Ultrasonic welding waterproof shell and glucometer

Abstract

The utility model belongs to the technical field of medical instruments, and discloses an ultrasonic welding waterproof shell and a glucometer. The shell comprises an upper shell body and a lower shell body, the upper shell body and the lower shell body are in a cover shape, an upper turnup edge is formed in the circumferential direction of the upper shell body, a lower turnup edge is formed in the circumferential direction of the lower shell body, a first plane is formed on the upper turnup edge, a second plane is formed on the lower turnup edge, the first plane is in butt joint with the second plane, and an inserting part is formed on the first plane in a protruding mode. The second plane is sunken to form an inserting groove, the inserting part is inserted into the inserting groove and abuts against the inner wall of the inserting groove, and the upper shell and the lower shell are welded through ultrasonic waves; the problem that in the prior art, a shell on a glucometer is poor in waterproof capacity is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an ultrasonically welded waterproof housing and a blood glucose meter. Background Art

[0002] In the field of home blood glucose meters, electronic devices such as circuit boards are usually encapsulated in the spliced ​​shell of the blood glucose meter. The shell protects the internal circuit boards and other devices to avoid damage. The shell is usually made by ultrasonic welding, and the contact area of ​​the shell is flat. However, in daily use, the blood glucose meter may fall into the water. Due to the high water pressure, the liquid will enter the interior along the gaps formed by the splicing of the shells, causing water ingress and damage to the circuit board, which in turn causes damage to the blood glucose meter and makes it unusable. Utility Model Content

[0003] The purpose of the utility model is to provide an ultrasonically welded waterproof housing and a blood glucose meter, so as to solve the problem that the housing of the blood glucose meter in the prior art has poor waterproof capability.

[0004] To achieve this purpose, the present invention adopts the following technical solution: The present invention provides an ultrasonically welded waterproof shell, comprising an upper shell and a lower shell, the upper shell and the lower shell are in a cover shape, an upper flange is formed circumferentially on the upper shell, and a lower flange is formed circumferentially on the lower shell, a first plane is formed on the upper flange, and a second plane is formed on the lower flange, the first plane and the second plane are butted against each other, a plug-in portion is formed on a protrusion on the first plane, and a plug-in groove is formed on a recessed portion on the second plane, the plug-in portion is plugged into the plug-in groove, the plug-in portion abuts against the inner wall of the plug-in groove, and the upper shell and the lower shell are ultrasonically welded.

[0005] Preferably, a positioning piece is formed at the top of the plug-in portion, the cross-section of the positioning piece is triangular, the positioning piece is plugged into the bottom of the plug-in slot, a plug-in area is formed at the bottom of the plug-in slot, and the positioning piece abuts against the plug-in area.

[0006] Preferably, the inner wall of the insertion area is interference fit with the positioning piece.

[0007] Preferably, the positioning member is connected to the first plane through an extension member, an abutment area is formed on the upper side of the insertion slot, the extension member is inserted into the abutment area, the extension member is connected to the side wall of the abutment area, and the cross-section of the extension member is rectangular.

[0008] Preferably, the extension piece is interference fit with the inner wall of the abutment area.

[0009] Preferably, the plug-in slots are distributed circumferentially along the edge of the lower shell, and the plug-in portions are distributed circumferentially along the edge of the upper shell.

[0010] A blood glucose meter includes the ultrasonically welded waterproof housing described above and a circuit board. The upper housing and the lower housing form a mounting cavity, and the circuit board is fixed in the mounting cavity.

[0011] Beneficial effects: By adding the plug-in part and the plug-in slot, the contact area between the upper shell and the lower shell is increased. During the ultrasonic welding process, the first plane and the second plane of the upper shell and the lower shell are connected to each other in a molten state. Since the plug-in part and the plug-in slot increase the contact area, the area of ​​the molten connection between the upper shell and the lower shell is enlarged, making the connection between the upper shell and the lower shell tighter, better sealed, and more waterproof, avoiding water ingress and short circuit of the circuit board, and improving the reliability of the blood glucose meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a cross-sectional view of the ultrasonically welded waterproof housing of the utility model;

[0013] Figure 2 This is the main body diagram of the utility model blood glucose meter.

[0014] In the figure: 1, upper shell; 11, upper flange; 12, first plane; 2, lower shell; 21, lower flange; 22, second plane; 3, plug-in portion; 31, positioning member; 32, extension member. DETAILED DESCRIPTION

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0016] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0017] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0018] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0019] Under existing technology, electronic medical devices such as blood glucose meters may fall into water during daily use. The shells of the instruments are ultrasonically welded together. Since the contact surface between the shells is too narrow, liquid will enter the interior of the shells along the contact surface, and the waterproof level is low. This will cause water to enter the equipment, short-circuit the electronic components, and ultimately damage the blood glucose meter, reducing the life of the blood glucose meter.

[0020] In order to solve the above problems, Figures 1 to 2 As shown, the utility model provides an ultrasonically welded waterproof shell, which includes an upper shell 1 and a lower shell 2. The upper shell 1 and the lower shell 2 are in a cover shape, an upper flange 11 is formed circumferentially on the upper shell 1, and a lower flange 21 is formed circumferentially on the lower shell 2. A first plane 12 is formed on the upper flange 11, and a second plane 22 is formed on the lower flange 21. The first plane 12 and the second plane 22 are butted against each other, a plug-in portion 3 is formed in a convex shape on the first plane 12, and a plug-in groove is formed in a concave shape on the second plane 22. The plug-in portion 3 is plugged into the plug-in groove, and the plug-in portion 3 abuts against the inner wall of the plug-in groove. The upper shell 1 and the lower shell 2 are ultrasonically welded, and a circuit board of a blood glucose meter is installed in the installation cavity surrounded by the upper shell 1 and the lower shell 2, so that the shell formed by splicing the upper shell 1 and the lower shell 2 can form the outer shell of the blood glucose meter, so that the internal circuit board can work normally, and the blood glucose is detected for the user through the upper shell 1, the lower shell 2 and the circuit board.

[0021] By adding a plug-in portion 3 on the first plane 12 and a plug-in groove on the second plane 22, the contact area between the upper shell 1 and the lower shell 2 is increased by the plug-in portion 3 and the plug-in groove, so that the connection between the upper shell 1 and the lower shell 2 is tighter, and the distance for external liquid to enter the interior of the shell along the upper shell 1 and the lower shell 2 is longer, so that the airtightness inside the upper shell 1 and the lower shell 2 is better, and the waterproof level is improved. When the blood glucose meter composed of the upper shell 1 and the lower shell 2 is used in daily life, its service life can be extended, and the reliability of the blood glucose meter is made higher.

[0022] The plug-in portion 3 of the present invention is divided into two parts, wherein a positioning piece 31 is formed at the top end, and the cross-section of the positioning piece 31 is triangular. The positioning piece 31 is plugged into the bottom of the plug-in slot, and a plug-in area is formed at the bottom of the plug-in slot. The positioning piece 31 abuts against the plug-in area. Since the positioning piece 31 is pointed, it is convenient to plug the upper shell 1 into the lower shell 2, so that the upper shell 1 and the lower shell 2 can be quickly and accurately docked. The inclined surface formed at the front end of the triangular positioning piece 31 can abut against the plug-in slot on the lower side, playing a guiding role, thereby avoiding the problem of damage to the plug-in portion 3 during the plug-in process.

[0023] The inner wall of the plug-in area is interference-fitted with the positioning piece 31, so that the plug-in area and the positioning piece 31 fit more tightly, and the upper shell 1 and the lower shell 2 are spliced ​​more tightly during the ultrasonic welding process, so that the ultrasonic welding effect is better.

[0024] Positioning member 31 is connected to first plane 12 via extension member 32. An abutment area is formed on the upper side of the insertion slot. Extension member 32 is inserted into this abutment area, abutting the sidewalls of the abutment area. Extension member 32 has a rectangular cross-section. The sidewalls of extension member 32 contact the inner walls of the abutment area, extending the contact area between the insertion slot and the insertion portion 3. This increases the ultrasonic welding area between upper shell 1 and lower shell 2, improving waterproofing. Furthermore, extension member 32 creates an interference fit with the inner wall of the abutment area, ensuring a tighter connection during ultrasonic welding. This ultimately improves waterproofing and allows the device to withstand greater water pressure.

[0025] The plug-in slots are distributed circumferentially along the edge of the lower shell 2, and the plug-in portion 3 is distributed circumferentially along the edge of the upper shell 1. The blood glucose meter of the present invention is elliptical, and the plug-in slots and the plug-in portion 3 are distributed along the edge of the blood glucose meter, providing 360° annular protection for the blood glucose meter and improving its waterproof capability.

[0026] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An ultrasonically welded waterproof housing, characterized in that: The invention comprises an upper shell (1) and a lower shell (2), wherein the upper shell (1) and the lower shell (2) are in the shape of a cover, an upper flange (11) is formed circumferentially on the upper shell (1), and a lower flange (21) is formed circumferentially on the lower shell (2), a first plane (12) is formed on the upper flange (11), and a second plane (22) is formed on the lower flange (21), the first plane (12) and the second plane (22) are butted, a plug-in portion (3) is formed convexly on the first plane (12), and a plug-in slot is formed concavely on the second plane (22), the plug-in portion (3) is plugged into the plug-in slot, and the plug-in portion (3) abuts against the inner wall of the plug-in slot, and the upper shell (1) and the lower shell (2) are welded by ultrasonic welding.

2. The ultrasonic welding waterproof housing according to claim 1, characterized in that: A positioning piece (31) is formed at the top of the plug-in portion (3), and the cross section of the positioning piece (31) is triangular. The positioning piece (31) is plugged into the bottom of the plug-in slot, and a plug-in area is formed at the bottom of the plug-in slot. The positioning piece (31) abuts against the plug-in area.

3. The ultrasonic welding waterproof housing according to claim 2, characterized in that: The inner wall of the plug-in area is interference-fitted with the positioning piece (31).

4. The ultrasonic welding waterproof housing according to claim 2, characterized in that: The positioning member (31) is connected to the first plane (12) through an extension member (32); an abutment area is formed on the upper side of the insertion slot; the extension member (32) is inserted into the abutment area; the extension member (32) is connected to the side wall of the abutment area; and the cross section of the extension member (32) is rectangular.

5. The ultrasonic welding waterproof housing according to claim 4, characterized in that: The extension piece (32) is interference-fitted with the inner wall of the abutment area.

6. The ultrasonic welding waterproof housing according to claim 1, characterized in that: The plug-in slots are distributed along the circumference of the edge of the lower shell (2), and the plug-in portions (3) are distributed along the circumference of the edge of the upper shell (1).

7. A blood glucose meter, characterized in that: The ultrasonic welding waterproof housing according to claim 1 further comprises a circuit board, wherein the upper housing (1) and the lower housing (2) form a mounting cavity, and the circuit board is fixed in the mounting cavity.

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