CN-224233535-U - Power conversion device

Abstract

The present application relates to a power conversion device. The light guide device comprises a shell, a circuit board, a light guide unit and a light emitting unit, wherein the shell is provided with a containing cavity and a through hole, the through hole is communicated with the containing cavity, the shell comprises a limiting unit which is arranged on the inner wall surface of the containing cavity in a protruding mode, the circuit board is arranged in the containing cavity, the light emitting unit is arranged on the circuit board, the light guide unit is arranged in the through hole in a penetrating mode and covers the light emitting unit, and the limiting unit limits the light guide unit. Under the spacing effect of spacing unit, can improve the installation accuracy of light guide unit, effectively avoid leaking to the light emitting unit because of the casting glue of installation accuracy lower and lead to the holding intracavity to avoid making the light guide unit unable outwards transmission light because of the light emitting unit under the shielding effect of casting glue, consequently can effectively avoid the light emitting unit to break down under the influence of casting glue, thereby improve power conversion device's assembly yield.

Inventors

• YU HONGFENG

Assignees

• 上海摩瓦新能源科技有限公司

Dates

Publication Date

20260512

Application Date

20250416

Claims (14)

1. 1. A power conversion apparatus, comprising: The shell is provided with a containing cavity and a penetrating hole, the penetrating hole is communicated with the containing cavity, and the shell comprises a limiting unit which is convexly arranged on the inner wall surface of the containing cavity; a circuit board arranged in the accommodating cavity, and The light guide unit is arranged on the circuit board, the light guide unit penetrates through the through hole and covers the light emitting unit, and the limiting unit limits the light guide unit.
2. 2. The power conversion device of claim 1, further comprising at least one of: the limiting unit limits the light guide unit along the thickness direction of the shell; the limiting unit limits the light guide unit along the direction perpendicular to the thickness direction of the shell and the extending direction of the light guide unit.
3. 3. The power conversion device according to claim 1, wherein the limiting unit includes a first limiting member, and the first limiting member abuts against a surface of the light guiding unit, which is disposed opposite to the circuit board.
4. 4. A power conversion device according to claim 3, wherein the light guide unit comprises a light guide post and a cover member, the cover member covers the light emitting unit, the light guide post is disposed through the through hole and connected to the cover member, and the first limiting member is adapted to limit the cover member.
5. 5. The power conversion device according to claim 1, wherein the limiting unit further includes two second limiting members disposed at intervals in a direction perpendicular to both the thickness direction of the housing and the extending direction of the light guiding unit, the light guiding unit being disposed between the two second limiting members.
6. 6. The power conversion device according to claim 5, wherein the light guide unit includes a light guide rod penetrating through the through hole, and the second stopper abuts against the light guide rod.
7. 7. The power conversion device of claim 6, wherein the light guide unit further comprises an abutment ring disposed around the light guide post and abutting the second stop.
8. 8. The power conversion device according to claim 7, wherein a surface of the abutment ring abutting the second stopper is a plane.
9. 9. The power conversion device according to claim 1, further comprising a sealing member that is sleeved on the light guide unit, the sealing member being at least partially accommodated in the through hole and abutting between the light guide unit and the housing.
10. 10. The power conversion device of claim 9, wherein the seal comprises a seal body and a plurality of seal collars connected to each other, the seal body is sleeved on the light guide unit, the seal collars are disposed around the seal body, and the plurality of seal collars are disposed at intervals along an axial direction of the seal body.
11. 11. The power conversion device according to claim 9, wherein the light guide unit includes a light guide post and two stopper portions connected to each other, the light guide post is inserted into the through hole, the sealing member is sleeved on the light guide post, the stopper portions are disposed around the light guide post, and the sealing member is located between the two stopper portions.
12. 12. The power conversion device according to claim 1, wherein, The shell comprises a first shell and a second shell, wherein the first shell comprises a top plate and a first outer ring which is arranged on the top plate in a protruding mode, the second shell comprises a bottom plate and a second outer ring which is arranged on the bottom plate in a protruding mode, the first outer ring and the second outer ring are in mutual abutting connection, and the circuit board is arranged on the bottom plate; The through hole is formed in the first outer ring and the second outer ring, the limiting unit comprises a first limiting piece, and the first limiting piece is arranged on the top plate in a protruding mode.
13. 13. The power conversion device according to claim 12, wherein the first case further includes a first inner ring protruding from the top plate, the first outer ring is provided around the first inner ring, the second case further includes a second inner ring protruding from the bottom plate, the second outer ring is provided around the second inner ring, the first inner ring is inserted in a gap between the second outer ring and the second inner ring, the stopper unit includes a second stopper protruding from the second inner ring, and the through hole is further opened in the first inner ring and the second inner ring.
14. 14. The power conversion device according to claim 13, wherein the light guide unit includes a light guide pillar and a reinforcing protrusion, the light guide pillar is provided in the through hole, the reinforcing protrusion is provided on the light guide pillar in a protruding manner in a radial direction of the light guide pillar, and the reinforcing protrusion is at least partially accommodated in a gap between the second outer ring and the second inner ring.

Description

Power conversion device Technical Field The application relates to the technical field of new energy, in particular to a power conversion device. 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. The power conversion device comprises an indicator light which is used for emitting light to prompt the working state of the power conversion device. However, with the conventional power conversion device, the indicator lamp is easily broken down in the assembly process, so that the assembly yield of the power conversion device is reduced. Disclosure of utility model One technical problem solved by the present application is how to improve the assembly yield of a power conversion device. A power conversion apparatus, comprising: The shell is provided with a containing cavity and a penetrating hole, the penetrating hole is communicated with the containing cavity, and the shell comprises a limiting unit which is convexly arranged on the inner wall surface of the containing cavity; a circuit board arranged in the accommodating cavity, and The light guide unit is arranged on the circuit board, the light guide unit penetrates through the through hole and covers the light emitting unit, and the limiting unit limits the light guide unit. In one embodiment, at least one of the following schemes is further included: the limiting unit limits the light guide unit along the thickness direction of the shell; the limiting unit limits the light guide unit along the direction perpendicular to the thickness direction of the shell and the extending direction of the light guide unit. In one embodiment, the limiting unit includes a first limiting member, and the first limiting member abuts against a surface of the light guiding unit, which is opposite to the surface of the circuit board. In one embodiment, the light guiding unit includes a light guiding column and a covering member, the covering member covers the light emitting unit, the light guiding column is disposed in the through hole in a penetrating manner and is connected with the covering member, and the first limiting member is adapted to limit the covering member. In one embodiment, the limiting unit further comprises two second limiting members, the two second limiting members are arranged at intervals along a direction perpendicular to the thickness direction of the shell and the extending direction of the light guiding unit, and the light guiding unit is arranged between the two second limiting members. In one embodiment, the light guiding unit includes a light guiding column, the light guiding column is penetrating through the through hole, and the second limiting member abuts against the light guiding column. In one embodiment, the light guiding unit further comprises an abutment ring, and the abutment ring is arranged around the light guiding column and abuts against the second limiting member. In one embodiment, a surface of the abutting ring abutting against the second limiting piece is a plane. In one embodiment, the light guide unit further comprises a sealing member, wherein the sealing member is sleeved on the light guide unit, is at least partially accommodated in the through hole and is abutted between the light guide unit and the shell. In one embodiment, the sealing member comprises a sealing main body and a plurality of sealing convex rings which are connected with each other, the sealing main body is sleeved on the light guide unit, the sealing convex rings are arranged around the sealing main body, and the sealing convex rings are arranged at intervals along the axial direction of the sealing main body. In one embodiment, the light guiding unit includes a light guiding column and two stop parts that are connected to each other, the light guiding column is inserted into the through hole, the sealing member is sleeved on the light guiding column, the stop parts are disposed around the light guiding column, and the sealing member is located between the two stop parts. In one embodiment, the housing comprises a first shell and a second shell, the first shell comprising a top plate and a first outer ring protruding over the top plate; the second shell comprises a bottom plate and a second outer ring which is convexly arranged on the bottom plate, the first outer ring and the second outer ring are mutually abutted, and the circuit board is arranged on the bottom plate; The through hole is formed in the first outer ring and the second outer rin