Glass electric connection structure

Abstract

The utility model provides a glass electric connection structure, which is applied to the technical field of glass welding, and comprises a glass body, a flexible conductive woven belt, a connecting element, a welding flux and an insertion sheet, the connecting element comprises at least one area which is wetted and welded by the welding flux and is configured to be welded with the glass body by the welding flux; one end of the flexible conductive woven belt is welded with the connecting element, and the other end of the flexible conductive woven belt is welded with the insertion sheet; the insertion piece is electrically connected with an external device. The glass body and the external device are flexibly connected through the flexible effect of the flexible conductive woven belt, the flexible conductive woven belt can bear the vibration effect of the glass body and the external device due to the flexible effect, and connection between the flexible conductive body and the glass body and connection between the flexible conductive body and the external device are not prone to loosening. And the stability of the electrical connection performance between the glass body and the external device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of glass welding, and in particular to a glass electrical connection structure. Background Art

[0002] Automotive glass welding involves welding automotive glass to conductive circuits, heating circuits, and antenna terminals. Examples include welding the windshield and rear window to the defogger, and welding the glass to wireless antennas. Typically, conductive circuits, heating element wires, and antennas are created by printing and sintering silver paste onto the glass. These are then connected to terminals or connectors to establish electrical connections with external components. Solder is often used for automotive glass welding. Soldering disperses stress between the glass and terminals, preventing cracking, and also provides a high-strength bond between the terminals and the glass.

[0003] During the welding process of automotive glass, one end of a conductor is welded to the glass, while the other end is electrically connected to an external device. This conductor creates a rigid connection between the glass and the external device. During driving, the glass and external device are susceptible to vibration due to the overall vibration of the vehicle. This vibration can easily loosen and wear the rigid conductor's connection to the glass and external device, leading to unstable electrical connection performance between the glass and external device.

[0004] Based on this, a new technical solution is needed. Utility Model Content

[0005] In view of this, an embodiment of this specification provides a glass electrical connection structure.

[0006] The embodiments of this specification provide the following technical solutions:

[0007] The embodiment of this specification provides a glass electrical connection structure, characterized by comprising a glass body, a flexible conductive braid, a connecting element, solder, and an insert;

[0008] The connecting element comprises at least one region wetted and welded by the solder, and is configured so that the connecting element and the glass body are welded by the solder;

[0009] One end of the flexible conductive braided belt is welded to the connecting element, and the other end of the flexible conductive braided belt is welded to the insert;

[0010] The plug-in piece is electrically connected to an external device.

[0011] Preferably, the flexible conductive braided belt includes a base material and a coating, and the coating covers the base material.

[0012] Preferably, the substrate comprises copper or iron-nickel alloy;

[0013] The plating layer is a silver plating layer.

[0014] Preferably, the flexible conductive braided belt is coated with a heat shrink tube.

[0015] Preferably, the flexible conductive braided belt is connected to the insert and the connecting element respectively by resistance welding.

[0016] Preferably, the solder is an indium alloy solder or a tin alloy solder.

[0017] Preferably, a plurality of bumps are provided under the connecting element, and are configured such that when the connecting element and the glass body are soldered together, the bumps are supported between the connecting element and the glass body.

[0018] Preferably, a stamping groove is formed on the upper surface of the connecting element, which is used to deform the lower surface of the connecting element to form the protrusion.

[0019] Preferably, the thickness of the connecting element is 0.8 mm.

[0020] Preferably, the connecting element is a welding bridge structure;

[0021] The thickness of the connecting element is comprised between 0.5 mm and 0.8 mm;

[0022] The surface of the connecting element close to the glass body is at least partially covered with the metal coating.

[0023] Compared with the prior art, the at least one technical solution adopted in the embodiments of this specification can achieve the following beneficial effects:

[0024] The present application welds the glass body to the insert by means of a connecting element, electrically connects the insert to the external device, and connects the insert to the connecting element with a flexible conductive braid. The glass body and the external device are flexibly connected by the flexible conductive braid. During the driving process of the vehicle, under the influence of the vehicle's vibration, the flexible conductive braid can withstand the vibration of the glass body and the external device due to its flexibility. The connection between the flexible conductive braid, the glass body, and the external device is not prone to loosening and wear, thereby improving the stability of the electrical connection performance between the glass body and the external device. The flexible conductive braid can also allow for the allowable deviation generated when the connecting element is welded to the glass body, thereby reducing the stress on the glass body. The flexible conductive braid can also adapt to a variety of external devices of different sizes, which is conducive to meeting the performance requirements of automobile windows. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] Figure 1 This is a schematic structural diagram of the glass electrical connection structure of the present application;

[0027] Figure 2 It is a schematic diagram of the flexible conductive braided belt of the present application containing an inductor element or a resistor;

[0028] Figure 3 This is a schematic diagram of the glass electrical connection structure of the present application when bent.

[0029] Reference numerals: 1. insert; 2. heat shrink tubing; 3. flexible conductive braid; 4. connecting element; 5. solder. DETAILED DESCRIPTION

[0030] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0031] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the features in the following embodiments and embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of this application.

[0032] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on this application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement an apparatus and / or practice a method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this apparatus and / or practice this method.

[0033] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The illustrations only show components related to the present application and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0034] Additionally, in the following description, specific details are provided to provide a thorough understanding of the examples, however, one skilled in the art will appreciate that the examples can be practiced without these specific details.

[0035] In view of this, the applicant conducted in-depth research and improvement exploration on glass welding and glass electrical connection structure, and found that: in recent years, with the continuous strengthening of environmental protection concepts, the automotive industry requires its parts and raw material suppliers to use lead-free raw materials, which includes lead-free solders for automotive glass welding. At present, conventional lead-free solders are used in the connection of glass conductors. The stress caused by expansion factors is relatively large, which makes glass cracking often occur. In the welding process of automotive glass, one end of the conductor is welded to the glass, and the other end of the conductor is electrically connected to the external device. The glass and the external device are rigidly connected by the conductor. The components between the glass and the external device, such as electromagnetic components and magnetic induction components, are prone to vibration due to the overall vibration of the car during driving. Due to the vibration, the connection between the rigid conductor and the glass body and the external device is prone to loosening and wear, which leads to the electrical connection performance between the glass body and the external device being relatively unstable, and even causes the rigid conductor to bend rigidly. In addition, when one end of the conductor has been welded to the glass, since the conductor and the glass are fixed structures and the conductor itself is also a rigid structure, if the angle and position of the conductor are deviated during welding, the other end of the deviated conductor will be more difficult to connect to the external device. When the deviated conductor is connected to the external device, it is also easy to cause greater stress on the glass, and even the other end of the conductor may not be able to adapt to a variety of external devices of different sizes.

[0036] Based on this, the technical solutions provided by the various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0037] The embodiment of this specification discloses a glass electrical connection structure, such as Figure 1 As shown, the device comprises a glass body, a flexible conductive braid 3, a connecting element 4, solder 5, and an insert 1. The connecting element 4 includes at least one area wetted with solder 5 and is configured so that the connecting element 4 and the glass body are welded together by solder 5. One end of the flexible conductive braid 3 is welded to the connecting element 4, and the other end of the flexible conductive braid 3 is welded to the insert 1. The insert 1 is electrically connected to an external device.

[0038] One end of the flexible conductive braided tape 3 can be welded to the connecting element 4, and the other end of the flexible conductive braided tape 3 can be welded to the insert 1. The insert 1 can be welded to an external device. The external device can be an external wire or an external connector. The glass body can be automobile glass or smart glass, specifically, it can be glass for automobile front and rear windshields, rearview mirrors, buildings, homes, etc.; the connecting element 4 is a soldering bridge, and one end of the flexible conductive braided tape 3 is located on the connecting element 4, that is, it is arranged on the side of the connecting element 4 away from the glass body, specifically, it can be the top of the soldering bridge; the other end of the flexible conductive braided tape 3 is electrically connected to the external device through the insert 1. The solder 5 is respectively arranged under the two ends of the connecting element 4, specifically, it can be under the two ends of the soldering bridge. The flexible conductive braided tape 3 contains at least copper, and the flexible conductive braided tape 3 can be a copper braided tape.

[0039] The flexible conductive braid 3 acts as a bridge to connect the connecting element 4 and the plug 1 to form an electrical conductor; it can not only meet the conductivity requirements, but also reduce the stress of welding the connecting element 4 to the glass. The flexibility can withstand the vibration of the glass body and external devices. The connection between the flexible conductive braid 3 and the glass body and external devices is not prone to loosening and wear, thereby improving the stability of the electrical connection performance between the glass body and external devices.

[0040] like Figure 2 As shown, the flexible conductive braid 3 is bent, and a resistor or inductor is connected to the flexible conductive braid 3, which divides the flexible conductive braid 3 into two sections. The end of the connecting element 4 is square, and the plug 1 is ring-shaped. Figure 3 As shown, the flexible conductive braided belt 3 is in a bent state, the end of the connecting element 4 is square in shape, and the plug 1 is also square in shape.

[0041] The connecting element 4 is electrically connected to the glass body, and the connecting element 4 is electrically connected to one end of the flexible conductive braided belt 3. The other end of the flexible conductive braided belt 3 is electrically connected to the plug-in 1, and the plug-in 1 is electrically connected to the external device to achieve electrical connection between the glass body and the external device.

[0042] In one embodiment, the flexible conductive braid 3 includes a base material and a coating, with the coating covering the base material. The flexible conductive braid 3 can be a connection terminal or a conductor. The flexible conductive braid 3 is disposed on the connecting element 4, on the side of the connecting element 4 facing away from the glass body. The flexible conductive braid 3 and the insert 1 are connected to the external conductor. The flexible conductive braid 3 is connected to the connecting element 4 and to the insert 1. The flexible conductive braid 3 is sized to be 0.65 mm thick.

[0043] In one embodiment, the substrate comprises copper or an iron-nickel alloy, and the plating layer is a silver plating layer or a lead-free tin plating layer. The silver plating layer or the lead-free tin plating layer covers the substrate copper or iron-nickel alloy.

[0044] In one embodiment, the flexible conductive braid 3 is covered with a heat shrink tube 2. The heat shrink tube 2 tightly wraps the flexible conductive braid 3 to protect the flexible conductive braid 3.

[0045] In one embodiment, the flexible conductive braided belt 3 is connected to the inserting piece 1 and the connecting element 4 by resistance welding. The connecting element 4 is connected to the flexible conductive braided belt 3, and the flexible conductive braided belt 3 is connected to the inserting piece 1.

[0046] In one embodiment, the solder 5 is an indium alloy solder or a tin alloy solder. Indium alloy solder includes indium, tin, silver, and copper; tin alloy solder includes tin, silver, and copper. Using indium alloy solder or tin alloy solder to solder the connecting element 4 to the glass body allows for a low melting point, imparting less heat to the glass body during welding, resulting in lower stress on the glass. Furthermore, the alloy solder exhibits a certain degree of ductility, which helps meet the performance requirements of automotive windows.

[0047] The glass electrical connection structure further comprises solder, and the glass body is welded to the connection element 4 by combining the solder 5 with the solder. The solder 5 connects the glass body and the connection element 4 together by soldering.

[0048] In one embodiment, a plurality of bumps are provided below the connecting element 4, configured so that when the connecting element 4 and the glass body are soldered together via the solder 5, the bumps are supported between the connecting element 4 and the glass body. When the connecting element 4 is soldered to the glass body via the solder 5, the bumps are supported between the connecting element 4 and the glass body. This, on the one hand, increases the contact area between the solder 5 and the connecting element 4, thereby enhancing the conductivity between the glass body and the connecting element 4, and on the other hand, prevents the solder 5 from overflowing between the connecting element 4 and the glass body. The bumps can be provided directly or formed by stamping from the top of the connecting element 4 and deforming it below the connecting element 4. The bumps are provided below the two ends of the connecting element 4, specifically below the two ends of the solder bridge, and contact the solder 5. The number of bumps at each end can be set to two, distributed in a rectangular shape.

[0049] In one embodiment, a punched groove is formed on the connecting element 4 to deform the bottom of the connecting element 4 to form a convex point. The punched groove can be a dimple-shaped groove, which is formed by punching the grooves on the top of the two ends of the solder bridge, so that the bottom of the two ends of the solder bridge is deformed to form a convex point.

[0050] In one embodiment, insert 1 connects to an external connector. Insert 1 is composed of at least copper or an iron-nickel alloy and further includes a silver plating layer. Insert 1 can be 0.3 mm to 0.8 mm thick, with a preferred thickness of 0.8 mm. Insert 1 is a crucial link connecting to external devices and docking with the external connector. Insert 1 is bent at an angle of approximately 75°. The surface is silver-plated, with a thickness of 5 to 7 μm.

[0051] In one embodiment, the thickness of the connecting element 4 is 0.8 mm, preferably 0.3 to 1 mm, particularly preferably 0.3 to 0.8 mm, and more preferably 0.5 to 0.8 mm. By limiting the thickness of the connecting element 4, the welding connection between the connecting element 4 and the glass body is ensured.

[0052] In one embodiment, the connecting element 4 is a solder bridge structure; the thickness of the connecting element 4 ranges from 0.5 mm to 0.8 mm; the surface of the connecting element 4 proximal to the glass body is at least partially covered with a metal coating. The metal coating can be located below both ends of the solder bridge, and the solder 5 is attached to the metal coating, thereby firmly connecting the solder 5 and the metal coating. The coating thickness ranges from 5 to 7 μm.

[0053] Connecting element 4 comprises a sheet-like structure of copper or iron-nickel alloy and a coating. In some embodiments, connecting element 4 comprises a sheet-like structure of copper or iron-nickel alloy and a silver coating. Connecting element 4 combines the advantages of the low melting point of indium alloy or tin alloy solder, thereby imparting less heat to the glass and generating relatively low stress, making it easier to handle during soldering. The sheet-like structure includes at least rounded corners and flat surfaces. Connecting element 4 can have various shapes, preferably with rounded corners and flat surfaces. The surface may have grooves, which may be dimpled. Connecting element 4 includes at least one area wetted with indium alloy solder. It can also be a closed surface, and having a surface that allows visual inspection of the soldering results is crucial and advantageous.

[0054] The above-mentioned connection structure is suitable for being welded to glass and electrically connected to electronic devices on the glass; for example: when heating and defrosting the front and rear windshields of a car, the connection element 4 is connected to the glass conductor assembly element through the above-mentioned solder 5, and the rear window can also be connected to an antenna for receiving radio signals; for example: an antenna connected to a radio receiver can be a conductive antenna element embedded in or deposited on the inner surface of the rear window glass; the antenna element is connected to an electrical contact strip on the inner surface of the rear window; the contact strip is composed of a conductive coating, and the typical contact strip is formed of a silver material.

[0055] This application connects to external devices by welding a flexible metal braid to the insert 1, and the other end is welded to the welding bridge connected to the glass body. The flexible structure makes the stress generated in the glass body lower, and the braided structure has a certain ductility, which is conducive to achieving the performance requirements of the automobile window.

[0056] Furthermore, the connecting element 4 is located on one side of the glass body, and the connecting element 4 and the glass body are connected via an indium alloy or tin solder. The connecting element 4 includes at least one area wetted with the indium alloy or tin solder to facilitate soldering between the connecting element 4 and the glass body. This application utilizes a flexible metal braid to connect the solder bridge and the insert 1, and the indium alloy or tin solder is used to solder the connecting element 4 to the glass body. The flexible metal braid 3 has a certain degree of flexibility and softness, and the solder has a low melting point, which applies less heat to the glass body during welding, resulting in lower stress on the glass. At the same time, the flexible conductive braid 3 and the solder have a certain degree of ductility, which is conducive to achieving the performance requirements of automotive windows.

[0057] The flexible conductive braided belt 3 in the present application has good electrical conductivity, wear resistance, strong antioxidant performance and high reliability. Automobile copper braided wire is a wire with high electrical conductivity, which can ensure the timely transmission of electrical energy signals, making the display of automobile instruments and other equipment more accurate. During the operation of the car, the copper braided wire can withstand constant friction and vibration, and is not prone to damage or wear, ensuring the stable operation of the automobile circuit system. During the driving of the car, the copper braided wire is not easily affected by oxidation, ensuring the long-term stability of the circuit system. The copper braided wire is woven from multiple strands of fine copper wire, has a high density, is not easy to break, and will not crack or break when bent and twisted, thereby improving the reliability of the circuit system.

[0058] In this specification, the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the embodiments described later, the description is relatively simple, and the relevant parts can be referred to the partial description of the previous embodiments.

[0059] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A glass electrical connection structure, characterized in that: It comprises a glass body, a flexible conductive braided belt (3), a connecting element (4), solder (5) and an insert (1); The connecting element (4) comprises at least one area for wetting and welding with the solder (5), and is configured so that the connecting element (4) and the glass body are welded by the solder (5); One end of the flexible conductive braided belt (3) is welded to the connecting element (4), and the other end of the flexible conductive braided belt (3) is welded to the insert (1); The plug-in sheet (1) is electrically connected to an external device.

2. The glass electrical connection structure according to claim 1, characterized in that: The flexible conductive braided belt (3) comprises a base material and a coating, and the coating is arranged to cover the base material.

3. The glass electrical connection structure according to claim 2, characterized in that: The substrate includes copper or iron-nickel alloy; The plating layer is a silver plating layer.

4. The glass electrical connection structure according to claim 1, characterized in that: The flexible conductive braided belt (3) is coated with a heat shrink tube (2).

5. The glass electrical connection structure according to claim 1, characterized in that: The flexible conductive braided belt (3) is respectively connected to the insert piece (1) and the connecting element (4) by resistance welding.

6. The glass electrical connection structure according to claim 1, characterized in that: The solder (5) is an indium alloy solder or a tin alloy solder.

7. The glass electrical connection structure according to claim 1, characterized in that: A plurality of protrusions are arranged below the connecting element (4), and are configured such that when the connecting element (4) and the glass body are welded together by means of solder (5), the protrusions are supported between the connecting element (4) and the glass body.

8. The glass electrical connection structure according to claim 7, characterized in that: A stamping groove is formed on the connecting element (4) to deform the bottom of the connecting element (4) to form the convex point.

9. The glass electrical connection structure according to claim 1, characterized in that: The thickness of the connecting element (4) is 0.8 mm.

10. The glass electrical connection structure according to claim 1, characterized in that: The connecting element (4) is a welding bridge-shaped structure; The thickness of the connecting element (4) is 0.5 mm to 0.8 mm; The surface of the connecting element (4) close to the glass body is at least partially covered with a metal coating.

Images