Rearview mirror and vehicle
By introducing conductive mechanisms into the rearview mirrors, static electricity is introduced into the heating layer, which solves the ablation of the reflective coating and dust and dirt attraction caused by static electricity, improves the cleanliness of mirrors and drive safety, and reduces costs and degumming risks.
Patent Information
- Application Number
- CN202420882929.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-04-25
AI Technical Summary
Static electricity on the rearview mirror can attract dust and dirt, causing the reflective coating to be ablated and affect the driver's sight. Existing methods such as increasing the thickness of double-sided adhesive can increase costs and increase the risk of degumming.
The conductive mechanism is introduced into the rearview mirror to connect the mirror surface and the heating layer. The conductive mechanism guides the static electricity on the mirror surface into the heating layer to avoid the accumulation of static charge on the mirror surface, reduce the risk of ablation of the reflective coating, and reduce the attraction of dust and dirt.
It effectively reduces the electrostatic charge on the mirror surface, avoids ablation of the reflective coating, maintains the cleanliness and field of view of the mirror surface, reduces material costs and avoids the risk of degumming.
Smart Images

Figure CN222224086U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of vehicle technology, and in particular to a rearview mirror and a vehicle. Background Art
[0002] The main function of the vehicle's rearview mirror is to reflect the situation behind, to the side, and below the vehicle, which can expand the driver's field of vision and improve driving safety. Static electricity on the rearview mirror will attract dust and dirt, and even cause the reflective coating on the rearview mirror to be burned, forming spots on the rearview mirror, affecting the driver's vision. Utility Model Content
[0003] In order to overcome the problems existing in the related art, the present disclosure provides a rearview mirror and a vehicle.
[0004] According to a first aspect of an embodiment of the present disclosure, there is provided a rearview mirror, comprising: a mirror surface coated with a reflective coating, a conductive mechanism, a heating layer and a supporting platform; one side of the heating layer is arranged on the supporting platform, and the other side of the heating layer is connected to the mirror surface via the conductive mechanism; the conductive mechanism is used to conduct static electricity on the mirror surface into the heating layer.
[0005] Optionally, the heating layer includes: a heating device and a heating surface; one side of the heating device is arranged on the supporting platform, and the other side of the heating device is connected to the heating surface; the heating device, the heating surface and the mirror surface are layered structures stacked in sequence, the conductive mechanism passes through the heating surface, and the two ends of the conductive mechanism are respectively connected to the mirror surface and the heating device.
[0006] Optionally, the heating device includes a heating wire and a power supply; one end of the heating wire is connected to the positive terminal of the power supply, and the other end of the heating wire is connected to the negative terminal of the power supply.
[0007] Optionally, the heating wire is a silver paste heating wire.
[0008] Optionally, the heating wire is a non-linear heating wire.
[0009] Optionally, two ends of the conductive mechanism are respectively connected to the mirror and the negative terminal of the power supply.
[0010] Optionally, the rearview mirror further includes: a first adhesive member; the heating surface is adhered to the mirror surface via the first adhesive member.
[0011] Optionally, the rearview mirror further includes: a second adhesive member; the support platform is adhered to the heating device via the second adhesive member.
[0012] Optionally, the conductive mechanism includes at least one of the following: an electric spring sheet, a conductive foam or a spring needle.
[0013] According to a second aspect of an embodiment of the present disclosure, a vehicle is provided, comprising the rearview mirror according to the first aspect.
[0014] The present disclosure provides a rearview mirror and a vehicle, comprising a mirror surface coated with a reflective coating, a conductive mechanism, a heating layer and a supporting platform, wherein one side of the heating layer is arranged on the supporting platform, and the other side of the heating layer is connected to the mirror surface through the conductive mechanism. Since the conductive mechanism connects the mirror surface and the heating layer, when static electricity accumulates on the mirror surface, the conductive mechanism can introduce the static electricity on the mirror surface into the heating layer, thereby discharging the static electricity charge to the heating layer, and the charge will not accumulate too much on the mirror surface, thereby reducing the risk of the reflective coating on the mirror surface being ablated, and maintaining the clarity of the rearview mirror surface. In addition, when the charge on the mirror surface is reduced, the dust and dirt attracted by static electricity are reduced, which can ensure the cleanliness of the mirror surface, further maintain the clarity of the rearview mirror surface, and thus improve driving safety.
[0015] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.
[0017] Figure 1 It is a schematic diagram of a rearview mirror.
[0018] Figure 2 A schematic diagram of a rearview mirror provided in an embodiment of the present disclosure.
[0019] Figure 3 It is a schematic diagram of a vehicle provided in an embodiment of the present disclosure.
[0020] Reference numerals
[0021] 20 - rearview mirror; 21 - mirror surface; 22 - conductive mechanism; 231 - heating device; 232 - heating surface; 24 - support platform; 25 - second adhesive member. DETAILED DESCRIPTION
[0022] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.
[0023] The main function of the vehicle's rearview mirror is to reflect the situation behind, to the side, and below the vehicle, which can expand the driver's field of vision and improve driving safety. Static electricity on the rearview mirror will attract dust and dirt, and even cause the reflective coating on the rearview mirror to be burned, forming spots on the rearview mirror, affecting the driver's vision.
[0024] See also Figure 1 The rearview mirror 10 includes a glass layer 11, a reflective coating 12, a top double-sided adhesive tape 13, a heating surface 14, a silver paste heating wire 15, a bottom double-sided adhesive tape 16, and a supporting platform 17. The reflective coating 12 is coated on the glass layer 11 to form a mirror surface, and the top double-sided adhesive tape 13 adheres the reflective coating 12 to the heating surface 14. The bottom double-sided adhesive tape 16 adheres the silver paste heating wire 15 to the supporting platform 17, and the bottom double-sided adhesive tape 16 can adhere the heating surface 14 at the part that is not in contact with the silver paste heating wire 15. Thus, a mirror structure is formed. Figure 1 The stacking structure shown.
[0025] When the vehicle's rearview mirror is subjected to a discharge test, static electricity is injected into the mirror surface of the rearview mirror. Since the mirror surface is thin, the static electricity charge will accumulate on the reflective coating 12 through the mirror surface. According to the theory of static electricity breaking through air, as shown in the following formula (1):
[0026] E = U / d (1)
[0027] In formula (1), E is the electric field intensity, U is the voltage, and d is the discharge distance.
[0028] The equivalent capacitance is shown in the following formula (2):
[0029] C = Q / U (2)
[0030] In formula (2), C is the equivalent capacitance, Q is the electrostatic charge, and U is the voltage.
[0031] Then, by combining formula (1) and formula (2), formula (3) can be derived as follows:
[0032] E=U / Cd(3)
[0033] It can be seen from formula (3) that when the rearview mirror is formed, its equivalent capacitance C and discharge distance d are both fixed values, so the electric field strength E is proportional to the electrostatic charge Q.
[0034] The breakdown electric field E0 of air is usually 3*10^6V / m. When the electric field strength E of the static electricity accumulated on the mirror surface is greater than the breakdown electric field E0, the rearview mirror will discharge. As the static charge continues to accumulate, when the electric field strength E is greater than the breakdown electric field E0, discharge occurs between the reflective coating and the silver paste heating wire, which may cause the reflective coating to be ablated. The glass corresponding to the ablated reflective coating cannot reflect light or display the field of view.
[0035] To avoid ablation of the reflective coating on the rearview mirror, the Figure 1 The thickness of the double-sided tape, for example, increasing the thickness of the bottom double-sided tape 16 and / or the top double-sided tape 13, forms an insulating layer, which can shield static electricity outside the rearview mirror, thereby alleviating static electricity from ablating the reflective coating.
[0036] However, the inventors have found that increasing the thickness of the double-sided adhesive tape in the rearview mirror will increase the material cost, thereby increasing the cost of the rearview mirror accordingly. In addition, as the thickness of the double-sided adhesive tape increases, the risk of debonding of each layer in the rearview mirror increases. For example, if the thickness of the top double-sided adhesive tape 13 is increased, the risk of debonding of the reflective coating 12 and the heating surface 14 bonded by the top double-sided adhesive tape 13 increases, and the risk of the mirror surface falling off the rearview mirror also increases.
[0037] To solve the above problems, the inventors have conducted long-term research and proposed a rearview mirror and a vehicle. A conductive mechanism is added to the rearview mirror, and the conductive mechanism connects the mirror surface and the heating layer. When static electricity charges accumulate on the mirror surface, the static electricity charges on the mirror surface are discharged to the heating layer through the conductive mechanism, so that the electric field strength E of the static electricity accumulated on the mirror surface is less than the breakdown electric field E0. Then, the phenomenon of charge breakdown in the air will not occur, and the reflective coating on the mirror surface will not be broken down or burned. In addition, since the static electricity charges on the mirror surface are discharged to the heating layer, the charges accumulated on the mirror surface are reduced, and the dust and dirt attracted by the charges are naturally reduced, thereby ensuring the cleanliness of the mirror surface.
[0038] Optionally, the embodiment of the present disclosure provides a rearview mirror, wherein the rearview mirror may be a rearview mirror outside the vehicle, such as a rearview mirror on the left side of the front of the vehicle or a rearview mirror on the right side of the vehicle. The rearview mirror may also be a rearview mirror inside the vehicle. Figure 2 As shown, the rearview mirror 20 includes: a mirror surface 21 coated with a reflective coating, a conductive mechanism 22, a heating layer and a supporting platform 24.
[0039] One side of the heating layer is disposed on the supporting platform 24 , and the other side of the heating layer is connected to the mirror surface 21 via the conductive mechanism 22 .
[0040] The reflective coating is evenly coated on the glass to form a mirror surface 21, through which the driver can indirectly observe the situation behind, to the side, below, etc. of the vehicle, thereby expanding the driver's field of vision and improving driving safety.
[0041] The heating layer is used to heat the mirror surface 21. For example, when the vehicle is in a cold environment or in a humid environment, the mirror surface 21 may be stained with water vapor or water droplets. The vehicle automatically heats the heating layer to remove the water vapor or water droplets on the mirror surface. Alternatively, the driver manually controls the heating layer to heat to remove the water vapor or water droplets on the mirror surface. The heating of the heating layer prevents water vapor or water droplets from being stained on the mirror surface and interfering with the driver's field of vision, thereby improving driving safety.
[0042] The conductive mechanism 22 is used to conduct static electricity on the mirror surface 21 into the heating layer.
[0043] Since the conductive mechanism 22 connects the mirror 21 and the heating layer, when static electricity accumulates on the mirror 21, the conductive mechanism 22 can conduct the static electricity on the mirror 21 into the heating layer, thereby discharging the static electricity charge to the heating layer. The static electricity charge will not accumulate on the mirror surface, and the static electricity field strength E can be made smaller than the breakdown field E0, avoiding air breakdown discharge, thereby reducing the risk of ablation of the reflective coating on the mirror surface and improving the anti-static capability of the rearview mirror.
[0044] It is easy to understand that the function of the conductive mechanism 22 is to conduct static electricity on the mirror surface, so the conductive mechanism can be made of conductive materials. Exemplarily, the conductive mechanism 22 includes at least one of the following: an electric spring sheet, conductive foam or a spring needle.
[0045] It is not difficult to understand that in this embodiment, the type of the conductive mechanism is not limited, and the type of the conductive mechanism can be one, for example, the conductive mechanism can be an electric spring sheet, a conductive foam, or a spring needle. The type of the conductive mechanism can also be any combination of the above three, for example, the conductive mechanism can be an electric spring sheet, a conductive foam, and a spring needle. In addition, the number of conductive mechanisms is not limited, that is, the number of conductive mechanisms can be one, for example, it can be 1 electric spring sheet. The number of conductive mechanisms can be multiple, for example, the conductive mechanism can be an electric spring sheet and a conductive foam, and for another example, the conductive mechanism can be 2 electric spring sheets and 1 conductive foam.
[0046] The rearview mirror provided in this embodiment includes a mirror surface coated with a reflective coating, a conductive mechanism, a heating layer and a supporting platform, one side of the heating layer is arranged on the supporting platform, and the other side of the heating layer is connected to the mirror surface through the conductive mechanism. Since the conductive mechanism connects the mirror surface and the heating layer, in the case of static electricity test or accumulation of static electricity on the mirror surface, the conductive mechanism can introduce the static electricity on the mirror surface into the heating layer, thereby discharging the static electricity charge to the heating layer, and the charge will not accumulate too much on the mirror surface, thereby reducing the risk of the reflective coating on the mirror surface being ablated, and maintaining the clarity of the rearview mirror surface. In addition, when the charge on the mirror surface is reduced, the dust and dirt attracted by static electricity will be reduced accordingly, which can ensure the cleanliness of the mirror surface, further maintain the clarity of the rearview mirror surface, and thus improve driving safety.
[0047] Optionally, see Figure 2 The heating layer includes: a heating device 231 and a heating surface 232.
[0048] One side of the heating device 231 is arranged on the supporting platform 24, and the other side of the heating device 231 is connected to the heating surface 232; the heating device 231, the heating surface 232 and the mirror 21 are layered structures stacked in sequence, the conductive mechanism 22 passes through the heating surface 232, and the two ends of the conductive mechanism 22 are respectively connected to the mirror 21 and the heating device 231.
[0049] The function of the heating device 231 is to generate heat to heat the mirror surface. The function of the heating surface is to evenly heat the mirror surface with the heat generated by the heating device.
[0050] In one embodiment, please refer to Figure 2 The heating device 231 includes a heating wire and a power source.
[0051] One end of the heating wire is connected to the positive terminal of the power supply, and the other end of the heating wire is connected to the negative terminal of the power supply.
[0052] The current flows out from the positive terminal of the power supply, passes through the heating wire and returns to the negative terminal of the power supply. In this process, the heating wire converts electrical energy into thermal energy to achieve the heating effect.
[0053] Optionally, the power source may be a battery configured separately for the rearview mirror, or may be a battery on the vehicle.
[0054] In one embodiment, one end of the conductive mechanism is connected to the mirror surface, and the other end is connected to any structure on the heating device, both of which can achieve the effect of discharging static electricity.
[0055] In another embodiment, see Figure 2The two ends of the conductive mechanism 22 are connected to the mirror 21 and the negative terminal of the power supply respectively. Since the negative terminal of the power supply has a low potential, writing the electrostatic charge to the negative terminal of the power supply can achieve a better discharge effect.
[0056] The heating wire is a silver paste heating wire.
[0057] The heating wire is a non-linear heating wire. The non-linear heating wire is arranged in a longer size in the rearview mirror, and the heating area in the rearview mirror is correspondingly increased, thereby improving the heating effect and heating efficiency of the heating wire.
[0058] The rearview mirror further comprises: a first adhesive member ( Figure 2 not shown).
[0059] The heating surface is adhered to the mirror surface through the first adhesive member.
[0060] The first adhesive member can be double-sided tape, automotive glue, etc.
[0061] Please continue reading Figure 2 The rearview mirror 20 also includes: a second adhesive component 25.
[0062] The supporting platform is adhered to the heating device through the second adhesive member.
[0063] The second adhesive member may also be double-sided tape, automotive glue, etc.
[0064] In this embodiment, adhesives such as glue or double-sided tape do not need to open or make holes in each layer structure in the rearview mirror, thereby protecting each layer structure.
[0065] Based on the above embodiments, the present disclosure also provides a vehicle, such as Figure 3 As shown, the vehicle includes a rearview mirror 20 .
[0066] Optionally, the rearview mirror can be fixed to the vehicle body by a mounting handle on the support platform of the rearview mirror 20. The driver can adjust the angle of the rearview mirror by adjusting the mounting handle according to driving needs to obtain a rich field of view and improve driving safety.
[0067] It should be noted that rearview mirrors are not limited to Figure 3 The rearview mirror on the left side of the vehicle can also be the rearview mirror on the right side or the rearview mirror inside the vehicle.
[0068] In summary, the rearview mirror and vehicle provided by the present disclosure include a mirror surface coated with a reflective coating, a conductive mechanism, a heating layer and a supporting platform, one side of the heating layer is arranged on the supporting platform, and the other side of the heating layer is connected to the mirror surface through the conductive mechanism. Since the conductive mechanism connects the mirror surface and the heating layer, when static electricity accumulates on the mirror surface, the conductive mechanism can introduce the static electricity on the mirror surface into the heating layer, thereby discharging the static electricity charge to the heating layer, and the charge will not accumulate too much on the mirror surface, thereby reducing the risk of the reflective coating on the mirror surface being ablated, and maintaining the clarity of the rearview mirror surface. In addition, when the charge on the mirror surface is reduced, the dust and dirt attracted by static electricity will be reduced accordingly, which can ensure the cleanliness of the mirror surface, further maintain the clarity of the rearview mirror surface, and thus improve driving safety.
[0069] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the present disclosure. This application is intended to cover any variations, uses or adaptations of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and examples are to be considered as exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.
[0070] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims
1. A rearview mirror, characterized in that: The rearview mirror comprises: a mirror surface coated with a reflective coating, a conductive mechanism, a heating layer and a supporting platform; One side of the heating layer is arranged on the supporting platform, and the other side of the heating layer is connected to the mirror surface through the conductive mechanism; The conductive mechanism is used to introduce static electricity on the mirror surface into the heating layer.
2. The rearview mirror according to claim 1, characterized in that: The heating layer comprises: a heating device and a heating surface; One side of the heating device is arranged on the supporting platform, and the other side of the heating device is connected to the heating surface; the heating device, the heating surface and the mirror surface are layered structures stacked in sequence, the conductive mechanism passes through the heating surface, and the two ends of the conductive mechanism are respectively connected to the mirror surface and the heating device.
3. The rearview mirror according to claim 2, characterized in that: The heating device comprises a heating wire and a power source; One end of the heating wire is connected to the positive terminal of the power supply, and the other end of the heating wire is connected to the negative terminal of the power supply.
4. The rearview mirror according to claim 3, characterized in that: The heating wire is a silver paste heating wire.
5. The rearview mirror according to claim 3, characterized in that: The heating wire is a non-linear heating wire.
6. The rearview mirror according to claim 3, characterized in that: Two ends of the conductive mechanism are respectively connected to the mirror and the negative terminal of the power supply.
7. The rearview mirror according to any one of claims 2 to 6, characterized in that: The rearview mirror further comprises: a first adhesive member; The heating surface is adhered to the mirror surface through the first adhesive member.
8. The rearview mirror according to any one of claims 2 to 6, characterized in that: The rearview mirror further comprises: a second adhesive member; The supporting platform is adhered to the heating device through the second adhesive member.
9. The rearview mirror according to any one of claims 1 to 6, characterized in that: The conductive mechanism includes at least one of the following: an electric spring sheet, conductive foam or a spring needle.
10. A vehicle, characterized in that: The vehicle comprises a rearview mirror as described in any one of claims 1 to 9.
