Integrated chip miniaturized sensor

Abstract

An integrated chip miniaturized sensor comprises a shell, a protective cover, a chip and a coil rack, the shell and the protective cover are connected together through threads, the top of the shell is provided with a screw plug, the protective cover is provided with a sealing gasket, the sealing gasket is provided with a plurality of positioning protrusions, a support is fixed on the positioning protrusions, and the coil rack is fixed on the support. The support is sleeved with a magnet, one end of a spring is arranged on the support in a sleeved mode, the other end of the spring is arranged at the bottom of the screw plug in a sleeved mode, a through hole is formed in the middle of the coil frame, the top of the through hole is clamped on the inner wall of the shell, the bottom of the through hole is clamped outside the magnet, and a coil is arranged on the outer ring of the coil frame. The chip is arranged on the coil rack, and a capacitor is also fixed on the coil rack. According to the structure, the chip is arranged on the coil rack, and the coil rack is a component of the sensor, so that the size of a product is not increased due to the arrangement of the chip, and the structure is very compact.

Description

Technical Field

[0001] The utility model belongs to the technical field of sensors, and in particular relates to a miniaturized sensor with an integrated chip. Background Art

[0002] At present, ordinary water level sensors do not have chips installed inside, and need to be connected to an external substrate to output frequency signals. Due to certain errors in different substrates, there is a certain error in the frequency signal output by the substrate in the production workshop and the substrate used by the customer, so it is impossible to achieve accurate adjustment of the water level. At the same time, when there is a problem with the substrate in the production workshop, it cannot be discovered in time, which will cause certain losses.

[0003] Chinese patent document "CN109989229A" discloses "a water level sensor". A water level sensor includes a plastic shell, the plastic shell includes an air cover and a shell connected by a first buckle, and installed from top to bottom between the shell and the air cover are an adjusting screw, a pressure spring, a skeleton, a spring seat, a magnetic core, a bracket, a diaphragm and a compensation spring, a second buckle is provided on the skeleton, a circuit board is fixed to the skeleton by the second buckle, a control system composed of a capacitor, a chip and a resistor is provided on the circuit board, a coil is also wound around the skeleton, and the control system and the coil constitute an LC oscillation circuit.

[0004] Although this water level sensor also integrates a chip, the position of the chip is not set properly. A circuit board specially installed with the chip is directly set on the top of the shell, which greatly increases the size of the product and is not compact enough. In addition, the capacitor in the LC oscillation circuit is installed in the chip, and the tolerance range of the capacitor installed in the chip is large, which cannot meet the requirements of measuring and adjusting the water level. Summary of the invention

[0005] The utility model aims to solve the deficiencies and defects of the prior art and provides a miniaturized sensor with an integrated chip. The chip is installed in a housing with a compact structure, and the capacitor is installed separately, so that the measurement accuracy is greatly improved.

[0006] The basic concept of the technical solution adopted by the utility model is: an integrated chip miniaturized sensor, including a shell, a protective cover, a chip and a coil frame, the shell and the protective cover are connected together by threads, the top of the shell has a screw plug, the protective cover is provided with a sealing gasket, the sealing gasket is provided with several positioning protrusions, the bracket is fixed on the positioning protrusion, the bracket is covered with a magnet, one end of the spring is sleeved on the bracket, the other end of the spring is sleeved on the bottom of the screw plug, the middle of the coil frame has a through hole, the top of the through hole is clamped on the inner wall of the shell, the bottom of the through hole is clamped outside the magnet, the outer ring of the coil frame is provided with a coil, the chip is installed on the coil frame, and a capacitor is also fixed on the coil frame. In this structure, the chip is arranged on the coil frame, and the coil frame itself is a component of the sensor, so the arrangement of the chip will not increase the volume of the product, and the structure is very compact. In addition, the capacitor is assembled separately on the coil frame, which can be further screened and classified to form a smaller tolerance range, which is suitable for adjusting the initial frequency.

[0007] In the above technical solution, preferably, the screw plug is connected to the top of the shell through threads.

[0008] In the above technical solution, preferably, a buckle is provided on the coil frame, and the chip is fixed on the coil frame by the buckle.

[0009] In the above technical solution, preferably, a first copper sheet connected to the coil and a second copper sheet connected to the external power supply are provided on the chip.

[0010] In the above technical solution, preferably, the outer ring of the sealing gasket has a circle of sealing ring, and the sealing ring is stuck in the gap between the shell and the protective cover.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The chip is set on the coil frame, and the coil frame itself is a component of the sensor, so the chip setting does not increase the volume of the product, and the structure is very compact. In addition, the capacitor is assembled separately on the coil frame, which can be further screened and classified to form a smaller tolerance range, which is suitable for adjusting the initial frequency.

[0013] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the present invention.

[0015] Figure 2 It is a schematic diagram of the decomposition of the present invention.

[0016] Figure 3It is a cross-sectional view of the present invention.

[0017] Figure 4 Schematic diagram of the chip and coil frame combination. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0019] like Figures 1 to 4 As shown, a small-sized sensor device with an integrated chip includes an adjusting screw plug 1, a housing 2, a spring 3, a magnet 4, a coil frame 5, a capacitor 6, a chip 7, a coil 8, a sealing gasket 9, a bracket 10, and a protective cover 11.

[0020] The housing 2 and the protective cover 11 are connected to each other by threads, the sealing gasket 9 is arranged on the protective cover, and a sealing ring 91 is arranged around the circumference of the sealing gasket 0, and the sealing ring 91 is inserted into the gap between the housing 2 and the protective cover 11. The middle position of the sealing gasket has several positioning protrusions 92, and the bracket 10 is fixed on the positioning protrusions 92. The magnet 4 is sleeved on the bracket 10.

[0021] One end of the spring 3 is sleeved on the top of the bracket 10 , and the other end of the spring is sleeved on the bottom of the screw plug 1 . The bolt 1 is connected to the top of the housing 2 through threads.

[0022] The coil frame 5 has a through hole 51 in the middle, the top of the through hole 51 is stuck on the inner wall of the housing 2, and the bottom of the through hole is stuck outside the magnet 4. The chip 7 and the capacitor 6 are installed on the coil frame 5. The coil 8 is arranged on the outer ring of the coil frame 5.

[0023] Specifically, the coil frame 5 is provided with a buckle 5a, and the chip 7 is fixed on the coil frame by the buckle. The chip 7 is provided with a first copper sheet 71 connected to the coil 8 and a second copper sheet 72 connected to the external power supply.

[0024] In the utility model, the chip is arranged on the coil frame, and the coil frame itself is a component of the sensor, so the arrangement of the chip does not increase the volume of the product, and the structure is very compact. In addition, the capacitor is assembled separately on the coil frame, which can be further screened and classified to form a smaller tolerance range, which is suitable for adjusting the initial frequency.

Claims

1. An integrated chip miniaturized sensor, comprising a housing, a protective cover, a chip and a coil frame, wherein the housing and the protective cover are connected together by threads, a screw plug is provided on the top of the housing, a sealing gasket is provided on the protective cover, a plurality of positioning protrusions are provided on the sealing gasket, a bracket is fixed on the positioning protrusion, a magnet is provided on the outer sleeve of the bracket, one end of the spring is sleeved on the bracket, the other end of the spring is sleeved on the bottom of the screw plug, a through hole is provided in the middle of the coil frame, the top of the through hole is clamped on the inner wall of the housing, and the bottom of the through hole is clamped outside the magnet, characterized in that: The outer ring of the coil frame is provided with a coil, the chip is mounted on the coil frame, and a capacitor is also fixed on the coil frame.

2. The integrated chip miniaturized sensor according to claim 1, characterized in that: The screw plug is connected to the top of the housing by threads.

3. The integrated chip miniaturized sensor according to claim 1, characterized in that: The coil frame is provided with a buckle, and the chip is fixed on the coil frame by the buckle.

4. The integrated chip miniaturized sensor according to claim 3, characterized in that: The chip is provided with a first copper sheet connected to the coil and a second copper sheet connected to an external power source.

5. The integrated chip miniaturized sensor according to claim 1, characterized in that: The outer ring of the sealing gasket is provided with a circle of sealing ring, and the sealing ring is inserted into the gap between the shell and the protective cover.

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