Motor cooling structure of air compressor for hydrogen fuel cell vehicle
By incorporating a water channel structure into the motor housing and end cap of the air compressor for hydrogen fuel cell vehicles, the problem of poor heat dissipation in the motor bearings was solved, achieving the effects of cost reduction and improved reliability.
Patent Information
- Application Number
- CN202520040931.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-08
AI Technical Summary
The poor heat dissipation of bearings in the air compressor motors of existing hydrogen fuel cell vehicles leads to the selection of high-cost bearings, which increases the overall cost of the motor drive components.
The coolant is cooled by opening water channels in the motor housing and end cover respectively. The coolant is cooled by circulating around the motor bearing end through these water channels. The design is simple and low cost.
This effectively improves the heat dissipation of the motor bearings, reduces the overall cost of the motor, and enhances the reliability of the motor.
Smart Images
Figure CN223729560U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to air compressor motor structure technical field, especially a kind of motor cooling structure of air compressor for hydrogen fuel cell car. BACKGROUND
[0002] Hydrogen fuel cell vehicle is the clean energy that realizes zero emission in application link, with significant advantages, such as environmental protection, fast hydrogenation and long endurance mileage etc.Characteristics.So more and more automobile manufacturers begin to invest in the research and development of hydrogen fuel cell vehicle.
[0003] Air compressor is one of the key components of hydrogen fuel cell vehicle, and its motor pursues high power density, lightweight, high reliability and low cost, which has far-reaching significance for building electric vehicle industry with hydrogen fuel cell and electronic power driving technology as core.
[0004] At present, the motor used by air compressor in this field is high-speed motor (speed is above 10000 revolutions), so the motor heat dissipation requirement is very high, and because the heat dissipation effect of traditional motor structure bearing is not good, in order to improve the service life of bearing, only high-cost bearing can be selected, so that the cost of the motor driving part as a whole is higher. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a kind of motor cooling structure of air compressor for hydrogen fuel cell car, effectively heat-dissipating motor driving end bearing, reducing cost, improving motor reliability.
[0006] To solve the above technical problems, the utility model provides a kind of motor cooling structure of air compressor for hydrogen fuel cell car, including motor shell, motor end cover and end cover cover plate connected in sequence;
[0007] Water inlet nozzle and water outlet nozzle are respectively arranged on the motor end cover;
[0008] End cover water channel is arranged in the motor end cover, and shell water channel is arranged in the motor shell side wall;
[0009] The water inlet nozzle is communicated with the shell water channel, and the water outlet nozzle is communicated with the end cover water channel;And the shell water channel and the end cover water channel are communicated with each other;
[0010] Cooling liquid enters from the water inlet nozzle, and flows out from the water outlet nozzle after passing through the shell water channel and the end cover water channel in sequence.
[0011] Preferably, the shell water channel is arranged around the motor shell side wall, and the cooling liquid flows annularly in the shell water channel.
[0012] Preferably, the end cover water channel is arranged in the motor end cover, surrounding the bearing end of the motor, and the cooling liquid flows in the end cover water channel surrounding the bearing end.
[0013] Preferably, the water inlet nozzle is connected with the shell water channel through a first transition port, so that the cooling liquid enters the shell water channel through the first transition port.
[0014] Preferably, a first sealing ring is arranged at the first transition port, and the first transition port is sealed by the first sealing ring.
[0015] Preferably, the shell water channel is connected with the end cover water channel through a second transition port, so that the cooling liquid enters the end cover water channel through the second transition port.
[0016] Preferably, a partition plate is arranged in the end cover water channel, and the partition plate is between the water outlet nozzle and the second transition port, so that the cooling liquid flows out of the water outlet nozzle after surrounding the bearing end of the motor.
[0017] Preferably, the end cover cover plate is embeddedly installed in the motor end cover and is fixed by a locking piece.
[0018] Preferably, the joint between the motor shell and the motor end cover is sealed and connected by a second sealing ring.
[0019] Preferably, the joint between the motor end cover and the end cover cover plate is sealed and connected by a third sealing ring.
[0020] Compared with the prior art, the motor cooling structure of the air compressor for the hydrogen fuel cell vehicle has the following beneficial effects:
[0021] The motor cooling structure of the air compressor for the hydrogen fuel cell vehicle has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 is a structure schematic diagram of a first view angle of the motor cooling structure of the air compressor for the hydrogen fuel cell vehicle provided by the utility model;
[0023] Figure 2 is a structure schematic diagram of a second view angle of the motor cooling structure of the air compressor for the hydrogen fuel cell vehicle provided by the utility model;
[0024] Figure 3 is a front view of the motor cooling structure of the air compressor for the hydrogen fuel cell vehicle provided by the utility model;
[0025] Figure 4 is a side view of the motor cooling structure of the air compressor for the hydrogen fuel cell vehicle provided by the utility model;
[0026] Figure 5 is a sectional view of the motor cooling structure F-F direction of the air compressor for the hydrogen fuel cell vehicle provided by the utility model;
[0027] Figure 6 is a sectional view of the motor cooling structure E-E direction of the air compressor for the hydrogen fuel cell vehicle provided by the utility model.
[0028] In the figure: 1, motor housing; 2, motor end cover; 3, end cover cover plate; 4, water inlet nozzle; 5, water outlet nozzle; 6, first transition port; 7, first sealing ring; 8, second transition port; 9, partition plate; 10, locking piece; 11, second sealing ring; 12, third sealing ring; 100, end cover water channel; 200, housing water channel; 300, bearing end. DETAILED DESCRIPTION
[0029] The utility model will be made further detailed description in combination with the drawings and specific embodiments. According to the following description and claims, the advantages and features of the utility model will be more clear. It should be noted that the drawings are all very simplified and all use non-precise scale, only to facilitate, clear and assist the purpose of describing the utility model embodiments.
[0030] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.
[0031] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication, for ordinary skilled in the art, the above-mentioned term can be understood by concrete case concrete meaning in the utility model. Embodiment
[0032] The utility model provides a kind of air compressor's motor cooling structure for hydrogen fuel cell car, please refer to Figures 1-6 Including motor casing 1, motor end cover 2 and end cover cover plate 3 connected in sequence, water inlet nozzle 4 and water outlet nozzle 5 are respectively provided on the motor end cover 2, end cover water channel 100 is opened in the motor end cover 2, and shell water channel 200 is opened in the side wall of motor casing 1;The water inlet nozzle 4 is communicated with the shell water channel 200, and the water outlet nozzle 5 is communicated with the end cover water channel 100;And the shell water channel 200 and the end cover water channel 100 are communicated with each other;Cooling liquid enters from the water inlet nozzle 4, and flows out from the water outlet nozzle 5 after sequentially passing through the shell water channel 200 and the end cover water channel 100.
[0033] Specifically, as shown in Figure 6 The shell water channel 200 is opened around the side wall of the motor casing 1, and the cooling liquid annularly flows in the shell water channel 200.
[0034] As shown in Figure 5 The end cover water channel 100 is opened in the motor end cover 2, and surrounds the bearing end 300 of motor, and the cooling liquid flows around the bearing end 300 in the end cover water channel 100.
[0035] Further, the water inlet nozzle 4 is communicated with the shell water channel 200 through the first transition port 6, so that the cooling liquid enters the shell water channel 200 through the first transition port 6;And first sealing ring 7 is arranged at the first transition port 6, and the sealing of the first transition port 6 is realized through the first sealing ring 7.
[0036] Further, the shell water channel 200 and the end cover water channel 100 are communicated through the second transition port 8, so that the cooling liquid enters the end cover water channel 100 through the second transition port 8.
[0037] And the end cover water channel 100 is provided with a partition plate 9, and the partition plate 9 is between the water outlet nozzle 5 and the second transition port 8, so that the cooling liquid flows out from the water outlet nozzle 5 after one circle around the bearing end 300 of motor.
[0038] Further, as shown in Figure 4 The end cover cover plate 3 is embeddedly installed in the motor end cover 2, and is fixed by the locking part 10.
[0039] Further, as shown in Figure 6 The joint of the motor shell 1 and the motor end cover 2 is sealed and connected by the second sealing ring 11.
[0040] The joint of the motor end cover 2 and the end cover cover plate 3 is sealed and connected by the third sealing ring 12.
[0041] The motor cooling structure of the air compressor for the hydrogen fuel cell vehicle relates to the technical field of air compressors, and discloses a motor cooling structure of an air compressor for a hydrogen fuel cell vehicle.
[0042] The above description is only a description of the preferred embodiments of the utility model, and does not limit the scope of the utility model in any way, and any change or modification made by the ordinary skilled in the art according to the above disclosure is within the protection scope of the claims.
Claims
1. A motor cooling structure for an air compressor used in a hydrogen fuel cell vehicle, characterized in that, The motor shell (1), the motor end cover (2) and the end cover cover plate (3) are sequentially connected. The motor end cover (2) is respectively provided with a water inlet nozzle (4) and a water outlet nozzle (5). The end cover water channel (100) is arranged in the motor end cover (2), and the shell water channel (200) is arranged in the side wall of the motor shell (1). The water inlet nozzle (4) is in communication with the shell water channel (200), and the water outlet nozzle (5) is in communication with the end cover water channel (100). The cooling liquid enters the water inlet nozzle (4), sequentially passes through the shell water channel (200) and the end cover water channel (100), and then flows out from the water outlet nozzle (5).
2. A motor cooling structure for an air compressor of a hydrogen fuel cell vehicle according to claim 1, characterized by The shell water channel (200) is arranged around the side wall of the motor shell (1), and the cooling liquid flows in the shell water channel (200) in a ring shape.
3. The motor cooling structure of an air compressor for a hydrogen fuel cell vehicle according to claim 1, characterized by The end cover water channel (100) is arranged in the motor end cover (2) and surrounds the bearing end (300) of the motor, and the cooling liquid flows around the bearing end (300) in the end cover water channel (100).
4. The motor cooling structure of an air compressor for a hydrogen fuel cell vehicle according to claim 1, characterized by The water inlet nozzle (4) is in communication with the shell water channel (200) through the first transition port (6), so that the cooling liquid enters the shell water channel (200) through the first transition port (6).
5. A motor cooling structure for an air compressor of a hydrogen fuel cell vehicle according to claim 4, characterized by The first sealing ring (7) is arranged at the first transition port (6), and the first transition port (6) is sealed by the first sealing ring (7).
6. A motor cooling structure for an air compressor of a hydrogen fuel cell vehicle according to claim 1, characterized by The shell water channel (200) is in communication with the end cover water channel (100) through the second transition port (8), so that the cooling liquid enters the end cover water channel (100) through the second transition port (8).
7. A motor cooling structure for an air compressor of a hydrogen fuel cell vehicle according to claim 6, characterized by The end cover water channel (100) is provided with a partition plate (9), and the partition plate (9) is between the water outlet nozzle (5) and the second transition port (8), so that the cooling liquid flows out from the water outlet nozzle (5) after flowing around the bearing end (300) of the motor.
8. A motor cooling structure of an air compressor for a hydrogen fuel cell vehicle according to claim 1, characterized by The end cover cover plate (3) is embedded and installed in the motor end cover (2) and is fixed by the locking member (10).
9. A motor cooling structure of an air compressor for a hydrogen fuel cell vehicle according to claim 1, characterized by The joint of the motor shell (1) and the motor end cover (2) is sealed and connected by the second sealing ring (11).
10. The motor cooling structure of an air compressor for a hydrogen fuel cell vehicle according to claim 1, wherein The joint of the motor end cover (2) and the end cover cover plate (3) is sealed and connected by the third sealing ring (12).