Ear thermometer probe and ear thermometer

By employing a dual magnetic component design and snap-fit ​​structure in the ear thermometer probe, the problems of complex assembly and insufficient magnetic field stability in existing technologies have been solved, achieving stable installation, reduced costs, and intelligent automatic switching.

CN223841312UActive Publication Date: 2026-01-27COFOE MEDICAL TECH CO LTD
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Patent Information

Application Number
CN202520361888.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-03
Publication Date
2026-01-27
Estimated Expiration
2035-03-03

AI Technical Summary

Technical Problem

Existing ear thermometer probe connection methods suffer from problems such as complex assembly, high cost, insufficient magnetic field stability, and low manual efficiency. In particular, snap-fit ​​connections are prone to disassembly difficulties, and magnetic connections have insufficient magnetic field stability.

Method used

The device employs a dual magnetic component design. The first magnetic component is clamped between the probe housing and the bracket, while the second magnetic component is clamped between the cover and the protective cover. This achieves a stable connection through magnetic attraction and connects the cover via a snap-fit ​​mechanism, simplifying the assembly process and reducing production costs.

Benefits of technology

This technology enables stable installation of the ear thermometer probe, improves product reliability and durability, simplifies the assembly process, reduces production costs, and enhances the level of intelligence by enabling automatic mode switching through an electronic Hall switch.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an ear thermometer probe which comprises a probe body and a protective cover sleeved on the outer side of the probe body, the probe body comprises a probe shell, a probe support sleeved in an inner cavity of the probe shell and a sensor arranged on the end portion of the probe shell, the protective cover comprises a first cover body and a second cover body arranged in an inner cavity of the first cover body in a sleeved mode, and the first cover body and the second cover body are arranged in a clamped mode. The upper part of the probe body is provided with a first magnetic piece which is clamped between a probe shell and the probe bracket; the upper end of the protective cover is provided with a second magnetic piece which is positioned between the first cover body and the second cover body; the first magnetic piece and the second magnetic piece are opposite in magnetism so that the protective cover can be detachably arranged on the outer side of the probe body in a sleeving mode in a magnetic attraction mode. According to the utility model, the assembly is simple, the cost is reduced, and the product reliability is improved.
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Description

Technical Field

[0001] This utility model relates to an ear thermometer probe and an ear thermometer, belonging to the field of medical device technology. Background Technology

[0002] With the rapid development of modern technology, infrared thermometry has become an indispensable means of body temperature monitoring in the public health field due to its advantages of rapid response and high-precision measurement. Because the ear canal and forehead differ significantly in anatomical structure and infrared radiation energy, corresponding temperature measurement devices need to be equipped with temperature probes with different structural features. Currently, smart thermometers integrating dual-mode ear and forehead temperature detection have appeared on the market, with core components including the probe body, a detachable cover, and an infrared sensor module.

[0003] In existing technologies, the connection between the probe body and the cover mainly employs two methods: snap-fit ​​connection or magnetic connection. However, these designs still present several technical challenges: First, products using snap-fit ​​connections have complex assembly processes; overly tight snaps lead to disassembly difficulties, while overly loose snaps can easily cause components to detach. Furthermore, precision snap-fit ​​structures not only increase mold development costs but also add complexity to the assembly process. Second, while magnetic connections improve ease of assembly and disassembly, the symmetrical, opposite-pole magnet layout used in mainstream designs suffers from insufficient magnetic field stability, potentially leading to accidental separation. Simultaneously, issues such as difficulties in matching magnet polarity and low efficiency of manual assembly in the production process urgently need to be addressed. Utility Model Content

[0004] The present invention aims to address the above-mentioned technical problems by providing an ear thermometer probe and ear thermometer with convenient magnetic component installation and disassembly and a stable installation structure.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An ear thermometer probe includes a probe body and a protective cover sleeved on the outside of the probe body. The probe body includes a probe housing, a probe bracket sleeved in the inner cavity of the probe housing, and a sensor disposed at the end of the probe housing. The protective cover includes a first cover and a second cover sleeved in the inner cavity of the first cover, the first cover and the second cover being snapped together. A first magnetic element is disposed on the upper part of the probe body and sandwiched between the probe housing and the probe bracket, and a second magnetic element is disposed on the upper end of the protective cover and located between the first cover and the second cover. The first magnetic element and the second magnetic element have opposite magnetic properties, so that the protective cover is detachably sleeved on the outside of the probe body by magnetic attraction.

[0007] Thus, the first magnetic component is clamped between the probe housing and the probe bracket, and the second magnetic component is clamped between the first cover and the second cover. This double-fixing design ensures the stable installation of the magnetic components, improving the reliability and durability of the product. The first cover and the second cover are connected by a snap-fit ​​method, which is simple in structure and easy to assemble, further enhancing the overall strength of the protective cover. The magnetic components are fixed by clamping, eliminating the need for adhesives, simplifying the assembly process, reducing production costs, and being more environmentally friendly.

[0008] Based on the embodiments of this utility model, further optimizations can be made to this utility model. The optimized technical solutions are as follows:

[0009] In one specific embodiment, the top of the inner sidewall of the first cover is provided with a buckle extending in the axial direction of the first cover; the second cover includes a protrusion and a flange provided at the upper end of the protrusion, and the top end face of the flange has a groove that matches the buckle.

[0010] In one specific embodiment, a plurality of support members are provided on the inner wall of the first cover, which are distributed around the axis of the first cover; there is a receiving space between the upper end of the support member and the lower surface of the flange for placing the second magnetic member.

[0011] In one specific embodiment, a plurality of anti-collision blocks are provided on the inner wall of the first cover, which are distributed around the axis of the first cover, and the anti-collision blocks are located on the upper side of the support member.

[0012] In one specific embodiment, the probe housing includes an extension and a mounting portion disposed at the upper end of the extension, the probe bracket includes a fixing member disposed in the inner cavity of the extension and a connecting member disposed on the upper side of the mounting portion; the first magnetic element is disposed between the mounting portion and the connecting member.

[0013] In one specific embodiment, the mounting portion has a mounting groove for placing the first magnetic component, and the connector has a limiting component corresponding to the mounting groove; the limiting component has a semi-enclosed structure to fix the first magnetic component between the mounting portion and the connector.

[0014] In one specific embodiment, the first magnetic element is block-shaped, and the second magnetic element is ring-shaped.

[0015] In one specific embodiment, a light-emitting component is snapped onto the inner side of the probe housing. The light-emitting component includes a mounting sleeve and an illumination element disposed in the mounting sleeve.

[0016] In one specific embodiment, a PCB assembly is provided on the upper side of the probe body, and an electronic Hall switch is provided on the PCB assembly.

[0017] Based on the same inventive concept, this utility model also provides an ear thermometer, including an upper shell, a lower shell, and an ear thermometer probe as described above disposed on the lower shell.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1) The utility model ear thermometer probe and ear thermometer simplify the overall assembly process by embedding the first and second magnetic components into the probe body and protective cover, respectively. The magnetic components achieve stable fixation without adhesive bonding, reducing production costs and making the device more environmentally friendly.

[0020] 2) The ear thermometer probe and ear thermometer of this utility model make the installation of the second magnetic component on the protective cover more stable by clamping the second magnetic component between the first cover and the second cover, effectively avoiding the risk of the second magnetic component accidentally falling off; at the same time, the first magnetic component is fixed by the cooperation of the mounting groove and the limiting component, ensuring that it is firmly installed between the probe housing and the probe bracket, which significantly improves the reliability and durability of the product.

[0021] 3) The ear thermometer probe and ear thermometer of this utility model are equipped with an electronic Hall switch above the magnet on the probe body. When the protective cover is opened or closed, the Hall switch can sense the change in magnetic force, thereby realizing the automatic switching between ear temperature and forehead temperature modes, which improves the intelligence level of the product, simplifies user operation, and further optimizes the user experience. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the cross-sectional structure of the ear thermometer of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the first cover of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the first cover of this utility model equipped with the second magnetic component;

[0025] Figure 4 This is a schematic diagram of the structure of the second cover of this utility model;

[0026] Figure 5 This is a schematic diagram of the top of the second cover of this utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the probe housing of this utility model;

[0028] Figure 7This is an isometric structural diagram of the probe bracket of this utility model;

[0029] Figure 8 This is a schematic diagram of the top structure of the probe bracket of this utility model;

[0030] Figure 9 This is a schematic diagram of the internal structure of the ear thermometer probe of this utility model;

[0031] Figure 10 This is a structural schematic diagram of the first magnetic component and the second magnetic component of this utility model;

[0032] Figure 11 This is an exploded view of the ear thermometer probe of this utility model.

[0033] In the figure

[0034] 1-Probe body; 11-Probe housing; 111-Extension; 112-Mounting part; 113-Mounting groove; 12-Probe bracket; 121-Fixing component; 122-Connecting component; 123-Limiting component; 2-Protective cover; 21-First cover; 211-Snap; 212-Support component; 213-Anti-collision block; 22-Second cover; 221-Extension; 222-Flange; 223-Slot; 3-Sensor; 4-First magnetic component; 5-Second magnetic component; 6-Light-emitting component; 61-Mounting sleeve; 62-Lighting element; 7-PCB assembly; 71-Electronic Hall switch; 8-Upper shell; 9-Lower shell. Detailed Implementation

[0035] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other. For ease of description, the words "upper," "lower," "left," and "right" appearing below only indicate that they are consistent with the upper, lower, left, and right directions of the drawings themselves, and do not limit the structure.

[0036] like Figure 1 As shown, the ear thermometer probe of this embodiment includes a probe body 1 and a protective cover 2 sleeved on the outside of the probe body 1. The probe body 1 includes a probe housing 11, a probe bracket 12 sleeved in the inner cavity of the probe housing 11, and a sensor 3 disposed at the end of the probe housing 11.

[0037] like Figures 6-10As shown, the probe housing 11 includes an extension 111 and a mounting portion 112 disposed at the upper end of the extension 111. The probe bracket 12 includes a fixing member 121 disposed in the inner cavity of the extension 111 and a connecting member 122 disposed on the upper side of the mounting portion 112. The first magnetic element 4 is disposed between the mounting portion 112 and the connecting member 122. The mounting portion 112 has a mounting groove 113 for placing the first magnetic element 4, and the connecting member 122 is provided with a limiting member 123 corresponding to the mounting groove 113. The limiting member 123 has a semi-enclosed structure, fixing the first magnetic element 4 between the mounting portion 112 and the connecting member 122.

[0038] The lower end of the probe body 1 is used to mount and position the sensor 3, and the sensor 3 is clamped to the lower end of the probe housing 11 by the fixing member 121. The probe housing 11 and the probe bracket 12 are installed and fixed by the mounting part 112 and the connecting member 122. First, the probe housing is installed, the sensor 3 is placed at the lower end of the probe housing 11, and then the first magnetic element 4 is placed in the mounting groove 113. Then, the fixing member 121 of the probe bracket 12 is inserted into the extension part 111 of the probe housing 11, and the limiting member 123 is pressed on top of the first magnetic element 4 to fix the first magnetic element 4. Then, the mounting part 112 and the connecting member 122 are installed and fixed by screws. The first magnetic element 4 is fixed between the probe housing 11 and the probe bracket 12 by the cooperation of the mounting groove 113 and the limiting member 123, which makes the structure stable and easy to install. The limiting member 123 has a semi-enclosed structure to ensure that the first magnetic element 4 will not shift or fall off after installation, thus improving the reliability of the product.

[0039] like Figures 2-5 , Figures 9-10 As shown, the protective cover 2 includes a first cover body 21 and a second cover body 22 sleeved in the inner cavity of the first cover body 21. The first cover body 21 and the second cover body 22 are snapped together. A block-shaped first magnetic element 4 is provided between the probe housing 11 and the probe bracket 12. A second magnetic element 5 is provided at the upper end of the protective cover 2 between the first cover body 21 and the second cover body 22. The second magnetic element 5 is annular. The first magnetic element 4 and the second magnetic element 5 have opposite magnetic properties so that the protective cover 2 can be detachably sleeved on the outside of the probe body 1 by magnetic attraction.

[0040] The top of the inner wall of the first cover 21 is provided with a buckle 211 extending in the axial direction of the first cover 21; the second cover 22 includes a protrusion 221 and a flange 222 disposed on the upper end of the protrusion 221, and the top end face of the flange 222 has a groove 223 that matches the buckle 211. A plurality of support members 212 distributed around the axis of the first cover 21 are provided on the inner wall of the first cover 21; there is a receiving space between the upper end of the support member 212 and the lower surface of the flange 222 for placing the second magnetic member 5. A plurality of anti-collision blocks 213 distributed around the axis of the first cover 21 are provided on the inner wall of the first cover 21, and the anti-collision blocks 213 are located on the upper side of the support members 212.

[0041] Therefore, the second magnetic component 5 is first placed on the support component 212 of the first cover 21, and then the second cover 22 is inserted into the first cover 21. The slot 223 on the flange 222 of the second cover 22 is aligned with the buckle 211 on the inner wall of the first cover 21. Then the second cover 22 is snapped into the first cover 21, so that the buckle 211 is located in the slot 223. At the same time, the second magnetic component 5 will be pressed between the flange 222 and the support component 212, thus completing the assembly of the protective cover 2.

[0042] The second magnetic component 5 is located between the first cover 21 and the second cover 22. The first cover 21 and the second cover 22 are engaged by the cooperation of the buckle 211 and the slot 223. The structure is simple and easy to assemble, ensuring the stability of the second magnetic component 5. The support 212 on the inner wall of the first cover 21 and the flange 222 of the second cover 22 form a receiving space for placing the second magnetic component 5. The structure is compact and makes reasonable use of space.

[0043] Therefore, the assembled protective cover 2 is fitted onto the outside of the probe body 1. The magnetic attraction between the first magnetic component 4 and the second magnetic component 5 securely attaches the protective cover 2 to the probe body 1. The protective cover 2 is detachable via magnetic attraction, facilitating cleaning, replacement, or maintenance by the user. The first magnetic component 4 and the second magnetic component 5 are fixed by a clamping method, eliminating the need for adhesives, simplifying the assembly process, reducing production costs, and being more environmentally friendly.

[0044] like Figure 9As shown, a PCB assembly 7 is provided on the upper side of the probe body 1, and an electronic Hall switch 71 is provided on the PCB assembly 7. When the probe body 1 is fastened to the protective cover 2, the electronic Hall switch 71 senses the change in magnetic force and transmits a signal to the PCB assembly 7. According to the pre-set algorithm, it can switch to forehead temperature measurement mode. When the probe body 1 is separated from the protective cover 2, the electronic Hall switch 71 senses the change in magnetic force and transmits a signal to the PCB assembly 7. According to the pre-set algorithm, it can switch to ear temperature measurement mode, and the user can insert the ear thermometer into the external auditory canal to measure body temperature.

[0045] In this embodiment, the probe housing 11 of the ear thermometer probe is fitted with a light-emitting component 6. The light-emitting component 6 includes a mounting sleeve 61 and an illumination element 62 disposed in the mounting sleeve 61. This facilitates the user's insertion into the external auditory canal to measure body temperature.

[0046] This embodiment also provides an ear thermometer, including an upper shell, a lower shell, and an ear thermometer probe as described above disposed on the lower shell.

[0047] like Figures 1-11 As shown, the ear thermometer probe and ear thermometer of this embodiment have the following beneficial effects: the first magnetic component is fixed between the probe housing and the probe bracket by a mounting groove and a limiting component. The semi-enclosed structure of the limiting component ensures that the first magnetic component does not shift or fall off after installation, improving product reliability, and the overall structure is easy to install. The second magnetic component is located between the first cover and the second cover, and the two are engaged by a snap-fit ​​and a slot, which is simple in structure, easy to assemble, and ensures that the second magnetic component is installed firmly. The support and the flange form a space to accommodate the second magnetic component, which is compact and makes reasonable use of space. An electronic Hall switch is set on the PCB assembly on the upper side of the probe body. When the probe body is fastened or separated from the protective cover, the electronic Hall switch senses the change in magnetic force and transmits a signal to the PCB assembly, which can automatically switch between forehead temperature or ear temperature measurement mode according to the algorithm.

[0048] The above embodiments should be understood as being used only to illustrate the present invention more clearly, and not to limit the scope of the present invention. After reading the present invention, any modifications of the present invention by those skilled in the art in various equivalent forms fall within the scope defined by the appended claims.

Claims

1. An ear thermometer probe, comprising a probe body (1) and a protective cover (2) sleeved on the outside of the probe body (1), wherein the probe body (1) comprises a probe housing (11), a probe bracket (12) sleeved in the inner cavity of the probe housing (11), and a sensor (3) disposed at the end of the probe housing (11), characterized in that: The protective cover (2) includes a first cover body (21) and a second cover body (22) sleeved in the inner cavity of the first cover body (21). The first cover body (21) and the second cover body (22) are snapped together. A first magnetic element (4) is provided on the upper part of the probe body (1) and sandwiched between the probe housing (11) and the probe bracket (12). A second magnetic element (5) is provided on the upper end of the protective cover (2) and located between the first cover body (21) and the second cover body (22). The first magnetic element (4) and the second magnetic element (5) have opposite magnetism so that the protective cover (2) can be detachably sleeved on the outside of the probe body (1) by magnetic attraction.

2. The ear thermometer probe according to claim 1, characterized in that: The top of the inner wall of the first cover (21) is provided with a buckle (211) extending in the axial direction of the first cover (21); the second cover (22) includes a protrusion (221) and a flange (222) provided on the upper end of the protrusion (221), and the top end face of the flange (222) has a groove (223) that matches the buckle (211).

3. The ear thermometer probe according to claim 2, characterized in that: The inner wall of the first cover (21) is provided with a plurality of support members (212) distributed around the axis of the first cover (21). The upper end of the support member (212) and the lower surface of the flange (222) have a receiving space for placing the second magnetic member (5).

4. The ear thermometer probe according to claim 3, characterized in that: The inner wall of the first cover (21) is provided with a plurality of anti-collision blocks (213) distributed around the axis of the first cover (21), and the anti-collision blocks (213) are located on the upper side of the support (212).

5. The ear thermometer probe according to claim 1, characterized in that: The probe housing (11) includes an extension (111) and a mounting portion (112) disposed at the upper end of the extension (111). The probe bracket (12) includes a fixing member (121) disposed in the inner cavity of the extension (111) and a connecting member (122) disposed on the upper side of the mounting portion (112). The first magnetic member (4) is disposed between the mounting portion (112) and the connecting member (122).

6. The ear thermometer probe according to claim 5, characterized in that: The mounting part (112) has a mounting groove (113) for placing the first magnetic component (4), and the connector (122) is provided with a limiting component (123) corresponding to the mounting groove (113); the limiting component (123) has a semi-enclosed structure, which fixes the first magnetic component (4) between the mounting part (112) and the connector (122).

7. The ear thermometer probe according to any one of claims 1-6, characterized in that: The first magnetic component (4) is block-shaped, and the second magnetic component (5) is ring-shaped.

8. The ear thermometer probe according to any one of claims 1-6, characterized in that: The probe housing (11) is fitted with a light-emitting component (6) on its inner side. The light-emitting component (6) includes a mounting sleeve (61) and an illumination element (62) disposed in the mounting sleeve (61).

9. The ear thermometer probe according to any one of claims 1-6, characterized in that: The upper side of the probe body (1) is provided with a PCB assembly (7), and an electronic Hall switch (71) is provided on the PCB assembly (7).

10. An ear thermometer, characterized in that: It includes an upper shell (8), a lower shell (9), and an ear thermometer probe as described in any one of claims 1-9 disposed on the lower shell (9).