Seat motor end cover

Abstract

The utility model relates to a seat motor end cover, which comprises an end cover body, a bearing is arranged in the center of the end cover body, a PCB (printed circuit board), an inductor and a carbon brush are arranged on the end cover body around the bearing, the PCB is horizontally arranged, a ground lug, a plug terminal and a pin are welded on the PCB, the ground lug is clamped on the end cover body, and the plug terminal is connected with the pin. The plugging terminal and the tail end of the pin are positioned at the interface of the end cover body, and the plugging terminal is plugged with the inductor. The utility model has the advantages that the PCB is horizontally arranged, the installation is convenient and fast, and enough space is provided for arranging electronic elements on the PCB; the PCB and the inductor are mechanically connected and conducted, welding is not needed, pseudo soldering is avoided, and the technological process can be reduced; the grounding piece is clamped on the end cover body, and the grounding reliability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to chair motor technical field especially relates to a chair motor end cover. BACKGROUND

[0002] The EMC and hall circuit module of the conventional chair adjusting motor adopt vertical and split mounting mode, or use the EMC filter electronic parts of line pin type, and the following defects exist:

[0003] I. Complex structure needs special connector and is not suitable for part of the car factory application environment: vertical installation leads to limited PCBA available space, needs two plates to be stacked, occupies space and needs to cooperate with special connector, and part of the application environment demand cannot be realized.

[0004] II. Complex process, low production efficiency: the use of EMC filter electronic parts of line pin type leads to complex curved process, high labor cost and low production efficiency, and the reliability of the welding point of multiple line pins is poor. SUMMARY

[0005] The utility model mainly solves the above -mentioned problem, and provides a kind of chair motor end cover of PCB board horizontal installation, and assembly is convenient and does not need to weld.

[0006] The technical scheme that the utility model solves its technical problem is a kind of chair motor end cover, including end cover body, the central bearing of end cover body is equipped with, end cover body is provided with PCB board, inductor and carbon brush around bearing, the PCB board is horizontally arranged, and ground sheet, plug-in terminal and pin are welded on PCB board, the ground sheet is clamped on end cover body, the plug-in terminal and pin end are located at the interface of end cover body, and the plug-in terminal is inserted with inductor.

[0007] As one preferred scheme of the above scheme, the end cover body includes the bearing groove in the center, and the annular mounting portion is provided between the bearing groove and the side wall of the end cover body, the annular mounting portion is provided with a PCB board support platform, the first plug-in terminal slot, the first inductor slot, the protector slot, the first carbon brush slot, the first torsion spring slot, the second torsion spring slot, the second carbon brush slot, the second inductor slot and the second plug-in terminal slot are sequentially arranged between the two sides of the PCB board support platform, and the interface is located at the back of the PCB board support platform.

[0008] As one preferred scheme of the above scheme, the PCB board support platform includes four support columns, the edge of the support column is provided with a vertical plate, and the upper end of the vertical plate is provided with a buckle.

[0009] As a preferred scheme of the above scheme, the grounding sheet comprises a first insertion sheet, a first connecting sheet, a first clamping leg and a second clamping leg, the first insertion sheet is inserted with the PCB board at the upper end, the first insertion sheet is connected with the first connecting sheet at the lower end, the first clamping leg is vertically downwardly extended at the two ends of the first connecting sheet, the first clamping leg is clamped in the grounding sheet clamping groove of the end cover body, and the second clamping leg is vertically downwardly extended at the second side of the first connecting sheet, and the second clamping leg abuts against the outer wall of the end cover body.

[0010] As a preferred scheme of the above scheme, the insertion terminal comprises a first insertion leg, a second insertion sheet and an external connecting leg, the first insertion leg is vertically upwardly extended and is inserted with the PCB board, the second insertion sheet is vertically downwardly extended below the first insertion leg, the lower end of the second insertion sheet is provided with an inductor pin clamping groove, the external connecting leg is vertically downwardly extended at the side of the second insertion sheet, and the terminal end of the external connecting leg penetrates through the end cover body and extends into the interface.

[0011] As a preferred scheme of the above scheme, the first pin and the second pin are arranged at the upper end and the lower end of the inductor respectively, and the second pin is clamped in the inductor pin clamping groove of the insertion terminal.

[0012] As a preferred scheme of the above scheme, the first pin of the inductor is electrically connected with the carbon brush or the protector.

[0013] As a preferred scheme of the above scheme, the torsional spring is arranged in the first torsional spring groove and the second torsional spring groove, and the torsional arm of the torsional spring abuts against the carbon brush.

[0014] As a preferred scheme of the above scheme, the EMC circuit and the Hall circuit are integrated on the PCB board.

[0015] As a preferred scheme of the above scheme, the PCB board is provided with an insertion interface for inserting the Hall element.

[0016] The PCB board is horizontally arranged, convenient to install, and has sufficient space for arranging electronic elements; the mechanical connection is adopted between the PCB board and the inductor, so that welding is not needed, false welding is avoided, and the process flow is reduced; the grounding sheet is clamped on the end cover body, and the grounding reliability is high. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the back of the seat motor end cover.

[0018] Figure 2 It is a structural schematic view of the front of the seat motor end cover.

[0019] Figure 3 It is a structural schematic view of the end cover body.

[0020] Figure 4 This is a structural diagram of the seat motor end cover without a PCB board.

[0021] Figure 5 This is a schematic diagram of the connection structure of electronic components.

[0022] Figure 6 This is a schematic diagram of the grounding plate.

[0023] Figure 7 This is a schematic diagram of another structure for a grounding plate.

[0024] Figure 8 This is a schematic diagram of the plug-in terminal.

[0025] 1-End cap body 2-Interface 3-PCB board 4-Inductor 5-Protector 6-Carbon brush 7-Torsion spring 8-Grounding piece 9-Pin 10-Plug-in terminal 11-Support post 12-First plug-in terminal slot 13-First inductor slot 14-Protector slot 15-First carbon brush slot 16-First torsion spring slot 17-Second torsion spring slot 18-Second carbon brush slot 19-Second inductor slot 20-Grounding piece snap-fit ​​slot 801-First plug-in piece 802-First connecting piece 803-First snap-fit ​​pin 804-Second snap-fit ​​pin 805-Protrusion 1001-First plug-in pin 1002-Second plug-in piece 1003-External connection pin 1004-Inductor pin snap-fit ​​slot. Detailed Implementation

[0026] The technical solution of this utility model will be further described below through embodiments and in conjunction with the accompanying drawings.

[0027] Example:

[0028] This embodiment provides a seat motor end cover, such as... Figures 1 to 5 As shown, it includes an end cap body 1, a PCB board 3, a pair of inductors 4, a pair of carbon brushes 6, a pair of torsion springs 7, and a protector 5.

[0029] The end cover body 1 comprises a bearing groove in the center, an annular mounting portion between the bearing groove and the end cover body side wall, a PCB board support platform in the annular mounting portion, a first plug-in terminal groove 12, a first inductor groove 13, a protector groove 14, a first carbon brush groove 15, a first torsional spring groove 16, a second torsional spring groove 17, a second carbon brush groove 18, a second inductor groove 19 and a second plug-in terminal groove arranged in sequence between the two sides of the PCB board support platform, and an interface 2 on the back of the PCB board support platform. The bearing groove is used for arranging a bearing, and the PCB board 3, the inductor 4 and the carbon brush 6 are arranged around the bearing groove, wherein the PCB board 3 is horizontally arranged, the PCB board 3 is welded with a grounding sheet 8, a plug-in terminal 10 and a pin 9, the grounding sheet 8 is clamped on the end cover body 1, the plug-in terminal 10 and the pin end are located at the interface 2 of the end cover body, and the plug-in terminal 10 is plugged with the inductor 4. In the embodiment, the PCB board is electrically connected with the inductor through the plug-in terminal 10, the inductor is electrically connected with the carbon brush, the PCB board is integrated with an EMC circuit and a Hall circuit, the PCB board is provided with a plug-in interface for plugging a Hall element, the installation of the Hall element is facilitated, the PCB board has universality, and can be switched between a seat memory version and a non-memory version according to requirements.

[0030] The PCB board support platform comprises four support columns 11, the edges of the support columns 11 are provided with vertical plates, the upper ends of the vertical plates are provided with buckles, and the buckles can be used for fixing the PCB board on the PCB board support platform.

[0031] As shown in the figure, Figure 6 The grounding sheet 8 comprises a first plug-in sheet 801, a first connecting sheet 802, a first clamping leg 803 and a second clamping leg 804 connected in sequence, the upper end of the first plug-in sheet 801 is plugged with the PCB board 3, the lower end of the first plug-in sheet 801 is connected with the first side of the first connecting sheet 802, the first clamping leg 803 is vertically downwardly extended at the two ends of the first side of the first connecting sheet 802 and is clamped in a grounding sheet clamping groove 20 of the end cover body, the second clamping leg 804 is vertically downwardly extended at the two ends of the second side of the first connecting sheet 802 and abuts against the outer wall of the end cover body 1, and the second clamping leg itself has elasticity and clamps the side wall of the end cover body 1 through the elasticity. In the embodiment, the number of the first clamping leg 803 and the second clamping leg 804 is at least one, which can be increased or decreased according to actual requirements, as shown in the figure, Figure 7 The number of the second clamping leg 804 is one and is centrally arranged, and a convex point 805 can also be arranged on the front surface or the back surface of the first clamping leg 803 or the second clamping leg 804 to improve the firmness of the connection between the grounding sheet 8 and the end cover body 1.

[0032] As shown in the figure, Figure 7As shown, the plug-in terminal includes the first plug-in leg 1001, the second plug-in leg 1002 and the external connecting leg 1003 connected together, the first plug-in leg 1001 extends vertically upward and is plugged with the PCB 3, the second plug-in leg 1002 is located below the first plug-in leg 1001 and extends vertically downward, the lower end of the second plug-in leg 1002 is provided with the inductor pin clamping groove 1004, the external connecting leg 1003 is located at the side of the second plug-in leg 1002 and extends vertically downward, and the end of the external connecting leg 1003 penetrates through the end cover body 1 and extends into the interface 2.

[0033] The first pin and the second pin are respectively arranged at the upper end and the lower end of the inductor 4, the inductor body is located in the first inductor groove and the second inductor groove, the second pin clamping groove extends into the first plug-in terminal groove and the second plug-in terminal groove and is clamped in the inductor pin clamping groove of the plug-in terminal 10, the first pin of the inductor is electrically connected with the carbon brush or the protector, the torsional spring is arranged in the first torsional spring groove and the second torsional spring groove, the torsional arm of the torsional spring abuts against the carbon brush, and the carbon brush is fixed.

[0034] In the embodiment, the PCB 3 is horizontally arranged, convenient to install, and there is enough space to arrange electronic components on the PCB. The mechanical connection is adopted between the PCB and the inductor to conduct, without welding, so that the virtual welding is avoided and the process flow is reduced. The grounding sheet is clamped on the end cover body made of metal, and the grounding reliability is high.

[0035] The specific embodiments described herein merely illustrate the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without departing from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. A seat motor end cover, characterized in that: The device includes an end cap body, with a bearing at the center of the end cap body. A PCB board, an inductor, and a carbon brush are arranged around the bearing on the end cap body. The PCB board is horizontally arranged and has a grounding plate, a plug-in terminal, and a pin inserted into it. The grounding plate is snapped onto the end cap body. The plug-in terminal and the pin end are located at the interface of the end cap body. The plug-in terminal is plugged into the inductor.

2. The seat motor end cover according to claim 1, characterized in that: The end cap body includes a bearing groove located in the center, and an annular mounting part is provided between the bearing groove and the side wall of the end cap body. A PCB board support platform is provided in the annular mounting part. A first plug-in terminal groove, a first inductor groove, a protector groove, a first carbon brush groove, a first torsion spring groove, a second torsion spring groove, a second carbon brush groove, a second inductor groove, and a second plug-in terminal groove are arranged sequentially between the two sides of the PCB board support platform. The interface is located on the back of the PCB board support platform.

3. The seat motor end cover according to claim 2, characterized in that: The PCB board support platform includes four support columns, each with a vertical plate at its edge and a buckle at its upper end.

4. The seat motor end cover according to claim 1, characterized in that: The grounding plate includes a first plug-in piece, a first connecting piece, a first snap-fit ​​pin, and a second snap-fit ​​pin connected together. The upper end of the first plug-in piece is plugged into the PCB board, and the lower end of the first plug-in piece is connected to the first side of the first connecting piece. The first snap-fit ​​pin is located on the first side of the first connecting piece and extends vertically downward. The first snap-fit ​​pin is snapped into the grounding plate snap-fit ​​groove of the end cover body. The second snap-fit ​​pin is located on the second side of the first connecting piece and extends vertically downward. The second snap-fit ​​pin abuts against the outer wall of the end cover body.

5. The seat motor end cover according to claim 1, characterized in that: The connector includes a first connector pin, a second connector tab, and an external connector pin. The first connector pin extends vertically upward and is inserted into the PCB board. The second connector tab is located below the first connector pin and extends vertically downward. The lower end of the second connector tab is provided with an inductor pin slot. The external connector pin is located on the side of the second connector tab and extends vertically downward. The end of the external connector pin passes through the end cover body and extends into the interface.

6. The seat motor end cover according to claim 5, characterized in that: The inductor has a first pin and a second pin at its upper and lower ends, respectively, and the second pin is snapped into the inductor pin slot of the plug-in terminal.

7. The seat motor end cover according to claim 6, characterized in that: The first pin of the inductor is electrically connected to a carbon brush or a protector.

8. The seat motor end cover according to claim 2, characterized in that: The first and second torsion spring slots are provided with torsion springs, and the torsion arm of the torsion spring abuts against the carbon brush.

9. The seat motor end cover according to claim 1, characterized in that: The PCB board integrates EMC circuitry and Hall effect circuitry.

10. The seat motor end cover according to claim 9, characterized in that: The PCB board is equipped with a connector for inserting Hall elements.

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