Electronic device

Abstract

The utility model relates to an electronic device. A housing assembly, a circuit assembly, and a first waterproof portion are provided. The shell assembly comprises an outer shell provided with at least one key hole and a key located in the key hole. The circuit assembly comprises a main board and a switch piece located on the side, facing the key, of the main board, and the key can move in the key hole so as to change the state of the switch piece. The first waterproof part is located on the surface, facing the key, of the main board, the outer shell abuts against the first waterproof part, and the orthographic projection of the key hole on the main board is surrounded by the inner edge of the orthographic projection of the first waterproof part on the main board. The orthographic projection of the key hole on the main board is surrounded by the inner edge of the orthographic projection of the first waterproof part on the main board, and the outer shell is in compression joint with the first waterproof part, so that water flowing in through the key hole can be prevented from flowing out of the first waterproof part, water can be prevented from invading elements, located on the outer side of the first waterproof part, of the electronic equipment, and the service life of the electronic equipment is prolonged. And the waterproof performance of the electronic equipment is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic products, and in particular to an electronic device. Background Art

[0002] As users' requirements for the durability of electronic products continue to increase, major manufacturers are also constantly improving the dustproof, vibration-proof and waterproof functions of electronic products. When the buttons of electronic devices are press-type, liquids can enter the interior of the electronic device through the area near the buttons, causing damage to the electronic components inside the electronic device. Summary of the invention

[0003] The present application provides an electronic device that can solve the problem of low waterproof performance of existing electronic devices. The technical solution is as follows:

[0004] An electronic device, comprising:

[0005] A housing assembly, the housing assembly comprising an outer housing with at least one button hole and a button located in the button hole;

[0006] A circuit assembly, comprising a main board and a switch member located on a side of the main board facing the button, wherein the button can be moved in the button hole to change the state of the switch member;

[0007] The first waterproof part is located on the surface of the mainboard facing the button, the outer shell is in contact with the first waterproof part, and the orthographic projection of the button hole on the mainboard is surrounded by the inner edge of the orthographic projection of the first waterproof part on the mainboard.

[0008] In one embodiment, the first waterproof portion material is an elastic material.

[0009] In one embodiment, the outer shell and the first waterproof portion are interference fit.

[0010] In one embodiment, the material of the first waterproof part is waterproof foam.

[0011] In one of the embodiments, the circuit assembly further includes an adhesive layer located on a side of the mainboard facing the first waterproof portion, and the first waterproof portion is fixed to the mainboard via the adhesive layer.

[0012] In one of the embodiments, a contact piece is disposed on a side of the outer shell facing the mainboard, the contact piece is disposed around the button hole, and the contact piece is pressed against the first waterproof portion.

[0013] In one of the embodiments, the circuit assembly further includes an electronic component located on a side of the mainboard facing the button;

[0014] The electronic device also includes a second waterproof portion located on the side of the mainboard facing the button, the second waterproof portion abuts against the outer shell on a surface away from the mainboard, and is connected to the first waterproof portion to form a waterproof structure surrounding the electronic component.

[0015] In one embodiment, the first waterproof portion and the second waterproof portion are an integrated structure.

[0016] In one of the embodiments, the circuit assembly includes a plurality of the button holes, and the orthographic projections of the plurality of the button holes on the main board are surrounded by the inner edge of the orthographic projection of the same first waterproof portion on the main board.

[0017] In one embodiment, the circuit assembly further includes a waterproof membrane, and the waterproof membrane is coated on the switch element.

[0018] The technical solution provided by the embodiments of the present application may include the following beneficial effects: As can be seen from the above embodiments, the present application is provided with a housing assembly, a circuit assembly and a first waterproof portion. The housing assembly includes an outer housing with at least one button hole and a button located in the button hole. The circuit assembly mainboard and a switch member located on the side of the mainboard facing the button, the button can move in the button hole to change the state of the switch member. The first waterproof portion is located on the surface of the mainboard facing the button, the outer housing abuts against the first waterproof portion, and the orthographic projection of the button hole on the mainboard is surrounded by the inner edge of the orthographic projection of the first waterproof portion on the mainboard. The present application can prevent water flowing in through the button hole from flowing outside the first waterproof portion by having the orthographic projection of the button hole on the mainboard be surrounded by the inner edge of the orthographic projection of the first waterproof portion on the mainboard, and the outer housing is crimped to the first waterproof portion, so as to prevent water from invading the components of the electronic device located outside the first waterproof portion, thereby improving the waterproof performance of the electronic device.

[0019] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a schematic exploded view of a partial structure of an electronic device according to an embodiment of the present application.

[0022] Figure 2It is a schematic diagram of a partial structure of an electronic device according to an embodiment of the present application at a certain viewing angle.

[0023] Figure 3 It is a partial structural cross-sectional view of an electronic device according to an embodiment of the present application at a certain viewing angle.

[0024] Figure 4 It is a schematic structural diagram of a circuit assembly and a waterproof component of an embodiment of the present application at a certain viewing angle.

[0025] Figure 5 It is a structural schematic diagram of a shell assembly of an embodiment of the present application at a certain viewing angle.

[0026] Figure 6 It is a perspective structural diagram of an electronic device according to an embodiment of the present application at a certain viewing angle.

[0027] Figure 7 It is a schematic diagram of a part of the structure of an electronic device according to an embodiment of the present application at another viewing angle.

[0028] Description of reference numerals:

[0029] 10. Shell assembly; 101. Outer shell; 102. Key hole; 103. Key; 104. Abutment member; 20. Circuit assembly; 201. Main board; 202. Switch member; 30. First waterproof portion; 40. Electronic component; 50. Second waterproof portion; 60. Cover plate. DETAILED DESCRIPTION

[0030] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The methods described in the following exemplary embodiments do not represent all methods consistent with the present application. Instead, they are merely examples of devices consistent with some aspects of the present application as detailed in the appended claims.

[0031] An electronic device, referring to Figure 1 , comprising a housing assembly 10, a circuit assembly 20 and a first waterproof portion 30. The housing assembly 10 comprises an outer housing 101 with at least one button hole 102 and a button 103 located in the button hole 102. The circuit assembly 20 comprises a main board 201 and a switch member 202 located on the side of the main board 201 facing the button 103, and the button 103 can move in the button hole 102 to change the state of the switch member 202. The first waterproof portion 30 is located on the surface of the main board 201 facing the button 103, the outer housing 101 abuts against the first waterproof portion 30, and the orthographic projection of the button hole 102 on the main board 201 is surrounded by the inner edge of the orthographic projection of the first waterproof portion 30 on the main board 201.

[0032] During the use of the electronic device, the user controls some functions of the electronic device by pressing the button 103. Specifically, the button 103 controls the functions of the electronic device through the switch 202 provided on the main board 201. The button 103 is inserted into the button hole 102, and one end of the button 103 extends out of the button hole 102 for user use, and the other end of the button 103 is in contact with or separated from the switch 202 to switch the state of the switch 202.

[0033] Reference Figures 3 to 7 In the present application, a first waterproof portion 30 is arranged around the switch component 202. The first waterproof portion 30 separates the switch component 202 from other structures on the mainboard 201. When external liquid enters the electronic device, the first waterproof portion 30 can prevent the liquid from flowing into other areas of the electronic device except where the switch component 202 is located, so as to improve the waterproof performance of the electronic device and thereby improve the service life of the electronic device.

[0034] In practical applications, refer to Figure 2 and Figure 3 The first waterproof part 30 has a certain thickness to ensure its water absorption function. Therefore, when the housing assembly 10 and the circuit assembly 20 are assembled, the outer shell 101 and the first waterproof part 30 are in contact with each other, and then with the main board 201, a waterproof space surrounded by the switch 202 by the first waterproof part 30 can be formed. The waterproof space is located between the outer shell and the main board 201 and surrounded by the first waterproof part 30. The waterproof space is defined for the convenience of the subsequent description and understanding.

[0035] When external liquid flows into the waterproof space from the button hole 102 , due to the existence of the first waterproof portion 30 , the external liquid will not flow to the mainboard 201 or other spaces of the electronic device, thereby achieving a waterproof effect.

[0036] In some embodiments, the circuit assembly 20 further includes a waterproof membrane, which is coated on the switch element 202 .

[0037] Specifically, the waterproof grade standard of the waterproof membrane at least meets the IPX3 and IPX4 waterproof grades.

[0038] Furthermore, the waterproof film may be made of waterproof silica gel, which has excellent sealing and water resistance, and can effectively prevent water molecules from penetrating into the interior of the switch element 202, thereby protecting the switch element 202 from moisture damage.

[0039] Covering the switch element 202 with a waterproof silicone film can not only ensure the control performance of the switch element 202, but also provide conditions for the first waterproof part 30 to absorb external liquid when it enters the waterproof space, so as to achieve waterproof function for other components of the electronic device.

[0040] Furthermore, the switch element is mounted on the mainboard 201 through SMT (Surface Mounted Technology).

[0041] Furthermore, the switch element 202 is configured as a touch switch.

[0042] In some embodiments, the main board 201 is specifically a flexible printed circuit board, which is made of polyimide or polyester film as a substrate and has high reliability and excellent flexibility. It has the characteristics of high wiring density, light weight, thin thickness, good bendability, and waterproof properties, thereby ensuring that the damage caused by external liquid in the waterproof space can be avoided.

[0043] In some embodiments, the material of the first waterproof part 30 is an elastic material. Specifically, the material of the first waterproof part 30 can be selected from rubber, silicone, foam, etc. with strong water absorption.

[0044] Furthermore, relying on the elasticity of the first waterproof portion 30, the interference fit between the outer shell 101 and the first waterproof portion 30 can be satisfied. That is, when the housing assembly 10 and the circuit assembly 20 are installed, the outer shell 101 compresses the first waterproof portion 30 under the action of an external force, further improving the waterproof effect of the waterproof space, thereby ensuring the stability and durability of the electronic device.

[0045] In the present application, by utilizing the water absorption of the first waterproof portion 30 and cooperating with the interference fit between the outer shell 101 and the first waterproof portion 30 , the waterproof capability of the first waterproof portion 30 can be effectively improved.

[0046] Specifically, the compression stroke of the outer shell 101 on the first waterproof part 30 can be limited according to product requirements. This application protects the technical solution of compressing the outer shell 101 and the first waterproof part 30. The compression strokes of both are within the protection scope of this application and will not be elaborated here.

[0047] In some embodiments, reference Figure 2 , Figure 3 and Figure 5 A contact piece 104 is disposed on one side of the outer shell 101 facing the main board 201 . The contact piece 104 is disposed around the button hole 102 , and the contact piece 104 is pressed against the first waterproof portion 30 .

[0048] The arrangement of the abutting member 104 can compress the first waterproof portion 30 more accurately, better avoid the existence of a gap between the first waterproof portion and the outer shell, and further improve the waterproof performance of the waterproof space to improve the stability of the electronic device.

[0049] Furthermore, the contour of the abutment 104 corresponds to the contour of the first waterproof portion 30, and when the abutment 104 and the first waterproof portion 30 are pressed against each other, the opposing surfaces of the two are completely in contact. This arrangement enables the abutment 104 to completely abut against the top surface of the first waterproof portion 30, further avoiding a gap between the abutment 104 and the first waterproof portion 30, further ensuring the waterproof effect of the electronic device, and ensuring the stability and durability of the electronic device.

[0050] The present application arranges an abutment 104 on the outer shell 101, and then performs interference fit with the first waterproof part 30 through the abutment 104, that is, compresses the first waterproof part 30 through the abutment 104, which can greatly improve the waterproof performance of the first waterproof part 30. At the same time, by setting the size of the abutment 104, the size of the compression stroke of the first waterproof part 30 can be controlled to meet the needs of electronic products of different sizes.

[0051] In some embodiments, the material of the first waterproof part 30 is selected from one of nitrile rubber, propylene rubber (ACM), chloroprene rubber (CR), hydrogenated nitrile rubber (HNBR), etc. These rubbers can be enhanced in water absorption by adding materials with high water absorption. At the same time, the above rubbers are also resistant to high temperature and oil.

[0052] In some embodiments, the material of the first waterproof part 30 can be selected from one of hydrophilic silica gel, cross-linked silica gel, porous silica gel and hydrogel silica gel. The softness and elasticity of silica gel can ensure that the water absorption device and the outer shell 101 are closely fitted, which can effectively prevent water from penetrating and protect the internal circuit board and other components of the mobile phone from water damage, so as to improve the waterproof performance of the mobile phone and extend its service life.

[0053] In some embodiments, the material of the first waterproof portion 30 may be waterproof foam.

[0054] First of all, waterproof foam has strong water absorption and can quickly absorb liquid entering the waterproof space, which can improve the waterproof performance of electronic equipment, reduce the damage of water to the inside of electronic equipment, and thus improve the stability and durability of electronic equipment.

[0055] Secondly, the waterproof foam is also soft and elastic to a certain extent, which enables the outer shell 101 and the first waterproof part 30 to have an interference fit, and can adapt to outer shells 101 of different shapes to improve the sealing of the waterproof space.

[0056] Finally, waterproof foam is easy to cut and install, and the material cost itself is low, which can effectively reduce the production cost of electronic equipment.

[0057] In some embodiments, the circuit assembly 20 further includes an adhesive layer located on a side of the mainboard 201 facing the first waterproof portion 30 , and the first waterproof portion 30 is fixed to the mainboard 201 via the adhesive layer.

[0058] In this embodiment, the adhesive layer plays a fixing role and also has a certain positioning and guiding role. Specifically, the adhesive layer is first printed on the area on the main board 201 for setting the first waterproof part by screen printing, and then the waterproof foam is attached to the corresponding position on the main board 201 by a jig.

[0059] The contour of the adhesive layer is consistent with the contour of the first waterproof part 30. This arrangement can ensure the bonding effect between the mainboard 201 and the first waterproof part 30, avoid the gap between the two to allow external liquid to penetrate into the electronic device, and thus improve the waterproof performance of the electronic device.

[0060] In some embodiments, reference Figure 6 The circuit assembly 20 further includes an electronic component 40 located on the side of the mainboard 201 facing the button 103. The electronic device further includes a second waterproof portion 50 located on the side of the mainboard 201 facing the button 103. The surface of the second waterproof portion 50 away from the mainboard 201 abuts against the outer shell 101. The second waterproof portion 50 is connected to the first waterproof portion 30 to form a waterproof structure surrounding the electronic component 40.

[0061] In some electronic devices, the mainboard 201 is provided with an electronic component 40 in an area adjacent to the switch, and the electronic component is surrounded by the first waterproof portion 30. The second waterproof portion 50 can be provided to provide waterproof protection for the electronic component 40, so as to prevent external liquid from damaging the electronic component 40 and causing instability of the electronic device. In some embodiments, the electronic component 40 can be a radio device.

[0062] Specifically, the material of the second waterproof part 50 can be selected in the same range as that of the first waterproof part 30. No further details are given here. Further, the material of the second waterproof part 50 can be the same as that of the first waterproof part 30, and an abutment member 104 having the same profile as the second waterproof part 50 can be provided on the outer shell 101 to ensure the waterproof effect on the electronic component 40. An adhesive layer having the same profile as the main board 201 is provided on the main board 201 to further ensure its waterproof protection for the inside of the electronic device.

[0063] Furthermore, in the same electronic device, the material of the first waterproof portion 30 may be the same as or different from the material of the first waterproof portion 30 , and may be selected according to the actual needs of the electronic device.

[0064] In some embodiments, when the material of the first waterproof part 30 and the material of the second waterproof part 50 are the same, in order to save production costs and facilitate bonding of the two to the mainboard, the first waterproof part 30 and the second waterproof part 50 can be an integrated structure. That is, the first waterproof part 30 and the second waterproof part 50 are formed in one piece during production and manufacturing, and are installed on the mainboard at the same time during subsequent installation, which can save production and installation steps and reduce the production cost of the electronic device.

[0065] In one embodiment, the contours of the adhesive layer on the mainboard 201 and the abutment 104 provided on the outer shell 101 are consistent with the contours of the integrated structure of the first waterproof portion 30 and the second waterproof portion 50. Similarly, when the adhesive layer is screen-printed or the abutment 104 is manufactured, it can be directly produced in one piece according to the needs, which can not only increase the accuracy of the adhesive layer and the abutment 104, but also effectively save the steps of preparation, manufacturing and installation, greatly reducing the production cost of the electronic device.

[0066] In some embodiments, the circuit assembly 20 includes a plurality of button holes, and the orthographic projections of the plurality of button holes on the mainboard are surrounded by the inner edge of the orthographic projection of the same first waterproof portion 30 on the mainboard. In this way, the waterproof effect is achieved, and the production cost of the electronic device can be greatly reduced by controlling the number of the first waterproof portions 30.

[0067] In some embodiments, the housing assembly 10 further includes a cover plate 60. The cover plate 60 is fixed to a side of the outer housing 101 away from the circuit assembly 20. The cover plate 60 is provided with a pressing portion corresponding to the key hole 102. The key 103 passes through the key hole 102 and abuts against the pressing portion.

[0068] The setting of the cover plate 60 can not only prevent the entry of some external liquids and dust, but also can meet the aesthetic design requirements of different electronic devices by changing the style of the cover plate 60, and can achieve flexible color matching.

[0069] Furthermore, the cover plate 60 is detachably connected to the outer shell 101. The user can replace the cover plate 60 according to preference. This arrangement makes the use of the electronic device more flexible and more adaptable to meet the needs and application scenarios of different users.

[0070] In some embodiments, the housing assembly 10 further includes a connector, which is used to fix the button 103 to the housing 101. The connection method between the connector and the housing 101 is not limited in the present application, as long as the two are relatively fixed to each other to meet the user's control and adjustment functions. Specifically, the connector is made of a hot melt column material. The button 103 is bonded to the housing 101 through the hot melt column.

[0071] In some implementations, the electronic device is preferably but not limited to a mobile terminal, and may be an electronic product terminal such as a mobile phone, a telephone, an intercom, or a tablet computer.

[0072] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one" or "one" do not indicate a quantitative limit, but indicate that there is at least one, and if only "one" is referred to, it will be separately described. "Multiple" or "several" means two or more. Unless otherwise specified, similar words such as "front", "rear", "lower" and / or "upper" are only for the convenience of explanation, and are not limited to one position or one spatial orientation. Similar words such as "include" or "comprise" mean that the elements or objects appearing in front of "include" or "comprise" cover the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Connected" or "connected" and similar words are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect. The singular forms "a", "said" and "the" used in this specification and the appended claims are also intended to include plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0073] The specific embodiments described herein are merely examples of the spirit of the present application. A person skilled in the art of the present application may make various modifications, supplements, or replace the described specific embodiments with similar methods, but they will not deviate from the spirit of the present application or exceed the scope defined by the attached claims.

[0074] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. An electronic device, characterized in that: include: A housing assembly, the housing assembly comprising an outer housing with at least one button hole and a button located in the button hole; A circuit assembly, comprising a main board and a switch member located on a side of the main board facing the button, wherein the button can be moved in the button hole to change the state of the switch member; The first waterproof part is located on the surface of the mainboard facing the button, the outer shell is in contact with the first waterproof part, and the orthographic projection of the button hole on the mainboard is surrounded by the inner edge of the orthographic projection of the first waterproof part on the mainboard.

2. The electronic device according to claim 1, characterized in that: The first waterproof part material is an elastic material.

3. The electronic device according to claim 2, characterized in that: The outer shell and the first waterproof part are in interference fit.

4. The electronic device according to claim 2, characterized in that: The material of the first waterproof part is waterproof foam.

5. The electronic device according to claim 4, characterized in that: The circuit assembly further includes an adhesive layer located on a side of the mainboard facing the first waterproof portion, and the first waterproof portion is fixed to the mainboard via the adhesive layer.

6. The electronic device according to any one of claims 1 to 4, characterized in that: A contact piece is arranged on one side of the outer shell facing the mainboard. The contact piece is arranged around the button hole and is pressed against the first waterproof part.

7. The electronic device according to any one of claims 1 to 4, characterized in that: The circuit assembly also includes an electronic component located on a side of the main board facing the button; The electronic device also includes a second waterproof portion located on the side of the mainboard facing the button, the second waterproof portion abuts against the outer shell on a surface away from the mainboard, and is connected to the first waterproof portion to form a waterproof structure surrounding the electronic component.

8. The electronic device according to claim 7, characterized in that: The first waterproof part and the second waterproof part are an integrated structure.

9. The electronic device according to claim 1, characterized in that: The circuit assembly comprises a plurality of button holes, and the orthographic projections of the plurality of button holes on the main board are surrounded by the inner edge of the orthographic projection of the same first waterproof part on the main board.

10. The electronic device according to claim 1, characterized in that: The circuit assembly further comprises a waterproof membrane, and the waterproof membrane is coated on the switch element.

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