Wireless passive temperature measurement bolt

Abstract

The utility model provides a wireless passive temperature measurement bolt, and relates to the technical field of power equipment. Which comprises a nut and a screw, one end of the screw and one side of the nut are integrally formed, and is characterized in that a groove is formed in the side, away from the screw, of the nut and penetrates through the screw, and a temperature measuring assembly is arranged in the groove. By adopting the wireless passive temperature measurement bolt, the temperature measurement assembly can be detached from the wireless passive temperature measurement bolt for maintenance or replacement after the wireless passive temperature measurement bolt is installed on electrical equipment.

Description

Technical Field

[0001] This application relates to the technical field of power equipment, and particularly to a wireless passive temperature measurement bolt. Background Art

[0002] A bolt is a general term for a fastener. The principle of a bolt is to use the physical and mathematical principles of the circular rotation of an object's inclined plane and friction to gradually fasten objects.

[0003] Bolts are indispensable in daily life and industrial production and manufacturing. Bolts are also known as the rice of industry. It can be seen that bolts are widely used. At the circuit joints of power supply equipment and the fixing points of motors, the quality of bolt connection directly relates to the problems of power supply lines and motor equipment. And at the joints, due to the large connection resistance, a large amount of heat is often generated when current passes through, causing potential safety hazards. Therefore, it is necessary to measure the temperature in time at the main power supply circuit and the motor connection to avoid problems such as cable fires and motor coil damage caused by overheating.

[0004] Currently, most temperature measurement methods are active type. Although they can achieve the purpose of temperature measurement, the installation and maintenance costs are relatively high. The active temperature measurement modules used in the power industry or equipment are mainly fixed by strap type and press-fit type, which cannot ensure a good combination of the module and the temperature measurement point. At the same time, the module is powered by a battery, resulting in a large volume of the temperature measurement module and it cannot be installed secretly when the temperature measurement space is small. The module is powered by a battery and is also easily interfered with in the power supply line, causing damage to the module. At the same time, the service life of the label is short.

[0005] In the utility model patent with the authorized announcement number: CN212003883U disclosed in the Chinese patent literature, it discloses a "bolt capable of wireless passive temperature measurement", and specifically discloses including a nut and a screw rod. One end of the screw rod is integrally formed with one side of the nut. A ring-shaped temperature measurement label is attached to the connection side of the nut and the screw rod. The center line of the temperature measurement label coincides with the central axis of the nut. A metal sheet is threadedly connected to the screw rod, and the metal sheet is pressed against the other side of the temperature measurement label. By adopting the above technical solution, by attaching the temperature measurement label to the connection side of the nut and pressing it with the metal sheet, the temperature measurement label is more firmly installed. In addition, the specification of the nut does not need to be changed, so the bearing capacity of the nut remains unchanged, which can ensure the fastening effect of the bolt. Moreover, the temperature measurement label is arranged on the connection side of the nut, which is closer to the heat source, so the temperature monitoring is more accurate.

[0006] However, in the prior art disclosed in this patent, when it is necessary to replace the wireless passive temperature measurement sensor, it is necessary to disassemble the bolt from the electrical equipment and then remove it, which is not convenient.

[0007] The above information disclosed in the background art section is only used to enhance the understanding of the background of the present disclosure. Therefore, it may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Invention

[0008] The main object of the present application is to provide a wireless passive temperature-measuring bolt, which can detach the temperature-measuring component from the wireless passive temperature-measuring bolt after the wireless passive temperature-measuring bolt is installed in an electrical device for maintenance or replacement.

[0009] To solve the foregoing technical problems, the present application provides a wireless passive temperature-measuring bolt, including a nut and a screw rod. One end of the screw rod is integrally formed with one side of the nut. It is characterized in that: a groove is provided on the side of the nut away from the screw rod, the groove penetrates through the screw rod, and a temperature-measuring component is arranged in the groove.

[0010] Optionally, in some embodiments of the present invention, the above temperature-measuring component includes a wireless passive temperature sensor, an RFID reader / writer, a data transmission module, and a control terminal;

[0011] The wireless passive temperature sensor, the RFID reader / writer, and the data transmission module are sequentially arranged along the outward direction of the groove. Both the RFID reader / writer and the data transmission module are electrically connected to the wireless passive temperature sensor, and the data transmission module is electrically connected to the control terminal.

[0012] Optionally, in some embodiments of the present invention, the above groove includes a first groove body and a second groove body arranged along the axis of the screw rod. The first groove body is arranged on the side of the nut away from the screw rod, and the second groove body is arranged on the side of the screw rod close to the nut and the second groove body communicates with the bottom of the first groove body.

[0013] The number of wireless passive temperature sensors is multiple, and the multiple wireless passive temperature sensors are arranged at intervals in the second groove body.

[0014] Optionally, in some embodiments of the present invention, the above further includes a fixing cylinder, the fixing cylinder is detachably installed in the second groove body, and multiple wireless passive temperature sensors are installed in the fixing cylinder.

[0015] Optionally, in some embodiments of the present invention, the above fixing cylinder includes a fixing frame and a heat-conducting layer installed on the fixing frame. The passive temperature sensor is installed on the fixing frame, one side of the heat-conducting layer abuts against the inner side wall of the second groove body, and the other side of the heat-conducting layer abuts against the passive temperature sensor.

[0016] Optionally, in some embodiments of the present invention, the above fixing frame includes a screw rod and a fixing plate rotatably installed on the screw rod. The passive temperature sensor and the heat-conducting layer are both installed on the fixing plate.

[0017] Optionally, in some embodiments of the present utility model, the above heat conduction layer includes a heat conductive silica gel pad and a metal heat conduction plate, and the heat conductive silica gel pad is arranged on the side closer to the screw rod relative to the metal heat conduction plate.

[0018] Optionally, in some embodiments of the present utility model, the above bolt is made of a metal material with good heat conductivity.

[0019] Optionally, in some embodiments of the present utility model, a heat sink is arranged on the side of the nut away from the screw rod, and the groove penetrates through the heat sink.

[0020] Optionally, in some embodiments of the present utility model, heat dissipation grooves are arranged on the outer side wall of the nut.

[0021] The beneficial effects that this application can achieve.

[0022] A wireless passive temperature measurement bolt proposed in an embodiment of this application includes a nut and a screw rod. One end of the screw rod is integrally formed with one side of the nut. A groove is arranged on the side of the nut away from the screw rod, and the groove penetrates through the screw rod. A temperature measurement component is arranged in the groove.

[0023] One end of the screw rod in this embodiment is integrally formed with one side of the nut. By arranging a groove on the side of the nut away from the screw rod, the temperature measurement component can be installed in the groove, so that the temperature measurement component can more directly detect the temperature of the bolt, and by arranging the groove, the temperature measurement component can be closer to the surface of the electrical equipment relative to the bolt, thereby improving the accuracy of temperature measurement.

[0024] By arranging the groove at the end away from the screw rod, the temperature measurement component can be installed on the wireless passive temperature measurement bolt or removed from the wireless passive temperature measurement bolt after the wireless passive temperature measurement bolt is installed on the electrical equipment, for maintenance or replacement. Description of the Drawings

[0025] Figure 1 It is a cross-sectional view of the wireless passive temperature measurement bolt provided by an embodiment of the present utility model;

[0026] Figure 2 It is a top view of the wireless passive temperature measurement bolt provided by an embodiment of the present utility model.

[0027] Reference numerals: 1 - nut, 2 - screw rod, 3 - wireless passive temperature sensor, 4 - RFID reader / writer, 5 - data transmission module, 6 - first groove, 7 - second groove, 8 - lead screw, 9 - fixing plate, 10 - heat conductive silica gel pad, 11 - metal heat conduction plate, 12 - heat sink, 13 - heat dissipation groove.

[0028] The realization of the purpose of this application, functional features and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Embodiments

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, the directional indications will also change accordingly.

[0031] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0033] The following will further elaborate on the present utility model in conjunction with the accompanying drawings so that those skilled in the art can implement it with reference to the text of the specification.

[0034] In order to achieve the above object,

[0035] Refer to Figure 1 - Figure 2An embodiment of the present application provides a wireless passive temperature measuring bolt, comprising a nut 1 and a screw rod 2, one end of the screw rod 2 is integrally formed with one side of the nut 1, a groove is provided on the side of the nut 1 away from the screw rod 2, the groove passes through the screw rod 2, and a temperature measuring component is provided in the groove.

[0036] One end of the screw rod 2 of the present embodiment is integrally formed with one side of the nut 1. By setting a groove on the side of the nut 1 away from the screw rod 2, the temperature measuring component can be installed in the groove, so that the temperature measuring component can more directly detect the temperature of the bolt. By setting the groove, the temperature measuring component can be closer to the surface of the power equipment relative to the bolt, thereby improving the accuracy of temperature measurement.

[0037] By setting the groove at the end away from the screw rod 2, the temperature measuring component can be installed on the wireless passive temperature measuring bolt or the temperature measuring component can be removed from the wireless passive temperature measuring bolt for maintenance or replacement after the wireless passive temperature measuring bolt is installed on the electrical equipment.

[0038] As an optional implementation, the temperature measurement component of this embodiment includes a wireless passive temperature sensor 3, an RFID reader / writer 4, a data transmission module 5 and a control terminal;

[0039] The wireless passive temperature sensor 3, the RFID reader 4 and the data transmission module 5 are sequentially arranged in the outward direction of the groove. The RFID reader 4 and the data transmission module 5 are both electrically connected to the wireless passive temperature sensor 3, and the data transmission module 5 is electrically connected to the control terminal.

[0040] The wireless passive temperature sensor 3 of this embodiment is arranged at the bottom of the groove and abuts against the inner wall of the groove, so as to better collect the temperature of the wireless passive temperature measuring bolt.

[0041] Among them, the wireless passive temperature sensor 3: has a built-in temperature sensor and an RFID chip, which can sense the temperature in real time and convert it into a digital signal, while using the energy in the environment (such as an electromagnetic field) to work without an external power supply.

[0042] RFID reader / writer 4: responsible for reading the temperature data in the wireless passive temperature sensor 3 and transmitting it to the data transmission module 5.

[0043] Data transmission module 5: transmits the temperature data collected by the RFID reader 4 to the data processing and analysis platform via wired or wireless means.

[0044] Control terminal: stores, analyzes and processes the received temperature data, and provides functions such as real-time monitoring, historical query, and over-temperature alarm.

[0045] As an alternative implementation, the groove in this embodiment includes a first groove body 6 and a second groove body 7 arranged along the axis of the screw 2. The first groove body 6 is provided on the side of the nut 1 away from the screw 2, and the second groove body 7 is provided on the side of the screw 2 close to the nut 1 and the bottom of the second groove body 7 communicates with the bottom of the first groove body 6.

[0046] The number of the wireless passive temperature sensors 3 is multiple, and the multiple wireless passive temperature sensors 3 are arranged at intervals in the second groove body 7.

[0047] Both the first groove body 6 and the second groove body 7 in this embodiment are of a cylindrical structure, and they are both arranged along the axial direction of the screw 2. The diameter of the first groove body 6 is larger than that of the second groove body 7.

[0048] By providing the mutually communicating first groove body 6 and second groove body 7, the first groove body 6 is used to install the data transmission module 5, the second groove body 7 is used to place multiple wireless passive temperature sensors 3 and the supporting RFID reader / writer 4, and the multiple RFID reader / writers 4 are electrically connected to the data transmission module 5.

[0049] As an alternative implementation, this embodiment further includes a fixing cylinder, which is detachably installed in the second groove body 7, and multiple wireless passive temperature sensors 3 are installed in the fixing cylinder.

[0050] By providing the fixing cylinder detachably installed in the second groove body 7, multiple wireless passive temperature sensors 3 can be synchronously disassembled relative to the wireless passive temperature measuring bolt by taking out the fixing cylinder.

[0051] Optionally, the fixing cylinder in this embodiment includes a fixing frame and a heat conduction layer installed on the fixing frame. The passive temperature sensor is installed on the fixing frame, one side of the heat conduction layer abuts against the inner side wall of the second groove body 7, and the other side of the heat conduction layer abuts against the passive temperature sensor.

[0052] By providing the heat conduction layer, the wireless passive temperature sensor 3 can more accurately detect the temperature inside the second groove body 7.

[0053] Furthermore, in this embodiment, the fixing frame can be provided to include a lead screw 8 and a fixing plate 9 rotatably installed on the lead screw 8, and the passive temperature sensor and the heat conduction layer are both installed on the fixing plate 9.

[0054] By rotatably connecting the fixing plate 9 with the lead screw 8 and rotating the fixing plate 9 relative to the lead screw 8, the position of the fixing plate 9 can be adjusted to meet more actual usage requirements.

[0055] Furthermore, in this embodiment, the heat conduction layer can be provided to include a heat conduction silica gel pad 10 and a metal heat conduction plate 11, and the heat conduction silica gel pad 10 is arranged on the side closer to the screw 2 relative to the metal heat conduction plate 11.

[0056] The contact between the heat-conducting silicone pad 10 and the inner sidewall of the second tank 7 can be made closer, and the metal heat-conducting plate 11 can be more stably connected to the wireless passive temperature sensor 3.

[0057] As an alternative embodiment, the bolts in this embodiment are made of a metal material with good heat conductivity. A heat sink 12 is provided on the side of the nut 1 away from the screw 2, the groove penetrates through the heat sink 12, and a heat dissipation groove 13 is provided on the outer sidewall of the nut 1 to facilitate better heat dissipation.

[0058] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, it is obvious that this application is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of this application, this application can be implemented in other specific forms.

Claims

1. A wireless passive temperature-measuring bolt, comprising a nut and a screw rod, one end of the screw rod is integrally formed with one side of the nut, and it is characterized in that: A groove is provided on one side of the nut away from the screw rod, the groove penetrates through the screw rod, and a temperature measuring component is arranged in the groove; The temperature measuring component includes a wireless passive temperature sensor, an RFID reader / writer, a data transmission module, and a control terminal; The wireless passive temperature sensor, the RFID reader / writer, and the data transmission module are sequentially arranged along the outward direction of the groove. The RFID reader / writer and the data transmission module are both electrically connected to the wireless passive temperature sensor, and the data transmission module is electrically connected to the control terminal.

2. The wireless passive temperature-measuring bolt according to claim 1, wherein: The groove includes a first groove body and a second groove body arranged along the axis of the screw rod. The first groove body is arranged on the side of the nut away from the screw rod, and the second groove body is arranged on the side of the screw rod close to the nut and the second groove body communicates with the bottom of the first groove body. The number of the wireless passive temperature sensors is multiple, and the multiple wireless passive temperature sensors are arranged at intervals in the second groove body.

3. The wireless passive temperature-measuring bolt according to claim 2, characterized in that: It further includes a fixing cylinder, the fixing cylinder is detachably installed in the second groove body, and the multiple wireless passive temperature sensors are installed in the fixing cylinder.

4. The wireless passive temperature-measuring bolt according to claim 3, wherein: The fixing cylinder includes a fixing frame and a heat conduction layer installed on the fixing frame. The passive temperature sensor is installed on the fixing frame. One side of the heat conduction layer abuts against the inner side wall of the second groove body, and the other side of the heat conduction layer abuts against the passive temperature sensor.

5. The wireless passive temperature measurement bolt according to claim 4, wherein: The fixing frame includes a screw rod and a fixing plate rotatably installed on the screw rod. The passive temperature sensor and the heat conduction layer are both installed on the fixing plate.

6. The wireless passive temperature-measuring bolt according to claim 4, characterized in that: The heat conduction layer includes a heat conduction silica gel pad and a metal heat conduction plate. The heat conduction silica gel pad is arranged on the side closer to the screw rod relative to the metal heat conduction plate.

7. The wireless passive temperature measurement bolt according to claim 1, wherein: The bolt is made of a metal material with good heat conductivity.

8. The wireless passive temperature-measuring bolt according to claim 1, wherein: A heat sink is provided on one side of the nut away from the screw rod, and the groove penetrates through the heat sink.

9. The wireless passive temperature-measuring bolt according to claim 1, wherein: Heat dissipation grooves are provided on the outer side wall of the nut.

Images