Connecting mechanism and energy storage system

Abstract

The utility model discloses a connecting mechanism and an energy storage system. The connecting mechanism comprises a sleeve, a screw rod, a limiting assembly and an unlocking piece. A through hole is formed in the sleeve; the screw penetrates through the sleeve in the axial direction, the two ends of the screw extend out of the sleeve in a protruding mode, and a concave limiting groove is formed in the screw. The limiting assembly comprises a limiting block inserted into the through hole in the radial direction. The unlocking piece is movably installed between the sleeve and the screw in the axial direction. A guide structure is arranged at the end, close to the unlocking piece, of the limiting block and / or the end, close to the limiting block, of the unlocking piece, in the locking state, the limiting block penetrates through the through hole and is inserted into the limiting groove in the screw rod, and the guide structure is used for converting the movement of the unlocking piece in the axial direction towards the limiting block into the movement of the limiting block in the radial direction away from the screw rod. And the limiting block is separated from the limiting groove. The energy storage device is simple in structure, and the energy storage component can be replaced quickly and conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of energy storage systems, and specifically relates to a connecting mechanism and an energy storage system. Background Art

[0002] With the rapid development of the energy storage industry, the requirements for the post-maintenance of energy storage components are becoming increasingly higher. How to conveniently and quickly maintain and repair energy storage components is particularly important.

[0003] At present, most energy storage components are centrally installed in a dedicated energy storage box by screws. When removing and installing energy storage components, tools are needed to disassemble and install the screws. The disassembly and installation process takes a lot of time, which seriously affects the replacement efficiency of energy storage components. In addition, threaded holes or nuts that are combined with screws need to be provided in the energy storage box, which further increases the manufacturing cost of the energy storage box.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The utility model aims to provide a connection mechanism and an energy storage system. The connection mechanism has a simple structure and can quickly and conveniently replace energy storage components in an energy storage box.

[0006] In order to achieve the above purpose, the technical solution provided by a specific embodiment of the utility model is as follows:

[0007] A connecting mechanism, comprising:

[0008] A sleeve, wherein the sleeve is provided with a through hole;

[0009] A screw rod is axially inserted into the sleeve and both ends of the screw rod protrude out of the sleeve, and a concave limiting groove is provided on the screw rod;

[0010] A limiting assembly, comprising a limiting block radially inserted into the through hole;

[0011] An unlocking member is movably installed between the sleeve and the screw rod along the axial direction;

[0012] A guide structure is provided on one end of the limit block adjacent to the unlocking member and / or on one end of the unlocking member adjacent to the limit block. In a locked state, the limit block passes through the through hole and is inserted into the limit groove on the screw. The guide structure is used to convert the axial movement of the unlocking member toward the limit block into the radial movement of the limit block away from the screw, so as to separate the limit block from the limit groove.

[0013] In one or more embodiments of the present invention, the limit block includes a main body, the guide structure is located at one end of the main body adjacent to the unlocking member, and the guide structure includes a guide surface arranged toward the unlocking member.

[0014] In one or more embodiments of the present invention, the guide surface includes at least one of a plane and a curved surface.

[0015] In one or more embodiments of the present invention, the main body includes a first main body and a second main body, and the guide structure is arranged at one end of the second main body. On a plane perpendicular to the radial direction, the orthographic projection range of the first main body is partially located outside the orthographic projection range of the through hole, and the orthographic projection range of the second main body and the guide structure is located within the orthographic projection range of the through hole.

[0016] In one or more embodiments of the present invention, the radial length of the second main body is less than or equal to the wall thickness of the sleeve, and the sum of the radial length of the second main body and the radial length of the guide structure is greater than the distance between the outer wall of the sleeve and the outer wall of the screw.

[0017] In one or more embodiments of the utility model, a limit shell with a hollow interior and connected to the through hole is provided outside the sleeve, and the limit block is movably installed in the limit shell along the radial direction;

[0018] The limiting assembly also includes an elastic member, both ends of which are respectively in contact with the inner wall of the limiting shell and an end of the limiting block away from the screw rod, and the elastic member has a tendency to make the limiting block move toward the screw rod.

[0019] In one or more embodiments of the present utility model, the unlocking member includes a first cylinder disposed in the sleeve and a second cylinder connected to the first cylinder and at least partially disposed outside the sleeve, the outer walls of the first cylinder and the second cylinder have a height difference, and the wall thickness of the first cylinder is greater than the wall thickness of the second cylinder, and the sleeve is provided with a stop portion extending toward the second cylinder.

[0020] In one or more embodiments of the present invention, the distance between the inner wall of the sleeve and the outer wall of the screw is greater than or equal to the wall thickness of the first barrel, and the distance between the stopper and the outer wall of the screw is greater than or equal to the wall thickness of the second barrel and less than the wall thickness of the first barrel; and / or,

[0021] A pushing portion is provided on the outer wall of the second cylinder.

[0022] In one or more embodiments of the present invention, the screw is threadedly connected in the sleeve; and / or,

[0023] At least one end surface of the screw rod is provided with a knife edge groove, and the knife edge groove is a cross groove or a flat groove.

[0024] Another specific embodiment of the present invention provides a technical solution as follows:

[0025] An energy storage system, comprising:

[0026] Energy storage box;

[0027] A connecting piece, fixedly installed inside the energy storage box;

[0028] As in the aforementioned connecting mechanism, one end of the screw in the connecting mechanism is detachably mounted on the connecting piece;

[0029] The energy storage component is detachably mounted on the other end of the screw in the connecting mechanism.

[0030] Compared with the prior art, the utility model has the following beneficial effects:

[0031] The utility model discloses a connecting mechanism and an energy storage system. Through the design of the connecting mechanism, the energy storage component can be quickly and conveniently disassembled and assembled in the energy storage box, and the disassembly and assembly operation is convenient, saving time and effort; at the same time, the utility model can ensure the connection reliability between the energy storage component and the energy storage box, and improve the maintenance efficiency of the energy storage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 This is a schematic diagram of the exploded structure of the connecting mechanism in the first embodiment of the utility model;

[0034] Figure 2 This is a schematic diagram of the three-dimensional structure of the limit block and the guide structure in the first embodiment of the utility model;

[0035] Figure 3 This is a schematic diagram of the installation of the sleeve, the unlocking member, and the screw in the first embodiment of the present utility model;

[0036] Figure 4 It is a cross-sectional structural schematic diagram of the connecting mechanism in the first embodiment of the utility model in a locked state;

[0037] Figure 5 It is a cross-sectional structural schematic diagram of the connecting mechanism in the first embodiment of the utility model in the unlocked state;

[0038] Figure 6 It is a structural schematic diagram of the energy storage system in the second embodiment of the present utility model. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0041] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0042] The technical solution of the present utility model will be described below in conjunction with the accompanying drawings.

[0043] Embodiment 1:

[0044] Reference Figure 1 As shown, the connection mechanism in one embodiment of the utility model includes: a sleeve 1, a screw rod 2, a limit assembly 3, and an unlocking member 4.

[0045] Among them, a through hole 11 is provided on the sleeve 1; the screw 2 axially penetrates the sleeve 1 and the two ends of the screw 2 protrude outside the sleeve 1, and a recessed limit groove 21 is provided on the screw 2; the limit assembly 3 includes a limit block radially inserted in the through hole 11; the unlocking member 4 is axially movably installed between the sleeve 1 and the screw 2; a guide structure 5 is provided on the end of the limit block adjacent to the unlocking member 4. In the locked state, the limit block penetrates the through hole 11 and is inserted in the limit groove 21 on the screw 2. The guide structure 5 is used to convert the movement of the unlocking member 4 along the axial direction and toward the limit block into the movement of the limit block along the radial direction and away from the screw 2, so as to separate the limit block from the limit groove 21.

[0046] According to this design, the sleeve 1 and the screw 2 can be separated quickly and conveniently, so that when the energy storage component is installed in the energy storage box through the connection mechanism, the energy storage component can be quickly and conveniently disassembled and assembled, thereby improving the efficiency of maintaining and repairing the energy storage system. The connection mechanism in this embodiment has a simple structure and is easy to operate.

[0047] Specifically, refer to Figure 2 As shown, the limit block in this embodiment includes a main body 31, the guide structure 5 is located at one end of the main body 31 adjacent to the unlocking member 4, and the guide structure 5 includes a guide surface 51 arranged toward the unlocking member 4. The guide surface 51 can convert the movement of the unlocking member 4 along the axial direction and toward the limit block into the movement of the limit block along the radial direction and away from the screw 2.

[0048] Of course, the present application is not limited to this. In other embodiments, the guide structure can also be provided at one end of the unlocking member adjacent to the limit block, or two matching guide structures can be provided on one end of the limit block adjacent to the unlocking member and one end of the unlocking member adjacent to the limit block. The technical effect of the guide structure 5 in the above embodiment can be achieved, which can be understood and accepted by those skilled in the art, and therefore falls within the protection scope of the present utility model.

[0049] In order to facilitate the contact between the unlocking member 4 and the guide surface 51, thereby converting the movement of the unlocking member 4 along the axial direction and toward the limit block into the movement of the limit block along the radial direction and away from the screw 2, refer to Figure 2 As shown, the guide surface 51 is a plane and is tilted. Of course, the present application is not limited thereto, and the guide surface 51 can also be a curved surface, or a combination of a plane and a curved surface.

[0050] Among them, refer to Figure 2 , Figure 4 As shown, the main body 31 in this embodiment includes a first main body 311 and a second main body 312, and the guide structure 5 is arranged at one end of the second main body 312. On a plane perpendicular to the radial direction, the orthographic projection range of the first main body 311 is partially located outside the orthographic projection range of the through hole 11, and the orthographic projection range of the second main body 312 and the guide structure 5 is located within the orthographic projection range of the through hole 11. According to this design, the depth of the limit block inserted into the through hole 11 can be limited. That is, when the second main body 312 passes through the through hole 11, the first main body 311 can abut against the outer wall of the sleeve 1 to prevent the guide structure 5 from extending too far into the interior of the sleeve 1.

[0051] Furthermore, in order to enable the unlocking member 4 to abut against the guide surface 51 smoothly, so as to convert the axial movement of the unlocking member 4 toward the limit block into the radial movement of the limit block away from the screw 2 through the guide surface 51, Figure 4 As shown, in this embodiment, the radial length of the second main body 312 is less than or equal to the wall thickness of the sleeve 1, and the sum of the radial length of the second main body 312 and the radial length of the guide structure 5 is greater than the distance between the outer wall of the sleeve 1 and the outer wall of the screw 2. According to this design, a gap can be formed between the guide surface 51 and the screw 2, and the unlocking member 4 can be smoothly inserted into the gap when moving upward.

[0052] Specifically, refer to Figure 1 , Figure 4As shown, the sleeve 1 is provided with a limit shell 13 which is hollow inside and communicated with the through hole 11, and the limit block is movably installed in the limit shell 13 along the radial direction. The limit assembly 3 also includes an elastic member 32, the two ends of which are respectively in contact with the inner wall of the limit shell 13 and the end of the limit block away from the screw 2, and the elastic member 32 has a tendency to make the limit block move toward the screw 2. The elastic member 32 can be a spring, a spring sheet or the like. According to this design, the limit block can always be kept inserted in the limit groove 21, thereby ensuring that it is not affected by external forces, and the screw 2 can stably and reliably penetrate the sleeve 1.

[0053] Furthermore, in order to facilitate observation of the position of the limiting block, an observation window 131 is provided on the limiting shell 13 in this embodiment.

[0054] Reference Figure 4 , Figure 5 As shown, the connecting mechanism in this embodiment has a locked state and an unlocked state. In the locked state, the elastic member 32 provides an elastic force to the limit block to move toward the screw 2 to ensure that the limit block is inserted in the limit groove 21, and the connecting mechanism is in a locked state, that is, the axial position of the screw 2 in the sleeve 1 remains unchanged; in the unlocked state, the unlocking member 4 moves upward, and the unlocking member abuts against the guide surface 51 of the guide structure 5, thereby converting the axial movement of the unlocking member 4 toward the limit block into the radial movement of the limit block away from the screw 2, the limit block is separated from the limit groove 21, and the screw 2 can rotate freely in the sleeve 1, thereby being able to change the position of the screw 2 in the sleeve 1.

[0055] Reference Figure 4 , Figure 5 As shown, the unlocking member 4 in this embodiment includes a first cylinder 41 disposed in the sleeve 1 and a second cylinder 42 connected to the first cylinder 41 and at least partially disposed outside the sleeve 1. The outer walls of the first cylinder 41 and the second cylinder 42 have a height difference, and the wall thickness of the first cylinder 41 is greater than the wall thickness of the second cylinder 42. The sleeve 1 is provided with a stopper 12 extending toward the second cylinder 42. According to this design, the unlocking member 4 is limited in the axial direction by the stopper 12 to prevent the unlocking member 4 from being separated from the sleeve 1.

[0056] Further, in order to ensure that the unlocking member 4 slides smoothly along the axial direction in the sleeve 1, refer to Figure 4 As shown, the distance between the inner wall of the sleeve 1 and the outer wall of the screw 2 in this embodiment is greater than or equal to the wall thickness of the first barrel 41, and the distance between the stopper 12 and the outer wall of the screw 2 is greater than or equal to the wall thickness of the second barrel 42 and less than the wall thickness of the first barrel 41.

[0057] Preferably, refer to Figure 4 As shown, in this embodiment, a pushing portion 421 is provided on the outer wall of the second cylinder 42 , and force can be applied to the pushing portion 421 to push the unlocking member 4 axially, which is simple and labor-saving to operate.

[0058] The screw rod 2 in this embodiment is threadedly connected to the sleeve 1. That is, the outer wall of the screw rod 2 is provided with an external thread, and the inner wall of the sleeve 1 is provided with an internal thread matching the external thread, and the screw rod 2 and the sleeve 1 are threadedly connected through the internal thread and the external thread.

[0059] In order to facilitate the screw rod 2 to be screwed into the sleeve 1 or to separate the screw rod 2 from the sleeve 1, refer to Figure 1 As shown, at least one end surface of the screw rod 2 in this embodiment is provided with a knife edge groove 22. The knife edge groove 22 is a cross or flat opening. The screw rod 2 can be rotated by an external tool such as a screwdriver to separate the screw rod 2 from the sleeve 1.

[0060] Embodiment 2:

[0061] Reference Figure 6 As shown, this embodiment discloses an energy storage system, including: an energy storage box 6, a connector 7, a connecting mechanism 8, and an energy storage component 9. The connecting mechanism 8 is exactly the same as that in the first embodiment and will not be described again here.

[0062] Among them, the connecting piece 7 is fixedly installed inside the energy storage box 6; one end of the screw in the connecting mechanism 8 is detachably installed on the connecting piece 7; and the energy storage component 9 is detachably installed on the other end of the screw in the connecting mechanism 8.

[0063] The connection mechanism 8 in this embodiment can screw one end of the screw into the connection member 7. Since the position of the screw in the sleeve can remain unchanged through the limit block abutting against the limit groove, the screw connection reliability between the screw and the connection member 7 can also remain unchanged, so as to ensure that one end of the screw is always screwed into the connection member 7. The other end of the screw can be detachably installed with the energy storage component 9.

[0064] According to this design, the connection reliability of the energy storage component 9 installed in the energy storage box 6 can be guaranteed; and when the energy storage component 9 needs to be replaced, the energy storage component 9 can be quickly and conveniently disassembled and assembled, thereby improving the efficiency of maintaining and repairing the energy storage system, and the connection mechanism is easy to disassemble and assemble, saving time and effort.

[0065] It can be seen from the above technical solutions that the utility model has the following beneficial effects:

[0066] The utility model discloses a connecting mechanism and an energy storage system. Through the design of the connecting mechanism, the energy storage component can be quickly and conveniently disassembled and assembled in the energy storage box, and the disassembly and assembly operation is convenient, saving time and effort; at the same time, the utility model can ensure the connection reliability between the energy storage component and the energy storage box, and improve the maintenance efficiency of the energy storage system.

[0067] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0068] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A connecting mechanism, characterized in that: The connecting mechanism comprises: A sleeve, wherein the sleeve is provided with a through hole; A screw rod is axially inserted into the sleeve and both ends of the screw rod protrude out of the sleeve, and a concave limiting groove is provided on the screw rod; A limiting assembly, comprising a limiting block radially inserted into the through hole; An unlocking member is movably installed between the sleeve and the screw rod along the axial direction; A guide structure is provided on one end of the limit block adjacent to the unlocking member and / or on one end of the unlocking member adjacent to the limit block. In a locked state, the limit block passes through the through hole and is inserted into the limit groove on the screw. The guide structure is used to convert the axial movement of the unlocking member toward the limit block into the radial movement of the limit block away from the screw, so as to separate the limit block from the limit groove.

2. The connection mechanism according to claim 1, characterized in that: The limit block includes a main body, the guide structure is located at one end of the main body adjacent to the unlocking member, and the guide structure includes a guide surface arranged toward the unlocking member.

3. The connection mechanism according to claim 2, characterized in that: The guide surface includes at least one of a flat surface and a curved surface.

4. The connection mechanism according to claim 2, characterized in that: The main body portion includes a first main body portion and a second main body portion. The guide structure is arranged at one end of the second main body portion. On a plane perpendicular to the radial direction, the orthographic projection range of the first main body portion is partially located outside the orthographic projection range of the through hole, and the orthographic projection range of the second main body portion and the guide structure is located within the orthographic projection range of the through hole.

5. The connection mechanism according to claim 4, characterized in that: The radial length of the second main body is less than or equal to the wall thickness of the sleeve, and the sum of the radial length of the second main body and the radial length of the guide structure is greater than the distance between the outer wall of the sleeve and the outer wall of the screw.

6. The connection mechanism according to claim 1, characterized in that: The sleeve is provided with a limit shell which is hollow inside and communicates with the through hole, and the limit block is movably installed in the limit shell along the radial direction; The limiting assembly also includes an elastic member, both ends of which are respectively in contact with the inner wall of the limiting shell and an end of the limiting block away from the screw rod, and the elastic member has a tendency to make the limiting block move toward the screw rod.

7. The connection mechanism according to claim 1, characterized in that: The unlocking member includes a first cylinder arranged in the sleeve and a second cylinder connected to the first cylinder and at least partially arranged outside the sleeve, the outer walls of the first cylinder and the second cylinder have a height difference, and the wall thickness of the first cylinder is greater than the wall thickness of the second cylinder, and the sleeve is provided with a stop portion extending toward the second cylinder.

8. The connection mechanism according to claim 7, characterized in that: The distance between the inner wall of the sleeve and the outer wall of the screw is greater than or equal to the wall thickness of the first barrel, and the distance between the stopper and the outer wall of the screw is greater than or equal to the wall thickness of the second barrel and less than the wall thickness of the first barrel; and / or, A pushing portion is provided on the outer wall of the second cylinder.

9. The connection mechanism according to claim 1, characterized in that: The screw is threadedly connected in the sleeve; and / or, At least one end surface of the screw rod is provided with a knife edge groove, and the knife edge groove is a cross groove or a flat groove.

10. An energy storage system, characterized in that: The energy storage system comprises: Energy storage box; A connecting piece, fixedly installed inside the energy storage box; The connecting mechanism according to any one of claims 1 to 9, wherein one end of the screw in the connecting mechanism is detachably mounted to the connecting piece; The energy storage component is detachably mounted on the other end of the screw in the connecting mechanism.

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