Patent Description:
At present, an electric vehicle adopts hydraulic pressure to cool a battery pack, which increases the heat exchange capacity in the battery pack; the temperature of a battery cell in the battery pack is transferred to and processed by a cool-heat exchange module outside the battery pack through liquid flow, to balance a battery temperature, improve the full capacity of the battery, and directly improve performance indicators such as limited use environment, power performance, and battery life of the vehicle. However, after the liquid cooling plug-in members on the battery pack are connected, floating occurs usually due to vehicle body vibration and other reasons and the liquid cooling plug-in member has insufficient load, causing the outflow and splashing of a liquid.

<CIT> relates to a coupling part for a multi-coupling, having at least one carrier receptacle and at least one connection carrier arranged floating on the carrier receptacle, on which connections for media, energy and/or signal transmission are arranged. The carrier receptacle and/or the connection carrier are monolithically connected to at least one spring element, via which the connection carrier is supported on the carrier receptacle.

A technical problem to be solved by the present invention is to provide a liquid cooling plug-in assembly, a liquid cooling plug-in device and a battery pack assembly, to overcome such defects of an existing liquid cooling plug-in member as the outflow and splashing of a liquid, caused by the insufficient float.

The present invention solves the above technical problem through the following technical solutions.

Provided is a liquid cooling plug-in assembly, including a first fixed plate, a floating plate, at least one first elastic member, and a plurality of plug-in members, wherein the plurality of plug-in members are all connected to the floating plate, the first fixed plate is provided with a movement cavity therein, the floating plate and the first elastic member are both located in the movement cavity, and the floating plate is in floating connection with the first fixed plate by means of the first elastic member.

In this solution, with the above-mentioned structural form, the plurality of plug-in members are in floating connection with the first fixed plate by means of the first elastic member, so that the plug-in member has a large float, thus greatly enhancing the stability of the connection and effectively avoiding the outflow and splashing of a liquid in the plug-in member.

Preferably, a length direction of the first elastic member is the same as an insertion direction of the plug-in member, and two ends of the first elastic member abut against the first fixed plate and the floating plate, respectively.

Preferably, the first elastic member is configured as a belleville spring.

Preferably, the liquid cooling plug-in assembly further includes a plurality of second elastic members; the plurality of second elastic members are all located in the movement cavity, two ends of the second elastic member are respectively connected to the first fixed plate and the floating plate, and the plurality of second elastic members are distributed around an outer peripheral edge of the floating plate.

In this solution, with the above-mentioned structural form and by virtue of the plurality of second elastic members, the floating connection of the floating plate and adjustment of a position state are realized, and a large float is achieved, thereby effectively avoiding the outflow and splashing of a liquid in the plurality of plug-in members connected to the floating plate and greatly improving the stability of the liquid cooling plug-in assembly.

In addition, the plurality of second elastic members act on the periphery of the floating plate, which effectively prevents the floating plate from shifting, displacement and shaking during a moving process.

Preferably, the insertion directions of the plurality of plug-in members are all perpendicular to a length direction of the second elastic member.

In this solution, with the above-mentioned structural form and by virtue of the second elastic members, the plurality of plug-in members move along a plate plane direction of the floating plate to conduct position adjustment, thereby effectively avoiding the outflow and splashing of the liquid in the plug-in member and improving the stability of the liquid cooling plug-in assembly.

Preferably, the second elastic member is configured as a tension spring.

According to the invention, the first fixed plate includes a fixed frame, a front cover plate and a rear cover plate, the front cover plate and the rear cover plate are respectively connected to two sides of the fixed frame, the movement cavity is defined by the front cover plate, the fixed frame and the rear cover plate, and the first elastic member is pressed between the floating plate and the rear cover plate.

In this solution, with the above-mentioned structural form, the structure is simplified and the liquid cooling plug-in assembly can be produced more conveniently.

Preferably, the liquid cooling plug-in assembly further includes a sealing member; the front cover plate is provided with a first connection opening, the first connection opening is in communication with the movement cavity, the floating plate is located in the first connection opening and the movement cavity, the first sealing member is connected to the front cover plate, and the first sealing member continuously and incessantly surrounds the first connection opening.

In this solution, with the above-mentioned structural form, the first sealing member is mounted on the front cover plate to perform a sealing function, which effectively prevents dust and other small particles from entering the movement cavity through the first connection opening in the actual use of the liquid cooling plug-in assembly, thus ensuring the reliability of the liquid cooling plug-in assembly.

Preferably, the rear cover is provided with a second connection opening, the second connection opening is in communication with the movement cavity, the floating plate passes through the second connection opening and is connected to the plug-in member, the liquid cooling plug-in assembly further includes a second sealing member, the second sealing member continuously and incessantly surrounds the second connection opening, and the second sealing member is connected to the rear cover plate and pressed between the rear cover plate and the floating plate.

In this solution, with the above-mentioned structural form, the second sealing member is mounted on the rear cover plate to perform a sealing function, which effectively prevents dust and other small particles from entering the movement cavity through the second connection opening in the actual use of the liquid cooling plug-in assembly, thus ensuring the reliability of the liquid cooling plug-in assembly.

Preferably, the floating plate is provided with at least one mounting hole on a side facing the front cover plate, the liquid cooling plug-in assembly further includes at least one positioning pin, one end of the positioning pin is connected to the mounting hole, and the other end of the positioning pin extends outward along an insertion direction of the plug-in member.

In this solution, with the above-mentioned structural form, the positioning pin has a guiding and positioning function to realize accurate insertion of the floating plate.

Preferably, the mounting hole penetrates the floating plate, and the first elastic member is inserted into the mounting hole and abuts against the positioning pin.

In this solution, with the above-mentioned structural form, the mounting hole will limit the first elastic member, thereby effectively avoiding the offset and displacement of the first elastic member during use, improving the stability of the liquid cooling plug-in assembly, and realizing convenient installation.

Preferably, the floating plate is provided with a plurality of first liquid through holes, the plurality of first liquid through holes are in one-to-one correspondence with the plurality of plug-in members, the plug-in member is in threaded connection to one end of the first liquid through hole, and the other end of the first liquid through hole is configured to communicate with an external liquid supply system.

In this solution, with the above-mentioned structural form, the first liquid through hole in the floating plate is in communication with the plug-in member, which facilitates the assembly and ensures convenient use.

Further provided is a liquid cooling plug-in device, including a matching plug-in assembly and the liquid cooling plug-in assembly as described above, and the matching plug-in assembly is detachably connected to the liquid cooling plug-in assembly.

In this solution, with the above-mentioned structural form and by virtue of the first elastic member, the plug-in member has a large float, thus greatly enhancing the stability of the connection, effectively avoiding the outflow and splashing of the liquid in the plug-in member, realizing no leakage during the use of the liquid cooling plug-in device, and prolonging the service life of the liquid cooling plug-in device.

Preferably, the matching plug-in assembly includes a second fixed plate and a plurality of matching members, the plurality of matching members are all connected to the second fixed plate and in one-to-one correspondence with the plurality of plug-in members, and the matching member is detachably connected to the liquid cooling plug-in assembly and in communication with the plug-in member.

Preferably, the second fixed plate includes a plurality of second liquid through holes, and the plurality of second liquid through holes are in one-to-one correspondence with the matching members, the matching member includes an insert and a pipe joint, the insert is in threaded connection to one end of the second liquid through hole, the pipe joint is in threaded connection to the other end of the second liquid through hole, the insert is inserted into the floating plate or the plug-in member, and the plug-in member, the insert and the pipe joint are in mutual communication.

In this solution, with the above-mentioned structural form, the assembly of the matching plug-in assembly is facilitated and convenient use is ensured.

Preferably, the liquid cooling plug-in assembly further includes a first sealing member connected to the first fixed plate, the second fixed plate is provided with a protruding ring on a side facing the first fixed plate, the protruding ring and the first sealing member both continuously and incessantly surround the plurality of matching members, and the protruding ring abuts against the first sealing member.

In this solution, with the above-mentioned structural form, the protruding ring closely abuts against the first sealing member and the sealing effect is further enhanced, thereby preventing dust and other small particles from entering the movement cavity, and improving the reliability of the liquid cooling plug-in device.

Preferably, the liquid cooling plug-in assembly further includes at least one positioning pin, the positioning pin is connected to the floating plate and extends outward in a direction of the matching plug-in assembly, the matching plug-in assembly further includes at least one positioning sleeve, the positioning sleeve is connected to the second fixed plate, the positioning pins are in one-to-one correspondence with the positioning sleeves, and the positioning pin is inserted in the positioning sleeve.

In this solution, with the above-mentioned structural form, the positioning sleeve and the positioning pin can play a guiding and positioning role, which improves the plug-in accuracy of the liquid cooling plug-in assembly and the matching plug-in assembly and improves the stability of the liquid cooling plug-in device.

Preferably, the matching member is configured as a liquid cooling socket, and the plug-in member is configured as a liquid cooling plug; or, the matching member is configured as a liquid cooling plug, and the plug-in member is configured as a liquid cooling socket; and the liquid cooling plug is matched with the liquid cooling socket.

Further provided is a battery pack assembly, including the liquid cooling plug-in device as described above.

In this solution, with the above-mentioned structural form, the temperature control of the battery pack is realized and the performance indicators of the battery pack are improved. Moreover, the outflow and splashing of the liquid are effectively avoided, and the stability of the battery pack assembly is greatly improved.

On the basis of conforming to common knowledge in the art, the above-mentioned preferred conditions can be combined arbitrarily to obtain preferred embodiments of the present invention.

The positive and progressive effects of the present invention are as follows.

In the liquid cooling assembly, the liquid cooling device and the battery pack assembly of the present invention, the floating plate is in floating connection with the first fixed plate by means of the first elastic member, so that the plug-in member has a large float, thus greatly enhancing the stability of the connection and effectively avoiding the outflow and splashing of the liquid in the plug-in member.

The following further illustrates the present invention more clearly and completely by way of embodiments in conjunction with the drawings, but the present invention is not limited to the scope of the embodiments.

As shown in <FIG>, the liquid cooling plug-in device of the embodiment of the present invention includes a liquid cooling plug-in assembly <NUM> and a matching plug-in assembly <NUM>. The matching plug-in assembly <NUM> is detachably connected to the liquid cooling plug-in assembly <NUM>. The liquid cooling plug-in assembly <NUM> includes a first fixed plate <NUM>, a floating plate <NUM>, at least one first elastic member <NUM> and a plurality of plug-in members <NUM>. The plurality of plug-in members <NUM> are all connected to the floating plate <NUM>, the first fixed plate <NUM> is provided therein with a movement cavity <NUM>, the floating plate <NUM> and the first elastic member <NUM> are both located in the movement cavity <NUM>, and the floating plate <NUM> is in floating connection with the first fixed plate <NUM> by means of the first elastic member <NUM>. The floating connection of the floating plate <NUM> in the movement cavity <NUM> is realized through the first elastic member <NUM>, which will drive the plurality of plug-in members <NUM> to float at the same time. The plurality of plug-in members <NUM> are configured to communicate with the matching plug-in assembly <NUM>. Cooling water provided by the matching plug-in assembly <NUM> will take a cooling effect through the plurality of plug-in members <NUM> of the liquid cooling plug assembly <NUM>; the plug-in <NUM> has a large float by means of the first elastic member <NUM>; therefore, the stability of the connection of the liquid cooling plug-in assembly <NUM> is enhanced, the outflow and splashing of the liquid in the plug-in member <NUM> are effectively avoided, no leakage is realized during the use of the liquid cooling plug-in device, and the service life of the liquid cooling plug-in device is prolonged.

A length direction of the first elastic member <NUM> is the same as an insertion direction of the plug-in member <NUM>, and two ends of the first elastic member <NUM> abut against the first fixed plate <NUM> and the floating plate <NUM>, respectively. In use, the plurality of plug-in members <NUM> move along an axial direction of the plug-in member <NUM> to realize plug-in connection between the liquid cooling plug-in assembly <NUM> and the matching plug-in assembly <NUM>, that is, moving along the insertion direction of the plug-in member <NUM> can achieve communication between the plurality of plug-in members <NUM> and the matching plug-in assembly <NUM>; the length direction of the first elastic member <NUM> is the same as an elastic direction of the first elastic member <NUM>; the insertion direction of the plug-in member <NUM> is the same as the elastic direction of the first elastic member <NUM>, so that the plug-in member <NUM> can move and adjust the position state during the plug-in movement, which realizes the insertion of the plug-in member <NUM> and improves the stability of the liquid cooling plug-in device.

The liquid cooling plug-in assembly <NUM> further includes a plurality of second elastic members <NUM>, the plurality of second elastic members <NUM> are all located in the movement cavity <NUM>, two ends of the second elastic member <NUM> are respectively connected to the first fixed plate <NUM> and the floating plate <NUM>, and the plurality of second elastic members <NUM> are distributed around an outer peripheral edge of the floating plate <NUM>. By virtue of the plurality of second elastic members, the floating connection of the floating plate <NUM> and adjustment of the position state are realized, and a large float is achieved, thereby effectively avoiding the outflow and splashing of a liquid in the plurality of plug-in members <NUM> connected to the floating plate <NUM> and greatly improving the stability of the liquid cooling plug-in device. Moreover, the plurality of second elastic members <NUM> act on the periphery of the floating plate <NUM>, which effectively prevents the floating plate <NUM> from shifting, displacement and shaking during a moving process. The floating plate <NUM> is of a square structure, the number of second elastic members <NUM> is four, and the four second elastic members <NUM> are respectively arranged at four corners of the floating plate <NUM>.

The insertion directions of the plurality of plug-in members <NUM> are all perpendicular to a length direction of the second elastic member <NUM>. By virtue of the first elastic member <NUM>, the floating plate <NUM> can move in the movement cavity <NUM> along a thickness direction of the floating plate <NUM> to conduct position adjustment; by virtue of the second elastic member <NUM>, the floating plate <NUM> can moves in the movement cavity <NUM> along a plate plane direction of the floating plate <NUM> to conduct position adjustment; therefore, the plurality of plug-in members <NUM> can move with the displacement of the floating plate <NUM>, which effectively avoids the outflow and splashing of a liquid in the plug-in members <NUM> and improves the stability of the liquid cooling plug-in device. Preferably, the second elastic member <NUM> is configured as a tension spring.

The matching plug-in assembly <NUM> includes a second fixed plate <NUM> and a plurality of matching members <NUM>; the plurality of matching members <NUM> are all connected to the second fixed plate <NUM> and are in one-to-one correspondence with the plurality of plug-in members <NUM>; the matching member <NUM> is detachably connected to the liquid cooling plug-in assembly <NUM> and in communication with the plug-in member <NUM>. The plurality of matching members <NUM> are all installed on the second fixed plate <NUM> and detachably connected to the liquid cooling plug-in assembly <NUM>. When the plurality of matching members <NUM> are connected to the liquid cooling plug-in assembly <NUM>, the matching members <NUM> are in communication with the plug-in members <NUM>; when the plurality of matching members <NUM> are detached from the liquid cooling plug-in assembly <NUM>, the matching members <NUM> are disconnected from the plug-in members <NUM>. The number of matching members <NUM> and the number of plug-in members <NUM> are not defined. The plurality of matching members <NUM> and the plurality of plug-in members <NUM> each include a liquid inlet pipe and a liquid outlet pipe, and circulating cooling is realized through the liquid inlet pipe and the liquid outlet pipe.

The matching member <NUM> may be configured as a liquid cooling socket, the plug-in <NUM> may be configured as a liquid cooling plug, and the liquid cooling plug is matched with the liquid cooling socket. The liquid cooling plug is inserted into and in communication with the liquid cooling socket to realize the inflow and outflow of cooling water. Certainly, the matching member <NUM> may also be configured as a liquid cooling plug, the plug-in <NUM> may be configured as a liquid cooling socket, and the liquid cooling plug is matched with the liquid cooling socket. The matching member <NUM> can pass through the floating plate <NUM> to come into direct plug-in communication with the plug-in member <NUM>. Certainly, the matching member <NUM> is not limited to coming into direct plug-in communication with the plug-in member <NUM>, and the matching member <NUM> may also be indirectly connected with the plug-in member <NUM> and come into communication with the plug-in member <NUM>, and the matching element <NUM> is inserted into the floating plate <NUM> and comes into communication with the plug-in member <NUM> through the floating plate <NUM>.

The floating plate <NUM> may be provided with a plurality of first liquid through holes <NUM>, and the plurality of first liquid through holes <NUM> are in one-to-one correspondence with the plurality of plug-in members <NUM>; the plug-in member <NUM> is in threaded connection to one end of the first liquid through hole <NUM>, and the other end of the first liquid through hole <NUM> is configured to communicate with an external liquid supply system. One end of the first liquid through hole <NUM> is in threaded connection to the plug-in member <NUM>, the matching member <NUM> is inserted into the other end of the first liquid through hole <NUM>, and the matching plug-in assembly <NUM> is in communication with the external liquid supply system, so that the cooling water flows into the matching plug-in assembly <NUM> via the matching member <NUM>, and flows to the plug-in member <NUM> via the first liquid through hole <NUM>, and finally realizes a cooling operation. The plurality of plug-in members <NUM> each include a liquid inlet pipe and a liquid outlet pipe, and the cooling water flows in the plug-in member through the liquid inlet pipe and conducts the cooling operation, and then flows out through the liquid outlet pipe, and returns to the external liquid supply system through the matching plug-in assembly <NUM>, thus realizing the circulating cooling. The communication between the matching member <NUM> and the plug-in member <NUM> is realized through the first liquid through hole <NUM> in the floating plate <NUM>, which realizes simple assembly and convenient use.

The second fixed plate <NUM> includes a plurality of second liquid through holes <NUM>, and the plurality of second liquid through holes <NUM> are in one-to-one correspondence with the matching members <NUM>. The matching member <NUM> includes an insert <NUM> and a pipe joint <NUM>. The insert <NUM> is in threaded connection to one end of the second liquid through hole <NUM>, the pipe joint <NUM> is in threaded connection to the other end of the second liquid through hole <NUM>, the insert <NUM> is inserted into the floating plate <NUM> or the plug-in member <NUM>, and the plug-in member <NUM>, the insert <NUM> and the pipe joint <NUM> are in mutual communication. During the cooling operation, the cooling water will flow by the insert <NUM>, the second liquid through hole <NUM> and the pipe joint <NUM> in sequence to finally reach the liquid cooling plug-in assembly <NUM>, which realizes simple assembly and convenient use.

A sealing member may be arranged in the pipe joint <NUM>, and the sealing member can move in the pipe joint <NUM> to realize the unblocking or blocking of a pipeline in the pipe joint <NUM>. In an initial state, the pipe joint <NUM> is not inserted into the floating plate <NUM> or the plug-in member <NUM>, and the sealing member blocks the pipeline in the pipe joint <NUM>, so that the liquid in the matching plug-in assembly <NUM> will not leak out; in use, the pipe joint <NUM> is inserted into the floating plate <NUM> or the plug-in member <NUM>, and the sealing member moves in the pipe joint <NUM> to unblock the pipeline in the pipe joint <NUM>, so that the matching member <NUM> comes into communication with the plug-in member <NUM> to implement the cooling operation of the liquid cooling plug-in device. Through the disassembly and assembly of the liquid cooling plug-in assembly <NUM> and the matching plug-in assembly <NUM>, the matching member <NUM> and the plug-in member <NUM> can come into mutual communication and can be disconnected from each other, thus avoiding the leakage of the liquid and realizing automatic control.

In the liquid cooling plug-in assembly <NUM> according to the embodiments of the present invention, the first fixed plate <NUM> includes a fixed frame <NUM>, a front cover plate <NUM>, and a rear cover plate <NUM>. The front cover plate <NUM> and the rear cover plate <NUM> are respectively connected to two sides of the fixed frame <NUM>, the movement cavity <NUM> is defined by the front cover plate <NUM>, the fixed frame <NUM> and the rear cover plate <NUM>, and the first elastic member <NUM> is pressed between the floating plate <NUM> and the rear cover plate <NUM>. During a process of manufacturing the liquid cooling plug-in assembly <NUM>, two ends of each of the plurality of second elastic members <NUM> are connected to the floating plate <NUM> and the fixed frame <NUM> respectively, and then the front cover plate <NUM> and the rear cover plate <NUM> are installed. During the installation of the rear cover plate <NUM>, the first elastic member <NUM> is pressed between the rear cover plate <NUM> and the floating plate <NUM>. The effects of simple structure and convenient manufacturing are achieved.

The floating plate <NUM> is provided with at least one mounting hole <NUM> on a side facing the front cover plate <NUM>; the liquid cooling plug-in assembly further includes at least one positioning pin <NUM>, one end of the positioning pin <NUM> is connected to the mounting hole <NUM>, and the other end of the positioning pin <NUM> extends outward along the insertion direction of the plug-in member <NUM>. The positioning pin <NUM> has a guiding and positioning function to realize the accurate insertion of the matching member <NUM> into the first liquid through hole <NUM> in the floating plate <NUM>.

The mounting hole <NUM> may penetrate the floating plate <NUM>, and the first elastic member <NUM> is inserted into the mounting hole <NUM> and abuts against the positioning pin <NUM>. The mounting hole <NUM> will limit the first elastic member <NUM>, thereby effectively avoiding the offset and dislocation of the first elastic member <NUM> during use, improving the stability of the liquid cooling plug-in assembly <NUM>, and realizing convenient installation. Preferably, the first elastic member <NUM> is configured as a belleville spring.

The matching plug-in assembly <NUM> may also include at least one positioning sleeve <NUM>, which is connected to the second fixed plate <NUM>; the positioning pins <NUM> are in one-to-one correspondence with the positioning sleeves <NUM>, and the positioning pin <NUM> is inserted in the positioning sleeve <NUM>. The positioning sleeve <NUM> and the positioning pin <NUM> can play a guiding and positioning role, which improves the plug-in accuracy of the liquid cooling plug-in assembly <NUM> and the matching plug-in assembly <NUM>, and improving the stability of the liquid cooling plug-in device.

The movement of the floating plate <NUM> is based on the positioning pin <NUM> and the positioning sleeve <NUM>. When the positioning pin <NUM> is inserted into the positioning sleeve <NUM> and deep into the positioning sleeve <NUM>, the floating plate <NUM> will move with the displacement of the positioning pin <NUM>. The positioning pin <NUM> is inserted into the positioning sleeve <NUM> first, and the matching member <NUM> is not inserted into the first liquid through hole <NUM>. When the positioning pin <NUM> goes deep into the bottom of the positioning sleeve <NUM>, the matching member <NUM> is accurately inserted into the first liquid through hole <NUM>. In this way, the positioning pin <NUM> and the positioning sleeve <NUM> can play the guiding and positioning role first, which ensures the plug-in accuracy of the liquid cooling plug-in assembly <NUM> and the matching plug-in assembly <NUM>.

The positioning sleeve <NUM> can be riveted to the second fixed plate <NUM>, which strengthens the structural connection strength of the matching plug-in assembly <NUM>. The number of positioning sleeves <NUM> and the number of positioning pins <NUM> can both be two, the two positioning sleeves <NUM> are respectively disposed at two ends of the second fixed plate <NUM>, and a plurality of matching members <NUM> are located between the two positioning sleeves <NUM>. The cross-sectional shape of the positioning sleeve <NUM> and the cross-sectional shape of the positioning pin <NUM> are not limited to circles, and they can also be squares, diamonds, special shapes, and the like as long as the positioning pin <NUM> can move in the positioning sleeve <NUM> along its length direction.

The liquid cooling plug-in assembly <NUM> may further include a first sealing member <NUM>, the front cover plate <NUM> is provided with a first connection opening <NUM>, the first connection opening <NUM> is in communication with the movement cavity <NUM>, the floating plate <NUM> is located in the first connection opening <NUM> and the movement cavity <NUM>, and the first sealing member <NUM> is connected to the front cover plate <NUM> and continuously and incessantly surrounds the first connection opening <NUM>. The positioning pin <NUM> will extend out of a front side of the first fixed plate <NUM>, the positioning pin <NUM> and the first liquid through hole <NUM> will both be matched with and connected to the matching plug-in assembly <NUM> through the first connection opening <NUM>, and the first sealing member <NUM> is mounted on the front cover plate <NUM> to perform a sealing function, thereby effectively preventing dust and other small particles from entering the movement cavity <NUM> through the first connection opening <NUM> in the actual use of the liquid cooling plug-in assembly <NUM> and ensuring the reliability of the liquid cooling plug-in assembly <NUM>.

The second fixed plate <NUM> is provided with a protruding ring <NUM> on a side facing the first fixed plate <NUM>, the protruding ring <NUM> and the first sealing member <NUM> both continuously and incessantly surround the plurality of matching members <NUM>, and the protruding ring <NUM> abuts against the first sealing member <NUM>. During the use of the liquid cooling plug-in device, the protruding ring <NUM> closely abuts against the first sealing member <NUM> and the sealing effect is further enhanced, thereby preventing dust and other small particles from entering the movement cavity <NUM>, and improving the reliability of the liquid cooling plug-in device.

The rear cover plate <NUM> is provided with a second connection opening <NUM>, the second connection opening <NUM> is in communication with the movement cavity <NUM>, the floating plate <NUM> passes through the second connection opening <NUM> and is connected to the plug-in member <NUM>. The liquid cooling plug-in assembly <NUM> further includes a second sealing member <NUM> which continuously and incessantly surrounds the second connection opening <NUM>, and the second sealing member <NUM> is connected to the rear cover plate <NUM> and pressed between the rear cover plate <NUM> and the floating plate <NUM>. The floating plate <NUM> will be in threaded connection with the plurality of plug-in members <NUM> through the second connection opening <NUM>, and the second sealing member is mounted on the rear cover plate to perform a sealing function, thereby effectively preventing dust and other small particles from entering the movement cavity <NUM> through the second connection opening <NUM> in the actual use of the liquid cooling plug-in assembly and ensuring the reliability of the liquid cooling plug-in assembly <NUM>. Both the first sealing member <NUM> and the second sealing member <NUM> may be configured as sealing sleeves, and the sealing sleeves are fixed on the first fixed plate <NUM> by bolts.

Claim 1:
A liquid cooling plug-in assembly (<NUM>), comprising a first fixed plate (<NUM>), a floating plate (<NUM>), at least one first elastic member (<NUM>), and a plurality of plug-in members (<NUM>), wherein the plurality of plug-in members (<NUM>) are all connected to the floating plate (<NUM>), the first fixed plate (<NUM>) is provided with a movement cavity (<NUM>) therein, the floating plate (<NUM>) and the first elastic member (<NUM>) are both located in the movement cavity (<NUM>), and the floating plate (<NUM>) is in floating connection with the first fixed plate (<NUM>) by means of the first elastic member (<NUM>),
characterized in that the first fixed plate (<NUM>) comprises a fixed frame (<NUM>), a front cover plate (<NUM>) and a rear cover plate (<NUM>), the front cover plate (<NUM>) and the rear cover plate (<NUM>) are respectively connected to two sides of the fixed frame (<NUM>), the movement cavity (<NUM>) is defined by the front cover plate (<NUM>), the fixed frame (<NUM>) and the rear cover plate (<NUM>), and the first elastic member (<NUM>) is pressed between the floating plate (<NUM>) and the rear cover plate (<NUM>).