Electric driving device with protective structure and parking space lock

Abstract

The utility model discloses an electric driving device with a protection structure and a parking space lock, the electric driving device with the protection structure comprises a motor, a speed reducer and a cable, the motor and the speed reducer are in transmission connection to form a driving mechanism, and the cable is electrically connected with the motor; the protective cover continuously wraps the outer surface of the driving mechanism in the extending direction of the driving mechanism, and the whole motor, the connecting part of the motor and the speed reducer and part of the speed reducer are hermetically wrapped in the protective cover; the protective cover is provided with a cable outlet corresponding to the cable, the cable partially penetrates out of the cable outlet, and the cable outlet is in sealed connection with the cable. The electric driving device with the protection structure not only can effectively prevent water, dust and electricity, but also is assembled in a parking lock, the protection structure is not easy to damage, and the electric driving device has the advantage of being small in size.

Description

Technical Field

[0001] The utility model relates to the technical field of parking locks, in particular to an electric drive device with a protective structure and a parking lock. Background Art

[0002] With the development of the country and the progress of society, cars are becoming more and more common as a means of transportation. With the increase in the number of cars, parking space resources are tight and supply and demand are unbalanced. In order to strengthen management, some parking places, especially roadside parking spaces, usually install parking locks on the parking spaces. Common parking locks are unmanned and automatically controlled. When there is no car parked, the parking lock is closed and does not affect the normal passage of pedestrians. When a car enters the parking space, the parking lock automatically recognizes and locks to restrict the movement of the car. The owner needs to scan the code to pay, and the parking lock is closed before the car can leave.

[0003] Since the parking lock is equipped with an automatic control system, especially the electric drive system that provides power for the parking lock, it is very important to take protective measures such as waterproof, dustproof, and anti-electricity to avoid damaging the electric drive and affecting the normal use of the parking lock. Generally, the outer surface of the parking lock will be equipped with a protective cover, which will not only increase the size of the parking lock, but also be easily damaged, with poor protection effect, and water, dust, etc. can easily enter the parking lock and damage the electric drive.

[0004] To solve this problem, Chinese patent CN216490275U discloses a brushless motor controller with external protection effect, which wraps a protective cover on the outside of the main housing of the controller to provide dust, water and electricity protection for the brushless motor controller. However, its protective measures are only set on the main housing of the controller, and there is no protective structure for the end cover and other structures connected to the main housing of the controller. Water, dust, etc. can easily enter the main housing of the controller from the connection between the main housing of the controller and the end cover to damage the main housing of the controller. Utility Model Content

[0005] In order to overcome at least one defect of the above-mentioned prior art, the utility model provides an electric drive device with a protective structure, which is not only effectively waterproof, dustproof, and anti-electric, but also assembled in a parking lock, the protective structure is not easily damaged and has the characteristics of small size.

[0006] The technical solution adopted by the utility model to solve the problem is:

[0007] An electric drive device with a protective structure comprises: a motor, a reducer and a cable, wherein the motor and the reducer are drivingly connected to form a driving mechanism, and the cable is electrically connected to the motor;

[0008] It also includes: a protective cover, which is continuously wrapped around the outer surface of the driving mechanism along the extension direction of the driving mechanism, and the entire motor, the connection between the motor and the reducer, and a part of the reducer are sealed and wrapped in the protective cover;

[0009] The protective cover is provided with a wire outlet corresponding to the cable, the cable partially passes through the wire outlet, and the wire outlet and the cable are sealed.

[0010] The electric drive device with a protective structure provided by the utility model is provided with a protective cover wrapped around the outer surface of the drive mechanism, specifically, the protective cover completely wraps the motor, completely wraps the connection between the motor and the reducer, partially wraps the reducer, and partially wraps the cable. Not only is the motor within the protection range of the protective cover, but the connection between the motor and the connected parts, and the ends of the connected parts close to the motor are all within the protection range of the protective cover, preventing water, dust, etc. from entering through the connected parts and damaging the motor, thereby achieving good protection effects such as waterproofing, dustproofing, and anti-electricity on the motor.

[0011] Furthermore, the protective cover is an elastic protective cover.

[0012] Therefore, compared with ordinary non-elastic protective covers, elastic protective covers are easier to install and can tightly wrap the motor, the connection between the motor and the reducer, part of the reducer and part of the cables, so that the protective effect is further improved.

[0013] Furthermore, the reducer and the protective cover are connected by interference fit, and the cable and the cable outlet are connected by interference fit.

[0014] Therefore, the outer diameter of the reducer is larger than the inner diameter of the protective cover at its corresponding position, and the outer diameter of the cable is larger than the inner diameter of the outlet. After assembly, the protective cover can tightly wrap the reducer and the cable, that is, the opening of the protective cover can be tightly connected to the electric drive device, thereby further improving the protection effect of the motor.

[0015] Furthermore, the protective cover includes a protective cover body and a convex portion, the wire outlet is opened on the protective cover body, the convex portion is arranged on the inner wall of the protective cover body and protrudes toward the reducer, and a groove is opened on the outer surface of the reducer corresponding to the convex portion, and the convex portion is clamped in the groove.

[0016] Therefore, the snap-fit ​​structure of the protrusion and the groove further strengthens the tightness of the connection between the protective cover and the reducer, which is more conducive to preventing water, dust, etc. from entering the motor through the reducer, thereby further improving the safety of the motor.

[0017] Furthermore, the radial outer periphery of the reducer is provided with at least one circle of grooves, the number of convex portions is equal to the number of grooves, the positions of the convex portions correspond one to one with the positions of the grooves, and the shapes of the convex portions are adapted to the shapes of the corresponding grooves.

[0018] Thus, the grooves and convex parts are arranged into a continuous ring structure, which has a better protection effect against water, dust, etc., thereby further improving the safety of the motor.

[0019] Furthermore, the inner diameter of a circle of protrusions is smaller than the inner diameter of a circle of grooves corresponding thereto, so that the correspondingly arranged protrusions are connected with the grooves by interference fit.

[0020] Thus, the convex portion can be tightly fitted into the groove, making the connection between the convex portion and the groove tighter, further improving the protection effect against water, dust, etc., so that the protective cover can more effectively protect the motor.

[0021] Furthermore, the protrusion and the protective cover body are an integral structure or a separate structure.

[0022] Therefore, when the convex portion and the protective cover body are an integrated structure, the protective cover body and the convex portion are tightly connected, and the protection against water, dust, etc. is better, thereby improving the protection effect on the motor; since the convex portion is arranged between the protective cover body and the groove, the convex portion is easily damaged by being squeezed for a long time. When the convex portion and the protective cover body are a separate structure, it is convenient to replace the damaged convex portion, and the protective cover body can continue to be used, saving costs.

[0023] Furthermore, the convex portion is an elastic convex portion.

[0024] Therefore, the convex part is not only convenient to install, but also not easily damaged when squeezed between the protective cover body and the groove, thereby increasing the service life of the convex part.

[0025] Furthermore, a clamp is sleeved on the outer surface of the protective cover, the clamp is sleeved on the outer surface of the wire outlet, and / or the clamp is sleeved on the outer surface of the reducer corresponding to the protective cover.

[0026] Therefore, a clamp is provided at the wire outlet and / or the protective cover corresponding to the reducer to lock the edge opening position of the protective cover, the protective cover can tightly wrap the reducer and cables, and the opening of the protective cover can be tightly connected to the electric drive device, thereby further improving the protection effect of the motor.

[0027] Furthermore, the protective cover has an outlet pipe extending outward from the outlet port, the cable partially passes through the outlet pipe, and the cable and the outlet pipe are connected by interference fit, and the clamp sleeve is arranged on the outer surface of the outlet pipe.

[0028] In summary, the beneficial effects of the electric drive device with a protective structure provided by the utility model are as follows:

[0029] 1) By setting a protective cover to wrap around the outer surface of the driving mechanism, specifically, the protective cover completely wraps the motor, completely wraps the connection between the motor and the reducer, partially wraps the reducer, and partially wraps the cable, not only the motor is within the protection range of the protective cover, but also the connection between the motor and its connected parts and the ends of the connected parts close to the motor are all within the protection range of the protective cover, avoiding water, dust, etc. from entering through the connected parts to damage the motor, thereby achieving good waterproof, dustproof, anti-electrical and other protection effects on the motor;

[0030] 2) By setting interference fit connections between the protective cover and the reducer, the outlet and the cable, the protective cover can tightly wrap the reducer and the cable, that is, the opening of the protective cover can be tightly connected with the electric drive device, thereby further improving the protection effect of the motor; and the protective cover is an elastic structure, which is more convenient to install and can make the protective cover more tightly wrapped;

[0031] 3) The arrangement of the groove and the convex part and the interference fit connection between the two make the protective cover wrap the reducer more tightly, further improving the protection effect against water, dust, etc., so that the protective cover can protect the motor more effectively;

[0032] 4) A clamp is provided at the wire outlet and / or the protective cover corresponding to the reducer to lock the edge opening position of the protective cover, so that the protective cover can tightly wrap the reducer and the cable, that is, the opening of the protective cover can be tightly connected to the electric drive device, thereby further improving the protection effect of the motor.

[0033] The utility model also provides a parking lock, comprising an electric control box, a flap and an electric drive device with a protective structure. The electric drive device with the protective structure is arranged in the electric control box and is transmission-connected to the flap.

[0034] The parking lock provided by the utility model arranges a protective structure on the outer surface of the electric drive device to form an electric drive device with a protective structure, and arranges the electric drive device with the protective structure in an electric control box of the parking lock, thereby avoiding the protective structure being exposed outside the parking lock and being easily damaged, thereby improving the service life of the protective structure and thus extending the service life of the electric drive device; in addition, the protective structure arranged on the outer surface of the electric drive device occupies a small volume, and when the electric drive device is installed in the parking lock, the space utilization rate in the parking lock is improved, and compared with arranging the protective structure outside the parking lock, the volume of the parking lock is effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of the electric drive device with a protective structure of the utility model;

[0036] Figure 2 It is a schematic diagram of the structure of the electric drive device of the utility model;

[0037] Figure 3 It is a cross-sectional view of the electric drive device with a protective structure of the utility model;

[0038] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0039] Figure 5 for Figure 3 A is a schematic structural diagram of another implementation method;

[0040] Figure 6 for Figure 3 Enlarged view of point B in the middle;

[0041] Figure 7 This is a schematic diagram of the structure of the parking lock of the utility model;

[0042] Figure 8 The utility model is a schematic diagram of the structure of the electric drive device with a protective structure assembled in a parking lock.

[0043] The meanings of the reference numerals are as follows:

[0044] 01. Electric drive device with protective structure; 02. Electric control box; 03. Flap; 1. Motor; 2. Reducer; 21. Groove; 3. Cable; 4. Protective cover; 41. Wire outlet; 42. Protective cover body; 43. Protrusion; 5. Clamp. DETAILED DESCRIPTION

[0045] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0046] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0048] A parking lock is a car locking device installed on a parking space. Most parking places, especially roadside parking spaces, are often equipped with parking locks to cope with the current situation of increasing car ownership and tight parking resources. Common parking locks are unmanned and automatically controlled. When there is no car parked, the parking lock is closed and does not affect the normal passage of pedestrians. When a car enters the parking space, the parking lock automatically recognizes and locks to restrict the movement of the car. The owner needs to scan the code to pay, and then the parking lock is closed before the car can leave.

[0049] The common structure of a parking lock is shown in Chinese patent CN117026870A, which uses a lithium battery to power the motor, which drives the slider and the support rod on the slider to move along the length direction of the screw through the transmission of the motor. Finally, the connecting seat connected to the support rod drives the upper cover to rotate, so as to realize the lifting and lowering of the parking lock. The utility model provides a parking lock with a different structure from the prior art, see Figure 7 It includes an electric control box 02 and a flap 03. The electric control box 02 is the power control system of the parking lock, which controls the rising or falling of the flap 03 to open or close the parking lock.

[0050] Specifically, the parking lock is powered by an electric drive device, which is arranged in the electric control box 02, electrically connected to the control system in the electric control box 02, and in transmission connection with the flap 03. When a car enters the parking space, the control system in the electric control box 02 controls the electric drive device to start to drive the flap 03 to rise, thereby limiting the movement of the car through the flap 03. When the owner wants to drive away, the owner needs to scan the code to pay, and the control system controls the electric drive device to drive the flap 03 to fall, close the parking lock, and the car can leave.

[0051] Since the rise and fall of the flap 03 is mainly driven by the electric drive device, the use safety of the electric drive device is very important. Most of the parking locks are set in open roadside parking spaces. Rainwater, dust, etc. can easily enter the parking lock and affect the electric drive device. At the same time, it should also be avoided that the electric drive device leaks electricity and affects pedestrian safety. Therefore, it is very necessary to protect the electric drive device from water, dust, and electricity. In the prior art, there are mainly two kinds of protection measures for the electric drive device. The first is to set a protective cover on the outer surface of the parking lock, which not only increases the volume of the parking lock, but also the protective cover is easily damaged when exposed to the outside for a long time, and the protection effect is poor. Water, dust, etc. can easily enter the parking lock and damage the electric drive device, and it is not conducive to preventing the electric drive device from leaking electricity. The second is to set a protective cover on the motor of the electric drive device. Although the protective cover is prevented from being damaged due to exposure, water, dust, etc. can easily enter the motor from the connection between the motor and other components and cause damage. The leakage of the motor is also easily transmitted to the outside at the connection between it and other components. There are still safety hazards in the use of the electric drive device.

[0052] To this end, the utility model provides an electric drive device 01 with a protective structure, which includes an electric drive device and a protective structure arranged on the outer surface of the electric drive device. Figure 2 The electric drive device includes a motor 1, a reducer 2 and a cable 3. The motor 1 and the reducer 2 are transmission-connected to form a drive mechanism, and the cable 3 is electrically connected to the motor 1.

[0053] It should be noted that Figure 2 The motor 1 and the reducer 2 are specifically coaxially fixedly connected as an integral structure, and this is a relatively common connection structure of the motor 1 and the reducer 2 in parking locks. The utility model only uses this structure of the electric drive device as an example, and it does not mean that the electric drive device 01 with a protective structure of the utility model is only applicable to this connection structure. In the prior art, there are many ways to connect the motor 1 and the reducer 2. The motor 1 and the reducer 2 can be a split structure, and the two can be connected by flanges, couplings, etc. These are all common connection structures of the motor 1 and the reducer 2 on the market, and will not be described in detail here.

[0054] The cable 3 is generally provided at one end of the motor 1 to facilitate electrical connection with other components. Figure 2 As shown, the present invention is described by taking the example that the cable 3 is arranged at the end of the motor 1 away from the reducer 2. In actual applications, the arrangement position of the cable 3 can be changed as needed.

[0055] by Figure 2 Taking the electric drive device of the structure shown in the figure as an example, a protective structure is provided on its outer surface. Figure 1 and Figure 3 The protective structure is a protective cover 4. Along the extension direction of the driving mechanism, the protective cover 4 is continuously wrapped around the outer surface of the driving mechanism, and the entire motor 1, the connection between the motor 1 and the reducer 2, and part of the reducer 2 are sealed and wrapped in the protective cover 4. The protective cover 4 is provided with a wire outlet 41 corresponding to the cable 3, and part of the cable 3 passes through the wire outlet 41, and the wire outlet 41 and the cable 3 are sealed.

[0056] Therefore, the electric drive device 01 with a protective structure provided by the utility model is wrapped around the outer surface of the drive mechanism by arranging a protective cover 4, specifically, the protective cover 4 completely wraps the motor 1, completely wraps the connection between the motor 1 and the reducer 2, partially wraps the reducer 1, and partially wraps the cable 3. Not only is the motor 1 within the protection range of the protective cover 4, but also the connection between the motor 1 and its connected parts, and the ends of the connected parts close to the motor 1 are all within the protection range of the protective cover 4, thereby preventing water, dust, etc. from entering through the connected parts to damage the motor 1, and also preventing leakage of the motor 1 from being transmitted to the outside from the connected parts, thereby achieving excellent waterproof, dustproof, anti-electrical and other protective effects on the motor 1.

[0057] Therefore, when the electric drive device 01 with a protective structure of the present invention is installed in the parking lock, refer to Figure 8 The electric drive device 01 with a protective structure is arranged in the electric control box 02 and is in transmission connection with the flap 03. Since the protective cover 4 is arranged on the outer surface of the electric drive device, it avoids the protective cover 4 being exposed outside the parking lock and being easily damaged, and the service life of the protective cover 4 is improved, so that the protective cover 4 can provide waterproof, dustproof, and anti-electric protection to the electric drive device for a long time, thereby extending the service life of the electric drive device. In addition, the protective cover 4 is arranged on the outer surface of the electric drive device and occupies a small volume, which improves the space utilization rate in the parking lock, and compared with the protective cover 4 arranged outside the parking lock, the volume of the parking lock is effectively reduced.

[0058] It is worth noting that the protective cover 4 of the present invention is only a continuous structure, but the inner diameter of each part of the protective cover 4 is not necessarily the same, which depends on the outer diameter of the motor 1, the outer diameter of the reducer 2 and the outer diameter of the cable 3. It is sufficient to ensure that the protective cover 4 can tightly and completely wrap the motor 1, completely wrap the connection between the motor 1 and the reducer 2, partially wrap the reducer 1 and partially wrap the cable 3.

[0059] On this basis, the protective cover 4 of the utility model can be an ordinary non-elastic protective cover, such as plastic, etc. Alternatively, the protective cover 4 can also be an elastic protective cover, such as rubber, silicone, etc. Compared with the ordinary non-elastic protective cover, the elastic protective cover is easier to install, and can tightly wrap the motor 1, the connection between the motor 1 and the reducer 2, part of the reducer 2 and part of the cable 3, so that the protection effect is further improved.

[0060] Whether it is an ordinary non-elastic protective cover or an elastic protective cover, the basic requirement for the protective cover 4 to be wrapped around the outer surface of the electric drive device is that the protective cover 4 is tightly fitted with the reducer 2, and the outlet 41 is tightly fitted with the cable 3. Therefore, if the protective cover 4 is an elastic protective cover, it can be easily set and tightly wrapped around the outer surface of the electric drive device by utilizing its own elasticity, which not only has a good protective effect, but is also not easy to damage. If the protective cover 4 is a non-elastic protective cover, such as plastic, its thermal expansion and contraction characteristics can be utilized to wrap the non-elastic protective cover around the outer surface of the electric drive device. However, since the non-elastic protective cover has been subjected to thermal expansion and contraction treatment, it is easy to be damaged during the processing process, or it is easy to be damaged during use, that is, the non-elastic protective cover has a poor protective effect on the electric drive device.

[0061] Based on this, the protective cover 4 used in the electric drive device 01 with a protective structure of the present invention is preferably an elastic protective cover, and in the following description, the protective cover 4 is assumed to be an elastic protective cover for example.

[0062] Furthermore, the reducer 2 and the protective cover 4 are connected by interference fit, and the cable 3 and the outlet 41 are connected by interference fit. Specifically, the outer diameter of the reducer 2 is larger than the inner diameter of the protective cover 4 at the corresponding position, and the outer diameter of the cable 3 is larger than the inner diameter of the outlet 41. After assembly, the protective cover 4 can tightly wrap the reducer 2 and the cable 3, that is, the opening of the protective cover 4 can be tightly connected with the electric drive device, thereby further improving the protective effect of the protective cover 4 on the motor 1.

[0063] See also Figure 2 and Figure 3 The protective cover 4 includes a protective cover body 42 and a convex portion 43. The wire outlet 41 is provided on the protective cover body 42. The convex portion 43 is provided on the inner wall of the protective cover body 42 and protrudes toward the reducer 2. The outer surface of the reducer 2 is provided with a groove 21 corresponding to the convex portion 43. The convex portion 43 is clamped in the groove 21. Therefore, the clamping structure of the convex portion 43 and the groove 21 further strengthens the tightness of the connection between the protective cover 4 and the reducer 2, which is more conducive to preventing water, dust, etc. from entering the motor 1 through the reducer 2, and preventing the risk of leakage of the motor 1, thereby further improving the safety of the motor 1.

[0064] The groove 21 can be a segment or several segments of arc-shaped structures arranged along the radial periphery of the reducer 2. The number of the protrusions 43 is equal to the number of the arc-shaped grooves 21, and the positions correspond one to one. When the protrusions 43 are clamped in the corresponding grooves 21, the tightness of the connection between the protective cover 4 and the reducer 2 can be effectively improved.

[0065] Preferably, the groove 21 of the utility model is an annular structure arranged along the radial outer periphery of the reducer 2, that is, a circle of grooves 21 is arranged on the radial outer periphery of the reducer 2, and the position of the convex portion 43 corresponds to the position of the groove 21, and the shape is adapted. As a result, a tighter structural design is performed within the entire circle of contact between the reducer 2 and the protective cover 4, and the protective effect is further improved.

[0066] Furthermore, the reducer 2 is provided with multiple circles of grooves 21 at intervals at the position corresponding to the protective cover 4, the number of the convex parts 43 is equal to the number of the grooves 21, and the positions of the convex parts 43 correspond to the positions of the grooves 21. Thus, it is possible to avoid leaks at the connection between a certain group or two or more groups of grooves 21 and the convex parts 43, so that the protective effect of the protective cover 4 on the motor 1 is greatly improved.

[0067] On this basis, the inner diameter of a circle of protrusions 43 is smaller than the inner diameter of a circle of grooves 21 corresponding thereto, so that the correspondingly arranged protrusions 43 are connected with the grooves 21 by interference fit. Thus, the protrusions 43 can be tightly sleeved in the grooves 21, so that the connection between the protrusions 43 and the grooves 21 is tighter, further improving the protection effect against water, dust, etc., so that the protective cover 4 can more effectively protect the electric drive device. Figure 3 and Figure 6 In the present invention, the inner diameter refers to the radius. The inner diameter of the convex portion 43 is R2, which is the straight-line distance from the center axis of the reducer 2 to the convex point of the convex portion 43. The inner diameter of the groove 21 is R1, which is the straight-line distance from the center axis of the reducer 2 to the bottom of the groove 42. Of course, the inner diameter can also refer to the diameter. The inner diameter of the convex portion 43 is the straight-line distance between the convex points of the two convex portions 43 arranged opposite to each other along the radial direction of the reducer 2, and the inner diameter of the groove 21 is the straight-line distance between the bottoms of the two grooves 21 arranged opposite to each other along the radial direction of the reducer 2. However, since the convex portion 43 and the groove 21 are not necessarily arranged as an annular structure, the use of the radius can be more clearly described.

[0068] The interference fit connection structure between the protrusion 43 and the groove 21 can be as follows: Figure 4 As shown, the protrusion 43 and the protective cover body 42 are an integrated structure, and the protective cover body 42 and the protrusion 43 are tightly connected, thereby preventing water, dust, etc. from entering the motor 1 from between the protective cover body 42 and the protrusion 43, and having a better protection effect against water, dust, etc., thereby being able to improve the protection effect on the electric drive device.

[0069] The interference fit connection structure between the protrusion 43 and the groove 21 can also be as follows Figure 5 As shown, the protrusion 43 and the protective cover body 42 are split structures. Since the protrusion 43 is arranged between the protective cover body 42 and the groove 21, the protrusion 43 is easily damaged by being squeezed for a long time. When the protrusion 43 and the protective cover body 42 are split structures, it is convenient to replace the damaged protrusion 43, and the protective cover body 42 can continue to be used, saving costs.

[0070] Regardless of whether the convex portion 43 and the shield body 42 are an integral structure or a separate structure, preferably, the shield body 42 and the convex portion 43 are both elastic structures, such as rubber, silicone, etc. This is not only convenient for installation, but also enables the convex portion 43 to fit tightly with the shield body 42 due to its own elasticity after installation, and the convex portion 43 is tightly squeezed into the groove 21, so that the connection between the shield 4 and the reducer 2 is very tight, and the protective effect is greatly improved. At the same time, the elastic structure is not easily damaged by squeezing, and the service life of the shield body 42 and the convex portion 43 can be effectively extended.

[0071] Of course, in practical applications, the protective cover body 42 and / or the protrusion 43 may also be made of a non-elastic structure, such as plastic. Although it has a protective effect, it needs to be installed by means of thermal expansion and contraction, which is complicated to operate, and is easily damaged during the installation process. It cannot be used for a long time, and it is easy to have installation gaps, which greatly reduces the protective effect.

[0072] In addition, see Figure 1In the electric drive device 01 with a protective structure of the utility model, a clamp 5 is sleeved on the outer surface of the protective cover 4. Specifically, the clamp 5 is sleeved on the outer surface of the outlet 41, and / or the clamp 5 is sleeved on the outer surface of the reducer 2 corresponding to the protective cover 4. Therefore, the clamp 5 is provided at the outlet 41 and / or the protective cover 4 corresponding to the reducer 2 to lock the edge opening position of the protective cover 4, and the protective cover 4 can tightly wrap the reducer 2 and the cable 3, that is, the opening of the protective cover 4 can be tightly connected with the electric drive device, thereby further improving the protection effect of the motor 1.

[0073] It is worth noting that the outlet 41 can be Figure 1 As shown, the protective cover body 42 extends outward, and the clamp 5 is directly sleeved on the outer surface of the outlet 41. Alternatively, the outlet 41 is an opening arranged on the protective cover body 42 corresponding to the position of the cable 3, and the protective cover 4 has an outlet tube extending outward from the outlet 41, and the cable 3 partially passes through the outlet tube, and the cable 3 and the outlet tube are connected by interference fit, and the clamp 5 is sleeved on the outer surface of the outlet tube. As a result, the outlet tube can lock the cable 3, so that the protective cover 4 tightly wraps the cable 3, and the opening of the protective cover 4 is tightly connected with the electric drive device.

[0074] The above is the main structure and main implementation of the electric drive device 01 with a protective structure of the utility model, and its beneficial effects are as follows:

[0075] 1) By setting a protective cover 4 to wrap around the outer surface of the driving mechanism, specifically, the protective cover 4 completely wraps the motor 1, completely wraps the connection between the motor 1 and the reducer 2, partially wraps the reducer 2, and partially wraps the cable 3, not only the motor 1 is within the protection range of the protective cover 4, but also the connection between the motor 1 and its connected parts and the ends of the connected parts close to the motor 1 are all within the protection range of the protective cover 4, preventing water, dust, etc. from entering from the connected parts to damage the motor 1, thereby achieving good waterproof, dustproof, anti-electrical and other protection effects on the motor 1;

[0076] 2) By setting the interference fit connection between the protective cover 4 and the reducer 2, the outlet 41 and the cable 3, the protective cover 4 can tightly wrap the reducer 1 and the cable 3, that is, the opening of the protective cover 4 can be tightly connected with the electric drive device, thereby further improving the protection effect of the motor 1; and the protective cover 4 is an elastic structure, which is more convenient to install and can make the protective cover 4 wrap more tightly;

[0077] 3) The arrangement of the groove 21 and the convex portion 43 and the interference fit connection therebetween make the protective cover 4 wrap the reducer 2 more tightly, further improving the protection effect against water, dust, etc., so that the protective cover 4 can more effectively protect the electric drive device;

[0078] 4) A clamp 5 is provided at the wire outlet 41 and / or the protective cover 4 corresponding to the reducer 2 to lock the edge opening position of the protective cover 4. The protective cover 4 can tightly wrap the reducer 2 and the cable 3, that is, the opening of the protective cover 4 can be tightly connected to the electric drive device, thereby further improving the protection effect of the motor 1.

[0079] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. An electric drive device with a protective structure, characterized in that: include: A motor, a reducer and a cable, wherein the motor and the reducer are drivingly connected to form a driving mechanism, and the cable is electrically connected to the motor; Also includes: A protective cover, which is continuously wrapped around the outer surface of the driving mechanism along the extension direction of the driving mechanism, and the entire motor, the connection between the motor and the reducer, and a part of the reducer are sealed and wrapped in the protective cover; The protective cover is provided with a wire outlet corresponding to the cable, the cable partially passes through the wire outlet, and the wire outlet and the cable are sealed.

2. The electric drive device with a protective structure according to claim 1, characterized in that: The protective cover is an elastic protective cover.

3. The electric drive device with a protective structure according to claim 1 or 2, characterized in that: The reducer and the protective cover are connected by interference fit, and the cable and the cable outlet are connected by interference fit.

4. The electric drive device with a protective structure according to claim 1 or 2, characterized in that: The protective cover includes a protective cover body and a convex portion, the wire outlet is opened on the protective cover body, the convex portion is arranged on the inner wall of the protective cover body and protrudes toward the reducer, the outer surface of the reducer is provided with a groove corresponding to the convex portion, and the convex portion is clamped in the groove.

5. The electric drive device with a protective structure according to claim 4, characterized in that: The radial outer periphery of the reducer is provided with at least one circle of the grooves, the number of the protrusions is equal to the number of the grooves, and the positions of the protrusions correspond one-to-one to the positions of the grooves, and the shape of the protrusions is adapted to the shape of the corresponding grooves.

6. The electric drive device with a protective structure according to claim 5, characterized in that: The inner diameter of a circle of the protrusions is smaller than the inner diameter of a corresponding circle of the grooves, so that the correspondingly arranged protrusions are connected with the grooves by interference fit.

7. The electric drive device with a protective structure according to claim 4, characterized in that: The convex portion and the protective cover body are an integral structure or a separate structure.

8. The electric drive device with a protective structure according to claim 4, characterized in that: The convex portion is an elastic convex portion.

9. The electric drive device with a protective structure according to claim 1, characterized in that: The outer surface of the protective cover is sleeved with a clamp, the clamp is sleeved on the outer surface of the outlet, and / or the clamp is sleeved on the outer surface of the protective cover corresponding to the reducer.

10. The electric drive device with a protective structure according to claim 9, characterized in that: The protective cover has an outlet pipe extending outward from the outlet port, the cable partially passes through the outlet pipe, and the cable and the outlet pipe are connected by interference fit, and the clamp is sleeved on the outer surface of the outlet pipe.

11. A parking lock, characterized in that: It comprises an electric control box, a flap and an electric drive device with a protective structure as described in any one of claims 1 to 10, wherein the electric drive device with a protective structure is arranged in the electric control box, and the electric drive device with a protective structure is transmission-connected to the flap.

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