Connecting structure and rainfall sensor

Abstract

The utility model belongs to the technical field of sensors, and particularly provides a connecting structure and a rainfall sensor.The connecting structure comprises a base and a to-be-installed part, a limiting groove is formed in the position, opposite to the to-be-installed part, of the base, and at least part of the to-be-installed part is arranged in the limiting groove; and the groove bottom of the limiting groove is provided with a fuse guide wire, and the fuse guide wire can be fused so as to be connected with the to-be-installed part. According to the connecting structure, the meltable guide melting wire is arranged at the groove bottom of the limiting convex groove to be connected with the to-be-installed part, the connecting strength of the to-be-installed part can be improved, and therefore the to-be-installed part is prevented from loosening or falling off; meanwhile, compared with adhesive fixation, additional materials do not need to be added, the dispensing and curing time is saved, and therefore the production efficiency is improved.

Description

Technical Field

[0001] The present application belongs to the field of sensor technology, and in particular relates to a connection structure and a rainfall sensor. Background Art

[0002] A rain sensor is a device used to detect rainfall. It emits light through a light-emitting element, and the light passes through a lens to illuminate the detection area. When raindrops fall, the refraction and reflection of the light will change. The receiving element calculates the amount of rainfall based on the change in the received light intensity.

[0003] As an important component of the rain sensor, the lens can effectively focus the light, so that the rain sensor can receive and detect relevant signals more accurately.

[0004] At present, the lens in the rain sensor is mostly installed by gluing, that is, using a special adhesive to stick the lens to the specified position. However, the strength of the lens fixed by gluing is limited. When subjected to a large external impact or long-term vibration, the lens is prone to loosening or falling off. Utility Model Content

[0005] Therefore, the technical problem to be solved by the present application is to provide a connection structure and a rain sensor, by arranging a fusible fuse at the bottom of the limiting groove to connect the parts to be installed, thereby improving the connection strength of the parts to be installed and preventing the parts to be installed from loosening or falling off.

[0006] In order to solve the above problems, the present application provides a connection structure on the one hand, including a base and a part to be installed, a limiting groove is opened on the base at a position relative to the part to be installed, at least a part of the part to be installed is arranged in the limiting groove, and the bottom of the limiting groove has a fuse, which can be melted to connect the part to be installed.

[0007] Optionally, a limiting hole is provided at the bottom of the limiting groove, and the component to be installed can pass through the base through the limiting hole.

[0008] Optionally, a plurality of limiting grooves are provided.

[0009] Optionally, the connection structure further includes a fixture, which is used to carry the part to be installed, and a plurality of installation grooves are formed on the fixture at positions relative to the plurality of limiting grooves, and the bottoms of the plurality of installation grooves are located in the same plane.

[0010] Optionally, the connection structure further includes a welding device, the welding device includes a bottom mold, and the fixture is relatively fixed to the bottom mold.

[0011] Optionally, the welding equipment further comprises a welding head, which is arranged toward the substrate and the part to be installed, and is used to emit ultrasonic energy. Under the action of the ultrasonic energy, the fuse has a tendency to melt.

[0012] Optionally, the welding head is liftably arranged on a side of the base away from the fixture, and the welding head is also used to press the base and the part to be installed.

[0013] Optionally, one end of the welding head close to the substrate has a welding surface, and the shape of the welding surface is the same as the shape of the projection of the substrate on the welding head.

[0014] Optionally, the welding surface includes an avoidance zone and a release zone, the avoidance zone is the area where the projection of the part to be installed on the welding surface is located, the release zone is the area outside the projection of the part to be installed on the welding surface, and the release zone is used to transmit ultrasonic waves.

[0015] Another aspect of the present application provides a rain sensor, comprising any one of the connection structures described above.

[0016] Beneficial Effects

[0017] An embodiment of the utility model provides a connection structure and a rain sensor, wherein the connection structure is capable of improving the connection strength of the parts to be installed by arranging a fusible fuse at the bottom of the limiting groove to connect the parts to be installed, thereby preventing the parts to be installed from loosening or falling off; at the same time, compared with gluing and fixing, no additional materials are needed, and the glue curing time is saved, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of a connection structure of an optional embodiment of the present application;

[0019] Figure 2 This is a schematic structural diagram of a substrate of an optional embodiment of the present application;

[0020] Figure 3 This is a schematic structural diagram of a welding head according to an optional embodiment of the present application.

[0021] The reference numerals are:

[0022] 1. Base; 11. Limiting groove; 12. Fuse wire; 13. Limiting hole; 2. Parts to be installed; 3. Fixture; 31. Installation groove; 4. Bottom mold; 5. Welding head; 51. Welding surface; 511. Avoidance area; 512. Release area. DETAILED DESCRIPTION

[0023] In the description of the present application, 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" and the like 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0026] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0027] See also Figures 1 to 3 As shown, according to one aspect of an embodiment of the present application, a connection structure is provided, including a base 1 and a part to be installed 2, a limiting groove 11 is opened on the base 1 at a position relative to the part to be installed 2, at least a portion of the part to be installed 2 is arranged in the limiting groove 11, and the bottom of the limiting groove 11 has a fuse 12, which can be melted to connect the part to be installed 2.

[0028] The connection structure provided in the embodiment of the present application can improve the connection strength of the part to be installed 2 by arranging a fusible fuse wire 12 at the bottom of the limiting groove to connect the part to be installed 2, thereby preventing the part to be installed 2 from loosening or falling off; at the same time, compared with gluing and fixing, there is no need to add additional materials, and the glue curing time is saved, thereby improving production efficiency.

[0029] Among them, the connection structure provided in the embodiments of the present application can be applied to sensors, electronic components, circuit boards, toys, etc.

[0030] Specifically, in the embodiment of the present application, the connection structure is applied to a rain sensor. It should be noted that when the connection structure is applied to a rain sensor, the base 1 is the front shell of the rain sensor, and the component to be mounted 2 is the lens of the rain sensor.

[0031] The base 1 is used to fix the component 2 to be installed. The base 1 provides a stable installation position for the component 2 to be installed.

[0032] Specifically, a limiting groove 11 is provided on the base 1 at a position relative to the part 2 to be installed, and the shape of the limiting groove 11 is adapted to the shape of the part 2 to be installed, so that at least a portion of the part 2 to be installed can be embedded in the limiting groove 11, thereby achieving the purpose of positioning the part 2 to be installed.

[0033] A fuse 12 is disposed at the bottom of the limiting groove 11. As an implementation mode, the fuse 12 and the limiting groove 11 are integrally formed. As another implementation mode, the fuse 12 and the limiting groove 11 are separate, and the fuse 12 is fixed to the bottom of the limiting groove 11. In the embodiment of the present application, the fuse 12 and the limiting groove 11 are integrally formed.

[0034] Specifically, when the component 2 to be installed is embedded in the limiting groove 11, the component 2 to be installed contacts the fuse 12. Since the fuse 12 can be melted, the purpose of connecting the component 2 to be installed and the substrate 1 can be achieved. It can be understood that the melting of the fuse 12 can be achieved by ultrasonic energization or heating.

[0035] In some possible implementations provided in this application, see Figure 2 As shown, a plurality of limiting grooves 11 are provided.

[0036] For example, when the connecting structure is applied to a rain sensor, the base 1 is the front shell, and the part to be installed 2 is a lens. By setting a plurality of limiting grooves 11 on the front shell, multiple lenses can be fixed according to user needs to expand the function of the rain sensor and improve the user experience; when the connecting mechanism is applied to an instrument panel, the base 1 is the base, and the part to be installed 2 is the instrument panel. By setting a plurality of limiting grooves 11 on the base, multi-point contact between the instrument panel and the instrument panel base can be achieved, thereby improving the connection strength of the instrument panel.

[0037] Specifically, in the embodiment of the present application, the connection structure is applied to a rain sensor, and a plurality of limiting grooves 11 are arranged in one-to-one correspondence with a plurality of lenses.

[0038] In some possible implementations provided in this application, see Figure 2As shown, a limiting hole 13 is provided at the bottom of the limiting groove 11, and the to-be-installed member 2 can pass through the base 1 through the limiting hole 13. By providing the limiting hole 13 at the bottom of the limiting groove 11, an opening can be formed, so that when the connection structure is applied to the rain sensor, the lens can pass through the front shell through the opening, thereby emitting or receiving light, thereby improving the working stability of the rain sensor.

[0039] The limiting hole 13 may be rhombus, rectangular or circular, etc., which can be matched with the shape of the component to be mounted 2, and the present application does not make any further limitation. In the embodiment of the present application, the component to be mounted 2 is a lens, and the limiting hole 13 is rhombus.

[0040] Specifically, the lens is used to convert the emitted light into parallel light on the one hand, and to convert the emitted light into parallel light on the other hand. It can be understood that when the lens converts the emitted light into parallel light, the emitted light is emitted through the limiting hole 13; when the lens converts the reflected light into parallel light, the reflected light is injected through the limiting hole 13.

[0041] Among them, a plurality of limiting grooves 11 are each provided with a limiting hole 13 , that is, a plurality of limiting holes 13 are also provided.

[0042] In some possible implementations provided in this application, see Figure 1 As shown, the connection structure also includes a fixture 3, which is used to carry the to-be-installed part 2. The fixture 3 is provided with a plurality of installation grooves 31 at positions relative to the plurality of limiting grooves 11, and the bottoms of the plurality of installation grooves 31 are located in the same plane. By arranging the bottoms of the plurality of installation grooves 31 to be located in the same plane, it is possible to ensure that the transmitting end and the receiving end of the rain sensor are located in the same plane, thereby improving the accuracy of the detection result.

[0043] The fixture 3 may be a support platform for the components 2 to be installed, and the fixture 3 is used to ensure that the contact surfaces between the multiple components 2 to be installed and the base 1 are on the same level, thereby ensuring the connection strength.

[0044] Specifically, the shape of the fixture 3 is adapted to the shape of the base 1, that is, the projection of the fixture 3 on the horizontal plane is the same as the projection of the base 1 on the horizontal plane. A mounting groove 31 is provided on the top of the fixture 3, and the mounting groove 31 is adapted to the shape of the component 2 to be mounted, so that at least part of the component 2 to be mounted can be embedded in the mounting groove 31, thereby achieving the purpose of positioning the component to be mounted.

[0045] There are a plurality of mounting grooves 31, and the plurality of mounting grooves 31 are arranged opposite to the plurality of limiting grooves 11. When the base 1 is connected to the components 2 to be mounted, the first ends of the components 2 to be mounted are arranged in the plurality of mounting grooves 31 in a one-to-one correspondence, and the second ends of the components 2 to be mounted are arranged in the plurality of limiting grooves 11 in a one-to-one correspondence.

[0046] Specifically, the bottoms of several installation grooves 31 are located in the same plane, and the bottoms of several limiting grooves 11 are also located in the same plane. On the one hand, the several installation grooves 31 and the several limiting grooves 11 are used to position the installation parts 2 during connection, and on the other hand, they are used to ensure that the horizontality of the installation parts 2 is close to 0.

[0047] In some possible implementations provided in this application, see Figure 1 As shown, the connection structure also includes a welding device, which includes a bottom mold 4, and the fixture 3 is relatively fixed to the bottom mold 4. By setting the bottom mold 4 and fixing the fixture 3 to the bottom mold 4, a stable support can be provided for the part to be installed 2, ensuring that the part to be installed 2 maintains a correct position and posture during the welding process.

[0048] In the embodiment of the present application, the fuse 12 is melted by ultrasonic energization, and the welding equipment is an ultrasonic welding equipment.

[0049] Specifically, the ultrasonic welding device includes a bottom mold 4, on which a fixing groove for accommodating the fixture 3 is provided, and the fixture 3 can be placed in the fixing groove to achieve relative fixation of the fixture 3 and the bottom mold 4. A clearance groove is provided in the middle of the fixing groove, and the depth of the clearance groove is greater than the depth of the fixing groove. The clearance groove runs through the fixing groove and the bottom mold 4, so as to facilitate exhaust when the fixture 3 is placed in the fixing groove, and also facilitate the fixture 3 to be detached from the fixing groove.

[0050] In some possible implementations provided in this application, see Figure 1 As shown, the welding device further includes a welding head 5, which is arranged toward the substrate 1 and the part to be mounted 2, and is used to emit ultrasonic energy. Under the action of the ultrasonic energy, the fuse 12 has a tendency to melt. By arranging the welding head 5 to emit ultrasonic energy to melt the fuse 12, thermal damage to the part to be mounted 2 and the substrate 1 can be avoided, thereby improving the yield rate of the product.

[0051] In the embodiment of the present application, the fuse 12 is an ultrasonic wire.

[0052] The welding equipment is used to convert electrical energy into ultrasonic energy, and emit ultrasonic energy to the substrate 1 and the part to be installed 2 through the welding head 5 .

[0053] Specifically, under the action of ultrasonic energy, the contact surface between the substrate 1 and the part to be installed 2 will vibrate at a high frequency, generating strong friction, so that the fuse 12 between the part to be installed 2 and the substrate 1 will quickly heat up to a molten state. It should be noted that the part to be installed 2 and the substrate 1 can form a firm welding joint through the melting and resolidification of the fuse 12, thereby achieving the expected connection effect.

[0054] In some possible embodiments provided in the present application, the welding head 5 is arranged on the side of the base 1 away from the fixture 3 in a liftable manner, and the welding head 5 is also used to press the base 1 and the part to be installed 2. By setting the welding head 5 to be liftable, the base 1 and the part to be installed 2 can be pressed against the fixture 3 when the welding head 5 moves toward the base 1 and the part to be installed 2, ensuring that the part to be installed 2 and the base 1 can be tightly combined, thereby improving the connection strength of the part to be installed 2; at the same time, the welding head 5 can be lifted and lowered, so that the connection structure can adapt to bases 1 and parts to be installed 2 of different sizes, thereby increasing the scope of application of the connection structure.

[0055] The welding head 5 can be lifted and lowered by pneumatic drive, electric drive, hydraulic drive or mechanical drive.

[0056] Specifically, the welding head 5 is arranged on the side of the substrate 1 away from the to-be-mounted component 2. During the welding process, the welding head 5 descends, first contacts the substrate 1, and then presses the substrate 1 downward so that the fuse 12 on the substrate 1 contacts the lens, and then the welding head 5 continues to descend, pressing the substrate 1 and the to-be-mounted component 2 on the fixture 3.

[0057] In some possible embodiments provided in the present application, the end of the welding head 5 close to the substrate 1 has a welding surface 51, and the shape of the welding surface 51 is the same as the shape of the projection of the substrate 1 on the welding head 5. By providing the welding surface 51 at the end close to the substrate 1, the ultrasonic energy can be better concentrated, thereby improving the welding efficiency and quality.

[0058] The welding surface 51 is a plane, the welding surface 51 is parallel to the base, and the welding head 5 contacts the substrate 1 through the welding surface 51 .

[0059] The shape of the welding surface 51 is adapted to the shape of the substrate 1 , and the area of ​​the welding surface 51 is smaller than the end surface of the welding head 5 , so that the ultrasonic energy can be concentrated.

[0060] In some possible implementations provided in this application, see Figure 3 As shown, the welding surface 51 includes an avoidance area 511 and a release area 512. The avoidance area 511 is the area where the projection of the component 2 to be installed on the welding surface 51 is located, and the release area 512 is the area outside the projection of the component 2 to be installed on the welding surface 51. The release area 512 is used to transmit ultrasonic waves. By setting the avoidance area 511 at a position on the welding surface 51 relative to the component 2 to be installed, ultrasonic energy can be prevented from damaging the component 2 to be installed, thereby improving the yield rate of the product.

[0061] A through hole is provided on the welding surface 51 at a position relative to the component 2 to be mounted, so as to form an avoidance area 511 .

[0062] The area outside the through hole on the welding surface 51 is a release area 512 . The release area 512 is used to contact the base during the welding process to transmit ultrasonic waves to the base and the component to be installed 2 , thereby achieving melting of the fuse 12 .

[0063] Another aspect of an embodiment of the present application provides a rain sensor comprising any one of the above connection structures.

[0064] The working principle of the connection structure provided in the embodiment of the present application is: first, place the part to be installed 2 on the fixture 3, and embed the first end of the part to be installed 2 into the installation groove 31, then place the base 1 on the part to be installed 2, and embed the second end of the part to be installed 2 into the limiting groove 11, then put the fixture 3 into the fixing groove of the bottom mold 4, and then control the welding head 5 to descend so that it presses the base 1 to press the substrate and the part to be installed 2 onto the fixture 3, and finally release ultrasonic waves to the base 1 and the part to be installed 2 through the welding surface 51 to melt the fuse 12, fuse the base 1 and the part to be installed 2 together, and connect and fix them firmly.

[0065] An embodiment of the present application provides a connection structure and a rain sensor, wherein the connection structure is capable of improving the connection strength of the part to be installed 2 by arranging a fusible fuse wire 12 at the bottom of the limiting groove to connect the part to be installed 2, thereby preventing the part to be installed 2 from loosening or falling off; at the same time, compared with gluing fixation, no additional materials are needed, and the glue curing time is saved, thereby improving production efficiency.

[0066] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0067] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application. The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present application, and these improvements and variations should also be regarded as the protection scope of the present application.

Claims

1. A connection structure, characterized in that: The invention comprises a base (1) and a part to be installed (2), wherein a limiting groove (11) is provided on the base (1) at a position relative to the part to be installed (2), at least a portion of the part to be installed (2) is arranged in the limiting groove (11), and a fusible wire (12) is provided at the bottom of the limiting groove (11), and the fusible wire (12) can be melted to connect the part to be installed (2).

2. The connection structure according to claim 1, characterized in that: A limiting hole (13) is provided at the bottom of the limiting groove (11), and the component to be installed (2) can pass through the base (1) through the limiting hole (13).

3. The connection structure according to claim 1, characterized in that: A plurality of the limiting grooves (11) are provided.

4. The connection structure according to claim 3, characterized in that: The connection structure further comprises a fixture (3), the fixture (3) being used to carry the part to be installed (2), the fixture (3) being provided with a plurality of installation grooves (31) at positions relative to the plurality of limiting grooves (11), and the groove bottoms of the plurality of installation grooves (31) being located in the same plane.

5. The connection structure according to claim 4, characterized in that: The connection structure also includes a welding device, which includes a bottom mold (4), and the fixture (3) and the bottom mold (4) are relatively fixed.

6. The connection structure according to claim 5, characterized in that: The welding device further comprises a welding head (5), wherein the welding head (5) is arranged toward the substrate (1) and the part to be mounted (2), and the welding head (5) is used to emit ultrasonic energy. Under the action of the ultrasonic energy, the fuse wire (12) has a tendency to melt.

7. The connection structure according to claim 6, characterized in that: The welding head (5) is arranged on a side of the base (1) away from the fixture (3) in a liftable manner, and the welding head (5) is also used to press the base (1) and the part to be installed (2).

8. The connection structure according to claim 6, characterized in that: The welding head (5) has a welding surface (51) at one end close to the substrate (1), and the shape of the welding surface (51) is the same as the shape of the projection of the substrate (1) on the welding head (5).

9. The connection structure according to claim 8, characterized in that: The welding surface (51) comprises an avoidance area (511) and a release area (512); the avoidance area (511) is the area where the projection of the part to be installed (2) on the welding surface (51) is located; the release area (512) is the area outside the projection of the part to be installed (2) on the welding surface (51); and the release area (512) is used to transmit ultrasonic waves.

10. A rainfall sensor, characterized in that: The invention comprises the connection structure described in any one of claims 1 to 9.

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