Automobile outside rear-view mirror electric heating sheet with temperature controller

Abstract

The utility model provides an automobile outside rear-view mirror electric heating sheet with a temperature controller, which comprises a substrate, and a first electric heating wire, a second electric heating wire, two first conducting strips and two second conducting strips are fixed on the substrate; the two ends of the first electric heating wire are electrically connected with one first conducting strip and one second conducting strip respectively, and the two ends of the second electric heating wire are electrically connected with the other first conducting strip and the other second conducting strip respectively. The two first conductive sheets are electrically connected with conductive terminals. The electric heating piece for the automobile outside rear-view mirror glass further comprises a temperature controller, the temperature controller is fixed to the base plate, the temperature sensing end of the temperature controller abuts against one part of the first electric heating wire and / or one part of the second electric heating wire, and two conductive pins of the temperature controller are electrically connected with one second conductive piece respectively. The temperature controller is used for controlling the temperature interval when the first electric heating wire and the second electric heating wire heat the substrate; according to the utility model, the situation that the first heating wire and the second heating wire are overheated and fused can be avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of electric heating elements for automotive exterior rearview mirrors, and more specifically, to an electric heating element for automotive exterior rearview mirrors with a temperature controller. Background Technology

[0002] With the continuous development of the automotive industry, most car exterior rearview mirrors on the market now have electric heating functions. This means that an electric heating element is attached to the back of the mirror glass. When the heating element heats up, it heats the mirror glass, causing rainwater adhering to the front of the mirror glass to evaporate, ensuring the driver's visibility. In existing technology, the electric heating element for heating the mirror glass in car exterior rearview mirrors includes a substrate with a heating wire fixed on it. When the heating wire is energized, it heats the substrate, which in turn heats the mirror glass. However, in existing electric heating element structures, the heating wire is continuously energized, which can easily lead to overheating and melting, causing the heating element to fail and resulting in a short lifespan. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide an electric heating element for automotive exterior rearview mirrors with a temperature controller, which can prevent the first heating wire and the second heating wire from overheating and melting, thereby extending the service life of the electric heating element for automotive exterior rearview mirrors.

[0004] This utility model provides an electric heating element for a car exterior rearview mirror with a temperature controller, comprising a substrate, on which a first heating wire, a second heating wire, two first conductive plates, and two second conductive plates are fixed; the two ends of the first heating wire are electrically connected to one of the first conductive plates and one of the second conductive plates, respectively, and the two ends of the second heating wire are electrically connected to the other first conductive plate and the other second conductive plate, respectively; each of the two first conductive plates is electrically connected to a conductive terminal; the electric heating element for the car exterior rearview mirror also includes a temperature controller, which is fixed on the substrate, and the temperature sensing end of the temperature controller abuts against a portion of the first heating wire and / or a portion of the second heating wire, and the two conductive pins of the temperature controller are electrically connected to one of the second conductive plates, respectively; the temperature controller is used to control the temperature range during which the first heating wire and the second heating wire heat the substrate.

[0005] By adopting the above-described structure, this invention allows the temperature controller to detect the temperature of the first and second heating wires when heating the substrate. When the temperature is lower than the set value, the temperature controller is activated, connecting the first and second heating wires. At this time, the first and second heating wires begin to heat the substrate. When the temperature is higher than the set value, the internal contacts of the temperature controller are deactivated, disconnecting the first and second heating wires. This stops the heating of the substrate, maintaining the substrate temperature within a certain range and preventing overheating and melting of the first and second heating wires, thereby extending the service life of the automotive exterior rearview mirror heating element.

[0006] In one possible implementation, each conductive terminal is fixed to the substrate by two spaced-apart first rivets, and each conductive terminal is in contact with a corresponding first conductive sheet for conducting electricity. The two conductive terminals are used to connect the positive and negative wires, respectively. With this structure, each conductive terminal can be reliably fixed to the substrate by the first rivets, and since each conductive terminal is in contact with the corresponding first conductive sheet for conducting electricity, after each conductive terminal is fixed to the substrate by the first rivets, each conductive terminal can be reliably electrically connected to the first conductive sheet.

[0007] In one possible implementation, the two conductive pins of the thermostat are each fixed to the substrate by a second rivet, and the two conductive pins of the thermostat are in contact with one of the second conductive sheets to conduct electricity. The thermostat is fixed to the substrate by two second rivets, and the temperature sensing end of the thermostat abuts against a portion of the first heating wire and / or a portion of the second heating wire. With this structure, after the two conductive pins of the thermostat are fixed to the substrate by the second rivets on the corresponding sides, the thermostat as a whole can be reliably fixed to the substrate, and the temperature sensing end of the thermostat can reliably abut against a portion of the first heating wire and / or a portion of the second heating wire. In addition, after the two conductive pins of the thermostat are fixed to the substrate by the second rivets on the corresponding sides, both conductive pins of the thermostat can reliably contact the second conductive sheet at the corresponding position to conduct electricity.

[0008] In one possible implementation, a first adhesive film is bonded to the front side of the substrate. The first adhesive film is used to bond and fix to the back of the mirror glass in the automotive exterior rearview mirror. With this structure, the mirror glass in the automotive exterior rearview mirror can be reliably bonded and fixed to the front side of the substrate by the first adhesive film, thereby enabling the first heating wire, the second heating wire, and the substrate to reliably heat the mirror glass (the heat generated when the first heating wire and the second heating wire are heated can be diffused to the substrate so that the substrate can reliably heat the mirror glass, and the substrate is made of aluminum material).

[0009] In one possible implementation, a second film is bonded to the rear side of the substrate. The second film is used to bond and fix to the support plate inside the automotive exterior rearview mirror. The second film is provided with a first clearance opening for avoiding two conductive terminals, and a second clearance opening for avoiding a thermostat. With this structure, the substrate can be reliably bonded and fixed to the support plate inside the automotive exterior rearview mirror by means of the second film.

[0010] In one possible implementation, the thermostat controls the temperature range of the first and second heating wires heating the substrate to 50-70 degrees Celsius. With this structure, when the thermostat detects that the substrate temperature is below 50 degrees Celsius, the thermostat is activated, connecting the first and second heating wires. At this time, the first and second heating wires begin heating the substrate. When the thermostat detects that the substrate temperature is above 70 degrees Celsius, the internal contacts of the thermostat are deactivated, disconnecting the first and second heating wires. At this time, the first and second heating wires stop heating the substrate, thus maintaining the substrate temperature between 50-70 degrees Celsius. This prevents overheating of the substrate and avoids the first and second heating wires from overheating and melting. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0012] Figure 2 for Figure 1 A magnified structural diagram of point A in the middle;

[0013] Figure 3 for Figure 1 A magnified structural diagram of point B in the middle;

[0014] Figure 4 This is an exploded view of the present invention;

[0015] Figure 5 This is a schematic diagram of the structure after the temperature controller is fixed on the base plate. Detailed Implementation

[0016] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0017] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0018] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0019] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] See Figure 1-5 As shown in the figure, this application discloses an electric heating element for a car exterior rearview mirror with a temperature controller, including a substrate 1. A first heating wire 2, a second heating wire 3, two first conductive sheets 4, and two second conductive sheets 5 are fixed on the substrate 1. The two ends of the first heating wire 2 are electrically connected to one of the first conductive sheets 4 and one of the second conductive sheets 5, respectively. The two ends of the second heating wire 3 are electrically connected to the other first conductive sheet 4 and the other second conductive sheet 5, respectively. Each of the two first conductive sheets 4 is electrically connected to a conductive terminal 6. The electric heating element for the car exterior rearview mirror also includes a temperature controller 7, which is fixed on the substrate 1. The temperature sensing end of the temperature controller 7 abuts against a portion of the first heating wire 2 and / or a portion of the second heating wire 3. The two conductive pins 71 of the temperature controller 7 are electrically connected to one of the second conductive sheets 5, respectively. The temperature controller 7 is used to control the temperature range of the first heating wire 2 and the second heating wire 3 when heating the substrate 1.

[0021] Each conductive terminal 6 is fixed to the substrate 1 by two spaced-apart first rivets 61. Each conductive terminal 6 is in contact with the first conductive sheet 4 at the corresponding position and conducts electricity. The two conductive terminals 6 are used to connect the positive wire and the negative wire, respectively. With this structure, each conductive terminal can be reliably fixed to the substrate by the first rivets. Since each conductive terminal is in contact with the first conductive sheet at the corresponding position and conducts electricity, after each conductive terminal is fixed to the substrate by the first rivets, each conductive terminal can be reliably electrically connected to the first conductive sheet.

[0022] The two conductive pins 71 of the thermostat 7 are respectively fixed to the substrate 1 by a second rivet 72. The two conductive pins 71 of the thermostat 7 are respectively in contact with one of the second conductive sheets 5 for conduction. The thermostat 7 is fixed to the substrate 1 by the two second rivets 72, so that the temperature sensing end of the thermostat 7 abuts against a portion of the first heating wire 2 and / or a portion of the second heating wire 3. With this structure, after the two conductive pins of the thermostat are fixed to the substrate by the second rivets on the corresponding sides, the thermostat as a whole can be reliably fixed to the substrate, and the temperature sensing end of the thermostat can be reliably abut against a portion of the first heating wire and / or a portion of the second heating wire. In addition, after the two conductive pins of the thermostat are fixed to the substrate by the second rivets on the corresponding sides, both conductive pins of the thermostat can reliably contact the second conductive sheet at the corresponding position for conduction.

[0023] A first adhesive film 8 is bonded and fixed to the front side of the substrate 1. The first adhesive film 8 is used to bond and fix to the back of the mirror glass in the car exterior rearview mirror. With this structure, the mirror glass in the car exterior rearview mirror can be reliably bonded and fixed to the front side of the substrate by the first adhesive film, so that the first heating wire, the second heating wire and the substrate can reliably heat the mirror glass (the heat generated when the first heating wire and the second heating wire are heated can be diffused to the substrate so that the substrate can reliably heat the mirror glass. The substrate is made of aluminum material).

[0024] A second film 9 is bonded and fixed to the rear side of the substrate 1. The second film 9 is used to bond and fix to the support plate inside the car exterior rearview mirror. The second film 9 is provided with a first clearance opening 91 for avoiding the two conductive terminals 6, and a second clearance opening 92 for avoiding the thermostat 7. With this structure, the substrate can be reliably bonded and fixed to the support plate inside the car exterior rearview mirror by the second film.

[0025] The temperature controller 7 controls the temperature range of the first heating wire 2 and the second heating wire 3 when heating the substrate 1 to 50-70 degrees Celsius. With this structure, when the temperature controller detects that the substrate temperature is below 50 degrees Celsius, the temperature controller is turned on to connect the first and second heating wires. At this time, the first and second heating wires start to heat the substrate. When the temperature controller detects that the substrate temperature is above 70 degrees Celsius, the internal contacts of the temperature controller are opened to disconnect the first and second heating wires. At this time, the first and second heating wires stop heating the substrate, thereby maintaining the substrate temperature between 50-70 degrees Celsius. This avoids overheating of the substrate and prevents the first and second heating wires from overheating and melting.

[0026] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An electric heating element for an automotive exterior rearview mirror with a temperature controller, comprising a substrate (1), characterized in that: The substrate (1) is fixed with a first heating wire (2), a second heating wire (3), two first conductive sheets (4) and two second conductive sheets (5); the two ends of the first heating wire (2) are electrically connected to one of the first conductive sheets (4) and one of the second conductive sheets (5) respectively, and the two ends of the second heating wire (3) are electrically connected to another first conductive sheet (4) and another second conductive sheet (5) respectively; each of the two first conductive sheets (4) is electrically connected with a conductive terminal (6); the electric heating element of the car exterior rearview mirror also includes a temperature controller (7), the temperature controller (7) is fixed on the substrate (1), the temperature sensing end of the temperature controller (7) abuts against a portion of the first heating wire (2) and / or a portion of the second heating wire (3), and the two conductive pins (71) of the temperature controller (7) are electrically connected to one of the second conductive sheets (5) respectively; the temperature controller (7) is used to control the temperature range when the first heating wire (2) and the second heating wire (3) heat the substrate (1).

2. The electric heating element for a car exterior rearview mirror with a temperature controller according to claim 1, characterized in that: Each of the conductive terminals (6) is fixed to the substrate (1) by two spaced first rivets (61), and each of the conductive terminals (6) is in contact with the first conductive sheet (4) at the corresponding position to conduct electricity. The two conductive terminals (6) are used to connect the positive electrode wire and the negative electrode wire, respectively.

3. The electric heating element for a car exterior rearview mirror with a temperature controller according to claim 1, characterized in that: The two conductive pins (71) of the thermostat (7) are respectively fixed to the substrate (1) by a second rivet (72), and the two conductive pins (71) of the thermostat (7) are respectively in contact with one of the second conductive sheets (5) for conduction; the thermostat (7) is fixed to the substrate (1) by two second rivets (72) and the temperature sensing end of the thermostat (7) is pressed against a portion of the first heating wire (2) and / or a portion of the second heating wire (3).

4. The electric heating element for automotive exterior rearview mirrors with a temperature controller according to any one of claims 1-3, characterized in that: The front side of the substrate (1) is bonded with a first film (8), which is used to bond and fix to the back of the mirror glass in the car exterior rearview mirror.

5. The electric heating element for automotive exterior rearview mirrors with a temperature controller according to any one of claims 1-3, characterized in that: The second film (9) is bonded and fixed to the rear side of the substrate (1). The second film (9) is used to bond and fix to the support plate inside the car exterior rearview mirror. The second film (9) is provided with a first clearance opening (91) for avoiding two conductive terminals (6). The second film (9) is also provided with a second clearance opening (92) for avoiding the thermostat (7).

6. The electric heating element for automotive exterior rearview mirrors with a temperature controller according to any one of claims 1-3, characterized in that: The temperature controller (7) controls the temperature range of the first heating wire (2) and the second heating wire (3) when heating the substrate (1) to be 50-70 degrees.

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