Charging gun and charging pile

Abstract

The utility model relates to the technical field of charging guns, in particular to a charging gun and a charging pile, the charging gun comprises a charging gun body, a switch piece arranged in the charging gun body, a heating piece arranged in the charging gun body and a control piece arranged in the charging gun body, the heating piece is connected with the switch piece, and the control piece is connected with the switch piece. The control piece is used for collecting the current temperature of the charging gun and closing the switch piece when the current temperature is smaller than the preset temperature, and the heating piece is used for heating the charging gun. Therefore, the problems that during outdoor charging in winter, the temperature of the charging gun cannot be adjusted, the hand of the charging gun is frozen, and the charging experience of a user is affected are solved, the more comfortable temperature of the charging gun is provided for the charging user during charging, and therefore the purpose of improving the charging experience is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of charging guns, and in particular to a charging gun and a charging pile. Background Art

[0002] With the large-scale popularization of electric vehicles and the rapid development of technology, the biggest difference in experience between electric vehicles and fuel vehicles lies in the recharging of vehicles. Charging has become a high-frequency use scenario for electric vehicle owners, and whether it can provide users with a comfortable charging experience has become the core competitiveness of today's new forces or traditional electric vehicle companies.

[0003] However, more than half of the charging stations on the market are located outdoors. When users charge outdoors in winter, the charging gun "freezes their hands", which is an experience that almost every charging user will have. Therefore, the adjustable temperature of outdoor charging guns has become an experience pain point that urgently needs to be solved. Utility Model Content

[0004] The present application provides a charging gun and a charging pile to solve the problem that the temperature of the charging gun cannot be adjusted during outdoor charging in winter, causing the charging gun to "freeze hands" and affecting the user's charging experience.

[0005] The first aspect of the present application provides a charging gun, comprising: a charging gun body; a switch component arranged in the charging gun body; a heating component arranged in the charging gun body, the heating component being connected to the switch component, and the heating component being used to heat the charging gun; a control component arranged in the charging gun body, the control component being connected to the switch component, the control component being used to collect the current temperature of the charging gun, and when the current temperature is lower than a preset temperature, closing the switch component to heat the charging gun through the heating component.

[0006] Optionally, the switch element includes: a switch unit, one end of which is connected to a first preset power supply, and the other end of which is connected to the heating element; a diode, a cathode of which is connected to one end of the switch unit; a transistor, a collector of which is respectively connected to an anode of the diode and the other end of the switch unit, a base of which is connected to the control element, and an emitter of the transistor is grounded.

[0007] Optionally, the switching unit includes: an inductor and a normally open contact, wherein one end of the inductor is respectively connected to the first preset power supply, the cathode of the diode and one end of the normally open contact, and the other end of the inductor is connected to the collector of the transistor; the other end of the normally open contact is connected to one end of the heating element.

[0008] Optionally, the switch element further includes: a current limiting resistor, one end of which is connected to the control element, and the other end of which is connected to the base of the transistor; a pull-down resistor, one end of which is connected to the base of the transistor, and the other end of which is connected to the emitter of the transistor.

[0009] Optionally, the heating element is a heating resistor, one end of the heating resistor is connected to the other end of the normally open contact, and the other end of the heating resistor is connected to the emitter of the transistor.

[0010] Optionally, the control element includes: a thermistor, one end of the thermistor is connected to a second preset power supply, a first resistor, one end of the first resistor is connected to the other end of the thermistor, and the other end of the first resistor is grounded; a control unit, the input end of the control unit is respectively connected to the other end of the thermistor and one end of the first resistor, and the output end of the control unit is connected to the switch element.

[0011] Optionally, it also includes a heat preservation component, which is arranged in the charging gun body and wraps the thermistor and the heating element.

[0012] Optionally, the first preset power source is a charging pile.

[0013] Optionally, it also includes a display component, which is connected to the control component and is used to display the current temperature.

[0014] A second aspect of the present application provides a charging pile, which includes the charging gun described in the above embodiment.

[0015] This application uses a control component to collect the current temperature of the charging gun, and when the current temperature is lower than a preset temperature, the switch component is closed, and the heating component is used to heat the charging gun. This solves the problem that the temperature of the charging gun cannot be adjusted when charging outdoors in winter, causing the charging gun to "freeze hands" and affecting the user's charging experience, and provides a more comfortable charging gun temperature for charging users, thereby improving the charging experience.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0018] Figure 1 is a block diagram of a charging gun according to an embodiment of the present application;

[0019] Figure 2 is a schematic structural diagram of a charging gun according to an embodiment of the present application;

[0020] Figure 3 This is a schematic diagram of the internal circuit of a charging gun according to an embodiment of the present application;

[0021] Figure 4 The figure is a schematic diagram of a temperature-adjustable charging gun according to an embodiment of the present application. DETAILED DESCRIPTION

[0022] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0023] The following describes the charging gun and charging pile of the embodiment of the present application with reference to the accompanying drawings. In view of the problem mentioned in the background technology center that the temperature of the charging gun cannot be adjusted when charging outdoors in winter, causing the charging gun to "freeze hands" and affecting the user's charging experience, the present application provides a charging gun that uses a control component to collect the current temperature of the charging gun, and when the current temperature is less than the preset temperature, closes the switch component to heat the charging gun through the heating component. Thereby, the problem that the temperature of the charging gun cannot be adjusted when charging outdoors in winter, causing the charging gun to "freeze hands" and affecting the user's charging experience is solved, and a more comfortable charging gun temperature is provided for charging users when charging, thereby improving the charging experience.

[0024] Specifically, Figure 1 A block diagram of a charging gun provided in an embodiment of the present application.

[0025] like Figure 1 As shown, the charging gun 10 includes: a charging gun body 10; a control component 100 arranged in the charging gun body 10, a switch component 200 arranged in the charging gun body 10, and a heating component 300 arranged in the charging gun body 10, wherein the heating component 300 is connected to the switch component 200, the control component 100 is connected to the switch component 200, the heating component 300 is used to heat the charging gun 10, and the control component 100 is used to collect the current temperature of the charging gun 10, and when the current temperature is less than the preset temperature, close the switch component 200 to heat the charging gun 10 through the heating component 300.

[0026] In some embodiments, the heating element 300 is a heating resistor, one end of the heating resistor is connected to the other end of the normally open contact NO, and the other end of the heating resistor is connected to the emitter of the transistor Q. It should be noted that the preset temperature can be a threshold value preset by the user, a threshold value obtained through a limited number of experiments, or a threshold value obtained through a limited number of computer simulations. To facilitate understanding of the embodiments of the present application, the embodiments of the present application set the preset temperature to 25°C.

[0027] Specifically, the charging gun body 10 is as follows Figure 2 As shown, the heating resistor is heated by the charging pile current, and the current temperature of the charging gun 10 is collected by the control component 100 in the charging gun body 10. When the current temperature of the charging gun 10 is lower than the preset temperature (such as 25°C), the switch component 200 is closed, and the control component 100 controls the heating current of the heating component 300. When the current temperature of the charging gun 10 reaches the specified temperature (such as 35°C), the switch component 200 is disconnected, and the control component 100 controls the heating component 300 to stop heating.

[0028] Optionally, in some embodiments, the switch element 200 includes: a switch unit, a diode D and a transistor Q, wherein one end of the switch unit is connected to the first preset power supply, the other end of the switch unit is connected to the heating element 300, the cathode of the diode D is connected to one end of the switch unit, the collector of the transistor Q is respectively connected to the anode of the diode D and the other end of the switch unit, the base of the transistor Q is connected to the control element 100, and the emitter of the transistor Q is grounded.

[0029] In some embodiments, the first preset power source is a charging pile. The voltage of the first preset power source is 12V, which provides current and voltage for the charging gun 10.

[0030] Optionally, in some embodiments, the switching unit includes: an inductor L and a normally open contact NO, wherein one end of the inductor L is respectively connected to a first preset power supply, a cathode of a diode D and one end of the normally open contact NO, and the other end of the inductor L is connected to a collector of a transistor Q; the other end of the normally open contact NO is connected to one end of the heating element 300.

[0031] In the embodiment of the present application, the switch unit may be a relay, which includes an inductor coil L and a normally open contact NO.

[0032] Specifically, Figure 3As shown, one end of the inductor L of the switch unit is respectively connected to the first preset power supply, the cathode of the diode D and one end of the normally open contact NO, the other end of the inductor L is connected to the collector of the transistor Q, the other end of the normally open contact NO is connected to one end of the switch element 200, the cathode of the diode D in the switch element 200 is connected to one end of the normally open contact NO of the switch unit, the anode of the diode D is connected to the collector of the transistor Q, the base of the transistor Q in the switch element 200 is connected to the control element 100, and the emitter of the transistor Q is grounded.

[0033] Optionally, in some embodiments, the switch element 200 further includes: a current limiting resistor R3 and a pull-down resistor R4, wherein one end of the current limiting resistor R3 is connected to the control element 100, and the other end of the current limiting resistor R3 is connected to the base of the transistor Q; one end of the pull-down resistor R4 is connected to the base of the transistor Q, and the other end of the pull-down resistor R4 is connected to the emitter of the transistor Q.

[0034] It should be understood that the current limiting resistor R3 is arranged between the control component 100 and the base of the transistor Q to prevent the transistor Q from burning out due to excessive base current. The current limiting resistor R3 plays a current limiting role, which is also called base current limiting. If the base end of the transistor Q is controlled by a single-chip microcomputer, the output level may be uncertain when the single-chip microcomputer is initialized. In this case, the pull-up resistor R4 pulls the base down to a certain low level to prevent malfunction.

[0035] Optionally, in some embodiments, the control element 100 includes: a thermistor R1, a first resistor R2 and a control unit 101, wherein one end of the thermistor R1 is connected to a second preset power supply, one end of the first resistor R2 is connected to the other end of the thermistor R1, and the other end of the first resistor R2 is grounded; the input end of the control unit 101 is respectively connected to the other end of the thermistor R1 and one end of the first resistor R2, and the output end of the control unit 101 is connected to the switch element 200.

[0036] The control unit 101 is a microcontroller, which is used to start and stop the heating of the heating element 300, and the second preset power supply is 1V.

[0037] It should be understood that the thermistor R1 can indirectly measure the current temperature at the handle of the charging gun 10 according to the measured resistance value of the NTC thermistor.

[0038] Specifically, as the current temperature at the handle of the charging gun 10 changes, the NTC thermistor value changes. The NTC thermistor obtains a voltage V1=V*R2 / (R1+R2) between the thermistor R1 and the first resistor R2 based on the voltage of the second preset power supply and the resistance values ​​of the thermistor R1 and the first resistor R2, and inputs the voltage value of V1 into the microcontroller of the control component 100 to convert it into a temperature signal, thereby obtaining the current temperature of the charging gun 10 and performing temperature judgment.

[0039] Further, when the current temperature of the charging gun 10 is lower than the set preset temperature, the microcontroller outputs a high-level signal through the current limiting resistor R3 to the transistor Q. At this time, the transistor Q is in the on state, current is passed through the inductor L, the normally open contact NO of the switch unit is closed, and the heating resistor starts working to heat the temperature at the handle of the charging gun 10 to the set temperature. When the current temperature is higher than the set temperature, the voltage V1 between the thermistor R1 and the first resistor R2 is obtained again according to the voltage of the second preset power supply, the resistance value of the thermistor R1 and the first resistor R2, and the voltage V1 is input to the microcontroller and converted into a temperature signal to obtain the current temperature of the charging gun 10, and perform temperature judgment. If the microcontroller calculates that the current temperature of the charging gun 10 is higher than the set temperature, a low-level signal is output, the transistor Q in the switch element 200 is in the off state, there is no current in the inductor L, the normally open contact NO in the switch unit is opened, and the current passed through the heating resistor is 0, and the heating stops at this time.

[0040] In some embodiments, it also includes a heat preservation component 400 , which is disposed in the charging gun body 10 and wraps the thermistor R1 and the heating component 300 .

[0041] In the embodiment of the present application, a heating resistor is installed on the charging gun body 10 and filled with insulation cotton, such as Figure 4 As shown, the thermal insulation component 400 may be thermal insulation cotton, which is filled in the user's hand-gripping area of ​​the charging gun 10 to insulate the heating resistor and the thermistor R1. Relevant personnel in this field may select the thermal insulation component 400 according to the insulation requirements.

[0042] Optionally, in some embodiments, it also includes a display component, which is connected to the control component 100 and is used to display the current temperature.

[0043] The display element may be a liquid crystal display, which is disposed on the surface of the charging gun 10 and is used to display the current temperature of the charging gun 10 .

[0044] In this embodiment, an LED light may also be provided in the charging gun 10. When the current temperature of the charging gun 10 is lower than a preset temperature, the LED light flashes red. When the current temperature of the charging gun 10 is higher than the set temperature, the LED light flashes green.

[0045] According to the charging gun proposed in the embodiment of the present application, the current temperature of the charging gun is collected by the control component, and when the current temperature is lower than the preset temperature, the switch component is closed to heat the charging gun through the heating component. This solves the problem that the temperature of the charging gun cannot be adjusted when charging outdoors in winter, causing the charging gun to "freeze hands" and affecting the user's charging experience, and provides a more comfortable charging gun temperature for charging users, thereby improving the charging experience.

[0046] An embodiment of the present application also provides a charging pile, which includes a charging gun as described in the above embodiment.

[0047] 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 present application. 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 N 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.

[0048] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0049] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiment, the N steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

Claims

1. A charging gun, characterized in that: include: Charging gun body; A switch member disposed in the charging gun body; A heating element disposed in the charging gun body, the heating element being connected to the switch element and being used to heat the charging gun; and a control component disposed in the charging gun body, the control component being connected to the switch component, the control component being used to collect the current temperature of the charging gun, and closing the switch component when the current temperature is lower than a preset temperature, so as to heat the charging gun through the heating component; A heat preservation component is arranged in the charging gun body, the heat preservation component wraps the heating component, and the heat preservation component is arranged at the user's hand-gripping portion of the charging gun.

2. The charging gun according to claim 1, characterized in that: The switch element comprises: A switch unit, one end of which is connected to a first preset power source, and the other end of which is connected to the heating element; a diode, wherein a cathode of the diode is connected to one end of the switch unit; A transistor, wherein the collector of the transistor is respectively connected to the anode of the diode and the other end of the switch unit, the base of the transistor is connected to the control element, and the emitter of the transistor is grounded.

3. The charging gun according to claim 2, characterized in that: The switch unit comprises: an inductor coil and a normally open contact, wherein: One end of the inductor is connected to the first preset power supply, the cathode of the diode and one end of the normally open contact respectively, and the other end of the inductor is connected to the collector of the transistor; The other end of the normally open contact is connected to one end of the heating element.

4. The charging gun according to claim 2 or 3, characterized in that: The switch element further comprises: A current limiting resistor, one end of which is connected to the control element, and the other end of which is connected to the base of the transistor; A pull-down resistor, one end of which is connected to the base of the transistor, and the other end of which is connected to the emitter of the transistor.

5. The charging gun according to claim 3, characterized in that: The heating element is a heating resistor, one end of the heating resistor is connected to the other end of the normally open contact, and the other end of the heating resistor is connected to the emitter of the transistor.

6. The charging gun according to claim 2, characterized in that: The control element comprises: a thermistor, one end of which is connected to a second preset power source, a first resistor, one end of the first resistor being connected to the other end of the thermistor, and the other end of the first resistor being grounded; A control unit, wherein an input end of the control unit is respectively connected to the other end of the thermistor and one end of the first resistor, and an output end of the control unit is connected to the switch element.

7. The charging gun according to claim 6, characterized in that: The thermal insulation component also wraps the thermistor.

8. The charging gun according to claim 2, characterized in that: The first preset power source is a charging pile.

9. The charging gun according to claim 1 or 8, characterized in that: Also includes; A display component is connected to the control component, and the display component is used to display the current temperature.

10. A charging pile, characterized in that: Including: a charging gun as described in any one of claims 1-9.

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