Temperature warning control circuit applied to winch system

Abstract

The utility model discloses a temperature warning control circuit applied to a winch system. The second control circuit is used for sensing the temperature of the winch system; the second control circuit is electrically connected with a first control circuit used for carrying out voltage reduction and voltage stabilization control on input voltage and a third control circuit used for warning through light flickering according to different winch system temperature ranges, and the temperature of the position where the NTC is located is sensed according to resistance values of the NTC resistor at different temperatures. The three-color LED lamp is driven to display different colors by combining the ratio of red to green to blue: blue represents low temperature, green represents normal temperature, yellow and red represents high temperature, and when the detected temperature exceeds 95 DEG C, the red lamp flickers to warn an operator to stop operation of the winch, so that the winch is effectively prevented from being damaged by overheating and overload, and the safety of a winch system is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to winch system temperature warning control technical field, specifically related to a temperature warning control circuit for winch system. BACKGROUND

[0002] At present, in the winch system operation, the winch will meet the high temperature or high load working condition in the process of winding, and the operator cannot know the real-time working condition of the winch in time, which can cause the winch overload and even damage the winch.

[0003] That is, the operator cannot intuitively judge the temperature condition of the winch in the winding process in the winch system operation, and cannot effectively prevent the winch from overheating and overload damage to improve the safety of the winch system.

[0004] Therefore, in view of the technical problems of the operator cannot intuitively judge the temperature condition of the winch in the winding process, and cannot effectively prevent the winch from overheating and overload damage, it is urgent to design and develop a temperature warning control circuit for winch system. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a temperature warning control circuit for winch system,

[0006] The utility model aims at providing a temperature warning control circuit for winch system,

[0007] Further, the first control circuit is provided with a first control chip;

[0008] The third pin of the first control chip is connected with one end of the first capacitor, one end of the fifth capacitor and one end of the twelfth resistor respectively;

[0009] The other end of the twelfth resistor is connected with the power supply end, the negative electrode of the first diode and the negative electrode of the second diode respectively, and the positive electrode of the second diode is connected with the second pin of the first interface;

[0010] The first pin of the first interface, the positive electrode of the first diode, the other end of the fifth capacitor, the other end of the first capacitor, the second pin of the first control chip and one end of the third capacitor are grounded in common;

[0011] The first pin of the first control chip is connected with the power supply end, the other end of the third capacitor and the second control circuit respectively.

[0012] Further, the first control chip is a three-terminal voltage regulator.

[0013] The first control chip is a model 78L05.

[0014] Further, the second control circuit is provided with a second control chip.

[0015] The first pin of the second control chip is electrically connected with the first control circuit, one end of the second capacitor and one end of the eleventh resistor respectively; the second control circuit is electrically connected with the third control circuit through the second pin, the third pin and the fourth pin of the second control chip;

[0016] The fifth pin of the second control chip is connected with one end of the fourth capacitor and one end of the tenth resistor respectively; the eighth pin of the second control chip is connected with the other end of the second capacitor and the other end of the first thermistor respectively.

[0017] The other end of the eleventh resistor is connected with the other end of the tenth resistor and one end of the first thermistor respectively.

[0018] The other end of the fourth capacitor is connected with the other end of the first thermistor.

[0019] Further, the model of the second control chip is PIC12F629.

[0020] Further, the third control circuit includes a fourth control circuit for light flickering warning when the winch system is in a low temperature state, a fifth control circuit for light flickering warning when the winch system is in a normal temperature state, and a sixth control circuit for light flickering warning when the winch system is in a high temperature state.

[0021] The fourth control circuit, the fifth control circuit and the sixth control circuit are electrically connected with each other.

[0022] Further, the sixth control circuit is provided with at least three light emitting diodes for red light flickering warning.

[0023] The sixth control circuit is provided with a first triode, and the collector of the first triode is electrically connected with a third light emitting diode, a second light emitting diode and a first light emitting diode in sequence.

[0024] The base of the first triode is connected with the collector of a second triode and one end of a first resistor respectively; the other end of the first resistor is connected with the second control circuit.

[0025] The base of the second triode is connected with one end of the third resistor; the other end of the third resistor is connected with the emitter of the first triode and one end of the second resistor respectively;

[0026] The emitter of the second triode is connected with the other end of the second resistor and the ground.

[0027] Further, at least three light emitting diodes for warning by green light flashing are arranged in the fifth control circuit;

[0028] A third triode is arranged in the fifth control circuit, the collector of the third triode is connected with a sixth light emitting diode, a fifth light emitting diode and a fourth light emitting diode in sequence;

[0029] The base of the third triode is connected with the collector of a fourth triode and one end of a fifth resistor respectively; the other end of the fifth resistor is connected with the second control circuit;

[0030] The base of the fourth triode is connected with one end of a seventh resistor; the other end of the seventh resistor is connected with the emitter of the third triode and one end of a fourth resistor respectively;

[0031] The emitter of the fourth triode is connected with the other end of the fourth resistor and the ground.

[0032] Further, at least three light emitting diodes for warning by blue light flashing are arranged in the fourth control circuit;

[0033] A fifth triode is arranged in the fourth control circuit, the collector of the fifth triode is connected with a ninth light emitting diode, an eighth light emitting diode and a seventh light emitting diode in sequence;

[0034] The base of the fifth triode is connected with the collector of a sixth triode and one end of an eighth resistor respectively; the other end of the eighth resistor is connected with the second control circuit;

[0035] The base of the sixth triode is connected with one end of a ninth resistor; the other end of the ninth resistor is connected with the emitter of the fifth triode and one end of a sixth resistor respectively;

[0036] The emitter of the sixth triode is connected with the other end of the sixth resistor and the ground.

[0037] Further, the model of the first triode is D882; the model of the second triode is MMBT3904.

[0038] The model of the third triode is D882; the model of the fourth triode is MMBT3904.

[0039] The utility model discloses a circuit includes for realizing to the second control circuit of capstan system temperature response, first control circuit and third control circuit for warning through the light flicker of different capstan system temperature range for respectively electric connection for the voltage reduction and voltage stabilizing control of input voltage to different temperature under the resistance of NTC resistance, through the temperature of inductive NTC position, and the ratio of red green blue three colors to drive three color LED lamp, show different color: blue color indicates low temperature, green color indicates normal temperature, yellow and red indicate high temperature, when the detection temperature exceeds 95 DEG C, and red light flicker warning operator needs to stop the capstan operation to prevent the capstan overheating overload damage effectively, improve the security of capstan system. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will be needed to use the drawing in the embodiment description, obviously, the following description in the drawing is only some embodiments of the utility model, for the ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings, and

[0041] Fig. 1 It is a temperature warning control circuit structure schematic view for the capstan system of the utility model,

[0042] Fig. 2 It is an embodiment schematic view of the temperature warning control circuit for the capstan system of the utility model.

[0043] In the figure: C1 - first capacitor; C2 - second capacitor; C3 - third capacitor; C4 - fourth capacitor; C5 - fifth capacitor; R12 - twelfth resistor; D1 - first diode; D2 - second diode; J1 - first interface; IC1 - first control chip; U2 - second control chip; NTC1 - first thermistor; Q1 - first triode; Q2 - second triode; Q3 - third triode; Q4 - fourth triode; Q5 - fifth triode; Q6 - sixth triode; R4 - fourth resistor; LED9 - ninth light-emitting diode; LED8 - eighth light-emitting diode; LED7 - seventh light-emitting diode; LED6 - sixth light-emitting diode; LED5 - fifth light-emitting diode; LED4 - fourth light-emitting diode; LED3 - third light-emitting diode; LED2 - second light-emitting diode; LED1 - first light-emitting diode; R1 - first resistor; R2 - second resistor; R3 - third resistor; R5 - fifth resistor; R6 - sixth resistor; R7 - seventh resistor; R8 - eighth resistor; R9 - ninth resistor; R10 - tenth resistor; R11 - eleventh resistor. DETAILED DESCRIPTION

[0044] For the purpose of better understanding the purpose, technical scheme and advantages of the present application, the present application is further described below in conjunction with the drawings and specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the present specification.

[0045] The present application can also be implemented or applied through other different specific examples, and each detail in the present specification can be modified and changed in various ways without departing from the spirit of the present application.

[0046] It should be noted that if the present application embodiments involve directional indications (such as up, down, left, right, front, back, 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 also change accordingly.

[0047] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "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", "second" can be explicitly or implicitly included at least one of the features. Secondly, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0048] The utility model is further described below in combination with the drawings.

[0049] As shown in Figs. 1-2 The utility model provides a temperature warning control circuit for capstan system, the circuit includes the second control circuit for realizing the temperature response of capstan system, the second control circuit is electrically connected with the first control circuit for voltage reduction and voltage stabilizing control and the third control circuit for warning through light flicker according to different capstan system temperature range respectively.

[0050] The first control circuit is provided with first control chip;

[0051] The third pin of the first control chip is connected with one end of the first capacitor, one end of the fifth capacitor and one end of the twelfth resistance respectively;

[0052] The other end of the twelfth resistance is connected with the power supply end, the negative electrode of the first diode and the negative electrode of the second diode respectively, and the positive electrode of the second diode is connected with the second pin of the first interface;

[0053] The first pin of the first interface, the positive electrode of the first diode, the other end of the fifth capacitor, the other end of the first capacitor, the second pin of the first control chip and one end of the third capacitor are grounded in common;

[0054] The first pin of the first control chip is connected with the power supply end, the other end of the third capacitor and the second control circuit respectively.

[0055] The first control chip is three-terminal voltage regulator, and the first control chip is 78L05.

[0056] The second control circuit is provided with a second control chip; a first pin of the second control chip is electrically connected with the first control circuit, one end of the second capacitor and one end of the eleventh resistor respectively; the second control circuit is electrically connected with the third control circuit through a second pin, a third pin and a fourth pin of the second control chip;

[0057] A fifth pin of the second control chip is connected with one end of the fourth capacitor and one end of the tenth resistor respectively; an eighth pin of the second control chip is connected with the other end of the second capacitor and the other end of the fourth capacitor respectively.

[0058] The other end of the eleventh resistor is connected with the other end of the tenth resistor and one end of the first thermistor respectively.

[0059] The other end of the fourth capacitor is connected with the other end of the first thermistor.

[0060] The model of the second control chip is PIC12F629.

[0061] The third control circuit comprises a fourth control circuit for light flickering warning when the winch system is in a low temperature state, a fifth control circuit for light flickering warning when the winch system is in a normal temperature state, and a sixth control circuit for light flickering warning when the winch system is in a high temperature state.

[0062] The fourth control circuit, the fifth control circuit and the sixth control circuit are electrically connected with each other.

[0063] The sixth control circuit is provided with at least three light emitting diodes for red light flickering warning.

[0064] The sixth control circuit is provided with a first triode, and the collector of the first triode is sequentially electrically connected with a third light emitting diode, a second light emitting diode and a first light emitting diode.

[0065] The base of the first triode is connected with the collector of a second triode and one end of a first resistor respectively; the other end of the first resistor is connected with the second control circuit.

[0066] The base of the second triode is connected with one end of a third resistor; the other end of the third resistor is connected with the emitter of the first triode and one end of a second resistor respectively.

[0067] The emitter of the second triode is connected with the other end of the second resistor and the ground.

[0068] The fifth control circuit is provided with at least three light emitting diodes for green light flickering warning.

[0069] The third third transistor is provided with a sixth light emitting diode, a fifth light emitting diode and a fourth light emitting diode connected in sequence at the collector of the third third transistor.

[0070] The base of the fourth third transistor is connected with the collector of the fifth third transistor and one end of the seventh resistor, and the other end of the seventh resistor is connected with the emitter of the third third transistor and one end of the fourth resistor.

[0071] The base of the fourth third transistor is connected with the collector of the fifth third transistor and one end of the seventh resistor, and the other end of the seventh resistor is connected with the emitter of the third third transistor and one end of the fourth resistor.

[0072] The emitter of the fourth third transistor is connected with the other end of the fourth resistor and the ground.

[0073] The fourth control circuit is provided with at least three light emitting diodes for warning by blue light flashing.

[0074] The fifth third transistor is provided with a ninth light emitting diode, an eighth light emitting diode and a seventh light emitting diode connected in sequence at the collector of the fifth third transistor.

[0075] The base of the sixth third transistor is connected with the collector of the fifth third transistor and one end of the eighth resistor, and the other end of the eighth resistor is connected with the second control circuit.

[0076] The base of the sixth third transistor is connected with the collector of the fifth third transistor and one end of the eighth resistor, and the other end of the eighth resistor is connected with the second control circuit.

[0077] The emitter of the sixth third transistor is connected with the other end of the sixth resistor and the ground.

[0078] The first third transistor is D882, and the second third transistor is MMBT3904.

[0079] The third third transistor is D882, the fourth third transistor is MMBT3904, the fifth third transistor is D882, and the sixth third transistor is MMBT3904.

[0080] Specifically, in the embodiment of the utility model, a winch temperature indication module is provided, which comprises a voltage stabilizing power supply circuit, a temperature detection circuit and an LED red-green-blue three-color temperature indication circuit.

[0081] The steady voltage power supply circuit comprises a polarity anti-reverse connection circuit (a second diode D2 for preventing power supply reverse connection and reverse pulse voltage), a pulse absorption circuit (a TVS diode D1 for absorbing pulse voltage higher than 30V in the positive direction to prevent circuit damage), a voltage reduction and stabilization circuit (IC1 for reducing voltage higher than 12V to 5V to supply power to the single-chip microcomputer).

[0082] The temperature sensing detection circuit comprises a single-chip microcomputer (U2 for detecting temperature and outputting corresponding pulse width to drive LED indicator) and an NTC thermistor (NTC1 for sensing temperature).

[0083] The LED three-color temperature indication circuit comprises a three-color LED indicator group (LED1-LED9 for displaying color to indicate temperature) and an LED constant current driving circuit (triodes Q1-Q6 for LED constant current driving to prevent LED brightness change caused by power supply voltage change).

[0084] That is to say, the scheme module utilizes the internal AD sensing detection module of the single-chip microcomputer to sense the resistance value of the NTC resistor at different temperatures, obtains the temperature at the position of the NTC, and combines the ratio of red, green and blue colors to drive the three-color LED lamp to display different colors: blue color represents low temperature, green color represents normal temperature, yellow and red colors represent high temperature, the red light flashes to warn the operator to stop the capstan operation when the detected temperature exceeds 95 DEG C, thereby effectively preventing the capstan from being overheated and overloaded and damaged, and improving the safety of the capstan system.

[0085] The utility model discloses a circuit for realizing temperature sensing of the capstan system, a first control circuit for voltage reduction and stabilization control of input voltage and a third control circuit for light flashing warning according to different capstan system temperature ranges are electrically connected to the second control circuit, the resistance value of the NTC resistor at different temperatures is sensed, the temperature at the position of the NTC is obtained, and the ratio of red, green and blue colors is combined to drive the three-color LED lamp to display different colors: blue color represents low temperature, green color represents normal temperature, yellow and red colors represent high temperature, the red light flashes to warn the operator to stop the capstan operation when the detected temperature exceeds 95 DEG C, thereby effectively preventing the capstan from being overheated and overloaded and damaged, and improving the safety of the capstan system.

[0086] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A temperature warning control circuit for application to a winch system, said circuit including a second control circuit for effecting a temperature sensing of the winch system; characterised in that, The second control circuit is electrically connected with the first control circuit for voltage reduction and voltage stabilization control and the third control circuit for light flicker warning according to different winch system temperature ranges.

2. A temperature warning control circuit for use in a winch system according to claim 1, characterised in that, The first control circuit is provided with a first control chip; The third pin of the first control chip is connected with one end of the first capacitor, one end of the fifth capacitor and one end of the twelfth resistor respectively; The other end of the twelfth resistor is connected with the power supply end, the cathode of the first diode and the cathode of the second diode respectively; the anode of the second diode is connected with the second pin of the first interface; The first pin of the first interface, the anode of the first diode, the other end of the fifth capacitor, the other end of the first capacitor, the second pin of the first control chip and one end of the third capacitor are grounded together; The first pin of the first control chip is connected with the power supply end, the other end of the third capacitor and the second control circuit respectively.

3. A temperature warning control circuit for use in a winch system according to claim 2, characterised in that, The first control chip is a three-terminal voltage regulator; The first control chip is a model of 78L05.

4. A temperature warning control circuit for use in a winch system according to claim 1, characterized in that The second control circuit is provided with a second control chip; The first pin of the second control chip is electrically connected with the first control circuit, one end of the second capacitor and one end of the eleventh resistor respectively; the second control circuit is electrically connected with the third control circuit through the second pin, the third pin and the fourth pin of the second control chip; The fifth pin of the second control chip is connected with one end of the fourth capacitor and one end of the tenth resistor respectively; the eighth pin of the second control chip is connected with the other end of the second capacitor together. The other end of the eleventh resistor is connected with the other end of the tenth resistor and one end of the first thermistor respectively; The other end of the fourth capacitor and the other end of the first thermistor are grounded together.

5. A temperature warning control circuit for use in a winch system according to claim 4, characterised in that, The model of the second control chip is PIC12F629.

6. A temperature warning control circuit for use in a winch system according to claim 1, characterized in that The third control circuit comprises a fourth control circuit for light flicker warning when the winch system is in a low temperature state, a fifth control circuit for light flicker warning when the winch system is in a normal temperature state and a sixth control circuit for light flicker warning when the winch system is in a high temperature state; The fourth control circuit, the fifth control circuit and the sixth control circuit are electrically connected with each other.

7. A temperature warning control circuit for use in a winch system according to claim 6, characterised in that, At least three light emitting diodes for red light flicker warning are arranged in the sixth control circuit; A first triode is arranged in the sixth control circuit, and the collector of the first triode is electrically connected with a third light emitting diode, a second light emitting diode and a first light emitting diode in sequence; The base of the first triode is connected with the collector of a second triode and one end of a first resistor respectively; the other end of the first resistor is connected with the second control circuit; The base of the second triode is connected with one end of a third resistor; the other end of the third resistor is connected with the emitter of the first triode and one end of a second resistor respectively; The emitter of the second triode is grounded together with the other end of the second resistor.

8. A temperature warning control circuit for use in a winch system according to claim 6, characterised in that, The fifth control circuit is provided with at least three light emitting diodes for warning by green light flashing; The fifth control circuit is provided with a third transistor, and the collector of the third transistor is sequentially connected with a sixth light emitting diode, a fifth light emitting diode and a fourth light emitting diode in electric property; The base of the third transistor is connected with the collector of a fourth transistor and one end of a fifth resistor respectively; the other end of the fifth resistor is connected with the second control circuit; The base of the fourth transistor is connected with one end of a seventh resistor; the other end of the seventh resistor is connected with the emitter of the third transistor and one end of a fourth resistor respectively; The emitter of the fourth transistor is connected with the other end of the fourth resistor and the ground in common.

9. A temperature warning control circuit for use in a winch system according to claim 6, wherein, The fourth control circuit is provided with at least three light emitting diodes for warning by blue light flashing; The fourth control circuit is provided with a fifth transistor, and the collector of the fifth transistor is sequentially connected with a ninth light emitting diode, an eighth light emitting diode and a seventh light emitting diode in electric property; The base of the fifth transistor is connected with the collector of a sixth transistor and one end of an eighth resistor respectively; the other end of the eighth resistor is connected with the second control circuit; The base of the sixth transistor is connected with one end of a ninth resistor; the other end of the ninth resistor is connected with the emitter of the fifth transistor and one end of a sixth resistor respectively; The emitter of the sixth transistor is connected with the other end of the sixth resistor and the ground in common.

10. A temperature warning control circuit for use in a winch system according to claim 7, wherein, The first transistor is D882; The second transistor is MMBT3904.

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