CN215186418U

CN215186418U - Counter-current protection device of frequency converter and frequency converter

Info

Publication number: CN215186418U
Application number: CN202120549477.0U
Authority: CN
Inventors: 曾俊明; 欧阳明德; 欧阳明凤
Original assignee: Shenzhen Xinyueyang New Energy Co ltd
Current assignee: Shenzhen Xinyueyang New Energy Co ltd
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2021-12-14
Anticipated expiration: 2031-03-17

Abstract

The utility model relates to a converter technical field just discloses a reverse current protection device and converter of converter, including the converter body, the front of converter body is provided with two promotion subassemblies, two the top that promotes the subassembly all is provided with the holder, two the inside of holder all is provided with the connection port, the front of converter body is provided with spacing subassembly, it includes fixed box, push rod, sliding block, dysmorphism groove, movable block, hinge bar and spring, two to promote the subassembly the equal fixed connection of fixed box is in the front of converter body, two the sliding block is sliding connection to the inside of two fixed boxes respectively, two the push rod is fixed connection to the front of two sliding blocks respectively. The utility model discloses a, positive negative pole connects the condition of turning over when reducible DC power supply input is connected with DC power supply and takes place to reduce the converter and appear adverse current phenomenon, thereby protect converter internal element.

Description

Counter-current protection device of frequency converter and frequency converter

Technical Field

The utility model relates to a converter technical field specifically is a reverse current protection device and converter of converter.

Background

The frequency converter is a power control device which applies frequency conversion technology and microelectronic technology and controls an alternating current motor by changing the frequency mode of a working power supply of the motor, and mainly comprises a rectification unit (alternating current to direct current), a filtering unit, an inversion unit (direct current to alternating current), a braking unit, a driving unit, a detection unit and a microprocessing unit.

In the existing frequency converter, if the positive electrode and the negative electrode are connected reversely when the input end of a direct current power supply is connected with the direct current power supply, the frequency converter can generate a reverse flow phenomenon, so that internal elements of the frequency converter are easily damaged, and a reverse flow protection device of the frequency converter and the frequency converter are provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a counter current protection device and converter of converter, positive negative pole connects the condition of turning over when possessing reducible DC power supply input and DC power supply and takes place when being connected, thereby reduce the converter and appear adverse current phenomenon, thereby advantage such as protect converter internal element has been solved, current converter, positive negative pole connects when DC power supply input and DC power supply are connected inversely, the phenomenon can appear against the current in the converter, thereby easily lead to the problem that converter internal element damaged.

(II) technical scheme

Positive negative pole connects the condition of turning over when being connected with DC power supply to take place for realizing above-mentioned reducible DC power supply input to reduce the converter and appear adverse current phenomenon, thereby protect the purpose to converter internal element, the utility model provides a following technical scheme: the utility model provides a protection device against current of converter, includes the converter body, the front of converter body is provided with two promotion subassemblies, two the top of promotion subassembly all is provided with the holder, two the inside of holder all is provided with interface, the front of converter body is provided with spacing subassembly.

Preferably, the pushing assembly comprises fixed boxes, push rods, sliding blocks, special-shaped grooves, moving blocks, hinge rods and springs, wherein the two fixed boxes are fixedly connected to the front surface of the frequency converter body, the two sliding blocks are respectively and slidably connected to the insides of the two fixed boxes, the two push rods are respectively and fixedly connected to the front surfaces of the two sliding blocks, one ends of the front surfaces of the two push rods are respectively penetrated through and slidably connected to the front surfaces of the two fixed boxes, the two special-shaped grooves are respectively formed in the insides of the two sliding blocks, the two moving blocks are respectively and slidably connected to the insides of the two special-shaped grooves, the bottoms of the two moving blocks are respectively and hingedly connected with the two hinge rods, one ends of the back surfaces of the two hinge rods are respectively and hingedly connected to the insides of the two fixed boxes, the two springs are respectively and fixedly connected to the back surfaces of the two sliding blocks, and one ends of the back surfaces of the two springs are respectively and fixedly connected to the insides of the two fixed boxes, and one end of the front surface of each push rod is fixedly connected with an integrally formed push plate.

Preferably, the holder includes two fixed blocks and two grip blocks, two the bottom of fixed block runs through respectively and sliding connection to the inside of two fixed boxes, two the fixed block is fixed connection respectively to the top of two sliding blocks, four the grip block is fixed connection respectively to the left and right sides of two fixed blocks, two connection port sliding connection respectively to the relative one side of two adjacent grip blocks.

Preferably, the limiting assembly comprises two fixing frames, a limiting block and a limiting rod, the two fixing frames are respectively and fixedly connected to the tops of the two connecting ports, the limiting block and the limiting rod are respectively and fixedly connected to the back faces of the two fixing frames, and a limiting groove and a limiting hole are respectively formed in the front face of the frequency converter body.

A frequency converter comprises the reverse current protection device of the frequency converter and further comprises a bottom plate, and the frequency converter body is fixedly mounted to the top of the bottom plate.

(III) advantageous effects

Compared with the prior art, the utility model provides a counter current protection device and converter of converter possesses following beneficial effect:

1. this protection device against current and converter of converter through the setting of two promotion subassemblies, is convenient for drive two connection ports and converter body and is connected, breaks off, utilizes the setting of two holders, is convenient for play fixed effect to two connection ports, utilizes the setting of two spacing subassemblies, and the phenomenon that positive negative pole was connected conversely takes place when being convenient for reduce DC power supply input and DC power supply and being connected to reduce the phenomenon and take place against the current.

2. The counter-current protection device of the frequency converter and the frequency converter are convenient to support the two sliding blocks through the arrangement of the two fixing boxes, when a user needs to connect the two connecting ports with the frequency converter body, a push plate can be pushed, then the two push rods can be driven, then the two sliding blocks can move, at the same time, the two moving blocks are extruded, the two hinge rods are used for ensuring the stability of the two moving blocks, then the two moving blocks can move to the front sides of the inner parts of the two special-shaped grooves, so that the stability is ensured, at the same time, the two sliding blocks can drive the two clamping pieces to move, so that the two connecting ports are connected with the frequency converter body, when the connection is needed to be disconnected, the user can push the push plate again, at the same time, the two moving blocks are extruded again, then the two moving blocks can move to the original positions along the two special-shaped grooves by utilizing the elastic force of the two springs, thereby disconnecting the two connection ports from the frequency converter body.

3. This protection device against current and converter of converter through the setting of two fixed blocks, is convenient for play the fixed action to four grip blocks, utilizes the setting of two grip blocks, is convenient for guarantee two connection port's stability, reduces two connection port and takes place to break away from the phenomenon when connecting, breaking off, when the user need be dismantled two connection port, can with two connection port along the top extract can.

4. This counter current protection device and converter of converter through the setting of two mounts, is convenient for play the supporting role to stopper and gag lever post, utilizes the setting in spacing groove and spacing hole, is convenient for be connected with stopper and gag lever post respectively to the messenger can effectually classify two connection port, thereby reduces the direct current power supply input and direct current power supply and is connected the phenomenon emergence that the positive negative pole was connected conversely when being connected.

5. The counter-current protection device of the frequency converter and the frequency converter are convenient for supporting the frequency converter body through the arrangement of the bottom plate.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view of A in FIG. 1;

fig. 3 is a schematic top view of the pushing assembly of the present invention.

The reference numbers in the figures illustrate:

1. a frequency converter body; 2. a pushing assembly; 201. a fixing box; 202. a push rod; 203. a slider; 204. a special-shaped groove; 205. a moving block; 206. a hinged lever; 207. a spring; 3. a clamping member; 301. a fixed block; 302. a clamping plate; 4. a connection port; 5. a limiting component; 501. a fixed mount; 502. a limiting block; 503. a limiting rod; 6. pushing the plate; 7. a limiting groove; 8. a limiting hole; 9. a base plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a counter-current protection device for a frequency converter comprises a frequency converter body 1, two pushing assemblies 2 are arranged on the front side of the frequency converter body 1, clamping members 3 are arranged on the tops of the two pushing assemblies 2, connecting ports 4 are arranged inside the two clamping members 3, a limiting assembly 5 is arranged on the front side of the frequency converter body 1, the two connecting ports 4 are conveniently driven to be connected with and disconnected from the frequency converter body 1 through the arrangement of the two pushing assemblies 2, the two connecting ports 4 are conveniently fixed by the arrangement of the two clamping members 3, and the arrangement of the two limiting assemblies 5 is convenient for reducing the occurrence of the phenomenon that the positive electrode and the negative electrode are reversely connected when a direct-current power supply input end is connected with the direct-current power supply, so that the counter-current phenomenon is reduced.

Further, the pushing assembly 2 includes two fixed boxes 201, two push rods 202, two sliding blocks 203, a special-shaped groove 204, two moving blocks 205, a hinge rod 206 and a spring 207, wherein the two fixed boxes 201 are fixedly connected to the front surface of the frequency converter body 1, the two sliding blocks 203 are respectively slidably connected to the insides of the two fixed boxes 201, the two push rods 202 are respectively fixedly connected to the front surfaces of the two sliding blocks 203, one ends of the front surfaces of the two push rods 202 are respectively penetrated through and slidably connected to the front surfaces of the two fixed boxes 201, the two special-shaped grooves 204 are respectively opened to the insides of the two sliding blocks 203, the two moving blocks 205 are respectively slidably connected to the insides of the two special-shaped grooves 204, the bottoms of the two moving blocks 205 are respectively hinged to the two hinge rods 206, one ends of the back surfaces of the two hinge rods 206 are respectively hinged to the insides of the two fixed boxes 201, the two springs 207 are respectively fixedly connected to the back surfaces of the two sliding blocks 203, one ends of the back surfaces of the two springs 207 are respectively fixedly connected to the insides of the two fixed boxes 201, the push plate 6 which is integrally formed is fixedly connected to one end of the front faces of the two push rods 202, the two push rods 202 are convenient to support the two sliding blocks 203 through the arrangement of the two fixing boxes 201, when a user needs to connect the two connecting ports 4 with the frequency converter body 1, the push plate 6 can be pushed, then the two push rods 202 are driven, then the two sliding blocks 203 both move, at the moment, the two moving blocks 205 are extruded, the two hinge rods 206 are used for ensuring the stability of the two moving blocks 205, then the two moving blocks 205 move to the front faces inside the two special-shaped grooves 204, so that the stability is ensured, at the moment, the two sliding blocks 203 drive the two clamping pieces 3 to move, so that the two connecting ports 4 are connected with the frequency converter body 1, when the connection is needed to be disconnected, the user can push the push plate 6 again, at the moment, the two moving blocks 205 are extruded again, and then the elastic force of the two springs 207 is used for influence, so that the two moving blocks 205 move to the original positions along the two profiled grooves 204, thereby disconnecting the two connection ports 4 from the frequency converter body 1.

Further, holder 3 includes two fixed blocks 301 and two grip blocks 302, the inside of two fixed boxes 201 is run through respectively and sliding connection is to the bottom of two fixed blocks 301, two fixed blocks 301 are fixed connection to the top of two sliding blocks 203 respectively, four grip blocks 302 are fixed connection to the left and right sides of two fixed blocks 301 respectively, two connection port 4 are sliding connection to the relative one side of two adjacent grip blocks 302 respectively, setting through two fixed blocks 301, be convenient for play the fixed action to four grip blocks 302, utilize the setting of two grip blocks 302, be convenient for guarantee two connection port 4's stability, it connects to reduce two connection port 4, take place the separation phenomenon when the disconnection, when the user needs to dismantle two connection port 4, can with two connection port 4 along the top extract can.

Further, the limiting component 5 comprises two fixing frames 501, a limiting block 502 and a limiting rod 503, the two fixing frames 501 are respectively fixedly connected to the tops of the two connecting ports 4, the limiting block 502 and the limiting rod 503 are respectively fixedly connected to the back faces of the two fixing frames 501, a limiting groove 7 and a limiting hole 8 are respectively formed in the front face of the frequency converter body 1, the two fixing frames 501 are arranged, the limiting block 502 and the limiting rod 503 are conveniently supported, the limiting groove 7 and the limiting hole 8 are conveniently arranged, the limiting block 502 and the limiting rod 503 are respectively conveniently connected, and therefore the two connecting ports 4 can be effectively classified, and the phenomenon that the positive pole and the negative pole are connected reversely when the direct-current power supply input end is connected with the direct-current power supply is reduced.

A frequency converter comprises the frequency converter reverse current protection device and further comprises a bottom plate 9, wherein the frequency converter body 1 is fixedly mounted on the top of the bottom plate 9, and the frequency converter body 1 is convenient to support through the arrangement of the bottom plate 9.

The working principle is as follows: through the arrangement of the bottom plate 9, the frequency converter body 1 is convenient to be supported, through the arrangement of the two pushing components 2, the two connecting ports 4 are convenient to be driven to be connected with and disconnected from the frequency converter body 1, through the arrangement of the two fixing boxes 201, the two sliding blocks 203 are convenient to be supported, when a user needs to connect the two connecting ports 4 with the frequency converter body 1, the pushing plate 6 can be pushed, then the two push rods 202 are driven, then the two sliding blocks 203 both move, at the moment, the two moving blocks 205 are extruded, the stability of the two moving blocks 205 is ensured by using the two hinge rods 206, then the two sliding blocks 205 move to the front sides inside the two special-shaped grooves 204, so as to ensure the stability, at the moment, the two sliding blocks 203 drive the two clamping pieces 3 to move, thereby the two connecting ports 4 are connected with the frequency converter body 1, when the disconnection is needed, the user can push the push plate 6 again, at the moment, the two moving blocks 205 are extruded again, then, the elastic force influence of the two springs 207 is utilized, so that the two moving blocks 205 move to the original positions along the two special-shaped grooves 204, so that the two connecting ports 4 are disconnected from the frequency converter body 1, the two clamping pieces 3 are utilized to conveniently fix the two connecting ports 4, the four clamping plates 302 are conveniently fixed by the arrangement of the two fixing blocks 301, the stability of the two connecting ports 4 is conveniently ensured by the arrangement of the two clamping plates 302, the separation phenomenon of the two connecting ports 4 during connection and disconnection is reduced, when the user needs to disassemble the two connecting ports 4, the two connecting ports 4 can be pulled out along the upper part, the arrangement of the two limiting assemblies 5 is utilized, the arrangement of the two fixing frames 501 is utilized to conveniently support the limiting blocks 502 and the limiting rods 503, the arrangement of the limiting groove 7 and the limiting hole 8 is convenient for being respectively connected with the limiting block 502 and the limiting rod 503, so that two connecting ports 4 can be effectively classified, the phenomenon that the positive pole and the negative pole are connected reversely when the direct-current power supply input end is connected with a direct-current power supply is reduced, the phenomenon that the positive pole and the negative pole are connected reversely when the direct-current power supply input end is connected with the direct-current power supply can be reduced, the reverse flow phenomenon of the frequency converter body 1 is reduced, and the internal elements of the frequency converter body 1 are protected.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a protection device against current of converter, includes converter body (1), its characterized in that: the front of converter body (1) is provided with two promotion subassemblies (2), two the top of promotion subassembly (2) all is provided with holder (3), two the inside of holder (3) all is provided with connection port (4), the front of converter body (1) is provided with spacing subassembly (5).

2. The reverse current protection device of a frequency converter according to claim 1, wherein: the pushing assembly (2) comprises fixed boxes (201), push rods (202), sliding blocks (203), special-shaped grooves (204), moving blocks (205), hinge rods (206) and springs (207), wherein the two fixed boxes (201) are fixedly connected to the front face of the frequency converter body (1), the two sliding blocks (203) are respectively and slidably connected to the insides of the two fixed boxes (201), the two push rods (202) are respectively and fixedly connected to the front faces of the two sliding blocks (203), one ends of the front faces of the two push rods (202) are respectively penetrated through and slidably connected to the front faces of the two fixed boxes (201), the two special-shaped grooves (204) are respectively arranged inside the two sliding blocks (203), the two moving blocks (205) are respectively and slidably connected to the insides of the two special-shaped grooves (204), and the bottoms of the two moving blocks (205) are respectively and hingedly connected with the two hinge rods (206), two the inside of articulated rod (206) back one end articulates respectively to two fixed boxes (201), two spring (207) fixed connection respectively is to the back of two sliding blocks (203), two the inside of two fixed boxes (201) is fixed connection respectively to the one end at the back of spring (207), two the positive one end fixedly connected with integrated into one piece's push pedal (6) of push rod (202).

3. The reverse current protection device of a frequency converter according to claim 2, wherein: the clamping piece (3) comprises two fixing blocks (301) and two clamping plates (302), two the bottoms of the fixing blocks (301) are respectively penetrated through and slidably connected to the insides of the two fixing boxes (201), two the fixing blocks (301) are respectively fixedly connected to the tops of the two sliding blocks (203), four the clamping plates (302) are respectively fixedly connected to the left side and the right side of the two fixing blocks (301), two the connecting ports (4) are respectively slidably connected to one side of the two adjacent clamping plates (302) which are opposite.

4. The reverse current protection device of a frequency converter according to claim 1, wherein: the limiting assembly (5) comprises two fixing frames (501), limiting blocks (502) and limiting rods (503), the fixing frames (501) are fixedly connected to the tops of the two connecting ports (4) respectively, the limiting blocks (502) and the limiting rods (503) are fixedly connected to the back faces of the two fixing frames (501) respectively, and limiting grooves (7) and limiting holes (8) are formed in the front face of the frequency converter body (1) respectively.

5. A frequency converter, characterized by: reverse current protection device comprising a frequency converter according to any of claims 1-4, further comprising a bottom plate (9), the frequency converter body (1) being fixedly mounted to the top of the bottom plate (9).