End cover structure of brushless bypass fan

Abstract

The utility model relates to the technical field of motor manufacturing, and particularly discloses a brushless bypass fan end cover structure which comprises a cover body, the middle of the cover body is sunken downwards, an annular air cavity is formed in the bottom of the cover body, and a round hole allowing a motor rotor to penetrate through is formed in the center of the cover body. A bypass pipeline which is communicated with the annular air cavity and extends outwards is arranged in a non-concave area at the upper part of the cover body; a plurality of supports used for fixing the support type motor are arranged in the concave area of the cover body, and first screw holes are formed in the supports. A plurality of second screw holes used for fixing the casing-type motor are formed in the non-concave area of the cover body, the cover body can meet the requirement that the support-type motor and the casing-type motor are installed separately, in the actual production process, an enterprise does not need to design an end cover production line separately for the support-type motor and the casing-type motor, the production cost of the enterprise is reduced, and the production efficiency of the enterprise is improved. And the use value is high.

Description

Technical Field

[0001] This application relates to the technical field of motor manufacturing, and particularly to a brushless side-ventilated fan end cover structure. Background Art

[0002] As Figure 1 shown in the bracket-type motor and as Figure 2 shown in the housing-type motor, different end covers need to be installed. During the production process, enterprises need to design two end cover production lines for separate production. In this way, the production cost of enterprises will be greatly increased.

[0003] To solve the above problems, this application discloses a brushless side-ventilated fan end cover structure. Utility Model Content

[0004] To overcome the deficiencies of the prior art, this application discloses a brushless side-ventilated fan end cover structure.

[0005] To achieve the above object, the technical solution adopted by this application is: a brushless side-ventilated fan end cover structure, including a cover body. A circular wind cavity is formed at the bottom of the cover body due to the middle part of the cover body being sunken downward. A round hole for the motor rotor to pass through is opened at the center of the cover body. A bypass duct that is connected to the circular wind cavity and extends outward is provided in the non-sunken area at the upper part of the cover body;

[0006] Several brackets for fixing the bracket-type motor are arranged in the sunken area of the cover body. A first screw hole is opened inside the bracket;

[0007] Several second screw holes for fixing the housing-type motor are opened in the non-sunken area of the cover body.

[0008] Further preferably, the cover body is made of BMC material.

[0009] Further preferably, a groove for the wire to pass through is provided on the non-sunken area of the cover body and extends into the sunken area.

[0010] Further preferably, a step is provided at the upper part of the bracket. The first screw hole is axially opened inside the step. First positioning inserts are respectively arranged on both sides of the first screw hole in the step.

[0011] Further preferably, a raised block is provided outside the step on the side away from the two first positioning inserts.

[0012] Further preferably, several brackets for supporting the bracket-type motor are arranged in a circular array in the sunken area of the cover body. The several brackets and the several supports are arranged alternately.

[0013] Further preferably, several brackets and several supports are integrally connected to the side wall of the concave area.

[0014] Further preferably, several second positioning inserts are provided in the non-concave area of the cover body.

[0015] The present application achieves the following beneficial effects:

[0016] The cover body of the present application can meet the separate installation of the bracket-type motor and the housing-type motor. During actual production, enterprises do not need to separately design the end cover production lines for the bracket-type motor and the housing-type motor, reducing the production cost of enterprises and having high use value.

[0017] As for other features and advantages of the present application, they will be described in the subsequent specification, and will be partially obvious from the specification, or understood by implementing the present application. The objectives and other advantages of the present application can be achieved and obtained through the structures pointed out in the specification and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with the disclosure of the present application, and are used together with the specification to explain the principles of the present disclosure.

[0019] Figure 1 Schematic structural diagram of the bracket-type motor disclosed in the present application;

[0020] Figure 2 Schematic structural diagram of the housing-type motor disclosed in the present application;

[0021] Figure 3 Schematic structural diagram of the cover body disclosed in the present application;

[0022] Figure 4 For Figure 3 the enlarged structural diagram at A;

[0023] Figure 5 Schematic back structure diagram disclosed in the present application;

[0024] Figure 6 Schematic installation diagram of the bracket-type motor and the cover body disclosed in the present application;

[0025] Figure 7 Schematic installation diagram of the housing-type motor and the cover body disclosed in the present application;

[0026] In the figure: 10. Cover body; 11. Round hole; 12. Annular air cavity; 13. Bypass duct; 14. Bracket; 141. Step; 142. First screw hole; 143. First positioning insert block; 144. Protruding block; 15. Second screw hole; 16. Bracket; 17. Second positioning insert block; 20. Bracket-type motor; 21. Positioning groove; 30. Housing-type motor; 31. U-shaped groove. Detailed implementation mode

[0027] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0028] In the description of the present application, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating the orientation or position relationship are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0029] Embodiment 1

[0030] In order to make the end cover compatible Figure 1 with the bracket-type motor 20 shown in the figure and the housing-type motor 30 shown in Figure 2 the figure, as shown in Figures 3 - 7 the figure, the present application discloses a brushless bypass fan end cover structure, including a cover body 10. The middle part of the cover body 10 is recessed downward to form an annular air cavity 12 at its bottom. A round hole 11 for the motor rotor to pass through is opened at the center of the cover body 10. A bypass duct 13 communicating with the annular air cavity 12 and extending outward is provided in the non-recessed area of the upper part of the cover body 10;

[0031] Several brackets 14 for fixing the bracket-type motor 20 are arranged in the recessed area of the cover body 10. A first screw hole 142 is opened inside the bracket 14;

[0032] Several second screw holes 15 for fixing the housing-type motor 30 are opened in the non-recessed area of the cover body 10.

[0033] When installing the bracket-type motor 20, place the bracket-type motor 20 on several brackets 14 and make its rotor pass through the round hole 11, and then screw the screw on the bracket-type motor 20 into the first screw hole 142.

[0034] When installing the housing-type motor 30, place the housing-type motor 30 on the cover body 10 and make its rotor pass through the round hole 11, and then screw the screw on the housing-type motor 30 into the second screw hole 15.

[0035] As a preferred embodiment, the cover 10 of the present application is made of BMC material, which has stronger mechanical properties, better corrosion resistance and heat resistance compared with other materials.

[0036] To facilitate the internal or external wiring of the bracket-type motor 20 and the housing-type motor 30, the present application is provided with a groove 18 extending into the recessed area on the non-recessed area of the cover 10 for the wire to pass through.

[0037] Embodiment 2

[0038] Based on Embodiment 1 and referring to Figure 1 、 Figure 3 、 Figure 4 and Figure 5 As shown, a step 141 is provided on the upper part of the bracket 14 of the present application, a first screw hole 142 is axially opened inside the step 141, and first positioning blocks 143 are respectively provided on both sides of the first screw hole 142 of the step 141. Cooperating with this first positioning block 143, a positioning groove 21 is opened at the bottom edge of the bracket-type motor 20 of the present application. When installing the bracket-type motor 20, the edge of the bracket-type motor 20 is lapped on the step 141, and the two first positioning blocks 143 on the step 141 are inserted into the positioning groove 21 of the bracket-type motor 20. Screwing a screw into the first screw hole 142 inside the bracket-type motor 20 can fix the bracket-type motor 20 on the bracket 14.

[0039] On the outer side of the step 141 of the present application, away from the two first positioning blocks 143, a raised block 144 is provided. When the bracket-type motor 20 is fixed on the step 141, it is not easy to deform the step 141 under pressure, and the stability is stronger.

[0040] In addition, the present application also arranges several brackets 16 for supporting the bracket-type motor 20 in a circular array in the recessed area of the cover 10. The several brackets 16 and the several brackets 14 are arranged alternately. With the cooperation of the several brackets 16 and the several brackets 14, stable installation of the bracket-type motor 20 can be achieved, and it has strong practical value.

[0041] In a preferred embodiment, the present application also integrally connects several brackets 16 and several brackets 14 to the side wall of the recessed area. In this way, the stability of the several brackets 14 and the several brackets 16 is stronger, and the bracket-type motor 20 can be more stably installed.

[0042] Embodiment 3

[0043] Based on Embodiment 1 and Embodiment 2 and referring to Figure 2 、 Figure 3 、 Figure 4 and Figure 5As shown, in order to position the housing-type motor 30, several second positioning inserts 17 are provided in the non-recessed area of the cover 10. When the housing-type motor 30 is installed, a U-shaped groove 31 that matches it needs to be opened at the edge of the housing-type motor 30. When the second positioning insert 17 is inserted into the U-shaped groove 31, the fixing of the housing-type motor 30 is completed.

[0044] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with that embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0045] The above embodiments are only for illustrating the technical concept and features of the present application. The purpose is to enable those skilled in the art to understand the content of the present application and implement it accordingly, and it cannot be used to limit the protection scope of the present application. Any equivalent transformation or modification made according to the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A brushless side-ventilated fan end cover structure, characterized in that, It includes a cover body (10). In the middle of the cover body (10), there is a downward depression, and an annular air cavity (12) is formed at its bottom. A round hole (11) for the motor rotor to pass through is opened at the center of the cover body (10). A bypass pipe (13) that is connected to the annular air cavity (12) and extends outward is arranged in the non-depressed area at the upper part of the cover body (10). Several brackets (14) for fixing the bracket-type motor (20) are arranged in the depressed area of the cover body (10). A first screw hole (142) is opened inside the bracket (14). Several second screw holes (15) for fixing the housing-type motor (30) are opened in the non-depressed area of the cover body (10).

2. The end cover structure of a brushless side-ventilated fan according to claim 1, characterized in that, The cover body (10) is made of BMC material.

3. The end cover structure of a brushless side-ventilated fan according to claim 1, characterized in that, A groove (18) for allowing wires to pass through is arranged in the non-depressed area of the cover body (10) and extends into the depressed area.

4. A brushless side-ventilated fan end cover structure according to claim 1, characterized in that, A step (141) is arranged at the upper part of the bracket (14). The first screw hole (142) is axially opened inside the step (141). First positioning plugs (143) are arranged on both sides of the first screw hole (142).

5. The end cover structure of a brushless side-ventilated fan according to claim 4, characterized in that, A raised block (144) is arranged outside the step (141) on the side away from the two first positioning plugs (143).

6. The end cover structure of a brushless side-ventilated fan according to claim 1, characterized in that, Several brackets (16) for supporting the bracket-type motor (20) are arranged in an annular array in the depressed area of the cover body (10). The several brackets (16) and the several brackets (14) are arranged alternately.

7. The end cover structure of a brushless side ventilation fan according to claim 6, characterized in that, The several brackets (16) and the several brackets (14) are integrally connected to the side wall of the depressed area.

8. A brushless side-ventilated fan end cover structure according to claim 1, characterized in that, Several second positioning plugs (17) are arranged in the non-depressed area of the cover body (10).

Images