Test distribution head for factory acceptance testing of fuel cells

Abstract

The application provides a test distribution head for factory acceptance test of a fuel cell, comprising a test head body, a distribution head mounting surface and a pipeline mounting surface oppositely arranged on the test head body, three medium guide pipelines arranged at intervals in the test head body, a pipeline connected to the other end of each medium guide pipeline, a pressure sensor and a temperature sensor arranged on each medium guide pipeline, a test head positioning hook arranged at the lower part of the test head body, and a clamp main body structure arranged at the upper part of the test head body, wherein the clamp main body structure comprises a clamp support part, a rotating shaft arranged on the clamp support part, a driving plate hand connected to the rotating shaft, and a U-shaped clamping part arranged on the driving plate hand. The test distribution head for factory acceptance test of a fuel cell is simple and compact in structure, and short in installation and operation time.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery performance detection, in particular to a test distribution head for factory acceptance test of fuel cell. BACKGROUND

[0002] When fuel cell is assembled, multiple fuel cells are stacked together to form an electric pile. Before the electric pile is shipped, comprehensive tests are carried out to ensure product quality, and the factory acceptance test is one of the important detection links.

[0003] The existing test distribution head for factory acceptance test is screwed onto the electric pile, then the pipeline is connected to the test distribution head, and then the sensor is fixed on each pipeline. The connection mode of this test distribution head and the electric pile is long in operation time.

[0004] How to design a test distribution head that can quickly connect with the electric pile and reasonably integrate and install the pipeline and the sensor is a problem to be solved by those skilled in the art. SUMMARY

[0005] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present application is to provide a test distribution head for factory acceptance test of fuel cell, which can quickly connect with the electric pile and reasonably integrate and install the pipeline and the sensor.

[0006] To achieve the above-mentioned purpose and other related purposes, the present application provides a test distribution head for factory acceptance test of fuel cell, which is used for connecting the electric pile.

[0007] The electric pile is provided with a transition plate, and the transition plate has a plate mounting surface; the top surface of the transition plate is provided with a clamp receiving hook, and the lower part of the plate mounting surface of the transition plate is provided with a plate through hole, the plate through hole penetrates the bottom surface of the transition plate, and the plate through hole is provided with a plate receiving rod, the central axis of the plate receiving rod is perpendicular to the up-down direction of the transition plate; the transition plate is provided with three medium flow holes;

[0008] The test distribution head comprises a test head body, the test head body is provided with oppositely arranged distribution head mounting surface and pipeline mounting surface; three spaced medium flow guide pipelines are arranged in the test head body, the medium flow guide pipelines correspond to the medium flow through holes one by one; one end of each medium flow guide pipeline is arranged on the distribution head mounting surface, the other end of each medium flow guide pipeline is arranged on the pipeline mounting surface, and a pipeline is connected to the other end of each medium flow guide pipeline; a pressure sensor and a temperature sensor are arranged on each medium flow guide pipeline; a test head positioning hook for hooking a plate supporting rod is arranged on the lower part of the test head body; a clamp main body structure is arranged on the upper part of the test head body, the clamp main body structure comprises a clamp support part fixed on the upper part of the test head body, a rotating shaft is arranged on the clamp support part, the rotating shaft is connected with a driving plate hand, a U-shaped clamping part is arranged on the driving plate hand, the driving plate hand can rotate around the rotating shaft, and the driving plate hand drives the U-shaped clamping part to move.

[0009] When the test distribution head is folded with the stack, the test head positioning hook of the test head body hooks the plate supporting rod, and the U-shaped clamping part of the test head body hooks the clamp supporting hook, so that the distribution head mounting surface of the test distribution head presses the plate mounting surface of the transition plate.

[0010] Preferably, the test head body is provided with a test head top surface, a test head bottom surface and two oppositely arranged mounting side surfaces, the top of the two mounting side surfaces is connected with the test head top surface, the bottom of the two mounting side surfaces is connected with the test head bottom surface, and the test head top surface, the test head bottom surface and the two oppositely arranged mounting side surfaces are all between the distribution head mounting surface and the pipeline mounting surface; all the pressure sensors are arranged on one of the mounting side surfaces, and all the temperature sensors are arranged on the other mounting side surface.

[0011] Further, a distribution hoisting interface is arranged on the test head top surface of the test head body.

[0012] Preferably, each medium flow guide pipeline is connected with the pressure sensor through a sensor interface.

[0013] As described above, the test distribution head for factory acceptance test of fuel cell of the present application has the following beneficial effects:

[0014] The test distribution head for factory acceptance test of fuel cell of the present application uses when, when the test distribution head is folded with the electric pile, the test head positioning hook of the test head body hooks the plate receiving rod, the U-shaped clamping part of the test head body hooks the clamp receiving hook, so that the distribution head mounting surface of the test distribution head presses the plate mounting surface of the transition plate, then the test head body and the electric pile can be quickly installed; the pipeline, pressure sensor and temperature sensor are all installed on the test head body, then before each factory acceptance test, only the test head body needs to be installed, and the connection and disassembly work of the pipeline, pressure sensor and temperature sensor is not needed; the test distribution head for factory acceptance test of fuel cell of the present application has simple and compact structure, and short installation and operation time. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The figure shows the three-dimensional structure schematic diagram of the pipeline installation surface of the test distribution head for factory acceptance test of fuel cell of the present embodiment when the test distribution head is connected with the transition plate.

[0016] Figure 2 The figure shows the three-dimensional structure schematic diagram of the side of the transition plate away from the test distribution head when the test distribution head for factory acceptance test of fuel cell of the present embodiment is connected with the transition plate.

[0017] Figure 3 The figure shows the three-dimensional structure schematic diagram when the test distribution head for factory acceptance test of fuel cell of the present embodiment is disassembled with the transition plate.

[0018] Figure 4 The figure shows the three-dimensional structure schematic diagram of the test distribution head for factory acceptance test of fuel cell of the present embodiment.

[0019] Figure 5 The figure shows the side structure schematic diagram when the test distribution head for factory acceptance test of fuel cell of the present embodiment is disassembled with the electric pile.

[0020] Figure 6 The figure shows the side structure schematic diagram when the test distribution head for factory acceptance test of fuel cell of the present embodiment is connected with the electric pile.

[0021] Figure 7 The figure shows the three-dimensional structure schematic diagram of the clamp body structure on the test distribution head for factory acceptance test of fuel cell of the present embodiment.

[0022] Figure 8 The figure shows the three-dimensional structure schematic diagram when the sensor interface and the pressure sensor on the test distribution head for factory acceptance test of fuel cell of the present embodiment are disassembled.

[0023] BRIEF DESCRIPTION OF DRAWINGS

[0024] 110 stack

[0025] 120 transition plate

[0026] 121 plate mounting surface

[0027] 122 tong receiving hook

[0028] 123 plate through hole

[0029] 124 plate receiving rod

[0030] 125 media flow through hole

[0031] 200 test head body

[0032] 201 dispensing head mounting surface

[0033] 202 conduit mounting surface

[0034] 203 test head top surface

[0035] 204 test head bottom surface

[0036] 205 mounting side surface

[0037] 230 media flow conduit

[0038] 240 conduit

[0039] 250 test head positioning hook

[0040] 260 tong body structure

[0041] 261 tong support portion

[0042] 262 rotating shaft

[0043] 263 drive wrench

[0044] 264 U-shaped clamping portion

[0045] 270 dispensing hoist interface

[0046] 310 pressure sensor

[0047] 320 temperature sensor

[0048] 330 sensor interface DETAILED DESCRIPTION

[0049] The present application is herein described, by way of example only, with reference to certain embodiments thereof. It is readily apparent to a person of ordinary skill in the art that a number of other advantageous embodiments can be derived from the teaching of the present application without departing from the scope of the application.

[0050] Please refer to the drawings. It should be noted that the structure, proportion, size and the like shown in the drawings attached to the present specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the conditions that the present application can be implemented, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose that the present application can produce, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are only for the convenience of clear description, and are not used to limit the scope of the present application, and the change or adjustment of the relative relationship is also considered as the implementation of the present application without changing the technical content.

[0051] As shown in Figures 1 to 8 The test distribution head for factory acceptance test of fuel cell of the present embodiment is used for connecting the stack 110;

[0052] The stack 110 is provided with a transition plate 120 above, and the transition plate 120 has a plate mounting surface 121; the top surface of the transition plate 120 is provided with a clamp receiving hook 122, and the lower part of the plate mounting surface 121 of the transition plate 120 is provided with a plate through hole 123 which penetrates through the bottom surface of the transition plate 120, and the plate through hole 123 is provided with a plate receiving rod 124, and the central axis of the plate receiving rod 124 is perpendicular to the up-down direction of the transition plate 120; the transition plate 120 is provided with three medium flow through holes 125;

[0053] The test distribution head includes a test head body 200, and the test head body 200 has oppositely arranged distribution head mounting surface 201 and pipeline mounting surface 202; the test head body 200 is provided with three medium guide pipelines 230 which are arranged at intervals, and the medium guide pipelines 230 correspond to the medium flow through holes 125 one by one; one end of each medium guide pipeline 230 is arranged on the distribution head mounting surface 201, and the other end of each medium guide pipeline 230 is arranged on the pipeline mounting surface 202, and the other end of each medium guide pipeline 230 is connected with a pipe 240; the medium guide pipeline 230 is provided with a pressure sensor 310 and a temperature sensor 320; the lower part of the test head body 200 is provided with a test head positioning hook 250 for hooking the plate receiving rod 124; the upper part of the test head body 200 is provided with a clamp main body structure 260, and the clamp main body structure 260 includes a clamp support part 261 fixed on the upper part of the test head body 200, and the clamp support part 261 is provided with a rotating shaft 262, and the rotating shaft 262 is connected with a driving plate hand 263, and the driving plate hand 263 is provided with a U-shaped clamping part 264, and the driving plate hand 263 can rotate around the rotating shaft 262, and the driving plate hand 263 drives the U-shaped clamping part 264 to move;

[0054] When the test dispensing head is folded with the stack 110, the dispensing head mounting surface 201 of the test head body 200 is arranged opposite to the plate mounting surface 121 of the transition plate 120, and the medium flow guide pipes 230 are communicated with the corresponding medium flow holes 125; the test head positioning hook 250 of the test head body 200 hooks the plate receiving rod 124, and the U-shaped clamping part 264 of the test head body 200 hooks the clamp receiving hook 122, so that the dispensing head mounting surface 201 of the test dispensing head presses the plate mounting surface 121 of the transition plate 120.

[0055] When the test dispensing head is folded with the stack 110, the test head positioning hook 250 of the test head body 200 hooks the plate receiving rod 124, and the U-shaped clamping part 264 of the test head body 200 hooks the clamp receiving hook 122, so that the dispensing head mounting surface 201 of the test dispensing head presses the plate mounting surface 121 of the transition plate 120, the test head body 200 and the stack 110 can be quickly installed; the pipeline 240, the pressure sensor 310 and the temperature sensor 320 are all concentratedly installed on the test head body 200, so that only the test head body 200 needs to be installed before each factory acceptance test, and the connection and disconnection of the pipeline 240, the pressure sensor 310 and the temperature sensor 320 are not needed, which greatly shortens the installation time of each test.

[0056] Three kinds of media are respectively filled in the three medium flow guide pipes 230, and the three kinds of media are hydrogen, water and air, and the corresponding temperature sensors 320 and pressure sensors 310 of the three medium flow guide pipes 230 are all concentrated on the test dispensing head. The pipeline 240 ensures that the medium flow process has no leakage and small flow resistance, so that the factory acceptance test can be quickly and stably tested.

[0057] The pipeline 240 of the test dispensing head is connected with three kinds of media, the pressure sensor 310 and the temperature sensor 320 are installed on the test dispensing head, which can facilitate the quick connection of the test dispensing head and the stack 110, and the installation of the operator is more labor-saving, and the disassembly between the test dispensing head and the stack 110 after the test is more convenient.

[0058] Regarding the use of the clamp body structure 260, when it is necessary to fold the test distribution head with the stack 110, the driving plate hand 263 of the clamp body structure 260 moves away from the stack 110, the U-shaped clamping part 264 of the clamp body structure 260 hooks the clamp receiving hook 122, at this time the clamp body structure 260 is in the locked state; when it is necessary to separate the test distribution head from the stack 110, the driving plate hand 263 of the clamp body structure 260 moves towards the stack 110, the U-shaped clamping part 264 of the clamp body structure 260 is separated from the clamp receiving hook 122.

[0059] In this embodiment, the clamp body structure 260 and the clamp receiving hook 122 constitute a clamp assembly, which is a traction bolt type clamp, the manufacturer of which is DeStaco, the Chinese name: DeStaco; the model of the traction bolt type clamp is: 331-R.

[0060] The test head body 200 has a test head top surface 203, a test head bottom surface 204 and two oppositely arranged installation side surfaces 205, the top of the two installation side surfaces 205 is connected with the test head top surface 203, the bottom of the two installation side surfaces 205 is connected with the test head bottom surface 204, the test head top surface 203, the test head bottom surface 204 and the two oppositely arranged installation side surfaces 205 are all between the distribution head installation surface 201 and the pipeline installation surface 202; all the pressure sensors 310 are arranged on one of the installation side surfaces 205, and all the temperature sensors 320 are arranged on the other installation side surface 205. Since the sensors are fixed on each pipeline 240 in the prior art, the distance between the sensors and the stack 110 is far, which will affect the test results of the stack 110. In the test distribution head, all the pressure sensors 310 are arranged on one of the installation side surfaces 205, and all the temperature sensors 320 are arranged on the other installation side surface 205, which makes the positions of the pressure sensors 310 and the temperature sensors 320 closer to the stack 110, so that the detection results of the factory acceptance test can be closer to the true value, and the authenticity of the test results is ensured. The pressure sensors 310 and the temperature sensors 320 of the test distribution head do not need to be repeatedly disassembled, which avoids the difference caused by the installation of the pressure sensors 310 and the temperature sensors 320, so as to ensure the consistency of each detection adjustment.

[0061] The test head top surface 203 of the test head body 200 is provided with a distribution hoisting interface 270. The distribution hoisting interface 270 is used to connect a power arm, which makes the test distribution head capable of being suspended by a power arm, so as to ensure that the test distribution head is suspended and fixed with the pipeline 240, and to avoid the pipeline 240 and the test distribution head from falling in a non-test state.

[0062] Each medium guide pipeline 230 is connected with the pressure sensor 310 through the sensor interface 330. This structure facilitates the installation and replacement of the pressure sensor 310.

[0063] The method for using the test distribution head for the factory acceptance test of the fuel cell of the embodiment comprises the following steps:

[0064] 1) Pre-installation preparation: The pipeline 240, the pressure sensor 310 and the temperature sensor 320 are respectively installed on the test head body 200, and the air tightness of the test distribution head is detected. The pre-installation preparation is performed when the test distribution head is installed for the first time, and the pre-installation preparation is not required during the test. One end of each medium guide pipeline 230 arranged on the distribution head mounting surface 201 is provided with a sealing ring to improve the air tightness;

[0065] 2) The transition plate 120 of the test distribution head is manually fixed on the stack 110, and then the stack 110 is placed on a flat trolley;

[0066] 3) The trolley with the stack 110 is manually pushed to the side of the test bench for the factory acceptance test; the test distribution head is connected to the stack 110 to be tested, the quick locking clamp body structure 260 is locked, and the installation and connection of the test distribution head and the stack 110 are completed;

[0067] 4) Water, hydrogen and air are introduced, and after confirming that there is no problem with the air tightness, the test for the factory acceptance test can be started;

[0068] 5) After the test for the factory acceptance test is completed, the water, hydrogen and air are disconnected, and the connection between the test distribution head and the stack 110 is disconnected.

[0069] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.

Claims

1. A test distribution head for factory acceptance testing of a fuel cell, for connection to a stack (110); characterized in that: The electric pile (110) is provided with a transition plate (120), the transition plate (120) has a plate mounting surface (121) on it; the top surface of the transition plate (120) is provided with a clamp receiving hook (122), the lower part of the plate mounting surface (121) of the transition plate (120) is provided with a plate through hole (123), the plate through hole (123) penetrates the bottom surface of the transition plate (120), and the plate through hole (123) is provided with a plate receiving rod (124), the central axis of the plate receiving rod (124) is perpendicular to the up-down direction of the transition plate (120); the transition plate (120) is provided with three medium flow holes (125); the test distribution head comprises a test head body (200), the test head body (200) has oppositely arranged distribution head mounting surfaces (201) and pipeline mounting surfaces (202) on it; the test head body (200) is provided with three medium guide pipelines (230) arranged at intervals, the medium guide pipelines (230) correspond to the medium flow holes (125) one by one; one end of each medium guide pipeline (230) is arranged on the distribution head mounting surface (201), the other end of each medium guide pipeline (230) is arranged on the pipeline mounting surface (202), and a pipeline (240) is connected to the other end of each medium guide pipeline (230); each medium guide pipeline (230) is provided with a pressure sensor (310) and a temperature sensor (320); the lower part of the test head body (200) is provided with a test head positioning hook (250) for hooking the plate receiving rod (124); the upper part of the test head body (200) is provided with a clamp main body structure (260), the clamp main body structure (260) comprises a clamp support part (261) fixed to the upper part of the test head body (200), the clamp support part (261) is provided with a rotating shaft (262), the rotating shaft (262) is connected with a driving clamp (263), the driving clamp (263) is provided with a U-shaped clamping part (264), the driving clamp (263) can rotate around the rotating shaft (262), and the driving clamp (263) drives the U-shaped clamping part (264) to move; When the test distribution head is folded with the electric pile (110), the test head positioning hook (250) of the test head body (200) hooks the plate receiving rod (124), and the U-shaped clamping part (264) of the test head body (200) hooks the clamp receiving hook (122), so that the distribution head mounting surface (201) of the test distribution head presses the plate mounting surface (121) of the transition plate (120).

2. The test distribution head for factory acceptance testing of fuel cells of claim 1, wherein: The test head body (200) has a test head top surface (203), a test head bottom surface (204) and two oppositely arranged mounting side surfaces (205). The top of the two mounting side surfaces (205) is connected with the test head top surface (203), and the bottom of the two mounting side surfaces (205) is connected with the test head bottom surface (204). The test head top surface (203), the test head bottom surface (204) and the two oppositely arranged mounting side surfaces (205) are all between the dispensing head mounting surface (201) and the pipeline mounting surface (202). All the pressure sensors (310) are arranged on one of the mounting side surfaces (205), and all the temperature sensors (320) are arranged on the other mounting side surface (205).

3. The test distribution head for factory acceptance testing of fuel cells of claim 2, wherein: The test head top surface (203) of the test head body (200) is provided with a dispensing head hoisting interface (270).

4. The test distribution head for factory acceptance testing of fuel cells of claim 1, wherein: Each medium flow guide pipeline (230) is connected with the pressure sensor (310) through a sensor interface (330).

Images