Wiring assembly and inverter

Abstract

The application relates to a wiring assembly and an inverter, the wiring assembly comprising a box body and a cover body. The box body is provided with a placement cavity with an opening, the box body comprises a first buckle part located on one side of the opening and an elastic limiting part located on the side of the opening away from the first buckle part, the elastic limiting part is configured to be capable of stretching and contracting along the axial direction of the elastic limiting part when subjected to external force, and the axial direction of the elastic limiting part is arranged at an angle with the closing direction of the cover body; the cover body is detachably closed on the box body, and the opening is covered when the cover body is closed on the box body; the cover body comprises a second buckle part matched with the first buckle part and a limiting hole matched with the elastic limiting part, the first buckle part and the second buckle part are buckled and connected when the cover body is closed on the box body, and the elastic limiting part is partially inserted into the limiting hole. The above scheme is simple and fast in the installation and dismounting process, does not need to additionally add hinges, buckles and the like, and reduces the production cost and the dismounting difficulty.

Description

Technical Field

[0001] This application relates to the field of inverter technology, and in particular to wiring assemblies and inverters. Background Technology

[0002] Inverters, as key electrical equipment, have a wide range of applications, covering industrial production, commercial operations, and various civil facilities. Among these applications, the wiring components require frequent external wiring operations, making ease of installation and removal crucial. This has become an important aspect that cannot be ignored in inverter product design.

[0003] Currently, there are two main solutions for fixing the inverter wiring assembly cover to the main enclosure:

[0004] 1. The machine uses screw connections from the front, which are simple in structure, easy to understand, and easy to operate. However, to ensure the stability of the connection and meet airtightness requirements, a large number of screws are usually needed around the wiring assembly cover for fixation. The installation and removal of a large number of screws is cumbersome, consuming a lot of time and manpower, especially in scenarios with frequent wiring, which greatly reduces work efficiency.

[0005] 2. The addition of hinges and latches on the side aims to improve the ease of installation and removal of the cover. While this enhances convenience to some extent, the relatively high manufacturing cost of the hinges and latches increases the overall production cost of the product, thus limiting its large-scale promotion and application, and making it difficult to fully leverage its advantages in a cost-sensitive market. Utility Model Content

[0006] Therefore, it is necessary to provide a wiring component and inverter to address the issue that existing technologies can no longer fully meet the comprehensive requirements of convenience and cost control for the fixing method of inverter wiring component cover plates.

[0007] A wiring assembly includes a housing and a cover. The housing has an open placement cavity and includes a first latching portion located on one side of the open and an elastic limiting member located on the side of the open opposite to the first latching portion. The elastic limiting member is configured to extend and retract along its own axial direction when subjected to external force. The cover is detachably fitted onto the housing and covers the open when the cover is closed. The cover includes a second latching portion that latches with the first latching portion and a limiting hole that latches with the elastic limiting member. The axial direction of the elastic limiting member is set at an angle to the closing direction of the cover. When the cover is closed onto the housing, the first latching portion and the second latching portion are latched together, and the elastic limiting member is partially inserted into the limiting hole.

[0008] In one embodiment, the cover further includes a cover plate, the second latching portion includes a limiting strip that is parallel to and spaced apart from the cover plate, the first latching portion is at least partially located on the path of the limiting strip moving along the closing direction of the cover, and when the cover closes the box, the first latching portion is at least partially located between the limiting strip and the cover plate.

[0009] In one embodiment, the second latching part further includes a positioning post, the axial direction of which is the same as the closing direction of the cover, and one end of the positioning post is connected to the cover plate and the other end is connected to the limiting strip.

[0010] In one embodiment, the first buckle portion is recessed with a positioning groove that is opposite to the positioning post. The positioning groove and the positioning post are arranged in a one-to-one correspondence. When the cover closes the box, the positioning post is at least partially located in the positioning groove.

[0011] In one embodiment, the limiting strip has a second guide surface on one end face facing the cover plate. The second guide surface is located at the end of the limiting strip near the opening, and the second guide surface is inclined in the direction away from the cover plate in the direction near the opening.

[0012] In one embodiment, the end face of the first latch portion away from the cover plate is provided with a first guide surface, and the first guide surface is inclined toward the direction closer to the cover plate in the direction away from the opening.

[0013] In one embodiment, when the cover closes the box, the first snap-fit ​​portion abuts against the limiting strip in the closing direction of the cover.

[0014] In one embodiment, the wiring assembly further includes a fastener, the housing has at least one first mounting hole located on the side of the opening near the elastic retainer, and the cover has a second mounting hole corresponding to and coaxially arranged with the first mounting hole, the fastener passing through the second mounting hole and being detachably connected to the first mounting hole.

[0015] In one embodiment, the wiring assembly further includes a sealing ring, the housing is formed in a placement groove surrounding the opening, the sealing ring is at least partially located in the placement groove, and when the cover closes the housing, the sealing ring is pressed between the housing and the cover in the closing direction of the cover.

[0016] An inverter includes a wiring assembly as described in any of the above embodiments.

[0017] The wiring assembly provided in the above solution uses a first and second latching part that engage on one side of the box and the cover, and an elastic limiting member on the other side. The first and second latching parts limit and secure the cover and the box on the side where the first latching part is located, and the elastic limiting member limits and secures the cover and the box on the side where the elastic limiting member is located. The two work together to limit the cover and the box on opposite sides, thereby restricting the movement of the cover in all directions and ensuring that the cover is firmly attached to the box. The installation and disassembly process is simple and quick, without the need for additional hinges, buckles, etc., reducing production costs and disassembly difficulty. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the wiring assembly in one embodiment of this application.

[0019] Figure 2 for Figure 1 Partial cross-sectional view of the wiring assembly in the assembled state. Figure 1 .

[0020] Figure 3 for Figure 1 Partial cross-sectional view of the wiring assembly in the assembled state. Figure 2 .

[0021] Figure 4 for Figure 1 A partial structural diagram of the middle cover.

[0022] Figure 5 for Figure 1 A partial exploded view of the middle cover and the box body.

[0023] Explanation of reference numerals in the attached figures:

[0024] 100. Wiring assembly; 110. Box body; 111. Placement cavity; 1111. Opening; 112. First snap-fit ​​part; 1121. Positioning groove; 1122. First guide surface; 113. Assembly hole; 114. First mounting hole; 115. Placement groove; 116. Elastic limiting element; 120. Cover body; 121. Second snap-fit ​​part; 1211. Limiting strip; 12111. Second guide surface; 1212. Positioning post; 1213. Fixing screw; 122. Cover plate; 123. Limiting hole; 124. Second mounting hole; 130. Fastener; 140. Sealing ring. Detailed Implementation

[0025] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0026] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 application.

[0027] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0031] This application provides an inverter in one embodiment, which can be applied to any scenario and can be any model without limitation. The inverter includes a wiring assembly 100 as described in any of the following embodiments. The housing 110 in the wiring assembly 100 is connected to the main body of the inverter. The two can be fixedly connected, or the housing 110 and the main body can be an integral structure, or the housing 110 can be part of the main body, without limitation.

[0032] See Figure 1 , Figure 1 A schematic diagram of the wiring assembly 100 in one embodiment of this application is shown. The wiring assembly 100 provided in this embodiment can be applied to the above-mentioned inverter, but is not intended to limit it. Figure 1 As shown, the wiring assembly 100 includes a housing 110 and a cover 120. The housing 110 has an opening 111 for connecting the internal wiring of the inverter to the external wiring.

[0033] like Figure 1 As shown, the lid 120 is detachably fitted onto the box 110, and when the lid 120 is fitted onto the box 110, it covers the opening 1111, thus combining... Figure 2 and Figure 3 As shown, the box body 110 includes a first latching part 112 located on one side of the opening 1111, which is combined with Figure 4 and Figure 5As shown, the cover 120 includes a second latching part 121 that latches with the first latching part 112. When the cover 120 closes the box 110, the first latching part 112 and the second latching part 121 are latched together to limit and secure the closing of the cover 120 and the box 110 on the side where the first latching part 112 is located through the first latching part 112 and the second latching part 121.

[0034] like Figure 1 and Figure 3 As shown, the box body 110 also includes an elastic limiting member 116 located on the side of the opening 1111 opposite to the first latching part 112, such as... Figure 3 As shown, the elastic limiting member 116 is configured to extend and retract along its own axis when subjected to external force. The axis of the elastic limiting member 116 is set at an angle to the closing direction of the cover 120. The cover 120 includes a limiting hole 123 that cooperates with the elastic limiting member 116. When the cover 120 closes the box 110, the elastic limiting member 116 is partially inserted into the limiting hole 123, thereby limiting the movement of the cover 120 in the closing direction through the elastic limiting member 116. This achieves the closing of the cover 120 and the box 110 on the side where the elastic limiting member 116 is located. Combined with the first latching part 112 and the second latching part 121 located on the other side, the closing of the cover 120 and the box 110 is limited on opposite sides, thereby restricting the movement of the cover 120 in all directions and ensuring that the cover 120 is firmly closed to the box 110. In this embodiment, the axial direction of the elastic limiting member 116 is perpendicular to the closing direction of the cover 120, but this is not a limitation.

[0035] Understandably, the interlocking first latching part 112 and the second latching part 121 are designed for easy disassembly. The elastic limiting member 116 on the other side can shorten along its own axis when subjected to external force, thus disengaging from the limiting hole 123, which also facilitates assembly and disassembly. Together, they effectively restrict the movement of the cover 120 in all directions, ensuring the cover 120 is securely fitted onto the box 110 without the need for additional hinges or fasteners, reducing production costs and disassembly difficulty.

[0036] like Figure 1 and Figure 3 As shown, the box body 110 is also provided with an assembly hole 113. The assembly hole 113 is aligned with the limiting hole 123. The assembly hole 113 is used to install the elastic limiting member 116. The elastic limiting member 116 is partially located in the assembly hole 113 and partially protrudes from the assembly hole 113. The part protruding from the assembly hole 113 is inserted into the limiting hole 123 when the cover 120 closes the box body 110, so as to restrict the movement of the cover 120 in the closing direction.

[0037] like Figure 1 As shown, in one embodiment, the cover 120 further includes a cover plate 122, such as Figure 4 As shown, the second latching part 121 includes a limiting strip 1211 that is parallel to and spaced apart from the cover plate 122. The first latching part 112 is at least partially located on the path of the limiting strip 1211 moving along the closing direction of the cover body 120, and as shown... Figure 2 As shown, when the cover 120 closes the box 110, the first latching part 112 is at least partially located between the limiting strip 1211 and the cover plate 122, so as to achieve mutual limiting of the first latching part 112 and the limiting strip 1211, and the first latching part 112 and the cover plate 122 in the closing direction, thereby achieving self-locking of the limit in the closing direction of the cover 120.

[0038] like Figure 4 and Figure 5 As shown, in one embodiment, the second latching part 121 further includes a positioning post 1212. The axial direction of the positioning post 1212 is the same as the closing direction of the cover 120. One end of the positioning post 1212 is connected to the cover plate 122, and the other end is connected to the limiting strip 1211, thus reserving space for the first latching part 112 to be partially clamped between the limiting strip 1211 and the cover plate 122.

[0039] In this embodiment, the second latching part 121 also includes a fixing screw 1213, which is used to fix the limiting strip 1211 to the positioning post 1212, so that the connection of the limiting strip 1211 is more stable, the force on the limiting strip 1211 can be distributed, and it is not easy to break when subjected to force in the closing direction of the cover 120.

[0040] like Figure 5 As shown, in one embodiment, the first latching part 112 is recessed with a positioning groove 1121 opposite to the positioning post 1212. The positioning groove 1121 and the positioning post 1212 are arranged in a one-to-one correspondence, and when the cover 120 closes the box body 110, the positioning post 1212 is at least partially located in the positioning groove 1121. This achieves self-locking between the first latching part and the positioning post 1212, and the first latching part also achieves self-locking with the limiting strip 1211, thereby achieving self-locking in the closing direction of the cover 120, while facilitating the positioning of the elastic limiting member 116 and the limiting hole 123 located on the other side.

[0041] like Figure 1 and Figure 2 As shown, in one embodiment, the limiting strip 1211 has a second guide surface 12111 on one end face facing the cover plate 122. The second guide surface 12111 is located at the end of the limiting strip 1211 near the opening 1111, and the second guide surface 12111 is inclined in the direction away from the cover plate 122 in the direction near the opening 1111, so as to help the limiting strip 1211 and the first fastening part to be quickly positioned laterally, so as to facilitate the quick fastening of the first fastening part 112 and the second fastening part 121.

[0042] like Figure 2 and Figure 5 As shown, in one embodiment, the end face of the first latching part 112 facing away from the cover plate 122 is provided with a first guide surface 1122. The first guide surface 1122 is inclined in the direction away from the opening 1111 toward the direction closer to the cover plate 122, so as to help the limiting strip 1211 and the first fastening part be quickly positioned laterally through the first guide surface 1122, so as to facilitate the quick fastening of the first latching part 112 and the second latching part 121.

[0043] like Figure 2 As shown, in one embodiment, when the cover 120 closes the box body 110, the first latch 112 and the limiting strip 1211 abut against each other in the closing direction of the cover 120 to limit and position the movement path of the cover 120 in the closing direction.

[0044] To prevent the cover 122 from being opened under external force during transportation or use, such as Figure 1 As shown, in one embodiment, the wiring assembly 100 further includes a fastener 130. The housing 110 has at least one first mounting hole 114 located on the side of the opening 1111 near the elastic retaining member 116. The cover 120 has a second mounting hole 124 corresponding to and coaxially arranged with the first mounting hole 114. The fastener 130 passes through the second mounting hole 124 and is detachably connected to the first mounting hole 114, thereby making the connection between the housing 110 and the cover 120 more secure. In this embodiment, the fastener 130 is located on the same side of the elastic retaining member 116. In this embodiment, there are two fasteners 130 and two corresponding second mounting holes 124, with the two fasteners 130 located on opposite sides of the elastic retaining member 116, but this is not a limitation.

[0045] like Figure 1 As shown, in one embodiment, the wiring assembly 100 further includes a sealing ring 140, such as Figure 2 As shown, the box body 110 has a placement groove 115 provided around the opening 1111. The sealing ring 140 is at least partially located in the placement groove 115. When the cover 120 closes the box body 110, the sealing ring 140 is pressed between the box body 110 and the cover 120 in the closing direction of the cover 120. At this time, the sealing ring 140 is compressed, so that the placement cavity 111 formed by the box body 110 and the cover 120 is sealed, so that the sealing level meets the corresponding level requirements of the product.

[0046] In the wiring assembly 100 provided in the above scheme, during assembly, the first snap-fit ​​part 112 is aligned with the second snap-fit ​​part 121. Under the guidance of the first guide surface 1122 and the second guide surface 12111, the first snap-fit ​​part 112 and the second snap-fit ​​part 121 are fastened together and fixed. After the sealing ring 140 is installed in the placement groove 115, the side where the elastic limiting member 116 is located is pressed. The elastic limiting member 116 is compressed inward under the action of external force. When the limiting hole 123 is aligned with the elastic limiting member 116, the elastic limiting member 116 automatically returns and is embedded in the limiting hole 123, thereby limiting the closing of the cover 120 and the box 110 on opposite sides, thus restricting the movement of the cover 120 in all directions and ensuring that the cover 120 is firmly closed to the box 110. Then, the fastener 130 is installed to complete the assembly.

[0047] When it is necessary to open the cover, simply remove the fastener 130, press the elastic limiter 116 and pull the cover plate 122 upward in the opposite direction of the closing direction of the cover 120 to easily remove the cover 120.

[0048] The wiring assembly 100 provided in the above solution has a first latching part 112 and a second latching part 121 that engage on one side of the housing 110 and the cover 120, and an elastic limiting member 116 on the other side. The first latching part 112 and the second latching part 121 limit and secure the cover 120 and the housing 110 on the side where the first latching part 112 is located, and the elastic limiting member 116 limits and secures the cover 120 and the housing 110 on the side where the elastic limiting member 116 is located. The two work together to limit the cover 120 and the housing 110 on opposite sides, thereby restricting the movement of the cover 120 in all directions and making the cover 120 firmly close to the housing 110. Its installation and disassembly process is simple and quick, without the need to add hinges, buckles, etc., reducing production costs and disassembly difficulty.

[0049] 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.

[0050] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent 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 patent application should be determined by the appended claims.

Claims

1. A wiring assembly, characterized in that, The wiring assembly includes: The box body has an open placement cavity. The box body includes a first buckle part located on one side of the open and an elastic limiting member located on the side of the open opposite to the first buckle part. The elastic limiting member is configured to extend and retract along its own axis when subjected to external force. A lid is detachably fitted onto the box body, and when the lid is fitted onto the box body, it covers the opening. The lid includes a second snap-fit ​​part that snaps into the first snap-fit ​​part and a limiting hole that snaps into the elastic limiting member. The axial direction of the elastic limiting member is set at an angle to the closing direction of the lid. When the lid is fitted onto the box body, the first snap-fit ​​part and the second snap-fit ​​part are snapped together, and the elastic limiting member is partially inserted into the limiting hole.

2. The wiring assembly according to claim 1, characterized in that, The cover also includes a cover plate, and the second latching part includes a limiting strip that is parallel to and spaced apart from the cover plate. The first latching part is at least partially located on the path of the limiting strip moving along the closing direction of the cover, and when the cover closes the box, the first latching part is at least partially located between the limiting strip and the cover plate.

3. The wiring assembly according to claim 2, characterized in that, The second latching part further includes a positioning post, the axial direction of which is the same as the closing direction of the cover, and one end of the positioning post is connected to the cover plate, and the other end is connected to the limiting strip.

4. The wiring assembly according to claim 3, characterized in that, The first buckle portion is recessed with a positioning groove that is opposite to the positioning post. The positioning groove and the positioning post are arranged in a one-to-one correspondence. When the cover closes the box, the positioning post is at least partially located in the positioning groove.

5. The wiring assembly according to claim 2, characterized in that, The limiting strip has a second guide surface on one end face facing the cover plate. The second guide surface is located at the end of the limiting strip near the opening, and the second guide surface is inclined in the direction away from the cover plate in the direction near the opening.

6. The wiring assembly according to claim 2 or 5, characterized in that, The first buckle portion has a first guide surface on the end face away from the cover plate, and the first guide surface is inclined in the direction away from the opening toward the direction closer to the cover plate.

7. The wiring assembly according to claim 2, characterized in that, When the cover closes the box, the first snap-fit ​​part abuts against the limiting strip in the closing direction of the cover.

8. The wiring assembly according to claim 4, characterized in that, The wiring assembly further includes a fastener. The housing has at least one first mounting hole located on the side of the opening near the elastic limiting member. The cover has a second mounting hole corresponding to and coaxially arranged with the first mounting hole. The fastener passes through the second mounting hole and is detachably connected to the first mounting hole.

9. The wiring assembly according to claim 4, characterized in that, The wiring assembly also includes a sealing ring. The housing is provided with a placement groove surrounding the opening. The sealing ring is at least partially located in the placement groove. When the cover closes the housing, the sealing ring is pressed between the housing and the cover in the closing direction of the cover.

10. An inverter, characterized in that, Includes the wiring assembly as described in any one of claims 1 to 9.

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