Reduction gearbox bottom shell for right-angle motor and reduction gearbox shell

Abstract

The utility model relates to the technical field of reduction gearboxes, and provides a reduction gearbox bottom shell and a reduction gearbox shell for a right-angle motor, the reduction gearbox bottom shell comprises a bottom shell body, the bottom shell body is provided with a placing cavity, and the placing cavity is provided with a reduction gear mounting position; a spigot structure is arranged on the edge of an opening of the containing cavity and suitable for being connected with a reduction gearbox cover shell in a buckled mode. A first through hole is formed in the side wall of the placement cavity, and an output shaft of the motor body penetrates through the first through hole; a second through hole is formed in the bottom of the containing cavity and used for allowing an output shaft of the reduction gearbox to penetrate through, and the axis of the first through hole is perpendicular to the axis of the second through hole. The reduction gearbox shell comprises a reduction gearbox cover shell and the reduction gearbox bottom shell, and the reduction gearbox cover shell is matched with the reduction gearbox bottom shell. By arranging the spigot structure, the sealing performance of the reduction gearbox shell is improved, friction among all components in the reduction gearbox can be reduced, and noise is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of reduction gearboxes, and in particular to a reduction gearbox bottom shell and a reduction gearbox housing for a right-angle motor. Background Art

[0002] With the trend toward electrification and intelligent vehicles, consumers are demanding higher levels of comfort in their vehicles. Panoramic sunroofs are increasingly popular, and demand for the accompanying skylights is even stronger. Skylights offer functions such as dimming, heat insulation, and privacy protection, while consuming low energy and being adjustable to suit passenger needs. The skylight motor, the power mechanism that drives the sunshade, is the heart of the vehicle's sunroof.

[0003] Currently, due to space constraints on the roof of a car, canopy motors generally use right-angle motors, which consist of a motor body and a reduction gearbox. However, these reduction gearboxes lack effective sealing, allowing dust and debris to easily enter the reduction gearbox and adhere to the meshing surfaces of the rotating shaft (worm) and reduction gear (worm wheel). Over time, this causes increased wear on the rotating shaft and reduction gear, shortening the reduction gearbox's service life and increasing the noise generated during operation.

[0004] Therefore, it is necessary to improve the structure of the reduction gearbox of the existing right-angle motor and enhance the sealing performance of the reduction gearbox. Utility Model Content

[0005] In order to solve the above problems, the present application provides a reduction gearbox bottom shell and reduction gearbox housing for a right-angle motor, which have an ingenious design and a simple structure. By providing a stopper structure, the present application improves the sealing performance of the reduction gearbox housing, helps reduce friction between the various components in the reduction gearbox, and reduces noise. The technical solutions adopted in the present application are as follows:

[0006] A reduction gearbox bottom shell for a right-angle motor, comprising:

[0007] The bottom shell body is provided with a placement cavity, and the placement cavity is provided with a reduction gear installation position; the opening edge of the placement cavity is provided with a stop structure, and the stop structure is suitable for being snapped together with the reduction box cover shell; the side wall of the placement cavity is provided with a first through-hole, and the first through-hole is used to pass the output shaft of the motor body; the bottom of the placement cavity is provided with a second through-hole, and the second through-hole is used to pass the output shaft of the reduction box, and the axis of the first through-hole is perpendicular to the axis of the second through-hole.

[0008] By setting a stop structure, the sealing of the connection between the gearbox bottom shell and the gearbox cover shell after they are buckled together can be improved, that is, the overall sealing of the gearbox shell is improved, which can reduce the risk of dust and debris entering the gearbox, thereby helping to reduce the friction between the various components in the gearbox and reduce the noise when the gearbox is working.

[0009] In some embodiments, a snap-fit structure is provided on the outer wall of the bottom shell body, and the snap-fit structure is suitable for snap-fit connection with the reduction gear box cover shell.

[0010] By setting up a snap-on structure, the bottom shell body can be snap-connected with the gearbox cover shell, which improves the assembly and connection efficiency of the bottom shell body and the gearbox cover shell. At the same time, since the assembly and connection of the bottom shell body and the gearbox cover shell do not require other connecting parts, the number of components of the gearbox is reduced.

[0011] In some embodiments, the stop structure is a male stop, the outer wall of the bottom shell body is provided with a sink, the bottom surface of the sink is connected to the outer surface of the male stop, the snap structure is a male buckle and the male buckle is provided on the bottom surface of the sink.

[0012] By providing a male stopper and placing the male buckle in the sink, the strength of the snap connection between the bottom shell body and the gearbox cover can be ensured while also ensuring that the wall thickness of the bottom shell body is not too thick, saving materials when manufacturing the bottom shell body. If the male buckle is replaced with a female buckle, in order to ensure the strength of the snap connection between the bottom shell body and the gearbox cover, the female buckle needs to be not too shallow, which requires the female buckle to have sufficient depth, but this will increase the wall thickness of the bottom shell body, or the female buckle will penetrate the wall thickness of the bottom shell body, which will weaken the sealing effect of the stopper structure.

[0013] In some embodiments, a disassembly groove is provided on a side of the sink away from the male stop, and the disassembly groove is used to release the snap connection between the reduction gear box cover shell and the reduction gear box bottom shell.

[0014] By providing the disassembly groove, the reduction gear box cover shell can be quickly disassembled from the bottom shell body using a disassembly tool, which facilitates the disassembly of the reduction gear box shell when the reduction gear box needs to be repaired.

[0015] In some embodiments, a limiting rib is provided in the placement cavity, the limiting rib is vertically arranged at the bottom of the placement cavity, and the limiting rib is suitable for abutting against the output shaft end of the motor body.

[0016] By setting the limiting rib, the output shaft end of the motor body can abut against the limiting rib. The limiting rib limits the axial movement of the output shaft of the motor body, avoiding the axial movement of the output shaft of the motor body, thereby improving the stability of the right-angle motor during operation and reducing the noise of the reducer during operation.

[0017] In some embodiments, two screw holes are further provided on the side wall of the placement cavity where the first through-hole is provided. The two screw holes are arranged on opposite sides of the first through-hole, and the screw holes are used to screw the motor body.

[0018] By setting screw holes, the bottom shell body and the motor body can be screwed together, ensuring the integrity of the bottom shell body and the motor body, reducing the risk of relative displacement (relative movement) between the bottom shell body and the motor body, and thus ensuring the stability of the right-angle motor transmission.

[0019] In some embodiments, the reduction gear mounting position is an annular boss, and the annular boss is used to clamp the bearing of the reduction gear.

[0020] By providing the annular boss, the bearing can be clamped in the annular boss through interference fit with the annular boss, thereby improving the convenience of bearing installation.

[0021] In some embodiments, the side wall of the placement cavity is provided with a clearance notch, and the clearance notch and the screw hole are respectively provided on two opposite side walls of the placement cavity, and the clearance notch is used to make room for the disassembly and assembly of the screw.

[0022] By providing the clearance gap, the side wall of the bottom shell body can avoid interference with the installation tool when the installation tool is used to screw the screw into the screw hole, reducing the difficulty of screwing the screw into the screw hole and ensuring the convenience of screwing the screw into the screw hole.

[0023] In some embodiments, the thickness of the side wall of the placement cavity where the screw hole is provided is greater than the thickness of the side wall of other parts of the placement cavity.

[0024] By setting the thickness of the side wall of the placement cavity with the screw hole to be greater than the thickness of the side wall of other parts of the placement cavity, the risk of thread slippage in the screw hole can be reduced, and the screw connection strength between the bottom shell body and the motor body can be ensured.

[0025] On the other hand, the present application provides a reduction gear housing, comprising a reduction gear cover and the aforementioned reduction gear bottom, wherein the reduction gear cover is adapted to the reduction gear bottom.

[0026] The present application provides a reduction gearbox bottom shell and reduction gearbox housing for a right-angle motor, which has at least one of the following beneficial effects:

[0027] 1. The present application provides a reducer bottom shell for a right-angle motor. By setting a stop structure, the sealing performance of the connection between the reducer bottom shell and the reducer cover shell after the two are fastened together is improved, that is, the overall sealing performance of the reducer shell is improved, which can reduce the risk of dust and debris entering the reducer, thereby helping to reduce the friction between the various components in the reducer and reduce the noise during the operation of the reducer.

[0028] 2. The present application provides a gearbox bottom shell for a right-angle motor. By setting a snap-on structure, the bottom shell body can be snap-connected with the gearbox cover shell, which improves the assembly and connection efficiency of the bottom shell body and the gearbox cover shell. At the same time, since the assembly and connection of the bottom shell body and the gearbox cover shell does not require other connecting parts, the number of components of the gearbox is reduced.

[0029] 3. The present application provides a reduction gearbox bottom shell for a right-angle motor. By providing a male stopper and arranging the male buckle in a sink, this ensures the strength of the snap connection between the bottom shell body and the reduction gearbox cover while also ensuring that the wall thickness of the bottom shell body is not too thick, thus saving materials when manufacturing the bottom shell body. If the male buckle is replaced with a female buckle, in order to ensure the strength of the snap connection between the bottom shell body and the reduction gearbox cover, the female buckle needs to be not too shallow, which requires the female buckle to have sufficient depth. However, this will increase the wall thickness of the bottom shell body, or the female buckle will penetrate the wall thickness of the bottom shell body, which will weaken the sealing effect of the stopper structure.

[0030] 4. The present application provides a reduction gearbox bottom shell for a right-angle motor. By providing a disassembly slot, the reduction gearbox cover shell can be quickly removed from the bottom shell body using a disassembly tool, making it easy to disassemble the reduction gearbox shell when the reduction gearbox needs to be repaired.

[0031] 5. The present application provides a reduction gear box bottom shell for a right-angle motor. By setting a limiting rib, the output shaft end of the motor body can abut against the limiting rib. The limiting rib limits the axial movement of the output shaft of the motor body, thereby avoiding the axial movement of the output shaft of the motor body, thereby improving the stability of the right-angle motor during operation and reducing the noise of the reduction gear box during operation.

[0032] 6. The present application provides a reduction gearbox bottom shell for a right-angle motor. By setting screw holes, the bottom shell body and the motor body can be screwed together, ensuring the integrity of the bottom shell body and the motor body, reducing the risk of relative displacement (relative movement) between the bottom shell body and the motor body, and thus ensuring the stability of the right-angle motor transmission.

[0033] 7. The present application provides a reduction gearbox bottom shell for a right-angle motor. By providing an annular boss, the bearing can be clamped in the annular boss through an interference fit with the annular boss, thereby improving the convenience of bearing installation.

[0034] 8. The present application provides a reduction gearbox bottom shell for a right-angle motor. By setting a clearance gap, it can avoid the interference of the side wall of the bottom shell body with the installation tool when the screw is screwed into the screw hole using the installation tool, thereby reducing the difficulty of screwing the screw into the screw hole and ensuring the convenience of screwing the screw into the screw hole.

[0035] 9. The present application provides a gearbox bottom shell for a right-angle motor. By setting the thickness of the side wall of the placement cavity with the screw hole to be greater than the thickness of the side wall of other parts of the placement cavity, the risk of thread slippage in the screw hole can be reduced, thereby ensuring the screw connection strength between the bottom shell body and the motor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The following will explain the preferred embodiment in a clear and understandable manner with reference to the accompanying drawings, and further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of a reduction gearbox bottom shell and reduction gearbox housing for a right-angle motor:

[0037] Figure 1 It is a schematic diagram of the overall structure of the reduction gearbox bottom shell;

[0038] Figure 2 The gearbox housing is open;

[0039] Figure 3 This is an exploded view of the reduction gearbox;

[0040] Figure 4 This is a top view of the reduction gearbox cover after it is hidden;

[0041] Figure 5 This is a three-dimensional picture of the reduction gearbox cover after it is hidden;

[0042] Figure 6 It is a side view of the reduction gearbox bottom shell;

[0043] Figure 7 It is a three-dimensional diagram of a right-angle motor.

[0044] Description of Figure Numbers:

[0045] Bottom shell body 1, first through hole 2, second through hole 3, male stop 4, sink 5, male buckle 6, disassembly groove 7, limiting rib 8, screw hole 9, annular boss 10, clearance gap 11, motor body 12, reduction box cover 13, reduction gear 14, bearing 15. DETAILED DESCRIPTION

[0046] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the specific implementation methods of the present application will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.

[0047] To simplify the drawings, only the parts relevant to this application are schematically shown in each figure. They do not represent the actual structure of the product. In addition, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one."

[0048] It should be further understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0049] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0050] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0051] refer to Figures 1-6 The present application provides a reduction gear box bottom shell for a right-angle motor, comprising: a bottom shell body 1, the bottom shell body 1 is provided with a placement cavity, the placement cavity is provided with a reduction gear installation position; the opening edge of the placement cavity is provided with a stop structure, the stop structure is suitable for being snap-fitted and connected with the reduction gear box cover shell 13; the side wall of the placement cavity is provided with a first through-hole 2, the first through-hole 2 is used to pass the output shaft of the motor body 12; the bottom of the placement cavity is provided with a second through-hole 3, the second through-hole 3 is used to pass the output shaft of the reduction gear box, and the axis of the first through-hole 2 is perpendicular to the axis of the second through-hole 3.

[0052] Specifically, the right-angle motor includes a motor body 12 and a reduction gear, and the reduction gear includes a reduction gear housing and a reduction gear 14. The reduction gear housing includes a reduction gear bottom shell (bottom shell body 1) and a reduction gear cover shell 13. The motor body 12 is the component that provides power. The output shaft (worm) of the motor body 12 is inserted into the reduction gear and meshes with the reduction gear 14 (worm wheel) in the reduction gear. Through the deceleration of the reduction gear 14, the high speed of the output shaft of the motor body 12 is eventually converted into the low speed of the output shaft of the reduction gear. In order to reduce the friction between the output shaft of the motor body 12 and the reduction gear 14 and the friction between each reduction gear 14, grease is provided in the reduction gear. It is understandable that the reduction gear bottom shell and the reduction gear cover shell 13 are compatible with each other, that is, if the bottom shell body 1 (reduction gear bottom shell) is provided with a stop structure, such as a male stop 4, then the reduction gear cover shell 13 is provided with a female stop. If the bottom shell body 1 is a female stop, then the reduction gear cover shell 13 is provided with a male stop. Only the cooperation of the male stop 4 and the female stop can improve the overall sealing of the reduction gearbox housing. At the same time, the cooperation of the male stop 4 and the female stop can also play a role in the alignment of the bottom shell body 1 and the reduction gearbox cover shell 13.

[0053] It is easy to understand that by setting the stop structure, the sealing of the connection between the bottom shell body 1 (gearbox bottom shell) and the gearbox cover shell 13 can be improved after they are buckled together, that is to say, the overall sealing of the gearbox shell is improved, which can reduce the risk of dust and debris entering the gearbox, thereby helping to reduce the friction between the various components in the gearbox and reduce the noise when the gearbox is working.

[0054] The connection between the bottom shell body 1 and the reduction gear box cover 13 can be screw connection or snap connection. Figure 1-Figure 3 、 Figure 5 、 Figure 7 To facilitate the assembly and connection between the bottom housing body 1 and the reduction gear cover 13, a snap-fit connection is preferred. For example, a male snap 6 is provided on the bottom housing body 1, and a female snap that mates with the male snap 6 is provided on the reduction gear cover 13, or a female snap is provided on the bottom housing body 1, and a male snap is provided on the reduction gear cover 13. The snap-fit connection between the bottom housing body 1 and the reduction gear cover 13 improves the efficiency of the assembly and connection between the bottom housing body 1 and the reduction gear cover 13. Furthermore, since the assembly and connection between the bottom housing body 1 and the reduction gear cover 13 does not require other connectors, the number of components in the reduction gear box is reduced.

[0055] refer to Figure 1-Figure 3 、 Figure 5 、 Figure 7In one embodiment, the stopper structure on the bottom shell body 1 is a male stopper 4, while the gearbox cover 13 is provided with a female stopper. A recessed platform 5 is provided on the outer wall of the bottom shell body 1, the bottom surface of which is connected to the outer surface of the male stopper 4. A male buckle 6 is provided in the recessed platform 5, and correspondingly, a female buckle is provided on the gearbox cover 13. It is understood that by providing the male stopper 4 and locating the male buckle 6 in the recessed platform 5, the wall thickness of the bottom shell body 1 can be ensured while maintaining the strength of the snap connection between the bottom shell body 1 and the gearbox cover 13, while also ensuring that the wall thickness of the bottom shell body 1 is not too thick, thus saving material when manufacturing the bottom shell body 1. If the male buckle 6 is replaced with a female buckle, to ensure the strength of the snap connection between the bottom shell body 1 and the gearbox cover 13, the female buckle must not be too shallow. This requires the female buckle on the bottom shell body 1 to be of sufficient depth, but this will increase the wall thickness of the bottom shell body 1 (the female buckle does not penetrate the bottom shell body 1), or require the female buckle to penetrate the bottom shell body 1, which will weaken the sealing effect of the stopper structure.

[0056] refer to Figure 1-Figure 3 、 Figure 5 、 Figure 7 In order to quickly release the snap connection between the bottom shell body 1 and the reduction gear cover shell 13, a disassembly groove 7 can be provided on the side of the sink 5 away from the male stop 4. By using a disassembly tool, such as a flat-head screwdriver, insert the flat-head screwdriver into the disassembly groove 7, the snap connection between the female buckle and the male buckle 6 can be released, and the reduction gear cover shell 13 can be pried off from the bottom shell body 1. This makes it convenient to disassemble the reduction gear housing when the reduction gear needs to be repaired.

[0057] refer to Figure 1 、 Figure 3-Figure 6 In one embodiment, a limiting rib 8 is provided in the placement cavity. The limiting rib 8 is vertically arranged at the bottom of the placement cavity and is adapted to abut the output shaft end of the motor body 12. By providing the limiting rib 8, the output shaft end of the motor body 12 can abut against the limiting rib 8. The limiting rib 8 limits the axial movement of the output shaft of the motor body 12, thereby preventing axial movement of the output shaft of the motor body 12, thereby improving the stability of the right-angle motor during operation and reducing the noise of the reduction gearbox during operation.

[0058] refer to Figure 1 、 Figure 3-Figure 6 In one embodiment, two screw holes 9 are further provided on the side wall of the placement cavity where the first through-hole 2 is provided. The two screw holes 9 are provided on opposite sides of the first through-hole 2, and the screw holes 9 are used to screw the motor body 12. The provision of the screw holes 9 allows the bottom shell body 1 and the motor body 12 to be screwed together, ensuring the integrity of the bottom shell body 1 and the motor body 12, reducing the risk of relative displacement (relative movement) between the bottom shell body 1 and the motor body 12, and thus ensuring the stability of the right-angle motor transmission.

[0059] In other embodiments, the bottom shell body 1 and at least a portion of the motor body 12 are integrally formed and the integral portion is integrally injection molded, which saves the process of connecting the bottom shell body 1 and the motor body 12 .

[0060] refer to Figure 1-Figure 3 、 Figure 5 、 Figure 6 In one embodiment, the sidewall of the placement cavity is provided with a clearance notch 11. The clearance notch 11 and the screw hole 9 are respectively provided on opposite sides of the placement cavity. The clearance notch 11 is used to make way for the screw to be removed and installed. Correspondingly, the reduction gearbox cover 13 is provided with an extension portion that complements (fits) with the clearance notch 11. It is worth noting that by providing the clearance notch 11, the sidewall of the bottom shell body 1 can avoid interference with the installation tool when the screw is screwed into the screw hole 9 using the installation tool, thereby reducing the difficulty of screwing the screw into the screw hole 9 and ensuring the convenience of screwing the screw into the screw hole 9.

[0061] It is worth noting that in one embodiment, the thickness of the side wall of the placement cavity where the screw hole 9 is provided is greater than the thickness of the side wall of other parts of the placement cavity, which can reduce the risk of thread slippage in the screw hole 9 and ensure the screw connection strength between the bottom shell body 1 and the motor body 12.

[0062] refer to Figure 1 、 Figure 3 In one embodiment, the reduction gear 14 is mounted on an annular boss 10, which is used to secure the bearing 15 of the reduction gear 14. By providing the annular boss 10, the bearing 15 can be secured therein by an interference fit, thereby improving the ease of installation of the bearing 15.

[0063] refer to Figure 2 、 Figure 3 、 Figure 7 The present application also provides a reduction gear housing, comprising a reduction gear cover 13 and the aforementioned reduction gear bottom housing, with the reduction gear cover 13 being compatible with the reduction gear bottom housing. The specific structures of the reduction gear bottom housing and reduction gear cover 13 refer to the aforementioned embodiments. Since the present reduction gear housing adopts the technical solutions of the aforementioned embodiments, it at least has the beneficial effects brought about by the technical solutions of the aforementioned embodiments, which will not be detailed here.

[0064] It should be noted that the above embodiments can be freely combined as needed. The above are only preferred implementations of the present application. It should be noted that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application, and these improvements and modifications should also be considered as the scope of protection of the present application.

Claims

1. A reduction gearbox bottom shell for a right-angle motor, characterized in that: include: The bottom shell body is provided with a placement cavity, and the placement cavity is provided with a reduction gear installation position; the opening edge of the placement cavity is provided with a stopper structure, and the stopper structure is suitable for being snap-fitted with the reduction box cover shell; the side wall of the placement cavity is provided with a first through-hole, and the first through-hole is used to pass the output shaft of the motor body; the bottom of the placement cavity is provided with a second through-hole, and the second through-hole is used to pass the output shaft of the reduction box, and the axis of the first through-hole is perpendicular to the axis of the second through-hole; The outer wall of the bottom shell body is provided with a snap-fit structure, and the snap-fit structure is suitable for snap-fit connection with the reduction gear box cover shell; The stopper structure is a male stopper, the outer wall of the bottom shell body is provided with a sunken platform, the bottom surface of the sunken platform is connected to the outer side surface of the male stopper, the buckle structure is a male buckle and the male buckle is provided on the bottom surface of the sunken platform; A disassembly groove is provided on a side of the sink away from the male stop, and the disassembly groove is used to release the snap connection between the reduction gear box cover shell and the reduction gear box bottom shell.

2. The reduction gearbox bottom shell for a right-angle motor according to claim 1, characterized in that: A limiting rib is provided in the placement cavity. The limiting rib is vertically arranged at the bottom of the placement cavity. The limiting rib is suitable for abutting against the output shaft end of the motor body.

3. A reduction gearbox bottom shell for a right-angle motor according to any one of claims 1 and 2, characterized in that: The side wall of the placement cavity provided with the first through-hole is further provided with two screw holes, and the two screw holes are arranged on opposite sides of the first through-hole, and the screw holes are used for screwing the motor body.

4. The reduction gearbox bottom shell for a right-angle motor according to claim 3, characterized in that: The reduction gear mounting position is an annular boss, and the annular boss is used to clamp the bearing of the reduction gear.

5. The reduction gearbox bottom shell for a right-angle motor according to claim 3, characterized in that: The side wall of the placement cavity is provided with a clearance notch, and the clearance notch and the screw hole are respectively arranged on two opposite side walls of the placement cavity, and the clearance notch is used to make room for the disassembly and assembly of the screw.

6. The reduction gearbox bottom shell for a right-angle motor according to claim 5, characterized in that: The thickness of the side wall of the placement cavity where the screw hole is provided is greater than the thickness of the side walls of other parts of the placement cavity.

7. A reduction gearbox housing, characterized in that: It comprises a reduction gear box cover shell and a reduction gear box bottom shell as described in any one of claims 1 to 6, wherein the reduction gear box cover shell is adapted to the reduction gear box bottom shell.

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