Cabinet body connecting structure, energy storage cabinet body and energy storage device

Abstract

The utility model relates to the technical field of new energy, in particular to a cabinet body connecting structure, an energy storage cabinet body and an energy storage device, the cabinet body connecting structure comprises a cabinet body, the cabinet body comprises a frame body structure, the frame body structure is provided with side walls, and the side walls are provided with connecting seats which are oppositely arranged; the cross beam is arranged in the cabinet body, and the two ends of the cross beam are connected with the connecting seats on the two side walls respectively; wherein the two ends of the cross beam are provided with tenon-and-mortise connectors, and the tenon-and-mortise connectors and the connecting seats form a tenon-and-mortise connecting structure. Through the connecting seats arranged in the cabinet body and the tenon-and-mortise connectors arranged at the two ends of the cross beam, the tenon-and-mortise connectors and the connecting seats are connected in a tenon-and-mortise connecting structure mode, on one hand, the convenience of installation is improved, on the other hand, the use of connecting pieces is reduced, welding is not needed, and the cost is reduced. And the reliability is improved while the labor and material cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of new energy technology, and in particular to a cabinet connection structure, an energy storage cabinet, and an energy storage device. Background Technology

[0002] An energy storage cabinet is a type of cabinet used to store battery modules. It typically includes uprights and crossbeams. The uprights and crossbeams together form a cavity for storing the battery modules. When installing the battery modules, the lower crossbeams are first connected to the uprights, then a set of battery modules is fixed to the crossbeams, followed by the installation of the upper crossbeams and the battery modules.

[0003] In related technologies, the connection structure of the cabinet usually uses bolts or welding to connect the beams and columns. However, due to the large number of beams, using bolts will increase the overall weight of the energy storage cabinet, and the bolts are also prone to loosening under long-term shear force. Welding, on the other hand, will increase labor and material costs, and there are also certain safety risks associated with working with electricity. Utility Model Content

[0004] In view of at least one of the above technical problems, the present invention provides a cabinet connection structure, an energy storage cabinet and an energy storage device, and adopts structural improvements to enhance the convenience and reliability of beam connection.

[0005] According to a first aspect of the present invention, a cabinet connection structure is provided, comprising:

[0006] The cabinet body includes a frame structure, the frame structure has side walls, and the side walls have connecting seats disposed opposite to each other;

[0007] A crossbeam is installed inside the cabinet body, and both ends of the crossbeam are connected to the connecting seats on the two side walls respectively.

[0008] The crossbeam has tenon and mortise joints at both ends, and the tenon and mortise joints and the connecting seat form a tenon and mortise connection structure.

[0009] Furthermore, the mortise and tenon joint and the connecting seat are connected using a straight tenon structure.

[0010] Furthermore, both the crossbeam and the connecting seat are rectangular tube structures. The width of the crossbeam is greater than the width of the connecting seat. The bottom of the tenon joint has an opening that extends to the outer end of the tenon joint. The width of the opening is configured such that the two side walls of the tenon joint are engaged with the outer wall of the connecting seat.

[0011] Furthermore, the tenon joint head also has a first pin hole on the sidewalls on both sides of the opening, and the sidewall of the connector has a second pin hole that matches the first pin hole. The first pin hole and the second pin hole are used to insert pins.

[0012] Furthermore, the mortise and tenon joint and the connecting seat are connected using a dovetail tenon structure.

[0013] Furthermore, the side wall of the mortise and tenon joint has a first dovetail groove with an inwardly recessed design, and the connecting seat has a second dovetail groove that opens to the outer end, and the mortise and tenon joint is engaged in the second dovetail groove.

[0014] Furthermore, the bottom of the tenon joint has a third dovetail groove that communicates with the outside, and the side wall of the connector has a fourth dovetail groove that matches the third dovetail groove. The connector is engaged in the third dovetail groove.

[0015] Furthermore, multiple battery support seats are fixed on the top surface of the crossbeam. The battery support seats are in the shape of semi-circular clamps. A battery card holder is fixed on the bottom surface of the crossbeam. The battery card holder has an arc-shaped limiting wall that matches the battery support seat.

[0016] The crossbeam at the front end also has a cell fixing bracket, which is fixed to the battery support base and has a through hole for the cell to pass through.

[0017] According to a second aspect of the present invention, an energy storage cabinet is provided, comprising a cabinet connection structure as described in any one of the first aspects.

[0018] According to a third aspect of the present invention, an energy storage device is provided, comprising an energy storage cabinet as described in the second aspect.

[0019] The beneficial effects of this utility model are as follows: This utility model uses a connecting seat set inside the cabinet body and mortise and tenon connectors set at both ends of the crossbeam. The mortise and tenon connectors are connected to the connecting seat using a mortise and tenon connection structure. On the one hand, it improves the convenience of installation, and on the other hand, it reduces the use of connecting parts and eliminates the need for welding. This reduces labor and material costs while improving reliability. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the energy storage cabinet in an embodiment of the present invention;

[0022] Figure 2 As an embodiment of this utility model Figure 2 A magnified schematic diagram of the structure at point A in the diagram;

[0023] Figure 3 As an embodiment of this utility model Figure 2 A schematic diagram of the explosive decomposition structure in the image;

[0024] Figure 4 This is a schematic diagram of the connection structure between the tenon and mortise connector and the connector seat in an embodiment of this utility model;

[0025] Figure 5 This is a schematic diagram of another mortise and tenon joint and connecting seat connection structure in an embodiment of this utility model;

[0026] Figure 6 As an embodiment of this utility model Figure 5 A schematic diagram of the deformation of the connection structure in the diagram;

[0027] Figure 7 This is a schematic diagram of another connection structure between a tenon and mortise connector and a connector base in an embodiment of this utility model;

[0028] Figure 8 This is a schematic diagram of the structure of the crossbeam supporting the battery cell in an embodiment of this utility model;

[0029] Figure 9 As an embodiment of this utility model Figure 8 A magnified schematic diagram of the structure at point B in the diagram;

[0030] Figure 10 As an embodiment of this utility model Figure 8 A magnified schematic diagram of the structure at point C in the diagram;

[0031] Figure 11 This is a schematic diagram of the energy storage device in an embodiment of the present invention.

[0032] Explanation of reference numerals in the attached drawings: 1. Cabinet body; 11. Frame structure; 12. Side wall; 13. Connecting seat; 131. Second pin hole; 132. Second dovetail groove; 133. Fourth dovetail groove; 2. Crossbeam; 21. Tenon and mortise connector; 211. Opening; 212. First pin hole; 213. First dovetail groove; 214. Third dovetail groove; 22. Battery support seat; 23. Battery holder; 24. Battery cell fixing bracket; 24a. Through hole. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] like Figures 1 to 10 The cabinet connection structure shown includes the cabinet body 1 and the crossbeam 2, specifically as follows: Figure 1 and Figure 2 As shown, the cabinet body 1 includes a frame structure 11, the frame structure 11 having side walls 12, and connecting seats 13 disposed opposite to each other on the side walls 12. It should be noted that, in embodiments of this invention, the cabinet body 1 can be formed by assembling uprights, or the uprights can be connected by crossbars to form the frame structure 11. In embodiments of this invention, the side walls 12 can be uprights connected between the crossbars, or they can be plates fixed to one side of the crossbars and uprights. The connecting seats 13 have various structural forms; in some embodiments of this invention, they can be rod-like structures fixed to the side walls 12 by screws, or they can be connectors welded to the uprights.

[0037] Please continue to refer to Figure 1 In this embodiment of the invention, the crossbeam 2 is disposed inside the cabinet body 1, and both ends of the crossbeam 2 are respectively connected to the connecting seats 13 on the two side walls 12; please refer to Figure 2 and Figure 3In an embodiment of this utility model, the two ends of the crossbeam 2 have mortise and tenon joints 21, and the mortise and tenon joints 21 and the connecting seat 13 constitute a mortise and tenon connection structure. It should be noted that the mortise and tenon connection structure has various forms, including straight tenon connection structure, dovetail tenon connection structure, cross tenon, hook tenon, and other structural forms. The following part of the embodiment of this utility model will provide an exemplary description of the above-mentioned mortise and tenon structure.

[0038] In the above embodiment, the connecting seat 13 provided in the cabinet body 1 and the tenon and mortise connectors 21 provided at both ends of the crossbeam 2 are connected to the connecting seat 13 by means of tenon and mortise connection structure. On the one hand, the convenience of installation is improved, and on the other hand, the use of connecting parts is reduced and welding is not required. This reduces labor and material costs while improving reliability.

[0039] In some embodiments of this utility model, the mortise and tenon joint 21 and the connecting seat 13 are connected using a straight tenon structure. The straight tenon structure is simple to process, requiring only straight cutting without complex tools, and also possesses high vertical compressive strength. Please refer to [reference needed] for details. Figure 3 and Figure 4 In this embodiment of the invention, both the crossbeam 2 and the connecting seat 13 are rectangular tube structures. The width of the crossbeam 2 is greater than the width of the connecting seat 13. The bottom of the tenon-and-mortise connector 21 has an opening 211 that extends to the outer end of the tenon-and-mortise connector 21. The width of the opening 211 is configured such that the two side walls 12 of the tenon-and-mortise connector 21 are engaged with the outer wall of the connecting seat 13. In the specific processing, only a rectangular tube with a width greater than that of the connecting seat 13 needs to be selected as the crossbeam 2. Then, the bottom of both ends of the crossbeam 2 is cut so that the cut opening 211 is greater than the width of the connecting seat 13, so that the two ends of the crossbeam 2 can be fastened to the connecting seat 13. Of course, it should be noted that in this embodiment of the invention, the length of the opening 211 can also be set to be less than the length of the connecting seat 13. In the specific installation, one end of the connecting seat 13 can be inserted into the crossbeam 2 first, and then backed out so that the other end of the connecting seat 13 is also inserted into the crossbeam 2. In some embodiments, for example, the width of the outer wall of the connecting seat 13 is 30mm, the spacing of the inner wall of the crossbeam 2 in the width direction can be set to 32mm, and the width of the opening 211 is greater than 30mm, so that the crossbeam 2 can be clamped on the connecting seat 13.

[0040] In this embodiment of the invention, to further improve the reliability of the connection of the crossbeam 2, please continue to refer to... Figure 4The mortise and tenon joint 21 has a first pin hole 212 on the side walls 12 on both sides of the opening 211, and the side wall 12 of the connecting seat 13 has a second pin hole 131 that matches the first pin hole 212. The first pin hole 212 and the second pin hole 131 are used to insert pins. In this way, by inserting pins, the swaying of the crossbeam 2 in its length direction can be avoided, thereby further improving the reliability of the connection.

[0041] In the embodiments of this utility model, the mortise and tenon joint 21 and the connecting seat 13 are connected by a dovetail tenon structure. The dovetail tenon is named for the similarity between the trapezoidal design of its tenon and mortise and the structure of its dovetail. Its trapezoidal bevel design causes the tenon to generate internal compressive force when under tension, and the structure becomes tighter and tighter as it is pulled, which can prevent the tenon from coming off.

[0042] Specifically, such as Figure 5 As shown, the side wall 12 of the mortise and tenon joint 21 has a recessed first dovetail groove 213, and the connecting seat 13 has a second dovetail groove 132 that opens to the outer end. The mortise and tenon joint 21 is engaged in the second dovetail groove 132. The first dovetail groove 213 can be provided on one side of the mortise and tenon joint 21 or on both sides. The second dovetail groove 132 opens to the outer end and adopts a structure that is wider on the outside and narrower on the inside. It is adapted to the structure of the first dovetail groove 213, so that the crossbeam 2 can be engaged in the second dovetail groove 132. This structure improves the ease of installation, as it only requires aligning with the second dovetail groove 132 and engaging. In addition, in order to limit the vertical movement, the tenon and mortise of the dovetail tenon can be fixed by opening a threaded hole.

[0043] In some variations of this utility model, such as Figure 6 As shown in the figure, the dovetail groove can also be set to run through the crossbeam 2, specifically as follows: Figure 6 The bottom of the tenon joint 21 has a third dovetail groove 214 that communicates with the outside. The two side walls 12 of the connecting seat 13 have fourth dovetail grooves 133 that fit the third dovetail groove 214. The connecting seat 13 is engaged within the third dovetail groove 214. Both of these forms fall within the protection scope of this utility model, and their effects are similar to the structures described above, so they will not be elaborated further here. Furthermore, it should be noted that in the embodiments of this utility model, the dovetail joint structure can be modified in other ways, such as... Figure 7 As shown, changing the trapezoidal dovetail groove to an arc-shaped structure still falls within the protection scope of this utility model.

[0044] In this embodiment of the invention, the crossbeam 2 serves to support the battery cell; please refer to the following for details. Figure 11 and Figure 8Multiple battery support seats 22 are also fixed on the top surface of the crossbeam 2. The battery support seats 22 are semi-circular clamp-shaped, such as... Figure 9 As shown in the embodiment of this utility model, the supported component is a nickel-hydrogen battery, which is fixed inside the bottle. The semi-circular clamp structure of the support base provides stable support for the battery cell. Please refer to... Figure 8 In this embodiment of the invention, a battery holder 23 is fixed to the bottom surface of the crossbeam 2, and the battery holder 23 has an arc-shaped limiting wall that matches the battery support 22; in this embodiment of the invention, the distance between the upper and lower crossbeams 2 is greater than the diameter of the battery cell, and the arc-shaped limiting wall on the battery holder 23 is as follows: Figure 9 and Figure 10 As shown, the crossbar is contoured to the outer wall of the battery cell, allowing it to hold the battery cell in place after installation, thus maintaining the cell's stability in the vertical and horizontal directions. In embodiments of this invention, as... Figure 8 As shown, the crossbeam 2 at the front end also has a cell fixing bracket 24, which is fixed to the battery support 22. The cell fixing bracket 24 has a through hole 24a for the battery cell to pass through. When installing the battery cell, first install the lower crossbeam 2, and then... Figure 10 As shown, the front end of the battery cell is inserted into the through hole 24a for fixation, and then pressed by the battery holder 23 on the upper crossbeam 2 to achieve stable fixation.

[0045] In an embodiment of this utility model, an energy storage cabinet is also provided, including the aforementioned cabinet connection structure, the specific structure of which is as follows: Figure 1 As shown, the rest of the cabinet is existing technology and will not be described in detail here.

[0046] In embodiments of this utility model, an energy storage device is also provided, such as... Figure 11 As shown, the energy storage cabinet mentioned above is included. In embodiments of this utility model, the energy storage cabinet is made of metal, but the internal mortise and tenon joints improve the ease of connection, the reliability of fixation, and reduce costs.

[0047] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cabinet connection structure, characterized in that, include: The cabinet body includes a frame structure, the frame structure has side walls, and the side walls have connecting seats disposed opposite to each other; A crossbeam is installed inside the cabinet body, and both ends of the crossbeam are connected to the connecting seats on the two side walls respectively. The crossbeam has tenon and mortise joints at both ends, and the tenon and mortise joints and the connecting seat form a tenon and mortise connection structure.

2. The cabinet connection structure according to claim 1, characterized in that, The mortise and tenon joint and the connecting seat are connected by a straight tenon structure.

3. The cabinet connection structure according to claim 2, characterized in that, Both the crossbeam and the connecting seat are rectangular tube structures. The width of the crossbeam is greater than the width of the connecting seat. The bottom of the mortise and tenon joint has an opening that extends to the outer end of the mortise and tenon joint. The width of the opening is configured such that the two side walls of the mortise and tenon joint are engaged with the outer wall of the connecting seat.

4. The cabinet connection structure according to claim 3, characterized in that, The tenon and mortise connector also has a first pin hole on the side wall on both sides of the opening, and the side wall of the connector has a second pin hole that matches the first pin hole. The first pin hole and the second pin hole are used to insert pins.

5. The cabinet connection structure according to claim 1, characterized in that, The mortise and tenon joint and the connecting seat are connected by a dovetail joint structure.

6. The cabinet connection structure according to claim 5, characterized in that, The side wall of the mortise and tenon joint has a first dovetail groove with an inwardly recessed design, and the connecting seat has a second dovetail groove that opens to the outer end. The mortise and tenon joint is engaged in the second dovetail groove.

7. The cabinet connection structure according to claim 5, characterized in that, The bottom of the tenon joint has a third dovetail groove that communicates with the outside. The side wall of the connector has a fourth dovetail groove that matches the third dovetail groove. The connector is engaged in the third dovetail groove.

8. The cabinet connection structure according to claim 1, characterized in that, Multiple battery support seats are fixed on the top surface of the crossbeam. The battery support seats are semi-circular clamps. A battery card holder is fixed on the bottom surface of the crossbeam. The battery card holder has an arc-shaped limiting wall that matches the battery support seat. The crossbeam at the front end also has a cell fixing bracket, which is fixed to the battery support base and has a through hole for the cell to pass through.

9. An energy storage cabinet, characterized in that, Includes the cabinet connection structure as described in any one of claims 1 to 8.

10. An energy storage device, characterized in that, Includes the energy storage cabinet as described in claim 9.

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