Permanent magnet rack convenient for heat dissipation

Abstract

The utility model provides a permanent magnet rack convenient for heat dissipation, which comprises a rack, a cold cavity, a middle cavity and a hot cavity are arranged in the rack, the cold cavity and the hot cavity are fixedly arranged on two opposite sides of the middle cavity, at least one air inlet is arranged in the cold cavity, at least one air outlet is arranged in the hot cavity, and the air inlet and the air outlet are communicated with each other. The cold cavity, the middle cavity and the hot cavity are communicated in sequence; a centrifugal fan and a hot air exhaust duct are fixedly arranged in the middle cavity, the hot air exhaust duct is fixedly arranged above the centrifugal fan, and the output end of the centrifugal fan and the input end of the hot cavity are communicated with the hot air exhaust duct. According to the utility model, the air inlet, the air outlet and the like are formed in the permanent magnet rack, and the air duct in the permanent magnet rack is set and adjusted, so that the heat dissipation of related parts and equipment in the permanent magnet rack is completed, and compared with a conventional heat dissipation mode, the adjusted heat dissipation air duct is higher in heat dissipation efficiency and reasonable in arrangement.

Description

TECHNICAL FIELD

[0001] The utility model relates to permanent magnet machine heat dissipation technical field especially, it is a kind of permanent magnet machine frame convenient to dissipate heat. BACKGROUND

[0002] The present application is searched by the inventor, and it is found that the existing device still has some defects, for example, Chinese patent publication No.CN214900445U, published on November 26, 2021, discloses a protective shell for permanent magnet synchronous motor, which comprises a base, a first shell body is slidably connected to the top of the base, by providing the first shell body and the second shell body, the motor body is protected, the second bolt and the clamping block are provided, which facilitates the installation and removal of the first shell body, the protective plate and the second spring are provided, which reduces the impact force generated by impact, thereby protecting the motor body from damage, the semiconductor refrigeration sheet and the fan are provided, the generated cold air cools the motor body, the cooling pipe is provided to absorb the heat generated by the motor body, and the working efficiency and service life of the motor are improved.

[0003] However, the device is additionally attached to the outside of the motor body, which increases the overall volume of the motor body, making it more inconvenient to use. In addition, the motor often has a heat dissipation hole, and when the motor is in use, there are flocculent substances similar to spider webs attached to the heat dissipation hole. When the flocculent substances enter the motor, they will adhere to some electrical components, affecting the heat dissipation of the motor and thus affecting the service life of the motor. The additional cooling equipment inevitably causes noise problems due to its heat dissipation function during use. UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art. The utility model provides a permanent magnet machine frame convenient for heat dissipation, which ensures the heat dissipation efficiency of the permanent magnet machine equipment without adding additional heat dissipation equipment, and has the characteristics of low noise.

[0005] To solve the above technical problems, the utility model adopts the technical scheme of a permanent magnet machine frame convenient for heat dissipation, characterized by comprising a rack, a cold cavity, an intermediate cavity and a hot cavity are arranged in the rack, the cold cavity and the hot cavity are fixedly arranged on opposite sides of the intermediate cavity,

[0006] At least one air inlet is arranged in the cold cavity, and at least one air outlet is arranged in the hot cavity, and the cold cavity, the intermediate cavity and the hot cavity are sequentially communicated.

[0007] A centrifugal fan and a heat exhaust air duct are fixedly arranged in the intermediate cavity, the heat exhaust air duct is fixedly arranged above the centrifugal fan, and the output end of the centrifugal fan and the input end of the hot cavity are communicated with the heat exhaust air duct.

[0008] Further, a first air inlet is arranged at the bottom of the cold cavity, and a cold air outlet is fixedly arranged on the side of the cold cavity facing the intermediate cavity

[0009] Further, at least one first auxiliary air inlet is arranged on the side wall of the cold cavity.

[0010] Further, a guard plate is fixedly arranged outside the rack, a second auxiliary air inlet is arranged on the guard plate, the second auxiliary air inlet corresponds to the first auxiliary air inlet in position, and the second auxiliary air inlet communicates with the upper part of the rack.

[0011] Further, a power heat dissipation port is further arranged at the bottom of the rack, and the power heat dissipation port is located on the lower side of the intermediate cavity and corresponds to the position of the centrifugal fan.

[0012] Compared with the prior art, the beneficial effects of the present application include:

[0013] 1) By arranging air inlets and air outlets in the permanent magnet rack, the internal air duct is adjusted, thereby achieving heat dissipation of the internal components and equipment, and the adjusted heat dissipation air duct has higher heat dissipation efficiency and reasonable heat dissipation air duct arrangement.

[0014] 2) The air inlet is arranged on both sides to effectively avoid air intake on both sides of the permanent magnet rack, thereby effectively reducing the noise generated during air intake and having good noise reduction effect. BRIEF DESCRIPTION OF DRAWINGS

[0015] The disclosure of the present application will be described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes, and are not intended to limit the scope of protection of the present application. In the drawings, the same reference numerals are used to refer to the same parts. Among them:

[0016] Figure 1 The front structure of the permanent magnet rack facilitating heat dissipation is schematically shown;

[0017] Figure 2 The overall structure of the permanent magnet rack facilitating heat dissipation is schematically shown;

[0018] Figure 3 The bottom structure of the permanent magnet rack facilitating heat dissipation is schematically shown.

[0019] Reference numerals in the drawings: 1-cold cavity, 2-intermediate cavity, 3-hot cavity, 4-centrifugal fan, 5-heat dissipation air duct, 6-first air inlet, 7-first auxiliary air inlet, 8-second auxiliary air inlet, 9-power heat dissipation port. DETAILED DESCRIPTION

[0020] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural methods and implementation methods. Therefore, the following specific embodiments and drawings are only illustrative of the technical solution of the present invention and should not be regarded as the entire present invention or as a limitation or restriction of the technical solution of the present invention.

[0021] like Figure 1 As shown, a permanent magnet rack that is convenient for heat dissipation includes a rack, wherein the internal space of the rack is divided into a cold chamber 1, an intermediate chamber 2, and a hot chamber 3 according to function. The aforementioned cold chamber 1 and hot chamber 3 are fixedly arranged on opposite sides of the intermediate chamber 2. At least one air inlet is provided in the aforementioned cold chamber 1, and an air outlet is provided in the hot chamber 3. The aforementioned cold chamber 1, the intermediate chamber 2, and the hot chamber 3 are connected in sequence. Air is introduced into the cold chamber 1, and then the cold air entering from the cold chamber 1 is sucked into the intermediate chamber 2 as the permanent magnet machine heat dissipation outlet fixed therein, and the hot air with a higher temperature is discharged through the hot chamber 3.

[0022] In order to ensure that the discharge of hot air does not affect the heat dissipation process of the intermediate cavity 2, a centrifugal fan 4 and a heat exhaust duct 5 are fixedly arranged in the intermediate cavity 2. The heat exhaust duct 5 is fixedly arranged above the centrifugal fan 4. The output end of the centrifugal fan 4 and the input end of the heat cavity 3 are connected to the heat exhaust duct 5. The cold air that has completed the heat exchange process through the intermediate cavity 2 is sucked into the heat exhaust duct 5 through the centrifugal fan 4, and then uniformly discharged through the heat cavity 3.

[0023] It is worth noting that a first air inlet 6 is provided at the bottom of the cold chamber 1, i.e., the air inlet provided in the cold chamber 1 is bottom air inlet, and a cold air outlet is fixedly provided on the side of the cold chamber 1 facing the middle chamber 2, so that the cold air in the cold chamber 1 can enter the middle chamber 2. By providing the air inlet at the bottom, i.e., the bottom air inlet method, it is possible to avoid providing the air inlet at both sides, thereby avoiding convection caused by the air inlet on both sides, thereby reducing the noise of the air inlet, and having a good noise reduction effect.

[0024] like Figure 2 As shown, in order to avoid insufficient air intake in the cold chamber 1, at least one first auxiliary air inlet 7 is provided on the side wall of the cold chamber 1. The first auxiliary air inlet 7 is connected to the aforementioned first air inlet 6 through a rack and can be completed in a sandwich manner, thereby avoiding the situation where the air intake of a single first air inlet 6 is insufficient. The air intake is supplemented by the first auxiliary air inlet 7, and the air intake is also not completed on both sides of the rack, thereby ensuring the overall noise reduction effect.

[0025] Furthermore, a guard plate is fixedly provided on the outer side of the frame, and a second auxiliary air inlet 8 is opened on the guard plate. The second auxiliary air inlet 8 corresponds to the position of the first auxiliary air inlet 7, but the second auxiliary air inlet 8 is connected to the upper part of the frame, which is used to complete the connection with the upper part of the frame and complete the air intake through the aforementioned first auxiliary air inlet 7, thereby greatly increasing the air intake volume of the first air inlet 6.

[0026] It should be noted that if Figure 3 As shown, a power heat dissipation port 9 is also provided at the bottom of the frame, which is located on the lower side of the middle paint and corresponds to the position of the centrifugal fan 4. The air is introduced into the middle cavity 2 and the heat dissipation process of the permanent magnet motor is assisted.

[0027] The technical scope of the present invention is not limited to the contents described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical concept of the present invention, and these deformations and modifications should all fall within the scope of protection of the present invention.

Claims

1. A permanent magnet rack that is easy to dissipate heat, characterized in that: The invention comprises a frame, wherein a cold chamber (1), an intermediate chamber (2) and a hot chamber (3) are arranged in the frame, wherein the cold chamber (1) and the hot chamber (3) are fixedly arranged on opposite sides of the intermediate chamber (2). At least one air inlet is provided in the cold chamber (1), at least one air outlet is provided in the hot chamber (3), and the cold chamber (1), the intermediate chamber (2) and the hot chamber (3) are connected in sequence; A centrifugal fan (4) and a heat exhaust duct (5) are fixedly arranged in the intermediate cavity (2); the heat exhaust duct (5) is fixedly arranged above the centrifugal fan (4); the output end of the centrifugal fan (4) and the input end of the heat cavity (3) are in communication with the heat exhaust duct (5).

2. The permanent magnet rack for facilitating heat dissipation according to claim 1, characterized in that: A first air inlet (6) is provided at the bottom of the cold chamber (1), and a cold air outlet is fixedly provided on the side of the cold chamber (1) facing the intermediate chamber (2).

3. The permanent magnet rack for facilitating heat dissipation according to claim 2, characterized in that: At least one first auxiliary air inlet (7) is provided on the side wall of the cold chamber (1).

4. The permanent magnet rack for facilitating heat dissipation according to claim 3, characterized in that: A guard plate is fixedly provided on the outer side of the frame, and a second auxiliary air inlet (8) is provided on the guard plate. The second auxiliary air inlet (8) corresponds to the position of the first auxiliary air inlet (7), and the second auxiliary air inlet (8) is communicated with the upper part of the frame.

5. The permanent magnet rack for facilitating heat dissipation according to claim 1, characterized in that: At The bottom of the frame is also provided with a power heat dissipation port (9), which is located at the lower side of the middle cavity (2) and corresponds to the position of the centrifugal fan (4).

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