Split type setter board special for USB (Universal Serial Bus) Housing

Abstract

The embodiment of the invention discloses a split type setter board special for USB (Universal Serial Bus) Housing. The split type setter board comprises a base and a bolt piece matched with the base, supporting columns are arranged at four corners of the base respectively, a first boss is arranged in the middle of the base, a groove is formed in the center of the first boss, the first boss can be matched with a cavity of the USB Housing, a C-shaped groove is formed in the base around the first boss, and a through groove is formed in the opposite side of the C-shaped groove; the plug pin piece is of a T-shaped double-layer boss structure, an upper-layer boss is matched with the groove of the first boss, and a lower-layer boss is matched with the mouth portion of the USB Housing fish. The split combined ceramic setter plate is designed by considering the influence of gravity on a suspended part in the sintering process and product deformation caused by friction force and internal stress. Through cooperation of the first boss of the setter plate base and the plug pin piece, deformation of the thin edge is greatly reduced, and meanwhile deformation of an inner cavity is guaranteed.

Description

Technical Field

[0001] This application relates to the field of powder metallurgy technology, and in particular to a split-type firing plate for USB housing. Background Technology

[0002] With the development of technology, the consumer electronics industry has entered a period of rapid transformation and innovation. In recent years, sales of smartphones, tablets, wearable devices, and other digital products have seen significant growth. The USB Type-C interface, integrating high-power supply capabilities, high-speed data transmission, compatibility with multiple protocols, and reversible insertion, has become the mainstream interface for consumer electronics products. USB housings, serving as the outer shell of the USB Type-C interface, are typically used to protect internal terminals, PCB boards, and cables, and provide mechanical support, electromagnetic shielding, and insertion / removal durability. Simultaneously, consumer electronics products are trending towards thinner and lighter designs, leading to increasingly smaller USB housings.

[0003] This type of USB housing is not only small in size and complex in structure, but also has high requirements for surface contour accuracy. Traditional CNC machining is costly and limits production capacity. Metal powder injection molding (MIM) technology has significant advantages in manufacturing USB housings, especially suitable for high-precision, complex structures, and high-volume production scenarios.

[0004] For metal powder injection molding (MPI) technology, the design of the ceramic support plate is crucial. Firstly, during the sintering process of MPI, the green body shrinks to a certain extent. When the thin edge of the product contacts the ceramic support plate, the friction generated during shrinkage can cause deformation of the thin edge. Simultaneously, if the green body is not properly positioned on the ceramic plate during shrinkage, the suspended portion will deform under gravity. Furthermore, the internal stress generated by injection molding in the green body can lead to product deformation during sintering.

[0005] Therefore, how to reduce the effects of these three types of deformation during sintering is an urgent problem to be solved when designing the sintering plate. Summary of the Invention

[0006] To address the existing technical problems, this application provides a dedicated split-type heating plate for USB housings. The technical solution is as follows: In one aspect, a split-type heat-supporting plate for USB Housing is provided, comprising: a base and a pin that cooperates with the base; The base is provided with support pillars at its four corners, and a first protrusion is provided in the middle of the base. A groove is provided in the center of the first protrusion. The first protrusion can cooperate with the cavity of the USB Housing. A C-shaped groove is provided around the first protrusion on the base, and a through groove is provided on the opposite side of the C-shaped groove. The pin has a T-shaped double-layer boss structure, with the upper boss engaging with the groove of the first boss and the lower boss engaging with the fish mouth part of the USB Housing.

[0007] Furthermore, the through groove on the base is 0.43mm wide and 0.2mm deep.

[0008] Furthermore, the C-groove is 1 mm deep.

[0009] Furthermore, the base is 25mm long, 8.4mm wide, and 10mm high.

[0010] Furthermore, the upper boss of the pin is 2.8mm high, 6.95mm long, and 0.95mm wide.

[0011] Furthermore, the lower boss of the pin has a height of 4.3mm, a length of 8.34mm, and a width of 2.54mm.

[0012] Furthermore, the base plate of the pin is 2mm high, 16mm long, and 5mm wide.

[0013] The beneficial effects of the technical solution provided in this application are as follows: The USB Housing dedicated split-type firing plate of this application includes: a base and a pin that cooperates with the base; the base is provided with support columns at its four corners, a first boss is provided in the middle of the base, a groove is provided in the center of the first boss, the first boss can cooperate with the cavity of the USB Housing, a C-shaped groove is provided around the first boss on the base, and a through groove is provided on the opposite side of the C-shaped groove; the pin is a T-shaped double-layer boss structure, the upper boss cooperates with the groove of the base, and the lower boss cooperates with the fish mouth part of the USB Housing. This application considers the influence of gravity on the suspended part during the sintering process, and the product deformation caused by friction and internal stress, and designs a split combined ceramic firing plate. Through the cooperation of the first boss of the firing plate base and the pin, the deformation of the thin edge (ceramic plate contact surface) is greatly reduced, while the deformation of the internal cavity is also guaranteed. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a front view of the base provided in an embodiment of this application; Figure 2 This is a top view of the base provided in the embodiment of this application; Figure 3 This is a side view of the base provided in an embodiment of this application; Figure 4 This is a front view of the pin provided in the embodiments of this application; Figure 5 This is a top view of the pin provided in the embodiment of this application; Figure 6 This is a schematic diagram of the use of the USBHousing dedicated split-type heat sink provided in the embodiments of this application. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0017] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0018] In the following description, when referring to the accompanying drawings, the same numbers in different drawings denote the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0019] In the description of this application, it should be understood that the terms "first," "second," "third," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. In the description of this application, unless otherwise stated, "multiple" means two or more.

[0020] like Figure 1-5 The USB Housing dedicated split-type heat sink plate shown in this application includes: a base 10 and a pin 20 that cooperates with the base.

[0021] The base 10 has four support pillars 11 at its four corners and a first protrusion 12 in the center. The support pillars 11 at the four corners of the base 10 restrict the USB Housing blank from the outside, keeping it in the center of the base 10. The first protrusion 12 is slightly smaller than the cavity of the USB Housing blank, allowing the USB Housing blank to be fitted onto the first protrusion 12, further limiting and supporting the USB Housing blank, thereby reducing the deformation of the cavity of the USB Housing blank caused by gravity during sintering.

[0022] A C-shaped groove 13, 1 mm deep, is formed around the first protrusion 12 on the base 10. A through groove 14, 0.43 mm wide and 0.2 mm deep, is formed at the opening on the opposite side of the C-shaped groove 13, extending laterally through the base 10. The C-shaped groove 13 is slightly larger than the bottom width of the USB Housing blank, allowing the bottom of the USB Housing blank to be engaged in the C-shaped groove 13, thus limiting its position and preventing it from deviating during sintering, thereby improving the internal flatness of the USB Housing blank. The through groove 14 allows the thin edge of the USB Housing blank to be suspended, reducing deformation during sintering.

[0023] A groove 15 is provided in the center of the first boss 12. The pin 20 has a T-shaped double-layer boss structure. The upper boss 21 can be inserted into the groove 15 of the first boss 12 to achieve positioning and matching between the base 10 and the pin 20. The lower boss 22 is slightly smaller than the fish mouth part of the USB Housing blank and can cooperate with the fish mouth part of the USB Housing blank to ensure that the fish mouth part of the USB Housing blank will not be concave during the shrinkage process of the sintering process.

[0024] To accommodate the dimensions of the USB Housing prototype, the base 10 is designed to be 25mm long, 8.4mm wide, and 10mm high. The upper boss 21 of the pin 20 is 2.8mm high, 6.95mm long, and 0.95mm wide. The lower boss 22 of the pin 20 is 4.3mm high, 8.34mm long, and 2.54mm wide. The base plate of the pin 20 is 2mm high, 16mm long, and 5mm wide.

[0025] Figure 6 This is a schematic diagram illustrating the use of the dedicated split-type sintering plate for USB Housing in this application. Before sintering, the USB Housing is first placed on the base (e.g., Figure 6 (a and 6b), then insert the pin from above the USB Housing (as shown in a and 6b). Figure 6 c), then the sintering plate can be placed into the sintering furnace for sintering.

[0026] This application discloses a split-type ceramic firing plate specifically for USB housing, comprising: a base and a pin that mates with the base; each of the four corners of the base has a support pillar, and a first boss is located in the center of the base, with a groove in the center of the first boss. The first boss mates with the cavity of the USB housing. A C-shaped groove is provided around the first boss on the base, and a through groove is provided on the opposite side of the C-shaped groove. The pin has a T-shaped double-layer boss structure, with the upper boss mates with the groove of the base and the lower boss mates with the fish-mouth part of the USB housing. This application considers the influence of gravity on the suspended part during sintering, as well as the product deformation caused by friction and internal stress, and designs a split-type combined ceramic firing plate. The engagement of the first boss on the firing plate base with the pin significantly reduces deformation of the thin edge (ceramic plate contact surface) while ensuring the deformation of the internal cavity. Furthermore, considering the insertion and removal of structural components, the entire combined ceramic plate design incorporates allowances to prevent structural components from being stuck after sintering and difficult to remove. The above are merely preferred embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A split-type heating plate specifically for USB housing, characterized in that, include: A base and a pin that mates with the base; The base is provided with support pillars at its four corners, and a first protrusion is provided in the middle of the base. A groove is provided in the center of the first protrusion. The first protrusion can cooperate with the cavity of the USB Housing. A C-shaped groove is provided around the first protrusion on the base, and a through groove is provided on the opposite side of the C-shaped groove. The pin has a T-shaped double-layer boss structure, with the upper boss engaging with the groove of the first boss and the lower boss engaging with the fish mouth part of the USB Housing.

2. The firing plate according to claim 1, characterized in that, The through groove on the base is 0.43mm wide and 0.2mm deep.

3. The firing plate according to claim 1, characterized in that, The C-groove is 1 mm deep.

4. The firing plate according to claim 1, characterized in that, The base is 25mm long, 8.4mm wide, and 10mm high.

5. The firing plate according to claim 1, characterized in that, The upper boss of the pin is 2.8mm high, 6.95mm long, and 0.95mm wide.

6. The firing plate according to claim 1, characterized in that, The lower boss of the pin is 4.3mm high, 8.34mm long, and 2.54mm wide.

7. The firing plate according to claim 1, characterized in that, The base plate of the pin is 2mm high, 16mm long, and 5mm wide.

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