Multifunctional pressing plate with filter screen

Abstract

The utility model discloses a multifunctional pressing plate with a filter screen, which is used for realizing an integration function of an automobile heat exchanger core body, a refrigerant flow channel used for communicating a heat exchanger and an integrated part of the heat exchanger is arranged in the multifunctional pressing plate, a filter cavity is arranged on the refrigerant flow channel, a built-in filter screen is detachably arranged in the filter cavity, and the built-in filter screen is arranged in the filter cavity along the flowing direction of a refrigerant. An assembly hole is formed in the refrigerant flow channel, and the assembly hole is used for installing an equipment part for detecting or controlling flowing of the refrigerant; the built-in filter screen of the multifunctional pressing plate can prevent impurities in an inner cavity of a heat exchanger from entering a refrigerant circulation system, so that channel blockage is avoided, meanwhile, the built-in filter screen is detachable, cleaning and replacement are convenient, the system maintenance difficulty is reduced, the open grooves with grid lines are formed in the welding face of the multifunctional pressing plate, capillary flow of welding flux is increased, and the service life of the multifunctional pressing plate is prolonged. Therefore, the welding quality is improved, and the fixing effect of the multifunctional pressing plate is enhanced.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicle-mounted heat exchange equipment, specifically to a multi-functional pressure plate with a filter screen. Background Technology

[0002] The automotive industry has increasingly higher requirements for integration. Traditional single heat exchangers can no longer meet the requirements of system layout. Integrated components have many additional equipment parts, high requirements for welding strength, and complex internal channel structures. They are prone to channel blockage caused by impurities in the heat exchanger, which affects the normal use of the heat exchange equipment. Utility Model Content

[0003] Technical objective: To address the shortcomings of existing integrated heat exchanger systems, this utility model discloses a multifunctional pressure plate with a filter screen.

[0004] Technical solution: To achieve the above technical objectives, the present invention adopts the following technical solution:

[0005] A multifunctional pressure plate with a filter screen is used to integrate the core of an automotive heat exchanger. The multifunctional pressure plate has a refrigerant flow channel for connecting the heat exchanger and its integrated components. A filter chamber is provided on the refrigerant flow channel, and a removable built-in filter screen is provided in the filter chamber. Along the refrigerant flow direction, an assembly hole is provided on the refrigerant flow channel. The assembly hole is used to install equipment components for detecting or controlling the flow of refrigerant.

[0006] Preferably, the built-in filter of this utility model is provided with reinforcing ribs along the direction of insertion into the filter cavity, and the reinforcing ribs are distributed at intervals along the circumference of the built-in filter.

[0007] Preferably, the built-in filter and the filter chamber of this invention are interference-fitted.

[0008] Preferably, the assembly holes of this utility model include a PT sensor mounting threaded hole and an expansion valve mounting threaded hole. The expansion valve mounting threaded hole is located at the rear end of the filter chamber along the refrigerant flow direction, and the PT sensor mounting threaded hole is located at the filter chamber.

[0009] Preferably, the multifunctional pressure plate of this utility model is welded and fixed on the heat exchanger core. The surface near the heat exchanger core is the welding surface. Several intersecting and interconnected grid patterns are opened on the welding surface. The grid patterns form a flow path in the welding surface to assist the flow of the solder.

[0010] Preferably, the functional pressure plate of this utility model has a process groove in the middle of the welding surface to divide the welding surface into independent welding areas.

[0011] Preferably, the outer periphery of the welding surface of this utility model is provided with an anti-climbing groove at a position corresponding to the assembly hole on the multi-functional pressure plate, and the welding surface is separated from the surface of other areas of the multi-functional pressure plate by the anti-climbing groove.

[0012] Beneficial effects: The multifunctional pressure plate with filter screen disclosed in this utility model has the following beneficial effects:

[0013] 1. The multifunctional pressure plate of this utility model has a built-in filter screen, which can prevent impurities in the heat exchanger cavity from entering the refrigerant circulation system, thereby avoiding channel blockage. At the same time, the detachable design of the built-in filter screen is easy to clean and replace, reducing the difficulty of system maintenance.

[0014] 2. This utility model sets a grid-patterned groove on the welding surface of the multi-functional pressure plate to increase the capillary flow of the solder, thereby improving the welding quality and strengthening the fixing effect of the multi-functional pressure plate.

[0015] 3. This utility model provides an anti-climbing groove in the area corresponding to the assembly hole on the outer periphery of the welding surface, which can prevent the flux from climbing to the assembly hole, ensure the roughness of the assembly hole, and avoid affecting the installation and sealing performance of subsequent equipment and the assembly hole. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0017] Figure 1 This is a perspective view of the multifunctional pressure plate of this utility model;

[0018] Figure 2 This is a structural diagram of the built-in filter of this utility model;

[0019] Figure 3 This is a structural diagram of the welding surface of the multifunctional pressure plate of this utility model;

[0020] Among them, 1-multi-functional pressure plate, 2-filter chamber, 3-built-in filter screen, 4-reinforcing rib, 5-PT sensor mounting threaded hole, 6-expansion valve mounting threaded hole, 7-grid pattern, 8-climbing groove, 9-process groove. Detailed Implementation

[0021] Reference will now be made in detail to embodiments of the present disclosure, one or more of which are set forth herein. Each embodiment and example is provided by way of explanation of the apparatus, composition, and materials of the present disclosure, and not by way of limitation. Rather, the following description provides convenient illustrations for implementing exemplary embodiments of the present disclosure. Indeed, it will be apparent to those skilled in the art that various modifications and variations can be made to the teachings of the present disclosure without departing from the scope or spirit of the present disclosure.

[0022] like Figures 1-3 As shown, this utility model discloses a multifunctional pressure plate with a filter screen for integrating functions into an automotive heat exchanger core. The multifunctional pressure plate 1 has a refrigerant flow channel connecting the heat exchanger and its integrated components. A filter chamber 2 is provided on the refrigerant flow channel, and a removable built-in filter screen 3 is installed inside the filter chamber 2. Assembly holes are provided along the refrigerant flow direction on the refrigerant flow channel for installing equipment components that detect or control the refrigerant flow. The equipment components can be selected according to the required function. In an embodiment of this utility model, the equipment components are a PT sensor and an expansion valve. The PT sensor detects the refrigerant temperature at the filter chamber, and the expansion valve controls the refrigerant flow within the flow channel. Correspondingly, as... Figure 1 As shown, the assembly holes of this utility model include a PT sensor mounting threaded hole 5 and an expansion valve mounting threaded hole 6. The expansion valve mounting threaded hole 6 is located at the rear end of the filter chamber 2 along the refrigerant flow direction, and the PT sensor mounting threaded hole 5 is located at the filter chamber 2.

[0023] The built-in filter 3 of this utility model has an interference fit with the filter cavity 2. Reinforcing ribs 4 are provided along the direction of insertion into the filter cavity 2. The reinforcing ribs 4 are distributed at intervals along the circumference of the built-in filter 3. The setting of the reinforcing ribs 4 can enhance the overall structural strength of the filter and reduce the deformation of the built-in filter 3 during the installation process. Preferably, the reinforcing ribs 4 can be set on the inner wall of the built-in filter 3, which facilitates the processing of the filter structure and avoids affecting the assembly between the built-in filter 3 and the filter cavity 2.

[0024] The multifunctional pressure plate 1 of this invention is welded and fixed to the heat exchanger core. The surface closest to the heat exchanger core is the welding surface. Since the multifunctional pressure plate 1 integrates valves and sensors, the fixing strength of the pressure plate is also highly demanding. Conventional welding methods are prone to affecting the overall fixing effect due to poor welding of the welding surface. Therefore, this invention has several intersecting and interconnected grid patterns 7 on the welding surface. The grid patterns 7 form a flow path in the welding surface to assist the flow of solder. During welding, the structure formed by the grid patterns 7 allows the solder to flow capillarily within the grid, improving the welding quality. For cases with a large welding area, a process groove 9 can be opened in the middle of the welding surface of the functional pressure plate 1 to divide the welding surface into independent welding areas.

[0025] Meanwhile, since valves and sensors require welding and fixing of the multi-functional pressure plate before assembly, the flux used in welding will climb up the surface of the pressure plate due to capillary action. When the flux climbs to the sealing surface of the assembly hole, it will affect the sealing effect of subsequent equipment installation. Therefore, this utility model sets an anti-climbing groove 8 on the outer periphery of the welding surface at the position corresponding to the assembly hole on the multi-functional pressure plate 1. The anti-climbing groove 8 separates the welding surface from other areas of the multi-functional pressure plate 1, ensuring welding while preventing flux from climbing up and contaminating the sealing surface of the assembly hole.

[0026] In use, the multi-functional pressure plate 1 is first welded and fixed to the heat exchanger core, and the various equipment components are installed according to the assembly holes. When the automotive refrigerant system is running, the refrigerant enters the filter chamber 2 from the heat exchanger, and after impurities are filtered out by the built-in filter screen 3, it flows towards the condenser along the refrigerant channel. During this process, sensors installed on the multi-functional pressure plate detect parameters such as the refrigerant temperature, and the flow of the refrigerant is controlled by the expansion valve. The multi-functional pressure plate of this invention can effectively integrate automotive refrigerant system components, reduce channel blockage, and ensure reliable fixation.

Claims

1. A multifunctional pressure plate with a filter screen, used for installation in the core of an automotive heat exchanger to achieve integrated functionality, characterized in that, The multi-functional pressure plate (1) is provided with a refrigerant flow channel for connecting the heat exchanger and its integrated components. A filter chamber (2) is provided on the refrigerant flow channel. A removable built-in filter screen (3) is provided in the filter chamber (2). An assembly hole is provided on the refrigerant flow channel along the refrigerant flow direction. The assembly hole is used to install equipment components for detecting or controlling the flow of refrigerant.

2. The multifunctional pressure plate with filter screen according to claim 1, characterized in that, The built-in filter (3) is provided with reinforcing ribs (4) along the direction of insertion into the filter cavity (2), and the reinforcing ribs (4) are distributed circumferentially along the built-in filter (3).

3. The multifunctional pressure plate with a filter screen according to claim 2, characterized in that, The built-in filter (3) and the filter chamber (2) are interference-fitted.

4. A multifunctional pressure plate with a filter screen according to claim 1, characterized in that, The assembly holes include a PT sensor mounting threaded hole (5) and an expansion valve mounting threaded hole (6). The expansion valve mounting threaded hole (6) is located at the rear end of the filter chamber (2) along the refrigerant flow direction, and the PT sensor mounting threaded hole (5) is located at the filter chamber (2).

5. A multifunctional pressure plate with a filter screen according to claim 1, characterized in that, The multifunctional pressure plate (1) is welded and fixed on the heat exchanger core. The surface near the heat exchanger core is the welding surface. Several intersecting and interconnected grid patterns (7) are opened on the welding surface. The grid patterns (7) form a flow path in the welding surface to assist the flow of the solder.

6. A multifunctional pressure plate with a filter screen according to claim 5, characterized in that, The welding surface of the multifunctional pressure plate (1) has a process groove (9) in the middle to divide the welding surface into independent welding areas.

7. A multifunctional pressure plate with a filter screen according to claim 5 or 6, characterized in that, The outer periphery of the welding surface is provided with an anti-climbing groove (8) at a position corresponding to the assembly hole on the multi-functional pressure plate (1), and the welding surface is separated from other areas of the multi-functional pressure plate (1) by the anti-climbing groove (8).

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