CN115274340A - Novel automobile steering wheel switch structure with suspension keys - Google Patents

Abstract

The invention relates to a novel automobile steering wheel switch structure with a suspension button, which comprises a shell and a circuit board arranged in the shell, wherein the suspension button is arranged on the outer side of the shell and is hinged with the shell, the suspension button is fixedly connected with an ejector rod, the outer end part of the ejector rod extends to the lower part of the circuit board, a first switch part is correspondingly arranged on the lower surface of the circuit board, and the suspension button is pressed to rotate relative to a base so that the ejector rod can trigger the first switch part. According to the invention, the suspension key is additionally arranged on one side of the shell in the automobile steering wheel switch structure in the prior art, the suspension key adopts a hinged structure, the corresponding functional switch part is arranged on the back surface of the circuit board, the suspension key extends to the lower part of the circuit board through the ejector rod, the functional switch part is triggered by rotating, and the corresponding shell, PCB and other parts below the suspension key can be cancelled or partially cut off, so that the reliability of the switch function is obviously improved, and the cost reduction and the efficiency improvement are obvious.

Description

A new car steering wheel switch structure with floating buttons

technical field

The invention relates to a novel automobile steering wheel switch structure with floating buttons.

Background technique

As the most direct expression between the driver and the movement of the vehicle, the steering wheel switch plays a decisive role in the vehicle. Especially during the entire driving process, if the driver expresses a certain intention or makes a certain driving action, compared with the switches in the central control or other areas, it is currently more convenient to use the switches on the steering wheel to issue signal instructions. safe means of operation. The automobile steering wheel switch in the prior art is usually made of button, housing, small function switch, circuit board, bottom cover etc. The positions of the corresponding buttons distributed on the upper surface of the circuit board are distinguished, and the corresponding function small switches can be triggered by pressing the buttons. The steering wheel switch composed of the above components has the following disadvantages or inconveniences in the actual use process: a small function switch can only realize one function on the button, and a steering wheel switch often has multiple functions, so correspondingly it also needs more. This is a small functional switch. For a steering wheel switch that is not sold at a high price, the cost has been increased a lot invisibly.

Contents of the invention

The object of the present invention is to provide a novel automobile steering wheel switch structure with floating buttons in order to overcome the shortcomings and deficiencies of the prior art.

The technical scheme adopted by the present invention is as follows: a new type of automobile steering wheel switch structure with floating buttons, including a housing and a circuit board arranged in the housing, a floating button is arranged on the outside of the housing, and the floating button is connected to the The casing is hingedly connected, the floating button is fixedly connected with a push rod, and the outer end of the push rod extends below the circuit board, and the lower surface of the circuit board is correspondingly provided with a first switch, and the floating button is pressed to make it Rotating relative to the base can make the push rod trigger the first switch element.

The housing includes a base and an upper housing, the base and the upper housing are connected to form a cavity for accommodating a fixed circuit board, the base is provided with a first through hole for the first switch to pass through, and the ejector rod The outer end extends below the base to cooperate with the first switch piece passing through the first through hole.

The lower end of the base is fixed with a push rod shielding cover, and the side of the push rod shielding cover close to the floating button is provided with an opening for the push rod to pass through.

The floating button has an inner cavity, and the casing and/or the circuit board are fixedly connected with a limiting plate extending to the inner cavity of the floating button, and the limiting plate limits the rotation angle of the floating button.

The lower end of the limiting plate is provided with a hook portion, and the circuit board is provided with a hook groove, and the hook portion extends into the hook groove to form a snap fit.

The circuit board is provided with an extension arm with a protrusion on one side, the hook groove is arranged on the extension arm, and the limiting plate is fixed on the extension arm.

The floating button includes a button body and a flexible outer casing sheathed outside the button body, the button body has an internal cavity, the limiting plate extends to the inner cavity of the button body, and the upper surface of the button body is partially opened , the portion of the limiting plate corresponding to the opening is provided with a groove.

The push rod is integrally injection molded with the main body.

A protective cover made of elastic material is provided between the base and the upper shell, a circuit board installation groove is provided on the base, the circuit board is fixed in the circuit board installation groove, and the protective cover is located on the circuit board between the upper casing.

The upper shell is provided with at least one main body function switch operating part, and the upper surface of the circuit board is provided with at least one second switch part corresponding to the main body function switch operation part.

The beneficial effects of the present invention are as follows: the present invention adds a floating button on the side of the housing in the automobile steering wheel switch structure in the prior art. The floating button adopts a hinged structure, and the corresponding functional switch is arranged The rod extends to the bottom of the circuit board and turns to trigger the function switch, while the corresponding housing, PCB and other parts under the floating button can be canceled or partially removed, the reliability of the switch function is significantly improved, and the cost is reduced and the efficiency is significantly increased.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, obtaining other drawings based on these drawings still belongs to the scope of the present invention without any creative effort.

Fig. 1 is a structural representation of an embodiment of the present invention;

Fig. 2 is an exploded view of an embodiment of the present invention;

Fig. 3 is a partial sectional view of an embodiment of the present invention;

Fig. 4 is a schematic structural view of an upper casing in an embodiment of the present invention;

Fig. 5 is an exploded view of a floating button in an embodiment of the present invention;

Fig. 6 is a schematic structural view of a base in an embodiment of the present invention;

Fig. 7 is a structural schematic diagram of cooperation between a limit plate and a floating button in an embodiment of the present invention;

Fig. 8 is a schematic structural view of a circuit board in an embodiment of the present invention;

Fig. 9 is a schematic structural view of a limiting plate in an embodiment of the present invention;

Fig. 10 is a schematic structural diagram of a protective sheath in an embodiment of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are to distinguish two entities with the same name but different parameters or parameters that are not the same, see "first" and "second" It is only for the convenience of expression, and should not be construed as a limitation on the embodiments of the present invention, which will not be described one by one in the subsequent embodiments.

The terms of direction and position mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom" ", "side", etc., are only referring to the direction or position of the drawings. Therefore, the terms used in direction and position are used to explain and understand the present invention, but not to limit the protection scope of the present invention.

A novel automobile steering wheel switch structure with floating buttons, as shown in Figure 1, comprises a steering wheel switch main body, several main body function switches 1 are arranged on the steering wheel switch main body, and at least one of the suspension buttons on the outside of the steering wheel switch main body button 2. In the figure, there are two floating buttons 2, and the number of floating buttons 2 can be reduced to one or increased to three or more under the premise of reasonable layout. The floating button 2 in the figure is located at the lower side of the steering wheel switch main body, and can also be arranged on the upper side or other parts of the steering wheel switch main body under the premise of a reasonable layout.

As shown in Figure 2, the main body of the steering wheel switch includes a base 3, a circuit board 4, a protective cover 5, and an upper case 6, and the base 3 and the upper case 6 are connected to form a case for accommodating the circuit board 4, Several main body function switch operating parts 1 are installed on the upper casing 6, as shown in Figure 8, a plurality of second switch parts 401 are provided at corresponding positions on the upper surface of the circuit board 4, which can be triggered by operating the main body function switch operating part 1 The second switch part 401 at the corresponding position realizes the corresponding function output. This part can adopt the structure of the main body of the conventional steering wheel switch. The main body function switch operating part 1 can generally adopt the conventional structure for the steering wheel switch such as a key switch and a push switch. Commonly, the second switching element 401 may be a micro switch or other switching elements that can trigger the circuit to be energized.

As shown in Figure 3, the floating button 2 is located on one side of the casing formed by connecting the base 3 and the upper casing 6 and is connected to the casing through a hinged connection structure. 3 below the ejector rod 201, the position of the lower surface of the circuit board 4 corresponding to the outer end of the ejector rod 201 is provided with a first switch 402, and pressing down the floating button 2 can make the floating button 2 relative to the housing Turning clockwise, the outer end of the push rod 201 is lifted upwards, thereby triggering the first switch element 402 to realize the corresponding function output. Through the above configuration, parts such as the corresponding shell and PCB under the floating button can be canceled or partially removed, thereby reducing the cost.

As shown in Figure 4, the side wall of the upper casing 6 connected to the floating button 2 is provided with a hinged installation structure corresponding to the number of the floating button 2, and the hinged installation structure is provided with two opposite upper casing 6 sides. The first connecting plate 601 with a raised wall and a certain distance apart, and the hinge shaft 602 arranged on the outer side wall of the first connecting plate 601, as shown in Figure 5, the floating button 2 is provided with two separate The second connecting plate 202 located outside the two first connecting plates 601 , and the hinge hole 203 provided on the second connecting plate 202 and matched with the hinge shaft 602 . A guide wall 204 is provided on the inner side wall of the second connecting plate 202 to facilitate the assembly of the hinge shaft 602 into the hinge hole 203 .

As shown in FIG. 5 , the floating button 2 includes a button body and a flexible casing 205 sheathed outside the button body. The second connecting plate 202 and the push rod 201 are part of the button body and integrally injection molded.

As shown in Figures 3 and 6, the base 3 is provided with a first through hole 301 through which the first switch member 402 passes, and the outer end of the push rod 201 extends below the base 3 and passes through the first through hole. The first switch member 402 of the hole 301 fits. The lower end of the base 3 is fixed with a push rod shielding cover 302 , and the side of the push rod shielding cover 302 close to the floating button 2 is provided with an opening for the push rod 201 to pass through.

As shown in Figures 3 and 5, the button body has an internal cavity, and the circuit board is fixedly connected with a limiting plate 7 extending to the inner cavity of the floating button 2, as shown in Figure 7, the limiting plate 7 extends to the inner cavity of the button body, the upper surface of the button body is partially opened, and the position of the limiting plate 7 corresponding to the opening is provided with an arc groove, and the shape of the arc groove is similar to that of a finger. The limit plate 7 is used to limit the rotation angle of the floating button 2. As shown in FIG. When the limit plate 7 is touched, the suspension button 2 cannot be rotated further.

Further, as shown in FIG. 8, the circuit board 4 is provided with a protruding extension arm 403 on one side, and the extension arm 403 is provided with a hook groove 404. As shown in FIG. 9, the limiting plate 7. A hook portion 701 is provided at the lower end, and the circuit board 4 is provided with a hook groove 404, and the hook portion 701 extends into the hook groove 404 to form a snap fit. Further, the circuit board 4 is provided with a positioning hole 405 inside the hook groove 404 , and the lower end of the limiting plate 7 is provided with a positioning column 702 which is plugged and matched with the positioning hole 405 .

The base 3 and the upper casing 6 are respectively provided with a bracket 303 and an extension arm shield 603 corresponding to the extension arm 403, and the bracket 303 and the extension arm shield 603 are matched so that the extension arm 403 is located between the base 3 and the upper casing 6 .

A protective cover 5 made of elastic material is provided between the base 3 and the upper casing 6, and a circuit board installation groove 304 is provided on the base 3, and the circuit board 4 is fixed in the circuit board installation groove 304, The protective cover 5 is located between the circuit board 4 and the upper casing 6 . The protective cover 5 covers the circuit board 4 and forms a waterproof and dustproof protective effect on the circuit board 4 . As shown in Figure 10, the protective cover 5 is provided with a plurality of first through holes 501 through which the first switch member 402 passes and a plurality of second through holes 502 through which screws pass through, and the first switch member 402 passes through the second through hole 502. A perforation 501 and tightly fit with the first perforation 501, to prevent liquid or dust from entering through the gap between the first switch 402 and the first perforation 501, the base 3, the circuit board 4, the protective cover 5, and the upper case 6 pass through the screws The connection is tightened sequentially, and the upper surface of the protective cover 5 is provided with several fluid guide grooves to facilitate the discharge of liquid.

The above disclosures are only preferred embodiments of the present invention, and certainly cannot limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope of the present invention.

Claims (10)

1. A new type of automobile steering wheel switch structure with a floating button, comprising a housing and a circuit board (4) arranged in the housing, characterized in that a floating button (2) is arranged on the outside of the housing, and the floating button (2) Hingedly connected with the housing, the floating button (2) is fixedly connected with a push rod (201), the outer end of the push rod (201) extends below the circuit board (2), and the circuit board (2) A first switch (402) is correspondingly provided on the lower surface, and pressing the suspension button (2) to make it rotate relative to the base (1) enables the push rod (201) to trigger the first switch (402) . 2. The new car steering wheel switch structure with floating buttons according to claim 1, characterized in that: the housing includes a base (3) and an upper housing (6), and the base (3) and the upper housing (6) connected to form a cavity for accommodating and fixing the circuit board (4), and the base (3) is provided with a first through hole (301) for the first switch (402) to pass through, and the ejector rod (201) The outer end extends below the base (3) to cooperate with the first switch (402) passing through the first through hole (301). 3. The new car steering wheel switch structure with floating buttons according to claim 2, characterized in that: the lower end of the base (3) is fixed with a push rod shield (302), and the push rod shield (302) is close to One side of the floating button (2) is provided with an opening for the push rod (201) to pass through. 4. The new car steering wheel switch structure with floating buttons according to claim 2, characterized in that: the floating button (2) has an internal cavity, and the housing and/or the circuit board (4) are fixedly connected There is a limit plate (7) extending to the inner cavity of the suspension button (2), and the limit plate (7) forms a limit to the rotation angle of the suspension button (2). 5. The new car steering wheel switch structure with floating buttons according to claim 4, characterized in that: the lower end of the limit plate (7) is provided with a hook portion (701), and the circuit board (4) is provided with The hook groove (404), the hook portion (701) extends into the hook groove (404) to form a snap fit. 6. The new car steering wheel switch structure with floating buttons according to claim 5, characterized in that: the circuit board (4) is provided with a protruding extension arm (403) on one side, and the hook groove ( 404) is arranged on the extension arm (403), and the limiting plate (7) is fixed on the extension arm (403). 7. The new car steering wheel switch structure with floating buttons according to claim 5, characterized in that: the floating button (2) includes a button body and a flexible outer casing (205) sleeved outside the button body, the The button body has an internal cavity, the limiting plate (7) extends to the inner cavity of the button body, the upper surface of the button body is partially opened, and the position of the limiting plate (7) corresponding to the opening is provided with a groove. 8. The novel automobile steering wheel switch structure with floating buttons according to claim 7, characterized in that: the ejector rod (201) and the button main body are integrally injection molded. 9. The new car steering wheel switch structure with floating buttons according to claim 2, characterized in that: a protective cover (5) made of elastic material is provided between the base (3) and the upper casing (6) ), the base (3) is provided with a circuit board installation groove (304), the circuit board (4) is fixed in the circuit board installation groove (304), and the protective cover (5) is located on the circuit board (4) and the upper casing (6). 10. The new car steering wheel switch structure with floating buttons according to claim 9, characterized in that: the upper casing (6) is provided with at least one main function switch operating part (8), and the circuit board ( 4) At least one second switch part (401) is provided on the upper surface corresponding to the main body function switch operation part (8).

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