Sealed waterproof cable structure and inverter comprising same

Abstract

The utility model discloses a sealing waterproof cable structure and an inverter comprising the same, and the sealing waterproof cable structure comprises a housing and a cable sealing positioning buckle assembly disposed on the housing. The cable sealing positioning buckle assembly comprises a cable injection molding SR and an outer side baffle ring body installed on one end side of the cable injection molding SR. The cable injection molding SR is integrally formed and comprises shell wall insertion ring columns at the two ends, an in-shell insertion ring column and a tongue clamping ring groove located between the shell wall insertion ring columns and the in-shell insertion ring column, the shell wall insertion ring columns are sleeved with sealing pressure pad rubber rings, and limiting insertion tongues are installed on the tongue clamping ring groove in a clamped mode. The utility model has the beneficial effects that the nut locking process can be reduced, an upper cover and a lower cover are not needed for pressing, the operation is simple, the hole sealing can be realized by preventing falling and extrusion, the sealing effect is better, the position is clamped through the limiting insertion tongue, the visual installation can be realized, and whether the lock is locked or not can be observed.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy field especially, it is a kind of sealing waterproof cable structure and inverter containing it. BACKGROUND

[0002] Inverter especially micro inverter needs to have good sealing performance, when the multicore cable and the main body shell of inverter are fixed, the sealing effect needs to be considered, wherein the multicore cable has the outer cladding surrounding multiple electric wires, the outside needs to be injection molded buckle end, the existing buckle end fixation and sealing are mostly realized sealing by the nut fastening after the injection molded terminal and box shell increase rubber pad, generally need artificial nut fastening, if nut cannot be fastened in narrow space, it is very inconvenient to realize, part of injection molded terminal is realized waterproof sealing by being clamped between upper cover and lower cover, limited by shell clamping structure, whether locking can not be controlled when installing, internal. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a kind of sealing waterproof cable structure and inverter containing it to solve the above problems.

[0004] The utility model realizes the above-mentioned purposes by the following technical solutions:

[0005] A kind of sealing waterproof cable structure, including shell and cable sealing positioning buckle assembly installed on the shell;The cable sealing positioning buckle assembly includes cable injection molding SR and the outer side blocking ring body installed at one end side of the cable injection molding SR;The cable injection molding SR is integrally formed, including the shell wall insertion ring column of both ends, shell inner insertion ring column and the tongue clamping position ring groove between both, the shell wall insertion ring column is provided with sealing pressure pad rubber ring, the tongue clamping position ring groove is provided with the limit insertion tongue of installation.

[0006] Further, the shell wall of the shell is provided with wire clamping position through hole, the wire clamping position through hole is provided on the shell wall insertion ring column, and the sealing pressure pad rubber ring is provided between the outer side blocking ring body and the shell.

[0007] Further, the limit insertion tongue is composed of tongue plate, limit clamping ring hole provided on the plate face of the tongue plate, and pressure setting end opening portion provided at the bottom of the limit clamping ring hole, and the limit clamping ring hole is matched with the tongue clamping position ring groove.

[0008] Further, the limit insertion tongue is provided between the shell inner insertion ring column and the inner side of the shell wall of the shell.

[0009] Further, the tongue clamping position ring groove is a polygonal ring groove.

[0010] Furthermore, both the cable injection molding SR and the outer retaining ring body are provided with communicating cable holes, and cables are inserted into the cable holes.

[0011] Furthermore, one end of the cable extends into the interior of the housing through the cable hole and has an exposed inner cable core.

[0012] Furthermore, the cable is integrally injection molded with the cable injection molding SR and the outer retaining ring.

[0013] This utility model also discloses an inverter that includes the aforementioned sealed and waterproof cable structure.

[0014] Furthermore, the inverter is a micro inverter.

[0015] The beneficial effects of this utility model are as follows: The sealed waterproof cable structure and the inverter containing it described in this utility model can reduce the process of locking the nut, and there is no need to press the upper and lower covers together. The operation is simple and can prevent it from falling off. The compression achieves hole sealing, and the sealing effect is better. The locking is achieved by the limiting tongue, which allows for visual installation and observation of whether it is locked. Attached Figure Description

[0016] Figure 1 This is a perspective view of a sealed and waterproof cable structure according to the present invention;

[0017] Figure 2 This is a cross-sectional schematic diagram of a sealed and waterproof cable structure according to the present invention;

[0018] Figure 3 This is a structural diagram of a cable sealing positioning buckle assembly for a sealed and waterproof cable structure as described in this utility model;

[0019] Figure 4 This is a schematic diagram of the limiting tongue of a sealed and waterproof cable structure described in this utility model.

[0020] The annotations in the attached figures are explained as follows: Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] like Figure 1 - Figure 4 As shown, a sealed waterproof cable structure consists of a housing 3 and a cable sealing positioning buckle assembly 1 installed on the housing 3.

[0023] The cable sealing positioning buckle assembly 1 comprises a cable injection molding SR (Strain Relief, stress relief device) 15 and an outer side blocking ring body 12 installed on one end side of the cable injection molding SR 15; the cable injection molding SR 15 is integrally formed and comprises a shell wall insertion ring column 11 at both ends, a shell inner insertion ring column 14 and a tongue clamping ring groove 13 located between the two; a sealing pressure pad rubber ring 5 is sleeved on the shell wall insertion ring column 11, and the sealing pressure pad rubber ring 5 is mainly used for extrusion pad setting to realize sealing and waterproof.

[0024] In one embodiment, the tongue clamping ring groove 13 is provided with a limiting insertion tongue 2, which is used for clamping and fixing the cable sealing positioning buckle assembly 1.

[0025] As shown in Figure 1 Figure 4 The utility model discloses the following more optimized specific structure:

[0026] A wire clamping hole 7 is formed in the shell wall of the shell 3, the wire clamping hole 7 is sleeved on the shell wall insertion ring column 11, and the sealing pressure pad rubber ring 5 is arranged between the outer side blocking ring body 12 and the shell 3, wherein the outer side blocking ring body 12 is arranged on the outer side of the shell 3. Wherein, the shell 3 refers to the shell of the inverter, and in one embodiment, the inverter is a micro inverter.

[0027] The limiting insertion tongue 2 is composed of a tongue plate 21, a limiting clamping ring hole 22 formed in the plate surface of the tongue plate 21 and a pressing end opening part 23 arranged at the bottom of the limiting clamping ring hole 22, wherein the limiting clamping ring hole 22 is matched with the tongue clamping ring groove 13 for clamping and setting. The tongue plate 21 can be a metal tongue plate, a plastic tongue plate or other tongue plates as long as the rigidity meets the requirements.

[0028] In one embodiment, the limiting insertion tongue 2 is arranged between the shell inner insertion ring column 14 and the inner side of the shell wall of the shell 3, and the clamping and fixing functions are realized through the cooperation of the shell inner insertion ring column 14, the inner side of the shell wall of the shell 3 and the tongue clamping ring groove 13.

[0029] The tongue clamping ring groove 13 is a polygonal ring groove, and in this embodiment, a hexagonal ring groove is adopted, which prevents the cable sealing positioning buckle assembly 1 from rotating after being clamped with the limiting clamping ring hole 22; in other embodiments, the tongue clamping ring groove 13 can also be a circular ring groove, and the corresponding limiting clamping ring hole 22 is an arc shape.

[0030] The cable injection molding SR 15 and the outer side blocking ring body 12 are both provided with a communication cable hole, and a cable 4 is inserted in the cable hole, and the cable 4 is integrally injection molded with the cable injection molding SR 15 and the outer side blocking ring body 12.

[0031] One end of the cable 4 extends to the inside of the shell 3 through the cable hole and is provided with an inner side exposed cable core 6, which is convenient for electrical connection with the internal inverter assembly. ​

[0032] The application further discloses an inverter comprising the sealing waterproof cable structure.

[0033] The sealing waterproof cable structure and the inverter comprising the same are characterized in that when installation is performed, the shell wall insertion ring column 11 on the cable sealing positioning buckle assembly 1 is sleeved with the sealing compression gasket rubber ring 5, then the cable is inserted into the inside of the shell 3 through the wire clamping position through hole 7 from the outside of the shell 3, the compression clamping is performed on the inside of the shell 3 through the limiting insertion tongue 2, the limiting insertion tongue 2 is clamped into the tongue clamping ring groove 13, the outside wall of the shell 3 is extruded to compress the sealing compression gasket rubber ring 5, clamping and limiting are performed, the polygonal structure is used to prevent the cable from rotating, extrusion is used to realize external waterproof sealing, and internal pouring glue overflow can also be prevented.

[0034] The above installation structure and mode can reduce the locking nut process, do not need to press the upper cover and the lower cover, are simple in operation, can prevent falling, realize hole sealing through extrusion, have better sealing effect, and are simple in clamping and limiting operation through the limiting insertion tongue 2.

[0035] It should be understood by those skilled in the art that the utility model is not limited by the above examples, and the above examples and the description in the specification are only used to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model.

Claims

1. A sealed, waterproof cable structure, characterized by: The sealing waterproof cable structure comprises a shell and a cable sealing positioning buckle assembly mounted on the shell; the cable sealing positioning buckle assembly comprises a cable injection molding SR and an outer side blocking ring body mounted on one end side of the cable injection molding SR; the cable injection molding SR is integrally formed and comprises shell wall insertion ring columns at both ends, an inner shell insertion ring column and a tongue clamping ring groove located between the shell wall insertion ring columns and the inner shell insertion ring column; a sealing compression gasket ring is sleeved on the shell wall insertion ring column; and a limiting insertion tongue is clamped on the tongue clamping ring groove.

2. A sealed waterproof cable structure according to claim 1, characterized in that: A wire clamping hole is formed in the shell wall of the shell, the wire clamping hole is sleeved on the shell wall insertion ring column, and the sealing compression gasket ring is arranged between the outer side blocking ring body and the shell.

3. The sealed and waterproof cable structure according to claim 1, wherein: The limiting insertion tongue comprises a tongue plate, a limiting clamping ring hole formed in the plate surface of the tongue plate and a compression inlet opening part arranged at the bottom of the limiting clamping ring hole; the limiting clamping ring hole is matched with the tongue clamping ring groove.

4. The sealed and waterproof cable structure according to claim 1, wherein: The limiting insertion tongue is arranged between the inner shell insertion ring column and the inner side of the shell wall of the shell.

5. The sealed and waterproofed cable structure according to claim 1, wherein: The tongue clamping ring groove is a polygonal ring groove or a circular ring groove.

6. The sealed and waterproofed cable structure according to claim 1, wherein: The cable injection molding SR and the outer side blocking ring body are both provided with a communication cable hole, and a cable is inserted in the cable hole.

7. A sealed waterproof cable structure according to claim 6, wherein: One end of the cable extends to the inside of the shell through the cable hole and is provided with an inner side exposed cable core.

8. A sealed waterproof cable structure according to claim 6, wherein: The cable is integrally injection molded with the cable injection molding SR and the outer side blocking ring body.

9. An inverter, characterized by: The sealing waterproof cable structure comprises a shell and a cable sealing positioning buckle assembly mounted on the shell; the cable sealing positioning buckle assembly comprises a cable injection molding SR and an outer side blocking ring body mounted on one end side of the cable injection molding SR; the cable injection molding SR is integrally formed and comprises shell wall insertion ring columns at both ends, an inner shell insertion ring column and a tongue clamping ring groove located between the shell wall insertion ring columns and the inner shell insertion ring column; a sealing compression gasket ring is sleeved on the shell wall insertion ring column; and a limiting insertion tongue is clamped on the tongue clamping ring groove.

10. An inverter according to claim 9, characterized in that: A wire clamping hole is formed in the shell wall of the shell, the wire clamping hole is sleeved on the shell wall insertion ring column, and the sealing compression gasket ring is arranged between the outer side blocking ring body and the shell. The limiting insertion tongue comprises a tongue plate, a limiting clamping ring hole formed in the plate surface of the tongue plate and a compression inlet opening part arranged at the bottom of the limiting clamping ring hole; the limiting clamping ring hole is matched with the tongue clamping ring groove. The limiting insertion tongue is arranged between the inner shell insertion ring column and the inner side of the shell wall of the shell. The tongue clamping ring groove is a polygonal ring groove or a circular ring groove. The cable injection molding SR and the outer side blocking ring body are both provided with a communication cable hole, and a cable is inserted in the cable hole. One end of the cable extends to the inside of the shell through the cable hole and is provided with an inner side exposed cable core. The cable is integrally injection molded with the cable injection molding SR and the outer side blocking ring body. The sealing waterproof cable structure comprises a shell and a cable sealing positioning buckle assembly mounted on the shell; the cable sealing positioning buckle assembly comprises a cable injection molding SR and an outer side blocking ring body mounted on one end side of the cable injection molding SR; the cable injection molding SR is integrally formed and comprises shell wall insertion ring columns at both ends, an inner shell insertion ring column and a tongue clamping ring groove located between the shell wall insertion ring columns and the inner shell insertion ring column; a sealing compression gasket ring is sleeved on the shell wall insertion ring column; and a limiting insertion tongue is clamped on the tongue clamping ring groove. A wire clamping hole is formed in the shell wall of the shell, the wire clamping hole is sleeved on the shell wall insertion ring column, and the sealing compression gasket ring is arranged between the outer side blocking ring body and the shell. The limiting insertion tongue comprises a tongue plate, a limiting clamping ring hole formed in the plate surface of the tongue plate and a compression inlet opening part arranged at the bottom of the limiting clamping ring hole;

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