Sensor convenient to weld

Abstract

The utility model relates to the technical field of sensors, and particularly discloses a sensor convenient to weld, which comprises a shell, a sensitive element, a chip and a terminal, the shell is provided with a mounting cavity for mounting the sensitive element and the chip, and the sensitive element, the chip and the terminal are electrically connected; the shell is provided with a mounting port corresponding to the part where the pin of the chip is connected with the terminal; a welding plate is fixed at one end, close to a pin of the chip, of the terminal, the pin abuts against the welding plate, and the area of the welding plate is larger than that of the pin; during welding, the two welding heads extend into the welding plate from the mounting openings and abut against the same side of the pins and the same side of the welding plate respectively for welding. Welding connection of the terminal and the pin of the chip can be achieved in the same direction, operation is convenient, and good practicability is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of sensors, and in particular to a sensor that is easy to weld. Background Art

[0002] A sensor is a technical component that detects and responds to certain types of input from devices in the external environment and converts the detected input information into a usable electrical signal or other desired form of output. It is widely used in many fields such as industrial automation, smart home, medical equipment, and environmental monitoring.

[0003] The sensor includes a sensitive element 01, a terminal 02, and a chip 03, among which the components need to be soldered through pins 04 for signal transmission. Figure 1 As shown, when pin 04 and terminal 02 are welded, the welding parts of pin 04 and terminal 02 need to be fitted together, and then the two welding heads 05 of the welding equipment act together from two opposite directions to press terminal 02 and pin 04 together for welding.

[0004] In actual production, it is found that in order to ensure the sealing and structural strength of the sensor, the terminals are directly injection-molded inside the shell during the processing. At this time, the terminals and pins cannot be welded and fixed in the above-mentioned way. Utility Model Content

[0005] In order to solve the above problems, the present application provides a sensor that is easy to weld and can achieve welding connection of terminals and pins in the same direction.

[0006] This application provides a sensor that is easy to weld, which adopts the following technical solution:

[0007] A sensor that is easy to weld, comprising a housing, a sensitive element, a chip and terminals. The housing is provided with a mounting cavity for mounting the sensitive element and the chip, and the sensitive element, the chip and the terminals are electrically connected. The housing is provided with a mounting opening corresponding to the connection between the pins of the chip and the terminals. A welding plate is fixed to one end of the terminal close to the pins of the chip, and the pins abut against the welding plate, and the area of the welding plate is larger than that of the pins. During welding, two welding heads extend from the mounting opening, and the two welding heads respectively abut against the same side of the pins and the welding plate for welding.

[0008] By adopting the above technical solution, during the process of welding the chip and the terminal, the two welding heads of the welding equipment are extended from the mounting port into the mounting cavity, one welding head abuts against the pin of the chip, and the other welding head abuts against the welding plate, so that the welding connection between the terminal and the pin of the chip can be achieved in the same direction.

[0009] Optionally, the pins are located on one side of the welding plate.

[0010] By adopting the above technical solution, the pin is located on one side of the welding plate, and during the welding process, the two welding heads respectively abut against the pin and the welding plate, which facilitates operation.

[0011] Optionally, the installation opening is filled with sealant.

[0012] By adopting the above technical solution, the installation opening is filled with sealant to seal the installation opening, thereby protecting the terminals, chips and sensitive components and extending the service life of the sensor.

[0013] Optionally, friction lines are provided on the side walls of the mounting opening.

[0014] By adopting the above technical solution, friction patterns are provided on the side wall of the installation port, which helps to improve the adhesion performance of the sealant, achieve a better sealing effect, and extend the service life of the sensor.

[0015] Optionally, elastic clips are respectively provided on both sides of the shell, and the elastic clips are provided with clipping holes for clipping with the device.

[0016] By adopting the above technical solution, the device is connected to the elastic snap buckle, which facilitates the connection and disassembly of the device and the sensor and is easy to use.

[0017] Optionally, a sealing groove is formed on the outer peripheral wall of the shell, the sealing groove is located at an end of the shell away from the terminal, and a sealing ring is embedded in the sealing groove.

[0018] By adopting the above technical solution, the sealing ring can effectively increase the sealing of the connection between the sensor and the equipment, thereby ensuring the accuracy and stability of the measurement results.

[0019] Optionally, a plug is provided at one end of the shell close to the terminal, and a snap buckle is provided on the outer wall of the plug.

[0020] By adopting the above technical solution, the snap-on buckle further improves the stability of the connection between the sensor and the device.

[0021] Optionally, the inner wall of the plug is provided with positioning ridges.

[0022] By adopting the above technical solution, the positioning ridges are used to identify the direction of the plug insertion, thereby preventing the problem of incorrect connection direction with the device.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. During the soldering process of the chip and the terminal, extend the two soldering heads of the soldering equipment from the mounting port into the mounting cavity, and place the two soldering heads against the same side of the pin and the soldering plate respectively, so that the soldering connection of the terminal and the chip pin can be achieved in the same direction.

[0025] 2. By setting friction grooves on the side wall of the installation port and filling the installation port with sealant, it helps to improve the adhesion performance of the sealant, achieve a better sealing effect, and extend the service life of the sensor.

[0026] 3. Positioning ridges are set on the inner wall of the plug to identify the direction of the plug insertion and prevent the problem of incorrect connection direction to the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a welding schematic diagram involved in the background technology of this application;

[0028] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0029] Figure 3 is a cross-sectional view of an embodiment of the present application;

[0030] Figure 4 It is a front view of an embodiment of the present application.

[0031] Figure markings: 01, sensitive element; 02, terminal; 03, chip; 04, pin; 05, welding head; 1, welding head; 2, terminal; 21, welding plate; 3, housing; 31, plug; 32, mounting port; 33, friction pattern; 34, elastic snap; 35, snap hole; 36, snap buckle; 37, positioning ridge; 4, sensitive element; 5, chip; 51, pin; 6, sealing ring; 7, sealing groove. DETAILED DESCRIPTION

[0032] The following is combined with Figure 2-4 This application is described in further detail.

[0033] The embodiment of the present application discloses a sensor that is easy to weld. Figure 2 and Figure 3 The device comprises a housing 3, a sensitive element 4, a chip 5, and a terminal 2. The housing 3 has a cavity for mounting the sensitive element 4 and chip 5. The sensitive element 4 and chip 5 are electrically connected to the terminal 2. A plug 31 is provided at one end of the housing 3 near the terminal 2. During use, the sensitive element 4 detects the input signal of the device, which is converted by the chip 5 and then output from the plug 31 through the terminal 2.

[0034] The housing 3 has a mounting opening 32 corresponding to the connection between the terminal 2 and the pin 51 of the chip 5. A soldering plate 21 is soldered to the end of the terminal 2 closest to the pin 51 of the chip 5. The pin 51 abuts against the soldering plate 21, and the area of the soldering plate 21 is larger than that of the pin 51. In this embodiment, there are three terminals 2, and each pin 51 is located on the same side of the corresponding soldering plate 21 for easy operation.

[0035] During the welding process of the pins 51 of the chip 5 and the welding plate 21, the two welding heads 1 of the welding equipment extend into the mounting cavity from the mounting port 32, and the two welding heads 1 respectively abut against the same side of the pins 51 and the welding plate 21, thereby realizing the welding connection of the terminal 2 and the pins 51 in the same direction.

[0036] After soldering terminal 2 to pin 51, sealant is applied to the mounting opening 32 to seal it. Furthermore, friction grooves 33 are provided on the sidewalls of the mounting opening 32. These grooves help improve the sealant's adhesion, achieving a better seal and effectively extending the sensor's service life. In this embodiment, the sealant can be epoxy, silicone, or hot-melt adhesive.

[0037] Elastic clips 34 are provided on both sides of the shell 3. A snap-fit hole 35 is provided at one end of the elastic clip 34 away from the terminal 2. The snap-fit hole 35 is used to snap-fit the device to the shell 3 for fixing the device to the shell 3 for easy use.

[0038] In order to improve the sealing of the connection between the sensor and the device, an annular sealing groove 7 is opened on the outer wall of the shell 3. The sealing groove 7 is located at the end of the shell 3 away from the terminal 2. A sealing ring 6 is embedded in the sealing groove 7 to ensure the accuracy and stability of the sensor data.

[0039] Reference Figure 2 and Figure 4 Plug 31 has snap-on buckles 36 on opposite sides of its outer wall. These buckles are used to connect to the device, improving the stability of the sensor connection. Plug 31 also has positioning ridges 37 on its inner wall. These ridges are used to identify the correct insertion direction of plug 31, preventing problems with incorrectly connected devices.

[0040] The implementation principle of a sensor that is easy to weld disclosed in an embodiment of the present application is as follows: a welding plate 21 is welded to one end of the terminal 2 close to the pin 51 of the chip 5, and the area of the welding plate 21 is larger than the area of the pin 51; when the chip 5 is welded to the terminal 2, the two welding heads 1 of the welding equipment are extended into the mounting cavity from the mounting port 32, and the two welding heads 1 are respectively abutted against the same side of the pin 51 and the welding plate 21, so that the welding connection between the terminal 2 and the pin 51 of the chip 5 can be achieved from the same direction.

[0041] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A sensor that is easy to weld, characterized in that: The invention comprises a housing (3), a sensitive element (4), a chip (5) and a terminal (2); the housing (3) is provided with a mounting cavity for mounting the sensitive element (4) and the chip (5); the sensitive element (4), the chip (5) and the terminal (2) are electrically connected; a mounting opening (32) is provided on the housing (3) at a location corresponding to the connection between the pin (51) of the chip (5) and the terminal (2); a welding plate (21) is fixed to one end of the terminal (2) close to the pin (51) of the chip (5), the pin (51) abuts against the welding plate (21), and the area of the welding plate (21) is larger than that of the pin (51); during welding, two welding heads (1) extend from the mounting opening (32), and the two welding heads (1) respectively abut against the same side of the pin (51) and the welding plate (21) for welding.

2. A sensor that is easy to weld according to claim 1, characterized in that: The pin (51) is located on one side of the welding plate (21).

3. A sensor that is easy to weld according to claim 1, characterized in that: The installation opening (32) is filled with sealant.

4. A sensor that is easy to weld according to claim 3, characterized in that: Friction lines (33) are provided on the side walls of the installation opening (32).

5. The sensor that is easy to weld according to claim 1, characterized in that: Elastic buckles (34) are respectively provided on both sides of the housing (3), and the elastic buckles (34) are provided with engaging holes (35) for engaging with equipment.

6. A sensor that is easy to weld according to claim 1, characterized in that: A sealing groove (7) is provided on the outer peripheral wall of the housing (3), the sealing groove (7) being located at an end of the housing (3) away from the terminal (2), and a sealing ring (6) is embedded in the sealing groove (7).

7. A sensor that is easy to weld according to claim 1, characterized in that: A plug (31) is provided at one end of the housing (3) close to the terminal (2), and a snap-fit buckle (36) is provided on the outer wall of the plug (31).

8. A sensor that is easy to weld according to claim 7, characterized in that: The inner wall of the plug (31) is provided with positioning ridges (37).

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