CN216009716U - Control actuator for electric automobile - Google Patents

Abstract

The utility model discloses a control actuator for an electric automobile, which comprises a shell, a motor and a gear set, wherein the shell is internally provided with a containing space; the control actuator also comprises a dynamic sealing ring arranged at the output end of the gear set, so that the output end of the gear set is always tightly attached to the shell in the rotating process. The utility model discloses an adopt dynamic seal circle, can make the gear train output of control executor be connected the back with the valve body valve rod, ensure that the motor drives gear train and rotates the in-process, keep closely laminating of gear train output and casing throughout, inside dust in the environment, steam got into the casing from the gap between gear train output and the casing, make control executor have good dustproof, water-proof effects, prolonged control executor's life, and overall structure is simple, compact, and the volume is less.

Description

Control actuator for electric automobile

Technical Field

The utility model relates to an executor technical field, in particular to control executor for electric automobile.

Background

The actuator is a common control device in automobile accessories, and is used for controlling the opening, closing, opening and flow regulation of the valve body after being assembled and connected with various valve bodies in a cooling system of an automobile battery pack and an exhaust system of an automobile engine to ensure the flow of the cooling liquid of the cooling system of the automobile battery pack and the flow of the gas of the automobile engine.

The most great size of current control executor is great, is unfavorable for the assembly in automobile space, and current control executor needs to be connected with the valve rod of valve body because of its gear train output moreover, rotates through the gear train and drives the valve rod rotatory, realizes opening and close of valve body valve plate and adjusts, can't guarantee the gear train working process in and the leakproofness between the casing, very easily lead to dust, steam to get into inside the casing, cause the damage to executor internal element, influence the life of executor.

The utility model provides a control executor for electric automobile establishes dynamic seal circle through the cover on the gear train output, makes the gear train rotate the in-process and remain throughout with the inseparable laminating of casing, avoids dust, steam in the environment to get into inside the casing from the gap between gear train output and the casing, makes control executor have good dustproof, water-proof effects, has prolonged control executor's life, and overall structure is simple, compact, and the volume is less.

Disclosure of Invention

An object of the utility model is to provide an electric automobile is with control executor to solve the problem of mentioning in the above-mentioned background art.

In order to achieve the above object, the solution of the present invention is: a control actuator for an electric automobile comprises a shell, a motor and a gear set, wherein the shell is internally provided with a containing space, the motor is arranged in the containing space, and the gear set is arranged in the containing space and is connected with the motor; the control actuator also comprises a dynamic sealing ring arranged at the output end of the gear set, so that the output end of the gear set is always tightly attached to the shell in the rotating process.

Further, the housing comprises a casing and a cover body; the shell and the cover body are tightly attached and form a containing space in the shell; the connection part of the shell and the cover body is hermetically connected in a laser welding mode.

Furthermore, the outer surface of the casing is provided with a convex wiring part and an opening part for accommodating the output end of the gear set; the wiring portion is of a hollow structure, and a conductive through hole is formed between the hollow cavity of the wiring portion and the accommodating space.

Furthermore, the cover body is provided with a positioning part for limiting the gear set.

Furthermore, a conductive part connected with the motor is arranged in the accommodating space, and one end of the conductive part penetrates through the conductive through hole and extends into the hollow cavity of the wiring part.

Furthermore, a fixing component for fixing the motor and a PCB for controlling the motor to be automatically opened and closed are arranged on the upper side of the motor; the fixing piece is located below the PCB.

Further, the gear set comprises a first gear, a second gear, a third gear and a fourth gear which are meshed in sequence; the gear is sleeved on an output shaft of the motor; the second gear and the third gear are both arranged in the accommodating space through rotating shafts; the axial lines of the upper end surface and the lower end surface of the gear IV are respectively provided with an upper end part and a lower end part which are used for supporting the gear IV to rotate, the lower end part of the gear IV extends into the opening part to form an output end of the whole gear set, and the lower end part of the gear IV is provided with a spline groove facing the opening part; and the dynamic sealing ring is sleeved at the outer side of the lower end part of the gear IV and is in abutting connection with the machine shell.

Furthermore, the gear set comprises a first gear, a second gear, a third gear, a fifth gear, a sixth gear and a fourth gear which are meshed in sequence; the gear is sleeved on an output shaft of the motor; the second gear, the third gear, the fifth gear and the sixth gear are all arranged in the accommodating space through rotating shafts; the bottom end of the gear IV is provided with a lower end part for supporting the gear IV to rotate, the lower end part of the gear IV extends into the opening part to form an output end of the whole gear set, and the lower end part of the gear IV is provided with a spline groove facing the opening part; and the dynamic sealing ring is sleeved at the outer side of the lower end part of the gear IV and is in abutting connection with the machine shell.

Compared with the prior art, the utility model has the advantages that:

(1) the utility model discloses an adopt the dynamic seal circle, can make the gear train output of control executor be connected with the valve body valve rod after, ensure that the motor drives the gear train and rotates the process, keep closely laminating of gear train output and casing throughout, avoid dust, steam in the environment to get into the casing from the gap between gear train output and the casing inside, make the control executor have good dustproof, waterproof effect, prolonged the life of control executor;

(2) the utility model discloses an adopt can dismantle casing and the lid of connection and constitute the casing to the seam of casing and lid is connected to the mode through laser welding, the sealed effect of casing can further be improved, dustproof, the waterproof nature of control executor is ensured.

(3) The utility model has the advantages of simple overall structure, compact structure, and small volume.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present invention;

fig. 2 is an exploded view of a first embodiment of the present invention;

fig. 3 is a schematic view of an internal structure of a housing according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of a cover according to an embodiment of the present invention;

fig. 5 is a schematic cross-sectional view of a first embodiment of the present invention;

fig. 6 is a schematic perspective view of a second embodiment of the present invention;

fig. 7 is an exploded view of a second embodiment of the present invention;

fig. 8 is a schematic view of an internal structure of a second housing according to an embodiment of the present invention;

fig. 9 is a schematic perspective view of a second cover according to an embodiment of the present invention;

fig. 10 is a schematic cross-sectional view of a second embodiment of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

a housing 1, a guide portion 11, a mounting portion 12, a wiring portion 13, and an opening portion 14;

the cover body 2, the convex ring II 21, the guide bulge 22, the first positioning seat 23, the second positioning seat 24 and the fixed seat 25;

gear set 3, gear one 31, gear two 32, gear three 33, gear four 34;

a motor 4;

a dynamic seal ring 5;

a conductive part 6, a wiring antenna 61, a conductive antenna 62;

a PCB board 7;

and a fixing member 8.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The first embodiment is as follows:

as shown in fig. 1 to 5, a control actuator for an electric vehicle includes a housing having a receiving space therein, a motor 4 disposed in the receiving space, and a gear set 3 disposed in the receiving space and connected to the motor 4; the control actuator also comprises a dynamic sealing ring 5 arranged at the output end of the gear set 3, so that the output end of the gear set 3 is always tightly attached to the shell in the rotating process; after a valve rod of the valve body is connected with the output end of the gear set 3 of the actuator, when the motor 4 is electrified to drive the gear set 3 to rotate, the output end of the gear set 3 can drive the valve rod to rotate, and the opening and closing degree of a valve cover in the valve body is adjusted through the rotating valve rod, so that the opening and closing and the flow regulation of the valve body are realized; the dynamic sealing ring 5 can always keep the close fit of the output end of the gear set 3 and the shell in the rotation process of the gear set 3, so that dust and water vapor in the environment are prevented from entering the shell from a gap between the output end of the gear set 3 and the shell, the motor 4 and the gear set 3 in the accommodating space are prevented from being influenced by the dust and the water vapor, the control actuator has good dustproof and waterproof effects, and the service life of the control actuator is prolonged;

referring to fig. 1, fig. 2 and fig. 5, in the present embodiment, the housing includes a casing 1 and a cover 2; the machine shell 1 and the cover body 2 are tightly attached, and a containing space is formed in the machine shell 1; the connection part of the shell 1 and the cover body 2 is hermetically connected in a laser welding mode; the opening end of the casing 1 is inwards recessed to form a circle of first convex ring, the outer edge of the cover body 2 is provided with a circle of second convex ring 21, the shape of the first convex ring is matched with that of the second convex ring 21, after the casing 1 and the cover body 2 are tightly attached, the first convex ring and the second convex ring 21 are mutually abutted and clamped, the attachment part of the casing 1 and the cover body 2 forms a step-shaped sealing part, and after the sealing part is subjected to laser welding, a seam disappears, so that the sealing performance of the connection part of the casing 1 and the cover body 2 is effectively improved, environmental dust and water vapor are prevented from entering the containing space through the assembly gap of the casing 1 and the cover body 2, and the sealing effect of the casing is further improved;

referring to fig. 1-3 and 5, in the present embodiment, the outer surface of the housing 1 is provided with a protruding wiring portion 13 and an opening portion 14 for accommodating the output end of the gear set 3; the wiring part 13 is of a hollow structure, and a conductive through hole is formed between the hollow cavity of the wiring part 13 and the accommodating space; a conductive part 6 connected with the motor 4 is arranged in the accommodating space, and one end of the conductive part 6 penetrates through the conductive through hole to extend into the hollow cavity of the wiring part 13; in this embodiment, the conductive part 6 is a metal sheet made of two conductive metals, the metal sheet is in a "Z" shape, the two metal sheets form a positive-negative conductive path to be connected with the positive and negative electrodes of the motor 4, and the metal sheet extending into the wiring part 13 forms a positive-negative two wiring contact angles 61 in the wiring part 13, so that when the control actuator is connected with an external circuit, the positive and negative electrodes of the motor 4 can be connected through the metal sheet in the wiring part 13, and the motor 4 can be powered on for use; the opening part 14 can be used for accommodating the output end of the gear set 3, so that the connection between the output end of the gear set 3 and a valve rod of the valve body is facilitated, and the opening, closing and flow regulation of a valve of the valve body are controlled by a control actuator;

in this embodiment, the bottom of the outer side of the casing 1 is further provided with a guide portion 11 and an installation portion 12, the center of the installation portion 12 is provided with an installation hole, and the guide portion 11 and the installation portion 12 are used for controlling positioning and installation of an actuator respectively;

referring to fig. 2, 4 and 5, in the present embodiment, the gear set 3 includes a first gear 31, a second gear 32, a third gear 33 and a fourth gear 34 which are meshed in sequence; the first gear 31 is sleeved on an output shaft of the motor 4; the second gear 32 and the third gear 33 are both arranged in the accommodating space through rotating shafts; the axes of the upper end surface and the lower end surface of the gear four 34 are respectively provided with an upper end part and a lower end part which are used for supporting the gear four 34 to rotate, the lower end part of the gear four 34 extends to the opening part 14 to form an output end of the whole gear set 3, and the lower end part of the gear four 34 is provided with a spline groove facing the opening part 14; the dynamic sealing ring 5 is sleeved at the outer side of the lower end part of the gear four 34 and is in abutting connection with the machine shell 1; the second gear 32 and the third gear 33 are both T-shaped gears, the diameter of an upper section gear ring of the second gear 32 is smaller, the diameter of a lower section gear ring is larger, the diameter of an upper section gear ring of the third gear 33 is larger, and the diameter of the lower section gear ring is smaller; when the first gear 31, the second gear 32, the third gear 33 and the fourth gear 34 are sequentially assembled, the first gear 31 is meshed with the lower section toothed ring of the second gear 32, the upper section toothed ring of the second gear 32 is meshed with the upper section toothed ring of the third gear 33, and the lower section toothed ring of the third gear 33 is meshed with the fourth gear 34, so that after the assembly, the transmission ratio of the gear set 3 can be ensured, the overall occupied space of the gear set 3 can be reduced, the overall size of the actuator can be optimized and controlled, the volume of the actuator can be reduced, and the actuator can be conveniently assembled and used;

referring to fig. 4, in the present embodiment, a positioning portion for limiting the gear set 3 is disposed on the cover 2; in this embodiment, the positioning portion includes a first positioning seat 23 for limiting the movement of the rotating shafts of the second gear 32 and the third gear 33 and a second positioning seat 24 for limiting the movement of the fourth gear 34; a through hole for accommodating the rotating shafts of the second gear 32 and the third gear 33 is formed in the first positioning seat 23, and a through hole for accommodating the upper end part of the fourth gear 34 is formed in the second positioning seat 24;

in this embodiment, the cover body 2 on one side of the first positioning seat 23 and the second positioning seat 24 is further provided with a guide protrusion 22 and a fixing seat 25 for limiting the movement of the motor 4; the guide projection 22 is used for positioning and guiding when the machine shell 1 and the cover body 2 are assembled; the cover body 2 between the fixed seats 25 is provided with the supporting ribs at equal intervals, so that the motor 4 can be supported by the supporting ribs when being assembled between the fixed seats 25, and is limited by the fixed seats 25, and the influence of the shaking of the motor 4 on the work of the control actuator is avoided; and the supporting ribs with certain thickness can ensure that a certain gap is left between the motor 4 and the cover body 2, thereby being beneficial to the heat dissipation of the motor 4 and avoiding the damage of the motor 4 caused by the overheating of the contact surface of the motor 4 and the cover body 2.

Example two:

referring to fig. 6 to fig. 10, the difference between the present embodiment and the first embodiment is: the upper side of the motor 4 is also provided with a fixing part 8 for fixing the motor 4 and a PCB 7 for controlling the motor 4 to be automatically opened and closed, and the fixing part 8 is positioned below the PCB 7; in the present embodiment, the conductive part 6 includes a wiring antenna 61 connected to the PCB board 7 and a conductive antenna 62 connected to the motor 4; the PCB 7 is connected with an automobile ECU in an LIN communication mode; the wiring antenna 61 is of an L-shaped structure, the conductive antenna 62 is of a straight-line-shaped structure, one end of the wiring antenna 61 penetrates through the conductive through hole and extends into the hollow cavity of the wiring part 13, one end of the conductive antenna 62 penetrates through the fixing part 8 and is connected with the PCB 7, so that when the control actuator is connected with an external circuit, a working power supply of the PCB 7 can be switched on through the wiring antenna 61, the PCB 7 receives a control signal, the control motor 4 is electrified to work, the motor 4 drives the gear set 3 to rotate, the output end of the gear set 3 and a valve body valve rod connected with the output end of the gear set 3 are driven to synchronously rotate, and intelligent opening, closing and flow regulation of the valve body valve are realized through the control actuator; the fixing piece 8 can limit the fixing position of the motor 4, and the stable assembly of the motor 4 and the shell is ensured;

in this embodiment, the motor 4 is a brushless motor, and has good electromagnetic compatibility; the PCB 7 and the fixing piece 8 are both fixed and disassembled with the shell through bolts, so that the assembly is convenient and fast, and the disassembly, assembly and maintenance of the PCB 7 and the fixing piece 8 are facilitated;

referring to fig. 7, 9 and 10, in the present embodiment, the gear set 3 includes a first gear 31, a second gear 32, a third gear 33, a fifth gear 35, a sixth gear 36 and a fourth gear 34, which are sequentially engaged with each other; the first gear 31 is sleeved on an output shaft of the motor 4; the second gear 32, the third gear 33, the fifth gear 35 and the sixth gear 36 are all arranged in the accommodating space through rotating shafts; the bottom end of the gear fourth 34 is provided with a lower end part for supporting the gear fourth 34 to rotate, the lower end part of the gear fourth 34 extends to the opening part 14 to form an output end of the whole gear set 3, and the lower end part of the gear fourth 34 is provided with a spline groove facing the opening part 14; the dynamic sealing ring 5 is sleeved at the outer side of the lower end part of the gear four 34 and is in abutting connection with the machine shell 1; the second gear 32, the third gear 33, the fifth gear 35 and the sixth gear 36 are all T-shaped gears, the diameter of an upper-section toothed ring of the second gear 32 is larger, the diameter of a lower-section toothed ring is smaller, the diameter of an upper-section toothed ring of the third gear 33 is larger, the diameter of a lower-section toothed ring is smaller, the diameter of an upper-section toothed ring of the fifth gear 35 is smaller, the diameter of a lower-section toothed ring is larger, the diameter of an upper-section toothed ring of the sixth gear 36 is larger, and the diameter of a lower-section toothed ring is smaller; when the first gear 31, the second gear 32, the third gear 33, the fifth gear 35, the sixth gear 36 and the fourth gear 34 are sequentially assembled, the first gear 31 is meshed with an upper section toothed ring of the second gear 32, a lower section toothed ring of the second gear 32 is meshed with an upper section toothed ring of the third gear 33, a lower section toothed ring of the third gear 33 is meshed with a lower section toothed ring of the fifth gear 35, an upper section toothed ring of the fifth gear 35 is meshed with an upper section toothed ring of the sixth gear 36, and a lower section toothed ring of the sixth gear 36 is meshed with the fourth gear 34, so that after assembly, the transmission ratio of the gear set 3 can be ensured, the overall occupied space of the gear set 3 can be reduced, the overall size of the control actuator can be optimized, the volume of the control actuator can be reduced, and the assembly and use of the control actuator can be facilitated;

referring to fig. 8, in the present embodiment, the positioning portion for limiting the gear set 3 on the cover body 2 includes a first positioning seat 23 and a second positioning seat 24; the first positioning seat 23 is used for limiting the movement of the rotating shafts of the second gear 32, the third gear 33, the fifth gear 35 and the sixth gear 36; the second positioning seat 24 is used for limiting the movement of the fourth gear 34; a through hole for accommodating the rotating shafts of the second gear 32, the third gear 33, the fifth gear 35 and the sixth gear 36 is formed in the first positioning seat 23, and a concave groove for accommodating the upper end part of the fourth gear 34 is formed in the second positioning seat 24.

To sum up, the utility model provides a control executor for electric automobile, through adopting dynamic seal 5, can make the gear train 3 output and the valve body valve rod of control executor be connected the back, ensure that motor 4 drives 3 rotation in-process of gear train, remain throughout the inseparable laminating of 3 outputs of gear train and casing, inside dust in the environment of avoiding, steam gets into the casing from the gap between 3 outputs of gear train and the casing, make control executor have good dustproof, water-proof effects, the life of control executor has been prolonged.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. A control actuator for an electric automobile comprises a shell, a motor (4) and a gear set (3), wherein a containing space is formed in the shell, the motor (4) is arranged in the containing space, and the gear set is arranged in the containing space and connected with the motor (4); the method is characterized in that: still including setting up dynamic seal circle (5) at gear train (3) output, make gear train (3) output keep closely laminating with the casing all the time at rotatory in-process.

2. The control actuator for an electric vehicle according to claim 1, wherein: the shell comprises a shell (1) and a cover body (2); the machine shell (1) and the cover body (2) are tightly attached, and a containing space is formed in the machine shell (1); the connection part of the shell (1) and the cover body (2) is hermetically connected in a laser welding mode.

3. The control actuator for an electric vehicle according to claim 2, wherein: the outer surface of the machine shell (1) is provided with a convex wiring part (13) and an opening part (14) for accommodating the output end of the gear set (3); wiring portion (13) are established to hollow structure, and are equipped with electrically conductive through-hole between the cavity of wiring portion (13) and the storage space.

4. The control actuator for an electric vehicle according to claim 2, wherein: and the cover body (2) is provided with a positioning part for limiting the gear set (3).

5. The control actuator for an electric vehicle according to claim 3, wherein: the accommodating space is internally provided with a conductive part (6) connected with the motor (4), and one end of the conductive part (6) penetrates through the conductive through hole and extends into the hollow cavity of the wiring part (13).

6. The control actuator for an electric vehicle according to claim 5, wherein: the upper side of the motor (4) is also provided with a fixing piece (8) for fixing the motor (4) and a PCB (7) for controlling the motor (4) to be automatically opened and closed; the fixing piece (8) is positioned below the PCB (7).

7. The control actuator for an electric vehicle according to claim 5, wherein: the gear set (3) comprises a first gear (31), a second gear (32), a third gear (33) and a fourth gear (34) which are meshed in sequence; the first gear (31) is sleeved on an output shaft of the motor (4); the second gear (32) and the third gear (33) are arranged in the accommodating space through rotating shafts; the bottom end of the gear four (34) is provided with a lower end part for supporting the gear four (34) to rotate, the lower end part of the gear four (34) extends to the opening part (14) to form an output end of the whole gear set (3), and the lower end part of the gear four (34) is provided with a spline groove facing the opening part (14); and the dynamic sealing ring (5) is sleeved at the outer side of the lower end part of the gear four (34) and is in abutting connection with the machine shell (1).

8. The control actuator for an electric vehicle according to claim 6, wherein: the gear set (3) comprises a first gear (31), a second gear (32), a third gear (33), a fifth gear (35), a sixth gear (36) and a fourth gear (34) which are meshed in sequence; the first gear (31) is sleeved on an output shaft of the motor (4); the second gear (32), the third gear (33), the fifth gear (35) and the sixth gear (36) are all arranged in the accommodating space through rotating shafts; the bottom end of the gear four (34) is provided with a lower end part for supporting the gear four (34) to rotate, the lower end part of the gear four (34) extends to the opening part (14) to form an output end of the whole gear set (3), and the lower end part of the gear four (34) is provided with a spline groove facing the opening part (14); and the dynamic sealing ring (5) is sleeved at the outer side of the lower end part of the gear four (34) and is in abutting connection with the machine shell (1).

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