Housing assembly of inverter and inverter

Abstract

The utility model provides a housing assembly of an inverter and the inverter. The housing assembly of the inverter comprises a housing and a sealing cover. The shell is provided with a wiring port and a plurality of mounting columns, the wiring port communicates with the interior and the exterior of the shell, the mounting columns are arranged around the wiring port, and the two ends of each mounting column are provided with a first mounting part located on the inner side of the shell and a second mounting part located on the outer side of the shell correspondingly; the first mounting part is used for being connected with a functional component of the inverter; and the sealing cover is arranged on the outer side of the shell, seals the wiring port and is connected with the second mounting part. Compared with the prior art, in the shell assembly of the inverter, the functional assembly and the sealing cover share the mounting column, so that the number of parts is reduced, the mounting structure is simplified, and the cost is reduced; and the coaxiality of the functional assembly and the sealing cover can be improved, so that the wire connection is more stable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of electronic equipment technology, specifically to an inverter housing assembly and an inverter. Background Technology

[0002] An inverter is a converter that transforms direct current (DC) power into alternating current (AC) power of fixed frequency and voltage or variable frequency and voltage. It consists of an inverter bridge, control logic, and filter circuits. It is widely used in air conditioners, home theaters, electric grinders, power tools, sewing machines, DVDs, VCDs, computers, televisions, washing machines, range hoods, refrigerators, video recorders, massagers, fans, lighting, etc. For example, when driving to work or traveling, an inverter can be connected to a battery to power appliances and various tools.

[0003] Inverters typically include a communication board to enable communication and interconnection with other devices. For example, they can communicate with battery packs to monitor battery charge and temperature in real time, ensuring safe system operation. Inverters can also communicate with the power grid to monitor and manage the grid, ensuring stable power supply. Users can view real-time information such as inverter output power, grid connection status, and battery charge via a mobile app or computer software to understand the system's operating status. This not only enables interconnection between inverters and other devices but also allows for remote monitoring and management of inverters, as well as interoperability between inverters, enhancing the system's intelligence, security, and reliability.

[0004] Currently, inverters typically have a communication board cover on their casing. This cover is used to partially seal the wiring ports on the casing. External communication cables need to pass through the communication board cover and enter the casing through the wiring ports before connecting to the communication board. Since the communication board cover and the communication board are each mounted on the casing using their respective mounting structures, and these structures are independent and unrelated, the number of required parts increases, resulting in higher costs. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings and deficiencies in the prior art and to provide an inverter housing assembly and an inverter.

[0006] One embodiment of this utility model provides a housing assembly for an inverter, including: a housing and a cover;

[0007] The housing is provided with a wiring port and multiple mounting posts. The wiring port connects the inside and outside of the housing. The multiple mounting posts are arranged around the wiring port. Each mounting post has a first mounting part located inside the housing and a second mounting part located outside the housing. The first mounting part is used to connect with the functional components of the inverter.

[0008] The cover is disposed on the outside of the housing and closes the wiring port, and is connected to the second mounting part.

[0009] In some optional embodiments, the first mounting part is a first threaded hole, and the functional component is provided with a first through hole corresponding to the first threaded hole and a first screw passing through the first through hole. The functional component is fixed on the mounting post by the first screw threadedly engaging with the first threaded hole.

[0010] In some optional embodiments, the second mounting part is a second threaded hole, and the cover is provided with a second through hole corresponding to the second threaded hole and a second screw passing through the second through hole. The cover is fixed on the mounting post by the threaded engagement of the second screw and the second threaded hole.

[0011] In some alternative embodiments, a sealing gasket is provided between the cover and the housing, the sealing gasket being arranged around the wiring port.

[0012] In some alternative embodiments, the cover is provided with a wiring hole, and the axial direction of the mounting post is parallel to the direction from the wiring hole to the wiring opening.

[0013] In some alternative implementations, the mounting post is mounted on the housing by riveting.

[0014] In some optional embodiments, the side of the mounting post is provided with a first limiting part and a groove arranged sequentially along the axial direction of the mounting post, the first limiting part and the groove both extending circumferentially along the mounting post, and a portion of the outer shell is located within the groove.

[0015] In some alternative embodiments, the side of the mounting post is provided with a second limiting portion extending circumferentially along the mounting post, and the first limiting portion and the second limiting portion together surround each other to form the groove.

[0016] In some alternative embodiments, a guide ramp is formed in the groove, the guide ramp being located on the side of the groove away from the first limiting portion, gradually moving away from the first limiting portion in the radial direction of the mounting post.

[0017] One embodiment of the present invention provides an inverter, including: a functional component and a housing assembly of an inverter as described above, wherein the functional component is disposed inside the housing and located on one side of the wiring port, and is assembled with the first mounting part.

[0018] Compared to existing technologies, the inverter housing assembly of this invention reduces the number of parts, simplifies the installation structure, and lowers costs by allowing the functional components and the cover to share mounting posts. Furthermore, it improves the coaxiality of the functional components and the cover, making the wire connections more stable and reliable.

[0019] To provide a clearer understanding of this invention, the specific embodiments of the invention will be described below in conjunction with the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the housing assembly and functional components of an inverter according to an embodiment of the present invention;

[0021] Figure 2 This is an exploded view of the housing assembly and functional components of an inverter according to an embodiment of the present invention;

[0022] Figure 3 This is a cross-sectional view of the mounting post according to an embodiment of the present invention;

[0023] Figure 4 This is a cross-sectional view of the housing assembly and functional components of an inverter according to an embodiment of the present invention;

[0024] Figure 5 for Figure 4 The enlarged view at point A is shown below;

[0025] Figure 6 This is a partial cross-sectional view of the outer casing and mounting post according to an embodiment of the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 10. Housing; 11. Wiring port; 12. Mounting post; 121. First mounting part; 122. Second mounting part; 123. First limiting part; 124. Groove; 125. Second limiting part; 126. Guide slope; 20. Cover; 21. Second screw; 22. Wiring hole; 30. Functional component; 31. First screw; 40. Wire; 50. Sealing gasket. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. In the description of the present utility model, unless otherwise stated, "a plurality of" means two or more, and "a number" means one or more. In addition, unless otherwise stated, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In the description of this utility model, references to terms such as "one embodiment," "some alternative implementations," or "some optional embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] In existing technologies, inverters typically have a communication board cover on their casing. External communication cables need to pass through the communication board cover and enter the casing before connecting to the communication board. Since the communication board cover and the communication board are mounted on the casing separately via mounting structures—for example, the communication board cover needs to be connected to multiple first studs mounted on the casing via multiple screws, and the communication board also needs to be connected to multiple second studs mounted on the casing via multiple screws—this increases the number of studs required on the casing, leading to higher costs and a more complex structure.

[0033] In this invention, by allowing the functional components and the cover to share the same mounting post, the number of mounting posts installed on the outer casing can be reduced, thereby simplifying the installation structure and reducing costs; moreover, it can improve the coaxiality of the functional components and the cover, making the wire connection more stable and reliable.

[0034] Please see Figure 1 One embodiment of the present invention provides a housing assembly for an inverter, comprising: a housing 10 and a cover 20.

[0035] Please see Figures 2 to 5 The housing 10 is provided with a wiring port 11 and multiple mounting posts 12. The wiring port 11 connects the interior and exterior of the housing 10. The multiple mounting posts 12 are arranged around the wiring port 11. Each end of the mounting post 12 is provided with a first mounting part 121 located inside the housing 10 and a second mounting part 122 located outside the housing 10. The first mounting part 121 is used to connect with the functional component 30 of the inverter. The cover 20 is arranged on the outside of the housing 10, and closes the wiring port 11, and is connected to the second mounting part 122. Both the cover 20 and the functional component 30 can be installed through the mounting posts 12, which helps to reduce the number of parts, simplify the structure of the housing 10, reduce product manufacturing costs, and improve production efficiency by reducing the number of parts that need to be installed.

[0036] Functional component 30 needs to be connected to wires 40 outside the housing 10. Wires 40 pass sequentially through the cover 20 and the wiring port 11, and then are electrically connected to functional component 30. Functional component 30 can be selected from suitable components according to actual needs. For example, in this embodiment, functional component 30 is a communication board and wires 40 are communication lines. Of course, in other embodiments, functional component 30 can also be a component that performs other functions, such as a control circuit board, etc.

[0037] Please see Figure 3 and Figure 5The specific structure of the first mounting part 121 can be selected according to actual needs. For example, in some optional embodiments, the first mounting part 121 is a first threaded hole, and the cover 20 is provided with a second through hole corresponding to the second threaded hole and a second screw 21 passing through the second through hole. The cover 20 is fixed on the mounting post 12 by the threaded engagement of the second screw 21 and the second threaded hole, thereby realizing the detachable installation of the functional component 30. The first screw 31 is simple and quick to assemble, which is beneficial to improving the installation speed. Of course, the first mounting part 121 can also be selected with other suitable structures according to the teachings of this utility model. For example, the first mounting part 121 is a snap groove, and the functional component 30 is provided with a snap fastener that engages with the snap groove; or, the first mounting part 121 is a threaded post, and the functional component 30 is provided with a through hole for the threaded post to pass through and a nut that engages with the threaded post. The nut restricts the functional component 30 on the threaded post.

[0038] Please see Figure 3 and Figure 5 The specific structure of the second mounting part 122 can be selected according to actual needs. For example, in some optional embodiments, the second mounting part 122 is a second threaded hole, and the cover 20 is provided with a second through hole corresponding to the second threaded hole and a second screw 21 passing through the second through hole. The cover 20 is fixed to the mounting post 12 by the threaded engagement of the second screw 21 and the second threaded hole. Of course, the second mounting part 122 can also be selected with other suitable structures according to the teachings of this utility model. For example, the second mounting part 122 is a snap groove, and the cover 20 is provided with a snap fastener that engages with the snap groove; or, the second mounting part 122 is a threaded post, and the cover 20 is provided with a through hole for the threaded post to pass through and a nut that engages with the threaded post. The nut restricts the functional component 30 on the threaded post.

[0039] Please see Figure 2 In some optional embodiments, a sealing gasket 50 is provided between the cover 20 and the housing 10. The sealing gasket 50 is arranged around the wiring port 11. The sealing gasket 50 is used to improve the sealing performance between the cover 20 and the housing 10, preventing dust, liquids, etc. from entering the wiring port 11 through the gap between the cover 20 and the housing 10, thereby improving the safety protection performance of the functional component 30. The sealing gasket 50 can be a flexible rubber gasket or a silicone gasket, and is not limited to this example. When the cover 20 is assembled with the second threaded hole by the second screw 21, the second screw 21 can pass through the sealing gasket 50, thereby preventing the sealing gasket 50 from shifting its position and improving the stability of the sealing gasket 50.

[0040] Please see Figure 5The wire 40 needs to pass through the cover 20 and then connect to the functional component 30. Therefore, the position of the wire 40 will be affected by the cover 20 and the functional component 30. Since the cover 20 and the functional component 30 are both set on the mounting post 12, the positional correlation between the cover 20 and the functional component 30 is strong. The cover 20, the mounting post 12 and the functional component 30 are connected together, which can improve the positional stability among the three, thereby making the position of the wire 40 more stable, making the connection of the wire 40 reliable, and improving the quality of the inverter. Furthermore, in some optional embodiments, the cover 20 is provided with a wiring hole 22, and the axial direction of the mounting post 12 is parallel to the direction from the wiring hole 22 to the wiring port 11. The wire 40 actually passes through the wiring hole 22 of the cover 20, then through the wiring port 11 and connects to the functional component 30. Therefore, the direction of the wire 40 matches the axial direction of the mounting post 12. The mounting post 12 connects the cover 20 and the functional component 30, improving the coaxiality of the cover 20 and the functional component 30, thereby improving the coaxiality of the wire 40 relative to the wiring hole 22 and the functional component 30. Moreover, the main support point of the wire 40 is also located on the connection between the wiring hole 22 and the functional component 30. When the functional component 30 and the cover 20 shake during use, because the functional component 30 and the cover 20 are connected together with the mounting post 12, the functional component 30 and the cover 20 remain on the same axis, thereby avoiding the situation where the functional component 30 and the cover 20 are misaligned and displaced, which would pull the wire 40, thus improving the connection stability of the wire 40.

[0041] Please see Figure 6 The specific method of mounting post 12 can be selected according to actual needs. For example, in some optional embodiments, mounting post 12 is installed on housing 10 by riveting, thereby improving the stability of mounting post 12 installation and thus improving the stability of functional component 30 and cover 20. Of course, mounting post 12 can also be installed and fixed in other ways, not limited to riveting. For example, mounting post 12 can be directly formed by the structure of housing 10; or, mounting post 12 can be inserted into housing 10, and then two nuts can be installed on mounting post 12, with the two nuts arranged on the inner and outer sides of housing 10 respectively. The two nuts cooperate to clamp housing 10 to achieve fastening of mounting post 12; or, mounting post 12 can be threadedly connected to mounting holes on housing 10 to achieve fixing of mounting post 12, and there are no limitations on this example.

[0042] Please see Figure 3 and Figure 6In some optional embodiments, the side of the mounting post 12 is provided with a first limiting part 123 and a groove 124 arranged sequentially along the axial direction of the mounting post 12. Both the first limiting part 123 and the groove 124 extend circumferentially along the mounting post 12, and a portion of the outer shell 10 is located within the groove 124. During riveting, the mounting post 12 passes through the hole on the outer shell 10, and then the first limiting part 123 presses the outer shell 10 so that a portion of the structure of the outer shell 10 enters the groove 124, thereby limiting the mounting post 12 and fixing the mounting post 12 to the outer shell 10.

[0043] Please see Figure 3 and Figure 6 To facilitate the formation of the groove 124, in some optional embodiments, a second limiting portion 125 extending circumferentially along the side of the mounting post 12 is provided. The first limiting portion 123 and the second limiting portion 125, facing each other, together form the groove 124. After the mounting post 12 is riveted, a portion of the outer shell 10 is located between the first limiting portion 123 and the second limiting portion 125. Of course, in other embodiments, the groove 124 can also be formed by mold during the casting of the mounting post 12, or by cutting.

[0044] Please see Figure 3 and Figure 6 In some optional embodiments, a guide slope 126 is formed within the groove 124. The guide slope 126 is located on the side of the groove 124 away from the first limiting portion 123, gradually moving away from the first limiting portion 123 in the radial direction of the mounting post 12. In this embodiment, the guide slope 126 is located on the second limiting portion 125. When riveting the mounting post 12, the first limiting portion 123 compresses the outer shell 10, causing a portion of the outer shell 10 to deform toward the groove 124. The guide slope 126 can guide the deformed portion of the outer shell 10 to extend into the groove 124 and guide the portion of the outer shell 10 located in the groove 124 to deform toward the first limiting portion 123, so that the deformed portion of the outer shell 10 can fully enter the groove 124, increasing the portion of the outer shell 10 located in the groove 124 and improving the stability of the mounting post 12 after riveting.

[0045] The aforementioned inverter housing assembly can be applied to an inverter, comprising: a functional component 30 and an inverter housing assembly as described above. The functional component 30 is disposed within the housing 10 and located on one side of the wiring port 11, and is assembled with the first mounting portion 121.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A housing assembly for an inverter, characterized in that, include: Outer casing and cap; The housing is provided with a wiring port and multiple mounting posts. The wiring port connects the inside and outside of the housing. The multiple mounting posts are arranged around the wiring port. Each mounting post has a first mounting part located inside the housing and a second mounting part located outside the housing. The first mounting part is used to connect with the functional components of the inverter. The cover is disposed on the outside of the housing and closes the wiring port, and is connected to the second mounting part.

2. The inverter housing assembly according to claim 1, characterized in that: The first mounting part is a first threaded hole. The functional component is provided with a first through hole corresponding to the first threaded hole and a first screw passing through the first through hole. The functional component is fixed on the mounting post by threading the first screw with the first threaded hole.

3. The inverter housing assembly according to claim 1, characterized in that: The second mounting part is a second threaded hole. The cover is provided with a second through hole corresponding to the second threaded hole and a second screw passing through the second through hole. The cover is fixed on the mounting post by the threaded engagement of the second screw and the second threaded hole.

4. The inverter housing assembly according to claim 1, characterized in that: A sealing gasket is provided between the cover and the outer shell, and the sealing gasket is arranged around the wiring port.

5. The housing assembly of an inverter according to any one of claims 1 to 4, characterized in that: The cover is provided with a wiring hole, and the axial direction of the mounting post is parallel to the direction from the wiring hole to the wiring opening.

6. The housing assembly of an inverter according to any one of claims 1 to 4, characterized in that: The mounting post is installed on the outer casing by riveting.

7. The inverter housing assembly according to claim 6, characterized in that: The side of the mounting post is provided with a first limiting part and a groove arranged sequentially along the axial direction of the mounting post. Both the first limiting part and the groove extend circumferentially along the mounting post, and part of the outer shell is located in the groove.

8. The inverter housing assembly according to claim 7, characterized in that: The side of the mounting post is provided with a second limiting part extending circumferentially along the mounting post, and the first limiting part and the second limiting part together surround each other to form the groove.

9. The inverter housing assembly according to claim 7, characterized in that: A guide slope is formed in the groove, and the guide slope is located on the side of the groove away from the first limiting part, gradually moving away from the first limiting part in the radial direction of the mounting post.

10. An inverter, characterized in that, include: The functional component and the housing assembly of an inverter as described in any one of claims 1 to 9, wherein the functional component is disposed within the housing and located on one side of the wiring port, and is assembled with the first mounting portion.

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