CN215578283U - Waterproof button and electronic equipment - Google Patents

Abstract

The embodiment of the application discloses waterproof button and electronic equipment, wherein waterproof button includes: a housing having an accommodating space; the key is movably arranged in the accommodating space and at least comprises a pressing position and a releasing position in the moving process; the elastic piece is positioned in the accommodating space and between the shell and the key, and when the key moves between the release position and the pressing position, the elastic piece is in interference fit with the key and the shell. This application embodiment is through setting up the elastic component between casing and button, elastic component and casing and the equal interference fit of button to reach waterproof effect.

Description

Waterproof button and electronic equipment

Technical Field

The application relates to the technical field of keys, in particular to a waterproof key and electronic equipment.

Background

With the rapid development of scientific technology, people have higher requirements on products used in production and life, for example, when electronic equipment such as a mobile phone is used, a certain waterproof performance is expected, and a gap is inevitably formed between a key in the electronic equipment and a shell of the electronic equipment due to the functionality of the key, so that the gap of the key becomes a key part for influencing whether the electronic equipment is waterproof.

The keys are generally adhered to the housing by using solid glue such as gum or glue, and as the number of times of use increases, the sealing performance of the glue becomes worse, which affects the waterproof performance between the keys and the housing, and may even affect the normal use of the keys.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a waterproof button and electronic equipment, and a waterproof effect can be achieved.

In a first aspect, an embodiment of the present application provides a waterproof key, including: a housing having an accommodating space; the key is movably arranged in the accommodating space and at least comprises a pressing position and a releasing position in the moving process; the elastic piece is positioned in the accommodating space and between the shell and the key, and when the key moves between the release position and the pressing position, the elastic piece is in interference fit with the key and the shell.

Based on the embodiment of the application: the button all sets up in the accommodation space of casing with the elastic component, the button is portable to be set up between pressing position and release position, when the button removes to pressing the position, button and function switch butt are so that function switch trigger control signal, when the button removes to release position, the button is contactless with function switch, so that function switch stops trigger control signal, when the button is pressing the position and release position and when pressing the position and remove between the release position, the elastic component atress that is located between casing and the button all with casing and button interference fit, the elastic component hugs closely in casing and button all the time, in order to reach waterproof purpose.

In some embodiments, the accommodating space includes a first accommodating groove and a second accommodating groove opened at the bottom of the first accommodating groove, and a part of the bottom of the first accommodating groove except for the notch of the second accommodating groove forms an edge area; the key comprises a pressing part and an abutting part, the pressing part is positioned in the first accommodating groove, the abutting part extends from the pressing part and sequentially penetrates through the elastic part and the second accommodating groove, and the abutting part is used for abutting against the function switch; the elastic piece is arranged around the abutting part in a surrounding mode and is in interference fit with the pressing part and the edge area.

Based on the above embodiment: the holding tank includes first holding tank and the second holding tank of intercommunication, the tank bottom of first holding tank is marginal area except that the part of second holding tank notch, the splenium is located first holding tank according to the button, butt portion extends and passes elastic component and second holding tank and function switch butt in proper order according to the splenium, the elastic component encircles and sets up around butt portion and with butt portion machine marginal area interference fit, when the button removes to pressing down the position, butt portion and function switch butt, so that function switch sends control signal, and simultaneously, the elastic component remains throughout and presses the splenium and marginal area's interference fit, in order to hug closely casing and button, reach waterproof purpose when realizing opening and close function switch.

In some of these embodiments, the resilient member comprises: the key contact part is in interference fit with the pressing part and is provided with a first opening through which the abutting part passes; the extending part extends from the key contact part to the edge area, and the extending direction of the extending part is intersected with the pressing direction of the key and is used for being pressed and deformed; a housing contact portion extending from the outer extension portion toward the edge region and interference fit with the edge region.

Based on the above embodiment: the elastic piece comprises a key contact part, an outer extension part and a shell contact part, the outer extension part extends to the shell contact part from the key contact part to the edge area, the key contact part is in interference fit with the pressing part, and the shell contact part is in interference fit with the edge area, so that the elastic piece is tightly attached to the shell and the key to realize a waterproof effect; the extending direction of the extending part is intersected with the pressing direction of the key, so that the extending part can be pressed to finish deformation in the key pressing process, and the situation that the elastic piece cannot deform to further influence the movement of the key is avoided.

In some embodiments, the key further comprises: at least one spacing portion, certainly press the extension of splenium and pass in proper order the elastic component and the second holding tank, spacing portion is kept away from the one end of pressing the splenium is provided with the pothook, the pothook with the casing joint is in order to prevent the button is followed the casing breaks away from.

Based on the above embodiment: the button still includes the spacing portion that is used for the restriction position at least, and spacing portion extends and passes elastic component and second holding tank from pressing the splenium, is provided with the pothook keeping away from one section of pressing the splenium, and the position that kick-backs after the button is pressed can be injectd to pothook and casing joint, and then prevents that the button from breaking away from the casing.

In some embodiments, a surface of the limiting portion facing a groove wall of the second receiving groove is provided with a limiting groove, the limiting groove extends along a pressing direction of the key, the groove wall of the second receiving groove is embedded in the limiting groove, and the limiting groove is used for limiting the key to move between the release position and the pressing position.

Based on the above embodiment: the spacing portion has seted up the spacing groove towards the surface of second holding tank cell wall, and the spacing groove extends along the direction of pressing of button to make the cell wall embedding spacing groove of second holding tank, can restrict the position after the button is pressed or kick-backs, and then make the button can move between release position and the position of pressing.

In some embodiments, the number of the limiting parts is two, and the two limiting parts are respectively located on two opposite sides of the contact part.

Based on the above embodiment: the quantity with spacing portion sets up to two, is located the both sides that the contact site carried on the back mutually respectively, can make the button in the in-process of pressing, presses the both ends of splenium to keep unanimous height, and then avoids button one of them end protruding, may influence the waterproof performance and the normal use of button.

In some embodiments, the extending direction of the extending portion and the pressing direction of the key form an included angle of 0-30 degrees.

Based on the above embodiment: the extending direction of the extending portion is crossed with the pressing direction of the key, and the included angle of the extending portion is between 0 degree and 30 degrees, so that the extending portion can be pressed and deformed in the key pressing process, effective resilience is provided for the elastic piece, and the elastic piece is prevented from being deformed and further affecting the movement of the key.

In some embodiments, the compression amount of the elastic member in the release position in the pressing direction of the key is greater than or equal to 0.1 mm.

Based on the above embodiment: in the direction of pressing down of button, the elastic component is greater than or equal to 0.1mm in the compressive capacity of release position, and the actual length when also that the elastic component is uncompressed is greater than or equal to 0.1mm than the distance between pressing the portion when being in the release position and the marginal zone, and when the button was in the release position, the elastic component can have slight deformation between pressing the portion and the marginal zone to make elastic component button and casing interference fit, realize waterproof effect.

In some embodiments, the elastic member has a thickness greater than or equal to 0.4 mm.

Based on the embodiment of the application: the thickness of the elastic piece is set to be at least 0.4mm, so that the situation that the elastic property of the elastic piece is reduced due to the fact that the elastic piece is too thin can be avoided, the waterproof effect of the key can be possibly influenced, and even the normal use of the key function can be avoided.

In a second aspect, an embodiment of the present application provides an electronic device, which includes a function switch and a waterproof button, where the button may abut against the function switch.

Based on the embodiment of the application: the button all sets up in the accommodation space of casing with the elastic component, the button is portable to be set up between pressing position and release position, when the button removes to pressing the position, button and function switch butt are so that function switch trigger control signal, when the button removes to release position, the button is contactless with function switch, so that function switch stops trigger control signal, when the button is pressing the position and release position and when pressing the position and remove between the release position, the elastic component atress that is located between casing and the button all with casing and button interference fit, the elastic component hugs closely in casing and button all the time, in order to reach waterproof purpose.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is an exploded view of a waterproof key structure of the present application;

FIG. 2 is a schematic view of a portion of the housing of the waterproof button of the present application;

FIG. 3 is a schematic cross-sectional view of a waterproof button of the present application in a released position;

FIG. 4 is a schematic cross-sectional view of a waterproof key of the present application in a depressed position;

FIG. 5 is a schematic structural diagram of a waterproof key of the present application;

FIG. 6 is a schematic diagram of a portion of an electronic device of the present application;

FIG. 7 is a schematic structural view of the elastic member of the waterproof button of the present application;

FIG. 8 is a schematic side view of the resilient member of the waterproof button of the present application;

fig. 9 is a schematic structural diagram of an electronic device in the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application, as detailed in the appended claims.

In the description of the present application, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art. Further, in the description of the present application, "a plurality" means two or more unless otherwise specified. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this patent belongs. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the patent. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Electronic devices such as smartphones, watches, and automobile data recorders often have keys with different functions. However, in the use of daily life, the electronic device is often required to be used in a scene contacting with liquid such as water, including but not limited to rainy days, washing in daily life, swimming for exercise, and the like, and the use of the key requires a pressing action, and further a movable gap is required between the key and the electronic device, which may cause liquid such as water to enter the electronic device from the gap, and further affect the normal use of the electronic device.

As shown in fig. 1, fig. 2 and fig. 3, some embodiments of the present application provide a waterproof button 10, where the waterproof button 10 includes a housing 110, a button 120 and an elastic member 130, specifically, the housing 110 has a receiving space 111 for receiving the button 120 and the elastic member 130; the key 120 can move in the accommodating space 111, and the moving process can include two positions, one of which is a release position a and the other of which is a pressing position b, the release position a is a position corresponding to the key 120 which is not pressed, and the pressing position b is a position where the key 120 is pressed and the pressing degree is maximum, and correspondingly, the key 120 can move between the release position a and the pressing position b; the elastic member 130 is disposed between the housing 110 and the key 120, has a certain elastic property, and is in interference fit with the housing 110 and the key 120, specifically, when the key 120 moves between the release position a and the press position b and between the release position a and the press position b, one end of the elastic member 130 close to the key 120 and one end of the elastic member 130 close to the housing 110 are in interference fit with the key 120 and the housing 110 all the time, that is, through the elastic property of the elastic member 130, the elastic member 130 is deformed to be tightly attached to the housing 110 and the key 120, thereby realizing the waterproof property of the waterproof key 10. The elastic member 130 may also have waterproof performance, specifically, the elastic member 130 may be made of silica gel, rubber, plastic, or the like, and in the pressing and releasing processes of the key 120, it may be effectively prevented that liquid such as water enters the inside of the housing 110 through the elastic member 130 itself, so that the waterproof performance of the elastic member 130 itself is improved, and the waterproof performance of the waterproof key 10 is improved.

It can be understood that the location of the key 120 is communicated with the outside of the housing 110, which facilitates the user to operate the button, that is, the accommodating space 111 is communicated with the outside of the housing 110, further, as shown in fig. 2, in some embodiments, the accommodating space 111 includes a first accommodating groove 111A and a second accommodating groove 111B, the first accommodating groove 111A is communicated with the outside of the housing 110, and the second accommodating groove 111B is communicated with the first accommodating groove 111A, it should be noted that the cross section of the second accommodating groove 111B at the first accommodating groove 111A is smaller than that at the bottom of the first accommodating groove 111A, so that the portion of the bottom of the first accommodating groove 111A except for the notch of the second accommodating groove 111B forms the edge area 112; as shown in fig. 5 and 6, the key 120 may include a pressing portion 121 and an abutting portion 122, the pressing portion 121 is located in the first receiving groove 111A, the abutting portion 122 extends from the pressing portion 121, and can sequentially pass through the elastic member 130 and the second receiving groove 111B, and the other end of the abutting portion 122 can contact the function switch 20, specifically, when the key 120 moves to the pressing position B, the key 120 abuts against the function switch 20 to trigger the control signal of the function switch 20, and when the key 120 moves to the releasing position a, the key 120 does not contact with the function switch 20 to stop triggering the control signal of the function switch 20; as shown in fig. 3, the elastic element 130 is located between the pressing portion 121 and the edge region 112, and is disposed around the abutting portion 122, and is in interference fit with the pressing portion 121 and the edge region 112. It should be noted that the pressing portion 121 and the abutting portion 122 can be integrally formed, so as to enhance the integrity of the key 120 and prevent the pressing portion 121 and the abutting portion 122 from being separated during the movement of the key 120.

As shown in fig. 3 and 4, the first receiving groove 111A where the pressing portion 121 is located communicates with the space outside the housing 110 to facilitate the user to operate, for example, the pressing portion 121 is operated at the release position a, at this time, the key 120 does not contact with the function switch 20, and the control signal cannot be triggered, the pressing portion 121 is pressed and drives the abutting portion 122 to move in the receiving space 111, one end of the elastic member 130 abuts against the edge region 112 of the housing 110 and cannot move, the other end of the elastic member is abutted against the pressing portion 121 and is pressed, the elastic member 130 deforms, and the pressing portion 121 can continue to move until one end of the abutting portion 122, which is far away from the pressing portion 121, contacts the function switch 20 located in the housing 110, that is, the position b is pressed, and the key 120 abuts against the function switch 20 to trigger the control signal by the function switch 20. When the key 120 is at the release position a and the press position b and between the release position a and the press position b, the elastic member 130 is always in interference fit with the housing 110 and the key 120, so that the elastic member 130 is tightly attached to the housing 110 and the key 120, and thus, liquid such as water can be effectively prevented from entering the housing 110 during the movement of the key 120, and the waterproof performance of the waterproof key 10 is improved.

Further, in some embodiments, as shown in fig. 3, in order to ensure the fitting relationship of the elastic member 130 between the housing 110 and the key 120, during the pressing process of the key 120, the length of the undeformed elastic member 130 may be greater than the distance between the pressing portion 121 and the edge region 112, that is, the compression amount of the key 120 at the release position a in the pressing direction Z of the key 120, and the length of the undeformed elastic member 130 is the same as the distance difference between the pressing portion 121 and the edge region 112. Specifically, the length of the elastic element 130 and the difference L between the pressing portion 121 and the edge region 112 may be greater than 0.1mm, or equal to 0.1mm, and correspondingly, the elastic element 130 has a slight deformation between the pressing portion 121 and the edge region 112, so that the elastic element 130 can be tightly attached to the key 120 and the housing 110, and further, the production cost can be reduced on the premise of realizing the waterproof effect.

In some embodiments, as shown in fig. 3 and 7, the elastic member 130 may include a key contact portion 131, an outer extension portion 132 and a housing contact portion 133, specifically, the key contact portion 131 is close to the pressing portion 121, the housing contact portion 133 is close to the edge region 112, the outer extension portion 132 is located between the key contact portion 131 and the housing contact portion 133, the key contact portion 131 is in interference fit with the key 120, and the housing contact portion 133 is in interference fit with the housing 110. The extension portion 132 may extend from the key contact portion 131 to the edge region 112 and extend to the housing contact portion 133, i.e., the elastic member 130 is integrally formed. It should be noted that the extending direction of the extending portion 132 intersects the pressing direction Z of the key 120, so that the extending portion 132 can be pressed to complete deformation during the pressing process of the key 120, and the elastic member 130 can not be deformed to affect the movement of the key 120. It can be understood that, in order to facilitate the movement of the key 120, the key contact portion 131 is opened with a first opening through which the abutting portion 122 moves.

Further, in some embodiments, as shown in fig. 8, an angle S is formed between the extending direction of the extending portion 132 and the pressing direction Z of the key 120, and the size of the angle S may affect the degree of deformability of the extending portion 132. Specifically, the included angle S may be between 0 ° and 60 °, so that the two ends of the extension portion 132 are deformed toward the inner side of the elastic member 130 during the compression deformation of the elastic member 130. More specifically, the included angle S may be between 0 ° and 30 °, so that the extension portion 132 may have good anti-elastic performance during the compression deformation of the elastic member 130, and avoid the elastic member 130 from being unable to smoothly recover after the compression deformation.

In some embodiments, the shape of the elastic member 130 may also be arbitrary. Specifically, the elastic member 130 may be solid, so that in the moving process of the key 120, liquid such as water cannot enter the inside of the housing 110 through the elastic member 130, and the waterproof performance of the elastic member 130 can be improved; the elastic member 130 may also be in the shape of the housing 110, and the elastic member 130 in the shape of the housing 110 may reduce the material cost of the elastic member 130 and the production cost to a certain extent, on the other hand, the size difference of the elastic member 130 in the shape of the housing 110 before and after being pressed and deformed is large, so that a larger moving space may be provided for the key 120, and the use by a user is facilitated. Further, the thickness of the elastic member 130 may also be different. The thickness of the elastic member 130 may be greater than 0.4mm or equal to 0.4mm, so that the use cost of raw materials can be reduced as much as possible while the elastic member 130 has certain elastic performance.

In some embodiments, as shown in fig. 3 and 5, the key 120 may further include a limiting portion 123, the limiting portion 123 is located on the same side of the abutting portion 122, the limiting portion 123 sequentially passes through the elastic element 130 and the second receiving groove 111B and then is clamped with the housing 110, specifically, a hook 123A is disposed on the limiting portion 123 at an end far away from the pressing portion 121, and the hook 123A is clamped with the housing 110, so as to prevent the key 120 from being separated from the housing 110 when the key is pressed and rebounded. It should be noted that the position-limiting portion 123, the pressing portion 121 and the abutting portion 122 can be integrally formed, so as to improve the integrity of the key 120 and avoid the phenomenon of partial falling off during the movement of the key 120.

Further, in some embodiments, the surface of the position-limiting portion 123 is formed with a position-limiting groove 123B. Specifically, the limiting groove 123B is disposed on a surface of the limiting portion 123 facing the second receiving groove 111B, and the limiting groove 123B extends along the pressing direction Z of the key 120. It should be noted that, in the pressing direction Z of the key 120, the length of the limiting groove 123B is greater than the length of the groove wall of the second receiving groove 111B, so that the groove wall of the second receiving groove 111B is embedded into the limiting groove 123B to limit the movement of the key 120. It can be understood that, the limiting portion 123 of the groove wall of the second receiving groove 111B is engaged with the limiting groove 123B, so that the movement of the key 120 is limited, on one hand, the key 120 is prevented from being separated from the predetermined position in the moving process, even if the key 120 moves between the release position a and the pressing position B, on the other hand, the limiting portion 123 is prevented from being separated from the housing 110 in the pressing and rebounding processes of the key 120, and further, the key 120 is prevented from being separated from the housing 110, and the stability of the key 120 in the moving process is improved.

Further, in some embodiments, as shown in fig. 5, the number of the position-limiting portions 123 may be plural, and for example, the number of the position-limiting portions 123 may be two. Specifically, in the pressing process of the key 120, the two limiting portions 123 may be disposed at two sides of the abutting portion 122, that is, the two limiting portions 123 may be disposed on the pressing portion 121 back to back, so that two ends of the pressing portion 121 may maintain a consistent height, and any one end of the key 120 is prevented from protruding, which may affect the waterproof performance of the key 120, and even when the protrusion of the key 120 is serious, the normal use of the key 120 may be affected.

Some embodiments of the present application provide an electronic device 30, as shown in fig. 6 and fig. 9, the electronic device 30 includes a function switch 20 and the waterproof button 10 in the above embodiments, the button 120 is connected to the function switch 20, specifically, when the button 120 moves to the pressing position b, the button 120 abuts against the function switch 20 to trigger the control signal by the function switch 20, and when the button 120 moves to the releasing position a, the button 120 does not contact with the function switch 20 to stop triggering the control signal by the function switch 20. The electronic device 30 may be, but is not limited to, a smart phone, a smart watch, an e-book reader, a vehicle-mounted camera device, a monitoring device, a medical device (such as an endoscope), a tablet computer, a biometric device (such as a fingerprint recognition device or a pupil recognition device), a PDA (Personal Digital Assistant), an unmanned aerial vehicle, and the like. By employing the above-described key 120, the key 120 can move within the housing 110 of the accommodating space 111, i.e., between the release position a and the pressed position b; elastic component 130, certain elasticity performance has, when button 120 at release position a with press position b and at release position a with press between the position b when moving, elastic component 130 is close to the one end of button 120, elastic component 130 be close to casing 110 one end correspond with button 120, casing 110 takes place interference fit, hug closely casing 110 and button 120 all the time, realize waterproof performance of waterproof button 10, be favorable to promoting the result of use of electronic equipment 30 under the scene that possesses liquid such as water, promote user's use experience.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present solution, and the description thereof is more specific and detailed, but not construed as limiting the scope of the patent. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present solution, which falls within the protection scope of the present solution. Therefore, the protection scope of this patent shall be subject to the appended claims.

Claims (10)

1. A waterproof key, comprising:

a housing having an accommodating space;

the key is movably arranged in the accommodating space and at least comprises a pressing position and a releasing position in the moving process;

the elastic piece is positioned in the accommodating space and between the shell and the key, and when the key moves between the release position and the pressing position, the elastic piece is in interference fit with the key and the shell.

2. The waterproof key according to claim 1, wherein said accommodating space includes a first accommodating groove and a second accommodating groove formed at a bottom of the first accommodating groove, and a portion of the bottom of the first accommodating groove other than the notch of the second accommodating groove forms an edge region;

the key comprises a pressing part and an abutting part, the pressing part is positioned in the first accommodating groove, the abutting part extends from the pressing part and sequentially penetrates through the elastic part and the second accommodating groove, and the abutting part is used for abutting against the function switch;

the elastic piece is arranged around the abutting part in a surrounding mode and is in interference fit with the pressing part and the edge area.

3. The waterproof key of claim 2, wherein said elastic member comprises:

the key contact part is in interference fit with the pressing part and is provided with a first opening through which the abutting part passes;

the extending part extends from the key contact part to the edge area, and the extending direction of the extending part is intersected with the pressing direction of the key and is used for being pressed and deformed;

a housing contact portion extending from the outer extension portion toward the edge region and interference fit with the edge region.

4. The waterproof key of claim 3, wherein said key further comprises:

at least one spacing portion, certainly press the extension of splenium and pass in proper order the elastic component and the second holding tank, spacing portion is kept away from the one end of pressing the splenium is provided with the pothook, the pothook with the casing joint is in order to prevent the button is followed the casing breaks away from.

5. The waterproof key according to claim 4, wherein a limiting groove is formed on a surface of the limiting portion facing a groove wall of the second receiving groove, the limiting groove extends in the pressing direction of the key, the groove wall of the second receiving groove is embedded in the limiting groove, and the limiting groove is used for limiting the key to move between the release position and the pressing position.

6. The waterproof key according to claim 5, wherein the number of the limiting parts is two, and the two limiting parts are respectively located on two opposite sides of the contact part.

7. The waterproof key of claim 3, wherein an angle between the extending direction of the extension portion and the pressing direction of the key is 0-30 °.

8. The waterproof key of claim 6, wherein the compression of said elastic member in said release position in the direction of depression of said key is greater than or equal to 0.1 mm.

9. The waterproof key of claim 6, wherein said elastic member has a thickness greater than or equal to 0.4 mm.

10. An electronic device comprising a function switch and a waterproof button according to any one of claims 1 to 9, the button being abuttable to the function switch.

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