Protective trolley for PCBA (Printed Circuit Board Assembly) carrying

Abstract

The utility model belongs to the technical field of PCBA product carrying tools of inverters, and particularly relates to a PCBA carrying protection cart which comprises a cart body, a tray, tray idler wheels, clamping elastic pieces, wheels, supporting blocks and a connecting relation of the cart body, the tray, the tray idler wheels, the clamping elastic pieces, the wheels and the supporting blocks. A multi-layer tray push-and-pull design is adopted, each layer of tray can be pushed in and pulled out in a front-and-back mode, PCBA storage and taking are facilitated by combining with a hand position groove designed in the tray, the position of the tray is limited through a clamping elastic piece, and the tray is prevented from sliding out of the PCBA storage and taking cavity; supporting blocks are designed at the bottom of the tray and used for supporting the PCBA, and devices on the PCBA are prevented from making contact with and colliding with the bottom of the tray.

Description

Technical Field

[0001] The utility model relates to the technical field of PCBA product handling tools for inverters, and particularly relates to a PCBA handling and protection trolley. Background Art

[0002] PCBA: printed circuit board assembly refers to the entire process of obtaining a finished product after the PCB bare board is pasted and then plugged.

[0003] During the in-factory handling of PCBA, due to improper protection, situations such as component collision and detachment that cause damage to PCBA are likely to occur. Most of the previous trolleys are in the form of multi-layer flat plates, which are inconvenient for access, and the components on the PCBA are prone to collide with the partitions on the trolley. Content of the Utility Model

[0004] The purpose of the utility model is to solve the technical problems existing in the background art. For this reason, a PCBA handling and protection trolley is provided.

[0005] In order to achieve the above purpose, the technical solutions adopted by the utility model are as follows:

[0006] A PCBA handling and protection trolley includes a trolley body and multiple layers of trays;

[0007] The trolley body is provided with multiple layers of PCBA access cavities, and each layer of PCBA access cavity is provided with a tray inlet. The tray is slidably arranged in the PCBA access cavity through the tray inlet;

[0008] At the position of the trolley body close to the tray inlet, a clamping elastic piece is installed, and the clamping elastic piece abuts against the tray.

[0009] The following is a further limited technical solution of the utility model. Tray rollers are installed on both sides of the tray, and roller grooves are opened on both inner walls of the PCBA access cavity. The tray rollers are rotatably arranged in the roller grooves.

[0010] The following is a further limited technical solution of the utility model. The tray rollers include multiple small rollers, and the small rollers are fixedly connected to a roller shaft, and the roller shaft penetrates through the tray.

[0011] The following is a further limited technical solution of the utility model. The small rollers on the same side are connected by a connecting belt, the small rollers are set as H-shaped rollers, and the connecting belt is arranged in the groove in the middle of the H-shaped rollers.

[0012] The following is a further limited technical solution of the utility model. The clamping elastic piece is fixed on the trolley body by screws.

[0013] The following are the further defined technical solutions of the present utility model. The tray is provided with a PCBA placement groove, and an anti-static foam is placed at the bottom of the PCBA placement groove.

[0014] The following are the further defined technical solutions of the present utility model. A plurality of hand slots are opened around the inner wall of the PCBA placement groove.

[0015] The following are the further defined technical solutions of the present utility model. A plurality of support blocks are placed at the bottom of the PCBA placement groove, and there is a PCBA placement gap between the support blocks and the bottom of the PCBA placement groove.

[0016] The following are the further defined technical solutions of the present utility model. A plurality of stud holes are opened at the bottom of the PCBA placement groove, and the studs of the support blocks are inserted into the stud holes.

[0017] The following are the further defined technical solutions of the present utility model. Wheels are installed at the bottom of the trolley body.

[0018] Compared with the prior art, the present utility model has the following technical effects:

[0019] The present utility model adopts a multi-layer tray push-pull design. Each layer of the tray can be pushed forward and pulled out. Combined with the hand slots designed on the tray, it is convenient to access the PCBA. The position of the tray is restricted by the snap spring to prevent the tray from sliding out of the PCBA access cavity. Support blocks are designed at the bottom of the tray to support the PCBA and prevent the components on the PCBA from contacting and hitting the bottom of the tray.

[0020] The following further describes the present utility model in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the embodiments or the prior art. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 is a schematic structural diagram of Embodiment 1 of the present utility model;

[0023] Figure 2 is a schematic structural diagram of the tray in Embodiment 1 of the present utility model;

[0024] Figure 3 is a schematic structural diagram of the tray in Embodiment 2 of the present utility model;

[0025] Figure 4It is a schematic structural diagram of Embodiment 2 of the present utility model;

[0026] Figure 5 It is Figure 4 an enlarged structural view of part A in

[0027] Reference numerals: 1, trolley main body; 2, tray; 3, tray roller; 301, small roller; 302, roller shaft; 303, connecting belt; 4, snap spring; 5, wheel; 6, hand position groove; 7, support block; 8, column foot hole; 9, roller groove. Detailed implementation manners

[0028] In order to make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will describe the detailed implementation manners of the present utility model with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0030] In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0031] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific situations.

[0032] Embodiment 1

[0033] As Figures 1 - 5 shown, a PCBA handling and protection trolley is provided, which adopts a multi-layer tray 2 push-pull design.

[0034] The specific structure is as follows:

[0035] As shown Figure 1 in FIG. Figure 1 , the cart body 1 is provided with multiple layers of PCBA storage cavities. In this embodiment, there are 6 layers of PCBA storage cavities. Each layer of PCBA storage cavity is provided with a tray inlet, and the tray 2 is slidably arranged in the PCBA storage cavity through the tray inlet. Tray inlets are provided on both the front and rear sides of the cart body 1. Therefore, the tray 2 can be pushed into the PCBA storage cavity from the tray inlets on the front and rear sides, or pulled out from the front and rear of the PCBA storage cavity.

[0036] To prevent the tray 2 from sliding out of the PCBA storage cavity during handling, a clamping spring piece 4 is installed at the position of the cart body 1 close to the tray inlet, and the clamping spring piece 4 abuts against the tray 2. There are clamping spring pieces 4 on both the front and rear of the cart body 1. The clamping spring piece 4 is fixed to the cart body 1 by screws, so the clamping spring piece 4 can be detachably installed.

[0037] As shown Figure 1 , Figure 2 , Figure 5 in FIG. Figure 1 , FIG. Figure 2 , and FIG. Figure 5 , to enable the sliding of the tray 2, tray rollers 3 are installed on both sides of the tray 2, and roller grooves 9 are provided on the inner walls of both sides of the PCBA storage cavity. The tray rollers 3 are rotatably arranged in the roller grooves 9. Among them, the tray roller 3 includes a plurality of small rollers 301, a roller shaft 302, and a connecting belt 303; the small rollers 301 are fixedly connected to the roller shaft 302, and the roller shaft 302 penetrates through the tray 2. The small rollers 301 on the same side are connected by the connecting belt 303, and the small rollers 301 are set as H-shaped rollers, and the connecting belt 303 is arranged in the groove in the middle of the H-shaped rollers.

[0038] As shown Figure 2 in FIG. Figure 2 , the tray 2 is provided with a PCBA placement groove, and an anti-static foam is placed at the bottom of the PCBA placement groove. The anti-static foam is customized according to the shape and size of the tray 2. A plurality of hand slots 6 are provided around the inner wall of the PCBA placement groove. The hand slots 6 are used as hand positions for taking PCBA, and the opening angle can be arbitrary. The purpose of providing multiple hand slots 6 is to facilitate the taking of different parts of the PCBA.

[0039] Wheels 5 are installed at the bottom of the cart body 1 to facilitate the overall movement and use of the cart.

[0040] Embodiment 2

[0041] As shown Figures 3 - 5 in FIG. Figures 3 - 5 , on the basis of the structure of Embodiment 1, the shape of the tray 2 is changed. Specifically: a plurality of support blocks 7 are placed at the bottom of the PCBA placement groove, and there is a PCBA placement gap between the support blocks 7 and the bottom of the PCBA placement groove. A plurality of stud holes 8 are provided at the bottom of the PCBA placement groove, and the studs of the support blocks 7 are inserted into the stud holes 8.

[0042] The manufacturing material of the support block 7 can be plastic or plastic with foam, which is used to support the PCBA and prevent the components on the PCBA from contacting and hitting the bottom of the tray 2. The support block 7 can be flexibly moved according to the vacant positions (not the component installation positions) on the PCBA. The stud hole 8 is used to fix the stud of the support block 7. The stud of the support block 7 can be pressed or locked at the position of the stud hole 8 at the bottom of the tray 2. The material of the stud of the support block 7 can be plastic or metal.

[0043] In summary, when there are no high components and easily crushable components on the contact surface of the PCBA placed on the tray 2, the trolley of Embodiment 1 can be used. There is no need to open holes at the bottom of the tray 2 and install the support block 7. Only anti-static foam needs to be placed at the bottom of the tray 2 to contact the PCBA. On the contrary, when there are high components and easily crushable components on the contact surface of the PCBA placed on the tray 2, the trolley of Embodiment 2 is used.

[0044] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes, without departing from the scope of the technical solution of the present invention. Therefore, all equivalent changes made according to the shape, structure and principle of the present invention without departing from the content of the technical solution of the present invention shall be covered by the protection scope of the present invention.

Claims

1. A PCBA transport and protection cart, characterized in that: It comprises a cart body (1) and a multi-layer tray (2); The cart body (1) is provided with multiple layers of PCBA storage and access cavities, each layer of the PCBA storage and access cavities is provided with a tray inlet, and the tray (2) is slidably arranged in the PCBA storage and access cavity through the tray inlet; A locking spring (4) is installed at a position of the cart body (1) close to the tray inlet, and the locking spring (4) is in contact with the tray (2).

2. The PCBA transport and protection cart according to claim 1, characterized in that: Tray rollers (3) are installed on both sides of the tray (2), roller grooves (9) are opened on the inner walls on both sides of the PCBA storage and access cavity, and the tray rollers (3) are rollingly arranged in the roller grooves (9).

3. The PCBA transport and protection cart according to claim 2, characterized in that: The tray roller (3) comprises a plurality of small rollers (301), wherein the small rollers (301) are fixedly connected to a roller shaft (302), and the roller shaft (302) passes through the tray (2).

4. The PCBA transport and protection cart according to claim 3, characterized in that: The small rollers (301) on the same side are connected via a connecting belt (303), the small rollers (301) are arranged as H-shaped rollers, and the connecting belt (303) is arranged in a groove in the middle of the H-shaped roller.

5. The PCBA transport and protection cart according to claim 1, characterized in that: The locking spring (4) is fixed to the cart body (1) by means of screws.

6. The PCBA transport and protection cart according to claim 1, characterized in that: The tray (2) is provided with a PCBA placement slot, and anti-static foam is placed at the bottom of the PCBA placement slot.

7. The PCBA transport and protection cart according to claim 1, characterized in that: The tray (2) is provided with a PCBA placement groove, a plurality of support blocks (7) are placed at the bottom of the PCBA placement groove, and a PCBA placement gap exists between the support blocks (7) and the bottom of the PCBA placement groove.

8. The PCBA transport and protection cart according to claim 7, characterized in that: A plurality of column foot holes (8) are provided at the bottom of the PCBA placement slot, and the column feet of the support block (7) are inserted into the column foot holes (8).

9. The PCBA transport and protection cart according to any one of claims 6 to 8, characterized in that: A plurality of hand position grooves (6) are provided around the groove wall of the PCBA placement groove.

10. The PCBA transport and protection cart according to any one of claims 1 to 8, characterized in that: Wheels (5) are installed at the bottom of the cart body (1).

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