Temperature monitoring device for air-cooled fuel cell stack

Abstract

The utility model discloses a temperature monitoring device for an air-cooled fuel cell stack, which relates to the technical field of fuel cell stacks, and comprises a fuel cell stack shell, a plurality of assembly parts are arranged at the inner bottom of the fuel cell stack shell, each assembly part comprises a hollow assembly channel, and the hollow assembly channels are communicated with the air-cooled fuel cell stack. A hollow assembling channel is formed in the side wall of the fuel cell stack shell, a temperature monitoring assembly is installed in the hollow assembling channel and comprises an assembling base, a plurality of temperature sensors are installed on the upper surface of the assembling base, the temperature monitoring assembly further comprises a controller installed on the side wall of the fuel cell stack shell, and the controller comprises a display screen. And the input end of the controller is electrically connected with the output end of the temperature sensor. The problems that although an existing temperature monitoring device can conduct temperature monitoring on the interior of the fuel cell stack, follow-up disassembly and assembly of the existing temperature monitoring device are complex and inconvenient, and the internal temperature monitoring device can be replaced and overhauled only by disassembling the fuel cell stack are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fuel cell stack technical field, concretely is a kind of temperature monitoring device for air-cooled fuel cell stack. BACKGROUND

[0002] Air-cooled stack fuel cell is a new clean energy technology, and is regarded as one of the representatives of next-generation energy technology. It uses the principle of fuel cell to convert hydrogen and oxygen into electric energy and heat energy through chemical reaction, and uses air-cooling technology for heat dissipation, so as to realize efficient, safe and environmentally friendly energy conversion.

[0003] Publication No.: CN216528975U, named "a temperature monitoring device of fuel cell stack", comprising: a plurality of bipolar plates, sequentially stacked to form a fuel cell stack, each bipolar plate comprising a cathode plate;A plurality of first temperature detection pieces, each first temperature detection piece is arranged on one cathode plate and can detect the temperature of the cathode plate;Current collection assembly, including two current collection plates, each current collection plate can be connected with external load and fuel cell stack through connecting wire;Second temperature detection piece, set at the position where each current collection plate and connecting wire are connected. The temperature monitoring device of fuel cell stack disclosed in the utility model can be disconnected with the electrical connection of external load once at least one of the first maximum temperature exceeds the first preset temperature and the second maximum temperature exceeds the second preset temperature, reducing the possibility of fuel cell stack being burned due to temperature exceeding the maximum temperature it can withstand.

[0004] Although the above-mentioned existing temperature monitoring device can monitor the temperature inside the fuel cell stack, it is relatively complex and inconvenient to disassemble and assemble subsequently, and the fuel cell stack needs to be disassembled to replace and maintain the internal temperature monitoring device. Therefore, it does not meet the existing needs, and a temperature monitoring device for air-cooled fuel cell stack is proposed. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a temperature monitoring device for air-cooled fuel cell stack to solve the problem that although the existing temperature monitoring device can monitor the temperature inside the fuel cell stack, it is relatively complex and inconvenient to disassemble and assemble subsequently, and the fuel cell stack needs to be disassembled to replace and maintain the internal temperature monitoring device.

[0006] To achieve the above object, the utility model provides the following technical scheme: A temperature monitoring device for air -cooled fuel cell stack, include: fuel cell stack casing, the inside bottom of fuel cell stack casing is equipped with a plurality of assembly parts, the assembly part includes hollow assembly channel, temperature monitoring component is installed in the inside of hollow assembly channel, temperature monitoring component includes assembly seat, a plurality of temperature sensors are installed to the upper surface of assembly seat, temperature monitoring component still includes the controller of installation on the side wall of fuel cell stack casing, the controller includes display screen, and the input of controller is electrically connected with the output of temperature sensor.

[0007] Preferably, the lower bottom of the assembly seat is provided with a junction box, a nylon corrugated hose is installed at the outlet of the junction box, and the wiring between the temperature sensor and the controller is arranged in the nylon corrugated hose through the junction box.

[0008] Preferferably, the upper part of the hollow assembly channel is provided with an upper groove, and the lower part of the hollow assembly channel is provided with a lower groove.

[0009] Preferably, the temperature sensor is infrared temperature sensing type, and the infrared end of the temperature sensor is located in the inside of the upper groove.

[0010] Preferably, four positioning holes are arranged between the upper groove and the lower groove, and the assembly seat is installed in the lower groove through positioning bolts.

[0011] Preferably, positioning seats are installed at the four corners of the controller, and the positioning seats are installed on the side wall of the fuel cell stack casing through bolts.

[0012] Preferably, four groups of high bases are installed on the lower bottom plate of the fuel cell stack casing.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] (1), in the utility model, a plurality of hollow assembly channels are arranged at the bottom of the fuel cell stack casing, a plurality of temperature sensors are installed at the assembly seat, the temperature sensors are installed at the bottom by the installation from bottom to top, the controller is installed on the side wall of the casing, the user can quickly know the temperature change, the assembly parts at the bottom are arranged in a plurality of horizontal intervals, the temperature sensors can be distributed at each position of the battery stack, the temperature monitoring accuracy is improved, the installation structure can be individually removed from the bottom during subsequent replacement and maintenance, the fuel cell stack in the casing does not need to be disassembled, and the convenience of assembly and disassembly is improved.

[0015] (2), the utility model discloses, through the setting of junction box, be used for the wiring of temperature sensor of upper place, through the setting of nylon corrugated flexible pipe, can make the wiring of being located outside to be arranged to the flexible pipe, protect the wiring through nylon corrugated flexible pipe, improve security.

[0016] (3), the utility model discloses, after installing temperature sensor, it will not protrude from upper groove, make it and the gap between fuel cell stack in shell, avoid contact when dismounting the fuel cell stack of upper installation, improve security, temperature sensor adopts infrared type, can carry out temperature monitoring operation to upper place without contact, lower groove is installed combination for assembly seat, adopt the positioning of locating bolt, and the locating bolt is short screw rod, and it also will not protrude from upper groove after installing, under the premise of convenient dismounting, avoid bolt contact fuel cell stack, further improve security. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall plan view of the utility model;

[0018] Figure 2 It is the overall bottom view of the utility model;

[0019] Figure 3 It is the assembly part plan view of the utility model;

[0020] Figure 4 It is the assembly part bottom view of the utility model;

[0021] Figure 5 It is temperature monitoring assembly structure schematic view of the utility model;

[0022] In the drawing: 1, fuel cell stack shell;101, heighten pedestal;2, assembly part;201, upper groove;202, hollow assembly channel;203, positioning hole;204, lower groove;3, temperature monitoring assembly;301, assembly seat;302, temperature sensor;303, junction box;304, locating bolt;305, controller;306, display screen;307, nylon corrugated flexible pipe;308, positioning seat. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0024] Please refer to Figures 1-5The utility model provides an embodiment: a kind of temperature monitoring device for air-cooled fuel cell stack, comprising: fuel cell stack shell 1, four groups of high base 101 are installed to the lower bottom plate of fuel cell stack shell 1;Through the setting of high base 101, the shell can be increased, and there is space between the wiring box 303 installed at bottom and ground.

[0025] Multiple assembly parts 2 are opened in the inner bottom of fuel cell stack shell 1, and the assembly part 2 includes a hollow assembly channel 202, a temperature monitoring assembly 3 is installed inside the hollow assembly channel 202, the temperature monitoring assembly 3 includes an assembly seat 301, multiple temperature sensors 302 are installed on the upper surface of the assembly seat 301, the temperature monitoring assembly 3 further includes a controller 305 installed on the side wall of the fuel cell stack shell 1, the controller 305 includes a display screen 306, and the input end of the controller 305 is electrically connected with the output end of the temperature sensor 302;A positioning seat 308 is installed at each corner of the controller 305, and the positioning seat 308 is installed on the side wall of the fuel cell stack shell 1 by bolts;The controller 305 is designed to be detachable, and the controller 305 can be conveniently detached by the bolts at the positioning seat 308.

[0026] Multiple hollow assembly channels 202 are opened in the bottom of the fuel cell stack shell 1, multiple groups of temperature sensors 302 are installed at the assembly seat 301, and the temperature sensors 302 are installed at the bottom by the installation from bottom to top, and the controller 305 is installed on the side wall of the shell, so that the user can quickly know the temperature change, the assembly part 2 at the bottom is provided with multiple assembly parts 2, which are distributed in a horizontal direction, so that the temperature sensors 302 can be distributed at each position of the battery stack, and the temperature monitoring accuracy is improved.

[0027] The lower bottom of the assembly seat 301 is provided with a wiring box 303, a nylon corrugated hose 307 is installed at the outlet of the wiring box 303, and the wiring between the temperature sensor 302 and the controller 305 is arranged in the nylon corrugated hose 307 through the wiring box 303.

[0028] The wiring box 303 is arranged to place the wiring of the temperature sensor 302 above, the nylon corrugated hose 307 is arranged to enable the wiring outside to be arranged in the hose, the wiring is protected by the nylon corrugated hose 307, and the safety is improved.

[0029] Further, the upper part of the hollow assembly channel 202 is provided with an upper groove 201, the lower part of the hollow assembly channel 202 is provided with a lower groove 204, the temperature sensor 302 is infrared temperature sensing type, the model is MLX90614, the infrared end of the temperature sensor 302 is located inside the upper groove 201, four positioning holes 203 are arranged between the upper groove 201 and the lower groove 204, and the assembly seat 301 is installed in the lower groove 204 through positioning bolts 304;

[0030] After the temperature sensor 302 is installed, it does not protrude from the upper groove 201, so that a gap exists between the temperature sensor 302 and the fuel cell stack in the shell, the fuel cell stack installed above is avoided from being contacted during disassembly, and safety is improved; the temperature sensor 302 is infrared type, can be operated without contacting the temperature above, and the lower groove 204 is used for installing and combining the assembly seat 301, positioning is performed through the positioning bolts 304, the positioning bolts 304 are short screw rods, after installation, the positioning bolts 304 also do not protrude from the upper groove 201, under the premise of facilitating disassembly, the bolts are avoided from contacting the fuel cell stack, and safety is further improved.

[0031] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point, the embodiments should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims instead of the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. A temperature monitoring device for an air-cooled fuel cell stack, comprising a fuel cell stack housing (1), characterized in that: The inner bottom of the fuel cell stack shell (1) is provided with a plurality of assembly parts (2), the assembly part (2) comprises a hollow assembly channel (202), the inside of the hollow assembly channel (202) is provided with a temperature monitoring assembly (3), the temperature monitoring assembly (3) comprises an assembly seat (301), the upper surface of the assembly seat (301) is provided with a plurality of temperature sensors (302), the temperature monitoring assembly (3) further comprises a controller (305) installed on the side wall of the fuel cell stack shell (1), the controller (305) comprises a display screen (306), and the input end of the controller (305) is electrically connected with the output end of the temperature sensor (302).

2. A temperature monitoring device for air-cooled fuel cell stacks according to claim 1, characterized in that: The lower bottom of the assembly seat (301) is provided with a junction box (303), the outlet of the junction box (303) is provided with a nylon corrugated hose (307), and the wiring between the temperature sensor (302) and the controller (305) is arranged into the nylon corrugated hose (307) through the junction box (303).

3. A temperature monitoring device for air-cooled fuel cell stacks according to claim 1, characterized in that: The upper part of the hollow assembly channel (202) is provided with an upper groove (201), and the lower part of the hollow assembly channel (202) is provided with a lower groove (204).

4. A temperature monitoring device for air-cooled fuel cell stacks according to claim 3, characterized in that: The temperature sensor (302) is of infrared temperature sensing type, and the infrared end of the temperature sensor (302) is located in the inside of the upper groove (201).

5. A temperature monitoring device for air-cooled fuel cell stacks according to claim 3, characterized in that: Four positioning holes (203) are arranged between the upper groove (201) and the lower groove (204), and the assembly seat (301) is installed in the lower groove (204) through positioning bolts (304).

6. A temperature monitoring device for air-cooled fuel cell stacks according to claim 1, characterized in that: The four corners of the controller (305) are provided with positioning seats (308), and the positioning seats (308) are installed on the side wall of the fuel cell stack shell (1) through bolts.

7. The temperature monitoring device for air-cooled fuel cell stack according to claim 1, wherein: Four groups of high bases (101) are installed on the lower bottom plate of the fuel cell stack shell (1).

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