Combined energy storage power supply end plate

Abstract

The utility model discloses a combined energy storage power supply end plate which comprises a plastic end plate body, the plastic end plate body comprises a middle body, a first body, a second body, a third body and a fourth body, and the first body and the second body are respectively connected with two opposite sides of the middle body along the length direction in a mortise and tenon mode. The third body and the fourth body are in mortise and tenon connection with the two opposite sides of the middle body in the width direction respectively, the two ends of the first body are movably connected with a first connector and a second connector, the first connector is in mortise and tenon connection with one end of the third body, and the second connector is in mortise and tenon connection with one end of the fourth body. The two ends of the second body are movably connected with a third connector and a fourth connector, the third connector is in mortise and tenon connection with the other end of the third body, and the fourth connector is in mortise and tenon connection with the other end of the fourth body. According to the combined energy storage power supply end plate, the problem that an existing plastic end plate is insufficient in strength is solved, and the extrusion strength requirement of a battery module on the end plate can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to energy storage plastic part technical field, concretely relates to a combined energy storage power supply end plate. BACKGROUND

[0002] The energy storage device generally includes a plurality of battery modules, a heat dissipation member and a box body, the box body includes a receiving cavity, and the plurality of battery modules and the heat dissipation member are located in the receiving cavity of the box body. The battery module is the core component of the energy storage device, usually includes a shell body, an end plate and a plurality of battery monomers, and the shell body and the end plate are assembled in cooperation to combine the plurality of battery monomers together. The material of the traditional energy storage battery end plate is usually an integrally formed plastic part. However, the end plate made of plastic material has the defects of low strength and weak anti-deformation ability. During the use of the battery module, the battery monomers apply expansion force to the end plate under heat, which easily causes the end plate to expand and deform with the cyclic charging and discharging module. Moreover, the structure of the current plastic end plate is prone to burst, which makes the overall structural stability of the battery module poor, thereby affecting the normal use of the battery module. SUMMARY

[0003] The utility model aims at providing a combined energy storage power supply end plate, which improves the problem of insufficient strength of the current plastic end plate and can meet the extrusion strength requirement of the battery module on the end plate.

[0004] In order to achieve the above purpose, the solution of the utility model is as follows:

[0005] A combined energy storage power supply end plate, comprising a plastic end plate body, the plastic end plate body includes an intermediate body and a first body, a second body, a third body and a fourth body which are detachably connected with the intermediate body, the first body, the second body, the third body and the fourth body combine to form a frame of the intermediate body, the intermediate body is rectangular, the first body and the second body are columnar, the third body and the fourth body are plate-shaped, the first body is connected with the intermediate body along one side of the length direction by mortise and tenon joint, the second body is connected with the intermediate body along the other side of the length direction by mortise and tenon joint, the third body is connected with the intermediate body along one side of the width direction by mortise and tenon joint, the fourth body is connected with the intermediate body along the other side of the width direction by mortise and tenon joint, one end of the first body is movably connected with a first connecting body, the other end of the first body is movably connected with a second connecting body, the first connecting body is connected with one end of the third body by mortise and tenon joint, the second connecting body is connected with one end of the fourth body by mortise and tenon joint, one end of the second body is movably connected with a third connecting body, the other end of the second body is movably connected with a fourth connecting body, the third connecting body is connected with the other end of the third body by mortise and tenon joint, and the fourth connecting body is connected with the other end of the fourth body by mortise and tenon joint.

[0006] The side of the intermediate body connected with the first body is a first pressing surface, the first body has a first surface, a second surface and a sector surface along the length direction thereof, the first surface and the second surface of the first body are connected with each other and arranged at an angle, the sector surface of the first body is connected between the first surface and the second surface, the first surface of the first body is provided with a first strip-shaped protrusion along the length direction thereof, and the first pressing surface is provided with a first groove in sliding fit with the first strip-shaped protrusion.

[0007] The side of the intermediate body connected with the second body is a second pressing surface, the second body has a first surface, a second surface and a sector surface along the length direction thereof, the first surface and the second surface of the second body are connected with each other and arranged at an angle, the sector surface of the second body is connected between the first surface and the second surface, the first surface of the second body is provided with a second strip-shaped protrusion along the length direction thereof, and the second pressing surface is provided with a second groove in sliding fit with the second strip-shaped protrusion.

[0008] The side of the intermediate body connected with the third body is a third pressing surface, the third body has a first surface and a second surface perpendicular to each other along the length direction thereof, the first surface of the third body is provided with a third strip-shaped protrusion along the length direction thereof, and the third pressing surface is provided with a third groove in sliding fit with the third strip-shaped protrusion.

[0009] The side of the intermediate body connected with the fourth body is a fourth pressing surface, the fourth body has a first surface and a second surface perpendicular to each other along the length direction thereof, the first surface of the fourth body is provided with a fourth strip-shaped protrusion along the length direction thereof, and the fourth pressing surface is provided with a fourth groove in sliding fit with the fourth strip-shaped protrusion.

[0010] The first body and the second body are identical in shape, and the first connecting body, the second connecting body, the third connecting body and the fourth connecting body are block structures.

[0011] The first connector has a first face, a second face and a through face along its length direction, the first face and the second face of the first connector are connected to each other and arranged at an angle, the through face of the first connector is connected between the first face and the second face, the through face of the first connector abuts against the corresponding end face of the first body, the first through hole is formed in the through face of the first connector, the fifth groove is formed in the first face of the first connector along its width direction, the fifth bar-shaped protrusion is arranged on the end face of the third body corresponding to the first face of the first connector and slidably matched with the fifth groove, the first protrusion extends downward from the position corresponding to the first face of the first connector, the gap is formed between the first body and the third body and clamped with the first protrusion, the second connector has a first face, a second face and a through face along its length direction, the first face and the second face of the second connector are connected to each other and arranged at an angle, the through face of the second connector is connected between the first face and the second face, the through face of the second connector abuts against the corresponding end face of the first body, the second through hole is formed in the through face of the second connector, the sixth groove is formed in the first face of the second connector along its width direction, the sixth bar-shaped protrusion is arranged on the end face of the fourth body corresponding to the first face of the second connector and slidably matched with the sixth groove, the second protrusion extends upward from the position corresponding to the first face of the second connector, the gap is formed between the first body and the fourth body and clamped with the second protrusion, the first through hole is formed in the first body along its length direction, the two ends of the first through hole are communicated with the first through hole and the second through hole respectively, and the first embedded groove is formed in the sector face of the first body and clamped with the nut in the first through hole.

[0012] The third connector has a first face, a second face and a through face along its length direction, the first face and the second face of the third connector are connected to each other and arranged at an angle, the through face of the third connector is connected between the first face and the second face, the through face of the third connector abuts against the corresponding end face of the second body, the third connector has a third through hole on the through face, the third connector has a seventh groove on the first face along its width direction, the third body has a seventh bar-shaped protrusion on the end face corresponding to the seventh groove, the third connector has a third protrusion extending downward corresponding to the position of the first face, the second body and the third body form a gap for clamping the third protrusion, the fourth connector has a first face, a second face and a through face along its length direction, the first face and the second face of the fourth connector are connected to each other and arranged at an angle, the through face of the fourth connector is connected between the first face and the second face, the through face of the fourth connector abuts against the corresponding end face of the second body, the fourth connector has a fourth through hole on the through face, the fourth connector has an eighth groove on the first face along its width direction, the fourth body has an eighth bar-shaped protrusion on the end face corresponding to the eighth groove, the fourth connector has a fourth protrusion extending upward corresponding to the position of the first face, the second body and the fourth body form a gap for clamping the fourth protrusion, the second body has a second through hole along its length direction, the two ends of the second through hole communicate with the third through hole and the fourth through hole respectively, the second body has a second embedded groove on the sector face for clamping the nut in the second through hole.

[0013] The intermediate body has opposite shell faces and assembly faces, the assembly faces are provided with multiple annular reinforcing ribs distributed inside and outside, multiple linear reinforcing ribs are connected between the annular reinforcing ribs of each circle, the multiple linear reinforcing ribs are distributed around the center of the intermediate body, the connection between the annular reinforcing rib and the linear reinforcing rib is provided with a reinforcing column, the two side faces of the annular reinforcing rib are gradually inclined away from the inside to the outside, and the two side faces of the linear reinforcing rib are also gradually inclined away from the inside to the outside.

[0014] With the above structure, the utility model discloses a combined energy storage power supply end plate, including plastic end plate body, the plastic end plate body includes the intermediate body and with the first body, the second body, the third body and the fourth body of detachable connection of intermediate body, one, when the intermediate body is subjected to load effect, the intermediate body can be passed load to the first body, the second body, the third body and the fourth body, and the end plate that the intermediate body, the first body, the second body, the third body and the fourth body jointly constitute can jointly bear load, improve the strength of end plate whole, on the other hand, the intermediate body is connected with the first body, the second body, the third body and the fourth body through the mortise and tenon joint respectively, when the intermediate body is subjected to external load effect and leads to damaged, can directly replace new intermediate body, need not replace the whole end plate, save the cost of subsequent maintenance.

[0015] Further, the intermediate body has opposite shell faces and assembly faces, the assembly faces are provided with a plurality of annular reinforcing ribs distributed inside and outside, a plurality of linear reinforcing ribs are connected between each of the annular reinforcing ribs, the plurality of linear reinforcing ribs are distributed around the center of the intermediate body, and a reinforcing column is arranged at the connection between the annular reinforcing rib and the linear reinforcing rib. By arranging the annular reinforcing rib, the linear reinforcing rib and the reinforcing column, the structural strength of the end plate is ensured while the lightweight design of the end plate is realized.

[0016] Further, the two side faces of the annular reinforcing rib are gradually inclined away from the inside to the outside, and the two side faces of the linear reinforcing rib are also gradually inclined away from the inside to the outside, so that the included angle between the annular reinforcing rib and the assembly face and the included angle between the linear reinforcing rib and the assembly face are obtuse angles, facilitating demolding. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a structural schematic view of the utility model discloses a combined energy storage power supply end plate.

[0018] Fig. 2 It is an exploded structural schematic view of the utility model discloses a combined energy storage power supply end plate.

[0019] Fig. 3 It is a structural schematic view of the intermediate body in the utility model.

[0020] In the drawing:

[0021] Intermediate body 1;First recess 11;

[0022] Third recess 12;Third recess 13;

[0023] Annular reinforcing rib 14;Linear reinforcing rib 15;

[0024] Reinforcing column 16;First body 2;

[0025] Sector surface 21; first strip-shaped protrusion 22;

[0026] First through hole 23; second body 3;

[0027] First surface 31; sector surface 32;

[0028] Second strip-shaped protrusion 33; second through hole 34;

[0029] Third body 4; first surface 41;

[0030] Second surface 42; third strip-shaped protrusion 43;

[0031] Fifth strip-shaped protrusion 44; fourth body 5;

[0032] First surface 51; fourth strip-shaped protrusion 52;

[0033] Sixth strip-shaped protrusion 53; first connecting body 6;

[0034] First surface 61; first protrusion 611

[0035] Second surface 62; through surface 63;

[0036] Second connecting body 7; first surface 71;

[0037] Second protrusion 711; second surface 72;

[0038] Through surface 73; third connecting body 8;

[0039] First surface 81; seventh groove 811;

[0040] Third protrusion 812 second surface 82;

[0041] Through surface 83; third through hole 831;

[0042] Fourth connecting body 9; first surface 91;

[0043] Eighth groove 911; fourth protrusion 912;

[0044] Second surface 92; through surface 93;

[0045] Fourth through hole 931. DETAILED DESCRIPTION

[0046] In order to further explain the technical scheme of the utility model, the utility model will be described in detail below through specific embodiments.

[0047] A combined energy storage power supply end plate, such as Figs. 1-3As shown, the plastic end plate body includes an intermediate body 1 and a first body 2, a second body 3, a third body 4 and a fourth body 5 which are detachably connected to the intermediate body 1, and the first body 2, the second body 3, the third body 4 and the fourth body 5 combine to form a frame of the intermediate body 1.

[0048] The intermediate body 1 is rectangular, the first body 2 and the second body 3 are columnar, the first body 2 and the second body 3 are the same shape, the third body 3 and the fourth body 4 are plate-shaped, the first body 2 is connected to one side of the intermediate body 1 along the length direction in a mortise and tenon joint, the second body 3 is connected to the other side of the intermediate body 1 along the length direction in a mortise and tenon joint, specifically, the side of the intermediate body 1 connected to the first body 2 is a first pressing surface, the first body 2 has a first surface, a second surface and a sector surface 21 along the length direction thereof, the first surface and the second surface of the first body 2 are connected to each other and arranged at an angle, and the sector surface 21 of the first body 2 is connected between the first surface and the second surface, so that the first body 2 is columnar, a first strip-shaped protrusion 22 is arranged on the first surface of the first body 2 along the length direction thereof, and a first groove 11 is formed on the first pressing surface and slidably matched with the first strip-shaped protrusion 22. Preferably, the first strip-shaped protrusion 22 is a dovetail-shaped protrusion, and the shape and size of the first groove 11 are matched with the shape and size of the first strip-shaped protrusion 22 respectively.

[0049] Specifically, the side of the intermediate body 1 connected to the second body 3 is a second pressing surface, the second body 3 has a first surface 31, a second surface and a sector surface 32 along the length direction thereof, the first surface 31 and the second surface of the second body 3 are connected to each other and arranged at an angle, and the sector surface 32 of the second body 3 is connected between the first surface 31 and the second surface, so that the second body 3 is columnar, a second strip-shaped protrusion 33 is arranged on the first surface 32 of the second body 3 along the length direction thereof, and a second groove is formed on the second pressing surface and slidably matched with the second strip-shaped protrusion 33. Preferably, the second strip-shaped protrusion 33 is a dovetail-shaped protrusion, and the shape and size of the second groove are matched with the shape and size of the second strip-shaped protrusion 33 respectively.

[0050] The third body 4 is connected to one side of the intermediate body 1 along the width direction in a mortise and tenon joint, and the fourth body 5 is connected to the other side of the intermediate body 1 along the width direction in a mortise and tenon joint, specifically, the side of the intermediate body 1 connected to the third body 4 is a third pressing surface, the third body 4 has a first surface 41 and a second surface 42 perpendicular to each other along the length direction thereof, and a reinforcing rib is arranged between the first surface 41 and the second surface 42, a third strip-shaped protrusion 43 is arranged on the first surface 41 of the third body 4 along the length direction thereof, and a third groove 12 is formed on the third pressing surface and slidably matched with the third strip-shaped protrusion 43. Preferably, the third strip-shaped protrusion 43 is a dovetail-shaped protrusion, and the shape and size of the third groove 12 are matched with the shape and size of the third strip-shaped protrusion 43 respectively.

[0051] Specifically, the side surface of the intermediate body 1 connected with the fourth body 5 is a fourth pressing surface, the fourth body 5 has a first surface 51 and a second surface perpendicular to each other along the length direction of the fourth body 5, and a reinforcing rib is arranged between the first surface 51 and the second surface, the first surface 51 of the fourth body 5 is provided with a fourth strip-shaped protrusion 52 along the length direction of the fourth body 5, and the fourth pressing surface is provided with a fourth groove 13 in sliding fit with the fourth strip-shaped protrusion 52. Preferably, the fourth strip-shaped protrusion 52 is a dovetail-shaped protrusion, and the fourth groove 13 is shaped and sized to be matched with the fourth strip-shaped protrusion 52.

[0052] Thus, the intermediate body 1 is connected with the first body 2, the second body 3, the third body 4 and the fourth body 5 into an integrated body through the same mortise and tenon connection structure.

[0053] The first body 2 is movably connected with a first connecting body 6 at one end close to the third body 4, and movably connected with a second connecting body 7 at one end close to the fourth body 5, the first connecting body 6 is mortise and tenon connected with one end of the third body 4, and the second connecting body 7 is mortise and tenon connected with one end of the fourth body 5, the second body 3 is movably connected with a third connecting body 8 at one end close to the third body 4, and movably connected with a fourth connecting body 9 at one end close to the fourth body 5, the third connecting body 8 is mortise and tenon connected with the other end of the third body 4, and the fourth connecting body 9 is mortise and tenon connected with the other end of the fourth body 5. The first connecting body 6, the second connecting body 7, the third connecting body 8 and the fourth connecting body 9 are block structures.

[0054] Specifically, the first connecting body 6 has a first surface 61, a second surface 62 and a through surface 63 along the length direction of the first connecting body 6, the first surface 61 and the second surface 62 of the first connecting body 6 are connected with each other and arranged at an angle, and the through surface 63 of the first connecting body 6 is connected between the first surface 61 and the second surface 62, the through surface 63 of the first connecting body 6 is in abutment with the corresponding end surface of the first body 2, the through surface 63 of the first connecting body 6 is provided with a first through hole, and the through surface 63 of the first connecting body 6 forms a gap for embedding the head end of a bolt between the first surface 61 and the second surface 62.

[0055] The first surface 61 of the first connecting body 6 is provided with a fifth groove along the width direction of the first surface 61, and the end surface of the third body 4 corresponding to the first connecting body 6 is provided with a fifth strip-shaped protrusion 44 in sliding fit with the fifth groove, preferably, the fifth strip-shaped protrusion 44 is a dovetail-shaped protrusion, and the fifth groove is shaped and sized to be matched with the fifth strip-shaped protrusion 44. The first connecting body 6 extends downward at a position corresponding to the first surface 61 to form a first protrusion 611, and a gap is formed between the first body 2 and the third body 3 for clamping the first protrusion 611.

[0056] The second connecting body 7 has a first face 71, a second face 72 and a through face 73 along its length direction, the first face 71 and the second face 72 of the second connecting body 7 are connected to each other and arranged at an angle, the through face 73 of the second connecting body 7 is connected between the first face 71 and the second face 72, the through face 73 of the second connecting body 7 abuts against the corresponding end face of the first body 2, the through face 73 of the second connecting body 7 is provided with a second through hole, and the through face 73 of the second connecting body 7 is also formed with a gap for embedding the head end of the bolt between the first face 71 and the second face 72.

[0057] The first face 71 of the second connecting body 7 is provided with a sixth groove along its width direction, the fourth body 5 is provided with a sixth bar-shaped protrusion 53 corresponding to the end face of the second connecting body 7 and slidingly matched with the sixth groove, preferably, the sixth bar-shaped protrusion 53 is a dovetail-shaped protrusion, and the shape and size of the sixth groove are matched with the shape and size of the sixth bar-shaped protrusion 53 respectively. The second connecting body 7 extends upwardly at a position corresponding to the first face 71 and has a second protrusion 711, and the first body 2 and the fourth body 5 are formed with a gap for clamping the second protrusion 711.

[0058] The first body 2 is provided with a first through hole 23 along its length direction, and the two ends of the first through hole 23 are respectively communicated with the first through hole and the second through hole. The fan-shaped face 21 of the first body 2 is provided with a first embedding groove for clamping a nut in the first through hole 23.

[0059] The first body 2 and the third body 4 are connected by the first connecting body 6, specifically, the fifth groove of the first connecting body 6 is slidingly matched and connected with the fifth bar-shaped protrusion 44 of the third body 4, and the first protrusion 611 of the first connecting body 6 is clamped in the gap between the first body 2 and the third body 4, and the first body 2 and the fourth body 5 are connected by the second connecting body 7, which has the same connection mode as the first connecting body 6, which will not be described here again. Finally, the bolt is inserted into the first through hole, the first through hole 23 and the second through hole in sequence (of course, it can also be inserted into the second through hole, the first through hole 23 and the first through hole in sequence), and is fixed with the bottom of the battery box body, so that the first body 2, the first connecting body 6 and the third body 4, and the first body 2, the second connecting body 7 and the fourth body 5 are firmly connected.

[0060] The third connecting body 8 has a first face 81, a second face 82 and a through face 83 along the length direction of the third connecting body 8, the first face 81 and the second face 82 of the third connecting body 8 are connected to each other and arranged at an angle, the through face 83 of the third connecting body 8 is connected between the first face 81 and the second face 82, the through face 83 of the third connecting body 8 abuts against the corresponding end face of the second body 3, the through face 83 of the third connecting body 8 is provided with a third through hole 831, and the through face 83 of the third connecting body 8 is also formed with a gap for embedding the head end of the bolt between the first face 81 and the second face 82.

[0061] The first face 81 of the third connecting body 8 is provided with a seventh groove 811 along the width direction of the first face 81, the seventh groove 811 is slidably matched with a seventh bar-shaped protrusion arranged on the end face of the third body 4 corresponding to the third connecting body 8, preferably, the seventh bar-shaped protrusion is a dovetail-shaped protrusion, and the shape and size of the seventh groove 811 are matched with the shape and size of the seventh bar-shaped protrusion respectively. The third connecting body 8 extends downward at a position corresponding to the first face 81 and has a third protrusion 812, and the second body 3 and the third body 4 are formed with a gap for clamping the third protrusion 812.

[0062] The fourth connecting body 9 has a first face 91, a second face 92 and a through face 93 along the length direction of the fourth connecting body 9, the first face 91 and the second face 92 of the fourth connecting body 9 are connected to each other and arranged at an angle, the through face 93 of the fourth connecting body 9 is connected between the first face 91 and the second face 92, the through face 93 of the fourth connecting body 9 abuts against the corresponding end face of the second body 3, the through face 93 of the fourth connecting body 9 is provided with a fourth through hole 931, and the through face 93 of the fourth connecting body 9 is also formed with a gap for embedding the head end of the bolt between the first face 91 and the second face 92.

[0063] The first face 91 of the fourth connecting body 9 is provided with an eighth groove 911 along the width direction of the first face 91, the eighth groove 911 is slidably matched with an eighth bar-shaped protrusion arranged on the end face of the fourth body 5 corresponding to the fourth connecting body 9, preferably, the eighth bar-shaped protrusion is a dovetail-shaped protrusion, and the shape and size of the eighth groove 911 are matched with the shape and size of the eighth bar-shaped protrusion respectively. The fourth connecting body 9 extends upward at a position corresponding to the first face 91 and has a fourth protrusion 912, and the second body 3 and the fourth body 5 are formed with a gap for clamping the fourth protrusion 912.

[0064] The second body 3 is provided with a second through hole 34 along the length direction of the second body 3, the two ends of the second through hole 34 are respectively communicated with the third through hole 831 and the fourth through hole 931, and the fan-shaped face 32 of the second body 3 is provided with a second embedding groove for clamping the nut in the second through hole 34.

[0065] The second body 3 and the third body 4 are connected through the third connecting body 8, specifically, the seventh groove 811 of the third connecting body 8 is connected with the seventh bar-shaped protrusion of the third body 4 in a sliding fit, and the third protrusion 812 of the third connecting body 8 is clamped in the gap between the second body 3 and the third body 4, the second body 3 and the fourth body 5 are connected through the fourth connecting body 9, and the connection manner is the same as that of the third connecting body 8, which will not be described here again, finally, the bolt is inserted into the third through hole 831, the second through hole 34 and the fourth through hole 931 in sequence (of course, it can also be inserted into the fourth through hole 931, the second through hole 34 and the third through hole 831 in sequence), and is fixed with the bottom of the battery box body, so that the second body 3, the third connecting body 8 and the third body 4, and the second body 3, the fourth connecting body 9 and the fourth body 5 are firmly connected.

[0066] Through the above connection mode, the intermediate body 1 is firmly connected with the first body 2, the second body 3, the third body 4 and the fourth body 5 around it, and is combined to form an integral end plate, on the one hand, when the intermediate body 1 is subjected to load, the intermediate body 1 can transmit the load to the first body 2, the second body 3, the third body 4 and the fourth body 5, and the end plate composed of the intermediate body 1, the first body 2, the second body 3, the third body 4 and the fourth body 5 can jointly bear the load, thereby improving the overall strength of the end plate; on the other hand, the intermediate body 1 is connected with the first body 2, the second body 3, the third body 4 and the fourth body 5 through mortise and tenon connection, when the intermediate body 1 is damaged due to external load, the new intermediate body 1 can be directly replaced, without the need to replace the entire end plate, thereby saving the cost of subsequent maintenance.

[0067] Further, the intermediate body 1 has opposite shell surfaces and assembly surfaces, a plurality of annular reinforcing ribs 14 are arranged on the assembly surfaces, a plurality of linear reinforcing ribs 15 are connected between the annular reinforcing ribs 14, the linear reinforcing ribs 15 are distributed around the center of the intermediate body 1, and reinforcing columns 16 are arranged at the connection positions of the annular reinforcing ribs 14 and the linear reinforcing ribs 15. Through the arrangement of the annular reinforcing ribs 14, the linear reinforcing ribs 15 and the reinforcing columns 16, the lightweight design of the end plate is realized while the structural strength of the end plate is ensured.

[0068] Further, the two side surfaces of the annular reinforcing rib 14 are arranged to be gradually away from the center from the outside to the inside, and the two side surfaces of the linear reinforcing rib 15 are also arranged to be gradually away from the center from the outside to the inside, so that the included angle between the annular reinforcing rib 14 and the assembly surface and the included angle between the linear reinforcing rib 15 and the assembly surface are obtuse, and the intermediate body 1 is convenient to demold after injection molding.

[0069] The terms "first", "second", "third", "fourth" and the like in the description and claims of the present utility model and the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0070] The above-mentioned embodiments and drawings are not limited to the product form and style of the present utility model, and any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent category of the present utility model.

Claims

1. A combined energy storage power supply end plate comprising a plastic end plate body, characterized in that: The plastic end plate body comprises a middle body and a first body, a second body, a third body and a fourth body detachably connected with the middle body, the first body, the second body, the third body and the fourth body combine to form a frame of the middle body, the middle body is rectangular, the first body and the second body are columnar, the third body and the fourth body are plate-shaped, the first body is connected with the middle body along one side of the length direction by mortise and tenon connection, the second body is connected with the middle body along the other side of the length direction by mortise and tenon connection, the third body is connected with the middle body along one side of the width direction by mortise and tenon connection, the fourth body is connected with the middle body along the other side of the width direction by mortise and tenon connection, one end of the first body is movably connected with a first connector, the other end of the first body is movably connected with a second connector, the first connector is connected with one end of the third body by mortise and tenon connection, the second connector is connected with one end of the fourth body by mortise and tenon connection, one end of the second body is movably connected with a third connector, the other end of the second body is movably connected with a fourth connector, the third connector is connected with the other end of the third body by mortise and tenon connection, and the fourth connector is connected with the other end of the fourth body by mortise and tenon connection.

2. The end plate of claim 1, wherein: The side surface of the middle body connected with the first body is a first pressing surface, the first body has a first surface, a second surface and a fan-shaped surface along the length direction thereof, the first surface and the second surface of the first body are connected with each other and arranged at an angle, the fan-shaped surface of the first body is connected between the first surface and the second surface, the first surface of the first body is provided with a first strip-shaped protrusion along the length direction thereof, and the first pressing surface is provided with a first groove in sliding fit with the first strip-shaped protrusion.

3. The end plate of claim 1, wherein: The side surface of the middle body connected with the second body is a second pressing surface, the second body has a first surface, a second surface and a fan-shaped surface along the length direction thereof, the first surface and the second surface of the second body are connected with each other and arranged at an angle, the fan-shaped surface of the second body is connected between the first surface and the second surface, the first surface of the second body is provided with a second strip-shaped protrusion along the length direction thereof, and the second pressing surface is provided with a second groove in sliding fit with the second strip-shaped protrusion.

4. The end plate of claim 1, wherein: The side surface of the middle body connected with the third body is a third pressing surface, the third body has a first surface and a second surface perpendicular to each other along the length direction thereof, the first surface of the third body is provided with a third strip-shaped protrusion along the length direction thereof, and the third pressing surface is provided with a third groove in sliding fit with the third strip-shaped protrusion.

5. The end plate of claim 1, wherein: The side surface of the middle body connected with the fourth body is a fourth pressing surface, the fourth body has a first surface and a second surface perpendicular to each other along the length direction thereof, the first surface of the fourth body is provided with a fourth strip-shaped protrusion along the length direction thereof, and the fourth pressing surface is provided with a fourth groove in sliding fit with the fourth strip-shaped protrusion.

6. The end plate of claim 1, wherein: The first body and the second body are of the same shape, and the first connector, the second connector, the third connector and the fourth connector are block structures.

7. The end plate of claim 1, wherein: The first connector has a first face, a second face and a through face along its length direction, the first face and the second face of the first connector are connected to each other and arranged at an angle, the through face of the first connector is connected between the first face and the second face, the through face of the first connector abuts against the corresponding end face of the first body, the through face of the first connector is provided with a first through hole, the first face of the first connector is provided with a fifth groove along its width direction, the third body is provided with a fifth bar-shaped protrusion corresponding to the end face of the first connector and slidingly matched with the fifth groove, the first connector is provided with a first protruding block downwardly extended corresponding to the position of the first face, a gap is formed between the first body and the third body and clamped with the first protruding block, the second connector has a first face, a second face and a through face along its length direction, the first face and the second face of the second connector are connected to each other and arranged at an angle, the through face of the second connector is connected between the first face and the second face, the through face of the second connector abuts against the corresponding end face of the first body, the through face of the second connector is provided with a second through hole, the first face of the second connector is provided with a sixth groove along its width direction, the fourth body is provided with a sixth bar-shaped protrusion corresponding to the end face of the second connector and slidingly matched with the sixth groove, the second connector is provided with a second protruding block upwardly extended corresponding to the position of the first face, a gap is formed between the first body and the fourth body and clamped with the second protruding block, the first body is provided with a first through hole along its length direction, two ends of the first through hole are respectively communicated with the first through hole and the second through hole, and the first body is provided with a first embedded groove on the sector face for clamping a nut in the first through hole.

8. The modular energy storage power supply end plate of claim 1, wherein: The third connector has a first face, a second face and a through face along its length direction, the first face and the second face of the third connector are connected to each other and arranged at an angle, the through face of the third connector is connected between the first face and the second face, the through face of the third connector abuts against the corresponding end face of the second body, the third connector has a third through hole on the through face, the third connector has a seventh groove on the first face along its width direction, the third body has a seventh bar-shaped protrusion on the end face corresponding to the seventh groove, the third connector has a third protrusion extending downward corresponding to the position of the first face, the second body and the third body form a gap for clamping the third protrusion, the fourth connector has a first face, a second face and a through face along its length direction, the first face and the second face of the fourth connector are connected to each other and arranged at an angle, the through face of the fourth connector is connected between the first face and the second face, the through face of the fourth connector abuts against the corresponding end face of the second body, the fourth connector has a fourth through hole on the through face, the fourth connector has an eighth groove on the first face along its width direction, the fourth body has an eighth bar-shaped protrusion on the end face corresponding to the eighth groove, the fourth connector has a fourth protrusion extending upward corresponding to the position of the first face, the second body and the fourth body form a gap for clamping the fourth protrusion, the second body has a second through hole along its length direction, the two ends of the second through hole communicate with the third through hole and the fourth through hole respectively, the second body has a second embedded groove on the fan face for clamping the nut in the second through hole.

9. The modular energy storage power supply end plate of claim 1, wherein: The intermediate body has opposite shell faces and assembly faces, the assembly faces are provided with a plurality of annular reinforcing ribs distributed inside and outside, a plurality of linear reinforcing ribs are connected between the annular reinforcing ribs of each circle, the linear reinforcing ribs are distributed around the center of the intermediate body, the connection between the annular reinforcing ribs and the linear reinforcing ribs is provided with a reinforcing column, the two side faces of the annular reinforcing rib are gradually inclined away from the inside to the outside, and the two side faces of the linear reinforcing rib are also gradually inclined away from the inside to the outside.

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