Waterproof high-frequency switching power supply

Abstract

The utility model discloses a waterproof high-frequency switching power supply, which comprises a shell, and an anode copper bar and a cathode copper bar which extend out of the shell from the inside of the shell, the shell is hermetically connected with a plurality of waterproof pipes, one end of each waterproof pipe, which is far away from the shell, is provided with a sealing cover to open or close a water discharge pipe, and the anode copper bar and the cathode copper bar are all positioned in the waterproof pipes. According to the waterproof high-frequency switching power supply, air cooling heat dissipation is replaced by liquid cooling so as to eliminate an air outlet, the closed joint is used for providing cooling liquid for liquid cooling, and the waterproof pipe is combined for protecting the positive and negative copper bars, so that the whole power supply is in a closed state; the interference of damp air on electrical elements in the power supply is avoided while the heat dissipation effect is ensured, the waterproofness of the power supply is improved, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of high-frequency switching power supplies, in particular to a waterproof high-frequency switching power supply. Background Technique

[0002] With the development of power electronics technology, the relationship between power electronic devices and people's work and life has become increasingly close, and all electronic devices are inseparable from a reliable power supply. Among them, a high-frequency switching power supply is a power supply that works at high frequency through MOSFET or IGBT, and is widely used because of its advantages such as high efficiency and miniaturization.

[0003] During the operation of a high-frequency switching power supply, electrical components such as rectification components and transformer components in its electrical system will generate heat, which will in turn cause the operating temperature of the high-frequency switching power supply to rise. Therefore, in order to prevent the high-frequency switching power supply from malfunctioning due to high temperature, a fan is generally installed in the housing of the high-frequency switching power supply to dissipate heat from the electrical components through the fan. However, for some humid environments, since the fan needs to connect the inside and outside of the power supply housing for ventilation, external moisture can easily enter the power supply housing, which will affect the service life of each electrical component at least, and seriously cause a short circuit of the power supply and pose a safety hazard.

[0004] Therefore, in combination with the above existing technical problems, it is necessary to provide a new technical solution. Content of the Utility Model

[0005] The purpose of the utility model is to provide a high-frequency switching power supply that can effectively prevent water and moisture while ensuring the heat dissipation effect and has better safety performance.

[0006] To solve the above technical problems, the utility model provides a waterproof high-frequency switching power supply, and the specific technical solution is as follows:

[0007] A waterproof high-frequency switching power supply includes a housing, a positive copper bar and a negative copper bar extending from the inside of the housing to the outside of the housing. A plurality of waterproof pipes are hermetically connected to the housing, and a sealing cover is provided at one end of the waterproof pipe away from the housing to open or close the water discharge pipe. The positive copper bar and the negative copper bar are both located in the waterproof pipe. At least one cooling pipe is densely arranged inside the housing, and a plurality of fixed joints are hermetically connected to the side wall of the housing. Both ends of the cooling pipe are connected to the coolant conduit outside the housing through a fixed joint, and an elastic rubber sheet is provided in the fixed joint, and the sealing rubber sheet makes the fixed joint airtight in the non-connection state.

[0008] Preferably, a movable joint is installed at one end of the coolant conduit connected to the fixed joint. The movable joint is adapted to the fixed joint, and the movable joint includes a conduit plug. One end of the conduit plug extends into the coolant conduit, and the other end penetrates through the elastic rubber sheet and communicates with the cooling pipe.

[0009] Preferably, one end of the conduit plug connected to the cooling pipe is pointed. A cut is provided in the center of the elastic rubber to facilitate the insertion of the conduit plug, and the cut is in a closed state under the elastic influence of the elastic rubber in the non-connected state.

[0010] Preferably, the fixed joint includes a fixed seat sealed to the side wall of the housing. A hollow connecting pipe is provided in the center of the fixed seat. The connecting pipe penetrates the fixed seat and the housing and communicates with the cooling pipe. The elastic rubber is located in the connecting pipe to seal the connecting pipe.

[0011] Preferably, the movable joint includes a movable seat connected to the coolant conduit. A connecting groove is provided on one side of the movable seat away from the coolant conduit. The size of the connecting groove is adapted to the connecting pipe, and one end of the conduit plug is located in the connecting groove, and the other end penetrates the movable seat and extends into the coolant conduit.

[0012] Preferably, a fixing groove is provided on one side of the fixed seat away from the housing. The size of the fixing groove is adapted to the outer diameter of the movable seat, and an annular protrusion is provided in the fixing groove to form a limiting ring. A limiting groove is provided on the outer edge of the movable seat. The limiting ring is adapted to the limiting groove to facilitate the engagement of the movable seat and the fixed seat.

[0013] Preferably, a limiting buckle is fixedly provided around the outer side of one end of the connecting pipe inserted into the connecting groove, and a buckle adapted to the limiting buckle is provided in the connecting groove to facilitate the connection and fixation of the connecting pipe and the connecting groove.

[0014] Preferably, an annular conduit seat is further provided on one side of the movable seat connected to the coolant conduit. One end of the coolant conduit is sleeved and fixed around the conduit seat.

[0015] Preferably, a spring hinge shaft is provided at the end of the waterproof pipe, and the sealing cover is hinged to the waterproof pipe through the spring hinge shaft.

[0016] Preferably, a handle is further connected to the sealing cover to facilitate the opening and closing of the sealing cover.

[0017] A waterproof high-frequency switching power supply of the present invention has the following beneficial effects:

[0018] The waterproof high-frequency switching power supply of the present invention replaces air cooling with liquid cooling to eliminate the air outlet. At the same time, a closed joint is used to provide coolant for liquid cooling, and a waterproof pipe is combined to protect the positive and negative copper bars, so that the power supply is in an overall closed state, ensuring the heat dissipation effect while avoiding the interference of humid air on the internal electrical components of the power supply, improving the waterproof performance of the power supply, and reducing potential safety hazards;

[0019] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. Brief Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions of the present utility model, the drawings required for use in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 It is a schematic structural diagram of a waterproof high-frequency switching power supply;

[0022] Figure 2 is Figure 1 a side view of the waterproof high-frequency switching power supply in

[0023] Figure 3 is Figure 2 a cross-sectional view of the fixed joint in

[0024] Figure 4 is Figure 2 a cross-sectional view of the movable joint in

[0025] Wherein, 1 - housing; 11 - positive copper busbar; 12 - negative copper busbar; 2 - waterproof pipe; 21 - sealing cover; 22 - spring hinge shaft; 23 - handle; 3 - fixed joint; 31 - fixed seat; 311 - fixed groove; 312 - limiting ring; 32 - connecting pipe; 321 - elastic rubber; 322 - limiting buckle; 4 - movable joint; 41 - movable seat; 411 - connecting groove; 412 - buckle; 413 - limiting groove; 42 - conduit plug; 43 - conduit seat; 5 - coolant conduit. Detailed Description of the Embodiments

[0026] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation of the present utility model. Embodiment

[0027] Please refer to Figures 1 to 4, A waterproof high-frequency switching power supply, including a housing 1, a positive copper bar 11 and a negative copper bar 12 extending from the inside of the housing to the outside of the housing. A plurality of waterproof pipes 2 are sealingly connected to the housing. One end of the waterproof pipe away from the housing is provided with a sealing cover 21 to open or close the water discharge pipe, and the positive copper bar and the negative copper bar are both located in the waterproof pipe; At least one cooling pipe is densely arranged inside the housing, and a plurality of fixed joints 3 are sealingly connected to the side wall of the housing. Both ends of the cooling pipe are connected to a coolant conduit 5 outside the housing through a fixed joint. An elastic rubber sheet 321 with elasticity is provided in the fixed joint, and the sealing rubber sheet makes the fixed joint airtight in the non-connected state.

[0028] One end of the coolant conduit 5 connected to the fixed joint 3 is installed with a movable joint 4. The movable joint is adapted to the fixed joint, and the movable joint includes a conduit plug 42. One end of the conduit plug extends into the coolant conduit, and the other end communicates with the cooling pipe by penetrating the elastic rubber sheet.

[0029] One end of the conduit plug connected to the cooling pipe is in a pointed shape. A cut is provided at the center of the elastic rubber sheet 321 to facilitate the insertion of the conduit plug. And in the non-connected state, the cut is in a closed state under the influence of the elasticity of the elastic rubber sheet.

[0030] The fixed joint 3 includes a fixed seat 31 sealingly fixed on the side wall of the housing. A hollow connecting pipe 32 is provided at the center of the fixed seat. The connecting pipe penetrates the fixed seat and the housing and communicates with the cooling pipe. The elastic rubber sheet 321 is located in the connecting pipe to seal the connecting pipe.

[0031] The movable joint 4 includes a movable seat 41 connected to the coolant conduit 5. A connecting groove 411 is opened on the side of the movable seat away from the coolant conduit. The size of the connecting groove is adapted to the connecting pipe 32. One end of the conduit plug 42 is located in the connecting groove, and the other end penetrates the movable seat and extends into the coolant conduit.

[0032] A fixing groove 311 is opened on the side of the fixed seat 31 away from the housing. The size of the fixing groove is adapted to the outer diameter of the movable seat 41. And a ring-shaped protrusion is provided in the fixing groove to form a limiting ring 312. A limiting groove 413 is opened on the outer edge of the movable seat. The limiting ring is adapted to the limiting groove to facilitate the engagement of the movable seat and the fixed seat.

[0033] A limiting buckle 322 is fixedly arranged in a ring shape on the outer side of one end of the connecting pipe 32 inserted into the connecting groove 411. A buckle 412 adapted to the limiting buckle is provided in the connecting groove to facilitate the connection and fixation of the connecting pipe and the connecting groove.

[0034] A ring-shaped conduit seat 43 is further provided on the side of the movable seat 41 connected to the coolant conduit 5. One end of the coolant conduit is sleeved and fixed on the periphery of the conduit seat.

[0035] The end of the waterproof pipe 2 is provided with a spring hinge shaft 22, and the sealing cover 21 is hinged to the waterproof pipe through the spring hinge shaft.

[0036] A handle 23 is further connected to the sealing cover 21 to facilitate the opening and closing of the sealing cover.

[0037] The beneficial effects of the present utility model are as follows: By replacing air cooling with liquid cooling to eliminate the air outlet, and at the same time using a closed connector to provide coolant for liquid cooling, combined with the waterproof pipe to protect the positive and negative copper bars, the power supply is in an overall closed state, which not only ensures the heat dissipation effect but also avoids the interference of humid air on the internal electrical components of the power supply, improves the waterproof performance of the power supply, and reduces potential safety hazards.

[0038] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present utility model. Those of ordinary skill in the art can make changes, modifications, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A waterproof high-frequency switching power supply, characterized in that: It includes a housing (1), a positive copper busbar (11) and a negative copper busbar (12) that extend out of the housing from inside the housing. A plurality of waterproof pipes (2) are sealingly connected to the housing. A sealing cover (21) is provided at one end of the waterproof pipe away from the housing to open or close the water discharge pipe. The positive copper busbar and the negative copper busbar are both located in the waterproof pipes. At least one cooling pipe is densely arranged inside the housing. A plurality of fixed joints (3) are sealingly connected to the side wall of the housing. Both ends of the cooling pipe are connected to a coolant conduit (5) outside the housing through a fixed joint. An elastic rubber sheet (321) with elasticity is provided in the fixed joint. In the non-connected state, the sealing rubber sheet makes the fixed joint airtight.

2. The waterproof high-frequency switching power supply according to claim 1, wherein: An active joint (4) is installed at one end of the coolant conduit (5) connected to the fixed joint (3). The active joint is adapted to the fixed joint. The active joint includes a conduit plug (42). One end of the conduit plug extends into the coolant conduit, and the other end communicates with the cooling pipe by penetrating the elastic rubber sheet.

3. The waterproof high-frequency switching power supply according to claim 2, characterized in that: One end of the conduit plug connected to the cooling pipe is in a pointed shape. A cut is provided at the center of the elastic rubber sheet (321) to facilitate the insertion of the conduit plug. And in the non-connected state, the cut is in a closed state under the elastic influence of the elastic rubber sheet.

4. The waterproof high-frequency switching power supply according to claim 2, characterized in that: The fixed joint (3) includes a fixed seat (31) sealingly fixed on the side wall of the housing. A hollow connecting pipe (32) is provided at the center of the fixed seat. The connecting pipe penetrates the fixed seat and the housing and communicates with the cooling pipe. The elastic rubber sheet (321) is located in the connecting pipe to seal the connecting pipe.

5. The waterproof high-frequency switching power supply according to claim 4, wherein: The active joint (4) includes an active seat (41) connected to the coolant conduit (5). A connecting groove (411) is provided on the side of the active seat away from the coolant conduit. The size of the connecting groove is adapted to the connecting pipe (32). One end of the conduit plug (42) is located in the connecting groove, and the other end penetrates the active seat and extends into the coolant conduit.

6. The waterproof high-frequency switching power supply according to claim 5, characterized in that: A fixing groove (311) is provided on the side of the fixed seat (31) away from the housing. The size of the fixing groove is adapted to the outer diameter of the active seat (41). And a circular protrusion is provided in the fixing groove to form a limiting ring (312). A limiting groove (413) is provided on the outer edge of the active seat. The limiting ring is adapted to the limiting groove to facilitate the engagement of the active seat and the fixed seat.

7. The waterproof high-frequency switching power supply according to claim 5, characterized in that: A limiting buckle (322) is fixedly arranged in a ring shape on the outer side of one end of the connecting pipe (32) inserted into the connecting groove (411). A buckle (412) adapted to the limiting buckle is provided in the connecting groove to facilitate the connection and fixation of the connecting pipe and the connecting groove.

8. The waterproof high-frequency switching power supply according to claim 5, characterized in that: A circular conduit seat (43) is further provided on the side of the active seat (41) connected to the coolant conduit (5). One end of the coolant conduit is sleeved and fixed on the periphery of the conduit seat.

9. The waterproof high-frequency switching power supply according to claim 1, wherein: A spring hinge shaft (22) is provided at the end of the waterproof pipe (2). The sealing cover (21) is hinged to the waterproof pipe through the spring hinge shaft.

10. The waterproof high-frequency switching power supply according to claim 1, wherein: A handle (23) is further connected to the sealing cover (21) to facilitate the opening and closing of the sealing cover.

Images