Simplified circuit structure for indicating multiple colors through lamps with two colors
Through the design of two colors of LED indicator lights and parallel series circuits, the light color is controlled by using two interfaces on the motherboard, which solves the problem of high cost of indicator lights in the existing technology, realizes the display of multiple colors and reduces the number of PINs and the number of cables to achieve cost saving effect.
Patent Information
- Application Number
- CN202420610342.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-03-27
AI Technical Summary
In the existing indicator light design, multiple PIN interfaces and cables are required to display multiple colors by controlling the two LED lights to turn on and off, resulting in higher costs.
Two different colors of LED indicator lights are used to control the light color through the indicator circuit set in parallel and series, and the two interfaces on the motherboard are used to control the light color, realizing the display of multiple colors, reducing the number of PINs and cables.
The display of multiple colors is realized in the same way as the existing design, which reduces the cost. Specifically, the display of ≥3 colors can be displayed through two cables and two PIN interfaces, effectively reducing manufacturing costs.
Smart Images
Figure CN222210241U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of indicator light design, and in particular relates to a simplified circuit structure for indicating multiple colors by means of two-color lights. Background Art
[0002] Most electronic products now require indicator lights of various colors to indicate their working status.
[0003] With the continuous advancement of technology and consumers' pursuit of cost-effectiveness, electronic consumer product manufacturers are facing increasing cost pressure and increasingly fierce market competition. Electronic consumer product manufacturers are seeking ways to reduce costs, including using cheaper raw materials and improving production efficiency.
[0004] The existing indicator light board is connected to the main board through a socket and a cable. Both the main board and the indicator light board require two sockets, which are connected by a cable in the middle. By controlling the on and off of two LED lights, three or more colors can be displayed. Figure 1 As shown, in the existing design, both the indicator light board and the main board require 3 PIN corresponding connector socket interfaces, and the middle connecting line also requires 3 flat cables, which makes the cost high.
[0005] Therefore, how to achieve color control while reducing manufacturing costs is a problem that needs to be solved. Utility Model Content
[0006] The purpose of the present application is to provide a simplified circuit structure for indicating multiple colors by means of two-color lights, so as to solve the problem of high design cost of indicator lights in the prior art.
[0007] The technical solution of the present application is: a simplified circuit structure for indicating multiple colors by two-color lights, comprising a main board and a light board; a first connector is provided on the main board, and a second connector is provided on the light board, and two interfaces of the first connector and the second connector are respectively interface No. 1 and interface No. 2, and interface No. 1 of the first connector corresponds to interface No. 1 of the second connector, and interface No. 2 of the first connector corresponds to interface No. 2 of the second connector; the first connector and the second connector are connected by two flat cables; an indicator light driving circuit is provided in the light board, and the indicator light driving circuit includes a first indicating circuit and a second indicating circuit arranged in parallel, and a complete loop is formed between the first indicating circuit and the main board, and a complete loop is formed between the second indicating circuit and the main board, and the loop formed by the first indicating circuit and the second indicating circuit and the main board is not grounded; the first indicating circuit includes a first indicating circuit and a first resistor arranged in series, and the second indicating circuit includes a second indicating circuit and a second resistor arranged in series; the positive pole of the first indicating circuit is connected to interface No. 1 of the main board, and the negative pole is connected to interface No. 2 of the main board; the positive pole of the second indicating circuit is connected to interface No. 2 of the main board, and the negative pole is connected to interface No. 1 of the main board; the positive pole of the second indicating circuit is connected to interface No. 2 of the main board, and the negative pole is connected to interface No. 1 of the main board; the first indicating circuit and the second indicating circuit are LED indicating circuits of different colors.
[0008] Preferably, the colors of the first indicator light and the second indicator light are red-green, red-blue or blue-green.
[0009] Preferably, the first indicator light and the second indicator light adopt an integrated packaging structure.
[0010] The simplified circuit structure of the present application indicates multiple colors through two-color lights, including a main board and a light board. Two interfaces are set on the sockets of the main board and the light board, corresponding to two PIN numbers; the first indication circuit includes a first indicator light and a first resistor arranged in series, and the second indication circuit includes a second indicator light and a second resistor arranged in series. The positive pole of the first indicator light is connected to the No. 1 interface of the main board, and the negative pole is connected to the No. 2 interface of the main board; the positive pole of the second indicator light is connected to the No. 2 interface of the main board, and the negative pole is connected to the No. 1 interface of the main board. The first indicator light and the second indicator light are LED indicators of different colors. Through this design, it can be achieved that the light boards of the existing design can display ≥3 colors, and the number of PINs and the number of wiring roots required are reduced by half, so the cost can be effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the technical solution provided by the present application, the following is a brief introduction to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present application.
[0012] Figure 1 It is a schematic diagram of the circuit structure of a lamp panel in the prior art in the background technology;
[0013] Figure 2 This is a schematic diagram of the mainboard structure of this application;
[0014] Figure 3 This is a schematic diagram of the connection structure between the first connector and the second connector of the present application;
[0015] Figure 4 This is a schematic diagram of the circuit structure inside the lamp board of this application.
[0016] 1. Main board; 2. Light board; 3. First connector; 4. Second connector; 5. First indicator light; 6. First resistor; 7. Second indicator light; 8. Second resistor. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] A simplified circuit structure for indicating multiple colors through two-color lights, such as Figure 2-4 As shown, it includes a main board 1 and a light board 2. The main board 1 is provided with a first connector 3, the light board 2 is provided with a second connector 4, the first connector 3 and the second connector 4 are both provided with two interfaces, the two interfaces of the first connector 3 and the second connector 4 are interface No. 1 and interface No. 2 respectively, the interface No. 1 of the first connector 3 corresponds to the interface No. 1 of the second connector 4, and the interface No. 2 of the first connector 3 corresponds to the interface No. 2 of the second connector 4.
[0019] The first connector 3 and the second connector 4 are connected by two flat cables. An indicator light driving circuit is provided in the light board 2, and the indicator light driving circuit includes a first indicating circuit and a second indicating circuit arranged in parallel, and a complete loop is formed between the first indicating circuit and the main board 1, and a complete loop is formed between the second indicating circuit and the main board 1, and the loop formed by the first indicating circuit, the second indicating circuit and the main board 1 is not grounded.
[0020] The first indicating circuit includes a first indicating light 5 and a first resistor 6 arranged in series, and the second indicating circuit includes a second indicating light 7 and a second resistor 8 arranged in series. The positive electrode of the first indicating light 5 is connected to the interface No. 1 of the mainboard 1, and the negative electrode is connected to the interface No. 2 of the mainboard 1; the positive electrode of the second indicating light 7 is connected to the interface No. 2 of the mainboard 1, and the negative electrode is connected to the interface No. 1 of the mainboard 1. The first indicating light 5 and the second indicating light 7 are LED indicating lights of different colors.
[0021] Interface No. 1 of the mainboard 1 is GPIOA, and interface No. 2 is GPIOB. The mainboard 1 MCU realizes the color conversion by controlling interface No. 1 and interface No. 2 respectively. Preferably, the color composition of the first indicator light 5 and the second indicator light 7 can be red-green, red-blue, blue-green, etc. Specifically:
[0022] 1. When the mainboard 1 controls GPIOA to output 3.3V and GPIOB to output 3.3V, the first indicator light 5 is off and the second indicator light 7 is off.
[0023] 2. When the mainboard 1 controls GPIOA to output 3.3V and GPIOB to output 0V, the first indicator light 5 lights up in red and the second indicator light 7 does not light up.
[0024] 3. When the mainboard 1 controls GPIOA to output 0V and GPIOB to output 3.3V, the first indicator light 5 is off and the second indicator light 7 is green.
[0025] 4. When the motherboard 1 controls GPIOA and GPIOB to output 1KHZ 50% duty cycle PWM pulses with opposite phases, the first indicator light 5 and the second indicator light 7 are placed close together, and the two lights are mixed, and the whole is bright yellow. (According to the afterglow effect, the picture will stay in the human eye for 0.1 to 0.4 seconds. The eye loses sensitivity to flickering light with a frequency between 50Hz and 90Hz, so continuous light is seen at higher frequencies).
[0026] 5. When the mainboard 1 controls and adjusts the different frequencies and duty cycles of GPIOA and GPIOB outputs, more colors can be mixed to display ≥3 colors. For example, purple can be obtained by 90% red + 10% blue.
[0027] Through this design, it can be achieved that the lamp board 2 of the existing design can display ≥3 colors, the number of PINs of the main board 1 socket is reduced to 2, the number of cables is reduced to 2, and the number of PINs of the lamp board 2 socket is reduced to 2. The required number of PINs and the number of cables are both reduced by half, so the cost can be effectively reduced.
[0028] The patch positions of the first indicator light 5 and the second indicator light 7 need to be as close as possible. Preferably, the first indicator light 5 and the second indicator light 7 adopt a two-color integrated packaging structure to ensure that a high-quality combination color can be formed.
[0029] Finally, it should be noted that: the drawings of the embodiments disclosed in the present utility model only involve structures related to the embodiments disclosed in the present utility model, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;
[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.
Claims
1. A simplified circuit structure that indicates multiple colors through two-color lights, Features: The invention comprises a main board (1) and a light board (2); the main board (1) is provided with a first connector (3), the light board (2) is provided with a second connector (4), the two interfaces of the first connector (3) and the second connector (4) are respectively interface No. 1 and interface No. 2, the interface No. 1 of the first connector (3) corresponds to interface No. 1 of the second connector (4), and the interface No. 2 of the first connector (3) corresponds to interface No. 2 of the second connector (4); the first connector (3) and the second connector (4) are connected via two flat cables; the light board (2) is provided with an indicator light driving circuit, the indicator light driving circuit comprises a first indicating circuit and a second indicating circuit arranged in parallel, the first indicating circuit and the main board (1) are connected to each other via a plurality of flat cables. The first indicating circuit and the second indicating circuit form a complete loop, the second indicating circuit and the main board (1) form a complete loop, and the loop formed by the first indicating circuit, the second indicating circuit and the main board (1) is not grounded; the first indicating circuit comprises a first indicating light (5) and a first resistor (6) arranged in series, and the second indicating circuit comprises a second indicating light (7) and a second resistor (8) arranged in series; the positive electrode of the first indicating light (5) is connected to the No. 1 interface of the main board (1), and the negative electrode is connected to the No. 2 interface of the main board (1); the positive electrode of the second indicating light (7) is connected to the No. 2 interface of the main board (1), and the negative electrode is connected to the No. 1 interface of the main board (1); the first indicating light (5) and the second indicating light (7) are LED indicating lights of different colors.
2. The simplified circuit structure for indicating multiple colors by two-color lamps as claimed in claim 1, Features: The colors of the first indicator light (5) and the second indicator light (7) are red-green, red-blue or blue-green.
3. The simplified circuit structure for indicating multiple colors by two-color lamps as claimed in claim 1, Features: The first indicator light (5) and the second indicator light (7) adopt an integrated packaging structure.