Double-layer explosion-proof electricity storage box

Abstract

The utility model relates to the technical field of electricity storage boxes, in particular to a double-layer anti-explosion electricity storage box which comprises an outer box body, a first door body and an inner box body, the outer box body is provided with a first containing cavity, one side of the first containing cavity is provided with a first opening, and the side, away from the first opening, of the first containing cavity is provided with a plurality of through first convection holes; the first door body is rotatably installed on the outer box body, when the first door body rotates, the first door body closes or opens the first opening, the first door body is provided with a plurality of through second convection holes, the first convection holes, the first containing cavity and the second convection holes jointly form a heat dissipation channel, the inner box body is arranged in the first containing cavity, the inner box body is provided with a second containing cavity, and the second containing cavity is communicated with the first containing cavity. According to the utility model, heat on the surface of the inner box body is rapidly taken away by external air and flows out through the heat dissipation channel, so that the advantage of better heat dissipation performance is realized.

Description

Technical Field

[0001] The present application relates to the technical field of power storage boxes, and more specifically to a double-layer explosion-proof power storage box. Background Art

[0002] A power storage box is generally a device used to store electrical energy. It has a built-in lithium-ion battery. The battery will generate a lot of heat when charging and discharging. When the power storage box is placed outdoors, one must first consider the impact of high summer temperatures on the temperature of the storage box's internal chamber, and second, ensure the explosion-proof strength of the storage box to avoid injuries to pedestrians in the event of a battery explosion.

[0003] There is an explosion-proof electricity storage box, such as Figure 1 As shown, it includes an outer box 901 and an inner box 902, the inner box 902 is arranged inside the outer box 901, the battery is placed inside the inner box 902, and the outer box 901 has a ventilation hole 9011 only on one side away from the door body. Through the double-layer design, when an accident occurs to the battery, it is blocked by the inner box 902 and the outer box 901, which can effectively reduce the risk of injury to passers-by. However: due to the double-layer design, at the same time, the outer box 901 has a ventilation hole 9011 on only one side, the temperature inside the inner box 902 is relatively high, and the heat exchange with the outside air is relatively poor.

[0004] Therefore, there is a demand for providing a double-layer explosion-proof electricity storage box with better heat dissipation performance. Utility Model Content

[0005] The main purpose of the present application is to provide a double-layer explosion-proof electricity storage box, wherein the double-layer explosion-proof electricity storage box includes an outer box body, a first door body and an inner box body, the outer box body has a first accommodating chamber, one side of the first accommodating chamber has a first opening, the side of the first accommodating chamber away from the first opening has a plurality of penetrating first convection holes, the first door body is rotatably mounted on the outer box body, when the first door body rotates, the first door body closes or opens the first opening, the first door body has a plurality of penetrating second convection holes, the first convection holes, the first accommodating chamber and the second convection holes together form a heat dissipation channel, the inner box body is placed in the first accommodating chamber, the inner box body has a second accommodating chamber, and the heat dissipation channel is set to facilitate the outside air to quickly take away the heat on the surface of the inner box body and flow out, thereby achieving the advantage of better heat dissipation performance.

[0006] Another object of the present application is to provide a double-layer explosion-proof electricity storage box, wherein the double-layer explosion-proof electricity storage box also includes a plurality of first supporting structures and a plurality of support plates, each of the first supporting structures includes two brackets, one of the brackets is connected to the barrier, and the other of the brackets is connected to the side of the battery cavity away from the barrier, the support plates correspond to the first supporting structures one by one, and the two ends of each of the support plates are respectively abutted against the two brackets in the corresponding first supporting structure, so that the battery is supported by the support plates.

[0007] In order to achieve at least one of the above-mentioned invention purposes, the present application provides a double-layer explosion-proof electricity storage box, wherein the double-layer explosion-proof electricity storage box comprises:

[0008] an outer box, the outer box having a first accommodating chamber, one side of the first accommodating chamber having a first opening, and a side of the first accommodating chamber away from the first opening having a plurality of penetrating first convection holes; and

[0009] a first door body, the first door body being rotatably mounted on the outer box body, and when the first door body rotates, the first door body closes or opens the first opening, the first door body having a plurality of second convection holes penetrating therethrough, the first convection holes, the first accommodating cavity and the second convection holes jointly forming a heat dissipation channel; and

[0010] An inner box is placed in the first accommodating cavity, and the inner box has a second accommodating cavity.

[0011] In one or more embodiments of the present application, the bottom of the second accommodating cavity has a plurality of first flow holes, and the top wall of the second accommodating cavity has a plurality of second flow holes.

[0012] In one or more embodiments of the present application, the double-layer explosion-proof power storage box further includes a barrier, which is vertically arranged in the second accommodating chamber and divides the second accommodating chamber into a battery chamber for placing batteries and a debugging chamber for placing inverters and control switches.

[0013] In one or more embodiments of the present application, the barrier has a plurality of hollow grooves, and two ends of the hollow grooves are respectively connected to the battery cavity and the debugging cavity.

[0014] In one or more embodiments of the present application, the double-layer explosion-proof electricity storage box also includes a plurality of first supporting structures and a plurality of support plates, each of the first supporting structures includes two brackets, one of the brackets is connected to the barrier member, and the other bracket is connected to the side of the battery cavity away from the barrier member, the support plates correspond one-to-one to the first supporting structures, and the two ends of each of the support plates are respectively abutted against the two brackets in the corresponding first supporting structures.

[0015] In one or more embodiments of the present application, the double-layer explosion-proof electricity storage box also includes a second door body, which is rotatably mounted on the inner box body. The inner box body has a second opening on one side close to the first door body. When the second door body rotates, the second door body closes or opens the second opening.

[0016] In one or more embodiments of the present application, one end of each of the brackets facing away from the second door body is spaced a predetermined distance from the wall of the first accommodating cavity facing away from the second door body and forms a notch, and one side of each of the support plates has an engaging portion, and when the support plate is placed on the corresponding bracket, the engaging portion is inserted into the corresponding notch.

[0017] In one or more embodiments of the present application, each of the support plates has an air vent extending from the bottom surface of the support plate to the top surface of the support plate.

[0018] In one or more embodiments of the present application, the air vent is located on one side edge of the support plate away from the second door body and is in the shape of an elongated strip, the double-layer explosion-proof electricity storage box also includes a U-shaped partition, the U-shaped edge of the U-shaped partition is in contact with the cavity wall of the second accommodating cavity, the U-shaped partition is vertically arranged, and the bottom of the U-shaped partition is located above the bottom support plate, and the U-shaped partition passes through the air vent of the top support plate and is close to the top wall of the second accommodating cavity.

[0019] In one or more embodiments of the present application, the bottom of the outer box has a groove, the bottom of the inner box is placed in the groove, and the bottom of the inner box has a plurality of power holes.

[0020] In an embodiment of the present application, a double-layer explosion-proof electricity storage box includes an outer box body, a first door body and an inner box body, the outer box body has a first accommodating chamber, one side of the first accommodating chamber has a first opening, the side of the first accommodating chamber away from the first opening has a plurality of penetrating first convection holes, the first door body is rotatably installed on the outer box body, when the first door body rotates, the first door body closes or opens the first opening, the first door body has a plurality of penetrating second convection holes, the first convection holes, the first accommodating chamber and the second convection holes together form a heat dissipation channel, the inner box body is placed in the first accommodating chamber, the inner box body has a second accommodating chamber, and the heat dissipation channel is set to facilitate the outside air to quickly take away the heat on the surface of the inner box body and flow out, thereby achieving the advantage of better heat dissipation performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] These and / or other aspects and advantages of the present application will become clearer and easier to understand from the following detailed description of the embodiments of the present application in conjunction with the accompanying drawings, in which:

[0022] Figure 1 The figure shows a structural schematic diagram of an existing explosion-proof electricity storage box;

[0023] Figure 2 The figure shows a schematic diagram of the structure of a double-layer explosion-proof electricity storage box of the utility model from a front perspective;

[0024] Figure 3 The figure shows a schematic diagram of the structure of a double-layer explosion-proof electricity storage box of the utility model from the back side;

[0025] Figure 4 The figure shows a schematic diagram of the structure of a double-layer explosion-proof electricity storage box with the first door and the second door both opened;

[0026] Figure 5 The figure shows the structural schematic diagram of the double-layer explosion-proof power storage box from another angle;

[0027] Figure 6 Pictured Figure 5 A local enlarged view of point C;

[0028] Figure 7 The figure shows a schematic diagram of the structure on the back of the inner box. DETAILED DESCRIPTION

[0029] The terms and words used in the following specification and claims are not limited to the literal meanings, but are merely used by the inventor to enable a clear and consistent understanding of the present application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of the present application is provided for illustrative purposes only and not for the purpose of limiting the present application as defined by the appended claims and their equivalents.

[0030] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0031] Although ordinals such as "first," "second," and the like will be used to describe various components, those components are not limited herein. The term is used only to distinguish one component from another. For example, a first component may be referred to as a second component, and likewise, a second component may be referred to as a first component without departing from the teachings of the utility model concept. The term "and / or" as used herein includes any and all combinations of one or more associated listed items.

[0032] The terms used herein are only used for the purpose of describing various embodiments and are not intended to be limiting. As used herein, singular forms are intended to also include plural forms, unless the context clearly indicates an exception. In addition, it will be understood that the terms "including" and / or "having" when used in this specification specify the presence of the described features, numbers, steps, operations, components, elements or combinations thereof, without excluding the presence or addition of one or more other features, numbers, steps, operations, components, elements or groups thereof.

[0033] Application Overview

[0034] The existing double-layer explosion-proof electricity storage box has a high temperature inside the box due to its double-layer design, and the heat exchange with the outside air is poor.

[0035] Based on the above technical problems, the present application proposes a double-layer explosion-proof electricity storage box, wherein the double-layer explosion-proof electricity storage box has a simple structure, does not involve complicated manufacturing processes and expensive materials, and has high economic efficiency. At the same time, for manufacturers, the double-layer explosion-proof electricity storage box provided by the present application is easy to produce and low-cost, which is more conducive to controlling production costs and further conducive to product promotion and use.

[0036] Schematic double-layer explosion-proof power storage box,

[0037] refer to Figures 2 to 7 According to a preferred embodiment of the utility model, a double-layer explosion-proof electricity storage box includes an outer box body 10, a first door body 20 and an inner box body 30.

[0038] Specifically, Figure 4 As shown, the outer box body 10 has a first accommodating cavity 101, and one side of the first accommodating cavity 101 has a first opening 1011. In the embodiment of the present application, the first opening 1011 is arranged on the front side of the outer box body 10; in addition, the first door body 20 is rotatably mounted on the outer box body 10 through a pin shaft, and when the first door body 20 rotates, the first door body 20 closes or opens the first opening 1011; in addition, the inner box body 30 is placed in the first accommodating cavity 101, and the inner box body 30 has a second accommodating cavity 301, and the second accommodating cavity 301 is used to place electrical components such as lithium iron phosphate batteries and control switches.

[0039] It should be noted that by sequentially sleeved the inner box 30 and the outer box 10 outside the lithium iron phosphate battery, the explosion-proof capability and safety of the double-layer explosion-proof power storage box are effectively improved. Even if the lithium iron phosphate battery cell is short-circuited and explodes after high temperature and high pressure during overcharging or over-discharging, the double-layer barrier of the inner box 30 and the outer box 10 effectively reduces the risk of outdoor pedestrians being injured by battery explosion when passing by, and the explosion-proof performance is good.

[0040] Furthermore, if Figure 2 and Figure 3 As shown, the first accommodating cavity 101 has a plurality of penetrating first convection holes 1012 on a side away from the first opening 1011, and the first door body 20 has a plurality of penetrating second convection holes 201. The first convection holes 1012, the first accommodating cavity 101 and the second convection holes 201 together form a heat dissipation channel, and the outside air can flow into the first accommodating cavity 101 from the first convection holes 1012, and after flowing through the outer wall of the inner box body 30, it flows out from the second convection holes 201. Compared with the prior art During the operation, ventilation holes are only opened on the side of the first accommodating chamber 101 away from the first door body 20, and external air needs to flow in and out on the same side, resulting in low heat dissipation efficiency. In the embodiment of the present application, the first convection holes 1012 and the second convection holes 201 are arranged on both sides of the first accommodating chamber 101 to form a heat dissipation channel with ventilation on both sides. When external air flows in from one side of the first accommodating chamber 101, it can be quickly discharged from the other side of the first accommodating chamber 101 and take away the heat of the inner box body 30, thereby having the advantage of better heat dissipation performance.

[0041] It should also be noted that in the embodiments of the present application, Figure 2 and Figure 3 As shown, the first convection holes 1012 and the second convection holes 201 are arranged symmetrically, and the first convection holes 1012 and the second convection holes 201 are arranged in a rectangular array.

[0042] Furthermore, if Figure 4 As shown, the bottom of the second accommodating chamber 301 has a plurality of first flow holes 3011, and the top wall of the second accommodating chamber 301 has a plurality of second flow holes 3012. In the embodiment of the present application, the number of the first flow holes 3011 is four, and the four first flow holes 3011 are arranged in groups of two and on both sides of the inner box body 30.

[0043] It should be noted that, by setting the first circulation hole 3011 on the bottom wall of the second accommodating chamber 301 and setting the second circulation hole 3012 on the top wall of the second accommodating chamber 301, when external air penetrates from the first circulation hole 3011, the hot air in the second accommodating chamber 301 can be discharged along the second circulation hole 3012, and the external air with lower temperature flowing through the inner box 30 is sucked into the first circulation hole 3011, thereby further reducing the temperature in the second accommodating chamber 301.

[0044] Furthermore, if Figure 4As shown, the double-layer explosion-proof electricity storage box also includes a second door body 40, which is rotatably mounted on the inner box body 30. The inner box body 30 has a second opening 302 on one side close to the first door body 20. When the second door body 40 rotates, the second door body 40 closes or opens the second opening 302.

[0045] It should be noted that no holes are provided on the second door body 40, and no holes are provided on the top wall and the left and right side walls of the first accommodating chamber 101. It should also be noted that when installed, the front of the double-layer explosion-proof power storage box faces the sidewalk, and since the second door body 40 and the top wall of the first accommodating chamber 101 are completely closed, the open flame generated when the battery explodes is blocked by the second door body 40 and the top wall of the first accommodating chamber 101, and is not easy to splash onto the sidewalk.

[0046] Furthermore, if Figure 4 and Figure 5 As shown, the double-layer explosion-proof power storage box also includes a barrier 50, which is vertically arranged in the second accommodating chamber 301 and divides the second accommodating chamber 301 into a battery chamber 301A for placing lithium iron phosphate batteries and a debugging chamber 301B for placing inverters and control switches, and the barrier 50 is welded or bolted to the inner box body 30.

[0047] Specifically, Figure 5 As shown, the barrier 50 has a plurality of hollow grooves 501 , and both ends of the hollow grooves 501 are respectively connected to the battery cavity 301A and the debugging cavity 301B.

[0048] It should be noted that the first function of the hollow groove 501 is to allow the air in the battery cavity 301A to circulate with the air in the debugging cavity 301B; the second function of the hollow groove 501 is to facilitate the electrical connection of the wires led out of the control switch with the lithium iron phosphate battery; the third function of the hollow groove 501 is to reduce the overall weight of the double-layer explosion-proof power storage box to facilitate transportation and reduce production costs.

[0049] Furthermore, if Figure 4 and Figure 5 As shown, the double-layer explosion-proof electricity storage box also includes a plurality of first supporting structures (not marked in the figure) and a plurality of support plates 60, each of the first supporting structures includes two brackets 70, one of the brackets 70 is connected to the barrier 50, and the other bracket 70 is connected to the side of the battery cavity 301A away from the barrier 50, the support plates 60 correspond to the first supporting structures one by one, and the two ends of each of the support plates 60 are respectively abutted against the two brackets 70 in the corresponding first supporting structure.

[0050] It should be noted that, in the embodiment of the present application, two lithium iron phosphate batteries are placed in the battery compartment, so the number of the support plates 60 and the first supporting structure is two, and the two first supporting structures are separated by a predetermined distance in the height direction of the second accommodating cavity 301, and a lithium iron phosphate battery is placed on each support plate 60. In addition, each bracket 70 is U-shaped, and one bracket 70 in each first supporting structure is bolted to the barrier 50, and the other bracket 70 is bolted to the side of the battery cavity 301A away from the barrier 50.

[0051] It should also be noted that in the prior art, the top and bottom surfaces of the pallet 60 are both flat. When the pallet 60 is placed on the two brackets 70, the pallet 60 is not actually connected to the brackets 70, and the brackets 70 only support the pallet 60. This causes the position of the pallet 60 to shift when the installer places the lithium iron phosphate battery on the pallet 60, affecting the assembly efficiency.

[0052] In view of this, in the embodiments of the present application, Figure 5 and Figure 6 As shown, one end of each of the brackets 70 facing away from the second door body 40 is spaced a predetermined distance from the wall of the first accommodating cavity 101 facing away from the second door body 40 and forms a notch 701. One side of each of the support plates 60 has an engaging portion 601. When the support plate 60 is placed on the corresponding bracket 70, the engaging portion 601 is inserted into the corresponding notch 701.

[0053] It should be noted that, when placing, the installer makes the support plate 60 be located above the bracket 70, and makes one end of the support plate 60 having the embedded portion 601 abut against the cavity wall of the second accommodating cavity 301, and then translates the support plate 60 downward, so that the support plate 60 is placed on the bracket 70, and the embedded portion 601 is inserted into the notch 701. It should be pointed out that the embedded portion 601 can be composed of two rectangular bosses arranged at intervals at both ends of the support plate 60, or a long strip boss extending from one end of the support plate 60 to the other end of the support plate 60. When the embedded portion 601 is placed in the notch 701, the side walls of the embedded portion 601 are respectively in contact with the cavity wall of the second accommodating cavity 301 and the end of the bracket 70.

[0054] Furthermore, in order to facilitate the upward flow of air at the bottom of the battery chamber 301A, Figure 4As shown, each of the support plates 60 has a vent hole 602 extending from the bottom surface of the support plate 60 to the top surface of the support plate 60. It should be noted that the vent holes 602 can be arranged on one side of the support plate 60 in a strip shape, or can be arranged in a rectangular array or an annular array in the middle section of the support plate 60.

[0055] Further, in the embodiments of the present application, Figure 4 and Figure 5 As shown, the air vent 602 is located on one side edge of the support plate 60 away from the second door body 40 and is in the shape of an elongated strip. The double-layer explosion-proof electricity storage box also includes a U-shaped partition 80. The U-shaped edge of the U-shaped partition 80 is in contact with the cavity wall of the second accommodating cavity 301. The U-shaped partition 80 is arranged vertically, and the bottom of the U-shaped partition 80 is located above the support plate 60 at the bottom, and the U-shaped partition 80 passes through the air vent 602 of the support plate 60 at the top and is close to the top wall of the second accommodating cavity 301. By setting the U-shaped partition 80, the chimney effect is further enhanced to facilitate the rapid discharge of hot air from the bottom upward.

[0056] Furthermore, if Figure 4 As shown, the second accommodating cavity 301 has a plurality of third flow holes 3013 on a side away from the second door body 40 , and the third flow holes 3013 are directly opposite to a side of the lithium iron phosphate battery and the control switch.

[0057] Furthermore, since the first convection hole 1012 and the third flow hole 3013 are respectively opened on the side of the outer box 10 and the inner box 30 away from the second door body 40, in order to prevent external rainwater from passing through the first convection hole 1012 and flowing into the third flow hole 3013, Figure 7 As shown, the end of the third flow hole 3013 facing away from the second door body 40 has an extension ring 3014 arranged in an expanded hole.

[0058] Furthermore, in order to facilitate the connection of the underground cable with the components in the double-layer explosion-proof power storage box, Figure 5 As shown, the bottom of the outer box 10 has a groove 102 , the bottom of the inner box 30 is placed in the groove 102 , and the inner box 30 is bolted to the outer box 10 , and the bottom of the inner box 30 has a plurality of power holes 303 .

[0059] In summary, the double-layer explosion-proof electricity storage box based on the embodiment of the present application is explained, which provides the double-layer explosion-proof electricity storage box with advantages such as better heat dissipation performance.

[0060] It is worth mentioning that in the embodiment of the present application, the double-layer explosion-proof electricity storage box has a simple structure, does not involve complex manufacturing processes and expensive materials, and has high economic efficiency. At the same time, for manufacturers, the double-layer explosion-proof electricity storage box provided by the present application is easy to produce and has low cost, which is more conducive to controlling production costs and further conducive to product promotion and use.

[0061] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A double-layer explosion-proof electricity storage box, characterized in that: The double-layer explosion-proof electricity storage box includes an outer box, the outer box having a first accommodating chamber, one side of the first accommodating chamber having a first opening, and a side of the first accommodating chamber away from the first opening having a plurality of penetrating first convection holes; and a first door body, the first door body is rotatably mounted on the outer box body, when the first door body rotates, the first door body closes or opens the first opening, the first door body has a plurality of second convection holes penetrating therethrough, the first convection holes, the first accommodating cavity and the second convection holes together form a heat dissipation channel; as well as an inner box, the inner box being placed in the first accommodating chamber, the inner box having a second accommodating chamber, the bottom of the second accommodating chamber having a plurality of first flow holes, and the top wall of the second accommodating chamber having a plurality of second flow holes; and a barrier, the barrier being vertically arranged in the second accommodating chamber and dividing the second accommodating chamber into a battery chamber for accommodating a battery and a debugging chamber for accommodating an inverter and a control switch, the barrier having a plurality of hollow grooves, both ends of the hollow grooves being respectively connected to the battery chamber and the debugging chamber; and A plurality of first supporting structures, each of which comprises two brackets, one of which is connected to the barrier, and the other of which is connected to a side of the battery cavity away from the barrier; as well as A plurality of support plates, each of which corresponds to the first supporting structure one by one, and two ends of each of the support plates respectively abut against two of the corresponding brackets in the first supporting structure.

2. The double-layer explosion-proof electricity storage box according to claim 1 is characterized in that: The double-layer explosion-proof electricity storage box also includes a second door body, which is rotatably mounted on the inner box body. The inner box body has a second opening on one side close to the first door body. When the second door body rotates, the second door body closes or opens the second opening.

3. The double-layer explosion-proof electricity storage box according to claim 2 is characterized in that: One end of each of the brackets facing away from the second door body is spaced a predetermined distance from the wall of the first accommodating cavity facing away from the second door body and forms a notch. One side of each of the support plates has an engaging portion, and when the support plate is placed on the corresponding bracket, the engaging portion is inserted into the corresponding notch.

4. The double-layer explosion-proof electricity storage box according to claim 2 or 3, characterized in that: Each of the support plates has an air vent which penetrates from the bottom surface of the support plate to the top surface of the support plate.

5. The double-layer explosion-proof electricity storage box according to claim 4 is characterized in that: The air vent is located on one side edge of the support plate away from the second door body and is in the shape of an elongated strip. The double-layer explosion-proof electricity storage box also includes a U-shaped partition, and the U-shaped edge of the U-shaped partition is in contact with the cavity wall of the second accommodating cavity. The U-shaped partition is arranged vertically, and the bottom of the U-shaped partition is located above the support plate at the bottom, and the U-shaped partition passes through the air vent of the support plate at the top and is close to the top wall of the second accommodating cavity.

6. The double-layer explosion-proof electricity storage box according to claim 2 or 3, characterized in that: The bottom of the outer box body is provided with a groove, the bottom of the inner box body is placed in the groove, and the bottom of the inner box body is provided with a plurality of power-through holes.

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