阅读说明：本技术 一种基于步进电机控制的大功率电子开关 (High-power electronic switch based on stepping motor control ) 是由 文毅 于 2019-11-05 设计创作，主要内容包括：为了解决传统的电子开关的驱动力比较小和传统的电子开关的保护盒要求比较高的问题,本发明提出一种基于步进电机控制的大功率电子开关,其包括：电子开关主体和固定盒8,电子开关主体包括特厚载流静触点导电弹片1、特厚载流动触点导电弹片2、L形导电弹片固定板3、PCB板5、塑料基座6,其特征在于：还包括步进电机4和霍尔元件45,步进电机4与PCB板5电性连接,步进电机4与霍尔元件45电性连接,霍尔元件45与PCB板5电性连接,PCB板5的电源线可以与负载电性连接,L形导电弹片固定板3的数量至少为两个,且两个L形导电弹片固定板3分别固定在塑料基座6的第一表面。(In order to solve the problems that the driving force of the traditional electronic switch is smaller and the requirement on a protection box of the traditional electronic switch is higher, the invention provides a high-power electronic switch based on stepping motor control, which comprises the following components: electronic switch main part and fixed box 8, the electronic switch main part includes that super thick current-carrying stationary contact electrically conducts shell fragment 1, super thick current-carrying movable contact electrically conducts shell fragment 2, the electrically conductive shell fragment fixed plate 3 of L shape, PCB board 5, plastics base 6, its characterized in that: still include step motor 4 and hall element 45, step motor 4 and 5 electric connection of PCB board, step motor 4 and hall element 45 electric connection, hall element 45 and 5 electric connection of PCB board, the power cord of PCB board 5 can with load electric connection, the quantity of the electrically conductive shell fragment fixed plate of L shape 3 is two at least, and two electrically conductive shell fragment fixed plates of L shape 3 fix respectively on the first surface of plastic substrate 6.)

1. A high power electronic switch based on stepper motor control, comprising: electronic switch main part and fixed box (8), the electronic switch main part includes that super thick current-carrying stationary contact electrically conducts shell fragment (1), super thick current-carrying movable contact electrically conducts shell fragment (2), electrically conducts shell fragment fixed plate (3) of L shape, PCB board (5), plastics base (6), its characterized in that: the PCB comprises a PCB (5), a stepping motor (4) and a Hall element (45), wherein the stepping motor (4) is electrically connected with the PCB, the stepping motor (4) is electrically connected with the Hall element (45), the Hall element (45) is electrically connected with the PCB (5), a power line of the PCB (5) can be electrically connected with a load, the number of L-shaped conductive elastic sheet fixing plates (3) is at least two, the two L-shaped conductive elastic sheet fixing plates (3) are respectively fixed on the first surface of a plastic base (6), one end of an extra-thick current-carrying static contact conductive elastic sheet (1) is fixed on one of the L-shaped conductive elastic sheet fixing plates (3) through a screw, a first silver contact (11) is arranged at the free end of the extra-thick current carrying static contact conductive elastic sheet (1), one end of an extra-thick current carrying movable contact conductive elastic sheet (2) is fixed on the other L-shaped conductive elastic sheet (3) through a screw, the free end of the super-thick current-carrying movable contact conductive elastic sheet (2) is provided with a second silver contact (21), the middle position of the super-thick current-carrying movable contact conductive elastic sheet (2) is provided with a limiting bulge part (22), the stepping motor (4) is fixed on the plastic base (6), the outer part of a motor shaft (43) of the stepping motor (4) is sleeved with a swing arm (44), the swing arm (44) can abut against the limiting bulge part (22) in the rotating process of the motor shaft (43), when the swing arm (44) is located at a first position (44)1, the super-thick current-carrying movable contact conductive elastic sheet (2) is in an unstressed state, the super-thick current-carrying movable contact conductive elastic sheet (2) and the super-thick current-carrying fixed contact conductive elastic sheet (1) are in a separated state, the whole circuit of the switch is disconnected, and when the swing arm (44) is located at a second position (442), the second silver contact (21) of the super-thick current-carrying movable contact conductive elastic sheet (2) is stressed to operate to the The points (11) are contacted, and the whole circuit of the switch is conducted; the fixed box (8) comprises a side surface and a top surface, the side surface is formed by rectangles which are opposite in pairs, one surface of each rectangle is fixedly connected with the top surface, a second fence (84) is arranged on the plane of the top surface close to the side surface, the second fence (84) and the side surface form a circle of protective fence, for fixing and protecting the stepping motor (4) and the line pressing terminal fence (86) therein, the inside of the wire pressing terminal fence (86) penetrates through the wire pressing terminal (7), the top surface is provided with a circular fixing hole (85), the position of the circular fixing hole (85) is positioned right above the wire pressing terminal fence (86), the side surface is provided with a rectangular fixing hole (87), the rectangular fixing hole (87) is just positioned right below the wire pressing terminal fence (86), the top surface is provided with a plurality of positioning columns (88), is used for matching with a positioning column on the plastic base (6) so that the electronic switch main body and the fixing box (8) can be fixedly connected.

2. The stepping motor control-based high power electronic switch according to claim 1, wherein: the surface of the PCB (5) is welded with a fireproof switch (54).

3. The stepping motor control-based high power electronic switch according to claim 1, wherein: the limiting bulge part (22) adopts a diamond structure, so that the swing arm (44) can just abut against the limiting bulge part (22) and drive the super-thick current-carrying movable contact conductive elastic sheet (2) to rotate by taking a screw at one end as a fulcrum; the swing arm (44) includes a central cylinder and a raised structure located on one side of the central cylinder to facilitate the shifting of the limit boss (22).

4. The stepping motor control-based high power electronic switch according to claim 1, wherein: a first line pressing terminal (71) is arranged at a first free end (12) of an L-shaped conductive elastic sheet fixing plate connected with the extra-thick current-carrying fixed contact conductive elastic sheet (1), a second line pressing terminal (72) is arranged at a second free end (23) of the L-shaped conductive elastic sheet fixing plate connected with the extra-thick current-carrying movable contact conductive elastic sheet (2), the first line pressing terminal (71) and a fourth line pressing terminal (74) are respectively connected with a zero line and a live line, the positions of the zero line and the live line can be interchanged, and the zero line and the live line are respectively connected with a PCB (5) and used for providing power for an electronic switch; two metal sheets are further arranged on the plastic base (6), one ends of the two metal sheets are respectively connected with the PCB (5) through a zero line and a live wire, the other ends of the two metal sheets are respectively provided with a second wire pressing terminal (72) and a third wire pressing terminal (73), the positions of the zero line and the live wire can be interchanged, and the zero line and the live wire are connected with a power supply of a load; the number of the circular fixing holes (85) in the fixing box (8) is four, the number of the rectangular fixing holes (87) is four, and the circular fixing holes (85), the rectangular fixing holes (87), the line pressing terminals (7) and the line pressing terminal fences (86) are in one-to-one correspondence.

5. The stepping motor control-based high-power electronic switch as claimed in claim 1, wherein: step motor (4) are through first control line (41) and PCB board (5) electric connection, the free end of first control line (41) is equipped with first binding post (42), during first binding post (42) can insert binding socket (51), hall element (45) are through second control line (46) and PCB board (5) electric connection, the free end of second control line (46) is equipped with second binding post (47), during second binding post (47) can insert binding socket (51), binding socket (51) are fixed on the PCB board through the welded mode.

6. The stepping motor control-based high-power electronic switch as claimed in claim 1, wherein: the PCB (5) is connected with the key (52), and the PCB (5) is connected with the WIFI signal indicating ring (53); the top surface of the fixed box (8) is provided with a circular through hole (81) for passing through the key (52), and the key (52) can be pressed or ejected in the circular through hole (81); the top surface of the fixed box (8) is provided with a WIFI perforation (82) so that a WIFI signal indicating ring can be embedded into the WIFI signal indicating ring.

7. The stepping motor control-based high-power electronic switch as claimed in claim 1, wherein: a first additional fixed block (61) and a second additional fixed block (62) are respectively added on two sides of the vertical part of the extra-thick current-carrying static contact conductive elastic sheet (1); in order to increase the stability of the extra-thick current-carrying moving contact conductive elastic sheet (2), a third additional fixing block (63) and a fourth additional fixing block (64) are respectively added on two sides of the vertical part of the extra-thick current-carrying moving contact conductive elastic sheet (2).

8. The stepping motor control-based high-power electronic switch as claimed in claim 1, wherein: two screw holes are formed in the main body of the stepping motor (4), the main body of the stepping motor (4) can be fixed on one surface of the plastic base (6), and the motor shaft (43) of the stepping motor (4) is located on the other surface of the plastic base (6).

9. The stepping motor control-based high-power electronic switch as claimed in claim 1, wherein: the surface of the plastic base (6) far away from the top surface of the fixing box (8) is provided with a first rail (67), the main body of the stepping motor (4) is enclosed in the first rail (67), two ends of the first rail (67) are respectively provided with a first line card (65) and a second line card (66), and a first control line (41) of the stepping motor (4) can penetrate through the first line card (65) and the second line card (66).

10. The stepping motor control-based high-power electronic switch as claimed in claim 1, wherein: the protective shell (9) is further included, the protective shell (9) comprises an upper cover (91) and a lower cover (92), a first fixing shaft (911) and a second fixing shaft (912) are arranged on the side surface of the upper cover (91), a first shaft sleeve (921) and a second shaft sleeve (922) are arranged on the side surface of the lower cover (92), the first fixing shaft (911) penetrates through the first shaft sleeve (921), the second fixing shaft (912) penetrates through the second shaft sleeve (922), and the first fixed shaft (911) and the second fixed shaft (912) are synchronously rotated in the first shaft sleeve (921) and the second shaft sleeve (922), so that the upper cover (91) and the lower cover (92) can be opened and closed, a buckle frame (913) is arranged on the other side surface of the upper cover (91), a buckle (923) is arranged on the other side surface of the lower cover (92), when the upper cover (91) and the lower cover (92) are closed, the buckle (923) penetrates through the buckle frame (913) and is fixed; a plurality of clamping grooves (924) and clamping hooks (925) are formed in the inner side face of the lower cover (92) of the protective shell (9) and can be clamped and fixed with a recessed area (89) outside the side face of the fixed box (8), a plurality of screw column fixing holes (926) are formed in the inner surface of the bottom face of the lower cover (92) of the protective shell (9) and are used for being connected with screw columns on the surface, far away from the fixed box (8), of the plastic base (6), and therefore the whole electronic switch can be fixed inside the protective shell (9); a plurality of knocking holes are formed in a lower cover (92) of the protective shell (9) and used for allowing a control line to pass through.

Background

The traditional electronic switch is mainly controlled by a relay, the volume of the relay is relatively small, so that the power is relatively small, and the power of the traditional electronic switch is 2HP (HP is the abbreviation of horsepower), which is the Chinese horsepower) at most. The traditional electronic switch is mainly applied to loads such as a driving motor, the power requirement on the electronic switch is larger and larger along with the increase of the loads, and when the loads are increased to a certain degree, the traditional electronic switch cannot be driven, so that the loads which can be driven by the electronic switch are limited. Furthermore, the conventional electronic switch is directly placed in the protection box, so the requirement on the protection box is high.

Disclosure of Invention

In view of the above, in order to solve the problems that the driving force of the conventional electronic switch is relatively small and the requirement on the protection box of the conventional electronic switch is relatively high, the invention provides a high-power electronic switch controlled based on a stepping motor, which does not adopt a conventional relay control structure, but adopts a hall element to control the forward rotation and the reverse rotation of a motor shaft of the stepping motor so as to drive a swing arm on the motor shaft of the stepping motor to rotate forward and reverse, wherein the swing arm can drive an extra-thick current-carrying movable contact conductive elastic sheet to move so as to realize the contact and the separation with the extra-thick current-carrying static contact conductive elastic sheet, when the extra-thick current-carrying movable contact conductive elastic sheet contacts with the extra-thick current-carrying static contact conductive elastic sheet, the whole circuit is switched on, and when the extra-thick current-carrying movable contact conductive elastic sheet is separated from the. By adopting the structure, the power adjustment of the electronic switch can be improved to more than 5HP from 2HP, the load driving capability of the electronic switch is greatly improved, and the characteristic of small volume of the electronic switch is kept. Simultaneously, at electronic switch's main part external mounting set casing for whole electronic switch's main part is fixed wherein, makes whole electronic switch's shape become comparatively regular, facilitates the use, and electronic switch can the exclusive use under ordinary environment like this, then can add the protective housing and use under adverse circumstances, and the requirement to the protective housing is fairly simple, need not to match the shape and customizes, but use general protective housing on the market can.

A high power electronic switch based on stepper motor control, comprising: electronic switch main part and fixed box 8, the electronic switch main part includes that super thick current-carrying stationary contact electrically conducts shell fragment 1, super thick current-carrying movable contact electrically conducts shell fragment 2, the electrically conductive shell fragment fixed plate 3 of L shape, PCB board 5, plastics base 6, its characterized in that: the PCB comprises a stepping motor 4 and a Hall element 45, wherein the stepping motor 4 is electrically connected with a PCB 5, the stepping motor 4 is electrically connected with the Hall element 45, the Hall element 45 is electrically connected with the PCB 5, a power cord of the PCB 5 can be electrically connected with a load, the number of L-shaped conductive elastic sheet fixing plates 3 is at least two, the two L-shaped conductive elastic sheet fixing plates 3 are respectively fixed on the first surface of a plastic base 6, one end of an extra-thick current-carrying static contact conductive elastic sheet 1 is fixed on one L-shaped conductive elastic sheet fixing plate 3 through a screw, the free end of the extra-thick current-carrying static contact conductive elastic sheet 1 is provided with a first silver contact 11, one end of an extra-thick current-carrying movable contact conductive elastic sheet 2 is fixed on the other L-shaped conductive elastic sheet fixing plate 3 through a screw, the free end of the extra-thick current-carrying movable contact conductive elastic sheet 2 is provided with a second silver contact 21, and the middle position of, the stepping motor 4 is fixed on the plastic base 6, the swing arm 44 is sleeved outside a motor shaft 43 of the stepping motor 4, the swing arm 44 can abut against the limiting protrusion part 22 in the rotating process of the motor shaft 43, when the swing arm 44 is located at a first position 441, the extra-thick current-carrying movable contact conductive elastic sheet 2 is in an unstressed state, the extra-thick current-carrying movable contact conductive elastic sheet 2 and the extra-thick current-carrying static contact conductive elastic sheet 1 are in a separated state, the whole circuit of the switch is disconnected, when the swing arm 44 is located at a second position 442, the second silver contact 21 of the extra-thick current-carrying movable contact conductive elastic sheet 2 is stressed to be in contact with the first silver contact 11 of the extra-thick current-carrying static contact conductive elastic sheet 1, and the whole circuit of; fixed box 8 includes side and top surface, the side comprises two liang of relative rectangles, and rectangular one face and top surface fixed connection, the top surface is close to and is equipped with second rail 84 on the plane of side, second rail 84 and side form the round guard fence, be used for fixing and the protection in with step motor 4 and line ball terminal rail 86, line ball terminal 7 is passed to line ball terminal rail 86 inside, be equipped with circular fixed orifices 85 on the top surface, the position of circular fixed orifices 85 is located line ball terminal rail 86 directly over, be equipped with rectangle fixed orifices 87 on the side, rectangle fixed orifices 87 just in time is located line ball terminal rail 86 under, be equipped with a plurality of reference columns 88 on the top surface, be used for matcing with the reference column on the plastic substrate 6, make electronic switch main part and fixed box 8 can fixed connection.

Further, a fireproof switch 54 is soldered on the surface of the PCB board 5.

Furthermore, the limit bulge part 22 adopts a diamond structure, so that the swing arm 44 can just abut against the limit bulge part 22 and drive the extra-thick current-carrying movable contact conductive elastic sheet 2 to rotate by taking a screw at one end as a fulcrum.

Furthermore, a first line pressing terminal 71 is arranged at a first free end 12 of the L-shaped conductive elastic sheet fixing plate connected with the extra-thick current-carrying fixed contact conductive elastic sheet 1, a fourth line pressing terminal 74 is arranged at a second free end 23 of the L-shaped conductive elastic sheet fixing plate connected with the extra-thick current-carrying movable contact conductive elastic sheet 2, the second line pressing terminal 72 and the third line pressing terminal 73 are respectively connected with a zero line and a live line, the positions of the zero line and the live line can be interchanged, and the zero line and the live line are respectively connected with the PCB 5 and used for providing power for the electronic switch; still be equipped with two sheetmetals on the plastics base 6, the one end of these two sheetmetals is connected with PCB board 5 through a zero line and a live wire respectively, and the other one end of these two sheetmetals is equipped with second line ball terminal 72 and third line ball terminal 73 respectively, through a zero line and a live wire respectively in second line ball terminal and the third line ball terminal, the position of zero line and live wire can be exchanged, just the power of zero line and live wire and load link to each other.

Further, the number of circular fixing holes 85 on the fixing box 8 is four, which are respectively the first circular fixing hole 851, the second circular fixing hole 852, the third circular fixing hole 853, the fourth circular fixing hole 854, the number of rectangular fixing holes 87 is also four, which are respectively the first rectangular fixing hole 871, the second rectangular fixing hole 872, the third rectangular fixing hole 873 and the fourth rectangular fixing hole 874, and the first circular fixing hole 851, the first rectangular fixing hole 871, the first wire pressing terminal 71 and the wire pressing terminal fence 86 are in one-to-one correspondence, so on, other circular fixing holes 85, the rectangular fixing holes 87, the wire pressing terminals 7 and the wire pressing terminal fence 86 are in one-to-one correspondence.

Further, the stepping motor 4 is electrically connected with the PCB 5 through the first control line 41, the free end of the first control line 41 is provided with the first connection terminal 42, the first connection terminal 42 can be inserted into the connection socket 51, the hall element 45 is electrically connected with the PCB 5 through the second control line 46, the free end of the second control line 46 is provided with the second connection terminal 47, the second connection terminal 47 can be inserted into the connection socket 51, and the connection socket 51 is fixed on the PCB through a welding mode.

Further, the swing arm 44 includes a central cylinder and a protrusion on one side of the central cylinder to facilitate the movement of the position-limiting protrusion 22.

Further, the PCB 5 is connected to the button 52, the button 52 is used for inputting signals, the PCB sends signals to the hall element 45 and the stepping motor 4, and the hall element 45 controls the stepping motor 4 to rotate forward and backward, so as to turn on and off the circuit in the switch.

Further, the PCB board 5 is connected with the WIFI signal indicating ring 53 for displaying whether the electronic switch smoothly accesses the WIFI signal.

Further, in order to increase the stability of the extra-thick current-carrying stationary contact conductive elastic sheet 1, a first additional fixed block 61 and a second additional fixed block 62 are respectively added on two sides of the vertical part of the extra-thick current-carrying stationary contact conductive elastic sheet 1; in order to increase the stability of the extra-thick current-carrying moving contact conductive spring piece 2, a third additional fixing block 63 and a fourth additional fixing block 64 are respectively added on two sides of the vertical part of the extra-thick current-carrying moving contact conductive spring piece 2.

Furthermore, two screw holes are formed in the main body of the stepping motor 4, the main body of the stepping motor 4 can be fixed on one surface of the plastic base 6, and the motor shaft 43 of the stepping motor 4 is located on the other surface of the plastic base 6, so that the space is saved.

Further, a first rail 67 is arranged on the surface of the plastic base 6 away from the top surface of the fixing box 8, the first rail 67 encloses the main body of the stepping motor 4, a first wire clip 65 and a second wire clip 66 are respectively arranged at two ends of the first rail 67, and the first control wire 41 of the stepping motor 4 can be passed through the first wire clip 65 and the second wire clip 66, so that the first control wire 41 of the stepping motor 4 can be isolated and protected by the first rail 67, and the first control wire 41 is tidy.

Further, a circular through hole 81 is provided on the top surface of the fixing case 8 for passing through the key 52, and the key 52 can be pressed or ejected in the circular through hole 81; the top surface of the fixing box 8 is provided with a WIFI perforation 82, so that a WIFI signal indicating ring can be embedded into the WIFI perforation.

Further, as described above, the high-power electronic switch based on the stepping motor control further includes the protective case 9, the protective case 9 includes the upper cover 91 and the lower cover 92, the side surface of the upper cover 91 is provided with the first fixing shaft 911 and the second fixing shaft 912, the side surface of the lower cover 92 is provided with the first bushing 921 and the second bushing 922, the first fixing shaft 911 passes through the first bushing 921, the second fixing shaft 912 passes through the second bushing 922, and the first fixing shaft 911 and the second fixing shaft 912 synchronously rotate in the first bushing 921 and the second bushing 922, so that the upper cover 91 and the lower cover 92 can be opened and closed, the other side surface of the upper cover 91 is provided with the fastening frame 913, the other side surface of the lower cover 92 is provided with the fastener 923, and when the upper cover 91 and the lower cover 92 are closed, the fastener 923 passes through the fastening frame 913 and is fixed.

Further, a plurality of clamping grooves 924 and clamping hooks 925 are arranged on the inner side face of the lower cover 92 of the protective shell 9 and can be clamped and fixed with the recessed area 89 outside the side face of the fixed box 8, and a plurality of screw column fixing holes 926 are arranged on the inner surface of the bottom face of the lower cover 92 of the protective shell 9 and are used for being connected with screw columns of the plastic base 6, which are far away from the surface of the fixed box 8, so that the whole electronic switch can be fixed inside the protective shell 9.

Further, a plurality of knock holes are formed in the lower cover 92 of the protective case 9 and used for allowing a control line to pass through, so that the high-power electronic switch based on the control of the stepping motor can be suitable for outdoor environments.

The working principle of the high-power electronic switch based on the stepping motor control is as follows: in a first mode of operation, the keys 52 send signals to the PCB board 5, the PCB board 5 sends signals to the control stepper motor 4 and the hall element 45 via the first control line 41 and the second control line 46, so that the hall element 45 controls the stepping motor 4 to rotate forward or backward, the swing arm 44 sleeved outside the motor shaft 43 of the stepping motor 4 moves from the first position 441 to the second position 442, at this time, the swing arm 44 drives the limiting protrusion part 22 of the current-carrying moving contact conductive elastic sheet 2 to move, so that the second silver contact 21 of the super-thick current-carrying movable contact conductive elastic sheet 2 can be contacted with the first silver contact 11 of the super-thick current-carrying static contact conductive elastic sheet 1, and the circuit of the whole electronic switch is conducted, a control signal is input to the control line connected to the fourth line voltage terminal 74, and a control signal is output to the control line connected to the first line voltage terminal 71, so that the load starts to operate;

in another mode of operation, the keys 52 send signals to the PCB board 5, the PCB board 5 sends signals to the control stepper motor 4 and the hall element 45 via the first control line 41 and the second control line 46, so that the hall element 45 controls the stepping motor 4 to rotate reversely or forwardly, the swing arm 44 sleeved outside the motor shaft 43 of the stepping motor 4 moves from the second position 442 to the first position 441, at this time, the swing arm 44 drives the limiting convex part 22 of the current-carrying movable contact conductive elastic sheet 2 to move, so that the second silver contact 21 of the conductive elastic sheet 2 with the extra-thick current-carrying movable contact can be separated from the first silver contact 11 of the conductive elastic sheet 1 with the extra-thick current-carrying fixed contact, and the circuit of the whole electronic switch is disconnected, the control line connected to the fourth voltage line terminal 74 inputs a control signal, and the control line connected to the first voltage line terminal 71 outputs a control signal so that the load no longer operates.

Therefore, the movement of the conductive elastic sheet of the super-thick current-carrying contact is controlled by adopting the linkage mode of the stepping motor and the Hall element to replace the original relay, so that the volume of the electronic switch can be basically kept unchanged, but the maximum power of the electronic switch is greatly improved. And the adoption of the silver contact can not only improve the conductivity, but also prolong the service life of the electronic switch, and simultaneously improve the power of the electronic switch.

Drawings

Fig. 1 is an exploded view of a high power electronic switch based on stepper motor control.

Fig. 2 is an exploded view of a high power electronic switch based on stepper motor control.

Fig. 3 is an exploded view of a high power electronic switch based on stepper motor control.

Fig. 4 is an exploded view of a high power electronic switch based on stepper motor control.

Fig. 5 is an exploded view of a high power electronic switch based on stepper motor control.

Fig. 6 is a schematic structural diagram of the electronic switch main body.

Fig. 7 is a schematic structural diagram of the electronic switch main body.

Fig. 8 is a schematic structural diagram of the electronic switch main body.

Fig. 9 is a schematic structural diagram of the electronic switch main body.

Fig. 10 is a schematic structural diagram of the electronic switch main body.

Fig. 11 is a schematic structural diagram of the electronic switch main body.

Description of the main elements

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

Detailed Description