Press fitting structure, integrated circuit board and electrical equipment

Abstract

The utility model relates to a press-fitting structure, an integrated circuit board and electrical equipment, the press-fitting structure comprises a pressing plate, the pressing plate is provided with a containing cavity, the containing cavity is provided with an opening, the pressing plate is provided with a first end wall and a second end wall which are opposite to each other, and the side, away from the second end wall, of the first end wall is used for installing a part to be pressed; and the elastic piece is arranged in the accommodating cavity through the opening, and is used for elastically pressing the first end wall to enable the piece to be pressed to be attached to the heat dissipation element after the pressing plate is mounted to the heat dissipation element. According to the technical scheme, the to-be-pressed part is pressed to the heat dissipation element through the integrally-formed pressing plate structure, the opening is formed in the internal containing cavity so that the elastic part can be conveniently placed in, the elastic part can generate the deformation trend so that the to-be-pressed part can be attached to the heat dissipation element and further can be pressed, and it is guaranteed that the to-be-pressed part can be fully cooled.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of semiconductor device, in particular, to a press-fitting structure, an integrated circuit board and an electrical device. BACKGROUND

[0002] When electronic components are mounted on a printed circuit board (PCB), they are often fixed by other structures, which can press the electronic components (such as transistors) to be press-fitted onto a heat dissipation device to dissipate heat. Since the heat generated by electronic components during use is usually large, the heat dissipation performance of the solid structure is also relatively strict. In the related art, the fixing structure cannot make the electronic components fully contact with the heat dissipation device, which causes poor heat dissipation of the electronic components, and the heat resistance of the fixing structure itself is poor, which is difficult to provide stable positioning support for the electronic components for a long time. SUMMARY

[0003] The purpose of the present disclosure is to provide a press-fitting structure of a component to be press-fitted, an integrated circuit board and an electrical device, to at least partially solve the problems in the related art.

[0004] To achieve the above purpose, the first aspect of the present disclosure provides a press-fitting structure, comprising: a press plate, having an accommodating cavity, the accommodating cavity having an opening, the press plate being provided with opposite first and second end walls, the side of the first end wall away from the second end wall being used to mount a component to be press-fitted; and an elastic member, disposed in the accommodating cavity via the opening, used to press the component to be press-fitted against a heat dissipation element by elastically pressing the first end wall after the press plate is mounted to the heat dissipation element.

[0005] Optionally, the press plate is an integral piece.

[0006] Optionally, the elastic member is in the shape of a sheet, and the opening is formed on one side of the accommodating cavity, wherein the elastic member is configured to be inserted into the accommodating cavity through the opening.

[0007] Optionally, the elastic member comprises: a first section; and a second section disposed on both sides of the first section, wherein the second section is angled from the first section and extends towards the first end wall, so that when the first section is attached to the inner side of the first end wall, the second section is elastically deformed to have an elastic pressing force towards the first end wall.

[0008] Optionally, the heat dissipation element is configured to be connected with a threaded connector having a head and a shank, the first section is provided with a through hole capable of being penetrated by the shank, the first end wall and the second end wall are respectively provided with a hole portion avoiding the threaded connector, so that when the shank penetrates through the pressing plate to be connected with the heat dissipation element, the head abuts the first section to the inner side of the first end wall.

[0009] Optionally, the second end wall is provided with a first clamping elastic arm extending along the insertion direction of the elastic sheet, and the free end of the first clamping elastic arm is located at the opening, and the free end of the first clamping elastic arm is provided with a clamping structure to limit the elastic piece in the accommodating cavity.

[0010] Optionally, the outer side of the first end wall is provided with a groove for accommodating the to-be-pressed component, and at least one groove wall of the groove is provided with a limiting structure to position the to-be-pressed component in the groove.

[0011] Optionally, the second clamping elastic arm extends from the second end wall to the first end wall and forms a groove wall of the groove, wherein the free end of the second clamping elastic arm has a clamping structure to form the limiting structure.

[0012] Optionally, the groove is provided with a protrusion at the groove bottom for abutting against the to-be-pressed component.

[0013] Optionally, the surface of the protrusion is an arc surface.

[0014] Optionally, the number of the grooves is two, and the two grooves are spaced apart by a partition portion on the first end wall.

[0015] Optionally, the partition portion is provided with a notch corresponding to the opening, and the notch is in communication with the opening.

[0016] Optionally, the second end wall is provided with a positioning portion for connecting to an electrical connector, and the electrical connector is electrically connected with the to-be-pressed component.

[0017] Optionally, the electrical connector is a PCB, and the positioning portion comprises a positioning column protruding from the second end wall for penetrating the PCB, and two third clamping elastic arms disposed on both sides of the positioning column with the positioning column as the center for positioning the PCB to the second end wall when the positioning column penetrates the PCB.

[0018] The second aspect of the present disclosure provides an integrated circuit board, comprising: a to-be-pressed component; a heat dissipation element; a threaded connector; an electrical connector; and a pressing structure for the to-be-pressed component according to the first aspect of the present disclosure.

[0019] The third aspect of the present disclosure provides an electrical device comprising the integrated circuit board according to the second aspect of the present disclosure.

[0020] Through the above technical solution, the to-be-press-fitted part is press-fitted to the heat dissipation element through a press plate structure, the accommodating cavity in the press plate is provided with an opening to facilitate the placement of the elastic part, the elastic part can have a deformation trend in the direction of the heat dissipation element to press the to-be-press-fitted part and the heat dissipation element against each other through the press plate and further be able to be pressed tightly, thereby ensuring that the to-be-press-fitted part has sufficient heat dissipation effect.

[0021] Other features and advantages of the present disclosure will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, and are used together with the following specific embodiments to explain the present disclosure, but do not constitute a limitation on the present disclosure. In the drawings:

[0023] Figure 1 is a schematic view of a press-fitting structure for a to-be-press-fitted part according to an exemplary embodiment.

[0024] Figure 2 is a sectional view of a press-fitting structure for a to-be-press-fitted part according to an exemplary embodiment.

[0025] Figure 3 is a sectional view of a fixing device for a to-be-press-fitted part according to an exemplary embodiment.

[0026] Figure 4 is a schematic view of a press-fitting structure for a to-be-press-fitted part according to an exemplary embodiment.

[0027] Figure 5 is a top view of a press-fitting structure for a to-be-press-fitted part according to an exemplary embodiment.

[0028] Figure 6 is a connection relationship block diagram of an integrated circuit board according to an exemplary embodiment.

[0029] BRIEF DESCRIPTION OF DRAWINGS

[0030] 1-pressing plate, 10-housing cavity, 100-opening, 101-first locking elastic arm, 102-notch, 11-first end wall, 111-groove, 1111-second locking elastic arm, 1112-protrusion, 112-division, 113-first through hole, 12-second end wall, 121-positioning part, 1211-positioning column, 1212-third locking elastic arm, 122-second through hole, 2-elastic member, 21-first section, 211-through hole, 22-second section, 1000-pressing structure, 2000-pressing part, 3000-heat dissipation element, 4000-threaded connecting part, 4001-head, 4002-shaft, 5000-electric connecting part. DETAILED DESCRIPTION

[0031] The specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0032] In the present disclosure, the orientation words such as "up, down, top, bottom" are based on the up and down, top and bottom of the relevant structure in actual use, and the "inner, outer" refers to the inner and outer of the relevant parts relative to their own profile in actual use. In addition, the adjectives "first", "second" and the like used in the present disclosure are used to distinguish one element from another element, and do not have sequential and important meanings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. Figure 2 and Figure 3 , the up and down of the drawing surface in the height direction is the up and down of the pressing plate structure, and the "inner, outer" refers to the inner and outer of the relevant parts relative to their own profile in actual use. In addition, the adjectives "first", "second" and the like used in the present disclosure are used to distinguish one element from another element, and do not have sequential and important meanings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated.

[0033] The first aspect of the embodiments of the present disclosure provides a pressing structure 1000 for a pressing part, with reference to Figures 1 to 5 The pressing structure 1000 includes a pressing plate 1 and an elastic member 2. The pressing plate 1 can be provided with a housing cavity 10, the housing cavity 10 has an opening 100 and can be provided with opposite first and second end walls 11 and 12 on the pressing plate 1, the side of the first end wall 11 away from the second end wall 12 can be used to install the pressing part 2000, and the elastic member 2 can be arranged in the housing cavity 10 through the opening 100 of the pressing plate 1, so that after the pressing plate 1 is installed on the heat dissipation element 3000, the first end wall 11 can be elastically pressed to press the pressing part 2000 onto the heat dissipation element 3000.

[0034] In the above embodiment, the accommodating cavity 10 is located inside the pressing plate 1, the opening 100 of the accommodating cavity 10 is located on one side wall of the pressing plate 1, the elastic member 2 can be placed into the inside of the accommodating cavity 10 through the opening 100, the upper and lower end walls of the pressing plate 1 can be divided into the first end wall 11 and the second end wall 12 with the accommodating cavity 10 as the center, the lower end wall of the pressing plate 1 for mounting the to-be-pressed member 2000 can be defined as the first end wall 11, the upper end face of the pressing plate 1 for positioning the electric connecting member 5000 can be defined as the second end wall 12, and the heat dissipation element 3000 is arranged on the side of the pressing plate 1 where the to-be-pressed member 2000 is mounted. Wherein, a relatively tight connection can be formed between the elastic member 2 and the heat dissipation element 3000, when the elastic member 2 is connected to the heat dissipation element 3000, the elastic member 2 can have a deformation trend towards the heat dissipation element 3000, and gradually extrudes the bottom wall of the accommodating cavity 10 in the process of deformation, the pressing plate 1 can gradually press the to-be-pressed member 2000 to the heat dissipation element 3000 under the action of the extrusion force, so that the to-be-pressed member 2000 can be in full contact with the heat dissipation element 3000, and the heat dissipation effect of the to-be-pressed member 2000 is improved.

[0035] Through the above technical solution, the to-be-pressed member 2000 is pressed to the heat dissipation element 3000 through a pressing plate 1 structure, the accommodating cavity 10 inside the pressing plate 1 is provided with an opening 100 for conveniently placing the elastic member 2, the elastic member 2 can have a deformation trend towards the heat dissipation element 3000 to press the to-be-pressed member 2000 and the heat dissipation element 3000 through the pressing plate 1, and further can be pressed tightly, so that the to-be-pressed member 2000 can obtain sufficient heat dissipation effect.

[0036] The pressing plate 1 can be an integral molding, the elastic member 2 can be directly placed into the accommodating cavity 10 inside the pressing plate 1, the assembly process is reduced, and the assembly efficiency of the whole pressing structure is improved.

[0037] In some embodiments, referring to Figures 1 to 5 , the elastic member 2 can be a sheet structure, the opening 100 can be laterally formed in the accommodating cavity 10, wherein the elastic member 2 can be configured to be inserted into the accommodating cavity 10 through the opening 100. In this embodiment, the opening 100 of the accommodating cavity 10 can be laterally formed on one side wall of the pressing plate 1 to form a lateral opening. The sheet-shaped elastic member 2 can be directly inserted into the inside of the accommodating cavity 10 from the outside through the lateral opening 100, and can also be directly taken out from the inside of the accommodating cavity 10 through the lateral opening 100 after the elastic member 2 is elastically failed or damaged, so that the installation is simple and convenient, the maintenance process of the pressing plate 1 is simplified, and the disassembly and assembly efficiency of the pressing plate 1 is improved.

[0038] It should be noted that the to-be-press-fitted part 2000 can be a common integrated electronic component, such as a transistor, which generates a large amount of heat during operation and dissipates heat through the heat dissipation element 3000 when not in operation. The pressing plate 1 in direct contact with the to-be-press-fitted part 2000 will long-term cyclically withstand thermal expansion and contraction changes. After studying the pressing plate 1 of the prior art, the applicant of the present disclosure found that the pressing plate structure in the prior art is mostly composed of two or more mutually engaged injection molded parts (such as a shell and a cover) and an embedded metal spring piece. There are gaps between the multiple injection molded parts, which are easy to expand and damage the original pressing plate structure under long-term repeated thermal expansion and contraction, resulting in a decrease in the strength of the pressing plate structure, a decrease in stability, and a decrease in service life. To this end, the pressing plate 1 in the embodiment of the present disclosure can be integrally formed, and no gap is generated at the connection between each element. Compared with the combined pressing plate structure, the deformation of the engaged part caused by thermal expansion and contraction can be reduced, thereby increasing the service life of the pressing plate 1, ensuring the structural stability of each element relying on the pressing plate 1, and also maintaining the shape integrity of the opening 100 by using the structural rigidity after integral forming, which is beneficial to the disassembly and assembly operation of the elastic member 2 in the accommodating cavity 10 through the opening 100.

[0039] It can be understood that the specific type of the to-be-press-fitted part 2000 is not limited in the present application. The transistor listed in the present application is a common electronic integrated component in the art, which is convenient for technicians in the art to understand the application type of the to-be-press-fitted part 2000. Technicians in the art can still select other types of electronic integrated components as the to-be-press-fitted part 2000 according to the present application, and no matter what type of electronic integrated component is selected by technicians in the art, it is within the protection scope of the present application.

[0040] For example, referring to Figure 2 and Figure 3 , the elastic member 2 can include a first section 21 and a second section 22, and the second section 22 can be arranged on both sides of the first section 21. The second section 22 can be at an angle with the first section 21 and extend towards the first end wall 11, so that the first section 21 can cause the second section 22 to be elastically deformed when abutting against the inner side of the first end wall 11, thereby having an elastic pressing force towards the first end wall 11.

[0041] In the above embodiment, the elastic member 2 is of a multi-section structure, the first section 21 can be a flat section for bearing the external compression force, the second section 22 is at an angle with the first section 21, which means that the second section 22 is at least not in the extension plane of the first section 21, and the connection between the two forms a certain deflection angle, at the same time, the second section 22 can extend from the opposite sides of the first section 21 respectively towards the first end wall 11, so that when the first section 21 bears the compression force, the two edges of the second section 22 can abut against the bottom wall of the accommodating cavity 10 and provide elastic pressing force against the bottom wall of the accommodating cavity 10. In the process of gradually increasing the external compression force on the first section 21, the connection between the first section 21 and the second section 22 elastically deforms, the deflection angle between the two increases and gradually approaches to be horizontal, and the first section 21 and the second section 22 can tend to form a flat surface. When the first section 21 and the second section 22 are placed in the same plane, the first section 21 can be attached to the bottom wall of the accommodating cavity 10 (i.e. the inner side surface of the first end wall 11), at this time, the compression force from the outside can be transmitted to the inner side surface of the first end wall 11 through the first section 21, and then act on the entire pressing plate 1, so that the pressing plate 1 can gradually abut and compress the to-be-pressed component 2000 between the to-be-pressed component 2000 in the direction of the heat dissipation element 3000 and the heat dissipation element 3000, and the to-be-pressed component 2000 can be in full contact with the heat dissipation element 3000 to obtain better heat dissipation effect.

[0042] For example, with reference to Figures 1 to 6 , the heat dissipation element 3000 can be used to connect with a threaded connecting piece 4000 having a head portion 4001 and a rod portion 4002, wherein the first section 21 can be provided with a through hole 211 capable of being penetrated by the rod portion 4002, and the first end wall 11 and the second end wall 12 can be respectively provided with a hole portion for avoiding the threaded connecting piece 4000, so that when the rod portion 4002 penetrates the pressing plate 1 to connect with the heat dissipation element 3000, the head portion 4001 can abut the first section 21 to the inner side surface of the first end wall 11. According to different shapes of the first end wall 11 and the second end wall 12, the above-mentioned hole portion can have different configurations adaptively, which will be described in detail below.

[0043] In the above embodiment, the first section 21 of the elastic member 2 is provided with a through hole 211, the rod portion 4002 of the threaded connecting member 4000 has a diameter smaller than that of the through hole 211, the end of the rod portion 4002 can pass through the through hole 211 and be connected to the heat dissipation element 3000, and the head portion 4001 of the threaded connecting member 4000 has a diameter larger than that of the through hole 211 and abuts against the upper surface of the first section 21. When the threaded connecting member 4000 is gradually screwed onto the heat dissipation element 3000, the pressing force of the head portion 4001 against the first section 21 gradually increases, which can cause the elastic member 2 to elastically deform and press the pressing plate 1 against the heat dissipation element 3000 through the elastic member 2, so that the to-be-pressed component 2000 between the heat dissipation element 3000 and the pressing plate 1 can be pressed against the heat dissipation element 3000 to form sufficient contact.

[0044] For example, with reference to Figures 1 to 5 The second end wall 12 can be provided with a first clamping elastic arm 101, which extends in the insertion direction of the elastic sheet 2 and has a free end located at the opening 100. The free end of the first clamping elastic arm 101 can have a buckle structure to limit the elastic member 2 in the accommodation cavity 10. In this embodiment, the first clamping elastic arm 101 can be used to limit the displacement of the elastic member 2 in the direction of the opening 100 of the accommodation cavity 10. The free end of the first clamping elastic arm 101 can have a protrusion extending towards the inside of the accommodation cavity 10. The elastic member 2 can be placed in the protrusion of the first clamping elastic arm 101 to prevent the elastic member 2 from sliding out of the accommodation cavity 10 from the opening 100 of the accommodation cavity 10 after being inserted into the accommodation cavity 10, thereby ensuring the stable placement of the elastic member 2.

[0045] It should be noted that the protrusion of the first clamping elastic arm 101 can be a clamping joint at the end, which can have a guide slope. During the insertion of the elastic member 2 into the accommodation cavity 10, the elastic member 2 can slide on the guide slope and press the end of the first clamping elastic arm 101 to elastically deform away from the accommodation cavity 10. After the elastic member 2 slides past the clamping joint with the guide slope, the first clamping elastic arm 101 can be reset and clamp the side of the elastic member 2 through the vertical surface of the clamping joint connected to the guide slope, thereby forming a limiting effect to prevent the elastic member 2 from escaping from the opening 100 of the accommodation cavity 10.

[0046] In some embodiments, with reference to Figures 1 to 5The side of the first end wall 11 facing away from the second end wall 12 can be provided with a groove 111 for accommodating the to-be-pressed part 2000, and at least one groove wall of the groove 111 can be provided with a limiting structure for positioning the to-be-pressed part 2000 in the groove 111. In this embodiment, the outer side of the first end wall 11 of the pressing plate 1 is formed with a groove 111 having an opening facing the direction of the heat dissipation element 3000, the to-be-pressed part 2000 can be installed in the groove 111, and at least one groove wall of the groove 111 can be formed as a limiting structure having a protrusion extending towards the inside of the groove 111. After the to-be-pressed part 2000 is installed in the groove 111, the protrusion can limit the displacement of the to-be-pressed part 2000 from the groove 111, so that the to-be-pressed part 2000 can be stably arranged in the groove 111 and prevented from being separated from the groove 111.

[0047] For example, with reference to Figures 1 to 5 The second locking elastic arm 1111 can extend from the second end wall 12 to the first end wall 11 and form a groove wall of the groove 111, wherein the free end of the second locking elastic arm 1111 has a buckle structure to form a limiting structure. In this embodiment, the second locking elastic arm 1111 can be integrally formed with the side wall of the pressing plate 1 between the first end wall 11 and the second end wall 12. Two through grooves are engraved on the side wall to form an elastic arm structure having one end connected to the second end wall 12 and the other end being a free end extending to the first end wall 11, which has a large deformability and can be used for clamping and positioning with the side wall of the to-be-pressed part 2000. The inner side wall of the second locking elastic arm 1111 can also form a groove wall of the groove 111 to simplify the overall structure of the pressing plate 1. It should be noted that the protruding structure of the second locking elastic arm 1111 can also be provided as a structure of the same shape as the clamping head provided at the end of the first locking elastic arm 101, so that the to-be-pressed part 2000 can be limited after being slid along the guide slope of the clamping head of the second locking elastic arm 1111 to the inside of the groove 111, and details are not repeated here.

[0048] For example, with reference to Figures 2 to 4 The groove bottom of the groove 111 can be provided with a protruding portion 1112 for abutting against the to-be-pressed part 2000. In this embodiment, when the protruding portion 1112 abuts against the top of the to-be-pressed part 2000, the other part of the groove bottom of the groove 111 has a gap with the top of the to-be-pressed part 2000, which is beneficial to enhance the heat dissipation effect between the to-be-pressed part 2000 and the groove bottom of the groove 111, avoid heat concentration on the groove bottom of the groove 111 and unable to dissipate in time, and further cause damage to the to-be-pressed part 2000 or the structure of the pressing plate 1.

[0049] For example, the surface of the protrusion 1112 can also be arc-shaped, so that the protrusion 1112 has a cylindrical surface, and the cylindrical surface of the protrusion 1112 can form a line contact with the top surface of the component to be pressed 2000. In the case where the component to be pressed 2000 is well positioned and there is no biasing problem, the use of the protrusion 1112 with a cylindrical surface can further reduce the contact area between the protrusion 1112 and the component to be pressed 2000, which is conducive to heat dissipation of the top surface of the component to be pressed 2000 inside the groove 111, prevents heat accumulation of the component to be pressed 2000 inside the groove 111, and protects the use safety of the component to be pressed 2000 and the structural integrity of the pressing plate 1.

[0050] For example, referring to Figures 1 to 5 , the number of grooves 111 can be two, and the two grooves 111 can be separated by the partition 112 on the first end wall 11, so that the components to be pressed 2000 are symmetrically distributed on both sides of the first end wall 11, and the stress of the components to be pressed 2000 on both sides can be balanced to ensure the contact effect of the components to be pressed 2000 and the heat dissipation element 3000. At the same time, the partition 112 can avoid the contact between the components to be pressed 2000 on both sides, which is conducive to heat dissipation between the two components to be pressed 2000. In addition, a hole portion penetrating the receiving cavity 10 of the pressing plate 1 can be arranged in the partition 112 and can be arranged in the center portion of the partition 112 (i.e., the center portion of the pressing plate 1), so as to balance the overall stress of the pressing plate 1.

[0051] In some embodiments, referring to Figures 1 to 4 , the position of the partition 112 corresponding to the opening 100 can be provided with a notch 102, which can communicate with the opening 100 to avoid the insertion action of the elastic member 2 from the opening 100 into the receiving cavity 10, and also facilitate the disassembly action of the elastic member 2 when replacing the elastic member 2, thereby optimizing the use process of the pressing plate 1.

[0052] In some embodiments, referring to Figures 1 to 5 , the second end wall 12 can be provided with a positioning portion 121 for connecting to the electrical connecting member 5000, and the electrical connecting member 5000 can be electrically connected to the component to be pressed 2000. In this embodiment, the positioning portion 121 can position the electrical connecting member 5000 on the second end wall 12, and the component to be pressed 2000 located on the first end wall 11 can form an electrical connection with the electrical connecting member 5000 through a pin, and can be fixed by using a form such as spot welding. Here, the electrical connecting member 5000 can be a component integrated with a micro circuit.

[0053] For example, referring to Figures 1 to 5, the electric connecting piece 5000 can be a PCB (Printed Circuit Board), and the positioning part 121 can include a positioning column 1211 and two third clamping elastic arms 1212. The positioning column 1211 can be protruded from the surface of the second end wall 12 and used for penetrating the PCB. The two third clamping elastic arms 1212 can be arranged on both sides of the positioning column 1211 and used for positioning the PCB to the second end wall 12 when the positioning column 1211 penetrates the PCB.

[0054] In the above embodiment, the PCB is provided with through holes opposite to the positioning column 1211 and the two third clamping elastic arms 1212. The ends of the two third clamping elastic arms 1212 can have clamping joints similar to the first clamping elastic arm 101 and the second clamping elastic arm 1111. The clamping joints of the third clamping elastic arms 1212 are protruded away from the direction of the positioning column 1211. During the installation of the PCB to the second end wall 12, the PCB can slide along the guide inclined surface of the clamping joints of the third clamping elastic arms 1212. The third clamping elastic arms 1212 are elastically deformed to approach the positioning column 1211 and then reset after the PCB is positioned on the surface of the second end wall 12. The clamping joints can limit the PCB from separating from the surface of the second end wall 12 and provide stable positioning and installation effects for the PCB.

[0055] To better understand the scheme, the installation process of the pressing plate structure will be described below.

[0056] Referring to Figure 6 , first, the to-be-pressed part 2000 can be installed in the groove 111 of the pressing plate 1, and the elastic part 2 can be installed on the first clamping elastic arm 101 of the accommodating cavity 10. At this time, the electric connecting piece 5000 can be installed on the second end wall 12 of the pressing plate 1 through the positioning part 121. Then, the heat dissipation element 3000 is connected with the to-be-pressed part 2000, and the hole part for positioning on the heat dissipation element 3000 is opposite to the hole part of the pressing plate 1. Here, the hole part of the pressing plate 1 can include a first through hole 113 on the first end wall 11 and a second through hole 122 penetrating the inside of the positioning column 1211. The first through hole 113 and the second through hole 122 are coaxially positioned and can avoid the penetrating action of the threaded connecting piece 4000. Then, the threaded connecting piece 4000 is inserted into the inside of the positioning column 1211 and sequentially penetrates the first through hole 113, the through hole 211 of the elastic part 2, the second through hole 122, and the positioning hole part of the heat dissipation element 3000. Then, the elastic part 2 can be connected with the heat dissipation element 3000 through the threaded connecting piece 4000. At this time, the threaded connecting piece 4000 can be gradually rotated to increase the compression force on the elastic part 2 until the elastic part 2 is compressed to the bottom wall of the accommodating cavity 10. The elastic part 2 can drive the pressing plate 1 to compress and fully contact the to-be-pressed part 2000 and the heat dissipation element 3000, thereby improving the heat dissipation effect of the to-be-pressed part 2000.

[0057] The second aspect of the embodiments of the present disclosure provides an integrated circuit board, which refers to the first aspect of the embodiments of the present disclosure. Figure 6 The integrated circuit board can comprise the to-be-press-fitted part 2000, the heat dissipation element 3000, and the press-fitting structure 1000 for the to-be-press-fitted part 2000 provided by the first aspect of the embodiments of the present disclosure. It can be understood that the integrated circuit board has all the beneficial technical effects of the press-fitting structure 1000 described above in the embodiments of the present disclosure, and thus the description is not repeated here.

[0058] The third aspect of the embodiments of the present disclosure provides an electrical device comprising the integrated circuit board provided by the second aspect of the embodiments of the present disclosure. It can be understood that the electrical device has all the beneficial technical effects of the electrical device described above in the embodiments of the present disclosure, and thus the description is not repeated here. The preferred embodiments of the present disclosure are described in detail above in combination with the drawings, but the present disclosure is not limited to the specific details in the above-described embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

[0059] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0060] Furthermore, any combination of the various different embodiments of the present disclosure can also be made, as long as it does not deviate from the idea of the present disclosure, and it should also be considered as disclosed by the present disclosure.

Claims

1. A press-fitting structure, characterized in that, include: The pressure plate has a receiving cavity with an opening. The pressure plate is provided with a first end wall and a second end wall facing each other. The side of the first end wall facing away from the second end wall is used to install the component to be pressed. and An elastic element, disposed within the receiving cavity via the opening, is used to press the component to be pressed against the heat dissipation element by elastically pressing against the first end wall after the pressure plate is installed onto the heat dissipation element.

2. The press-fit structure according to claim 1, characterized in that, The pressure plate is a one-piece molded part.

3. The press-fit structure according to claim 1, characterized in that, The elastic element is sheet-like, and the opening is formed on one side of the receiving cavity, wherein the elastic element is configured to be inserted into the receiving cavity through the opening.

4. The press-fit structure according to claim 3, characterized in that, The elastic element includes: Part One; and The second section is located on both sides of the first section. The second segment is at an angle to the first segment and extends toward the first end wall, such that when the first segment abuts against the inner side of the first end wall, the second segment undergoes elastic deformation and has an elastic top pressure toward the first end wall.

5. The press-fit structure according to claim 4, characterized in that, The heat dissipation element is used to connect to a threaded connector having a head and a rod. The first section has a through hole through which the rod can pass, and the first end wall and the second end wall respectively have holes to avoid the threaded connector, so that when the rod passes through the pressure plate and connects with the heat dissipation element, the head will press the first section against the inner side of the first end wall.

6. The press-fit structure according to claim 1, characterized in that, The second end wall is provided with a first locking arm, which extends along the insertion direction of the elastic member and has its free end located at the opening. The free end of the first locking arm has a snap-fit ​​structure to restrict the elastic member within the receiving cavity.

7. The press-fitting structure according to any one of claims 1-6, characterized in that, A groove for accommodating the component to be pressed is provided on the side of the first end wall opposite to the second end wall. At least one groove wall of the groove is provided with a limiting structure to position the component to be pressed into the groove.

8. The press-fit structure according to claim 7, characterized in that, It also includes a second locking arm, which extends from the second end wall to the first end wall and forms the groove wall of the groove, wherein the free end of the second locking arm has a snap-fit ​​structure to form the limiting structure.

9. The press-fitting structure according to claim 7, characterized in that, The bottom of the groove is provided with a protrusion for pressing against the component to be pressed.

10. The press-fit structure according to claim 9, characterized in that, in, The surface of the protrusion is curved.

11. The press-fit structure according to claim 7, characterized in that, The number of grooves is two, and the two grooves are separated by a partition on the first end wall.

12. The press-fit structure according to claim 11, characterized in that, The partition has a notch at the position corresponding to the opening, and the notch communicates with the opening.

13. The press-fitting structure according to any one of claims 1-5, characterized in that, The second end wall is provided with a positioning part for connecting to an electrical connector, which is electrically connected to the component to be pressed.

14. The press-fit structure according to claim 13, characterized in that, The electrical connector is a PCB, and the positioning part includes: A positioning post, protruding from the second end wall, is used to pass through the PCB; and Two third locking arms are arranged on both sides of the positioning post with the positioning post as the center, and are used to position the PCB to the second end wall when the positioning post passes through the PCB.

15. An integrated circuit board, characterized in that, include: The component to be pressed, the heat dissipation element, and the press-fitting structure for the component to be pressed according to any one of claims 1-14.

16. An electrical device, characterized in that, Including the integrated circuit board according to claim 15.

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