Embedded power supply

Abstract

The utility model discloses an embedded power supply, comprising an AC power distribution unit, a rectification unit and an output unit, the rectification unit comprises a backboard and a rectification module, the backboard comprises a connection terminal and an AC-DC module, the AC power distribution unit receives a single-phase AC and transmits the received single-phase AC to the connection terminal, and the output unit outputs the single-phase AC to the connection terminal. The connection terminal transmits the received single-phase alternating current to the rectification module and the AC-DC module, the rectification module converts the single-phase alternating current into first direct current, the AC-DC module converts the single-phase alternating current into second direct current, the second direct current comprises effective direct current and ineffective direct current, and the first direct current and the second direct current are connected through the connection terminal. The connection terminal transmits the first direct current and the second direct current to the output unit, the first direct current is used for providing electric energy for the outside, and the second direct current is used for representing whether the single-phase alternating current is abnormal or not, so that the embedded power supply provided by the embodiment of the utility model provides the electric energy for the outside, and meanwhile, improves the reliability. And a signal indicating whether the single-phase alternating current is abnormal or not can be provided, so that the reliability of the embedded power supply is improved.

Description

Technical Field

[0001] This utility model relates to the field of power supply technology, and in particular to an embedded power supply. Background Technology

[0002] With the continuous development of communication power supply technology, miniaturization and improved reliability of embedded power supplies have become the development trend of communication power supplies.

[0003] In existing embedded power supplies, when the AC power input to the embedded power supply fails, the embedded power supply cannot output DC power to provide power to the load, and the load stops working. Since the cause of the load stopping can be a power supply failure or a fault in the load itself, it is impossible to determine whether the load stoppage is due to a fault in the DC power output of the embedded power supply or a fault in the load itself.

[0004] In summary, determining whether the AC power input of an embedded power supply is faulty is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] This invention provides an embedded power supply to solve the problem of low reliability of embedded power supplies in the prior art.

[0006] This utility model provides an embedded power supply, including: an AC power distribution unit, a rectifier unit, and an output unit, wherein the rectifier unit includes a backplane and a rectifier module, and the backplane includes connection terminals and an AC-DC module;

[0007] The AC power distribution unit is used to receive single-phase AC power;

[0008] The rectifier module is used to convert the received single-phase alternating current into a first direct current.

[0009] The AC-DC module is used to convert the received single-phase alternating current into a second direct current, wherein the second direct current includes valid direct current and invalid direct current;

[0010] The connection terminal is electrically connected to the AC power distribution unit, the AC-DC module, the rectifier module and the output unit, and is used to receive single-phase AC power output by the AC power distribution unit, transmit the single-phase AC power to the AC-DC module and the rectifier module, and output the first DC power and the second DC power to the output unit.

[0011] The output unit is used to output the first DC power and the second DC power, wherein the first DC power is used to provide power to the outside, and the second DC power is used to characterize whether the single-phase AC power is abnormal.

[0012] In one possible implementation, the AC-DC module is specifically used for:

[0013] When the effective voltage value of the single-phase alternating current is less than or equal to the preset voltage value, invalid direct current is output.

[0014] When the effective voltage value of the single-phase alternating current is greater than the preset voltage value, an effective direct current is output.

[0015] The invalid DC power is used to characterize the single-phase AC power as abnormal, while the valid DC power is used to characterize the single-phase AC power as normal.

[0016] In one possible implementation, the first input terminal of the AC-DC module is electrically connected to the first terminal of the connection terminal, and the first terminal of the connection terminal is also electrically connected to the first input terminal of the rectifier module.

[0017] The second input terminal of the AC-DC module is electrically connected to the second terminal of the connection terminal, and the second terminal of the connection terminal is also electrically connected to the second input terminal of the rectifier module;

[0018] The first output terminal of the AC-DC module is electrically connected to the third terminal of the connection terminal;

[0019] The second output terminal of the AC-DC module is electrically connected to the fourth terminal of the connection terminal;

[0020] The first and second ends of the connection terminal are used to transmit the single-phase alternating current, and the third and fourth ends of the connection terminal are used to transmit the second direct current.

[0021] In one possible implementation, the backplane further includes a first resistor;

[0022] The first resistor is connected between the first input terminal and the second input terminal of the AC-DC module.

[0023] In one possible implementation, the backplane further includes a first capacitor;

[0024] The first capacitor is connected between the first input terminal of the AC-DC module and the second input terminal of the AC-DC module.

[0025] In one possible implementation, the backplane further includes a second capacitor;

[0026] The second capacitor is connected between the first output terminal and the second input terminal of the AC-DC module.

[0027] In one possible implementation, the fifth terminal of the connection terminal is electrically connected to the first output terminal of the rectifier module, and the sixth terminal of the connection terminal is electrically connected to the second output terminal of the rectifier module, wherein the fifth terminal and the sixth terminal of the connection terminal are used to transmit the first DC power.

[0028] The seventh terminal of the connection terminal serves as the first communication terminal of the embedded power supply and is electrically connected to the first communication terminal of the rectifier module. The eighth terminal of the connection terminal serves as the second communication terminal of the embedded power supply and is electrically connected to the second communication terminal of the rectifier module.

[0029] In one possible implementation, the connection terminal includes a first connection terminal, a second connection terminal, and a third connection terminal;

[0030] The first connection terminal includes a first end and a second end of the connection terminal;

[0031] The second connection terminal includes a third end, a fourth end, a seventh end, and an eighth end.

[0032] The second connection terminal includes a fifth end and a sixth end of the connection terminal.

[0033] In one possible implementation, the first connection terminal, the second connection terminal, and the third connection terminal are all through-hole terminals.

[0034] In one possible implementation, the backplane further includes a gold finger connector;

[0035] The gold finger connector is used to transmit the single-phase AC power output from the first and second terminals of the connection terminal to the rectifier module and the AC-DC module, to transmit the first DC power output from the rectifier module to the fifth and sixth terminals of the connection terminal, and to transmit communication signals to the seventh and eighth terminals of the connection terminal.

[0036] The beneficial effects of this utility model are as follows:

[0037] The embedded power supply provided in this embodiment includes an AC power distribution unit, a rectifier unit, and an output unit. The rectifier unit includes a backplane and a rectifier module. The backplane includes connection terminals and an AC-DC module. The AC power distribution unit receives single-phase AC power and transmits it to the connection terminals. The connection terminals transmit the received single-phase AC power to the rectifier module and the AC-DC module. The rectifier module, upon receiving the single-phase AC power, converts it into a first DC power and outputs the first DC power to the connection terminals. The AC-DC module, upon receiving the single-phase AC power, converts it into a second DC power and outputs the second DC power to the connection terminals. The second DC power includes valid DC power and invalid DC power. The connection terminals transmit the first and second DC power to the output unit. Since the first DC power is used to provide power to the outside, and the second DC power is used to provide a voltage signal to detect whether the single-phase AC power is abnormal, the embedded power supply provided in this embodiment can provide power to the outside while also outputting a voltage signal indicating whether the single-phase AC power is abnormal, thereby improving the reliability of the embedded power supply. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 A schematic diagram of an embedded power supply provided in an embodiment of this utility model;

[0040] Figure 2 A schematic diagram of the structure of a rectifier unit provided in an embodiment of this utility model;

[0041] Figure 3 A schematic diagram of the structure of a back plate provided in an embodiment of this utility model;

[0042] Figure 4 This is a schematic diagram of another rectifier unit provided in an embodiment of the present invention;

[0043] Figure 5 This is a schematic diagram of another backplate provided in an embodiment of the present utility model;

[0044] Figure 6 A schematic diagram of the gold finger connector in the backplate provided in an embodiment of this utility model;

[0045] Figure 7 This is a schematic diagram of another backplate provided in an embodiment of the present utility model;

[0046] Figure 8 This is a schematic diagram showing the connection of multiple rectifier units provided in an embodiment of the present invention. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0048] This utility model provides an embedded power supply, which includes an AC power distribution unit, a rectifier unit, and an output unit. The rectifier unit includes a backplane and a rectifier module. The backplane includes connection terminals and an AC-DC module. The AC power distribution unit receives single-phase AC power and transmits it to the connection terminals. The connection terminals transmit the received single-phase AC power to the rectifier module and the AC-DC module. The rectifier module, upon receiving the single-phase AC power, converts it into a first DC power and outputs the first DC power to the connection terminals. The AC-DC module, upon receiving the single-phase AC power, converts it into a second DC power and outputs the second DC power to the connection terminals. The second DC power includes valid and invalid DC power. The connection terminals transmit the first and second DC power to the output unit. Since the first DC power is used to provide power to the external system, and the second DC power is used to provide a voltage signal to detect whether the single-phase AC power is abnormal, the embedded power supply provided in this embodiment can detect single-phase AC power while providing power to the external system, thereby improving the reliability of the embedded power supply.

[0049] like Figure 1 The diagram shown is a structural schematic of an embedded power supply provided in an embodiment of this utility model. Figure 2 The diagram shown is a structural schematic of the rectifier unit provided in an embodiment of this utility model. Figure 1 and Figure 2 As shown, the embedded power supply provided in this embodiment of the present invention includes: an AC power distribution unit 11, a rectifier unit 12 and an output unit 13, wherein the rectifier unit 12 includes a backplate 121 and a rectifier module 122, and the backplate 121 includes a connection terminal 1211 and an AC-DC module 1212.

[0050] AC power distribution unit 11 is used to receive single-phase AC power;

[0051] The rectifier module 122 is used to convert the received single-phase alternating current into a first direct current.

[0052] AC-DC module 1212 is used to convert received single-phase alternating current into a second direct current, wherein the second direct current includes valid direct current and invalid direct current;

[0053] The connection terminal 1211 is electrically connected to the AC power distribution unit 11, the AC-DC module 1212, the rectifier module 122 and the output unit 13, and is used to receive the single-phase AC power output by the AC power distribution unit 11, transmit the single-phase AC power to the AC-DC module 1212 and the rectifier module 122, and output the first DC power and the second DC power to the output unit 13.

[0054] Output unit 13 is used to output a first DC power and a second DC power, wherein the first DC power is used to provide power to the outside, and the second DC power is used to characterize whether the single-phase AC power is abnormal.

[0055] In this embodiment, the connection terminal 1211 outputs a first DC power to the output unit 13, and the output unit 13 outputs the first DC power to an external electrical device, which can be a load. The output unit 13 provides the first DC power to the load to provide power to the load. The connection terminal 1211 outputs a second DC power to the output unit 13, and the output unit 13 outputs the second DC power to an external processing device. For example, the output unit 13 sends the second DC power to an external processor, controller, or monitoring unit. When the second DC power is invalid, the processor, controller, or monitoring unit determines that the single-phase AC power input to the embedded power supply is abnormal, or in other words, there is a single-phase AC power failure, based on the received invalid DC power. When the second DC power is valid, the processor, controller, or monitoring unit determines that the single-phase AC power input to the embedded power supply is normal, based on the received valid DC power.

[0056] Once the processor, controller, or monitoring unit determines a single-phase AC power fault in the input to the embedded power supply, it can trigger an alarm to alert the user of the single-phase AC power fault.

[0057] It should be noted that the rectifier module 122 in this embodiment of the present invention can be referred to as a primary power supply module, and the AC-DC module 1212 can be referred to as a secondary power supply module.

[0058] In specific implementation, such as Figure 1 As shown, the AC power distribution unit 11 includes an AC terminal that is electrically connected to a single-phase AC power output terminal for receiving single-phase AC power; the output unit 13 includes a signal interface that is electrically connected to an external processing device for sending a second DC power to the external processing device.

[0059] The single-phase AC power in this embodiment of the invention can be 85-305Vac.

[0060] In one embodiment, after single-phase AC power is input to the AC-DC module 1212, if the effective voltage value of the single-phase AC power is less than or equal to a preset voltage value, the second DC power output by the AC-DC module 1212 is invalid DC power; if the effective voltage value of the single-phase AC power is greater than the preset voltage value, the second DC power output by the AC-DC module 1212 is valid DC power; wherein, invalid DC power is used to characterize an abnormality of the single-phase AC power, and valid DC power is used to characterize a normal single-phase AC power.

[0061] For example, when the effective voltage of a single-phase AC power is less than or equal to 85V, the AC-DC module 1212 outputs a low-level signal of 0V. When the effective voltage of a single-phase AC power is greater than 85V, the AC-DC module 1212 outputs a high-level signal of 5V. Both the 0V low-level signal and the 5V high-level signal are secondary DC power. The 0V low-level signal is an invalid DC power, and the 5V high-level signal is an effective DC power.

[0062] like Figure 3 The diagram shown is a structural schematic of a backplate provided in an embodiment of this utility model. Figure 4 The diagram shown is a structural schematic of a rectifier unit provided in an embodiment of this utility model. (Refer to...) Figure 3 and Figure 4 The first input terminal L of the AC-DC module 1212 is electrically connected to the first terminal of the connection terminal 1211, wherein the first terminal of the connection terminal 1211 is also electrically connected to the first input terminal of the rectifier module 122.

[0063] The second input terminal N of AC-DC module 1212 is electrically connected to the second terminal of connection terminal 1211, wherein the second terminal of connection terminal 1211 is also electrically connected to the second input terminal of rectifier module 122;

[0064] The first output terminal -VO of the AC-DC module 1212 is electrically connected to the third terminal OVAUX of the connection terminal 1211;

[0065] The second output terminal +VO of AC-DC module 1212 is electrically connected to the fourth terminal ACOK of connection terminal 1211;

[0066] The first and second ends of the connection terminal 1211 are used to transmit single-phase AC power, and the third and fourth ends of the connection terminal 1211 are used to transmit second-phase DC power.

[0067] The receiving single-phase AC power is transmitted from the connection terminal 1211 to the first input terminal L and the second input terminal N of the AC-DC module 1212. After receiving the single-phase AC power, the AC-DC module 1212 converts the single-phase AC power to obtain the second DC power. The first output terminal -VO and the second output terminal +VO of the AC-DC module 1212 output the second DC power to the third terminal OVAUX and the fourth terminal ACOK of the connection terminal 1211. The third terminal OVAUX and the fourth terminal ACOK of the connection terminal 1211 output the second DC power to the signal interface in the output unit 13. The signal interface in the output unit 13 outputs the second DC power to the outside.

[0068] In one embodiment, such as Figure 5 As shown, the backplate 121 also includes a first resistor R1;

[0069] The first resistor R1 is connected between the first input terminal L of the AC-DC module 1212 and the second input terminal N of the AC-DC module 1212.

[0070] In this embodiment of the utility model, the first resistor R1 serves as a lightning protection circuit, working in conjunction with the AC power supply system SPD to further reduce the residual voltage from lightning strikes in the circuit, thereby protecting the components in the circuit. Specifically, the first resistor R1 can be a varistor.

[0071] like Figure 5 As shown, the backplane 121 provided in this embodiment may further include a first capacitor C1;

[0072] The first capacitor C1 is connected between the first input terminal L of the AC-DC module 1212 and the second input terminal N of the AC-DC module 1212.

[0073] In this embodiment of the present invention, the first capacitor C1 acts as a filter to filter the single-phase AC power input to the first input terminal and the second input terminal of the AC-DC module 1212.

[0074] like Figure 5 As shown, the backplane 121 provided in this embodiment may further include a second capacitor C2;

[0075] The second capacitor C2 is connected between the first output terminal -VO of the AC-DC module 1212 and the second input terminal +VO of the AC-DC module 1212.

[0076] The second capacitor C2 in this embodiment of the present invention serves as a filter to filter the second DC current output from the first output terminal -VO and the second output terminal +VO of the AC-DC module 1212. The second capacitor C2 can be an electrolytic capacitor.

[0077] In one embodiment, such as Figure 4 As shown, the fifth terminal 1DC+ of the connection terminal 1211 is electrically connected to the first output terminal of the rectifier module 122, and the sixth terminal 1DC- of the connection terminal 1211 is electrically connected to the second output terminal of the rectifier module 122. The fifth terminal 1DC+ and the sixth terminal 1DC- of the connection terminal 1211 are used to transmit the first DC power.

[0078] The fifth terminal 1DC+ and the sixth terminal 1DC- of the connection terminal 1211 can output the first DC power output by the rectifier module 122 to the output unit 13.

[0079] The seventh terminal of the connection terminal 1211 serves as the first communication terminal CAN+ of the embedded power supply and is electrically connected to the first communication terminal of the rectifier module 122. The eighth terminal of the connection terminal 1211 serves as the second communication terminal CAN- of the embedded power supply and is electrically connected to the second communication terminal of the rectifier module 122.

[0080] The seventh and eighth terminals of the connection terminal 1211 are used to output communication information of the rectifier module 122, and can also input control commands to the rectifier module 122.

[0081] For example, when multiple embedded power supplies supply power to a single load, the rectifier modules 122 in the multiple embedded power supplies communicate via CAN through the seventh and eighth terminals of the connection terminal 1211 to achieve autonomous current sharing, meaning that each embedded power supply outputs the same current to the load.

[0082] For example, the seventh and eighth terminals of the embedded power supply's connection terminal 1211 are electrically connected to the host computer, and the host computer sends commands to the embedded power supply through the seventh and eighth terminals of the connection terminal 1211.

[0083] In this embodiment of the invention, the host computer can control or monitor the embedded power supply via CAN+ and CAN-.

[0084] In specific implementation, such as Figure 5 As shown, the connection terminal 1211 includes a first connection terminal J1, a second connection terminal J2, and a third connection terminal J3;

[0085] The first connection terminal J1 includes a first end of the connection terminal 1211 and a second end of the connection terminal 1211;

[0086] The second connection terminal J2 includes a third end, a fourth end, a seventh end, and an eighth end of the connection terminal 1211;

[0087] The third connection terminal J3 includes the fifth terminal of connection terminal 1211 and the sixth terminal of connection terminal 1211.

[0088] In one embodiment, the first connecting terminal J1, the second connecting terminal J2, and the third connecting terminal J3 are all through-hole terminals.

[0089] Specifically, refer to Figure 3 , Figure 4 and Figure 5 The first connection terminal J1 is used to transmit single-phase AC power. The first connection terminal J1 can be a 9-pin through-hole terminal. The first pin, the second pin and the third pin of the first connection terminal J1 are electrically connected to the ground terminal. The fourth pin, the fifth pin and the sixth pin of the first connection terminal J1 serve as the first end of the connection terminal 121. The seventh pin, the eighth pin and the ninth pin of the first connection terminal J1 serve as the second end of the connection terminal 121.

[0090] The second connection terminal J2 is used to transmit a second DC power to the outside and also serves as a communication terminal. The communication terminal is used to transmit communication signals between rectifier units. For example, multiple rectifier units can be electrically connected through the communication terminal to achieve capacity expansion. The second connection terminal J2 can be a 4-pin through-hole terminal, wherein the first pin of the second connection terminal J2 serves as the seventh terminal of the connection terminal 121, the second pin of the second connection terminal J2 serves as the eighth terminal of the connection terminal 121, the third pin of the second connection terminal J2 serves as the third terminal of the connection terminal 121, and the fourth pin of the second connection terminal J2 serves as the fourth terminal of the connection terminal 121.

[0091] The third connection terminal J3 is used to transmit the first DC power. The third connection terminal J3 can be an 8-pin through-hole terminal. The 1st, 2nd, 3rd and 4th pins of the third connection terminal J3 serve as the fifth terminal of the connection terminal 121, and the 5th, 6th, 7th and 8th pins of the third connection terminal J3 serve as the sixth terminal of the connection terminal 121.

[0092] In this embodiment, the first connection terminal J1, the second connection terminal J2, and the third connection terminal J3 are through-hole terminals, which can be compatible with various customer needs and improve the flexibility of the embedded power supply.

[0093] In one embodiment, such as Figure 6 As shown, the backplate 121 also includes a gold finger connector U2;

[0094] The gold finger connector U2 is used to transmit single-phase AC power transmitted by the first and second terminals of the connection terminal 1211 to the rectifier module 122 and the AC-DC module 1212, and to transmit the first DC power output by the rectifier module 122 to the fifth and sixth terminals of the connection terminal 1211, and to transmit communication information with the rectifier module at the seventh and eighth terminals of the connection terminal 1211.

[0095] Specifically, terminals A1, A2, A3, A4, and A5 of the gold finger connector U2 are electrically connected; terminals B1, B2, B3, B4, and B5 are electrically connected; terminals A7, A8, A9, A10, and A11 are electrically connected; and terminals B7, B8, B9, B10, B11, B13, and B14 are electrically connected for transmitting the first DC current. Terminal A13 of the gold finger connector U2 is electrically connected to the seventh terminal of the connection terminal 1211 and the first communication terminal of the rectifier module 122; terminal A14 of the gold finger connector U2 is electrically connected to the eighth terminal of the connection terminal 1211 and the second communication terminal of the rectifier module 122. Terminals A13 and A14 of the gold finger connector U2 are used to transmit communication signals between multiple embedded power supplies and also to transmit communication signals between the host computer and the embedded power supply.

[0096] The A16, A17, and A18 terminals of the gold finger connector U2 are electrically connected, the B16, B17, and B18 terminals are electrically connected, and they are also electrically connected to the ground terminal.

[0097] The gold finger connector U2 has its A21 and A22 terminals electrically connected, its A25 and A26 terminals electrically connected, its B21 and B22 terminals electrically connected, and its B25 and B26 terminals electrically connected, for transmitting single-phase AC power.

[0098] In this embodiment of the utility model, the embedded power supply adopts a wireless connection, that is, it is connected through a gold finger connector, which reduces wiring and simplifies operation.

[0099] like Figure 6 As shown, the backplate 121 also includes a third capacitor C3 and a fourth capacitor C4. The third capacitor C3 is connected between the connection points of terminals B16, B17 and B18 of the gold finger connector U2 and the connection points of terminals B21 and B22 of the gold finger connector U2. The fourth capacitor C4 is connected between the connection points of terminals B16, B17 and B18 of the gold finger connector U2 and the connection points of terminals B25 and B26 of the gold finger connector U2.

[0100] In this embodiment of the invention, the third capacitor C3 and the fourth capacitor C4 are used to improve the system's EMC (Electromagnetic Compatibility) index.

[0101] In one embodiment, such as Figure 5 As shown, the backplate 121 also includes a second resistor R2, which is connected between the first end of the second connection terminal J2 and the second end of the second connection terminal J2.

[0102] In this embodiment, the second resistor R2 is a CAN communication terminal resistor used to improve communication quality.

[0103] In one embodiment, such as Figure 7 As shown, the backplate 121 also includes a fuse F1, which is connected between the connection point of the 7th end, the 8th end and the 9th end of the first connection terminal J1 and the first end of the first resistor R1.

[0104] F1 protects the components in the circuit.

[0105] like Figure 8 The diagram shown is a schematic of multiple embedded power supplies providing power to a load according to an embodiment of this utility model. Figure 8 In this system, multiple embedded power supplies are electrically connected through a communication terminal to achieve parallel operation and capacity expansion. Specifically, the rectifier units in multiple embedded power supplies are connected through a CAN communication terminal to transmit communication signals, thereby achieving the goal of evenly distributing the output current, i.e., autonomous current sharing, and connecting the DC output to the DC bus for capacity expansion or redundancy.

[0106] For example, three embedded power supplies power one load. The seventh terminal of the first embedded power supply is electrically connected to the seventh terminals of the second and third embedded power supplies. The eighth terminal of the first embedded power supply is electrically connected to the eighth terminals of the second and third embedded power supplies. The three embedded power supplies achieve autonomous current sharing by electrically connecting CAN+ and CAN-. If the load requires 90A of current, after autonomous current sharing, the current output of each embedded power supply will be 30A.

[0107] This utility model provides an embedded power supply, which can be used for -48Vdc / 65A embedded communication power supply products. It can supply power to power systems in computer rooms, data centers, air conditioning systems, etc. The embedded power supply includes an AC distribution unit, a rectifier unit, and an output unit. The rectifier unit includes a backplane and a rectifier module. The backplane includes connection terminals and an AC-DC module. The AC distribution unit receives single-phase AC power and transmits it to the connection terminals. The connection terminals transmit the received single-phase AC power to the rectifier module and the AC-DC module. The rectifier module receives the single-phase AC power and converts it into a first-phase AC power output. The AC-DC module receives single-phase AC power, converts it into second-phase DC power, and outputs the second-phase DC power to the connection terminal. The second-phase DC power includes both valid and invalid DC power. The connection terminal transmits the first and second-phase DC power to the output unit. Since the first-phase DC power is used to provide power to the external system, and the second-phase DC power is used to provide a voltage signal to detect whether the single-phase AC power is abnormal, the embedded power supply provided in this embodiment can simultaneously provide power to the external system and detect single-phase AC power, thereby improving the reliability of the embedded power supply. Furthermore, since multiple rectifier units can be connected via CAN communication terminals to connect the DC output to the DC bus, capacity expansion or redundancy can be achieved, thereby reducing user costs.

[0108] Those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An embedded power supply, characterized in that, include: An AC power distribution unit, a rectifier unit, and an output unit are provided, wherein the rectifier unit includes a backplane and a rectifier module, and the backplane includes connection terminals and an AC-DC module; The AC power distribution unit is used to receive single-phase AC power; The rectifier module is used to convert the received single-phase alternating current into a first direct current. The AC-DC module is used to convert the received single-phase alternating current into a second direct current, wherein the second direct current includes valid direct current and invalid direct current; The connection terminal is electrically connected to the AC power distribution unit, the AC-DC module, the rectifier module and the output unit, and is used to receive single-phase AC power output by the AC power distribution unit, transmit the single-phase AC power to the AC-DC module and the rectifier module, and output the first DC power and the second DC power to the output unit. The output unit is used to output the first DC power and the second DC power, wherein the first DC power is used to provide power to the outside, and the second DC power is used to characterize whether the single-phase AC power is abnormal.

2. The embedded power supply as described in claim 1, characterized in that, The AC-DC module is specifically used for: When the effective voltage value of the single-phase alternating current is less than or equal to the preset voltage value, invalid direct current is output. When the effective voltage value of the single-phase alternating current is greater than the preset voltage value, an effective direct current is output. The invalid DC power is used to characterize the single-phase AC power as abnormal, while the valid DC power is used to characterize the single-phase AC power as normal.

3. The embedded power supply as described in claim 1, characterized in that, The first input terminal of the AC-DC module is electrically connected to the first terminal of the connection terminal, and the first terminal of the connection terminal is also electrically connected to the first input terminal of the rectifier module; The second input terminal of the AC-DC module is electrically connected to the second terminal of the connection terminal, and the second terminal of the connection terminal is also electrically connected to the second input terminal of the rectifier module; The first output terminal of the AC-DC module is electrically connected to the third terminal of the connection terminal; The second output terminal of the AC-DC module is electrically connected to the fourth terminal of the connection terminal; The first and second ends of the connection terminal are used to transmit the single-phase alternating current, and the third and fourth ends of the connection terminal are used to transmit the second direct current.

4. The embedded power supply as described in claim 3, characterized in that, The backplate also includes a first resistor; The first resistor is connected between the first input terminal and the second input terminal of the AC-DC module.

5. The embedded power supply as described in claim 4, characterized in that, The backplate also includes a first capacitor; The first capacitor is connected between the first input terminal of the AC-DC module and the second input terminal of the AC-DC module.

6. The embedded power supply as described in claim 5, characterized in that, The backplate also includes a second capacitor; The second capacitor is connected between the first output terminal and the second input terminal of the AC-DC module.

7. The embedded power supply as described in claim 3, characterized in that, The fifth terminal of the connection terminal is electrically connected to the first output terminal of the rectifier module, and the sixth terminal of the connection terminal is electrically connected to the second output terminal of the rectifier module. The fifth and sixth terminals of the connection terminal are used to transmit the first DC power. The seventh terminal of the connection terminal is electrically connected to the first communication terminal of the rectifier module, and the eighth terminal of the connection terminal is electrically connected to the second communication terminal of the rectifier module.

8. The embedded power supply as described in claim 7, characterized in that, The connection terminal includes a first connection terminal, a second connection terminal, and a third connection terminal; The first connection terminal includes a first end and a second end of the connection terminal; The second connection terminal includes a third end, a fourth end, a seventh end, and an eighth end. The second connection terminal includes a fifth end and a sixth end of the connection terminal.

9. The embedded power supply as described in claim 8, characterized in that, The first connection terminal, the second connection terminal, and the third connection terminal are all through-hole terminals.

10. The embedded power supply as described in claim 7, characterized in that, The backplate also includes a gold finger connector; The gold finger connector is used to transmit the single-phase AC power output from the first and second terminals of the connection terminal to the rectifier module and the AC-DC module, and to transmit the first DC power output from the rectifier module to the fifth and sixth terminals of the connection terminal, and to transmit communication signals between the connector and the rectifier module via the seventh and eighth terminals of the connection terminal.

Images