Pin-fin power assembly and signal transmission assembly thereof

Abstract

The application discloses a needle-planting power assembly and a signal transmission assembly thereof. The signal transmission assembly comprises a terminal seat and a conductive terminal inserted into the terminal seat. The terminal seat is a single-piece tubular structure formed integrally, and has a connecting end, a plug-in end and a positioning section between the connecting end and the plug-in end. The plug-in end has a first length and a first inner diameter, and the positioning section has a second length greater than the first length and a second inner diameter smaller than the first inner diameter. A first interference is formed between the conductive terminal and the plug-in end, and a second interference greater than the first interference is formed between the conductive terminal and the positioning section. Thus, the needle-planting section can gradually increase the interference between the needle-planting section and the terminal seat, thereby being stably inserted into the terminal seat and effectively avoiding bending during the needle-planting process.

Description

Technical Field

[0001] This invention relates to a power component, and more particularly to a pin-type power component and its signal transmission component. Background Technology

[0002] When existing power components employ a pin-mounted architecture, the conductive terminals of these components are prone to bending during insertion into the terminal block, resulting in a pin-mounting success rate that falls short of expectations. Therefore, the inventors believed that this defect could be improved, and through dedicated research and the application of scientific principles, finally proposed an invention with a rational design that effectively addresses these defects. Summary of the Invention

[0003] The present invention provides a pin-type power component and its signal transmission component, which can effectively improve the defects that may occur in existing power components.

[0004] This invention discloses a pin-type power component, comprising: a circuit board having multiple connecting pads; multiple terminal blocks, each integrally formed as a single-piece tubular structure and having a through groove along its length; wherein each terminal block has: a connecting end fixed to one of the connecting pads; a plug-in end disposed away from the connecting end; wherein the plug-in end has a first length along its length and a first inner diameter along a width direction perpendicular to its length; and a positioning segment located between the connecting end and the plug-in end; wherein the positioning segment has a second length along its length that is greater than the first length. It has a second inner diameter smaller than the first inner diameter along the width direction; a plurality of conductive terminals, each including a pin segment and a fixed segment connected to the pin segment; wherein the pin segments of the plurality of conductive terminals are respectively inserted from the insertion end of the plurality of terminal blocks into the positioning segment of the plurality of terminal blocks, so that each conductive terminal is electrically coupled to a corresponding connecting pad; wherein a first interference amount is formed between the pin segment of each conductive terminal and the insertion end of the corresponding terminal block along the width direction, and a second interference amount greater than the first interference amount is formed between the pin segment of each conductive terminal and the positioning segment of the corresponding terminal block along the width direction.

[0005] Optionally, each terminal block has a guide section connected between the plug end and the positioning section, and the inner diameter of the guide section tapers from the plug end toward the positioning section.

[0006] Optionally, in each terminal block, the inner surface of the guide section is truncated conical.

[0007] Optionally, in each terminal block, the inner surface of the guide segment is spherical and its center falls within the space surrounded by the plug end or the guide segment.

[0008] Optionally, the inner diameter of each terminal block tapers from the plug end toward the connection end.

[0009] Optionally, each terminal block has a total length along the length direction, and a second length is between 40% and 80% of the total length.

[0010] Optionally, the pin segment of each conductive terminal has an outer diameter smaller than the second inner diameter; wherein, in each terminal block, the second inner diameter is between 85% and 95% of the first inner diameter.

[0011] Optionally, the power component further includes a package, and the circuit board and multiple terminal blocks are embedded within the package, while the fixed segment of each conductive terminal does not touch the package.

[0012] Optionally, the package body is flush with the end faces of the multiple terminal blocks on a surface away from the circuit board.

[0013] Optionally, the power component further includes a package, and the circuit board and multiple terminal blocks are embedded within the package, each terminal block having a deformation based on a second interference amount so that its outer surface protrudes.

[0014] This invention also discloses a signal transmission component for a pin-type power component, comprising: a terminal block, which is an integrally formed single-piece tubular structure and has a through groove formed along its length; wherein the terminal block has: a connecting end; a plug-in end disposed away from the connecting end; wherein the plug-in end has a first length along its length and a first inner diameter along a width direction perpendicular to its length; a positioning section located between the connecting end and the plug-in end; wherein the positioning section has a second length along its length that is greater than the first length and a second inner diameter along its width that is smaller than the first inner diameter; a conductive terminal comprising a pin segment and a fixing section connected to the pin segment; wherein the pin segment of the conductive terminal is inserted from the plug-in end of the terminal block into the positioning section of the terminal block; wherein a first interference amount is formed between the pin segment of the conductive terminal and the plug-in end of the terminal block along the width direction, and a second interference amount greater than the first interference amount is formed between the pin segment of the conductive terminal and the positioning section of the terminal block along the width direction.

[0015] Optionally, the terminal block has a total length along the length direction, and a second length is between 40% and 80% of the total length. The pin section of the conductive terminal has an outer diameter smaller than the second inner diameter, and the second inner diameter is between 85% and 95% of the first inner diameter.

[0016] This invention also discloses a pin-type power assembly, comprising: a circuit board having multiple connecting pads; multiple terminal blocks, each integrally formed as a single-piece tubular structure and having a through groove along its length, the through groove having a groove cross-section perpendicular to the length direction; wherein each terminal block has: a connecting end fixed to one of the connecting pads; a plug-in end disposed away from the connecting end; a positioning section located between the connecting end and the plug-in end; multiple conductive terminals, each including a pin segment and a fixing section connected to the pin segment; wherein the pin segments of the multiple conductive terminals are respectively from the multiple terminals. The insertion end of the socket is inserted into the positioning section of multiple terminal blocks so that each conductive terminal is electrically coupled to the corresponding connecting pad; wherein, the pin section of each conductive terminal has: a front section having a front cross section in the vertical length direction, which is smaller than the slot cross section; and a rear section connected to the front section and having a rear cross section in the vertical length direction, which is larger than the slot cross section; wherein, a gap is formed between the front section of the pin section of each conductive terminal and the corresponding terminal block in a width direction along the vertical length direction, and an interference amount is formed between the rear section of the pin section of each conductive terminal and the corresponding terminal block in the width direction.

[0017] Optionally, in each conductive terminal, the front section has a first outer diameter and the rear section has a second outer diameter that is larger than the first outer diameter; in each conductive terminal and the corresponding terminal block, the inner diameter of the terminal block is larger than the first outer diameter and smaller than the second outer diameter.

[0018] Optionally, in each conductive terminal and its corresponding terminal block, the first outer diameter is between 60% and 100% of the inner diameter, and the second outer diameter is between 100% and 150% of the inner diameter.

[0019] Optionally, in each conductive terminal and its corresponding terminal block, the groove cross section and the front cross section are both circular, the rear cross section is polygonal, and multiple corners of the polygonal rear cross section interfere with the groove cross section.

[0020] Optionally, the power component further includes a package, and the circuit board and multiple terminal blocks are embedded within the package, while the fixed segment of each conductive terminal does not touch the package.

[0021] Optionally, the package body is flush with the end faces of the multiple terminal blocks on a surface away from the circuit board.

[0022] In summary, the pin-type power component and its signal transmission component disclosed in the embodiments of the present invention can, through the structural cooperation between the terminal block and the corresponding conductive terminal, gradually increase the degree of interference between the pin segment and the terminal block during the insertion process (e.g., the conductive terminal can first cooperate with the insertion end with a smaller first interference amount, and then cooperate with the positioning segment with a larger second interference amount; or, the conductive terminal first forms the gap with the terminal block in the front section, and then forms an interference fit with the terminal block in the rear section), thereby enabling the conductive terminal to be stably inserted into the terminal block and effectively preventing the conductive terminal from bending during the pin insertion process.

[0023] To further understand the features and technical content of this invention, please refer to the following detailed description and accompanying drawings. However, these descriptions and drawings are only for illustrating the invention and are not intended to limit the scope of protection of the invention in any way. Attached Figure Description

[0024] Figure 1 This is a cross-sectional schematic diagram of the pin-type power component according to Embodiment 1 of the present invention.

[0025] Figure 2 for Figure 1 An enlarged schematic diagram of region II.

[0026] Figure 3 for Figure 2 A schematic diagram of the changing state of a sample (I).

[0027] Figure 4 for Figure 2 Schematic diagram of the changing state (II).

[0028] Figure 5 for Figure 2 Schematic diagram of the changing state (III).

[0029] Figure 6 This is a cross-sectional schematic diagram of the needle-type power component according to Embodiment 2 of the present invention.

[0030] Figure 7 This is a cross-sectional schematic diagram of the needle-type power component according to Embodiment 3 of the present invention.

[0031] Figure 8 for Figure 7 A schematic cross-sectional view along section line VIII-VIII.

[0032] Figure 9 for Figure 7 A cross-sectional view along section line IX-IX.

[0033] Figure 10 This is a cross-sectional schematic diagram of another aspect of the needle-type power component according to Embodiment 3 of the present invention. Detailed Implementation

[0034] The following specific embodiments illustrate the implementation of the "needle-type power component and its signal transmission component" disclosed in this invention. Those skilled in the art can understand the advantages and effects of this invention from the content disclosed in this specification. This invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this invention. Furthermore, the accompanying drawings of this invention are for simple illustrative purposes only and are not depictions of actual dimensions; this is stated beforehand. The following embodiments will further describe the relevant technical content of this invention in detail, but the disclosed content is not intended to limit the scope of protection of this invention.

[0035] It should be understood that while terms such as "first," "second," and "third" may be used in this document to describe various components or features, these components or features should not be limited by these terms. These terms are primarily used to distinguish one component from another, or one feature from another. Furthermore, the term "or" as used in this document should, as appropriate, include any combination of one or more related listed items.

[0036] [Example 1]

[0037] Please see Figures 1 to 5 As shown, this is an embodiment of the present invention. Figure 1 and Figure 2 As shown, this embodiment discloses a pin-type power component 100, which includes a circuit board 1, at least one electronic component 2 mounted on the circuit board 1, a plurality of terminal blocks 3 disposed on the circuit board 1, a plurality of conductive terminals 4 respectively inserted into the plurality of terminal blocks 3, and an encapsulation body 5 formed on the circuit board 1.

[0038] It should be further noted that the terminal block 3 and the corresponding conductive terminal 4 can be collectively defined as a signal transmission component 10, and the pin-type power component 100 in this embodiment is described in combination with multiple signal transmission components 10 and the circuit board 1 and the package 5, but the present invention is not limited thereto. For example, in other embodiments of the present invention not shown, the signal transmission component 10 can be used alone (e.g., for sale) or in combination with other components; or, the package 5 and / or at least one of the electronic components 2 can be omitted or replaced with other structures according to actual needs.

[0039] In this embodiment, the circuit board 1 includes a substrate 11 and a plurality of connecting pads 12 disposed on the substrate 11. The substrate 11 has an inner surface 111 and an outer surface 112 located on opposite sides. At least one electronic component 2 is mounted on the inner surface 111. The plurality of connecting pads 12 are spaced apart from each other on the inner surface 111, and at least one connecting pad 12 can be electrically coupled to at least one electronic component 2 through the substrate 11.

[0040] It should be noted that the specific type of the circuit board 1 can be adjusted and changed according to actual needs; for example, the circuit board 1 can be a printed circuit board (PCB), a direct bonding copper (DBC) substrate, a direct plated copper (DPC) substrate, an active metal brazing (AMB) substrate, or other materials with circuit layout.

[0041] The terminal blocks 3 of the plurality of signal transmission components 10 are respectively mounted and electrically coupled to the plurality of connection pads 12 of the circuit board 1. Furthermore, since the plurality of signal transmission components 10 adopt a substantially identical structure in this embodiment, for ease of understanding, the following description will only focus on one of the signal transmission components 10 (i.e., one terminal block 3 and a corresponding conductive terminal 4), but the invention is not limited thereto. For example, in other embodiments of the invention not shown, the structure of the plurality of signal transmission components 10 may also differ slightly.

[0042] In this embodiment, the terminal block 3 is an integrally formed single-piece tubular structure with a through groove 35 formed along its length direction L. The terminal block 3 is generally cylindrical and has a total length L3 along the length direction L. The terminal block 3 has a connecting end 31, a plug-in end 32 disposed away from the connecting end 31, and a positioning section 33 located between the connecting end 31 and the plug-in end 32.

[0043] Furthermore, the connecting end 31 is fixed to one of the connecting pads 12, so that the terminal block 3 is upright on the circuit board 1. That is, one end of the through groove 35 located at the connecting end 31 is closed by the corresponding connecting pad 12. In addition, the fixing between the connecting end 31 and the corresponding connecting pad 12 can be achieved by welding, but the present invention is not limited thereto.

[0044] Furthermore, compared to the positioning segment 33 in this embodiment, the connecting end 31 and the insertion end 32 are different. Figure 2 The arrangement is mirror-symmetric, but the invention is not limited thereto. For example, such as Figure 3 As shown, the inner diameter of the terminal block 3 can be tapered from the plug-in end 32 toward the connection end 31 according to design requirements; or, in other embodiments not shown in this invention, the length of the connection end 31 may be different from that of the plug-in end 32.

[0045] like Figure 1 and Figure 2 As shown, the insertion end 32 has a first length L32 along the length direction L and a first inner diameter D32 along a width direction W perpendicular to the length direction L. The positioning segment 33 has a second length L33 along the length direction L that is greater than the first length L32 and a second inner diameter D33 along the width direction W that is smaller than the first inner diameter D32.

[0046] Furthermore, the second length L33 is between 40% and 80% of the total length L3, and the second inner diameter D33 is between 85% and 95% of the first inner diameter D32. In other words, in this embodiment, the second length L33 can be between 1 millimeter (mm) and 2.5 millimeters, and the difference between the second inner diameter D33 and the first inner diameter D32 can be between 3 micrometers (μm) and 12 micrometers, but the present invention is not limited to the above.

[0047] In addition, such as Figure 2 and Figure 3 As shown, the positioning segment 33 may be connected between the connecting end 31 and the insertion end 32, but the present invention is not limited thereto. For example, such as Figure 4 and Figure 5 As shown, the terminal block 3 has a guide section 34 connecting the insertion end 32 and the positioning section 33, and the inner diameter of the guide section 34 tapers from the insertion end 32 toward the positioning section 33. Alternatively, the terminal block 3 may also have another guide section 34 between the connection end 31 and the positioning section 33, but is not limited thereto.

[0048] Furthermore, the shape of the inner surface 341 of the guide section 34 can be adjusted and varied according to design requirements; for example, such as Figure 4 As shown, the inner surface 341 of the guide section 34 of the terminal block 3 may be truncated conical; or, as... Figure 5As shown, the inner surface 341 of the guide section 34 of the terminal block 3 may also be spherical and its center falls within the space surrounded by the plug end 32 or the guide section 34.

[0049] like Figure 1 and Figure 2 As shown, the conductive terminal 4 includes a pin segment 41 and a fixing segment 42 connected to the pin segment 41. The pin segment 41 is cylindrical and has an outer diameter D41 smaller than the second inner diameter D33. In this embodiment, the end edge of the pin segment 41 can be planar or curved, and the outer diameter D41 of the pin segment 41 is also slightly smaller than or equal to the first inner diameter D32. The end of the fixing segment 42 forms a fisheye portion for insertion into a corresponding hole in a circuit board (not shown in the figure), but the present invention is not limited thereto.

[0050] As described above, the pin segments 41 of the plurality of conductive terminals 4 are respectively inserted from the insertion ends 32 of the plurality of terminal seats 3 into the positioning segments 33 of the plurality of terminal seats 3, so that each conductive terminal 4 is electrically coupled to the corresponding connecting pad 12. A first interference amount is formed between the pin segment 41 of each conductive terminal 4 and the insertion end 32 of the corresponding terminal seat 3 along the width direction W, and a second interference amount greater than the first interference amount is formed between the pin segment 41 of each conductive terminal 4 and the positioning segment 33 of the corresponding terminal seat 3 along the width direction W.

[0051] Therefore, in this embodiment, the pin-type power assembly 100 can achieve structural cooperation between each terminal block 3 and the corresponding conductive terminal 4, so that when the pin segment 41 is inserted into the terminal block 3, it can first cooperate with the insertion end 32 with a smaller first interference amount, and then cooperate with the positioning segment 33 with a larger second interference amount, thereby enabling the conductive terminal 4 to be stably inserted into the terminal block 3 and effectively preventing the conductive terminal 4 from bending during the pin insertion process.

[0052] Furthermore, the package 5 can be a molded compound or a liquid compound, depending on actual needs, and the circuit board 1 and the plurality of terminal blocks 3 are embedded within the package 5. The outer surface 112 of the circuit board 1 can be made of metal and exposed outside the package 5, thereby improving the heat dissipation efficiency of the circuit board 1.

[0053] Furthermore, the end face of the insertion end 32 of each of the terminal blocks 3 may also be partially exposed outside the package 5. More specifically, the package 5 has the end faces of the plurality of terminal blocks 3 substantially flush with an outer surface away from the circuit board 1.

[0054] In other words, the package 5 of this embodiment is already formed on the circuit board 1 and the multiple terminal blocks 3 before the multiple conductive terminals 4 are inserted into the multiple terminal blocks 3.

[0055] [Example 2]

[0056] Please see Figure 6 As shown, this is Embodiment Two of the present invention. Since this embodiment is similar to Embodiment One described above, the similarities between the two embodiments will not be repeated. The main differences between this embodiment and Embodiment One are as follows:

[0057] In this embodiment, the package 5 is formed on the circuit board 1 and the terminal blocks 3 after the plurality of conductive terminals 4 are inserted into the plurality of terminal blocks 3. Each terminal block 3 has a deformation in its positioning segment 33 based on the second interference amount, causing its outer surface to protrude. The package 5 covers the outer surfaces of the plurality of terminal blocks 3 and allows for the presence of the deformation.

[0058] [Example 3]

[0059] Please see Figures 7 to 10 As shown, this is Embodiment Three of the present invention. Since this embodiment is similar to Embodiments One and Two described above, the similarities between the above embodiments will not be repeated. The main differences between this embodiment and Embodiments One and Two are explained below:

[0060] like Figures 7 to 9 As shown, this embodiment discloses a pin-type power component 100, which includes a circuit board 1, at least one electronic component 2 mounted on the circuit board 1, a plurality of terminal blocks 3 disposed on the circuit board 1, a plurality of conductive terminals 4 respectively inserted into the plurality of terminal blocks 3, and an encapsulation body 5 formed on the circuit board 1.

[0061] It should be further noted that the terminal block 3 and the corresponding conductive terminal 4 can be collectively defined as a signal transmission component 10, and the pin-type power component 100 in this embodiment is described in combination with multiple signal transmission components 10 and the circuit board 1 and the package 5, but the present invention is not limited thereto. For example, in other embodiments of the present invention not shown, the signal transmission component 10 can be used alone (e.g., for sale) or in combination with other components; or, the package 5 and / or at least one of the electronic components 2 can be omitted or replaced with other structures according to actual needs.

[0062] Furthermore, the structure of the circuit board 1 is largely the same as in Embodiments 1 and 2, and therefore will not be described in detail here. Moreover, since the plurality of signal transmission components 10 adopt a substantially identical structure in this embodiment, for ease of understanding, the following description will only focus on one of the signal transmission components 10 (i.e., one terminal block 3 and a corresponding conductive terminal 4), but the present invention is not limited thereto. For example, in other embodiments of the present invention not shown, the structure of the plurality of signal transmission components 10 may also differ slightly.

[0063] In this embodiment, the terminal block 3 is an integrally formed single-piece tubular structure with a through groove 35 formed along its length direction L. In this embodiment, the terminal block 3 is generally cylindrical and has a generally the same inner diameter, while the through groove 35 has a groove cross-section 351 perpendicular to the length direction L (that is, any two parts of the through groove 35 have a generally the same groove cross-section 351).

[0064] The terminal block 3 has a connecting end 31, a plug-in end 32 disposed away from the connecting end 31, and a positioning section 33 located between the connecting end 31 and the plug-in end 32. Furthermore, the connecting end 31 is fixed to one of the connecting pads 12, so that the terminal block 3 is upright mounted on the circuit board 1. That is, one end of the through groove 35 located at the connecting end 31 is closed by the corresponding connecting pad 12. Moreover, the fixing between the connecting end 31 and the corresponding connecting pad 12 can be achieved by welding, but the present invention is not limited thereto.

[0065] The conductive terminal 4 includes a pin segment 41 and a fixing segment 42 connected to the pin segment 41. The end edge of the pin segment 41 can be planar or curved, and the end of the fixing segment 42 forms a fisheye portion for insertion into a corresponding hole in a circuit board (not shown in the figure). However, the present invention is not limited thereto.

[0066] Thus, the pin segments 41 of the plurality of conductive terminals 4 are respectively inserted from the insertion ends 32 of the plurality of terminal seats 3 into the positioning segments 33 of the plurality of terminal seats 3, so that each conductive terminal 4 (the pin segment 41 abuts against the terminal seat 3 and is then) electrically coupled to the corresponding connecting pad 12.

[0067] Furthermore, the pin-planting segment 41 of the conductive terminal 4 has a front segment 411 and a rear segment 412 connected between the front segment 411 and the fixing segment 42. It should be noted that, in order to facilitate the insertion of the pin-planting segment 41 into the terminal base 3, the front segment 411 and the rear segment 412 can be connected by a guide bevel, but the present invention is not limited thereto.

[0068] Furthermore, the front section 411 has a front cross-section 4111 perpendicular to the length direction L, which is smaller than the groove cross-section 351. Both the groove cross-section 351 of the through groove 35 and the front cross-section 4111 of the front section 411 are circular, and the inner diameter D3 of the terminal base 3 is greater than or equal to a first outer diameter D411 of the front section 411 (e.g., the first outer diameter D411 is between 60% and 100% of the inner diameter D3). Thus, a gap G is formed between the front section 411 of the pin insertion segment 41 and the corresponding terminal base 3 along a width direction W perpendicular to the length direction L (i.e., there is no interference resistance between the front section 411 and the terminal base 3). This allows the front section 411 and the terminal base 3 to cooperate to counteract lateral stress during the pin insertion process of the conductive terminal 4, facilitating the complete implantation of the pin insertion segment 41 into the terminal base 3.

[0069] Furthermore, the rear section 412 has a rear cross section 4121 perpendicular to the length direction L, which is larger than the groove cross section 351. The rear cross section 4121 is polygonal, and the rear section 412 has a second outer diameter D412 larger than the first outer diameter D411, while the inner diameter D3 of the terminal block 3 is less than or equal to the second outer diameter D412 (e.g., the second outer diameter D412 is between 100% and 150% of the inner diameter D3). Thus, an interference amount is formed between the rear section 412 of the pin insertion section 41 of the conductive terminal 4 and the corresponding terminal block 3 along the width direction W (e.g., multiple corners of the polygonal rear cross section 4121 interfere with the groove cross section 351).

[0070] As described above, in this embodiment, the pin-type power assembly 100 can achieve a structural fit between each terminal block 3 and the corresponding conductive terminal 4, so that during the insertion of the pin segment 41 into the terminal block 3, the front section 411 first forms the gap G with the terminal block 3, and the rear section 412 forms an interference fit with the terminal block 3, thereby enabling the conductive terminal 4 to be stably inserted into the terminal block 3 and effectively preventing the conductive terminal 4 from bending during the pin insertion process.

[0071] Furthermore, the package 5 can be a molded compound or a liquid compound, depending on actual needs, and the circuit board 1 and the plurality of terminal blocks 3 are embedded within the package 5. The outer surface 112 of the circuit board 1 can be made of metal and exposed outside the package 5, thereby improving the heat dissipation efficiency of the circuit board 1.

[0072] The end face of the insertion end 32 of each of the terminal blocks 3 may also be partially exposed outside the package 5. More specifically, the package 5 has the end faces of the plurality of terminal blocks 3 substantially flush with an outer surface away from the circuit board 1.

[0073] In other words, the package 5 of this embodiment is already formed on the circuit board 1 and the multiple terminal blocks 3 before the multiple conductive terminals 4 are inserted into the multiple terminal blocks 3.

[0074] Furthermore, such as Figure 10 As shown, the package 5 is formed on the circuit board 1 and the terminal blocks 3 after the plurality of conductive terminals 4 are inserted into the plurality of terminal blocks 3. Each terminal block 3 has a deformation based on the second interference amount, causing its outer surface to protrude. The package 5 covers the outer surface of the plurality of terminal blocks 3 and allows for the presence of the deformation.

[0075] It should be noted that, in other embodiments of the present invention not shown, the signal transmission component 10 may also use the terminal block 3 of Embodiment 1 in combination with the conductive terminal 4 of Embodiment 2, depending on actual needs.

[0076] [Technical Effects of the Embodiments of the Invention]

[0077] In summary, the pin-type power component and its signal transmission component disclosed in the embodiments of the present invention can, through the structural cooperation between the terminal block and the corresponding conductive terminal, gradually increase the degree of interference between the pin segment and the terminal block during the insertion process (e.g., the conductive terminal can first cooperate with the insertion end with a smaller first interference amount, and then cooperate with the positioning segment with a larger second interference amount; or, the conductive terminal first forms a gap with the terminal block in the front section, and then forms an interference fit with the terminal block in the rear section), thereby enabling the conductive terminal to be stably inserted into the terminal block and effectively preventing the conductive terminal from bending during the pin insertion process.

[0078] The above-disclosed content is only an optional and feasible embodiment of the present invention, and is not intended to limit the patent scope of the present invention. Therefore, all equivalent technical changes made based on the content of the present invention specification and drawings are included within the patent scope of the present invention.

Claims

1. A pin-type power component, characterized in that, The pin-type power component includes: a circuit board having multiple connection pads; Multiple terminal blocks, each an integrally formed single-piece tubular structure, and each having a through groove along its length; wherein each terminal block has: One connecting end is fixed to one of the connecting pads; A plug-in end, disposed away from the connecting end; wherein the plug-in end has a first length along the length direction and a first inner diameter along a width direction perpendicular to the length direction; and A positioning segment is located between the connecting end and the plugging end; wherein the positioning segment has a second length greater than the first length along the length direction and a second inner diameter smaller than the first inner diameter along the width direction; and A plurality of conductive terminals, each comprising a pin segment and a fixed segment connected to the pin segment; wherein the pin segments of the plurality of conductive terminals are respectively inserted from the insertion ends of the plurality of terminal blocks into the positioning segments of the plurality of terminal blocks, so that each conductive terminal is electrically coupled to a corresponding connecting pad; wherein a first interference amount is formed between the pin segment of each conductive terminal and the insertion end of the corresponding terminal block along the width direction, and a second interference amount greater than the first interference amount is formed between the pin segment of each conductive terminal and the positioning segment of the corresponding terminal block along the width direction.

2. The power component according to claim 1, characterized in that, Each of the terminal blocks has a guide section connecting the plug end and the positioning section, and the inner diameter of the guide section tapers from the plug end toward the positioning section.

3. The power component according to claim 2, characterized in that, In each of the terminal blocks, the inner surface of the guide segment is truncated conical.

4. The power component according to claim 2, characterized in that, In each of the terminal blocks, the inner surface of the guide segment is spherical and the center of the sphere falls within the space surrounded by the plug end or the guide segment.

5. The power component according to claim 1, characterized in that, The inner diameter of each terminal block tapers from the plug end toward the connection end.

6. The power component according to claim 1, characterized in that, Each of the terminal blocks has a total length along the length direction, and the second length is between 40% and 80% of the total length.

7. The power component according to claim 1, characterized in that, The pin segment of each of the conductive terminals has an outer diameter smaller than the second inner diameter; wherein, in each of the terminal blocks, the second inner diameter is between 85% and 95% of the first inner diameter.

8. The power component according to claim 1, characterized in that, The power component further includes a package, and the circuit board and the plurality of terminal blocks are embedded within the package, while the fixed segment of each of the conductive terminals does not touch the package.

9. The power component according to claim 8, characterized in that, The package body is cut flush with the end faces of the plurality of terminal blocks on a surface away from the circuit board.

10. The power component according to claim 1, characterized in that, The power component further includes a package, and the circuit board and the plurality of terminal blocks are embedded within the package, wherein the positioning segment of each terminal block has a deformation based on the second interference amount so that its outer surface protrudes.

11. A signal transmission component for a pin-type power module, characterized in that, The signal transmission component of the implanted needle power component includes: A terminal block is a single-piece tubular structure integrally formed and has a through groove along its length; wherein, the terminal block has: One connecting end; A plug-in end, disposed away from the connecting end; wherein the plug-in end has a first length along the length direction and a first inner diameter along a width direction perpendicular to the length direction; and A positioning segment is located between the connecting end and the plugging end; wherein the positioning segment has a second length greater than the first length along the length direction and a second inner diameter smaller than the first inner diameter along the width direction; and A conductive terminal includes a pin segment and a fixed segment connected to the pin segment; wherein the pin segment of the conductive terminal is inserted from the insertion end of the terminal block into the positioning segment of the terminal block; Wherein, a first interference amount is formed between the pin segment of the conductive terminal and the insertion end of the terminal block along the width direction, and a second interference amount greater than the first interference amount is formed between the pin segment of the conductive terminal and the positioning segment of the terminal block along the width direction.

12. The signal transmission component of the power component according to claim 11, characterized in that, The terminal block has a total length along the length direction, and the second length is between 40% and 80% of the total length. The pin segment of the conductive terminal has an outer diameter smaller than the second inner diameter, and the second inner diameter is between 85% and 95% of the first inner diameter.

13. A pin-type power component, characterized in that, The pin-type power component includes: a circuit board having multiple connection pads; Multiple terminal blocks, each integrally formed as a single-piece tubular structure, have a through groove formed along the length direction of the single-piece tubular structure, and the through groove has a groove cross-section perpendicular to the length direction; wherein, each terminal block has: One connecting end is fixed to one of the connecting pads; A plug-in end, disposed away from the connection end; and A positioning segment is located between the connecting end and the plugging end; and A plurality of conductive terminals, each comprising a pin segment and a fixing segment connected to the pin segment; wherein the pin segments of the plurality of conductive terminals are respectively inserted from the insertion ends of the plurality of terminal blocks into the positioning segments of the plurality of terminal blocks, so that each conductive terminal is electrically coupled to the corresponding connecting pad. Wherein, the pin segment of each of the conductive terminals has: A front section having a front cross-section perpendicular to the length direction, which is smaller than the groove cross-section; and A rear section is connected to the front section and has a rear cross section perpendicular to the length direction, the rear cross section being larger than the groove cross section; Wherein, a gap is formed between the front section of the pin segment of each conductive terminal and the corresponding terminal base along a width direction perpendicular to the length direction, and an interference amount is formed between the rear section of the pin segment of each conductive terminal and the corresponding terminal base along the width direction.

14. The power component according to claim 13, characterized in that, In each of the conductive terminals, the front section has a first outer diameter, and the rear section has a second outer diameter that is larger than the first outer diameter; in each of the conductive terminals and the corresponding terminal block, the inner diameter of the terminal block is larger than the first outer diameter and smaller than the second outer diameter.

15. The power component according to claim 14, characterized in that, In each of the conductive terminals and the corresponding terminal blocks, the first outer diameter is between 60% and 100% of the inner diameter, and the second outer diameter is between 100% and 150% of the inner diameter.

16. The power component according to claim 13, characterized in that, In each of the conductive terminals and the corresponding terminal blocks, the groove cross-section and the front cross-section are both circular, the rear cross-section is polygonal, and multiple corners of the polygonal rear cross-section interfere with the groove cross-section.

17. The power component according to claim 13, characterized in that, The power component further includes a package, and the circuit board and the plurality of terminal blocks are embedded within the package, while the fixed segment of each of the conductive terminals does not touch the package.

18. The power component according to claim 17, characterized in that, The package body is cut flush with the end faces of the plurality of terminal blocks on a surface away from the circuit board.

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