Light adjusting switch circuit

Abstract

The utility model relates to the technical field of switches, and discloses a light adjusting switch circuit, which comprises an input end, an output end, a switch K1, a switch K2 and a capacitor C1, and the switch K2 is connected in series with the switch K1 after being connected in parallel with the capacitor C1. According to the utility model, the one or more capacitors and the switch K2 are connected in parallel and then are connected in series with the master control switch K1, so that the adjustment of different brightness of the LED illuminating lamp is realized, the dimming switch and the master control switch do not influence each other, the effect of simultaneously controlling the light brightness and the lamp switch can be realized, the operation is simple and convenient, and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of switches, in particular to a lighting adjustment switch circuit. Background Art

[0002] This section is intended to provide a background or context to the embodiments of the utility model recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.

[0003] As people's living standards improve, the comfort and experience of various electrical appliances in life are becoming more and more the focus of people's attention. For various electrical appliances, double-control switches can realize the switching control of electrical appliances at different positions, which provides great convenience for people's life and work, and therefore are more and more widely used. In addition, for lighting fixtures, people need different lighting brightness in different activities or scenes. Therefore, people have studied many circuits and switches for adjusting the brightness of lamps. However, they are not simple and convenient enough, and there are even fewer adjustment switches suitable for LED lighting lamps. Patent 202221288917.2 (patent name: LED lighting dimmer switch) proposes a dimmer switch suitable for LED lighting lamps. However, when K2 of the dimmer switch is turned on (that is, the terminal is connected to contact d), K1 and another double-control switch panel cannot achieve normal double control and control of the LED lighting lamp. Only when K2 is turned off (that is, the terminal is connected to contact c), K1 and another double-control switch can achieve normal double control and control; and, when single-control is used, K1 and K2 of the switch need to be turned off at the same time to turn off the LED lighting lamp, which is cumbersome to operate and not very convenient to use; it can be seen that when K2 is turned on, K1 and another double-control switch will be out of control. Utility Model Content

[0004] The purpose of the utility model is to solve the above technical problems and technical difficulties, and propose a light adjustment switch circuit, which can realize the simultaneous control of light brightness and lamp switch without affecting each other, and also has a dual control function.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows.

[0006] A light adjustment switch circuit comprises an input end, an output end, a switch K1, a switch K2 and a capacitor C1. The switch K2 is connected in parallel with the capacitor C1 and then connected in series with the switch K1.

[0007] Furthermore, the switch K1 is a double-control switch.

[0008] Furthermore, the switch K2 is also connected in parallel with a capacitor C2, and the capacitor C2 is connected in series with a switch K3, one end of the switch K3 is connected to the common end of the switch K1, and the other end is connected to one end of the capacitor C2, and the other end of the capacitor C2 is connected to the output end; one end of the capacitor C1, C2 and switch K2 connected in parallel is connected in series with the switch K1, one contact of the switch K1 is connected to the input end, the input end is connected to one end of the power supply, the other end of the power supply is connected to the LED lamp, and the other end of the LED lamp is connected to the output end; the other contact of the switch K1 is a dual-control standby end.

[0009] Furthermore, the switch K2 can also be a bidirectional conversion contact switch with a middle disconnection, and the switches K2 and K3 are combined into one, designed as a bidirectional conversion contact switch with a middle disconnection; the common end of the switch K2 is connected to the common end of K1, one of the contacts a of the switch K2 is connected to one end of the capacitor C2, the other end of the capacitor C2 is connected to the output end, and the other contact b of the switch K2 is directly connected to the output end.

[0010] Furthermore, the capacitances of the capacitors C1 and C2 are 330nF and 680nF respectively.

[0011] Furthermore, the capacitors C1 and C2 are respectively connected in parallel with discharge resistors R1 and R3 and in series with buffer resistors R2 and R4.

[0012] Furthermore, the discharge resistance value is 1 MΩ, and the buffer resistance value is 100Ω.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model connects the main control switch K1 in series with one or more parallel capacitors and switches to achieve the adjustment of different brightness of LED lighting lamps. The dimming switch and the main control switch of the utility model do not affect each other, and the light brightness and the lamp switch can be controlled simultaneously. The operation is simple and convenient, the user experience is improved, and the dual control function is also provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 This is a schematic diagram of the structure of the light adjustment switch circuit of the utility model embodiment;

[0017] Figure 2 This is another structural schematic diagram of the light adjustment switch circuit of the utility model embodiment;

[0018] Figure 3 This is another structural schematic diagram of the light adjustment switch circuit of the utility model embodiment;

[0019] Figure 4 This is another structural schematic diagram of the light adjustment switch circuit of the utility model embodiment;

[0020] Figure 5 This is a schematic diagram of the connection between the light adjustment switch circuit, the LED lamp and the power supply of the embodiment of the utility model; DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0022] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time. When an element is referred to as being "provided with" another element, it may be provided on the surface or inside of the element.

[0023] Unless explicitly stated otherwise, throughout the specification and claims, the term “comprise” or variations such as “include” or “comprising”, etc., will be understood to include the stated elements or components but not to exclude other elements or components.

[0024] The lighting adjustment switch circuit of the utility model is as follows: Figure 1 As shown, in this embodiment, the main control switch K1 is a double control switch. The light adjustment switch circuit of this embodiment includes a double control switch K1 and a switch K2 connected in series. The switch K2 is connected in parallel with a capacitor C1. One end of the capacitor C1 connected in parallel with the switch K2 is connected to the common end of the double control switch K1, and the other end is connected to the output end; one contact of the double control switch K1 is connected to the input end, the input end is connected to one end of the power supply, the other end of the power supply is connected to one end of the LED lamp, and the other end of the LED lamp is connected to the output end. The power supply in this embodiment is an ordinary household AC 220V power supply. The double control switch K1 is equivalent to the main control switch on the main road, which controls the opening or closing of the LED lighting lamp. The capacitor C1 is connected in parallel with the switch K2. When the switches K1 and K2 are closed, it is equivalent to a short circuit of the capacitor C1. The LED lighting lamp is directly connected in series with the switches K1, K2, and the power supply. The circuit is directly connected, and the brightness of the LED lighting lamp is the brightest at this time. When the switch K2 is disconnected, the capacitor C1 is connected in series with the circuit, and the brightness of the LED lighting lamp is reduced, thereby realizing the adjustment of the two brightness of the LED lighting lamp.

[0025] Optionally, in order to achieve multi-level brightness adjustment of the LED lighting lamp, the switch K2 is further connected in parallel with a capacitor C2, such as Figure 2 As shown, the capacitor C2 is connected in series with a switch K3, one end of the switch K3 is connected to the common end of the switch K1, and the other end is connected to one end of the capacitor C2, and the other end of the capacitor C2 is connected to the output end; one end of the capacitor C1, C2 and switch K2 connected in parallel is connected in series with the switch K1, and the other end is connected to the output end; after the series connection, one contact of K1 is connected to the input end, and the other contact is a dual-control standby end.

[0026] Optionally, the above Figure 2 The solution in the embodiment can also be implemented in another way, that is, the switches K2 and K3 are combined into one, and designed as a bidirectional conversion contact switch with a middle disconnection, such as Figure 3 As shown, the common end of the switch K2 is connected to the common end of the switch K1, one of the contacts a of the switch K2 is connected to one end of the capacitor C2, and the other end of the capacitor C2 is connected to the output end; the other contact b of the switch K2 is directly connected to the output end, so that when K2 is in the middle disconnected position, the current passes through the capacitor C1, and the light brightness is the lowest at this time; when K2 is connected to contact a, the current passes through the capacitors C1 and C2, and the light is of medium brightness at this time; when K2 is connected to contact b, the capacitor C1 is short-circuited, the capacitor C2 is disconnected, the entire circuit is directly connected, and the LED light is the brightest.

[0027] Furthermore, the capacitances of the capacitors C1 and C2 are 330nF and 680nF respectively. Figure 5 shown.

[0028] K1 is the main switch, which controls the on and off of the LED lighting. K2 and K3 are dimming switches, which control the adjustment of the brightness of the LED lighting. When K1 is closed, the brightness of the LED lighting can be adjusted to different levels by opening and closing K2 and K3. The brightness will be different depending on the number of K2 and K3 closures and the number of closed switches.

[0029] Optionally, the capacitors C1 and C2 may have the same capacitance or different capacitances. In this embodiment, the capacitances of C1 and C2 are 330nF and 680nF, respectively. In practical applications, more capacitors may be selected to be connected in parallel or in series to the circuit, or other capacitors with different capacitances may be selected to meet different brightness requirements.

[0030] Optionally, in all the above solutions, each capacitor can be connected in parallel with a discharge resistor and in series with a buffer resistor. The discharge resistor value is 1MΩ and the buffer resistor value is 100Ω. Appropriate resistance values ​​can also be selected according to needs. Take the parallel connection of two capacitors C1 and C2 as an example. Figure 4As shown, capacitors C1 and C2 are connected in parallel with a discharge resistor R1 and R3 respectively, and then connected in series with a buffer resistor R2 and R4 respectively. The discharge resistor is set because the capacitor will store charge in the circuit, and it is set to prevent the user from getting an electric shock when replacing or repairing the switch; the buffer resistor is set because: when switch K1 is closed and K2 is disconnected, the capacitor is energized and the capacitor will store charge. At this time, when K2 is closed, the contact of K2 will produce sparks and a popping discharge sound due to the instantaneous discharge of the capacitor. The series buffer resistor can reduce the spark and extend the life of the contact, and avoid the discharge sound from causing fear to the user, affecting the user experience.

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0032] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit them. Although the utility model is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A light adjustment switch circuit, characterized in that: It includes an input end, an output end, a switch K1, a switch K2 and a capacitor C1; one end of the switch K2 connected in parallel with the capacitor C1 is connected to the output end, and the other end is connected to one end of the switch K1; the other end of the switch K1 is connected to the input end, and the switch K1 is a double-control switch.

2. A light adjustment switch circuit according to claim 1, characterized in that: The switch K2 is also connected in parallel with a capacitor C2, and the capacitor C2 is connected in series with a switch K3, one end of the switch K3 is connected to the switch K1, and the other end is connected to one end of the capacitor C2, and the other end of the capacitor C2 is connected to the output end; the capacitors C1, C2 and the switch K2 are connected in parallel and then connected in series with the switch K1.

3. A light adjustment switch circuit according to claim 2, characterized in that: The switch K2 can also be a bidirectional conversion contact switch with a middle disconnection, the common end of the switch K2 is connected to K1, one of the contacts a is connected to one end of the capacitor C2, and the other end of the capacitor C2 is connected to the output end; the other contact b of the switch K2 is directly connected to the output end.

4. A light adjustment switch circuit according to claim 2, characterized in that: The switch K2 may also be connected in parallel to N capacitors, and each of the N capacitors is connected in series with a switch.

5. A light adjustment switch circuit according to any one of claims 1 to 3, characterized in that: The common end of the double-control switch K1 is connected to K2, one of the contacts of K1 is connected to the input end, and the other contact is a double-control standby end.

6. A light adjustment switch circuit according to claim 2, characterized in that: The capacitances of the capacitors C1 and C2 are 330nF and 680nF respectively.

7. A light adjustment switch circuit according to claim 2, characterized in that: The capacitors C1 and C2 are connected in parallel with discharge resistors R1 and R3 respectively.

8. A light adjustment switch circuit according to claim 2, characterized in that: The capacitors C1 and C2 are respectively connected in series with buffer resistors R2 and R4.

9. A light adjustment switch circuit according to claim 7 or 8, characterized in that: The resistance value of the bleeder resistor is 1MΩ, and the resistance value of the buffer resistor is 100Ω.

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