Low-power-consumption signal relay driving circuit

Abstract

The utility model relates to a low power consumption signal relay drive circuit comprising a relay body, the relay body is provided with a conversion part and a conversion circuit, and the conversion part is provided with a first path and a second path; the conversion circuit is provided with a first pin and a second pin, the first pin is connected with a first low-power-consumption circuit and a first driving circuit, the second pin is connected with a second low-power-consumption circuit and a second driving circuit, the first low-power-consumption circuit is connected to the second driving circuit, and the second low-power-consumption circuit is connected to the first driving circuit; the relay body enables the current direction in the conversion circuit to change by switching the first driving circuit or the second driving circuit to work, so that the connection of the first path or the second path is realized; when the first driving circuit works, the first low-power-consumption circuit is in an open-circuit state; and when the second driving circuit works, the second low-power-consumption circuit is in an open-circuit state. The utility model aims to reduce the power consumption of the relay and improve the protection effect on the circuit.

Description

Technical Field

[0001] This utility model relates to the field of electrical control technology, and in particular to a low-power signal relay drive circuit. Background Technology

[0002] As an electronic control device, a relay has both a control system and a controlled system. When a relay is connected to a circuit, the control system and the controlled system respectively form an input circuit and an output circuit. In automatic control circuits, a smaller current can control a larger current, thus forming an automatic switch. Therefore, relays play roles in automatic adjustment, safety protection, and circuit switching. However, when a relay, as an automatic switch and switching circuit, is connected to a circuit requiring control and protection, both its input and output circuits are connected to the circuit. When either the input or output circuit is working, the relay can execute different conduction commands, but since both circuits are connected, the components in the other circuit continue to consume energy while one circuit is working. This results in problems such as high power consumption, severe component overheating, and the need to withstand a large load. Utility Model Content

[0003] The main purpose of this invention is to provide a low-power signal relay drive circuit, which aims to reduce the power consumption of the relay and improve the protection of the circuit.

[0004] To achieve the above objectives, this utility model proposes a low-power signal relay driving circuit, including a relay body, wherein the relay body is provided with a switching part and a switching circuit, and the switching part is provided with a first path and a second path.

[0005] The conversion circuit has a first pin and a second pin. The first pin is connected to a first low-power circuit and a first driving circuit. The second pin is connected to a second low-power circuit and a second driving circuit. The first low-power circuit is connected to the second driving circuit, and the second low-power circuit is connected to the first driving circuit.

[0006] The relay body changes the current direction in the switching circuit by switching the first driving circuit to work or the second driving circuit to work, thereby connecting the first path or the second path.

[0007] When the first driving circuit is working, the first low-power circuit is in an open circuit state.

[0008] When the second driving circuit is working, the second low-power circuit is in an open circuit state.

[0009] In one embodiment of this application, the end of the first driving circuit away from the relay body is connected to a first signal input terminal, and the end of the second driving circuit away from the relay body is connected to a second signal input terminal.

[0010] The first driving circuit is equipped with a first transistor, the first signal input terminal is connected to the base of the first transistor, the emitter of the first transistor is connected to a ground loop, and the collector of the first transistor is connected to the first pin.

[0011] In one embodiment of this application, the first transistor is an NPN transistor, and a first resistor is provided between the base and emitter of the first transistor.

[0012] In one embodiment of this application, the end of the first low-power circuit furthest from the relay body is connected to a first activation voltage, and the end of the second low-power circuit furthest from the relay body is connected to a second activation voltage.

[0013] The second low-power circuit includes a second transistor, a first activation voltage is connected to the emitter of the second transistor, the base of the second transistor is connected to the first pin of the relay body, and the collector of the second transistor is connected to the second pin of the relay body.

[0014] In one embodiment of this application, the second transistor is a PNP transistor, and a second resistor is provided between the base and emitter of the second transistor.

[0015] By adopting the above technical solution, this utility model has the following advantages:

[0016] 1. The relay body is provided with a switching part and a switching circuit. The switching part is configured with a first path and a second path. The first path and the second path have different pins for connection. The switching circuit includes a first pin and a second pin. The relay body is configured such that, depending on the different current directions between the first pin and the second pin, the first path is turned on or the second path is turned on, thereby realizing the automatic switching and switching functions of the relay body.

[0017] 2. The first pin is connected to a first low-power circuit and a first driving circuit, and the second pin is connected to a second low-power circuit and a second driving circuit. The first low-power circuit is connected to the second driving circuit, and the second low-power circuit is connected to the first driving circuit. The low-power circuit is used to form the connection loop of the relay. The driving circuit is connected to an external activation voltage, which is used to make the first driving circuit or the second driving circuit work. When the first driving circuit works, the second low-power circuit will work, so that the current direction is from the second pin to the first pin, which can efficiently connect the first path of the relay body. When the second driving circuit works, the first low-power circuit will work, so that the current direction is from the first pin to the second pin, which can efficiently connect the second path of the relay body. In this way, the automatic adjustment of the relay can be realized, improving the overall flexibility of the circuit and improving the user experience.

[0018] 3. The low-power circuit is equipped with an adjustment module that controls the circuit's on / off state based on the current direction. When the first drive circuit is working, although the first low-power circuit is connected to the circuit, the adjustment module can completely disconnect the first low-power current. When the second drive circuit is working, the second low-power circuit is also disconnected. This design effectively protects the circuit. In addition, except for the relay's working components, all other connected components are disconnected, which effectively reduces power loss and power consumption. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the low-power signal relay drive circuit of this utility model.

[0021] Explanation of icon numbers:

[0022] 1. Relay body; 11. Switching unit; 12. First path; 13. Second path; 2. Switching circuit; 21. First pin; 22. Second pin; 3. First low-power circuit; 4. First driving circuit; 41. First transistor; 42. First signal input terminal; 5. Second low-power circuit; 6. Second driving circuit; 61. Second transistor; 62. Second signal input terminal.

[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0025] Reference Figure 1 To achieve the above objectives, this utility model proposes a low-power signal relay driving circuit, which includes a relay body 1, a switching part 11 and a switching circuit 2, and a first path 12 and a second path 13.

[0026] The conversion circuit 2 has a first pin 21 and a second pin 22. The first pin 21 is connected to the first low-power circuit 3 and the first driving circuit 4. The second pin 22 is connected to the second low-power circuit 5 and the second driving circuit 6. The first low-power circuit 3 is connected to the second driving circuit 6, and the second low-power circuit 5 is connected to the first driving circuit 4.

[0027] The relay body 1 changes the current direction in the switching circuit 2 by switching the first driving circuit 4 or the second driving circuit 6 to achieve the connection of the first path 12 or the second path 13.

[0028] When the first driving circuit 4 is working, the first low-power circuit 3 is in an open circuit state.

[0029] When the second driving circuit 6 is working, the second low-power circuit 5 is in an open circuit state.

[0030] The relay body 1 is provided with a switching part 11 and a switching circuit 2. The switching part 11 is configured with a first path 12 and a second path 13. The first path 12 and the second path 13 have different pins for connection. The switching circuit 2 includes a first pin 21 and a second pin 22. The relay body 1 is configured such that the first path 12 is turned on or the second path 13 is turned on according to the different current directions between the first pin 21 and the second pin 22, thereby realizing the automatic switching of the relay body 1 and the switching circuit 2.

[0031] The first pin 21 is connected to the first low-power circuit 3 and the first drive circuit 4, and the second pin 22 is connected to the second low-power circuit 5 and the second drive circuit 6. The first low-power circuit 3 is connected to the second drive circuit 6, and the second low-power circuit 5 is connected to the first drive circuit 4. The low-power circuits are used to form the connection loop of the relay. The drive circuit is connected to an external activation voltage, which is used to make the first drive circuit 4 or the second drive circuit 6 work. When the first drive circuit 4 works, the second low-power circuit 5 will work, so that the current direction is from the second pin 22 to the first pin 21, which can efficiently connect the first path 12 of the relay body 1. When the second drive circuit 6 works, the first low-power circuit 3 will work, so that the current direction is from the first pin 21 to the second pin 22, which can efficiently connect the second path 13 of the relay body 1. In this way, the automatic adjustment of the relay can be realized, improving the overall flexibility of the circuit and improving the user experience.

[0032] The low-power circuit is equipped with an adjustment module that controls the circuit's on / off state based on the current direction. When the first drive circuit 4 is working, although the first low-power circuit 3 is connected to the circuit, the adjustment module can completely disconnect the first low-power current. When the second drive circuit 6 is working, the second low-power circuit 5 is also disconnected. This design effectively protects the circuit. In addition, except for the relay's working components, the other connected components are disconnected, which effectively reduces power loss and power consumption.

[0033] See also Figure 1 The first driving circuit 4 is connected to the first signal input terminal 42 at the end away from the relay body 1, and the second driving circuit 6 is connected to the second signal input terminal 62 at the end away from the relay body 1.

[0034] The first driving circuit 4 is provided with a first transistor 41, a first signal input terminal 42 connected to the base of the first transistor 41, a ground loop connected to the emitter of the first transistor 41, and a first pin 21 connected to the collector of the first transistor 41.

[0035] Both the first driving circuit 4 and the second driving circuit 6 are connected to signal input terminals. When the first signal input terminal 42 connected to the first driving circuit 4 is at a high level and the second signal input terminal 62 connected to the second driving circuit 6 is at a low level, the first driving circuit 4 will be activated. The first driving circuit 4 and the second driving circuit 6 have the same structure and both use transistors to perform on / off management.

[0036] In the first driving circuit 4, the emitter of the first transistor 41 is grounded, its base is connected to the first signal input terminal 42, and its collector is connected to the first pin 21. A high-level signal is given to the first signal input terminal 42, and a low-level signal is given to the second signal input terminal 62. This turns on the first transistor 41, activates the second low-power circuit 5, and cuts off the second driving circuit 6 and the first low-power circuit 3. At this time, current flows from the second pin 22 of the relay body 1 to the first pin 21 of the relay, and through the collector of the first transistor 41 to the emitter, connecting to the ground circuit.

[0037] Furthermore, because the relay's switching section 11 includes multiple pins with different current directions, the first path 12 can be ignited. Specifically, the switching section 11 includes a third pin, a fourth pin, a fifth pin, a sixth pin, a seventh pin, and an eighth pin. When the first signal input terminal 42 is at a high level, the relay body 1 can switch from igniting the fifth and seventh pins to igniting the sixth and eighth pins; or switch from igniting the fifth and third pins to igniting the sixth and fourth pins. While the first path 12 is ignited, the first low-power circuit 3 is cut off, resulting in a circuit with no loop and no power consumption. This effectively reduces power consumption and improves the user experience while protecting the circuit.

[0038] See also Figure 1 The first transistor 41 is an NPN transistor, and a first resistor is provided between the base and emitter of the first transistor 41.

[0039] The first transistor 41 is an NPN transistor with its emitter arrow pointing away from the base, which allows the circuit to be stably grounded and ensures circuit safety. The first resistor can effectively protect the first transistor 41 itself.

[0040] See also Figure 1 The first low-power circuit 3 is connected to a first activation voltage at the end furthest from the relay body 1, and the second low-power circuit 5 is connected to a second activation voltage at the end furthest from the relay body 1.

[0041] The second low-power circuit 5 is provided with a second transistor 61. A first activation voltage is connected to the emitter of the second transistor 61, the base of the second transistor 61 is connected to the first pin 21 of the relay body 1, and the collector of the second transistor 61 is connected to the second pin 22 of the relay body 1.

[0042] The low-power circuit is connected to an activation voltage, which is a stable 5V voltage. This voltage can drive the entire circuit and generate a directional current between the first pin 21 and the second pin 22 inside the relay body 1. The second low-power circuit 5 has the same structure as the first low-power circuit 3. The second low-power circuit 5 is equipped with a second transistor 61. The collector of the second transistor 61 is connected to the relay body 1. This ensures that when the second low-power circuit 5 is working, the first low-power circuit 3 is cut off, which can effectively reduce the power consumption of the circuit and reduce the heat generated when the relay is working.

[0043] See also Figure 1 The second transistor 61 is a PNP type transistor, and a second resistor is provided between the base and emitter of the second transistor 61.

[0044] The second transistor 61 is a PNP transistor with its emitter arrow pointing towards the base. Together with the first transistor 41, it can effectively ensure the direction of current and at the same time facilitate the cutoff of another low-power circuit, thereby improving the protection effect of the entire relay drive circuit.

[0045] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0046] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A low-power signal relay driving circuit, comprising a relay body, characterized in that, The relay body is provided with a switching part and a switching circuit, and the switching part is provided with a first path and a second path; The conversion circuit has a first pin and a second pin. The first pin is connected to a first low-power circuit and a first driving circuit. The second pin is connected to a second low-power circuit and a second driving circuit. The first low-power circuit is connected to the second driving circuit, and the second low-power circuit is connected to the first driving circuit. The relay body changes the current direction in the switching circuit by switching the first driving circuit to work or the second driving circuit to work, thereby connecting the first path or the second path. When the first driving circuit is working, the first low-power circuit is in an open circuit state. When the second driving circuit is working, the second low-power circuit is in an open circuit state.

2. The low-power signal relay driving circuit according to claim 1, characterized in that, The end of the first driving circuit furthest from the relay body is connected to a first signal input terminal, and the end of the second driving circuit furthest from the relay body is connected to a second signal input terminal; The first driving circuit is equipped with a first transistor, the first signal input terminal is connected to the base of the first transistor, the emitter of the first transistor is connected to a ground loop, and the collector of the first transistor is connected to the first pin.

3. The low-power signal relay driving circuit according to claim 2, characterized in that, The first transistor is an NPN transistor, and a first resistor is provided between the base and emitter of the first transistor.

4. The low-power signal relay driving circuit according to claim 1, characterized in that, The end of the first low-power circuit furthest from the relay body is connected to a first activation voltage, and the end of the second low-power circuit furthest from the relay body is connected to a second activation voltage. The second low-power circuit includes a second transistor, a first activation voltage is connected to the emitter of the second transistor, the base of the second transistor is connected to the first pin of the relay body, and the collector of the second transistor is connected to the second pin of the relay body.

5. A low-power signal relay driving circuit according to claim 4, characterized in that, The second transistor is a PNP type transistor, and a second resistor is provided between the base and emitter of the second transistor.

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