Shell assembly and energy storage equipment

Abstract

The embodiment of the utility model relates to the technical field of energy storage equipment, and particularly discloses a shell assembly and energy storage equipment, comprising a shell provided with a first accommodating cavity used for accommodating an energy storage unit; the handle is fixed to the shell, the handle and the shell are integrally formed, the handle is provided with a second containing cavity, and the second containing cavity is communicated with the first containing cavity; the filling body is contained in the second containing cavity, a part of the filling body extends into the first containing cavity, and the part, extending into the first containing cavity, of the filling body is connected with the shell. By means of the mode, the handle integrated with the shell can be utilized, the filling body is contained in the second containing cavity of the handle, and the part, extending into the first containing cavity, of the filling body is connected to the shell, so that the structural strength of the integrated handle and the shell is improved, and the manufacturing cost of the shell assembly is reduced.

Description

Technical Field

[0001] The embodiments of the present utility model relate to the technical field of energy storage housing assemblies, and particularly to a housing assembly and an energy storage device. Background Art

[0002] Energy storage products refer to devices or systems that use different technical means to convert energy into storable forms and release it when needed to supply electricity or heat energy. In actual use scenarios, in order to facilitate the handling or movement of energy storage products, handles are provided for users or mechanical handling operations.

[0003] Existing energy storage products mainly include a housing and a handle. The handle is a separate component and is connected to the housing through screwing, clamping, etc. For energy storage products with such a structure, the structure is complex. As the volume of the energy storage product increases, in order to achieve a stable connection between the handle and the housing, additional hardware components usually need to be configured to ensure the connection strength between the handle and the housing, resulting in a significant increase in the assembly difficulty of the energy storage product, a sharp increase in manufacturing costs, and a significant lack of competitiveness in similar competing products. Summary of the Utility Model

[0004] The main technical problem to be solved by the embodiments of the present utility model is to provide a housing assembly and an energy storage device that can simplify the connection structure between the handle and the housing, ensure its structural strength, and reduce the manufacturing cost of the housing.

[0005] To solve the above technical problem, a technical solution adopted by the present utility model is: to provide a housing assembly including a housing provided with a first receiving cavity for receiving an energy storage unit; a handle fixed to the housing, and the handle and the housing are integrally formed. The handle is provided with a second receiving cavity, and the second receiving cavity communicates with the first receiving cavity; a filling body received in the second receiving cavity, and a part of the filling body extends into the first receiving cavity, and the part of the filling body extending into the first receiving cavity is connected to the housing.

[0006] Optionally, a part of the outer surface of the housing is recessed towards the first receiving cavity to form an avoidance groove on the outer surface of the housing, and both ends of the handle are respectively connected to two opposite side walls of the avoidance groove.

[0007] Optionally, a part of the outer surface of the housing is recessed towards the first receiving cavity to form a convex portion corresponding to the avoidance groove on the inner surface of the housing; the filling body includes a filling portion, a plugging portion, and an abutting portion. The filling portion is located in the second receiving cavity, and both ends of the filling portion are respectively connected to the plugging portion and the abutting portion. The plugging portion is connected to one end of the convex portion, and the abutting portion abuts against the other end of the convex portion.

[0008] Optionally, the abutting portion is provided with an abutting groove, and the other end of the convex portion is received in the abutting groove.

[0009] Optionally, the abutting portion is provided with a cavity.

[0010] Optionally, one end of the convex portion is provided with a convex post, the plugging portion is provided with a jack, and the convex post is plugged into the jack.

[0011] Optionally, the housing includes a cover plate and a bottom case that are detachably connected. The first receiving cavity is provided in the bottom case, and the cover plate covers the opening of the first receiving cavity to close the opening of the first receiving cavity. The avoidance groove, the convex portion, and the handle are all provided on the bottom case, and the convex post is fixed to the cover plate.

[0012] Optionally, the cover plate is provided with a through hole, and the convex post is provided with a threaded hole; the outer shell assembly further includes a screw connector. When the cover plate covers the bottom case, the screw connector passes through the through hole and is screwed into the threaded hole.

[0013] Optionally, the alignment portion is provided with a plugging groove, and the jack is located at the bottom of the plugging groove; the cover plate includes a plate body and an alignment portion extending from the plate body. The through hole penetrates through the plate body and the alignment portion, and the alignment portion is plugged into the plugging groove.

[0014] To solve the above technical problems, another technical solution adopted by the present utility model is: to provide an energy storage device, including an energy storage battery and the above-mentioned outer shell assembly, and the energy storage battery is disposed in the first receiving cavity of the outer shell assembly.

[0015] The beneficial effects of the embodiments of the present utility model are: through the above structure, the handle and the housing can be set as an integral structure, which can be manufactured by injection molding without separate assembly, and the manufacturing cost is low. Moreover, the handle is filled with a filling body to enhance the structural strength of the handle. The filling body is received in the second receiving cavity, and a part of the filling body extends into the first receiving cavity to be connected to the housing. When the handle is subjected to a large external force, the filling body extending into the first receiving cavity and connected to the housing can transmit the force received to the housing through this part, further enhancing the external force that the handle can withstand. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be briefly introduced below. Obviously, the following described drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to the drawings without creative efforts.

[0017] Figure 1It is an exploded structural schematic diagram of the housing assembly provided by an embodiment of the present utility model;

[0018] Figure 2 It is an assembled structural schematic diagram of the housing assembly provided by an embodiment of the present utility model;

[0019] Figure 3 It is a schematic diagram of the housing assembly provided by an embodiment of the present utility model from a top view angle;

[0020] Figure 4 It is Figure 3 A cross-sectional view taken along the A-A direction in

[0021] Figure 5 It is Figure 3 A cross-sectional view taken along the B-B direction in

[0022] Figure 6 It is a structural schematic diagram of the filling body provided by an embodiment of the present utility model;

[0023] Figure 7 It is a three-dimensional structural schematic of the housing provided by an embodiment of the present utility model;

[0024] Figure 8 It is Figure 7 A partial enlarged schematic diagram of part C in Detailed implementation manners

[0025] For the convenience of understanding the present utility model, the present utility model will be described in more detail below in conjunction with the attached drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more intermediate elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more intermediate elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are only for the purpose of illustration.

[0026] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in this specification in the description of the present utility model are only for the purpose of describing specific embodiments and are not used to limit the present utility model. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0027] As the volume of the energy storage device gradually increases, the weight of the energy storage device increases significantly. To facilitate the handling of the energy storage device, a handle needs to be provided on the housing assembly for accommodating the energy storage unit. The conventional setting method is to assemble a handle independent of the housing assembly to the housing through hardware. To assemble the handle to the housing, corresponding assembly structures need to be provided on both the housing assembly and the handle to cooperate with the hardware to connect the handle and the housing assembly. This method requires a high design cost and a complex assembly process, and has insufficient competitiveness in the field of energy storage devices.

[0028] To reduce the design and manufacturing costs and simplify the structure and assembly process, the present utility model provides a housing assembly 1000. Please refer to Figures 1 to 5 , the housing assembly 1000 includes a housing 1, a handle 2 and a filling body 3. The housing 1 and the handle 2 are integrally formed. The filling body 3 is filled in the handle 2 and connected to the housing 1. The filling body 3 improves the structural strength of the handle 2, and the filling body 3 connected to the housing 1 enables the handle 2 to transfer part of the acting force to the housing 1 through the filling body 3 when the handle 2 is subjected to an external acting force, thereby improving the load-bearing strength of the handle 2. For the existing housing assembly 1000 with only the filling body 3 and the filling body 3 not connected to the housing 1, the main stress part of the existing housing assembly 1000 is still the connection position where the handle 2 and the housing 1 are integrally formed. However, the filling body 3 of the present utility model improves the structural strength of the connection position between the handle 2 and the housing 1 and can share the acting force borne by the handle 2.

[0029] Specifically, the housing 1 is provided with a first receiving cavity 11 for receiving the energy storage unit, and the energy storage unit includes, but is not limited to, various types of batteries and the like. The handle 2 is fixed to the housing 1, and the handle 2 and the housing 1 are integrally formed. A gap is left between the handle 2 and the outer side wall of the housing 1 for a human hand or other fixing tools to pass through the gap to move the housing assembly 1000 by grasping or tying the handle 2. The handle 2 is provided with a second receiving cavity 21, and the second receiving cavity 21 communicates with the first receiving cavity 11; the filling body 3 is received in the second receiving cavity 21, and there is no gap between the filling body 3 and the inner wall of the second receiving cavity 21 to make the handle 2 present a solid state and ensure that the handle 2 has sufficient structural strength. And a part of the filling body 3 extends into the first receiving cavity 11, and the part of the filling body 3 extending into the first receiving cavity 11 is connected to the housing 1, so that when the handle 2 is subjected to an external acting force, the handle 2 transfers this acting force to the housing 1 connected to the filling body 3 through the filling body 3 to ensure that the filling body 3 has sufficient load-bearing strength.

[0030] It can be understood that the number of the above-mentioned handles 2 and filling bodies 3 is at least two. The two handles 2 are arranged on the adjacent or spaced edges of the housing 1 to minimize the influence of the handle 2 integrated with the housing 1 on the volume of the first receiving cavity 11 of the housing 1. Moreover, the structural strength at the edge is better than that of the side surface of the housing 1, further ensuring the load-bearing strength of the handle 2.

[0031] Regarding the above-mentioned gap, since it is for facilitating the human hand to grasp or for an object to pass through for bundling, and the handle 2 and the housing 1 are integrally formed, it can be conceived that the gap is formed by means of depression. In some preferred embodiments, a part of the outer surface of the housing 1 is recessed toward the first receiving cavity 11 to form an avoidance groove 12 on the outer surface of the housing 1. The bottom of the avoidance groove 12 is an arc-shaped surface 121 to have sufficient space when guiding the human hand or an object to pass through. Moreover, the design of the arc-shaped surface 121 also makes the avoidance groove 12 more in line with the ergonomic design and can also guide the human hand or a machine to move along the arc-shaped surface 121. The two ends of the handle 2 are respectively connected to two opposite side walls 122 of the avoidance groove 12. It can be understood that the communication position between the first receiving cavity 11 and the second receiving cavity 21 is the position where the two ends of the handle 2 are connected to the two side walls 122.

[0032] It can be understood that the bottom of the avoidance groove 12 can also be planar to save the limited space of the second receiving cavity 21 inside the housing 1.

[0033] Correspondingly, as Figure 5 shown, while the outer surface of the housing 1 is recessed, a convex portion 13 corresponding to the avoidance groove 12 is formed on the inner surface of the housing 1. And there are a first receiving gap 131 and a second receiving gap 132 left between the two ends of the convex portion 13 and the inner wall of the second receiving cavity 21 of the housing 1. The first receiving gap 131 and the second receiving gap 132 are used to receive part of the filling body 3.

[0034] In order to realize the connection structure between the part of the filling body 3 extending into the first receiving cavity 11 and the housing 1, in some embodiments, please refer to Figure 6 together. The filling body 3 includes a filling portion 31, a plugging portion 32 and an abutting portion 33. The filling portion 31 is located in the second receiving cavity 21. The two ends of the filling portion 31 are respectively connected to the plugging portion 32 and the abutting portion 33. The plugging portion 32 is connected to one end of the convex portion 13. The abutting portion 33 abuts against the other end of the convex portion 13. In this embodiment, preferably, the filling body 3 is integrally formed, for example, by means of injection molding, which is convenient for the mass production of the filling body 13.

[0035] It should be noted that since the first receiving cavity 11 communicates with the second receiving cavity 21, and the volume of the cavity 332 of the first receiving cavity 11 is significantly larger than that of the cavity 332 of the second receiving cavity 21, the inner wall cross-sectional area at the connection position between the first receiving cavity 11 and the second receiving cavity 21 gradually decreases. The two end faces of the convex portion 13 are in the shape of a trumpet surface or an inclined straight surface. In this embodiment, preferably, please refer to Figure 5 , one end face of the convex portion 13 at the connection position between the first receiving cavity 11 and the second receiving cavity 21 is a first trumpet surface 1311 whose cross-sectional area gradually decreases from the first receiving cavity 11 to the second receiving cavity 21. The other end face of the convex portion 13 is a second trumpet surface 1321 whose cross-sectional area gradually decreases from the first receiving cavity 11 to the second receiving cavity 21. And the insertion portion 32 fits against the first trumpet surface 1311, and the abutting portion 33 fits against the second trumpet surface 1321. The first trumpet surface 1311 and the inner wall of the first receiving cavity 11 form a first receiving gap 131 in the direction of connecting the second receiving cavity 21 from the first receiving cavity 11. The first receiving gap 131 is used to receive the insertion portion 32; the second trumpet surface 1321 and the inner wall of the first receiving cavity 11 form a second receiving gap 132 in the direction of connecting the second receiving cavity 21 from the first receiving cavity 11. The second receiving gap 132 is used to receive the abutting portion 33.

[0036] As Figure 5 shown, the shape of the insertion portion 32 needs to be adapted to the first receiving gap 131, and the shape of the abutting portion 33 needs to be adapted to the second receiving gap 132. When the insertion portion 32 is received in the first receiving gap 131, the first trumpet surface 1311 of the first receiving gap 131 and the inner wall of the first receiving cavity 11 cooperate to limit the insertion portion 32 together, preventing the insertion portion 32 from moving in the first receiving gap 131; when the abutting portion 33 is received in the second receiving gap 132, the second trumpet surface 1321 of the second receiving gap 132 and the inner wall of the first receiving cavity 11 cooperate to limit the abutting portion 33 together, preventing the abutting portion 33 from moving in the second receiving gap 132.

[0037] It can be understood that when moving the outer shell assembly 1000, usually the handle 2 is held and then the outer shell assembly 1000 is lifted to carry the outer shell assembly 1000. According to the force analysis of the outer shell assembly 1000, when the outer shell assembly 1000 is placed in a horizontal state, during the process of lifting the handle 2 in the vertical direction to move the outer shell assembly 1000, the force borne by the abutting portion 33 of the handle 2 is significantly greater than the force borne by the insertion portion 32 of the handle 2. In order to further improve the connection strength between the abutting portion 33 of the handle 2 and the housing 1, in some embodiments, please refer to Figure 6, the abutting portion 33 is provided with an abutting groove 331, and the other end of the convex portion 13 is received in the abutting groove 331. When the handle 2 is lifted, the side wall 122 of the abutting groove 331 can further transfer the received force to the convex portion 13, so that the connection structure between the housing assembly 1000 and the abutting portion 33 is more stable.

[0038] In order to reduce the overall weight of the housing assembly 1000 and minimize the impact on the connection strength between the handle 2 and the housing 1, in some embodiments, please refer to Figure 6 , the abutting portion 33 is provided with a cavity 332, which realizes the effect of lightening the abutting portion 33 while ensuring the structural strength of the abutting portion 33.

[0039] In order to further improve the bearing strength of the housing assembly 1000 in the direction perpendicular to the handle 2, in some embodiments, please refer to Figure 7 , one end of the convex portion 13 is provided with a convex post 133 perpendicular to the end face of one end of the convex portion 13. The insertion portion 32 is provided with an insertion hole 321, and the convex post 133 is inserted into the insertion hole 321. In this way, the contact mode between the convex portion 13 and the insertion portion 32 is changed from the original surface contact to an inserted connection mode. Moreover, the convex post 133 and the end face of the convex portion 13 are integral and have a certain structural strength. When there is a tendency of relative sliding between the insertion portion 32 and the end face of one end of the convex portion 13, the convex post 133 and the insertion hole 321 can effectively prevent the relative sliding between the insertion portion 32 and the convex portion 13, further improving the structural strength of the handle 2.

[0040] For the above-mentioned housing 1, please refer to Figure 7 and Figure 8 , the housing 1 includes a cover plate 14 and a bottom shell 15 that are detachably connected. The first receiving cavity 11 is provided in the bottom shell 15, and the cover plate 14 covers the opening of the first receiving cavity 11 to close the opening of the first receiving cavity 11. The avoidance groove 12, the convex portion 13, and the handle 2 are all provided on the bottom shell 15, and the convex post 133 is fixed to the cover plate 14.

[0041] It can be understood that the shape of the cross-section of the bottom shell 15 includes, but is not limited to, a rectangle, a circle, or any other irregular shape such as a polygon.

[0042] In some embodiments, please refer to Figure 8 , the cover plate 14 is provided with a through hole 141, and the convex post 133 is provided with a threaded hole 1331; the housing assembly 1000 further includes a screw connector. When the cover plate 14 covers the bottom shell 15, the screw connector passes through the through hole 141 and is screwed into the threaded hole 1331, so that the cover plate 14 is firmly connected to the bottom shell 15.

[0043] Further, in order to strengthen the connection strength between the cover plate 14, the filling body 3 and the bottom shell 15, in some embodiments, please refer back to Figure 6 , the insertion part 32 is provided with an insertion groove 322, the insertion hole 321 is located at the bottom of the insertion groove 322, the cover plate 14 includes a plate body 142 and an alignment part 143 extending from the plate body 142, the alignment part 143 is located on the inner surface of the cover plate 14 facing the first accommodation cavity 11, the through hole 141 penetrates through the plate body 142 and the alignment part 143, the alignment part 143 is inserted into the insertion groove 322, and the alignment part 143 abuts against the bottom of the insertion groove 322, so that when the screw member passes through the through hole 141 and is screwed into the screw hole 1331, the cover plate 14, the filling body 3 and the bottom shell 15 form a relatively stable whole.

[0044] In order to achieve quick alignment between the cover plate 14 and the bottom shell 15, in some embodiments, please refer to Figure 7 , docking parts 144 extend from the four diagonals of the cover plate 14, docking grooves 151 are arranged at the four diagonals of the bottom shell 15, when the cover plate 14 covers the bottom shell 15, the docking parts 144 are inserted into the docking grooves 151, so as to realize the pre-positioning of the cover plate 14 and the bottom shell 15, and facilitate the subsequent connection and fixation of the cover plate 14 and the bottom shell 15.

[0045] It should be noted that the filling body 3 is integrally formed. During the actual processing, the position and shape of the bottom shell 14 of the housing 1 and the handle 3 cause a reverse buckle at the bottom, making it difficult to demold. Therefore, when injecting the bottom shell 14, the filling body 14 is put into the injection mold in advance, so that the filling body serves as part of the mold, and the injection molding process of the bottom shell 14 is completed to form a reverse buckle structure, ensuring the stable connection between the filling body 3 and the bottom shell 14.

[0046] In the embodiment of the present invention, an outer shell assembly 1000 is provided. The outer shell assembly 1000 includes a housing 1, a handle 2 and a filling body 3. The housing 1 and the handle 2 are integrally formed. The filling body 3 is filled in the handle 2 and connected to the housing 1. The filling body 3 improves the structural strength of the handle 2, and the handle 2 connected to the housing 1 enables the handle 2 to transfer the acting force to the housing 1 through the filling body 3 connected to the housing 1 when receiving an external acting force, enhancing the load-bearing capacity of the handle 2. The handle 2 integrally formed with the housing 1 does not require assembly, has a simple structure, is space-saving, reduces the manufacturing cost, and improves the product competitiveness.

[0047] The present invention also provides an embodiment of an energy storage device, including an energy storage device pump body and the above-mentioned outer shell assembly 1000, and an energy storage battery is arranged in the first accommodation cavity 11 of the outer shell assembly 1000.

[0048] It should be noted that the description and drawings of the present utility model provide preferred embodiments of the present utility model. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described in this specification. These embodiments do not serve as additional limitations to the content of the present utility model. The purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive. Moreover, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, all of which are regarded as within the scope described in the description of the present utility model; further, for those of ordinary skill in the art, improvements or transformations can be made according to the above description, and all such improvements and transformations should fall within the protection scope of the appended claims of the present utility model.

Claims

1. An outer shell component, characterized in that, Comprising: A housing provided with a first receiving cavity for receiving an energy storage unit; A handle fixed to the housing and integrally formed with the housing. The handle is provided with a second receiving cavity that communicates with the first receiving cavity; A filling body received in the second receiving cavity, and a part of the filling body extends into the first receiving cavity. The part of the filling body extending into the first receiving cavity is connected to the housing.

2. The outer shell assembly according to claim 1, characterized in that A part of the outer surface of the housing is recessed toward the first receiving cavity to form an avoidance groove on the outer surface of the housing. Both ends of the handle are respectively connected to two opposite side walls of the avoidance groove.

3. The outer shell assembly according to claim 2, characterized in that A part of the outer surface of the housing is recessed toward the first receiving cavity to form a convex part corresponding to the avoidance groove on the inner surface of the housing; The filling body includes a filling part, a plugging part and an abutting part. The filling part is located in the second receiving cavity. Both ends of the filling part are respectively connected to the plugging part and the abutting part. The plugging part is connected to one end of the convex part, and the abutting part abuts against the other end of the convex part.

4. The outer shell assembly according to claim 3, characterized in that The abutting part is provided with an abutting groove, and the other end of the convex part is received in the abutting groove.

5. The outer shell assembly according to claim 4, characterized in that The abutting part is provided with a cavity.

6. The outer shell assembly according to any one of claims 3-5, characterized in that One end of the convex part is provided with a convex column, and the plugging part is provided with a jack. The convex column is plugged into the jack.

7. The outer shell assembly according to claim 6, characterized in that The housing includes a detachable cover plate and a bottom shell. The first receiving cavity is provided in the bottom shell, and the cover plate covers the opening of the first receiving cavity to close the opening of the first receiving cavity. The avoidance groove, the convex part and the handle are all provided on the bottom shell, and the convex column is fixed to the cover plate.

8. The outer shell assembly according to claim 7, characterized in that The cover plate is provided with a through hole, and the convex column is provided with a threaded hole; The outer shell assembly further includes a screwing member. When the cover plate covers the bottom shell, the screwing member passes through the through hole and is screwed into the threaded hole.

9. The outer shell assembly according to claim 8, characterized in that The plugging part is provided with a plugging groove, and the jack is located at the bottom of the plugging groove; The cover plate includes a plate body and an alignment part extending from the plate body. The through hole penetrates through the plate body and the alignment part, and the alignment part is plugged into the plugging groove.

10. An energy storage device, characterized in that, An energy storage battery and the outer shell assembly according to any one of claims 1-9, and the energy storage battery is arranged in the first receiving cavity of the outer shell assembly.

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