CN217883205U - Frequency converter ventilation assembly and frequency converter - Google Patents

Abstract

The utility model provides a converter ventilation assembly and converter, converter ventilation assembly includes: the cabinet door comprises a groove and a first ventilation opening penetrating through the bottom of the groove, and an opening of the groove faces the outer side of the cabinet door; the filtering part is arranged in the groove; and the positioning component is detachably connected with the cabinet door and used for preventing the filtering part from being separated from the groove. Therefore, the cabinet door is provided with the groove with the outward opening and the positioning assembly, so that a user can execute the replacement operation of the filtering part outside the cabinet door, and the steps of controlling the frequency converter to be powered off and switching on and off the frequency converter door body are omitted. Thereby overcoming the technical drawbacks of the related art as described above.

Description

Frequency converter ventilation assembly and frequency converter

Technical Field

The utility model relates to a converter technical field particularly, relates to a converter ventilation assembly and converter.

Background

In the correlation technique, the filter screen on the converter need can accomplish the dismouting after opening the converter cabinet door, changes the filter screen still needs the control converter in advance to shut down temporarily. The frequency converter has the technical defects of high difficulty in replacing the filter screen, complex replacement operation and influence on the normal work of the frequency converter.

Therefore, how to overcome the above technical defects becomes a technical problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least.

Therefore, the utility model discloses a first aspect provides a converter ventilation subassembly.

The second aspect of the utility model provides a frequency converter.

In view of this, the utility model discloses the first aspect provides a converter ventilation assembly, and converter ventilation assembly includes: the cabinet door comprises a groove and a first ventilation opening penetrating through the bottom of the groove, and an opening of the groove faces the outer side of the cabinet door; the filtering part is arranged in the groove; and the positioning component is detachably connected with the cabinet door and used for preventing the filtering part from being separated from the groove.

This application has prescribed a limit to a converter ventilation assembly, and converter ventilation assembly includes the cabinet door, is formed with the first vent of intercommunication cabinet door inside and outside on the cabinet door, and the cabinet door inboard is used for arranging the fan that generates the heat dissipation air current. After the fan is opened, outside air current discharges outside the converter after rising the temperature through the contact transmission in to the cabinet door is inboard via first vent suction to make produced heat behind the electrical structure circular telegram in the converter can be derived outside the converter by the heat dissipation air current that gets into via first vent, thereby satisfy the heat dissipation demand of the inside electrical structure of converter with the help of first vent.

The above description exemplifies that the first ventilation opening is the air inlet, and the first ventilation opening can also be the air outlet, and this technical scheme is not rigidly limited.

On this basis, first vent department is provided with the filter house, and the filter house is fixed on the cabinet door for filter the impurity in the radiating air current of first vent of flowing through, produce short circuit, open circuit scheduling problem because of contact impurity with the electrical apparatus structure. Meanwhile, the filtering part can also absorb moisture in the heat dissipation airflow so as to reduce the possibility of corrosion and short circuit of the electric appliance structure in the cabinet door.

Among the correlation technique, the filter screen on the converter is installed at a body inboard more, when needing to be changed the filter screen, needs the user to open the converter door body earlier, just can visit the converter after that and change the operation in order to accomplish the filter screen, and the degree of difficulty that should visit the formula operation is great, is unfavorable for the quick replacement of filter screen. And, for avoiding appearing the electric shock problem, the user needs the electrical parts outage in the control converter earlier before changing the filter screen, leads to the filter screen to change the normal work that the operation has influenced the converter. The frequency converter in the related technology has the technical defects that the difficulty of replacing the filter screen is high, the machine needs to be stopped when the filter screen is replaced, and the practicability is poor.

To this, still be formed with the recess on the cabinet door that this application was injectd, the opening of recess is towards cabinet door exterior space, and first vent runs through the bottom of recess. The shape of the groove is matched with the shape of the outer contour of the filter part, so that the filter part can be arranged in the groove. On this basis, converter ventilation unit still is provided with locating component, and locating component can dismantle with the cabinet door and be connected, and locating component can provide the location to the filter house of installing in the recess to fix the filter house in the recess, avoid the filter house to deviate from in by the recess. When the filter part needs to be replaced, the positioning assembly is detached from the cabinet door, then the filter part is taken out from the groove, and finally, a new filter part is pushed into the groove and the filter assembly is installed again, so that the replacement operation can be completed.

Therefore, the cabinet door is provided with the groove with the outward opening and the positioning assembly, so that a user can execute the replacement operation of the filtering part outside the cabinet door, and the steps of controlling the frequency converter to be powered off and opening and closing the cabinet door are omitted. Thereby overcoming the technical drawbacks of the related art as described above. And then realize optimizing filter house location structure overall arrangement, simplify the filter house dismouting step, reduce the filter house dismouting degree of difficulty, satisfy not shut down dismouting filter house demand, provide the technological effect of convenient condition for the user.

In particular, a plate-like structure may be selected as the positioning member to prevent the filter portion from coming out through the opening of the covering groove. The strip-shaped structure can also be selected as a positioning component, for example, a plurality of rod pieces are transversely arranged at the opening of the groove, so that the filtering part is prevented from falling off by blocking the opening of the groove. The buckling structure can be selected as a positioning component, when the buckling structure is installed on the cabinet door, the tail end of the buckling structure is abutted against the filtering part, and the filtering part is pressed in the groove. Therefore, the technical scheme does not rigidly limit the specific structural form of the positioning assembly, and the positioning requirement and the detachable requirement can be met.

Furthermore, a filtering part is prepared by selecting filtering cotton, and the filtering cotton has excellent filtering effect and lower density.

Additionally, the utility model provides an above-mentioned converter ventilation subassembly can also have following additional technical characterstic:

in the above technical solution, the positioning assembly includes: the cover plate is detachably connected with the cabinet door, covers the opening of the groove and comprises a second ventilation opening.

In this embodiment, the structure of the positioning member is explained. Specifically, the positioning assembly comprises a cover plate, and a second ventilation opening is formed in the cover plate. The cover plate is detachably connected with the cabinet door, and after the cover plate is assembled, the cover plate covers the opening of the groove to prevent the filtering part from being separated through the shielding opening. In the working process, the heat dissipation airflow penetrates through the filtering part after flowing into the second ventilation opening, and enters the cabinet door through the first ventilation opening after impurities contained in the heat dissipation airflow are filtered out through the filtering part, so that heat dissipation is performed on an electric appliance structure in the cabinet door.

Through setting up the apron, can reduce the possibility of filter house dislocation through the increase to the recess open-ended area of sheltering from promotes the location effect to the filter house to promote the filter effect of filter house. Simultaneously, the setting shelters from the apron of filter house and can avoid external recess and filter house to influence the wholeness of converter ventilation subassembly outward appearance, reduces the abrupt feel of converter ventilation subassembly outward appearance.

In any of the above technical solutions, the positioning assembly further includes: the connecting part is arranged on the cover plate and is clamped with the cabinet door.

In the technical scheme, the connection mode between the positioning assembly and the cabinet door is explained. Specifically, locating component still is provided with connecting portion, and connecting portion are fixed on the apron, and connecting portion can the joint on the cabinet door to through the fixed apron of joint cooperation. Correspondingly, when the filter part needs to be replaced, the cover plate and the filter part can be detached by releasing the clamping fit.

The joint connected mode possesses the advantage that the structure complexity is low, can compress the manufacturing cost of converter ventilation subassembly on the basis that satisfies the demand of can dismantling. And the joint structure has the advantage of simple operation, is favorable to reducing the dismouting degree of difficulty of filter portion.

In any one of the above technical scheme, the cabinet door still includes the draw-in groove, draw-in groove and recess intercommunication, and connecting portion include: the clamping hook is connected with the cover plate in a sliding mode and is provided with a first position and a second position on the cover plate; when the hook is configured to be at the first position, part of the hook is positioned in the slot; the hook is configured to be located outside the slot when in the second position.

In this technical scheme, accept aforementioned technical scheme, connecting portion include the trip, are provided with the spout on the apron, and the trip is installed in the spout to make the trip can slide along the extending direction of spout. The cabinet door is provided with a clamping groove, the clamping groove is positioned in the groove, and the position of the clamping groove corresponds to the position of the clamping hook.

On the basis, the clamping hook is provided with a first position and a second position on the cover plate, the front end of the clamping hook extends out under the first position, and the front end of the clamping hook retracts under the second position correspondingly. In the process of installing the cover plate, the clamping hook is firstly adjusted to the second position, then the clamping hook is aligned to the clamping groove, and finally the clamping hook is adjusted to the first position, so that the front end of the clamping hook can be clamped into the clamping groove, and the cover plate is fixed on the cabinet door. Correspondingly, when the cover plate needs to be disassembled, the clamping hook is adjusted from the first position to the second position, so that the front end of the clamping hook is withdrawn from the clamping groove, and a user can disassemble the cover plate immediately.

In any of the above technical solutions, the number of the hooks is multiple, two hooks are a group, and the connecting part includes at least one group of hooks; two hooks in the same group are symmetrically arranged on the cover plate.

In the technical scheme, a plurality of hooks are arranged on the cover plate, specifically two hooks are in a group, and at least one group of hooks are arranged on the same cover plate. On the basis, two clamping hooks in the same group are symmetrically arranged on the left side and the right side of the cover plate.

The cover plate can be supported from the left side and the right side of the cover plate by taking the two hooks as a group and symmetrically distributing the two hooks, so that the possibility of oblique dislocation of the cover plate is reduced. The positioning effect of the cover plate can be enhanced by increasing the number of the clamping hooks. Wherein, under the condition that connecting portion include the multiunit trip, the multiunit trip sets up at the direction of height of apron on the interval to enlarge joint complex effect region, strengthen the positioning accuracy and the location reliability of apron.

In any one of the above technical solutions, the filtering portion includes an avoiding groove, and the avoiding groove is used for avoiding the hook.

In the technical scheme, the filter partial region is sunken to form the avoidance groove, the avoidance groove corresponds to the hook in position, and the avoidance groove can provide a movement space for the hook, so that the hook can adjust the clamping state through reciprocating movement. Thereby realizing the technical effects of improving the structural compactness and reducing the failure rate of the clamping hook.

Wherein, first vent in the recess with dodge groove dislocation set to avoid the heat dissipation air current directly to get into in the cabinet door under the filterable circumstances of filter house, and then promote and filter validity, realize the technological effect who prolongs inside electrical apparatus structure life-span.

In any one of the above technical solutions, the frequency converter ventilation assembly further includes: the elastic piece is connected with the cover plate and the connecting portion and used for driving the connecting portion to be clamped on the cabinet door.

In this technical scheme, converter ventilation subassembly still is provided with the elastic component, and the first end and the apron of elastic component are connected, and the second end and the connecting portion of elastic component are connected. In the process of installing the cover plate, when the cover plate is pushed to a preset position, the elastic piece can drive the connecting part to be clamped into the cabinet door through the elasticity of the elastic piece, so that the cover plate can be automatically connected with the cabinet door at the preset position.

The motion mode of concrete connecting portion includes slip and rotation to connecting portion and apron sliding connection are the example: when the clamping hook slides from the first position to the second position under the action of external force, the elastic piece deforms and accumulates elastic potential energy. After the external force action is removed, the elastic piece releases elastic potential energy to drive the clamping hook to reset to the first position.

In the process of installing the cover plate, the clamping hook is abutted against the side wall of the groove, and then the cover plate is pressed until the front end of the clamping hook is automatically ejected into the clamping groove under the action of the elastic piece. Otherwise, in the process of detaching the cover plate, the clamping hook is pulled to the second position, and the cover plate is detached immediately.

Take the connecting part and the cover plate to be rotationally connected as an example: the clamping hook can be clamped into the clamping groove in the first posture, and quits the clamping groove in the second posture. When a user twists the hook from the first posture to the second posture by means of the knob, the elastic piece deforms and accumulates elastic potential energy, and after the external force action is removed, the elastic piece releases the elastic potential energy to drive the hook to reset to the first posture.

In the process of installing the cover plate, the end part of the clamping hook is abutted against the side wall of the groove, and then the cover plate is pressed until the front end of the clamping hook is automatically screwed into the clamping groove under the action of the elastic piece. Otherwise, in the process of disassembling the cover plate, the clamping hook is firstly rotated to the second posture, and the cover plate is immediately disassembled.

Therefore, the connecting part can be automatically connected with the cabinet door by arranging the elastic part, the operation that a user autonomously judges the position of the connecting part and clamps the connecting part is omitted, the cover plate assembly difficulty is reduced, and the technical effect of providing convenience for the user is achieved.

In any of the above technical solutions, the elastic member is an extension spring.

In this technical scheme, the elastic component is extension spring, and extension spring sets up in the clearance between trip and apron, and at the in-process that the apron moved to the second position by the primary importance, extension spring's length is compelled to increase, and on the contrary the extension spring draws the trip to the primary importance after removing external acting force.

Extension spring is the standard part, and purchase cost in batches is lower, consequently selects extension spring as the elastic component can compress the cost of converter ventilation subassembly on the basis that satisfies trip automatic re-setting demand, and then promotes product competitiveness.

In any of the above technical solutions, the connection part further includes: the handle is connected with the clamping hook.

In this technical scheme, converter ventilation subassembly still is provided with the handle, and the handle meets with the trip, and the handle exposes in the apron front side. Be provided with the slip sign on the handle, the user can know the unblock direction of trip according to the direction that the slip sign instructed, and the in-process user of dismantling the apron switches the trip to the second position through promoting the handle. Can provide the impetus for the user through setting up the handle to for the user operation trip condition of facilitating, and then reduce the dismantlement degree of difficulty of apron.

In any of the above technical solutions, the cover plate includes: the connecting part is arranged on the frame; the grid is arranged in the frame, and the second ventilation opening penetrates through the grid.

In this embodiment, a structure of the cover plate will be described. Specifically, the cover plate comprises a frame and a grating, the grating is a main body structure of the cover plate, the second ventilation openings are formed among the grating plates, and air flow can flow into the grooves through gaps among the grating plates. The frame is used for positioning and supporting the grating, and can also play a role in protecting the grating and reducing the deformation of the grating.

In any one of the above technical solutions, the frequency converter ventilation assembly further includes: and the sealing element is arranged on the cover plate and used for sealing a gap between the cover plate and the cabinet door.

In this technical scheme, converter ventilation subassembly still is provided with the sealing member, and the sealing member setting is between apron and cabinet door for seal the gap between apron and the cabinet door. Through setting up the sealing member, can block the liquid that flows along the shell surface, avoid this part liquid to flow into in the cabinet door by the gap between apron and the cabinet door to protect the electrical apparatus structure in the cabinet door. Therefore, the safety and the reliability of the ventilation assembly of the frequency converter can be improved by arranging the sealing element, and the fault rate of the ventilation assembly of the frequency converter is reduced.

In any of the above technical solutions, the cover plate includes a mounting groove, the mounting groove is annular and surrounds the opening of the groove, and the sealing member is embedded in the groove.

In this technical scheme, accept aforementioned technical scheme, the frame is the rectangle frame, and is formed with the mounting groove on the frame. The sealing element is a sealing ring, and the sealing ring is clamped into the mounting groove to complete assembly. After the cover plate is mounted to the cabinet door, the sealing ring surrounds the opening of the groove to block liquid flowing along the surface of the cabinet door around the opening of the groove. And then realize enlarging the sealing member coverage, promote sealed effect, strengthen the technical effect of converter ventilation assembly security and reliability.

In any one of the above technical solutions, the cabinet door includes: a door panel provided with an opening having a groove; the surrounding edge is connected with the door panel and surrounds the opening of the groove; the screen panel is connected with the surrounding edge, and the surrounding edge and the screen panel enclose a groove.

In this technical scheme, the structure of the cabinet door is explained. Specifically, the cabinet door includes a door panel, a surrounding edge and a mesh enclosure. The door plate is provided with an opening of the groove, the first end of the surrounding edge is connected with the opening, and the surrounding edge surrounds the opening. The second edge of the surrounding edge is connected with the mesh enclosure, and the mesh on the mesh enclosure is the first ventilation opening. In the assembling process, the first ends of the surrounding edges are welded on the cabinet door, so that the grooves can be defined in a surrounding mode. Wherein, the draw-in groove sets up on the surrounding edge, trip and surrounding edge joint. Through setting up this surrounding edge and screen panel structure, can form the recess towards the cabinet door outside on the cabinet door to make the user can carry out the dismouting operation of filter house under the condition of not opening the cabinet door, and then realize reducing the filter house and change the degree of difficulty, provide the technological effect of the condition of facilitating for the user.

A second aspect of the present invention provides a frequency converter, wherein the frequency converter comprises the ventilation assembly of the frequency converter according to any one of the above technical solutions; the cabinet door is arranged in the shell in an openable and closable manner and is used for opening or closing the cavity.

In this technical solution, a frequency converter is proposed to which the frequency converter ventilation assembly of any of the above technical solutions is applied. Therefore, the frequency converter has the advantages of the frequency converter ventilation assembly in any technical scheme, the technical effect which can be realized by the frequency converter ventilation assembly in any technical scheme can be realized, and repeated description is omitted here for avoiding repetition.

On this basis, the converter still includes the casing, and the cavity is enclosed out to the casing, and electrical apparatus structure installs in the casing. The shell is provided with an electrical interface, and the electrical appliance structure is connected with an external circuit through the electrical interface. The cabinet door is openably and closably mounted on the housing for opening or closing the housing. The back of the shell is provided with a third ventilation opening, and heat dissipation airflow entering the shell from the cabinet door penetrates through the cavity and is then discharged from the back side of the shell. Furthermore, third ventilation openings can be arranged on the left side, the right side and/or the upper side and the lower side of the shell, and therefore the coverage range of the heat dissipation airflow is expanded.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 shows one of the structural schematics of a frequency converter ventilation assembly according to an embodiment of the present invention;

fig. 2 shows one of the structural schematics of the cover plate according to an embodiment of the invention;

fig. 3 shows one of the schematic structural views of a filter house according to one embodiment of the invention;

fig. 4 shows a second schematic structural view of a frequency converter ventilation assembly according to an embodiment of the invention;

fig. 5 shows a second schematic structural view of a cover plate according to an embodiment of the present invention;

fig. 6 shows a second schematic structural view of a filter house according to an embodiment of the invention;

fig. 7 shows a third schematic structural view of a frequency converter ventilation assembly according to an embodiment of the present invention;

fig. 8 shows a third schematic structural diagram of a cover plate according to an embodiment of the present invention;

fig. 9 shows a fourth schematic structural diagram of a frequency converter ventilation assembly according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 9 is:

100 converter ventilation subassembly, 110 cabinet doors, 111 door plant, 112 recess, 114 first vent, 115 draw-in groove, 118 surrounding edge, 119 screen panel, 120 filter house, 122 dodge the groove, 130 locating component, 132 apron, 1322 frame, 1324 grid, 1326 mounting groove, 134 connecting portion, 1342 trip, 1344 handle, 140 elastic component, 150 sealing member.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

Frequency converter ventilation assemblies and frequency converters in accordance with some embodiments of the present invention are described below with reference to fig. 1-9.

As shown in fig. 1, 4 and 9, an embodiment of the present invention provides a ventilation assembly 100 for a frequency converter, where the ventilation assembly 100 for a frequency converter includes: a cabinet door 110 including a groove 112 and a first vent 114 penetrating the bottom of the groove 112, an opening of the groove 112 facing the outside of the cabinet door 110; a filter 120 disposed in the groove 112; and a positioning assembly 130 detachably coupled to the cabinet door 110 for preventing the filter part 120 from being removed from the recess 112.

In fig. 1 and 4, arrow a indicates the outside direction of the cabinet door 110, and arrow b indicates the inside direction of the cabinet door 110.

This application has defined a converter ventilation subassembly 100, and converter ventilation subassembly 100 includes cabinet door 110, is formed with the first vent 114 of the inside and outside both sides of intercommunication cabinet door on the cabinet door 110, and the cabinet door 110 is inboard to be used for arranging the fan that generates the heat dissipation air current. After the fan is opened, outside air current via first vent 114 suction to the cabinet door inboard, discharge outside the converter after rising the temperature through the contact transmission to the produced heat can be derived outside the converter by the heat dissipation air current that gets into via first vent 114 after making electrical structure circular telegram, thereby satisfies the heat dissipation demand of the inside electrical structure of converter with the help of first vent 114.

The above description takes the first ventilation opening 114 as an air inlet for example, and the first ventilation opening 114 can also be used as an air outlet, which is not limited to this embodiment.

On the basis, the first ventilation opening 114 is provided with a filtering portion 120, and the filtering portion 120 is fixed on the cabinet door 110 and is used for filtering out impurities in the heat dissipation airflow flowing through the first ventilation opening 114, so as to avoid the problems of short circuit, circuit breaking and the like caused by contact of impurities with the electrical appliance structure. Meanwhile, the filtering part 120 can also absorb moisture in the heat dissipation airflow to reduce the possibility of corrosion and short circuit of the internal electrical appliance structure of the cabinet door 110.

Among the correlation technique, the filter screen on the converter is installed at a body inboard more, when needing to be changed the filter screen, needs the user to open the converter door body earlier, just can visit the converter after it and change the operation in order to accomplish the filter screen, and the degree of difficulty that should visit the formula operation is great, is unfavorable for the quick replacement of filter screen. And, for avoiding appearing the electric shock problem, the user needs the electrical parts outage in the control converter earlier before changing the filter screen, leads to the filter screen to change the normal work that the operation has influenced the converter. The frequency converter in the related technology has the technical defects that the difficulty of replacing the filter screen is high, the machine needs to be stopped when the filter screen is replaced, and the practicability is poor.

In this regard, a groove 112 is further formed on the cabinet door 110 defined in the present application, an opening of the groove 112 faces an external space of the cabinet door 110, and the first ventilation opening 114 penetrates through a bottom of the groove 112. Wherein the shape of the groove 112 is adapted to the outer contour shape of the filter part 120, so that the filter part 120 can be installed in the groove 112. On this basis, converter ventilation subassembly 100 still is provided with locating component 130, and locating component 130 can dismantle with cabinet door 110 and be connected, and locating component 130 can provide the location to the filter house 120 of installing in recess 112 to fix filter house 120 in recess 112, avoid filter house 120 to deviate from by in the recess 112. When the filter part 120 needs to be replaced, the positioning assembly 130 is detached from the cabinet door 110, the filter part 120 is taken out from the groove 112, and finally, a new filter part 120 is pushed into the groove 112 and the filter assembly is reinstalled, thereby completing the replacement operation.

Therefore, the groove 112 with the outward opening is formed in the cabinet door 110, and the positioning assembly 130 is arranged in a matching manner, so that a user can perform the operation of replacing the filtering part 120 on the outer side of the cabinet door 110, and the steps of controlling the power-off of the frequency converter and opening and closing the door body of the frequency converter are omitted. Thereby overcoming the technical drawbacks of the related art as described above. And then realize optimizing filter 120 location structural configuration, simplify the filter 120 dismouting step, reduce the filter 120 dismouting degree of difficulty, satisfy the dismouting filter 120 demand of not shutting down, provide the technical effect of convenient condition for the user.

Specifically, a plate-shaped structure may be selected as the positioning member 130 to prevent the filter part 120 from coming out through the opening of the covering groove 112. A strip-shaped structure may also be selected as the positioning component 130, for example, a plurality of bars are transversely arranged at the opening of the groove 112 to block the filter part 120 from falling out by blocking the opening of the groove 112. A fastening structure may also be selected as the positioning component 130, and when the fastening structure is installed on the cabinet door 110, the end of the fastening structure abuts against the filter part 120, so as to press the filter part 120 into the groove 112. In this regard, the specific structural form of the positioning assembly 130 is not rigidly limited in this embodiment, and the positioning requirement and the detachable requirement are satisfied.

Further, the filter portion 120 is prepared by selecting filter cotton, and the filter cotton has excellent filtering effect and low density.

As shown in fig. 2, 5 and 8, in the above embodiment, the positioning assembly 130 includes: and the cover plate 132 is detachably connected with the cabinet door 110, covers the opening of the groove 112, and the cover plate 132 comprises a second ventilation opening.

In this embodiment, the structure of the positioning assembly 130 is expanded. Specifically, the positioning assembly 130 includes a cover plate 132, and the cover plate 132 has a second ventilation opening formed therein. The cover plate 132 is detachably connected to the cabinet door 110, and after the cover plate 132 is assembled, the cover plate 132 covers the opening of the recess 112 to block the filter part 120 from falling out by blocking the opening. During operation, the heat dissipation airflow flows into the second ventilation opening and then passes through the filtering portion 120, and impurities contained in the heat dissipation airflow are filtered out by the filtering portion 120 and then enter the cabinet door 110 through the first ventilation opening 114, so as to dissipate heat of the electrical structure in the cabinet door 110.

Through setting up apron 132, can promote the location effect to filter house 120 through the increase to the open-ended area that shelters from of recess 112, reduce the possibility of filter house 120 dislocation to promote filter house 120's filter effect. Meanwhile, the cover plate 132 for shielding the filter part 120 is arranged to prevent the external groove 112 and the filter part 120 from affecting the appearance integrity of the ventilation assembly 100 of the frequency converter, so as to reduce the appearance obtrusiveness of the ventilation assembly 100 of the frequency converter.

As shown in fig. 8 and 9, in any of the above embodiments, the positioning assembly 130 further comprises: and a connecting part 134 arranged on the cover plate 132 and clamped with the cabinet door 110.

In this embodiment, the connection between the positioning assembly 130 and the cabinet door 110 is explained. Specifically, the positioning assembly 130 is further provided with a connecting portion 134, the connecting portion 134 is fixed on the cover plate 132, and the connecting portion 134 can be clamped on the cabinet door 110 to fix the cover plate 132 through a clamping fit. Correspondingly, when the filter unit 120 needs to be replaced, the cover plate 132 and the filter unit 120 can be removed by releasing the snap fit.

The joint connected mode possesses the advantage that the structure complexity is low, can compress the manufacturing cost of converter ventilation subassembly 100 on the basis that satisfies the demand of can dismantling. And the clamping structure has the advantage of simple operation, and is favorable for reducing the disassembly and assembly difficulty of the filtering part 120.

As shown in fig. 1, 4, 7 and 9, in any of the above embodiments, the cabinet door 110 further includes a card slot 115, the card slot 115 is communicated with the groove 112, and the connecting portion 134 includes: a hook 1342 slidably connected to the cover 132, the hook 1342 having a first position and a second position on the cover 132; with the catch 1342 configured in the first position, a portion of the catch 1342 is located within the slot 115; with the catch 1342 configured in the second position, the catch 1342 is located outside the slot 115.

In this embodiment, the connecting portion 134 includes a hook 1342, the cover plate 132 is provided with a sliding slot, and the hook 1342 is installed in the sliding slot, so that the hook 1342 can slide along the extending direction of the sliding slot. A clamping groove 115 is formed in the cabinet door 110, the clamping groove 115 is located in the groove 112, and the position of the clamping groove 115 corresponds to the position of the hook 1342.

On the basis, the hook 1342 has a first position and a second position on the cover plate 132, wherein the front end of the hook 1342 extends out in the first position, and the front end of the hook 1342 retracts in the second position. In the process of installing the cover plate 132, the hook 1342 is first adjusted to the second position, then the hook 1342 is aligned with the slot 115, and finally the hook 1342 is adjusted to the first position, so that the front end of the hook 1342 is inserted into the slot 115, so as to fix the cover plate 132 on the cabinet door 110. Correspondingly, when the cover plate 132 needs to be detached, the hook 1342 is adjusted from the first position to the second position, so that the front end of the hook 1342 is withdrawn from the slot 115, and the cover plate 132 can be detached by the user.

As shown in fig. 2, 5 and 8, in any of the above embodiments, there are a plurality of hooks 1342, two hooks 1342 form a group, and the connecting portion 134 includes at least one group of hooks 1342; two hooks 1342 in the same group are symmetrically disposed on the cover plate 132.

In this embodiment, the cover 132 is provided with a plurality of hooks 1342, specifically, two hooks 1342 form a group, and at least one group of hooks 1342 is provided on the same cover 132. On this basis, two hooks 1342 of the same group are symmetrically disposed on the left and right sides of the cover plate 132.

By using two hooks 1342 as a set and symmetrically distributing the two hooks 1342, the cover 132 can be supported from the left and right sides of the cover 132, so as to reduce the possibility of the cover 132 being skewed and dislocated. The positioning effect of the cover plate 132 can be enhanced by increasing the number of the hooks 1342. Wherein, under the condition that connecting portion 134 includes multiunit trip 1342, multiunit trip 1342 sets up at the direction of height of apron 132 interval to enlarge the effect region of joint cooperation, strengthen the positioning accuracy and the positioning reliability of apron 132.

As shown in fig. 3 and 6, in any of the above embodiments, the filter portion 120 includes an avoiding groove 122, and the avoiding groove 122 is used for avoiding the hook 1342.

In this embodiment, a part of the area of the filter part 120 is recessed to form an avoidance groove 122, the position of the avoidance groove 122 corresponds to the position of the hook 1342, and the avoidance groove 122 is configured to provide a movement space for the hook 1342, so that the hook 1342 can adjust the clamping state through reciprocating motion. Thereby realizing the technical effects of improving the structural compactness and reducing the failure rate of the hook 1342.

The first ventilation opening 114 and the avoiding groove 122 in the groove 112 are arranged in a staggered manner, so that the heat dissipation airflow is prevented from directly entering the cabinet door 110 without being filtered by the filtering portion 120, the filtering effectiveness is further improved, and the technical effect of prolonging the service life of the internal electrical appliance structure is achieved.

As shown in fig. 9, in any of the above embodiments, the frequency converter ventilation assembly 100 further comprises: the elastic member 140 is connected to the cover plate 132 and the connecting portion 134, and is used for driving the connecting portion 134 to be clamped to the cabinet door 110.

In this embodiment, the transducer ventilation assembly 100 is further provided with a resilient member 140, a first end of the resilient member 140 is connected to the cover plate 132, and a second end of the resilient member 140 is connected to the connecting portion 134. In the process of installing the cover plate 132, when the cover plate 132 is pushed to a predetermined position, the elastic member 140 can drive the connecting portion 134 to be clamped into the cabinet door 110 by its own elastic force, so that the cover plate 132 can be automatically connected to the cabinet door 110 at the predetermined position.

The movement mode of the connecting portion 134 includes sliding and rotating, taking the sliding connection of the connecting portion 134 and the cover plate 132 as an example:

when the hook 1342 moves from the first position to the second position under the action of an external force, the elastic member 140 deforms and accumulates elastic potential energy. After the external force is removed, the elastic member 140 releases the elastic potential energy to drive the hook 1342 to reset to the first position.

In the process of installing the cover plate 132, the hook 1342 is abutted against the sidewall of the groove 112, and then the cover plate 132 is pressed until the front end of the hook 1342 is automatically pushed into the slot 115 under the action of the elastic member 140. Conversely, in the process of detaching the cover 132, the hook 1342 is pulled to the second position, and then the cover 132 is detached.

Taking the connection portion 134 and the cover plate 132 rotatably connected as an example: the catch 1342 is capable of snapping into the slot 115 in a first posture and exiting the slot 115 in a second posture. When the user twists the hook 1342 from the first posture to the second posture by means of the knob, the elastic member 140 deforms and accumulates elastic potential energy, and after the external force action is removed, the elastic potential energy is released by the elastic member 140 to drive the hook 1342 to return to the first posture.

In the process of installing the cover plate 132, the end of the hook 1342 is now abutted against the sidewall of the groove 112, and then the cover plate 132 is pressed until the front end of the hook 1342 is automatically screwed into the slot 115 under the action of the elastic member 140. Conversely, in the process of detaching the cover plate 132, the hook 1342 is rotated to the second posture, and the cover plate 132 is detached immediately.

Therefore, the connecting part 134 can be automatically connected with the cabinet door 110 by arranging the elastic part 140, so that the operation that a user autonomously judges the position of the connecting part 134 and clamps the connecting part 134 is avoided, the assembly difficulty of the cover plate 132 is reduced, and the convenience condition is provided for the user.

In any of the above embodiments, the elastic member 140 is an extension spring.

In this embodiment, the elastic member 140 is an extension spring disposed in a gap between the hook 1342 and the cover 132, and the length of the extension spring is forced to increase during the movement of the cover 132 from the first position to the second position, whereas the extension spring pulls the hook 1342 to the first position after the external force is removed.

Extension spring is the standard part, and the purchase cost in batches is lower, consequently selects extension spring as elastic component 140 can compress the cost of converter ventilation subassembly 100 on the basis that satisfies trip 1342 automatic re-setting demand, and then promotes product competitiveness.

As shown in fig. 9, in any of the above embodiments, the connection portion 134 further includes: the handle 1344 is connected to the hook 1342.

In this embodiment, the transducer ventilation assembly 100 is further provided with a handle 1344, the handle 1344 is connected with the hook 1342, and the handle 1344 is exposed at the front side of the cover plate 132. The handle 1344 is provided with a sliding identifier, so that a user can know the unlocking direction of the hook 1342 according to the direction indicated by the sliding identifier, and the user can switch the hook 1342 to the second position by pushing the handle 1344 in the process of detaching the cover plate 132. The handle 1344 can provide a force application point for a user, so that a convenient condition is provided for the user to operate the hook 1342, and the difficulty in detaching the cover plate 132 is reduced.

In any of the above embodiments, the handle 1344 and the hook 1342 are a unitary structure.

In this embodiment, the hook 1342 and the handle 1344 may be formed in a single body structure by casting or the like. The integrated hook 1342 and handle 1344 can reduce the process complexity and the processing cost. On the other hand, no structural section exists between the integrated hook 1342 and the handle 1344, the structural strength is high, the service lives of the hook 1342 and the handle 1344 are prolonged, and the possibility that the cover plate 132 cannot be detached due to the breakage of the handle 1344 is reduced.

As shown in fig. 4 and 7, in any of the above embodiments, the cover plate 132 includes: a frame 1322, the connecting portion 134 being provided to the frame 1322; grill 1324 is positioned within frame 1322 and the second vent is positioned in grill 1324.

In this embodiment, the structure of the cover plate 132 is explained. Specifically, the cover plate 132 includes a frame 1322 and a grill 1324, and the grill 1324 is a main structure of the cover plate 132, and the second ventilation opening is formed between the grills, so that the air flow can flow into the groove 112 through the gap between the grills. Frame 1322 serves to position and support grill 1324 and also serves to protect grill 1324 and reduce deformation of grill 1324.

As shown in fig. 5, in any of the above embodiments, the frequency converter ventilation assembly 100 further comprises: and a sealing member 150 provided at the cover plate 132 for sealing the cover plate 132 and the cabinet door 110.

In this embodiment, the frequency converter ventilation assembly 100 is further provided with a sealing 150, the sealing 150 being provided between the cover plate 132 and the cabinet door 110 for sealing a gap between the cover plate 132 and the cabinet door 110. By providing the sealing member 150, the liquid flowing along the outer surface of the housing can be blocked, and the liquid can be prevented from flowing into the cabinet door 110 from the gap between the cover plate 132 and the cabinet door 110, so as to protect the electrical structure in the cabinet door 110. Therefore, the sealing element 150 can improve the safety and reliability of the ventilation assembly 100 of the frequency converter, and the technical effect of reducing the failure rate of the ventilation assembly 100 of the frequency converter is achieved.

As shown in fig. 9, in any of the above embodiments, the cover plate 132 includes a mounting slot 1326, the mounting slot 1326 is annular and surrounds the opening of the groove 112, and the sealing member 150 is embedded in the groove 112.

In this embodiment, the frame 1322 is a rectangular frame 1322, and the frame 1322 has a mounting slot 1326 formed thereon. The sealing element 150 is a sealing ring that is snapped into the mounting slot 1326 to complete the assembly. After the cover 132 is mounted to the cabinet door 110, the sealing ring surrounds the opening of the recess 112 to block liquid flowing along the surface of the cabinet door 110 around the opening of the recess 112. Further, the technical effects of expanding the coverage area of the sealing element 150, improving the sealing effect and enhancing the safety and reliability of the ventilation assembly 100 of the frequency converter are achieved.

As shown in fig. 4 and 7, in any of the above embodiments, the cabinet door 110 includes: a door panel 111 including an opening of the groove 112; a surrounding edge 118 connected to the door panel 111 to surround the opening; the mesh enclosure 119 is connected with the surrounding edge 118, and the surrounding edge 118 and the mesh enclosure 119 enclose the groove 112.

In this embodiment, the structure of the cabinet door 110 is explained. Specifically, the cabinet door 110 includes a door panel 111, a surrounding edge 118, and a mesh enclosure 119. The door panel 111 is formed with an opening of the aforementioned groove 112, a first end of the surrounding edge 118 is connected to the opening, and the surrounding edge 118 surrounds the opening. The second edge of the surrounding edge 118 is connected to the mesh cover 119, and the mesh on the mesh cover 119 is the first ventilation opening 114. During assembly, the first end of the skirt 118 is welded to the cabinet door 110 to enclose and define the recess 112. Wherein, the slot is arranged on the surrounding edge 118, and the hook is clamped with the surrounding edge 118. Through setting up this surrounding edge 118 and screen panel 119 structure, can form the recess 112 towards the cabinet door 110 outside on cabinet door 110 to make the user can carry out the dismouting operation of filter house 120 under the condition of not opening cabinet door 110, and then realize reducing the filter house 120 and change the degree of difficulty, provide the technological effect of the condition of facilitating for the user.

In an embodiment of the present invention, there is provided a frequency converter, comprising the frequency converter ventilation assembly 100 as in any of the above embodiments; the cabinet door 110 is arranged in the shell in an openable manner, and the cabinet door 110 is used for opening or closing the cavity.

In this embodiment, a frequency converter is proposed to which the frequency converter ventilation assembly 100 of any of the above embodiments is applied. Therefore, the frequency converter has the advantages of the frequency converter ventilation assembly 100 in any of the above embodiments, and the technical effects that can be achieved by the frequency converter ventilation assembly 100 in any of the above embodiments can be achieved, which are not described herein again to avoid repetition.

On this basis, cabinet door 110, the converter still includes the casing, and the cavity is enclosed out to the casing, and electrical apparatus structure installs in the casing. The shell is provided with an electrical interface, and the electrical appliance structure is connected with an external circuit through the electrical interface. The cabinet door 110 is openably and closably installed on the housing for opening or closing the housing. Wherein, the back of the shell is provided with a third ventilation opening, and the heat dissipation airflow entering the shell from the cabinet door 110 penetrates through the cavity and is then discharged from the back side of the shell. Furthermore, third ventilation openings can be arranged on the left side and the right side and/or the upper side and the lower side of the shell, so that the coverage range of the heat dissipation airflow is expanded.

It is to be understood that, in the claims, the specification and the drawings attached to the specification, the term "plurality" means two or more, and unless otherwise specified, the terms "upper", "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the purpose of describing the present invention more conveniently and simplifying the description, but not for the purpose of indicating or implying that the device or element referred to must have the specific orientation described, be constructed and operated in the specific orientation, and thus the description should not be construed as limiting the present invention; the terms "connect," "mount," "secure," and the like are to be construed broadly, and for example, "connect" may refer to a fixed connection between multiple objects, a removable connection between multiple objects, or an integral connection; the multiple objects may be directly connected to each other or indirectly connected to each other through an intermediate. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art from the above data.

In the claims, the specification and drawings of the specification, the description of the term "one embodiment," "some embodiments," "specific embodiments," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In the claims, the description and the drawings of the present application, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (14)

1. A transducer ventilation assembly, comprising:

the cabinet door comprises a groove and a first ventilation opening penetrating through the bottom of the groove, and the opening of the groove faces the outer side of the cabinet door;

the filtering part is arranged in the groove;

and the positioning assembly is detachably connected with the cabinet door and is used for preventing the filtering part from being separated from the groove.

2. The frequency converter ventilation assembly of claim 1, wherein the positioning assembly comprises:

the cover plate is detachably connected with the cabinet door, covers the opening of the groove and comprises a second ventilation opening.

3. The frequency converter ventilation assembly of claim 2, wherein the positioning assembly further comprises:

the connecting part is arranged on the cover plate and is clamped with the cabinet door.

4. The frequency converter ventilation assembly of claim 3, wherein the cabinet door further comprises a slot in communication with the recess, the connection portion comprising:

the clamping hook is connected with the cover plate in a sliding mode and is provided with a first position and a second position on the cover plate;

the clamping hook is configured to be positioned in the clamping groove when in the first position;

the clamping hook is configured to be positioned outside the clamping groove under the condition that the clamping hook is positioned at the second position.

5. Frequency converter ventilation assembly according to claim 4,

the number of the clamping hooks is multiple;

the two clamping hooks are in a group, and the connecting part comprises at least one group of clamping hooks;

the two clamping hooks in the same group are symmetrically arranged on the cover plate.

6. The transducer ventilation assembly of claim 4, wherein the filter portion includes an avoidance slot for avoiding the catch.

7. The frequency converter ventilation assembly of claim 3, further comprising:

the elastic piece is connected the apron with connecting portion are used for driving connecting portion joint in the cabinet door.

8. A transducer ventilation assembly according to claim 7, wherein the resilient member is an extension spring.

9. The frequency converter ventilation assembly of claim 4, wherein the connection portion further comprises:

the handle is connected with the clamping hook.

10. The frequency converter ventilation assembly of claim 3, wherein the cover plate comprises:

the connecting part is arranged on the frame;

the grille is arranged in the frame, and the second ventilation opening penetrates through the grille.

11. The frequency converter ventilation assembly of claim 2, further comprising:

and the sealing element is arranged on the cover plate and used for sealing a gap between the cover plate and the cabinet door.

12. The transducer ventilation assembly of claim 11, wherein the cover plate includes a mounting groove that is annular and surrounds an opening of the recess, and the sealing member is embedded in the recess.

13. The frequency converter ventilation assembly of any one of claims 1 to 12, wherein the cabinet door comprises:

the door plate is provided with an opening of the groove;

the surrounding edge is connected with the door panel and surrounds the opening of the groove;

the screen panel, with the surrounding edge is connected, the surrounding edge with the screen panel encloses and closes out the recess.

14. A frequency converter, comprising:

a frequency converter ventilation assembly as claimed in any one of claims 1 to 13;

the cabinet door is arranged in the shell in an openable mode and used for opening or closing the cavity.

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