Combined current detection device

Abstract

The utility model provides a combined current detection device, which is characterized in that a first controller is arranged above a shunt, a first interface is arranged on the first controller, a Hall sensor is clamped at one end, close to the first controller, above the shunt, a second controller is arranged in the Hall sensor, and a second interface is arranged at the output end of the second controller; the two ends of the shunt are connected with an external wire harness connecting plate through the locking pieces, the first controller is used for detecting currents at the two ends of the shunt and outputting data through the first interface, and the second controller is used for detecting currents at the end, close to the first controller, of the upper portion of the shunt and outputting data through the second interface. Data transmission can be independently carried out, it is guaranteed that current is always detected by the device, detection continuity is guaranteed, meanwhile, the Hall sensor and the shunt are flexibly combined, and the size is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of shunt, more particularly to a combined current detection device. BACKGROUND

[0002] The current sensor used in the power battery management system mainly has two forms, a Hall type current sensor and a high-precision shunt resistance type current sensor. The Hall type current sensor is composed of a Hall chip and a magnetic conducting ring, a straight wire passes through the magnetic conducting ring, the wire current generates an induced magnetic field in the magnetic conducting ring, and the Hall chip indirectly measures the current in the wire by sensing the magnetic field strength in the magnetic conducting ring. The measurement of the Hall sensor is a non-contact measurement, which can measure a larger current value, the sampling circuit is simple, high-voltage isolation is not required, and the cost is low. The main sensitive device of the high-precision shunt resistance type current sensor is a high-precision shunt resistance, which is connected in series in the main circuit, and the current flowing through the high-precision shunt resistance is indirectly measured by measuring the voltage drop across the high-precision shunt resistance. This measurement method has high precision and high cost.

[0003] The closest prior art is the authorized announcement number: CN206515387U, current detection device and current detection system, which discloses the current detection device includes a current signal port, a first sensing device and a second sensing device, wherein: the first sensing device detects the current flowing through the current signal port and obtains a first current detection signal; the second sensing device detects the current flowing through the first sensing device and obtains a second current detection signal, the first sensing device is a high-precision shunt resistance, the second sensing device is a Hall current sensor or a magnetic flux gate sensing device, and the controller in the current detection system processes the first current detection signal and the second current detection signal to obtain a final detection signal.

[0004] In the existing current detection device, the output signals of the first sensing device and the second sensing device are concentrated and processed by the controller, and then output. When the controller is damaged, the detection device cannot detect and process data, and the detection efficiency is reduced.

[0005] Therefore, the utility model provides a combined current detection device which can independently separate and output signals and has a simple structure. UTILITY MODEL CONTENT

[0006] The utility model discloses a combined current detection device which can independently separate and output signals and has a simple structure.

[0007] The utility model provides a combined current detection device, including shunt 1, hall sensor 2, first controller 3, it is characterized in that: the first controller 3 is equipped with first interface 4 on the top of shunt 1, the hall sensor 2 is clamped with the one end of first controller 3 on the top of shunt 1, the second controller is equipped with in hall sensor 2, and the second interface 5 is equipped with in second controller output, and the both ends of shunt 1 are connected with external wire harness connecting plate 7 through locking piece 8, and first controller 3 is used to detect the current of the both ends of shunt 1 and exports data through first interface 4, and the second controller is used to detect the current of the one end of shunt 1 on the top near first controller 3 and exports data through second interface 5.

[0008] Further, the heat conduction channel area 6 is further provided in the middle of the shunt 1, which facilitates the conduction of the shunt 1 temperature to the temperature monitoring below the first controller 3.

[0009] In some embodiments, the hall sensor 2 is a rectangular with rounded corners around, so that it is arranged around the one end of the shunt 1 on the top near the first controller 3.

[0010] In some embodiments, the locking piece 8 is a screw, and the both ends of the shunt 1 are threadedly connected with the external wire harness connecting plate 7 through the screw, which is convenient for disassembly.

[0011] In some embodiments, the first interface 4 is provided with a foolproof port 9 on one side, which is a special-shaped port to prevent connection errors.

[0012] In some embodiments, the first interface 4 is provided with a heat dissipation port 10 on the other side, which is convenient for heat dissipation of the first controller 3.

[0013] In some embodiments, the heat dissipation port 10 is further provided with a buckle 11 on the corresponding surface.

[0014] In some embodiments, the external wire harness connecting plate 7 is further provided with a limiting surface 12 near the shunt 1 side, which is used to limit the position of the hall sensor 2 to prevent displacement.

[0015] The utility model discloses a beneficial effect: the utility model provides a combined current detection device, the upper portion of shunt 1 is equipped with the first controller 3, is equipped with the first interface 4 on the first controller 3, the upper portion of shunt 1 is close to the one end clamping of first controller 3 and is equipped with hall sensor 2, is equipped with the second controller in hall sensor 2, and the second interface 5 is equipped with the second controller output, and the both ends of shunt 1 are connected with the external wire harness connecting plate 7 through locking piece 8, and the first controller 3 is used to detect the current of the both ends of shunt 1 and exports data through the first interface 4, and the second controller is used to detect the current of the upper portion of shunt 1 close to the one end of first controller 3 and exports data through the second interface 5, can independently respectively carry out data transmission, guarantees that the current always has the device in detection, guarantees detection continuity, and hall sensor 2 and shunt 1 flexible combination reduce the volume. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a combined current detection device of the application.

[0017] Figure 2 It is a front view of a combined current detection device of the application.

[0018] Figure 3 It is a rear view of a combined current detection device of the application.

[0019] MAIN ELEMENT SYMBOL EXPLANATION

[0020] Shunt 1, hall sensor 2, first controller 3, first interface 4, second interface 5, heat conduction runner area 6, external wire harness connecting plate 7, locking piece 8, foolproof port 9, heat dissipation port 10, buckle 11, limit surface 12.

[0021] The following specific embodiments will further illustrate the utility model in conjunction with the above drawings. DETAILED DESCRIPTION

[0022] The following embodiments are described to assist in the understanding of the application, and the embodiments are not and should not be interpreted as limiting the protection scope of the application in any way.

[0023] In the following description, those skilled in the art will recognize that throughout the present discussion, components can be described as single functional units (which can include sub-units), but those skilled in the art will recognize that the various components, or portions thereof, can be divided into separate components, or can be integrated together (including integrated within a single system or component).

[0024] Also, connections between components or systems are not intended to be exclusive connections, rather there can be additional or fewer connections. It is further noted that the terms "coupled," "connected," or "input" are understood to be inclusive of direct connections, indirect connections made through intervening devices, and wireless connections. Embodiment 1

[0025] As shown in FIG. 1, it is a structural schematic diagram of a combined current detection device according to the present application; as shown in FIG. 2, it is a front view of a combined current detection device according to the present application; as shown in FIG. 3, it is a rear view of a combined current detection device according to the present application. Figure 1 As shown in FIG. 1, it is a structural schematic diagram of a combined current detection device according to the present application; as shown in FIG. 2, it is a front view of a combined current detection device according to the present application; as shown in FIG. 3, it is a rear view of a combined current detection device according to the present application. Figure 2 As shown in FIG. 1, it is a structural schematic diagram of a combined current detection device according to the present application; as shown in FIG. 2, it is a front view of a combined current detection device according to the present application; as shown in FIG. 3, it is a rear view of a combined current detection device according to the present application. Figure 3 As shown in FIG. 1, it is a structural schematic diagram of a combined current detection device according to the present application; as shown in FIG. 2, it is a front view of a combined current detection device according to the present application; as shown in FIG. 3, it is a rear view of a combined current detection device according to the present application.

[0026] A combined current detection device, comprising a shunt 1, a Hall sensor 2, and a first controller 3, characterized in that: the upper side of the shunt 1 is provided with the first controller 3, the first controller 3 is provided with a first interface 4, the end of the shunt 1 close to the first controller 3 is provided with the Hall sensor 2, the Hall sensor 2 is provided with a second controller, the output end of the second controller is provided with a second interface 5, the two ends of the shunt 1 are connected with an external wire harness connecting plate 7 through locking pieces 8, the first controller 3 is used for detecting the current at the two ends of the shunt 1 and outputting data through the first interface 4, and the second controller is used for detecting the current at the end of the shunt 1 close to the first controller 3 and outputting data through the second interface 5.

[0027] The shunt 1 is further provided with a heat conduction channel area 6 in the middle, which facilitates the conduction of the temperature of the shunt 1 to the first controller 3 below for temperature monitoring.

[0028] The Hall sensor 2 is a rectangular shape with rounded corners around, so that it is arranged around the end of the shunt 1 close to the first controller 3.

[0029] The locking pieces 8 are screws, and the two ends of the shunt 1 are threadedly connected with the external wire harness connecting plate 7 through the screws, which is convenient for disassembly.

[0030] One side of the first interface 4 is provided with a foolproof port 9, which is a special-shaped port, preventing connection errors when connected.

[0031] The other side of the first interface 4 is provided with a heat dissipation port 10, which is convenient for heat dissipation of the first controller 3.

[0032] The heat dissipation port 10 is further provided with a buckle 11 on the corresponding surface.

[0033] The external wire harness connecting plate 7 is further provided with a limiting surface 12 close to the side of the shunt 1, which is used for limiting the position of the Hall sensor 2 to prevent displacement.

[0034] The utility model discloses a combined current detection device, the upper portion of shunt 1 is equipped with first controller 3, is equipped with first interface 4 on first controller 3, the one end of shunt 1 upper portion close first controller 3 is connected with hall sensor 2, is equipped with second controller in hall sensor 2, second controller output is equipped with second interface 5, and the both ends of shunt 1 are connected with external wire harness connecting plate 7 through locking piece 8, and first controller 3 is used to detect the current of the both ends of shunt 1 and exports data through first interface 4, and second controller is used to detect the current of the one end of shunt 1 upper portion close first controller 3 and exports data through second interface 5, can independently respectively carry out data transmission, guarantees that the current always has the device in detection, guarantees detection continuity, and hall sensor 2 and shunt 1 flexible combination simultaneously, reduce the volume.

[0035] Although several aspects and embodiments have been disclosed, other aspects and embodiments will be apparent to those skilled in the art without departing from the spirit of the application, and several modifications and improvements can be made without departing from the concept of the application, and these all belong to the protection scope of the application. The aspects and embodiments disclosed in the application are only used for illustration, and are not intended to limit the application, and the actual protection scope of the application is subject to the claims.

Claims

1. A combined current detection device, comprising a shunt (1), a Hall sensor (2), a first controller (3), characterized in that: The upper part of the shunt (1) is provided with a first controller (3), and the first controller (3) is provided with a first interface (4). The end of the shunt (1) close to the first controller (3) is provided with a Hall sensor (2), and the Hall sensor (2) is internally provided with a second controller. The output end of the second controller is provided with a second interface (5). The two ends of the shunt (1) are connected with an external wire harness connecting plate (7) through locking pieces (8). The first controller (3) is used for detecting the current of the two ends of the shunt (1) and outputting data through the first interface (4). The second controller is used for detecting the current of the end of the shunt (1) close to the first controller (3) and outputting data through the second interface (5).

2. The combined current sensing device of claim 1, wherein: The middle part of the shunt (1) is further provided with a heat conduction channel area (6), which facilitates the temperature conduction of the shunt (1) to the first controller (3) below for temperature monitoring.

3. The combined current sensing device of claim 1, wherein: The Hall sensor (2) is a rectangular with rounded corners around, which is arranged around the end of the shunt (1) close to the first controller (3).

4. The combined current sensing device of claim 1, wherein: The locking piece (8) is a screw, and the two ends of the shunt (1) are threadedly connected with the external wire harness connecting plate (7) through the screw, which is convenient for disassembly.

5. The combined current sensing device of claim 1, wherein: One side of the first interface (4) is provided with a foolproof port (9), which is a special-shaped port, preventing connection error when connected.

6. The combined current sensing device of claim 1, wherein: The other side of the first interface (4) is provided with a heat dissipation port (10), which is convenient for heat dissipation of the first controller (3).

7. The combined current sensing device of claim 6, wherein: The corresponding surface of the heat dissipation port (10) is further provided with a buckle (11).

8. The combined current sensing device of claim 1, wherein: The external wire harness connecting plate (7) close to the shunt (1) side is further provided with a limiting surface (12) for limiting the position of the Hall sensor (2) to prevent displacement.

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