CN214753491U

CN214753491U - Novel turn-off device of power electronic device

Info

Publication number: CN214753491U
Application number: CN202120911275.6U
Authority: CN
Inventors: 郭栋; 徐颖; 王兆壮; 邱力军
Original assignee: Xijing University
Current assignee: Xijing University
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-11-16
Anticipated expiration: 2031-04-29

Abstract

The utility model discloses a novel turn-off of power electronic device, the power distribution box comprises a box body, the inner chamber wall body of box is provided with the electric power conduction structure, the top of electric power conduction structure is provided with switching mechanism, switching mechanism includes tooth's socket, first spacing groove, sealing ring, screw rod, carousel, fixed block, seal groove, the tooth's socket has been seted up at the top of box, first spacing groove has been seted up to the inner chamber bottom of tooth's socket, the shape of first spacing groove sets up to fan-shaped, the quantity of first spacing groove has two, and the symmetry sets up in the inner chamber bottom of tooth's socket, the opening part fixedly connected with sealing ring of tooth's socket, the middle part of tooth's socket is inserted and is equipped with the screw rod, the top fixedly connected with carousel of screw rod. This novel power electronic device's turn-off device, the cooperation through the sealing ring that sets up and seal groove can play sealed effect to the tooth's socket, prevents to rust between tooth's socket and the screw rod, influences the use.

Description

Novel turn-off device of power electronic device

Technical Field

The utility model relates to a power electronic device field, in particular to novel turn-off of power electronic device.

Background

A power semiconductor device, also called a power electronic device, is an electronic switch made of silicon as a main material, and is directly used in a main circuit to realize conversion of electric energy, and thus may be called a power electronic switch device, and a turn-off device of the power electronic device is an important component of the power electronic switch.

In chinese utility model patent application no: CN201822277049.8 discloses a shutdown device, comprising: the box body is provided with air holes, the air holes are L-shaped and comprise horizontal sections and vertical sections, the top of each vertical section is communicated with the inner cavity of the box body, the bottom of each vertical section is communicated with the corresponding horizontal section, and the horizontal sections are communicated with the outside; the circuit board, the circuit board sets up inside the box body, through setting up the bleeder vent, can balance box body internal gas pressure and external atmospheric pressure, avoids this closing means to lead to the box body to warp because of the internal and external pressure inequality, and the device exists unable regulation size in using novel power electronic device, and causes contact failure scheduling problem because of dust etc. easily.

Therefore, it is necessary to provide a new shutdown device for power electronic devices to solve the above problems.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a novel shutoff device for power electronic devices, which can effectively solve the problems in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a novel power electronic device's shutoff device, includes the box, the inner chamber wall body of box is provided with the electric power conduction structure, the top of electric power conduction structure is provided with switching mechanism, switching mechanism includes tooth's socket, first spacing groove, sealing ring, screw rod, carousel, fixed block, seal groove.

Preferably, the tooth's socket has been seted up at the top of box, first spacing groove has been seted up to the inner chamber bottom of tooth's socket, the shape of first spacing groove sets up to fan-shaped, the quantity of first spacing groove has two, and the symmetry sets up in the inner chamber bottom of tooth's socket, the opening part fixedly connected with sealing ring of tooth's socket, the middle part of tooth's socket is inserted and is equipped with the screw rod, the top fixedly connected with carousel of screw rod, the bottom fixedly connected with fixed block of screw rod, the seal groove has been seted up at the middle part of screw rod, the position of seal groove is corresponding with the position of sealing ring, the inner chamber size of seal groove and the big or small looks adaptation of sealing ring, the inner chamber shape of seal groove sets up to ring shape, the sealing ring sets up the inside at the seal groove.

Preferably, the length of fixed block is greater than the diameter of screw, the length of fixed block and the inner chamber diameter looks adaptation of first spacing groove, the size of fixed block and the inner chamber size looks adaptation of first spacing groove, the fixed block sets up the inside at first spacing groove, the carousel sets up the top at the box.

Preferably, the power conduction structure comprises a groove, a wire groove, a second limiting groove, two first conducting blocks, two fixing rods, two limiting blocks, a conducting wire, a spring, two second conducting blocks and a copper sheet, wherein the two second conducting blocks are symmetrically arranged in the middle of wall bodies on the left side and the right side of an inner cavity of the first limiting groove, and the copper sheets are fixedly connected to one sides of the two second conducting blocks, which are opposite to each other.

Preferably, the left and right sides wall body symmetry of fixed block is seted up flutedly, the wire casing has been seted up to recess inner chamber's relative lateral wall body symmetry, the inner chamber of wire casing is close to one side of recess and has been seted up the second spacing groove, the inner chamber middle part of recess is provided with first conducting block, two the relative one side fixedly connected with dead lever of first conducting block, the one end fixedly connected with stopper of first conducting block is kept away from to the dead lever, one side fixedly connected with conductor wire that the dead lever was kept away from to the stopper, the pot head that the conductor wire is close to the stopper is equipped with the spring.

Preferably, the size of first conducting block and the inner chamber size looks adaptation of dead lever, the diameter of dead lever and the inner chamber diameter looks adaptation of wire casing, the dead lever is kept away from the inside that the one end of first conducting block extends to the wire casing, the size of stopper and the inner chamber size looks adaptation of second spacing groove, the stopper sets up the inside at the second spacing groove, the spring sets up the inside at the second spacing groove, the conductor wire sets up inside the wire casing.

Advantageous effects

Compared with the prior art, the utility model provides a novel shutoff of power electronic device possesses following beneficial effect:

1. this novel power electronic device's turn-off device, the cooperation through the sealing ring that sets up and seal groove can play sealed effect to the tooth's socket, prevents to rust between tooth's socket and the screw rod, influences the use.

2. This novel power electronic device's turn-off device, the cooperation through the carousel that sets up and screw rod, fixed block, tooth's socket, first spacing groove can be through the angle of rotatory carousel adjustment fixed block, and then the position of both ends and second conducting block about the adjustment fixed block, can realize the effect of switch, and then play the effect of turn-off, can prescribe a limit to the position of fixed block and second conducting block simultaneously, convenient operation.

3. This novel power electronic device's turn-off device can make first conducting block have an outside power all the time through the cooperation of the first conducting block that sets up and dead lever, stopper, conductor wire, spring, recess, wire casing, second spacing groove, and then makes the wall body of first conducting block and the wall body contact of second conducting block more abundant, improves the connection effect, plays spacing effect simultaneously.

4. This novel power electronic device's turn-off device, the second conducting block through setting up and the cooperation of copper sheet, first conducting block can accomplish to the copper sheet about both ends be connected and close, can be simultaneously according to the power that area of contact adjustment electric current passes through, can save the resource.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

fig. 3 is a top sectional view of the first limiting groove of the present invention.

In the figure: 1. a box body; 2. an electrically conductive structure; 3. a switch mechanism; 4. a tooth socket; 5. a first limit groove; 6. a seal ring; 7. a screw; 8. a turntable; 9. a fixed block; 10. a sealing groove; 11. a groove; 12. a wire slot; 13. a second limit groove; 14. a first conductive block; 15. fixing the rod; 16. a limiting block; 17. a conductive wire; 18. a spring; 19. a second conductive block; 20. a copper sheet.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-3, a novel turn-off device for power electronic devices comprises a box body 1, an inner cavity wall body of the box body 1 is provided with a power conduction structure 2, the top of the power conduction structure 2 is provided with a switch mechanism 3, the switch mechanism 3 comprises tooth sockets 4, first limit grooves 5, sealing rings 6, screw rods 7, a rotary plate 8, fixing blocks 9 and sealing grooves 10, the top of the box body 1 is provided with the tooth sockets 4, the bottom of the inner cavity of the tooth sockets 4 is provided with the first limit grooves 5, the first limit grooves 5 are fan-shaped, the number of the first limit grooves 5 is two, the first limit grooves are symmetrically arranged at the bottom of the inner cavity of the tooth sockets 4, the opening of the tooth sockets 4 is fixedly connected with the sealing rings 6, the middle parts of the tooth sockets 4 are inserted with the screw rods 7, the top of the screw rods 7 is fixedly connected with the rotary plate 8, the bottom of the screw rods 7 is fixedly connected with the fixing blocks 9, and the middle parts of the screw rods 7 are provided with the sealing grooves 10, the position of a sealing groove 10 corresponds to the position of a sealing ring 6, the size of an inner cavity of the sealing groove 10 is matched with the size of the sealing ring 6, the shape of the inner cavity of the sealing groove 10 is annular, the sealing ring 6 is arranged in the sealing groove 10, the sealing effect on a tooth socket 4 can be realized through the matching of the arranged sealing ring 6 and the sealing groove 10, the rusting between the tooth socket 4 and a screw 7 is prevented, the use is influenced, the length of a fixing block 9 is larger than the diameter of the screw 7, the length of the fixing block 9 is matched with the diameter of the inner cavity of a first limiting groove 5, the size of the fixing block 9 is matched with the size of the inner cavity of the first limiting groove 5, the fixing block 9 is arranged in the first limiting groove 5, a turntable 8 is arranged at the top of a box body 1, the angle of the fixing block 9 can be adjusted through the matching of the arranged turntable 8 and the screw 7, the fixing block 9, the tooth socket 4 and the first limiting groove 5, and then adjust the position of the left and right ends of the fixed block 9 and the second conductive block 19, can realize the function of a switch, and then play a role of turning off, can limit the position of the fixed block 9 and the second conductive block 19 at the same time, convenient operation, the power conducting structure 2 includes the groove 11, the slot 12, the second limit groove 13, the first conductive block 14, the dead lever 15, the limited block 16, the conductor wire 17, the spring 18, the second conductive block 19, the copper sheet 20, the quantity of the second conductive block 19 is two, the second conductive block 19 is symmetrically arranged in the middle of the left and right side wall body of the cavity of the first limit groove 5, one side of the two second conductive blocks 19 opposite to each other is fixedly connected with the copper sheet 20, through the cooperation of the second conductive block 19, the copper sheet 20, the first conductive block 14, can finish the connection and the closing of the left and right ends of the copper sheet 20, at the same time, according to the contact area, the left and right sides of the fixed block 9 are symmetrically provided with the groove 11, the wire grooves 12 are symmetrically formed in the wall body on the opposite side of the inner cavity of the groove 11, the second limiting groove 13 is formed in the inner cavity of the wire groove 12 on the side close to the groove 11, the first conducting blocks 14 are arranged in the middle of the inner cavity of the groove 11, the fixing rods 15 are fixedly connected to the opposite sides of the two first conducting blocks 14, the limiting blocks 16 are fixedly connected to the ends, far away from the first conducting blocks 14, of the limiting blocks 15, the conducting wires 17 are sleeved with the springs 18, the first conducting blocks 14 can always have an outward force through the matching of the arranged first conducting blocks 14, the fixing rods 15, the limiting blocks 16, the conducting wires 17, the springs 18, the groove 11, the wire grooves 12 and the second limiting grooves 13, so that the wall body of the first conducting blocks 14 is in full contact with the wall body of the second conducting blocks 19, and the connection effect is improved, play spacing effect simultaneously, the size of first conducting block 14 and the inner chamber size looks adaptation of dead lever 15, the diameter of dead lever 15 and the inner chamber diameter looks adaptation of wire casing 12, the dead lever 15 is kept away from the inside that the one end of first conducting block 14 extends to wire casing 12, the size of stopper 16 and the inner chamber size looks adaptation of second spacing groove 13, stopper 16 sets up the inside at second spacing groove 13, spring 18 sets up the inside at second spacing groove 13, conductor wire 17 sets up inside wire casing 12.

The first embodiment is as follows: the connection buckle, the connecting block and the like can be arranged at the connection part of the copper sheet 20 and the box body 1, so that the copper sheet 20 can be conveniently detached, and the copper sheet 20 is prevented from being broken and not easy to replace.

The second embodiment is as follows: both sides can be provided with the connecting block around box 1, and fixed hole has been seted up on the connecting block surface, and the convenience is installed fixedly to box 1.

It should be noted that, the utility model relates to a novel shutoff device for power electronic device, when in use, only the rotary disc 8 needs to be rotated to drive the fixed block 9 to rotate through the screw 7, the fixed block 9 is rotated ninety degrees in the first limit groove 5, the positions of the first conductive blocks 14 at the left and right sides of the fixed block 9 are opposite to the positions of the second conductive blocks 19, and the first conductive blocks 14 are attached to the wall body of the second conductive blocks 19, so as to complete the opening, when the current throughput needs to be adjusted, the rotary disc 8 can be slightly rotated reversely to slowly stagger the first conductive blocks 14 and the second conductive blocks 19, so as to reduce the contact area, so as to complete the opening, through the matching of the sealing ring 6 and the sealing groove 10, the sealing propagation dust at the top of the tooth socket 4 can enter the sealing groove 10 and the inside of the first limit groove 5, thereby playing a protection role, and through the thrust of the arranged spring 18 to the limit block 16, the fixing rod 15 is transmitted to the first conductive block 14 to generate an outward pushing force on the first conductive block 14, so that the first conductive block 14 and the second conductive block 19 can be more closely contacted.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a novel power electronic device's shutoff device, includes box (1), its characterized in that: the inner chamber wall body of box (1) is provided with electric power conduction structure (2), the top of electric power conduction structure (2) is provided with on-off mechanism (3), on-off mechanism (3) include tooth's socket (4), first spacing groove (5), sealing ring (6), screw rod (7), carousel (8), fixed block (9), seal groove (10).

2. A novel power electronic device turn-off device as claimed in claim 1, wherein: the top of the box body (1) is provided with a tooth groove (4), the bottom of an inner cavity of the tooth groove (4) is provided with a first limiting groove (5), the shape of the first limiting groove (5) is fan-shaped, the number of the first limiting grooves (5) is two, the first limiting grooves are symmetrically arranged at the bottom of the inner cavity of the tooth groove (4), the opening of the tooth groove (4) is fixedly connected with a sealing ring (6), the middle part of the tooth groove (4) is inserted with a screw rod (7), the top of the screw rod (7) is fixedly connected with a turntable (8), the bottom of the screw rod (7) is fixedly connected with a fixing block (9), the middle part of the screw rod (7) is provided with a sealing groove (10), the position of the sealing groove (10) corresponds to the position of the sealing ring (6), the size of the inner cavity of the sealing groove (10) is matched with the size of the sealing ring (6), and the shape of the inner cavity of the sealing groove (10) is ring in a circular shape, the sealing ring (6) is arranged inside the sealing groove (10).

3. A novel power electronic device turn-off device as claimed in claim 2, wherein: the length of fixed block (9) is greater than the diameter of screw rod (7), the length of fixed block (9) and the inner chamber diameter looks adaptation of first spacing groove (5), the size of fixed block (9) and the inner chamber size looks adaptation of first spacing groove (5), fixed block (9) set up the inside in first spacing groove (5), carousel (8) set up the top at box (1).

4. A novel power electronic device turn-off device as claimed in claim 3, wherein: the power conduction structure (2) comprises a groove (11), a wire groove (12), a second limiting groove (13), first conducting blocks (14), fixing rods (15), limiting blocks (16), conducting wires (17), springs (18), second conducting blocks (19) and copper sheets (20), wherein the number of the second conducting blocks (19) is two, the second conducting blocks (19) are symmetrically arranged in the middle of wall bodies on the left side and the right side of an inner cavity of the first limiting groove (5), and the copper sheets (20) are fixedly connected to one side of the second conducting blocks (19) in a back-to-back mode.

5. A novel turn-off device for power electronic devices according to claim 4, characterized in that: the left and right sides wall body symmetry of fixed block (9) is seted up flutedly (11), wire casing (12) have been seted up to the relative lateral wall body symmetry of recess (11) inner chamber, second spacing groove (13) have been seted up to one side that the inner chamber of wire casing (12) is close to recess (11), the inner chamber middle part of recess (11) is provided with first conducting block (14), two relative one side fixedly connected with dead lever (15) of first conducting block (14), the one end fixedly connected with stopper (16) of first conducting block (14) are kept away from in dead lever (15), one side fixedly connected with conductor wire (17) of dead lever (15) are kept away from in stopper (16), the pot head that conductor wire (17) is close to stopper (16) is equipped with spring (18).

6. A novel turn-off device for power electronic devices according to claim 5, characterized in that: the size of first conducting block (14) and the inner chamber size looks adaptation of dead lever (15), the diameter of dead lever (15) and the inner chamber diameter looks adaptation of wire casing (12), the one end that first conducting block (14) were kept away from in dead lever (15) extends to the inside of wire casing (12), the size of stopper (16) and the inner chamber size looks adaptation of second spacing groove (13), stopper (16) set up the inside in second spacing groove (13), spring (18) set up the inside in second spacing groove (13), conductor wire (17) set up inside wire casing (12).