Key assembly and electronic device

Abstract

This application discloses a button assembly and an electronic device, belonging to the field of electronic technology. The button assembly includes a carrier, a button, a first seal, and a second seal. The carrier has intersecting outer surfaces and a bearing surface. The outer surface has a first mounting groove with an opening facing outwards, and the bearing surface has a second mounting groove with an opening facing upwards. The bottom of the first mounting groove has a guide hole communicating with the second mounting groove. The button includes a keycap and a pressing member, both at least partially located within the first mounting groove. The pressing member is connected to the inner side of the keycap, and a portion of the pressing member extends into the second mounting groove through the guide hole. The first seal is fitted onto the keycap and abuts against the groove wall of the first mounting groove, and the second seal is fitted onto the pressing member and abuts against the wall of the guide hole. Using the technical solution of this application, the waterproof performance of the button can be improved.

Description

Technical Field

[0001] This application relates to the field of electronic technology, and in particular to a button assembly and an electronic device. Background Technology

[0002] In daily life, various electronic devices used by users generally have buttons for adjusting volume or controlling power. When a user presses a button inside the electronic device, the end of the button triggers the corresponding button switch to perform the corresponding function.

[0003] Currently, the waterproof performance of buttons in related technologies is poor, which can easily affect the normal use of button functions. Utility Model Content

[0004] In view of this, embodiments of this application provide a button assembly and an electronic device that can improve the waterproof performance of the button assembly.

[0005] On one hand, embodiments of this application provide a button assembly, which includes a carrier, a button, a first seal, and a second seal;

[0006] The support member has intersecting outer surfaces and a bearing surface. The outer surface has a first mounting groove with an opening facing outward, and the bearing surface has a second mounting groove with an opening facing upward. The bottom of the first mounting groove is provided with a guide hole communicating with the second mounting groove.

[0007] The button includes a keycap and a pressing member located at least partially within the first mounting slot. The pressing member is connected to the inner side of the keycap, and a portion of the pressing member extends into the second mounting slot through the guide hole.

[0008] The first sealing element is sleeved on the keycap and abuts against the groove wall of the first mounting groove, and the second sealing element is sleeved on the pressing element and abuts against the hole wall of the guide hole.

[0009] Using the key assembly provided in this application, after a user presses the keycap, the keycap drives the pressing member connected to the keycap to move in the pressing direction, so that the part of the pressing member located in the guide hole can extend into the second mounting groove of the carrier to realize the key function. Since the keycap is fitted with a first sealing element and the pressing member is fitted with a second sealing element, external impurities are prevented from entering the carrier from between the keycap and the wall of the first mounting groove, and also from entering the carrier from the gap between the pressing member and the guide hole. The double-layer sealing element improves the sealing between the key and the carrier, thereby improving the waterproof performance of the key assembly and ensuring the normal use of the key function.

[0010] In some possible implementations, the peripheral sidewall of the keycap has an annular groove with an opening facing the wall of the first mounting groove, the width of the annular groove gradually increasing in the direction from the opening of the annular groove to the bottom of the annular groove;

[0011] At least a portion of the first seal is located within the annular groove.

[0012] By adopting the technical solution of this application, since the width of the annular groove gradually increases from the outside to the inside, a barbed annular groove can be formed, thereby increasing the bonding force between the annular groove and the first seal and preventing the first seal from detaching from the annular groove.

[0013] In some possible implementations, the first seal includes a first portion and a second portion connected together;

[0014] The width of the first portion gradually increases in the direction from the groove wall of the first mounting groove to the peripheral side wall of the keycap;

[0015] The second part is located on the side of the first part facing the wall of the first mounting groove;

[0016] The first part is inserted into the annular groove, and the second part extends out from the opening of the annular groove and abuts against the groove wall of the first mounting groove.

[0017] By adopting the technical solution of this application, the size change of the first seal element is matched with that of the annular groove, thereby increasing the contact area between the first seal element and the groove wall of the annular groove, ensuring that the first seal element and the keycap are more firmly grounded, and improving the stability of the sealing performance of the first seal element.

[0018] In some possible implementations, the pressing element includes a body portion and a guide portion;

[0019] The two sides of the main body are respectively connected to the inner side of the keycap and the guide portion;

[0020] The guide portion is located inside the guide hole, the first sealing member is sleeved on the guide portion, and the first sealing member and the guide portion are integrally formed.

[0021] By adopting the technical solution of this application, since the first sealing element and the guide part are integrally formed, the situation of missing the first sealing element can be avoided when assembling the button assembly. This can improve assembly efficiency, ensure good sealing performance of the button assembly, and improve the yield of the button assembly.

[0022] In some possible implementations, at least a portion of the bottom of the first mounting groove extends away from the keycap recess and toward and / or away from the bearing surface to form a recessed portion, the recessed portion having a limiting wall opposite to the opening of the first mounting groove.

[0023] The pressing member further includes at least one limiting part connected to the main body. The limiting part has an abutting part connected to the side facing the bearing surface and / or away from the bearing surface. The limiting part extends into the corresponding recessed part, and the side of the abutting part facing the first mounting groove abuts against the limiting wall when the pressing member is not pressed.

[0024] By employing the technical solution of this application, the abutting part abuts against the limiting wall, which can prevent the button from detaching from the carrier in the pressing direction, thereby improving the stability of the assembly of the button and the carrier.

[0025] In some possible implementations, the side of the main body that is away from the first mounting groove opening has a first snap-fit ​​structure;

[0026] The limiting part has a second snap-fit ​​structure on the side facing the first mounting groove, and the first snap-fit ​​structure and the second snap-fit ​​structure snap-fit ​​together.

[0027] By adopting the technical solution of this application, the connection between the main body and the limiting part can be improved through the snap-fit ​​cooperation of the first snap-fit ​​structure and the second snap-fit ​​structure, and the limiting part can be prevented from detaching from the main body.

[0028] In some possible implementations, the limiting part and the body part are integrally formed, and the pressing member has two limiting parts, which are respectively located on both sides of the guide part.

[0029] By adopting the technical solution of the embodiments of this application, it is possible to ensure the force balance on both sides of the guide portion, and also to improve the processing efficiency of the limiting portion and the main body portion, as well as the assembly efficiency of the button assembly.

[0030] In some possible implementations, the button assembly further includes at least one elastic element located within the first mounting groove, one side of which abuts against the body portion and / or the limiting portion, and the other side abuts against the bottom of the first mounting groove.

[0031] Using the technical solution of this application, when the user releases the pressure on the button, the elastic force of the elastic element on the main body can cause the button to move back to its initial position in a direction opposite to the pressing direction. In other words, the elastic element can automatically return the button to its original position, improving the flexibility of button use.

[0032] In some possible implementations, the button assembly further includes a button switch located within the second mounting slot, the button switch having a contact portion opposite to the guide hole.

[0033] By adopting the technical solution of this application, since the contact part is opposite to the guide hole, when the pressing part moves in the pressing direction, it can be ensured that the pressing part can contact the contact part, thereby triggering the corresponding function of the button and improving the effectiveness of the user pressing the button.

[0034] On the other hand, this application also provides an electronic device, which includes a button assembly as described in any one of the above embodiments of this application.

[0035] The electronic device provided in this application embodiment is equipped with the above-mentioned button assembly. Since the button assembly has high waterproof performance, the electronic device equipped with the button assembly also has high waterproof performance. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is an exploded view of a button assembly provided in an embodiment of this application;

[0038] Figure 2 This is a schematic diagram of the structure of a button assembly provided in an embodiment of this application;

[0039] Figure 3 This is a cross-sectional schematic diagram of a button assembly at the guide portion position provided in an embodiment of this application;

[0040] Figure 4 This is a schematic diagram of the structure of the first sealing element in a button assembly provided in an embodiment of this application;

[0041] Figure 5 yes Figure 4 A cross-sectional view of the first seal of a button assembly at section AA is provided in an embodiment of this application.

[0042] Figure 6 This is a cross-sectional schematic diagram of a button assembly at the limiting portion provided in an embodiment of this application;

[0043] Figure 7 This is a cross-sectional schematic diagram of a button assembly provided in an embodiment of this application;

[0044] Figure 8 This is an exploded view of a pressing element in a button assembly provided in an embodiment of this application.

[0045] The labels in the attached diagram are as follows:

[0046] 100, Supporting component; 110, Outer surface; 120, Supporting surface; 111, First mounting groove; 112, Guide hole; 113, Recess; 1131, Limiting wall; 121, Second mounting groove;

[0047] 200. Button; 210. Keycap; 220. Pressing element; 211. Ring groove; 221. Body part; 222. Guide part; 223. Limiting part; 224. Abutting part; 2211. First snap-fit ​​structure; 2231. Second snap-fit ​​structure;

[0048] 300. First seal; 310. First part; 320. Second part;

[0049] 400. Second seal;

[0050] 500. Elastic components;

[0051] 600. Push-button switch; 610. Contact part;

[0052] 700. Adhesive components.

[0053] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0054] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0055] Unless otherwise defined, all technical terms used in the embodiments of this application have the same meaning as commonly understood by those skilled in the art.

[0056] To make the technical solutions and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0057] Combination Figure 1 and Figure 2 As shown in the figure, this application embodiment provides a button assembly, which includes a carrier 100, a button 200, a first sealing member 300, and a second sealing member 400.

[0058] The support member 100 has intersecting outer surfaces 110 and bearing surfaces 120. The outer surface 110 has a first mounting groove 111 with an opening facing outward, and the bearing surface 120 has a second mounting groove 121 with an opening facing upward. The bottom of the first mounting groove 111 is provided with a guide hole 112 communicating with the second mounting groove 121. It should be noted that the support member 100 in this embodiment can be, for example, a mid-frame structure of an electronic device.

[0059] The button 200 includes a keycap 210 and a pressing member 220, both at least partially located within a first mounting groove 111. The pressing member 220 is connected to the inner side of the keycap 210, and a portion of the pressing member 220 extends into a second mounting groove 121 via a guide hole 112. A first sealing member 300 is fitted onto the keycap 210 and abuts against the groove wall of the first mounting groove 111, while a second sealing member 400 is fitted onto the pressing member 220 and abuts against the hole wall of the guide hole 112. It should be noted that the first sealing member 300 can be made of TPU (Thermoplastic Polyurethane), and the second sealing member 400 can be made of plastic, silicone, or other materials.

[0060] Using the key assembly provided in this application, after the user presses the keycap 210, the keycap 210 can drive the pressing member 220 connected to the keycap 210 to move in the pressing direction, so that the part of the pressing member 220 located in the guide hole 112 can extend into the second mounting groove 121 of the carrier 100 to realize the function of the key 200. Since the keycap 210 is fitted with a first sealing member 300 and the pressing member 220 is fitted with a second sealing member 400, it can prevent external impurities from entering the carrier 100 from the groove wall between the keycap 210 and the first mounting groove 111, and it can also prevent external impurities from entering the carrier 100 from the gap between the pressing member 220 and the guide hole 112. The double-layer sealing member can improve the sealing between the key 200 and the carrier 100, thereby improving the waterproof performance of the key assembly and ensuring the normal use of the key 200.

[0061] The following is in conjunction with the appendix Figures 1 to 8 The structure and function of each component of the button assembly provided in the embodiments of this application will be described in more detail.

[0062] like Figure 3As shown, in some possible embodiments, the peripheral sidewall of the keycap 210 has an annular groove 211 with an opening facing the wall of the first mounting groove 111. The width of the annular groove 211 gradually increases in the direction from the opening of the annular groove 211 towards the bottom of the groove. At least a portion of the first seal 300 is located within the annular groove 211. It should be noted that, since the width of the annular groove 211 gradually increases from the outside to the inside, a barbed annular groove 211 can be formed, thereby increasing the bonding force between the annular groove 211 and the first seal 300 and preventing the first seal 300 from detaching from the annular groove 211.

[0063] Combination Figure 4 and Figure 5 As shown, in some possible embodiments, the first seal 300 includes a first portion 310 and a second portion 320 connected together. The width of the first portion 310 gradually increases in the direction from the groove wall of the first mounting groove 111 towards the peripheral sidewall of the keycap 210. The second portion 320 is located on the side of the first portion 310 facing the groove wall of the first mounting groove 111. The first portion 310 is engaged within the annular groove 211, and the second portion 320 extends from the opening of the annular groove 211 and abuts against the groove wall of the first mounting groove 111. This arrangement allows the dimensions of the first seal 300 to match those of the annular groove 211, thereby increasing the contact area between the first seal 300 and the groove wall of the annular groove 211, ensuring a tighter fit between the first seal 300 and the keycap 210, and improving the stability of the sealing performance of the first seal 300.

[0064] Combination Figure 1 and Figure 3 As shown, in some possible embodiments, the pressing member 220 includes a body portion 221 and a guide portion 222. It should be noted that the guide portion 222 and the body portion 221 can be an integrally molded structure. The two sides of the body portion 221 are respectively connected to the inner side of the keycap 210 and the guide portion 222. The guide portion 222 is located within the guide hole 112, and the first sealing member 300 is sleeved on the guide portion 222, with the first sealing member 300 and the guide portion 222 being an integrally molded structure. It should be noted that because the first sealing member 300 and the guide portion 222 are an integrally molded structure, the omission of the first sealing member 300 can be avoided when assembling the button assembly, thereby improving assembly efficiency and ensuring good sealing performance of the button assembly, thus increasing the yield rate of the button assembly. The second sealing member 400 and the guide portion 222 can be integrally processed using a two-color injection molding process.

[0065] Combination Figure 1 , Figure 6 and Figure 7As shown, in some possible embodiments, at least a portion of the bottom of the first mounting groove 111 is recessed away from the keycap 210 and extends toward and / or away from the bearing surface 120, forming a recess 113. The recess 113 has a limiting wall 1131 opposite to the opening of the first mounting groove 111. The pressing member 220 also includes at least one limiting part 223 connected to the body part 221. An abutment part 224 is connected to the side of the limiting part 223 facing the bearing surface 120 and / or away from the bearing surface 120. The limiting part 223 extends into the corresponding recess 113, and the side of the abutment part 224 facing the opening of the first mounting groove 111 abuts against the limiting wall 1131 when the pressing member 220 is not pressed. It should be understood that by abutting the abutting portion 224 against the limiting wall 1131, the button 200 can be prevented from detaching from the carrier 100 in the pressing direction, thereby improving the stability of the assembly of the button 200 and the carrier 100. Simultaneously, when the user presses the button 200, the surface of the limiting portion 223 facing away from the opening of the first mounting groove 111 can abut against the surface of the recessed portion 113 facing the opening of the first mounting groove 111. This allows the recessed portion 113 to limit the movement of the limiting portion 223 in the pressing direction, preventing the button 200 from being over-pressed. Furthermore, since the limiting portion 223 is located within the first mounting groove 111 and does not enter the second mounting groove 121, external impurities can be prevented from flowing into the second mounting groove 121 through the area around the limiting portion 223, further improving the waterproof performance of the button assembly.

[0066] like Figure 8 As shown, in some possible embodiments, the main body 221 has a first engaging structure 2211 on the side facing away from the opening of the first mounting groove 111. The limiting part 223 has a second engaging structure 2231 on the side facing the opening of the first mounting groove 111, and the first engaging structure 2211 and the second engaging structure 2231 engage with each other. It should be noted that the engagement of the first engaging structure 2211 and the second engaging structure 2231 can improve the stability of the connection between the main body 221 and the limiting part 223 and prevent the limiting part 223 from detaching from the main body 221. For example, one of the first engaging structure 2211 and the second engaging structure 2231 may be a protrusion and the other may be a groove, and the shapes of the protrusion and the groove may match each other to achieve engagement.

[0067] Combination Figure 1 and Figure 7As shown, in some possible embodiments, the limiting part 223 and the body part 221 are integrally formed. The pressing member 220 has two limiting parts 223, which are respectively located on both sides of the guide part 222. This arrangement ensures that the force on both sides of the guide part 222 is balanced, and also improves the processing efficiency of the limiting part 223 and the body part 221, as well as the assembly efficiency of the button assembly. In some embodiments, the two limiting parts 223 are symmetrically arranged about the guide part 222, thereby further ensuring the force balance at both ends of the button 200 and improving the user's pressing feel of the button 200. It should be noted that the limiting part 223 can be made of TPU material, for example, and the body part 221 and the limiting part 223 can be integrally formed by a two-color injection molding process.

[0068] Combination Figure 1 and Figure 7 As shown, in some possible embodiments, the button assembly further includes at least one elastic element 500, which is located within the first mounting groove 111. One side of the elastic element 500 abuts against the body portion 221 and / or the limiting portion 223, and the other side abuts against the bottom of the first mounting groove 111. It should be noted that when the user releases the pressing force on the button 200, the elastic force of the elastic element 500 against the body portion 221 allows the button 200 to move back to its initial position in a direction opposite to the pressing direction. In other words, the elastic element 500 allows the button 200 to automatically return to its original position, improving the flexibility of the button 200. In some embodiments, the elastic element 500 and the body portion 221 and / or the limiting portion 223 can be bonded together by an adhesive 700 to improve the stability of the assembly of the elastic element 500 and the pressing member 220. The elastic element 500 in this embodiment can be, for example, foam. In some embodiments, the button assembly includes two elastic members 500, which are located on both sides of the guide portion 222 and are symmetrically arranged about the guide portion 222. This ensures that the two ends of the button 200 are subjected to balanced forces, improving the user's pressing feel.

[0069] Combination Figure 1 and Figure 7 As shown, in some possible embodiments, the button assembly further includes a button switch 600 located within the second mounting groove 121. The button switch 600 has a contact portion 610, which faces the guide hole 112. Since the contact portion 610 faces the guide hole 112, when the pressing member 220 moves in the pressing direction, it can be ensured that the pressing member 220 can contact the contact portion 610, thereby triggering the corresponding function of the button 200 and improving the effectiveness of the user pressing the button 200. It should be understood that when the button 200 is pressed, the guide portion 222 of the pressing member 220 extends into the second mounting groove 121 to trigger the contact portion 610, thereby enabling the button switch 600 to perform functions such as adjusting volume or controlling the power switch.

[0070] On the other hand, this application also provides an electronic device, which includes a button assembly as described in any of the above embodiments. It should be noted that the button assembly installed in the electronic device provided in this application has the same composition and function as any of the button assemblies in the above embodiments, and therefore will not be described again here. The electronic device can be, for example, a mobile phone, tablet, smart wearable device, shaver, etc. Because the button assembly has high waterproof performance, the electronic device with this button assembly also has high waterproof performance, which is beneficial for the electronic device to meet the requirements of high-level waterproof performance.

[0071] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0072] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.

[0073] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A button assembly, characterized in that, The button assembly includes a carrier (100), a button (200), a first seal (300), and a second seal (400); The support member (100) has intersecting outer side surface (110) and support surface (120). The outer side surface (110) has a first mounting groove (111) with an opening facing outward. The support surface (120) has a second mounting groove (121) with an opening facing upward. The bottom of the first mounting groove (111) is provided with a guide hole (112) communicating with the second mounting groove (121). The button (200) includes a keycap (210) and a pressing member (220) located at least partially in the first mounting groove (111), the pressing member (220) being connected to the inner side of the keycap (210), and a portion of the pressing member (220) extending into the second mounting groove (121) through the guide hole (112); The first sealing element (300) is sleeved on the keycap (210) and abuts against the groove wall of the first mounting groove (111), and the second sealing element (400) is sleeved on the pressing element (220) and abuts against the hole wall of the guide hole (112).

2. The button assembly according to claim 1, characterized in that, The keycap (210) has a peripheral sidewall with an annular groove (211) opening toward the wall of the first mounting groove (111), and the width of the annular groove (211) gradually increases in the direction from the opening of the annular groove (211) toward the bottom of the annular groove (211). At least a portion of the first seal (300) is located within the annular groove (211).

3. The button assembly according to claim 2, characterized in that, The first seal (300) includes a first part (310) and a second part (320) connected together; The width of the first portion (310) gradually increases in the direction from the groove wall of the first mounting groove (111) to the peripheral sidewall of the keycap (210); The second part (320) is located on the side of the first part (310) facing the groove wall of the first mounting groove (111); The first part (310) is inserted into the annular groove (211), and the second part (320) extends out from the opening of the annular groove (211) and abuts against the groove wall of the first mounting groove (111).

4. The button assembly according to claim 1, characterized in that, The pressing member (220) includes a body part (221) and a guide part (222); The two sides of the main body (221) are respectively connected to the inner side of the keycap (210) and the guide part (222); The guide portion (222) is located inside the guide hole (112), the first sealing member (300) is sleeved on the guide portion (222), and the first sealing member (300) and the guide portion (222) are integrally formed.

5. The button assembly according to claim 4, characterized in that, At least a portion of the bottom of the first mounting groove (111) is recessed away from the keycap (210) and extends toward and / or away from the bearing surface (120) to form a recess (113), the recess (113) having a limiting wall (1131) opposite to the opening of the first mounting groove (111). The pressing member (220) further includes at least one limiting part (223) connected to the body part (221). The limiting part (223) has an abutment part (224) connected to the side facing the bearing surface (120) and / or away from the bearing surface (120). The limiting part (223) extends into the corresponding recess (113), and the side of the abutment part (224) facing the opening of the first mounting groove (111) abuts against the limiting wall (1131) when the pressing member (220) is not pressed.

6. The button assembly according to claim 5, characterized in that, The main body (221) has a first snap-fit ​​structure (2211) on the side opposite to the opening of the first mounting groove (111); The limiting part (223) has a second snap-fit ​​structure (2231) on the side facing the opening of the first mounting groove (111), and the first snap-fit ​​structure (2211) and the second snap-fit ​​structure (2231) snap-fit ​​together.

7. The button assembly according to claim 5, characterized in that, The limiting part (223) and the main body part (221) are integrally formed. The pressing member (220) has two limiting parts (223), which are located on both sides of the guide part (222).

8. The button assembly according to claim 5, characterized in that, The button assembly further includes at least one elastic element (500), which is located in the first mounting groove (111). One side of the elastic element (500) abuts against the body part (221) and / or the limiting part (223), and the other side abuts against the bottom of the first mounting groove (111).

9. The button assembly according to claim 1, characterized in that, The button assembly also includes a button switch (600) located in the second mounting groove (121), the button switch (600) having a contact portion (610) opposite to the guide hole (112).

10. An electronic device, characterized in that, The electronic device includes a button assembly as described in any one of claims 1 to 9.

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