Sensor and electronic product

Abstract

The utility model discloses a sensor and an electronic product. The sensor comprises a substrate; the shell is arranged on the base plate, and the shell and the base plate are matched to define a containing cavity; the protective film is arranged on one side, back on to the substrate, of the shell, and the shell can be connected with a shell of an electronic product through the protective film. According to the sensor, the protective film is arranged on the shell of the sensor, the sensor and the shell of the electronic product are connected through the protective film, the protective film can effectively isolate the sensor from the shell of the electronic product, the shell of the sensor is prevented from being in direct contact with the shell of the electronic product, galvanic corrosion is avoided, and product failure is prevented.

Description

Technical Field

[0001] This utility model relates to the field of electronic product manufacturing technology, and more specifically, to a sensor and an electronic product. Background Technology

[0002] Currently, watches and mobile phones are becoming increasingly thinner and lighter, with many cases made of aluminum or aluminum oxide. However, to ensure greater product strength and better protection for the internal chips, the sensor housings are typically made of stainless steel.

[0003] Under normal circumstances, the sensor housing directly contacts the internal casing of a smartwatch or smartphone. Due to the significant difference in electrical potential between aluminum and stainless steel, galvanic corrosion easily occurs upon contact, especially in the presence of solutions such as seawater or swimming pool water (when the watch or phone is used in similar environments). Furthermore, aluminum has a more negative electrode potential, readily losing electrons to become the anode, while stainless steel becomes the cathode. This accelerates the corrosion rate of aluminum, leading to corrosion of the watch or phone casing. This is particularly pronounced in high-temperature and high-humidity environments, which further accelerates corrosion, reducing the waterproof performance of the smartwatch or phone and causing product failure. Utility Model Content

[0004] One objective of this invention is to provide a new technical solution for sensors and electronic products, which can at least solve the problems in the prior art where the casing of sensors and electronic products is corroded due to potential differences, causing product failure.

[0005] In a first aspect, this utility model provides a sensor, comprising: a substrate; a housing disposed on the substrate, the housing and the substrate cooperating to define a receiving cavity; and a protective film disposed on the side of the housing facing away from the substrate, the housing being capable of being connected to the outer casing of an electronic product through the protective film.

[0006] Optionally, the protective film is an insulating material.

[0007] Optionally, the protective film is one of a polyimide material, a polyethylene material, or a polyvinyl chloride material.

[0008] Optionally, the thickness of the protective film is 0.1-0.7 mm.

[0009] Optionally, the housing has a through hole on the side facing away from the substrate, and the protective film is positioned on the housing corresponding to the position of the through hole, and can at least cover the through hole.

[0010] Optionally, the protective film is adhesively bonded to the housing.

[0011] Optionally, a sealing ring is provided on the outer periphery of the housing.

[0012] Optionally, the substrate is a circuit board, and a chip is disposed on the circuit board, the chip being located within the receiving cavity.

[0013] A second aspect of this utility model provides an electronic product, comprising: a housing; and the sensor described in the above embodiments, wherein the housing of the sensor is connected to the housing via a protective film.

[0014] Optionally, a support member is provided between the outer shell and the protective film.

[0015] The sensor of this invention uses a protective film on its housing to connect the sensor and the outer casing of the electronic product. The protective film effectively isolates the sensor from the outer casing of the electronic product, preventing direct contact between the sensor housing and the outer casing of the electronic product, avoiding galvanic corrosion, and preventing product failure.

[0016] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0018] Figure 1 This is a top view of the sensor according to an embodiment of the present utility model;

[0019] Figure 2 yes Figure 1 Cross-sectional view of line AA along the middle.

[0020] Figure label:

[0021] Substrate 10; Chip 11;

[0022] 20 housing; 21 receiving cavity; 22 through hole;

[0023] Protective film 30;

[0024] Sealing ring 40;

[0025] Casing 50;

[0026] Support component 60;

[0027] Silver paste 70;

[0028] Direction identification marker 80. Detailed Implementation

[0029] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0030] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0031] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0032] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0034] In the specification and claims of this utility model, the terms "first" and "second" may explicitly or implicitly include one or more of those features. In the description of this utility model, unless otherwise stated, "multiple" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0035] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and other terms indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] The sensor according to an embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0038] like Figure 1 and Figure 2 As shown, the sensor according to an embodiment of the present invention includes a substrate 10, a housing 20, and a protective film 30.

[0039] Specifically, the housing 20 is disposed on the substrate 10, and the housing 20 and the substrate 10 cooperate to define the receiving cavity 21. The protective film 30 is disposed on the side of the housing 20 facing away from the substrate 10, and the housing 20 can be connected to the outer casing 50 of the electronic product through the protective film 30.

[0040] In other words, see Figure 1 and Figure 2 The sensor according to this embodiment mainly consists of a substrate 10, a housing 20, and a protective film 30. This sensor can be a pressure sensor, a temperature sensor, or other types of sensors. It should be noted that the sensor of this invention is a highly sealed sensor that needs to be in direct contact with the environment, which presents a problem where the sensor housing 20 contacts the outer casing 50 of the electronic product. For the sensor of this invention, the outer wall of the housing 20 is sealed to the inner wall of the groove of the outer casing 50 of the electronic product through a sealing ring 40 to prevent leakage and water ingress. For other ordinary, low-requirement sensor components, a separate or integrated protective module can be provided at the opening of the housing.

[0041] like Figure 2 As shown, the sensor housing 20 is mounted on the substrate 10. The housing 20 has an internal cavity, and the housing 20 and the substrate 10 can cooperate to define a receiving cavity 21. The housing 20 can be supported by stainless steel. The receiving cavity 21 is used to install the chip 11 or other electronic components.

[0042] like Figure 2As shown, the protective film 30 is installed on the side of the housing 20 facing away from the substrate 10. The housing 20 can be connected to the outer casing 50 of the electronic product through the protective film 30, preventing the sensor housing 20 from directly contacting the outer casing 50 of the electronic product. The outer casing 50 of the electronic product can be made of aluminum or alumina. By providing a protective film 30 on the sensor housing 20 and connecting the sensor and the outer casing 50 of the electronic product through the protective film 30, the sensor and the outer casing 50 of the electronic product can be effectively isolated, preventing direct contact between the sensor housing 20 and the outer casing 50 of the electronic product, avoiding galvanic corrosion, and preventing product failure.

[0043] It should be noted that, typically, to meet the miniaturization and lightweight design requirements of electronic products, the casing 50 of electronic products (such as watches or mobile phones) is made of aluminum or alumina, while the sensor housing 20 is made of stainless steel. Due to the significant difference in electrical potential between aluminum and stainless steel, galvanic corrosion easily occurs when they come into contact, especially in the presence of solutions such as seawater or swimming pool water (when watches or mobile phones are used in similar environments). Furthermore, aluminum has a more negative electrode potential, easily losing electrons to become the anode, while stainless steel becomes the cathode. This leads to an accelerated corrosion rate of aluminum, meaning the watch or phone casing will corrode. This corrosion is particularly accelerated in high-temperature and high-humidity environments, causing a decrease in the waterproof performance of smartwatches or mobile phones, ultimately resulting in product failure.

[0044] In this invention, the protective film 30 can be a waterproof and breathable film. By setting a protective film 30 on the sensor housing 20, the sensor and the electronic product housing 50 are connected by the protective film 30. The protective film 30 can not only provide good waterproof effect to prevent external moisture from entering the product, but also effectively isolate the sensor and the electronic product housing 50, preventing direct contact between the sensor housing 20 and the electronic product housing 50, avoiding galvanic corrosion and preventing product failure.

[0045] According to one embodiment of this utility model, the protective film 30 is an insulating material component. That is, the protective film 30 can be made of insulating material, providing good insulation between the electronic product and the sensor. The protective film 30 also provides good waterproofing, effectively preventing water from entering the product and causing short circuits in the chip 11 and product failure. Furthermore, the insulating protective film 30 on the top of the housing 20 also provides insulation, effectively preventing direct contact between the stainless steel housing 20 of the sensor and the aluminum casing or phone case of the electronic product, thereby avoiding galvanic corrosion and preventing corrosion of the casing or phone case.

[0046] According to one embodiment of this utility model, the protective film 30 can be made of polyimide, polyethylene, or polyvinyl chloride. Polyimide, polyethylene, or polyvinyl chloride are all excellent insulating and waterproof materials. They provide good waterproofing, effectively preventing water from entering the product and causing short circuits in the chip 11 and product failure. Furthermore, they provide insulation, effectively preventing direct contact between the stainless steel housing 20 of the sensor and the aluminum casing of electronic products or mobile phone cases, thereby avoiding galvanic corrosion and preventing corrosion of the casing or mobile phone case.

[0047] According to one embodiment of this utility model, the thickness of the protective film 30 can be 0.1-0.7mm, providing good waterproofing and insulation. It effectively prevents water and other contaminants from entering the product, causing short circuits in the chip 11 and product failure. It also effectively prevents direct contact between the stainless steel housing 20 of the sensor and the aluminum casing of electronic products or mobile phone cases, thus avoiding galvanic corrosion and preventing corrosion of the casing or mobile phone case. Of course, the specific thickness of the protective film 30 can be set according to actual needs, and will not be described in detail in this utility model.

[0048] According to one embodiment of the present invention, a through hole 22 is provided on the side of the housing 20 facing away from the substrate 10, and the protective film 30 is positioned on the housing 20 corresponding to the position of the through hole 22, and can at least cover the through hole 22.

[0049] In other words, see Figure 2 A through hole 22 is provided on the side of the housing 20 facing away from the substrate 10. The position of the protective film 30 on the housing 20 corresponds to the position of the through hole 22. The protective film 30 can be set as an annular film. The protective film 30 can at least cover the through hole 22, effectively preventing water and other substances from entering the product and causing short circuit of the chip 11 and product failure. It also effectively prevents the stainless steel housing 20 of the sensor from directly contacting the aluminum material of the electronic product's watch case or mobile phone case, thereby avoiding galvanic corrosion and preventing corrosion of the watch case or mobile phone case.

[0050] According to one embodiment of the present invention, such as Figure 2 As shown, the protective film 30 and the housing 20 can be adhesively bonded together. For example, the protective film 30 and the sensor housing 20 can be bonded together using epoxy glue or silicone adhesive to improve the stability of the connection between the protective film 30 and the housing 20.

[0051] According to one embodiment of the present invention, such as Figure 1 and Figure 2As shown, a sealing ring 40 can be provided on the outer periphery of the housing 20. The sealing ring 40 is located between the sensor housing 20 and the electronic product casing 50, forming an effective seal. The sealing ring 40 can be an O-ring, and the material of the sealing ring 40 can be silicone. Together with the protective film 30, the sealing ring 40 prevents moisture or other impurities from entering the product.

[0052] According to one embodiment of the present invention, the substrate 10 is a circuit board, and a chip 11 is provided on the circuit board, with the chip 11 located in the receiving cavity 21.

[0053] In other words, see Figure 2 The substrate 10 can be a circuit board, and the substrate 10 and the housing 20 can be bonded together with silver paste 70. A chip 11 is disposed on the circuit board, and the chip 11 is located in the receiving cavity 21 to form a complete sensor.

[0054] In summary, according to the sensor of this utility model embodiment, by providing a protective film 30 on the sensor housing 20, the sensor and the electronic product housing 50 are connected by the protective film 30. The protective film 30 can not only provide good waterproof effect, preventing external moisture from entering the product, but also effectively isolate the sensor and the electronic product housing 50, preventing direct contact between the sensor housing 20 and the electronic product housing 50, avoiding galvanic corrosion and preventing product failure.

[0055] Of course, for those skilled in the art, other structures of the sensor (such as the orientation recognition mark 80) and their working principles are understandable and achievable, and will not be described in detail in this utility model.

[0056] According to a second aspect of the present invention, an electronic product is provided, including a housing 50 and the sensor described in the above embodiments.

[0057] Specifically, the sensor housing 20 is connected to the outer shell 50 via a protective film 30.

[0058] In other words, such as Figure 1 and Figure 2As shown, the electronic product according to this embodiment of the utility model can be a mobile phone, watch, or other smart product. The electronic product mainly consists of a housing 50 and the sensor described in the above embodiment. The sensor housing 20 can be connected to the housing 50 via a protective film 30, preventing direct contact between the sensor housing 20 and the electronic product housing 50. The electronic product housing 50 can be made of aluminum or alumina. By providing a protective film 30 on the sensor housing 20, the sensor and the electronic product housing 50 are connected. The protective film 30 provides good waterproofing, preventing external moisture from entering the product, and effectively isolates the sensor from the electronic product housing 50, preventing direct contact between the sensor housing 20 and the electronic product housing 50, avoiding galvanic corrosion, and preventing product failure.

[0059] This invention employs a simple, reliable, and easy-to-implement method to solve the problem of poor galvanic corrosion between the sensor and the watch case or mobile phone case (electronic product). It can be effectively applied to waterproof consumer electronics products and is of great significance.

[0060] According to one embodiment of the present invention, such as Figure 2 As shown, a support member 60 is provided between the outer shell 50 and the protective film 30. The support member 60 can be configured as an annular insulating member, and can be made of materials such as polyimide, polyethylene, or polyvinyl chloride, to achieve an effective connection between the outer shell 50 and the protective film 30.

[0061] Of course, other structures and working principles of electronic products are understandable and achievable by those skilled in the art, and will not be described in detail in this utility model.

[0062] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A sensor, characterized in that, include: base(10); A housing (20) is disposed on the substrate (10), and the housing (20) cooperates with the substrate (10) to define a receiving cavity (21); A protective film (30) is disposed on the side of the housing (20) facing away from the substrate (10), and the housing (20) can be connected to the outer shell (50) of the electronic product through the protective film (30).

2. The sensor according to claim 1, characterized in that, The protective film (30) is an insulating material component.

3. The sensor according to claim 1, characterized in that, The protective film (30) is one of polyimide material, polyethylene material or polyvinyl chloride material.

4. The sensor according to claim 1, characterized in that, The thickness of the protective film (30) is 0.1-0.7 mm.

5. The sensor according to claim 1, characterized in that, The housing (20) has a through hole (22) on the side facing away from the substrate (10). The protective film (30) is positioned on the housing (20) corresponding to the position of the through hole (22) and can at least cover the through hole (22).

6. The sensor according to claim 1, characterized in that, The protective film (30) is adhesively bonded to the housing (20).

7. The sensor according to claim 1, characterized in that, A sealing ring (40) is provided on the outer periphery of the housing (20).

8. The sensor according to claim 1, characterized in that, The substrate (10) is a circuit board, and a chip (11) is provided on the circuit board. The chip (11) is located in the receiving cavity (21).

9. An electronic product, characterized in that, include: Outer shell (50); The sensor according to any one of claims 1-8, wherein the housing (20) of the sensor is connected to the outer shell (50) via a protective film (30).

10. The electronic product according to claim 9, characterized in that, A support member (60) is provided between the outer shell (50) and the protective film (30).

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