Toggle switch based on etched circuit board

Abstract

This utility model discloses a toggle switch based on an etched circuit board, comprising: a housing, a circuit board substrate, a contact assembly, a lever, and an elastic component. The circuit board substrate integrates conductive lines and multiple contacts, and its surface is covered with a wear-resistant plating layer. The contact assembly has multiple contact areas symmetrically arranged at both ends, with each contact area corresponding to a contact. The contact assembly is semi-embedded in a trapezoidal groove at the top of the lever. The circuit board substrate and the housing are securely connected by corresponding snap-fit ​​structures. The contact assembly is driven by the lever to contact or separate from the contacts. This utility model replaces the traditional insulating board and copper pin terminals with an etched circuit board substrate, achieving integrated circuit design, reducing volume by more than 30%, and simplifying the process. The etching process replaces traditional multi-step processing, greatly improving production efficiency. This utility model has a simple structure, small size, is easy to process and assemble, has high production efficiency, low cost, and is environmentally friendly, making it highly valuable for widespread application.

Description

Technical Field

[0001] This utility model relates to the field of electronic switch technology, and in particular to a toggle switch based on an etched circuit board. Background Technology

[0002] A toggle switch is a switch that connects or disconnects a circuit by moving a switch handle, thereby switching the circuit. Common types of toggle switches include single-pole double-position, single-pole triple-position, double-pole double-position, and double-pole triple-position switches. They are generally used in low-voltage circuits and are characterized by flexible slider action and stable and reliable performance. Toggle switches are widely used in instruments / meters, electric toys, and other electronic products.

[0003] Traditional toggle switches consist of an insulating plate, copper pin terminals, a handle, and a housing. Their manufacturing requires stamping copper terminals and pressing them into the insulating plate, which is a complex process. Furthermore, copper terminals have low strength and are prone to deformation, leading to poor contact. Copper is also prone to oxidation, causing switch failure and a short product lifespan. Additionally, the upper part of the terminals is used for on / off connection, and the protruding pins at the bottom require welding wires, resulting in a large size and hindering the miniaturization design of electronic devices.

[0004] Existing technologies using discrete copper terminals require multiple assembly processes, resulting in low production efficiency.

[0005] Therefore, our company has developed a toggle switch based on an etched circuit board, which replaces the traditional insulating board and copper pin terminals with an etched circuit board, solving the problems of high cost, complex manufacturing process and large size caused by the reliance on copper materials in traditional toggle switches. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a toggle switch based on an etched circuit board that has a simplified structure, small size, is easy to process and assemble, has high production efficiency, low cost and is environmentally friendly.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0008] A toggle switch based on an etched circuit board includes: a housing, a circuit board substrate, a contact assembly, a lever, and a resilient component. The rear side of the lever is embedded with a cavity for mounting the resilient component. The circuit board substrate integrates conductive lines and multiple contacts. The surface of the circuit board substrate is covered with a wear-resistant plating layer. The contact assembly has multiple contact areas symmetrically arranged at both ends, and the multiple contact areas are corresponding to the multiple contacts. The contact assembly is semi-embedded in a trapezoidal groove provided at the top of the lever. The circuit board substrate and the housing are fastened together by corresponding snap-fit ​​structures. The contact assembly is driven by the lever to contact or separate from the contacts.

[0009] In the above structure, the circuit board substrate is symmetrically provided with multiple mounting holes, the multiple mounting holes are symmetrically arranged, the outer side of the circuit board substrate is embedded with multiple limiting grooves, and the thickness of the circuit board substrate is greater than 0.8mm.

[0010] In the above structure, the contact assembly includes two contact pieces, each with a positioning hole through its center, and each contact end of the two contact pieces has a longitudinally extending arc-shaped protrusion structure. Multiple contact areas are located on the arc-shaped protrusion structure, and the multiple contact areas form surface contact with the corresponding contact points.

[0011] In the above structure, the thickness of the wear-resistant coating is 0.03-0.1 mm.

[0012] In the above structure, the outer shell is a U-shaped groove structure, and a T-shaped groove is provided through the front side of the outer shell. The T-shaped groove matches the lever. The upper part of the outer shell is provided with multiple buckle structures, and the multiple buckle structures are provided with multiple mounting holes. The bottom of the outer shell is provided with a guide groove.

[0013] In the above structure, the trapezoidal groove is embedded in the top surface of the lever. There are two trapezoidal grooves, and each of the two trapezoidal grooves has a positioning protrusion in the middle position inside. The positioning protrusion matches the corresponding positioning hole.

[0014] In the above structure, the bottom of the lever is provided with at least one limiting rib, and at least one limiting rib matches the corresponding guide groove. The lever is made of insulating material.

[0015] In the above structure, the elastic component includes a spring and a steel ball, the steel ball being movably disposed at the end of the spring that contacts the outer shell, and the spring and steel ball matching the concave cavity.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention replaces the traditional insulating board and copper pin terminals with an etched circuit board substrate. Conductive lines and contacts are formed on the circuit board surface, which is covered with a wear-resistant plating layer (such as gold or nickel plating). The integrated circuit board design reduces the overall volume by more than 30%, simplifies the process, and replaces traditional multi-step processing with etching, greatly improving production efficiency. The contact assembly is made of a flexible metal sheet and is driven by a handle to contact or separate from the contacts on the etched circuit board, thus achieving circuit switching. This eliminates the stamping and assembly processes for copper terminals, significantly reducing production costs. This invention has a simple structure, small size, is easy to process and assemble, has high production efficiency, low cost, and is environmentally friendly. Attached Figure Description

[0018] Figure 1This is a front view of an embodiment of the toggle switch based on an etched circuit board according to this utility model;

[0019] Figure 2 This is a right view of an embodiment of the toggle switch based on an etched circuit board according to this utility model;

[0020] Figure 3 This is a top view of an embodiment of the toggle switch based on an etched circuit board according to the present invention;

[0021] Figure 4 This is a schematic diagram of the internal structure of an embodiment of the toggle switch based on an etched circuit board according to this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of an embodiment of the toggle switch based on an etched circuit board according to the present invention.

[0023] Figure 6 This is an exploded view of the structure of an embodiment of the toggle switch based on an etched circuit board according to this utility model.

[0024] In the diagram, 1-outer shell, 2-circuit board substrate, 3-handle, 4-contact piece, 5-spring, 6-steel ball. Detailed Implementation

[0025] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0026] like Figure 1-6 As shown, a toggle switch based on an etched circuit board includes: a housing 1, a circuit board substrate 2, a contact assembly, a lever 3, and an elastic component. The rear side of the lever 3 is embedded with a cavity for mounting the elastic component. The circuit board substrate 2 integrates conductive lines and multiple contacts. The surface of the circuit board substrate 2 is covered with a wear-resistant plating layer. The contact assembly has multiple contact areas symmetrically arranged at both ends, and the multiple contact areas are corresponding to multiple contacts. The contact assembly is semi-embedded in a trapezoidal groove provided on the top of the lever 3. The circuit board substrate 2 and the housing 1 are fastened together by corresponding snap-fit ​​structures. The contact assembly is driven by the lever 3 to contact or separate from the contacts.

[0027] Specifically, in this embodiment, the contact assembly is made of an elastic metal sheet, and the contact area between the contact and the circuit board contact is designed as an arc-shaped protrusion to enhance contact stability, while the trapezoidal groove ensures accurate movement trajectory of the contact.

[0028] In a preferred embodiment of the present invention, a plurality of mounting holes are symmetrically provided on the circuit board substrate 2, and the plurality of mounting holes are symmetrically arranged. A plurality of limiting grooves are embedded in the outer side of the circuit board substrate 2, and the thickness of the circuit board substrate 2 is greater than 0.8mm.

[0029] Specifically, in this embodiment, the circuit board is made of FR-4 material with a thickness of 0.8-1.2mm, and the conductive lines are formed in one step by etching process.

[0030] In a preferred embodiment of the present invention, the contact assembly includes two contact pieces 4, each with a positioning hole through its center, and each contact end of the two contact pieces 4 having a longitudinally extending arc-shaped protrusion structure. Multiple contact areas are located on the arc-shaped protrusion structure, and the multiple contact areas form surface contact with the corresponding contact points.

[0031] In a preferred embodiment of this invention, the thickness of the wear-resistant coating is 0.03-0.1 mm.

[0032] In a preferred embodiment of the present invention, the outer shell 1 is a U-shaped groove structure, and a T-shaped groove is provided through the front side of the outer shell 1. The T-shaped groove matches the lever 3. The upper part of the outer shell 1 is provided with multiple buckle structures, and the multiple buckle structures are provided with multiple mounting holes. The bottom inner side of the outer shell 1 is provided with a guide groove.

[0033] Specifically, in this embodiment, the outer shell 1 is made of metal or plastic material, and the guide groove can be set according to the structure or material of the outer shell. If the outer shell is metal, it can be omitted; the free end of the lever 3 passes through the T-shaped groove.

[0034] In a preferred embodiment of this utility model, a trapezoidal groove is embedded in the top surface of the lever 3. There are two trapezoidal grooves, and a positioning protrusion is provided in the middle of the interior of each of the two trapezoidal grooves. The positioning protrusion matches the corresponding positioning hole.

[0035] Specifically, in this embodiment, the trapezoidal groove matches the contact piece to ensure accurate movement trajectory of the contact piece.

[0036] In a preferred embodiment of this utility model, the bottom of the lever 3 is provided with at least one limiting rib, and the at least one limiting rib matches the corresponding guide groove. The lever 3 is made of insulating material.

[0037] In a preferred embodiment of this utility model, the elastic component includes a spring 5 and a steel ball 6. The steel ball 5 is movably disposed at the end of the spring 6 that contacts the outer shell 1, and the spring 5 and the steel ball 6 are matched with the cavity.

[0038] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A toggle switch based on etching a circuit board, characterized by, include: The device comprises a housing, a circuit board substrate, a contact assembly, a lever, and an elastic component. The lever has a recessed cavity for mounting the elastic component embedded on its rear side. The circuit board substrate integrates conductive lines and multiple contacts. The surface of the circuit board substrate is covered with a wear-resistant plating layer. The contact assembly has multiple contact areas symmetrically arranged at both ends, and the multiple contact areas correspond to the multiple contacts. The contact assembly is semi-embedded in a trapezoidal groove on the top of the lever. The circuit board substrate and the housing are fastened together by corresponding snap-fit ​​structures. The contact assembly is driven by the lever to contact or separate from the contacts.

2. The toggle switch based on an etched circuit board according to claim 1, characterized in that, The circuit board substrate is symmetrically provided with multiple mounting holes, and the multiple mounting holes are symmetrically arranged. Multiple limiting grooves are embedded in the outer side of the circuit board substrate, and the thickness of the circuit board substrate is greater than 0.8 mm.

3. The toggle switch based on an etched circuit board according to claim 2, characterized in that, The contact assembly includes two contact pieces, each with a positioning hole through its center. The contact ends of the two contact pieces are longitudinally extended with arc-shaped protrusions. Multiple contact areas are located on the arc-shaped protrusions, and the multiple contact areas form surface contact with the corresponding contact points.

4. The toggle switch based on an etched circuit board according to claim 1, characterized in that, The thickness of the wear-resistant coating is 0.03-0.1 mm.

5. The toggle switch based on an etched circuit board according to claim 2, characterized in that, The outer casing has a U-shaped groove structure, and a T-shaped groove is provided through the front side of the outer casing. The T-shaped groove matches the lever. The upper part of the outer casing is provided with multiple buckle structures, and the multiple buckle structures are provided with multiple mounting holes.

6. The toggle switch based on an etched circuit board according to claim 3, characterized in that, The trapezoidal groove is embedded in the top surface of the lever. There are two trapezoidal grooves, and each of the two trapezoidal grooves has a positioning protrusion in the middle position inside. The positioning protrusion matches the corresponding positioning hole.

7. The toggle switch based on an etched circuit board according to claim 5, characterized in that, The bottom of the lever is provided with at least one limiting rib, and at least one of the limiting ribs matches the guide groove provided on the bottom of the outer shell. The lever is made of insulating material.

8. The toggle switch based on an etched circuit board according to claim 1, characterized in that, The elastic component includes a spring and a steel ball, the steel ball being movably disposed at the end of the spring that contacts the outer shell, and the spring and steel ball matching the cavity.

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