Search

CN-224228760-U - Novel ash of structure is strained and filter device of CVS valve assembly

CN224228760UCN 224228760 UCN224228760 UCN 224228760UCN-224228760-U

Abstract

The utility model relates to a novel-structure filter device of an ash filter and CVS valve assembly used on an automobile, which solves the problems that in the prior art, the connection mode between an end cover and a tank body of the ash filter is complex, and the disassembly and the assembly processes are complex when a filter element is replaced. The CVS valve is connected with the ash filter in a guiding insertion and rotating clamping mode, so that the CVS valve can be accurately and rapidly connected with or detached from the ash filter, the CVS valve check locking device is further arranged to ensure the connection stability, and the installation efficiency and quality are improved. Furthermore, the overall filtration and waterproof performance of the ash filter are improved through the structural optimization of the air inlet channel with the labyrinth structure, the height of the air outlet port in the lifting tank body and the like.

Inventors

  • WANG ZHIBIN

Assignees

  • 嘉兴恩阔弗汽车零部件有限公司

Dates

Publication Date
20260512
Application Date
20250605

Claims (10)

  1. 1. The ash filter with the novel structure comprises a tank body, an end cover for closing the opening end of the tank body and a hollow filter element positioned in the tank body, and is characterized in that a first guide structure matched with the shape of the outer edge of the end cover is arranged on the tank body and used for guiding the end cover to be inserted into the tank body in an aligned position, and after the end cover is inserted into the tank body and rotated in place, the end cover and the tank body are mutually matched through a clamping fixedly-connected structure of a clamping groove and a clamping block to realize locking.
  2. 2. The ash filter with the novel structure according to claim 1, wherein a plurality of clamping blocks are arranged on the outer wall of the part of the end cover inserted into the tank body, a plurality of clamping grooves are correspondingly formed in the wall of the tank body, and the clamping blocks are clamped into the corresponding clamping grooves on the tank body to realize locking after the end cover is inserted into the tank body and rotated in place.
  3. 3. A novel ash filter structure as defined in claim 1 or 2, wherein the ash filter is further provided with an end cover check locking device.
  4. 4. A novel ash filter structure is characterized in that the end cover check locking structure is characterized in that a strip-shaped protrusion is arranged on the end cover, a boss is arranged outside the tank body, a check groove with a corresponding shape is arranged in the middle of the boss corresponding to the strip-shaped protrusion, and when the end cover rotates to a locking position, the strip-shaped protrusion is clamped into the check groove to play a role of check locking.
  5. 5. A novel ash filter structure as defined in claim 3, wherein the air inlet on the tank body is provided with an air inlet channel with a labyrinth structure, and the air inlet channel with the labyrinth structure is a tortuous path air inlet channel formed by a plurality of baffles which are mutually staggered.
  6. 6. The ash filter with the novel structure according to claim 5, wherein the air inlet channel on the tank body is communicated with the air outlet port protruding inwards from the center of the bottom of the tank body, the filter element is sleeved on the air outlet port, the matching part of the inner hole of the filter element and the air outlet port of the tank body realizes a first sealing structure through interference fit, the matching part of the outer periphery of the filter element and the inner wall of the tank body realizes a second sealing structure through interference fit, and a double sealing structure is formed between the filter element and the tank body.
  7. 7. A novel structure of ash filter according to claim 6, characterized in that the height H of the upper port to the root of the outlet port is in the range of 1/2 to 3 times its outer diameter D.
  8. 8. The filter device of the CVS valve assembly is characterized by comprising a CVS valve and the ash filter according to any one of claims 1-7, wherein a connecting port is arranged on the ash filter, a connector is arranged on the CVS valve and is detachably inserted into the connecting port, a second guide structure matched with the shape of the outer edge of the connector is arranged on the connecting port and is used for guiding the CVS valve connector to be inserted into the connecting port in an aligned position, and after the CVS valve connector is inserted into the connecting port and rotated in place, locking is realized by the mutual matching of a clamping groove and a clamping block clamping and fixing structure between the CVS valve connector and the connecting port.
  9. 9. A filter assembly for a CVS valve assembly according to claim 8, wherein said filter assembly is further provided with a CVS valve check lock.
  10. 10. A filter device of a CVS valve assembly according to claim 9, wherein the check locking device of the CVS valve is characterized in that a check rod is arranged on the ash filter tank body, a stop block is arranged outside the CVS valve, and when the CVS valve rotates to a locking position, the stop block and the check rod are mutually matched to realize check locking through a clamping position.

Description

Novel ash of structure is strained and filter device of CVS valve assembly Technical Field The utility model relates to the technical field of filters, in particular to a filter device of an ash filter and CVS valve assembly with a novel structure, which is used on an automobile. Background In the prior art, the automobile ash filter is usually referred to as an ash filter of a fuel evaporation emission control system or a carbon tank ash filter, and the main function of the automobile ash filter is to be arranged on a pipeline path of the system communicated with the outside, filter dust and particulate matters in the air and prevent the dust and the particulate matters from entering the system, thereby protecting related components. The ash filter structure form in the market at present mainly comprises an end cover, a filter element and a tank body. The end cover and the tank body are injection molded parts, the filter element is arranged in the end cover and the tank body are connected and fixed in a clamping or welding mode according to design requirements. The ash filter is widely applied to the traditional energy vehicles which purely use the fuel engine as power, and is widely applied to the new energy vehicles which use the hybrid power of pure electric drive and fuel drive. But the connection mode between the end cover of prior art ash filter and the jar body is complicated, when changing the filter core, dismantles and installs the process loaded down with trivial details, needs professional instrument and higher operating skill, has not only increased maintenance cost, has still reduced work efficiency, in frequent change process moreover, causes the part to damage easily, influences the life of ash filter, and the current ash filter structure still easily takes place the problem that the filter core was contra-installed, and this can make filtering capability inefficacy, can't reach anticipated result of use. In addition, the existing ash filter structure is poor in waterproof performance, and under the working condition that the water is possibly contacted in a wet environment, the water easily enters the ash filter, so that a filter element and other parts are damaged, the filtering effect is reduced, and even equipment faults are caused. Furthermore, to meet the detection of on-board automatic diagnostic systems (OBD), it is common to choose to install CVS valves in some vehicle models. The CVS valve is used to direct the flow of steam into the canister by inputting air into the canister. Two types of CVS valve are installed, one is integrated and installed on a carbon tank body or ash filter, for example, chinese patent document CN209067375U discloses a novel air filter of an integrated CVS valve for a carbon tank, and the other is split type and connected in series on a pipeline, and the installation mode of the CVS valve is generally selected due to the integral layout of an oil tank. The CVS valve fails and will tend to affect the OBD detection. The two installation modes have certain limitations, the integrated CVS valve ash filter can not be detached independently for maintenance or replacement, and the serial carbon tank ventilation solenoid valve (CVS) and the ash filter are connected through a pipeline structure, so that the installation is difficult, the cost is high, unstable connection can occur, and the performance and the stability of the whole system are affected. Disclosure of Invention One of the technical problems to be solved by the utility model is to provide the ash filter with a novel structure, which is convenient to install and disassemble and is convenient to install the filter element. The second technical problem to be solved by the utility model is to provide a filter device of the ash filter and CVS valve assembly with a novel structure, which can ensure the stable connection between the ash filter tank body and the CVS. The utility model solves the problems existing in the water prevention aspect of the existing ash filtering structure, and improves the reliability and practicality of the ash filtering device. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The ash filter with the novel structure comprises a tank body, an end cover for closing the opening end of the tank body and a hollow filter element positioned in the tank body, and is characterized in that a first guide structure matched with the shape of the outer edge of the end cover is arranged on the tank body and used for guiding the end cover to be inserted into the tank body in an aligned position, and after the end cover is inserted into the tank body and rotated in place, the end cover and the tank body are mutually matched through a clamping fixedly-connected structure of a clamping groove and a clamping block to realize locking. Preferably, a plurality of clamping blocks are arranged on the outer wall of the part of the end cover inserted in