A Bluetooth temperature probe handle with an embedded antenna bracket structure

Abstract

This application relates to the field of temperature probe technology, specifically to a Bluetooth temperature probe handle with an embedded antenna support structure. The antenna support is housed within a cavity in the handle body, with threads on its outer side. The threaded external teeth support a helical antenna, allowing the antenna to be fixed to the antenna support. This design enables the helical antenna to adapt to the sub-1g frequency band, and the threaded structure on the outer side of the antenna support forms a fitted winding with the helical antenna, fixing the antenna winding pitch and preventing structural displacement due to jitter during use. This solves the problems of jitter and frequency deviation inherent in traditional hollow helical antennas. Furthermore, the helical antenna design is adapted to sub-1g low-frequency communication such as 433MHz, overcoming the communication distance limitations of traditional linear and metal tube antennas by extending the effective radiation length.

Description

Technical Field

[0001] This application relates to the field of temperature probe technology, and specifically to a Bluetooth temperature probe handle with an embedded antenna bracket structure. Background Technology

[0002] The antenna is the core component of wireless communication in a Bluetooth temperature probe handle, and its design directly determines the stability of signal transmission. The structural stability, anti-interference capability, and frequency band adaptability of the antenna are crucial to ensuring real-time and accurate transmission of temperature data, and directly affect the reliability of the probe in industrial testing, environmental monitoring, and other scenarios.

[0003] Existing Bluetooth probe antenna designs have significant limitations, mainly manifested in four types of defects: Linear antennas have limited communication range, cannot be adapted to sub-1g low-frequency communication such as 433MHz, and are easily affected by interference from surrounding conductors, resulting in delays or loss of temperature data transmission. Hollow spiral antenna: Although it is compatible with the sub-1g frequency band, the hollow structure is prone to absorbing water and moisture due to the "thermal breathing effect", and the vibration of the spiral body causes structural instability, affecting signal continuity. Metal hollow tube antennas: are also limited by communication distance and low frequency compatibility, and the metal material is prone to electromagnetic interference, which reduces the accuracy of temperature measurement data; Handle as antenna: Relying on the metal handle as the radiator, it is prone to frequency deviation due to drops and corrosion. In addition, the size of the handle is limited by ergonomics and cannot meet the antenna length requirements of the sub-1g band. After long-term use, the stability of the temperature measurement signal will decrease significantly.

[0004] The aforementioned shortcomings make it difficult for existing probes to simultaneously achieve low-frequency communication, structural reliability, and anti-interference capabilities. This is particularly problematic in scenarios requiring real-time monitoring, such as food cooking, where signal interruption or delay could pose safety risks. Therefore, developing a Bluetooth temperature probe antenna structure that is compatible with the sub-1GHz band, structurally stable, and anti-interference is crucial for improving temperature measurement reliability and is a technical problem urgently needing to be solved by those skilled in the art. Utility Model Content

[0005] Based on this, in order to solve the problem that existing probes are difficult to balance in terms of low-frequency communication, structural reliability and anti-interference capability, this application provides a Bluetooth temperature probe handle with an embedded antenna support structure, which is compatible with the sub-1g frequency band and has a stable and anti-interference Bluetooth temperature probe antenna structure.

[0006] In a first aspect, this application provides a Bluetooth temperature probe handle with an embedded antenna bracket structure, including a handle body, an antenna bracket, and an antenna. The handle body has a cavity, and the antenna bracket is set in the cavity. The antenna is a helical antenna, and the antenna bracket has threads on the outside. The helical antenna is wound around the outside of the antenna bracket, and the shape of the antenna after winding is adapted to the thread shape of the antenna bracket.

[0007] Furthermore, the antenna is a spring-loaded antenna, which is wound around the antenna support.

[0008] Furthermore, one end of the antenna extends to a PCB board disposed in the probe body and is electrically connected to the PCB board.

[0009] Furthermore, the antenna bracket has a through hole, and after the wire passes through the through hole, one end is connected to the PCB board, and the other end is connected to the first temperature sensor located at the rear end of the handle.

[0010] Furthermore, the handle body has an internal accommodating cavity, the shape and size of which are adapted to the antenna bracket on which the spring-loaded antenna is mounted.

[0011] Furthermore, it also includes a cap, on which a first charging electrode is provided; and the probe body is provided with a second charging electrode.

[0012] Furthermore, the thread spacing on the outer side of the antenna bracket is the same.

[0013] Furthermore, the handle body is made of ceramic material.

[0014] In a second aspect, a temperature probe is provided, including a Bluetooth temperature probe handle with an embedded antenna bracket structure as described in any one of the first aspects, and also including a main control module disposed on a PCB board and a second temperature sensor disposed at the front end of the probe body.

[0015] The Bluetooth temperature probe handle with an embedded antenna bracket structure provided in this application has the following advantages: The handle body has a cavity to accommodate an antenna bracket with threads on the outside. The spiral antenna is fixed to the antenna bracket, and the spiral antenna is secured by the threaded antenna bracket. Mechanical locking of the winding pitch prevents frequency deviation caused by jitter, thus solving the defects of traditional hollow spiral antennas, such as susceptibility to moisture and structural instability. It adapts to the sub-1G low-frequency communication requirements, extending the effective communication distance. The screw-fit structure between the antenna and the antenna bracket enhances connection reliability and reduces the risk of signal interruption caused by drops or vibrations. In summary, the structural stability, anti-interference capability, and frequency band adaptability of the antenna in this application are key to ensuring real-time and accurate transmission of temperature data. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is one of the partial structural schematic diagrams of a Bluetooth temperature probe handle in one embodiment; Figure 2 This is a perspective view of the Bluetooth temperature probe handle in one embodiment; Figure 3 This is a second schematic diagram of a portion of the structure of a Bluetooth temperature probe handle in one embodiment; Figure 4 This is a schematic diagram of the antenna support structure in one embodiment; Figure 5 This is a perspective view of a Bluetooth temperature probe in one embodiment; Reference numerals: 10, handle body; 11, accommodating cavity; 20, antenna bracket; 21, central hole; 22, thread; 30, antenna; 40, probe body; 41, second charging electrode; 50, PCB board; 61, first temperature sensor; 62, second temperature sensor; 70, cap; 71, first charging electrode; 80, wire. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, in one embodiment, this application provides a Bluetooth temperature probe handle with an embedded antenna bracket structure, including a handle body 10, an antenna bracket 20, and an antenna 30. The handle body 10 has a cavity inside, the antenna bracket 20 is disposed in the cavity, the antenna 30 is a helical antenna 30, the antenna bracket 20 has a thread 22 on the outside, the helical antenna 30 is wound around the outside of the antenna bracket 20, and the shape of the antenna 30 after winding is adapted to the thread of the antenna bracket 20.

[0020] It should be noted that the handle body 10 is made of ceramic material and has an internal cavity to accommodate the antenna bracket 20 and the helical antenna 30, providing structural support and protection. The antenna bracket 20 is located within the cavity of the handle body 10 and has threads 22 on its outer side. The threaded external teeth support the helical antenna 30, allowing the antenna 30 to be fixed on the antenna bracket 20. This ensures that the helical antenna 30 is compatible with the sub-1g frequency band, and the threaded structure on the outer side of the antenna bracket 20 forms a fitting and winding connection with the helical antenna 30, fixing the winding pitch of the antenna 30 and preventing structural displacement caused by jitter during use. This solves the problems of jitter and frequency deviation common in traditional hollow helical antennas 30. Furthermore, the helical antenna 30 is designed to be compatible with sub-1g low-frequency communication such as 433MHz, overcoming the communication distance limitations of traditional linear and metal tube antennas 30 by extending the effective radiation length.

[0021] Specifically, the antenna 30 is wound around the antenna bracket 20 to form a spiral antenna 30. This improves the stability of the antenna 30 and enables it to adapt to the sub-1g frequency band. The antenna bracket 20 has threads 22 on the outside, and the spiral antenna 30 is screwed into the antenna bracket 20, which further improves the stability of the antenna 30 position.

[0022] In one embodiment, the antenna 30 is a spring antenna 30, which is wound around the antenna support 20.

[0023] Specifically, the spring antenna 30 has a stable spacing, and the antenna bracket 20 has a thread 22 on the outside. The winding shape of the spring antenna 30 is adapted to the thread and is fixed by a screw thread and nut type tightening sleeve structure. The winding distance is mechanically locked by the bracket.

[0024] In one embodiment, one end of the antenna 30 extends to and is electrically connected to a PCB board 50 disposed in the probe body 40.

[0025] Specifically, one end of the antenna 30 extends directly to the PCB board 50 inside the probe body 40, and the electrical connection is achieved by welding, conductive adhesive bonding or plugging.

[0026] In one embodiment, the antenna bracket 20 has a through hole 21, and the wire 80 passes through the through hole 21 and is connected at one end to the PCB board 50, and at the other end to the first temperature sensor 61 located at the rear end of the handle.

[0027] Specifically, the wire 80 is routed independently through the central hole 21 and is physically isolated from the spiral antenna 30 to avoid mutual interference between the temperature signal transmitted by the wire 80 and the radio frequency signal of the antenna 30, thus ensuring the stability of temperature measurement data and Bluetooth communication.

[0028] In one embodiment, the handle body 10 has a receiving cavity 11 inside, the shape and size of which are adapted to the antenna bracket 20 on which the spring antenna 30 is mounted.

[0029] Specifically, the shape and size of the accommodating cavity 11 are perfectly matched with the overall structure of the "antenna support 20 with spring antenna 30 mounted on it", that is, the assembly after the spring antenna 30 is wrapped around the outside of the antenna support 20 can be tightly embedded in the accommodating cavity 11, and the overall result is compact.

[0030] In one embodiment, a cap 70 is also included, on which a first charging electrode 71 is provided; and a second charging electrode 41 is provided on the probe body 40.

[0031] Specifically, the first charging electrode 71 is integrated into the cap 70, and the second charging electrode 41 is disposed on the probe body 40. The temperature probe is placed on the charging base for wireless charging without the need for a charging interface.

[0032] In one embodiment, the thread spacing on the outer side of the antenna bracket 20 is the same.

[0033] Specifically, preferably, the antenna support 20 has threads 22 on its outer side with uniform thread spacing. The uniform thread spacing ensures that the winding distance of the spring antenna 30 and the axial distance of each turn of the antenna 30 are uniform and fixed when the spring antenna 30 is wound, solving the defects of traditional hollow spiral antennas 30 such as "easy to shake and unstable structure", and ensuring the frequency stability of communication in the sub-1g band (such as 433MHz).

[0034] In one embodiment, the handle body 10 is made of ceramic material.

[0035] Specifically, the handle body 10 is made of ceramic material, which reduces external electromagnetic interference and solves the problem that the existing antenna 30 is susceptible to conductor interference; the closed bracket structure avoids the "thermal breathing effect" and prevents moisture from entering and causing corrosion.

[0036] In one embodiment, a temperature probe is provided, including a Bluetooth temperature probe handle with an embedded antenna bracket structure as described in any of the first aspects, and also including a main control module disposed on a PCB board 50 and a second temperature sensor 62 disposed at the front end of the probe body 40.

[0037] Specifically, the first temperature sensor 61 is located at the rear of the handle and is connected to the PCB board 50 via a wire 80 passing through the hole 21 in the antenna bracket 20, for ambient temperature measurement. The second temperature sensor 62 is located at the front of the probe body 40, directly contacting the object being measured, such as the inside of food, to accurately collect core temperature data. The handle body 10 is made of ceramic material and has an internal cavity to accommodate the antenna bracket 20 and the helical antenna 30, providing structural support and protection. The antenna bracket 20 is located within the cavity of the handle body 10 and has threads 22 on its outer side. The threaded external teeth support the helical antenna 30, allowing the antenna 30 to be fixed on the antenna bracket 20. This ensures that the helical antenna 30 is compatible with the sub-1g frequency band, and the threaded structure on the outer side of the antenna bracket 20 forms a fitted winding with the helical antenna 30, fixing the winding pitch of the antenna 30 and preventing structural displacement caused by vibration during use. This solves the problems of vibration and frequency deviation common in traditional hollow helical antennas 30. Furthermore, the spiral antenna 30 is designed to be compatible with sub-1g low-frequency communication such as 433MHz, and breaks through the communication distance limitations of traditional linear and metal tube antennas 30 by extending the effective radiation length.

[0038] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0040] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0041] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A Bluetooth temperature probe handle with an embedded antenna bracket structure, characterized in that, Includes the handle body, antenna bracket, and antenna; The handle body has a cavity, and the antenna bracket is set in the cavity. The antenna is a helical antenna, and the antenna bracket has threads on the outside. The helical antenna is wound around the outside of the antenna bracket, and the shape of the antenna after winding is adapted to the thread shape of the antenna bracket.

2. The Bluetooth temperature probe handle with an embedded antenna bracket structure according to claim 1, characterized in that, The antenna is a spring-loaded antenna, which is wound around the antenna support.

3. The Bluetooth temperature probe handle with an embedded antenna bracket structure according to claim 1, characterized in that, One end of the antenna extends to a PCB board disposed in the probe body and is electrically connected to the PCB board.

4. The Bluetooth temperature probe handle with an embedded antenna bracket structure according to claim 1, characterized in that, The antenna bracket has a through hole. After the wire passes through the through hole, one end is connected to the PCB board, and the other end is connected to the first temperature sensor located at the rear of the handle.

5. The Bluetooth temperature probe handle with an embedded antenna bracket structure according to claim 2, characterized in that, The handle body has an internal cavity, the shape and size of which are adapted to the antenna bracket on which the spring-type antenna is mounted.

6. The Bluetooth temperature probe handle with an embedded antenna bracket structure according to claim 3, characterized in that, It also includes a cap, on which a first charging electrode is provided; and the probe body is provided with a second charging electrode.

7. The Bluetooth temperature probe handle with an embedded antenna bracket structure according to claim 2, characterized in that, The threads on the outer side of the antenna support are spaced at the same intervals.

8. The Bluetooth temperature probe handle with an embedded antenna bracket structure according to claim 1, characterized in that, The handle body is made of ceramic material.

9. A temperature probe, characterized in that, The Bluetooth temperature probe handle with an embedded antenna bracket structure according to any one of claims 1 to 8 further includes a main control module disposed on a PCB board and a second temperature sensor disposed at the front end of the probe body.

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