CN-224210870-U - PTC mounting structure for new energy automobile air conditioner

Abstract

The utility model discloses a PTC mounting structure for a new energy automobile air conditioner and the technical field of automobile air conditioners, and the PTC mounting structure comprises a left shell, a right shell, a PTC heater, a lower shell, a cover plate and the like. The left shell is matched with the right shell to form an air conditioner box body, the PTC heater is arranged in the box body, the bottom of the PTC heater is matched with the lower shell through a locating pin and fixed through screws, and the cover plate is arranged on the side face of the left shell, sealed through a rib groove structure and connected through screws. The structure realizes accurate positioning, stable fixation and reliable sealing of the PTC through the modularized design, supports the PTC to be rapidly disassembled under the condition of not disassembling the air conditioner assembly and the instrument desk, is more suitable for maintenance and replacement, and improves the assembly efficiency and the maintenance convenience. According to the utility model, the connection structure between the PTC heater and the air conditioner box body is optimized into a modularized structure consisting of the left shell, the right shell, the lower shell, the cover plate, the positioning pins and the like, so that the number of parts is effectively reduced, and the assembly process is simplified.

Inventors

• HU QU
• FAN HAIPENG
• ZHAO YANMEI
• LI XINJIE
• LI XIA
• Shang Zun
• CUI HOUMING
• ZHU XIAOBIN

Assignees

• 豫新汽车热管理科技有限公司

Dates

Publication Date

20260508

Application Date

20250716

Claims (5)

1. 1. A PTC mounting structure for a new energy automobile air conditioner comprises a right shell (1), a left shell (2) and a PTC heater (5), and is characterized in that the left shell (2) and the right shell (1) are matched to form an air conditioner box body, the left shell and the right shell are fixed through screws, the PTC heater (5) is arranged in the air conditioner box body, a lower shell (4) is arranged below the PTC heater (5), an end locating pin (10) is arranged at the rear end of the lower shell (4), the end locating pin (10) corresponds to a hole in the shell of the PTC heater (5), one side of the end locating pin (10) is provided with a screw hole (11), the screw hole (11) is fixed with the PTC heater (5) through a tapping screw II (7), a cover plate (3) is arranged on the side face of the left shell (2), a sealing rib (8) is arranged on the cover plate (3), a sealing groove (15) is formed by the sealing rib groove sealing structure, and the cover plate (3) and the left shell (2) are fixed through a tapping screw (6).
2. 2. The PTC mounting structure for the air conditioner of the new energy automobile according to claim 1, wherein a tail positioning pin (12) is arranged at the tail of the lower shell (4).
3. 3. The PTC mounting structure for the air conditioner of the new energy automobile is characterized in that sealing radiating ribs (14) are arranged on the corresponding surfaces of the cover plate (3) and the PTC heater (5), arc-shaped limiting blocks (13) are arranged at one end of the cover plate (3), two limiting grooves formed between the arc-shaped limiting blocks (13) are clamped on the PTC heater (5), flange screw holes (9) are formed in the periphery of the cover plate (3), and self-tapping screws (6) penetrate through the flange screw holes (9) and are fixedly connected with the air conditioner box body and the lower shell (4).
4. 4. The PTC installation structure for the air conditioner of the new energy automobile according to claim 1 is characterized in that at least two sealing radiating ribs (14) are arranged at the upper end of the cover plate (3) and are arranged at equal intervals.
5. 5. The PTC mounting structure for a new energy automobile air conditioner of claim 1, wherein the tapping screw I (6) and the tapping screw II (7) are respectively provided with four.

Description

PTC mounting structure for new energy automobile air conditioner Technical Field The utility model relates to the technical field of installation of PTC heaters of automobile air conditioners, in particular to a PTC installation structure for an air conditioner of a new energy automobile. Background With the rapid development of new energy automobiles, an air conditioning system of the new energy automobile gradually heats and evolves from traditional engine waste heat heating to an integrated air heating system or a heat pump system. PTC (Positive Temperature Coefficient ) heater has been widely used for heating air conditioner or auxiliary heating of new energy automobile because of its advantages of high heating efficiency, good safety, and quick response speed. In the prior art, PTC heaters are typically installed inside an air conditioning case for achieving auxiliary heating of air. However, the lower space of the instrument desk of the new energy automobile is generally compact, and in order to meet the requirements of light weight and structural integration of the whole automobile, the installation mode between the PTC heater and the air conditioner box body must be compatible with the following aspects of compact structure, reliable sealing, maintenance accessibility and ensuring that the PTC heater module is required to be conveniently positioned and fixed and ensure assembly consistency in the process of final assembly of factories. However, the existing PTC heater mounting structure generally has the following technical problems: 1. the sealing mode relies on foam or adhesive tape, the sealing stability is poor, the problems of ageing, loosening and the like are easy to occur due to thermal expansion and cold contraction or long-time compression, 2, the assembly position depends on manual adjustment and positioning, and the consistency is poor and the working time is long due to the lack of an effective guiding or limiting structure, 3, a plurality of PTC heaters are arranged at the middle part or the back part of an air conditioning box body, so that an instrument board, an air conditioning box assembly and the like are required to be disassembled during maintenance, the structure is complex, the number of parts is large, and the assembly difficulty and the system weight are increased. In summary, the existing PTC installation structure for the air conditioner of the new energy automobile has the defects of complex installation, poor sealing performance, inconvenient maintenance and the like, and a novel PTC heater installation structure which has the advantages of simplified structure, reliable positioning, convenient disassembly and assembly and effective sealing is needed to meet the increasingly improved space utilization and maintenance convenience requirements of the new energy automobile. Disclosure of utility model The utility model aims to overcome the existing defects, and provides a PTC mounting structure for a new energy automobile air conditioner, which optimizes a connection structure between a PTC heater and an air conditioner box body into a modularized structure consisting of a left shell, a right shell, a lower shell, a cover plate, positioning pins and the like, so that the number of parts is effectively reduced, the assembly process is simplified, the lower shell and the PTC heater are matched by adopting a multi-point positioning pin, the mounting position is ensured to be accurate, the manual correction is avoided, the assembly consistency and the assembly efficiency are improved, and the problems in the background technology can be effectively solved. The PTC mounting structure for the air conditioner of the new energy automobile comprises a right shell, a left shell and a PTC heater, wherein the left shell is matched with the right shell to form an air conditioner box body, the air conditioner box body and the PTC heater are fixed through screws, the air conditioner box body mainly comprises two shells, assembly is convenient, meanwhile, the number of parts is reduced, the PTC heater is arranged in the air conditioner box body, a lower shell is arranged below the PTC heater, the lower shell not only plays a role in protecting the PTC heater, but also plays a role in sealing the air conditioner box body, an end locating pin is arranged at the rear end of the lower shell, corresponds to a hole in the PTC heater shell, one side of the end locating pin is provided with a screw hole, the screw hole is fixed with the PTC heater through a self-tapping screw II, the end locating pin is used for locating the PTC heater, a cover plate is arranged on the side face of the left shell, a sealing rib is arranged on the cover plate, a sealing groove is formed by the sealing rib and the sealing groove, the cover plate and the left shell are fixed through the self-tapping screw II, the strength of the air conditioner box body is further improved, and the fixing strength of the air conditi