Patent Description:
As a portable electronic product, a notebook computer is deeply liked by users, and brings convenient and fast office and entertainment experience to the users. In the process of pursuing portability, notebook computers gradually tend to be extremely thin and light. This puts forward higher requirements for optimization and improvement of a structure of each part of the product. A touchpad is a key moving part in the notebook computer, and moving space of the touchpad has relatively great impact on a thickness of the entire notebook computer and user experience. Document <CIT> generally discloses a touch panel module and electronic equipment. The touch panel module is assembled in the electronic equipment and comprises a decoration panel, a touch panel and a balance assembly, wherein the touch panel is located below the decoration panel and leans against the decoration panel; the balance assembly is located below the touch panel and leans against the touch panel; the balance assembly is used for limiting at least part of the touch panel so that each position on at least part of the touch panel can generate the same displacement in a stress direction when the position is suffered from the same pressure. Document <CIT> generally discloses a touchpad assembly, which may include a bottom cover, a horizontal elastic member flexibly positioned on the bottom cover, a balancing bar disposed on the bottom cover and substantially parallel to the horizontal elastic member, and a metal dome. The metal dome may include a first end fixedly connected to the bottom cover via a first fixture, and a second end to hold the horizontal elastic member and the balancing bar such that the balancing bar is flexibly engaged with the bottom cover. The balancing bar, the metal dome, and the horizontal elastic member may control a flexure of a touchpad when the touchpad is pressed.

An objective of this application is to provide a touchpad assembly and an electronic device, so that an entire thickness of the touchpad assembly and a battery that are assembled is reduced by reducing a thickness of an end portion of a balance bar through compression. In particular, embodiments of the present invention are defined by the independent claims. Additional features of embodiments of the invention are presented in the dependent claims. In the following, parts of the description and drawings referring to former embodiments which do not necessarily comprise all features to implement embodiments of the claimed invention are not represented as embodiments of the invention but as examples useful for understanding the embodiments of the invention. Embodiments of the present application (or the present disclosure) provide a touchpad assembly used for an electronic device, and an electronic device.

The foregoing objective and another objective are achieved based on features in the independent claims. Further implementations are provided in the dependent claims, the specification, and the accompanying drawings.

According to a first aspect, a touchpad assembly is provided, which is used for an electronic device and includes:.

Because an existing touchpad assembly has a risk of interference between a balance bar and a battery, to reduce the risk of interference between the two, only a distance between the baseplate and the support can be increased, which increases an entire thickness of the touchpad assembly, and is not conducive to entire lightening and thinning of the electronic device. In addition, when the battery is designed close to an edge of the entire electronic device, an end of the battery is in contact with the second plate body, causing the entire electronic device to be thicker. The balance bar according to this application includes the main body portion and the supporting portions, and the end of the supporting portion away from the main body portion does not exceed the bottom surface of the first plate body, so that the balance bar does not interfere with the battery. Therefore, there is no need to increase the distance between the baseplate and the support, thereby reducing the entire thickness of the touchpad assembly and the battery that are assembled.

In a possible implementation, the supporting portion includes a first rod body and a second rod body connected to the first rod body;.

The second end portion of the second rod body is the bottommost end of the supporting portion. Because the second end portion does not exceed the bottom surface of the first plate body, the supporting portion does not interfere with the battery, thereby making the entire electronic device lighter and thinner.

In a possible implementation, in the thickness direction (H) of the touchpad assembly, a thickness of the second rod body is smaller than that of the first rod body.

Because the second rod body with a smaller thickness is provided, when the supporting portion penetrates through the first plate body, the second end portion of the second rod body is capable of not exceeding the bottom surface of the first plate body, thereby avoiding interfering with the battery, which is conductive to lightening and thinning of the entire electronic device. In addition, a ratio of a length of the first rod body to a length of the second rod body can be as large as possible. In this case, a width of the first plate body can be made as large as possible, so that larger space is provided to accommodate the battery, which can increase a battery capacity, thereby increasing a standby time of the entire electronic device.

In a possible implementation, the first rod body is in a shape of a cylinder; and the second rod body is in a shape of an elliptical column or a cylinder.

The arrangement of the shape of the cylinder or the elliptical column can facilitate processing.

In a possible implementation, the baseplate is provided with a clamping portion, and the set fulcrum is located at the clamping portion; and
the second rod body is provided with a mounting portion, and the mounting portion matches the clamping portion.

When the touchpad assembly is pressed, the touchpad drives the support to move downward, thereby driving the first end of the supporting portion to move downward, driving the balance bar to rotate around the mounting portion, and driving the second end portion to move upward to implement clicking; and the mounting portion matches the clamping portion when the supporting portion rotates, so that the entire touchpad assembly provides good hand feeling when moving downward.

In a possible implementation, the baseplate is provided with a through-hole, and the through-hole runs through the first plate body and the second plate body;.

The arrangement of the extension plate can facilitate the arrangement of the clamping portion, and the arrangement of the through-hole can reduce an entire weight of the touchpad assembly.

In a possible implementation, the clamping portion may further have a notch, and a shape of the notch can match the mounting portion to enable the clamping portion and the mounting portion to be clamped, thereby enabling the supporting portion to rotate.

In a possible implementation, the extension plate is integrally formed with the second plate body.

The second plate body and the extension plate that are integrally formed have the advantages of high strength and less susceptibility to deformation.

In a possible implementation, the baseplate further includes a step region, and the step region is connected between the first plate body and the second plate body.

In this application, to stagger a position of the battery and that of the second plate body to make the battery match the first plate body, a width of the second plate body needs to be compressed, that is, the step region is as close as possible to the second plate body, so that the position of the battery is staggered with that of the second plate body, and a region below the first plate body is larger and can accommodate the battery. When the battery is not in contact with the step region or the second plate body, but only located on a side edge at which the first plate body is connected to the step region, the entire electronic device is lighter and thinner. In addition, the arrangement of the step region can make the supporting portion inclined, so that a hand feeling effect is good.

In a possible implementation, the support includes a clamping groove, and the main body portion is clamped in the clamping groove.

When the touchpad assembly is pressed, the main body portion can rotate in the clamping groove, thereby enabling the supporting portion to rotate, so that the entire touchpad assembly provides good hand feeling when moving downward.

In a possible implementation, one of the baseplate and the support is provided with a clamping hole, the other is provided with a clamping block, and the clamping hole is clamped and matched with the clamping block.

The clamping hole is clamped and matched with the clamping block, so that limiting matching between the baseplate and the support is implemented, and the two can alternatively be combined through bonding by using adhesive.

In a possible implementation, the touchpad assembly further includes a circuit board, where the circuit board is connected to a side of the support away from the baseplate.

A switch is disposed on the circuit board, and the switch can be attached to a surface of the circuit board. When the touchpad assembly is pressed, the touchpad assembly can rotate slightly, which triggers operation of the switch, to implement an input function of a keyboard or a click function of a mouse.

In a possible implementation, the touchpad assembly includes a touchpad, where the touchpad is connected to a side of the circuit board away from the support.

The touchpad, the circuit board, the support, and the baseplate are connected in sequence to form the touchpad assembly.

According to a second aspect, an electronic device is further provided, including a display terminal and a system terminal, where the display terminal is rotatably connected to the system terminal, and the display terminal includes a display screen, which converts a video signal output by the system terminal into an image;.

In this application, the battery is installed between the first plate body and a lower housing of the electronic device, the battery and the second plate body are staggered, and the second end portion of the supporting portion of the balance bar does not exceed the bottom surface of the first plate body, so that the battery does not interfere with the second end portion of the supporting portion. This makes the touchpad assembly lighter and thinner, thereby making the entire electronic device lighter and thinner.

The technical solutions provided in this application may achieve the following beneficial effects.

The touchpad assembly according to this application includes a baseplate, a support, and a balance bar, where the balance bar is installed between the support and the baseplate, so that the touchpad assembly forms an integral module. Because an existing touchpad assembly has a risk of interference between a balance bar and a battery, to reduce the risk of interference between the two, only a distance between the baseplate and the support can be increased, which increases an entire thickness of the touchpad assembly, and is not conducive to entire lightening and thinning of the electronic device. In this application, an entire thickness of the touchpad assembly and the battery that are assembled is reduced by reducing a thickness of an end portion of the balance bar through compression, without the need to increase the distance between the baseplate and the support.

It should be understood that the foregoing general description and the following detailed description are merely examples, and cannot limit this application.

The accompanying drawings herein are incorporated into the specification and form a part of the specification, show embodiments conforming to this application, and are used together with the specification to explain a principle of this application.

To better understand the technical solutions of this application, the following describes embodiments of this application in detail with reference to the accompanying drawings.

The terms used in embodiments of this application are merely for the purpose of illustrating specific embodiments, and are not intended to limit this application. The terms "a" and "the" of singular forms used in the embodiments and the appended claims of this application are also intended to include plural forms, unless otherwise specified in the context clearly.

In addition, the character "/" in this specification usually indicates an "or" relationship between the associated objects.

It should be noted that, position words such as "above", "below", "left", and "right" described in embodiments of this application are described from angles shown in the accompanying drawings, and should not be construed as a limitation on embodiments of this application. Moreover, in the context, it also should be understood that, when it is mentioned that one element is connected "above" or "below" another element, it cannot only be directly connected "above" or "below" the another element, but also be indirectly connected "above" or "below" the another element by using an intermediate element.

<FIG> is a schematic diagram of a structure of an electronic device according to an embodiment of this application. As shown in <FIG>, this embodiment of this application provides an electronic device <NUM>, and the electronic device <NUM> may be a notebook computer or another electronic product. Taking a notebook computer as an example, the electronic device <NUM> may include a display terminal <NUM> and a system terminal <NUM>, where the display terminal <NUM> is rotatably connected to the system terminal <NUM>, and the display terminal <NUM> includes a display screen, which converts a video signal output by the system terminal <NUM> into an image. The system terminal <NUM> includes a keyboard <NUM> and a touchpad assembly <NUM>. The touchpad assembly <NUM> is provided mainly to improve portability of the electronic device <NUM>, and to control the electronic device <NUM> instead of a mouse, or the touchpad assembly <NUM> cooperates with the mouse to further improve portability of the electronic device.

<FIG> is a sectional view of a system terminal of an electronic device according to an embodiment of this application. As shown in <FIG>, to make proper use of space, a battery <NUM> of the electronic device <NUM> may be arranged below the touchpad assembly <NUM>, that is, between the touchpad assembly <NUM> and a lower housing of the electronic device <NUM>.

<FIG> is a partial enlarged view of the system terminal shown in <FIG>. As shown in <FIG>, the touchpad assembly <NUM> includes a baseplate <NUM>, a support <NUM>, and a balance bar <NUM> (see <FIG>). The support <NUM> is installed above the baseplate <NUM> in a thickness direction (H) of the touchpad assembly <NUM>, and the balance bar <NUM> is located in an installation region between the baseplate <NUM> and the support <NUM>. In the thickness direction (H) of the touchpad assembly <NUM>, a touchpad <NUM> and the baseplate <NUM> are oppositely arranged, and installation space is provided between the two. The support <NUM> and the balance bar <NUM> are located in the installation space, and a circuit board <NUM> is located between the baseplate <NUM> and the touchpad <NUM>. Two ends of the balance bar <NUM> are provided with supporting portions <NUM>, and the supporting portion <NUM> is provided with a first end portion 132c and a second end portion 132d in an axial direction thereof. A mounting portion 132e is provided between the first end portion 132c and the second end portion 132d. The mounting portion 132e is connected to the baseplate <NUM>. The first end portion 132c and the second end portion 132d can rotate around the mounting portion 132e, and have opposite rotation directions. In addition, the first end portion 132c of the balance bar <NUM> is connected to the support <NUM>. With a click on the electronic device <NUM> by using the touchpad assembly <NUM> as an example, a user presses the touchpad <NUM>, and the touchpad <NUM> drives the support <NUM> to move downward, to drive the first end portion 132c of the supporting portion <NUM> to move downward, drive the balance bar <NUM> to rotate around the mounting portion 132e, and make the second end portion 132d move upward, thereby implementing the click, and displaying a corresponding operation on the display terminal <NUM>.

<FIG> is a schematic diagram of a touchpad and supporting portions shown in <FIG>. To improve user experience in pressing the touchpad <NUM>, the supporting portion <NUM> can be obliquely arranged in the thickness direction (H), and the second end portion 132d is located below the first end portion 132c, that is, a preset included angle α is provided between the supporting portion <NUM> and the touchpad <NUM>. When the user presses the touchpad <NUM>, the setting of the preset included angle makes the first end portion 132c of the supporting portion <NUM> move downward by a set stroke. If the stroke is excessively short, it is difficult for the user to have pressing experience. Therefore, to improve the pressing experience of the user, the preset included angle should not be excessively small, that is, a distance between the baseplate <NUM> and the touchpad <NUM> should not be excessively small.

At present, through the arrangement of the balance bar <NUM>, an existing touchpad assembly <NUM> transmits torque when a single side is pressed (that is, when an end of the balance bar <NUM> is pressed, the entire balance bar <NUM> rotates slightly), so that the touchpad assembly <NUM> can move downward synchronously, to achieve the purpose of improving user experience. The balance bar <NUM> is installed between the support <NUM> and the baseplate <NUM>, so that the touchpad assembly <NUM> forms an integral module. As notebook computers are gradually becoming lighter and thinner, the thickness of the integral module becomes a key factor that affects lightening and thinning of the entire electronic device. The balance bar <NUM> of the existing touchpad assembly <NUM> is relatively thick, and the baseplate <NUM> cannot be effectively staggered from a battery. As a result, the touchpad assembly <NUM> occupies thickness space at the system terminal <NUM>, affecting lightening and thinning of the entire electronic device. In addition, the existing balance bar <NUM> is roughly cylindrical, and after the balance bar <NUM> is arranged obliquely, a risk that the second end portion 132d of the supporting portion <NUM> extends below the baseplate <NUM> exists, and thus a risk that the balance bar <NUM> interferes with the battery <NUM> exists. The risk of interference between the two can be reduced by increasing the distance between the baseplate <NUM> and the touchpad <NUM>. The method also increases an entire thickness of the touchpad assembly <NUM>, which is not conducive to entire lightening and thinning of the electronic device.

However, in the touchpad assembly and the electronic device according to this embodiment of this application, the thickness of the electronic device is reduced mainly by improving the structure of the touchpad assembly <NUM>.

<FIG> is an exploded view of a touchpad assembly according to an embodiment of this application. As shown in <FIG>, this embodiment of this application provides a touchpad assembly <NUM>, and a balance bar <NUM> is located between a baseplate <NUM> and a support <NUM>.

<FIG> is a sectional view of a battery installed below a touchpad assembly according to an embodiment of this application. As shown in <FIG>, the battery <NUM> is disposed on a side of the baseplate <NUM> away from the support <NUM>, and a positional relationship between the baseplate <NUM> and the support <NUM> in <FIG> is opposite to a positional relationship between the baseplate <NUM> and the support <NUM> in <FIG>.

<FIG> is a partial enlarged view of the touchpad assembly shown in <FIG>. As shown in <FIG>, the baseplate <NUM> includes a first plate body <NUM>, a step region <NUM>, and a second plate body <NUM>. The step region <NUM> connects the first plate body <NUM> to the second plate body <NUM>, and in the thickness direction (H) of the touchpad assembly <NUM>, the first plate body <NUM> is higher than the second plate body <NUM> with the battery <NUM> as a reference plane. The battery <NUM> is located between the first plate body <NUM> and the lower housing of the electronic device <NUM>, and the balance bar <NUM> is located between the second plate body <NUM> and the support <NUM>.

In this embodiment, an end of the battery <NUM> is located on a side edge of the first plate body <NUM> (the side edge connected to the step region <NUM>), and is not in contact with the step region <NUM> and the second plate body <NUM>, so that the battery <NUM> does not interfere with the step region <NUM> and the second plate body <NUM>. The support <NUM> is disposed on a side of the baseplate <NUM>. The balance bar <NUM> is supported between the support <NUM> and the baseplate <NUM>, and is capable of rotating around the mounting portion 132e of the baseplate <NUM>. When the support <NUM> is pressed, the balance bar <NUM> slightly rotates. When an end of the balance bar <NUM> is pressed, the entire balance bar <NUM> slightly rotates.

When the battery <NUM> is designed close to an edge of the entire electronic device, if an end of the battery <NUM> is in contact with the second plate body <NUM>, the entire electronic device is caused to be thicker. To stagger a position of the battery <NUM> from that of the second plate body <NUM> and make the battery <NUM> match the first plate body <NUM>, a width of the second plate body <NUM> needs to be reduced. In other words, the step region <NUM> should be as close as possible to the second plate body <NUM>, so that an end of the battery <NUM> is located on a side edge of the first plate body <NUM> (the side edge connected to the step region <NUM>). In this case, the balance bar <NUM> may penetrate through the first plate body <NUM>, causing interference with the battery <NUM>. In the touchpad assembly <NUM> according to this embodiment of this application, the position of the battery <NUM> is staggered from that of the second plate body <NUM>, and the second end portion 132d of the supporting portion <NUM> of the balance bar <NUM> does not exceed the bottom surface of the first plate body <NUM> in the thickness direction (H) of the touchpad assembly <NUM>. In this way, the battery <NUM> does not interfere with the second end portion 132d, thereby making the entire electronic device <NUM> lighter and thinner.

The existing balance bar <NUM> is arranged to be cylindrical, and after the balance bar <NUM> is arranged obliquely, a risk that the second end portion 132d of the supporting portion <NUM> extends below the baseplate <NUM> exists, and thus a risk that the balance bar <NUM> interferes with the battery <NUM> exists. Therefore, the second end portion 132d can be prevented from extending below the baseplate <NUM> by reducing the thickness of the second end portion 132d, thereby making the entire electronic device <NUM> lighter and thinner.

The step region <NUM> is arranged to make the supporting portion <NUM> inclined, so that a hand feeling effect is good. In this embodiment, the step region <NUM> is closer to the second plate body <NUM>, so that a region below the first plate body <NUM> is larger and can accommodate the battery <NUM>. When the battery <NUM> is not in contact with the step region <NUM> or the second plate body <NUM>, but only located on the side edge of the first plate body <NUM> (the side edge connected to the step region <NUM>), the entire electronic device is lighter and thinner.

<FIG> is a schematic diagram of a structure of a first balance bar of a touchpad assembly according to an embodiment of this application. As shown in <FIG>, the balance bar <NUM> includes a main body portion <NUM> and supporting portions <NUM> connected to two ends of the main body portion <NUM>. The main body portion <NUM> and the supporting portions <NUM> may be integrally formed to form a substantially U-shaped bar. Also referring to <FIG>, at least part A of the supporting portion <NUM> is located on the first plate body <NUM>, and the second end portion 132d of the supporting portion <NUM> does not exceed the bottom surface of the first plate body <NUM> in the thickness direction (H) of the touchpad assembly <NUM>.

<FIG> is a partial enlarged view of a first structure of the balance bar shown in <FIG>. As shown in <FIG>, the supporting portion <NUM> includes a first rod body 132a and a second rod body 132b. A first end of the first rod body 132a is a first end portion 132c, and the first end portion 132c is connected to the main body portion <NUM>. A second end of the first rod body 132a is connected to a first end of the second rod body 132b, and a second end of the second rod body 132b is a second end portion 132d. The second end portion 132d does not exceed the bottom surface of the first plate body <NUM>, and a thickness of the second rod body 132b is smaller than that of the first rod body 132a in the thickness direction (H) of the touchpad assembly <NUM>.

The first rod body 132a and the second rod body 132b can be formed through machining, for example, the second rod body 132b with a smaller thickness can be formed by using a process such as lathing, grinding, or milling. Because the second rod body 132b with a smaller thickness is provided, when the supporting portion <NUM> penetrates through the first plate body <NUM>, the second end portion 132d of the second rod body 132b is capable of not exceeding the bottom surface of the first plate body <NUM>, thereby avoiding interfering with the battery <NUM>, which is conductive to lightening and thinning of the entire electronic device. In this embodiment of this application, the main body portion <NUM> and the first rod body 132a are each in a shape of a cylinder; and the second rod body 132b may be in a shape of a cylinder, an elliptical column, or a special-shaped column.

The second rod body 132b can thin the supporting portion <NUM> by using compute numerical control (CNC). An upper surface and a lower surface of the thinned second rod body 132b each have a planar structure. After the balance bar <NUM> is installed on the support <NUM> and the baseplate <NUM>, the second end portion 132d of the second rod body 132b is not lower than a height of the bottom surface of the first plate body <NUM>, which can prevent the balance bar <NUM> from interfering with the battery <NUM>.

The first rod body 132a has a length of L1, the second rod body 132b has a length of L2, and a ratio of L2 to L1 can be as large as possible. In this case, the step region <NUM> between the first plate body <NUM> and the second plate body <NUM> may be closer to the second plate body <NUM>, so that a width of the first plate body <NUM> can be as large as possible. Therefore, larger space is provided to accommodate the battery <NUM>, and a capacity of the battery <NUM> can be increased, thereby increasing a standby time of the entire electronic device.

<FIG> is a partial enlarged view of a second structure of the balance bar shown in <FIG>. As shown in <FIG>, the supporting portion <NUM> includes a first rod body 132a and a second rod body 132b. The second rod body 132b can reduce a thickness of part of the supporting portion <NUM> by forging and pressing the supporting portion <NUM>. In this case, an upper surface or a lower surface of the second rod body 132b has a planar structure (in <FIG>, only the upper surface of the second rod body 132b has a planar structure). Therefore, after the balance bar <NUM> is installed on the support <NUM> and the baseplate <NUM>, a second end portion 132d of the second rod body 132b is not lower than the height of the bottom surface of the first plate body <NUM>, which can prevent the balance bar <NUM> from interfering with the battery <NUM>.

That the upper surface and/or the lower surface has a planar structure is only used as an example for description, and the specific shape of the upper surface and/or the lower surface is not limited, as long as a distance between the upper surface and the lower surface is smaller than a diameter of the first rod body 132a. Examples are not provided herein for description.

<FIG> is a partial enlarged view of a third structure of the balance bar shown in <FIG>. As shown in <FIG>, the supporting portion <NUM> includes a first rod body 132a and a second rod body 132b. The second rod body 132b can reduce a thickness of part of the supporting portion <NUM> by forging and pressing the supporting portion <NUM>. In this case, an upper surface and a lower surface of the second rod body 132b each have a planar structure, and an end face of the second rod body 132b is similar to an elliptical structure. Therefore, after the balance bar <NUM> is installed on the support <NUM> and the baseplate <NUM>, a second end portion 132d of the second rod body 132b is not lower than the height of the bottom surface of the first plate body <NUM>, which can prevent the balance bar <NUM> from interfering with the battery <NUM>.

<FIG> is a partial enlarged view of a fourth structure of the balance bar shown in <FIG>. As shown in <FIG>, the supporting portion <NUM> includes a first rod body 132a and a second rod body 132b. The second rod body 132b with a diameter smaller than that of the first rod body 132a is obtained by lathing, milling, or performing another machining method on the supporting portion <NUM>. In this case, the first rod body 132a and the second rod body 132b are each in a shape of a cylinder. After the balance bar <NUM> is installed on the support <NUM> and the baseplate <NUM>, a second end portion 132d of the second rod body 132b is not lower than the height of the bottom surface of the first plate body <NUM>, which can prevent the balance bar <NUM> from interfering with the battery <NUM>.

<FIG> is a schematic diagram of a structure of an assembled touchpad assembly according to an embodiment of this application. As shown in <FIG>, the baseplate <NUM> is clamped with the support <NUM>.

<FIG> is a partial enlarged view of the touchpad assembly shown in <FIG>. As shown in <FIG>, the baseplate <NUM> includes a clamping portion 112b, and a mounting portion 132e is located on the second rod body 132b and can match the clamping portion 112b to implement rotation of the supporting portion <NUM>.

Specifically, the baseplate <NUM> is provided with a through-hole <NUM>, and the through-hole <NUM> runs through the first plate body <NUM>, the second plate body <NUM>, and the step region <NUM>. The second plate body <NUM> includes an extension plate 112a, the extension plate 112a is accommodated in the through-hole <NUM>, and the clamping portion 112b is arranged on the extension plate 112a. The arrangement of the extension plate 112a can facilitate the arrangement of the clamping portion 112b, and the arrangement of the through-hole <NUM> can reduce the entire weight of the touchpad assembly.

The extension plate 112a may be integrally formed with the second plate body <NUM>, the clamping portion 112b has a surface matching the second rod body 132b, and a fulcrum (that is, the mounting portion 132e) of the supporting portion <NUM> can be formed on the surface. The second rod body 132b obtained by using different machining methods has different shapes, as long as the shape of the clamping portion 112b can be adapted to the second rod body 132b, which is not specifically limited herein.

The clamping portion 112b may further have a notch, and a shape of the notch can match the mounting portion 132e to enable the clamping portion and the mounting portion to be clamped.

<FIG> is a schematic diagram of a structure of a support in a touchpad assembly according to an embodiment of this application. As shown in <FIG>, the support <NUM> includes a clamping groove <NUM>, and the main body portion <NUM> is clamped in the clamping groove <NUM>. There are many ways to connect the supporting portion <NUM> to the support <NUM>. In a specific implementation, when the touchpad assembly <NUM> is pressed, the main body portion <NUM> can rotate in the clamping groove <NUM>, thereby enabling the supporting portion <NUM> to rotate, and enabling the mounting portion 132e to match the clamping portion 112b, so that the entire touchpad assembly <NUM> provides good hand feeling when moving downward. <FIG> is a partial enlarged view of the support shown in <FIG>. As shown in <FIG>, a groove formed in the support <NUM> is a clamping groove <NUM>, which is used to clamp the main body portion <NUM>.

<FIG> is an exploded view of a touchpad assembly according to another embodiment of this application. In a specific implementation, as shown in <FIG>, one of the baseplate <NUM> and the support <NUM> is provided with a clamping hole <NUM>, the other is provided with a clamping block <NUM> (referring to <FIG>), and the clamping hole <NUM> is clamped and matched with the clamping block <NUM>, so that limiting matching between the baseplate <NUM> and the support <NUM> is implemented, or the two can be combined through bonding by using adhesive. In this embodiment, the clamping block <NUM> is arranged on the support <NUM>, and the clamping hole <NUM> is provided in the baseplate <NUM>.

The touchpad assembly <NUM> may further include a circuit board <NUM>, where the circuit board <NUM> is connected to a side of the support <NUM> away from the baseplate <NUM>. A switch <NUM> may be disposed on the circuit board <NUM>, and the switch <NUM> can be attached to a surface of the circuit board <NUM>. When the touchpad assembly <NUM> is pressed, the touchpad assembly <NUM> can rotate slightly, which triggers operation of the switch <NUM>, to implement an input function of the keyboard <NUM> or a click function of a mouse.

As mentioned above, the touchpad assembly <NUM> according to this embodiment of this application may further include a touchpad <NUM>, where the touchpad <NUM> is disposed on a side of the circuit board <NUM> away from the support <NUM>, thereby forming the touchpad assembly <NUM> shown in <FIG>.

Based on the touchpad assembly <NUM> according to the embodiment of this application, an embodiment of this application further provides an electronic device <NUM>, where the electronic device <NUM> includes a display terminal <NUM> and a system terminal <NUM>, and the system terminal <NUM> includes a keyboard <NUM> and the touchpad assembly <NUM>. The touchpad assembly <NUM> is the touchpad assembly <NUM> according to any embodiment of this application. The electronic device <NUM> further includes a battery <NUM>. An end of the battery <NUM> is located on a side edge of a first plate body <NUM> (the side edge connected to a step region <NUM>), and the battery <NUM> is located between the first plate body <NUM> and a lower housing.

In conclusion, in the touchpad assembly and the electronic device according to the embodiments of this application, the position of the battery <NUM> is staggered from that of the second plate body <NUM>, and the second end portion 132d of the supporting portion <NUM> of the balance bar <NUM> does not exceed the bottom surface of the first plate body <NUM> in the thickness direction (H) of the touchpad assembly <NUM>. In this way, the battery <NUM> does not interfere with the second end portion 132d of the supporting portion <NUM>, so that the touchpad assembly <NUM> is lighter and thinner, thereby making the entire electronic device <NUM> lighter and thinner.

Claim 1:
A touchpad assembly (<NUM>) used for an electronic device (<NUM>), comprising:
a baseplate (<NUM>), wherein the baseplate (<NUM>) comprises a first plate body (<NUM>) and a second plate body (<NUM>), the first plate body (<NUM>) is higher than the second plate body (<NUM>) in a thickness direction (H) of the touchpad assembly (<NUM>), and the first plate body (<NUM>) is configured to match a battery (<NUM>) of the electronic device (<NUM>);
a support (<NUM>) disposed above the baseplate (<NUM>) in the thickness direction (H) of the touchpad assembly (<NUM>); and
a balance bar (<NUM>), wherein the balance bar (<NUM>) is supported between the support (<NUM>) and the baseplate (<NUM>), and is capable of rotating around a set fulcrum of the baseplate (<NUM>), wherein
the balance bar (<NUM>) comprises a main body portion (<NUM>) and supporting portions (<NUM>) connected to two ends of the main body portion (<NUM>), at least part of the supporting portion (<NUM>) is located on the first plate body (<NUM>), and in the thickness direction (H) of the touchpad assembly (<NUM>), an end of the supporting portion (<NUM>) away from the main body portion (<NUM>) does not exceed a bottom surface of the first plate body (<NUM>) so as to allow a position of the battery (<NUM>) to be staggered from the second plate body (<NUM>);
wherein the touchpad assembly (<NUM>) further comprises a circuit board (<NUM>), wherein the circuit board (<NUM>) is connected to a side of the support (<NUM>) away from the baseplate (<NUM>); and
wherein the touchpad assembly (<NUM>) further comprises a touchpad (<NUM>), wherein the touchpad (<NUM>) is connected to a side of the circuit board (<NUM>) away from the support (<NUM>).