Explosion-proof fuel cell cooling fan

Abstract

The utility model relates to the technical field of explosion-proof protection, and provides an explosion-proof fuel cell cooling fan, which comprises a movable impeller, a plurality of cooling fans and a cooling fan, the movable impeller comprises a movable impeller hub and a plurality of movable blades arranged on the outer circumferential surface of the movable impeller hub, and the movable blades are configured to introduce airflow through rotation; and the fan motor is connected with the movable impeller, the fan motor is configured to drive the movable blades to rotate, and the fan motor is filled with non-combustible gas. According to the utility model, the fan motor is filled with the incombustible gas, so that the risk of explosion caused by sparks generated by the fan motor is effectively reduced, and a safer and more reliable working environment is provided.

Description

Technical Field

[0001] The utility model generally relates to the field of explosion-proof protection technology. Specifically, the utility model relates to an explosion-proof fuel cell cooling fan. Background Art

[0002] Explosion-proof fuel cells are currently widely used in various applications, such as industrial equipment in hazardous environments, or in aerospace, etc. In these applications, preventing the explosion of fuel cells is a crucial link.

[0003] However, traditional cooling fans may generate sparks or overheat during operation, greatly increasing the risk of explosion of explosion-proof fuel cells. Utility Model Content

[0004] In order to at least partially solve the above problems in the prior art, the utility model provides an explosion-proof fuel cell cooling fan, comprising:

[0005] an impeller including an impeller hub and a plurality of impeller blades disposed on an outer circumferential surface of the impeller hub, wherein the impeller blades are configured to introduce airflow by rotating; and

[0006] A fan motor is connected to the impeller, and is configured to drive the impeller to rotate, wherein the interior of the fan motor is filled with non-flammable gas.

[0007] In one embodiment of the utility model, it is provided that the fan motor is a sealed structure.

[0008] In one embodiment of the utility model, it is provided that the explosion-proof fuel cell cooling fan further comprises:

[0009] The control device is connected to the fan motor, and the safety control module is configured to monitor the operating parameters of the fan motor and control the operation of the fan motor according to the operating parameters.

[0010] In one embodiment of the present invention, it is provided that the operating parameters include the temperature, current and vibration frequency of the fan motor.

[0011] In one embodiment of the present invention, it is provided that the safety control module is configured to cut off the power supply when an abnormality is detected in the monitored operating parameters.

[0012] In one embodiment of the present invention, it is provided that the non-combustible gas includes nitrogen and / or argon.

[0013] In one embodiment of the present invention, it is provided that the moving blade has a root and a top relative to each other and a trailing edge located between the root and the top, and the root of the moving blade is fixedly connected to the moving blade hub.

[0014] In one embodiment of the utility model, it is provided that the explosion-proof fuel cell cooling fan further comprises:

[0015] The stationary impeller comprises a stationary impeller hub and a plurality of stationary blades arranged on the outer circumferential surface of the stationary impeller hub, wherein the stationary blades are configured to guide the airflow introduced by the moving blades.

[0016] In one embodiment of the present invention, it is provided that the stationary blade has a relative root and a top, and the root of the stationary blade is fixedly connected to the stationary blade hub.

[0017] The present utility model has at least the following beneficial effects: (1) Safety and reliability. The present utility model effectively reduces the risk of explosion caused by sparks generated by the fan motor by filling the interior of the fan motor with non-flammable gas, thereby providing a safer and more reliable working environment. (2) Environmental protection and energy saving. The present utility model uses non-flammable gas as a filler, which is non-toxic and harmless and environmentally friendly. At the same time, the filling of non-flammable gas also helps to reduce energy loss and improve the efficiency of the cooling fan. (3) Monitorable. The present utility model monitors and protects the working status of the fan motor in real time through a safety control device, thereby improving the safety and reliability of the explosion-proof fuel cell cooling fan. (4) Wide application. The present utility model can meet the cooling needs of explosion-proof fuel cells in various application scenarios, for example, it can be applied to industrial equipment, aerospace and other fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To further illustrate the advantages and features of the various embodiments of the present invention, a more detailed description of the various embodiments of the present invention will be presented with reference to the accompanying drawings. It will be understood that these drawings only depict typical embodiments of the present invention and are therefore not to be considered as limiting the scope thereof. In the accompanying drawings, for clarity, identical or corresponding components will be represented by identical or similar reference numerals.

[0019] Figure 1 A schematic diagram of an explosion of an explosion-proof fuel cell cooling fan in an embodiment of the utility model is shown.

[0020] Reference numerals: 101 moving impeller, 102 stationary impeller, 103 fan motor, 104 control device DETAILED DESCRIPTION

[0021] It should be noted that the components in the figures may be shown exaggeratedly for the sake of illustration and are not necessarily true to scale. In the figures, identical or functionally identical components are provided with the same reference numerals.

[0022] In the present invention, unless otherwise specified, "arranged on...", "arranged above..." and "arranged above..." do not exclude the existence of an intermediate object between the two. In addition, "arranged on or above..." only indicates the relative positional relationship between two components, and in certain circumstances, such as after reversing the product direction, it can also be converted into "arranged under or below...", and vice versa.

[0023] In the present invention, each embodiment is only intended to illustrate the solution of the present invention and should not be understood as limiting.

[0024] In the present invention, unless otherwise specified, the quantifiers "a", "an" and "an" do not exclude the presence of multiple elements.

[0025] It should also be noted that in the embodiments of the present invention, for the sake of clarity and simplicity, only a portion of the components or assemblies may be shown, but those of ordinary skill in the art will understand that under the teachings of the present invention, the required components or assemblies may be added according to the needs of the specific scenario. In addition, unless otherwise specified, the features in different embodiments of the present invention may be combined with each other. For example, a feature in the second embodiment may be used to replace a feature in the first embodiment that corresponds to or has the same or similar functions, and the resulting embodiment also falls within the disclosure scope or recorded scope of the present application.

[0026] It should also be pointed out that within the scope of the present invention, the terms "same", "equal", "equal to" and the like do not mean that the values ​​of the two are absolutely equal, but allow a certain reasonable error, that is, the terms also cover "substantially the same", "substantially equal", "substantially equal to". By analogy, in the present invention, the terms "perpendicular to", "parallel to", etc. indicating directions also cover the meanings of "substantially perpendicular to" and "substantially parallel to".

[0027] In addition, the numbering of the steps of the methods of the present invention does not limit the execution order of the method steps. Unless otherwise specified, the method steps can be executed in different orders.

[0028] The present invention will be further described below in conjunction with specific embodiments with reference to the accompanying drawings.

[0029] Figure 1 FIG. 1 shows an explosion diagram of an explosion-proof fuel cell cooling fan in one embodiment of the utility model. Figure 1 As shown, the explosion-proof fuel cell cooling fan includes: a moving impeller 101 , a stationary impeller 102 , a fan motor 103 and a control device 104 .

[0030] The impeller 101 is connected to the rotating shaft of the fan motor 103, and the impeller 101 includes an impeller hub and a plurality of impeller blades arranged on the outer circumferential surface of the impeller hub, wherein the fan motor 103 drives the impeller blades to rotate, and the impeller blades are configured to introduce airflow by rotation. The impeller blades have a relative root and a top and a trailing edge between the root and the top, and the root of the impeller blade is fixedly connected to the impeller hub.

[0031] The stationary impeller 102 is arranged opposite to the moving impeller 101, wherein the stationary impeller 102 includes a stationary impeller hub and a plurality of stationary blades arranged on the outer circumferential surface of the stationary impeller hub, the stationary blades are configured to guide the airflow introduced by the moving blades, the stationary blades have relative roots and tops, and the roots of the stationary blades are fixedly connected to the stationary impeller hub.

[0032] The interior of the fan motor 103 is filled with a non-combustible gas, and the non-combustible gas can provide explosion-proof protection for the fan motor 103. The non-combustible gas can be an inert gas: nitrogen, helium, neon, argon, krypton, xenon, etc. In addition, other non-combustible gases are also conceivable, such as carbon dioxide (CO2), carbon tetrachloride (CCl4), etc. Filling the interior of the fan motor 103 with non-combustible gas can effectively reduce the presence of oxygen in the fan motor 103, thereby reducing the risk of sparks causing explosions.

[0033] The fan motor 103 may adopt a sealing structure, which can ensure that the non-combustible gas does not leak and prevent external harmful gases from entering the interior of the fan motor 103.

[0034] The control device 104 is connected to the fan motor 103, and the control device 104 can monitor the operating parameters of the fan motor 103, including temperature, current and vibration frequency. When the safety control module detects that the operating parameters of the fan motor 103 are abnormal, the safety control module can take corresponding measures in time, such as cutting off the power supply, so as to ensure the safe operation of the explosion-proof fuel cell cooling fan.

[0035] Although various embodiments of the utility model are described above, it should be understood that they are presented as examples only and not as limitations. It is obvious to those skilled in the relevant art that various combinations, modifications and changes can be made thereto without departing from the spirit and scope of the utility model. Therefore, the breadth and scope of the utility model disclosed herein should not be limited by the exemplary embodiments disclosed above, but should only be defined according to the attached claims and their equivalents.

Claims

1. An explosion-proof fuel cell cooling fan, characterized in that: include: an impeller connected to a rotating shaft of the fan motor, the impeller comprising an impeller hub and a plurality of impeller blades disposed on an outer circumferential surface of the impeller hub, wherein the impeller blades are configured to introduce airflow by rotating; as well as A fan motor has a rotating shaft connected to the impeller, and the fan motor is configured to drive the impeller to rotate via the rotating shaft, wherein the interior of the fan motor is filled with non-flammable gas.

2. The explosion-proof fuel cell cooling fan according to claim 1, characterized in that: The fan motor is a sealed structure; and / or The non-combustible gas is an inert gas.

3. The explosion-proof fuel cell cooling fan according to claim 1, characterized in that: Also includes: A control device is connected to the fan motor, wherein the control device comprises a safety control module, wherein the safety control module is configured to monitor operating parameters of the fan motor and control the operation of the fan motor according to the operating parameters.

4. The explosion-proof fuel cell cooling fan according to claim 3, characterized in that: The operating parameters include the temperature, current and vibration frequency of the fan motor.

5. The explosion-proof fuel cell cooling fan according to claim 4, characterized in that: The safety control module is configured to cut off power supply when an abnormality is detected in the monitored operating parameters.

6. The explosion-proof fuel cell cooling fan according to claim 1, characterized in that: The non-combustible gas includes nitrogen and / or argon.

7. The explosion-proof fuel cell cooling fan according to claim 1, characterized in that: The moving blade has a root and a top opposite to each other and a trailing edge between the root and the top. The root of the moving blade is fixedly connected to a moving blade hub.

8. The explosion-proof fuel cell cooling fan according to claim 1, characterized in that: Also includes: The stationary impeller comprises a stationary impeller hub and a plurality of stationary blades arranged on the outer circumferential surface of the stationary impeller hub, wherein the stationary blades are configured to guide the airflow introduced by the moving blades.

9. The explosion-proof fuel cell cooling fan according to claim 8, characterized in that: The stationary blade has a root and a top that are opposite to each other, and the root of the stationary blade is fixedly connected to the stationary blade hub.

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