Circuit breaker with heat dissipation function

Abstract

A circuit breaker with a heat dissipation function disclosed by the present invention comprises a lower shell and an upper shell, the middle part of the upper surface of the lower shell is provided with a first placement cavity, the middle part of the bottom of the first placement cavity is provided with a frame body, the middle part of the frame body is provided with a square groove, and the upper surface of the frame body is provided with two sliding grooves. Air cooling heat dissipation is carried out on electrical components in the frame body through the heat dissipation fan, meanwhile, a water pump in the water tank sends a water source into the heat dissipation mechanism through a pipeline and a water inlet hole, and cold water flowing in from the water inlet hole flows into the bottom of the mounting groove of the bottom plate through a first water flow channel and a second water flow channel formed by the two heat dissipation plates; the surface of the bottom plate is cooled, then the bottom of the electrical component is cooled, the electrical component is kept at the normal working temperature all the time, the electrical component is cooled through the combined action of the air cooling mode and the water cooling mode, the cooling effect is good, and then the service life of the electrical component is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers, and in particular to a circuit breaker with a heat dissipation function. Background Art

[0002] The most common circuit safety device is the circuit breaker, which is an electrical appliance that has both the function of a manual switch and can automatically perform loss of voltage, undervoltage, overload and short-circuit protection. It can automatically cut off the circuit when a serious overload or short circuit or undervoltage fault occurs. The circuit breaker is an important electrical device for the protection and operation of the power system. It can be used to distribute electrical energy, start asynchronous motors infrequently, and protect power lines and motors. There are many structures and types of circuit breakers, but basically they are composed of a conductive main circuit, insulating supports, arc extinguishing chambers and operating mechanisms. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use.

[0003] However, the existing circuit breakers have some shortcomings. In actual use, it is difficult to cool down the electrical components inside the circuit breaker, which may reduce the durability of the electronic components, making the circuit breaker very susceptible to damage and reduced efficiency.

[0004] Therefore, it is necessary to provide a circuit breaker with heat dissipation function to solve the above technical problems. Summary of the invention

[0005] The object of the present invention is to provide a circuit breaker with a heat dissipation function to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a circuit breaker with heat dissipation function, comprising a lower shell and an upper shell, a first placement cavity is provided in the middle of the upper surface of the lower shell, a frame is provided in the middle of the bottom of the first placement cavity, a square groove is provided in the middle of the frame, two slide grooves are provided on the upper surface of the frame, adjustment plates are slidably provided in the two slide grooves, guide pillars are slidably provided at both ends of the upper surface of the adjustment plate, an adjustment nut is threadedly connected in the middle of the upper surface of the adjustment plate, two plug holes are provided on the side wall of the adjustment plate, a heat dissipation fan is plugged into the plug hole, the blades of the heat dissipation fan are located in the frame, the heat dissipation fan is electrically connected to an external power supply, an electrical component is provided in the square groove, a handle of the electrical component passes through the top of the upper shell, a placement groove is provided in the middle of the bottom of the first placement cavity of the lower shell, a heat dissipation mechanism is provided in the placement groove, a connecting hole is provided on the side wall of the placement groove, a water tank is provided in the first placement cavity, the water tank is located outside the frame, and the water tank is connected to the heat dissipation mechanism through a pipeline.

[0007] As a preferred technical solution of the present invention, the heat dissipation mechanism includes a bottom plate and a heat dissipation part, a mounting groove is provided in the middle of the bottom plate, the mounting groove structure is square, and positioning columns are provided at the four corners of the bottom of the mounting groove, the heat dissipation part includes two heat dissipation plates, and a plurality of heat dissipation holes are evenly distributed on the surface of the heat dissipation plate, the heat dissipation hole structure is a long strip hole, and the four corners of the long strip hole are rounded, the heat dissipation hole is inclined, and the angle between the heat dissipation hole and a side wall of the heat dissipation plate is 45°, and four limiting holes are provided at the four corners of the heat dissipation plate, two of which are The heat sinks are arranged in reverse fit, and the multiple heat dissipation holes of the two heat sinks are vertically fit and pressed against each other to form multiple first water flow channels and second water flow channels, and the first water flow channels and the second water flow channels are both connected to the bottom of the mounting groove, and an end cover is provided on the bottom plate, and water inlet holes and water outlet holes are respectively provided on both side walls of the end cover, and the water inlet holes are connected to the water outlet of the water tank through a pipe passing through the connecting hole, and the water outlet holes are connected to the water return port of the water tank through a pipe passing through the connecting hole, and a water inlet is provided on the top of the water tank, and a water pump is provided in the water tank.

[0008] As a preferred technical solution of the present invention, third grooves are provided on the tops of both side walls of the first placement cavity, wedge blocks are arranged in the third grooves, a cavity and a second placement cavity are provided on the bottom of the upper shell body, the second placement cavity is connected to the cavity, four positioning holes are provided on the top of the upper shell body, the four positioning holes pass through the cavity, the top of the guide column is fixedly arranged in the positioning hole, two mounting holes are provided on the top of the upper shell body, the two mounting holes pass through the cavity, the top of the adjusting nut is rotatably arranged in the mounting hole, and clamping blocks are provided on the ends of both side walls of the second placement cavity, the clamping blocks are clamped with the wedge blocks.

[0009] As a preferred technical solution of the present invention, three first grooves are formed at both ends of the upper surface of the lower shell, and three fourth grooves are formed at both front and rear ends of the bottom of the upper shell.

[0010] As a preferred technical solution of the present invention, four first threaded holes are opened on the upper surface of the lower shell body, and four first locking holes are opened on the bottom of the upper shell body. The four first locking holes are opposite to the four first threaded holes, and first locking nuts are arranged in the four first locking holes and the four first threaded holes.

[0011] As a preferred technical solution of the present invention, four second threaded holes are opened on the upper surface of the lower shell body, and four second locking holes are opened on the bottom of the upper shell body. The four second locking holes are opposite to the four second threaded holes, and second locking nuts are arranged in the four second locking holes and the four second threaded holes.

[0012] As a preferred technical solution of the present invention, a second groove is opened on the upper surface of the lower shell, a sealing gasket is arranged in the second groove, and a snap block is arranged at the bottom of the upper shell, the snap block is inserted in the second groove and presses the sealing gasket tightly.

[0013] As a preferred technical solution of the present invention, a cover is provided on the top of the upper shell, and an opening of the cover is matched with a handle of the electrical component.

[0014] As a preferred technical solution of the present invention, through holes are provided on the front and rear end surfaces of the bottom of the first placement cavity, two wiring terminals are provided at both ends of the electrical component, and wiring nuts are threadedly connected to the four wiring terminals. The four wiring terminals respectively pass through the four through holes and extend into the first groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The circuit breaker with heat dissipation function described in the present invention performs air cooling and heat dissipation on electrical components in a frame through a heat dissipation fan. When it is necessary to adjust the height of the heat dissipation fan relative to the electrical components, it is only necessary to change the height of the adjustment plate, rotate the adjustment nut to push the adjustment plate up and down, and the adjustment plate slides along the slide groove and the guide column without deviation. At the same time, the height of the heat dissipation fan can be adjusted at will, so that the heat dissipation fan is aimed at the part of the electrical component that generates more heat to blow directly, and the heat dissipation effect is better. At the same time, the water pump in the water tank sends water into the heat dissipation mechanism through the pipeline and the water inlet hole. The cold water flowing in from the water inlet hole flows into the bottom of the installation groove of the bottom plate through the first water flow channel and the second water flow channel formed by the two heat dissipation plates, dissipates the heat on the surface of the bottom plate, and then dissipates the heat on the bottom of the electrical components, so that the electrical components are always kept at a normal working temperature. The electrical components are dissipated by the combined action of the air cooling and water cooling modes, and the heat dissipation effect is good, thereby extending the service life of the electrical components. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is the overall structural front view of the present invention;

[0019] Figure 2 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0020] Figure 3 is a three-dimensional schematic diagram of the lower shell structure of the present invention;

[0021] Figure 4 is a three-dimensional schematic diagram of the upper shell structure of the present invention;

[0022] Figure 5 It is a three-dimensional schematic diagram of the adjustment plate installation structure of the present invention;

[0023] Figure 6 It is a three-dimensional schematic diagram of the frame structure of the present invention;

[0024] Figure 7 It is a schematic diagram of installing the heat dissipation fan of the present invention;

[0025] Figure 8 It is a three-dimensional schematic diagram of the heat dissipation mechanism structure of the present invention;

[0026] Fig. 9 It is a three-dimensional exploded schematic diagram of the heat dissipation mechanism structure of the present invention;

[0027] Fig.10 This is a front view of the heat dissipation plate assembly structure of the present invention;

[0028] Fig.11 It is a three-dimensional schematic diagram of the heat dissipation plate combination structure of the present invention;

[0029] Fig.12 It is a three-dimensional schematic diagram of the heat dissipation plate structure of the present invention.

[0030] In the figure: 1. lower shell; 101. first placement cavity; 102. first slot; 103. second slot; 104. first threaded hole; 105. through hole; 106. second threaded hole; 107. third slot; 108. wedge; 109. placement groove; 110. connection hole; 2. upper shell; 201. cavity; 202. second placement cavity; 203. fourth slot; 204. first locking hole; 205. second locking hole; 206. positioning hole; 207. mounting hole; 208. clamping block; 209. clamping block; 3. electrical components; 31. wiring terminals ; 32. Wiring nut; 4. Cover; 5. Frame; 51. Square groove; 52. Slide groove; 6. Adjustment plate; 601. Socket; 7. Guide column; 8. Adjustment nut; 9. Heat dissipation mechanism; 91. Bottom plate; 911. Mounting groove; 912. Positioning column; 92. Heat dissipation part; 921. Heat dissipation plate; 9211. Heat dissipation hole; 9212. Limiting hole; 93. End cover; 931. Water inlet hole; 932. Water outlet hole; 94. First water flow channel; 95. Second water flow channel; 10. Water tank; 11. Cooling fan; 12. First locking nut; 13. Second locking nut. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described below with reference to the accompanying drawings. In the process, in order to ensure the clarity and convenience of the description, we may exaggerate the width of the lines or the size of the components in the drawings.

[0032] In addition, the terms used below are defined based on the functions of the present invention and may differ depending on the intention or custom of the user or operator. Therefore, these terms are defined based on the entire contents of this specification.

[0033] like Figures 1 to 3 As shown, a circuit breaker with heat dissipation function comprises a lower shell 1 and an upper shell 2, wherein a first placement cavity 101 is provided in the middle of the upper surface of the lower shell 1, three first grooves 102 are provided at both ends of the upper surface of the lower shell 1, a second groove 103 is provided on the upper surface of the lower shell 1, a sealing gasket is provided in the second groove 103, four first threaded holes 104 and four second threaded holes 106 are provided on the upper surface of the lower shell 1, through holes 105 are provided on the front and rear end surfaces of the bottom of the first placement cavity 101, third grooves 107 are provided on the tops of the two side walls of the first placement cavity 101, and wedge blocks 108 are provided in the third grooves 107.

[0034] like Figure 4 As shown, a cavity 201 and a second placement cavity 202 are provided at the bottom of the upper shell 2, and the second placement cavity 202 is communicated with the cavity 201. Three fourth grooves 203 are provided at the front and rear ends of the bottom of the upper shell 2. Four first locking holes 204 and four second locking holes 205 are provided at the bottom of the upper shell 2. Four positioning holes 206 are provided at the top of the upper shell 2, and the four positioning holes 206 pass through the cavity 201. Two mounting holes 207 are provided at the top of the upper shell 2, and the two mounting holes 207 pass through the cavity 201. Blocks 208 are provided at the ends of the two side walls of the second placement cavity 202, and a snap-fit ​​block 209 is provided at the bottom of the upper shell 2.

[0035] The upper shell 2 is fixedly engaged with the lower shell 1, the clamping block 208 is clamped with the wedge block 108, the four first locking holes 204 are opposite to the four first threaded holes 104, and are locked by the first locking nut 12, the four second locking holes 205 are opposite to the four second threaded holes 106, and are locked by the second locking nut 13, the engaging block 209 is inserted into the second groove 103 and presses the sealing gasket to achieve a certain sealing effect.

[0036] like Figure 5 and Figure 6As shown, a frame body 5 is provided at the middle of the bottom of the first placement cavity 101, a square groove 51 is provided in the middle of the frame body 5, two slide grooves 52 are provided on the upper surface of the frame body 5, and an adjustment plate 6 is slidably provided in the two slide grooves 52. Guide pillars 7 are slidably provided at both ends of the upper surface of the adjustment plate 6, and the top of the guide pillar 7 is fixedly provided in the positioning hole 206. An adjustment nut 8 is threadedly connected to the middle of the upper surface of the adjustment plate 6, and the top of the adjustment nut 8 is rotatably provided in the mounting hole 207. Rotating the adjustment nut 8 can push the adjustment plate 6 to slide along the slide groove 52, thereby adjusting the position of the adjustment plate 6 in the second placement cavity 202. The side wall of the adjustment plate 6 has two A socket 601 is provided, in which a cooling fan 11 is plugged, the blades of the cooling fan 11 are located in the frame 5, the cooling fan 11 is electrically connected to an external power supply, an electrical component 3 is arranged in the square slot 51, a handle of the electrical component 3 passes through the top of the upper shell 2, a cover 4 is provided on the top of the upper shell 2, an opening of the cover 4 is snap-fitted with the handle of the electrical component 3, two wiring terminals 31 are provided at both ends of the electrical component 3, four wiring terminals 31 are threadedly connected with wiring nuts 32, the four wiring terminals 31 respectively pass through four vias 105 and extend into the first slot 102, so as to be conveniently connected with external wires.

[0037] like Figure 7 As shown, a placement groove 109 is provided at the middle position of the bottom of the first placement cavity 101 of the lower shell 1, a heat dissipation mechanism 9 is provided in the placement groove 109, a connecting hole 110 is provided on the side wall of the placement groove 109, a water tank 10 is provided in the first placement cavity 101, the water tank 10 is located outside the frame 5, and the water tank 10 is connected to the heat dissipation mechanism 9 through a pipeline to supply water to the heat dissipation mechanism 9 for cooling.

[0038] like Figures 8 to 12As shown, the heat dissipation mechanism 9 includes a bottom plate 91 and a heat dissipation portion 92, a mounting groove 911 is provided in the middle of the bottom plate 91, the mounting groove 911 has a square structure, and positioning columns 912 are provided at the four corners of the bottom of the mounting groove 911, and the heat dissipation portion 92 includes two heat dissipation plates 921, and a plurality of heat dissipation holes 9211 are evenly distributed on the surface of the heat dissipation plate 921, and the heat dissipation holes 9211 are long strip holes, and the four corners of the long strip holes are rounded, and the heat dissipation holes 9211 are tilted, and the angle between the heat dissipation holes 9211 and a side wall of the heat dissipation plate 921 is 45°, and four limiting holes 9212 are provided at the four corners of the heat dissipation plate 921, and the two heat dissipation plates 921 are arranged in reverse and fit together, and the plurality of heat dissipation holes 921 of the two heat dissipation plates 921 11 are vertically fitted and pressed against each other to form a plurality of first water flow channels 94 and second water flow channels 95, the first water flow channels 94 and the second water flow channels 95 are both connected to the bottom of the mounting groove 911, the bottom plate 91 is provided with an end cover 93, and the two side walls of the end cover 93 are respectively provided with a water inlet hole 931 and a water outlet hole 932, the water inlet hole 931 is connected to the water outlet of the water tank 10 through a pipe passing through the connecting hole 110, and the water outlet hole 932 is connected to the water return port of the water tank 10 through a pipe passing through the connecting hole 110, thereby forming a circulating water channel, the water tank 10 is provided with a water inlet on the top, and the water inlet is connected to the outside through a pipe to add water to the water tank 10, and a water pump is provided in the water tank 10 to realize automatic supply of water from the water tank 10 to the heat dissipation mechanism 9.

[0039] The specific implementation method is that the upper shell 2 and the lower shell 1 are clamped together by the block 208 of the upper shell 2 and the wedge block 108 of the lower shell 1, and the upper shell 2 and the lower shell 1 are further locked and fixed by the first locking nut 12 and the second locking nut 13. The upper shell 2 and the lower shell 1 are sealed by the first slot 102, the locking block 209 and the sealing gasket, so that the interior of the upper shell 2 and the lower shell 1 are protected from the external environment. The heat dissipation fan 11 is powered by an external power supply, and the heat dissipation fan 11 cools the electrical components in the frame 5 by air. When the height of the heat dissipation fan 11 relative to the electrical components needs to be adjusted, it is only necessary to change the height of the adjustment plate 6, rotate the adjustment nut 8 to push the adjustment plate 6 up and down, and the adjustment plate 6 slides along the slide groove 52 and the guide column 7 without Offset, and the height of the cooling fan 11 can be adjusted at will, so that the cooling fan 11 can be aimed at the parts of the electrical components that generate more heat and blow directly, so as to achieve better heat dissipation effect. At the same time, the water pump in the water tank 10 sends water into the heat dissipation mechanism 9 through the pipeline and the water inlet hole 931. The cold water flowing in from the water inlet hole 931 flows into the bottom of the mounting groove 911 of the bottom plate 91 through the first water flow channel 94 and the second water flow channel 95 formed by the two heat dissipation plates 921, dissipates the heat on the surface of the bottom plate 91, and then dissipates the heat on the bottom of the electrical components, so that the electrical components are always kept at a normal working temperature, and the electrical components are dissipated by the combined action of the air cooling and water cooling modes, with good heat dissipation effect, thereby extending the service life of the electrical components 3.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A circuit breaker with a heat dissipation function, comprising a lower housing (1) and an upper housing (2), wherein a first placement cavity (101) is provided in the middle of the upper surface of the lower housing (1), characterized in that: A frame (5) is provided in the middle of the bottom of the first placement cavity (101), a square groove (51) is provided in the middle of the frame (5), two slide grooves (52) are provided on the upper surface of the frame (5), an adjustment plate (6) is slidably provided in the two slide grooves (52), guide pillars (7) are slidably provided at both ends of the upper surface of the adjustment plate (6), an adjustment nut (8) is threadedly connected in the middle of the upper surface of the adjustment plate (6), two insertion holes (601) are provided on the side wall of the adjustment plate (6), a heat dissipation fan (11) is plugged into the insertion holes (601), and the fan blades of the heat dissipation fan (11) are located in the frame (5), The heat dissipation fan (11) is electrically connected to an external power supply, an electrical component (3) is arranged in the square groove (51), a handle of the electrical component (3) passes through the top of the upper shell (2), a placement groove (109) is provided at the middle position of the bottom of the first placement cavity (101) of the lower shell (1), a heat dissipation mechanism (9) is arranged in the placement groove (109), a connecting hole (110) is provided on the side wall of the placement groove (109), a water tank (10) is arranged in the first placement cavity (101), the water tank (10) is located outside the frame (5), and the water tank (10) is connected to the heat dissipation mechanism (9) through a pipeline.

2. A circuit breaker with heat dissipation function according to claim 1, characterized in that: The heat dissipation mechanism (9) comprises a bottom plate (91) and a heat dissipation portion (92); a mounting groove (911) is provided in the middle of the bottom plate (91); the mounting groove (911) is in a square shape; positioning columns (912) are provided at the four corners of the bottom of the mounting groove (911); the heat dissipation portion (92) comprises two heat dissipation plates (921); a plurality of heat dissipation holes (9211) are evenly distributed on the surface of the heat dissipation plates (921); the heat dissipation holes (9211) are in the shape of long strips, and the four corners of the long strips are rounded; the heat dissipation holes (9211) are arranged obliquely, and the angle between the heat dissipation holes (9211) and a side wall of the heat dissipation plate (921) is 45°; four limiting holes (9212) are provided at the four corners of the heat dissipation plate (921); the two heat dissipation plates (921) are oppositely disposed. The two heat dissipation plates (921) are arranged to fit together, and the multiple heat dissipation holes (9211) of the two heat dissipation plates (921) are vertically fitted and pressed to form multiple first water flow channels (94) and second water flow channels (95). The first water flow channels (94) and the second water flow channels (95) are both connected to the bottom of the installation groove (911). The bottom plate (91) is provided with an end cover (93). The two side walls of the end cover (93) are respectively provided with a water inlet hole (931) and a water outlet hole (932). The water inlet hole (931) passes through the connecting hole (110) through a pipeline and is connected to the water outlet of the water tank (10). The water outlet hole (932) passes through the connecting hole (110) through a pipeline and is connected to the water return port of the water tank (10). The top of the water tank (10) is provided with a water inlet, and a water pump is provided in the water tank (10).

3. A circuit breaker with heat dissipation function according to claim 1, characterized in that: The top of both side walls of the first placement cavity (101) are provided with third slots (107), and a wedge block (108) is arranged in the third slots (107). The bottom of the upper shell (2) is provided with a cavity (201) and a second placement cavity (202), and the second placement cavity (202) is communicated with the cavity (201). The top of the upper shell (2) is provided with four positioning holes (206), and the four positioning holes (206) pass through the cavity (201). The top of the guide column (7) is fixedly arranged in the positioning hole (206). The top of the upper shell (2) is provided with two mounting holes (207), and the two mounting holes (207) pass through the cavity (201). The top of the adjusting nut (8) is rotatably arranged in the mounting holes (207). The ends of both side walls of the second placement cavity (202) are provided with clamping blocks (208), and the clamping blocks (208) are tightly engaged with the wedge block (108).

4. A circuit breaker with heat dissipation function according to claim 1, characterized in that: Three first slots (102) are provided at both ends of the upper surface of the lower shell (1), and three fourth slots (203) are provided at both front and rear ends of the bottom of the upper shell (2).

5. The circuit breaker with heat dissipation function according to claim 1, characterized in that: The upper surface of the lower shell (1) is provided with four first threaded holes (104), and the bottom of the upper shell (2) is provided with four first locking holes (204). The four first locking holes (204) are directly opposite to the four first threaded holes (104), and first locking nuts (12) are arranged in the four first locking holes (204) and the four first threaded holes (104).

6. A circuit breaker with heat dissipation function according to claim 1, characterized in that: The upper surface of the lower shell (1) is provided with four second threaded holes (106), and the bottom of the upper shell (2) is provided with four second locking holes (205), the four second locking holes (205) are directly opposite to the four second threaded holes (106), and second locking nuts (13) are arranged in the four second locking holes (205) and the four second threaded holes (106).

7. A circuit breaker with heat dissipation function according to claim 1, characterized in that: The upper surface of the lower shell (1) is provided with a second groove (103), a sealing gasket is arranged in the second groove (103), and the bottom of the upper shell (2) is provided with a snap-fit ​​block (209), the snap-fit ​​block (209) is inserted in the second groove (103) and presses against the sealing gasket.

8. The circuit breaker with heat dissipation function according to claim 1, characterized in that: A cover (4) is provided on the top of the upper shell (2), and an opening of the cover (4) is fitted with a handle of the electrical component (3).

9. A circuit breaker with heat dissipation function according to claim 4, characterized in that: The front and rear end surfaces of the bottom of the first placement cavity (101) are both provided with through holes (105); two ends of the electrical component (3) are both provided with two wiring terminals (31); four wiring terminals (31) are all threadedly connected with wiring nuts (32); the four wiring terminals (31) respectively pass through the four through holes (105) and extend into the first slot (102).

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