High-precision stable UPS (Uninterrupted Power Supply) output device

Abstract

The utility model discloses a high-precision stable UPS power supply output device, which belongs to the technical field of UPS power supplies and comprises a power supply shell, a high-precision UPS circuit board is fixedly arranged on the upper portion in the power supply shell, and a transformer, a storage battery and a circuit protection structure are arranged on a bottom plate of the power supply shell. A plurality of through air inlet grille openings are formed in a left side plate of the power source shell, an upper partition plate is fixedly arranged at the top in the power source shell, a heat dissipation control circuit board is fixedly arranged on the upper end face of the upper partition plate, and temperature sensors are fixedly arranged on the inner walls of the front side plate and the rear side plate of the power source shell. And a cooling fan group is fixedly arranged on the right side plate of the power supply shell. Therefore, the power of the cooling fan can be adjusted according to the current internal temperature condition of the UPS power supply, an input access of external electric energy can be cut off immediately when internal electrical components are overheated, and the device is protected.

Description

Technical Field

[0001] The utility model relates to a UPS power supply, in particular to a high-precision stable UPS power supply output device, belonging to the technical field of UPS power supply. Background Art

[0002] UPS is an uninterruptible power supply, usually one of the subsystems of the weak current room engineering. It connects the battery to the host equipment and is mainly used to provide a stable and uninterrupted power supply to the equipment. When the mains input is normal, the UPS stabilizes the mains and supplies it to the load. At this time, the UPS is an AC voltage stabilizer, and it also charges the battery inside the machine; when the mains power is interrupted (power outage due to an accident), the UPS immediately switches the DC power of the battery to the 220V AC power to the load through the inverter switching conversion method, so that the load maintains normal operation and protects the load software and hardware from damage.

[0003] The electrical components inside the existing UPS power output device will inevitably generate heat and accumulate when working. In order to ensure the normal operation of the electrical components, the cooling fan in the existing technical solution usually works at a constant rated power during operation, and it is difficult to adjust its own power according to the current temperature conditions inside the UPS power supply. When the internal electrical components overheat and exceed the maximum heat dissipation capacity of the cooling fan, the UPS power output device cannot be stopped immediately to avoid overheating and fire. Therefore, a high-precision and stable UPS power output device is proposed to address the above problems. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a high-precision and stable UPS power output device. The UPS power supply can adjust the power of the cooling fan according to the current temperature conditions inside the UPS power supply, can ensure the heat dissipation effect while playing an energy-saving role, and can immediately cut off the input path of external power when the internal electrical components are overheated, thereby protecting the device. The utility model solves the technical problems in the prior art that the cooling fan arranged inside the UPS power supply is difficult to ensure the heat dissipation effect while playing an energy-saving role and lacks overheating protection measures.

[0005] In order to solve the above problems, the following technical solutions are provided:

[0006] A high-precision and stable UPS power output device is designed, including a power supply shell, a high-precision UPS circuit board is fixedly arranged on the upper part of the power supply shell, a transformer and a battery are fixedly arranged on the upper end surface of the bottom plate of the power supply shell from left to right, an external interface is fixedly arranged on the left side plate of the power supply shell, a circuit protection structure is fixedly arranged on the bottom plate of the power supply shell at a position between the transformer and the external interface, a plurality of through air inlet grille openings are opened on the left side plate of the power supply shell, an upper partition is fixedly arranged on the top of the power supply shell, a heat dissipation control circuit board is fixedly arranged on the upper end surface of the upper partition, temperature sensors are fixedly arranged on the inner walls of the front and rear side plates of the power supply shell, and a heat dissipation fan group is fixedly arranged on the right side plate of the power supply shell.

[0007] Furthermore, the cooling fan group includes a mounting bar fixedly arranged between the front and rear side panels of the power supply housing and an air outlet tube installed on the right side panel of the power supply housing, a fan body is fixedly installed on the mounting bar, and the fan body is arranged in the air outlet tube.

[0008] The above-mentioned structural form can realize the installation and fixation of the fan body, and the air outlet pipe is used to form an exhaust channel. At the same time, the installation of the horizontal bar will not block too much air duct area.

[0009] Furthermore, the transformer and the battery are electrically connected to the high-precision UPS circuit board through wires, the external interface is electrically connected to the circuit protection structure through wires, and the circuit protection structure is electrically connected to the high-precision UPS circuit board through wires.

[0010] The above-mentioned structural form can introduce AC power and output stabilized AC power through an external interface. The AC power is processed by a high-precision UPS circuit board and a transformer and output from the external interface. When the battery is not fully charged, the high-precision UPS circuit board converts part of the AC power into DC power and charges it into the battery. When the external AC power supply is interrupted, the DC power output by the battery is processed by the high-precision UPS circuit board into AC power and output from the external interface. In particular, when the internal temperature of the device is too high, the circuit protection structure can automatically cut off the power input, causing the device to suspend operation and avoid overheating and fire.

[0011] Furthermore, the circuit protection structure includes an insulating shell, an insulating middle plate is fixedly arranged in the insulating shell, an electromagnet is fixedly arranged in the middle of the lower end surface of the insulating middle plate, the electromagnet is electrically connected to the heat dissipation control circuit board through a wire, a guide rod is slidably arranged on the insulating middle plate, an insulating movable plate is fixedly connected to the bottom end of the guide rod, a magnetic suction plate is fixedly arranged on the upper end surface of the insulating movable plate, a reset spring is provided on the guide rod jacket, a movable contact piece is fixedly arranged on the lower end surface of the insulating movable plate, fixed contacts are fixedly arranged on both sides of the upper end surface of the bottom plate of the insulating shell, the ends of the fixed contacts are fixedly connected to terminal heads, and the terminal heads are electrically connected to the wires.

[0012] The above-mentioned structural form can, when the temperature inside the device is too high, the electromagnet works to generate adsorption force on the magnetic attraction piece, thereby lifting the movable contact piece to separate it from the fixed contact piece, thereby cutting off the input of external electrical energy, protecting the device and avoiding overheating and fire. When the temperature inside the device drops, the electromagnet stops working, and the movable contact piece overlaps with the fixed contact piece under the thrust of the reset spring, connecting the input circuit of external electrical energy.

[0013] Furthermore, the heat dissipation control circuit board is electrically connected to the high-precision UPS circuit board through a wire.

[0014] The above-mentioned structural form can supply part of the city power to the heat dissipation control circuit board through the high-precision UPS circuit board, so that the heat dissipation control circuit board can control the normal operation of related heat dissipation components.

[0015] Furthermore, the temperature sensor and the fan body are electrically connected to the heat dissipation control circuit board through wires.

[0016] In the above structure, the temperature sensor can monitor the current ambient temperature and transmit the data to the heat dissipation control circuit board. The heat dissipation control circuit board can control the working power of the fan body according to the temperature information to achieve energy saving while ensuring the heat dissipation effect.

[0017] Furthermore, a plurality of transversely arranged flow guide ribs are fixedly arranged on the inner walls of the front and rear side panels of the power supply housing.

[0018] The above structural form can guide the airflow to move horizontally, avoid the generation of turbulence as much as possible, and improve the heat dissipation effect.

[0019] Furthermore, a slot plate is fixedly provided at the outer end surface edges of the left and right side plates of the power supply housing, and a dust filter mesh plate is slidably provided in the slot plate.

[0020] The above-mentioned structural form can prevent external dust and debris from entering the device through the air inlet grille or the air outlet.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] In the utility model, a complete air duct is formed by the arranged air inlet grille and the air outlet pipe, and the fan body can drive the air flow along the air duct when it is working, and take away the heat inside the device. In particular, the temperature sensor can monitor the current ambient temperature and transmit the data to the heat dissipation control circuit board, and the heat dissipation control circuit board can control the working power of the fan body according to the temperature information, so as to achieve energy saving while ensuring the heat dissipation effect. In addition, when the internal electrical components are overheated, the input path of the external electric energy can be cut off immediately, which protects the device and avoids overheating and fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 It is a front view of the overall structure of the utility model;

[0025] Figure 2 It is a structural sectional view of the utility model;

[0026] Figure 3 This is a rear view of the overall structure of the utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the heat dissipation fan assembly of the utility model;

[0028] Figure 5 This is a schematic diagram of the guide rib structure of the utility model;

[0029] Figure 6 This is a schematic diagram of the dust-proof structure of the utility model;

[0030] Figure 7 It is a cross-sectional view of the circuit protection structure of the utility model.

[0031] In the figure: 1. power supply housing; 11. air inlet grille; 12. guide ribs; 21. high-precision UPS circuit board; 22. transformer; 23. battery; 24. external interface; 25. circuit protection structure; 251. insulating housing; 2511. insulating middle plate; 252. electromagnet; 2521. magnetic suction plate; 253. guide rod; 254. insulating movable plate; 255. reset spring; 256. movable contact piece; 257. fixed contact piece; 258. terminal block; 3. upper partition; 4. heat dissipation control circuit board; 5. temperature sensor; 6. cooling fan assembly; 61. installation bar; 62. air outlet; 63. fan body; 7. wire; 8. dust filter screen; 81. card slot plate. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0033] like Figure 1 - Figure 2As shown, a high-precision and stable UPS power output device provided in this embodiment includes a power housing 1, a high-precision UPS circuit board 21 is fixedly arranged on the upper inner part of the power housing 1, a transformer 22 and a battery 23 are fixedly arranged on the upper end surface of the bottom plate of the power housing 1 from left to right, an external interface 24 is fixedly arranged on the left side plate of the power housing 1, the transformer 22, the battery 23, and the external interface 24 are electrically connected to the high-precision UPS circuit board 21 through a wire 7, respectively. In the above-mentioned structural form, the mains power and the output stabilized alternating current can be introduced through the external interface 24, the alternating current is processed by the high-precision UPS circuit board 21 and the transformer 22 and output from the external interface 24, and when the battery 23 is not in a fully charged state, the high-precision UPS circuit board 21 converts part of the alternating current into direct current and charges it into the battery 23, and when the external mains power supply is interrupted, the direct current output by the battery 23 is processed by the high-precision UPS circuit board 21 into alternating current and output from the external interface 24.

[0034] like Figure 1 - Figure 2 As shown, a circuit protection structure 25 is fixedly provided on the bottom plate of the power supply housing 1 between the transformer 22 and the external interface 24. The external interface 24 is electrically connected to the circuit protection structure 25 via a wire 7. The circuit protection structure 25 is electrically connected to the high-precision UPS circuit board 21 via a wire 7. When the internal temperature of the device is too high, the circuit protection structure 25 can automatically cut off the power input, causing the device to suspend operation to avoid overheating and fire.

[0035] like Figure 1 , Figure 2 , Figure 4 As shown, a plurality of through air inlet grille openings 11 are provided on the left side panel of the power supply casing 1, an upper partition plate 3 is fixedly provided on the top of the power supply casing 1, a heat dissipation control circuit board 4 is fixedly provided on the upper end surface of the upper partition plate 3, temperature sensors 5 are fixedly provided on the inner walls of the front and rear side panels of the power supply casing 1, a heat dissipation fan group 6 is fixedly provided on the right side panel of the power supply casing 1, the heat dissipation fan group 6 includes a mounting horizontal bar 61 fixedly provided between the front and rear side panels of the power supply casing 1 and an air outlet pipe 62 installed on the right side panel of the power supply casing 1, a fan body 63 is fixedly provided on the mounting horizontal bar 61, the fan body 63 is arranged in the air outlet pipe 62, the air inlet grille opening 11 and the air outlet pipe 62 constitute a complete air duct, and the fan body 63 can drive the airflow to flow along the air duct when it is working, so as to take away the heat inside the device.

[0036] like Figure 2-Figure 3As shown, the heat dissipation control circuit board 4 is electrically connected to the high-precision UPS circuit board 21 through the wire 7, and the temperature sensor 5 and the fan body 63 are electrically connected to the heat dissipation control circuit board 4 through the wire 7 respectively. In the above structural form, the temperature sensor 5 can monitor the current ambient temperature and transmit the data to the heat dissipation control circuit board 4. The heat dissipation control circuit board 4 can control the working power of the fan body 63 according to the temperature information, so as to achieve energy saving while ensuring the heat dissipation effect.

[0037] like Figure 5 As shown, a plurality of transversely arranged guide ribs 12 are fixedly arranged on the inner walls of the front and rear side panels of the power supply housing 1. The above-mentioned structural form can guide the airflow to move transversely, avoid the generation of turbulence as much as possible, and improve the heat dissipation effect.

[0038] like Figure 6 As shown, a slot plate 81 is fixedly provided at the outer end edge of the left and right side panels of the power supply housing 1, and a dust filter screen plate 8 is slidably provided in the slot plate 81. The above-mentioned structural form can prevent external dust and debris from entering the interior of the device through the air inlet grille opening 11 or the air outlet 62.

[0039] like Figure 7 As shown, the circuit protection structure 25 includes an insulating shell 251, an insulating middle plate 2511 is fixedly arranged in the insulating shell 251, an electromagnet 252 is fixedly arranged in the middle of the lower end surface of the insulating middle plate 2511, and the electromagnet 252 is electrically connected to the heat dissipation control circuit board 4 through a wire 7. A guide rod 253 is slidably arranged on the insulating middle plate 2511, and an insulating movable plate 254 is fixedly connected to the bottom end of the guide rod 253. A magnetic suction sheet 2521 is fixedly arranged on the upper end surface of the insulating movable plate 254, a reset spring 255 is arranged on the outer sleeve of the guide rod 253, and a movable contact sheet 256 is fixedly arranged on the lower end surface of the insulating movable plate 254. The upper end surface of the bottom plate of the insulating shell 251 has two upper ends. A fixed contact piece 257 is fixedly arranged on the side, and a terminal head 258 is fixedly connected to the end of the fixed contact piece 257, and the terminal head 258 is electrically connected to the wire 7. The above-mentioned structural form can, when the temperature inside the device is too high, the electromagnet 252 works to generate an adsorption force on the magnetic suction piece 2521, thereby lifting the movable contact piece 256 to separate it from the fixed contact piece 257, thereby cutting off the input of external electrical energy, protecting the device from overheating and fire. When the temperature inside the device drops, the electromagnet 252 stops working, and the movable contact piece 256 overlaps with the fixed contact piece 257 under the thrust of the reset spring 255, thereby connecting the input circuit of external electrical energy.

[0040] The use principle and use process of the utility model are as follows: the AC power is introduced through the external interface 24 and the AC power after the output voltage is stabilized is output from the external interface 24 after being processed by the high-precision UPS circuit board 21 and the transformer 22, and when the storage battery 23 is not in a fully charged state, the high-precision UPS circuit board 21 converts part of the AC power into DC power and charges it into the storage battery 23. When the external AC power supply is interrupted, the DC power output by the storage battery 23 is processed by the high-precision UPS circuit board 21 into AC power and output from the external interface 24, thereby realizing the basic functions of the UPS power supply;

[0041] The air inlet grille 11 and the air outlet 62 form a complete air duct. The fan body 63 can drive the air flow along the air duct to take away the heat inside the device. In particular, the temperature sensor 5 can monitor the current ambient temperature and transmit the data to the heat dissipation control circuit board 4. The heat dissipation control circuit board 4 can control the working power of the fan body 63 according to the temperature information, so as to achieve energy saving while ensuring the heat dissipation effect.

[0042] In addition, when the temperature inside the device is too high, the electromagnet 252 works to generate an adsorption force on the magnetic attraction piece 2521, thereby lifting the movable contact piece 256 to separate it from the fixed contact piece 257, thereby cutting off the input of external electrical energy, protecting the device from overheating and fire. When the temperature inside the device drops, the electromagnet 252 stops working, and the movable contact piece 256 overlaps with the fixed contact piece 257 under the thrust of the return spring 255, connecting the input circuit of external electrical energy.

[0043] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0044] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0045] The present invention is described above in conjunction with specific implementation methods, but it should be clear to those skilled in the art that these descriptions are exemplary and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on the spirit and principles of the present invention, and these modifications and variations are also within the scope of the present invention.

Claims

1. A high-precision and stable UPS power output device, comprising a power supply housing (1), characterized in that: A high-precision UPS circuit board (21) is fixedly arranged in the upper part of the power supply housing (1); a transformer (22) and a storage battery (23) are fixedly arranged on the upper surface of the bottom plate of the power supply housing (1) from left to right, respectively; an external interface (24) is fixedly arranged on the left side plate of the power supply housing (1); a circuit protection structure (25) is fixedly arranged on the bottom plate of the power supply housing (1) at a position between the transformer (22) and the external interface (24); a plurality of through air inlet grille openings (11) are opened on the left side plate of the power supply housing (1); an upper partition (3) is fixedly arranged on the top of the power supply housing (1); a heat dissipation control circuit board (4) is fixedly arranged on the upper surface of the upper partition (3); temperature sensors (5) are fixedly arranged on the inner walls of the front and rear side plates of the power supply housing (1); and a heat dissipation fan group (6) is fixedly arranged on the right side plate of the power supply housing (1).

2. A high-precision and stable UPS power output device according to claim 1, characterized in that: The heat dissipation fan assembly (6) comprises a mounting horizontal bar (61) fixedly arranged between the front and rear side panels of the power supply housing (1) and an air outlet tube (62) installed on the right side panel of the power supply housing (1); a fan body (63) is fixedly mounted on the mounting horizontal bar (61); and the fan body (63) is arranged in the air outlet tube (62).

3. A high-precision and stable UPS power output device according to claim 1, characterized in that: The transformer (22) and the storage battery (23) are electrically connected to the high-precision UPS circuit board (21) via wires (7), the external interface (24) is electrically connected to the circuit protection structure (25) via wires (7), and the circuit protection structure (25) is electrically connected to the high-precision UPS circuit board (21) via wires (7).

4. A high-precision and stable UPS power output device according to claim 1, characterized in that: The circuit protection structure (25) comprises an insulating shell (251), an insulating middle plate (2511) is fixedly arranged in the insulating shell (251), an electromagnet (252) is fixedly arranged in the middle of the lower end surface of the insulating middle plate (2511), the electromagnet (252) is electrically connected to the heat dissipation control circuit board (4) through a wire (7), a guide rod (253) is slidably arranged on the insulating middle plate (2511), and the bottom end of the guide rod (253) is fixedly connected to the insulating movable plate (25 4), a magnetic attraction sheet (2521) is fixedly provided on the upper end surface of the insulating movable plate (254), a return spring (255) is provided on the outer sleeve of the guide rod (253), a movable contact sheet (256) is fixedly provided on the lower end surface of the insulating movable plate (254), fixed contacts (257) are fixedly provided on both sides of the upper end surface of the bottom plate of the insulating shell (251), and a terminal (258) is fixedly connected to the end of the fixed contact sheet (257), and the terminal (258) is electrically connected to the wire (7).

5. A high-precision and stable UPS power output device according to claim 1, characterized in that: The heat dissipation control circuit board (4) is electrically connected to the high-precision UPS circuit board (21) via a wire (7).

6. A high-precision and stable UPS power output device according to claim 2, characterized in that: The temperature sensor (5) and the fan body (63) are electrically connected to the heat dissipation control circuit board (4) via wires (7).

7. A high-precision and stable UPS power output device according to claim 1, characterized in that: A plurality of transversely arranged flow guide ribs (12) are fixedly arranged on the inner walls of the front and rear side plates of the power supply housing (1).

8. A high-precision and stable UPS power output device according to claim 1, characterized in that: A slot plate (81) is fixedly arranged at the outer end surface edges of the left and right side plates of the power supply housing (1), and an ash filter screen plate (8) is slidably arranged in the slot plate (81).

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