KR102052636B1 - Inverter apparatus having cable and terminal protection structure - Google Patents

Abstract

The present invention can be easily separated and reassembled only the part that is connected between the cable and the terminal to facilitate the operation of connecting the cable of the inverter device and the maintenance of the terminal, and to stably support the cable while guiding the cable and The present invention relates to an inverter device having a cover for exclusive use of a terminal block for preventing the parts of the inverter device from being damaged by an external force at the connection portion of the terminal. According to the present invention, an inverter device for converting an input power source into an AC power source having a high frequency, comprising: an upper open box-shaped lower body case having a plurality of terminal connection pieces arranged at an upper side edge and having a plurality of circuit components therein; A cover plate coupled to cover an open upper portion of the main body case and covering the plurality of terminal connection pieces to be exposed to the outside; A box-shaped upper main body case coupled to the lower main body case and having a terminal block opening portion at one edge thereof to expose the plurality of terminal connection pieces; Upper and lower case coupling means for detachably coupling the upper main body case to the lower main body case; And a terminal unit cover means detachably coupled to the terminal block opening portion of the upper body case to cover the terminal block opening portion of the upper body case.

Description

Inverter device with terminal block cover body {INVERTER APPARATUS HAVING CABLE AND TERMINAL PROTECTION STRUCTURE}

The present invention relates to an inverter device for converting an input power source into a high frequency alternating current power source, and more particularly, a cover body covering a portion connecting a cable and a terminal block can be easily separated and reassembled while maintaining a firm fixed state. It can be used to improve the durability, facilitate the cable connection work and maintenance of the terminal of the inverter device, and to stably support the cable while guiding the cable so that the components of the inverter device can be The present invention relates to an inverter device having a cover for exclusive use of a terminal block for preventing damage.

As is well known, an inverter device, also called an inverter (INVERTER) or inverter stack (INVERTER STACK), is a device for converting an input power source into a high frequency AC power source.

Such an inverter device is widely used for driving an induction heating device or a three-phase AC motor that heats metal and the like using a high frequency power source.

A typical inverter device may include a circuit unit including a case forming an accommodating space therein and a switching element disposed inside the case and configured to switch a DC power source to output a high frequency power source.

1 is a perspective view of a conventional inverter device, Figure 2 is an exploded perspective view of the cover of Figure 1, Figure 3 is a perspective view of the state before the cable of Figure 2 coupled.

As shown in Figures 1 to 3, the conventional inverter device, a case 10 for forming an accommodating space therein, and a circuit portion accommodated in the case 10 to convert the power into high-frequency AC power ( Not shown). The circuit unit may include a resistor, a fuse, a switching device for converting direct current into alternating current, a CT (current transducer) for detecting an output current, a snubber for suppressing a spike voltage generated during switching, and the like. It can be configured to include.

The switching device may be configured as an Insulated Gate Bipolar Transistor (IGBT) capable of high speed switching.

The case 10 may be formed in a substantially rectangular parallelepiped, and specifically, the case 10 may be detachably formed at one side of the case body 11 having a cylindrical shape having one side opened, and at one side of the case body 11. It may have a cover 21 to be coupled.

The circuit part may be accommodated and installed in the case body 11. A suction port 13 may be formed in the lower region of the case body 11 to cool the circuit part. The suction port 13 may be provided with a cooling fan 15 to suck the air into the interior to cool the interior.

The cover 21 may be provided with an operation panel 25 to input an operation signal, the cover is fixed to the case body 11 is coupled to the case body 11 to secure the cover 21 to the case body 11. Member 27 may be provided.

On the other hand, one side of the case body 11 may be provided with a terminal block 31 so that a plurality of cables 41 can be connected. The terminal block 31 is provided with a terminal fixing member 35 for fixing the terminals of the cable 41, respectively, and a booth portion connecting the cables 41 and circuit components provided in the case body 11. A bus bar connection part 37 to which a bus bar 39 is connected may be formed.

A bracket 45 having a cable insertion hole 47 penetrated therein may be provided in the lower region of the case body 11 to allow the cable 41 to enter and exit. The bracket 45 may be fixedly coupled to the case body 11 by a plurality of screws 48. A cover fixing member coupling part 49 may be formed at the bracket 45 to allow the cover fixing member 27 penetrating the cover 21 to be coupled thereto.

By the way, in the conventional inverter device, the entire cover 21 must be separated from the case body 11, and thus all the upper parts of the case body 11 which are unnecessary for the desired work are exposed to the outside, and thus the work is performed. There is a problem that the possibility of adverse effects due to unnecessary contact or falling of the work tool to other exposed parts.

In addition, in the conventional inverter device, when the cable 41 is connected, the terminal of the cable 41 is inserted through the cable insertion hole 47 of the bracket 45, and each terminal of the cable 41 is inserted. It is fixed to the terminal fixing member 35 of the terminal block 31, so that the cable 41 is excessively unnecessary contact with the bracket 45 and / or the terminal block 31 of the cable 41 The connection can be difficult.

In addition, since the support means of the cable 41 is not provided after the connection of the cable 41, external forces such as torsion acting on the cable 41 may be transmitted to the terminal block 31 and the terminal fixing member 35. Can be. Due to this, deformation and / or damage of the terminal block 31 may occur, and loosening of the terminal fixing member 35 may occur, and thus the energized state (or contact state) may not be maintained stably. .

In addition, the bracket 45 is fixed to the case body 11 with a plurality of screws 48, so that the screw 48 may cause the screw body 48 to be inadvertently engaged when the screw 48 is fastened. 11) may fall into, and in this case, the screw 48 entered into the case body 11 may cause product damage. In order to prevent this, the case body 11 needs to be disassembled and reassembled in order to recover the screw 48 introduced into the case body 11, which is necessary to separate and reassemble the case body 11. It takes a lot of time and effort, which can reduce productivity.

(Document 1) Republic of Korea Patent Publication No. 10-2016-0069367 (2016.06.16 published) (Document 2) Republic of Korea Patent Publication 10-1216465 (August 31, 2012) (Document 3) Republic of Korea Patent Publication 10-1294311 (August 08, 2013)

Therefore, the present invention for solving the above-described problems, while configuring a dedicated cover for the terminal block that is the portion that is connected between the cable and the terminal in the inverter device, and also while maintaining a fixed state of the terminal block dedicated cover very The purpose of the present invention is to provide an inverter device having a cover for exclusive use of a terminal block that can be easily separated and reassembled to improve durability, to facilitate the assembly of the inverter device, the connection of cables, and the maintenance of the terminal block parts. have.

In addition, the present invention can be connected to the terminal while being stably supported while guiding the cable connected to the terminal, and thus it is possible to suppress the damage of the components of the inverter device by the external force through the stable support at the terminal connection portion of the cable Another object is to provide an inverter device having a terminal block-specific cover body.

The problems of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention for achieving the objects and other features of the present invention, in the inverter device for converting an input power source into a high-frequency AC power source, a plurality of terminal connecting pieces are arranged on the upper one side edge, An upper open box-shaped lower body case configured with a plurality of circuit components; A cover plate coupled to cover an open upper portion of the main body case and covering the plurality of terminal connection pieces to be exposed to the outside; A box-shaped upper main body case coupled to the lower main body case and having a terminal block opening portion at one edge thereof to expose the plurality of terminal connection pieces; Upper and lower case coupling means for detachably coupling the upper main body case to the lower main body case; And a terminal unit cover means detachably coupled to the terminal block opening portion of the upper body case to cover the terminal block opening portion of the upper body case.

In the present invention, the lower body case is formed of a rectangular parallelepiped with an upper opening, and the cover plate is formed with a connecting piece opening portion for covering the plurality of terminal connecting pieces to be exposed to the upper side, and the connecting piece opening portion of the cover plate. A connecting piece partition plate is formed to separate each of the adjacent terminal connecting pieces from each other, and the upper body case is formed of a lower open rectangular parallelepiped, and one side of the upper surface and a portion of each of the sidewalls adjacent to the upper surface are formed to be opened. The terminal block opening portion is formed, and the lower portion of the side wall on which the terminal block opening portion is formed has a stepped stepped section in a “b” shape of vertical inversion, and the upper and lower case joining means is an opposite side wall of the upper body case. Between the lower end of the lower end and the upper end of the opposite side wall of the lower body case. It may be configured to be coupled to at least one way of coupling method or screw-coupling manner.

In the present invention, the terminal block dedicated cover means is formed corresponding to the terminal block opening portion, the terminal block cover member is formed with a cable passage groove or a through hole through which the plurality of cables pass; And a terminal block cover detachment means for detachably coupling the terminal block cover member to the upper body case.

In the present invention, the terminal block cover member is a top cover portion formed corresponding to the upper surface side opening portion of the terminal block opening portion, and a side wall cover formed perpendicularly to one side of the upper surface cover portion to cover the side wall side opening portion of the terminal block opening portion. And a plurality of cable passage grooves or through holes formed by a plurality of partition plates extending inwardly from the side wall cover portion to guide the plurality of cables to the terminal connecting pieces, the plurality of terminal block cover members including: The partition plate may be configured to be aligned in line with the connecting piece partition plate.

In the present invention, the terminal block cover detaching means is formed extending from both edges of the upper cover portion, the hook hook projection formed on the end; And hooking slots formed on sidewalls of the upper body case to lock the hooks.

In the present invention, the plate-shaped guide protrusion extending outwardly from both ends of the side wall cover portion; And a guide rail having a guide groove formed inside the side wall front end of the terminal block opening of the upper body case and into which the guide protrusion is inserted.

In the present invention, the upper cover of the box-shaped coupled to the upper portion of the terminal means dedicated cover means in at least one of a screw coupling method and a hooking method; And hook drop prevention means configured between the terminal block cover member and the upper cover to restrain the hook from falling off from the hooking slot when the terminal block cover member and the upper cover are coupled to each other.

In the present invention, the hook drop prevention means is a through slot formed in the upper cover portion on the upper side of the inner surface side of the hook that is opposite to the side on which the hook projection is formed; And support protrusions extending from lower ends of both sidewalls forming the upper cover body and inserted into the through slots when the terminal block cover member and the upper cover body are coupled to contact the inner surface side of the hook. have.

According to the inverter device having a terminal block cover body according to the present invention, when the connection and maintenance between the cable and the terminal of the inverter device which is relatively frequently executed, the assembly between the cable and the terminal of the inverter device can be easily separated and reassembled. In order to improve the assemblability of the inverter device, it is possible to easily carry out cable connection work and maintenance of the terminal material.

In addition, the present invention can be connected to the terminal while being stably supported while guiding the cable connected to the terminal, and thus to suppress the damage of the components of the inverter device by the external force through the stable support at the terminal connection portion of the cable It is effective.

The effects of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a perspective view of a conventional inverter device.
FIG. 2 is an exploded perspective view of the cover of the inverter device of FIG. 1. FIG.
3 is a perspective view of a state before the cable of FIG.
4 is a perspective view showing the overall configuration of the inverter device according to the present invention.
5 is an exploded perspective view showing a separate inverter device according to the present invention.
6 is a perspective view showing the assembled state of the terminal block cover means constituting the inverter device according to the present invention.
Figure 7 is a perspective view showing a state in which the cover means for exclusive use of the terminal block constituting the inverter device according to the present invention.
8 is an enlarged view of a part of a cover for exclusive use of the terminal block constituting the inverter device according to the present invention.
9 is an exploded view of some components of the inverter device according to the present invention and viewed from the rear side.
10 is a cross-sectional view of the side view (a) and side view "A" of the inverter device according to the present invention.

Further objects, features and advantages of the present invention can be more clearly understood from the following detailed description and the accompanying drawings.

Prior to the detailed description of the present invention, the present invention may be variously modified and may have various embodiments, and the examples described below and illustrated in the drawings are intended to limit the present invention to specific embodiments. It is to be understood that the present invention includes all modifications, equivalents, and substitutes included in the spirit and technical scope of the present invention.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. As used herein, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described on the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

In addition, the terms "... unit", "... unit", "... module", and the like described in the specification mean a unit for processing at least one function or operation, which means hardware or software or hardware and It can be implemented in a combination of software.

In addition, in the description with reference to the accompanying drawings, the same components regardless of reference numerals will be given the same reference numerals and duplicate description thereof will be omitted. In the following description of the present invention, if it is determined that the detailed description of the related known technology may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

Hereinafter, an inverter device having a terminal block cover body according to an exemplary embodiment of the present invention will be described in detail with reference to FIGS. 4 to 8. 4 is a perspective view showing the overall configuration of the inverter device according to the present invention, Figure 5 is an exploded perspective view showing the inverter device according to the present invention separately. FIG. 6 is a perspective view illustrating a state in which a terminal block exclusive cover means constituting the inverter device according to the present invention is assembled, and FIG. 7 is a perspective view illustrating a separated state of the terminal block exclusive cover means constituting the inverter device according to the present invention. 8 is an enlarged view of a part of a cover for exclusive use of the terminal block constituting the inverter device according to the present invention.

In the inverter device according to the present invention, an inverter device for converting an input power source into a high frequency AC power source, wherein a plurality of terminal connection pieces (terminals) 110 to which a plurality of cables (not shown) are connected are arranged at one upper edge thereof. An upper open box-shaped lower main body case 100 having a plurality of circuit components configured to convert power into high frequency AC power; A cover plate 200 coupled to cover an open upper portion of the main body case 100, wherein the plurality of terminal connection pieces 110 are exposed to the outside; A box-shaped upper main body case (or terminal cover case) 300 coupled to an upper portion of the lower main body case 100, wherein a terminal block opening 310 is formed at one edge thereof to expose the plurality of terminal connection pieces 110. ); Upper and lower case coupling means for coupling the upper main body case 300 to the lower main body case 100; And a terminal block dedicated cover means 400 detachably coupled to the terminal block opening of the upper body case 300 to cover the terminal block opening 310 of the upper body case 300.

The lower body case 100 may be configured as an approximately rectangular parallelepiped that is open at the upper side. The circuit components included in the lower body case 100 may include, for example, a switch for converting a resistor, a fuse, and a direct current into alternating current. A device, a current transducer (CT) for detecting an output current, a snubber for suppressing a spike voltage generated during switching, and the like may be provided. The switching device may be configured of an insulated gate bipolar transistor (IGBT).

Next, the cover plate 200 is formed with a connecting piece opening part (slot shape or hole shape) to cover the plurality of terminal connecting pieces 110 to the upper side, the upper opening of the lower body case 100 It is formed to be slightly smaller than the open area of the part to cover the upper opening of the lower body case 100.

In addition, a connecting piece partition plate 210 for separating and partitioning each of the neighboring terminal connecting pieces 110 from each other is formed in the connecting piece opening of the cover plate 200, and by the connecting piece partition plate 210. The terminal of may be guided and connected to the terminal connecting piece (110).

The cover plate 200 is screwed with the lower main body case 100, for example, the lower main body case 100 is formed with a coupling protrusion having a threaded coupling hole with a gap inside the edge, the coupling A coupling hole is formed in the cover plate 200 at a position corresponding to the position where the protrusion is formed, and the screw member is screwed into the coupling hole of the coupling protrusion of the lower body case 100 through the coupling hole of the cover plate 200. By screwing).

Next, the upper main body case (or terminal cover case) 300 is formed with a terminal block opening portion 310 on one side edge, in one embodiment the terminal block opening portion 310 is formed through the following configuration. .

The upper main body case (or terminal cover case) 300 is formed as a rectangular parallelepiped, which is generally lower open, and a portion of each of sidewalls adjacent to one side of the upper surface and one side of the upper surface is opened to form the terminal block opening 310. The lower side of the sidewall formed with the terminal block opening 310 is formed with a stepped step portion 311 in a cross-sectional inverse “a” shape (or “b” shape of vertical inversion).

An operation panel unit 320 having a plurality of operation buttons for inputting an operation signal in an upper region of the upper main body case (or terminal cover case) 300, and an operation signal of the operation panel unit 320. A control unit cable connection unit (not shown) for transmitting the internal circuit parts of the main body case, and the cable connection unit covering the operation unit cable connection unit 330 and detachably provided on an upper surface of the upper main body case 300. A dedicated detachable cover member 340 is included.

The detachable cover member 340 for the cable connection part is coupled to the upper body case 300 to be hooked and detached. For example, a hook having a hook catching protrusion is formed at an end of the edge of the detachable cover member 340 dedicated to the cable connection, and a hook is formed on an upper surface of the upper body case 300 at a position corresponding to the position at which the hook is formed. A locking slot is formed, and a release slot is formed at one side wall of the upper body case 300 to expose the hook locking protrusion of the hook in a locked state, and the detachable cover member 340 for the cable connection part is formed on the upper body case. Hook is coupled to the upper surface of 300, it may be made to be hooked off from the upper surface.

Next, upper and lower case coupling means for coupling the upper main body case 300 to the lower main body case 100, the lower end of the side wall facing the upper main body case 300 and the lower main body case 100 It may be configured to be coupled in at least one of hook coupling method or screw coupling method between the upper end of the side wall.

For example, the upper and lower case coupling means may include a plurality of coupling holes formed on the stepped upper surface of the stepped portion 311 of the upper main body case 300 and positions corresponding to the positions where the screw coupling holes are formed. Threaded engagement bore formed in the lower body case 100, a screw member for screwing into the coupling bore through the coupling hole of the upper body case 300, and the upper body facing the stepped portion 311 Two or more hooks extending from the lower end of the side wall of the case 300 and having hook hooking protrusions formed at the end thereof, and formed on the side wall of the upper body case 100 at a position corresponding to the position at which the hook protrusions are formed. Hook hook projection may be configured as a hook locking slot is fixed.

Next, a description will be given of a terminal block dedicated cover means 400 detachably coupled to the terminal block opening portion of the upper body case 300 to cover the terminal block opening portion 310 of the upper body case 300.

The terminal block exclusive cover means 400 is formed to correspond to the terminal block opening portion 310, the terminal block cover member 410 is formed with a cable passage groove or a passage hole 401 through which a plurality of cables pass, and the terminal block And a terminal block cover detachment means for detachably coupling the cover member 410 to the upper body case 300.

The terminal block cover member 410 is formed so as to be orthogonal to one side of the upper cover portion 411 and the upper cover portion 411 formed corresponding to the upper surface side opening of the terminal block opening portion 310 to open the terminal block. A terminal connection piece 110 is formed by a side wall cover portion 412 covering the side wall side opening portion of the portion 310 and a plurality of partition plates extending inwardly from the side wall cover portion 412. It includes a cable passage groove or a through hole 401 to guide.

The plurality of partition plates of the terminal block cover member 410 are configured to be aligned in line with the connection piece partition plate 210.

In addition, the cable passage groove or the through hole 401 of the terminal block cover member 410 is formed to a size that the operator's fingers can not enter. In other words, the cable through hole or through hole 401 of the terminal block cover member 410 has a terminal connection piece 110 through which a high current flows. It is preferably formed to a size that does not allow access to the terminal connecting piece 110 through.

Subsequently, the terminal block cover detaching means extends from both side edges of the upper cover part 411, and a hook 421 having hook hooking protrusions formed at an end thereof, and a side wall of the upper main body case 300. 421 includes a hooking slot 422 is fixed. In addition, a pair of guide rails are formed on an inner surface of the upper main body case 300 of the hooking slot 422, and a hook insertion groove 423 into which the hook 421 is inserted is formed.

The present invention can be carried out by separating only the terminal block cover means 400 through the simple release of the terminal block cover detachable means for the connection of the cable and maintenance of the terminal block is configured by the terminal block cover means 400 as described above. Will be.

On the other hand, the present invention is a position configured to stably position and couple the terminal block dedicated cover means 400 to the upper body case 300 when the terminal block dedicated cover means 400 and the upper body case 300 is coupled It further comprises a determining means.

For example, the positioning means includes a plate-shaped guide protrusion 510 extending outwardly from both ends of the side wall cover portion 412 constituting the terminal block cover member 410, and the terminal block opening of the upper body case 300. The guide protrusion 510 is inserted into the guide groove 520 formed between the guide rails and includes a pair of guide rails inside the sidewall front end of the part 310.

Accordingly, the terminal block dedicated cover means 400 can be firmly fixed while being accurately positioned with respect to the upper body case 300 by the positioning means.

In addition, the present invention may further include an upper cover body 450 for covering the upper portion of the terminal block dedicated cover means 400.

The upper cover body 450 may be coupled to the terminal unit cover unit 400, specifically, to the upper cover portion 410 of the terminal unit cover unit 400 by a screw coupling method and / or hook hook method. In the exemplary embodiment illustrated in the drawing, the upper cover body 450 has a fitting protrusion 451 formed at one lower surface of the upper cover part 410 of the terminal cover cover unit 400, thereby providing an upper portion of the upper body housing 300. Is fitted into a fitting slot (not shown) formed in the part cover housing 350 which protrudes into a faceted body, and a fastening hole 461 is formed on the other side of the upper cover body 450 to be screwed into the fastening hole 461. The case in which the member 462 penetrates and is coupled to the coupling bore 413 formed in the upper cover portion 410 of the terminal block exclusive cover means 400 by a screw coupling method.

On the other hand, the present invention is to support the hook 421 to prevent the hook 421 is prevented from falling off from the hooking slot 422 hook drop prevention means for more securely holding the terminal block cover means 400 It includes more.

The hook drop prevention means will be described in detail with reference to FIGS. 9 and 10 and FIG. 8. 9 is an exploded view of some components of the inverter device according to the present invention and viewed from the rear side, and FIG. 10 is a cross-sectional view of the side view (a) and side view (a) of the inverter device according to the present invention.

As shown in FIGS. 8 to 10, the hook drop prevention means includes a through slot 610 formed on the upper cover part 400 on the inner side of the hook 421 (the opposite side to the side on which the hook protrusion is formed). (See FIG. 8), and support protrusions 620 extending from lower ends of both sidewalls of the upper cover body 450 and inserted into the through slots 610 to contact an inner surface side of the hook 421. 9).

The hook drop prevention means as described above, the hook 421 of the terminal block dedicated cover means 400 is hooked to the hooking slot 422 formed in the upper body case 300, the upper cover body 450 Is coupled to the terminal block-specific cover means 400, the support projections 620 formed on both side walls of the upper cover body 450 is inserted into the through slot 610 to contact and support the inner surface side of the hook 421, accordingly The hook 421 restrains movement in the direction in which the hook 421 is released from the hooking slot 422.

Here, the hook 421 is inserted into the hook insertion groove 423 and the direction in which the hook 421 is coupled with the hooking slot 422 by a pair of guide rails forming the hook insertion groove 423. Constrain the movement in the orthogonal direction.

In other words, when the upper cover body 450 is not coupled to the terminal block-only cover means 400, the terminal block-only cover means 400 coupled to the upper body case 300 by a hooking method is lifted. The hook 421 is pushed backward and is released from the hooking slot 422. However, in the state in which the upper cover body 450 is coupled to the terminal cover-only cover means 400, even if the terminal cover-only cover means 400 is loosely coupled to the upper body case 300, the hook fall prevention Since the means supports the inner surface side of the hook 421, the hook 421 can be prevented from falling out of the hooking slot 422, and a rigid coupling structure can be maintained.

In addition, the hook drop prevention means is formed on the bottom surface of the upper cover body 450 of the protrusion 630 and the contact projection 620 is formed to extend upwardly projecting from the top of the hook 421. And further includes a seating groove 640 to which the protrusion piece 630 is fitted. Accordingly, when the upper cover body 450 is coupled to the terminal block-specific cover means 400, a more robust coupling structure can be secured by the uneven coupling of the protrusion piece 630 and the seating groove 640.

According to the inverter device having a terminal block cover body according to the present invention as described above, the assembly between the cable and the terminal of the inverter device when the connection and maintenance between the cable and the terminal of the inverter device is relatively frequently executed And it can be reassembled to improve the assembly of the inverter device, there is an advantage that can easily perform the connection work and maintenance of the terminal material of the cable.

In addition, the present invention can be connected to the terminal while being stably supported while guiding the cable connected to the terminal, and thus to suppress the damage of the components of the inverter device by the external force through the stable support at the terminal connection portion of the cable This has the advantage.

The embodiments and the accompanying drawings described herein are merely illustrative of some of the technical ideas included in the present invention. Therefore, since the embodiments disclosed herein are not intended to limit the technical spirit of the present invention, but to explain, it is obvious that the scope of the technical spirit of the present invention is not limited by these embodiments. Modifications and specific embodiments that can be easily inferred by those skilled in the art within the scope of the technical spirit included in the specification and drawings of the present invention should be construed as being included in the scope of the present invention.

100: lower body case
110: terminal connection
200: cover plate
210: terminal block partition plate
300: upper body case (terminal cover case)
311: step
310: terminal block opening
320: operation panel unit
340: detachable cover member for the cable connection
400: cover means for the terminal block
401 cable through hole (cable through hole)
411: top cover
412: side wall cover portion
421: hook
422 hook hook slot
510: guide turning
520: guide rail
521: guide groove

Claims (7)

In the inverter device which converts an input power supply into a high frequency alternating current power supply,
An upper open box-shaped lower body case in which a plurality of terminal connection pieces are arranged at one upper edge and in which a plurality of circuit components are formed;
A cover plate coupled to cover an open upper portion of the main body case and covering the plurality of terminal connection pieces to be exposed to the outside;
A box-shaped upper main body case coupled to the lower main body case and having a terminal block opening portion at one edge thereof to expose the plurality of terminal connection pieces;
Upper and lower case coupling means for detachably coupling the upper main body case to the lower main body case; And
And a terminal unit dedicated cover means detachably coupled to the terminal block opening of the upper body case to cover the terminal block opening of the upper body case.
The lower body case is formed of an open rectangular parallelepiped,
The cover plate is formed with a connecting piece opening for covering the plurality of terminal connecting pieces to be exposed to the upper side,
In the connection piece opening of the cover plate, a connection piece partition plate for separating and partitioning each neighboring terminal connection piece from each other is formed,
The upper body case is formed of a lower open rectangular parallelepiped, and a portion of each of the sidewalls adjacent to one side of the upper surface and one side of the upper surface is formed to form the terminal block opening portion, and a cross section is disposed on the lower portion of the side wall on which the terminal block opening portion is formed. It is formed with a stepped step in the form of "b" of reversal,
The upper and lower case coupling means is configured to be coupled between at least one of hook coupling or screw coupling between the lower end of the opposite side wall of the upper body case and the upper end of the opposite side wall of the lower body case.
The terminal block cover means may include: a terminal block cover member formed corresponding to the terminal block opening and having a cable passage groove or a through hole through which the plurality of cables pass; And a terminal block cover detachment means for detachably coupling the terminal block cover member to the upper body case.
The terminal block cover member may include an upper cover part corresponding to an upper surface side open part of the terminal block opening part, a side wall cover part formed to be orthogonal to one side of the upper cover part to cover the side wall side opening part of the terminal block opening part, and the side wall. A cable passage groove or a through hole formed by a plurality of partition plates extending inwardly from the cover portion to guide the plurality of cables to the terminal connecting piece,
The plurality of partition plates of the terminal block cover member is configured to be aligned in line with the connecting piece partition plate,
The terminal block cover detachment means includes a hook extending from both edges of the upper cover portion and having a hook catching protrusion at an end thereof; And hooking slots formed on sidewalls of the upper main body case, the hooking slots for locking the hooks.
An inverter device having a cover body exclusively for a terminal block. delete delete delete delete The method of claim 1,
Plate-like protrusions extending outwardly from both ends of the side wall cover portion; And
It includes a guide rail formed in the front end of the side wall front end of the terminal block opening of the upper body case is formed with a guide groove for inserting the guide projections
An inverter device having a cover body exclusively for a terminal block.
The method of claim 1,
A box-shaped upper cover body coupled to at least one of a screw coupling method and a hook hooking method to an upper portion of the terminal block-only cover means; And
And a hook drop prevention means configured between the terminal block cover member and the upper cover to restrain the hook from falling off from the hooking slot when the terminal block cover member is coupled to the upper cover.
An inverter device having a cover body exclusively for a terminal block.

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