TWM645651U - Rail mounting assembly and assembly kit - Google Patents

Abstract

A rail mounting assembly for supporting a pair of electrical components on a case of a server is disclosed. The assembly includes a first mounting structure for receiving a first electrical component; a second mounting structure for receiving a second electrical component; and a single rail fixed between the first mounting structure and the second mounting structure, the single rail having an I-shaped cross-section. The single rail includes a first groove configured to engage with the first electrical component when the first electrical component is mounted to the first mounting structure, and a second groove configured to engage with the second electrical component when the second electrical component is mounted to the second mounting structure. A distance between the first electrical component engaged with the first groove and the second electrical component engaged with the second groove is less than 5mm, preferably equal to or less than 4mm.

Description

Rail mounting components and assembly kits

The present disclosure generally relates to a rail mounting assembly for supporting a pair of electronic components on a printed circuit board. More precisely, it relates to a single track having an I-shaped cross-section and a pair of grooves configured to engage the pair of electronic components.

A server is a special computer system that includes several electronic components and combines these electronic components into a single unit through a server case. Usually there will be a motherboard similar to a motherboard in the server, including a central processing unit (CPU), memory (such as the third generation double data rate synchronous dynamic random access memory (DDR3), fourth generation Generation of double data rate synchronous dynamic random access memory (DDR4), dynamic random access memory (DRAM) slots, high-speed peripheral component interconnect (Peripheral Computer Interconnect express, PCIe) slots and connections to other components Connectors, such as hard drives, power supplies, or other peripherals (such as universal serial bus (USB) ports, local area network (LAN) ports, or other input/output ports).

Some electronic components or modules (such as Open Compute Project (OCP) cards and data center-ready secure control modules (DC-SCM)) will be installed in the server. 1A to 1C illustrate a conventional rail mounting assembly 100 for joining electronic components 300 (eg, circuit boards/modules). Referring to FIG. 1B , conventionally speaking, the existing rail mounting assembly 100 includes metal sheets 101 and 102 , each of which includes a track 111 and 112 respectively. Referring to FIG. 1A , each track 111 , 112 has a U-shaped opening or groove 110 , 120 for receiving the electronic component 300 . For example, an existing rail mounting assembly 100 includes a first rail 111 and a matching second rail 112 facing each other, as shown in Figure 1B. Generally speaking, the existing rail mounting assembly 100 is fixed to a server casing by a fastening mechanism, such as rivets. The electronic component 300 is assembled on the rails 111 and 112 by being inserted therein, as shown in FIG. 1C .

Figures 2A and 2B illustrate another existing rail mounting assembly 400 having a first rail 401 that is not attached to a sheet metal and a matching second rail 402. Figure 2A shows a pair of rails 401, 402 on a motherboard/PCB that is not fixed in the server, and Figure 2B shows a PCB directly fixed in a casing that is fixed to the server. Generally speaking, the pair of rails 401 and 402 on the 500 are directly fixed on the printed circuit board 500 through a fastener mechanism 410, such as rivets or screws. As shown in Figure 2B, the pair of rails 401, 402 fixed on the printed circuit board 500 receive an electronic component 600, such as a circuit board or module.

Referring to Figures 3A and 3B, when more than one electronic component 300, such as two electronic components 300-1 and 300-2, need to be installed, in addition to the tracks 111 and 112, additional tracks 113 and 112 must be added. 114 to receive electronic components 300-1, 300-2. One track 113 is attached to one side of the metal foil 103 and another track 114 is attached to the other side of the metal foil 103 . Therefore, in order to install the rails 111, 112, 113, 114 and the electronic components 300-1, 300-2, additional space is required on the casing of the server. Due to the limited space of the housing, the space required to install multiple electronic components 300-1, 300-2 needs to be minimized in order to accommodate more additional components.

However, the structure of the existing rail mounting components 100 and 400 is designed such that a wide gap will appear between the two mounted electronic components 300-1 and 300-2. For example, existing rail mounting assembly 100 structures include additional intermediate rails 113, 114. The existing rail mounting component 100 includes four separate rails 111, 112, 113, 114 fixed on the server housing through metal sheets 101, 102, 103, placed between one metal sheet 101 and another metal sheet 102 The middle metal sheet 103 is not designed to have only one track 111, 112 like the metal sheets 101 and 102, but is designed to have two tracks 113, 114. The tracks 113, 114 are attached to the same piece of metal sheet. 103, so that the metal sheet 103 is located between the two tracks 113, 114, and the tracks 113, 114 are located between the tracks 111, 112. The track 113 faces the track 111, and the track 114 faces the track 112. Therefore, one of the electronic components 300-1 is installed by being received by the pair of tracks 111, 113, and the other electronic component 300-2 is received by the pair of tracks 112. , 114 is received and installed. Refer to Figure 3B. The distance d1 between the electronic components 300-1, 300-2 is affected by the thickness of the metal sheet 103 placed between the rails 113, 114. Generally speaking, the distance d1 in the example of Figure 3B is approximately 5 mm or equal to 5mm.

As another example, the structure of the existing rail mounting assembly 400 is as shown in Figure 4A. The existing rail mounting assembly 400 includes four separate rails 401, 402, 403, 404, which are directly attached to the servo-mounted assembly. The printed circuit board 500 on the device is not fixed through a metal foil. The middle rails 403, 404 have respective openings or grooves 430, 440 facing in opposite directions, the rails 403, 404 being placed between the two outer rails 401, 402. The tracks 403, 404 are in contact with each other or very close to each other. Track 403 faces track 401 and track 404 faces track 402. Therefore, one of the electronic components 300 - 1 is mounted by being received by the pair of rails 401 and 403 , and the other electronic component 300 - 2 is mounted by being received by the pair of rails 402 and 404 . Refer to Figure 4B. In this example, the distance (d2) between the electronic components 300-1, 300-2 is affected by the gap (g) created between the two rails 403, 404. Generally speaking, the distance d2 in the example of Figure 4B is approximately 15 mm or equal to 15 mm.

The above discussed distances d1, d2 in the middle track can be reduced if the middle track (113/114, 403/404) is designed more efficiently. Therefore, there is a need for a rail mounting assembly designed to reduce the distance between multiple circuit boards or modules mounted therein to less than 5 mm. There is also a need for a rail mounting assembly with a simpler design that allows multiple circuit boards or modules to be installed more easily and that reduces the cost of multiple components of existing technologies.

In view of the above-mentioned problems of conventional rail mounting assemblies, this application discloses a rail mounting assembly that contains a single rail with an I-shaped cross-section and can reduce the space required for mounting a pair of electronic components on a printed circuit board.

According to one aspect of the present disclosure, a rail mounting assembly for supporting a pair of electronic components on a housing of a server is disclosed. According to some embodiments, a rail mounting assembly includes a first mounting structure for receiving a first electronic component of the pair of electronic components and a second mounting structure for receiving a second electronic component of the pair of electronic components. The first mounting structure is configured to allow electrical coupling of the first electronic component to a printed circuit board secured to the server, and the second mounting structure is configured to allow electrical coupling of the second electronic component to the printed circuit board. The rail mounting assembly further includes a single rail fixed between the first mounting structure and the second mounting structure. The unitary rail has an I-shaped cross-section and includes an extended rail body having a top member, a bottom member and an intermediate member connecting the top member and the bottom member. A first groove is formed on a first side of the intermediate member between the top member and the bottom member, and the first groove is configured to engage the first electronic component when the first electronic component is secured to the first mounting structure. Still further, a second groove is formed on the second side of the intermediate member between the top member and the bottom member. The second side is the opposite side of the first side. The second groove is configured to engage the second electronic component when the second electronic component is fixed to the second mounting structure.

According to another aspect of the assembly, the width of the intermediate member or the distance between the first side and the second side of the intermediate member is less than or equal to 4 millimeters. In some embodiments, the width of the top member is the same as the width of the bottom member. In some embodiments, the width of the top or bottom member is greater than the width of the middle member. In some embodiments, the top member is the same length as the bottom member. In some embodiments, the distance between the first electronic component engaged with the first groove and the second electronic component engaged with the second groove is less than or equal to 4 millimeters.

For example, the pair of electronic components includes an add-on board/module, a network card/module, or an Open Compute Project (OCP) 3.0/Data Center Ready Security Control Module (DC-SCM)/mezzanine card/module .

According to another aspect of the present assembly, at least one receiving portion configured to receive at least one fastener is formed on the base member. In some embodiments, the number of at least one receiving portion is one, two, or three. In some embodiments, at least one receiving portion has threads, and at least one fastener inserted into the at least one receiving portion has corresponding threads. For example, at least one fastener includes a rivet or screw. In some embodiments, at least one fastener penetrates the fixed housing and is inserted into at least one receiving portion.

According to another aspect of the component, the single track is made of plastic material, such as polyamide (PA), polycarbonate (PC), acrylonitrile, butadiene, styrene copolymer (Acrylonitrile Butadiene Styrene, ABS), acetal (POM) and/or polypropylene (PP). According to other aspects of the disclosure, an assembly kit is also included in the disclosure. According to some embodiments, an assembly kit includes a printed circuit board; a pair of electronic components including a first electronic component and a second electronic component; and a rail mounting assembly for supporting the pair of electronic components on a housing of a server. In some embodiments, the rail mounting assembly includes a first mounting structure fixed to the housing, the first mounting structure configured to allow electrical coupling of the first electronic component to the printed circuit board. The rail mounting assembly further includes a second mounting structure fixed on the housing. The second mounting structure is configured to allow electrical coupling between the second electronic component and the printed circuit board. The rail mounting assembly further includes a single rail fixed on the housing and between the first mounting structure and the second mounting structure. The unitary rail has an I-shaped cross-section and includes an extended rail body having a top member, a bottom member and an intermediate member connecting the top member and the bottom member. A first channel is formed on a first side of the intermediate member between the top member and the bottom member. The first groove is configured to engage the first electronic component when the first electronic component is fixed to the first mounting structure. A second channel is formed on a second side of the intermediate member, the second side being opposite the first side, between the top member and the bottom member. The second groove is configured to engage the second electronic component when the second electronic component is fixed to the second mounting structure.

According to another aspect of the above assembly kit, at least one through hole is formed on one side of the housing, and at least one receiving portion is formed on the bottom member of the single track. At least one receiving portion is configured to receive at least one fastener that secures the single rail to the housing.

According to another aspect of the above assembly kit, at least one fastener passes through at least one through hole of the housing and is locked into at least one receiving portion of the single track. In some embodiments, the number of at least one receiving portion is one, two, or three. In some embodiments, at least one receiving portion has threads, and at least one fastener inserted into the at least one receiving portion has corresponding threads. For example, at least one fastener includes a rivet or screw.

For example, the pair of electronic components includes an add-on board/module, a network card/module, or an Open Compute Project (OCP) 3.0/Data Center Ready Security Control Module (DC-SCM)/mezzanine card/module .

According to another aspect of the above-described servo, the width of the intermediate member or the distance between the first side and the second side of the intermediate member is less than or equal to 4 mm. According to another aspect of the above-mentioned server, the distance between the first electronic component engaged with the first groove and the second electronic component engaged with the second groove is less than or equal to 4 mm.

A single track 700 according to some embodiments of the present disclosure is shown in Figures 5A and 5B. The single track 700 has an I-shaped cross-section, as shown in Figure 5B. The single track 700 includes an extended rail body having a top member 701 , a bottom member 702 and an intermediate member 703 connecting the top member 701 and the bottom member 702 . A first trench 710 is formed on a first side 704-1 of the intermediate member 703 and the first side 704-1 is between the top member 701 and the bottom member 702. As shown in FIG. 6 , the first groove 710 is configured to engage the first electronic component 300 - 1 . Furthermore, a second groove 720 is formed on the second side 704-2 of the intermediate member 703 and the second side 704-2 is between the top member 701 and the bottom member 702. Second side 704-2 is the opposite side of first side 704-1. The second groove 720 is configured to engage the second electronic component 300-2.

According to some embodiments of the present disclosure, a rail mounting assembly for supporting a pair of electronic components is fixed on the housing 800 of the server, as shown in Figure 7B. According to some embodiments of the present disclosure, the rail mounting assembly includes a first mounting structure 730 for receiving the first electronic component 300-1 of the pair of electronic components and a third mounting structure 730 for receiving the second electronic component 300-2 of the pair of electronic components. 2. Installation structure 740. Refer to Figure 6. The first mounting structure 730 is configured to allow the first electronic component 300-1 to be electrically coupled to a printed circuit board fixed to the housing 800, and the second mounting structure 740 is configured to allow the second electronic component 300-2 to be electrically coupled to the printed circuit board. Electrical coupling of circuit boards. The innovative single rail 700 of the present disclosure is included in the rail mounting assembly to support the pair of electronic components 300-1, 300-2 on the housing 800.

Referring to Figures 6 and 7B, a single track 700 is fixed on the housing 800 and between the first mounting structure 730 and the second mounting structure 740. As shown in Figure 5B, the single track 700 has an I-shaped cross-section. The first groove 710 is configured to engage the first electronic component 300-1 when the first electronic component 300-1 is fixed to the first mounting structure 730. Furthermore, the second groove 720 is configured to engage the second electronic component 300-2 when the second electronic component 300-2 is fixed to the second mounting structure 740.

Referring to Figures 5A and 5B, the width of the intermediate member 703 or the distance between the first side 704-1 and the second side 704-2 of the intermediate member 703 is less than or equal to 4 mm. In some embodiments, the distance between the first side 704-1 and the second side 704-2 of the intermediate member 703 is between about 3.5 millimeters and about 4 millimeters. In some embodiments, the distance between the first side 704-1 and the second side 704-2 of the intermediate member 703 is about 3.5 mm, about 3 mm, or between about 3 mm and about 3.5 mm. In some embodiments, the distance between the first side 704-1 and the second side 704-2 of the intermediate member 703 is less than about 3 millimeters. In some embodiments, the width of top member 701 is the same as the width of bottom member 702 . In some embodiments, the width of the top member 701 or the bottom member 702 is greater than the width of the middle member 703 . In some embodiments, the top member 701 is the same length as the bottom member 702 .

As shown in the example of Figure 6, the distance (d3) between the first electronic component 300-1 engaged with the first groove 710 and the second electronic component 300-2 engaged with the second groove 720 is less than or equal to 4 mm. In some embodiments, the distance (d3) between the first electronic component 300-1 engaged with the first groove 710 and the second electronic component 300-2 engaged with the second groove 720 is between approximately 3.5 mm to approximately 4 mm. In some embodiments, the distance (d3) between the first electronic component 300-1 engaged with the first groove 710 and the second electronic component 300-2 engaged with the second groove 720 is approximately 3.5 mm. , approximately 3 mm or between approximately 3 mm and 3.5 mm. In some embodiments, the distance (d3) between the first electronic component 300-1 engaged with the first groove 710 and the second electronic component 300-2 engaged with the second groove 720 is less than approximately 3 mm. . Therefore, the distance d3 shown in Figure 6 is smaller than d1 and d2 in Figures 3B and 4B.

In some embodiments, the pair of electronic components 300-1, 300-2 includes an add-on board/module, a network card/module, or an Open Compute Project (OCP) 3.0/Data Center Ready Security Control Module/Mezzanine Card/Mod.

Referring to Figures 7A and 7B, in some embodiments, at least one receiving portion 705, 706, 707 configured to receive at least one fastener 930, 931, 932 is formed on the bottom member 702 of the single track 700. For example, the number of at least one receiving part 705/706/707 is one, two or three. In some embodiments, at least one receiving portion 705, 706, 707 has threads, and at least one fastener 930, 931, 932 inserted into at least one receiving portion 705, 706, 707 has corresponding threads. For example, at least one fastener 930, 931, 932 includes a rivet or screw.

Referring to Figure 7B, at least one fastener 930, 931, 932 penetrates the fixed housing 800 and is inserted into at least one receiving portion 705, 706, 707. In some embodiments, the single track 700 is made of plastic material, such as polyamide (PA), polycarbonate (PC), acrylonitrile, butadiene, styrene copolymer (Acrylonitrile Butadiene Styrene, ABS), acetal (POM) and/or polypropylene (PP). However, the material used for the single track 700 is not limited thereto, and the single track 700 can be made of any suitable material.

Referring to Figure 6, according to some aspects of the present disclosure, an assembly kit includes a printed circuit board, a pair of electronic components including a first electronic component 300-1 and a second electronic component 300-2, and a housing for use in a server The body 800 supports the guide rail mounting assembly of the pair of electronic components 300-1, 300-2. According to some embodiments of the present disclosure, the rail mounting assembly includes a first mounting structure 730 fixed on the housing 800, the first mounting structure 730 being configured to allow the first electronic component 300-1 to interface with a printed circuit board mounted within the server. electrical coupling. The rail mounting component of the assembly kit further includes a second mounting structure 740 fixed on the housing 800. The second mounting structure 740 is configured to allow the second electronic component 300-2 to be electrically coupled to the printed circuit board. The rail mounting assembly further includes a single rail 700 fixed on the housing 800 and between the first mounting structure 730 and the second mounting structure 740 .

Referring to Figures 5A and 5B, the single track 700 includes an extended rail body having a top member 701, a bottom member 702, and an intermediate member 703 connecting the top member 701 and the bottom member 702. On the single track 700, a first groove 710 is formed on a first side 704-1 of the intermediate member 703 and the first side 704-1 is between the top member 701 and the bottom member 702. The first groove 710 is configured to engage the first electronic component 300-1 when the first electronic component 300-1 is fixed to the first mounting structure 730. On the single track 700, a second groove 720 is formed on the second side 704-2 of the intermediate member 703 and the second side 704-2 is between the top member 701 and the bottom member 702. The second side 704-2 is the opposite side of the first side 704-1. The second groove 720 is configured to engage the second electronic component 300-2 when the second electronic component 300-2 is fixed to the second mounting structure 740.

Referring to Figure 7B, at least one through hole 801, 802, 803 is formed on one side of the server housing 800. Further, referring to Figures 7A and 7B, at least one receiving portion 705, 706, 707 is formed on a single side. Track 700 is formed on bottom member 702 . At least one receiving portion 705, 706, 707 is configured to receive at least one fastener 930, 931, 932, which secures the single rail 700 to the housing 800. At least one fastener 930, 931, 932 passes through at least one through hole 801, 802, 803 of the housing 800, and is locked into at least one receiving portion 705, 706, 707 of the single track 700. For example, the number of at least one receiving part 705, 706, 707 is one, two or three. However, the number of at least one receiving part 705, 706, 707 is not limited to this and may be greater than three.

In some embodiments, at least one receiving portion 705, 706, 707 has threads, and at least one fastener 930, 931, 932 inserted into at least one receiving portion 705, 706, 707 has corresponding threads. For example, at least one fastener 930, 931, 932 includes a rivet or screw.

For example, the pair of electronic components 300-1, 300-2 includes an add-on board/module, a network card/module, or an Open Compute Project (OCP) 3.0/Data Center Ready Security Control Module/Mezzanine Card/ Mods.

In some embodiments, the width of the intermediate member 703 or the distance between the first side 704-1 and the second side 704-2 of the intermediate member 703 is less than 5 millimeters. In some embodiments, the distance between the first electronic component 300-1 engaged with the first groove 710 and the second electronic component 300-2 engaged with the second groove 720 is less than 5 mm.

In some embodiments, the width of the intermediate member 703 or the distance between the first side 704-1 and the second side 704-2 of the intermediate member 703 is less than or equal to 4 millimeters. In some embodiments, the distance between the first electronic component 300-1 engaged with the first groove 710 and the second electronic component 300-2 engaged with the second groove 720 is less than or equal to 4 millimeters.

Although various embodiments of the present disclosure have been described above, it should be understood that they are presented by way of example only and not limitation. Various changes may be made in accordance with the embodiments disclosed herein without departing from the spirit or scope of the disclosure. Accordingly, the breadth and scope of the present disclosure should not be limited by any of the above-described embodiments. Rather, the scope of the present disclosure should be defined in accordance with the following claims and their equivalents.

100: Guide rail mounting components 101, 102, 103: Metal flakes 110, 120: Groove 111, 112, 113, 114: Orbit 300, 300-1, 300-2: Electronic components 400: Guide rail mounting components 401, 402, 403, 404: Track 410: Fastener mechanism 430, 440: Groove 500:Printed circuit board 600: Electronic components 700:Single track 701:Top component 702: Bottom component 703: Intermediate component 704-1: First side 704-2: Second side 705, 706, 707: Receiving Department 710: First trench 720:Second trench 730: First installation structure 740: Second installation structure 800: Shell 801, 802, 803: Through hole 930, 931, 932: fasteners d1, d2, d3: distance g: gap

The advantages of the present disclosure and the drawings will be better understood from the following description of the embodiments in conjunction with the reference drawings. The drawings depict exemplary embodiments only and therefore should not be construed as limiting the various embodiments or the scope of the claims. Figure 1A illustrates a front view of a rail of a prior art rail mounting assembly for supporting an electronic component on a printed circuit board. Figure 1B illustrates a perspective view of a guide rail mounting assembly in the prior art. Figure 1C shows a perspective view of a prior art rail mounting assembly shown in Figure 1B. The rail mounting assembly is fixed on a printed circuit board and has an electronic component installed therein. Figure 2A shows a perspective view of a guide rail mounting assembly in the prior art. Figure 2B shows a perspective view of a prior art rail mounting assembly shown in Figure 2A. The rail mounting assembly is fixed on a printed circuit board and has an electronic component installed therein. Figure 3A illustrates a perspective view of a prior art rail mounting assembly for supporting a pair of electronic components. Figure 3B shows a front view of the rail mounting assembly in Figure 3A, with a pair of electronic components installed inside. Figure 4A is a perspective view of a prior art rail mounting assembly for supporting a pair of electronic components. Figure 4B shows a front view of the rail mounting assembly in Figure 4A, with a pair of electronic components installed inside. Figure 5A illustrates a perspective view of a single track in accordance with aspects of the present disclosure. Figure 5B illustrates a front view of the single track of Figure 5A in accordance with aspects of the present disclosure. Figure 6 illustrates a rail mounting assembly including a single track of Figures 5A and 5B in accordance with aspects of the present disclosure, with a pair of electronic components mounted within the rail mounting assembly. Figure 7A illustrates a bottom view of a single track of Figures 5A and 5B in accordance with aspects of the present disclosure. Figure 7B illustrates how a single track is secured to a housing of a printed circuit board in accordance with aspects of the present disclosure.

700:Single track

701:Top component

702: Bottom component

703: Intermediate component

704-1: First side

704-2: Second side

710: First trench

720:Second trench

Claims (10)

A rail mounting assembly for supporting a pair of electronic components on a housing of a server. The rail mounting assembly includes: a first mounting structure for receiving a first electronic component of the pair of electronic components, the first mounting structure being configured to allow electrical coupling of the first electronic component to a printed circuit board fixed to the server ; a second mounting structure for receiving a second electronic component of the pair of electronic components, the second mounting structure configured to allow electrical coupling of the second electronic component to the printed circuit board; A single track is fixed between the first installation structure and the second installation structure. The single track has an I-shaped cross-section and includes: An extended rail body having a top member, a bottom member and an intermediate member connecting the top member and the bottom member; a first groove formed on a first side of the intermediate member between the top member and the bottom member, the first groove being configured to operate when the first electronic component is secured to the first mounting structure , engaging the first electronic component; and a second groove formed on a second side of the intermediate member between the top member and the bottom member, the second groove configured to when the second electronic component is secured to the second mounting structure , engaging the second electronic component. The guide rail mounting assembly of claim 1, wherein a width of the intermediate member or a distance between the first side and the second side is less than or equal to 4 mm. The rail mounting assembly as described in request item 2, wherein: The top member has a width that is the same as a width of the bottom member; and The width of the top member or the bottom member is larger than the width of the middle member. The rail mounting assembly of claim 3, wherein a length of the top member is the same as a length of the bottom member. The rail mounting assembly of claim 1, wherein a distance between the first electronic component engaged with the first groove and the second electronic component engaged with the second groove is less than or equal to 4 mm. The rail mounting assembly of claim 1, wherein at least one receiving portion configured to receive at least one fastener is formed on the bottom member. The guide rail mounting assembly of claim 6, wherein the number of the at least one receiving portion is one, two or three. The rail mounting assembly of claim 6, wherein the at least one receiving portion has threads, and the at least one fastener inserted into the at least one receiving portion has corresponding threads. The guide rail mounting assembly of claim 6, wherein the at least one fastener penetrates the fixed housing and inserts into the at least one receiving portion. An assembly kit including: a printed circuit board; A pair of electronic components, including a first electronic component and a second electronic component; A guide rail mounting assembly is used to support the pair of electronic components on a housing of a server. The rail mounting assembly includes: a first mounting structure fixed to the housing, the first mounting structure configured to allow electrical coupling of the first electronic component and the printed circuit board; a second mounting structure fixed to the housing, the second mounting structure configured to allow electrical coupling of the second electronic component and the printed circuit board; A single track is fixed on the housing and between the first mounting structure and the second mounting structure. The single track has an I-shaped cross-section and includes: An extended rail body having a top member, a bottom member and an intermediate member connecting the top member and the bottom member; a first groove formed on a first side of the intermediate member between the top member and the bottom member, the first groove being configured to operate when the first electronic component is secured to the first mounting structure Engage the first electronic component; and a second groove formed on a second side of the intermediate member between the top member and the bottom member, the second groove configured to when the second electronic component is secured to the second mounting structure Engage the second electronic component.