Energy storage charging pile with storage battery

Abstract

The invention relates to the field of charging piles, and provides an energy storage charging pile with a storage battery, the energy storage charging pile comprises a charging pile body and a storage battery assembly, the storage battery assembly is connected with the charging pile body through a storage battery charging and discharging power supply, and the storage battery assembly is installed in the charging pile body; a temperature control assembly is arranged on a storage battery assembly, the temperature control assembly comprises a heat storage fixing device, and the heat storage fixing device can cool the storage battery assembly when the temperature of the storage battery assembly is high; and the heat exchanger can cool the storage battery assembly when the temperature of the storage battery assembly is relatively high and can heat the storage battery assembly when the temperature of the storage battery assembly is relatively low. Compared with the prior art, according to the energy storage charging pile with the storage battery, the temperature control assembly can conduct multi-stage adjustment on the temperature of the storage battery assembly, the temperature adjustment effect on the storage battery assembly is good, and the charging and discharging performance of the storage battery assembly is improved.

Description

Technical Field

[0001] The present invention relates to the field of charging piles, and in particular to an energy storage charging pile with a battery. Background Art

[0002] The function of a charging pile is similar to that of a gas pump in a gas station. It can be fixed on the ground or on a wall and installed in public buildings (public buildings, shopping malls, public parking lots, etc.) and residential parking lots or charging stations. It can charge various types of electric vehicles according to different voltage levels. The input end of the charging pile is directly connected to the AC power grid, and the output end is equipped with a charging plug for charging electric vehicles. Charging piles generally provide two charging methods: conventional charging and fast charging. People can use a specific charging card to swipe the card on the human-computer interaction interface provided by the charging pile to perform corresponding operations such as charging method, charging time, and cost data printing. The charging pile display can display data such as charging amount, cost, and charging time.

[0003] In addition, since electricity cannot be stored on a large scale at present, during low-peak charging periods, existing charging piles cannot effectively store excess electricity, which easily leads to waste of electricity.

[0004] The patent with application number CN202210499051.8 in the prior art discloses a peak-and-valley adjustable energy storage charging pile with a battery, comprising a charging pile body, and a battery pack for storing energy, wherein the battery pack is connected to the charging pile body through a battery charging and discharging power supply; and an installation box for installing the battery pack and the charging pile body; a temperature control component for adjusting the external temperature of the battery pack is provided inside the installation box; and an adjustment component for adjusting the charging pile body is provided on the top of the installation box. Although this patent integrates the battery pack and the charging pile body on the installation box, which is convenient for the installation of the battery pack and the charging pile body, and the battery pack can collect excess electric energy during low-peak charging and release it during peak charging to replenish electric energy for the charging pile body, thereby improving the utilization rate of electric energy and reducing the waste of electric energy, the temperature control component in the charging pile has a single temperature regulation method for the battery pack and has a poor temperature regulation effect on the battery pack; in addition, the safety of the energy storage charging pile is poor, and the direction of the fire cannot be determined after a fire occurs, and it can only be judged manually by firefighters, which is prone to misjudgment.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide an energy storage charging pile with a battery to solve the problem that the temperature control component in the charging pile in the prior art has a single temperature regulation means for the battery pack and has a poor temperature regulation effect on the battery pack.

[0007] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0008] An energy storage charging pile with a battery, the energy storage charging pile comprising a charging pile body and a battery assembly, the battery assembly being connected to the charging pile body via a battery charging and discharging power source, the battery assembly being installed inside the charging pile body; a temperature control assembly being arranged on the battery assembly, the temperature control assembly comprising: a heat storage fixing device, the heat storage fixing device being capable of cooling the battery assembly when the temperature of the battery assembly is high; and a heat exchanger, the heat exchanger being capable of cooling the battery assembly when the temperature of the battery assembly is high and being capable of heating the battery assembly when the temperature of the battery assembly is low.

[0009] In the energy storage charging pile with a battery described in the present invention, the temperature control component can perform multi-stage regulation on the temperature of the battery component, has a good temperature regulation effect on the battery component, and improves the charging and discharging performance of the battery component.

[0010] Furthermore, the heat storage fixing device is arranged below the battery assembly and the heat exchanger.

[0011] Furthermore, a first installation area is provided in the charging pile body, and the battery assembly and the temperature control assembly are installed in the first installation area.

[0012] Furthermore, the heat storage fixing device includes a fixing frame, which is arranged below the battery assembly, and is provided with a plurality of fixing holes, which match the shape of the battery and are used to fix the battery; a plurality of heat storage sheets are arranged on the fixing frame; the heat storage sheets are fixed inside the fixing holes, and the heat storage sheets are arranged around the battery to store heat for the corresponding battery.

[0013] Furthermore, the heat exchanger includes a heat exchange membrane, a first heat exchange medium flow channel and a second heat exchange medium flow channel. The heat exchange membrane is arranged in plurality, and the plurality of heat exchange membranes are arranged between the first heat exchange medium flow channel and the second heat exchange medium flow channel, and a plurality of battery cells are arranged between two adjacent heat exchange membranes.

[0014] Furthermore, a liquid inlet is arranged at one end of the first heat exchange medium flow channel, a liquid outlet is arranged at one end of the second heat exchange medium flow channel away from the liquid inlet, and the liquid inlet is connected to the heat pump system.

[0015] Furthermore, a flow regulating valve is provided at the inlet of each heat exchange membrane, and the flow regulating valve is used to control the flow size and on-off of the refrigerant in the corresponding heat exchange membrane.

[0016] Furthermore, a temperature sensor is arranged in the battery assembly, and the temperature sensor is used to monitor the temperature inside the battery assembly.

[0017] Furthermore, the heat exchange membrane is arranged in a straight line.

[0018] Furthermore, the heat exchange medium in the heat exchange membrane adopts the following formula: 20-60% glycol, 0.05-0.5% pipemidic acid, 0.02-0.2% pyridoxine, 0.01-0.2% cinnamaldehyde, 0.15-0.2% polyoxyethylene stearate, 3.5-4.5% nano zirconium dioxide, 0.001-0.01% silicone defoaming agent, and the balance is deionized water with a conductivity of less than 0.5 μS / cm.

[0019] Compared with the prior art, the energy storage charging pile with a battery described in the present invention has the following beneficial effects:

[0020] 1. The energy storage charging pile with a battery described in the present invention has a battery assembly installed inside the charging pile body. The battery assembly can collect excess electric energy during low-peak charging and release it during peak charging to supplement electric energy for the charging pile body, thereby improving the utilization rate of electric energy and reducing the waste of electric energy.

[0021] 2. In the energy storage charging pile with a battery described in the present invention, the temperature control component can adjust the temperature of the battery component in multiple stages, which has a good temperature regulation effect on the battery component and improves the charging and discharging performance of the battery component. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of an energy storage charging pile with a battery according to an embodiment of the present invention;

[0023] Figure 2 This is a front view structural schematic diagram of an energy storage charging pile with a battery according to an embodiment of the present invention;

[0024] Figure 3 This is one of the exploded structural schematic diagrams of a temperature control component and a battery component of an energy storage charging pile with a battery according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the bottom view of the structure of a heat storage fixing device of an energy storage charging pile with a battery according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of a top view of the structure of a first mounting plate of an energy storage charging pile with a battery according to an embodiment of the present invention;

[0027] Figure 6This is a schematic structural diagram of a retractable component of an energy storage charging pile with a battery according to an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of a top view of a horizontal substrate of an energy storage charging pile with a battery according to an embodiment of the present invention;

[0029] Figure 8 It is a schematic diagram of a top view of a balance sensing device of an energy storage charging pile with a battery according to an embodiment of the present invention;

[0030] Fig. 9 It is a schematic cross-sectional structural diagram of a balance sensing device of an energy storage charging pile with a battery according to an embodiment of the present invention;

[0031] Fig.10 This is a second schematic diagram of the explosion structure of a temperature control component and a battery component of an energy storage charging pile with a battery according to an embodiment of the present invention;

[0032] Fig.11 It is a schematic diagram of the three-dimensional structure of a heating device of an energy storage charging pile with a battery according to an embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 100, energy storage charging pile; 1, charging pile body; 101, first installation area; 102, second installation area; 103, third installation area; 104, first installation plate; 1041, first installation hole; 105, second installation plate; 2, battery assembly; 3, temperature control assembly; 31, heat storage fixing device; 311, fixing frame; 312, heat storage sheet; 32, heat exchanger; 321, heat exchange membrane; 322, first heat exchange medium flow channel; 3221, Liquid inlet; 323, second heat exchange medium flow channel; 3231, liquid outlet; 33, heating device; 331, heating plate; 332, heating plate; 333, heating drive device; 334, telescopic column; 34, fan assembly; 62, telescopic assembly; 63, horizontal base plate; 631, clamping hole; 64, balance sensing device; 641, center ball; 642, plane; 643, sliding resistor; 6431, sliding part; 6432, stationary part. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The descriptions of "first", "second", etc. mentioned in the embodiments of the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0037] Example 1

[0038] In the prior art, the temperature control component 3 in the charging pile has a single temperature regulation method for the battery pack and has a poor temperature regulation effect on the battery pack; in addition, the safety of the energy storage charging pile 100 is poor. After a fire occurs, the direction of the fire cannot be determined and can only be determined by firefighters, which is prone to misjudgment.

[0039] In order to solve the above problems, this embodiment proposes an energy storage charging pile 100 with a battery, such as Figures 1 to 9 As shown, the energy storage charging pile 100 includes a charging pile body 1 and a battery assembly 2, the battery assembly 2 is connected to the charging pile body 1 through a battery charging and discharging power supply, and the battery assembly 2 is installed inside the charging pile body 1; a temperature control assembly 3 is arranged on the battery assembly 2, and the temperature control assembly 3 can cool down the battery assembly 2 when the temperature of the battery assembly 2 is high; and heat up the battery assembly 2 when the temperature of the battery assembly 2 is low; the temperature control assembly 3 includes: a heat storage fixing device 31, the heat storage fixing device 31 can cool down the battery assembly 2 when the temperature of the battery assembly 2 is high; a heat exchanger 32, the heat exchanger 32 can cool down the battery assembly 2 when the temperature of the battery assembly 2 is high and can heat up the battery assembly 2 when the temperature of the battery assembly 2 is low.

[0040] In the energy storage charging pile with a battery described in this embodiment, the heat storage fixing device 31 and the heat exchanger 32 work together to adjust the temperature of the battery assembly 2 in multiple stages, which has a good temperature regulation effect on the battery assembly 2 and improves the charging and discharging performance of the battery assembly 2.

[0041] Specifically, the heat exchanger 32 is communicated with the heat pump system.

[0042] Specifically, the heat storage fixing device 31 is arranged below the battery assembly 2 and the heat exchanger 32 .

[0043] Specifically, a first installation area 101 is provided in the charging pile body 1 , and the battery assembly 2 and the temperature control assembly 3 are installed in the first installation area 101 .

[0044] Specifically, the heat storage fixing device 31 includes a fixing frame 311, which is arranged below the battery assembly 2. A plurality of fixing holes are arranged on the fixing frame 311, and the fixing holes match the shape of the battery, and the fixing holes are used to fix the battery; a plurality of heat storage sheets 312 are arranged on the fixing frame 311; the heat storage sheets 312 are fixed inside the fixing holes, and the heat storage sheets 312 are arranged around the battery to store heat for the corresponding battery.

[0045] Specifically, the heat exchanger 32 includes a heat exchange membrane 321, a first heat exchange medium flow channel 322 and a second heat exchange medium flow channel 323. The heat exchange membrane 321 is arranged in plurality, and the plurality of heat exchange membranes 321 are arranged between the first heat exchange medium flow channel 322 and the second heat exchange medium flow channel 323, and a plurality of battery cells are arranged between two adjacent heat exchange membranes 321, so that both sides of each battery cell are in contact with the heat exchange membrane 321.

[0046] Specifically, a liquid inlet 3221 is provided at one end of the first heat exchange medium flow channel 322, and a liquid outlet 3231 is provided at one end of the second heat exchange medium flow channel 323 away from the liquid inlet 3221, and the liquid inlet 3221 is connected to a heat pump system (not shown).

[0047] Specifically, a flow regulating valve is provided at the inlet of each heat exchange membrane 321 , and the flow regulating valve can control the flow size and on-off of the refrigerant in the heat exchange membrane 321 .

[0048] A group of battery cells between two adjacent heat exchange membranes 321 forms a battery unit. When the battery unit in the battery assembly 2 needs to be heated or cooled, the temperature of the battery unit is adjusted by controlling the opening and closing or flow rate of the refrigerant in the heat exchange membrane 321.

[0049] Specifically, a temperature sensor is provided in the battery assembly 2, and the temperature sensor is used to monitor the temperature inside the battery assembly 2. The control unit receives the detection result of the temperature sensor and sends a flow regulation instruction to the flow regulating component according to the detection result.

[0050] Specifically, the heat exchange membrane 321 is arranged in a straight line.

[0051] Specifically, the heat exchange medium in the heat exchange membrane 321 is not specifically limited. The heat exchange medium in the heat exchange membrane 321 can be water, a refrigerant, etc., but is not limited thereto.

[0052] More specifically, in this embodiment, the heat exchange medium in the heat exchange membrane 321 adopts the following formula: 20-60% glycol, 0.05-0.5% pipemidic acid, 0.02-0.2% pyridoxine, 0.01-0.2% cinnamaldehyde, 0.03-0.1% polyoxyethylene stearate, 2.5-5.5% nano zirconium dioxide, 0.001-0.01% silicone defoamer, and the balance is deionized water with a conductivity of less than 0.5 μS / cm. Among them, polyoxyethylene stearate is a non-ionic surfactant that can remove free ions in the heat exchange medium, so that the coolant is not ionized, has high stability, and can play a good heat dissipation role.

[0053] The heat exchange medium in the heat exchange membrane 321 adopts the above formula, which can achieve a better heat exchange effect.

[0054] Specifically, a first mounting plate 104 and a second mounting plate 105 are arranged in the charging pile body 1, and the first mounting plate 104 and the second mounting plate 105 divide the interior of the charging pile body 1 from bottom to top into a second mounting area 102, a first mounting area 101 and a third mounting area 103.

[0055] Specifically, the temperature control component 3 further includes a heating device 33, and the heating device 33 can heat the battery assembly 2 when the temperature of the battery assembly 2 is low.

[0056] Specifically, the heating device 33 includes a heating plate 331, which is arranged above the battery assembly 2, and a plurality of heating plates 332 are arranged on the heating plate 331; the heating plates 332 are fixed above the battery to heat and increase the temperature of the corresponding battery.

[0057] Specifically, the heating device 33 is installed above the heat storage fixing device 31 .

[0058] Specifically, a heating driving device 333 is provided on the heating device 33 , and the heating device 33 is connected to the heating driving device 333 . The heating driving device 333 can drive the heating device 33 to move up and down.

[0059] When the battery assembly 2 needs to be cooled, the heating drive device 333 is used to drive the heating device 33 to move upward, so that other devices can cool the battery assembly 2; when the battery assembly 2 needs to be heated, the heating drive device 333 is used to drive the heating device 33 to move downward, and the heating plate 332 is set in contact with the battery.

[0060] Specifically, the heating driving device 333 is disposed at a central position above the heating plate 331 .

[0061] Specifically, a telescopic column 334 is provided below the heating plate 331 .

[0062] Specifically, Figure 2 As shown, the temperature control component 3 also includes a fan component 34, and the fan component 34 can blow air to cool down the battery component 2 when the temperature of the battery component 2 is high.

[0063] Specifically, Figure 2 As shown, the fan assembly 34 is arranged on the left and right sides of the first installation area 101 .

[0064] Specifically, Figure 2 and Figure 4 As shown, a balance sensing device 64 is provided at the center position below the heat storage fixing device 31, as shown in FIG. Figure 1 , Figure 2 and Figure 6 As shown, a plurality of retractable components 62 are disposed below the first mounting plate 104 , and the balance sensing device 64 is electrically connected to the retractable components 62 .

[0065] The balance sensing device 64 can adjust the current size that triggers the telescopic component 62 to extend or retract the telescopic component 62; Figure 1 , Figure 2 and Figure 7 As shown, a horizontal substrate 63 is installed at the center of the second installation area 102. Figure 7 As shown, a plurality of latch holes 631 are provided on the horizontal base plate 63 , and the latch holes 631 cooperate with the retractable component 62 .

[0066] Under normal conditions, the heat storage fixing device 31 is in a balanced state, and the retractable components 62 are all in a retracted state; in a fire state, the heat exchange membrane 321 that first encounters the fire will be burned, and the heat exchange medium in the heat exchange membrane 321 will flow out. At this time, the heat storage fixing device 31 will be unbalanced, and the balance sensing device 64 can adjust the current that triggers the extension and retraction of the retractable component 62 to adjust the extension or retraction of the retractable component 62; the retractable component 62 in the direction corresponding to the heat exchange membrane 321 that first encounters the fire will extend and engage with the card hole 631. When it is detected that the retractable component 62 in the direction corresponding to the heat exchange membrane 321 that first encounters the fire extends and engages with the card hole 631, all the retractable components 62 are powered off and no longer change their movement state. The direction of the retractable component 62 engaged with the card hole 631 is the direction of the fire.

[0067] More specifically, the retractable component 62 is configured to be composed of multiple sections, and the circuits for triggering the retraction of each section are connected in parallel.

[0068] like Figure 5 As shown, a first mounting hole 1041 is provided at the center of the first mounting plate 104 , and the balance sensing device 64 is mounted at the center of the first mounting plate 104 through the first mounting hole 1041 .

[0069] Specifically, Figure 8 and Fig. 9 As shown, the balance sensing device 64 includes a central ball 641 located at the center of the bottom of the buffer substrate 61, a plane 642 supporting the central ball 641, and a sliding resistor 643 arranged along the line connecting the central ball 641 and the telescopic component 62 in the corresponding direction; the sliding resistor 643 includes a sliding part 6431 and a stationary part 6432, the sliding part 6431 is sleeved on the outer side of the stationary part 6432, and the outer end of the sliding part 6431 is connected to the central ball 641; the number of the sliding resistor 643, the telescopic component 62, and the card hole 631 is the same, and the sliding resistor 643 is connected in series with the circuit that triggers the telescopic component 62 to telescope. The setting of the balance sensing device 64 can quickly and accurately control the magnitude of the current of the telescopic component 62.

[0070] When a fire occurs, the heat exchange membrane 321 will be burned and the heat exchange medium inside the heat exchange membrane 321 will flow out. On the one hand, the outflow of the heat exchange medium will prevent combustion; on the other hand, the outflow of the heat exchange medium will cause the heat storage fixing device 31 to be unbalanced. When the heat storage fixing device 31 is detected to be unbalanced, the balance sensing device 64 controls the central ball 641 to tilt and slide to one side, pushing the sliding part 6431 of the sliding resistor 643 on the tilted side to slide toward the static part 6432, so that the resistance becomes smaller; the sliding part 6431 of the sliding resistor 643 on the other side slides toward the outside of the static part 6432, so that the resistance becomes larger; thereby, the current passing through the corresponding retractable component 62 becomes larger and smaller, causing the retractable component 62 on the tilted side to extend and the retractable component 62 on the other side to shorten.

[0071] like Figure 1 , Figure 7 and Figure 8 In the embodiment, the number of the sliding resistor 643, the retractable component 62, and the card hole 631 are all set to five.

[0072] Specifically, a control module (not shown) is arranged inside the charging pile body 1 , and the control module is connected to the heat storage fixing device 31 , the heat exchanger 32 , the heating device 33 , the fan assembly 34 , the balance sensing device 64 , and the retractable assembly 62 .

[0073] It should be noted that, in this embodiment, a backup power supply is provided inside the charging pile body 1 .

[0074] Compared with the prior art, the energy storage charging pile with a battery described in this embodiment interconnects the heat storage fixing device 31, the heat exchanger 32, the heating device 33, the fan assembly 34, the balance sensing device 64 and the retractable assembly 62, with novel conception and ingenious design. On the one hand, it can realize multi-stage adjustment of the temperature of the battery assembly 2, and has a better temperature adjustment effect on the battery assembly 2, thereby improving the charging and discharging performance of the battery assembly 2; and can reduce unnecessary energy consumption; on the other hand, it improves the safety and reliability of the energy storage charging pile 100, and can accurately determine the direction of the fire after a fire occurs, thereby assisting firefighters in determining the cause of the fire, thereby enhancing the brand image of the charging pile company and reducing the economic losses of the charging pile company.

[0075] Example 2

[0076] This embodiment provides a control method for an energy storage charging pile with a battery. The control method for the energy storage charging pile with a battery uses an energy storage charging pile 100 with a battery as described in Example 1. The control method for the energy storage charging pile with a battery specifically includes the following steps:

[0077] S1, start charging;

[0078] S2, real-time detection of the temperature T of the battery assembly 2;

[0079] S3: Determine whether the temperature T of the battery assembly 2 is greater than or equal to the fire threshold temperature T 火 ; If yes, go to step S4; if no, go to step S5;

[0080] S4, shutdown alarm;

[0081] S5: Determine whether the temperature T of the battery assembly 2 is greater than or equal to the high temperature threshold T 高 ; If yes, go to step S6; if no, go to step S7;

[0082] S6, the temperature control component 3 enters the cooling mode;

[0083] S7: Determine whether the temperature T of the battery assembly 2 is less than the low temperature threshold T 低 ; If yes, go to step S8; if no, return to step S2;

[0084] S8, the temperature control component 3 enters the heating mode.

[0085] In the control method of the energy storage charging pile with a battery described in this embodiment, steps S1 to S8 are interrelated and work together. After charging is started in step S1, steps S2 and S3 are used to detect in real time whether the temperature T of the battery assembly 2 is greater than the fire threshold temperature T 火 To determine whether a fire occurs, if so, proceed to step S4, stop the machine and alarm, thereby improving the safety and reliability of the energy storage charging pile 100; if not, proceed to steps S5 to S8, according to the temperature T of the battery assembly 2 and the high temperature threshold T 高 , low temperature threshold T 低 The system can enter different temperature adjustment modes according to the relationship between the temperature and the environment, which can save energy and reduce emissions while ensuring precise temperature adjustment effects.

[0086] Specifically, step S1 includes the following steps:

[0087] S11, start charging;

[0088] S12, the balance sensing device 64 determines whether the heat storage fixing device 31 is unbalanced, if so, enter S12; if not, enter S2;

[0089] S13, the balance sensing device 64 adjusts the telescopic component 62 to extend or retract;

[0090] S14, when it is detected that the retractable component 62 in the direction corresponding to the heat exchange membrane 321 that first encounters the fire is extended and engaged with the engaging hole 631, all the retractable components 62 are powered off and the process goes to step S2.

[0091] In the control method of a power storage charging pile with a battery described in this embodiment, steps S11 to S14 are interrelated. After receiving the instruction to start charging, step S12 first determines whether the heat storage fixing device 31 is unbalanced, so as to make a preliminary judgment on whether a fire has occurred. If the heat storage fixing device 31 is unbalanced, steps S13 and S14 are used to record the direction of the fire, that is, the direction of the retractable component 62 where the retractable component 62 is engaged with the card hole 631. At this time, considering other factors, such as impacts that may also cause the heat storage fixing device 31 to be unbalanced, there is no immediate shutdown alarm to avoid misjudgment. Then, steps S2 and S3 are used to detect in real time whether the temperature T of the battery assembly 2 is ≥ the fire threshold temperature T 火 To further determine whether a fire occurs, if so, proceed to step S4, stop the machine and alarm, these steps greatly improve the safety and reliability of the energy storage charging pile 100; if not, go through steps S5 to S8, according to the temperature T of the battery assembly 2 and the high temperature threshold T 高 , low temperature threshold T 低 The system can enter different temperature adjustment modes according to the relationship between the temperature and the environment, which can save energy and reduce emissions while ensuring precise temperature adjustment effects.

[0092] Specifically, step S6 includes the following steps:

[0093] S61, determining whether the temperature T of the battery assembly 2 is less than the first threshold temperature T1; if so, proceeding to step S62; if not, proceeding to step S63;

[0094] S62, the temperature control component 3 enters the first level cooling mode;

[0095] S63, determining whether the temperature T of the battery assembly 2 is less than the second threshold temperature T2; if so, proceeding to step S64; if not, proceeding to step S65;

[0096] S64, the temperature control component 3 enters the secondary cooling mode;

[0097] S65, the temperature control component 3 enters the third-level cooling mode.

[0098] Specifically, step S62 includes the following steps: controlling the heat exchanger 32 to perform a refrigeration operation, and the heat exchange medium entering the heat exchange membrane 321 is a low-temperature heat exchange medium.

[0099] Specifically, step S64 includes the following steps: controlling the heat exchanger 32 to perform cooling operation, and the heat exchange medium entering the heat exchange membrane 321 is a low-temperature heat exchange medium; and controlling the heat storage fixing device 31 to start heat storage and cooling of the battery assembly 2.

[0100] Specifically, step S65 includes the following steps: controlling the heat exchanger 32 to perform a cooling operation, and the heat exchange medium entering the heat exchange membrane 321 is a low-temperature heat exchange medium; at the same time, controlling the heat storage fixing device 31 to start storing heat and cooling the battery assembly 2; controlling the heating drive device 333 to drive the heating device 33 to move upward, and controlling the fan assembly 34 to start blowing air to cool the battery assembly 2.

[0101] Steps S61 to S65 divide the high temperature state of the battery assembly 2 into different temperature ranges, and perform different processing methods in different high temperature ranges, so that the temperature control component 3 can perform multi-level adjustment on the high temperature of the battery assembly 2, thereby facilitating the battery assembly 2 to quickly and promptly return to normal temperature, thereby improving the charging and discharging performance of the battery assembly 2; in addition, it can also save energy and reduce emissions.

[0102] In a normal state, the heating device 33 is arranged in close contact with the heat storage fixing device 31, and the heat storage sheet 312 and the heating sheet 332 are arranged in close contact with the storage battery. After the heating driving device 333 drives the heating device 33 to move upward, the heating sheet 332 is separated from the storage battery.

[0103] Specifically, step S8 includes the following steps:

[0104] S81, determining whether the temperature T of the battery assembly 2 is greater than or equal to the third threshold temperature T3; if so, proceeding to step S82; if not, proceeding to step S83;

[0105] S82, the temperature control component 3 enters the first level heating mode;

[0106] S83, the temperature control component 3 enters the secondary heating mode.

[0107] Specifically, step S82 includes the following steps: controlling the heat exchanger 32 to perform a heating operation, and the heat exchange medium entering the heat exchange membrane 321 is a high-temperature heat exchange medium.

[0108] Specifically, step S83 includes the following steps: controlling the heat exchanger 32 to perform a heating operation, and the heat exchange medium entering the heat exchange membrane 321 is a high-temperature heat exchange medium; and controlling the heating device 33 to start heating the battery assembly 2 at the same time.

[0109] Steps S81 to S83 divide the low temperature state of the battery assembly 2 into different temperature ranges, and perform different processing methods in different low temperature ranges, so that the temperature control component 3 can perform multi-level adjustment on the low temperature of the battery assembly 2, thereby facilitating the battery assembly 2 to quickly and promptly return to normal temperature, thereby improving the charging and discharging performance of the battery assembly 2; in addition, it can also save energy and reduce emissions.

[0110] Specifically, during the execution of steps S62, S64, S65, S82 and S83, the process returns to step S2 in real time.

[0111] Specifically, the fire threshold temperature T 火 , the second threshold temperature T2, the first threshold temperature T1> high temperature threshold T 高 , low temperature threshold T 低 , and the third threshold temperature T3 are both system preset values ​​and are not specifically limited.

[0112] Specifically, the fire threshold temperature T 火 >Second threshold temperature T2 >First threshold temperature T1 >High temperature threshold T 高 >Low temperature threshold T 低 >Third threshold temperature T3.

[0113] Compared with the prior art, the energy storage charging pile with a battery and the control method described in this embodiment, the energy storage charging pile with a battery 100 and the control method of the energy storage charging pile with a battery are interconnected, and the heat storage fixing device 31, the heat exchanger 32, the heating device 33, the fan assembly 34, the balance sensing device 64, the retractable assembly 62 and the horizontal substrate 63 are interconnected, with novel conception and ingenious design. On the one hand, it can realize multi-stage adjustment of the temperature of the battery assembly 2, and has a good temperature adjustment effect on the battery assembly 2, thereby improving the charging and discharging performance of the battery assembly 2; and can reduce unnecessary energy consumption; on the other hand, it improves the safety and reliability of the energy storage charging pile 100, and can accurately determine the direction of the fire after a fire occurs, thereby assisting firefighters in determining the cause of the fire, thereby enhancing the brand image of the charging pile company and reducing the economic losses of the charging pile company.

[0114] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. An energy storage charging pile with a battery, characterized in that: The energy storage charging pile (100) comprises a charging pile body (1) and a battery assembly (2), wherein the battery assembly (2) is connected to the charging pile body (1) via a battery charging and discharging power source, and the battery assembly (2) is installed inside the charging pile body (1); a temperature control assembly (3) is arranged on the battery assembly (2), and the temperature control assembly (3) comprises: a heat storage fixing device (31), wherein the heat storage fixing device (31) is capable of cooling the battery assembly (2) when the temperature of the battery assembly (2) is high; and a heat exchanger (32), wherein the heat exchanger (32) is capable of cooling the battery assembly (2) when the temperature of the battery assembly (2) is high and of heating the battery assembly (2) when the temperature of the battery assembly (2) is low.

2. The energy storage charging pile with a battery according to claim 1, characterized in that: The heat storage fixing device (31) is arranged below the battery assembly (2) and the heat exchanger (32).

3. The energy storage charging pile with a battery according to claim 2, characterized in that: A first installation area (101) is provided in the charging pile body (1), and the battery assembly (2) and the temperature control assembly (3) are installed in the first installation area (101).

4. The energy storage charging pile with a battery according to claim 1, characterized in that: The heat storage fixing device (31) comprises a fixing frame (311), the fixing frame (311) is arranged below the battery assembly (2), a plurality of fixing holes are arranged on the fixing frame (311), the fixing holes match the shape of the battery, and the fixing holes are used to fix the battery; a plurality of heat storage sheets (312) are arranged on the fixing frame (311); the heat storage sheets (312) are fixed inside the fixing holes, and the heat storage sheets (312) are arranged around the battery and are used to store heat for the corresponding battery.

5. The energy storage charging pile with a battery according to claim 1, characterized in that: The heat exchanger (32) comprises a heat exchange membrane (321), a first heat exchange medium flow channel (322) and a second heat exchange medium flow channel (323); the heat exchange membrane (321) is provided in plurality, the plurality of heat exchange membranes (321) are provided between the first heat exchange medium flow channel (322) and the second heat exchange medium flow channel (323), and a plurality of storage battery cells are provided between two adjacent heat exchange membranes (321).

6. The energy storage charging pile with a battery according to claim 5, characterized in that: A liquid inlet (3221) is provided at one end of the first heat exchange medium flow channel (322), and a liquid outlet (3231) is provided at one end of the second heat exchange medium flow channel (323) away from the liquid inlet (3221), and the liquid inlet (3221) is connected to the heat pump system.

7. The energy storage charging pile with a battery according to claim 6, characterized in that: A flow regulating valve is provided at the inlet of each heat exchange membrane (321), and the flow regulating valve is used to control the flow size and on-off of the refrigerant in the corresponding heat exchange membrane (321).

8. The energy storage charging pile with a battery according to claim 7, characterized in that: A temperature sensor is arranged inside the battery assembly (2), and the temperature sensor is used to monitor the temperature inside the battery assembly (2).

9. The energy storage charging pile with a battery according to claim 5, characterized in that: The heat exchange film (321) is arranged in a straight line.

10. The energy storage charging pile with a battery according to claim 5, characterized in that: The heat exchange medium in the heat exchange membrane (321) adopts the following formula: 20-60% of diol, 0.05-0.5% of pipemidic acid, 0.02-0.2% of pyridoxine, 0.01-0.2% of cinnamaldehyde, 0.15-0.2% of polyoxyethylene stearate, 3.5-4.5% of nano zirconium dioxide, 0.001-0.01% of organosilicon defoaming agent, and the balance is deionized water with an electrical conductivity of less than 0.5 μS / cm.

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