Power element and power module

Abstract

A power element and a power module, the power element includes a body, a first terminal set and a second terminal set. The first terminal set and the second terminal set are connected to two sides of the body respectively. The first terminal set includes nine terminals, and the second terminal set includes eight terminals. The nine terminals of the first terminal set include terminals with different widths, so as to be suitable for half-bridge power elements and three-phase power elements.

Description

Technical Field

[0001] This utility model relates to a power element. In particular, it relates to a power element having a terminal structure applicable to both half-bridge and three-phase power elements. Background Technology

[0002] In recent years, with the advancement of technology, electric motors have been widely used in various equipment and devices. Inverter systems, which can convert direct current into alternating current with variable frequency and current to drive electric motors, have also become an important area of ​​development.

[0003] DC-AC conversion uses a switching strategy to control the switching sequence of each phase switch, and uses frequency and current commands or torque commands to control the converter output, thereby driving the motor to provide speed and torque. The higher the frequency, the faster the motor speed, the higher the output current, the stronger the motor torque, and the greater the kinetic energy it can provide.

[0004] Generally speaking, electric motor drive inverters select appropriate power switching element types, such as power chips, based on the operating voltage and switching frequency range.

[0005] Providing appropriate terminal designs for power components to facilitate the configuration of different power components and power modules will help improve the ease of use of power components and power modules. Utility Model Content

[0006] This utility model description is intended to provide a simplified summary of the present disclosure to enable the reader to have a basic understanding of it. This description is not a complete overview of the present disclosure, and is not intended to identify key / critical elements of the embodiments of the present utility model or to define the scope of the present utility model.

[0007] One objective of this invention is to provide a power element and a power module that can be adapted to different power element designs under the same terminal configuration architecture.

[0008] To achieve the above objectives, one aspect of this utility model relates to a power element comprising a body, a first terminal group, and a second terminal group. The first terminal group and the second terminal group are respectively connected to two sides of the body. The first terminal group comprises nine terminals, and the second terminal group comprises eight terminals, with the nine terminals of the first terminal group comprising terminals of various widths.

[0009] In some embodiments, the first terminal group is sequentially divided into a first terminal group, a second terminal group, a third terminal group, and a fourth terminal group, each of which is composed of two terminals with different widths.

[0010] In some embodiments, the total cross-sectional area of ​​the first terminal, the second terminal, and the third terminal of the first terminal group is equal to the total cross-sectional area of ​​the eighth terminal and the ninth terminal of the first terminal group.

[0011] In some embodiments, the second, fourth, and sixth terminals of the first terminal group have the same width, and the third, fifth, and seventh terminals of the first terminal group have the same width.

[0012] In some embodiments, the distance between the third terminal and the fourth terminal of the first terminal group is equal to the distance between the fifth terminal and the sixth terminal, and equal to the distance between the seventh terminal and the eighth terminal.

[0013] In some embodiments, the distance between the third terminal and the fourth terminal of the first terminal group is equal to the height from the upper surface of the third terminal to the upper surface of the body.

[0014] In some embodiments, when the power element is a three-phase power element, the first terminal of the first terminal group is an open terminal.

[0015] According to another embodiment of this utility model, a power module is disclosed, comprising a circuit board, multiple power components, three first electrode plates, three second electrode plates, and three third electrode plates. The multiple power components are fixed to the circuit board in three columns. Each first electrode plate is electrically connected to the first terminal group of the first terminal group of the power components in the same column; each second electrode plate is electrically connected to the fourth terminal group of the first terminal group of the power components in the same column; and each third electrode plate is electrically connected to the second and third terminal groups of the first terminal group of the power components in the same column.

[0016] In some embodiments, the power module further includes a plurality of conductive posts passing through the circuit board to electrically connect a second terminal group and a third terminal group.

[0017] In some embodiments, the power module further includes a water-cooled heat sink, with the upper surface of the power element in contact with the water-cooled heat sink.

[0018] According to another embodiment of the present invention, a power element is disclosed comprising a body, a first terminal group, and a second terminal group. The first terminal group is connected to one side of the body, while the second terminal group is connected to the other side of the body. The first terminal group comprises eight terminals, and the second terminal group comprises eight terminals, wherein the eight terminals of the first terminal group comprise terminals of various widths.

[0019] Therefore, the power element disclosed in this utility model can provide the required single-phase or three-phase current according to actual needs, so as to provide the power module with three-phase output current. Moreover, the power module can be equipped with multiple power elements to provide the required three-phase AC output according to actual needs. In addition, the power module can directly fix the water-cooled heat sink to the surface of the power chip, effectively improving the heat dissipation efficiency of the power module. Attached Figure Description

[0020] To make the above and other objects, features, advantages and embodiments disclosed herein more apparent and understandable, the accompanying drawings are described below:

[0021] Figure 1 This is a perspective view of a power element according to an embodiment of the present invention;

[0022] Figure 2 This is a side view schematic diagram of a power element according to an embodiment of the present invention;

[0023] Figure 3 This is a top view of multiple power components mounted on a circuit board;

[0024] Figure 4 This is a top view of multiple power components mounted on another circuit board;

[0025] Figure 5 This is a side view schematic diagram of a power module according to another embodiment of the present utility model.

[0026] [Symbol Explanation]

[0027] 100: Power Components

[0028] 101: Length

[0029] 102: Width

[0030] 103: Spacing

[0031] 104: Altitude

[0032] 110:Ontology

[0033] 120: First terminal group

[0034] 121: First terminal

[0035] 122: Second terminal

[0036] 123: Third terminal

[0037] 124: Fourth terminal

[0038] 125: Fifth terminal

[0039] 126: Sixth terminal

[0040] 127: Seventh terminal

[0041] 128: Eighth terminal

[0042] 129: Ninth terminal

[0043] 130: Second terminal group

[0044] 131: Tenth terminal

[0045] 132: Eleventh terminal

[0046] 133: Twelfth terminal

[0047] 134: Thirteenth terminal

[0048] 135: Fourteenth terminal

[0049] 136: Fifteenth terminal

[0050] 137: Sixteenth terminal

[0051] 138: Seventeenth terminal

[0052] 310: Circuit board

[0053] 312: First conductive pad

[0054] 314: Third conductive pad

[0055] 315: Conductive post

[0056] 316: Second conductive pad

[0057] 320: First electrode plate

[0058] 330: Third electrode plate

[0059] 340: Second electrode plate

[0060] 410: Circuit board

[0061] 412: First conductive pad

[0062] 413: First conductive post

[0063] 414: Third conductive pad

[0064] 415: Third conductive post

[0065] 416: Second conductive pad

[0066] 417: Second conductive post

[0067] 420: First electrode plate

[0068] 430: Third electrode plate

[0069] 440: Second electrode plate

[0070] 500: Power Module

[0071] 510: Water-cooled radiator

[0072] 520: Fixed Column Detailed Implementation

[0073] The following is a detailed description of embodiments in conjunction with the accompanying drawings. However, the provided embodiments are not intended to limit the scope of this disclosure, and the description of the structural operation is not intended to limit the order of execution. Any structure resulting from the recombination of elements and producing an apparatus with equivalent functionality is within the scope of this disclosure. Furthermore, the drawings are for illustrative purposes only and are not drawn to their original dimensions. For ease of understanding, the same or similar elements will be designated with the same symbols in the following description.

[0074] Furthermore, unless otherwise specified, the terms used throughout this specification and claims generally have their ordinary meaning in the context of this art, the content of this disclosure, and the specific content. Certain terms used to describe this disclosure will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing this disclosure.

[0075] In the embodiments and claims, unless otherwise specified in the text, "a" and "the" may refer to one or more. The numbers used in the steps are only for indicating the steps for ease of description, and are not used to limit the order or implementation method.

[0076] Secondly, the terms “contains,” “includes,” “has,” “contains,” etc., used in this article are all open-ended terms, meaning that they include but are not limited to.

[0077] Figure 1 This is a perspective schematic diagram of a power element according to an embodiment of the present invention. Figure 2 Here is a side view diagram. Figure 3 and Figure 4 This is a top-view diagram showing multiple power modules mounted on a circuit board. Figure 5 This is a side view schematic diagram illustrating another implementation of a power module.

[0078] First refer to Figure 1 and Figure 2As shown in the figure, the power element 100 includes a body 110, a first terminal group 120, and a second terminal group 130. The first terminal group 120 is connected to one side of the body 110, while the second terminal group 130 is connected to the other side of the body 110. The first terminal group 120 includes nine terminals, such as first terminal 121, second terminal 122, third terminal 123, fourth terminal 124, fifth terminal 125, sixth terminal 126, seventh terminal 127, eighth terminal 128, and ninth terminal 129, preferably having the same length, but this invention is not limited thereto. It is worth noting that the nine terminals of the first terminal group 120 include terminals of various widths. In addition, the second terminal group 130 includes eight terminals, such as the tenth terminal 131, the eleventh terminal 132, the twelfth terminal 133, the thirteenth terminal 134, the fourteenth terminal 135, the fifteenth terminal 136, the sixteenth terminal 137 and the seventeenth terminal 138, preferably having the same width and length, but the present invention is not limited thereto.

[0079] For example, the second terminal 122, the fourth terminal 124, the sixth terminal 126, and the eighth terminal 128 have the same width, for example, 2 mm. The third terminal 123, the fifth terminal 125, and the seventh terminal 127 have the same width, for example, 1 mm.

[0080] In some embodiments, the total cross-sectional area of ​​the first terminal 121, the second terminal 122, and the third terminal 123 is equal to the total cross-sectional area of ​​the eighth terminal 128 and the ninth terminal 129 of the first terminal group 120. In other words, when the lengths of the first terminal 121, the second terminal 122, the third terminal 123, the eighth terminal 128, and the ninth terminal 129 are the same, the total width of the first terminal 121, the second terminal 122, and the third terminal 123 is equal to the total width of the eighth terminal 128 and the ninth terminal 129. For example, the width of the first terminal 121 is approximately 1.4 mm, and the width of the ninth terminal 129 is approximately 2.4 mm. Therefore, the total width of the first terminal 121, the second terminal 122, and the third terminal 123 is approximately 4.4 mm, and the total width of the eighth terminal 128 and the ninth terminal 129 is also approximately 4.4 mm. However, this invention is not limited to this.

[0081] In some embodiments, the width of each of the eight terminals of the second terminal group 130 is approximately 1 mm, but the present invention is not limited thereto.

[0082] In some embodiments, the power element 100 may not require the first terminal 121 of the first terminal group 120. In this case, the first terminal group 120 includes eight terminals, namely... Figure 1The first terminal group 120 includes a second terminal 122, a third terminal 123, a fourth terminal 124, a fifth terminal 125, a sixth terminal 126, a seventh terminal 127, an eighth terminal 128, and a ninth terminal 129, and the eight terminals also include terminals of various widths. The total cross-sectional area of ​​the second terminal 122 and the third terminal 123 of the first terminal group 120 is equal to the total cross-sectional area of ​​the eighth terminal 128 and the ninth terminal 129 of the first terminal group 120.

[0083] In some embodiments, the distance 103 between the third terminal 123 and the fourth terminal 124 of the first terminal group 120 is approximately equal to the distance 103 between the fifth terminal 125 and the sixth terminal 126, and approximately equal to the distance 103 between the seventh terminal 127 and the eighth terminal 128. For example, the distance 103 is approximately 4.3 mm, but the present invention is not limited thereto.

[0084] In some embodiments, the distance 103 between the third terminal 123 and the fourth terminal 124 of the first terminal group 120 is also equal to the height 104 from the upper surface of the third terminal 123 to the upper surface of the body 110. In other words, the height 104 is also approximately 4.3 mm, but the present invention is not limited thereto.

[0085] In some embodiments, the body 110 of the power element 100 is a rectangular body with a length 101 of 37 mm and a width 102 of 36 mm. Furthermore, in other embodiments, the body 110 of the power element 100 is a rectangular body with a length 101 of 28 mm and a width 102 of 36 mm, designed to provide the required three-phase AC power supply according to the actual output current demand.

[0086] In some embodiments, the power element 100 may be a power chip, such as a half-bridge power element, or a three-phase power element.

[0087] In some embodiments, the first terminal group 120 may be sequentially divided into three sub-terminal groups, such as the second terminal 122 and the third terminal 123, the fourth terminal 124 and the fifth terminal 125, and the sixth terminal 126 and the seventh terminal 127. In some embodiments, the first terminal group 120 may be sequentially divided into four sub-terminal groups, such as the first terminal group, the second terminal group, the third terminal group, and the fourth terminal group, respectively, formed by the second terminal 122 and the third terminal 123, the fourth terminal 124 and the fifth terminal 125, the sixth terminal 126 and the seventh terminal 127, and the eighth terminal 128 and the ninth terminal 129. Furthermore, it is worth noting that the width of the second terminal 122 is different from the width of the third terminal 123, the width of the fourth terminal 124 is different from the width of the fifth terminal 125, and the width of the sixth terminal 126 is different from the width of the seventh terminal 127.

[0088] In some embodiments, the second terminal group 130 can be divided into four sub-terminal groups, such as the tenth terminal 131 and the eleventh terminal 132, the twelfth terminal 133 and the thirteenth terminal 134, the fourteenth terminal 135 and the fifteenth terminal 136, and the sixteenth terminal 137 and the seventeenth terminal 138, forming four sub-terminal groups. The spacing between the sub-terminal groups is greater than the spacing between adjacent terminals within the sub-terminal group. However, the present invention is not limited to this.

[0089] In some embodiments, when the power element 100 is a three-phase power element, the first terminal 121 of the first terminal group 120 can be an unconnected terminal.

[0090] Further reading Figure 3 As shown in the figure, multiple power components 100 are fixed to the circuit board 310 in three columns, as illustrated in the figure. Each column contains three power components 100 arranged in a 3x3 array on the circuit board 310. Furthermore, three first electrode plates 320 are electrically connected to the aforementioned power components 100. Each first electrode plate 320 is electrically connected to the first terminal 121, second terminal 122, and third terminal 123 of the first terminal group 120 of the power components 100 in the same column. Three second electrode plates 340 are electrically connected to the power element 100, and each second electrode plate 340 is electrically connected to the eighth terminal 128 and the ninth terminal 129 of the first terminal group 120 of the power element 100 in the same column. Three third electrode plates 330 are also electrically connected to the power element 100, and each third electrode plate 330 is electrically connected to the fourth terminal 124, the fifth terminal 125, the sixth terminal 126 and the seventh terminal 127 of the first terminal group 120 of the power element 100 in the same column.

[0091] In some embodiments, the three third electrode plates 330 are AC output electrodes, each outputting three-phase current; however, this invention is not limited to this. The three first electrode plates 320, the three second electrode plates 340, and the three third electrode plates 330 are DC positive input electrodes, DC negative input electrodes, and AC output electrodes, respectively, and their positions can be adjusted as needed, all without departing from the spirit and protection scope of this invention.

[0092] Furthermore, in this embodiment, multiple conductive posts 315 pass through corresponding circuit boards 310 to electrically connect the third electrode plate 330 and the power component 100 soldered to the fourth terminal 124, fifth terminal 125, sixth terminal 126, and seventh terminal 127 of the third conductive pad 314. Additionally, the first electrode plate 320, first terminal 121, second terminal 122, and third terminal 123 are soldered to the first conductive pad 312, so that the first electrode plate 320 is electrically connected to the first terminal 121, second terminal 122, and third terminal 123. Furthermore, the eighth terminal 128, ninth terminal 129, and second electrode plate 340 are soldered to the second conductive pad 316, so that the eighth terminal 128 and ninth terminal 129 are electrically connected to the second electrode plate 340.

[0093] In some embodiments, each power element 100 can provide, for example, 200 to 300 amps of current, so that each row of power elements 100 can provide 600 to 900 amps of current to provide the current output required by the three-phase power module.

[0094] Further reading Figure 4 As shown in the figure, in this embodiment, multiple power components 100 are fixed to the circuit board 410 in three columns, as shown in the figure. Each column contains two power components 100, arranged in a 3*2 array on the circuit board 410. Furthermore, three first electrode plates 420 are electrically connected to the aforementioned power components 100. Each first electrode plate 420 is electrically connected to the first terminal 121, second terminal 122, and third terminal 123 of the first terminal group 120 of the power components 100 in the same column. Three second electrode plates 440 are electrically connected to the power element 100, and each second electrode plate 440 is electrically connected to the eighth terminal 128 and the ninth terminal 129 of the first terminal group 120 of the power element 100 in the same column. Three third electrode plates 430 are also electrically connected to the power element 100, and each third electrode plate 430 is electrically connected to the fourth terminal 124, the fifth terminal 125, the sixth terminal 126 and the seventh terminal 127 of the first terminal group 120 of the power element 100 in the same column.

[0095] In some embodiments, the three third electrode plates 430 are AC output electrodes, each outputting three-phase current; however, this invention is not limited to this. The three first electrode plates 420, the three second electrode plates 440, and the three third electrode plates 430 are DC positive input electrodes, DC negative input electrodes, and AC output electrodes, respectively, and their positions can be adjusted as needed, all without departing from the spirit and protection scope of this invention.

[0096] Furthermore, in this embodiment, multiple third conductive posts 415 pass through the corresponding circuit boards 410 to electrically connect the third electrode plate 430 and the power element 100 soldered to the fourth terminal 124, fifth terminal 125, sixth terminal 126 and seventh terminal 127 of the third conductive pad 414.

[0097] Furthermore, the first terminal 121, the second terminal 122, and the third terminal 123 are soldered to the first conductive pad 412, and are electrically connected to the first electrode plate 420 via the first conductive post 413 passing through the circuit board 410, so that the first electrode plate 420 is electrically connected to the first terminal 121, the second terminal 122, and the third terminal 123. Additionally, the eighth terminal 128 and the ninth terminal 129 are soldered to the second conductive pad 416, and are electrically connected to the second electrode plate 440 via the second conductive post 417 passing through the circuit board 410, so that the eighth terminal 128 and the ninth terminal 129 are electrically connected to the second electrode plate 440.

[0098] In this embodiment, each power element 100 can provide, for example, 200 to 300 amps of current, so each row of power elements 100 can provide 400 to 600 amps of current to provide the current output required by the three-phase power module.

[0099] Further reading Figure 5 As shown in the figure, the power module 500 is equipped with multiple power components 100. In addition, the power module 500 also includes a water-cooled heat sink 510 and multiple mounting posts 520. The mounting posts 520 are installed between the circuit board 310 and the water-cooled heat sink 510 to support the circuit board 310. The upper surface of the power components 100 can be connected to the water-cooled heat sink 510 by soldering or using a thermal interface material, effectively dissipating heat when the power components 100 are operating, thereby improving the efficiency of the power module 500.

[0100] In summary, the power element disclosed in this utility model can provide the required single-phase or three-phase current according to actual needs, thereby providing three-phase current output to the power module. Furthermore, the power module can be equipped with multiple power elements to provide the required three-phase AC output. In addition, the power module can directly fix the water-cooled heat sink to the surface of the power chip, effectively improving the heat dissipation efficiency of the power module.

[0101] Although the present disclosure has been described above with reference to embodiments, it is not intended to limit the present disclosure. Any person skilled in the art may make various modifications and refinements without departing from the spirit and scope of the present disclosure. Therefore, the scope of protection of the present disclosure shall be determined by the appended claims.

Claims

1. A power element, characterized in that, Include: one body; A first terminal group is connected to one side of the body; and A second terminal group is connected to the other side of the body, wherein the first terminal group contains nine terminals and the second terminal group contains eight terminals, wherein the nine terminals of the first terminal group include terminals of various widths.

2. The power element as described in claim 1, characterized in that, The first terminal group is divided into a first terminal group, a second terminal group, a third terminal group, and a fourth terminal group in sequence. Each of the first terminal group, the second terminal group, and the third terminal group is composed of two terminals with different widths.

3. The power element as described in claim 1, characterized in that, The total cross-sectional area of ​​the first terminal, the second terminal, and the third terminal of the first terminal group is equal to the total cross-sectional area of ​​the eighth terminal and the ninth terminal of the first terminal group.

4. The power element as described in claim 2, characterized in that, The second, fourth, and sixth terminals of the first terminal group have the same width, and the third, fifth, and seventh terminals of the first terminal group have the same width.

5. The power element as described in claim 4, characterized in that, The distance between the third terminal and the fourth terminal of the first terminal group is equal to the distance between the fifth terminal and the sixth terminal, and equal to the distance between the seventh terminal and the eighth terminal.

6. The power element as described in claim 5, characterized in that, The distance between the third terminal and the fourth terminal of the first terminal group is equal to the height from the upper surface of the third terminal to the upper surface of the body.

7. The power element as claimed in claim 1, characterized in that, When the power element is a three-phase power element, the first terminal of the first terminal group is an open terminal.

8. A power module, characterized in that, Include: A circuit board; Multiple power components as described in claim 1 are fixed to the circuit board in three columns; Three first electrode plates, each first electrode plate being electrically connected to the first terminal group of the first terminal group of the power elements in the same column; Three second electrode plates, each of which is electrically connected to the fourth terminal group of the first terminal group of the power elements in the same column; as well as Three third electrode plates, each of which is electrically connected to the second and third terminal groups of the first terminal group of the power elements in the same column.

9. The power module as described in claim 8, characterized in that, Also includes: Multiple conductive posts pass through the circuit board to electrically connect the third electrode plates and the second and third terminal groups of the power components.

10. The power module as described in claim 9, characterized in that, Also includes: A water-cooled radiator to which the upper surfaces of the power components are fixed.

11. A power element, characterized in that, Include: one body; A first terminal group is connected to one side of the body; and A second terminal group is connected to the other side of the body, wherein the first terminal group contains eight terminals and the second terminal group contains eight terminals, wherein the eight terminals of the first terminal group include terminals of various widths.

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