CN216448947U

CN216448947U - Reed pipe sensor

Info

Publication number: CN216448947U
Application number: CN202123450316.5U
Authority: CN
Inventors: 杜玉良; 严子光; 黄哲伦; 夏长春
Original assignee: Shenzhen Sunwave Electronics Co ltd
Current assignee: Shenzhen Sunwave Electronics Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-05-06
Anticipated expiration: 2031-12-31

Abstract

The application relates to a reed switch sensor, which comprises a reed switch, a resistor and a plug, wherein the plug is used for being in plug-in fit with external equipment; the connecting piece is used for fixing the reed pipe and the resistor, and one end of the connecting piece is fixedly arranged in the plug; the protective shell is used for protecting the connecting sheet, is sleeved on the connecting sheet and is arranged on the plug; a shock absorbing member for filling the protective case. This application has stable in structure's effect.

Description

Reed pipe sensor

Technical Field

The application relates to the field of sensor structural design, in particular to a reed switch sensor.

Background

When the existing reed pipe type sensor is applied to a waterproof, dustproof and oil-stain-proof environment, a sealing ring is generally used for assembly and sealing, epoxy resin packaging or ultrasonic welding sealing.

When ultrasonic welding is used for sealing, vibration can be transmitted to the reed pipe and the resistor inside the reed pipe sensor, and the reed pipe and the resistor are damaged or even separated.

The above-mentioned related art has a drawback of structural instability.

SUMMERY OF THE UTILITY MODEL

In order to improve the unstable problem of structure, this application provides a tongue tube sensor.

The application provides a tongue tube sensor adopts following technical scheme:

a reed switch sensor comprises a reed switch, a resistor and a sensor,

the plug is used for being matched with external equipment in an inserting mode;

the connecting piece is used for fixing the reed pipe and the resistor, and one end of the connecting piece is fixedly arranged in the plug;

the protective shell is used for protecting the connecting sheet, the protective shell is sleeved on the connecting sheet, and the protective shell is arranged on the plug;

a shock absorbing member for filling the protective case.

Through adopting above-mentioned technical scheme, pack the shock attenuation piece in the protective housing, when ultrasonic bonding, slowed down the damage of outside mechanical shock to tongue tube and resistance, made the tongue tube more firm with the resistance is fixed, improved the production yield.

Optionally, the shock absorbing member is silica gel.

By adopting the technical scheme, the silica gel is injected into the protective shell, so that the vibration damage to the reed switch and the resistor in the protective shell during welding is reduced; silica gel is more suitable for high temperature or microthermal operational environment, makes tongue-and-tube sensor leakproofness better, is difficult for producing the seepage phenomenon.

Optionally, one end of the plug, which is far away from the socket, is provided with a limiting block which is matched with the protective shell in an embedded manner.

Through adopting above-mentioned technical scheme, the setting of stopper makes the plug embedding protective housing in, realizes the installation of protective housing and plug.

Optionally, the inner wall of the protective housing at the opening is provided with a butting block, and the limiting block is provided with a limiting groove matched with the butting block in a butting manner.

Through adopting above-mentioned technical scheme, butt piece butt in the spacing groove guarantees can pinpoint before the welding, has further improved the structural stability of tongue tube sensor.

Optionally, a positioning block is arranged on the limiting block, and a positioning groove matched with the positioning block in an embedded mode is formed in the inner wall of the protective shell.

Through adopting above-mentioned technical scheme, along with in the stopper embedding protective housing, the locating piece also imbeds the constant head tank, ensures to fix a position accurately, makes the protective housing connect in the plug more steadily, makes protective housing and plug be difficult for receiving the vibration influence, has further improved the structural stability of tongue tube sensor.

Optionally, one side of the positioning block, which deviates from the plug, is provided with a guide surface.

Through adopting above-mentioned technical scheme, the setting of spigot surface is convenient for during the locating piece embedding constant head tank, has improved the installation effectiveness.

Optionally, one side of the abutting block facing the plug is provided with an ultrasonic welding rib.

Through adopting above-mentioned technical scheme, set up the ultrasonic bonding muscle at the butt joint piece, when ultrasonic bonding is sealed, reduce the shearing force that the ultrasonic bonding muscle received, improved the anti destructibility of ultrasonic bonding muscle.

Optionally, the connecting piece includes a first connecting piece and a second connecting piece, the first connecting piece includes a first connecting portion and a first fixing portion, the second connecting piece includes a second connecting portion and a second fixing portion, and the first fixing portion and the second fixing portion are both fixed in the plug; the lead wires of the reed switch are respectively fixed to the first connecting portion and the second connecting portion, the lead wires of the resistor are respectively fixed to the first connecting portion and the second connecting fixing portion, and the length direction of the reed switch is parallel to the length direction of the resistor.

Through adopting above-mentioned technical scheme, first connection piece and the cooperation of second connection piece realize the installation of tongue tube and resistance.

Optionally, a positioning strip is arranged on the outer wall of the protective shell.

Through adopting above-mentioned technical scheme, the setting of location strip, at plug embedding protective housing in-process, the position of observing the location strip is judged the installation direction and is whether correct, has improved production efficiency.

In summary, the present application includes at least one of the following beneficial technical effects:

by filling the shock-absorbing part in the protective shell, when ultrasonic welding is carried out, the damage of external mechanical impact to the reed pipe and the resistor is relieved, the reed pipe and the resistor are fixed more firmly, and the production yield and the structural stability of the reed pipe sensor are improved;

by arranging the positioning block and the positioning groove, accurate positioning can be ensured, the protective shell is more stably connected to the plug, the protective shell and the plug are not easily affected by vibration, and the structural stability of the reed switch sensor is further improved;

through setting up the ultrasonic bonding muscle at the butt joint piece, when ultrasonic bonding is sealed, reduce the shearing force that the ultrasonic bonding muscle received, improved the ultrasonic bonding muscle ability of anti-damage.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic structural diagram of a plug according to an embodiment of the present application;

FIG. 4 is a cross-sectional view of a protective case of an embodiment of the present application;

fig. 5 is an enlarged view of a portion a in fig. 2.

Description of reference numerals: 1. a reed switch; 2. a plug; 21. a limiting block; 211. a limiting groove; 22. positioning blocks; 221. a guide surface; 3. a first connecting piece; 31. a first connection portion; 32. a first fixed part; 4. a second connecting sheet; 41. a second connecting portion; 42. a second fixed part; 5. a protective shell; 51. a butting block; 52. positioning a groove; 53. a positioning bar; 6. silica gel; 7. ultrasonically welding the ribs; 8. a limiting bump; 9. and (4) resistance.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

In the description of the present invention, it is to be understood that the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.

The embodiment of the application discloses a reed switch sensor.

Referring to fig. 1 and 2, the reed switch sensor includes a reed switch 1, a resistor 9, a plug 2, a connection piece, a protective case 5, and a shock absorbing member. The reed pipe 1 and the resistor 9 are fixed on the connecting piece, one end of the connecting piece is fixed in the plug 2, the protective shell 5 is sleeved on the connecting piece, the protective shell 5 is arranged on the plug 2, and the plug 2 is used for being matched with external equipment in an inserting mode; the shock absorbing members are filled in the protective case 5. Specifically, in this application embodiment, one side of plug 2 is located to the protective housing 5 cover, and the connection piece that is fixed with tongue tube 1 and resistance 9 is placed in protective housing 5, fills the buffer member in protective housing 5, and when ultrasonic bonding, the buffer member slows down the damage of outside mechanical shock to tongue tube 1 and resistance 9, makes tongue tube 1 and resistance 9 fixed more firm, makes the difficult influence that receives ultrasonic wave of tongue tube 1 glass shell and damages, has improved the production yield.

The shock absorbing member is silica gel 6. Silica gel 6 is injected into the protective shell 5, so that vibration damage to the reed switch 1 and the resistor 9 in the protective shell 5 during welding is reduced; the silica gel 6 is more suitable for a high-temperature or low-temperature working environment, so that the reed switch sensor is better in sealing performance and is not easy to leak. Accordingly, the damper is not limited to silicone rubber, but may be an elastic body having a damping effect such as rubber.

Referring to fig. 2, the connection piece includes a first connection piece 3 and a second connection piece 4, the first connection piece 3 includes a first connection portion 31 and a first fixing portion 32, the second connection piece 4 includes a second connection portion 41 and a second fixing portion 42, and the first fixing portion 32 and the second fixing portion 42 are both fixed in the plug 2; the lead wires of the reed pipe 1 are respectively fixed to the first connecting portion 31 and the second connecting portion 41, the lead wires of the resistor 9 are respectively fixed to the first connecting portion 31 and the second connecting portion, and the length direction of the reed pipe 1 is parallel to the length direction of the resistor 9. Specifically, in the embodiment of the present application, the plug 2 is integrally formed by injection molding, and in the injection molding process of the plug 2, the first fixing portion 32 and the second fixing portion 42 are fixed in the injection mold in advance, so that the first fixing portion 32 and the second fixing portion 42 are directly fixed in the plug 2. The length of the first connecting piece 3 is greater than that of the second connecting piece 4, one side of the first connecting part 31, which is far away from the first fixing part 32, is bent at a right angle towards the direction of the second connecting piece 4 to form a bent end, the lead wires of the reed pipe 1 are respectively fixed at the bent end and the second connecting part 41, the lead wires of the resistor 9 are respectively fixed at the bent end and the second connecting fixing part, and the length direction of the reed pipe 1 is parallel to the length direction of the resistor 9.

First fixed part 32 and second fixed part 42 all are equipped with spacing lug 8, and spacing lug 8 is located the both sides of first fixed part 32 respectively, and spacing lug 8 still is equipped with the inclined plane, and the inclined plane is kept away from first fixed part 32 slope gradually towards first connecting portion 31 direction from first fixed part 32, prevents that the connection piece from breaking away from plug 2, has improved the structural stability of tongue tube sensor.

Referring to fig. 2 and 3, a limiting block 21 which is in embedded fit with the protective shell 5 is arranged at one end of the plug 2 away from the socket. The limiting block 21 is embedded into the protective shell 5, the edge of the plug 2 abuts against the opening of the protective shell 5, and the protective shell 5 and the plug 2 are installed.

Referring to fig. 3 and 4, the inner wall of the protective shell 5 at the opening is provided with a butting block 51, and a limiting groove 211 matched with the butting block 51 in a butting manner is formed in the limiting block 21. Specifically, set up butt block 51 at the opening part of protective housing 5, make the opening part of protective housing 5 form the stair structure, the diapire butt of spacing groove 211 in this stair structure, guarantee can pinpoint before the welding, further improved the structural stability of tongue tube sensor.

Referring to fig. 4 and 5, the abutment block 51 is provided with an ultrasonic welding rib 7 on a side thereof facing the plug 2. The ultrasonic welding rib adopts the triangle rib, sets up ultrasonic welding rib 7 at butt piece 51, when ultrasonic welding is sealed, reduces the shearing force that ultrasonic welding rib 7 received, has improved ultrasonic welding rib 7 resistance to destruction ability.

Referring to fig. 3 and 4, the limiting block 21 is provided with a positioning block 22, and the inner wall of the protective shell 5 is provided with a positioning groove 52 which is in embedded fit with the positioning block 22. Specifically, the locating piece 22 is located the diapire of spacing groove 211, and when installing plug 2 in protective housing 5, when embedding stopper 21, locating piece 22 also imbeds in the constant head tank 52, makes protective housing 5 connect in plug 2 more steadily, makes protective housing 5 and plug 2 be difficult for receiving the vibration influence, has further improved the structural stability of tongue tube sensor.

The positioning block 22 is provided with a guide surface 221 on the side facing away from the plug 2. The arrangement of the guide surface 221 facilitates the embedding of the positioning block 22 into the positioning groove 52, and improves the production efficiency.

Referring to fig. 1 and 3, the outer wall of the protective case 5 is provided with a positioning bar 53. Specifically, the positioning bar 53 and the positioning block 22 are located on the same side wall of the protective shell 5, and the length direction of the positioning bar 53 is parallel to the length direction of the protective shell 5. In the process of inserting the plug 2 into the protective shell 5, the position of the positioning strip 53 is observed, the positioning block 22 on the plug 2 and the positioning strip 53 can be inserted into the protective shell 5 at the same side, and the production efficiency is improved.

The implementation principle of the reed switch sensor in the embodiment of the application is as follows: the inner wall of the opening of the protective shell 5 is provided with a butting block 51, and the limiting block 21 is provided with a limiting groove 211 matched with the butting block 51 in a butting way, so that the accurate positioning of the plug 2 and the protective shell 5 before ultrasonic welding is ensured; the ultrasonic welding ribs 7 are arranged on the abutting blocks 51, so that shearing force applied to the ultrasonic welding wires is reduced, and the anti-damage capability of the ultrasonic welding wires is improved; silica gel 6 is injected into the protective shell 5, so that the damage of external mechanical impact and high and low temperature to the reed pipe 1 and the resistor 9 during welding is relieved, and the production yield is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A reed switch sensor comprises a reed switch (1) and a resistor (9), and is characterized in that: the plug (2) is used for being matched with external equipment in an inserting mode;

the connecting piece is used for fixing the reed pipe (1) and the resistor (9), and one end of the connecting piece is fixedly arranged in the plug (2);

the protective shell (5) is used for protecting the connecting sheet, the protective shell (5) is sleeved on the connecting sheet, and the protective shell (5) is arranged on the plug (2);

a shock absorber for filling the protective shell (5).

2. The reed switch sensor of claim 1, wherein: the shock-absorbing member is silica gel (6).

3. The reed switch sensor of claim 1, wherein: one end of the plug (2) far away from the socket is provided with a limiting block (21) which is matched with the protective shell (5) in an embedded mode.

4. The reed switch sensor of claim 3, wherein: the inner wall of protective housing (5) at the opening part is equipped with butt joint piece (51), seted up on stopper (21) with butt joint piece (51) butt complex spacing groove (211).

5. The reed switch sensor of claim 4, wherein: the limiting block (21) is provided with a positioning block (22), and the inner wall of the protective shell (5) is provided with a positioning groove (52) which is embedded and matched with the positioning block (22).

6. The reed switch sensor of claim 5, wherein: one side of the positioning block (22) departing from the plug (2) is provided with a guide surface (221).

7. The reed switch sensor of claim 4, wherein: and an ultrasonic welding rib (7) is arranged on one side, facing the plug (2), of the abutting block (51).

8. The reed switch sensor of claim 1, wherein: the connecting piece comprises a first connecting piece (3) and a second connecting piece (4), the first connecting piece (3) comprises a first connecting part (31) and a first fixing part (32), the second connecting piece (4) comprises a second connecting part (41) and a second fixing part (42), and the first fixing part (32) and the second fixing part (42) are fixed in the plug (2); the lead wires of the reed pipe (1) are fixed to the first connecting portion (31) and the second connecting portion (41) respectively, the lead wires of the resistor (9) are fixed to the first connecting portion (31) and the second connecting and fixing portion respectively, and the length direction of the reed pipe (1) is parallel to the length direction of the resistor (9).

9. The reed switch sensor of claim 4, wherein: and a positioning strip (53) is arranged on the outer wall of the protective shell (5).