Truck air conditioner compressor control system and method

Abstract

The invention provides a truck air conditioner compressor control system and method, and the system comprises a voltage stabilization chip, a control switch, an AND gate, a first NOT gate, a second NOT gate, a third NOT gate, and a triode. The control switch, the AND gate, the first NOT gate, the second NOT gate, the third NOT gate and the triode are arranged on a connecting circuit between the output end of the voltage stabilizing chip and the input end of the compressor in series. The output end of the compressor is electrically connected with the input end of the voltage stabilizing chip and the input end of the condenser, an adjusting circuit is arranged between the AND gate and the first NOT gate, and the adjusting circuit is used for adjusting the switching interval duration of the output signal state of the AND gate according to the set temperature of a user. Therefore, the working time of the air conditioner compressor is adjusted. The working duration of the air conditioner compressor can be adjusted according to the set temperature of a user, long-time working of the air conditioner compressor is avoided, energy is saved, and energy consumption is reduced.

Description

Technical Field

[0001] This invention belongs to the field of vehicle air conditioning control technology, specifically relating to a truck air conditioning compressor control system and method. Background Technology

[0002] When the power switch, windshield switch, and AC switch of a car's air conditioning system are turned on, the condenser fan and compressor start working. The refrigerant flowing through the evaporator core in the air box begins to circulate. The low-temperature liquid refrigerant formed by the compressor, condenser, and expansion tube absorbs heat from the surrounding air, thus achieving cooling. Current technology does not allow for convenient adjustment of the air conditioning compressor's operating time based on the user's set temperature, resulting in relatively high energy consumption.

[0003] Therefore, how to design a truck air conditioning compressor control system and method that can better adjust the working time of the air conditioning compressor according to the set temperature has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to provide a truck air conditioning compressor control system and method to solve the above-mentioned technical problems in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A truck air conditioning compressor control system includes a voltage regulator chip, a control switch, an AND gate, a first NOT gate, a second NOT gate, a third NOT gate, and a transistor. The control switch, the AND gate, the first NOT gate, the second NOT gate, the third NOT gate, and the transistor are connected in series in the circuit connecting the output terminal of the voltage regulator chip to the input terminal of the compressor. The output terminal of the compressor is electrically connected to the input terminal of the voltage regulator chip and the input terminal of the condenser, respectively. An adjustment circuit is provided between the AND gate and the first NOT gate. The adjustment circuit is used to adjust the switching interval of the output signal state of the AND gate according to the user's set temperature, thereby adjusting the operating time of the air conditioning compressor.

[0007] Preferably, the adjustment circuit includes a first line disposed between the output terminal of the AND gate and the input terminal of the first NOT gate, and a second line disposed between the lower input terminal of the AND gate and the output terminal of the first NOT gate. A second resistor, a sliding rheostat, and a third resistor are connected in series on the first line. A first resistor and a third capacitor are connected in series on the second line. The sliding end of the sliding rheostat is connected between the first resistor and the third capacitor.

[0008] Preferably, a first diode is disposed between the output terminal of the AND gate and the second resistor.

[0009] Preferably, a second diode is disposed between the third resistor and the first NOT gate.

[0010] Preferably, a fourth resistor is provided between the third NOT gate and the transistor.

[0011] Preferably, a third diode is connected in parallel between the input and output terminals of the compressor.

[0012] Preferably, both the input and output terminals of the voltage regulator chip are provided with grounding wires, and a first capacitor and a second capacitor are respectively provided on the two grounding wires.

[0013] A control method based on the truck air conditioning compressor control system described above, comprising:

[0014] When the user presses the AC switch of the air conditioner, the control switch switches from the ground state to the on state, which makes the voltage regulator chip and the AND gate conduct. In the initial state, the AND gate outputs a low level, the first NOT gate outputs a high level, the third capacitor is charged through the second resistor and the sliding rheostat, the second NOT gate outputs a low level, the third NOT gate outputs a high level, the transistor conducts, and the compressor starts to work.

[0015] When the third capacitor is charged to a voltage greater than the upper limit of the voltage threshold at the lower input terminal of the AND gate, the AND gate outputs a high level, the first NOT gate outputs a low level, the third capacitor discharges through the sliding rheostat and the third resistor, the second NOT gate outputs a high level, the third NOT gate outputs a low level, the transistor is cut off, and the compressor stops working.

[0016] When the third capacitor discharges to a voltage lower than the lower threshold voltage at the lower input of the AND gate, the AND gate outputs a low level, the first NOT gate outputs a high level, the second NOT gate outputs a low level, the third NOT gate outputs a high level, the transistor turns on, and the compressor starts working again, and so on.

[0017] The beneficial effects of this invention are as follows:

[0018] The truck air conditioning compressor control system and method of the present invention, when in use, utilizes an adjustment circuit to effectively adjust the working time of the air conditioning compressor according to the user's set temperature, thereby avoiding the air conditioning compressor from working for a long time, and thus effectively saving energy and reducing energy consumption. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly described below, and the specific embodiments of the present invention will be further described in detail with reference to the drawings, wherein...

[0020] Figure 1 A schematic diagram of a truck air conditioning compressor control system provided in an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the truck air conditioning compressor control system provided in an embodiment of the present invention during use.

[0022] Marked in the attached diagram:

[0023] 11. Voltage regulator chip; 21. AND gate; 31. First NOT gate; 32. Second NOT gate.

[0024] 33. Third NOT gate; 41. Compressor; 51. Condenser; 61. Air conditioner AC switch.

[0025] 62. Blower switch; 63. Blower; 64. Speed ​​control resistor.

[0026] 65. Temperature controller; 66. Pressure switch. Detailed Implementation

[0027] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0028] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0029] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0030] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0031] like Figure 1 and Figure 2As shown, this embodiment of the invention provides a truck air conditioning compressor control system, which includes a voltage regulator chip 11, a control switch S, an AND gate 21, a first NOT gate 31, a second NOT gate 32, a third NOT gate 33, and a transistor Q. The control switch S, the AND gate, the first NOT gate, the second NOT gate, the third NOT gate, and the transistor are connected in series in the connection circuit between the output terminal of the voltage regulator chip 11 and the input terminal of the compressor 41. The output terminal of the compressor 41 is electrically connected to the input terminal of the voltage regulator chip 11 and the input terminal of the condenser 51, respectively. An adjustment circuit is provided between the AND gate 21 and the first NOT gate 31. The adjustment circuit is used to adjust the switching interval of the output signal state of the AND gate 21 according to the user's set temperature, thereby adjusting the working time of the air conditioning compressor.

[0032] The truck air conditioning compressor control system provided in this embodiment of the invention can, in use, adjust the working time of the air conditioning compressor according to the user's set temperature using an adjustment circuit, thereby avoiding the air conditioning compressor from working for a long time, and thus effectively saving energy and reducing energy consumption.

[0033] Furthermore, the adjustment circuit includes a first line between the output terminal of the AND gate 21 and the input terminal of the first NOT gate 31, and a second line between the lower input terminal of the AND gate and the output terminal of the first NOT gate. A second resistor R2, a sliding rheostat RT, and a third resistor R3 are connected in series on the first line. A first resistor R1 and a third capacitor C3 are connected in series on the second line. The sliding end of the sliding rheostat is connected between the first resistor and the third capacitor. With this design, when the user adjusts the set temperature of the car air conditioner, the position of the sliding end of the sliding rheostat RT changes accordingly, causing the resistance connected to the circuit on the sliding rheostat to change. This adjusts the charging and discharging time of the third capacitor C3, thereby adjusting the switching interval of the AND gate's output signal state, and thus adjusting the compressor's operating time. It can be understood that the switching interval of the AND gate's output signal state is the interval between the initial low-level output and the high-level output. The lower the set temperature of the car air conditioner given by the user, the longer the compressor's operating time.

[0034] Specifically, a first diode D1 is disposed between the output terminal of the AND gate and the second resistor; a second diode D2 is disposed between the third resistor and the first NOT gate. This design utilizes the first diode D1 and the second diode D2 to stabilize the voltage.

[0035] Furthermore, a fourth resistor R4 is provided between the third NOT gate and the transistor Q, thereby enabling the fourth resistor to effectively limit the current.

[0036] Preferably, a third diode D3 is connected in parallel between the input and output terminals of the compressor. A voltage regulator chip is used to provide a stable power supply for compressor control; the voltage regulator chip can be a 78L05 chip.

[0037] Specifically, the input and output terminals of the voltage regulator chip are both provided with grounding wires, and a first capacitor C1 and a second capacitor C2 are respectively provided on the two grounding wires.

[0038] This invention also provides a control method based on the truck air conditioning compressor control system described above, comprising:

[0039] When the user presses the AC switch of the air conditioner, the control switch S switches from the ground state to the on state, which makes the voltage regulator chip and the AND gate conduct. In the initial state, the AND gate 21 outputs a low level, the first NOT gate 31 outputs a high level, the third capacitor C3 is charged through the second resistor R2 and the sliding rheostat RT, the second NOT gate 32 outputs a low level, the third NOT gate 33 outputs a high level, the transistor Q conducts, and the compressor starts to work.

[0040] When the third capacitor C3 is charged to a voltage greater than the upper limit of the voltage threshold at the lower input terminal of AND gate 21, the AND gate outputs a high level, the first NOT gate 31 outputs a low level, the third capacitor C3 discharges through the sliding rheostat RT and the third resistor R3, the second NOT gate 32 outputs a high level, the third NOT gate 33 outputs a low level, the transistor Q is cut off, and the compressor stops working.

[0041] When the third capacitor C3 discharges to a voltage lower than the lower threshold voltage of the input terminal of the AND gate, the AND gate outputs a low level, the first NOT gate 31 outputs a high level, the second NOT gate 32 outputs a low level, the third NOT gate 33 outputs a high level, the transistor Q turns on, and the compressor starts working again, and so on.

[0042] While specific embodiments of the invention have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of the invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A truck air conditioning compressor control system, characterized in that, It includes a voltage regulator chip, a control switch, an AND gate, a first NOT gate, a second NOT gate, a third NOT gate, and a transistor. The control switch, the AND gate, the first NOT gate, the second NOT gate, the third NOT gate, and the transistor are connected in series in the connection circuit between the output terminal of the voltage regulator chip and the input terminal of the compressor. The output terminal of the compressor is electrically connected to the input terminal of the voltage regulator chip and the input terminal of the condenser, respectively. An adjustment circuit is provided between the AND gate and the first NOT gate. The adjustment circuit is used to adjust the switching interval of the output signal state of the AND gate according to the user's set temperature, thereby adjusting the working time of the air conditioner compressor.

2. The truck air conditioning compressor control system according to claim 1, characterized in that, The adjustment circuit includes a first line disposed between the output terminal of the AND gate and the input terminal of the first NOT gate, and a second line disposed between the lower input terminal of the AND gate and the output terminal of the first NOT gate. A second resistor, a sliding rheostat, and a third resistor are connected in series on the first line. A first resistor and a third capacitor are connected in series on the second line. The sliding end of the sliding rheostat is connected between the first resistor and the third capacitor.

3. The truck air conditioning compressor control system according to claim 2, characterized in that, A first diode is disposed between the output terminal of the AND gate and the second resistor.

4. The truck air conditioning compressor control system according to claim 3, characterized in that, A second diode is disposed between the third resistor and the first NOT gate.

5. The truck air conditioning compressor control system according to claim 1, characterized in that, A fourth resistor is provided between the third NOT gate and the transistor.

6. The truck air conditioning compressor control system according to claim 1, characterized in that, A third diode is connected in parallel between the input and output terminals of the compressor.

7. The truck air conditioning compressor control system according to claim 1, characterized in that, The voltage regulator chip has grounding wires at both its input and output terminals, and a first capacitor and a second capacitor are respectively installed on the two grounding wires.

8. A control method based on the truck air conditioning compressor control system of claim 1, characterized in that, It includes: When the user presses the AC switch of the air conditioner, the control switch switches from the ground state to the on state, which makes the voltage regulator chip and the AND gate conduct. In the initial state, the AND gate outputs a low level, the first NOT gate outputs a high level, the third capacitor is charged through the second resistor and the sliding rheostat, the second NOT gate outputs a low level, the third NOT gate outputs a high level, the transistor conducts, and the compressor starts to work. When the third capacitor is charged to a voltage greater than the upper limit of the voltage threshold at the lower input terminal of the AND gate, the AND gate outputs a high level, the first NOT gate outputs a low level, the third capacitor discharges through the sliding rheostat and the third resistor, the second NOT gate outputs a high level, the third NOT gate outputs a low level, the transistor is cut off, and the compressor stops working. When the third capacitor discharges to a voltage lower than the lower threshold voltage at the lower input of the AND gate, the AND gate outputs a low level, the first NOT gate outputs a high level, the second NOT gate outputs a low level, the third NOT gate outputs a high level, the transistor turns on, and the compressor starts working again, and so on.

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