Waterproof structure and inverter

Abstract

The utility model discloses a waterproof structure and inverter, waterproof structure includes the casing, the casing top is equipped with the cover, the casing upper end is equipped with the support station, the cover lower middle part is equipped with the fixed frame, the support station is opened with the fixed frame matched fixed slot, be equipped with the sealing assembly in the fixed slot, both sides in the casing are equipped with L type heat dissipation board, L type heat dissipation board is equipped with a plurality of equidistance arrangement's radiating fins in the side wall of casing side, the casing is opened with the matching through -groove of radiating fin, the radiating fin extends to the outside of casing through the through -groove. The utility model discloses through setting sealing assembly, can effectively improve the sealing between casing and cover, through setting L type heat dissipation board and radiating fin, can export the heat in the casing fast, has realized good heat dissipation effect, has given consideration to waterproof performance and heat dissipation performance simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of inverter technology, and in particular to a waterproof structure and inverter. Background Technology

[0002] An inverter is a converter that transforms direct current (DC) power into constant frequency and voltage (or frequency and voltage regulated) alternating current (AC). It consists of an inverter bridge, control logic, and filter circuits, and is widely used in various electrical devices. Existing waterproof structures typically use sealing rings, but the sealing effect is not ideal, and leaks easily occur after long-term use. Furthermore, electronic devices generate heat during operation, and waterproof structures often have poor heat dissipation performance, affecting the lifespan and operational stability of the equipment. Therefore, we propose a waterproof structure and inverter. Utility Model Content

[0003] To address the aforementioned problems, this invention provides a waterproof structure and inverter. This invention solves the problem that existing waterproof structures typically use sealing rings for sealing, but the sealing effect is not ideal, and water leakage easily occurs after long-term use. Furthermore, electronic devices generate heat during operation, and waterproof structures often have poor heat dissipation performance, affecting the service life and operational stability of the equipment.

[0004] A waterproof structure according to this utility model includes a shell, a cover on the top of the shell, a support platform at the upper end of the shell, a fixing frame at the lower center of the cover, a fixing groove matching the fixing frame on the support platform, a sealing component in the fixing groove, L-shaped heat dissipation plates on both sides inside the shell, a plurality of equally spaced heat dissipation fins on the side of the L-shaped heat dissipation plate near the side wall of the shell, a through groove matching the heat dissipation fins on the shell, and the heat dissipation fins extending through the through groove to the outside of the shell. The sealing assembly includes a sealing ring, with two shear grooves on each side wall of the sealing ring, a limiting strip in the lower center of the sealing ring, and a limiting groove matching the limiting strip on the support platform located below the fixing groove.

[0005] Preferably, the cover has connection holes at all four corners, the support platform has a connecting block that matches the connection holes, and the connecting block has a threaded hole in the middle of its upper part.

[0006] Preferably, mounting holes are provided at all four corners of the lower end of the housing.

[0007] Preferably, the L-shaped heat sink and the heat sink fins are an integral structure, and the L-shaped heat sink is located inside the housing and is attached to the circuit board.

[0008] Preferably, the contact surface between the heat dissipation fins and the housing is provided with a waterproof membrane.

[0009] Preferably, the sealing ring and the limiting strip are an integral structure, and the sealing ring is made of EPDM rubber.

[0010] Preferably, the cross-section of the limiting strip is inverted T-shaped.

[0011] On the other hand, an inverter includes the aforementioned waterproof structure.

[0012] Compared with related technologies, this utility model has the following beneficial effects: This invention provides a waterproof structure and inverter. By incorporating a sealing assembly, a sealing ring is installed within a fixed groove. When the cover is placed on the housing, the fixing frame embeds into the fixed groove and compresses the sealing ring, causing it to elastically deform, thus achieving a seal between the housing and the cover. Shear grooves on both sides of the sealing ring provide sufficient deformation space when compressed, preventing damage due to excessive compression and improving the sealing effect. The L-shaped heat sink adheres to the circuit board inside the housing, rapidly transferring heat generated by the circuit board to the heat dissipation fins. The heat dissipation fins extend through a through-groove to the outside of the housing, facilitating heat dissipation to the external environment, improving heat dissipation efficiency, and ensuring the normal operation of the electronic equipment. This invention, through the sealing assembly, effectively improves the seal between the housing and the cover. The L-shaped heat sink and heat dissipation fins rapidly dissipate heat from the housing, achieving excellent heat dissipation while simultaneously ensuring both waterproof and heat dissipation performance. Attached Figure Description

[0013] 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 protection scope of the present utility model.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the exploded structure of this utility model; Figure 3 This is a cross-sectional view of the housing and sealing assembly of this utility model; Figure 4 This is a schematic diagram of part A of the present invention.

[0015] In the diagram: 1. Shell 2. Cover 3. Support platform 4. Fixing frame 5. Fixing groove 6. Sealing assembly 61. Sealing ring 62. Shear groove 63. Limiting strip 7. Limiting groove 8. L-shaped heat sink 9. Heat sink fins 10. Through groove 11. Connecting hole 12. Connecting block 13. Threaded hole 14. Mounting hole. Detailed Implementation

[0016] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0017] like Figure 1-4 As shown, this utility model is a waterproof structure, including a shell 1, a cover 2 on the top of the shell 1, a support platform 3 at the upper end of the shell 1, a fixing frame 4 in the middle of the lower part of the cover 2, a fixing groove 5 on the support platform 3 that matches the fixing frame 4, the fixing frame 4 can be inserted into the fixing groove 5, the cover 2 can cover the shell 1 through the interaction between the fixing frame 4 and the fixing groove 5, a sealing component 6 is provided in the fixing groove 5, the sealing component 6 can seal the contact surface between the fixing frame 4 and the support platform 3, L-shaped heat dissipation plates 8 are provided on both sides of the shell 1, the L-shaped heat dissipation plates 8 have multiple equidistant heat dissipation fins 9 on the side of the shell 1 near the side wall, the shell 1 has through grooves 10 that match the heat dissipation fins 9, the heat dissipation fins 9 extend through the through grooves 10 to the outside of the shell 1, when the circuit board inside the shell 1 is working, heat is conducted to the heat dissipation fins 9 through the L-shaped heat dissipation plates 8, and then dissipated to the external environment by the heat dissipation fins 9, thereby effectively ensuring the heat dissipation performance of the inverter.

[0018] The sealing assembly 6 includes a sealing ring 61. Two shear grooves 62 are provided on both side walls of the sealing ring 61. A limiting strip 63 is provided in the lower center of the sealing ring 61. The support platform 3 is located below the fixing groove 5 and has a limiting groove 7 that matches the limiting strip 63. The limiting strip 63 is engaged inside the limiting groove 7. Through the interaction between the limiting strip 63 and the limiting groove 7, the sealing assembly 6 can be stably installed inside the fixing groove 5. When the fixing frame 4 compresses the sealing ring 61, the shear grooves 62 cause the sealing ring 61 to deform, resulting in an interference fit between the sealing ring 61 and the inner wall of the fixing groove 5. Therefore, the sealing ring 61 effectively seals the fixing frame 4 and the support platform 3.

[0019] The cover 2 has four connecting holes 11 at its upper corners. The support platform 3 has connecting blocks 12 that match the connecting holes 11. The connecting block 12 has a threaded hole 13 in the upper center. The connecting holes 11 and the threaded holes 13 match each other. Through the connecting holes 11 and the threaded holes 13, the cover 2 and the shell 1 can be stably connected by bolts.

[0020] The housing 1 has mounting holes 14 at each of its four lower corners, through which the inverter can be fixedly installed.

[0021] The L-shaped heat sink 8 and the heat sink fins 9 are an integral structure. The L-shaped heat sink 8 is located inside the housing 1 and is attached to the circuit board. The attachment of the L-shaped heat sink 8 to the circuit board effectively improves the efficiency of heat conduction.

[0022] The contact surface between the heat dissipation fins 9 and the housing 1 is provided with a waterproof membrane. The waterproof membrane effectively prevents water vapor from entering the housing 1 through the through groove 10, thus ensuring the waterproof performance of the inverter.

[0023] The sealing ring 61 and the limiting strip 63 are an integral structure. The sealing ring 61 is made of EPDM rubber, which has good elasticity, aging resistance and water resistance, effectively ensuring the service life of the inverter.

[0024] The limiting strip 63 has an inverted T-shaped cross section. The inverted T-shaped structure fits more tightly with the limiting groove 7, which can effectively prevent the sealing ring 61 from shifting during installation and use.

[0025] An inverter including the aforementioned waterproof structure.

[0026] Specifically, the sealing ring 61 is installed in the fixing groove 5 through the cooperation of the limiting strip 63 and the limiting groove 7. The circuit board is attached to the L-shaped heat sink 8. Then, the cover 2 is placed on the housing 1, so that the fixing frame 4 is embedded in the fixing groove 5 and squeezes the sealing ring 61. Finally, the cover 2 is fixed to the housing 1 by bolts passing through the connecting hole 11 and engaging with the threaded hole 13. During use, the heat generated by the circuit board is conducted to the heat dissipation fins 9 through the L-shaped heat sink 8, and then dissipated to the external environment by the heat dissipation fins 9. The sealing ring 61 undergoes elastic deformation under the compression of the fixing frame 4, realizing the seal between the housing 1 and the cover 2, preventing moisture from entering the interior of the housing 1.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waterproof structure, comprising a shell (1), characterized in that, The housing (1) is provided with a cover (2) on top, a support platform (3) is provided at the upper end of the housing (1), a fixing frame (4) is provided in the middle of the lower part of the cover (2), a fixing groove (5) matching the fixing frame (4) is provided on the support platform (3), a sealing component (6) is provided in the fixing groove (5), an L-shaped heat sink (8) is provided on both sides of the housing (1), a plurality of heat sink fins (9) are provided on the side of the L-shaped heat sink (8) near the side wall of the housing (1), a through groove (10) matching the heat sink fins (9) is provided on the housing (1), and the heat sink fins (9) extend through the through groove (10) to the outside of the housing (1); The sealing assembly (6) includes a sealing ring (61), and two shear grooves (62) are provided on both sides of the sealing ring (61). A limiting strip (63) is provided in the middle of the lower part of the sealing ring (61). The support platform (3) is located below the fixing groove (5) and has a limiting groove (7) that matches the limiting strip (63).

2. The waterproof structure according to claim 1, characterized in that, The cover (2) has four connecting holes (11) at the top corners, and the support platform (3) has a connecting block (12) that matches the connecting hole (11). The connecting block (12) has a threaded hole (13) in the middle of its upper part.

3. The waterproof structure according to claim 1, characterized in that, The housing (1) has mounting holes (14) at all four corners of its lower end.

4. A waterproof structure according to claim 1, characterized in that, The L-shaped heat sink (8) and the heat sink fins (9) are an integral structure. The L-shaped heat sink (8) is located inside the housing (1) and is attached to the circuit board.

5. A waterproof structure according to claim 1, characterized in that, The contact surface between the heat dissipation fins (9) and the shell (1) is provided with a waterproof membrane.

6. A waterproof structure according to claim 1, characterized in that, The sealing ring (61) and the limiting strip (63) are an integral structure, and the sealing ring (61) is made of EPDM rubber.

7. A waterproof structure according to claim 1, characterized in that, The cross section of the limiting strip (63) is an inverted T-shape.

8. An inverter, characterized in that, Includes the waterproof structure as described in any one of claims 1 to 7.

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