Glass packaging sealing base
By designing a glass-encapsulated sealed base, the accuracy of the alignment of the base housing and mold hole position in the diffusion silicon pressure sensor in a high-temperature environment is solved, and the stability and sealing of the base are achieved, and the use of the high-temperature environment is adapted.
Patent Information
- Application Number
- CN202422141687.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-09-02
AI Technical Summary
In high temperature environments, the existing diffusion silicon pressure sensor has high alignment accuracy between the base housing and the mold hole position, which is prone to deviation, affecting the product's voltage resistance.
A glass-encapsulated sealing base is designed, including a base body, a sealing groove, a sealing plate, a lead wire, an oil injection hole and a fastening bolt. Through a symmetrically arranged L-shaped mounting plate and a sealing groove groove, the sealing inside the base is ensured, and the flow of the oil body is realized through the oil injection hole and the groove.
Improves the stability of the base, reduces the offset between the holes and leads, ensures sealing, and adapts to high-temperature environments.
Smart Images

Figure CN223217015U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sensor sealing bases, in particular to a glass packaging sealing base. Background Art
[0002] The base housing is a critical component in the structure of a diffused silicon pressure sensor. Sensor manufacturers coat the back of the chip with epoxy resin and bond it to the inner surface of the housing. After high-temperature baking, the epoxy resin solidifies. After curing, gold and aluminum wires are bonded to the lead ends. After the sensor is packaged, it undergoes high-temperature testing or is used in a high-temperature environment.
[0003] In the prior art, it is necessary to ensure that the holes between the shell and the mold are completely aligned to avoid offset. The processing accuracy is relatively high. If the holes are not aligned, the voltage resistance performance of the product may be reduced. Therefore, the present invention proposes a glass packaging sealing base to solve the above problem. Utility Model Content
[0004] The purpose of the present invention is to provide a glass packaging sealing base to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a glass-packaged sealed base, comprising a base body, a first sealing groove, a second sealing groove, a first sealing plate, a second sealing plate, a lead, an oil filling hole, a mounting plate and a fastening bolt, wherein a first sealing plate is provided on one side of the base body, a first sealing groove is provided at a position on the base body corresponding to the first sealing plate, a plurality of leads are provided in the first sealing groove, and a glass insulator is provided at the connection between the plurality of leads and the base body, an oil filling hole is provided at a position in the base body near the first sealing groove, and the size of the oil filling hole is adapted to the size of the lead.
[0006] Preferably, two mounting plates are provided on the lower side of the base body, the two mounting plates are symmetrically arranged relative to the leads, and both mounting plates are L-shaped.
[0007] Preferably, a second sealing plate is provided on the base body near the mounting plate.
[0008] Preferably, a second sealing groove is provided on the base body at a position corresponding to the second sealing plate, and the size of the second sealing groove is adapted to the size of the second sealing plate.
[0009] Preferably, both mounting plates are provided with fastening bolts, and one end of the two fastening bolts abuts against the second sealing plate.
[0010] Preferably, an oil filling groove is provided on the upper side of the base body near the oil filling hole, and the oil filling groove is a rectangular groove.
[0011] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a simple structure, reduces the offset of the hole and the lead, greatly improves the stability of the sealing plate, ensures that the oil body can enter the pressure sensor through the oil filling hole and the oil filling groove, and ensures that the second sealing plate can be tightly installed with the base body through the tightening bolts and the mounting plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the longitudinal cross-sectional structure of the utility model;
[0013] Figure 2 This is a schematic diagram of the transverse cross-sectional structure of the utility model;
[0014] Figure 3 This is a schematic structural diagram of the new first sealing groove used in this invention.
[0015] In the figure: 1. base body; 2. first sealing groove; 3. second sealing groove; 4. first sealing plate; 5. second sealing plate; 6. lead wire; 7. oil filling hole; 8. mounting plate; 9. fastening bolt; 10. oil filling groove. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0017] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.
[0018] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0019] See also Figure 1-3 The utility model provides a technical solution: a glass package sealing base, comprising a base body 1, a first sealing groove 2, a second sealing groove 3, a first sealing plate 4, a second sealing plate 5, a lead 6, an oil filling hole 7, a mounting plate 8 and a fastening bolt 9. A first sealing plate 4 is provided on one side of the base body 1, and a first sealing groove 2 is provided at a position corresponding to the first sealing plate 4 on the base body 1. A plurality of leads 6 are provided in the first sealing groove 2, and a glass insulator is provided at the connection between the plurality of leads 6 and the base body 1. An oil filling hole 7 is provided in the base body 1 near the first sealing groove 2, and the size of the oil filling hole 7 is adapted to the size of the lead 6.
[0020] In this embodiment, two mounting plates 8 are provided on the lower side of the base body 1 . The two mounting plates 8 are symmetrically arranged relative to the leads 6 , and both mounting plates 8 are L-shaped.
[0021] In this embodiment, a second sealing plate 5 is provided on the base body 1 near the mounting plate 8 .
[0022] In this embodiment, a second sealing groove 3 is provided on the base body 1 at a position corresponding to the second sealing plate 5 , and the size of the second sealing groove 3 is adapted to the size of the second sealing plate 5 .
[0023] In this embodiment, fastening bolts 9 are provided on the two mounting plates 8 , and one end of the two fastening bolts 9 abuts against the second sealing plate 5 .
[0024] In this embodiment, an oil filling groove 10 is provided on the upper side of the base body 1 near the oil filling hole 7 , and the oil filling groove 10 is a rectangular groove.
[0025] Working principle: Install the device and the sensor, and then tightly install the second sealing plate 5 and the second sealing groove 3 on the base body 1 by tightening the bolts 9, and then match the first sealing plate 4 with the first sealing groove 2 to ensure that the oil filling space in the base body 1 is sealed, and then fill the oil through the oil filling hole 7 and guide the oil through the oil filling groove 10 to accelerate the flow of the oil.
[0026] It is worth noting that the entire device is controlled by a master control button. Since the devices matched with the control button are commonly used devices and belong to existing mature technologies, their electrical connection relationships and specific circuit structures will not be described in detail here.
[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A glass package sealing base, characterized in that: The invention comprises a base body (1), a first sealing groove (2), a second sealing groove (3), a first sealing plate (4), a second sealing plate (5), a lead (6), an oil filling hole (7), a mounting plate (8) and a fastening bolt (9), wherein a first sealing plate (4) is provided on one side of the base body (1), a first sealing groove (2) is provided at a position corresponding to the first sealing plate (4) on the base body (1), a plurality of lead wires (6) are provided in the first sealing groove (2), a glass insulator is provided at the connection between the plurality of lead wires (6) and the base body (1), an oil filling hole (7) is provided in the base body (1) near the first sealing groove (2), and the size of the oil filling hole (7) is adapted to the size of the lead wire (6).
2. The glass package sealing base according to claim 1, characterized in that: Two mounting plates (8) are provided on the lower side of the base body (1), the two mounting plates (8) are symmetrically arranged relative to the lead (6), and both mounting plates (8) are L-shaped.
3. The glass package sealing base according to claim 2, characterized in that: A second sealing plate (5) is provided on the base body (1) at a position close to the mounting plate (8).
4. The glass package sealing base according to claim 3, characterized in that: A second sealing groove (3) is provided on the base body (1) at a position corresponding to the second sealing plate (5), and the size of the second sealing groove (3) is adapted to the size of the second sealing plate (5).
5. The glass package sealing base according to claim 2, characterized in that: Both mounting plates (8) are provided with fastening bolts (9), and one end of the two fastening bolts (9) abuts against the second sealing plate (5).
6. The glass package sealing base according to claim 1, characterized in that: An oil filling groove (10) is provided on the upper side of the base body (1) near the oil filling hole (7), and the oil filling groove (10) is a rectangular groove.