Patent ID: 12221955

Correspondences between the reference numerals inFIG.1toFIG.3and components are given as below:

10connecting housing;12silencing chamber;14sealing portion;20exhaust pipe assembly;22exhaust pipe;24connecting member;224pipe body;226connecting portion;30sealing member;32first sealing member;34second sealing member;142first limiting portion;1422first step;1424second step;2262second limiting portion;2264first accommodating space;2266sealing groove;1426second accommodating space.

DESCRIPTION OF EMBODIMENTS

In order to unambiguously explain the above objects, features, and advantages of the present disclosure, the present disclosure will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present disclosure and features in the embodiments may be combined with each other without any conflict.

Specific details are set forth in the following description to facilitate a full understanding of the present disclosure. However, the present disclosure can also be implemented in ways different from those described herein. Therefore, the protection scope of the present disclosure is not limited by specific embodiments disclosed below.

Some embodiments of the present disclosure will be described below with reference toFIG.1toFIG.3.

As illustrated inFIG.1, an embodiment of the present disclosure provides a connecting structure. The connecting structure includes a connecting housing10and an exhaust pipe assembly20. The connecting housing10has a silencing chamber12defined therein to reduce the noise of the compressor at work. The exhaust pipe assembly20has one end passing through a sealing portion14and extending into the silencing chamber12, and another end arranged outside the connecting housing10. Thus, the exhaust pipe assembly20enables the silencing chamber12and an outside space of the connecting housing10to be in communication with each other, such that a refrigerant, after flowing into the silencing chamber12for sound reduction, can flow out of the silencing chamber12through the exhaust pipe assembly20.

Further, the exhaust pipe assembly20is detachably connected to the sealing portion14, and thus the exhaust pipe assembly20and the connecting housing10can be made of different materials, thereby saving material costs.

Further, the connecting housing10can be made of PBT material to lower the material costs, and an exhaust pipe22can be made of PA66 material to meet operation requirements of high temperature resistance and high-pressure resistance of the exhaust pipe22.

As illustrated inFIG.1, according to an alternative embodiment, the exhaust pipe assembly20includes the exhaust pipe22, and a connecting member24arranged on the exhaust pipe22. Thus, the connecting member24can connect the exhaust pipe22to the connecting housing10. The exhaust pipe22includes a pipe body224and a connecting portion226. The pipe body224is connected to the connecting portion226, and the connecting portion226is disposed at an end of the pipe body224close to the silencing chamber12. In this embodiment, an end of the connecting portion226facing away from the pipe body224passes through the sealing portion14and extends into the silencing chamber12, and a part of the connecting portion226extending into the sealing portion14is connected to the sealing portion14to restrict movements of the exhaust pipe22towards an outside of the connecting housing10. In this embodiment, an end of the connecting portion226close to the pipe body224is arranged outside the connecting housing10to enable the silencing chamber12to be in communication with the outside space of the connecting housing10through the connecting portion226.

Further, the connecting portion226and the pipe body224are formed as one piece, and accordingly, the exhaust pipe22can have a simple and compact structure and have satisfactory air tightness and high-pressure resistance.

Further, the end of the connecting portion226facing away from the pipe body224is engaged with the sealing portion14to restrict the movements of the exhaust pipe22towards the outside of the connecting housing10.

Further, the end of the connecting portion226facing away from the pipe body224abuts against the sealing portion14. In this way, on the one hand, the movements of the exhaust pipe22towards the outside of the connecting housing10can be restricted; and on the other hand, the exhaust pipe22can be pulled out from its assembly position along the inside of the connecting housing10, so as to detach the exhaust pipe22from the connecting housing10.

As illustrated inFIG.1, according to an alternative embodiment, the connecting member24is detachably connected to the connecting portion226and abuts against the outer wall of the connecting housing10. Thus, the connecting member24can restrict the movements of the exhaust pipe22towards the inside of the connecting housing10, thereby fixing the exhaust pipe22to the connecting housing10. Further, when the connecting member24is detached, the exhaust pipe22can be pulled out from a side of the sealing portion14facing away from the pipe body224to detach the exhaust pipe assembly20from the connecting housing10. In addition, the exhaust pipe22can be inserted from the side of the sealing portion14facing away from the pipe body224, and the connecting member24can be connected to the connecting portion226, thereby fixing and mounting the exhaust pipe assembly20with the connecting housing10.

As illustrated inFIG.1, according to an alternative embodiment, the connecting member24is a nut, the connecting portion226have threads arranged on an outer wall at the end thereof close to the pipe body224and fitting the nut, and the exhaust pipe22is strained and fixed towards a side close to the pipe body224through fitting between the nut and the threads. Further, the fitting between the nut and the threads facilitates the disassembly and assembly of the exhaust pipe assembly20, and the nut can also provide a pretension force for a connection between the connecting portion226and the connecting housing10, thereby improving the stability of the assembly.

Further, one nut is provided. The connecting portion226can be locked and fixed to the connecting housing10by means of the one nut.

Further, two nuts are provided to prevent the nuts from voluntary loosening.

In addition to the features provided in any of the above embodiments, according to an alternative embodiment, the connecting member24is a snap ring, the connecting portion226has a slot provided on the outer wall at the end thereof close to the pipe body224, and the snap ring is arranged in the slot, forming a detachable connection between the exhaust pipe assembly20and the sealing portion14. In this way, the exhaust pipe22and the connecting housing10can be quickly assembled and disassembled.

As illustrated inFIG.1andFIG.2, according to an alternative embodiment, the connecting structure further includes a sealing member30in a shape of a ring sleeved on the connecting portion226. One side of the sealing member30is connected to an outer wall of the connecting portion226, and the other side of the sealing member30is connected to an inner wall of the sealing portion14. Thus, a gap between the outer wall of the connecting portion226and the inner wall of the sealing portion14can be sealed to form a sealing connection between the exhaust pipe22and the sealing portion14, thereby preventing the high-pressure refrigerant from leaking through the gap between the connecting portion226of the exhaust pipe22and the sealing portion14.

Further, the sealing member30includes, but is not limited to, an O-shaped ring, a U-shaped ring, and a C-shaped ring.

As illustrated inFIG.1andFIG.2, according to an alternative embodiment, along a radial direction of the sealing portion14, a first limiting portion142is formed by the inner wall of the sealing portion protruding inwards; and along the radial direction of the sealing portion14, a second limiting portion2262is formed by the outer wall of the connecting portion protruding outwards. In this embodiment, the second limiting portion2262is arranged in the sealing portion14, and along an axial direction of the connecting portion226, a side of the second limiting portion2262close to the pipe body224abuts against a side of the first limiting portion142facing away from the pipe body224, thereby restricting the movements of the exhaust pipe22towards the outside of the connecting housing10.

As illustrated inFIG.1andFIG.2, according to an alternative embodiment, along the radial direction of the sealing portion14, a first accommodating space2264is defined between an outer wall of the second limiting portion2262and the inner wall of the sealing portion14, and the sealing member30is disposed in the first accommodating space2264. In this embodiment, an outer wall of the sealing member30is connected to the inner wall of the sealing portion14, and an inner wall of the sealing member30is connected to the second limiting portion2262, achieving the sealing connection between the exhaust pipe22and the sealing portion14. In addition, by disposing the sealing member30in the first accommodating space2264, the movements of the sealing member30relative to the connecting portion226along the axial direction of the connecting portion226can be restricted, and the sealing member30is prevented from sliding out of the second limiting portion2262during the mounting of the exhaust pipe assembly20.

Further, along the axial direction of the sealing portion14, a second accommodating space1426is defined between the first limiting portion142and the second limiting portion2262. By disposing the sealing member30in the second accommodating space1426, the sealing member30can seal the exhaust pipe22and the sealing portion14, along the axial direction of the sealing portion14. When the connecting member24provides the connecting portion226with a pretension force towards the side of the pipe body224, the sealing member30disposed in the second accommodating space1426can buffer the pressure exerted by the second limiting portion2262on the sealing member30. In this way, it is avoided that the sealing performance of the sealing member30deteriorates when the sealing member30is damaged under an excessive pressure.

As illustrated inFIG.2andFIG.3, according to an alternative embodiment, the connecting structure further includes a sealing groove2266defined in the outer wall of the second limiting portion2262and located within the sealing portion14, and the first accommodating space2264is defined by the sealing groove2266and the inner wall of the sealing portion14. The sealing member30includes a first sealing member32arranged in the sealing groove2266. Along the radial direction of the first sealing member32, an outer wall of the first sealing member32is connected to the inner wall of the sealing portion14, and an inner wall of the first sealing member32is connected to the bottom of the sealing groove2266, thereby sealing the gap between the connecting portion226and the sealing portion14along the radial direction of the sealing portion14, and forming the sealing connection between the exhaust pipe22and the sealing portion14.

For example, along the radial direction of the sealing portion14, a depth of the sealing groove2266is smaller than a length of a cross section of the first sealing member32, to ensure that the outer wall and the inner wall of the first sealing member32are connected to the inner wall of the sealing portion14and the sealing groove2266, respectively.

As illustrated inFIG.2, in addition to the features provided in any of the above embodiments, it is further defined that: the first limiting portion142is in a stepped structure and includes a first step1422arranged on one side of the first limiting portion142facing away from the pipe body224, and a second step1424arranged on the other side of the first limiting portion142close to the pipe body224. In this way, along the axial direction of the connecting portion226, the second limiting portion2262abuts against the first step1422with the side close to the pipe body224to define the second accommodating space1426between the second limiting portion2262and the second step1424. The sealing member can include a second sealing member34arranged in the second accommodating space1426, and along the axial direction of the second sealing member34, two ends of the second sealing member34are connected to the second limiting portion2262and the second step1424, respectively. Thus, along the axial direction of the sealing portion14, the gap between the connecting portion226and the sealing portion14can be sealed, forming the sealing connection between the exhaust pipe22and the sealing portion14.

For example, along the axial direction of the sealing portion14, a length of a gap between the second limiting portion2262and the second step1424is smaller than a length of a cross section of the second sealing member34to ensure that the two ends of the second sealing member34are connected to the second limiting portion2262and the second step1424, respectively.

As illustrated inFIG.1, according to an alternative embodiment, the exhaust silencer includes a casing and the connecting structure as described in any of the above embodiments, the connecting housing10of the connecting structure is connected to the casing of the exhaust silencer, and an exhaust silencing chamber12is in communication with the silencing chamber12. Therefore, the exhaust silencer has the technical effects as described in any of the above embodiments, and the detailed description thereof will be omitted herein.

According to yet another embodiment of the present disclosure, a silencer is provided. The silencer includes a suction silencer and the exhaust silencer as described in the above embodiment and connected to the suction silencer, the suction silencer has a suction silencing chamber12defined therein and configured to reduce the noise of the compressor at work, and the exhaust silencing chamber12is in communication with the suction silencing chamber12. Therefore, the silencer has the technical effects as described in the above embodiment, and the detailed description thereof will be omitted herein.

According to still yet another embodiment of the present disclosure, a compressor is provided. The compressor includes a compressor housing, and the silencer as described in the above embodiment and arranged in the compressor housing. Therefore, the compressor has the technical effects as described in the above embodiment, and the detailed description thereof will be omitted herein.

As illustrated inFIG.1andFIG.2, an exemplary embodiment of the present disclosure provides a connecting structure. The connecting structure includes a silencer housing (i.e., the connecting housing10), an inner exhaust pipe (i.e., the exhaust pipe22), an O-shaped ring 1 (i.e., the first sealing member32), an O-shaped ring 2 (i.e., the second sealing member34), and a nut (i.e., the connecting member24). In this embodiment, one end of the inner exhaust pipe passes through the silencer housing, and the other end of the inner exhaust pipe is arranged outside the silencer housing. Thus, the inner exhaust pipe enables an inner space of the silencer housing to be in communication with an outer space of the silencer housing. The O-shaped ring 1 and the O-shaped ring 2 are respectively sleeved on the inner exhaust pipe extending into the silencer housing. The inner exhaust pipe and the silencer housing are radially sealed by the O-shaped ring 1, and the inner exhaust pipe and the silencer housing are axially sealed by the O-shaped ring 2. The inner exhaust pipe has threads provided on a lower end portion thereof, and the nut is disposed on the lower end portion of the inner exhaust pipe for tightening. The inner exhaust pipe is fixed by pulling down, and the two O-shaped rings can exert the sealing effect. In this embodiment, the inner exhaust pipe belongs to an exhaust side and is subject to higher exhaust pressure. The two O-shaped rings are configured to seal the inner exhaust pipe and the silencer housing along an axial direction and a radial direction of the inner exhaust pipe, respectively, so as to improve the sealing effect.

According to an alternative embodiment, a one-piece silencer is provided. The one-piece silencer includes the connecting structure according to the previous embodiment. In this embodiment, the one-piece silencer housing (i.e., the connecting housing10) is made of the PBT material, thereby saving material costs, and the inner exhaust pipe (i.e., the exhaust pipe22) is made of the PA66 material, thereby satisfying the operation requirements of high temperature resistance and high-pressure resistance on the exhaust side while having the sealing effect.

According to the connecting structure provided by the present disclosure, the exhaust pipe assembly and the sealing portion are detachably connected to each other. Thus, different materials can be used to reduce material costs under the premise of satisfying the operation requirements of the connecting housing and the exhaust pipe.

In the present disclosure, terms “first”, “second”, and “third” are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. The term “plurality of” means at least two, unless otherwise specifically defined. Terms such as “install”, “connect”, “connect to”, “fix” and the like should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or a connection as one piece; and it may be a direct connection, or an indirect connection through an intermediate. For those skilled in the art, the specific meaning of the above-mentioned terms in the present disclosure can be understood according to specific circumstances.

In the description of the present disclosure, it should be understood that the orientation or position relationship indicated by the terms “upper”, “lower”, “left”, “right”, “front”, “rear”, etc., is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the pointed apparatus or unit must have a specific orientation, or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure.

In the description of this specification, descriptions with reference to the terms “an embodiment”, “some embodiments”, or “specific embodiments” etc., mean that specific features, structure, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner.

The above are merely preferred embodiments of the present disclosure, but are not intended to limit the present disclosure. Various changes and variations of the present disclosure are conceivable for those skilled in the art. Any modification, equivalent replacement, improvement, etc., made within the spirit and principle of the present disclosure shall be included within the protection scope of the present disclosure.