Cooling fan detection device and server

Abstract

The utility model relates to a heat dissipation fan detection device and a server, belonging to the heat dissipation equipment technology field, the heat dissipation fan detection device comprises a heat dissipation fan body, the heat dissipation fan body comprises fan blades, a motor electromagnet driving the fan blades to rotate and a motor housing bearing the motor electromagnet, a rotor of the motor electromagnet is provided with a cam, and the motor housing is provided with a motor. One side of the cam is provided with a piezoelectric material capable of shielding the cam, and the piezoelectric material is installed on the motor shell; the piezoelectric material channel is electrically connected with an LED lamp which is started and stopped synchronously with the cooling fan body through a wire. The motor electromagnetism driving the fan blades to rotate is in linkage with the cam, the cam continuously impacts the piezoelectric material, the piezoelectric material can convert mechanical energy into electric energy, and therefore the LED lamp is lightened. According to the scheme, power is directly supplied to the LED lamp through the cooling fan body, the failure rate is reduced, and the problem that the misjudgment rate is high is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat dissipation equipment, in particular to a heat dissipation fan detection device and a server. Background Art

[0002] With the advent of the era of artificial intelligence, the server field continues to expand, and the performance of CPUs is also increasing year by year. However, as the performance improves, the power consumption of the server also increases accordingly, especially when the CPU is operating, which generates high temperatures. To maintain the stable operation of the server, an effective heat dissipation system becomes crucial. At present, the mainstream heat dissipation method is to use fans to guide the airflow to the heat sink on the CPU for cooling. Once the fan stops running, the temperature of the CPU will continue to rise. When a certain temperature is reached, the server will start a protection mechanism to reduce the operating frequency of the CPU or even shut down the server to protect the entire system from high temperature.

[0003] Most server failures or performance degradation are often caused by the cooling fan stopping and causing the system to overheat. Currently, the main method to determine whether the fan is running is to log in to the server's BMC and use IPMI commands to read the SDR to obtain fan status and speed information. This can be done In-Band (execute IPMI commands after logging in to the local OS) or Out-Of-Band (call SDR information through a browser or terminal on another host).

[0004] There is another way to detect whether the fan is in operation: by observing whether the LED light connected in parallel with the cooling fan on the power module is on, you can directly determine whether the cooling fan is in operation. Since the LED light and the cooling fan in this detection method are powered by the power module respectively, if any circuit fails, it is impossible to determine whether the cooling fan is running, resulting in a high failure rate and misjudgment rate in this detection method. Utility Model Content

[0005] In order to solve the problem of high failure rate and misjudgment rate in judging the cooling fan by LED lights in the prior art, the utility model provides a cooling fan detection device and server which are helpful to reduce the detection failure rate and misjudgment rate.

[0006] The utility model is realized by the following technical solutions:

[0007] A heat dissipation fan detection device comprises a heat dissipation fan body, the heat dissipation fan body comprises fan blades, a motor electromagnetic driving the fan blades to rotate and a motor housing carrying the motor electromagnetic, a cam is arranged on a rotor of the motor electromagnetic, a piezoelectric material capable of shielding the cam is arranged on one side of the cam, and the piezoelectric material is mounted on the motor housing;

[0008] The piezoelectric material channel wire is electrically connected to an LED lamp which starts and stops synchronously with the heat dissipation fan body.

[0009] The motor electromagnetically drives the fan blades to rotate, and the cam continuously impacts the piezoelectric material, which can convert mechanical energy into electrical energy, thereby lighting up the LED lamp. In this case, the LED lamp is powered directly by the cooling fan body, which helps to reduce the high failure rate and misjudgment rate.

[0010] A further improvement of the utility model is that the piezoelectric material is installed in the motor housing, which helps to protect the piezoelectric material through the motor housing and improve the stability of the cooperation between the cam and the piezoelectric material.

[0011] A further improvement of the utility model is that the piezoelectric material is arranged on a side of the motor electromagnetically facing away from the fan blades.

[0012] A further improvement of the utility model is that the cam comprises a cylinder coaxially arranged on the rotor, the cylinder is provided with a first protrusion; the piezoelectric material is a circular ring, and the inner wall of the piezoelectric material is provided with a second protrusion matching with the first protrusion.

[0013] A further improvement of the utility model is that the protrusion 1 and the protrusion 2 are both fan-shaped structures, which helps to reduce the relative friction resistance between the protrusion 1 and the protrusion 2 while achieving the collision, thereby ensuring the passability of the protrusion 1.

[0014] A further improvement of the utility model is that the first protrusion is evenly and spaced apart on the cylinder; the second protrusion is evenly and spaced apart on the piezoelectric material, which helps to improve the continuity of the piezoelectric material converting mechanical energy into electrical energy to power the LED lamp after being impacted.

[0015] A further improvement of the utility model is that the piezoelectric material is a composite material formed by combining ceramics and quartz.

[0016] A server comprises a chassis shell, wherein a heat dissipation fan detection device is arranged in the chassis shell.

[0017] A further improvement of the utility model is that the LED lamp is arranged on the front panel of the chassis shell.

[0018] A further improvement of the utility model is that a mounting hole for embedding the LED lamp is provided on the front panel of the chassis shell, so as to facilitate direct observation of the LED lamp.

[0019] It can be seen from the above technical scheme that the beneficial effects of the utility model are: the motor electromagnetically drives the fan blades to rotate and links the cam, the cam continuously impacts the piezoelectric material, and the piezoelectric material can convert mechanical energy into electrical energy, thereby lighting up the LED lamp; in this case, the LED lamp is directly powered by the heat dissipation fan body, which helps to reduce the high failure rate and misjudgment rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic cross-sectional structure diagram of a specific implementation method of the utility model.

[0022] Figure 2 It is a schematic diagram of the combination of a cam and a piezoelectric material according to a specific implementation manner of the utility model.

[0023] Figure 3 This is a circuit diagram of a piezoelectric material and an LED lamp according to a specific implementation of the utility model.

[0024] In the attached drawings: 1. cooling fan body; 11. fan blades; 12. motor housing; 13. motor electromagnet; 131. rotor; 2. piezoelectric material; 21. cylinder; 22. raised portion 1; 3. cam; 31. annular body; 32. raised portion 2; 4. LED light. DETAILED DESCRIPTION

[0025] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0026] As attached Figure 1As shown, a server includes a chassis housing, wherein a cooling fan detection device is provided in the chassis housing. The cooling fan detection device includes a cooling fan body 1, wherein the cooling fan body 1 includes a fan blade 11, a motor electromagnet 13 driving the fan blade 11 to rotate, and a motor housing 12 carrying the motor electromagnet 13. A cam 3 is provided on a rotor 131 of the motor electromagnet 13, and a piezoelectric material 2 capable of shielding the cam 3 is provided on one side of the cam 3, and the piezoelectric material 2 is installed on the motor housing 12. The piezoelectric material 2 is a composite material body formed by combining ceramic and quartz.

[0027] As attached Figure 1-2 As shown, the piezoelectric material 2 is installed in the motor housing 12; the piezoelectric material 2 is arranged on the side of the motor electromagnetic 13 away from the fan blade 11. It is helpful to protect the piezoelectric material 2 through the motor housing 12 to improve the stability of the cooperation between the cam 3 and the piezoelectric material 2.

[0028] As attached Figure 2 As shown, the cam 3 includes a cylinder 21 coaxially arranged on the rotor 131, and a protrusion 22 is arranged on the cylinder 21; the protrusion 22 is evenly and spacedly arranged on the cylinder 21. The piezoelectric material 2 is a ring 31, and a protrusion 32 matching the protrusion 22 is arranged on the inner wall of the piezoelectric material 2; the protrusion 32 is evenly and spacedly arranged on the piezoelectric material 2. It helps to improve the continuity of the piezoelectric material 2 converting mechanical energy into electrical energy to power the LED lamp 4 after being hit.

[0029] The protrusion 1 22 and the protrusion 2 32 are both fan-shaped structures. While achieving the collision, it helps to reduce the relative friction resistance between the protrusion 1 22 and the protrusion 2 32, and ensures the passability of the protrusion 1 22.

[0030] As attached Figure 3 As shown, the piezoelectric material 2 channel wire is electrically connected to an LED lamp 4 which starts and stops synchronously with the heat dissipation fan body 1 .

[0031] The LED lamp 4 is arranged on the front panel of the chassis housing; and an assembly hole for embedding the LED lamp 4 is provided on the front panel of the chassis housing, so as to facilitate direct observation of the LED lamp 4.

[0032] The utility model describes a cooling fan detection device and server, in which the motor electromagnetic 13 driving the fan blades 11 to rotate is linked to the cam 3, and the cam 3 continuously impacts the piezoelectric material 2. The piezoelectric material 2 can convert mechanical energy into electrical energy, thereby lighting up the LED lamp 4. In this case, the LED lamp 4 is directly powered by the cooling fan body 1, which helps to reduce the problem of high failure rate and misjudgment rate.

[0033] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0034] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0035] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cooling fan detection device, comprising a cooling fan body (1), wherein the cooling fan body (1) comprises a fan blade (11), a motor electromagnet (13) for driving the fan blade (11) to rotate, and a motor housing (12) for carrying the motor electromagnet (13), characterized in that: A cam (3) is provided on the rotor (131) of the motor electromagnetic (13); a piezoelectric material (2) capable of shielding the cam (3) is provided on one side of the cam (3); the piezoelectric material (2) is mounted on the motor housing (12); a channel wire of the piezoelectric material (2) is electrically connected to an LED lamp (4) that is started and stopped synchronously with the heat dissipation fan body (1); the cam (3) comprises a cylinder (21) coaxially arranged on the rotor (131); a protrusion 1 (22) is provided on the cylinder (21); the piezoelectric material (2) is a circular ring (31), and a protrusion 2 (32) matching with the protrusion 1 (22) is provided on the inner wall of the piezoelectric material (2); the protrusion 1 (22) and the protrusion 2 (32) are both fan-shaped structures; the protrusion 1 (22) is evenly and spaced on the cylinder (21); the protrusion 2 (32) is evenly and spaced on the piezoelectric material (2).

2. A cooling fan detection device according to claim 1, characterized in that: The piezoelectric material (2) is installed in the motor housing (12).

3. A cooling fan detection device according to claim 2, characterized in that: The piezoelectric material (2) is arranged on a side of the motor electromagnet (13) facing away from the fan blade (11).

4. A server, comprising a chassis housing, characterized in that: The cooling fan detection device as claimed in claim 3 is arranged in the chassis shell.

5. A server according to claim 4, characterized in that: The LED lamp (4) is arranged on the front panel of the chassis shell.

6. A server according to claim 5, characterized in that: The front panel of the chassis shell is provided with an assembly hole for embedding an LED lamp (4).

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