An automatic constant temperature control circuit for outdoor communication equipment

Abstract

The utility model provides an automatic constant temperature control circuit for outdoor communication equipment, including a main control circuit, a power supply voltage adjustment circuit, a device temperature acquisition circuit and a device temperature adjustment circuit, wherein the input end of the power supply voltage adjustment circuit is connected to the power supply of the outdoor communication equipment, the output end of the power supply voltage adjustment circuit is connected to the main control circuit, the device temperature acquisition circuit and the device temperature adjustment circuit, the output end of the device temperature acquisition circuit is connected to the input end of the main control circuit, the output end of the main control circuit is connected to the input end of the device temperature adjustment circuit, and the main control circuit can control the device temperature adjustment circuit to adjust the ambient temperature in the outdoor communication equipment according to the device temperature information fed back by the device temperature acquisition circuit. The beneficial effect of the utility model is that the temperature in the outdoor communication equipment can be kept within the normal working range of the electrical components.

Description

Technical Field

[0001] The utility model relates to the technical field of circuits, in particular to an automatic constant temperature control circuit for outdoor communication equipment. Background Art

[0002] Communication equipment, referred to as ICD in English, is the full name of Industrial Communication Device, including wired communication equipment and wireless communication equipment. In industrial environments, wired communication equipment mainly introduces solutions to serial communication, professional bus communication, industrial Ethernet communication, and conversion equipment between various communication protocols. Wireless communication equipment mainly includes wireless AP, wireless bridge, wireless network card, wireless lightning arrester, antenna and other equipment.

[0003] Outdoor communication equipment refers to communication equipment used outdoors, usually wireless communication equipment. Wireless communication equipment is relatively sophisticated and contains many electrical components, especially various types of chips, which also have certain requirements for ambient temperature. Due to the uncertain temperature of the outdoor environment, especially the low temperature in winter, it is easy to cause various chips in the wireless communication equipment to become abnormal, which in turn causes the outdoor communication equipment to fail to work properly, affecting people's user experience. Utility Model Content

[0004] In order to solve the problems in the prior art, the utility model provides an automatic constant temperature control circuit for outdoor communication equipment. By arranging a main control circuit, a power supply voltage adjustment circuit, an equipment temperature acquisition circuit and an equipment temperature adjustment circuit that cooperate with each other in the automatic constant temperature control circuit for outdoor communication equipment, the temperature in the outdoor communication equipment can be kept within the normal working range of the electrical components, thereby solving the problem in the prior art that the outdoor communication equipment is prone to electronic component failure due to low temperature and cannot work normally.

[0005] The utility model provides an automatic constant temperature control circuit for outdoor communication equipment, which is arranged in the outdoor communication equipment and comprises a main control circuit, a power supply voltage adjustment circuit, a device temperature acquisition circuit and a device temperature regulation circuit. The input end of the power supply voltage adjustment circuit is connected to the power supply of the outdoor communication equipment, the output end of the power supply voltage adjustment circuit is connected to the main control circuit, the device temperature acquisition circuit and the device temperature regulation circuit for power supply, the output end of the device temperature acquisition circuit is connected to the input end of the main control circuit, the output end of the main control circuit is connected to the input end of the device temperature regulation circuit, and the main control circuit can control the device temperature regulation circuit to adjust the ambient temperature in the outdoor communication equipment according to the device temperature information fed back by the device temperature acquisition circuit.

[0006] The utility model is further improved, the power supply voltage adjustment circuit is provided with a voltage adjustment chip U0908, a capacitor C0994, a capacitor C0989 and a diode D0905, wherein the voltage adjustment chip U0908 is provided with 3 pins, the second pin of the voltage adjustment chip U0908 is connected to the cathode of the diode D0905 and one end of the capacitor C0994, the anode of the diode D0905 is connected to the power supply of the outdoor communication equipment, the third pin of the voltage adjustment chip U0908 is connected to one end of the capacitor C0989, the input end of the main control circuit, the input end of the device temperature acquisition circuit, and the input end of the device temperature adjustment circuit, and the first pin of the voltage adjustment chip U0908, the other end of the capacitor C0994, and the other end of the capacitor C0989 are grounded.

[0007] The utility model is further improved, the main control circuit is provided with a main control chip U0904 and a capacitor C0990, wherein the main control chip U0904 is provided with 8 pins, the first pin of the main control chip U0904 is connected to the third pin of the voltage adjustment chip U0908 and one end of the capacitor C0990, the sixth and seventh pins of the main control chip U0904 are connected to the output end of the device temperature acquisition circuit, the fifth pin of the main control chip U0904 is connected to the input end of the device temperature adjustment circuit, and the other end of the capacitor C0990 is grounded.

[0008] The utility model is further improved, the device temperature regulation circuit is provided with a field effect tube Q0902, a field effect tube Q0903, a resistor R0924, a resistor R0937 and a heating plate J0901, wherein the source of the field effect tube Q0902 is connected to the power supply of the outdoor communication equipment, the drain of the field effect tube Q0902 is connected to one end of the heating plate J0901, the gate of the field effect tube Q0902 is connected to the drain of the field effect tube Q0903, the gate of the field effect tube Q0903 is connected to one end of the resistor R0924, the other end of the resistor R0924 is connected to one end of the resistor R0937 and the 5th pin of the main control chip U0904, the other end of the resistor R0937 is connected to the 3rd pin of the voltage adjustment chip U0908, and the source of the field effect tube Q0903 and the other end of the heating plate J0901 are grounded.

[0009] The utility model is further improved. The device temperature acquisition circuit is provided with a temperature sensing chip U0905. The temperature sensing chip U0905 is provided with 8 pins. The 2nd and 1st pins of the temperature sensing chip U0905 are respectively connected to the 6th and 7th pins of the main control chip U0904, and the 8th pin of the temperature sensing chip U0905 is connected to the 3rd pin of the voltage adjustment chip U0908.

[0010] The utility model is further improved, and the model of the voltage adjustment chip U0908 is BL8078CC3TR.

[0011] The utility model is further improved, and the model of the main control chip U0904 is MC30P6060.

[0012] The utility model is further improved, and the model of the temperature sensing chip U0905 is LM75ADP.

[0013] Compared with the prior art, the beneficial effects of the utility model are: providing an automatic constant temperature control circuit for outdoor communication equipment, by arranging a main control circuit, a power supply voltage adjustment circuit, a device temperature acquisition circuit and a device temperature regulation circuit that cooperate with each other in the automatic constant temperature control circuit for the outdoor communication equipment, the main control circuit can control the device temperature regulation circuit to adjust the ambient temperature in the outdoor communication equipment according to the device temperature information fed back by the device temperature acquisition circuit, and can keep the temperature in the outdoor communication equipment within the normal working range of the electrical components, avoiding the failure of various chips in the outdoor communication equipment due to low temperature, improving the stability of the outdoor communication equipment, greatly improving the user experience, and solving the problem in the prior art that the outdoor communication equipment is prone to failure of electronic components due to low temperature and cannot work normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a principle block diagram of an automatic constant temperature control circuit for outdoor communication equipment of the utility model;

[0016] Figure 2 This is a circuit diagram of an automatic constant temperature control circuit for outdoor communication equipment of the utility model;

[0017] Figure 3This is a circuit diagram of an automatic constant temperature control circuit for outdoor communication equipment of the utility model;

[0018] Figure 4 This is a circuit diagram of an automatic constant temperature control circuit for outdoor communication equipment of the utility model;

[0019] Figure 5 The utility model is a circuit diagram of an automatic constant temperature control circuit for outdoor communication equipment. DETAILED DESCRIPTION

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present utility model; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model; the terms "including" and "having" and any variations thereof in the specification and claims of the present utility model and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present utility model or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order.

[0021] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0022] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0023] like Figure 1-5As shown, the utility model provides an automatic constant temperature control circuit for outdoor communication equipment, which is arranged in the outdoor communication equipment, including a main control circuit, a power supply voltage adjustment circuit, a device temperature acquisition circuit and a device temperature adjustment circuit, the input end of the power supply voltage adjustment circuit is connected to the power supply of the outdoor communication equipment, the output end of the power supply voltage adjustment circuit is connected to the main control circuit, the device temperature acquisition circuit, and the device temperature adjustment circuit, the output end of the device temperature acquisition circuit is connected to the input end of the main control circuit, and the output end of the main control circuit is connected to the input end of the device temperature adjustment circuit. In this embodiment, the main control circuit can control the device temperature adjustment circuit to adjust the ambient temperature in the outdoor communication equipment according to the device temperature information fed back by the device temperature acquisition circuit, and can keep the temperature in the outdoor communication equipment within the normal working range of the electrical components, avoid the failure of various chips in the outdoor communication equipment due to low temperature, improve the stability of the outdoor communication equipment, and greatly improve the user experience.

[0024] like Figure 2 As shown, the power supply voltage adjustment circuit is provided with a voltage adjustment chip U0908, a capacitor C0994, a capacitor C0989 and a diode D0905, wherein the model of the voltage adjustment chip U0908 is BL8078CC3TR, and the voltage adjustment chip U0908 is provided with 3 pins, the second pin of the voltage adjustment chip U0908 is connected to the cathode of the diode D0905 and one end of the capacitor C0994, the anode of the diode D0905 is connected to the power supply of the outdoor communication device, the third pin of the voltage adjustment chip U0908 is connected to one end of the capacitor C0989, the input end of the main control circuit, the input end of the device temperature acquisition circuit, and the input end of the device temperature adjustment circuit, and the first pin of the voltage adjustment chip U0908, the other end of the capacitor C0994, and the other end of the capacitor C0989 are grounded. In this embodiment, the power supply voltage adjustment circuit is used to adjust the power supply voltage of the outdoor communication device and to supply power to the main control circuit, the device temperature acquisition circuit, and the device temperature adjustment circuit.

[0025] like Figure 3As shown, the main control circuit is provided with a main control chip U0904 and a capacitor C0990, wherein the model of the main control chip U0904 is MC30P6060, and the main control chip U0904 is provided with 8 pins, the first pin of the main control chip U0904 is connected to the third pin of the voltage adjustment chip U0908 and one end of the capacitor C0990, the sixth and seventh pins of the main control chip U0904 are connected to the output end of the device temperature acquisition circuit, the fifth pin of the main control chip U0904 is connected to the input end of the device temperature adjustment circuit, and the other end of the capacitor C0990 is grounded. In this embodiment, the main control circuit is used to control the device temperature adjustment circuit to adjust the ambient temperature in the outdoor communication device according to the device temperature information fed back by the device temperature acquisition circuit.

[0026] like Figure 4 As shown, the device temperature adjustment circuit is provided with a field effect transistor Q0902, a field effect transistor Q0903, a resistor R0924, a resistor R0937 and a heating plate J0901, wherein the source of the field effect transistor Q0902 is connected to the power supply of the outdoor communication equipment, the drain of the field effect transistor Q0902 is connected to one end of the heating plate J0901, the gate of the field effect transistor Q0902 is connected to the drain of the field effect transistor Q0903, the gate of the field effect transistor Q0903 is connected to one end of the resistor R0924, the other end of the resistor R0924 is connected to one end of the resistor R0937 and the 5th pin of the main control chip U0904, the other end of the resistor R0937 is connected to the 3rd pin of the voltage adjustment chip U0908, and the source of the field effect transistor Q0903 and the other end of the heating plate J0901 are grounded. In this embodiment, the device temperature regulating circuit is used to heat the ambient temperature in the outdoor communication device, so as to ensure that the ambient temperature in the outdoor communication device is within the range of normal operation of the electrical components.

[0027] like Figure 5 As shown, the device temperature acquisition circuit is provided with a temperature sensing chip U0905, the model of the temperature sensing chip U0905 is LM75ADP, and the temperature sensing chip U0905 is provided with 8 pins, the 2nd and 1st pins of the temperature sensing chip U0905 are respectively connected to the 6th and 7th pins of the main control chip U0904, and the 8th pin of the temperature sensing chip U0905 is connected to the 3rd pin of the voltage adjustment chip U0908. In this embodiment, the device temperature acquisition circuit is used to obtain the ambient temperature in the outdoor communication device and feed it back to the main control circuit.

[0028] It can be seen from the above that the utility model provides an automatic constant temperature control circuit for outdoor communication equipment. By arranging a main control circuit, a power supply voltage adjustment circuit, a device temperature acquisition circuit and a device temperature regulation circuit that cooperate with each other in the automatic constant temperature control circuit for the outdoor communication equipment, the main control circuit can control the device temperature regulation circuit to adjust the ambient temperature in the outdoor communication equipment according to the device temperature information fed back by the device temperature acquisition circuit, and can keep the temperature in the outdoor communication equipment within the normal working range of the electrical components, avoiding the failure of various chips in the outdoor communication equipment due to low temperature, improving the stability of the outdoor communication equipment, greatly improving the user experience, and solving the problem in the prior art that the outdoor communication equipment is prone to failure of electronic components due to low temperature and cannot work normally.

[0029] The specific implementation methods described above are preferred implementation methods of the present utility model, and are not intended to limit the specific implementation scope of the present utility model. The scope of the present utility model includes but is not limited to the specific implementation methods. All equivalent changes made in accordance with the present utility model are within the protection scope of the present utility model.

Claims

1. An automatic constant temperature control circuit for outdoor communication equipment, arranged in the outdoor communication equipment, characterized in that: It includes a main control circuit, a power supply voltage adjustment circuit, a device temperature acquisition circuit and a device temperature adjustment circuit. The input end of the power supply voltage adjustment circuit is connected to the power supply of the outdoor communication device, the output end of the power supply voltage adjustment circuit is connected to the main control circuit, the device temperature acquisition circuit and the device temperature adjustment circuit for power supply, the output end of the device temperature acquisition circuit is connected to the input end of the main control circuit, the output end of the main control circuit is connected to the input end of the device temperature adjustment circuit, and the main control circuit can control the device temperature adjustment circuit to adjust the ambient temperature in the outdoor communication device according to the device temperature information fed back by the device temperature acquisition circuit.

2. The automatic constant temperature control circuit for outdoor communication equipment according to claim 1, characterized in that: The power supply voltage adjustment circuit is provided with a voltage adjustment chip U0908, a capacitor C0994, a capacitor C0989 and a diode D0905, wherein the voltage adjustment chip U0908 is provided with 3 pins, the second pin of the voltage adjustment chip U0908 is connected to the cathode of the diode D0905 and one end of the capacitor C0994, the anode of the diode D0905 is connected to the power supply of the outdoor communication equipment, the third pin of the voltage adjustment chip U0908 is connected to one end of the capacitor C0989, the input end of the main control circuit, the input end of the device temperature acquisition circuit, and the input end of the device temperature adjustment circuit, and the first pin of the voltage adjustment chip U0908, the other end of the capacitor C0994, and the other end of the capacitor C0989 are grounded.

3. The automatic constant temperature control circuit for outdoor communication equipment according to claim 2, characterized in that: The main control circuit is provided with a main control chip U0904 and a capacitor C0990, wherein the main control chip U0904 is provided with 8 pins, the first pin of the main control chip U0904 is connected to the third pin of the voltage adjustment chip U0908 and one end of the capacitor C0990, the sixth and seventh pins of the main control chip U0904 are connected to the output end of the device temperature acquisition circuit, the fifth pin of the main control chip U0904 is connected to the input end of the device temperature adjustment circuit, and the other end of the capacitor C0990 is grounded.

4. The automatic constant temperature control circuit for outdoor communication equipment according to claim 3, characterized in that: The device temperature regulation circuit is provided with a field effect transistor Q0902, a field effect transistor Q0903, a resistor R0924, a resistor R0937 and a heating plate J0901, wherein the source of the field effect transistor Q0902 is connected to the power supply of the outdoor communication equipment, the drain of the field effect transistor Q0902 is connected to one end of the heating plate J0901, the gate of the field effect transistor Q0902 is connected to the drain of the field effect transistor Q0903, the gate of the field effect transistor Q0903 is connected to one end of the resistor R0924, the other end of the resistor R0924 is connected to one end of the resistor R0937 and the 5th pin of the main control chip U0904, the other end of the resistor R0937 is connected to the 3rd pin of the voltage adjustment chip U0908, and the source of the field effect transistor Q0903 and the other end of the heating plate J0901 are grounded.

5. The automatic constant temperature control circuit for outdoor communication equipment according to claim 4, characterized in that: The device temperature acquisition circuit is provided with a temperature sensing chip U0905, and the temperature sensing chip U0905 is provided with 8 pins. The 2nd and 1st pins of the temperature sensing chip U0905 are respectively connected to the 6th and 7th pins of the main control chip U0904, and the 8th pin of the temperature sensing chip U0905 is connected to the 3rd pin of the voltage adjustment chip U0908.

6. The automatic constant temperature control circuit for outdoor communication equipment according to claim 5, characterized in that: The model of the voltage adjustment chip U0908 is BL8078CC3TR.

7. The automatic constant temperature control circuit for outdoor communication equipment according to claim 6, characterized in that: The model of the main control chip U0904 is MC30P6060.

8. The automatic constant temperature control circuit for outdoor communication equipment according to claim 7, characterized in that: The model of the temperature sensing chip U0905 is LM75ADP.

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