A vehicle wiper arm installation calibration device and calibration method

Abstract

The present invention provides a vehicle wiper arm installation verification device, including contact A, contact B, contact C, and contact D arranged on a windshield; contact B and contact D are both connected to the vehicle ground, and contact A and contact C are both electrically connected to a controller; the controller is in communication connection with a prompt unit; the wiper brush is made of conductive rubber material; when one of the wiper brushes contacts with contact A and contact B at the same time, contact A and contact B are turned on, and after the controller detects that contact B is grounded, the control prompt unit sends a prompt signal; when the other wiper brush contacts with contact C and contact D at the same time, contact C and contact D are turned on, and after the controller detects that contact D is grounded, the control prompt unit sends a prompt signal. The present invention embeds contacts on the windshield, and uses conductive wiper brushes to cooperate with contacts to achieve rapid capture of the initial installation position, without the need for naked eye observation, with high precision and high speed.

Description

Technical Field

[0001] The invention relates to the technical field of automobile wiper arm installation, in particular to an automobile wiper arm installation calibration device and a calibration method. Background Art

[0002] As an important subsystem of the car, the wiper system is responsible for cleaning the car windows and ensuring a clear view for the passengers. The current mainstream wiper system consists of a wiper motor and linkage mechanism, wiper arm, wiper brush, etc. Due to the limitations of the front hood decoration, glass, visibility, etc. of each car model, it is generally difficult to design the wiper system into a platform / modular product.

[0003] As far as the design of wiper blades is concerned, in the early stage of data verification, it is necessary to comprehensively consider the status of surrounding parts such as the glass curvature, the A-pillar of the vehicle, and the front hood decorative parts, and after appropriately adjusting their posture, design wiper blades that meet regulations and customer needs.

[0004] After the design of the wiper wiper is frozen, it will have an initial position on the glass. In order to facilitate the installation of the wiper wiper at the initial design position during installation, strip or dot markings are generally added to the glass to guide the installer to install it correctly.

[0005] During the installation process, the wiper blade must first be fixed to the wiper arm by snap-fitting. After the above pre-installation is completed, the operator installs the wiper arm on the output shaft of the wiper motor and the connecting rod mechanism through the nut. During this process, it is necessary to ensure that the wiper blade covers the wiper blade installation reference point before tightening the installation nut. Since the wiper blade installation reference point is far away from the operator and the reference point is small, it is not conducive for the operator to intuitively and quickly find the reference point, and then the wiper blade installation reference is lost, resulting in inadequate installation and affecting the performance of the wiper system.

[0006] In order to avoid the above problems, the publication number CN 207104740 U proposes a solution to achieve accurate positioning of the wiper arm and the wiper brush by adding a wiper arm positioning tool. Specifically, the wiper arm positioning tool includes a wiper arm positioning mechanism for positioning the wiper arm to be installed at the installation position and a tool positioning mechanism for holding the wiper arm positioning mechanism on the car. The wiper arm positioning mechanism includes two mounting blocks that can position the two wiper arms once respectively, simplifying the positioning process. The tool positioning mechanism includes a positioning pin and a tool positioning profiling block, so that the positioning tool can be held, simplifying the positioning process and manual operation.

[0007] The above scheme can position the installation of the wiper arm and wiper wiper to the designed state, but the tooling involved in this scheme is large in size. During use, the tooling needs to be pre-installed on the vehicle before installing the wiper arm, which increases the production steps and reduces the production cycle and efficiency. Summary of the invention

[0008] The technical problem to be solved by the present invention is how to quickly and accurately locate the installation position of the wiper arm when installing it.

[0009] The present invention solves the above technical problems through the following technical means:

[0010] A vehicle wiper arm installation verification device includes contact A, contact B, contact C, and contact D arranged on a windshield; the connection line between contact A and contact B, and the connection line between contact C and contact D are respectively the initial installation positions of two wipers; contact B and contact D are both connected to the vehicle ground, and contact A and contact C are both electrically connected to a controller; the controller is in communication connection with a prompt unit; the wiper brush is made of conductive rubber material; when one of the wiper brushes contacts with contact A and contact B at the same time, contact A and contact B are turned on, and after the controller detects that contact B is grounded, the prompt unit is controlled to send a prompt signal; when the other wiper brush contacts with contact C and contact D at the same time, contact C and contact D are turned on, and after the controller detects that contact D is grounded, the prompt unit is controlled to send a prompt signal. The present invention embeds contacts on the windshield and uses conductive wiper brushes to cooperate with contacts to achieve rapid capture of the initial installation position, without the need for naked eye observation, with high precision and high speed.

[0011] Furthermore, a hole is opened on the windshield, and a conductive material is melt-cast in the hole to form a contact point.

[0012] Furthermore, the hole is a variable diameter hole, the portion facing the windward side is a large diameter portion, and the portion facing the leeward side is a small diameter portion.

[0013] Furthermore, one end of the contact facing the windward side is flush with the windshield, and the other end protrudes out of the leeward side to form a large-sized plug, and the plug forms a wiring pin.

[0014] Furthermore, the contact A, contact B, contact C, and contact D are all made of copper or aluminum.

[0015] Furthermore, the lower edge of the windshield has a black border, and a first sound insulation foam is sandwiched between the lower edge of the black border and the heater pressure trim assembly, and a second sound insulation foam is sandwiched between the upper edge of the black border and the instrument panel. The area formed by the black border, the first sound insulation foam and the second sound insulation foam is not visible inside or outside the vehicle; contacts are arranged on the black edge, and the inner side of the contacts is electrically connected to the heater pressure trim assembly through a power cord; the heater pressure trim assembly is short-circuited to the battery of the entire vehicle.

[0016] Furthermore, the controller is a controller carried by the vehicle itself.

[0017] Furthermore, the controller will control the prompt unit to send out a prompt signal only after the first time the contact B or the contact D is grounded and the time exceeds the set time.

[0018] Furthermore, the prompt signal is a sound signal or a light signal.

[0019] Corresponding to the above-mentioned device, the present invention also provides a method for installing and verifying a car wiper arm, first fixing the wiper wiper and the wiper arm, then preliminarily fixing the rotating end of the wiper arm to the corresponding position of the vehicle body, and then rotating the wiper arm to drive the wiper wiper to move until the wiper wiper contacts with contact A and contact B at the same time, or contacts with contact C and contact D at the same time, so that contact A is conductive with contact B, or contact C is conductive with contact D; after the controller obtains the contact conduction signal, it controls the prompt unit to send a prompt signal.

[0020] The advantages of the present invention are:

[0021] The present invention embeds contacts on the windshield and uses conductive wiper brushes to cooperate with the contacts to achieve rapid capture of the initial installation position without the need for naked eye observation, with high precision and high speed.

[0022] The I-shaped contact design prevents it from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the windshield wiper clamping structure in an embodiment of the present invention;

[0024] Figure 2 It is a schematic diagram of the installation of the wiper arm and the wiper brush in an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the installation of a wiper system in an embodiment of the present invention;

[0026] Figure 4 Schematic diagram of the relative position between an operator and a reference installation point of a wiper when installing a wiper system in an embodiment of the present invention;

[0027] Figure 5 It is a schematic diagram of the positions of the wiper arm and the wiper wiper after they are installed in place and the reference installation point in an embodiment of the present invention;

[0028] Figure 6 Schematic diagram of a wiper rubber strip calibration circuit in an embodiment of the present invention;

[0029] Figure 7 It is a schematic diagram of the installation of the vehicle body control device and the installation prompt device in the embodiment of the present invention;

[0030] Figure 8 A schematic diagram of the logic for determining the installation position of the wiper rubber strip according to an embodiment of the present invention;

[0031] Fig. 9 A diagram showing the connection relationship between the contact and the sheet metal part in an embodiment of the present invention;

[0032] Fig.10 Schematic diagram of the structure of the contacts and the windshield in an embodiment of the present invention. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The present embodiment provides a car wiper arm installation verification device, which is used to quickly determine whether the installation position is accurate when the wiper arm is installed. It includes contact A7, contact B8, contact C7', and contact D8' set on the windshield; the connection line between contact A7 and contact B8, and the connection line between contact C7' and contact D8 are the initial installation positions of the two wipers respectively; contact B8 and contact D8' are connected to the body sheet metal through wires to achieve grounding. Contact B8 and contact D8' can generally be connected to the sheet metal closer to the contact position. Fig. 9 As shown, the bottom of the windshield has a black border, the lower edge of the black border is the first sound insulation foam 12 of the glass, the upper edge of the black border is in close contact with the second sound insulation foam 120 on the instrument panel 30, the first sound insulation foam 12 is in close contact with the warm air pressure trim assembly 20 (sheet metal, short-circuited with the vehicle battery, can be considered as the power ground of the vehicle), the first sound insulation foam 12, the black border of the windshield, the second sound insulation foam 120, and the warm air pressure trim assembly 20 form a relatively closed area, which is not visible inside or outside the vehicle. Four contacts are set in the black border area of ​​the windshield, and the power line is directly overlapped (welded) with the warm air pressure trim assembly 20 to form a contact ground. Then, contacts A7 and C7 are electrically connected to the controller; the controller is communicatively connected to the prompt unit; the wiper wiper is made of conductive rubber; when one of the wiper wipers is in contact with contacts A7 and B8 at the same time, contacts A7 and B8 are conducted, and after the controller detects that contact B8 is grounded, the prompt unit is controlled to send a prompt signal; when the other wiper wiper is in contact with contacts C7' and D8' at the same time, contacts C7' and D8' are conducted, and after the controller detects that contact D8' is grounded, the prompt unit is controlled to send a prompt signal.

[0035] In this embodiment, the specific connection relationship between the contact point and the windshield is as follows: Fig.10As shown, a hole is made on the windshield, and a conductive material is cast in the hole to form a contact. The hole is a variable diameter hole, with a large diameter section facing the windward side and a small diameter section facing the leeward side. One end of the contact facing the windward side is on the same plane as the windshield, and the other end protrudes from the leeward side to form a large-sized plug, and the plug forms a wiring pin. Therefore, the contact is an I-shape as a whole, and has a good anti-slip effect. Contact A7, contact B8, contact C7', and contact D8' are all made of copper or aluminum and cast in the hole. In this embodiment, a hole is made on the windshield and a conductive material is cast into it, which does not affect the strength of the windshield.

[0036] The controller in this embodiment uses the vehicle's own controller, and no additional controller is required. The vehicle's own controller can realize the operation of the vehicle's window lifting, door locks, wipers, etc. In this embodiment, a judgment program is added to the original controller. This program is a prior art and can judge the number of times a certain contact is connected and the duration of the connection after it is connected. The corresponding installation position judgment logic diagram of this embodiment is as follows Figure 8 As shown, it is necessary to specially explain that in order to prevent the two reference installation points from being physically connected during normal use of the wiper or when there is water or other conductive materials on the glass surface, thereby generating a sound or light prompt from the installation prompt unit 11, which affects the driving of the passengers. The body controller 10 in this embodiment only judges the first connection signal and the effective time of the signal exceeds 5s. Only when the above conditions are met can the installation prompt unit 11 be driven to issue an installation prompt. The prompt signal is a sound signal or a light signal.

[0037] The wiper rubber strip 6 as a sub-component of the wiper blade 3 is mainly made of conductive rubber, which has a certain circuit conduction function on the basis of ensuring the performance of the wiper blade.

[0038] The following is a detailed description of the actual installation situation:

[0039] Before the wiper arm 2 and the wiper blade 3 are installed on the vehicle, they need to be pre-assembled offline. This operation is mainly achieved by the wiper blade clamping structure 4 on the wiper blade 3 and the wiper arm. In this matching structure, there is a square hole on the wiper arm 2, and the wiper blade clamping structure 4 can be installed in the square hole. The relevant matching structure is as follows: Figure 1 After the pre-assembly is completed, the wiper arm 2 and the wiper blade 3 can be regarded as one component, and the assembly effect is as follows. Figure 2 As shown, there is no relative movement between the two, so the position of the wiper blade 3 on the glass 9 can be used to confirm whether the wiper arm 2 is installed in place;

[0040] like Figure 3As shown, when installing in the complete vehicle state, first install the wiper motor and connecting rod mechanism 1 on the vehicle body, and then install the wiper arm 2 on the output shaft 5, which is a subcomponent of the wiper motor and connecting rod mechanism 1. By rotating the wiper arm 2, the wiper blade 2 is aligned with the reference installation point. The installation effect is as shown in FIG. Figure 5 As shown, the wiper arm 2 and the output shaft 5 are then fixed by installing the nut. Figure 4 As shown, point A in the figure is the position of the installation operator. Since the wiper installation reference point is far away from the operator and the reference point is small, it is not conducive for the operator to intuitively and quickly find the reference point. In this embodiment, contacts A and B correspond to one wiper, and contacts C and D correspond to another wiper. Of course, the installation of the wiper on the rear windshield of the car is also applicable to this method.

[0041] In addition, in this embodiment, when the wiper arm 2 is rotated, the wiper rubber strip 6 will also rotate coaxially. When the wiper rubber strip contacts the contact point A7 and the contact point B8 at the same time, the two contacts are connected.

[0042] Further, if Figure 6 As shown, contact A7 is connected to the vehicle ground in electrical principle, and contact B8 is connected to a data acquisition port of the body controller 10 (the electrical principle of contact C7' and contact D8' is the same as that of contact A7 and contact B8). When the conductive wiper rubber strip 6 contacts contact A7 and contact B8 at the same time, the two are connected. After the body controller 10 receives the grounding of contact B8, it determines through logic that the wiper arm 2 and wiper brush 3 have reached the initial position of the design state. At this time, the drive installation prompt unit 11 emits a sound or light prompt, indicating that the operator can fix the wiper arm 2 with a nut. Figure 7 As shown, the body controller 10 is installed in the cockpit, which is connected to the contact A7, the contact B8 and the installation prompt unit 11 through the wiring harness. In order to facilitate the observation and confirmation of the installation operator, the installation prompt unit 11 is arranged at the lower edge of the glass 9 and close to the installer's side.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vehicle wiper arm installation and calibration device, characterized in that: It includes contact A, contact B, contact C, and contact D arranged on the windshield; the connection line between contact A and contact B, and the connection line between contact C and contact D are the initial installation positions of two wipers respectively; contact B and contact D are both connected to the vehicle ground, and contact A and contact C are both electrically connected to the controller; the controller is communicatively connected to the prompt unit; the wiper is made of conductive rubber material; when one of the wiper is in contact with contact A and contact B at the same time, contact A and contact B are turned on, and after the controller detects that contact B is grounded, the control prompt unit sends a prompt signal; when the other wiper is in contact with contact C and contact D at the same time, contact C and contact D are turned on, and after the controller detects that contact D is grounded, the control prompt unit sends a prompt signal; a hole is opened on the windshield, and a conductive material is cast in the hole to form a contact; the hole is a variable diameter hole, the large diameter section is facing the windward side, and the small diameter section is facing the leeward side.

2. The vehicle wiper arm installation calibration device according to claim 1, characterized in that: One end of the contact facing the windward side is flush with the windshield, and the other end protrudes from the leeward side to form a large-sized plug, which forms a wiring pin.

3. A vehicle wiper arm installation calibration device according to claim 1 or 2, characterized in that: The lower edge of the windshield has a black border, and a first sound insulation foam is sandwiched between the lower edge of the black border and the warm air pressure trim assembly, and a second sound insulation foam is sandwiched between the upper edge of the black border and the instrument panel. The area formed by the black border, the first sound insulation foam, and the second sound insulation foam is not visible inside or outside the vehicle; contacts are arranged on the black edge, and the inner side of the contacts is electrically connected to the warm air pressure trim assembly through a power cord; the warm air pressure trim assembly is short-circuited to the battery of the entire vehicle.

4. A vehicle wiper arm installation calibration device according to claim 1 or 2, characterized in that: The contact A, contact B, contact C and contact D are all made of copper or aluminum.

5. A vehicle wiper arm installation calibration device according to claim 1 or 2, characterized in that: The controller is a controller carried by the vehicle itself.

6. A vehicle wiper arm installation calibration device according to claim 1 or 2, characterized in that: The controller will control the prompt unit to send out a prompt signal only after the first time the controller receives that the contact B or the contact D is grounded and the time exceeds the set time.

7. A vehicle wiper arm installation calibration device according to claim 1 or 2, characterized in that: The prompt signal is a sound signal or a light signal.

8. A method for verifying the installation of a car wiper arm, characterized in that: Applicable to the device described in any one of claims 1 to 7; first fix the wiper wiper and the wiper arm, then preliminarily fix the rotating end of the wiper arm to the corresponding position of the vehicle body, and then rotate the wiper arm to drive the wiper wiper to move until the wiper wiper contacts with contact A and contact B at the same time, or contacts with contact C and contact D at the same time, so that contact A is conductive with contact B, or contact C is conductive with contact D; after the controller obtains the contact conduction signal, it controls the prompt unit to send a prompt signal.

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