Charging pile with temperature alarm function

Abstract

The utility model relates to the technical field of charging piles, in particular to a charging pile with a temperature alarm function, which comprises a charging pile shell and is characterized in that a cavity is formed in the charging pile shell, a transformer is mounted in the cavity of the charging pile shell, a current connection substrate is arranged on the rear side of the transformer, and a temperature alarm is arranged on the current connection substrate. A thermosensitive resistor is mounted on the transformer; the electromagnetic assembly comprises a sliding connecting block installed on the rear side of the interior of the charging pile shell, a first connecting plate is arranged at the upper end of the sliding connecting block, and a second connecting plate is arranged at the lower end of the sliding connecting block; the heat dissipation component is used for conducting heat dissipation on components in the charging pile shell; an alternating current connection base is mounted in the charging pile shell; and through the action of a sliding connecting block and an electrified electromagnet, the sliding connecting block moves upwards to automatically disconnect an alternating current charging circuit when the temperature of the equipment is too high, the safety of the device is improved, and the situation that the service life is affected when the charging pile works in a high-temperature state for a long time is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of charging piles, and in particular to a charging pile with a temperature alarm function. Background Art

[0002] A charging pile refers to a charging device that provides charging services for electric vehicles. It can charge various models of electric vehicles according to different voltage levels, and generally provides two charging methods: conventional charging and fast charging.

[0003] With the popularity of electric vehicles, the application of charging piles has also increased, especially fast-charging charging piles. In some charging stations, it is often seen that after one electric car is charged, another electric car starts charging immediately. Since the internal components of the charging piles work under high voltage current for a long time, the internal temperature of the charging piles rises and it is very easy to cause safety accidents. The patent document with application number 202323347857.4 discloses a municipal charging pile with temperature monitoring and alarm. The charging pile requires the installer to monitor the temperature status of the charging pile at a regular period and cannot slow down the temperature increase of the internal components of the charging pile. The safety factor is low and the labor cost is high. At the same time, the device has poor adjustment ability when the temperature is too high, and has no self-protection ability, and the equipment needs to be slowly cooled down. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that a charging pile cannot make safety adjustments as the temperature changes, and proposes a charging pile with a temperature alarm function.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A charging pile with a temperature alarm function, comprising a charging pile shell, characterized in that the charging pile shell has a cavity inside, a transformer is installed in the cavity of the charging pile shell, a current connection substrate is provided on the rear side of the transformer, and a thermistor is installed on the transformer; an electromagnetic component comprises a sliding connection block installed on the rear side of the charging pile shell, a first connection plate is provided on the upper end of the sliding connection block, and a second connection plate is provided on the lower end of the sliding connection block; a heat dissipation component is used to dissipate heat from the internal components of the charging pile shell; an AC connection base is installed inside the charging pile shell, an alarm is provided above the charging pile shell, and when the sliding connection block slides to the bottom, the first connection plate is in contact with the AC connection base, and the second connection plate is in contact with the current connection substrate, and a temperature sensor is installed on the transformer.

[0007] A further solution of the utility model is that a first pole piece is provided on the AC connection base, a second pole piece is provided on the lower end surface of the first connecting plate, a third pole piece is provided on the upper end surface of the first connecting plate, a fourth pole piece is provided on the current connection substrate, and a fifth pole piece is provided on the second connecting plate.

[0008] A further solution of the utility model is that the electromagnetic component also includes a powered electromagnet installed inside the charging pile housing, the powered electromagnet is connected to the thermistor through a wire, and a sixth electrode sheet is provided on the powered electromagnet, and the sixth electrode sheet can be in contact with the third electrode sheet.

[0009] A further solution of the utility model is that the heat dissipation component is a heat dissipation fan installed at the lower part of the charging pile housing, and the heat dissipation fan is respectively connected in series with the alarm, the energized electromagnet and the thermistor.

[0010] A further solution of the utility model is that a charging wire is connected to the rear side of the exterior of the charging pile housing, and the charging wire is connected to an external AC power source.

[0011] A further solution of the utility model is that a battery is installed inside the charging pile shell, and the battery is respectively connected to the alarm, the energized electromagnet and the thermistor. A light energy charging board is installed on the charging pile shell, and the light energy charging board is connected to the battery through a wire.

[0012] Compared with the prior art, the utility model provides a charging pile with a temperature alarm function, which has the following beneficial effects.

[0013] 1. The utility model uses a temperature sensor and an alarm to help people understand the working status and internal temperature of the charging pile, manage the charging pile, and use the charging pile to charge the car, which is convenient for parking lot management;

[0014] 2. The utility model, through the action of the sliding connection block and the energized electromagnet, enables the sliding connection block to move upward when the temperature of the device is too high to automatically disconnect the AC charging circuit, thereby improving the safety of the device and preventing the charging pile from working in a high temperature state for a long time and affecting its service life.

[0015] Other advantages, objectives and features of the present invention will be described in the following description to some extent; and will be apparent to those skilled in the art based on the following examination and study to some extent; or, may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a first cross-sectional structural schematic diagram of the utility model;

[0018] Figure 3 It is a first schematic diagram of a partial cross-sectional structure of the utility model;

[0019] Figure 4 It is a second schematic diagram of a partial cross-sectional structure of the utility model;

[0020] Figure 5 It is a third schematic diagram of a partial cross-sectional structure of the utility model;

[0021] Figure 6 It is a fourth schematic diagram of a partial cross-sectional structure of the utility model;

[0022] Figure 7 It is a schematic diagram of the working circuit diagram of the utility model.

[0023] Reference numerals:

[0024] 1. Charging pile shell; 11. AC power connection base; 111. First pole piece; 12. Charging wire; 13. Solar charging board; 14. Cooling fan; 141. Ventilation window; 15. Storage battery; 2. Transformer; 21. Current connection substrate; 211. Fourth pole piece; 22. Temperature sensor; 3. Thermistor; 4. Sliding connection block; 41. First connection plate; 411. Second pole piece; 412. Third pole piece; 42. Second connection plate; 421. Fifth pole piece; 43. Power-on electromagnet; 431. Sixth electrode piece; 5. Alarm. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Reference Figure 1-7The utility model discloses a charging pile with a temperature alarm function, comprising a charging pile shell 1, wherein the charging pile shell 1 has a cavity, a transformer 2 is installed in the cavity of the charging pile shell 1, a current connection substrate 21 is arranged at the rear side of the transformer 2, a thermistor 3 is installed on the transformer 2, the thermistor 3 is a negative temperature coefficient thermistor (NTC), and the resistance of the thermistor 3 decreases as the temperature rises, an electromagnetic component is installed on the rear side of the charging pile shell 1, and the electromagnetic component includes a sliding connection block 4 installed at the rear side of the charging pile shell 1, and a current connection substrate 21 is arranged at the rear side of the transformer 2, and a thermistor 3 is installed on the transformer 2. The thermistor 3 is a negative temperature coefficient thermistor (NTC), and the resistance of the thermistor 3 decreases as the temperature rises. A heat dissipation component is installed below the charging pile housing 1. The thermistor 3, the heat dissipation component and the electromagnetic component are connected in a specific design circuit through wires. An AC connection base 11 is installed inside the charging pile housing 1. A first connection plate 41 is provided at the upper end of the sliding connection block 4, and a second connection plate 42 is provided at the lower end of the sliding connection block 4. An alarm 5 is provided above the charging pile housing 1. When the sliding connection block 4 slides to the bottom, the first connection plate 41 is in contact with the AC connection base 11, and the second connection plate 42 is in contact with the current connection substrate 21. A temperature sensor 22 is provided on the transformer 2.

[0027] In the initial state, the temperature inside the charging pile housing 1 is normal; the thermistor 3 has a larger resistance when the temperature is lower, and the temperature sensor 22 monitors the temperature changes inside the charging pile housing 1 in real time and reflects them in real time; when the transformer 2 on the charging pile housing 1 works for a long time, causing the internal temperature to gradually rise and the temperature does not affect the normal operation of the equipment, the resistance of the thermistor 3 is larger at this temperature, and the current passing through the thermistor 3 is small, and the current passing through the electromagnetic component is small, the electromagnetic component is in a low current state, and the sliding connection block 4 is in the lowest state under the action of its own gravity, and the first connecting plate 41 is in contact with the AC connection base 11. The second connecting plate 42 is in contact with the current connection substrate 21, and the transformer 2 is connected to the external AC power supply through the AC connection base 11 and the current connection substrate 21, and then the electric vehicle is charged by the AC voltage. At this time, the temperature sensor 22 detects that the internal temperature has reached the set warning temperature, and the circuit that controls the heat dissipation component inside the charging pile shell 1 is connected. The transformer 2 is directly cooled by controlling the operation of the heat dissipation component, and the circuit of the alarm 5 is connected at the same time. The alarm 5 is provided with an audible and visual alarm unit. The optical alarm component in the audible and visual alarm unit works and emits yellow light, prompting the personnel that the temperature inside the equipment is slightly high at this time, and it is recommended to set it when other equipment is idle. It is suggested that electric vehicles charge on other devices; when the temperature inside the device further rises due to long-term operation of the device, the temperature sensor 22 detects that the temperature inside the device rises to the set alarm temperature, which affects the normal operation of the internal components of the device. The temperature sensor 22 detects that the internal temperature reaches the alarm temperature, connects the circuit of the alarm 5 inside the charging pile housing 1 and starts the alarm. The optical alarm component emits a red light and the acoustic alarm component emits an alarm sound, prompting the device to stop charging. At the same time, the resistance of the thermistor 3 decreases as the temperature rises, and the electromagnetic component increases as the current passing through it increases, and the attraction to the sliding connection block 4 increases, driving the sliding connection block 4 to slide upward. At this time, the first connecting plate 41 is disconnected from the AC connection base 11, the second connecting plate 42 is disconnected from the current connection substrate 21, the external AC power supply is disconnected from the charging pile, the current passing through the heat dissipation component is further increased, and the speed of heat dissipation for the charging pile is also accelerated. The temperature sensor 22 promptly informs the staff of the temperature changes inside the charging pile through the working status of the set temperature adjustment alarm 5. When the temperature is too high, the sliding connection block 4 moves upward under the action of the electromagnetic component, and automatically disconnects the external charging power supply, thereby providing high-temperature safety protection for various components such as the internal transformer 2, thereby improving the safety and reliability of the device.

[0028] A charging wire 12 is connected to the outer rear side of the charging pile housing 1, and the charging wire 12 is connected to an external AC power supply. A first pole piece 111 is arranged on the AC connection base 11, a second pole piece 411 is arranged on the lower end surface of the first connecting plate 41, and a third pole piece 412 is arranged on the upper end surface of the first connecting plate 41. A fourth pole piece 211 is arranged on the current connection substrate 21, and a fifth pole piece 421 is arranged on the second connecting plate 42. When the sliding connection block 4 slides to the lower limit position under the action of gravity, the first pole piece 111 is in contact with the second pole piece 411, and the fourth pole piece 211 is in contact with the fifth pole piece 421. At this time, the charging pile is connected to the external AC power supply device, and the electric vehicle can be charged; when the sliding connection block 4 slides upward under the magnetic force of the electromagnetic component, the first pole piece 111 is disconnected from the second pole piece 411, and the fourth pole piece 211 is disconnected from the fifth pole piece 421. At this time, the charging pile is disconnected from the external AC power supply device.

[0029] The electromagnetic component also includes a powered electromagnet 43 installed inside the charging pile housing 1. The powered electromagnet 43 is connected to the thermistor 3 through a wire. A sixth electrode sheet 431 is provided on the powered electromagnet 43. The sixth electrode sheet 431 can be in contact with the third electrode sheet 412. As the temperature of the thermistor 3 increases, the resistance decreases. At this time, the current of the powered electromagnet 43 increases, and the electromagnetic attraction of the powered electromagnet 43 increases. When the sliding connecting block 4 is driven to move to the top, the AC charging power supply circuit is automatically cut off.

[0030] The heat dissipation component is a heat dissipation fan 14 installed at the lower part of the charging pile shell 1. The heat dissipation fan 14 is respectively connected in series with the alarm 5, the energized electromagnet 43 and the thermistor 3. When the temperature sensor 22 detects that the temperature inside the equipment reaches the warning temperature, the circuit of the heat dissipation fan 14 is automatically connected to start heat dissipation. The airflow generated by the heat dissipation fan 14 directly acts on the components inside the charging pile shell 1. A ventilation window 141 is provided at the bottom of the charging pile shell 1 to facilitate the exchange of cold airflow of the heat dissipation fan 14. A filter layer for filtering air is provided on the ventilation window 141 to prevent impurities in the air from entering the interior of the charging pile and affecting the normal operation of the components.

[0031] A battery 15 is installed inside the charging pile shell 1, and the battery 15 is respectively connected to the alarm 5, the energized electromagnet 43 and the thermistor 3. A light charging board 13 is installed on the charging pile shell 1, and the light charging board 13 is connected to the battery 15 through a wire. The light charging board 13 can convert light energy into electrical energy and store it in the battery 15. The electrical energy of the equipment alarm is separated from the AC power supply equipment through the battery 15 and the light charging board 13, so that the charging function and the alarm function are independent of each other and do not interfere with each other, thereby ensuring the independent and normal operation of each component.

[0032] A protective plate is hinged on the front side of the charging pile housing 1 to prevent the front side of the charging pile from being damaged when an electric car stops too far, thereby improving the anti-collision capability of the device.

[0033] In the utility model, when the temperature of each component inside the charging pile housing 1 is normal, the temperature sensor 22 detects that the temperature of each component is normal, and the alarm module does not work; when the temperature sensor 22 detects that the temperature inside the charging pile housing 1 rises to the warning temperature, the circuit switch is designed to adjust the optical alarm component in the sound and light alarm unit on the alarm 5 to work and emit yellow light, prompting personnel that the temperature inside the equipment is slightly high at this time, and it is recommended that the electric vehicle be charged on other devices when other equipment is idle; when the temperature sensor 22 detects that the temperature inside the equipment rises to the set alarm temperature, the circuit of the alarm 5 inside the charging pile housing 1 starts to alarm, the optical alarm component emits red light and the acoustic alarm component emits an alarm sound, prompting the device to stop charging, and at the same time, the resistance of the thermistor 3 decreases as the temperature rises, and the electromagnetic component increases as the current passing through it, which The attraction becomes larger, driving the sliding connection block 4 to slide upward. At this time, the first connection plate 41 is disconnected from the AC connection base 11, and the second connection plate 42 is disconnected from the current connection substrate 21. The external AC power supply is disconnected from the charging pile, and the current passing through the heat dissipation component is further increased, which speeds up the heat dissipation of the charging pile. The device works together through the temperature sensor 22 and the alarm 5 to facilitate people to understand the working status and internal temperature of the charging pile, facilitate people to manage the charging pile, facilitate people to use the charging work of the charging pile, and facilitate the management of the parking lot. Through the action of the sliding connection block 4 and the energized electromagnet 43, the device slides The connection block 4 moves upward when the temperature is too high and automatically disconnects the AC charging circuit, thereby improving the safety of the device and preventing the charging pile from working in a high temperature state for a long time and affecting its service life.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0036] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A charging pile with a temperature alarm function, comprising a charging pile housing (1), characterized in that: The charging pile housing (1) has a cavity inside, a transformer (2) is installed in the cavity of the charging pile housing (1), a current connection substrate (21) is arranged at the rear side of the transformer (2), and a thermistor (3) is installed on the transformer (2); an electromagnetic component comprises a sliding connection block (4) installed at the rear side of the charging pile housing (1), a first connection plate (41) is arranged at the upper end of the sliding connection block (4), and a second connection plate (42) is arranged at the lower end of the sliding connection block (4); a heat dissipation component is used to dissipate heat from the internal components of the charging pile housing (1); an alternating current connection base (11) is installed inside the charging pile housing (1), an alarm (5) is arranged above the charging pile housing (1), and when the sliding connection block (4) slides downward, the first connection plate (41) is in contact with the alternating current connection base (11), and the second connection plate (42) is in contact with the current connection substrate (21), and a temperature sensor (22) is installed on the transformer (2).

2. A charging pile with temperature alarm function according to claim 1, characterized in that: The AC connection base (11) is provided with a first pole piece (111), the lower end surface of the first connection plate (41) is provided with a second pole piece (411), the upper end surface of the first connection plate (41) is provided with a third pole piece (412), the current connection substrate (21) is provided with a fourth pole piece (211), and the second connection plate (42) is provided with a fifth pole piece (421).

3. The charging pile with temperature alarm function according to claim 2, characterized in that: The electromagnetic component further comprises an energized electromagnet (43) installed inside the charging pile housing (1); the energized electromagnet (43) is connected to the thermistor (3) via a wire; a sixth electrode sheet (431) is provided on the energized electromagnet (43); and the sixth electrode sheet (431) can be in close contact with the third electrode sheet (412).

4. The charging pile with temperature alarm function according to claim 3, characterized in that: The heat dissipation component is a heat dissipation fan (14) installed at the lower part of the charging pile housing (1), and the heat dissipation fan (14) is respectively connected in series with the alarm (5), the energized electromagnet (43) and the thermistor (3).

5. The charging pile with temperature alarm function according to claim 1, characterized in that: A charging wire (12) is connected to the rear side of the exterior of the charging pile housing (1), and the charging wire (12) is connected to an external AC power source.

6. The charging pile with temperature alarm function according to claim 4, characterized in that: A accumulator (15) is installed inside the charging pile housing (1), and the accumulator (15) is respectively connected to the alarm (5), the energized electromagnet (43) and the thermistor (3). A light energy charging plate (13) is installed on the charging pile housing (1), and the light energy charging plate (13) is connected to the accumulator (15) via a wire.

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