A seat middle armrest with controllable heating function

Abstract

The utility model discloses a middle armrest of a seat with a controllable heating function, including an armrest frame, a micro switch is provided on one side of the armrest frame close to the rotating shaft, the micro switch touches or separates with a cam when the armrest frame rotates, the middle part of the cam passes through one end of a connecting shaft and is fixed by a locking plate, the other end of the connecting shaft passes through the side walls of the armrest frame and the backrest frame in sequence and is covered with a gasket and a first card, and the connecting shaft is fixed by bolts, the wiring harness of the micro switch is connected in series with the wiring harness of the upper cover assembly, and the upper cover assembly is arranged on the armrest frame. The utility model has a reasonable design and a compact structure, and expands the heating automatic control function on the basis of the armrest heating function, and can turn off the heating function of the middle armrest separately by turning off the middle armrest.

Description

Technical Field

[0001] The utility model belongs to the field of automobile seats, and in particular relates to a middle armrest of a seat with a controllable heating function. Background Art

[0002] With the development of the automobile industry, the rear seats of traditional high-end cars generally have a seat heating function, that is, seat cushion heating and middle armrest heating. A first heating pad is provided in the seat cushion, an upper cover assembly is provided in the middle armrest, and a second heating pad is embedded in the upper cover assembly. The wiring harnesses on the first heating pad and the second heating pad are connected to the automobile assembly wiring harness. When the heating function is used, the electrical components of the interior are used to control whether to give signals to the heating pads in the seat cushion and the middle armrest, so as to realize the autonomous control of the heating functions of the seat cushion and the middle armrest. Although this structure meets the riding comfort of the rear passengers in winter, it still has the following problems:

[0003] 1. Since the seat cushion heating and the middle armrest heating are the same switch, when the armrest heating is turned off, the seat cushion heating will also be turned off.

[0004] 2. When the passenger forgets to turn off the seat heating function and rotates the armrest into the seat back, the heating pad will continue to heat, causing energy waste. In addition, the middle armrest continues to heat inside the seat back, which may pose a safety hazard. Utility Model Content

[0005] The purpose of the utility model is to solve the above-mentioned problem and to provide a middle armrest of a seat with a controllable heating function. The middle armrest is at the bottom of the upper cover assembly, and a cam and a micro switch are provided at one end of the rotating shaft of the armrest frame. The automobile assembly wiring harness is connected in series with the micro switch wiring harness and the upper cover assembly wiring harness. The rotation of the armrest frame drives whether the micro switch and the cam touch each other, thereby connecting or disconnecting the circuit of the heating pad in the upper cover assembly, so that the heating function of the armrest can be turned off separately by closing the middle armrest.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a middle armrest of a seat with a controllable heating function, including an armrest frame, a micro switch, a cam, a connecting shaft, a locking plate, a washer, a first card, bolts and an upper cover assembly, wherein a micro switch is provided on the side of the armrest frame close to the rotating shaft, and the micro switch touches or separates from the cam when the armrest frame rotates, the middle part of the cam passes through one end of the connecting shaft and is fixed by a locking plate, the other end of the connecting shaft passes through the side walls of the armrest frame and the backrest frame in turn, and is covered with a washer and a first card, and the connecting shaft is fixed by bolts, the wiring harness of the micro switch is connected in series with the wiring harness of the upper cover assembly, and the upper cover assembly is arranged on the armrest frame.

[0007] Advantages and beneficial effects of the utility model

[0008] 1. The utility model is improved on the basis of the existing middle armrest. A cam and a micro switch are provided at one end of the rotating shaft of the armrest frame at the bottom of the upper cover assembly. The automobile assembly wiring harness is connected in series with the micro switch wiring harness and the upper cover assembly wiring harness. The rotation of the armrest frame drives whether the micro switch and the cam touch each other. When the middle armrest is closed, that is, the armrest frame rotates to the seat back, the cam touches the micro switch, disconnects the circuit of the heating pad in the upper cover assembly, and automatically turns off the heating function of the armrest heating pad. The heating function of the seat cushion heating and the middle armrest heating can be controlled by the same switch, and the heating function of the middle armrest can be turned off separately by closing the middle armrest.

[0009] 2. The utility model automatically disconnects the heating function of the middle armrest when the armrest is rotated to the seat back, thereby solving the problems of energy waste and potential safety hazards. The utility model has a reasonable design and a compact structure, providing rear passengers with a more advanced riding experience in winter. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without creative work.

[0011] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the utility model;

[0012] Figure 2 This is a schematic structural diagram of the utility model embodiment 1 without the upper cover assembly;

[0013] Figure 3 This utility model Figure 2 The enlarged view of point A in the middle;

[0014] Figure 4 It is an exploded view of the cam and the connecting shaft of Example 1 of the utility model;

[0015] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of the utility model without the upper cover assembly;

[0016] Figure 6 This utility model Figure 5 The enlarged view of point B in the middle;

[0017] Figure 7 It is an exploded view of the overall structure of Embodiment 2 of the present utility model;

[0018] Figure 8This is a schematic diagram of the connection between the cam and the connecting shaft in Embodiment 2 of the utility model;

[0019] Fig. 9 It is an exploded view of the cam and the connecting shaft of Example 2 of the utility model.

[0020] Figure numerals: armrest frame 1, card point 101, micro switch 2, cam 3, connecting end 31, touching end 32, spline hole 33, ridge 34, anti-error platform 35, connecting shaft 4, spline 41, fixing groove 42, second card 43, anti-error point 44, locking plate 5, backrest frame 6, washer 7, first card 8, bolt 9, upper cover assembly 10 and armrest limiting structure 11. DETAILED DESCRIPTION

[0021] The specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings. It should be noted that, in the description of the present invention, terms such as "upper", "lower", "left", "right", "front", "back", "inside" and "outside" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure referred to must have a specific direction. Therefore, it cannot be understood as a limitation on the present invention.

[0022] Embodiment 1

[0023] like Figure 1-Figure 3As shown, a middle armrest of a seat with a controllable heating function comprises an armrest frame 1, the rear portion of the armrest frame 1 is rotatably connected to the bottom of a backrest frame 6 through rotating shafts on both sides, a micro switch 2 is clamped in the inner cavity of the armrest frame 1 close to the rotating shaft, the micro switch 2 is an existing structure, the micro switch used in this embodiment is a G3 micro switch, model G303-130G38B14-FA300U, the wiring harness of the micro switch 2 is connected in series between the wiring harness of the internal assembly of the armrest and the wiring harness of the upper cover assembly 10, the upper cover assembly 10 is an existing structure, the application date is July 6, 2023, the patent number is 2023217619009, the rear end of the upper cover assembly 10 is rotatably connected to the storage box in the armrest frame 1, the upper cover assembly 10 and the rotating shaft of the storage box are connected. The dynamic connection is also an existing structure, with an application date of July 5, 2023 and a patent number of 2023217479535. The micro switch 2 contacts or separates from the cam 3 as the armrest frame 1 rotates. The cam 3 is a plastic part made of PUM material. The PUM plastic part is lighter and cheaper, and has a self-lubricating function, which can prevent damage caused by long-term cooperation with the micro switch 2. The middle part of the cam 3 passes through one end of the connecting shaft 4 and is fixed to the connecting shaft 4 through a locking plate 5. The other end of the connecting shaft 4 passes through the side walls of the armrest frame 1 and the backrest frame 6 in turn, and is covered with a gasket 7 and a first card 8, and the connecting shaft 4 is fixed by a bolt 9. The gasket 7 can prevent wear of the skin wrapped around the outside of the armrest, and the first card 8 is used to fix the skin in the Y direction.

[0024] like Figure 4 As shown, a plurality of splines 41 are evenly distributed on the circumference of the connecting shaft 4 , a fixing groove 42 is provided at one end of the connecting shaft 4 close to the cam 3 , and the locking piece 5 is arranged in the fixing groove 42 , so that the cam 3 is fixed on the connecting shaft 4 .

[0025] like Figure 3 and Figure 4 As shown, the cam 3 is a stepped cylindrical shape, with a connecting end 31 at the left end and a contact end 32 at the right end. A spline hole 33 is laterally provided in the middle part of the cam 3 for cooperating with a plurality of splines 41 on the connecting shaft 4. The bottom of the contact end 32 has a convex ridge 34 for contacting with the micro switch 2. In order to more accurately and conveniently install the cam 3 on the connecting shaft 4 so that the cam 3 contacts the micro switch 2 to disconnect the circuit after the armrest is closed, the present embodiment may also be provided with an anti-error platform 35 on the connecting end 31, and at the same time, an anti-error point is provided on the inner wall of the armrest frame 1 at a position opposite to the anti-error platform 35. The cam 3 can be quickly and accurately installed by aligning the anti-error platform 35 with the anti-error point on the inner wall of the armrest frame.

[0026] Embodiment 2

[0027] like Figure 5-Figure 7 As shown, this embodiment 2 adds an armrest limiting structure 11 on the basis of embodiment 1. The armrest limiting structure 11 is an existing structure, the application date is November 20, 2023, and the application number is 202323123948X. The armrest limiting structure 11 is mutually engaged with the card point 101 on the inner wall of the armrest frame to prevent the armrest from making noise after being closed. The armrest limiting structure 11 is arranged between the cam 3 and the armrest frame 1, and the end of the connecting shaft 4 away from the cam 3 passes through the armrest limiting structure 11, the side wall of the armrest frame 1 and the side wall of the backrest frame 6 in turn, and is covered with a gasket 7 and a first card 8, and the connecting shaft 4 is fixed by a bolt 9.

[0028] like Figure 8 and Fig. 9 As shown, a second card 43 is provided in the middle of the connecting shaft 4 to be engaged with the armrest limiting structure 11, and an anti-error point 44 is provided on the side of the second card 43 close to the cam 3. A plurality of splines 41 are evenly distributed on the circumference of the connecting shaft 4 at the right end of the second card 43, and a fixing groove 42 is provided at one end of the connecting shaft 4 close to the cam 3. The locking plate 5 is arranged in the fixing groove 42, so that the cam 3 is fixed on the connecting shaft 4 between the second card 43 and the locking plate 5, and the armrest limiting structure 11 is connected to the connecting shaft 4 at the left end of the second card 43.

[0029] like Figure 8 and Fig. 9 As shown, the cam 3 is a stepped cylindrical shape, with a connecting end 31 at the left end and a contact end 32 at the right end. A spline hole 33 is laterally provided in the middle of the cam 3 for cooperating with a plurality of splines 41 on the connecting shaft 4. The connecting end 31 is provided with an anti-error platform 35 for cooperating with the anti-error point 44 at a position relative to the anti-error point 44. The bottom of the contact end 32 has a convex ridge 34 for contacting with the micro switch 2.

[0030] Working process

[0031] The utility model can control whether the heating function of the seat cushion and the middle armrest is turned on or off through the electrical components of the interior, and can also turn off the heating function of the middle armrest alone by closing the armrest. When the middle armrest rotates toward the seat back, the microswitch 2 in the armrest frame 1 moves in the direction of the cam 3. Since the connecting shaft 4 is fixed by the bolt 9, the connecting shaft 4 and the structure on the connecting shaft 4, such as the cam 3, the locking plate 4, the washer 7, the first card 8 and the armrest limiting structure 11 are all fixed. As the middle armrest is closed, the microswitch 2 touches the cam 3, and the cam 3 triggers the microswitch 2 to disconnect the circuit of the heating pad in the upper cover assembly 10, so that the heating function of the middle armrest is turned off.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the utility model, rather than to limit them. Although the embodiments of the utility model are described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the embodiments of the utility model.

Claims

1. A seat middle armrest with controllable heating function, characterized in that: The invention comprises an armrest frame (1), a micro switch (2), a cam (3), a connecting shaft (4), a locking plate (5), a washer (7), a first card (8), a bolt (9) and an upper cover assembly (10). A micro switch (2) is provided on a side of the armrest frame (1) close to the rotating shaft. The micro switch (2) contacts or separates from the cam (3) when the armrest frame (1) rotates. The middle part of the cam (3) passes through one end of the connecting shaft (4) and is fixed by a locking plate (5). The other end of the connecting shaft (4) passes through the side walls of the armrest frame (1) and the backrest frame (6) in sequence and is covered with a washer (7) and a first card (8). The connecting shaft (4) is fixed by a bolt (9). The wiring harness of the micro switch (2) is connected in series with the wiring harness of the upper cover assembly (10). The upper cover assembly (10) is arranged on the armrest frame (1).

2. The seat center armrest with controllable heating function according to claim 1, characterized in that: A plurality of splines (41) are evenly distributed on the circumference of the connecting shaft (4), a fixing groove (42) is provided at one end of the connecting shaft (4) close to the cam (3), and the locking plate (5) is arranged in the fixing groove (42), so that the cam (3) is fixed on the connecting shaft (4).

3. The seat center armrest with controllable heating function according to claim 2, characterized in that: The cam (3) is a stepped cylindrical shape, with one end facing away from the locking plate (5) being a connecting end (31) and the other end close to the locking plate (5) being a contact end (32). A spline hole (33) cooperating with a plurality of splines (41) on the connecting shaft (4) is transversely arranged in the middle of the whole cam (3), and a convex ridge (34) contacting with the micro switch (2) is provided at the bottom of the contact end (32).

4. The seat center armrest with controllable heating function according to claim 3, characterized in that: An anti-mistake platform (35) is provided on the connecting end (31), and an anti-mistake point is provided on the inner wall of the handrail frame (1) at a position relative to the anti-mistake platform (35).

5. The seat center armrest with controllable heating function according to claim 1, characterized in that: It also includes an armrest limiting structure (11), and the end of the connecting shaft (4) away from the cam (3) passes through the armrest limiting structure (11), the side wall of the armrest frame (1) and the side wall of the backrest frame (6) in sequence, and is then covered with a gasket (7) and a first card (8), and the connecting shaft (4) is fixed by a bolt (9).

6. The seat center armrest with controllable heating function according to claim 5, characterized in that: A second card (43) is provided in the middle of the connecting shaft (4) and is engaged with the handrail limiting structure (11); a plurality of splines (41) are evenly distributed on the circumference of the connecting shaft (4) at one end of the second card (43); a fixing groove (42) is provided at one end of the connecting shaft (4) close to the cam (3); the locking plate (5) is arranged in the fixing groove (42), so that the cam (3) is fixed to one end of the connecting shaft (4); and the handrail limiting structure (11) is connected to the connecting shaft (4) at the other end of the second card (43).

7. The seat center armrest with controllable heating function according to claim 6, characterized in that: The cam (3) is a stepped cylindrical shape, with one end facing away from the locking plate (5) being a connecting end (31) and the other end close to the locking plate (5) being a contact end (32). A spline hole (33) cooperating with a plurality of splines (41) on the connecting shaft (4) is transversely arranged in the middle of the whole cam (3), and a convex ridge (34) contacting with the micro switch (2) is provided at the bottom of the contact end (32).

8. The seat center armrest with controllable heating function according to claim 7, characterized in that: The second card (43) has an anti-error point (44) on one side close to the cam (3), and the connection end (31) has an anti-error platform (35) that cooperates with the anti-error point (44) at a position relative to the anti-error point (44).

9. The seat middle armrest with controllable heating function according to claim 3 or 7, characterized in that: The cam (3) is a plastic part made of PUM material.

10. The seat center armrest with controllable heating function according to claim 1, characterized in that: A storage box is provided inside the armrest frame (1), and one end of the storage box close to the backrest frame (6) is rotatably connected to the upper cover assembly (10).

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