Cooling device for electric motor

Abstract

The present invention relates to the technical field of motor cooling, and specifically to a cooling device for a motor, comprising a mounting seat provided with an air inlet groove, the mounting seat being elastically provided with a limiter extending toward the air inlet groove; a movable plate slidably provided on the mounting seat, an elastic member 2 being provided between the movable plate and the mounting seat, a mounting plate for fixing the motor being provided on the movable plate, a ventilation groove communicating with the air inlet groove being provided on the mounting plate, an arc-shaped guide plate located at the periphery of the motor being rotatably provided on the mounting plate, and a fixing member being provided on the side of the arc-shaped guide plate close to the limiter; and a baffle plate provided on the mounting seat and close to one side of a rotating rod, a push block 1 being provided on the baffle plate to abut against the motor, a movable grille located in the air inlet groove being rotatably provided on the mounting plate, and a transmission assembly being provided on the baffle plate to cooperate with the push block 1 and drive the movable grille to flip. The present invention automatically introduces external wind into the mounting seat to dissipate heat for the motor, does not require additional energy-consuming equipment, is energy-saving and environmentally friendly, and saves installation space.

Description

Technical Field

[0001] The invention relates to the technical field of motor cooling, and in particular to a cooling device for a motor. Background Art

[0002] An electric motor is a device that converts electrical energy into mechanical energy. With the popularization of new energy vehicles, electric motors are needed in cars to achieve power output. However, electric motors generate a lot of heat during operation. It is difficult to effectively dissipate the heat of the motor by relying on the heat dissipation effect of the motor itself, especially in the relatively closed environment inside the vehicle. However, if the high temperature inside the vehicle continues, it will cause problems with other components, and the kinetic energy of the motor itself will also be lost.

[0003] China Patent Network has disclosed a publication number: CN113270966A, and its name is a kind of automobile motor cooling device, including a ventilation pipe, a heat absorption mechanism and a heat dissipation mechanism; the heat absorption mechanism includes a heat absorption plate, which is arranged inside the ventilation pipe and evenly distributed along the circumference of the ventilation pipe, and guide rods are arranged on both sides of the heat absorption plate, and the guide rods are slidably connected to a pressure plate on the side away from the ventilation pipe, and a first spring is arranged between the pressure plate and the guide rods, and a heat dissipation fin is arranged in the middle of the pressure plate; the heat dissipation mechanism is arranged at one end of the ventilation pipe, and is used to drive the gas in the ventilation pipe to move in a directional manner. By arranging the heat absorption plate and the heat dissipation fins that can slide against each other, the device can perform good fixing treatment on motors with different surface structures, and after the fixing is completed, the device realizes active and passive heat dissipation of the motor through the flow of airflow, thereby improving the heat dissipation effect of the motor.

[0004] In the above-mentioned public documents, although different electric motors can be well fixed, additional energy-consuming equipment is required to actively dissipate the heat of the electric motors, which increases energy consumption. At the same time, the auxiliary equipment needs to be driven to open with the electronic equipment and cannot be automatically opened according to actual conditions. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a cooling device for an electric motor, which can effectively solve the problem that the prior art requires energy-consuming equipment to assist in heat dissipation and is not energy-saving and environmentally friendly.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The present invention provides a cooling device for an electric motor, comprising:

[0008] A mounting seat is provided with an air inlet groove, and a limiting member extending toward the air inlet groove is elastically mounted on the mounting seat;

[0009] A movable plate is slidably mounted on the mounting seat, and a second elastic member is provided between the movable plate and the mounting seat, a mounting plate for fixing the motor is provided on the movable plate, and a venting groove connected to the air inlet groove is provided on the mounting plate, an arc-shaped guide plate located at the periphery of the motor is rotatably mounted on the mounting plate, and a fixing member is provided on a side of the arc-shaped guide plate close to the limiting member;

[0010] And a baffle plate is arranged on the mounting seat and close to one side of the rotating rod, the baffle plate is provided with a push block 1 that sticks to the motor, a movable grille located in the air intake groove is rotatably mounted on the mounting plate, and the baffle plate is provided with a transmission component that cooperates with the push block 1 and drives the movable grille to flip.

[0011] Furthermore, the limiting member is slidably mounted on the mounting seat, and an elastic member 1 is provided on the limiting member, and the elastic member 1 is used to always push the limiting member to extend out of the mounting seat.

[0012] Furthermore, the limiting member is provided with a triangular boss extending toward the mounting plate, and when the mounting plate follows the movable plate to descend below the triangular boss, the limiting member slides out of the mounting seat and pushes the fixing member to rotate the arc guide plate.

[0013] Furthermore, a plurality of groups of latch teeth are provided on one side of the position-limiting member close to the mounting plate, and corresponding matching grooves are provided on the mounting plate. When the mounting plate descends, the position-limiting member extends out, and the latch teeth match with the matching grooves on the mounting plate.

[0014] Furthermore, the mounting plate and the movable plate are connected by a locking piece, which is composed of a bolt and a threaded barrel that cooperate with each other. The threaded barrel passes through the mounting plate and the movable plate and extends to the mounting seat. The bolt passes through the mounting seat and is threadedly connected to the threaded barrel, and the second elastic member is sleeved on the threaded barrel. When the bolt passes through the mounting seat and is connected to the threaded barrel, the mounting plate and the movable plate are pulled down and the second elastic member is compressed.

[0015] Furthermore, a frustum is provided on the side of the baffle plate close to the motor, a thermal insulation sleeve is provided around the push block 1, and an expansion piece is provided on the side of the push block 1 close to the motor, and the expansion piece is used to deform and squeeze the push block 1 after collision due to heat.

[0016] Furthermore, the transmission assembly includes a push block 2 vertically slidably mounted on the baffle plate and a tooth plate slidably mounted on the mounting seat. Guide slopes are provided at both ends of the push block 2, and a guide groove is provided on the tooth plate. After being squeezed by the push block 1, the push block 2 moves downward and is inserted into the guide groove, thereby driving the tooth plate to move horizontally.

[0017] Furthermore, it also includes a gear, which is arranged on the rotating shaft of the movable grille and is meshedly connected with the toothed plate.

[0018] Furthermore, the mounting plate is provided with a slot that matches the motor. Beneficial Effects

[0019] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects:

[0020] 1. The expansion piece on the push block 1 absorbs the heat expansion of the motor to squeeze the push block 2 downward, and cooperates with the guide groove on the tooth plate to drive the tooth plate to move horizontally. At this time, cooperate with the gear on the movable grille to drive the movable grille to rotate to open the air intake slot and introduce the external wind into the mounting seat, automatically introducing the external wind into the mounting seat to dissipate the heat of the motor, without the need for additional energy-consuming equipment, energy-saving and environmentally friendly;

[0021] Second, the limiter elastically arranged on the mounting seat cooperates with the movable plate. When the movable plate moves to the low position, that is, after the motor is installed, the limiter pops out and pushes the fixing member to drive the arc guide plate to rotate. When the air inlet slot is opened and the external wind is introduced into the mounting seat, the inclined arc guide plate guides the wind to one side of the baffle plate. The cone arranged on the baffle plate guides the wind again and blows it to the motor housing for heat dissipation, thereby fully dissipating the heat of the motor.

[0022] 3. After the motor is fixed on the movable plate and the mounting seat by the cooperation of the mounting plate and the locking piece, the mounting seat can be connected to the automobile frame by the connecting piece. The structure is simple, the operation is convenient, and the installation space is saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure explosion of the present invention;

[0026] Figure 3 It is a partial cross-sectional view of the mounting seat of the present invention;

[0027] Figure 4 It is a cross-sectional view of the connection between the mounting seat and the baffle plate of the present invention;

[0028] Figure 5 It is a schematic diagram of the connection between the push block 1 and the movable grid of the present invention;

[0029] Figure 6 It is a structural schematic diagram of the position limiting member of the present invention;

[0030] Figure 7 It is a schematic diagram of the connection between the motor and the mounting plate of the present invention;

[0031] Figure 8 Schematic diagram of the state change of the arc guide plate of the present invention.

[0032] Figure numerals: 1, mounting seat; 11, limiting member; 111, latching tooth; 112, elastic member 1; 12, air inlet groove; 2, movable plate; 21, mounting plate; 211, ventilation groove; 212, locking member; 213, elastic member 2; 22, arc guide plate; 221, fixing member; 222, rotating rod; 23, baffle plate; 231, cone; 232, push block 1; 233, push block 2; 234, tooth plate; 2341, guide groove; 24, movable grille; 241, gear. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The present invention will be further described below in conjunction with the embodiments. Example

[0035] A cooling device for an electric motor, see attached Figure 1-8 ,include:

[0036] A mounting seat 1 is provided with an air inlet groove 12, the air inlet groove 12 is used to introduce gas into the mounting seat 1, the mounting seat 1 is provided with a mounting hole, the mounting hole is used to connect the mounting seat 1 to the frame of the automobile through a connecting piece, the air inlet groove 12 is provided with two groups and symmetrically distributed on the mounting seat 1, the mounting seat 1 is elastically installed with a limiter 11 extending toward the air inlet groove 12, wherein the limiter 11 is slidably installed on the mounting seat 1, and an elastic member 112 is provided on the limiter 11, the elastic member 112 is used to always push the limiter 11 to extend out of the mounting seat 1, and when the motor is not installed, the limiter 11 extends to the middle of the mounting seat 1 and is located above the air inlet groove 12;

[0037] The movable plate 2 is slidably mounted on the mounting seat 1, and an elastic member 213 is provided between the movable plate 2 and the mounting seat 1. In the initial state, the elastic member 213 presses against the movable plate 2 in a high position. The movable plate 2 is provided with a mounting plate 21 for fixing the motor, and the mounting plate 21 is provided with a venting groove 211 communicating with the air inlet groove 12. The limiting member 11 is provided with a triangular boss extending toward the mounting plate 21. When the movable plate 2 is in a high position, the mounting plate 21 presses against the triangular boss on the limiting member 11 to retract it into the mounting seat 1. The mounting plate 21 is provided with a slot that cooperates with the motor. When the motor cooperates with the mounting plate 21 After that, it is locked and fixed by the locking piece 212. At this time, the movable plate 2 is squeezed down by the gravity of the motor. At this time, the movable plate 2 is in the middle position, and the mounting plate 21 cancels partial squeezing of the limit member 11. The limit member 11 extends out of the mounting seat 1 but does not extend completely. When the locking piece 212 is adjusted to pull the mounting plate 21 that fixes the motor and the movable plate 2 is locked with the mounting seat 1, the movable plate 2 is in the low position. When the mounting plate 21 follows the movable plate 2 to drop to the bottom of the triangular boss on the limit member 11, the limit member 11 slides out completely, and the latching tooth 111 arranged on the limit member 11 cooperates with the matching groove on the mounting plate 21.

[0038] Specifically, the mounting plate 21 is connected to the movable plate 2 by a locking member 212, and the locking member 212 is composed of a bolt and a threaded barrel that cooperate with each other. The threaded barrel passes through the mounting plate 21 and the movable plate 2 and extends to the mounting seat 1. The bolt passes through the mounting seat 1 and is threadedly connected to the threaded barrel, and the second elastic member 213 is sleeved on the threaded barrel. When the bolt passes through the mounting seat 1 and is connected to the threaded barrel, the mounting plate 21 and the movable plate 2 are pulled down and the second elastic member 213 is compressed. Among them, a plurality of groups of latch teeth 111 are provided on the side of the limiting member 11 close to the mounting plate 21, and a corresponding matching groove is provided on the mounting plate 21. When the mounting plate 21 is lowered, the limiting member 11 extends out, and the latch teeth 111 cooperate with the matching groove on the mounting plate 21.

[0039] An arc-shaped guide plate 22 located at the periphery of the motor is rotatably mounted on the mounting plate 21. The arc-shaped guide plate 22 is rotatably mounted on the mounting plate 21 through a rotating rod 222, and a fixing piece 221 is provided on the side of the arc-shaped guide plate 22 close to the limiter 11. When the movable plate 2 moves to a low position, the mounting plate 21 follows the movable plate 2 and descends to below the triangular boss on the limiter 11. At this time, the limiter 11 completely slides out of the mounting seat 1, and the triangular boss on the limiter 11 pushes the fixing piece 221 to rotate the arc-shaped guide plate 22, so that the side of the arc-shaped guide plate 22 close to the motor drive shaft is away from the motor housing, and the other side of the arc-shaped guide plate 22 is close to the motor housing, thereby guiding the wind to be poured into one end of the motor and blowing away the heat on the motor;

[0040] And a baffle plate 23 is arranged on the mounting seat 1 and close to the rotating rod 222. The baffle plate 23 is located at the tail of the motor. A push block 232 is provided on the baffle plate 23 to stick to the motor. An expansion piece is provided on the side of the push block 232 close to the motor. The expansion piece is used to deform after collision after being heated to squeeze the push block 232. After the motor heats up, the expansion piece on the push block 232 continues to absorb heat and then expands. A cone 231 is provided on the side of the baffle plate 23 close to the motor. The cone 231 is used to guide wind to the motor, so that the gas blows to the heat dissipation fins around the motor. An insulation sleeve is provided around the push block 232 to prevent the external wind from cooling the expansion piece on the push block 232, thereby preventing To prevent wrong judgment from occurring, a movable grille 24 located in the air inlet groove 12 is rotatably mounted on the mounting plate 21, and torsion springs are arranged on both sides of the movable grille 24, which are used to always keep the movable grille 24 in a horizontal state, and the movable grille 24 is used to open the air inlet groove 12 after rotation and introduce external wind into the mounting seat 1 and blow it toward the arc-shaped guide plate 22, while cooling the arc-shaped guide plate 22, and guiding the wind to the baffle plate 23, and then cooperating with the baffle plate 23 to guide the wind to blow toward the motor to quickly dissipate heat therefrom, and the baffle plate 23 is provided with a transmission assembly that cooperates with a push block 232 and drives the movable grille 24 to flip, and the displacement generated by the push block 232 is converted into a rotational displacement of the movable grille 24 through the transmission assembly.

[0041] Specifically, the transmission assembly includes a push block 233 vertically slidably mounted on the baffle plate 23 and a tooth plate 234 slidably mounted on the mounting seat 1. Guide slopes are provided at both ends of the push block 233, and a guide groove 2341 is provided on the tooth plate 234. The guide slope at the top of the push block 233 cooperates with the push block 1 232, and drives the push block 233 to descend when the push block 1 232 moves. The guide slope at the bottom end of the push block 233 cooperates with the guide groove 2341, and inserts the push block 233 into the guide groove 2341 when the push block 233 descends, thereby driving the tooth plate 234 to move horizontally again. Since the movable grille 24 is rotated to the shaft with a gear 241, and the gear 241 is meshed with the tooth plate 234, when the tooth plate 234 is displaced horizontally, the driving gear 241 drives the movable grille 24 to rotate, opens the air inlet slot 12, and guides the external wind into the mounting seat 1.

[0042] Working principle: After the motor is matched with the mounting plate 21, the mounting plate 21 is set on the movable plate 2 and the mounting seat 1 through the locking piece 212. After locking, the movable plate 2 compresses the elastic piece 213 and drops to a low position. At this time, the mounting plate 21 moves to the bottom of the limit piece 11, and the limit piece 11 is completely extended out of the mounting seat 1. The triangular boss arranged on the limit piece 11 squeezes the fixing piece 221, so that the arc guide plate 22 rotates along the rotating rod 222. One end of the arc guide plate 22 close to the baffle plate 23 is close to the motor, and the other end is away from the motor. At the same time, the latch 111 arranged on the limit piece 11 cooperates with the matching groove on the mounting plate 21 to lock the mounting plate 21 again. Finally, the mounting seat 1 is installed on the automobile frame through the connecting piece to fix and support the motor. When the motor continues to work and generate heat, the expansion piece on the push block 232 is heated until the push block 23 2 is pushed, at this time, the push block 1 232 squeezes the push block 233 to go down, and when the push block 233 goes down, it is inserted into the guide groove 2341 to push the tooth plate 234 to move horizontally, and at this time, the gear 241 arranged on the movable grille 24 cooperates with the tooth plate 234 to drive the movable grille 24 to rotate to open the air inlet slot 12 and introduce the external wind into the mounting seat 1, and at this time, the inclined arc guide plate 22 is cooperated to guide the wind to one side of the baffle plate 23, and the cone 231 arranged on the baffle plate 23 guides the wind again and blows it to the motor housing for heat dissipation, and the thermal insulation sleeve arranged on the baffle plate 23 and wrapping the push block 1 232 can prevent the expansion member on the push block 1 232 from cooling down, thereby preventing the reset of the push block 233 and the abnormal closure of the air inlet slot 12, and only when the motor temperature is reduced and cannot provide enough heat for the expansion member to deform, the movable grille 24 is reset and drives the push block 233 to reset.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. 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. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cooling device for an electric motor, characterized in that: include: A mounting seat (1) provided with an air inlet groove (12), the mounting seat (1) being elastically provided with a limiting member (11) extending toward the air inlet groove (12), the limiting member (11) being slidably mounted on the mounting seat (1), and an elastic member (112) being provided on the limiting member (11), the elastic member (112) being used to always push the limiting member (11) to extend out of the mounting seat (1); A movable plate (2) is slidably mounted on the mounting seat (1), and a second elastic member (213) is provided between the movable plate (2) and the mounting seat (1); a mounting plate (21) for fixing the motor is provided on the movable plate (2), and a ventilation groove (211) communicating with the air inlet groove (12) is provided on the mounting plate (21); an arc-shaped guide plate (22) located at the periphery of the motor is rotatably mounted on the mounting plate (21), and a fixing member (221) is provided on a side of the arc-shaped guide plate (22) close to the limiting member (11), and the limiting member (11) A triangular boss extending toward the mounting plate (21) is provided on the mounting plate. When the mounting plate (21) follows the movable plate (2) to descend to below the triangular boss, the limiting member (11) slides out of the mounting seat (1) and pushes the fixing member (221) to rotate the arc-shaped guide plate (22). A plurality of groups of latch teeth (111) are provided on one side of the limiting member (11) close to the mounting plate (21), and a matching groove is correspondingly provided on the mounting plate (21). When the mounting plate (21) descends, the limiting member (11) extends out, and the latch teeth (111) match with the matching groove on the mounting plate (21); and a baffle plate (23) disposed on the mounting seat (1) and close to the rotating rod (222), the baffle plate (23) being provided with a push block (232) abutting against the motor, a movable grille (24) located in the air inlet groove (12) being rotatably mounted on the mounting plate (21), and a transmission assembly being provided on the baffle plate (23) for cooperating with the push block (232) and driving the movable grille (24) to flip, a frustum (231) being provided on the side of the baffle plate (23) close to the motor, a temperature insulating sleeve being provided around the push block (232), and a temperature insulating sleeve being provided around the push block (232). An expansion member is provided on one side near the motor, and the expansion member is used to deform due to collision after being heated to squeeze the push block 1 (232). The transmission assembly comprises a push block 2 (233) vertically slidably mounted on the baffle plate (23) and a tooth plate (234) slidably mounted on the mounting seat (1). Both ends of the push block 2 (233) are provided with guide slopes, and the tooth plate (234) is provided with a guide groove (2341). After being squeezed by the push block 1 (232), the push block 2 (233) moves downward and is inserted into the guide groove (2341), thereby driving the tooth plate (234) to move horizontally. It also includes a gear (241), which is arranged on the rotating shaft of the movable grille (24) and meshedly connected with the toothed plate (234).

2. The cooling device for an electric motor according to claim 1, characterized in that: The mounting plate (21) and the movable plate (2) are connected via a locking member (212). The locking member (212) is composed of a bolt and a threaded barrel that cooperate with each other. The threaded barrel passes through the mounting plate (21) and the movable plate (2) and extends toward the mounting seat (1). The bolt passes through the mounting seat (1) and is threadedly connected to the threaded barrel. The second elastic member (213) is sleeved on the threaded barrel. When the bolt passes through the mounting seat (1) and is connected to the threaded barrel, the mounting plate (21) and the movable plate (2) are pulled down and the second elastic member (213) is compressed.

3. The cooling device for an electric motor according to claim 1, characterized in that: The mounting plate (21) is provided with a slot that matches the motor.

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