An electric heater structure for an electric vehicle air conditioner

Abstract

This utility model relates to the field of electric heater technology, specifically an electric heater structure for an electric vehicle air conditioner. The electric heater structure includes an electric heater housing, an installation box housed inside the housing, a connecting frame on the top of the installation box, a first sealing gasket on the top of the electric heater housing, and the connecting frame on top of the first sealing gasket. Through the cooperation of a second sealing ring and the first sealing gasket, the installation box can isolate the electric heating element and the circuit board in layers, ensuring that the heating fluid in contact with the electric heating element does not leak during operation, thus guaranteeing the reliability of the device. After unscrewing the bolts, the cover plate can be moved upwards for disassembly, and then the connecting frame and the first sealing gasket can be moved upwards to separate from the electric heater housing, achieving the effect of quick disassembly and maintenance of the electric heater.

Description

Technical Field

[0001] This utility model relates to the field of electric heater technology, specifically an electric heater structure for an electric vehicle air conditioner. Background Technology

[0002] The electric heater used in electric vehicle air conditioning has cover plates fixed to its upper and lower sides by bolts. The upper cover plate seals and protects the circuit board, while the lower cover plate seals and protects the heating element. Therefore, when disassembling and repairing the electric heater, both sets of cover plates need to be removed first. However, the cover plates are fixed by multiple sets of bolts, so removing both sets of cover plates reduces the efficiency of disassembling and repairing the electric heater. In view of the above situation, technical innovation is carried out on the existing electric heater structure of electric vehicle air conditioning. Utility Model Content

[0003] The purpose of this invention is to provide an electric heater structure for an electric vehicle air conditioner to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an electric heater structure for an electric vehicle air conditioner, comprising:

[0005] An electric heater housing, inside which an installation box is placed, a connecting frame is provided on the top of the installation box, a first sealing gasket is placed on the top of the electric heater housing, the connecting frame is placed on top of the first sealing gasket, a second sealing gasket is placed on top of the connecting frame, and a cover plate is placed on top of the second sealing gasket.

[0006] Preferably, the top of the cover plate is uniformly provided with a clearance opening, and the inner sidewall of the clearance opening is provided with a first sealing ring.

[0007] Preferably, the outer side wall of the mounting box is provided with a mounting groove, and a second sealing ring is provided in the mounting groove. The outer side wall of the second sealing ring is in contact with the inner side wall of the electric heater housing.

[0008] Preferably, the top of the cover plate is uniformly provided with a first through hole, and the top of the second sealing gasket, the connecting frame and the first sealing gasket are uniformly provided with a second through hole.

[0009] Preferably, the top of the electric heater housing is provided with threaded holes evenly spaced, and the threaded holes are aligned with the first through hole and the second through hole.

[0010] Preferably, bolts are provided in the first through hole and the second through hole, and the bolts are screwed into the threaded holes.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] In this invention, the cooperation between the second sealing ring and the first sealing gasket allows the mounting box to separate the electric heating element and the circuit board into layers, thereby ensuring that the heating liquid in contact with the electric heating element will not leak out when the electric heater is working, thus ensuring the reliability of the device.

[0013] After unscrewing the bolts, the cover plate can be moved upwards to remove it. Then, the connecting frame and the first sealing gasket can be moved upwards to separate them from the electric heater housing, thus achieving the effect of quickly disassembling and repairing the electric heater. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the electric heater structure of an electric vehicle air conditioner according to the present invention;

[0015] Figure 2 This is a left-side view of the electric heater structure of an electric vehicle air conditioner according to the present invention;

[0016] Figure 3 This is a front sectional view of the electric heater structure of an electric vehicle air conditioner according to the present invention.

[0017] In the figure: 1. Electric heater housing; 11. Cover plate; 12. Bolt; 13. First sealing ring; 14. Connecting frame; 15. First sealing gasket; 16. Second sealing gasket; 2. Mounting box; 21. Second sealing ring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-3An electric heater structure for an electric vehicle air conditioner includes an electric heater housing 1, an installation box 2 housed inside the electric heater housing 1, a connecting frame 14 fixedly mounted on the top of the installation box 2, a first sealing gasket 15 mounted on the top of the electric heater housing 1, the connecting frame 14 mounted on top of the first sealing gasket 15, a second sealing gasket 16 mounted on top of the connecting frame 14, and a cover plate 11 mounted on top of the second sealing gasket 16. The top of the cover plate 11 has evenly spaced clearance openings, and a first sealing ring 13 is fixedly mounted on the inner wall of the clearance openings. The electric heater... The required circuit board is installed inside the mounting box 2, and the circuit board's terminals are inserted into the first sealing ring 13. Through the cooperation of the first sealing ring 13 and the second sealing gasket 16, the cover plate 11 can shield and protect the circuit board. An installation groove is provided on the outer wall of the mounting box 2, and a second sealing ring 21 is fixedly installed in the groove. The outer wall of the second sealing ring 21 is in contact with the inner wall of the electric heater housing 1. The required electric heating element is installed at the bottom of the inner wall of the electric heater housing 1, positioned below the mounting box 2. The cooperation between the sealing ring 21 and the first sealing gasket 15 allows the mounting box 2 to isolate the electric heating element and the circuit board in layers, thus ensuring that the heating liquid in contact with the electric heating element does not leak out when the electric heater is working, thereby ensuring the reliability of the device. The top of the cover plate 11 has a uniformly distributed first through hole, and the tops of the second sealing gasket 16, connecting frame 14, and first sealing gasket 15 have uniformly distributed second through holes. The top of the electric heater housing 1 has uniformly distributed threaded holes, which are aligned with the first and second through holes. A bolt 12 is rotatably installed in the second through hole. The bolt 12 is screwed into the threaded hole. The connecting frame 14 can be fixed above the electric heater housing 1 by the bolt 12, so that the mounting box 2 is stable inside the electric heater housing 1. The cover plate 11 can also be fixed on the top of the connecting frame 14, thus forming the complete electric heater housing. After unscrewing the bolt 12, the cover plate 11 can be moved upward to remove it. Then the connecting frame 14 and the first sealing gasket 15 can be moved upward to separate them from the electric heater housing 1, thus achieving the effect of quickly disassembling and repairing the electric heater.

[0020] Working principle: The circuit board required for the electric heater is installed in the mounting box 2, and the wiring terminals of the circuit board are inserted into the first sealing ring 13. Through the cooperation of the first sealing ring 13 and the second sealing gasket 16, the cover plate 11 can shield and protect the circuit board. The electric heating element required for the electric heater is installed at the bottom of the inner side wall of the electric heater housing 1, and is located below the mounting box 2. Through the cooperation of the second sealing ring 21 and the first sealing gasket 15, the mounting box 2 can isolate the electric heating element and the circuit board in layers, thereby ensuring that the heating liquid in contact with the electric heating element will not leak out when the electric heater is working, thus ensuring the reliability of the device. The connecting frame 14 can be fixed to the top of the electric heater housing 1 by the bolt 12, thereby stabilizing the mounting box 2 inside the electric heater housing 1 and fixing the cover plate 11 to the top of the connecting frame 14, thus forming the complete electric heater housing. After unscrewing the bolt 12, the cover plate 11 can be moved upward to remove it, and then the connecting frame 14 and the first sealing gasket 15 can be moved upward to separate them from the electric heater housing 1, thereby achieving the effect of quickly disassembling and repairing the electric heater.

Claims

1. An electric heater structure of an electric automobile air conditioner, characterized by comprising: include: An electric heater housing (1) is provided inside the electric heater housing (1). An installation box (2) is placed inside the installation box (2). A connecting frame (14) is provided on the top of the installation box (2). A first sealing gasket (15) is placed on the top of the electric heater housing (1). The connecting frame (14) is placed on the top of the first sealing gasket (15). A second sealing gasket (16) is placed on the top of the connecting frame (14). A cover plate (11) is placed on the top of the second sealing gasket (16).

2. The electric heater structure of an electric vehicle air conditioner according to claim 1, characterized by: The top of the cover plate (11) is uniformly provided with a clearance opening, and the inner sidewall of the clearance opening is provided with a first sealing ring (13).

3. The electric heater structure of an air conditioner for an electric vehicle according to claim 1, characterized by: The outer side wall of the mounting box (2) is provided with a mounting groove, and a second sealing ring (21) is provided in the mounting groove. The outer side wall of the second sealing ring (21) is in contact with the inner side wall of the electric heater housing (1).

4. The electric heater structure for an electric vehicle air conditioner according to claim 1, characterized in that: The top of the cover plate (11) is uniformly provided with a first through hole, and the top of the second sealing gasket (16), the connecting frame (14) and the first sealing gasket (15) are uniformly provided with a second through hole.

5. The electric heater structure for an electric vehicle air conditioner according to claim 4, characterized in that: The top of the electric heater housing (1) is uniformly provided with threaded holes, which are aligned with the first through hole and the second through hole.

6. The electric heater structure for an electric vehicle air conditioner according to claim 5, characterized in that: Bolts (12) are provided in the first through hole and the second through hole, and the bolts (12) are screwed into the threaded holes.

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