Dustproof PHM printed board storage rack

Abstract

The utility model belongs to the technical field of printed circuit boards, and particularly relates to a dustproof PHM printed board storage rack which comprises a plurality of box bodies connected in sequence, U-shaped storage racks are slidably connected in the box bodies, printed board fixing assemblies are installed on the storage racks and the box bodies, each printed board fixing assembly comprises a bottom plate and a containing groove, and the containing grooves are formed in the bottom plates. The bottom plate is installed on the side wall of the storage frame in a sliding mode, and first springs are symmetrically and fixedly connected to the side, opposite to the storage frame, of the bottom plate; the printed board is placed on the supporting seat, the supporting seat and the storage frame are matched to clamp the upper end and the lower end of the printed board, the clamping piece obliquely abuts against the printed board to clamp the front end and the rear end of the printed board, and the side baffles limit the printed board from the left end and the right end, so that the printed board is stably stored, abrasion caused by shaking of the printed board is reduced, and the printed board is prevented from being damaged. And the storage requirements of printed boards of various sizes are met.

Description

Technical Field

[0001] The utility model relates to the technical field of printed circuit boards, in particular to a dustproof PHM printed circuit board storage rack. Background Art

[0002] Vehicle health management (PHM) systems have become a popular topic in the rail transit sector in recent years. Existing PHM systems analyze and process train data through their built-in main control modules to determine the train's health. Printed circuit boards (PCBs) are a key electronic component in PHM systems, supporting and facilitating the main control modules.

[0003] After the printed circuit boards are produced, they need to be placed on storage racks for storage. The storage space of existing storage racks is fixed and cannot be adjusted according to the size of the printed circuit boards, which causes the printed circuit boards to shake and tilt when placed on the storage racks.

[0004] The existing Chinese patent with announcement number CN220945330U discloses a storage rack for printed circuit boards, which relates to the field of printed circuit board production. The key points of its technical solution are: it includes a support frame, on which a plurality of vertical plates are arrayed, and a storage cavity is formed between adjacent vertical plates. A vertically rotating flap is provided in the storage cavity, and a clamping portion for fixing the circuit board is provided on one side of the flap, and a supporting portion is provided on the other side of the flap.

[0005] With respect to the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: the circuit board of the device is clamped by its own gravity, and when the support frame is subjected to external force, the circuit board will shake, and its clamping stability is poor, which needs to be improved; therefore, to address the above problems, a dust-proof PHM printed circuit board storage rack is proposed. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the utility model provides a dustproof PHM printed circuit board storage rack.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: the dustproof PHM printed circuit board storage rack described in the present invention comprises a plurality of box bodies connected in sequence, the interior of the box body is slidably connected to a U-shaped storage rack, the storage rack and the box body are equipped with a printed circuit board fixing assembly, the printed circuit board fixing assembly comprises a bottom plate and a receiving groove, the bottom plate is slidably mounted on the side wall of the storage rack, the bottom plate and the opposite side of the storage rack are symmetrically fixedly connected with a spring, the receiving groove is opened on the upper side wall of the box body, and the interior of the receiving groove is rotatably connected to a card through an axis. The card is fixedly connected to the opposite side of the storage slot with a second spring. When storing the printed circuit boards required for PHM host production, the storage rack is pulled out upwards and the printed circuit boards are placed on the support seat. The support seat slides upwards through the elastic force of the first spring and cooperates with the storage rack to clamp the printed circuit boards from the upper and lower ends. Then the storage rack is inserted into the box body for storage. At this time, the card is tilted against the printed circuit board through the elastic force of the second spring, and then the printed circuit board is clamped from the front and rear ends, so that the printed circuit board is kept stably stored, reducing the wear caused by the shaking of the circuit board. It is suitable for the storage needs of printed circuit boards of various sizes.

[0008] Preferably, the top of the base plate is symmetrically and slidingly connected to an L-shaped support seat.

[0009] Preferably, the lower side walls of the two support seats are threadedly connected with a bidirectional screw, and both ends of the bidirectional screw are rotatably connected to the base plate.

[0010] Preferably, a side baffle is fixedly connected to the top of the support seat, and the side baffle limits the printed circuit board at the left and right ends. By rotating the two support seats to slide relative to each other, the spacing of the side baffles can be adjusted according to the length of the printed circuit board, thereby flexibly adjusting according to the size of the printed circuit board.

[0011] Preferably, several side walls of the box body are fixedly connected with connecting plates, and access components are installed on the connecting plates and the box body. The access components include several springs three, and the springs three are fixedly installed at the bottom of the inner wall of the box body.

[0012] Preferably, the access assembly further comprises a plurality of limiting protrusions, and the limiting protrusions are fixedly mounted on the bottom of the inner wall of the box body.

[0013] Preferably, the storage and access component also includes a plurality of slide grooves, which are opened on the top of the connecting plate, and an L-shaped card block is slidably connected to the slide groove. When the storage rack is inserted into the box body, the card block slides to the top of the storage rack by the elastic force of spring four, and then cooperates with the limiting protrusion to stably fix the storage rack in the box body to prevent the storage rack from accidentally falling out. When the printed board needs to be taken out, the card block is pushed to slide away from the storage rack, and the storage rack is inserted into the box body by the elastic force of spring three, which makes it convenient to pull out the storage rack and then take out the printed board.

[0014] Preferably, a spring four is fixedly connected to the opposite side of the block and the slide slot, and the length of the storage rack plus the length of the limiting protrusion is the same as the length of the internal space of the box body.

[0015] Preferably, a dust shield is fixedly connected to the top of the storage rack. When the storage rack is inserted into the box body, the dust shield blocks the storage slot to prevent dust from entering the box body, thereby improving the dust-proof storage effect.

[0016] The utility model is beneficial in that:

[0017] 1. The utility model places the printed circuit board on a support base, and the support base cooperates with the storage rack to clamp the printed circuit board from the upper and lower ends. The card is tilted against the printed circuit board to clamp the printed circuit board from the front and rear ends. The side baffles limit the printed circuit board from the left and right ends, so that the printed circuit board can be stored stably, reducing the wear caused by the shaking of the circuit board. It is suitable for the storage needs of printed circuit boards of various sizes.

[0018] 2. The card block of the utility model cooperates with the limiting protrusion to stably fix the storage rack in the box body to prevent the storage rack from accidentally falling out. When the printed board needs to be taken out, the card block is pushed to slide away from the storage rack. The storage rack is inserted into the box body through the elastic force of spring three, which makes it convenient to pull out the storage rack and then take out the printed board. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a cross-sectional view of the box body of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the printed circuit board fixing assembly of the utility model;

[0023] Figure 4 For this utility model Figure 3 Schematic diagram of the A structure;

[0024] Figure 5 This is a schematic diagram of the structure of the access component of the utility model.

[0025] In the figure: 1. Box body; 2. Storage rack; 3. Printed circuit board fixing assembly; 31. Bottom plate; 32. Spring 1; 33. Storage slot; 34. Card; 35. Spring 2; 36. Support seat; 37. Bidirectional screw; 38. Side baffle; 4. Connecting plate; 5. Access assembly; 51. Spring 3; 52. Limiting protrusion; 53. Slide groove; 54. Block; 55. Spring 4; 6. Dust shield. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example 1

[0028] See also Figure 1-4 As shown, a dustproof PHM printed circuit board storage rack includes several box bodies 1 connected in sequence. A U-shaped storage rack 2 is slidably connected to the interior of the box body 1. A printed circuit board fixing assembly 3 is installed on the storage rack 2 and the box body 1. The printed circuit board fixing assembly 3 includes a bottom plate 31 and a storage groove 33. The bottom plate 31 is slidably installed on the side wall of the storage rack 2. The bottom plate 31 and the opposite side of the storage rack 2 are symmetrically fixedly connected with a spring 32. The storage groove 33 is opened on the upper side wall of the box body 1. The interior of the storage groove 33 is connected to a card 34 through an axis of rotation. The card 34 and the opposite side of the storage groove 33 are fixedly connected. The side is fixedly connected with a spring 2 35. When storing the printed circuit boards required for the production of the PHM host, the storage rack 2 is pulled out upward and the printed circuit boards are placed on the support seat 36. The support seat 36 slides upward through the elastic force of the spring 1 32 and cooperates with the storage rack 2 to clamp the printed circuit boards from the upper and lower ends. Then the storage rack 2 is inserted into the box body 1 for storage. At this time, the card 34 is tilted against the printed circuit board through the elastic force of the spring 2 35, and then the printed circuit board is clamped from the front and rear ends, so that the printed circuit board is kept stably stored, reducing the wear caused by the shaking of the circuit board. It is suitable for the storage needs of printed circuit boards of various sizes.

[0029] An L-shaped support base 36 is symmetrically and slidably connected to the top of the bottom plate 31 .

[0030] A bidirectional lead screw 37 is threadedly connected to the lower side walls of the two support seats 36 , and both ends of the bidirectional lead screw 37 are rotatably connected to the bottom plate 31 .

[0031] A side baffle 38 is fixedly connected to the top of the support seat 36. The side baffle 38 limits the printed circuit board at the left and right ends. By rotating the bidirectional screw 37, the two support seats 36 are driven to slide relative to each other. The spacing of the side baffles 38 can be adjusted according to the length of the printed circuit board, so that it can be flexibly adjusted according to the size of the printed circuit board.

[0032] Example 2

[0033] For comparison with Example 1, please refer to Figure 5 As shown, the utility model provides another embodiment, the side walls of several box bodies 1 are fixedly connected with connecting plates 4, and access components 5 are installed on the connecting plates 4 and the box bodies 1. The access components 5 include several springs 51, and the springs 51 are fixedly installed at the bottom of the inner wall of the box body 1.

[0034] The access assembly 5 further includes a plurality of limiting protrusions 52 , which are fixedly mounted on the bottom of the inner wall of the box body 1 .

[0035] The access component 5 also includes a plurality of slide grooves 53, which are opened on the top of the connecting plate 4. An L-shaped block 54 is slidably connected to the slide groove 53. When the storage rack 2 is inserted into the box body 1, the block 54 slides to the top of the storage rack 2 by the elastic force of the spring four 55, and then cooperates with the limiting protrusion 52 to stably fix the storage rack 2 in the box body 1 to prevent the storage rack 2 from accidentally falling out. When the printed circuit board needs to be taken out, the block 54 is pushed to slide away from the storage rack 2. The storage rack 2 is inserted into the box body 1 by the elastic force of the spring three 51, which makes it convenient to pull out the storage rack 2 and then take out the printed circuit board.

[0036] A spring 55 is fixedly connected to the opposite side of the block 54 and the slide groove 53. The length of the storage rack 2 plus the length of the limiting protrusion 52 is the same as the length of the internal space of the box body 1.

[0037] A dust shield 6 is fixedly connected to the top of the storage rack 2. When the storage rack 2 is inserted into the box body 1, the dust shield 6 blocks the storage slot 33 to prevent dust from entering the box body 1, thereby improving the dust-proof storage effect.

[0038] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art.

[0039] Working principle: When storing printed circuit boards required for PHM host production, pull out the storage rack 2 upward and place the printed circuit boards on the support seat 36. The support seat 36 slides upward through the elastic force of spring 1 32 to cooperate with the storage rack 2 to clamp the printed circuit boards from the upper and lower ends. Then, insert the storage rack 2 into the box body 1 for storage. At this time, the card 34 is tilted against the printed circuit board through the elastic force of spring 2 35, and then the printed circuit board is clamped from the front and rear ends, so that the printed circuit board remains stably stored, reducing the wear caused by the shaking of the circuit board. It is suitable for the storage needs of printed circuit boards of various sizes.

[0040] The side baffles 38 limit the printed circuit board at the left and right ends. By rotating the bidirectional screw 37 to drive the two support seats 36 to slide relative to each other, the spacing of the side baffles 38 can be adjusted according to the length of the printed circuit board, thereby flexibly adjusting according to the size of the printed circuit board.

[0041] When the storage rack 2 is inserted into the box body 1, the block 54 slides to the top of the storage rack 2 by the elastic force of the spring four 55, and then cooperates with the limiting protrusion 52 to stably fix the storage rack 2 in the box body 1, and blocks the storage groove 33 through the dust shield 6 to prevent dust from entering the box body 1, thereby improving the dust-proof storage effect, realizing closed storage, and preventing the storage rack 2 from accidentally falling out. When the printed circuit board needs to be taken out, push the block 54 to slide away from the storage rack 2, and the storage rack 2 is inserted into the box body 1 by the elastic force of the spring three 51, which makes it convenient to pull out the storage rack 2 and then take out the printed circuit board.

[0042] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A dustproof PHM printed circuit board storage rack, comprising a plurality of boxes (1) connected in sequence, characterized in that: The box body (1) is slidably connected to a U-shaped storage rack (2), and a printed circuit board fixing assembly (3) is installed on the storage rack (2) and the box body (1). The printed circuit board fixing assembly (3) includes a bottom plate (31) and a receiving groove (33). The bottom plate (31) is slidably installed on the side wall of the storage rack (2), and a spring 1 (32) is symmetrically fixedly connected to the opposite side of the bottom plate (31) and the storage rack (2). The receiving groove (33) is opened on the upper side wall of the box body (1), and a card (34) is connected to the inside of the receiving groove (33) through an axis rotation. The card (34) is fixedly connected to the opposite side of the receiving groove (33) with a spring 2 (35).

2. The dustproof PHM printed circuit board storage rack according to claim 1, characterized in that: The top of the bottom plate (31) is symmetrically and slidingly connected to an L-shaped support seat (36).

3. The dustproof PHM printed circuit board storage rack according to claim 2, characterized in that: The lower side walls of the two support seats (36) are threadedly connected with a bidirectional screw (37), and both ends of the bidirectional screw (37) are rotatably connected to the bottom plate (31).

4. The dustproof PHM printed circuit board storage rack according to claim 2, characterized in that: The top of the support seat (36) is fixedly connected with a side baffle (38).

5. The dustproof PHM printed circuit board storage rack according to claim 1, characterized in that: Several side walls of the box body (1) are fixedly connected with connecting plates (4), and a storage and access assembly (5) is installed on the connecting plates (4) and the box body (1). The storage and access assembly (5) includes several springs (51), and the springs (51) are fixedly installed at the bottom of the inner wall of the box body (1).

6. The dustproof PHM printed circuit board storage rack according to claim 5, characterized in that: The access assembly (5) further comprises a plurality of limiting protrusions (52), and the limiting protrusions (52) are fixedly mounted on the bottom of the inner wall of the box body (1).

7. The dustproof PHM printed circuit board storage rack according to claim 5, characterized in that: The access assembly (5) further comprises a plurality of slide grooves (53), wherein the slide grooves (53) are provided on the top of the connecting plate (4), and an L-shaped block (54) is slidably connected to the slide grooves (53).

8. The dustproof PHM printed circuit board storage rack according to claim 7, characterized in that: A spring four (55) is fixedly connected to the opposite side of the clamping block (54) and the sliding groove (53).

9. The dustproof PHM printed circuit board storage rack according to claim 1, characterized in that: A dust shield (6) is fixedly connected to the top of the storage rack (2).

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