Cover structure for junction box

Abstract

The invention relates to a junction box (1) having at least one housing (10) for interconnecting at least one conductor cable (30) for transmitting electrical power, at least one first conductor inlet opening (11) for placing one of the conductor cables (30) on the housing (10), at least one secondary conductor inlet opening (12) for placing the other of the conductor cables (30), at least one current bar (15), the invention relates to a current bar (15) having a conductive feature extending between a first conductor inlet opening (11) and a secondary conductor inlet opening (12), at least one first connection chamber (13) arranged between the current bar (15) and the first conductor inlet opening (11), at least one second connection chamber (14) arranged between the current bar (15) and the secondary conductor inlet opening (12), at least one spring (16) arranged between the current bar (15) and the secondary conductor inlet opening (12), the conductor cable (30) is allowed to be in contact with the current bar (15) in the first connection chamber (13) and the second connection chamber (14), and the cover (20) is connected to at least one of the first connection chamber (13) and the second connection chamber (14) so as to serve as a cover on at least one of the first connection chamber (13) and the second connection chamber (14).

Description

Technical Field

[0001] The present invention is a junction box having at least one housing for interconnecting at least one conductor cable for transmitting power, at least one first conductor entrance opening for placing one of the conductor cables on the housing, at least one secondary conductor entrance opening for placing the other conductor cable, at least one current bar having a conductive feature extending between the first conductor entrance opening and the secondary conductor entrance opening, at least one first connection chamber disposed between the current bar and the first conductor entrance opening, at least one second connection chamber disposed between the current bar and the secondary conductor entrance opening, at least one spring in the first connection chamber and the second connection chamber allowing the conductor cable to contact the current bar, and at least one cover connected to at least one of the first connection chamber and the second connection chamber so as to serve as a cover for at least one of them. Background Art

[0002] When it comes to electricity, the device that connects two different cables is called a junction box. The use of this product is also mandatory to ensure safety, especially in electrical circuits. There are many types of junction boxes. According to their structure, there are feed-through junction boxes, neutral junction boxes, grounding junction boxes, fuse junction boxes, cut and disconnect junction boxes, sensor and actuator junction boxes, and special types of junction boxes. At the same time, the junction box is diversified according to the type of connection.

[0003] For the safety of the connection, the volume in the connection slot must be limited and the entire cable or part of the wire must not protrude from the terminal box. In the terminal boxes of the prior art, this function is provided by bending the extension extending from the current bar or by extending the shell towards the part that needs to be restricted. This limiting factor ensures that the wire carrying the current does not cause danger by staying in the closed part. Due to the cover, in particular, the stranded conductor cable and the spring are prevented from coming out of the terminal box. The structure that provides this limiting effect in the prior art has some disadvantages. In the solution of bending the current bar, the waste rate is high and a relatively large mold is required; in the solution of extending the shell, a complex injection molded shell mold with precision machining is required. Providing protection for the limiting factor also brings some negative effects. Since the terminal box is not completely symmetrical, a separate cover design is required to cover each connection slot. The fact that there are many different types of covers on this terminal box causes problems and confusion in the manufacture and logistics of the covers.

[0004] As a result, all of the above disadvantages make it possible to implement new embodiments in the related technical field. Summary of the invention

[0005] The present invention relates to a junction box, which is used to eliminate the above disadvantages and bring new advantages to the relevant technical field.

[0006] An object of the present invention is to provide a cover which is easy to install on a junction box and subsequently use.

[0007] Another object of the present invention is to provide a cover on the junction box to cover the spring and the cable.

[0008] Another object of the present invention is to provide a junction box having a uniform cover.

[0009] In order to achieve all the objects described above and in the following detailed description, the present invention is a junction box having at least one housing for interconnecting at least one conductor cable for transmitting power; at least one first conductor inlet opening for placing one of the conductor cables on the housing; at least one secondary conductor inlet opening for placing another of the conductor cables; at least one current bar having a conductive feature extending between the first conductor inlet opening and the secondary conductor inlet opening; at least one first connection chamber disposed between the current bar and the first conductor inlet opening; at least one second connection chamber disposed between the current bar and the secondary conductor inlet opening; at least one spring in the first connection chamber and the second connection chamber allowing the conductor cable to contact the current bar; at least one cover connected to at least one of the first connection chamber and the second connection chamber to serve as a cover on at least one of the first connection chamber and the second connection chamber. Therefore, its novelty lies in that the covers covering the first connection chamber and the second connection chamber are provided in the form of at least one first cover and at least one second cover formed identically to each other. Therefore, the cover structure on the junction box is made uniform.

[0010] A possible embodiment of the present invention is characterized in that it comprises at least one connecting hole located outside the first connecting chamber and the second connecting chamber for connecting the housing to the cover. Therefore, when the cover is connected to the housing, the volume of the slot is simultaneously prevented from being narrowed.

[0011] Another possible embodiment of the present invention is characterized in that it comprises at least one assembly connection extension for engaging it with the connection hole on the cover, thereby ensuring that the cover can be fixed on the housing.

[0012] Another possible embodiment of the invention is characterized in that it comprises at least one foot protrusion and at least one flap protrusion on the cover.Thus, the cover can be assembled into the housing from multiple parts.

[0013] Another possible embodiment of the present invention is characterized in that the flap projections are arranged two to one another on the cover. Thus, the cover can be assembled into the housing from multiple parts.

[0014] Another possible embodiment of the invention is characterized in that the assembly connection extension is located on each foot protrusion and flap protrusion.Thus, the cover can be assembled into the housing from multiple parts.

[0015] Another possible embodiment of the invention is characterized in that it comprises at least one injection protrusion on the cover. Thus, the manufacturability of the cover is improved.

[0016] Another possible embodiment of the invention is characterized in that it comprises at least one chamfered portion on the cover. Thus, an aesthetically pleasing appearance of the cover is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A representative perspective view of a junction box of the present invention is shown.

[0018] Figure 2 A representative disassembled view of the junction box of the present invention is shown.

[0019] Figure 3 A representative cable installation perspective view of the junction box of the present invention is shown.

[0020] Figure 4 A representative perspective view of a cover connected to a junction box of the present invention is shown.

[0021] Figure 5 A representative perspective view of a cover connected to a junction box of the present invention is shown. DETAILED DESCRIPTION

[0022] In this detailed description, the subject matter of the present invention is explained only by examples, which have no limiting effect for a better understanding of the subject matter.

[0023] Figure 1 and Figure 2A representative view of a junction box (1) of the present invention is shown. Thus, the junction box (1) is a device for providing a connection between two different conductor cables (30). The junction box allows the conductor cables (30) to be safely connected to each other in power transmission. To achieve this, the junction box (1) has at least one housing (10). The housing (10) is made of insulating material. In this way, unnecessary leakage from the junction box (1) to the outside is prevented. The junction box (1) has at least one first conductor entrance opening (11) and at least one secondary conductor entrance opening (12). On the junction box (1), there is at least one current bar (15) extending between the first conductor entrance opening (11) and the secondary conductor entrance opening (12). The current bar (15) is made of conductive material. In this way, power transmission can be performed between the first conductor entrance opening (11) and the cable placed in the secondary conductor entrance opening (12). On the housing (10), there is at least one first connection chamber (13) between the first conductor inlet opening (11) and the current bar (15), and at least one second connection chamber (14) between the secondary conductor inlet opening (12) and the current bar (15). The first connection chamber (13) and the second connection chamber (14) include at least one spring (16) for bringing the conductor cable (30) into contact with the current bar (15). The spring (16) provides the required clamping force to safely transmit current. The first connection chamber (13) and the second connection chamber (14) are essentially the parts where the conductor cable (30) is in contact with the current bar (15).

[0024] Figure 3 A representative cable installation perspective view of the junction box (1) of the present invention is shown. Accordingly, there is at least one cover (20) on the junction box (1). The cover (20) prevents the special core conductor cable (30) connected to the junction box (1) from opening to the external environment. In order to be able to do this, the cover (20) is associated with at least one connection hole (17) on the housing (10). The connection hole (17) allows the cover (20) to be assembled to the junction box (1). The connection holes (17) are preferably arranged in a plurality on the housing (10). In this way, it is ensured that the cover (20) is assembled on the housing (10) from many places. The connection holes (17) are located outside the first connection chamber (13) and the second connection chamber (14). In this way, by preventing the first connection chamber (13) and the second connection chamber (14) from narrowing during the installation of the conductor cable (30), the installation of the conductor cable (31) is prevented from being hindered. In addition, insulating material is preferably used as the cover (20) material. In a possible embodiment of the present invention, the cover (20) is preferably made of engineering plastic, in particular polyamide material. Therefore, the cover (20) can be easily manufactured.

[0025] Figure 4 and Figure 5A representative perspective view of a cover (20) connected to a junction box (1) of the present invention is shown. Thus, the cover (20) is provided in the form of at least one first cover (20a) and at least one second cover (20b) to cover the first connection chamber (13) and the second connection chamber (14) of the junction box (1). The first cover (20a) and the second cover (20b) are formed in the same manner. In this way, the junction box (1) can be assembled with a single type of cover (20), and it has advantages in production and logistics because fewer parts are included in the product. To this end, there is at least one foot protrusion (21) and at least one flap protrusion (22) on the cover (20). In a preferred embodiment of the present invention, the two units are arranged on the cover (20) of the flap protrusion (22). There is a foot protrusion (21) on the cover (20) and at least one assembly connection extension (23) on the flap protrusion (22). The assembly connection extension (23) allows the cover (20) to be fixed to the housing (10) by passing it through the connection hole (17). To this end, a curved form can be found on the assembly connection extension (23). The cover (20) can also have at least one injection protrusion (24). The injection protrusion (24) allows the cover (20) to be formed by plastic injection while collecting manufacturing errors on the injection protrusion (24). In addition, a chamfered portion (25) can be found on the cover. The chamfered portion (25) can be located in a predetermined area of ​​the cover (20), which helps to facilitate manufacturing and use.

[0026] Although in the preferred embodiment of the present invention, there are two cover (20) structures on the junction box (1), namely the first cover (20a) and the second cover (20b), a larger number of covers (20) can be used in other possible embodiments of the present invention. A significant feature of the present invention is that even if there are multiple covers, the structure of the cover (20) is uniformly manufactured. It is ensured that the structure of the cover (20) on the junction box (1) is uniform, and the convenience of assembly, supply and use is achieved through the entire embodiment. In addition, it is ensured that the connection slot is limited by the outer cover (20) on the junction box (1). It allows the design of the current bar (15), which is less wasteful than the method of providing the same function by bending the current bar.

[0027] The protection scope of the present invention is defined in the attached claims and cannot be strictly limited to those explained for illustrative purposes in this detailed description. Obviously, those skilled in the art can show similar embodiments according to the above content without departing from the subject matter of the present invention.

[0028] The reference number 1 junction box given in the figure

[0029] 10 Shell

[0030] 11 First conductor entrance opening 12 Secondary conductor entry openings 13First Connection Room

[0031] 14 Second Connection Room

[0032] 15 Current rod

[0033] 16 Spring

[0034] 17 connection holes

[0035] 20 lids

[0036] 20a First cover

[0037] 20b Second cover

[0038] 21 Foot protrusion

[0039] 22 flap protrusion

[0040] 23 Assemble the connection extension 24 Injection protrusions

[0041] 25 chamfered part 30 conductor cable

Claims

1. A junction box (1), comprising: at least one housing (10) for interconnecting at least one conductor cable (30) for transmitting electrical power, at least one first conductor entry opening (11) for placing one of the conductor cables (30) on the housing (10), at least one secondary conductor entry opening (12) for receiving another one of said conductor cables (30), at least one current bar (15) having an electrically conductive feature extending between the first conductor inlet opening (11) and the secondary conductor inlet opening (12), at least one first connecting chamber (13) arranged between the current bar (15) and the first conductor inlet opening (11), at least one second connecting chamber (14) arranged between the current bar (15) and the secondary conductor inlet opening (12), at least one spring (16), in the first connection chamber (13) and in the second connection chamber (14), allowing the conductor cable (30) to come into contact with the current bar (15), At least one cover (20) connected to at least one of the first connecting chamber (13) and the second connecting chamber (14) to serve as a cover over at least one of the first connecting chamber (13) and the second connecting chamber (14), characterized in that: The cover (20) covering the first connecting chamber (13) and the second connecting chamber (14) is provided in the form of at least one first cover (20a) and at least one second cover (20b) formed identically to each other.

2. The junction box (1) according to claim 1, characterized in that: The junction box (1) includes at least one connection hole (17) on the outside of the first connection chamber (13) and the second connection chamber (14) for connecting the housing (10) to the cover (20).

3. The junction box (1) according to claim 2, characterized in that: The junction box (1) comprises at least one assembly connection extension (23) for engaging with the connection hole (17) on the cover (20).

4. The junction box (1) according to claim 1, characterized in that: The junction box (1) comprises at least one foot protrusion (21) and at least one flap protrusion (22) on the cover (20).

5. The junction box (1) according to claim 4, characterized in that: Two flap protrusions (22) are arranged on the cover (20) opposite to each other.

6. The junction box (1) according to claim 3 or 4, characterized in that: The assembly connection extension (23) is located on each of the foot protrusion (21) and the flap protrusion (22).

7. The junction box (1) according to claim 1, characterized in that: The junction box (1) comprises at least one injection protrusion (24) on the cover (20).

8. The junction box (1) according to claim 1, characterized in that: The junction box (1) includes at least one chamfered portion (25) on the cover (20).

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