Space-saving surface cover assembling mechanism applied to frequency converter

Abstract

The utility model provides a surface cover assembling mechanism which is applied to a frequency converter and saves use space, the surface cover assembling mechanism comprises a shell and a lower surface cover of the frequency converter, the shell is detachably connected with the lower surface cover, and a sliding guide rail assembly, a fixing buckle assembly and a limiting buckle assembly are arranged between the shell and the lower surface cover; the sliding guide rail assembly comprises a shell sliding guide rail and a lower face cover sliding guide rail. The fixing buckle assembly comprises a shell fixing hole and a lower face cover fixing buckle. The limiting buckle assembly comprises a shell limiting buckle and a lower face cover limiting groove. According to the utility model, the installation mode of combining the guide rail and the buckle is applied to the frequency converter, so that the use space of the frequency converter is saved, the connection strength is enhanced, the reliability of the frequency converter is improved, and the installation operation of the frequency converter is more convenient and efficient.

Description

Technical Field

[0001] This utility model relates to the field of frequency converter technology, and in particular to a faceplate assembly mechanism for saving space on frequency converters. Background Technology

[0002] With the rapid development of electronic technology, frequency converters are increasingly widely used in industrial production. The dense installation of low-voltage frequency converters has created a market demand for more space-saving solutions. In existing technologies, frequency converters primarily save space by miniaturizing themselves through reducing power consumption and enhancing internal heat dissipation. Simultaneously, to facilitate the connection of input and output lines, current frequency converters generally have a two-part cover. The upper cover is usually fixed to the housing or integrated with it, while the lower cover is detachable and mostly uses a rotating installation method, making cable connection convenient during use. When installing the lower cover, first tilt it at a certain angle, align the lower cover's latch with the housing's insertion hole, and insert it. Then, using the contact surface between the lower cover's latch and the housing's insertion hole as a rotation axis, rotate the lower cover until the latch engages with the housing's side hole. This installation method has the following disadvantages: 1. It requires a large installation space, and space needs to be reserved for the rotation and opening of the cover; 2. When the cover is rotated and fastened, due to the assembly tolerance between the cover buckle and the housing hole, misalignment may occur during the fastening process, and the cover buckle is prone to breakage under multi-directional forces; 3. Installation is inconvenient, as the cover buckles are on the left and right sides, and both hands need to press and fasten them simultaneously to ensure that the buckles on both sides are installed in place at the same time. Utility Model Content

[0003] The purpose of this utility model is to provide an optimized solution for the inverter cover, which addresses the shortcomings of the aforementioned background technology, thereby improving installation convenience and effectively saving space.

[0004] To achieve the above objectives, this utility model provides a space-saving cover assembly mechanism for use on frequency converters, including a housing of the frequency converter and a bottom cover, wherein the housing and the bottom cover are detachably connected, and a sliding guide rail assembly, a fixing buckle assembly and a limiting buckle assembly are provided between the housing and the bottom cover;

[0005] The sliding guide rail assembly includes a housing sliding guide rail and a lower cover sliding guide rail. The housing sliding guide rail is connected to the housing, and the lower cover sliding guide rail is connected to the lower cover. The lower cover sliding guide rail matches the housing sliding guide rail and can slide along the housing sliding guide rail.

[0006] The fixing buckle assembly includes a housing fixing hole and a bottom cover fixing buckle. The bottom cover fixing buckle is connected to the bottom cover. The housing fixing hole is disposed on the housing. The bottom cover fixing buckle can be elastically deformed to insert into the housing fixing hole and fasten.

[0007] The limiting buckle assembly includes a housing limiting buckle and a bottom cover limiting groove. The bottom cover limiting groove is disposed on the bottom cover. The housing limiting buckle is connected to the housing. When the bottom cover moves so that the bottom cover fixing buckle enters the housing fixing hole, the housing limiting buckle also enters the bottom cover limiting groove to limit the bottom cover limiting groove.

[0008] Furthermore, both the lower cover sliding guide rail and the housing sliding guide rail are provided with two parallel lines. The width between the inner surfaces of the two lower cover sliding guide rails matches the width between the outer surfaces of the two housing sliding guide rails, or the width between the outer surfaces of the two lower cover sliding guide rails matches the width between the inner surfaces of the two housing sliding guide rails.

[0009] Furthermore, when the lower cover sliding guide rail is engaged with the housing sliding guide rail, the side surface of the lower cover is flush with the side surface of the housing.

[0010] Furthermore, the end of the bottom cover fixing buckle is provided with a bevel. When the bevel contacts the housing fixing hole, the bottom cover continues to push, which can deform the bottom cover fixing buckle until the end of the bottom cover fixing buckle is completely inserted into the housing fixing hole.

[0011] Furthermore, the surface of the lower cover fixing buckle is provided with anti-slip ribs, which are used to improve the surface roughness of the lower cover fixing buckle.

[0012] Furthermore, two limiting grooves are provided on the lower cover, and two corresponding limiting buckles are provided on the housing.

[0013] The above-mentioned solution of this utility model has the following beneficial effects:

[0014] The present invention provides a space-saving cover assembly mechanism for frequency converters. Through the setting of sliding guide rail assembly, fixing buckle assembly and limiting buckle assembly, the installation method of combining guide rail and buckle is applied to frequency converters. This not only saves the space of frequency converters, but also enhances the connection strength and improves the reliability of frequency converters. At the same time, it makes the installation and operation of frequency converters more convenient and efficient.

[0015] Other beneficial effects of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model (with the bottom cover disassembled);

[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model (with the bottom cover assembled);

[0018] Figure 3 This is a schematic diagram of the interior of the bottom cover of this utility model;

[0019] Figure 4 for Figure 2 Enlarged view of point A;

[0020] Figure 5 for Figure 2 Enlarged view of point B;

[0021] Figure 6 This is a schematic diagram of the assembly steps of this utility model.

[0022] [Explanation of Labels in the Attached Image]

[0023] 1-Housing shell; 2-Bottom cover; 3-Housing shell sliding guide rail; 4-Bottom cover sliding guide rail; 5-Housing shell fixing hole; 6-Bottom cover fixing buckle; 7-Beveled surface; 8-Anti-slip rib; 9-Housing shell limiting buckle; 10-Bottom cover limiting groove. Detailed Implementation

[0024] To make the technical problems, solutions, and advantages of this utility model clearer, a detailed description will be provided below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a locking connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] like Figures 1-3 As shown, an embodiment of this utility model provides a space-saving cover assembly mechanism for use on frequency converters, including a housing 1 of the frequency converter (the upper cover is integrally set with the housing 1) and a lower cover 2, and a sliding guide rail assembly, a fixing buckle assembly and a limiting buckle assembly are provided between the housing 1 and the lower cover 2.

[0028] In this embodiment, the sliding guide rail assembly includes two parallel housing sliding guide rails 3 and two parallel bottom cover sliding guide rails 4. The housing sliding guide rails 3 and the housing 1 are integrally formed, and the bottom cover sliding guide rails 4 and the bottom cover surface 2 are integrally formed. During installation, after the bottom cover sliding guide rails 4 and the housing sliding guide rails 3 are aligned, pushing the bottom cover 2 will allow the bottom cover 2 to move along a preset trajectory until it is assembled with the housing 1 in place.

[0029] It should be noted that the above-mentioned alignment refers to the misalignment of the lower cover sliding guide rail 4 with the housing sliding guide rail 3, that is, the width between the inner surfaces of the two lower cover sliding guide rails 4 matches the width between the outer surfaces of the two housing sliding guide rails 3, or the width between the outer surfaces of the two lower cover sliding guide rails 4 matches the width between the inner surfaces of the two housing sliding guide rails 3. This ensures the smooth movement and accurate alignment of the lower cover 2 when it slides along the housing 1, thanks to the limiting between the sliding guide rails.

[0030] Meanwhile, the dimensions of the lower cover 2 and the housing 1 are also matched. When the lower cover sliding guide rail 4 and the housing sliding guide rail 3 are misaligned and aligned, the side surface of the lower cover 2 is flush with the side surface of the housing 1. This ensures that the overall side surface is smooth after the lower cover 2 is installed, thereby improving the overall integrity of the inverter and reducing the space occupied. Of course, due to manufacturing errors, an assembly gap of about 0.2mm needs to be reserved between the lower cover sliding guide rail 4 and the housing sliding guide rail 3.

[0031] In this embodiment, the fixing buckle assembly includes a housing fixing hole 5 and a bottom cover fixing buckle 6. The bottom cover fixing buckle 6 is located at the front end of the bottom cover 2, and in this embodiment, it is also integrally molded. The housing fixing hole 5 is located at the corresponding position on the housing 1. The bottom cover fixing buckle 6 itself has a certain degree of elasticity and is located within the fixing buckle mounting groove of the bottom cover 2, similar to a cantilever structure. Meanwhile, as... Figure 4 As shown, the end of the lower cover fixing buckle 6 is provided with a bevel 7, and the housing fixing hole 5 may or may not be provided with a bevel 7. When the lower cover 2 is pushed until the bevel 7 of the lower cover fixing buckle 6 contacts the housing fixing hole 5 and deforms, the lower cover 2 is pushed further until the end of the lower cover fixing buckle 6 is fully inserted into the housing fixing hole 5. The lower cover fixing buckle 6 will then elastically recover and engage with the housing fixing hole 5, thereby achieving the purpose of fixing the lower cover 2.

[0032] Obviously, the inclined surface 7 avoids the need to manually press the lower cover fixing buckle 6 during the installation of the lower cover 2; simply pushing the lower cover 2 forward is sufficient. The sliding guide assembly ensures that the lower cover fixing buckle 6 is aligned with the housing fixing hole 5. When the lower cover 2 needs to be removed, the lower cover fixing buckle 6 must be manually pressed to deform it and allow it to exit from the housing fixing hole 5. In a preferred embodiment, this example provides anti-slip ribs 8 on the surface of the lower cover fixing buckle 6. These ribs increase the surface roughness, thereby increasing the friction of the pressing surface and preventing slippage due to sweaty hands, which could make the lower cover fixing buckle 6 difficult to open and exit.

[0033] In this embodiment, the retaining buckle assembly includes a housing retaining buckle 9 and a lower cover retaining groove 10. Meanwhile, as... Figure 5 As shown, two bottom cover limiting grooves 10 are provided, distributed at the two rear ends of the bottom cover 2 near the corner positions and integrally formed with the bottom cover 2. The housing limiting buckle 9 is provided at the corresponding position of the housing 1 and is also integrally formed with the housing 1. When the bottom cover 2 moves forward into position so that the bottom cover fixing buckle 6 enters the housing fixing hole 5, the housing limiting buckle 9 also smoothly enters the bottom cover limiting groove 10. The housing limiting buckle 9 limits the bottom cover limiting groove 10, preventing the rear end of the bottom cover 2 from warping, while the forward and backward movement is fixed by the fixing buckle assembly, thus ensuring a secure installation of the bottom cover 2 and the housing 1.

[0034] At the same time, such as Figure 6As shown, when installing the lower cover 2, first, align the lower cover sliding guide 4 of the lower cover 2 with the housing sliding guide 3 in a staggered manner. At this time, the side surface of the housing 1 and the side surface of the lower cover 2 remain on the same plane. Then, push the lower cover 2 forward along the sliding guide direction. The inclined end of the lower cover fixing buckle 6 will first touch the edge of the housing fixing hole 5. Under the continuous action of the thrust, the lower cover fixing buckle 6 gradually deforms until the end of the lower cover fixing buckle 6 passes through the housing fixing hole 5. The lower cover fixing buckle 6 then elastically resets and fastens to the housing fixing hole 5. At the same time, the housing limiting buckle 9 just enters the lower cover limiting groove 10 and is in place, thus the lower cover 2 is installed in place.

[0035] When disassembling the lower cover 2, first hold the lower cover 2 and press the lower cover fixing buckle 6 with your index finger until it deforms. When the end of the lower cover fixing buckle 6 is lower than the edge of the housing fixing hole 5, move the lower cover 2 backward along the sliding guide rail so that the lower cover fixing buckle 6 is completely disengaged from the housing fixing hole 5. At the same time, the lower cover limiting groove 10 will also disengage from the housing limiting buckle 9. Continue to move the lower cover 2 along the sliding guide rail until it is completely disengaged from the sliding guide rail. At this point, the lower cover 2 is disassembled.

[0036] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A space-saving cover assembly mechanism for use on frequency converters, characterized in that, The device includes a housing and a bottom cover of a frequency converter. The housing and the bottom cover are detachably connected. A sliding guide rail assembly, a fixing buckle assembly, and a limiting buckle assembly are provided between the housing and the bottom cover. The sliding guide rail assembly includes a housing sliding guide rail and a lower cover sliding guide rail. The housing sliding guide rail is connected to the housing, and the lower cover sliding guide rail is connected to the lower cover. The lower cover sliding guide rail matches the housing sliding guide rail and can slide along the housing sliding guide rail. The fixing buckle assembly includes a housing fixing hole and a bottom cover fixing buckle. The bottom cover fixing buckle is connected to the bottom cover. The housing fixing hole is disposed on the housing. The bottom cover fixing buckle can be elastically deformed to insert into the housing fixing hole and fasten. The limiting buckle assembly includes a housing limiting buckle and a bottom cover limiting groove. The bottom cover limiting groove is disposed on the bottom cover. The housing limiting buckle is connected to the housing. When the bottom cover moves so that the bottom cover fixing buckle enters the housing fixing hole, the housing limiting buckle also enters the bottom cover limiting groove to limit the bottom cover limiting groove.

2. The faceplate assembly mechanism for saving space on a frequency converter according to claim 1, characterized in that, Both the lower cover sliding guide rail and the housing sliding guide rail are provided with two parallel rails. The width between the inner surfaces of the two lower cover sliding guide rails matches the width between the outer surfaces of the two housing sliding guide rails, or the width between the outer surfaces of the two lower cover sliding guide rails matches the width between the inner surfaces of the two housing sliding guide rails.

3. The faceplate assembly mechanism for saving space on a frequency converter according to claim 1, characterized in that, When the sliding guide rail of the lower cover is engaged with the sliding guide rail of the housing, the side surface of the lower cover is flush with the side surface of the housing.

4. The space-saving cover assembly mechanism for use on a frequency converter according to claim 1, characterized in that, The end of the bottom cover fixing buckle is provided with a bevel. When the bevel contacts the housing fixing hole, the bottom cover can continue to push to deform the bottom cover fixing buckle until the end of the bottom cover fixing buckle is completely inserted into the housing fixing hole.

5. A space-saving cover assembly mechanism for use on a frequency converter according to claim 1, characterized in that, The surface of the bottom cover fixing buckle is provided with anti-slip ribs, which are used to improve the surface roughness of the bottom cover fixing buckle.

6. A space-saving cover assembly mechanism for use on a frequency converter according to claim 1, characterized in that, Two limiting grooves are provided on the lower cover, and two corresponding limiting buckles are provided on the housing.

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