CN216721185U - Movement structure and frequency converter - Google Patents

Abstract

This application is applicable to frequency conversion equipment technical field, provides a core structure and converter, and the core structure includes: the radiator is provided with a substrate on one side; the inversion module is arranged on the substrate and is arranged in an L shape; and the rectification module and the inversion module are arranged on the same side of the substrate and are positioned at the L-shaped opening of the inversion module. The frequency converter comprises a core structure. Through adopting above-mentioned technical scheme, be L shape overall arrangement with the contravariant module on the base plate, and with the rectifier module overall arrangement at the L shape opening part of contravariant module for contravariant module and rectifier module are rationally distributed on the base plate more, have solved contravariant module and rectifier module and have leaded to the unreasonable problem of overall arrangement because of the size phase difference is great, guarantee the space utilization of base plate, so, help reducing the overall arrangement cost of contravariant module and rectifier module.

Description

Movement structure and frequency converter

Technical Field

The application belongs to the technical field of frequency conversion equipment, and more specifically relates to a core structure and a frequency converter.

Background

In the layout design of the frequency converter, a rectifier module and an inverter module of a power component are generally required to be arranged on a radiator, so that the heat dissipation effect of the power component is realized, and the service life of the power component is ensured.

In the conventional scheme, the layout mode of the rectifier module and the inverter module on the radiator is that the rectifier module and the inverter module are linearly arranged on the same radiator at intervals, and the size difference between the inverter module and the rectifier module is large, so that the space utilization rate of the radiator is low, and the layout cost is high. In order to solve the technical problem, the rectifier module and the inverter module are usually arranged on two radiators with different sizes, so that the number of the radiators is increased, the installation of the radiators, the rectifier module and the inverter module on the frequency converter is not facilitated, and the cost is increased due to the arrangement.

SUMMERY OF THE UTILITY MODEL

One of the purposes of the embodiment of the application is as follows: the utility model provides a core structure, aims at solving among the prior art, the low technical problem who leads to with high costs of space utilization of radiator base plate.

In order to solve the technical problem, the embodiment of the application adopts the following technical scheme:

there is provided a core structure including:

the radiator is provided with a substrate on one side;

the inversion module is arranged on the substrate and is arranged in an L shape;

and the rectification module and the inversion module are arranged on the same side of the substrate and are positioned at the L-shaped opening of the inversion module.

In one embodiment, the movement structure further includes a case disposed on the substrate, and the inverter module and the rectifier module are both accommodated in the case.

In one embodiment, the chassis includes:

the frame is arranged on the substrate and is framed on the peripheries of the inversion module and the rectification module;

the two side plates are respectively arranged on two opposite sides of the frame;

the push-pull plate is arranged between the two side plates and can be pushed and pulled to move relative to the side plates so as to switch between a first state and a second state; the case is divided into a first layer space and a second layer space by the push-pull plate in the first state, the inversion module and the rectification module are both positioned in the first layer space, and the first layer space is opened by the push-pull plate in the second state;

the movement structure further comprises a first circuit board assembly arranged on the push-pull plate.

In one embodiment, the two push-pull plates are arranged, and the two push-pull plates are distributed in sequence along the push-pull direction and can push and pull towards or away from each other.

In one embodiment, the opposite sides of the two side plates are respectively provided with an adapter frame, and the two ends of the push-pull plate are respectively arranged on the two adapter frames and can be pushed and pulled on the adapter frames.

In one embodiment, the chassis further comprises a rotating plate, and the base plate, the push-pull plate and the rotating plate are sequentially distributed at intervals; one side of the rotating plate is hinged to the two side plates, the other side of the rotating plate is detachably locked to the side plates or the frame, and the rotating plate can open or close the second layer of space when rotating relative to the side plates;

the movement structure further comprises a second circuit board assembly arranged on the rotating plate.

In one embodiment, the side plate and/or the frame is provided with a binding member, and the binding member is positioned on one side of the rotating plate hinged to the side plate and is respectively spaced from the rotating plate and the push-pull plate.

In one embodiment, the binding member is connected between the two side plates.

In one embodiment, the movement structure further includes a capacitor module, and the capacitor module is electrically connected to the rectifier module and located outside the case.

This embodiment still provides a converter, includes the core structure.

The core structure that this application embodiment provided's beneficial effect lies in: compared with the prior art, in this application, through being L shape overall arrangement with the contravariant module on the base plate, and with the rectifier module overall arrangement at the L shape opening part of contravariant module for contravariant module and rectifier module are rationally distributed on the base plate more, have solved contravariant module and rectifier module and have leaded to the unreasonable problem of overall arrangement because of the size phase difference is great, guarantee the space utilization of base plate, so, help reducing the overall arrangement cost of contravariant module and rectifier module. Correspondingly, the converter that this embodiment provided through adopting above-mentioned rationally distributed core structure, helps guaranteeing the space utilization of converter, reduces the part cost of converter.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a partial schematic view of a movement structure provided in an embodiment of the present application;

fig. 2 is a top view of a power module mating substrate of the movement structure provided in fig. 1;

FIG. 3 is a schematic view of the deck structure of FIG. 1 in cooperation with a push-pull plate;

figure 4 is a schematic diagram of the deck structure provided in figure 3 in cooperation with a first circuit board assembly;

FIG. 5 is an enlarged view of a portion of FIG. 1 at A;

FIG. 6 is a schematic view of the deck structure provided in FIG. 4 in cooperation with a rotating plate;

figure 7 is a schematic view of the deck structure provided in figure 6 in cooperation with a second circuit board assembly;

figure 8 is a schematic view of the deck structure provided in figure 7 with the pivotal plates open;

fig. 9 is a schematic diagram of the movement structure provided in fig. 8 in cooperation with a capacitor module.

Wherein, in the figures, the respective reference numerals:

1-a radiator; 101-an explosion-proof area; 11-a heat sink body; 12-a substrate; 2-a power component; 21-an inverter module; 211-a first module; 212-a second module; 22-a rectification module; 3-a case; 31-a frame; 32-side plate; 33-a push-pull plate; 34-a transfer frame; 341-an installation portion; 342-an adapter; 35-a rotating plate; 3501-line hole; 36-a wire tie; 4-a first circuit board assembly; 5-a second circuit board assembly; 6-a capacitive module; 7-a pivot axis; 8-a fixing piece; y1 — first direction; x 1-second direction; z-a third direction; y 2-fourth direction; x 2-fifth direction.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, is not to be considered as limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise, wherein two or more includes two.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The following detailed description is made with reference to the accompanying drawings and examples:

referring to fig. 1 and fig. 2 together, a movement structure provided in the embodiment of the present application includes a heat sink 1 and a power module 2. Wherein, one side of the radiator 1 is provided with a substrate 12; it is understood that the heat sink 1 includes a heat sink body 11 and a substrate 12, and the substrate 12 is provided at one side of the heat sink body 11. The power assembly 2 includes an inverter module 21 and a rectifier module 22. The inverter module 21 is disposed on one side of the substrate 12 and is L-shaped. The rectifying module 22 and the inverting module 21 are disposed on the same side of the substrate 12, and are located at the L-shaped opening of the inverting module 21.

It should be noted that, as shown in fig. 2, the inverter module 21 includes a first module 211 and a second module 212, the first module 211 is disposed to extend along the first direction y1, and the second module 212 is disposed on one side of the first module 211 in the second direction x1, so that the first module 211 and the second module 212 substantially enclose to form an L shape; the inversion module 21 and the second module 212 are disposed on the same side of the first module 211 in the second direction x1, the inversion module 21 and the first module 211 are disposed adjacent to each other along the second direction x1, and the inversion module 21 and the second module 212 are disposed adjacent to each other along the first direction y1, such that the inversion module 21 is located at the L-shaped opening formed by the first module 211 and the second module 212. The first direction y1 is a general extending direction of the first module 211, the inverter module 21 and the rectifier module 22 are disposed on one side of the substrate 12 in the third direction z, and the first direction y1, the second direction x1 and the third direction z are disposed two by two and are substantially perpendicular to each other.

Optionally, when the movement structure is applied to an explosion-proof frequency converter, the substrate 12 divides an explosion-proof area 101, and the inverter module 21 and the rectifier module 22 are both located in the explosion-proof area 101.

In the embodiment of the present application, the inverter module 21 is disposed on the substrate 12 in an L shape, and the rectifier module 22 is disposed at the L-shaped opening of the inverter module 21, so that the inverter module 21 and the rectifier module 22 are disposed on the substrate 12 more reasonably, the problem of unreasonable layout caused by a large size difference between the inverter module 21 and the rectifier module 22 is solved, the space utilization rate of the substrate 12 is ensured, and therefore, the layout cost of the inverter module 21 and the rectifier module 22 is reduced. It should be added here that, because the core structure of this embodiment makes the layout of the inverter module 21 and the rectifier module 22 more reasonable, the inverter module 21 and the rectifier module 22 can be reasonably distributed on the substrate 12 of the same heat sink 1, so that the number of the heat sinks 1 is reduced, the assembly and layout operation of the core structure are facilitated, and the cost of the core structure is further ensured.

In one embodiment, referring to fig. 1, the core structure further includes a case 3, the case 3 is disposed on the substrate 12, and the inverter module 21 and the rectifier module 22 are both accommodated in the case 3. Through adopting above-mentioned technical scheme, realize the guard action to power component 2.

In one embodiment, referring to fig. 1, 3 and 4, the casing 3 includes a frame 31, two side plates 32 and a push-pull plate 33. The frame 31 is provided on the substrate 12 and is framed on the outer peripheries of the inverter module 21 and the rectifier module 22. The two side plates 32 are disposed on opposite sides of the frame 31 such that the inverter module 21 and the rectifier module 22 are located between the two side plates 32. The push-pull plate 33 is arranged between the two side plates 32 and can be pushed and pulled relative to the side plates 32 to switch between a first state and a second state; the push-pull plate 33 divides the cabinet 3 into a first floor space and a second floor space in the first state, the inverter module 21 and the rectifier module 22 are both located in the first floor space, and the push-pull plate 33 opens the first floor space in the second state.

The movement structure further comprises a first circuit board assembly 4 arranged on the push-pull plate 33. As shown in fig. 4, when the push-pull plate 33 is in the first state, the first circuit board assembly 4 is located in the second floor space; of course, the first circuit board assembly 4 may be located in the first floor space at this time according to actual requirements.

It should be noted that, as shown in fig. 3 and 4, the two side plates 32 are respectively disposed on two opposite sides of the frame 31 in the fourth direction y2, and the push-pull plate 33 can be pushed and pulled with respect to the two side plates 32 along the fifth direction x 2. The third direction z, the fourth direction y2 and the fifth direction x2 are arranged approximately vertically two by two; in this embodiment, the fourth direction y2 is parallel to the first direction y1, and correspondingly, the fifth direction x2 is parallel to the second direction x 1; of course, the fourth direction y2 may also be perpendicular to the first direction y1, and correspondingly, the fifth direction x2 is perpendicular to the second direction x1 according to the actual installation requirement.

As shown in fig. 3 and 4, the push-pull plate 33 is in the first state, in which the push-pull plate 33 covers one side of the power module 2 along the third direction z, so as to divide the internal space of the chassis 3 into a first floor space and a second floor space, and the first floor space and the second floor space are distributed along the third direction z; it will be appreciated that the push-pull plate 33 closes the first floor space in the first state. The push-pull plate 33 divides the inner space of the chassis 3 into a first layer space and a second layer space, the push-pull plate 33 closes the first layer space in the first state, the push-pull plate 33 is not considered to seal the first layer space and the second layer space, the first layer space and the second layer space are roughly divided by the push-pull plate 33, and the first layer space and the second layer space can be arranged in a communicating manner at the moment, so that the connection between the first circuit board assembly 4 and the power assembly 2 is facilitated. When the push-pull plate 33 is in the second state (not shown), the push-pull plate 33 has moved in the fifth direction x2 relative to the side plate 32 and moved out of the first floor space to open the first floor space, thereby exposing the power module 2 in the first floor space. It will be appreciated that the pushing and pulling movement of the push-pull plate 33 in the fifth direction x2 allows the push-pull plate 33 to be designed like a drawer, such that the push-pull plate 33 can be pulled out of the first floor space to open the first floor space, or pushed to close the first floor space.

It should be added that when a cable is connected between the first circuit board assembly 4 on the push-pull plate 33 and the power assembly 2, the cable can be set to a predetermined length, so that the first circuit board assembly 4 can ensure the wiring result of the cable when moving simultaneously with the push-pull plate 33 under the pushing and pulling actions of the push-pull plate 33.

Generally, in the conventional solution, the power module 2 and the circuit board assembly are generally stacked on the substrate 12, when the power module 2 or the circuit board assembly needs to be repaired, the circuit board assembly needs to be disassembled layer by layer, and the structures of the power module 2 and the circuit board assembly are complicated, so that the repair workload of the power module 2 and the circuit board assembly is very large. In the embodiment, by adopting the above technical scheme, the push-pull plate 33 can be pushed and pulled relative to the side plate 32 to switch between the first state and the second state, so that the push-pull plate 33 can be pulled out of the first layer space to open the first layer space, thereby exposing the power assembly 2, facilitating the maintenance work of the power assembly 2, simplifying the maintenance work of the movement structure, saving the maintenance time, ensuring the maintenance efficiency of the movement structure, simplifying the installation operation of the movement structure and saving the cost, without detaching the circuit board assembly and the power assembly 2 layer by layer; meanwhile, based on the fact that the first circuit board assembly 4 is arranged on the push-pull plate 33, after the push-pull plate 33 is pulled out of the first floor space, maintenance work of the first circuit board assembly 4 is facilitated, and simultaneous maintenance work of the first circuit board assembly 4 and the power assembly 2 can be achieved.

In one embodiment, referring to fig. 3 and fig. 4, two push-pull plates 33 are provided, and the two push-pull plates 33 are distributed in sequence along the push-pull direction thereof and can be pushed and pulled toward or away from each other. By adopting the technical scheme, the two push-pull plates 33 can push and pull oppositely to close the first layer of space together, and the two push-pull plates 33 can push and pull reversely to open the first layer of space together; in this way, one or two push-pull plates 33 can be pushed and pulled according to actual requirements, so that the maintenance work of the power assembly 2 and the first circuit board assembly 4 is more flexible; moreover, the two push-pull plates 33 are arranged, so that the length of each push-pull plate 33 in the push-pull direction is reduced, the phenomenon that the push-pull plates 33 cannot be supported when being pulled out of the first floor space can be prevented, and the safety of the first circuit board assembly 4 on the push-pull plates 33 is ensured.

In one embodiment, referring to fig. 1, 3 and 4, the two side plates 32 are provided with two adapter brackets 34 on opposite sides thereof, and the two ends of the push-pull plate 33 are respectively provided with two adapter brackets 34 and can be pushed and pulled on the adapter brackets 34. By adopting the technical scheme, the side plate 32 can support the push-pull plate 33 through the adapter bracket 34, and the push-pull plate 33 can realize push-pull movement on the adapter bracket 34, so that the push-pull movement effect of the push-pull plate 33 is ensured.

Optionally, the push-pull plate 33 and the adapter bracket 34 may be detachably connected by a screw or a snap, and when the push-pull plate 33 and the adapter bracket 34 are disassembled, the push-pull plate 33 may be pulled out of the first floor space; when the push-pull plate 33 is pushed to cover the first floor space, the connection between the push-pull plate 33 and the adapter bracket 34 can be achieved by a screw or a snap.

As shown in fig. 5, the adapter bracket 34 includes an attachment portion 341 attached to the side plate 32 and an adapter portion 342 provided on the attachment portion 341, and the push-pull plate 33 is supported by the adapter portion 342.

In one embodiment, referring to fig. 6 to 8, the chassis 3 further includes a rotating plate 35, and the base plate 12, the push-pull plate 33 and the rotating plate 35 are sequentially spaced apart. One side of the rotating plate 35 is hinged to the two side plates 32, the other side of the rotating plate 35 is detachably locked to the side plates 32 or the frame 31, and the rotating plate 35 can open or close the second layer space when rotating relative to the side plates 32. Illustratively, as shown in fig. 7, the pivoting panel 35 closes the second floor space, and as shown in fig. 8, the pivoting panel 35 opens the second floor space.

The movement structure further comprises a second circuit board assembly 5 arranged on the rotating plate 35. The second circuit board assembly 5 is disposed on a side of the rotating plate 35 facing away from the second floor space, that is, as shown in fig. 7, when the rotating plate 35 is in a state of closing the second floor space, the second circuit board assembly 5 is disposed outside the second floor space; of course, according to practical requirements, when the rotating plate 35 is in a state of closing the second floor space, the second circuit board assembly 5 may be located in the second floor space at this time.

By adopting the above technical solution, the rotating plate 35 can rotate relative to the side plate 32 to open or close the second floor space; thus, when the first circuit board assembly 4 needs to be maintained, the rotating plate 35 can be rotated, so that the second layer of space is opened by the rotating plate 35, and the first circuit board assembly 4 on the second layer of space is exposed at the moment, which is beneficial to the maintenance work of the first circuit board assembly 4; of course, the push-pull plate 33 may be directly pulled out of the first floor space at this time, so as to perform maintenance work on the first circuit board assembly 4. When the power assembly 2 needs to be maintained, the rotating plate 35 can be rotated, so that the second layer of space is opened by the rotating plate 35, and the push-pull plate 33 is pulled out of the first layer of space, so that the power assembly 2 is exposed outside, the maintenance work of the power assembly 2 is facilitated, the first circuit board assembly 4, the second circuit board assembly 5 and even the power assembly 2 do not need to be disassembled layer by layer, the maintenance work of the core structure is simplified, the maintenance time is saved, the maintenance efficiency of the core structure is ensured, the installation operation of the core structure is simplified, and the cost is saved; meanwhile, when the rotating plate 35 opens the second floor space and the push-pull plate 33 is pulled out of the first floor space, the first circuit board assembly 4, the second circuit board assembly 5 and the power assembly 2 can be simultaneously repaired.

In a specific embodiment, referring to fig. 6 and 7, one side of the rotating plate 35 is hinged to the side plate 32 through the pivot shaft 7, so as to realize the rotation of the rotating plate 35 on the side plate 32; and, the other side of rotating plate 35 is detachably fixed on lateral plate 32 or frame 31 through fixing piece 8 such as screw, buckle, so can guarantee that rotating plate 35 closes second floor space, realize the protective effect to first circuit board subassembly 4, power component 2 of quick-witted case 3 inside.

In a specific embodiment, the rotation plate 35 is opened with a wire through hole 3501, so that the cable of the second circuit board assembly 5 can pass through the wire through hole 3501 to form an electrical connection with the power assembly 2 and/or the first circuit board assembly 4.

In one embodiment, referring to fig. 4, 6 to 8, the side plate 32 and/or the frame 31 is provided with a binding member 36, and the binding member 36 is located at a side of the rotating plate 35 hinged to the side plate 32 and spaced apart from the rotating plate 35 and the push-pull plate 33, respectively. Through adopting above-mentioned technical scheme for wire binding piece 36 is located rotating plate 35 and curb plate 32 articulated one side, and with rotating plate 35 interval distribution, then the cable that extends from second circuit board subassembly 5 can be tied up on wire binding piece 36, like this, when rotating plate 35 rotates relative curb plate 32, the cable can not be dragged by rotating plate 35, so can realize rotating plate 35's rotation operation under the condition that need not to demolish the cable, the maintenance work of the core structure of further being convenient for.

The binding member 36 is spaced apart from the push-pull plate 33, and in practice, an operator can set a predetermined distance between the binding member 36 and the push-pull plate 33 such that the distance between the push-pull plate 33 and the binding member 36 is greater than the height of the first circuit board assembly 4, such that the binding member 36 does not interfere with the push-pull movement of the push-pull plate 33.

In one embodiment, referring to fig. 4, 6-8, the wire tie 36 is connected between the two side plates 32. By adopting the above technical scheme, the cable tie 36 is connected between the two side plates 32, and the extending direction of the cable tie 36 is the same as that of the rotating plate 35, so that the cable tie 36 can better tie the cables extending from the positions of the second circuit board assembly 5 on the rotating plate 35, and the reasonable layout and the tying of the cables are facilitated.

In one embodiment, referring to fig. 7 and 8, the two rotating plates 35 are provided, and both rotating plates 35 can rotate relative to the side plate 32 to open the second floor space or close the second floor space together. Through adopting above-mentioned technical scheme, can rotate one or two rotor plates 35 according to actual demand to open second floor space, make power component 2, first circuit board subassembly 4's maintenance work more nimble.

In an embodiment, please refer to fig. 9, the movement structure further includes a capacitor module 6, and the capacitor module 6 is electrically connected to the rectifier module 22 and located outside the case 3.

Optionally, in this embodiment, the capacitor module 6 is externally hung on the chassis 3 and is located outside the chassis 3; of course, the capacitor modules 6 may be disposed to be spaced apart from the chassis 3 according to actual requirements.

The capacitor module 6 may be electrically connected to the rectifier module 22 directly through a wire, or may be electrically connected to the rectifier module 22 through the first circuit board assembly 4 or the second circuit board assembly 5.

In a conventional scheme, a capacitor module 6 is installed in a case 3, so that the layout of the capacitor module 6, a power assembly 2, a first circuit board assembly 4 and a second circuit board assembly 5 is difficult to rationalize, the size of the whole machine core structure is very large, and the maintenance work of the machine core structure is very complicated and time-consuming; in the embodiment, by adopting the above technical scheme, the capacitor module 6 is arranged outside the case 3, so that the overall size of the movement structure can be effectively reduced, the installation and maintenance work of the movement structure is facilitated, and the installation and maintenance cost of the movement structure is reduced.

Based on the above concept, the present embodiment further provides a frequency converter, which includes a core structure. The core structure in this embodiment is the same as that in the previous embodiment, and please refer to the related description of the core structure in the previous embodiment, which is not repeated herein. Through adopting the design to the core structure in this embodiment for the overall arrangement of core structure is rationalized more, has solved contravariant module 21 and rectifier module 22 and has leaded to the unreasonable problem of overall arrangement because of the size phase difference is great, helps guaranteeing the space utilization of converter, reduces the part cost of converter.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A core structure, comprising:

the radiator is provided with a substrate on one side;

the inversion module is arranged on the substrate and is arranged in an L shape;

and the rectification module and the inversion module are arranged on the same side of the substrate and are positioned at the L-shaped opening of the inversion module.

2. The movement structure according to claim 1, wherein the movement structure further comprises a case disposed on the substrate, and the inverter module and the rectifier module are both accommodated in the case.

3. The movement structure of claim 2, wherein the case comprises:

the frame is arranged on the substrate and is arranged on the peripheries of the inversion module and the rectification module;

the two side plates are respectively arranged on two opposite sides of the frame;

the push-pull plate is arranged between the two side plates and can be pushed and pulled to move relative to the side plates so as to switch between a first state and a second state; the case is divided into a first layer space and a second layer space by the push-pull plate in the first state, the inversion module and the rectification module are both positioned in the first layer space, and the first layer space is opened by the push-pull plate in the second state;

the movement structure further comprises a first circuit board assembly arranged on the push-pull plate.

4. The movement structure according to claim 3, wherein the push-pull plates are provided in two, and the two push-pull plates are sequentially distributed along the push-pull direction and can push and pull oppositely or back oppositely.

5. The movement structure according to claim 3, wherein the opposite sides of the two side plates are respectively provided with an adapter frame, and the two ends of the push-pull plate are respectively arranged on the two adapter frames and can be pushed and pulled on the adapter frames.

6. The movement structure according to claim 3, wherein the casing further comprises a rotating plate, and the base plate, the push-pull plate and the rotating plate are sequentially spaced; one side of the rotating plate is hinged to the two side plates, the other side of the rotating plate is detachably locked to the side plates or the frame, and the rotating plate can open or close the second layer of space when rotating relative to the side plates;

the movement structure further comprises a second circuit board assembly arranged on the rotating plate.

7. The movement structure according to claim 6, wherein the side plate and/or the frame is provided with a binding member, and the binding member is positioned on one side of the rotating plate hinged to the side plate and is respectively spaced from the rotating plate and the push-pull plate.

8. The movement structure of claim 7, wherein the cable tie member is connected between the two side plates.

9. The movement structure according to any one of claims 2 to 8, further comprising a capacitance module electrically connected to the rectification module and located outside the casing.

10. A frequency converter, characterized in that it comprises a movement structure according to any one of claims 1 to 9.

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