Frame structure and frequency converter structure with same

Abstract

The utility model provides a frame structure and a frequency converter structure with the same, and the frame structure comprises a plurality of connecting pieces which are bent structures, the plurality of connecting pieces are used for splicing and enclosing a connecting frame, and the bent concave sides of the plurality of connecting pieces are located at the inner side of the connecting frame; the auxiliary connecting plates are used for being connected with the at least two adjacent connecting pieces and arranged on the bent concave sides of the at least two adjacent auxiliary connecting plates, and the at least two adjacent connecting pieces are connected and positioned through the auxiliary connecting plates; wherein at least two adjacent connecting pieces are connected through a welding connecting part, and the welding connecting part is located on the bent convex sides of the at least two adjacent connecting pieces. According to the technical scheme, the technical problem that in the prior art, the welding effect of a frame structure is poor can be solved.

Description

Technical Field

[0001] The utility model relates to an installation structure of a frequency converter, and more specifically, to a frame structure and a frequency converter structure having the same. Background Art

[0002] Currently, in the prior art, in order to protect the frequency converter, a corresponding protective cabinet structure is often provided for protection. When manufacturing the protective cabinet structure, a corresponding frame structure often needs to be manufactured first, and the frame structure is used to form the main support structure of the protective cabinet structure. In the prior art, when manufacturing the frame structure, it is often formed by welding a plurality of connecting bars. In this way, it is necessary to first lap or join the plurality of connecting bars in sequence and then weld them one by one to form the corresponding frame structure.

[0003] However, adopting such a manufacturing method, during the welding process, due to the poor positioning stability of the splicing and docking, the connecting bars are prone to dislocation or the welding position is inaccurate. In this way, the welding effect of the frame structure will be poor, thereby affecting the overall structural stability of the frame structure and making the overall structural strength of the frame structure poor. Summary of the Utility Model

[0004] The main purpose of the present utility model is to provide a frame structure and a frequency converter structure having the same, so as to solve the technical problem of poor welding effect of the frame structure in the prior art.

[0005] To achieve the above object, according to one aspect of the present utility model, a frame structure is provided, including:

[0006] Connecting members, the connecting members are bending structures, there are a plurality of connecting members, and the plurality of connecting members are used for splicing to form a connecting frame, and the bending concave sides of the plurality of connecting members are located inside the connecting frame;

[0007] Auxiliary connecting plates, the auxiliary connecting plates are used for connecting with at least two adjacent connecting members and are used for being arranged at the bending concave sides of at least two adjacent auxiliary connecting plates, and at least two adjacent connecting members are connected and positioned through the auxiliary connecting plates;

[0008] Wherein, at least two adjacent connecting members are connected through a welding connection part, and the welding connection part is located at the bending convex sides of at least two adjacent connecting members.

[0009] Further, the auxiliary connecting plate is a bending plate, the shape of the auxiliary connecting plate is adapted to the splicing part of at least two adjacent connecting members, and the bending plate is attached to the splicing part of at least two adjacent connecting members.

[0010] Further, the auxiliary connecting plate is connected to at least two adjacent connecting members through positioning rivets; and / or,

[0011] The auxiliary connecting plate is welded to at least two adjacent connecting pieces.

[0012] Further, the connecting frame is of a square frame structure, and there are multiple auxiliary connecting plates. An auxiliary connecting plate is provided at the joint of every three adjacent connecting pieces; the auxiliary connecting plate has a first connecting portion, a second connecting portion, and a third connecting portion which are connected. The first connecting portion is used to connect to one of the three adjacent connecting pieces, the second connecting portion is used to connect to another one of the three adjacent connecting pieces, and the third connecting portion is used to connect to yet another one of the three adjacent connecting pieces.

[0013] Further, the first connecting portion is a first bending plate adapted to the bending concave side of one of the three adjacent connecting pieces, and the first bending plate is attached to the bending concave side of one of the three adjacent connecting pieces; and / or,

[0014] The second connecting portion is a second bending plate adapted to the bending concave side of another one of the three adjacent connecting pieces, and the second bending plate is attached to the bending concave side of another one of the three adjacent connecting pieces; and / or,

[0015] The third connecting portion is a third bending plate adapted to the bending concave side of yet another one of the three adjacent connecting pieces, and the third bending plate is attached to the bending concave side of yet another one of the three adjacent connecting pieces.

[0016] Further, the connecting frame has multiple mounting openings arranged at intervals, and the frame structure further includes:

[0017] A support plate, which is arranged at the bottom mounting opening among the multiple mounting openings. The support plate is connected to the connecting piece used to enclose the mounting opening, and the support plate is used to support the structure to be supported.

[0018] Further, the frame structure further includes:

[0019] A first grounding piece, which is installed on the support plate and is used to connect to the structure to be supported; and / or,

[0020] A second grounding piece, which is connected to the support plate; and / or,

[0021] A fixing bracket, which is installed on the support plate. A positioning groove is provided on the fixing bracket, and the positioning groove is adapted to at least part of the structure to be supported; and / or,

[0022] A wire routing bracket, which is installed on the support plate, and the connecting wire of the structure to be supported is used to be wound around the wire routing bracket.

[0023] Further, the frame structure further includes:

[0024] A support frame, which is connected to the support plate and / or the connecting piece connected to the support plate, and the support frame is located outside the connecting frame.

[0025] Further, the support frame includes a first support bar, a second support bar, and intermediate connecting bars. The first support bar and the second support bar are arranged at intervals. There are multiple intermediate connecting bars, and the multiple intermediate connecting bars are arranged at intervals along the extending direction of the gap between the first support bar and the second support bar. Both ends of each intermediate connecting bar are respectively connected to the first support bar and the second support bar;

[0026] Wherein, at least one of the first support bar, the second support bar, and the intermediate connecting bars is a U-shaped beam; and / or,

[0027] The intermediate connecting bar is welded to the first support bar; and / or,

[0028] The intermediate connecting bar is welded to the second support bar.

[0029] Further, the support plate is welded to the connecting member for enclosing the installation opening; and / or,

[0030] The support frame is welded to the support plate and / or the connecting member connected to the support plate.

[0031] Further, a water guide groove is arranged on one side of the connecting member located outside the connecting frame, and the water guide grooves of adjacent two connecting members are communicated; and / or,

[0032] The connecting member is provided with installation holes for connecting with the structure to be installed; and / or,

[0033] An installation member is arranged on one side of the connecting member located outside the connecting frame.

[0034] Further, a water baffle is arranged on one side of the connecting member located outside the connecting frame. The water baffle protrudes from the connecting member, and the water baffles arranged on adjacent two connecting members are spliced;

[0035] Wherein, a connecting structure is arranged on the water baffle for connecting with the door panel; and / or,

[0036] The frame structure further includes a sealing member, and the sealing member is arranged between the water baffle and the door panel installed at the water baffle.

[0037] According to another aspect of the present utility model, a frequency converter structure is provided, including:

[0038] The above-provided frame structure;

[0039] A frequency converter installed in the frame structure.

[0040] Applying the technical solution of the present utility model, by providing an auxiliary connecting plate connected to at least two adjacent connecting pieces, it is possible to facilitate the positioning of the splicing of at least two adjacent connecting pieces, so as to facilitate the subsequent welding of at least two adjacent connecting pieces, ensuring the welding stability of at least two adjacent connecting pieces, thereby facilitating the overall structural stability of the frame structure and ensuring the structural strength of the frame structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the drawings:

[0042] Figure 1 Shows a partial structural schematic diagram of a frame structure provided according to an embodiment of the present utility model;

[0043] Figure 2 Shows a structural schematic diagram of a connection frame provided according to an embodiment of the present utility model;

[0044] Figure 3 Shows a structural schematic diagram of a support plate provided according to an embodiment of the present utility model;

[0045] Figure 4 Shows a structural schematic diagram of a support frame provided according to an embodiment of the present utility model;

[0046] Figure 5 Shows a partial enlarged structural view of the connection frame at the location where the auxiliary connecting plate is provided according to an embodiment of the present utility model;

[0047] Figure 6 Shows a partial enlarged structural view of the connection frame at the location where the mounting member is provided according to an embodiment of the present utility model;

[0048] Figure 7 Shows a structural schematic diagram of a connecting piece provided according to an embodiment of the present utility model.

[0049] Among them, the above-mentioned drawings include the following reference numerals:

[0050] 10, connecting piece; 11, water guide groove; 12, mounting hole;

[0051] 20, auxiliary connecting plate; 21, first connecting portion; 22, second connecting portion; 23, third connecting portion;

[0052] 30, support plate;

[0053] 40, first grounding member; 50, second grounding member; 60, fixing bracket; 70, wire routing bracket;

[0054] 80. Support frame; 81. First support bar; 82. Second support bar; 83. Intermediate connecting bar;

[0055] 90. Mounting member; 100. Water baffle; 110. Connecting structure; 120. Positioning rivet. Specific embodiments

[0056] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0057] As Figures 1 to 7 shown, Embodiment 1 of the present utility model provides a frame structure, which includes a connecting member 10 and an auxiliary connecting plate 20. The connecting member 10 is a bent structure, and there are multiple connecting members 10. The multiple connecting members 10 are used to be spliced to form a connecting frame, and the bent concave sides of the multiple connecting members 10 are located inside the connecting frame. The auxiliary connecting plate 20 is used to connect with at least two adjacent connecting members 10 and is used to be arranged at the bent concave sides of at least two adjacent auxiliary connecting plates 20. At least two adjacent connecting members 10 are connected and positioned through the auxiliary connecting plate 20. Among them, at least two adjacent connecting members 10 are connected through a welding connection part, and the welding connection part is located at the bent convex sides of at least two adjacent connecting members 10.

[0058] By adopting the frame structure provided in this embodiment, by setting the auxiliary connecting plate 20 to connect with at least two adjacent connecting members 10, it is possible to facilitate the positioning of the splicing of at least two adjacent connecting members 10, so as to facilitate the subsequent welding of at least two adjacent connecting members 10, to ensure the welding stability of at least two adjacent connecting members 10, thereby facilitating the overall structural stability of the frame structure and ensuring the structural strength of the frame structure. In addition, since the bent concave side and the bent convex side are oppositely arranged, by connecting the auxiliary connecting plate 20 to the bent concave sides of at least two auxiliary connecting plates 20, it is possible to facilitate the positioning of the auxiliary connecting plate 20; by welding at the bent convex sides of at least two adjacent connecting members 10 to form a welding connection part, it is possible to facilitate the welding operation. Therefore, through the frame structure provided by the embodiment of the present utility model, the technical problem of poor welding effect of the frame structure in the prior art can be solved.

[0059] Specifically, at least two adjacent connecting members 10 are spliced and pasted at the splicing position to facilitate the splicing stability of at least two adjacent connecting members 10.

[0060] In this embodiment, the auxiliary connecting plate 20 is a bent plate, and the shape of the auxiliary connecting plate 20 is adapted to the splicing parts of at least two adjacent connecting pieces 10. The bent plate is attached to the splicing parts of at least two adjacent connecting pieces 10. With such a structural arrangement, it is convenient to better position the bent plate to improve the setting stability of the bent plate, thereby ensuring the splicing and positioning stability of at least two adjacent connecting pieces 10 connected to the bent plate.

[0061] Specifically, the auxiliary connecting plate 20 is connected to at least two adjacent connecting pieces 10 by positioning rivets 120 to improve the setting stability of the auxiliary connecting plate 20. Specifically, after the positioning rivets 120 are driven, the positioning rivets 120 can be sealed by internal expansion.

[0062] In this embodiment, the auxiliary connecting plate 20 is welded to at least two adjacent connecting pieces 10 to further improve the connection stability between the auxiliary connecting plate 20 and at least two adjacent connecting pieces 10 respectively, and improve the strength of the structure. Specifically, after at least two adjacent connecting pieces 10 are welded, the auxiliary connecting plate 20 can be welded to at least two adjacent connecting pieces 10. After multiple connecting pieces 10 are welded, the positioning rivets 120 can be ground off, and the auxiliary connecting plate 20 can be welded to the connecting pieces 10. The ground rivet holes will be filled with solder.

[0063] Specifically, the connecting frame is a square frame structure, and there are multiple auxiliary connecting plates 20. An auxiliary connecting plate 20 is provided at the splicing part of every three adjacent connecting pieces 10; the auxiliary connecting plate 20 has a first connecting part 21, a second connecting part 22 and a third connecting part 23 which are connected and arranged. The first connecting part 21 is used to connect to one of the three adjacent connecting pieces 10, the second connecting part 22 is used to connect to another one of the three adjacent connecting pieces 10, and the third connecting part 23 is used to connect to yet another one of the three adjacent connecting pieces 10. With such a structural arrangement, it is convenient to ensure the splicing stability of the square frame structure, thereby facilitating the welding stability of the square frame structure and improving the overall structural strength of the square frame structure.

[0064] Specifically, there are 12 connecting pieces 10, and the 12 connecting pieces 10 are spliced to form a square frame structure, and the square frame structure has 8 splicing parts. Specifically, the square frame structure has three directions of length, width and height. Each direction includes 4 connecting pieces 10. The lengths of the connecting pieces 10 in the length direction are different from the lengths of the connecting pieces 10 in the width direction, and the lengths of the connecting pieces 10 in the height direction are different from the lengths of the connecting pieces 10 in the width direction.

[0065] In this embodiment, the first connecting portion 21 is a first bending plate adapted to the bending concave side of one of the three adjacent connecting members 10. The first bending plate is attached to the bending concave side of one of the three adjacent connecting members 10 to ensure the connection stability between the first connecting portion 21 and one of the three adjacent connecting members 10.

[0066] Specifically, the second connecting portion 22 is a second bending plate adapted to the bending concave side of another one of the three adjacent connecting members 10. The second bending plate is attached to the bending concave side of another one of the three adjacent connecting members 10 to ensure the connection stability between the second connecting portion 22 and another one of the three adjacent connecting members 10.

[0067] Specifically, the third connecting portion 23 is a third bending plate adapted to the bending concave side of yet another one of the three adjacent connecting members 10. The third bending plate is attached to the bending concave side of yet another one of the three adjacent connecting members 10 to ensure the connection stability between the third connecting portion 23 and one of the three adjacent connecting members 10.

[0068] Specifically, the connecting end of the connecting member 10 includes two connecting end faces connected at a preset angle. The connecting end faces of the connecting segments of the three adjacent connecting members 10 are spliced to form the vertex splicing portion of the square frame structure.

[0069] In this embodiment, the connecting frame has a plurality of mounting openings arranged at intervals. The frame structure further includes a support plate 30. The support plate 30 is disposed at the bottom mounting opening among the plurality of mounting openings. The support plate 30 is connected to the connecting member 10 for enclosing the mounting opening. The support plate 30 is used to support the structure to be supported. In this way, it is convenient to stably support the structure to be supported through the support plate 30. Specifically, the structure to be supported may be a frequency converter.

[0070] Specifically, the frame structure further includes a first grounding member 40. The first grounding member 40 is installed on the support plate 30. The first grounding member 40 is used to connect to the structure to be supported. With such a structural arrangement, it is convenient to effectively ground the structure to be supported. Specifically, the first grounding member 40 may be a ground bar to ground-connect the frequency converter components and the frame structure through the ground bar.

[0071] Specifically, the frame structure further includes a second grounding member 50. The second grounding member 50 is connected to the support plate 30 to facilitate grounding of the support plate 30 and the connecting member 10 connected to the support plate 30. Specifically, the second grounding member 50 may be a grounding bolt.

[0072] In this embodiment, the frame structure further includes a fixing bracket 60. The fixing bracket 60 is installed on the support plate 30. A positioning groove is provided on the fixing bracket 60, and the positioning groove is adapted to at least a part of the structure to be supported, so as to improve the installation stability of at least a part of the structure to be supported. Specifically, the positioning groove is adapted to the reactor of the frequency converter to fixedly install the reactor.

[0073] Specifically, there may be at least two fixing brackets 60, and the at least two fixing brackets 60 are arranged at intervals. Preferably, the openings of the positioning grooves of the at least two fixing brackets 60 face away from each other.

[0074] In this embodiment, the frame structure further includes a wiring bracket 70. The wiring bracket 70 is installed on the support plate 30, and the connecting wires of the structure to be supported are used to be wound around the wiring bracket 70 to facilitate wiring.

[0075] Specifically, the frame structure further includes a support frame 80. The support frame 80 is connected to the support plate 30 and / or the connecting member 10 connected to the support plate 30, and the support frame 80 is located outside the connection frame. With such a structural arrangement, it is possible to facilitate the support of the support frame through the support frame 80, improve the installation stability of the support frame, and provide a certain degree of protection for the support frame.

[0076] Specifically, a plurality of connection holes are provided on the support frame 80, and the plurality of connection holes are used to connect or weld with the support plate 30 and / or the connecting member 10 connected to the support plate 30. Specifically, the plurality of connection holes may be six.

[0077] In this embodiment, the support frame 80 includes a first support bar 81, a second support bar 82, and an intermediate connection bar 83. The first support bar 81 and the second support bar 82 are arranged at intervals, and there are a plurality of intermediate connection bars 83. The plurality of intermediate connection bars 83 are arranged at intervals along the extending direction of the gap between the first support bar 81 and the second support bar 82, and both ends of each intermediate connection bar 83 are respectively connected to the first support bar 81 and the second support bar 82. With such a structural arrangement, it is possible to facilitate the improvement of the support stability of the support frame 80 to stably support the support frame.

[0078] Specifically, at least one of the first support bar 81, the second support bar 82, and the intermediate connection bar 83 is a U-shaped beam. With such a structural arrangement, it is possible to effectively ensure the structural stability of the support frame 80 and facilitate the stable support of the support frame through the support frame 80.

[0079] Specifically, the intermediate connection bar 83 is welded to the first support bar 81 to improve the connection stability between the intermediate connection bar 83 and the first support bar 81 and ensure the overall structural strength of the support frame 80.

[0080] Specifically, the middle connecting bar 83 is welded to the second support bar 82 to improve the connection stability between the middle connecting bar 83 and the second support bar 82, so as to ensure the overall structural strength of the support frame 80.

[0081] In this embodiment, the support plate 30 is welded to the connecting member 10 for enclosing the installation opening to ensure the connection stability of the support plate 30, thereby facilitating the guarantee of the support stability of the support plate 30.

[0082] Specifically, the support frame 80 is welded to the support plate 30 and / or the connecting member 10 connected to the support plate 30 to ensure the connection stability of the support frame 80, so as to facilitate the stable support of the support frame.

[0083] In this embodiment, a water guide groove 11 is provided on one side of the connecting member 10 located outside the connecting frame, and the water guide grooves 11 of two adjacent connecting members 10 are communicated. In this way, it is possible to facilitate water guiding through the water guide groove 11 and prevent external water from entering the inside of the connecting frame.

[0084] Specifically, the water guide groove 11 at the top guides water to the water guide grooves 11 on both sides respectively, thereby guiding the water to the bottom of the connecting frame, so as to better prevent water from entering the connecting frame.

[0085] Specifically, the connecting member 10 is provided with mounting holes 12, and the mounting holes 12 are used for connecting with the structure to be installed, so as to facilitate the subsequent installation of the structure to be installed on the connecting member 10. Specifically, there are multiple mounting holes 12, and the structures to be installed include door hinges, mounting beams, door panels and other structures. Specifically, the positioning rivets 120 pass through some of the mounting holes 12 to connect with the connecting member 10, the door hinge is connected to some of the mounting holes 12 to install the movable door panel, the mounting holes 12 corresponding to the door hinge are located on the vertically placed connecting member 10, and the nuts connected to the door panel are installed in some of the mounting holes 12.

[0086] Specifically, a mounting member 90 is provided on one side of the connecting member 10 located outside the connecting frame, so as to facilitate the installation of the connecting frame through the mounting member 90. Specifically, the mounting member 90 is a connecting nut, and the connecting nut is welded to the top of the connecting frame, and the connecting nut is used for the installation of the lifting ring.

[0087] In this embodiment, a water baffle 100 is provided on one side of the connecting member 10 located outside the connecting frame, and the water baffle 100 protrudes from the connecting member 10, and the water baffles 100 provided on two adjacent connecting members 10 are spliced, so as to smoothly block external water outside the connecting frame.

[0088] Specifically, a connection structure 110 is provided on the water baffle 100. The connection structure 110 is used to connect with the door panel to facilitate the installation of the door panel better. Specifically, the connection structure 110 is used to install the door panels on the left, right, front, and back of the frame structure. Specifically, the connection structure 110 can be structures such as connection holes and connection bolts.

[0089] Specifically, the frame structure further includes a seal. The seal is provided between the water baffle 100 and the door panel installed at the water baffle 100. With such a structural arrangement, it is possible to effectively ensure the sealing performance of the frame structure, better prevent external impurities or water from entering the frame structure, and thus facilitate better protection of the structure to be supported inside the frame structure.

[0090] Specifically, the welding of the above-mentioned connectors 10 can all be full welding, and all the hole positions except the reserved installation hole positions 12 are welded and filled. In addition, some of the reserved installation hole positions 12 can also be increased or decreased according to requirements.

[0091] Embodiment 2 of the present invention provides a frequency converter structure. The frequency converter structure includes the above-provided frame structure and a frequency converter. The frequency converter is installed inside the frame structure. Specifically, the frequency converter can be a magnetic levitation frequency converter of a centrifugal unit.

[0092] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: By using a full-welded frame structure, the sealing performance of the frequency converter is increased, the protection level is effectively improved, the reliability and strength of the frame structure are ensured, and high installation and maintenance convenience is guaranteed. By using an open-frame structure, installation operations can be freely carried out on five surfaces of the frame structure, which facilitates the reasonable installation and arrangement of the structure to be supported in the connection frame. Before welding, an auxiliary connection plate is used, which can effectively improve the welding positioning accuracy, ensure the welding effect, structural strength, and processing accuracy, and better improve the strength of the frame structure.

[0093] It should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or their combinations.

[0094] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the specification. In all the examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, further discussion thereof is not required in subsequent drawings.

[0095] In the description of the present application, it should be understood that the orientation or positional relationships indicated by orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom", etc., are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Without contrary statements, these orientation terms do not indicate and imply that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present application; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0096] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "above-mentioned", etc., can be used here to describe the spatial positional relationships between a device or feature shown in the drawings and other devices or features. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the drawings for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used herein.

[0097] In addition, it should be noted that the use of words such as "first", "second", etc. to limit components is only for the convenience of differentiating the corresponding components. Without otherwise stating, the above words have no special meanings, and thus should not be construed as limiting the protection scope of the present application.

[0098] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A frame structure, characterized in that: include: A connecting piece (10), wherein the connecting piece (10) is a bent structure, there are a plurality of connecting pieces (10), and the plurality of connecting pieces (10) are used to be spliced ​​together to form a connecting frame, and the bent concave sides of the plurality of connecting pieces (10) are located on the inner side of the connecting frame; an auxiliary connecting plate (20), the auxiliary connecting plate (20) being used to connect with at least two adjacent connecting members (10) and being used to be arranged at the bent concave sides of at least two adjacent auxiliary connecting plates (20), and at least two adjacent connecting members (10) being connected and positioned via the auxiliary connecting plate (20); Wherein, at least two adjacent connecting members (10) are connected via a welding connection portion, and the welding connection portion is located on the bent convex side of at least two adjacent connecting members (10).

2. The frame structure according to claim 1, characterized in that: The auxiliary connecting plate (20) is a bent plate, the auxiliary connecting plate (20) is adapted to the shape of the joint between at least two adjacent connecting members (10), and the bent plate is attached to the joint between at least two adjacent connecting members (10).

3. The frame structure according to claim 1, characterized in that: The auxiliary connecting plate (20) is connected to at least two adjacent connecting members (10) via positioning rivets (120); and / or, The auxiliary connecting plate (20) is welded to at least two adjacent connecting members (10).

4. The frame structure according to claim 1, characterized in that: The connection frame is a square frame structure, the auxiliary connection plates (20) are multiple, and the auxiliary connection plates (20) are arranged at the joint of every three adjacent connection pieces (10); the auxiliary connection plate (20) has a first connection part (21), a second connection part (22) and a third connection part (23) which are connected and arranged, the first connection part (21) is used to connect with one of the three adjacent connection pieces (10), the second connection part (22) is used to connect with another of the three adjacent connection pieces (10), and the third connection part (23) is used to connect with another of the three adjacent connection pieces (10).

5. The frame structure according to claim 4, characterized in that: The first connecting portion (21) is a first bending plate adapted to the bending concave side of one of the three adjacent connecting members (10), and the first bending plate is attached to the bending concave side of one of the three adjacent connecting members (10); and / or, The second connecting portion (22) is a second bending plate adapted to the bending concave side of another one of the three adjacent connecting members (10), and the second bending plate is attached to the bending concave side of another one of the three adjacent connecting members (10); and / or, The third connecting portion (23) is a third bending plate adapted to the bending concave side of another one of the three adjacent connecting members (10), and the third bending plate is attached to the bending concave side of another one of the three adjacent connecting members (10).

6. The frame structure according to claim 1, characterized in that: The connection frame has a plurality of installation openings arranged at intervals, and the frame structure further comprises: A support plate (30) is arranged at the installation opening located at the bottom among the plurality of installation openings, the support plate (30) is connected to the connecting member (10) used to enclose the installation opening, and the support plate (30) is used to support the structure to be supported.

7. The frame structure according to claim 6, characterized in that: The framework structure also includes: a first grounding member (40) mounted on the support plate (30), the first grounding member (40) being used to connect to the supporting structure; and / or, a second grounding member (50) connected to the support plate (30); and / or, a fixing frame (60) mounted on the supporting plate (30), wherein the fixing frame (60) is provided with a positioning groove, wherein the positioning groove is adapted to at least a portion of the structure to be supported; and / or, A wiring bracket (70) is mounted on the support plate (30), and the connecting wire of the structure to be supported is used to be wound around the wiring bracket (70).

8. The frame structure according to claim 6, characterized in that: The framework structure also includes: A support frame (80) is connected to the support plate (30) and / or the connecting member (10) connected to the support plate (30), and the support frame (80) is located outside the connecting frame.

9. The frame structure according to claim 8, characterized in that: The support frame (80) comprises a first support bar (81), a second support bar (82) and an intermediate connecting bar (83), wherein the first support bar (81) and the second support bar (82) are arranged at intervals, and the intermediate connecting bar (83) is multiple, and the multiple intermediate connecting bars (83) are arranged at intervals along the extension direction of the gap between the first support bar (81) and the second support bar (82), and the two ends of each intermediate connecting bar (83) are respectively connected to the first support bar (81) and the second support bar (82); Wherein, at least one of the first support bar (81), the second support bar (82) and the middle connecting bar (83) is a U-shaped beam; and / or, The intermediate connecting bar (83) is welded to the first supporting bar (81); and / or, The middle connecting bar (83) is welded to the second supporting bar (82).

10. The frame structure according to claim 8, characterized in that: The support plate (30) is welded to the connecting piece (10) for enclosing the installation opening; and / or, The support frame (80) is welded to the support plate (30) and / or the connecting member (10) connected to the support plate (30).

11. The frame structure according to claim 1, characterized in that: A water guide groove (11) is provided on one side of the connecting member (10) located outside the connecting frame, and the water guide grooves (11) of two adjacent connecting members (10) are connected; and / or, The connecting member (10) is provided with a mounting hole (12), and the mounting hole (12) is used to connect with the structure to be installed; and / or, A mounting piece (90) is provided on one side of the connecting piece (10) located outside the connecting frame.

12. The frame structure according to claim 1, characterized in that: A water baffle (100) is provided on one side of the connecting member (10) located outside the connecting frame, the water baffle (100) is arranged protruding from the connecting member (10), and the water baffles (100) arranged on two adjacent connecting members (10) are spliced ​​together; Wherein, the water retaining plate (100) is provided with a connecting structure (110), and the connecting structure (110) is used to be connected to the door panel; and / or, The frame structure further comprises a sealing member, which is arranged between the water retaining plate (100) and a door panel installed at the water retaining plate (100).

13. A frequency converter structure, characterized in that: include: The frame structure according to any one of claims 1 to 12; The frequency converter is installed in the frame structure.

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