Manual double-color-temperature constant-power switch switching device for lamp strip
By using a dual-color temperature constant power switch to switch the LED strip manually, and utilizing a two-pole three-position toggle switch and a balancing resistor, the problem of power surge when LED loads are connected in parallel is solved, achieving constant power switching, avoiding overheating and overload, extending product life and expanding the application range.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-22
- Publication Date
- 2026-04-10
AI Technical Summary
In LED lighting, when two LED loads with different color temperatures are connected in parallel, the input power surges, which can easily lead to overheating of the LED load, premature aging and damage, or power supply overload failure. Existing technologies usually solve this problem by reducing the load power or increasing the power supply power, but this limits the application range of the product.
A hand-operated dual-color temperature constant power switch for LED strips is adopted. Through the control circuit, a two-pole three-position toggle switch, a balancing diode, and a balancing resistor, the output power of the LED group is kept constant when lit individually or together, thus avoiding power surges.
It achieves constant input power during the switching of three color temperatures, avoiding LED overheating and power supply overload, extending product life and expanding the application range.
Smart Images
Figure CN224111339U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to LED lighting technical field, concretely relates to a lamp area is with hand dial two color temperature constant power switch switching device BACKGROUND
[0002] In LED lighting application, the ordinary single -way output constant voltage power supply is usually adopted hand dial switch to realize three different color temperature switching when collocating two different color temperature LED. However, due to the characteristics of constant voltage load, when two LED are lit simultaneously to realize double color temperature effect, two loads are directly connected in parallel and will cause input power close to twice power of original single -way LED. This power surge is easy to cause LED load overtemperature, premature aging damage, or power supply failure due to overload. In order to solve this problem, the prior art usually takes the measures of reducing load power or increasing power supply power, but this undoubtedly limits the application range of product. SUMMARY
[0003] In order to overcome the insufficient of prior art, the utility model provides a lamp area is with hand dial two color temperature constant power switch switching device.
[0004] The utility model discloses the technical scheme that solves its technical problem is:
[0005] A lamp area is with hand dial two color temperature constant power switch switching device, including power supply, control circuit and LED load, control circuit is connected between power supply and LED load, control circuit includes two knife three formula's dial switch, a plurality of balance diode and a plurality of balance resistance, LED load includes two groups of LED lamp group one and LED lamp group two parallelly connected with each other, dial switch controls LED lamp group one and LED lamp group two and inserts different switch contact point, to configure different balance diode and balance resistance respectively, so that the output power of LED lamp group one and LED lamp group two is constant when lighting separately or together.
[0006] Further, the dial switch includes A, B, C three gears, when dial switch is in A gear, LED lamp group one works and the output power is constant, when dial switch is in B gear, LED lamp group one and LED lamp group two work simultaneously and the output power is constant, when dial switch is in C gear, LED lamp group two works and the output power is constant.
[0007] In the utility model, the balance diode is equipped with two groups and is diode Dw and diode Dc respectively, the balance resistance is equipped with two groups and is resistance Rw and Rc respectively, one end of LED lamp group one and LED lamp group two is connected in power supply's V+ pole through LED+ node;
[0008] The other end of the LED lamp set one is directly connected to the switch first contact through the W-node, and is connected to the switch second contact through the W-node, the diode Dw and the resistor Rw in sequence, and the switch second contact is also connected to the switch seventh contact;
[0009] The other end of the LED lamp set two is directly connected to the switch fifth contact through the C-node, and is connected to the switch third contact through the C-node, the diode Dc and the resistor Rc in sequence, and the switch fifth contact is also connected to the switch fourth contact;
[0010] The V-pole of the power supply is connected to the switch sixth contact and the switch eighth contact respectively.
[0011] Further, when the toggle switch is toggled to the A position, the circuit loop is formed by V+ being connected to the LED+ node, then passing through the LED lamp set one, then connecting to the switch first contact through the W-node, the switch first contact being connected to the switch second contact through the conductive piece inside the toggle switch, the switch second contact being also connected to the switch seventh contact, the switch seventh contact being connected to the switch eighth contact through the conductive piece inside the toggle switch, and finally being connected to V-, thereby forming the single color temperature loop of the LED lamp set one.
[0012] Further, when the toggle switch is toggled to the B position, the circuit loop is formed by V+ being connected to the LED+ node, then passing through the LED lamp set one, then connecting to the switch second contact through the W-node, the diode Dw and the resistor Rw, the switch second contact being also connected to the switch seventh contact, the switch seventh contact being connected to the switch sixth contact through the conductive piece inside the toggle switch, and finally being connected to V-, thereby forming the first single color temperature loop.
[0013] In addition, the circuit loop is formed by V+ being connected to the LED+ node, then passing through the LED lamp set two, then connecting to the switch third contact through the C-node, the diode Dc and the resistor Rc, the switch third contact being connected to the switch second contact through the conductive piece inside the toggle switch, thereby forming parallel connection with the first single color temperature loop, and finally being connected to V- with the first single color temperature loop, thereby forming the second single color temperature loop, and the first single color temperature loop and the second single color temperature loop jointly form the mixed color.
[0014] Further, when the toggle switch is toggled to the C position, the circuit loop is formed by V+ being connected to the LED+ node, then passing through the LED lamp set two, then connecting to the switch fifth contact through the C-node, the switch fifth contact being connected to the switch sixth contact through the conductive piece inside the toggle switch, and finally being connected to V-, thereby forming the single color temperature loop of the LED lamp set two.
[0015] In the utility model, the selection of the switch, the switch and the balancing diode and the balancing resistor are designed with reduced capacity, and the circuit requirements are met.
[0016] The utility model has the advantages and beneficial effects that:
[0017] By controlling the combination of the balance diode and the balance resistor, the function of keeping the input power constant in three different color temperatures is realized, effectively avoiding the problems of over-temperature, premature aging damage of LED load and premature failure of power supply due to overload, prolonging the service life of the product, in addition, without reducing the load power or increasing the power supply power, the switching of three color temperatures can be realized, expanding the application range of the product. BRIEF DESCRIPTION OF DRAWINGS
[0018] The utility model will be further described below in combination with the drawings and embodiments:
[0019] Figure 1 It is the connection schematic view of the switch switching device in the embodiment;
[0020] Figure 2 It is the circuit structure schematic view of the switch switching device in the embodiment;
[0021] Figure 3 It is the circuit structure view when the toggle switch is turned to A position in the embodiment;
[0022] Figure 4 It is the circuit structure view when the toggle switch is turned to B position in the embodiment;
[0023] Figure 5 It is the circuit structure view when the toggle switch is turned to C position in the embodiment. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and the utility model is not limited to the following embodiments.
[0025] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), if the specific posture changes, the directional indications will also change accordingly.
[0026] In addition, if the description of "first" or "second" and the like is involved in the embodiments of the utility model, the description of "first" or "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the same or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary technical personnel, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.
[0027] As shown in Figures 1 to 5 The embodiment discloses a lamp strip hand-operated dual-color temperature constant-power switch switching device, which comprises a power supply 1, a control circuit 2 and an LED load 3, the control circuit 2 is connected between the power supply 1 and the LED load 3, the control circuit 2 comprises a two-knife three-gear type toggle switch, a plurality of balance diodes and a plurality of balance resistors, the LED load 3 comprises two groups of LED lamp groups in parallel and having different color temperatures, which are LED lamp group one and LED lamp group two respectively, the toggle switch controls the LED lamp group one and the LED lamp group two to be connected to different switch contacts, so that different balance diodes and balance resistors are configured respectively, so that the output power of the LED lamp group one and the LED lamp group two is constant when the LED lamp group one and the LED lamp group two are separately lighted or commonly lighted.
[0028] Specifically, the toggle switch comprises A, B and C three gears, when the toggle switch is in the A gear, the LED lamp group one works and the output power is constant, when the toggle switch is in the B gear, the LED lamp group one and the LED lamp group two work simultaneously and the output power is constant, and when the toggle switch is in the C gear, the LED lamp group two works and the output power is constant.
[0029] In the embodiment, the balance diode is provided with two groups and is diode Dw and diode Dc respectively, the balance resistor is provided with two groups and is resistor Rw and resistor Rc respectively, one end of the LED lamp group one and the LED lamp group two is connected to the V+ pole of the power supply 1 through an LED+ node;
[0030] The other end of the LED lamp group one is directly connected to a first contact of a switch through a W-node, and is connected to a second contact of the switch after passing through the diode Dw and the resistor Rw in sequence, and the second contact of the switch is also connected to a seventh contact of the switch;
[0031] The other end of the LED lamp group two is directly connected to a fifth contact of a switch through a C-node, and is connected to a third contact of the switch after passing through the diode Dc and the resistor Rc in sequence, and the fifth contact of the switch is also connected to a fourth contact of the switch.
[0032] The V- pole of the power supply 1 is connected to the sixth contact and the eighth contact of the switch, respectively.
[0033] Furthermore, when the toggle switch is moved to position A, the circuit loop connects V+ to the LED+ node, then through LED group one, and then through the W- node to the first contact of the switch. The first contact of the switch is connected to the second contact of the switch through the conductive plate inside the toggle switch. Since the second contact of the switch is also connected to the seventh contact of the switch, and the seventh contact of the switch is connected to the eighth contact of the switch through the conductive plate inside the toggle switch, it is finally connected to V-, thus forming the single-color temperature circuit of LED group one.
[0034] Furthermore, when the toggle switch is moved to position B, the circuit loop is connected from V+ to the LED+ node, then through the first LED group, then through the W- node to the diode Dw and resistor Rw, and then to the second contact of the switch. The second contact of the switch is also connected to the seventh contact of the switch. The seventh contact of the switch is then connected to the sixth contact of the switch through the conductive plate inside the toggle switch, and finally connected to V-, forming the first single-color temperature circuit.
[0035] In addition, after the circuit loop is connected from V+ to the LED+ node, it also passes through the second LED group, then through the C- node to connect the diode Dc and the resistor Rc, and then to the third contact of the switch. The third contact of the switch is then connected to the second contact of the switch through the conductive plate inside the toggle switch, thus forming a parallel connection with the first single-color temperature circuit. Finally, it is connected to V- along with the first single-color temperature circuit to form the second single-color temperature circuit. The first single-color temperature circuit and the second single-color temperature circuit together form a color mixing circuit.
[0036] Furthermore, when the toggle switch is moved to position C, the circuit loop connects from V+ to the LED+ node, then through LED group two, and then through the C- node to the fifth contact of the switch. The fifth contact of the switch is connected to the sixth contact of the switch through the conductive plate inside the toggle switch, and finally connected to V-, forming the single-color temperature circuit of LED group two.
[0037] In this embodiment, the toggle switch, balancing diode, and balancing resistor are derating to reduce the failure rate of the devices and ensure that the reliability requirements of the design application are met. At the same time, in designs where the power balancing requirements are not high, the diode in the circuit can be eliminated and replaced with a resistor for matching.
[0038] The above described in the specification is only an example of the present application, the skilled in the art can make various modifications or supplements or adopt similar ways instead of the described specific embodiments, as long as it does not deviate from the content of the specification or beyond the scope defined by the claims, it should belong to the protection scope of the present application.
Claims
1. A hand-operated dual-color temperature constant-power switch switching device for a light strip, characterized in that, The application relates to a power supply (1), a control circuit (2) and an LED load (3), wherein the control circuit (2) is connected between the power supply (1) and the LED load (3), the control circuit (2) comprises a two-knife three-gear toggle switch, multiple balancing diodes and multiple balancing resistors, the LED load (3) comprises two groups of LED lamp groups one and two in parallel connection, the toggle switch controls the LED lamp groups one and two to be connected to different switch contacts, thereby different balancing diodes and balancing resistors are configured, and the output power of the LED lamp groups one and two is constant when the LED lamp groups one and two are separately lighted or commonly lighted.
2. The hand-operated dual-color temperature constant-power switch switching device for the lamp strip according to claim 1, characterized in that, The toggle switch comprises three gears A, B and C, when the toggle switch is in the A gear, the LED lamp group one works and the output power is constant; when the toggle switch is in the B gear, the LED lamp groups one and two work simultaneously and the output power is constant; and when the toggle switch is in the C gear, the LED lamp group two works and the output power is constant.
3. The hand-operated dual-color temperature constant-power switch switching device for the lamp strip according to claim 2, characterized in that, The balancing diodes are provided with two groups of diodes Dw and Dc, the balancing resistors are provided with two groups of resistors Rw and Rc, and one end of the LED lamp groups one and two is connected to the V+ pole of the power supply (1) through an LED+ node; The other end of the LED lamp group one is directly connected to a first switch contact through a W- node, and is connected to a second switch contact through the W- node, the diode Dw and the resistor Rw in sequence, the second switch contact is also connected to a seventh switch contact; The other end of the LED lamp group two is directly connected to a fifth switch contact through a C- node, and is connected to a third switch contact through the C- node, the diode Dc and the resistor Rc in sequence, and the fifth switch contact is also connected to a fourth switch contact; The V- pole of the power supply (1) is connected to a sixth switch contact and an eighth switch contact.
4. The hand-operated dual-color temperature constant-power switch switching device for the lamp strip according to claim 3, characterized in that, When the toggle switch is turned to the A position, a single-color temperature loop of the LED lamp group one is formed through the following circuit loop: V+ is connected to the LED+ node, then the LED lamp group one, then the W- node is connected to the first switch contact, the first switch contact is connected to the second switch contact through the conductive sheet inside the toggle switch, the second switch contact is also connected to the seventh switch contact, the seventh switch contact is connected to the sixth switch contact through the conductive sheet inside the toggle switch, and finally V- is connected.
5. The hand-operated dual-color temperature constant-power switch switching device for the lamp strip according to claim 3, characterized in that, When the toggle switch is turned to the B position, a first single-color temperature loop is formed through the following circuit loop: V+ is connected to the LED+ node, then the LED lamp group one, then the W- node is connected to the diode Dw and the resistor Rw, then the second switch contact is connected, the second switch contact is also connected to the seventh switch contact, the seventh switch contact is connected to the sixth switch contact through the conductive sheet inside the toggle switch, and finally V- is connected. In addition, the circuit loop is connected to the LED+ node by V+, then passes through the LED lamp set two, and then is connected to the diode Dc and the resistor Rc through the C- node, and then is connected to the third contact of the switch, and the third contact of the switch is connected to the second contact of the switch through the conductive piece inside the toggle switch, thereby forming a parallel connection with the first single-color temperature loop, and finally is connected to V- together with the first single-color temperature loop, thereby forming the second single-color temperature loop, and the first single-color temperature loop and the second single-color temperature loop together form the mixed color.
6. The hand-operated dual-color temperature constant-power switch switching device for the lamp strip according to claim 3, characterized in that, When the toggle switch is toggled to the C position, the circuit loop is connected to the LED+ node by V+, then passes through the LED lamp set two, and then is connected to the fifth contact of the switch through the C- node, the fifth contact of the switch is connected to the sixth contact of the switch through the conductive piece inside the toggle switch, and finally is connected to V-, thereby forming the single-color temperature loop of the LED lamp set two.
7. The hand-operated dual-color temperature constant-power switch changing device for the lamp strip according to claim 1, characterized in that The selection of the switch, the switch, and the balancing diode and the balancing resistor are designed with a reduced capacity to meet the circuit requirements.