connecting the heating elements are provided at the left and right ends; several slots are provided on the second circuit board for the insertion pieces to be inserted in alignment, and the two connection parts are respectively located on the left and right sides of the second circuit board.

[0015] Further, the bottom surface of the heat sink abuts against the bottom surface of the housing space; the heat sink and the second circuit board are vertically spaced from each other.

[0016] Further, several electronic components are installed on both the first circuit board and the second circuit board. The part with a larger current among the electronic components is installed on the first circuit board, and the part with a smaller current among the electronic components is installed on the second circuit board; when the input is AC 220V - 240V, the larger current refers to more than 1A, and the smaller current refers to less than 100mA.

[0017] The present utility model further provides a wall - type dimming structure, including a panel and the dimming device; the panel has a control structure, and the control structure is electrically connected to the circuit structure.

[0018] Further, the panel and the dimming device are vertically spaced; the panel has the control structure, a panel housing, and a panel assembly provided in the panel housing; the panel assembly is electrically connected to the control structure and has a first terminal exposed on the surface of the panel housing; the dimming device is provided with a second terminal, and the first terminal is electrically connected to the second terminal.

[0019] Further, the second terminal is arranged side - by - side with the first circuit board at the front of the second circuit board, and the second terminal is located on the front side of the first circuit board; a wiring notch for exposing the second terminal is provided on the dimming housing.

[0020] Further, the control structure adopts knob control, touch control or button control.

[0021] After adopting the above technical solution, by changing the existing vertically arranged heating element to a horizontally arranged one, the height occupied by the heating element in the housing space is effectively reduced. At the same time, the saved space can be used to additionally add a heat sink to ensure that the dimmer after adding the heat sink can be completely installed in the bottom box with a fixed height. Moreover, the heat sink is closely attached to the heating element, which can effectively improve the heat dissipation efficiency of the heating element and increase the power of the dimmer. In addition, setting the heating element on the side of the second circuit board and soldering it to the first circuit board, instead of directly stacking the heating element on the second circuit board, can further reduce the product thickness.

[0022] Furthermore, the heat sink is in contact with the dimmer housing, which can transfer heat from the dimmer housing in time and improve the heat dissipation efficiency. Description of the Drawings

[0023] Figure 1 Is a three-dimensional exploded view of the dimming structure of the embodiment of the present invention;

[0024] Figure 2 Is a cross-sectional view of the dimming structure of the embodiment of the present invention;

[0025] Figure 3 Is an exploded view of the dimmer of the embodiment of the present invention;

[0026] Figure 4 Is an exploded view of the circuit structure of the embodiment of the present invention.

[0027] Reference numerals: Dimming structure 100, Bottom box 200, Panel A, Dimmer B, Control structure 1, Dimmer housing 2, Housing space 21, Wiring notch 22, Upper cover 2a, Bottom plate 2b, Circuit structure 3, First circuit board 31, Insertion piece 311, Connection part 312, Second circuit board 32, Slot 321, Heating element 33, Back surface 331, Heat sink 34, Mounting part 341, Heat dissipation part 342, Panel housing 4, Panel assembly 5, First wiring terminal 6, Second wiring terminal 7. Detailed Embodiments

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated herein can be arranged and designed in various different configurations.

[0029] Such as Figures 1 to 4As shown, a wall-mounted dimmer B of the present utility model is mainly installed in an 86-type bottom box 200 embedded in a wall, and can cooperate with a panel A to form a dimming structure 100 for adjusting and controlling a lighting device (not shown).

[0030] In this embodiment, the dimming structure 100 includes a panel A and a dimmer B.

[0031] The panel A has a control structure 1. The control structure 1 can adopt knob control, such as the potentiometer structure shown in this embodiment. Of course, the control structure 1 can also adopt touch control or button control, etc., to conveniently adjust the color temperature, brightness, etc. of the lighting device. The panel A can adopt the structure of the prior art.

[0032] The dimmer B includes a dimming housing 2 and a circuit structure 3. The circuit structure 3 is arranged in a housing space 21 inside the dimming housing 2 and is electrically connected to the control structure 1.

[0033] Refer to Figure 4 , the circuit structure 3 includes a first circuit board 31, a second circuit board 32, a heating element 33 and a heat sink 34.

[0034] As Figure 2 and Figure 3 , the first circuit board 31, the second circuit board 32 and the heat sink 34 are arranged vertically one above the other. The first circuit board 31 is vertically connected to the front of the second circuit board 32. The heat sink 34 is parallel to the second circuit board 32 and abuts against the bottom surface of the housing space 21. The dimming housing 2 of this embodiment includes an upper cover 2a and a bottom plate 2b, which are buckled up and down to form the housing space 21.

[0035] The horizontal side of the heat sink 34 has an upwardly extending mounting portion 341, and the mounting portion 341 is located on the left or right side of the second circuit board 32 horizontally. The heating elements 33 are placed side by side horizontally on the left or right side of the second circuit board 32 horizontally, and the back surface 331 of the heating element 33 is adhesively connected to the mounting portion 341. At the same time, the pins of the heating element 33 are welded and fixed to the first circuit board 31.

[0036] Accordingly, in the present utility model, by changing the existing vertically arranged heating element 33 to a horizontally arranged one, the height occupied by the heating element 33 in the housing space 21 is effectively reduced. At the same time, the saved space can be used to additionally add a heat sink 34 to ensure that the dimmer B after adding the heat sink 34 can be completely installed in the bottom box 200 with a fixed height. And by making the heat sink 34 closely fit with the heating element 33, the heat dissipation efficiency of the heating element 33 can be effectively improved, and the power of the dimmer B can be increased. The heat sink 34 abuts against the dimmer housing 2, and the heat can be timely transferred from the dimmer housing 2, further improving the heat dissipation efficiency. Moreover, by arranging the heating element 33 side by side on the side of the second circuit board 32 and soldering it to the first circuit board 31, rather than directly stacking the heating element 33 on the second circuit board 32, the product thickness can be further reduced.

[0037] In this embodiment, the heating element 33 is taken as an MOS transistor. When arranged vertically, the height of the MOS transistor is 16 mm, while when arranged horizontally, the maximum height of the MOS transistor is 10 mm, saving 6 mm of height space. At the same time, by making the back surface 331 of the heating element 33 fit against the mounting portion 341, the contact area can be increased and the heat dissipation efficiency can be improved.

[0038] In this embodiment, there are two heating elements 33, and the heat sink 34 has two mounting portions 341 respectively located on the left and right sides of the second circuit board 32. The back surfaces 331 of the two heating elements 33 are respectively fitted and locked to the two mounting portions 341. By setting the back surface 331 of the heating element 33 to face the left and right sides, it is convenient to fit with the mounting portion 341. Moreover, compared with the scheme where the back surface 331 of the heating element 33 faces downward (not shown in the figure), when the back surface 331 of the heating element 33 faces the left and right sides in this scheme, although the height of the top surface of the heating element 33 is relatively high, the horizontal width occupied by the heating element 33 can be reduced, which is convenient for the design and layout of the second circuit board 32, and can ensure that the two side-by-side heating elements 33 and the second circuit board 32 can be completely installed in the bottom box 200 with a fixed width.

[0039] In this embodiment, the heat sink 34 can be made of a metal material with good heat dissipation effect, and an insulating and heat-conducting structure (not shown in the figure) is provided between the heating element 33 and the mounting portion 341 of the heat sink 34 to improve the heat conduction efficiency and provide insulation protection.

[0040] The width of the first circuit board 31 is greater than the width of the second circuit board 32. The middle of the first circuit board 31 has several downward-extending insertion pieces 311, and the left and right ends have connection portions 312 for connecting the heating element 33. The second circuit board 32 is provided with several slots 321 for the insertion pieces 311 to be inserted in alignment, and the two connection portions 312 are respectively located on the left and right sides of the second circuit board 32. After the insertion pieces 311 are inserted into the slots 321, the first circuit board 31 and the second circuit board 32 can be electrically connected.

[0041] Further, the heat sink 34 and the second circuit board 32 can be vertically spaced apart from each other; the bottom surface of the first circuit board 31 is flush with the bottom surface of the heat sink 34.

[0042] Also referring to Figure 2 , the panel A and the dimmer B are vertically spaced apart; the panel A has the control structure 1, a panel housing 4, and a panel assembly 5 disposed within the panel housing 4. The panel assembly 5 is electrically connected to the control structure 1 and has a first terminal 6 exposed on the surface of the panel housing 4; the dimmer B is provided with a second terminal 7, and the first terminal 6 is electrically connected to the second terminal 7. The panel A can be replaced in terms of structure, shape, etc. as needed.

[0043] In this embodiment, the second terminal 7 and the first circuit board 31 are arranged side by side at the front of the second circuit board 32, and the second terminal 7 is located on the front side of the first circuit board 31; the first circuit board 31 can be electrically connected to the second circuit board 32, and the second circuit board 32 is electrically connected to the first terminal 6 through the second terminal 7, realizing the electrical connection between the control structure 1 and the circuit structure 3.

[0044] The dimmer housing 2 is provided with a wiring notch 22 exposing the second terminal 7. During installation, the first terminal 6 of the panel A and the second terminal 7 of the dimmer B can be located on the same side, and then electrical connection is achieved through the connection of connecting wires.

[0045] To further improve the heat dissipation effect, the heat sink 34 can have a heat dissipation portion 342 extending upward at the rear side relative to the second terminal 7; the height of the heat dissipation portion 342 is not greater than the height of the first circuit board 31.

[0046] In this embodiment, a number of electronic components are installed on both the first circuit board 31 and the second circuit board 32. The first circuit board 31 is used to install the parts with relatively large current among the various electronic components, including the heating element 33; the second circuit board 32 is used to install the parts with relatively small current among the various electronic components; when the input is AC 220V - 240V, the relatively large current refers to more than 1A, and the relatively small current refers to less than 100mA. Thus, the large-current circuit and the small-current circuit can be separated, avoiding mutual interference during their operation, improving the working stability of the product, realizing stable adjustment of the lighting device, and all currents above 100mA can be installed on the first circuit board 31.

[0047] The above are only the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that for those of ordinary skill in the art, any equivalent changes and modifications made without departing from the principle of the present utility model should still fall within the protection scope of the present utility model.

[0048] In the description of the embodiments of the present application, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0049] In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, the meanings of "a plurality" and "several" are two or more, unless otherwise specifically and clearly defined.

Claims

1. A wall dimmer, characterized in that: It includes a dimming housing and a circuit structure, and the circuit structure is arranged in the housing space inside the dimming housing; The circuit structure includes a first circuit board, a second circuit board, a heating element and a heat sink; The first circuit board, the second circuit board and the heat sink are arranged vertically one above the other in sequence, and the first circuit board is vertically connected to the front of the second circuit board; The heat sink is parallel to the second circuit board; The horizontal side of the heat sink has an upward-extending mounting portion, and the mounting portion is located on the left or right side of the second circuit board horizontally; The heating elements are placed side by side horizontally on the left or right side of the second circuit board horizontally, and the back surface of the heating element is attached and connected to the mounting portion, and at the same time, the pins of the heating element are welded and fixed to the first circuit board.

2. The wall dimmer according to claim 1, wherein: There are two heating elements, and the heat sink has two mounting portions located on the left and right sides of the second circuit board respectively; the back surfaces of the two heating elements are respectively attached and locked to the two mounting portions.

3. The wall dimmer according to claim 1, wherein: The heat sink is made of a metal material; an insulating and heat-conducting structure is arranged between the heating element and the mounting portion of the heat sink; there is also an upward-extending heat dissipation portion at the rear of the heat sink; the height of the heat dissipation portion is not greater than the height of the first circuit board.

4. The wall dimmer according to claim 2, wherein: The width of the first circuit board is greater than the width of the second circuit board; there are several downward-extending inserts in the middle of the first circuit board, and connection portions for connecting the heating elements are provided at the left and right ends; several slots are provided on the second circuit board for the inserts to be inserted in alignment, and the two connection portions are respectively located on the left and right sides of the second circuit board.

5. The wall dimmer according to claim 1, characterized in that: The bottom surface of the heat sink abuts against the bottom surface of the housing space; the heat sink and the second circuit board are vertically spaced from each other.

6. A wall dimmer according to claim 1, wherein: Several electronic components are installed on both the first circuit board and the second circuit board. The first circuit board is used to install the part with a larger current among the electronic components, and the second circuit board is used to install the part with a smaller current among the electronic components; when the input is AC 220V - 240V, the larger current means more than 1A, and the smaller current means less than 100mA.

7. A wall-mounted dimming structure, characterized in that: It includes a panel and a dimmer as described in any one of claims 1 - 6; the panel has a control structure, and the control structure is electrically connected to the circuit structure.

8. A wall type dimming structure according to claim 7, characterized in that: The panel and the dimmer are distributed at intervals vertically; the panel has the control structure, a panel housing, and a panel assembly arranged in the panel housing; the panel assembly is electrically connected to the control structure and has a first terminal exposed on the surface of the panel housing; the dimmer is provided with a second terminal, and the first terminal is electrically connected to the second terminal.

9. The wall-mounted dimming structure according to claim 8, wherein: The second terminal is arranged side by side with the first circuit board at the front of the second circuit board, and the second terminal is located at the front side of the first circuit board; a wiring notch for exposing the second terminal is provided on the dimming housing.

10. A wall-mounted dimming structure according to claim 7, characterized in that: The control structure adopts knob control, touch control or button control.

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