On-board charger chassis and on-board charger

Abstract

This application discloses a chassis for an on-board charger and the on-board charger itself. The chassis includes a first outer shell and a second outer shell, which together form a receiving space. The first outer shell has a top wall and an annular rim, which extends from the outer edge of the top wall toward the second outer shell to enclose at least a portion of the side wall of the second outer shell. At least one fastener is provided in a first area of ​​the side wall of the second outer shell enclosed by the annular rim. According to the embodiment of this application, the chassis of the on-board charger can provide better shielding against electromagnetic radiation, improving the electromagnetic compatibility of the chassis.

Description

Technical Field

[0001] This application relates to the field of electrical enclosures, and in particular to an enclosure for an on-board charger and an on-board charger. Background Technology

[0002] The chassis of an on-board charger includes a first outer shell and a second outer shell that can be spliced ​​together. In related technologies, the first and second outer shells are spliced ​​together with adhesive, resulting in good sealing performance of the assembled chassis. The first and second outer shells are usually made of conductive materials, while the adhesive is an insulating material. Therefore, the assembled chassis has an insulating layer between the first and second outer shells. Electromagnetic radiation can easily pass through this insulating layer, leading to poor electromagnetic compatibility of the chassis. Utility Model Content

[0003] This application provides a chassis for an on-board charger and the on-board charger itself, which improves the electromagnetic compatibility of the chassis.

[0004] In a first aspect, embodiments of this application provide a chassis for an on-board charger, which includes a first outer shell and a second outer shell, the second outer shell and the first outer shell forming an accommodating space, the first outer shell having a top wall and an annular rim, the annular rim extending from the outer edge of the top wall toward the second outer shell to wrap around at least a portion of the side wall of the second outer shell; at least one fastener is provided in a first area of ​​the side wall of the second outer shell wrapped by the annular rim.

[0005] According to the foregoing embodiments of the first aspect of this application, the fastener includes at least one first fastener disposed on the annular rim.

[0006] According to any of the foregoing embodiments of the first aspect of this application, the first fastener is a snap fastener recessed from the annular rim toward the sidewall.

[0007] According to any of the foregoing embodiments of the first aspect of this application, the first fastener includes a guide portion that extends in an arc shape and has a concave surface facing the sidewall.

[0008] According to any of the foregoing embodiments of the first aspect of this application, the first fastener further includes a snap-fit ​​portion connected to the guide portion, the snap-fit ​​portion extending in an arc shape and having a convex surface facing the sidewall.

[0009] According to any of the foregoing embodiments of the first aspect of this application, the fastener includes at least one second fastener disposed on the sidewall of the second housing.

[0010] According to any of the foregoing embodiments of the first aspect of this application, the second fastener is a protrusion extending from the sidewall toward the annular rim.

[0011] According to any of the foregoing embodiments of the first aspect of this application, the end of the second fastener facing the top wall is provided with a chamfered structure or a rounded corner structure.

[0012] According to any of the foregoing embodiments of the first aspect of this application, the fastener includes at least one first fastener disposed on the annular rim and at least one second fastener disposed on the side wall of the second housing, wherein the second fastener is engaged with the first fastener.

[0013] Secondly, embodiments of this application provide an on-board charger, which includes a chassis of an on-board charger according to any of the foregoing embodiments of the first aspect of this application and an on-board charging device, wherein the on-board charging device is disposed within the accommodating space.

[0014] According to an embodiment of this application, the chassis of an on-board charger includes a second outer shell and a first outer shell that enclose a receiving space. The first outer shell has a top wall and an annular rim, the annular rim extending from the outer edge of the top wall toward the second outer shell to cover at least a portion of the side wall of the second outer shell. At least one fastener is provided on a first area of ​​the side wall of the second outer shell covered by the annular rim. The first and second outer shells are in contact with each other via the fasteners. Both the first and second outer shells are conductive components. After the first and second outer shells are joined, the fasteners ensure contact between them, improving the conductive continuity between the first and second outer shells. This allows the chassis to provide better shielding against electromagnetic radiation and improves the electromagnetic compatibility of the chassis. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a perspective view of an embodiment of the chassis of the on-board charger of this application;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a perspective view of another embodiment of the chassis of the on-board charger of this application;

[0019] Figure 4 This is a perspective view of the second outer casing in another embodiment of the on-board charger chassis of this application;

[0020] Figure 5 for Figure 4 Enlarged diagram of point B in the middle.

[0021] Explanation of reference numerals in the attached figures:

[0022] 100-Chassis;

[0023] 110 - First outer shell; 111 - Top wall; 112 - Annular edging;

[0024] 120 - Second outer shell; 122 - Side wall;

[0025] 130-Fastener; 130a-First fastener; 131-Guide part; 132-Snap-fit ​​part; 130b-Second fastener; 133-Chamfered structure;

[0026] 140 - Threaded connector. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0028] It should be noted that all directional indications in the embodiments of this application, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0029] Furthermore, the use of terms such as "first" and "second" in this application is 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, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0030] This application provides a chassis for an on-board charger. Figure 1 This is a perspective view of one embodiment of the chassis of the on-board charger of this application. Figure 2 for Figure 1Enlarged view at point A. The on-board charger chassis 100 includes a first housing 110 and a second housing 120. In some embodiments, the second housing 120 and the first housing 110 can be joined together by adhesive. In this embodiment, both the first housing 110 and the second housing 120 are conductive components, for example, both are metal components. In one example, the second housing 120 and the first housing 110 are bonded together by a FIPG (Formed-In-Place Gasket) process.

[0031] The second outer shell 120 and the first outer shell 110 enclose a receiving space. The first outer shell 110 has a top wall 111 and an annular rim 112. The annular rim 112 extends from the outer edge of the top wall 111 toward the second outer shell 120 to cover at least a portion of the side wall 122 of the second outer shell 120. In some embodiments, the second outer shell 120 includes a bottom wall and a side wall 122, the bottom wall being opposite to the top wall 111 of the first outer shell 110, and the side wall 122 extending from the outer edge of the bottom wall toward the first outer shell 110. In this embodiment, the first outer shell 110 can cover the second outer shell 120.

[0032] In this embodiment, at least one fastener 130 is provided in a first region of the sidewall 122 of the second housing 120, which is enclosed by an annular edging 112. In this embodiment, the first region is the area enclosed by the annular edging 112 around the sidewall 122, including at least a portion of the annular edging 112 and at least a portion of the sidewall 122. In some embodiments, the fastener 130 may be disposed on the annular edging 112; in some embodiments, the fastener 130 may be disposed on the sidewall 122; and in some embodiments, the fastener 130 may be disposed on both the annular edging 112 and the sidewall 122. The fastener 130 can simultaneously contact both the first housing 110 and the second housing 120.

[0033] According to an embodiment of this application, the chassis 100 of the on-board charger has a second outer shell 120 and a first outer shell 110 enclosing a receiving space. The first outer shell 110 has a top wall 111 and an annular rim 112. The annular rim 112 extends from the outer edge of the top wall 111 toward the second outer shell 120 to wrap around at least a portion of the side wall 122 of the second outer shell 120. At least one fastener 130 is provided in a first area of ​​the side wall 122 of the second outer shell 120 wrapped by the annular rim 112. The first outer shell 110 and the second outer shell 120 are in contact with each other through the fastener 130. Both the first outer shell 110 and the second outer shell 120 are conductive. After the first outer shell 110 and the second outer shell 120 are joined, the first outer shell 110 and the second outer shell 120 are in contact with each other through the fastener 130, which improves the conductive continuity between the first outer shell 110 and the second outer shell 120, enabling the chassis 100 to provide better shielding against electromagnetic radiation and improving the electromagnetic compatibility (EMC) effect of the chassis 100.

[0034] like Figure 1 In some embodiments, the first housing 110 is provided with a first connection hole, and the second housing 120 is provided with a second connection hole corresponding to the position of the first connection hole. The chassis 100 also includes a threaded connector 140, which passes through the first connection hole and the corresponding second connection hole to connect the first housing 110 and the second housing 120. In one example, the first connection hole is located at the edge of the top wall 111 of the first housing 110.

[0035] The threaded connector 140 can also be a conductive component. Therefore, the threaded connector 140 can also improve the conductive continuity between the first housing 110 and the second housing 120. The threaded connector 140 and the fastener 130 together improve the electromagnetic compatibility effect of the chassis 100. In this embodiment, due to the presence of the fastener 130, the required number of threaded connectors 140 can be reduced while achieving the same electromagnetic compatibility effect, thereby facilitating the improvement of the assembly efficiency of the chassis 100.

[0036] like Figure 2 In some embodiments, the fastener 130 includes at least one first fastener 130a disposed on the annular edging 112. The first fastener 130a is capable of contacting the second housing 120.

[0037] The number of first fasteners 130a can be single or multiple. Preferably, the number of first fasteners 130a is multiple, and they are arranged at intervals along the annular edging 112.

[0038] In some embodiments, the first fastener 130a is a snap fastener recessed from the annular rim 112 toward the sidewall 122, thereby causing the annular rim 112 to snap into contact with the second housing 120.

[0039] In some embodiments, the first fastener 130a is an elastic element.

[0040] like Figure 2 In some embodiments, the first fastener 130a includes a guide portion 131, which extends in an arc shape and has a concave surface facing the sidewall 122. When the first housing 110 and the second housing 120 are joined together, the guide portion 131 can guide the contact between the first fastener 130a and the sidewall 122 of the second housing 120, facilitating a tight contact between the first fastener 130a and the second housing 120.

[0041] like Figure 2 In some embodiments, the first fastener 130a further includes a snap-fit ​​portion 132, which is connected to the guide portion 131. The snap-fit ​​portion 132 extends in an arc shape and its convex surface faces the sidewall 122.

[0042] In the above embodiment, the first fastener 130a further includes a snap-fit ​​portion 132. When the first housing 110 and the second housing 120 are spliced ​​together, the guide portion 131 first contacts the side wall 122 of the second housing 120 and generates a guiding effect. As the first housing 110 and the second housing 120 gradually approach each other, the guide portion 131 gradually guides the snap-fit ​​portion 132 to contact the side wall 122 of the second housing 120. The snap-fit ​​portion 132 extends in an arc shape and the convex surface faces the side wall 122, that is, the snap-fit ​​portion 132 has an inward buckling shape, so that it can fit tightly with the second housing 120 and improve the stability of the connection between the first housing 110 and the second housing 120.

[0043] Figure 3 This is a perspective view of another embodiment of the chassis of the on-board charger of this application. The chassis 100 of the on-board charger includes a first outer shell 110 and a second outer shell 120. The second outer shell 120 and the first outer shell 110 enclose a receiving space. The first outer shell 110 has a top wall 111 and an annular rim 112. The annular rim 112 extends from the outer edge of the top wall 111 toward the second outer shell 120 to cover at least a portion of the side wall 122 of the second outer shell 120. The second outer shell 120 includes a bottom wall and a side wall 122, the side wall 122 extending from the outer edge of the bottom wall toward the first outer shell 110.

[0044] Figure 4 This is a perspective view of the second outer casing in another embodiment of the on-board charger chassis of this application. Figure 5 for Figure 4Enlarged view at point B. At least one fastener 130 is provided in the first region of the side wall 122 of the second housing 120, which is enclosed by the annular edging 112. The fastener 130 can contact both the first housing 110 and the second housing 120 simultaneously. (Example...) Figures 3 to 5 In some embodiments, the fastener 130 includes at least one second fastener 130b disposed on the sidewall 122 of the second housing 120.

[0045] The number of second fasteners 130b can be single or multiple. Preferably, there are multiple second fasteners 130b, which are spaced apart along the edge of the sidewall 122 of the second housing 120.

[0046] In some embodiments, the second fastener 130b is a protrusion that protrudes from the sidewall 122 toward the annular rim 112.

[0047] In the above embodiment, the second fastener 130b is a protrusion. On the one hand, the protrusion-shaped second fastener 130b is easy to interfere with the annular edge 112 in the spliced ​​state, thereby realizing the tight contact between the first shell 110 and the second shell 120. On the other hand, the protrusion-shaped second fastener 130b is easier to manufacture at the edge of the side wall 122, improving the convenience of the chassis 100 manufacturing process.

[0048] In some embodiments, the end of the second fastener 130b facing the top wall 111 is provided with a chamfered structure 133 or a rounded corner structure. In one example, the end of the second fastener 130b facing the top wall 111 is provided with a chamfered structure 133. By providing a chamfered structure 133 or a rounded corner structure on the second fastener 130b, when the first housing 110 and the second housing 120 are spliced ​​together, the chamfered structure 133 or the rounded corner structure can guide the contact between the second fastener 130b and the annular edging 112, which is beneficial to the tight contact between the second fastener 130b and the first housing 110.

[0049] In the above embodiment, the second fastener 130b is described as a protrusion. In other embodiments, the second fastener 130b is not limited to a protrusion structure, but can also be other structures that can make contact with the annular edge 112.

[0050] In some other embodiments, the fastener 130 includes at least one first fastener disposed on the annular rim 112 and at least one second fastener disposed on the side wall 122 of the second housing 120. The second fastener cooperates with the first fastener to connect the first housing 110 and the second housing 120, thereby improving the conductive continuity between the first housing 110 and the second housing 120.

[0051] This application also provides an on-board charger, which includes a chassis 100 and an on-board charging device as described in any of the foregoing embodiments. The chassis 100 of the on-board charger includes a first outer shell 110 and a second outer shell 120. In some embodiments, the second outer shell 120 and the first outer shell 110 can be joined together by adhesive. In this embodiment, both the first outer shell 110 and the second outer shell 120 are conductive components, for example, both are metal components.

[0052] The second housing 120 and the first housing 110 enclose a receiving space. The on-board charging device is disposed within the receiving space.

[0053] The first housing 110 has a top wall 111 and an annular rim 112. The annular rim 112 extends from the outer edge of the top wall 111 toward the second housing 120 to enclose at least a portion of the side wall 122 of the second housing 120. A first area of ​​the side wall 122 of the second housing 120 enclosed by the annular rim 112 is provided with at least one fastener 130.

[0054] According to an embodiment of this application, the on-board charger's chassis 100 includes a first outer shell 110 and a second outer shell 120, which together with the first outer shell 110 form a receiving space. The first outer shell 110 has a top wall 111 and an annular edging 112. The annular edging 112 extends from the outer edge of the top wall 111 toward the second outer shell 120 to enclose at least a portion of the sidewall 122 of the second outer shell 120. At least one fastener 130 is provided in a first area of ​​the sidewall 122 of the second outer shell 120 enclosed by the annular edging 112. The first outer shell 110 and the second outer shell 120 are in contact with each other via the fastener 130. Both the first outer shell 110 and the second outer shell 120 are conductive. After the first outer shell 110 and the second outer shell 120 are joined, they are in contact via the fastener 130, improving the conductive continuity between them. This allows the chassis 100 to provide better shielding against electromagnetic radiation and improves the electromagnetic compatibility of the chassis 100.

[0055] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A chassis for an on-board charger, characterized in that, It includes a first outer shell (110) and a second outer shell (120), the second outer shell (120) and the first outer shell (110) enclosing a receiving space, the first outer shell (110) having a top wall (111) and an annular rim (112), the annular rim (112) extending from the outer edge of the top wall (111) toward the second outer shell (120) to wrap at least part of the side wall (122) of the second outer shell (120). The first area of ​​the sidewall (122) of the second housing (120) which is enclosed by the annular edging (112) is provided with at least one fastener (130).

2. The chassis of the on-board charger as described in claim 1, characterized in that, The fastener (130) includes at least one first fastener (130a) disposed on the annular edging (112).

3. The chassis of the on-board charger as described in claim 2, characterized in that, The first fastener (130 a) is a snap fastener recessed from the annular rim (112) toward the sidewall (122).

4. The chassis of the on-board charger as described in claim 3, characterized in that, The first fastener (130a) includes a guide portion (131) that extends in an arc shape and has a concave surface facing the sidewall (122).

5. The chassis of the on-board charger as described in claim 4, characterized in that, The first fastener (130a) further includes a snap-fit ​​portion (132), which is connected to the guide portion (131). The snap-fit ​​portion (132) extends in an arc shape and its convex surface faces the sidewall (122).

6. The chassis of the on-board charger as described in claim 1, characterized in that, The fastener (130) includes at least one second fastener (130b) disposed on the sidewall (122) of the second housing (120).

7. The chassis of the on-board charger as described in claim 6, characterized in that, The second fastener (130b) is a protrusion that extends from the sidewall (122) toward the annular rim (112).

8. The chassis of the on-board charger as described in claim 7, characterized in that, The end of the second fastener (130b) facing the top wall (111) is provided with a chamfered structure (133) or a rounded corner structure.

9. The chassis of the on-board charger as described in claim 1, characterized in that, The fastener (130) includes at least one first fastener (130a) disposed on the annular edging (112) and at least one second fastener (130b) disposed on the side wall (122) of the second housing (120), the second fastener (130b) cooperating with the first fastener (130a).

10. The chassis of the on-board charger as described in claim 1, characterized in that, The first outer casing (110) is provided with a first connecting hole, and the second outer casing (120) is provided with a second connecting hole corresponding to the position of the first connecting hole. The chassis further includes: A threaded connector (140) is inserted into the first connecting hole and the corresponding second connecting hole to connect the first housing (110) and the second housing (120).

11. An on-board charger, characterized in that, Includes the chassis of the on-board charger as described in any one of claims 1 to 10 and the on-board charging device, wherein the on-board charging device is disposed within the receiving space.

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