Auxiliary test device

Abstract

The utility model provides an auxiliary test device. The auxiliary test device comprises a movable mounting bracket; the exhaust device is arranged on the mounting bracket in a sliding manner; the exhaust device comprises a water pipe connected to the mounting support in a sliding mode and an exhaust pipe arranged on the side wall of the water pipe. The water pipe is connected in series into a cooling system of the fuel cell engine; a gas outlet of the exhaust pipe can be connected with an engine expansion water tank and used for exhausting gas in the cooling system. The auxiliary exhaust device can assist the engine in exhausting, ensures normal operation of the engine, enables the gas-electric engine to obtain correct operation parameters of a cooling system in the operation process, and is simple in structure and convenient to operate.

Description

Technical Field

[0001] The present application relates to the field of automobile technology, and in particular to an auxiliary test device. Background Art

[0002] At present, zero carbon and zero pollution are the future development trends of power. The principle of proton exchange membrane fuel cells is to use the reaction of hydrogen and oxygen to directly convert chemical energy into electrical energy. Due to its advantages such as high energy conversion efficiency and no pollution, hydrogen fuel cells are one of the best solutions to achieve the above goals.

[0003] During the development of hydrogen fuel cell engines, bench testing takes a relatively long time. Affected by the test bench resources, bench testing is often not matched with the radiator. Therefore, the heat dissipation of the engine is usually taken away by the cooling equipment. Since the radiator has an exhaust port, the entire fuel-electric engine cooling system lacks an exhaust port during the bench test, which will cause bubbles to exist in the weak links of the engine cooling system and cannot be discharged, resulting in the engine leaving the stack temperature being too high and the entering stack pressure being too low. Therefore, auxiliary test equipment is needed to help exhaust the cooling system.

[0004] Document CN116525875A provides a water replenishment and exhaust device and a pretreatment method, wherein the water replenishment and exhaust device includes a liquid storage device, a solenoid valve, a pipeline, etc. Through the pretreatment method and technical solution, the bubbles in the device to be tested can be quickly discharged, and the effect of rapid water replenishment can be achieved, thereby shortening the preparation time for the test and improving work efficiency; however, the use scenario of the device is limited to when the fuel-electric engine is offline and there is no problem with the exhaust of the fuel-electric engine. It cannot achieve the exhaust of the fuel-electric engine when it is running in the full power range, cannot be used in engine bench tests, and has a complex structure.

[0005] In summary, the present application provides an auxiliary test device, which is connected in series into the cooling system pipeline of the fuel-electric engine to assist the engine exhaust and ensure the normal operation of the engine, thereby facilitating the acquisition of correct cooling system operating parameters during the test operation of the fuel-electric engine; compared with the prior art, the overall structure is simple and practical. Utility Model Content

[0006] The purpose of this application is to provide an auxiliary test device that can assist in engine exhaust, ensure the normal operation of the engine, and enable the fuel-electric engine to obtain correct cooling system operating parameters during the operation test. The device has a simple structure and is easy to operate. The specific scheme is as follows:

[0007] An auxiliary test device comprises: a movable mounting bracket; an exhaust device slidably arranged on the mounting bracket; wherein the exhaust device comprises: a water pipe slidably connected to the mounting bracket, and an exhaust pipe arranged on the side wall of the water pipe; the water pipe is connected in series to the cooling system of a fuel cell engine; the air outlet of the exhaust pipe can be connected to an engine expansion water tank for exhausting gas in the cooling system.

[0008] Furthermore, a ball valve switch is arranged inside the water pipe.

[0009] Furthermore, the side wall of the water pipe is also provided with a conductivity sensor for measuring the conductivity of the coolant in the water pipe.

[0010] Furthermore, the mounting bracket includes: a base; support wheels are arranged around the lower surface of the base; a vertical rod is vertically arranged on the upper end of the base; a driving structure for driving the cross rod to move up and down is arranged on the top of the vertical rod; the cross rod is slidably connected to one side of the vertical rod; and a water pipe is slidably arranged on the upper end of the cross rod.

[0011] Furthermore, a limiting slide groove is provided at the upper end of the cross bar, and correspondingly, a limiting sliding block that slides in cooperation with the limiting slide groove is provided at the bottom of the water pipe.

[0012] Furthermore, a guide groove is provided on one side of the vertical rod facing the horizontal rod, and correspondingly, a guide block that slides in cooperation with the guide groove is provided at the end of the horizontal rod; wherein a threaded hole is provided in the middle of the guide block.

[0013] Furthermore, the driving structure includes: a driving motor fixed on the top of the vertical rod; the output shaft surface of the driving motor is provided with an external thread, and the output shaft extends into the guide groove and is threadedly matched with the threaded hole of the guide block.

[0014] Furthermore, L-shaped stabilizing brackets are provided at the top and bottom of one end of the cross bar close to the vertical bar; and the stabilizing brackets and the cross bar are clearance-matched.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model provides an auxiliary test device, which is connected in series to the cooling system of the fuel cell engine through an exhaust device slidably arranged on a movable mounting bracket, so as to assist the engine in exhausting air, thereby enabling the fuel cell engine to operate normally and facilitating obtaining correct cooling system operating parameters during the fuel cell engine operation test; secondly, through the design of the mounting bracket, the connection position of the exhaust device can be adjusted accordingly according to the layout position of the fuel cell engine on site, so as to facilitate the operation of on-site test personnel; the auxiliary test device provided by the present application has a simple overall structure, strong practicality, convenient operation and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the auxiliary test device;

[0018] Figure 2 It is a schematic diagram of the overall structure of the exhaust device.

[0019] In the figure:

[0020] 1. Mounting bracket; 11. Base; 12. Support wheels; 13. Vertical rod; 14. Driving structure; 140. Driving motor;

[0021] 15. Crossbar; 16. Limit slider;

[0022] 17. Guide groove;

[0023] 2. Exhaust device; 21. Water pipe; 22. Exhaust pipe;

[0024] 3. Ball valve switch;

[0025] 4. Conductivity sensor;

[0026] 5. Stabilize the bracket. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of this application clearer, the following will be combined with the attached Figure 1-2 The present application is further described in detail. Obviously, the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0028] It should be understood that although the terms first, second, third, etc. may be used to describe in the embodiments of the present application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, without departing from the scope of the embodiments of the present application, the first may also be referred to as the second, and similarly, the second may also be referred to as the first.

[0029] The present application provides an auxiliary test device, comprising: a movable mounting bracket 1; an exhaust device 2 slidably arranged on the mounting bracket 1; wherein the exhaust device 2 comprises: a water pipe 21 slidably connected to the mounting bracket 1, and an exhaust pipe 22 arranged on the side wall of the water pipe 21; the water pipe 21 is connected in series to the cooling system of the fuel cell engine; the outlet of the exhaust pipe 22 can be connected to the engine expansion tank for discharging the gas in the cooling system.

[0030] Specifically, the present application connects the water pipe 21 in series to the cooling system of the fuel cell engine and discharges the bubbles in the pipe through the exhaust pipe 22, so as to avoid the fuel cell engine from being unable to operate normally due to high temperature and low water pressure during the test, thereby affecting the correctness of the cooling system operating parameters obtained during the fuel cell engine test.

[0031] Optionally, a ball valve switch 3 is provided inside the water pipe 21; it can be understood that the coolant flow through the water pipe 21 is adjusted by the ball valve switch 3, so as to adapt to different models of engines.

[0032] Optionally, the side wall of the water pipe 21 is further provided with a conductivity sensor 4 for measuring the conductivity of the coolant in the water pipe 21; the conductivity in the coolant is detected by the conductivity sensor 4 to prevent the conductivity of the coolant from being too high.

[0033] Optionally, the mounting bracket 1 includes: a base 11; support wheels 12 are arranged around the lower surface of the base 11; a vertical rod 13 is vertically arranged at the upper end of the base 11; a driving structure 14 for driving the cross rod 15 to move up and down is arranged at the top of the vertical rod 13; the cross rod 15 is slidably connected to one side of the vertical rod 13; and a water pipe 21 is slidably arranged at the upper end of the cross rod 15.

[0034] Specifically, the mounting bracket 1 can be quickly moved by the supporting wheels 12, and the arrangement position of the exhaust device 2 on the mounting bracket 1 can be adjusted according to the connection position of the cooling water pipe of the fuel cell engine, so as to facilitate the operation of the tester.

[0035] Optionally, a limiting slide groove is provided at the upper end of the cross bar 15, and correspondingly, a limiting slider 16 that slides in cooperation with the limiting slide groove is provided at the bottom of the water pipe 21.

[0036] Optionally, a guide groove 17 is provided on one side of the vertical rod 13 facing the cross rod 15, and correspondingly, a guide block that slides in cooperation with the guide groove 17 is provided at the end of the cross rod 15; wherein a threaded hole is provided in the middle of the guide block.

[0037] Optionally, the driving structure 14 includes: a driving motor 140 fixed to the top of the vertical rod 13; the output shaft surface of the driving motor 140 is provided with external threads, and the output shaft extends into the guide groove 17 and is threadedly matched with the threaded hole of the guide block.

[0038] It can be understood that the present application drives the output shaft to rotate by driving the motor 140, thereby driving the cross bar 15 to slide up and down on the vertical bar 13, that is, through the screw principle, the cross bar 15 moves more stably on the vertical bar 13.

[0039] Optionally, L-shaped stabilizing brackets 5 are provided at the top and bottom of one end of the cross bar 15 close to the vertical bar 13; the stabilizing brackets 5 and the cross bar 15 are clearance-fitted; the advantage of this design is that the strength of the cross bar 15 can be strengthened by two L-shaped brackets to avoid breakage at the end of the cross bar 15, and secondly, the stability of the movement of the cross bar 15 is further improved.

[0040] When in use, the mounting bracket 1 is moved to the side of the fuel cell engine to be tested, and the exhaust device 2 is connected in series to the cooling system of the fuel cell engine. By continuously running the fuel cell engine for a unit time, the cooling system operating parameters of the fuel cell engine can be accurately obtained. Compared with the prior art, the auxiliary test device provided in the present application has a simple overall structure, strong practicality, is easy for testers to operate, and has the advantage of high efficiency.

[0041] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of the layers and regions may be enlarged, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

Claims

1. An auxiliary test device, characterized in that: include: A removable mounting bracket (1); An exhaust device (2) is slidably arranged on a mounting bracket (1); wherein the exhaust device (2) comprises: a water pipe (21) slidably connected to the mounting bracket (1), and an exhaust pipe (22) arranged on the side wall of the water pipe (21); the water pipe (21) is connected in series to the cooling system of a fuel cell engine; and the exhaust pipe (22) has an outlet that can be connected to an engine expansion tank to exhaust gas in the cooling system.

2. The auxiliary test device according to claim 1, characterized in that: A ball valve switch (3) is arranged inside the water pipe (21).

3. The auxiliary test device according to claim 2, characterized in that: The side wall of the water pipe (21) is also provided with a conductivity sensor (4) for measuring the conductivity of the coolant in the water pipe (21).

4. The auxiliary test device according to claim 3, characterized in that: The mounting bracket (1) comprises: a base (11); support wheels (12) are arranged around the lower surface of the base (11); a vertical rod (13) is vertically arranged at the upper end of the base (11); a driving structure (14) for driving a horizontal rod (15) to move up and down is arranged at the top of the vertical rod (13); the horizontal rod (15) is slidably connected to one side of the vertical rod (13); and a water pipe (21) is slidably arranged at the upper end of the horizontal rod (15).

5. The auxiliary test device according to claim 4, characterized in that: A limiting slide groove is arranged at the upper end of the cross bar (15), and correspondingly, a limiting sliding block (16) is arranged at the bottom of the water pipe (21) to slide in cooperation with the limiting slide groove.

6. The auxiliary test device according to claim 5, characterized in that: A guide groove (17) is provided on one side of the vertical rod (13) facing the cross rod (15), and correspondingly, a guide block is provided at the end of the cross rod (15) to slide in cooperation with the guide groove (17); wherein a threaded hole is provided in the middle of the guide block.

7. The auxiliary test device according to claim 6, characterized in that: The driving structure (14) comprises: a driving motor (140) fixed on the top of the vertical rod (13); an output shaft surface of the driving motor (140) is provided with an external thread, and the output shaft extends into the guide groove (17) and is threadably matched with the threaded hole of the guide block.

8. The auxiliary test device according to claim 7, characterized in that: An L-shaped stabilizing bracket (5) is provided at the top and bottom of one end of the cross bar (15) close to the vertical bar (13); the stabilizing bracket (5) and the cross bar (15) are clearance-matched.

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