Exhaust control device for radiator

Abstract

The utility model relates to the technical field of engineering machinery vehicles, and discloses an exhaust control device for a radiator, which comprises a mounting rack, a radiating support fixed on the mounting rack, a control support fixed in the mounting rack, a driving support fixed on the top of the mounting rack, the radiator fixed on the radiating support, and a control support fixed on the control support. The radiator is fixedly provided with a circulating water pump, the control support is fixedly provided with a motor controller, the driving support is fixedly provided with a motor, the output end of the motor is fixedly provided with a speed reducer, the circulating water pump is fixedly provided with an automatic exhaust electromagnetic valve, and the motor controller is fixedly provided with a pressure sensor. According to the exhaust control device for the radiator, when a motor and a controller installed on a mixer truck emit heat, a cooling circulation system of the motor and the controller installed on the mixer truck can be monitored, automatic exhaust is completed when circulation is not smooth due to gas in a cooling pipe, it is guaranteed that cooling liquid in the system circulates smoothly, then the heat dissipation and cooling effects are achieved, and the requirement for normal operation of equipment is met.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery and vehicle technology, specifically to an exhaust control device for a radiator. Background Technology

[0002] New energy electric concrete mixer trucks are widely used in construction engineering, road and bridge construction and other fields. The whole vehicle consists of a mixing tank and a truck chassis. The mixing tank mainly includes a mixing tank, a sub-beam frame, a tank drive control system and a corresponding cooling circulation system. The cooling circulation system is an important component for cooling the drive control system. The operation of the electric mixer truck tank is completed by a servo controller driving a motor. During long-term operation, the controller and motor will generate a lot of heat. Without a cooling system, the drive and motor will not work properly due to excessive temperature, or even burn out the equipment. The commonly used cooling system is a liquid cooling circulation method, in which the coolant continuously circulates between the servo controller and motor and the external radiator, carrying away the large amount of heat generated by the controller and motor. The cooling effect is achieved through the action of heat sinks and cooling fans. The stable operation of the cooling circulation system is the basis for ensuring the normal operation of the mixer truck tank.

[0003] Currently, the superstructure cooling circulation system mainly uses a circulating water pump to drive the coolant circulation to cool the motor controller and motor. This system is simple in structure, economical and durable, and is independent of the superstructure control system, making it easy to maintain. It can continuously cool the superstructure electrical control system. However, due to the characteristics of the circulating pump, the cooling circulation system still has some problems that can easily lead to poor circulation, thus affecting the system's heat dissipation efficiency. The main problems are as follows:

[0004] 1. During installation, there may be trapped gas in the radiator circulation pipes that cannot be discharged. In actual use of the vehicle, gas may also enter the circulation pipes. Different layouts of the radiator reservoir and pipes, bumps during driving, or high temperatures of the coolant may all cause gas to be generated in the pipes. Once too much gas accumulates at the impeller of the circulating water pump, it will cause the water pump to run dry or stop. As a result, the coolant cannot circulate normally and cannot meet the cooling and heat dissipation requirements of the upper structure drive system.

[0005] 2. All the gas generated in the upper-mount circulating heat dissipation system piping must be discharged to avoid affecting the system's cooling effect. The traditional method of venting is to manually check and vent the gas periodically. This method is prone to coolant leakage and waste, requires high skill from operators, is difficult to operate, and is difficult to detect and deal with in a timely manner. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides an exhaust control device for radiators, which solves the problem that the cooling circulation system on new energy concrete mixer trucks in engineering machinery vehicles cannot automatically exhaust the gas from the radiator circulation pipes.

[0008] (II) Technical Solution

[0009] To achieve the goal of automatically discharging gas from the radiator's circulating pipes using a cooling and heat dissipation system installed on the aforementioned construction machinery vehicles, this utility model provides the following technical solution: a radiator exhaust control device, comprising a mounting frame, a heat dissipation bracket fixed to the left side of the mounting frame, a control bracket fixed to the inner side of the mounting frame, a drive bracket fixed to the top of the mounting frame, a radiator fixed to the heat dissipation bracket, a circulating water pump fixed to the side of the radiator, a motor controller fixed to the control bracket, a motor fixed to the drive bracket, a reducer fixed to the output end of the motor, an automatic exhaust solenoid valve fixed to the circulating water pump, and a pressure sensor fixed to the motor controller;

[0010] A coolant output pipe is fixed between the radiator and the circulating water pump; a superstructure controller cooling pipe is fixed between the circulating water pump and the motor controller; a motor cooling pipe is fixed between the motor controller and the motor; a coolant return pipe is fixed between the motor and the radiator; an auxiliary water tank is fixed to the top of the radiator; an exhaust pipe is fixed between the auxiliary water tank and the automatic exhaust solenoid valve; and a recovery pipe is fixed between the auxiliary water tank and the radiator.

[0011] Preferably, the automatic exhaust solenoid valve is installed and fixed at the outlet of the circulating water pump.

[0012] Preferably, the pressure sensor is installed and fixed at the coolant inlet of the motor controller.

[0013] Preferably, the top of the auxiliary water tank is provided with an exhaust valve, and the auxiliary water tank is connected to the radiator through a recovery pipe.

[0014] Preferably, the automatic exhaust solenoid valve is connected in series with the pressure sensor.

[0015] Preferably, the circulating water pump and the motor controller are connected via a coolant output pipe.

[0016] Preferably, the motor controller and the motor are connected via a motor cooling pipe.

[0017] Preferably, the coolant output pipe, the upper controller cooling pipe, the coolant return pipe, and the motor cooling pipe form a circulation pipeline.

[0018] Compared with the prior art, the present invention provides an exhaust control device for radiators, which has the following advantages:

[0019] 1. The exhaust control device for this radiator can be installed without altering the original equipment structure. The overall design is reasonable, the operation is stable and reliable, the system cost is low, the installation method and location are simple and flexible, and it is easy to operate and maintain. It has good practicality for new energy electric concrete mixer trucks.

[0020] 2. The exhaust control device of this radiator realizes the automatic exhaust function of the upper cooling circulation heat dissipation system through a simple design. It has a simple structure, is durable and highly practical, reduces human intervention by operators, and greatly reduces the failure rate of the equipment. It has a positive effect on improving the overall system efficiency and protecting the equipment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram illustrating the structural principle of this utility model;

[0023] Figure 3 This is a schematic diagram illustrating the working process of the automatic exhaust solenoid valve and pressure sensor connected in series in this utility model.

[0024] The components include: 1. Mounting frame; 2. Heat dissipation bracket; 3. Control bracket; 4. Drive bracket; 5. Radiator; 6. Circulating water pump; 7. Motor controller; 8. Motor; 9. Reducer; 10. Automatic exhaust solenoid valve; 11. Pressure sensor; 12. Coolant output pipe; 13. Cooling pipe for upper controller; 14. Coolant return pipe; 15. Motor cooling pipe; 16. Auxiliary water tank; 17. Exhaust pipe; 18. Recovery pipe. Detailed Implementation

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0026] Please see Figure 1-3 This utility model provides an exhaust control device for a radiator, including a mounting frame 1, a heat dissipation bracket 2 fixed on the left side of the mounting frame 1, a control bracket 3 fixed on the inner side of the mounting frame 1, a drive bracket 4 fixed on the top of the mounting frame 1, a radiator 5 fixed on the heat dissipation bracket 2, a circulating water pump 6 fixed on the side of the radiator 5, a motor controller 7 fixed on the control bracket 3, a motor 8 fixed on the drive bracket 4, a reducer 9 fixed at the output end of the motor 8, an automatic exhaust solenoid valve 10 fixed on the circulating water pump 6, and a pressure sensor 11 fixed on the motor controller 7.

[0027] A coolant output pipe 12 is fixed between the radiator 5 and the circulating water pump 6. A superstructure controller cooling pipe 13 is fixed between the circulating water pump 6 and the motor controller 7. A motor cooling pipe 15 is fixed between the motor controller 7 and the motor 8. A coolant return pipe 14 is fixed between the motor 8 and the radiator 5. An auxiliary water tank 16 is fixed on the top of the radiator 5. An exhaust pipe 17 is fixed between the auxiliary water tank 16 and the automatic exhaust solenoid valve 10. A recovery pipe 18 is fixed between the auxiliary water tank 16 and the radiator 5. The device can be installed and fixed on the mixing truck's loading body through the mounting frame 1. When the mixing truck's loading body drive motor and controller body work, the heat generated is large. The coolant first flows out from the radiator 5. The radiator 5 can cool and reduce the temperature of the mixing truck's loading body drive motor and controller body through the circulation pipe formed by the coolant output pipe 12, the superstructure controller cooling pipe 13, the coolant return pipe 14, and the motor cooling pipe 15.

[0028] Furthermore, the automatic air venting solenoid valve 10 is installed and fixed at the outlet of the circulating water pump 6. The model of the automatic air venting solenoid valve 10 is 2W-160-15 (DC24V), which is conducive to quickly venting the air in the impeller position of the circulating pump.

[0029] Furthermore, the pressure sensor 11 is installed and fixed at the coolant inlet of the motor controller 7. The pressure sensor 11 is model KY10-012, which can more accurately and stably reflect the current pressure of the circulating water circuit. The coolant flows out of the motor controller 7, through the cooling pipe of the stirring tank motor 8, and back to the radiator 5.

[0030] Furthermore, an air vent valve is provided on the top of the auxiliary water tank 16. The auxiliary water tank 16 is connected to the radiator 5 through a recovery pipe 18. The air vent valve can automatically discharge the air inside the auxiliary water tank 16, and the recovery pipe 18 can re-transport the coolant inside the auxiliary water tank 16 back to the radiator 5.

[0031] Furthermore, the automatic exhaust solenoid valve 10 is connected in series with the pressure sensor 11. The automatic exhaust function is completed by the pressure sensor 11 automatically controlling the opening or closing of the automatic exhaust solenoid valve 10 according to the pressure change in the circulation pipeline and the set value.

[0032] Furthermore, the circulating water pump 6 and the motor controller 7 are connected by a coolant output pipe 12, which allows the circulating water pump 6 to deliver coolant to the motor controller 7 through the coolant output pipe 12.

[0033] Furthermore, the motor controller 7 and the motor 8 are connected by the motor cooling pipe 15, which allows the motor controller 7 to deliver coolant to the motor 8 through the motor cooling pipe 15, and the coolant after cooling the motor 8 is returned to the radiator 5 through the coolant return pipe 14.

[0034] Furthermore, the coolant output pipe 12, the upper controller cooling pipe 13, the coolant return pipe 14, and the motor cooling pipe 15 form a circulation pipeline, which facilitates the circulation of coolant and provides circulating cooling for the motor 8.

[0035] In use, the device can be mounted and fixed on the loading body of the mixer truck using the mounting frame 1. When the drive motor and controller of the loading body of the mixer truck are working, the heat generated is relatively large. The coolant first flows out naturally from the radiator 5, and goes directly to the circulating water pump 6 through the coolant output pipe 12. After being pressurized by the circulating water pump 6, it is first delivered to the cooling pipe 13 of the upper controller, and then enters the motor controller 7. From the motor controller 7, it is output into the motor cooling pipe 15, and then into the motor 8. Finally, it flows back from the outlet of the motor 8 to the water tank of the radiator 5, completing the circulating cooling process. When the pressure sensor 11 detects that the pressure in the circulating pipe formed by the coolant output pipe 12, the upper controller cooling pipe 13, the coolant return pipe 14, and the motor cooling pipe 15 is too low, it indicates that the coolant circulation is not smooth. It can be judged that there is too much air in the circulating water pump 6, causing the circulating pump to run dry or stop, and unable to complete the pressurized circulation and delivery of coolant. Air purging is required. It can be determined that excessive gas accumulation at the impeller of the circulating pump will cause the circulating water pump 6 to run dry. In this case, simply purging the air from the impeller of the circulating water pump 6 will restore the normal circulation of the coolant. Therefore, an automatic air venting solenoid valve 10 is designed and installed close to the outlet of the circulating water pump 6. A pressure sensor 11 is also designed and installed at the front end of the circulating pipeline entering the motor controller 7 to detect the pressure in the circulating pipeline. Once the pressure sensor 11 detects that the pressure in the circulating pipeline is lower than the set value, the pressure sensor 11 switch automatically opens the automatic air venting solenoid valve 10 to achieve the automatic air venting function and ensure the stable operation of the cooling circulation system. In order to prevent a small amount of coolant from being discharged while the automatic air venting solenoid valve 10 is venting air, causing waste, the outlet of the automatic air venting solenoid valve 10 needs to be connected to the auxiliary water tank 16 at the top of the radiator 5 with an exhaust pipe 17. The air inside the auxiliary water tank 16 is discharged by the exhaust valve located at the top, and the coolant inside the auxiliary water tank 16 is returned to the radiator 5 by the recovery pipe 18 to achieve the recycling of the coolant.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An exhaust control device for a heat sink comprising a mounting rack (1), characterized in that: The left side of the mounting rack (1) is fixed with a heat dissipation support (2), the inner side of the mounting rack (1) is fixed with a control support (3), the top of the mounting rack (1) is fixed with a driving support (4), the heat dissipation support (2) is fixed with a radiator (5), the side of the radiator (5) is fixed with a circulating water pump (6), the control support (3) is fixed with a motor controller (7), the driving support (4) is fixed with a motor (8), the output end of the motor (8) is fixed with a speed reducer (9), the circulating water pump (6) is fixed with an automatic exhaust solenoid valve (10), the motor controller (7) is fixed with a pressure sensor (11); The radiator (5) and the circulating water pump (6) are fixed with a cooling liquid output pipe (12), the circulating water pump (6) and the motor controller (7) are fixed with an upper-mounted controller cooling pipe (13), the motor controller (7) and the motor (8) are fixed with a motor cooling pipe (15), the motor (8) and the radiator (5) are fixed with a cooling liquid return pipe (14), the top of the radiator (5) is fixed with a secondary water tank (16), the secondary water tank (16) and the automatic exhaust solenoid valve (10) are fixed with an exhaust pipe (17), the secondary water tank (16) and the radiator (5) are fixed with a recovery pipe (18).

2. The exhaust control device for a heat sink according to claim 1, characterized by: The automatic exhaust solenoid valve (10) is installed and fixed at the outlet of the circulating water pump (6).

3. The exhaust control device for a heat sink according to claim 1, characterized by: The pressure sensor (11) is installed and fixed at the cooling liquid inlet of the motor controller (7).

4. The exhaust control device for a heat sink according to claim 1, characterized by: The top of the secondary water tank (16) is provided with an exhaust valve, and the secondary water tank (16) and the radiator (5) are connected through the recovery pipe (18).

5. The exhaust control device for a heat sink according to claim 1, characterized by: The automatic exhaust solenoid valve (10) and the pressure sensor (11) are connected in series.

6. The exhaust control device for a heat sink according to claim 1, characterized by: The circulating water pump (6) and the motor controller (7) are connected through the cooling liquid output pipe (12).

7. The exhaust control device for a heat sink according to claim 1, characterized by: The motor controller (7) and the motor (8) are connected through the motor cooling pipe (15).

8. The exhaust control device for a heat sink according to claim 1, characterized by: The cooling liquid output pipe (12), the upper-mounted controller cooling pipe (13), the cooling liquid return pipe (14) and the motor cooling pipe (15) form a circulating pipe.

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