Housing

Abstract

The utility model provides a shell which is formed by paper pulp, at least part of the surface of content is wrapped by the shell, and the shell comprises an inner shell. The inner shell comprises a first structure part and a second structure part, the first structure part and the second structure part jointly define a containing space, and the content is located in the containing space. The first structure part surrounds at least part of the circumference of the content, at least part of the upper edge of the first structure part is bent towards the upper surface of the content, and the lower edge end face of the first structure part is provided with a first joint face. The second structure part surrounds at least part of the circumference of the content, and the upper edge end face of the second structure part is fixedly pasted to the first structure part at the position of the first joint face. In the embodiment of the utility model, the first structure part and the second structure part can be respectively molded and prepared and then are pasted and assembled, so that the problem of difficult demolding can be avoided, the product yield is improved, and the paper pulp support can be favorably used as a protective shell or a limiting shell of an electronic product.

Description

Technical Field

[0001] The utility model generally relates to the technical field of pulp supports, in particular to a shell. Background Art

[0002] Paper pulp trays are simple to manufacture, low-cost, and easily recyclable. Adding colorants, forming agents, and waterproofing agents to the pulp can improve the performance of the trays. These trays can be used in a wide range of applications, including packaging, outer shell decoration, and cushioning.

[0003] When using a paper pulp tray as a protective shell or limiting shell for electronic products such as mobile phones, in order to prevent the electronic products from falling out of the paper pulp tray, it is necessary to use the paper pulp tray to limit the electronic products. However, the existing paper pulp tray molding process cannot directly form a limiting structure on the paper pulp tray, otherwise it will lead to failure to demold, or demolding difficulties will lead to a decrease in product yield, which limits the application of paper pulp trays as protective shells or limiting shells for electronic products.

[0004] The contents of the background technology section are merely the technologies known to the inventors and do not necessarily represent the existing technologies in this field. Utility Model Content

[0005] In view of one or more deficiencies in the prior art, the present invention provides a shell formed from paper pulp, the shell covering at least a portion of the surface of the contents, the shell comprising:

[0006] An inner shell, the inner shell comprising a first structural portion and a second structural portion, the first structural portion and the second structural portion jointly defining an accommodating space, the contents being located in the accommodating space;

[0007] The first structure portion surrounds at least a portion of the circumference of the contents, an upper edge of the first structure portion is at least partially bent toward the upper surface of the contents, and a lower edge end surface of the first structure portion has a first joint surface;

[0008] The second structure part surrounds at least a portion of the circumference of the content, and the upper edge end surface of the second structure part is adhered and fixed to the first structure part at the position of the first joint surface.

[0009] According to one aspect of the present invention, the included angle at any position of the inner side wall of the first structural part is greater than or equal to 90°; the included angle at any position of the inner side wall of the second structural part is greater than or equal to 90°.

[0010] According to one aspect of the present invention, at least a portion of the lower edge of the second structure portion is bent toward the lower surface of the content; or, the second structure portion covers the lower surface of the content.

[0011] According to one aspect of the present invention, the housing further comprises:

[0012] An outer shell is covered on the outer side of the inner shell.

[0013] According to one aspect of the present invention, the housing comprises:

[0014] a third structure portion, the third structure portion surrounding at least a portion of the circumference of the first structure portion, the upper edge of the third structure portion at least partially bent toward the upper surface of the contents, and the lower edge end surface of the third structure portion having a second joint surface;

[0015] The fourth structural part surrounds at least a portion of the circumference of the second structural part, and the upper edge end surface of the fourth structural part is adhered and fixed to the third structural part at the position of the second joint surface.

[0016] According to one aspect of the present invention, the first joint surface and the second joint surface are staggered.

[0017] According to one aspect of the present invention, the inner side wall of the third structure part is fixed to the outer side wall of the first structure part by pasting; the inner side wall of the fourth structure part is fixed to the outer side wall of the second structure part by pasting.

[0018] According to one aspect of the present invention, the lower edge end surfaces at different positions of the first structural part are in the same plane; the lower edge end surfaces at different positions of the third structural part are in the same plane, and the lower edge end surface of the first structural part is parallel to the lower edge end surface of the third structural part.

[0019] According to one aspect of the present invention, the wall thickness of the first structure portion is equal to the wall thickness of the second structure portion, and the side wall of the first structure portion is aligned with the side wall of the second structure portion.

[0020] According to one aspect of the present invention, the inner shell and the outer shell include at least one avoidance hole, and the avoidance hole passes through the inner shell and the outer shell.

[0021] Compared with the prior art, an embodiment of the present utility model provides a shell, wherein the inner shell includes a first structural part and a second structural part, the first structural part and the second structural part are pasted and fixed at the position of the first joint surface, the first structural part and the second structural part can be formed and prepared separately and then pasted and assembled, and a bend can be formed on the upper edge of the first structural part to limit the contents and avoid the problem of difficulty in demolding, thereby improving the product yield and facilitating the use of the pulp tray as a protective shell or limiting shell for electronic products. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 is a schematic cross-sectional view of a housing in some embodiments of the present invention;

[0024] Figure 2 is an exploded schematic diagram of a housing in some embodiments of the present invention;

[0025] Figure 3 It is a schematic diagram of the formation of the first structural part or the third structural part in some embodiments of the present utility model. DETAILED DESCRIPTION

[0026] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0027] In the description of the present invention, it should be understood that terms such as "center," "longitudinal," "transverse," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," and "counterclockwise" are used to indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance or to implicitly specify the number of the technical features referred to. Therefore, features designated "first" or "second" may explicitly or implicitly include one or more of the aforementioned features. In the description of the present invention, “plurality” means two or more, unless otherwise clearly and specifically defined.

[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, removable, or integral connections; mechanical, electrical, or intercommunication connections; direct or indirect connections through an intermediary; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0029] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact via another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or diagonally above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or diagonally below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0030] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but a person of ordinary skill in the art will recognize the application of other processes and / or the use of other materials.

[0031] The following describes embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0032] Figure 1 Schematic cross-sectional views of the housing 100 according to some embodiments of the present invention are shown. Figure 2 The exploded schematic diagram of the shell 100 in some embodiments of the present invention is shown. The shell 100 is made of pulp and is used to cover the contents. The shell 100 covers at least part of the surface of the contents. Figure 1 and Figure 2 The housing 100 will be described.

[0033] like Figure 1 and Figure 2 As shown, the shell 100 includes an inner shell 110. The inner shell 110 includes a first structural portion 111 and a second structural portion 112. The first structural portion 111 and the second structural portion 112 together define a accommodating space, and the contents can be located in the accommodating space. The accommodating space is not limited to completely covering the contents. In some embodiments, the accommodating space has an opening, and the contents can be exposed at the position of the opening or extend to the outside of the accommodating space. Preferably, the accommodating space defined by the first structural portion 111 and the second structural portion 112 fits the contents, for example, the inner side walls of the first structural portion 111 and the second structural portion 112 are determined according to the size and shape of the contents.

[0034] In this embodiment, the first structure portion 111 surrounds at least a portion of the circumference of the contents. For example, Figure 2 As shown in the figure, the first structural portion 111 is generally a square ring that surrounds the side of the contents. In some embodiments, the first structural portion 111 has a notch in the direction surrounding the contents. For example, if the contents are electronic products such as mobile phones, the location of the notch can correspond to the external interface of the electronic product. In other embodiments, the first structural portion 111 may only cover a portion of the circumferential side of the contents, for example, the sidewall of the first structural portion 111 may be partially hollowed.

[0035] The upper edge of the first structure portion 111 is at least partially bent toward the upper surface of the contents. Figure 1 The first structural portion 111 has an open opening, for example, a portion of the upper surface of the contents is exposed at the opening. A first fold 113 is provided at the upper edge of the first structural portion 111, folding inward toward the contents. The first fold 113 can limit the contents to prevent them from escaping from the opening.

[0036] In some embodiments, the first folded corner 113 may be provided throughout the entire upper edge of the first structural portion 111. In other embodiments, the first folded corner 113 may be provided only in a portion of the upper edge of the first structural portion 111. For example, the first folded corner 113 may be provided at four corners of the upper edge of the first structural portion 111, while the rest of the upper edge of the first structural portion 111 may be end surfaces substantially parallel to the upper surface of the contents.

[0037] like Figure 1 As shown, the lower edge surface of the first structural portion 111 has a first joint surface 114. In different embodiments, the first joint surface 114 can be a plane, a serrated surface, or an inclined surface, which will be described in detail in subsequent embodiments.

[0038] The second structural portion 112 surrounds at least a portion of the circumference of the contents. Figure 2As shown in FIG, the sidewall of the second structural portion 112 is generally a square ring that surrounds the circumference of the contents. Notches are provided at some locations on the sidewall of the second structural portion 112, for example, to allow for the contents to pass through. In some embodiments, the second structural portion 112 may be configured to cover only a portion of the circumferential side of the contents, for example, by providing sidewalls of the second structural portion 112 only at the four corners.

[0039] like Figure 1 As shown, the upper edge of the second structure portion 112 is attached to and fixed to the first structure portion 111 at the location of the first joint surface 114. For example, the upper edge of the second structure portion 112 is parallel to the first joint surface 114, and an adhesive is added to the upper edge of the second structure portion 112 or the first joint surface 114 to adhere and fix the first structure portion 111 and the second structure portion 112, thereby defining an accommodation space within the first structure portion 111 and the second structure portion 112.

[0040] In this embodiment, the first structural portion 111 and the second structural portion 112 can be manufactured separately. During the processing of the first structural portion 111, the bend of at least a portion of the upper edge of the first structural portion 111 toward the contents does not affect the demolding of the first structural portion 111, thereby improving product yield. The lower edge of the first structural portion 111 and the upper edge of the second structural portion 112 are bonded and fixed at the location of the first joint surface 114, which can confine the contents and facilitate the use of the pulp tray as a protective case or a retaining case for electronic products.

[0041] In some embodiments, the paper pulp-molded housing 100 can serve as a decorative protective shell for electronic products or as part of an inner packaging box for electronic products, used to position the electronic products. The paper pulp-molded housing 100 is simple to manufacture, with the first structural portion 111 and the second structural portion 112 being integrally formed and then bonded together. This reduces manufacturing costs, and the paper pulp material is easily recyclable, facilitating resource utilization and reducing environmental pollution.

[0042] Preferably, Figure 2 As shown, the angle at any position on the inner sidewall of the first structural portion 111 is greater than or equal to 90°. The angle at any position on the inner sidewall of the second structural portion 112 is greater than or equal to 90°. This embodiment can further reduce the difficulty of molding the first structural portion 111 and the second structural portion 112, facilitate the molding and demolding of the first structural portion 111 and the second structural portion 112, and improve the product yield.

[0043] In some embodiments, the lower edge of the second structure portion 112 is at least partially bent toward the lower surface of the contents to define the lower surface of the contents, wherein the portion of the lower edge of the second structure portion 112 bent toward the lower surface of the contents may be substantially similar to the portion of the upper edge of the first structure portion 111 bent toward the upper surface of the contents in the aforementioned embodiment. Alternatively, Figure 1 and Figure 2 As shown, the second structural portion 112 covers the lower surface of the contents. For example, the second structural portion 112 includes a bottom surface that is in contact with the lower surface of the contents. The second structural portion 112 has a bend between the bottom surface and the side wall. Preferably, the angle at the bend between the bottom surface and the side wall of the second structural portion 112 is greater than or equal to 90°.

[0044] In this embodiment, the second structure portion 112 can confine the contents on the lower surface of the contents, and the lower edge of the second structure portion 112 is bent toward the lower surface of the contents, or the bottom surface of the second structure portion 112 does not affect the molding and demolding of the second structure portion 112. The housing 100 can cover the sides of the contents, and a bent limiting structure is provided on both the upper and lower surfaces of the contents to define the position of the contents, prevent the contents from escaping from the housing 100, or shaking in the housing 100, thereby protecting the contents.

[0045] See also Figure 1 and Figure 2 According to a preferred embodiment of the present invention, the housing 100 further includes an outer shell 120. The outer shell 120 covers the outer side of the inner shell 110. The outer shell 120 can further protect the inner shell 110 and the contents, and in some embodiments, the outer shell 120 can perform different functions from the inner shell 110. For example, the inner shell 110 and the outer shell 120 can be made of different pulp moldings. The outer shell 120 is harder than the inner shell 110, or has better waterproof and collision resistance. The inner shell 110 can provide flexible protection for the contents, and the outer shell 120 can reduce the impact of the environment on the contents.

[0046] Preferably, reference Figure 1 and Figure 2 The housing 120 includes a third structural portion 121 and a fourth structural portion 122. The third structural portion 121 surrounds at least a portion of the circumference of the first structural portion 111. The third structural portion 121 is sleeved onto the outside of the first structural portion 111. The sidewalls of the third structural portion 121 can be roughly square-shaped, circumferentially surrounding the outer side of the first structural portion 111, or partially empty. The empty portions of the sidewalls of the third structural portion 121 can be used for decoration or to avoid external interfaces.

[0047] The upper edge of the third structure portion 121 is at least partially bent toward the upper surface of the contents, for example Figure 1As shown in , the third structural portion 121 includes a second folded corner 123. Preferably, the position of the second folded corner 123 corresponds to the position of the first folded corner 113 in the first structural portion 111. The third structural portion 121 in this embodiment can further limit the content and increase the contact area between the third structural portion 121 and the first structural portion 111, which is conducive to improving the bonding strength between the third structural portion 121 and the first structural portion 111.

[0048] In some embodiments, the second folded corner 123 may completely cover the upper edge of the third structure portion 121 , or the second folded corner 123 may be provided only at a portion of the upper edge of the third structure portion 121 .

[0049] like Figure 1 As shown, the lower edge surface of the third structural portion 121 has a second joint surface 124. In some embodiments, the second joint surface 124 can be a plane, a serrated surface, or an inclined surface.

[0050] The fourth structural portion 122 surrounds at least a portion of the circumference of the second structural portion 112. For example, the sidewall of the fourth structural portion 122 can be configured as a square ring having a shape substantially similar to that of the sidewall of the third structural portion 121, surrounding the outer circumference of the second structural portion 112. Preferably, a notch is provided on the sidewall of the fourth structural portion 122, which can correspond to the position of the notch on the second structural portion 112.

[0051] In this embodiment, the upper edge of the fourth structural portion 122 is adhered and fixed to the third structural portion 121 at the location of the second joint surface 124. Preferably, the sidewalls of the third structural portion 121 and the sidewall edges of the fourth structural portion 122 are aligned, and the upper edge of the fourth structural portion 122 and the lower edge of the third structural portion 121 are affixed and adhered and fixed by the action of an adhesive.

[0052] In this embodiment, the third structural portion 121 and the fourth structural portion 122 can also be made of pulp molding. At the same time, the shape of the third structural portion 121 can be roughly similar to the shape of the first structural portion 111 in the aforementioned embodiment, and the shape of the fourth structural portion 122 can be roughly similar to the shape of the second structural portion 112 in the aforementioned embodiment. This can reduce the difficulty of pulp molding the third structural portion 121 and the fourth structural portion 122 and facilitate demolding. For example, the first structural portion 111 and the third structural portion 121 can both be shaped like a frame that is through-through and open on one side. The second structural portion 112 and the fourth structural portion 122 can be shaped like a frame with an open top. The second structural portion 112 and the fourth structural portion 122 both include a bottom surface, wherein the bottom surface of the fourth structural portion 122 can be in contact with the bottom surface of the second structural portion 112.

[0053] Preferably, Figure 1As shown in the figure, the bending angles of the first folding corner 113 of the first structural part 111 and the second folding corner 123 of the third structural part 121 are approximately equal, and the upper edge end faces of the first structural part 111 and the third structural part 121 are aligned. The embodiment can prevent steps or overhangs of the first structural part 111 and the third structural part 121 at the end face position, and is beneficial to improve the structural stability of the first structural part 111 and the third structural part 121.

[0054] As shown in the figure, according to the preferred embodiment of the utility model, the first joint surface 114 and the second joint surface 124 are staggered, which can improve the structural strength of the shell 100, and reduce the risk of separation of the first structural part 111 and the second structural part 112 at the position of the first joint surface 114, and the third structural part 121 and the fourth structural part 122 at the position of the second joint surface 124. Figure 1 Specifically, for example, the inner side surface of the third structural part 121 corresponds to the position of the first joint surface 114, and the outer side surface of the second structural part 112 corresponds to the position of the second joint surface 124. Even if the first joint surface 114 or the second joint surface 124 separates, it does not affect the shell 100 covering the outside of the content.

[0055] Further, in the preferred embodiment of the utility model, the inner side wall of the third structural part 121 is pasted and fixed with the outer side wall of the first structural part 111. The inner side wall of the fourth structural part 122 is pasted and fixed with the outer side wall of the second structural part 112. The embodiment can improve the structural strength of the shell 100.

[0056] Preferably, the adhesive is arranged in the entire range of the first structural part 111 and the third structural part 121, and the adhesive is arranged in the entire range of the second structural part 112 and the fourth structural part 122. The embodiment increases the pasting area in the form of increasing the bonding strength of the inner shell 110 and the outer shell 120, and reduces the cavity between the inner shell 110 and the outer shell 120, so that the shell 100 is attached to the surface of the content. In combination with the foregoing embodiment, under the condition that the first structural part 111 and the third structural part 121 are pasted and fixed, and the second structural part 112 and the fourth structural part 122 are pasted and fixed, the first joint surface 114 and the second joint surface 124 are staggered, which can further improve the structural strength of the shell 100 and reduce the risk of adhesive fracture.

[0057]

[0058] The figure shows the forming and processing process of the first structural part 111 or the third structural part 121 according to the preferred embodiment of the utility model. Referring to the figure, Figure 3 Figure 3 ​The first structural portion 111 or the third structural portion 121 can be formed by cutting a blank, wherein the blank can be a pulp-molded shape with one side open, the open side serving as a demolding direction, and a flush end surface at the sidewall of the open side, which can serve as the lower edge end surface of the first structural portion 111 or the third structural portion 121. After the blank is formed, the first structural portion 111 or the third structural portion 121 can be obtained by cutting the top surface, eliminating the need for separate processing of the bend toward the upper surface of the contents, thereby simplifying the forming steps of the first structural portion 111 or the third structural portion 121. Furthermore, the shape of the blank with one side open facilitates molding using a mold, which can reduce processing costs.

[0059] Preferably, in some embodiments, the lower edge end surfaces at different positions of the first structure portion 111 are in the same plane. The lower edge end surfaces at different positions of the third structure portion 121 are in the same plane, and the lower edge end surface of the first structure portion 111 is parallel to the lower edge end surface of the third structure portion 121. Figure 3 The top surface of the blank shown in FIG is parallel. In this embodiment, the first joint surface 114 and the second joint surface 124 are both planes, and the first structural portion 111 and the third structural portion 121 can be Figure 3 The method shown is used to obtain the product, which is beneficial to reducing the processing difficulty and processing cost.

[0060] In some embodiments, the wall thickness of the first structural portion 111 is equal to the wall thickness of the second structural portion 112, and the side walls of the first structural portion 111 and the side walls of the second structural portion 112 are aligned. The first structural portion 111 and the second structural portion 112 can be flush at the first joint surface 114 to prevent the formation of a step shape that affects structural strength. Accordingly, the wall thickness of the third structural portion 121 and the wall thickness of the fourth structural portion 122 can also be equal.

[0061] like Figure 2 As shown, in some embodiments, the inner shell 110 and the outer shell 120 include at least one escape hole 130, and the location of the escape hole 130 passes through the inner shell 110 and the outer shell 120, so that a portion of the contents can extend from the location of the escape hole 130 to the outside of the shell 100, or can extend from the location of the escape hole 130 to the inside of the shell 100 to connect with the contents. Specifically, the contents can be a mobile phone, and the location of the escape hole 130 can correspond to the data port, side buttons, and the camera protruding from the back of the mobile phone.

[0062] Finally, it should be noted that: the above only for the embodiment of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for the person skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A shell made of pulp, the shell covering at least part of the surface of the content, characterized in that: The housing comprises: An inner shell, the inner shell comprising a first structural portion and a second structural portion, the first structural portion and the second structural portion jointly defining an accommodating space, the contents being located in the accommodating space; The first structure portion surrounds at least a portion of the circumference of the contents, an upper edge of the first structure portion is at least partially bent toward the upper surface of the contents, and a lower edge end surface of the first structure portion has a first joint surface; The second structure part surrounds at least a portion of the circumference of the content, and the upper edge end surface of the second structure part is adhered and fixed to the first structure part at the position of the first joint surface.

2. The housing according to claim 1, wherein: The included angle at any position of the inner side wall of the first structural part is greater than or equal to 90°; the included angle at any position of the inner side wall of the second structural part is greater than or equal to 90°.

3. The housing according to claim 2, wherein: The lower edge of the second structure portion is at least partially bent toward the lower surface of the content; or the second structure portion covers the lower surface of the content.

4. The housing according to claim 2, wherein: The housing further comprises: An outer shell is covered on the outer side of the inner shell.

5. The housing according to claim 4, wherein: The housing comprises: a third structure portion, the third structure portion surrounding at least a portion of the circumference of the first structure portion, the upper edge of the third structure portion at least partially bent toward the upper surface of the contents, and the lower edge end surface of the third structure portion having a second joint surface; The fourth structural part surrounds at least a portion of the circumference of the second structural part, and the upper edge end surface of the fourth structural part is adhered and fixed to the third structural part at the position of the second joint surface.

6. The housing according to claim 5, wherein: The first joint surface and the second joint surface are offset.

7. The housing according to claim 5, wherein: The inner side wall of the third structure part is glued and fixed to the outer side wall of the first structure part; the inner side wall of the fourth structure part is glued and fixed to the outer side wall of the second structure part.

8. The housing according to claim 5, wherein: The lower edge end surfaces at different positions of the first structure part are in the same plane; the lower edge end surfaces at different positions of the third structure part are in the same plane, and the lower edge end surface of the first structure part is parallel to the lower edge end surface of the third structure part.

9. The housing according to any one of claims 1 to 8, characterized in that The wall thickness of the first structure portion is equal to the wall thickness of the second structure portion, and the side wall of the first structure portion is aligned with the side wall of the second structure portion.

10. The housing according to any one of claims 4 to 8, characterized in that The inner shell and the outer shell include at least one avoidance hole, and the avoidance hole passes through the inner shell and the outer shell.

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