TWM643291U - Programmable alternating current power box, inverter structure, structure for direct current converted into alternating current and heat dissipation base plate - Google Patents

Abstract

This work is a program-controlled AC power supply case, including a radiator, a first pair of passive components, a press-fit busbar and an insulated gate bipolar transistor (IGBT). The heat sink has a substrate; a first pair of passive components is mounted on the substrate for storing electric energy; a press-fit busbar is mounted on the first pair of passive components for receiving high-voltage direct current (HVDC) and the first pair of passive components stores the electric energy; and an insulated gate bipolar transistor is mounted on the substrate and electrically connected to the press-fit busbar for extracting the electric energy from the first pair of passive components to generate alternating current.

Description

Program-controlled AC power supply chassis, inverter structure, DC to AC structure and heat dissipation substrate

This work is a program-controlled AC power supply box, an inverter structure and a heat dissipation substrate, especially a program-controlled AC power supply box that uses a flow guide device to guide the flow of hot air.

As far as the general High Voltage Direct Current (HVDC) is concerned (that is, the high-voltage direct current transmission system), in the case of long-distance power transmission, the high-voltage direct current transmission has large transmission power and small losses, so the cost is relatively low. When receiving the power transmitted by the high-voltage direct current transmission, it is necessary to use a programmable (Programmable) AC power supply chassis (ie, an inverter). At present, in order to achieve high-efficiency and low-loss current conduction and shunting of inverters, laminated busbars have been widely used. It not only solves the original problem of stray inductance effects, but also because of the compactness of two copper busbars (or called copper busbars, composite busbars, laminated busbars, busbars, busbars, etc.), small capacitance can be obtained in the line, and high-frequency harmonics can be absorbed. At the same time, the processing time of the original multi-piece combination is improved, the production efficiency is improved, and the wrong installation can be completely avoided.

In addition, by covering the insulating material of the mother copper bar, it can improve the risk of contact or creepage (snapshot) caused by the large exposed area of the previous mother copper bar, and greatly reduce the loss of the capacitance area of the surface oxidation caused by the previous exposure. With the compact design of the laminated busbars and the ingenious use of the design of the panel surface, the space occupied by the product can be effectively and greatly reduced. In addition, the stacked busbars can be directly connected to multiple sets of continuous parallel connections at the DC terminals, which is very convenient for three-phase or multiple sets of parallel connections. However, the inverter has been equipped with a radiator and ventilation device, but its heat dissipation efficiency is not ideal. Therefore, it is really necessary to further improve the existing heat dissipation mode.

For this reason, the applicant, in view of the lack of an effective heat dissipation mode in the conventional AC power supply case, after careful testing and research, and a persistent spirit, finally conceived this creation, which can overcome the shortcomings of the conventional technology. The following is a brief description of this creation.

The program-controlled AC power supply chassis of this invention installs the first pair of energy storage elements on the substrate of the radiator, and uses the installation of a flow guide device to improve the heat dissipation efficiency of the inverter.

This work is a program-controlled AC power supply case, including a radiator, a first pair of passive components, a press-fit busbar and an insulated gate bipolar transistor (IGBT). The heat sink has a substrate; a first pair of passive components is mounted on the substrate for storing electric energy; a press-fit busbar is mounted on the first pair of passive components for receiving high-voltage direct current (HVDC) so that the first pair of passive components stores the electric energy; and an insulated gate bipolar transistor is mounted on the substrate and electrically connected to the press-fit busbar for extracting the electric energy from the first pair of passive components to generate an alternating current.

According to other possible viewpoints, this invention also discloses an inverter structure, including a substrate, a first pair of energy storage elements, a plurality of mother copper bars, an electric energy receiving element, and a current guiding device. The first pair of energy storage elements is installed on the substrate to store electric energy; a plurality of female copper bars are installed on the first pair of energy storage elements to receive DC power to store the electric energy; the electric energy receiving element is installed on the substrate and electrically connected to the plurality of female copper bars for extracting the electric energy from the first pair of energy storage elements to generate alternating current and simultaneously generate hot gas;

The invention can also be a structure for converting direct current to alternating current, including a power receiving substrate, a first pair of energy storage elements, a press-fit conductive device and an electric energy receiving element. The first pair of energy storage elements is installed on the substrate to store electric energy; the press-fit conductive device is installed on the first pair of energy storage elements to receive direct current transmission to make the first pair of energy storage elements store the electric energy; and the power receiving element is installed on the substrate and electrically connected to the press-fit conductive device for extracting the electric energy from the first pair of energy storage elements to generate alternating current.

The invention is also a power supply box, including a base plate, a first pair of energy storage elements, a fixed structure, an electric energy conversion element and a positioning conductive device. The substrate has a surface; the first pair of energy storage elements is used to store electric energy and has a first pair of electrodes; the fixed structure directly installs the first pair of energy storage elements on the surface; the electric energy conversion element is installed on the substrate and has a second pair of electrodes;

The invention is a heat dissipation substrate for a power supply case, which includes a first surface and a second opposite surface. The first surface is provided with a heat dissipation device; and the second opposite surface is provided with a first pair of energy storage elements for storing an electric energy, and has a first plurality of pairs of electrodes; and a fixing structure, the first pair of energy storage elements are directly installed on the second opposite surface.

10: Program-controlled AC power chassis

11: Ventilation device

21: Radiator

221: The first pair of passive components

23: Compression busbar

24: Substrate

251: The first capacitor

252: second capacitor

26: heat sink

27: Driver circuit board

31: Insulated gate bipolar transistor

42: The second pair of passive components

43: Substrate

53: The third pair of passive components

54: Substrate

60: diversion tube

61,62: end

63: heat sink

71: The first conductive plate

711: Positive input terminal

712: Positive energy storage terminal

72: Second conductive plate

721: Negative input terminal

722: Negative energy storage terminal

73: The third conductive plate

731: positive series terminal

732: Negative series terminal

741: first insulating layer

742: second insulating layer

743: The third insulating layer

744: The fourth insulating layer

81: Positive output terminal

82: Negative output terminal

90: fixed frame

91: heat sink

92: Radiator

93: Electric energy conversion components

94: surface

951: first surface

101: The first pair of positive electrodes

102: the second pair of negative electrodes

The first figure: is the rear view schematic diagram of the overall structure of the preferred embodiment of the program-controlled AC power supply cabinet of this creation;

The second picture: is a three-dimensional schematic diagram of the radiator, the first pair of passive components, the press-fit busbar and the insulated gate bipolar transistor installed inside the chassis in the first picture;

Figure 3: It is a schematic side view showing the installation position of the IGBT in Figure 2;

Figure 4: It is another three-dimensional schematic diagram of the heat sink, the first pair of passive components, the press-fit busbar and the IGBT installed inside the chassis in the first figure;

Figure 5: It is another three-dimensional schematic diagram of the heat sink, the first pair of passive components, the press-fit busbar and the IGBT installed inside the chassis in the first figure;

Figure 6: It is a three-dimensional schematic diagram when the diversion tube and heat sink installed above the fifth figure are exploded;

The seventh picture: is the three-dimensional schematic diagram of the bursting of the press-fit busbar in the second picture;

Figure 8: It is a three-dimensional schematic diagram of the press-fit busbar in Figure 7;

Figure 9: It is a three-dimensional exploded perspective view of the radiator, three pairs of passive components, press-fit busbars and IGBT in Figure 5; and

Figure 10: is an exploded perspective view showing the position of the electrodes of the IGBT in Figure 5 .

In order to improve the heat dissipation effect of the inverter, the program-controlled AC power supply chassis proposed in this creation uses the flow guide device installed above the radiator to improve its heat dissipation efficiency. Please refer to the first figure, which shows a program-controlled AC power supply cabinet 10 with four ventilation devices 11. The program-controlled AC power supply cabinet 10 includes a radiator 21 as shown in the second figure, a first pair of passive components 221, a press-fit busbar 23 and an insulated gate bipolar transistor (IGBT) 31 as shown in the third figure. The radiator 21 has a substrate 24; the first pair of passive components 221 is installed on the substrate 24 to store electrical energy; the maternal row 23 is installed on the first pair of passive components 221 to receive high -voltage DC transmission (HVDC) to store the power of the first pair of passive components 221; and the insulation grid bipolar electrical crystal 31 is installed on the substrate 24 and connected to the pierced maternal discharge 2 2 3. It is used to extract the power from the first pair of passive components 221 to generate AC power.

In addition, the heat sink 21 is equipped with a plurality of cooling fins 26 for dissipating heat from the IGBT 31 and forming hot gas on the plurality of cooling fins 26 . The program-controlled AC power supply case 10 further includes a driving circuit board 27 electrically connected to the IGBT 31 for driving the IGBT 31 .

In the foregoing embodiments, the first pair of passive components 221 of the program-controlled AC power supply chassis 10 has a first capacitor 251 and a second capacitor 252, the first capacitor The capacitor 251 is connected in series to the second capacitor 252 . In another embodiment, the programmable AC power supply case 10 may include a second pair of passive components 42 as shown in FIG. 4 , which are connected in parallel with the first pair of passive components 221 and installed on the substrate 43 . The laminated busbars 23 are laminated busbars.

In the foregoing embodiments, the program-controlled AC power supply case 10 further includes a third pair of passive components 53 as shown in FIG. 5, and a flow guide tube 60 as shown in FIG.

In the foregoing embodiments, the press-fit busbar 23 of the programmable AC power supply chassis 10 has a first conductive plate 71, a second conductive plate 72, and a third conductive plate 73 as shown in FIG. 31 and the negative series terminal 732. The positive input end 711 and the negative input end 721 are used for the transmission power of the high-voltage direct current transmission. The positive energy storage end 712 of the first conductive plate 71 is connected to the positive electrode of the first capacitor 251, the negative energy storage end 722 of the second conductive plate 72 is connected to the negative electrode of the second capacitor 252, the positive electrode series terminal 731 of the third conductive plate 73 is connected to the positive electrode of the second capacitor 252, and the negative electrode series end 732 of the third conductive plate 73 is connected to the negative electrode of the first capacitor 251. pole, and the positive output terminal 81 and the negative output terminal 82 are connected to the positive pole and the negative pole of the IGBT 31 respectively.

In the foregoing embodiments, the press-fit busbar 23 of the program-controlled AC power supply chassis 10 has a first insulating layer 741, a second insulating layer 742, a third insulating The layer 743 and the fourth insulating layer 744 , the first insulating layer 741 and the second insulating layer 742 are used to cover the first conductive plate 71 , and the third insulating layer 743 and the fourth insulating layer 744 are used to cover the second conductive plate 72 and the third conductive plate 73 . Certainly, the second insulating layer 742 and the third insulating layer 743 can also be combined to be simplified into one layer.

In the foregoing embodiments, the material of the press-fit busbar 23 may be red copper.

According to other possible viewpoints, this work also discloses an inverter structure (for example: the program-controlled AC power supply chassis 10), including a substrate 24, a first pair of energy storage elements (for example: the first pair of passive elements 221), a plurality of busbars (for example: press-fit busbars 23), a power receiving element (for example: insulated gate bipolar transistor 31) and a current guiding device (for example: the conduction tube 60). The first pair of energy storage elements is installed on the substrate to store electric energy; a plurality of female copper bars are installed on the first pair of energy storage elements to receive direct current transmission and make the first pair of energy storage elements store the electric energy; the electric energy receiving element is installed on the substrate and electrically connected to the plurality of female copper bars for extracting the electric energy from the first pair of energy storage elements to generate alternating current and simultaneously generate hot gas; and a flow guide device is installed above the substrate to guide the flow of hot air

In the foregoing embodiments, the inverter structure further includes a fixing frame 90 as shown in FIG. 9 , wherein the first pair of energy storage elements are mounted on the base plate 54 by using the fixing frame 90 , and the base plate 54 is further equipped with a plurality of cooling fins 91 to form a heat sink 92 .

This creation can also be a structure for converting direct current into alternating current (for example: program-controlled AC power supply chassis 10), including a power receiving substrate (for example: substrate 24), a first pair of energy storage elements (for example: a first pair of passive elements 221), press-fit conductive devices (for example: press-fit busbars 23 ) and power receiving elements (for example: insulated gate bipolar transistors 31 ). The first pair of energy storage elements is installed on the substrate 24 for storing electric energy; the press-fit conductive device is installed on the first pair of energy storage elements for receiving DC transmission to make the first pair of energy storage elements store the electric energy; and the power receiving element is installed on the substrate 24 and electrically connected to the press-fit conductive device for extracting the electric energy from the first pair of energy storage elements to generate alternating current.

In the aforementioned embodiments, the direct current transmission in this structure is a high voltage direct current transmission, and there is no voltage limit of 380V (volts) at the lowest, but the highest voltage should be only about thousands of volts.

This technology is mainly a power supply box (for example: program-controlled AC power supply box 10), including a substrate 54, a first pair of energy storage elements (for example: a first pair of passive elements 221), a fixing structure (for example: a fixing frame 90), an electric energy conversion element 93 and a positioning conductive device (for example: a press-fit busbar 23). The substrate 54 has a surface 94; the first pair of energy storage elements (for example: the first pair of passive elements 221) are used to store electric energy, and have the first two pairs of electrodes (the first pair of capacitors has two pairs of electrodes); the fixed structure directly installs the first pair of energy storage elements on the surface 94; the electric energy conversion element 93 is installed on the substrate 54 and has the second two pairs of electrodes (i.e. the first pair of positive electrodes 101 and the second pair of negative electrodes 102 of the electric energy conversion element 93) as shown in the tenth figure; The first two pairs of electrodes and the second two pairs of electrodes 101, 102 are positioned and electrically connected to complete electric energy conversion.

The present invention can also be a heat dissipation substrate 54 for a power chassis, including a first surface 951 and a second opposite surface (for example: surface 94 ). The first surface 951 is provided with a heat dissipation device (for example: heat sink 91); and the second opposite surface is provided with a first pair of energy storage elements (for example: the first pair of passive elements 221) thereon for storing electric energy, and has the first two pairs of electrodes; In addition to using a single program-controlled AC power supply box 10 in this creation, multiple power supply boxes can also be used at the same time, and multiple boxes can be connected in series with each other.

To sum up, this creation can indeed use a new design to install the first pair of energy storage elements on the base plate of the heat sink, which can store energy smoothly, and skillfully use the flow guide device installed on the heat sink to effectively improve the heat dissipation efficiency of the inverter. Therefore, those who are familiar with this technique can make various modifications according to Shi Jiang's thinking, but none of them will escape the protection intended by the scope of the attached patent application.

21: Radiator

221: The first pair of passive components

23: Compression busbar

24: Substrate

251: The first capacitor

252: second capacitor

26: heat sink

27: Driver circuit board

Claims (11)

A program-controlled AC power supply box, comprising: A heat sink has a base plate; a first pair of passive elements installed on the substrate for storing an electric energy; a press-fit busbar, mounted on the first pair of passive components, for receiving a high voltage direct current (HVDC) and enabling the first pair of passive components to store the electrical energy; and An insulated gate bipolar transistor (IGBT) is mounted on the substrate and electrically connected to the press-fit busbar for extracting the electric energy from the first pair of passive elements to generate an alternating current. The program-controlled AC power supply box as described in claim 1, wherein the first pair of passive components has a first capacitor and a second capacitor, the first capacitor is connected in series to the second capacitor, and the program-controlled AC power supply box further includes a second pair of passive components connected in parallel with the first pair of passive components and installed on the substrate, and the press-fit busbar is a laminated busbar. The program-controlled AC power supply chassis as described in claim 2 further includes a third pair of passive components, a duct and a ventilation device, wherein the third pair of passive components is connected in parallel with the second pair of passive components and is installed on the substrate. The radiator is equipped with a plurality of cooling fins to allow the insulated gate bipolar transistor to dissipate heat, and a hot gas is formed on the plurality of cooling fins, and the two ends of the diversion tube are respectively connected to the plurality of cooling fins and the ventilation device. The program-controlled AC power supply chassis as described in claim 3, wherein the press-fit busbar has a first conductive plate, a second conductive plate and a third conductive plate plate, the first conductive plate has a positive input terminal, a positive energy storage terminal and a positive output terminal, the second conductive plate has a negative input terminal, a negative energy storage terminal and a negative output terminal, the third conductive plate has a positive series terminal and a negative series terminal, the positive input terminal and the negative input terminal are used for the transmission power of the high-voltage direct current transmission, the positive energy storage terminal of the first conductive plate is connected to the positive terminal of the first capacitor, and the negative energy storage terminal of the second conductive plate connected to a negative pole of the second capacitor, the positive series terminal of the third conductive plate is connected to a positive pole of the second capacitor, the negative series terminal of the third conductive plate is connected to a negative pole of the first capacitor, and the positive output terminal and the negative output terminal are respectively connected to a positive pole and a negative pole of the insulated gate bipolar transistor. The program-controlled AC power supply chassis as described in claim 4, wherein the press-fit busbar has a first insulating layer, a second insulating layer, a third insulating layer, and a fourth insulating layer, the first insulating layer and the second insulating layer are used to cover the first conductive plate, and the third insulating layer and the fourth insulating layer are used to cover the second conductive plate and the third conductive plate. The program-controlled AC power supply case described in claim 1 further includes a driving circuit board electrically connected to the IGBT for driving the IGBT, and the press-fit busbar is made of copper. An inverter structure, comprising: a substrate; a first pair of energy storage elements installed on the substrate for storing an electric energy; A plurality of female copper bars are installed on the first pair of energy storage elements for receiving a DC power transmission so that the first pair of energy storage elements store the electric energy; An electric energy receiving element, installed on the substrate and electrically connected to the plurality of female copper bars, is used to extract the electric energy from the first pair of energy storage elements to generate an alternating current and simultaneously generate a hot gas; and A flow guiding device is installed above the base plate to guide the flow of the hot gas. The inverter structure as described in claim 7 further includes a fixing frame, wherein the first pair of energy storage elements are installed on the substrate by using the fixing frame, and the substrate is further equipped with a plurality of cooling fins to form a heat sink. A structure for converting direct current to alternating current, comprising: A power receiving substrate; a first pair of energy storage elements installed on the substrate for storing an electric energy; A press-fit conductive device, installed on the first pair of energy storage elements, is used to receive a direct current transmission and make the first pair of energy storage elements store the electric energy; and An electric energy receiving element is installed on the substrate and electrically connected to the press-fit conductive device for extracting the electric energy from the first pair of energy storage elements to generate an alternating current. A power supply box, comprising: a substrate having a surface; a first pair of energy storage elements for storing an electric energy, and having a first pair of plural electrodes; a fixed structure for mounting the first pair of energy storage elements directly on the surface; An electric energy conversion element is mounted on the substrate and has a second plurality of pairs electrodes; and A positioning conductive device is used for positioning and electrically connecting the first pair of electrodes and the second pair of electrodes to complete electric energy conversion. A heat dissipation substrate for a power supply case, comprising: a first surface on which a heat sink is disposed; and A second opposing surface on which: a first pair of energy storage elements for storing electrical energy, and having a first plurality of pairs of electrodes; and A fixing structure, the first pair of energy storage elements are directly installed on the second opposite surface.

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