Gripping device, energy storage apparatus, and electric system

Abstract

A gripping device (30), an energy storage apparatus (1000), and an electric system. The gripping device (30) comprises a body (31) and a fixing part (32); the body (31) is configured to be mounted on a housing (10) of a battery device (100); the body (31) is suitable for being gripped to move the battery device (100); the fixing part (32) is connected to the body (31); the fixing part (32) is provided with a wire harness fixing structure (3); and the wire harness fixing structure (3) is used for fixing cables (20) of the battery device (100).

Description

Gripping devices, energy storage equipment and power systems

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure claims priority to the Chinese patent application filed with the China Patent Office on November 30, 2023, with application number 202323276829.8 and titled “Gripping device, energy storage device and power system,” the entire contents of which are incorporated by reference into this disclosure. Technical Field

[0003] The present disclosure relates to the technical field of battery devices, and in particular to a gripping device, an energy storage device, and an electricity system. Background Art

[0004] Home energy storage systems typically stack several battery packs, each connected to the outside world via a series of cables. As the number of battery packs in an energy storage system increases, the number of wiring harnesses required increases. The routing of these cables requires specialized attention to ensure safety and aesthetics.

[0005] In the related art, a shielding cover or a shielding gripping device is generally designed to achieve the purpose of organizing the wire harness. These technologies are generally expensive and do not solve the cable routing problem itself, but only cover the messy cables.

[0006] Summary of the Invention

[0007] The purpose of the present disclosure is to provide a gripping device, an energy storage device, and an electricity system, which can solve the problem of messy cable wiring and have a simple structure.

[0008] To achieve the purpose of this disclosure, the present disclosure provides the following technical solutions:

[0009] In a first aspect, the present disclosure provides a gripping device comprising a main body and a fixing portion, wherein the main body is used to be installed on the housing of a battery device, and the main body is suitable for gripping to move the battery device; the fixing portion is connected to the main body, and the fixing portion is provided with a wire harness fixing structure, and the wire harness fixing structure is used to fix the cables of the battery device.

[0010] In one embodiment, the main body has a first surface, and the main body has a hand-grip groove extending from the first surface toward the interior of the battery device; the fixing portion protrudes from the first surface, and the wiring harness fixing structure is arranged at the top of the fixing portion protruding from the first surface.

[0011] In one embodiment, the body is connected to a gripping ring, which is protruding from the outer surface of the battery device, and is suitable for gripping to move the battery device; a gripping space is formed between the surface of the gripping ring close to the battery device and the outer surface of the battery device, and the wiring harness fixing structure is suitable for fixing the cables passing through the gripping space.

[0012] In one embodiment, the wire harness fixing structure includes a wire groove, and the wire groove is suitable for clamping the cable of the battery device.

[0013] In one embodiment, the first surface is a plane, the wire groove has an axis, and the axis is parallel to the first surface.

[0014] In one embodiment, in a cross section perpendicular to the axis and passing through the top of the fixing portion, the inner wall contour line of the wire groove is a circular arc line, the radian of the circular arc line is α, and satisfies: π<α<3π / 2.

[0015] In one embodiment, there are multiple wire grooves, and the multiple wire grooves are spaced apart along a first direction on the fixing portion, and two adjacent wire grooves are separated by a first limit platform. The first direction is perpendicular to the axis and parallel to the first surface.

[0016] In one embodiment, the top of the first limit platform has two opposite guide surfaces, the guide surfaces are connected to the inner wall of the wire groove, and the opposite guide surfaces of two adjacent first limit platforms form a flared shape from the inside to the outside of the wire groove.

[0017] In one embodiment, the outermost wire trough among the plurality of wire troughs is provided with an avoidance groove on a side away from the middle wire trough in the first direction, and the avoidance groove and the outermost wire trough are separated by a second limiting platform.

[0018] In one embodiment, the gripping device further includes a connecting portion, which is connected to the body and is used for detachable connection with the outer shell of the battery device.

[0019] In a second aspect, the present disclosure also provides an energy storage device, which includes a plurality of battery devices and at least one gripping device as described in any one of the various embodiments of the first aspect, wherein the plurality of battery devices are arranged along a second direction perpendicular to the first direction, the plurality of battery devices are electrically connected by cables, and the gripping device is connected to the outer shell of at least one of the battery devices.

[0020] In one embodiment, the equivalent diameter of the cable trough is D1, and the equivalent diameter of the cable is D2, satisfying: 0.1 mm ≤ D1 - D2 ≤ 0.5 mm.

[0021] In a third aspect, the present disclosure further provides an electricity consumption system, which includes an electricity consumption device and an energy storage device as described in any one of the various embodiments of the second aspect, wherein the energy storage device supplies power to the electricity consumption device.

[0022] By setting a main body and a fixing part, the main body is installed on the shell of the battery device, and the wiring harness fixing structure of the fixing part is used to fix the cables of the battery device. The cables will not be entangled or move around, which can solve the problem of messy cable wiring and has a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] FIG1 is a perspective view of a battery pack according to an embodiment.

[0025] FIG. 2 is a perspective view of a gripping device according to an embodiment.

[0026] FIG. 3 is a perspective view of a gripping device according to an embodiment.

[0027] FIG. 4 is a partially enlarged view of a gripping device according to an embodiment.

[0028] FIG5 is a schematic top view of a gripping device according to another embodiment.

[0029] Description of reference numerals:

[0030] 1000-Energy storage equipment;

[0031] 100-battery device;

[0032] 10-housing, 11-long side, 12-wide side, 13-connection terminal;

[0033] 20-cable;

[0034] 30-gripping device, 3-wiring harness fixing structure, 31-body, 311-first surface, 312-handle groove, 313-handle portion, 314-protruding portion, 32-fixing portion, 33-wire groove, 34-lifting portion, 35-first limiting platform, 36-guide surface, 37-avoidance groove, 38-second limiting platform, 39-connecting portion, 391-first connecting portion, 392-second connecting portion;

[0035] 40-grip ring, 41-grip space. DETAILED DESCRIPTION

[0036] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present disclosure.

[0037] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be an intermediate component. When a component is referred to as being "connected to" another component, it may be directly connected to the other component or there may be an intermediate component.

[0038] Unless otherwise defined, all technical and scientific terms used in this disclosure have the same meanings as commonly understood by those skilled in the art to which this disclosure belongs. The terms used in this disclosure and in the specification are for the purpose of describing specific embodiments only and are not intended to limit this disclosure. The term "and / or" as used in this disclosure includes any and all combinations of one or more of the relevant listed items.

[0039] The following describes some embodiments of the present disclosure in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features therein may be combined with each other.

[0040] Referring to Figure 1 , an embodiment of the present disclosure provides a power system comprising power devices and an energy storage device 1000 according to an embodiment of the present disclosure. This power system can be a household energy storage system, an industrial power base station, or the like. This power system utilizes the energy storage device 1000 according to an embodiment of the present disclosure, which can power the power devices in the power system.

[0041] The embodiment of the present disclosure further provides an energy storage device 1000 , comprising a plurality of battery devices 100 and at least one gripping device 30 according to the embodiment of the present disclosure.

[0042] First, directions are defined: X is the length direction of the battery device 100 , Y is the width direction of the battery device 100 , and Z is the height direction of the battery device 100 .

[0043] Optionally, the battery device 100 includes a housing 10 and a cable 20, and the gripping device 30 is connected to the housing 10 of the battery device 100. The battery device 100 may be an energy storage battery device, a power battery device, etc., without limitation.

[0044] Optionally, the gripping device 30 is mounted on the housing 10 , and one end of the cable 20 is connected to the housing 10 .

[0045] Optionally, the housing 10 includes a bottom plate and a plurality of side plates, wherein the side plates are connected to the bottom plate and enclose a receiving cavity. The receiving cavity is open at one end opposite to the bottom plate, and the battery cell is received in the receiving cavity.

[0046] Optionally, the side plate of the battery device 100 includes a long surface 11 and a wide surface 12 , the long surface 11 extends along the length direction X, and the wide surface 12 extends along the width direction Y, and multiple battery devices 100 are stacked along the height direction Z.

[0047] Optionally, the gripping device 30 may be installed on the long side 11 of the battery device 100 ; or, the gripping device 30 may be installed on the wide side 12 of the battery device 100 , and the specific location is not limited.

[0048] Optionally, the shell 10 is made of a material with relatively high structural strength, specifically metal materials, high-strength plastics, ceramics, etc. Metal materials include aluminum, aluminum alloys, magnesium alloys, iron, and iron alloys. The shell 10 can be an integrated structure, that is, the bottom plate and the side plates are an integrated structure made by an integrated molding process, and the integrated molding process can be specifically stamping, casting, etc., without limitation. The shell 10 can also be a split structure, and the side plates and the bottom plate can be connected and fixed by welding, bonding, clamping, screwing, etc. The wall thickness of the shell 10 can be roughly uniform everywhere, that is, the thickness of the side plates can be roughly uniform, and the thickness of the bottom plate and the side plates can also be roughly the same.

[0049] Optionally, the battery device 100 further includes a cover plate (not shown), which is connected to the opening of the housing 10 to seal the housing cavity. The cover plate and the housing 10 can be connected by welding, bonding, clamping, screwing, etc., without limitation. The shape of the cover plate can be substantially the same as that of the base plate.

[0050] Optionally, among the multiple battery devices 100, the number of battery devices 100 connected to the gripping device 30 is not limited, as long as at least one battery device 100 is connected to the gripping device 30. For example, each battery device 100 may be connected to the gripping device 30; or, among the multiple battery devices 100, only one adjacent battery device 100 may be connected to the gripping device 30; or, among the multiple battery devices 100, only one battery device 100 may be connected to the gripping device 30. All of the above arrangements are possible and are not specifically limited.

[0051] Optionally, a connection terminal 13 is provided on the housing 10 , and one end of the cable 20 is connected to the connection terminal 13 of the battery device 100 , and the other end is connected to an electrical device.

[0052] Energy storage devices 1000 with multiple stacked battery units 100 require numerous cables 20, requiring specialized design for both safety and aesthetics. Currently, these cables 20 are typically organized by installing shielding covers, modifying the shape of the battery units 100, or employing wire tying structures, resulting in complex and costly wiring harnesses.

[0053] The present embodiment provides a gripping device 30 that combines the lifting function of conventional gripping devices with the function of organizing cables 20. By employing the gripping device 30, the energy storage device 1000 of the present embodiment solves the problem of messy cable 20 bundles when stacking multiple battery devices 100, while maintaining a simple structure.

[0054] The gripping device 30 according to the embodiment of the present disclosure is described in detail below.

[0055] Referring to FIG2 , an embodiment of the present disclosure provides a gripping device 30 comprising a body 31 and a fixing portion 32 . The body 31 is mounted on the housing 10 of the battery device 100 and is adapted to be gripped for moving the battery device 100 . The fixing portion 32 is connected to the body 31 and includes a wire harness fixing structure 3 , which is used to secure the cables 20 of the battery device 100 .

[0056] Optionally, the gripping device 30 is made of plastic, specifically PE, ABS, etc., without limitation.

[0057] Optionally, the connection between the main body 31 and the housing 10 of the battery device 100 is a detachable connection, and the specific connection method can be bonding, clamping, etc., which is not limited.

[0058] Optionally, the body 31 and the fixing portion 32 may be an integral structure, i.e., the body 31 and the fixing portion 32 may be an integral structure produced by an integral molding process, such as stamping, injection molding, etc. The body 31 and the fixing portion 32 may also be separate structures, and the body 31 and the fixing portion 32 may be connected and fixed by bonding, clamping, or other methods.

[0059] The gripping device 30 provided in the embodiment of the present disclosure is provided with a main body 31 and a fixing portion 32. The main body 31 is installed on the housing 10 of the battery device 100. The fixing portion 32 is connected to the main body 31 and is provided with a wiring harness fixing structure 3. The cables 20 of the battery device 100 are fixed in the wiring harness fixing structure 3 and will not get entangled or move with each other. This can solve the problem of messy wiring of the cables 20 and has a simple structure.

[0060] Optionally, as shown in Figures 2 and 3, the main body 31 has a first surface 311 and a hand-grip groove 312 opened from the first surface 311, the fixing portion 32 protrudes from the first surface 311, and a wiring harness fixing structure 3 is provided on the top of the fixing portion 32 protruding from the first surface 311.

[0061] 3 , the body 31 includes a handle portion 313 and a protruding portion 314, and the handle portion 313 is connected to the protruding portion 314. The handle portion 313 and the protruding portion 314 can be an integral structure or a split structure, and the handle portion 313 and the protruding portion 314 are connected and fixed by bonding, clamping, or the like.

[0062] Optionally, the protrusion 314 includes a first surface 311 away from the handle 313. When the body 31 is installed in the shell 10 of the battery device 100, the handle 313 is received in the shell 10, and the protrusion 314 protrudes from the surface of the shell 10.

[0063] Optionally, one end of the hand-grip groove 312 is open, and the opening is located on the first surface 311 , and the hand-grip groove 312 communicates with the hand-grip portion 313 and the protruding portion 314 .

[0064] Optionally, the gripping device 30 further includes a lifting portion 34 connected to the protrusion 314 of the body 31 and received in the grip groove 312. The lifting portion 34 is used to assist in moving the gripping device 30 during connection or disconnection between the gripping device 30 and the battery device 100.

[0065] Optionally, the fixing portion 32 is located at an end of the body 31 away from the lifting portion 34 .

[0066] By setting the first surface 311 and the hand-grip groove 312, the fixing portion 32 protrudes from the first surface 311, and a wiring harness fixing structure 3 is set on the top of the fixing portion 32 protruding from the first surface 311. The cables 20 of the battery device 100 are fixed in the wiring harness fixing structure 3 and will not be entangled or moved with each other, which can solve the problem of messy wiring of the cables 20 and has a simple structure.

[0067] Optionally, as shown in FIG5 , the body 31 is connected to a gripping ring 40 that protrudes from the outer surface of the battery device 100 and is suitable for gripping and moving the battery device 100. A gripping space 41 is formed between the surface of the gripping ring 40 on the side closest to the battery device 100 and the outer surface of the battery device 100. The wiring harness securing structure 3 is suitable for securing the cable 20 that passes through the gripping space 41.

[0068] Optionally, the shape formed by the outer surface of the gripping ring 40 in a direction perpendicular to the outer surface of the connected battery device 100 is not limited and may be rectangular, semicircular, trapezoidal, etc., without specific limitation.

[0069] Optionally, the grip ring 40 and the body 31 may be an integral structure, and the integral molding process may be stamping, casting, etc. The grip ring 40 and the body 31 may also be a separate structure, and the grip ring 40 and the body 31 may be connected and fixed by welding, bonding, clamping, screwing, etc., without limitation.

[0070] By setting the main body 31 to be connected with a gripping ring 40, a gripping space 41 is formed between the gripping ring 40 and the outer surface of the battery device 100 to accommodate the cable 20, which can limit the movement range of the cable 20 and facilitate the wiring harness fixing structure 3 to fix the cable 20 in the gripping space 41, thereby solving the problem of messy wiring of the cable 20 and having a simple structure.

[0071] Optionally, as shown in FIG. 2 , the wire harness fixing structure 3 includes a wire groove 33 , and the wire groove 33 is suitable for holding the cable 20 of the battery device 100 .

[0072] Optionally, the direction of the wire trough 33 may vary with the arrangement of the battery device 100. For example, when the battery devices 100 are stacked in the height direction Z and the cables 20 extend in the Z direction, the direction of the wire trough 33 is the Z direction; or, when the battery devices 100 are arranged in sequence along the length direction X, the direction of the wire trough 33 is the length direction X, and so on. No specific restrictions are imposed.

[0073] Optionally, the number of the wire slots 33 can be one or more, such as 2, 4, 6, etc., without limitation. For example, as shown in FIG2 , the gripping device 30 is provided with 8 wire slots 33 .

[0074] The wire harness securing structure 3 includes a wire groove 33, which is adapted to hold the cables 20 of the battery device 100, preventing the cables 20 from becoming tangled or moving. Furthermore, the inner wall of the wire groove 33 has a certain degree of elasticity, thereby securing the cables 20 and preventing them from being pulled out of the wire groove 33. The inner wall of the wire groove 33 has a certain degree of elasticity, which can be understood as the material of the securing portion 32 having a certain degree of elasticity, such as the aforementioned plastics such as PE and ABS.

[0075] Optionally, the first surface 311 is a plane, and the wire groove 33 has an axis, which is parallel to the first surface 311 .

[0076] Optionally, the first surface 311 is parallel to the surface of the housing 10. Exemplarily, as shown in FIG1 , the gripping device 30 is mounted on the wide surface 12 of the battery device 100, and the first surface 311 is parallel to the wide surface 12.

[0077] Optionally, the wire trough 33 is opened along the height direction Z and holds the cable 20 along the height direction Z, and the axis of the wire trough 33 extends along the height direction Z; or, the wire trough 33 is opened along the width direction Y and holds the cable 20 along the width direction Y, and the axis of the wire trough 33 extends along the width direction Y; or, the wire trough 33 is opened along the length direction X and holds the cable 20 along the length direction X, and the axis of the wire trough 33 extends along the length direction X.

[0078] Optionally, the first surface 311 is parallel to the surface of the housing 10 , and the axis of the wire slot 33 is also parallel to the surface of the housing 10 .

[0079] Optionally, the gripping device 30 is mounted on the wide surface 12 of the battery device 100 , the first surface 311 is parallel to the wide surface 12 , and the axis is parallel to the wide surface 12 .

[0080] By setting the first surface 311 as a plane, the axis of the wire trough 33 is parallel to the first surface 311 , so that the cables 20 gathered by the wire trough 33 can be arranged flatly on the first surface 311 , thereby improving the aesthetics.

[0081] Optionally, in a cross section perpendicular to the axis and passing through the top of the fixing portion 32, the inner wall contour of the cable trough 33 is a circular arc with a curvature α, satisfying the following relationship: π < α < 3π / 2. This curvature ensures that the distance between the two opposing inner walls at the opening of the cable trough 33 is less than the distance between the two opposing inner walls at the axis of the cable trough 33. Therefore, once the cable 20 is retained within the cable trough 33, it will not easily escape.

[0082] Optionally, the inner wall cross section of the wire groove 33 perpendicular to the axis and passing through the top of the fixing portion 32 is the largest among the inner wall cross sections of the wire groove 33 perpendicular to the axis, and the inner wall contour line of the wire groove 33 is also the longest.

[0083] Optionally, the value of radian α can be 5π / 4, 7π / 6, etc., without limitation.

[0084] By setting the curvature of the inner wall contour line of the wire trough 33 in the cross section perpendicular to the axis and passing through the top of the fixing portion 32, the distance between the two opposite inner wall surfaces at the opening of the wire trough 33 is limited to be smaller than the distance between the two opposite inner wall surfaces at the axis of the wire trough 33, thereby preventing the cable 20 from falling out at will and causing unstable installation.

[0085] Optionally, as shown in Figures 2 and 4, there are multiple wire grooves 33, and the multiple wire grooves 33 are spaced apart along the first direction on the fixing portion 32. Two adjacent wire grooves 33 are separated by a first limit platform 35. The first direction is perpendicular to the axis and parallel to the first surface 311.

[0086] Optionally, the gripping device 30 is installed on the wide surface 12 of the battery device 100, with the axis extending along the height direction Z, then the first direction is the width direction Y, and multiple wire grooves 33 are spaced apart on the fixing portion 32 along the width direction Y; or, the gripping device 30 is installed on the long surface 11 of the battery device 100, with the axis extending along the height direction Z, then the first direction is the length direction X, and multiple wire grooves 33 are spaced apart on the fixing portion 32 along the length direction X.

[0087] Optionally, the first limiting platform 35 is smoothly connected to the inner wall of the cable trough 33, which not only separates two adjacent cable troughs 33 but also prevents the cable 20 from being scratched when the cable 20 is clamped by the cable trough 33. The smooth connection can be achieved by processing or integrally forming a rounded corner, which is not specifically limited in this disclosure.

[0088] By providing a plurality of wire troughs 33 , with two adjacent wire troughs 33 separated by a first limiting platform 35 , the bundled cables 20 are arranged regularly, thereby improving the aesthetics.

[0089] Optionally, as shown in Figure 4, the top of the first limit platform 35 has two opposite guide surfaces 36, which are connected to the inner wall of the wire groove 33. The opposite guide surfaces 36 of two adjacent first limit platforms 35 form a flared shape from the inside to the outside of the wire groove 33.

[0090] Optionally, the guide surface 36 is smoothly connected to the inner wall of the wire groove 33 .

[0091] Optionally, the cross-section of the top of the first limit platform 35 along the width direction Y is a nearly isosceles trapezoid, the two sides of the trapezoid are two guide surfaces 36 of the first limit platform 35 facing away from each other, the short side is the side of the first limit platform 35 away from the wire groove 33, and the long side is the side where the first limit platform 35 is connected to the inner wall of the wire groove 33.

[0092] Optionally, the opposing guide surfaces 36 of two adjacent first limiting platforms 35 have a first distance at one end connected to the inner wall of the wire groove 33 and a second distance at one end away from the wire groove 33 , and the first distance is smaller than the second distance.

[0093] Optionally, the direction from the inside to the outside of the wire groove 33 refers to a direction from the body 31 toward the opening of the wire groove 33 and perpendicular to the first direction.

[0094] During the process of the cable trough 33 clamping the cable 20, the cable 20 first contacts the opposite guide surfaces 36 of the two adjacent first limit platforms 35. Under the guiding action of the guide surfaces 36, the cable 20 approaches the cable trough 33 and contacts the inner wall surface at the opening of the cable trough 33. Then, the inner wall surface of the cable trough 33 undergoes elastic deformation, and the cable 20 is clamped into the interior of the cable trough 33, completing the clamping action.

[0095] By providing two guide surfaces 36 facing each other on the top of the first limiting platform 35 , the cable 20 enters the wire groove 33 along the guide surfaces 36 , thereby preventing the cable 20 from being scratched by the wire groove 33 during the clamping process.

[0096] Optionally, a side wire trough 33 among the multiple wire troughs 33 is provided with an avoidance groove 37 on a side away from the middle wire trough 33 in the first direction, and the avoidance groove 37 and the side wire trough 33 are separated by a second limiting platform 38 .

[0097] Optionally, the avoidance groove 37 is used to accommodate the elastic deformation of the side of the wire trough 33 away from the middle during the process of clamping the cable 20, so that the process of connecting the cable 20 and the wire trough 33 is smoother, avoiding excessive squeezing of the cable 20 during clamping, and reducing the service life of the cable 20.

[0098] Optionally, the second limiting platform 38 is smoothly connected to the avoidance groove 37 and the inner wall surface of the side wire groove 33.

[0099] Optionally, the top of the second limiting platform 38 has a guide surface 36 facing the side of the wire groove 33. The direction and function of the guide surface 36 are the same as those of the aforementioned guide surface 36, which can be referred to and will not be repeated.

[0100] By setting an avoidance groove 37, the avoidance groove 37 is located on a side of a wire groove 33 near the edge among the multiple wire grooves 33, away from the side of the wire groove 33 near the middle in the first direction, and is used to accommodate the elastic deformation of the wire groove 33 away from the middle during the process of cable 20 being clamped; the avoidance groove 37 and the wire groove 33 near the edge are separated by a second limit platform 38, so that the cable 20 enters the wire groove 33 along the guide surface 36.

[0101] Optionally, the gripping device 30 further includes a connecting portion 39 , which is connected to the body 31 and is used for detachable connection with the housing 10 .

[0102] Optionally, the body 31 and the connecting portion 39 may be an integral structure, that is, the body 31 and the connecting portion 39 may be an integral structure produced by an integral molding process, which may be stamping, injection molding, etc., without limitation. The body 31 and the connecting portion 39 may also be a separate structure, and the body 31 and the connecting portion 39 may be connected and fixed by bonding, clamping, or other means.

[0103] Optionally, the connection between the connection portion 39 and the housing 10 may be by bonding, snapping, etc., which is not specifically limited.

[0104] Optionally, the connecting portion 39 includes a first connecting portion 391 and a second connecting portion 392, the first connecting portion 391 is connected to the fixing portion 32 and the main body 31, and is located on the side of the fixing portion 32 facing the main body 31; the second connecting portion 392 is connected to the protrusion 314, and is located on the side of the protrusion 314 facing the buckle portion 313.

[0105] By providing the connecting portion 39 , the connecting portion 39 is connected to the body 31 , and the gripping device 30 is detachably connected to the housing 10 through the connecting portion 39 .

[0106] In one embodiment, the equivalent diameter of the wire trough 33 is D1, and the equivalent diameter of the cable 20 is D2, satisfying: 0.1 mm ≤ D1 - D2 ≤ 0.5 mm.

[0107] Optionally, the radial cross-section of the cable 20 may be circular, elliptical, or other irregular shapes, without limitation. When the radial cross-section of the cable 20 is circular, D2 is the diameter of the cross-section circle; when the radial cross-section of the cable 20 is elliptical or other irregular shapes, D2 is the equivalent circular diameter of the radial cross-section of the cable 20, which can be measured by fitting or other means.

[0108] Optionally, in a cross section perpendicular to the axis and passing through the top of the fixing portion 32 , the inner wall contour line of the wire groove 33 is an arc line, and the equivalent diameter D1 of the wire groove 33 is the diameter of a circle coinciding with the center of the arc line.

[0109] Optionally, the difference between the equivalent diameter of the wire trough 33 and the equivalent diameter of the cable 20 may be 0.2 mm, 0.3 mm, 0.4 mm, etc., without limitation.

[0110] For example, the equivalent diameter D1 of the wire trough 33 is 6 mm, and the equivalent diameter D2 of the cable 20 is 6.2 mm.

[0111] By setting the difference between the equivalent diameter of the wire trough 33 and the equivalent diameter of the cable 20 , a reasonable gap is created between the wire trough 33 and the cable 20 , thereby preventing the cable 20 from sliding in the wire trough 33 .

[0112] The following introduces an electricity consumption system in an embodiment of the present disclosure, which is a household battery energy storage system.

[0113] Referring to Figures 1 and 2 , the energy storage device 1000 of the household battery energy storage system comprises a plurality of battery units 100 stacked in a height direction Z, and a cable 20 connecting the battery units 100 to an electrical device. The wide sides 12 of the battery units 100 are provided with connection terminals 13. One end of the cable 20 is connected to the connection terminals 13 of the battery units 100, and the other end is connected to the electrical device. Each wide side 12 of the battery units 100 is mounted with a gripping device 30 according to an embodiment of the present disclosure.

[0114] The energy storage system has eight cables 20 connected to the power consumption devices. To connect the bottommost battery unit 100, first connect one end of the cable 20 to the terminal 13. The cable 20 is then bent along the planned routing path at the lower left side of the gripping device 30. At the appropriate location, the cable 20 is inserted into the cable groove 33 of the gripping device 30. Once inserted, the cable 20 will not be easily pulled out of the groove 33 or slide axially along the groove 33, and the cable 20 will be fixed along the pre-set routing path.

[0115] When installing the remaining battery device 100, according to the aforementioned steps, the cables 20 coming out of the terminal block 13 are bent in sequence while maintaining the spacing between the wire troughs 33. This will make the cables 20 of the energy storage system neat and beautiful.

[0116] In the description of the embodiments of the present disclosure, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", and "outside" are based on the orientation or positional relationship described in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0117] The above disclosure is only a preferred embodiment of the present disclosure, and it is certainly not intended to limit the scope of the rights of the present disclosure. A person skilled in the art can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present disclosure are still within the scope of the present disclosure.

Claims

1. A gripping device, comprising: A body (31) for being mounted on a housing (10) of a battery device (100), wherein the body (31) is suitable for being grasped to move the battery device (100); A fixing portion (32) is connected to the body (31), and the fixing portion (32) is provided with a wire harness fixing structure (3), and the wire harness fixing structure (3) is used to fix the cable (20) of the battery device (100).

2. The gripping device according to claim 1, wherein: The body (31) has a first surface (311), and the body (31) is provided with a hand-grip groove (312) from the first surface (311) toward the inside of the battery device (100); the fixing portion (32) protrudes from the first surface (311), and the wiring harness fixing structure (3) is arranged on the top of the fixing portion (32) protruding from the first surface (311).

3. The gripping device according to claim 1 or 2, wherein: The body (31) is connected to a gripping ring (40), the gripping ring (40) is protruding from the outer surface of the battery device (100), and the gripping ring (40) is suitable for gripping to move the battery device (100); a gripping space (41) is formed between the surface of the gripping ring (40) on one side close to the battery device (100) and the outer surface of the battery device (100), and the wiring harness fixing structure (3) is suitable for fixing the cable (20) passing through the gripping space (41).

4. The gripping device according to claim 2, wherein: The wire harness fixing structure (3) comprises a wire groove (33), and the wire groove (33) is suitable for clamping the cable (20) of the battery device (100).

5. The gripping device according to claim 4, wherein: The first surface (311) is a plane, and the wire groove (33) has an axis, which is parallel to the first surface (311).

6. The gripping device according to claim 5, wherein: In a cross section perpendicular to the axis and passing through the top of the fixing portion (32), the inner wall contour line of the wire groove (33) is a circular arc line, the arc angle of the circular arc line is α, and the following condition is satisfied: π<α<3π / 2.

7. The gripping device according to any one of claims 4 to 6, wherein: There are a plurality of wire grooves (33), and the plurality of wire grooves (33) are arranged on the fixing portion (32) at intervals along a first direction, and two adjacent wire grooves (33) are separated by a first limiting platform (35), and the first direction is perpendicular to the axis and parallel to the first surface (311).

8. The gripping device according to claim 7, wherein: The top of the first limiting platform (35) has two guide surfaces (36) facing each other, the guide surfaces (36) are connected to the inner wall of the wire groove (33), and the opposite guide surfaces (36) of two adjacent first limiting platforms (35) form a flared shape from the inside to the outside of the wire groove (33).

9. The gripping device according to claim 7 or 8, wherein: The outermost wire groove (33) among the plurality of wire grooves (33) is provided with an avoidance groove (37) on a side away from the middle wire groove (33) in the first direction, and the avoidance groove (37) and the outermost wire groove (33) are separated by a second limiting platform (38).

10. The gripping device according to any one of claims 1 to 9, wherein: The gripping device (30) further comprises a connecting portion (39), wherein the connecting portion (39) is connected to the body (31) and is used for being detachably connected to the housing (10) of the battery device (100).

11. An energy storage device, wherein: It comprises a plurality of battery devices (100) and at least one gripping device (30) according to any one of claims 1 to 10, wherein the plurality of battery devices (100) are arranged along a second direction perpendicular to the first direction, the plurality of battery devices (100) are electrically connected via a cable (20), and the gripping device (30) is connected to a housing (10) of at least one of the battery devices (100).

12. The energy storage device according to claim 11, wherein: The equivalent diameter of the wire trough (33) is D1, and the equivalent diameter of the cable (20) is D2, satisfying: 0.1 mm ≤ D1-D2 ≤ 0.5 mm.

13. An electricity system, wherein: It comprises an electrical device and an energy storage device (1000) as claimed in claim 11 or 12, wherein the energy storage device (1000) supplies power to the electrical device.

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