CN216447455U

CN216447455U - Window type fuel cell air system back pressure valve

Info

Publication number: CN216447455U
Application number: CN202122933635.5U
Authority: CN
Inventors: 张乐; 史国军; 李永刚
Original assignee: EONTRONIX CO LTD
Current assignee: EONTRONIX CO LTD
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-05-06
Anticipated expiration: 2031-11-26

Abstract

The utility model relates to the technical field of automobile parts, in particular to a window type fuel cell air system back pressure valve which comprises a valve body with an opening at one end, wherein a valve core is arranged in the valve body, an air inlet cover plate is arranged at one end of the opening of the valve body, an air inlet is arranged on the air inlet cover plate, a motor is arranged at the other end of the valve body, a transmission rod connected with the valve core is arranged at the output end of the motor, an air outlet is arranged on the side wall of the valve body, the valve core is driven to rotate by the motor, so that the intermittent sealing and releasing of the air inlet are realized, the gas flow is driven, the structure is simple, the size and the weight are small, the use is more convenient, the valve core is driven to rotate between 0 and 90 degrees by adopting a stepping motor, the vibration of the motor is reduced, and the operation is more stable.

Description

Window type fuel cell air system back pressure valve

Technical Field

The utility model relates to the technical field of automobile spare and accessory parts, in particular to a window type fuel cell air system back pressure valve.

Background

The angle stroke window type back pressure valve can rotate in a design range through the control element to change the flow cross section area on the matching surface, and has the advantages that the control is close to linearization, and the pressure of an air system can be accurately controlled; the flow resistance is between a straight stroke conical surface type and an angle stroke butterfly valve type; the fuel cell system has the advantages that the fuel cell system has larger useless volume, particularly when the pipe diameter is larger, but the fuel cell system is insensitive to the volume requirement on a commercial vehicle, and the total volume of the fuel cell system can be reduced by improving the integration degree of an intercooler, a humidifier and a back pressure valve; another shortcoming is that the movable sealing surface is great, has the risk that freezes under the low temperature environment and lead to cold start failure, needs design the movable sealing surface carefully, or with back pressure valve and intercooler, humidifier integration, utilizes the external heat source to heat. Beijing alder can produce one such product, using an offset single-channel window, thus creating a dead volume behind the valve spool, resulting in a back pressure valve with a large volume and weight.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides a window type fuel cell air system back pressure valve which is small in size and simple in structure.

The utility model is realized by the following technical scheme: a window type fuel cell air system back pressure valve comprises a valve body with an opening at one end, wherein a valve core is arranged in the valve body, an air inlet cover plate is arranged at one end of the opening of the valve body, an air inlet is formed in the air inlet cover plate, a motor is arranged at the other end of the valve body, a transmission rod connected with the valve core is arranged at the output end of the motor, and an air outlet is formed in the side wall of the valve body.

Furthermore, a flange plate is arranged on one side, facing the air inlet cover plate, of the valve body.

Further, the motor is a stepping motor, and the motor is connected with the valve body through a bolt.

Furthermore, the air inlets are fan-shaped, and the number of the air inlets is two and the air inlets are distributed in an axisymmetrical mode by taking the diameter of the air inlet cover plate as an axis.

Furthermore, the valve core comprises a connecting rod connected with the transmission rod, a valve plate is arranged at one end, facing the air inlet cover plate, of the connecting rod, and a fan-shaped through hole corresponding to the position of the air inlet is formed in the valve plate.

Furthermore, the connecting rod is detachably connected with the transmission rod, one end, facing the valve core, of the transmission rod is provided with a clamping prism, and the connecting rod is provided with a plug hole matched with the clamping prism for use.

The utility model has the beneficial effects that: this window formula fuel cell air system back pressure valve, including one end open-ended valve body, be provided with the case in the valve body, valve body open-ended one end is provided with the apron of admitting air, be provided with the air inlet on the apron of admitting air, the other end of valve body is provided with the motor, the output of motor is provided with the transfer line of being connected with the case, be provided with the gas outlet on the lateral wall of valve body, it rotates to drive the case through the motor, the realization is sealed with the release to the intermittent type nature of air inlet, drive gaseous flow, moreover, the steam generator is simple in structure, small in size and weight, and it is more convenient to use.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;

FIG. 4 is a bottom view of the present invention;

fig. 5 is a schematic structural view of the valve cartridge of the present invention.

Wherein: 1-a valve body; 2-a valve core; 3-air inlet cover plate; 4-an air inlet; 5, a motor; 6-a transmission rod; 7-air outlet; 8-a flange plate; 9-a connecting rod; 10-a valve plate; 11-a fan-shaped through hole; 12-clamping a prism; 13-plug hole.

Detailed Description

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Example 1

As shown in fig. 1-5, a window type fuel cell air system back pressure valve comprises a valve body 1 with an opening at one end, a valve core 2 is arranged in the valve body 1, an air inlet cover plate 3 is arranged at one open end of the valve body 1, an air inlet 4 is arranged on the air inlet cover plate 3, a motor 5 is arranged at the other end of the valve body 1, a transmission rod 6 connected with the valve core 2 is arranged at the output end of the motor 5, an air outlet 7 is arranged on the side wall of the valve body 1, the valve core 2 is driven to rotate by the motor 5, and intermittent sealing and releasing of the air inlet 4 are realized so as to drive the gas to flow.

One side of valve body 1 towards air intake cover plate 3 is provided with

ring flange

8, and 3 lock of air intake cover plate are on the surface of ring flange 8, scribble sealing glue at the lock department and strengthen sealedly, and the border position all around of air intake cover plate 3 is provided with the installation through-hole, wears to establish the bolt in the through-hole and installs back pressure valve on fuel cell's box and fix.

The motor 5 adopts the stepping motor 5, the valve core 2 can be controlled to rotate between 0 and 90 degrees by adopting the stepping motor 5, and the motor 5 is connected with the valve body 1 through a bolt, so that the disassembly and the maintenance are convenient.

Air inlet 4 is fan-shaped, and the quantity of air inlet 4 is two and uses the diameter of air inlet apron 3 to distribute as the axial symmetry, and two air inlets 4 are located the middle part of air inlet apron 3, can more effective utilization and the contact of fuel tank body out of the plane.

The valve core 2 comprises a connecting rod 9 connected with the transmission rod 6, a valve plate 10 is arranged at one end, facing the air inlet cover plate 3, of the connecting rod 9, a fan-shaped through hole 11 corresponding to the position of the air inlet 4 is formed in the valve plate 10, the fan-shaped through hole 11 is overlapped or biased with the air inlet 4 in the rotation process, and therefore sealing and ventilation modes are achieved, and air flow is driven.

Connecting rod 9 and transfer line 6 detachable connection, transfer line 6 is provided with the prismatic 12 of joint towards the one end of case 2, is provided with the spliced eye 13 that uses with the prismatic 12 cooperation of joint on the connecting rod 9, and grafting through the prismatic 12 of joint and spliced eye 13 is with case 2 and motor 5 lug connection, simple structure and make things convenient for the later stage to overhaul.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. A window type fuel cell air system back pressure valve is characterized in that: the valve comprises a valve body with an opening at one end, wherein a valve core is arranged in the valve body, an air inlet cover plate is arranged at one end of the opening of the valve body, an air inlet is formed in the air inlet cover plate, a motor is arranged at the other end of the valve body, a transmission rod connected with the valve core is arranged at the output end of the motor, and an air outlet is formed in the side wall of the valve body.

2. A window fuel cell air system back pressure valve as claimed in claim 1, wherein: and a flange plate is arranged on one side of the valve body facing the air inlet cover plate.

3. A window fuel cell air system back pressure valve as claimed in claim 1, wherein: the motor adopts a stepping motor, and the motor is connected with the valve body through a bolt.

4. A window fuel cell air system back pressure valve as claimed in claim 1, wherein: the air inlets are fan-shaped, and the number of the air inlets is two and the air inlets are distributed in an axisymmetric mode by taking the diameter of the air inlet cover plate as an axis.

5. The windowed fuel cell air system back pressure valve of claim 4, wherein: the valve core comprises a connecting rod connected with the transmission rod, a valve plate is arranged at one end, facing the air inlet cover plate, of the connecting rod, and a fan-shaped through hole corresponding to the position of the air inlet is formed in the valve plate.

6. The windowed fuel cell air system back pressure valve of claim 5, wherein: the connecting rod is detachably connected with the transmission rod, a clamping prism is arranged at one end, facing the valve core, of the transmission rod, and a plug hole matched with the clamping prism for use is formed in the connecting rod.