Key board preassembled two-way rocker switch

Abstract

The utility model relates to the technical field of electronic components, and particularly discloses a key board preassembled two-way rocker switch, which comprises a rectangular cover. The preassembled key board comprises a key board and a plurality of conductive metal domes fixedly arranged at the bottom of the key board; the two-way rotating shaft rocker is used for pressing the key board downwards after being driven; the circuit board is provided with a pair of conductive pads corresponding to the positions of the conductive metal domes; wherein the conductive metal dome has a disconnection state in which the conductive metal dome upwards recovers deformation to be separated from the two corresponding conductive bonding pads when not pressed, so that the two conductive bonding pads are disconnected; and in the conduction state, the two-way rotating shaft rocker is driven by the two-way rotating shaft rocker to move downwards until the two-way rotating shaft rocker is attached to the two corresponding conductive bonding pads, so that the two conductive bonding pads are conducted. The key board preassembled two-way rocker switch provided by the utility model can effectively solve the problem that the conductive metal domes are easy to shift in the assembling operation process, so that the assembling efficiency is relatively low.

Description

Technical Field

[0001] This utility model relates to the field of electronic components technology, and in particular to a keypad pre-installed two-way rocker switch. Background Technology

[0002] The inside of a rocker switch is usually equipped with a conductive dome. When the two-way rocker is rotated, the two-way rocker presses the conductive dome, causing the conductive dome to be recessed and contact the two electrical pads below it, thus making the two electrical pads conductive.

[0003] In existing rocker switches, the conductive dome switch is not pre-fixed to other components. Due to its light weight and small size, it is easily affected by vibration, airflow, and other factors during assembly, causing the conductive dome switch to shift. Because the conductive dome switch is prone to shifting, assembly workers need to spend a lot of time and effort adjusting its position to ensure it is correctly aligned with the electrical pads. This not only increases labor costs but also reduces production efficiency, negatively impacting the company's development.

[0004] Therefore, existing rocker switches need to be improved to solve the problem that the conductive dome switch is prone to displacement during the assembly process, resulting in low assembly efficiency.

[0005] The information disclosed in this background section is included only to enhance the understanding of the context of this disclosure, and therefore may contain information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0006] One objective of this invention is to provide a keypad-pre-installed two-way rocker switch, which can effectively solve the problem that the conductive dome switch is prone to displacement during the assembly process, resulting in low assembly efficiency.

[0007] To achieve the above objectives, this utility model provides a keypad-pre-installed two-way rocker switch, comprising:

[0008] Rectangular cover;

[0009] A pre-installed keypad is located below the rectangular cover, and together with the rectangular cover, it surrounds and forms an internal space; wherein, the pre-installed keypad includes a keypad and a plurality of conductive dome switches fixed to the bottom of the keypad.

[0010] A two-way rotating rocker arm is rotatably connected to the rectangular cover and is used to press the button panel downwards when driven.

[0011] The circuit board is located below the pre-assembled key plate, and the circuit board is provided with a pair of conductive pads corresponding to the position of each conductive dome switch.

[0012] The conductive dome switch has an open state where it recovers its upward deformation and detaches from the corresponding two conductive pads when not under pressure, thus disconnecting the two conductive pads; and an on state where it moves downward under the drive of the two-way rotating rocker arm to fit against the corresponding two conductive pads, thus making the two conductive pads conductive.

[0013] Optionally, the keypad includes a connecting substrate, wherein the connecting substrate is provided with a key post clearance hole corresponding to the position of each pair of conductive pads, and a floating pressure block is provided in the key post clearance hole;

[0014] Each of the floating blocks has a conductive dome switch fixed to its bottom.

[0015] Optionally, the conductive dome switch and the floating pressure block are fixed by adhesive bonding.

[0016] Optionally, the conductive dome switch and the floating pressure block are fixed by in-mold injection molding.

[0017] Optionally, the floating pressure block is connected to the wall of the keyway clearance hole via an elastic connecting arm.

[0018] Optionally, the two sides of the two-way rocker arm are provided with transverse pivots for rotating and inserting into the inner wall of the rectangular cover.

[0019] Optionally, each of the two-way rotating rocker arms is provided with a transverse pressure bar for pressing down on the floating pressure block at the position corresponding to the floating pressure block, and the rectangular cover is provided with a housing clearance groove at the position corresponding to each of the transverse pressure bars.

[0020] Optionally, the number of the transverse compression bars is two.

[0021] Optionally, each of the transverse pressure bars is provided with two floating pressure blocks, and a U-shaped flexible pressure block is provided between the transverse pressure bar and the two corresponding floating pressure blocks. The U-shaped flexible pressure block is provided with an upwardly protruding force-bearing protrusion at the position corresponding to the transverse pressure bar.

[0022] Optionally, the rectangular cover is fastened to the circuit board by fasteners, and the bottom of the rectangular cover is provided with a bolt connection post for the fasteners to be screwed in. The connecting base plate is provided with a U-shaped clearance groove corresponding to the position of the bolt connection post.

[0023] The beneficial effects of this utility model are as follows: It provides a keypad pre-installed two-way rocker switch. When the rocker switch is not operated, the conductive dome is in an unpressed state due to its elasticity. At this time, the conductive dome returns to its original shape and disengages from the two conductive pads below it, so that the conductive pads are in an open state.

[0024] When the operator rotates the two-way rocker arm, the rocker arm presses down on the button panel, which in turn transmits force to the conductive dome switch, causing the conductive dome switch to deform downwards until it contacts the conductive pad below, thus making the conductive pad conductive and completing the circuit closure.

[0025] In this design, the conductive dome is pre-installed on the bottom of the keypad, corresponding to the conductive pads on the circuit board, rather than being left freely placed. This design reduces the degree of freedom of movement of the conductive dome during assembly, lowering the risk of displacement due to vibration or airflow. Assembly workers do not need to position and fix the conductive dome during assembly, which greatly simplifies the assembly process and reduces assembly time. Furthermore, because the position of the conductive dome is pre-fixed, there is no need for fine-tuning of the spring contacts during assembly, thereby reducing the possibility of assembly errors and improving production efficiency.

[0026] Therefore, the keyplate pre-installed two-way rocker switch provided by this utility model can effectively solve the problem that the conductive dome switch is prone to displacement during the assembly process, resulting in low assembly efficiency. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 An exploded view of the keypad pre-installed two-way rocker switch provided in the embodiment;

[0029] Figure 2 A cross-sectional schematic diagram of a keypad-mounted two-way rocker switch provided in an embodiment;

[0030] Figure 3 This is a schematic diagram of the assembly process of the keypad pre-installed two-way rocker switch provided in the embodiment.

[0031] In the picture:

[0032] 1. Rectangular cover; 101. Housing clearance groove; 102. Positioning post; 103. Bolt connection post;

[0033] 2. Pre-installed key plate; 201. Key plate; 2011. Connecting base plate; 2011a. Key post clearance hole; 2011b. U-shaped clearance groove; 2012. Floating pressure block; 2013. Flexible connecting arm; 202. Conductive dome switch;

[0034] 3. Two-way rotating rocker arm; 301. Lateral pressure rod; 302. Lateral rotating shaft;

[0035] 4. Circuit board;

[0036] 5. U-shaped flexible pressure block; 501. Force-bearing protrusion. Detailed Implementation

[0037] In this utility model, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this utility model. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this utility model, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0038] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit the invention.

[0039] In the description of this utility model, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" logical relationship.

[0040] In this invention, 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 actual quantity, hierarchy, or order between these entities or operations.

[0041] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this invention is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a series of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0042] Similar to the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments of this utility model, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0043] In the description of the embodiments of this utility model, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the convenience of describing the specific embodiments of this utility model or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0044] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this utility model, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this utility model pertains, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0045] See Figure 1 and Figure 2 This utility model provides a keypad pre-installed two-way rocker switch, including a rectangular cover 1, a pre-installed keypad 2, a two-way rotating rocker 3, and a circuit board 4.

[0046] The pre-installed key plate 2 is located below the rectangular cover 1, and together with the rectangular cover 1, it forms an internal space. The pre-installed key plate 2 includes a key plate 201 and a plurality of conductive dome switches 202 fixed to the bottom of the key plate 201. The two-way rocker arm 3 is rotatably connected to the rectangular cover 1 and is used to press the key plate 201 downward when driven. The circuit board 4 is located below the pre-installed key plate 2, and the circuit board 4 is provided with a pair of conductive pads corresponding to the position of each conductive dome switch 202.

[0047] The conductive dome switch 202 has an open state where it recovers its upward deformation and detaches from the corresponding two conductive pads when not under pressure, thus disconnecting the two conductive pads; and an on state where it is driven downward by the two-way rotating rocker arm 3 to fit against the corresponding two conductive pads, thus making the two conductive pads conductive.

[0048] The keypad pre-installed two-way rocker switch provided in this embodiment, when the rocker switch is not operated, the conductive dome 202 is in an unpressed state due to the elastic effect. At this time, the conductive dome 202 restores its upward deformation and disengages from the two conductive pads below it, so that the conductive pads are in an open state.

[0049] When the operator rotates the two-way rocker arm 3, the two-way rocker arm 3 presses down on the button plate 201, and then the force is transmitted to the conductive dome 202 through the button plate 201, causing the conductive dome 202 to deform downward until it contacts the conductive pad below, thereby making the conductive pad conductive and completing the circuit closure.

[0050] In this design, the conductive dome switch 202 is pre-mounted on the bottom of the keypad 201, corresponding to the conductive pads on the circuit board 4, rather than being freely placed. This design reduces the degree of freedom of movement of the conductive dome switch 202 during assembly, lowering the risk of displacement due to vibration or airflow. Assembly workers do not need to position and fix the conductive dome switch 202 during assembly, which greatly simplifies the assembly steps and reduces assembly time. Furthermore, due to the pre-fixed position of the conductive dome switch 202, there is no need for fine-tuning of the spring contacts during assembly, thereby reducing the possibility of assembly errors and improving production efficiency.

[0051] Therefore, the key plate pre-installed two-way rocker switch provided by this utility model can effectively solve the problem that the conductive dome 202 is prone to displacement during the assembly process, resulting in low assembly efficiency.

[0052] Optionally, the keypad 201 includes a connecting substrate 2011. The connecting substrate 2011 has a keypost clearance hole 2011a corresponding to the position of each pair of conductive pads. A floating pressure block 2012 is provided within the keypost clearance hole 2011a, and the floating pressure block 2012 is connected to the hole wall of the keypost clearance hole 2011a via an elastic connecting arm 2013. A conductive dome switch 202 is fixed to the bottom of each floating pressure block 2012. Further, the conductive dome switch 202 and the floating pressure block 2012 are fixed by adhesive bonding or in-mold injection molding.

[0053] The two-way rocker arm 3 is provided with transverse rocker arms 302 on both sides for rotating and inserting into the inner wall of the rectangular cover 1. The two-way rocker arm 3 is provided with transverse pressure rods 301 for pressing down on the floating pressure block 2012 at the position corresponding to the floating pressure block 2012. The rectangular cover 1 is provided with a housing clearance groove 101 at the position corresponding to each of the transverse pressure rods 301.

[0054] The presence of the housing clearance groove 101 ensures that even with a relatively small overall height of the rectangular cover 1, the lateral pressure rod 301 has sufficient space during rocker arm movement and will not interfere with the rectangular cover 1. This helps to further reduce the size of the compact rocker switch and improve the structural compactness.

[0055] Optionally, there are two transverse pressure bars 301. Each transverse pressure bar 301 corresponds to two floating pressure blocks 2012, and a U-shaped flexible pressure block 5 is provided between the transverse pressure bar 301 and the corresponding two floating pressure blocks 2012. The U-shaped flexible pressure block 5 has an upwardly protruding force-bearing protrusion 501 at the position corresponding to the transverse pressure bar 301. After the force-bearing protrusion 501 concentrates the force, the U-shaped flexible pressure block 5 distributes the pressing force downward to the two floating pressure blocks 2012.

[0056] In the keypad-mounted two-way rocker switch, the U-shaped flexible pressure block 5 plays a role in transmitting pressure, buffering, maintaining stability, and adapting to deformation. It effectively transmits the movement and pressure of the two-way rocker arm 3 to the floating pressure block 2012, while reducing hard contact during operation, lowering vibration and noise, and improving user comfort and switch lifespan. Furthermore, the U-shaped flexible pressure block 5 prevents the floating pressure block 2012 from excessively compressing the conductive dome 202, protecting other sensitive components on the circuit board 4, simplifying the assembly process, and improving the overall reliability and lifespan of the product.

[0057] The rectangular cover 1 is fastened to the circuit board 4 by fasteners. The bottom of the rectangular cover 1 is provided with a bolt connection post 103 for the fasteners to be screwed in. The connecting base plate 2011 is provided with a U-shaped clearance groove 2011b corresponding to the position of the bolt connection post 103.

[0058] See Figure 3 The assembly process of the keypad pre-installed two-way rocker switch provided in this embodiment is as follows:

[0059] S10: Install the two-way rotating rocker arm 3 and two U-shaped flexible pressure blocks 5 into the rectangular cover 1 in sequence;

[0060] S20: Fix each of the conductive dome switches 202 to the bottom of the corresponding floating pressure block 2012 to obtain the pre-installed key plate 2;

[0061] S30: Place the pre-installed key plate 2 at the bottom of the rectangular cover 1, and then place the pre-installed key plate 2 and the rectangular cover 1 on top of the circuit board 4; further, the bottom of the rectangular cover 1 is provided with a positioning post 102, and the circuit board 4 is provided with a positioning hole for the positioning post 102 to be inserted, thereby completing the alignment operation between the rectangular cover 1 and the circuit board 4.

[0062] S40: After passing the fastener through the circuit board 4, screw it into the bolt connecting post 103. After tightening, the circuit board 4 can cooperate with the rectangular cover 1 to clamp the pre-installed key plate 2 in the middle.

[0063] In summary, the keypad-mounted two-way rocker switch provided in this embodiment has the following advantages:

[0064] ①Simplified assembly process: Since the conductive dome switch 202 is pre-installed on the bottom of the keypad 201, the assembly worker does not need to position and fix the conductive dome switch 202 during the assembly process, which greatly simplifies the assembly steps and reduces the assembly time.

[0065] ② Improve assembly efficiency: The pre-assembled design reduces the degree of freedom of movement of the conductive dome 202 during the assembly process, reduces the risk of displacement due to vibration or airflow, thereby reducing the possibility of assembly errors and improving production efficiency.

[0066] ③ Improve product reliability: The pre-fixing of the conductive dome 202 ensures the consistency of the position of the conductive dome 202 in each switch, which improves the quality stability of the product and extends the service life of the switch.

[0067] ④ Reduce assembly errors: Since there is no need to fine-tune the conductive dome 202, the possibility of human error is reduced, further improving the product qualification rate.

[0068] ⑤ Compact structure: By designing the housing clearance groove 101, the rectangular cover 1 can be designed to be smaller, which improves the structural compactness and is conducive to miniaturization design.

[0069] ⑥ Improve user comfort: The use of U-shaped flexible pressure block 5 reduces hard contact during joystick operation, reduces vibration and noise, and improves the user's operating experience.

[0070] ⑦ Easy to modify and upgrade: The conductive dome switch 202 can be fixed to the bottom of the floating pressure block 2012 by adhesive bonding. The modification requirements for other components are small. It can be directly modified on the basis of the existing rocker switch, which helps to reduce the pressure of existing product inventory when upgrading products and reduce product upgrade costs.

[0071] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A keypad-mounted two-way rocker switch, characterized in that, include: Rectangular cover (1); A pre-installed key plate (2) is located below the rectangular cover (1) and is used in conjunction with the rectangular cover (1) to form an internal space; wherein, the pre-installed key plate (2) includes a key plate (201) and a plurality of conductive dome switches (202) fixed to the bottom of the key plate (201). A two-way rotating rocker arm (3) is rotatably connected to the rectangular cover (1) and is used to press the button plate (201) downward after being driven. Circuit board (4), the circuit board (4) is located below the pre-installed key plate (2), and the circuit board (4) is provided with a pair of conductive pads corresponding to each of the conductive dome pieces (202); The conductive dome switch (202) has an open state where it recovers its upward deformation and detaches from the corresponding two conductive pads when not under pressure, thus disconnecting the two conductive pads; and a closed state where it is driven downward by the two-way rotating rocker arm (3) to fit against the corresponding two conductive pads, thus making the two conductive pads conductive.

2. The keypad pre-installed two-way rocker switch according to claim 1, characterized in that, The keypad (201) includes a connecting substrate (2011), and the connecting substrate (2011) is provided with a key post clearance hole (2011a) corresponding to the position of each pair of conductive pads. A floating pressure block (2012) is provided in the key post clearance hole (2011a). Each of the floating pressure blocks (2012) has a conductive dome switch (202) fixed to its bottom.

3. The keypad pre-installed two-way rocker switch according to claim 2, characterized in that, The conductive dome switch (202) and the floating pressure block (2012) are fixed by adhesive bonding.

4. The keypad pre-installed two-way rocker switch according to claim 2, characterized in that, The conductive dome switch (202) and the floating pressure block (2012) are fixed structures formed by in-mold injection molding.

5. The keypad pre-installed two-way rocker switch according to claim 2, characterized in that, The floating pressure block (2012) is connected to the wall of the keyway clearance hole (2011a) via an elastic connecting arm (2013).

6. The keypad pre-installed two-way rocker switch according to claim 4, characterized in that, The two-way rocker arm (3) is provided with transverse rocker arms (302) on both sides for rotating and inserting into the inner wall of the rectangular cover (1).

7. The keypad pre-installed two-way rocker switch according to claim 4, characterized in that, The two-way rotating rocker arm (3) is provided with a horizontal pressure bar (301) for pressing down on the floating pressure block (2012) at the position corresponding to the floating pressure block (2012), and the rectangular cover (1) is provided with a housing clearance groove (101) at the position corresponding to each of the horizontal pressure bars (301).

8. The keypad pre-installed two-way rocker switch according to claim 7, characterized in that, The number of the transverse pressure bars (301) is two.

9. The keypad pre-installed two-way rocker switch according to claim 8, characterized in that, Each of the transverse pressure bars (301) is provided with two floating pressure blocks (2012), and a U-shaped flexible pressure block (5) is provided between the transverse pressure bar (301) and the two corresponding floating pressure blocks (2012). The U-shaped flexible pressure block (5) is provided with an upwardly protruding force-bearing protrusion (501) at the position corresponding to the transverse pressure bar (301).

10. The keypad pre-installed two-way rocker switch according to claim 2, characterized in that, The rectangular cover (1) is fastened to the circuit board (4) by fasteners. The bottom of the rectangular cover (1) is provided with a bolt connection post (103) for the fasteners to be screwed in. The connecting base plate (2011) is provided with a U-shaped clearance groove (2011b) corresponding to the position of the bolt connection post (103).

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