Air conditioner and connecting device

Abstract

The utility model discloses an air conditioner and a connecting device, and relates to the technical field of air handling equipment.The air conditioner comprises an air conditioner body, the connecting device and an elastic piece, and the air conditioner body comprises an upper face frame and a lower face frame; the connecting device is movably arranged on the lower surface frame in a switching manner between a first position and a second position, the connecting device is connected with the upper surface frame at the first position, and the connecting device is separated from the upper surface frame at the second position; and the elastic piece is used for providing pre-tightening force for the connecting device at the first position and the second position respectively. According to the technical scheme, through the arrangement of the connecting device and the elastic piece, due to the pre-tightening force provided by the elastic piece, when the external force borne by the connecting device does not reach the preset value, the connecting device can be limited at the first position or the second position, and the connecting device is not prone to loosening in the states of transportation and the like.

Description

Technical Field

[0001] This utility model relates to the field of air handling equipment technology, and in particular to an air conditioner and a connecting device. Background Technology

[0002] In existing technologies, to facilitate after-sales maintenance, the faceplate is usually made into a separate upper frame and a lower frame, which are detachable. However, the existing connection between the upper frame and the lower frame has problems such as difficulty in disassembly and assembly or easy loosening. Utility Model Content

[0003] The main purpose of this utility model is to provide an air conditioner and a connecting device, which aims to solve the problem in the prior art that the connection between the upper frame and the lower frame is difficult to disassemble or is prone to loosening.

[0004] To achieve the above objectives, the present invention proposes an air conditioner comprising an air conditioner body, a connecting device, and an elastic element. The air conditioner body includes an upper frame and a lower frame. The connecting device is movably and switchably disposed on the lower frame in a first position and a second position. In the first position, the connecting device is connected to the upper frame, and in the second position, the connecting device is detached from the upper frame. The elastic element is used to provide preload force to the connecting device in the first and second positions, respectively.

[0005] In one embodiment, the elastic element is disposed between the connecting device and the lower frame. When the connecting device is in the first position, the elastic element is in a first compressed state so that the connecting device abuts against the upper frame; when the connecting device is in the second position, the elastic element is in a second compressed state so that the connecting device abuts against the lower frame.

[0006] In one embodiment, the connecting device includes a connector, a plug-in, and a fixing member, wherein the plug-in and the fixing member are disposed at opposite ends of the connector; the elastic member is disposed on the fixing member; the upper frame has a socket for the plug-in to be inserted into, and the lower frame has a mounting groove for the connector to be installed; in the first position, the plug-in is inserted into the socket, and the connector abuts against the upper frame; in the second position, the plug-in is disengaged from the socket, and the connector abuts against the lower frame.

[0007] In one embodiment, the fixing member includes a fixing cylinder and a first positioning post disposed on the fixing cylinder. One end of the fixing cylinder and the first positioning post are connected to the connecting member, and a fixing groove is formed between the fixing cylinder and the first positioning post. The first end of the elastic member is inserted into the fixing groove, and the elastic member is also sleeved on the first positioning post.

[0008] In one embodiment, the lower frame is further provided with a second positioning post, and the second end of the elastic member is sleeved on the second positioning post.

[0009] In one embodiment, the elastic element is a spring.

[0010] In one embodiment, the connector has a limiting protrusion, and the lower frame is provided with a limiting boss around the periphery of the mounting groove; in the first position, the connector abuts against the upper frame, and the limiting protrusion is located on a first side of the limiting boss; in the second position, the limiting protrusion is located on a second side of the limiting boss, and the limiting protrusion abuts against the limiting boss.

[0011] In one embodiment, the connector includes a connecting plate, a connecting portion, and a connecting bracket, wherein the connecting portion is connected between the connecting plate and the connecting bracket; the mounting groove extends through the lower frame, the connecting portion is disposed within the mounting groove, the lower frame has a first side and a second side opposite to each other, the connecting plate is located on the first side, and the connecting bracket is located on the second side; the limiting protrusion is disposed on the connecting bracket.

[0012] In one embodiment, the upper frame and the lower frame enclose an air outlet. The lower frame includes a first frame and a second frame extending along the length of the air outlet of the air conditioner. The connection between the first frame and the second frame is located at the air outlet. The first frame and the second frame are connected to each other and are arranged at an angle. The first frame and the upper frame enclose an installation space. The second frame is located between the first frame and the upper frame. The mounting groove is located in the second frame. The first side is the outer side of the lower frame, and the second side is the inner side of the lower frame.

[0013] In one embodiment, the connecting bracket includes a bracket body, a first frame edge, a second frame edge, and a third frame edge connected in sequence, wherein the bracket body and the second frame edge are respectively connected to the connecting portion; the first frame edge is provided with the limiting protrusion on its outer side; and / or, the third frame edge is provided with the limiting protrusion on its outer side.

[0014] In one embodiment, a guide rail is provided on the periphery of the mounting groove on the lower frame, and the guide rail extends along the length direction of the mounting groove; a mating groove adapted to the installation of the guide rail is formed between the first frame edge, the connecting part and the connecting plate, and / or a mating groove adapted to the installation of the guide rail is formed between the third frame edge, the connecting part and the connecting plate.

[0015] In one embodiment, the lower frame is provided with a limiting rib around the periphery of the mounting groove, and the guide rail is located on the side of the limiting rib closer to the mounting groove; a guide groove is formed between the guide rail and the limiting rib; the first frame edge is provided in the guide groove, and / or the third frame edge is provided in the guide groove.

[0016] In one embodiment, the limiting rib is inclined toward the guide rail; a portion of the limiting rib protrudes toward the guide rail to form the limiting boss.

[0017] In one embodiment, the connector further includes a stop, a grip, and a shield. The stop and the grip are located on the side of the connecting plate away from the connecting bracket. The plug is located on the stop, and the fastener is located on the bracket body. The shield is located on the side of the connecting plate near the fastener and is used to shield the mounting groove.

[0018] This utility model also proposes a connecting device for detachably connecting a first housing and a second housing. The first housing has a socket. The connecting device includes a connector, a fixing member, and a plug-in member. The connector is movably switched between a first position and a second position on the second housing. The fixing member is disposed on the connector and is used to install an elastic member so that the elastic member is limited between the fixing member and the second housing. The elastic member is used to provide preload force to the connector in the first position and the second position, respectively. The plug-in member is disposed on the connector and is used to be inserted into the socket in the first position so that the second housing is installed on the first housing.

[0019] The technical solution of this utility model, through the setting of a connecting device and an elastic element, ensures that the connecting device is limited to a first position or a second position when the external force on the connecting device does not reach a preset value due to the pre-tightening force provided by the elastic element. In the event of transportation or other conditions, the connecting device will not easily loosen. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure of an embodiment of the air conditioner provided by this utility model;

[0022] Figure 2This is a magnified view of the area where the top and bottom frames are connected.

[0023] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0024] Figure 4 This is a magnified view of the top and bottom frames in a disassembled state.

[0025] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;

[0026] Figure 6 This is a schematic diagram showing the connection relationship between the lower frame and the connecting device when the connecting device is in the second position.

[0027] Figure 7 for Figure 6 Another structural diagram from a different perspective;

[0028] Figure 8 for Figure 7 A magnified view of a section at point C;

[0029] Figure 9 This is a schematic diagram showing the connection relationship between the lower frame and the connecting device when the connecting device is in the first position.

[0030] Figure 10 for Figure 9 A magnified view of a section at point D;

[0031] Figure 11 A schematic diagram of the structure of an embodiment of the connecting device provided by this utility model;

[0032] Figure 12 for Figure 11 Another structural diagram from a different perspective;

[0033] Figure 13 for Figure 11 Another structural diagram from a different perspective;

[0034] Figure 14 for Figure 13 A magnified view of a section at point E in the middle.

[0035] Explanation of icon numbers:

[0036] 10. Air conditioner;

[0037] 100. Air conditioner body; 110. Top frame; 111. Socket; 120. Bottom frame; 120a. First frame; 120b. Second frame; 121. Mounting groove; 122. Second positioning post; 123. Limiting boss; 124. Guide rail; 125. Guide groove;

[0038] 200. Connecting device; 210. Connecting piece; 211. Limiting protrusion; 212. Connecting plate; 213. Connecting part; 214. Connecting bracket; 214a. Bracket body; 214b. First frame edge; 214c. Second frame edge; 214d. Third frame edge; 215. Stop part; 216. Grip part; 217. Covering part; 218. Mating groove; 220. Insertion piece; 230. Fixing piece; 231. Fixing cylinder; 232. First positioning post; 233. Fixing groove;

[0039] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0042] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0043] The air conditioner proposed in this utility model can be an integrated air conditioner, a split air conditioner, or a cabinet air conditioner. Generally speaking, cabinet air conditioners are usually split-type designs, that is, they consist of two separate parts: an indoor unit and an outdoor unit. However, integrated cabinet air conditioners also exist. Integrated air conditioners include window air conditioners and portable air conditioners; if the air conditioner is a split-type air conditioner, it consists of two separate parts: an indoor unit and an outdoor unit.

[0044] Split-type air conditioners achieve cooling or heating by circulating refrigerant between the indoor and outdoor units. The heat exchangers of the indoor and outdoor units are connected by copper pipes. Since the indoor unit needs to be lifted to create operating space and visibility when connecting the copper pipes between the indoor and outdoor units, after-sales installation usually requires two people to work together to connect the copper pipes, or special support rods or other items to support them. This is time-consuming, labor-intensive, and unreliable. To solve this problem, the front frame is usually designed with a detachable upper frame and a lower frame.

[0045] The existing top and bottom frames are fixed together as one unit by locking with pins, and the entire component is transported to the final assembly. After-sales installers can remove the bottom side frame by loosening these pins, exposing the pipe connection operation space. The existing connection method of the top and bottom frames has problems such as difficulty in disassembly and assembly or easy loosening due to unreasonable structural design.

[0046] Based on this, this utility model proposes a connecting device and an air conditioner, aiming to address the problem of difficulty in assembling or disassembling the connection between the upper and lower frames, or the issue of easy loosening. For ease of understanding and explanation, the following is attached to the specification of this utility model. Figures 1 to 14 In the diagram, the solid arrow indicates a slot or hole.

[0047] According to some embodiments of this application, please refer to Figures 1 to 10 , Figure 1 A schematic diagram of the structure of an embodiment of the air conditioner 10 provided by this utility model; Figure 2 This is a magnified view of the upper frame 110 and the lower frame 120 when they are connected. Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a magnified view of the upper frame 110 and the lower frame 120 in a disassembled state; Figure 5 for Figure 4 A magnified view of a section at point B in the middle; Figure 6 This is a schematic diagram showing the connection relationship between the lower frame 120 and the connecting device 200 when the connecting device 200 is in the second position. Figure 7 for Figure 6 Another structural diagram from a different perspective; Figure 8 for Figure 7 A magnified view of a section at point C; Figure 9This is a schematic diagram showing the connection relationship between the lower frame 120 and the connecting device 200 when the connecting device 200 is in the first position. Figure 10 for Figure 9 A magnified view of a section at point D.

[0048] The air conditioner 10 includes an air conditioner body 100, a connecting device 200, and an elastic element. The air conditioner body 100 includes an upper frame 110 and a lower frame 120. The connecting device 200 is movably and switchably disposed on the lower frame 120 in a first position and a second position. In the first position, the connecting device 200 is connected to the upper frame 110, and in the second position, the connecting device 200 is disengaged from the upper frame 110. The elastic element is used to provide pre-tightening force to the connecting device 200 in the first position and the second position, respectively.

[0049] In this embodiment, the research and development background is a split-type air conditioner. For ease of understanding, the following will take a split-type air conditioner as an example. The air conditioner body 100 refers to all the components of the air conditioner 10 that can perform basic functions. The air conditioner 10 includes an indoor unit and an outdoor unit. The heat exchangers of the indoor unit and the outdoor unit are connected by copper pipes or aluminum pipes, and the refrigerant circulates in them.

[0050] The indoor unit is primarily responsible for providing cooling or heating to the room. Its main components typically include the indoor unit casing, the first heat exchanger, the filter, and the first control unit. The indoor unit casing provides a stable frame to support key components such as the first heat exchanger, filter, and first control unit. The refrigerant absorbs heat from the room in the first heat exchanger, thus cooling the air, or it releases heat in the first heat exchanger, thus heating the air. The filter removes dust and impurities from the air, keeping it clean. The first control unit typically includes a temperature sensor, a control panel, and a remote control. The temperature sensor monitors the room temperature and transmits this information to the control system to adjust the operating status. The control panel and remote control are used to set and adjust parameters such as the air conditioner's operating mode, temperature, and fan speed.

[0051] Typically, the indoor unit housing includes a mounting plate, a chassis frame, an air outlet frame, an air guide plate, and a panel. The mounting plate, chassis, frame, air outlet frame, air guide plate, and panel form an installation space and air duct for installing other components.

[0052] Regarding the mounting plate and chassis, the mounting plate is the supporting foundation of the entire indoor unit structure. It is usually fixed to the wall or ceiling, and its function is to provide support and a fixed position for the entire indoor unit. The mounting plate usually includes multiple mounting holes, making it easy to fix the air conditioner to the wall or other installation location with screws. The structure of other parts is built on its foundation. The chassis is the frame part of the entire indoor unit, used to support and fix other components inside the air conditioner, such as the secondary heat exchanger, fan, control system, etc. The chassis is mounted on the mounting plate and is the supporting structure inside the air conditioner body. It is usually fixed to the mounting plate with screws or clips.

[0053] Regarding the front frame, it is the outer frame of the air conditioner unit, used to install and support the outer casing and front panel of the air conditioner. The front frame determines the overall appearance. Taking the wall-mounted air conditioner 10 as an example, the front frame is installed on the chassis and fixed to the periphery of the entire air conditioner unit. The front frame is installed at the front (external) of the chassis and is generally connected to the chassis by clips or screws to form a stable outer frame. In this embodiment, the front frame includes an upper frame 110 and a lower frame 120. During installation, the upper frame 110 is first installed on the chassis, and then the lower frame 120 is installed on the upper frame 110. In this embodiment, the lower frame 120 is detachably installed on the upper frame 110 through the connecting device 200.

[0054] Regarding the air outlet frame, air guide plate, and panel, the air outlet frame is the part where air flows out of the indoor unit. It connects the indoor unit's fan and air guide plate, controlling the airflow direction and speed. The shape and size of the air outlet frame directly affect the air conditioning's airflow performance. The air outlet frame is usually installed at the front of the chassis panel, connected to the air guide plate to ensure that the airflow is directed in a specific direction. The air guide plate, also called the duct plate, guides the direction of airflow, allowing cool or warm air to be evenly distributed throughout the room. Air guide plates are usually adjustable, allowing users to adjust the airflow direction for better comfort. They are typically installed behind the air outlet frame and their angle can be adjusted to control the airflow direction, usually via hinges or similar devices. The panel is the exterior part of the indoor unit; it is usually the front cover of the air conditioner and comes into direct contact with the user. The panel design typically prioritizes aesthetics and ease of cleaning, while also protecting internal components and preventing dust from entering. The control panel is typically equipped with a display screen, buttons, or sensors for users to operate the air conditioner; the control panel is installed at the front of the air outlet frame and air guide plate, and is the outermost component, covering the entire front of the indoor unit.

[0055] The outdoor unit is primarily responsible for releasing heat absorbed from the indoor unit to the outdoors. It typically includes a casing, compressor, secondary heat exchanger, expansion valve, and secondary control unit. The compressor is the core component, responsible for compressing the refrigerant, increasing its pressure and temperature to allow for circulation. The refrigerant releases heat at the secondary heat exchanger, becoming a liquid; alternatively, it absorbs heat at the secondary heat exchanger. The expansion valve regulates the refrigerant's flow and pressure, reducing its temperature and pressure before it enters the secondary heat exchanger. The secondary control unit controls the operation of the outdoor unit and communicates with the indoor unit.

[0056] The heat exchangers of the indoor and outdoor units are connected by copper or aluminum pipes, through which the refrigerant circulates. In cooling mode, the second heat exchanger of the indoor unit absorbs heat from the room, and the refrigerant carries the heat to the second heat exchanger of the outdoor unit for release, thereby lowering the indoor temperature. In heating mode, the cooling cycle is reversed, and the second heat exchanger of the outdoor unit absorbs heat from the outside, which is carried to the indoor unit for release via the refrigerant, thereby raising the indoor temperature.

[0057] The connecting device 200 is movably switchable between a first position and a second position on the lower frame 120. In the first position, the connecting device 200 is connected to the upper frame 110, and in the second position, the connecting device 200 is detached from the upper frame 110. Thus, the connecting device 200 can quickly switch between the first position (connected position) and the second position (detached position), allowing for convenient separation or reconnection of the air conditioner during assembly and disassembly.

[0058] Furthermore, the air conditioner 10 also includes an elastic element, which provides pre-tightening force to the connecting device 200 at the first position and the second position respectively, so that when the external force on the connecting device does not reach the preset value, the connecting device 200 can be limited to the first position or the second position, so that the connecting device 200 will not easily loosen. Compared with rigid limiting, the elastic limiting of the elastic element makes its disassembly and assembly relatively easier.

[0059] It should be understood that the elastic element can be a spring, a gas spring, or an elastic washer, etc., and the spring can be a coil spring, a bracket spring, or a tension spring, etc.; preferably, the elastic element is a spring; furthermore, the elastic element is a coil spring. In addition, there can be one, two, three, or more elastic elements.

[0060] The technical solution of this utility model, by setting a connecting device 200 and an elastic element, ensures that the connecting device 200 is limited to a first position or a second position when the external force on the connecting device 200 does not reach a preset value, and the connecting device will not easily loosen during transportation or other situations.

[0061] During installation, after the connecting device 200 and the lower frame 120 are pre-assembled, they can remain in the second position to ensure that the connecting device 200 does not interfere with the assembly process during the next sub-assembly step. When the connecting device 200 is in the second position, the upper and lower frames 120 are fixed. The preload provided by the spring continuously and forcefully presses the pin, preventing the entire frame assembly from shifting or detaching due to the pin loosening during transportation, thus preventing damage from collisions between the two frames. Furthermore, in after-sales service scenarios, when disassembling the lower frame 120, the connecting device 200's latch and the lower frame 120's limiting rib facilitate easy switching to the second position. When it is necessary to install the upper frame 110 on the lower frame 120, simply switch the connecting device 200 to the second position; the switching is easy. This improves after-sales assembly efficiency and reliability.

[0062] According to some embodiments of this utility model, refer to Figures 2 to 5 Please refer to further details. Figures 7 to 10 , Figure 2 This is a magnified view of the upper frame 110 and the lower frame 120 when they are connected. Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a magnified view of the upper frame 110 and the lower frame 120 in a disassembled state; Figure 5 for Figure 4 A magnified view of a section at point B in the middle; Figure 7 for Figure 6 Another structural diagram from a different perspective; Figure 8 for Figure 7 A magnified view of a section at point C; Figure 9 This is a schematic diagram showing the connection relationship between the lower frame 120 and the connecting device 200 when the connecting device 200 is in the first position. Figure 10 for Figure 9 A magnified view of a section at point D.

[0063] The elastic element is disposed between the connecting device 200 and the lower frame 120. When the connecting device 200 is in the first position, the elastic element is in a first compression state so that the connecting device 200 abuts against the upper frame 110. When the connecting device 200 is in the second position, the elastic element is in a second compression state so that the connecting device 200 abuts against the lower frame 120.

[0064] The elastic element can be directly installed between the connecting device 200 and the lower frame 120, or a mounting bracket can be provided on the lower frame 120 and the elastic element can be installed between the connecting device 200 and the mounting bracket. It is only necessary to ensure that the connecting device 200 can be limited to the first position or the second position when the external force on the connecting device does not reach the preset value.

[0065] In this embodiment, the compressive force of the elastic element ensures that the connecting device 200 maintains a certain contact force between the two positions, thereby reducing the probability of loosening or instability due to vibration or external force, and reducing the probability of positional displacement due to external force or vibration. The elastic element provides a certain elastic support, which can buffer the movement of the connecting device 200, reduce impact and friction, protect the structure of the connecting device 200 and the lower frame 120, and extend the service life.

[0066] In other embodiments, the elastic element may be in a stretched state in the first position, at which time the connecting device 200 abuts against the lower frame 120 (e.g., Figure 10 As shown, the limiting protrusion 211 abuts against the limiting protrusion 123 on the first side. In the second position, the elastic member is in a compressed state, so that the connecting device 200 abuts against the lower frame 120 (e.g., Figure 8 As shown, the limiting protrusion 211 abuts against the limiting protrusion 123 on the second side.

[0067] According to some embodiments of this utility model, refer to Figure 11 Please refer to further details. Figures 6 to 10 , Figure 11 A schematic diagram of a structure of an embodiment of the connecting device 200 provided by this utility model; Figure 6 This is a schematic diagram showing the connection relationship between the lower frame 120 and the connecting device 200 when the connecting device 200 is in the second position. Figure 7 for Figure 6 Another structural diagram from a different perspective; Figure 8 for Figure 7 A magnified view of a section at point C; Figure 9 This is a schematic diagram showing the connection relationship between the lower frame 120 and the connecting device 200 when the connecting device 200 is in the first position. Figure 10 for Figure 9 A magnified view of a section at point D.

[0068] In this embodiment, the connecting device 200 includes a connector 210, a plug-in member 220, and a fixing member 230. The plug-in member 220 and the fixing member 230 are disposed at opposite ends of the connector 210. The elastic member is disposed on the fixing member 230. The upper frame 110 is provided with a plug hole 111 for the plug-in member 220 to be inserted into, and the lower frame 120 is provided with a mounting groove 121 for the connector 210 to be installed. In the first position, the plug-in member 220 is inserted into the plug hole 111, and the connector 210 abuts against the upper frame 110. In the second position, the plug-in member 220 is disengaged from the plug hole 111, and the connector 210 abuts against the lower frame 120.

[0069] By providing a socket 111 in the upper frame 110 for the connector 220 to be inserted and inserted, and by providing a mounting slot 121 in the lower frame 120 for mounting the connector 200, the connector 200 can be easily inserted and removed, thus facilitating the installation of the lower frame 120. In the first position, the connector 220 is directly inserted into the socket 111 in the upper frame 110, which can quickly lock the connection position; in the second position, the connector 220 is disengaged from the socket 111, which can easily unlock the connector. Installation and removal do not require complex tools or external force, improving production efficiency and ease of maintenance.

[0070] It is understandable that the lower frame 120 generally has two oppositely arranged ends. It can be that both ends are provided with connecting devices 200, or one end is provided with a connecting device 200 and the other end is provided with a pin integrally formed with the lower frame 120. Here, the oppositely arranged ends refer to the two ends along the length direction of the lower frame 120.

[0071] For example, taking the case where connecting devices 200 are respectively provided at both ends of the lower frame 120 along its length, during installation, the connecting devices 200 are pre-installed onto the lower frame 120 (e.g., Figure 7 (as shown), and then switch the connecting devices 200 at both ends to the first position (as shown). Figure 2 and Figure 8 (As shown).

[0072] For example, taking a connecting device 200 at one end of the lower frame 120 and a pin integrally formed with the lower frame 120 at the other end as an example, during installation, the connecting device 200 is first pre-installed into the lower frame 120 (e.g., Figure 7 (As shown), then first install the end with the pin into its corresponding socket 111, and then switch the connecting device 200 to the first position (as shown). Figure 2 and Figure 8 (As shown).

[0073] According to some embodiments of this utility model, refer to Figure 11 , Figure 11 A schematic diagram of an embodiment of the connecting device 200 provided by this utility model.

[0074] The fixing member 230 includes a fixing cylinder 231 and a first positioning post 232 disposed on the fixing cylinder 231. One end of the fixing cylinder 231 and the first positioning post 232 is connected to the connecting member 210, and a fixing groove 233 is formed between the fixing cylinder 231 and the first positioning post 232. The first end of the elastic member is inserted into the fixing groove 233, and the elastic member is also sleeved on the first positioning post 232.

[0075] In this embodiment, the fixing groove 233 between the fixing cylinder 231 and the first positioning post 232 can effectively guide and fix the position of the elastic element, so that the elastic element maintains a stable compression state during operation. In this way, the elastic element can exert a relatively stable preload during operation, reducing the possibility of unstable connection due to positional deviation or deformation of the elastic element. The first end of the elastic element is connected to the fixing cylinder 231 by inserting into the fixing groove 233 and is sleeved on the first positioning post 232, which can simply and effectively fix the elastic element without the need for additional fixing devices or complex connection processes.

[0076] In other embodiments, taking a helical spring as an example, one end of the fixed cylinder 231 and the first positioning post 232 is connected to the connector 210. The end of the first positioning post 232 away from the connector 210 can be tapered, frustum, or truncated pyramid, which facilitates the installation of the elastic element.

[0077] According to some embodiments of this utility model, refer to Figures 6 to 10 The lower frame 120 is further provided with a second positioning post 122, and the second end of the elastic member is sleeved on the second positioning post 122.

[0078] In this embodiment, the second positioning post 122 provides another fixing point for the elastic element, enabling the second end of the elastic element to be stably held in the designated position. The first positioning post 232 and the second positioning post 122 make the installation, disassembly and adjustment of the elastic element more convenient. During maintenance and replacement, the presence of the second positioning post 122 provides the operator with a clear installation position, reducing damage caused by incorrect installation or improper adjustment.

[0079] In other embodiments, taking a helical spring as an example, the end of the second positioning post 122 away from the lower frame 120 can be tapered, frustum, or truncated pyramidal, which facilitates the installation of the elastic element.

[0080] According to some embodiments of the utility model, refer to Figure 13 Please refer to further details. Figures 6 to 10 , Figure 13 for Figure 11 Another structural diagram from a different perspective; Figure 6 This is a schematic diagram showing the connection relationship between the lower frame 120 and the connecting device 200 when the connecting device 200 is in the second position. Figure 7 for Figure 6 Another structural diagram from a different perspective; Figure 8 for Figure 7 A magnified view of a section at point C; Figure 9 This is a schematic diagram showing the connection relationship between the lower frame 120 and the connecting device 200 when the connecting device 200 is in the first position. Figure 10 for Figure 9 A magnified view of a section at point D; Figure 11 A schematic diagram of an embodiment of the connecting device 200 provided by this utility model.

[0081] The connector 210 has a limiting protrusion 211, and the lower frame 120 has a limiting boss 123 on the periphery of the mounting groove 121. In the first position, the connector 210 abuts against the upper frame 110, and the limiting protrusion 211 is limited to the first side of the limiting boss 123. In the second position, the limiting protrusion 211 is limited to the second side of the limiting boss 123, and the limiting protrusion 211 abuts against the limiting boss 123.

[0082] Thus, in this embodiment, with the limiting protrusion 211 and the limiting boss 123 configured, in the first position, the connecting member 210 abuts against the upper frame 110, and the limiting protrusion 211 is limited to the first side of the limiting boss 123. At this time, even if the elastic force provided by the elastic member is insufficient, the limiting boss 123 will limit the limiting protrusion 211 to the first side of the limiting boss 123. In this way, even in working environments with large vibrations or impacts, the connecting device 200 can still maintain its original function and position, further improving the stability of the connecting device 200.

[0083] In order to enable the connecting device 200 to slide better when switching between the first position and the second position, the limiting boss 123 usually has a first guide slope and a second guide slope. The first guide slope and the second guide slope are respectively arranged on both sides of the limiting boss 123. For example, the limiting boss 123 can also be arranged in a trapezoidal shape.

[0084] When the connecting device 200 switches from the first position to the second position, the limiting protrusion 211 moves from the first side of the limiting boss 123 to the second side along the first guide slope. In the second position, the limiting protrusion 211 and the limiting boss 123 abut against the second guide slope.

[0085] When the connecting device 200 switches from the second position to the first position, the limiting protrusion 211 moves along the second guide slope from the second side of the limiting protrusion 123 to the first side. In the first position, the connecting member 210 abuts against the upper frame 110, and the limiting protrusion 211 is close to the second guide slope. At this time, the setting of the limiting protrusion 123 can, to a certain extent, prevent the connecting device 200 from crossing the limiting protrusion 123, thereby further improving the stability of the connecting device 200 in the first position.

[0086] According to some embodiments of the utility model, refer to Figure 11 and 13 Please refer to further details. Figures 6 to 10 , Figure 11 A schematic diagram of a structure of an embodiment of the connecting device 200 provided by this utility model; Figure 13 for Figure 11 Another structural diagram from a different perspective; Figure 6 This is a schematic diagram showing the connection relationship between the lower frame 120 and the connecting device 200 when the connecting device 200 is in the second position. Figure 7 for Figure 6 Another structural diagram from a different perspective; Figure 8 for Figure 7 A magnified view of a section at point C; Figure 9 This is a schematic diagram showing the connection relationship between the lower frame 120 and the connecting device 200 when the connecting device 200 is in the first position. Figure 10 for Figure 9 A magnified view of a section at point D; Figure 11 A schematic diagram of an embodiment of the connecting device 200 provided by this utility model.

[0087] The connector 210 includes a connecting plate 212, a connecting part 213, and a connecting bracket 214. The connecting part 213 is connected between the connecting plate 212 and the connecting bracket 214. The mounting groove 121 passes through the lower frame 120. The connecting part 213 is located in the mounting groove 121. The lower frame 120 has a first side and a second side. The connecting plate 212 is located on the first side, and the connecting bracket 214 is located on the second side. The limiting protrusion 211 is located on the connecting bracket 214.

[0088] In this embodiment, by positioning the connecting plate 212 and the connecting bracket 214 on both sides of the lower frame 120, a more uniform force distribution can be achieved, thereby improving the stability of the entire connector 210 and preventing loosening due to external forces. The design of the connecting plate 212 on the first side and the connecting bracket 214 on the second side optimizes space utilization. By distributing different parts of the connecting device 200 on both sides of the mounting groove 121, the overall space occupied by the connector 210 is reduced, which helps to achieve a compact layout of the equipment in a limited space. Since the connecting part 213 is located in the mounting groove 121, and through the cooperation between the limiting protrusion 211 and the connecting bracket 214, the design makes the assembly and disassembly of the connector 210 easier. The connecting bracket 214 and the connecting plate 212 are located on both sides of the mounting groove 121, which can be easily connected and fixed, and can also be quickly loosened during disassembly.

[0089] Furthermore, the upper frame 110 and the lower frame 120 enclose an air outlet. The lower frame 120 includes a first frame 120a and a second frame 120b extending along the length of the air outlet of the air conditioner 10. The first frame 120a and the second frame 120b are connected to each other and set at an angle. The connection point of the first frame 120a and the second frame 120b is located at the air outlet. The first frame 120a and the upper frame 110 enclose an installation space. The second frame 120b is located between the first frame 120a and the upper frame 110. The mounting groove 121 is located in the second frame 120b. The first side is the outer side of the lower frame 120, and the second side is the inner side of the lower frame 120.

[0090] Wherein, the first side is the outer side of the lower frame 120, and the second side is the inner side of the lower frame 120. The outer side and the inner side refer to the side with the smaller angle between the first frame 120a and the second frame 120b as the basis, which is the inner side and the side with the larger angle as the outer side.

[0091] In this embodiment, the angled design of the first frame 120a and the second frame 120b, with the connection point between them located at the air outlet, improves airflow and distribution at the air outlet, preventing excessively concentrated or uneven airflow and thus optimizing the airflow effect of the air conditioner 10. The interconnection and angled arrangement of the first frame 120a and the second frame 120b also enhances structural stability and strength. Furthermore, the connection structure between the connecting device 200 and the lower frame 120 is located on the inner side of the lower frame 120, reducing dust accumulation and improving aesthetics.

[0092] According to some embodiments of the utility model, refer to Figure 11 and 13 , Figure 11 A schematic diagram of a structure of an embodiment of the connecting device 200 provided by this utility model; Figure 13 for Figure 11 Another structural diagram from another perspective.

[0093] In this embodiment, the connecting bracket 214 includes a bracket body 214a, a first frame edge 214b, a second frame edge 214c, and a third frame edge 214d. The first frame edge 214b and the third frame edge 214d are disposed on the bracket body 214a, and the second frame edge 214c is connected between the first frame edge 214b and the third frame edge 214d. The bracket body 214a and the second frame edge 214c are respectively connected to the connecting portion 213. The first frame edge 214b is provided with the limiting protrusion 211 on its outer side; or, the third frame edge 214d is provided with the limiting protrusion 211 on its outer side; or, the first frame edge 214b is provided with the limiting protrusion 211 on its outer side, and the third frame edge 214d is provided with the limiting protrusion 211 on its outer side.

[0094] In this embodiment, "inner side" and "outer side" are relative terms. "Inner side" refers to the space formed by the connection between the bracket body 214a, the first frame edge 214b, the second frame edge 214c, and the third frame edge 214d. Thus, the technical solution of this utility model is configured such that during the process of switching the connecting device 200 from the first position to the second position, or from the second position to the first position, the connecting bracket 214 can undergo a certain deformation, acting like a spring arm. This ensures that the installation of the connecting device 200 and the lower frame 120 is neither too tight nor too loose, giving the lower frame 120 the advantage of easy assembly and disassembly. Furthermore, the connecting device 200 has the advantage of not easily detaching from the upper frame 110 and the lower frame 120 in the first position, and not easily detaching from the lower frame 120 in the second position.

[0095] In a preferred embodiment, the first frame edge 214b is provided with the limiting protrusion 211 on its outer side; the third frame edge 214d is provided with the limiting protrusion 211 on its outer side. In this way, the force on the connecting device 200 is more uniform, which can improve the user's feel when operating the connecting device 200 to slide in the mounting groove 121.

[0096] According to some embodiments of the utility model, refer to Figure 8 and 10 , Figure 8 for Figure 7 A magnified view of a portion at point C, where the connecting device 200 is in the second position; Figure 10 for Figure 9A magnified view of a portion at point D, where the connecting device 200 is in the first position.

[0097] In this embodiment, a guide rail 124 is provided on the periphery of the mounting groove 121 on the lower frame 120, and the guide rail 124 extends along the length direction of the mounting groove 121; a mating groove 218 is formed between the first frame edge 214b, the connecting part 213 and the connecting plate 212 to accommodate the installation of the guide rail 124; or, a mating groove 218 is formed between the third frame edge 214d, the connecting part 213 and the connecting plate 212 to accommodate the installation of the guide rail 124; or, a mating groove 218 is formed between the first frame edge 214b, the connecting part 213 and the connecting plate 212, and a mating groove 218 is formed between the third frame edge 214d, the connecting part 213 and the connecting plate 212 to accommodate the installation of the guide rail 124.

[0098] In this embodiment, the technical solution involves setting guide rails 124 around the periphery of the lower frame 120 and the periphery of the mounting groove 121, and forming a mating groove 218 between the frame edge, the connecting part 213, and the connecting plate 212 to accommodate the installation of the guide rails 124. The combination of the guide rails 124 and the mating groove 218 provides a more stable connection, enabling the installed parts to maintain good position and stability during use. Furthermore, this design of the guide rails 124 and the mating groove 218 can improve the robustness of the installation structure without increasing the external space, while simplifying the assembly process and potentially reducing reliance on complex installation tools or manual operation.

[0099] Please refer to some embodiments of the utility model. Figure 8 and 10 , Figure 8 for Figure 7 A magnified view of a portion at point C, where the connecting device 200 is in the second position; Figure 10 for Figure 9 A magnified view of a portion at point D, where the connecting device 200 is in the first position.

[0100] In this embodiment, the lower frame 120 is provided with a limiting rib around the periphery of the mounting groove 121, and the guide rail 124 is located on the side of the limiting rib close to the mounting groove 121; a guide groove 125 is formed between the guide rail 124 and the limiting rib; the first frame edge 214b is provided in the guide groove 125, or the third frame edge 214d is provided in the guide groove 125; or the first frame edge 214b is provided in the guide groove 125, and the third frame edge 214d is provided in the guide groove 125.

[0101] The technical solution of this embodiment, through the combined action of the guide rail 124 and the limiting rib, makes the cooperation between the connecting device 200 and the lower frame 120 more robust, effectively resisting external vibrations or impacts and improving the stability and reliability of the overall structure; especially when the equipment needs to operate in dynamic or vibrating environments, the design can provide better seismic performance. During installation, the frame edge slides through the guide groove 125 to ensure that the components correctly enter the predetermined position, reducing the possibility of misalignment or jamming of the connecting device 200 during installation, and improving the accuracy and efficiency of assembly.

[0102] Furthermore, to further improve the stability of the connecting device 200 installation, the limiting ribs are inclined toward the guide rail 124, and a portion of the limiting ribs protrudes toward the guide rail 124 to form the limiting boss 123. Thus, the inclined limiting ribs and the protruding limiting boss 123 can provide more precise positioning and limiting functions when the guide rail 124 is installed.

[0103] According to some embodiments of the utility model, refer to Figure 6 , Figures 11 to 13 , Figure 6 This is a schematic diagram showing the connection relationship between the lower frame 120 and the connecting device 200 when the connecting device 200 is in the second position. Figure 11 A schematic diagram of a structure of an embodiment of the connecting device 200 provided by this utility model; Figure 12 for Figure 11 Another structural diagram from a different perspective; Figure 13 for Figure 11 Another structural diagram from another perspective.

[0104] In this embodiment, the connector 210 further includes a stop portion 215, a grip portion 216, and a shielding portion 217. The stop portion 215 and the grip portion 216 are disposed on the side of the connecting plate 212 away from the connecting bracket 214. The plug-in member 220 is disposed on the stop portion 215. In the first position, the stop portion 215 abuts against the upper frame 110. The fixing member 230 is disposed on the bracket body. The shielding portion 217 is disposed on the side of the connecting plate 212 near the fixing member 230. The shielding portion 217 is used to shield the mounting groove 121.

[0105] In this embodiment, the stop portion 215 is designed to better resist vibration or external forces, allowing the connector 210 to maintain a fixed position in a vibration or impact environment, avoiding displacement or misalignment caused by impact. The grip portion 216 is designed to make it easier for operators to grasp the connector 210, providing a good feel and support during installation or disassembly. The grip portion 216 allows the connector 210 to be installed more easily in the designated position and quickly disassembled when needed, improving assembly efficiency and ease of operation. The shielding portion 217 is designed on the side of the connecting plate 212 near the fixing member 230. In the first position, the shielding portion 217 effectively prevents external substances (such as dust, moisture, debris, etc.) from entering the lower frame 120 or the installation guide groove 125 from the mounting groove 121. The stop portion 215, grip portion 216, and shielding portion 217 can all be plate-shaped.

[0106] Based on any of the above embodiments, refer to Figures 11 to 13 , Figure 11 A schematic diagram of the structure of an embodiment of the connecting device 200 provided by this utility model; Figure 12 for Figure 11 Another structural diagram from a different perspective; Figure 13 for Figure 11 Another structural diagram from another perspective.

[0107] In this embodiment, at least one of the connecting plate 212, the stop portion 215, the grip portion 216, and the connecting portion 213 is integrally formed with the connecting plate 212. Thus, by integrally forming at least a portion of the connecting plate 212, the stop portion 215, the grip portion 216, or the connecting portion 213 with the connecting plate 212, welding, bolting, or other assembly points between the various parts of the connector 210 can be eliminated, reducing potential structural instability problems caused by loosening or insecure connections in the connector 210. This further improves the reliability of the connection between the upper frame 110 and the lower frame 120.

[0108] Similar to the previous embodiment, in another embodiment, the connecting part 213 and the connecting bracket 214 are integrally formed.

[0109] Similar to the previous embodiment, in another embodiment, the connector 210, the plug-in 220 and the fixing member 230 are integrally formed.

[0110] In this invention, the connecting device 200 and the lower frame 120 are pre-installed with a pin that can remain in the second position, ensuring that the connecting device 200 does not interfere with the assembly process during the next assembly step. When the connecting device 200 is in the second position, the upper and lower frames 120 are fixed. The preload provided by the spring continuously and forcefully presses the pin, preventing the entire frame assembly from shifting or detaching due to the pin loosening during transportation, thus preventing damage from collisions between the two frames. Furthermore, in after-sales service scenarios, when disassembling the lower frame 120, the connecting device 200's latch and the lower frame 120's limiting rib facilitate easy switching to the second position. When installing the upper frame 110 onto the lower frame 120, simply switch the connecting device 200 to the second position; the switching is easy. This improves after-sales assembly efficiency and reliability.

[0111] The present invention also proposes a connecting device 200 for detachably connecting a first housing and a second housing. The first housing is provided with an insertion hole 111. The connecting device 200 includes a connector 210, a fixing member 230, and a plug-in member 220. The connector 210 is movably and switchably disposed on the second housing in a first position and a second position. The fixing member 230 is disposed on the connector 210 and is used to install an elastic member so that the elastic member is limited between the fixing member 230 and the second housing. The elastic member is used to provide a preload force to the connector 210 in the first position and the second position, respectively. The plug-in member 220 is disposed on the connector 210 and is used to be plugged into the insertion hole 111 in the first position so that the second housing is installed on the first housing.

[0112] The technical solution of this utility model, by setting a connecting device 200 and an elastic element, allows the connecting device 200 to be limited to a first or second position when the external force applied to it does not reach a preset value, thus preventing the connecting device 200 from easily loosening. Furthermore, compared to rigid limiting, the elastic limiting provided by the elastic element makes disassembly and assembly relatively easier, and the connecting device 200 is less prone to wear. Thus, during installation, after the connecting device 200 is pre-assembled with the second housing, it can remain in the second position so that it will not interfere with the assembly process during the next assembly step. When the connecting device 200 is in the second position, the upper second housing is fixed, and the pre-tension force provided by the spring can continuously and forcefully press the pin, preventing the entire frame component from becoming loose and shifting due to the pin loosening during transportation, which could further lead to the two frames colliding and being damaged. In addition, in after-sales service scenarios, when disassembling the second housing, the connecting device 200's latch, in conjunction with the second housing's limiting rib, facilitates easy switching of the connecting device 200 to the second position. When the second housing needs to be installed on the first housing, simply switch the connecting device 200 to the second position; the switching is easy. This improves after-sales assembly efficiency and reliability.

[0113] Furthermore, the connecting device 200 can refer to the connecting device 200 in any embodiment of the air conditioner 10 described above. That is to say, in the above scheme, the connecting device 200 can be applied to the detachable connection between any two other housings. It can be understood that the first housing is the upper frame 110 and the second housing is the lower frame 120. These will not be described in detail here.

[0114] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An air conditioner, characterized in that, include: An air conditioner body, the air conditioner body including a top frame and a bottom frame; A connecting device is movably switchable between a first position and a second position on the lower frame; in the first position, the connecting device is connected to the upper frame; in the second position, the connecting device is detached from the upper frame. An elastic element is used to provide preload to the connecting device in a first position and a second position, respectively.

2. The air conditioner as described in claim 1, characterized in that, The elastic element is disposed between the connecting device and the lower frame. When the connecting device is in the first position, the elastic element is in a first compressed state so that the connecting device abuts against the upper frame. When the connecting device is in the second position, the elastic element is in a second compressed state, so that the connecting device abuts against the lower frame.

3. The air conditioner as described in claim 2, characterized in that, The connecting device includes a connector, a plug-in component, and a fixing component, wherein the plug-in component and the fixing component are disposed at opposite ends of the connector; The elastic element is provided on the fixing element, the upper frame is provided with a socket for the plug-in element to be inserted, and the lower frame is provided with a mounting groove for the connector to be installed. In the first position, the connector is inserted into the socket, and the connecting member abuts against the upper frame; in the second position, the connector is disengaged from the socket, and the connecting member abuts against the lower frame.

4. The air conditioner as described in claim 3, characterized in that, The fixing member includes a fixing cylinder and a first positioning post disposed on the fixing cylinder. One end of the fixing cylinder and the first positioning post are connected to the connecting member, and a fixing groove is formed between the fixing cylinder and the first positioning post. The first end of the elastic member is inserted into the fixing groove, and the elastic member is also sleeved on the first positioning post.

5. The air conditioner as described in claim 4, characterized in that, The lower frame is further provided with a second positioning post, and the second end of the elastic element is sleeved on the second positioning post.

6. The air conditioner according to any one of claims 3 to 5, characterized in that, The elastic element is a spring.

7. The air conditioner as described in claim 6, characterized in that, The connector has a limiting protrusion, and the lower frame is provided with a limiting boss around the periphery of the mounting groove; In the first position, the connector abuts against the upper frame, and the limiting protrusion is located on the first side of the limiting protrusion; In the second position, the limiting protrusion is located on the second side of the limiting boss, and the limiting protrusion abuts against the limiting boss.

8. The air conditioner as described in claim 7, characterized in that, The connector includes a connecting plate, a connecting part, and a connecting bracket, wherein the connecting part is connected between the connecting plate and the connecting bracket; The mounting groove extends through the lower frame, the connecting part is located within the mounting groove, the lower frame has a first side and a second side, the connecting plate is located on the first side, and the connecting bracket is located on the second side; the limiting protrusion is located on the connecting bracket.

9. The air conditioner as described in claim 8, characterized in that, The upper frame and the lower frame enclose an air outlet. The lower frame includes a first frame and a second frame extending along the length of the air outlet of the air conditioner. The connection between the first frame and the second frame is located at the air outlet. The first frame and the second frame are connected to each other and are arranged at an angle. The first frame and the upper frame enclose an installation space. The second frame is located between the first frame and the upper frame. The mounting groove is located in the second frame. The first side is the outer side of the lower frame, and the second side is the inner side of the lower frame.

10. The air conditioner as described in claim 8, characterized in that, The connecting bracket includes a bracket body, a first frame side, a second frame side, and a third frame side connected in sequence, and the bracket body and the second frame side are respectively connected to the connecting part; The first frame edge has the limiting protrusion on its outer side; and / or, the third frame edge has the limiting protrusion on its outer side.

11. The air conditioner as described in claim 10, characterized in that, The lower frame is provided with a guide rail on the periphery of the mounting groove, and the guide rail extends along the length of the mounting groove. A mating groove for mounting the guide rail is formed between the first frame edge, the connecting part, and the connecting plate, and / or a mating groove for mounting the guide rail is formed between the third frame edge, the connecting part, and the connecting plate.

12. The air conditioner as described in claim 11, characterized in that, The lower frame is provided with a limiting rib around the periphery of the mounting groove, the guide rail is located on the side of the limiting rib closer to the mounting groove, and a guide groove is formed between the guide rail and the limiting rib; The first frame edge is disposed in the guide groove, and / or the third frame edge is disposed in the guide groove.

13. The air conditioner as described in claim 12, characterized in that, The limiting ribs are inclined toward the guide rail; some of the limiting ribs protrude toward the guide rail to form the limiting boss.

14. The air conditioner as described in claim 10, characterized in that, The connector further includes a stop, a grip, and a shield. The stop and the grip are located on the side of the connecting plate away from the connecting bracket. The plug is located on the stop and the fastener is located on the bracket body. The shield is located on the side of the connecting plate near the fastener and is used to shield the mounting groove.

15. A connecting device for detachably connecting a first housing and a second housing, wherein the first housing is provided with an insertion hole, characterized in that, The connecting device includes: A connector is movably switchable between a first position and a second position in the second housing; A fastener is provided on the connector, the fastener being used to install an elastic element so that the elastic element is confined between the second housing of the fastener, and the elastic element being used to provide preload force to the connector at a first position and a second position respectively; A plug-in member is provided on the connector, the plug-in member being used to insert into the socket in the first position so that the second housing is mounted on the first housing.

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