CN214466018U

CN214466018U - Dual-switch redundancy structure of electronic gear shifter

Info

Publication number: CN214466018U
Application number: CN202120309179.4U
Authority: CN
Inventors: 王小松; 刘齐
Original assignee: Ningbo Auto Cable Controls Co Ltd
Current assignee: Ningbo Auto Cable Controls Co Ltd
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2021-10-22
Anticipated expiration: 2031-02-03

Abstract

The utility model discloses a double-switch redundancy structure of an electronic gear shifter, which comprises a shell, wherein a knob component is rotatably arranged in the middle of the shell in a penetrating way, the lower end of the knob component is connected with a gear rack, the lower end surface of the shell is provided with a PCB (printed circuit board), and two sides of the gear rack are provided with two magnets which are symmetrically distributed along the axis; the PCB board is located the top of magnet, and the lower terminal surface symmetry of PCB board be equipped with two sets of and two magnet one-to-one's hall sensor, and when knob subassembly drove gear frame rotation to shift to the position of settlement, hall sensor received the magnet signal and with signal transfer to the master controller of selector to realize the gear and switch. The utility model discloses a two redundant structures of switch of electron selector, it sets up two sets of switch module in selector inner structure, increases a set of stand-by switch promptly more, and life produces, simple structure, easy dismounting.

Description

Dual-switch redundancy structure of electronic gear shifter

Technical Field

The utility model belongs to the technical field of car selector technique and specifically relates to a two redundant structures of switch of electron selector.

Background

The automobile gear shifter is a necessary component in an automobile control system, and the gear shifter is matched with a gearbox to finish the matching of the rotating speed of an automobile engine and the rotating speed of wheels through the action of hands, so that the automobile can give consideration to both large torque in low-speed running and high speed in high-speed running.

At present, the knob gear shifter is more and more widely applied, namely, the corresponding gear shifting can be realized by rotating the knob, and in the knob gear shifter, corresponding inductive switches are usually arranged in the internal structure of the knob gear shifter and are used for sensing the rotation signal of the knob and realizing the control switching of the corresponding gear. In current selector, only set up a set of switch module usually to the structure is comparatively complicated, and the dismouting is inconvenient, and this kind of structure in case the switch module trouble takes place so will lead to whole selector can't shift the operation, need maintain the change, reduces the life of selector.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: in order to overcome the defects of the prior art, the dual-switch redundancy structure of the electronic gear shifter is provided, two groups of switch assemblies are arranged in the internal structure of the gear shifter, namely, one group of standby switches are additionally arranged, and the service life is prolonged.

The utility model adopts the technical proposal that: the double-switch redundancy structure of the electronic gear shifter comprises a shell, wherein a knob assembly is rotatably arranged in the middle of the shell in a penetrating mode, the lower end of the knob assembly is connected with a gear rack, a PCB is arranged on the lower end face of the shell, and two magnets symmetrically distributed along the axis are arranged on two sides of the gear rack; the PCB is located above the magnets, two groups of Hall sensors which correspond to the two magnets one to one are symmetrically arranged on the lower end face of the PCB, and when the knob assembly drives the gear rack to rotate and shift to a set position, the Hall sensors receive magnet signals and transmit the signals to a master controller of the gear shifter so as to achieve gear shifting.

Compared with the prior art, the utility model has the following advantage:

the utility model discloses a two switch redundant structures of electronic selector, the inside symmetry of casing has set up two switch module, and one set of two switch module is as reserve, when arbitrary one switch module broke down, then another redundant not broken down switch module can accomplish shift signal's receipt and transmission, guarantees the normal use of rotatory gear shift; compared with the traditional single switch assembly structure, a redundant switch group is arranged, so that the shifter has higher safety performance and longer service life.

As the improvement, the both sides wall of gear frame lower extreme is equipped with two mounting panels along axis symmetry, two magnet detachable respectively installs on two mounting panels. Magnet detachable installs on the mounting panel structure in this structure, simple to operate, removable connected mode also can be better in the change of realization magnet in subsequent maintenance.

And the upper end of the mounting plate is provided with a containing groove for assembling the magnet and a limiting part for driving the magnet to be fixed and limited in the containing groove. In the secondary improved structure, the magnet is assembled in the corresponding accommodating groove structure, and is limited by the limiting part, so that the magnet is prevented from being separated from the accommodating groove, the mounting structure is simple, and the positioning is stable.

And the magnet is arranged in the accommodating groove, and the limiting part comprises at least two elastic limiting blocks arranged on two sides of the accommodating groove, the upper end of one side, close to the magnet, of each elastic limiting block is provided with a limiting clamping jaw which protrudes outwards, and when the magnet is arranged in the accommodating groove, the limiting clamping jaws are matched with the outer edge of the upper end face of the magnet. In the secondary improved structure, the elastic limiting block is selected as the limiting part for fixing the magnet, so that the structure is simple, and the limiting effect is stable and effective; and the elastic limiting block has certain elasticity, can elastically deform after being stressed, and is convenient for the installation and the replacement of the magnet.

And in addition, one side of the upper end of each elastic limiting block, which is close to the magnet, is also provided with a guide inclined plane. In the secondary improved structure, after the guide inclined plane is arranged, the magnet has better guide effect in the initial stage of being arranged in the accommodating groove, so that the resistance can be reduced, and the installation is convenient.

And the inner side wall of the accommodating groove is circumferentially provided with a plurality of reinforcing ribs, and the inner side walls of the plurality of reinforcing ribs are respectively abutted against the outer side wall of the magnet. In the structure, the whole structure strength of the accommodating groove is increased after the plurality of reinforcing rib structures are arranged on the inner wall of the accommodating groove, the contact area between the outer side wall of the magnet and the accommodating groove is reduced, the corresponding friction force is reduced, and the efficiency of dismounting the magnet is improved.

And in a further improvement, the bottom of the accommodating groove is provided with a through hole. In this improvement structure, increase a through-hole in the bottom of storage tank, mainly be for conveniently changing magnet, can stretch into ejector pin mechanism from the below of through-hole when changing magnet, make magnet easily break away from the storage tank.

Drawings

Fig. 1 is a schematic structural diagram of a dual-switch redundancy structure of the electronic shifter of the present invention.

Fig. 2 is an exploded view of the dual switch redundancy of the electronic shifter of the present invention.

Fig. 3 is another perspective exploded view of the dual switch redundancy configuration of the electronic shifter of the present invention.

Fig. 4 is a schematic structural view of a mounting plate portion on a gear rack in the present invention.

The device comprises a shell 1, a knob assembly 2, a gear rack 3, a PCB 4, a magnet 5, a Hall sensor 6, a mounting plate 7, a containing groove 7.1, a reinforcing rib 7.2, a through hole 7.3, an elastic limiting block 8, a limiting claw 8.1 and a guide inclined plane 8.2.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

In the description of the present invention, it should be noted that the terms "middle part", "lower end", "above", "upper end", "bottom", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, 2, 3, the utility model provides a pair of dual switch redundant structure of electron selector, including casing 1, the mounting hole has been seted up at casing 1's middle part, rotates in the mounting hole and wears to be equipped with knob subassembly 2, and is specific, this casing 1 when the installation with the well accuse platform structure part fixed connection of car, but and knob subassembly 2 rotates relatively for casing 1 to the operation of shifting is carried out in the rotation that realizes through knob subassembly 2. More specifically, the lower end of the knob assembly 2 is connected with a gear rack 3, the lower end surface of the shell 1 is provided with a PCB 4, and two sides of the gear rack 3 are provided with two magnets 5 which are symmetrically distributed along the axis; the PCB 4 is located the top of magnet 5, and the lower terminal surface symmetry of PCB 4 be equipped with two sets ofly with two hall sensor 6 of magnet 5 one-to-one, when knob subassembly 2 drove gear frame 3 rotation and shifts to the position of settlement, hall sensor 6 received magnet 5 signal and with signal transfer to the total controller of selector to realize the gear and switch.

The rotary shifting process of the shifter in the embodiment is divided into R, N, D gears, and a push type P gear button is arranged in the middle of a knob. Correspondingly, each group of hall sensors 6 on the PCB comprises three independent sensors, and the three sensors respectively correspond to R, N, D gears of the automobile; when the knob is rotated to a corresponding gear position, the corresponding sensor receives a signal of the corresponding magnet 5 on the gear rack 3, and then the signal is transmitted to the controller to drive the automobile power system to be switched to the corresponding gear.

In this embodiment, more specifically, set up two switch module of symmetry, two sets of hall sensor 6 and two magnet 5 that correspond promptly, each magnet 5 constitutes a switch module with a set of hall sensor 6, and in two switch module structures, when rotating to shift gears, only need a set of normal operating that can realize rotating to shift gears of opening. Therefore, in this structure, two switch assemblies are essentially used as one set for normal use and the other set for standby, i.e., a dual-switch redundancy structure is formed.

When any group fails in the switching process, the other redundant switch assembly which does not fail can complete the receiving and transmitting of the gear shifting signal, and the normal use of rotary gear shifting is ensured. Compared with the traditional single switch assembly structure, a redundant switch group is arranged, so that the shifter has higher safety performance and longer service life.

As shown in fig. 2 and 4, in this embodiment, two mounting plates 7 are symmetrically arranged on two side walls of the lower end of the gear rack 3 along the axis, two magnets 5 are detachably mounted on the two mounting plates 7 respectively, and in the structure, the two mounting plates 7 and the gear rack 3 are in an integrated injection molding structure, so that the processing is convenient, and the structural stability is strong. Specifically, the upper end of the mounting plate 7 is provided with a containing groove 7.1 for assembling the magnet 5 and a limiting part for driving the magnet 5 to be fixed and limited in the containing groove.

Furthermore, the limiting part comprises at least two elastic limiting blocks 8 arranged at two sides of the containing groove 7.1, in particular, the elastic limiting block 8 can generate elastic deformation after being transversely stressed, the upper end of one side of the elastic limiting block 8 close to the magnet 5 is provided with a convex limiting claw 8.1, when the magnet 5 is arranged in the accommodating groove 7.1, the side wall of the magnet 5 can extrude the elastic limiting blocks 8 at the two sides of the accommodating groove 7.1, the elastic limiting blocks 8 are elastically deformed after being stressed, so that the gap between the two elastic limit blocks 8 is enlarged, at this time, the magnet 5 moves downwards to the accommodating groove 7.1, the external force that is used in on the elastic limiting block 8 disappears this moment, and elastic limiting block 8 resets and warp, just clamps the outward flange of cooperation at 5 up end of magnet until the spacing jack catch 8.1 of elastic limiting block 8 upper end, realizes 5 vertical spacing to magnet, prevents effectively that magnet 5 from deviating from accommodating groove 7.1. Similarly, when magnet 5 needs to be dismantled and replaced in this structure, only need exert external force on two elastic limiting blocks 8 earlier for two elastic limiting blocks 8 are out of shape towards the direction that parts each other, and straight spacing jack catch 8.1 is disengaged with magnet 5 up end, loses behind spacing effect of spacing jack catch 8.1, magnet 5 can take out from accommodating groove 7.1, realizes magnet 5's light dismantlement and changes. Furthermore, in order to facilitate the detachment of the magnet 5, the bottom of the accommodating groove 7.1 is provided with a through hole 7.3, so that when the magnet 5 is detached, a push rod can extend into the through hole 7.3 from the lower part, and the magnet 5 can be better forced to be disengaged from the accommodating groove 7.1.

As shown in the figure, on the other hand, in this embodiment, a guiding inclined plane 8.2 is further disposed on one side of the upper end of each elastic limiting block 8, which is close to the magnet 5, so that the frictional resistance between the magnet 5 and the elastic limiting block 8 during installation is reduced, and the installation difficulty is reduced.

And a plurality of reinforcing ribs 7.2 are arranged on the inner side wall of the accommodating groove 7 along the circumferential direction, and the inner side walls of the reinforcing ribs 7.2 are respectively abutted against the outer side wall of the magnet 5. Set up behind a plurality of strengthening ribs 7.2 structures on the inner wall of storage tank 7.1 in this structure both increased storage tank 7.1's overall structure intensity, reduced the area of contact between 5 lateral walls of magnet and the storage tank 7.1 again, reduced corresponding frictional force, make things convenient for dismouting magnet 5.

While the above is directed to the preferred embodiment of the present invention, it is not intended that it be limited, except as by the appended claims. The present invention is not limited to the above embodiments, and the specific structure thereof allows for changes, all the changes made within the protection scope of the independent claims of the present invention are within the protection scope of the present invention.

Claims

1. The utility model provides a two switch redundant structures of electron selector, includes casing (1), the middle part of casing (1) is rotated and is worn to be equipped with knob subassembly (2), its characterized in that: the lower end of the knob component (2) is connected with a gear rack (3), the lower end face of the shell (1) is provided with a PCB (printed circuit board) board (4), and two sides of the gear rack (3) are provided with two magnets (5) which are symmetrically distributed along the axis; PCB board (4) are located the top of magnet (5), just the lower terminal surface symmetry of PCB board (4) is equipped with two sets of hall sensor (6) with two magnet (5) one-to-ones, when knob subassembly (2) drive gear frame (3) rotation shift to the position of settlement, hall sensor (6) receive magnet (5) signal and with signal transfer to the master controller of selector to realize the gear and switch.

2. The dual switch redundancy of an electronic shifter of claim 1, wherein: two side walls at the lower end of the gear rack (3) are symmetrically provided with two mounting plates (7) along the axis, and the magnets (5) are detachably mounted on the two mounting plates (7) respectively.

3. The dual switch redundancy of an electronic shifter of claim 2, wherein: the upper end of the mounting plate (7) is provided with a containing groove (7.1) for assembling the magnet (5) and a limiting part for driving the magnet (5) to be fixed and limited in the containing groove.

4. The dual switch redundancy configuration of an electronic shifter of claim 3, wherein: spacing portion includes that at least two establish elastic limiting block (8) in storage tank (7.1) both sides, the upper end that the nearly magnet (5) one side of elastic limiting block (8) is equipped with spacing jack catch (8.1) of evagination, works as magnet (5) pack into behind storage tank (7.1), spacing jack catch (8.1) cooperation is at the outward flange of magnet (5) up end.

5. The dual switch redundancy configuration of an electronic shifter of claim 4, wherein: one side of the upper end of each elastic limiting block (8), which is close to the magnet (5), is also provided with a guide inclined plane (8.2).

6. The dual switch redundancy configuration of an electronic shifter of claim 3, wherein: be equipped with a plurality of strengthening ribs (7.2), a plurality of along circumference on the inside wall of storage tank (7.1) the inside wall of strengthening rib (7.2) respectively with the lateral wall counterbalance of magnet (5).

7. The dual switch redundancy arrangement of an electronic shifter of any one of claims 3 to 6, wherein: the bottom of the containing groove (7.1) is provided with a through hole (7.3).