Wind scooper and air-cooled motor using same

Abstract

The utility model discloses a wind scooper and an air-cooled motor using the same. The wind scooper comprises a wind-guiding upper shell and a wind-guiding lower shell which are suitable for being assembled into a cylindrical wind-guiding cavity; fan housings are integrally formed on the upper air guide shell and the lower air guide shell; an air inlet screen plate is arranged on the fan housing; and a junction box is integrated on the outer wall, opposite to the cylindrical air guide cavity, of the air guide upper shell. According to the utility model, the production process of the fan housing structure of the air-cooled motor can be simplified, and the assembly process of the air-cooled motor can be simplified, thereby reducing the production cost.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to an air guide cover and an air-cooled motor using the same. Background Art

[0002] A motor refers to a device that realizes the conversion or transmission of electrical energy based on the law of electromagnetic induction. It usually includes a housing, a stator, a rotor, and a main shaft. The stator is fixedly arranged in the housing, the rotor is connected to the main shaft, and the rotor rotates relative to the stator under electromagnetic drive and outputs in the form of mechanical energy through the main shaft.

[0003] During the process of converting electrical energy into mechanical energy, a certain degree of energy loss will occur in the motor, and this part of energy will increase the temperature of the motor in the form of heat. Therefore, the motor is usually equipped with a cooling component to adjust the working temperature of the motor and ensure the normal operation of the motor. Air cooling is the most common form of motor cooling.

[0004] Specifically, for example, an air guide cover of an air-cooled pitch motor disclosed in the patent with the publication number CN221151079U. In order to protect the cooling fan, it is necessary to design and assemble a fan cover and an air guide cover, and a duct structure also needs to be designed for the air guide cover. In this structure, the fan of the motor rotates with the rotating shaft, and the generated wind is guided by the fan cover and introduced into the main duct and secondary duct of the air guide cover through the air outlet, forming a directional flow of wind outside the brake cover to cool the brake cover and the motor inside. For the air guide cover based on this disclosed technology, although it can achieve the guiding effect of the cooling air, for the overall motor, the separate design and mutual assembly of the fan cover and the air guide cover, and the structure of designing the duct in the air guide cover not only increase the component design and production costs, but also cause the complexity of the structure assembly. Another example is a motor with a front air guide cover disclosed in the patent with the publication number CN205882937U, which needs to cooperate with the air cover, heat dissipation ribs, and front air guide cover to achieve the conduction effect of the cooling air, and also has the problem of complex structure.

[0005] Therefore, aiming at the problems of complex structure and cumbersome assembly process existing in the air guide cover of the existing air-cooled motor, it is necessary to further optimize the structure of the air guide cover used. Summary of the Utility Model

[0006] The first object of the utility model is to provide an air guide cover to solve the technical problem of simplifying its production and assembly processes.

[0007] The second object of the utility model is to provide an air-cooled motor to solve the technical problem of optimizing and simplifying its overall structure to reduce production costs.

[0008] The air guide cover of the utility model is realized as follows:

[0009] An air guide cover, comprising: an upper air guide housing and a lower air guide housing that are adapted to be assembled into a cylindrical air guide cavity; wherein

[0010] Fan covers are integrally formed on both the upper air guide housing and the lower air guide housing; an air inlet net plate is provided on the fan cover; and

[0011] A junction box is integrated on the outer wall of the upper air guide housing facing away from the cylindrical air guide cavity.

[0012] In an optional implementation case of the present utility model, the air inlet net plate is a circular structure; and

[0013] The air inlet net plate is integrally formed on the corresponding fan cover of the upper air guide housing and / or the lower air guide housing.

[0014] In an optional implementation case of the present utility model, an outlet hole and a grounding post hole for communicating the junction box with the cylindrical air guide cavity are further provided on the upper air guide housing.

[0015] In an optional implementation case of the present utility model, air outlet holes are further provided on the side walls of the end of the lower air guide housing away from the air inlet net plate.

[0016] In an optional implementation case of the present utility model, a mounting plate is integrally provided on the upper air guide housing or the lower air guide housing.

[0017] In an optional implementation case of the present utility model, locking holes adapted for fasteners to pass through are respectively provided on the end faces where the upper air guide housing and the lower air guide housing are assembled.

[0018] In an optional implementation case of the present utility model, a plurality of protruding positioning posts are respectively provided on the inner edges of the end faces where the upper air guide housing and / or the lower air guide housing are assembled.

[0019] The air-cooled motor of the present utility model is realized as follows:

[0020] An air-cooled motor, comprising: the air guide cover as described above, and a motor assembly disposed in the cylindrical air guide cavity of the air guide cover and a fan connected to one end of the output shaft of the motor assembly.

[0021] In an optional implementation case of the present utility model, the motor assembly includes a rotor assembly and a stator assembly that are used in cooperation, a front end cover connected to one axial end of the stator assembly, and a rear end cover connected to the other axial end of the stator assembly;

[0022] The output shaft passes through the rear end cover and is connected to the fan.

[0023] In an optional implementation case of the present utility model, at least one protruding support rib is respectively provided on the inner walls of the upper air guide housing and the lower air guide housing facing the cylindrical air guide cavity;

[0024] The support ribs are adapted to abut against the stator assembly.

[0025] In an alternative embodiment of the present utility model, shaft side plates adapted to the front end cover are respectively provided on the upper air guide housing and the lower air guide housing; and

[0026] At least one positioning boss is respectively provided on the end faces of the shaft side plates of the upper air guide housing and the lower air guide housing facing the front end cover; the positioning boss is adapted to abut against the front end cover.

[0027] By adopting the above technical solutions, the present utility model has the following beneficial effects: The air guide cover of the present utility model and the air-cooled motor using the same are integrally formed with a fan cover on the air guide cover, and the junction box is also integrally processed and formed on the air guide cover, which can not only simplify the production process of the air guide structure of the air-cooled motor, but also simplify the assembly process of the air-cooled motor, thereby reducing the production cost. Therefore, the air guide cover with this structure can reduce the production cost while satisfying the conduction effect of the cooling air generated by the fan. Description of the Drawings

[0028] Figure 1 It is a schematic structural view of the first perspective of the air guide cover of the present utility model used in an air-cooled motor;

[0029] Figure 2 It is a schematic structural view of the second perspective of the air guide cover of the present utility model used in an air-cooled motor;

[0030] Figure 3 It is a schematic cross-sectional view of the air guide cover of the present utility model used in an air-cooled motor;

[0031] Figure 4 It is a schematic exploded structural view of the first perspective of the air guide cover of the present utility model used in an air-cooled motor;

[0032] Figure 5 It is a schematic exploded structural view of the second perspective of the air guide cover of the present utility model used in an air-cooled motor;

[0033] Figure 6 It is a schematic exploded structural view of the third perspective of the air guide cover of the present utility model used in an air-cooled motor.

[0034] In the figure: air guide upper housing 11, air guide lower housing 12, fan housing 13, junction box 14, air outlet 15, air inlet grille 16, semi-circular groove 17, limit groove 18, wire outlet 19, earthing post hole 110, mounting plate 111, locking hole 112, positioning post 113, support rib 115, shaft side plate 116, positioning boss 117, through hole 118, fan 2, rotor assembly 31, stator assembly 32, front end cover 33, rear end cover 34, output shaft 35, long screw 36, earthing post 4. Detailed implementation mode

[0035] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to specific embodiments in conjunction with the drawings.

[0036] Embodiment 1:

[0037] Please refer to Figures 1 to 6 As shown, this embodiment provides an air guide cover, which is applicable to an air-cooled motor. In order to adapt to the use requirements of the air-cooled motor, the general structure of the air guide cover includes: an air guide upper housing 11 and an air guide lower housing 12 that are suitable for assembling into a cylindrical air guide cavity; among them, a fan housing 13 is integrally formed on both the air guide upper housing 11 and the air guide lower housing 12; and a junction box 14 is integrated on the outer wall of the air guide upper housing 11 facing away from the cylindrical air guide cavity.

[0038] Under this structure, the air guide cover of this embodiment can synchronously realize the conduction of cooling air, the external protection of the fan 2, and the function of the junction box 14. Such a structure not only simplifies the production process of components, but also greatly simplifies the assembly process between components, and the overall structure has high use strength and long service life.

[0039] Specifically, first, taking an optional implementation case as an example in combination with the drawings, in order to make the air guide cover of this embodiment meet the use requirements of the fan 2, an air inlet grille 16 is also provided on the fan housing 13. Furthermore, an air outlet 15 is also provided on the side wall of the end of the air guide lower housing 12 away from the air inlet grille 16. The design of the air outlet 15 here is mainly to enable the cooling air to be discharged from the air outlet 15 after cooling the motor components in the air-cooled motor.

[0040] Here, in combination with the common use shape of the air inlet grille 16, preferably, the air inlet grille 16 is a circular structure.

[0041] For the circular-structured air inlet grille 16, it can be processed and formed in the following ways:

[0042] First, the air inlet grille 16 is formed by assembling two semi-circular structures. At this time, one semi-circular structure is formed on the upper air guiding housing 11, and the other semi-circular structure is formed on the lower air guiding housing 12. When the upper air guiding housing 11 and the lower air guiding housing 12 are assembled in place, the two semi-circular structures can exactly assemble to form the circular air inlet grille 16 of the structure body.

[0043] Second, the circular air inlet grille 16 of the structure body is integrally formed on the upper air guiding housing 11 and the lower air guiding housing 12. Taking the case where the air inlet grille 16 is integrally formed in the upper air guiding housing 11 as an example in the attached drawings of this embodiment, at this time, a semi-circular groove 17 adapted to the air inlet grille 16 is formed on the lower air guiding housing 12. When the upper air guiding housing 11 and the lower air guiding housing 12 are assembled in place, the air inlet grille 16 in the upper air guiding housing 11 exactly inserts into the semi-circular groove 17 of the lower air guiding housing 12. At this time, preferably, considering the structural stability during the use of the air inlet grille 16, a limiting groove 18 is provided along the outer circular surface on the end surface where the air inlet grille 16 cooperates with the lower air guiding housing 12, and the edge of the semi-circular groove 17 of the lower air guiding housing 12 is adapted to insert into the limiting groove 18, thereby strengthening the firmness of the matching structure formed by the air inlet grille 16 and the lower air guiding housing 12.

[0044] Secondly, in order to meet the use requirements of the air-cooled motor adapted to this air guiding cover, an outlet 19 and a grounding post hole 110 that penetrate the junction box 14 and the cylindrical air guiding cavity are also provided on the upper air guiding housing 11. Here, the outlet 19 and the grounding post hole 110 are mainly to meet the situation when the air guiding cover of this embodiment is applied to a specific air-cooled motor. The lead wire of the stator assembly 32 of the air-cooled motor enters the junction box 14 through the outlet 19 and is connected to the external power supply wiring. At the same time, the grounding post 4 of the air-cooled motor can pass through the upper air guiding housing 11 to reach the junction box 14. When the air-cooled motor is assembled, the grounding wire terminal can be conveniently and quickly installed with a self-tapping screw in the junction box 14. Through the designed outlet 19 and grounding post hole 110 in this embodiment, the problem that the equipment and personal safety cannot be guaranteed due to the inability to connect to the ground wire after the air guiding cover wraps the motor assembly in the prior art is avoided.

[0045] In addition, it should also be noted that a mounting plate 111 is integrally provided on the upper air guiding housing 11 or the lower air guiding housing 12. The design of the mounting plate 111 here facilitates fixing the air-cooled motor of this embodiment to a specific application scenario.

[0046] Next, what needs to be explained is the assembly problem between the upper air guiding housing 11 and the lower air guiding housing 12 of this embodiment:

[0047] Generally, locking holes 112 adapted for fasteners to pass through are respectively provided on the end faces where the upper air guiding housing 11 and the lower air guiding housing 12 are assembled. The fasteners here can be selected as screws.

[0048] More specifically, a plurality of protruding positioning posts 113 are respectively provided on the inner edges of the end faces assembled by the upper air guide housing 11 and / or the lower air guide housing 12. Here, when both the upper air guide housing 11 and the lower air guide housing 12 are provided with the positioning posts 113, when the upper air guide housing 11 and the lower air guide housing 12 are assembled, the positioning posts 13 on the upper air guide housing 11 and the lower air guide housing 12 are misaligned, so that the plurality of positioning posts 113 on the upper air guide housing 11 are adapted to be inserted into the lower air guide housing 12, and the plurality of positioning posts 113 on the lower air guide housing 12 are adapted to be inserted into the upper air guide housing 11. The design of the positioning posts 113 here can, on the one hand, enhance the strength of the edges of the assembled end faces of the upper air guide housing 11 and the lower air guide housing 12, and on the other hand, reduce the probability of deformation of the assembled surfaces of the upper air guide housing 11 and the lower air guide housing 12.

[0049] In summary, for the air guide cover of this embodiment, the air guide cover is integrally formed with the fan cover 13, and the junction box 14 is also integrally processed on the air guide cover. This can not only simplify the production process of the air guide structure of the air-cooled motor, but also simplify the assembly process of the air-cooled motor, thereby reducing the production cost. Therefore, the air guide cover with this structure can reduce the production cost while satisfying the conduction effect of the cooling air generated by the fan 2.

[0050] Embodiment 2:

[0051] Please refer to Figures 1 to 6 As shown, on the basis of the air guide cover of Embodiment 1, this embodiment provides an air guide mechanism for an air-cooled motor, including: the air guide cover of Embodiment 1, and a motor assembly provided in the cylindrical air guide cavity of the air guide cover and a fan 2 connected to one end of the output shaft 35 of the motor assembly.

[0052] Based on the above situation, in detail, the motor assembly includes a rotor assembly 31 and a stator assembly 32 that are used in cooperation, a front end cover 33 connected to one axial end of the stator assembly 32, and a rear end cover 34 connected to the other axial end of the stator assembly 32; the output shaft 35 passes through the rear end cover 34 and is connected to the fan 2. When the output shaft 35 rotates, the fan 2 sucks air from behind the rear end cover 34 and blows it towards the front end cover 33 to realize the cooling of the stator assembly 32.

[0053] For the motor assembly adopted in this embodiment, the motor housing in the traditional motor assembly is cancelled, and instead the front end cover 33 and the rear end cover 34 are directly assembled with the stator assembly 32. This can not only simplify the structure and reduce the production cost, but also accelerate the air-cooling efficiency of the stator assembly 32 and avoid the problem of the long cooling air conduction chain due to the transmission of the motor housing in the traditional technology.

[0054] Based on the above structure, from the perspective of simplifying the assembly process, in an alternative implementation, the front end cover 33, the stator assembly 32, and the rear end cover 34 in this embodiment are firmly connected by at least two through long screws 36. That is to say, these three components can be relatively tightened simultaneously, without the need for separate tightening and assembly pairwise.

[0055] In addition, regarding the assembly problem of the air guide cover and the motor assembly in this embodiment, the following design is adopted in this embodiment to ensure that the motor assembly is reliably and firmly fixed in the air guide cover:

[0056] First of all, at least one raised support rib 115 is provided on the inner walls of the air guide upper housing 11 and the air guide lower housing 12 facing the cylindrical air guide cavity; the support rib 115 is adapted to abut against the stator assembly 32. Taking an alternative implementation as an example with reference to the accompanying drawings, four support ribs 115 are designed in the air guide upper housing 11, and four support ribs 115 are designed in the air guide lower housing 12 at the same time. And the four support ribs 115 in the air guide upper housing 11 and the air guide lower housing 12 can both be arranged in a two-row distribution structure. It should be noted that on the one hand, the design of the support rib 115 can firmly limit the motor assembly in the cylindrical air guide cavity, and on the other hand, since the support rib 115 protrudes from the inner walls of the air guide upper housing 11 and the air guide lower housing 12, the inner walls of the air guide upper housing 11 and the air guide lower housing 12 will not directly contact the stator assembly 32. Therefore, a ventilation channel can be naturally formed between the inner walls of the air guide upper housing 11 and the air guide lower housing 12 and the stator assembly 32. In this way, it is not necessary to design a separate ventilation channel in the air guide upper housing 11 and the air guide lower housing 12. That is to say, the design of the support rib 115 in this embodiment serves two purposes, thus further simplifying the overall structure of the air-cooled motor in this embodiment.

[0057] Secondly, in an alternative implementation of the present invention, shaft side plates 116 adapted to the front end cover 33 are respectively provided on the air guide upper housing 11 and the air guide lower housing 12; and at least one positioning boss 117 is provided on the end faces of the shaft side plates 116 of the air guide upper housing 11 and the air guide lower housing 12 facing the front end cover 33; the positioning boss 117 is adapted to abut against the front end cover 33.

[0058] In summary, the positioning boss 117 can be used to form a limit on one shaft side end of the motor assembly. Then, with the cooperation of the grounding post 4 and the wiring hole, combined with the support ribs 115 in the air guide upper housing 11 and the air guide lower housing 12, and the fasteners between the air guide upper housing 11 and the air guide lower housing 12, the motor assembly can be firmly clamped in the cylindrical air guide cavity, making its operation more stable.

[0059] In addition, on the basis of the above structure, in an alternative embodiment, through holes 118 for one-to-one cooperation with at least two long screws 36 are provided on the axial side plates 116 of the upper air guide housing 11 and the lower air guide housing 12. The through holes 118 here can directly penetrate the positioning bosses 117 or can be independent of the positioning bosses 117, and this embodiment does not make an absolute limitation in this regard. The design of the through holes 118 is mainly to facilitate the connection of the pump head to the front end cover 33 of the motor assembly in one embodiment, and improve the coaxiality of the whole machine and the pump head to ensure the stability of the whole machine.

[0060] In summary, for the air-cooled motor of this embodiment, firstly, the overall structure of the motor assembly is simplified to achieve the effects of reducing production costs and simplifying the assembly process. Secondly, the structure of the air guide cover is further simplified to further reduce production costs and simplify the assembly process. Therefore, with the cooperation of the double simplified structures, the air-cooled motor of this embodiment has lower production costs and higher cooling efficiency compared with the air-cooled motor of the traditional technology.

[0061] In the above specific embodiments, the purpose, technical solutions and beneficial effects of the present invention have been further described in detail. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

[0062] In the description of the present invention, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0063] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0064] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element 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 utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0065] In addition, terms such as "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

[0066] In the present utility model, unless otherwise clearly specified and defined, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being above, over and on the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being below, under and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

Claims

1. An air guide cover, characterized in that: include: An air guide upper shell and an air guide lower shell suitable for being assembled into a cylindrical air guide cavity; in The air guide upper shell and the air guide lower shell are both integrally formed with a fan cover; the fan cover is provided with an air inlet mesh plate; and A junction box is integrated on the outer wall of the air guide upper shell facing away from the cylindrical air guide cavity.

2. The air guide cover according to claim 1, characterized in that: The air inlet mesh plate is a circular structure; and The air inlet mesh plate is integrally formed on a fan cover corresponding to the air guide upper shell and / or the air guide lower shell.

3. The air guide cover according to claim 1, characterized in that: The air guide upper shell body is also provided with a wire outlet and a grounding column hole which penetrate the junction box and the cylindrical air guide cavity.

4. The air guide cover according to claim 1, characterized in that: An air outlet hole is also provided on the side wall of the end of the air guide lower shell away from the air inlet mesh plate.

5. The air guide cover according to any one of claims 1 to 4, characterized in that: A mounting plate is integrally provided on the air guide upper shell or the air guide lower shell.

6. The air guide cover according to claim 1, characterized in that: The assembled end surfaces of the air guide upper shell and the air guide lower shell are respectively provided with locking holes suitable for fasteners to pass through.

7. The air guide cover according to claim 1 or 6, characterized in that: A plurality of raised positioning columns are respectively provided on the inner edges of the assembled end surfaces of the air guide upper shell and / or the air guide lower shell.

8. An air-cooled motor, characterized in that: include: An air guide cover as claimed in any one of claims 1 to 7, and a motor assembly arranged in the cylindrical air guide cavity of the air guide cover and a fan connected to one end of the output shaft of the motor assembly.

9. The air-cooled motor according to claim 8, characterized in that: The motor assembly includes a rotor assembly and a stator assembly for use together, a front end cover connected to one axial side end of the stator assembly, and a rear end cover connected to the other axial side end of the stator assembly; The output shaft passes through the rear end cover and is connected to the fan.

10. The air-cooled motor according to claim 9, characterized in that: At least one convex supporting rib is respectively provided on the inner wall of the air guide upper shell and the air guide lower shell facing the cylindrical air guide cavity; The support ribs are suitable for abutting against the stator assembly.

11. The air-cooled motor according to claim 9, characterized in that: The air guide upper shell and the air guide lower shell are respectively provided with shaft side plates adapted to the front end cover; and At least one positioning boss is respectively provided on the end surface of the axial side plates of the air guide upper shell and the air guide lower shell facing the front end cover; the positioning boss is suitable for abutting against the front end cover.

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