CN208223560U - A kind of cooling component of automobile air flow meter - Google Patents
A kind of cooling component of automobile air flow meter Download PDFInfo
- Publication number
- CN208223560U CN208223560U CN201820047500.4U CN201820047500U CN208223560U CN 208223560 U CN208223560 U CN 208223560U CN 201820047500 U CN201820047500 U CN 201820047500U CN 208223560 U CN208223560 U CN 208223560U
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- China
- Prior art keywords
- channel
- flow
- flow meter
- air flow
- automobile air
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Abstract
The utility model relates to a kind of air flow meter more particularly to a kind of cooling components of automobile air flow meter.The cooling component includes accessory channel body, flow detecting element in automobile air flow meter is placed in the spiral accessory channel in accessory channel body, the streaming flow being formed by the spiral accessory channel is opposite with the fluid flow direction in main channel, and straight-through flow channel is arranged in the supporting substrate in automobile air flow meter, carries out cooling supporting substrate by the fluid in fluid channel and spiral accessory channel.The utility model can in the case where not influenced by the heat of the spontaneous heating of electronic circuit component and main channel accurately measuring flow, and structure is simply easy to use.
Description
Technical field
The utility model relates to a kind of air flow meter more particularly to a kind of cooling components of automobile air flow meter.
Background technique
A kind of thermal air flowmeter, by heating heating resistor come measuring flow, and detection arrangement is in heating electricity
Hinder the temperature change of the temperature-sensitive resistor near device.
In addition, driving includes electronic circuit component and the flow measurement device installation of the flow detecting element of heating resistor
Thermal conductivity such as ceramics etc. on the supporting substrate being formed of an electrically insulating material.
The purpose of miniaturization of flow measurement device reduces the reduction with number of components with the cost of flow measurement device
And it improves, and to be arranged close to electronic circuit component nearest for flow detecting element.Therefore, because electronic circuit component is spontaneous
Heat that is hot and being easy to cause flow detecting element, heat become the factor for increasing measurement error.
In the prior art, it is only cooled down from the direction that air flows.Since cooling efficiency is low, convection current cannot be inhibited
Measure the heat affecting of detecting element.Especially there are problems that measurement accuracy variation in the thermal air flowmeter of miniaturization.
In addition, in this thermal air flowmeter, other than the spontaneous heating by electronic circuit component is influenced, also
Heat by main channel is influenced.It is thus impossible to sufficiently inhibit the influence of heat, it is desirable that more efficient cooling and thermal release is arranged
It applies.
The influence of the heat of main channel is fluid of the heat in internal flow of main channel when the temperature of main channel is higher
Flow detecting element is transmitted to when temperature is lower, measurement error increases.For example, although the temperature of outside air is lower, air inlet pipe
Intake air temperature it is also higher, but since the heat of the engine in air inlet pipe is attracted, such as automobile engine.Because of main channel
Heat pass through the shell of flow detecting element in this state and supporter is transmitted to flow detecting element, so conduction temperature
Degree becomes measuring error.
Summary of the invention
In order to solve the above-mentioned technical problem, the utility model provides a kind of cooling component of automobile air flow meter,
Can in the case where not influenced by the heat of the spontaneous heating of electronic circuit component and main channel accurately measuring flow.
The technical solution that the utility model is taken to achieve the above object are as follows:
A kind of cooling component of automobile air flow meter, the cooling component include accessory channel body, automobile air flow meter
Interior flow detecting element is placed in the spiral accessory channel in accessory channel body, is formed by the spiral accessory channel
Streaming flow and main channel in fluid flow direction on the contrary, and supporting substrate setting in automobile air flow meter it is straight-through
Fluid channel carries out cooling supporting substrate by the fluid in fluid channel and spiral accessory channel.
As a further improvement, the spiral accessory channel is to be vortexed rotary setting counterclockwise.
The utility model can be smart in the case where not influenced by the heat of the spontaneous heating of electronic circuit component and main channel
True ground measuring flow, and structure is simply easy to use.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the side view of the utility model.
Specific embodiment
Specific embodiment of the present utility model is made a detailed explanation with reference to the accompanying drawing.
As shown in Figs. 1-2, a kind of automobile air flow meter, the flowmeter include setting supporting substrate 7, institute on main channel 2
The supporting substrate 7 stated is that the ceramic material of rectangle is constituted；The flow inspection of heating resistor is set on 7 side of supporting substrate
Element 9 is surveyed, the flow detecting element 9 is placed in main channel, and electronic circuit component is arranged in 7 other side of supporting substrate
8, the electronic circuit component 8 is placed in the accommodating chamber of shell 4, it is characterised in that: auxiliary is arranged in the lower end of the shell 4
Channel body 3, the flow detecting element 9 are placed in the spiral accessory channel 5 in accessory channel body 3, the spiral auxiliary
The fluid flow direction in streaming flow and main channel being formed by channel 5 is on the contrary, the spiral accessory channel 5 is whirlpool
Rotary setting counterclockwise is flowed, the air-flow for flowing into spiral accessory channel 5 from entrance 10 is guided and flows out from outlet 11, the speed of air-flow
Degree detects the flow for flowing through accessory channel 5 by flow detecting element 9, and is input to electronic circuitry part 8 to measure air stream
Amount, the supporting substrate 7 is partially exposed in main channel between shell 4 and accessory channel body 3, and is set on expose portion
Set straight-through flow channel 6.
The supporting substrate 7 is mutually cooled down by accessory channel body 3 and the fluid of opposite direction in straight-through flow channel 6.
Claims (1)
1. a kind of cooling component of automobile air flow meter, it is characterised in that: the cooling component includes accessory channel body, and automobile is empty
Flow detecting element in air-flow meter is placed in the spiral accessory channel in accessory channel body, in the spiral accessory channel
Streaming flow is formed by with the fluid flow direction in main channel on the contrary, and the supporting substrate in automobile air flow meter set
Straight-through flow channel is set, cooling supporting substrate is carried out by the fluid in fluid channel and spiral accessory channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820047500.4U CN208223560U (en) | 2018-01-12 | 2018-01-12 | A kind of cooling component of automobile air flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820047500.4U CN208223560U (en) | 2018-01-12 | 2018-01-12 | A kind of cooling component of automobile air flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208223560U true CN208223560U (en) | 2018-12-11 |
Family
ID=64533298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820047500.4U Expired - Fee Related CN208223560U (en) | 2018-01-12 | 2018-01-12 | A kind of cooling component of automobile air flow meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208223560U (en) |
-
2018
- 2018-01-12 CN CN201820047500.4U patent/CN208223560U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Auto air flow meter's cooling component Effective date of registration: 20191218 Granted publication date: 20181211 Pledgee: China Merchants Bank (CMB) Limited by Share Ltd Wenzhou branch Pledgor: Wenzhou Ding Cheng Electronic Technology Co., Ltd. Registration number: Y2019330000343 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181211 Termination date: 20210112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |