Switch box

Abstract

The utility model discloses a switch box, which comprises a shell and a cover plate fixedly connected with the shell. A containing cavity is defined by the shell and the cover plate, and an electromagnetic lock is arranged in the containing cavity. The bottom of the shell is provided with a plurality of drainage holes, rainwater entering the switch box is drained in time, and the electromagnetic lock is prevented from being in a ponding environment for a long time. The electromagnetic lock is provided with a shell and a lock rod, anti-rust layers are arranged on the first end face and the second end face of the shell, and the lock rod is arranged in the electromagnetic lock in a penetrating mode through through holes correspondingly formed in the first end face and the second end face. The rust-proof layer can prevent rust of the electromagnetic lock shell from spreading to the connecting position of the shell and the lock rod, and the situation that the lock rod cannot work normally due to rust is avoided.

Description

Technical Field

[0001] This utility model relates to the field of charging equipment accessories, specifically to a switch box. Background Technology

[0002] Currently, new energy electric vehicles are becoming the choice of more and more users, and the supporting charging equipment products are also constantly being innovated. Electromagnetic locks are components of a locking device that prevents the charging interface from being disconnected under load during charging. In rainy or humid environments, rainwater can easily enter the switch box through the gaps in the charging gun. Electromagnetic locks are prone to rust after being corroded by moisture, affecting their normal operation. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a switch box with good drainage function, thereby improving the functional stability and service life of electromagnetic locks in humid environments.

[0004] This utility model proposes a switch box, including a housing and a cover plate fixedly connected to the housing, wherein the housing and the cover plate enclose a cavity; and a plurality of drain outlets are provided at the bottom of the housing.

[0005] An electromagnetic lock is fixedly installed inside the accommodating cavity; the electromagnetic lock has a housing and a locking rod, the housing has a first end face and a second end face arranged in parallel, and through holes for the locking rod to pass through are opened on the first end face and the second end face; both the first end face and the second end face are provided with a rust-proof layer.

[0006] In one embodiment, the rust-preventive layer is a WD-40 rust-preventive coating.

[0007] In one embodiment, the housing has a housing sidewall with a plurality of snap-fit ​​interfaces; the cover plate has a cover plate sidewall with a plurality of snap-fit ​​protrusions, the snap-fit ​​interfaces match the snap-fit ​​protrusions, and the snap-fit ​​protrusions snap into the snap-fit ​​interfaces, thereby fixing the housing and the cover plate together.

[0008] In one embodiment, a first fixing plate is provided inside the housing near the first end face, and a second fixing plate is provided inside the housing near the second end face; the first fixing plate and the second fixing plate are arranged parallel to each other, and the distance between the first fixing plate and the second fixing plate matches the length of the housing, so as to realize the limiting and locking of the electromagnetic lock along the axial direction of the locking rod.

[0009] In one embodiment, the first fixing plate has an arc-shaped groove for the locking rod to pass through.

[0010] In one embodiment, the sidewall of the housing is provided with a plurality of limiting ribs protruding toward the outer shell.

[0011] The switch box of this utility model includes a housing and a fixedly connected cover plate. The housing and cover plate form a receiving cavity, within which an electromagnetic lock is installed. Several drainage holes are provided at the bottom of the housing to promptly drain rainwater entering the switch box, preventing the electromagnetic lock from being in a water-accumulated environment for extended periods. The electromagnetic lock has a shell and a locking rod. A rust-proof layer is provided on the first and second end faces of the shell. The locking rod passes through corresponding through holes on the first and second end faces and is inserted into the electromagnetic lock. The rust-proof layer prevents rust from spreading from the electromagnetic lock shell to the connection point between the shell and the locking rod, avoiding rust that could cause the locking rod to malfunction. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0013] Figure 1 This is a front view of an embodiment of the switch box of this utility model;

[0014] Figure 2 This is an exploded view of one embodiment of the main body of this utility model;

[0015] Figure 3 This is a three-dimensional structural schematic diagram of an embodiment of the housing of this utility model;

[0016] Figure 4 This is a top view of an embodiment of the housing of this utility model;

[0017] Figure 5 yes Figure 4 A sectional view along line AA.

[0018] Figure 6 This is a three-dimensional structural schematic diagram of an embodiment of the cover plate of this utility model;

[0019] Figure 7 This is a three-dimensional structural diagram of an embodiment of the electromagnetic lock of this utility model;

[0020] Figure 8 This is a front view of an embodiment of the electromagnetic lock of this utility model;

[0021] Explanation of icon numbers:

[0022] label name label name label name 1 case 14 Limiting reinforcement 3 Electromagnetic lock 11 shell sidewall 15 Drain 31 shell 11a Card interface 2 cover plate 311 First end face 12 First fixing plate 21 Cover plate sidewall 312 Second end face 13 Second fixing plate 21a snap-fit ​​protrusion 32 Lock bar

[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] 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.

[0025] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; taking "A and / or B" as an example, it includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] This utility model proposes a switch box. Please refer to... Figures 1 to 8The device includes a housing 1 and a cover plate 2 fixedly connected to the housing 1. The housing 1 and the cover plate 2 enclose a cavity. The bottom of the housing 1 has several drain outlets 15. An electromagnetic lock 3 is fixedly installed in the cavity. The electromagnetic lock 3 has a housing 31 and a locking rod 32. The housing 31 has a first end face 311 and a second end face 312 arranged in parallel. The first end face 311 and the second end face 312 have through holes for the locking rod 32 to pass through. The surfaces of the first end face 311 and the second end face 312 are both provided with a rust-proof layer.

[0029] In this embodiment, the housing 1 has a recessed receiving groove, and the cover plate 2 covers the opening of the receiving groove, forming a receiving cavity with the housing 1. The electromagnetic lock 3 is installed in the receiving cavity. Several drain holes 15 are provided at the bottom of the housing 1. When water seeps into the switch box, the drain holes 15 can drain the water out of the switch box in a timely manner, preventing the electromagnetic lock 3 from being in close contact with water for a long time, thus preventing corrosion. It is understood that the several drain holes 15 can be configured as drain holes or drain grooves of different shapes and sizes, spaced apart at the bottom of the housing 1. The electromagnetic lock 3 has a housing 31, and a movable locking rod 32 is provided inside the housing 31. The first end face 311 and the second end face 312 of the housing 31 are arranged parallel to each other, and the locking rod 32 is arranged axially perpendicular to the first end face 311. Through holes are respectively provided on the first end face 311 and the second end face 312, and the locking rod 32 can extend out of the housing 31 through the through holes. Understandably, the through holes on the first end face 311 and the second end face 312 are positioned at corresponding locations, preferably at the center of the end faces. When the electromagnetic lock 3 is in prolonged contact with water or in a humid environment, the outer casing 31 is prone to rusting due to moisture penetration. When the rust on the first end face 311 and the second end face 312 spreads to the contact point with the locking rod 32, the locking rod 32 will malfunction, affecting the service life and reliability of the electromagnetic lock 3. In this embodiment, both the surfaces of the first end face 311 and the second end face 312 are provided with an anti-rust layer to prevent rusting at the connection points of the first end face 311, the second end face 312, and the locking rod 32, thus ensuring that the electromagnetic lock 3 can function normally in a humid environment.

[0030] Furthermore, the rust-proof layer is a WD-40 rust-proof coating.

[0031] Specifically, WD-40 is sprayed onto the surfaces of the first end face 311 and the second end face 312 to remove moisture and water from the electromagnetic lock 3 and form a dense protective film on the surface, which is the anti-rust layer. This anti-rust layer gives the electromagnetic lock 3 good resistance to high and low temperatures and humid environments, ensuring the normal use of the electromagnetic lock 3 in different working environments.

[0032] Further, please refer to Figures 1 to 6The housing 1 has a housing side wall 11, on which multiple snap-fit ​​interfaces 11a are provided; the cover plate 2 has a cover plate side wall 21, on which multiple snap-fit ​​protrusions 21a are provided. The snap-fit ​​interfaces 11a match the snap-fit ​​protrusions 21a, and the snap-fit ​​protrusions 21a snap into the snap-fit ​​interfaces 11a, so that the housing 1 and the cover plate 2 are fixedly connected.

[0033] Specifically, the positions of the snap-fit ​​protrusions 21a and the snap-fit ​​interfaces 11a correspond to each other. The shape and size of the snap-fit ​​protrusions 21a match the shape and size of the snap-fit ​​interfaces 11a. The snap-fit ​​protrusions 21a are respectively snapped into the snap-fit ​​interfaces 11a to make the housing 1 and the cover plate 2 snap together. Multiple snap-fit ​​interfaces 11a are provided and distributed at intervals on the side wall 11 of the housing, making the connection between the housing 1 and the cover plate 2 more stable. The switch box is designed as an assembly of the housing 1 and the cover plate 2, making the maintenance of the switch box more convenient.

[0034] Further, please refer to Figure 2 , Figure 3 and Figure 5 A first fixing plate 12 is provided inside the housing 1 near the first end face 311, and a second fixing plate 13 is provided inside the housing 1 near the second end face 312. The first fixing plate 12 and the second fixing plate 13 are arranged in parallel, and the distance between the first fixing plate 12 and the second fixing plate 13 matches the length of the housing 31, so as to realize the limiting and locking of the electromagnetic lock 3 along the axial direction of the locking rod 32.

[0035] Specifically, the first fixing plate 12 and the second fixing plate 13 are arranged in parallel, with the second fixing plate 13 closely attached to the second end face 312. The distance between the first fixing plate 12 and the second fixing plate 13 matches the length of the outer shell 31 along the axial direction of the locking rod 32, thus limiting the electromagnetic lock 3 to be installed between the first fixing plate 12 and the second fixing plate 13 to prevent the outer shell 31 from displacing along the axial direction of the locking rod 32.

[0036] Further, please refer to Figure 3 The first fixing plate 12 has an arc-shaped groove for the locking rod 32 to pass through.

[0037] Specifically, the arc-shaped groove can be set as a U-shaped groove that matches the shape and diameter of the outer wall of the locking rod 32, providing support and limiting the locking rod 32.

[0038] Further, please refer to Figure 3 and Figure 5 The side wall 11 of the shell has several limiting ribs 14 protruding towards the outer shell 31.

[0039] Specifically, the limiting rib 14 abuts against the outer shell 31 to provide further limiting and fixing for the electromagnetic lock 3, preventing the electromagnetic lock 3 from shaking and displacing within the shell 1.

[0040] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. A switch box, characterized in that The utility model relates to a waterproof and rustproof electromagnetic lock, including: A shell (1) and the cover plate (2) fixed connection with the shell (1), the shell (1) and the cover plate (2) enclosed formation hold cavity, the shell (1) bottom is equipped with a plurality of drainage port (15); Electromagnetic lock (3) is fixedly installed in the hold cavity, the electromagnetic lock (3) has the shell (31) and lock rod (32), the shell (31) has the first end surface (311) and the second end surface (312) of parallel arrangement, the first end surface (311) and the second end surface (312) are equipped with the through -hole for passing through the lock rod (32) on, the first end surface (311) and the second end surface (312) surface are equipped with rust -proof layer.

2. The switch box of claim 1, wherein, The rust -proof layer is WD -40 rust -proof coating.

3. The switch box of claim 1, wherein, The shell (1) has shell side wall (11), and the shell side wall (11) is equipped with a plurality of clamping interfaces (11a), the cover plate (2) has cover plate side wall (21), and the cover plate side wall (21) is equipped with a plurality of clamping protrusions (21a), the clamping interface (11a) is matched with the clamping protrusion (21a), the clamping protrusion (21a) is clamped into the clamping interface (11a), so that the shell (1) is fixedly connected with the cover plate (2).

4. The switch box of claim 3, wherein, The shell (1) is equipped with the first fixed plate (12) near the first end surface (311) inside, and the shell (1) is equipped with the second fixed plate (13) near the second end surface (312) inside, the first fixed plate (12) is matched with the second fixed plate (13) parallel arrangement, and the distance between the first fixed plate (12) and the second fixed plate (13) is matched with the length of the shell (31), so as to realize the axial location of the electromagnetic lock (3) along the lock rod (32) and clamps solid.

5. The switch box of claim 4, wherein, The first fixed plate (12) is equipped with the arc slot for passing through the lock rod (32).

6. The switch box of claim 3, wherein, The shell side wall (11) of the shell (1) is equipped with a plurality of limiting ribs (14) towards the shell (31).

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