Contact type connecting structure for conductive tongue piece of automotive glass

Abstract

The utility model relates to an automobile glass conductive tongue piece contact type connecting structure, which comprises a conductive tongue piece and a rubber coating injection molding piece, the conductive tongue piece comprises a main body connecting part at the lower part and a conductive terminal at the upper part, and the rubber coating injection molding piece is wrapped outside the main body connecting part of the conductive tongue piece. The lower sides of the two ends of the rubber coating injection molding part are provided with rubber sheets used for being bonded with an automobile glass silver coating, and the lower side of the main body connecting part of the conductive tongue piece is riveted with a metal elastic piece used for making contact with the automobile glass silver coating. The automobile glass conductive tongue piece contact type connection structure is reasonable in design, novel in structure and convenient and firm to install, good contact is kept for a long time, and the conductive tongue piece is more stable and reliable in the aspects of fixation and conduction.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile glass conductivity, in particular to an automobile glass conductive tongue contact connection structure. Background Art

[0002] With the development of automobiles, automotive glass is increasingly being equipped with more and more functions, such as heating, which requires electrical connection. Currently, the conductive connection method for automotive glass is to fix the conductive tongue with solder spot welding on the silver layer of the automotive glass. However, solder spot welding can cause problems such as cold joints and loose fixation, which can easily lead to the failure of the conductive function. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide a novel structure and easy installation of automobile glass conductive tongue contact connection structure, so that the conductive tongue is more stable and reliable in terms of fixation and conduction.

[0004] The utility model is implemented by the following scheme: a contact connection structure of a conductive tongue of automobile glass, comprising a conductive tongue and an overmolded part, wherein the conductive tongue comprises a main connecting part at a lower portion and a conductive terminal at an upper portion, the overmolded part is wrapped around the outside of the main connecting part of the conductive tongue, and films for bonding to the silver-plated layer of automobile glass are provided on the lower sides of both ends of the overmolded part, and a metal spring for contacting the silver-plated layer of automobile glass is riveted on the lower side of the main connecting part of the conductive tongue.

[0005] Furthermore, an upwardly protruding limiting protrusion is provided on the upper side of the metal spring, and a limiting slot adapted to the limiting protrusion is provided on the outside of the main connecting portion of the conductive tongue.

[0006] Furthermore, bosses are provided on the lower sides of both ends of the overmolded part, the plastic sheet is located on the bottom surface of the bosses, and the metal spring is located between the bosses at both ends.

[0007] Furthermore, the lower side surface of the main connecting part of the conductive tongue is located between the two bosses and is exposed from the bottom surface of the overmolded injection molded part; the upper part of the metal spring and the conductive tongue are riveted together by a hollow rivet, and the upper side of the overmolded injection molded part is provided with a clearance groove that exposes the limiting slot hole on the upper side surface of the main connecting part of the conductive tongue and the area where the hollow rivet is located.

[0008] Furthermore, the conductive tongue also includes a vertical connecting portion that connects the main body connecting portion and the conductive terminal into one.

[0009] Compared with the prior art, the present invention has the following beneficial effects: the contact connection structure of the conductive tongue of the automobile glass of the present invention is reasonably designed, novel in structure, easy and firm to install, and maintains good contact for a long time, making the conductive tongue more stable and reliable in terms of fixation and conduction.

[0010] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below through specific embodiments and related drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional diagram of an embodiment of the utility model;

[0012] Figure 2 This is a front view of an embodiment of the utility model;

[0013] Figure 3 This is a cross-sectional view of an embodiment of the utility model;

[0014] Figure 4 This is a schematic diagram of the use state of the embodiment of the utility model;

[0015] Explanation of the numbers in the figure: 100-conductive tongue, 110-main body connection part, 111-limiting slot, 120-conductive terminal, 130-vertical connection part, 200-overmolded injection molded part, 210-boss, 220-clearance groove, 300-metal spring, 310-limiting protrusion, 400-film, 500-hollow rivet, 600-automotive glass, 610-silver plating layer. DETAILED DESCRIPTION

[0016] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0017] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0018] like Figures 1 to 4The figure shows a conductive tongue contact connection structure for automotive glass, comprising a conductive tongue 100 and an overmolded part 200. The conductive tongue comprises a lower main connecting portion 110 and an upper conductive terminal 120. The overmolded part 200 wraps around the main connecting portion of the conductive tongue. Film 400 is provided on the underside of each end of the overmolded part for bonding to the silver-plated layer 610 of the automotive glass 600. The film is a room-temperature structural film, such as, but not limited to, acrylic adhesive. A metal spring 300 is riveted to the underside of the main connecting portion of the conductive tongue, contacting the silver-plated layer 610 of the automotive glass 600. The connection between the conductive tongue and the glass is implemented in a two-part structural manner. The first part is to wrap the conductive tongue with an overmolded part to connect it to the conductive tongue as one. The overmolded part is bonded to the silver-plated layer of the automobile glass through the film, thereby fixing the conductive tongue. The bonding of the film and the glass plays a role in fixing the entire structure. The second part is to pre-rivet the conductive tongue and the metal spring. When the overmolded part is fixed to the silver-plated layer of the automobile glass, the lower part of the metal spring just presses against the silver-plated layer. The interference contact between the metal spring and the silver-plated layer is utilized to make the conductive tongue contact and conduct with the silver-plated layer through the metal spring. The metal spring can maintain good contact with the silver-plated layer for a long time by using the pre-compression form provided by the elastic force. This structure makes the conductive tongue more stable and reliable in terms of fixation and conductivity.

[0019] In this embodiment, the metal dome 300 is provided with an upwardly projecting retaining protrusion 310 on its upper side, and the main connecting portion of the conductive tongue is provided with a retaining slot 111 that mates with the retaining protrusion. The retaining protrusion 310 and retaining slot 111 limit the angle of the metal dome 300, preventing the metal dome 300 from rotating around the riveted joint during riveting or subsequent use. The metal dome is formed by bending a metal sheet into a roughly V-shaped structure, consisting of a horizontal upper portion and an inclined lower portion.

[0020] In this embodiment, bosses 210 are provided on the lower sides of both ends of the overmolded part, the plastic is located on the bottom surface of the bosses, and the metal spring is located between the bosses at both ends.

[0021] In this embodiment, the lower side of the conductive tongue's main connecting portion, located between the two bosses, is exposed from the bottom surface of the overmolded component. The upper portion of the metal spring is riveted to the conductive tongue via a hollow rivet 500. The overmolded component has a recess 220 on its upper side, exposing the retaining slot on the upper side of the conductive tongue's main connecting portion and the hollow rivet area. The hollow rivet is made of copper, which provides the metal spring with excellent conductivity and elasticity, ensuring greater stability for the overall structure during subsequent conduction. Phosphor bronze is preferred, but not limited to, copper.

[0022] In this embodiment, the conductive tongue further includes a vertical connecting portion 130 that connects the main connecting portion and the conductive terminal into one.

[0023] The manufacturing process of the conductive tongue contact connection structure of automobile glass is as follows: 1. The metal sheet is bent once to form an L-shaped conductive tongue, and the conductive tongue is fixed to the metal spring by riveting; 2. The conductive tongue is placed in an injection mold for overmolding, and the lower part of the conductive tongue is wrapped with the overmolded part; 3. The upper end of the conductive tongue is bent twice to form a conductive terminal; 4. Film is attached to the bottom of both ends of the overmolded part; 5. The conductive tongue is fixed to the silver-plated layer of the automobile glass through the film, and the metal spring contacts the silver-plated layer to make the conductive tongue and the silver-plated layer conductive.

[0024] Unless otherwise stated, any numerical range disclosed for any technical solution disclosed in the present invention is a preferred numerical range. Those skilled in the art should understand that a preferred numerical range is merely a numerical range that provides a more significant or representative technical effect among a wide range of practicable values. Due to the large number of numerical values, it is impossible to enumerate them exhaustively. Therefore, only some numerical values are disclosed in the present invention to illustrate the technical solution of the present invention. Furthermore, the numerical values listed above should not be construed as limiting the scope of protection of the present invention.

[0025] If the present invention discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by integral molding using a casting process) (except where it is obviously not possible to use an integrated molding process).

[0026] In addition, unless otherwise stated, the terms used in any technical solution disclosed in the above-mentioned utility model to express positional relationships or shapes include states or shapes that are approximate, similar or close thereto.

[0027] Any component provided by the present invention can be assembled from multiple separate components, or can be a separate component manufactured by an integral forming process.

[0028] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation thereto. Any person skilled in the art may utilize the above disclosure to modify or remodel the present invention into equivalent embodiments. However, any simple modifications, equivalent variations, and modifications to the above embodiments that do not depart from the technical content of the present invention and are based on the technical essence of the present invention shall remain within the scope of protection of the present invention.

Claims

1. A conductive tongue contact connection structure for automotive glass, characterized by: It includes a conductive tongue and an overmolded part. The conductive tongue includes a main connecting part at the bottom and a conductive terminal at the top. The overmolded part is wrapped around the outside of the main connecting part of the conductive tongue. The lower sides of the two ends of the overmolded part are provided with films for bonding to the silver-plated layer of the automobile glass. The lower side of the main connecting part of the conductive tongue is riveted with a metal spring for contacting the silver-plated layer of the automobile glass.

2. The automotive glass conductive tongue contact connection structure according to claim 1, characterized in that: An upwardly protruding limiting protrusion is provided on the upper side of the metal spring piece, and a limiting slot hole adapted to the limiting protrusion is provided on the outside of the main connecting portion of the conductive tongue piece.

3. The automotive glass conductive tongue contact connection structure according to claim 2, characterized in that: Bosses are provided on the lower sides of both ends of the overmolded part, the plastic sheet is located on the bottom surface of the bosses, and the metal spring is located in the middle of the bosses at both ends.

4. The automotive glass conductive tongue contact connection structure according to claim 3, characterized in that: The lower side surface of the main connecting part of the conductive tongue is located between the two bosses and is exposed from the bottom surface of the overmolded part; the upper part of the metal spring is riveted to the conductive tongue by a hollow rivet, and the upper side of the overmolded part is provided with a relief groove that exposes the limiting slot hole on the upper side surface of the main connecting part of the conductive tongue and the area where the hollow rivet is located.

5. The automotive glass conductive tongue contact connection structure according to claim 1, characterized in that: The conductive tongue also includes a vertical connecting portion that connects the main body connecting portion and the conductive terminal into one.

Images