WO2023098266A1 - 模块电源的引脚结构和模块电源 - Google Patents

模块电源的引脚结构和模块电源 Download PDF

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Publication number
WO2023098266A1
WO2023098266A1 PCT/CN2022/122038 CN2022122038W WO2023098266A1 WO 2023098266 A1 WO2023098266 A1 WO 2023098266A1 CN 2022122038 W CN2022122038 W CN 2022122038W WO 2023098266 A1 WO2023098266 A1 WO 2023098266A1
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WO
WIPO (PCT)
Prior art keywords
protrusion
plastic body
metal pin
pin
power supply
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PCT/CN2022/122038
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English (en)
French (fr)
Inventor
谭友元
梁文杰
Original Assignee
广州金升阳科技有限公司
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Application filed by 广州金升阳科技有限公司 filed Critical 广州金升阳科技有限公司
Publication of WO2023098266A1 publication Critical patent/WO2023098266A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/02—Containers; Seals
    • H01L23/10—Containers; Seals characterised by the material or arrangement of seals between parts, e.g. between cap and base of the container or between leads and walls of the container
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion

Definitions

  • the invention relates to the technical field of module power supplies, in particular to a pin structure of a module power supply and the module power supply.
  • the metal pin and the product need to be welded and assembled first, and then the plastic body is used as a cover to assemble the product.
  • the assembly process of this kind of pin structure is complicated, requiring at least two assembly steps, and the assembly process is many and the working hours are long.
  • This structure has requirements for the thickness and size of the metal pins. When the thickness of the metal pins is thin, such as the thickness of the metal pins is 0.25mm, and the metal pins are long, the metal pins are easily deformed, thereby increasing the number of metal pins.
  • the difficulty of welding and assembly affects the appearance of the product.
  • the other is the integral injection molding/compression molding of the metal pin and the plastic body.
  • the metal pin and the plastic body are integrally injected/compression molded, the assembly process can be reduced.
  • such metal pins are generally wrapped by plastic on both sides in the thickness direction of the metal pins. Due to the integrity requirements of injection molding, the thickness of the metal pin will be thicker, generally greater than the thickness of the metal pin + 2 times the thickness of the plastic body. An increase in lead thickness results in an increase in product size. And this kind of pin structure, when the overall size of the product has a certain requirement, it will be necessary to reduce the size of the PCB, thereby reducing the layout space of the components.
  • the main purpose of the present invention is to provide a pin structure of a module power supply and the module power supply, so as to solve the problems in the prior art that the pins of the module power supply are thick and the metal pins are difficult to weld and assemble.
  • a pin structure of a module power supply including: a plastic body, the plastic body has a receiving area; a metal pin, the metal pin is integrally connected with the plastic body, and is located At the receiving area, the first surface of the metal pin is attached to the plastic body, and the second surface of the metal pin opposite to the first surface is exposed to the plastic body; the interlocking structure includes protrusions and recesses, and the protrusions and One of the recesses is located on the plastic body, and the other is located on the metal pin, and the protrusion extends into the recess to form an interlock and prevent the metal pin from coming out of the plastic body.
  • the metal pin has a protrusion
  • the protrusion is located at the peripheral edge of the metal pin, and extends along the first surface
  • the thickness of the protrusion is smaller than the thickness of the metal pin
  • the plastic body has a concave portion
  • the protrusion extends along the metal lead.
  • the peripheral side of the pin is provided continuously, or there are multiple protrusions arranged at intervals along the peripheral side of the metal pin.
  • the difference between the thickness of the protrusion and the thickness of the metal pin is ⁇ 0.4mm.
  • the metal pin has a through hole, and a part of the plastic body is located in the through hole.
  • the metal pin includes a bonding portion and a connecting portion, at least a part of the connecting portion and the bonding portion are disposed in the accommodation area, and a surface of the bonding portion and a part of the connecting portion serve as the first surface.
  • a part of the metal pin bends and protrudes toward the center of the plastic body, and the side of the bent protrusion of the metal pin away from the center of the plastic body serves as a recess, and the plastic body has a protrusion.
  • the recess is located on the second surface, the recess and the protrusion both extend along the width direction of the metal pin, and the protrusion is connected to two opposite sides of the containing area.
  • a via hole is provided at the protruding part of the metal pin, and a part of the protrusion is located in the via hole and connected to the side of the receiving area facing the first surface.
  • the metal pin includes a first section and a second section that are bent in sequence, the second section is bent toward the center of the plastic body, the first section has a first surface and a second surface, and the two sections of the second section Both surfaces are in contact with the plastic body, and the side of the second section away from the center of the plastic body is used as a concave part.
  • the thickness of the position on the plastic body corresponding to the bending protrusion of the metal pin is ⁇ 0.40 mm.
  • the metal pin has a protrusion
  • the protrusion is located on the first surface, and protrudes toward the plastic body
  • the plastic body has a recess
  • the protrusion is integrally provided with the metal pin, or the protrusion and the metal pin are separately processed and connected together.
  • the size of the end of the protrusion close to the first surface is smaller than that of the end away from the first surface; and/or the protrusion is bent and hooked into the recess.
  • the protrusion has a connection hole, the axis of the connection hole is not perpendicular to the first surface, and a part of the plastic body is located in the connection hole.
  • the metal pin is provided with a butt hole, and the butt hole is used as a recess, and along the direction of approaching the plastic body, the diameter of the butt hole gradually decreases, and the plastic body has a protrusion.
  • a module power supply including a product body and a plurality of pin structures of the above-mentioned module power supply, and pin structures are provided on opposite sides of the product body.
  • the protrusions and recesses of the interlocking structure can be respectively arranged on the plastic body and the metal pin as required.
  • the plastic body and the metal pin are integrally injected or molded When molding, the protrusions extend into the recesses, so that the interlocking relationship between the protrusions and the recesses is formed, and the interlocking relationship is used to make the plastic body and the metal pins connected together reliably. This process reduces the number of pin assembly times, It is convenient and fast, avoiding the metal pin falling off from the plastic body, and improving the mechanical vibration resistance after the pin is assembled.
  • the first surface of the metal pin is attached to the plastic body, while the second surface is exposed to the plastic body, thereby This allows the metal pins to be in direct contact with the product, ensuring good heat dissipation performance and at the same time ensuring the reliability of the connection between the metal pins and the plastic body.
  • the thickness of the pin structure is the thickness of the metal pin plus the thickness of the plastic body on the side of the metal pin.
  • FIG. 1 shows a schematic structural view of the pin structure of Embodiment 1 of the present invention
  • Fig. 2 shows a side view of the metal pin in Fig. 1;
  • Fig. 3 shows a schematic structural diagram of the metal pin in Fig. 1;
  • FIG. 4 shows a schematic structural diagram of the module power supply of the present invention when the pin structure of Embodiment 1 is adopted;
  • FIG. 5 shows a schematic structural view of the metal pin of the pin structure of Embodiment 2 of the present invention
  • FIG. 6 shows a schematic structural view of the pin structure of Embodiment 4 of the present invention.
  • Figure 7 shows a side view of Figure 6
  • Fig. 8 shows a side view of Fig. 6 at the via hole
  • Fig. 9 shows a schematic structural diagram of the module power supply of the present invention when the pin structure of Embodiment 5 is adopted;
  • FIG. 10 shows a schematic structural view of the pin structure of Embodiment 6 of the present invention.
  • FIG. 11 shows a schematic structural view of the pin structure of the seventh embodiment of the present invention where the protrusion is located at the non-edge of the first surface;
  • Fig. 12 shows a schematic structural view of the pin structure of the seventh embodiment of the present invention where the protrusion is located at the edge of the first surface;
  • FIG. 13 shows a schematic structural diagram of the pin structure of Embodiment 8 of the present invention.
  • FIG. 14 shows a schematic structural view of the pin structure of Embodiment 9 of the present invention.
  • FIG. 15 shows a side view of FIG. 14 .
  • Plastic body 20. Metal pin; 21. First surface; 22. Second surface; 23. Through hole; 24. Via hole; 25. Fitting part; 26. Connection part; 31. Protrusion; 311 , connection hole; 32, concave portion; 40, product body; 41, PCB circuit board; 42, plastic package.
  • orientation words such as “upper, lower, top, bottom” are usually for the directions shown in the drawings, or for the parts themselves in the vertical, In terms of vertical or gravitational direction; similarly, for the convenience of understanding and description, “inner and outer” refer to the inner and outer relative to the outline of each component itself, but the above orientation words are not used to limit the present invention.
  • the present invention provides a pin structure of the module power supply and the module power supply.
  • the pin structure of a module power supply as shown in Figures 1 to 3 includes a plastic body 10, a metal pin 20 and an interlocking structure, the plastic body 10 has a receiving area; the metal pin 20 and the plastic body 10 are integrally formed and connected , and located at the receiving area, the first surface 21 of the metal pin 20 is bonded to the plastic body 10, and the second surface 22 of the metal pin 20 opposite to the first surface 21 is exposed to the plastic body 10; the interlocking structure includes convex Protrusion 31 and recess 32, one of the protrusion 31 and recess 32 is located on the plastic body 10, the other is located on the metal pin 20, the protrusion 31 extends into the recess 32 to form an interlock, and hinders the metal pin 20 escapes from the plastic body 10.
  • the interlocking structure is provided, and the protrusion 31 and the concave portion 32 of the interlocking structure can be respectively arranged on the plastic body 10 and the metal pin 20 as required.
  • the protrusion 31 extends into the recess 32, so that the butt joint between the protrusion 31 and the recess 32 forms an interlocking relationship, and the plastic body 10 and the metal pin 20 are reliably connected together by using the interlocking relationship. This process reduces the number of pin assembly times, is convenient and quick, avoids the situation that the metal pin 20 falls off from the plastic body 10, and improves the resistance to mechanical vibration after the pin is assembled.
  • the thickness of the pin structure is the thickness of the metal pin 20 plus the thickness of the plastic body 10 on one side of the metal pin 20.
  • the metal pin 20 is in the shape of a sheet with a certain thickness as a whole, as shown in FIG.
  • the size of the area is small
  • the function of the bonding part 25 is mainly used to cooperate with the plastic body 10 for bonding
  • the function of the connecting part 26 is mainly used to cooperate with external components such as products.
  • the bonding portion 25 is arranged in the accommodation area, and the two opposite surfaces of the bonding portion 25 are respectively the first surface 21 and the second surface 22, and the first surface 21 and the second surface 22 are parallel to each other.
  • the second surface 22 is coplanar with the outer surface of the plastic body 10 .
  • the part of the interlocking structure located on the metal pin 20 is disposed on the adhering portion 25 , so as to facilitate interlocking with the plastic body 10 .
  • the connecting portion 26 does not cooperate with the plastic body 10 , and thus is located outside the receiving area and exposed to the plastic body 10 to facilitate cooperation with external components.
  • the direction perpendicular to the first surface 21 is defined as the front-rear direction, and the direction parallel to the first surface 21 and extending laterally is The left-right direction is parallel to the first surface 21 and the longitudinal extension direction is the up-down direction.
  • the metal pin 20 has a protrusion 31
  • the plastic body 10 has a recess 32 .
  • the protrusion 31 is located at the peripheral edge of the metal pin 20, extends along the first surface 21, and is arranged parallel to the first surface 21, thereby forming a stepped structure at the edge of the metal pin 20,
  • a recess 32 is provided on the side of the receiving area, and the protrusion 31 is accommodated in the recess 32 , so that the metal pin 20 cannot escape from the plastic body 10 back and forth through the stop of the protrusion 31 by the recess 32 .
  • the peripheral edge mentioned here refers to the side of the metal pin 20 in the thickness direction, that is, the side adjacent to the first surface 21 .
  • the thickness of the protrusion 31 is smaller than the thickness of the metal pin 20, so that the protrusion 31 forms a stepped structure, the recess 32 surrounds the periphery of the protrusion 31, and the outer edge of the recess 32 abuts against the stepped structure to ensure Interlocking effect between the protrusions 31 .
  • the surface of the protrusion 31 in this embodiment facing the same direction as the first surface 21 is arranged to coincide with the first surface 21, while the opposite surface is parallel to and not coincident with the second surface 22, so that the The above-mentioned stepped structure is formed between the opposite surface and the second surface 22 .
  • the specific positional relationship between the protrusion 31 and the first surface 21 and the second surface 22 can also be adjusted accordingly as required.
  • the difference between the thickness of the protrusion 31 and the thickness of the metal pin 20 is ⁇ 0.4 mm, so as to improve the interlocking effect between the protrusion 31 and the recess 32 .
  • the protrusions 31 are continuously arranged along the peripheral side of the metal pin 20 . Specifically, one edge of the bonding portion 25 is connected to the connecting portion 26 , and the other three sides are formed with protrusions 31 , so that the contact range between the protrusions 31 and the concave portion 32 is large, and the interlocking effect is more reliable. However, the interlock between the protrusion 31 and the concave portion 32 at this time can only lock the movement in the front, rear, left and right directions, and the movement locking effect in the up and down direction is relatively poor.
  • a through hole 23 is opened on the part 25. As shown in FIG. 3, the through hole 23 runs through both sides of the metal pin 20 in the thickness direction.
  • the protrusion 31 in this embodiment can be formed by a stamping process or an etching process as required. Specifically, when the stamping process is adopted, the periphery of the metal pin 20 is flattened by stamping, so as to form the protrusion 31 with a thinner thickness. When the etching process is adopted, a part of the thickness is etched away from the periphery of the metal pin 20 , so as to form the protrusion 31 with a thinner thickness. In comparison, the protrusion 31 produced by the etching process has higher precision and can be produced on a thinner metal pin 20 .
  • this embodiment also provides a module power supply, including a product body 40 and a plurality of pin structures of the above-mentioned module power supply
  • the product body 40 of this embodiment includes a PCB circuit board 41 and a plastic package 42
  • the plastic package 42 is basically the same as the plastic body 10 with the pin structure
  • the PCB circuit board 41 is arranged in the plastic package 42 to form the product body 40
  • pin structures are arranged on opposite sides of the product body 40 .
  • the difference from the first embodiment is that the specific arrangement of the protrusion 31 is different.
  • the protrusions 31 are not continuously arranged along the circumferential direction of the metal pin 20, but discontinuously arranged, so that a plurality of protrusions 31 are arranged along the metal lead 20 between each protrusion 31. There are intervals formed on the peripheral side of the foot 20. Correspondingly, there are multiple recesses 32 on the plastic body 10, which are arranged at intervals along the peripheral side of the receiving area, so that the recesses 32 and the protrusions 31 are matched one by one. During processing, Each protrusion 31 naturally forms a cooperating recess 32 .
  • the space between each protrusion 31 is also filled by the plastic body 10, and the interlocking cooperation between the protrusion 31 and the recess 32 can not only limit the movement of the metal pin 20 in the front, rear, left and right directions, but also can control the movement of the metal pin 20 up and down.
  • the direction is limited, so that the metal pin 20 can't come out of the plastic body 10 in the up and down, front and back, and left and right directions through the interlocking cooperation between the protrusion 31 and the concave part 32 .
  • the through hole 23 in the first embodiment may not be provided.
  • the difference from the first embodiment lies in that the way of restricting the movement in the up and down directions is different.
  • the bonding portion 25 not only the bonding portion 25 but also the connecting portion 26 are accommodated in the accommodation area. Specifically, a part of the connecting portion 26 close to the bonding portion 25 and the bonding portion 25 are both arranged in the accommodation area, so that a part of the connecting portion 26 and the entire bonding portion 25 are in the plastic body 10, because The size of the bonding part 25 is larger than the size of the connecting part 26. Therefore, the transition part between the two naturally produces a stop effect with the plastic body 10, so that the metal pin 20 cannot move up and down, so that it is different from that of the first embodiment.
  • the through holes 23 have similar functions, both of which can limit the movement of the metal pin 20 in the up and down direction.
  • one surface of the fitting part 25 and one surface of the part of the connection part 26 located in the receiving area are jointly used as the first surface 21, and correspondingly, the part on the other side opposite to the above-mentioned first surface 21 is the second surface.
  • Surface 22 is the part on the other side opposite to the above-mentioned first surface 21.
  • Embodiment 1 lies in the specific arrangement of the interlocking structure.
  • the metal pin 20 has a concave portion 32
  • the plastic body 10 has a protrusion 31 .
  • a part of the metal pin 20 bends and protrudes toward the direction close to the plastic body 10, so that the first surface 21 forms a protruding portion, and the second surface 22 forms a concave portion 32, when the metal pin 20 and
  • the plastic body 10 is integrally formed, a part of the plastic body 10 protrudes into the recess 32, and this part is the protrusion 31, and the interlocking relationship is formed between the protrusion 31 and the recess 32, so that the metal pin 20 is up and down. , front and back, and left and right directions, the plastic body 10 cannot be disengaged.
  • the recess 32 extends along the width direction of the metal pin 20, that is, the left and right directions, and is connected to the left and right edges of the metal pin 20, so that the protrusion 31 also extends along the width direction of the metal pin 20, Moreover, the protrusion 31 is connected to the opposite left and right sides of the receiving area, so as to ensure the effective connection between the protrusion 31 and the plastic body 10 itself.
  • the protrusion of the metal pin 20 that is, a via hole 24 is provided in the recess 32, and the via hole 24 runs through both sides of the metal pin 20 in the thickness direction, so that the metal pin 20 and the plastic body 10 are integrated
  • a part of the protrusion 31 is located in the via hole 24, and is connected with the side of the receiving area facing the first surface 21.
  • This part of the structure is also interlocked with the via hole 24, thereby enhancing the interlocking effect and ensuring that the metal lead Reliability of the connection between the pin 20 and the plastic body 10 .
  • the thickness of the plastic body 10 at the position corresponding to the protrusion of the metal pin 20 is ⁇ 0.40 mm.
  • the interlocking structure is easy to manufacture, and the interlocking structure can be formed by stamping a mold. And the production quality is generally good.
  • the difference from the fourth embodiment is that the specific bending manner of the metal pin 20 is different.
  • the bending of the metal pin 20 is not bent into the form of the pit in the fourth embodiment, but bent as a whole, as shown in FIG. 9 .
  • the metal pin 20 is bent into a first section and a second section, wherein the second section is bent toward the center of the plastic body 10 as a whole compared to the first section, and at this time, the two sections of the first section
  • the two surfaces are the first surface 21 and the second surface 22, and the side of the two surfaces of the second segment away from the center of the plastic body 10 has a certain distance compared to the second surface 22 of the first segment, so this A portion serves as the recess 32 .
  • the plastic body 10 still has a protrusion 31, and the protrusion 31 covers the surface of the second section away from the center of the plastic body 10, so that both surfaces of the second section are in contact with the plastic body 10, so that the metal pin 20 is limited on the plastic body 10, and it cannot escape from the plastic body 10 in the up and down, front and rear, left and right directions.
  • the thickness of the plastic body 10 on both sides of the second segment is greater than or equal to 0.40mm.
  • the metal pin 20 in Embodiment 4 is more attached to the side of the product body 40 in actual use, which is beneficial to the heat dissipation of the product.
  • the metal pin 20 of the straight-face type in the first embodiment can be thinner than the integrally bent metal pin 20 in the fifth embodiment.
  • the difference from the first embodiment is that the specific arrangement of the protrusion 31 and the recess 32 is different.
  • the metal pin 20 has a protrusion 31
  • the plastic body 10 has a recess 32 .
  • the protrusion 31 of this embodiment is not disposed on the peripheral edge of the metal pin 20, but is disposed on the first surface 21.
  • the protrusion 31 is located on the first surface 21 and protrudes toward the plastic body 10, and the corresponding position on the plastic body 10 is provided with a recess 32.
  • the protrusion 31 Located within the recess 32 to form an interlocking relationship with the recess 32 .
  • the size of the end of the protrusion 31 close to the first surface 21 is smaller than the size of the end far away from the first surface 21.
  • the shape of the recess 32 matches the protrusion 31.
  • the side surface of the protrusion 31 Cooperate with the side of the recess 32 to prevent the protrusion 31 from coming out of the recess 32, so that the metal pin 20 cannot come out of the plastic body 10 in the up and down, front and back, and left and right directions.
  • the cross-section of the protrusion 31 is trapezoidal, the short side of the trapezoid is connected to the first surface 21 as an end close to the first surface 21, and the long side of the trapezoid is the end away from the first surface 21, and the trapezoidal long side is used as an end away from the first surface 21.
  • the slope cooperates with the slope of the concave portion 32 , thereby preventing the protrusion 31 from coming out of the concave portion 32 , and realizing a reliable connection between the metal pin 20 and the plastic body 10 .
  • the number of protrusions 31 can be set to one or more according to needs.
  • each protrusion 31 is arranged on the first surface 21, and the specific setting position can also be selected according to needs. Either at the edge or not at the edge of the first surface 21 .
  • the metal protrusion 31 is manufactured first, and then the metal protrusion 31 is patch-welded on the metal pin 20 . Since the size of the metal protrusions 31 is very small, it is necessary to use precise etching equipment for high process control.
  • the difference from the sixth embodiment is that the specific arrangement of the protrusion 31 is different.
  • the cross-section of the protrusion 31 is not a trapezoidal structure, but is bent to form an approximately L-shaped structure.
  • the shape of the recess 32 matches the shape of the protrusion 31.
  • one end of the L-shaped structure is connected to the shape of the protrusion 31.
  • the first surface 21 is connected, and the other end is hooked in the recess 32 of the plastic body 10, thereby preventing the protrusion 31 from coming out of the recess 32, and preventing the metal pin 20 from coming out of the plastic body 10, so as to realize the connection between the metal pin 20 and the plastic body 10.
  • the interlocking effect of the plastic body 10 is not a trapezoidal structure, but is bent to form an approximately L-shaped structure.
  • the shape of the recess 32 matches the shape of the protrusion 31.
  • one end of the L-shaped structure is connected to the shape of the protrusion 31.
  • the first surface 21 is connected, and the other end is hooked in the recess 32 of the plastic body 10, thereby preventing
  • the number of protrusions 31 and the specific positions on the first surface 21 of this embodiment can be selected according to the needs, and they can be arranged on the edge or non-edge of the first surface 21. As shown in Figure 11 and Figure 12.
  • the protrusion 31 is arranged on the edge of the first surface 21 and is integrally arranged, that is, when the arrangement shown in FIG. sheet, and then bend the sheet backwards to form an L-shaped protrusion 31 .
  • the specific connection relationship between the protrusion 31 and the metal pin 20 can be set accordingly according to needs.
  • the protrusion 31 can be formed by bending a part of the metal pin 20, or can be Additional components connected to the metal pins 20 by soldering or the like.
  • the difference from the sixth and seventh embodiments is that the specific structure of the protrusion 31 is different.
  • the protrusion 31 also has a connection hole 311, the axis of the connection hole 311 is not perpendicular to the first surface 21, and the connection hole 311 runs through the opposite sides of the protrusion 31, when the metal
  • a part of the plastic body 10 is located in the connecting hole 311 , and this part cooperates with the connecting hole 311 , thereby further enhancing the interlocking effect and ensuring the reliability of the interlocking.
  • the difference from the first embodiment is that the specific arrangement of the protrusion 31 and the recess 32 is different.
  • the metal pin 20 is provided with a butt hole, and the butt hole serves as a recess 32 , and the diameter of the butt hole gradually decreases along the direction approaching the plastic body 10 .
  • the plastic body 10 has a protrusion 31, and the shape of the protrusion 31 matches the shape of the docking hole. In this way, the cooperation between the docking hole and the protrusion 31 prevents the metal pin 20 from coming out of the plastic body in the up, down, left and right directions.
  • the shape of the docking hole prevents the protrusion 31 from coming out of the docking hole in the front-back direction, which also makes it impossible for the metal pin 20 to come out of the plastic body 10 in the front-back direction, so as to realize a reliable connection between the two.
  • the setting method of this embodiment is suitable for use when the thickness of the metal pin 20 is relatively thick, so it is not necessary to process the metal pin 20 such as winding and etching, and the interlocking structure can be completed only by stamping.
  • cooperation between the protrusion 31 and the recess 32 is a cooperation relationship formed when the metal pin 20 and the plastic body 10 are integrally formed.
  • the arrangement manners in the foregoing embodiments may be combined or replaced with each other as required.
  • the metal pins can be directly in contact with the product, ensuring the reliability of the connection between the metal pins and the plastic body while ensuring good heat dissipation performance;
  • the thickness of the pin structure is the thickness of the metal pin plus the thickness of the plastic body on the side of the metal pin.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
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Abstract

一种模块电源的引脚结构和模块电源，其中，引脚结构包括：塑胶体（10），塑胶体（10）具有容纳区域；金属引脚（20），金属引脚（20）与塑胶体一体成型连接，并位于容纳区域处，金属引脚（20）的第一表面（21）与塑胶体（10）贴合，金属引脚（20）的与第一表面（21）相对的第二表面（22）外露于塑胶体（10）；互锁结构，互锁结构包括凸起（31）和凹部（32），凸起（31）和凹部（32）中的一者位于塑胶体（10）上，另一者位于金属引脚（20）上，凸起（31）伸入至凹部（32）内形成互锁，并阻碍金属引脚（20）脱出塑胶体（10）。本发明解决了现有技术中模块电源的引脚厚度较厚且金属引脚焊接组装困难的问题。

Description

模块电源的引脚结构和模块电源 技术领域
本发明涉及模块电源技术领域，具体而言，涉及一种模块电源的引脚结构和模块电源。
背景技术
现有双面塑封工艺的模块电源产品的领域中，当塑封体和PCB尺寸一样时，引脚从电源产品的侧面引出，引脚结构一般分为以下两种。
一种为金属引脚和塑胶体分离，需先将金属引脚与产品焊接组装，再将塑胶体当成盖子组装到产品上。此种引脚结构的组装工序复杂，至少需要2步组装，组装工序多、工时长。此种结构对金属引脚的厚度、尺寸有要求，金属引脚厚度较薄时，如金属引脚厚度为0.25mm、且金属引脚较长时，金属引脚易变形，从而增加金属引脚的焊接组装难度，影响产品外观。
另一种为金属引脚和塑胶体一体注塑/模压成型，在此种方案中，虽然由于金属引脚和塑胶体为一体注塑/模压成型，可以减少组装工序。但是此种金属引脚一般在金属引脚厚度方向，两侧均被塑胶体包裹。由于注塑的完整性要求，金属引脚的厚度会较厚，一般会大于金属引脚厚度+2倍的塑胶体厚度。引脚厚度的增加会导致产品尺寸的增加。且此种引脚结构，在产品总体尺寸有一定要求时，会需要减少PCB的尺寸，从而减少元件的布局空间。
发明内容
本发明的主要目的在于提供一种模块电源的引脚结构和模块电源，以解决现有技术中模块电源的引脚厚度较厚且金属引脚焊接组装困难的问题。
为了实现上述目的，根据本发明的一个方面，提供了一种模块电源的引脚结构，包括：塑胶体，塑胶体具有容纳区域；金属引脚，金属引脚与塑胶体一体成型连接，并位于容纳区域处，金属引脚的第一表面与塑胶体贴合，金属引脚的与第一表面相对的第二表面外露于塑胶体；互锁结构，互锁结构包括凸起和凹部，凸起和凹部中的一者位于塑胶体上，另一者位于金属引脚上，凸起伸入至凹部内形成互锁，并阻碍金属引脚脱出塑胶体。
进一步地，金属引脚具有凸起，凸起位于金属引脚的周侧边缘处，并沿第一表面延伸，凸起的厚度小于金属引脚的厚度，塑胶体具有凹部，凸起沿金属引脚的周侧连续设置，或凸起为多个，并沿金属引脚的周侧间隔设置。
进一步地，凸起的厚度与金属引脚的厚度之间的差值≥0.4mm。
进一步地，金属引脚具有通孔，塑胶体的一部分位于通孔内。
进一步地，金属引脚包括贴合部和连接部，连接部的至少一部分和贴合部均设置在容纳区域内，贴合部的表面和连接部的一部分表面作为第一表面。
进一步地，金属引脚的一部分向靠近塑胶体中心的方向弯折突出，金属引脚的弯折突出处远离塑胶体中心的一侧作为凹部，塑胶体上具有凸起。
进一步地，凹部位于第二表面上，凹部和凸起均沿金属引脚的宽度方向延伸，且凸起与容纳区域相对的两侧连接。
进一步地，金属引脚的突出处设置有过孔，凸起的一部分位于过孔内，并与容纳区域朝向第一表面的侧面连接。
进一步地，金属引脚包括顺次弯折的第一段和第二段，第二段向靠近塑胶体中心的方向弯折，第一段具有第一表面和第二表面，第二段的两个表面均与塑胶体接触，第二段远离塑胶体中心的一侧作为凹部。
进一步地，塑胶体上与金属引脚的弯折突出处对应的位置处的厚度≥0.40mm。
进一步地，金属引脚具有凸起，凸起位于第一表面上，并向塑胶体突出，塑胶体具有凹部，凸起与金属引脚一体设置，或者凸起与金属引脚分体加工并连接在一起。
进一步地，凸起靠近第一表面的一端的大小小于远离第一表面的一端的大小；和/或凸起呈弯折状，并钩接在凹部内。
进一步地，凸起具有连接孔，连接孔的轴线与第一表面不垂直设置，塑胶体的一部分位于连接孔内。
进一步地，金属引脚开设有对接孔，对接孔作为凹部，并且沿靠近塑胶体的方向，对接孔的直径逐渐缩小，塑胶体具有凸起。
根据本发明的另一方面，提供了一种模块电源，包括产品本体和多个上述的模块电源的引脚结构，产品本体相对的两侧均设置有引脚结构。
应用本发明的技术方案，通过设置有互锁结构，互锁结构的凸起和凹部可以根据需要分别设置在塑胶体和金属引脚上，当将塑胶体和金属引脚通过一体注塑或一体模压成型时，凸起伸入至凹部内，从而使得凸起与凹部之间对接形成互锁关系，利用互锁关系使得塑胶体与金属引脚可靠地连接在一起，该过程减少引脚组装次数，方便快捷，避免了金属引脚从塑胶体上脱落的情况，提升引脚组装后的抗机械振动能力，同时金属引脚的第一表面与塑胶体贴合，而第二表面外露于塑胶体，从而使得金属引脚可以直接与产品接触，在保证良好散热性能的同时保证金属引脚和塑胶体连接的可靠性。并且引脚结构的厚度为金属引脚的厚度加金属引脚一侧的塑胶体的厚度，在产品尺寸一定时，增加PCB的布局尺寸，减少引脚厚度，从而减少产品尺寸。
附图说明
构成本申请的一部分的说明书附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1示出了本发明的实施例一的引脚结构的结构示意图；
图2示出了图1中的金属引脚的侧视图；
图3示出了图1中的金属引脚的结构示意图；
图4示出了本发明的模块电源采用实施例一的引脚结构时的结构示意图；
图5示出了本发明的实施例二的引脚结构的金属引脚的结构示意图；
图6示出了本发明的实施例四的引脚结构的结构示意图；
图7示出了图6的侧视图；
图8示出了图6在过孔处的侧视图；
图9示出了本发明的模块电源采用实施例五的引脚结构时的结构示意图；
图10示出了本发明的实施例六的引脚结构的结构示意图；
图11示出了本发明的实施例七的引脚结构在凸起位于第一表面非边缘处的结构示意图；
图12示出了本发明的实施例七的引脚结构在凸起位于第一表面边缘处的结构示意图；
图13示出了本发明的实施例八的引脚结构的结构示意图；
图14示出了本发明的实施例九的引脚结构的结构示意图；
图15示出了图14的侧视图。
其中，上述附图包括以下附图标记：
10、塑胶体；20、金属引脚；21、第一表面；22、第二表面；23、通孔；24、过孔；25、贴合部；26、连接部；31、凸起；311、连接孔；32、凹部；40、产品本体；41、PCB电路板；42、塑封体。
具体实施方式
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本发明。
需要指出的是，除非另有指明，本申请使用的所有技术和科学术语具有与本申请所属技术领域的普通技术人员通常理解的相同含义。
在本发明中，在未作相反说明的情况下，使用的方位词如“上、下、顶、底”通常是针对附图所示的方向而言的，或者是针对部件本身在竖直、垂直或重力方向上而言的；同样地，为便于理解和描述，“内、外”是指相对于各部件本身的轮廓的内、外，但上述方位词并不用于限制本发明。
为了解决现有技术中模块电源的引脚厚度较厚且金属引脚焊接组装困难的问题，本发明提供了一种模块电源的引脚结构和模块电源。
实施例一
如图1至图3所示的一种模块电源的引脚结构，包括塑胶体10、金属引脚20和互锁结构，塑胶体10具有容纳区域；金属引脚20与塑胶体10一体成型连接，并位于容纳区域处，金属引脚20的第一表面21与塑胶体10贴合，金属引脚20的与第一表面21相对的第二表面22外露于塑胶体10；互锁结构包括凸起31和凹部32，凸起31和凹部32中的一者位于塑胶体10上，另一者位于金属引脚20上，凸起31伸入至凹部32内形成互锁，并阻碍金属引脚20脱出塑胶体10。
本实施例通过设置有互锁结构，互锁结构的凸起31和凹部32可以根据需要分别设置在塑胶体10和金属引脚20上，当将塑胶体10和金属引脚20通过一体注塑或一体模压成型时，凸起31伸入至凹部32内，从而使得凸起31与凹部32之间对接形成互锁关系，利用互锁关系使得塑胶体10与金属引脚20可靠 地连接在一起，该过程减少引脚组装次数，方便快捷，避免了金属引脚20从塑胶体10上脱落的情况，提升引脚组装后的抗机械振动能力，同时金属引脚20的第一表面21与塑胶体10贴合，而第二表面22外露于塑胶体10，从而使得金属引脚20可以直接与产品接触，在保证良好散热性能的同时保证金属引脚20和塑胶体10连接的可靠性。并且引脚结构的厚度为金属引脚20的厚度加金属引脚20一侧的塑胶体10的厚度，在产品尺寸一定时，增加PCB的布局尺寸，减少引脚厚度，从而减少产品尺寸。
一般而言，金属引脚20整体呈有一定厚度的片状，如图2所示，具体包括贴合部25和连接部26两部分，其中贴合部25的面积大小较大，连接部26的面积大小较小，贴合部25的作用主要用于与塑胶体10配合进行贴合，连接部26的作用主要用于与产品等外部部件配合。一体成型时，贴合部25设置在容纳区域内，贴合部25的相对的两个表面分别为第一表面21和第二表面22，第一表面21和第二表面22之间相互平行，并且第二表面22与塑胶体10的外表面之间共面设置。互锁结构中位于金属引脚20上的部分设置在贴合部25上，从而便于与塑胶体10配合互锁。而连接部26不与塑胶体10配合，因而位于容纳区域外，外露于塑胶体10，以便于与外部部件配合。
为了让便于后续对限制方向的解释，本实施例以图1为参照，按照人员的视角，将与第一表面21垂直的方向定义为前后方向，与第一表面21平行且横向延伸的方向为左右方向，与第一表面21平行且纵向延伸方向为上下方向。
在本实施例中，金属引脚20具有凸起31，塑胶体10具有凹部32。具体而言，凸起31位于金属引脚20的周侧边缘处，并沿第一表面21延伸，与第一表面21之间平行设置，从而在金属引脚20的边缘处形成阶梯状结构，相应地，容纳区域的侧边设置有凹部32，凸起31容纳在凹部32内，从而通过凹部32对凸起31的止挡使得金属引脚20无法前后脱出塑胶体10。这里所说的周侧边缘是指金属引脚20厚度方向的侧面上，也就是与第一表面21相邻的侧面。
优选地，凸起31的厚度小于金属引脚20的厚度，这样，凸起31处形成阶梯结构，凹部32包围凸起31的四周，凹部32的外边缘处抵接在阶梯结构处，以保证对凸起31之间的互锁效果。进一步优选地，本实施例的凸起31上与第一表面21朝向相同的表面与第一表面21之间重合设置，而相对的另一表面与 第二表面22平行且不重合，从而使得该相对的表面与第二表面22之间形成上述的阶梯结构。当然，凸起31与第一表面21和第二表面22的具体位置关系也可以根据需要进行相应调整。
优选地，凸起31的厚度与金属引脚20的厚度之间的差值≥0.4mm，从而提高凸起31与凹部32之间的互锁效果。
在本实施例中，凸起31沿金属引脚20的周侧连续设置。具体而言，贴合部25的一侧边缘与连接部26连接，另外三边均形成有凸起31，这样，凸起31与凹部32之间的接触范围大，互锁效果更可靠。但是此时的凸起31与凹部32之间的互锁仅能够锁定前后、左右方向的移动，而上下方向的移动锁定效果较差，基于此，本实施例还在金属引脚20的贴合部25上开设有通孔23，如图3所示，通孔23贯穿金属引脚20厚度方向的两侧，这样，当塑胶体10与金属引脚20一体成型时，塑胶体10的一部分位于通孔23内，通过该部分与通孔23之间的止挡配合，使得金属引脚20上下方向的运动被限制，配合凸起31与凹部32之间的互锁作用，使得金属引脚20上下、前后、左右方向均无法脱出塑胶体10，保证与塑胶体10连接的可靠性。
本实施例的凸起31可以根据需要采用冲压工艺或者蚀刻工艺形成。具体而言，采用冲压工艺时，将金属引脚20的四周通过冲压压扁，从而形成厚度较薄的凸起31。而采用蚀刻工艺时，将金属引脚20的四周蚀刻掉一部分厚度，从而形成厚度较薄的凸起31。相比而言，蚀刻工艺制作的凸起31的精度会更高，可以在更薄的金属引脚20上制作。
如图4所示，本实施例还提供了一种模块电源，包括产品本体40和多个上述的模块电源的引脚结构，本实施例的产品本体40包括PCB电路板41和塑封体42，塑封体42与引脚结构的塑胶体10基本相同，PCB电路板41设置在塑封体42内从而组成产品本体40，产品本体40相对的两侧均设置有引脚结构。
实施例二
与实施例一的区别在于，凸起31的具体设置方式不同。
如图5所示，在本实施例中，凸起31并非是沿金属引脚20的周向连续设置，而是非连续设置，从而多个凸起31，各凸起31之间沿金属引脚20的周侧形成有间隔，相应地，塑胶体10上的凹部32也为多个，且沿容纳区域的周侧 间隔设置，从而使得凹部32与凸起31一一对应配合，加工时，每个凸起31自然地形成一个配合的凹部32。这样，每个凸起31之间的间隔也被塑胶体10填充，凸起31与凹部32之间的互锁配合不仅能够对金属引脚20前后、左右方向的运动进行限制，还能够对上下方向进行限制，从而通过凸起31与凹部32之间的互锁配合即可实现金属引脚20上下、前后、左右方向均无法脱出塑胶体10的效果。此时，实施例一中的通孔23可以不必设置。
实施例三
与实施例一的区别在于，上下方向的运动的限制方式不同。
在本实施例中，容纳区域内不仅容纳有贴合部25，还容纳有连接部26。具体而言，连接部26上靠近贴合部25的一部分和贴合部25二者均设置在容纳区域内，这样，连接部26的一部分和整个贴合部25均在塑胶体10中，由于贴合部25的大小大于连接部26的大小，因而，二者之间过渡的部分自然地与塑胶体10产生止挡效果，使得金属引脚20无法上下方向运动，从而与实施例一中的通孔23作用相似，均能够起到限制金属引脚20上下方向运动的效果。此时贴合部25的一表面和连接部26的位于容纳区域内的部分的一表面共同作为第一表面21，相应地，与上述第一表面21相对的另一侧的部分即为第二表面22。
实施例四
与实施例一的区别在于，互锁结构的具体设置方式不同。
如图6至图8所示，在本实施例中，金属引脚20具有凹部32，塑胶体10具有凸起31。具体而言，金属引脚20的一部分向靠近塑胶体10的方向弯折突出，从而使得第一表面21形成突出部分，而在第二表面22上即形成凹部32，当将金属引脚20与塑胶体10一体成型时，塑胶体10的一部分伸入至凹部32内，该部分即为凸起31，凸起31与凹部32之间止挡配合形成互锁关系，从而使得金属引脚20上下、前后、左右方向均无法脱出塑胶体10。
在本实施例中，凹部32沿金属引脚20的宽度方向，即左右方向延伸，并且与金属引脚20的左右两边缘连接，这样，凸起31也沿金属引脚20的宽度方向延伸，且凸起31与容纳区域相对的左右两侧连接，保证凸起31与塑胶体10本身之间的有效连接。
可选地，金属引脚20的突出处，也就是在凹部32内设置有过孔24，过孔24贯穿金属引脚20厚度方向的两侧，这样在将金属引脚20与塑胶体10一体成型时，凸起31的一部分位于过孔24内，并与容纳区域朝向第一表面21的侧面连接，该部分结构与过孔24之间也进行互锁，从而增强互锁效果，保证金属引脚20与塑胶体10之间连接的可靠性。
优选地，塑胶体10上与金属引脚20的突出处对应的位置处的厚度≥0.40mm。
与实施例一相比，本实施例在做到金属引脚20的一面与塑胶体10的一面平行且在同一平面内的基础上，互锁结构容易制作，互锁结构可以通过模具冲压形成，且制作的质量一般较好。
实施例五
与实施例四的不同在于，金属引脚20的具体弯折方式不同。
在本实施例中，金属引脚20的弯折并非是弯折成实施例四中凹坑的形式，而是整体弯折，如图9所示。具体而言，金属引脚20弯折成第一段和第二段，其中，第二段相比于第一段整体向靠近塑胶体10中心的方向弯折，此时，第一段的两个表面即作为第一表面21和第二表面22，而第二段的两个表面中远离塑胶体10中心的一侧由于相比于第一段的第二表面22有一定的距离，因而该部分作为凹部32。相应地，塑胶体10上依旧具有凸起31，凸起31覆盖第二段上远离塑胶体10中心的表面，这样，第二段的两个表面均与塑胶体10接触，从而使得金属引脚20限制在塑胶体10上，其上下、前后、左右方向均无法脱出塑胶体10。
优选地，第二段两侧的塑胶体10的厚度≥0.40mm。
实施例四和实施例五相比而言，实施例四中的金属引脚20在实际使用是更加贴合产品本体40的侧面，有利于产品散热。实施例一与实施例五相比而言，实施例一中直面式的金属引脚20比实施例五中整体弯折式的金属引脚20的厚度可以更薄。
实施例六
与实施例一的区别在于，凸起31和凹部32的具体设置方式不同。
如图10所示，在本实施例中，与实施例一相同的是，金属引脚20具有凸起31，塑胶体10具有凹部32。而不同的是，本实施例的凸起31并非设置在金 属引脚20的周侧边缘处，而是设置在第一表面21上。具体而言，凸起31位于第一表面21上，并向塑胶体10突出，塑胶体10上的对应位置设置有凹部32，当将金属引脚20与塑胶体10一体成型时，凸起31位于凹部32内，从而与凹部32之间形成互锁关系。
在本实施例中，凸起31靠近第一表面21的一端的大小小于远离第一表面21的一端的大小，相应地，凹部32的形状与凸起31相配合，这样，凸起31的侧面与凹部32的侧面之间配合，阻碍凸起31脱出凹部32，实现金属引脚20上下、前后、左右方向均无法脱出塑胶体10的效果。
在本实施例中，凸起31的截面呈梯形，梯形的短边与第一表面21连接，作为靠近第一表面21的一端，梯形的长边即作为远离第一表面21的一端，梯形的斜面与凹部32的斜面配合，从而阻碍凸起31从凹部32内脱出，实现金属引脚20与塑胶体10之间的可靠连接。
可选地，凸起31的数量可以根据需要设置一个或者多个，设置有多个凸起31时，各凸起31在第一表面21上排列，具体设置位置也可以根据需要进行选择，设置在第一表面21的边缘或者非边缘处均可。
本实施例的互锁结构通过先制作出金属的凸起31，再将金属的凸起31贴片焊接在金属引脚20上。由于金属的凸起31的尺寸非常小，因而需要使用精密的蚀刻设备，进行较高的工艺控制。
实施例七
与实施例六的区别在于，凸起31的具体设置方式不同。
在本实施例中，凸起31的截面不呈梯形结构，而是弯折形成近似L形结构，相应地，凹部32的形状与凸起31的形状相配合，这样，L形结构的一端与第一表面21连接，另一端钩接在塑胶体10的凹部32内，从而阻碍凸起31从凹部32内脱出，也就防止金属引脚20从塑胶体10上脱出，实现金属引脚20与塑胶体10的互锁效果。
与实施例四相同，本实施例的凸起31的设置数量和在第一表面21上的具体设置位置均可以根据需要进行相应选择，设置在第一表面21的边缘或者非边缘处均可，如图11和图12所示。
当将凸起31设置在第一表面21的边缘、且采用一体设置时，即采用图12所示的设置方式时，可以先在金属引脚20的四周采用冲压工艺，将四周的部分冲压成薄片，然后将此薄片向后弯曲卷绕，即可形成L形的凸起31。
可选地，凸起31与金属引脚20之间的具体连接关系可以根据需要相应设置，具体而言，凸起31可以是由金属引脚20的一部分通过弯折等方式形成，也可以是额外的、通过焊接等方式连接在金属引脚20上的部件。
实施例八
与实施例六、七的区别在于，凸起31的具体结构不同。
如图13所示，在本实施例中，凸起31还具有连接孔311，连接孔311的轴线与第一表面21不垂直设置，并且连接孔311贯穿凸起31相对的两侧，当金属引脚20与塑胶体10一体成型时，塑胶体10的一部分位于连接孔311内，该部分与连接孔311配合，从而进一步增强互锁效果，保证互锁的可靠性。
实施例九
与实施例一的区别在于，凸起31、凹部32的具体设置方式不同。
如图14和图15所示，在本实施例中，金属引脚20开设有对接孔，对接孔作为凹部32，并且沿靠近塑胶体10的方向，对接孔的直径逐渐缩小。相应地，塑胶体10具有凸起31，凸起31的形状与对接孔的形状相匹配，这样，对接孔与凸起31之间配合使得金属引脚20无法在上下、左右方向上脱出塑胶体10，而对接孔的形状使得凸起31无法在前后方向脱出对接孔，也就使得金属引脚20无法在前后方向上脱出塑胶体10，实现二者之间的可靠连接。
本实施例的此种设置方式适合金属引脚20的厚度较厚时使用，因而不需要对金属引脚20做卷绕、蚀刻等加工，只通过冲压即可完成互锁结构的制作。
需要说明的是，上述凸起31与凹部32之间的配合是在将金属引脚20与塑胶体10一体成型加工时形成的配合关系。上述实施例之间的设置方式可以根据需要进行相互组合或者替换。
需要说明的是，上述实施例中的多个指的是至少两个。
从以上的描述中，可以看出，本发明上述的实施例实现了如下技术效果：
1、解决了现有技术中模块电源的引脚厚度较厚且金属引脚焊接组装困难的问题；
2、利用互锁关系使得塑胶体与金属引脚可靠地连接在一起，该过程减少引脚组装次数，方便快捷，避免了金属引脚从塑胶体上脱落的情况，提升引脚组装后的抗机械振动能力；
3、金属引脚可以直接与产品接触，在保证良好散热性能的同时保证金属引脚和塑胶体连接的可靠性；
4、引脚结构的厚度为金属引脚的厚度加金属引脚一侧的塑胶体的厚度，在产品尺寸一定时，增加PCB的布局尺寸，减少引脚厚度，从而减少产品尺寸。
显然，上述所描述的实施例仅仅是本发明一部分的实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本发明保护的范围。
需要注意的是，这里所使用的术语仅是为了描述具体实施方式，而非意图限制根据本申请的示例性实施方式。如在这里所使用的，除非上下文另外明确指出，否则单数形式也意图包括复数形式，此外，还应当理解的是，当在本说明书中使用术语“包含”和/或“包括”时，其指明存在特征、步骤、工作、器件、组件和/或它们的组合。
需要说明的是，本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施方式能够以除了在这里图示或描述的那些以外的顺序实施。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (15)

  1. 一种模块电源的引脚结构，其特征在于，包括：
    塑胶体(10)，所述塑胶体(10)具有容纳区域；
    金属引脚(20)，所述金属引脚(20)与所述塑胶体(10)一体成型连接，并位于所述容纳区域处，所述金属引脚(20)的第一表面(21)与所述塑胶体(10)贴合，所述金属引脚(20)的与所述第一表面(21)相对的第二表面(22)外露于所述塑胶体(10)；
    互锁结构，所述互锁结构包括凸起(31)和凹部(32)，所述凸起(31)和所述凹部(32)中的一者位于所述塑胶体(10)上，另一者位于所述金属引脚(20)上，所述凸起(31)伸入至所述凹部(32)内形成互锁，并阻碍所述金属引脚(20)脱出所述塑胶体(10)。
  2. 根据权利要求1所述的模块电源的引脚结构，其特征在于，所述金属引脚(20)具有所述凸起(31)，所述凸起(31)位于所述金属引脚(20)的周侧边缘处，并沿所述第一表面(21)延伸，所述凸起(31)的厚度小于所述金属引脚(20)的厚度，所述塑胶体(10)具有所述凹部(32)，所述凸起(31)沿所述金属引脚(20)的周侧连续设置，或所述凸起(31)为多个，并沿所述金属引脚(20)的周侧间隔设置。
  3. 根据权利要求2所述的模块电源的引脚结构，其特征在于，所述凸起(31)的厚度与所述金属引脚(20)的厚度之间的差值≥0.4mm。
  4. 根据权利要求2所述的模块电源的引脚结构，其特征在于，所述金属引脚(20)具有通孔(23)，所述塑胶体(10)的一部分位于所述通孔(23)内。
  5. 根据权利要求2所述的模块电源的引脚结构，其特征在于，所述金属引脚(20)包括贴合部(25)和连接部(26)，所述连接部(26)的至少一部分和所述贴合部(25)均设置在所述容纳区域内，所述贴合部(25)的表面和所述连接部(26)的一部分表面作为所述第一表面(21)。
  6. 根据权利要求1所述的模块电源的引脚结构，其特征在于，所述金属引脚(20)的一部分向靠近所述塑胶体(10)中心的方向弯折突出，所述金属引 脚(20)的弯折突出处远离所述塑胶体(10)中心的一侧作为所述凹部(32)，所述塑胶体(10)上具有所述凸起(31)。
  7. 根据权利要求6所述的模块电源的引脚结构，其特征在于，所述凹部(32)位于所述第二表面(22)上，所述凹部(32)和所述凸起(31)均沿所述金属引脚(20)的宽度方向延伸，且所述凸起(31)与所述容纳区域相对的两侧连接。
  8. 根据权利要求6所述的模块电源的引脚结构，其特征在于，所述金属引脚(20)的突出处设置有过孔(24)，所述凸起(31)的一部分位于所述过孔(24)内，并与所述容纳区域朝向所述第一表面(21)的侧面连接。
  9. 根据权利要求6所述的模块电源的引脚结构，其特征在于，所述金属引脚(20)包括顺次弯折的第一段和第二段，所述第二段向靠近所述塑胶体(10)中心的方向弯折，所述第一段具有所述第一表面(21)和所述第二表面(22)，所述第二段的两个表面均与所述塑胶体(10)接触，所述第二段远离所述塑胶体(10)中心的一侧作为所述凹部(32)。
  10. 根据权利要求6所述的模块电源的引脚结构，其特征在于，所述塑胶体(10)上与所述金属引脚(20)的弯折突出处对应的位置处的厚度≥0.40mm。
  11. 根据权利要求1所述的模块电源的引脚结构，其特征在于，所述金属引脚(20)具有所述凸起(31)，所述凸起(31)位于所述第一表面(21)上，并向所述塑胶体(10)突出，所述塑胶体(10)具有所述凹部(32)，所述凸起(31)与所述金属引脚(20)一体设置，或者所述凸起(31)与所述金属引脚(20)分体加工并连接在一起。
  12. 根据权利要求11所述的模块电源的引脚结构，其特征在于，
    所述凸起(31)靠近所述第一表面(21)的一端的大小小于远离所述第一表面(21)的一端的大小；和/或
    所述凸起(31)呈弯折状，并钩接在所述凹部(32)内。
  13. 根据权利要求11所述的模块电源的引脚结构，其特征在于，所述凸起(31)具有连接孔(311)，所述连接孔(311)的轴线与所述第一表面(21)不垂直设置，所述塑胶体(10)的一部分位于所述连接孔(311)内。
  14. 根据权利要求1所述的模块电源的引脚结构，其特征在于，所述金属引脚(20)开设有对接孔，所述对接孔作为所述凹部(32)，并且沿靠近所述塑胶体(10)的方向，所述对接孔的直径逐渐缩小，所述塑胶体(10)具有所述凸起(31)。
  15. 一种模块电源，其特征在于，包括产品本体(40)和多个权利要求1至14中任一项所述的引脚结构，所述产品本体(40)相对的两侧均设置有所述引脚结构。
PCT/CN2022/122038 2021-11-30 2022-09-28 模块电源的引脚结构和模块电源 WO2023098266A1 (zh)

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