Novel cushion switch power-on and power-off structure

Abstract

The utility model relates to the technical field of engineering vehicle seats, in particular to a novel seat cushion switch power-on and power-off structure, which comprises a seat cushion body, a plastic plate and a sheet switch fixed between the seat cushion body and the plastic plate. The chip switch sequentially comprises a polyester film layer, an elastic spacing layer and a plurality of groups of contacts from outside to inside. When the seat cushion is used, the sheet-type switch is arranged between the seat cushion body and the plastic plate, and a plurality of groups of contacts are arranged in the sheet-type switch, so that when the seat cushion body is pressed to enable any group of contacts to be in contact, the seat cushion switch can be electrified, and the action range of the seat cushion switch is expanded; and meanwhile, the sheet switch adopts a wrapping form, so that the contact is wrapped, the influence of environmental factors such as dust and moisture is prevented, and the service life of the seat cushion switch is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering vehicle seats, in particular to a novel seat cushion switch on-off structure. Background Art

[0002] In the field of engineering vehicle seat design, seat cushion switches are a critical link between the vehicle's power management system and safety. Their performance and reliability directly impact the driving experience and operational safety. Traditionally, these switches use a curved metal plate as a trigger element. The pressure from the driver sitting down deforms the metal plate, which in turn presses a micro-mechanical switch underneath, switching the circuit on and off. However, this design has exposed several significant issues in practice.

[0003] Firstly, the problem of the limited range of the seat switch is rooted in design limitations. Specifically, the size of the metal plate is fixed within a small range to accommodate the compact layout of the seat's interior space, which directly limits the size of the trigger area. In addition, the contact is designed as a single-point contact, and the contact area is relatively small, so that the switch can only be effectively triggered when the driver sits directly above the metal plate and applies sufficient pressure. This design ignores the differences in drivers of different body shapes and possible slight displacements during driving, resulting in some drivers inadvertently leaving the effective trigger area during driving, especially when adjusting their sitting position after driving for a long time, causing the entire vehicle to lose power.

[0004] On the other hand, power-on / off failures are more often linked to a combination of material wear, fatigue, and environmental factors. The contact between the metal plate and the microswitch contacts inevitably wears out after prolonged, high-frequency pressing, resulting in a gradual decrease in the flatness and contact pressure of the contact surface. Furthermore, the intrusion of environmental factors such as dust and moisture can further exacerbate poor contact. In particular, when an oxide layer forms on the contact surface or dirt accumulates, even deformation of the metal plate can no longer ensure a stable electrical connection, leading to power-on / off failures.

[0005] In view of this, we propose a new seat cushion switch on-off structure. Utility Model Content

[0006] The purpose of this utility model is to provide a new seat switch power on / off structure to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A new seat cushion switch on-off structure includes a seat cushion body and a plastic plate, and also includes a sheet switch. The sheet switch is fixed between the seat cushion body and the plastic plate. The sheet switch includes a polyester film layer, an elastic spacer layer and several groups of contacts from the outside to the inside.

[0009] As a further solution of the present invention: an adhesive layer is provided on one side of the polyester film layer, and the adhesive layer is used to fix the chip switch to the inner side of the plastic plate.

[0010] As a further solution of the present invention: the spacer layer is an elastic rubber layer, a cavity is defined in the spacer layer, and the contacts are fixed on the upper and lower sides of the cavity.

[0011] As a further solution of the present invention: the plastic plate is provided with a through hole, and the chip switch further includes a wire connected to the contact, and the wire passes through the through hole and is connected to an external circuit.

[0012] As a further solution of the present invention: the cushion body is fixedly connected to the plastic plate, and the cushion body includes a sponge, and the outer side of the sponge is wrapped with leather.

[0013] As a further solution of the present invention: a protruding structure is further provided on the inner side of the plastic plate, and the protruding structure is used for installing and positioning the sheet switch and supporting the sponge.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In the new seat switch on-off structure, a sheet switch is set between the seat body and the plastic plate, and multiple groups of contacts are set in the sheet switch. When the seat body is pressed and any group of contacts touches, the seat switch can be energized, thereby increasing the range of the seat switch.

[0016] 2. In the new seat switch on-off structure, the sheet switch is wrapped so that the contacts are wrapped, thereby blocking the influence of environmental factors such as dust and moisture (moisture is removed), thereby increasing the service life of the seat switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of this scheme;

[0018] Figure 2 This is a schematic diagram of the plastic plate structure of this solution;

[0019] Figure 3 This is the installation diagram of the chip switch of this solution;

[0020] Figure 4 This is a schematic diagram of the chip switch structure of this solution.

[0021] The meaning of each number in the figure is:

[0022] 1. Seat cushion body; 2. Sheet switch; 21. Polyester film layer; 22. Spacer layer; 23. Contact; 24. Adhesive layer; 3. Plastic plate; 4. Raised structure; 5. Through hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example

[0025] Currently, traditional seat switches use a curved metal plate as a trigger element. The pressure from the driver sitting down deforms the metal plate, which in turn presses a micro-mechanical switch underneath, switching the circuit on and off. However, this design has several significant problems in practice:

[0026] First, due to design limitations, the seat switch has a limited range of action. It can only be effectively triggered when the driver sits directly above the metal plate and applies sufficient pressure.

[0027] Secondly, due to environmental factors such as dust and moisture, the micro mechanical switch may have poor contact.

[0028] Therefore, see Figure 1 and Figure 4 As shown, the purpose of this embodiment is to provide a new seat cushion switch on-off structure, including a seat cushion body 1, a plastic plate 3 and a sheet switch 2. The seat cushion body 1 and the plastic plate 3 are fixed to the plastic plate 3 with staples, and the sheet switch 2 is fixed between the seat cushion body 1 and the plastic plate 3. Considering the convenience of the driver to trigger the seat cushion switch, rather than having to sit in a specific position on the seat cushion to trigger the seat cushion switch, unlike the traditional switch, the sheet switch 2 has a wider setting range between the seat cushion body 1 and the plastic plate 3. The driver only needs to sit on the seat cushion body 1 to trigger the sheet switch 2;

[0029] Taking into account that after long-term use, the influence of environmental factors such as dust and moisture is inevitable, therefore, the chip switch 2 is improved. The chip switch 2 includes a polyester film layer 21, an elastic spacer layer 22 and several groups of contacts 23 from the outside to the inside. The several groups of contacts 23 are wrapped by the polyester film layer 21 and the spacer layer 22, so that the contacts 23 are not in contact with the external environment, thereby avoiding the influence of environmental factors such as dust and moisture.

[0030] The improvement of this embodiment lies in that: by arranging a sheet switch 2 between the seat cushion body 1 and the plastic plate 3, and providing multiple groups of contacts 23 in the sheet switch 2, when the seat cushion body 1 is pressurized so that any group of contacts 23 are in contact, the seat cushion switch can be energized, thereby increasing the range of action of the seat cushion switch; at the same time, the sheet switch 2 is in a wrapped form, so that the contacts 23 are wrapped, thereby blocking the influence of environmental factors such as dust and moisture, and increasing the service life of the seat cushion switch.

[0031] The chip switch 2 further discloses that the spacer layer 22 is an elastic rubber layer, and the spacer layer 22 defines a cavity. Contacts 23 are fixed to the upper and lower sides of the cavity. When the seat cushion body 1 is under pressure, the polyester film layer 21 is also under pressure, and the contacts 23 come into contact, and the seat cushion is energized. When the seat cushion body 1 is not under pressure, the elastic force of the elastic rubber layer causes the contacts 23 to separate and reset, and the seat cushion is de-energized.

[0032] Since the sheet switch 2 is disposed between the seat cushion body 1 and the plastic plate 3, the sheet switch 2 is easily dislodged from its original position during repeated pressing. Therefore, an adhesive layer 24 is provided on one side of the polyester film layer 21 to secure the sheet switch 2 to the inner side of the plastic plate 3, thereby preventing the sheet switch 2 from being displaced.

[0033] like Figure 2 As shown, considering that the chip switch 2 also needs to be connected to an external circuit, the plastic plate 3 is provided with a through hole 5 to facilitate wiring. The chip switch 2 also includes a wire connected to the contact 23, and the wire passes through the through hole 5 to be connected to the external circuit.

[0034] Since the seat cushion body 1 also needs to have a certain degree of elasticity, when the driver sits on the seat cushion body 1, the seat cushion body 1 needs to undergo elastic deformation, so that the seat cushion body 1 is under pressure and the force is transmitted to the sheet switch 2; when the driver leaves the seat cushion body 1, the seat cushion body 1 needs to return to its original state to cut off the power to the sheet switch 2. Therefore, the seat cushion body 1 includes a sponge, and the outside of the sponge is wrapped with leather. The elasticity of the leather and the sponge is used to give the seat cushion body 1 elasticity.

[0035] like Figure 3As shown, it should be noted that in order to improve the accuracy of the chip switch 2 being pasted on the inner side of the plastic plate 3, a protruding structure 4 is further provided on the inner side of the plastic plate 3. The protruding structure 4 is used to limit the installation position of the chip switch 2, thereby improving the pasting accuracy of the chip switch 2. At the same time, the protruding structure 4 can support the sponge, thereby avoiding the illusion of failure of the chip switch 2 caused by the slow rebound of the sponge.

[0036] In summary, the working principle of this solution is as follows:

[0037] Pass the wire of the chip switch 2 through the through hole 5 to connect it to the external circuit, and stick the chip switch 2 on the inner side of the plastic plate 3 along the raised structure 4. After the seat cushion body 1 covers the chip switch 2, staple the seat cushion body 1 to the plastic plate 3. When the driver sits on the seat cushion body 1, the seat cushion body 1 is compressed and elastically deformed, and the force is transmitted to the polyester film layer 21. When the transmitted force is greater than the elastic force of the spacer layer 22, the polyester film layer 21 is deformed, causing the contacts 23 on the upper and lower sides of the cavity of the spacer layer 22 to contact, and the seat cushion is energized; when the driver leaves the seat cushion body 1, the elastic force of the spacer layer 22 causes the polyester film layer 21 to reset, thereby driving the contacts 23 to separate and reset, and the seat cushion is de-energized.

[0038] Although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0039] Therefore, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application; that is, all equivalent modifications made according to the scope of the claims of the present application are within the scope of protection of the claims of the present application.

Claims

1. A novel seat cushion switch on / off structure, comprising a seat cushion body (1) and a plastic plate (3), characterized in that: The invention also includes a sheet switch (2), which is fixed between the seat cushion body (1) and the plastic plate (3). The sheet switch (2) includes, from the outside to the inside, a polyester film layer (21), an elastic spacer layer (22), and a plurality of contact points (23).

2. The novel seat switch on / off structure according to claim 1 is characterized in that: An adhesive layer (24) is provided on one side of the polyester film layer (21), and the adhesive layer (24) is used to fix the sheet switch (2) to the inner side of the plastic plate (3).

3. The novel seat switch on / off structure according to claim 1 is characterized in that: The spacer layer (22) is an elastic rubber layer, a cavity is formed in the spacer layer (22), and the contacts (23) are fixed on the upper and lower sides of the cavity.

4. The novel seat switch on / off structure according to claim 1 is characterized in that: The plastic plate (3) is provided with a through hole (5), and the sheet-type switch (2) further comprises a wire connected to the contact (23), and the wire passes through the through hole (5) and is connected to an external circuit.

5. The novel seat switch on / off structure according to claim 1 is characterized in that: The seat cushion body (1) is fixedly connected to the plastic plate (3), and the seat cushion body (1) comprises a sponge, the outer side of which is wrapped with leather.

6. The novel seat cushion switch on / off structure according to claim 1 is characterized by: A protruding structure (4) is also provided on the inner side of the plastic plate (3), and the protruding structure (4) is used for installing and positioning the sheet switch (2) and supporting the sponge.

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