CN213413704U

CN213413704U - Rotational speed element for a motor vehicle engine gearbox

Info

Publication number: CN213413704U
Application number: CN202022523624.5U
Authority: CN
Inventors: 史海龙
Original assignee: Changzhou Leili Pressure Controller Co ltd
Current assignee: Changzhou Leili pressure controller Co., Ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-06-11
Anticipated expiration: 2030-11-04

Abstract

The utility model relates to a rotational speed component for automobile engine gearbox, which comprises a housin, an apron, the transmission shaft, the ring gear, hall element and PCB board, the cavity has in the casing, the apron closes with the casing lid, the cavity is including the last cavity that is linked together, lower cavity, the diameter of cavity is less than the diameter of last cavity down, the transmission shaft inserts down in the cavity and rotates with the casing to be connected, the ring gear is fixed on the transmission shaft top, hall element is fixed in the cavity down and corresponds the setting in ring gear one side, the PCB board sets up the step department between last cavity and lower cavity, fill epoxy between PCB board and the apron, lead-out wire on the PCB board passes the apron and stretches out outside the cavity. This a rotational speed component for automobile engine gearbox simple structure, convenient assembling, easy to maintain, the PCB board installation is stable firm, and epoxy is flexible spacing through leading to the groove in its top, and it is spacing through logical groove and step in the bottom, can not lead to PCB to damage because of the vibration to life has been guaranteed.

Description

Rotational speed element for a motor vehicle engine gearbox

The technical field is as follows:

the utility model relates to a rotational speed component technical field especially relates to a rotational speed component for automobile engine gearbox.

Background art:

the existing rotating speed element is generally fixed with a gear ring at the tail end of a transmission shaft, and a detection element is fixed on the side surface of the transmission shaft by using a mounting bracket. And is external, and the length is longer. When the gear ring and the probe of the detection element are installed in this way, the gear ring and the probe of the detection element are exposed in the air, and foreign matters or liquid easily enter an action area in the running process of a vehicle to influence normal detection and rotation.

The utility model has the following contents:

to the above problem, the utility model provides a simple structure, convenient assembling, be convenient for maintain, the reliable and stable rotational speed component that is used for automobile engine gearbox of operation

The utility model discloses a realize through following technical scheme:

the utility model provides a rotational speed component for automobile engine gearbox, includes casing, apron, transmission shaft, ring gear, hall element and PCB board, has the cavity in the casing, the apron closes with the casing lid, the cavity is including last cavity, the lower cavity that is linked together, the diameter of cavity is less than the diameter of last cavity down, the transmission shaft inserts down in the cavity and rotates with the casing to be connected, the ring gear is fixed on the transmission shaft top, hall element is fixed under in the cavity and corresponds the setting in ring gear one side, the PCB board sets up the step department between last cavity and lower cavity, fills epoxy between PCB board and the apron, and lead-out wire on the PCB board passes the apron and stretches out outside the upper cavity.

Because the PCB board is heterotypic board, in order to guarantee the validity of PCB assembly to avoid it to take place to rotate or rock, logical groove has been seted up to the upper chamber lateral wall, lead to the groove top and run through the casing, its bottom extends to the step department between last cavity and the lower cavity, PCB board one end sets up at logical inslot.

Preferably, the transmission shaft is rotatably connected with the housing through a plurality of bearings.

In order to facilitate assembly, the cover plate is fixedly connected with the shell through screws.

In order to ensure the sealing property, a protective coil is arranged between the cover plate and the leading-out wire.

In order to facilitate the assembly of the rotating speed element, a plurality of kidney-shaped holes are formed in the shell.

The utility model has the advantages that: this a rotational speed component for automobile engine gearbox simple structure, convenient assembling, easy to maintain, the PCB board installation is stable firm, and epoxy is flexible spacing through leading to the groove in its top, and it is spacing through logical groove and step in the bottom, can not lead to PCB to damage because of the vibration to life has been guaranteed.

Description of the drawings:

FIG. 1 is a cross-sectional view of a rotational speed element for an automotive engine transmission according to the present invention;

fig. 2 is a top view of the housing of the present invention.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be clearly and clearly defined.

As shown in fig. 1, the rotating speed component for the automobile engine gearbox comprises a shell 1, a cover plate 8, a transmission shaft 2, a gear ring 5, a hall element 6 and a PCB 7, wherein the cover plate 8 is fixed with the top end of the shell 1 through a screw 11, a cavity is arranged in the shell 1, the cavity comprises an upper cavity 3 and a lower cavity 4 which are communicated, the diameter of the lower cavity 4 is smaller than that of the upper cavity 3, the transmission shaft 2 is inserted into the lower cavity 4 and is rotationally connected with the shell 1 through a bearing 12, the gear ring 5 is fixed at the top end of the transmission shaft 2, the Hall element 6 is fixed in the lower cavity 4 and correspondingly arranged on one side of the gear ring 5, the PCB 5 is arranged at a step between the upper cavity 3 and the lower cavity 4, epoxy resin is filled between the PCB 7 and the cover plate 8, and an outgoing line 9 on the PCB 7 penetrates through a protective coil 10 on the cover plate 8 and extends out of the upper cavity 3.

As shown in fig. 2, a rectangular through groove 13 is formed in the side wall of the upper cavity of the housing 1, the top end of the through groove 13 penetrates through the housing 1, the bottom end of the through groove extends to a step 14 between the upper cavity and the lower cavity, and one end of the PCB is arranged in the through groove to realize limiting; in addition, a plurality of kidney-shaped holes 15 are formed in the shell 1 and used for assembling the rotating speed element.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "side", "end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "disposed," "provided," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Finally, it should be noted that: the above embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a rotational speed component for automobile engine gearbox, includes casing, apron, transmission shaft, ring gear, hall element and PCB board, has the cavity in the casing, the apron closes its characterized in that with the casing lid: the cavity is including last cavity, the lower cavity that is linked together, the diameter of cavity is less than the diameter of last cavity down, the transmission shaft inserts down in the cavity and rotates with the casing to be connected, the ring gear is fixed on the transmission shaft top, hall element is fixed and is corresponded the setting in ring gear one side in the cavity down, the PCB board sets up the step department between last cavity and the lower cavity, fills epoxy between PCB board and the apron, and the lead-out wire on the PCB board passes the apron and stretches out outside the upper cavity.

2. A rotational speed member for an automobile engine transmission according to claim 1, characterized in that: go up the cavity lateral wall and seted up logical groove, lead to the groove top and run through the casing, its bottom extends to the step department between last cavity and the lower cavity, PCB board one end sets up at logical inslot.

3. A rotational speed member for an automobile engine transmission according to claim 1, characterized in that: the transmission shaft is rotatably connected with the shell through a plurality of bearings.

4. A rotational speed member for an automobile engine transmission according to claim 1, characterized in that: the cover plate is fixedly connected with the shell through screws.

5. A rotational speed member for an automobile engine transmission according to claim 1, characterized in that: and a protective coil is arranged between the cover plate and the outgoing line.

6. A rotational speed member for an automobile engine transmission according to claim 1, characterized in that: the shell is provided with a plurality of waist-shaped holes.