A chassis

Abstract

This application relates to the field of communication equipment technology. It provides a chassis including a front-opening enclosure, a guide rail, a guide assembly located inside the enclosure, and a locking member on the guide rail. The guide assembly includes a guide strip disposed on one side of the guide rail in the height direction. Guided by the guide strip, the guide rail can be inserted into or removed from the enclosure from the front opening. The locking member can lock or unlock the guide rail. The chassis provided in this application allows the guide rail to be quickly assembled onto the enclosure under the guidance of the guide strip. By installing and removing the guide rail, two or more narrow cards can be simultaneously inserted into a slot for a wide card, enabling the chassis to adapt to the assembly requirements of different cards and, to a certain extent, avoiding the need for disassembling and assembling the chassis.

Description

Technical Field

[0001] This application relates to the field of communication equipment technology, and more particularly to a chassis. Background Technology

[0002] In standard chassis used in the field of communication equipment, each board enters the chassis through an open front panel and interfaces with the chassis's back panel (i.e., the circuit board). As the number of boards inside the chassis increases, application scenarios where multiple boards are applicable often arise. For example, a wide board slot may need to accommodate two narrow boards simultaneously. Typically, this requires disassembling and reassembling the chassis. Summary of the Invention

[0003] In view of this, embodiments of this application provide a chassis, the chassis of which is provided with guide rails for easy assembly and disassembly. The technical solution of embodiments of this application is implemented as follows:

[0004] This application provides a chassis, including:

[0005] An open-front box;

[0006] guide;

[0007] A guide assembly located within the housing, the guide assembly including a guide bar disposed on one side of the guide rail in the height direction, the guide bar guiding the guide rail to insert into or remove from the housing from its front opening; and

[0008] A locking element located on the guide rail, the locking element being capable of locking or unlocking the guide rail.

[0009] In some embodiments, the guide rail has a receiving cavity, and the bottom of the guide rail has a guide groove communicating with the receiving cavity; the guide bar includes a top limiting portion located in the receiving cavity, a bottom limiting portion located outside the guide rail, and a sliding post connecting the top limiting portion and the bottom limiting portion, the sliding post being slidably accommodated in the guide groove, and the width of the top limiting portion and the width of the bottom limiting portion are both greater than the width of the guide groove.

[0010] In some embodiments, the guide assembly includes a snap-lock located at the rear of the guide bar, the locking element being located at the front of the guide rail; a portion of the snap-lock is located within the receiving cavity and presses against the inner bottom surface of the receiving cavity.

[0011] In some embodiments, the snap-lock includes a housing and an elastic element located within the housing. The housing includes a head and a neck connecting the head and the bottom limiting portion. In a top view of the snap-lock, the outer contour of the neck projection is located within the outer contour of the head projection. The neck is located within the guide groove, the head is located within the receiving cavity, and the elastic element generates an elastic force to press the head against the inner bottom surface of the receiving cavity.

[0012] In some embodiments, the rear side of the guide rail has an opening communicating with the receiving cavity, the guide groove communicates with the opening, and the portion of the guide groove near the opening is widened to form a first guide area. The top limiting portion can enter the receiving cavity through the opening, and the sliding column is guided into the guide groove via the first guide area; and / or,

[0013] One of the top limiting portion and the bottom limiting portion is provided with a positioning pin, and the other of the top limiting portion and the bottom limiting portion is provided with a pin hole, wherein the positioning pin can be inserted into the pin hole; and / or

[0014] The guide rail includes a side beam, which includes a vertical plate and a bent portion disposed on the bottom side of the vertical plate; the two vertical plates are fastened together to form a structure with open front and rear sides, the space between the two vertical plates is the receiving cavity, and the gap between the two bent portions is the guide groove.

[0015] In some embodiments, the chassis includes a mounting base disposed within the receiving cavity, the mounting base being located on the top side of the top limiting portion, the locking member being located within the receiving cavity and disposed on the mounting base, the sidewall of the guide rail having a hand-receiving opening corresponding to the location of the locking member, a portion of the locking member being able to extend out of the guide rail and be locked to the guide bar.

[0016] In some embodiments, the mounting base includes a mounting plate located on the top side of the top limiting portion and an assembly plate extending from the mounting plate along the height direction of the housing, the locking member being disposed on the mounting plate, the assembly plate being used to connect to the side wall of the guide rail, and the rear end of the mounting plate being inclined to the top side to form a guide portion.

[0017] In some implementations, a first positioning portion is formed in the circumferential direction of the mounting plate, and a second positioning portion is formed in the guide rail, wherein the first positioning portion can be inserted into the second positioning portion.

[0018] In some embodiments, a limiting groove is formed on the top of the guide rail extending in the front-rear direction of the guide rail, and the chassis includes a first limiting member slidably received within the limiting groove.

[0019] In some embodiments, the rear side of the guide rail has an opening communicating with the limiting groove, and the portion of the limiting groove near the opening is widened to form a second guide area, through which the first limiting member is guided into the limiting groove; and / or,

[0020] The first limiting member is located at the front of the chassis, and the chassis includes a second limiting member located at the rear. The limiting groove forms a limiting area that matches the shape of the second limiting member. When the guide rail is inserted into the chassis, the second limiting member is accommodated within the limiting area.

[0021] The chassis provided in this application embodiment allows for the assembly of narrow circuit boards within the space defined by the guide rail and chassis when the guide rail is inserted into the chassis; and wide circuit boards can be assembled within the chassis when the guide rail is removed from the chassis. Guided by the guide bar, the guide rail can be quickly assembled onto the chassis. A locking element secures the guide rail to the chassis, further tightening it and preventing it from wobbling or moving. When assembling a narrow circuit board, the guide rail is quickly inserted into the chassis via the guide bar, and the locking element locks the guide rail. This reduces the chassis's lateral dimensions, facilitating the installation of the narrow circuit board. For example, guided and limited by the guide rail, the narrow circuit board is inserted into the chassis from the front opening and mates with the chassis's back panel (circuit board). When assembling a wide circuit board, the locking element unlocks the guide rail, and the guide rail is quickly removed from the chassis under the guidance of the guide bar. This allows the chassis to accommodate the wide circuit board. For example, the wide circuit board is inserted into the chassis from the front opening and mates with the chassis's back panel (circuit board). In this way, by installing and removing the guide rails, two or more narrow cards can be inserted into a slot for a wide card at the same time, so that the chassis can adapt to the assembly requirements of different cards and avoid disassembling and assembling the chassis to a certain extent. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the chassis structure in one embodiment of this application;

[0023] Figure 2 for Figure 1 A structural diagram of the part shown from another perspective;

[0024] Figure 3 for Figure 2 A cross-sectional view along the AA direction;

[0025] Figure 4 for Figure 2 Cross-sectional view along the BB direction;

[0026] Figure 5 for Figure 4 Enlarged view at point C;

[0027] Figure 6This is a schematic diagram of the structure of the guide component in one embodiment of this application;

[0028] Figure 7 for Figure 6 Schematic diagram of the central limiting part and sliding column;

[0029] Figure 8 for Figure 6 Schematic diagram of the midsole limiting part;

[0030] Figure 9 This is a schematic diagram of the guide rail, locking element, and mounting base in one embodiment of this application;

[0031] Figure 10 for Figure 9 A structural diagram of the structure shown from another perspective;

[0032] Figure 11 for Figure 9 The diagram shown is a structural schematic from another perspective.

[0033] Figure 12 for Figure 9 An exploded view of the structure shown.

[0034] Figure 13 This is a schematic diagram of the structure of the first limiting member, the second limiting member, and the partition in one embodiment of this application.

[0035] Explanation of reference numerals in the attached figures

[0036] Board 1; Box 10; Subspace 10a; Guide rail 20; Receiving cavity 20a; Guide groove 20b; First guide area 20b'; Opening 20c; Second positioning part 20d; Limiting groove 20e; Second guide area 20e'; Limiting area 20e”; Expansion area 20e”'; Hand-holding opening 20f; Side beam 21; Vertical plate 211; Bending part 212; Folding part 213; Column 22; Hand pull part 23; Guide Component 30; guide bar 31; top limiting part 311; bottom limiting part 312; sliding column 313; snap lock 32; outer shell 321; neck 3211; head 3212; positioning pin 31a; pin hole 31b; locking member 40; mounting base 50; mounting plate 51; first positioning part 51a; notch 51b; guide part 511; assembly plate 52; first limiting member 60; second limiting member 70; partition 80. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. It should be noted that in the embodiments of this application, the top-bottom direction, the front-back direction, and the left-right direction are mutually perpendicular; that is, the top-bottom direction, the front-back direction, and the left-right direction together constitute a three-dimensional coordinate system. For example, Figure 1 , Figure 2 and Figure 9 The directions or positional relationships shown in the description of the embodiments of this application are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be regarded as a limitation on the embodiments of this application. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] Please see Figures 1 to 3 This application provides a chassis, which includes a front-opening chassis 10, a guide rail 20, a guide assembly 30 located inside the chassis 10, and a locking member 40 located on the guide rail 20. The guide assembly 30 includes a guide bar 31 disposed on one side of the guide rail 20 in the height direction. Under the guidance of the guide bar 31, the guide rail 20 can be inserted into or pulled out of the chassis 10 from the front opening. The locking member 40 can lock or unlock the guide rail 20.

[0039] The chassis provided in this application embodiment allows for the assembly of narrow circuit boards within the space defined by the guide rail 20 and the chassis 10 when the guide rail 20 is inserted into the chassis 10; and allows for the assembly of wide circuit boards within the chassis 10 when the guide rail 20 is removed from the chassis 10. Guided by the guide bar 31, the guide rail 20 can be quickly assembled onto the chassis 10. The locking member 40 locks the guide rail 20 onto the chassis 10 to further secure the guide rail 20 and prevent it from shaking or moving. When it is necessary to assemble a narrow circuit board 1, the guide rail 20 is quickly inserted into the chassis 10 through the guide bar 31, and the locking member 40 locks the guide rail 20. This reduces the lateral dimensions of the chassis 10 by utilizing the guide rail 20, facilitating the installation of the narrow circuit board 1. For example, guided and limited by the guide rail 20, the narrow circuit board 1 is inserted into the chassis 10 from the front opening and mates with the back panel (circuit board) of the chassis 10. When a wide card 1 needs to be installed, the locking element 40 unlocks the guide rail 20, and the guide rail 20 is quickly pulled out of the enclosure 10 under the guidance of the guide bar 31. In this way, the enclosure 10 can accommodate the wide card 1. For example, the wide card 1 is inserted into the enclosure 10 from the front opening and mates with the back panel (circuit board) of the enclosure 10. In this way, by installing and removing the guide rail 20, two or more narrow cards 1 can be inserted into one slot of the wide card 1 at the same time, so that the chassis can adapt to the assembly requirements of different cards 1 and avoid disassembling and assembling the chassis to a certain extent.

[0040] It should be noted that the width of the wide card is greater than the width of the narrow card. In other words, in the left-right direction of the box 10, the size of the wide card is greater than the size of the narrow card.

[0041] In one embodiment, please refer to Figures 3 to 10The guide rail 20 has a receiving cavity 20a, and a guide groove 20b communicating with the receiving cavity 20a is formed at the bottom of the guide rail 20. The guide bar 31 includes a top limiting part 311 located in the receiving cavity 20a, a bottom limiting part 312 located outside the guide rail 20, and a sliding post 313 connecting the top limiting part 311 and the bottom limiting part 312. The sliding post 313 is slidably accommodated in the guide groove 20b. The width of the top limiting part 311 and the width of the bottom limiting part 312 are both greater than the width of the guide groove 20b. That is, the guide rail 20 and the guide bar 31 are slidably engaged, and the guide rail 20 slides into or out of the housing 10 along the sliding post 313. The sliding column 313 is located between the top limiting part 311 and the bottom limiting part 312, and the width of both the top limiting part 311 and the bottom limiting part 312 is greater than the width of the guide groove 20b. In other words, the width of both the top limiting part 311 and the bottom limiting part 312 is greater than the width of the sliding column 313. The cross-sectional shape of the guide bar 31 is approximately I-shaped. When the guide rail 20 is inserted into the housing 10, the top limiting part 311 is located in the receiving cavity 20a, the sliding column 313 is housed in the guide groove 20b, and the bottom limiting part 312 is located outside the guide rail 20. Thus, the top limiting part 311 and the bottom limiting part 312 can restrict the guide rail 20 from disengaging from the sliding column 313 along the height direction of the housing 10, allowing the guide rail 20 to slide more smoothly along the sliding column 313.

[0042] It should be noted that the widths of the top limiting part 311, the bottom limiting part 312, the sliding column 313, and the guide groove 20b refer to the dimensions in the left-right direction.

[0043] The specific dimensions of the sliding column 313 and the guide groove 20b are not limited. For example, in one embodiment, please refer to... Figure 5 The size of the sliding column 313 can be matched with the size of the guide groove 20b. The size of the guide groove 20b in the left and right direction is slightly larger than the size of the sliding column 313. This makes it easy for the sliding column 313 to slide in the guide groove 20b, and also prevents the sliding column 313 from shaking significantly in the left and right direction.

[0044] In one embodiment, please refer to Figure 5 and Figure 10The rear side of the guide rail 20 has an opening 20c that communicates with the receiving cavity 20a. The guide groove 20b communicates with the opening 20c, meaning that the guide groove 20b extends along the front-rear direction of the guide rail 20 to the location of the opening 20c. The portion of the guide groove 20b near the opening 20c is enlarged to form a first guide area 20b'. The top limiting portion 311 can enter the receiving cavity 20a through the opening 20c, and the sliding column 313 is guided into the guide groove 20b via the first guide area 20b'. During the process of the guide rail 20 being inserted into the housing 10, the top limiting part 311 enters the receiving cavity 20a through the opening 20c. The size of the first guide area 20b' is larger than the size of other parts of the guide groove 20b. In this way, the sliding column 313 can quickly align with the first guide area 20b' and quickly enter the first guide area 20b' through the opening 20c. This facilitates the sliding column 313 to quickly enter the guide groove 20b under the guidance of the first guide area 20b', thereby avoiding misalignment between the sliding column 313 and the guide groove 20b to a certain extent.

[0045] The specific shape of the first guide region 20b' is not limited. For example, in one embodiment, please refer to [reference needed]. Figure 10 The width of the first guide region 20b' gradually decreases from near the opening 20c to away from the opening 20c. In another embodiment, the groove wall of the first guide region 20b' is chamfered at the connection with the guide groove 20b.

[0046] To further secure the guide rail 20, in one embodiment, please refer to... Figure 5 and Figure 6 The guide assembly 30 includes a snap-lock 32 located at the rear of the guide bar 31, and a locking member 40 located at the front of the guide rail 20. Thus, the locking member 40 locks the front of the guide rail 20, and the snap-lock 32 locks the rear of the guide rail 20, further preventing the guide rail 20 from shaking. A portion of the snap-lock 32 is located within the receiving cavity 20a and presses against the inner bottom surface of the receiving cavity 20a. With the guide rail 20 inserted into the housing 10, the snap-lock 32 enters the receiving cavity 20a and presses against the inner bottom surface of the receiving cavity 20a, making operation simple and convenient.

[0047] In one embodiment, please refer to Figure 6The snap-lock 32 includes a housing 321 and an elastic element located within the housing 321. The housing 321 includes a head 3212 and a neck 3211 connecting the head 3212 and the bottom limiting portion 312. In a top view of the snap-lock 32, the outer contour of the neck 3211 is located within the outer contour of the head 3212. The neck 3211 is located within the guide groove 20b, and the head 3212 is located within the receiving cavity 20a. The elastic element generates an elastic force to press the head 3212 against the inner bottom surface of the receiving cavity 20a. When the guide rail 20 is inserted into the housing 10, the head 3212 is located within the receiving cavity 20a, and the neck 3211 is located within the guide groove 20b. The bottom portion of the guide rail 20 is inserted between the head 3212 and the neck 3211, driving the housing 321 to translate upwards. The housing 321 causes the elastic element to undergo elastic deformation, and the elastic element generates an elastic force to press the head 3212 against the inner bottom surface of the receiving cavity 20a. As the guide rail 20 is pulled forward out of the housing 10, the bottom part of the guide rail 20 detaches from the housing 321, the housing 321 moves to the bottom side, and the elastic element restores its elastic deformation.

[0048] Specifically, in the front-rear direction of the guide rail 20, the length of the top limiting part 311 and the length of the sliding column 313 are both less than the length of the bottom limiting part 312, so that the neck 3211 can be set on the bottom limiting part 312.

[0049] The specific structure of the elastic element is not limited; for example, the elastic element includes, but is not limited to, a spring. The spring can be a tension spring or a compression spring, etc.

[0050] The specific shapes of the top limiting portion 311 and the bottom limiting portion 312 are not limited. For example, in one embodiment, please refer to... Figures 6 to 8 Both the top limiting part 311 and the bottom limiting part 312 are plate-shaped structures extending along the front-rear direction of the housing 10, and the top limiting part 311 and the sliding column 313 are integrally formed. This simplifies the manufacturing and assembly processes of the top limiting part 311 and the sliding column 313.

[0051] The specific connection method of the top limiting part 311 and the bottom limiting part 312 is not limited. For example, in one embodiment, the top limiting part 311 and the bottom limiting part 312 are connected by screws.

[0052] To further facilitate rapid positioning and assembly of the top limiting part 311 and the bottom limiting part 312, in one embodiment, please refer to... Figures 6 to 8The top limiting portion 311 has a positioning pin 31a, and the bottom limiting portion 312 has a pin hole 31b, into which the positioning pin 31a can be inserted. In another embodiment, the bottom limiting portion 312 has a positioning pin 31a, and the top limiting portion 311 has a pin hole 31b. The top limiting portion 311 and the bottom limiting portion 312 are separate structures, which facilitates manufacturing. When it is necessary to assemble the top limiting portion 311 and the bottom limiting portion 312, the positioning pin 31a is inserted into the pin hole 31b, thus facilitating quick alignment of the top limiting portion 311 and the bottom limiting portion 312. A screw is then passed through the top limiting portion 311 and the bottom limiting portion 312 to connect them.

[0053] In one embodiment, please refer to Figure 3 , Figures 9 to 12 The guide rail 20 includes side beams 21, each side beam 21 comprising a vertical plate 211 and a bent portion 212 disposed on the bottom side of the vertical plate 211. Two vertical plates 211 are interlocked to form an open structure on both the front and rear sides. The space between the two vertical plates 211 is a receiving cavity 20a, and the gap between the two bent portions 212 is a guide groove 20b. This design simplifies the structure of the guide rail 20. Furthermore, it allows for the separate production of the side beams 21, which are then assembled into the guide rail 20. This further simplifies the structure of a single side beam 21 and reduces manufacturing complexity.

[0054] In one embodiment, the bent portion 212 is located between the head 3212 and the neck 3211, and the head 3212 presses against the bent portion 212 under the action of the elastic force of the elastic member.

[0055] To further reduce manufacturing effort, in one exemplary embodiment, please refer to... Figure 12 The vertical plate 211 and the bent portion 212 are integrally molded structures, thereby further saving manufacturing processes. For example, the guide rail 20 is a plastic part, and the side beam 21 can be an integrally injection molded structure.

[0056] The connection method between the two vertical plates 211 is not limited. For example, in one embodiment, please refer to... Figure 12 The two vertical plates 211 are connected by screws. For example, one vertical plate 211 has a stud, and the other vertical plate 211 has a screw hole, through which the screw is threaded to the stud. In another embodiment, the two vertical plates 211 are snap-fitted together.

[0057] In one embodiment, please refer to Figures 9 to 12The guide rail 20 includes a column 22 that closes the front openings of the two vertical plates 211. The front of the guide rail 20 faces the user, and the column 22 closing the front openings of the two vertical plates 211 enhances the aesthetics of the guide rail 20. The rear openings of the two vertical plates 211 are called openings 20c, which allow the top limiting part 311 to enter the receiving cavity 20a through the openings 20c.

[0058] The connection method between the column 22 and the vertical plate 211 is not limited. For example, in one embodiment, please refer to... Figure 9 and Figure 12 The column 22 and the vertical plate 211 are connected by screws.

[0059] In one embodiment, a slot is formed on the column 22, and the latch of the board 1 is inserted into the slot to lock the board 1.

[0060] In one embodiment, please refer to Figure 3 , Figure 5 Figure 9 as well as Figure 12 The chassis includes a mounting base 50 disposed within a receiving cavity 20a. The mounting base 50 is located on the top side of the top limiting portion 311. A locking member 40 is located within the receiving cavity 20a and is disposed on the mounting base 50. A hand-receiving opening 20f is formed on the side wall of the guide rail 20 corresponding to the location of the locking member 40. A portion of the locking member 40 can extend out of the guide rail 20 and is locked to the guide bar 31. The mounting base 50 provides good support, strengthens the structural strength of the guide rail 20, and to a certain extent avoids the force of the locking member 40 being directly transmitted to the guide rail 20. The mounting base 50 is disposed within the receiving cavity 20a to improve the aesthetics of the guide rail 20. The hand-receiving opening 20f communicates with the receiving cavity 20a, which not only facilitates the user to insert their hand into the receiving cavity 20a through the hand-receiving opening 20f to operate the locking member 40, but also facilitates the user to grasp the guide rail 20 through the hand-receiving opening 20f and pull the guide rail 20 forward. A portion of the locking member 40 can extend beyond the guide rail 20 and lock onto the guide bar 31, thereby locking the guide rail 20 onto the housing 10. The locking member 40 can also retract into the receiving cavity 20a to prevent the locking member 40 from interfering with the sliding of the guide rail 20.

[0061] The number of hand-held openings 20f is unlimited. For example, in one embodiment, please refer to... Figure 3 , Figure 5 Figure 9 as well as Figure 12 Both vertical plates 211 are provided with hand-receiving openings 20f. In another embodiment, either vertical plate 211 is provided with a hand-receiving opening 20f.

[0062] The specific form of the locking element 40 is not limited; as an example, please refer to one embodiment. Figure 5The locking member 40 includes a locking part that can extend out of the guide rail 20 and a rotating part for rotating the locking part. In the rotation direction of the locking part, the locking part has a locked position and an unlocked position. The locking part can extend out of the guide rail 20 from the guide groove 20b. Twisting the rotating part causes the locking part to rotate until it reaches the locked position, locking the guide rail 20 onto the guide bar 31. When it is necessary to unlock the guide rail 20, twisting the rotating part causes the locking part to rotate to the unlocked position, unlocking the guide rail 20. The locking part is then returned to the receiving cavity 20a, and the guide rail 20 can slide out of the housing 10.

[0063] In one embodiment, the locking element 40 may be a captive screw.

[0064] In one embodiment, please refer to Figure 5 and Figure 12 The mounting base 50 includes a mounting plate 51 located on the top side of the top limiting portion 311, and an assembly plate 52 extending from the mounting plate 51 along the height direction of the housing 10. A locking member 40 is disposed on the mounting plate 51. The assembly plate 52 is used to connect with the side wall of the guide rail 20. The rear end of the mounting plate 51 is inclined upward to form a guide portion 511. The mounting base 50 has a simple structure and is easy to manufacture. The assembly plate 52 is connected to the side wall of the guide rail 20, thereby securely assembling the mounting base 50 onto the guide rail 20. The guide rail 20 slides into the housing 10 along the guide bar 31, and the mounting base 50 slides along the top surface of the top limiting portion 311 under the guidance of the guide portion 511.

[0065] The assembly method of the mounting base 50 and the guide rail 20 is not limited. In one embodiment, please refer to... Figure 9 and Figure 12 The connector passes through the side wall of the guide rail 20 and the mounting plate 52 to secure the mounting base 50 to the guide rail 20. The connector includes, but is not limited to, screws. This, to a certain extent, prevents the connector from interfering with the sliding fit between the guide rail 20 and the guide bar 31.

[0066] The number of assembly plates 52 is not limited. In one embodiment, please refer to [example description]. Figure 12 The mounting plates 52 are multiple, and are distributed circumferentially around the mounting plate 51. For example, there are four mounting plates 52, with two located on the left side of the mounting plate 51 and two on the right side, thus further strengthening the connection between the mounting base 50 and the guide rail 20. In another embodiment, there is only one mounting plate 52.

[0067] It should be noted that in the embodiments of this application, "multiple" refers to two or more.

[0068] In one embodiment, please refer to Figure 9 and Figure 12The mounting plate 51 has a first positioning portion 51a formed in the circumferential direction, and the guide rail 20 has a second positioning portion 20d. The first positioning portion 51a can be inserted into the second positioning portion 20d. This facilitates quick positioning and assembly of the mounting base 50 and the guide rail 20.

[0069] The specific structural shapes of the first positioning part 51a and the second positioning part 20d are not limited. For example, in one embodiment, please refer to [example provided]. Figure 9 and Figure 12 In one embodiment, the first positioning part 51a is a protrusion, and the second positioning part 20d is a groove, with the protrusion able to be inserted into the groove. In another embodiment, the second positioning part 20d is a protrusion, and the first positioning part 51a is a groove.

[0070] The number of the first positioning part 51a and the second positioning part 20d is not limited. In one embodiment, please refer to [reference needed]. Figure 12 The number of first positioning parts 51a and second positioning parts 20d is multiple, and the first positioning parts 51a and second positioning parts 20d are arranged in a one-to-one correspondence. The multiple first positioning parts 51a are distributed at intervals along the circumference of the mounting plate 51. For example, there are four first positioning parts 51a, with two first positioning parts 51a located on the left side of the mounting plate 51 and two first positioning parts 51a located on the right side of the mounting plate 51. This facilitates accurate positioning of the mounting plate 51 and the guide rail 20. In another embodiment, the number of first positioning parts 51a and second positioning parts 20d is one.

[0071] In one embodiment, please refer to Figure 12 A notch 51b is formed at the connection between the mounting plate 51 and the assembly plate 52, and a first positioning part 51a is provided at the notch 51b. In this way, the increase in the left-right dimension of the mounting base 50 is avoided to a certain extent, that is, the increase in the width of the mounting base 50 is avoided.

[0072] The manufacturing process of the mounting base 50 is not limited. In one embodiment, the mounting base 50 is a one-piece molded structure.

[0073] In one embodiment, please refer to Figure 5 , Figure 11 and Figure 13 The top of the guide rail 20 has a limiting groove 20e extending along the front-rear direction of the guide rail 20, and the chassis includes a first limiting member 60 slidably accommodated within the limiting groove 20e. On one hand, the first limiting member 60 can slide along the limiting groove 20e, serving a guiding function. On the other hand, the first limiting member 60, accommodated within the limiting groove 20e, to a certain extent restricts the wobbling of the guide rail 20, thereby making the assembly of the guide rail 20 more stable and improving reliability.

[0074] The specific shape of the first limiting member 60 is not limited. For example, in one embodiment, please refer to [example image / reference]. Figure 13The first limiting member 60 is in the shape of a sheet, which facilitates the sliding of the first limiting member 60 along the limiting groove 20e.

[0075] The specific formation method of the limiting groove 20e is not limited. In one embodiment, please refer to [example description]. Figure 11 The side beam 21 includes a folded part 213 disposed on the top side of the vertical plate 211, and the gap between the two folded parts 213 is a limiting groove 20e.

[0076] In one embodiment, please refer to Figure 11 and Figure 13 The guide rail 20 has an opening 20c on its rear side that communicates with the limiting groove 20e. The portion of the limiting groove 20e near the opening 20c is enlarged to form a second guide area 20e'. The first limiting member 60 is guided into the limiting groove 20e via the second guide area 20e'. The size of the first limiting member 60 can match the size of the limiting groove 20e. The size of the limiting groove 20e in the left-right direction is slightly larger than the size of the first limiting member 60. This facilitates the sliding of the first limiting member 60 within the limiting groove 20e while preventing the first limiting member 60 from swaying significantly in the left-right direction. During the process of the guide rail 20 being inserted into the housing 10, the size of the second guide area 20e' is larger than the size of other parts of the limiting groove 20e, which facilitates the quick alignment of the first limiting member 60 with the second guide area 20e'. Thus, the first limiting member 60 can enter the second guide area 20e' through the opening 20c and quickly enter the limiting groove 20e under the guidance of the second guide area 20e'.

[0077] The specific shape of the second guide region 20e' is not limited. For example, in one embodiment, please refer to [reference needed]. Figure 11 The width of the second guide region 20e' gradually decreases from near the opening 20c to away from the opening 20c. In another embodiment, the groove wall of the second guide region 20e' is chamfered at the connection between it and the guide groove 20b.

[0078] In one embodiment, please refer to Figure 2 , Figure 11 as well as Figure 13 The first limiting member 60 is located at the front of the chassis, and the chassis includes a second limiting member 70 located at its rear. A limiting groove 20e forms a limiting area 20e” that matches the shape of the second limiting member 70. When the guide rail 20 is inserted into the housing 10, the second limiting member 70 is accommodated within the limiting area 20e”. In other words, the first limiting member 60 and the second limiting member 70 can further restrict the movement of the guide rail 20. During the rearward insertion of the guide rail 20 into the housing 10, the first limiting member 60 slides along the limiting groove 20e until the guide rail 20 is inserted into the housing 10, at which point the second limiting member 70 enters the limiting area 20e”.

[0079] The specific shape of the second limiting member 70 is not limited. For example, in one embodiment, please refer to [example image / description]. Figure 11 as well as Figure 13 The limiting area 20e” is located on the side of the second guide area 20e' near the opening 20c. The second limiting member 70 is cylindrical, and the limiting area 20e” is circular. The diameter of the limiting area 20e” is slightly larger than the diameter of the second limiting member 70. In this way, the second limiting member 70 can slide into the limiting area 20e” through the opening 20c and remain in the limiting area 20e”.

[0080] An enlarged area 20e"' can also be formed on the limiting groove 20e to cooperate with other structures inside the chassis. For example, in one embodiment, please refer to... Figure 11 The width of the enlarged area 20e”’ is greater than the width of the limiting groove 20e. The groove wall of the enlarged area 20e”’ is chamfered at the connection with the guide groove 20b. This makes it easier for the first limiting member 60 to smoothly re-enter the limiting groove 20e when it slides into the enlarged area 20e”’.

[0081] In one embodiment, please refer to Figures 1 to 5 ,as well as Figure 13 The chassis includes at least one partition 80 located inside the enclosure 10 and arranged along the height direction of the enclosure 10. The partition 80 divides the space inside the enclosure 10 into multiple sub-spaces 10a distributed along the height direction of the enclosure 10, and the guide rail 20 is located within the sub-spaces 10a. This allows the enclosure 10 to accommodate a larger number of circuit boards 1.

[0082] Guide rails 20 can be installed layer by layer along the height direction of the housing 10. For example, in one embodiment, please refer to... Figures 1 to 5 ,as well as Figure 13 In one embodiment, a guide rail 20 is provided between the partition 80 and the inner bottom surface of the housing 10. A first limiting member 60 and a second limiting member 70 are provided on the partition 80, and a guide strip 31 is provided on the inner bottom surface of the housing 10. In another embodiment, a guide rail 20 is provided between the partition 80 and the inner top surface of the housing 10. A first limiting member 60 and a second limiting member 70 are provided on the inner top surface of the housing 10, and a guide strip 31 is provided on the partition 80. In yet another embodiment, a guide rail 20 can be provided between two adjacent partitions 80. A first limiting member 60 and a second limiting member 70 are provided on the top partition 80 of the guide rail 20, and a guide strip 31 can be provided on the bottom partition 80 of the guide rail 20.

[0083] The partition 80 may not be provided inside the box 10. In one embodiment, a guide rail 20 is provided between the inner bottom surface and the inner top surface of the box 10, the first limiting member 60 and the second limiting member 70 are provided on the inner top surface of the box 10, and the guide strip 31 is provided on the inner bottom surface of the box 10.

[0084] The connection method between the guide strip 31 and the housing 10 or the partition 80 is not limited. In one embodiment, please refer to... Figures 3 to 8The top limiting part 311 and the sliding column 313 are integrally formed structures. The bottom limiting part 312 is disposed on the housing 10. The positioning pin 31a passes through the pin hole 31b and the first through hole of the housing 10, so that the bottom limiting part 312 and the top limiting part 311 are first positioned on the housing 10. The screw can pass through the housing 10, the bottom limiting part 312 and the top limiting part 311 in sequence from the outside of the housing 10, thereby assembling the guide strip 31 onto the housing 10. In another embodiment, the bottom limiting part 312 is disposed on the partition 80. The positioning pin 31a passes through the pin hole 31b and the second through hole of the partition 80. The screw can pass through the partition 80, the bottom limiting part 312 and the top limiting part 311 in sequence, thereby assembling the guide strip 31 onto the partition 80.

[0085] In one embodiment, please refer to Figure 3 as well as Figure 12 The guide rail 20 has a pull part 23. This allows the user to hold the pull part 23 and pull the guide rail 20 outward.

[0086] The specific location of the pull part 23 is not limited. For example, in one embodiment, please refer to [reference needed]. Figure 3 as well as Figure 12 The pull part 23 is plate-shaped and located within the receiving cavity 20a, specifically at the hand-holding opening 20f. The pull part 23 is connected to the inner wall of the vertical plate 211. This design enhances the aesthetics of the guide rail 20 and facilitates the user's gripping of the pull part 23 through the hand-holding opening 20f to pull the guide rail 20 out of the housing 10.

[0087] In the above description, the terms "some embodiments," "one embodiment," "another embodiment," and "a specific embodiment" are used, which describe a subset of all possible embodiments. Therefore, "some embodiments" or "one embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. It is understood that "some embodiments," "one embodiment," "another embodiment," and "a specific embodiment" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0088] The above description is merely an embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A chassis, characterized in that, include: An open-front box; Guide rail, wherein the guide rail has a receiving cavity; A guide assembly located inside the housing includes a guide bar disposed on one side of the guide rail in the height direction. Under the guidance of the guide bar, the guide rail can be inserted into or pulled out of the housing from the front opening of the housing. as well as A locking element located on the guide rail, the locking element being capable of locking or unlocking the guide rail; The chassis includes a mounting base disposed within the receiving cavity, and the locking member is located within the receiving cavity and disposed on the mounting base; The guide bar includes a top limiting portion located within the receiving cavity, the mounting base is located on the top side of the top limiting portion, the side wall of the guide rail has a hand opening corresponding to the location of the locking member, and a portion of the locking member can extend out of the guide rail and be locked onto the guide bar.

2. The chassis according to claim 1, characterized in that, The bottom of the guide rail has a guide groove that communicates with the receiving cavity; the guide bar includes a bottom limiting part located outside the guide rail and a sliding post connecting the top limiting part and the bottom limiting part, the sliding post being slidably accommodated in the guide groove, and the width of the top limiting part and the width of the bottom limiting part are both greater than the width of the guide groove.

3. The chassis according to claim 2, characterized in that, The guide assembly includes a snap-lock located at the rear of the guide bar, and the locking element is located at the front of the guide rail; a portion of the snap-lock is located within the receiving cavity and presses against the inner bottom surface of the receiving cavity.

4. The chassis according to claim 3, characterized in that, The snap-lock includes a housing and an elastic element located within the housing. The housing includes a head and a neck connecting the head and the bottom limiting portion. In a top view of the snap-lock, the outer contour of the neck projection is located within the outer contour of the head projection. The neck is located within the guide groove, and the head is located within the receiving cavity. The elastic element generates an elastic force to press the head against the inner bottom surface of the receiving cavity.

5. The chassis according to claim 2, characterized in that, The rear side of the guide rail has an opening communicating with the receiving cavity. The guide groove communicates with the opening. The portion of the guide groove near the opening widens to form a first guide area. The top limiting portion can enter the receiving cavity through the opening. The sliding column is guided into the guide groove via the first guide area; and / or, One of the top limiting portion and the bottom limiting portion is provided with a positioning pin, and the other of the top limiting portion and the bottom limiting portion is provided with a pin hole, wherein the positioning pin can be inserted into the pin hole; and / or The guide rail includes a side beam, which includes a vertical plate and a bent portion disposed on the bottom side of the vertical plate; the two vertical plates are fastened together to form a structure with open front and rear sides, the space between the two vertical plates is the receiving cavity, and the gap between the two bent portions is the guide groove.

6. The chassis according to claim 1, characterized in that, The mounting base includes a mounting plate located on the top side of the top limiting portion and an assembly plate extending from the mounting plate along the height direction of the housing. The locking member is disposed on the mounting plate. The assembly plate is used to connect with the side wall of the guide rail. The rear end of the mounting plate is inclined to the top side to form a guide portion.

7. The chassis according to claim 6, characterized in that, The mounting plate has a first positioning part formed in the circumferential direction, and the guide rail has a second positioning part formed, wherein the first positioning part can be inserted into the second positioning part.

8. The chassis according to any one of claims 1 to 7, characterized in that, The top of the guide rail has a limiting groove extending along the front-rear direction of the guide rail, and the chassis includes a first limiting member slidably accommodated in the limiting groove.

9. The chassis according to claim 8, characterized in that, The rear side of the guide rail has an opening communicating with the limiting groove. The portion of the limiting groove near the opening is widened to form a second guide area. The first limiting member is guided into the limiting groove via the second guide area; and / or, The first limiting member is located at the front of the chassis, and the chassis includes a second limiting member located at the rear. The limiting groove forms a limiting area that matches the shape of the second limiting member. When the guide rail is inserted into the chassis, the second limiting member is accommodated within the limiting area.

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