Wiper device and vehicle

Abstract

The present disclosure provides a wiper device for a vehicle, and a vehicle, the wiper device (100) comprising: a first pivot shaft (101) and a second pivot shaft (102), each configured to fix a wiper arm; a transmission mechanism (103), two ends thereof being connected to the first pivot shaft (101) and the second pivot shaft (102) respectively; a waterproof cover (104), configured to at least partially cover the transmission mechanism (103); a first through-hole (1041) and a second through-hole (1042) being provided at two ends of the waterproof cover (104) respectively, the first through-hole (1041) and the second through-hole (1042) being configured to allow the first pivot shaft (101) and the second pivot shaft (102), respectively, to pass through. The present disclosure also provides a vehicle comprising the wiper device.

Description

Wiper device and vehicle

[0001] The present disclosure relates to the field of vehicle wipers, in particular to a wiper device for a vehicle, and a vehicle.

[0002] Wipers are an essential component of vehicles, their main purpose being to wipe away rain water, snow water or dust, etc. falling on the glass of a vehicle window in bad weather (e.g. when it is raining or snowing, or during a sandstorm), so that the driver’s field of vision is not obstructed, to ensure safety of travel.

[0003] During rain, when the vehicle is being washed, or when the windscreen is being cleaned, wiper components might come into contact with water, which will cause corrosion of metal components such as a connecting rod mechanism, affecting the service life thereof. A waterproof cover may be provided above the connecting rod mechanism to prevent the latter from coming into contact with water. Existing solutions for waterproofing wipers generally involve separate waterproofing at different components of a wiper. However, existing solutions have problems such as being complicated to assemble and only providing local waterproofing.Summary of the Invention

[0004] Thus, an objective of the present disclosure is to provide a wiper device for a vehicle, and a vehicle comprising the wiper device, the wiper device being able to prevent fluids such as water from entering the wiper device, to improve the stability and service life of the wiper device.

[0005] This objective is achieved by means of the wiper device and vehicle described below.

[0006] The present disclosure provides a wiper device, comprising: a first pivot shaft and a second pivot shaft, each configured to fix a wiper arm; a transmission mechanism, two ends thereof being connected to the first pivot shaft and the second pivot shaft respectively; a waterproof cover, configured to at least partially cover the transmission mechanism; a first through-hole and a second through-hole being provided at two ends of the waterproof cover respectively, the first through-hole and the second through-hole being configured to allow the first pivot shaft and the second pivot shaft, respectively, to pass through.

[0007] In an embodiment, the waterproof cover covers the entirety of a path of movement of the transmission mechanism.

[0008] In an embodiment, a first fixing part surrounding the first pivot shaft and a second fixing part surrounding the second pivot shaft are formed at the circumference of the first through-hole and the second through-hole of the waterproof cover, respectively.

[0009] In an embodiment, the first fixing part or the second fixing part is made of a flexible material.

[0010] In an embodiment, the waterproof cover is formed in one piece by a two-shot injection moulding process.

[0011] In an embodiment, the waterproof cover comprises a first snap-fit clip and a second snap-fit clip, configured to be arranged near the first through-hole and the second through-hole, respectively.

[0012] In an embodiment, the waterproof cover comprises a drain for guiding water outside the waterproof cover.

[0013] In an embodiment, the drain is arranged at an end of the waterproof cover and at a position close to the pivot shafts.

[0014] In an embodiment, the waterproof cover is provided with a sponge at a side close to a motor.

[0015] In an embodiment, a protruding part is formed on the waterproof cover, the protruding part being used to accommodate a wiper motor.

[0016] In an embodiment, the shape of the protruding part is approximately matched to an armature housing of the wiper motor.

[0017] In an embodiment, a fixing structure is formed on the protruding part, the fixing structure being fixed to a peripheral surface of the armature housing of the wiper motor.

[0018] In an embodiment, the fixing structure is configured as a pair of clamping pieces.

[0019] In an embodiment, the fixing structure is configured as an annular member, arranged on an inner side of the protruding part and surrounding the peripheral surface of the armature housing of the wiper motor.

[0020] In an embodiment, the fixing structure is formed by extending the protruding part towards a side surface of the armature housing of the wiper motor.

[0021] In an embodiment, a drain is formed on the waterproof cover at a position close to the protruding part.

[0022] The present disclosure further provides a vehicle, comprising the wiper device described above.

[0023] The embodiments of the present disclosure have the following advantages: the wiper device of the present application can effectively prevent fluid such as water from flowing to the transmission mechanism and other positions in the wiper device, and has excellent drainage, being able to drain away fluid promptly, thereby ensuring dryness at these positions and increasing the service life of the wiper device. Furthermore, the design of the waterproof cover of the present application facilitates assembly and can effectively reduce the complexity of assembly.Brief Description of the Drawings

[0024] A better understanding of the advantages and objective of the present disclosure can be gained from the preferred embodiments of the present disclosure described in detail below with reference to the drawings. To better illustrate the relationships among components in the drawings, the drawings are not drawn to scale. In the drawings:

[0025] shows a schematic drawing of a wiper device according to an embodiment of the present disclosure.

[0026] shows a schematic drawing of a wiper device according to an embodiment of the present disclosure, viewed from another angle.

[0027] shows a schematic drawing of a waterproof cover of a wiper device according to an embodiment of the present disclosure;shows a schematic drawing of a waterproof cover of a wiper device according to an embodiment of the present disclosure.

[0028] shows a sectional drawing of the wiper device inat A-A.

[0029] shows a sectional drawing of the wiper device inat B-B.

[0030] shows a schematic drawing of a wiper device according to an embodiment of the present disclosure.

[0031] shows a schematic drawing of a wiper device according to an embodiment of the present disclosure, viewed from another angle.

[0032] shows a sectional drawing of the wiper device inat position E-E.Detailed Description of the Invention

[0033] In order to clarify the technical solution and its objective and advantages of the present disclosure, the technical solutions of embodiments of the present disclosure are described clearly and completely below in conjunction with the drawings of particular embodiments of the present disclosure. In the drawings, identical reference numerals denote identical components. It must be explained that the embodiments described are some, not all, of the embodiments of the present disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of the present disclosure without the need for inventive effort shall fall within the scope of protection of the present disclosure.

[0034] Unless otherwise defined, the technical or scientific terms used herein shall have the common meanings understood by those skilled in the art. The words "first", "second", and the like used in the description and claims of the patent application disclosed herein do not indicate any order, quantity or importance, being merely used to distinguish different component parts. Likewise, words such as “a” or “one” do not necessarily represent a quantity limit. Words such as "comprising", "including” or "having" mean that the element or object preceding the word covers the elements or objects listed after the word and equivalents thereof, without excluding other elements or objects. Words such as "connection” or "communication”, rather than being limited to the physical or mechanical connection or communication shown in a drawing, may include connection or communication equivalent thereto, irrespective of whether it is direct or indirect. The terms “upper”, “lower”, “left”, “right” and the like are only used to indicate a relative positional relationship, and when the absolute position of a described object changes, the relative positional relationship may also change accordingly.

[0035] Various embodiments of the present disclosure will be described in detail below with reference to Figs. 1 to 6.

[0036] shows a schematic drawing of a wiper device according to an embodiment of the present disclosure; a wiper is generally arranged on a windscreen of a vehicle (e.g. a motor vehicle, an electric vehicle or a hybrid vehicle, etc.). The wiper device 100 generally comprises a wiper motor 200, a transmission mechanism 103 driven by the wiper motor 200, a fixing rod 1031 for supporting the transmission mechanism 103 and fixing the wiper motor 200, and a first pivot shaft 101 and a second pivot shaft 102 which are connected to the transmission mechanism 103. A first wiper arm and a second wiper arm are connected to the first pivot shaft 101 and the second pivot shaft 102 respectively. Under the driving action of the wiper device 100, the first wiper arm and the second wiper arm move back and forth between an upper reversal position and a lower reversal position to wipe the front glass of the vehicle.

[0037] In the present application, the wiper device further comprises a waterproof cover 104. The waterproof cover 104 is arranged above the transmission mechanism 103, and has an upper surface formed as a water-receiving surface, for receiving water entering a front enclosure in which the wiper device is arranged, and preventing the wiper device from coming into contact with water. As shown in Figs. 1 - 3, the waterproof cover 104 is configured to at least partially cover the transmission mechanism 103, so as to prevent corrosion of the transmission mechanism by liquids such as rain water entering the vehicle.

[0038] The waterproof cover 104 is substantially formed as a plate, and dimensioned to at least partially cover the various components of the wiper device. If the transmission mechanism of the wiper device 100 is a moving device such as a four-connecting-rod mechanism, the waterproof cover 104 preferably covers the contour of the entire path of movement of the transmission mechanism; such a configuration can achieve comprehensive waterproofing of the wiper device 100.

[0039] A first through-hole 1041 and a second through-hole 1042 are provided at two ends of the waterproof cover 104 respectively, the first through-hole 1041 and the second through-hole 1042 being configured to allow the first pivot shaft 101 and the second pivot shaft 102, respectively, to pass through. The shapes of the first through-hole 1041 and the second through-hole 1042 are configured to correspond to outer contours of the first pivot shaft 101 and the second pivot shaft 102, respectively, and may thus be substantially circular. By fitting the first through-hole 1041 and the second through-hole 1042 round the outside of the first pivot shaft 101 and the second pivot shaft 102, the waterproof cover 104 can be located and fixed. A main body of the waterproof cover 104 extends radially outwards from the first through-hole 1041 and the second through-hole 1042 to cover the transmission mechanism of the wiper device 100.

[0040] As shown in Figs. 3, 5 and 6, a first fixing part 1043 surrounding the first pivot shaft 101 and a second fixing part 1044 surrounding the second pivot shaft 102 are formed at the circumference of the first through-hole 1041 and the second through-hole 1042 of the waterproof cover 104, respectively. The fixing part is arranged in tubular form on a peripheral surface of the pivot shaft, extending in the direction of extension of the pivot shaft and arranged in close contact with the pivot shaft, and is thus able to prevent the pivot shaft from coming into contact with water, and also to prevent water from seeping down from an edge of the pivot shaft, thus ensuring effective waterproofing. In another example, a shaft sleeve is provided around the peripheral surface of the pivot shaft, and correspondingly, the first fixing part and the second fixing part are arranged around the shaft sleeve. The present application does not constitute a specific restriction.

[0041] In an example, ribs are provided on inner sides of the first fixing part 1043 and the second fixing part 1044 in the direction of extension of the pivot shafts. The rib can ensure an interference fit between the fixing part and the pivot shaft, enhancing the stability of connection between the fixing part and the pivot shaft, and preventing sliding in an axial direction.

[0042] The waterproof cover 104 is preferably made of a hard resin material, which can reduce mass while ensuring the strength of the waterproof cover, to obtain a light and stable structure. Of course, the waterproof cover 104 could also be made of another material such as metal, and the present application imposes no specific restrictions.

[0043] In an example, as shown in, the first fixing part 1043 or the second fixing part 1044 is made of a flexible material. Taking as an example the case where the second fixing part 1044 is made of a flexible material, during assembly, the first pivot shaft 101 is first inserted into the first through-hole 1041 of the waterproof cover 104, then the position of the waterproof cover 104 is adjusted, then the second pivot shaft 102 is inserted into the second through-hole 1042 of the waterproof cover 104. Since the second fixing part 1044 is made of a flexible material, the second pivot shaft 102 can be mounted and fixed in the second through-hole 1042 easily. Specifically, the flexible material forming the first fixing part 1043 or the second fixing part 1044 may be rubber or another suitable material. Preferably, a portion of the waterproof cover 104 adjacent to the waterproof cover 104 of the first fixing part 1043 or the second fixing part 1044 made of a flexible material is also made of a flexible material, to further facilitate assembly.

[0044] The waterproof cover 104 is formed in one piece by an injection moulding process. Specifically, the main body of the waterproof cover 104 made of a hard resin material and the fixing part made of a flexible material are formed in one piece by a two-shot injection moulding process. By forming the waterproof cover 104 as a single component, a more streamlined structure can be obtained, the assembly process can be simplified, and a better waterproofing effect can be achieved.

[0045] A snap-fit clip is provided on the waterproof cover 104; the snap-fit clip is arranged on the opposite side of the waterproof cover from the pivot shaft, i.e. on the underside of the waterproof cover, and corresponds to a locating hole on the wiper device. As shown in Figs. 2 and 3, the waterproof cover 104 comprises a first snap-fit clip 105 and a second snap-fit clip 106, configured to be arranged near the first through-hole 1041 and the second through-hole 1042, respectively. Having the first snap-fit clip 105 and the second snap-fit clip 106 arranged near the first through-hole 1041 and the second through-hole 1042, respectively, allows the locating hole for mating with the snap-fit clip to be formed on a shaft seat of the pivot shaft, to obtain a compact structure of the wiper device 100. The snap-fit clip design allows the waterproof cover to be stably fixed to the wiper device 100, and can prevent it from detaching from the wiper device.

[0046] There may be one or more first snap-fit clip 105, and there may be one or more second snap-fit clip 106. In the example shown in, there is one first snap-fit clip 105 and two second snap-fit clips 106, but it should be known that other numbers of snap-fit clips are also possible; the present application imposes no specific restrictions.

[0047] As shown in, the waterproof cover 104 is configured to be recessed, and open in an upper region; at a side near the wiper motor 200, an edge of the waterproof cover stands up relative to the main body of the waterproof cover 104; at a side opposite the wiper motor 200, an edge of the waterproof cover is bent down relative to the main body of the waterproof cover 104. Such a design can prevent fluid such as water from flowing towards the wiper motor 200; instead, it will flow out from the side opposite the wiper motor 200. In addition, the waterproof cover 104 is provided with a drain, for guiding fluid such as water to a region outside the waterproof cover 104. The design of the drain can effectively improve waterproofing of the waterproof cover 104 and drainage therefrom.

[0048] The drain may be designed as multiple drains. A first drain 1091 and a second drain 1092 are arranged near the first pivot shaft 101 and the second pivot shaft 102 respectively, and suitably drain away fluid such as water that drips into the vicinity of the pivot shaft, preventing it from entering the first pivot shaft 101 and the second pivot shaft 102. The first drain 1091 and the second drain 1092 each form a U-shaped cross section with edge side walls of the waterproof cover 104 at the bottom of the drain and two sides thereof; each drain is open in a direction away from the pivot shaft, and the bottom of the drain is formed as a downward slope towards the opening of the drain.

[0049] A third drain 1093 is formed at an end close to a side of the waterproof cover 104 close to the second pivot shaft 102. A fourth drain 1094 is formed between the second drain 1492 and the wiper motor 200. Edge side walls of the waterproof cover 104 at two sides form a U-shaped cross section; the third drain 1093 and the fourth drain 1094 are each open in a direction away from the pivot shaft, and the bottom of the drain is formed as a downward slope towards the opening of the drain, so as to guide water outside the wiper device.

[0050] As shown in, the waterproof cover 104 is provided with a sponge 1049 at a side close to the motor, to prevent the waterproof cover 104 from striking the wiper motor 200 during vibration, and to provide cushioning to ensure normal operation of the wiper motor 200. The sponge 1049 may be bonded to an edge of the waterproof cover 104 that stands up. Of course, a cushioning material other than sponge could also be used to prevent the waterproof cover 104 from striking the wiper motor 200; the present application imposes no specific restrictions.

[0051] As shown in, a reinforcing structure may also be formed on the main body of the waterproof cover 104, to increase the strength of the waterproof cover 104 and prevent it from deforming.

[0052] In another example, as shown in Figs. 7 - 9, the waterproof cover 104 of the wiper device according to the present application also at least partially covers the wiper motor 200, so as to prevent fluid such as water from flowing to the position of the wiper motor 200, and ensure normal operation of the wiper motor.

[0053] Specifically, a protruding part 1045 is formed on the waterproof cover 104, the protruding part 1045 being used to accommodate the wiper motor 200. By forming the protruding part 1045 on the substantially plate-like waterproof cover 104 to accommodate the wiper motor, structural compactness of the wiper device 100 can be ensured while providing protection for the motor, without taking up any additional space.

[0054] In an example, the shape of the protruding part 1045 is approximately matched to an armature housing of the wiper motor 200. Such a configuration can facilitate installation of the waterproof cover.

[0055] As shown in Figs. 8 and 9, a fixing structure is formed on the protruding part 1045, the fixing structure being fixed to a peripheral surface of the armature housing of the wiper motor. By fixing the fixing structure formed on the protruding part 1045 to a motor housing, the waterproof cover 104 can be fixed securely, preventing it from falling off accidentally.

[0056] Specifically, as shown in, the fixing structure 1046 may be configured as a pair of clamping pieces.

[0057] In another example, the fixing structure 1046 is configured as an annular member, arranged on an inner side of the protruding part 1045 and surrounding the peripheral surface of the armature housing of the wiper motor 200. The annular member and clamping pieces can ensure effective fixing with less material, so can reduce costs.

[0058] In another example, the fixing structure 1046 may also be formed by extending the protruding part 1045 towards a side surface of the armature housing of the wiper motor, i.e. the protruding part 1045 extends further towards a side surface of the motor housing and covers at least part of the side surface.

[0059] The fixing structure 1046 preferably uses the same material as the waterproof cover 104, and is integrally formed with the waterproof cover 104.

[0060] As shown in, the waterproof cover 104 is configured to be recessed, and open in an upper region; at a side near the wiper motor 200, an edge of the waterproof cover stands up relative to the main body of the waterproof cover 104; at a side opposite the wiper motor 200, an edge of the waterproof cover is bent down relative to the main body of the waterproof cover 104. Such a design can prevent fluid such as water from flowing towards the wiper motor 200; instead, it will flow out from the side opposite the wiper motor 200. In addition, the waterproof cover 104 is also provided with a drain 109, for guiding fluid such as water outside the waterproof cover 104. The design of the drain can effectively improve waterproofing of the waterproof cover 104 and drainage therefrom.

[0061] As shown in, the drain 109 is arranged on the waterproof cover 104 close to the protruding part 1045, so as to promptly drain away water in the vicinity of the motor 200, and prevent it from entering the motor.

[0062] Through the above design, the wiper device of the present application can effectively prevent fluid such as water from flowing to the transmission mechanism and other positions in the wiper device, and has excellent drainage, being able to drain away fluid promptly, thereby ensuring dryness at these positions and increasing the service life of the wiper device. Furthermore, the design of the waterproof cover of the present application facilitates assembly and can effectively reduce the complexity of assembly.

[0063] The vehicle of the present disclosure comprises the wiper device described above, and has the advantages of the wiper device.

[0064] In addition, the technical features disclosed above are not limited to combinations of the disclosed features with other features, and those skilled in the art could combine technical features in other ways according to the objective of the invention, to realize the objective of the present disclosure.

Claims

Wiper device (100), characterized by comprising:a first pivot shaft (101) and a second pivot shaft (102), each configured to fix a wiper arm;a transmission mechanism (103), two ends thereof being connected to the first pivot shaft (101) and the second pivot shaft (102) respectively;a waterproof cover (104), configured to at least partially cover the transmission mechanism (103); a first through-hole (1041) and a second through-hole (1042) being provided at two ends of the waterproof cover (104) respectively, the first through-hole (1041) and the second through-hole (1042) being configured to allow the first pivot shaft (101) and the second pivot shaft (102), respectively, to pass through.Wiper device according to Claim 1, characterized in that the waterproof cover (104) covers the entirety of a path of movement of the transmission mechanism (103).Wiper device according to Claim 2, characterized in that a first fixing part (1043) surrounding the first pivot shaft (101) and a second fixing part (1044) surrounding the second pivot shaft (102) are formed at the circumference of the first through-hole (1041) and the second through-hole (1042) of the waterproof cover (104), respectively.Wiper device according to Claim 3, characterized in that the first fixing part (1043) or the second fixing part (1044) is made of a flexible material.Wiper device according to Claim 4, characterized in that the waterproof cover (104) is formed in one piece by a two-shot injection moulding process.Wiper device according to Claim 1, characterized in that the waterproof cover (104) comprises a first snap-fit clip (105) and a second snap-fit clip (106), configured to be arranged near the first through-hole (1041) and the second through-hole (1042), respectively.Wiper device according to Claim 1, characterized in that the waterproof cover (104) comprises a drain for guiding water outside the waterproof cover (104).Wiper device according to Claim 7, characterized in that the drain is arranged at an end of the waterproof cover (104) and at a position close to the first pivot shaft (101) and the second pivot shaft (102).Wiper device according to any one of Claims 1 - 8, characterized in that the waterproof cover (104) is provided with a sponge (1049) at a side close to a motor.Wiper device according to Claim 1, characterized in that a protruding part (1045) is formed on the waterproof cover (104), the protruding part being used to accommodate a wiper motor (200).Wiper device according to Claim 10, characterized in that a fixing structure (1046) is formed on the protruding part (1045), the fixing structure (1046) being fixed to a peripheral surface of the armature housing of the wiper motor (200).Wiper device according to Claim 11, characterized in that the fixing structure (1046) is configured as a pair of clamping pieces.Wiper device according to Claim 12, characterized in that the fixing structure (1046) is configured as an annular member, arranged on an inner side of the protruding part (1045) and surrounding the peripheral surface of the armature housing of the wiper motor (200).Wiper device according to any one of Claims 10 - 13, characterized in that a drain (109) is formed on the waterproof cover (104) at a position close to the protruding part (1045).Vehicle, characterized in that the vehicle comprises the wiper device according to any one of Claims 1 - 14.

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