Small wireless thermodetector and wireless temperature measurement system comprising same

Abstract

The utility model provides a small-sized wireless temperature measuring instrument and a wireless temperature measuring system comprising the same. The thermodetector comprises a housing which is provided with a first opening end and a second opening end which are opposite to each other; the heat conduction head is arranged on the first opening end and is internally provided with a temperature sensor; the temperature measuring instrument circuit is arranged in the shell, electrically connected to the temperature sensor and used for collecting, storing and transmitting temperature data; the button battery for supplying power to a circuit of the temperature measuring instrument can be installed in a vertical posture, and in the installation state, the two sides of the button battery are tightly attached to the inner wall of the shell so that the maximum diameter of the temperature measuring instrument can be limited to be the sum of the battery diameter and the two times of the wall thickness of the shell, or the two sides of the button battery are tightly attached to the inner wall of the shell. A first opening and a second opening are formed in the positions, corresponding to the two sides of the button cell, of the shell respectively, and the two sides of the button cell exceed the corresponding openings respectively or are located in the corresponding openings respectively; and the end cover is arranged on the second opening end. The small wireless thermodetector provided by the utility model is suitable for measuring the internal temperature of a small-caliber container due to the small diameter of the small wireless thermodetector.

Description

Technical Field

[0001] This utility model belongs to the field of temperature measurement, and more specifically, relates to a small wireless thermometer and a wireless temperature measurement system including the same. Background Technology

[0002] In related technologies, a type of small-diameter container, such as headspace vials, vaccine / drug cold chain transport bottles, and bioreactors / cell culture flasks, needs to be sealed during use and its internal temperature needs to be monitored in real time to ensure the accuracy of the experimental test results related to the container, the effectiveness of the objects contained in the container, and the quality of the objects cultured in the container.

[0003] Generally speaking, the ideal way to measure the temperature of the aforementioned small-diameter containers is to use a built-in wireless thermometer. This is because using a built-in wireless thermometer eliminates the need to drill holes in the container, ensuring its airtightness, and allows for direct measurement of the container's internal temperature, resulting in accurate temperature measurements.

[0004] However, existing built-in wireless thermometers often cannot meet the size requirements of the small-diameter containers mentioned above due to their structural design. In other words, the built-in wireless thermometer is too large to pass through the narrow opening of the container. Therefore, these small-diameter containers typically use external wireless thermometers for temperature monitoring. However, this method has two main problems:

[0005] I. One type of external wireless thermometer has its temperature sensor installed inside the container and the main body of the thermometer installed outside the container. The temperature sensor and the main body of the thermometer are connected by a wire. However, the presence of the wire requires drilling holes in the container body or the sealing cap, which will inevitably affect the sealing performance of the container to some extent.

[0006] Second, another type of external wireless temperature measuring instrument reflects the temperature inside the container by measuring the temperature of the outer wall of the container. Although this method can ensure the sealing of the container, the accuracy of its temperature measurement results is low and it cannot truly reflect the internal temperature of the container.

[0007] Based on the above, it is necessary to propose a small-sized built-in wireless thermometer to meet the internal temperature measurement needs of the aforementioned small-diameter containers. Utility Model Content

[0008] In view of this, the present invention provides a small wireless thermometer and a wireless temperature measurement system including the same.

[0009] According to a first aspect of the present invention, a small wireless thermometer is provided, the small wireless thermometer comprising:

[0010] A housing having a first open end and a second open end disposed opposite each other in its axial direction;

[0011] A heat-conducting head is disposed on the first open end, and a temperature sensor is disposed inside the heat-conducting head;

[0012] The temperature measuring circuit is housed within the housing and electrically connected to the temperature sensor, and is used to acquire, store, and transmit temperature data.

[0013] A button cell battery is used to power the temperature sensing circuit, and the button cell battery is configured to be installed in an upright position.

[0014] The installed button battery is completely housed within the casing, thus limiting the maximum diameter of the small wireless thermometer to the sum of the button battery diameter and twice the casing wall thickness.

[0015] or,

[0016] On both sides of the housing, at positions corresponding to the two semi-circular arc surfaces of the installed button battery, a first opening and a second opening are respectively provided. The front ends of the two semi-circular arc surfaces extend beyond the first opening and the second opening respectively to limit the maximum diameter of the small wireless thermometer to the diameter of the button battery. Alternatively, the front ends of the two semi-circular arc surfaces are located within the first opening and the second opening respectively to limit the maximum diameter of the small wireless thermometer to the diameter of the button battery, the distance from the outer port of the first opening to the front end of the corresponding semi-circular arc surface, and the distance from the outer port of the second opening to the front end of the corresponding semi-circular arc surface.

[0017] An end cap is provided on the second open end.

[0018] Optionally, the temperature measuring instrument circuit includes a circuit board on which a main controller and its peripheral devices, a data transmission module and a power supply module are disposed, and the main controller is electrically connected to the temperature sensor.

[0019] A battery spring assembly is also provided on the circuit board, which is used to keep the button battery in a vertical mounting position.

[0020] Optionally, the temperature measuring instrument circuit includes:

[0021] A first circuit board is disposed inside the housing and near the first opening. A main controller and its peripheral devices, a data transmission module and a power supply module are disposed on the first circuit board. The main controller is electrically connected to the temperature sensor.

[0022] A second circuit board is disposed inside the housing and is located away from the first opening end relative to the first circuit board. A battery spring assembly is disposed on the second circuit board. The battery spring assembly is used to keep the button battery in a vertical mounting position. The button battery supplies power to the first circuit board via the second circuit board.

[0023] Optionally, the housing includes a first sub-housing and a second sub-housing, wherein the first sub-housing and the second sub-housing are coaxially connected to form the housing;

[0024] The first opening end is the port of the first sub-shell, and the second opening end is the port of the second sub-shell;

[0025] The second circuit board and the button battery are located inside the second sub-casing.

[0026] Alternatively, the first circuit board may be entirely located within the first housing, or a portion of the first circuit board may be located within the first housing and another portion of the first circuit board may be located within the second housing.

[0027] Fixing grooves for limiting and fixing the first circuit board are provided on both sides of the inner wall of the first housing.

[0028] Optionally, the heat-conducting head has a receiving cavity, the temperature sensor is located in the receiving cavity, and the space in the receiving cavity other than the temperature sensor is filled with a filler made of thermally conductive material.

[0029] Optionally, the battery spring assembly includes a first battery spring and a second battery spring disposed opposite to each other, the first battery spring and the second battery spring being configured to apply an axial fixing force to the button battery when the button battery is positioned vertically between them.

[0030] Optionally, the end cap is provided on the second opening end by means of a threaded connection;

[0031] The end cap is configured to limit the button battery when it is threaded into place with the second open end.

[0032] Optionally, the small wireless thermometer also includes a light guide;

[0033] The peripheral devices of the main controller include indicator lights;

[0034] The light guide is embedded in the housing and is used to conduct the light emitted by the indicator light.

[0035] According to a second aspect of the present invention, a wireless temperature measurement system is provided, the wireless temperature measurement system comprising a data acquisition and analysis terminal with wireless communication function, and any of the above-mentioned small wireless temperature measuring instruments.

[0036] The beneficial effects of this utility model are as follows:

[0037] The present invention discloses a small wireless thermometer in which the button battery is configured to be installed vertically, with the installed button battery completely embedded in the housing, thereby limiting the maximum diameter of the small wireless thermometer to the sum of the button battery diameter and twice the housing wall thickness; or, a first opening and a second opening are respectively provided on both sides of the housing at positions corresponding to the two semi-circular arc surfaces of the installed button battery, with the front ends of the two semi-circular arc surfaces extending beyond the first opening and the second opening respectively, thereby limiting the maximum diameter of the small wireless thermometer to the button battery diameter; or, the front ends of the two semi-circular arc surfaces are respectively located within the first opening and the second opening, thereby limiting the maximum diameter of the small wireless thermometer to the sum of the button battery diameter, the distance from the outer port of the first opening to the front end of the corresponding semi-circular arc surface, and the distance from the outer port of the second opening to the front end of the corresponding semi-circular arc surface.

[0038] As can be seen from the above, the maximum diameter of the miniature wireless thermometer of this invention is only related to, or mainly related to, the diameter of the button battery. Therefore, when the diameter of the available button battery is small enough, the outer diameter of the miniature wireless thermometer of this invention can also be made as small as possible, thus making the miniature wireless thermometer of this invention suitable for measuring the internal temperature of containers with small openings.

[0039] The wireless temperature measurement system of this utility model belongs to the same general inventive concept as the aforementioned small wireless temperature measuring instrument, and has at least the same beneficial effects as the aforementioned small wireless temperature measuring instrument, the beneficial effects of which will not be elaborated here.

[0040] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0041] This invention can be better understood by referring to the following description taken in conjunction with the accompanying drawings, in which the same or similar reference numerals are used throughout the drawings to denote the same or similar parts.

[0042] Figure 1 A cross-sectional view of a small wireless thermometer according to an embodiment of the present invention is shown below the first cutting plane;

[0043] Figure 2 A cross-sectional view of a small wireless thermometer according to an embodiment of the present invention is shown below the second cutting plane.

[0044] Figure 3 A schematic block diagram of a wireless temperature measurement system according to an embodiment of the present invention is shown. Detailed Implementation

[0045] To enable those skilled in the art to more fully understand the technical solution of this utility model, exemplary embodiments of this utility model will be described more comprehensively and in detail below with reference to the accompanying drawings. Obviously, the one or more embodiments of this utility model described below are merely one or more specific ways to implement the technical solution of this utility model, and are not exhaustive. It should be understood that other ways belonging to a general inventive concept can be used to implement the technical solution of this utility model, and it should not be limited to the embodiments described exemplary. Based on one or more embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0046] Example: Figure 1 A cross-sectional view of a small wireless thermometer according to an embodiment of the present invention is shown below the first cutting plane. Figure 2 A cross-sectional view of a small wireless thermometer according to an embodiment of the present invention is shown below the second cutting plane. (Refer to...) Figure 1 and Figure 2 The miniature wireless temperature measuring instrument of this utility model embodiment includes:

[0047] The housing 100 has a first open end and a second open end disposed opposite to each other in its axial direction, and the housing 100 is cylindrical or prismatic.

[0048] A heat-conducting head 200 is disposed on the first open end of the housing 100, and a temperature sensor 300 is disposed inside the heat-conducting head 200.

[0049] The first circuit board 400 is disposed inside the housing 100 and near its first opening. The first circuit board 400 is provided with a main controller and its peripheral devices, a data transmission module with wireless transmission function and a power module. The main controller is electrically connected to the temperature sensor 300.

[0050] A second circuit board 500 is disposed within the housing 100 and at a first opening relative to the first circuit board 400 away from the housing 100. A battery spring assembly 600 is disposed on the second circuit board 500. The battery spring assembly 600 is used to partially mount the button battery 700 vertically within the housing 100. A first opening and a second opening are respectively provided on both sides of the housing 100 at positions corresponding to the two semi-circular arc surfaces of the button battery 700 after installation. The front ends of the two semi-circular arc surfaces extend beyond the first opening and the second opening respectively to limit the maximum diameter of the small wireless thermometer to the diameter of the button battery 700.

[0051] The button battery 700 supplies power to the first circuit board 400 via the second circuit board 500;

[0052] End cap 800 is disposed on the second open end of housing 100.

[0053] Specifically, in this embodiment of the invention, on the one hand, by using a separately provided second circuit board 500 for carrying the battery and implementing power input, the first circuit board 400, which serves as the main control board, and the button battery 700 are sequentially distributed along the axial direction of the housing 100, thereby significantly reducing the radial dimension of the housing 100. On the other hand, the battery spring assembly 600 disposed on the second circuit board 500 allows the button battery 700 to be installed vertically inside the housing. After installation, the front ends of the two semi-circular arc surfaces of the button battery 700 extend beyond the first opening and the second opening located on the housing 100, respectively, thereby limiting the maximum diameter of the small wireless thermometer to the diameter of the button battery 700. Based on the above two aspects, it can be seen that, due to the corresponding structural design, the maximum diameter of the small wireless thermometer is equal to the diameter of the button battery 700 in this embodiment of the invention, and the maximum diameter of the small wireless thermometer is only limited by the size of the button battery. Therefore, with the available button battery 700 having a sufficiently small diameter, the maximum diameter of the small wireless thermometer of this utility model embodiment can also be made as small as possible, thus making it suitable for measuring the internal temperature of containers with small openings.

[0054] Specifically, as an optional implementation, the installed button battery 700 is completely integrated into the housing 100, so that the maximum diameter of the small wireless thermometer is limited to the sum of the button battery diameter and twice the housing wall thickness. As another optional implementation, the front ends of the two semicircular surfaces of the installed button battery 700 are respectively located within the first opening and the second opening, so that the maximum diameter of the small wireless thermometer is limited to the sum of the button battery diameter, the distance from the outer port of the first opening to the front end of the corresponding semicircular surface, and the distance from the outer port of the second opening to the front end of the corresponding semicircular surface.

[0055] Specifically, in this embodiment of the present invention, the first circuit board 400 is a main control board with temperature acquisition, storage, and wireless transmission functions. The first circuit board 400 is equipped with a main controller and its peripheral devices, a data transmission module, and a power module. The peripheral devices include crystal oscillators, indicator lights, and memory devices. The power module supplies power to the various electrical components on the first circuit board 400 based on the voltage provided by the button battery 700.

[0056] Furthermore, in this embodiment of the present invention, the housing 100 includes a first sub-housing 110 and a second sub-housing 120, wherein the first sub-housing 110 and the second sub-housing 120 are coaxially connected to form the housing 100;

[0057] The first opening end of the housing 100 is the port of the first sub-housing 110, and the second opening end of the housing 100 is the port of the second sub-housing 120;

[0058] The second circuit board 500 and the button battery 700 are located inside the second sub-casing 120.

[0059] Specifically, in this embodiment of the present invention, the first sub-shell 110, the second sub-shell 120, and the end cap 800 can be made of metal materials, such as stainless steel or aluminum alloy, or they can be made of non-metallic materials. The heat-conducting head 200 is made of a metal material with high thermal conductivity, such as copper and its alloys, aluminum and its alloys, etc. The heat-conducting head 200 is fixedly mounted on the first open end of the shell 100 by adhesive or threaded connection.

[0060] Specifically, in this embodiment of the present invention, the first sub-shell 110 and the second sub-shell 120 are coaxially connected by screws, adhesive, or threaded connections; the second circuit board 500 and the button battery 700 are both located inside the second sub-shell 120; the first circuit board 400 is completely located inside the first sub-shell 110, or most of the first circuit board 400 is located inside the first sub-shell 110, with the remaining small portion extending into the second sub-shell 120; fixing grooves for limiting and fixing the first circuit board 400 are provided on both sides of the inner wall of the first shell 110.

[0061] Furthermore, in this embodiment of the present invention, a receiving cavity is formed inside the heat-conducting head 200, the temperature sensor 300 is located inside the receiving cavity, and a filler made of thermally conductive material is provided in the space of the receiving cavity other than the temperature sensor 300.

[0062] Specifically, in this embodiment of the invention, the filler inside the cavity is made of thermally conductive adhesive or grease with excellent thermal conductivity to ensure thermal conductivity between the heat-conducting head 200 and the temperature sensor 300. The temperature sensor 300 is implemented using an NTC thermistor, a PTC thermistor, a thermocouple, or an IC-type temperature-sensitive device.

[0063] Furthermore, in this embodiment of the present invention, the battery spring assembly 600 includes a first battery spring 610 and a second battery spring 620 disposed opposite to each other. The first battery spring 610 and the second battery spring 620 are configured to apply an axial fixing force to the button battery 700 when the button battery 700 is located between them in a vertical position.

[0064] Furthermore, in this embodiment of the present invention, the end cap 800 is disposed on the second open end of the housing 100 by means of a threaded connection;

[0065] The end cap 800 is configured to apply pressure to the button cell 700 when it is threaded into place with the second open end of the housing 100, so that the button cell 700 is in close contact with the second circuit board 500.

[0066] Specifically, in this embodiment of the invention, the first battery spring 610 and the second battery spring 620 cooperate to axially limit the button battery 700, and the end cap 800, which is in the threaded connection position, cooperates with the second circuit board 500 to radially limit the button battery 700, thereby fixing the button battery 700 inside the second sub-casing 120. The positive and negative terminals of the installed button battery 700 are in close contact with the first battery spring 610 and the second battery spring 620, respectively, to ensure the reliability of the electrical connection between the button battery 700 and the second circuit board 500.

[0067] Specifically, in this embodiment of the invention, the second circuit board 500 is configured to only have the first battery spring 610 and the second battery spring 620, and to support the button battery 700. As an optional implementation, if the second circuit board 500 has sufficient space, some functional modules originally located on the first circuit board 400 can be moved to the second circuit board 500. For example, the data transmission module and / or power module can be transferred to the second circuit board 500, leaving only the main controller and its peripheral devices on the first circuit board 400. Of course, it is understood that if the second circuit board 500 has sufficient space, additional functional modules can be provided thereon to give the small wireless thermometer additional functions. Alternatively, without affecting the maximum diameter of the small wireless thermometer, the first circuit board 400 and the second circuit board 500 can be integrated into a single circuit board, and the battery spring assembly 600 can be placed on it.

[0068] Furthermore, in this embodiment of the present invention, the temperature sensor 300 is connected to the first circuit board 400 via a wire 900.

[0069] Furthermore, in this embodiment of the present invention, the second circuit board 500 and the first circuit board 400 are electrically connected by wires, welding or connectors.

[0070] Furthermore, the small wireless temperature measuring instrument of this utility model embodiment also includes a light guide 1000;

[0071] The peripheral components of the main controller include indicator lights;

[0072] The light guide 1000 is embedded in the housing 100 and is used to conduct the light emitted by the indicator light.

[0073] Furthermore, the miniature wireless thermometer of this utility model embodiment has a maximum diameter of 10-16 mm and an axial length of 40-50 mm.

[0074] Specifically, in this embodiment of the invention, the button battery 700 is preferably a 1225-sized, high- and low-temperature resistant button battery, meaning the battery diameter is 12mm and the thickness is 2.5mm. Using a button battery of this size, the outer diameter of the small wireless thermometer is only slightly larger than 12mm, making it suitable for most small-diameter containers. Simultaneously, the button battery has excellent high and low temperature resistance, thus enabling it to power the small wireless thermometer over a wide temperature range (e.g., -50 to 150°C), allowing the small wireless thermometer to perform temperature measurements in a wide temperature environment.

[0075] Accordingly, based on the small wireless thermometer of this utility model embodiment, this utility model embodiment also proposes a wireless temperature measurement system.

[0076] Figure 3 A schematic block diagram of the wireless temperature measurement system according to an embodiment of the present invention is shown. (Refer to...) Figure 3 The wireless temperature measurement system of this utility model embodiment includes several small wireless thermometers, a wireless receiving module, and a data acquisition and analysis terminal;

[0077] The number of small wireless thermometers can be one or more, used to collect and transmit temperature data in real time.

[0078] The wireless receiving module reads data from each small wireless thermometer in real time and performs real-time monitoring and analysis of the test data through the data acquisition and analysis terminal.

[0079] The wireless receiving module can communicate with one or more small wireless thermometers and collect temperature data from multiple points in real time via Bluetooth or Zigbee wireless communication technology (including wireless networking technology).

[0080] While one or more embodiments of the present invention have been described above, those skilled in the art will recognize that the present invention can be implemented in any other form without departing from its spirit and scope. Therefore, the embodiments described above are illustrative and not restrictive, and many modifications and substitutions will be apparent to those skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. A small wireless temperature measuring instrument, characterized in that, include: A housing having a first open end and a second open end disposed opposite each other in its axial direction; A heat-conducting head is disposed on the first open end, and a temperature sensor is disposed inside the heat-conducting head; The temperature measuring circuit is housed within the housing and electrically connected to the temperature sensor, and is used to acquire, store, and transmit temperature data. A button cell battery is used to power the circuitry of the thermometer, and the button cell battery is configured to be installed in an upright position. The installed button battery is completely housed within the casing, thus limiting the maximum diameter of the small wireless thermometer to the sum of the button battery diameter and twice the casing wall thickness. or, On both sides of the housing, at positions corresponding to the two semi-circular arc surfaces of the installed button battery, a first opening and a second opening are respectively provided. The front ends of the two semi-circular arc surfaces extend beyond the first opening and the second opening respectively to limit the maximum diameter of the small wireless thermometer to the diameter of the button battery. Alternatively, the front ends of the two semi-circular arc surfaces are located within the first opening and the second opening respectively to limit the maximum diameter of the small wireless thermometer to the diameter of the button battery, the distance from the outer port of the first opening to the front end of the corresponding semi-circular arc surface, and the distance from the outer port of the second opening to the front end of the corresponding semi-circular arc surface. An end cap is provided on the second open end.

2. The small wireless temperature measuring instrument according to claim 1, characterized in that, The temperature measuring instrument circuit includes a circuit board on which a main controller and its peripheral devices, a data transmission module and a power supply module are disposed. The main controller is electrically connected to the temperature sensor. A battery spring assembly is also provided on the circuit board, which is used to keep the button battery in a vertical mounting position.

3. The small wireless temperature measuring instrument according to claim 1, characterized in that, The temperature measuring instrument circuit includes: A first circuit board is disposed inside the housing and near the first opening. A main controller and its peripheral devices, a data transmission module and a power supply module are disposed on the first circuit board. The main controller is electrically connected to the temperature sensor. A second circuit board is disposed inside the housing and is located away from the first opening end relative to the first circuit board. A battery spring assembly is disposed on the second circuit board. The battery spring assembly is used to keep the button battery in a vertical mounting position. The button battery supplies power to the first circuit board via the second circuit board.

4. The small wireless temperature measuring instrument according to claim 3, characterized in that, The housing includes a first sub-housing and a second sub-housing, wherein the first sub-housing and the second sub-housing are coaxially connected to form the housing; The first opening end is the port of the first sub-shell, and the second opening end is the port of the second sub-shell; The second circuit board and the button battery are located inside the second sub-casing.

5. The small wireless temperature measuring instrument according to claim 4, characterized in that, The first circuit board is entirely located within the first sub-housing, or a portion of the first circuit board is located within the first sub-housing and another portion of the first circuit board is located within the second sub-housing; Fixing grooves for limiting and fixing the first circuit board are provided on both sides of the inner wall of the first sub-shell.

6. The small wireless thermometer according to claim 1, characterized in that, The heat-conducting head has a cavity, the temperature sensor is located in the cavity, and the space in the cavity other than the temperature sensor is filled with a filler made of thermally conductive material.

7. The small wireless temperature measuring instrument according to claim 2 or 3, characterized in that, The battery spring assembly includes a first battery spring and a second battery spring disposed opposite to each other, the first battery spring and the second battery spring being configured to apply an axial fixing force to the button battery when the button battery is located between them in a vertical position.

8. The small wireless temperature measuring instrument according to claim 1, characterized in that, The end cap is provided on the second opening end by means of a threaded connection; The end cap is configured to limit the button battery when it is threaded into place with the second open end.

9. The small wireless temperature measuring instrument according to claim 2 or 3, characterized in that, It also includes light guides; The peripheral devices of the main controller include indicator lights; The light guide is embedded in the housing and is used to conduct the light emitted by the indicator light.

10. A wireless temperature measurement system, characterized in that, It includes a data acquisition and analysis terminal with wireless communication capabilities, and several small wireless thermometers as described in any one of claims 1-9.

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