Patent Description:
This application relates to the field of storage device technologies, and in particular, to a chassis and a storage device.

As data grows in amount, a user has a higher requirement for a storage capability of a storage device. In the storage device, a storage capacity is a key factor that affects the storage capability of the storage device. Simply speaking, a chassis of a conventional storage device includes a chassis body and hard disks installed in the chassis body. A capacity of a single hard disk and a quantity of hard disks determine the storage capacity of the storage device. With an increase in the quantity of hard disks, the industry also has a higher requirement for how to improve a design of the chassis. <CIT> describes that computing components are housed in a chassis interacts with a bidirectional slide rail system. The bidirectional slide rail system allows the computing components to be maneuvered in two directions. They may be pulled out about halfway to the front of the cabinet and/or pulled out halfway out of the back of the cabinet. <CIT> describes a <NUM>-node distributed high-density storage system with a fan module and case. The fan module is mounted in the middle of the case. A back plate system is further mounted on the inner side of the case at the bottom of the fan module; wherein the fan module is arranged in the case, nodes are arranged in the case on two sides of the fan module. The nodes are clamped on the backboard system, a power supply exchange module is arranged at the bottom of each node, power supply boards are arranged on two sides of each node, and the nodes, the fan module and the power supply exchange modules are respectively and electrically connected with the backboard system.

This application provides a chassis and a storage device that have relatively proper layouts.

According to a first aspect, this application provides a chassis, configured to accommodate, support, or fasten electronic components. Specifically, the chassis includes a chassis body and an installation frame located in the chassis body. An electronic component may be fastened on the installation frame. When the installation frame is located in the chassis body, the chassis body can provide a protection function or a confined space for the installation frame and the electronic component fastened on the installation frame. For ease of maintenance, in the chassis provided in this application, the chassis body has a channel that passes through a first end and a second end that are of the chassis body, and the installation frame is slidably disposed in the channel of the chassis body. The installation frame has a first part facing the first end of the chassis body and a second part facing the second end of the chassis body; and the first part is capable of sliding out from the first end of the chassis body, and the second part is capable of sliding out from the second end of the chassis body. When the installation frame slides out from the first end of the chassis body (or a first end of the channel), the first part is exposed outside the chassis body, so that a worker maintains an electronic component installed in the first part. When the installation frame slides out from the second end of the chassis body (or a second end of the channel), the second part is exposed outside the chassis body, so that the worker maintains an electronic component installed in the second part. A pull-out length of the installation frame can be effectively reduced by using the foregoing arrangement manner. After the installation frame is pulled out, a relatively large torque is not generated for a pulling structure between the installation frame and the chassis body. This helps reduce manufacturing or purchase costs of the pulling structure and improve market competitiveness of the chassis body. In addition, in an actual application, because a pull-out maximum length of the installation frame is effectively shortened, when a plurality of chassis bodies are placed in an application site, for example, an equipment room, in a centralized manner, a distance between the chassis bodies can be effectively shortened. This helps increase space utilization of the application site, for example, the equipment room, and improve an operation space of an operator.

For ease of installation and heat dissipation of the electronic components, a first accommodation space, a fan compartment, and a second accommodation space are disposed in the installation frame, and the first accommodation space, the fan compartment, and the second accommodation space are successively disposed along a direction from the first end of the channel to the second end of the channel. If a heat dissipation fan is installed in the fan compartment, heat of the electronic components in the first accommodation space and the second accommodation space may be dissipated separately. Especially, when some areas of the fan compartment slide out of the chassis body, as long as one air port of the fan compartment is located in the chassis body, the heat dissipation fan may perform heat dissipation on electronic components located in the chassis body. Therefore, a heat dissipation effect of the chassis body is relatively good.

In a specific technical solution, the first part is the first accommodation space, and the second part is the second accommodation space. In this case, the operator may separately maintain the electronic components that are in the first accommodation space and the second accommodation space at the two ends of the chassis body.

In some implementations, a length of the first accommodation space and a length of the second accommodation space may be diversified. For example, the length of the first accommodation space may be the same as the length of the second accommodation space. Alternatively, the first accommodation space and the second accommodation space may be symmetrically disposed with respect to the fan compartment. In some other implementations, the length of the first accommodation space may alternatively be greater than or less than the length of the second accommodation space. When the first accommodation space and the second accommodation space are symmetrically distributed on two sides of the fan compartment, when the installation frame is pulled out from the chassis body, sizes of parts respectively pulled out from the first end and the second end are relatively close, and are close to half of a length of the entire installation frame along a slide direction. This helps fully reduce a torque generated when the installation frame slides out and force of the pulling structure between the installation frame and the chassis body.

To improve a heat dissipation effect of the chassis, a limiting assembly is further disposed between the installation frame and the chassis body. When the limiting assembly enables the first part or the second part of the installation frame to slide out of the chassis body, it can be ensured that at least one air port of the fan compartment is located in the chassis body. In this case, even if a part of the installation frame slides out of the chassis body, the other part may still be dissipated by the heat dissipation fan, so that the chassis has a relatively good heat dissipation effect, and life spans of the electronic components in the chassis are increased.

When a pulling connection between the installation frame and the chassis body is implemented, the installation frame and the chassis body may be connected by using a guide rail. Because a torque generated after the installation frame slides out of the chassis body is relatively small in the technical solution of this application, the sliding connection may be implemented by using the guide rail. A mechanism of the guide rail is relatively simple, installation and maintenance processes are relatively simple, and costs are relatively low.

In addition, in some implementations, an additional accommodation space may be further disposed in the chassis. For example, in an implementation provided in this application, an auxiliary accommodation space is further disposed. The auxiliary accommodation space is disposed between the installation frame and a bottom plate of the chassis body, to improve layout rationality of a structure in the chassis and increase space utilization in the chassis.

In addition, in a specific implementation, there may be various types of channels. For example, the channel may be a straight channel. To be specific, the installation frame can slide along a straight path in the channel. In addition, the channel may alternatively be an arc channel. To be specific, the installation frame can slide along an arc path in the channel.

According to a second aspect, this application further provides a storage device, including the chassis in any one of the foregoing technical solutions. Hard disks are disposed in the first accommodation space and the second accommodation space that are of the installation frame, and a heat dissipation fan is disposed in the fan compartment. The heat dissipation fan may dissipate heat for the hard disks in the first accommodation space and the second accommodation space, and the first accommodation space is capable of sliding out from the first end of the chassis body, to maintain the hard disks and another component in the first accommodation space. The second accommodation space is capable of sliding out from the second end of the chassis body, to maintain the hard disks and another component in the second accommodation space. In this technical solution, the installation frame is capable of sliding out of the installation frame from the two ends of the chassis body, so that a torque generated after the installation frame slides out is relatively small, and a gravity center offset of the storage device is relatively small. This can improve stability of the storage device. In addition, the installation frame occupies a relatively small channel in the equipment room after sliding out. This improves layout density of storage devices in the equipment room and increases space utilization of the equipment room. In addition, this is convenient for the operator to have a sufficient operation space when maintaining the hard disks in the installation frame.

The chassis is further provided with the auxiliary accommodation space, and the auxiliary accommodation space is disposed between the installation frame and the bottom plate of the chassis body. A circuit board assembly is disposed in the auxiliary accommodation space, and the circuit board assembly may include a control board, a power module, and a baseband processing unit, to improve layout rationality of the structure in the chassis and increase space utilization in the chassis. In addition, cables connecting the circuit board assembly and the hard disks may be located below the installation frame, and are relatively short in length. Therefore, no additional cable management arm needs to be disposed to reduce space occupied by the cables.

The foregoing circuit board assembly is electrically connected to the hard disks through the cables, and the cables are installed on a tank chain coiling mechanism, to protect the cables and prevent the cables from scratching another structure. Specifically, one end of the foregoing tank chain coiling mechanism is fixedly connected to the installation frame, and the other end of the tank chain coiling mechanism is fixedly connected to the chassis body.

To make objectives, technical solutions, and advantages of this application clearer, the following further describes this application in detail with reference to accompanying drawings.

To facilitate understanding of a chassis provided in embodiments of this application, the following first describes an application scenario of the chassis.

The chassis provided in the embodiments of this application may be used in a plurality of types of storage devices, and is configured to accommodate, support, or fasten electrical components in the storage devices. Specifically, a chassis may include hard disks (which may be storage components such as a hard disk drive or a solid-state drive), a circuit board assembly, and a heat dissipation fan. The hard disks, the circuit board assembly, and the heat dissipation fan may be installed in the chassis, and the chassis may protect and support the hard disks, the circuit board assembly, and the heat dissipation fan, to improve security of the storage device. In addition, the hard disks, the circuit board assembly, and the heat dissipation fan may be assembled into the chassis to improve integration of the storage device and form modules, to facilitate installation, arrangement, and other operations on a construction site. In a specific implementation, the hard disk is configured to store data to implement a storage function of the storage device. The circuit board assembly is electrically connected to the hard disks to implement functions such as power supply, data distribution, and data reading for the hard disks. The heat dissipation fan can generate cooling airflow to dissipate heat for the hard disks and the circuit board assembly, so as to ensure normal running of the storage device.

In some implementations of the conventional technology, the chassis may include a chassis body and an installation frame located in the chassis body. The installation frame is fixedly disposed in the chassis body, and the chassis body is drawably installed in the storage device. The hard disks, the circuit board assembly, and the heat dissipation fan may be disposed in the installation frame. When the hard disk needs to be maintained, the entire chassis needs to be pulled out from one side of the storage device for an operation. In a conventional storage device, hard disks may be disposed at a front end (or a pulling end) of a chassis, a circuit board assembly may be disposed at a rear end (an end far away from the pulling end) of the chassis, and a heat dissipation fan may be disposed between the hard disks and the circuit board assembly. Under action of the heat dissipation fan, cooling airflow may enter from a front end of the installation frame and be discharged from a rear end of the installation frame. In actual use, after the chassis body is pulled out from the storage device, a cantilever structure is formed between the chassis body and the storage device. Therefore, if a pull-out length of the installation frame is extremely long or there are a large quantity of hard disks in the installation frame, there is a high risk of toppling when the installation frame is extremely heavy. In addition, after the chassis body is pulled out, a pulling structure (for example, a holding rail) between the chassis body and the storage device bears a large torque, and risks such as bending and deformation are likely to occur. In addition, if a pulling structure with higher stress strength is used, purchase (or manufacturing) costs significantly increase, and market competitiveness of the chassis is reduced. <FIG> is a layout diagram of storage devices in an equipment room. Referring to <FIG>, in an actual application, storage devices <NUM> are arranged in columns in the equipment room, and a channel <NUM> may be formed between two columns of storage devices <NUM>, to facilitate worker walking. However, during maintenance, after a chassis body is entirely pulled out from the storage device <NUM>, a pull-out length of the chassis body needs to be not greater than a width of the channel <NUM>. Therefore, a minimum width of the channel <NUM> usually depends on a maximum pull-out length of an installation frame <NUM>. This is not conducive to implementing minimum configuration of the channel <NUM> and increasing space utilization of the equipment room. When the channel <NUM> is relatively narrow, space is small. This is not conducive to maintaining the chassis body by an operator.

Based on the foregoing problems existing in the conventional storage device, the embodiments of this application provide a chassis and a storage device that can reduce a pull-out length of an installation frame <NUM>.

To clearly understand the technical solutions of this application, the following describes in detail the chassis provided in this application with reference to specific embodiments and the accompanying drawings.

Terms used in the following embodiments are merely intended to describe specific embodiments, but are not intended to limit this application. Terms "one", "a", "the", "the foregoing", "this", and "the one" of singular forms used in this specification and the appended claims of this application are also intended to include plural forms like "one or more", unless otherwise specified in the context clearly. It should be further understood that, in the following embodiments of this application, "at least one" or "one or more" means one, two, or more.

Reference to "an embodiment", "some embodiments", or the like described in this specification indicates that one or more embodiments of this application include a specific feature, structure, or characteristic described with reference to the embodiments. Therefore, in this specification, statements, such as "in an embodiment", "in some embodiments", "in some other embodiments", and "in other embodiments", that appear at different places do not necessarily mean referring to a same embodiment. Instead, the statements mean referring to "one or more but not all of the embodiments", unless otherwise specifically emphasized in other ways. The terms "include", "comprise", "have", and variants of the terms all mean "include but are not limited to", unless otherwise specifically emphasized in other ways.

<FIG> is a schematic structural diagram of the storage device <NUM> according to an embodiment of this application. As shown in <FIG>, in an embodiment provided in this application, the storage device <NUM> includes a cabinet <NUM> and a chassis <NUM> installed in the cabinet <NUM>, and electronic components are installed in the chassis <NUM> to implement a function of the storage device <NUM>. In addition, if the chassis <NUM> is installed in the cabinet <NUM>, the cabinet <NUM> may provide protection for the chassis <NUM> and the electronic components <NUM> in the chassis <NUM>. In another implementation, the storage device <NUM> may not include the cabinet <NUM>. This is not limited in the present invention.

<FIG> is a schematic diagram of a partial structure of the chassis according to an embodiment of this application. As shown in <FIG>, the chassis <NUM> includes a chassis body <NUM> and an installation frame <NUM> located in the chassis body <NUM>. To describe a structure of the installation frame <NUM> in the chassis <NUM>, a top cover plate is omitted in the chassis body <NUM> of the chassis <NUM> in <FIG>. It can be seen that the installation frame <NUM> includes a first accommodation space <NUM> and a second accommodation space <NUM>. The first accommodation space <NUM> and the second accommodation space <NUM> may be used to accommodate hard disks or other electronic components. The installation frame <NUM> is disposed in the chassis body <NUM> in a bi-directional pulling manner. <FIG> is a schematic structural diagram of the chassis body according to an embodiment of this application. In a specific embodiment, the chassis body <NUM> has a channel that passes through a first end <NUM> and a second end <NUM> that are of the chassis body <NUM>, and the installation frame <NUM> is slidably installed in the channel. <FIG> is a schematic diagram of a status of the chassis according to an embodiment of this application. <FIG> is a schematic diagram of another status of the chassis according to an embodiment of this application. A first part that is of the installation frame <NUM> and that is close to the first end <NUM> is capable of sliding out from the first end <NUM> of the chassis body <NUM>, as shown in <FIG>. A second part that is of the installation frame <NUM> and that is close to the second end <NUM> is capable of sliding out from the second end <NUM> of the chassis body <NUM>, as shown in <FIG>. An example in which the chassis <NUM> is in a used state is used. It is considered that a front end of the chassis body <NUM> is the first end <NUM>, and a rear end of the chassis body <NUM> is the second end <NUM>. In this case, the installation frame <NUM> pulls out the first part from the front end of the chassis body <NUM>, and pulls out the second part from the rear end of the chassis body <NUM>. Therefore, components such as hard disks that are in the first part and the second part of the installation frame <NUM> may be respectively maintained. A pull-out length of the installation frame <NUM> can be effectively reduced by using the foregoing arrangement manner. Specifically, if a length of the first part is L1 and a length of the second part is L2, a total length of the installation frame is L3, where both L1 and L2 are less than L3. If the chassis <NUM> uses the foregoing bi-directional pulling manner, a pull-out maximum length of the installation frame <NUM> may be not greater than any one of L1 and L2, and is less than L3. Therefore, after the installation frame <NUM> is pulled out, a relatively large torque is not generated for a pulling structure between the installation frame <NUM> and the chassis body <NUM>. This helps reduce manufacturing or purchase costs of the pulling structure and improve market competitiveness of the chassis body <NUM>. In this way, more electronic components can be installed in the installation frame. In addition, in an actual application, because the pull-out maximum length of the installation frame <NUM> is effectively shortened, when a plurality of chassis bodies <NUM> are placed in an application site, for example, an equipment room, in a centralized manner, a distance between two chassis bodies <NUM> that are placed oppositely (for example, front ends or rear ends of the two chassis bodies <NUM> are placed oppositely) can be effectively shortened. In this way, space utilization of the application site, for example, the equipment room, is increased, and an operation space of an operator is improved. The electronic component in this embodiment of the present invention may be hardware, a computing blade, or the like. This is not limited in this embodiment of the present invention.

It should be noted that the foregoing length is a length along a direction from the first end <NUM> of the chassis <NUM> to the second end <NUM>, namely, a length along a stretching direction of the installation frame <NUM>. Orientation words such as "front", "rear", "left", "right", and "bottom" that appear in the embodiments of this application are merely used to describe a relative relationship between directions by using an example in which the chassis <NUM> and the storage device each are in one used state.

Still referring to <FIG>, in an embodiment provided in this application, the installation frame <NUM> specifically includes the first accommodation space <NUM>, a fan compartment <NUM>, and the second accommodation space <NUM>. The first accommodation space <NUM>, the fan compartment <NUM>, and the second accommodation space <NUM> are successively disposed along the direction from the first end <NUM> of the chassis body <NUM> to the second end <NUM> of the chassis body <NUM>. The first accommodation space <NUM> and the second accommodation space <NUM> each may accommodate the hard disks, and the fan compartment <NUM> may accommodate a heat dissipation fan (not shown in the figure). When the installation frame <NUM> is entirely located in the chassis body <NUM>, airflow generated by the heat dissipation fan may enter the chassis body <NUM> from the front end of the chassis body <NUM> (or the first accommodation space <NUM>), and be discharged from the rear end of the chassis body <NUM> (or the second accommodation space <NUM>). Alternatively, the airflow generated by the heat dissipation fan may enter the rear end of the chassis body <NUM> (or the second accommodation space <NUM>), and be discharged from the front end of the chassis body <NUM> (or the first accommodation space <NUM>), to dissipate heat for the components such as the hard disks that are in the first accommodation space <NUM> and the second accommodation space <NUM>. In this solution, the heat dissipation fan is located between the first accommodation space <NUM> and the second accommodation space <NUM>. This helps improve a heat dissipation effect of the chassis <NUM>.

In some embodiments, the first part may be the first accommodation space <NUM>, and the second part may be the second accommodation space <NUM>. After the installation frame <NUM> is pulled out from the front end, the first accommodation space <NUM> is exposed outside the chassis body <NUM>, so that a worker can perform work such as maintenance on the components such as the hard disks accommodated in the first accommodation space <NUM>. After the installation frame <NUM> is pulled out from the rear end of the chassis body <NUM>, the second accommodation space <NUM> is exposed outside the chassis body <NUM>, so that the worker can perform work such as maintenance on the components such as the hard disks accommodated in the second accommodation space <NUM>.

In a specific embodiment, not only the first accommodation space <NUM> or the second accommodation space <NUM> may slide out of the chassis body <NUM>. For example, the first accommodation space <NUM> and the fan compartment <NUM> may slide out of the first end <NUM> of the chassis body <NUM> together, and the second accommodation space <NUM> and the fan compartment <NUM> may slide out of the second end <NUM> of the chassis body <NUM> together. In this case, the first part is the first accommodation space <NUM> and the fan compartment <NUM>, and the second part is the second accommodation space <NUM> and the fan compartment <NUM>. Alternatively, a part of the first accommodation space <NUM> may slide out of the first end <NUM> of the chassis body <NUM>, and a part of the second accommodation space <NUM> may slide out of the second end <NUM> of the chassis body. In this case, the first part is the part of the first accommodation space <NUM>, and the second part is the part of the second accommodation space <NUM>.

In a specific implementation, along the stretching direction of the installation frame <NUM>, a length of the first accommodation space <NUM> may be the same as or different from a length of the second accommodation space <NUM>. For example, in an embodiment provided in this application, as shown in <FIG>, along the stretching direction of the installation frame <NUM>, the length of the first accommodation space <NUM> is the same as or approximately the same as the length of the second accommodation space <NUM>. Specifically, the first accommodation space <NUM> and the second accommodation space <NUM> may be symmetrically disposed with respect to the fan compartment <NUM>, so that stretching lengths of the installation frame <NUM> from the two ends of the chassis body <NUM> are relatively close, and a stretching length of the installation frame <NUM> is controlled to be relatively short.

In some implementations, an accommodation space for accommodating some electronic components may be further disposed between the installation frame <NUM> and an inner wall of the chassis body <NUM>. For example, in an embodiment provided in this application, an auxiliary accommodation space <NUM> is disposed between the installation frame <NUM> and the inner wall of the chassis body <NUM>. A storage device is used as an example. In a specific application, a circuit board assembly <NUM> may be disposed in the auxiliary accommodation space <NUM>. The circuit board assembly <NUM> may be fastened on a periphery of the installation frame <NUM>, or may be fastened on the inner wall of the chassis body <NUM>. Alternatively, some components in the circuit board assembly <NUM> may be fastened on the periphery of the installation frame <NUM>, and the other components may be fastened on the inner wall of the chassis body <NUM>.

In a specific implementation, a disposition position of the auxiliary accommodation space <NUM> may be properly selected based on shapes of the chassis body <NUM> and the installation frame <NUM>, a disposition position of the pulling structure, and the like.

For example, as shown in <FIG>, in an embodiment provided in this application, the chassis body <NUM> may be a rectangular housing structure in which front and rear ends are connected, and the installation frame <NUM> may be a rectangular cube frame structure. A left side of the installation frame <NUM> is connected to a left side wall of the chassis body <NUM> by using a pulling structure, and a right side of the installation frame <NUM> is connected to a right side wall of the chassis body <NUM> by using a pulling structure. The installation frame <NUM> may be pulled out from the front end of the chassis body <NUM>, or may be pulled out from the rear end of the chassis body <NUM>. The first accommodation space <NUM>, the fan compartment <NUM>, and the second accommodation space <NUM> are successively arranged from the front end of the installation frame <NUM> to the rear end of the installation frame <NUM>. As shown in <FIG>, the auxiliary accommodation space <NUM> is disposed in a gap between a lower side of the installation frame <NUM> and a bottom plate <NUM> of the chassis body <NUM>, so that space utilization of the chassis <NUM> can be increased, and layout rationality of the chassis <NUM> can be improved. In some other implementations, shapes of the chassis body <NUM> and the installation frame are not limited to the foregoing rectangular structures. For example, the chassis body <NUM> may alternatively be a pillar structure whose cross section is a circle, a triangle, or another polygon. The chassis body <NUM> may be a cube structure in a spherical shape, a trapezoid shape, or the like. In addition, structures of channels formed in the chassis body <NUM> may also be diversified. For example, the channel may be a straight channel, or may be an arc channel. This is not specifically limited in this application.

In a specific embodiment, as shown in <FIG> and <FIG>, the foregoing pulling structure may be a guide rail <NUM>. In other words, the installation frame <NUM> is connected to the chassis body <NUM> by using the guide rail <NUM>. In the conventional technology, if the entire chassis <NUM> is pulled out from the storage device, the chassis body <NUM> is connected to the storage device by using a holding rail, to improve strength of a connection between the chassis body <NUM> and the storage device. When the entire chassis body <NUM> is pulled out of the storage device, a relatively good bearing capacity can be provided. In this embodiment of this application, a pulling action is performed only on the installation frame <NUM>, and a pulling stroke is relatively short. Therefore, a requirement for the pulling structure is relatively low. Therefore, in this application, the guide rail <NUM> is used as a pulling structure. Compared with a structure of the holding rail, the guide rail <NUM> has a simpler structure, lower costs, and simpler installation and maintenance processes. Certainly, the chassis in the present invention does not exclude such a holding rail connection structure.

To improve the heat dissipation effect of the chassis <NUM> and prevent a misoperation of the operator, in a specific embodiment of this application, a limiting assembly located between the installation frame <NUM> and the chassis body <NUM> is further included. When the installation frame <NUM> is pulled to the front end of the chassis <NUM>, the first part slides out of the chassis body <NUM>, and the limiting assembly enables at least one air port of the fan compartment <NUM> to be located in the chassis body <NUM>, as shown in <FIG>. When the installation frame <NUM> is pulled to the rear end of the chassis <NUM>, the second part slides out of the chassis body <NUM>, and the limiting assembly enables at least one air port of the fan compartment <NUM> to be located in the chassis body <NUM>, as shown in <FIG>. In this solution, the limiting assembly enables the at least one air port of the installation frame <NUM> to be located in the chassis body <NUM> when the installation frame <NUM> is pulled out, so that a heat dissipation effect of a component in the chassis body <NUM> can be ensured, to avoid a case in which the component in the chassis body <NUM> is overheated. In addition, when the limiting assembly enables the installation frame <NUM> to be pulled out, the installation frame <NUM> does not excessively extend from one side, thereby preventing a center of gravity of the storage device from deviating and avoiding a risk of toppling. This can prevent the operator from the misoperation.

In another implementation, optionally, the first accommodation space <NUM> may slide out from one end of the chassis <NUM>, and the fan compartment <NUM> is still located in the chassis <NUM> after the first accommodation space <NUM> slides out from the chassis <NUM>. The second accommodation space <NUM> may slide out from the other end <NUM> of the chassis <NUM>, and the fan compartment <NUM> is still located in the chassis <NUM> after the second accommodation space <NUM> slides out from the chassis <NUM>. This ensures heat dissipation of the chassis.

In a specific embodiment, a specific structure of the limiting assembly is not limited. The following uses an example for description. <FIG> is a schematic structural diagram of an outer wall of the installation frame <NUM> and the inner wall of the chassis body <NUM> according to an embodiment of this application. Referring to <FIG>, the limiting assembly includes a first limiting protrusion <NUM> located on a side wall of the installation frame <NUM>, and two second limiting protrusions <NUM> located on the inner wall of the chassis body <NUM>. The two second limiting protrusions <NUM> are respectively located at the two ends of the chassis body <NUM> and are close to openings, and the first limiting protrusion <NUM> is opposite to the fan compartment <NUM>. When the first limiting protrusion <NUM> adapts to the second limiting protrusion <NUM>, and the first limiting protrusion <NUM> abuts against the second limiting protrusion <NUM>, the installation frame <NUM> cannot continue to be pulled, and the at least one air port of the fan compartment <NUM> is located in the chassis body <NUM>. Alternatively, in other embodiments, another limiting structure may be used. In addition, the limiting structure may be alternatively installed on the guide rail <NUM>. An installation position of the limiting structure is not limited in this application either.

<FIG> is a schematic structural diagram of the auxiliary accommodation space <NUM> according to an embodiment of this application. Referring to <FIG>, and <FIG>, in some embodiments, the auxiliary accommodation space <NUM> of the chassis <NUM> is disposed in the gap between the lower side of the installation frame <NUM> and the bottom plate <NUM> of the chassis body <NUM>. The circuit board assembly <NUM> may be disposed in the auxiliary accommodation space <NUM>, and the circuit board assembly <NUM> is fixedly disposed in the chassis <NUM>. To complete work of hard disks in the installation frame <NUM>, the hard disks need to be electrically connected to the circuit board assembly <NUM>. Cables between the hard disks and the circuit board assembly <NUM> is installed on a tank chain coiling mechanism <NUM>. <FIG> is a side sectional view of the chassis <NUM> according to an embodiment of this application. As shown in <FIG>, one end of the tank chain coiling mechanism <NUM> is fastened to the chassis <NUM>, and the other end of the tank chain coiling mechanism <NUM> is fastened to the installation frame <NUM>. As the installation frame <NUM> moves, the tank chain coiling mechanism <NUM> drives the cables to move. In this solution, the tank chain coiling mechanism <NUM> may protect the cables from damage, and may prevent the cables from sleeving a component of the circuit board assembly <NUM>, to prevent from damaging the circuit board assembly <NUM>. Therefore, the circuit board assembly <NUM> may also be protected. For a structure of the tank chain coiling mechanism <NUM>, refer to <FIG> is a schematic structural diagram of the tank chain coiling mechanism <NUM> according to an embodiment of this application.

In the conventional technology, the installation frame <NUM> is entirely pulled out from the front end of the chassis <NUM>, the cables between the hard disks and the circuit board assembly <NUM> are long, and the cables are entirely piled up to the rear end of the chassis <NUM> by using a cable management arm. This not only occupies much space, but also blocks the rear end of the installation frame <NUM>. In addition, a quantity of deployed cables is limited. According to the technical solutions of this application, the cables are located below the installation frame <NUM>, and as the pulling stroke of the installation frame <NUM> decreases, a length of the cable also decreases accordingly, so that a relatively large quantity of connected cables can be supported. This helps improve an integration level of components.

The following describes the technical solutions of this application by using a specific embodiment. <FIG> is a schematic structural diagram of the chassis <NUM> of a storage device. The chassis <NUM> includes the chassis body <NUM> and the installation frame <NUM>. The installation frame <NUM> includes the first accommodation space <NUM>, the fan compartment <NUM>, and the second accommodation space <NUM> that are successively disposed along the direction from the first end <NUM> of the chassis body <NUM> to the second end <NUM> of the chassis body <NUM>. Optionally, the first accommodation space <NUM> and the second accommodation space <NUM> are symmetrically disposed with respect to the fan compartment <NUM>. A plurality of hard disks are disposed in the first accommodation space <NUM>, a plurality of hard disks are disposed in the second accommodation space <NUM>, and a heat dissipation fan (not shown in the figure) is disposed in the fan compartment <NUM>. Referring to <FIG> and <FIG>, the first accommodation space <NUM> may slide out from the first end <NUM> of the chassis <NUM>, and the at least one air port of the fan compartment <NUM> is located in the chassis <NUM> after sliding out. The second accommodation space <NUM> may slide out from the second end <NUM> of the chassis <NUM>, and the at least one air port of the fan compartment <NUM> is located in the chassis <NUM> after sliding out. Optionally, the first accommodation space <NUM> may slide out from the first end <NUM> of the chassis <NUM>, and the fan compartment <NUM> is at least located in the chassis <NUM> after sliding out. The second accommodation space <NUM> may slide out from the second end <NUM> of the chassis <NUM>, and the fan compartment <NUM> is located in the chassis <NUM> after sliding out. Specifically, the first accommodation space <NUM> and the second accommodation space <NUM> each may have four rows of hard disk installation areas, and each hard disk installation area may accommodate <NUM> hard disks. However, in an actual application, a quantity of hard disks to be installed and specific installation locations may be selected based on a requirement. The hard disks may be disposed relatively evenly in the first accommodation space <NUM> and the second accommodation space <NUM>, to improve stability of the chassis <NUM>. Further, referring to <FIG> and <FIG>, the auxiliary accommodation space <NUM> is provided between the installation frame <NUM> of the chassis <NUM> and the bottom plate <NUM> of the chassis body <NUM>. A circuit board assembly <NUM> is disposed in the auxiliary accommodation space <NUM>, and the circuit board assembly <NUM> is fastened on the bottom plate <NUM> of the chassis body <NUM>. The tank chain coiling mechanism <NUM> is fixedly installed between the bottom plate of the chassis body <NUM> and the installation frame <NUM>, the one end of the tank chain coiling mechanism <NUM> is fastened on the bottom plate <NUM> of the chassis body <NUM>, and the other end of the tank chain coiling mechanism <NUM> is fastened to the installation frame <NUM>. The hard disk is connected to the circuit board assembly <NUM> through the cables, and the cables are installed on the tank chain coiling mechanism <NUM> to protect the cables and electronic components. In an implementation, the circuit board assembly in this embodiment of the present invention may include a controller, configured to execute an operation request for the hard disks.

In another embodiment, referring to <FIG> is a schematic structural diagram of the chassis <NUM> of a computing device. The chassis <NUM> includes the chassis body <NUM> and the installation frame <NUM>. The installation frame <NUM> includes the first accommodation space <NUM>, the fan compartment <NUM>, and the second accommodation space <NUM> that are successively disposed along the direction from the first end <NUM> of the chassis body <NUM> to the second end <NUM> of the chassis body <NUM>. Optionally, the first accommodation space <NUM> and the second accommodation space <NUM> are symmetrically disposed with respect to the fan compartment <NUM>. Computing blades are disposed in the first accommodation space <NUM>, computing blades are disposed in the second accommodation space <NUM>, and a heat dissipation fan (not shown in the figure) is disposed in the fan compartment <NUM>. Optionally, referring to <FIG> and <FIG>, the first accommodation space <NUM> may slide out from the first end <NUM> of the chassis <NUM>, and the at least one air port of the fan compartment <NUM> is located in the chassis <NUM> after sliding out. The second accommodation space <NUM> may slide out from the second end <NUM> of the chassis <NUM>, and the at least one air port of the fan compartment <NUM> is located in the chassis <NUM> after sliding out. Optionally, the first accommodation space <NUM> may slide out from the first end <NUM> of the chassis <NUM>, and the fan compartment <NUM> is at least located in the chassis <NUM> after sliding out. The second accommodation space <NUM> may slide out from the second end <NUM> of the chassis <NUM>, and the fan compartment <NUM> is located in the chassis <NUM> after sliding out. Specifically, the first accommodation space <NUM> and the second accommodation space <NUM> each may have four rows of computing blade installation areas, and each computing blade installation area may accommodate <NUM> computing blades. However, in an actual application, a quantity of computing blades to be installed and specific installation locations may be selected based on a requirement. The computing blades may be disposed relatively evenly in the first accommodation space <NUM> and the second accommodation space <NUM>, to improve stability of the chassis <NUM>. Referring to <FIG> and <FIG>, the auxiliary accommodation space <NUM> is provided between the installation frame <NUM> of the chassis <NUM> and the bottom plate <NUM> of the chassis body <NUM>. A circuit board assembly <NUM> is disposed in the auxiliary accommodation space <NUM>, and the circuit board assembly <NUM> is fastened on the bottom plate <NUM> of the chassis body <NUM>. The tank chain coiling mechanism <NUM> is fixedly installed between the bottom plate of the chassis body <NUM> and the installation frame <NUM>, the one end of the tank chain coiling mechanism <NUM> is fastened on the bottom plate <NUM> of the chassis body <NUM>, and the other end of the tank chain coiling mechanism <NUM> is fastened to the installation frame <NUM>. The computing blades are connected to the circuit board assembly <NUM> through the cables, and the cables are installed on the tank chain coiling mechanism <NUM> to protect the cables and electronic components.

In another embodiment, referring to <FIG> is a schematic structural diagram of the chassis <NUM> of a computing device. The chassis <NUM> includes the chassis body <NUM> and the installation frame <NUM>. The installation frame <NUM> includes the first accommodation space <NUM>, the fan compartment <NUM>, and the second accommodation space <NUM> that are successively disposed along the direction from the first end <NUM> of the chassis body <NUM> to the second end <NUM> of the chassis body <NUM>. Optionally, the first accommodation space <NUM> and the second accommodation space <NUM> are symmetrically disposed with respect to the fan compartment <NUM>. Hard disks are disposed in one of the first accommodation space <NUM> and the second accommodation space <NUM>. Computing blades are disposed in the other accommodation space, and a heat dissipation fan (not shown in the figure) is disposed in the fan compartment <NUM>. Optionally, referring to <FIG> and <FIG>, the first accommodation space <NUM> may slide out from the first end <NUM> of the chassis <NUM>, and the at least one air port of the fan compartment <NUM> is located in the chassis <NUM> after sliding out. The second accommodation space <NUM> may slide out from the second end <NUM> of the chassis <NUM>, and the at least one air port of the fan compartment <NUM> is located in the chassis <NUM> after sliding out. Optionally, the first accommodation space <NUM> may slide out from the first end <NUM> of the chassis <NUM>, and the fan compartment <NUM> is at least located in the chassis <NUM> after sliding out. The second accommodation space <NUM> may slide out from the second end <NUM> of the chassis <NUM>, and the fan compartment <NUM> is located in the chassis <NUM> after sliding out. Optionally, the hard disks and the computing blades may be evenly disposed in corresponding accommodation spaces, to improve stability of the chassis <NUM>. Referring to <FIG> and <FIG>, the auxiliary accommodation space <NUM> is provided between the installation frame <NUM> of the chassis <NUM> and the bottom plate <NUM> of the chassis body <NUM>. A circuit board assembly <NUM> is disposed in the auxiliary accommodation space <NUM>, and the circuit board assembly <NUM> is fastened on the bottom plate <NUM> of the chassis body <NUM>. The tank chain coiling mechanism <NUM> is fixedly installed between the bottom plate of the chassis body <NUM> and the installation frame <NUM>, the one end of the tank chain coiling mechanism <NUM> is fastened on the bottom plate <NUM> of the chassis body <NUM>, and the other end of the tank chain coiling mechanism <NUM> is fastened to the installation frame <NUM>. The hard disks and/or the computing blades are connected to the circuit board assembly <NUM> through the cables, and the cables are installed on the tank chain coiling mechanism <NUM> to protect the cables and electronic components.

Claim 1:
A chassis (<NUM>) for accommodating electronic components, comprising:
a chassis body (<NUM>) having a channel that passes through a first end (<NUM>) and a second end (<NUM>) that are of the chassis body (<NUM>); and
an installation frame (<NUM>), slidably disposed in the channel of the chassis body (<NUM>), wherein a first part of the installation frame (<NUM>) is configured to install an electronic component in the first part and capable of sliding out from the first end (<NUM>) of the chassis body (<NUM>) to expose the first part outside the chassis body (<NUM>), and a second part of the installation frame (<NUM>) is configured to install an electronic component in the second part and capable of sliding out from the second end (<NUM>) of the chassis body (<NUM>) to expose the second part outside the chassis body (<NUM>), wherein the installation frame (<NUM>) has a first accommodation space (<NUM>), a fan compartment (<NUM>), and a second accommodation space (<NUM>) that are successively arranged along a direction from the first end (<NUM>) of the chassis body (<NUM>) to the second end (<NUM>) of the chassis body (<NUM>), whereby a heat dissipation fan is installed in the fan compartment, and there is a limiting assembly between the installation frame (<NUM>) and the chassis body (<NUM>); and when the first part or the second part of the installation frame (<NUM>) slides out of the chassis body (<NUM>), at least one air port of the fan compartment (<NUM>) is located in the chassis (<NUM>).