Electric control type gear shifting device and gearbox thereof

Abstract

The utility model discloses an electric control type gear shifting device and a gearbox thereof, the gear shifting device is fixedly installed on a gearbox shell, and the gear shifting device comprises a motor control assembly, a motor assembly, a connecting piece, a transmission assembly, a shell and a gear shifting poking finger; the motor control assembly is electrically connected with the motor assembly; the connecting piece is in gear meshing connection with a rotating shaft of the motor assembly, the transmission assembly is fixedly connected with the connecting piece, and the transmission assembly is configured to be capable of driving the transmission assembly to rotate or move through the motor assembly and the connecting piece; the shell is provided with a mounting surface, and the mounting surface is used for being matched with a gearbox so as to mount the gear shifting device on the gearbox; the accommodating cavity is positioned on one side of the mounting surface; the gear shifting poking finger is provided with a poking finger handle, the gear shifting poking finger is rotationally installed on the shell and meshed with the transmission assembly, and a poking finger rotating shaft of the gear shifting poking finger is located on the other side, away from the containing cavity, of the installation face. The length of the shifting finger can be greatly reduced, the transmission efficiency of the shifting finger is improved, and the installation space is reduced.

Description

Technical Field

[0001] The utility model relates to the field of gear shifting, in particular to an electronically controlled gear shifting device and a gearbox thereof. Background Art

[0002] Currently, most electronically controlled shifters on the market are divided into two types: built-in and external. While built-in shifters offer better overall performance, they require redesign and relocation for each gearbox, resulting in poor versatility of the shift actuator and significant maintenance difficulties. External shifters, on the other hand, are easy to install, versatile, and simple to maintain, making them more widely used among electronically controlled shifters. While external shifters have their own unique advantages, their mounting surface is on the gearbox housing, and the shifter motor is located farther from the gearbox shift shaft. Direct connection results in reduced shifting accuracy, lower torque transmission efficiency, and increased likelihood of jamming. To avoid these issues, many manufacturers typically add transition mechanisms to the gearbox. This increases the installation space and costs of the electronically controlled shifter, resulting in lower product competitiveness.

[0003] Therefore, in response to the above-mentioned problems, it is necessary to provide a new technical solution. Utility Model Content

[0004] To address at least one of the technical problems in the prior art, the present invention provides an electronically controlled shifting device and its transmission that significantly reduces the length of the shift finger, thereby improving the transmission efficiency of the electronically controlled shifting device and reducing the installation space of the electronically controlled shifting device. The specific technical solution is as follows:

[0005] On the one hand, the utility model provides an electronically controlled shifting device, comprising a motor control assembly, a motor assembly, a connecting member, a transmission assembly, a housing, and a shift finger;

[0006] The motor control assembly is electrically connected to the motor assembly;

[0007] The connecting member is meshedly connected with the rotating shaft gear of the motor assembly, and the transmission assembly is fixedly connected to the connecting member. The transmission assembly is configured to drive the transmission assembly to rotate or move through the motor assembly and the connecting member, and a first meshing structure is provided on the transmission assembly;

[0008] The housing is provided with an accommodating cavity, in which at least the transmission assembly is accommodated; a mounting surface is provided on the housing, and the mounting surface is used to cooperate with the gearbox so as to mount the shifting device on the gearbox; the accommodating cavity is located on one side of the mounting surface;

[0009] The shift finger is provided with a finger handle and a second engaging structure. The shift finger is rotatably mounted on the housing through the finger rotating shaft. The second engaging structure on the shift finger is engaged with the first engaging structure. The finger rotating shaft of the shift finger is located on the other side of the mounting surface away from the accommodating cavity.

[0010] As a preferred solution of the electronically controlled shifting device of the present invention, the transmission assembly includes a screw and a rack component;

[0011] The screw is fixedly mounted on the connecting piece, and the axial direction of the screw is consistent with the axial direction of the rotating shaft of the motor assembly;

[0012] The rack component is provided with a through hole, the inner wall of the through hole is provided with an internal thread matching the external thread on the screw, the first meshing structure is a first rack, the length direction of the first rack is consistent with the length direction of the through hole, the rack component is threadedly connected to the screw through the through hole, and the rack component is configured to be movable along the length direction of the screw by rotation of the screw;

[0013] The second meshing structure is an arc-shaped tooth, and the first rack meshes with the arc-shaped tooth.

[0014] As a preferred solution of the electronically controlled shifting device of the present invention, the transmission assembly includes a worm;

[0015] The worm is fixedly mounted on the connecting piece, and the axial direction of the worm is consistent with the axial direction of the rotating shaft of the motor assembly;

[0016] The first meshing structure is the helical teeth on the worm, and the second meshing structure is the turbine teeth matching the helical teeth, and the helical teeth mesh with the turbine teeth.

[0017] As a preferred embodiment of the electronically controlled shifting device of the present invention, the connecting member is an internal gear, a ring gear meshing with the internal gear is provided on the rotating shaft of the motor assembly, and the internal gear is configured to rotate synchronously with the rotating shaft of the motor assembly;

[0018] The transmission assembly is fixedly mounted on the internal gear.

[0019] Further preferably, the number of teeth of the internal gear is greater than the number of teeth of the ring gear.

[0020] As a preferred solution of the electronically controlled shifting device described in the present invention, a rotating member mounting seat is fixedly provided on the housing, and the shift finger is rotatably mounted on the rotating member mounting seat through the finger rotating shaft. The first part of the rotating member mounting seat is located on the side of the mounting surface away from the accommodating cavity, and the finger rotating shaft is mounted on the first part of the rotating member mounting seat.

[0021] As a preferred solution of the electronically controlled shifting device described in the present invention, a first external thread is provided on the shift finger rotating shaft, a rotating hole is provided on the shift finger and is sleeved on the shift finger rotating shaft, an internal thread matching the first external thread is provided on the inner wall of the rotating hole, and the shift finger rotating shaft and the shift finger are connected by threads.

[0022] As a preferred solution of the electronically controlled shifting device of the present invention, the mounting surface of the housing is provided with a mounting hole at least at a position corresponding to the first engaging structure on the transmission assembly; the second engaging structure on the shift finger engages with the first engaging structure through the mounting hole.

[0023] On the one hand, the utility model provides a gearbox, which includes a gearbox housing and a shifting device as described in the above technical solution, wherein the shifting device is fixedly mounted on the gearbox housing;

[0024] A shift device mounting hole is provided on the transmission housing, and the shift finger handle is sunk into the transmission housing through the shift device mounting hole;

[0025] The gearbox housing is provided with a gearbox shift shaft and a shift fork. The shift fork is sleeved on the gearbox shift shaft and can move along the length direction of the gearbox shift shaft.

[0026] The shift fork is provided with a finger groove, and the end of the finger lever is accommodated in the finger groove.

[0027] As a preferred embodiment of the gearbox of the present invention, a mounting hole is formed on the mounting surface of the housing at least at a position corresponding to the first meshing structure on the transmission assembly, a rotating member mounting seat is provided on the mounting surface, the shift finger is rotatably mounted on the rotating member mounting seat, a first portion of the rotating member mounting seat is located on a side of the mounting surface away from the accommodating cavity, and a rotating shaft of the shift finger is mounted on the first portion of the rotating member mounting seat;

[0028] The first part of the rotating member mounting seat extends into the transmission case through the shift device mounting hole.

[0029] As a preferred solution of the gearbox of the present invention, the rotating member mounting seat is connected to the mounting surface, and the height of the rotating member mounting seat is higher than the height of the mounting surface.

[0030] As a preferred solution of the gearbox described in the utility model, a gearbox mounting surface is provided on the gearbox housing, and a mounting surface that seals with the gearbox mounting surface is provided on the housing of the shifting device, and the mounting surface of the shifting device is fixedly mounted on the gearbox mounting surface of the gearbox housing.

[0031] Compared with the prior art, the technical solution of the present invention has at least one or more of the following beneficial effects:

[0032] The shifting device of this patent is mainly used for gear switching. The use of this structure solves the problems of low transmission efficiency and high failure rate caused by the long distance between the gearbox shift shaft and the motor drive shaft of the conversion device.

[0033] This device eliminates the transition device required by the long shift finger of the electronically controlled shift device in the prior art, thereby improving the market competitiveness and application prospects of the product.

[0034] This patent effectively solves the problem that the motor assembly is difficult to install in some models because the distance between the motor shaft and the gearbox shift shaft is too far. In this model, if the shift finger direct drive method is directly adopted, the length of the shift finger will inevitably increase, which will reduce the motor transmission efficiency and increase the failure rate; if the rotating structure is directly adopted, it will not only increase the installation height of the shift device but also reduce the lever arm ratio of the rotating finger, resulting in a larger output force of the motor assembly and higher motor power consumption. The structure of this patent is to sink the rotating shaft of the finger into the interior of the gearbox, so that the distance from the rotating shaft of the finger to the gearbox shift shaft is greatly shortened, the lever arm ratio of the finger is increased, and the output force of the same motor increases the force acting on the gearbox shift shaft, the shift force coverage range is expanded, and the motor power consumption is also reduced.

[0035] This patented shifting device utilizes a three-stage deceleration and distance-increasing structure consisting of an internal gear, a screw, and a rack component. Specifically, the motor output is decelerated and distance-increasing in three stages. The motor assembly's rotating shaft meshes with the internal gear, the screw meshes with the rack component, and the rack component meshes with the shift finger. This structure can significantly increase shift force, increase response time, reduce motor power consumption, and improve the mechanism's output force, allowing the shifting device to cover a wider range of models. This device can also achieve deceleration and distance-increasing effects by meshing the rotating shaft with the internal gear, rigidly connecting the worm to the internal gear, and meshing the worm with the turbine on the shift finger.

[0036] The shift finger rotating shaft of this patent is sunk into the inside of the gearbox, that is, the shift finger rotating shaft is located outside the mounting surface. Without changing the mounting method, this structure greatly shortens the length of the shift finger, improves the output force of the shift device, reduces the motor power consumption and the mechanism failure rate; and reduces the installation height of the shift mechanism, saving installation space, and improving versatility. It can match different gearboxes, thereby saving development costs.

[0037] The mounting surface, rack drive shaft and finger rotation shaft of the motor assembly of this patent are all installed on a shell without an intermediate transition structure, which can achieve the purpose of saving manufacturing costs.

[0038] The patented structural design is ingenious, simple and compact, and is conducive to vehicle assembly and subsequent maintenance.

[0039] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0041] Figure 1 It is a three-dimensional structural diagram of the conversion device described in this patent from one perspective;

[0042] Figure 2 It is a schematic diagram of the exploded structure of the conversion device described in this patent;

[0043] Figure 3 It is a schematic diagram of the three-dimensional structure of the motor control component, motor component, connector, screw, gear component, shift finger and shift finger rotating shaft in the conversion device described in this patent;

[0044] Figure 4 It is a schematic diagram of the three-dimensional structure of the conversion device described in this patent from another perspective;

[0045] Figure 5 This is a schematic diagram of the three-dimensional structure of the conversion device described in this patent from another perspective;

[0046] Figure 6 It is a three-dimensional structural diagram of part of the structure of the gearbox described in this patent;

[0047] Figure 7 It is a three-dimensional structural diagram of part of the structure of the gearbox described in this patent;

[0048] Figure 8 This is a schematic diagram of part of the internal structure of the gearbox described in this patent.

[0049] Among them, 1-motor control component, 2-motor assembly, 3-connecting part, 4-screw, 5-rack component, 6-housing, 7-shift finger, 8-transmission housing, 51-through hole, 52-first rack, 61-accommodation chamber, 62-mounting hole, 63-mounting surface, 64-fixing hole, 71-finger handle, 72-arc-shaped tooth, 73-finger rotating shaft, 81-transmission mounting surface, 82-shift device mounting hole, 83-transmission shift shaft, 84-shift fork, 85-threaded hole. DETAILED DESCRIPTION

[0050] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work are within the scope of protection of the present invention.

[0051] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," "end," "two ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0052] In the description of this utility model, unless otherwise expressly specified or limited, terms such as "provided with," "equipped with," "connected," "installed," "mounted," "opened," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0053] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention.

[0054] Please refer to Figure 1-8 .like Figure 1-8 As shown, the utility model provides an electronically controlled shifting device, comprising a motor control assembly 1 (SCU assembly), a motor assembly 2, a connector 3, a transmission assembly, a housing 6 and a shift finger 7;

[0055] The motor control component 1 is electrically connected to the motor component 2;

[0056] The connecting member 3 is meshed with the rotating shaft gear of the motor assembly 2, and the transmission assembly is fixedly connected to the connecting member. The transmission assembly is configured to be able to drive the transmission assembly to rotate or move through the motor assembly 2 and the connecting member 3. The transmission assembly is provided with a first meshing structure;

[0057] The housing 6 defines a receiving cavity 61, in which at least the transmission assembly is accommodated. The housing 6 is provided with a mounting surface 63, which is used to cooperate with the gearbox so as to mount the shifting device on the gearbox. The receiving cavity 61 is located on one side of the mounting surface 63.

[0058] The shift finger 7 is provided with a finger handle 71 and a second engaging structure. The shift finger 7 is rotatably mounted on the housing 6 via a finger rotating shaft 73. The second engaging structure on the shift finger 7 engages with the first engaging structure through the mounting hole 62. The finger rotating shaft of the shift finger 7 is located on the other side of the mounting surface 63 away from the accommodating cavity 61.

[0059] In the example, the mounting surface 63 of the housing 6 is provided with a mounting hole 62 at least at a position corresponding to the first engaging structure on the transmission assembly; the second engaging structure on the shift finger 7 passes through the mounting hole 62 and engages with the first engaging structure.

[0060] The shift finger drives the shift fork in the gearbox by rotation. The shift finger has a toothed structure that engages with the rack component, and the finger handle is directly inserted into the finger slot of the shift fork.

[0061] In this example, the mounting hole 62 is communicated with the accommodating cavity 61 .

[0062] In the example, the motor assembly 2, the connector 3 and the transmission assembly are all accommodated in the accommodating cavity.

[0063] In the example, the connecting member 3 is mounted on the rotating shaft of the motor assembly 2 through gear engagement, and the connecting member 3 is configured to rotate synchronously with the rotating shaft of the motor assembly 2 .

[0064] In the example, an opening is provided on the shell 6, the motor assembly, the connector and the transmission assembly are accommodated in the accommodating cavity of the shell through the opening, and the motor control assembly is fixedly mounted on the opening.

[0065] In a preferred embodiment, Figure 2-3 and Figure 7-8 As shown, the transmission assembly includes a screw 4 and a rack component 5;

[0066] The screw rod 4 is fixedly mounted on the connecting member 3, and the axial direction of the screw rod 4 is consistent with the axial direction of the rotating shaft of the motor assembly 2;

[0067] The rack member 5 is provided with a through hole 51, the inner wall of which is provided with an internal thread matching the external thread on the screw 4. The first meshing structure is a first rack 52, the length direction of the first rack 52 is consistent with the length direction of the through hole 51, and the rack member 5 is threadedly connected to the screw 4 through the through hole 51. The rack member 5 is configured to be movable along the length direction of the screw by the rotation of the screw 4;

[0068] The second meshing structure on the shift finger 7 is an arc-shaped tooth 72 , and the first rack 52 meshes with the arc-shaped tooth 72 .

[0069] Preferably, the connecting member 3 is an internal gear, and a ring gear meshing with the internal gear is provided on the rotating shaft of the motor assembly 2. The internal gear is configured to rotate synchronously with the rotating shaft of the motor assembly 2. The screw 4 is fixedly mounted on the end of the internal gear away from the motor assembly. Further preferably, the number of teeth on the internal gear is greater than the number of teeth on the ring gear.

[0070] In the example, the internal gear is riveted to the screw rod 4. In the example, the rack component 5 is accommodated in the accommodating cavity, and the inner wall of the accommodating cavity stops the rack component 5 from rotating.

[0071] This patented shifting device, by setting up a three-stage deceleration and torque-increasing structure of internal gear, screw and rack components, greatly improves the shifting force while reducing motor power consumption and increasing the output force of the mechanism, making its shifting device cover more models. Figure 7-8 As shown, the rotating shaft of the motor assembly is engaged with the internal gear, and the rotating shaft of the motor assembly drives the internal gear to rotate. The internal gear is rigidly connected to the screw. Driven by the internal gear, the screw rotates, thereby pushing the rack component that cooperates with the screw thread to move linearly. The rack component and the arc-shaped teeth of the shift finger are engaged with gears. Driven by the arc-shaped teeth, the shift finger rotates around the rotating shaft, thereby driving the shift fork in the gearbox to move linearly along the gearbox shift shaft, thereby realizing speed reduction and torque increase shifting.

[0072] This conversion device is installed on the gearbox housing and connects the HCU (i.e., vehicle or gearbox control unit) to the motor control component via the CAN signal line. The HCU transmits the shift command to the motor control component via the CAN signal line, and the motor control component controls the rotation of the motor component 2. Figure 3 As shown, the motor assembly and the screw convert the rotational motion of the rotating shaft in the motor assembly into the rotational motion of the screw through the internal gear. The rotational motion of the screw is converted into the linear motion of the rack component through the thread transmission. The linear motion of the rack component drives the rotational motion of the shift finger. In this series of transmission processes, the motor's angle sensor provides real-time feedback on the rotation angle of the shift finger according to the program definition, thereby calculating the shift position.

[0073] In another preferred embodiment, the transmission assembly includes a worm (not shown);

[0074] The worm is fixedly mounted on the connecting member 3, and the axial direction of the worm is consistent with the axial direction of the rotating shaft of the motor assembly 2;

[0075] The first meshing structure is the helical teeth on the worm, and the second meshing structure is the turbine teeth matching the helical teeth, and the helical teeth mesh with the turbine teeth.

[0076] Preferably, the connecting member 3 is an internal gear, and a ring gear meshing with the internal gear is provided on the rotating shaft of the motor assembly 2. The internal gear is configured to rotate synchronously with the rotating shaft of the motor assembly 2. The worm is fixedly mounted on the end of the internal gear away from the motor assembly. Further preferably, the number of teeth on the internal gear is greater than the number of teeth on the ring gear.

[0077] The rotating shaft of the motor assembly of the device is meshed with the internal gear, the worm is rigidly connected to the internal gear, and the worm is meshed with the turbine on the shift finger to achieve the effect of deceleration and torque increase.

[0078] This conversion device is mounted on the transmission housing and connects the HCU (i.e., the vehicle or transmission control unit) to the motor control unit via a CAN signal line. The HCU transmits shift commands to the motor control unit via the CAN signal line. The motor control unit controls the rotation of motor assembly 2. The motor assembly and worm gear use internal gears to convert the rotational motion of the motor assembly's shaft into the rotational motion of the worm gear. The rotational motion of the worm gear rotates through the helical teeth, driving the gearshift finger's worm gear to rotate. During this series of transmission processes, the motor's rotation angle sensor provides real-time feedback on the rotation angle of the shift finger according to the program definition, thereby calculating the shift position.

[0079] In a preferred embodiment, Figure 1-2 and Figure 4 As shown, a rotating member mounting seat is provided on the housing 6, and the shift finger 7 is rotatably mounted on the rotating member mounting seat through the finger rotating shaft 73. The first part of the rotating member mounting seat is located on the side of the mounting surface 63 away from the accommodating cavity 61, and the finger rotating shaft 73 is mounted on the first part of the rotating member mounting seat.

[0080] Preferably, a rotating member mounting base is fixedly provided on the housing 6, and the shift finger 7 is rotatably mounted on the rotating member mounting base via a finger rotating shaft 73. Specifically, the rotating member mounting base defines a rotating shaft mounting hole, into which the finger rotating shaft 73 is rotatably mounted, and the shift finger 7 is sleeved onto the finger rotating shaft 73. In this example, the finger rotating shaft 73 is provided with a first external thread, and the shift finger 7 defines a rotating hole that sleeves onto the finger rotating shaft 73. The inner wall of the rotating hole is provided with an internal thread that matches the first external thread, and the finger rotating shaft 73 and the shift finger 7 are threadedly connected. This prevents the shift finger 7 and the finger rotating shaft 73 from rotating relative to each other.

[0081] Preferably, the surface of the housing 6 in which the mounting hole 62 is formed serves as a mounting surface 63. The rotating member mounting seat and mounting surface 63 are located on the same side of the housing, with the rotating member mounting seat being higher than the mounting surface. In this example, the rotating member mounting seat and mounting surface 63 are integrally formed. The shift finger rotation axis is located outside the mounting surface, meaning that the shift finger rotation axis is recessed within the transmission. Without changing the mounting method, this structure significantly shortens the length of the shift finger, improves the output force of the shifting device, reduces motor power consumption, and reduces the failure rate of the mechanism. Furthermore, the shift finger can be completely recessed within the transmission housing, saving installation space for the entire shifting device.

[0082] The gear shift device of this patent is fixedly installed on the gearbox. The gearbox provided by this patent, such as Figure 6-8 As shown, it at least includes a gearbox housing 8 and a shifting device as described in the above technical solution, and the shifting device is fixedly mounted on the gearbox housing 8;

[0083] A shift device mounting hole 82 is provided on the transmission housing, and the finger lever 71 is sunk into the transmission housing through the shift device mounting hole 82;

[0084] At least a gearbox shift shaft 83 and a shift fork 84 are provided in the gearbox housing. The shift fork 84 is sleeved on the gearbox shift shaft 83 and can move along the length direction of the gearbox shift shaft 83.

[0085] The shift fork 84 is provided with a finger groove, and the end of the finger lever 71 is accommodated in the finger groove.

[0086] In a preferred example, a mounting hole 62 is formed on the mounting surface 63 of the housing 6 at least at a position corresponding to the first engaging structure on the transmission assembly. A rotating member mounting seat is provided on the mounting surface 63. The first portion of the rotating member mounting seat is located on a side of the mounting surface 63 away from the accommodating cavity 61. The shift finger rotating shaft 73 is mounted on the first portion of the rotating member mounting seat. The shift finger 7 is sleeved on the shift finger rotating shaft 73.

[0087] The first portion of the rotating member mounting base is recessed into the transmission housing through the shift mechanism mounting hole 82. The shift finger's rotation axis is located outside the actuator housing's mounting surface, on the side of the housing facing away from the transmission mechanism. This reduces shift finger length and increases shifting force. This arrangement also reduces overall installation height, saving installation space.

[0088] Further preferably, the rotating member mounting base is connected to the housing mounting surface 63, with the height of the rotating member mounting base being higher than the height of the mounting surface. In this example, the rotating member mounting base is integrally connected to the housing mounting surface 63. The rotating member mounting base is connected to the housing and is raised above the mounting surface so that it can be sunk into the transmission, allowing the rotating member to rotate within the hole with the shift finger.

[0089] Further preferably, a gearbox mounting surface 81 is provided on the gearbox housing 8, and a mounting surface 63 sealingly fitted with the gearbox mounting surface 81 is provided on the gearbox housing 6, and the mounting surface of the gearbox is fixedly mounted on the gearbox mounting surface 81 of the gearbox housing.

[0090] In specific examples, such as Figure 7 As shown, the finger rotation shaft 73 is installed below the gearbox mounting surface, which can reduce the finger length and increase the shifting force. At the same time, this arrangement reduces the overall installation height and saves installation space.

[0091] In the example, Figure 6 As shown, the shift device is fixedly mounted on the transmission housing, and the mounting structure is simple. The mounting surface of the shift device fits the mounting surface of the transmission. A through fixing hole 64 is provided on the housing of the shift device, and a threaded hole 85 is provided on the transmission housing. First, two positioning pins are used for precise positioning. Of course, more than one pin can be used, and this patent does not limit it. Then, the nut is passed through the fixing hole and screwed into the threaded hole.

[0092] The shifting device of this patent is primarily intended for hybrid transmissions, particularly DHT or AMT transmissions, but is not limited thereto. The shifting device can achieve automatic shifting of gears and power modes based on the actual needs of the vehicle. For example, the shifting device incorporates two sets of actuators: one for shifting transmission gears and the other for switching hybrid transmission modes, i.e., output power switching.

[0093] It should be noted that, in the absence of conflict, the above embodiments or all features in the embodiments may be freely combined.

[0094] In the description of this specification, the reference terms "one embodiment", "some embodiments", "further embodiment", "another embodiment", "other embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0095] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify and modify the above embodiments within the scope of the present invention.

Claims

1. An electronically controlled shifting device, characterized in that: It comprises a motor control component (1), a motor component (2), a connecting member (3), a transmission component, a housing (6) and a shift finger (7); The motor control component (1) is electrically connected to the motor component (2); The connecting member (3) is meshedly connected with the rotating shaft gear of the motor assembly (2), and the transmission assembly is fixedly connected to the connecting member. The transmission assembly is configured to be able to drive the transmission assembly to rotate or move through the motor assembly (2) and the connecting member (3), and a first meshing structure is provided on the transmission assembly; The housing (6) is provided with a receiving cavity (61), and at least the transmission assembly is received in the receiving cavity (61); a mounting surface (63) is provided on the housing (6), and the mounting surface (63) is used to cooperate with the gearbox so as to mount the shifting device on the gearbox; the receiving cavity (61) is located on one side of the mounting surface (63); The shift finger (7) is provided with a finger handle (71) and a second meshing structure. The shift finger (7) is rotatably mounted on the housing (6) via a finger rotation shaft (73). The second meshing structure on the shift finger (7) meshes with the first meshing structure. The finger rotation shaft of the shift finger (7) is located on the other side of the mounting surface (63) away from the accommodating cavity (61).

2. The electronically controlled shifting device according to claim 1, characterized in that: The transmission assembly includes a screw (4) and a rack component (5); The screw rod (4) is fixedly mounted on the connecting member (3), and the axial direction of the screw rod (4) is consistent with the axial direction of the rotating shaft of the motor assembly (2); The rack component (5) is provided with a through hole (51), the inner wall of the through hole (51) is provided with an internal thread matching the external thread on the screw (4), the first meshing structure is a first rack (52), the length direction of the first rack (52) is consistent with the length direction of the through hole (51), the rack component (5) is threadedly connected to the screw (4) through the through hole (51), and the rack component (5) is configured to be able to move along the length direction of the screw by rotating the screw (4); The second meshing structure is an arc-shaped tooth (72), and the first rack (52) meshes with the arc-shaped tooth (72).

3. The electronically controlled shifting device according to claim 1, wherein: The transmission assembly includes a worm gear; The worm is fixedly mounted on the connecting member (3), and the axial direction of the worm is consistent with the axial direction of the rotating shaft of the motor assembly (2); The first meshing structure is the helical teeth on the worm, and the second meshing structure is the turbine teeth matching the helical teeth, and the helical teeth mesh with the turbine teeth.

4. The electronically controlled shifting device according to any one of claims 1 to 3, characterized in that: The connecting member (3) is an internal gear, and a ring gear meshing with the internal gear is provided on the rotating shaft of the motor assembly (2), and the internal gear is configured to rotate synchronously with the rotating shaft of the motor assembly (2); The transmission assembly is fixedly mounted on the internal gear.

5. The electronically controlled shifting device according to claim 4, characterized in that: The number of teeth of the internal gear is greater than the number of teeth of the ring gear.

6. The electronically controlled shifting device according to claim 1, characterized in that: A rotating member mounting seat is provided on the housing (6), and the shift finger (7) is rotatably mounted on the rotating member mounting seat via a finger rotating shaft (73). The first portion of the rotating member mounting seat is located on a side of the mounting surface (63) away from the accommodating cavity (61), and the finger rotating shaft (73) is mounted on the first portion of the rotating member mounting seat.

7. The electronically controlled shifting device according to claim 6, characterized in that: A first external thread is provided on the finger rotating shaft (73); a rotating hole sleeved on the finger rotating shaft (73) is provided on the shift finger (7); an internal thread matching the first external thread is provided on the inner wall of the rotating hole; the finger rotating shaft (73) and the shift finger (7) are connected via threads.

8. The electronically controlled shifting device according to claim 1, wherein: The mounting surface (63) of the housing (6) is provided with a mounting hole (62) at least at a position corresponding to the first engaging structure on the transmission assembly; the second engaging structure on the shift finger (7) passes through the mounting hole (62) and engages with the first engaging structure.

9. A gearbox, characterized in that: It comprises a gearbox housing (8) and a shifting device according to any one of claims 1 to 8, wherein the shifting device is fixedly mounted on the gearbox housing (8); A shift device mounting hole (82) is provided on the transmission housing, and the finger lever (71) is sunk into the transmission housing through the shift device mounting hole (82); A gearbox shift shaft (83) and a shift fork (84) are provided in the gearbox housing. The shift fork (84) is sleeved on the gearbox shift shaft (83) and is capable of moving along the length direction of the gearbox shift shaft (83). A shift finger groove is provided on the shift fork (84), and the end of the shift finger handle (71) is accommodated in the shift finger groove.

10. The gearbox according to claim 9, characterized in that The mounting surface (63) of the housing (6) is provided with a mounting hole (62) at least at a position corresponding to the first engaging structure on the transmission assembly, a rotating member mounting seat is provided on the mounting surface (63), a first portion of the rotating member mounting seat is located on a side of the mounting surface (63) away from the accommodating cavity (61), and a finger rotation shaft (73) is mounted on the first portion of the rotating member mounting seat; The first part of the rotating member mounting seat is sunk into the transmission case through the transmission shift device mounting hole (82).

11. The gearbox according to claim 10, characterized in that The rotating member mounting seat is connected to the mounting surface (63), and the height of the rotating member mounting seat is higher than the height of the mounting surface.

12. The gearbox according to any one of claims 9 to 11, characterized in that: A transmission housing (8) is provided with a transmission mounting surface (81), a housing (6) of the shifting device is provided with a mounting surface (63) that is sealed and fitted with the transmission mounting surface (81), and the mounting surface (63) of the shifting device is fixedly mounted on the transmission mounting surface (81) of the transmission housing.

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