CN219222903U

CN219222903U - Evaporator with pressure maintaining function

Info

Publication number: CN219222903U
Application number: CN202223298461.0U
Authority: CN
Inventors: 陈养珍; 周树武; 陈伟文
Original assignee: Wenzhou Coolpro Auto Parts Co ltd
Current assignee: Zhejiang Jinlepu Automotive Parts Co.,Ltd.
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-06-20
Anticipated expiration: 2032-12-09

Abstract

The utility model discloses a pressure-maintaining evaporator which comprises an evaporator body, wherein a water inlet pipe and a water outlet pipe are arranged on the evaporator body, the water inlet pipe and the water outlet pipe are parallel and close to each other, the inlet end face of the water inlet pipe and the water outlet end face of the water outlet pipe are on the same plane, the pressure-maintaining device is arranged at the end part of the water inlet pipe and the end part of the water outlet pipe, the port of the water inlet pipe and the port of the water outlet pipe are plugged by a first rubber plug and a second rubber plug of the pressure-maintaining device, so that a sealing state is realized in a pipeline, and then nitrogen is injected into the pipeline for pressure maintaining, so that the evaporator has the dual functions of moisture prevention, pressure maintaining and detection omission prevention, and the process is simple and the manufacturing cost is low.

Description

Evaporator with pressure maintaining function

Technical Field

The utility model relates to a component in an air conditioning system on a vehicle, in particular to an evaporator with pressure maintaining function.

Background

The evaporator in the air conditioning system is mainly used for evaporating low-pressure refrigerant from the expansion valve and absorbing heat of air in the vehicle, so that the aim of cooling the vehicle is fulfilled.

The evaporator can be inflated after being produced, and one of the most important indexes for checking whether the evaporator is qualified or not is air tightness, namely whether the evaporator leaks or not. The normal production flow is after helium inspection or water inspection until finished products are filled and delivered, and the air tightness inspection is basically not performed any more. However, this procedure still has two major risks of missing inspection and secondary damage during the assembly of the indoor unit, and in fact such a problem does occur.

Therefore, to ensure absolute sealing of the evaporator, the evaporator pressure maintaining process is increased from the viewpoint of quality control. The pressure maintaining process is different in modes adopted by different enterprises, and has the advantages of complex process, large equipment investment, high material consumption and relatively high cost, and the evaporator is extremely easy to be damp in the storage and transportation process, meanwhile, the risk of omission is caused, and the use reliability of the evaporator is affected.

Disclosure of Invention

In order to solve the problems, the utility model provides a pressure maintaining evaporator, which aims to be provided with a pressure maintaining device on the evaporator, and the pressure maintaining device has simple process and low cost.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a take pressurize evaporimeter, includes the evaporimeter body, is equipped with inlet tube and outlet pipe on the evaporimeter body, the inlet tube with the outlet pipe is parallel to each other and is close to each other, the inlet end of inlet tube with the outlet end face of outlet pipe is on the coplanar, still including installing the pressurizer at inlet tube tip and outlet pipe tip, the pressurizer includes gland, first rubber buffer, second rubber buffer and bottom plate, first rubber buffer is gone into in the inlet end of inlet tube, the second rubber buffer is gone into in the outlet end of outlet pipe, be equipped with annular spacing ring on the perisporium that is close to its tip on inlet tube and outlet pipe respectively, the bottom plate on be equipped with the draw-in groove, the bottom plate sets up the below of spacing ring, the external diameter of spacing ring is greater than the bore of draw-in groove, the inlet tube with the outlet pipe is followed the draw-in groove passes, the end of inlet tube with the gland with the tip of outlet pipe, a bolt passes the gland with bottom plate threaded connection, a needle tubing inserts first rubber buffer or second rubber buffer and fills up in the pipeline.

The gland is internally provided with a first groove matched with the first rubber plug, and the gland is internally provided with a second groove matched with the second rubber plug.

The first rubber plug is convexly provided with a first plug body, the peripheral wall of the first plug body is conical, the second rubber plug is convexly provided with a second plug body, and the peripheral wall of the second plug body is conical.

And a sealing ring is also arranged between the limiting ring and the gland.

The beneficial effects of the utility model are as follows: the port of the water inlet pipe and the port of the water outlet pipe are plugged by the first rubber plug and the second rubber plug of the pressure maintaining device, so that the sealing state is realized in the pipeline, and then nitrogen is injected into the pipeline through the needle tube for maintaining pressure, so that the evaporator has the dual functions of moisture prevention and pressure maintaining for preventing missed detection, and the process is simple and the manufacturing cost is low.

The utility model is further described below with reference to the drawings and detailed description.

Drawings

FIG. 1 is a block diagram of a specific embodiment of the present utility model;

FIG. 2 is an exploded view of a pressure retention device in accordance with an embodiment of the present utility model;

fig. 3 is a cross-sectional view of a pressure retention device in accordance with an embodiment of the present utility model.

Detailed Description

The present utility model is described in detail below by way of examples only for further explanation of the present utility model and is not to be construed as limiting the scope of the present utility model.

As shown in fig. 1-3, the embodiment discloses a pressure-maintaining evaporator, which comprises an evaporator body 1, wherein the evaporator body 1 comprises fins 11, a guard plate, a water inlet pipe 13 and a water outlet pipe 12, pipes are inserted in the fins 11, ports of the pipes are connected to the guard plate, the pipes are communicated through bent pipes and form a plurality of water inlet ends and water outlet ends which are in one-to-one correspondence with the water inlet ends, the water inlet ends are connected with the water inlet pipe 13 through capillaries, the water outlet ends are connected with water collecting pipes, the water collecting pipes are connected with the water outlet pipe 12, the water inlet pipe 13 and the water outlet pipe 12 are parallel to each other and are close to each other, the inlet end face of the water inlet pipe 13 and the water outlet end face of the water outlet pipe 12 are on the same plane, the pressure-maintaining device 10 is arranged at the end part of the water inlet pipe 13 and the end part of the water outlet pipe 12, the pressure maintaining device 10 comprises a gland 2, a first rubber plug 3, a second rubber plug 4 and a bottom plate 5, wherein the first rubber plug 3 is plugged into the inlet end of a water inlet pipe 13, the second rubber plug 4 is plugged into the outlet end of a water outlet pipe 12, annular limiting rings 6 are respectively arranged on the peripheral walls of the water inlet pipe 13 and the water outlet pipe 12, which are close to the end parts of the water inlet pipe and the water outlet pipe, U-shaped clamping grooves are arranged on the bottom plate 5, the bottom plate 5 is arranged below the limiting rings 6, the outer diameter of the limiting rings 6 is larger than the caliber of the clamping grooves, the water inlet pipe 13 and the water outlet pipe 12 penetrate through the clamping grooves, the gland 2 covers the end parts of the water inlet pipe 13 and the end parts of the water outlet pipe 12, a bolt 7 penetrates through the gland 2 and is in threaded connection with the bottom plate 5, a needle tube is inserted into the first rubber plug 3 or the second rubber plug 4 to fill nitrogen in a pipeline and keep certain air pressure, and a needle hole on the rubber plug can be automatically closed without leakage after the needle tube is pulled out.

The gland 2 is internally provided with a first groove 21 matched with the first rubber plug 3, and the gland 2 is internally provided with a second groove 22 matched with the second rubber plug 4. Thus, the first rubber stopper 3 is placed in the first groove 21, the second rubber stopper 4 is placed in the second groove 22, and certain pressure is applied to the first rubber stopper 3 and the second rubber stopper 4, so that the absolute tightness of the first rubber stopper 3 and the second rubber stopper 4 is ensured.

The first rubber stopper 3 is provided with the first stopper body 31 in a protruding mode, the peripheral wall of the first stopper body 31 is conical, so that the first rubber stopper 3 is more convenient and reliable when being plugged into the inlet end of the water inlet pipe 13, the second rubber stopper 4 is provided with the second stopper body 41 in a protruding mode, the peripheral wall of the second stopper body 41 is conical, and when the second rubber stopper 4 is inserted into the inlet end of the water outlet pipe 12 through the structure, the fit is tighter, and the tightness is improved.

A sealing ring 8 is also arranged between the limit ring 6 and the gland 2. This ensures that the first recess 21 and the second recess 22 are effectively sealed after assembly, thereby further improving the tightness of the pipe.

By adopting the technical scheme, the port of the water inlet pipe 13 and the port of the water outlet pipe 12 are plugged through the first rubber plug 3 and the second rubber plug 4 of the pressure maintaining device, so that the sealing state is realized in the pipeline, and then nitrogen is injected into the pipeline through the needle tube for pressure maintaining, so that the evaporator has the dual functions of moisture prevention and pressure maintaining for preventing detection omission, and the process is simple and the manufacturing cost is low.

And finally, during assembly, the pressure detection can be carried out on the pipeline of the evaporator, the detected pressure is qualified, if no air pressure is detected, the pipeline of the evaporator is leaked, only scrapping or repairing treatment can be carried out, the pressure detection mode can be used for detecting whether the first plug body or the second plug body is opened to see whether air bubbles exist by using an air pressure meter or putting the evaporator into liquid, and whether air is sprayed out when the first plug body or the second plug body is opened.

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a take pressurize evaporimeter, includes the evaporimeter body, be equipped with inlet tube and outlet pipe on the evaporimeter body, its characterized in that: the utility model provides a water inlet pipe, the inlet tube with the outlet pipe is parallel to each other and is close to each other, the inlet end of inlet tube with the outlet end face of outlet pipe is on the coplanar, still including installing the pressure maintaining device at inlet tube tip and outlet pipe tip, pressure maintaining device includes gland, first rubber buffer, second rubber buffer and bottom plate, first rubber buffer is gone into in the inlet end of inlet tube, the second rubber buffer is gone into in the outlet end of outlet pipe, be equipped with annular spacing ring on the perisporium that is close to its tip on inlet tube and outlet pipe respectively, the bottom plate on be equipped with the draw-in groove, the bottom plate sets up the below of spacing ring, the external diameter of spacing ring is greater than the bore of draw-in groove, inlet tube with the outlet pipe is followed the needle tubing passes, the gland covers the tip of inlet tube with the tip of outlet pipe, a bolt pass the gland with bottom plate threaded connection, one insert first rubber buffer or second rubber buffer annotate nitrogen gas in the pipeline.

2. The pressure maintaining evaporator as claimed in claim 1, wherein: the gland is internally provided with a first groove matched with the first rubber plug, and the gland is internally provided with a second groove matched with the second rubber plug.

3. The pressure maintaining evaporator as claimed in claim 1, wherein: the first rubber plug is convexly provided with a first plug body, the peripheral wall of the first plug body is conical, the second rubber plug is convexly provided with a second plug body, and the peripheral wall of the second plug body is conical.

4. The pressure maintaining evaporator as claimed in claim 1, wherein: and a sealing ring is also arranged between the limiting ring and the gland.