Circuit board carrier

Abstract

The utility model relates to the technical field of circuit board processing, and discloses a circuit board carrier, which comprises a clamping assembly, a base, at least one group of limiting assembly and a buffer assembly, the clamping assembly comprises an upper cover and a bearing plate, the bearing plate is used for placing a circuit board, a first end of the upper cover is rotatably connected to the bearing plate, and the upper cover is used for clamping the circuit board when the upper cover and the bearing plate are closed; the base is used for placing the clamping assembly; the limiting assemblies are fixed to the base, each limiting assembly comprises two limiting plates oppositely arranged in the first direction, and the two limiting plates are located on the two sides of the upper cover correspondingly and used for limiting rotation of the upper cover from the two sides. The buffering assembly is arranged on the base, and in the rotating process of the upper cover, the second end of the upper cover can extrude the buffering assembly and is closed with the bearing plate after being buffered by the buffering assembly. According to the utility model, the movement accuracy of the upper cover is ensured through the limiting assembly, components are prevented from being crushed, the circuit board is prevented from being damaged due to too fast falling speed of the upper cover through the buffer assembly, and the yield of the circuit board is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing, in particular to a circuit board carrier. Background Art

[0002] Surface Mount Technology (SMT) is a technology and process used in the electronics assembly industry. It involves mounting leadless or short-lead surface mount components on the surface of a printed circuit board (PCB) or other substrate, then soldering them together through methods such as reflow or dip soldering. The basic SMT process includes screen printing (or dispensing), placement (curing), reflow soldering, cleaning, testing, and repair.

[0003] During the SMT circuit board cleaning process, a circuit board carrier is typically used to hold the circuit board for cleaning. Existing circuit board carriers consist of a support base and a cover, connected to the support base by a hinge. To use, the circuit board is first placed on the support base, and then the cover is closed to secure the board. However, due to the large amount of movement of the hinge, the cover is prone to shaking during closing, and the edge of the cover can crush components on the circuit board, resulting in defective products.

[0004] Therefore, a circuit board carrier is urgently needed to solve the above technical problems. Utility Model Content

[0005] Based on the above, the purpose of the present invention is to provide a circuit board carrier that can improve the movement accuracy of the upper cover to avoid crushing the components on the circuit board, and at the same time prevent the upper cover from falling too fast and causing damage to the circuit board.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] Circuit board carrier, including:

[0008] A clamping assembly includes an upper cover and a carrier plate, wherein the carrier plate is used to place a circuit board, a first end of the upper cover is rotatably connected to the carrier plate, and the upper cover and the carrier plate are used to clamp the circuit board when closed;

[0009] a base, on which the clamping assembly is placed;

[0010] At least one set of limiting components is fixed to the base, each set of limiting components includes two limiting plates arranged opposite to each other along a first direction, the two limiting plates are respectively located on both sides of the upper cover, and are used to limit the rotation of the upper cover from both sides;

[0011] The buffer component is arranged on the base. When the upper cover rotates, the second end of the upper cover can squeeze the buffer component and close with the supporting plate after being buffered by the buffer component.

[0012] In some possible embodiments, the buffer assembly includes a fixed block, a sleeve, an abutment ball and an elastic member, the fixed block is fixed to one end of the base, the sleeve is installed on the fixed block, and an opening is provided at one end of the sleeve close to the upper cover, and the diameter of the opening is smaller than the diameter of the abutment ball; the abutment ball is movably arranged in the sleeve, the elastic member is connected between the sleeve and the abutment ball, the elastic member can make the abutment ball partially pass through the opening, and when the upper cover rotates, the second end of the upper cover can push the abutment ball to retract.

[0013] In some possible implementations, a clamping portion is provided on a side of the fixing block close to the base, and the second end of the supporting plate is clamped below the clamping portion.

[0014] In some possible embodiments, there are two groups of the limiting components, which are arranged on the base at intervals along the second direction, wherein the height of the limiting plate near the first end of the upper cover is greater than the height of the limiting plate near the second end of the upper cover.

[0015] In some possible implementations, in each set of the limiting components, the two limiting plates are positionally adjustable along a first direction on the base to accommodate upper covers of different widths.

[0016] In some possible implementations, a smooth guide surface is provided on the upper end of the limiting plate.

[0017] In some possible implementations, positioning plates are respectively fixed to both ends of the base along the second direction, and the positioning plates are used to position the supporting plate.

[0018] In some possible implementations, the supporting plate is provided with a plurality of hollow structures and a plurality of guide holes extending vertically therethrough, and a guide groove is provided on the bottom surface of the supporting plate.

[0019] In some possible embodiments, one of the second end of the upper cover and the supporting plate is provided with a positioning hole, and the other is provided with a positioning column. When the upper cover and the supporting plate are closed, the positioning hole and the positioning column are plugged into each other.

[0020] In some possible implementations, at least one of the second end of the upper cover and the supporting plate is provided with a magnetic member, and when the upper cover and the supporting plate are closed, the second end of the upper cover is magnetically attracted to the supporting plate.

[0021] Beneficial effects of the utility model:

[0022] The circuit board carrier provided by the present invention can limit the flipping movement of the upper cover by arranging a limit component on the base, thereby preventing the upper cover from shaking left and right during the closing process, ensuring the accuracy of the movement position of the upper cover, and avoiding damage to components on the circuit board; by arranging a buffer component on the base, the closing movement of the upper cover is buffered, thereby avoiding damage to the circuit board caused by the upper cover falling too fast; the utility model improves the yield rate of circuit board products and reduces the risk of product quality accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an exploded view of a circuit board carrier and a circuit board provided in an embodiment of the present utility model;

[0024] Figure 2 This is a structural diagram of the base, the limiting assembly and the buffer assembly provided in an embodiment of the present utility model;

[0025] Figure 3 This is a schematic structural diagram of a clamping assembly provided by an embodiment of the present utility model;

[0026] Figure 4 It is a bottom schematic diagram of the carrying plate provided in an embodiment of the present utility model.

[0027] In the picture:

[0028] 100. Circuit board; 1. Clamping assembly; 11. Carrying plate; 111. Hollow structure; 112. Guide hole; 113. Guide groove; 114. Positioning column; 115. Magnetic member; 12. Upper cover; 121. Positioning hole; 122. Protrusion; 13. Hinge; 2. Base; 3. Limiting plate; 4. Buffer assembly; 41. Fixing block; 42. Sleeve; 43. Abutment ball; 44. Clamping portion; 5. Positioning plate. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0030] In the description of this utility model, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0031] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0032] In the description of this utility model, the terms "upper," "lower," "left," and "right," etc., regarding orientations or positions, are based on the orientations or positions shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0033] like Figures 1 to 4 As shown, this embodiment provides a circuit board carrier that can be used to carry and clamp a circuit board 100 during the SMT circuit board cleaning process. The circuit board carrier includes a clamping component 1, a base 2, at least one set of limit components and a buffer component 4.

[0034] The clamping assembly 1 includes a carrier plate 11 and an upper cover 12. The carrier plate 11 is used to place a circuit board 100. The first end of the upper cover 12 is rotatably connected to the first end of the carrier plate 11. When the upper cover 12 and the carrier plate 11 are closed, they clamp the circuit board 100. Specifically, in this embodiment, the upper cover 12 is a frame-shaped member. The frame's surrounding frame is used to press against the edges of the circuit board 100. The middle portion of the frame is hollowed out to avoid components on the circuit board 100. Optionally, the bottom surface of the upper cover 12 is further provided with a plurality of protrusions 122. When the upper cover 12 is closed, the multiple protrusions 122 abut against the edges of the circuit board 100, further enhancing the upper cover 12's clamping reliability on the circuit board 100. Optionally, in this embodiment, the first end of the upper cover 12 is rotatably connected to the first end of the carrier plate 11 via a hinge 13, which provides a simple structure and convenient connection. In other embodiments, the upper cover 12 can also be rotatably connected to the carrier plate 11 via a hinge, a rotating shaft, or other structure, and is not limited to this embodiment.

[0035] The base 2 of this embodiment is used to mount the clamping assembly 1. To operate, first place the carrier plate 11 of the clamping assembly 1 on the base 2, then place the circuit board 100 on the carrier plate 11, and then rotate the upper cover 12 to clamp the circuit board 100. In this embodiment, the base 2 is generally rectangular, with the width of the base 2 being defined as the first direction and the length of the base 2 being defined as the second direction.

[0036] The limiting assembly is fixed to the base 2 and can be specifically arranged in one, two, or multiple groups. Each group of limiting assemblies includes two limiting plates 3 arranged opposite each other along a first direction. The two limiting plates 3 are respectively fixed to the base 2 and are located on both sides of the width direction of the upper cover 12. The distance between the two limiting plates 3 is adapted to the width of the upper cover 12. During the downward flipping process of the upper cover 12, it can pass between the two limiting plates 3. The two limiting plates 3 limit the rotation of the upper cover 12 to prevent the upper cover 12 from deviating left and right and shaking. Optionally, in this embodiment, the limiting plates 3 are fixed to the base 2 by fastening bolts.

[0037] The buffer assembly 4 is disposed at one end of the base 2. During the rotation of the upper cover 12, the second end of the upper cover 12 can press against the buffer assembly 4 and close with the second end of the supporting plate 11 after being buffered by the buffer assembly 4. Optionally, the buffer assembly 4 of this embodiment includes a fixing block 41, a sleeve 42, an abutment ball 43, and an elastic member. The fixing block 41 is fixed to one end of the base 2 by a fastener, and the sleeve 42 is detachably mounted on the fixing block 41, and the sleeve 42 extends along the second direction; an opening is provided at one end of the sleeve 42 close to the upper cover 12, and the diameter of the opening is smaller than the diameter of the abutment ball 43, and the abutment ball 43 is movably arranged in the sleeve 42, and an elastic member is connected between the sleeve 42 and the abutment ball 43. The elastic member can make the abutment ball 43 elastically abut against the opening, and a part of the abutment ball 43 passes through the opening. When the upper cover 12 rotates to a position close to the closed position, the second end of the upper cover 12 can push the abutment ball 43 to retract the abutment ball 43 into the sleeve 42, and then the upper cover 12 continues to rotate downward until it is closed with the supporting plate 11, thereby achieving buffering of the flipping movement of the upper cover 12.

[0038] Optionally, a connecting hole is further provided on the top of the fixing block 41, in which a tightening bolt is installed, and the end of the tightening bolt abuts against the side wall of the sleeve 42. By screwing the tightening bolt, the position of the sleeve 42 on the fixing block 41 can be locked. The above arrangement facilitates adjustment of the installation position of the sleeve 42 on the fixing block 41, that is, adjustment of the position of the abutment ball 43 in the second direction, so as to adapt to upper covers 12 of different lengths. Furthermore, a clamping portion 44 is further provided on the side of the fixing block 41 close to the base 2, and the second end of the supporting plate 11 is clamped to the bottom of the clamping portion 44, so that the second end of the supporting plate 11 can be limited to prevent the supporting plate 11 from tilting upward during the rotation of the upper cover 12.

[0039] Of course, in other embodiments, the buffer component 4 may also adopt other structures and is not limited to this embodiment. For example, the buffer component 4 is a deformable elastic block, and when the upper cover 12 rotates downward, it can contact and squeeze the elastic block, causing the elastic block to deform elastically, and then the upper cover 12 continues to rotate downward from this position.

[0040] The circuit board carrier provided in this embodiment can limit the flipping movement of the upper cover 12 by arranging a limit component on the base 2, thereby preventing the upper cover 12 from shaking left and right during the closing process, ensuring the accuracy of the movement position of the upper cover 12, and avoiding crushing of components on the circuit board 100; by arranging a buffer component 4 on the base 2, the closing movement of the upper cover 12 is buffered, thereby avoiding the upper cover 12 falling too fast and causing damage to the circuit board 100; this embodiment improves the product yield of the circuit board 100 and reduces the risk of product quality accidents.

[0041] Optionally, in this embodiment, two groups of limit assemblies are provided, and the two groups of limit assemblies are arranged on the base 2 at intervals along the second direction, wherein the height of the limit plate 3 near the first end of the upper cover 12 is greater than the height of the limit plate 3 near the second end of the upper cover 12. With such an arrangement, the structure is more compact and reasonable, and can better adapt to the rotation trajectory of the upper cover 12. Furthermore, in each group of limit assemblies, the positions of the two limit plates 3 on the base 2 along the first direction are adjustable, so as to adapt to upper covers 12 of different widths. Specifically, a number of mounting holes arranged along the first direction can be opened on the base 2, and the limit plates 3 are fixed to the mounting holes at appropriate positions by bolts, thereby realizing the adjustment of the position of the limit plates 3; or a slide rail extending along the first direction is provided on the base 2, and the limit plate 3 is slidably connected to the slide rail by a slider, and the slider is driven by a screw-nut mechanism, thereby realizing the adjustment of the position of the limit plate 3.

[0042] Furthermore, positioning plates 5 are fixed to both ends of the base 2 along the second direction. The positioning plates 5 are used to position the ends of the carrier plate 11 in the longitudinal direction to prevent the carrier plate 11 from shaking on the base 2 or sliding off the base 2. Optionally, in this embodiment, the upper end of each limit plate 3 is provided with a smooth guide surface to guide the movement of the upper cover 12 and improve the smoothness of the movement of the upper cover 12. At the same time, the top end of each positioning plate 5 is also provided with a smooth guide surface to facilitate the installation of the carrier plate 11.

[0043] During the cleaning process, cleaning liquid is sprayed onto the circuit board 100. To facilitate liquid outflow and prevent accumulation on the circuit board 100 and the clamping assembly 1, the carrier plate 11 of this embodiment is further provided with a plurality of vertically extending hollow structures 111 and a plurality of guide holes 112. Furthermore, the bottom surface of the carrier plate 11 is provided with a plurality of guide grooves 113, which extend toward the edges of the carrier plate 11. This arrangement allows liquid on the circuit board 100 to flow along the hollow structures 111 and guide holes 112 between the carrier plate 11 and the base 2, and then out of the carrier through the guide grooves 113 on the bottom surface of the carrier plate 11. This embodiment effectively reduces the accumulation of waste cleaning liquid and improves the cleaning effect on the circuit board 100.

[0044] Optionally, one of the second end of the upper cover 12 and the second end of the carrier plate 11 is provided with a positioning hole 121, and the other is provided with a positioning post 114. When the upper cover 12 and the carrier plate 11 are closed, the positioning hole 121 and the positioning post 114 are plugged and matched. The above arrangement achieves the positioning of the upper cover 12 and ensures the accuracy of the closed position of the upper cover 12, thereby improving the clamping effect of the circuit board 100. Specifically, in this embodiment, two positioning holes 121 are provided at the second end of the upper cover 12, and two positioning posts 114 are provided on the carrier plate 11. When the upper cover 12 and the carrier plate 11 are closed, the two positioning holes 121 and the two positioning posts 114 are plugged and matched.

[0045] Furthermore, to ensure the secure closure between the upper cover 12 and the carrier plate 11 and enhance the stability of the clamping of the circuit board 100, a magnetic member 115 is provided on at least one of the second end of the upper cover 12 and the second end of the carrier plate 11. When the upper cover 12 and the carrier plate 11 are closed, the second end of the upper cover 12 and the second end of the carrier plate 11 are magnetically attracted to each other. Specifically, in this embodiment, the magnetic member 115 is installed on both the upper cover 12 and the carrier plate 11, resulting in a simple structure and reliable adsorption.

[0046] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A circuit board carrier, characterized in that: include: A clamping assembly (1) comprises a carrier plate (11) and an upper cover (12), wherein the carrier plate (11) is used to place a circuit board (100), a first end of the upper cover (12) is rotatably connected to the carrier plate (11), and the upper cover (12) and the carrier plate (11) are used to clamp the circuit board (100); a base (2), the base (2) being used for placing the clamping assembly (1); At least one set of limiting components is fixed on the base (2), each set of limiting components includes two limiting plates (3) arranged opposite to each other along a first direction, the two limiting plates (3) are respectively located on both sides of the upper cover (12) and are used to limit the rotation of the upper cover (12) from both sides; A buffer assembly (4) is arranged on the base (2); during the rotation of the upper cover (12), the second end of the upper cover (12) can squeeze the buffer assembly (4) and close with the supporting plate (11) after being buffered by the buffer assembly (4).

2. The circuit board carrier according to claim 1, wherein: The buffer assembly (4) comprises a fixed block (41), a sleeve (42), an abutment ball (43) and an elastic member, wherein the fixed block (41) is fixed to one end of the base (2), the sleeve (42) is mounted on the fixed block (41), an opening is provided at one end of the sleeve (42) close to the upper cover (12), and the diameter of the opening is smaller than the diameter of the abutment ball (43); the abutment ball (43) is movably arranged in the sleeve (42), the elastic member is connected between the sleeve (42) and the abutment ball (43), and the elastic member can make the abutment ball (43) partially pass through the opening, and when the upper cover (12) rotates, the second end of the upper cover (12) can push the abutment ball (43) to retract.

3. The circuit board carrier according to claim 2, wherein: A clamping portion (44) is provided on one side of the fixing block (41) close to the base (2), and the second end of the supporting plate (11) is clamped below the clamping portion (44).

4. The circuit board carrier according to claim 1, wherein: Two groups of the limiting components are provided, and the two groups of the limiting components are spaced apart on the base (2) along the second direction, wherein the height of the limiting plate (3) close to the first end of the upper cover (12) is greater than the height of the limiting plate (3) close to the second end of the upper cover (12).

5. The circuit board carrier according to claim 1, wherein: In each group of the limiting components, the two limiting plates (3) are adjustable in position along a first direction on the base (2) to adapt to upper covers (12) of different widths.

6. The circuit board carrier according to claim 1, wherein: The upper end of the limiting plate (3) is provided with a smooth guide surface.

7. The circuit board carrier according to any one of claims 1 to 6, characterized in that: Positioning plates (5) are respectively fixed to both ends of the base (2) along the second direction, and the positioning plates (5) are used to position the supporting plate (11).

8. The circuit board carrier according to any one of claims 1 to 6, characterized in that: The carrier plate (11) is provided with a plurality of hollow structures (111) and a plurality of guide holes (112) that penetrate vertically, and a guide groove (113) is provided on the bottom surface of the carrier plate (11).

9. The circuit board carrier according to any one of claims 1 to 6, characterized in that: One of the second end of the upper cover (12) and the carrier plate (11) is provided with a positioning hole (121), and the other is provided with a positioning column (114). When the upper cover (12) and the carrier plate (11) are closed, the positioning hole (121) and the positioning column (114) are plugged into each other.

10. The circuit board carrier according to any one of claims 1 to 6, characterized in that: At least one of the second end of the upper cover (12) and the supporting plate (11) is provided with a magnetic member (115); when the upper cover (12) and the supporting plate (11) are closed, the second end of the upper cover (12) and the supporting plate (11) are magnetically attracted.

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