Portable wireless voltage acquisition transmitter

Abstract

The utility model discloses a portable wireless voltage acquisition transmitter. The transmitter comprises a housing; the connecting pin is arranged on the shell; the transmitter main body is arranged on the shell, the transmitter main body comprises a Hall voltage sensor, an analog-to-digital converter and a wireless communication module, the analog-to-digital converter is electrically connected with the Hall voltage sensor, the wireless communication module is electrically connected with the analog-to-digital converter, and the Hall voltage sensor is electrically connected with the connecting pin. The wireless voltage acquisition transmitter can solve the problems that voltage detection lines of a single battery are tedious and complex in connection, the lines are too long, and the accurate acquisition of the voltage is influenced by line interference easily generated by the lines. The transmitter is highly integrated, portable to install, not affected by the installation environment, simple in appearance, capable of achieving wireless low-cost transmission, high in jitter resistance and vibration resistance, high in measurement and transmission precision and high in reliability, and the number of connectors is small, and interference is eliminated.

Description

Technical Field

[0001] The utility model belongs to the field of electrical technology, and in particular relates to a portable wireless voltage acquisition transmitter. Background Art

[0002] In the voltage detection system of a single-chip battery in a battery stack, multiple wiring harnesses, multiple connectors or spring crimping parts have long been used to transfer multiple wiring harnesses to connect the positive and negative terminals of dozens to hundreds of single-chip batteries in the battery stack for voltage detection and measurement. In actual operation, the wiring is cumbersome and messy, the wiring harnesses interfere with each other and wiring is difficult and error-prone. The installation and removal efficiency is low, and the measurement accuracy is not high due to the loss of line voltage. The battery electrodes are easily damaged during multiple installation and disassembly processes, which increases the sunk cost of production and affects production efficiency. Utility Model Content

[0003] The purpose of the embodiment of the utility model is to provide a portable wireless voltage acquisition transmitter to solve the problems of complicated and messy wiring harnesses, difficult installation and removal, and low measurement accuracy in the detection of single-chip battery voltage in a battery stack.

[0004] The present invention provides a portable wireless voltage acquisition transmitter, comprising:

[0005] case;

[0006] A connecting pin, wherein the connecting pin is arranged on the housing;

[0007] The transmitter body is arranged on the shell, and the transmitter body includes: a Hall voltage sensor, an analog-to-digital converter and a wireless communication module, the analog-to-digital converter is electrically connected to the Hall voltage sensor, the wireless communication module is electrically connected to the analog-to-digital converter, and the Hall voltage sensor is electrically connected to the connecting pin.

[0008] Optionally, the Hall voltage sensor comprises:

[0009] A core body, a primary coil and a secondary coil are wound on the core body, the connecting pins include a first pin and a second pin, one end of the primary coil is connected to one end of the first pin, and the other end of the primary coil is connected to one end of the second pin.

[0010] Optionally, the first pin and the second pin are arranged in parallel and spaced apart.

[0011] Optionally, the shell is in a rectangular parallelepiped shape, and the first pin and the second pin are arranged perpendicular to a surface of the shell.

[0012] Optionally, the transmitter further comprises:

[0013] A control chip, wherein the control chip is electrically connected to the analog-to-digital converter and the wireless communication module.

[0014] Optionally, the transmitter further comprises:

[0015] An indicator light, the indicator light being arranged on the transmitter body or the housing;

[0016] A voltage stabilizing module, the voltage stabilizing module is connected to the output end of the primary coil;

[0017] The output end of the voltage stabilizing module is electrically connected to at least one of the control chip, the indicator light, and the wireless communication module.

[0018] Optionally, the transmitter further comprises:

[0019] An indicator light is arranged on the transmitter body or the shell.

[0020] Optionally, there are multiple indicator lights, and the multiple indicator lights are arranged at intervals.

[0021] Optionally, the shell is provided with a chamber, and the transmitter body is arranged in the chamber.

[0022] Optionally, the shell is made of insulating material.

[0023] The portable wireless voltage acquisition transmitter of the embodiment of the utility model has a connecting pin disposed on the housing, and the transmitter body is disposed on the housing. The transmitter body includes a Hall voltage sensor, an analog-to-digital converter and a wireless communication module, the analog-to-digital converter is electrically connected to the Hall voltage sensor, the wireless communication module is electrically connected to the analog-to-digital converter, and the Hall voltage sensor is electrically connected to the connecting pin. The wireless voltage acquisition transmitter can solve the problem that the connection of the single-chip battery voltage detection circuit is cumbersome and complicated, and the circuits are long and easy to cause mutual interference and affect the accurate collection of voltage. The transmitter is highly integrated and portable for installation, is not affected by the installation environment, has a simple appearance, wireless low-cost transmission, strong anti-jitter and anti-vibration performance, has few joints to eliminate interference, has high measurement and transmission accuracy, and has high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of a transmitter according to an embodiment of the utility model;

[0025] Figure 2 A side view of a transmitter according to an embodiment of the utility model;

[0026] Figure 3 Another side view of the transmitter according to the embodiment of the utility model;

[0027] Figure 4 A top view of the transmitter according to an embodiment of the utility model;

[0028] Figure 5 A connection diagram of the transmitter body.

[0029] Reference numerals

[0030] Housing 10; first pin 11; second pin 12;

[0031] Hall voltage sensor 20; core 21;

[0032] Analog-to-digital converter 30;

[0033] Wireless communication module 40. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] The terms "first", "second", etc. in the specification and claims of the present utility model are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present utility model can be implemented in an order other than those illustrated or described herein. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0036] like Figures 1 to 5As shown, the portable wireless voltage acquisition transmitter of the embodiment of the utility model includes: a shell 10, a connecting pin, and a transmitter body. The shell 10 can be cylindrical, rectangular, or frustum-shaped. The shell 10 can be a plastic shell or a rubber shell. The outer surface of the shell 10 can have an elastic layer to prevent collision damage. The connecting pins are arranged on the shell 10. The number of the connecting pins can be multiple. The multiple connecting pins can be arranged at intervals. The positive and negative electrodes of the battery cell can be connected through the connecting pins. The transmitter body is arranged on the shell 10. The transmitter body can be arranged inside the shell 10, and the transmitter body can be connected to the connecting pins. The transmitter body can include a Hall voltage sensor 20, an analog-to-digital converter 30, and a wireless communication module 40. The analog-to-digital converter 30 and the Hall voltage sensor 20 can be electrically connected. The wireless communication module 40 and the analog-to-digital converter 30 can be electrically connected. The Hall voltage sensor 20 and the connecting pins can be electrically connected. The connecting pins can be directly electrically connected to the positive and negative electrodes of the battery without the need for excessive wiring harness connections. The voltage signal transmitted by the analog-to-digital converter 30 can be transmitted to the upper computer FCU through the wireless communication module 40 to monitor and display the battery voltage in real time without the need for wired transmission. The transmitter body can be integrated with a sampling and holding circuit and a voltage stabilizing circuit to stabilize the voltage.

[0037] During the detection process, the connecting pins can be directly plugged into the positive and negative holes of the single-chip battery or into the positive and negative metal sockets of the single-chip battery. The wireless voltage acquisition transmitter can solve the problem that the connection of the single-chip battery voltage detection circuit is complicated, the lines are long, and the line interference is easy to affect the accurate collection of voltage. The transmitter is highly integrated and portable, not affected by the installation environment, with a simple appearance, wireless low-cost transmission, strong anti-jitter and anti-vibration performance, fewer joints to eliminate interference, high measurement and transmission accuracy, and high reliability.

[0038] In some embodiments, the Hall voltage sensor 20 may include: a core 21, a primary coil and a secondary coil are wound around the core 21, the connecting pins include a first pin 11 and a second pin 12, one end of the primary coil is connected to one end of the first pin 11, a primary resistor may be provided on one end of the primary coil, the other end of the primary coil is connected to one end of the second pin 12, and a primary resistor may also be provided on the other end of the primary coil. The core 21 may be a magnetic core, and the Hall voltage sensor 20 may include a linear Hall sensor.

[0039] In an embodiment of the utility model, the first pin 11 and the second pin 12 are arranged in parallel and spaced apart. The first pin 11 and the second pin 12 can be conductive material pieces, for example, the first pin 11 and the second pin 12 can be metal material pieces. The first pin 11 and the second pin 12 can be deformed, and the distance between the ends of the first pin 11 and the second pin 12 can be adjusted by the deformation of the first pin 11 and the second pin 12, so as to be suitable for different batteries.

[0040] The connecting pins include a third pin and a fourth pin, one end of the primary coil is connected to one end of the third pin, one end of the primary coil may be provided with a primary resistor, the other end of the primary coil is connected to one end of the fourth pin, the other end of the primary coil may also be provided with a primary resistor. The third pin and the fourth pin may form a group of pins, the third pin and the fourth pin have the same length, the first pin 11 and the second pin 12 have the same length, and the first pin 11 and the third pin have different lengths so as to be suitable for different batteries.

[0041] The spacing between the third pin and the fourth pin is different from the spacing between the first pin 11 and the second pin 12, so as to be suitable for batteries with positive and negative electrodes at different spacings. The surfaces of the first pin 11 and the second pin 12, and the third pin and the fourth pin can be coated with an elastic layer, and the elastic layer can be an insulating layer. The shell 10 can be in the shape of a rectangular parallelepiped, the first pin 11 and the second pin 12 can be arranged on one side of the shell 10, and the third pin and the fourth pin can be arranged on the other side of the shell 10. An insulating protective cover can be provided on the pins, and the protective cover can be an elastic protective cover, which is removed when in use.

[0042] Optionally, the housing 10 may be in a rectangular parallelepiped shape, and the first pin 11 and the second pin 12 may be arranged perpendicular to the surface of the housing 10 for easy installation and matching. The size of the housing may be 8mmX10mmX3mm, and the specific size may be selected as required.

[0043] In some embodiments, the transmitter may further include: a control chip, which may be electrically connected to an analog-to-digital converter and a wireless communication module. The primary voltage may be controlled by the control chip through a closed-loop sampling and holding voltage gain circuit having a common-phase terminal, and the sampling and holding circuit may be converted by the control chip via the analog-to-digital converter, and then sent to the upper computer FCU via the wireless communication module for real-time interpretation, monitoring and display of the battery voltage, and the wireless communication module may be a ZIGBEE wireless communication module.

[0044] In some embodiments, the transmitter may further include: an indicator light, a voltage stabilizing module, the indicator light may be arranged on the transmitter body or the housing, and the voltage stabilizing module is connected to the output end of the primary coil. The output end of the voltage stabilizing module is electrically connected to at least one of the control chip, the indicator light, and the wireless communication module. The primary voltage may output 5V and 3.3V voltages respectively through the voltage stabilizing module, and provide working power for the control chip and the ZIGBEE wireless communication module, with ultra-low power consumption, and no additional power supply is required.

[0045] Optionally, the transmitter may further include: an indicator light, which is arranged on the transmitter body or housing. Optionally, the number of indicator lights is multiple, and the multiple indicator lights are arranged at intervals. For example, the number of indicator lights may be three, and the indicator lights may be LED breathing indicator lights, and the same color of the three-color LED breathing indicator lights may indicate different communication statuses.

[0046] In an embodiment of the present invention, the housing may be provided with a chamber, the transmitter body may be disposed in the chamber, and the opening of the chamber may be encapsulated by plastic.

[0047] Optionally, the housing is made of an insulating material, such as a plastic material or a rubber material.

[0048] During the detection process, the connection pins can be connected to the positive and negative electrodes of the battery to perform single and double battery detection. When connecting two batteries, the positive and negative electrodes of the single battery are connected separately for single-cell detection; when connecting two batteries, the two batteries are connected in series head to tail to the positive electrode of the first battery and the negative electrode of the second battery respectively for double-cell detection. Figure 5As shown, the primary voltage Vp is converted into the primary current Ip through the primary resistor R1, AMP is the comparison amplifier, Rm is the secondary resistor, and the magnetic flux generated by Ip is balanced with the magnetic flux generated by the secondary current Is generated by the Hall voltage after amplification through the secondary coil. The secondary current Is can accurately reflect the primary voltage. On the one hand, the primary voltage can pass through a closed-loop sampling and holding voltage gain circuit with a common-phase terminal. On the other hand, the primary voltage can output 5V and 3.3V voltages respectively through a voltage regulator module. The voltage regulator module can include a voltage regulator circuit. The voltage regulator module can provide working power for the chip and the ZIGBEE wireless communication module. The device has the advantages of high integration, light weight, small vibration mass inertia, easy installation and fixation, strong environmental adaptability, high detection accuracy, strong anti-interference, and high reliability. The utility model adopts a new process of high-precision, micro-volume integrated magnetic balance Hall voltage sensor to ensure the accuracy and reliability of voltage detection. After the circuit signal is processed by high-gain and high-fidelity conditioning sampling, it is transmitted through the ZIGBEE module communication of the wireless cluster. The red, green and yellow of the three-color LED breathing indicator light correspond to the safety limit of the detection voltage, making the detection voltage faster and more intuitive. The portable wireless voltage acquisition and transmission device can collect voltage in the range of 0.25-2.5V. When it is lower than 0.25V, the device stops working. The measurement accuracy can be ±1mv, the linearity is good, the measurement frequency can be 0-20KHZ, the power consumption of the device is less than 50mw, and the weight of the device is less than 75g.

[0049] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, all of which are within the protection of the utility model.

Claims

1. A portable wireless voltage acquisition transmitter, characterized in that: include: case; A connecting pin, wherein the connecting pin is arranged on the housing; The transmitter body is arranged on the shell, and the transmitter body includes: a Hall voltage sensor, an analog-to-digital converter and a wireless communication module, the analog-to-digital converter is electrically connected to the Hall voltage sensor, the wireless communication module is electrically connected to the analog-to-digital converter, and the Hall voltage sensor is electrically connected to the connecting pin.

2. The transmitter according to claim 1, characterized in that: The Hall voltage sensor comprises: A core body, a primary coil and a secondary coil are wound on the core body, the connecting pins include a first pin and a second pin, one end of the primary coil is connected to one end of the first pin, and the other end of the primary coil is connected to one end of the second pin.

3. The transmitter according to claim 2, characterized in that: The first pin and the second pin are arranged in parallel and spaced apart.

4. The transmitter according to claim 3, characterized in that: The shell is in a rectangular parallelepiped shape, and the first pin and the second pin are arranged perpendicular to the surface of the shell.

5. The transmitter according to claim 2, characterized in that: Also includes: A control chip, wherein the control chip is electrically connected to the analog-to-digital converter and the wireless communication module.

6. The transmitter according to claim 5, characterized in that: Also includes: An indicator light, the indicator light being arranged on the transmitter body or the housing; A voltage stabilizing module, the voltage stabilizing module is connected to the output end of the primary coil; The output end of the voltage stabilizing module is electrically connected to at least one of the control chip, the indicator light, and the wireless communication module.

7. The transmitter according to claim 1, characterized in that: Also includes: An indicator light is arranged on the transmitter body or the shell.

8. The transmitter according to claim 7, characterized in that: There are multiple indicator lights, and the multiple indicator lights are arranged at intervals.

9. The transmitter according to claim 1, characterized in that: The shell is provided with a chamber, and the transmitter body is arranged in the chamber.

10. The transmitter according to claim 1, characterized in that: The shell is made of insulating material.

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