CN209860778U

CN209860778U - Modularized universal frequency converter

Info

Publication number: CN209860778U
Application number: CN201920676091.9U
Authority: CN
Inventors: 贾飞
Original assignee: Shenzhen Weikong Electric Co Ltd
Current assignee: Shenzhen Weikong Electric Co Ltd
Priority date: 2019-05-13
Filing date: 2019-05-13
Publication date: 2019-12-27
Anticipated expiration: 2029-05-13

Abstract

The utility model discloses a general converter of modularization, concretely relates to converter technical field, which comprises a housin, the rear of casing is matchd and is installed the back shroud, the heat dissipation recess has been seted up to the one end of casing, the one end of casing corresponds the inside embedding of heat dissipation recess and installs dustproof mechanism, and the one end of casing is close to the embedding of heat dissipation recess rear and is provided with locking mechanical system, five first locating holes of group have all been seted up to both sides about the casing, five second locating holes of group have all been seted up to both sides about the back shroud. The utility model discloses in through having set up locking mechanical system, the threaded rod rotates and drives the locating lever alright realize quick installation and dismantlement, does not need any instrument help during, has made things convenient for the staff to dismantle the maintenance to the converter, has reduced the intensity of labour when the converter is installed greatly, has improved work efficiency, convenient operation, practicality are strong.

Description

Modularized universal frequency converter

Technical Field

The utility model relates to a converter technical field, more specifically say, the utility model relates to a general converter of modularization.

Background

The self-turn-off and modularization of power electronic devices, the high frequency of a switching mode of a current transformation circuit and the full digitalization of a control means promote the miniaturization, the multiple functions and the high performance of a variable frequency power supply device, particularly the full digitalization of the control means, the huge information processing capability of a microcomputer is utilized, the software function is continuously strengthened, the flexibility and the adaptability of the variable frequency power supply device are continuously strengthened, the current frequency converter with medium and small capacity and general purposes is realized in a universal way, and a Sinusoidal Pulse Width Modulation (SPWM) frequency converter which adopts high-power self-turn-off switching devices (GTO, BJT and IGBT) as main switching devices becomes the mainstream of the universal frequency converter.

Through retrieval, the chinese utility model discloses a universal modular frequency converter (with an authorization publication number of CN 202872649U), comprising a first power module, a second power module, a first radiator and a second radiator; wherein the back of the first power module is attached to the bottom plate of the first heat sink and the back of the second power module is attached to the bottom plate of the second heat sink; the first radiator and the second radiator are fixed on a frame of the frequency converter in a mode of opposite fins. The utility model discloses a first power module and second power module through setting up back to back have both taken into account power module's radiating effect, have reduced the width of converter again, have improved the power density of product.

However, in actual use, there still exist many disadvantages, for example, all use the locking bolt to assemble on the general-purpose frequency converter, once the inside breaks down and needs to be maintained, the numerous locking bolts will increase the disassembling workload for the working personnel, and reduce the maintenance efficiency.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a general converter of modularization, through having set up locking mechanical system, the rotation threaded rod drives the locating lever alright realize quick installation and dismantlement, does not need any instrument help during, has made things convenient for the staff to dismantle the maintenance to the converter, intensity of labour when having reduced the converter installation greatly has improved work efficiency, and convenient operation, practicality are strong to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a modularized universal frequency converter comprises a shell, wherein a rear cover plate is installed at the rear of the shell in a matched mode, a heat dissipation groove is formed in one end of the shell, a dustproof mechanism is embedded in the heat dissipation groove corresponding to one end of the shell, a locking mechanism is embedded in one end of the shell close to the rear of the heat dissipation groove, five groups of first positioning holes are formed in the upper side and the lower side of the shell, and five groups of second positioning holes are formed in the upper side and the lower side of the rear cover plate;

the locking mechanism comprises a threaded rod, a movable seat is sleeved outside the threaded rod, and movable rods are hinged to the upper side and the lower side of the movable seat.

In a preferred embodiment, the locking mechanism further includes a fixed rod, one end of the fixed rod is fixedly provided with a limiting block, a sliding ring is slidably mounted outside the fixed rod, one side of the sliding ring is fixedly provided with a positioning rod, the other side of the sliding ring is hinged to one end of a movable rod, and the fixed rod is arranged on the inner side wall of the rear cover plate.

In a preferred embodiment, the dust-proof mechanism comprises a magnet strip, and a dust-filter net is mounted inside the magnet strip.

In a preferred embodiment, the inside of sliding seat is provided with the internal thread, the threaded rod passes through the screw thread with the sliding seat and is connected with the rotation, the one end of threaded rod is connected with the back shroud inner wall through the bearing, and the other end parcel of threaded rod has anti-skidding cover.

In a preferred embodiment, the positioning rod is designed in an L-shaped structure, and the positioning rod is matched with the first positioning hole and the second positioning hole.

In a preferred embodiment, an armature block is mounted on one side of the magnet strip, the magnet strip is connected with the armature block in a magnetic adsorption mode, and the armature block is arranged inside the heat dissipation groove.

The utility model discloses a technological effect and advantage:

1. the utility model discloses in through having set up locking mechanical system, rotate the threaded rod and drive the locating lever alright realize quick installation and dismantlement, do not need any instrument help during, made things convenient for the staff to dismantle the maintenance to the converter, reduced the intensity of labour when the converter is installed greatly, improved work efficiency, convenient operation, practicality are strong;

2. the utility model discloses in through having set up dustproof mechanism, can be quick dismantle the dirt filtrating screen, facilitated the staff to clear up the maintenance to the dirt filtrating screen, avoided the dirt filtrating screen to suffer the dust jam and influence the heat dissipation, guaranteed the good radiating effect of general converter.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural diagram of the middle dust-proof mechanism of the present invention.

Fig. 3 is a schematic structural diagram of the middle housing, the rear cover plate and the locking mechanism of the present invention.

Fig. 4 is an enlarged schematic structural view of a portion a in fig. 3 according to the present invention.

Fig. 5 is an enlarged schematic structural view of a portion B in fig. 3 according to the present invention.

The reference signs are: the device comprises a shell 1, a rear cover plate 2, a heat dissipation groove 3, a dustproof mechanism 4, a locking mechanism 5, a first positioning hole 6, a second positioning hole 7, a magnet strip 8, a dust filtering net 9, a threaded rod 10, a movable seat 11, a movable rod 12, a fixed rod 13, a limited block 14, a sliding ring 15 and a positioning rod 16.

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.

The modularized universal frequency converter shown in the attached drawings 1, 3, 4 and 5 comprises a shell 1, wherein a rear cover plate 2 is installed behind the shell 1 in a matching manner, a heat dissipation groove 3 is formed in one end of the shell 1, a dustproof mechanism 4 is embedded into one end of the shell 1 corresponding to the heat dissipation groove 3, a locking mechanism 5 is embedded into one end of the shell 1 close to the rear of the heat dissipation groove 3, five groups of first positioning holes 6 are formed in the upper side and the lower side of the shell 1, and five groups of second positioning holes 7 are formed in the upper side and the lower side of the rear cover plate 2;

the locking mechanism 5 comprises a threaded rod 10, a movable seat 11 is sleeved outside the threaded rod 10, and movable rods 12 are hinged to the upper side and the lower side of the movable seat 11;

the locking mechanism 5 further comprises a fixed rod 13, a limiting block 14 is fixedly installed at one end of the fixed rod 13, a sliding ring 15 is slidably installed outside the fixed rod 13, a positioning rod 16 is fixedly installed at one side of the sliding ring 15, the other side of the sliding ring 15 is hinged to one end of the movable rod 12, and the fixed rod 13 is arranged on the inner side wall of the rear cover plate 2;

an internal thread is arranged inside the movable seat 11, the threaded rod 10 is rotatably connected with the movable seat 11 through the thread, one end of the threaded rod 10 is connected with the inner wall of the rear cover plate 2 through a bearing, and the other end of the threaded rod 10 is wrapped with an anti-slip sleeve;

the positioning rod 16 is designed in an L-shaped structural formula, and the positioning rod 16 is matched with the first positioning hole 6 and the second positioning hole 7.

The implementation mode is specifically as follows: the working personnel holds one end of the threaded rod 10 to rotate, the threaded rod 10 drives the movable seat 11 to move towards the hand of the working personnel while rotating, the movable seat 11 and the movable rod 12 are hinged together, the movable rod 12 and the sliding ring 15 are hinged together, wherein the movable seat 11 drives the sliding ring 15 to slide on the fixed rod 13 by giving a side pull force to the movable rod 12, so that the positioning rod 16 on the sliding ring 15 is separated from the first positioning hole 6 and the second positioning hole 7 in sequence, the disassembly of the shell 1 and the rear cover plate 2 can be completed, when the movable seat and the sliding ring are required to be assembled, the working personnel aligns the rear cover plate 2 at the rear part of the shell 1, the end with the threaded rod 10 is firstly butted onto the shell 1, then the working personnel holds the threaded rod 10 to rotate reversely, the movable seat 11 on the threaded rod 10 is far away from the hand of the working personnel, and gives a push force to the movable, thereby drive sliding ring 15 and slide on dead lever 13, make locating lever 16 pass second locating hole 7 and first locating hole 6 in proper order, can be in the same place casing 1 and back shroud 2 equipment, such design, rotation threaded rod 10 drives locating lever 16 alright realize quick installation and dismantlement, do not need any instrument help during, made things convenient for the staff to dismantle the maintenance to the converter, intensity of labour when having reduced the converter installation greatly, and the work efficiency is improved, and convenient for operation, therefore, the clothes hanger is strong in practicability.

The modularized general frequency converter shown in the attached drawings 1 and 2 further comprises a dustproof mechanism 4, wherein the dustproof mechanism 4 is arranged on one side of the shell 1, the dustproof mechanism 4 comprises a magnet strip 8, and a dust filter net 9 is arranged inside the magnet strip 8;

an armature block is installed on one side of the magnet strip 8, the magnet strip 8 is connected with the armature block in a magnetic adsorption mode, and the armature block is arranged on the inner side of the heat dissipation groove 3.

The implementation mode is specifically as follows: the staff aims at dustproof mechanism 4 heat dissipation recess 3 on the casing 1, the outside magnet strip 8 of dirt filter screen 9 will be inhaled with the armature piece and attach together mutually, the heat of 1 inside production of casing will pass heat dissipation recess 3 and dirt filter screen 9 in proper order, to the outside diffusion, reach effective radiating purpose, the staff separates magnet strip 8 and armature piece, can dismantle dirt filter screen 9 and wash the maintenance, such design, can be quick dismantle dirt filter screen 9, the staff has been facilitated and has been cleared up the maintenance to dirt filter screen 9, dirt filter screen 9 has been avoided suffering the dust jam and influence the heat dissipation, the good radiating effect of general converter has been guaranteed.

The utility model discloses the theory of operation:

referring to the attached drawings 1, 3, 4 and 5 in the specification, by arranging the locking mechanism 5, the threaded rod 10 is rotated to drive the positioning rod 16, so that quick installation and disassembly can be realized, no tool is needed during the process, a worker can conveniently disassemble and maintain the frequency converter, the labor intensity during installation of the frequency converter is greatly reduced, the working efficiency is improved, and the locking mechanism is convenient to operate and high in practicability;

referring to the attached drawings 1 and 2 of the specification, the dust filtering net 9 can be quickly detached by the aid of the dustproof mechanism 4, workers can conveniently clean and maintain the dust filtering net 9, the dust filtering net 9 is prevented from being blocked by dust to affect heat dissipation, and good heat dissipation effect of the universal frequency converter is guaranteed.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A modular universal frequency converter comprising a housing (1), characterized in that: a rear cover plate (2) is installed at the rear of the shell (1) in a matched mode, a heat dissipation groove (3) is formed in one end of the shell (1), a dustproof mechanism (4) is installed in the heat dissipation groove (3) in an embedded mode in one end of the shell (1), a locking mechanism (5) is arranged at the rear portion, close to the heat dissipation groove (3), of one end of the shell (1) in an embedded mode, five groups of first positioning holes (6) are formed in the upper side and the lower side of the shell (1), and five groups of second positioning holes (7) are formed in the upper side and the lower side of the rear cover plate (;

locking mechanical system (5) are including threaded rod (10), sliding seat (11) have been cup jointed to the outside of threaded rod (10), the upper and lower both sides of sliding seat (11) all articulate there is movable rod (12).

2. A modular universal frequency converter according to claim 1, characterized in that: the locking mechanism (5) further comprises a fixing rod (13), a limiting block (14) is fixedly mounted at one end of the fixing rod (13), a sliding ring (15) is slidably mounted outside the fixing rod (13), a positioning rod (16) is fixedly arranged on one side of the sliding ring (15), the other side of the sliding ring (15) is hinged to one end of a movable rod (12), and the fixing rod (13) is arranged on the inner side wall of the rear cover plate (2).

3. A modular universal frequency converter according to claim 1, characterized in that: dustproof mechanism (4) are including magnet strip (8), the internally mounted of magnet strip (8) has dust screen (9).

4. A modular universal frequency converter according to claim 1, characterized in that: the inside of sliding seat (11) is provided with the internal thread, threaded rod (10) are connected through the screw rotation with sliding seat (11), the one end of threaded rod (10) is connected with back shroud (2) inner wall through the bearing, and the other end parcel of threaded rod (10) has the antiskid cover.

5. A modular universal frequency converter according to claim 2, characterized in that: the positioning rod (16) is designed in an L-shaped structural formula, and the positioning rod (16) is matched with the first positioning hole (6) and the second positioning hole (7).

6. A modular universal frequency converter according to claim 3, characterized in that: magnet strip (8) one side is installed the armature piece, magnet strip (8) are connected through magnetic force adsorption's mode with the armature piece, heat dissipation recess (3) inboard is arranged in to the armature piece.