Stacked energy storage power supply

Abstract

The utility model provides a stacked energy storage power supply, which comprises a plurality of energy storage units which are stacked in sequence, two adjacent energy storage units are inserted, matched and positioned through a positioning structure, a decorative part is arranged between two adjacent energy storage units, and the decorative part is abutted between the outer peripheries of two adjacent energy storage units and shields the positioning structure. The positioning structure can be shielded through the decorating part, and the positioning structure is prevented from being exposed. Meanwhile, the decorating part is abutted between the outer peripheries of the two adjacent energy storage units, so that no gap is formed at the joint of the two adjacent energy storage units when seen from the surface, and the surface is flat and attractive.

Description

Technical Field

[0001] The present application belongs to the technical field of energy storage power supplies, and more specifically, to a stacked energy storage power supply. Background Art

[0002] With the continuous development of battery technology, energy storage batteries are becoming more and more widely used in life, mainly for emergency treatment and meeting outdoor power needs. In traditional technology, energy storage power supplies are large in size and heavy in weight, which is inconvenient to store and carry. Therefore, a variety of stacked energy storage power supplies have appeared on the market, which are composed of multiple energy storage units stacked and connected.

[0003] Among them, since adjacent energy storage units need to be positioned by means of a concave-convex positioning structure, and in order to facilitate heat dissipation, the energy storage units need to be spaced apart, which causes the concave-convex positioning structure to be exposed, making the surface of the entire stacked energy storage power supply uneven and unsightly. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a stacked energy storage power supply to solve the technical problem in the prior art that the surface of the stacked energy storage power supply is uneven and unsightly.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide a stacked energy storage power supply, comprising a plurality of energy storage units stacked in sequence, wherein two adjacent energy storage units are positioned by plugging and fitting together through a positioning structure, and a decorative piece is provided between two adjacent energy storage units, wherein the decorative piece abuts between the outer peripheries of the two adjacent energy storage units and blocks the positioning structure.

[0006] In one embodiment, the outer side surface of the decorative element is flush with the outer side surface of the energy storage unit;

[0007] Alternatively, the outer side surface of the decorative element is concave relative to the outer side surface of the energy storage unit.

[0008] In one embodiment, one of the surfaces of the energy storage unit along the stacking direction is provided with a boss, a positioning groove is formed in the boss, and another surface of the energy storage unit along the stacking direction is provided with a positioning protrusion, and adjacent positioning protrusions in two adjacent energy storage units are plugged into and matched with the positioning groove.

[0009] In one embodiment, the depth of the positioning groove is less than the height of the boss relative to the outer protrusion of the energy storage unit.

[0010] In one embodiment, the decorative element is sleeved outside the boss, and the inner surface of the decorative element at least partially abuts against the boss;

[0011] Alternatively, a limiting protrusion is formed on the surface of the energy storage unit for limiting the decorative component.

[0012] In one embodiment, a boss is formed on the energy storage unit, a plurality of positioning grooves are formed on the boss, a plurality of positioning protrusions are formed on the energy storage unit, and adjacent positioning protrusions in two adjacent energy storage units are plugged into and matched with the positioning grooves in a one-to-one manner.

[0013] In one embodiment, the decorative piece is sleeved outside the boss, and the inner side surface of the decorative piece is fitted with the outer side surface of the boss.

[0014] In one embodiment, the energy storage unit is formed with a plurality of spaced-apart bosses, each of which is formed with a positioning groove, and the energy storage unit is formed with a plurality of positioning protrusions, and each of the adjacent positioning protrusions in two adjacent energy storage units is plugged into and matched with each of the positioning grooves in a one-to-one correspondence.

[0015] In one embodiment, the bosses are spaced apart along the outer periphery of the energy storage unit, the decorative element is sleeved outside the bosses, and the decorative element abuts against the bosses at positions corresponding to the bosses.

[0016] In one embodiment, the energy storage unit includes a box body and at least two battery modules arranged in the box body. The box body is also provided with a pressure strip, and the pressure strip is arranged on each of the battery modules.

[0017] In one embodiment, at least one end of the pressure strip is provided with a first mounting plate, and the first mounting plate is inclined relative to the stacking direction of the energy storage unit; a mounting member is installed on the inner wall of the box body, and the mounting member includes a second mounting plate spaced apart from the inner wall of the box body, and the second mounting plate is parallel to the first mounting plate and locked by a fastener.

[0018] The stacked energy storage power supply provided by the present application has the following beneficial effects: the stacked energy storage power supply provided by the embodiment of the present application realizes the positioning between two adjacent energy storage units through the plug-in cooperation of the positioning structure, and a decorative piece is arranged between the two adjacent energy storage units, and the decorative piece abuts between the outer peripheries of the two adjacent energy storage units, so that the positioning structure can be shielded by the decorative piece to avoid the exposure of the positioning structure. At the same time, because the decorative piece abuts between the outer peripheries of the two adjacent energy storage units, there will be no gap at the connection between the two adjacent energy storage units from the surface, and the surface is flat and beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, 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 of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A schematic diagram of a partially exploded structure of a stacked energy storage power supply provided in an embodiment of the present application;

[0021] Figure 2 A schematic cross-sectional view of two adjacent energy storage units in a stacked energy storage power supply provided in an embodiment of the present application;

[0022] Figure 3 for Figure 2 A is a magnified schematic diagram of the part in the middle;

[0023] Figure 4 A schematic diagram of the assembly structure of an energy storage unit and a decorative component in a stacked energy storage power supply provided in one of the embodiments of the present application;

[0024] Figure 5 A schematic diagram of the assembly structure of an energy storage unit and a decorative component in a stacked energy storage power supply provided by another embodiment of the present application;

[0025] Figure 6 A schematic cross-sectional view of an energy storage unit in a stacked energy storage power supply provided in an embodiment of the present application;

[0026] Figure 7 for Figure 6 A magnified schematic diagram of the part B in the middle.

[0027] Among them, the reference numerals in the figure are:

[0028] 100, energy storage unit; 110, box body; 120, battery module; 130, cover body; 140, pressure strip; 141, first mounting plate; 150, mounting piece; 151, second mounting plate; 152, first fixing plate; 153, second fixing plate; 154, connecting plate; 160, fastener; 200, positioning structure; 210, boss; 211, positioning groove; 220, positioning protrusion; 300, decorative piece; 400, support frame; 500, control unit. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0031] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application 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 should not be understood as a limitation on the present application.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] See also Figures 1 to 3 The stacked energy storage power supply provided by the embodiment of the present application is now described. The stacked energy storage power supply includes a plurality of energy storage units 100 stacked in sequence, two adjacent energy storage units 100 are plugged and positioned by a positioning structure 200, and a decorative piece 300 is arranged between the two adjacent energy storage units 100, and the decorative piece 300 abuts between the outer peripheries of the two adjacent energy storage units 100 and shields the positioning structure 200.

[0034] The outer periphery of the energy storage unit 100 refers to the outer edge of the energy storage unit 100 along the circumferential direction.

[0035] In the stacked energy storage power supply in the embodiment of the present application, the positioning between two adjacent energy storage units 100 is achieved by plugging and matching the positioning structure 200, and a decorative piece 300 is arranged between the two adjacent energy storage units 100, and the decorative piece 300 abuts between the outer peripheries of the two adjacent energy storage units 100, so that the positioning structure 200 can be shielded by the decorative piece 300 to prevent the positioning structure 200 from being exposed. At the same time, since the decorative piece 300 abuts between the outer peripheries of the two adjacent energy storage units 100, there will be no gap at the connection between the two adjacent energy storage units 100 from the surface, and the surface is flat and beautiful.

[0036] In one embodiment, the outer surface of the decorative member 300 is flush with the outer surface of the energy storage unit 100. In this way, when the decorative member 300 abuts between the outer peripheries of two adjacent energy storage units 100, the entire surfaces of the two adjacent energy storage units 100 and the decorative member 300 are parallel, which not only makes the surface beautiful, but also facilitates the assembly and positioning of the entire stacked energy storage power supply. It can be understood that in other embodiments of the present application, the outer side surface of the decorative member 300 can also be concave relative to the outer side surface of the energy storage unit 100, which is not limited here.

[0037] Optionally, the outer side profile of the decorative element 300 matches the outer side profile of the energy storage unit 100 .

[0038] In one embodiment, see Figure 4 and Figure 5 , the distance between the outer side of the decorative element 300 and the inner side of the decorative element 300 is evenly distributed, that is, the thickness of the decorative element 300 is evenly distributed, and the outer side of the decorative element 300 is offset outward from the inner side of the decorative element 300 at equal intervals. The above design makes the structure of the decorative element 300 simple and the manufacturing process simple. It can be understood that in other embodiments of the present application, the thickness of the decorative element 300 can also be unevenly distributed, for example, the thickness of the decorative element 300 can be designed to be larger in the part where the decorative element 300 needs to be positioned, which is not limited here.

[0039] Optionally, the decorative element 300 may be made of sheet metal, which is light in weight, easy to process, and has a beautiful appearance. It is understandable that in other embodiments of the present application, the decorative element 300 may also be made of plastic, soft rubber, or other materials.

[0040] Optionally, the surface color of the decorative element 300 is the same as or close to the surface color of the energy storage unit 100 , so that the surface consistency of the entire stacked energy storage power supply is high.

[0041] In one embodiment, see Figures 2 to 4 One of the surfaces of the energy storage unit 100 along the stacking direction is formed with a boss 210, and a positioning groove 211 is formed in the boss 210. Another surface of the energy storage unit 100 along the stacking direction is formed with a positioning protrusion 220, and the adjacent positioning protrusions 220 in two adjacent energy storage units 100 are plugged into and matched with the positioning groove 211.

[0042] Among them, the boss 210 is first formed on the surface of the energy storage unit 100 to protrude outward, and then the positioning groove 211 is formed in the boss 210, so that the positioning groove 211 can be avoided to be formed on the energy storage unit 100 to be concave, and the energy storage unit 100 can be avoided to be concave inward, thereby improving the energy density of the energy storage unit 100. In addition, by directly extending the boss 210 and the positioning protrusion 220 outward from the surface of the energy storage unit 100, it is avoided to lock the boss 210 and the positioning protrusion 220 on the energy storage unit 100 by bolts, and avoid the problem of the boss 210 and the positioning protrusion 220 being unsecured on the energy storage unit 100.

[0043] In one embodiment, see Figure 3 The depth of the positioning groove 211 is less than the height of the boss 210 relative to the energy storage unit 100, that is, the positioning groove 211 extends from the end of the boss 210 away from the energy storage unit 100 toward the energy storage unit 100, but the positioning groove 211 does not extend into the interior of the energy storage unit 100, thereby preventing the energy storage unit 100 from sinking inward and improving the energy density of the energy storage unit 100.

[0044] In one embodiment, see Figure 4 and Figure 5 , the decorative member 300 is sleeved outside the boss 210, and the inner surface of the decorative member 300 at least partially abuts against the boss 210 for limiting position, that is, during assembly, the boss 210 can abut against the inner surface of the decorative member 300 for limiting position, ensuring that the decorative member 300 is accurately positioned between two adjacent energy storage units 100. It can be understood that in other embodiments of the present application, a limiting protrusion for limiting the decorative member 300 can also be formed by additionally protruding on the surface of the energy storage unit 100, for example, the limiting protrusion is spaced apart from the boss 210, which is not the only limitation here.

[0045] In one embodiment, see Figure 3 and Figure 4 A plurality of spaced bosses 210 are formed on the energy storage unit 100, and a positioning groove 211 is formed on each boss 210. A plurality of positioning protrusions 220 are formed on the energy storage unit 100, and adjacent positioning protrusions 220 in two adjacent energy storage units 100 are plugged into and matched with the positioning grooves 211 one by one.

[0046] The arrangement of the one-to-one corresponding plug-in matching of the multiple positioning grooves 211 and the multiple positioning protrusions 220 can, on the one hand, stabilize the positioning of two adjacent energy storage units 100, and can also enhance the connection reliability between the two adjacent energy storage units 100. In addition, a boss 210 is formed corresponding to each positioning groove 211, thereby reducing the outer convex area of ​​the energy storage unit 100 and reducing the weight of the energy storage unit 100.

[0047] In this example, see Figure 4 , each boss 210 is spaced and distributed along the outer periphery of the energy storage unit 100, and the decorative piece 300 is sleeved outside each boss 210, and the decorative piece 300 is arranged to abut against the boss 210 at the position corresponding to the boss 210. During assembly, the decorative piece 300 can be sleeved outside each boss 210 first, and then the adjacent energy storage units 100 are stacked up and down, and the positioning is formed by the insertion and cooperation of the positioning protrusion 220 and the positioning groove 211. When the energy storage unit 100 is assembled, the decorative piece 300 just abuts between the outer peripheries of two adjacent energy storage units 100.

[0048] The height of the decorative piece 300 is higher than that of the boss 210 . During assembly, the positioning protrusion 220 is inserted into the positioning groove 211 of the boss 210 . The decorative piece 300 just covers both the boss 210 and the positioning protrusion 220 to ensure that there is no gap between the energy storage units 100 .

[0049] In this embodiment, the bosses 210 are spaced apart along the outer periphery of the energy storage unit 100 , so that the bosses 210 can abut against different positions of the decorative element 300 to limit the decorative element 300 accurately and securely positioned on the energy storage unit 100 .

[0050] Optionally, the number of bosses 210 is four, and the four bosses 210 correspond to the four corner positions of the energy storage unit 100, so that the four corner positions of the decorative member 300 can be abutted and limited by the four bosses 210 to ensure the assembly reliability of the decorative member 300 on the energy storage unit 100. It can be understood that in other embodiments of the present application, the number of bosses 210 can also be three, five, or more than five, and the distribution of the bosses 210 can be distributed according to the actual shape of the decorative member 300, which is not limited here.

[0051] In another embodiment of the present application, see Figure 5 A boss 210 is formed on the energy storage unit 100, and a plurality of positioning grooves 211 are formed on the boss 210. A plurality of positioning protrusions 220 are formed on the energy storage unit 100. The adjacent positioning protrusions 220 in two adjacent energy storage units 100 are plugged into and matched with the positioning grooves 211 one by one.

[0052] The arrangement of the one-to-one corresponding plug-in matching of the multiple positioning grooves 211 and the multiple positioning protrusions 220 can, on the one hand, stabilize the positioning of two adjacent energy storage units 100, and can also enhance the connection reliability between the two adjacent energy storage units 100. In addition, by forming a boss 210 on one surface of the energy storage unit 100, and then forming a plurality of positioning grooves 211 on the boss 210, the number of times the boss 210 is processed can be reduced.

[0053] In the above embodiment of a boss 210, please refer to Figure 5 , the decorative piece 300 is sleeved outside the boss 210, and the inner side of the decorative piece 300 is fitted with the outer side of the boss 210. The outer side profile of the boss 210 is matched with the inner side profile of the decorative piece 300, and the decorative piece 300 is positioned by the boss 210. During assembly, the decorative piece 300 can be sleeved outside the boss 210 first, and then the adjacent energy storage units 100 are stacked up and down, and the positioning is formed by the plug-in cooperation of the positioning protrusion 220 and the positioning groove 211. When the energy storage unit 100 is assembled, the decorative piece 300 just abuts between the outer peripheries of two adjacent energy storage units 100.

[0054] The height of the decorative piece 300 is higher than that of the boss 210 . During assembly, the positioning protrusion 220 is inserted into the positioning groove 211 of the boss 210 . The decorative piece 300 just covers both the boss 210 and the positioning protrusion 220 to ensure that there is no gap between the energy storage units 100 .

[0055] In this embodiment, the decorative member 300 is positioned by an entire boss 210 , so that the decorative member 300 is stably positioned on the energy storage unit 100 , which is beneficial to the stacking operation between the energy storage units 100 .

[0056] In one embodiment, see Figure 1 The stacked energy storage power supply further includes a support frame 400, and the energy storage unit 100 located at the bottom is supported on the support frame 400. Specifically, the support frame 400 and the energy storage unit 100 can also be positioned by a concave-convex plug-in method.

[0057] In one embodiment, see Figure 1 The stacked energy storage power supply further includes a control unit 500, which is disposed above each energy storage unit 100. Each energy storage unit 100 is disposed in parallel, and the control unit 500 is electrically connected to each energy storage unit 100. In this embodiment, by stacking multiple energy storage units 100 together, the power supply capacity is increased while the floor space is reduced, making it easier to store.

[0058] In one embodiment, see Figure 6 The energy storage unit 100 includes a box body 110, at least one battery module 120 disposed in the box body 110, and a cover body 130 disposed on the box body 110. The box body 110 is an integrated structure. The integrated design of the box body 110 facilitates installation and enhances product reliability design.

[0059] In one embodiment, see Figure 6, each battery module 120 is spaced apart along the first direction X, and the battery module 120 extends along the second direction. At least two pressure strips 140 are provided in the box body 110, and the opposite ends of the pressure strips 140 are respectively connected to the box body 110, and the pressure strips 140 extend along the first direction X. The pressure strips 140 are pressed on each battery module 120, and each pressure strip 140 is spaced apart along the second direction. Among them, the setting of the pressure strips 140 can ensure the installation stability of the battery module 120 in the box body 110.

[0060] In one embodiment, see Figure 6 and Figure 7 , first mounting plates 141 are respectively provided at opposite ends of the pressure strip 140, and the first mounting plates 141 are arranged obliquely relative to the stacking direction of the energy storage unit 100; a mounting member 150 is installed on the inner wall of the box body 110, and the mounting member 150 includes a second mounting plate 151, and the second mounting plate 151 is arranged with a spacing between the second mounting plate 151 and the inner wall of the box body 110, and the second mounting plate 151 is arranged parallel to and in close contact with the first mounting plate 141, and the first mounting plate 141 and the second mounting plate 151 are locked by a fastener 160. In this embodiment, by obliquely arranging the first mounting plate 141 and the second mounting plate 151 relative to the stacking direction of the energy storage unit 100, the fastener 160 can also be arranged obliquely, and the oblique arrangement of the fastener 160 occupies less space than the extension arrangement of the fastener 160 along the first direction X, thereby effectively reducing the internal structural space of the box body 110 and increasing the energy density of the energy storage unit 100.

[0061] The first mounting plate 141 is tilted relative to the stacking direction of the energy storage units 100 , which means that the angle between the first mounting plate 141 and the stacking direction of the energy storage units 100 is greater than 0 degrees and less than 90 degrees.

[0062] For details, please refer to Figure 7 The mounting member 150 further includes a first fixing plate 152, a second fixing plate 153 and a connecting plate 154, wherein the first fixing plate 152 and the second fixing plate 153 are both fitted and locked on the inner wall of the box body 110, the first fixing plate 152 is connected to one end of the second mounting plate 151, and the second fixing plate 153 is connected to the other end of the second mounting plate 151 through the connecting plate 154. The second mounting plate 151, the first fixing plate 152, the second fixing plate 153, the connecting plate 154 and the inner wall of the box body 110 are enclosed together to form an accommodating space for accommodating the fastener 160. The setting of the connecting plate 154 is used to connect the second fixing plate 153 and the second mounting plate 151 on the one hand, and to enhance the structural strength of the entire mounting member 150 on the other hand.

[0063] Specifically, the connecting plate 154 includes two vertically connected connecting portions, and the two connecting portions are respectively connected to the second fixing plate 153 and the second mounting plate 151 .

[0064] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A stacked energy storage power supply, characterized in that: It comprises a plurality of energy storage units stacked in sequence, two adjacent energy storage units are positioned by plugging and fitting through a positioning structure, a decorative piece is arranged between the two adjacent energy storage units, the decorative piece abuts between the outer peripheries of the two adjacent energy storage units and shields the positioning structure; The energy storage unit includes a box body and at least two battery modules arranged in the box body, and a pressure strip is also arranged in the box body, and the pressure strip is arranged on each of the battery modules; At least one end of the pressure strip is provided with a first mounting plate, and the first mounting plate is arranged obliquely relative to the stacking direction of the energy storage unit; a mounting member is installed on the inner wall of the box body, and the mounting member includes a second mounting plate spaced apart from the inner wall of the box body, and the second mounting plate is arranged parallel to the first mounting plate and is locked by a fastener; The mounting component also includes a first fixing plate, a second fixing plate and a connecting plate; the first fixing plate and the second fixing plate are both fitted and locked to the inner wall of the box, the first fixing plate is connected to one end of the second mounting plate, the second fixing plate is connected to the other end of the second mounting plate via the connecting plate, and the second mounting plate, the first fixing plate, the second fixing plate, the connecting plate and the inner wall of the box together enclose a storage space for accommodating the fastener.

2. The stacked energy storage power supply according to claim 1, characterized in that: One of the surfaces of the energy storage unit along the stacking direction is formed with a boss, and a positioning groove is formed in the boss. Another surface of the energy storage unit along the stacking direction is formed with a positioning protrusion, and adjacent positioning protrusions in two adjacent energy storage units are plugged into and matched with the positioning groove.

3. The stacked energy storage power supply according to claim 2, characterized in that: The depth of the positioning groove is smaller than the height of the boss relative to the outer protrusion of the energy storage unit.

4. The stacked energy storage power supply according to claim 2, characterized in that: The decorative piece is sleeved outside the boss, and at least a portion of the inner surface of the decorative piece abuts against the boss; Alternatively, a limiting protrusion is formed on the surface of the energy storage unit for limiting the decorative component.

5. The stacked energy storage power supply according to claim 2, characterized in that: The energy storage unit has a boss formed on it, a plurality of positioning grooves spaced apart are formed on the boss, a plurality of positioning protrusions are formed on the energy storage unit, and adjacent positioning protrusions in two adjacent energy storage units are plugged in and matched with the positioning grooves in a one-to-one correspondence.

6. The stacked energy storage power supply according to claim 5, characterized in that: The decorative piece is sleeved outside the boss, and the inner side surface of the decorative piece is fitted with the outer side surface of the boss.

7. The stacked energy storage power supply according to claim 2, characterized in that: The energy storage unit is formed with a plurality of bosses distributed at intervals, each of which is formed with the positioning groove, and the energy storage unit is formed with a plurality of positioning protrusions, and each of the adjacent positioning protrusions in two adjacent energy storage units is plugged and matched with each of the positioning grooves in a one-to-one correspondence.

8. The stacked energy storage power supply according to claim 7, characterized in that: The bosses are spaced apart and distributed along the outer periphery of the energy storage unit, the decorative piece is sleeved outside the bosses, and the decorative piece is in contact with the bosses at positions corresponding to the bosses.

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