Enclosure and optoelectronic device

Abstract

The application discloses an outer shell and a photoelectric device, and relates to the technical field of photoelectricity. The outer shell comprises a main body and a shielding coating. The main body has a containing cavity in the inside. The surface of the main body in contact with the containing cavity is an inner surface. The rest of the surfaces of the main body except the inner surface are outer surfaces. The shielding coating is used for shielding electromagnetic signals and covers the outer surfaces of the main body. The embodiment of the application can solve the problem of low assembly efficiency of the outer shell.

Description

Technical Field

[0001] This application relates to the field of optoelectronic technology, and in particular to housings and optoelectronic devices. Background Technology

[0002] The housing is a component of optoelectronic devices, used to house various electronic components and provide protection for them.

[0003] In related technologies, there exists an optoelectronic device that must ensure its internal electronic components are not interfered with by external electromagnetic signals, while also ensuring that the electromagnetic signals generated by the internal electronic components themselves do not interfere with other optoelectronic devices. To meet these requirements, the outer casing of such an optoelectronic device is typically made of metal, thus serving to shield electromagnetic signals.

[0004] However, a metal casing would significantly increase the cost of optoelectronic devices. Utility Model Content

[0005] This application provides a housing and an optoelectronic device to solve the problem of high cost. The technical solution is as follows:

[0006] Firstly, a housing is provided, comprising a body and a shielding coating. The body has a cavity for housing electronic devices. The surface of the body is divided into an inner surface and an outer surface, wherein the inner surface of the body is the surface in contact with the cavity, and the outer surface of the body is all surfaces except the inner surface. The shielding coating covers the outer surface of the body. Since the shielding coating is used to shield electromagnetic signals, the body covered with the shielding coating can effectively shield electromagnetic signals. In this way, it can prevent the electronic devices located in the cavity from being interfered with by external electromagnetic signals, and also prevent the electromagnetic signals generated by the electronic devices located in the cavity from interfering with other external optoelectronic devices.

[0007] The housing provided in this application embodiment has at least the following effects:

[0008] By covering the main body with the shielding coating, the outer shell can shield electromagnetic signals. Since the shielding function is achieved through the shielding coating, the main body no longer needs to be designed as a metal structure, thereby effectively reducing the cost of the main body and solving the problem of the high cost of the outer shell.

[0009] In one implementation of this application, the main body is a non-metallic structural component. Compared to metallic structural components, non-metallic structural components have lower costs, effectively reducing the overall cost. The shielding coating is a metallic film. Due to the properties of metal, electromagnetic signals are reflected and absorbed at the shielding coating, thus attenuating the energy of the electromagnetic signals and achieving shielding. Because the shielding coating is thin, even as a metallic film, it does not significantly increase the cost. This design not only ensures the reliability of the electromagnetic shielding of the outer casing but also effectively saves costs.

[0010] In one implementation of this application, the main body includes a first housing and a second housing, which are connected to form the accommodating cavity. Since the main body is divided into the first housing and the second housing, the shielding coating is also divided into two parts: one part of the shielding coating is located in the first housing, and the other part is located in the second housing. This design effectively ensures reliable coverage of the main body by the shielding coating, thereby improving the electromagnetic shielding reliability of the outer casing.

[0011] In one implementation of this application, the main body further includes reinforcing ribs, each rib having at least two parts. A first part of the reinforcing rib is located on the side of the first housing facing the second housing, and a second part of the reinforcing rib is located on the side of the second housing facing the first housing. By providing the reinforcing ribs on the first and second housings, the structural strength of the main body can be effectively improved, thus facilitating the application of the shielding coating to the outer surface of the main body. Furthermore, placing the reinforcing ribs on opposite sides of the first and second housings ensures that the reinforcing ribs do not affect the shielding coating covering the outer surface of the main body. Moreover, since the first part of the reinforcing rib faces the second housing, and the second part faces the first housing, the first and second parts of the reinforcing rib are arranged opposite each other, which is beneficial for improving the overall structural strength of the main body.

[0012] In one implementation of this application, the main body further includes a mounting base and a first connecting member, wherein the mounting base is connected to the first housing, and the first connecting member penetrates the second housing and is inserted into the mounting base. Through the above design, the connection between the first housing and the second housing is achieved using the mounting base and the first connecting member.

[0013] In one implementation of this application, the mounting base includes a base body and a second connecting member. The base body is located at the outer edge of the first housing and connected to the first housing. The base body has a groove, and the second connecting member is located within the groove. Since the opening of the groove faces the second housing, the second connecting member located within the groove also faces the second housing, thus facilitating connection with the first connecting member. Furthermore, the second connecting member is spaced apart from the outer edge of the first housing, thereby preventing deformation and bulging of the outer edge of the first housing due to high temperatures during assembly, which could affect the shielding coating.

[0014] In one implementation of this application, the main body further includes a first snap-fit ​​member and a second snap-fit ​​member. One of the first snap-fit ​​member and the second snap-fit ​​member is connected to the first housing, and the other is connected to the second housing. The first snap-fit ​​member and the second snap-fit ​​member are interlocked. Through the cooperation between the first snap-fit ​​member and the second snap-fit ​​member, a detachable connection between the first housing and the second housing can be achieved, thereby improving the ease of assembly of the main body.

[0015] In one implementation of this application, the thickness of the shielding coating is 10 μm to 100 μm. Designing the thickness of the shielding coating to these values ​​avoids both insufficient thickness leading to poor electromagnetic shielding and excessive thickness leading to excessively high costs.

[0016] In one implementation of this application, the outer surface of the body has an etched texture. By creating an etched texture on the outer surface of the body, a microporous structure can be formed on the outer surface of the body, thereby improving the adhesion of the shielding coating to the outer surface of the body. Furthermore, by creating the etched texture on the outer surface of the body, it is also possible to prevent the outer surface of the body from becoming contaminated.

[0017] Secondly, an optoelectronic device is provided, comprising a housing and electronic components. The housing is the same as described in the first aspect, and the electronic components are at least partially located within a cavity of the housing. Since the outer surface of the main body of the housing is covered with a shielding coating capable of shielding electromagnetic signals, placing the electronic components within the housing avoids interference from external electromagnetic signals to the electronic components, and also prevents the electromagnetic signals generated by the electronic components from interfering with other external optoelectronic devices.

[0018] The optoelectronic device provided in this application embodiment has at least the following effects:

[0019] By covering the main body with the shielding coating, the outer shell can shield electromagnetic signals. Since the shielding function is achieved through the shielding coating, the main body no longer needs to be designed as a metal structure, thereby effectively reducing the cost of the main body and solving the problem of high cost of the optoelectronic device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the optoelectronic device provided in the embodiments of this application;

[0021] Figure 2 A schematic diagram of the outer casing provided in the embodiments of this application;

[0022] Figure 3 This is a schematic diagram of the shielding coating provided in the embodiments of this application;

[0023] Figure 4 A schematic diagram of the structure of the first housing provided in an embodiment of this application;

[0024] Figure 5 A top view of the first housing provided for an embodiment of this application;

[0025] Figure 6 A schematic diagram of the structure of the second housing provided in an embodiment of this application;

[0026] Figure 7 This is a schematic diagram of the installation of the second connector provided in an embodiment of this application.

[0027] Legend:

[0028] 10. Main body;

[0029] 110. Receiving cavity; 120. First housing; 121. Base plate; 1211. First side; 1212. Second side; 1213. Third side; 1214. Fourth side; 122. Side plate; 123. End plate; 124. Divider column; 125. Insertion notch; 126. Insertion through hole; 130. Second housing; 131. Base; 140. Reinforcing rib; 141. Transverse rib; 142. Longitudinal rib; 150. Mounting base; 151. Base body; 152. Second connector; 153. Groove; 160. First connector;

[0030] 20. Shielding coating;

[0031] 100. Outer shell;

[0032] 200. Electronic devices.

[0033] 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

[0034] The terminology used in the implementation section of this application is for the purpose of explaining the embodiments of this application only, and is not intended to limit this application.

[0035] Some optoelectronic devices, which mainly consist of a housing and electronic components housed within it, require protection against electromagnetic interference (EMI). For example, optical communication optoelectronic devices need to meet EMC (electromagnetic compatibility) certification. This requires ensuring that the internal electronic components are not affected by external electromagnetic signals, while also ensuring that the electromagnetic signals generated by the internal electronic components themselves do not interfere with other optoelectronic devices.

[0036] To address the aforementioned problems, this disclosure provides an optoelectronic device. Figure 1 See the schematic diagram of the optoelectronic device. Figure 1 In this embodiment, the optoelectronic device includes a housing and electronic components, with the electronic components at least partially located within the accommodating cavity 110.

[0037] The casing provides a mounting base for the optoelectronic equipment and also protects it.

[0038] In this embodiment, the optoelectronic device is an optical module. Of course, in other embodiments, the optoelectronic device can also be other devices that require electromagnetic interference resistance, and this application does not impose any limitations on this.

[0039] Figure 2 This is a schematic diagram of the outer shell structure, combined with Figure 2 In this embodiment, the outer shell includes a main body 10 and a shielding coating 20.

[0040] The main body 10 has a cavity 110 inside. The surface of the main body 10 that contacts the cavity 110 is the inner surface, and the other surfaces of the main body 10 other than the inner surface are the outer surfaces.

[0041] In the above implementation, the accommodating cavity 110 is used to accommodate electronic devices. The surface of the main body 10 is divided into an inner surface and an outer surface. The inner surface of the main body 10 is the surface that contacts the accommodating cavity 110, and the outer surface of the main body 10 is the remaining surface other than the inner surface.

[0042] The shielding coating 20 is used to shield electromagnetic signals, and the shielding coating 20 covers the outer surface of the body 10 (see [reference]). Figure 3 ).

[0043] In this way, the main body 10 covered with the shielding coating 20 can shield electromagnetic signals. Thus, the outer shell can both prevent the electronic devices located in the accommodating cavity 110 from being interfered with by external electromagnetic signals, and also prevent the electromagnetic signals generated by the electronic devices located in the accommodating cavity 110 from interfering with other external optoelectronic devices.

[0044] Furthermore, by covering the main body 10 with a shielding coating 20, the outer shell can shield electromagnetic signals. Since the function of shielding electromagnetic signals is achieved through the shielding coating 20, the main body 10 no longer needs to be designed as a metal structural component, thereby effectively reducing the cost of the main body 10 and solving the problem of high cost of the outer shell.

[0045] In this embodiment, the main body 10 is a non-metallic structural component.

[0046] Compared to metal structural components, non-metal structural components have lower costs, which can effectively reduce the cost of the main body 10.

[0047] In some examples, the main body 10 is plastic, such as ABS plastic, PA plastic, PC plastic, etc., or it is a combination of two or more plastics.

[0048] ABS plastic is a terpolymer of acrylonitrile, butadiene, and styrene, and has good chemical resistance, heat resistance, high elasticity, and toughness.

[0049] PA plastic is nylon, a general term for thermoplastic resins containing repeating amide groups in their molecular chains. It has good wear resistance, corrosion resistance and oil resistance.

[0050] PC plastic is polycarbonate, a high molecular polymer containing carbonate groups in its molecular chain. It has good flame retardancy, oxidation resistance and heat resistance.

[0051] The combination of two plastics can be a combination of PC plastic and ABS plastic. The combination of the two plastics mentioned above is an engineering plastic alloy, which has both the excellent heat resistance, weather resistance, dimensional stability and impact resistance of PC plastic and the excellent processing fluidity of ABS plastic.

[0052] A combination of two or more plastics can be a combination of ABS plastic, PA plastic, and PC plastic.

[0053] The types or combinations of plastics can be adjusted according to actual needs, and this application does not impose any restrictions on this.

[0054] In this embodiment, the shielding coating 20 is a metal film.

[0055] By utilizing the properties of metal, electromagnetic signals are reflected and absorbed at the shielding coating 20, thereby attenuating the energy of the electromagnetic signals and achieving shielding. Because the shielding coating 20 is relatively thin, even though it is a metal film, it does not significantly increase the cost. This design not only ensures the reliability of the electromagnetic shielding of the casing but also effectively saves costs.

[0056] In some examples, the shielding coating 20 is a single type of metal film such as copper metal film, tweezers metal film, chromium metal film, or aluminum metal film.

[0057] In other examples, the shielding coating 20 is a combination of two or more metal films, such as a combination of copper and aluminum metal films.

[0058] For example, the thickness of the shielding coating 20 is 10 μm to 100 μm.

[0059] By designing the thickness of the shielding coating 20 to the above values, it is possible to avoid both insufficient thickness of the shielding coating 20 leading to poor electromagnetic shielding effect and excessive thickness of the shielding coating 20 leading to excessive cost.

[0060] In this embodiment, the thickness of the shielding coating 20 is 50 μm.

[0061] Of course, in other embodiments, the thickness of the shielding coating 20 can be adjusted to other values ​​within the above-mentioned thickness range according to actual needs.

[0062] In this embodiment, the shielding coating 20 is applied to the outer surface of the main body 10 by electroplating.

[0063] Using electroplating to set the shielding coating 20 not only has a lower manufacturing cost, but also makes the shielding coating 20 more firmly attached to the outer surface of the main body 10, ensuring reliability.

[0064] It is worth noting that since the electroplating process generates high temperatures, the main body 10 should be made of heat-resistant plastic so that it can withstand temperatures above 85 degrees Celsius.

[0065] Furthermore, in order to ensure the integrity of the shielding coating 20, the outer surface of the main body 10 should not have recessed structures such as deep holes or blind holes, and the outer surface of the main body 10 should be relatively flat.

[0066] In other embodiments, the shielding coating 20 can also be applied to the outer surface of the body 10 by means of vacuum plating or ion plating.

[0067] In order to improve the adhesion of the shielding coating 20 to the outer surface of the body 10, in this embodiment, the outer surface of the body 10 has an etched texture.

[0068] By creating an etched texture on the outer surface of the main body 10, a microporous structure can be formed on the outer surface of the main body 10, thereby improving the adhesion of the shielding coating 20 to the outer surface of the main body 10.

[0069] Furthermore, by applying the etching texture to the outer surface of the main body 10, it is possible to prevent dirt, such as fingerprints or dust, from getting on the outer surface of the main body 10.

[0070] In other embodiments, a matte plating method is used, making the side of the shielding coating 20 facing away from the main body 10 matte. This design also prevents dirt, such as user fingerprints and dust, from getting on the outer surface of the main body 10.

[0071] Of course, if an etched texture has already been set, then a glossy plating method can also be used to set the shielding coating 20.

[0072] See also Figure 2 In this embodiment, the main body 10 includes a first housing 120 and a second housing 130, which are connected to form a receiving cavity 110.

[0073] Since the accommodating cavity 110 is composed of two parts, the first housing 120 and the second housing 130, it can conveniently place electronic devices.

[0074] To ensure complete electromagnetic shielding for the first housing 120 and the second housing 130, a portion of the shielding coating 20 is located in the first housing 120, and another portion of the shielding coating 20 is located in the second housing 130.

[0075] Through the above design, the shielding coating 20 effectively ensures reliable coverage of the main body 10, thereby improving the electromagnetic shielding reliability of the shell.

[0076] During the electroplating process to form the shielding coating 20, the first housing 120 and the second housing 130 can be connected into a whole before electroplating together, or the first housing 120 and the second housing 130 can be electroplated separately before assembling into a whole.

[0077] Figure 4 This is a structural schematic diagram of the first housing 120, combined with... Figure 4 In this embodiment, the first housing 120 includes a bottom plate 121 and two side plates 122.

[0078] Figure 5 This is a top view of the first shell, combined with... Figure 5The base plate 121 is a rectangular structural component, comprising a first side 1211, a second side 1212, a third side 1213, and a fourth side 1214 connected in sequence. The first side 1211 and the third side 1213 are opposite to and parallel to each other, and the second side 1212 and the fourth side 1214 are opposite to and parallel to each other. One of the two side plates 122 is connected to the first side 1211 of the base plate 121, and the other of the two side plates 122 is connected to the third side 1213 of the base plate 121. The two side plates 122 are arranged relatively parallel to each other.

[0079] Figure 6 This is a structural schematic diagram of the second housing 130, combined with... Figure 6 In this embodiment, the second housing 130 is a plate-shaped structural component. After the second housing 130 and the first housing 120 are assembled in place, the second housing 130 and the bottom plate 121 of the first housing 120 are arranged opposite to each other and parallel to each other. The bottom plate 121 of the first housing 120, the two side plates 122, and the second housing 130 together form the receiving cavity 110.

[0080] The shielding coating 20 is disposed on the side of the bottom plate 121 of the first housing 120 facing away from the second housing 130, the two side plates 122 facing away from the bottom plate 121, and the side of the second housing 130 facing away from the bottom plate 121 of the first housing 120.

[0081] The electroplating process generates high temperatures. To prevent the main body 10 from deforming at high temperatures, in this embodiment, the main body 10 also includes reinforcing ribs 140, which are located on the inner surface of the main body 10.

[0082] By setting reinforcing ribs 140 on the inner surface of the main body 10, the structural strength of the main body 10 can be effectively improved, which is conducive to covering the shielding coating 20 on the outer surface of the main body 10. On the other hand, setting the reinforcing ribs 140 on the inner surface of the main body 10 also ensures that the reinforcing ribs 140 will not affect the shielding coating 20 covering the outer surface of the main body 10.

[0083] In this embodiment, the first reinforcing rib 140 is located on the side of the first housing 120 facing the second housing 130, and the second reinforcing rib 140 is located on the side of the second housing 130 facing the first housing 120.

[0084] In the above implementation, the first reinforcing rib 140 is located on the bottom plate 121 of the first housing 120, while the second reinforcing rib 140 is located on the second housing 130. This design allows the reinforcing rib 140 to reinforce both the first housing 120 and the second housing 130. Furthermore, since the first reinforcing rib 140 faces the second housing 130, and the second reinforcing rib 140 faces the first housing 120, the first and second reinforcing ribs 140 are arranged opposite each other, which helps to improve the overall structural strength of the main body 10.

[0085] In other embodiments, the reinforcing rib 140 also has a third portion, which is located on the side of the side plate 122 of the first housing 120 facing the bottom plate 121.

[0086] This design effectively improves the structural strength of the first shell 120.

[0087] For example, the reinforcing rib 140 includes a transverse rib 141 and a longitudinal rib 142. The transverse rib 141 extends along the length direction of the main body 10, and the longitudinal rib 142 extends along the width direction of the main body 10. The transverse rib 141 and the longitudinal rib 142 are interlaced and arranged perpendicularly to each other.

[0088] The staggered arrangement of transverse ribs 141 and longitudinal ribs 142 effectively ensures the structural reinforcement effect of the reinforcing ribs 140 on the main body 10.

[0089] See also Figure 4 and Figure 6 In this embodiment, the first housing 120 and the second housing 130 are detachably connected.

[0090] In some examples, the main body 10 also includes a mounting base 150 and a first connector 160, wherein the mounting base 150 is connected to the first housing 120, and the first connector 160 passes through the second housing 130 and is inserted into the mounting base 150.

[0091] Through the above design, the first housing 120 and the second housing 130 are connected using the mounting base 150 and the first connector 160. The first housing 120 and the second housing 130 can be separated by disassembling the first connector 160. In this way, a detachable connection between the first housing 120 and the second housing 130 is achieved.

[0092] Exemplarily, the mounting base 150 includes a base body 151 and a second connector 152. The base body 151 is located at the outer edge of the first housing 120 and is connected to the first housing 120. The base body 151 has a groove 153, the opening of which faces the second housing 130. The second connector 152 is located within the groove 153, spaced apart from the outer edge of the first housing 120, and is connected to the first connector 160.

[0093] In the above implementation, the mounting base 150 provides a mounting foundation for the second connector 152. Since the groove 153 faces the second housing 130, the second connector 152 located in the groove 153 also faces the second housing 130, thus facilitating connection with the first connector 160. The second connector 152 is then used to connect with the first connector 160, thereby realizing the connection between the first housing 120 and the second housing 130.

[0094] For example, the seat 151 is located on the first side 1211 and the third side 1213 of the base plate 121.

[0095] The base 151 is a cylindrical structure. The groove 153 is located at one end of the base 151, and the other end of the base 151 is connected to the base plate 121. The outer side of the base 151 is connected to the side plate 122.

[0096] For example, the first connector 160 is a screw, the second connector 152 is a nut, the screw shank is threadedly connected to the nut, and the screw nut abuts against the side of the second housing 130 facing away from the first housing 120.

[0097] For example, the nut portion of the screw is fixed to the side of the second housing 130 facing away from the first housing 120 by heat riveting.

[0098] During the hot riveting process, the first connector 160 generates a high temperature, which may cause bulges to appear on the outer edge of the adjacent first housing 120. To prevent bulges on the first housing 120 from affecting the shielding coating 20, the second connector 152 has a gap d between itself and the outer edge of the first housing 120 (see...). Figure 7 , Figure 7 This is a schematic diagram of the installation of the second connector. Figure 7 perspective and Figure 5 (The perspective is consistent), thus allowing a certain margin for the shrinkage of groove 153.

[0099] For example, the gap d is 0.2 mm to 1 mm.

[0100] Within the aforementioned gap range, bulges on the outer edge of the first housing 120 can be effectively avoided.

[0101] In other examples, the body 10 also includes a first snap-fit ​​and a second snap-fit, one of which is connected to the first housing 120, and the other of which is connected to the second housing 130, and the first snap-fit ​​and the second snap-fit ​​are snapped together.

[0102] The first housing 120 and the second housing 130 can also be detachably connected by the interlocking of the first and second snap-fit ​​components.

[0103] For example, the first snap-fit ​​component is a buckle, and the second snap-fit ​​component is a slot.

[0104] Of course, if the main body 10 includes the first snap-fit ​​component and the second snap-fit ​​component, then the first connector 160 and the mounting base 150 can be omitted.

[0105] In other embodiments, to save costs, the first housing 120 and the second housing 130 may be fixedly connected.

[0106] For example, the first housing 120 and the second housing 130 are connected by self-tapping screws, with the screw portion of the self-tapping screw passing through the second housing 130 and the first housing 120 in sequence, so that the first housing 120 and the second housing 130 are connected together.

[0107] In this embodiment, the first housing 120 further includes an end plate 123, which is connected to the second side 1212 of the bottom plate 121 and the two side plates 122 respectively, and the end plate 123 is perpendicular to the bottom plate 121 and the two side plates 122 respectively.

[0108] The end plate 123 has a plug notch 125 for plugging in electronic devices.

[0109] In this embodiment, the first housing 120 further includes a plurality of partition columns 124, each partition column 124 being arranged sequentially at intervals along the fourth side 1214 of the base plate 121, and one end of each partition column 124 being connected to the fourth side 1214 of the base plate 121, and the other end of each partition column 124 being in contact with the second housing 130.

[0110] There is a plug-in through hole 126 between two adjacent separator posts 124, which is used to plug in electronic devices.

[0111] In this embodiment, the shielding coating 20 is disposed on the side of the partition post 124 of the first housing 120 facing away from the end plate 123, and on the side of the end plate 123 of the first housing 120 facing away from the partition post 124.

[0112] In this embodiment, the second housing 130 has a base 131 on the side facing the first housing 120. The base 131 corresponds one-to-one with the partition post 124, and each base 131 abuts against the end of the corresponding partition post 124.

[0113] The tight abutment between the base 131 and the partition post 124 improves the assembly stability between the first housing 120 and the second housing 130, and avoids unnecessary shaking at the partition post 124.

[0114] In other embodiments, each base 131 is positioned and assembled with the end of the corresponding partition post 124 by means of pins and holes. Alternatively, each base 131 is fixedly connected with the end of the corresponding partition post 124 by means of screws and screw holes.

[0115] The following is a brief introduction to the assembly method of optoelectronic equipment:

[0116] First, the first housing 120 and the second housing 130 are electroplated to form a shielding coating 20.

[0117] Then, electronic components are arranged inside the first housing 120.

[0118] Next, the second connector 152 is placed in the groove 153 of the base 151.

[0119] Finally, the second housing 130 is assembled onto the first housing 120 through the cooperation between the first connector 160 and the second connector 152, thereby completing the assembly of the optoelectronic device.

[0120] The optoelectronic device provided in this application embodiment can meet EMC requirements and the dual 85 reliability test requirements in telecommunications applications. The dual 85 test refers to an aging test performed on the optoelectronic device under environmental conditions set at 85°C and 85% humidity.

[0121] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” “third,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising” or “including” and similar terms mean that the element or object preceding “comprising” or “including” encompasses the element or object listed following “comprising” or “including” and its equivalents, and do not exclude other elements or objects. The terms “connected” or “linked” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” “right,” etc., are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0122] The above specific embodiments further illustrate the purpose, technical solution and beneficial effects of this application. It should be understood that the above are only specific embodiments of this application and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solution of this application should be included within the scope of protection of this application.

Claims

1. A casing, characterized in that, include: The main body (10) has an internal cavity (110). The surface of the main body (10) that contacts the cavity (110) is the inner surface, and the other surfaces of the main body (10) other than the inner surface are the outer surfaces. A shielding coating (20) is used to shield electromagnetic signals, and the shielding coating (20) covers the outer surface of the body (10).

2. The outer casing according to claim 1, characterized in that, The main body (10) is a non-metallic structural component; The shielding coating (20) is a metal film.

3. The outer casing according to claim 1 or 2, characterized in that, The main body (10) includes a first shell (120) and a second shell (130); The first housing (120) and the second housing (130) are connected to form the receiving cavity (110); A portion of the shielding coating (20) is located in the first housing (120), and another portion of the shielding coating (20) is located in the second housing (130).

4. The outer casing according to claim 3, characterized in that, The main body (10) also includes reinforcing ribs (140); The first part of the reinforcing rib (140) is located on the side of the first housing (120) facing the second housing (130), and the second part of the reinforcing rib (140) is located on the side of the second housing (130) facing the first housing (120).

5. The outer casing according to claim 3, characterized in that, The main body (10) also includes a mounting base (150) and a first connector (160); The mounting base (150) is connected to the first housing (120); The first connector (160) passes through the second housing (130) and is inserted into the mounting base (150).

6. The outer casing according to claim 5, characterized in that, The mounting base (150) includes a base body (151) and a second connector (152); The seat (151) is located on the outer edge of the first housing (120) and is connected to the first housing (120). The seat (151) has a groove (153) with the opening of the groove (153) facing the second housing (130). The second connector (152) is located in the groove (153), and the second connector (152) is spaced apart from the outer edge of the first housing (120) where it is located. The second connector (152) is connected to the first connector (160).

7. The outer casing according to claim 3, characterized in that, The main body (10) also includes a first snap-fit ​​component and a second snap-fit ​​component; One of the first snap-fit ​​and the second snap-fit ​​is connected to the first housing (120), and the other of the first snap-fit ​​and the second snap-fit ​​is connected to the second housing (130). The first snap-fit ​​and the second snap-fit ​​are snapped together.

8. The outer casing according to claim 1 or 2, characterized in that, The thickness of the shielding coating (20) is 10μm to 100μm.

9. The outer casing according to claim 1 or 2, characterized in that, The outer surface of the main body (10) has etched texture.

10. A photoelectric device, characterized in that, Includes a housing (100) and electronic components (200); The outer casing (100) is the outer casing as described in any one of claims 1 to 9; The electronic device (200) is at least partially located within the accommodating cavity (110) of the housing (100).

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