TW200533028A - Method for protecting air-conditioner components of bus - Google Patents

Abstract

A method for protecting air-conditioner components of a bus comprises: connecting the main power of a bus with a voltage detection circuit capable of detecting the output voltage of a main power, and capable of transmitting the detected signals to an operation processing circuit to perform an operation processing, in which the operation processing circuit transmits a processing signal to a control circuit when the output voltage is lower than a normal voltage 24V to a specified low voltage value in order to cut off the power supply to the main power supply circuit of an electromagnetic clutch for connecting the engine and the compressor in an air conditioner system, so that it won't happen that the transmission plate of the electromagnetic clutch and the clutch press plate can not engage with each other due to an insufficient voltage and generates high heat due to the occurrence of relative friction. The production of high heat may thermally damage the electromagnetic coil on the transmission plate. This will cause the electromagnetic clutch to be damaged. Thus, this component can protect the air conditioner components, such as electromagnetic clutch, etc.

Description

200533028

[Technical field to which the invention belongs] The present invention relates to an air-conditioning unit, and particularly to a protection method that utilizes a Pakistani arithmetic processing circuit to prevent damage. The protection method is related, more specifically, the main power supply of the air conditioner is connected to the air conditioner due to insufficient power supply [previous technology]; the main power supply of general buses mainly comes from the battery installed on the vehicle body, although the engine When starting, it also drives the generator to generate electricity at the same time. The battery's main power can be supplemented by the battery. The main power of the battery can be used to provide the power required in the car: multiple equipment or parts. Provide = ί ίElectricity of various equipments, such as electric power to connect the engine and the compressor 3 amps, cooling motors and wind drum motors installed inside the evaporator, etc., so that the air-conditioning system of the bus can operate normally . [Summary of the Invention] Maldang bus's battery or generator is damaged, causing the main battery of the battery to be reduced to 24V to a low voltage value (usually 22 · 7V), which will cause the electromagnetic coil of the electromagnetic clutch to generate The magnetic attraction force is reduced, and the transmission disk and clutch pressure plate cannot be tightly engaged with each other, thereby slipping the output value. The rotating friction will cause the transmission disk to generate high heat, and it is dedicated to the electromagnetic coil on the transmission disk. The electromagnetic coil is burned and damaged, and at the same time, the shrinking machine cannot be operated. Similarly, when the main power supply voltage of the cooling motor is insufficient, the speed of the cooling motor will also be slowed down, and the cooling effect will be poor.

Page 5 200533028 V. Description of the invention (2), which in turn damages the refrigerant pressure effect; often it will indirectly cause replacement and maintenance costs to 'bust and trouble the bus, so if the piece is damaged, there is indeed a main power source of the present invention's tip. T It can be used to understand that when the power is output, the computing unit cuts off the supply circuit of the air-conditioning system so that the supply can effectively increase the holding pressure because the voltage is not on the drive plate. The cost of supplying power is not high, and how to avoid it for a long time depends on its necessity. A bus air conditioner can be connected to detect the mains electricity causing the compressor phase M ^ General bus electricity is cold "Many * whistles or generators are damaged 'The parts are damaged at the same time, not only two forms :: Item is longer The replacement of the maintenance time caused a great loss to the industry. The air-conditioning structure's detection signal transmission voltage caused by the insufficient power supply was insufficient, and the connection would be disconnected, making the electromagnetic foot unable to bite. The air conditioner parts are sent to a constant voltage transmission, and the engine and pressure clutch are opposed to each other. This causes the method. The source of the burned expected parts is operated at 24V to handle the transmission friction of the shrinking machine. Protection method, the circuit of the voltage value goes to the next predetermined number to a controlled electromagnetic clutch plate and the clutch generates heat, the damage of the coupler is avoided due to the main situation. It is a low voltage value control circuit at the operation of the bar voltage detection line. The main electrical pressure plate of the device will not be burned further. Power supply, so, [Embodiment] First, please refer to the protection method Each _ 'The present invention provides an air conditioner bus 0 a, and substantially comprises providing a bus voltage detecting circuit 1, the main power supply battery 20 are connected to each other, may be used to

Page 6 200533028 丨 丨 丨 丨 11 1,1 V. Description of the invention (3) Detecting the battery 2 〇 Input of main power ^ 'a is connected with an arithmetic processing, and the electricity repeatedly detects the circuit i 〇 " The main power wheel output voltage is worth ^, so that the electrical measurement circuit i 〇 processing circuit 1 0 b to carry out the processing of the electronic circuit measurement signal is transmitted to the computing system and then connected with a control circuit T two: f the calculation processing circuit if in due time Transmission—processing signal to control circuit f, processing circuit 1◦b to 1 ° C is the main power supply circuit of electromagnetic clutch 5 0 connected to the main power supply circuit connecting the engine 3 0 and the compressor electrical circuit. :: : When the electromagnetic clutch 5 is cut off I. Battery 2 〇 The main power source 浐 medium voltage primary test circuit 1 0 has just arrived (the low power value of this embodiment is 2; .7v) The waiting time in this embodiment is 5 seconds), if ^

When the voltage value is still lower than the predetermined low voltage value after the waiting time of 15 seconds, the calculation circuit 1 〇b _ will send a processing signal to the control circuit i 〇 / transport, so that the main power circuit of the electromagnetic clutch 5 〇 Among them, because the main power supply voltage of general buses is not very stable, the waiting time of 15 seconds upstream can be used to prevent misjudgment. ; Secondly, 'the control circuit 10c of the present invention can also be connected to the heat-dissipating motor 60 and the evaporator 7 in the air-conditioning system at the same time, so that the supply of the heat-dissipating motor 60 and the evaporator 70 The main circuit supply circuit is able to cut off the battery 2 when the voltage detection circuit i 〇a detects the main power output voltage is lower than the pre-e and low voltage value; by this, the main load of the bus air conditioning system can be The mechanical parts, that is, the above-mentioned electromagnetic clutch 5 〇, heat-dissipating motor 6 〇 and air drum motor 7 1 are powered off, and the battery 2 can be avoided

Page 7 200533028 V. Description of the invention (4) The remaining power of 0 is fully displayed, the panel 80, and the detected power indicator 8 1 are displayed, which can be used as a supply effect. Participate in the bus main battery to the battery 20 value, and at the low voltage value of 15 to the control circuit 0 or the wind and horses, this can prevent the lack of damage caused by high heat burnout with a longer use of a detected low electricity voltage Value, when it is normal, that is, the normal running state part is exhausted. The calculation and processing of the present invention are performed on the indicator panel 80, the bottle 20 main power source is flashed and lighted at low power, or to achieve reminders and notifications to make one step understand the use of the present invention. For details, please refer to the first figure. After the power source of the present invention is turned on, the output voltage of the main power source is turned on and the waiting time elapses. Then, the nasal processing circuit 1 1 oc is used to bring the electromagnetic power to the main power source of 71. The supply-related air-conditioning components will not be damaged, especially to prevent the electromagnetic case from being damaged, so you can borrow the life; the output of the main power supply of the bottle 20 that requires special explanation will be immediately released during the waiting time of 15 seconds, so In order to prevent misjudgement of the road, 1 Ob can be connected with another indicator to set the fault indicator 8 1, so that when the pressure is on, the effect of the user can be displayed by means of fault and alarm sound. The technical means and expectations are described in terms of narration. It is believed that when this can be done, the following is described: The voltage detection circuit 10a can start to detect, and when its detection is lower than the preset 2 2 · 7 V low Voltage If the output voltage value is still lower than the preset 0 b, a processing signal will be transmitted to the clutch 50 or the cooling motor 6. The circuit will be turned off (OFF). The protection of the air-conditioning component is achieved, so that 'when the voltage value of the voltage detection circuit 10 is lower than the preset 22.7V, once the output voltage value is restored', the air-conditioning system can maintain a positive situation; in addition, when the page 8 of this issue 200533028

Ming control circuit 10 C will be electromagnetic D. Cut off, causing the battery 20 negative clothing to handle the power supply of air conditioning parts such as 50. These air conditioning parts will still be maintained; out of service: = When the voltage value returns to normal, 'Turn off the power of the indicator panel 80 (〇 FF, sad five 'At this time, the user must turn off the device (%) and then turn it on, so that these air-conditioning components can resume normal operation. In this way, the main purpose is to clearly inform the user of the existence of P. 'In order to facilitate the follow-up maintenance and treatment. The above-mentioned indications' The invention has its excellent progress in the similar products, and at the same time, the domestic and foreign technical information on this type of structure is searched. Literature ^ It was found that the same structure existed first. Therefore, the present invention already has the Xinming patent elements and applied for it according to law. However, the above is only one of the preferred feasible embodiments of the present invention. Equivalent structural changes made by applying the description of the present invention and the scope of patent application should be included in the scope of patent of the present invention.

Page 9 200533028_ Brief description of the drawings [Simple description of the drawings] The first diagram is a schematic block diagram of the connection state of the arithmetic processing circuit of the present invention. [Description of main component symbols] 1 0 a Voltage detection circuit 1 Ob Operation processing circuit 1 0 c Control circuit 2 0 Battery 3 0 Engine 4 0 Compressor 5 0 Electromagnetic clutch 6 0 Radiator motor 7 0 Evaporator 7 1 Air drum motor 8 0 Indication panel 8 1 Fault indicator

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Claims (1)

1. A method for protecting a bus air conditioner, which is connected with a voltage detection circuit to the main power supply of the bus to detect the output electric C value of the main power supply and transmit a detection signal to an arithmetic processing circuit for calculation. Processing, when the output voltage value is lower than a predetermined low voltage value below the normal voltage of 24V, the arithmetic processing circuit will send a processing signal to a control circuit, so as to connect the electromagnetic clutch between the engine and the compressor in the air-conditioning system. The main power supply circuit is cut off, so that the transmission plate of the electromagnetic clutch and the clutch platen will not cause high heat due to relative friction due to insufficient voltage, which will burn the electromagnetic coil located on the transmission plate, causing damage to the electromagnetic clutch. 2. The method for supporting a bus air-conditioning unit as described in item 1 of the scope of patent application, wherein the predetermined low voltage value is 22.7V. Warranty of mechanical parts 3. The warranty of bus air-conditioning parts as described in item i of the scope of patent application, wherein when the detected output voltage value is lower than the normal voltage of 24v, horse: when one member sets a low threshold voltage value The '㉟ control circuit can also cut off the main power supply circuit of the internal air drum motor for heat dissipation in the air-conditioning system. ‘,,, and protector ί The bus air-conditioning unit described in Item 1 Generator repair; electricity ;. It is a battery, and it can be connected through the bus air conditioner as described in item F and installed on the bus to detect it. Low] 7 Indicator light on the indication panel 6. If the scope of the patent application is "Sad: The staff does not point at the light. Protective method," Don't detect the == the guarantee of the bus air-conditioning parts-predetermined low When the voltage value is low, the second electrical value will be lower than the normal voltage of 24V and wait for a predetermined time. If the output voltage is 200533028_ VI. When the voltage range of the patent application is still lower than the predetermined low voltage value after the waiting time, the arithmetic processing circuit will The processing signal will be sent to the control circuit to prevent misjudgment. 7. The protection method for bus air conditioners as described in item 1 of the scope of patent application, wherein the waiting time is 15 seconds. Page 12