Brushless direct current driver

Abstract

The brushless direct current driver comprises a brushless direct current driver body, a heat dissipation fin plate is fixedly installed on the outer surface of the lower end of the brushless direct current driver body, and lug plates are fixedly installed at one ends of the outer surfaces of the two sides of the brushless direct current driver body. A heat dissipation assembly is fixedly mounted on the outer surface of one end of the heat dissipation fin plate, an anti-loosening structure is arranged in the middle of the outer surface of one side of the lug plate, the heat dissipation assembly comprises an air guide box, a heat dissipation fan and an air outlet, and the anti-loosening structure comprises a fixed block, a second limiting ring, a mounting cavity, a guide ring, a movable rod, a limiting block, a belleville spring and a limiting column. A limiting through groove is formed in the middle of the outer surface of one side of each lug plate. According to the brushless DC driver of the utility model, through the arrangement of the anti-loosening structure, loosening after bolt installation can be eliminated, the installation stability can be improved, and through the arrangement of the heat dissipation assembly, the flow speed of air between the heat dissipation fin plates can be improved, and the heat dissipation efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of brushless DC drivers, in particular to a brushless DC driver. Background Art

[0002] The brushless DC drive is one of the key components in the field of motor control. The performance of the drive directly determines the performance and characteristics of the entire motor system.

[0003] The brushless DC driver in the prior art generates a lot of heat when in use. In order to ensure the normal operation of the brushless DC driver in the prior art, a heat dissipation fin plate is generally fixedly installed on the outer surface of the lower end of the brushless DC driver, and heat is dissipated through the heat dissipation fin plate, but the heat dissipation efficiency is low; and after the brushless DC driver in the prior art is installed by bolts, the bolts loosen and become loose. For this reason, we propose a brushless DC driver. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a brushless DC driver, which has the advantages of high heat dissipation efficiency and more stable installation, and can effectively solve the problems in the background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a brushless DC driver, including a brushless DC driver body, a heat dissipation fin plate is fixedly installed on the outer surface of the lower end of the brushless DC driver body, an ear plate is fixedly installed on one end of the outer surface of both sides of the brushless DC driver body, a heat dissipation component is fixedly installed on the outer surface of one end of the heat dissipation fin plate, an anti-loosening structure is arranged in the middle of the outer surface of one side of the ear plate, the heat dissipation component includes an air guide box, a heat dissipation fan and an air outlet, the anti-loosening structure includes a fixed block, a second limiting ring, an installation cavity, a guide ring, a movable rod, a limiting block, a disc spring and a limiting column, a limiting through groove is arranged in the middle of the outer surface of one side of the ear plate, and a first limiting ring is fixedly installed on one end of the limiting through groove.

[0008] Preferably, the air guide box is fixedly mounted on an outer surface of one end of the heat dissipation fin plate, and the heat dissipation fan is fixedly mounted on an outer surface of one end of the air guide box.

[0009] Preferably, the air outlet is opened on an outer surface of one side of the air guide box, and the air outlet is connected to the inner cavity of the air guide box.

[0010] Preferably, the fixed block passes through the limiting groove, the second limiting ring is located on one side of the first limiting ring, and the second limiting ring is fixedly installed on the outer wall of one end of the fixed block, the installation cavity is opened inside one end of the fixed block, the guide ring is fixedly installed in the middle of the outer surface of one end of the fixed block, the inner cavity of the guide ring is connected with the installation cavity, and the limiting block, disc spring and limiting column are all located in the installation cavity.

[0011] Preferably, the movable rod passes through the guide ring, and the outer wall of the movable rod is slidably connected to the inner wall of the guide ring. The outer surface of one end of the movable rod is fixedly connected to the middle part of the outer surface of one side of the limit block, and the disc spring is fixedly installed between the middle part of the outer surface of the other side of the limit block and the middle part of one end of the installation cavity, and the limit column is fixedly installed at one end on the left and right sides of the installation cavity.

[0012] Preferably, an outer surface of one side of the limit block is elastically connected to one end of the installation cavity via a disc spring.

[0013] Three beneficial effects

[0014] Compared with the prior art, the utility model provides a brushless DC driver, which has the following beneficial effects:

[0015] 1. The brushless DC driver can eliminate the loosening of bolts after installation and improve the stability of installation by setting an anti-loosening structure.

[0016] 2. The brushless DC driver, by providing a heat dissipation component, is convenient for increasing the flow speed of air between the fin plates in the heat dissipation fin plate, thereby improving the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a schematic diagram of the overall structure of the brushless DC driver of the present utility model.

[0018] Figure 2 It is a partial structural schematic diagram of the brushless DC driver of the utility model.

[0019] Figure 3 The utility model is a schematic diagram of the structure of the heat dissipation component in the brushless DC driver.

[0020] Figure 4 The figure is a schematic diagram of the anti-loosening structure in the brushless DC driver of the utility model.

[0021] Figure 5 It is a top cross-sectional view of the anti-loosening structure in the brushless DC driver of the utility model.

[0022] In the figure: 1. Brushless DC driver body; 2. Ear plate; 3. Anti-loosening structure; 4. Heat dissipation fin plate; 5. Heat dissipation component; 6. Limiting groove; 7. First limiting ring; 8. Air guide box; 9. Cooling fan; 10. Air outlet; 11. Fixed block; 12. Second limiting ring; 13. Installation cavity; 14. Guide ring; 15. Movable rod; 16. Limiting block; 17. Disc spring; 18. Limiting column. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] This embodiment is a brushless DC drive.

[0025] like Figure 1-5 As shown, it includes a brushless DC driver body 1, a heat dissipation fin plate 4 is fixedly installed on the outer surface of the lower end of the brushless DC driver body 1, an ear plate 2 is fixedly installed on one end of the outer surface of both sides of the brushless DC driver body 1, a heat dissipation component 5 is fixedly installed on the outer surface of one end of the heat dissipation fin plate 4, an anti-loosening structure 3 is arranged in the middle of the outer surface of one side of the ear plate 2, the heat dissipation component 5 includes an air guide box 8, a heat dissipation fan 9 and an air outlet 10, the anti-loosening structure 3 includes a fixed block 11, a second limiting ring 12, an installation cavity 13, a guide ring 14, a movable rod 15, a limiting block 16, a disc spring 17 and a limiting column 18, a limiting through groove 6 is provided in the middle of the outer surface of one side of the ear plate 2, and a first limiting ring 7 is fixedly installed on one end of the limiting through groove 6.

[0026] The air guide box 8 is fixedly installed on the outer surface of one end of the heat dissipation fin plate 4, and the heat dissipation fan 9 is fixedly installed on the outer surface of one end of the air guide box 8; the air outlet 10 is opened on the outer surface of one side of the air guide box 8, and the air outlet 10 is connected with the inner cavity of the air guide box 8; the fixed block 11 passes through the limiting groove 6, the second limiting ring 12 is located on one side of the first limiting ring 7, and the second limiting ring 12 is fixedly installed on the outer wall of one end of the fixed block 11, the installation cavity 13 is opened inside one end of the fixed block 11, and the guide ring 14 is fixedly installed in the middle of the outer surface of one end of the fixed block 11, and the inner cavity of the guide ring 14 is connected with the installation cavity 13 The limit block 16, disc spring 17 and limit column 18 are all located in the installation cavity 13; the movable rod 15 passes through the guide ring 14, and the outer wall of the movable rod 15 is slidably connected to the inner wall of the guide ring 14. The outer surface of one end of the movable rod 15 is fixedly connected to the middle part of the outer surface of one side of the limit block 16, and the disc spring 17 is fixedly installed between the middle part of the outer surface of the other side of the limit block 16 and the middle part of one end of the installation cavity 13. The limit column 18 is fixedly installed at one end on the left and right sides of the installation cavity 13; the outer surface of one side of the limit block 16 is elastically connected to one end of the installation cavity 13 through the disc spring 17.

[0027] It should be noted that the utility model is a brushless DC driver. The brushless DC driver body 1, ear plate 2 and heat dissipation fin plate 4 in the text belong to the prior art, which can be effectively known to the technicians in the relevant technical field, and the details are not repeated here; a heat dissipation component 5 is set, and the heat dissipation component 5 is fixed at one end of the heat dissipation fin plate 4. The number of air outlets 10 is multiple groups, and the air outlets 10 are located at one end between the fin plates in the heat dissipation fin plate 4. Through the operation of the heat dissipation fan 9, it is convenient to increase the flow speed of air between the fin plates in the heat dissipation fin plate 4, thereby improving the heat dissipation efficiency; an anti-loosening structure 3 is set, and after the ear plate 2 is fixed to the frame by fixing bolts The movable rod 15 is squeezed to slide along the guide ring 14, and the movable rod 15 drives the limiting block 16 to squeeze the disc spring 17 in the installation cavity 13, so that one end of the movable rod 15 enters the guide ring 14. When the installation is completed, the disc spring 17 is in a squeezed state. The disc spring 17 can eliminate the looseness after the bolt connection, and the limiting column 18 can be used to limit the position of the limiting block 16. When installing the anti-loosening structure 3, it is only necessary to pass the fixing block 11 through the limiting groove 6, and limit it through the second limiting ring 12 and the first limiting ring 7, so as to complete the installation of the anti-loosening structure 3, which is very convenient.

[0028] It should be noted that, in this article, relational terms such as first and second (number one, number two), etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A brushless DC driver, comprising a brushless DC driver body (1), a heat dissipation fin plate (4) being fixedly mounted on the outer surface of the lower end of the brushless DC driver body (1), and ear plates (2) being fixedly mounted on one end of the outer surfaces of both sides of the brushless DC driver body (1), characterized in that: A heat dissipation component (5) is fixedly mounted on the outer surface of one end of the heat dissipation fin plate (4); an anti-loosening structure (3) is arranged in the middle of the outer surface of one side of the ear plate (2); the heat dissipation component (5) comprises an air guide box (8), a heat dissipation fan (9) and an air outlet (10); the anti-loosening structure (3) comprises a fixed block (11), a second limiting ring (12), an installation cavity (13), a guide ring (14), a movable rod (15), a limiting block (16), a disc spring (17) and a limiting column (18); a limiting through groove (6) is arranged in the middle of the outer surface of one side of the ear plate (2); a first limiting ring (7) is fixedly mounted on one end of the limiting through groove (6).

2. The brushless DC driver according to claim 1, characterized in that: The air guide box (8) is fixedly mounted on the outer surface of one end of the heat dissipation fin plate (4), and the heat dissipation fan (9) is fixedly mounted on the outer surface of one end of the air guide box (8).

3. The brushless DC driver according to claim 2, characterized in that: The air outlet (10) is provided on an outer surface of one side of the air guide box (8), and the air outlet (10) is communicated with the inner cavity of the air guide box (8).

4. The brushless DC driver according to claim 3, characterized in that: The fixed block (11) passes through the limiting groove (6); the second limiting ring (12) is located on one side of the first limiting ring (7), and the second limiting ring (12) is fixedly installed on the outer wall of one end of the fixed block (11); the installation cavity (13) is opened inside the one end of the fixed block (11); the guide ring (14) is fixedly installed in the middle of the outer surface of one end of the fixed block (11); the inner cavity of the guide ring (14) is connected to the installation cavity (13); the limiting block (16), the disc spring (17) and the limiting column (18) are all located in the installation cavity (13).

5. The brushless DC driver according to claim 4, characterized in that: The movable rod (15) passes through the guide ring (14), and the outer wall of the movable rod (15) is slidably connected to the inner wall of the guide ring (14). The outer surface of one end of the movable rod (15) is fixedly connected to the middle of the outer surface of one side of the limit block (16). The disc spring (17) is fixedly installed between the middle of the outer surface of the other side of the limit block (16) and the middle of one end of the installation cavity (13). The limit column (18) is fixedly installed at one end of the left and right sides of the installation cavity (13).

6. The brushless DC driver according to claim 5, characterized in that: An outer surface of one side of the limit block (16) is elastically connected to one end of the installation cavity (13) via a disc spring (17).

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