Power mounting structure for windscreen wiper of vehicle

Abstract

The utility model discloses a vehicle windscreen wiper power installation structure, which solves the problem that some mechanical structures are damaged due to the fact that the liquid sealing performance of an existing installation structure cannot be well guaranteed, and adopts the technical scheme that the vehicle windscreen wiper power installation structure is used for installing a middle power output mechanism of a windscreen wiper. The device is characterized by comprising a shell with an opening part, a motor mounting cavity and a transmission structure mounting cavity which are communicated with each other are arranged in the shell, the opening part extends along the whole peripheries of the motor mounting cavity and the transmission structure mounting cavity, the transmission structure mounting cavity is used for mounting a transmission structure, and the motor mounting cavity is used for mounting a motor. A through extending opening is formed in the position corresponding to the transmission structure mounting cavity, and the extending opening is used for the power output mechanism to extend out; a positioning structure is arranged in the transmission structure installation cavity and used for being matched with the transmission structure.

Description

Technical Field

[0001] The utility model relates to a windshield wiper on a vehicle, in particular to a mounting structure for mounting a power mechanism on the windshield wiper. Background Art

[0002] In order not to affect the line of sight during driving, wipers are usually required to be installed on the front and rear windshields of the vehicle so as to clean the rain or stains on the glass. The structure of the wiper includes a transmission-connected motor, a transmission structure and a power output mechanism. The wiper blades are transmission-connected to the power output mechanism, and driven by the power output mechanism, the wiper blades sweep across the glass. The transmission structure and motor in the wiper are usually arranged inside the vehicle, while the power output mechanism needs to extend to the outside of the vehicle. The power output mechanism needs to extend to the outside of the vehicle body, and other power mechanisms are generally exposed. When the power output mechanism drives the wiper blades to move, rainwater from the outside sometimes penetrates into the power mechanism along the power output mechanism, and the erosion of rainwater will affect the transmission smoothness of the power mechanism.

[0003] Chinese patent document (publication number: CN 211196140U) discloses a rear wiper motor housing and rear wiper motor assembly. The housing comprises a motor mounting structure, an armature shaft retaining groove, a reduction helical gear cavity, an angle sensor mounting slot, and a motor output shaft mounting hole. The armature shaft retaining groove is located to the right of the motor mounting structure, with the center of the armature shaft retaining groove coinciding with the center of the motor mounting structure. The rear wiper motor housing and rear wiper motor assembly are characterized in that the reduction helical gear cavity is located behind the armature shaft retaining groove and is tangential to the reduction helical gear cavity. The angle sensor mounting slot is located on the reduction helical gear cavity adjacent to the armature shaft retaining groove, and the motor output shaft mounting hole is located in front of the armature shaft retaining groove. This invention reduces the overall length of the rear wiper motor assembly and achieves lightweighting.

[0004] After being installed on a vehicle, this type of wiper cannot ensure good liquid sealing with the outside world during use, which may cause erosion of some mechanical structures inside the wiper and affect the smooth operation of the power mechanism. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a vehicle wiper power installation structure, which can effectively improve the liquid sealing performance of the wiper power mechanism and provide protection for the power mechanism in the wiper.

[0006] In order to solve the technical problems, the technical solution of the utility model is: a vehicle wiper power mounting structure, used for installing the power output mechanism of the wiper, characterized in that it includes a shell with a mouth, the shell has a motor mounting cavity and a transmission structure mounting cavity that are connected, the mouth extends along the entire circumference of the motor mounting cavity and the transmission structure mounting cavity, the transmission structure mounting cavity is used to install the transmission structure, and the motor mounting cavity is used to install the motor, a transparent extension port is provided at the position corresponding to the transmission structure mounting cavity, and the extension port is for the power output mechanism to extend; a positioning structure is provided in the transmission structure mounting cavity, and the positioning structure is used to cooperate with the transmission structure.

[0007] The housing is typically made of hard plastic, such as PP, ABS, or iron, and serves as a primary anchor. The motor within the motor mounting cavity is in transmission connection with the transmission structure within the transmission mounting cavity. The motor's power output shaft is in transmission connection with the transmission mechanism, providing power to the PTO mechanism, which in turn drives the scraper blade to sweep across the glass.

[0008] Furthermore, the housing is provided with a recessed recess, which protrudes outward from the housing and communicates with the transmission structure mounting cavity, with the extension opening being located at the bottom of the recessed recess. The recessed recess can better accommodate the configuration of the power take-off mechanism and effectively improve the fit within the housing, thereby enhancing sealing.

[0009] Furthermore, a plurality of grooves are formed on the inner side of the sinkhole, extending from the mouth of the sinkhole to the bottom of the sinkhole, further increasing the matching area within the transmission structure installation cavity, and the matching grooves and protrusions on other structures play a role in matching positioning and improving the sealing effect.

[0010] Furthermore, the groove is formed by the wall of the sinkhole protruding outwards and deforming, which makes the shell wall thickness less necessary, saving the amount of shell material, and the deformation of the wall can also effectively improve the strength of the wall.

[0011] Furthermore, the bottom of the sink is provided with a plurality of transparent fixing holes, which are evenly distributed circumferentially outside the extension opening. Fixing screws are passed through the fixing holes to fix the corresponding structure provided in the transmission structure installation cavity, so that the structure has good stability in the housing.

[0012] Furthermore, a cover plate is provided on the opening of the housing, and the cover plate is located at the position of the transmission structure installation cavity. The transmission structure installation cavity is sealed by the provision of the cover plate, and the stability of the transmission structure can also be improved.

[0013] Furthermore, a coupling body is protruding from the outer surface of the transmission structure installation cavity, and a coupling hole is provided in the coupling body, and a fixing screw passing through the cover plate is connected to the coupling hole. The provision of the coupling body can facilitate the connection of the cover plate, and the connection of the cover plate to the housing is strong.

[0014] Furthermore, the positioning structure is a positioning opening that communicates with the transmission structure mounting cavity. The positioning opening is formed by the side wall of the housing being deformed by protrusion. A columnar body can be provided on the transmission structure and inserted into the positioning opening to achieve positioning of the transmission structure, thereby improving the operating stability of the transmission structure.

[0015] Compared with the prior art, the present invention has the following advantages: The housing includes a transmission structure mounting cavity and a motor mounting cavity, allowing the housing to be snapped onto the transmission structure and motor, thereby providing a certain degree of protection for the motor and transmission structure, preventing them from being corroded by rain and dust, and ensuring smooth transmission. By providing a positioning structure within the housing that cooperates with the transmission structure, the housing and transmission structure can be quickly assembled, which is beneficial for the stability of the transmission structure within the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front perspective view of the housing in the vehicle wiper power installation structure.

[0017] Figure 2 It is a back perspective view of the housing in the vehicle wiper power installation structure.

[0018] Figure 3 It is a three-dimensional diagram of the housing with a cover plate in the vehicle wiper power installation structure.

[0019] In the figure, 1. Shell; 2. Motor mounting cavity; 3. Transmission structure mounting cavity; 4. Sink; 5. Groove; 6. Positioning port; 7. Fixing hole; 8. Extension port; 9. Connector; 10. Cover plate. DETAILED DESCRIPTION

[0020] In conjunction with the drawings in the specification, the power installation structure of the vehicle wiper is arranged on the vehicle, and the power output mechanism of the wiper can be installed. The structure includes a shell 1 with an opening, and the shell 1 is in the shape of a half shell. A motor installation cavity 2 and a transmission structure installation cavity 3 are formed inside the shell 1 by molding. The motor installation cavity 2 and the transmission structure installation cavity 3 are connected, and the opening extends along the entire periphery of the motor installation cavity 2 and the transmission structure installation cavity 3. The transmission structure installation cavity 3 is used to install the transmission structure, which is generally a gear reduction reversing structure. The motor installation cavity 2 is used to install the motor, and the power output shaft on the motor realizes transmission connection through the position where the two installation cavities are connected.

[0021] A transparent extension port 8 is provided on the housing 1 at a position corresponding to the transmission structure mounting cavity 3. The extension port 8 is for the power output mechanism to extend. The power output mechanism is in transmission connection with the transmission structure. The outer end of the power output mechanism is connected to a wiper blade. Driven by the power output mechanism, the wiper blade sweeps the vehicle glass.

[0022] A positioning structure is provided in the transmission structure installation cavity 3, and the positioning structure is used to cooperate with the transmission structure. Figure 1 The positioning structure is shown as a positioning opening 6, which communicates with the transmission structure mounting cavity 3. Positioning opening 6 is formed by the sidewall of the housing 1 through outward protrusion deformation. The positioning structure can also be a protruding structure, while the transmission structure is provided with a recessed structure. During assembly of the housing 1, the positioning opening 6 on the housing 1 cooperates with the columnar body on the transmission structure to quickly assemble the housing 1 into place.

[0023] The shell 1 is provided with a sink 4, which protrudes toward the outside of the shell 1. The sink 4 is formed by the outward protrusion and deformation of the wall of the shell 1. The sink 4 is in communication with the transmission structure mounting cavity 3, and the extension port 8 is provided at the bottom of the sink 4. The bottom of the sink 4 is provided with a plurality of transparent fixing holes 7, which are evenly distributed circumferentially on the outside of the extension port 8. An inner lining made of elastic material can be provided in the shell 1. By fitting the outer surface of the inner lining with the inner wall surface of the shell 1, the protection provided by the shell 1 to the power structure therein can be effectively improved. By providing a hollow plug at the position of the inner lining corresponding to the sink 4, and passing the fixing screws through the fixing holes 7, the mechanical connection between the inner lining and the shell 1 can be achieved.

[0024] The inner side of the pit 4 is formed with a plurality of grooves 5, extending from the mouth of the pit 4 to the bottom of the pit 4. The grooves 5 are formed by the outward protrusion and deformation of the wall of the pit 4. Corresponding to the grooves 5, the outer side of the liner plug is provided with corresponding protrusions. The protrusions fit snugly with the inner side of the grooves 5, thereby improving the fit stability between the liner and the shell 1.

[0025] Figure 3 As shown in the figure, a cover plate 10 is provided on the opening of the housing 1. The cover plate 10 is located at the position of the transmission structure installation cavity 3 and does not extend into the position of the motor installation cavity 2. The cover plate 10 only seals the transmission structure in the transmission structure installation cavity 3. After the motor is installed in the motor installation cavity 2, the motor will protrude outside the motor installation cavity 2. A coupling body 9 is protrudingly provided on the outer surface of the transmission structure installation cavity 3. The coupling body 9 has a coupling hole. The fixing screw passing through the cover plate 10 is connected in the coupling hole, thereby achieving a fastening connection between the cover plate 10 and the housing 1.

Claims

1. A vehicle wiper power installation structure, used for installing the wiper's power output mechanism, characterized in that: It includes a shell with an opening, which has a motor installation cavity and a transmission structure installation cavity that are connected to each other. The opening extends along the entire circumference of the motor installation cavity and the transmission structure installation cavity. The transmission structure installation cavity is used to install the transmission structure, and the motor installation cavity is used to install the motor. A transparent extension port is provided at the position corresponding to the transmission structure installation cavity, and the extension port is used for the power output mechanism to extend; a positioning structure is provided in the transmission structure installation cavity, and the positioning structure is used to cooperate with the transmission structure.

2. The vehicle wiper power installation structure according to claim 1, characterized in that: The shell is provided with a sinking pit, which protrudes toward the outside of the shell and is communicated with the transmission structure installation cavity. The protruding port is arranged on the bottom of the sinking pit.

3. The vehicle wiper power installation structure according to claim 2, characterized in that: A plurality of grooves are formed on the inner side surface of the sinkhole, and the grooves extend from the mouth of the sinkhole to the bottom of the sinkhole.

4. The vehicle wiper power installation structure according to claim 3, characterized in that: The groove is formed by the wall of the sinkhole protruding and deforming outward.

5. The vehicle wiper power installation structure according to claim 2, 3 or 4, characterized in that: The bottom of the sinkhole is provided with a plurality of transparent fixing holes, which are evenly distributed in the circumferential direction on the outer side of the extension port.

6. The vehicle wiper power installation structure according to any one of claims 1 to 4, characterized in that: A cover plate is provided on the mouth of the shell, and the cover plate is located at the position of the transmission structure installation cavity.

7. The vehicle wiper power installation structure according to claim 6, characterized in that: A coupling body is protrudingly provided on the outer side of the transmission structure installation cavity, and a coupling hole is provided in the coupling body. A fixing screw passing through the cover plate is connected in the coupling hole.

8. The vehicle wiper power installation structure according to any one of claims 1 to 4, characterized in that: The positioning structure is a positioning opening, which is communicated with the transmission structure installation cavity. The positioning opening is formed by the side wall of the shell being deformed by protruding outward.

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