CN220670772U - Pressure sensor and electronic equipment - Google Patents

Abstract

The embodiment of the disclosure provides a pressure sensor and electronic equipment, the pressure sensor includes: a housing having a receiving cavity; the pressure sensitive chip is arranged in the accommodating cavity; and the pins are arranged on the periphery of the shell and are connected with the pressure sensitive chip. In this disclosure, set up the pin in the week side of casing, i.e. the pin is arranged along pressure sensor's horizontal direction to the effectual vertical direction's of having reduced pressure sensor structural dimension makes pressure sensor structural dimension more small and exquisite, promotes its range of application.

Description

Pressure sensor and electronic equipment

Technical Field

The embodiment of the disclosure belongs to the technical field of sensors, and particularly relates to a pressure sensor and electronic equipment.

Background

The pressure sensor is an electronic device capable of detecting pressure and can be applied to various pressure detection scenes.

However, the existing pressure sensor structure is not compact enough in appearance, and limits the application range.

Therefore, how to solve the above-mentioned problems is a technical problem to be solved by those skilled in the art.

Disclosure of Invention

Embodiments of the present disclosure aim to solve at least one of the technical problems existing in the prior art, and provide a pressure sensor and an electronic device.

In one aspect of embodiments of the present disclosure, there is provided a pressure sensor including:

a housing having a receiving cavity;

the pressure sensitive chip is arranged in the accommodating cavity;

and the pins are arranged on the periphery of the shell and are connected with the pressure sensitive chip.

Optionally, the shape of the pin is Z-shaped.

Optionally, the shell comprises an air tap and a lower shell which are connected; wherein, the air cock with the junction arc transition of inferior valve.

Optionally, the air tap has an air hole, the air tap includes:

a first barrel section having an air inlet;

a second barrel section, one end of which is connected with the first barrel section;

a third barrel section connected to the other end of the second barrel section;

the cylinder diameter of the first cylinder section is gradually reduced along the axial direction of the air tap and in the direction pointing to the air inlet.

Optionally, the cylinder diameter of the second cylinder section is tapered along the axial direction of the air tap and in the direction pointing to the air inlet.

Optionally, the diameter of the third barrel section is greater than the diameter of the second barrel section.

Optionally, the joint of the second cylinder section and the third cylinder section is in smooth transition.

Optionally, the lower shell comprises a frame and an upper cover which are connected; the frame and the upper cover jointly enclose the accommodating cavity; the air tap is arranged on the upper cover;

wherein, the air cock with upper cover an organic whole is connected.

Further, the method further comprises the following steps:

the lower shell is provided with a back hole, and the back hole is used for ventilating and pressurizing the pressure sensitive chip.

In a second aspect of embodiments of the present disclosure, an electronic device is provided, including the pressure sensor described above.

The beneficial effects of the embodiments of the present disclosure include: in this disclosure, set up the pin in the week side of casing, i.e. the pin is arranged along pressure sensor's horizontal direction to the effectual vertical direction's of having reduced pressure sensor structural dimension makes pressure sensor structural dimension more small and exquisite, promotes its range of application.

Drawings

FIG. 1 is a schematic structural view of a pressure sensor according to an embodiment of the present disclosure, wherein a partial cross-sectional view of the pressure sensor is illustrated;

fig. 2 is a schematic structural diagram of a pressure sensor according to an embodiment of the present disclosure, in which a top view of the pressure sensor is illustrated and a relative position of pins is illustrated.

In the figure, 1, a pressure sensor; 11. a housing; 12. a pressure sensitive chip; 13. pins; 131. a first structural member; 132. a middleware; 133. a second structural member; 14. a connecting wire; 111. an air tap; 112. a lower case; 113. a receiving chamber; 1111. a first barrel section;

1112. a second barrel section; 1113. a third barrel section; 1114. air holes; 1115. an air inlet;

1121. a frame; 1122. an upper cover; 1123. and a back hole.

Detailed Description

In order that those skilled in the art will better understand the technical solutions of the present disclosure, the present disclosure will be described in further detail with reference to the accompanying drawings and detailed description.

In the related art, the pins of the pressure sensor are arranged at the bottom of the shell, so that the vertical height of the sensor is increased, the sensor is larger in size and not small enough, and the application range of the sensor is limited.

In view of the above problems, the present disclosure provides the following technical solutions.

As shown in fig. 1-2, a pressure sensor 1 includes a housing 11, a pressure sensitive die 12, and pins 13; the housing 11 has an accommodation chamber 113; the pressure sensitive chip 12 is arranged in the accommodating cavity 113; the leads 13 are disposed on the peripheral side of the housing 11 and connected to the pressure sensitive chip 12.

In this disclosure, set up pin 13 in the week side of casing 11, i.e. pin 13 arranges along the horizontal direction of pressure sensor 1 to the effectual vertical direction's of pressure sensor 1 structural dimension that has reduced makes pressure sensor 1 structural dimension more small and exquisite, promotes its range of application.

In some embodiments, the pressure sensitive chip 12 includes a MEMS (Micro ElectroMechanical Systems microelectromechanical system) that uses a resistor to create a wheatstone effect and changes the output voltage by being stressed differently.

Further, the pin 13 is an intermediary for communicating the pressure sensitive chip 12 with external signals.

In some embodiments, the shape of the pins 13 is Z-shaped.

In the present disclosure, the pin 13 is set to be Z-shaped, so that the structural size of the pin 13 can be effectively controlled, which is more beneficial to miniaturization of the pressure sensor 1.

Further, the pin 13 includes a first structural member 131, an intermediate member 132, and a second structural member 133. The intermediate member 132 has opposite first and second ends, the first structural member 131 being disposed at the first end of the intermediate member 132, and the second structural member 133 being disposed at the second end of the intermediate member 132; the first structural member 131 is connected with the pressure sensitive chip, and the middle member 132, the first structural member 131 and the second structural member 133 together form a pin 13 in a zigzag shape. The Z-shaped pin 13 can effectively reduce the volume of the pressure sensor 1, and is suitable for a narrower environment and a highly limited environment.

Further, the first structural member 131 is smoothly connected to the first end of the intermediate member 132, and the second structural member 133 is smoothly connected to the second end of the intermediate member 132.

In the present disclosure, the first end of the first structural member 131 and the first end of the intermediate member 132 are in smooth transition connection, and the second end of the second structural member 133 and the second end of the intermediate member 132 are in smooth transition connection, so that the corners of the first structural member 131 and the intermediate member 132, and the corners of the second structural member 133 and the intermediate member 132 are not fragile, and the stress concentration can be reduced, and in addition, the problem of generating cracks can be avoided.

Further, the first structural member 131, the intermediate member 132, and the second structural member 133 are integrally formed.

In the present disclosure, the integral formation of the first structural member 131, the intermediate member 132, and the second structural member 133 can further ensure the structural strength of the pin 13.

Further, the first structural member 131 is disposed in parallel with the second structural member 133.

In some embodiments, pin 13 is connected to pressure sensitive chip 12 by a connection 14; wherein, the material of the connection line 14 includes gold.

In some embodiments, housing 11 includes an associated air cap 111 and lower shell 112; wherein, the joint of the air tap 111 and the lower shell 112 is in arc transition.

In the present disclosure, the arc design at the connection between the air tap 111 and the lower shell 112 facilitates connection of the air pipe and the air tap 111, and in addition, the arc portion can expand the air pipe to increase the pressure between the air pipe and the air tap 111, thereby improving the air tightness.

In some embodiments, air tap 111 has air hole 1114, and air tap 111 includes:

a first barrel section 1111 having an air inlet 1115;

a second barrel section 1112, one end of which is connected to the first barrel section 1111;

a third barrel section 1113 connected to the other end of the second barrel section 1112;

the cylinder diameter of the first cylinder section 1111 is tapered along the axial direction of the air tap 111 and pointing to the air inlet 1115.

In the present disclosure, along the axial direction of the air tap 111 and in the direction pointing to the air inlet 1115, the diameter of the first barrel 1111 is set to be tapered, so that the gradient of the first barrel 1111 is large, and the installation of the air tap 111 and the air tap of the pressure sensor 1 is facilitated.

Further, the air hole 1114 is a channel inside the air tap 111 for ventilating and pressurizing the pressure sensitive chip 12, and the pressure sensitive chip 12 is disposed at a position corresponding to the air hole 1114 in the lower case 112.

In some embodiments, the diameter of the second barrel section 1112 tapers in the axial direction of the air cap 111 and in a direction toward the air inlet 1115.

In the present disclosure, along the axial direction of the air tap 111 and in the direction pointing to the air inlet 1115, the diameter of the second barrel section 1112 is set to be tapered, so that the gradient of the second barrel section 1112 is large, and the installation of the air tap 111 and the air receiving pipe of the pressure sensor 1 is facilitated.

In some embodiments, the first barrel section 1111 has a greater degree of barrel diameter taper than the second barrel section 1112. It will be appreciated that the degree of taper of the bore of the barrel section is expressed as the degree of dimensional change in diameter.

In the present disclosure, the diameter taper degree of the first barrel section 1111 is greater than that of the second barrel section 1112, which is more beneficial to the access of the gas pipe and more convenient for installation.

In some embodiments, the diameter of third barrel section 1113 is greater than the diameter of second barrel section 1112.

In the present disclosure, the diameter of the third cylinder segment 1113 is larger than the diameter of the second cylinder segment 1112, so that the gas receiving tube can be enlarged, so that the gas receiving tube is tightly connected with the gas nozzle 111, and the connection reliability is ensured.

In some embodiments, the junction of the second barrel section 1112 and the third barrel section 1113 is rounded.

In the present disclosure, the joint of the second cylinder section 1112 and the third cylinder section 1113 is smoothly transited, so that when the gas pipe is installed to the third cylinder section 1113 along the second cylinder section 1112, the gas pipe can be smoothly connected to the third cylinder section 1113, and smooth installation of the gas pipe is ensured.

In some embodiments, the lower shell 112 includes a frame 1121 and an upper cover 1122 connected; the frame 1121 and the upper cover 1122 together enclose the accommodation chamber 113; the air tap 111 is arranged on the upper cover 1122;

wherein, air tap 111 is connected with upper cover 1122 an organic whole.

In the present disclosure, the air tap 111 is integrally connected with the upper cover 1122, so that the structural strength of the pressure sensor 1 can be effectively improved, and the reliability of the operation of the pressure sensor can be ensured.

In some embodiments, the pressure sensor 1 further includes a back aperture 1123.

A back hole 1123 is provided in the lower case 112, and the back hole 1123 is used for pressurizing and ventilating the pressure sensitive chip 12. The back hole 1123 is for circumscribing the atmosphere.

Further, the back hole 1123 is disposed at a position corresponding to the air hole 1114 of the air tap 111.

In some embodiments, the fabrication of the pressure sensor 1 includes: the frame 1121 and upper cover 1122 are pre-processed to be burr-free, the MEMS chip is glued into the lower case 112, and baked to cure. Further, the MEMS chip is connected to the inner leads 13 of the frame 1121 by gold wires, and glue is applied at predetermined positions. Further, the air tap 111 is connected with the upper cover 1122 of the lower case 112, and epoxy glue is coated at the connection for sealing the product, and baked and cured.

In a second aspect of the embodiments of the present disclosure, an electronic device is provided, comprising the pressure sensor 1 described above.

It is to be understood that the above embodiments are merely exemplary embodiments employed to illustrate the principles of the present disclosure, however, the present disclosure is not limited thereto. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the disclosure, and are also considered to be within the scope of the disclosure.

Claims (10)

1. A pressure sensor, comprising:

a housing (11) having a receiving chamber (113);

a pressure sensitive chip (12) disposed in the receiving chamber (113);

and the pins (13) are arranged on the periphery side of the shell (11) and are connected with the pressure sensitive chip (12).

2. The pressure sensor of claim 1, wherein the pressure sensor is configured to,

the shape of the pin (13) is Z-shaped.

3. The pressure sensor of claim 1, wherein the pressure sensor is configured to,

the shell (11) comprises an air tap (111) and a lower shell (112) which are connected; wherein the joint of the air tap (111) and the lower shell (112) is in arc transition.

4. A pressure sensor according to claim 3, wherein the air tap (111) has an air hole (1114), the air tap (111) comprising:

a first barrel section (1111) having an air inlet (1115);

a second barrel section (1112) connected at one end to the first barrel section (1111);

a third barrel section (1113) connected to the other end of the second barrel section (1112);

wherein, along the axial direction of the air tap (111) and in the direction of the air inlet (1115), the cylinder diameter of the first cylinder section (1111) is gradually reduced.

5. The pressure sensor of claim 4, wherein the pressure sensor is configured to,

the diameter of the second cylinder section (1112) is tapered along the axial direction of the air tap (111) and in the direction of the air inlet (1115).

6. The pressure sensor of claim 4, wherein the pressure sensor is configured to,

the diameter of the third barrel section (1113) is greater than the diameter of the second barrel section (1112).

7. The pressure sensor of claim 4, wherein the pressure sensor is configured to,

the joint of the second cylinder section (1112) and the third cylinder section (1113) is in smooth transition.

8. The pressure sensor of claim 4, wherein the pressure sensor is configured to,

the lower shell (112) comprises a frame (1121) and an upper cover (1122) which are connected; the frame (1121) and the upper cover (1122) jointly enclose the accommodating cavity (113); the air tap (111) is arranged on the upper cover (1122);

wherein, the air tap (111) is integrally connected with the upper cover (1122).

9. The pressure sensor of claim 4, further comprising:

the lower shell (112) is provided with a back hole (1123), and the back hole (1123) is used for ventilating and pressurizing the pressure sensitive chip (12).

10. An electronic device, characterized in that it comprises a pressure sensor (1) according to any one of claims 1-9.