A new energy vehicle heat dissipation fan

Abstract

The application relates to a new energy automobile heat dissipation fan, which comprises a mounting frame, a fan blade rotatably arranged in the mounting frame and a motor for driving the fan blade to rotate, the mounting frame comprises a mounting frame body, a through slot for mounting the fan blade is formed in the mounting frame body, a motor seat for mounting the motor is arranged in the through slot, the motor seat comprises a motor seat body and a plurality of connecting ribs connected with the inner wall of the through slot, the connecting ribs are integrally formed with the motor seat body, the motor seat body is annular, a connecting groove for mounting a motor connecting piece is arranged on the end face of the side of the motor seat body which is not connected with the fan blade, a lock column integrally formed with the connecting groove is arranged on the connecting groove, a retreat-preventing tooth is arranged on the column body of the lock column, the connecting piece is sleeved on the lock column, and the installation of the motor in the motor seat is realized through the cooperation of the retreat-preventing spring piece and the retreat-preventing tooth.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling fans for new energy vehicles, and in particular to a cooling fan for new energy vehicles. Background Art

[0002] When a new energy vehicle is in use, the battery pack that provides power generates a large amount of heat, which requires a cooling fan to dissipate the heat from the battery pack. Therefore, the cooling fan is an indispensable part of a new energy vehicle. The cooling fan includes a mounting bracket connected to the vehicle body, fan blades placed in the mounting bracket, and a motor that drives the fan blades. Existing cooling fans generally have the following disadvantages: 1. The motor is provided with multiple connecting plates, which are fixed to the mounting bracket by screws and nuts. In the industry, the installation of bolts and nuts is relatively troublesome. When tightening the nuts, the nuts are first screwed onto the screws one by one to ensure that the nuts do not fall off, and then the nuts are tightened step by step. Although this connection method is common, it still has problems that affect assembly efficiency; 2. The mounting bracket is connected to the vehicle body by bolts and nuts. The mounting bracket and the vehicle body are each provided with multiple mounting holes. Due to machining accuracy, it is difficult to ensure that the size between two mounting holes on the mounting bracket is consistent with the size between two mounting holes on the vehicle body, resulting in great effort during the assembly of the bolts and nuts; 3. In order to adjust the wind speed of the cooling fan, an external resistor is often connected to the motor. When the resistor is working, a large amount of heat is generated. The heat cannot be dissipated in time, causing the plastic body near the resistor to age or even melt. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a new energy vehicle cooling fan in view of the above-mentioned deficiencies in the prior art, improve the mounting frame structure, and enhance the practicability of the mounting frame.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A new energy vehicle cooling fan, comprising a mounting frame, fan blades rotatably arranged in the mounting frame, and a motor that drives the fan blades to rotate, characterized in that: the mounting frame comprises a mounting frame body, a through slot for mounting the fan blades is opened on the mounting frame body, a motor seat for mounting the motor is provided in the through slot, the motor seat comprises a motor seat body, a plurality of connecting ribs connected to the inner wall of the through slot, the connecting ribs and the motor seat body are integrally formed, the motor seat body is annular, and a connecting groove for mounting a motor connecting piece is provided on the end face of the side not connected to the fan blades, the connecting groove is provided with a lock column integrally formed therewith, and a back-off tooth is provided on the column body of the lock column, and the connecting piece is sleeved on the lock column and the installation of the motor in the motor seat is realized by the cooperation of the anti-backoff spring sheet and the back-off tooth.

[0005] The present invention with the above-mentioned characteristics: by arranging a lock column in the connecting groove and equipping it with an anti-retraction spring sheet to fix the motor on the mounting frame body, it replaces the screws and nuts. During assembly, it is only necessary to press the connecting plate and the anti-retraction spring sheet onto the lock column in sequence, thereby improving assembly efficiency and reducing production costs.

[0006] A further configuration of the present invention is that the mating surface between the anti-retraction tooth and the anti-retraction spring piece is an inclined surface, the end close to the connecting groove is higher than the end away from the connecting groove, the anti-retraction spring piece includes a spring piece body and a conical retaining ring arranged on the inner circle of the spring piece body, and the conical retaining ring is evenly distributed with dividing grooves, which evenly divide the conical retaining ring into multiple sections.

[0007] The present invention with the above-mentioned characteristics: the inclined surface of the anti-retraction tooth is set to be higher than the end away from the connecting groove at the end close to the connecting groove, which makes it convenient to press the connecting plate and the anti-retraction spring piece into the lock column while preventing the connecting plate from falling off during the assembly process. The upper end of the conical retaining ring set on the anti-retraction spring piece is against the lower end surface of the inclined surface of the anti-retraction tooth to play a limiting role.

[0008] A further configuration of the present invention is that: a plurality of mounting seats connected to the vehicle body are provided on the peripheral side of the mounting frame body, the mounting seats and the mounting frame body are integrally formed, the mounting seat includes a platform connected to the mounting frame body and reinforcing ribs arranged on both sides of the platform and connected to the mounting frame body, the reinforcing ribs and the platform form an installation cavity for placing the nut, the platform is provided with a waist-shaped groove for the bolt to pass through, the side of the platform close to the outside world is provided with a first limit block for limiting the installation position of the nut, and the reinforcing rib is provided in the second limit block for limiting the placement height of the nut.

[0009] The present invention has the above-mentioned characteristics: the mounting frame is connected to the vehicle body through bolts and nuts, and a waist-shaped groove is provided on the mounting seat of the mounting frame. When the bolt passes through the waist-shaped groove to connect the mounting frame and the vehicle body, it can be adjusted by slightly moving in the waist-shaped groove according to the actual size, thereby improving the practicality of the mounting frame and reducing the difficulty of assembly; the first limit block is provided at one end of the waist-shaped groove to limit the moving stroke of the nut in the mounting seat, and the second limit block limits the placement height of the nut in the mounting seat, thereby improving the installation stability of the nut.

[0010] The present invention is further configured as follows: a resistor mounting slot for mounting a resistor is provided on the mounting frame body, a resistor fixing seat for fixing the resistor is provided in the resistor mounting slot, and a plurality of heat-conducting aluminum rods are provided at both ends of the resistor.

[0011] The present invention has the above characteristics: heat-conducting aluminum rods are set at both ends of the resistor. The aluminum material has good thermal conductivity, and the heat generated by the resistor during operation is dissipated through the heat-conducting aluminum rods to prevent plastic aging caused by heat accumulation.

[0012] A further configuration of the present invention is that: the mounting frame body is provided with a mounting foot, the mounting foot is provided with a shock-absorbing block, and the shock-absorbing block and the mounting foot are integrally formed.

[0013] The present invention with the above characteristics: the mounting foot is encapsulated with rubber after injection molding, so that the plastic body and the rubber body are combined into a whole. This one-piece molding process improves the connection stability between the shock-absorbing block and the mounting foot, improves the shock-proof and noise-absorbing effect of the shock-absorbing block, and reduces the assembly time of the shock-absorbing block.

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the front structure of an embodiment of the present invention.

[0016] Figure 2 Schematic diagram of the back structure of an embodiment of the present invention.

[0017] Figure 3 Schematic diagram of the structure of the anti-recoil spring piece according to an embodiment of the present invention.

[0018] Figure 4 This is a partial schematic diagram of a mounting base according to an embodiment of the present invention.

[0019] Figure 5 This is a partial schematic diagram of a connecting groove according to an embodiment of the present invention. DETAILED DESCRIPTION

[0020] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

[0021] like Figure 1-5 The shown new energy vehicle cooling fan includes a mounting frame 1, fan blades 2 rotatably arranged in the mounting frame 1, and a motor 3 for driving the fan blades 2 to rotate. The mounting frame 1 includes a mounting frame body 11, a through slot 12 for mounting the fan blades 2 is opened on the mounting frame body 11, a motor seat 14 for mounting the motor 3 is provided in the through slot 12, a plurality of mounting seats 15 connected to the vehicle body are provided on the circumferential side of the mounting frame body 11, a resistor mounting groove 16 for mounting the resistor 4 is provided on one end face of the mounting frame body 11, and a mounting foot 17 connected to the vehicle body is provided on the other end face of the mounting frame body 11.

[0022] The motor base 14 includes a motor base body 141, a plurality of connecting ribs 142 connected to the inner wall of the through groove 12, the connecting ribs 142 and the motor base body 141 are integrally formed, the motor base body 141 is annular, and a connecting groove 143 for mounting the motor connecting piece 31 is provided on the end face of the side not connected to the fan blade 2, and the connecting groove 143 is provided with a lock column 144 integrally formed therewith, and a back-stop tooth 145 is provided on the column body of the lock column 144. The connecting piece 31 is sleeved on the lock column 144 and the motor is installed in the motor base through the cooperation of the anti-backward spring piece 5 and the back-stop tooth 145. The mating surface of the back-stop tooth 145 and the anti-backward spring piece 5 is an inclined surface, and the end close to the connecting groove 143 is higher than the far At one end away from the connecting groove 143, the anti-recoil spring piece 5 includes a spring piece body 51 and a conical retaining ring 52 arranged on the inner ring of the spring piece body 51. The conical retaining ring 52 is evenly distributed with dividing grooves 521. The dividing grooves 521 evenly divide the conical retaining ring 52 into multiple sections. In this embodiment, three connecting grooves are provided, which correspond to the motor with three connecting pieces. During assembly, the three connecting pieces provided on the motor are first pressed into the lock column at the same time. Due to the setting of the inclined surface on the anti-recoil tooth, the connecting piece can be smoothly pressed into the lock column and adhere to the bottom of the connecting groove and will not easily detach from the lock column. Then the anti-recoil spring piece is pressed into the lock column in turn, and the conical retaining ring of the anti-recoil spring piece is against the anti-recoil tooth to fix the connecting piece in the connecting groove.

[0023] The mounting seat 15 is integrally formed with the mounting frame body 11. The mounting seat 15 includes a platform 151 connected to the mounting frame body 11 and reinforcing ribs 152 arranged on both sides of the platform 151 and connected to the mounting frame body 11. The reinforcing ribs 152 and the platform 151 form a mounting cavity for placing the nut. The platform 151 is provided with a waist-shaped groove 153 for the bolt to pass through. The side of the platform 151 close to the outside is provided with a first limit block 154 for limiting the installation position of the nut, and the reinforcing rib 152 is provided with a second limit block 155 for limiting the placement height of the nut. During assembly, the mounting hole on the vehicle body corresponds to the waist-shaped groove, and the two are connected by bolts. The bolts can be adjusted accordingly in the waist-shaped groove.

[0024] A resistor fixing seat 161 for fixing the resistor is provided in the resistor installation groove 16. A plurality of heat-conducting aluminum rods 6 are provided at both ends of the resistor 4. The heat generated by the resistor working is transferred out by the heat-conducting aluminum rods to increase heat dissipation.

[0025] The mounting foot 17 is provided with a shock absorbing block 7, which is integrally formed with the mounting foot 17. The mounting frame is injection-molded and then rubber-coated, so that the mounting frame made of plastic and the shock absorbing block made of rubber are combined into a whole.

Claims

1. A new energy vehicle cooling fan, comprising a mounting frame, fan blades rotatably disposed within the mounting frame, and a motor for driving the fan blades to rotate, characterized in that: The mounting bracket includes a mounting bracket body, a through slot for mounting fan blades is opened on the mounting bracket body, a motor seat for mounting the motor is provided in the through slot, the motor seat includes a motor seat body, a plurality of connecting ribs connected to the inner wall of the through slot, the connecting ribs and the motor seat body are integrally formed, the motor seat body is annular, and a connecting slot for mounting the motor connecting piece is provided on the end face on the side not connected to the fan blades, the connecting slot is provided with a lock column integrally formed therewith, and a back-stop tooth is provided on the column body of the lock column, the connecting piece is sleeved on the lock column and the motor is installed in the motor seat through the cooperation of the anti-back-stop spring piece and the back-stop tooth, the mating surface of the back-stop tooth and the anti-back-stop spring piece is an inclined surface, and the end close to the connecting slot is higher than the end away from the connecting slot, and the anti-back-stop spring piece includes a spring piece body and a cone arranged on the inner circle of the spring piece body. shaped snap ring, the conical snap ring is evenly distributed with dividing grooves, the dividing grooves evenly divide the conical snap ring into multiple sections, a plurality of mounting seats connected to the vehicle body are provided on the peripheral side of the mounting frame body, the mounting seat and the mounting frame body are integrally formed, the mounting seat includes a platform connected to the mounting frame body and reinforcing ribs arranged on both sides of the platform and connected to the mounting frame body, the reinforcing ribs and the platform form an installation cavity for placing the nut, a waist-shaped groove for passing the bolt is provided on the platform, a first limit block for limiting the installation position of the nut is provided on the side of the platform close to the outside world, a second limit block for limiting the placement height of the nut is provided in the reinforcing rib, a resistor installation groove for installing the resistor is provided on the mounting frame body, a resistor fixing seat for fixing the resistor is provided in the resistor installation groove, and a plurality of thermal conductive aluminum rods are provided at both ends of the resistor.

2. A new energy vehicle cooling fan according to claim 1, characterized in that: The mounting frame body is provided with a mounting foot, the mounting foot is provided with a shock-absorbing block, and the shock-absorbing block and the mounting foot are integrally formed.

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