CN221042650U

CN221042650U - Frequency converter

Info

Publication number: CN221042650U
Application number: CN202323076313.9U
Authority: CN
Inventors: 龚建锋; 汪建龙; 厉斌斌; 李岑杰
Original assignee: Hangzhou Lechuan Technology Co ltd
Current assignee: Hangzhou Lechuan Technology Co ltd
Priority date: 2023-11-15
Filing date: 2023-11-15
Publication date: 2024-05-28
Anticipated expiration: 2033-11-15

Abstract

The application belongs to the technical field of frequency converters, and particularly relates to a frequency converter, which comprises: the box body is internally provided with a heat dissipation cavity, and one side of the heat dissipation cavity is provided with an opening; the filter screen is arranged on the opening; a mounting base plate; the radiator is arranged on the mounting bottom plate; the mounting mechanism comprises an outer positioning piece arranged on a mounting bottom plate, an inner positioning piece arranged on a box body and a fastener for connecting the outer positioning piece and the inner positioning piece, and has the beneficial effects that: through set up the opening on the heat dissipation chamber to set up the filter screen panel in the opening part, the filter screen panel can provide certain filter effect, and the radiator then improves holistic radiating effect, and installation mechanism includes outer setting element, interior setting element and fastener, can be convenient for fix through the cooperation of three, can not cause the damage to box and mounting plate when still convenient to detach and dismantlement.

Description

Frequency converter

Technical Field

The application belongs to the technical field of frequency converters, and particularly relates to a frequency converter.

Background

A Variable-frequency Drive (VFD) is a power control device that applies a frequency conversion technique and a microelectronics technique to control an ac motor by changing a frequency of a motor operating power supply.

The frequency converter mainly comprises a rectifying unit (alternating current to direct current), a filtering unit, an inverting unit (direct current to alternating current), a braking unit, a driving unit, a detecting unit, a micro-processing unit, a radiating unit and the like. The frequency converter is used for adjusting the voltage and frequency of the output power supply by switching on and off the internal IGBT, and providing the required power supply voltage according to the actual requirement of the motor, so as to achieve the purposes of energy saving and speed regulation. Along with the continuous improvement of the industrial automation degree, the frequency converter is also widely applied.

In the prior art, the radiator outside fin of converter is thicker, need fix the radiator on the baffle in quick-witted case to fix the radiator on the end apron through the screw, and install and need have specific location frock, for example the patent of publication number CN216599393U, it discloses a converter, and this converter includes box, two at least locating racks and radiator, two at least locating racks interval locate the box in relative both sides, and the radiator corresponds the locating rack and has two at least spacing portions, locating rack and spacing portion movable joint.

Above-mentioned patent need not to use location frock at the installation, adopts locating rack spacing and location radiator, makes the converter installation, and is fixed quick-witted case and bottom board through the cooperation between bolt, mounting hole, the fixed orifices when fixed at last, and although can accomplish the installation, the fixed of screw thread has some problems, and the radiator needs periodic cleaning, consequently quick-witted case needs to decide western dismantlement, dismantles to a certain extent can lead to the screw thread impaired in case use for a long time, and the screw thread of no matter mounting hole or fixed orifices is impaired, all sleeps and leads to subsequent installation to appear the problem, influences the use.

Disclosure of utility model

The application aims to provide a frequency converter which can solve the problems.

The object of the application is to provide a frequency converter comprising:

The box body is internally provided with a heat dissipation cavity, and one side of the heat dissipation cavity is provided with an opening;

the filter screen is arranged on the opening;

A mounting base plate;

The radiator is arranged on the mounting bottom plate;

the mounting mechanism comprises an outer positioning piece arranged on the mounting bottom plate, an inner positioning piece arranged on the box body and a fastener for connecting the outer positioning piece and the inner positioning piece.

Adopt foretell a converter, be detachable connection between box and the mounting plate, fix together through installation mechanism between the two, wherein, be provided with the heat dissipation chamber in the box, the heat dissipation chamber is located the installation of radiator and provides the space, through set up the opening on the heat dissipation chamber, and set up the filter screen cover in the opening part, the filter screen cover can provide certain filter effect, the radiator then improves holistic radiating effect, and installation mechanism includes outer setting element, interior setting element and fastener, can be convenient for fix through the cooperation of three, can not cause the damage to box and mounting plate when still convenient to detach and dismantlement.

And be provided with fixed external hole on the filter screen cover, be provided with the mounting panel on mounting plate, then be provided with the fixed hole with fixed external hole adaptation on the mounting panel, both are fixed through bolt, nut.

Further, the outer positioning piece comprises a vertical plate and an outer positioning hole arranged on the vertical plate;

the positioning piece comprises an inner positioning hole, a positioning plate and a threaded hole arranged on the positioning plate;

The fastener sequentially passes through the outer positioning hole and the inner positioning hole and then is connected with the threaded hole.

The riser sets up perpendicularly on mounting plate, and the outer locating hole on the riser is provided with a plurality of, and interior locating hole sets up on the box, and the quantity of interior locating hole is the same with outer locating hole, and the locating plate also is provided with a plurality of, and the quantity of locating plate is the same with outer locating hole, passes outer locating hole in proper order through the fastener, be connected with the screw hole after interior locating hole, just can be fixed box and mounting plate together, and there is the screw thread just can not be contacted, guarantees promptly not to have the screw thread impaired, and the locating plate that has the screw thread then can be changed at any time, and replacement cost is lower, has economic practicality.

In addition, still be provided with on mounting plate and prevent slow-witted structure, be provided with the arch on the both sides stack of mounting plate, be provided with the protruding pole of position dislocation on two archs respectively, then be provided with the recess with protruding pole adaptation on the radiator, through the setting of dislocation, can avoid the mistake to improve installation effectiveness.

Further: the fastener includes:

The mounting groove is arranged on the vertical plate;

The limiting piece is arranged on the mounting groove and is provided with a limiting through hole communicated with the outer positioning hole;

The inner diameter of the limiting through hole is smaller than that of the outer positioning hole and larger than that of the fastening piece.

Through the setting of mounting groove and locating part, can play the limiting displacement, through setting up spacing through-hole on the locating part, then can avoid rocking of fastener, the internal diameter of spacing through-hole slightly is greater than the diameter of fastener, in the application, be detachable connection between mounting groove and the locating part, can be plug connection also can pass through threaded connection.

Further, one side of the box body, which is close to the positioning plate, is provided with an annular groove, a gasket is arranged in the annular groove, the gasket comprises a ring body and an extension part arranged in the ring body, the extension part extends towards the center of the ring body, and the extension part is in threaded contact with the fastener.

The washer is arranged to provide a stopping effect for the fastener, so that the fastener is prevented from moving up and down, the extension part is in threaded contact with the fastener, the movement is prevented, the integral installation firmness is improved, and the fastener is prevented from loosening due to the influence of external force.

Further, six extending parts are arranged, and the extending parts tilt towards the center direction of the ring body.

The number of the extension parts can be set to be other, but at least 5, the extension parts are set to tilt towards the center direction of the ring body, so that the extension parts are more easily abutted with the threads, the extension parts are made of elastic materials, and the extension parts have certain deformation capacity, so that the extension parts are convenient to install and detach.

Further, the fastener is provided with a fixed ring, the inner positioning hole is provided with a limiting ring, an elastic piece is arranged between the fixed ring and the limiting ring, and the elastic piece is sleeved on the fastener.

The fixed ring and the limiting ring are mainly used for limiting the elastic piece, the elastic piece is extruded through the fixed ring and the limiting ring when the fastening piece is installed, so that the fastening effect of the fastening piece is better, the elastic piece is reset and provides elasticity for the fixed ring far away from the limiting ring when the fastening piece is detached through the gradual distance between the fixed ring and the limiting ring, and the detachment efficiency of a user to the box body and the installation bottom plate is improved.

The beneficial effects of the application are as follows:

1. Through setting up the opening on the heat dissipation chamber to set up the filter screen panel in the opening part, the filter screen panel can provide certain filter effect, and the radiator then improves holistic radiating effect, and installation mechanism includes outer setting element, interior setting element and fastener, can be convenient for fix through the cooperation of three, can not cause the damage to box and mounting plate when still convenient to detach and dismantlement;

2. The box body and the mounting bottom plate can be fixed together through the fasteners sequentially penetrating through the outer positioning holes and the inner positioning holes and then being connected with the threaded holes, and the box body and the mounting bottom plate can not be contacted without threads, namely, the damage of the threads is avoided, and the positioning plate with the threads can be replaced at any time, so that the replacement cost is lower, and the box body and the mounting bottom plate are economical and practical;

3. the washer is arranged to provide a stopping effect for the fastener, so that the fastener is prevented from moving up and down, the extension part is in threaded contact with the fastener, the movement is prevented, the integral installation firmness is improved, and the fastener is prevented from loosening due to the influence of external force.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an exploded view of the present utility model;

FIG. 3 is a schematic view of the structure of the mounting mechanism of the present utility model;

fig. 4 is a schematic structural view of the gasket of the present utility model.

The reference numerals in the drawings are: 100. a case; 110. an opening; 200. filtering the net cover; 300. a mounting base plate; 400. a heat sink; 500. an outer positioning member; 510. a vertical plate; 520. an outer locating hole; 600. an inner positioning member; 610. an inner positioning hole; 620. a positioning plate; 630. a threaded hole; 700. a fastener; 710. a mounting groove; 720. a limiting piece; 721. limiting through holes; 800. an annular groove; 810. a gasket; 811. a ring body; 812. an extension; 900. a fixing ring; 910. a limiting ring; 920. an elastic member.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are obtained by a person skilled in the art based on the embodiments of the present application, fall within the scope of protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The frequency converter provided by the embodiment of the application is described in detail through specific embodiments and application scenes thereof with reference to the accompanying drawings.

Example 1:

As shown in fig. 1 to 4, an embodiment of the present application provides a frequency converter, including:

the box 100 is internally provided with a heat dissipation cavity, and one side of the heat dissipation cavity is provided with an opening 110;

a filter screen 200 disposed on the opening 110;

A mounting base plate 300;

A heat sink 400 disposed on the mounting base 300;

The mounting mechanism comprises an outer positioning piece 500 arranged on the mounting bottom plate 300, an inner positioning piece 600 arranged on the box body 100 and a fastener 700 for connecting the outer positioning piece 500 and the inner positioning piece 600.

In some embodiments of the present application, as shown in fig. 1, with the above-mentioned frequency converter, the case 100 and the mounting base 300 are detachably connected, and are fixed together by a mounting mechanism, where a heat dissipation cavity is provided in the case 100, the heat dissipation cavity is located in a space provided for mounting the heat sink 400, and by providing an opening 110 on the heat dissipation cavity and providing a filter screen 200 at the opening 110, the filter screen 200 can provide a certain filtering effect, the heat sink 400 improves the overall heat dissipation effect, and the mounting mechanism includes an outer positioning member 500, an inner positioning member 600 and a fastening member 700, which are convenient to fix by cooperation of the three, and also is convenient to detach and does not damage the case 100 and the mounting base 300 during detachment.

And the filter screen 200 is provided with a fixed outer hole, the mounting plate 300 is provided with a mounting plate, and the mounting plate is provided with a fixed inner hole matched with the fixed outer hole, and the fixed inner hole are fixed through bolts and nuts.

Example 2:

The embodiment of the application provides a frequency converter, which comprises the technical characteristics as well as the following technical characteristics.

As shown in fig. 2, the outer positioning member 500 includes a vertical plate 510 and an outer positioning hole 520 provided on the vertical plate 510;

the inner positioning member 600 includes an inner positioning hole 610, a positioning plate 620, and a threaded hole 630 provided on the positioning plate 620;

wherein the fastener 700 is connected with the screw hole 630 after passing through the outer positioning hole 520 and the inner positioning hole 610 in sequence.

In the embodiment of the application, the vertical plate 510 is vertically arranged on the mounting base plate 300, the plurality of outer positioning holes 520 are arranged on the vertical plate 510, the plurality of inner positioning holes 610 are arranged on the box body 100, the number of the inner positioning holes 610 is the same as that of the outer positioning holes 520, the plurality of the positioning plates 620 are also arranged, the number of the positioning plates 620 is the same as that of the outer positioning holes 520, and the box body 100 and the mounting base plate 300 can be fixed together by sequentially penetrating the outer positioning holes 520 and the inner positioning holes 610 through the fasteners 700 and then connecting the fasteners with the threaded holes 630.

In addition, still be provided with on mounting plate 300 and prevent slow-witted structure, be provided with the arch on the both sides stack of mounting plate 300, be provided with the protruding pole of position dislocation on two archs respectively, then be provided with the recess with protruding pole adaptation on radiator 400, through the setting of dislocation, can avoid the mistake to improve installation effectiveness.

Example 3:

As shown in fig. 3, the fastener 700 includes:

a mounting groove 710 provided on the vertical plate 510;

the limiting piece 720 is arranged on the mounting groove 710, and a limiting through hole 721 communicated with the outer positioning hole 520 is arranged on the limiting piece 720;

Wherein the inner diameter of the limiting through hole 721 is smaller than the inner diameter of the outer positioning hole 520 and larger than the diameter of the fastener 700.

In the embodiment of the application, the installation groove 710 and the limiting piece 720 are arranged to play a limiting role, the limiting piece 720 is provided with the limiting through hole 721, so that the shaking of the fastener 700 can be avoided, the inner diameter of the limiting through hole 721 is slightly larger than the diameter of the fastener 700, in the application, the installation groove 710 and the limiting piece 720 are detachably connected, can be connected through inserting or screwing, can not be contacted without screw threads, namely, the screw threads are not damaged, the positioning plate 520 with screw threads can be replaced at any time, the replacement cost is lower, and the application has economical practicability.

Example 4:

As shown in fig. 3 and 4, a side of case 100 near positioning plate 620 is provided with annular groove 800, a washer 810 is provided in annular groove 800, washer 810 includes ring 811 and extension 812 provided in ring 811, extension 812 extends toward the center of ring 811, and extension 812 is in threaded contact with fastener 700.

In the embodiment of the application, the washer 810 can provide a stopping effect for the fastener 700, so that the fastener 700 is prevented from moving up and down, and the extension 812 is in contact with the threads of the fastener 700, so that the movement is prevented, the integral installation firmness is improved, and the fastener 700 is prevented from loosening due to the influence of external force.

Further, six extending portions 812 are provided, and the extending portions 812 are tilted toward the center of the ring 811.

In some embodiments of the present application, six extending portions 812 are provided, and the extending portions 812 are tilted toward the center of the ring 811.

Example 5:

As shown in fig. 3, a fixing ring 900 is provided on the fastener 700, a limiting ring 910 is provided on the positioning hole 610, an elastic member 920 is provided between the fixing ring 900 and the limiting ring 910, and the elastic member 920 is sleeved on the fastener 700.

In the embodiment of the application, the fixing ring 900 and the limiting ring 910 are mainly used for limiting the elastic member 920, and the elastic member 920 is extruded by the fixing ring 900 and the limiting ring 910 when the fastening member 700 is installed, so that the fastening effect of the fastening member 700 is better, and when the fastening member 700 is disassembled, the elastic member 920 is reset and provides elastic force for the fixing ring 900 far from the limiting ring 910 by gradually keeping away from the fixing ring 900 and the limiting ring 910, so that the disassembly efficiency of a user on the box body 100 and the installation bottom plate 300 is improved.

It should be noted that, in this document, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. A frequency converter, characterized in that: comprising the following steps:

a box body (100) is internally provided with a heat dissipation cavity, and one side of the heat dissipation cavity is provided with an opening (110);

a filter screen (200) disposed on the opening (110);

A mounting base plate (300);

a radiator (400) provided on the mounting base plate (300);

The mounting mechanism further comprises an outer positioning piece (500) arranged on the mounting bottom plate (300), an inner positioning piece (600) arranged on the box body (100) and a fastening piece (700) for connecting the outer positioning piece (500) and the inner positioning piece (600).

2. A transducer according to claim 1, wherein:

The outer positioning piece (500) comprises a vertical plate (510) and an outer positioning hole (520) arranged on the vertical plate (510);

The positioning piece (600) comprises an inner positioning hole (610), a positioning plate (620) and a threaded hole (630) arranged on the positioning plate (620);

The fastener (700) sequentially passes through the outer positioning hole (520) and the inner positioning hole (610) and then is connected with the threaded hole (630).

3. A transducer according to claim 2, wherein: the fastener (700) includes:

a mounting groove (710) provided on the vertical plate (510);

The limiting piece (720) is arranged on the mounting groove (710), and a limiting through hole (721) communicated with the outer positioning hole (520) is formed in the limiting piece (720);

Wherein the inner diameter of the limit through hole (721) is smaller than the inner diameter of the outer positioning hole (520) and larger than the diameter of the fastener (700).

4. A transducer according to claim 3, wherein: an annular groove (800) is formed in one side, close to the positioning plate (620), of the box body (100), a gasket (810) is arranged in the annular groove (800), the gasket (810) comprises a ring body (811) and an extending portion (812) arranged in the ring body (811), the extending portion (812) extends towards the center of the ring body (811), and the extending portion (812) is in threaded contact with the fastener (700).

5. A transducer according to claim 4, wherein: six extending parts (812) are arranged, and the extending parts (812) tilt towards the center direction of the ring body (811).

6. A transducer according to claim 5, wherein: the fixing device is characterized in that a fixing ring (900) is arranged on the fastening piece (700), a limiting ring (910) is arranged in the positioning hole (610), an elastic piece (920) is arranged between the fixing ring (900) and the limiting ring (910), and the elastic piece (920) is sleeved on the fastening piece (700).