CN220853678U - Sensor integrating liquid level detection and acceleration detection functions - Google Patents
Sensor integrating liquid level detection and acceleration detection functions Download PDFInfo
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- CN220853678U CN220853678U CN202322282888.XU CN202322282888U CN220853678U CN 220853678 U CN220853678 U CN 220853678U CN 202322282888 U CN202322282888 U CN 202322282888U CN 220853678 U CN220853678 U CN 220853678U
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- Control Of Washing Machine And Dryer (AREA)
Abstract
The utility model relates to a sensor integrating liquid level detection and acceleration detection functions, and relates to the technical field of MEMS sensors. The device comprises a shell, a printed circuit board, at least one wire harness, a liquid level sensor and an acceleration sensor; the shell forms accommodation space, and PCB, level sensor and acceleration sensor are located the accommodation space that the shell formed. Through carrying out level sensor and acceleration sensor's integration on the PCB board to carry out the shell setting outside the PCB board, with level sensor and acceleration sensor integrated to the same module in the middle of, make under the prerequisite that two sensors work each other noninterference, can export the signal that produces in two sensors through single group pencil, on simplifying the basis of structure, reduce the required bus quantity of transmission signal, and then optimized the inside space distribution of electrical apparatus, improved the inside space utilization efficiency of electrical apparatus.
Description
Technical Field
The utility model relates to the field of Micro-Electro-MECHANICAL SYSTEM, MEMS (Micro-Electro-MECHANICAL SYSTEM, MEMS) sensors, in particular to a sensor integrating liquid level detection and acceleration detection functions.
Background
The liquid level sensor is used for detecting the liquid level, the acceleration sensor is used for detecting the vibration size and direction generated by the device, and in practical application, the liquid level sensor and the acceleration sensor are combined according to requirements and integrated in the product.
In the related art, since the washing machine needs to monitor its working state and the water level in the tub during use, a liquid level sensor and an acceleration sensor are generally provided in the washing machine. When the liquid level sensor and the acceleration sensor are integrated, the liquid level sensor and the acceleration sensor are arranged independently, namely the liquid level sensor and the acceleration sensor work independently under the condition of being in different modules, and detected signals are sent to the processing module.
However, the arrangement of independent modules in the related art will cause a large amount of space to be occupied, and when the processing module is connected to the motherboard, multiple signal lines are required to be occupied, that is, the arrangement of independent modules in the related art will cause a large amount of space and signal lines to be occupied, which affects the space allocation planning in the electrical appliance.
Disclosure of Invention
The utility model relates to a sensor integrating liquid level detection and acceleration detection functions, which can enable an internal space allocation plan of an electric appliance to be reasonable under the condition of having the liquid level detection and acceleration detection functions.
The device comprises a shell, a printed circuit board (Printed Circuit Board, a PCB), at least one wire harness, a liquid level sensor and an acceleration sensor;
The shell forms an accommodating space, and the PCB, the liquid level sensor and the acceleration sensor are positioned in the accommodating space formed by the shell;
The liquid level sensor and the acceleration sensor are positioned on the working surface of the PCB, and are attached to the working surface of the PCB;
One end of the wire harness is located on the working face of the PCB, one end of the wire harness is welded with the working face of the PCB, and the other end of the wire harness protrudes out of the shell.
In one possible implementation, the housing includes a housing front cover and a rear cover;
The inner side of the front cover of the shell is provided with a first groove, and the front cover of the shell and the rear cover of the shell are connected through the first groove.
In one possible implementation, the first groove is coated with glue;
the front cover of the shell and the rear cover of the shell are fixedly connected in a gluing mode.
In one possible implementation, the inner side of the housing front cover has a second groove, and the PCB is connected to the housing front cover through the second groove.
In one possible implementation, the second groove is coated with glue;
The PCB is fixedly connected with the front cover of the shell in a gluing mode.
In one possible implementation, the surface of the PCB is coated with UV glue for waterproofing, the thickness of the UV glue being 3um.
In one possible implementation, the housing space formed by the housing is filled with a potting glue.
In one possible implementation, the housing front cover has openings on both sides.
In one possible implementation, the level sensor is of the type: SV-MAP-010D.
In one possible implementation, the model of the acceleration sensor is: SV-DA16.
The technical scheme provided by the utility model has the beneficial effects that at least:
Through carrying out level sensor and acceleration sensor's integration on the PCB board to carry out the shell setting outside the PCB board, with level sensor and acceleration sensor integrated to the same module in the middle of, make under the prerequisite that two sensors work each other noninterference, can export the signal that produces in two sensors through single group pencil, on simplifying the basis of structure, reduce the required bus quantity of transmission signal, and then optimized the inside space distribution of electrical apparatus, improved the inside space utilization efficiency of electrical apparatus.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 shows a schematic structural diagram of a sensor integrating liquid level detection and acceleration detection functions.
Fig. 2 shows a schematic structural diagram of a PCB according to the present utility model.
Fig. 3 shows a schematic structural view of a front cover of a housing according to the present utility model.
Fig. 4 shows a schematic structural view of a rear cover of a housing according to the present utility model.
Fig. 5 shows a schematic circuit structure of a PCB according to the present utility model.
The labels in the figures are as follows:
1-PCB, 2-wire harness, 3-liquid level sensor, 4-acceleration sensor and 6-opening;
51-a housing front cover, 52-a housing rear cover;
511-first groove, 512-second groove.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the embodiments of the present utility model will be described in further detail with reference to the accompanying drawings.
The sensor integrating the liquid level detection and the acceleration detection functions can be applied to electric appliances including washing machines, and can adapt to various scenes in which the motion state of the electric appliance and the internal or external water level of the electric appliance are required to be determined simultaneously. The utility model is not limited to the specific application scene of the sensor.
Fig. 1 shows a schematic structural diagram of a sensor integrating liquid level detection and acceleration detection functions provided by the utility model; fig. 2 shows a schematic structural diagram of a PCB1 according to the present utility model; fig. 3 shows a schematic structural view of a front cover 51 of a housing according to the present utility model; fig. 4 shows a schematic structural view of a rear cover 52 of the housing provided by the present utility model; fig. 5 shows a schematic circuit structure of a PCB1 according to the present utility model. Referring to fig. 1 to 4, the sensor integrating the liquid level detection and the acceleration detection functions includes a housing, a PCB1, at least one wire harness 2, a liquid level sensor 3, and an acceleration sensor 4; the shell forms an accommodating space, and the PCB1, the liquid level sensor 3 and the acceleration sensor 4 are positioned in the accommodating space formed by the shell; the liquid level sensor 3 and the acceleration sensor 4 are positioned on the working surface of the PCB1, and the liquid level sensor 3 and the acceleration sensor 4 are attached to the working surface of the PCB 1; one end of the wire harness 2 is located on the working face of the PCB1, one end of the wire harness 2 is welded with the working face of the PCB1, and the other end of the wire harness 2 protrudes out of the shell.
In the embodiment of the present application, referring to fig. 1, the PCB1, the liquid level sensor 3 attached to the PCB1, and the acceleration sensor 4 are all accommodated inside the housing, and only one end of the wire harness 2, which is not connected to the PCB1, protrudes from the housing to be used as a signal wire for connection with other electrical components. Referring to fig. 2, the liquid level sensor 3 and the acceleration sensor 4 are integrated on the working surface of the PCB 1. Optionally, the liquid level sensor 3 and the acceleration sensor 4 are attached to the PCB1 by means of surface mount technology (SMT, surface Mounting Technology) patches. The present application is not limited to the circuit configuration on the PCB 1. In one example, the circuit configuration on the PCB1 is shown in fig. 5.
When the sensor integrating the liquid level detection and acceleration detection functions is in an operating state, the liquid level sensor 3 is used for measuring the water level at a specified position. The acceleration sensor 4 is used to detect the motion state of a specified structure. For example, when the sensor integrating the liquid level detection and the acceleration detection functions provided by the present utility model is placed inside the washing machine, the liquid level sensor 3 is used to measure the liquid level of the water tub inside the washing machine, and the acceleration sensor 4 is used to detect the movement state of the water tub inside the washing machine.
In summary, according to the method provided by the embodiment of the utility model, the liquid level sensor and the acceleration sensor are integrated on the PCB, the shell is arranged outside the PCB, and the liquid level sensor and the acceleration sensor are integrated into the same module, so that signals generated in the two sensors can be output through a single wire harness on the premise that the two sensors work without interference, the number of buses required for transmitting the signals is reduced on the basis of simplifying the structure, the space allocation inside the electric appliance is optimized, and the space utilization efficiency inside the electric appliance is improved.
Next, a specific structure of the apparatus will be further described:
Referring to fig. 3 and 4, in an alternative embodiment, the housing includes a housing front cover 51 and a housing rear cover 52; the inner side of the case front cover 51 has a first groove 511, and the case front cover 51 and the case rear cover 52 are connected by the first groove 511. In this case, the first groove 511 is coated with glue; the housing front cover 51 and the housing rear cover 52 are fixedly connected in a glue manner.
In an alternative embodiment, the housing front 51 has a second recess 512 on the inside, and the pcb1 is connected to the housing front 51 by the second recess 512. In this case, the second groove 512 is coated with glue, and the PCB1 is fixedly coupled to the housing front cover 51 in a glue manner. Optionally, during assembly, the PCB1 is first adhesively attached to the second recess 512, and then the housing back cover 52 is adhesively attached to the first recess 511. During the assembly process, the first groove 511 and the second groove 512 may be pre-coated with glue.
In an alternative embodiment, the surface of the PCB1 is coated with UV glue for waterproofing, the thickness of the UV glue being 3um. Through the surface coating of UV glue, PCB can satisfy PCBA level's surface waterproof requirement.
In an alternative embodiment, the housing space formed by the housing is filled with potting glue to encapsulate the sensor inside.
In an alternative embodiment, the housing front cover 51 has openings 6 on both sides for securing or connecting with other powered devices.
Corresponding to the specific type of the liquid level sensor 3 and the acceleration sensor 4, in an alternative embodiment, the liquid level sensor 3 is a pressure sensor, the model of which is SV-MAP-010D, and the model of the acceleration sensor 4 is SV-DA16:
The foregoing description of the preferred embodiments of the present utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements within the spirit and principles of the present utility model.
Claims (10)
1. The sensor integrating the liquid level detection and the acceleration detection functions is characterized by comprising a shell, a Printed Circuit Board (PCB) (1), at least one wire harness (2), a liquid level sensor (3) and an acceleration sensor (4);
The shell forms a containing space, and the PCB (1), the liquid level sensor (3) and the acceleration sensor (4) are positioned in the containing space formed by the shell;
The liquid level sensor (3) and the acceleration sensor (4) are positioned on the working surface of the PCB (1), and the liquid level sensor (3) and the acceleration sensor (4) are attached to the working surface of the PCB (1);
One end of the wire harness (2) is located on the working face of the PCB (1), one end of the wire harness (2) is connected with the working face of the PCB (1) in a welded mode, and the other end of the wire harness (2) protrudes out of the shell.
2. The sensor integrating liquid level detection and acceleration detection functions according to claim 1, characterized in, that the housing comprises a housing front cover (51) and a rear cover (52);
The inner side of the shell front cover (51) is provided with a first groove (511), and the shell front cover (51) and the shell rear cover (52) are connected through the first groove (511).
3. The sensor integrating liquid level detection and acceleration detection functions according to claim 2, characterized in that the first groove (511) is coated with glue;
The shell front cover (51) and the shell rear cover (52) are fixedly connected in a gluing mode.
4. The sensor integrating liquid level detection and acceleration detection functions according to claim 2, characterized in that the inner side of the housing front cover (51) is provided with a second groove (512), and the PCB (1) and the housing front cover (51) are connected through the second groove (512).
5. The sensor integrating liquid level detection and acceleration detection functions according to claim 4, characterized in, that the second groove (512) is coated with glue;
The PCB (1) is fixedly connected with the front cover (51) of the shell in a gluing mode.
6. The sensor integrating liquid level detection and acceleration detection functions according to claim 1, characterized in that the surface of the PCB (1) is coated with UV glue for waterproofing, the thickness of the UV glue being 3um.
7. The sensor integrating liquid level detection and acceleration detection according to claim 1, wherein the housing space formed by the housing is filled with potting adhesive.
8. The sensor integrating liquid level detection and acceleration detection functions according to claim 1, characterized in that the housing front cover (51) is provided with openings (6) on both sides.
9. The sensor integrating liquid level detection and acceleration detection functions according to claim 1, characterized in that the liquid level sensor is of the type: SV-MAP-010D.
10. The sensor integrating liquid level detection and acceleration detection functions according to claim 1, characterized in that the acceleration sensor has the following model: SV-DA16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322282888.XU CN220853678U (en) | 2023-08-24 | 2023-08-24 | Sensor integrating liquid level detection and acceleration detection functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322282888.XU CN220853678U (en) | 2023-08-24 | 2023-08-24 | Sensor integrating liquid level detection and acceleration detection functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220853678U true CN220853678U (en) | 2024-04-26 |
Family
ID=90746522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322282888.XU Active CN220853678U (en) | 2023-08-24 | 2023-08-24 | Sensor integrating liquid level detection and acceleration detection functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220853678U (en) |
-
2023
- 2023-08-24 CN CN202322282888.XU patent/CN220853678U/en active Active
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