Detection device for preventing theft of charging pile gun line, charging pile and charging system

Abstract

The utility model provides a kind of for charging pile gun wire theftproof detection equipment, charging pile and charging system, the detection equipment includes: being arranged on the control panel of charging pile first and second gun temperature detection circuit, one end is connected with the PT resistance of the positive electrode power line and negative electrode power line of charging pile gun wire respectively, the other end is integrated on control panel, respectively for detecting the temperature data of positive electrode power line and negative electrode power line;Control panel is used to obtain the temperature data of the positive electrode terminal DC+ and negative electrode terminal DC- of positive electrode power line and negative electrode power line, whether the gun wire is stolen according to temperature data detection.Gun temperature detection circuit is integrated on the inherent control panel of charging pile to detect the temperature data of the positive electrode power line and negative electrode power line of charging pile gun wire respectively, not only can the temperature data of two cables be used to detect whether the gun wire is stolen in time and accurately, and the whole equipment can be widely applied to market inventory product, with very high practical application value.

Description

Technical Field

[0001] This utility model relates to the field of charging equipment technology, specifically to a detection device for anti-theft of charging pile charging gun wires, a charging pile, and a charging system. Background Technology

[0002] Currently, charging gun cables in charging systems are frequently stolen in some areas (usually after being cut). This is because the conductor material is made of copper wire, and the conductor cross-sectional area is relatively large, making it valuable for recycling. Furthermore, charging equipment is mostly installed outdoors or in public areas, creating blind spots for supervision and patrols. Additionally, some users fail to retrieve the cables in time after charging or do not activate the corresponding anti-theft functions.

[0003] If the charging gun cable is stolen, it will not only cause economic losses to the operator, but also cause the charging facility to suspend service due to equipment damage, affecting other users. Furthermore, the exposed circuit after the theft is prone to safety hazards such as electric shock, short circuit or fire.

[0004] Therefore, how to provide a practical solution for preventing theft of charging gun cables, and how to detect abnormalities in the charging gun cables in a timely and accurate manner, so that operators can promptly discover the risk of theft and minimize losses, has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a detection device for anti-theft of charging pile charging cables.

[0006] This utility model also proposes a charging pile.

[0007] This utility model also proposes a charging system.

[0008] The technical solution adopted in this utility model is as follows: One embodiment of this utility model provides a detection device for anti-theft of charging pile charging cables, comprising: A first gun temperature detection circuit and a second gun temperature detection circuit are integrated on the control board of the charging pile. One end of the first and second gun temperature detection circuits are connected to the PT resistors (platinum resistance thermometers) of the positive and negative power lines of the charging gun, respectively. The other end of the first and second gun temperature detection circuits are integrated on the control board. The first and second gun temperature detection circuits are used to detect the temperature data of the positive terminal DC+ and the negative terminal DC− of the charging gun connected to the positive and negative power lines, respectively. The control board is used to acquire the temperature data and detect whether the charging gun has been stolen based on the temperature data.

[0009] The detection device for anti-theft of charging pile charging cables described above also has the following additional technical features: Specifically, the first or second gun temperature detection circuit includes: a first resistor, one end of which is connected to a first preset power supply, and the other end of which is connected to the positive or negative PT resistor of the charging pile gun line; a first capacitor, one end of which is connected to the other end of the first resistor, and the other end of which is grounded; a second resistor, one end of which is connected to the other end of the first resistor; an amplifier, the positive input terminal of which is connected to the other end of the second resistor, the negative input terminal of which is grounded through a third resistor, and the power supply terminal of which is connected to a second preset power supply and grounded through the second capacitor; a fourth resistor, one end of which is connected to the output terminal of the amplifier, and the other end of which serves as the temperature data output terminal of the first or second gun temperature detection circuit; a fifth resistor, one end of which is connected to the negative input terminal of the amplifier, and the other end of which is connected to the output terminal of the amplifier; a third capacitor, which is connected in parallel with the fifth resistor; and a fourth capacitor, one end of which is connected to the other end of the fourth resistor, and the other end of which is grounded.

[0010] Furthermore, the first or second gun temperature detection circuit further includes a filter, one end of which is connected to the positive or negative power line of the charging pile gun line, and the other end of which is connected to one end of the first resistor.

[0011] Specifically, the aforementioned detection equipment for anti-theft of charging pile charging cables also includes an alarm, which is connected to the control board. The control board is also used to control the alarm to emit an alarm sound when the charging cable is detected to be stolen.

[0012] A second aspect of this utility model provides a charging pile, including the detection device for anti-theft of charging pile charging gun wires described in the first aspect of this utility model.

[0013] A third aspect of this utility model provides a charging system, including the detection device for anti-theft of charging pile charging cables described in the first aspect of this utility model.

[0014] The beneficial effects of this utility model are: This invention integrates a gun temperature detection circuit on the inherent control board of the charging pile to detect the temperature data of the positive and negative power lines of the charging gun. This not only allows for accurate and timely detection of whether the charging gun has been stolen using the temperature data of the two cables, enabling operators to take timely countermeasures and minimize losses, but the entire device can also be widely used in existing products on the market, thus having high practical application value. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a detection device for anti-theft of charging pile charging cables according to an embodiment of the present invention; Figure 2 This is a structural schematic diagram of a detection device for anti-theft of charging pile gun wires according to another embodiment of the present invention. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Figure 1 This is a structural schematic diagram of a detection device for anti-theft of charging pile charging cables according to an embodiment of the present invention, as shown below. Figure 1 As shown, the testing device includes: a first gun temperature detection circuit 1 and a second gun temperature detection circuit 2.

[0018] The first gun temperature detection circuit 1 and the second gun temperature detection circuit 2 are integrated on the control board 3 of the charging pile 4. One end of the first gun temperature detection circuit 1 and the second gun temperature detection circuit 2 are connected to the PT resistors PT+ and PT− of the positive and negative power lines of the charging gun, respectively. The other end of the first gun temperature detection circuit 1 and the second gun temperature detection circuit 2 are integrated on the control board 3. The first gun temperature detection circuit 1 and the second gun temperature detection circuit 2 are used to detect the temperature data of the positive terminal DC+ and the negative terminal DC− of the charging gun connected to the positive and negative power lines, respectively. The control board 3 is used to acquire the temperature data and detect whether the charging gun has been stolen based on the temperature data.

[0019] Specifically, the control board 3 integrates two gun temperature detection circuits. These circuits are connected to the PT resistors PT+ and PT− on the positive power line of the charging gun, respectively. This circuit monitors the temperature data of the positive terminal DC+ and the negative terminal DC− of the charging gun in real time. Under normal circumstances, when the temperatures of DC+ and DC− change, the collected temperature data will also change, allowing the control board to monitor the temperature in real time. However, if the charging gun is stolen, the temperature data detected by the first and second temperature detection circuits 1 and 2 will simultaneously show abnormalities within a very short time (e.g., 5 seconds) (e.g., data loss or infinite temperature data). In this case, the control board 3 can determine that the charging gun has been stolen and report this information to the operator, allowing the operator to take timely countermeasures before the theft is completed, minimizing losses. If only one detection circuit loses or shows abnormal temperature data, the charging gun is considered faulty. Therefore, by integrating a gun temperature detection circuit into the inherent control board of the charging pile to detect the temperature data of the positive and negative power lines of the charging gun, it is possible to accurately and promptly detect whether the charging gun has been stolen, enabling operators to take timely countermeasures and minimize losses. Moreover, the entire device can be widely used in existing products on the market and has high practical application value.

[0020] In one embodiment of this utility model, such as Figure 1 As shown, the detection device for anti-theft of charging pile charging cables may also include: an alarm 5, which is connected to a control board 3. The control board 3 is also used to control the alarm 5 to emit an alarm sound when the charging cable is detected to be stolen.

[0021] Specifically, if the control panel 3 determines that the gun wire has been stolen, it can immediately trigger the alarm 5 to emit an alarm sound to warn the thief.

[0022] In one embodiment of this utility model, the first gun temperature detection circuit 1 or the second gun temperature detection circuit 2 has the same structure. As an example, such as... Figure 2 As shown, the first gun temperature detection circuit 1 or the second gun temperature detection circuit 2 may include: a first resistor R1, a first capacitor C1, a second resistor R2, an amplifier U1, a fourth resistor R4, a fifth resistor R5, a third capacitor C3, and a fourth capacitor C4.

[0023] In this circuit, one end of the first resistor R1 is connected to the first preset power supply VCC1, and the other end of the first resistor R1 is connected to the positive PT resistor PT+ or the negative PT resistor PT− of the positive power supply line of the charging pile gun line; one end of the first capacitor C1 is connected to the other end of the first resistor R1, and the other end of the first capacitor C1 is grounded; one end of the second resistor R2 is connected to the other end of the first resistor R1; the positive input terminal of the amplifier U1 is connected to the other end of the second resistor R2, the negative input terminal of the amplifier U1 is grounded through the third resistor R3, the power supply terminal of the amplifier U1 is connected to the second preset power supply VCC2, and is grounded through the second capacitor C2; one end of the fourth resistor R4 is connected to the output terminal of the amplifier U1, and the other end of the fourth resistor R4 serves as the temperature data output terminal of the first gun temperature detection circuit 1 or the second gun temperature detection circuit 2; one end of the fifth resistor R5 is connected to the negative input terminal of the amplifier U1, and the other end of the fifth resistor R5 is connected to the output terminal of the amplifier U1; the third capacitor C3 is connected in parallel with the fifth resistor R5; one end of the fourth capacitor C4 is connected to the other end of the fourth resistor R4, and the other end of the fourth capacitor C4 is grounded.

[0024] Furthermore, such as Figure 2 As shown, the first gun temperature detection circuit 1 or the second gun temperature detection circuit 2 may further include: a filter F, one end of which is connected to the positive power line PT+ or the negative power line PT− of the charging pile gun line, and the other end of which is connected to one end of the first resistor R1.

[0025] Specifically, one end of the first resistor R1 is connected to either the PT+ of the positive power line or the PT- of the negative power line of the charging gun. The resistance of the charging gun is R. R and R1 are both connected to VCC1. Operational amplifier U1 processes the voltage divider signal between R1 and the charging gun resistor R, and inputs it to the core processor in control board 3 through the AD1 interface. Control board 3 calculates the temperatures of the positive terminals DC+ and DC− of the positive and negative power lines based on the voltage divider signal. The relationship between the voltage divider signal and the temperature is pre-stored. When the charging gun resistor R is lost, the data input to control board 3 through the AD1 interface becomes infinite.

[0026] The control board 3 acquires the temperature data of the positive terminal DC+ and the negative terminal DC− of the positive and negative power lines detected by the first gun temperature detection circuit 1 and the second gun temperature detection circuit 2 in real time, so as to obtain the temperature changes of DC+ and DC−. The temperatures of DC+ and DC− terminals should not change significantly at the same time. Based on this fact, the control board 3 determines whether the temperatures of DC+ and DC− terminals are abnormal at the same time period (e.g., 5 seconds). If only one gun temperature detection circuit detects abnormal temperature data, it is judged as a gun line fault. When both temperature detection circuits fail at the same time within a set time period (e.g., within 5 seconds), it is immediately assumed that the gun line has been stolen. At this time, the charging pile will report this information to the operator. At the same time, the charging pile can choose whether to trigger a warning to alert the thief.

[0027] The first preset power supply VCC1 and the second preset power supply VCC2 can both be +3.3V.

[0028] In summary, the detection device for anti-theft of charging pile charging gun wires according to the embodiments of this utility model integrates a gun temperature detection circuit on the inherent control board of the charging pile to detect the temperature data of the positive and negative power lines of the charging pile charging gun wires respectively. It can not only accurately and timely detect whether the charging gun wires have been stolen by using the temperature data of the two cables, enabling operators to take timely countermeasures and minimize losses, but also the entire device can be widely used in existing products on the market and has high practical application value.

[0029] This utility model also proposes a charging pile, including the detection device for anti-theft of charging pile charging gun wires described above.

[0030] According to the embodiments of this utility model, the charging pile, through the above-mentioned detection device for anti-theft of charging pile gun wires, integrates a gun temperature detection circuit on the inherent control board of the charging pile to detect the temperature data of the positive and negative power lines of the charging pile gun wires respectively. This not only allows for accurate and timely detection of whether the gun wires have been stolen using the temperature data of the two cables, enabling operators to take timely countermeasures and minimize losses, but also the entire device can be widely used in existing products on the market, and has high practical application value.

[0031] In addition, this utility model also proposes a charging system, which may include: a charging pile, a charging gun, a control board, a charging gun wire, and the above-mentioned detection equipment for anti-theft of the charging pile charging gun wire.

[0032] According to the charging system of this utility model embodiment, through the above-mentioned detection device for anti-theft of charging pile gun wires, a gun temperature detection circuit is integrated on the inherent control board of the charging pile to detect the temperature data of the positive power line and the negative power line of the charging pile gun wire respectively. Not only can the temperature data of the two cables be used to accurately and timely detect whether the gun wire has been stolen, so that operators can take timely countermeasures to minimize losses, but the whole device can also be widely used in existing products on the market and has high practical application value.

[0033] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0036] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A detection device for anti-theft of charging station charging cables, characterized in that, include: The first gun temperature detection circuit and the second gun temperature detection circuit are integrated on the control board of the charging pile. One end of the first gun temperature detection circuit and the second gun temperature detection circuit are respectively connected to the PT resistor of the positive power line and the negative power line of the charging pile gun. The other end of the first gun temperature detection circuit and the second gun temperature detection circuit are integrated on the control board. The first gun temperature detection circuit and the second gun temperature detection circuit are respectively used to detect the temperature data of the positive terminal DC+ and the negative terminal DC− of the charging gun connected to the positive power line and the negative power line. The control board is used to acquire the temperature data and detect whether the gun wire has been stolen based on the temperature data.

2. The detection device for anti-theft of charging pile charging cables according to claim 1, characterized in that, The first gun temperature detection circuit or the second gun temperature detection circuit includes: The first resistor has one end connected to the first preset power supply and the other end connected to the positive or negative PT resistor of the charging pile gun wire. A first capacitor, one end of which is connected to the other end of the first resistor, and the other end of the first capacitor is grounded; A second resistor, one end of which is connected to the other end of the first resistor; An amplifier, wherein the positive input terminal of the amplifier is connected to the other end of the second resistor, the negative input terminal of the amplifier is grounded through a third resistor, and the power supply terminal of the amplifier is connected to a second preset power supply and grounded through a second capacitor; The fourth resistor has one end connected to the output terminal of the amplifier, and the other end of the fourth resistor serves as the temperature data output terminal of the first gun temperature detection circuit or the second gun temperature detection circuit. The fifth resistor has one end connected to the negative input terminal of the amplifier and the other end connected to the output terminal of the amplifier. A third capacitor, which is connected in parallel with the fifth resistor; A fourth capacitor, one end of which is connected to the other end of the fourth resistor, and the other end of the fourth capacitor is grounded.

3. The detection device for anti-theft of charging pile charging cables according to claim 2, characterized in that, The first gun temperature detection circuit or the second gun temperature detection circuit further includes: The filter has one end connected to the positive or negative power line of the charging pile gun, and the other end connected to one end of the first resistor.

4. The detection device for anti-theft of charging pile charging cables according to claim 1, characterized in that, Also includes: An alarm device is connected to the control board, which is also used to control the alarm device to emit an alarm sound when the detection wire is stolen.

5. A charging pile, characterized in that, Includes detection equipment for anti-theft of charging pile charging cables according to any one of claims 1-4.

6. A charging system, characterized in that, include: Charging pile, charging gun, control board, charging gun wire, and detection equipment for anti-theft of charging pile charging gun wire as described in any one of claims 1-4.

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