An LVDS signal box that is easy to maintain

Abstract

This utility model discloses an LVDS signal box that is easy to maintain, including a housing with a U-shaped cross-section and two end plates respectively installed at the left and right ends of the housing, which together form a receiving cavity, and a circuit board is provided in the receiving cavity; the housing includes an upper housing and a lower housing joined together, and the cross-section of the upper housing and the lower housing is U-shaped; the upper and lower ends of the two end plates are respectively detachably fixed to the upper housing and the lower housing; the circuit board is arranged horizontally and is snapped between the two side walls of the upper housing or the two side walls of the lower housing. Compared with the prior art, this utility model does not require the circuit board to be pulled out from the end of the housing for maintenance, making the operation more convenient and preventing damage to the circuit board.

Description

Technical Field

[0001] The utility model relates to the technical field of display instruments, in particular to an LVDS signal box which is easy to maintain. Background Art

[0002] LVDS (Low-Voltage Differential Signaling) signal boxes are used for development testing, production testing, and experimental testing of vehicle instrument display screens and central control display screens. The LVDS signal box structure in the prior art includes a shell with a square cross-section and two end plates respectively installed at the left and right ends of the shell. The three together form a receiving cavity, in which a circuit board is installed, and the two ends of the circuit board are clamped on the two opposite side walls of the shell; the shell is an integral structure, and when the circuit board fails and needs to be repaired, the circuit board needs to be pulled out from the end, which is inconvenient to operate and may also cause damage to the circuit board and the shell due to friction. Utility Model Content

[0003] The utility model aims to provide an LVDS signal box that is easy to repair, aiming at the problem in the prior art that when a circuit board in an LVDS signal box fails and needs to be repaired, the circuit board needs to be pulled out from the end of a shell, which is inconvenient to operate and may also cause damage caused by friction between the circuit board and the shell.

[0004] In order to achieve the above-mentioned utility model purpose, the utility model provides the following technical solutions:

[0005] A maintenance-friendly LVDS signal box comprises a shell with a U-shaped cross section, and two end plates respectively mounted on the left and right ends of the shell, the three of which together form an accommodating cavity, in which a circuit board is arranged; the shell comprises an upper shell and a lower shell joined up and down, the cross sections of the upper shell and the lower shell are both U-shaped; the upper and lower ends of the two end plates are respectively detachably fixed to the upper shell and the lower shell; the circuit board is arranged horizontally, and is clamped between the two side walls of the upper shell or between the two side walls of the lower shell.

[0006] The utility model adopts the above-mentioned technical solution. By setting the shell to an upper shell and a lower shell with U-shaped cross-sections and connected up and down, when the circuit board needs to be repaired, the two end plates are first removed, and then the upper shell and the lower shell are detached. At this time, although the circuit board is still stuck on the upper shell or the lower shell, its board surface is exposed and can be repaired. Therefore, compared with the prior art, when the circuit board in the LVDS signal box fails and needs to be repaired, the circuit board needs to be pulled out from the end of the shell, which is inconvenient to operate and may also cause damage to the circuit board and the shell due to friction. The utility model does not need to pull the circuit board out of the end of the shell for repair, which is more convenient to operate and will not wear the circuit board.

[0007] Furthermore, the upper shell is provided with left and right through limit ridges / limit slots at both ends of its U-shape, and the lower shell is provided with left and right through limit slots / limit ridges at both ends of its U-shape, and the limit ridges are embedded in the limit slots; with this arrangement, the upper shell and the lower shell are accurately positioned when joined, ensuring installation accuracy.

[0008] Furthermore, a plurality of connectors are provided on both sides of the circuit board, and connector vias corresponding to the connectors are provided on the two end plates; connector vias are provided on the end plates to facilitate connection of external circuits with the connectors.

[0009] Furthermore, it also includes an annular left sheath and a right sheath; one end of the left sheath is sleeved on the left end of the shell, and the other end extends outward and exceeds the joint on the left side; one end of the right sheath is sleeved on the right end of the shell, and the other end extends outward and exceeds the joint on the right side; the left sheath and the right sheath are provided to protect the joints on the left and right sides to avoid collision damage to the joints on both sides.

[0010] Furthermore, a plurality of first convex strips are provided on the two inner side walls of the upper shell body relative to each other, and the plurality of first convex strips are arranged at intervals up and down and all pass through the upper shell body in the left-right direction, and a slot for clamping the end of the circuit board is formed between any two adjacent first convex strips; with such a configuration, the clamping structure is simple, and the two ends of the circuit board can be respectively clamped in the slots of the two side walls of the upper shell body; and, when different circuit boards are installed, they can be matched with different slots to adapt to their heights.

[0011] Furthermore, a plurality of second convex strips are provided on the two inner side walls of the lower shell body relative to each other, and the plurality of second convex strips are spaced apart vertically and pass through the lower shell body in the left-right direction, and a slot for clamping the end of the circuit board is formed between any two adjacent second convex strips; with such a configuration, the clamping structure is simple, and the two ends of the circuit board can be respectively clamped in the slots of the two side walls of the lower shell body; and, when different circuit boards are installed, they can be matched with different slots to adapt to their heights.

[0012] Furthermore, a display screen is provided in the accommodating cavity, and the display screen is mounted on the top wall of the upper shell, and a square hole opposite to the middle area of ​​the display screen is opened on the upper shell; the display screen is electrically connected to the circuit board; the shell is set to a structural form in which the upper shell and the lower shell are connected, which makes it more convenient to disassemble and assemble the display screen.

[0013] Furthermore, it also includes a plurality of first screws and second screws. The left end surfaces of the upper shell and the lower shell are each provided with a first screw hole, and the first screw passes through the left sleeve and the left end plate in sequence and then cooperates with the first screw hole; the right end surfaces of the upper shell and the lower shell are each provided with a second screw hole, and the second screw passes through the right sleeve and the right end plate in sequence and then cooperates with the second screw hole; the left sleeve and the left end plate are fixed to the upper shell and the lower shell by the first screw, and the right sleeve and the right end plate are fixed to the upper shell and the lower shell by the second screw. The fixation is firm and reliable, and it is also very convenient to disassemble.

[0014] Furthermore, the upper shell, the lower shell and the end plate are all made of metal, and the left sheath and the right sheath are both made of plastic.

[0015] Compared with the prior art, the utility model has the beneficial effects that the circuit board does not need to be pulled out from the end of the shell for maintenance, the operation is more convenient, and the circuit board will not be worn. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is an exploded view of the utility model;

[0018] Figure 3 for Figure 2 A magnified view of middle;

[0019] Figure 4 for Figure 2 Enlarged view of B.

[0020] Markings in the figure: 1-upper shell, 2-lower shell, 3-end plate, 4-first screw hole, 5-left cover, 6-right cover, 7-circuit board, 8-display screen, 9-first screw, 10-second screw, 11-connector, 12-connector through hole, 13-limiting convex strip, 14-limiting slot, 15-first convex strip, 16-second convex strip. DETAILED DESCRIPTION

[0021] The utility model is described in detail below in conjunction with the accompanying drawings.

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] This embodiment provides a LVDS signal box that is easy to maintain. Figure 1-Figure 4As shown, it comprises a shell with a U-shaped cross section, and two end plates 3 respectively installed at the left and right ends of the shell, the three of which together form an accommodating cavity, in which a circuit board 7 is arranged; the shell comprises an upper shell 1 and a lower shell 2 joined up and down, and the cross sections of the upper shell 1 and the lower shell 2 are both U-shaped; the upper and lower ends of the two end plates 3 are respectively detachably fixed to the upper shell 1 and the lower shell 2; the circuit board 7 is arranged horizontally, and is clamped between the two side walls of the upper shell 1 or between the two side walls of the lower shell 2;

[0024] The upper shell 1 is provided with left-right through-limiting convex strips 13 / limiting card slots 14 at both ends of its U-shape, and the lower shell 2 is provided with left-right through-limiting card slots 14 / limiting convex strips 13 at both ends of its U-shape, and the limiting convex strips 13 are embedded in the limiting card slots 14; that is, it can be: the upper shell 1 is provided with left-right through-limiting convex strips 13 at both ends of its U-shape, and the lower shell 2 is provided with left-right through-limiting card slots 14 at both ends of its U-shape; it can also be: the upper shell 1 is provided with left-right through-limiting card slots 14 at both ends of its U-shape, and the lower shell 2 is provided with left-right through-limiting convex strips 13 at both ends of its U-shape; as Figure 3-Figure 4 As shown, the structure in this embodiment is the latter;

[0025] A plurality of connectors 11 are provided on both sides of the circuit board 7, and connector holes 12 corresponding to the connectors 11 are provided on the two end plates 3;

[0026] It also includes an annular left sheath 5 and a right sheath 6; one end of the left sheath 5 is sleeved on the left end of the shell, and the other end extends outward and exceeds the left joint 11; one end of the right sheath 6 is sleeved on the right end of the shell, and the other end extends outward and exceeds the right joint 11;

[0027] A plurality of first ridges 15 are provided on the two inner side walls of the upper housing 1. The plurality of first ridges 15 are arranged at intervals in the upper and lower directions and penetrate the upper housing 1 in the left-right direction. A slot for clamping the end of the circuit board 7 is formed between any two adjacent first ridges 15. In this embodiment, three first ridges 15 are provided on the two inner side walls of the upper housing 1.

[0028] A plurality of second convex strips 16 are provided on the two inner side walls of the lower housing 2. The plurality of second convex strips 16 are arranged at intervals in the upper and lower parts and penetrate the lower housing 2 in the left and right directions. A slot for clamping the end of the circuit board 7 is formed between any two adjacent second convex strips 16. In this embodiment, three second convex strips 16 are provided on the two inner side walls of the lower housing 2.

[0029] A display screen 8 is also provided in the accommodating cavity. The display screen 8 is mounted on the top wall of the upper shell 1. A square hole is provided on the upper shell 1, which is opposite to the middle area of ​​the display screen 8. The display screen 8 is electrically connected to the circuit board 7.

[0030] It also includes a plurality of first screws 9 and second screws 10. The left end surfaces of the upper shell 1 and the lower shell 2 are each provided with a first screw hole 17, and the first screw 9 sequentially passes through the left sheath 5 and the left end plate 3 and then cooperates with the first screw hole 17; the right end surfaces of the upper shell 1 and the lower shell 2 are each provided with a second screw hole, and the second screw 10 sequentially passes through the right sheath 6 and the right end plate 3 and then cooperates with the second screw hole; in this embodiment, it includes four first screws 9, and the left end surfaces of the upper shell 1 and the lower shell 2 are each provided with two first screw holes 17, and the four first screws 9 sequentially pass through the left sheath 5 and the four corners of the left end plate 3 and then cooperate with the first screw holes 17; it includes four second screws 10, and the right end surfaces of the upper shell 1 and the lower shell 2 are each provided with two second screw holes, and the four second screws 10 sequentially pass through the right sheath 6 and the four corners of the right end plate 3 and then cooperate with the second screw holes;

[0031] The upper shell 1, the lower shell 2 and the end plate 3 are all made of metal, and the left sheath 5 and the right sheath 6 are both made of plastic.

[0032] The utility model adopts the above-mentioned technical solution. By setting the shell to an upper shell 1 and a lower shell 2 with U-shaped cross-sections and connected up and down, when the circuit board 7 needs to be repaired, the two end plates 3 are first removed, and then the upper shell 1 and the lower shell 2 are disengaged. At this time, although the circuit board 7 is still stuck on the upper shell 1 or the lower shell 2, its board surface is exposed and can be repaired. Therefore, compared with the prior art, when the circuit board in the LVDS signal box fails and needs to be repaired, it is necessary to pull the circuit board out from the end of the shell, which is inconvenient to operate and may also cause damage to the circuit board and the shell due to friction. The utility model does not need to pull the circuit board out from the end of the shell for repair, which is more convenient to operate and will not wear the circuit board.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An LVDS signal box that is easy to maintain, comprising a housing with a U-shaped cross section, and two end plates (3) respectively mounted on the left and right ends of the housing, the three of which together form a receiving cavity, wherein a circuit board (7) is arranged in the receiving cavity; the characteristics are: The shell comprises an upper shell (1) and a lower shell (2) connected up and down, and the cross-sections of the upper shell (1) and the lower shell (2) are both U-shaped; the upper and lower ends of the two end plates (3) are detachably fixed to the upper shell (1) and the lower shell (2) respectively; the circuit board (7) is arranged horizontally and is clamped between the two side walls of the upper shell (1) or between the two side walls of the lower shell (2).

2. The LVDS signal box that is easy to maintain according to claim 1, characterized in that: The upper shell (1) is provided with left-right through-going limiting convex strips (13) / limiting slots (14) at both ends of its U-shape, and the lower shell (2) is provided with left-right through-going limiting slots (14) / limiting convex strips (13) at both ends of its U-shape, and the limiting convex strips (13) are embedded in the limiting slots (14).

3. The LVDS signal box that is easy to maintain according to claim 1, characterized in that: A plurality of connectors (11) are provided on both the left and right sides of the circuit board (7), and connector through holes (12) corresponding to the connectors (11) are provided on both the end plates (3).

4. The LVDS signal box that is easy to maintain according to claim 3, characterized in that: It also comprises an annular left sheath (5) and a right sheath (6); one end of the left sheath (5) is sleeved on the left end of the shell, and the other end protrudes outwards and exceeds the joint (11) on the left side; one end of the right sheath (6) is sleeved on the right end of the shell, and the other end protrudes outwards and exceeds the joint (11) on the right side.

5. The LVDS signal box that is easy to maintain according to claim 1, characterized in that: A plurality of first convex strips (15) are provided on both inner side walls of the upper shell (1) and are opposite to each other. The plurality of first convex strips (15) are arranged at intervals in the upper and lower parts and penetrate the upper shell (1) in the left-right direction. A slot for clamping the end of the circuit board (7) is formed between any two adjacent first convex strips (15).

6. The LVDS signal box that is easy to maintain according to claim 5, characterized in that: A plurality of second convex strips (16) are provided on both inner side walls of the lower shell (2) opposite to each other. The plurality of second convex strips (16) are arranged at intervals in the upper and lower parts and penetrate the lower shell (2) in the left-right direction. A slot for clamping the end of the circuit board (7) is formed between any two adjacent second convex strips (16).

7. The LVDS signal box that is easy to maintain according to claim 1, characterized in that: A display screen (8) is also provided in the accommodating cavity. The display screen (8) is mounted on the top wall of the upper shell (1). A square hole is provided on the upper shell (1) and is opposite to the middle area of ​​the display screen (8). The display screen (8) is electrically connected to the circuit board (7).

8. The LVDS signal box that is easy to maintain according to claim 4, characterized in that: The upper shell (1) and the lower shell (2) further comprise a plurality of first screws (9) and second screws (10). The left end surfaces of the upper shell (1) and the lower shell (2) are each provided with a first screw hole (17). The first screw (9) passes through the left protective sleeve (5) and the left end plate (3) in sequence and then engages with the first screw hole (17). The right end surfaces of the upper shell (1) and the lower shell (2) are each provided with a second screw hole. The second screw (10) passes through the right protective sleeve (6) and the right end plate (3) in sequence and then engages with the second screw hole.

9. The LVDS signal box that is easy to maintain according to claim 4, characterized in that: The upper shell (1), the lower shell (2) and the end plate (3) are all made of metal, and the left protective sleeve (5) and the right protective sleeve (6) are both made of plastic.

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