Shield protector

Abstract

The present invention relates to a shield protector. The shield protector comprises: an upper case formed in a shape capable of accommodating a busbar; and a lower case coupled to the upper case and formed in a shape capable of accommodating the busbar, wherein the upper case and the lower case comprise metal for shielding an electromagnetic field as a main constituent. Through this, the busbar can be effectively shielded. In addition, the shield protector according to the present invention can be manufactured more simply, and the process of coupling the shield protector to the busbar can also be more simply and conveniently performed.

Description

Shielding protector

[0001] The present invention relates to a shielding protector, and more specifically, to a shielding protector that wraps around a busbar to protect the busbar from electromagnetic waves and external shocks.

[0002] Nowadays, vehicles are equipped with numerous convenience features, resulting in the installation of a vast number of electronic devices and components. Furthermore, with the recent deepening interest in environmental conservation, the adoption of hybrid and electric vehicles is on the rise globally. These eco-friendly vehicles are equipped with more electronic devices and components compared to internal combustion engine vehicles, and high-capacity batteries are also utilized.

[0003] For reasons such as durability and stability, some of these components need to be connected not by ordinary wires, but by shielded wires capable of blocking electromagnetic waves originating from the outside or shielding electromagnetic waves generated by the wires. A shielded wire consists of a standard wire covered with a braided wire made of metal that shields electromagnetic waves, which can block the penetration of electromagnetic waves into the wire. However, since the braided wire is in the form of a metal mesh, it spreads wider at severely curved sections, such as bends, creating gaps through which electromagnetic waves can penetrate. In other words, problems with shielding performance may occur when using braided wires.

[0004] Furthermore, recent electric vehicles utilize busbars instead of conventional wires due to the use of high-capacity batteries and fast-charging capabilities; however, as large amounts of current flow through these busbars, a greater amount of electromagnetic waves are emitted. In other words, for busbars, it is difficult to sufficiently shield against electromagnetic waves using conventional braided wires.

[0005] Also, applying braided wire to the wire is carried out through numerous processes, which requires excessive costs and results in low productivity.

[0006] Therefore, there is a need for a product with excellent shielding performance capable of shielding electromagnetic waves generated from busbars transmitting large amounts of current, while also increasing productivity and reducing production and assembly costs.

[0007]

[0008] The present invention has been devised to solve the above-mentioned problems and aims to provide a shielding protector that has excellent shielding performance, can increase productivity, and reduce costs.

[0009] To solve the above-mentioned problem, the shielding protector according to the present invention comprises an upper case formed in a half-tube shape with both ends open, and a lower case formed in a half-tube shape with both ends open, which is coupled to the upper case and accommodates a bus bar, wherein the upper case and the lower case are characterized by having a metal that shields an electromagnetic field as a main component.

[0010] In addition, the upper case includes an upper side and the lower case includes a lower side, and the upper side covers at least a portion of the lower side so that the upper case and the lower case can be combined.

[0011] Additionally, the upper case may include a first coupling projection formed by protruding from the inner side of the upper side, and the lower case may include a first coupling groove formed by being recessed on the outer side of the lower side and engaging with the first coupling projection.

[0012] Additionally, the upper case may include a second coupling groove formed by being recessed into the inner side of the upper side, and the lower case may include a second coupling projection formed by protruding outward from the outer side of the lower side and engaging with the second coupling groove.

[0013] In addition, the first coupling projection may be formed by the end of the upper side being rolled toward the inside of the upper case, and the first coupling groove may be formed by the end of the lower side being bent.

[0014] In addition, the second coupling groove may be formed by penetrating the upper side.

[0015] Additionally, the upper case may include a position correction groove formed by cutting the upper side, and the lower case may include a position correction projection formed by protruding from the lower side and received in the position correction groove.

[0016] Additionally, it may further include a busbar fixing member that is coupled to the busbar, including a busbar fixing shaft inserted into a fixing hole formed in the busbar, and at least a portion thereof is accommodated inside the upper case and the lower case.

[0017] Additionally, the busbar comprises a first busbar and a second busbar, and the busbar fixing part may further include a first busbar fixing part coupled to the first busbar by having the busbar fixing shaft protruding, and a second busbar fixing part coupled to the second busbar by having the busbar fixing shaft protruding.

[0018] In addition, the busbar fixing part may further include an intermediate busbar fixing part that is simultaneously coupled with the first busbar and the second busbar, wherein a plurality of the busbar fixing shafts are formed protrudingly.

[0019] In addition, a part of the first busbar and a part of the second busbar can be wrapped and fixed through the first busbar fixing part, the second busbar fixing part and the intermediate busbar fixing part.

[0020] In addition, it may further include a grounding tie that wraps around the outer surface of the upper case and the lower case, is composed of a conductive material, and is connected to the vehicle body.

[0021] In addition, the grounding tie may include a grounding fixing hole to which a grounding fastening member is fastened and which is coupled to the vehicle body.

[0022] Additionally, the upper case may further include an upper grounding tie receiving groove formed by being recessed from the outer surface of the upper case so that the grounding tie is engaged and coupled, and the lower case may further include a lower grounding tie receiving groove formed by being recessed from the outer surface of the lower case so that the grounding tie is engaged and coupled.

[0023]

[0024] According to the means for solving the problem of the present invention as described above, various effects including the following can be expected. However, the present invention is not required to exhibit all of the following effects to be valid.

[0025] First, electromagnetic shielding performance can be improved.

[0026] In addition, the process of attaching shielding protectors to the busbar is simplified. In other words, productivity is increased.

[0027] In addition, the production process of the shielding protector is simplified. In other words, productivity is increased.

[0028] In addition, the busbar can be fixed, allowing it to withstand vibration and shock.

[0029] FIG. 1 is a perspective view illustrating a shielding protector according to a first embodiment of the present invention,

[0030] FIG. 2 is an exploded view of the shielding protector of FIG. 1.

[0031] FIG. 3 is a cross-sectional view along the cutting line III-III of FIG. 1,

[0032] Fig. 4 is a partial enlarged view of area IV of Fig. 1.

[0033] FIG. 5 is a perspective view illustrating a shielding protector according to a second embodiment of the present invention.

[0034] FIG. 6 is an exploded view of the shielding protector of FIG. 5.

[0035] FIG. 7 is a cross-sectional view along the cutting line Ⅶ-Ⅶ of FIG. 5.

[0036] Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

[0037] FIG. 1 is a perspective view illustrating a shielding protector according to a first embodiment of the present invention, FIG. 2 is an exploded perspective view of the shielding protector of FIG. 1, FIG. 3 is a cross-sectional view along the cutting line III-III of FIG. 1, and FIG. 4 is a partial enlarged view of area IV of FIG. 1.

[0038] As illustrated in these drawings, the shielding protector according to the first embodiment of the present invention comprises an upper case (1000), a lower case (2000), a busbar fixing part (3000), and a grounding tie (4000). Compared to a conventional braided wire insertion wire, the shielding protector can accommodate a busbar (10), the shielding performance is improved, and the production of the shielding protector and the process of attaching it to the busbar (10) are simplified, thereby improving productivity.

[0039] The upper case (1000) is formed in a half-tube shape with both ends open and is combined with the lower case (2000) to accommodate a bus bar (10) inside. The upper case (1000) is composed mainly of a metal that shields electromagnetic fields. In particular, it is preferable to use aluminum (Al) or copper (Cu) as the main components.

[0040] More specifically, the upper case (1000) includes an upper side (1010), and the upper side (1010) covers at least a portion of the lower side (2010) of the lower case (2000), so that the upper case (1000) and the lower case (2000) are joined.

[0041] The upper case (1000) includes a first coupling projection (1100) formed protruding from the inner side of the upper side (1010), and a position correction groove (1200) formed by cutting the upper side (2010). Additionally, the upper case (1000) may further include an upper grounding tie receiving groove (1400).

[0042] The first coupling projection (1100) is formed to protrude from the inner side of the upper side (1010) and engages with the first coupling groove (2100) of the lower case (2000), thereby allowing the upper case (1000) and the lower case (2000) to be coupled to each other. More specifically, the upper side (1010) is coupled in a manner that covers the lower side (2010), so that the first coupling projection (1100) engages with the first coupling groove (2100).

[0043] In particular, it is preferable that the first connecting projection (1100) be formed such that the end of the upper side (1010) is curled toward the inside of the upper case (1000). This can be formed using the so-called curling method among press injection methods.

[0044] The position correction groove (1200) is formed by cutting the upper side (1010) and engaging with the position correction projection (2200) of the lower case (2000). This ensures that the upper case (1000) and the lower case (2000) are properly engaged with each other. More preferably, the first coupling projection (1100) and the position correction groove (1200) are formed alternately on the upper side (1010).

[0045] In addition, it is preferable that the position correction groove (1200) is also injection molded using a press. That is, the upper case (1000) is produced by injection molding a metal plate made of a metal capable of shielding an electromagnetic field using a press, and since it is done by an injection molding method, there is an advantage that the upper case (1000) can be produced more quickly.

[0046] The upper grounding tie receiving groove (1400) is formed by being recessed from the outer surface of the upper case (1000) so that the grounding tie (4000) is engaged and coupled. That is, since the grounding tie (4000) is engaged and coupled with the upper grounding tie receiving groove (1400), it can be fixed without moving along the longitudinal direction of the upper case (1000), and can be grounded by being connected to the vehicle body while firmly securing the upper case (1000) and the lower case (2000).

[0047] The lower case (2000) is combined with the upper case (1000) to accommodate the bus bar (10) and is formed in a half-tube shape with both ends open. The lower case (2000) is composed mainly of a metal that shields electromagnetic fields. In particular, it is preferable to have aluminum (Al) or copper (Cu) as the main components.

[0048] The lower case (2000) includes a lower side (2010), and the upper side (1010) covers at least a portion of the lower side (2010), so that the upper case (1000) and the lower case (2000) are combined.

[0049] The lower case (2000) includes a first defect groove (2100) and a position correction projection (2200). Additionally, the lower case (2000) may further include a lower grounding tie receiving groove (2400).

[0050] The first coupling groove (2100) is formed by being recessed on the outer side of the lower side (2010) and engages with the first coupling projection (1100). That is, the first coupling groove (2100) engages with the first coupling projection (1100) of the upper case (1000), thereby allowing the upper case (1000) and the lower case (2000) to be coupled to each other. More specifically, the upper case (1000) and the lower case (2000) come into contact in such a way that the upper side (1010) covers the lower side (2010), and at the same time, the first coupling projection (1100) engages with the first coupling groove (2100), thereby coupling to each other.

[0051] Also, it is preferable that the first coupling groove (2100) be formed by bending the end of the lower side (2010). This can be formed by the so-called bending method among press injection methods.

[0052] The position correction projection (2200) is formed to protrude from the outer surface of the lower case (2000) at a portion corresponding to the position correction groove (1200) and is received in the position correction groove (1200). Through this, the upper case (1000) and the lower case (2000) are properly interlocked with each other.

[0053] In addition, it is preferable that the position correction projection (1200) is also injection molded using a press. That is, a metal plate made of a metal capable of shielding an electromagnetic field is injection molded using a press to produce the lower case (2000), and since this is done by an injection molding method, there is an advantage that the lower case (2000) can be produced more quickly.

[0054] Additionally, the first coupling projection (1100) and the position correction groove (1100) are preferably arranged in a constant pattern along the longitudinal direction of the upper case (1000), and particularly formed alternately. Likewise, the first coupling groove (2100) and the position correction projection (2200) are also preferably arranged in a constant pattern along the longitudinal direction of the lower case (2000), and particularly formed alternately.

[0055] The lower grounding tie receiving groove (2400) is formed by being recessed from the outer surface of the lower case (2000) so that the grounding tie (4000) is engaged and coupled thereto. That is, since the grounding tie (4000) is engaged and coupled with the lower grounding tie receiving groove (2400), it can be fixed without moving along the longitudinal direction of the lower case (2000), and can be connected to the vehicle body to provide grounding while firmly securing the upper case (1000) and the lower case (2000).

[0056] The busbar fixing part (3000) includes a busbar fixing shaft (3100) inserted into a fixing hole (11) formed in the busbar (10), is coupled to the busbar (10), and at least a portion is accommodated inside the upper case (1000) and lower case (2000). In particular, it is preferable that a plurality of busbar fixing parts (3000) are attached to both ends of the busbar (10), and that the busbar fixing part (3000) is coupled to the upper case (1000) and lower case (2000) to fix the busbar (10). Through this, the busbar (10) can be fixed without moving inside the upper case (1000) and lower case (2000) even if it is exposed to external vibration or shock.

[0057] Additionally, it is preferable that the busbar fixing part (3000) be coupled to the upper case (1000) and the lower case (2000). That is, the busbar fixing part (3000) is fixed by being in close contact with the upper side (1010) or the lower side (2010). Through this, the fixing function can be performed without forming separate protrusions and grooves for fixing.

[0058] More preferably, the busbar fixing part (3000) is surrounded by the upper case (1000) and the lower case (2000), and is fitted and fixed to the upper case (1000) and the lower case (2000).

[0059] Additionally, the busbar fixing part (3000) preferably includes a first busbar fixing part (3000a) in which a busbar fixing shaft (3100) is formed protrudingly and coupled to a first busbar (10a), a second busbar fixing part (3000b) in which a busbar fixing shaft (3100) is formed protrudingly and coupled to a second busbar (10b), and an intermediate busbar fixing part (3000c) in which a plurality of busbar fixing shafts (3100) are formed protrudingly and coupled to the first busbar (10a) and the second busbar (10b) simultaneously.

[0060] The busbar fixing shaft (3100) of the first busbar fixing part (3000a) and the busbar fixing shaft (3100) of the intermediate busbar fixing part (3000c) are inserted into the fixing hole (11) formed in the first busbar (10a), and the busbar fixing shaft (3100) of the second busbar fixing part (3000b) and the busbar fixing shaft (3100) of the intermediate busbar fixing part (3000c) are inserted into the fixing hole (11) formed in the second busbar (10b), so that the first busbar (10a) and the second busbar (10b) can be fixed simultaneously.

[0061] More specifically, a portion of the first busbar (10a) and a portion of the second busbar (10b) are wrapped and fixed through the first busbar fixing part (3000a), the second busbar fixing part (3000b), and the intermediate busbar fixing part (3000c). In this state, the first busbar fixing part (3000a), the second busbar fixing part (3000b), and the intermediate busbar fixing part (3000c) are coupled and fixed to the upper case (1000) and the lower case (2000), so that the busbar (10) can be firmly fixed even if it is exposed to external vibrations and shocks.

[0062] The grounding tie (4000) wraps around the outer surface of the upper case (1000) and the lower case (2000), is made of a conductive material, and is connected to the vehicle body to provide grounding. That is, after the upper case (1000) and the lower case (2000) are combined, the tie wraps around them to provide a more secure connection, and additionally connects them to the vehicle body to provide grounding.

[0063] More specifically, the grounding tie (4000) includes a grounding fixing hole (4100). The grounding fixing hole (4100) is a part to which a grounding fastening member is fastened and joined to the vehicle body. The grounding fixing hole (4100) is in close contact with and fixed to the vehicle body by the grounding fastening member, thereby allowing the shielding protector or busbar (10) to be connected to the vehicle body by the grounding tie (4000).

[0064] The grounding fastening member is inserted into the grounding fixing hole (4100) and secures the grounding fixing hole (4100) by pressing it against the vehicle body, and includes screws, nails, etc.

[0065] The busbar (10) is a channel through which current flows, and is protected by being wrapped in a shielding protector. As described above, a fixing hole (11) is formed in the busbar (10) for connecting the busbar fixing part (3000). Multiple busbars (10) may be accommodated within the shielding protector, and for convenience, they are respectively referred to as the first busbar (10a) and the second busbar (10b).

[0066] The first embodiment of the present invention can be expected to have various effects including the following according to the above configuration. However, the present invention is not required to exhibit all of the following effects to be valid.

[0067] First, electromagnetic shielding performance can be improved.

[0068] In addition, the process of attaching a shielding protector to the busbar (10) is simplified. That is, productivity is increased.

[0069] In addition, the production process of the shielding protector is simplified. In other words, productivity is increased.

[0070] In addition, the busbar (10) can be fixed so that it can withstand vibration and shock.

[0071]

[0072] FIG. 5 is a perspective view illustrating a shielding protector according to a second embodiment of the present invention, FIG. 6 is an exploded perspective view of the shielding protector of FIG. 5, and FIG. 7 is a cross-sectional view along the cutting line Ⅶ-Ⅶ of FIG. 5.

[0073] Hereinafter, the shielding protector according to the second embodiment of the present invention will be described with a focus on the differences from the shielding protector according to the first embodiment of the present invention.

[0074] In the shielding protector according to the second embodiment of the present invention, a second coupling groove (1300) is formed on the upper side (1010) and a second coupling projection (2300) is formed on the lower side (2010), so that the second coupling groove (1300) and the second coupling projection (2300) are interlocked and coupled with each other, thereby coupling the upper case (1000) and the lower case (2000).

[0075] The second coupling groove (1300) is formed by being recessed into the inner side of the upper side (1010), and the second coupling projection (2300) is formed by being protruded outward from the lower side (2010), so that the second coupling groove (1300) and the second coupling projection (2300) are joined by interlocking with each other.

[0076] More specifically, the second coupling groove (1300) can be formed by penetrating the upper side (1010). Preferably, the second coupling groove (1300) is formed by so-called piercing or punching among press injection methods. According to this method, the second coupling groove (1300) can be formed by a simpler process.

[0077] The second coupling projection (2300) is formed by protruding outward from the lower side (2010) and engages with the second coupling groove (1300). It is preferable that the second coupling projection (2300) be formed by embossing during a press injection method. According to this method, the second coupling projection (2300) can be formed by a simpler process.

[0078] Additionally, the second coupling groove (1300) and the position correction groove (1100) are arranged in a constant pattern along the longitudinal direction of the upper case (1000), and it is particularly desirable that they be formed alternately. Likewise, the second coupling projection (2300) and the position correction projection (2200) are also arranged in a constant pattern along the longitudinal direction of the lower case (2000), and it is particularly desirable that they be formed alternately.

[0079] The shielding protector according to the second embodiment of the present invention has the advantage that the upper case (1000) and the lower case (2000) can be produced by a simpler process. In addition, the bus bar (10) and the bus bar fixing part (3000) can be more closely attached by the upper case (1000) and the lower case (2000).

[0080] Although preferred embodiments of the present invention have been described above with reference to the attached drawings, the embodiments described in this specification and the configurations illustrated in the drawings are merely the most preferred embodiments of the present invention and do not represent all technical concepts of the present invention. Therefore, various equivalents and modifications that can replace them at the time of filing this application fall within the scope of protection of the present invention.

Claims

1. An upper case (1000) formed in a half-tube shape with both ends open; and A lower case (2000) that is combined with the upper case (1000) to accommodate a bus bar (10) and is formed in a half-tube shape with both ends open; Includes, A shielding protector characterized in that the upper case (1000) and the lower case (2000) are made of a metal that shields an electromagnetic field.

2. In Paragraph 1, The upper case (1000) includes an upper side (1010), and The lower case (2000) includes a lower side (2010), and A shielding protector characterized in that the upper side (1010) covers at least a portion of the lower side (2010), so that the upper case (1000) and the lower case (2000) are combined.

3. In Paragraph 2, The upper case (1000) above is, A first coupling projection (1100) formed protruding from the inner side of the upper side (1010); Includes, The lower case (2000) above is, A first coupling groove (2100) formed by being recessed on the outer side of the lower side (2010) and engaging with the first coupling projection (1100); A shielding protector characterized by including 4. In Paragraph 2, The upper case (1000) above is, A second coupling groove (1300) formed by being recessed into the inner side of the upper side (1010); Includes, The lower case (2000) above is, A second coupling projection (2300) formed protruding from the outer side of the lower side (2010) and engaging with the second coupling groove (1300); A shielding protector characterized by including 5. In Paragraph 3, The first coupling projection (1100) is formed such that the end of the upper side (1010) is rolled toward the inside of the upper case (1000). A shielding protector characterized in that the first coupling groove (2100) is formed by bending the end of the lower side (2010).

6. In Paragraph 4, A shielding protector characterized in that the second coupling groove (1300) is formed by penetrating the upper side (1010).

7. In Paragraph 2, The upper case (1000) above is, A position correction groove (1200) formed by cutting the upper side (2010) above; Includes, The lower case (2000) above is, A position correction projection (2200) formed protruding from the lower side (2010) and received in the position correction groove (1200); A shielding protector characterized by including 8. In Paragraph 1, A busbar fixing part (3000) that is coupled to the busbar (10) and includes a busbar fixing shaft (3100) inserted into a fixing hole (11) formed in the busbar (10), and at least a portion thereof is accommodated inside the upper case (1000) and the lower case (2000); A shielding protector characterized by further including 9. In Paragraph 8, The above busbar (10) includes a first busbar (10a) and a second busbar (10b), and The above busbar fixing part (3000) is, The above busbar fixing shaft (3100) is formed protrudingly, and the first busbar fixing part (3000a) is coupled with the first busbar (10a); and The above busbar fixing shaft (3100) is formed protrudingly, and the second busbar fixing part (3000b) is coupled with the second busbar (10b); A shielding protector characterized by further including 10. In Paragraph 9, The above busbar fixing part (3000) is, A plurality of the above-mentioned busbar fixing shafts (3100) are formed protrudingly, and an intermediate busbar fixing part (3000c) is simultaneously coupled with the first busbar (10a) and the second busbar (10b); A shielding protector characterized by further including 11. In Paragraph 10, A shielding protector characterized by wrapping and fixing a portion of the first busbar (10a) and a portion of the second busbar (10b) through the first busbar fixing part (3000a), the second busbar fixing part (3000b), and the intermediate busbar fixing part (3000c).

12. In Paragraph 1, A grounding tie (4000) that wraps around the outer surface of the upper case (1000) and the lower case (2000), is made of a conductive material, and is connected to the vehicle body; A shielding protector characterized by further including 13. In Paragraph 12, The above grounding tie (4000) is, A grounding fixing hole (4100) that is connected to the vehicle body by fastening a grounding fastening member; A shielding protector characterized by including 14. In Paragraph 12, The upper case (1000) above is, An upper grounding tie receiving groove (1400) formed by being recessed from the outer surface of the upper case (1000) so that the grounding tie (4000) is joined together; Includes more, The lower case (2000) above is, A lower grounding tie receiving groove (2400) formed by being recessed from the outer surface of the lower case (2000) so that the grounding tie (4000) is engaged and joined; A shielding protector characterized by further including

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