Pressing module

Abstract

The utility model discloses a pressing module, and relates to the field of automobiles. The pressing module comprises a panel, a bottom plate and a pressure sensing assembly, the panel and the bottom plate are arranged at an interval, the panel comprises a base plate, the base plate comprises a pressing part, a fixing part and a weakening area connected between the pressing part and the fixing part, the weakening area comprises a groove body, the groove body is provided with an opening facing the bottom plate, and an elastic filling body is arranged in the groove body; the pressure sensing assembly is arranged between the bottom plate and the pressing part and abuts against the pressing part. By arranging the elastic filling body in the groove body, the rigidity of the pressing part of the substrate can be effectively adjusted, so that the panel and the pressure sensing assembly can be better matched, and the reliability of the pressing module is better. Furthermore, an elastic filling body is arranged in the groove body, so that the problem that the surface of the panel is repeatedly pressed to generate creases at the position corresponding to the weakening area can be relieved, and the attractiveness of the pressing module can be maintained.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobiles, in particular, to a pressing module. BACKGROUND

[0002] The pressing module is widely used in automobiles. Generally, piezoelectric components are used in the pressing module, which can detect external pressing and output an electric signal to a control component; and the control component outputs a relevant control instruction according to the electric signal to control a relevant device. In some scenarios, the pressing module also has the function of outputting momentum outward, for example, the piezoelectric module can output vibration outward when receiving an electric signal, and the vibration can be perceived by a user as a prompt signal. The pressing module usually includes a panel, which is a component in contact with the user and can accept pressing operation and transmit vibration to the user, so part of the panel can deform to a certain extent when pressed or vibrated. In order to realize the perception of pressure and the output of momentum outward, a certain pre-pressing is required between the panel and the piezoelectric component in the pressing module, otherwise the vibration of the piezoelectric component cannot be transmitted to the panel. Due to the characteristics of the piezoelectric component, the pre-pressing amount needs to be accurately controlled within a small range. In the existing pressing module, the local stiffness of the panel is not easy to adjust, and it is seriously dependent on the characteristics of the panel material itself, so the pre-pressing force between the panel and the piezoelectric component and the displacement amount when the panel deforms locally are not easy to control. This leads to poor matching between the panel and the piezoelectric component, poor reliability of the pressing module, and problems such as failure of pressure detection and ineffective transmission of vibration. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the present application includes providing a pressing module with higher reliability.

[0004] Embodiments of the present application can be implemented as follows:

[0005] The present application provides a pressing module, comprising a panel, a bottom plate and a pressure sensing component, the panel and the bottom plate are arranged in a spaced manner, the panel comprises a substrate, the substrate comprises a pressing portion, a fixed portion and a weakened area arranged between the pressing portion and the fixed portion, the weakened area at least partially surrounds the outer periphery of the pressing portion, the weakened area comprises a groove, the groove has an opening facing the bottom plate, and an elastic filler is arranged in the groove; the pressure sensing component is arranged between the bottom plate and the pressing portion and abuts against the pressing portion.

[0006] In an optional embodiment, the weakened area comprises at least one groove, and the at least one groove at least partially surrounds the outer periphery of the pressing portion.

[0007] In an optional embodiment, the depth of the groove is less than or equal to the thickness of the substrate.

[0008] In an optional embodiment, the height of the elastic filling body along the side facing away from the panel is less than, equal to, or greater than the depth of the groove body.

[0009] In an optional embodiment, the elastic filling body protrudes from, is flush with, or is recessed from the surface of the panel facing the side of the bottom plate.

[0010] In an optional embodiment, the pressure sensing assembly directly or indirectly abuts the pressing portion.

[0011] In an optional embodiment, at least one side of the pressing portion is directly connected to the fixing portion, and the remaining edges of the pressing portion are separated from the fixing portion by the weakened area.

[0012] In an optional embodiment, the material of the elastic filling body is thermoplastic polyurethane, thermoplastic polyolefin, thermoplastic rubber, thermoplastic elastomer, or silicone.

[0013] In an optional embodiment, the base plate is an injection molded part.

[0014] In an optional embodiment, the panel further comprises a surface layer covering the side of the base plate facing away from the bottom plate.

[0015] In an optional embodiment, the surface layer comprises at least one of an IML film, a wood sheet, a leather layer, and a fabric layer.

[0016] In an optional embodiment, the side of the panel facing away from the bottom plate is provided with an identifier, and the area where the projection of the identifier on the pressing portion is located is the beacon area of the pressing portion, and the area where the pressing portion abuts the pressure sensing assembly is the pressure sensing area of the pressing portion.

[0017] The pressure sensing area and the beacon area at least partially overlap, or the pressure sensing area and the beacon area are staggered.

[0018] In an optional embodiment, the pressing module further comprises a control assembly, which is provided on the bottom plate and is electrically connected to the pressure sensing assembly.

[0019] In an optional embodiment, the pressing module further comprises a cover connected to the bottom plate, the opening of the cover faces the bottom plate, and the control assembly is located in the cover; the side of the cover facing away from the bottom plate is connected to the panel, and the pressure sensing assembly is provided between the cover and the panel.

[0020] In an optional embodiment, the pressing module further comprises a capacitive diaphragm arranged on the panel.

[0021] In an optional embodiment, the pressure sensing assembly comprises a piezoelectric sheet or a pressure sensor.

[0022] The pressing module provided by the embodiments of the present application has the following beneficial effects:

[0023] The pressing module provided by the embodiments of the present application comprises a panel, a bottom plate and a pressure sensing assembly. The panel is arranged apart from the bottom plate. The panel comprises a substrate. The substrate comprises a pressing portion, a fixed portion and a weakened area connected between the pressing portion and the fixed portion. The weakened area at least partially surrounds the outer circumferential side of the pressing portion. The weakened area comprises a groove body having an opening facing the bottom plate. An elastic filler is arranged in the groove body. The pressure sensing assembly is arranged between the bottom plate and the pressing portion and abuts against the pressing portion. In the embodiments of the present application, because the structural strength of the weakened area is lower than that of other parts of the substrate, when the pressing portion is subjected to an external force, the pressing portion can be displaced relative to the fixed portion, thereby transmitting pressure to the pressure sensing assembly or transmitting vibration generated by the pressure sensing assembly to a user. The elastic filler is arranged in the groove body of the weakened area, so that the rigidity of the pressing portion is no longer limited by the material of the substrate itself. The filling degree and material selection of the elastic filler can adjust the rigidity of the pressing portion of the substrate. Therefore, in the pressing module provided by the embodiments of the present application, the pressing portion and the pressure sensing assembly can be better matched, that is, the pressing portion can have a suitable stroke when deformed by an external force, and a suitable pre-pressure between the pressure sensing assembly. Therefore, in the pressing module provided by the embodiments of the present application, the problem of pressure and vibration transmission failure caused by the pressure sensing assembly and the panel being too tightly or insufficiently pre-pressed is less likely to occur, so the reliability of the pressing module is better. Further, the elastic filler arranged in the groove body of the weakened area has a certain supporting effect, which can alleviate the problem of creases on the surface of the panel at the position corresponding to the weakened area due to repeated pressing, thereby helping to maintain the aesthetics of the pressing module. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0025] Figure 1 A schematic view of the pressing module in an embodiment of the present application;

[0026] Figure 2Fig. 1 is a first schematic view of a substrate facing a bottom plate in an embodiment of the present application;

[0027] Figure 3 Fig. 2 is a second schematic view of the substrate facing the bottom plate in the embodiment of the present application;

[0028] Figure 4 Fig. 3 is a third schematic view of the substrate facing the bottom plate in the embodiment of the present application;

[0029] Figure 5 Fig. 4 is a fourth schematic view of the substrate facing the bottom plate in the embodiment of the present application;

[0030] Figure 6 Fig. 5 is a first schematic view of a panel in an embodiment of the present application;

[0031] Figure 7 Fig. 6 is a second schematic view of the panel in the embodiment of the present application;

[0032] Figure 8 Fig. 7 is a third schematic view of the panel in the embodiment of the present application;

[0033] Figure 9 Fig. 8 is a fourth schematic view of the panel in the embodiment of the present application;

[0034] Figure 10 Fig. 9 is a schematic view of a pressing module in another embodiment of the present application;

[0035] Figure 11 Fig. 10 is a schematic view of an automobile.

[0036] Icon: 100 - panel; 101 - weakened area; 110 - substrate; 111 - pressing portion; 1111 - beacon area; 1112 - pressure sensing area; 112 - fixing portion; 113 - groove; 120 - surface layer; 130 - elastic filling body; 200 - bottom plate; 300 - pressure sensing assembly; 400 - control assembly; 500 - cover body; 600 - capacitive diaphragm; 1 - steering wheel; 2 - center control panel; 3 - door and window switch; 4 - armrest screen; 5 - decorative strip touch switch; 6 - tailgate. DETAILED DESCRIPTION

[0037] In order to make the objects, technical solutions, and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings for the embodiments of the present application to clearly and completely describe the technical solutions of the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0038] The following detailed description of embodiments of the application in the drawings provided merely by way of exemplification is not intended to limit the scope of the application, but rather, as illustrative embodiments of the application. Based upon a review of the disclosure provided herein, those of ordinary skill in the art will appreciate that an array of substitutions, modifications, and reversions, embodying the spirit and scope of the application, can be made without departing from the spirit and scope of the application.

[0039] It should be noted that like reference numerals and letters refer to like items in the several views of the drawings, and as such, definitions and explanations of such items need not be further defined and explained in the several views.

[0040] In the description of the application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the utility model product in use, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0041] In addition, if the terms "first", "second" and the like appear, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0042] It should be noted that the features in the embodiments of the application can be combined with each other without conflict.

[0043] In the pressing module, a certain pre-pressure is generally required between the panel and the pressure sensing assembly, so that the pressing of the user can be timely transmitted to the pressure sensing assembly, or the vibration generated by the pressure sensing assembly can be transmitted to the panel and then to the user. Too large or too small pre-pressure will have adverse effects. When the pre-pressure is too large, the vibration energy is absorbed by the panel, the vibration is suppressed, and the vibration transmitted to the user will be less. When the pre-pressure is insufficient, the pressure sensing assembly and the panel are not well combined, and after long-term use, the two may separate, resulting in that the pressing operation of the user cannot be recognized (the user feels that the sensitivity is decreased), and the vibration of the pressure sensing assembly cannot be effectively transmitted. Due to the characteristics of the pressure sensing assembly, the control range of the pre-pressure is very small, and in the related art, a precise adjustment mechanism is generally used to control the pre-pressure control, and a suspension structure is designed by using a spring sheet, silica gel, rubber and the like. The deformation of multiple structural members and high-temperature deformation easily leads to a decrease in pre-pressure, and even separation, resulting in that the pressure and vibration cannot be transmitted and the function fails. Therefore, the pressing module in the related art has poor reliability. If only the elasticity of the panel itself is relied on to realize the pre-pressure and momentum transmission, it is seriously limited by the panel itself material, resulting in that the local stiffness of the panel is not easy to accurately adjust to match the pressure sensing assembly, and therefore the demand for momentum transmission cannot be well met. In addition, the pressing module in the related art is prone to show creases on the surface of the panel after long-term use, affecting the aesthetic appearance.

[0044] To improve at least one of the above-mentioned deficiencies in the related art, the embodiments of the present application provide a pressing module, by setting an elastic filling body in the slot of the weakened area on the substrate, so that the pressing part of the substrate can have appropriate stiffness to cooperate with the pressure sensing assembly, and the reliability of the pressing module is improved.

[0045] Figure 1 A schematic view of the pressing module in an embodiment of the present application. As shown in Figure 1 The pressing module provided by the embodiments of the present application includes a panel 100, a bottom plate 200 and a pressure sensing assembly 300. The panel 100 and the bottom plate 200 are arranged in a spaced manner, and the panel 100 includes a substrate 110. The substrate 110 includes a pressing part 111, a fixed part 112 and a weakened area 101 (see Figures 2 to 5), the weakened area 101 at least partially surrounds the pressing portion 111. The weakened area 101 includes at least one groove 113 having an opening facing the bottom plate 200, and the elastic filling body 130 is arranged in the groove 113. The pressure sensing assembly 300 is arranged between the bottom plate 200 and the pressing portion 111, and directly or indirectly abuts against the pressing portion 111. It should be understood that the weakened area 101 at least partially surrounds the pressing portion 111 includes the case that the weakened area 101 surrounds or semi-surrounds the pressing portion 111. In the embodiment, the at least one groove 113 at least partially surrounds the pressing portion 111.

[0046] In the embodiment, the area of the panel 100 corresponding to the pressing portion 111 is used to receive the pressing force applied by the user. Because the groove 113 is arranged in the weakened area 101, the substrate 110 at the groove 113 is thinned or even penetrated, so that the strength of the weakened area 101 is lower than that of other positions of the substrate 110. When the pressing portion 111 receives the pressing force in the direction of the bottom plate 200, the deformation occurs at the weakened area 101, so that at least part of the pressing portion 111 (for example, the position adjacent to the weakened area 101) can be displaced in the direction of the bottom plate 200. The displacement of the pressing portion 111 can press the pressure sensing assembly 300, and the pressure sensing assembly 300 can detect the change of the pressure and convert the pressure into an electrical signal and output. In addition, the pressure sensing assembly 300 in the embodiment can also receive the electrical signal and convert the electrical energy into momentum and transmit to the pressing portion 111, for example, the pressure sensing assembly 300 can convert the electrical energy into vibration and transmit the vibration to the pressing portion 111 of the substrate 110. It can be seen that the pressing module provided in the embodiment can realize the function of pressure sensing and the function of vibration feedback, so that the interaction demand of the user can be better met.

[0047] In the embodiment, the panel 100 further comprises a surface layer 120 covering the side of the substrate 110 away from the bottom plate 200. The surface layer 120 is usually directly accessible by the user, i.e. the user can press on the surface layer 120 with his hand to indirectly press the pressing part 111 on the substrate 110. Therefore, the surface layer 120 can be made of a material with good touch feeling or good appearance. Optionally, the surface layer 120 comprises at least one of an IML film, a wood sheet, a leather layer and a fabric layer; for example, the surface layer 120 is one of an IML film, a wood sheet, a leather layer and a fabric layer, or the surface layer 120 is a composite layer structure formed by stacking two or more of an IML film, a wood sheet, a leather layer and a fabric layer. The IML film refers to a film made by an In-Mold Labeling process, i.e. an injection-molded film. Since the mechanical properties of the panel 100 are mainly provided by the substrate 110, covering the surface of the substrate 110 with a surface layer 120 can not only improve the touch feeling and appearance, but also protect the substrate 110 from external influences, such as water vapor, static electricity, heat sources and physical scratching.

[0048] Figure 2 A first schematic view of the side of the substrate 110 facing the bottom plate 200 in the embodiment; Figure 3 A second schematic view of the side of the substrate 110 facing the bottom plate 200 in the embodiment; Figure 4 A third schematic view of the side of the substrate 110 facing the bottom plate 200 in the embodiment. As shown in the figure, Figures 2 to 4 In the embodiment, the weakened area 101 (the area enclosed by the denser dashed line in the figure) of the substrate 110 is arranged around the outer periphery of the pressing part 111, and the fixing part 112 is arranged around the outer periphery of the weakened area 101. The fixing part 112 can be connected to the bottom plate 200 or other structures fixed relative to the bottom plate 200. Since the weakened area 101 is arranged around the outer periphery of the pressing part 111, when the pressing part 111 is pressed, the overall pressing part 111 can displace a certain amount relative to the fixing part 112, thanks to the weakened strength of the weakened area 101 due to the groove 113. Optionally, the displaceable amount of the pressing part 111 relative to its equilibrium position is 0.05-0.1 mm, and the equilibrium position of the pressing part 111 is the position of the pressing part 111 when the key module is at rest and not subjected to external forces. The displaceable amount of the pressing part 111 needs to be determined in combination with the type of the pressure sensing assembly 300, the assembly tolerance between components, etc.

[0049] As shown in the figure, Figure 2As shown, optionally, the weakening region 101 includes a plurality of discontinuous grooves 113, which are arranged around the outer periphery of the pressing part 111. This arrangement means that the substrate 110 between two adjacent grooves 113 is not thinned. The depth of the groove 113 is less than or equal to the thickness of the substrate 110. Optionally, at least a portion of the grooves 113 penetrate the substrate 110 along the thickness direction, that is, at least a portion of the grooves 113 is equal to the thickness of the substrate 110; alternatively, all the grooves 113 penetrate the substrate 110 along the thickness direction, that is, all the grooves 113 have a depth equal to the thickness of the substrate 110. When the groove 113 is a through groove, the pressing part 111 and the fixing part 112 are connected by a connecting part between adjacent grooves 113. When the pressing part 111 is pressed in a direction perpendicular to the thickness of the substrate 110, the connecting part will be deformed by shear force, so that the pressing part 111 as a whole can be displaced relative to the fixing part 112.

[0050] like Figure 3 As shown, optionally, the weakening region 101 includes a continuous groove 113. The groove 113 forms a closed structure around the outer peripheral layer of the pressing part 111. That is, the surface of the pressing part 111 facing the base plate 200 and the surface of the fixing part 112 facing the base plate 200 are completely separated by the opening of the groove 113, and the groove 113 forms a fully enclosed enclosure of the pressing part 111. Furthermore, the depth of the groove 113 is less than the thickness of the substrate 110, so that the pressing part 111 and the fixing part 112 are physically connected through the bottom of the groove 113. It can be understood that the bottom thickness of the groove 113 is thinner than other parts of the substrate 110. Therefore, when the pressing part 111 is squeezed in a direction perpendicular to the thickness of the substrate 110, the bottom of the groove 113 will be subjected to shear force and deform, so that the pressing part 111 as a whole can be displaced relative to the fixing part 112.

[0051] exist Figure 3 In one embodiment, the groove 113 forms a rectangular shape, which also makes the pressing part 111 rectangular. In other optional embodiments, the shape of the pressing part 111 can be set as needed, for example, it can be triangular (e.g., Figure 4 (as shown), trapezoidal, pentagonal, hexagonal, circular, elliptical, or other irregular shapes.

[0052] Figure 5 This is a fourth schematic diagram showing the side of the substrate 110 facing the base plate 200 in an embodiment of this application. Figure 5As shown, optionally, one side of the pressing portion 111 is not connected to the fixing portion 112 through the weakening area 101, but is directly connected to the fixing portion 112, and the other sides of the pressing portion 111 are separated from the fixing portion 112 by the weakening area 101, that is, the weakening area 101 forms a semi-surrounding (or partial surrounding) of the pressing portion 111. In this case, when the pressing portion 111 is subjected to pressure, an uneven displacement amount will occur relative to the fixing portion 112; it can be understood that the portion of the pressing portion 111 adjacent to the weakening area 101 is prone to displacement relative to the fixing portion 112, while the portion of the pressing portion 111 connected to the fixing portion 112 is not prone to displacement relative to the fixing portion 112. In Figure 5 In the illustrated embodiment, the right end of the pressing portion 111 is directly connected to the fixing portion 112, and the substrate 110 is not weakened between the right end of the pressing portion 111 and the fixing portion 112 by means such as grooving, so the right end of the pressing portion 111 is not prone to displacement relative to the fixing portion 112; while the left end and the upper and lower sides of the pressing portion 111 are adjacent to the weakening area 101 (specifically, the groove 113), so it is prone to displacement relative to the fixing portion 112 due to extrusion.

[0053] Furthermore, in Figure 5 the embodiment, the groove 113 continuously extends along the edge of the pressing portion 111, and the groove 113 penetrates the substrate 110 along the thickness direction of the substrate 110. As Figure 5 shown, the pressing portion 111 is rectangular, and the groove 113 extends along three of the sides of the pressing portion 111 to form a "匚" shape. In other optional embodiments, the groove 113 may also not penetrate the substrate 110, that is, the depth of the groove 113 is less than the thickness of the substrate 110; or, the weakening area 101 includes multiple discontinuous grooves 113, and the multiple discontinuous grooves 113 are arranged around three sides of the pressing portion 111.

[0054] It should be understood that whether the groove 113 penetrates the substrate 110 and the depth of the groove 113 both affect the rigidity of the pressing part 111 of the substrate 110, that is, the ease with which the pressing part 111 is displaced relative to the fixing part 112 under pressure. Therefore, whether the groove 113 penetrates the substrate 110 and the depth of the groove 113 can be reasonably selected according to the required rigidity. In addition, the material of the substrate 110 itself is also an important factor affecting the rigidity of the pressing part 111. Optionally, the substrate 110 is a one-piece structure, specifically an injection-molded part. Optionally, the material of the substrate 110 is polycarbonate (PC) or a composite injection molding material (such as PC + acrylonitrile-butadiene-styrene copolymer). In this application, the groove 113 can be a strip-shaped groove, or a square groove, which includes two parallel and spaced-apart sidewalls, or other shapes such as a dovetail groove or a T-shaped groove; or, when the weakening region 101 includes multiple discontinuous grooves 113, the groove 113 can also be a through hole, such as a circular through hole or a square through hole.

[0055] Figure 6 This is a first schematic diagram of panel 100 in an embodiment of this application; Figure 7 This is a second schematic diagram of panel 100 in an embodiment of this application; Figure 8 This is a third schematic diagram of panel 100 in an embodiment of this application;

[0056] Figure 9 This is a fourth schematic diagram of panel 100 in an embodiment of this application. For example... Figures 6 to 9 As shown, in this embodiment, the elastic filler 130 can fill a portion of the groove 113, or it can completely fill the groove 113; alternatively, a portion of the elastic filler 130 completely fills the groove 113, while another portion extends beyond the groove 113. That is, the height of the elastic filler 130 along the side facing away from the panel 100 is less than, equal to, or greater than the depth of the groove 113, such that the elastic filler 130 along the side facing away from the panel 100 protrudes from, is flush with, or is recessed into the surface of the panel 100 facing the base plate 200. Figure 6 In the illustrated embodiment, the groove 113 penetrates the substrate 110, and one end of the groove 113 in its depth direction (specifically, the end away from the base plate 200) is blocked by the surface layer 120. In the depth direction of the groove 113, an elastic filler 130 fills a portion of the groove 113 near the surface layer 120, while a portion adjacent to the opening of the groove 113 is not filled with the elastic filler 130. The elastic filler 130 is directly connected to the surface layer 120. Figure 7In the illustrated embodiment, the groove 113 penetrates the substrate 110, and the elastic filler 130 completely fills the groove 113, with one end of the elastic filler 130 directly connected to the surface layer 120 and the other end flush with the opening of the groove 113. Figure 8 In the illustrated embodiment, the groove 113 penetrates the substrate 110, and the elastic filler 130 completely fills the groove 113, with one end of the elastic filler 130 directly connected to the surface layer 120 and the other end flush with the opening of the groove 113. Figure 9 In the illustrated embodiment, the groove 113 does not penetrate the substrate 110, i.e., the depth of the groove 113 is less than the thickness of the substrate 110; the elastic filler 130 completely fills the groove 113, with one end of the elastic filler 130 directly connected to the bottom of the groove 113 and the other end extending out of the opening of the groove 113.

[0057] It should be understood that the elastic filler 130 is arranged in the groove 113, and when the pressing portion 111 is pressed by an external force, the elastic filler 130 will be deformed by shearing force, and thus the elastic filler 130 will also affect the rigidity of the pressing portion 111, i.e., will affect the difficulty of displacement of the pressing portion 111 relative to the fixed portion 112 when pressed. In the case of the same arrangement of the groove 113, the greater the filling amount of the elastic filler 130 in the groove 113, the greater the rigidity of the pressing portion 111, and the more difficult the displacement of the pressing portion 111 when subjected to an external force; the smaller the filling amount of the elastic filler 130 in the groove 113, the smaller the rigidity of the pressing portion 111, and the easier the displacement of the pressing portion 111 when subjected to an external force. In addition, the elastic modulus of the elastic filler 130 will also affect the rigidity of the pressing portion 111, and generally, the greater the elastic modulus of the elastic filler 130, the greater the rigidity of the pressing portion 111, and the smaller the elastic modulus of the elastic filler 130, the smaller the rigidity of the pressing portion 111.

[0058] Optionally, the material of the elastic filler 130 is thermoplastic polyurethane (TPU), thermoplastic polyolefin (TPO), thermoplastic rubber (TPR), thermoplastic elastomer (TPE), or silicone. The elastic filler 130 can be integrally formed by an injection molding process. The elastic filler 130 can be connected to the substrate 110 and / or the surface layer 120 by adhesion, clamping, or the like, or can be fixed in the groove 113 by interference fit.

[0059] In the embodiments of the present application, the local rigidity adjustment of the substrate 110 can be achieved by the elastic filler 130, so that the panel 100 can better cooperate with the pressure sensing assembly 300 and better play the functions of pressure sensing and vibration feedback. The elastic filler 130 can also provide a certain elastic restoring force, so that the panel 100 can recover to the balanced state as much as possible after the pressing is released, and is not easy to fail due to repeated pressing. In addition, when the pressing module is used repeatedly, the position of the panel 100 corresponding to the weakened area 101 is easy to produce a crease, especially when the groove body 113 penetrates the substrate 110, the surface layer 120 corresponding to the position of the groove body 113 lacks the support of the substrate 110, and is easy to produce a crease. In the case of setting the elastic filler 130, the elastic filler 130 can effectively support the surface layer 120, thereby alleviating the problem of crease production and improving the aesthetics of the pressing module. Compared with the prior art, the use of the elastic filler 130 can reduce the use of other structural members (such as spring sheets) for adjusting the rigidity, the tolerance accumulation is small, and the accumulated tolerance is easy to control.

[0060] The pressing module provided by the embodiments of the present application can reduce the demand for the driving capability of the pressure sensing assembly 300, thereby saving the cost of the pressure sensing assembly 300.

[0061] Optionally, a logo is arranged on the side of the panel 100 away from the bottom plate 200, the projection area of the logo on the pressing part 111 is a beacon area 1111 of the pressing part 111, and the area where the pressing part 111 abuts against the pressure sensing assembly 300 is a pressure sensing area 1112 of the pressing part 111. In the embodiments, the logo can facilitate the user to identify the function of the pressing module, and the logo can be formed by a pattern protruding from the surface of the panel 100. In the embodiments, the logo can be a pattern formed by the elastic filler 130, and the logo can be a pattern formed by the surface layer 120. Figures 2 to 5In some embodiments, the pressure sensing region 1112 is arranged separately from the beacon region 1111. The area enclosed by the dashed line on the pressing portion 111 in the figure is the pressure sensing region 1112 and the beacon region 1111. It can be understood that the beacon region 1111 is often the region directly pressed by the user, and the deformation at this position is large. By adjusting the relative position of the beacon region 1111 and the pressure sensing region 1112, the amount of extrusion of the pressure sensing assembly 300 and the vibration feedback of the beacon region 1111 when the pressure sensing assembly 300 vibrates can be adjusted. For example, when the beacon region 1111 is close to the pressure sensing region 1112, the amount of extrusion of the pressure sensing assembly 300 is large, and the vibration feedback is relatively strong. When the beacon region 1111 is far from the pressure sensing region 1112, the amount of extrusion of the pressure sensing assembly 300 is small, and the vibration feedback is relatively weak. In other embodiments, the pressure sensing region 1112 at least partially overlaps with the beacon region 1111. In this case, the amount of extrusion of the pressure sensing assembly 300 and the vibration feedback of the beacon region 1111 when the pressure sensing assembly 300 vibrates are both large. In one case, the mark on the panel 100 and the position of the pressure sensing assembly 300 supported by the pressing portion 111 are directly opposite in the thickness direction of the substrate 110.

[0062] Figure 10 FIG. 4 is a schematic view of a pressing module according to another embodiment of the present application. As shown in the figure, the pressing module further includes a control assembly 400. The control assembly 400 is arranged on the bottom plate 200, and the control assembly 400 is electrically connected to the pressure sensing assembly 300. The control assembly 400 can receive the electrical signal fed back by the pressure sensing assembly 300, so as to identify whether the pressing module is pressed. In addition, the control assembly 400 can also output a control signal to the pressure sensing assembly 300, so that the pressure sensing assembly 300 generates vibration and transmits the vibration to the user through the panel 100, so as to play a prompting role. Figure 10

[0063] Further, the pressing module further includes a cover 500 connected to the bottom plate 200. The opening of the cover 500 faces the bottom plate 200, and the control assembly 400 is located in the cover 500. The side of the cover 500 away from the bottom plate 200 is connected to the panel 100, and the pressure sensing assembly 300 is arranged between the cover 500 and the panel 100. In this embodiment, the control assembly 400 can be effectively protected by arranging the cover 500. At the same time, the cover 500 also plays a supporting role for the pressure sensing assembly 300.

[0064] Optionally, the cover 500 and the bottom plate 200, and the cover 500 and the panel 100 can be connected in a manner of bonding, clamping, or through fasteners such as screws.

[0065] ​Optionally, the pressure sensing component 300 comprises a piezoelectric sheet or a pressure sensor. The piezoelectric sheet can output an electric signal when subjected to pressure, thereby detecting the user's pressing, and can also convert the received electric energy into vibration to output to the pressing part 111, thereby providing feedback to the user. Therefore, in the case where the pressure sensing component 300 comprises a piezoelectric sheet, the detection of pressure and the output of momentum can be simultaneously achieved. The pressure sensor can be a MEMS sensor. In addition, the pressing module can also separately configure an excitation device to detect the user's pressing through the pressure sensing component 300 and to achieve vibration feedback by using the excitation device. The excitation device can convert an electric signal into mechanical displacement (such as vibration) by using the piezoelectric effect. The selected types of excitation devices include but are not limited to stack actuators, bimorph or unimorph actuators, and tube actuators.

[0066] Optionally, the pressing module further comprises a capacitive diaphragm 600 arranged on the panel 100, and the capacitive diaphragm 600 can detect the user's touch, so that the panel 100 has a touch function.

[0067] The pressing module provided by the embodiments of the present application can be applied in various devices, such as a car, a household appliance, a machine tool, experimental equipment or other intelligent devices. Figure 11 Fig. 1 is a schematic diagram of a car. When the pressing module is applied in a car, the pressing module can be specifically applied in a steering wheel 1, a center console panel 2, a door and window switch 3, an armrest screen 4, a decorative strip touch switch 5, a tailgate 6 and a door handle switch.

[0068] In summary, the embodiment of the present application provides a pressing module, the pressing module comprises a panel 100, a bottom plate 200 and a pressure sensing assembly 300, the panel 100 is arranged in a spaced manner with the bottom plate 200, the panel 100 comprises a substrate 110, the substrate 110 comprises a pressing portion 111, a fixed portion 112 and a weakened area 101 connected between the pressing portion 111 and the fixed portion 112, the weakened area 101 at least partially surrounds the outer circumferential side of the pressing portion 111, the weakened area 101 comprises a groove body 113, the groove body 113 has an opening towards the bottom plate 200, and an elastic filler 130 is arranged in the groove body 113; the pressure sensing assembly 300 is arranged between the bottom plate 200 and the pressing portion 111 and abuts against the pressing portion 111. In the embodiment of the present application, since the structural strength of the weakened area 101 is lower than that of other parts of the substrate 110, when the pressing portion 111 is subjected to an external force, the displacement amount of the pressing portion 111 relative to the fixed portion 112 can be generated, so as to transmit the pressure to the pressure sensing assembly 300 or transmit the vibration generated by the pressure sensing assembly 300 to the user. The elastic filler 130 is arranged in the groove body 113 of the weakened area 101, so that the rigidity of the pressing portion 111 is no longer limited by the material of the substrate 110 itself, and the filling degree and material selection of the elastic filler 130 can adjust the rigidity of the pressing portion 111 of the substrate 110. Therefore, in the pressing module provided by the embodiment of the present application, the pressing portion 111 and the pressure sensing assembly 300 can be better matched, that is, the pressing portion 111 can have a suitable stroke when deformed by an external force, and a suitable pre-pressure between the pressure sensing assembly 300. Therefore, in the pressing module provided by the embodiment of the present application, the problem of pressure and vibration transmission failure caused by the pressure sensing assembly 300 and the panel 100 being too tight or insufficiently pre-pressed is not easy to occur, so that the reliability of the pressing module is better. Further, the elastic filler 130 is arranged in the groove body 113 of the weakened area 101, so that the elastic filler 130 has a certain supporting effect, which can alleviate the problem of creases on the surface of the panel 100 at the position corresponding to the weakened area 101 due to repeated pressing, thereby being beneficial to maintaining the aesthetics of the pressing module.

[0069] The above merely describes the specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any changes or replacements within the technical range disclosed by the present application can be easily thought by those skilled in the art, which shall be covered within the protection scope of the present application.

Claims

1. A pressing module, characterized in that, The device includes a panel (100), a base plate (200), and a pressure sensing component (300). The panel (100) and the base plate (200) are spaced apart. The panel (100) includes a substrate (110). The substrate (110) includes a pressing part (111), a fixing part (112), and a weakening region (101) disposed between the pressing part (111) and the fixing part (112). The weakening region (101) is at least partially disposed around the outer periphery of the pressing part (111). The weakening region includes a groove (113) with an opening facing the base plate (200). An elastic filler (130) is disposed in the groove (113). The pressure sensing component (300) is disposed between the base plate (200) and the pressing part (111) and abuts against the pressing part (111).

2. The pressing module according to claim 1, characterized in that, The weakened area includes at least one of the grooves (113), which at least partially surround the outer periphery of the pressing part (111).

3. The pressing module according to claim 1, characterized in that, The depth of the groove (113) is less than or equal to the thickness of the substrate (110).

4. The pressing module according to claim 1, characterized in that, The height of the elastic filler (130) on the side facing away from the panel (100) is less than, equal to or greater than the depth of the groove (113).

5. The pressing module according to claim 1, characterized in that, The elastic filler (130) protrudes, is flush with, or is recessed on the side of the panel (100) facing away from the panel (100) on the side of the panel (100) facing the base plate (200).

6. The pressing module according to claim 1, characterized in that, The pressure sensing component (300) directly or indirectly abuts against the pressing part (111).

7. The pressing module according to claim 1, characterized in that, At least one side of the pressing part (111) is directly connected to the fixing part (112), and the remaining edges of the pressing part (111) are separated from the fixing part (112) by the weakening area.

8. The pressing module according to any one of claims 1-7, characterized in that, The elastic filler (130) is made of thermoplastic polyurethane, thermoplastic polyolefin, thermoplastic rubber, thermoplastic elastomer or silicone.

9. The pressing module according to any one of claims 1-7, characterized in that, The substrate (110) is an injection molded part.

10. The pressing module according to any one of claims 1-7, characterized in that, The panel (100) further includes a surface layer (120) that covers the side of the substrate (110) facing away from the base plate (200).

11. The pressing module according to claim 10, characterized in that, The surface layer (120) is one of an IML film, a wood chip, a leather layer, and a fabric layer; or, the surface layer (120) is a composite layer structure formed by stacking two or more of the IML film, wood chip, leather layer, and fabric layer.

12. The pressing module according to any one of claims 1-7, characterized in that, The panel (100) has a mark on the side opposite to the base plate (200). The area where the mark is projected onto the pressing part (111) is the beacon area (1111) of the pressing part (111). The area where the pressing part (111) abuts against the pressure sensing component (300) is the pressure sensing area (1112) of the pressing part (111). The pressure sensing area (1112) at least partially overlaps with the beacon area (1111); or the pressure sensing area (1112) is offset from the beacon area (1111).

13. The pressing module according to any one of claims 1-7, characterized in that, The pressing module also includes a control component (400), which is disposed on the base plate (200) and electrically connected to the pressure sensing component (300).

14. The pressing module according to claim 13, characterized in that, The pressing module also includes a cover (500) connected to the base plate (200), the opening of the cover (500) facing the base plate (200), and the control component (400) located inside the cover (500); the side of the cover (500) away from the base plate (200) is connected to the panel (100), and the pressure sensing component (300) is disposed between the cover (500) and the panel (100).

15. The pressing module according to any one of claims 1-7, characterized in that, The pressing module also includes a capacitor diaphragm (320) disposed on the panel (100).

16. The pressing module according to any one of claims 1-7, characterized in that, The pressure sensing component includes a piezoelectric element or a pressure sensor.

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