Step-down transformer with overvoltage protection function

Abstract

The utility model relates to the technical field of equipment pressure reduction, and discloses a step-down transformer with an overvoltage protection function, which comprises a step-down transformer, the outer side of the step-down transformer is fixedly connected with uniformly distributed heat dissipation plates, the bottom end of the step-down transformer is fixedly connected with a cooling plate, and the inner side of the cooling plate is fixedly connected with a cooling pipe. The left side of the front end of the cooling pipe is fixedly connected with a first connecting pipe, the top end of the first connecting pipe is fixedly connected with a first cooling plate, the left side of the first cooling plate is fixedly connected with first cooling fans which are vertically opposite, and the inner side of the top end of the first cooling plate is fixedly connected with a first conveying pump; the right side of the first conveying pump is fixedly connected with a heat dissipation pipe. According to the cooling device, the cooling liquid is cooled, so that continuous cooling of the step-down transformer is realized, and the step-down transformer subjected to circulating cooling treatment can normally work more stably. By reducing the temperature, heat accumulation of internal elements can be reduced, so that the stability and the performance of the circuit are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment voltage reduction, in particular to a voltage reducer with an overvoltage protection function. Background Art

[0002] In the field of power electronics, a buck is a common circuit device used to reduce the input voltage to the required output voltage level. In many applications, especially in the fields of industrial control, electronic equipment and power management, overvoltage protection is one of the most important functions in the buck design. A buck with overvoltage protection is a buck with an intelligent protection mechanism, which is designed to protect the equipment connected to its output from damage by overvoltage. This type of buck usually has a built-in sophisticated electronic protection system that monitors the input voltage and takes appropriate protective measures when an overvoltage condition is detected.

[0003] After searching, the existing patent (Announcement No.: CN207354048U) discloses an AC buck, including a shell, an AC input interface arranged on the shell, a DC output interface, an AC output interface, and an AC buck circuit arranged inside the shell, wherein the AC buck circuit includes a full-bridge rectifier filter circuit, a flyback buck circuit, a DC-DC buck unit and an inverter unit; the AC input interface is connected to the input end of the full-bridge rectifier filter circuit; the output end of the full-bridge rectifier filter circuit is respectively connected to the input end of the flyback buck circuit and the input end of the DC-DC buck unit; the output end of the flyback buck circuit is respectively connected to the DC output interface, the input end of the DC-DC buck unit, and the input end of the inverter unit; the output end of the DC-DC buck unit is connected to the input end of the inverter unit; the output end of the inverter unit is connected to the AC output interface. The utility model is an AC buck that not only has a simple circuit structure, a small size, and is easy to carry; but also has rich functions, meets user needs, and improves user experience.

[0004] However, in the actual use of the above solution, heat will be generated, and when the heat accumulates to a certain extent, it will overheat, and the high temperature will affect the performance of the electronic components inside the buck, such as transistors, capacitors, etc., causing their working performance to decline. This may lead to unstable output voltage, reduced efficiency, or even failure.

[0005] In view of this, the utility model proposes a voltage reducer with an overvoltage protection function. Utility Model Content

[0006] The utility model provides a voltage reducer with an overvoltage protection function, which solves the problem in the related art that the voltage reducer cannot be cooled during use.

[0007] The technical solution of the utility model is as follows: a voltage reducer with an overvoltage protection function, comprising a voltage reducer, the voltage reducer is fixedly connected to a uniformly distributed heat sink on the outside, the voltage reducer is fixedly connected to a cooling plate on the bottom end, a cooling pipe is fixedly connected to the inside of the cooling plate, a first connecting pipe is fixedly connected to the left side of the front end of the cooling pipe, a first cooling plate is fixedly connected to the top end of the first connecting pipe, a first cooling fan opposite to the top and bottom is fixedly connected to the left side of the first cooling plate, a first delivery pump is fixedly connected to the inside of the top end of the first cooling plate, a heat sink is fixedly connected to the right side of the first delivery pump, a second delivery pump is fixedly connected to the right side of the heat sink, a second cooling plate is fixedly connected to the outside of the second delivery pump, a second cooling fan opposite to the top and bottom is fixedly connected to the right side of the second cooling plate, a second connecting pipe is fixedly connected to the bottom end of the second cooling plate, a heat sink is fixedly connected to the outside of the heat sink, and a third heat sink opposite to the top and bottom is fixedly connected to the front end of the heat sink.

[0008] Preferably, the first cooling plate is fixedly connected to the heat dissipation tower.

[0009] Preferably, the second cooling plate is fixedly connected to the heat dissipation tower.

[0010] Preferably, a distance of 0.5 cm is set between the heat dissipation tower and the voltage reducer.

[0011] Preferably, a fixing frame which is opposite to each other up and down is fixedly connected to the outer side of the heat dissipation tower, and the fixing frame is fixedly connected to the step-down device.

[0012] Preferably, the third heat dissipation fan is fixedly connected to the fixing frame.

[0013] Preferably, evenly distributed temperature sensors are fixedly connected to the top of the voltage reducer, and a protector is fixedly connected to the bottom side of the rear end of the voltage reducer.

[0014] Preferably, a connecting wire is fixedly connected to the rear end of the protector.

[0015] The working principle and beneficial effects of the utility model are:

[0016] In the utility model, the first delivery pump and the second delivery pump drive the cooling liquid in the cooling pipe, the first connecting pipe, the first cooling plate, the heat dissipation pipe, the second cooling plate and the second connecting pipe to circulate, so that the cooling liquid is put into operation, and the heat transferred from the voltage reducer to the cooling plate is replaced by the cooling liquid inside the cooling pipe, and then the heat transferred to the outer wall by the cooling of the heat dissipation pipe, the first cooling plate and the second cooling plate is respectively dissipated by the heat dissipation tower, the first cooling fan and the second cooling fan, so as to cool the cooling liquid, so as to achieve continuous cooling of the voltage reducer, and the voltage reducer after the cyclic cooling treatment can usually work more stably. By lowering the temperature, the heat accumulation of the internal components can be reduced, so as to improve the stability and performance of the circuit, and at the same time, the operating temperature of the voltage reducer can be continuously monitored by multiple temperature sensors, and the voltage reducer can be protected from overvoltage by the protector, and after overvoltage, the power can be cut off in time to protect the voltage reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 It is a side view stereoscopic structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the front three-dimensional structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the cooling plate of the utility model;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the heat dissipation pipe of the utility model;

[0022] Figure 5 For the utility model Figure 4 Enlarged structural diagram at A in the middle.

[0023] In the figure: 1. voltage reducer; 2. heat sink; 3. temperature sensor; 4. protector; 5. connecting wire; 6. cooling plate; 7. cooling pipe; 8. first connecting pipe; 9. heat sink; 10. fixing frame; 11. first cooling plate; 12. first cooling fan; 13. first delivery pump; 14. heat sink; 15. second delivery pump; 16. second cooling plate; 17. second cooling fan; 18. second connecting pipe; 19. third cooling fan. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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.

[0025] Example 1

[0026] A preferred embodiment of a voltage reducer with overvoltage protection function provided by the utility model is as follows Figures 1 to 5 As shown: a voltage reducer with overvoltage protection function, including a voltage reducer 1, a heat sink 2 evenly distributed is fixedly connected to the outside of the voltage reducer 1, the heat sink 2 is fixed by the voltage reducer 1, a cooling plate 6 is fixedly connected to the bottom of the voltage reducer 1, the cooling plate 6 is fixed by the voltage reducer 1, a cooling pipe 7 is fixedly connected to the inside of the cooling plate 6, the cooling pipe 7 is fixed by the cooling plate 6, and the heat inside the cooling plate 6 is replaced by the coolant inside the cooling pipe 7, so as to cool the cooling plate 6, and the left front end of the cooling pipe 7 is fixed A first connecting pipe 8 is connected, the first connecting pipe 8 is fixed by the cooling pipe 7, a first cooling plate 11 is fixedly connected to the top of the first connecting pipe 8, the cooling pipe 7 and the first cooling plate 11 are connected by the first connecting pipe 8, a first cooling fan 12 opposite to each other is fixedly connected to the left side of the first cooling plate 11, the first cooling fan 12 is fixed by the first cooling plate 11, and the heat on the outer wall of the first cooling plate 11 is dissipated by the first cooling fan 12, and a first delivery pump 13 is fixedly connected to the inner side of the top of the first cooling plate 11 The first delivery pump 13 is fixed by the first cooling plate 11, and a heat dissipation pipe 14 is fixedly connected to the right side of the first delivery pump 13. The heat dissipation pipe 14 is connected by the first delivery pump 13, and a second delivery pump 15 is fixedly connected to the right side of the heat dissipation pipe 14. The first delivery pump 13 and the second delivery pump 15 are connected by the heat dissipation pipe 14. A second cooling plate 16 is fixedly connected to the outside of the second delivery pump 15, and the second delivery pump 15 is fixed by the second cooling plate 16. A second cooling fan 17 opposite to each other is fixedly connected to the right side of the second cooling plate 16, and the second cooling fan 17 is fixed by the second cooling plate 16. A second connecting pipe 18 is fixedly connected to the bottom end of the second cooling plate 16, and the second connecting pipe 18 is fixed by the second cooling plate 16. A heat dissipation tower 9 is fixedly connected to the outside of the heat dissipation pipe 14, and the heat of the outer wall of the heat dissipation pipe 14 is replaced by the heat dissipation tower 9. A third heat dissipation fan 19 evenly distributed is fixedly connected to the front end of the heat dissipation tower 9, and the hot air that is heat-exchanged between the inside of the heat dissipation tower 9 and the heat dissipation tower 9 is extracted and discharged by the third heat dissipation fan 19.

[0027] In this embodiment, the first cooling plate 11 is fixedly connected to the heat dissipation tower 9 .

[0028] In this embodiment, the second cooling plate 16 is fixedly connected to the heat dissipation tower 9 , and the first cooling plate 11 and the second cooling plate 16 are fixed simultaneously by the heat dissipation tower 9 .

[0029] In this embodiment, a distance of 0.5 cm is set between the heat dissipation tower 9 and the step-down device 1. The distance between the heat dissipation tower 9 and the step-down device 1 allows air inside the heat dissipation tower 9 to circulate.

[0030] In this embodiment, the outer side of the heat dissipation tower 9 is fixedly connected with a fixing frame 10 which is opposite to each other up and down. The fixing frame 10 is fixedly connected to the step-down device 1 . The heat dissipation tower 9 can be fixed on the step-down device 1 through the fixing frame 10 .

[0031] In this embodiment, the third heat dissipation fan 19 is fixedly connected to the fixing frame 10 , and the third heat dissipation fan 19 is fixed by the fixing frame 10 .

[0032] Example 2

[0033] Based on Example 1, a preferred embodiment of a voltage reducer with overvoltage protection function provided by the present invention is as follows: Figures 1 to 5 As shown: the top of the voltage reducer 1 is fixedly connected with uniformly distributed temperature sensors 3, the bottom side of the rear end of the voltage reducer 1 is fixedly connected with a protector 4, and the temperature sensor 3 and the protector 4 are fixed at the same time through the voltage reducer 1.

[0034] In this embodiment, a connecting wire 5 is fixedly connected to the rear end of the protector 4 , and the connecting wire 5 is fixed by the protector 4 .

[0035] The working principle and use process of the utility model are as follows: when the voltage reducer with overvoltage protection function is running, the voltage reducer 1 is first detected by multiple temperature sensors 3, and the voltage reducer 1 is protected by the protector 4 to avoid overvoltage. At the same time, when the voltage reducer 1 is running and generating heat, the heat on the voltage reducer 1 is replaced by the cooling plate 6, and then the first delivery pump 13 and the second delivery pump 15 drive the cooling liquid in the cooling pipe 7, the first connecting pipe 8, the first cooling plate 11, the heat dissipation pipe 14, the second cooling plate 16 and the second connecting pipe 18 to circulate, so that the cooling liquid is put into operation, and at the same time, the first cooling fan 12, the second cooling fan 17 and the heat dissipation tower 9 are used to replace the heat of the first cooling plate 11, the second cooling plate 16 and the outer wall of the heat dissipation pipe 14, so as to replace the heat of the internal cooling liquid, and the hot air after the heat dissipation between the inside of the heat dissipation tower 9 and the heat dissipation tower 9 is extracted and discharged by the third heat dissipation fan 19, so as to circulate and cool the cooling liquid.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A voltage reducer with overvoltage protection function, comprising a voltage reducer (1), characterized in that: The outer side of the voltage reducer (1) is fixedly connected to a uniformly distributed heat dissipation plate (2), the bottom end of the voltage reducer (1) is fixedly connected to a cooling plate (6), the inner side of the cooling plate (6) is fixedly connected to a cooling pipe (7), the left side of the front end of the cooling pipe (7) is fixedly connected to a first connecting pipe (8), the top end of the first connecting pipe (8) is fixedly connected to a first cooling plate (11), the left side of the first cooling plate (11) is fixedly connected to a first heat dissipation fan (12) opposite to each other up and down, the inner side of the top end of the first cooling plate (11) is fixedly connected to a first delivery pump (13), and the first A heat dissipation pipe (14) is fixedly connected to the right side of a delivery pump (13), a second delivery pump (15) is fixedly connected to the right side of the heat dissipation pipe (14), a second cooling plate (16) is fixedly connected to the outer side of the second delivery pump (15), a second heat dissipation fan (17) opposite to each other in upper and lower directions is fixedly connected to the right side of the second cooling plate (16), a second connecting pipe (18) is fixedly connected to the bottom end of the second cooling plate (16), a heat dissipation tower (9) is fixedly connected to the outer side of the heat dissipation pipe (14), and a third heat dissipation fan (19) evenly distributed is fixedly connected to the front end of the heat dissipation tower (9).

2. A voltage reducer with overvoltage protection function according to claim 1, characterized in that: The first cooling plate (11) is fixedly connected to the heat dissipation tower (9).

3. The voltage reducer with overvoltage protection function according to claim 1, characterized in that: The second cooling plate (16) is fixedly connected to the heat dissipation tower (9).

4. The voltage reducer with overvoltage protection function according to claim 1, characterized in that: A distance of 0.5 cm is set between the heat dissipation tower (9) and the voltage reducer (1).

5. The voltage reducer with overvoltage protection function according to claim 1, characterized in that: The outer side of the heat dissipation tower (9) is fixedly connected to a fixing frame (10) which is opposite to each other in an upper and lower direction, and the fixing frame (10) is fixedly connected to the voltage reducer (1).

6. The voltage reducer with overvoltage protection function according to claim 1, characterized in that: The third heat dissipation fan (19) is fixedly connected to the fixing frame (10).

7. The voltage reducer with overvoltage protection function according to claim 1, characterized in that: The top end of the voltage reducer (1) is fixedly connected to a uniformly distributed temperature sensor (3), and the bottom side of the rear end of the voltage reducer (1) is fixedly connected to a protector (4).

8. The voltage reducer with overvoltage protection function according to claim 7, characterized in that: The rear end of the protector (4) is fixedly connected with a connecting wire (5).

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