HVAC assembly with expansion valve and heater integrally arranged
By integrating the expansion valve and heater and using a molded sponge as a sealing structure, the problem of noise conduction in the existing HVAC assembly is solved, and the effect of reducing assembly work hours and noise conduction is achieved.
Patent Information
- Application Number
- CN202421425131.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-06-20
AI Technical Summary
In the existing HVAC assembly, the expansion valve and heater are arranged separately, resulting in high noise in the engine compartment, which is transmitted into the cockpit through the gap, affecting driving and riding comfort.
The expansion valve and heater are integrated, and a molded sponge is used as a sealing structure to reduce assembly time through one assembly and reduce noise conduction.
It achieves the effect of reducing assembly hours and reducing engine compartment noise transmission into the cockpit, improving the market competitiveness of the product.
Smart Images
Figure CN222807867U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobile air conditioners, and in particular relates to an HVAC assembly with an expansion valve and a heater integrated therein. Background Art
[0002] In the prior art, the traditional design of the HVAC (Heating Ventilation and Air Conditioning) assembly mostly adopts a separate arrangement of the expansion valve and the heater. The expansion valve and the heater have two through holes in the front panel, and two sponges seal the expansion valve and the heater respectively. The engine compartment has a large noise, resulting in more noise transmitted into the cockpit through the gap, which is not comfortable enough during driving and riding in the car, and cannot meet the noise reduction and vibration control requirements of the whole vehicle. Utility Model Content
[0003] In view of the deficiencies in the prior art, the utility model provides an HVAC assembly with an integrated expansion valve and a heater, which integrates the expansion valve and the heater in the assembly of the existing air conditioning system, reduces two assemblies to one assembly, thereby reducing assembly man-hours and reducing the noise transmitted from the engine compartment to the cockpit.
[0004] The utility model is realized by the following technical solutions:
[0005] An expansion valve, a heater and a sealing structure. The heater comprises a water inlet pipe and a water outlet pipe. The sealing structure is provided with an expansion valve through hole, a water inlet pipe through hole and a water outlet pipe through hole.
[0006] Furthermore, the sealing structure adopts a molded sponge, and the water inlet pipe through hole and the water outlet pipe through hole are perpendicular to the same plane.
[0007] Furthermore, on the surface, the horizontal distance between the expansion valve through hole and the water inlet pipe through hole and the water outlet pipe through hole is less than 50 mm, and the horizontal distance between the expansion valve through hole and the water inlet pipe through hole of the heater is 45 mm.
[0008] Furthermore, the front panel metal is provided with a through hole in the shape of a molded sponge and is fitted with the molded sponge. The sealing of the front panel metal is achieved by maintaining an overlap of at least 15 mm between the molded sponge and the front panel metal.
[0009] Furthermore, the water inlet pipe, the water outlet pipe, the expansion valve and the molded sponge are tightly fitted.
[0010] Compared with the prior art, the utility model has the following advantages:
[0011] The utility model proposes an HVAC assembly with an expansion valve and a heater integratedly arranged, wherein the expansion valve and the heater are installed in an integrated manner, and the distance between the expansion valve installation hole and the center of the heater inlet and outlet pipe is controlled within 50 mm. A molded sponge is used, and the molded sponge is wrapped around the expansion valve and the heater inlet and outlet pipes at one time through interference fit for fixing, and two assemblies are reduced to one assembly, thereby reducing assembly hours and reducing the noise transmitted from the engine compartment to the cabin. In addition, after the integrated arrangement, the amount of the original two sponges is reduced to the amount of one molded sponge, saving the unit cost and improving the market competitiveness of the product.
[0012] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0014] Figure 1 The structural composition diagram of the HVAC assembly with an integrated arrangement of an expansion valve and a heater is shown;
[0015] In the figure: 1 is a molded sealing sponge; 2 is a water inlet pipe of the heater; 3 is a water outlet pipe of the heater; 4 is an expansion valve;
[0016] Figure 2 A schematic diagram showing a cross-section of the overlap between the molded sealing sponge and the front panel metal through hole of the HVAC assembly in which the expansion valve and the heater are integrated;
[0017] Figure 3 A front view of an HVAC assembly showing an integrated arrangement of an expansion valve and a heater. DETAILED DESCRIPTION
[0018] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] In the prior art, the traditional design of the integrated heating, ventilation and air conditioning system mostly adopts the arrangement of expansion valve and heater separately, and two sponges seal the expansion valve and heater respectively. The expansion valve and heater have two through holes in the front panel, and the engine compartment is noisy, resulting in more noise transmitted into the cabin through the gap.
[0020] The utility model is further described below in conjunction with the accompanying drawings:
[0021] Figures 1 to 3 An HVAC assembly with an integrated expansion valve and a heater is shown, comprising: a sealing structure, provided with a through hole for the expansion valve, a through hole for the water inlet pipe of the heater and a through hole for the water outlet pipe of the heater; the through hole for the water inlet pipe of the heater and the through hole for the water outlet pipe of the heater are at the same vertical position; the heater comprises a water inlet pipe 2 and a water outlet pipe 3; the water inlet pipe 2, the water outlet pipe 3 and the expansion valve 4 of the heater are tightly fitted with the sealing structure without wrinkling, deformation and the like; a front panel sheet metal is placed on the inner wall of the sealing structure; the center distance between the through hole of the expansion valve 4 of the sealing structure and the through hole of the water inlet pipe 2 and the through hole of the water outlet pipe 3 of the heater is controlled within 50 mm; the sealing of the front panel sheet metal is achieved by maintaining an overlap of at least 15 mm between the molded sponge and the front panel sheet metal.
[0022] Preferably, the flexible structural member is a molded sealing sponge 1; the horizontal distance between the through hole of the expansion valve and the through hole of the water inlet pipe of the heater is 45 mm.
[0023] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. An HVAC assembly with an integrated expansion valve and a heater, characterized in that: include: Expansion valve, heater and sealing structure; The heater comprises a water inlet pipe and a water outlet pipe; The sealing structure is provided with an expansion valve through hole, a water inlet pipe through hole and a water outlet pipe through hole.
2. The HVAC assembly according to claim 1, characterized in that: The sealing structure adopts a molded sponge.
3. The HVAC assembly according to claim 2, characterized in that: The water inlet pipe through hole and the water outlet pipe through hole are perpendicular to the same plane.
4. The HVAC assembly according to claim 3, characterized in that: On the surface, a horizontal distance between the expansion valve through hole and the water inlet pipe through hole and the water outlet pipe through hole is less than 50 mm.
5. The HVAC assembly according to claim 3, characterized in that: The horizontal distance between the through hole of the expansion valve and the through hole of the water inlet pipe of the heater is 45 mm.
6. The HVAC assembly according to claim 2, characterized in that: The front panel metal is provided with through holes matching the contour of the molded sponge and is fitted with the molded sponge.
7. The HVAC assembly according to claim 6, characterized in that: The sealing of the front panel metal is achieved by maintaining an overlap of at least 15 mm between the molded sponge and the front panel metal.
8. The HVAC assembly according to claim 2, characterized in that: The water inlet pipe, the water outlet pipe, the expansion valve and the molded sponge are tightly fitted.