Fixing assembly and switching element comprising same

Abstract

A fixing assembly according to an embodiment of the present invention comprises: a heat dissipation member including a base on which a switching element is disposed on one surface of the heat dissipation member, and a plurality of heat dissipation fins protruding from the base on the other surface of the heat dissipation member; and a fixing member that is inserted from one side to the other side of the heat dissipation member to fix the switching element and the heat dissipation member to each other, in which the fixing member has a clip shape that presses the switching element toward the heat dissipation member.

Description

Technical Field

[0001] The present invention relates to a fixing component and a switching element including the fixing component. Background Technology

[0002] Various electronic components that make up an electronic product are mounted on a printed circuit board on which circuit patterns are printed. These electronic components are equipped with switching elements for applying power to other electronic components. Furthermore, the switching elements are fixed by mounting components.

[0003] Switching elements must be stably mounted to the substrate for signal transmission and electrical connection. Furthermore, switching elements are electronic components that generate heat and require mounting via a structure with high heat dissipation efficiency. Summary of the Invention

[0004] Technical topics

[0005] The technical problem to be solved by the present invention is to provide a fixing component and a switching element including the fixing component.

[0006] Technical solutions

[0007] To solve the above technical problems, the fixing component according to an embodiment of the present invention includes: a heat dissipation member having a base on one surface on which a switching element is disposed, and a plurality of heat dissipation fins protruding from the base on another surface of the heat dissipation member; and a fixing member being inserted from one side of the heat dissipation member to the other side to fix the switching element and the heat dissipation member to each other, wherein the fixing member has a clip shape for pressing the switching element toward the heat dissipation member.

[0008] An insulating layer may be provided between the switching element and the heat dissipation component, and an insulating component provided on the other side of the heat dissipation component may also be included.

[0009] The base of the heat dissipation component includes an outwardly protruding first step and a second step, and an insulating layer may be disposed between the first step and the second step.

[0010] The fixing member includes a first region in which a first hole is formed, the heat dissipation member has a second hole formed at a position corresponding to the first hole of the fixing member, and a screw passing through the first hole and the second hole can be installed.

[0011] The heat dissipation component may include two protrusions that project in one direction from a first surface of a first region on which a fixing component is disposed, and a groove formed between the two protrusions.

[0012] The first region of the fixing member may include a first portion having a first length, a second portion having a second length less than the first length, and a snap-fit ​​portion that contacts a surface of two protruding portions between the first portion and the second portion.

[0013] The second length of the second part can be formed as a groove corresponding to the heat dissipation component.

[0014] The fixing member may include a first region in which a first hole is formed, a second region extending from the first region in a direction toward the heat dissipation fins, a third region extending from the second region and bending, a fourth region extending from the first region and bending in a direction toward the base, a fifth region extending from the fourth region, and a sixth region extending from the fifth region.

[0015] At least a portion of the fifth and sixth regions of the fixed member can contact the switching element.

[0016] The second region of the fixing member may include a hole shape.

[0017] Beneficial effects

[0018] According to this embodiment, the switching element can be stably fixed on the substrate, and heat dissipation can be enhanced. Furthermore, the structure of inserting and fixing from one direction ensures ease of assembly. Attached Figure Description

[0019] Figure 1 This is a perspective view of the fixing component according to this embodiment.

[0020] Figure 2 This is an exploded perspective view of the fixing component according to this embodiment.

[0021] Figure 3 This is a perspective view of the heat dissipation component and the fixing component of the fixing assembly according to this embodiment.

[0022] Figure 4 This is a top view of the fixing component according to this embodiment.

[0023] Figure 5 This is a side view of the fixing component according to this embodiment. Detailed Implementation

[0024] Preferred embodiments of the invention will be described in detail below with reference to the accompanying drawings.

[0025] However, the technical concept of the present invention is not limited to the embodiments to be described, but can be implemented in various forms, and within the scope of the technical concept of the present invention, one or more of the constituent elements can be selectively combined or replaced among the embodiments.

[0026] Furthermore, unless explicitly defined and described, the terms (including technical and scientific terms) used in the embodiments of this invention may be interpreted in the sense that can be commonly understood by those skilled in the art, and common terms, such as those defined in dictionaries, may be interpreted in the context of the relevant art.

[0027] Furthermore, the terminology used in this specification is for the purpose of describing embodiments and is not intended to limit the invention. In this specification, unless specifically stated in the phrase, the singular form may include the plural form, and when described as “at least one (or more than one) of A, B, and C,” it may include one or more of all combinations that can be combined with A, B, and C.

[0028] In addition, when describing the components of embodiments of the present invention, terms such as first, second, A, B, (a) and (b) may be used.

[0029] These terms are intended only to distinguish components from other components, and they do not restrict the nature, order, or sequence of components.

[0030] Furthermore, when a component is described as being “connected,” “coupled,” or “interconnected” to another component, the component is not only directly connected, coupled, or interconnected to another component, but may also include cases where the component is “connected,” “coupled,” or “interconnected” due to another component between other components.

[0031] Additionally, when described as being formed or positioned "above" or "below" each component, "above" or "below" means not only that the two components are in direct contact, but also that one or more other components are formed or positioned between the two components. Furthermore, when expressed as "above" or "below," it can include the meaning of both upward and downward directions relative to a component.

[0032] Figure 1 This is a perspective view of the fixing component according to this embodiment; Figure 2 This is an exploded perspective view of the fixing component according to this embodiment; Figure 3 This is a perspective view of the heat dissipation component and the fixing component of the fixing assembly according to this embodiment; Figure 4 This is a top view of the fixing component according to this embodiment; and Figure 5 This is a side view of the fixing component according to this embodiment.

[0033] The fixing assembly according to this embodiment may include a heat dissipation member 20 and a fixing member 40, and may include an insulating layer 30 and an insulating member 50. The fixing assembly may be referred to as a bracket.

[0034] The heat dissipation component 20 may include a base 21, on one surface of which a switching element 10 is disposed. An insulating layer 30 may be disposed on one surface of the base 21. The switching element 10 may be disposed on one surface of the base 21. An insulating layer 30 may be disposed between the base 21 and the switching element 10. The insulating layer 30 may be formed in the form of a sheet.

[0035] Multiple heat dissipation fins 22 may be formed to protrude from another surface of the heat dissipation member 20. The heat dissipation member 20 may include multiple heat dissipation fins 22 protruding from the base 21. The heat dissipation fins 22 may include multiple heat dissipation fins 22 spaced apart from each other. The multiple heat dissipation fins 22 may be formed parallel to each other. Recessed portions may be formed between the multiple heat dissipation fins 22. As the contact area between the multiple heat dissipation fins 22 and the air increases, the heat generated from the switching element 10 can be dissipated. The heat dissipation member 20 may be referred to as a heat sink.

[0036] Steps can be formed on one and the other side of the base 21. The base 21 may include a first step 26 and a second step 27 projecting outwards. An insulating layer 30 may be disposed between the first step 26 and the second step 27. The position of the insulating layer 30 may be supported by the steps formed on the base 21. The insulating layer 30 may be disposed between the switching element 10 and the heat dissipation member 20 to perform an insulating function. The insulating layer 30 may be made of ceramic material. The insulating layer 30 may be referred to as an insulating plate.

[0037] The heat dissipation member 20 may include a first surface on which a first region 42 of the fixing member 40 is disposed. Holes 25 may be formed on the upper surface of the heat dissipation member 20. Screws S may be inserted into and coupled into the holes 25. The holes 25 of the heat dissipation member 20 may correspond to the holes 41 of the fixing member 40. The holes 25 of the heat dissipation member 20 and the holes 41 of the fixing member 40 are arranged to overlap each other, and screws S can be coupled through each hole. The holes 25 of the heat dissipation member 20 may be referred to as the first hole, and the holes 41 of the fixing member 40 may be referred to as the second hole.

[0038] The upper surface of the heat dissipation member 20 may include an upwardly projecting protrusion 23. The protrusion 23 may be formed to project upwards from two side surfaces. The protrusion 23 may include two protrusions 23 spaced apart from each other. A groove in which the fixing member 40 is disposed may be included between the two protrusions 23. The protrusion 23 may serve as a stop for the fixing member 40.

[0039] The other side of the heat dissipation component 20 may include a lead 24 inserted into and fixed to the substrate 100. The lead 24 may be formed to extend downwards by being coupled to a side surface of the heat dissipation component 20. The lead 24 may be formed as… "shape.

[0040] The switching element 10 may be a FET element or a diode element. The switching element 10 may include a body and a plurality of pins extending from the body and connected to the substrate 100. An insulating member 50 may be disposed on the lower surface of the body of the switching element 10.

[0041] An insulating member 50 may be provided between the switching element 10 and the substrate 100. The insulating member 50 may be provided between the switching element 10 and the substrate 100 to perform an insulating function. The insulating member 50 may be made of silicone resin or rubber. The insulating member 50 may be provided on the other side of the heat dissipation member 20. The insulating member 50 may be provided between the substrate 100 and the base 21. The insulating member 50 may be provided between the base 21 and the lead 24. The insulating member 50 may be used to support the base 21 mounted on the substrate 100.

[0042] The fixing member 40 can be formed in the shape of a clip. The fixing member 40 can have a clip shape that presses the switching element 10 toward the heat sink 20. The fixing member 40 can be formed to surround the base 21, heat sink fins 22, and a first surface 28 connecting the base 21 and the heat sink fins 22 of the heat sink 20. The fixing member 40 can be inserted from one side of the heat sink 20 to the other side to fix the switching element 10 and the heat sink 20.

[0043] The fixing member 40 may include a first region 42 in which a hole 41 is formed. The first region 42 may be disposed on the upper surface of the heat dissipation member 20. The first region 42 of the fixing member 40 may include a first portion 42-1 having a first length L1, a second portion 42-2 having a second length L2 less than the first length L1, and a snap-fit ​​portion 42-3 that contacts a surface of two protrusions 23 between the first portion 42-1 and the second portion 42-2. Thus, the fixing member 40 can be fixed to the heat dissipation member 20.

[0044] The fixing member 40 may include a second region 43 extending from the first region 42 toward the heat sink fins 22, and a third region 44 extending from and bending from the second region 43. The fixing member 40 may include a fourth region 45 extending from the first region 42 toward the base 21, a fifth region 46 extending from the fourth region 45, and a sixth region 47 extending from the fifth region 46. The first region 42 to the sixth region 47 are used to conveniently refer to a fixing member 40, and the fixing member 40 may include additional regions in addition to the first region 42 to the sixth region 47, and any one of the first region 42 to the sixth region 47 may be omitted. The second region 43 and the third region 44 of the fixing member 40 may face the heat sink fins 22, and the fourth to sixth regions 45, 46 and 47 may face the switching element 10 or the base 21.

[0045] The second region 43 of the fixing member 40 may extend vertically relative to the first region 42. The second region 43 may include a hole shape. The hole shape of the second region 43 allows the heat dissipation fins 22 to be exposed to the outside, thereby improving heat dissipation efficiency.

[0046] At least a portion of the second region 43 and the third region 44 of the fixing member 40 may contact the heat dissipation fins 22. Alternatively, the second region 43 and the third region 44 of the fixing member 40 may not contact the heat dissipation fins 22. The second region 43 and the third region 44 of the fixing member 40 may be formed with obtuse angles. This allows the fixing member 40 to function as a guide when inserted while surrounding the outer surface of the heat dissipation member 20, thereby facilitating assembly.

[0047] The fourth region 45 of the fixing member 40 can be formed as a curved surface. The fourth region 45 can be formed into a curved shape. The fifth region 46 of the fixing member 40 can extend from the fourth region 45 and contact the switching element 10. The sixth region 47 of the fixing member 40 can be formed at an obtuse angle to the fifth region 46. Thus, when the fixing member 40 is inserted while surrounding the outer surface of the heat dissipation member 20, the fixing member 40 can serve as a guide and facilitate assembly.

[0048] At least a portion of the fifth region 46 and the sixth region 47 of the fixing member 40 may contact the switching element 10. The fifth region 46 and the sixth region 47 of the fixing member 40 may have a region d that overlaps with the switching element 10. The fixing member 40 may stably fix the switching element 10 via the region d that overlaps with the switching element 10 through a seesaw effect.

[0049] Reference Figure 5The diagram shows a side view of a fixing component according to an embodiment of the present invention. Lines connecting the boundary points of the second region 43 and the third region 44 of the fixing member 40 to the boundary points of the fifth region 46 and the sixth region 47 can be formed on dashed lines. The length H1 from the first region 42 to the second region 43 of the fixing member 40 can be formed as half the length H2 from the first region 42 to the substrate 100. The length H1 from the first region 42 to the boundary points of the fifth region 46 and the sixth region 47 of the fixing member 40 can also be formed as half the length H2 from the first region 42 to the substrate 100. Therefore, the fixing member can more stably fix the switching element and the heat dissipation component.

[0050] Those skilled in the art who relate this embodiment will understand that the above description can be implemented in modified forms without departing from its essential characteristics. Therefore, the disclosed methods should be considered illustratively rather than restrictively. The scope of the invention is indicated by the claims rather than the foregoing description, and all differences within the scope of equivalents should be interpreted as included within the invention.

Claims

1. A fixing component, comprising: A heat dissipation component, wherein a base on one surface of the heat dissipation component is provided thereon on the base, and a plurality of heat dissipation fins protruding from the base are included on the other surface of the heat dissipation component. as well as A fixing member is inserted from one side of the heat dissipation member to the other side to secure the switching element and the heat dissipation member to each other. The fixing member has a clip shape that presses the switching element toward the heat dissipation member.

2. The fixing component according to claim 1, in, An insulating layer is provided between the switching element and the heat dissipation component, and This includes an insulating member disposed on the other side of the heat dissipation member.

3. The fixing component according to claim 2, in, The base of the heat dissipation component includes an outwardly protruding first step and a second step, and The insulating layer is disposed between the first step and the second step.

4. The fixing component according to claim 1, in, The fixing member includes a first region in which a first hole is formed. The heat dissipation component has a second hole formed at a position corresponding to the first hole of the fixing component, and The device includes a screw that passes through both the first hole and the second hole.

5. The fixing component according to claim 4, in, The heat dissipation component includes two protruding portions and a groove formed between the two protruding portions, the two protruding portions protruding in one direction from a first surface of the first region on which the fixing component is disposed.

6. The fixing component according to claim 5, in, The first region of the fixing member includes a first portion having a first length, a second portion having a second length less than the first length, and a snap-fit ​​portion between the first portion and the second portion that contacts one surface of the two protruding portions.

7. The fixing component according to claim 6, in, The second length of the second portion is formed as a groove corresponding to the heat dissipation member.

8. The fixing component according to claim 1, in, The fixing member includes a first region in which a first hole is formed, a second region extending from the first region in a direction toward the heat dissipation fins, a third region extending from the second region and bending, a fourth region extending from the first region and bending in a direction toward the base, a fifth region extending from the fourth region, and a sixth region extending from the fifth region.

9. The fixing component according to claim 8, in, At least a portion of the fifth and sixth regions of the fixing member is in contact with the switching element.

10. The fixing component according to claim 8, in, The second region of the fixing member includes a hole shape.

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