High-temperature-resistant non-magnetic electric automobile rearview mirror heating sheet

The design of the outer frame plate and the locking mechanism facilitates the disassembly and installation of the heating substrate, solving the problem of difficult disassembly of traditional heating elements. Furthermore, the use of conductive silver paste and carbon paste layers improves heating efficiency and durability.

CN223843915UActive Publication Date: 2026-01-27BAOMAN ELECTRONICS (JIANGSU) CO LTD
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Patent Information

Application Number
CN202520133944.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2026-01-27
Estimated Expiration
2035-01-21

AI Technical Summary

Technical Problem

Traditional car rearview mirror heating elements are glued between the rearview mirror and the mirror holder using double-sided tape. This makes maintenance or replacement cumbersome, and the residual tape after disassembly affects the use of the mirror.

Method used

The design incorporates an outer frame plate and mounting components. The heating substrate is fixed to the outer frame plate via the mounting components, while the inner frame plate is equipped with a locking mechanism for easy disassembly and installation. The outer periphery of the heating substrate is coated with conductive silver paste and carbon paste to improve heating efficiency and durability.

Benefits of technology

The heating substrate is easy to disassemble and install, which improves the practicality of the device. The coating of conductive silver paste and carbon paste layer improves heating uniformity and durability, and extends service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of heating assemblies, in particular to a high-temperature-resistant non-magnetic electric automobile rearview mirror heating piece which comprises a heating substrate body, an installation assembly is arranged on the periphery of the heating substrate body, and an outer frame plate is arranged on the periphery of the installation assembly. Four sets of empty grooves are formed in the inner wall side of the outer frame plate. The mounting assembly comprises an inner frame plate fixedly mounted on the periphery of the heating substrate body, and clamping mechanisms are arranged on the periphery of the inner frame plate; the clamping mechanism comprises a limiting cavity formed in one side of the inner frame plate, an inner cavity of the limiting cavity is slidably connected with a push plate, one side of the inner frame plate is further slidably connected with a moving block, the bottom of the moving block is fixedly connected with a limiting plate, and the limiting plate is slidably connected to the interior of the inner frame plate. An operator can conveniently disassemble and maintain the heating substrate body, and the practicability of the device is improved.
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Description

Technical Field

[0001] This utility model relates to the field of heating component technology, specifically a high-temperature resistant, non-magnetic electric automotive rearview mirror heating element. Background Technology

[0002] As a crucial component for drivers to monitor their surroundings, the importance of maintaining the clarity of car rearview mirrors cannot be overstated. Traditional rearview mirrors typically consist of a bowl-shaped outer shell and a lens. This simple structure allows condensation or frost to form on the mirror during rain, snow, or fog, obscuring vision and affecting the driver's work. Rearview mirrors can be remedied by heating an electrothermal film embedded behind the lens to remove condensation, keeping the lens surface clear and ensuring driving safety.

[0003] Based on this, after searching the patent website, the announcement number CN204669633U discloses a car rearview mirror heating element. The car rearview mirror heating element is installed between the reflector lens and the reflector support of the car rearview mirror. The back of the heating element is bonded to the reflector support by a layer of double-sided adhesive, and the thermally conductive adhesive film is bonded to the reflector lens.

[0004] It is known that the above application has the following shortcomings: When in use, the traditional rearview mirror heating element is glued between the rearview mirror and the mirror holder with double-sided tape. When the heating element needs to be maintained or replaced later, it is inconvenient for the operator to remove the heating element. The disassembly operation is troublesome, and adhesive tape will remain on both sides of the removed heating element, which will affect the use of the heating element and reduce the practicality of the device.

[0005] To address the aforementioned issues, a high-temperature resistant, non-magnetic electric heating element for automotive rearview mirrors is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a high-temperature resistant, non-magnetic electric rearview mirror heating element. Using this device solves the problems of traditional rearview mirror heating elements that are glued between the rearview mirror and the mirror holder with double-sided adhesive. In the future, when the heating element needs to be maintained or replaced, it is inconvenient for the operator to remove it. The disassembly operation is troublesome, and adhesive tape will remain on both sides of the removed heating element, which will affect the use of the heating element and reduce the practicality of the device.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature resistant, non-magnetic automotive rearview mirror heating element, comprising a heating substrate body, an installation assembly disposed on the outer periphery of the heating substrate body, and an outer frame plate disposed on the outer periphery of the installation assembly; four sets of slots are provided on the inner wall side of the outer frame plate; the installation assembly includes an inner frame plate fixedly installed on the outer periphery of the heating substrate body, and a locking mechanism is provided around the inner frame plate; the locking mechanism includes a limiting cavity disposed on one side of the inner frame plate, a push plate slidably connected to the inner cavity, and a moving block slidably connected to one side of the inner frame plate, the bottom of the moving block being fixedly connected to a limiting plate, and the limiting plate being slidably connected inside the inner frame plate.

[0008] Preferably, a locking block is fixedly connected to the bottom of the push plate, and the locking block is slidably connected inside the inner frame plate.

[0009] Preferably, the side of the card block away from the push plate can pass through the inner frame plate and extend to the outside of the inner frame plate.

[0010] Preferably, the four sets of locking blocks are respectively matched with the four sets of empty slots at corresponding positions, and the locking blocks are engaged with the empty slots.

[0011] Preferably, the top surface of the card block is provided with a plug-in groove, the bottom of the limiting plate is fixedly connected with a plug-in block, the plug-in block is slidably connected inside the inner frame plate, and the plug-in block is engaged with the plug-in groove.

[0012] Preferably, a conductive silver paste layer is disposed on the outer periphery of the heating substrate, and a conductive carbon paste layer is disposed on one side of the conductive silver paste layer.

[0013] Preferably, the conductive carbon paste layer is wrapped around the outer periphery of the heating substrate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model discloses a high-temperature resistant, non-magnetic automotive rearview mirror heating element. This utility model adds an outer frame plate and mounting components to the outer periphery of the heating base, forming a heating assembly for automotive use. The heating base is fixedly installed to the outer frame plate via the mounting components. When installing the heating base, the operator can directly install the outer frame plate between the mirror lens and the mirror holder using adhesive or bolts. The inner frame plate is equipped with four sets of locking mechanisms to facilitate maintenance of the heating base in later stages. When replacing, pull the moving block upwards, which will cause the limiting plate and the plug-in block to move away from the locking block until the plug-in block is completely separated from the plug-in slot. At this time, the locking block is no longer fixed. Push the push plate along the limiting cavity away from the outer frame plate until the push plate causes the locking block to fully retract into the inner frame plate. The locking block and the empty slot are then separated. All four locking mechanisms need to complete the above operations. After that, the user can remove the inner frame plate from one side of the outer frame plate, and then remove the heating substrate body for easy maintenance.

[0016] 2. When it is necessary to reinstall the maintained heating substrate, the inner frame plate is re-clamped into the middle of the outer frame plate, with the clamping block corresponding to the empty slot. The push plate is pushed towards the outer frame plate, and the push plate moves the clamping block towards the empty slot until the clamping block is engaged and installed inside the empty slot. At this time, the insertion slot is below the insertion block. In order to stabilize the clamping block, the operator presses the moving block down. The moving block moves the insertion block to fully engage and fix it inside the insertion slot, thus stabilizing the clamping block. All four clamping mechanisms perform the above operation, so that the heating substrate can be fixedly installed in the middle of the outer frame plate. This setting, through the joint use of the outer frame plate, the mounting components, and the heating substrate, makes it convenient for the operator to disassemble and maintain the heating substrate, improving the practicality of the device.

[0017] 3. The heating substrate body is provided with an inner frame plate and an outer frame plate on its outer periphery. The design of the outer frame helps to protect the outer periphery edge of the heating substrate body and prevent damage to the edge of the heating substrate body. A conductive silver paste layer is coated on the outer surface of the heating substrate body, and a conductive carbon paste layer is coated on the conductive silver paste layer. In this way, the outer periphery of the heating substrate body is wrapped by the conductive silver paste layer and the conductive carbon paste layer. This composite heating substrate body formed by adding conductive silver paste layer and conductive carbon paste layer will make the heating substrate body heat up faster and more uniformly, with good defogging effect. The protective layer will improve the durability of the heating substrate body, making the performance of the heating substrate body more stable and extending the service life of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2This is a structural diagram of the outer frame plate, mounting components, and heating substrate body of this utility model;

[0020] Figure 3 This is a structural diagram of the mounting components and the heating substrate body of this utility model;

[0021] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0022] Figure 5 This is a structural diagram of the disassembled components of the engagement mechanism of this utility model;

[0023] Figure 6 This is a cross-sectional view of the heating element assembly of this utility model.

[0024] In the diagram: 1. Outer frame plate; 11. Empty slot; 2. Mounting component; 21. Inner frame plate; 22. Engaging mechanism; 221. Limiting cavity; 222. Push plate; 223. Locking block; 224. Moving block; 225. Limiting plate; 226. Insertion block; 2261. Insertion slot; 3. Heating substrate body; 31. Conductive silver paste layer; 32. Conductive carbon paste layer. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0027] Combination Figures 1-6 A high-temperature resistant, non-magnetic automotive rearview mirror heating element includes a heating substrate body 3, an installation assembly 2 on the outer periphery of the heating substrate body 3, and an outer frame plate 1 on the outer periphery of the installation assembly 2. The inner wall of the outer frame plate 1 has four sets of slots 11. The installation assembly 2 includes an inner frame plate 21 fixedly installed on the outer periphery of the heating substrate body 3. Each of the four sides of the inner frame plate 21 has a locking mechanism 22. The locking mechanism 22 includes a limiting cavity 221 on one side of the inner frame plate 21. A push plate 222 is slidably connected to the inner cavity 221. A moving block 224 is also slidably connected to one side of the inner frame plate 21. A limiting plate 225 is fixedly connected to the bottom of the moving block 224 and slidably connected to the inside of the inner frame plate 21.

[0028] The present invention will be further described below with reference to the embodiments.

[0029] Example 1:

[0030] Please see Figures 1-5 A locking block 223 is fixedly connected to the bottom of the push plate 222. The locking block 223 is slidably connected to the inside of the inner frame plate 21. The side of the locking block 223 away from the push plate 222 can pass through the inner frame plate 21 and extend to the outside of the inner frame plate 21. The four sets of locking blocks 223 are respectively matched with the four sets of empty slots 11 at the corresponding positions. The locking block 223 is engaged with the empty slot 11. The top surface of the locking block 223 is provided with a plug-in slot 2261. The bottom of the limiting plate 225 is fixedly connected to a plug-in block 226. The plug-in block 226 is slidably connected to the inside of the inner frame plate 21, and the plug-in block 226 is engaged with the plug-in slot 2261.

[0031] This utility model discloses a high-temperature resistant, non-magnetic electric heating element for automotive rearview mirrors. Traditional automotive rearview mirror heating elements are installed between the reflector lens and the mirror holder, and both the front and back of the heating element are glued together with double-sided adhesive, which can damage the heating element when the operator removes it. This utility model adds an outer frame plate 1 and a mounting component 2 to the outer periphery of the heating base body 3, forming a heating component for automotive use. The heating base body 3 is fixedly installed to the outer frame plate 1 via the mounting component 2. When installing the heating base body 3, the operator can directly attach the outer frame plate 1 using either adhesive or... The mirror is bolted and fixed between the lens and the mount of the car rearview mirror. The inner frame plate 21 has four sets of engaging mechanisms 22. When the heating substrate 3 needs maintenance or replacement, the moving block 224 is pulled upwards, causing the limiting plate 225 and the insertion block 226 to move away from the locking block 223 until the insertion block 226 is completely disengaged from the insertion slot 2261. At this point, the locking block 223 is no longer fixed. The push plate 222 is then pushed along the limiting cavity 221 away from the outer frame plate 1 until the push plate 222 moves the locking block 223 towards the inner frame plate 21. After the internal structure fully retracts, the locking block 223 engages and disengages with the empty slot 11. All four locking mechanisms 22 must complete the above operations. The user can then remove the inner frame plate 21 from one side of the outer frame plate 1, allowing the heating substrate body 3 to be removed for maintenance. When the maintained heating substrate body 3 needs to be reinstalled, the inner frame plate 21 is re-engaged and installed in the middle of the outer frame plate 1, with the locking block 223 corresponding to the empty slot 11. The push plate 222 is then pushed towards the outer frame plate 1, causing the locking block 223 to move closer to the empty slot 11 until the locking block 223 engages securely. The device is inserted into the empty slot 11. At this time, the insertion slot 2261 is below the insertion block 226. In order to stabilize the locking block 223, the operator presses the moving block 224 downward. The moving block 224 drives the insertion block 226 to fully engage and fix it into the insertion slot 2261, thereby stabilizing the locking block 223. All four sets of engaging mechanisms 22 perform the above operations, thereby fixing the heating substrate body 3 in the middle of the outer frame plate 1. This setting allows the operator to easily disassemble and maintain the heating substrate body 3 by using the outer frame plate 1, the mounting component 2, and the heating substrate body 3 together, thus improving the practicality of the device.

[0032] Example 2:

[0033] Please see Figure 1 and Figure 6 A conductive silver paste layer 31 is provided on the outer periphery of the heating substrate body 3, and a conductive carbon paste layer 32 is provided on one side of the conductive silver paste layer 31. The conductive carbon paste layer 32 is wrapped around the outer periphery of the heating substrate body 3.

[0034] The heating substrate body 3 is provided with an inner frame plate 21 and an outer frame plate 1 around its periphery. The design of the outer frame helps to protect the outer periphery of the heating substrate body 3 and prevent damage to the edge of the heating substrate body 3. A conductive silver paste layer 31 is coated on the outer surface of the heating substrate body 3, and a conductive carbon paste layer 32 is coated on the conductive silver paste layer 31. In this way, the outer periphery of the heating substrate body 3 is wrapped by the conductive silver paste layer 31 and the conductive carbon paste layer 32. The composite heating substrate body 3 formed by adding the conductive silver paste layer 31 and the conductive carbon paste layer 32 will make the heating substrate body 3 heat up quickly and evenly, have a good defogging effect, and the protective layer will improve the durability of the heating substrate body 3, making the performance of the heating substrate body 3 more stable and extending the service life of the device.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-temperature resistant, non-magnetic automotive rearview mirror heating element, comprising a heating substrate body (3), characterized in that: An installation assembly (2) is provided on the outer periphery of the heating substrate body (3), and an outer frame plate (1) is provided on the outer periphery of the installation assembly (2); a slot (11) is provided on the inner wall side of the outer frame plate (1), and four sets of slots (11) are provided; the installation assembly (2) includes an inner frame plate (21) fixedly installed on the outer periphery of the heating substrate body (3), and a locking mechanism (22) is provided on all four sides of the inner frame plate (21); the locking mechanism (22) includes a limiting cavity (221) provided on one side of the inner frame plate (21), a push plate (222) is slidably connected to the inner cavity (221), and a moving block (224) is slidably connected to one side of the inner frame plate (21), and a limiting plate (225) is fixedly connected to the bottom of the moving block (224), and the limiting plate (225) is slidably connected to the inside of the inner frame plate (21).

2. The high-temperature resistant, non-magnetic automotive rearview mirror heating element according to claim 1, characterized in that: The bottom of the push plate (222) is fixedly connected to a locking block (223), which is slidably connected to the inside of the inner frame plate (21).

3. The high-temperature resistant, non-magnetic automotive rearview mirror heating element according to claim 2, characterized in that: The side of the card block (223) away from the push plate (222) can pass through the inner frame plate (21) and can extend to the outside of the inner frame plate (21).

4. The high-temperature resistant, non-magnetic automotive rearview mirror heating element according to claim 3, characterized in that: The four sets of locking blocks (223) are respectively matched with the four sets of empty slots (11) at the corresponding positions, and the locking blocks (223) are engaged with the empty slots (11).

5. A high-temperature resistant, non-magnetic automotive rearview mirror heating element according to claim 4, characterized in that: The top surface of the card block (223) is provided with a plug groove (2261), and the bottom of the limiting plate (225) is fixedly connected with a plug block (226). The plug block (226) is slidably connected to the inside of the inner frame plate (21), and the plug block (226) is engaged with the plug groove (2261).

6. The high-temperature resistant, non-magnetic, electric rearview mirror heating element according to claim 5, characterized in that: A conductive silver paste layer (31) is provided on the outer periphery of the heating substrate body (3), and a conductive carbon paste layer (32) is provided on one side of the conductive silver paste layer (31).

7. A high-temperature resistant, non-magnetic automotive rearview mirror heating element according to claim 6, characterized in that: The conductive carbon paste layer (32) is wrapped around the outer periphery of the heating substrate body (3).

Citation Information

Patent Citations

  • Heating piece for automobile rearview mirror

    CN204669633U