An acceleration overload relay
By implementing configurability of the acceleration overload relay through hardware circuit design, the problem of the inability to change the overload acceleration value and overload direction is solved, enabling the universal use of the overload relay and reducing the development cycle and cost of weapon models.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUIZHOU SPACE APPLIANCE CO LTD
- Filing Date
- 2022-12-22
- Publication Date
- 2026-07-24
AI Technical Summary
The overload acceleration value and overload direction of existing acceleration overload relays cannot be changed after assembly, which leads to a longer weapon development cycle and increased costs.
Through hardware circuit design, the overload acceleration value, overload direction, and overload action time of the overload relay are externally configurable. Solid-state isolation unit, solid-state output unit, overload unit, overload direction selection unit, and overload action time unit are used, and configuration is achieved using resistors, capacitors, and DC voltage signals.
This enabled the universal use of overload relays, reducing the development cycle and cost of weapon models.
Smart Images
Figure CN116013729B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of relay technology, and specifically relates to an acceleration overload relay. Background Technology
[0002] Currently, overload relays are all customized products. Once assembled, the overload acceleration value and overload direction of the overload relay cannot be changed. If the user requires a product with different overload acceleration values and overload directions, it needs to be redeveloped, increasing the development cycle and cost of weapon models. Chinese patent CN104037019B discloses an acceleration overload relay and its operating method, which can avoid harmful acceleration for a certain period of time before falling into water. However, it cannot adjust the overload acceleration value and overload direction according to actual application conditions. Therefore, there is an urgent need for an acceleration overload relay that can change the overload acceleration value and overload direction after assembly, thereby reducing the development cycle and cost of weapon models using such relays. Summary of the Invention
[0003] To address the aforementioned technical problems, this invention provides an acceleration overload relay. This acceleration overload relay enables external configuration of the overload acceleration value, overload direction, and overload action time through hardware, thereby achieving universal use of the overload relay and overcoming the drawback that the overload acceleration value and overload direction of the overload relay cannot be changed.
[0004] The present invention is achieved through the following technical solutions.
[0005] This invention provides an acceleration overload relay, comprising a solid-state relay, an overload unit, an overload action time unit, and an overload direction selection unit; IN1+, IN1-, IN2+, and IN2- terminals; a g terminal and a T terminal; and OUT+ and OUT- terminals. The solid-state relay includes a solid-state isolation unit and a solid-state output unit. The solid-state isolation unit includes a diode D1 and an optocoupler U1. The solid-state output unit includes a diode D2, a transistor Q2, and a MOSFET Q1. The overload unit includes a diode D3, a resistor R2, a three-terminal voltage regulator U2, a resistor R4, and a voltage regulator. The circuit consists of diode D4, accelerometer U4, comparator U3, and resistor R5; the overload direction selection unit includes an analog switch U5; the overload action time unit includes a thyristor Q3; the anode of diode D1 is connected to the IN1+ terminal, and the cathode is connected to the first pin of optocoupler U1; the second pin of optocoupler U1 is connected to the anode of thyristor Q3, the third pin of optocoupler U1 is connected to the collector of transistor Q2, and the fourth pin of optocoupler U1 is connected to the anode of diode D2 and the base of transistor Q2; the cathode of diode D2 is connected to the emitter of transistor Q2; the gate of MOSFET Q1 is connected to diode D3. The cathode and source of diode D2 are connected to the OUT- terminal, and the drain is connected to the OUT+ terminal. The gate of thyristor Q3 is connected to the T terminal, and its cathode is connected to the fourth pin of comparator U3. The first pin of comparator U3 is connected to the T terminal, the second pin is connected to the g terminal, the third pin is connected to the seventh pin of analog switch U5, the fourth pin is connected to the cathode of thyristor Q3, and the eighth pin is connected to the output terminal of three-terminal regulator U2. The anode of diode D3 is connected to the IN1+ terminal, and the cathode is connected to the input terminal of three-terminal regulator U2. The ground terminal of three-terminal regulator U2 is connected to the IN1- terminal. One end of resistor R4 is connected to the three-terminal regulator. The output terminal of device U2 is connected to the negative terminal of Zener diode D4; the positive terminal of Zener diode D4 is connected to the IN1- terminal; the sixth, seventh, and tenth pins of the accelerometer U4 are connected to the negative terminal of Zener diode D4, the second pin is connected to the third pin of analog switch U5, the third pin is connected to the second pin of analog switch U5, the fourth pin is connected to the first pin of analog switch U5, and the fifth pin is connected to the fourth pin of comparator U3; the fourth pin of analog switch U5 is connected to the IN2- terminal, the fifth pin is connected to the DIR2 terminal, the sixth pin is connected to the DIR1 terminal, and the eighth pin is connected to the IN2+ terminal.
[0006] Furthermore, the solid isolation unit also includes a resistor R1, one end of which is connected to the negative terminal of the diode D1, and the other end is connected to the first pin of the optocoupler U1.
[0007] Furthermore, the overload unit also includes a resistor R2, one end of which is connected to the negative terminal of the diode D3, and the other end is connected to the input terminal of the three-terminal regulator U2.
[0008] Furthermore, the overload unit also includes a resistor R7, one end of which is connected to the third pin of the optocoupler U1, and the other end of which is connected to the fourth pin of the optocoupler U1.
[0009] Furthermore, the overload unit also includes a capacitor C1, one end of which is connected to the input terminal of the three-terminal voltage regulator U2, and the other end is connected to the ground terminal of the three-terminal voltage regulator U2.
[0010] Furthermore, the overload unit also includes a capacitor C2, one end of which is connected to the input terminal of the three-terminal voltage regulator U2, and the other end is connected to the ground terminal of the three-terminal voltage regulator U2.
[0011] Furthermore, the overload unit also includes a capacitor C3, one end of which is connected to the ground terminal of the three-terminal regulator U2, and the other end is connected to the third pin of the comparator U3.
[0012] Furthermore, the overload action time unit also includes a resistor R3, one end of which is connected to the output terminal of the three-terminal regulator U2, and the other end is connected to the first pin of the comparator U3.
[0013] Furthermore, the overload action time unit also includes a resistor R6, one end of which is connected to the first pin of the comparator U3, and the other end is connected to the T terminal.
[0014] The beneficial effects of the present invention are as follows: The acceleration overload relay provided by the present invention can realize the external configuration of the overload acceleration value, overload direction, and overload action time through hardware circuits via external matching resistors, capacitors, and DC voltage signals, thereby realizing the universal use of the overload relay and solving the drawback that the overload acceleration value and overload direction of the overload relay cannot be changed. Attached Figure Description
[0015] Figure 1 This is a block diagram illustrating the composition principle of the present invention;
[0016] Figure 2 This is a circuit connection diagram of the present invention. Detailed Implementation
[0017] The technical solution of the present invention is further described below, but the scope of protection is not limited to what is described.
[0018] like Figure 1-2As shown, an acceleration overload relay includes a solid-state relay, an overload unit, an overload action time unit, and an overload direction selection unit; IN1+, IN1-, IN2+, and IN2- terminals; g and T terminals; OUT+ and OUT- terminals; the solid-state relay includes a solid-state isolation unit and a solid-state output unit, the solid-state isolation unit including a diode D1 and an optocoupler U1; the solid-state output unit including a diode D2, a transistor Q2, and a MOSFET Q1; the overload unit includes a diode D3, a resistor R2, a three-terminal voltage regulator U2, a resistor R4, and a Zener diode. D4, accelerometer U4, comparator U3, resistor R5; overload direction selection unit includes analog switch U5; overload action time unit includes thyristor Q3; diode D1's anode is connected to IN1+, and its cathode is connected to the first pin of optocoupler U1; the second pin of optocoupler U1 is connected to the anode of thyristor Q3, the third pin of optocoupler U1 is connected to the collector of transistor Q2, and the fourth pin of optocoupler U1 is connected to the anode of diode D2 and the base of transistor Q2; the cathode of diode D2 is connected to the emitter of transistor Q2; the gate of MOSFET Q1 is connected to the diode D2's... The cathode and source are connected to the OUT- terminal, and the drain is connected to the OUT+ terminal; the gate of thyristor Q3 is connected to the T terminal, and the cathode is connected to the fourth pin of comparator U3; the first pin of comparator U3 is connected to the T terminal, the second pin is connected to the g terminal, the third pin is connected to the seventh pin of analog switch U5, the fourth pin is connected to the cathode of thyristor Q3, and the eighth pin is connected to the output of three-terminal regulator U2; the anode of diode D3 is connected to the IN1+ terminal, and the cathode is connected to the input of three-terminal regulator U2; the ground terminal of three-terminal regulator U2 is connected to the IN1- terminal; one end of resistor R4 is connected to three-terminal regulator U2. The output terminal of 2 is connected to the negative terminal of Zener diode D4; the positive terminal of Zener diode D4 is connected to the IN1- terminal; the sixth, seventh, and tenth pins of accelerometer U4 are connected to the negative terminal of Zener diode D4, the second pin is connected to the third pin of analog switch U5, the third pin is connected to the second pin of analog switch U5, the fourth pin is connected to the first pin of analog switch U5, and the fifth pin is connected to the fourth pin of comparator U3; the fourth pin of analog switch U5 is connected to the IN2- terminal, the fifth pin is connected to the DIR2 terminal, the sixth pin is connected to the DIR1 terminal, and the eighth pin is connected to the IN2+ terminal.
[0019] The solid-state isolation unit also includes resistor R1, one end of which is connected to the cathode of diode D1, and the other end is connected to the first pin of optocoupler U1. The overload unit also includes resistor R2, one end of which is connected to the cathode of diode D3, and the other end is connected to the input of three-terminal regulator U2. The overload unit also includes resistor R7, one end of which is connected to the third pin of optocoupler U1, and the other end is connected to the fourth pin of optocoupler U1. The overload unit also includes capacitor C1, one end of which is connected to the input of three-terminal regulator U2, and the other end is connected to the ground of three-terminal regulator U2. The overload unit also includes capacitor C2, one end of which is connected to the input of three-terminal regulator U2, and the other end is connected to the ground of three-terminal regulator U2. The overload unit also includes capacitor C3, one end of which is connected to the ground of three-terminal regulator U2, and the other end is connected to the third pin of comparator U3. The overload action time unit also includes resistor R3, one end of which is connected to the output of the three-terminal regulator U2, and the other end is connected to the first pin of comparator U3. The overload action time unit also includes resistor R6, one end of which is connected to the first pin of comparator U3, and the other end is connected to the T terminal.
[0020] In practice, the main aspects include the following:
[0021] 1. Priority selection circuit for solid-state isolation unit and solid-state output unit.
[0022] Diode D1, resistor R1, and optocoupler U1 constitute a solid-state isolation unit. This unit uses an opto-isolation circuit, which has a simple circuit structure and low cost. When a working voltage is applied to the IN1+ terminal and the thyristor Q3 is in the conducting state, the output terminal of optocoupler U1 generates a voltage, which drives the MOSFET Q1 to turn on.
[0023] Resistor R7, diode D2, transistor Q2, and MOSFET Q1 constitute a solid-state output unit. When no voltage is applied to the IN1+ terminal, the MOSFET Q1, which is in the ON state, discharges the voltage between the G and S terminals of the MOSFET through the discharge circuit composed of resistor R7, diode D2, and transistor Q2, thus turning the MOSFET Q1 into the OFF state.
[0024] 2. Overload unit priority selection circuit
[0025] Diode D3, resistor R2, capacitor C1, three-terminal regulator U2, capacitor C2, resistor R4, Zener diode D4, accelerometer U4, capacitor C3, comparator U3, and resistor R5 constitute an overload power supply. Among them, the three-terminal regulator U2 supplies power to the comparator U3; the voltage regulation circuit formed by resistor R4 and Zener diode D4 supplies power to the accelerometer U4; and resistor R5 and the external resistor connected to IN1- and g terminals constitute the configuration of the overload acceleration value.
[0026] 3. Overload direction selection unit priority selection circuit
[0027] Analog switch U5 constitutes an overload direction selection unit. Analog switch U5 is powered through IN2+ and IN2- terminals. By configuring the high and low levels of ports DIR1 and DIR2, X, Y, and Z are selected as the overload direction.
[0028] 4. Overload action time unit priority selection circuit
[0029] Resistors R3 and R6, along with thyristor Q3, constitute an overload action time unit. By connecting capacitors externally to the IN1- and T terminals, the thyristor Q3 is turned on with a delay, thereby affecting the turn-on time of optocoupler U1.
[0030] The overload relay output provided by this invention adopts a solid-state relay method, consisting of a solid-state isolation unit and a solid-state output unit, powered by IN1+ and IN1-. The overload unit and pulse width delay unit are powered by IN1+ and IN1-, and the overload direction selection unit is powered by IN2+ and IN2-. The X, Y, and Z overload directions are selected by applying high or low levels to DIR1 and DIR2 connected to the overload direction selection unit. The overload acceleration value is configured by soldering resistors of different resistance values between the overload unit port g and IN1-. The overload action time is configured by soldering capacitors of different capacitance values between the overload action time unit port T and IN1-.
Claims
1. An acceleration overload relay, characterized in that: This system includes a solid-state relay, an overload unit, an overload action time unit, and an overload direction selection unit; IN1+, IN1-, IN2+, and IN2- terminals; g and T terminals; OUT+ and OUT- terminals; the solid-state relay includes a solid-state isolation unit and a solid-state output unit; the solid-state isolation unit includes a diode D1 and an optocoupler U1; the solid-state output unit includes a diode D2, a transistor Q2, and a MOSFET Q1; the overload unit includes a diode D3, a resistor R2, a three-terminal voltage regulator U2, a resistor R4, a Zener diode D4, and an acceleration sensor U4. The system includes a comparator U3 and a resistor R5; the overload direction selection unit includes an analog switch U5; the overload action time unit includes a thyristor Q3; the anode of diode D1 is connected to the IN1+ terminal, and the cathode is connected to the first pin of optocoupler U1; the second pin of optocoupler U1 is connected to the anode of thyristor Q3, the third pin of optocoupler U1 is connected to the collector of transistor Q2, and the fourth pin of optocoupler U1 is connected to the anode of diode D2 and the base of transistor Q2; the cathode of diode D2 is connected to the emitter of transistor Q2; the gate of MOSFET Q1 is connected to the cathode of diode D2, and the source is connected to... The OUT- terminal is connected to the OUT- terminal, and the drain is connected to the OUT+ terminal; the gate of the thyristor Q3 is connected to the T terminal, and the cathode is connected to the fourth pin of the comparator U3; the first pin of the comparator U3 is connected to the T terminal, the second pin is connected to the g terminal, the third pin is connected to the seventh pin of the analog switch U5, the fourth pin is connected to the cathode of the thyristor Q3, and the eighth pin is connected to the output terminal of the three-terminal regulator U2; the anode of the diode D3 is connected to the IN1+ terminal, and the cathode is connected to the input terminal of the three-terminal regulator U2; the ground terminal of the three-terminal regulator U2 is connected to the IN1- terminal; one end of the resistor R4 is connected to the three-terminal regulator U2. The output terminal is connected to the negative terminal of Zener diode D4; the positive terminal of Zener diode D4 is connected to the IN1- terminal; the sixth, seventh, and tenth pins of the accelerometer U4 are connected to the negative terminal of Zener diode D4, the second pin is connected to the third pin of analog switch U5, the third pin is connected to the second pin of analog switch U5, the fourth pin is connected to the first pin of analog switch U5, and the fifth pin is connected to the fourth pin of comparator U3; the fourth pin of analog switch U5 is connected to the IN2- terminal, the fifth pin is connected to the DIR2 terminal, the sixth pin is connected to the DIR1 terminal, and the eighth pin is connected to the IN2+ terminal.
2. The acceleration overload relay as described in claim 1, characterized in that: The solid isolation unit also includes a resistor R1, one end of which is connected to the negative terminal of the diode D1, and the other end is connected to the first pin of the optocoupler U1.
3. The acceleration overload relay as described in claim 1, characterized in that: The overload unit also includes a resistor R2, one end of which is connected to the negative terminal of the diode D3, and the other end is connected to the input terminal of the three-terminal regulator U2.
4. The acceleration overload relay as described in claim 1, characterized in that: The overload unit also includes a resistor R7, one end of which is connected to the third pin of the optocoupler U1, and the other end of which is connected to the fourth pin of the optocoupler U1.
5. The acceleration overload relay as described in claim 1, characterized in that: The overload unit also includes a capacitor C1, one end of which is connected to the input terminal of the three-terminal voltage regulator U2, and the other end is connected to the ground terminal of the three-terminal voltage regulator U2.
6. The acceleration overload relay as described in claim 1, characterized in that: The overload unit also includes a capacitor C2, one end of which is connected to the input terminal of the three-terminal voltage regulator U2, and the other end is connected to the ground terminal of the three-terminal voltage regulator U2.
7. The acceleration overload relay as described in claim 1, characterized in that: The overload unit also includes a capacitor C3, one end of which is connected to the ground terminal of the three-terminal regulator U2, and the other end is connected to the third pin of the comparator U3.
8. The acceleration overload relay as described in claim 1, characterized in that: The overload action time unit also includes a resistor R3, one end of which is connected to the output terminal of the three-terminal regulator U2, and the other end is connected to the first pin of the comparator U3.
9. The acceleration overload relay as described in claim 1, characterized in that: The overload action time unit also includes a resistor R6, one end of which is connected to the first pin of the comparator U3, and the other end is connected to the T terminal.