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CN-224233989-U - Power conversion device

CN224233989UCN 224233989 UCN224233989 UCN 224233989UCN-224233989-U

Abstract

A power conversion device (10) comprises a shell (100) which is enclosed into a containing cavity (130), wherein a pouring opening (1111) and an exhaust opening (1121) are formed in the shell (100), the pouring opening (1111) and the exhaust opening (1121) are communicated with the containing cavity (130), and a circuit board (200) which is arranged in the containing cavity (130), wherein the circuit board (200) is provided with a first surface (210) for installing electronic components, and the pouring opening (1111) is closer to the first surface (210) than the exhaust opening (1121).

Inventors

  • YU YINFEI

Assignees

  • 上海摩瓦新能源科技有限公司

Dates

Publication Date
20260512
Application Date
20240722
Priority Date
20240523

Claims (19)

  1. 1. A power conversion apparatus, comprising: A shell surrounding the cavity, a pouring gate and an exhaust port arranged on the shell and communicated with the cavity, and The circuit board is arranged in the accommodating cavity and is provided with a first surface for mounting electronic components, the pouring opening is closer to the first surface relative to the exhaust opening, and the first surface is arranged towards the pouring opening and the exhaust opening along the direction perpendicular to the first surface; The housing also includes a connector assembly, the housing having a mounting side for mounting the connector assembly, the pouring spout being disposed proximate the mounting side, the housing having a first corner where two sides meet, the vent being disposed proximate the first corner.
  2. 2. The power conversion device of claim 1, wherein the sprue and the exhaust are separated by Δh in a direction perpendicular to the first face.
  3. 3. The power conversion device according to claim 1, wherein the first face has a blank area where no electronic component is mounted, and the pouring opening falls on the blank area along an orthographic projection in a direction perpendicular to the first face.
  4. 4. The power conversion device according to claim 1, wherein the first face has a direct current region for mounting direct current electronic components and an alternating current region for mounting alternating current electronic components, and wherein the orthographic projection of the pouring opening falls on the direct current region and the orthographic projection of the exhaust opening falls on the alternating current region in a direction perpendicular to the first face.
  5. 5. The power conversion device according to claim 2, wherein Δh has a value ranging from 10mm to 15mm.
  6. 6. The power conversion device of claim 1, wherein the exhaust port is circular.
  7. 7. The power conversion device of claim 1, wherein the housing is a contoured structure comprising a first region and a second region, the first region being closer to the first face than the second region, the exhaust port being disposed in the second region proximate the first corner.
  8. 8. The power conversion device of claim 1, wherein the housing is a contoured structure comprising a first region and a second region, the first region being closer to the first face than the second region, the pouring orifice being disposed in the first region, the exhaust orifice being disposed in the second region.
  9. 9. The power conversion device of claim 8, wherein the first region includes a second corner having a rounded corner, the gate being disposed proximate the second corner, the gate being rounded.
  10. 10. The power conversion device of claim 8, wherein the second region includes a third corner, the exhaust port being disposed proximate the third corner.
  11. 11. The power conversion device of claim 1, wherein centers of both the sprue and the exhaust port are maintained at a preset distance, the preset distance ranging in value from 120mm to 200mm.
  12. 12. The power conversion device of claim 1, wherein the housing includes a first shell and a second shell that together enclose the receiving cavity, the sprue and the exhaust port both being disposed in the first shell, the circuit board being carried on the second shell.
  13. 13. The power conversion device of claim 12, wherein the second housing defines an annular groove disposed around the circuit board and cooperating with a flange on the first housing for receiving a sealing material.
  14. 14. The power conversion device of claim 12, wherein the second housing includes a stop for carrying the circuit board, the stop having first and second stop surfaces connected at an angle, the circuit board having a second surface opposite the first surface, the first stop surface abutting the second surface in a direction perpendicular to the first surface such that a gap exists between the circuit board and the second housing in a direction perpendicular to the first surface, the second stop surface abutting the circuit board in a direction perpendicular to the first surface.
  15. 15. The power conversion device of claim 14, wherein the limiting member is an edge limiting member, the edge limiting member is disposed at an edge of the second housing, and the second limiting surface of the edge limiting member abuts against an edge of the circuit board, so that a flow channel communicating the gap is formed between the edge of the circuit board and the second housing.
  16. 16. The power conversion device of claim 14, wherein the limiting member is a middle limiting member disposed in the middle of the second housing, the middle limiting member includes a supporting member and a pillar disposed in the middle of the supporting member, a first limiting surface of the middle limiting member is an upper surface of the supporting member, a second limiting surface of the middle limiting member is an outer surface of the pillar, and the pillar penetrates the circuit board.
  17. 17. The power conversion device of claim 1, further comprising a seal for sealing off the pouring orifice and the exhaust orifice.
  18. 18. The power conversion device according to claim 1, further comprising an indicator light, the indicator light comprising a light emitting portion and a sealing portion, the light emitting portion being provided on the first surface, the sealing portion being covered on the light emitting portion and being bonded to the first surface.
  19. 19. The power conversion device of claim 18, wherein the indicator light further comprises a light guide post coupled to the seal for directing the light signal of the light emitting portion to an exterior surface of the housing.

Description

Power conversion device RELATED APPLICATIONS The present disclosure claims priority from chinese patent application No. 2024106539813, entitled "power conversion device and method of making same," filed on month 23 of 2024, incorporated herein by reference in its entirety. Technical Field The present disclosure relates to the field of new energy technologies, and in particular, to a power conversion device and a method for manufacturing the same. Background With the development of new energy technology, solar energy is widely applied to daily production and life with the advantages of no pollution, sustainable utilization and the like. Generally, solar light energy can be converted into electric energy through a photovoltaic power generation technology, and direct current generated by the photovoltaic power generation technology is converted into alternating current through a power conversion device, and the alternating current can be made available electric energy and input into a power grid through a connector. In order to enable the power conversion device to be used in a variety of harsh environments, it is often necessary to inject a casting solution into the power conversion device to seal and provide protection. However, with conventional power conversion devices, there is typically a disadvantage in that the casting solution is not uniformly filled. Disclosure of Invention One technical problem addressed by the present disclosure is how to improve the casting uniformity of a power conversion device. A first aspect of the present disclosure provides a power conversion apparatus, comprising: A shell surrounding the cavity, a pouring gate and an exhaust port arranged on the shell and communicated with the cavity, and The circuit board is arranged in the accommodating cavity and is provided with a first surface for mounting electronic components, and the pouring opening is closer to the first surface relative to the exhaust opening. A second aspect of the present disclosure provides a manufacturing method for processing the above power conversion device, including the steps of: Setting the power conversion device to be a first angle by taking a horizontal plane as a reference plane, wherein the pouring opening is lower in the vertical direction relative to the exhaust opening; pouring casting liquid into the containing cavity through the pouring opening and And plugging the pouring gate and the exhaust port. The details of one or more embodiments of the disclosure are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the invention will be apparent from the description and drawings, and from the claims. Drawings For a better description and illustration of embodiments and/or examples of those inventions disclosed herein, reference may be made to one or more of the accompanying drawings. Additional details or examples used to describe the drawings should not be construed as limiting the scope of the disclosed invention, the presently described embodiments and/or examples, and any of the presently understood modes of carrying out the invention. Fig. 1 is a schematic perspective view of a power conversion device according to a first prior art. Fig. 2 is a schematic perspective view of a second prior art power conversion device. Fig. 3 is a schematic perspective view of a power conversion device according to an embodiment. Fig. 4 is a schematic perspective view of the power conversion device shown in fig. 3 in another view. Fig. 5 is a schematic diagram of a first exemplary exploded structure of the power conversion device shown in fig. 3. Fig. 6 is a schematic diagram of a second exemplary exploded structure of the power conversion device shown in fig. 3. Fig. 7 is an enlarged schematic view of the structure of fig. 6 at a. Fig. 8 is a schematic perspective sectional structure of the power conversion device shown in fig. 3. Fig. 9 is a schematic plan view of the power conversion device shown in fig. 3. Fig. 10 is a schematic perspective view of the power conversion device shown in fig. 3 tilted with respect to a horizontal plane. FIG. 11 is a process flow diagram of a method for manufacturing the power conversion device of FIG. 3 according to an embodiment. Detailed Description In order that the above-recited objects, features and advantages of the present disclosure will become more readily apparent, a more particular description of the disclosure will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure. The present disclosure may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the disclosure, and therefore the disclosure is not to be limited to the specific embodiments disclosed below. In the description of the presen