Protective top cover suitable for motor with mixed flow ventilation structure

Abstract

The utility model provides a protective top cover suitable for a motor with a mixed flow ventilation structure, which comprises a cover body and a bottom plate, and the inside of the cover body is divided into an air inlet chamber and an air outlet chamber by a main partition plate; a flow guide partition plate is arranged in the air inlet cavity and divides the air inlet cavity into a front air inlet space, an upper air inlet space and a rear air inlet space, and a louver for external air inlet is arranged on a side plate of the front air inlet space. A steel plate net and an inclined baffle are installed at an air outlet of the air outlet cavity, and the inclined baffle obliquely extends upwards from the position below the air outlet to the inner side of the air outlet cavity. According to the utility model, the air inlet chamber adopts the blind window and the zigzag air inlet space structure, and the air outlet of the air outlet chamber adopts the inclined baffle plate and the steel screen, so that water splashing in different directions can be borne, high-speed air and airborne particles are prevented from directly leading to the internal air path of the electrified part of the motor, and the I P24 protection grade is reached; and meanwhile, mechanical noise caused by a large fan of a mixed flow ventilation structure motor is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a protective top cover suitable for a motor with a mixed flow ventilation structure. Background Art

[0002] With the advancement of the national dual-carbon policy, the requirements for motor power density are constantly increasing. The mixed flow structure is adopted to improve the efficiency of ventilation and heat dissipation and improve the power density of the product. For the Y series motor, since the mixed flow ventilation structure uses a single large fan, in order to reduce the noise of the motor, a protective top cover structure must be adopted to reduce the product noise. The current protective top cover has a weak splash-proof function. In outdoor use environments, high-speed air, airborne particles, and splashing water directly lead to the internal air path of the live part of the motor, which will reduce the service life of the motor. Utility Model Content

[0003] In order to overcome the above-mentioned deficiencies of the prior art, the purpose of the utility model is to provide a protective top cover suitable for a motor with a mixed flow ventilation structure.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model to solve the technical problem is: a protective top cover suitable for a motor with a mixed flow ventilation structure, comprising a cover body and a bottom plate, the bottom of the cover body is fixedly connected to the bottom plate, and the cover body is divided into an air inlet chamber and an air outlet chamber by a main partition;

[0005] A guide baffle is provided in the air inlet chamber, and the guide baffle divides the air inlet chamber into a front air inlet space, an upper air inlet space and a rear air inlet space. The front air inlet space is located on a side of the guide baffle close to the main baffle, and the rear air inlet space is located on a side of the guide baffle away from the main baffle. The upper air inlet space is located above the front air inlet space and the rear air inlet space, and connects the front air inlet space and the rear air inlet space. Shutters for external air intake are provided on the side panels of the front air inlet space, and a through opening for passing the intake air into the tail end of the motor is provided on the bottom plate at the lower end of the rear air inlet space.

[0006] A through hole is provided on the bottom plate at the lower end of the air outlet chamber for passing the air outlet from the front end of the motor into the air outlet chamber, an air outlet is opened on the wall of the air outlet chamber opposite to the main partition plate, a steel plate mesh is installed at the air outlet, an oblique baffle is provided below the air outlet of the air outlet chamber, and the oblique baffle extends obliquely upward from below the air outlet to the inside of the air outlet chamber.

[0007] In the utility model, the air inlet chamber adopts shutters and a zigzag air inlet space structure, and the air outlet of the air outlet chamber adopts an oblique baffle and a steel mesh, which can withstand water splashing in different directions, prevent high-speed air and airborne particles from directly reaching the internal air path of the live part of the motor, and achieve the IP24 protection level; at the same time, reduce the mechanical noise caused by the large fan of the motor in the mixed flow ventilation structure.

[0008] Furthermore, the guide baffle includes a vertical portion, a horizontal extension portion and an upper bending portion, the lower end of the vertical portion is fixedly connected to the bottom plate, the horizontal extension portion extends horizontally forward from the top of the vertical portion, the horizontal extension portion is located above the shutter in the height direction, and the upper bending portion is bent upward from the front end of the horizontal extension portion.

[0009] By adopting the above preferred solution, the guide baffle has a simple structure and high structural strength, and can allow the incoming air to flow in a circuitous manner in the air inlet chamber, thereby reducing the amount of rain, snow and suspended particles entering the motor.

[0010] Furthermore, sound-absorbing cotton is attached to the inner wall of the air outlet chamber.

[0011] By adopting the above preferred solution, the ventilation noise of the motor is further reduced.

[0012] Furthermore, shutters are installed on the left and right panels of the front airflow space.

[0013] By adopting the above preferred solution, the air intake volume is increased and the heat dissipation efficiency of the motor is improved.

[0014] Furthermore, the angle between the oblique baffle and the vertical direction is 20-30°, and the length of the oblique baffle is greater than 1 / 2 of the opening length of the air outlet in the height direction.

[0015] By adopting the above preferred solution, the blocking effect of rain, snow and suspended particles at the air outlet is improved.

[0016] Furthermore, a plurality of lifting rings are fixedly connected to the outer wall of the cover body.

[0017] The above preferred solution is adopted to facilitate the hoisting of the cover body and improve the convenience of installation.

[0018] Furthermore, a connecting plate is provided on the bottom plate located outside the cover body, and the connecting plate is fixedly connected to the motor via a locking member.

[0019] The above preferred solution is adopted to facilitate the installation of the cover body and the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below 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 1It is a cross-sectional view of an implementation manner of the utility model.

[0022] Figure 2 It is a front view of an implementation manner of the utility model.

[0023] Figure 3 The utility model is a schematic diagram of the wind path when the protective top cover is installed on the motor.

[0024] The numbers and letters in the figure represent the names of the corresponding parts:

[0025] 10-hood; 20-bottom plate; 30-main partition; 40-air inlet chamber; 41-guide partition; 411-vertical portion; 412-horizontal extension portion; 413-upper bending portion; 42-front air inlet space; 43-upper air inlet space; 44-rear air inlet space; 45-louver; 50-air outlet chamber; 51-air outlet; 52-steel plate mesh; 53-oblique baffle; 54-silence cotton; 61-hanging ring; 62-connecting plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 1-3 As shown, one embodiment of the utility model is: a protective top cover suitable for a motor with a mixed flow ventilation structure, comprising a cover body 10 and a bottom plate 20, the bottom of the cover body 10 is fixedly connected to the bottom plate 20, and the cover body 10 is divided into an air inlet chamber 40 and an air outlet chamber 50 by a main partition plate 30;

[0028] A guide baffle 41 is provided in the air inlet chamber 40, and the guide baffle 41 divides the air inlet chamber 40 into a front air inlet space 42, an upper air inlet space 43 and a rear air inlet space 44. The front air inlet space 42 is located on a side of the guide baffle 41 close to the main baffle 30, and the rear air inlet space 44 is located on a side of the guide baffle 41 away from the main baffle. The upper air inlet space 43 is located above the front air inlet space 42 and the rear air inlet space 44, and connects the front air inlet space 42 and the rear air inlet space 44; a louver 45 for external air inlet is provided on the side plate of the front air inlet space 42, and a through opening for passing the air inlet into the tail end of the motor is provided on the bottom plate at the lower end of the rear air inlet space 44;

[0029] A through hole is provided on the bottom plate at the lower end of the air outlet chamber 50 for passing the air outlet from the front end of the motor into the air outlet chamber 50, an air outlet 51 is opened on the wall of the air outlet chamber 50 opposite to the main partition, a steel plate mesh 52 is installed at the air outlet 51, and an oblique baffle 53 is provided below the air outlet 51 of the air outlet chamber 50, and the oblique baffle 53 extends obliquely upward from below the air outlet 51 to the inner side of the air outlet chamber.

[0030] The beneficial effects of adopting the above technical solution are: the air inlet chamber adopts shutters and a zigzag air inlet space structure, and the air outlet of the air outlet chamber adopts an oblique baffle and a steel mesh, which can withstand splashing water from different directions, and prevent high-speed air and airborne particles from directly reaching the internal air path of the live part of the motor, achieving an IP24 protection level; at the same time, it reduces the mechanical noise caused by the large fan of the motor in the mixed flow ventilation structure.

[0031] like Figure 1 As shown, in some other embodiments of the utility model, the guide baffle 41 includes a vertical portion 411, a horizontal extension portion 412 and an upper bending portion 413, the lower end of the vertical portion 411 is fixedly connected to the bottom plate 20, the horizontal extension portion 412 extends horizontally forward from the top of the vertical portion 411, the horizontal extension portion 412 is located above the louver 45 in the height direction, and the upper bending portion 413 is bent upward from the front end of the horizontal extension portion 412. The beneficial effect of adopting the above technical solution is that the guide baffle includes a vertical portion, a horizontal extension portion and an upper bending portion, the lower end of the vertical portion is fixedly connected to the bottom plate, the horizontal extension portion extends horizontally forward from the top of the vertical portion, the horizontal extension portion is located above the louver in the height direction, and the upper bending portion is bent upward from the front end of the horizontal extension portion.

[0032] like Figure 1 As shown, in some other embodiments of the present invention, a sound-absorbing cotton 54 is attached to the inner wall of the air outlet chamber 50. The beneficial effect of adopting the above technical solution is: the ventilation noise of the motor is further reduced.

[0033] In some other embodiments of the present invention, shutters 45 are installed on both the left and right panels of the front airflow space 42. The beneficial effect of the above technical solution is that shutters are installed on both the left and right panels of the front airflow space.

[0034] like Figure 1 As shown, in some other embodiments of the present invention, the angle between the oblique baffle 53 and the vertical direction is 20-30 degrees, and the length of the oblique baffle 53 is greater than 1 / 2 of the opening length of the air outlet 51 in the height direction. The beneficial effect of adopting the above technical solution is to improve the blocking effect of rain, snow and suspended particles at the air outlet.

[0035] like Figure 2As shown, in some other embodiments of the present invention, a plurality of lifting rings 61 are fixedly connected to the outer wall of the cover body 10. The beneficial effect of adopting the above technical solution is: it is convenient to lift the cover body and improve the convenience of installation.

[0036] like Figure 2 As shown, in some other embodiments of the present invention, a connecting plate 62 is provided on the bottom plate outside the cover 10, and the connecting plate 62 is fixedly connected to the top of the motor via a locking member. The beneficial effect of adopting the above technical solution is that the cover and the motor can be easily installed.

[0037] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable ordinary technicians in the field to understand the content of the utility model and implement it. They cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A protective top cover suitable for a motor with a mixed flow ventilation structure, characterized in that: It includes a cover body and a bottom plate, the bottom of the cover body is fixedly connected to the bottom plate, and the cover body is divided into an air inlet chamber and an air outlet chamber by a main partition; A guide baffle is provided in the air inlet chamber, and the guide baffle divides the air inlet chamber into a front air inlet space, an upper air inlet space and a rear air inlet space. The front air inlet space is located on a side of the guide baffle close to the main baffle, and the rear air inlet space is located on a side of the guide baffle away from the main baffle. The upper air inlet space is located above the front air inlet space and the rear air inlet space, and connects the front air inlet space and the rear air inlet space. Shutters for external air intake are provided on the side panels of the front air inlet space, and a through opening for passing the intake air into the tail end of the motor is provided on the bottom plate at the lower end of the rear air inlet space. A through hole is provided on the bottom plate at the lower end of the air outlet chamber for passing the air outlet from the front end of the motor into the air outlet chamber, an air outlet is opened on the wall of the air outlet chamber opposite to the main partition plate, a steel plate mesh is installed at the air outlet, an oblique baffle is provided below the air outlet of the air outlet chamber, and the oblique baffle extends obliquely upward from below the air outlet to the inside of the air outlet chamber.

2. The protective top cover suitable for the motor with mixed flow ventilation structure according to claim 1 is characterized in that: The guide baffle includes a vertical portion, a horizontal extension portion and an upper bending portion, the lower end of the vertical portion is fixedly connected to the bottom plate, the horizontal extension portion extends horizontally forward from the top of the vertical portion, the horizontal extension portion is located above the shutter in the height direction, and the upper bending portion is bent upward from the front end of the horizontal extension portion.

3. The protective top cover suitable for the motor with mixed flow ventilation structure according to claim 2 is characterized in that: Shutters are installed on the left side plate and the right side plate of the front air flow space.

4. The protective top cover suitable for the motor with mixed flow ventilation structure according to claim 1, characterized in that: The inner wall of the air outlet chamber is provided with sound-absorbing cotton.

5. The protective top cover suitable for the motor with mixed flow ventilation structure according to claim 4, characterized in that: The included angle between the oblique baffle and the vertical direction is 20-30°, and the length of the oblique baffle is greater than 1 / 2 of the opening length of the air outlet in the height direction.

6. The protective top cover suitable for the motor with mixed flow ventilation structure according to claim 1, characterized in that: A plurality of hanging rings are fixedly connected to the outer wall of the cover body.

7. The protective top cover suitable for the motor with mixed flow ventilation structure according to claim 6, characterized in that: A connecting plate is provided on the bottom plate located outside the cover body, and the connecting plate is fixedly connected to the motor via a locking piece.

Images