CN112054709A - Three-phase four-leg inverter with water seepage prevention mechanism - Google Patents
Three-phase four-leg inverter with water seepage prevention mechanism Download PDFInfo
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- CN112054709A CN112054709A CN202010993933.0A CN202010993933A CN112054709A CN 112054709 A CN112054709 A CN 112054709A CN 202010993933 A CN202010993933 A CN 202010993933A CN 112054709 A CN112054709 A CN 112054709A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Inverter Devices (AREA)
Abstract
The invention belongs to the technical field of inverters, and particularly relates to a three-phase four-leg inverter with a water seepage prevention mechanism, which comprises a bearing mechanism, wherein the bearing mechanism comprises an inverter body, an output end and an input end which are arranged on the end surface of the inverter body, one end of the inverter body is provided with a switch, and two ends of the inverter body are respectively provided with a plurality of straight-line circulation holes which are arranged at equal intervals; the second through hole on the switching board is staggered with the first through hole on the protective cover, the first through hole is not communicated with the second through hole, water flow can not enter, air flow circulates through the telescopic pipe in the fixed pipe, the connecting pipe and the switching pipe under the action of the fan inside the inverter body, normal heat dissipation is guaranteed, when the water level liquid level contacts the floating plate, the floating plate rises synchronously along with the rising of the liquid level, the connecting pipe on the floating plate drives the telescopic pipe to extend upwards, water flow can not enter the inverter body, the normal circulation heat dissipation of air flow is guaranteed, and the water seepage prevention effect is good.
Description
Technical Field
The invention belongs to the technical field of inverters, and particularly relates to a three-phase four-leg inverter with a water seepage prevention mechanism.
Background
The inverter converts direct current electric energy into alternating current, consists of an inverter bridge, control logic and a filter circuit, is widely applied to air conditioners, home theaters, electric grinding wheels, electric tools, sewing machines, DVDs, VCDs, computers, televisions, washing machines, smoke exhaust ventilators, refrigerators, video recorders, massagers, fans, lighting and the like, and in the inverter, a three-phase four-wire inverter provides a zero-sequence current path through a central line.
The chinese patent with publication number CN207625463U discloses an inverter that is difficult for infiltration, it can be with the moisture of infiltration through the quick inflow intracavity that inclines the passageway, then utilize the eight characters round hole that falls of chamber bottom of catchmenting to flow, make inside water is difficult for infiltrating the inverter, but when the liquid level that the flood was attacked is higher, the chamber of catchmenting can't effectually carry out whole collection to water, rivers still can enter into the inverter body inside, cause the damage to inside electronic components, prevention of seepage water effect has certain limitation.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides a three-phase four-bridge arm inverter with a water seepage prevention mechanism, which has the characteristic of good water seepage prevention effect.
In order to achieve the purpose, the invention provides the following technical scheme: the three-phase four-leg inverter with the water seepage prevention mechanism comprises a bearing mechanism, wherein the bearing mechanism comprises an inverter body, an output end and an input end which are arranged on the end surface of the inverter body, one end of the inverter body is provided with a switch, both ends of the inverter body are respectively provided with a plurality of straight-line equidistant circulation holes which are arranged at intervals, both ends of the inverter body are respectively provided with a protection mechanism, the top surface of each protection mechanism is respectively provided with two symmetrically arranged communication mechanisms, each protection mechanism comprises a protection cover, a switching plate and a pressing plate, the protection cover is fixedly connected with the inverter body, the protection cover covers the outer sides of the circulation holes, one side of the protection cover, which is far away from the inverter body, is provided with a plurality of straight-line equidistant first through holes which are arranged at intervals, the switching plate slides on the inner wall of the long edge of the protection cover, the clamp plate is fixed the inner wall bottom surface of protection casing, the switch board slides the protection casing with between the clamp plate, the top side fixedly connected with pinion rack of switch board, the top surface fixedly connected with motor of protection casing, the output shaft of motor with the pinion rack transmission is connected, the intercommunication mechanism includes that fixed pipe and cover establish at its inside flexible pipe, the bottom of flexible pipe with the inner wall bottom fixed connection of fixed pipe, the bottom of fixed pipe is run through fixedly the protection casing, the top fixedly connected with connecting pipe of flexible pipe, the outer wall cover of connecting pipe is established and is fixed with the kickboard, the output with the outside of input all overlaps and is equipped with complementary unit.
Preferably, the bottom surface of the floating plate is fixedly connected with two symmetrically arranged insertion pipes, the bottom surfaces of the insertion pipes are slidably inserted with fixing rods, and the bottom ends of the fixing rods are fixed on the top surface of the protective cover.
Preferably, the top end of the connecting pipe is fixedly connected with a switching pipe.
Preferably, an output shaft of the motor is coaxially and fixedly connected with a gear, and the gear is meshed with the toothed plate.
Preferably, the auxiliary mechanism comprises a magnetic ring and a sealing ring coaxially fixed at one end of the magnetic ring, the sealing ring is far away from one end of the magnetic ring, which is integrally formed with a narrowing pipe, and the magnetic ring is magnetically connected with the inverter body.
Preferably, the sealing ring and the narrowing pipe are both made of rubber.
Preferably, the floating plate is made of polyurethane foam.
Preferably, the sum of the lengths of the insertion tube and the fixed rod is greater than the maximum effective length of the telescopic tube.
Preferably, the open end of the adapter tube faces downward.
Preferably, the length of the fixed tube is greater than the minimum effective length of the telescopic tube.
Compared with the prior art, the invention has the beneficial effects that:
when taking place the flood, the second through-hole on the switching board is crisscross each other with the first through-hole on the protection casing, first through-hole and second through-hole do not communicate, rivers can not get into, the air current circulates via the flexible pipe in the fixed tube under the effect of the inside fan of dc-to-ac converter body, connecting pipe and switching pipe, guarantee normal heat dissipation, if the water level lasts the rising, when water level liquid level contact kickboard, under the effect of kickboard buoyancy, the kickboard rises along with the rising of liquid level in step, connecting pipe on the kickboard drives flexible pipe upwards to extend, rivers can not get into inside the dc-to-ac converter body, guarantee the normal circulation heat dissipation of air current, prevention of seepage water effect.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the flow-through pore structure of the present invention;
FIG. 3 is a schematic view of the guard mechanism of the present invention;
FIG. 4 is a schematic structural diagram of a switch plate according to the present invention;
FIG. 5 is a schematic view of the communication mechanism of the present invention;
fig. 6 is a schematic structural view of an auxiliary mechanism in the present invention.
In the figure: 1. a carrying mechanism; 101. a flow-through hole; 11. an inverter body; 12. an output end; 13. a switch; 14. an input end; 2. a protection mechanism; 201. a first through hole; 202. a second through hole; 21. a protective cover; 22. a switch board; 221. a toothed plate; 23. pressing a plate; 24. a motor; 241. a gear; 3. a communicating mechanism; 31. a fixed tube; 32. a telescopic pipe; 33. a floating plate; 34. a connecting pipe; 341. a transfer tube; 35. inserting a tube; 36. fixing the rod; 4. an auxiliary mechanism; 41. a magnetic ring; 42. a seal ring; 43. and (4) narrowing the tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides the following technical solutions: a three-phase four-leg inverter with a water seepage prevention mechanism comprises a bearing mechanism 1, wherein the bearing mechanism 1 comprises an inverter body 11, an output end 12 and an input end 14 which are installed on the end face of the inverter body, one end of the inverter body 11 is provided with a switch 13, both ends of the inverter body 11 are respectively provided with a plurality of straight-line flow holes 101 which are equidistantly arranged, both ends of the inverter body 11 are respectively provided with a protection mechanism 2, the top surface of each protection mechanism 2 is respectively provided with two symmetrically arranged communication mechanisms 3, each protection mechanism 2 comprises a protection cover 21, a switching plate 22 and a pressing plate 23, the protection cover 21 is fixedly connected with the inverter body 11, the protection cover 21 covers the outer side of each flow hole 101, one side of the protection cover 21, which is far away from the inverter body 11, is provided with a plurality of first through holes 201 which are equidistantly arranged in a straight line, the switching plate 22 slides on the inner, the inner wall bottom surface at the protection casing 21 is fixed to clamp plate 23, switch board 22 slides between protection casing 21 and clamp plate 23, the top side fixedly connected with pinion rack 221 of switch board 22, the top surface fixedly connected with motor 24 of protection casing 21, the output shaft and the pinion rack 221 transmission of motor 24 are connected, the intercommunication mechanism 3 establishes its inside flexible pipe 32 including fixed pipe 31 and cover, the bottom of flexible pipe 32 and the inner wall bottom fixed connection of fixed pipe 31, fixed protection casing 21 is run through to the bottom of fixed pipe 31, the top fixedly connected with connecting pipe 34 of flexible pipe 32, the outer wall cover of connecting pipe 34 is established and is fixed with kickboard 33, output 12 and the outside of input 14 all overlap and are equipped with complementary unit 4.
In this embodiment: when in normal use, the second through hole 202 on the switch plate 22 corresponds to the first through hole 201 on the protective cover 21, under the action of the fan inside the inverter body 11, the airflow can circulate and dissipate heat through the first through hole 201, the second through hole 202 and the circulation hole 101, when a flood occurs, the motor 24 (model 42CM 02) drives the switch plate 22 to slide through the toothed plate 221, the pressing plate 23 guides and limits the sliding of the switch plate 22, the second through hole 202 on the switch plate 22 and the first through hole 201 on the protective cover 21 are mutually staggered, the first through hole 201 and the second through hole 202 are not communicated, the water flow cannot enter, the air flows through the telescopic pipe 32, the connecting pipe 34 and the adapter pipe 341 inside the fixed pipe 31 under the action of the fan inside the inverter body 11 to circulate, so as to ensure normal heat dissipation, if the water level continuously rises, when the liquid level contacts the floating plate 33, under the action of the floating force of the floating plate 33, the floating plate 33 rises synchronously with the rising of the liquid level, the connecting pipe 34 on the floating plate 33 drives the telescopic pipe 32 to extend upwards, water flow cannot enter the inverter body 11, the normal circulation heat dissipation of air flow is ensured, the water seepage prevention effect is better, meanwhile, when the connecting line is connected with the output end 12 or the input end 14, the magnetic suction ring 41 is taken down and then sleeved outside the connecting line, the narrow pipe 43 on the sealing ring 42 is tightly attached to the outer wall of the connecting line, the connecting line is sealed, then the connecting line is connected with the output end 12 or the input end 14, after the connection is completed, the magnetic suction ring 41 is connected with the inverter body 11 in a magnetic suction mode, the joint of the connecting line is sealed, the water seepage prevention effect is further improved, and when the liquid level of a flood is higher, the inverter body 11 can still work.
Specifically, the bottom surface of the floating plate 33 is fixedly connected with two symmetrically arranged insertion pipes 35, the bottom surfaces of the insertion pipes 35 are slidably inserted with fixing rods 36, and the bottom ends of the fixing rods 36 are fixed on the top surface of the protective cover 21; when the floating plate 33 floats upwards, the insertion pipe 35 slides upwards along the fixing rod 36 to guide and limit the floating plate 33, so that the floating plate 33 is prevented from driving the telescopic pipe 32 to incline, normal circulation of air flow is guaranteed, and stability is improved.
Specifically, the top end of the connection tube 34 is fixedly connected with a switching tube 341; the flow direction of the air flow is changed by the adapter tube 341, and rainwater is prevented from entering the connection tube 34.
Specifically, an output shaft of the motor 24 is coaxially and fixedly connected with a gear 241, and the gear 241 is meshed with the toothed plate 221; the motor 24 drives the gear 241 to rotate, the gear 241 drives the switching plate 22 to slide through the toothed plate 221, and transmission is stable.
Specifically, the auxiliary mechanism 4 includes a magnetic ring 41 and a sealing ring 42 coaxially fixed at one end thereof, a narrowing pipe 43 is integrally formed at one end of the sealing ring 42 away from the magnetic ring 41, and the magnetic ring 41 is magnetically connected with the inverter body 11; when the connecting wire is connected with output 12 or input 14, inhale ring 41 with magnetism and take off, then the cover is established in the connecting wire outside, and make the receipts narrow tube 43 on the sealing washer 42 hug closely at the connecting wire outer wall, seal the connecting wire, then be connected the connecting wire with output 12 or input 14, connect the back well, inhale ring 41 with magnetism and inhale with inverter body 11 and be connected, seal the joint department of connecting wire, further improve prevention of seepage water effect, when the flood liquid level is higher, inverter body 11 still can normally work.
Specifically, the sealing ring 42 and the narrowing tube 43 are both made of rubber; can carry out deformation along with the diameter of connecting wire, better and the connecting wire laminating is sealed.
Specifically, the floating plate 33 is made of polyurethane foam; the buoyancy is better, and the normal buoyancy is ensured.
Specifically, the sum of the lengths of the insertion tube 35 and the fixed rod 36 is greater than the maximum effective length of the telescopic tube 32; when the telescopic tube 32 is extended to the maximum effective length, the insertion tube 35 and the fixing rod 36 can still guide it.
Specifically, the open end of the adapter tube 341 faces downward; further preventing rain water from entering.
Specifically, the length of the fixed tube 31 is greater than the minimum effective length of the telescopic tube 32; when the telescopic tube 32 is contracted to the minimum length, the telescopic tube 32 can be completely accommodated in the fixed tube 31, and the fixed tube 31 protects the telescopic tube 32.
The working principle and the using process of the invention are as follows: when in normal use, the second through hole 202 on the switching plate 22 corresponds to the first through hole 201 on the protective cover 21, under the action of the fan inside the inverter body 11, the airflow can circulate and dissipate heat through the first through hole 201, the second through hole 202 and the circulation hole 101, when a flood occurs, the motor 24 drives the switching plate 22 to slide through the toothed plate 221, the pressing plate 23 guides and limits the sliding of the switching plate 22, the second through hole 202 on the switching plate 22 is staggered with the first through hole 201 on the protective cover 21, the first through hole 201 is not communicated with the second through hole 202, the water flow cannot enter, the airflow circulates through the telescopic tube 32, the connecting tube 34 and the adapter tube 341 inside the fixed tube 31 under the action of the fan inside the inverter body 11, so as to ensure normal heat dissipation, if the water level continuously rises, when the water level contacts the floating plate 33, the floating plate 33 rises synchronously with the rising of the liquid level under the action of the floating plate 33, connecting pipe 34 on kickboard 33 drives flexible pipe 32 and upwards extends, rivers can not get into inside inverter body 11, guarantee the normal circulation heat dissipation of air current, the prevention of seepage water effect is better, and simultaneously, when the connecting wire is connected with output 12 or input 14, inhale ring 41 and take off, then the cover is established in the connecting wire outside, and make the receipts narrow tube 43 on the sealing washer 42 hug closely at the connecting wire outer wall, seal the connecting wire, then be connected the connecting wire with output 12 or input 14, connect the back well, inhale ring 41 and inverter body 11 magnetism and be connected, seal the joint department of connecting wire, further improve the prevention of seepage water effect, when the flood liquid level is higher, inverter body 11 still can normally work.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. Four bridge arm inverters of three-phase with prevention of seepage water mechanism, including bearing mechanism (1), bearing mechanism (1) including inverter body (11) and install output (12) and input (14) at its terminal surface, switch (13) are installed to the one end of inverter body (11), runner hole (101) that a plurality of straight line equidistance interval arrangement, its characterized in that have all been seted up at the both ends of inverter body (11): protection mechanisms (2) are installed at two ends of the inverter body (11), two symmetrically-arranged communication mechanisms (3) are installed on the top surface of each protection mechanism (2), each protection mechanism (2) comprises a protection cover (21), a switching plate (22) and a pressing plate (23), the protection covers (21) are fixedly connected with the inverter body (11), the protection covers (21) are covered outside the circulation holes (101), one side, far away from the inverter body (11), of each protection cover (21) is provided with a plurality of first through holes (201) which are arranged at equal intervals in a straight line mode, the switching plate (22) slides on the long-edge inner wall of each protection cover (21), the switching plate (22) is provided with a plurality of second through holes (202) corresponding to the first through holes (201), and the pressing plates (23) are fixed on the bottom surface of the inner wall of each protection cover (21), the switch plate (22) slides between the protective cover (21) and the pressure plate (23), a toothed plate (221) is fixedly connected to the side surface of the top end of the switching plate (22), a motor (24) is fixedly connected to the top surface of the protective cover (21), the output shaft of the motor (24) is in transmission connection with the toothed plate (221), the communicating mechanism (3) comprises a fixed pipe (31) and an extension pipe (32) sleeved in the fixed pipe, the bottom end of the extension tube (32) is fixedly connected with the bottom end of the inner wall of the fixed tube (31), the bottom end of the fixed pipe (31) penetrates and is fixed with the protective cover (21), the top end of the telescopic pipe (32) is fixedly connected with a connecting pipe (34), the outer wall cover of connecting pipe (34) is established and is fixed with kickboard (33), output (12) with the outside of input (14) all is overlapped and is equipped with complementary unit (4).
2. The three-phase four-leg inverter with the water seepage prevention mechanism according to claim 1, wherein: the bottom surface of the floating plate (33) is fixedly connected with two symmetrically arranged insertion pipes (35), the bottom surfaces of the insertion pipes (35) are inserted with fixing rods (36) in a sliding mode, and the bottom ends of the fixing rods (36) are fixed to the top surface of the protective cover (21).
3. The three-phase four-leg inverter with the water seepage prevention mechanism according to claim 1, wherein: the top end of the connecting pipe (34) is fixedly connected with a switching pipe (341).
4. The three-phase four-leg inverter with the water seepage prevention mechanism according to claim 1, wherein: an output shaft of the motor (24) is coaxially and fixedly connected with a gear (241), and the gear (241) is meshed with the toothed plate (221).
5. The three-phase four-leg inverter with the water seepage prevention mechanism according to claim 1, wherein: supplementary mechanism (4) are including inhaling ring (41) and coaxial sealing washer (42) of fixing in its one end of inhaling, sealing washer (42) are kept away from inhale one end integrated into one piece of ring (41) have and receive narrow pipe (43) inhale magnetism, inhale magnetism ring (41) with inverter body (11) magnetism is inhaled and is connected.
6. The three-phase four-leg inverter with the water seepage prevention mechanism according to claim 5, wherein: the sealing ring (42) and the narrowing pipe (43) are both made of rubber.
7. The three-phase four-leg inverter with the water seepage prevention mechanism according to claim 1, wherein: the floating plate (33) is made of polyurethane foam.
8. The three-phase four-leg inverter with the water seepage prevention mechanism according to claim 2, wherein: the sum of the lengths of the insertion tube (35) and the fixed rod (36) is larger than the maximum effective length of the telescopic tube (32).
9. The three-phase four-leg inverter with the water seepage prevention mechanism according to claim 3, wherein: the open end of the adapter tube (341) faces downwards.
10. The three-phase four-leg inverter with the water seepage prevention mechanism according to claim 1, wherein: the length of the fixed pipe (31) is larger than the minimum effective length of the telescopic pipe (32).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010993933.0A CN112054709B (en) | 2020-09-21 | 2020-09-21 | Three-phase four-leg inverter with water seepage prevention mechanism |
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| CN202010993933.0A CN112054709B (en) | 2020-09-21 | 2020-09-21 | Three-phase four-leg inverter with water seepage prevention mechanism |
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| CN112054709B CN112054709B (en) | 2021-07-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113013561A (en) * | 2021-02-25 | 2021-06-22 | 长春汽车工业高等专科学校 | New energy automobile battery emergency treatment device based on aperture throttle |
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| CN112054709B (en) | 2021-07-27 |
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Effective date of registration: 20211220 Address after: 314000 building 3, No. 1, Chuangye Road, Xindai Town, Pinghu City, Jiaxing City, Zhejiang Province Patentee after: Feilai (Zhejiang) Technology Co.,Ltd. Address before: 314000 west half of the ground floor of building 3, East District, Haiyan science and Technology Pioneer Park, 211 Yanbei Road, Wuyuan street, Haiyan County, Jiaxing City, Zhejiang Province Patentee before: Zhejiang Wenshan Electric Technology Co.,Ltd. |