Surface cover structure and frequency converter

Abstract

According to the surface cover structure provided by the utility model, the surface cover body is provided with the function interface clearance position, and the function interface clearance position is covered with the function interface cover; the surface cover body is provided with a functional interface clearance position, and the functional interface clearance position covers at least two adjacent side surfaces of the surface cover body, so that when the functional interface cover is opened, user disassembly and wiring operation can be performed on the two side surfaces of the surface cover body at the same time, operation convenience is achieved, user operability and man-machine information interactivity are good, and user experience is improved. And by arranging a connecting structure of the surface cover body and the functional interface cover, the structure is simple, and the operation is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of power control equipment, in particular to a surface cover structure of power control equipment and a frequency converter using the surface cover structure. Background Art

[0002] A frequency converter is a power control device that controls a motor by changing its operating frequency. Its cover structure plays a crucial role in product applications, requiring not only aesthetic considerations but also compliance with mandatory UL / CE certification requirements and safety regulations. Furthermore, user convenience in disassembly and wiring operations is crucial.

[0003] Most of the surface cover structures realized in the prior art are flat structures. Since the functional modules in the inverter are not arranged flatly, there will be inconvenience in operation when using the surface cover structure with a flat structure. Therefore, the prior art has defects and needs to be improved. Utility Model Content

[0004] In view of this, the present invention provides a cover structure that is simple in structure and convenient for users to disassemble and connect wires.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A face cover structure comprises a face cover body, wherein the face cover body is provided with a functional interface avoidance position, and a functional interface cover is covered on the functional interface avoidance position; the functional interface avoidance position covers at least two adjacent side surfaces of the face cover body.

[0007] Preferably, the functional interface cover includes a first end and a second end connected to the cover body, the first end is connected to the first side surface of the cover body through a first snap-fit ​​structure, and the second end surface is connected to the second side surface of the cover body through a second snap-fit ​​structure.

[0008] Preferably, the first clamping structure includes a clamping post provided on the face cover body, and a clamping post groove provided on the functional interface cover and adapted to the clamping post; the second clamping structure includes a clamping protrusion provided on the functional interface cover, and a clamping groove point provided on the face cover body and adapted to the clamping protrusion.

[0009] Preferably, the clamping column groove includes a first clamping column groove and a second clamping groove provided on both sides of the first end of the functional interface cover; the first clamping column groove and the second clamping column groove extend from both sides of the first end of the functional interface cover to the middle thereof respectively, and the groove sides of the first clamping column groove and the second clamping column groove are provided with notches.

[0010] Preferably, a limiting groove is provided in the first clamping column groove and / or the second clamping groove, and a limiting column adapted to the limiting groove is provided on the clamping column.

[0011] Preferably, the functional interface cover includes an integrally formed first cover plate and a second cover plate, the first cover plate and the second cover plate are connected at an angle, and respectively fit over two adjacent side surfaces of the face cover body; and a baffle for operating the functional interface cover is provided on the first cover plate.

[0012] Preferably, the first cover plate is further provided with an operation mark for indicating the function interface cover and a function interface mark of the function interface cover.

[0013] This embodiment also provides an inverter, including a shell, a control module, an expansion module and any of the above-mentioned cover structures; the control module is arranged in the shell, the expansion module is connected to the control module and extends out of the shell, and the cover structure covers the expansion module and is tightly connected to the shell after covering.

[0014] Preferably, a light guide column is provided on the expansion module, and the inner side surface of the face cover body is provided with a light guide slot hole adapted to the light guide column, the light guide column passes through the light guide slot hole from the inner side surface of the face cover body and is fixed to the face cover body, and the slot side surface of the light guide slot hole is set as an inclined surface.

[0015] Preferably, at least two light guide columns are provided on the expansion module, and at least two corresponding light guide slots are provided on the inner side of the cover body. A first separating rib is provided between two adjacent light guide columns, and a second separating rib is provided between two adjacent light guide slots.

[0016] Preferably, it also includes a fastener for connecting the shell and the cover structure, a first fastening hole is provided in the empty space of the functional interface, and a second fastening hole is provided on the shell, and the fastener is screwed into the first fastening hole and the second fastening hole to make the cover structure tightly connected to the shell.

[0017] It can be seen from the above technical solution that the utility model provides a face cover structure, which is provided with a functional interface avoidance position on the face cover body, and a functional interface cover is covered on the functional interface avoidance position; and the functional interface avoidance position covers at least two adjacent side surfaces of the face cover body. In this way, when the functional interface cover is opened, the user can perform disassembly and wiring operations on both sides of the face cover body at the same time, which is convenient to operate, thereby improving user operability and human-computer information interaction, and can also provide a connection structure between the face cover body and the functional interface cover, which is simple in structure and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 A schematic diagram of the installation of the cover structure provided in an embodiment of the present utility model;

[0020] Figure 2 Schematic diagram of the structure of the cover body provided in the embodiment of the utility model Figure 1 ;

[0021] Figure 3 Schematic diagram of the structure of the cover body provided in the embodiment of the utility model Figure 2 ;

[0022] Figure 4 A schematic structural diagram of a functional interface cover provided in an embodiment of the present utility model;

[0023] Figure 5 Schematic diagram of the installation structure of the functional interface cover provided in the embodiment of the utility model Figure 1 ;

[0024] Figure 6 Schematic diagram of the installation structure of the functional interface cover provided in the embodiment of the utility model Figure 2 ;

[0025] Figure 7 Schematic diagram of the installation of the housing and cover structure provided in the embodiment of the utility model Figure 1 ;

[0026] Figure 8 Schematic diagram of the installation of the housing and cover structure provided in the embodiment of the utility model Figure 2 ;

[0027] Figure 9 A schematic diagram of the structure of the expansion module provided in an embodiment of the present utility model;

[0028] Figure 10 Schematic diagram of the structure of the cover body provided in the embodiment of the utility model Figure 3 ;

[0029] Figure 11 This is a schematic diagram of the installation of the expansion module and the cover structure provided in an embodiment of the present utility model.

[0030] in,

[0031] 100. Face cover body;

[0032] 101. Functional interface avoidance position; 102. First side surface; 103. Second side surface; 104. Limiting column; 105. Clamping column; 106. Clamping point;

[0033] 200, functional interface cover;

[0034] 201, clamping column slot; 2011, first clamping column slot; 2012, second clamping slot; 202, clamping bump; 203, limit slot; 204, functional interface identifier; 205, baffle; 206, operation identifier; 207, light guide slot; 208, second separating rib; 209, inclined surface;

[0035] 300, housing;

[0036] 400, fasteners;

[0037] 500, extension module;

[0038] 501, light guide column; 502, first separating rib;

[0039] 600. Control module. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] The present invention provides a cover structure, such as Figure 1 As shown, the present invention includes a cover body 100, which is fixedly connected to the shell 300 of the power control device and is used to cover the shell 300 to protect the exposed electrical components on the shell 300. The cover body 100 is provided with a functional interface avoidance position 101, and a functional interface cover 200 is covered on the functional interface avoidance position 101; by opening the functional interface cover 200, the functional interface in the functional interface cover can be connected and disassembled. When the functional interface does not need to be operated, the functional interface cover 200 can be closed. The functional interface cover 200 protects the functional interface.

[0042] In this embodiment, the cover body 100 and the functional interface cover 200 are both formed by plastic molds. The functional interface cover 200 is wedged into the curved surface style of the cover body 100 and adopts a curved rotating opening design.

[0043] Among them, the functional interface avoidance position 101 covers at least two adjacent side surfaces of the face cover body 100, so that when the functional interface is connected and disassembled, there are at least two operating surfaces, which makes the operation more convenient and the operating space larger; in this embodiment, the functional interface avoidance position 101 covers the first side surface 102 and the second side surface 103 of the face cover body 100, which makes the operation convenient and the structure of the functional interface cover 200 is simpler.

[0044] like Figure 2-6 As shown, the functional interface cover 200 includes a first end and a second end connected to the face cover body 100, the first end is connected to the first side 102 of the face cover body 100 through a first snap-fit ​​structure, and the second end face is connected to the second side 103 of the face cover body 100 through a second snap-fit ​​structure.

[0045] like Figure 2-4 As shown, the first clamping structure includes a clamping post 105 provided on the face cover body 100, and a clamping post groove 201 provided on the functional interface cover 200 and adapted to the clamping post 105; wherein, the clamping post 105 is a cylindrical clamping post, of which two are respectively provided, and the clamping post groove 201 is also a cylindrical clamping post groove, of which two are respectively provided, and the two clamping post grooves 2011 and the clamping post groove 2012 are respectively adapted and connected with the two clamping posts 105, and the clamping post 105 is clamped into the clamping post groove 201, thereby realizing the connection between the first end of the functional interface cover 200 and the face cover body 100. After the connection, the functional interface cover 200 can be rotated and flipped with the clamping post 105 as the rotating axis.

[0046] Among them, such as Figure 4 As shown, the first clamping column groove 2011 and the second clamping groove 2012 extend from both sides of the first end of the functional interface cover 200 to the middle thereof, respectively, and the groove sides of the first clamping column groove 2011 and the second clamping column groove 2012 are provided with notches, wherein the first clamping column groove 2011 and the second clamping column groove 2012 are respectively made of elastic materials. During installation, the clamping column 105 can be directly clamped into the clamping column groove 201 from the notch, wherein the elastic force of the clamping column groove 201 can be adjusted according to the length L of the notch. The larger the length L of the notch, the greater the elastic force of the clamping column groove 201, and the easier it is for the clamping column 105 to be clamped into the clamping column groove 201. In this embodiment, the length L is set to just be able to clamp the clamping column body 105.

[0047] In addition, in this embodiment, the functional interface cover is a mesh port cover, and open cylindrical grooves with notches (card column grooves) are provided on both sides of the mesh port cover. By utilizing its elastic setting characteristics, the card column of the cover body is installed therein to provide a rotation axis for the mesh port cover.

[0048] like Figure 3-6As shown, the second clamping structure includes a clamping convex point 202 provided on the functional interface cover 200, and a clamping slot point 106 provided on the cover body 100 and adapted to the clamping convex point 202, wherein the clamping convex point 202 and the clamping slot point 106 can be set to one or more, and the specific position of their setting is not limited, as long as the second end of the functional interface cover 200 can be clamped and fixed to the second side surface 103 of the cover body 100; in this embodiment, one clamping convex point 202 and one clamping slot point 106 are respectively provided, and the two are adapted to each other, wherein adaptation refers to the adaptation of the structures and positions of the two, wherein the clamping convex point 202 can be set to a circular clamping point, and the clamping slot point 106 is set to an adapted circular clamping slot, specifically as shown Figure 6 As shown, the locking protrusion 202 and the locking groove point 106 adopt a round dot structure, which can ensure smooth guiding and locking in all directions, thereby facilitating the user's disassembly and assembly operations.

[0049] like Figure 2 and 5 As shown, a limiting groove 203 is provided in the first clamping column groove 2011 and / or the second clamping groove 2012, and a limiting column 104 adapted to the limiting groove 203 is provided on the clamping column 105. In this way, when the functional interface cover 200 is opened, the limiting column 104 can be clamped into the limiting groove 203, thereby limiting the opening angle of the functional interface cover 200. The structure is simple and the operation is convenient.

[0050] In this embodiment, Figure 7 As shown, the functional interface cover 200 includes an integrally formed first cover plate and a second cover plate, the first cover plate and the second cover plate are connected at an angle, and are respectively adapted to cover the two adjacent side surfaces of the face cover body 100. In this embodiment, the first cover plate and the second cover plate are at an angle of 90 degrees, and the first cover plate and the second cover plate are integrally formed; and a baffle 205 for operating the functional interface cover is provided on the first cover plate, wherein the baffle 205 is equivalent to a handle, and the functional interface cover 200 can be opened or closed by toggling the baffle 205, which is simple and convenient to operate.

[0051] In another embodiment, if Figure 7 As shown, the first cover plate is also provided with an operation mark 206 for indicating the function interface cover 200, for example, the operation mark 206 indicates the direction of opening or closing the operation, and the first cover plate is also provided with a function interface mark 204 of the function interface cover 200, for example, if there is a network port inside the function interface cover, then the function interface mark 204 is the network port mark.

[0052] In the face cover structure of this embodiment, during assembly, the first end of the functional interface cover 200 is first placed into the functional interface avoidance position 101, and then the first clamping column groove 2011 and the second clamping groove 2012 are used to clamp the clamping column 105 from the notch set therein, and then the functional interface cover 200 is covered on the functional interface avoidance position 101, and the second end of the functional interface cover 200 is clamped on the face cover body 100 through the clamping protrusion 202 and the clamping groove point 106. When it needs to be opened, it is only necessary to push the blocking piece 205 so that the clamping protrusion 202 is disengaged from the clamping groove point 106, and the functional interface cover 200 is flipped with the clamping column 105 as the rotating axis. After reaching the set flipping angle, it is clamped into the limiting column 104 through the limiting groove 203 for limit fixing, and then the disassembly and wiring operations can be carried out. The structure is simple and the operation is convenient.

[0053] Furthermore, this embodiment also provides a frequency converter, such as Figure 7-11 As shown, the inverter includes a shell 300, a control module 600, an expansion module 500 and the cover structure described in any of the above embodiments; in this embodiment, the inverter also includes other structures, and the other structures of the inverter can be known according to the existing technology and will not be described here.

[0054] The control module 600 is disposed in the shell 300, and the expansion module 500 is connected to the control module 600 and extends out of the shell 300. The expansion module 500 can be partially located inside the shell 300 and partially located outside the shell 300, or can be entirely located outside the shell 300.

[0055] The cover structure covers the expansion module 500 and is tightly connected to the shell (300) after covering; the cover structure protects the expansion module 500. In this way, when the expansion module 500 is needed, the cover structure can be disassembled and the expansion module 500 can be installed. When the expansion module 500 is not needed, the cover structure can also be disassembled and then the expansion module 500. In this way, the expansion module 500 can be installed according to the application scenario, which is more flexible.

[0056] The expansion module 500 is provided with a light guide column 501, wherein the light guide column 501 displays various indication functions of EtherCAT communication, and the number of light guide columns corresponds to the various indication functions displayed for EtherCAT communication, and generally one light guide column corresponds to the indication function displayed for EtherCAT communication; the inner side surface of the face cover body 100 is provided with a light guide slot 207 adapted to the light guide column 501, and the light guide column 501 passes through the light guide slot 207 from the inner side surface of the face cover body 100 and is fixed to the face cover body 100. After fixation, the light guide column 501 can be seen from the outer side surface of the face cover body 100, and the groove side surface of the light guide slot 207 is set to an inclined surface 209, wherein the inclined surface 209 may include a plurality of continuous inclined surfaces, such as Figure 11 As shown, the inclined surface 209 can be an inclined surface 209 composed of two consecutive inclined surfaces. In other embodiments, it can also be set to 1, or 3, or more than 3. When 2, or 3, or more than 3 are set, the connection between the inclined surfaces is set to a smooth guiding structure with a large inclination angle. In this way, a sufficiently large guiding effect can be provided for the rotational assembly of the face cover, ensuring that the light guide column on the extension module and the opening of the face cover can be accurately assembled into place.

[0057] In one embodiment, the expansion module 500 is provided with at least two light guides 501, and the inner side surface of the cover body 100 is provided with at least two corresponding light guide slots 207. A first separating rib 502 is provided between adjacent light guides 501, and a second separating rib 208 is provided between adjacent light guide slots 207. The first separating rib 502 and the second separating rib 208 are positioned correspondingly and simultaneously separate the adjacent light guides 501 to prevent crosstalk between adjacent light guides. By directly providing the light guides 501 on the expansion module 500, the light guides 501 serve as a component of the expansion module 500, eliminating the cost of configuring the light guides on the cover body.

[0058] In another embodiment, a fastener 400 for connecting the shell 300 and the cover structure is further included. A first fastening hole is provided in the functional interface avoidance position 101, and a second fastening hole is provided on the shell. The fastener 400 is screwed into the first fastening hole and the second fastening hole to tightly connect the cover structure to the shell 300. The fastener 400 is configured as a self-tapping screw and is hidden in the functional interface avoidance position 101. While achieving the fixing effect on the cover structure, it makes the product appearance more beautiful.

[0059] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0060] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cover structure, characterized in that: The invention comprises a cover body (100), wherein the cover body (100) is provided with a functional interface avoidance position (101), and a functional interface cover (200) is covered on the functional interface avoidance position (101); The functional interface avoidance space (101) covers at least two adjacent side surfaces of the cover body (100).

2. The cover structure according to claim 1, characterized in that: The functional interface cover (200) comprises a first end and a second end connected to the cover body (100), wherein the first end is connected to the first side surface (102) of the cover body (100) via a first snap-fit ​​structure, and the second end surface is connected to the second side surface (103) of the cover body (100) via a second snap-fit ​​structure.

3. The cover structure according to claim 2, characterized in that: The first clamping structure comprises a clamping column (105) provided on the face cover body (100), and a clamping column groove (201) provided on the functional interface cover (200) and adapted to the clamping column (105); the second clamping structure comprises a clamping protrusion (202) provided on the functional interface cover (200), and a clamping groove point (106) provided on the face cover body (100) and adapted to the clamping protrusion (202).

4. The cover structure according to claim 3, characterized in that: The clamping column slot (201) comprises a first clamping column slot (2011) and a second clamping slot (2012) provided on both sides of the first end of the functional interface cover (200); The first clamping column slot (2011) and the second clamping column slot (2012) respectively extend from both sides of the first end of the functional interface cover (200) toward the middle thereof, and notches are provided on the side surfaces of the first clamping column slot (2011) and the second clamping column slot (2012).

5. The cover structure according to claim 4, characterized in that: A limiting groove (203) is provided in the first clamping column groove (2011) and / or the second clamping groove (2012), and a limiting column (104) adapted to the limiting groove (203) is provided on the clamping column (105).

6. The cover structure according to any one of claims 1 to 5, characterized in that: The functional interface cover (200) comprises an integrally formed first cover plate and a second cover plate, wherein the first cover plate and the second cover plate are connected at an angle and respectively fit over two adjacent side surfaces of the face cover body (100); and the first cover plate is respectively provided with a baffle (205) for operating the functional interface cover, an operation mark (206) for indicating the functional interface cover (200), and a functional interface mark (204) of the functional interface cover (200).

7. A frequency converter, characterized in that: It comprises a housing (300), a control module (600), an expansion module (500) and a cover structure as described in any one of claims 1 to 6; The control module (600) is arranged in the shell (300), the expansion module (500) is connected to the control module (600) and extends out of the shell (300), and the cover structure covers the expansion module (500) and is tightly connected to the shell (300) after covering.

8. The frequency converter according to claim 7, characterized in that: The expansion module (500) is provided with a light guide column (501), and the inner side surface of the cover body (100) is provided with a light guide slot hole (209) adapted to the light guide column (501). The light guide column (501) passes through the light guide slot hole (209) from the inner side surface of the cover body (100) and is fixed to the cover body (100), and the groove side surface of the light guide slot hole (209) is set as an inclined surface (211).

9. The frequency converter according to claim 7, characterized in that: At least two light guide columns (501) are provided on the expansion module (500), and at least two corresponding light guide slots (209) are provided on the inner side surface of the cover body (100). A first separating rib (502) is provided between two adjacent light guide columns (501), and a second separating rib (210) is provided between two adjacent light guide slots (209).

10. The frequency converter according to claim 7, characterized in that: It also includes a fastener (400) for connecting the shell (300) and the cover structure, a first fastening hole is provided in the functional interface avoidance position (101), a second fastening hole is provided on the shell (300), and the fastener (400) is screwed into the first fastening hole and the second fastening hole to ensure that the cover structure is tightly connected to the shell (300).

Images