Signal protection alternating current box

Abstract

The utility model discloses a signal protection AC box, relates to the wiring technology field, and comprises a housing, a first waterproof member, a second waterproof member and a packing nut, the housing is provided with a first chamber and a second chamber which are adjacent and spaced, the top of the first chamber and the top of the second chamber are respectively provided with a clamping claw, each clamping claw comprises an external thread, a counter bore and a necking part, and the first waterproof member and the second waterproof member are arranged on the housing. The counter bore is positioned between the external thread and the necking part; the first waterproof part is located at the top of the first cavity and can be clamped with the counter bore; the second waterproof piece is located at the top of the second cavity, and the second waterproof piece can be clamped and fixed with the counter bore and the necking part; the first chamber and the second chamber can separate a strong current power transmission signal from a transmitted power transmission signal, the first waterproof piece and the second waterproof piece are locked through the packing nut, the waterproof effect is achieved, the shell and the clamping claw are of an integrated structure, installation of the first waterproof piece, the second waterproof piece and the packing nut is facilitated, and the waterproof effect is achieved. And the problem of unreasonable structural design of the junction box can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of wiring, in particular to a signal protection exchange box. Background Art

[0002] The junction box is one of the electrical auxiliary materials. It is often used as a transition at the joint of wires (for example, when the line is long or the wire pipe needs to turn a corner). The wire pipe is connected to the junction box, and the wires in the wire pipe are connected in the junction box, which plays a role in protecting the wires and connecting the wires.

[0003] The cable connections outside the battery energy storage box also require a junction box for cable connection, but the existing junction boxes used for cable connection have problems with unreasonable structural design. For example, the junction box uses an aluminum shell, and the connection and installation of the aluminum shell and the nylon gland are too complicated and inconvenient to assemble; it is impossible to isolate the high-voltage transmission signal from the transmitted power transmission signal.

[0004] Therefore, how to avoid the problem of unreasonable structural design of the junction box is a technical problem that those skilled in the art currently need to solve. Utility Model Content

[0005] The purpose of the utility model is to provide a signal protection AC box, which is easy to assemble and can isolate and separate the strong power transmission signal from the transmitted power transmission signal, thereby avoiding the problem of unreasonable structural design of the junction box.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A signal protection exchange box, comprising:

[0008] The housing is provided with a first chamber and a second chamber adjacent to and spaced apart from each other, the tops of the first chamber and the second chamber are both provided with clamping claws, the clamping claws each including an external thread, a countersunk hole and a necked portion, the countersunk hole being located between the external thread and the necked portion;

[0009] a first waterproof member, located on the top of the first chamber and capable of engaging with the countersunk hole to prevent moisture from entering the first chamber;

[0010] a second waterproof member, located at the top of the second chamber, capable of being clamped and fixed with the countersunk hole and the necked portion to prevent moisture from entering the second chamber;

[0011] A locking nut rotatably sleeved on the external thread to limit the movement of the first waterproof member and the second waterproof member;

[0012] The housing and the clamping claws are an integrated structure.

[0013] Preferably, the clamping claw further includes a blade, which is located on the side of the external thread facing away from the shell, and is used to cooperate with the first waterproof component and the second waterproof component.

[0014] Preferably, the first waterproof component includes a first waterproof ring and a second waterproof ring arranged coaxially, the first waterproof ring is sleeved on the outer circumference of the second waterproof ring, and the bottom of the first waterproof ring is provided with a first clamping joint for engaging with the countersunk hole.

[0015] Preferably, the first waterproof ring and the second waterproof ring are interference fit.

[0016] Preferably, the second waterproof component is provided with a second snap joint and a draft angle. The second snap joint can be snap-fitted with the countersunk hole, and the draft angle is nested inside the necking portion to limit the second waterproof component from detaching from the clamping claw.

[0017] Preferably, the second waterproof component is further provided with a through hole extending along its own axial direction, and the through hole is used for passing cables.

[0018] Preferably, there are multiple blades, and the multiple blades are evenly arranged along the circumference of the clamping claw, and adjacent blades are spaced apart from each other. The multiple blades are all fitted to the outer circumference of the first waterproof ring and the second waterproof part, and the blades are interference fit with the first waterproof ring and the second waterproof part to fix the first waterproof ring and the second waterproof part.

[0019] Preferably, a clamping block and a limiting rib are provided at one end of the shell away from the clamping claw, the limiting rib is located between the first chamber and the second chamber, the gasket is connected to the clamping block and fixed by the limiting rib, and the gasket is used for installing the shell.

[0020] Preferably, the washer and the block are interference fit.

[0021] Preferably, the shell is made of thermoplastic resin material.

[0022] Compared with the above-mentioned background technology, the signal protection communication box provided by the present invention includes a shell, a first waterproof part, a second waterproof part and a locking nut. The shell is provided with a first chamber and a second chamber that are adjacent and spaced apart. The tops of the first chamber and the second chamber are provided with clamping claws. The clamping claws include external threads, countersunk holes and necked portions. The countersunk holes are located between the external threads and the necked portions. The first waterproof part is located at the top of the first chamber and can be snapped into place with the countersunk holes to prevent moisture from entering the first chamber. The second waterproof part is located at the top of the second chamber and can be snapped into place with the countersunk holes and necked portions to prevent moisture from entering the second chamber. The locking nut can be rotatably sleeved on the external threads to limit the movement of the first waterproof part and the second waterproof part. The shell and the clamping claw are an integrated structure.

[0023] Specifically, the adjacent and spaced first chamber and the second chamber can block the high-voltage transmission signal and the transmitted transmission signal from each other. The first chamber realizes the installation of the first waterproof part through the clamping claw on the top, and the second chamber realizes the installation of the second waterproof part through the clamping claw on the top. The first waterproof part and the second waterproof part are locked by the clamping nut to achieve a water-proof effect. The shell and the clamping claw are an integrated structure, which facilitates the installation of the first waterproof part, the second waterproof part and the clamping nut, thereby avoiding the problem of unreasonable structural design of the junction box. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0025] Figure 1 A cross-sectional view of a signal protection exchange box provided by an embodiment of the present utility model;

[0026] Figure 2 An exploded view of the signal protection exchange box provided by an embodiment of the present utility model;

[0027] Figure 3 A cross-sectional view of the structure of the first waterproof member provided in an embodiment of the present utility model;

[0028] Figure 4 A cross-sectional view of the structure of the second waterproof member provided in an embodiment of the present utility model;

[0029] Figure 5 A schematic structural diagram of a second waterproof member provided in an embodiment of the present utility model;

[0030] Figure 6 This is a schematic structural diagram of the gasket provided in an embodiment of the present utility model after installation.

[0031] in:

[0032] 100 - housing, 110 - first chamber, 120 - second chamber, 130 - clamping block, 140 - limiting rib;

[0033] 210-external thread, 220-counterbore, 230-neck portion, 240-blade;

[0034] 310-first waterproof ring, 311-first clamping joint, 320-second waterproof ring;

[0035] 400-second waterproof part, 410-second card joint, 420-draft angle, 430-through hole;

[0036] 500-locking nut;

[0037] 600-washer. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0040] In the description of the present invention, it should be understood that the terms "top", "bottom", "inside" and "outside" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the positions or elements referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limitations of the present invention.

[0041] The purpose of the utility model is to provide a signal protection AC box, which is easy to assemble and can isolate and separate the strong power transmission signal from the transmitted power transmission signal, thereby avoiding the problem of unreasonable structural design of the junction box.

[0042] To achieve the above objectives, the present invention provides the following technical solutions:

[0043] See also Figure 1 and Figure 2 This embodiment provides a signal protection exchange box, including a housing 100, a first waterproof component, a second waterproof component 400 and a locking nut 500.

[0044] The shell 100 is provided with a first chamber 110 and a second chamber 120 which are adjacent and spaced apart. The tops of the first chamber 110 and the second chamber 120 are provided with clamping claws, each of which includes an external thread 210, a countersunk hole 220 and a necked portion 230. The countersunk hole 220 is located between the external thread 210 and the necked portion 230.

[0045] It should be noted that the countersink 220 is provided on the top end face of the necked portion 230, and the external thread 210 is partially located on the outer periphery of the necked portion 230. The countersink 220 is preferably an annular countersink 220. The specific contour of the countersink 220 and the specifications of the external thread 210 can be adjusted according to actual conditions as long as the above-mentioned purpose can be achieved.

[0046] The first waterproof member is located at the top of the first chamber 110 and can be engaged with the countersunk hole 220 to prevent moisture from entering the first chamber 110 .

[0047] The second waterproof member 400 is located at the top of the second chamber 120 . The second waterproof member 400 can be snap-fitted and fixed to the countersunk hole 220 and the necked portion 230 to prevent moisture from entering the second chamber 120 .

[0048] It can be understood that the first waterproof component and the second waterproof component 400 are both waterproof structures adapted to the internal structure of the clamping claw, and the difference lies in the shape structure and connection method of the first waterproof component and the second waterproof component 400.

[0049] In this embodiment, the first waterproof component is preferably a hollow annular structure, which is limited by being engaged with the countersunk hole 220. The second waterproof component 400 is preferably an embedded structure that can be engaged with the countersunk hole 220 and the necked portion 230. Among them, the first waterproof component and the second waterproof component 400 are preferably made of rubber. The material of the first waterproof component and the second waterproof component 400 can also be adjusted according to actual conditions as long as the above-mentioned purpose can be achieved.

[0050] The locking nut 500 is rotatably mounted on the external thread 210 to limit the movement of the first waterproof component and the second waterproof component 400 .

[0051] In this embodiment, a fixed structure is provided inside the first chamber 110 and the second chamber 120, and the fixed structure can fix the cable located inside the first chamber 110 and the second chamber 120 and passing through the clamping claw to prevent the cable from rotating. Then, by rotating the clamping nut 500 sleeved on the external thread 210, the first waterproof part and the second waterproof part 400 are limited, and then the cable located inside the first waterproof part and the second waterproof part 400 is limited. A sensor is also provided on the top of the first chamber 110 and the second chamber 120 for detecting whether the clamping nut 500 is installed in place.

[0052] In addition, the clamping nut 500 is preferably a PG29 type clamping nut 500. The model of the clamping nut 500 can be adjusted according to actual conditions as long as the clamping nut 500 is compatible with the external thread 210.

[0053] The housing 100 and the clamping claw are an integrated structure.

[0054] Specifically, the adjacent and spaced first chamber 110 and the second chamber 120 can block the strong current transmission signal and the transmitted transmission signal from each other. The first chamber 110 realizes the installation of the first waterproof part through the clamping claw at the top, and the second chamber 120 realizes the installation of the second waterproof part 400 through the clamping claw at the top. The first waterproof part and the second waterproof part 400 are locked by the clamping nut 500 to achieve a water-proof effect. The shell 100 and the clamping claw are an integrated structure, which facilitates the installation of the first waterproof part, the second waterproof part 400 and the clamping nut 500, thereby avoiding the problem of unreasonable structural design of the junction box.

[0055] Preferably, the clamping claw further includes a blade 240 . The blade 240 is located on a side of the external thread 210 facing away from the housing 100 . The blade 240 is used to cooperate with the first waterproof component and the second waterproof component 400 .

[0056] It can be understood that the clamping claw also includes a blade 240, which is used to fit with the outer periphery of the first waterproof part and the second waterproof part 400, and is used to prevent the first waterproof part and the second waterproof part 400 from being excessively squeezed during the rotation of the tightening nut 500, thereby affecting the installation effect, wherein the blade 240 is preferably located on the side of the external thread 210 away from the shell 100, and the blade 240 extends in a direction parallel to the axial direction of the clamping claw.

[0057] See also Figure 3 Preferably, the first waterproof component includes a first waterproof ring 310 and a second waterproof ring 320 arranged coaxially, the first waterproof ring 310 is sleeved on the outer circumference of the second waterproof ring 320, and the bottom of the first waterproof ring 310 is provided with a first clamping joint 311 for clamping and mating with the countersunk hole 220.

[0058] In this embodiment, the first waterproof component includes a coaxially arranged first waterproof ring 310 and a second waterproof ring 320. The first waterproof ring 310 is sleeved on the outer periphery of the second waterproof ring 320. Another first waterproof component can be set according to actual needs, that is, only the first waterproof ring 310. The first waterproof ring 310 can enable cables with a wire diameter of 18-22AWG to pass through, and the second waterproof ring 320 can enable cables with a wire diameter of 22-28AWG to pass through. The two first waterproof components can be selected according to the wire diameter of the cable.

[0059] Preferably, the first waterproof ring 310 and the second waterproof ring 320 are interference fit.

[0060] It should be noted that the first waterproof ring 310 and the second waterproof ring 320 are preferably interference fit, and the interference fit is used to limit the relative rotation of the first waterproof ring 310 and the second waterproof ring 320. In another embodiment, a card groove can be provided on the inner periphery of the first waterproof ring 310, and an arc-shaped protrusion can be provided on the outer periphery of the second waterproof ring 320. The relative fixation of the first waterproof ring 310 and the second waterproof ring 320 is achieved by the snap-fitting of the card groove and the arc-shaped protrusion. A waterproof structure can be added at the snap-fitting point of the first waterproof ring 310 and the second waterproof ring 320 as needed to further enhance the waterproof effect.

[0061] See also Figure 4 Preferably, the second waterproof component 400 is provided with a second snap joint 410 and a draft angle 420. The second snap joint 410 can be snap-fitted with the countersunk hole 220, and the draft angle 420 is nested inside the necking portion 230 to limit the second waterproof component 400 from detaching from the clamping claw.

[0062] It can be understood that the second waterproof component 400 is provided with a second clamping joint 410. The second clamping joint 410 and the first clamping joint 311 are of the same type of structure and can be clamped and matched with the corresponding countersunk hole 220. The second waterproof component 400 is also provided with a draft angle 420 that is connected to the necking portion 230. The draft angle 420 is nested inside the necking portion 230 to limit the second waterproof component 400 from detaching from the clamping claw.

[0063] See also Figure 5 Preferably, the second waterproof component 400 is further provided with a through hole 430 extending along its own axial direction, and the through hole 430 is used for passing the cable.

[0064] The second waterproof component 400 is further provided with through holes 430 for passing cables. The number of through holes 430 can be adjusted according to actual conditions and is not specifically limited here, as long as the above-mentioned purpose can be achieved.

[0065] Preferably, there are multiple blades 240, and the multiple blades 240 are evenly arranged along the circumference of the clamping claw, and adjacent blades 240 are spaced apart from each other. The multiple blades 240 are all fitted to the outer periphery of the first waterproof ring 310 and the second waterproof part 400, and the blades 240 are interference fit with the first waterproof ring 310 and the second waterproof part 400 to fix the first waterproof ring 310 and the second waterproof part 400.

[0066] In this embodiment, there are multiple blades 240, and the multiple blades 240 are evenly arranged along the circumference of the clamping claw, which are used to tightly fit the outer periphery of the first waterproof part and the second waterproof part 400 to fix the first waterproof part and the second waterproof part 400. Adjacent blades 240 are spaced apart from each other to prevent the blades 240 from being damaged when the tightening nut 500 presses the first waterproof part and the second waterproof part 400. The blades 240 and the first waterproof ring 310 and the second waterproof part 400 are preferably interference fit.

[0067] See also Figure 6 Preferably, a clamping block 130 and a limiting rib 140 are provided at the end of the shell 100 away from the clamping claw. The limiting rib 140 is located between the first chamber 110 and the second chamber 120. The washer 600 is connected to the clamping block 130 and is fixed by the limiting rib 140. The washer 600 is used for the installation of the shell 100.

[0068] It can be understood that a clamping block 130 and a limiting rib 140 are provided at one end of the shell 100 away from the clamping claw. The clamping block 130 is located in the circumference of the shell 100, and the limiting rib 140 is located between the first chamber 110 and the second chamber 120. The gasket 600 is fixed by the clamping block 130 and the limiting rib 140 to install the shell 100.

[0069] In this embodiment, the first chamber 110 and the second chamber 120 share the same gasket 600. The shape of the gasket 600 is adapted to the bottom of the shell 100. Through unified installation and pre-pressing, the actual production and assembly process is simplified and disassembly and assembly are facilitated.

[0070] Preferably, the washer 600 and the block 130 are interference fit.

[0071] The washer 600 and the block 130 are preferably interference fit, and the fit between the washer 600 and the block 130 can also be adjusted according to actual conditions as long as the above purpose can be achieved.

[0072] Preferably, the housing 100 is made of thermoplastic resin material.

[0073] In this embodiment, the housing 100 is preferably made of a thermoplastic resin material. The thermoplastic resin material allows the housing 100 to have better insulation performance and flame retardancy as a whole.

[0074] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0075] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0076] The above is a detailed introduction to the embodiments provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only intended to help understand the method and core concept of the present invention. It should be noted that, for those skilled in the art, without departing from the principles of the present invention, various improvements and modifications may be made to the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A signal protection exchange box, characterized in that: include: A housing (100) is provided with a first chamber (110) and a second chamber (120) which are adjacent and spaced apart, and the tops of the first chamber (110) and the second chamber (120) are both provided with clamping claws, and the clamping claws each include an external thread (210), a countersunk hole (220) and a necking portion (230), and the countersunk hole (220) is located between the external thread (210) and the necking portion (230); A first waterproof component, located at the top of the first chamber (110) and capable of being engaged with the countersunk hole (220) to prevent moisture from entering the first chamber (110); A second waterproof member (400) is located at the top of the second chamber (120), and the second waterproof member (400) can be snap-fitted and fixed to the countersunk hole (220) and the constricted portion (230) to prevent the moisture from entering the second chamber (120); A locking nut (500) rotatably sleeved on the external thread (210) and used to limit the movement of the first waterproof component and the second waterproof component (400); The housing (100) and the clamping claw are an integrated structure.

2. The signal protection exchange box according to claim 1, characterized in that: The clamping claw further comprises a blade (240), the blade (240) being located on a side of the external thread (210) away from the housing (100), and the blade (240) being used for being connected in cooperation with the first waterproof component and the second waterproof component (400).

3. The signal protection exchange box according to claim 2, characterized in that: The first waterproof component comprises a first waterproof ring (310) and a second waterproof ring (320) which are coaxially arranged, the first waterproof ring (310) is sleeved on the outer circumference of the second waterproof ring (320), and the bottom of the first waterproof ring (310) is provided with a first clamping joint (311) for clamping and cooperating with the countersunk hole (220).

4. The signal protection exchange box according to claim 3, characterized in that: The first waterproof ring (310) and the second waterproof ring (320) are interference fit.

5. The signal protection exchange box according to claim 1, characterized in that: The second waterproof component (400) is provided with a second clamping joint (410) and a draft angle (420), wherein the second clamping joint (410) can be clamped and matched with the counterbore (220), and the draft angle (420) is nested inside the necking portion (230) to limit the second waterproof component (400) from being separated from the clamping claw.

6. The signal protection exchange box according to claim 5, characterized in that: The second waterproof component (400) is further provided with a through hole (430) extending along the axial direction of the second waterproof component, and the through hole (430) is used for passing cables.

7. The signal protection exchange box according to claim 3, characterized in that: There are a plurality of blades (240), and the plurality of blades (240) are evenly arranged along the circumference of the clamping claw, and adjacent blades (240) are spaced apart from each other. The plurality of blades (240) are all fitted to the outer circumference of the first waterproof ring (310) and the second waterproof component (400), and the blades (240) are interference fit with the first waterproof ring (310) and the second waterproof component (400) to fix the first waterproof ring (310) and the second waterproof component (400).

8. The signal protection exchange box according to claim 1, characterized in that: A clamping block (130) and a limiting rib (140) are provided at one end of the shell (100) away from the clamping claw. The limiting rib (140) is located between the first chamber (110) and the second chamber (120). A washer (600) is connected to the clamping block (130) and is fixed by clamping with the limiting rib (140). The washer (600) is used for installing the shell (100).

9. The signal protection exchange box according to claim 8, characterized in that: The washer (600) and the clamping block (130) are in interference fit.

10. The signal protection exchange box according to any one of claims 1 to 9, characterized in that: The shell (100) is specifically made of thermoplastic resin material.

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