CN206609541U - A wireless temperature sensor - Google Patents

Abstract

The utility model discloses a wireless temperature sensor, including the metal protection tube, the temperature measurement unit, wireless transmission module, and a housing, three-core round sheath line and three-dimensional head, temperature measurement unit and wireless transmission module all set up in the metal protection tube, three-core round sheath line sets up in the shell, the temperature measurement unit includes DS18B20 chip and the power pin that draws forth from DS18B20 chip, signal pin and ground pin, the welding has thermistor on the power pin, signal pin and ground pin switch-on with three wires of three-core round sheath line respectively, three wires of three-core round sheath line are connected with the tail end contact of three-dimensional head respectively, middle-end contact and top contact, wireless transmission module passes through the wire and is connected with DS18B20 chip; this wireless temperature sensor is provided with wireless transmission module, can record temperature data with the temperature measurement unit and transmit for the receiving terminal, and this wireless temperature sensor simple structure is furnished with the third dimension head, can plug and play.

Description

A wireless temperature sensor

technical field

The utility model relates to a wireless temperature sensor.

Background technique

Temperature sensors are commonly used in many applications to measure temperature. In the current technology market, the types of temperature sensors include: thermistors, thermocouples, semiconductors, integrated digital, etc., usually connected by cables or directly soldered to the control circuit board. The sensors with cables are not equipped with plugs, and the line cards are directly used to fix them to the terminal posts of the controller with screws, which cannot be plug-and-play, and cannot realize the wireless transmission function.

Utility model content

The technical problem to be solved by the utility model is to provide a plug-and-play temperature sensor capable of realizing the wireless transmission function.

In order to solve the above problems, the utility model adopts the following technical solutions:

A wireless temperature sensor, including a metal protection tube, a temperature measurement unit, a wireless transmission module, a casing, a three-core round sheathed wire and a three-dimensional head, the temperature measurement unit and the wireless transmission module are both arranged in the metal protection tube, and the three The core round sheath wire is set in the shell, the temperature measuring unit includes a DS18B20 chip and power pins, signal pins and ground pins drawn from the DS18B20 chip, a thermistor is welded on the power pin, and the The power supply pin, the signal pin and the ground pin are respectively connected to the three wires of the three-core round sheathed wire, and the three wires of the three-core round sheathed wire are respectively connected to the tail end contact and the middle end contact of the three-dimensional head. It is connected with the top contact, and the wireless transmission module is connected with the DS18B20 chip through wires.

Preferably, the metal protection tube is a stainless steel protection tube. Stainless steel has the characteristics of heat resistance, high temperature resistance and corrosion resistance.

Preferably, the stainless steel protection tube has a diameter of 6mm and a length of 30mm. Small size and small footprint.

Preferably, the thermistor is encapsulated by a glass diode. Thermistors are packaged in glass and can be used in harsh environments such as high temperature and high humidity.

Preferably, the power pins and the ground pins are covered with heat-shrinkable sleeves, and the signal pins are covered with Teflon sleeves. The heat-shrinkable sleeve has the characteristics of flame retardancy, insulation, and good temperature resistance. The Teflon sleeve has the characteristics of high temperature resistance, wear resistance, corrosion resistance, non-sticking and weathering resistance.

Preferably, the wireless transmission module is a wireless communication module.

The beneficial effects of the utility model are: the wireless temperature sensor is provided with a wireless transmission module, receives the temperature data measured by the temperature measuring unit, and transmits the measured temperature data to the receiving end. The wireless temperature sensor adopts a DS18B20 chip, which has a small size, Low hardware overhead, strong anti-interference ability, and high precision. The wireless temperature sensor is simple in structure, equipped with a three-dimensional head, and can be plugged and played. The wireless temperature sensor is equipped with a stainless steel protection tube, which has heat resistance, high temperature resistance, and Corrosion characteristics, the thermistor of this wireless temperature sensor is packaged in a glass diode, which can be used in harsh environments such as high temperature and high humidity.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the present invention. For example, those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative efforts.

FIG. 1 is a schematic structural diagram of a wireless temperature sensor of the present invention.

Fig. 2 is a structural schematic diagram of a DS18B20 chip of a wireless temperature sensor of the present invention.

detailed description

Example 1

As shown in Figure 1-2, a wireless temperature sensor includes a stainless steel protection tube 1, a temperature measurement unit, a wireless communication module 9, a three-core round sheathed wire 2, a three-dimensional head 3 and a housing 10, and a three-core round sheathed wire 2. Set in the casing 10, the casing 10 is injection molded with white rubber, the wireless communication module 9 and the temperature measurement unit are set in the stainless steel protection tube 1, the wireless communication module 9 can be a general wireless communication module on the market, and the temperature measurement unit includes The DS18B20 chip 4 and the power supply pin VCC5, signal pin DQ6 and ground pin GND7 drawn from the DS18B20 chip 4, the wireless communication module 9 is connected with the DS18B20 chip 4 through wires, receives the temperature data measured by the temperature measuring unit, and transmits the measured The temperature data is transmitted to the receiving end. The thermistor 8 is welded on the power supply pin VCC5. The thermistor 8 is encapsulated by a glass diode. Pin VCC5 and ground pin GND7 are covered with heat-shrinkable sleeves (not shown). The heat-shrinkable sleeves (not shown) have the characteristics of flame retardancy, insulation, and temperature resistance. The signal pin DQ6 is covered with Teflon sleeves. (not shown), the Teflon sleeve (not shown) has the characteristics of high temperature resistance, wear resistance, corrosion resistance, non-sticking and weathering resistance, etc. The DS18B20 chip 4 is located in the stainless steel protection tube 1, and the stainless steel protection tube 1 adopts a 6mm inner diameter Plug stainless steel tube with a length of 30mm, small size and small space occupation. The stainless steel protection tube 1 has the characteristics of heat resistance, high temperature resistance and corrosion resistance. The power pin VCC5, signal pin DQ6 and ground pin GND7 are respectively connected to three Weld one end of the three wires L1, L2, and L3 of the core round sheath wire 2, and then connect the other ends of the three wires L1, L2, and L3 of the three-core round sheath wire 2 to the tail end contact and top end of the three-dimensional head 1 respectively. The contact and the middle contact are welded, that is, one end of the wire L1 is welded with the power pin VCC5, the other end is welded with the tail end of the stereo head 1, one end of the wire L2 is welded with the signal pin DQ6, and the other end is connected with the stereo head 1. The top contact is welded, one end of the wire L3 is welded to the ground pin GND7, and the other end is welded to the middle contact of the stereo head 1, the tail contact of the stereo head 1 is the contact close to the direction of the DS18B20 chip 4, and the welding point After being insulated from the pins, it is packaged with white glue and put into the stainless steel protection tube 1.

The beneficial effects of this embodiment are: the wireless temperature sensor is provided with a wireless transmission module, receives the temperature data measured by the temperature measuring unit, and transmits the measured temperature data to the receiving end. The wireless temperature sensor adopts a DS18B20 chip, which has a small size, Low hardware overhead, strong anti-interference ability, and high precision. The wireless temperature sensor is simple in structure, equipped with a three-dimensional head, and can be plugged and played. The wireless temperature sensor is equipped with a stainless steel protection tube, which has heat resistance, high temperature resistance, and Corrosion characteristics, the thermistor of this wireless temperature sensor is packaged in a glass diode, which can be used in harsh environments such as high temperature and high humidity.

The above is only a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto, and any change or replacement that is not thought of through creative work should be covered within the scope of protection of the utility model .

Claims (6)

1. a kind of radio temperature sensor, it is characterised in that：Including protection metal pipe, temperature measuring unit, wireless transport module, outer Shell, three cores circle RVV and three-dimensional head, the temperature measuring unit and wireless transport module are arranged in protection metal pipe, and described three Core circle RVV is arranged in shell, and the temperature measuring unit includes DS18B20 chips and the power supply drawn from DS18B20 chips Thermistor, the power pins, signal pins and ground are welded with pin, signal pins and ground pin, the power pins Three wires that pin justifies RVV with three cores respectively are connected, three wires of three core circle RVV respectively with three-dimensional head Tail end contact, middle terminal contacts are connected with top contact, and the wireless transport module is connected by wire with DS18B20 chips.

2. radio temperature sensor according to claim 1, it is characterised in that：The protection metal pipe is stainless steel protection Pipe.

3. radio temperature sensor according to claim 2, it is characterised in that：The stainless steel protection pipe it is a diameter of 6mm, length is 30mm.

4. radio temperature sensor according to claim 1, it is characterised in that：The thermistor is sealed by glass diode Dress.

5. radio temperature sensor according to claim 1, it is characterised in that：The power pins and ground pin cover heat Heat-Shrinkable Tubings, the signal pins cover Teflon sleeve pipe.

6. radio temperature sensor according to claim 1, it is characterised in that：The wireless transport module is radio communication Module.