Wireless probe and conductive structure thereof

Abstract

The utility model discloses a wireless probe and a conductive structure thereof, and the wireless probe comprises a housing which comprises a first conductive tube, an insulating part, and a second conductive tube; the circuit board is positioned in the second conductive tube and is electrically connected with the second conductive tube; the first conductive structure comprises a connected first conductive part, the first conductive part is located in the first conductive tube, and the first conductive part abuts against the inner wall of the first conductive tube through radial elastic deformation, so that electric connection between the first conductive part and the first conductive tube is formed. As the first conductive part is abutted against the inner wall of the first conductive tube by adopting radial elastic deformation, the first conductive structure can be mounted in the first conductive tube through radial elastic deformation, the mounting is convenient, and other mounting structures are not needed; moreover, the first conductive structure is stably and electrically connected with the first conductive tube through radial elastic force, and the radial elastic force cannot be transmitted to the circuit board along the axial direction of the wireless elastic structure, so that the circuit board can be prevented from being axially extruded, and the performance and the service life of the circuit board are further ensured.

Description

Technical Field

[0001] This utility model relates to the field of household appliance accessories, specifically to a wireless probe and its conductive structure. Background Technology

[0002] As consumers demand higher quality of life, especially in terms of food quality and taste, food probes have gradually become a part of people's lives. Wireless probes, in particular, are favored by consumers due to their ease of use and remote connectivity. To minimize the size of the food being inserted and reduce insertion resistance, wireless food probes are currently being miniaturized. These probes need to possess functions such as charging and discharging, temperature measurement, signal transmission and reception, waterproofing, and high-temperature resistance. Therefore, ingenious structural design is required to achieve the goal of probe miniaturization.

[0003] Compared to handheld probes, charging is a crucial function for wireless probes. Most existing charging structures use axial compression contact with metal springs, such as the battery contact springs in various remote controls. In high-temperature applications, laser-welded charging cables are used, but common solder connections cannot withstand high temperatures. Furthermore, axial compression with metal springs is unsuitable for small wireless probes, as it easily transfers axial force to the PCBA board, causing continuous pressure and impacting performance and lifespan. Laser-welded charging cables are also unsuitable for small probes, as the cable needs to be soldered to the inner wall of a metal tube, a complex and inefficient process. Utility Model Content

[0004] This invention provides a wireless probe and its conductive structure to solve the problem that the charging structure inside a small wireless probe affects the PCBA board or makes it difficult to install.

[0005] In one embodiment, a wireless probe is provided, comprising:

[0006] The outer casing includes a first conductive tube, an insulating member, and a second conductive tube arranged sequentially along the axial direction. The end of the second conductive tube away from the first conductive tube has a pointed structure. The second conductive tube is used to be inserted into food for detection. The first conductive tube is used to protrude from the outside of the food. The insulating member is disposed between the first conductive tube and the second conductive tube.

[0007] A circuit board, located inside and electrically connected to the second conductive tube; and

[0008] The first conductive structure includes a first conductive portion located inside the first conductive tube, and the first conductive portion abuts against the inner wall of the first conductive tube through radial elastic deformation to form an electrical connection between the first conductive portion and the first conductive tube, and one end of the first conductive portion is electrically connected to the circuit board.

[0009] In one embodiment, the first conductive part is a helical spring; in the uninstalled state, the maximum outer diameter of the helical spring is greater than the inner diameter of the first conductive tube.

[0010] In one embodiment, the helical spring includes a first helical segment and a second helical segment, wherein the outer diameter of the first helical segment is larger than the inner diameter of the first conductive tube, and the outer diameter of the second helical segment is smaller than the inner diameter of the first conductive tube.

[0011] In one embodiment, the helical spring includes a first helical segment and a second helical segment, which are respectively eccentrically arranged relative to the central axis, and the eccentric directions of the first helical segment and the second helical segment are opposite. The outer diameter of the first helical segment and the second helical segment is smaller than the inner diameter of the first conductive tube, and the maximum radial width of the combination formed by the first helical segment and the second helical segment is greater than the inner diameter of the first conductive tube.

[0012] In one embodiment, the first helical segment and the second helical segment are alternately arranged.

[0013] In one embodiment, the first conductive structure further includes a second conductive portion, one end of which is connected to the first conductive portion, and the other end of which is electrically connected to the circuit board.

[0014] In one embodiment, the second conductive portion is a linear structure, and / or the second conductive portion is soldered to the circuit board.

[0015] In one embodiment, the insulating member has an axial connecting hole, through which the second conductive portion passes and is electrically connected to the circuit board.

[0016] In one embodiment, the insulating element is a safety line marker, and the insulating element is exposed on the first conductive tube and the second conductive tube.

[0017] In one embodiment, the first conductive tube is provided with an axial limiting structure, which is connected to the first conductive part to limit the axial position of the first conductive part.

[0018] In one embodiment, a conductive structure for a wireless probe is provided, comprising: a first conductive portion, the first conductive portion being installed inside a first conductive tube of the wireless probe, and the first conductive portion abutting against the inner wall of the first conductive tube by radial elastic deformation to form an electrical connection between the first conductive portion and the first conductive tube, and one end of the first conductive portion being further used for electrical connection with a circuit board of the wireless probe.

[0019] According to the wireless probe and its conductive structure in the above embodiments, since the first conductive part of the first conductive structure abuts against the inner wall of the first conductive tube by radial elastic deformation, the first conductive structure can be installed into the first conductive tube by radial elastic deformation, which is convenient and does not require other installation structures; and the first conductive structure achieves a stable electrical connection with the first conductive tube by radial elastic force. This radial elastic force will not be transmitted to the circuit board along the axial direction of the wireless elasticity, which can prevent the circuit board from being axially squeezed, thereby ensuring the performance and life of the circuit board. Attached Figure Description

[0020] Figure 1 This is an axial cross-sectional view of a wireless probe without the first conductive structure installed in one embodiment;

[0021] Figure 2 This is an axial cross-sectional view of a wireless probe with a first conductive structure mounted in one embodiment.

[0022] Figure 3 This is a schematic diagram of the first conductive structure in one embodiment from a side view.

[0023] Figure 4 This is a schematic diagram of the end face direction of the first conductive structure in one embodiment;

[0024] Figure 5 This is a schematic diagram of the first conductive structure in one embodiment from a side view.

[0025] Figure 6 This is a schematic diagram of the end face direction of the first conductive structure in one embodiment;

[0026] Figure 7 This is an axial cross-sectional view of a wireless probe with a first conductive structure mounted in one embodiment.

[0027] The accompanying diagrams are labeled as follows:

[0028] 1-Outer shell, 11-First conductive tube, 111-Axial limiting structure, 12-Insulating component, 121-Connecting hole, 13-Second conductive tube;

[0029] 2-Circuit board;

[0030] 3-First conductive structure, 31-First conductive part, 311-First spiral segment, 312-Second spiral segment, 32-Second conductive part;

[0031] 4-Battery;

[0032] 5-Second conductive structure. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0034] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0035] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0036] In one embodiment, a wireless probe is provided as a food temperature detection device. This wireless probe can be used in high-temperature and water-washing environments. A portion of the wireless probe can be inserted into the food. The temperature sensor of the wireless probe detects the internal temperature of the food and generates a detection signal characterizing the food temperature. The detection signal is then transmitted wirelessly to a host computer or a mobile terminal such as a mobile phone.

[0037] This wireless probe employs a novel conductive structure to connect the circuit board and the conductive tube (metal tube). The conductive structure is a staggered spring structure with radially deformable elasticity. The conductive structure can be quickly installed into the conductive tube through shrinkage, making installation convenient. It expands and abuts against the inner wall of the conductive tube without the need for welding. The conductive structure generates radially outward elastic force through the energy stored after shrinkage, driving the conductive structure to expand radially outward, thus ensuring a stable electrical connection between the conductive structure and the conductive tube. Because the conductive structure is fixed to the conductive tube through radial elastic force, it does not exert axial compressive force on the circuit board, preventing axial compression of the circuit board and thus ensuring the performance and lifespan of the circuit board.

[0038] Please refer to Figures 1 to 4 The wireless probe in this embodiment mainly includes a housing 1, a circuit board 2 and a first conductive structure 3. The wireless probe also includes components such as a battery 4 and a temperature sensor. The circuit board 2, the first conductive structure 3, the battery 4 and the temperature sensor are disposed inside the housing 1.

[0039] The outer casing 1 has a slender, needle-like structure. It includes a first conductive tube 11, an insulating element 12, and a second conductive tube 13 arranged sequentially along the axial direction. Both the first conductive tube 11 and the second conductive tube 13 are conductive metal structures. The insulating element 12 can be an insulating material such as insulating ceramic. The first conductive tube 11 and the second conductive tube 13 are connected through the insulating element 12, which also separates the first conductive tube 11 and the second conductive tube 13 to prevent electrical connection between them. The insulating element 12 serves as a safety line marker, with a portion of it exposed above the first conductive tube 11 and the second conductive tube 13, forming a ring. Figure 1(At the location indicated by reference numeral 12), the ring is the safety line of the wireless probe. The safety line can be set with different colors to distinguish it from the outer surface colors of the first conductive tube 11 and the second conductive tube 13, making the safety line more conspicuous and easy to observe. The safety line of the insulating member 12 is used to indicate the depth of the wireless probe inserted into the food; when the wireless probe is inserted into the food, the second conductive tube 13 and the safety line are inserted into the food, and part or all of the first conductive tube 11 is exposed on the outside of the food; when the food is cooking, the temperature outside the food is relatively high, and the temperature inside the food is relatively low; the second conductive tube 13 and the safety line are inserted into the food to prevent the wireless probe from being inserted too shallowly, which would cause the electronic components located between the safety line and the tip to be exposed outside the food and damaged by high temperature. The insulating member 12 can be a connecting shaft with a shoulder. One end of the insulating member 12 is inserted into the first conductive tube 11, and the other end of the insulating member 12 is inserted into the second conductive tube 13. The shoulder of the insulating member 12 is used to abut against the axial end faces of the first conductive tube 11 and the second conductive tube 13 respectively, so as to separate the first conductive tube 11 and the second conductive tube 13. The insulating component 12 can be fixed to the first conductive tube 11 and the second conductive tube 13 by means of interference fit, welding, bonding, etc.

[0040] The first conductive tube 11 and the second conductive tube 13 form the positive and negative electrodes of the wireless probe. For example, the first conductive tube 11 is the positive electrode and the second conductive tube 13 is the negative electrode; or, the first conductive tube 11 is the negative electrode and the second conductive tube 13 is the positive electrode.

[0041] The second conductive tube 13 has a longer axial length than the first conductive tube 11, and the end of the second conductive tube 13 away from the first conductive tube 11 is a pointed structure, while the end of the first conductive tube 11 away from the second conductive tube 13 is a closed structure. The entire wireless probe is a closed structure to prevent liquids or high-temperature gases from entering the wireless probe. The second conductive tube 13 is used to insert into food for temperature detection, and it is also positioned to protrude from the food for easy removal by the user. The insulating component 12 can be a heat-resistant structure to prevent high temperatures from being transferred to the first conductive tube 11, thereby reducing the temperature of the first conductive tube 11 and preventing burns to the user. Part of the outer diameter of the first conductive tube 11 can be larger than the outer diameter of the second conductive tube 13, allowing the first conductive tube 11 to accommodate more components and also serving as a barrier to prevent the first conductive tube 11 from being inserted into the food.

[0042] The second conductive tube 13 is longer and has more internal space, allowing components such as the circuit board 2 and battery 4 to be installed inside.

[0043] The circuit board 2 is installed inside the second conductive tube 13. The circuit board 2 is a long strip structure that extends along the axial direction of the second conductive tube 13.

[0044] In this embodiment, the wireless probe further includes a second conductive structure 5. The circuit board 2 is electrically connected to the first conductive tube 11 through the first conductive structure 3, and the circuit board 2 is electrically connected to the second conductive tube 13 through the second conductive structure 5, so that the positive and negative terminals of the charging circuit inside the circuit board 2 are led out to the outer shell 1 of the wireless probe, allowing the wireless probe to be charged when placed in the charging case. The circuit board 2 is also electrically connected to the battery 4 to store the charged electrical energy in the battery 4.

[0045] The first conductive structure 3 includes a first conductive part 31 and a second conductive part 32 connected together. The first conductive structure 3 can be an integrally formed structure, or the first conductive part 31 and the second conductive part 32 can be fixedly connected by welding. The first conductive part 31 is located inside the first conductive part 32 and is electrically connected to the second conductive part 32. The insulating member 12 has a connection hole 121 arranged along the axial direction of the wireless probe. One end of the second conductive part 32 is located inside the first conductive tube 11 and is electrically connected to the first conductive part 31. The other end of the second conductive part 32 extends through the connection hole 121 of the insulating member 12 into the second conductive tube 13 and is welded or plugged into the circuit board 2 to form an electrical connection.

[0046] The first conductive part 31 is a helical spring, which is an Archimedean spiral with a staggered structure. In the uninstalled state, i.e., without external force, the maximum outer diameter of the helical spring is greater than the inner diameter of the first conductive tube 11, and the minimum outer diameter is smaller than the inner diameter of the first conductive tube 11. When the helical spring is installed inside the first conductive tube 11, its maximum outer diameter will contract inward to abut against the inner wall of the first conductive tube 11. That is, the first conductive part 31 abuts against the inner wall of the first conductive tube 11 through radial elastic deformation, which improves the stability of the electrical connection between the first conductive part 31 and the first conductive tube 11. Simultaneously, the portion of the helical spring's outer diameter being smaller than the inner diameter of the first conductive tube 11 allows for elastic contraction of the larger outer diameter portion, enabling the helical spring to be installed inside the first conductive tube 11 through contraction and deformation.

[0047] The first conductive part 31 includes a first helical segment 311 and a second helical segment 312. The outer diameter of the first helical segment 311 is relatively large, exceeding the inner diameter of the first conductive tube 11. The outer diameter of the second helical segment 312 is relatively small, decreasing the inner diameter of the first conductive tube 11. When the first conductive part 31 is installed inside the first conductive tube 11, the first helical segment 311 is compressed and contracted, with the contracted portion transferred to the second helical segment 312. In the installed state, the first conductive part 31 forms a straight spring structure. In this state, the first helical segment 311 is compressed and tends to radially retract, exhibiting radially outward elastic force to ensure stable contact between the first helical segment 311 and the inner wall of the first conductive tube 1.

[0048] Preferably, the first conductive part 31 includes a plurality of first spiral segments 311 and a plurality of second spiral segments 312, which are alternately arranged. The two ends of the first spiral segment 311 can deform, which is more conducive to the installation of the first conductive part 31 and makes the first spiral segment 311 form a more stable deformation structure in the first conductive tube 11, thereby improving the stability of the installation of the first conductive part 31.

[0049] In other implementations, the plurality of first helical segments 311 and the plurality of second helical segments 312 may be arranged in other ways, such as the first helical segment 311 being located in the middle and the second helical segments 312 being located at both ends, which can also achieve radial deformation of the first helical segment 311 to contact the first conductive part 31.

[0050] In this embodiment, the second conductive part 32 can be a straight structure, generally straight overall, with one end being curved to facilitate connection between the second conductive part 32 and the first conductive part 312. The straight structure of the second conductive part 32 can shorten the transmission distance between the circuit board 2 and the first conductive tube 11, reducing charging damage; it also makes it easier to distribute the second conductive part 32, and the connection hole 121 of the insulating member 12 can be set as a straight hole.

[0051] In other implementations, the second conductive part 32 can also be a combination of straight lines, curves, broken lines, etc., to meet the internal wiring requirements of other wireless probes.

[0052] In this embodiment, the second conductive structure 5 can be a straight spring or similar structure. The second conductive structure 5 is disposed on the circuit board 2. The two ends of the straight spring extend to the circuit board 2 and are soldered to the circuit board 2 to form an electrical connection. Part of the straight spring abuts against the inner wall of the second conductive tube 13. For example, the straight spring is radially distributed along the second conductive tube 13 and parallel to the circuit board 2. The straight spring has a corresponding length, such that the coils at both ends of the straight spring abut against the inner wall of the second conductive tube 13 to form an electrical connection. Since the circuit board 2 is installed inside the second conductive structure 5, the second conductive structure 5 can be electrically connected to a small straight spring. The small straight spring is also fixed to the circuit board 2. The small straight spring only needs slight deformation to achieve a stable electrical connection with the second conductive tube 13, without exerting significant pressure on the circuit board 2 and without affecting the circuit board 2.

[0053] In other embodiments, the first conductive structure 3 may also include only the first conductive portion 31. When the circuit board 2 and the first conductive portion 31 are positioned sufficiently close, one end of the first conductive portion 31 can be directly electrically connected to the circuit board 2. Alternatively, one end of the first conductive portion 31 can be indirectly electrically connected to the circuit board 2 through other conductive components.

[0054] In this embodiment, the wireless probe is installed into the first conductive tube 11 by radially elastically deforming the first conductive part 31 of the first conductive structure 3. This makes installation convenient and eliminates the need for other installation structures. Furthermore, the first conductive structure 3 achieves a stable electrical connection with the first conductive tube 11 through radial elastic force. This radial elastic force is not transmitted to the circuit board 2 along the axial direction of the wireless elasticity, thus preventing the circuit board 2 from being axially squeezed and ensuring the performance and lifespan of the circuit board 2.

[0055] In this embodiment, when the wireless probe is in use, at least a portion of the first conductive tube 11 is exposed outside the food, while the second conductive tube 13 is located inside the food. Electronic components such as the circuit board 2 are located inside the second conductive tube 13, and the circuit board 2 is electrically connected to the first conductive tube 11 via the first conductive structure 3. The entire circuit board 2 is located inside the second conductive tube 13, i.e., inside the food, in a relatively low-temperature environment, providing good heat insulation protection for the circuit board 2 and other electronic components. If a portion of the circuit board 2 directly extends into and is electrically connected to the first conductive tube 11, the circuit board 2 located inside the first conductive tube 11 would be in a high-temperature environment, easily damaging it. By placing the first conductive structure 3, which has better high-temperature resistance than the circuit board 2, inside the first conductive tube 11, the high-temperature resistance of the wireless probe can be improved. The wireless probe is equipped with a safety line located between the first conductive tube 11 and the second conductive tube 13. When the wireless probe is inserted into food, the safety line is partially or entirely inserted into the food, ensuring that the entire second conductive tube 13 is inside the food, i.e., the electronic components such as the circuit board 2 are inside the food. The safety line also prevents the electronic components such as the circuit board 2 from being damaged by the high temperature environment outside the food when the wireless probe is inserted too shallowly.

[0056] Please see Figure 5 and Figure 6 In one embodiment, the first conductive part 31 can be other misaligned structures. For example, the first conductive part 31 includes a first helical segment 311 and a second helical segment 312 with the same or similar outer diameters. The individual outer diameters of the first helical segment 311 and the second helical segment 312 are both smaller than the inner diameter of the first conductive tube 11. The maximum radial width of the combination formed by the first helical segment 311 and the second helical segment 312 is greater than the inner diameter of the first conductive tube 11. That is, the maximum radial distance L between the first helical segment 311 and the second helical segment 312 is greater than the inner diameter of the first conductive tube 11, so that the side of the first helical segment 311 away from the second helical segment 312 and the side of the second helical segment 312 away from the first helical segment 311 respectively abut against the inner wall of the first conductive tube 11.

[0057] The first helical segment 311 and the second helical segment 312 are eccentrically arranged along the central axis of the first conductive part 31, and the eccentric directions of the first helical segment 311 and the second helical segment 312 are opposite. This makes the maximum radial width of the combined body formed by the first helical segment 311 and the second helical segment 312 greater than the inner diameter of the first conductive tube 11. Therefore, when the first conductive part 31 is installed inside the first conductive tube 11, the first helical segment 311 and the second helical segment 312 will generate elastic forces in opposite directions and abut against the inner wall of the first conductive tube 11. This also allows the first conductive part 31 to undergo radial elastic deformation and abut against the first conductive tube 11. When the first conductive part 31 is installed inside the first conductive tube 11, the first conductive part 31 is also compressed to form a straight spring structure.

[0058] Preferably, multiple first spiral segments 311 and multiple second spiral segments 312 are alternately arranged. Both the first spiral segments 311 and the second spiral segments 312 can deform radially, which is more conducive to the installation of the first conductive part 31 and makes the first spiral segments 311 and the second spiral segments 312 form a more stable deformation structure in the first conductive tube 11.

[0059] In one embodiment, the first conductive part 31 can also be other structures, such as a cylindrical structure. The circumferential sidewall of the cylindrical structure is provided with one or more spring pieces. The two ends of the spring pieces are respectively connected to the cylindrical body. The middle part of the spring piece is raised. The spring piece can also be connected to the cylindrical body at one end and the other end is a free end.

[0060] In the uninstalled state, the spring protrudes radially outward along the cylindrical structure; in the installed state, the spring is squeezed and abuts against the inner wall of the first conductive tube 11 through radial elastic deformation, and the spring maintains contact with the inner wall of the first conductive tube 11 through radial elastic force.

[0061] The first conductive part 31 of the spring sheet structure can also abut against the inner wall of the first conductive tube 11 through radial elastic deformation, which facilitates installation and does not generate axial compressive force on the circuit board 2.

[0062] In one embodiment, the second conductive structure 5 can also be other structures, such as a spring sheet structure. One end of the spring sheet is soldered to the circuit board 2, and the other end of the spring sheet is an arc-shaped structure. The spring sheet abuts against the inner wall of the second conductive tube 13 through the arc-shaped structure, which can also realize the electrical connection between the circuit board 2 and the second conductive tube 13, and at the same time facilitate the installation of the circuit board 2 and the second conductive structure 5 into the second conductive tube 13.

[0063] Please refer to Figure 7In one embodiment, an axial limiting structure 111 may be provided inside the first conductive tube 11. The axial limiting structure 111 may be a protrusion structure on the inner wall of the first conductive tube 11. The axial limiting structure 111 is used to block and limit the first conductive part 31 to limit the installation of the first conductive structure 3.

[0064] The axial limiting structure 111 can further fix the first conductive structure 3 and improve the stability of the installation and fixation of the first conductive structure 3.

[0065] In other embodiments, the axial limiting structure 111 may not be provided inside the first conductive tube 11. The end of the first conductive tube 11 near the insulating member 12 is narrowed, which can also achieve the limiting installation of the first conductive structure 3.

[0066] In one embodiment, a conductive structure for a wireless probe is provided, wherein the conductive structure of this embodiment includes the first conductive structure 3 in any of the above embodiments.

[0067] The conductive structure of this embodiment can be installed inside the first conductive tube 11 of the wireless probe, and the first conductive tube 11 is electrically connected to the circuit board 2 through the conductive structure of this embodiment.

[0068] In this embodiment, the conductive structure is installed into the first conductive tube 11 by radial elastic deformation of the first conductive part 31. This makes installation convenient and eliminates the need for other installation structures. Furthermore, the conductive structure achieves a stable electrical connection with the first conductive tube 11 through radial elastic force. This radial elastic force is not transmitted to the circuit board 2 along the non-elastic axial direction, which can prevent the circuit board 2 from being axially squeezed, thereby ensuring the performance and lifespan of the circuit board 2.

[0069] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. A wireless probe, characterized in that, include: The outer casing includes a first conductive tube, an insulating member, and a second conductive tube arranged sequentially along the axial direction. The end of the second conductive tube away from the first conductive tube has a pointed structure. The second conductive tube is used to be inserted into food for detection. The first conductive tube is used to protrude from the outside of the food. The insulating member is disposed between the first conductive tube and the second conductive tube. The circuit board is located inside the second conductive tube and is electrically connected to the second conductive tube. as well as The first conductive structure includes a first conductive portion located inside the first conductive tube, and the first conductive portion abuts against the inner wall of the first conductive tube through radial elastic deformation to form an electrical connection between the first conductive portion and the first conductive tube, and one end of the first conductive portion is electrically connected to the circuit board.

2. The wireless probe as described in claim 1, characterized in that, The first conductive part is a helical spring; in the uninstalled state, the maximum outer diameter of the helical spring is greater than the inner diameter of the first conductive tube.

3. The wireless probe as described in claim 2, characterized in that, The helical spring includes a first helical segment and a second helical segment. The outer diameter of the first helical segment is larger than the inner diameter of the first conductive tube, and the outer diameter of the second helical segment is smaller than the inner diameter of the first conductive tube.

4. The wireless probe as described in claim 2, characterized in that, The helical spring includes a first helical segment and a second helical segment. The first helical segment and the second helical segment are respectively eccentrically arranged relative to the central axis, and the eccentric directions of the first helical segment and the second helical segment are opposite. The outer diameter of the first helical segment and the second helical segment is smaller than the inner diameter of the first conductive tube. The maximum radial width of the combination formed by the first helical segment and the second helical segment is greater than the inner diameter of the first conductive tube.

5. The wireless probe as described in claim 3 or 4, characterized in that, The first helical segment and the second helical segment are alternately arranged.

6. The wireless probe as described in claim 1, characterized in that, The first conductive structure further includes a second conductive part, one end of which is connected to the first conductive part, and the other end of which is electrically connected to the circuit board.

7. The wireless probe as described in claim 6, characterized in that, The second conductive part is a linear structure, and / or the second conductive part is soldered to the circuit board.

8. The wireless probe as described in claim 1, characterized in that, The insulating element is a safety line marker, and the insulating element is exposed on the first conductive tube and the second conductive tube.

9. The wireless probe as described in claim 1, characterized in that, The first conductive tube is provided with an axial limiting structure, which is connected to the first conductive part to limit the axial position of the first conductive part.

10. A conductive structure for a wireless probe, characterized in that, include: It includes a first conductive part, which is used to be installed inside the first conductive tube of the wireless probe, and the first conductive part abuts against the inner wall of the first conductive tube by radial elastic deformation to form an electrical connection between the first conductive part and the first conductive tube. One end of the first conductive part is also used to be electrically connected to the circuit board of the wireless probe. The first conductive part is a helical spring; in the uninstalled state, the maximum outer diameter of the helical spring is greater than the inner diameter of the first conductive tube.

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