Waterproof structure of thermometer and electronic thermometer

Abstract

The utility model relates to the technical field of temperature detection, in particular to a waterproof structure of a thermometer and an electronic thermometer. A waterproof structure of a thermometer comprises a front shell, a rear shell and a probe protective sleeve, an ultrasonic line is arranged at the joint of the rear shell and the front shell, the rear shell and the front shell are in ultrasonic assembly connection through the ultrasonic line, and an installation cavity used for installing a thermometer circuit board is formed between the front shell and the rear shell; one end of the front shell is hermetically and fixedly connected with a probe protection sleeve for mounting a temperature sensing probe; a battery mounting groove is formed in the rear shell, and a battery cover is connected into the battery mounting groove in a sealed mode. An ultrasonic line is arranged at the joint of the rear shell and the front shell, the rear shell and the front shell are in ultrasonic assembly connection through the ultrasonic line, ultrasonic welding is assisted by the ultrasonic line, the rear shell and the front shell of the thermometer are firmly connected together, the sealing performance of the thermometer is ensured, and moisture and dust can be effectively prevented from entering the thermometer.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature detection, and more particularly to a waterproof structure of a thermometer and an electronic thermometer. Background Art

[0002] Body temperature is data that must be known when diagnosing and treating many diseases. The commonly used method at present is to use a glass mercury thermometer to measure the temperature of the mouth, submerged body or anus. Its use requires several minutes of thermal equilibrium time, which causes discomfort to the person being measured. At the same time, the measurement value of the mercury thermometer is not easy to read, and if it is not disinfected properly, it may cause cross infection. Therefore, various types of electronic thermometers have appeared in recent years. Due to installation requirements, electronic thermometers are generally composed of a front shell and a rear shell connected together, thereby forming an installation cavity between the front shell and the rear shell. The circuit board of the thermometer is inserted into the interior of the thermometer, and the thermometer battery is installed in the installation cavity. This structure makes its waterproof effect less than ideal. As the use time increases, a gap is very likely to appear between the front shell and the rear shell, thereby affecting the waterproof effect. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a waterproof structure of a thermometer and an electronic thermometer.

[0004] The technical solution adopted in this utility model is:

[0005] A waterproof structure of a thermometer includes: a front shell, a rear shell and a probe protective cover. An ultrasonic line is provided at the connection between the rear shell and the front shell, and the rear shell and the front shell are ultrasonically assembled and connected via the ultrasonic line. An installation chamber for installing a thermometer circuit board is formed between the front shell and the rear shell; one end of the front shell is sealed and fixedly connected to the probe protective cover for installing a temperature sensing probe; a battery installation groove is provided on the rear shell, and a battery cover is sealed in the battery installation groove.

[0006] Optionally, the probe protective cover is an elastic soft head, the probe protective cover is seamlessly and sealedly connected to the front shell, and the diameter of the probe protective cover close to the front shell is larger than the diameter of the probe protective cover away from the front shell.

[0007] Optionally, a display screen mounting slot for mounting an electronic display screen is provided on the front housing.

[0008] Optionally, waterproof stickers are provided on the outer surfaces of the front housing and the electronic display screen in the display screen installation groove.

[0009] Optionally, the surface sticker includes: a waterproof film, which is adhered to the front shell and the outer surface of the electronic display screen through pressure-sensitive adhesive.

[0010] Optionally, the surface sticker further includes: a silicone sealing ring, which is connected to the connection between the display screen installation groove and the electronic display screen.

[0011] Optionally, an annular groove is provided on the side surface where the battery cover is connected to the battery mounting groove of the rear housing, and an annular sealing ring is sleeved in the annular groove.

[0012] Optionally, a plurality of slots and a plurality of arc-shaped baffles are provided in the battery mounting slot of the rear shell, and the plurality of slots and the plurality of arc-shaped baffles are arranged at intervals and staggered; a plurality of plug-ins are provided on the battery cover, and after the plurality of plug-ins pass through the plurality of slots, they can be rotated along the axis of the battery mounting slot and clamped on the inner side surfaces of the plurality of arc-shaped baffles, and one end of the arc-shaped baffle is provided with a guiding inclined surface; a fixed end of a limit block is fixed on the inner side surface of the arc-shaped baffle, and the elastic end of the limit block is clamped in the locking slot on the outer side surface of the plug-in block, and one end of the plug-in block contacts the fixed end of the limit block.

[0013] An electronic thermometer comprises: a waterproof structure of a thermometer as described in any of the above items, a thermometer circuit board installed in the installation chamber of the waterproof structure, the thermometer circuit board electrically connected to a temperature sensing probe installed in a probe protective cover and an electronic display screen installed on a front shell.

[0014] The beneficial effects of the utility model are:

[0015] In the waterproof structure of a thermometer and an electronic thermometer of the present invention, an ultrasonic line is provided at the connection between the rear shell and the front shell, and the rear shell and the front shell are ultrasonically assembled and connected through the ultrasonic line. The ultrasonic line is assisted by ultrasonic welding to firmly connect the rear shell and the front shell of the thermometer, and ensure their sealing, which can effectively prevent moisture and dust from entering the interior; the battery installation groove on the rear shell is sealed with a battery cover, making it very convenient to replace the thermometer battery without disassembling the rear shell and the front shell, further reducing the probability of leakage, ensuring the structural stability of the rear shell and the front shell, and improving the service life.

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 A schematic diagram of a waterproof structure of a thermometer provided in an embodiment of the utility model Figure 1 ;

[0019] Figure 2A schematic diagram of a waterproof structure of a thermometer provided in an embodiment of the utility model Figure 2 ;

[0020] Figure 3 Schematic diagram of the front shell provided by the embodiment of the utility model Figure 1 ;

[0021] Figure 4 Schematic diagram of the front shell provided by the embodiment of the utility model Figure 2 ;

[0022] Figure 5 Schematic diagram of the rear housing provided by the embodiment of the utility model Figure 1 ;

[0023] Figure 6 Schematic diagram of the rear housing provided by the embodiment of the utility model Figure 2 ;

[0024] Figure 7 A schematic diagram of a battery cover provided in an embodiment of the present utility model;

[0025] Figure 8 A schematic diagram of an electronic thermometer provided in an embodiment of the present utility model.

[0026] Icons: front shell 1; rear shell 2; probe protective cover 3; battery installation slot 4; battery cover 5; display screen installation slot 6; electronic display screen 7; annular groove 8; slot 9; arc-shaped baffle 10; insert 11; guide slope 12; limit block 13; elastic end 14; locking slot 15. DETAILED DESCRIPTION

[0027] In order to clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings, it is obvious that the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative efforts shall fall within the scope of protection of the present invention.

[0028] It should be understood that terms such as “having”, “including” and “comprising” used herein do not preclude the existence or addition of one or more other elements or combinations thereof.

[0029] See also Figure 1-8The utility model provides a waterproof structure of a thermometer, including: a front shell 1, a rear shell 2 and a probe protective cover 3. The front shell 1 and the rear shell 2 are sealed and connected, and an installation chamber for installing a thermometer circuit board is formed between the front shell 1 and the rear shell 2; one end of the front shell 1 is sealed and fixedly connected to the probe protective cover 3 for installing a temperature sensing probe; a battery installation groove 4 is provided on the rear shell 2, and a battery cover 5 is sealed and connected in the battery installation groove 4; an ultrasonic line is provided at the connection between the rear shell 2 and the front shell 1, and the rear shell 2 and the front shell 1 are ultrasonically assembled and connected through the ultrasonic line.

[0030] The working principle and technical effects of the above technical solution are as follows:

[0031] In a waterproof structure of a thermometer provided by the present invention, an ultrasonic line is provided at the connection between the rear shell 2 and the front shell 1, and the rear shell 2 and the front shell 1 are ultrasonically assembled and connected by the ultrasonic line. The ultrasonic line is assisted by ultrasonic welding to firmly connect the rear shell 2 and the front shell 1 of the thermometer, and ensure its sealing, which can effectively prevent moisture and dust from entering the interior, thereby protecting the internal electronic components and circuit boards. In actual use, especially in a humid environment or when cleaning is required, the durability and reliability of the thermometer can be significantly improved; one end of the front shell 1 is sealed and fixedly connected to the probe for installing the temperature sensing probe The head protective cover 3, this sealed fixation can prevent liquid from entering the installation chamber where the thermometer circuit board is installed through the gap between the probe protective cover 3 and the front shell 1, further improving the waterproof performance; the front shell 1 and the rear shell 2 are assembled by ultrasonic welding (ultrasonic line), ensuring the firmness and sealing of the connection, and can provide high-strength fixation to prevent the front shell 1 and the rear shell 2 from loosening or falling off during use; at the same time, this connection method also has the characteristics of anti-disassembly, which improves the overall safety of the product; a battery installation slot is provided on the rear shell 2, and the battery cover 5 is connected by sealing to ensure the waterproof performance of the battery compartment. The battery is an important component of the thermometer. The waterproof design of the battery compartment ensures that the thermometer is not easily invaded by water even when the battery is replaced, while maintaining the convenience of battery replacement; a good waterproof design can not only prevent liquid from penetrating into the interior of the thermometer, but also facilitate the user to clean and disinfect the thermometer, which is especially important for medical equipment. It can effectively avoid cross infection and ensure the hygiene and safety of the user.

[0032] The probe protective cover 3 is a flexible, soft-tipped design, seamlessly and tightly connected to the front housing 1. The diameter of the probe protective cover 3 at the end closest to the front housing 1 is larger than the diameter at the end farther from the front housing 1. This seamless connection effectively prevents gas and liquid penetration, ensuring the waterproof and dustproof properties of the thermometer's internal components, and improving the device's long-term stability and reliability, making it particularly suitable for use in wet or humid environments. The probe protective cover 3 is made of a flexible, soft material, providing a more comfortable contact, especially when measuring body temperature. This gentle contact with the skin reduces user irritation, which is particularly important for children and those with sensitive skin, ensuring a comfortable and safe measurement process. The diameter of one end of the probe protective cover is larger than the other, making installation and removal easier. During installation, the user can easily push the cover into the front housing without applying excessive force, reducing the risk of damage. The probe protective cover's elastic material adapts well to different probe shapes, and its elastic design also helps absorb external shocks to a certain extent. This feature provides a certain degree of protection from collisions or drops, reducing the risk of damage.

[0033] The front housing 1 is provided with a display screen mounting slot 6 for mounting an electronic display screen 7. Both the front housing 1 and the outer surfaces of the electronic display screen 7 within the display screen mounting slot 6 are provided with waterproofing adhesive. This adhesive includes a waterproof film adhered to the front housing 1 and the outer surfaces of the electronic display screen 7 using pressure-sensitive adhesive. The adhesive also includes a silicone sealing ring connected to the junction of the display screen mounting slot 6 and the electronic display screen 7. This sealing structure effectively prevents liquids or dust from entering the mounting chamber formed between the front housing 1 and the rear housing 2 through the gap between the display screen mounting slot 6 and the electronic display screen 7.

[0034] An annular groove 8 is provided on the side surface where the battery cover 5 is connected to the battery installation groove 4 of the rear housing 2 , and an annular sealing ring is sleeved in the annular groove 8 .

[0035] The design of the annular sealing ring can effectively block the intrusion of moisture and dust, especially at the position of the battery installation slot, which can ensure the safety of the internal components of the electronic thermometer, not be affected by the external environment, and extend the service life of the device; the annular sealing ring can provide a better contact surface, making the connection between the battery cover 5 and the rear shell 2 more stable. The annular sealing ring is made of elastic material (such as rubber or silicone) and can adapt to changes in ambient temperature; the annular sealing ring can also play a certain vibration isolation role. When the device is subjected to slight collision or vibration, the sealing ring can buffer these impacts and reduce possible damage to the battery and internal circuit.

[0036] The battery mounting slot 4 of the rear housing 2 is provided with multiple slots 9 and multiple curved baffles 10, which are arranged in an alternating pattern. The battery cover 5 is provided with multiple inserts 11. After passing through the multiple slots 9, the inserts 11 can be rotated along the axis of the battery mounting slot 4 to engage with the inner side surfaces of the multiple curved baffles 10. One end of the curved baffle 10 is provided with a guiding slope 12. The fixed end of a limiting block 13 is fixed to the inner side surface of the curved baffle 10. The elastic end 14 of the limiting block 13 engages with a locking slot 15 on the outer side surface of the insert 11, and one end of the insert 11 contacts the fixed end of the limiting block 13. The contact surfaces between the multiple curved baffles 10 and the multiple inserts 11 are also provided with rubber anti-slip ridges to enhance the stability of the multiple curved baffles 10 and the multiple inserts 11 when engaged.

[0037] When installing the battery cover 5, first control the battery cover 5 to align with the battery mounting slot 4, then control the multiple plug-ins 11 on the battery cover 5 to pass through the multiple slots 9 first, and then control the battery cover 5 to rotate. When the battery cover 5 rotates along the axis of the battery mounting slot 4 in the battery mounting slot 4, the multiple plug-ins 11 can slide to the inner side surfaces of the multiple arc-shaped baffles 10, thereby preventing the battery cover 5 from being separated from the battery mounting slot 4 through the obstruction of the arc-shaped baffles 10, and the fixed end of the limiting card block 13 is fixed on the inner side surface of the arc-shaped baffle 10. After the battery cover 5 is rotated by a preset angle, one end of the plug-in block 11 contacts the fixed end of the limiting card block 13, and the elastic end 14 of the limiting card block 13 is engaged with the locking card slot 15 on the outer side surface of the plug-in block 11. At this time, the axial limitation of the battery cover 5 is realized to prevent the battery cover 5 from rotating loose. movement; one end of the arc-shaped baffle 10 is provided with a guiding slope, which is used to guide the plug-in block 11 to be more accurately and quickly connected to the inner side of the arc-shaped baffle 10 when installing the battery cover 5. After the plug-in block 11 passes through the slot 9, it rotates to the inner side of the arc-shaped baffle 10 and is fixed to the inner side of the arc-shaped baffle 10 by the fixed end of the limiting block 13, and the elastic end 14 is inserted into the locking slot 15 on the outside of the plug-in block. This design locks the plug-in block 11 during the rotation process, ensuring that the battery cover 5 is firmly installed on the rear shell, achieving the function of limiting and fixing, and preventing the battery cover 5 from accidentally loosening or falling off; the elastic end 14 of the limiting block 13 is designed to absorb external vibration to a certain extent, reduce the loosening of the battery cover and the connection parts due to vibration or collision, and enhance the overall anti-vibration performance of the product.

[0038] An electronic thermometer includes the aforementioned waterproof structure. A thermometer circuit board is installed in the installation chamber of the waterproof structure. The thermometer circuit board is electrically connected to a temperature sensing probe installed in a probe protective cover 3 and an electronic display screen 7 installed on a front housing 1. The electronic thermometer has good waterproof performance, is stable in use, and is easy to operate.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0040] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0041] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with this field, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A waterproof structure of a thermometer, characterized in that: include: The front shell (1), the rear shell (2) and the probe protective cover (3) are provided with an ultrasonic line at the connection between the rear shell (2) and the front shell (1), and the rear shell (2) and the front shell (1) are ultrasonically assembled and connected via the ultrasonic line. An installation chamber for installing a thermometer circuit board is formed between the front shell (1) and the rear shell (2); one end of the front shell (1) is sealed and fixedly connected to the probe protective cover (3) for installing a temperature sensing probe; the rear shell (2) is provided with a battery installation groove (4), and the battery installation groove (4) is sealed and connected to a battery cover (5).

2. The waterproof structure of a thermometer according to claim 1, characterized in that: The probe protection cover (3) is an elastic soft head.

3. The waterproof structure of a thermometer according to claim 1, characterized in that: The probe protective cover (3) and the front shell (1) are seamlessly and sealedly connected, and the diameter of the end of the probe protective cover (3) close to the front shell (1) is larger than the diameter of the end of the probe protective cover (3) away from the front shell (1).

4. The waterproof structure of a thermometer according to claim 1, characterized in that: A display screen mounting groove (6) for mounting an electronic display screen (7) is provided on the front housing (1).

5. The waterproof structure of a thermometer according to claim 1, characterized in that: The front housing (1) and the outer surface of the electronic display screen (7) in the display screen installation groove (6) are both provided with surface stickers for waterproofing.

6. The waterproof structure of a thermometer according to claim 5, characterized in that: The face patch includes: A waterproof film is adhered to the outer surface of the front housing (1) and the electronic display screen (7) through pressure-sensitive adhesive.

7. The waterproof structure of a thermometer according to claim 6, characterized in that: The surface sticker also includes a silicone sealing ring, which is connected to the connection between the display screen installation groove (6) and the electronic display screen (7).

8. The waterproof structure of a thermometer according to claim 1, characterized in that: An annular groove (8) is provided on the side surface where the battery cover (5) is connected to the battery installation groove (4) of the rear housing (2), and an annular sealing ring is sleeved in the annular groove (8).

9. The waterproof structure of a thermometer according to claim 8, characterized in that: A plurality of slots (9) and a plurality of arc-shaped baffles (10) are provided in the battery installation slot (4) of the rear shell (2), and the plurality of slots (9) and the plurality of arc-shaped baffles (10) are arranged at intervals and staggered; a plurality of inserting blocks (11) are provided on the battery cover (5); after the plurality of inserting blocks (11) pass through the plurality of slots (9), they can be rotated along the axis of the battery installation slot (4) and clamped on the inner side surfaces of the plurality of arc-shaped baffles (10), and one end of the arc-shaped baffle (10) is provided with a guiding inclined surface (12); a fixed end of a limiting card block (13) is fixed on the inner side surface of the arc-shaped baffle (10), and an elastic end (14) of the limiting card block (13) is clamped in a locking card slot (15) on the outer side surface of the inserting block (11), and one end of the inserting block (11) contacts the fixed end of the limiting card block (13).

10. An electronic thermometer, characterized in that include: A waterproof structure for a thermometer as described in any one of claims 1 to 9, wherein a thermometer circuit board is installed in an installation chamber of the waterproof structure, and the thermometer circuit board is electrically connected to a temperature sensing probe installed in a probe protective cover (3) and an electronic display screen (7) installed on a front shell (1).

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