WO2023240834A1 - 一种高稳定性蓝牙测温探针 - Google Patents

一种高稳定性蓝牙测温探针 Download PDF

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Publication number
WO2023240834A1
WO2023240834A1 PCT/CN2022/121403 CN2022121403W WO2023240834A1 WO 2023240834 A1 WO2023240834 A1 WO 2023240834A1 CN 2022121403 W CN2022121403 W CN 2022121403W WO 2023240834 A1 WO2023240834 A1 WO 2023240834A1
Authority
WO
WIPO (PCT)
Prior art keywords
needle tube
antenna
locking
thermal sensor
nut
Prior art date
Application number
PCT/CN2022/121403
Other languages
English (en)
French (fr)
Inventor
朱荣源
曲国
邱恒寿
余建化
Original Assignee
深圳市久喜电子有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202210675166.8A external-priority patent/CN114878011A/zh
Priority claimed from CN202221852991.2U external-priority patent/CN217605148U/zh
Application filed by 深圳市久喜电子有限公司 filed Critical 深圳市久喜电子有限公司
Priority to CA3186878A priority Critical patent/CA3186878A1/en
Priority to EP22835543.4A priority patent/EP4328556A1/en
Publication of WO2023240834A1 publication Critical patent/WO2023240834A1/zh

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02—Means for indicating or recording specially adapted for thermometers
    • G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/621—Bolt, set screw or screw clamp
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K2207/00—Application of thermometers in household appliances
    • G01K2207/02—Application of thermometers in household appliances for measuring food temperature
    • G01K2207/06—Application of thermometers in household appliances for measuring food temperature for preparation purposes

Definitions

  • thermometers especially a high-stability Bluetooth temperature measurement probe.
  • thermometers with a high-stability Bluetooth temperature measurement probe used to measure the temperature of heated food, which includes a third thermometer positioned inside the food. one part, a second part connected to the first part, and a third part connected to the second part. It includes an outer shell, which extends from a second part to a third part.
  • the outer shell includes a metal part and a non-metallic part, and a thermal sensor is located in the metal part to detect the temperature inside the food.
  • the metal part extends into the non-metallic part of the outer shell, wherein the inner shell in the non-metallic part of the outer shell serves as at least a part of the antenna. The presence of the non-metallic part can prevent the antenna from being completely shielded and unable to transmit signals to the outside world.
  • connection between the metal part and the non-metallic part of the shell is usually achieved by a tight-fitting plug-in connection.
  • this kind of tight-fitting connection is difficult to precisely process and control the fitting tolerance, resulting in poor fitting stability and easy
  • the metal part and the non-metal part may separate from each other.
  • a high-stability Bluetooth temperature measurement probe provided by this application adopts the following solution:
  • a high-stability Bluetooth temperature measurement probe includes a needle tube with a hollow installation chamber, and the needle tube has a head end and a tail end in the length direction;
  • the handle body is in contact with the tail end of the needle tube
  • a first thermal sensor the first thermal sensor is located in the installation chamber at the head end of the needle tube and is used for temperature measurement;
  • An antenna installed inside the needle tube and electrically connected to the first thermal sensor, is used to transmit temperature signals;
  • the locking component connects the handle body and the needle tube, and is used to lock the handle body and the needle tube to each other;
  • the locking assembly includes a locking piece, a locking nut and two limiting nuts.
  • the two limiting nuts are connected to the antenna.
  • the locking piece is limited between the two limiting nuts.
  • a locking groove is provided for clamping the locking piece; the locking nut is connected to the antenna, and the locking nut cooperates with the locking nut to tightly limit the handle body to the rear end of the needle tube.
  • the handle body is mounted on the needle tube against the limit through the locking assembly, thereby achieving high-stability installation of the handle body.
  • the handle of the temperature measurement probe is usually made of ceramic materials that are resistant to high temperatures and have poor shielding efficiency. ;
  • the brittle ceramic handle is difficult to process fine threads to match the needle tube, and it is easy to break. Therefore, a tight fit between the handle body and the needle tube is usually used.
  • the locking piece is indirectly connected to the antenna by clamping the locking piece with the limit nut.
  • the locking nut is inserted into the handle body and threadedly connected to the antenna; when the locking piece is clamped on the needle tube
  • the antenna is tightened, so that the locking nut presses the handle body against the tail end of the needle tube, thereby achieving a highly stable installation of the needle tube and handle body, and has a better anti-falling effect.
  • the antenna has an accommodating space for accommodating the second thermal sensor and the pin, and the accommodating space avoids the locking component.
  • the temperature of the food to be measured is tested through the first sensor, and the ambient temperature is tested through the second thermal sensor.
  • Both the first sensor and the second thermal sensor are electrically connected to the PCB control board to transmit the temperature signal through the antenna;
  • the locking component locks the handle body and the needle tube with each other to ensure the stability of the connection, and the second thermal sensor and the pin are accommodated in the accommodation space.
  • the non-metallic handle body is usually made of brittle ceramic material, which is difficult to process fine threads and connect with the needle tube thread.
  • the handle body and the needle tube are usually connected through a tight fitting plug; however, this kind of It is difficult to precisely process and control the fit tolerances of tight-fitting connections, resulting in poor fit stability and easily causing the handle body and needle tube to separate from each other during long-term use.
  • the technical solution of this application locks the handle body and the needle tube with each other through the locking assembly, thereby ensuring the stability of the connection between the handle body and the needle tube, and effectively alleviating the problem of easy detachment between the handle body and the needle tube.
  • the accommodation space includes an accommodation groove for accommodating the second thermal sensor and an escape groove for avoiding the pin.
  • a first external thread is provided in the middle of the antenna, and the escape groove runs through the third An external thread, the receiving groove is recessed in the antenna, and the pin passes through the avoidance groove;
  • the accommodation space includes an accommodation groove for accommodating the second thermal sensor and an escape groove for avoiding the pins, a first external thread is provided in the middle of the antenna, and the number of the pins and the escape grooves is equal.
  • the accommodation space includes a mounting slot recessed on the circumferential side wall of the antenna, the mounting slot is used to accommodate the second thermal sensor and pins, and the mounting slot is formed by a portion of the antenna close to the PCB control board.
  • One end extends to an end away from the PCB control board, a first external thread is provided in the middle of the antenna, and the mounting groove penetrates the first external thread;
  • the antenna is a hollow columnar structure, and the accommodation space is provided inside the antenna along the length direction of the antenna.
  • the second thermal sensor is arranged on the end of the antenna away from the first end of the needle tube. Since the first end of the needle tube is used to insert into the food to be measured to detect the temperature, the second thermal sensor is far away from the first end of the needle tube to further ensure the measurement. The accuracy of the ambient temperature obtained.
  • an escape groove is provided through the first external thread to facilitate the passage of the pin, which not only ensures the locking effect, but also effectively connects the second thermal sensor to the PCB control board.
  • the second thermal sensor is placed in the receiving groove, and the pins are passed through the avoidance groove, thereby improving the stability of the installation of the second thermal sensor and the pins.
  • the two escape grooves are located on opposite sides of the first external thread in the circumferential direction, and the two pins pass through the escape grooves in one-to-one correspondence, so that the two pins are far away from each other, effectively preventing the two pins from interfering with each other. touch.
  • a mounting slot for accommodating both the second thermal sensor and the pin is recessed on the antenna.
  • the mounting slot is arranged through the first external thread, and the pin is installed in the mounting slot and passes through the first external thread.
  • the limit nut can still be threadedly connected with the first external thread to achieve the locking function.
  • the second thermal sensor and the pins are installed in the installation groove, which has a better limiting function for the second thermal sensor and the pins, further ensuring the stability of the installation.
  • the accommodation space is opened inside the antenna to place the second thermal sensor and the pin inside the antenna, thereby effectively avoiding the locking component on the outside of the antenna and effectively preventing the pins from interfering with the locking component. of mutual interference.
  • the locking groove is opened around the axis of the needle tube, and the locking part has a C-shaped structure.
  • the locking part slides in the installation chamber along the length direction of the needle tube, the locking part is affected by the The inner wall of the needle tube is squeezed and elastically deformed.
  • the locking groove is opened around the locking groove, and the locking piece can be easily inserted into the locking groove.
  • the locking groove is not an annular structure.
  • the locking part may rotate relative to the antenna, making it difficult for the locking part to accurately snap into the locking groove. , causing locking to fail.
  • the locking groove is opened around the axis, which improves the convenience of the locking part and improves the fault tolerance rate of the locking part and the locking groove.
  • the locking member has a first sliding part close to the head end of the needle tube, a second sliding part close to the tail end of the needle tube, and a guide part connecting the first sliding part and the second sliding part. From one end of the second sliding part to an end close to the first sliding part, the cross-sectional area of the guide part gradually decreases; under normal conditions, the outer diameter of the first sliding part is smaller than the inner diameter of the installation chamber, and the second sliding part The outer diameter of the moving part is larger than the inner diameter of the installation chamber.
  • the locking member when the antenna is inserted into the installation cavity, the locking member can be guided, thereby gradually compressing the locking member. Since the outer diameter of the first sliding part is smaller than the inner diameter of the installation chamber under normal conditions, when the antenna is inserted into the first end of the needle tube, the end of the guide part close to the first end of the needle tube can be inserted into the installation chamber, and then the guide part and the installation chamber Relative slippage occurs between the inner walls of the locking member, thereby gradually compressing and deforming the locking member, so that the locking member can be inserted into the needle tube, and the convenience of the locking member being compressed and inserted into the needle tube is improved.
  • the handle body includes a holding part and a plug-in part for inserting into the installation cavity.
  • the holding part has an abutment surface connected to the plug-in part, and the plug-in part is inserted into the installation cavity.
  • the contact surface contacts the rear end of the needle tube.
  • the outer diameter of the holding portion is equal to the outer diameter of the needle tube, which makes the connection between the handle body and the needle tube excessively smooth.
  • the handle body can be preliminarily plugged and installed on the needle tube, and the outer diameter of the holding part is aligned with the outer diameter of the needle tube, so that the connection between the contact surface and the tail end of the needle tube is aligned, excessively smooth, and improved The smoothness of the overall appearance.
  • the outer wall of the limit nut is close to the inner wall of the installation chamber, a glue injection chamber is formed between the limit nut near the tail end and the tail end, and the plug-in part is plugged into the Inside the glue injection chamber.
  • the outer wall of the limit nut fits the inner wall of the installation chamber, effectively preventing glue from penetrating toward the head end of the needle tube.
  • the antenna carrying the limited nut and locking piece is now inserted into the installation chamber to make the locking piece and the locking groove snap together.
  • the tail end of the needle tube needs to be injected into the installation chamber with glue, and then Insert the handle body into the installation chamber, and insert the locking nut into the handle body and tighten it with the antenna, so that the handle body is tightly restrained on the needle tube.
  • the outer wall of the limit nut By making the outer wall of the limit nut fit against the inner wall of the installation chamber, on the one hand, it can prevent glue from penetrating to the head end of the needle tube and affecting the work of other parts; on the other hand, when the handle body is inserted into the installation chamber, the glue can The backflow direction toward the tail end of the needle tube fills the gap between the handle body and the inner wall of the needle tube, thereby further improving the connection stability between the handle body and the needle tube, and improving the sealing performance.
  • the PCB control board is used to electrically connect the antenna and the first thermal sensor.
  • the number of elastic pieces is two, and the two elastic pieces are respectively arranged at the upper end of the PCB control board. And the lower end, the elastic piece contacts the inner wall of the needle tube when it is compressed.
  • spring pieces are provided on the two surfaces of the PCB control board, so that the PCB control board is supported in the middle of the hollow chamber through the two spring pieces, thereby achieving a supporting effect for the PCB control board, and can It effectively reduces the contact between the PCB control board and the needle tube, reduces the possibility of the PCB control board being severely heated and damaged due to the heat conduction of the needle tube during the temperature measurement process, and also protects the PCB control board.
  • the PCB control board is electrically connected to a power supply module
  • the positive electrode of the power supply module is electrically connected to the antenna
  • the PCB control board is electrically connected to the elastic piece
  • the negative electrode of the power supply module The needle tube is electrically connected to the needle tube through the PCB control board and the elastic piece in turn.
  • the locking nut is used to connect the positive electrode of the power supply module and the external power supply.
  • the needle tube is used to connect the negative electrode of the power supply module and the external power supply.
  • a rechargeable power supply module is provided, the negative electrode of the power supply component is connected to the negative electrode of the external charging device through the needle tube, and the positive electrode of the power supply module is connected to the positive electrode of the external charging device through the locking nut. Therefore, it can be adapted to a special charging box without the need for additional charging structures and connecting wires; the metal conductivity of the antenna and needle tube can be used to quickly and easily charge the temperature measurement probe.
  • one end of the antenna close to the PCB control board is threadedly connected to a support nut, and the outer periphery of the support nut fits the inner wall of the needle tube; both the limit nut and the support nut are made of ceramics. become.
  • the end of the antenna close to the PCB control board is supported, thereby supporting the antenna, ensuring the installation stability of the antenna, and effectively preventing the antenna from touching the needle tube and causing charging. short circuit problem.
  • the handle of the temperature measurement probe is usually made of ceramic materials that are resistant to high temperatures and have poor shielding efficiency. ;
  • the brittle ceramic handle is difficult to process fine threads to match the needle tube, and it is easy to break. Therefore, a tight fitting plug-in method is usually used between the handle body and the needle tube.
  • the locking piece is indirectly connected to the antenna by clamping the locking piece with the limit nut.
  • the locking nut is inserted into the handle body and threadedly connected to the antenna; when the locking piece is clamped on the needle tube
  • the antenna is tightened, so that the locking nut presses the handle body against the tail end of the needle tube, thereby achieving a highly stable installation of the needle tube and handle body, and has a better anti-falling effect.
  • the outer wall of the limit nut fits the inner wall of the installation chamber, effectively preventing glue from penetrating into the direction of the head end of the needle tube.
  • the antenna carrying the limited nut and locking piece is now inserted into the installation chamber to make the locking piece and the locking groove snap together.
  • the tail end of the needle tube needs to be injected into the installation chamber with glue, and then Insert the handle body into the installation chamber, and insert the locking nut into the handle body and tighten it with the antenna, so that the handle body is tightly restrained on the needle tube.
  • the outer wall of the limit nut By making the outer wall of the limit nut fit against the inner wall of the installation chamber, on the one hand, it can prevent glue from penetrating to the head end of the needle tube and affecting the work of other parts; on the other hand, when the handle body is inserted into the installation chamber, the glue can The backflow direction toward the tail end of the needle tube fills the gap between the handle body and the inner wall of the needle tube, thereby further improving the connection stability between the handle body and the needle tube, and improving the sealing performance.
  • Figure 1 is a cross-sectional view of the overall structure of hiding the second thermal sensor according to the embodiment of the present application
  • Figure 2 is an enlarged view of point A made to show the structure of the connection between the locking piece and the locking groove according to the embodiment of the present application;
  • Figure 3 is a cross-sectional view of the overall structure of Embodiment 1 of the present application.
  • Figure 4 is a schematic diagram of the overall structure of hiding the handle body and the needle tube in Embodiment 1 of the present application;
  • Figure 5 is a schematic structural diagram showing the accommodation space on the antenna in Embodiment 2 of the present application.
  • Figure 6 is a schematic structural diagram showing the accommodation space on the antenna according to Embodiment 3 of the present application.
  • FIG. 7 is a cross-sectional view showing the accommodation space on the antenna according to Embodiment 4 of the present application.
  • Needle 11. Installation chamber; 12. Locking groove; 13. Spike part; 14. Glue injection chamber; 15. Head end; 16. Tail end;
  • Locking component 51. Locking piece; 511. First sliding part; 512. Second sliding part; 513. Guide part; 52. Lock nut; 53. Limit nut;
  • Second thermal sensor 91. Pin.
  • the embodiment of the present application discloses a highly stable Bluetooth temperature measurement probe.
  • a high-stability Bluetooth temperature measurement probe includes a needle tube 1, a handle 2, a first thermal sensor 4, an antenna 3 and a locking component 5.
  • the needle tube 1 has a The head end 15 and the tail end 16 are opposite, and an installation chamber 11 is provided inside the needle tube 1.
  • the first thermal sensor 4 is installed inside the installation chamber 11 of the head end 15 of the needle tube 1, and the handle body 2 is inserted into the tail end of the needle tube 1. 16 and is in contact with the tail end 16 of the needle tube 1;
  • the antenna 3 is installed inside the vacuum chamber and electrically connected to the first thermal sensor 4;
  • the locking component 5 connects the handle body 2 and the needle tube 1 to secure the handle The body 2 is locked and stably installed on the needle tube 1.
  • the locking assembly 5 includes an elastic locking piece 51, a locking nut 52 and two limiting nuts 53.
  • the two limiting nuts 53 are threadedly connected to the middle of the antenna 3 and limit the locking piece 51.
  • the inner wall of the needle tube 1 corresponds to
  • the locking piece 51 is provided with a locking groove 12; the locking nut 52 is threadedly connected to the antenna 3, and the locking nut 52 is in contact with the end of the handle 2 away from the needle tube 1; the locking piece 51 is engaged in the locking groove 12
  • the locking nut 52 cooperates with the antenna 3 to tightly limit the handle body 2 to the tail end 16 of the needle tube 1 , so that the handle body 2 is clamped between the locking nut 52 and the needle tube 1 .
  • the needle tube 1 is generally in the form of a hollow cylindrical structure.
  • the opening of the installation chamber 11 is located at the tail end 16 of the needle tube 1.
  • the head end 15 of the needle tube 1 has a spike 13 that facilitates piercing into the food to be measured. , the spike portion 13 gradually narrows away from the tail end 16 of the needle tube 1 .
  • the handle body 2 includes a holding portion 21 and a plug-in portion 22 for insertion into the installation chamber 11, and a wire passage 24 is provided in the handle body 2 along the length direction of the needle tube 1; plug-in connection
  • the plug portion 22 is generally cylindrical in structure, and the cross-sectional diameter of the plug portion 22 is adapted to the diameter of the installation chamber 11 so that the plug portion 22 can be inserted into the interior of the needle tube 1 through the opening of the installation chamber 11 at the rear end 16 of the needle tube 1 .
  • the connection between the gripping part 21 and the plug-in part 22 forms a stepped structure.
  • the grip part 21 has a contact surface 23 connected to the plug-in part 22.
  • the contact surface 23 is equal to the outer diameter of the rear end 16 of the needle tube 1 so that the connection between the outer wall of the handle body 2 and the outer wall of the needle tube 1 is aligned.
  • the antenna 3 is made of metal, used for transmitting signals and having a conductive function; a first external thread 31 is provided in the middle of the antenna 3, and the internal threads of the two limit nuts 53 cooperate with the first external thread 31 , and the locking piece 51 is limited between the two limiting nuts 53, so that the locking piece 51 can follow the antenna 3 and slide in the installation cavity 11 when the antenna 3 is installed in the installation cavity 11. .
  • the limit nut 53 does not clamp the locking member 51 but only plays a role in limiting the locking member 51 along the length direction of the antenna 3.
  • the locking member 51 can produce elastic deformation and when the antenna 3 It moves relative to the limit nut 53 in the radial direction.
  • the antenna 3 is provided with a first positioning ring 34 on the side of the first external thread 31 close to the first end 15 of the needle tube 1.
  • the first positioning ring 34 is protruding around the antenna 3, and the outer diameter of the first positioning ring 34 is larger than the limit.
  • the inner diameter of the limit nut 53 , and the limit nut 53 close to the first end 15 of the needle tube 1 resists the first positioning ring 34 to position the position of the limit nut 53 and the locking member 51 .
  • the locking groove 12 is opened on the inner wall of the needle tube 1 around the axis of the needle tube 1.
  • the locking groove 12 has an annular structure, and the locking part 51 has a C-shaped structure.
  • the locking part 51 is not in contact with the antenna 3.
  • the locking piece 51 is a copper elastic snap ring that is in contact with the outside of the first external thread 31 of the antenna 3. When the locking piece 51 slides along the length direction of the needle tube 1 in the installation chamber 11, the locking piece 51 is tightened by the needle tube. 1 The inner wall is squeezed and deformed elastically.
  • the locking member 51 has a first sliding part 511 close to the front end 15 of the needle tube 1, a second sliding part 512 close to the tail end 16 of the needle tube 1, and a connecting first sliding part 511 and a second sliding part 512.
  • the guide part 513 gradually narrows from the second sliding part 512 to the direction of the first sliding part 511; specifically, from the end close to the second sliding part to the end close to the first sliding part, The cross-sectional area of the guide gradually decreases.
  • the locking member 51 has a normal state where it is not compressed by external force and a compressed state where it is compressed in the installation chamber by external force. Under the normal state, the outer diameter of the first sliding part 511 is smaller than that of the installation chamber 11 .
  • the inner diameter, the outer diameter of the second sliding part 512 is larger than the inner diameter of the installation chamber 11, so when the antenna 3 is inserted from the opening of the installation chamber 11 to the direction of the head end 15 of the needle tube 1, the first sliding part 511 can Insert into the installation chamber 11, and the guide part 513 plays a guiding role, so that the locking part 51 is gradually compressed and slides into the installation chamber 11; the second sliding part 512 of the locking part 51 slides into the locking groove. After 12 seconds, the locking member 51 expands and is locked in the locking groove 12, thereby limiting the position of the antenna 3.
  • the inner diameters of the first sliding part 511 and the second sliding part 512 are both larger than the outer diameter of the first external thread 31 . diameter, so that the locking member 51 is pressed against the inner wall of the needle tube 1 and does not contact the antenna 3 after expansion.
  • the locking nut 52 is inserted into the wire passing channel 24 from the holding portion 21 of the handle body 2, and the locking nut 52 is provided with internal threads. Specifically, the locking nut 52 abuts against the holding portion 21 On the end surface away from the needle tube 1; one end of the antenna 3 is provided with a second external thread 32 for mating with the lock nut 52.
  • the antenna 3 penetrates into the thread passage 24 of the handle body 2 and is threadedly connected to the lock nut 52; Therefore, when the locking piece 51 is locked in the locking groove 12, one end of the handle 2 is pressed against the needle tube 1 through the abutment surface 23, and the other end is pressed against the locking nut 52.
  • the locking piece The antenna 3 between 51 and the locking nut 52 is tightened to provide the locking nut 52 with a pulling force toward the rear end 16 of the needle tube 1 , thereby locking the handle body 2 between the locking nut 52 and the needle tube 1 .
  • the outer wall of the limit nut 53 is in contact with the inner wall of the installation chamber 11, so that a glue injection chamber 14 is formed between the limit nut 53 close to the rear end 16 of the needle tube 1 and the rear end 16 of the needle tube 1 ;
  • a glue injection chamber 14 is formed between the inner wall of the installation chamber 11 and the contact surface 23 of the handle body 2, and the plug-in part 22 is plugged into the glue injection chamber 14.
  • the temperature measuring needle also includes an elastic piece 6 and a PCB control board 7.
  • the PCB control board 7 is connected to one end of the antenna 3 close to the head end 15 of the needle tube 1; the number of the elastic pieces 6 is two, and the two elastic pieces 6 are symmetrical. are arranged on the two boards of the PCB control board 7 , and the elastic piece 6 is compressed and simultaneously contacts the PCB control board 7 and the inner wall of the needle tube 1 , thereby supporting the PCB control board 7 .
  • the PCB control board 7 and the antenna 3 are fixedly connected together through spot welding after being plugged in, which will not be described again here.
  • the PCB circuit board electrically connects the antenna 3 and the first thermal sensor 4.
  • the first thermal sensor 4 is located in the spiked portion 13 of the needle tube 1, and the temperature measuring head of the first thermal sensor 4 is in contact with the spiked portion.
  • the inner walls of 13 are in contact to facilitate temperature sensing.
  • the PCB control board 7 can receive the temperature measurement signal generated by the first thermal sensor 4 and convert it into a temperature signal and transmit it to the mobile smart terminal via the antenna 3 .
  • the handle body 2 is made of ceramic material
  • the PCB control board 7 has a Bluetooth module
  • the antenna 3 is coupled with the Bluetooth module, so that the antenna 3 can send the temperature signal to the outside world.
  • the PCB control board 7 is also electrically connected to a chargeable and dischargeable power supply module 8.
  • the power supply module 8 is simultaneously connected to the PCB control board 7 and the first thermal sensor 4 to provide power to the PCB control board 7 and the first thermal sensor 4.
  • Thermal sensor 4 is powered.
  • the positive electrode of the power supply module 8 is electrically connected to the antenna 3, and the PCB control board is electrically connected to the elastic piece, so that the negative electrode of the power supply module 8 is electrically connected to the needle tube 1 through the elastic piece 6.
  • the needle tube 1, the locking nut 52 and the spring piece 6 are all made of conductive metal materials.
  • the temperature measuring needle can cooperate with the external charging box, so that the locking nut 52 is connected to the positive electrode of the external power supply.
  • the needle tube 1 is connected to the negative electrode of the external power supply; thus, the positive electrode of the power supply module 8 is connected to the positive electrode of the charging box, and the negative electrode of the power supply module 8 is connected to the negative electrode of the charging box, so that the power supply module 8 can be connected of charging.
  • a third external thread 33 is provided on the end of the needle tube 1 close to the PCB control board 7, and a support nut 36 is threadedly connected to the third external thread 33.
  • the support nut The outer periphery of 36 is attached to the inner wall of the needle tube 1, thereby carrying the antenna 3 and preventing the antenna 3 from contacting the needle tube 1 and causing a short circuit during charging.
  • the antenna 3 is provided with a second positioning ring 35 on the side of the third external thread 33 close to the tail end 16 of the needle tube 1.
  • the second positioning ring 35 surrounds and protrudes from the antenna 3, and the outer diameter of the second positioning ring 35 is larger than the support.
  • the inner diameter of the nut 36 causes the support nut 36 to resist the second positioning ring 35 to position the support nut 36 .
  • the limit nut 53 and the support nut are both made of non-conductive ceramics.
  • the accommodation space includes an accommodation groove 37 for accommodating the second thermal sensor 9 and an escape groove 371 to avoid the pin 91;
  • the accommodation groove 37 is located on the circumferential side wall of the antenna 3 away from the head end 15 of the needle tube 1, and an escape groove 371 is provided on the first external thread 31, and a material passing groove 374 is provided on the third external thread 33 to accommodate
  • the slot 37 , the avoidance slot 371 , and the material passing slot 374 are aligned in the length direction of the antenna 3 .
  • the number of pins 91 of the second thermal sensor 9 is two.
  • the second thermal sensor 9 is installed in the receiving groove 37.
  • the two pins 91 are placed side by side on the surface of the antenna 3 and pass through the avoidance groove 371 and the avoidance groove 371 along the length direction of the antenna 3. Through the material chute 374, it is then connected to the PCB control board 7. It is worth mentioning that the angle occupied by the escape groove 371 in the circumferential direction of the antenna 3 is less than 90 degrees, so that the first external thread 31 and the third external thread 33 with the escape groove 371 still have a better thread fit. Effect. Specifically, in the embodiment of the present application, the angle occupied by the opening of the escape groove 371 in the 3-circumferential direction of the antenna is 30 degrees.
  • the implementation principle of a Bluetooth temperature measurement probe is as follows: the locking piece 51 is clamped by the limit nut 33, and the locking piece 51 is indirectly connected to the antenna 3.
  • the locking nut 52 is inserted into the handle body 2 and is threadedly connected to the antenna 3; when the guide portion 513 of the locking member 51 is engaged in the locking groove 12 inside the needle tube 1, the locking nut 52 can be tightened to the antenna. 3, so that the antenna 3 between the locking member 51 and the locking nut 52 is tightened, so that the locking nut 52 presses the handle body 2 against the rear end 16 of the needle tube 1, thereby High-stability installation of the needle tube 1 and the handle body 2 is achieved.
  • the second thermal sensor 9 is arranged on the antenna 3 away from the head end 15 of the needle tube 1, so that the pin 91 is placed on the surface of the antenna 3 and extends to the PCB control board 7 through the avoidance groove 371, thereby realizing the connection between the PCB control board 7 and the second thermal sensor 9. Second thermal sensor 9 electrical connection.
  • the difference between the embodiment of the present application and Embodiment 1 is that the number of escape grooves 371 is two.
  • the escape grooves 371 are opened in the circumferential direction of the first external thread 31 and the two escape grooves 371 are spaced apart.
  • the number of material troughs 374 is two. Each material trough 374 is aligned with the avoidance groove 371 in the length direction of the antenna 3.
  • Two pins 91 are placed on the surface of the antenna 3 along the length direction of the antenna 3. The pins 91 are formed by the second
  • the thermal sensor 9 passes through the avoidance groove 371 and the material passing groove 374 in a one-to-one correspondence toward the direction of the PCB control board 7 .
  • the implementation principle of a Bluetooth temperature measurement probe is as follows: two spaced escape grooves 371 are provided on the first external thread 31, and two corresponding relief grooves 371 are provided on the third external thread 33. There are two through grooves 374, so that the pins 91 are placed on the surface of the antenna 3 along the length direction of the antenna 3, and the two pins 91 pass through the avoidance grooves 371 in one-to-one correspondence.
  • the accommodation space is a mounting slot 372 for accommodating the second thermal sensor 9 and the pin 91 at the same time.
  • the mounting slot 372 is recessed in the circumferential direction of the antenna 3
  • the length direction of the mounting groove 372 is consistent with the length direction of the antenna 3 .
  • the installation groove 372 extends from the end of the antenna 3 close to the PCB control board 7 to the end far away from the first end 15 of the needle tube 1 , and the second thermal sensor 9 is installed in the installation groove 372 at the end far away from the first end 15 of the needle tube 1 .
  • the installation groove 372 penetrates the first external thread 31 and the third external thread 33 , so that the installation groove 372 is connected with the escape groove 371 and the material passing groove 374 .
  • the implementation principle of a Bluetooth temperature measurement probe in the embodiment of the present application is as follows: opening a complete installation groove 372 recessed on the surface of the antenna 3 in the length direction of the antenna 3, and installing the second thermal sensor 9 and the pin 91 at the same time. in the mounting slot 372.
  • the antenna 3 is a hollow columnar structure, and there is a hollow cavity 373 inside the antenna 3.
  • the accommodation space is the hollow cavity 373 inside the antenna 3.
  • the hollow cavity 373 is opened inside the antenna 3 along the length direction of the antenna 3 .
  • the second thermal sensor 9 is located in the hollow cavity 373 and away from the head end 15 of the needle tube 1 .
  • One end of the pin 91 is connected to the second thermal sensor 9 , and the other end extends toward the antenna 3 and is close to the end of the PCB control board 7 .
  • a wire outlet 375 is provided on the end surface of the antenna 3 close to the PCB control board 7 .
  • the pin 91 extends to the outside of the antenna 3 through the wire outlet 375 and is electrically connected to the PCB control board 7 .
  • the implementation principle of a Bluetooth temperature measurement probe in the embodiment of this application is as follows: the antenna 3 is made into a hollow structure, so that the inside of the antenna 3 is used as a receiving space, and the second thermal sensor 9 and the pin 91 are installed inside the antenna 3. To avoid installation of locking component 3.

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Abstract

涉及测温仪技术领域的一种高稳定性蓝牙测温探针，包括针管（1），具有中空的安装腔室（11）；柄体（2），与针管（1）尾端（16）抵接；第一热传感器（4），第一热传感器（4）位于针管（1）首端（15）的安装腔室（11）内；天线（3），安装在针管（1）内部并与第一热传感器（4）电性连接；锁紧组件（5），同时连接柄体（2）和针管（1）；锁紧组件（5）包括锁紧件（51）、锁紧螺母（52）以及限位螺母（53），限位螺母（53）设置于天线（3），限位螺母（53）用于对锁紧件（51）进行限位，针管（1）内壁上开设有锁紧槽（12）；锁紧螺母（52）与天线（3）螺纹连接，锁紧螺母（52）与柄体（2）上远离针管（1）的一端抵接；锁紧件（51）卡接在锁紧槽（12）内时，锁紧螺母（52）将柄体（2）抵紧限位于针管（1）的尾端（16）。测温探针柄体（2）与针管（1）的连接稳定性高，有效地缓解了陶瓷柄体（2）与针管（1）易脱落的问题。

Description

一种高稳定性蓝牙测温探针 技术领域
本申请涉及测温仪技术领域，尤其是一种高稳定性蓝牙测温探针。
背景技术
在食品加工烹饪过程中，例如对食材进行烧烤加热时，特别是对于一些较厚的食材，人们很难通过观察去了解到食材内部是否被完全烤熟。
目前，通常是采用测温探针刺入食材内部，检测食材内部的温度，从而便于确定食材是否烤熟。公开号为US10024736B2，公开日为2018年07月17日的美国发明专利公开了一种高稳定性蓝牙测温探针用于测量受热食物温度的食物温度计，其包括用于定位于食物内部的第一部分、连接到第一部分的第二部分以及连接至第二部分的第三部分。包括外壳，外壳由第二部分延伸至第三部分，外壳包括金属部分和非金属部分，热传感器位于金属部分中以检测食品内部的温度；还包括位于外壳内部的内壳，内壳从外壳的金属部分延伸到外壳的非金属部分中，其中外壳的非金属部分中的内壳用作天线的至少一部分，非金属部分的存在能够防止将天线被完全屏蔽而无法向外界发射信号。
传统技术方案中，通常外壳的金属部分与非金属部分之间通过紧配插接的方式实现连接，但是实际工况中，该种紧配连接难以精密加工控制配合公差，导致配合稳定性差，容易在长时间的使用过程中导致金属部分与非金属部分相互脱离。
发明内容
为了改善现有技术中测温探针外壳的金属部分与非金属部分之间连接稳定性差的问题，
本申请提供的一种高稳定性蓝牙测温探针采用如下的方案：
一种高稳定性蓝牙测温探针，包括针管，具有中空的安装腔室，所述针管在长度方向上具有首端和尾端；
柄体，与针管尾端抵接；
第一热传感器，所述第一热传感器位于针管首端的安装腔室内，用于进行测温；
天线，安装在针管内部并与所述第一热传感器电性连接，用于发射温度信号；
锁紧组件，连接柄体和针管，用于将柄体和针管相互锁紧；
所述锁紧组件包括锁紧件、锁紧螺母以及两个限位螺母，两个限位螺母连接于天线，锁紧件被限位于两个所述限位螺母之间，所述针管内壁上开设有用于卡接锁紧件的锁紧槽；所述锁紧螺母与天线连接，所述锁紧螺母与所述锁紧螺母配合以将柄体抵紧限位于所述针管的尾端。
通过采用上述方案，通过锁紧组件将柄体抵紧限位安装在针管上，从而实现柄体的高稳定性安装。传统技术方案中，由于需要将温度信号经由蓝牙模组通过天线发射至外界的移动智能终端，以方便的监测温度，通常测温探针的柄体会采用耐高温且屏蔽效率差的陶瓷材料制成；然而脆性的陶瓷手柄加工出精细螺纹与针管配合的难度较大，并且容易断裂。因此通常采用柄体与针管之间紧配插接的方式，但是该种方式中，陶瓷材质难以精密控制生产，容易产生较大的配合公差，导致配合稳定性差，容易在长时间的使用过程中导致柄体与针管之间相互脱离。本申请方案中，通过限位螺母将锁紧件夹持的方式，将锁紧件与天线间接相连，锁紧螺母插接在柄体上并与天线螺纹连接；当锁紧件卡接在针管内部的锁紧槽中时，天线被拉紧，从而锁紧螺母将柄体抵紧现在针管的尾端，由此实现了对针管与柄体的高稳定性安装，具有较佳的防脱效果。
可选的，还包括位于所述安装腔室内的PCB控制板以及用于检测环境温度的第二热传感器，所述针管首端用于置于待测温物体内部并导热；所述第一热传感器用于检测针管首端的温度；所述第一热传感器和所述第二热传感器均与所述PCB控制板电性连接；所述第二热传感器与所述PCB控制板之间连接有引脚，所述天线上具有用于容置所述第二热传感器和引脚的容纳空间，容纳空间避让 所述锁紧组件。
通过采用上述方案，通过第一传感器测试待测温食材的温度，并通过第二热传感器测试环境温度，第一传感器与第二热传感器均与PCB控制板电性连接以通过天线发射温度信号；锁紧组件将柄体与针管相互锁紧从而保证连接的稳定性，第二热传感器和引脚容纳于容纳空间中。传统技术方案中，非金属的柄体通常采用脆性的陶瓷材质、难以加工出精细的螺纹并与针管螺纹配合连接，通常柄体和针管之间通过紧配插接的方式实现连接；但是该种紧配连接难以精密加工控制配合公差，导致配合稳定性差，容易在长时间的使用过程中导致柄体与针管相互脱离。本申请技术方案通过锁紧组件将柄体与针管相互锁紧，从而保证了柄体与针管之间的连接稳定性，有效地缓解了柄体与针管之间易脱落的问题。
可选的，容纳空间包括用于容纳所述第二热传感器的容纳槽以及用于避让于所述引脚的避让槽，天线的中部开设有第一外螺纹，所述避让槽贯穿所述第一外螺纹，所述容纳槽凹设于所述天线，所述引脚穿过所述避让槽；
或，容纳空间包括用于容纳所述第二热传感器的容纳槽以及避让于所述引脚的避让槽，天线的中部开设有第一外螺纹，所述引脚与所述避让槽的数量均为两个，两个所述避让槽开设于所述第一外螺纹的表面且间隔布置，两个所述引脚置于所述天线表面并一一对应的穿过所述避让槽；
或，容纳空间包括凹设于天线的周向侧壁上的安装槽，所述安装槽用于容纳所述第二热传感器和引脚，所述安装槽由所述天线上靠近PCB控制板的一端延伸至远离PCB控制板的一端，天线的中部开设有第一外螺纹，所述安装槽贯穿所述第一外螺纹；
或，所述天线为中空的柱状结构，容纳空间沿所述天线的长度方向设置于所述天线内部。
通过采用上述方案，将第二热传感器设置于天线上远离针管首端的一端，由于针管首端用于插入待测温食材中以检测温度，因此第二热传感器远离针管首端，以进一步保证测得的环境温度的精准度。另一方面，在第一外螺纹上贯穿开设避让槽，以便于引脚通过，在保证锁紧效果的同时，还能够有效地将第二热传感器与PCB控制板相连。
另一实施例中，将第二热传感器置于容纳槽中，并将引脚穿过避让槽，从而提升第二热传感器与引脚安装的稳定性。并且，两个避让槽位于第一外螺纹周向上相对的两侧，两个引脚一一对应的穿过避让槽，以使得两个引脚之间相互远离，有效地防止两个引脚相互接触。
另一实施例中，在天线上凹设有用于同时容纳第二热传感器和引脚的安装槽，安装槽贯穿第一外螺纹布置，引脚安装于该安装槽内并穿过第一外螺纹的同时，限位螺母仍能够与第一外螺纹之间螺纹连接，以实现锁紧功能。并且，第二热传感器与引脚均安装于安装槽内，对第二热传感器与引脚具有较佳的限位功能，进一步保证了安装的稳定性。
另一实施例中，容纳空间开设于天线内部，以将第二热传感器和引脚置于天线内部，从而有效地避让于天线外侧的锁紧组件，有效地防止引脚与锁紧组件之间的相互干扰。
可选的，所述锁紧槽环绕针管的轴线开设，所述锁紧件呈C字型结构，所述锁紧件沿针管长度方向在安装腔室内滑移时，所述锁紧件受所述针管内壁挤压而弹性形变。
通过采用上述方案，锁紧槽环绕开设，锁紧件能够方便的卡入锁紧槽内。在一些其他的方案中，锁紧槽并非为环形结构，在锁紧件随着天线运动的过程中，锁紧件可能与天线之间产生相对转动，导致锁紧件难以准确卡入锁紧槽中，导致锁止失败。本申请技术方案中，锁紧槽环绕轴线开设，以提升了锁紧件卡接的便捷度，提升了锁紧件与锁紧槽卡接配合的容错率。
可选的，所述锁紧件具有靠近针管首端的第一滑移部、靠近针管尾端的第二滑移部以及连接所述第一滑移部和第二滑移部的导向部，自靠近第二滑移部的一端至靠近第一滑移部的一端，所述导向部的横截面积逐渐减小；常态下，第一滑移部的外径小于安装腔室的内径、第二滑移部的外径大于安装腔室的内径。
通过采用上述方案，通过设置有导向部，在天线插入安装腔室的过程中，能够对锁紧件起到导向的作用，从而将锁紧件逐渐压缩。由于常态下第一滑移部的外径小于安装腔室的内径，因此天线向针管首端插入的过程中，导向部上靠近针管首端的一端能够插入安装腔室，随后导向部与安装腔 室的内壁之间产生相对滑移，从而将锁紧件逐渐压缩形变，以便于锁紧件插入针管内部，提升了锁紧件被压缩插接进入针管中的便捷度。
可选的，所述柄体包括握持部和用于插入安装腔室内的插接部，所述握持部具有与插接部相连的抵接面，所述插接部插入所述安装腔室时，所述抵接面抵触于所述针管的尾端。
通过采用上述方案，握持部的外径与针管的外径相等，从而使得柄体与针管连接处过度平滑。通过插接部的设置，能够将柄体初步插接安装在针管上，并且握持部的外径对齐针管外径的设置，使得抵接面与针管尾端的连接处对齐，过度平滑，提升了整体外观的平滑程度。
可选的，所述限位螺母的外壁贴合于所述安装腔室的内壁，靠近尾端的限位螺母与尾端之间形成有注胶腔室，所述插接部插接在所述注胶腔室内部。
通过采用上述方案，限位螺母的外壁贴合于安装腔室的内壁，有效地防止胶水渗入针管首端方向。实际生产工况中，现将携带有限位螺母和锁紧件的天线插入安装腔室中，使得锁紧件与锁紧槽之间卡接，随后需要针管尾端向安装腔室内注入胶水，随后将柄体插入安装腔室中，并将锁紧螺母插入柄体与天线拧紧，从而将柄体抵紧限位在针管上。通过使得限位螺母的外壁贴合于安装腔室的内壁，一方面，能够防止胶水向针管的首端渗透，影响其他零部件工作；另一方面，当柄体插入安装腔室后，胶水能够向针管尾端方向回流，从而将柄体与针管的内壁之间的缝隙填充，从而进一步提升了柄体与针管之间的连接稳定性，并且提升了密封性能。
可选的，还包括弹片以及PCB控制板，所述PCB控制板用于电连接所述天线和所述第一热传感器，弹片的数量为两个，两个弹片分别设置在PCB控制板的上端和下端，弹片被压缩时抵接所述针管内壁。
通过采用上述方案，通过在PCB控制板的两个板面上设置有弹片，从而通过两个弹片将PCB控制板支撑于中空腔室的中部，从而起到了对PCB控制板的承托效果，能够有效地减少PCB控制板与针管之间的接触，减少了在测温过程中由于针管导热造成PCB控制板受热严重而被损坏的可能性，同时也起到了对PCB控制板的保护作用。
可选的，所述PCB控制板电连接有供电模组，所述供电模组的正极与所述天线电连接，所述PCB控制板与所述弹片电性连接，所述供电模组的负极依次通过PCB控制板以及弹片与所述针管电连接，所述锁紧螺母用于导通供电模组和外界电源的正极，所述针管用于导通供电模组和外界电源的负极。
通过采用上述方案，设置有可充放电的供电模组，通过针管将供电组件的负极与外界充电装置的负极导通，通过锁紧螺母将供电模组的正极与外界充电装置的正极导通，从而能够适配于特殊的充电盒，在无需采用额外充电结构以及连接线的情况下；利用天线和针管的金属导电性，从而能够方便快捷的实现对测温探针的充电。
可选的，所述天线靠近所述PCB控制板的一端螺纹连接有支撑螺母，所述支撑螺母的外周贴合于所述针管的内壁；所述限位螺母与所述支撑螺母均为陶瓷制成。
通过采用上述方案，通过支撑螺母的设置，将天线靠近PCB控制板的一端进行承托，从而起到对天线的承载效果，保证了天线的安装稳定性，有效地防止天线碰触到针管导致充电时短路问题。
综上所述，本申请包括至少以下有益技术效果：
1.通过锁紧组件将柄体抵紧限位安装在针管上，从而实现柄体的高稳定性安装。传统技术方案中，由于需要将温度信号经由蓝牙模组通过天线发射至外界的移动智能终端，以方便的监测温度，通常测温探针的柄体会采用耐高温且屏蔽效率差的陶瓷材料制成；然而脆性的陶瓷手柄加工出精细螺纹与针管配合的难度较大，并且容易断裂。因此通常采用柄体与针管之间紧配插接的方式，但是该种方式中，陶瓷材质难以精密控制生产，容易产生较大的配合公差，导致配合稳定性差，容易在长时间的实用过程中导致柄体与针管之间相互脱离。本申请方案中，通过限位螺母将锁紧件夹持的方式，将锁紧件与天线间接相连，锁紧螺母插接在柄体上并与天线螺纹连接；当锁紧件卡接在针管内部的锁紧槽中时，天线被拉紧，从而锁紧螺母将柄体抵紧现在针管的尾端，由此实现了对针管与柄体的高稳定性安装，具有较佳的防脱效果；
2.将第二热传感器设置于天线上远离针管首端的一端，由于针管首端用于插入待测温食材中以检测温度，因此第二热传感器远离针管首端，以进一步保证测得的环境温度的精准度。另一方面，在第一外螺纹上贯穿开设避让槽，以便于引脚通过，在保证锁紧效果的同时，还能够有效地将第二热传感器与PCB控制板相连。
3.限位螺母的外壁贴合于安装腔室的内壁，有效地防止胶水渗入针管首端方向。实际生产工况中，现将携带有限位螺母和锁紧件的天线插入安装腔室中，使得锁紧件与锁紧槽之间卡接，随后需要针管尾端向安装腔室内注入胶水，随后将柄体插入安装腔室中，并将锁紧螺母插入柄体与天线拧紧，从而将柄体抵紧限位在针管上。通过使得限位螺母的外壁贴合于安装腔室的内壁，一方面，能够防止胶水向针管的首端渗透，影响其他零部件工作；另一方面，当柄体插入安装腔室后，胶水能够向针管尾端方向回流，从而将柄体与针管的内壁之间的缝隙填充，从而进一步提升了柄体与针管之间的连接稳定性，并且提升了密封性能。
附图说明
图1是本申请实施例隐藏第二热传感器所做的整体结构剖视图；
图2是本申请实施例为展示锁紧件与锁紧槽卡接处结构所做的A处放大图；
图3是本申请实施例1整体结构的剖视图；
图4是本申请实施例1隐藏柄体和针管所做的整体结构示意图；
图5是本申请实施例2为展示天线上的容纳空间所做的结构示意图；
图6是本申请实施例3为展示天线上的容纳空间所做的结构示意图；
图7是本申请实施例4为展示天线上的容纳空间所做的剖视图。
附图标记说明：
1、针管；11、安装腔室；12、锁紧槽；13、尖刺部；14、注胶腔室；15、首端；16、尾端；
2、柄体；21、握持部；22、插接部；23、抵接面；24、过线通道；
3、天线；31、第一外螺纹；32、第二外螺纹；33、第三外螺纹；34、第一定位环；35、第二定位环；36、支撑螺母；37、容纳槽；371、避让槽；372、安装槽；373、中空腔；374、过料槽；375、出线口；
4、第一热传感器；
5、锁紧组件；51、锁紧件；511、第一滑移部；512、第二滑移部；513、导向部；52、锁紧螺母；53、限位螺母；
6、弹片；7、PCB控制板；8、供电模组；
9、第二热传感器；91、引脚。
具体实施方式
以下结合附图，对本申请作进一步详细说明。
本申请实施例公开一种高稳定性蓝牙测温探针。
参照图1和图2，一种高稳定性蓝牙测温探针，其包括针管1、柄体2、第一热传感器4、天线3以及锁紧组件5，针管1沿长度方向具有在长度方向相对的首端15和尾端16，且针管1内部开设有安装腔室11，第一热传感器4安装在针管1首端15的安装腔室11内部，柄体2插接在针管1尾端16的安装腔室11处并与针管1尾端16抵接；天线3安装在真空腔室内部并与第一热传感器4电连接；锁紧组件5连接柄体2和针管1，以将柄体2锁紧稳定安装在针管1上。锁紧组件5包括具有弹性的锁紧件51、锁紧螺母52以及两个限位螺母53，两个限位螺母53螺纹连接在天线3中部并限位锁紧件51，针管1内壁上对应锁紧件51开设有锁紧槽12；锁紧螺母52与天线3螺纹连接，且锁紧螺母52与柄体2上远离针管1的一端抵接；锁紧件51卡接在锁紧槽12内时，锁紧螺母52与天线3配合将柄体2抵紧限位于针管1的尾端16，从而使得柄体2被夹紧于锁紧螺母52与针管1之间。
参照图1和图2，针管1大体呈中空的圆柱状结构，安装腔室11的开口位于针管1的尾端16，针管1的首端15具有便于刺入待测温食材的尖刺部13，尖刺部13向远离针管1尾端16的方向逐渐收窄。
参照图3和图4，柄体2包括握持部21和用于插入安装腔室11内的插接部22，且柄体2内沿针管1长度方向贯穿开设有过线通道24；插接部22大体呈圆柱状结构，插接部22的横截面直径适配于安装腔室11的直径，以便于插接部22由针管1尾端16的安装腔室11开口插入针管1内部。握持部21与插接部22连接处形成台阶式结构，握持部21上具有与插接部22相连的抵接面23，插接部22完全插入安装腔室11时，抵接面23抵触与针管1的尾端16，抵接面23的外径与针管1尾端16的外径相等，以使得柄体2外壁与针管1外壁连接处对齐。
参照图3和图4，天线3为金属材质，用于发射信号并且具有导电功能；天线3的中部开设有第一外螺纹31，两个限位螺母53的内螺纹与第一外螺纹31配合，且锁紧件51被限位于两个限位螺母53之间，以使得天线3安装至安装腔室11的过程中锁紧件51能够随动于天线3而滑移在安装腔室11中。值得一提的是，限位螺母53并未夹紧锁紧件51而只是在沿天线3长度方向上对锁紧件51起到限位作用，锁紧件51能够产生弹性形变而在天线3的径向上与限位螺母53相对运动。天线3上在第一外螺纹31靠近针管1首端15的一侧设置有第一定位环34，第一定位环34环绕凸设于天线3上，且第一定位环34的外径大于限位螺母53的内径，靠近针管1首端15的限位螺母53抵触于第一定位环34，以对限位螺母53和锁紧件51的位置进行定位。
参照图3和图4，锁紧槽12环绕针管1的轴线开设于针管1的内壁，锁紧槽12呈环状结构，锁紧件51呈C字型结构，锁紧件51不与天线3接触地环绕于天线3的第一外螺纹31外，锁紧件51为铜制弹性卡环；锁紧件51沿针管1长度方向在安装腔室11内滑移时，锁紧件51受针管1内壁挤压而弹性形变。具体的，锁紧件51具有靠近针管1首端15的第一滑移部511、靠近针管1尾端16的第二滑移部512以及连接第一滑移部511和第二滑移部512的导向部513，导向部513由第二滑移部512向第一滑移部511的方向逐渐收窄；具体的，自靠近第二滑移部的一端至靠近第一滑移部的一端，导向部的横截面积逐渐减小。本申请实施例中，锁紧件51具有未受外力压缩的常态以及受外力而被压缩于安装腔室内的压缩态，在常态下，第一滑移部511的外径小于安装腔室11的内径，第二滑移部512的外径大于安装腔室11的内径，以是的天线3由安装腔室11的开口向针管1首端15方向插入的过程中，第一滑移部511能够插入安装腔室11中，并且导向部513起到导向的作用，使得锁紧件51逐渐被压缩而滑入安装腔室11内；锁紧件51的第二滑移部512滑入锁紧槽12后，锁紧件51扩张而卡接在锁紧槽12中，进而实现了对天线3的限位。值得一提的是，本申请实施例中，锁紧件51卡接在锁紧槽12中时，第一滑移部511与第二滑移部512的内径均大于第一外螺纹31的外径，以使得锁紧件51扩张后抵紧在针管1内壁上且不与天线3接触。
参照图3和图4，锁紧螺母52由柄体2握持部21插入过线通道24内，且锁紧螺母52上开设有内螺纹，具体的，锁紧螺母52抵接在握持部21远离针管1的端面上；天线3的一端开设有用于与锁紧螺母52相配合的第二外螺纹32，天线3穿入柄体2的过线通道24并与锁紧螺母52螺纹连接；由此，当锁紧件51卡接在锁紧槽12中时，柄体2的一端通过抵接面23抵紧在针管1上，另一端抵紧在锁紧螺母52上，此时锁紧件51与锁紧螺母52之间的天线3被绷紧，以向锁紧螺母52提供朝向针管1尾端16的拉力，从而将柄体2锁紧限位于锁紧螺母52与针管1之间。
参照图3和图4，限位螺母53的外壁贴合于安装腔室11的内壁，以使得靠近针管1尾端16的限位螺母53与针管1尾端16之间形成注胶腔室14；具体的，柄体2的插接部22由安装腔室11的开口处插入后，柄体2的抵接面23将安装腔室11的开口封闭；靠近针管1尾端16的限位螺母53、安装腔室11内壁以及柄体2的抵接面23之间形成注胶腔室14，插接部22插接与该注胶腔室14内。本申请实施例中，在插入柄体2之间，会由安装腔室11的开口处向限位螺母53方向注入胶水，柄体2的插接部22插入后，胶水向针管1尾端16方向回流而填充插接部22与针管1内壁之间的缝隙，从而将柄体2与针管1进一步的粘胶连接，并具有较佳的密封性能。
参照图3和图4，测温针还包括弹片6以及PCB控制板7，PCB控制板7与天线3靠近针管1首 端15的一端相连；弹片6的数量为两个，两个弹片6对称的布置在PCB控制板7的两个板面上，且弹片6被压缩而同时抵接PCB控制板7和针管1内壁，从而支撑PCB控制板7。本申请实施例中，PCB控制板7与天线3之间插接后通过点焊而固定连接在一起，在此不做赘述。PCB电路板将天线3与第一热传感器4电连接，本申请实施例中，第一热传感器4位于针管1的尖刺部13内，且第一热传感器4的测温头与尖刺部13的内壁相接触，以便于感测温度。PCB控制板7能够接受第一热传感器4产生的测温信号并转换为温度信号经由天线3发射至移动智能终端。具体的，本申请实施例中，柄体2为陶瓷材质，PCB控制板7上具有蓝牙模组，天线3与蓝牙模组耦合，以使得天线3能够将温度信号发送至外界。
参照图3和图4，PCB控制板7还电连接有可充放电的供电模组8，供电模组8同时连接PCB控制板7和第一热传感器4，以向PCB控制板7和第一热传感器4供电。供电模组8的正极与天线3电连接，PCB控制板与弹片电性连接，以使得供电模组8的负极通过弹片6实现与针管1的电连接。针管1、锁紧螺母52以及弹片6均为导电的金属材质，本申请实施例的实际工况中，测温针能够与外界充电盒相配合，使得锁紧螺母52与外界电源的正极导通，针管1与外界电源的负极导通；从而使得供电模组8的正极与充电盒的正极导通，供电模组8的负极与充电盒的负极导通，由此可以实现对供电模组8的充电。
参照图3和图4，为了防止天线3接触针管1内壁接触，针管1上靠近PCB控制板7的一端开设有第三外螺纹33，第三外螺纹33上螺纹连接有支撑螺母36，支撑螺母36的外周贴合于针管1的内壁，由此承载天线3，防止天线3与针管1接触造成充电时短路。天线3上在第三外螺纹33靠近针管1尾端16的一侧设置有第二定位环35，第二定位环35环绕凸设于天线3上，且第二定位环35的外径大于支撑螺母36的内径，支撑螺母36抵触于第二定位环35，以对支撑螺母36的位置进行定位。值得一提的是，限位螺母53与支撑螺母均为不导电的陶瓷制成。
参照图3和图4，为了将第二热传感器9与PCB控制板7相连，使容纳空间包括用于容纳第二热传感器9的容纳槽37以及避让于引脚91的避让槽371；容纳槽37位于天线3上远离针管1首端15的周向侧壁上，并且，在第一外螺纹31上开设有一个避让槽371，在第三外螺纹33上开设有一个过料槽374，容纳槽37、避让槽371、和过料槽374在天线3的长度方向上对齐。第二热传感器9的引脚91数量为两根，第二热传感器9安装于容纳槽37中，两根引脚91并列置于天线3表面并沿天线3长度方向依次穿过避让槽371和过料槽374，随后与PCB控制板7相连。值得一提的是，避让槽371在天线3周向上所占的角度小于90度，以使得开设有避让槽371的第一外螺纹31与第三外螺纹33仍具有较佳的可供螺纹配合的效果。具体的，本申请实施例中，避让槽371开口在天线3周向上所占的角度为30度。
参照图1和图2，本申请实施例一种蓝牙测温探针的实施原理为：通过限位螺母33将锁紧件51夹持的方式，将锁紧件51与天线3间接相连，锁紧螺母52插接在柄体2上并与天线3螺纹连接；当锁紧件51的导向部513被卡接在针管1内部的锁紧槽12中时，锁紧螺母52能够旋紧于天线3的第二外螺纹32处，以使得锁紧件51与锁紧螺母52之间的天线3被拉紧，从而锁紧螺母52将柄体2抵紧在针管1的尾端16，由此实现了对针管1与柄体2的高稳定性安装。并且第二热传感器9设置于远离针管1首端15的天线3上，使得引脚91置于天线3表面并经由避让槽371延伸至PCB控制板7处，从而实现对PCB控制板7与第二热传感器9的电连接。
实施例2
参照图5，本申请实施例与实施例1的不同之处在于，避让槽371的数量为两个，避让槽371贯穿开设于第一外螺纹31周向上且两个避让槽371间隔布置，过料槽374的数量为两个，每个过料槽374在天线3的长度方向上与避让槽371对齐，两个引脚91沿天线3长度方向置于天线3表面，引脚91由第二热传感器9向PCB控制板7方向一一对应的穿过避让槽371以及过料槽374。
参照图5，本申请实施例一种蓝牙测温探针的实施原理为：通过在第一外螺纹31上开设两个间隔布置的避让槽371，并在第三外螺纹33上对应的开设两个过料槽374，从而使得引脚91沿天线3长度方向置于天线3的表面，并且两个引脚91一一对应的穿过避让槽371。
实施例3
参照图6，本申请实施例与实施例1的不同之处在于，容纳空间为用于同时容纳第二热传感器9和引脚91的安装槽372，安装槽372凹设于天线3的周向侧壁上，安装槽372的长度方向与天线3的长度方向一致。具体的，安装槽372由天线3上靠近PCB控制板7的一端延伸至远离针管1首端15的一端，第二热传感器9安装于安装槽372内远离针管1首端15的一端。安装槽372贯穿第一外螺纹31和第三外螺纹33，以使得安装槽372与避让槽371和过料槽374相连通。
本申请实施例一种蓝牙测温探针的实施原理为：在天线3长度方向上开设一整条凹设于天线3表面的安装槽372，并将第二热传感器9以及引脚91同时装于安装槽372内。
实施例4
参照图7，本申请实施例与实施例1的不同之处在于，天线3为中空的柱状结构，天线3内部具有中空腔373，本申请实施例中容纳空间为天线3内部的中空腔373，中空腔373沿天线3的长度方向开设于天线3内部，第二热传感器9位于中空腔373内且位于远离针管1首端15处。引脚91的一端与第二热传感器9相连，另一端延伸向天线3靠近PCB控制板7的一端。天线3上靠近PCB控制板7的端面上开设有出线口375，引脚91经由出线口375延伸至天线3外并与PCB控制板7电连接。
本申请实施例一种蓝牙测温探针的实施原理为：将天线3制为中空的结构，从而将天线3内部作为容纳空间，将第二热传感器9和引脚91安装于天线3内部，以避让于锁紧组件3的安装。
本具体实施方式的实施例均为本申请的较佳实施例，并非依此限制本申请的保护范围，其中相同的零部件用相同的附图标记表示。故：凡依本申请的结构、形状、原理所做的等效变化，均应涵盖于本申请的保护范围之内。

Claims (10)

  1. 一种高稳定性蓝牙测温探针，其特征在于，包括：
    针管(1)，具有中空的安装腔室(11)，所述针管(1)在长度方向上具有首端(15)和尾端(16)；
    柄体(2)，与针管(1)尾端抵接；
    第一热传感器(4)，所述第一热传感器(4)位于针管(1)首端的安装腔室(11)内，用于进行测温；
    天线(3)，安装在针管(1)内部并与所述第一热传感器(4)电性连接，用于发射温度信号；
    锁紧组件(5)，连接柄体(2)和针管(1)，用于将柄体(2)和针管(1)相互锁紧；
    所述锁紧组件(5)包括锁紧件(51)、锁紧螺母(52)以及两个限位螺母(53)，两个限位螺母(53)连接于天线(3)，锁紧件(51)被限位于两个所述限位螺母(53)之间，所述针管(1)内壁上开设有用于卡接锁紧件(51)的锁紧槽(12)；所述锁紧螺母(52)与天线(3)连接，所述锁紧螺母(52)与所述锁紧螺母(52)配合以将柄体(2)抵紧限位于所述针管(1)的尾端。
  2. 根据权利要求1所述的一种高稳定性蓝牙测温探针，其特征在于，还包括位于所述安装腔室(11)内的PCB控制板(7)以及用于检测环境温度的第二热传感器(9)，所述针管(1)首端(15)用于置于待测温物体内部并导热；所述第一热传感器(4)用于检测针管(1)首端(15)的温度；所述第一热传感器(4)和所述第二热传感器(9)均与所述PCB控制板(7)电性连接；所述第二热传感器(6)与所述PCB控制板(5)之间连接有引脚(91)，所述天线(7)上具有用于容置所述第二热传感器(9)和引脚(91)的容纳空间，容纳空间避让所述锁紧组件(5)。
  3. 根据权利要求2所述的一种高稳定性蓝牙测温探针，其特征在于，容纳空间包括用于容纳所述第二热传感器(9)的容纳槽(37)以及用于避让所述引脚(91)的避让槽(371)，天线(3)的中部开设有第一外螺纹(31)，所述避让槽(371)贯穿所述第一外螺纹(31)，所述容纳槽(37)凹设于所述天线(3)，所述引脚(91)穿过所述避让槽(371)；
    或，容纳空间包括用于容纳所述第二热传感器(9)的容纳槽(37)以及避让于所述引脚(91)的避让槽(371)，天线(3)的中部开设有第一外螺纹(31)，所述引脚(91)与所述避让槽(371)的数量均为两个，两个所述避让槽(371)开设于所述第一外螺纹(31)的表面且间隔布置，两个所述引脚(91)一一对应穿过所述避让槽(371)；
    或，容纳空间包括凹设于天线(3)的周向侧壁上的安装槽(372)，所述安装槽(372)用于容纳所述第二热传感器(9)和引脚(91)，所述安装槽(372)由所述天线(3)上靠近PCB控制板(7)的一端延伸至远离PCB控制板(7)的一端，天线(3)的中部开设有第一外螺纹(31)，所述安装槽(372)贯穿所述第一外螺纹(31)；
    或，所述天线(3)为中空的柱状结构，容纳空间沿所述天线(3)的长度方向设置于所述天线(3)内部。
  4. 根据权利要求1所述的一种高稳定性蓝牙测温探针，其特征在于，所述锁紧槽(12)环绕针管(1)的轴线开设，所述锁紧件(51)呈C字型结构，所述锁紧件(51)沿针管(1)长度方向在安装腔室(11)内滑移时，所述锁紧件(51)受所述针管(1)内壁挤压而弹性形变。
  5. 根据权利要求1所述的一种高稳定性蓝牙测温探针，其特征在于，所述锁紧件(51)具有靠近针管(1)首端的第一滑移部(511)、靠近针管(1)尾端的第二滑移部(512)以及连接所述第一滑移部(511)和第二滑移部(512)的导向部(513)，自靠近第二滑移部(512)的一端至靠近第一滑移部(511)的一端，所述导向部(513)的横截面积逐渐减小；常态下，第一滑移部(511)的外径小于安装腔室(11)的内径、第二滑移部(512)的外径大于安装腔室(11)的内径。
  6. 根据权利要求1所述的一种高稳定性蓝牙测温探针，其特征在于，所述柄体(2)包括握持部(21)和用于插入安装腔室(11)内的插接部(22)，所述握持部(21)具有与插接部(22)相连的抵接面(23)所述插接部(22)插入所述安装腔室(11)时，所述抵接面(23)抵触所述针管(1)的尾端。
  7. 根据权利要求1所述的一种高稳定性蓝牙测温探针，其特征在于，所述限位螺母(53)的外壁贴合于所述安装腔室(11)的内壁，靠近尾端(13)的限位螺母(53)与尾端(13)之间形成有注胶腔室(14)，所述插接部(22)插接在所述注胶腔室(14)内部。
  8. 根据权利要求1所述的一种高稳定性蓝牙测温探针，其特征在于，还包括弹片(6)以及PCB 控制板(7)，所述PCB控制板(7)用于电连接所述天线(3)和所述第一热传感器(4)，弹片(6)的数量为两个，两个弹片(6)分别设置在PCB控制板(7)的上端和下端，弹片(6)被压缩时抵接所述针管(1)内壁。
  9. 根据权利要求8所述的一种高稳定性蓝牙测温探针，其特征在于，所述PCB控制板(7)电连接有供电模组(8)，所述供电模组(8)的正极与所述天线(3)电连接，所述PCB控制板(7)与所述弹片(6)电性连接，所述供电模组(8)的负极依次通过PCB板以及弹片(6)与所述针管(1)电连接，所述锁紧螺母(52)用于导通供电模组(8)和外界电源的正极，所述针管(1)用于导通供电模组(8)和外界电源的负极。
  10. 根据权利要求8所述的一种高稳定性蓝牙测温探针，其特征在于，所述天线(3)靠近所述PCB控制板(7)的一端螺纹连接有支撑螺母(36)，所述支撑螺母(36)的外周贴合于所述针管(1)的内壁；所述限位螺母(53)与所述支撑螺母(36)均为陶瓷制成。
PCT/CN2022/121403 2022-06-15 2022-09-26 一种高稳定性蓝牙测温探针 WO2023240834A1 (zh)

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