Control method of charging pile

Abstract

The invention relates to the field of charging piles, and provides a charging pile control method comprising the following steps: S1, starting charging; s2, detecting the temperature T of the storage battery assembly in real time; s3, whether the temperature T of the storage battery assembly is larger than or equal to the fire threshold temperature Tfire or not is judged; if yes, entering the step S4; if not, entering the step S5; s4, stopping and alarming; s5, whether the temperature T of the storage battery assembly is larger than or equal to the high-temperature threshold value Thigh is judged; if yes, entering step S6; if not, entering the step S7; s6, the temperature control assembly enters a cooling mode; s7, judging whether the temperature T of the storage battery assembly is lower than the low-temperature threshold value Tlow or not; if yes, entering the step S8; if not, returning to the step S2; and S8, the temperature control assembly enters a heating mode. According to the control method of the charging pile, different temperature adjusting modes can be entered according to different temperatures for precise temperature adjustment, fire alarm can also be carried out, and the safety is high.

Description

Technical Field

[0001] The present invention relates to the field of charging piles, and in particular to a charging pile and a control method thereof. 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 mode interface provided by the charging pile to use the corresponding 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 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 charging pile does not have a corresponding control method to enter different temperature adjustment modes according to different temperatures for precise temperature adjustment, nor can it perform fire alarms, and has poor safety. Furthermore, the temperature control component has a single means of temperature adjustment for the battery pack and has a poor temperature adjustment effect on the battery pack. In addition, after a fire occurs in the charging pile, it is impossible to determine the direction of the fire, 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 propose a charging pile and a control method to solve the problem that the charging pile in the prior art has no corresponding control method to enter different temperature adjustment modes according to different temperatures for precise temperature adjustment, and cannot perform fire alarm, resulting in poor safety.

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

[0008] A control method for a charging pile, wherein a battery assembly is installed inside a charging pile body, and a temperature control assembly is provided on the battery assembly. The control method for the charging pile specifically comprises the following steps:

[0009] S1, start charging;

[0010] S2, real-time detection of the temperature T of the battery assembly;

[0011] S3: Determine whether the temperature T of the battery assembly is greater than or equal to the fire threshold temperature T 火 ; If yes, go to step S4; if no, go to step S5;

[0012] S4, shutdown alarm;

[0013] S5: Determine whether the temperature T of the battery assembly is greater than or equal to the high temperature threshold T 高 ; If yes, go to step S6; if no, go to step S7;

[0014] S6, the temperature control component enters the cooling mode;

[0015] S7: Determine whether the temperature T of the battery assembly is less than the low temperature threshold T 低 ; If yes, go to step S8; if no, return to step S2;

[0016] S8, the temperature control component enters the heating mode.

[0017] The control method of a charging pile described in the present invention can not only enter different temperature adjustment modes according to different temperatures to perform precise temperature adjustment, but also perform fire alarm, and has high safety.

[0018] Further, step S6 includes the following steps:

[0019] S61, determining whether the temperature T of the battery assembly is less than the first threshold temperature T1; if so, proceeding to step S62; if not, proceeding to step S63;

[0020] S62, the temperature control component enters the first level cooling mode;

[0021] S63, determining whether the temperature T of the battery assembly is less than the second threshold temperature T2; if so, proceeding to step S64; if not, proceeding to step S65;

[0022] S64, the temperature control component enters the secondary cooling mode;

[0023] S65, the temperature control component enters the third-level cooling mode.

[0024] Further, step S8 includes the following steps:

[0025] S81, determining whether the temperature T of the battery assembly is greater than or equal to the third threshold temperature T3; if so, proceeding to step S82; if not, proceeding to step S83;

[0026] S82, the temperature control component enters the first level heating mode;

[0027] S83, the temperature control component enters the secondary heating mode.

[0028] Step S62 includes the following steps: controlling the heat exchanger to operate in cooling mode.

[0029] Further, step S64 includes the following steps: controlling the heat exchanger to operate in a cooling mode; and controlling the heat storage device to start storing heat and cooling the battery assembly 2.

[0030] Further, step S65 includes the following steps: controlling the heat exchanger to operate in a cooling mode; at the same time, controlling the heat storage device to start storing heat and cooling the battery assembly, after a first preset time t1, controlling the heat storage drive device to drive the heat storage device to move upward, and controlling the fan assembly to start blowing air to cool the battery assembly.

[0031] Further, step S82 includes the following steps: controlling the heat exchanger to operate in heating mode.

[0032] Furthermore, step S83 includes the following steps: controlling the heat exchanger to operate in a heating mode; and controlling the heating fixture to start heating the battery assembly.

[0033] Furthermore, during the execution of steps S6 and S8, the process returns to step S2 in real time.

[0034] Furthermore, the fire threshold temperature T 火 >High temperature threshold T 高 >Low temperature threshold T 低 .

[0035] Compared with the prior art, the control method of a charging pile described in the present invention has the following beneficial effects:

[0036] The control method of a charging pile described in the present invention can not only enter different temperature adjustment modes according to different temperatures to perform precise temperature adjustment, but also perform fire alarm, and has high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the three-dimensional structure of a charging pile according to an embodiment of the present invention;

[0038] Figure 2 This is a schematic diagram of the front view structure of a charging pile according to an embodiment of the present invention;

[0039] Figure 3 This is one of the exploded structural schematic diagrams of a temperature control component and a battery component of a charging pile according to an embodiment of the present invention;

[0040] Figure 4 This is a bottom view structural schematic diagram of a heating and fixing device for a charging pile according to an embodiment of the present invention;

[0041] Figure 5 This is a schematic diagram of a top view of a first mounting plate of a charging pile according to an embodiment of the present invention;

[0042] Figure 6 This is a schematic diagram of the structure of a retractable component of a charging pile according to an embodiment of the present invention;

[0043] Figure 7 This is a schematic diagram of a top view of a horizontal substrate of a charging pile according to an embodiment of the present invention;

[0044] Figure 8 This is a schematic diagram of a top view of a balance sensing device of a charging pile according to an embodiment of the present invention;

[0045] Fig. 9 It is a schematic cross-sectional structure diagram of a balance sensing device of a charging pile according to an embodiment of the present invention;

[0046] Fig.10 This is a second schematic diagram of the explosion structure of a temperature control component and a battery component of a charging pile according to an embodiment of the present invention;

[0047] Fig.11 This is a schematic diagram of the three-dimensional structure of a heat storage device of a charging pile according to an embodiment of the present invention;

[0048] Fig.12 The present invention is a flowchart of a method for controlling a charging pile according to an embodiment of the present invention.

[0049] Description of reference numerals:

[0050] 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. Heating fixture; 311. Fixing frame; 312. Heating plate; 32. Heat exchanger; 321. Heat exchange membrane; 322. First heat exchange medium flow channel; 3221. Liquid inlet; 3 23. Second heat exchange medium flow channel; 3231. Liquid outlet; 33. Heat storage device; 331. Heat storage plate; 332. Heat storage sheet; 333. Heat storage drive device; 334. Telescopic column; 34. Fan assembly; 62. Telescopic assembly; 63. Horizontal substrate; 631. Clamp hole; 64. Balance sensing device; 641. Center ball; 642. Plane; 643. Sliding resistor; 6431. Sliding part; 6432. Stationary part. DETAILED DESCRIPTION

[0051] 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.

[0052] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0053] Example 1

[0054] In the prior art, the charging pile does not have a corresponding control method to enter different temperature adjustment modes according to different temperatures for precise temperature adjustment, nor can it perform fire alarms, resulting in poor safety.

[0055] This embodiment provides a control method for a charging pile, wherein a battery assembly 2 is installed inside a charging pile body 1, and a temperature control assembly 3 is arranged on the battery assembly 2, such as Fig.12 As shown, the control method of the charging pile specifically includes the following steps:

[0056] S1, start charging;

[0057] S2, real-time detection of the temperature T of the battery assembly 2;

[0058] 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;

[0059] S4, shutdown alarm;

[0060] 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;

[0061] S6, the temperature control component 3 enters the cooling mode;

[0062] 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;

[0063] S8, the temperature control component 3 enters the heating mode.

[0064] In the control method of a charging pile 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, enter step S4, stop the alarm, improve the safety and reliability of the charging pile; if not, through steps S5 to S8, the temperature control component 3 can be based on 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.

[0065] In addition, after a fire occurs at a charging pile, it is impossible to determine the direction of the fire, and it can only be determined by firefighters, which is prone to misjudgment.

[0066] In order to solve the above technical problem, specifically, step S1 includes the following steps:

[0067] S11, start charging;

[0068] S12, the balance sensing device 64 determines whether the heating fixture 31 is unbalanced, if so, enter S12; if not, enter S2;

[0069] S13, the balance sensing device 64 adjusts the telescopic component 62 to extend or retract;

[0070] 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.

[0071] In the control method of a charging pile described in this embodiment, steps S11 to S14 are interrelated. After receiving the instruction to start charging, step S12 is used to first determine whether the heating fixture 31 is unbalanced, so as to make a preliminary judgment on whether a fire has occurred. If the heating fixture 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 impact, which may also cause the heating fixture 31 to be unbalanced, the alarm is not immediately stopped 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 has occurred, if so, proceed to step S4, stop the machine and alarm, these steps greatly improve the safety and reliability of the charging pile; 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.

[0072] The temperature control assembly of the prior art has a single means of regulating the temperature of the battery pack and has a poor temperature regulation effect on the battery pack.

[0073] In order to solve the above technical problem, specifically, step S6 includes the following steps:

[0074] 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;

[0075] S62, the temperature control component 3 enters the first level cooling mode;

[0076] 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;

[0077] S64, the temperature control component 3 enters the secondary cooling mode;

[0078] S65, the temperature control component 3 enters the third-level cooling mode.

[0079] Specifically, step S62 includes the following steps: controlling the heat exchanger 32 to operate in a cooling mode, and the heat exchange medium entering the heat exchange membrane 321 is a low-temperature heat exchange medium.

[0080] Specifically, step S64 includes the following steps: controlling the heat exchanger 32 to operate in cooling mode, and the heat exchange medium entering the heat exchange membrane 321 is a low-temperature heat exchange medium; and controlling the heat storage device 33 to start storing heat and cooling the battery assembly 2.

[0081] Specifically, step S65 includes the following steps: controlling the heat exchanger 32 to operate in the cooling mode, 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 device 33 to start storing heat and cooling the battery assembly 2, and after the first preset time t1, controlling the heat storage drive device 333 to drive the heat storage device 33 to move upward, and controlling the fan assembly 34 to start blowing air to cool the battery assembly 2.

[0082] Steps S61 to S65 divide the high temperature state of the battery assembly 2 into different temperature ranges, and run 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.

[0083] In the initial state, the heat storage device 33 is attached to the heating fixing device 31 , and the heating plate 312 and the heat storage plate 332 are attached to the battery.

[0084] After the heat storage driving device 333 drives the heat storage device 33 to move upward, the heat storage sheet 332 is separated from the battery.

[0085] Specifically, step S8 includes the following steps:

[0086] 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;

[0087] S82, the temperature control component 3 enters the first level heating mode;

[0088] S83, the temperature control component 3 enters the secondary heating mode.

[0089] Specifically, step S82 includes the following steps: controlling the heat exchanger 32 to operate in a heating mode, and the heat exchange medium entering the heat exchange membrane 321 is a high-temperature heat exchange medium.

[0090] Specifically, step S83 includes the following steps: controlling the heat exchanger 32 to operate in a heating mode, and the heat exchange medium entering the heat exchange membrane 321 is a high-temperature heat exchange medium; and controlling the heating fixture 31 to start heating the battery assembly 2.

[0091] Steps S81 to S83 divide the low temperature state of the battery assembly 2 into different temperature ranges, and run 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.

[0092] Specifically, during the execution of steps S6 and S83, the process returns to step S2 in real time.

[0093] Specifically, during the execution of steps S62, S64, S65, S82 and S83, the process returns to step S2 in real time.

[0094] 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.

[0095] Specifically, the fire threshold temperature T 火 >High temperature threshold T 高 >Low temperature threshold T 低 .

[0096] 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.

[0097] Specifically, the first preset time t1 is a system preset value and is not specifically limited.

[0098] More specifically, the value range of the first preset time t1 is: [2, 20], the unit of t1 is min, and t1 can take any value from 2 to 20 min.

[0099] Preferably, in this embodiment, the value of t1 is 10 minutes.

[0100] Example 2

[0101] In this embodiment, a charging pile is proposed, and the charging pile uses a charging pile control method described in any one of Embodiment 1, such as Figures 1 to 11 As shown, a battery assembly 2 is installed inside the charging pile body 1. The battery assembly 2 can collect excess electrical energy during low-peak charging and release it during peak charging to replenish electrical energy for the charging pile body, thereby improving the utilization rate of electrical energy and reducing the waste of electrical energy.

[0102] The battery assembly 2 is connected to the charging pile body 1 through a battery charging and discharging power source.

[0103] A temperature control component 3 is provided on the battery assembly 2, and the temperature control component 3 can cool the battery assembly 2 when the temperature of the battery assembly 2 is high; and can heat the battery assembly 2 when the temperature of the battery assembly 2 is low;

[0104] The temperature control component 3 includes: a heating fixture 31, which can heat up the battery assembly 2 when the temperature of the battery assembly 2 is low; a heat exchanger 32, which 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.

[0105] Specifically, the heat exchanger 32 is communicated with the heat pump system.

[0106] In the charging pile described in this embodiment, the heating fixture 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.

[0107] Specifically, the heating and fixing device 31 is arranged below the battery assembly 2 and the heat exchanger 32 .

[0108] 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 .

[0109] Specifically, the heating and 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 heating plates 312 are arranged on the fixing frame 311; the heating plates 312 are fixed inside the fixing holes, and the heating plates 312 are arranged around the battery for heating the corresponding battery.

[0110] 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.

[0111] 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).

[0112] 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 .

[0113] 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.

[0114] 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.

[0115] Specifically, the heat exchange membrane 321 is arranged in a straight line.

[0116] 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.

[0117] 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.

[0118] Specifically, the temperature control component 3 further includes a heat storage device 33, and the heat storage device 33 can store heat and cool down the battery assembly 2 when the temperature of the battery assembly 2 is high.

[0119] Specifically, the heat storage device 33 includes a heat storage plate 331, which is arranged above the battery assembly 2, and a plurality of heat storage sheets 332 are arranged on the heat storage plate 331; the heat storage sheets 332 are fixed above the battery to store heat and cool the corresponding battery.

[0120] Specifically, the heat storage device 33 is installed above the heating and fixing device 31 .

[0121] Specifically, a heat storage driving device 333 is provided on the heat storage device 33 , the heat storage device 33 is connected to the heat storage driving device 333 , and the heat storage driving device 333 can drive the heat storage device 33 to move up and down.

[0122] When the temperature of the heat storage device 33 is high, the heat storage driving device 333 is provided to facilitate driving the heat storage device 33 upward, which is convenient for taking away the heat on the heat storage device 33, thereby achieving accurate heat dissipation of the heat storage device 33, reducing energy consumption, and ensuring reliable heat dissipation; on the other hand, the heat dissipation effect of the heat storage device 33 is already poor, which facilitates other devices to cool down the battery assembly 2. When the temperature of the heat storage device 33 is not high, the heat storage driving device 333 is provided to facilitate driving the heat storage device 33 downward, so that the heat storage device 33 can fully store heat and cool down the battery assembly 2.

[0123] Specifically, the heat storage driving device 333 is disposed at a central position above the heat storage plate 331 .

[0124] Specifically, a telescopic column 334 is provided below the heat storage plate 331 .

[0125] 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.

[0126] Specifically, Figure 2 As shown, the fan assembly 34 is arranged on the left and right sides of the first installation area 101 .

[0127] Specifically, Figure 2 and Figure 4 As shown, a balance induction device 64 is provided at the center position below the heating fixture 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 .

[0128] 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 .

[0129] Under normal conditions, the heating fixture 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 heating fixture 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.

[0130] 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.

[0131] 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 .

[0132] 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.

[0133] 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 heating fixture 31 to be unbalanced. When the heating fixture 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.

[0134] 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.

[0135] Specifically, a control module (not shown) is arranged inside the charging pile body 1 , and the control module is connected to the heating fixing device 31 , the heat exchanger 32 , the heat storage device 33 , the fan assembly 34 , the balance sensing device 64 , and the retractable assembly 62 .

[0136] It should be noted that, in this embodiment, a backup power supply is provided inside the charging pile body 1 .

[0137] Compared with the prior art, the charging pile described in this embodiment interconnects the heating fixing device 31, the heat exchanger 32, the heat storage 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; it can also reduce unnecessary energy consumption; on the other hand, it improves the safety and reliability of the charging pile, 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.

[0138] Compared with the prior art, the charging pile and control method described in this embodiment, the charging pile and the control method of the charging pile are interrelated, and the heating fixing device 31, the heat exchanger 32, the heat storage device 33, the fan assembly 34, the balance sensing device 64, the retractable assembly 62 and the horizontal substrate 63 are interrelated, 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 charging pile, 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.

[0139] 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. A control method for a charging pile, characterized in that: A battery assembly (2) is installed inside a charging pile body (1), and a temperature control assembly (3) is arranged on the battery assembly (2). The control method of the charging pile comprises the following steps: S1, start charging; S2, detecting the temperature T of the battery assembly (2) in real time; S3, judging 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; S4, shutdown alarm; 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; S6, the temperature control component (3) enters the cooling mode; 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; S8, the temperature control component (3) enters the heating mode.

2. A control method for a charging pile according to claim 1, characterized in that: Step S6 includes the following steps: 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; S62, the temperature control component (3) enters the first level cooling mode; 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; S64, the temperature control component (3) enters the secondary cooling mode; S65, the temperature control component (3) enters the third-level cooling mode.

3. A control method for a charging pile according to claim 1, characterized in that: Step S8 includes the following steps: S81, determining whether the temperature T of the battery assembly (2) is greater than or equal to a third threshold temperature T3; if so, proceeding to step S82; if not, proceeding to step S83; S82, the temperature control component (3) enters the first level heating mode; S83, the temperature control component (3) enters the secondary heating mode.

4. A control method for a charging pile according to claim 2, characterized in that: Step S62 includes the following steps: controlling the heat exchanger (32) to operate in cooling mode.

5. A control method for a charging pile according to claim 2, characterized in that: Step S64 includes the following steps: controlling the heat exchanger (32) to operate in a cooling mode; and simultaneously controlling the heat storage device (33) to start storing heat and cooling the battery assembly (2).

6. A control method for a charging pile according to claim 2, characterized in that: Step S65 comprises the following steps: controlling the heat exchanger (32) to operate in a cooling mode; and simultaneously controlling the heat storage device (33) to start storing heat and cooling the battery assembly (2); after a first preset time t1, controlling the heat storage drive device (333) to drive the heat storage device (33) to move upward, and controlling the fan assembly (34) to start blowing air and cooling the battery assembly (2).

7. A control method for a charging pile according to claim 3, characterized in that: Step S82 includes the following steps: controlling the heat exchanger (32) to operate in a heating mode.

8. A control method for a charging pile according to claim 3, characterized in that: Step S83 includes the following steps: controlling the heat exchanger (32) to operate in a heating mode; and simultaneously controlling the heating fixture (31) to start heating the battery assembly (2).

9. A control method for a charging pile according to claim 1, characterized in that: During the execution of steps S6 and S8, the process returns to step S2 in real time.

10. A control method for a charging pile according to claim 1, characterized in that: The fire threshold temperature T 火 >High temperature threshold T 高 >Low temperature threshold T 低 .

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