Pressure-adjustable cushion sensing device and electric vehicle

Abstract

The utility model belongs to the technical field of electric vehicles, and discloses a pressure-adjustable cushion sensing device and an electric vehicle, the pressure-adjustable cushion sensing device comprises a shell, a box body, an end cover, an elastic assembly and a sensing assembly, the shell is arranged on a bottom plate of a cushion, the box body is arranged in the shell, a plurality of clamping grooves are formed in the inner circumferential wall of the box body, and the end cover is arranged in the clamping grooves. The multiple clamping grooves are formed in the height direction of the box body at intervals, the end cover is located above the shell and attached to the sponge layer of the cushion, the sponge layer of the cushion does not need to be disassembled and assembled, disassembling and assembling are easy, the maintenance efficiency is improved, the elastic assembly is connected between the shell and the end cover, the sensing assembly comprises a pressing piece, a push rod and a sensing switch, and the sensing switch is arranged in the shell and is connected with the pressing piece. The pressing piece can be clamped to one of the multiple clamping grooves so as to adjust the distance between the pressing piece and the end cover, the pressure borne by the pressing piece can be more balanced under the gravity of different drivers, and therefore the sensing pressure of the cushion sensing device is adjusted, normal sensing of the cushion pressure can be achieved, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicles, in particular to an adjustable pressure cushion sensing device and an electric vehicle. Background Art

[0002] Electric vehicles have become a common means of transportation in people's lives, providing great convenience for people's travel. At the same time, electric vehicles also pose many safety risks. For example, when an electric vehicle is in the starting state but the driver is not in the driver's seat, the driver or others may accidentally touch the electric vehicle, causing the electric vehicle to hit the vehicle, ultimately causing damage to the vehicle or injury.

[0003] Existing seat cushion sensors are embedded in the sponge layer of the seat cushion. When the driver sits on the cushion, the sensor is squeezed, generating a trigger signal. However, these sensors are mounted using double-sided tape, which results in unstable mounting. High temperatures can cause the film to stick, reducing sensing effectiveness and leading to a high failure rate. Furthermore, these sensors cannot be removed from the seat cushion. Furthermore, when operating with an overweight or underweight driver, the seat cushion sensor cannot effectively sense the driver's pressure, affecting the electric vehicle's sensing function and resulting in poor sensitivity.

[0004] Therefore, there is an urgent need for an adjustable pressure cushion sensing device and an electric vehicle to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an adjustable pressure seat cushion sensing device and an electric vehicle, which solves the problems of pressure adaptability and sensitivity for drivers of different weights and maintenance and replacement without disassembling the sponge cushion.

[0006] In order to solve the above problems existing in the prior art, the present invention adopts the following technical solutions:

[0007] Adjustable pressure cushion sensor, including:

[0008] A shell is provided on the bottom plate of the seat cushion;

[0009] A box body is arranged in the shell, and the inner peripheral wall of the box body is provided with a plurality of card slots, and the plurality of card slots are arranged at intervals along the height direction of the box body;

[0010] an end cover, located above the shell, and attached to the sponge layer of the seat cushion;

[0011] an elastic component connected between the shell and the end cover;

[0012] The sensing component includes a pressing piece, a push rod and a sensing switch. The sensing switch is arranged in the shell. The pressing piece can be snapped into one of the multiple slots to adjust the distance between the pressing piece and the end cover. The pressing piece is connected to the push rod. The push rod can contact and open the sensing switch under the elastic action of the pressing piece.

[0013] Preferably, the pressing sheet has an arched structure.

[0014] Preferably, the pressing piece includes two clamping parts and an arched part, the two clamping parts are respectively connected to the two ends of the arched part, the clamping part can be clamped to one of the multiple clamping slots, and the arched part is connected to the push rod.

[0015] Preferably, the elastic component includes a plurality of elastic members, and the plurality of elastic members are arranged at intervals along the circumferential direction of the shell.

[0016] Preferably, the elastic member is configured as a compression spring or a torsion spring.

[0017] Preferably, the card slot is extended along the circumferential direction of the box body.

[0018] Preferably, the adjustable pressure cushion sensing device further comprises a buckle, which is provided on the shell, and a groove is provided on the bottom plate of the cushion, and the shell is snapped into the groove via the buckle.

[0019] Preferably, the adjustable pressure cushion sensing device further comprises a positioning member, which is arranged at the bottom of the shell and is detachably connected to the bottom plate of the cushion.

[0020] Preferably, a wiring groove is provided on the bottom plate of the seat cushion, and the induction switch is electrically connected to the control module of the electric vehicle via a wiring harness, and the wiring harness is clamped in the wiring groove.

[0021] To achieve the above-mentioned purpose, the utility model also provides an electric vehicle, including a seat cushion and the above-mentioned adjustable pressure seat cushion sensing device, the seat cushion including a base plate and a sponge layer, the sponge layer is covered on the base plate, the adjustable pressure seat cushion sensing device is embedded in the base plate, and the adjustable pressure seat cushion sensing device is in contact with the sponge layer.

[0022] The beneficial effects of the utility model are:

[0023] The utility model provides an adjustable pressure seat cushion sensing device, wherein the housing is arranged on the bottom plate of the seat cushion, the box body is arranged in the housing, the inner peripheral wall of the box body is provided with a plurality of slots, and the plurality of slots are arranged at intervals along the height direction of the box body, the end cover is located above the housing, the end cover is attached to the sponge layer of the seat cushion, and the elastic component is connected between the housing and the end cover. The sensing component includes a pressing plate, a push rod and a sensing switch, the sensing switch is arranged in the housing, the pressing plate can be snapped into one of the plurality of slots to adjust the spacing between the pressing plate and the end cover, and the pressing plate is connected to the push rod, and the push rod can contact and open the sensing switch under the elastic action of the pressing plate. When the driver rides an electric vehicle, the sponge layer of the seat cushion is acted upon by the driver's gravity, causing the end cover to gradually approach the pressing plate and contact the pressing plate, causing the pressing plate to deform and generate a lateral driving force, pushing the push rod to gradually approach and contact the sensing switch, and the sensing switch is turned on, thereby triggering functions such as starting and driving recognition of the electric vehicle. By adjusting the pressure plate to select one of multiple slots, the spacing between the pressure plate and the end cap is adjusted, ensuring more balanced pressure on the pressure plate under different driver weights. This allows for the adjustment of the seat cushion sensing device's sensing pressure, ensuring proper seat cushion pressure sensing and a wide range of applications. Furthermore, the adjustable pressure seat cushion sensing device can be directly removed from the housing to adjust the pressure plate, eliminating the need to disassemble the seat cushion's sponge layer. This simplifies assembly and disassembly, improving maintenance efficiency.

[0024] The utility model provides an electric vehicle, comprising a seat cushion and an adjustable pressure seat cushion sensing device. The seat cushion comprises a base plate and a sponge layer, the sponge layer being disposed over the base plate, and the adjustable pressure seat cushion sensing device being embedded in the base plate, the adjustable pressure seat cushion sensing device being in contact with the sponge layer. When the driver rides the electric vehicle, the seat cushion, under the action of the driver's weight, gradually approaches and contacts a pressure plate, deforming the pressure plate and generating a lateral force, which pushes a push rod gradually toward and contacts a sensing switch, turning the sensing switch on, thereby triggering functions such as starting the electric vehicle and driver identification. Because different drivers have different weights, the pressure plate can be adjusted by selecting one of multiple slots to adjust the spacing between the pressure plate and the end cap, so that the pressure applied to the pressure plate is more balanced under different drivers' weights, thereby adjusting the sensing pressure of the seat cushion sensing device. Normal seat cushion pressure sensing can be achieved under different pressures corresponding to different weights of drivers, thus achieving a wide range of applications. Furthermore, there is no need to disassemble or assemble the sponge layer of the electric vehicle seat cushion, simplifying disassembly and improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is an exploded schematic diagram of the bottom plate and sponge layer provided in Example 1 of the present utility model;

[0026] Figure 2 This is a structural diagram of a seat cushion provided in Example 1 of the present utility model;

[0027] Figure 3This is a schematic structural diagram of the adjustable pressure cushion sensing device provided in Example 1 of the present utility model;

[0028] Figure 4 This is a structural diagram of the adjustable pressure cushion sensing device provided in Example 2 of the present utility model.

[0029] Reference numerals:

[0030] 100, bottom plate; 101, wiring trough; 200, sponge layer;

[0031] 1. Shell;

[0032] 2. Box body;

[0033] 3. End cap;

[0034] 4. Elastic component; 41. Elastic member;

[0035] 5. Sensing assembly; 51. Pressing piece; 511. Clamping portion; 512. Arched portion; 52. Push rod; 53. Sensing switch;

[0036] 6. Buckle;

[0037] 7. Positioning parts. DETAILED DESCRIPTION

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0039] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; 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 the specific circumstances.

[0040] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0041] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0042] Example 1

[0043] like Figure 1-Figure 3 As shown, in this embodiment, the adjustable pressure seat cushion sensing device includes a housing 1, a box body 2, an end cap 3, an elastic component 4, and a sensing component 5. The housing 1 is disposed on the bottom plate 100 of the seat cushion, and the box body 2 is disposed within the housing 1. The inner peripheral wall of the box body 2 is provided with multiple slots, which are spaced apart along the height direction of the box body 2. The end cap 3 is located above the housing 1 and fits against the sponge layer 200 of the seat cushion. The elastic component 4 is connected between the housing 1 and the end cap 3. The sensing component 5 includes a pressing piece 51, a push rod 52, and a sensing switch 53. The sensing switch 53 is disposed within the housing 1. The pressing piece 51 can be engaged with one of the multiple slots to adjust the distance between the pressing piece 51 and the end cap 3. The pressing piece 51 is connected to the push rod 52. The push rod 52 can contact and activate the sensing switch 53 under the elastic action of the pressing piece 51. Specifically, the housing 1 is embedded and mounted on the bottom of the base plate 100. The housing 1 and the end cap 3 are respectively arranged at both ends of the elastic component 4 and are elastically connected under the action of the elastic component 4. The end cap 3 is located above the housing 1 and is in contact with the sponge layer 200. The housing 1 has a receiving cavity, and the box body 2 is arranged in the receiving cavity of the housing 1. The inner side wall of the box body 2 is provided with a plurality of slots at intervals along the height direction of the box body 2. The slots are used to fix the pressing piece 51. The pressing piece 51 has an elastic effect. At the same time, the pressing piece 51 is connected to the push rod 52, and the pressing piece 51 extends relative to the opening of the box body 2 and can be in contact with the end cap 3.

[0044] The adjustable pressure seat cushion sensing device operates as follows: When a driver rides an electric vehicle, the seat cushion's sponge layer 200, under the driver's weight, causes the end cap 3 to gradually approach and contact the pressing plate 51. This deforms the pressing plate 51 and generates a lateral force, pushing the push rod 52 toward and contacting the sensing switch 53. This switches the sensing switch 53 on, thereby triggering functions such as starting the electric vehicle and driver identification. Because different drivers have different weights, the pressure on the pressing plate 51 is adjusted by selecting one of the multiple slots along the height of the housing 2 to adjust the spacing between the pressing plate 51 and the end cap 3. This allows the pressure on the pressing plate 51 to be more evenly distributed under the weight of different drivers, thereby adjusting the sensing pressure of the seat cushion sensing device. This allows for normal seat cushion pressure sensing under varying pressures for drivers of different weights, resulting in a wide range of applications. Furthermore, the adjustable pressure seat cushion sensing device can be directly removed from the housing 1 to adjust the pressing plate 51, eliminating the need to remove the seat cushion's sponge layer 200. This simplifies assembly and disassembly, improving maintenance efficiency.

[0045] Preferably, there are multiple box bodies 2 and pressing plates 51, and the multiple box bodies 2 are distributed in a matrix, and a pressing plate 51 is provided corresponding to each box body 2. When the driver rides the electric vehicle, the sponge layer 200 of the seat cushion is affected by the gravity of the driver, so that the end cover 3 gradually approaches and contacts the multiple pressing plates 51 distributed at various positions of the shell 1. The multiple pressing plates 51 are deformed at the same time, thereby turning on the sensing switch 53 to increase the pressure sensing range of the seat cushion and improve the balance.

[0046] Further, continue to refer to Figure 1-Figure 3 The pressing plate 51 has an arched structure and includes two engaging portions 511 and an arched portion 512. The two engaging portions 511 are respectively connected to the ends of the arched portion 512. The engaging portions 511 can be engaged with one of a plurality of engaging slots, and the arched portion 512 is connected to the push rod 52. Specifically, the two engaging portions 511 can be engaged with one of a plurality of engaging slots to adjust the distance between the arched portion 512 and the end cover 3. This ensures that the pressure exerted on the arched portion 512 is more balanced under the weight of different drivers, thereby adjusting the sensing pressure of the seat cushion sensing device. Normal seat cushion pressure sensing can be achieved under different pressures corresponding to drivers of different weights.

[0047] Further, continue to refer to Figure 1-Figure 3The elastic assembly 4 includes a plurality of elastic members 41, which are spaced apart along the circumference of the housing 1. Specifically, the elastic members 41 are configured as compression springs and are disposed at the four corners of the housing 2. The end cap 3 and the sponge layer 200 are suspended above the housing 1 by the elastic assembly 4. The end cap 3 can be moved closer to or further away from the housing 2 under the elastic action of the elastic members 41. Furthermore, when the electric vehicle is not being driven by a driver, the elastic members 41 support the end cap 3 and overcome the weight of the sponge pad to ensure that the pressing plate 51 is not subjected to pressure to trigger the induction switch 53.

[0048] Further, continue to refer to Figure 1-Figure 3 The card slot is extended along the circumferential direction of the box body 2. Specifically, the pressing piece 51 can be adjusted relative to the box body 2 along the extending direction of the card slot, and there is no need to calibrate the position of the pressing piece 51 relative to the card slot for installation, thereby improving assembly and disassembly efficiency.

[0049] Further, continue to refer to Figure 1-Figure 3 The adjustable pressure cushion sensing device further includes a buckle 6, which is disposed on the housing 1. The bottom plate 100 of the seat cushion is provided with a groove, and the housing 1 is engaged with the buckle 6 via the buckle. Specifically, the adjustable pressure cushion sensing device is secured to the bottom plate 100 of the seat cushion via the buckle 6, eliminating the need for bolted fasteners and allowing for direct assembly and disassembly without the need for tools. This facilitates assembly and disassembly, and is simple to operate.

[0050] Further, continue to refer to Figure 1-Figure 3 The adjustable pressure cushion sensing device also includes a positioning member 7, which is disposed at the bottom of the housing 1 and is detachably connected to the seat base 100. Specifically, the adjustable pressure cushion sensing device is secured to the seat base 100 via a clip 6 and the positioning member 7. This provides a more secure connection between the seat cushion sensing device and the seat, ensuring that the adjustable pressure cushion sensing device will not become detached from the seat due to bumps or significant vibrations while the electric vehicle is in use.

[0051] Further, continue to refer to Figure 1-Figure 3 The bottom plate 100 of the seat cushion is provided with a wiring groove 101. The induction switch 53 is electrically connected to the control module of the electric vehicle via a wiring harness, which is clamped in the wiring groove 101. Specifically, when the driver rides the electric vehicle, the sponge layer 200 of the seat cushion is acted upon by the driver's gravity, causing the end cover 3 to gradually approach the pressing plate 51 and contact the pressing plate 51. The pressing plate 51 deforms and generates a lateral driving force, pushing the push rod 52 to gradually approach and contact the induction switch 53. The induction switch 53 is turned on, and the induction switch 53 sends a signal to the control module of the electric vehicle via the wiring harness in the wiring groove 101. The control module triggers functions such as starting the electric vehicle and driving recognition.

[0052] This embodiment also provides an electric vehicle, comprising a seat cushion and an adjustable pressure seat cushion sensing device. The seat cushion comprises a base plate 100 and a sponge layer 200, the sponge layer 200 being disposed on the base plate 100. The adjustable pressure seat cushion sensing device is embedded in the base plate 100, and the adjustable pressure seat cushion sensing device and the sponge layer 200 are in contact with each other. Specifically, when a driver rides an electric vehicle, the seat cushion, under the action of the driver's gravity, gradually approaches and contacts a pressing plate 51. The pressing plate 51 deforms and generates a lateral force, pushing a push rod 52 gradually toward and contacts a sensing switch 53, which turns on the sensing switch 53, thereby triggering functions such as starting the electric vehicle and driver recognition. Because different drivers have different weights, by adjusting the pressure plate 51 to select one of the multiple slots to insert it, the spacing between the pressure plate 51 and the end cap 3 is adjusted, so that the pressure on the pressure plate 51 is more balanced under the weight of different drivers, thereby adjusting the sensing pressure of the seat cushion sensing device. Normal seat cushion pressure sensing can be achieved under different pressures corresponding to drivers of different weights, thus having a wide range of applications. At the same time, there is no need to disassemble the sponge layer 200 of the electric vehicle seat cushion, which makes disassembly and assembly simple and improves maintenance efficiency.

[0053] Example 2

[0054] This embodiment provides an adjustable pressure cushion sensing device, which is basically the same as the adjustable pressure cushion sensing device of the first embodiment, except that the specific structure of the elastic member 41 and the connection method between the pressing plate 51 and the sensing switch 53 are different.

[0055] like Figure 4 As shown, in this embodiment, the pressing plate 51 is communicatively connected to the inductive switch 53, that is, the pressing plate 51 is electrically connected to the control circuit board, which can control the inductive switch 53 to be turned on or off. There is no need for a push rod 52 between the pressing plate 51 and the inductive switch 53. The elastic member 41 is configured as a torsion spring. The elastic member 41 is disposed at the pivotal connection between the end cap 3 and the housing 1, with its ends abutting the surfaces of the end cap 3 and the housing 1, respectively. The elastic member 41 supports the end cap 3, allowing it to be tilted relative to the housing 1, i.e., a hinge structure, which offsets the pressure from the sponge layer 200 and improves stability. When the driver rides an electric vehicle, the sponge layer 200 of the seat cushion is affected by the driver's weight, causing one side of the end cap 3 to rotate relative to the housing 1. The end cap 3 gradually closes the opening of the housing 1 and contacts the pressing plate 51, causing the pressing plate 51 to deform due to the pressure from the end cap 3. The pressing plate 51 then generates a high level signal to the control circuit board, which controls the inductive switch 53 to turn on, thereby triggering functions such as starting the electric vehicle and driver recognition.

[0056] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Adjustable pressure cushion sensing device, characterized in that: include: A housing (1) is arranged on a bottom plate (100) of a seat cushion; A box body (2) is arranged in the housing (1), and the inner peripheral wall of the box body (2) is provided with a plurality of card slots, and the plurality of card slots are arranged at intervals along the height direction of the box body (2); An end cover (3) is located above the shell (1), and the end cover (3) is attached to the sponge layer (200) of the seat cushion; an elastic component (4) connected between the housing (1) and the end cover (3); The induction component (5) comprises a pressing piece (51), a push rod (52) and an induction switch (53). The induction switch (53) is arranged in the housing (1). The pressing piece (51) can be engaged with one of the plurality of slots to adjust the distance between the pressing piece (51) and the end cover (3). The pressing piece (51) is connected to the push rod (52). The push rod (52) can contact and open the induction switch (53) under the elastic action of the pressing piece (51).

2. The adjustable pressure cushion sensing device according to claim 1, characterized in that: The pressing sheet (51) has an arched structure.

3. The adjustable pressure cushion sensing device according to claim 1, characterized in that: The pressing piece (51) comprises two clamping parts (511) and an arched part (512), wherein the two clamping parts (511) are respectively connected to the two ends of the arched part (512), the clamping part (511) can be clamped to one of the plurality of clamping slots, and the arched part (512) is connected to the push rod (52).

4. The adjustable pressure cushion sensing device according to claim 1, characterized in that: The elastic component (4) comprises a plurality of elastic members (41), and the plurality of elastic members (41) are arranged at intervals along the outer circumference of the housing (1).

5. The adjustable pressure cushion sensing device according to claim 4, characterized in that: The elastic member (41) is configured as a compression spring or a torsion spring.

6. The adjustable pressure cushion sensing device according to claim 1, characterized in that: The card slot is extended along the circumferential direction of the box body (2).

7. The adjustable pressure cushion sensing device according to claim 1, characterized in that: The adjustable pressure cushion sensing device further comprises a buckle (6), wherein the buckle (6) is arranged on the shell (1), the bottom plate (100) of the cushion is provided with a groove, and the shell (1) is snapped into the groove via the buckle (6).

8. The adjustable pressure cushion sensing device according to claim 1, characterized in that: The adjustable pressure cushion sensing device further comprises a positioning member (7), wherein the positioning member (7) is arranged at the bottom of the shell (1), and the positioning member (7) is detachably connected to the bottom plate (100) of the cushion.

9. The adjustable pressure cushion sensing device according to claim 1, characterized in that: The bottom plate (100) of the seat cushion is provided with a wiring groove (101), and the induction switch (53) is electrically connected to the control module of the electric vehicle via a wiring harness, and the wiring harness is clamped in the wiring groove (101).

10. An electric vehicle, characterized in that: The invention comprises a seat cushion and the adjustable pressure seat cushion sensing device according to any one of claims 1 to 9, wherein the seat cushion comprises a base plate (100) and a sponge layer (200), the sponge layer (200) is covered on the base plate (100), the adjustable pressure seat cushion sensing device is embedded in the base plate (100), and the adjustable pressure seat cushion sensing device is in contact with the sponge layer (200).

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