Housing components

Abstract

The present invention discloses a housing assembly, which is used to install an optical module. The housing assembly includes a base and an upper cover, wherein the base has an installation groove for installing the optical module. The upper cover is covered on the base and covers the notch of the installation groove. The upper cover is provided with a protrusion convexly toward the installation groove, and the protrusion and the base form a side wall of the installation groove in a sealed abutment. The present invention is used to solve the technical problem that the electromagnetic interference of the optical module is greatly affected.

Description

Technical Field

[0001] The present invention relates to the technical field of optical modules, and in particular to a housing assembly. Background Art

[0002] Optical modules are important components in optical communication equipment. They are used for photoelectric conversion so that electrical signals can be transmitted in the form of light in optical fibers. Optical signals in optical fibers can also be converted into electrical signals and received by signal equipment.

[0003] With the increasing demand for optical communication equipment, higher requirements are placed on the stability of optical modules. The electromagnetic interference (EMI) of optical modules may have a great impact on the working performance. The higher the transmission rate of the optical module, the shorter its electromagnetic wavelength is, and it is easier to radiate outward from the gap between the upper cover and the base of the optical module, thus interfering with the optical communication equipment. Summary of the invention

[0004] The main purpose of the present invention is to provide a housing assembly, aiming to solve the technical problem that the electromagnetic interference of an optical module is greatly affected.

[0005] To achieve the above object, the present invention provides a housing assembly for installing an optical module, wherein the housing assembly comprises:

[0006] A base having a mounting slot for mounting the optical module;

[0007] The upper cover is covered on the base and covers the notch of the installation slot. The upper cover is provided with a protrusion convexly toward the installation slot. The protrusion and the base form a sealing abutment on the side wall of the installation slot.

[0008] Optionally, the protrusion includes a first protruding step and a second protruding step, the base has a bottom plate and a first side plate and a second side plate which are arranged on one side of the bottom plate and enclose a mounting groove for mounting the optical module, the side wall of the first protruding step abuts against the side wall of the first side plate, and the side wall of the second protruding step abuts against the side wall of the second side plate.

[0009] Optionally, the protrusion also includes a third protruding step and a fourth protruding step, the base has a bottom plate and a third side plate and a fourth side plate which are arranged on one side of the bottom plate and enclose a mounting groove for installing the optical module, the side wall of the third protruding step abuts against the side wall of the third side plate, and the side wall of the fourth protruding step abuts against the side wall of the fourth side plate.

[0010] Optionally, the first protruding step, the second protruding step, the third protruding step and the fourth protruding step of the protruding portion are enclosed and connected to form a limiting cavity with a first length and a first width, and the first side plate, the second side plate, the third side plate and the fourth side plate are enclosed and connected to form a mounting groove with a second length and a second width, the first length is equal to the length of the first side plate, and the first width is equal to the length of the third side plate;

[0011] Alternatively, the length of the first protruding step is equal to the length of the mounting groove, and the length of the third protruding step is equal to the width of the mounting groove.

[0012] Optionally, a groove is provided on the long side of the protrusion;

[0013] Alternatively, the bottom surface of the protrusion is provided with a groove, and the mounting groove is provided with a step abutting against the bottom surface of the protrusion.

[0014] Optionally, the cross-section of the groove is circular or square.

[0015] Optionally, the depth of the groove is 0.15 mm to 0.35 mm; when the groove is a square groove, the diameter of the groove is 0.3 to 0.5 mm; when the groove is a round groove, the diameter of the groove is 0.3 to 0.5 mm.

[0016] Optionally, a first fixing position is provided on the upper cover, and a second fixing position is provided on the base, and when the upper cover is closed on the shell, the first fixing position and the second fixing position are connected via a fixing member.

[0017] Optionally, the housing assembly further comprises a spring sheet, and when the upper cover is closed on the base, the spring sheet is arranged around the upper cover and the base.

[0018] Optionally, a metal finger is provided on the reed.

[0019] The housing assembly of the present invention includes a base and an upper cover. The housing assembly is used to install an optical module. The base has an installation groove for installing the optical module. The upper cover is covered on the base and covers the notch of the installation groove. The upper cover is provided with a protrusion convexly toward the installation groove. The protrusion and the base form a sealing abutment of the side wall of the installation groove. The protrusion and the base form a sealing abutment of the side wall of the installation groove, so that the optical module can be sealed in the installation groove, thereby greatly reducing the possibility of electromagnetic radiation of the optical module, thereby improving the electromagnetic interference performance of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 1 It is a structural schematic diagram of the housing assembly of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the housing assembly of the present invention;

[0023] Figure 3 It is a schematic structural diagram of the housing assembly of the present invention.

[0024] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. If there are descriptions of "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0026] The present invention provides a housing assembly to solve the technical problem that the electromagnetic interference of an optical module is greatly affected.

[0027] like Figure 1 and Figure 2As shown, in one embodiment, the housing assembly is used to install an optical module, which is a component of an optical communication device. The optical module is a device that converts an optical signal into an electrical signal, or converts an electrical signal into an optical signal. During the conversion process, due to the increasing transmission rate requirements of the optical module, its electromagnetic wavelength will become shorter and shorter as the transmission rate increases. At this time, the electromagnetic waves radiated outward by the optical module are very likely to affect the working performance of the entire optical communication device. In this application, a housing assembly is proposed to solve the problem of large electromagnetic interference caused by the improvement of the performance of the optical module. The housing assembly includes a base 10 and an upper cover 20, wherein the base 10 has a mounting groove 103 for mounting the optical module. The upper cover 20 covers the base 10 and covers the notch of the mounting groove 103, thereby reducing the electromagnetic waves radiated outward by the optical module. The upper cover 20 is provided with a protrusion 201 protruding toward the mounting groove 103, and the protrusion 201 and the base 10 form a side wall sealing abutment of the mounting groove 103. By sealingly abutting the side wall of the mounting groove 103 formed by the protrusion 201 and the base 10, the optical module can be sealed in the mounting groove 103, while increasing the stability and sealing degree of the sealing structure formed after the upper cover 20 of the housing assembly is covered on the base 10. In addition, the electromagnetic waves radiated outward through the gap between the base 10 and the upper cover 20 are further reduced. At this time, the electromagnetic waves radiated outward are blocked by the protrusion 201. The possibility of electromagnetic radiation outward of the optical module is greatly reduced, and the electromagnetic interference performance of the entire system is improved. Thereby reducing the electromagnetic interference of the optical module to external components. Solve the technical problem that the electromagnetic interference of the optical module has a large impact.

[0028] In one embodiment, if Figure 3 As shown, the protrusion 201 includes a first protruding step 2011 and a second protruding step 2012, the base 10 has a bottom plate and a first side plate 1021 and a second side plate 1022 which are arranged on one side of the bottom plate and enclose a mounting groove 103 for mounting the optical module, the side wall of the first protruding step 2011 abuts against the side wall of the first side plate 1021, and the side wall of the second protruding step 2012 abuts against the side wall of the second side plate 1022.

[0029] Among them, by sealing and abutting the side wall of the mounting groove 103 formed by the first protruding step 2011 and the second protruding step 2012 with the base 10, the optical module can be sealed in the mounting groove 103, and at the same time, the stability and sealing degree of the sealing structure formed after the upper cover 20 of the housing assembly is covered on the base 10 are increased. In addition, the electromagnetic waves radiated outward through the gap between the base 10 and the upper cover 20 are further reduced. At this time, the electromagnetic waves radiated outward are blocked by the protrusion 201. The possibility of electromagnetic radiation outward of the optical module is greatly reduced, and the electromagnetic interference performance of the entire system is improved. Thereby reducing the electromagnetic interference of the optical module to external components. Solve the technical problem that the electromagnetic interference of the optical module has a large impact.

[0030] In one embodiment, if Figure 3 As shown, the protrusion 201 also includes a third protruding step 2013 and a fourth protruding step 2014, the base 10 has a bottom plate and a third side plate 1023 and a fourth side plate 1024 which are arranged on one side of the bottom plate and enclose a mounting groove 103 for mounting the optical module, the side wall of the third protruding step 2013 abuts against the side wall of the third side plate 1023, and the side wall of the fourth protruding step 2014 abuts against the side wall of the fourth side plate 1024.

[0031] Among them, by sealingly abutting the side wall of the mounting groove 103 formed by the third protruding step 2013 and the fourth protruding step 2014 with the base 10, the optical module can be sealed in the mounting groove 103, and the stability and sealing degree of the sealing structure formed after the upper cover 20 of the housing assembly is covered on the base 10 are increased. In addition, the electromagnetic waves radiated outward through the gap between the base 10 and the upper cover 20 are further reduced. At this time, the electromagnetic waves radiated outward are blocked by the protruding portion 201. The possibility of electromagnetic radiation outward of the optical module is greatly reduced.

[0032] In one embodiment, the first protruding step 2011, the second protruding step 2012, the third protruding step 2013 and the fourth protruding step 2014 of the protrusion 201 are enclosed and connected to form a limiting cavity having a first length and a first width, and the first side plate 1021, the second side plate 1022, the third side plate 1023 and the fourth side plate 1024 are enclosed and connected to form a mounting groove 103 having a second length and a second width, the first length is equal to the length of the first side plate 1021, and the first width is equal to the length of the third side plate 1023.

[0033] The first protruding step 2011, the second protruding step 2012, the third protruding step 2013 and the fourth protruding step 2014 are connected to form the protruding portion 201. When the first protruding step 2011, the second protruding step 2012, the third protruding step 2013 and the fourth protruding step 2014 are connected to form a limiting cavity with a first length and a first width, at the height of the limiting cavity, the first length of the limiting cavity is equal to the length of the first side plate 1021, the first width of the limiting cavity is equal to the length of the third side plate 1023, the first length of the limiting cavity is equal to the length of the second side plate 1022, the first width of the limiting cavity is equal to the length of the fourth side plate 1024, and the protruding portion 201 is connected to form the first protruding step 2011. The first protruding step 2011, the second protruding step 2012, the third protruding step 2013 and the fourth protruding step 2014 are enclosed at the outer periphery of the first side plate 1021, the second side plate 1022, the third side plate 1023 and the fourth side plate 1024, that is, at the height of the limiting cavity, and are in contact with the side surfaces of the first side plate 1021, the second side plate 1022, the third side plate 1023 and the fourth side plate 1024, so that the optical module can be sealed in the housing assembly, thereby minimizing electromagnetic radiation and reducing electromagnetic interference.

[0034] Optionally, the first protruding step 2011, the second protruding step 2012, the third protruding step 2013 and the fourth protruding step 2014 can be produced by an integrated molding process, which can further improve the stability and sealing of the structure.

[0035] Optionally, the first side panel 1021 , the second side panel 1022 , the third side panel 1023 and the fourth side panel 1024 are produced by an integrated molding process, which can further improve the stability and sealing of the structure.

[0036] In one embodiment, the first protruding step 2011, the second protruding step 2012, the third protruding step 2013 and the fourth protruding step 2014 are enclosed and connected to form a protruding portion 201. The first protruding step 2011, the second protruding step 2012, the third protruding step 2013 and the fourth protruding step 2014 of the protruding portion 201 are enclosed and connected to form a limiting cavity with a first length and a first width, and the first side plate 1021, the second side plate 1022, the third side plate 1023 and the fourth side plate 1024 are enclosed and connected to form a mounting groove 103 with a second length and a second width, and the length of the first protruding step 2011 is equal to the length of the mounting groove 103, and the length of the third protruding step 2013 is equal to the width of the mounting groove 103.

[0037] The first protruding step 2011, the second protruding step 2012, the third protruding step 2013 and the fourth protruding step 2014 are connected to form the protruding portion 201. When the first protruding step 2011, the second protruding step 2012, the third protruding step 2013 and the fourth protruding step 2014 are connected to form a limiting cavity with a first length and a first width, at the height of the limiting cavity, the length of the first protruding step 2011 is equal to the length of the mounting groove 103, the length of the third protruding step 2013 is equal to the width of the mounting groove 103, the length of the second protruding step 2012 is equal to the length of the mounting groove 103, the length of the fourth protruding step 2014 is equal to the width of the mounting groove 103, and the protruding portion 201 is equal to the width of the mounting groove 103. The inner circumference of the first side plate 1021, the second side plate 1022, the third side plate 1023 and the fourth side plate 1024 is enclosed, that is, the circumference is equal to the circumference of the mounting groove 103, that is, at the height of the limiting cavity, the first protruding step 2011, the second protruding step 2012, the third protruding step 2013 and the fourth protruding step 2014 are in contact with the side surfaces of the first side plate 1021, the second side plate 1022, the third side plate 1023 and the fourth side plate 1024, so that the optical module can be sealed in the housing assembly, and electromagnetic radiation is minimized to the greatest extent, reducing electromagnetic interference.

[0038] In one embodiment, in order to facilitate production, storage and installation of the optical module, the first protruding step 2011 , the second protruding step 2012 , the third protruding step 2013 and the fourth protruding step 2014 are rectangular parallelepiped structures.

[0039] In one embodiment, a groove 203 is disposed on a long side surface of the protrusion 201 .

[0040] When glue is used to connect the upper cover 20 and the base 10, part of the glue will penetrate into the groove 203, increasing the surface area of ​​the glue in contact with the upper cover 20, thereby enhancing the adhesiveness of the glue to the upper cover 20, preventing part of the glue from not being tightly attached to the upper cover 20, forming a gap between the upper cover 20 and the base 10, and reducing electromagnetic interference. In addition, by allowing part of the glue to penetrate into the groove 203, the thickness of the glue can be reduced, thereby reducing the thickness of the optical module as a whole.

[0041] In one embodiment, a groove 203 is disposed on the bottom surface of the protrusion 201 .

[0042] At this time, if a step is provided in the installation cavity that abuts against the bottom surface of the protrusion 201, when glue is used to connect the upper cover 20 and the base 10 on the bottom surface of the protrusion 201, part of the glue will penetrate into the groove 203, increasing the surface area of ​​the glue in contact with the upper cover 20, thereby enhancing the adhesion of the glue to the upper cover 20, preventing part of the glue from not being tightly attached to the upper cover 20, forming a gap between the upper cover 20 and the base 10, and reducing electromagnetic interference. In addition, by infiltrating part of the glue into the groove 203, the thickness of the glue can be reduced, thereby reducing the thickness of the optical module as a whole.

[0043] In one embodiment, in order to facilitate manufacturing, the cross section of the groove 203 is circular or square.

[0044] In one embodiment, in order to ensure the strength of the component and improve its sealing performance, the depth of the groove 203 is 0.15 mm to 0.35 mm.

[0045] In one embodiment, in order to ensure the strength of the component while improving its sealing performance, when the groove 203 is a square groove, the diameter of the groove 203 is 0.3~0.5mm; when the groove 203 is a round groove, the diameter of the groove 203 is 0.3~0.5mm.

[0046] In one embodiment, a first fixing position 204 is disposed on the upper cover 20, and a second fixing position 105 is disposed on the base 10. When the upper cover 20 is covered on the housing, the first fixing position 204 and the second fixing position 105 are connected via a fixing member.

[0047] Among them, the first fixing position 204 can be a screw hole for installing screws, and the second fixing position 105 can be a screw hole for installing screws. When the upper cover 20 and the base 10 are covered, the first fixing position 204 and the second fixing position 105 overlap as a fixing position, and the sealing performance of the upper cover 20 and the base 10 can be further improved by fixing parts (such as screws) to reduce electromagnetic interference.

[0048] In one embodiment, the housing assembly further includes a spring 104 . When the upper cover 20 is covered on the base 10 , the spring 104 is disposed around the upper cover 20 and the base 10 .

[0049] The spring 104 can further fix the relative positions of the upper cover 20 and the base 10 to reduce electromagnetic interference.

[0050] In one embodiment, the spring 104 is provided with metal finger connection nodes as input and output terminals of the charge and discharge circuit.

[0051] At this time, the metal fingers on the reed 104 can guide the static electricity on the upper cover 20 and the base 10 to the device installed with the optical module, thereby reducing the impact of static electricity on the performance of the optical module.

[0052] The above are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A housing assembly for mounting an optical module, characterized in that: The housing assembly comprises: A base having a mounting slot for mounting the optical module; An upper cover, which covers the base and covers the notch of the installation slot, wherein the upper cover is provided with a protrusion convexly toward the installation slot, and the protrusion and the base form a sealing abutment with the side wall of the installation slot; The protrusion includes a first protruding step and a second protruding step, the base includes a bottom plate and a first side plate and a second side plate arranged on one side of the bottom plate and enclosing a mounting groove for mounting the optical module, the side wall of the first protruding step abuts against the side wall of the first side plate, and the side wall of the second protruding step abuts against the side wall of the second side plate; The protruding portion further includes a third protruding step and a fourth protruding step, the base includes a bottom plate and a third side plate and a fourth side plate which are arranged on one side of the bottom plate and enclose a mounting groove for mounting the optical module, the side wall of the third protruding step abuts against the side wall of the third side plate, and the side wall of the fourth protruding step abuts against the side wall of the fourth side plate; The first protruding step, the second protruding step, the third protruding step and the fourth protruding step of the protruding portion are connected to form a limiting cavity with a first length and a first width, and the first side plate, the second side plate, the third side plate and the fourth side plate are connected to form a mounting groove with a second length and a second width, the first length is equal to the length of the first side plate, and the first width is equal to the length of the third side plate; Or, the length of the first protruding step is equal to the length of the mounting groove, and the length of the third protruding step is equal to the width of the mounting groove; The long side surface of the protrusion is provided with a groove; The bottom surface of the protrusion is provided with a groove, and the mounting groove is provided with a step abutting against the bottom surface of the protrusion.

2. The housing assembly according to claim 1, wherein: The cross section of the groove is circular or square.

3. The housing assembly according to claim 1, wherein: The depth of the groove is 0.15 mm to 0.35 mm; when the groove is a square groove, the diameter of the groove is 0.3 to 0.5 mm; when the groove is a round groove, the diameter of the groove is 0.3 to 0.5 mm.

4. The housing assembly according to claim 1, wherein: The upper cover is provided with a first fixing position, and the base is provided with a second fixing position. When the upper cover is closed on the shell, the first fixing position and the second fixing position are connected via a fixing member.

5. The housing assembly according to any one of claims 1 to 4, characterized in that: The housing assembly further comprises a spring sheet, and when the upper cover is covered on the base, the spring sheet is arranged around the upper cover and the base.

6. The housing assembly according to claim 5, characterized in that: The reed is provided with a metal finger piece.

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