Fuel cell stack cooling device easy to install

Abstract

The utility model discloses a fuel cell stack cooling device easy to install, and relates to the technical field of cell stack cooling, the fuel cell stack cooling device comprises a device housing and a cell stack, both sides of the device housing are provided with dustproof nets, a cooling fan is arranged above the device housing, the upper end of the device housing is provided with a second threaded hole, and the upper end of the device housing is provided with a second threaded hole. The number of the second threaded holes is four, second threaded rods are arranged in the four second threaded holes, the second threaded rods are in threaded connection with the device shell cover, lifting rings are arranged above the second threaded rods, the lifting rings are rotationally connected with the second threaded rods, and an electric control panel is arranged on one side of the device shell cover. According to the cooling device, a frame integrated structure is adopted, the cooling device is integrally hoisted and arranged outside the fuel cell stack in a sleeving mode, a telescopic fixing structure is arranged at the bottom of the cooling device, the cooling device arranged outside the fuel cell stack in a sleeving mode is supported and fixed, and the installation efficiency of the cooling device is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery stack cooling technology, specifically to an easy-to-install fuel cell stack cooling device. Background Technology

[0002] Air-cooled fuel cell stack cooling technology uses air as a cooling medium. Air is introduced into the stack through a fan or natural convection to remove the heat generated during the reaction. It has advantages such as simple structure, low cost and convenient maintenance. However, the cooling efficiency is limited by the ambient temperature and air flow, and it is suitable for small-power fuel cell systems.

[0003] Chinese Patent Publication No. CN210443624U, authorized on May 1, 2020, discloses a cooling device for an air-cooled fuel cell stack, belonging to the field of fuel cell stack cooling technology. This invention includes a fan located at the cooling air inlet of the fuel cell stack. A cooling mechanism is provided on the air inlet side of the fan. The cooling mechanism includes a water tank, a housing located above the water tank and connected at one end to the fan, a filter screen located at the other end of the housing, a cooling structure located inside the water tank, and a humidification structure located inside the housing and connected to the water tank. This invention effectively ensures cooling of the fuel cell stack in hot environments, thereby guaranteeing fuel cell performance.

[0004] The existing cooling device is installed on the outside of the fuel cell stack. The cooling device adopts a split structure, which makes the installation process complicated, time-consuming and labor-intensive, reducing the installation efficiency of the cooling device and failing to meet the usage requirements. Utility Model Content

[0005] The purpose of this utility model is to provide an easy-to-install fuel cell stack cooling device to solve the problems mentioned in the background art, which are that the existing cooling devices are installed on the outside of the fuel cell stack, the cooling devices adopt a split structure, the installation steps are complicated, time-consuming and labor-intensive, the installation efficiency of the cooling device is reduced, and the usage requirements cannot be met.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an easy-to-install fuel cell stack cooling device, comprising a device housing and a fuel cell stack. Dustproof nets are provided on both sides of the device housing, with two nets fixedly connected to the housing. At least three cooling fans are provided above the housing, connected to the housing by screws. The cooling fans communicate with the housing. Four second threaded holes are provided at the upper end of the housing, located at the four corners. Each of the four second threaded holes contains a second threaded rod, threaded to the housing. A lifting ring is provided above the second threaded rod, rotatably connected to it. An electrical control panel is provided on one side of the housing, connected to the housing by screws.

[0007] Preferably, the lower end of the device housing is provided with a first threaded hole, and there are four first threaded holes, which are located at the four corners of the device housing. Each of the four first threaded holes is provided with a first threaded rod, which is threadedly connected to the device housing. The lower end of the first threaded rod is provided with a rubber disc, which is fixedly connected to the first threaded rod.

[0008] Preferably, four installation anchors are installed on the rubber disc, and the installation anchors are slidably connected to the rubber disc through it. The four installation anchors are installed at equal intervals on the rubber disc.

[0009] Preferably, a top plate is provided above the cooling fan, and the top plate is connected to the device housing by screws, and the top plate is arranged in an inverted V shape.

[0010] Preferably, a water tank is provided below the device housing. There are two water tanks, and the water tanks are connected to the device housing by screws. A heat exchange tube is provided inside the device housing, and the heat exchange tube is connected to the device housing by screws. The heat exchange tube is located inside the dustproof net, and both ends of the heat exchange tube penetrate and extend into the interior of the water tank. A water pump is provided inside the water tank, and the water pump is connected to the water tank by screws. The water pump is connected to one end of the heat exchange tube.

[0011] Preferably, a temperature sensor is provided on one side of the water tank, and the temperature sensor is integrated with the water tank.

[0012] Preferably, a semiconductor cooling device is provided at the bottom of the water tank, and the semiconductor cooling device is integrated with the water tank.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model device comprises a lifting ring, a first threaded rod, a rubber disc, a first threaded hole, an anchor bolt, a second threaded hole, and a second threaded rod. The second threaded rod is connected to the device housing. The lifting ring is installed on top of the device housing. The lifting ring, in conjunction with lifting equipment, lifts the cooling device as a whole and mounts it on the outside of the fuel cell stack. The first threaded rod and the rubber disc form a support structure. The first threaded rod is threadedly connected to the device housing. Rotating the first threaded rod changes the extension length of the support structure, making it convenient to fix the cooling device on uneven ground. The anchor bolt limits the position of the rubber disc when it is placed on the ground, improving the stability of the installed cooling device and also playing a role in vibration reduction during operation, thus improving the practicality of the cooling device.

[0015] 2. This utility model device, through the arrangement of a water tank, a semiconductor refrigeration device, a temperature sensor, a heat exchange tube, and a water pump, allows cold water to be added to the water tank. The water pump draws the cold water from the water tank and sends it into the heat exchange tube. Air entering the device casing from the dust filter comes into contact with the heat exchange tube, which cools the incoming air. The cold air comes into contact with the fuel cell stack for better cooling, thus improving the cooling effect of the fuel cell stack. The temperature sensor measures the temperature of the cold water in the water tank. When the water temperature is high, the semiconductor refrigeration device is activated to cool the cold water in the water tank. When the water temperature is low, it further cools the air entering the device casing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a diagram showing the connection relationship between the heat exchange tube and the water tank of this utility model;

[0018] Figure 3 This is a structural diagram showing the connection between the first threaded rod and the device housing of this utility model;

[0019] Figure 4 This is a structural diagram showing the connection between the second threaded rod and the device housing of this utility model;

[0020] Figure 5 This is a structural diagram showing the connection between the device housing and the battery stack of this utility model.

[0021] In the diagram: 1. Device housing; 2. Dustproof net; 3. Cooling fan; 4. Top plate; 5. Lifting ring; 6. Electrical control panel; 7. First threaded rod; 8. Rubber disc; 9. Water tank; 10. Semiconductor refrigeration equipment; 11. Temperature sensor; 12. Heat exchange tube; 13. Water pump; 14. First threaded hole; 15. Mounting anchor bolt; 16. Second threaded hole; 17. Second threaded rod; 18. Battery stack. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-5 This utility model provides an embodiment of an easy-to-install fuel cell stack cooling device, comprising a device housing 1 and a fuel cell stack 18. Dustproof nets 2 are provided on both sides of the device housing 1, with two nets 2 fixedly connected to the housing 1. At least three cooling fans 3 are provided above the housing 1 and connected to the housing 1 by screws, communicating with each other. Four second threaded holes 16 are provided at the upper end of the housing 1, located at the four corners. Each of the four threaded holes 16 contains a second threaded rod 17, which is threadedly connected to the housing 1. A lifting ring 5 is provided above the second threaded rod 17, rotatably connected to it. An electronic control panel 6 is provided on one side of the housing 1, connected to the housing 1 by screws.

[0024] In use: The second threaded rod 17 is connected to the device housing 1. The lifting ring 5 is installed on the top of the device housing 1. The lifting ring 5, together with the lifting equipment, lifts the cooling device as a whole. The cooling device is then fitted onto the outside of the fuel cell stack. The cooling fan 3 is turned on to quickly exhaust the air inside the device housing 1. Outside air enters the device housing 1 through the dustproof net 2. The flowing air transfers and releases the heat on the fuel cell stack, thereby cooling the fuel cell stack.

[0025] Please see Figure 1 and Figure 3 The lower end of the device housing 1 is provided with four first threaded holes 14, which are located at the four corners of the device housing 1. Each of the four first threaded holes 14 has a first threaded rod 7 inside, which is threadedly connected to the device housing 1. A rubber disc 8 is provided at the lower end of the first threaded rod 7, and the rubber disc 8 is fixedly connected to the first threaded rod 7. Four installation anchors 15 are installed on the rubber disc 8, which are slidably connected to the rubber disc 8. The four installation anchors 15 are installed at equal intervals on the rubber disc 8. The first threaded rod 7 and the rubber disc 8 form a support structure. The first threaded rod 7 is threadedly connected to the device housing 1. Rotating the first threaded rod 7 changes the extension length of the support structure, making it convenient to fix the cooling device on an uneven bottom surface. The installation anchors 15 limit the rubber disc 8 when it is placed on the ground, improving the stability of the installed cooling device and also playing a role in vibration reduction during operation, thus improving the practicality of the cooling device.

[0026] Please see Figure 1 A top plate 4 is provided above the cooling fan 3, and the top plate 4 is connected to the device housing 1 by screws. The top plate 4 is set in an inverted V shape. The top plate 4 is installed above the cooling fan 3 and plays a protective role above the cooling fan 3, effectively preventing rainwater from splashing directly into the cooling fan 3 and protecting the cooling fan 3.

[0027] Please see Figure 1 and Figure 2 Below the device housing 1, there are two water tanks 9, which are connected to the device housing 1 by screws. Inside the device housing 1, there are heat exchange tubes 12, which are also connected to the housing by screws. The heat exchange tubes 12 are located inside the dustproof mesh 2, and both ends of the heat exchange tubes 12 extend into the interior of the water tanks 9. Inside the water tanks 9, there are water pumps 13, which are connected to the water tanks 9 by screws. One end of the water pump 13 is connected to the heat exchange tube 12. A temperature sensor 11 is located on one side of the water tanks 9 and is integrated with the water tanks 9. A semiconductor refrigeration unit is located at the bottom of the water tanks 9. The device 10, and the semiconductor refrigeration device 10 is integrated with the water tank 9. Cold water is added to the water tank 9, and the water pump 13 is turned on to draw the cold water from the water tank 9 and send it into the heat exchange tube 12. The air entering the device housing 1 from the dust screen 2 comes into contact with the heat exchange tube 12, and the heat exchange tube 12 cools the incoming air. The cold air comes into contact with the fuel cell stack for better cooling. The temperature sensor 11 measures the temperature of the cold water in the water tank 9. When the water temperature is high, the semiconductor refrigeration device 10 is turned on to cool the cold water in the water tank 9. When the water temperature is low, the air entering the device housing 1 is cooled better, thus improving the cooling effect of the fuel cell stack.

[0028] Working principle: The second threaded rod 17 is connected to the device housing 1. The lifting ring 5 is installed on the top of the device housing 1. The lifting ring 5, together with the lifting equipment, lifts the cooling device as a whole and sets the cooling device on the outside of the fuel cell stack. The first threaded rod 7 is rotated to change the extension length of the support structure. The rubber disc 8 contacts the ground and supports and fixes the cooling device. The installation anchor bolt 15 is used to fix the rubber disc 8 on the ground. The cooling fan 3 is turned on to quickly exhaust the air inside the device housing 1. Outside air enters the device housing 1 through the dustproof net 2. The flowing air transfers and releases the heat on the fuel cell stack, thereby cooling the fuel cell stack. The water pump 13 is turned on to draw cold water from the water tank 9 and send it into the heat exchange tube 12. The air entering the device housing 1 from the dustproof net 2 comes into contact with the heat exchange tube 12. The heat exchange tube 12 cools the incoming air. The cold air comes into contact with the fuel cell stack for better cooling and improves the cooling effect of the fuel cell stack.

[0029] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0030] 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 easy-to-install fuel cell stack cooling device, comprising a device housing (1) and a fuel cell stack (18), characterized in that: Dustproof nets (2) are provided on both sides of the device housing (1). There are two dustproof nets (2), and they are fixedly connected to the device housing (1). A cooling fan (3) is provided on the top of the device housing (1). There are at least three cooling fans (3), and they are connected to the device housing (1) by screws. The cooling fans (3) are connected to the device housing (1). A second threaded hole (16) is provided at the upper end of the device housing (1). There are four, and four second threaded holes (16) are located at the four corners of the device housing (1). Each of the four second threaded holes (16) is provided with a second threaded rod (17), and the second threaded rod (17) is threadedly connected to the device housing (1). A lifting ring (5) is provided above the second threaded rod (17), and the lifting ring (5) is rotatably connected to the second threaded rod (17). An electric control panel (6) is provided on one side of the device housing (1), and the electric control panel (6) is connected to the device housing (1) by screws.

2. The fuel cell stack cooling device according to claim 1, characterized in that: The lower end of the device housing (1) is provided with a first threaded hole (14). There are four first threaded holes (14), and the four first threaded holes (14) are located at the four corners of the device housing (1). The interior of each of the four first threaded holes (14) is provided with a first threaded rod (7), and the first threaded rod (7) is threadedly connected to the device housing (1). The lower end of the first threaded rod (7) is provided with a rubber disc (8), and the rubber disc (8) is fixedly connected to the first threaded rod (7).

3. The fuel cell stack cooling device according to claim 2, characterized in that: Anchor bolts (15) are installed on the rubber disc (8). There are four anchor bolts (15), and the anchor bolts (15) are slidably connected to the rubber disc (8). The four anchor bolts (15) are installed at equal intervals on the rubber disc (8).

4. The fuel cell stack cooling device according to claim 1, characterized in that: A top plate (4) is provided above the cooling fan (3), and the top plate (4) is connected to the device housing (1) by screws. The top plate (4) is arranged in an inverted V shape.

5. The fuel cell stack cooling device according to claim 1, characterized in that: A water tank (9) is provided below the device housing (1). There are two water tanks (9), and the water tanks (9) are connected to the device housing (1) by screws. A heat exchange tube (12) is provided inside the device housing (1), and the heat exchange tube (12) is connected to the device housing (1) by screws. The heat exchange tube (12) is located inside the dustproof net (2), and both ends of the heat exchange tube (12) penetrate and extend into the interior of the water tank (9). A water pump (13) is provided inside the water tank (9), and the water pump (13) is connected to the water tank (9) by screws. The water pump (13) is connected to one end of the heat exchange tube (12).

6. The fuel cell stack cooling device according to claim 5, characterized in that: A temperature sensor (11) is provided on one side of the water tank (9), and the temperature sensor (11) is connected to the water tank (9) as a whole.

7. The fuel cell stack cooling device according to claim 5, characterized in that: The bottom of the water tank (9) is provided with a semiconductor cooling device (10), and the semiconductor cooling device (10) is connected to the water tank (9) as a whole.

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