CN112413864B

CN112413864B - Double-temperature-zone air conditioner controller

Info

Publication number: CN112413864B
Application number: CN202011335591.XA
Authority: CN
Inventors: 张良; 余绍春
Original assignee: Chongqing Ruiyang Jixing Technology Co ltd
Current assignee: Chongqing Ruiyang Jixing Technology Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-10-01
Anticipated expiration: 2040-11-25
Also published as: CN112413864A

Abstract

The invention belongs to the technical field of automobile parts, and provides a dual-temperature-zone air conditioner controller which comprises a circuit board, a coder and a knob structure, wherein the knob structure comprises a knob guide cylinder, a knob cap and a collapsing assembly; the knob guide cylinder is connected with a rotating member of the encoder, the knob cap and the knob guide cylinder are coaxially arranged and are in sliding connection with the knob guide cylinder, and the knob cap and the knob guide cylinder are enclosed together to form an installation cavity; the subassembly that contracts of ulcerate is fixed to be set up in the installation cavity, and the subassembly that contracts of ulcerate includes: a housing; the piston is arranged in the shell in a sliding mode; one end of the transmission rod is connected with the knob guide cylinder, and the other end of the transmission rod is connected with the piston rod; one end of the piston, which is far away from the transmission rod, and the shell are enclosed to form a first cavity, the transmission rod, the piston and the shell are enclosed to form a second cavity, and a gas medium is filled in the first cavity. The dual-temperature-zone air conditioner controller provided by the invention has a simple structure, and the crumple component cannot be damaged when crumple occurs, so that the maintenance cost is lower.

Description

Double-temperature-zone air conditioner controller

Technical Field

The invention relates to the technical field of automobile parts, in particular to a dual-temperature-zone air conditioner controller.

Background

According to the regulation of GB11552 passenger vehicle interior projection published by the State administration of quality supervision, inspection and quarantine of the people's republic of China and the State Committee of standardization and management of China: the height of the projection exceeds 9.5mm, and the projection needs to be collapsed when the projection is impacted by 378N, and the height of the projection after the collapse needs to be lower than 9.5 mm. The collapsing design is designed to provide some cushioning for sudden deceleration to reduce the maximum amount of damage that the occupant may be subjected to.

The invention patent with the publication number of CN108177498B provides a knob structure of an automobile air conditioner controller, which comprises a knob assembly and a control shaft, wherein a crumple piece is arranged between the knob assembly and the control shaft. Through will burst the piece and be connected with knob subassembly and control shaft respectively for when pressure surpassed the intensity of the piece that bursts, thereby the piece that bursts breaks realizes bursting of knob subassembly and contracts.

However, the knob structure of the automotive air conditioner controller damages the crush member when the crush occurs. Therefore, replacement of the new crush can be required for continued use, thereby increasing maintenance costs.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a dual-temperature-zone air conditioner controller which cannot be damaged when the controller is collapsed, so that the maintenance cost is saved.

In order to achieve the purpose, the invention provides a dual-temperature-zone air conditioner controller, which comprises a circuit board, an encoder and a knob structure, wherein the knob structure comprises a knob guide cylinder, a knob cap and a collapsing assembly;

the knob guide cylinder is connected with a rotating member of the encoder, the knob cap and the knob guide cylinder are coaxially arranged and are in sliding connection with the knob guide cylinder, and the knob cap and the knob guide cylinder enclose a mounting cavity together;

the subassembly that contracts is fixed to be set up in the installation cavity, the subassembly that contracts that contracts includes:

a housing provided with a hollow interior cavity;

a piston slidably disposed within the housing and sealed thereto; and

one end of the transmission rod is connected with the knob guide cylinder, and the other end of the transmission rod extends into the shell to be connected with the piston rod and keeps sealed with the shell;

one end of the piston, which is far away from the transmission rod, and the shell are enclosed to form a first cavity, the transmission rod, the piston and the shell are enclosed to form a second cavity, and a gas medium is filled in the first cavity.

Further, a pressure limiting valve is arranged on one side, far away from the piston, of the first cavity.

Further, one side of the housing is provided with a first passage that communicates the first chamber with the second chamber.

Further, a tapered opening is arranged in the first channel, and the tapered opening gradually decreases along the direction from the second cavity to the first cavity.

Further, the crush module further includes a valve assembly disposed on a side of the cone facing the knob cap, the valve assembly including:

the valve comprises a valve body, a first channel and a second channel, wherein a connecting part is arranged in the first channel, a sliding hole is formed in the center of the connecting part, a plurality of through holes are formed in the periphery of the sliding hole, a guide rod is arranged on one side, facing the sliding hole, of the valve body, and the guide rod is connected with the sliding hole in a sliding mode;

the reset spring is sleeved on the guide rod, two ends of the reset spring are respectively abutted against the connecting part and the valve, and the reset spring has a tendency of enabling the valve to move towards the direction close to the conical opening in a natural state; and

the valve is provided with a second channel along the axial lead of the valve, and the one-way valve is arranged on one side of the second channel, which is far away from the knob cap.

Further, the side of the valve facing the cone-shaped opening is adapted to the cone-shaped surface of the cone-shaped opening.

Further, in a natural state, the air pressure in the first cavity and the air pressure in the second cavity are equal.

Further, the gaseous medium is nitrogen.

The invention has the beneficial effects that:

the dual-temperature-zone air conditioner controller provided by the invention realizes the crumpling of the knob structure by arranging the crumpling component, and the crumpling component cannot be damaged when the crumpling occurs, so that the maintenance cost is saved.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a front view of a dual temperature zone air conditioner controller according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a knob structure of an embodiment of the dual temperature zone air conditioner controller shown in FIG. 1;

FIG. 3 is a cross-sectional view of a knob structure of yet another embodiment of the dual temperature zone air conditioner controller shown in FIG. 1;

fig. 4 is an enlarged view at a shown in fig. 3.

Reference numerals:

100-circuit board, 200-encoder, 300-knob structure, 310-knob guide cylinder, 320-knob cap, 330-collapsing component, 331-shell, 332-piston, 333-transmission rod, 301-first cavity, 302-second cavity, 340-pressure limiting valve, 350-valve component, 351-valve, 352-return spring, 353-one-way valve and 354-guide rod.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1 to 4, the present invention provides a dual temperature zone air conditioner controller, which comprises a circuit board 100, an encoder 200 and a knob structure 300. Wherein the encoder 200 is fixedly connected with the circuit board 100 through the positioning pins.

The knob structure 300 includes a knob guide 310, a knob cap 320, and a crush assembly 330.

Wherein, one end of the knob guide cylinder 310 is connected with the rotating member of the encoder 200, the knob cap 320 is coaxially arranged with the knob guide cylinder 310 and is slidably connected with the knob guide cylinder 310, and the knob cap 320 and the knob guide cylinder 310 enclose to form an installation cavity together. Specifically, the knob cap 320 is sleeved on the knob guide cylinder 310, spline structures matched with each other are arranged on the outer circumferential surface of the knob guide cylinder 310 and the inner circumferential surface of the knob cap 320, and the knob guide cylinder 310 and the knob cap 320 are slidably connected through the spline structures.

The collapsing assembly 330 is fixedly disposed in the mounting cavity, preferably, a mounting plate is disposed in the knob guide 310, and the collapsing assembly 330 is connected to the knob guide 310, the encoder 200 or the circuit board 100 through the mounting plate, so that when the collapsing assembly 330 acts, the force applied to the collapsing assembly 330 is transmitted to the circuit board 100 through the mounting plate to increase the force-bearing area, thereby reducing the damage to the circuit board 100.

The crush assembly 330 includes a housing 331, a piston 332, and a drive rod 333.

Wherein, the housing 331 is opened with a hollow inner cavity. The piston 332 is slidably mounted in the housing 331 and maintains a seal with the housing 331. The piston 332 thus divides the interior of the housing 331 into two portions.

One end of the transmission rod 333 is connected with the knob guide cylinder 310, and the other end extends into the housing 331 to be connected with the piston 332 in a rod manner and keeps sealed with the housing 331.

One end of the piston 332 far away from the transmission rod 333 and the shell 331 are enclosed to form a first cavity 301, the transmission rod 333, the piston 332 and the shell 331 are enclosed to form a second cavity 302, and the first cavity 301 is filled with a gas medium. Thus, when knob cap 320 is pressurized, drive rod 333 is compressed, thereby pushing piston 332 through drive rod 333 and compressing the gaseous medium in first chamber 301, thus causing a collapse. After the pressure on the knob cap 320 is removed, the pressure of the gas medium is restored to the original position, so that the crush assembly 330 is not replaced. Therefore, the crush module 330 is not damaged when the crush occurs, and the crush module 330 does not need to be replaced afterwards, thereby saving the repair cost.

As shown in FIG. 2, in one embodiment, a pressure limiting valve 340 is mounted to a side of the first chamber 301 remote from the piston 332. Thus, when the force transmitted by the knob cap 320 to the pressure limiting valve 340 is greater than the threshold value of the pressure limiting valve 340, the pressure limiting valve 340 can control the critical pressure value of the collapse by adjusting the threshold value of the pressure limiting valve 340, so that the critical pressure value is closer to the specified value of the national standard GB11552, namely 378N.

The crumple assembly 330 with the structure is convenient for controlling the critical pressure value of crumple, and meanwhile, the structure is simple, and only the gas medium needs to be refilled into the crumple assembly 330 afterwards. No replacement of the crush assembly 330 is required thereby saving maintenance costs.

Because the gas medium in the first cavity 301 of the structural collapsing assembly 330 will flow out through the pressure limiting valve 340, the gas medium in the structure can be replaced by the liquid medium, and only a container for storing the liquid medium needs to be arranged at the other end of the pressure limiting valve 340 to prevent the liquid medium from damaging the circuit board 100.

As shown in fig. 3-4, in one embodiment, a first passage is formed at one side of the housing 331, and the first passage communicates the first chamber 301 with the second chamber 302. Because the volume of the first chamber 301 gradually decreases and the volume of the second chamber 302 gradually increases during collapse. The first chamber 301 and the second chamber 302 are communicated through a first passage. Thus, when the knob is pressurized to push the piston 332, the gas medium in the first cavity 301 is transferred into the second cavity 302 through the first channel, so that the reaction force transferred to the knob cap 320 by the piston 332 in the process of collapsing can be reduced. Because the gaseous medium is compressed during collapse, the pressure within the second chamber 302 increases. The gaseous medium in the second chamber 302 will flow into the first chamber 301 through the first channel after the fact, thereby restoring the knob cap 320 to its original position.

As shown in fig. 3-4, in one embodiment, a tapered opening is provided in the first passage, the tapered opening tapering in a direction from the second chamber 302 to the first chamber 301. This facilitates the installation of the valve assembly 350.

As shown in fig. 3-4, in one embodiment, the crush assembly 330 further includes a valve assembly 350, the valve assembly 350 being mounted on the side of the tapered mouth facing the knob cap 320, the valve assembly 350 including a valve 351, a return spring 352, and a one-way valve 353.

Wherein, a connecting part is arranged in the first channel, a sliding hole is arranged at the center of the connecting part, a plurality of through holes are arranged at the periphery of the sliding hole, a guide rod 354 is arranged at one side of the valve 351 facing the sliding hole, and the guide rod 354 is connected with the sliding hole in a sliding way.

The return spring 352 is sleeved on the guide rod 354, two ends of the return spring 352 are respectively abutted against the connecting part and the valve 351, and in a natural state, the return spring 352 has a tendency of moving the valve 351 to a direction close to the tapered opening. That is, in a natural state, the return spring 352 causes the valve 351 to close the conical throat.

The valve 351 is opened with a second channel along its axial line, and the check valve 353 is installed at a side of the second channel far from the knob cap 320.

Thus, when collapsing, the knob cap 320 pushes the piston 332 to compress the gas in the first cavity 301 through the transmission rod 333, so that the gas in the first cavity 301 pushes the valve 351 to overcome the pressure of the return spring 352, and the conical opening is opened, so that the first channel is communicated, and the gas medium in the first cavity 301 can enter the second cavity 302 through the first channel. Because the gaseous medium is compressed during collapse, the pressure within the second chamber 302 increases. The gaseous medium in the second chamber 302 will flow into the first chamber 301 through the one-way valve 353 afterwards, thereby restoring the knob cap 320 to its original position.

The collapse assembly 330 with this structure can control the critical pressure value of the collapse by controlling the elastic force of the return spring 352, and then the gas medium in the second chamber 302 can be returned to the first chamber 301 through the check valve 353, so that the knob cap 320 can be restored to the original position. Therefore, the knob cap 320 can be restored to the original position for normal use without replacing the knob assembly, and the maintenance cost is saved.

As shown in fig. 3-4, in one embodiment, the side of the valve 351 facing the tapered opening conforms to the tapered surface of the tapered opening. This configuration helps the valve 351 to close off the cone.

As shown in fig. 1-4, in one embodiment, the air pressure in the first chamber 301 and the second chamber 302 are equal under natural conditions. In particular, i.e. in case the knob cap 320 is not receiving pressure, the pressure in the first cavity 301 and the second cavity 302 is equal.

As shown in fig. 1-4, in one embodiment, the gaseous medium is nitrogen. The nitrogen is relatively stable.

In the description of the present invention, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. The utility model provides a dual temperature zone air conditioner controller, includes circuit board, encoder and knob structure, its characterized in that: the knob structure comprises a knob guide cylinder, a knob cap and a collapsing assembly;

a housing provided with a hollow interior cavity;

a piston slidably disposed within the housing and sealed thereto; and

one end of the piston, which is far away from the transmission rod, and the shell are enclosed to form a first cavity, the transmission rod, the piston and the shell are enclosed to form a second cavity, and a gas medium is filled in the first cavity;

a first channel is arranged on one side of the shell and is used for communicating the first cavity with the second cavity;

a conical opening is arranged in the first channel, and gradually changes along the direction from the second cavity to the first cavity;

the crush module further includes a valve assembly disposed on a side of the cone facing the knob cap, the valve assembly including:

2. The dual temperature zone air conditioning controller of claim 1, wherein: the side of the valve facing the conical opening is adapted to the conical surface of the conical opening.

3. The dual temperature zone air conditioning controller of claim 2, wherein: in a natural state, the air pressure in the first cavity is equal to that in the second cavity.

4. The dual temperature zone air conditioner controller of any one of claims 1-3, wherein: the gas medium is nitrogen.