Fuel cell electric control three-way valve driving device

Abstract

The utility model discloses a fuel cell electric control three-way valve driving device which comprises a motor (1), an output shaft of the motor (1) is connected with an input end of a gear box (2), a driving flat shaft (3) is arranged at the output end of the gear box (2) and matched with a flat hole formed in a three-way valve driving shaft, the gear box (2) is further connected with a driving module (4), and the driving module (4) is connected with the gear box (2). The driving module (4) is provided with a female header (5), the driving module (4) is fixedly connected with the control module (7) through a bolt (6), the control module (7) is provided with a pin header (8) matched with the female header (5), the driving module (4) is further provided with an angle sensor (9), and the top end of the driving flat shaft (3) is a verification end 10. The verification end (10) protrudes out of a shell of the gearbox (2) and penetrates through a via hole formed in the driving module (4), and the angle sensor (9) is matched with the verification end (10).

Description

Technical Field

[0001] The utility model relates to the field of hydrogen fuel cells, in particular to a fuel cell electric-controlled three-way valve driving device. Background Art

[0002] Thermal management of fuel cells is an important part of ensuring efficient operation of the fuel cell system. In the coolant circulation system of the fuel cell, a small circulation is used in the initial stage of startup to allow the fuel cell to heat up quickly and enter a stable working state as soon as possible. After entering the stable working state, it is necessary to switch to a large circulation to avoid affecting the working state of the fuel cell due to overheating.

[0003] That is to say, the fuel cell coolant circulation system needs to be switched between the large circulation and the small circulation, and this switching action is achieved through a three-way valve.

[0004] At present, the three-way valve used in the fuel cell coolant circulation system is a wax-driven three-way valve, which mainly relies on the physical properties of the material to passively switch between large and small cycles, and cannot accurately adjust the large and small cycles to achieve smooth control of the working temperature;

[0005] At the same time, the existing three-way valve driving device is also unable to measure the current opening of the large and small cycles, thereby confirming the flow status of the large and small cycles, and is even more unable to diagnose the thermal management system through the flow status.

[0006] Therefore, a method or device capable of solving the above problems is now needed. Summary of the invention

[0007] The utility model aims to solve the above-mentioned deficiencies in the prior art and proposes a driving device which has a simple structure, ingenious design, reasonable layout, can detect the opening and closing state and condition of a three-way valve in real time, and can realize automatic control of the three-way valve.

[0008] The technical solution of the utility model is: a fuel cell electric-controlled three-way valve driving device, characterized in that: the device comprises a motor 1, the output shaft of the motor 1 is connected to the input end of a gear box 2, a driving flat shaft 3 is arranged at the output end of the gear box 2, and the driving flat shaft 3 matches the flat hole opened on the driving shaft of the three-way valve.

[0009] The gear box 2 is also connected to a drive module 4, on which a female connector 5 is provided. The drive module 4 is fixedly connected to a control module 7 via bolts 6, and the control module 7 is provided with a pin connector 8 matching the female connector 5.

[0010] An angle sensor 9 is also provided on the driving module 4. The top end of the driving flat shaft 3 is a checking end 10. The checking end 10 protrudes from the housing of the gear box 2 and passes through a through hole provided on the driving module 4. The angle sensor 9 and the checking end 10 match each other.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] The fuel cell electric-controlled three-way valve driving device of this structural form has a simple structure, ingenious design, and reasonable layout. A special structure is designed to solve the problems existing in the traditional three-way valve driving device during use. It uses a gear box to change the torque output of the motor, drive the driving flat shaft 3 to rotate, and then drive the driving shaft of the three-way valve to move, thereby realizing the automatic opening or closing of the three-way valve; and it integrates the control module and the driving module together, which can effectively reduce external interference, control the occupied space, and use the angle sensor to detect the rotation angle of the driving shaft, so as to know the current working state of the three-way valve. And this driving device has a simple manufacturing process and low manufacturing cost, so it can be said that it has many advantages, and is particularly suitable for promotion and application in this field, and its market prospects are very broad. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0014] Figure 2 It is a structural schematic diagram of a middle driving module in an embodiment of the utility model. DETAILED DESCRIPTION

[0015] The specific implementation of the present utility model will be described below in conjunction with the accompanying drawings. Figure 1 , Figure 2 As shown: A fuel cell electric-controlled three-way valve driving device, characterized in that: the device comprises a motor 1, the output shaft of the motor 1 is connected to the input end of a gear box 2, a driving flat shaft 3 is provided at the output end of the gear box 2, and the driving flat shaft 3 matches the flat hole opened on the three-way valve driving shaft.

[0016] The gear box 2 is also connected to a drive module 4, on which a female connector 5 is provided. The drive module 4 is fixedly connected to a control module 7 via bolts 6, and the control module 7 is provided with a pin connector 8 matching the female connector 5.

[0017] An angle sensor 9 is also provided on the driving module 4. The top end of the driving flat shaft 3 is a checking end 10. The checking end 10 protrudes from the housing of the gear box 2 and passes through a through hole provided on the driving module 4. The angle sensor 9 and the checking end 10 match each other.

[0018] The working process of the fuel cell electric-controlled three-way valve driving device of the utility model embodiment is as follows: the driving device is installed on the three-way valve in the fuel cell coolant circulation system, specifically, the driving flat shaft 3 is inserted into the flat hole opened on the driving shaft of the three-way valve,

[0019] When the three-way valve needs to be opened or closed, a signal is sent to the control module 7, and the control module 7 sends a signal to the drive module 4, and the drive module 4 controls the motor 1 to work.

[0020] When the motor 1 is working, the torque is transmitted to the driving flat shaft 3 through the gear transmission pair in the gear box 2, and the driving flat shaft 3 starts to rotate, and drives the driving shaft of the three-way valve to rotate together, thereby controlling the three-way valve to open or close;

[0021] During operation, when the driving flat shaft 3 rotates, the inspection end 10 at its top will also rotate accordingly. That is to say, the rotation parameter (rotation angle) of the inspection end detected by the angle sensor 9 is the rotation parameter of the driving flat shaft 3 and the three-way valve driving shaft. That is to say, the control module 7 in the present device can know the state of the three-way valve driving shaft in real time, thereby determining whether the current state of the three-way valve is open or closed, and further determining whether the coolant circulation system is currently in a large circulation or a small circulation.

Claims

1. A fuel cell electronically controlled three-way valve driving device, characterized in that: The device comprises a motor (1), the output shaft of the motor (1) being connected to the input end of a gear box (2), a driving flat shaft (3) being arranged at the output end of the gear box (2), the driving flat shaft (3) being matched with a flat hole provided on the driving shaft of the three-way valve. The gear box (2) is also connected to a drive module (4), and a female connector (5) is provided on the drive module (4). The drive module (4) is fixedly connected to a control module (7) via bolts (6), and a pin connector (8) matching the female connector (5) is provided on the control module (7). An angle sensor (9) is also provided on the driving module (4); the top end of the driving flat shaft (3) is a calibration end (10); the calibration end (10) protrudes from the housing of the gear box (2) and passes through a through hole provided on the driving module (4); the angle sensor (9) and the calibration end (10) match each other.

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