Auxiliary temperature control device of energy storage cabinet and energy storage cabinet

Abstract

The utility model provides an auxiliary temperature control device of an energy storage cabinet and the energy storage cabinet, the auxiliary temperature control device is arranged in the side wall of the energy storage cabinet, the auxiliary temperature control device comprises a lifting part and a deformation bag, the lifting part can move up and down in the vertical direction, the deformation bag is connected with the lifting part, the deformation bag can generate deformation along with the lifting of the lifting part, and the deformation bag is connected with the lifting part. In the direction from inside to outside, the cross section of the deformation bag can be deformed to obliquely extend upwards or obliquely extend downwards; according to the energy storage cabinet, the auxiliary temperature control device is arranged in the side wall of the energy storage cabinet to adjust the deformation form of the deformation bag, so that the heat-conducting medium forms integral flow circulation in the deformation bag or local circulation near the bag wall under the action of'hot rising and cold falling ', heat (cold) of the external environment is utilized to supplement the energy storage cabinet, and the energy storage cabinet is more energy-saving and environment-friendly. Or heat transfer between the energy storage cabinet and the outside is blocked, so that the operation load of the air conditioner is reduced, the operation time of the air conditioner is shortened, and the energy consumption of the air conditioner is reduced.

Description

Technical Field

[0001] The utility model relates to an auxiliary temperature control device of an energy storage cabinet and an energy storage cabinet. Background Art

[0002] With the continuous development of energy storage technology, energy storage cabinets (or "energy storage cabinets") have been widely used in energy storage power stations, commercial areas, industrial plants and other scenarios due to their high space utilization. Energy storage cabinets are often equipped with electrical components such as batteries and inverters, which have certain temperature control requirements for the temperature environment inside the cabinet.

[0003] Energy storage cabinets in the prior art are often equipped with temperature control equipment such as air conditioners, fans, and water cooling structures to control the temperature inside the cabinet. Taking an energy storage cabinet equipped with an air conditioner as an example, although the air conditioner can perform relatively good temperature regulation inside the relatively closed energy storage cabinet, the heat transfer between the energy storage cabinet and the outside world often causes the air conditioner to run for a long time and consume a lot of energy, which is not conducive to reducing the overall energy consumption of the energy storage cabinet. Utility Model Content

[0004] In view of this, the utility model aims to propose an auxiliary temperature control device of an energy storage cabinet and an energy storage cabinet, so as to solve the problems in the prior art that the temperature control equipment (such as air conditioning) of the energy storage cabinet has a long operating time and high energy consumption due to heat transfer between the energy storage cabinet and the outside world.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] An auxiliary temperature control device for an energy storage cabinet is provided in the side wall of the energy storage cabinet, the auxiliary temperature control device comprises a lifting member and a deformation capsule, the lifting member can move up and down in the vertical direction, the deformation capsule is connected to the lifting member, the deformation capsule can be deformed as the lifting member is lifted and lowered, and in the direction from inside to outside, the cross section of the deformation capsule can be deformed to extend obliquely upward or obliquely downward.

[0007] Furthermore, the lifting member includes an outer lifting member and an inner lifting member, one side of the deformation capsule is connected to the outer lifting member, and the other side is connected to the inner lifting member.

[0008] Furthermore, when the outer lifting member moves upward relative to the inner lifting member, the cross-section of the deformation bag is deformed from the inside to the outside to extend obliquely upward; when the inner lifting member moves upward relative to the outer lifting member, the cross-section of the deformation bag is deformed from the inside to the outside to extend obliquely downward.

[0009] Furthermore, the auxiliary temperature control device includes a plurality of deformation capsules arranged in sequence from bottom to top, and the deformation capsule is a rectangular parallelepiped in an undeformed state, having two oppositely arranged first capsule walls, two oppositely arranged second capsule walls and two oppositely arranged third capsule walls; the deformation capsule is connected to the lifting member through the third capsule wall.

[0010] Furthermore, for the deformable capsule in a deformed state, the minimum angle K that can be achieved between the first capsule wall and the third capsule wall is 55°-65°, and the maximum ratio that can be achieved between the width W of the first capsule wall and the height H of the third capsule wall is 1.5-2.5:1.

[0011] Furthermore, the auxiliary temperature control device includes a lifting device, which is connected to the bottom end of the lifting member and is used to drive the lifting member to move up and down.

[0012] Furthermore, the lifting device includes an outer lifting device and an inner lifting device, wherein a first lifting rod of the outer lifting device is connected to a bottom end of the outer lifting member; and a second lifting rod of the inner lifting device is connected to a bottom end of the inner lifting member.

[0013] Furthermore, the deformation capsule has a capsule cavity, and the capsule cavity is filled with carbon dioxide gas.

[0014] An energy storage cabinet comprises a side wall and an auxiliary temperature control device of the energy storage cabinet; the side wall comprises an exterior panel and an interior panel, and the auxiliary temperature control device is arranged between the exterior panel and the interior panel.

[0015] Furthermore, the exterior panel is fitted with a third bladder wall of the deformation bladder, and the interior panel is fitted with another third bladder wall of the deformation bladder.

[0016] Compared with the prior art, the auxiliary temperature control device of the energy storage cabinet and the energy storage cabinet described in the utility model have the following advantages:

[0017] The auxiliary temperature control device of an energy storage cabinet and the energy storage cabinet described in the utility model are provided with the auxiliary temperature control device in the side wall of the energy storage cabinet, which is not only for blocking the heat transfer between the energy storage cabinet and the outside world, but also for accelerating or blocking the heat transfer by adjusting the two deformation forms of the deformation capsule so that the heat-conducting medium forms an overall flow cycle in the deformation capsule or a local cycle near the capsule wall under the action of "heat rise and cold drop". The heat (cold amount) of the external environment is used to supplement the energy storage cabinet, or the heat transfer between the energy storage cabinet and the outside world is blocked, so as to reduce the operation load of the air conditioner, which is beneficial to shortening the operation time of the air conditioner and reducing the energy consumption of the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0019] Figure 1 A schematic diagram of an energy storage cabinet according to an embodiment of the utility model;

[0020] Figure 2 An exploded view of a side wall of an energy storage cabinet according to an embodiment of the utility model;

[0021] Figure 3 This is a structural schematic diagram of an auxiliary temperature control device of an energy storage cabinet according to an embodiment of the utility model;

[0022] Figure 4 It is a side view of an auxiliary temperature control device of an energy storage cabinet according to an embodiment of the utility model;

[0023] Figure 5 A schematic diagram of a deformation capsule of an auxiliary temperature control device of an energy storage cabinet according to an embodiment of the utility model;

[0024] Figure 6 A schematic diagram of a side view of a deformation capsule of an auxiliary temperature control device of an energy storage cabinet according to an embodiment of the utility model (a view along the length direction of the deformation capsule);

[0025] Figure 7 It is a schematic diagram of an auxiliary temperature control device of an energy storage cabinet in a first state according to an embodiment of the utility model;

[0026] Figure 8 It is a schematic diagram of an auxiliary temperature control device of an energy storage cabinet in a second state according to an embodiment of the utility model.

[0027] Description of reference numerals:

[0028] 1. Side wall; 11. Exterior panel; 12. Interior panel; 2. Ceiling; 3. Auxiliary temperature control device; 4. Lifting member; 41. Outer lifting member; 42. Inner lifting member; 5. Deformation bag; 51. First bag wall; 52. Second bag wall; 53. Third bag wall; 54. Fixing part; 55. Bag cavity; 6. Lifting device; 61. Outer lifter; 611. First push rod; 62. Inner lifter; 621. Second push rod. DETAILED DESCRIPTION

[0029] The following will use the terms commonly used by those skilled in the art to convey the essence of their work to other technical personnel in the art to describe the utility model concepts of the present disclosure. However, these utility model concepts can be embodied in many different forms and should not be considered as limited to the embodiments described herein.

[0030] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The directional terms "inside" and "outside" involved in this application are all referenced to the energy storage cabinet, such as: Figure 7 , 8 The "inside" in the energy storage cabinet refers to the internal space of the energy storage cabinet, and the "outside" refers to the space environment outside the energy storage cabinet. At the same time, the "upper" and "lower" involved in this application are all attached. Figure 2 The coordinates of the deformation capsule 5 are taken as the reference, and the "length direction", "width direction" and "height direction" of the deformation capsule 5 involved in this application are all based on the attached Figure 5 As a reference, the corresponding "length, width, height" are also based on the attached Figure 5 As a benchmark.

[0031] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0032] In the prior art, taking an energy storage cabinet equipped with an air conditioner as an example, although the air conditioner can perform relatively good temperature regulation inside the relatively closed energy storage cabinet, the heat transfer between the energy storage cabinet and the outside world often causes the air conditioner to operate for a long time and consume high energy, which is not conducive to reducing the overall energy consumption of the energy storage cabinet.

[0033] In order to solve the problems in the prior art that the temperature control equipment (such as air conditioner) of the energy storage cabinet has a long operation time and high energy consumption due to the heat transfer between the energy storage cabinet and the outside world, this embodiment proposes an auxiliary temperature control device for the energy storage cabinet, such as the attached Figure 1-8 As shown, the auxiliary temperature control device 3 is arranged in the side wall 1 of the energy storage cabinet, and the auxiliary temperature control device 3 includes a lifting member 4 and a deformation capsule 5. The lifting member 4 can move up and down in the vertical direction. The deformation capsule 5 has a capsule cavity 55, and the capsule cavity 55 is filled with a heat-conducting medium. The deformation capsule 5 is connected to the lifting member 4. The deformation capsule 5 can be deformed as the lifting member 4 is lifted and lowered. In the direction from the inside to the outside, the cross-section of the deformation capsule 5 can be deformed to extend obliquely upward or obliquely downward.

[0034] The present application sets an auxiliary temperature control device 3 in the side wall 1 of the energy storage cabinet, not only to block the heat transfer between the energy storage cabinet and the outside world, but also to adjust the two deformation forms of the deformation capsule 5 so that the heat-conducting medium forms an overall flow cycle in the deformation capsule 5 or a local cycle near the capsule wall under the action of "heat rise and cold drop" to accelerate heat transfer or block heat transfer. By using the heat (cold) of the external environment to supplement the energy storage cabinet, or blocking the heat transfer between the energy storage cabinet and the outside world, the operating load of the air conditioner is reduced, which is beneficial to shorten the operation time of the air conditioner and reduce the energy consumption of the air conditioner. The specific introduction is as follows.

[0035] For the sake of simplicity in the following description, in the direction from inside to outside, the cross section of the deformation capsule 5 is tilted upward as the first state (see FIG. Figure 7 The cross section of the deformation capsule 5 is tilted downward as the second state (as shown in the attached figure). Figure 8 shown).

[0036] For energy storage cabinets with air conditioning and relatively closed interior, Figure 7 Take the first state in as an example, for the description of a single deformation capsule 5 and its capsule cavity 55.

[0037] Case 1: If the internal temperature of the energy storage cabinet is relatively higher than the external environment temperature, the heat-conducting medium near the inside of the capsule cavity 55 will rise due to the heat, and move along the upper first capsule wall 51 to the highest point near the outside, and the heat-conducting medium near the outside of the capsule cavity 55 will fall due to the cold, and move along the lower first capsule wall 51 to the lowest point near the inside, so that the heat-conducting medium forms an overall flow cycle in the deformation capsule 5 to promote heat transfer between the energy storage cabinet and the outside. While the energy storage cabinet uses the air conditioner to cool the inside, the cold energy of the external environment can be used to supplement the energy storage cabinet, which is beneficial to reduce the cooling load of the air conditioner, thereby shortening the air conditioner operation time and reducing the air conditioner energy consumption;

[0038] Case 2: If the temperature inside the energy storage cabinet is relatively lower than the external ambient temperature, the heat-conducting medium near the inner side of the cavity 55 will cool down, forming a local medium flow near the inner side of the cavity 55, and tending to gather at the lowest point near the inner side of the cavity 55; the heat-conducting medium near the outer side of the cavity 55 will rise due to the heat, forming a local medium flow near the outer side of the cavity 55, and tending to gather at the highest point near the outer side of the cavity 55; thereby forming a local medium flow on both sides of the deformation capsule 5, so that a certain medium flow dead zone is formed in the middle of the deformation capsule 5, forming a dead zone that blocks heat transfer, delaying the "erosion" of the low temperature inside the energy storage cabinet by the external high temperature, so that the inside of the energy storage cabinet can better maintain a low temperature, delaying the loss of cold inside the energy storage cabinet, which is beneficial to reducing the refrigeration load of the air conditioner, thereby shortening the operation time of the air conditioner and reducing the energy consumption of the air conditioner.

[0039] For the attached Figure 8 As for the second state, when the heat transfer medium is in the flow state of "heat rise and cold drop", there are also scenarios similar to those in Case 1 and Case 2, which will not be repeated in this article.

[0040] The lifting member 4 includes an outer lifting member 41 and an inner lifting member 42. One side of the deformation capsule 5 is connected to the outer lifting member 41, and the other side is connected to the inner lifting member 42. As the outer lifting member 41 moves upward or the inner lifting member 42 moves upward, the deformation capsule 5 can be driven to deform to form a first state or a second state. Preferably, the deformation capsule 5 is approximately in the shape of a cuboid in the undeformed state, and has two first capsule walls 51 arranged oppositely, two second capsule walls 52 arranged oppositely, and two third capsule walls 53 arranged oppositely. The first capsule wall 51 and the second capsule wall 52 are flexible walls with a certain deformation extension ability, and can be made of rubber materials in the prior art. As for the third capsule wall 53, since the deformation capsule 5 needs to be connected to the lifting member 4, the third capsule wall 53 can be a rigid wall plate, or a rigid plate can be embedded in the flexible wall, which can provide support for the deformation of the deformation capsule 5 while ensuring the connection strength. In the present application, the deformation capsule 5 is preferably connected to the lifting member 4 through the third capsule wall 53 , or a corresponding fixing portion 54 is provided at the third capsule wall 53 by utilizing the rigid support of the third capsule wall 53 for connection.

[0041] The outer lifting member 41 moves upward relative to the inner lifting member 42 (e.g., the outer lifting member 41 rises, while the inner lifting member 42 remains in place or descends to the original position), and the cross section of the deformation capsule 5 is deformed from the inside to the outside to extend obliquely upward. The inner lifting member 42 moves upward relative to the outer lifting member 41 (e.g., the inner lifting member 42 rises, while the outer lifting member 41 remains in place or descends to the original position), and the cross section of the deformation capsule 5 is deformed from the inside to the outside to extend obliquely downward. The original position can be understood as the initial position of lifting, which can be lifted upward from the initial position and can only be lowered to the initial position. Please refer to the attached Figure 2-4 Status shown.

[0042] In order to avoid ambiguity or misunderstanding, with respect to the relative movement between the outer lifting member 41 and the inner lifting member 42, in the present application, the rise of the outer lifting member 41 or the inner lifting member 42 must be accompanied by the lifting member on the other side remaining in place or descending to its original position, so that the auxiliary temperature control device 3 can only perform displacement adjustment and deformation adjustment at a relatively small height.

[0043] The outer lifting member 41 and the inner lifting member 42 can be a square frame, a flat plate, etc., or can be as shown in the attached figure. Figure 3 Multiple poles shown.

[0044] Regarding the connection between the deformation capsule 5 and the lifting member 4, the two sides of the deformation capsule 5 are respectively provided with fixing parts 54, and the fixing parts 54 and the lifting member 4 are connected by at least one of the following methods:

[0045] Form 1: If the lifting member 4 is in the form of a square frame, claws are set on both sides of the deformation bag 5 to be stuck in the corresponding square frame, or the two sides of the deformation bag 5 are placed in the square frame; or the square frame is provided with hanging holes, and corresponding hooks can be set on both sides of the deformation bag 5 to hang the deformation bag 5 on the square frame; at the same time, the third bag wall 53 can also be connected to the square frame by fasteners.

[0046] Form 2: If the lifting member 4 is in the form of a flat plate, adhesive layers can be provided on both sides of the deformation capsule 5 and bonded to the flat plate through the adhesive layer; at the same time, the third capsule wall 53 can also be connected to the flat plate through fasteners.

[0047] Form 3: If the lifting member 4 is attached Figure 3 The vertical pole form shown in the figure can adopt the claw clamping or hook mounting form in form 1, or it can be Figure 5 As shown, through openings are arranged on both sides of the deformation bag 5, and the vertical rods are arranged in the through openings.

[0048] The deformation capsule 5 can be a whole large capsule, but considering the flow efficiency of the heat-conducting medium, the preferred solution of the present application is that the auxiliary temperature control device 3 includes a plurality of deformation capsules 5 arranged in sequence from bottom to top. In combination with the connection between the deformation capsule 5 and the lifting member 4, the plurality of deformation capsules 5 can be arranged in an up-and-down stacked form and connected to the lifting member 4 one by one. Preferably, for the deformation capsule 5 in the deformed state, the minimum angle K that can be achieved between the first capsule wall 51 and the third capsule wall 53 is 55°-65°, and the maximum ratio that can be achieved between the width W of the first capsule wall 51 and the height H of the third capsule wall 53 is 1.5-2.5:1. Therefore, by limiting the ratio of the angle K and the width W to the height H, on the one hand, when the deformation capsule 5 reaches the final deformation state, the capsule cavity 55 (such as the attached Figure 6-7 As shown in the figure, a relatively narrow and moderately inclined space can be presented to facilitate the flow of the heat-conducting medium under the action of "heat rise and cold drop". On the other hand, excessive deformation of the deformation capsule 5 can be avoided to ensure the normal service state of the deformation capsule 5.

[0049] As a preferred embodiment of the present application, the heat-conducting medium filled in the capsule cavity 55 is carbon dioxide, such as carbon dioxide gas at room temperature and pressure, or carbon dioxide gas at other pressure states as needed. On the one hand, it can provide a better flow state, so that the auxiliary temperature control device 3 can provide a better heat transfer effect or heat blocking effect. On the other hand, in the event of an accident such as puncture or extreme high temperature damage to the deformation capsule 5, the leakage of carbon dioxide will not cause unnecessary pollution, and can also provide a certain inhibitory effect on the combustion of electrical components.

[0050] For the up and down movement of the lifting member 4, the auxiliary temperature control device 3 includes a lifting device 6, which has a lifting rod that can be lifted and lowered, and the lifting rod of the lifting device 6 is connected to the bottom end of the lifting member 4, and is used to drive the lifting member 4 to move up and down. The lifting device 6 can adopt conventional hydraulic or pneumatic lifting devices, mechanical lifting devices, spiral lifting devices, etc. in the prior art.

[0051] In order to facilitate the introduction of the inside and outside below, the lifting member 4 close to the external environment is recorded as the outer lifting member 41, and the lifting member 4 close to the inside of the energy storage cabinet is recorded as the inner lifting member 42. The lifting device 6 is also provided with corresponding lifting devices, which are respectively recorded as the outer lifting device 61 and the inner lifting device 62. The outer lifting device 61 is connected to the bottom end of the outer lifting member 41, and the inner lifting device 62 is connected to the bottom end of the inner lifting member 42.

[0052] Attach Figure 7 For example, the first push rod 611 of the outer lifter 61 is lifted upward, and drives the outer lifting member 41 to move upward, so that the deformation bag 5 is in the first state. At this time, the inner lifter 62 is in a non-lifted state.

[0053] Attach Figure 8 For example, the second push rod 621 of the inner lifter 62 is lifted upward, and drives the inner lifting member 42 to move upward, so that the deformation bag 5 is in the second state. At this time, the outer lifter 61 is in a non-lifted state.

[0054] In the utility model, any energy storage cabinet includes a side wall 1 and the auxiliary temperature control device 3 described in this embodiment, wherein the side wall 1 includes an exterior panel 11 and an interior panel 12, and the auxiliary temperature control device 3 is arranged between the exterior panel 11 and the interior panel 12. As a preferred embodiment of the present application, the third capsule wall 53 of the deformation capsule 5 can be fitted with the exterior panel 11 or the interior panel 12, that is, one third capsule wall 53 of the deformation capsule 5 is fitted with the exterior panel 11, and the other third capsule wall 53 is fitted with the interior panel 12. At the same time, the energy storage cabinet also includes an air conditioner to realize the main temperature control adjustment inside the energy storage cabinet. In addition, the energy storage cabinet can also be provided with a ceiling 2 or other conventional components of the energy storage cabinet. In view of the fact that other conventional components and internal electrical components of the energy storage cabinet can adopt the existing technology, they will not be described here.

[0055] In order to improve the intelligent operation level of the auxiliary temperature control device, the energy storage cabinet includes a central processing unit, an in-cabinet temperature sensor, and an ambient temperature sensor. The central processing unit is respectively connected to the in-cabinet temperature sensor and the ambient temperature sensor to obtain the in-cabinet temperature Tn of the energy storage cabinet and the outdoor ambient temperature Tw. The central processing unit is respectively connected to the air conditioner and the auxiliary temperature control device 3 to regulate the operation of the air conditioner and the auxiliary temperature control device 3.

[0056] The central processor is also connected to the battery module or battery management unit to obtain the operating status of the charging cabinet, such as battery charging and discharging status, battery idle status, etc. Since this is more common in existing battery energy storage technology, this application will not go into details. At the same time, the central processor has a clock module for obtaining information such as time, date, season, etc.

[0057] At the same time, based on the conventional air conditioning temperature control method used in the existing energy storage cabinet to adjust the temperature, the present application proposes an auxiliary temperature control method for the energy storage cabinet, including:

[0058] S1, real-time acquisition of cabinet temperature Tn and ambient temperature Tw;

[0059] S2, determine whether Tn-Tw> the first preset temperature; if so, proceed to step S3; if not, proceed to step S5;

[0060] The first preset temperature is 0° C. to 2° C., so as to determine the situation where Tn>Tw and there is a certain temperature difference between the two.

[0061] S3, judging whether Tn≥high temperature warning value; if so, driving the outer lifting member 41 to move upward relative to the inner lifting member 42, and returning to step S1; if not, proceeding to step S4;

[0062] Among them, the high temperature warning value is 45℃~50℃; when Tn>Tw, if Tn is too high, the outer lifting member 41 rises, so that the deformation capsule 5 is deformed into the first state, so that the heat-conducting medium forms an overall flow cycle in the deformation capsule 5 to promote the energy storage cabinet to dissipate heat to the outside, thereby using the relative coldness of the external environment to supplement the energy storage cabinet, which is beneficial to reduce the refrigeration load of the air conditioner, shorten the air conditioner operation time, and reduce the air conditioner energy consumption. It should be noted that when Tn is too high in step S3, the existing energy storage cabinet often uses conventional air conditioning temperature control methods for cooling, and this application also assumes that the air conditioner is in a cooling state.

[0063] S4, determining whether Tn ≤ low temperature warning value; if so, driving the inner lifting member 42 to move upward relative to the outer lifting member 41, and turning on the heating mode of the air conditioner; if not, returning to step S1;

[0064] Among them, the low temperature warning value is -15℃~-20℃; when Tn>Tw, if Tn is still too low, the inner lifting member 42 rises, so that the deformation capsule 5 is deformed to the second state, so that the heat-conducting medium forms only local medium flow on both sides of the deformation capsule 5, and forms a medium flow dead zone that blocks heat transfer in the middle of the deformation capsule 5, delaying the further "erosion" of the internal energy storage cabinet by the external low temperature, forming an effect similar to "insulation" on the internal energy storage cabinet, and avoiding heat dissipation from the internal energy storage cabinet to the outside as much as possible. At the same time, the heating mode of the air conditioner (or other heating equipment in the energy storage cabinet) is turned on to heat the inside of the energy storage cabinet to avoid the internal temperature of the energy storage cabinet being too low.

[0065] S5, determine whether Tn-Tw < the second preset temperature; if so, proceed to step S6; if not, the energy storage cabinet can adopt the conventional air conditioning temperature control method in the prior art, and return to step S1;

[0066] Among them, the first preset temperature is 0℃~-2℃, to judge the situation that Tn<Tw and there is a certain temperature difference between the two. It should be noted that if Tn=Tw or the temperature difference between the two is very small, there is no need to consider the regulation of the auxiliary temperature control device, and the conventional air conditioning temperature control method in the existing energy storage cabinet can be directly adopted. In view of the fact that it belongs to the main temperature control method of the energy storage cabinet, there are also many energy storage cabinet air conditioning temperature control technologies in the prior art. This application does not elaborate on the conventional air conditioning temperature control method in the energy storage cabinet, and does not take the main temperature control method of the energy storage cabinet as the utility model content of this application.

[0067] S6, determining whether Tn ≥ high temperature warning value; if so, driving the outer lifting member 41 to move upward relative to the inner lifting member 42, and turning on the cooling mode of the air conditioner; if not, proceeding to step S7;

[0068] Among them, the high temperature warning value is 45℃~50℃; when Tn<Tw, if Tn is still too high, the outer lifting member 41 rises, so that the deformation capsule 5 is deformed to the first state, so that the heat-conducting medium forms only local medium flow on both sides of the deformation capsule 5, and forms a medium flow dead zone that blocks heat transfer in the middle of the deformation capsule 5, delaying the further "erosion" of the internal energy storage cabinet by the external high temperature, forming a similar "insulation" effect on the internal energy storage cabinet, avoiding heat transfer from the outside to the internal energy storage cabinet as much as possible, and at the same time turning on the cooling mode of the air conditioner to cool the internal energy storage cabinet to avoid excessive temperature inside the energy storage cabinet.

[0069] S7, judging whether Tn≤low temperature warning value; if so, driving the inner lifting member 42 to move upward relative to the outer lifting member 41, and returning to step S1; if not, returning to step S1.

[0070] Among them, the low temperature warning value is -15℃~-20℃; when Tn<Tw, if Tn is too low, the inner lifting member 42 rises, so that the deformation capsule 5 is deformed into the second state, so that the heat-conducting medium forms an overall flow cycle in the deformation capsule 5 to promote heat transfer between the energy storage cabinet and the outside world, thereby using the relative heat of the external environment to supplement the energy storage cabinet, which is beneficial to reduce the heating load of the air conditioner (or other heating equipment), so as to shorten the air conditioner operation time and reduce the air conditioner energy consumption. It should be noted that when Tn is too low in step S7, the existing energy storage cabinet often uses conventional air conditioning temperature control methods (or other heating equipment) for heating, and this application also assumes that the air conditioner (or other heating equipment) is in a heating state.

[0071] Therefore, the auxiliary temperature control method of the energy storage cabinet proposed in the present application analyzes the conditions of Tn and Tw to adjust the movement state of the auxiliary temperature control device accordingly, so that the deformation capsule 5 is in a specific state, and can form an overall flow circulation or a local circulation near the capsule wall of the heat-conducting medium under the action of "heat rise and cold drop" as needed to accelerate heat transfer or block heat transfer. By utilizing the heat (cold) of the external environment to supplement the energy storage cabinet, or blocking the heat transfer between the energy storage cabinet and the outside world, the operating load of the air conditioner is reduced, which is beneficial to shorten the operating time of the air conditioner and reduce the energy consumption of the air conditioner.

[0072] In addition, step S4 comprises:

[0073] S41, determining whether Tn ≤ low temperature warning value; if so, driving the inner lifting member 42 to move upward relative to the outer lifting member 41, and turning on the heating mode of the air conditioner; if not, proceeding to step S42;

[0074] S42, determining whether the energy storage cabinet is in a charging state or a discharging state; if so, proceeding to step S43; if not, directly returning to step S1;

[0075] S43, determine whether it is winter at present; if so, directly return to step S1; if not, drive the outer lifting member 41 to move upward relative to the inner lifting member 42, and return to step S1.

[0076] Therefore, when Tn is in the safe temperature range between the low temperature warning value and the high temperature warning value, through the analysis of the charging and discharging state of the energy storage cabinet, when the energy storage cabinet is in the charging and discharging state, the batteries inside the energy storage cabinet tend to gradually generate heat, which is easy to increase the operating load of the energy storage cabinet air conditioner;

[0077] In this case, if it is not winter, the heat inside the energy storage cabinet may continue to accumulate. At the same time, because Tn>Tw, the outer lifting member 41 can be raised to make the deformation capsule 5 deform to the first state, so that the heat-conducting medium forms an overall flow cycle in the deformation capsule 5 to promote the heat dissipation of the energy storage cabinet to the outside, thereby using the relative coldness of the outside environment to supplement the energy storage cabinet, which is conducive to reducing the refrigeration load of the air conditioner, shortening the air conditioner operation time, reducing air conditioner energy consumption, and even turning off the air conditioner in certain temperature environments. Of course, if the energy storage cabinet is in a battery idle state, the current state is maintained, and the conventional air conditioning temperature control method in the existing energy storage cabinet can be used.

[0078] Meanwhile, step S7 includes:

[0079] S71, determine whether Tn≤low temperature warning value; if so, drive the inner lifting member 42 to move upward relative to the outer lifting member 41, and return to step S1; if not, proceed to step S72;

[0080] S72, determine whether the energy storage cabinet is in a charging state or a discharging state; if so, directly return to step S1; if not, proceed to step S73;

[0081] S73, determine whether it is summer; if so, drive the outer lifting member 41 to move upward relative to the inner lifting member 42, and return to step S1; if not, directly return to step S1.

[0082] Therefore, when Tn is in a safe temperature range between the low temperature warning value and the high temperature warning value, by analyzing the charging and discharging state of the energy storage cabinet, when the energy storage cabinet is in a battery idle state, the battery often does not generate heat; in this case, if it is summer, since Tn<Tw, the outer lifting member 41 can be raised to deform the deformation capsule 5 to the first state, so that the heat-conducting medium only forms a local medium flow on both sides of the deformation capsule 5, and a medium flow dead zone that blocks heat transfer is formed in the middle of the deformation capsule 5, delaying the heat dissipation of the external high temperature to the inside of the energy storage cabinet, and forming an effect similar to "insulation and cold preservation" on the inside of the energy storage cabinet, which is beneficial to reducing the refrigeration load of the air conditioner of the energy storage cabinet, so as to shorten the operation time of the air conditioner and reduce the energy consumption of the air conditioner.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An auxiliary temperature control device for an energy storage cabinet, characterized in that: The auxiliary temperature control device (3) is arranged in the side wall (1) of the energy storage cabinet, and comprises a lifting member (4) and a deformation capsule (5). The lifting member (4) can move up and down in the vertical direction, and the deformation capsule (5) is connected to the lifting member (4). The deformation capsule (5) can be deformed as the lifting member (4) is lifted and lowered, and in the direction from the inside to the outside, the cross section of the deformation capsule (5) can be deformed to extend obliquely upward or obliquely downward.

2. The auxiliary temperature control device of an energy storage cabinet according to claim 1, characterized in that: The lifting member (4) comprises an outer lifting member (41) and an inner lifting member (42); one side of the deformation capsule (5) is connected to the outer lifting member (41), and the other side is connected to the inner lifting member (42).

3. The auxiliary temperature control device of an energy storage cabinet according to claim 2, characterized in that: The outer lifting member (41) moves upward relative to the inner lifting member (42), and the cross section of the deformation capsule (5) is deformed from the inside to the outside to extend obliquely upward; the inner lifting member (42) moves upward relative to the outer lifting member (41), and the cross section of the deformation capsule (5) is deformed from the inside to the outside to extend obliquely downward.

4. The auxiliary temperature control device of an energy storage cabinet according to claim 1, characterized in that: The auxiliary temperature control device (3) comprises a plurality of deformation capsules (5) arranged in sequence from bottom to top; the deformation capsule (5) is a rectangular parallelepiped in an undeformed state, and has two first capsule walls (51) arranged oppositely, two second capsule walls (52) arranged oppositely, and two third capsule walls (53) arranged oppositely; the deformation capsule (5) is connected to the lifting member (4) via the third capsule wall (53).

5. The auxiliary temperature control device of the energy storage cabinet according to claim 4, characterized in that: For the deformable capsule (5) in a deformed state, the minimum angle K that can be achieved between the first capsule wall (51) and the third capsule wall (53) is 55°-65°, and the maximum ratio that can be achieved between the width W of the first capsule wall (51) and the height H of the third capsule wall (53) is 1.5-2.5:

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6. The auxiliary temperature control device of an energy storage cabinet according to claim 1, characterized in that: The auxiliary temperature control device (3) comprises a lifting device (6), and the lifting device (6) is connected to the bottom end of the lifting member (4) and is used to drive the lifting member (4) to move up and down.

7. The auxiliary temperature control device of an energy storage cabinet according to claim 6, characterized in that: The lifting device (6) comprises an outer lifting device (61) and an inner lifting device (62); a first lifting rod (611) of the outer lifting device (61) is connected to the bottom end of the outer lifting member (41); and a second lifting rod (621) of the inner lifting device (62) is connected to the bottom end of the inner lifting member (42).

8. The auxiliary temperature control device of an energy storage cabinet according to claim 1, characterized in that: The deformation capsule (5) has a capsule cavity (55), and the capsule cavity (55) is filled with carbon dioxide gas.

9. An energy storage cabinet, characterized in that: The energy storage cabinet comprises a side wall (1) and an auxiliary temperature control device of the energy storage cabinet according to any one of claims 1 to 8; the side wall (1) comprises an exterior panel (11) and an interior panel (12), and the auxiliary temperature control device (3) is arranged between the exterior panel (11) and the interior panel (12).

10. An energy storage cabinet according to claim 9, characterized in that: The exterior panel (11) is fitted with a third bladder wall (53) of the deformation bladder (5), and the interior panel (12) is fitted with another third bladder wall (53) of the deformation bladder (5).

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