Medical direct-current power supply device

Abstract

The utility model relates to the technical field of direct-current power supplies, in particular to a medical direct-current power supply device, which comprises a shell main body, a display screen, an adjusting button, a switch button and a wiring hole are arranged at the front end of the shell main body, a power transformer is fixedly mounted in the shell main body, an arc extinguishing groove is formed in the shell main body, and the power transformer is connected with the arc extinguishing groove. A wire plug matched with the wiring hole is fixedly installed on the side wall of the arc extinguishing groove. Certain air can be collected through the air collection hopper, the air can flow to the air spraying head along the air guide pipe at the moment, the diameter of the air spraying head is gradually reduced, and the air can be sprayed out of the air spraying head at high pressure, so that on one hand, in the wiring process, the air sprayed out of the air spraying head can cool a plug, and the temperature of the plug is reduced; on the other hand, in the wire pulling process, sprayed gas can quickly blow out electric arcs generated by wire pulling, the electric arcs can be prevented from being generated, and the safety effect of the wire plugging head is further improved.

Description

Technical Field

[0001] This utility model relates to the field of DC power supply technology, specifically a DC power supply device for medical use. Background Technology

[0002] A DC power supply is a device that maintains a constant voltage and current in a circuit, such as a dry cell battery, a storage battery, or a DC generator.

[0003] Due to inherent defects in DC power supplies, which always apply a constant voltage, an electric arc (spark) may occur at the moment the current is interrupted, especially under high voltage conditions, or there may be a risk of electric shock in the surrounding area. In the medical field, the frequent switching on and off of power can easily lead to danger.

[0004] Therefore, a DC power supply device for medical use is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a DC power supply device for medical use.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A medical DC power supply device includes: a housing body, the front end of which is provided with a display screen, adjustment buttons, a switch button, and wiring holes; a power transformer is fixedly installed inside the housing body; an arc-extinguishing groove is formed inside the housing body, and a plug head adapted to the wiring holes is fixedly installed on the side wall of the arc-extinguishing groove; a duct is also provided inside the housing body, one end of which extends to the side wall of the arc-extinguishing groove and is fixedly connected to an air jet head; the other end of which extends to the rear end of the housing body and is connected to an air collecting hopper; a heat dissipation assembly is also provided inside the housing body, the heat dissipation assembly including an air inlet at the rear end of the housing body, a cooling fan is fixedly installed inside the air inlet, and the air collecting hopper is located at the blades of the cooling fan.

[0008] Preferably, the air collecting hopper is arranged in a conical shape, the jet nozzle is perpendicular to the plug head, and the diameter of the jet nozzle gradually decreases from left to right.

[0009] Preferably, the power transformer is electrically connected to the display screen, adjustment buttons, switch buttons, and wiring holes.

[0010] Preferably, the display screen is located above the adjustment button, the switch button, and the wiring hole.

[0011] Preferably, the side wall of the outer shell body is also provided with an air outlet that communicates with the arc-extinguishing groove.

[0012] Preferably, the air inlet is located at the center of the rear end of the outer casing, and the rear end of the outer casing is also provided with a power socket electrically connected to the power transformer, and a protective frame is fixedly installed on the outside of the air inlet.

[0013] Preferably, heat dissipation holes are provided on both sides of the outer shell body.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. By setting up an arc-extinguishing component, when the cooling fan draws outside air into the main body of the casing, the air collection hopper can collect a certain amount of air. The air can then flow along the air guide pipe to the jet nozzle. As the diameter of the jet nozzle gradually decreases, the air can be ejected from the jet nozzle at high pressure. On the one hand, during the wiring process, the air ejected from the jet nozzle can cool the plug and ensure the safe use of the plug. On the other hand, during the wire unplugging process, the ejected gas can quickly extinguish the electric arc generated during wire unplugging, preventing the generation of electric arc and further improving the safety of the plug.

[0016] 2. By setting up a heat dissipation component, when the cooling fan is working, it can draw outside air into the main body of the casing. The outside air can compress the hot air generated by the power transformer and the corresponding electrical components inside the main body of the casing. The hot air can be discharged through the heat dissipation holes, which can dissipate heat from the inside of the main body of the casing, improve the service life of the power transformer and the corresponding electrical components, and further ensure the working effect of the DC power supply. In addition, the protective frame can isolate the outside of the air inlet hole, prevent damage to the cooling fan, and improve the safety of the DC power supply during the heat dissipation process. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of one side of the outer shell body in an embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the other side of the outer shell body in an embodiment of this utility model;

[0019] Figure 3 This is a side cross-sectional view of the outer shell body in an embodiment of the present utility model;

[0020] Figure 4 This is a cross-sectional structural diagram of the bottom end of the outer shell body in an embodiment of this utility model.

[0021] In the diagram: 1. Main body of the outer casing; 2. Heat dissipation holes; 3. Air outlet; 4. Wiring hole; 5. Switch button; 6. Adjustment button; 7. Display screen; 8. Protective frame; 9. Cooling fan; 10. Air inlet; 11. Power socket; 12. Arc extinguishing groove; 13. Power transformer; 14. Air guide pipe; 15. Air collection hopper; 16. Plug in; 17. Air jet nozzle. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0024] Example 1:

[0025] Please see Figures 1 to 3 A power supply device includes: a housing body 1, with a display screen 7, adjustment button 6, switch button 5 and wiring hole 4 at the front end of the housing body 1; a power transformer 13 fixedly installed inside the housing body 1; an arc-extinguishing groove 12 opened inside the housing body 1; a plug 16 adapted to the wiring hole 4 fixedly installed on the side wall of the arc-extinguishing groove 12; an air guide pipe 14 also provided inside the housing body 1; one end of the air guide pipe 14 extends to the side wall of the arc-extinguishing groove 12 and is fixedly connected to an air jet head 17; the other end of the air guide pipe 14 extends to the rear end of the housing body 1 and is connected to an air collecting bucket 15; and a heat dissipation assembly is also provided inside the housing body 1, including an air inlet 10 opened at the rear end of the housing body 1, a cooling fan 9 fixedly installed inside the air inlet 10, and the air collecting bucket 15 located at the blades of the cooling fan 9.

[0026] Please see Figure 3 The air collection hopper 15 is arranged in a conical shape, and the jet head 17 is perpendicular to the plug head 16. The diameter of the jet head 17 gradually decreases from left to right.

[0027] Please see Figure 3 The power transformer 13 is electrically connected to the display screen 7, adjustment button 6, switch button 5, and wiring hole 4.

[0028] Please see Figure 1 The display screen 7 is located above the adjustment button 6, the switch button 5, and the wiring hole 4.

[0029] Please see Figure 1The outer shell body 1 also has an air outlet 3 that is connected to the arc extinguishing groove 12 on its side wall.

[0030] In this embodiment, during use, when the cooling fan 9 drives outside air into the outer casing 1, the air collection hopper 15 can collect a certain amount of air. At this time, the air can flow along the air guide pipe 14 to the jet nozzle 17. Since the diameter of the jet nozzle 17 gradually decreases, the air can be ejected from the jet nozzle 17 at high pressure. On the one hand, during the wiring process, the air ejected from the jet nozzle 17 can cool down the plug 16, ensuring the safe use of the plug 16. On the other hand, during the wire pulling process, the ejected gas can quickly extinguish the electric arc generated during wire pulling, preventing the generation of electric arc and further improving the safety effect of the plug 16.

[0031] Example 2:

[0032] Please see Figures 1 to 4 A medical DC power supply device, wherein the air inlet 10 is located at the center of the rear end of the outer shell 1, and the rear end of the outer shell 1 is also provided with a power socket 11 electrically connected to the power transformer 13, and a protective frame 8 is fixedly installed on the outside of the air inlet 10.

[0033] Please see Figure 4 Heat dissipation holes 2 are provided on both sides of the outer shell body 1.

[0034] In this embodiment, when the cooling fan 9 is working, it can draw outside air into the outer casing 1. The outside air can compress the hot air generated by the power transformer 13 and the corresponding electrical components inside the outer casing 1. The hot air can be discharged through the heat dissipation hole 2, which can dissipate heat inside the outer casing 1, improve the service life of the power transformer 13 and the corresponding electrical components, and further ensure the working effect of the DC power supply. The protective frame 8 can isolate the outside of the air inlet 10, prevent damage to the cooling fan 9, and improve the safety of the DC power supply during heat dissipation.

[0035] Working principle: First, connect the wires through the power socket 11 and wiring hole 4. Then, use the DC power supply through the switch button 5, adjustment button 6, and display screen 7. During use, when the cooling fan 9 is working, it draws outside air into the outer casing 1. The outside air compresses the hot air generated by the power transformer 13 and the corresponding electrical components inside the outer casing 1, allowing the hot air to be discharged through the heat dissipation hole 2. This dissipates heat from the outer casing 1, extending the lifespan of the power transformer 13 and the corresponding electrical components, and further ensuring the working effect of the DC power supply. The protective frame 8 isolates the outside of the air inlet 10. To prevent damage to the cooling fan 9 and improve safety during DC power supply cooling, when the cooling fan 9 draws outside air into the main body 1, the air collection hopper 15 collects a certain amount of air. The air then flows along the air guide pipe 14 to the nozzle 17. As the diameter of the nozzle 17 gradually decreases, the air is ejected at high pressure. On the one hand, during wiring, the air ejected from the nozzle 17 cools the connector 16, ensuring its safe use. On the other hand, during wire unplugging, the ejected gas quickly extinguishes the arc generated during wire unplugging, preventing arc generation and further improving the safety of the connector 16.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A medical direct-current power supply device, comprising: The shell body (1) is characterized in that: the front end of the shell body (1) is provided with a display screen (7), an adjusting button (6), a switch button (5) and a wiring hole (4), a power transformer (13) is fixedly installed in the shell body (1), an arc extinguishing groove (12) is formed in the shell body (1), a plug (16) matched with the wiring hole (4) is fixedly installed on the side wall of the arc extinguishing groove (12), a gas guide pipe (14) is further arranged in the shell body (1), one end of the gas guide pipe (14) extends to the side wall of the arc extinguishing groove (12) and is fixedly connected with a gas injection head (17), the other end of the gas guide pipe (14) extends to the rear end of the shell body (1) and is communicated with a gas collecting hopper (15), a heat dissipation assembly is further arranged in the shell body (1), the heat dissipation assembly comprises an air inlet hole (10) formed in the rear end of the shell body (1), and a heat dissipation fan (9) is fixedly installed in the air inlet hole (10), the gas collecting hopper (15) is located at the fan blade of the heat dissipation fan (9).

2. The medical DC power supply apparatus according to claim 1, wherein: The gas collecting hopper (15) is in the form of a tapered cylinder, the gas injection head (17) is perpendicular to the plug (16), and the diameter of the gas injection head (17) gradually decreases from left to right.

3. The medical DC power supply apparatus according to claim 2, wherein: The power transformer (13) is electrically connected with the display screen (7), the adjusting button (6), the switch button (5) and the wiring hole (4).

4. The medical DC power supply apparatus according to claim 3, wherein: The display screen (7) is located above the adjusting button (6), the switch button (5) and the wiring hole (4).

5. The medical DC power supply apparatus according to claim 2, wherein: An air outlet hole (3) communicated with the arc extinguishing groove (12) is further formed in the side wall of the shell body (1).

6. The medical DC power supply apparatus according to claim 1, wherein: The air inlet hole (10) is located at the center of the rear end of the shell body (1), a power supply jack (11) electrically connected with the power transformer (13) is further arranged at the rear end of the shell body (1), and a protection frame (8) is fixedly installed outside the air inlet hole (10).

7. The medical DC power supply apparatus according to claim 6, wherein: Heat dissipation holes (2) are formed in the two side walls of the shell body (1).

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