Power type surface-mounted shell

Abstract

The utility model relates to a power-type surface-mounted shell, and relates to the field of electronic product manufacturing, the power-type surface-mounted shell comprises a bottom plate, the bottom plate is recessed to form a mounting groove, and the bottom of the mounting groove is hollow to form a mounting channel for embedding a mounting electrode. The bottom plate is made of the aluminum nitride ceramic material, the heat dissipation capacity is improved, the higher heat dissipation requirement is met, meanwhile, the traditional brazing technology is reduced, the production process is simplified, and the product quality is improved.

Description

Technical Field

[0001] This application relates to the technical field of electronic product manufacturing, and particularly to a power type mounting housing. Background Art

[0002] With the progress of technology, electronic products are more and more widely used in people's daily life, and higher requirements are put forward for the quality and production efficiency of electronic products. The SMT surface mounting technology is widely used because of its high precision and high efficiency. However, most of the current power type mounting housings are made of materials such as alumina and tungsten copper. Their production processes are complex and their thermal conductivity is not good, which cannot meet the requirements of modern electronic products for efficient heat dissipation.

[0003] Traditional power type mounting housings need to carry out complex brazing processes during production. This not only increases the production cost, but also easily causes problems such as weld seams and solder flow during brazing, affecting the airtightness and quality of the products. In addition, the heat dissipation capacity of traditional tungsten copper materials is limited and cannot meet the heat dissipation requirements of modern high-power electronic products.

[0004] Therefore, based on the above problems, the existing technology needs to be improved. Utility Model Content

[0005] The purpose of this application is to improve the heat dissipation capacity, meet higher heat dissipation requirements, while reducing traditional brazing processes, simplifying the production process and improving the product quality.

[0006] The above technical purpose of this application is achieved through the following technical solutions: A power type mounting housing includes a bottom plate. A mounting groove is formed by the bottom plate being concave. A mounting channel is formed by the bottom of the mounting groove being hollow, and is used for fitting and mounting electrodes.

[0007] By adopting the above technical solutions, the mounting groove and the mounting channel are integrally formed by the bottom plate, which can effectively utilize the internal space of the bottom plate, make the layout of electronic components more compact, and contribute to the miniaturization and lightness of electronic products. The mounting channel is designed specifically for fitting and mounting electrodes, which can ensure the firmness and stability of electrode installation, and reduce circuit failures caused by electrode loosening. The hollow structure helps to dissipate heat, avoid local heat accumulation, thereby improving the heat dissipation performance of the entire mounting housing and extending the service life of electronic components. It improves the heat dissipation capacity, meets higher heat dissipation requirements, while reducing traditional brazing processes, simplifying the production process and improving the product quality.

[0008] Optionally, the bottom plate is made of aluminum nitride ceramic material.

[0009] By adopting the above technical solutions, aluminum nitride ceramics have excellent thermal conductivity, can quickly and effectively conduct the heat generated during the operation of electronic components, ensure the stable operation of the device in a high-temperature environment, and extend the service life of electronic components. It can provide reliable electrical insulation protection, reduce the risks of circuit short-circuit and leakage, and improve the safety and stability of the circuit. It enables the bottom plate to withstand greater mechanical pressure and impact, is not easily deformed or damaged, and ensures the structural integrity of the mounting housing. When the temperature changes, the size of the bottom plate changes less, reducing the structural stress and deformation caused by thermal expansion and contraction, and contributing to maintaining the long-term stability of the mounting housing. It can resist the erosion of most chemical substances, is not easily oxidized or corroded, and ensures stable performance during long-term use. Compared with traditional materials, aluminum nitride ceramics have a lower density, which helps to reduce the weight of the entire mounting housing and adapt to the development trend of lightweight electronic products. In a high-frequency environment, it can still maintain good electrical performance and is suitable for high-frequency electronic devices. It can work normally in harsh environments such as high temperature and high humidity, broadening the application range of electronic products.

[0010] Optionally, a sink is recessed in the bottom of the installation groove.

[0011] By adopting the above technical solutions, the design of the sink can provide additional space, facilitating the accommodation of electronic components with larger volumes or special shapes, and improving the compatibility of the housing with different components. It helps to arrange the positions of electronic components more reasonably, making the connections and wirings between components more orderly, and reducing line crossings and interferences. It can provide better positioning and fixation for components, prevent the displacement of components during use, and ensure the stability of the circuit. The sink can increase the contact area between the components and the bottom plate, facilitating the transfer of heat from the components to the bottom plate, and thus improving the overall heat dissipation effect. When the heights of the components are inconsistent, the sink can reduce the height difference between the components, making the installation more flat and reducing the impact on subsequent encapsulation and assembly. For some components that are more sensitive to pressure or collision, the sink can provide a certain buffering and protection effect. When potting or sealing treatment is required, the structure of the sink is conducive to the retention and distribution of the filling material, enhancing the sealing effect. On the premise of not affecting the structural strength, an appropriate concave design can reduce the weight of the bottom plate, meeting the requirements of product lightweight.

[0012] Optionally, the corners of the sink are rounded.

[0013] By adopting the above technical solutions, the design of the arc angle can effectively disperse stress, avoid stress concentration at the corners, thereby enhancing the structural strength and durability of the bottom plate and the sunken groove. It reduces the possibility of the corners cracking or being damaged due to stress, improving the reliability and service life of the entire mounting housing. During the production process, the arc angle is easier to process and form than a right angle, reducing the manufacturing difficulty and cost and improving production efficiency. It can prevent the sharp corners from scratching or damaging the electronic components installed in the sunken groove, ensuring the integrity and performance of the components. In some applications, if there is fluid passing through or heat transfer exists, the arc angle is beneficial to the smooth flow of the fluid and improves the heat exchange effect. It makes the appearance of the sunken groove more rounded and beautiful, enhancing the overall visual effect of the product. The arc angle can better absorb and disperse impact energy, improving the stability of the mounting housing when subjected to external impacts. It reduces the accumulation of dirt and impurities at the corners, making the cleaning work easier and more thorough.

[0014] Optionally, an extension block is provided on the side surface of the bottom plate away from the mounting groove, and a clearance groove is formed between the extension block and the bottom plate.

[0015] By adopting the above technical solutions, even when the bottom plate is equipped with electrodes, the extension block can still ensure stable contact with the plane of the mounted object, greatly improving the overall stability of the housing after installation and reducing displacement or loosening caused by insecure installation. It enables the housing to remain stable under various different installation surfaces and conditions, enhancing the adaptability of the product to diverse installation environments. The stable installation helps to maintain a good electrical connection between the electrodes and the external circuit, reducing the risk of signal transmission problems and circuit failures caused by poor contact. During the operation of the device, the vibrations generated can be effectively buffered and suppressed through stable installation, thereby protecting the internal electronic components from vibration damage. The cooperation between the extension block and the bottom plate makes the housing form a more solid overall structure, enhancing the ability to resist external impact and distortion. The stable installation method helps heat to be transferred and dissipated more evenly, avoiding local overheating and further improving the heat dissipation performance of the product.

[0016] Optionally, the electrode is made of 4J29 alloy material.

[0017] By adopting the above technical solutions, the 4J29 alloy has a linear expansion coefficient adapted to other components (such as aluminum nitride ceramic substrates). When the temperature changes, it can reduce the internal stress caused by the difference in thermal expansion and contraction, improving the stability and reliability of the connection between the electrode and other components. It helps to form a good seal at the joint with other components, reducing the influence of external environmental factors (such as moisture, dust, etc.) on the internal electronic components and enhancing the protection performance of the housing. It can ensure the stable transmission of current, reduce the energy loss caused by resistance, and improve the efficiency and performance of the circuit. The 4J29 alloy is easy to be processed into electrodes of various shapes and sizes, meeting different design requirements, while reducing the processing cost and difficulty. It has certain corrosion resistance and can maintain the stable performance of the electrode during long-term use, extending the service life. It can still maintain the stability of its physical and chemical properties in a relatively high-temperature environment and is suitable for some electronic devices with higher working temperatures. It can withstand a certain amount of mechanical stress and impact, is not easily deformed or damaged, and ensures the structural integrity of the electrode during use. While providing good performance, compared with some high-performance but expensive materials, the 4J29 alloy has better cost-effectiveness and helps to control the product cost.

[0018] Optionally, the corner positions of the installation groove are rounded corners.

[0019] By adopting the above technical solutions, the rounded corners can effectively disperse stress, reducing the risk of cracking or damage at the corners of the installation groove due to stress concentration, and enhancing the stability and durability of the structure. The rounded corners make it easier for electronic components to slide into the installation groove during installation, reducing the installation resistance and improving the installation efficiency. They avoid sharp corners from scratching or damaging the electronic components installed in the groove, ensuring the integrity and performance of the components. The rounded corners can increase the contact area between the installation groove and the outside, facilitating heat dissipation and improving the overall heat dissipation performance. During the manufacturing process, rounded corners are easier to process and form than right angles, reducing the production difficulty and cost, and improving the production efficiency and product quality. They make the appearance of the installation groove smoother and more beautiful, enhancing the overall visual effect of the product. They reduce the accumulation of dirt and impurities at the corners, making the cleaning work easier and more thorough, and helping to maintain the cleanliness of the installation groove.

[0020] Optionally, the corner positions of the cross-section of the installation channel are provided with rounded corners.

[0021] By adopting the above technical solution, the corners of the installation channel cross-section are rounded corners, which can disperse stress, avoid excessive stress concentration at sharp corners, enhance the stability of the channel structure, and reduce the risk of rupture. The rounded corners make the electrode insertion into the installation channel smoother, reduce jamming and friction, improve the installation efficiency, and at the same time reduce the possibility of damage to the electrode and the channel caused by installation. The rectangular cross-section can make full use of space and provide a larger installation area within a given region, while the setting of the rounded corners makes up for the insufficient utilization of the space at the rectangular corners to a certain extent. The rounded corners increase the contact area between the channel and the outside world, which is conducive to heat transfer from the channel, thereby enhancing the overall heat dissipation effect. During the manufacturing process, rounded corners are easier to achieve high-precision machining than right angles, which helps to ensure the dimensional accuracy and shape accuracy of the installation channel. It makes the appearance of the installation channel more rounded and beautiful, enhancing the overall visual effect of the product. The rounded corners can better absorb and disperse external impact energy, improving the stability and durability of the installation channel when subjected to external force impacts.

[0022] In summary, the present application has at least the following beneficial effects:

[0023] 1. The design of the sunk groove can provide additional space to facilitate the accommodation of larger or specially shaped electronic components, improving the compatibility of the housing with different components. It helps to arrange the positions of electronic components more reasonably, making the connections and wirings between components more orderly, reducing line crossings and interferences. It can provide better positioning and fixation for components, preventing the components from shifting during use and ensuring the stability of the circuit. The sunk groove can increase the contact area between the components and the bottom plate, which is conducive to heat transfer from the components to the bottom plate, thereby improving the overall heat dissipation effect. When the component heights are inconsistent, the sunk groove can reduce the height difference between the components, making the installation more flat and reducing the impact on subsequent encapsulation and assembly. For some components that are sensitive to pressure or collision, the sunk groove can provide a certain buffering and protection effect. When potting or sealing treatment is required, the structure of the sunk groove is conducive to the retention and distribution of filling materials, enhancing the sealing effect. On the premise of not affecting the structural strength, an appropriate concave design can reduce the weight of the bottom plate, meeting the requirement of product lightweight.

[0024] The 4J29 alloy has a linear expansion coefficient that matches other components (such as aluminum nitride ceramic base plates). When the temperature changes, it can reduce the internal stress caused by the difference in thermal expansion and contraction, improving the stability and reliability of the connection between the electrode and other components. It helps to form a good seal at the junction with other components, reducing the impact of external environmental factors (such as moisture, dust, etc.) on internal electronic components and enhancing the protective performance of the housing. It can ensure the stable transmission of current, reduce the energy loss caused by resistance, and improve the efficiency and performance of the circuit. The 4J29 alloy is easy to be processed into electrodes of various shapes and sizes to meet different design requirements, while reducing the processing cost and difficulty. It has certain corrosion resistance and can maintain the stable performance of the electrode during long-term use, extending the service life. It can still maintain the stability of its physical and chemical properties in a relatively high-temperature environment and is suitable for some electronic devices with higher operating temperatures. It can withstand a certain amount of mechanical stress and impact, is not easy to deform or damage, and ensures the structural integrity of the electrode during use. While providing good performance, compared with some high-performance but expensive materials, the 4J29 alloy has better cost-effectiveness and helps to control the product cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of a power-type surface-mount housing;

[0026] Figure 2 is a schematic structural diagram of the base plate;

[0027] Figure 3 is a schematic structural diagram of the electrode;

[0028] Figure 4 is a schematic structural diagram of the clearance groove.

[0029] REFERENCE SIGNS

[0030] 1. Base plate; 2. Mounting groove; 3. Mounting channel; 4. Electrode; 5. Sunk groove; 6. Extension block; 7. Clearance groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The following further describes the present application in detail with reference to the drawings.

[0032] In this embodiment, referring to Figures 1-3 , a power-type surface-mount housing includes a base plate 1 made of aluminum nitride ceramic material and having excellent thermal conductivity. An installation groove 2 is formed in the base plate 1 in a concave shape for placing electronic components. The bottom of the installation groove 2 is hollowed out to form an installation channel 3 for fitting and installing an electrode 4. The electrode 4 is made of 4J29 alloy material. The 4J29 alloy, also known as Kovar alloy, is a Fe-Ni-Co alloy and has good electrical conductivity and corrosion resistance.

[0033] The implementation principle of Embodiment 1 is as follows: The bottom plate 1 made of aluminum nitride ceramic material improves the heat dissipation performance of the housing, meeting the requirements of modern electronic products for efficient heat dissipation. At the same time, through the design of the installation groove 2 and the installation channel 3, it is convenient to install electronic components and electrodes 4, improving the production efficiency.

[0034] Embodiment 2

[0035] Referring to Figure 1 , the difference in this embodiment is that a sunken groove 5 is formed by concave setting at the bottom of the installation groove 2, and the four corner positions of the sunken groove 5 are arc corners. This design can further increase the contact area between the electrode 4 and the bottom plate 1, improve the heat dissipation efficiency, and at the same time avoid stress concentration, improving the structural strength and service life of the product.

[0036] Embodiment 3

[0037] Referring to Figure 4 , the difference in this embodiment is that an extension block 6 is provided on the side surface of the bottom plate 1 away from the installation groove 2, and a clearance groove 7 is formed between the extension block 6 and the bottom plate 1. The extension block 6 can serve as a reinforcing rib of the housing, improving the structural strength of the housing. Even when the electrode 4 is installed on the bottom plate 1, the extension block 6 can still ensure stable contact with the installation object plane, greatly improving the overall stability of the housing after installation and reducing displacement or loosening caused by insecure installation.

[0038] Embodiment 4

[0039] Referring to Figures 2-3 , this embodiment discloses an improved power type surface mount housing, in which the four corner positions of the installation groove 2 are also arc corners. This design can further improve the structural strength and service life of the product. At the same time, the cross-section of the installation channel 3 is rectangular, and the four corner positions of the cross-section of the installation channel 3 are provided with arc corners, which not only facilitates the installation of the electrode 4 but also avoids the problem of stress concentration.

[0040] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A power type mounting housing, characterized in that: It comprises a bottom plate (1), the bottom plate (1) is concavely formed with a mounting groove (2), the bottom of the mounting groove (2) is hollowly arranged to form a mounting channel (3) for engaging and mounting an electrode (4).

2. A power type mounting housing according to claim 1, characterized in that: The bottom plate (1) is made of aluminum nitride ceramic material.

3. A power type mounting housing according to claim 1, characterized in that: The bottom of the installation groove (2) is concavely arranged to form a sink groove (5).

4. A power type mounting housing according to claim 3, characterized in that: The corner positions of the sink groove (5) are arc angles.

5. A power type mounting housing according to claim 1, characterized in that: An extension block (6) is provided on a side surface of the bottom plate (1) away from the mounting groove (2), and a clearance groove (7) is formed between the extension block (6) and the bottom plate (1).

6. A power type mounting housing according to claim 1, characterized in that: The electrode (4) is made of 4J29 alloy material.

7. A power type mounting housing according to claim 1, characterized in that: The corner positions of the installation groove (2) are arc corners.

8. The power type mounting housing according to claim 1, characterized in that: The corner positions of the cross section of the installation channel (3) are set as arc angles.

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