CN219821252U - Motor support and slide rail assembly - Google Patents

Abstract

The utility model discloses a motor bracket and a slide rail assembly, wherein the slide rail assembly comprises a motor bracket, the left end and the right end of the motor bracket are respectively provided with a dovetail groove, an elastic buckle and a second limiting part, the elastic buckle at least partially protrudes into the dovetail grooves, so that a first limiting part is formed in the dovetail grooves, the second limiting part is positioned at one side of the first limiting part, which is far away from an inserting port of the dovetail grooves, and one side of the elastic buckle, which faces towards the outside of the dovetail grooves, is provided with a hand buckling groove, the dovetail grooves of the motor bracket are matched with dovetail blocks of a transmission assembly of the slide rail assembly, and the first limiting part and the second limiting part of the motor bracket are matched with each other to clamp the dovetail blocks of the transmission assembly. The slide rail assembly has: the weight is light, the number of parts is small, the position layout of the seat support and the like on the upper rail is not limited, the disassembly and the assembly are convenient and quick, and the coaxiality of the output shaft of the motor and the driving gear in the gear box is easy to guarantee.

Description

Motor support and slide rail assembly

Technical Field

The utility model relates to the technical field of machinery, in particular to a sliding rail assembly which can be used for adjusting the front and rear positions of a car seat, and a motor bracket which can be used for supporting a motor of the sliding rail assembly.

Background

Car seats are typically fitted with a track assembly for adjusting the fore and aft position of the car seat.

Referring to fig. 1, fig. 1 is a schematic view of a typical track assembly of a car seat. The sliding rail assembly comprises a left group of rail assemblies 01, a right group of rail assemblies 01, a motor 03, a motor bracket 04 for supporting the motor 03, and two groups of transmission assemblies 02 for respectively transmitting the driving force of the motor 03 to the left group of rail assemblies 01 and the right group of rail assemblies 01. The upper walls 011a of the upper rails 011 of the left and right rail assemblies 01 are respectively riveted with connecting pieces 05 by rivets 06. The left and right ends of the motor bracket 04 are fixedly connected with the left and right connecting pieces 05 through bolts 07 respectively. The transmission assembly 02 comprises a gear box 021, and left and right output shafts of the motor 03 are respectively and coaxially connected with driving gears in the left and right gear boxes 021.

The sliding rail assembly with the structure has the following problems: the parts are more, and the disassembly and assembly are complex; the connecting sheet limits the position layout of a bracket, a welding wire and the like connected with the seat on the upper track; the relative position of the connecting sheet and the gear box is not easy to control, and is easy to be bigger, and the bigger can lead to the problem that the coaxiality of the output shaft of the motor and the driving gear in the gear box is not high, so that abnormal sound, short service life and the like occur in the use process.

In view of this, there is a need for improved slide rail assemblies.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a motor bracket, wherein the left end and the right end of the motor bracket are respectively provided with a dovetail groove, an elastic buckle and a second limiting part, the elastic buckle at least partially protrudes into the dovetail grooves, so that a first limiting part is formed in the dovetail grooves, the second limiting part is positioned at one side, far away from an inserting port of the dovetail grooves, of the first limiting part, and a hand buckling groove is arranged at one side, facing the outside of the dovetail grooves, of the elastic buckle.

In one embodiment of the motor support, a part of the dovetail groove, which is close to the insertion opening of the dovetail groove, is a guide groove part, and a part of the dovetail groove, which is far away from the insertion opening of the dovetail groove, is a limit groove part, wherein the guide groove part is used for being in clearance fit with the dovetail block, and the limit groove part is used for being in interference fit with the dovetail block.

One embodiment of the motor support is provided with a motor bin, a first clamping part and a second clamping part are arranged in the motor bin, the first clamping part and the second clamping part are arranged at intervals in the left-right direction, and the first clamping part and the second clamping part are matched to clamp a shell of the motor.

One embodiment of the motor support, the second clamping part is far away from a side area of the motor bin opening and is an interference fit area, a side area close to the motor bin opening is a clearance fit area, the interference fit area is used for being in interference fit with a shell of the motor, and the clearance fit area is used for being in clearance fit with the shell of the motor.

In one embodiment of the motor support, a side of the first clamping portion, which is close to the bin opening of the motor bin, is inclined in a direction away from the second clamping portion, and a side of the second clamping portion, which is close to the bin opening of the motor bin, is inclined in a direction away from the first clamping portion.

One embodiment of the motor support is provided with a stop part, the stop part is positioned on one side of the first clamping part away from the second clamping part, the stop part is provided with a through hole for the output shaft of the motor to pass through, and the stop part is used for stopping the motor to move towards the bin opening of the motor bin.

In one embodiment of the motor support, the left and right ends of the motor support are provided with observation holes so that the end part of the output shaft of the motor positioned at the other side of the motor support can be observed from one side of the motor support through the observation holes

In one embodiment of the motor support, the motor support is of an integral injection molding structure.

The utility model also provides a sliding rail assembly, which comprises two groups of rail assemblies, two groups of transmission assemblies, a motor and a motor bracket, wherein the two groups of rail assemblies are arranged at intervals left and right, the two groups of transmission assemblies are respectively used for driving the two groups of rail assemblies to slide forwards and backwards, and the motor bracket is used for driving the two groups of rail assemblies to slide forwards and backwards; the transmission assembly is provided with a dovetail block; dovetail grooves at the left end and the right end of the motor bracket are respectively matched with dovetail blocks of the left transmission assembly and the right transmission assembly; the first limiting part and the second limiting part at the left end of the motor bracket are matched to clamp the dovetail block of the left transmission assembly; the first limiting part and the second limiting part at the right end of the motor support are matched to clamp the dovetail block of the right-side transmission assembly.

In one embodiment of the sliding rail assembly, the first limiting part and the second limiting part at the left end of the motor support are matched with the dovetail block of the left transmission assembly, and the first limiting part and the second limiting part at the right end of the motor support are matched with the dovetail block of the right transmission assembly, wherein one of the first limiting part and the second limiting part is in small clearance fit, and the other of the first limiting part and the second limiting part is in large clearance fit.

The slide rail assembly provided by the utility model comprises: the weight is light, the number of parts is small, the position layout of the seat support and the like on the upper rail is not limited, the disassembly and the assembly are convenient and quick, and the coaxiality of the output shaft of the motor and the driving gear in the gear box is easy to guarantee.

Drawings

Fig. 1 is a schematic view of a typical track assembly of a car seat.

The reference numerals in fig. 1 are explained as follows:

01 track component, 011 upper track, 011a upper wall, 012 lower track, 02 transmission component, 021 gear box, 03 motor, 04 motor bracket, 05 connecting piece, 06 rivet, 07 bolt;

FIG. 2 is a schematic structural view of a slide rail assembly according to the present utility model;

FIG. 3 is a block diagram of a motor bracket;

FIG. 4 is an enlarged view of a portion of one end of the motor mount;

FIG. 5 is a half cross-sectional view of a motor bracket;

FIG. 6 is an enlarged view of the gearbox of the drive assembly;

FIG. 7 is an enlarged view of the elastic snap-fit portion of the motor bracket;

FIG. 8 is a top view of one end of the motor bracket;

FIG. 9 is a block diagram of the motor bracket connected to the drive assembly;

FIGS. 10 and 11 are enlarged views of a motor compartment portion of the motor support from two different perspectives;

fig. 12 is a half cross-sectional view of a motor housing portion of the motor support.

The reference numerals in fig. 2-12 are illustrated as follows:

10 track assembly, 101 upper track, 102 lower track,

20 transmission components, 203 gear boxes, 203a dovetail blocks, M convex edges and N concave parts;

40 motors, 401 shells, 402 output shafts;

50 motor support, 501 dovetail, 501a spacing convex rib, 502 elasticity buckle, 502a first spacing portion, 502b hand catching groove, 503 second spacing portion, 504 first clamping part, 505 second clamping part, 505a spacing arch, 506 stop portion, 507 observation hole, 508 major axis supporting part.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the technical scheme of the present utility model will be further described in detail with reference to the accompanying drawings and the detailed description.

As shown in fig. 2, the slide rail assembly includes two sets of rail assemblies 10 and two sets of transmission assemblies 20, as well as a motor 40 and a motor bracket 50.

The two sets of rail assemblies 10 are arranged at intervals left and right, each set of rail assemblies 10 comprises an upper rail 101 and a lower rail 102, and the upper rail 101 and the lower rail 103 are arranged up and down.

The two sets of transmission assemblies 20 are respectively used for driving the upper rails 101 of the two sets of rail assemblies 10 to slide back and forth relative to the lower rails 102.

The motor bracket 50 spans between the two sets of track assemblies 10, the left end of the motor bracket 50 is connected to the left drive assembly 20, and the right end of the motor bracket 50 is connected to the right drive assembly 20. Specifically, when the transmission assembly 20 includes the gear box 203, the left and right ends of the motor bracket 50 may be respectively connected to the gear boxes 203 on the left and right sides.

The motor 40 is supported by a motor bracket 50. The left and right ends of the housing 401 of the motor 40 extend out of one output shaft 402, the two output shafts 402 can be long and short, the left output shaft 402 is connected with the left transmission assembly 20, and the right output shaft 402 is connected with the right transmission assembly 20. Specifically, when the transmission assembly 20 includes the gear box 203, one way of connecting the output shaft 402 of the motor 40 and the transmission assembly 20 is: an output shaft 402 of the motor 40 extends into the gear box 203 and is coaxially connected with a drive gear in the gear box 203.

After the motor 40 is started, the power of the motor 40 is sequentially transmitted to the left and right rail assemblies 10 through the left and right output shafts 402 and the left and right transmission assemblies 20, so as to drive the upper rails 101 of the left and right rail assemblies 10 to slide back and forth relative to the lower rails 102.

As shown in fig. 3, the motor bracket 50 may be an integrally injection-molded structure, and the plastic material is easy to mold, and can provide energy buffering, absorb vibration of the motor 40, and promote comfort of a seat connected to the slide rail assembly.

As shown in fig. 3, the left and right ends of the motor bracket 50 are provided with a dovetail groove 501 and an elastic buckle 502. As shown in fig. 4, the elastic clip 502 protrudes at least partially into the dovetail groove 501, thereby forming a first stopper 502a in the dovetail groove 501. As shown in fig. 5, the left and right ends of the motor bracket 50 are further provided with second limiting portions 503, the second limiting portions 503 are located at one side of the first limiting portion 502a away from the insertion opening of the dovetail groove 501, specifically, the second limiting portion 503 at the left end is located at the right side of the first limiting portion 502a at the left end, and the second limiting portion 503 at the right end is located at the left side of the first limiting portion 502a at the right end.

The left and right sets of transmission assemblies 20 are provided with dovetail blocks 203a, dovetail grooves 501 at the left and right ends of the motor bracket 50 are respectively matched with the dovetail blocks 203a of the left and right sets of transmission assemblies 20, and first limit parts 502a of elastic buckles 502 at the left and right ends of the motor bracket 50 are respectively matched with second limit parts 503 at the left and right ends to clamp the dovetail blocks 203a of the left and right sets of transmission assemblies 20.

Specifically, as shown in FIG. 6, when the transmission assembly 20 includes a gearbox 203, a dovetail block 203a may be provided in the housing of the gearbox 203. More specifically, dovetail block 203a may be provided with a rib M and a recess N.

During assembly, the dovetail block 203a is inserted into the dovetail groove 501 from the insertion opening of the dovetail groove 501 along the length direction of the motor bracket 50, and during the insertion process, the dovetail block 203a pushes up the first limiting portion 502a of the elastic buckle 502 to the outside of the dovetail groove 501, so that the elastic buckle 502 is elastically deformed, after the elastic buckle 502 is inserted in place, the first limiting portion 502a of the elastic buckle 502 is automatically reset, and the reset first limiting portion 502a and the second limiting portion 503 cooperate to clamp the dovetail block 203a. Specifically, the first reset limiting portion 502a may be snapped into the recess N of the dovetail block 203a and clamped against one side of the rib M of the dovetail block 203a.

As shown in fig. 7, the elastic clip 502 is provided with a hand clip groove 502b on the side facing the outside of the dovetail groove 501. During disassembly, a handle can be inserted into the hand buckling groove 502b, and then a pulling force is applied to the elastic buckle 502, so that the first limiting part 502a of the elastic buckle 502 is pulled outwards of the dovetail groove 501, and the first limiting part 502a is not clamped against the dovetail block 203a, so that the dovetail block 203a can be conveniently pulled out from the insertion port of the dovetail groove 501, and the motor bracket 50 can be quickly and conveniently disassembled.

As can be seen from the above description, compared with the solution in fig. 1 of the background art, the sliding rail assembly provided by the present utility model omits the components such as the connecting piece, the bolt, the rivet, etc., reduces the number of parts, lightens the weight of the sliding rail assembly, avoids the limitation of the connecting piece to the layout of the seat support (the seat support is connected to the upper wall of the upper rail 101) etc. at the position of the upper rail 101, and is convenient and quick to disassemble and assemble, and in addition, the coaxiality of the output shaft 402 of the motor 40 and the driving gear in the gear box 203 can be better controlled when the motor support 50 is directly connected with the gear box 203 of the transmission assembly 20.

It will be appreciated that when the motor bracket 50 is directly connected to the gear box 203 of the transmission assembly 20, the relative positions of the motor bracket 50 and the gear box 203 are relatively easy to control, and thus the relative positions of the motor 40 and the gear box 203 supported by the motor bracket 50 are relatively easy to control, and thus the coaxiality of the motor 40 and the driving gear in the gear box 203 is relatively easy to control.

Specifically, the first limiting portion 502a and the second limiting portion 503 at the left end of the motor bracket 50 are matched with the dovetail block 203a of the left transmission assembly 20, and the first limiting portion 502a and the second limiting portion 503 at the right end of the motor bracket 50 are matched with the dovetail block 203a of the right transmission assembly 20, wherein one is in small clearance fit, and the other is in large clearance fit. In this way, the shift-out dimension error of the left and right rail assemblies 10 can be accommodated. Specifically, the fit clearance for small clearance fit may be about 0.5mm, and the fit clearance for large clearance fit may be about 2 mm.

Specifically, the portion of the dovetail groove 501 close to the insertion port may be provided as a guide groove portion, and the portion distant from the insertion port may be provided as a limit groove portion. Specifically, the left side portion of the dovetail groove 501 at the left end is a guide groove portion, the right side portion is a limit groove portion, and the right side portion of the dovetail groove 501 at the right end is a guide groove portion, and the left side portion is a limit groove portion. The guide slot portion is for clearance fit with dovetail block 203a. The limit groove part is used for being in interference fit with the dovetail block 203a. The guiding groove part and the limiting groove part are arranged, so that the dovetail groove 501 and the dovetail block 203a can be assembled more easily, and the assembly efficiency of the sliding rail assembly can be further improved.

Specifically, as shown in fig. 4, a limiting rib 501a protruding into the groove may be provided on the groove wall of the limiting groove, the limiting rib 501a is spaced from one end of the insertion opening of the dovetail groove 501, and interference fit between the limiting groove and the dovetail block 203a is achieved by the limiting rib 501 a.

As shown in fig. 8, the left and right ends of the motor bracket 50 may be provided with viewing holes 507 such that when the motor bracket 50 is coupled to the gear case 203, as shown in fig. 9, the end of the output shaft 402 of the motor 40 located at the other side of the motor bracket 50 may be viewed from one side of the motor bracket 50 through the viewing holes 507, so that the end of the output shaft 402 may be rapidly inserted into the gear case 203. Thus, the assembly efficiency of the slide rail assembly can be further improved.

As shown in fig. 10, 11 and 12, the motor bracket 50 is provided with a motor housing for accommodating a housing 401 of the motor 40 and output shafts 402 at both left and right ends. The motor compartment is provided with a first clamping portion 504 and a second clamping portion 505, the first clamping portion 504 and the second clamping portion 505 are arranged at intervals in the left-right direction, and the first clamping portion 504 and the second clamping portion 505 are matched to clamp the shell of the motor 40. By the design, the motor bracket 50 can fix the motor 40 by means of the self structure without additionally arranging a connecting piece to connect the motor 40 and the motor bracket 50.

As shown in fig. 9 and 10, the first clamping portion 504 and the second clamping portion 505 may be provided with U-shaped grooves in which both left and right ends of the housing 401 of the motor 40 are supported. In addition, a plurality of long shaft supporting parts 508 can be arranged in the motor bin, the long shaft supporting parts 508 are also provided with U-shaped grooves, and the long output shaft 402 of the motor 40 is supported in the U-shaped grooves of the long shaft supporting parts 508.

Specifically, a side area of the second clamping portion 505 away from the motor bin port may be set as an interference fit area, and a side area of the second clamping portion close to the motor bin port may be set as a clearance fit area, where the interference fit area is in interference fit with the housing 401 of the motor 40, and the clearance fit area is in clearance fit with the housing 401 of the motor 40. The interference fit region of the second clamping portion 505 engages the first clamping portion 504 to clamp the housing 401 of the motor 40. Specifically, as shown in fig. 11, the interference fit region may be formed by providing a limit protrusion 505a protruding toward the first clamping portion 504 in a region of the side of the second clamping portion 505 away from the motor compartment opening, and using the limit protrusion 505 a. The second clamping portion 505 is provided with the above interference fit region and the clearance fit region, so that the motor 40 and the motor bracket 50 can be assembled more easily, and the assembly efficiency of the sliding rail assembly can be further improved.

As shown in fig. 10 and 12, a side of the first clamping portion 504 near the mouth of the motor compartment (a position indicated in fig. 10 and 12) may be inclined in a direction away from the second clamping portion 505, and as shown in fig. 11 and 12, a side of the second clamping portion 505 near the mouth of the motor compartment (a position indicated in fig. 11 and 12) may be inclined in a direction away from the first clamping portion 504. Thus, the motor 40 and the motor bracket 50 can be assembled more easily, and the assembly efficiency of the slide rail assembly can be further improved. In the figure, the first clamping portion 504 is located on the short axis output side of the housing 401 of the motor 40, the second clamping portion 505 is located on the long axis output side of the housing 401 of the motor 40, and the inclination angle of the side of the first clamping portion 504 close to the bin opening of the motor bin is smaller than the inclination angle of the side of the second clamping portion 505 close to the bin opening of the motor bin.

As shown in fig. 10, 11 and 12, a stop 506 may also be disposed in the motor compartment, and the stop 506 is provided with a via through which the output shaft 402 of the motor 40 passes. Specifically, the stop 506 may be disposed on the short axis output side of the housing 401 of the motor 40, and the short output shaft 402 of the motor 40 passes through a via hole of the stop 506. The stopper 506 can stop the motor 40 from moving toward the mouth of the motor compartment, so that the connection reliability of the motor 40 and the motor bracket 50 can be improved.

It should be noted that in the foregoing description, the directions of front, rear, left, right, up and down are merely for those skilled in the art to better understand the relative positional relationship of the components of the present utility model, and do not represent that the present utility model can be used only in such directions.

In addition, it should be noted that the motor bracket 50 provided by the present utility model is not limited to be applied to the slide rail assembly, and can be applied to other devices with motor support requirements. The motor bracket 50 provided by the utility model is not limited to being connected with the dovetail block 203a of the transmission assembly 20, but can be connected with the dovetail blocks on other matching parts. The sliding rail assembly provided by the utility model is not limited to be applied to a seat, and can be applied to other devices with sliding requirements.

The foregoing has outlined rather broadly the principles and embodiments of the present utility model in order that the detailed description of the utility model may be better understood, and in order that the present utility model may be better understood. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (10)

1. The motor support is characterized in that a dovetail groove (501), an elastic buckle (502) and a second limiting part (503) are arranged at the left end and the right end of the motor support (50), the elastic buckle (502) at least partially protrudes into the dovetail groove (501), a first limiting part (502 a) is formed in the dovetail groove (501), the second limiting part (503) is located at one side, away from an inserting port of the dovetail groove (501), of the first limiting part (502 a), and a hand buckling groove (502 b) is formed in one side, facing the outside of the dovetail groove (501), of the elastic buckle (502).

2. The motor bracket according to claim 1, characterized in that a portion of the dovetail groove (501) close to the insertion opening of the dovetail groove (501) is a guide groove portion, a portion remote from the insertion opening of the dovetail groove (501) is a limit groove portion, the guide groove portion is used for clearance fit with the dovetail block (203 a), and the limit groove portion is used for interference fit with the dovetail block (203 a).

3. The motor bracket according to claim 1, wherein the motor bracket (50) is provided with a motor bin, a first clamping part (504) and a second clamping part (505) are arranged in the motor bin, the first clamping part (504) and the second clamping part (505) are arranged at intervals in the left-right direction, and the first clamping part (504) and the second clamping part (505) are matched to clamp a shell (401) of the motor (40).

4. A motor bracket according to claim 3, characterized in that the side area of the second clamping part (505) remote from the motor compartment opening is an interference fit area, the side area close to the motor compartment opening is a clearance fit area, the interference fit area is used for interference fit with the housing (401) of the motor (40), and the clearance fit area is used for clearance fit with the housing (401) of the motor (40).

5. The motor bracket according to claim 4, characterized in that a side of the first clamping portion (504) close to the mouth of the motor compartment is inclined in a direction away from the second clamping portion (505), and a side of the second clamping portion (505) close to the mouth of the motor compartment is inclined in a direction away from the first clamping portion (504).

6. The motor bracket according to claim 5, characterized in that the motor bracket (50) is provided with a stop portion (506), the stop portion (506) is located at one side of the first clamping portion (504) away from the second clamping portion (505), the stop portion (506) is provided with a through hole for the output shaft (402) of the motor (40) to pass through, and the stop portion (506) is used for stopping the motor (40) from moving towards the bin opening of the motor bin.

7. The motor bracket according to any one of claims 1 to 6, characterized in that both the left and right ends of the motor bracket (50) are provided with observation holes (507) so that an end portion of an output shaft (402) of the motor (40) located on the other side of the motor bracket (50) can be observed from one side of the motor bracket (50) through the observation holes (507).

8. The motor bracket according to claim 7, characterized in that the motor bracket (50) is of an integrally injection-molded construction.

9. The sliding rail assembly is characterized by comprising two groups of rail assemblies (10) which are arranged at intervals left and right, two groups of transmission assemblies (20) which are respectively used for driving the two groups of rail assemblies (10) to slide back and forth, a motor (40) and a motor bracket (50) according to any one of claims 1-8; the transmission assembly (20) is provided with a dovetail block (203 a); dovetail grooves (501) at the left end and the right end of the motor bracket (50) are respectively matched with dovetail blocks (203 a) of the left transmission assembly and the right transmission assembly (20); a first limit part (502 a) and a second limit part (503) at the left end of the motor bracket (50) are matched to clamp a dovetail block (203 a) of the left transmission assembly (20); a first limiting part (502 a) and a second limiting part (503) at the right end of the motor bracket (50) are matched to clamp a dovetail block (203 a) of the right transmission assembly (20).

10. The slide rail assembly of claim 9, wherein the first and second limiting portions (502 a, 503) of the left end of the motor bracket (50) are engaged with the dovetail block (203 a) of the left side transmission assembly (20), and the first and second limiting portions (502 a, 503) of the right end of the motor bracket (50) are engaged with the dovetail block (203 a) of the right side transmission assembly (20), one of which is a small clearance fit, and the other of which is a large clearance fit.