High-frequency switching power supply

Abstract

The embodiment of the utility model discloses a high-frequency switching power supply, which reduces the occupied space of an electric device, and relates to the field of electrical equipment. The high-frequency switching power supply comprises a box body which comprises a containing space defined by a plurality of box plates, and the containing space is provided with an opening; the box door is hinged to the box body, and the box door is arranged corresponding to the opening of the containing space; the plug-in box is located in the containing space and fixed to the box body, and the plug-in box is provided with an intelligent circuit breaker adaptation bin; and the intelligent circuit breaker is arranged in the intelligent circuit breaker adaptation bin and is fixedly connected with the subrack. The embodiment of the utility model is suitable for scenes needing to realize power shunt output.

Description

Technical Field

[0001] The utility model relates to the field of electrical equipment, in particular to a high-frequency switching power supply. Background Art

[0002] High-frequency switching power supply (also called switching rectifier SMR) is a power supply that works at high frequency through MOSFET or IGBT. The switching frequency is generally controlled in the range of 50-100kHz to achieve high efficiency and miniaturization. At present, high-frequency switching rectifier power supply has been widely used in telecommunications, electricity, petroleum and other fields. Once the AC mains fails, the high-frequency switching rectifier power supply will rely on its backup battery pack to maintain power supply to the DC load. The discharge time of the battery pack is limited and will not maintain discharge for a long time.

[0003] High-frequency switching power supplies are usually composed of AC distribution modules, rectifier distribution modules, DC distribution modules and monitoring units. Among them, the DC distribution module uses the working principle of primary power-off and secondary power-off or power-protection power-off, and adopts contactors, shunts, ordinary circuit breakers and other components to achieve branch output, resulting in a large number of components and quantities used, and occupying a large space inside the high-frequency switching power supply box. Utility Model Content

[0004] In view of this, an object of the present utility model is to provide a high-frequency switching power supply, which is convenient for reducing the occupied space inside the high-frequency switching power supply box.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An embodiment of the utility model provides a high-frequency switching power supply, which includes: a box body, including a storage space surrounded by a plurality of box panels, the storage space having an opening; a box door, hinged on the box body, and the box door is arranged corresponding to the opening of the storage space; a plug-in box, the plug-in box is located in the storage space and fixed on the box body, the plug-in box has an intelligent circuit breaker adapter compartment; an intelligent circuit breaker, the intelligent circuit breaker is arranged inside the intelligent circuit breaker adapter compartment and is fixedly connected to the plug-in box.

[0007] Optionally, the plug-in box is a 2U plug-in box.

[0008] Optionally, the interior of the plug-in box is divided into two layers, an upper layer and a lower layer. The upper layer of the plug-in box is divided into two accommodating chambers, each used to install the intelligent circuit breaker. The lower layer of the plug-in box is divided into two adjacent accommodating chambers on the left and right. One of the two accommodating chambers is used to install the intelligent circuit breaker, and the other accommodating chamber is used to install the monitoring unit.

[0009] Optionally, a support member is provided at the bottom of the accommodating space of the box body, the plug-in box is arranged on the support member, longitudinal connecting plates are respectively provided on both sides of the plug-in box, and the plug-in box is fixedly connected to the support member through the longitudinal connecting plates.

[0010] Optionally, an AC power distribution module is further provided inside the accommodating space and above the plug-in box, and the AC power distribution module is fixedly connected to the box body.

[0011] Optionally, the AC power distribution module includes a bracket, and the bracket is fixedly mounted on the inner wall of the box.

[0012] Optionally, a cable arrangement hole is further provided at the bottom of the accommodating cavity of the box body, and the cable arrangement hole is located in a region formed by two side walls of the box body and the plug-in box.

[0013] Optionally, the high-frequency switching power supply further includes: a rectifier and power distribution module, and the rectifier and power distribution module is arranged on the inner wall of the box door.

[0014] Optionally, a cooling fan is provided on the side wall of the box body, roughly corresponding to the rectifier and power distribution module, and a protective net is installed on the air duct of the cooling fan.

[0015] The utility model provides a high-frequency switching power supply, comprising a box body, comprising a storage space surrounded by a plurality of box panels, the storage space having an opening; a box door, hinged on the box body, and the box door is arranged corresponding to the opening of the storage space; a plug-in box, the plug-in box is located in the storage space and fixed on the box body, and the plug-in box has an intelligent circuit breaker adapter compartment; an intelligent circuit breaker, the intelligent circuit breaker is arranged inside the intelligent circuit breaker adapter compartment and is fixedly connected to the plug-in box; in this way, by arranging a plug-in box adapted to install the intelligent circuit breaker in the box body, and replacing components such as contactors, shunts and ordinary circuit breakers with intelligent circuit breakers that can achieve the same functions, the types and quantities of electronic components in the box body are reduced, thereby reducing the occupied space inside the box body of the high-frequency switching power supply, thereby making the internal space of the box body compact and improving the utilization rate of the internal space of the box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the overall structure of a high-frequency switching power supply in one embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a plug-in box in a high-frequency switching power supply in an embodiment of the utility model;

[0019] Figure 3 It is a partial enlarged schematic diagram of a high-frequency switching power supply in an embodiment of the utility model, in which a plug-in box is fixed inside a box body;

[0020] Figure 4 It is a partial enlarged schematic diagram of an AC power distribution module in a high-frequency switching power supply in an embodiment of the utility model fixed inside a box;

[0021] Figure 5 It is a three-dimensional structural diagram of a high-frequency switching power supply in one embodiment of the utility model. DETAILED DESCRIPTION

[0022] The embodiments of the utility model are described in detail below with reference to the accompanying drawings.

[0023] It should be clear that the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The embodiment of the utility model provides a high-frequency switching power supply, which can make the space in the box compact and improve the utilization efficiency of the box space.

[0025] The present invention is further described in detail below with reference to the accompanying drawings.

[0026] See also Figure 1 The embodiment of the utility model provides a high-frequency switching power supply, which includes: a box body 11, including a storage space 111 surrounded by a plurality of box boards, and the storage space 111 has an opening; a box door 12, which is hinged on the box body 11, and the box door 12 is arranged corresponding to the opening of the storage space 111; a plug-in box 13, the plug-in box 13 is located in the storage space 111, and is fixed on the box body 11, and the plug-in box 13 has an intelligent circuit breaker adapter compartment 131; an intelligent circuit breaker 132, the intelligent circuit breaker 132 is arranged inside the intelligent circuit breaker adapter compartment 131, and is fixedly connected to the plug-in box 13;

[0027] Among them, the box body 11 is provided with a door 12 hinged on one side of the opening, which facilitates the operator to load and unload and operate the power supply; the intelligent circuit breaker 132 is installed in the adapter compartment 131 in the plug-in box, and the plug-in box 13 and the intelligent circuit breaker 132 form a DC distribution module, which facilitates the intelligent circuit breaker to reasonably distribute the DC output; the intelligent circuit breaker 132 provides overload and short-circuit protection for the line, and also includes collecting data information such as electric energy, power, voltage, current, etc. in the line, and can query data information and set parameter information through RS485 communication method, and integrate remote control, telemetry, remote signaling, and remote adjustment functions. For example, the MB 8Z-63 / 63A series intelligent molded case circuit breaker produced by TYT Guizhou Taiyong Changzheng Technology Co., Ltd. can be used. The rated voltage during operation is DC60V / 80V, and the rated current is 63A and below. Of course, intelligent circuit breakers produced by other manufacturers that can achieve the above functions can also be used.

[0028] The utility model provides a high-frequency switching power supply, comprising a box body, comprising a storage space surrounded by a plurality of box panels, the storage space having an opening; a box door, which is hinged on the box body and arranged corresponding to the opening of the storage space; a plug-in box, which is located in the storage space and fixed on the box body, and has an intelligent circuit breaker adapter compartment; an intelligent circuit breaker, which is arranged inside the intelligent circuit breaker adapter compartment and fixedly connected to the plug-in box; in this way, by arranging a plug-in box adapted to install the intelligent circuit breaker in the box body, and replacing components such as contactors, shunts and ordinary circuit breakers with intelligent circuit breakers that can achieve the same functions, the types and quantities of electronic components in the box body are reduced, thereby reducing the occupied space inside the box body of the high-frequency switching power supply, thereby making the internal space of the box body compact and improving the utilization rate of the internal space of the box body.

[0029] See also Figure 1 In some embodiments, the plug box 13 is a 2U plug box; wherein the 2U plug box can adapt to the specifications of the intelligent circuit breaker, and the external dimensions of the 2U plug box can be adjusted according to different needs, and multiple devices can be integrated together, thereby reducing the difficulty of equipment management and increasing the use methods and use scenarios of the plug box. Preferably, the plug box 13 is an embedded 2U plug box. The material of the plug box can be selected from cold-rolled steel plates, which are manufactured and formed by sheet metal processing technology, so that the processing is convenient.

[0030] See also Figure 1 , Figure 2In some embodiments, the interior of the plug box 13 is divided into an upper and a lower layer, the upper layer of the plug box is divided into two accommodating chambers 21 and 22, which are respectively used to insert the intelligent circuit breaker, and the lower layer of the plug box is divided into two adjacent accommodating chambers 23 and 24. One of the two accommodating chambers 23 is used to insert the intelligent circuit breaker, and the other accommodating chamber 24 is used to insert the monitoring unit 25; wherein, the upper and lower layered structure of the plug box and the design that the upper layer of the plug box is divided into two accommodating chambers and the lower layer is divided into two adjacent accommodating chambers make full use of the accommodating space of the plug box, and the adjacent accommodating chambers of the lower layer are used to insert one intelligent circuit breaker and one monitoring unit. The intelligent circuit breaker integrates the functions of components such as contactors, shunts and ordinary circuit breakers, and is connected to the monitoring unit at the same time. The monitoring unit can detect the DC distribution module through the intelligent circuit breaker, so that the components inside the plug box can be disassembled into multiple pieces during installation and maintenance, which is convenient for the installation, maintenance and processing of the components. At the same time, the monitoring unit can detect the operating status of the DC distribution module.

[0031] In other feasible examples, a non-intelligent circuit breaker 133 may be installed inside the plug box 13. The non-intelligent circuit breaker 133 is arranged on the upper layer of the plug box 13 and above the monitoring unit 25. The non-intelligent circuit breaker may be arranged according to the user's usage requirements.

[0032] See also Figure 1 , Figure 3 In some embodiments, a support member 31 is provided at the bottom of the accommodating space of the box body 11, and the plug box 13 is provided on the support member 31. Longitudinal connecting plates 32 are respectively provided on both sides of the plug box 13, and the plug box 13 is fixedly connected to the support member 31 through the longitudinal connecting plates 32; wherein, the support member 31 includes a crossbeam, and the crossbeam is fixed to the bottom of the box body. The double-layer structure of the plug box 13 is fixed into an integrated structure by combination nails and the longitudinal connecting plates 32 on both sides of the plug box 13, and then the integrated structure of the plug box 13 and the longitudinal connecting plates 32 is fixed to the crossbeam by combination nails, and the lower bottom surface of the crossbeam is welded to the lower bottom surface of the bottom of the box body, so as to maintain the stability of the plug box and prevent the plug box from loosening.

[0033] See also Figure 1 , Figure 4 In some embodiments, an AC distribution module 14 is further provided inside the accommodating space 111 and above the plug-in box 13, and the AC distribution module 14 is fixedly connected to the box body; wherein, an AC distribution module 14 is provided above the accommodating space 111 inside the box body 11, and components in the AC distribution module 14 are mounted on a guide rail 41, and the guide rail 41 is fixedly connected to the inner surface of the box body 11 through nuts and rivet screws on the box body, thereby fixing the AC distribution module inside the box body, so that when the AC distribution module is connected to the line, the line is neat and not easy to be tangled, and the position of the AC distribution module can also be adjusted according to the connection needs, which is convenient for operation.

[0034] See also Figure 1 , Figure 4 In some embodiments, the AC power distribution module 14 includes a bracket 42, and the bracket 42 is fixedly mounted on the inner wall of the box body 11; wherein, when there are components that cannot be installed on the guide rail 41, the components can be fixed on the bracket 42, and then the bracket 42 is fixedly connected to the inner surface of the box body 11 through nuts and rivet screws on the box body, thereby ensuring the functional and structural integrity of the AC power distribution module and enabling it to operate normally.

[0035] See also Figure 1 , Figure 5 In some embodiments, a cable routing hole 53 is further provided at the bottom of the accommodating space 111 of the box body 11, and the cable routing hole 53 is located in the area formed by the two side walls of the box body 11 and the plug-in box 13; wherein, the cable routing holes 53 are in the area formed by the two side walls of the box body 11 and the plug-in box 13, and the cable routing holes 53 are vertically symmetrically distributed along the axis of the opening of the box body 11, thereby reducing the distance that the line enters the box body and reducing the loss of electric energy during transmission.

[0036] See also Figure 1 , Figure 5 In some embodiments, the high-frequency switching power supply further includes: a rectifier distribution module 15, which is arranged on the inner wall of the box door; wherein the rectifier distribution module 15 includes a tower bracket 54, a module assembly 55, and a connecting rod 56, the tower bracket 54 and the module assembly 55 are fixed to each other by combination nails, and the tower bracket 54 is also fixedly connected to the connecting rod 56 by combination nails, and the connecting rod 56 is arranged on both sides of the tower bracket 54 close to the inner wall of the box door 12, and the connecting rod 56 is welded to the inner wall of the box door 12, thereby ensuring the stability of the rectifier distribution unit connected to the inside of the box, ensuring that the distribution modules are all arranged inside the box, making it difficult for external factors to affect the normal operation of the distribution module, and reducing the difficulty of maintenance.

[0037] See also Figure 1 , Figure 5 In some embodiments, a cooling fan 51 is provided on the side wall of the box 11, roughly corresponding to the rectifier and distribution module 14, and a protective net 52 is installed on the air duct of the cooling fan 51; wherein, the cooling fan 51 discharges the heat generated in the box 11 to the external environment through the air duct, and the protective net 52 is fixed on the inner side of the cooling fan 51 by a combination nail, so as to prevent the operator from accidentally touching it and causing a safety accident, and at the same time ensure that the heat generated in the box can be fully dissipated, thereby improving the heat dissipation efficiency in the box.

[0038] The working principle and use process of this utility model:

[0039] When the high-frequency switching power supply of the utility model is needed, the AC distribution module is first used to power the rectifier in the system through the AC input circuit breaker. The single-phase AC power is rectified and stabilized into stable DC power through the rectification and distribution module. The DC power is reasonably distributed to the load through the intelligent circuit breaker according to the requirements of different loads through the DC distribution module. At the same time, two groups of batteries can be connected as loads; the monitoring unit monitors the operating status of the AC distribution module, the rectification distribution module, and the DC distribution module in real time, analyzes and judges according to the detection results, and executes related operations at the same time.

[0040] In summary, the high-frequency switching power supply provided by the embodiment of the utility model reduces the types and quantity of electronic components by setting a plug-in box adapted for installing an intelligent circuit breaker in its casing, and replacing components such as contactors, shunts and ordinary circuit breakers with intelligent circuit breakers that can achieve the same functions, thereby facilitating the reduction of the occupied space inside the casing of the high-frequency switching power supply, thereby making the internal space of the casing compact and improving the utilization rate of the internal space of the casing.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0042] The above content has described the embodiments of the utility model in detail. Those skilled in the art can design and modify the device and its use within the scope of the utility model according to the on-site construction conditions.

[0043] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0044] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A high frequency switching power supply, characterized in that: include: The box body comprises a containing space surrounded by a plurality of box boards, wherein the containing space has an opening; A box door is hinged on the box body and is arranged corresponding to the opening of the accommodating space; A plug-in box, the plug-in box is located in the accommodating space and fixed on the box body, and the plug-in box has an intelligent circuit breaker adapter compartment; An intelligent circuit breaker is arranged inside the intelligent circuit breaker adapter compartment and is fixedly connected to the plug box.

2. The high-frequency switching power supply according to claim 1, characterized in that: The plug-in box is a 2U plug-in box.

3. The high-frequency switching power supply according to claim 1, characterized in that: The interior of the plug-in box is divided into two layers, an upper layer and a lower layer. The upper layer of the plug-in box is divided into two accommodating chambers, each used to insert the intelligent circuit breaker. The lower layer of the plug-in box is divided into two adjacent accommodating chambers on the left and right. One of the two accommodating chambers is used to insert the intelligent circuit breaker, and the other accommodating chamber is used to insert the monitoring unit.

4. The high-frequency switching power supply according to claim 1, characterized in that: A support is provided at the bottom of the accommodating space of the box body, the plug-in box is arranged on the support, longitudinal connecting plates are respectively provided on both sides of the plug-in box, and the plug-in box is fixedly connected to the support through the longitudinal connecting plates.

5. The high-frequency switching power supply according to claim 1, characterized in that: An AC power distribution module is also provided inside the accommodating space and above the plug-in box, and the AC power distribution module is fixedly connected to the box body.

6. The high-frequency switching power supply according to claim 5, characterized in that: The AC power distribution module comprises a bracket, and the bracket is fixedly mounted on the inner wall of the box.

7. The high-frequency switching power supply according to claim 2, characterized in that: A cable arrangement hole is also provided at the bottom of the accommodating cavity of the box body, and the cable arrangement hole is located in the area formed by the two side walls of the box body and the plug-in box.

8. The high-frequency switching power supply according to claim 1, characterized in that: Also includes: A rectifier and power distribution module is arranged on the inner wall of the box door.

9. The high-frequency switching power supply according to claim 8, characterized in that: A cooling fan is provided on the side wall of the box body, roughly corresponding to the rectifier and power distribution module, and a protective net is installed on the air duct of the cooling fan.

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