Single-phase power controller

Abstract

The utility model discloses a single-phase power controller, which comprises a shell, an upper end face base, an upper protective cover, a lower end face base, a lower protective cover, a first side plate, a second side plate and a front cover, the radiator is fixed on the open back of the shell; a communication connection terminal, a display screen and keys are integrated on the first circuit board; the first circuit board is fixed on the front cover; the front cover is correspondingly provided with a plurality of windows; the second circuit board is fixed in the shell; the thyristor module on the back of the second circuit board abuts against the radiator. The back sealing plate is fixed behind the radiator; after the upper protective cover and the upper end face base are assembled, a first through hole allowing a first cable to pass through and a second through hole allowing a signal line to pass through are formed. The lower end face base and the lower protective cover are assembled to form a third through hole for a second cable to pass through; the first through hole completely covers the conductive part of the first cable connector; and the third through hole completely covers the conductive part of the second cable connector.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power control, in particular to a single-phase power controller. Background Art

[0002] The single-phase power control device is a power control device based on thyristors (power electronic devices) with intelligent digital control circuits as the core. It is mainly used in single-phase 220VAC and two-phase 380VAC applications. It automatically adjusts the load by receiving analog signals or manually adjusts it through potentiometers.

[0003] The existing single-phase power control device is not well designed in terms of safety protection measures. Utility Model Content

[0004] In view of this, an embodiment of the utility model provides a single-phase power controller to solve the problem that the single-phase power controller in the prior art has defects in safety protection measures.

[0005] The present invention provides a single-phase power controller, comprising:

[0006] The housing is composed of an upper end surface base, an upper protective cover, a lower end surface base, a lower protective cover, a first side plate, a second side plate and a front cover to form a back-open structure;

[0007] a heat sink, fixed to the open back of the housing;

[0008] A first circuit board is integrated with a communication connection terminal, a display screen and buttons; the first circuit board is fixed on the front cover; the front cover is correspondingly provided with a plurality of windows;

[0009] A second circuit board is fixed in the housing; the thyristor module on the back of the second circuit board abuts against the heat sink;

[0010] A back sealing plate, fixed to the rear of the radiator;

[0011] Among them, the first side plate and the second side plate are fixedly connected to the upper end surface base and the lower end surface base by bolts; after the upper protective cover is assembled with the upper end surface base, a first through hole for passing the first cable and a second through hole for passing the signal line are formed; after the lower end surface base and the lower protective cover are assembled, a third through hole for passing the second cable is formed; the first through hole completely covers the conductive part of the first cable connector; the third through hole completely covers the conductive part of the second cable connector; the signal line is connected to the thyristor module through a transverse through hole on the upper end surface base.

[0012] Optionally, the upper end surface base and the upper protective cover are slidably assembled through a slot structure; the lower end surface base and the lower protective cover are slidably assembled through a slot structure.

[0013] Optionally, the heat sink comprises:

[0014] The heat sink is fixedly connected to the upper end surface base and the lower end surface base by bolts respectively;

[0015] The heat dissipation fan is fixed under the heat sink.

[0016] Optionally, the heat sink portion where the heat sink contacts the thyristor module is a plane, and the side of the heat sink opposite to the thyristor module is a curved surface with a raised center; on one side of the curved surface of the heat sink are a plurality of heat sink fins; the thickness of each heat sink fin gradually decreases from the point where it connects with the heat sink to the outside; the surface of the heat sink fin is serrated.

[0017] Optionally, the overall heat dissipation fin is in a shape that is long in the middle and short on both sides at the end away from the heat dissipation plate;

[0018] The ends of the two outer plates of the heat sink away from the heat sink are bent inwards by 90 degrees to form two bosses.

[0019] Optionally, screw holes corresponding to the heat dissipation fan are provided at four corners of the bottom of the heat sink.

[0020] Optionally, the front cover is rotatably connected to the upper end surface base and the lower end surface base via a rotating shaft structure;

[0021] The shaft structure includes a cylinder fixed on the upper and lower ends of the left edge or the right edge of the front cover, and cylindrical openings at corresponding positions of the upper end surface base and the lower end surface base.

[0022] Optionally, the back sealing plate is fixed to the back of the heat sink by bolts; wherein holes are provided at the two bosses of the heat sink and at corresponding positions of the back sealing plate; and an assembly hole for fixing is provided above the back sealing plate.

[0023] Optionally, it further comprises: a first copper bar, one end of which is connected to the first cable connector, and the other end of the first copper bar is connected to the second circuit board and the input end of the thyristor module through bolts;

[0024] One end of the second copper bar is connected to the second cable connector, and the other end of the second copper bar is connected to the second circuit board and the output end of the thyristor module through bolts.

[0025] Optionally, it further includes: an insulating block with a rectangular through hole in the middle to allow the second copper busbar to pass through; and the second circuit board is limited in position in the housing by the insulating block.

[0026] Beneficial effects of the utility model:

[0027] The utility model provides a single-phase power controller, which is used to achieve constant voltage, current or power output by automatically or manually adjusting the output voltage, current or power. Through the upper and lower bases and the corresponding upper and lower protective covers, after the single-phase power controller is assembled with the cable, the conductive parts of the cable are covered in the shell to avoid accidental touch by the staff, thereby improving the safety level. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the present invention in any way. In the accompanying drawings:

[0029] Figure 1 The overall assembly diagram of a single-phase power controller in an embodiment of the utility model is shown;

[0030] Figure 2 The exploded structure diagram of the upper end surface base and the upper protective cover of a single-phase power controller in an embodiment of the utility model is shown;

[0031] Figure 3 It shows a front exploded structural diagram of an upper end surface base, a cable line and a signal line of a single-phase power controller in an embodiment of the utility model;

[0032] Figure 4 It shows a back exploded structural diagram of an upper end surface base and a signal line of a single-phase power controller in an embodiment of the utility model;

[0033] Figure 5 A diagram showing a front cover open state of a single-phase power controller in an embodiment of the utility model is shown;

[0034] Figure 6 An exploded view of a front cover of a single-phase power controller in an embodiment of the utility model is shown;

[0035] Figure 7 It shows a structural diagram of a first circuit board of a single-phase power controller in an embodiment of the utility model;

[0036] Figure 8 The bottom structure diagram of a heat sink of a single-phase power controller in an embodiment of the utility model is shown;

[0037] Fig. 9 An exploded view of a thyristor module and a heat sink of a single-phase power controller in an embodiment of the utility model is shown;

[0038] Fig.10 A schematic diagram showing the connection between a copper bus and a thyristor of a single-phase power controller in an embodiment of the utility model is shown;

[0039] Fig.11A front structural diagram of a copper busbar and a second circuit board of a single-phase power controller in an embodiment of the utility model is shown;

[0040] Fig.12 The back structure diagram of the copper busbar and the second circuit board of a single-phase power controller in an embodiment of the utility model is shown. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0042] The utility model embodiment provides a single-phase power controller, such as Figures 1 to 10 As shown, it includes: a housing 10, a heat sink 20, a first circuit board 30, a second circuit board 40 and a back cover plate 50, wherein: the housing 10 is composed of an upper end surface base 101, an upper protective cover 102, a lower end surface base 103, a lower protective cover 104, a first side plate 105, a second side plate 106 and a front cover 107 to form a back-open structure. The heat sink 20 is fixed to the open back of the housing 10. The first circuit board 30 is integrated with a communication connection terminal 301, a display screen 302 and a button 303; the first circuit board 30 is fixed on the front cover 107. The front cover 107 is correspondingly provided with a plurality of windows. The second circuit board 40 is fixed in the housing 10. The thyristor module 401 on the back of the second circuit board 40 abuts against the heat sink 20. The back cover plate 50 is fixed to the rear of the heat sink 20.

[0043] The first side plate 105 and the second side plate 106 are fixedly connected to the upper end surface base 101 and the lower end surface base 103 by bolts; the upper protective cover 102 is assembled with the upper end surface base 101 to form a first through hole for passing the first cable and a second through hole for passing the signal line; the lower end surface base 103 and the lower protective cover 104 are assembled to form a third through hole for passing the second cable; the first through hole completely covers the conductive part of the first cable connector; the third through hole completely covers the conductive part of the second cable connector. The signal line is connected to the thyristor module 401 through a transverse through hole 1011 on the upper end surface base 101.

[0044] like Figure 2 and Figure 3As shown, the upper end surface base 101 and the upper protective cover 102 are slidably assembled through a slot structure; the lower end surface base 103 and the lower protective cover 104 are slidably assembled through a slot structure. After assembly, a first through hole 1012, a second through hole 1011 and a third through hole are formed on the housing.

[0045] like Figure 3 and Figure 4 As shown, the thicker one is the cable line, and the thinner one is the signal line, which is used to control the working mode of the thyristor module 401 and adjust the voltage, current or power output. On the surface of the upper end surface base 101, there is a recessed area in front of the second through hole 1011, which is convenient for fixing the signal line on the upper end surface base 101. The front of the second through hole 1011 is closed.

[0046] like Figure 5 to Figure 7 As shown, the first circuit board 30 integrates a key 303 for manual control and a display screen 302 for observing the working conditions, and a corresponding window is opened on the front cover 107. The first circuit board also integrates a communication terminal 301 for communication.

[0047] like Figure 8 and Fig. 9 As shown, the radiator 20 includes: a heat sink 201, which is fixedly connected to the upper end surface base 101 and the lower end surface base 103 by bolts respectively; and a heat dissipation fan 202, which is fixed below the heat sink 201. The heat sink 201 and the thyristor module 401 contacting heat sink plate portion is a plane, and the heat sink plate and the thyristor module 401 opposite side is a convex arc surface in the middle; on the arc surface side of the heat sink are a plurality of heat dissipation fins; each heat dissipation fin gradually decreases in thickness from the junction with the heat sink to the outside; the surface of the heat dissipation fin is serrated. The overall heat dissipation fin is long in the middle and short on both sides at the end away from the heat sink. The two outer plates of the heat sink 201 are bent inward 90 degrees away from the end of the heat sink to form two bosses. The four corners of the bottom of the heat sink are provided with screw holes for assembly corresponding to the heat dissipation fan.

[0048] like Figure 6 and Fig.10 As shown, the front cover 107 is rotatably connected with the upper end surface base 101 and the lower end surface base 103 through a rotating shaft structure. The rotating shaft structure includes a cylinder fixed to the upper and lower ends of the left edge or the right edge of the front cover, and cylindrical openings at corresponding positions of the upper end surface base 101 and the lower end surface base 103.

[0049] like Fig. 9 As shown, the back sealing plate 50 is fixed to the back of the heat sink 201 by bolts; wherein, holes are provided at the two bosses of the heat sink 201 and the corresponding positions of the back sealing plate; and an assembly hole for fixing is provided on the top of the back sealing plate 50.

[0050] like Fig.11 and Fig.12 As shown, it also includes: a first copper bar 402, one end of which is connected to the first cable connector, and the other end of the first copper bar 402 is connected to the second circuit board 40 and the input end of the thyristor module 401 through bolts; a second copper bar 403, one end of which is connected to the second cable connector, and the other end of the second copper bar 403 is connected to the second circuit board 40 and the output end of the thyristor module 401 through bolts. The cable connector and the copper bar are fixedly connected by a 90-degree fixing piece.

[0051] like Figure 5 , Fig.11 and Fig.12 As shown, it also includes: an insulating block 404, a rectangular through hole is provided in the middle to allow the second copper bus 403 to pass through; the second circuit board 40 is limited in position in the housing 10 by the insulating block.

[0052] One side edge of the second circuit board 40 is longer, and the upper end of the insulating block 404 is used to support the other shorter bottom side of the second circuit board 40 to make the second circuit board 40 more stable. Another function is to limit the position of the second circuit board 40 in the shell 10 to ensure that the conductive part of the cable connector at the lower end does not expose the shell 10.

[0053] The utility model provides a single-phase power controller, which is used to achieve constant voltage, current or power output by automatically or manually adjusting the output voltage, current or power. Through the upper and lower bases and the corresponding upper and lower protective covers, after the single-phase power controller is assembled with the cable, the conductive parts of the cable are covered in the shell to avoid accidental touch by the staff, thereby improving the safety level.

[0054] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A single-phase power controller, characterized in that: include: The housing (10) is composed of an upper end surface base (101), an upper protective cover (102), a lower end surface base (103), a lower protective cover (104), a first side plate (105), a second side plate (106) and a front cover (107) to form a back-open structure; A heat sink (20) is fixed to the open back of the housing (10); A first circuit board (30) is integrated with a communication connection terminal (301), a display screen (302) and a key (303); the first circuit board (30) is fixed on the front cover (107); the front cover (107) is correspondingly provided with a plurality of windows; A second circuit board (40) is fixed in the housing (10); a thyristor module (401) on the back side of the second circuit board (40) abuts against the heat sink (20); A back sealing plate (50) fixed at the rear of the radiator (20); The first side plate (105) and the second side plate (106) are fixedly connected to the upper end surface base (101) and the lower end surface base (103) by bolts; the upper protective cover (102) and the upper end surface base (101) are assembled to form a first through hole for the first cable to pass through and a second through hole for the signal line to pass through; the lower end surface base (103) and the lower protective cover (104) are assembled to form a third through hole for the second cable to pass through; the first through hole completely covers the conductive part of the first cable connector; the third through hole completely covers the conductive part of the second cable connector; the signal line is connected to the thyristor module (401) through a transverse through hole (1011) on the upper end surface base (101).

2. The single-phase power controller according to claim 1, characterized in that: The upper end surface base (101) and the upper protective cover (102) are slidably assembled via a slot structure; the lower end surface base (103) and the lower protective cover (104) are slidably assembled via a slot structure.

3. The single-phase power controller according to claim 1, characterized in that: The radiator (20) comprises: The heat sink (201) is fixedly connected to the upper end surface base (101) and the lower end surface base (103) respectively by bolts; A heat dissipation fan (202) is fixed below the heat dissipation fin (201).

4. The single-phase power controller according to claim 3, characterized in that: The heat sink (201) and the heat dissipation plate portion in contact with the thyristor module (401) are flat, and the side of the heat dissipation plate opposite to the thyristor module (401) is a curved surface with a protrusion in the middle; a plurality of heat dissipation fins are provided on one side of the curved surface of the heat dissipation plate; the thickness of each heat dissipation fin gradually decreases from the point where it is connected to the heat dissipation plate toward the outside; and the surface of the heat dissipation fin is serrated.

5. The single-phase power controller according to claim 4, characterized in that: The overall heat dissipation fin is in a shape that is long in the middle and short on both sides at the end away from the heat dissipation plate; The two outer plates of the heat sink (201) are bent inwards at 90 degrees at the ends away from the heat sink to form two bosses.

6. The single-phase power controller according to claim 3, characterized in that: The four corners of the bottom of the heat sink are provided with screw holes for assembling corresponding to the heat dissipation fan.

7. The single-phase power controller according to claim 1, characterized in that: The front cover (107) is rotatably connected to the upper end surface base (101) and the lower end surface base (103) via a rotating shaft structure; The shaft structure comprises a cylinder fixed to the upper and lower ends of the left edge or the right edge of the front cover, and cylindrical openings at corresponding positions of the upper end surface base (101) and the lower end surface base (103).

8. The single-phase power controller according to claim 5, characterized in that: The back sealing plate (50) is fixed to the back of the heat sink (201) by means of bolts; wherein openings are provided at two bosses of the heat sink (201) and at corresponding positions of the back sealing plate; and an assembly hole for fixing is provided above the back sealing plate (50).

9. The single-phase power controller according to claim 1, characterized in that: Also includes: A first copper bar (402), one end of which is connected to the first cable connector, and the other end of the first copper bar (402) is connected to the second circuit board (40) and the input end of the thyristor module (401) via bolts; One end of the second copper busbar (403) is connected to the second cable connector, and the other end of the second copper busbar (403) is connected to the second circuit board (40) and the output end of the thyristor module (401) via bolts.

10. The single-phase power controller according to claim 9, characterized in that: Also includes: An insulating block (404) has a rectangular through hole in the middle to allow the second copper bar (403) to pass through; the second circuit board (40) is limited in position in the housing (10) by the insulating block.

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