SMD transformer framework structure

Abstract

The utility model relates to an SMD transformer framework structure, and belongs to the field of SMD transformers, the SMD transformer framework structure comprises a winding framework, a heat dissipation mechanism is arranged on the outer side of the winding framework, and fixing mechanisms are arranged on the inner walls of the left side and the right side of the heat dissipation mechanism. According to the SMD transformer framework structure, the transformer is effectively protected by the heat dissipation mechanism through the protective shell, meanwhile, heat generated in the operation process of the transformer winding is efficiently absorbed and dispersed, and the heat conduction performance of the transformer winding is improved due to the close attachment of the heat conduction diaphragm and the winding and the heat conduction characteristic of the heat conduction silicone grease. Heat can be rapidly transferred to the vapor chamber from the winding, the heat transfer path is further optimized through the uniform heat distribution function of the vapor chamber, and heat convection and radiation heat dissipation are effectively promoted through contact between the heat dissipation fins and ambient air through the increased surface area of the heat dissipation fins, so that the heat dissipation efficiency is improved. The risk of performance reduction or damage possibly caused by overheating of the transformer is reduced, the working efficiency of the transformer is improved, and the service life of the transformer is prolonged.

Description

Technical Field

[0001] This application relates to the technical field of SMD transformers, and specifically to an SMD transformer skeleton structure. Background Art

[0002] With the rapid development of network and communication technologies, network modules and communication modules used to control networks and communications have also been continuously evolving. The network modules and communication modules are usually provided with transformers, which are mainly used to provide anti-matching and isolation abnormalities. The transformers used in the application and control of networks and communications are called SMD transformers. The component that winds metal wires in an SMD transformer is called an SMD transformer skeleton or a winding skeleton. PIN feet are provided at the ends of the SMD transformer skeleton and are fixed to the transformer through the PIN feet. After the metal wires are wound around the outside of the SMD transformer skeleton, it will be transferred by the grasping mechanism on the automatic machine for producing SMD transformers, and the quality will be detected manually.

[0003] For example, an SMD transformer skeleton structure disclosed in Chinese Patent Publication No. (CN218866882U) includes a winding skeleton. A plurality of linearly arranged PIN feet are provided at positions near the lower parts of both ends of the winding skeleton. Two symmetrically distributed anti-detachment protruding blocks are provided at positions near the upper parts of both ends of the winding skeleton. A protective cover is provided above the winding skeleton. Two symmetrically distributed connection card slots are provided on both end faces of the protective cover. After the winding operation of the winding skeleton is completed, the protective cover is covered on the top of the winding skeleton, and the protective cover is supported and restricted by an elastic support metal sheet and a guiding metal strip, so that the protective cover will not detach from the winding skeleton without human intervention. Subsequently, the suction cup on the automatic machine in the production process of the transformer sucks the protective cover, ensuring that when the automatic machine grabs the skeleton after winding, it will not damage the metal wires wound outside the skeleton and the PIN feet installed at the ends of the skeleton.

[0004] However, in the prior art such as the above-mentioned disclosed patent, there is still a problem that the protection and heat dissipation effect of the transformer skeleton is poor. In the prior art, a protective shell is provided outside the transformer skeleton to protect the winding part of the transformer and prevent the winding from being damaged during the clamping and detection process. However, this structure wraps most of the winding inside to form a semi-closed space. At the same time, the transformer will emit a certain amount of heat during operation. The existing skeleton protective shell will block the airflow from taking out the dissipated heat, resulting in the accumulation of heat inside the protective shell, thereby increasing the operating power consumption of the transformer winding and affecting its voltage transformation efficiency and service life. Summary of the Utility Model

[0005] In view of the deficiencies of the prior art, the present application provides an SMD transformer skeleton structure, which has advantages such as facilitating heat dissipation, and solves the problem of poor protection and heat dissipation effect for the transformer skeleton.

[0006] To achieve the above object, the present application provides the following technical solution: An SMD transformer skeleton structure includes a winding skeleton, and a heat dissipation mechanism is arranged on the outer side of the winding skeleton, and fixing mechanisms are arranged on the inner walls of the left and right sides of the heat dissipation mechanism;

[0007] The heat dissipation mechanism includes a protective shell, a heat conduction diaphragm, heat conduction silicone grease, a heat pipe, and heat dissipation fins. The protective shell is sleeved on the outer side of the winding skeleton. The heat conduction diaphragm is fixed to the inner top wall of the protective shell. The heat conduction silicone grease is filled between the opposite sides of the heat conduction diaphragm and the protective shell. A connection port is opened on the upper surface of the protective shell, and the heat pipe is fixed to the inner wall of the connection port. The heat dissipation fins are fixed to the upper surface of the heat pipe.

[0008] By adopting this technical solution, by arranging a heat dissipation mechanism on the outer side of the winding skeleton, the heat dissipation ability of the transformer is enhanced, which helps to maintain the winding working at a suitable temperature, thereby improving the stability and efficiency of the transformer. The setting of the fixing mechanism ensures the stable connection between the heat dissipation mechanism and the winding skeleton, and improves the reliability of the overall structure.

[0009] Furthermore, a transformer winding is wound on the outer side of the winding skeleton, and the shape of the protective shell is a cuboid with a hollow interior and a missing bottom.

[0010] By adopting this technical solution, the design of winding the transformer winding on the outer side of the winding skeleton makes the structure of the transformer more compact and facilitates integration into smaller electronic devices. The shape design of the protective shell as a cuboid with a hollow interior and a missing bottom helps to improve the heat dissipation efficiency, and at the same time facilitates the installation and maintenance of the winding.

[0011] Furthermore, the lower surface of the heat pipe is attached to the heat conduction silicone grease.

[0012] By adopting this technical solution, the lower surface of the heat pipe being attached to the heat conduction silicone grease can more effectively conduct heat from the winding to the heat pipe, further improving the heat dissipation efficiency.

[0013] Furthermore, the heat dissipation fins include a plurality of copper sheets vertically fixed on the upper surface of the heat pipe, and the plurality of copper sheets are evenly distributed along the length direction of the heat pipe.

[0014] By adopting this technical solution, the heat dissipation fins are composed of a plurality of copper sheets. The high thermal conductivity of the copper sheets helps to quickly dissipate heat. The copper sheets are evenly distributed along the length direction of the heat pipe, ensuring uniform heat dissipation and improving the overall heat dissipation performance.

[0015] Furthermore, the thickness of the heat pipe is equal to the depth of the inner cavity of the connection port, and the length of the heat dissipation fins is equal to the length of the heat pipe.

[0016] By adopting this technical solution, the thickness of the heat pipe is equal to the depth of the inner cavity of the connection port, ensuring a tight fit between the heat pipe and the connection port, which is beneficial to the effective conduction of heat. The length of the heat dissipation fins is equal to the length of the heat pipe, ensuring the maximization of the heat dissipation area, thereby improving the heat dissipation efficiency.

[0017] Furthermore, the fixing mechanism includes two connecting shafts, two rotating plates, two insertion blocks, and two support springs. Connecting grooves are respectively formed on the left and right inner walls of the protective housing, and the two connecting shafts are respectively fixed between the front and rear inner walls of the two connecting grooves. The two rotating plates are respectively rotatably connected to the outer sides of the two connecting shafts. The two insertion blocks are respectively fixed to the opposite sides of the two rotating plates, and the two support springs are respectively fixed to the opposite inner walls of the two connecting grooves, and the opposite ends of the two support springs are respectively fixed to the opposite sides of the two rotating plates. [[ID=X]]

[0018] By adopting this technical solution, the design of the fixing mechanism enables the protective housing to be stably fixed on the winding skeleton, improving the stability and reliability of the overall structure. The combination of the connecting shaft, rotating plate, insertion block, and support spring provides a flexible and stable fixing method, facilitating installation and maintenance.

[0019] Furthermore, guiding inclined surfaces are respectively formed on the lower surfaces of the two insertion blocks, and the widths of the rotating plates are respectively equal to the distances between the front and rear inner walls of the two connecting grooves.

[0020] By adopting this technical solution, the guiding inclined surface design of the insertion block makes it easier for the protective housing to be sleeved on the winding skeleton, simplifying the installation process. The width of the rotating plate matches the size of the connecting groove, ensuring the stability and consistency of the fixing mechanism.

[0021] Furthermore, card slots for inserting the insertion blocks are respectively formed on the left and right sides of the winding skeleton.

[0022] By adopting this technical solution, the card slot design on both sides of the winding skeleton provides accurate insertion positions for the insertion blocks, ensuring the accuracy and stability of the fixing mechanism. This design also helps to improve production efficiency because automated equipment can more easily identify and operate these card slots, thus accelerating the assembly process.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] 1. For this SMD transformer skeleton structure, while the heat dissipation mechanism effectively protects the transformer through the protective housing, the heat generated by the transformer winding during operation can be efficiently absorbed and dispersed. The tight fit of the heat conduction diaphragm to the winding and the heat conduction characteristics of the thermal grease ensure that heat can quickly transfer from the winding to the heat sink plate. The uniform heat distribution function of the heat sink plate further optimizes the heat transfer path, and the heat dissipation fins effectively promote heat convection and radiation dissipation through their increased surface area in contact with the ambient air. This not only reduces the risk of performance degradation or damage that the transformer may suffer due to overheating, but also helps to improve the working efficiency of the transformer and extend its service life.

[0025] 2. For this SMD transformer skeleton structure, through the interaction of the connecting shaft, rotating plate, insertion block, and support spring in the fixing mechanism, precise fixation between the protective housing and the winding skeleton is achieved. This fixing method not only simplifies the installation process but also improves the accuracy and reliability of installation. The design of the guiding inclined surface of the insertion block enables the protective housing to be smoothly sleeved on the winding skeleton, and the elastic effect of the support spring ensures that the insertion block can be stably inserted into the card slot to form a firm fixation. The stability of the fixing mechanism reduces the risk of displacement or damage to the transformer skeleton caused by vibration or impact, thereby improving the overall stability and reliability of the transformer. Brief Description of the Drawings

[0026] Figure 1 It is a schematic diagram of the structure of this application;

[0027] Figure 2 It is a schematic diagram of the heat dissipation mechanism of this application;

[0028] Figure 3 It is a partial schematic diagram of the heat dissipation mechanism of this application;

[0029] Figure 4 It is a schematic diagram of the fixing mechanism of this application.

[0030] In the figure: 1. Winding skeleton; 2. Heat dissipation mechanism; 21. Protective housing; 22. Heat conduction diaphragm; 23. Thermal grease; 24. Heat sink plate; 25. Heat dissipation fins; 3. Fixing mechanism; 31. Connecting shaft; 32. Rotating plate; 33. Insertion block; 34. Support spring; 35. Connecting groove; 36. Card slot. Detailed Description of the Embodiment

[0031] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0032] Please refer to Figure 1 , a SMD transformer skeleton structure in this embodiment includes a winding skeleton 1, a heat dissipation mechanism 2 is arranged on the outer side of the winding skeleton 1, and fixing mechanisms 3 are arranged on the inner walls of the left and right sides of the heat dissipation mechanism 2.

[0033] Please refer to Figures 2 to 3 , in order to improve the protection and heat dissipation effect of the transformer, the heat dissipation mechanism 2 in this embodiment includes a protective shell 21, a heat conduction diaphragm 22, a heat conduction silicone grease 23, a heat sink plate 24 and heat dissipation fins 25. The protective shell 21 is sleeved on the outer side of the winding skeleton 1. Carefully sleeving the protective shell 21 on the outer side of the winding skeleton 1 provides solid physical protection for the transformer winding. The heat conduction diaphragm 22 is fixed to the inner top wall of the protective shell 21. The heat conduction silicone grease 23 is filled between the side of the heat conduction diaphragm 22 opposite to the protective shell 21. The heat conduction diaphragm 22 is in close contact with the winding skeleton 1 and the winding. With the assistance of the heat conduction silicone grease 23, the contact surface of the diaphragm will be moderately deformed to ensure seamless fitting with the winding. A connection port is opened on the upper surface of the protective shell 21, and the heat sink plate 24 is fixed to the inner wall of the connection port. When the transformer winding operates and generates heat, this heat is first absorbed by the heat conduction diaphragm 22 and the heat conduction silicone grease 23 and quickly conducted to the heat sink plate 24. The heat dissipation fins 25 are fixed to the upper surface of the heat sink plate 24.

[0034] In this embodiment, a transformer winding is wound on the outer side of the winding skeleton 1. The shape of the protective shell 21 is a cuboid with a hollow interior and a missing bottom. The lower surface of the heat sink plate 24 is attached to the heat conduction silicone grease 23. The heat dissipation fins 25 include a plurality of copper sheets vertically fixed on the upper surface of the heat sink plate 24, and the plurality of copper sheets are evenly distributed along the length direction of the heat sink plate 24. The thickness of the heat sink plate 24 is equal to the depth of the inner cavity of the connection port. The function of the heat sink plate 24 is to evenly disperse the concentrated heat to optimize the heat transfer efficiency. The length of the heat dissipation fins 25 is equal to the length of the heat sink plate 24. The heat dissipation fins 25, as an external component of the heat dissipation mechanism 2, are in contact with the ambient air and effectively discharge the heat through natural convection or forced ventilation to ensure the stable operation of the transformer at an appropriate temperature.

[0035] It should be noted that while the heat dissipation mechanism 2 effectively protects the transformer through the protective housing 21, the heat generated by the transformer winding during operation can be efficiently absorbed and dissipated. The tight fit of the heat-conducting diaphragm 22 with the winding and the heat conduction characteristics of the heat-conducting silicone grease 23 ensure that heat can quickly transfer from the winding to the heat pipe 24. The uniform heat distribution function of the heat pipe 24 further optimizes the heat transfer path, while the heat dissipation fins 25 effectively promote heat convection and radiation dissipation through their increased surface area in contact with the ambient air. This not only reduces the risk of performance degradation or damage that may occur to the transformer due to overheating but also helps improve the working efficiency of the transformer and extend its service life.

[0036] Please refer to Figure 4 , for the convenience of fixed installation and protection with the skeleton, the fixing mechanism 3 in this embodiment includes two connecting shafts 31, two rotating plates 32, two inserting blocks 33, and two supporting springs 34. Connecting grooves 35 are formed on the inner walls of the left and right sides of the protective housing 21, and the two connecting shafts 31 are respectively fixed between the front and rear inner walls of the two connecting grooves 35. The two rotating plates 32 are respectively rotatably connected to the outer sides of the two connecting shafts 31. The two inserting blocks 33 are respectively fixed to the opposite sides of the two rotating plates 32. The two supporting springs 34 are respectively fixed to the inner walls of the opposite sides of the two connecting grooves 35, and the opposite ends of the two supporting springs 34 are respectively fixed to the opposite sides of the two rotating plates 32. During the installation process, the protective housing 21 is accurately positioned and sleeved outside the winding skeleton 1, laying the foundation for the installation of the fixing mechanism 3. With the sleeving of the protective housing 21, the upper part of the winding skeleton 1 contacts the guiding inclined surface of the inserting block 33, pushing the inserting block 33 to penetrate and compress the supporting spring 34, preparing for the installation of the fixing mechanism 3.

[0037] In this embodiment, guiding inclined surfaces are provided on the lower surfaces of the two inserting blocks 33. The widths of the rotating plates 32 are respectively equal to the distances between the front and rear inner walls of the two connecting grooves 35. Insertion slots 36 for the inserting blocks 33 to insert are provided on the left and right sides of the winding skeleton 1. When the inserting blocks 33 are aligned with the insertion slots 36 on the winding skeleton 1, the resilience of the supporting spring 34 acts on the rotating plates 32, prompting the inserting blocks 33 to be pushed out of the connecting grooves 35 and accurately inserted into the insertion slots 36. This series of actions ensures the stable connection between the protective housing 21 and the winding skeleton 1, providing reliable structural support for the transformer.

[0038] It should be noted that through the interaction of the connecting shaft 31, the rotating plate 32, the insertion block 33 and the support spring 34 in the fixing mechanism 3, the precise fixing between the protective housing 21 and the winding skeleton 1 is achieved. This fixing method not only simplifies the installation process, but also improves the accuracy and reliability of installation. The design of the guiding inclined surface of the insertion block 33 enables the protective housing 21 to be smoothly sleeved on the winding skeleton 1, and the elastic action of the support spring 34 ensures that the insertion block 33 can be stably inserted into the card slot 36 to form a firm fixation. The stability of the fixing mechanism 3 reduces the risk of displacement or damage of the transformer skeleton caused by vibration or impact, thereby improving the overall stability and reliability of the transformer.

[0039] The working principle of the above embodiment is as follows:

[0040] (1) First of all, the protective housing 21 is carefully sleeved on the outside of the winding skeleton 1 to provide solid physical protection for the transformer winding. Immediately afterwards, the heat-conducting diaphragm 22 is in close contact with the winding skeleton 1 and the winding. With the assistance of the heat-conducting silicone grease 23, the contact surface of the diaphragm will be moderately deformed to ensure seamless fitting with the winding. When the transformer winding operates and generates heat, this heat is first absorbed by the heat-conducting diaphragm 22 and the heat-conducting silicone grease 23, and is quickly conducted to the heat sink plate 24. The function of the heat sink plate 24 is to evenly disperse the concentrated heat to optimize the heat transfer efficiency. Finally, the heat dissipation fins 25, as an external component of the heat dissipation mechanism 2, are in contact with the ambient air, and the heat is effectively discharged through natural convection or forced ventilation to ensure the stable operation of the transformer at an appropriate temperature.

[0041] (2) During the installation process, the protective housing 21 is accurately positioned and sleeved on the outside of the winding skeleton 1, laying the foundation for the installation of the fixing mechanism 3. As the protective housing 21 is sleeved, the upper part of the winding skeleton 1 comes into contact with the guiding inclined surface of the insertion block 33, pushing the insertion block 33 to penetrate and compress the support spring 34 to prepare for the installation of the fixing mechanism 3. When the insertion block 33 is aligned with the card slot 36 on the winding skeleton 1, the resilience of the support spring 34 acts on the rotating plate 32, causing the insertion block 33 to be pushed out of the connecting slot 35 and accurately inserted into the card slot 36. This series of actions ensures the firm connection between the protective housing 21 and the winding skeleton 1, providing reliable structural support for the transformer.

Claims

1. An SMD transformer skeleton structure, comprising a winding skeleton (1), characterized in that: A heat dissipation mechanism (2) is provided on the outer side of the winding skeleton (1), and fixing mechanisms (3) are provided on the inner walls of the left and right sides of the heat dissipation mechanism (2); The heat dissipation mechanism (2) includes a protective shell (21), a heat conduction diaphragm (22), a heat conduction silicone grease (23), a heat pipe (24) and heat dissipation fins (25). The protective shell (21) is sleeved on the outer side of the winding skeleton (1). The heat conduction diaphragm (22) is fixed to the inner top wall of the protective shell (21). The heat conduction silicone grease (23) is filled between the opposite sides of the heat conduction diaphragm (22) and the protective shell (21). A connection port is formed on the upper surface of the protective shell (21), and the heat pipe (24) is fixed to the inner wall of the connection port. The heat dissipation fins (25) are fixed to the upper surface of the heat pipe (24).

2. The SMD transformer skeleton structure according to claim 1, characterized in that: A transformer winding is wound around the outer side of the winding skeleton (1), and the protective shell (21) is in the shape of a cuboid with a hollow interior and a missing bottom.

3. A SMD transformer skeleton structure according to claim 1, characterized in that: The lower surface of the heat pipe (24) is attached to the heat conduction silicone grease (23).

4. A SMD transformer skeleton structure according to claim 1, characterized in that: The heat dissipation fins (25) include a plurality of copper sheets vertically fixed to the upper surface of the heat pipe (24), and the plurality of copper sheets are uniformly distributed along the length direction of the heat pipe (24).

5. The SMD transformer skeleton structure according to claim 1, characterized in that: The thickness of the heat pipe (24) is equal to the depth of the inner cavity of the connection port, and the length of the heat dissipation fins (25) is equal to the length of the heat pipe (24).

6. The SMD transformer skeleton structure according to claim 1, characterized in that: The fixing mechanism (3) includes two connecting shafts (31), two rotating plates (32), two inserting blocks (33) and two supporting springs (34). Connection grooves (35) are formed on the inner walls of the left and right sides of the protective shell (21), and the two connecting shafts (31) are respectively fixed between the front and rear inner walls of the two connection grooves (35). The two rotating plates (32) are respectively rotatably connected to the outer sides of the two connecting shafts (31). The two inserting blocks (33) are respectively fixed to the opposite sides of the two rotating plates (32). The two supporting springs (34) are respectively fixed to the inner walls of the opposite sides of the two connection grooves (35), and the opposite ends of the two supporting springs (34) are respectively fixed to the opposite sides of the two rotating plates (32).

7. The SMD transformer skeleton structure according to claim 6, wherein: Guide slopes are formed on the lower surfaces of the two inserting blocks ( 8. The SMD transformer skeleton structure according to claim 6, characterized in that: ​

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